CN101380611A - Filtration and dehydration-drying integrated centrifuge - Google Patents
Filtration and dehydration-drying integrated centrifuge Download PDFInfo
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- CN101380611A CN101380611A CNA2008100459182A CN200810045918A CN101380611A CN 101380611 A CN101380611 A CN 101380611A CN A2008100459182 A CNA2008100459182 A CN A2008100459182A CN 200810045918 A CN200810045918 A CN 200810045918A CN 101380611 A CN101380611 A CN 101380611A
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- 238000001035 drying Methods 0.000 title claims abstract description 83
- 238000001914 filtration Methods 0.000 title claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 38
- 230000018044 dehydration Effects 0.000 claims abstract description 37
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 37
- 238000005406 washing Methods 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000010354 integration Effects 0.000 claims description 31
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Abstract
本发明是一种离心过滤分离与热力干燥为一体的间歇式过滤离心机，其主要技术特点是：离心机的回转件由同步旋转的内、外轴系组成；外轴系为空心轴并轴向固定，与离心转鼓相连；内轴系位于外轴系内并通过键与外轴系连接，实现同步旋转，且内轴系能在一往复驱动机构的驱动下轴向运动，带动位于转鼓内的推料盘和转鼓盖轴向运动。新型离心转鼓位于机体内部，多根干燥喷气管均布在转鼓外围。本发明的主要特点是将过滤脱水、洗涤、热力干燥等多个操作单元融为一体，避免了物料在各工艺流程之间输送过程中可能造成的污染或结构形态的破坏。The invention is an intermittent filter centrifuge integrating centrifugal filtration separation and thermal drying. Its main technical characteristics are: the rotating part of the centrifuge is composed of synchronously rotating inner and outer shaft systems; the outer shaft system is a hollow shaft parallel shaft It is fixed in the direction and connected with the centrifugal drum; the inner shaft is located in the outer shaft and connected with the outer shaft through a key to realize synchronous rotation, and the inner shaft can move axially under the drive of a reciprocating drive mechanism, driving the The pusher disc in the drum and the drum cover move axially. The new type of centrifugal drum is located inside the machine body, and multiple dry air injection pipes are evenly distributed on the periphery of the drum. The main feature of the present invention is that it integrates multiple operating units such as filtration and dehydration, washing, and thermal drying, so as to avoid possible pollution or structural damage during the transportation of materials between various technological processes.
Description
Technical field
The present invention is a kind of novel Separation of Solid and Liquid and drying equipment, relates to processes such as centrifugal filtration, washing and dehydration and heating power drying, is a kind of batch centrifuge of efficient operation.The present invention combines a plurality of operating units such as filtering means dehydration, washing, heated drying together, the pollution that material may cause in the course of conveying or the destruction of structural form have been avoided between each technological process, have spatter property, facility compact, the feature of environmental protection, adaptability or the like advantage, be specially adapted to have the high-value product production and processings such as fine chemical product, pharmaceuticals, food and biological products of strict demand.
Technical background
Along with progress of science and technology, present the development trend of high-purity, high-quality, multiple batches of or many kinds and little output with human being's production and the relevant many industrial products of life, for the technical development of bioengineering, food engineering, modern pharmaceutical engineering and fine chemistry industry engineering etc. brings many new problems.Be in the production process of final products with solid particle or powder shaped material; the mechanical dehydration (dehumidification) that the solid-liquid suspension that develop integrated, economized, becomes more meticulous, highly cleans separates and both married technology of heating power drying are significant problems.For example, in medical industry, many pharmaceutical products newly developed, the sensitivity of its action effect is high, even very small amount of freely release all is flagrant.Therefore, the separation of many pharmaceutical products (comprising intermediate products and final products) requires centrifugation and heating power drying to finish in a single equipment.Separate and heat-dry production final stage at machinery, requirements such as secluding air and lucifuge also are the important reasons of development integration apparatus.So far, centrifugal dehydration---drying integrated machinery not only is seen in patent documentation, and has realized engineering practicability, serial engineering goods and application example have occurred.The present invention and a kind of dehydration---the drying integrated centrifuge of heating power is relevant.
United States Patent (USP) on November 17th, 5163895,1992 disclosed a kind of dehydration---the design of dry integration centrifugal machine.This centrifuge adopts the horizontal type structure layout, similar with common horizontal filtering centrifuge: the perforate bowl of a taper, as filter medium, its conelet end is fixedlyed connected with a hollow spindle with the sintering metal filter screen, and cantilever support is on bearing and bearing block; The rear end of axle connects pulley concial disk, with the motor-driven drum rotating; The front end of hollow spindle communicates with the rotary drum inner space, as the passage that advances suspension material and washings in rotary drum; The large awl end of rotary drum has one can just make the auger port closed when the rotary drum direction moves at axially movable whole cover plate, forms the rotary drum confined space, is convenient to centrifugal dehydration and drying process, then makes space open when mobile in the other direction, is convenient to discharging; Cover plate is contained on the axle with the main shaft coaxial line with bearing, and this axle is supported on the casing, can move axially; Cover plate is along with rotary drum rotates, but not affixed with rotary drum; The big end of rotary drum is with a cannelure outward and is fixed on the casing front apron, be used to collect the material that draws off from big end, and cannelure has an outlet, and mass transport outside certain position and casing or further dry pipe-line equipment are connected; At least fixedly be equipped with a scraping blade and cooperate with annular hopper at the big end of rotary drum place, and its rotation along with rotary drum is thrown to outlet with the material in the cannelure.Motor adopts the frequency control working method, and drive shaft is rotated with different speed with rotary drum, adapts to the operation of different phase.This centrifuge can have intermittently operated and two kinds of working methods of continued operation.The dry integration centrifugal machine of this dehydration---heating power has following characteristics: (1) does not have the form of the hard contact failure product of shedding mechanism (as scraper) and material; (2) contamination of products alleviates greatly even eliminates; (3) there is not the filter cake remnant layer; (4) very big operating flexibility.Its weak point is: it is big that (1) makes conical integral sintered metal rotary drum technical difficulty, the cost height; Be difficult to distribution material and spray washing water in rotary drum equably when (2) operating, separation factor is low, and clean result is bad; (3) discharge way only is suitable for minority bulky grain bulk material.
United States Patent (USP) on February 2nd, 5865993,1999 disclosed another kind of dehydration---the design of dry integration centrifugal machine.The basic thought of this scheme is, the automatic discharging and filtering centrifuge logical to a Daepori, front end at its casing connects a hothouse, and the wet stock after the centrifugal dehydration washing operation is finished directly enters hothouse in rotary drum, carry out fixed bed or boiled bed drying in hothouse.Hothouse and the centrifuge casing inner space airtight space of common formation, one mobilizable Porous Base is arranged in the bottom of hothouse, heated drying air (gas) enters hothouse by porous plate, pass the material that is deposited on the porous plate and carry out drying, or even make fluidization of material, dry run is reinforced.When movable Porous Base is closed, carry out drying process in the hothouse, open porous plate after drying is finished and draw off material.Dry waste gas is discharged from the top of hothouse, recycles after the dedusting after filtration.This design has following advantage: the system that (1) is compact, and centrifugal dehydration and final products drying are finished in a set of equipment; (2) all intermittent filtration centrifuges can be transformed into this integrated machine; (3) centrifugal and drying process can be optimized respectively; (4) dry two unit operations of centrifugal dehydration and heating power only need a cover control system; (5) application adaptability is wide; (6) lower operational cost; (7) higher processing safety.The problem of this type is: (1) dehydration and drying process are finished in the zones of different of a set of equipment respectively, are the machinery combinations of centrifugal dehydrator and drier, are not really real integrated centrifuge; (2) contour size of the unit(s) is bigger, and manufacturing, installation and working service difficulty are big.
Chinese patent publication number CN1238716A, open day on December 15th, 1999, patent name is centrifuge with inside-out filter and United States Patent (USP) 6159360, all discloses a kind of centrifugal filtration dehydration---the drying integrated system of heating power open day on December 12nd, 2000.This system as dehydration equipment, connects a solid thermal drier in the front end casing discharge gate bottom of centrifuge with bag-turning pattern filtering centrifuge, realizes the centrifugal dehydration of suspension and the heating power drying of filter cake in system simultaneously.In the dehydrating operations stage, suspension is in feed pipe adds rotary drum, and under centrifugal action, mother liquor passes filter media and goes out, and solid then is trapped in the filter bag surface and forms filter cake; After filter cake forms, can in rotary drum, spray into washings and wash, further reduce mother liquor content, raising final products purity in the filter cake; After washing was finished, dry gas (temperature higher heated drying gas better) passed filter cake under centrifugal force or pressure effect, further reduce capillary water, makes the mechanical water capacity of filter cake low as far as possible; Operate by the bag that turns over of centrifuge then, the wet cake still higher water capacity enters in the dry place.At drying nest, can carry out the drying process of hot joining touch drying or thermal convection current drying or the two combination.At the heater of the position additional fastening that drier contacts with material, can carry out contact drying to material; The lower raft of piling up material in the drier is made perforated plate construction, introduce hot-air (gas), make it pass porous plate and material bed, just can realize convective drying.Can also in dry place, cause vacuum state to strengthen drying condition, make the final water capacity of material lower.Also can in dry place, alternately apply vacuum and pressure condition, make the material fragmentation of forming agglomerate, help reducing the final water capacity of material.Identical in this system nature with United States Patent (USP) 5865993 designs, therefore have similar characteristics and problem.
Summary of the invention
The objective of the invention is to avoid the deficiency on the prior art, it is integrated high-efficient intermittently operated formula centrifuge that a plurality of operating units such as a kind of filtering means dehydration, washing, heated drying are provided, this centrifuge has been avoided the pollution that material may cause in the course of conveying or the destruction of structural form between each technological process, have advantages such as spatter property, facility compact, the feature of environmental protection, adaptability.
The main shaft that major technique characteristics of the present invention are centrifuges adopts hollow spindle 09 and the push-plate axle of installing with one heart 16, hollow spindle 09 horizontal being installed in the bearing block 07 that is fixed in cabinet 08 inside, back, support by pair of bearings 10, the left end of hollow spindle 09 is connected with special centrifugal reel 04 by bolt, and belt wheel 11 being installed at the right-hand member of hollow spindle 09, belt wheel 11 is driven by main motor 14.Here also can adopt other forms of transmission mechanism, as gear drive etc.Hollow spindle 09 drives centrifugal reel 04 rotation, thereby allows the material that enters in the centrifugal reel 04 that the centrifugal filtration dehydration takes place under action of centrifugal force.Push-plate axle 16 is installed in hollow spindle 09 inside with one heart, and is cooperated by the keyway 15 in feather key 13 and the hollow spindle 09, makes itself and hollow spindle 09 realize synchronous the rotation; Feather key design make push-plate axle 16 with hollow spindle 09 rotation synchronously in reciprocating motion on can also doing axially, by move back and forth driving pusher dish 06 axially-movable in the centrifugal reel 04, thereby draw off the cake layer of filter medium 19 tops by pusher dish 06.Push-plate axle 16 is a hollow shaft structure, the left and right two sections UNICOMs not of hollow shaft.Left side section during for axially-movable charging/washing/drying waste gas discharge one pipe 01 spatial accommodation be provided; Right section is in order to hold push rod 30.Discharge port 21 by preceding cabinet 02 lower end under the filter cake that unloads is used in gravity is discharged.
Realize filtering means dehydration---the dry integration centrifugal machine of the object of the invention, it comprises: by rousing the centrifugal reel 04 that top flange 22, rotatory drum wall 24 and dull and stereotyped base plate 25 3 parts are formed, be installed in hollow spindle 09 and push-plate axle 16 in the bearing block 07, and the reciprocating drive mechanism 12 that is installed in push-plate axle 16 right-hand members; The charging of installing on centrifugal reel 04 axial line/washing/drying waste gas is discharged one pipe 01, is distributed on many dry air jet pipes 17 on the centrifugal reel peripheral circumferential; The pusher dish 06 and the rotary drum lid 03 that are connected with push-plate axle 16 are installed in centrifugal reel 04 inside simultaneously; All component is installed in the airtight casing, and casing is made up of preceding cabinet 02 and back cabinet 08, and is connected to integral body with support.
Realize filtering means dehydration---the dry integration centrifugal machine of the object of the invention, its centrifugal reel 04 is made up of drum top flange 22, rotatory drum wall 24 and dull and stereotyped base plate 25 3 parts.Hollow spindle 09 is connected with the dull and stereotyped base plate 25 of centrifugal reel 04, and drives whole centrifugal rotation by it.On rotatory drum wall 24, have axial bar shaped notch 23, filter medium 19 is installed at rotatory drum wall 24 inwalls.After material is discharged one pipe 01 via charging/washing/drying waste gas feed pipe 26 enters in the centrifugal reel 04, centrifugal filtration takes place in material under centrifugal action, form filter cake at filter medium 19 inwalls, the filtrate that generates enters back cabinet 08 internal gathering by the bar shaped notch 23 on the rotatory drum wall 24, last filtrate port 18 discharge centrifuges by cabinet 08 below, back.Drum top flange 22 has special edge designs, back and 20 of liquid barriers is installed is had only small intermittence, plays the effect of sealing filtrate.Dull and stereotyped base plate 25 center drillings, push-plate axle 16 passes from centre bore.
It is two-layer or three layers of sleeve structure that charging/washing/drying waste gas is discharged one pipe 01.Outer layer sleeve is as feed pipe 26, with outside slurry vessel by pipeline connection, feed pipe 26 terminal flutings, it is uniform on axially at centrifugal reel 04 to be convenient to material.Weld a pipe as sluicing pipe 27 in feed pipe 26 inner concentric, and fluting or perforate on the sluicing pipe, fluting or perforate length are suitable with centrifugal reel, are convenient to washing lotion and flow out, and the filter cake that is formed in the rotary drum is evenly washed.Charging/washing/drying waste gas discharge one pipe 01 be installed in before on the cabinet 02 and stretch in the centrifugal reel 04 and be positioned on centrifugal reel 04 center line, the length that stretches into is suitable with the centrifugal reel width.Feed pipe 26 can be used as the dry exhaust emission tube in dryer section simultaneously, and this moment, feed pipe 26 ends were divided into two branch roads, and one is connected with slurry vessel, and another is communicated with cyclone separator by valve, combustion gas behind a small amount of material particles that recovery is pulled away.Charging/washing/drying waste gas is discharged one pipe 01 also can be designed to three layers of sleeve structure, and dry exhaust emission tube has independently pipe passage.
Realize filtering means dehydration---the dry integration centrifugal machine of the object of the invention, the piston type discharging is adopted in its discharging.Discharging is finished by the axially-movable drive pusher dish 06 of push-plate axle 16.Rotary drum lid 03 is connected with pusher dish 06 by fixed bar 05, and does axially-movable with pusher dish 06 when moving back and forth.Rotary drum lid 03 and pusher dish 06 center drilling are discharged one pipe 01 in order to hold charging/washing/drying waste gas in the axially-movable process.When push-plate axle 16 was in the limit on the right-right-hand limit position, rotary drum lid 03 closely contacted with drum top flange 22 end faces, plays sealing centrifugal reel 04 in centrifugal filtration dehydration and drying stage, and during discharging, rotary drum covers 03 and moves back and forth in the axial direction with pusher dish 06.
Push-plate axle 16 right-hand members connect reciprocating drive mechanism 12, mechanical type reciprocating drive mechanism 12 by guide post 29, the saturating lid 31 of guiding, cover 32 thoroughly, bearing 34, push rod 30 and drive motors 33 constitute; Have two through holes that are parallel to each other on the saturating lid 31 of guiding, one of them through hole is a unthreaded hole, and guide post 29 is installed in unthreaded hole inside, and another through hole is a shoulder hole, and in order to bearing 34 to be installed, push-plate axle 16 ends are installed in the bearing 34.Saturating lid 32 is installed in the saturating lid of guiding 31 right-hand members by bolt.Guide post 29 is the polished rod structure, and at the guide post end sensor 28 is installed, in order to control push-plate axle 16 moving displacement in the axial direction.The push rod 30 that is connected with drive motors 33 is installed in the push-plate axle in 16 right hollow weeks of section, be processed with spiral on the push rod 30, and with processing female lid 32 cooperate, rotatablely moving of motor changed into the axially-movable of push-plate axle 16, draw off filter cake in order to promote 06 axially-movable of pusher dish in the discharging stage.
This reciprocating drive mechanism can be to be mechanical type, fluid pressure type or pneumatic type etc.
Realize filtering means dehydration---the dry integration centrifugal machine of the object of the invention, many dry air jet pipes 17 are distributed on the periphery of rotatory drum wall 24.After the material filtering dehydration, introduce dry gas by dry air jet pipe 17 filter cake is carried out drying.Dry air jet pipe 17 is installed on the cabinet 08 of back, and terminal perforate or fluting, dry gas be by hole or groove ejection, enters from the bar shaped notch 23 of rotatory drum wall 24.
Filtering means dehydration of the present invention---dry integration centrifugal machine is a kind of centrifuge of intermittently operated, and operation cycle is divided into three phases during work: centrifugal filtration water smoking, heating power drying stage and discharging stage.
The centrifugal filtration dehydration
The operation in this stage is identical with general centrifugal filtration operation at intermittence, and its operating procedure is: start rotary drum to a high rotating speed → add slip → form filter cake and liquid is filtered in rotary drum and remove → introduce cleaning solution wet cake is washed → water capacity of further centrifugal minimizing filter cake in rotary drum.The general centrifugal filtration and the principle of washing are observed in the operation in this stage.
The heating power drying
After operations such as filtration washing dehydration are finished, the rotating speed of rotary drum is reduced to certain is low-level, as drying medium the wet cake of rotary drum carried out drying with hot gas.Two kinds of drying process modes are arranged: a) along with the injection of dry gas outside rotary drum, filter cake cylindraceous is blown off from rotary drum, under very low rotating speed, the material that blows off can roll in rotary drum along with the rotation of rotary drum and fully contact the wet branch that makes wherein with hot gas and be evaporated in the gas and discharge, and this kind mode is identical with common rotary drying operating principle; B), then not only made material maintain cylindric in the rotary drum but also under the gas effect, be in a kind of fluidized state, Here it is centrifugal fluidized bed drying by control rotary drum rotating speed if the wet cake after the centrifugal dehydration is loose.Centrifugal fluidized bed drying has higher dry tenacity and drying efficiency than rotary drying mode of operation, but operation the time must be controlled gas jet pressure and rotary drum rotating speed well.
Discharging
After drying is finished, start discharging push-plate mechanism material released rotary drum, material collection in the drainage conduit of airtight casing front end, the discharge mechanism discharge centrifuge through the drainage conduit bottom.
Filtering means dehydration of the present invention---dry integration centrifugal machine system and operation control are as follows:
System of common formation such as centrifuge and slurry vessel and pipeline, lye container and pipeline, dry hot gas device and pipeline, main control point comprises that main motor, discharging push-plate driving mechanism, charging control valve, washing lotion control valve, dry gas control valve, filtrate are discharged control valve, dried material is discharged controlling organization, dry waste gas discharge control valve etc.General operating control procedure is: a) through main motor rotary drum is controlled at certain suitable rotating speed (such as high workload rotating speed), opens inlet valve and tapping valve, material enters rotary drum and filters and form filter cake, outside the filtrate discharge machine; B) the rotary drum rotating speed is adjusted to maximum speed, carries out cake dewatering (liquid), opens wash fluid valve then and introduces cleaning solution, filter cake is carried out spray washing or washing by soaking, and then dehydration (liquid) reduces the filter cake water capacity to greatest extent; C) turn down the rotary drum rotating speed and enter fluid bed or rotary drying pattern, close inlet valve, wash fluid valve and tapping valve, open dry exhausting waste gas valve, open the dry hot gas intake valve and carry out drying process; D) drying is finished, and opens discharge mechanism, seals other all terminal valves, starts the discharging of discharging push-plate.
Compare filtering means dehydration of the present invention with existing type---dry integration centrifugal machine has following outstanding advantage:
1. centrifugal filtration dehydration and filter cake material heating power drying are once finished in bowl in order, have realized the integrated of dehydration and heating power drying process;
2. in rotary drum, can realize two kinds of drying process modes of centrifugal fluidized bed drying and rotary drying;
3. mechanical-moulded filter element such as bar screen cloth or expanded metals are installed in the cylindrical shape rotary drum of perforate, simple in structure, be easy to make, can satisfy the requirement of dehydration and heated drying simultaneously to filter media construction and material;
The sealing rotary drum can be realized discharging again when 4. the front and back of discharging push-plate dish structure and reciprocating motion had both guaranteed dehydration and drying process.
These service advantages make this type can satisfy the strict demand of high-value product production and processings such as fine chemical product, pharmaceuticals, food and biological products.
Filtering means dehydration of the present invention---dry integration centrifugal machine also has the advantage of some other aspect.
Description of drawings
Fig. 1 is a filtering means dehydration---the structural representation of dry integration centrifugal machine;
Fig. 2 is the centrifugal reel structural representation;
Fig. 3 is that charging/washing/drying waste gas is discharged one tubular construction schematic diagram;
Fig. 4 is a mechanical type reciprocating drive mechanism structural representation.
Description of reference numerals
01---charging/washing/drying waste gas is discharged the one pipe;
02---preceding cabinet;
03---the rotary drum lid;
04---centrifugal reel;
05---fixed bar;
06---the pusher dish;
07---bearing block;
08---the back cabinet;
09---hollow spindle;
10---bearing;
11---belt wheel;
12---reciprocating drive mechanism;
13---feather key;
14---main motor;
15---keyway;
16---the push-plate axle;
17---dry air jet pipe;
18---filtrate port;
19---filter medium;
20---liquid barrier;
21---discharge port;
22---drum top flange;
23---the bar shaped notch;
24---rotatory drum wall;
25---dull and stereotyped base plate;
26---feed pipe;
27---sluicing pipe;
28---sensor;
29---guide post;
30---push rod;
31---guiding is lid thoroughly;
32---saturating lid;
33---drive motors;
34---bearing.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
Embodiment 1:
Filtering means dehydration---dry integration centrifugal machine is used for medical sodium acid carbonate (NaHCO
3) centrifugal filtration and drying.Filtering means dehydration---dry integration centrifugal machine is connected jointly with support with back cabinet 08 by preceding cabinet 02 and forms.In the cabinet 08 of back bearing block 07 is installed, in the bearing 10 in the bearing block 07 hollow spindle 09 and push-plate axle 16 is installed with one heart, hollow spindle 09 left end is installed centrifugal reel 04, and right-hand member is installed transmission mechanism, the belt wheel 11 that the main motor 14 of serving as reasons here drives.Centrifugal reel 04 is made up of drum top flange 22, rotatory drum wall 24 and dull and stereotyped base plate 25 3 parts.Centrifugal reel 04 diameter is 800mm, and rotatory drum wall 24 effective Filter length are 400mm, have axial bar shaped notch 23 on the rotatory drum wall 24.Main motor 14 is the stepless frequency control motor, and the centrifuge working speed is 50～1500rpm.Push-plate axle 16 is installed in the hollow spindle 09 with one heart, and is attached thereto with feather key 13, does synchronous rotation with hollow spindle 09, also can realize reciprocating motion in the axial direction simultaneously.Push-plate axle 16 right-hand members connect a reciprocating drive mechanism 12, the mechanical type reciprocating drive mechanism by guide post 29, the saturating lid 31 of guiding, cover 32 thoroughly, bearing 34, push rod 30 and drive motors 33 constitute.Pusher dish 06 and the rotary drum lid 03 that is connected with push-plate axle 16 is installed in centrifugal reel 04 inside.Be evenly equipped with 3 dry air jet pipes 17 on the peripheral circumferential direction of centrifugal reel 04.Charging/washing/drying waste gas discharge one pipe 01 of making double-layer sleeve structure is installed on the preceding cabinet 02, and stretches in the centrifugal reel 04, and is positioned on the axial line of centrifugal reel 04.Preceding cabinet 02 below has discharge port 21, and discharge port 21 belows are installed dried material and discharged controlling organization.Back cabinet 08 left end below is provided with filtrate port 18.
Filtering means dehydration---when dry integration centrifugal machine is worked, start main motor 14 centrifugal reel 04 is accelerated to 200～300rpm, the accelerating sections time set is 75s.After quickening to finish, open inlet valve and tapping valve, material enters centrifugal reel 04 inner filtration by feed pipe 26, and reinforced time set is 30s.Further improve rotating speed to the 1000～1400rpm of centrifugal reel 04, reach the high workload rotating speed of centrifuge, this accelerating sections time is 10s.Centrifugal filtration takes place in feed liquid in centrifugal reel, form filter cake above filter medium 19, forms filtrate below filter medium 19, outside the filtrate port 18 discharge machines of filtrate by cabinet 08 below, back; The centrifugal filtration section time is 10s.Open wash fluid valve then, introduce cleaning solution from sluicing pipe 27, filter cake is carried out spray washing or washing by soaking, the washing section time set is that 20s. and then dehydration (liquid) dry, and the filter cake water capacity is reduced to greatest extent, and drying the section time is 30s.After drying predetermined extent, close inlet valve, wash fluid valve and tapping valve, reduce centrifugal reel rotating speed to 150～200rpm, be 10s deceleration time.Open dry gas control valve, dry exhausting waste gas valve after the deceleration, the ejection dry gas carries out drying to filter cake from dry air jet pipe 17, further reduces water capacity, and dry waste gas is discharged from dry waste gas exhaust pipe; It is 150 ℃ that dry gas enters temperature, and the dry EGT of discharge is 70 ℃; Be 10min drying time.This stage rotary drum rotating speed enters fluid bed or rotary drying pattern, and the material after the filtration obtains abundant drying.After drying is finished, close all terminal valves, further reduce rotating speed to the 50～100rpm of centrifugal reel 04, be 10s deceleration time.Start drive motors 33 then, drive the reciprocating drive mechanism operation.Reciprocating motion on the helical structure of push rod 30 is converted into the circular motion of drive motors 33 is axially carried out discharging thereby drive push-plate axle 16 promotion pusher dishes 06, and the unloading part time is 20s.So far centrifuge is finished an operating process.
The centrifuge operating temperature is 200 ℃, and the operation cycle is 815s, per hour can finish 4.4 cycles.Solid phase is 40% sodium acid carbonate in the suspension, and liquid phase is 60% (mass fraction).The single operation cycle can get dry products 52.45kg, and production per hour can reach 232kg, water capacity in the product＜0.5% (wet basis).
Embodiment 2:
Filtering means dehydration---dry integration centrifugal machine is used for the centrifugal filtration and the drying of medical potassium salt of penicillin.
In the centrifugal filtration dry run of potassium salt of penicillin, the mode of operation of filtering means dehydration---dry integration centrifugal machine and embodiment 1 are similar.
At filtering means dehydration---in the dry integration centrifugal machine, centrifugal reel 04 diameter 800mm, the effective Filter length of rotary drum is 400mm, filter area is 1m
2, adopt the hydro reciprocator structure to carry out discharging.
During work, start main motor 14 centrifugal reel 04 is accelerated to 100～200rpm, the accelerating sections time set is 15s.After quickening to finish, open inlet valve and tapping valve, material enters centrifugal reel 04 inner filtration by feed pipe 26, and reinforced time set is 240s.Further improve rotating speed to the 800～1000rpm of centrifugal reel 04, reach the high workload rotating speed of centrifuge, the acceleration time is 15s.Centrifugal filtration takes place in feed liquid in centrifugal reel, form filter cake above filter medium 19, forms filtrate below filter medium 19, outside the filtrate port 18 discharge machines of filtrate by cabinet 08 below, back; Filter cake thickness can reach 40mm; The centrifugal filtration section time is 60s.Open wash fluid valve then, introduce cleaning solution from sluicing pipe 27, filter cake is advanced three washings, the washing section time set is 240s, and 80%～95% impurity is reduced by in the washing back.And then dehydration (liquid) drying, the filter cake water capacity is reduced to greatest extent, drying the section time is 90s.After drying predetermined extent, close inlet valve, wash fluid valve and tapping valve, reduce centrifugal reel rotating speed to 100～150rpm, be 20s deceleration time.Open dry gas control valve, dry exhausting waste gas valve after the deceleration, the ejection dry gas carries out drying to filter cake from dry air jet pipe 17, further reduces water capacity, and dry waste gas is discharged from dry waste gas exhaust pipe; Be 2h drying time.After drying is finished, close all terminal valves, further reduce rotating speed to the 30～100rpm of centrifugal reel 04, be 15s deceleration time.Start the reciprocating drive mechanism operation then, promote push-plate axle 16 reciprocating motion drive pusher dishes 06 and carry out discharging, the unloading part time is 90s.So far centrifuge is finished an operating process.
Be used for the centrifugal filtration dry run of potassium salt of penicillin, the centrifuge operation cycle is 7985s (2.22h).Solid concentration is 20% in the suspension, and liquid phase is 80% (mass fraction).The single operation cycle can get dry products 42.94kg, and production per hour is 19.34kg, and moisture is controlled at below 0.9%.
Embodiment 3:
Filtering means dehydration---dry integration centrifugal machine is used for the centrifugal filtration and the drying of medical penicillin G sodium salt.
In the centrifugal filtration dry run of penicillin G sodium salt, the mode of operation of filtering means dehydration---dry integration centrifugal machine and embodiment 1 are similar.Centrifugal reel 04 diameter 400mm, the effective Filter length of rotary drum is 200mm, filter area is 0.25m
2, adopt the pneumatic type reciprocating mechanism to carry out discharging.
Be used for the centrifugal filtration dry run of penicillin G sodium salt, the centrifuge operation cycle is 714s.Solid concentration is 40% in the suspension, and liquid phase is 60% (mass fraction).Adopt nitrogen as dry gas when dry, the dry gas inlet temperature is 150 ℃, and dry waste gas is 70 ℃ when discharging.Each cycle can get dry products 5.46kg, and production per hour is 27.3kg, and the product moisture content is controlled in 0.2%.
Claims (10)
1, a kind of filtering means dehydration---the centrifuge of dry one comprises: constitute the housing of centrifuge jointly by preceding cabinet (02) and back cabinet (08), and housing is the totally-enclosed structure; Central authorities at back cabinet (08) are equipped with bearing block (07), and bearing block (07) inside is equipped with hollow spindle (09), and hollow spindle (09) left end is equipped with centrifugal reel (04); Charging/washing/drying the waste gas that is fixed on the preceding cabinet (02) is installed on the shaft core position of centrifugal reel (04) discharges one pipe (01); Centrifugal reel (04) inside is equipped with pusher dish (06) and the rotary drum lid (03) that is connected with push-plate axle (16), is evenly equipped with dry air jet pipe (17) on the peripheral circumferential of centrifugal reel (04); Push-plate axle (16) is installed in the hollow spindle (09) with one heart, and is connected with hollow spindle (09) with feather key (13); Connect a reciprocating drive mechanism (12) at push-plate axle (16) right-hand member; Preceding cabinet (02) lower end offers discharge port (21), and back cabinet (08) lower end offers filtrate port (18); Discharge port (21) below connects dried material and discharges controlling organization.
2, filtering means dehydration according to claim 1---dry integration centrifugal machine is characterized in that centrifugal reel (04) is made up of drum top flange (22), rotatory drum wall (24) and dull and stereotyped base plate (25) three parts; Rotatory drum wall (24) offers bar hole (23) in the axial direction, is coated with filter medium (19) in rotatory drum wall (24) inside, and filter medium (19) is mechanical-moulded metal filter element; Special edge designs and the liquid barrier (20) of drum top flange (22) forms small intermittence; Centrifugal reel (04) the drum end is dull and stereotyped base plate (25), dull and stereotyped base plate (25) center drilling, and push-plate axle (16) passes through from the center sky; Drum top flange (22), rotatory drum wall (24) and dull and stereotyped base plate (25) three parts connect as one structure by bolt and constitute centrifugal reel (04) jointly; Centrifugal reel (04) is connected with hollow spindle (09) by dull and stereotyped base plate (25).
3, filtering means dehydration according to claim 1---dry integration centrifugal machine, it is characterized in that push-plate axle (16) left end one in front and one in back fixing two disk-shaped parts, distance is suitable with the rotary drum width between two dishes, near push-plate axle (16) is pusher dish (06), away from push-plate axle (16) be rotary drum lid (03), rotary drum lid (03) is connected by fixed bar (05) with pusher dish (06); Rotary drum lid (03) all has central through hole with pusher dish (06).
4, filtering means dehydration according to claim 1---dry integration centrifugal machine, it is characterized in that charging/washing/drying waste gas discharges the sleeve pipe that one pipe (01) is a bilayer or three layers, be installed in preceding cabinet (02) and go up and stretch in the centrifugal reel (04) and be positioned on centrifugal reel (04) center line, the length that stretches into is suitable with the centrifugal reel width; The outermost layer of sleeve pipe is feed pipe (26), and feed pipe (26) is communicated with outside slurry vessel, discharges dry waste gas as dry exhaust emission tube at drying stage simultaneously, and its end imports cyclone separator by bifurcated pipe and another valve; Sluicing pipe (27) is the internal layer of feed pipe (26), is connected by pipeline with outside washing liquid bath; Here charging/washing/drying waste gas is discharged one pipe (01) also can make three layers of sleeve structure, and charging and dry waste gas are discharged separately independently pipe layer passage.
5, filtering means dehydration according to claim 1---dry integration centrifugal machine is characterized in that its special hollow spindle (09) design, and hollow spindle (09) is a hollow structure, by the horizontal installation of bearing (10) in the bearing block (07); Push-plate axle (16) is installed in hollow spindle inside with one heart, and hollow spindle (09) inside has keyway (15), cooperates with feather key (13) on being installed in push-plate axle (16); The transmission mechanism that the right-hand member of hollow spindle (09) is equipped with belt wheel (11) or other form drives rotation, and belt wheel (11) drives rotation by main motor (14), and main motor (14) is a variable-frequency stepless speed-regulating motor.
6, filtering means dehydration according to claim 1---dry integration centrifugal machine is characterized in that push-plate axle (16) also is hollow shaft structure, but the left and right not UNICOM of hollow shaft; The keyway (15) that is equipped with on the push-plate axle (16) in feather key (13) and the hollow spindle (09) cooperates, rotates synchronously with hollow spindle (09); Push-plate axle (16) left end is connected with pusher dish (06); Push-plate axle (16) right-hand member connects reciprocating drive mechanism
(12)。
7,, it is characterized in that the reciprocating drive mechanism (12) of push-plate axle (16) can be mechanical type, fluid pressure type or pneumatic type according to claim 1 or 6 described filtering means dehydrations---dry integration centrifugal machine; The mechanical type reciprocating drive mechanism is made of guide post (29), the saturating lid of guiding (31), saturating lid (32), bearing (34), push rod (30) and drive motors (33); Have two through holes that are parallel to each other on the saturating lid of guiding (31), one of them through hole is a unthreaded hole, and guide post (29) is installed, and bearing (34) is installed in another through hole, and push-plate axle (16) right-hand member is installed in the bearing (34); Saturating lid (32) is installed in the saturating lid of guiding (31) right-hand member, and is connected by bolt.
8, filtering means dehydration according to claim 7---dry integration centrifugal machine is characterized in that guide post (29) for the polished rod structure, and rise, stop bit puts sensor (28) is installed; Guide post (29) is parallel with push-plate axle (16), is installed on the back cabinet (08).
9, filtering means dehydration according to claim 7---dry integration centrifugal machine is characterized in that push rod (30) is a screw-rod structure, and saturating lid (32) centre bore is a female thread structure, and cooperates with push rod (30) formation; Push rod (30) is driven by drive motors (33).
10, filtering means dehydration according to claim 2---dry integration centrifugal machine, it is characterized in that uniform 3～5 dry air jet pipes (17) on the exterior periphery scope of centrifugal reel (04), have fumarole on the dry air jet pipe (17), fumarole is towards bar shaped notch (23); Dry air jet pipe (17) is installed in cabinet (08) inside, back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100459182A CN101380611A (en) | 2008-08-28 | 2008-08-28 | Filtration and dehydration-drying integrated centrifuge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100459182A CN101380611A (en) | 2008-08-28 | 2008-08-28 | Filtration and dehydration-drying integrated centrifuge |
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| CN101380611A true CN101380611A (en) | 2009-03-11 |
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| CNA2008100459182A Pending CN101380611A (en) | 2008-08-28 | 2008-08-28 | Filtration and dehydration-drying integrated centrifuge |
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|---|---|---|---|---|
| CN102671777A (en) * | 2012-04-11 | 2012-09-19 | 浙江轻机实业有限公司 | Intermittent feeding structure of two-stage pusher centrifuge |
| CN102974472A (en) * | 2012-12-04 | 2013-03-20 | 江苏牡丹离心机制造有限公司 | Horizontal type screw discharging centrifuge provided with hot air drying device |
| CN103230840A (en) * | 2013-04-28 | 2013-08-07 | 北京沃特玛德环境技术股份有限公司 | Process for conducting dehydration control on white clay calcium carbonate |
| CN105107647A (en) * | 2015-09-15 | 2015-12-02 | 张家港市中南化工机械有限公司 | Blanking mechanism of horizontal centrifugal machine and bag turning centrifugal machine using blanking mechanism |
| CN108273669A (en) * | 2018-03-23 | 2018-07-13 | 合肥通用机械研究院有限公司 | A kind of bag turning centrifugal machine and its dehydration, filter cloth regeneration method |
| CN109046804A (en) * | 2018-07-20 | 2018-12-21 | 湘潭惠博离心机有限公司 | Mechanical pusher centrifuge pusher driving device |
| CN111185308A (en) * | 2020-03-09 | 2020-05-22 | 上海亭博分离技术有限公司 | Centrifugal machine for separating chemical wastewater |
| CN113145318A (en) * | 2021-03-08 | 2021-07-23 | 合肥通用机械研究院有限公司 | Bag-turning type centrifugal system with solid-liquid discharge switching function |
| CN113227692A (en) * | 2019-11-18 | 2021-08-06 | 株式会社Lg化学 | Pressurized centrifugal dehydrator |
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| CN115837319A (en) * | 2022-09-07 | 2023-03-24 | 山东颐工材料科技股份有限公司 | A centrifuge in ASA high rubber powder process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671777A (en) * | 2012-04-11 | 2012-09-19 | 浙江轻机实业有限公司 | Intermittent feeding structure of two-stage pusher centrifuge |
| CN102974472A (en) * | 2012-12-04 | 2013-03-20 | 江苏牡丹离心机制造有限公司 | Horizontal type screw discharging centrifuge provided with hot air drying device |
| CN103230840A (en) * | 2013-04-28 | 2013-08-07 | 北京沃特玛德环境技术股份有限公司 | Process for conducting dehydration control on white clay calcium carbonate |
| CN103230840B (en) * | 2013-04-28 | 2014-07-23 | 王梅林 | Process for conducting dehydration control on white clay calcium carbonate |
| CN105107647A (en) * | 2015-09-15 | 2015-12-02 | 张家港市中南化工机械有限公司 | Blanking mechanism of horizontal centrifugal machine and bag turning centrifugal machine using blanking mechanism |
| CN108273669A (en) * | 2018-03-23 | 2018-07-13 | 合肥通用机械研究院有限公司 | A kind of bag turning centrifugal machine and its dehydration, filter cloth regeneration method |
| CN109046804A (en) * | 2018-07-20 | 2018-12-21 | 湘潭惠博离心机有限公司 | Mechanical pusher centrifuge pusher driving device |
| CN113227692A (en) * | 2019-11-18 | 2021-08-06 | 株式会社Lg化学 | Pressurized centrifugal dehydrator |
| CN111185308A (en) * | 2020-03-09 | 2020-05-22 | 上海亭博分离技术有限公司 | Centrifugal machine for separating chemical wastewater |
| CN113145318A (en) * | 2021-03-08 | 2021-07-23 | 合肥通用机械研究院有限公司 | Bag-turning type centrifugal system with solid-liquid discharge switching function |
| CN114367387A (en) * | 2022-01-17 | 2022-04-19 | 乐杰(海南)生物科技有限公司 | A cell separation, extraction and processing device |
| CN114367387B (en) * | 2022-01-17 | 2025-03-18 | 乐杰(海南)生物科技有限公司 | A cell separation and extraction processing device |
| CN115837319A (en) * | 2022-09-07 | 2023-03-24 | 山东颐工材料科技股份有限公司 | A centrifuge in ASA high rubber powder process |
| CN118512888A (en) * | 2024-07-23 | 2024-08-20 | 上海协微环境科技有限公司 | Scraper device, replacing method and process waste gas treatment system |
| CN118512888B (en) * | 2024-07-23 | 2024-11-19 | 上海协微环境科技有限公司 | Scraper device, replacing method and process waste gas treatment system |
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