CN102600656B - Novel high-performance belt pressure filter - Google Patents
Novel high-performance belt pressure filter Download PDFInfo
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- CN102600656B CN102600656B CN201210022863.XA CN201210022863A CN102600656B CN 102600656 B CN102600656 B CN 102600656B CN 201210022863 A CN201210022863 A CN 201210022863A CN 102600656 B CN102600656 B CN 102600656B
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- 239000000463 material Substances 0.000 claims abstract 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 4
- 230000001174 ascending effect Effects 0.000 claims abstract 2
- 238000001125 extrusion Methods 0.000 claims 4
- 230000005540 biological transmission Effects 0.000 claims 2
- 239000012790 adhesive layer Substances 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 239000003351 stiffener Substances 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
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Abstract
本发明涉及一种带式压滤机。其压滤区中主压力辊在水平面的垂直方向上、由低向高依次呈螺旋上升状排列布置，相邻两个主压力辊，前一个的辊顶水平位置高于或等于后一个的辊底水平位置；上滤带和下滤带重叠夹带压滤物料从处于最低位的主压力辊进入压滤区；上滤带和下滤带进入压滤区中的每个主压力辊均是从其下部缠绕进入，上部离开。通过压力辊的合理布置，使压滤过程中物料中被挤压出来的水分能全部自动落入辊筒下方的接水槽内，避免其回流到被挤压过或者待挤压的物料中，从而大幅度提高带式压滤机的脱水效率。
The invention relates to a belt filter press. In the filter press area, the main pressure rollers are arranged in a spiral ascending order from low to high in the vertical direction of the horizontal plane. There are two adjacent main pressure rollers, and the horizontal position of the top of the former roller is higher than or equal to that of the latter roller. The bottom horizontal position; the upper filter belt and the lower filter belt overlap and entrain the filter material to enter the filter press area from the main pressure roller at the lowest position; the upper filter belt and the lower filter belt enter each main pressure roller in the filter press area from the Its lower part winds in and its upper part leaves. Through the reasonable arrangement of the pressure rollers, all the water squeezed out of the material during the filter press process can automatically fall into the water receiving tank under the rollers, preventing it from flowing back into the squeezed or to-be-squeezed materials, thereby Greatly improve the dehydration efficiency of the belt filter press.
Description
Technical field
The present invention relates to the belt filter press in dehydration equipment field, particularly relate to a kind of belt filter press.
Background technology
In the industrial and agricultural productions such as metallurgy, chemical industry, papermaking, process hides, alcohol sewage disposal, livestock culture, urban catering rubbish, usually need waste liquid and waste residue to association to carry out Separation of Solid and Liquid, and be that after separating, the moisture content of waste residue is lower, the processing of waste residue is also easier, and integrated treatment cost also can be lower.Therefore, in various dehydration equipments, can uninterruptedly produce continuously owing to having, simple to operate, operation expense is low, and solid-liquid separation efficiency is high relatively.At present, in the production practices of above-mentioned industry at home and abroad, more used belt filter press.But on the whole, the efficiency of existing belt filter press Separation of Solid and Liquid need further raising, after separating, the water content of waste residue also has larger gap from the requirement of subsequent treatment process, has not adapted to social development and resource has been made full use of to the requirement day by day improving with environmental protection.
Why not ideal enough existing belt filter press dehydrating effect is, is mainly that the reason of the following aspects causes:
1. the mounting arrangements of pressure roll is scientific and reasonable not.Because pressure roll is arranged unreasonable, the trend of strainer and spatial limitation, cause belt filter press in the time of operation, the moisture that is extruded out in material cannot automatically complete and separate with strainer with roller, and moisture is fully collected and drained by modes such as installation drip trays, but wherein a large portion reflux again or drop onto be extruded or material to be extruded in, so some becomes invalid dehydration the moisture that each pressure roll is extruded, thereby have a strong impact on the dewatering efficiency of belt filter press, caused dehydrating effect undesirable.
2. strainer is carried press filtration material secretly to enter the direction of pressure roll unreasonable.It is to enter from the top of pressure roll mostly that existing belt filter press strainer is carried material secretly, and go out bottom, and such moisture that can cause pressure roll to squeeze out that arranges significantly reduces, and separative efficiency obviously reduces.Because while setting like this, material is subject to the middle and upper part that the region of maximum pressure is pressure roll on pressure roll, the moisture that is extruded out at this is also maximum, but this part out squeezed moisture also cannot be realized and separating with material, because of its flow direction consistent with the traffic direction of pressure roll and strainer, can be along strainer surface to roller flows, but in the time that it flow to the middle and lower part of pressure roll, the pressure that material is subject to reduces gradually, wherein quite a few is absorbed and goes back by material again, the part not being absorbed back just can fall from pressure roll, realize and separating.
3. there is defect in drive system, and operation stability and reliability are not high.The driving technique that existing belt filter press adopts be substantially all drive unit by chaindriven mode, give upper strainer driven roller and the transmission of lower filter belt driven roller simultaneously, and no longer include any transmission or be connected between upper strainer driven roller and lower filter belt driven roller.Owing to being chain transmission, and be the driven sprocket that drive unit sprocket for main drive drives strainer driven roller and lower filter belt driven roller simultaneously, restriction on locus tend to cause chain and one of them driven roller driven sprocket to engage double team angle less, add that in addition chaindriven long-play is easy to occur wearing and tearing and makes the intrinsic deficiency of chain slack, in the time that band filter work operating load is larger, driven roller driven sprocket and chain engagement place tend to occur slippage phenomenon, thereby cause the operation of strainer and lower filter belt to occur speed difference, asynchronous, there is the loose of discontinuity, filter cake loses pressure, dehydrating effect is subject to serious impact.Meanwhile, there is loose strainer and also easily occur sideslip and gauffer, both affected the stability of belt filter press operation, affect again the service life of strainer.
4., easily there is cracking, phenomenon of rupture in roller machinery insufficient strength.Structural design and the manufacture craft of existing roller for belt-type filter press are: roller is made up of a roller cylindrical shell, two end face disc and a single mandrel, end face disc is positioned at two ends of roller cylindrical shell, its excircle and the welding of roller cylindrical shell inner periphery, inner periphery and axle welding.Facts have proved, when all S-type layouts of pressure roll of belt filter press, the pressure that pressure roll bears only comes from the situation of strainer tensile force, and this structure can meet instructions for use substantially.But when pressure roll is except S-type layout, increase pair roller arranges simultaneously, and when pair roller extruding force is set greatlyr, the defect of this construction machine insufficient strength will show very obviously, be easy to ftracture at the weld of end face disc and axle, thereby cause belt filter press normally to use.
5. the design of permeable roller is reasonable not, and water outlet efficiency is not high.What existing belt filter press first pressure roll on feedstock direction was generally installed is all a permeable pressure roll, its design feature is: roller is made up of a cylindrical shell with holes, two end face disc, two to three cylinder inner bushing rings and a single mandrel, on end face disc excircle, have delivery port, be welded in two ends of cylindrical shell with holes, cylinder inner bushing ring excircle is not outputed the mouth of a river, be welded between inner barrel with holes, end face disc end face disc inner periphery and axle welding.Facts have proved, such design exists comparatively significantly not enough, while being press filtration work, roller inside upper part squeezes out and enters the moisture of roller inside, can not directly discharge rapidly from the two ends of cylinder roller, but flow to from top to bottom in bottom just in the material of press filtration and not press filtration, cause the loss of dewatering efficiency.Simultaneously, on cylinder inner bushing ring excircle, there is no delivery port, the part moisture that also can cause flowing in roller cannot flow out from the two ends of roller, form higher little " pond " of water level, the material that is about to enter roller press filtration district is diluted and press to rear and both sides, cause the final filter cake extruding middle very thin, even there is no material, also can affect the dewatering efficiency of belt filter press.
6. pair roller crush-zone is too little, and material dewatering is insufficient.The extruding force being subject in pressure-filtering process in order to strengthen material, the dehydrating effect of enhancing belt filter press, existing belt filter press generally adopts a partial pressure roller to be designed to man-to-man pair roller and installs, and obtains good effect.But due to be one to one, the extruding force on the just line that material is subject on every pair of pressure roll, the region of the pair roller extruding force being therefore subject to is too little, does not also realize sufficient dehydration and just leaves press filtration district, dehydrating effect is also subject to larger restriction.
7. go up lower filter belt and horizontal plane angle too large, charging is inhomogeneous.When existing belt filter press manufactures and designs, substantially do not consider lower filter belt and horizontal plane before entering with first pressure roll of filter press filtration district angle and on the impact on dehydrating effect of the angle of strainer and lower filter belt, main existing problems are that two angles are all excessive.Lower filter belt and horizontal plane angle are excessive, can make this be occurred to slide or roll by evenly the pave material of lower filter belt of distribution device or material distributing machine, material thing has produced variation mutually, become uneven, inhomogeneous, enter behind press filtration district and can cause material cake became uneven, the pressure distribution being subject to is everywhere also inhomogeneous, the water content of expecting cake after press filtration is unstable, when serious, can cause strainer asynchronous, occur gauffer, reduce the strainer life-span.And upper strainer and lower filter belt angle are excessive, material is not subject to any pressure of lower filter belt entering before press filtration district, be subject to suddenly very large pressure in the time arriving first pressure roll, and material just there will be and retreats phenomenon, cannot make to expect that cake reaches due thickness, have a strong impact on the output of equipment.
8. distribution device is treating that press filtration material is arranged into strainer, and cloth effect is bad.Existing belt filter press is all often that distribution device is arranged on to upper strainer top, treating that press filtration material is arranged on upper strainer, then is arranged on lower filter belt via upper strainer.Although arrange like this length that has increased some gravity dehydrations district, but there will be at upper strainer and be arranged uniform material, after falling lower filter belt, thing changes mutually, can become again uneven, inhomogeneous, enter behind press filtration district and can cause material cake became uneven, the pressure distribution being subject to is everywhere also inhomogeneous, the water content of expecting cake after press filtration is unstable, when serious, can cause strainer asynchronous, occur gauffer, reduce the strainer life-span.
9. the kiss-coating layer thickness of pressure roll and driven roller is inadequate.The pressure roll of existing belt filter press and driven roller outer surface kiss-coating layer thickness are generally between 5-6mm, because rubber is too thin, roller surface is very hard, elasticity is little, " engagement " degree of depth that cannot form with the contact-making surface of strainer is inadequate, therefore and the frictional force forming between strainer also will be smaller, in the time increasing strainer tensile force in order to improve belt filter press dewatering efficiency, when driven roller will bear larger load, strainer tends to occur skidding, and then causing strainer asynchronous, band filter cannot normally dewater.
Therefore, more scientific and reasonable in the urgent need to having a kind of roller and strainer layout to install, roller design processing is more scientific and reasonable, mechanical strength is high, can bear large pressure, drive stability and reliability higher, the more even reasonably band press filter of cloth, thereby really reach further raising press filtration material dewatering efficiency, reduce the object of the follow-up dry processing cost of material.In view of above discussion, the inventor studies, designs through continuous, and after repeatedly verifying, finally creates the present invention with practical value.
Summary of the invention
The object of the invention is to overcome the deficiency existing on existing belt filter press Design and Features, a kind of belt filter press is provided, the more existing belt filter press of its dewatering efficiency is improved largely.
Goal of the invention of the present invention is also to provide a kind of belt filter press, the stability of its running and reliability, and more existing belt filter press is improved largely.
The object of the invention is to be achieved through the following technical solutions: a kind of belt filter press, comprise frame, drive unit, roller, strainer, strainer tensioning apparatus, strainer deviation correcting device, pair roller pressue device, distribution device, filtering band cleaning unit, unloader knife and drip tray, roller comprises driven roller, pressure roll, idler roller, guide roller, regulating roller, carrying roller; Pressure roll comprises principal pressure roller and squeeze pressure roller, it is characterized in that: in press filtration district, principal pressure roller is in the vertical direction of horizontal plane, be successively spiral uprising shape arranged from low to high, adjacent two principal pressure rollers, previous roller top horizontal level greater than or equal to the roller of latter at the bottom of horizontal level; The overlapping press filtration material of carrying secretly of upper strainer and lower filter belt enters press filtration district from the principal pressure roller in lowest order; Each principal pressure roller that upper strainer and lower filter belt enter in press filtration district is to be all wound around and to enter from its underpart, and top is left.
Described upper strainer idler roller incision inferius to the upper strainer between first principal pressure roller incision inferius and the angle between horizontal plane is less than 20 degree, and lower filter belt idler roller incision superius to the angle between the lower filter belt between first principal pressure roller incision inferius is less than 10 degree.
It is high permeable pressure rolls that described pressure roll has one or more.
Described high permeable pressure roll, is characterized in that: comprise cylindrical shell with holes, axial liner plate, main shaft, main shaft is positioned at cylindrical shell with holes, and axially liner plate is welded between cylindrical shell with holes and main shaft.
Described axial liner plate becomes 0～miter angle to be welded between cylindrical shell with holes and main shaft with main-shaft axis.
Described main shaft is combination multidiameter.
Described combination multidiameter comprises support cylindrical shell, disc, axle.
Described disc comprises disc in end face disc, cylinder.
On described disc, be welded with reinforcement gusset.
Hole on described cylindrical shell with holes is up big and down small circular hole or elliptical aperture, is " product " font or " plum blossom " shape or other geometries and distributes.
It is that a principal pressure roller is arranged and installed more than one squeeze pressure roller that described pressure roll pair roller has a pair of or a pair of above installation form.
Described provides extruding force to multiple squeeze pressure rollers of dress by same butt-roller extruder with a principal pressure roller.
Multiple squeeze pressure rollers of dress are equated by quantity with it for described and a principal pressure roller or unequal multiple butt-roller extruder provides respectively extruding force.
Described pressure roll, driven roller outer surface kiss-coating layer thickness are more than 10mm.
It is reinforced rollers that described roller has one or more.
Described reinforced roller comprises cylindrical shell, end face disc and axle, it is characterized in that: also comprise disc in the cylinder being installed between end face disc.
In described end face disc or cylinder, on disc, be welded with reinforcement gusset.
Described distribution device is arranged on lower filter belt idler roller to the lower filter belt top between first principal pressure roller of press filtration district, directly will treat that press filtration material is arranged on lower filter belt.
The hopper of described distribution device is upper young, prismatoid or other geometrical body that end opening is large.
On described upper strainer driven roller and lower filter belt driven roller, be separately installed with the transmission device of the transmission that cooperatively interacts.
Described transmission device is meshing gear or chimeric friction pulley, band and belt wheel, chain and sprocket wheel.
Described drive unit drives separately upper strainer driven roller or lower filter belt driven roller by chain transmission or gear drive, frictional drive, mode with transmission, shaft coupling.
Innovative point of the present invention and beneficial effect are:
1. propose and adopted that " in press filtration district, principal pressure roller is in the vertical direction of horizontal plane, be successively from low to high spiral uprising shape arranged, adjacent two principal pressure rollers, previous roller top horizontal level greater than or equal to the roller of latter at the bottom of horizontal level " innovative technology scheme, fundamentally overcoming and solved the moisture that existing belt filter press squeezes out wanders everywhere, cannot collect, dewatering efficiency is low, critical defect and a difficult problem that cannot cleaner production, make the moisture that material is extruded out on any pressure roll collect and all to flow in the drip tray below roller to its roller bottom, can also cannot again not flow back to or wander in press filtration material along strainer, realize whole separation and collection, the dewatering efficiency of arbitrary pressure roll does not all lose, greatly improve the dewatering efficiency of filter press.
2. propose and adopted " to go up strainer and the overlapping press filtration material of carrying secretly of lower filter belt and enter press filtration district from the principal pressure roller in lowest order; Each principal pressure roller that upper strainer and lower filter belt enter in press filtration district is to be all wound around and to enter from its underpart, top is left " innovative technology scheme; the region that makes material be subject to maximum pressure on pressure roll is also the middle and lower part that high exhalant region is in pressure roll; and the flow direction of the moisture that material is extruded out on this region just with the opposite direction of strainer operation, be more conducive to separating of moisture and material.Meanwhile, the moisture that material is extruded out in pressure roll middle and upper part is in the process mobile to middle and lower part, and because the pressure of middle and lower part is greater than the pressure of middle and upper part, resorption phenomenon can not occur moisture, can only flow downward and collect yet.Therefore, overcome the moisture squeezing out of prior art scheme existence by material resorption, dewatering efficiency is subject to the defect of heavy losses, and the dewatering efficiency of pressure roll has obtained significantly improving.
3. " upper strainer idler roller incision inferius to the upper strainer between first principal pressure roller incision inferius and the angle between horizontal plane is less than 20 degree in employing, and lower filter belt idler roller incision superius to the angle between the lower filter belt between first principal pressure roller incision inferius is less than 10 degree " innovative technology scheme, the material thing that not only can make distribution device evenly pave on lower filter belt is not destroyed mutually, enter equably press filtration district, effectively avoid occurring because of material cake gage distortion, the discontinuous moisture causing is unstable, asynchronous and the loose gauffer phenomenon of strainer, and make strainer and the lower filter belt tapered region in a fair-sized of overlapping front formation, material is entering the precompression that is subject to lower filter belt before press filtration district, clamp and begin to take shape material cake gradually, avoid the appearance of " material of vomitting " phenomenon, this precompression and material gravity stack simultaneously, also further improved the dehydrating amount in this region, be conducive to reduce material moisture after press filtration.
4. propose and adopt the innovative technology scheme of " a principal pressure roller is arranged and installed more than two or two squeeze pressure roller ", make material on each group pressure roll, all be subject to pair roller extruding repeatedly, pair roller crush-zone in press filtration district can become the increase of several times, the dehydration of material is longer, dehydration more fully, dehydration rate is higher, thereby make the dewatering efficiency of belt filter press be able to obvious raising.
5. the employing of " efficient permeable pressure roll " technical scheme, also efficiently solves the deficiency of the moisture backflow material that is extruded out in the existing permeable pressure roll course of work, has obviously improved the dewatering efficiency of permeable pressure roll.
6. the employing of " reinforced roller " technical scheme, the mechanical strength of roller is increased substantially, for strainer regulates larger tensile force, adopt pair roller material to be carried out to the pair roller extruding of large pressure simultaneously, further reduce the moisture after material press filtration, create necessary condition, also improved belt filter press reliability of operation.
7. adopt the technical scheme of " distribution device is arranged on lower filter belt idler roller to the lower filter belt top between first principal pressure roller of press filtration district; directly will treat that press filtration material is arranged on lower filter belt ", can make thing before the good material of the even cloth of distribution device is entering press filtration district remain unchanged mutually, integrality, uniformity and the continuity of filter cake are not only guaranteed, be conducive to guarantee stable dehydration rate and output, also help the stable operation of equipment.
8. the employing of " pressure roll, driven roller outer surface kiss-coating layer thickness are more than 10mm " technical scheme, make roller surface there is higher elasticity, when work, can form darker " engagement " with the contact-making surface of strainer, increase substantially mutual frictional force, in the time increasing strainer tensile force in order to improve belt filter press dewatering efficiency, when driven roller will bear larger load, can effectively avoid skidding of strainer, guarantee the synchronous and steady of strainer operation.
9. the employing of New type driving system, solve and overcome in existing drive system, exist because of jump tooth cause the operation of upper strainer and lower filter belt to occur speed difference, asynchronous, there is the loose of discontinuity, filter cake loses pressure, dehydrating effect is subject to the deficiency of serious impact, has guaranteed stability and the reliability of strainer running.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of description, below with preferred embodiment of the present invention and coordinate accompanying drawing to be described in detail as follows.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Fig. 1 a is the structural representation of the embodiment of the present invention;
Fig. 2 a is the structural representation of the high permeable pressure roll of the present invention;
Fig. 2 b is the structural representation of the high permeable pressure roll of the present invention;
Fig. 2 c is the left TV structure schematic diagram of the high permeable pressure roll of the present invention;
Fig. 3 a is the structural representation of the high permeable pressure roll of the present invention main shaft;
Fig. 3 b is the A-A sectional structure schematic diagram of accompanying drawing 3a of the present invention;
Fig. 4 a is the schematic diagram that pair roller of the present invention is installed embodiment;
Fig. 4 b is the schematic diagram that pair roller of the present invention is installed embodiment;
Fig. 4 c is the schematic diagram that pair roller of the present invention is installed embodiment;
Fig. 5 a is the main TV structure schematic diagram of pressure roll of the present invention and driven roller surface kiss-coating layer thickness;
Fig. 5 b is the left TV structure schematic diagram of pressure roll of the present invention and driven roller surface kiss-coating layer thickness;
Fig. 6 a is the main TV structure schematic diagram of the reinforced pressure roll of the present invention;
Fig. 6 b is the left TV structure schematic diagram of the reinforced pressure roll of the present invention;
Fig. 7 a is the partial structurtes schematic diagram of drive system embodiment mono-of the present invention;
Fig. 7 b is the partial structurtes schematic diagram of drive system embodiment mono-of the present invention;
Fig. 7 c is the partial structurtes schematic diagram of drive system embodiment mono-of the present invention;
Fig. 8 a is the partial structurtes schematic diagram of drive system embodiment bis-of the present invention;
Fig. 8 b is the partial structurtes schematic diagram of drive system embodiment bis-of the present invention;
Fig. 8 c is the partial structurtes schematic diagram of drive system embodiment bis-of the present invention;
Wherein:
1: frame 2: drive unit
3: upper strainer 4: lower filter belt
5: principal pressure roller 6: principal pressure roller
7: principal pressure roller 8: principal pressure roller
9: squeeze pressure roller 10: squeeze pressure roller
11: squeeze pressure roller 12: butt-roller extruder
13: butt-roller extruder 14: butt-roller extruder
15: drip tray 16: drip tray
17: drip tray 18: drip tray
19: drip tray 20: guide roller
21: guide roller 22: guide roller
23: guide roller 24: guide roller
25; Upper strainer idler roller 26: lower filter belt idler roller
27: upper strainer driven roller 28: lower filter belt driven roller
29: distribution device 30: upper strainer regulating roller
31: lower filter belt regulating roller 32: upper strainer deviation correcting device
33: lower filter belt deviation correcting device 34: upper filtering band cleaning unit
35: lower filter belt cleaning device 36: upper strainer tensioning apparatus
37: lower filter belt tensioning apparatus 38: carrying roller
39: loading and unloading material scraper 40: lower unloader knife
41: drip tray drainpipe 42: cylindrical shell with holes
43: axially liner plate 44: main shaft
45: support cylindrical shell 46: end face disc
47: disc 48 in cylinder: axle
49: strengthen gusset 50: cylindrical shell
51: end face disc 52: disc
53: strengthen gusset 54: axle
55: drive unit drive sprocket 56: driving chain
57: upper strainer driven roller drive sprocket 58: upper strainer driven roller travelling gear
59: lower filter belt driven roller travelling gear 60: shaft coupling
The specific embodiment
For further setting forth technological means and effect that the present invention takes for reaching predetermined utility model object, below in conjunction with accompanying drawing and preferred embodiment, to the specific embodiment, structure, feature and effect thereof of a kind of belt filter press proposing according to the present invention, be described in detail as follows.
As shown in Figure 1, a kind of belt filter press of preferred embodiment of the present invention, comprises frame 1, drive unit 2, upper strainer 3 and lower filter belt 4, four principal pressure rollers are principal pressure roller 5, principal pressure roller 6, principal pressure roller 7, principal pressure roller 8, three squeeze pressure rollers are squeeze pressure roller 9, squeeze pressure roller 10, squeeze pressure roller 11, three butt-roller extruders are butt-roller extruder 12, butt-roller extruder 13, butt-roller extruder 14, five drip trays are drip tray 15, drip tray 16, drip tray 17, drip tray 18, drip tray 19, five guide rollers are 20, guide roller 21, guide roller 22, guide roller 23, guide roller 24, upper strainer idler roller 25 and lower filter belt idler roller 26, upper strainer driven roller 27 and lower filter belt driven roller 28, distribution device 29, upper strainer regulating roller 30 and lower filter belt regulating roller 31, upper strainer deviation correcting device 32 and lower filter belt deviation correcting device 33, upper filtering band cleaning unit 34 and lower filter belt cleaning device 35, upper strainer tensioning apparatus 36 and lower filter belt tensioning apparatus 37, carrying roller 38, loading and unloading material scraper 39 and lower unloader knife 40, drip tray drainpipe 41.Described principal pressure roller refer to strainer and lower filter belt overlapping around the pressure roll of its running.Described squeeze pressure roller refer to principal pressure roller to dress, and can to principal pressure roller implement extruding pressure roll.Described press filtration district refers to that the overlapping press filtration material of carrying secretly of strainer and lower filter belt starts to contact first principal pressure roller to leaving last principal pressure roller, completes by the region of pressure roll extrusion dehydration process.
It is of the present invention that " in press filtration district, principal pressure roller is in the vertical direction of horizontal plane, be successively from low to high spiral uprising shape arranged, adjacent two principal pressure rollers, previous roller top horizontal level greater than or equal to the roller of latter at the bottom of horizontal level ", as shown in Figure 1, in the present embodiment, being successively from low to high spiral loads onto and rises shape and be arranged in order principal pressure roller 5, principal pressure roller 6, principal pressure roller 7, principal pressure roller 8, and the roller top horizontal level of principal pressure roller 5 greater than or equal to the roller of principal pressure roller 6 at the bottom of horizontal level, the roller top horizontal level of principal pressure roller 6 greater than or equal to the roller of principal pressure roller 7 at the bottom of horizontal level, the roller top horizontal level of principal pressure roller 7 greater than or equal to the roller of principal pressure roller 8 at the bottom of horizontal level, the like.Such technical scheme is mainly to make moisture that material is extruded out on any principal pressure roller in the process mobile to lower in order to ensure reaching, and can only collect to roller bottom and fall into the object of the drip tray below it at this.If frame 1 installing space does not allow, at the bottom of bottom line also will guarantee the roller top horizontal level of previous principal pressure roller and the roller of a rear principal pressure roller, horizontal level at grade, as horizontal level at the bottom of the roller of the roller top horizontal level of principal pressure roller 5 and a principal pressure roller 6 thereafter at grade, with the moisture avoiding squeezing out on a rear principal pressure roller 6 in the course of work cannot be all collecting at the bottom of its roller and fall in the drip tray 16 below it, but flow back to again above by the material of principal pressure roller 5 press filtrations and be about to enter in the material in press filtration district along strainer.
As shown in Figure 1, in actual manufacture is produced, principal pressure roller has met after above-mentioned mounting arrangements requirement, the upper strainer driven roller 27 of belt filter press, lower filter belt driven roller 28 and upper strainer idler roller 25, lower filter belt idler roller 26 is arranged on respectively the both sides in the press filtration district being made up of principal pressure roller 5 and 8, the quantity of principal pressure roller is even number, described upper strainer 3 and lower filter belt 4 are carried press filtration material secretly and are entered press filtration district from the principal pressure roller 3 in lowest order, can reach that " it is to be all wound around and to enter from bottom that upper strainer 3 and lower filter belt enter the 4 each fixation pressure rollers that enter in press filtration district, top is left " technical requirement.The region that such Technical arrangements can make material be subject to maximum pressure on principal pressure roller is also that high exhalant region is in its middle and lower part all the time, and the flow direction of the moisture that material is extruded out on this region just with the opposite direction of strainer operation, be more conducive to separating of moisture and material.Meanwhile, the moisture that material is extruded out in principal pressure roller middle and upper part is in the process mobile to middle and lower part, and because the pressure of middle and lower part is greater than the pressure of middle and upper part, resorption phenomenon can not occur moisture, can only flow downward and collect yet.Therefore, can finely overcome the moisture squeezing out of prior art scheme existence by material resorption, dewatering efficiency is subject to heavy losses defect.
As shown in Figure 1, described upper strainer idler roller 25 incision inferiuses to the upper strainer 4 between first principal pressure roller 5 incision inferiuses and the angle between horizontal plane is less than 20 degree, and lower filter belt idler roller 26 incision superiuses to the angle between the lower filter belt between first principal pressure roller 5 incision inferiuses is less than 10 degree, be a angle and be less than 20 degree, b angle is less than 10 degree.Such layout not only can make in the lower filter belt of this section milder, and the material thing that distribution device evenly paves on it mutually can be not destroyed, enters equably press filtration district.And can make strainer 3 and lower filter belt 4 tapered region in a fair-sized of this section of formation before overlapping, material is entering the precompression that is subject to strainer and lower filter belt before press filtration district, the clamped material cake that begins to take shape gradually, avoid the appearance of " material of vomitting " phenomenon, this precompression and material gravity stack simultaneously, also further improve the dehydrating amount in this region, be conducive to reduce the moisture of material after press filtration.When concrete enforcement, can also by between upper strainer idler roller and first principal pressure roller, install guide roller on strainer press down, or, between lower filter belt idler roller and first principal pressure roller, guide roller is installed the mode of pressing on lower filter belt even simultaneously, further regulate the operation route between upper strainer and lower filter belt, make the angle value at a angle and b angle meet above-mentioned technical requirement.
Described pressure roll has at least one to be high permeable pressure roll.During due to beginning press filtration, moisture content of material is very high, moisture has enough spaces and passage to flow out from material when material is extruded, acceleration moisture separates with material, thereby raising dewatering efficiency, first principal pressure roller in general press filtration district, the principal pressure roller 5 in Fig. 1 is all processed into high permeable pressure roll.Meanwhile, press filtration material original water content is higher, can also be second principal pressure roller, and the principal pressure roller 6 in Fig. 1 is also processed into high permeable pressure roll.As shown in Figure 2, described high permeable pressure roll comprises cylindrical shell 42 with holes, axial liner plate 43, main shaft 44.This main shaft 44 is positioned at cylindrical shell 42 with holes, and axially liner plate 43 is welded between cylindrical shell 42 with holes and main shaft 44.Described axial liner plate 43 becomes 0～miter angle to be welded between cylindrical shell 42 with holes and main shaft 44 with the axis of main shaft 44.As axial liner plate 43 becomes 5 degree angles with the axis of main shaft 44, no matter pressure roll runs to unspecified angle, the drainage channel jointly being formed by cylindrical shell 42 with holes, axially liner plate 43 and main shaft 44 be all one a head taller low skewed, enter the moisture in roller because there has been drop, can discharge from the two ends of pressure roll at faster speed.In order to accelerate the discharge of moisture, the height of the drainage channel being jointly made up of cylindrical shell 42 with holes, axially liner plate 43 and main shaft 44 can not design get Tai Gao, general control is comparatively desirable between 50-80mm, therefore, require the diameter of axle of main shaft 44 larger, in order both to save cost, to alleviate roller weight, meet again requirement of mechanical strength, described main shaft can be designed as combination multidiameter.As shown in Figure 3, described combination multidiameter comprises support cylindrical shell 45, disc, axle 48.Described disc comprises disc 47 in end face disc 46, cylinder.For further increasing the mechanical strength of roller, on described disc, gusset 49 is strengthened in welding, on general every disc, welds 3-6 piece.For ease of anticorrosion and increase the service life, the manufactured materials of described cylindrical shell with holes 42 is the common iron of stainless steel or the Coating preserving timber bed of material.For avoiding hole along too sharp, easily scratch strainer, be also more conducive to the flow separation of moisture, the hole on described cylindrical shell with holes 42 is that up big and down small circular hole or elliptical aperture is " product " font or " plum blossom " shape, or other geometries distribute.
In order to increase the pair roller crush-zone of material in pressure-filtering process, the partial pressure roller in press filtration district even all can be arranged to the installation of pair roller.In design with when definite pair roller, if the roller footpath of principal pressure roller is less, or pair roller crush-zone is required when less, pair roller can be designed as a principal pressure roller to a squeeze pressure roller to dress.As shown in Figure 1, principal pressure roller 6 is with squeeze pressure roller 9 to dress, and principal pressure roller 7 is with squeeze pressure roller 10 to dress, and principal pressure roller 8 and squeeze pressure roller 11 are to dress.As shown in Figure 4, take principal pressure roller 6 as example, if its roller footpath is larger, and described belt filter press design function requires while having more pair roller crush-zone, pair roller can be designed as a principal pressure roller 6 to two (as shown in Fig. 4 a) or three (as shown in Fig. 4 b, c), and even more than three squeeze pressure roller 9 is to dress.As a principal pressure roller 6 to three squeeze pressure rollers 9 to when dress, for ease of installation and attractive in appearance, three squeeze pressure rollers (9) are all designed to identical roller footpath, are arranged on same circular arc bearing block, control (as shown in Figure 4 b) by same butt-roller extruder 12.When described circular arc bearing block design and installation its circular arc in the center of circle take principal pressure roller 6 on the reference circle in the center of circle.As shown in Fig. 4 c, when a principal pressure roller 6 is installed three squeeze pressure rollers 9, three squeeze pressure rollers 9 also can be controlled with three butt-roller extruders 12 respectively, like this by regulating the different pressures of each butt-roller extruder 12, can on a principal pressure roller 6, form the pair roller crush-zone that multiple pressure increases gradually, the raising of more favourable dewatering efficiency from low to high.For the efficiency of pair roller extruding of bringing into play, no matter take which kind of form to install, the pressure direction that butt-roller extruder 12 acts on squeeze pressure roller 9 and principal pressure roller 6 must pass through the center of circle of squeeze pressure roller 9 and the center of circle of principal pressure roller 6.The structure of principal pressure roller 6 and squeeze pressure roller 10, butt-roller extruder 13 and principal pressure roller 8 and squeeze pressure roller 11, butt-roller extruder 14 and annexation are identical with principal pressure roller 6 squeeze pressure rollers 9, butt-roller extruder 12.
As shown in Fig. 5 a, Fig. 5 b, in order to improve coefficient of friction, to increase frictional force, avoid strainer and pressure roll and driven roller to skid, described pressure roll, driven roller are as the thickness d > 10mm of principal pressure roller 6,7,8, squeeze pressure roller 9,10,11, upper strainer driven roller 27 and lower filter belt driven roller 28 outer surface kiss-coating layers.In practice, from meeting effect needs and cost control, as comparatively suitable at 15-20mm in the kiss-coating layer thickness of principal pressure roller 6, principal pressure roller 7, principal pressure roller 8, upper strainer driven roller 27 and lower filter belt driven roller 28, roll surface elasticity is moderate like this, enough frictional force both can be provided, can avoid again roller face too soft, make that strainer easily gives a discount, gauffer.The kiss-coating layer thickness of squeeze pressure roller 9,10,11 is even more ideal at 30-50mm, roller surface has larger elasticity like this, in the time carrying out pair roller extruding, roller surface can produce suitable strain, be conducive to receive material, avoid material to be extruded by the both sides from strainer, dehydrating effect is even more ideal.In order better to coordinate and to meet above-mentioned technical requirement, add man-hour at above-mentioned roller kiss-coating layer, driven roller and principal pressure roller are selected the elastomeric material that hardness is relatively high, and squeeze pressure roller is selected the relatively low elastomeric material of hardness.
As shown in Fig. 6 a, Fig. 6 b, in order to provide implementation condition to the pair roller extruding of material being carried out to large pressure, described roller is processed as reinforced roller.Described reinforced roller comprises cylindrical shell 50, end face disc 51 and axle 54, and it also comprises disc 52 in the cylinder being welded between end face disc 51.In general cylinder, roller plate 52 is installed 2-3 piece.If a disc is installed 3 in cylinder, wherein two be the 1.5-2 times of axle 54 length of shaft with the mounting distance of end face disc 51, one is arranged on the centre position of axle 54.In actual production, in order further to improve its mechanical strength, also can in described end face disc 51 or cylinder, on disc 52, weld and strengthen gusset 53.On general every disc 51, weld 3-6 piece and strengthen gusset 53.
As shown in Figure 1, distribution device 29 of the present invention is arranged on the top of lower filter belt idler roller 26 to this section of lower filter belt 4 between first principal pressure roller 5 of press filtration district, directly will treat that press filtration material is arranged on lower filter belt 4.Described distribution device 29 can be the prismatoid hopper young on, end opening is large, and when work, lower filter belt 4 moves by frictional force material is taken out of, is provided with the material scraping plate of adjustable fabric thickness at discharging opening place.This design is very simple and practical, has both avoided ramming material, the putty of the up big and down small hopper-bottomed bin of routine, does not need again to increase feed power.Meanwhile, described distribution device 29 can be also the trapezoidal hopper young on, end opening is large, and a toothed binder axle dynamic driving, surperficial is installed at discharging opening place, regulates the high and low position of binder axle, can regulate the thickness of cloth.By binder axle is installed, also can realize certain material crushing function.In addition, for its both sides that the material falling from hopper central authorities is distributed equably, make cloth width meet designing requirement, the screw feeding axle that a two ends hand of spiral is contrary, difference is outside can also be installed in hopper.
For the easy jumping tooth existing in existing belt filter press drive system, the shortcomings and deficiencies that operational reliability is not high, the present invention has adopted new actuation techniques scheme, on described upper strainer driven roller 27 and lower filter belt driven roller 28, is separately installed with the transmission device of the transmission that cooperatively interacts.Described transmission device is meshing gear or chimeric friction pulley, band and belt wheel, chain and sprocket wheel; Described drive unit 2 drives separately upper strainer driven roller 27 or lower filter belt driven roller 28 by chain transmission or gear drive, frictional drive, mode with transmission, shaft coupling.The technical program has several embodiment, below enumerates two examples:
Example one: as shown in Fig. 7 a, Fig. 7 b, Fig. 7 c, be arranged on drive unit 2, drive unit drive sprocket 55, driving chain 56, upper strainer driven roller 27, upper strainer driven roller drive sprocket 57, upper strainer driven roller travelling gear 58, lower filter belt driven roller 28, lower filter belt driven roller travelling gear 59, upper strainer 3 and lower filter belt 4 in belt filter press frame 1.Upper strainer driven roller drive sprocket 57 and upper strainer driven roller travelling gear 58 are arranged on respectively the axle two ends of strainer driven roller 27, upper strainer driven roller travelling gear 58 engages with lower filter belt driven roller travelling gear 59, drive unit drive sprocket 55 drives upper strainer driven roller drive sprocket 57 to rotate by driving chain 56, upper strainer driven roller travelling gear 58 drives lower filter belt driven roller travelling gear 59 to rotate, and upper strainer driven roller 27 and lower filter belt driven roller 28 drive respectively strainer 3 and lower filter belt 4 to turn round.In running, can regulate by the adjusting device on drive unit 2 hold-down supports the degree of tightness of driving chain 56.
Example two: as shown in Fig. 8 a, Fig. 8 b, Fig. 8 c, be arranged on the drive unit 2 in belt filter press frame 1, upper strainer driven roller 27, upper strainer driven roller travelling gear 58, lower filter belt driven roller 28, lower filter belt driven roller travelling gear 59, upper strainer 3 and lower filter belt 4.The shaft coupling 60 of drive unit 2 is connected with the axle of lower filter belt driven roller 28, upper strainer driven roller travelling gear 58 engages with lower filter belt driven roller travelling gear 59, drive unit 2 drives lower filter belt driven roller 28 to rotate, lower filter belt driven roller travelling gear 59 drives upper strainer driven roller travelling gear 58 upwards to rotate, upper strainer driven roller 27 drives upper strainer 3 upwards to turn round, and lower filter belt driven roller 28 drives lower filter belt 4 to turn round downwards.
New drive system of the present invention also comprises: when the drive sprocket on described upper strainer driven roller 27 or lower filter belt driven roller 28 and travelling gear are arranged on the same side of roller, sprocket wheel in outside, gear is in inner side; Described drive unit 2 can be arranged in frame 1, also can be arranged on outside frame 1; Drive unit 2 is except driving by the mode of chain transmission and shaft coupling transmission upper strainer driven roller 27 and lower filter belt driven roller 28, can also be by gear drive, frictional drive, drive with the mode of transmission; Transmission between upper strainer driven roller 27 and lower filter belt driven roller 28, interlock, except adopting meshing gear, can also adopt chimeric friction pulley, belt and belt wheel, chain and sprocket wheel etc.; According to different operating environments, described drive unit 2 is the one in variable-frequency motor, electromagnetic adjustable speed motor, common electric machine, bavin (vapour) oil turbine, or the wherein a kind of combination in a kind of and cycloidal planetary gear speed reducer, hard flank of tooth cylinder stud wheel reductor, helical speed reduction gear, helical gear worm-gear speed reducer.
Described strainer tensioning apparatus is the governor motion of cylinder or air bag, hydraulic jack, spring.
On described filtering band cleaning unit, strainer and lower filter belt are respectively at least installed more than one; Described filtering band cleaning unit is using water under high pressure or pressure-air as cleansing medium.
Described strainer deviation correcting device regulates with cylinder or air bag, and tuningout induction adopts correction valve or optoelectronic switch; Described filter deviation correcting device is respectively at least installed one at upper strainer and lower filter belt.
Described butt-roller extruder is cylinder or air bag.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (7)
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| CN103611354A (en) * | 2013-11-29 | 2014-03-05 | 广西大学 | Multistage filtering squeezer for cassava residues |
| CN103785217A (en) * | 2014-02-27 | 2014-05-14 | 北京中矿环保科技股份有限公司 | Cascade pressurization belt type pressure filter |
| CN104524847B (en) * | 2015-01-05 | 2016-03-30 | 浙江华章科技有限公司 | A kind of sludge treater |
| CN104986938A (en) * | 2015-07-17 | 2015-10-21 | 东莞理文造纸厂有限公司 | Sludge thickener |
| CN105058834B (en) * | 2015-07-20 | 2017-03-15 | 广西力源宝科技有限公司 | Belt fermentation materials tablet machine |
| CN105107251B (en) * | 2015-09-22 | 2016-12-07 | 无锡市金禾环保工程有限公司 | Sludge dewatering belt press filtering machine |
| CN106001069B (en) * | 2016-07-01 | 2019-01-18 | 宜昌力帝环保机械有限公司 | Useless citrus processing complete set of equipments and technique |
| CN107050971A (en) * | 2017-03-30 | 2017-08-18 | 通山新知力环保设备机械厂（普通合伙） | Roller is filtered in a kind of press filtration for belt type sludge filter press |
| CN108211478B (en) * | 2018-02-26 | 2023-08-18 | 贾守民 | Novel belt vibration roll-in filter equipment |
| CN110078345B (en) * | 2019-05-31 | 2020-11-27 | 瑞美智能设备江苏有限公司 | Deep dehydration device for sludge |
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| CN101884857A (en) * | 2010-07-16 | 2010-11-17 | 广西力源新资源开发有限公司 | Vacuum belt press filter |
| CN202460265U (en) * | 2012-01-10 | 2012-10-03 | 广西力源宝农林科技发展有限责任公司 | Novel high-efficient belt type filter press |
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| JPS6016879B2 (en) * | 1980-08-01 | 1985-04-27 | 株式会社 西原環境衛生研究所 | Sludge treatment equipment |
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| CN101884857A (en) * | 2010-07-16 | 2010-11-17 | 广西力源新资源开发有限公司 | Vacuum belt press filter |
| CN202460265U (en) * | 2012-01-10 | 2012-10-03 | 广西力源宝农林科技发展有限责任公司 | Novel high-efficient belt type filter press |
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Denomination of invention: A belt filter press Granted publication date: 20140618 Pledgee: Agricultural Bank of China Limited Nanning Science and Technology Sub branch Pledgor: GUANGXI LIYUANBAO SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2024450000119 |
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