CN105214854B - A kind of micro-size fraction dry-discharge system for tailings and tailing dry-type emission technology - Google Patents

Abstract

The present invention relates to a kind of micro-size fraction dry-discharge system for tailings and tailing dry-type emission technology, including sieve every slag, agitator tank, Pulp pump, filter, disk type dehydrator and filter press, micro-size fraction mine tailing weeded out except big slag into 0.5mm every slag；Remove the mine tailing after big slag to enter temporary in agitator tank and stir evenly, being pumped into 0.8mm filters by slurry after stirring evenly carries out filtering impurity elimination；Mine tailing after impurity elimination enters disk type dehydrator and carries out concentration operation, obtains concentration ore pulp and dewaterer overflow water；Concentration ore pulp is dehydrated into filter press, and the filter cake of the mineral aggregate formation water content 10 ~ 23% after dehydration is transported to tailing heap and stored up, and the clear water and dewaterer overflow water of filter press abjection are together as backwater reuse.The micro-size fraction dry-discharge system for tailings and tailing dry-type emission technology, floor space are small, and without flocculant, dewatering efficiency is high.

Description

A kind of micro-size fraction dry-discharge system for tailings and tailing dry-type emission technology

Technical field

The present invention relates to a kind of ore-sorting system, more particularly to a kind of micro-size fraction dry-discharge system for tailings；The invention further relates to A kind of micro-size fraction tailing dry-type emission technology, belongs to ore pulp processing technology field.

Background technology

By the end of the end of the year 2013, China's mine tailing accumulation volume of cargo in storage is up to 14,600,000,000 tons.China's mine tailing yield 16.49 in 2013 Hundred million tons, increase by 1.73% on a year-on-year basis.Handled more than the mine tailing in large-scale regular mine by the way of Tailings Dam storage, to environmental protection extremely not Profit, potential safety hazard is big, takes a large amount of arable lands, and recycling water utilization rate is low, and Tailings Dam maintenance cost is high.Current ore resource generally has Poor, thin, miscellaneous the features such as, the i.e. grade of ore, are low, disseminated grain size is thin, complicated occurrence state, it is therefore desirable to which pulverizing and jevigating sorts ability High-grade concentrate is obtained, while producing substantial amounts of aqueous micro-size fraction mine tailing after ore dressing.

In current tailing dry-type emission technology, for micro-size fraction mine tailing, frequently with the work that concentrator and filter press are combined Skill.Thickening machine main will be made up of upper box body and bottom cone, be contained in upper box body on tilting swash plate group, swash plate group There is the overflow launder of insertion side.Underflow after mine tailing is concentrated through concentrator is dehydrated into filter press, and the mineral aggregate after dehydration is formed The filter cake of water content 10 ~ 23% transports to tailing heap, and the water of filter press abjection returns to reuse together with the overflow water of concentrator.

Because of subparticle, sinking speed is very slow in gravitational field, and the concentrator for arranging operation for micro-size fraction tailing dry needs Very long sedimentation time, production efficiency is very low, and concentrated effect is poor, causes floor space big, and cost of investment is high.In order to improve production Efficiency, need to set more swash plates.Yielding, aging of swash plate etc. in use, overflow easily run it is thick, need sometimes multistage handle or With appropriate amount selective flocculant, environmental pollution is aggravated, factory's backwater reuse is selected in influence.

The content of the invention

The primary and foremost purpose of the present invention is that overcoming problems of the prior art, there is provided a kind of micro-size fraction tailing dry Heat-extraction system, floor space is small, and without flocculant, dewatering efficiency is high.

For solve above technical problem, a kind of micro-size fraction dry-discharge system for tailings of the invention, including filter press, every slag Sieve, agitator tank, Pulp pump, filter and disk type dehydrator, micro-size fraction mine tailing with it is described every slag sieve entrance be connected, it is described every The screenings outlet of slag sieve is connected with the entrance of the agitator tank, the outlet of the agitator tank and the entrance phase of the Pulp pump Even, the outlet of the Pulp pump is connected with the entrance of the filter, outlet and the disk type dehydrator of the filter Charging aperture is connected, and the case sand setting outlet of the disk type dehydrator is connected with the charging aperture of the filter press, the disc type dehydration The case overflow outlet of machine is connected with water return pipeline jointly with the press filtration clear water output of the filter press.

Relative to prior art, the present invention achieves following beneficial effect：Micro-size fraction mine tailing is weeded out into 0.5mm every slag Except big slag；Remove the mine tailing after big slag to enter temporary in agitator tank and stir evenly, being pumped into 0.8mm filters by slurry after stirring evenly enters Row filtering impurity elimination；Mine tailing after impurity elimination enters disk type dehydrator and carries out concentration operation, obtains concentration ore pulp and dewaterer overflow water； Concentration ore pulp is dehydrated into filter press, and the filter cake of the mineral aggregate formation water content 10 ~ 23% after dehydration is transported to tailing heap and stored up, The clear water of filter press abjection is with dewaterer overflow water together as backwater reuse.Compared with using traditional concentrator concentration, this The disk type dehydrator floor space of invention is small, and production efficiency is high, invests low, thickening efficiency is high, substantially increases dewatering efficiency, nothing Multi-stage series or parallel connection need to be used, without addition flocculant, reagent cost is reduced and advantageously reduces pollution to environment, no The composition of flocculant can be brought into influences mineral processing index in backwater.Micro-size fraction dry-discharge system for tailings of the present invention, technological process letter Single reliable, unit area disposal ability is big, and same treatment amount floor space is only 1/18 of concentrator or so, realizes mine tailing Rapid concentration operation, operational efficiency is high.The concentrated operation concentration ratio of Tailings Slurry concentrates the overflow water Solid content of operation up to 3 ~ 6< 0.15%, wherein Solid content particle diameter<1.5μm.

As the improvement of the present invention, the disk type dehydrator includes rotary drum case and the rotary drum group positioned at rotary drum case inner chamber Part, sand setting case of the rotary drum case by superposed water outlet case and positioned at bottom, which surrounds, to be formed, the water outlet case Top in fornix shape and top center by water outlet case top closure, the periphery bottom of the water outlet case is provided with case overflow Outlet, the periphery bottom of the sand setting case is exported provided with the case sand setting；The center of the water outlet case top cover is plugged with Feed pipe, the axis of the lower end edge drum assembly of the feed pipe is inserted into the inner chamber bottom of drum assembly；The drum assembly Mid diameter maximum be evenly distributed with the outlet of multiple rotary drum sand settings, the rotary drum sand setting outlet is exported with the case sand setting It is connected by runner；Multiple rotary drum clear water outputs are evenly distributed with the top circumference of the drum assembly, the rotary drum is clear Water out is connected with case overflow outlet by runner；The bottom centre of the drum assembly is fixed on turning for main motor Sub- axle upper end, the main motor is fixed on the inner chamber of base, and the upper port of the base and the lower end of the sand setting case are fixed Connection.When 1. working, rotation produces very big centrifugal force, rotary drum case and charging to drum assembly at a high speed under the driving of main motor Pipe transfixion, material is entered the inner chamber bottom of drum assembly by feed pipe, under the influence of centrifugal force, into drum assembly Runner is carried out after rotating separation, and clear water reaches water outlet case after the rotary drum clear water output discharge on drum assembly top through runner The case overflow of periphery bottom is exported and discharged；Particulate matter exports discharge from the rotary drum sand setting of drum assembly mid diameter maximum Afterwards, the case sand setting for reaching sand setting case periphery bottom through runner is exported and discharged, and so realizes point of clear water and particulate matter From.2. dewaterer itself of the invention contains power source, and drum assembly rotates at a high speed, produces powerful centrifugal force field, Neng Goujia The sedimentation separation of fast microfine, production efficiency is high, and dehydration precision is high, and treating capacity is big.3. dewaterer floor space of the invention is small, The cost such as equipment investment and capital construction stringing is low.4. main motor is built-in and directly drives drum assembly, greatlys save drive disk assembly, Make equipment compacter, greatly reduce the gross weight and appearance and size of equipment, be easy to whole Transporting and lifting, saved manufacture Cost.5. the entirety for forming a closing is sequentially stacked by base, sand setting case and water outlet case outside dewaterer of the invention, There is no any rotary part external, security is good, and profile is succinctly attractive in appearance.6. drum assembly of the invention and main motor coaxial line, The overall axisymmetricly state of rotation portion, is conducive to equipment to keep dynamic balancing, the force-bearing situation of bearing portion when high speed rotates Good, service life is long.7. compared with using traditional lamella thickener dehydration, disk type dehydrator floor space of the invention is small, Production efficiency is high, invests low, dehydration is thorough, simplifies dewatering process flow, substantially increases the rate of recovery of purpose metal, without using Multistage is dehydrated, without addition flocculant, is reduced reagent cost and is advantageously reduced pollution to environment.

As a further improvement on the present invention, the inner chamber of the water outlet case is provided with water outlet inner casing, the water outlet inner casing bag Network is connected with inner casing apical ring at the top of the water outlet inner casing, the inner casing apical ring is located in the upper periphery of the drum assembly The lower outer of the rotary drum clear water output；Mutually interconnected by clear water discharge-ring between the water outlet inner casing and the water outlet case Connect, the clear water discharge-ring rounds and minimum position and the case overflow along the chuck of the water outlet case in the shape of a spiral Outlet docking；The inner chamber of the sand setting case is provided with sand setting inner casing, and the sand setting inner casing envelope is in the bottom of the drum assembly Periphery, the top of the sand setting inner casing is located on the inside of the lower section that the rotary drum sand setting is exported, the sand setting inner casing and the sand setting It is connected with each other between case by sand setting discharge-ring, the sand setting discharge-ring is surround along the chuck of the sand setting case in the shape of a spiral One week and minimum position are docked with case sand setting outlet.When dewaterer is in running order, drum assembly rotates at a high speed, Clear water outwards flies out under huge centrifugal action after the rotary drum clear water output discharge on drum assembly top, crosses inner casing top The endoporus of ring, into the chuck between water outlet case and water outlet inner casing, falls on clear water discharge-ring, is rotated along clear water discharge-ring Descending, the minimum position of clear water discharge-ring is docked with case overflow outlet, and clear water is discharged.Particulate matter is in the middle part of drum assembly After rotary drum sand setting outlet discharge, outwards flown out under huge centrifugal action, the folder between sand setting case and sand setting inner casing In set, fall on sand setting discharge-ring, descending, minimum position and the outlet of case sand setting of sand setting discharge-ring are rotated along sand setting discharge-ring Docking, particulate matter is discharged.When dewaterer needs cleaning, stop material supply, clear water enters from feed pipe, and drum assembly is protected Hold spin for some time at high speeds, clear water is washed to the inner chamber of material flow path and drum assembly, then clear water from Rotary drum clear water output and the outlet of rotary drum sand setting fly out, and respectively clean up clear water discharge-ring and sand setting discharge-ring, clear water discharge Ring and sand setting discharge-ring whole process are easily cleaned without dead angle.Then the rotating speed of drum assembly is reduced, centrifugal force diminishes, The water outlet of rotary drum clear water output is fallen from the endoporus of inner casing apical ring, is flowed along the outer wall of drum assembly, from top to bottom to rotary drum group The outer wall of part is cleaned.The top of sand setting inner casing is located on the inside of the lower section at drum assembly maximum gauge, falls rinse water On sand setting discharge-ring.

As a further improvement on the present invention, depression forms up-small and down-big to the bottom center region of the drum assembly upwards And be the rotary drum cavity in isosceles trapezoid section, rotary drum fan is installed, the rotary drum fan is high in center in the rotary drum cavity The low taper in periphery, the center of the rotary drum fan is fixed on the armature spindle of the main motor；The inner chamber of the base is provided with With the base inner casing of base coaxial line, it is connected with each other by base gusset between the internal perisporium of the base inner casing and base, institute The upper end cover for stating main motor stretches out the periphery of motor body and is fixedly connected in the upper port of the base inner casing, described Main motor upper end cover is evenly distributed with the circumference of outer rim in lid air vent on multiple motors, the lower circumference of the base It is respectively equipped with the fresh air inlet that multiple inner chambers with the base inner casing are communicated；The highest position of the sand setting discharge-ring is less than described The upper limb of sand setting inner casing；The lower section of the rotary drum fan is provided with drip tray, and the drip tray is in low inside and high outside taper, described to connect The inner edge of water pond is provided with the flanging being folded upward at, and the flanging is embedded in the annular groove of the rotary drum fan lower surface, described The periphery of drip tray is provided with the annular deep gouge to lower recess, and the middle part of the sand setting inner casing short transverse is provided with spilled water hole, described Spilled water hole is communicated with the bottom of the annular deep gouge, and the axis of the spilled water hole is located at same with the axis that the case sand setting is exported In one perpendicular.Because main motor is underlying, main motor region can not have water droplet entrance, when drum assembly is in main motor When the lower high speed of driving rotates, under the action of the centrifugal force, current outwards fly out；Rotary drum fan is also high with the armature spindle of main motor simultaneously Speed rotation, air-flow enters the inner chamber of base inner casing from the fresh air inlet of base lower circumference, then lid air vent enters master from motor The superjacent air space of motor, in the presence of rotary drum fan, blows out upwards from the gap between base inner casing top and drum assembly, Water droplet is prevented to fall from there.When equipment is in cleaning state, rinse water falls on sand setting discharge-ring, and a small amount of water droplet can be suitable The outer wall for drum assembly flows downward to the lowest part of drum assembly, then drops down onto on drip tray down, because drip tray is in interior High outer low taper and inner edge are provided with the flanging being folded upward at, and all water droplets can be outwardly into annular deep gouge, then out of sand setting Spilled water hole on shell falls to sand setting discharge-ring.The water of annular deep gouge is highly enough to ensure that the mobilization dynamic to spilled water hole, will not Drip tray is set to produce overflow.The sand setting discharge-ring in case sand setting exit is in extreme lower position, and spilled water hole is located at herein can be with Sand setting discharge-ring keeps maximum drop, it is to avoid the annular deep gouge of current direction on sand setting discharge-ring pours in down a chimney.

As a further improvement on the present invention, the drum assembly includes rotary drum body, and the rotary drum body is up and down two The end cydariform that diameter is small, middle part diameter is big；The inner chamber of the rotary drum body is provided with the swash plate branch with rotary drum body coaxial line Frame, the center of the swash plate support is provided with up-small and down-big conically shaped, and the lower end of the feed pipe is inserted into the conically shaped Inner chamber bottom；The bottom periphery of the conically shaped is connected with up-small and down-big conical floor, the lower edge support of the conical floor On the inwall of the rotary drum body, charging is left between the bottom of the lower section of the conical floor and the rotary drum body empty Between；Radial be uniformly provided between the outer gusset of a plurality of conically shaped, the outer gusset of adjacent two conically shaped of the outer wall of the conically shaped is divided Circulation road Xing Cheng not be gone up, the upper end of the upper circulation road is communicated with the corresponding rotary drum clear water output respectively；The conical bottom Multiple up-small and down-big and shape size identical taper swash plate is sequentially stacked above disk, the upper surface of each taper swash plate is provided with Multiple tracks is radial to be uniformly distributed and highly equal fin, and the fin is corresponded and is located at the outer gusset of the conically shaped In identical phase, the inner periphery of each taper swash plate is fixed on outside the conically shaped on gusset by keyway；It is convex described in adjacent two Swash plate through hole is respectively equipped between the lower end of rib, each swash plate through hole is distributed on same circumference；The bottom of the conical floor Circumference is provided with multiple chassis through holes, and the chassis through hole is corresponded and is mutually communicated with the swash plate through hole；The cone of top layer Swash plate gland is pressed with above shape swash plate, the periphery of the swash plate gland is fixed in the upper port of the rotary drum body, it is described oblique The centre of disk gland is protruded upward outside the inner casing apical ring, and the upper port of the swash plate gland is provided with overflow outlet cap, The centre of the overflow outlet cap is higher than lower circumference, and the lower circumference of the overflow outlet cap is fixed on the swash plate pressure In the upper port of lid, each rotary drum clear water output is located in the lower circumference of the overflow outlet cap and is horizontally directed to outside. The horn mouth of conically shaped lower end plays a part of spreading material, and the conical floor of conically shaped bottom periphery plays support taper swash plate Effect, conical floor and swash plate gland are common to carry out axially position to taper swash plate heap, and the outer gusset of each conically shaped is oblique to taper Pan Dui carries out centralized positioning and carries out radial positioning by key；Material from feed pipe outflow after reach conically shaped bottom, from Enter the underlying space of conical floor in the presence of mental and physical efforts, be then up through each chassis through hole and swash plate through hole, two tapers are oblique Settlement space is formed between disk, particulate matter is deposited in the lower surface of each taper swash plate because particle diameter is larger, and in centrifugation masterpiece Flowed with the lower big end to taper swash plate, then depart from taper swash plate and export outflow from each rotary drum sand setting；Clear water due to particle diameter compared with Gap between the small swash plate along taper is flowed up to overflow from the upper circulation road between gusset outside each conically shaped, finally from Each rotary drum clear water output outflow on overflow outlet cap circumference.The fin of each taper swash plate upper surface makes holding between taper swash plate Equal distance, while the space between taper swash plate is divided into some deciles, it is each upper between gusset outside conically shaped Circulation road correspondence is connected；Swash plate heap is constituted because drum assembly is superimposed using multiple relatively thin taper swash plates, greatly Settling area is added, yield is improved；Simultaneously because the high speed rotation of drum assembly, centrifugation and row beneficial to particulate matter Go out, greatly improve dewatering efficiency.

As a further improvement on the present invention, overflow is passed through between the centre of the overflow outlet cap and lower circumference The outlet cap conical surface is connected as a single entity, and multiple jet orifices are evenly distributed with the overflow outlet cap conical surface；The water outlet case top cover At least provided with a visor on upper circumference corresponding with jet orifice sensing position.Material enters conically shaped bottom from feed pipe Afterwards, under the action of the centrifugal force to the flowing underneath of conical floor；But if the feed rate of feed pipe is excessive, exceeded disc type The disposal ability of dewaterer, material will choke upwards along conically shaped, be sprayed upwards from the jet orifice on the overflow outlet cap conical surface, It is mapped on visor, operating personnel can suitably reduce feed rate with slave unit external observation to this phenomenon, so as to can both protect Card dewaterer is worked under larger flow, and flow excess load can be avoided again.

As a further improvement on the present invention, the armature spindle upper end of the main motor is connected with up-small and down-big deflection cone, The lower surface of the deflection cone is pressed on the bottom wall of the rotary drum body；Under the inner chamber of the conically shaped and the conical floor The radial multiple tracks charging shunting gusset that is uniformly provided with is by taper tube inner chamber and the underlying space of the conical floor in side space It is separated into multiple independent charging runners；The charging shunting gusset is corresponded and positioned at identical with the outer gusset of the conically shaped Phase on, it is each it is described charging runner lower end respectively with the swash plate through hole correspond connects；The taper of bottom is oblique Lower disc is provided between disk and the conical floor, upper pad is provided between the taper swash plate and the swash plate gland of top layer The disc through hole for corresponding and being mutually communicated with the swash plate through hole is respectively equipped with disk, the circumference of the lower disc.Water conservancy diversion Cone can reduce material to resistance during conical floor flowing underneath, charging shunting gusset, the fin on taper swash plate and taper Material flow path is divided into multiple units by the outer gusset of cylinder, is made separate between each unit, it is to avoid the disorder in flow field.Upper disc and The upper and lower surface of lower disc can be parallel to each other, can also be in a certain angle, change the upper disc and lower disc of different angles, can To change the drift angle of taper swash plate, to better adapt to different mineral, the versatility of dewaterer is substantially increased, reduces and sets Standby investment.

As a further improvement on the present invention, provided with excessive between the upper port of the overflow outlet cap and the swash plate gland Stream regulation plate, gap is left between the inner periphery of the overflow regulation plate and the outer wall of the conically shaped.Overflow regulation is inserted Plate determines the uninterrupted of clear water to the insertion depth of overflow ducts, it is to avoid overflow flow velocity causes dehydration insufficient very much soon, more Change various sizes of overflow regulation plate, it is possible to better adapt to different mineral, substantially increase the versatility of dewaterer, Reduce equipment investment.

As a further improvement on the present invention, sand setting nozzle, the sand setting are separately installed with the rotary drum sand setting outlet The inner termination of nozzle is embedded with anti-wearing liner, the inner face of the anti-wearing liner and is respectively equipped with bushing annular groove respectively.By In particulate matter to the abrasion of sand setting nozzle than larger, the inner termination of sand setting nozzle sets anti-wearing liner to extend sand setting nozzle Service life；In use, product has expired ore pulp material to equipment in bushing annular groove, and ore pulp deposit is first subject to particulate matter Impact, is formd the situation that thing is ground with thing, further extends the service life of sand setting nozzle.

As a further improvement on the present invention, the bottom cylindrical week of the rotary drum body is provided with rotary drum body counterweight tank, The middle part outer step of the swash plate gland is provided with gland counterweight tank, the rotary drum body counterweight tank and the gland counterweight tank point Not with the rotary drum body coaxial line, and it is T-slot.Balancing weight is embedded in rotary drum body counterweight tank and gland counterweight tank, The dynamic balancing of rotary drum body can be easily adjusted, reduces the vibration of dewaterer at work, the service life of extension device.

It is a further object of the invention to provide a kind of micro-size fraction tailing dry-type emission technology, floor space is small, investment Low, dewatering efficiency is high.

To solve above technical problem, micro-size fraction tailing dry-type emission technology of the invention in turn includes the following steps：(1) it is micro- Fine fraction mine tailing is weeded out except big slag into 0.5mm every slag；(2) the mine tailing after big slag is removed into after stirring evenly in agitator tank by slurry It is pumped into 0.8mm filters and carries out filtering impurity elimination；(3) the mine tailing after impurity elimination enters disk type dehydrator progress concentration operation, obtains dense Contracting ore pulp and dewaterer overflow water；(4) the concentration ore pulp is dehydrated into filter press, and water content 10 ~ 23% is formed after dehydration Filter cake transport to tailing heap and store up, the clear water of filter press abjection is with dewaterer overflow water together as backwater reuse.

Relative to prior art, the present invention achieves following beneficial effect：Compared with using traditional concentrator concentration, this The disk type dehydrator floor space of invention is small, and production efficiency is high, invests low, substantially increases dewatering efficiency, and thickening efficiency is high, It need not add flocculant, reduce reagent cost and advantageously reduce pollution to environment, the composition of flocculant will not be brought into back Mineral processing index is influenceed in water.Micro-size fraction tailing dry-type emission technology of the present invention is simple and reliable, and unit area disposal ability is big, mutually exists together Reason amount floor space is only 1/18 of concentrator or so, realizes the rapid concentration operation of mine tailing, and operational efficiency is high.Tailings Slurry is passed through Operation concentration ratio is concentrated up to 3 ~ 6, the overflow water Solid content of operation is concentrated<0.15%, wherein Solid content particle diameter<1.5μm.

Brief description of the drawings

The present invention is further detailed explanation with reference to the accompanying drawings and detailed description, accompanying drawing only provide with reference to Illustrate to use, be not used to the limitation present invention.

Fig. 1 is the flow chart of micro-size fraction dry-discharge system for tailings of the present invention.

Fig. 2 is the front view of disk type dehydrator in the present invention.

Fig. 3 is Fig. 2 top view.

Fig. 4 is Fig. 2 left view.

Fig. 5 is the sectional view in Fig. 3 along A-A.

Fig. 6 is the enlarged drawing at B positions in Fig. 5.

Fig. 7 is the stereogram of disk type dehydrator in the present invention.

Fig. 8 is the runner schematic diagram of the overflow discharging ring of disk type dehydrator.

Fig. 9 is the three-dimensional exploded view of disk type dehydrator in the present invention.

Figure 10 is the three-dimensional exploded view of drum assembly.

Figure 11 is the control principle drawing of disk type dehydrator of the present invention.

In figure：S1. sieved every slag；T1. agitator tank；B1. Pulp pump；L1. filter；D1. disk type dehydrator；Y1. filter press； G1. water return pipeline；1. base；1a. base inner casings；1b. base gussets；1c. fresh air inlets；2. main motor；2a. armature spindles；2b. is led Flow cone；Lid air vent on 2c. motors；3. drip tray；3a. annular deep gouges；4. rotary drum fan；5. rotary drum body；5a. rotary drum underflows Mouthful；5b. underflow nozzles；5b1. anti-wearing liner；5b2. bushing annular grooves；5c. rotary drum body counterweight tanks；6. conically shaped；6a. is bored The outer gusset of shape cylinder；6b. charging shunting gussets；7. conical floor；8. lower disc；9. taper swash plate；9a. swash plate through holes；10. on pad Disk；11. swash plate gland；11a. gland counterweight tanks；12. overflow outlet cap；12a. rotary drum overfalls；12b. jet orifices；12c. overflows Stream regulation plate；13. feed pipe；13a. feed pipe flinger rings；14. overflow case；14a. overflow case top covers；14b. cases overflow Flow export；15. overflow inner casing；15a. inner casing apical rings；16. overflow discharging ring；17. visor；18. underflow case；18a. cases sink Sand is exported；19. underflow inner casing；19a. spilled water holes；20. underflow discharging ring；21. terminal box；SA1. safety relay；SB1. jerk Button；SB2. stop button；SB3. start button；SB4. SR；SW1. safety door protects switch；SW2. pulse signal detection Switch；SW3. vibration signal detection switch；PTC1. temperature signal detection switch；CM1. main motor control relay；KT1. first The time relay；KT2. second time relay；KT3. the 3rd time relay；LP1. signal lamp；F1. fuse one； F2. fuse two；F3. fuse three；Q1. electrothermal relay.

Embodiment

As shown in figure 1, the present invention micro-size fraction dry-discharge system for tailings include filter press Y1, every slag sieve S1, agitator tank T1, Pulp pump B1, filter L1 and disk type dehydrator D1, micro-size fraction mine tailing are connected with sieving S1 entrance every slag, and S1 sieve is sieved every slag Lower thing outlet is connected with agitator tank T1 entrance, and agitator tank T1 outlet is connected with Pulp pump B1 entrance, and Pulp pump B1's goes out Mouth is connected with filter L1 entrance, and filter L1 outlet is connected with disk type dehydrator D1 charging aperture, disk type dehydrator D1 The outlet of case sand setting be connected with filter press Y1 charging aperture, disk type dehydrator D1 case overflow outlet and filter press Y1 pressure Filtering water out is connected with water return pipeline G1 jointly.

Micro-size fraction mine tailing enters 0.5mm and removes big slag every slag sieve S1；The mine tailing after big slag is removed to enter in agitator tank T1 Keep in and stir evenly, sending into 0.8mm filters L1 by Pulp pump B1 after stirring evenly carries out filtering impurity elimination；Mine tailing after impurity elimination enters disc type Dewaterer D1 carries out concentration operation, obtains concentration ore pulp and dewaterer overflow water；Concentration ore pulp is dehydrated into filter press Y1, The filter cake of mineral aggregate formation water content 10 ~ 23% after dehydration is transported to tailing heap and stored up, and clear water and the dewaterer of filter press Y1 abjections overflow Flowing water is together as backwater reuse.

As shown in Fig. 2 to Figure 10, disk type dehydrator D1 of the invention includes rotary drum case and positioned at rotary drum case inner chamber Drum assembly, sand setting case 18 of the rotary drum case by superposed water outlet case 14 and positioned at bottom, which surrounds, to be formed, water cover The top of shell 14 is closed in fornix shape and top center by water outlet case top cover 14a, and the periphery bottom of water outlet case 14 is provided with cover Shell overflow exports 14b, and the periphery bottom of sand setting case 18 exports 18a provided with case sand setting；Insert at water outlet case top cover 14a center Feed pipe 13 is connected to, the axis of the lower end edge drum assembly of feed pipe 13 is inserted into the inner chamber bottom of drum assembly；Drum assembly Mid diameter maximum be evenly distributed with multiple rotary drum sand settings outlet 5a, rotary drum sand setting outlet 5a exports 18a with case sand setting It is connected by runner；Multiple rotary drum clear water output 12a, rotary drum clear water output are evenly distributed with the top circumference of drum assembly 12a is connected with case overflow outlet 14b by runner；The bottom centre of drum assembly is fixed on the armature spindle 2a of main motor 2 Upper end, main motor 2 is fixed on the inner chamber of base 1, and the upper port of base 1 is fixedly connected with the lower end of sand setting case 18, base 1 Periphery is provided with terminal box 21.

The inner chamber of water outlet case 14 is provided with water outlet inner casing 15, and the envelope of water outlet inner casing 15 goes out in the upper periphery of drum assembly The top of water inner casing 15 is connected with inner casing apical ring 15a, and inner casing apical ring 15a is located at rotary drum clear water output 12a lower outer；Water outlet It is connected with each other between inner casing 15 and water outlet case 14 by clear water discharge-ring 16, clear water discharge-ring 16 is in the shape of a spiral along water outlet case 14 chuck is rounded and minimum position is docked with case overflow outlet 14b；The inner chamber of sand setting case 18 is provided with sand setting inner casing 19, the envelope of sand setting inner casing 19 is in the lower, outer perimeter of drum assembly, and the top of sand setting inner casing 19 is located under rotary drum sand setting outlet 5a Side inner side, is connected with each other, sand setting discharge-ring 20 is helically between sand setting inner casing 19 and sand setting case 18 by sand setting discharge-ring 20 Chuck of the shape along sand setting case 18 is rounded and minimum position is docked with case sand setting outlet 18a.

During work, with 2800 ~ 3300rpm, rotation produces very big centrifugation to drum assembly at a high speed under the driving of main motor 2 Power, rotary drum case and the transfixion of feed pipe 13, material are entered the inner chamber bottom of drum assembly by feed pipe 13, in centrifugal force Under effect, the runner into drum assembly is carried out after rotating separation, and clear water is arranged from the rotary drum clear water output 12a on drum assembly top After going out, the case overflow for reaching the periphery bottom of water outlet case 14 through runner exports 14b and discharged；Particulate matter is in the middle part of drum assembly After the rotary drum sand setting outlet 5a discharges of diameter maximum, the case sand setting for reaching the periphery bottom of sand setting case 18 through runner is exported 18a is simultaneously discharged, and so realizes the separation of clear water and particulate matter.

When dewaterer is in running order, drum assembly rotates at a high speed, rotary drum clear water of the clear water from drum assembly top Export after 12a discharges, outwards flown out under huge centrifugal action, cross inner casing apical ring 15a endoporus, into water outlet case 14 In chuck between water outlet inner casing 15, fall on clear water discharge-ring 16, descending, clear water discharge-ring is rotated along clear water discharge-ring 16 16 minimum position is docked with case overflow outlet 14b, and clear water is discharged.Rotary drum sand setting of the particulate matter in the middle part of drum assembly goes out After mouth 5a discharges, outwards flown out under huge centrifugal action, into the chuck between sand setting case 18 and sand setting inner casing 19, Fall on sand setting discharge-ring 20, rotated along sand setting discharge-ring 20 descending, minimum position and the case sand setting of sand setting discharge-ring 20 go out Mouth 18a docking, particulate matter is discharged.

When dewaterer needs cleaning, stop material supply, clear water enters from feed pipe 13, and drum assembly is maintained at a high speed Spin for some time under state, clear water is washed to the inner chamber of material flow path and drum assembly, and then clear water is from rotary drum clear water Outlet 12a and rotary drum sand setting outlet 5a fly out, and respectively clean up clear water discharge-ring 16 and sand setting discharge-ring 20.Then reduce The rotating speed of drum assembly, centrifugal force diminishes, and rotary drum clear water output 12a water outlet is fallen from inner casing apical ring 15a endoporus, along rotary drum The outer wall flowing of component, is cleaned to the outer wall of drum assembly from top to bottom.The top of sand setting inner casing 19 is located at drum assembly On the inside of lower section at maximum gauge, rinse water is set to fall on sand setting discharge-ring 20.

Depression forms rotary drum cavity up-small and down-big and for isosceles trapezoid section to the bottom center region of drum assembly upwards, Rotary drum fan 4 is installed, rotary drum fan 4 is in the low taper in the high periphery in center, and the center of rotary drum fan 4 is fixed in rotary drum cavity On the armature spindle 2a of main motor 2；The inner chamber of base 1 is provided with base inner casing 1a, base inner casing 1a and base 1 with base coaxial line Internal perisporium between be connected with each other by base gusset 1b, the upper end cover of main motor 2 stretches out the periphery of motor body and solid Surely in the upper port for being connected to base inner casing 1a, the upper end cover of main motor 2 is evenly distributed with multiple motors on the circumference of outer rim The fresh air inlet 1c that multiple inner chambers with base inner casing 1a are communicated is respectively equipped with upper lid air vent 2c, the lower circumference of base 1；It is heavy The highest position of sand discharge-ring 20 is less than the upper limb of sand setting inner casing 19.

The lower section of rotary drum fan 4 is provided with drip tray 3, and drip tray 3 is in low inside and high outside taper, and the inner edge of drip tray 3 is provided with In the flanging being folded upward at, the annular groove of the lower surface of flanging insertion rotary drum fan 4, the periphery of drip tray 3 is provided with to lower recess Annular deep gouge 3a, the middle part of the short transverse of sand setting inner casing 19 is provided with spilled water hole 19a, spilled water hole 19a and annular deep gouge 3a bottom Portion is communicated, and spilled water hole 19a axis and case sand setting export 18a axis in same perpendicular.

Because main motor 2 is underlying, the region of main motor 2 can not have water droplet entrance, when drum assembly drives in main motor 2 During lower high speed rotation, under the action of the centrifugal force, current outwards fly out；Rotary drum fan 4 is also high with the armature spindle 2a of main motor 2 simultaneously Speed rotation, air-flow enters base inner casing 1a inner chamber, then the lid air vent 2c from motor from the fresh air inlet 1c of the lower circumference of base 1 Into the superjacent air space of main motor 2, in the presence of rotary drum fan 4, between base inner casing 1a tops and drum assembly Gap is blown out upwards, prevents water droplet from falling from there.

When equipment is in cleaning state, rinse water falls on sand setting discharge-ring 20, and a small amount of water droplet can be along rotary drum group The outer wall of part flows downward to the lowest part of drum assembly, then drops down onto on drip tray 3 down, because drip tray 3 is in low inside and high outside Taper and inner edge is provided with the flanging that is folded upward at, all water droplets can be outwardly into annular deep gouge 3a, then from sand setting inner casing 19 On spilled water hole 19a fall to sand setting discharge-ring 20.Annular deep gouge 3a water is highly enough to ensure that the flowing to spilled water hole 19a is moved Power, will not make drip tray 3 produce overflow.Sand setting discharge-ring 20 at case sand setting outlet 18a is in extreme lower position, spilled water hole 19a is located at the drop that can keep maximum with sand setting discharge-ring 20 herein, it is to avoid the current direction annular on sand setting discharge-ring 20 is heavy Groove 3a pours in down a chimney.

Drum assembly includes rotary drum body 5, and rotary drum body 5 is the cydariform that upper and lower ends diameter is small, middle part diameter is big； The inner chamber of rotary drum body 5 is provided with up-small and down-big cone provided with the swash plate support with rotary drum body coaxial line, the center of swash plate support Shape cylinder 6, the lower end of feed pipe 13 is inserted into the inner chamber bottom of conically shaped 6；The bottom periphery of conically shaped 6 is connected with up-small and down-big Conical floor 7, the lower edge of conical floor 7 is supported on the inwall of rotary drum body 5, lower section and the rotary drum body 5 of conical floor 7 Left between bottom into material space；The outer wall of conically shaped 6 is radial to be uniformly provided with the outer gusset 6a of a plurality of conically shaped, adjacent two cone Formed respectively between the outer gusset 6a of shape cylinder and go up circulation road, the upper end of upper circulation road respectively with corresponding rotary drum clear water output 12a phases It is logical.

The top of conical floor 7 has been sequentially stacked multiple up-small and down-big and shape size identical taper swash plate 9, each taper The upper surface of swash plate 9 is uniformly distributed and highly equal fin provided with multiple tracks is radial, fin and the outer gusset 6a mono- of conically shaped One is corresponded to and is located in identical phase, and the inner periphery of each taper swash plate 9 is fixed on outside conically shaped on gusset 6a by keyway；Phase Swash plate through hole 9a is respectively equipped between the lower end of adjacent two fins, each swash plate through hole 9a is distributed on same circumference；Conical floor 7 Lower circumference be provided with multiple chassis through holes, chassis through hole and swash plate through hole 9a one-to-one corresponding and be mutually communicated.

The top of taper swash plate 9 of top layer is pressed with swash plate gland 11, and the periphery of swash plate gland 11 is fixed on the upper of rotary drum body 5 On port, the centre of swash plate gland 11 is protruded upward outside inner casing apical ring 15a, and the upper port of swash plate gland 11 is provided with overflow Outlet cap 12, the centre of overflow outlet cap 12 is higher than lower circumference, and the lower circumference of overflow outlet cap 12 is fixed on swash plate In the upper port of gland 11, each rotary drum clear water output 12a is located in the lower circumference of overflow outlet cap 12 and is horizontally directed to outside. The taper swash plate 9 of multiple superposed is reduced to swash plate heap in Fig. 9.

The horn mouth of the lower end of conically shaped 6 plays a part of spreading material, and the conical floor 7 of the bottom periphery of conically shaped 6 is played The effect of taper swash plate 9 is supported, conical floor 7 and swash plate gland 11 are common to taper swash plate heap progress axially position, each taper The outer gusset 6a of cylinder carries out centralized positioning to taper swash plate heap and carries out radial positioning by key；Material from feed pipe 13 outflow after to Up to the bottom of conically shaped 6, under the influence of centrifugal force into the underlying space of conical floor 7, it is then up through each chassis and leads to Settlement space is formed between hole and swash plate through hole 9a, two taper swash plates 9, particulate matter is deposited in each taper swash plate because proportion is larger 9 upper surface, and flowed under the action of the centrifugal force to the big end of taper swash plate 9, then depart from taper swash plate 9 heavy from each rotary drum Sand outlet 5a outflows；Clear water because the small gap along between taper swash plate 9 of proportion is to overflow, from gusset 6a outside each conically shaped it Between upper circulation road flow up, finally from the circumference of overflow outlet cap 12 each rotary drum clear water output 12a outflow.

The fin of each upper surface of taper swash plate 9 makes to keep equal distance between taper swash plate 9, while by taper swash plate 9 Between space be divided into some deciles, each the upper circulation road between gusset 6a outside conically shaped it is corresponding connection；Due to rotary drum Component is superimposed using multiple relatively thin taper swash plates 9 and constitutes swash plate heap, significantly increases settling area, improves production Amount；Simultaneously because the high speed rotation of drum assembly, using the centrifugation and discharge of particulate matter, greatly improves dewatering efficiency.

It is connected as a single entity between the centre of overflow outlet cap 12 and lower circumference by the overflow outlet cap conical surface, overflow goes out Multiple jet orifice 12b are evenly distributed with the lid conical surface；It is corresponding with jet orifice 12b sensings position on water outlet case top cover 14a At least provided with a visor 17 on circumference.Material enters behind the bottom of conically shaped 6 from feed pipe 13, under the action of the centrifugal force to taper The flowing underneath on chassis 7；If the feed rate of feed pipe 13 is excessive, the disposal ability of disk type dehydrator is exceeded, material is just It can choke upwards along conically shaped 6, spray, be mapped on visor 17, operator upwards from the jet orifice 12b on the overflow outlet cap conical surface Member can suitably reduce feed rate with slave unit external observation to this phenomenon, so as to can both ensure dewaterer in larger stream Amount is lower to be worked, and flow excess load can be avoided again.

The armature spindle 2a upper ends of main motor 2 are connected with up-small and down-big deflection cone 2b, and deflection cone 2b lower surface, which is pressed in, to be turned On the bottom wall of drum body 5；It is radial in the inner chamber of conically shaped 6 and the underlying space of conical floor 7 to be uniformly provided with multiple tracks charging The underlying space of taper tube inner chamber and conical floor 7 is separated into multiple independent charging runners by shunting gusset 6b；Charging shunting Gusset 6b is corresponded and in identical phase with the outer gusset 6a of conically shaped, and the lower end of each charging runner is logical with swash plate respectively Hole 9a corresponds connection.Deflection cone 2b can reduce material to resistance during 7 flowing underneath of conical floor, charging shunting gusset Material flow path is divided into multiple units by 6b, the outer gusset 6a of the fin on taper swash plate 9 and conically shaped, is made between each unit mutually It is independent, it is to avoid the disorder in flow field.

Lower disc 8, taper swash plate 9 and the swash plate gland 11 of top layer are provided between the taper swash plate 9 and conical floor 7 of bottom Between be provided with upper disc 10, be respectively equipped with the circumference of lower disc 8 and disc that swash plate through hole 9a is corresponded and is mutually communicated Through hole.The upper and lower surface of upper disc 10 and lower disc 8 can be parallel to each other, can also be in a certain angle, change different angles Upper disc 10 and lower disc 8, thus it is possible to vary the drift angle of taper swash plate 9, to better adapt to different mineral, are substantially increased de- The versatility of water dispenser, reduces equipment investment.Under normal circumstances, the drift angle of dewaterer taper swash plate is 90 ° ~ 120 °, and spacing is 2 ~10mm。

Between the upper port of overflow outlet cap 12 and swash plate gland 11 plate 12c, overflow regulation plate are adjusted provided with overflow Gap is left between 12c inner periphery and the outer wall of conically shaped 6.Overflow adjusts insertion depths of the plate 12c to overflow ducts, certainly Determine the uninterrupted of clear water, it is to avoid overflow flow velocity causes dehydration insufficient very much soon, change various sizes of overflow regulation plate, Different mineral can be just better adapted to, the versatility of dewaterer is substantially increased, reduces equipment investment.

Sand setting nozzle 5b is separately installed with rotary drum sand setting outlet 5a, and sand setting nozzle 5b inner termination is embedded with wear-resisting respectively Bushing annular groove 5b2 is respectively equipped with bushing 5b1, anti-wearing liner 5b1 inner face.Because particulate matter is to sand setting nozzle 5b's Abrasion is than larger, and sand setting nozzle 5b inner termination sets anti-wearing liner 5b1 to extend sand setting nozzle 5b service life；Equipment In use, product has expired ore pulp material in bushing annular groove 5b2, and ore pulp deposit is first subject to the impact of particulate matter, is formed The situation of thing is ground with thing, sand setting nozzle 5b service life is further extended.

The bottom cylindrical week of rotary drum body 5 is provided with rotary drum body counterweight tank 5c, the middle part outer step of swash plate gland 11 Provided with gland counterweight tank 11a, rotary drum body counterweight tank 5c and gland counterweight tank 11a respectively with rotary drum body coaxial line, and be T Shape groove.Balancing weight is embedded in rotary drum body counterweight tank 5c and gland counterweight tank 11a, rotary drum body can be easily adjusted Dynamic balancing, reduces the vibration of dewaterer at work, the service life of extension device.

Safety door is installed at the adpting flange of water outlet case 14 and sand setting case 18 and protects switch SW1, once water outlet case 14 depart from sand setting case 18, and the normally closed interlock that safety door protects switch SW1 will be switched off.

Rotary drum case inner chamber and rotary drum sand setting export 5a just to position pulse signal detection switch SW2, rotary drum are installed Component rotates a circle, and pulse signal detection switch SW2 will be detected exports the equal numbers of pulses of 5a with rotary drum sand setting, works as part The outlet of rotary drum sand setting is blocked, and the umber of pulse that pulse signal detection switch SW2 is detected will be reduced, during less than setting number, Pulse signal detection switch SW2 normally open contact will be closed.

The bearing portion of main motor 2 is provided with the temperature signal detection switch PTC1 of detection main motor bearing temperature, temperature During more than setting value, temperature signal detection switch PTC1 normally open contact will turn on.

The upper end cover of main motor and the connecting portion of base are provided with the vibration signal detection switch of detection main motor vibration SW3, when main motor vibration is excessive, vibration signal detection switch SW3 normally open contact will turn on.

As shown in figure 11, the control system of disk type dehydrator of the present invention, including detection dewaterer main motor bearing temperature The temperature signal detection switch PTC1 and vibration signal detection switch SW3 of detection main motor vibration, in addition to detection dewaterer turn The pulse signal detection switch SW2 and safety relay SA1 of drum sand setting outlet jet, safety relay can be from Germany west The sub- 3TK28 safety relays of door.Pulse signal detection switch SW2 is connected to after being connected with very first time relay KT1 coil Between the live wire and zero line of control loop；Vibration signal detection switch SW3 connects after being connected with the second time relay KT2 coil It is connected between the live wire of control loop and zero line；Temperature signal detection switch PTC1 and the 3rd time relay KT3 coil string It is connected to after connection between the live wire of control loop and zero line；Safety relay SA1 power input A1 passes through the F1 of fuse one It is connected with the live wire of control loop, between power input A2 and zero line.

The sender end T1 and receiving terminal IN1 phase short circuits of the signal element of safety relay first, the second letter of safety relay The sender end T2 and receiving terminal IN2 phase short circuits of number unit；The sender end T3 and receiving terminal of 3rd signal element of safety relay The normally closed of very first time relay KT1, the second time relay KT2 and the 3rd time relay KT3 is in series between IN3 to touch Head.

The upper pile crown 41 of safety relay SA1 the first normally closed interlock passes through the F2 of fuse two and the live wire phase of control loop Even, the lower pile crown 42 of the first normally closed interlock of safety relay is connected after being connected with signal lamp LP1 with zero line.

The upper pile crown 43 of first normally open contact of safety relay is connected by the F3 of fuse three with the live wire of control loop, The lower pile crown 44 of first normally open contact is connected with the upper pile crown 23 of the second normally open contact, lower pile crown 24 and the urgency of the second normally open contact After the coil series connection for stopping button SB1, stop button SB2, start button SB3 and main motor control relay CM1, with zero line phase Even；The self-keeping contact CM1-1 of main motor control relay is connected in parallel on start button SB3 two ends.The reset letter of safety relay SR SB4 is in series between number unit 51/52.

Under normal circumstances, the receiving terminal IN1 of the first signal element receives what the sender end T1 of the first signal element was sent Voltage signal, while the voltage letter that the sender end T2 that the receiving terminal IN2 of secondary signal unit receives secondary signal unit is sent Number, then the first normally open contact of safety relay is closed.The receiving terminal IN3 of 3rd signal element receives the 3rd signal element The voltage signal that sender end T3 is sent then safety relay the second normally open contact closure.

First, second and third signal element is in conducting state, and the first normally closed interlock of safety relay disconnects, and signal refers to Show that lamp LP1 does not work.

Press after start button SB3, main motor control relay CM1 coil obtains electric, main motor starts, main motor control Self-keeping contact's CM1-1 adhesive self-insurances of relay.

When pulse signal detection, which switchs SW2, detects the umber of pulse weekly of rotary drum sand setting outlet less than setting number, arteries and veins Signal detection switch SW2 normally open contact closure is rushed, very first time relay KT1 coil obtains electric, very first time relay KT1 Normally closed interlock delay disconnect；When main motor vibration is excessive, vibration signal detection switch SW3 normally open contact is connected, and second Time relay KT2 coil obtains electric, and the second time relay KT2 normally closed interlock delay disconnects；When main motor bearing temperature During more than setting value, temperature signal detection switch PTC1 the 3rd time relay KT3 of normally open contact connection coil obtains electric, the Three time relay KT3 normally closed interlock delay disconnects；As long as the above-mentioned normally closed interlock of first, second and third time relay has one Individual to disconnect, then the receiving terminal IN3 of the 3rd signal element does not receive the voltage signal that the sender end T3 of the 3rd signal element is sent, Second normally open contact of safety relay disconnects, and main motor control relay CM1 coil losing electricity, main motor is out of service；Peace The first normally closed interlock closure of all relay, signal lamp LP1 is lighted, and sends signal.After failture evacuation, SR is pressed SB4, then safety relay reset.

Safety door is installed between disk type dehydrator D1 water outlet case and sand setting case and protects switch SW1, safety door is protected and opened The the first normally closed interlock SW1-1 closed is connected between the first signal element T1/IN1 of safety relay, and safety door protects switch Second normally closed interlock SW1-2 is connected between the secondary signal unit T2/IN2 of safety relay.When water outlet case and sand setting cover When shell is separated, the first normally closed interlock SW1-1 and the second normally closed interlock SW1-2 that safety door protects switch will be switched off, the first signal The receiving terminal IN1 of unit does not receive the voltage signal that the sender end T1 of the first signal element is sent, or secondary signal unit Receiving terminal IN2 do not receive the voltage signal that the sender end T2 of secondary signal unit is sent, then the first of safety relay is normal Open contact disconnects, and main motor is out of service, and synchronous signal indicator lamp LP1 is lighted.

Electrothermal relay Q1 normally closed interlock is also in series between 3rd signal element T3/IN3 of safety relay.When main electricity The load of machine is larger, when there is overcurrent, and electrothermal relay Q1 normally closed interlock disconnects, and can also make the signal list of safety relay the 3rd The receiving terminal IN3 of member does not receive the voltage signal that the sender end T3 of the 3rd signal element is sent, and the second of safety relay is normal Open contact disconnects, and main motor control relay CM1 coil losing electricity, main motor is out of service；The first of safety relay is normally closed Contact closure, signal lamp LP1 is lighted, and sends signal.

The micro-size fraction tailing dry-type emission technology of the present invention, in turn includes the following steps：(1) micro-size fraction mine tailing enters 0.5mm Big slag is removed every slag sieve S1；(2) remove the mine tailing after big slag and 0.8mm mistakes are sent into by Pulp pump B1 into after stirring evenly in agitator tank T1 Filter L1 carries out filtering impurity elimination；Mine tailing after impurity elimination enter disk type dehydrator D1 carry out concentration operation, obtain concentration ore pulp and Dewaterer overflow water；(4) the concentration ore pulp is dehydrated into filter press Y1, and the filter cake of water content 10 ~ 23% is formed after dehydration Transport to tailing heap to store up, the clear water and dewaterer overflow water of filter press Y1 abjections are together as backwater reuse.

It the foregoing is only the preferable possible embodiments of the present invention, non-therefore the limitation present invention patent protection model Enclose.In addition to the implementation, the present invention can also have the skill of other embodiment, all use equivalent substitutions or equivalent transformation formation Art scheme, all falls within the protection domain of application claims.Technical characteristic of the invention without description can be by or using now There is technology realization, will not be repeated here.

Claims (8)

1. a kind of micro-size fraction dry-discharge system for tailings, including filter press, it is characterised in that：Also include every slag sieve, agitator tank, slurry Pump, filter and disk type dehydrator, micro-size fraction mine tailing are connected with the entrance sieved every slag, and the screenings sieved every slag goes out Mouth is connected with the entrance of the agitator tank, and the outlet of the agitator tank is connected with the entrance of the Pulp pump, the Pulp pump Outlet is connected with the entrance of the filter, and the outlet of the filter is connected with the charging aperture of the disk type dehydrator, described The case sand setting outlet of disk type dehydrator is connected with the charging aperture of the filter press, the case overflow outlet of the disk type dehydrator It is connected jointly with water return pipeline with the press filtration clear water output of the filter press；The disk type dehydrator includes rotary drum case and is located at The drum assembly of rotary drum case inner chamber, sand setting case of the rotary drum case by superposed water outlet case and positioned at bottom is closed Enclose and form, the top of the water outlet case in fornix shape and top center by water outlet case top closure, the water outlet case Periphery bottom is exported provided with the case overflow, and the periphery bottom of the sand setting case is exported provided with the case sand setting；It is described The center of water outlet case top cover is plugged with feed pipe, and the axis of the lower end edge drum assembly of the feed pipe is inserted into drum assembly Inner chamber bottom；The mid diameter maximum of the drum assembly is evenly distributed with multiple rotary drum sand setting outlets, and the rotary drum sinks Sand is exported to be connected with case sand setting outlet by runner；It is evenly distributed with the top circumference of the drum assembly multiple Rotary drum clear water output, the rotary drum clear water output is connected with case overflow outlet by runner；The drum assembly Bottom centre is fixed on the armature spindle upper end of main motor, and the main motor is fixed on the inner chamber of base, the upper port of the base It is fixedly connected with the lower end of the sand setting case；The inner chamber of the water outlet case is provided with water outlet inner casing, the water outlet inner casing envelope Inner casing apical ring is connected with the top of the upper periphery of the drum assembly, the water outlet inner casing, the inner casing apical ring is located at institute State the lower outer of rotary drum clear water output；Mutually interconnected by clear water discharge-ring between the water outlet inner casing and the water outlet case Connect, the clear water discharge-ring rounds and minimum position and the case overflow along the chuck of the water outlet case in the shape of a spiral Outlet docking；The inner chamber of the sand setting case is provided with sand setting inner casing, and the sand setting inner casing envelope is in the bottom of the drum assembly Periphery, the top of the sand setting inner casing is located on the inside of the lower section that the rotary drum sand setting is exported, the sand setting inner casing and the sand setting It is connected with each other between case by sand setting discharge-ring, the sand setting discharge-ring is surround along the chuck of the sand setting case in the shape of a spiral One week and minimum position are docked with case sand setting outlet.

2. micro-size fraction dry-discharge system for tailings according to claim 1, it is characterised in that：In the bottom of the drum assembly Heart district domain, which is recessed to be formed in rotary drum cavity up-small and down-big and for isosceles trapezoid section, the rotary drum cavity upwards, is provided with rotary drum Fan, the rotary drum fan is fixed on turning for the main motor in the low taper in the high periphery in center, the center of the rotary drum fan On sub- axle；The inner chamber of the base provided with base inner casing with base coaxial line, the internal perisporium of the base inner casing and base it Between be connected with each other by base gusset, the upper end cover of the main motor stretches out the periphery of motor body and is fixedly connected on institute In the upper port for stating base inner casing, the main motor upper end cover, which is evenly distributed with the circumference of outer rim on multiple motors, covers logical The fresh air inlet that multiple inner chambers with the base inner casing are communicated is respectively equipped with air holes, the lower circumference of the base；It is described heavy The highest position of sand discharge-ring is less than the upper limb of the sand setting inner casing；The lower section of the rotary drum fan is provided with drip tray, described to connect Water pond is in low inside and high outside taper, and the inner edge of the drip tray is provided with the flanging being folded upward at, and the flanging is embedded in the rotary drum In the annular groove of fan lower surface, the periphery of the drip tray is provided with the annular deep gouge to lower recess, and the sand setting inner casing is high The middle part for spending direction is provided with spilled water hole, and the spilled water hole communicates with the bottom of the annular deep gouge, the axis of the spilled water hole and The axis of the case sand setting outlet is located in same perpendicular.

3. micro-size fraction dry-discharge system for tailings according to claim 1, it is characterised in that：The drum assembly includes rotary drum Body, the rotary drum body is the cydariform that upper and lower ends diameter is small, middle part diameter is big；The inner chamber of the rotary drum body is provided with With the swash plate support of rotary drum body coaxial line, the center of the swash plate support is provided with up-small and down-big conically shaped, the feed pipe Lower end be inserted into the inner chamber bottom of the conically shaped；The bottom periphery of the conically shaped is connected with up-small and down-big conical bottom Disk, the lower edge of the conical floor is supported on the inwall of the rotary drum body, the lower section of the conical floor and the rotary drum Left between the bottom of body into material space；The outer wall of the conically shaped is radial to be uniformly provided with the outer gusset of a plurality of conically shaped, Form upper circulation road between the outer gusset of adjacent two conically shaped respectively, the upper end of the upper circulation road respectively with the corresponding rotary drum Clear water output is communicated；It has been sequentially stacked multiple up-small and down-big above the conical floor and shape size identical taper is oblique Disk, the upper surface of each taper swash plate is uniformly distributed and highly equal fin provided with multiple tracks is radial, the fin with it is described The outer gusset of conically shaped is corresponded and in identical phase, the inner periphery of each taper swash plate is fixed on the cone by keyway On the outer gusset of shape cylinder；Swash plate through hole is respectively equipped between the lower end of fin described in adjacent two, each swash plate through hole is distributed in same On circumference；The lower circumference of the conical floor is provided with multiple chassis through holes, the chassis through hole and the swash plate through hole one One corresponds to and is mutually communicated；It is pressed with swash plate gland above the taper swash plate of top layer, the periphery of the swash plate gland is fixed on described In the upper port of rotary drum body, the centre of the swash plate gland is protruded upward outside the inner casing apical ring, the swash plate gland Upper port overflow outlet cap is installed, the centre of the overflow outlet cap is higher than lower circumference, the overflow outlet cap Lower circumference be fixed in the upper port of the swash plate gland, each rotary drum clear water output is located at the overflow outlet cap In lower circumference and be horizontally directed to outside.

4. micro-size fraction dry-discharge system for tailings according to claim 3, it is characterised in that：The center of the overflow outlet cap It is connected as a single entity, is evenly distributed with the overflow outlet cap conical surface many by the overflow outlet cap conical surface between position and lower circumference Individual jet orifice；At least provided with a visor on circumference corresponding with jet orifice sensing position on the water outlet case top cover.

5. micro-size fraction dry-discharge system for tailings according to claim 3, it is characterised in that：On the armature spindle of the main motor End is connected with up-small and down-big deflection cone, and the lower surface of the deflection cone is pressed on the bottom wall of the rotary drum body；The taper The radial multiple tracks charging shunting gusset that is uniformly provided with is by conically shaped in the inner chamber of cylinder and the underlying space of the conical floor Chamber and the underlying space of the conical floor are separated into multiple independent charging runners；The charging shunting gusset and the taper The outer gusset of cylinder is corresponded and in identical phase, each lower end for feeding runner respectively with the swash plate through hole one by one Correspondence connection；Between the taper swash plate of bottom and the conical floor be provided with lower disc, the taper swash plate of top layer with Upper disc is provided between the swash plate gland, be respectively equipped with the circumference of the lower disc corresponded with the swash plate through hole and The disc through hole being mutually communicated.

6. micro-size fraction dry-discharge system for tailings according to claim 3, it is characterised in that：The overflow outlet cap with it is described Plate is adjusted provided with overflow, the inner periphery of overflow regulation plate is outer with the conically shaped between the upper port of swash plate gland Gap is left between wall.

7. micro-size fraction dry-discharge system for tailings according to claim 3, it is characterised in that：Divide in the rotary drum sand setting outlet Sand setting nozzle is not installed, the inner termination of the sand setting nozzle is embedded with anti-wearing liner, the inner face of the anti-wearing liner respectively On be respectively equipped with bushing annular groove.

8. the micro-size fraction dry-discharge system for tailings any one of a kind of use claim 1 to 7 carries out the work of tailing dry row Skill, in turn includes the following steps：(1) micro-size fraction mine tailing is weeded out except big slag into 0.5mm every slag；(2) the mine tailing after big slag is removed 0.8mm filters are pumped into by slurry after being stirred evenly into agitator tank and carry out filtering impurity elimination；(3) the mine tailing after impurity elimination enters disc type Dewaterer carries out concentration operation, obtains concentration ore pulp and dewaterer overflow water；(4) the concentration ore pulp is taken off into filter press Water, the filter cake of formation water content 10 ~ 23% is transported to tailing heap and stored up after dehydration, the clear water and dewaterer overflow water of filter press abjection Together as backwater reuse.