CN114392590A - Matched filter plate with external ear and corresponding white carbon black filter press - Google Patents

Matched filter plate with external ear and corresponding white carbon black filter press Download PDF

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Publication number
CN114392590A
CN114392590A CN202011050800.6A CN202011050800A CN114392590A CN 114392590 A CN114392590 A CN 114392590A CN 202011050800 A CN202011050800 A CN 202011050800A CN 114392590 A CN114392590 A CN 114392590A
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CN
China
Prior art keywords
filter
plate
ears
matched
carbon black
Prior art date
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Pending
Application number
CN202011050800.6A
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Chinese (zh)
Inventor
刘振华
朱国利
王瑞峰
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Jingjin Equipment Co Ltd
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Jingjin Equipment Co Ltd
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Publication date
Application filed by Jingjin Equipment Co Ltd filed Critical Jingjin Equipment Co Ltd
Priority to CN202011050800.6A priority Critical patent/CN114392590A/en
Publication of CN114392590A publication Critical patent/CN114392590A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D25/00Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12Filter presses, i.e. of the plate or plate and frame type

Abstract

The invention discloses a matched filter plate with ears outside and a corresponding white carbon black filter press, wherein the matched filter plate is integrally formed by injection molding by an injection molding machine, the installation step of the filter plate is simplified, a cloth clamping device is removed, a feeding hole of the matched plate is petal, and a feeding hole of a diaphragm plate is a high-rise boss; innovating the structural form and the arrangement mode of the filter points, increasing the diameters of the filter points and shortening the distances between the filter points, wherein each filter point and the filter points on the periphery form a plum blossom; the number of liquid inlet and outlet holes is reasonably increased, the diameter of a water collecting channel is increased, and the flow speed of filtrate including washing liquid is improved; the structure and the distance of the outer ears are changed, the transverse distance between the two ears of the membrane matching plate is reduced, the two ears are perpendicular to the plate edge, the two ears move inwards to be close to each other, certain spaces are reserved outside the ears, and a cloth hanging pin is additionally arranged, so that the cloth hanging is facilitated.

Description

Matched filter plate with external ear and corresponding white carbon black filter press
Technical Field
The invention belongs to the technical field of pressure filtration equipment and processes in a solid-liquid separation process, and relates to a white carbon black washing filter press.
Background
The filter press is a general intermittent operation pressure filtration device, and is suitable for solid-liquid separation of various suspensions. The washing filter press mainly comprises a frame, a pressing mechanism, a filtering and washing mechanism (filter plate), a plate pulling mechanism, a hydraulic driving mechanism, an electrical control system and the like, and the working process comprises the steps that a feeding pump conveys solid-liquid mixed materials into each filter chamber from a material hole to perform low-pressure static filtration; filtering particles in the solid-liquid mixture by using a filter cloth to form a filter cake; washing liquid is injected into a water collecting channel of the filter plate from washing holes at the upper corner and the lower corner by a washing pump, filter cakes are subjected to side washing, and filter liquor penetrates through the filter cakes and is discharged from the other filter plate; high-pressure medium fluid is introduced into the diaphragm plate squeezing holes, the diaphragm expands outwards to squeeze water in the filter cake, the aim of reducing the water content of the filter cake and improving the recovery rate of filtrate is fulfilled, and simultaneously, the regeneration of anhydrous filter cloth is realized; the plate pulling device pulls open the filter plate, and the filter cake falls off due to dead weight, so that the intermittent reciprocating cycle work is completed, and the solid-liquid separation process of the filter press is realized.
The filter plate is the core combined element of the filter press, usually the washing filter plate is formed by matching a matched plate and a diaphragm plate, commonly called as 'side washing' or 'cross washing', and the filter cloth is arranged on each filter plate to form a filtering and washing mechanism which is arranged on a cross beam of the filter press. The purpose of water washing is to remove soluble impurities in the filter cake or recover valuable mother liquor retained in the filter cake, and the washing mode is as follows: the side washing, the cross washing and the blind washing are respectively half-washing and are respectively suitable for different materials.
The existing washing filter press has the following defects: the cloth clamping device is arranged on the feeding hole, and is easy to break and difficult to assemble and disassemble; the circulation time of the washing liquid is long, and the production efficiency is seriously influenced; the filter cloth is not firmly installed, and the filter cloth is twisted in rotation, so that the filter is not uniform; the water consumption is high during washing, and the time and the water are wasted.
Disclosure of Invention
The invention aims to overcome the defects of the existing filter plate, solve the corresponding technical problem and provide a matched filter plate with ears outside and a corresponding white carbon black filter press.
The technical scheme adopted by the invention for solving the problems in the prior art is as follows: a matched filter plate with ears outside and a corresponding white carbon black filter press have the advantages of the filter plate with the ears outside, and are characterized in that a cloth clamping device of a filter plate feeding hole is removed; innovating the structural form and arrangement mode of the filter points; the number of liquid inlet and outlet holes is increased, the flow rate of filtrate and washing liquid is increased, and the time is shortened; the form and distance of the ears of the matching plate are changed, so that the sealing is tight, and the filter cloth is easy to install; the thickness of the feeding hole of the diaphragm plate is increased, so that the filter plate can bear the external pressure sufficiently, the filter cake is dry and easy to fall off, and the automatic operation is realized; the matched filter plate is widely favored particularly in the field of white carbon black filtration, and has the advantages of water saving, good washing effect, short filtration time and small occupied area.
Furthermore, the matched filter plates are integrally injection-molded by an injection molding machine, the mounted cloth clamping device is removed, the feeding holes of the matched plates are changed into petal-shaped feeding holes, the petals and the feeding holes are integrally molded, four petals are uniformly distributed around the feeding holes and are in smooth transition connection with the feeding holes, the petals are the same in shape and are flush in height, the total height of the petal-shaped feeding holes is slightly lower than the thickness (1-2) mm of the filter plates, and the thickness of the feeding holes is larger than that of the petals; the membrane plate feed holes are tall bosses, gentle slopes are formed around the feed holes and gradually decrease to be level with the filtering surface, the height of the bosses is 1-3 mm lower than the thickness of the filter plate, and the feed holes of the two plates are completely communicated in the same plane, so that a solid-liquid mixture can smoothly pass through the bosses.
Furthermore, the matched filter plate and the membrane matched plate change the arrangement mode and the structural spacing of filter points, no matter which filter point is seen, the filter points and the surrounding filter points form a plum blossom, the filter points are increased, the spacing distance between the filter points is shortened, the time of the washing liquid flowing through the filter surface is shortened, the washing effect is improved, and the washing water consumption is saved by about 20-30 percent.
Furthermore, the matched filter plates are reasonably arranged to increase the number of liquid inlet and outlet holes from the original one to three, so that the circulation speed of filtrate and washing liquid is increased, and the diameter of the water collecting channel is increased along with the increase of the diameter of the water collecting channel so as to adapt to the change of liquid flow, thereby improving the production efficiency of the filter press.
Furthermore, the injection-molded integrated matched filter plate has the advantages that the connection mode of the filter plate and the filter cloth is sleeve type, the feeding hole of the matched plate is petal-shaped, the corresponding filter cloth is sewn into the same shape and sleeved on the petal, so that the filter cloth is prevented from moving to shield the liquid inlet and outlet holes at four corners of the ear, and the liquid is prevented from flowing smoothly; the membrane plate feed hole is a high-rise boss, and the filter cloth is sleeved on the surface of the boss and fixed; the horizontal distance between the two ears is reduced, the two ears are perpendicular to the plate edges, the two ears move inwards to be close to each other, certain spaces are reserved outside the ears, one cloth hanging pin is newly added, the filter cloth corners are guaranteed not to droop and droop, the materials are filtered in a binding and twisting mode, and the sealing performance of the frame surface between the filter plates is improved.
Furthermore, the thickness of the membrane plate feeding hole is smaller than the thickness (1-3) mm of the filter plate and is far larger than that of the common filter plate, the feeding hole is an integral boss, and in order to increase the compressive strength, the section of the boss of the membrane plate is in a trapezoidal table shape, so that the stability of the foundation is guaranteed, and the pressure resistance and the wear resistance are realized.
The invention also provides a special white carbon black filter press, which uses the matched filter plates to form an integrated mechanism and consists of a thrust plate, a head and tail anti-corrosion plate, a plurality of matched filter plates, a pressing plate, filter cloth, an opening valve, a closing valve, a hydraulic driving system, a plate pulling system, an electric appliance control system and the like; during feeding, a solid-liquid mixture is conveyed to each cavity through a filter plate feeding hole by the pressure of a pump, solid particles in the solid-liquid mixture are intercepted by filter cloth to form a filter cake, filtrate is discharged from four corner liquid inlet and outlet holes, four corner dark current liquid discharge is realized, and neither volatilization nor leakage is realized; the washing mode is side washing, and the side washing process comprises the following steps: the washing liquid is introduced from one side of the filter plate, penetrates through the filter cake and the filter cloth, is discharged from the side surface of the other adjacent plate, finally flows into the ear hole through the water collecting channel and then is discharged, and the test proves that the washing water is saved and the washing effect is better than that of cross washing; the filter press has good sealing effect, water and time saving in washing and good economic benefit, is consistently good praised by users in the industry, and once becomes a special filtering tool in the field of white carbon black.
The matched filter plate with the ears and the corresponding white carbon black filter press provided by the invention have the advantages of high liquid outlet speed, high filtering and washing efficiency, small occupied area, dry and comfortable filter cakes and the like, the filtering mode of the industry is innovated, the production cost of the industry is reduced, and the economic benefit of the industry is improved.
Drawings
Fig. 1 is a schematic structural view of a matching plate in a filter plate matched with an external ear.
Fig. 2 is a schematic structural view of a membrane plate in the filter plate matched with the external ear.
FIG. 3 is a schematic view of the filter plate with external ears and the corresponding white carbon black filter press washing method (process flow) of the present invention.
Fig. 4 is a schematic cross-sectional structure diagram of a feed hole of a matching plate in a filter plate matched with an external ear.
FIG. 5 is a schematic cross-sectional view of the membrane inlet of the filter plate with ears.
Reference numerals: 1-cloth hanging pin, 2-external ear, 3-petal-shaped feeding hole, 4-support table, 5-liquid inlet and outlet hole, 6-water collecting channel, 7-sealing ring, 8-small hole water outlet groove, 9-frame sealing surface, 10-four corner liquid inlet and outlet hole, 11-filter point, 12-matching plate, 13-boss feeding hole, 14-high pressure medium hole, 15-membrane plate, 16-thrust plate, 17-head and tail anti-corrosion plate, 18-pressure plate, 19-liquid discharge valve and 20-feeding valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the filter press with external ear matching filter plates and the corresponding white carbon black, and the described embodiments are only a part of preferred embodiments of the present invention, but not all embodiments. All other embodiments, which are not inventive, made by the person skilled in the art on the basis of the embodiments of the present invention belong to the scope of protection of the present invention.
Examples
A filter plate with external ears and a corresponding white carbon black filter press are matched, a cloth hanging pin 1 is arranged in the middle of the top of the filter plate, small holes are formed in the edge of the filter cloth, and the cloth hanging pin 1 is matched (the cloth hanging pin is sleeved in the small holes of the filter cloth); the outer ears 2 and the filter plate are integrally molded by injection, so that the integral strength of the filter plate is ensured to be uniform; the petal-shaped feeding holes 3 are distributed in the center of the filter plate, so that on one hand, the solid-liquid mixture is divided, on the other hand, the petal-shaped feeding holes are mutually supported with the feeding holes 13 of the boss of the membrane plate and coact with the support table 4, and the filter plate can be ensured to bear enough pressure; the liquid inlet and outlet holes 5 are communicated and connected with the water collecting channel 6, the small-hole water outlet groove 8 is connected with the water collecting channel 6, the three are connected with each other, and the inlet and outlet circulation of filtrate and washing liquid is completed through the four-corner liquid inlet and outlet holes 10; the sealing rings 7 are embedded on the front and back surfaces of the four ears of the matching plate and act together with the frame sealing surface 9 to ensure that the liquid and the gas cannot leak and the filtering is performed smoothly; the filter points 11 are uniformly distributed in the cavities of the filter plates to form a seepage flow guide network; high-pressure media (gas and liquid fluids) are introduced into the high-pressure medium holes 14, so that the membrane is expanded outwards to extrude a filter cake formed in the cavity, so that the moisture in the filter cake is reduced, and the subsequent treatment of the filter cake is facilitated; the middle opening of the thrust plate 16 is communicated with a matched filter plate feeding hole and is responsible for conveying materials; the head and tail anti-corrosion plate 17 is a polypropylene filter plate with a half cavity, one surface of the head and tail anti-corrosion plate is in contact with the thrust plate 16 or the pressing plate 18, the other surface of the head and tail anti-corrosion plate is in contact with the filter plate, materials are isolated from being in contact with the steel piece, and the materials are prevented from corroding the steel piece.
A kind of external ear matches the filter plate and corresponding white carbon black filter press, the thrust plate 16 and compacting plate 18 connect the crossbeam, make up the filter press stander, 15 diaphragm plates and match the board 12 to arrange on the crossbeam of the filter press at intervals, the feed valve 20 opens while feeding, the solid-liquid mixture enters the cavity pocket from 16 ports of thrust plate, the filter cloth intercepts the supplies and forms the filter cake, after keeping pressure for a few minutes, the high-pressure fluid of high-pressure medium hole 14, make 15 swell of diaphragm plate, squeeze the moisture in the filter cake, the filtrate is from the inlet and outlet liquid hole 10 of four corners and flowing out, finish the feed process of the filter press; when a filter cake is washed, the feeding valve 20 is closed, the liquid discharging valve 19 is opened, washing liquid is introduced from one side of the filter plate, penetrates through filter cake filter cloth and is discharged from the side surface of the adjacent other plate, finally flows into the four-corner liquid inlet and outlet holes 10 through the water collecting channel 6 and is discharged, the function of washing one side of the filter plate is completed, and the same operation method is adopted if the filter cake is washed from the other side (see the attached drawings specifically).
The matched filter plate with the ears and the corresponding white carbon black filter press, provided by the invention, not only improves the filtering and washing efficiency, but also saves the production cost, and particularly has a professional level in the field of white carbon black.

Claims (5)

1. A matched filter plate with ears outside and a corresponding white carbon black filter press are characterized in that a matched membrane matching plate is integrally formed by an injection molding machine, so that the installation steps of the filter plate are simplified; innovating the structural form and arrangement mode of the filter points; the number of liquid inlet and outlet holes is reasonably increased, the diameter of a water collecting channel is increased, and the liquid flow rate is improved; the structure and the distance of the outer ear are changed, which is beneficial to the suspension of the filter cloth.
2. The matched filter plate with ears and the corresponding white carbon black filter press as claimed in claim 1, wherein the feeding holes of the membrane matching plate are integrally formed, the matching plate is petal-shaped, a plurality of petals are uniformly distributed around the feeding holes, the shapes are the same, the heights are consistent, and the total thickness of the petals is less than the plate thickness (1-2) mm; the membrane plate material holes are high bosses, the cross section of each membrane plate material hole is in a trapezoidal table shape, the height of each membrane plate material hole is 1-3 mm lower than the thickness of each filter plate, and the two hole diameters are in the same plane.
3. The filter plate with external ears and the corresponding white carbon black filter press according to claim 1, wherein the filter surface of the membrane matching plate changes the arrangement of the filter points, each filter point can form a plum blossom from the periphery, the diameter of the filter point is increased, and the linear distance between the filter points is shortened.
4. The filter plate and the corresponding white carbon black filter press matched with the filter plate with the outer ears as claimed in claim 1, wherein the membrane matching plate increases the number of liquid outlet holes and the diameter of a water collecting channel, changes the liquid flow and the flow velocity, and improves the production efficiency.
5. The filter plate and the corresponding white carbon black filter press matched with the filter plate with the outer ears as claimed in claim 1, wherein the transverse distance between the two ears of the membrane matching plate is reduced, the two ears are perpendicular to the plate edge, the two ears move inwards to be close to each other, a certain space is reserved outside each ear, and a cloth hanging pin is additionally arranged.
CN202011050800.6A 2020-09-29 2020-09-29 Matched filter plate with external ear and corresponding white carbon black filter press Pending CN114392590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011050800.6A CN114392590A (en) 2020-09-29 2020-09-29 Matched filter plate with external ear and corresponding white carbon black filter press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011050800.6A CN114392590A (en) 2020-09-29 2020-09-29 Matched filter plate with external ear and corresponding white carbon black filter press

Publications (1)

Publication Number Publication Date
CN114392590A true CN114392590A (en) 2022-04-26

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CN202011050800.6A Pending CN114392590A (en) 2020-09-29 2020-09-29 Matched filter plate with external ear and corresponding white carbon black filter press

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201154249Y (en) * 2008-02-26 2008-11-26 姜桂廷 Outer-flushing type box-shaped liquor drainage filter
CN103752055A (en) * 2013-12-24 2014-04-30 杭州兴源过滤科技股份有限公司 Efficient upper-feeding box-type filter plate and processing method thereof
CN214075220U (en) * 2020-09-10 2021-08-31 景津环保股份有限公司 Matched filter plate with external ear and corresponding white carbon black filter press

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201154249Y (en) * 2008-02-26 2008-11-26 姜桂廷 Outer-flushing type box-shaped liquor drainage filter
CN103752055A (en) * 2013-12-24 2014-04-30 杭州兴源过滤科技股份有限公司 Efficient upper-feeding box-type filter plate and processing method thereof
CN214075220U (en) * 2020-09-10 2021-08-31 景津环保股份有限公司 Matched filter plate with external ear and corresponding white carbon black filter press

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