CN114832459B - Bidirectional in-out multifunctional filter mechanism and corresponding high-efficiency large-sized box-type filter press - Google Patents
Bidirectional in-out multifunctional filter mechanism and corresponding high-efficiency large-sized box-type filter press Download PDFInfo
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- CN114832459B CN114832459B CN202110133638.2A CN202110133638A CN114832459B CN 114832459 B CN114832459 B CN 114832459B CN 202110133638 A CN202110133638 A CN 202110133638A CN 114832459 B CN114832459 B CN 114832459B
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 96
- 230000007246 mechanism Effects 0.000 title claims abstract description 83
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- 238000001914 filtration Methods 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000007777 multifunctional material Substances 0.000 claims abstract description 14
- 239000000706 filtrate Substances 0.000 claims abstract description 9
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/30—Feeding devices ; Discharge devices
- B01D25/302—Feeding devices ; Discharge devices specially adapted for chamber filter presses
Abstract
The invention discloses a bidirectional in-out multifunctional filter mechanism and a corresponding high-efficiency large-sized chamber filter press; the filtering mechanism comprises a head-tail single-sided filter plate, a two-way inlet and outlet filter plate, a multifunctional material passing distributing plate, a complete set of filter cloth, a material clamping distributor, a hole end lip-shaped sealing ring, a filter plate supporting handle and external pipelines of all inlet and outlet functions; the key points of the innovation scheme are as follows: the filter plate and its distributing plate are provided with various functional holes and a tail movable high-pressure hose is additionally arranged. The high-efficiency large-sized chamber filter press uses the filtering mechanism, and simultaneously, the related thrust plate and the related compacting plate inlet and outlet holes are correspondingly improved; the materials are simultaneously and bidirectionally and rapidly and uniformly split into the filter chamber through the double-feeding total channel, and the filtrate rapidly flows out from the two ends of the single Kong Shuangxiang blind flow total channel; comprehensively solves the technical problems of slower and uneven unidirectional parallel feeding, slower unidirectional dark effluent and the like, and has remarkable effect.
Description
Technical Field
The invention belongs to the technical field of large-sized van-type filter presses (patent classification number B01D 25/12), and relates to a bidirectional in-out large-sized van-type filter mechanism.
Background
The filter press is a pressurizing filter device with a plurality of filter chambers intermittently operated, and the filter chambers are formed by concave parts of adjacent filter plates sandwiching filter cloth; the box filter press is a filter device with a plurality of box filter plates, filter cloth and distributing plates arranged alternately to form a filter chamber; the large-scale filter press is a filter press with an effective filtering area of more than 750 m mm, a filter plate size of 2000mm multiplied by 2000mm and a length of more than 13m (exceeding the length of an international standard container); the device mainly comprises a frame, a pressing mechanism, a box-type filtering mechanism, a pulling plate mechanism, a cloth washing mechanism, a liquid receiving turning plate mechanism, a hydraulic driving mechanism, a PLC program control system and the like; is suitable for solid-liquid separation of various suspensions.
The box type filter mechanism is a core mechanism of a filter press and mainly comprises parts such as an end-to-end anti-corrosion filter plate, a box type filter plate (main plate), a distributing plate (auxiliary plate), filter cloth, a clamping distributor, sealing rings at the ends of all inlet and outlet holes, a filter plate supporting handle, all inlet and outlet functions, external pipelines and the like. The filter plate is provided with a feeding hole and a liquid outlet hole; the distributing plate is provided with no feeding diversion holes and is matched with the filter plate to form a box-shaped combined filter chamber main body; the filter cloth is respectively coated with a filter plate and a matched plate thereof to be used as a filter medium and seal the border sealing surfaces of the adjacent filter plates and the matched plates; the cloth clamping and distributing device is used for fixing the filter cloth of the feed orifice and distributing materials on two sides of the filter plate; the hole end sealing ring is used for sealing the end surfaces of the inlet and outlet holes of the adjacent filter plates and the matching plates, so that a plurality of groups of filter plates are communicated with the inlet and outlet holes of the matching plates to form a closed total inlet and outlet channel. The common box type filtering mechanism has no squeezing and dewatering function; the diaphragm box type filtering mechanism has a complex structure, and the rubber diaphragm is easy to damage.
The feeding mode of the filtering mechanism is as follows: most of the filter plates are fed in series, i.e. the filter plates are connected in series, i.e. the feed holes are arranged in the cavity parts of the filter plates, and the feed holes penetrate through the filter plates (connected in series), for example, the feed holes are arranged in the middle part or the middle upper part of the filter plates, so that the filter area and the effective volume of the filter plates are affected. Parallel feeding is a brand new and relatively efficient feeding mode, the feeding holes are arranged at the non-cavity part of the filter plate (compared with the serial feeding filter plates of the same type, the filtering area is increased by 10%), the feeding holes do not penetrate through each filter chamber (all filter chambers are connected in parallel), for example, the feeding holes are arranged at the left upper corner or the right upper corner of the filter plate, the filter plates and the feeding holes of the distributing plates are communicated into a closed type total feeding channel, and the feeding distributing holes are communicated with the total feeding channel and the filter chambers. Because the filter press is an intermittently operated device, the feeding speed affects the intermittent time and the production efficiency; because the filter press is a multi-filter-chamber pressurizing device, especially a large filter press has a length of more than 16m, whether the feeding of each filter chamber is uniform or not, and whether the pressure loss exists at the rear end or not influences the thickness, the dryness and the humidity of a filter cake and the integral filtering effect.
The liquid outlet mode of the filtering mechanism is as follows: distinguishing an effluent liquid and a dark effluent liquid; clear effluent: the two sides of the lower part of each filter plate are provided with liquid outlet holes and are provided with water nozzles, and the filtrate intuitively flows from the water nozzles to the open flow liquid collecting tank. The two corners below each filter plate are provided with 1-2 liquid outlet holes, the liquid outlet Kong Liancheng of a plurality of filter plates is a liquid outlet total channel, and the tail push plate (the compression plate) is a movable part, so that the liquid is discharged from the pipelines connected with the liquid outlet holes at the two corners below the head fixed thrust plate, and the filter press is environment-friendly, but the single liquid outlet one-way dark liquid outlet of the large filter press is slower, and the intermittent time and the production efficiency of the filter press are influenced.
The existing large-scale van-type filtering mechanism has the following defects: 1. the feeding mode is single-hole unidirectional or double-hole unidirectional parallel feeding, the pressure loss exists at the rear end, the feeding of multiple filter chambers is slow and not uniform enough, the thickness of filter cakes of each filter chamber is different, and the production efficiency and the filtering effect are affected; 2. the liquid discharging mode is single-hole unidirectional or double-hole unidirectional dark liquid discharging, the liquid discharging is slower, and the intermittent time and the production efficiency of the filter press are affected; 3. the filter cake dehydration performance of the common box type filter mechanism is poorer than that of the membrane box type filter mechanism, and the purity of the filter cake and the recovery rate of filtrate are affected. The optimization of the feed and discharge mode and the dehydration performance of the box type filtering mechanism is a long-felt and complex old and difficult problem.
Disclosure of Invention
The invention aims to overcome various defects of the existing large-scale box-type filter mechanism, comprehensively solve various technical problems of slow and uneven unidirectional parallel feeding, slow unidirectional dark effluent, poor filter cake dehydration performance and the like, and provide a bidirectional in-out multifunctional filter mechanism and a corresponding high-efficiency large-scale box-type filter press; bidirectional feeding-double feeding Kong Shuangxiang (reverse) parallel feeding, bidirectional discharging-single liquid outlet bidirectional dark liquid outlet, multifunctional-single hole rotation used as washing and purifying, back blowing material, blow drying and purifying multifunctional water or air inlet.
The innovative technical scheme adopted for solving the problems in the prior art is as follows: a bidirectional in-out multifunctional filtering mechanism (hereinafter referred to as a filtering mechanism) has the main points of the overall technical scheme that: compared with the prior art, the novel overall structure has the outstanding substantial characteristics that the prior unidirectional parallel feeding mode is innovated into a bidirectional parallel feeding mode, the double feeding holes are respectively used for bidirectional parallel feeding from the direction of a machine head fixed thrust plate and the direction of a machine tail movable compression plate, the prior unidirectional dark effluent mode is innovated into a bidirectional dark effluent mode, the single effluent hole is innovated into two dark effluent liquid from the direction of the machine head fixed thrust plate and the direction of the machine tail movable compression plate, the prior single-function water or air hole is improved into a multifunctional water-air alternating hole (the automatic conversion function of a PLC control electromagnetic valve), and the advanced blow-drying purification technology is adopted to improve the dehydration performance of the filtering mechanism; therefore, the problems of slow and uneven unidirectional parallel feeding, slow unidirectional dark effluent, poor filter cake dehydration performance and the like are comprehensively solved.
The specific design scheme of the filtering mechanism is as follows: the filter mainly comprises parts such as a machine head single-sided filter plate (stop plate anti-corrosion filter plate), a bidirectional inlet and outlet filter plate, a multifunctional material passing distributing plate, a machine tail single-sided filter plate (push plate anti-corrosion filter plate), a complete set of filter cloth (main and auxiliary plate filter cloth), a cloth clamping distributor (cloth clamping and filter plate two-sided distributor), a hole end lip seal ring, a filter plate supporting handle, and external pipelines of various inlet and outlet functions. The single-sided concave part filter surface structures of the machine head single-sided filter plate and the machine tail single-sided filter plate are the same as the single-sided structure of the material passing distributing plate, the machine head single-sided filter plate is provided with a left upper corner feed hole, a left lower corner bidirectional blind outflow liquid hole and a right lower corner multifunctional hole, and the machine tail single-sided filter plate is provided with a right upper corner feed hole and a left lower corner bidirectional blind outflow liquid hole; the two-way filter plate is a square double-hole two-way parallel feeding box-type filter plate, the two-sided structure is symmetrical, the periphery of the filter plate is provided with a frame sealing surface, the left and right upper corners of the filter plate are provided with feeding split hole end platforms lower than the frame sealing surface, different functional holes are arranged outside four corners of the filter plate, wherein the left and right upper corner holes are two-way feeding holes and T-shaped feeding split holes, the left and right lower corner holes are two-way dark current outlet holes and F-shaped liquid outlet converging holes, and the right lower corner holes are multifunctional holes; the multifunctional material passing distributing plate (material bypassing and feeding-free) is a matching plate (a platform without a feeding diversion hole and a diversion hole end) with a part of the same structure as the filter plate, four corners are provided with different functional holes with a part of the same structure as the filter plate, wherein the left upper hole and the right upper hole are bidirectional feeding holes, the left lower corner hole is a dark effluent hole, the right lower corner hole is a multifunctional hole and a Y-shaped multifunctional diversion hole, and the end surfaces of the inlet hole and the outlet hole are provided with a hole end mosaic sealing groove; the complete set of filter cloth comprises single-sided hanging filter cloth with a feed hole for a filter plate and double-sided cape filter cloth for a distributing plate; the clamping distributor is a sealing ring compression type clamping distributor; the lip-shaped sealing ring at the hole end is a high-pressure lip-shaped automatic sealing ring; the filter plate supporting handle is an injection molding filter plate handle and is provided with a triangular guide groove and double mounting holes which are matched with the positioning guide rail; each inlet and outlet function is externally connected with a pipeline, and comprises a fixed stainless steel pipeline, a movable high-pressure hose at the tail of the machine or a movable hard pipe at the head of the machine.
The connection relation of the main parts is as follows: for convenience of explanation, a thrust plate and a compacting plate closely related to the filtering mechanism are additionally arranged; the machine head single-sided filter plate is arranged on the thrust plate, and the machine tail single-sided filter plate is arranged on the compacting plate; the single-side hanging type filter cloth is hung on and fixed on two sides of the two-way inlet and outlet filter plate, and the clamping distributor is arranged on the T-shaped feeding and distributing hole of the filter plate to clamp the filter cloth on two sides of the filter plate and penetrate through the filter chambers on two sides of the filter plate; the hole end lip-shaped sealing ring is arranged in a hole end embedded sealing groove of the multifunctional material-passing matching plate, and the double-sided cloth-covered filter cloth is covered on two sides of the multifunctional material-passing matching plate and fixed; the filter plate handle is symmetrically arranged at the middle upper part (above the center of gravity of the filter plate) of the two sides of the filter plate and the distributing plate thereof, and the filter plate support handle supports the filter plate and the distributing plate thereof are arranged on a guide rail on a main beam of the filter press; the three T-shaped feeding and distributing holes, the F-shaped liquid outlet and the Y-shaped multifunctional distributing holes are respectively communicated with the three machine head and machine tail feeding total channels, the two-way liquid outlet total channels and the filter chamber; each inlet and outlet hole on the nose fixed thrust plate is connected by a stainless steel pipeline, and each inlet and outlet hole on the tail movable compacting plate is connected by a high-pressure hose or a movable joint hard pipe, so that a bidirectional inlet and outlet multifunctional filtering mechanism is formed.
The principle of double-hole bidirectional parallel feeding is as follows: because the bidirectional inlet and outlet filter plates are provided with bidirectional parallel feed holes, T-shaped feed diversion holes and frame sealing surfaces, the multifunctional material passing distribution plate is provided with a hole end sealing groove; the end surfaces of the two-way feeding holes (two-way feeding holes, two-way dark-flow liquid holes and multifunctional holes) are flush with the sealing surface of the frame, and the end surfaces of the two-way feeding holes and the two-way dark-flow liquid holes of the adjacent filter plates and the matched plates are respectively sealed by using rubber sealing rings; a group of parallel feeding filter chambers are formed by a plurality of adjacent two-way inlet and outlet filter plates and concave parts of the matched plates, the two-way parallel feeding holes of the filter plates are connected into a closed two-way feeding main channel, and the feeding diversion holes of the filter plates are communicated with the feeding main channel and the filter chambers. The materials pass through the two-way feeding main channel and are split into the filter chambers (the multiple chambers are in parallel), so that the feeding pressure of each filter chamber is balanced, the feeding is uniform, the feeding and the discharging are faster, and the filtering effect and the production efficiency are improved. The unidirectional double-hole parallel feeding is realized by unidirectional double-hole parallel feeding of a nose fixed thrust plate; the bidirectional double-hole parallel feeding is that the double holes are respectively fed in parallel from the direction of a machine head fixed thrust plate and the direction of a machine tail movable compression plate.
The basic working principle of the bidirectional inlet and outlet filter chamber is as follows: pressurizing by a feed pump to input materials into a filter chamber (between two pieces of filter cloth) in parallel through a bidirectional feed main channel, a feed diversion hole on a filter plate and a clamping and distributing device, performing low-pressure static filtration, retaining particles in the materials by the filter cloth to form a filter cake in the filter chamber, and enabling filtrate to flow out from a filtrate diversion hole on the filter plate of the filter chamber (between a filter plate distributing plate and the filter cloth) and the bidirectional liquid main channel through the filter cloth; the PLC controls the electromagnetic valve to automatically switch the functions of the multifunctional main channel, and high-pressure water or gas is input into the filter chamber through the multifunctional main channel and the multifunctional split holes on the distributing plate to sequentially perform back flushing, washing, purifying, drying and purifying; if necessary, the multifunctional total channel can also be used as an auxiliary channel for the dark effluent liquid, so that the effluent liquid is faster; the filter plate and its matched plate are pulled open to realize gravity cake unloading.
The filter cake blow-drying purification principle is as follows: high-pressure air enters a filter chamber from a multifunctional hole of a matching plate (no air leakage phenomenon), the high-pressure air flows upwards to blow and dry residual washing liquid in a filter cake granule seam, and then filtrate is reversely blown to a bidirectional dark effluent hole of a filter plate to flow out, so that the water content of the filter cake (the water content of colored concentrate filter cakes such as copper concentrate, gold concentrate and the like is less than 8 percent, and the water content is reduced by 6 to 12 percent under the same working condition in other industries) is reduced, and the purity of the filter cake and the recovery rate of mother liquor are improved; thus, the filter cake dehydration performance of a common box type filter mechanism is improved, and the water content of the filter cake is reduced by 3-5% compared with a membrane filter press; therefore, the method can replace the complex and vulnerable membrane filter press to squeeze and dewater, reduce the cost and increase the efficiency.
The invention also provides a high-efficiency large-sized chamber filter press, and the chamber filter press uses the bidirectional inlet and outlet multifunctional filter mechanism. The high-efficiency large-sized chamber filter press mainly comprises a frame, a pressing mechanism, a bidirectional inlet and outlet multifunctional filter mechanism (the invention), a pulling plate mechanism, a cloth washing mechanism, a liquid receiving turning plate mechanism, a hydraulic driving mechanism, a PLC program control system and the like. The high efficiency means that the corresponding high-efficiency bidirectional inlet and outlet multifunctional filtering mechanism is used, so that the feeding and the discharging are faster, the production efficiency is higher, and the filtering effect and the economic benefit are better.
The bidirectional inlet and outlet multifunctional filtering mechanism provided by the invention has the remarkable advantages of quicker and more uniform double-hole bidirectional parallel feeding, quicker single-hole bidirectional dark effluent and better single-hole wheel water and gas exchanging multifunctional filtering effect; the multifunctional drying and purifying comprehensive utilization device has the advantages that the filtering effect and the production efficiency are improved due to the bidirectional feeding and discharging, the filter cake dehydration performance of the filtering mechanism is improved due to the multifunctional drying and purifying comprehensive utilization, and the device can replace a complex and vulnerable membrane filter press to squeeze and dehydrate, reduce the cost and increase the efficiency; solves the comprehensive technical problem of the prior large-sized box-type filter mechanism and fills the blank of the large-sized box-type filter press with bidirectional parallel feeding and bidirectional dark effluent in China.
Drawings
FIG. 1 is a schematic diagram of a bi-directional in-out multifunctional filter mechanism according to the present invention.
FIG. 2 is a schematic diagram of a bi-directional filter plate for a bi-directional filter mechanism of the present invention.
FIG. 3 is a schematic diagram of a multi-functional overfeed plate of the bi-directional access multi-functional filter mechanism of the present invention.
Reference numerals: 1-machine head single-sided filter plates (stop plate corrosion-resistant filter plates), 2-bidirectional inlet and outlet filter plates, 3-multifunctional overfeed distribution plates, 4-machine tail single-sided filter plates (push plate corrosion-resistant filter plates), 5-complete filter cloth (main and auxiliary plate filter cloth), 6-clamp distributor (clamp and filter plate double-sided distributor), 7-hole end lip seal ring, 11-machine tail feed total channel (upper right corner channel), 12-parallel feed filter chambers, 13-bidirectional liquid outlet total channel (lower left corner channel), 14-multifunctional total channel (lower right corner channel), 15-machine head feed total channel (upper left corner channel), 21-frame sealing surface, 22-concave part filter mesh point, 23-filter plate bearing platform (double filter cloth support), 24-feed split hole end platform, 25-T type feed split hole, 26-bidirectional feed hole (upper left and right corner hole), 27-multifunctional hole (lower right corner washing blow hole), 28-F type liquid outlet sink hole, 29-bidirectional obscuration liquid outlet hole (lower left corner hole), 30-Y-type multifunctional split hole (water or air split hole), and 31-hole end embedded groove (embedded groove).
Detailed Description
The following describes the technical solution in the embodiments of the present invention with reference to the drawings in the embodiments of the bidirectional in-out multifunctional filter mechanism and the corresponding efficient large-sized chamber filter press, and it is obvious that the described embodiments are only a part of the preferred embodiments of the present invention, but not all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by the person skilled in the art without making any inventive work, such as a box-type filtering mechanism with the same dual-hole bi-directional parallel feeding and single-hole bi-directional dark outflow modes, the same multifunctional principle, and different filter plates and other structures of the filter plates and the matching plates, belong to the protection scope of the present invention.
Example 1
A bidirectional filter plate (simply called as a bidirectional filter plate) 2 of a bidirectional filter mechanism, which is a key element of the bidirectional filter mechanism; the key points of the innovative overall implementation scheme are as follows: the existing unidirectional parallel feeding mode is innovated into a bidirectional parallel feeding mode, and the bidirectional parallel feeding is respectively carried out from the direction of a nose fixed thrust plate and the direction of a tail movable compression plate by double feeding holes; the existing one-way dark effluent mode is innovated into a two-way dark effluent mode, and the single effluent hole 29 is used for carrying out dark effluent on two ends in the direction of a nose fixed thrust plate and the direction of a tail movable compression plate; the existing single-function water or air holes are modified into a multifunctional water-air change hole 27 (a PLC controlled electromagnetic valve automatic switching function).
The specific implementation scheme is as follows: the bidirectional inlet and outlet filter plate 2 is a square double-hole bidirectional parallel feeding box-type filter plate 2, has a symmetrical double-sided structure, is a core element of a filter mechanism, and is provided with a frame sealing surface 21, a concave part filter screen point 22, a filter plate bearing platform (also used as a filter cloth support) 23, a feeding and distributing hole end platform 24, a T-shaped feeding and distributing hole 25, a bidirectional feeding hole 26 (a left-right upper corner hole, the filter plate bidirectional feeding hole 26 is the same as a distributing plate bidirectional feeding through hole 26), a multifunctional hole 27 (a right-lower corner washing blow hole, the distributing plate multifunctional hole 27 is the same as the filter plate multifunctional through hole 27), an F-shaped liquid outlet collecting hole 28 and a bidirectional dark current liquid outlet hole 29 (a left-lower corner hole, the filter plate bidirectional dark current liquid outlet hole 29 is the same as the distributing plate bidirectional dark current liquid through hole 29); adopting polypropylene material, using mould to mould press forming and making machine processing; the die of the square filter plate is simpler and more compact than the die of the outer lug filter plate. The main structure is described in detail as follows.
The frame sealing surface 21 is a filter frame sealing plane on the four periphery of the filter plate 2, is matched with the frame sealing surface 21 of the adjacent matching plate 3, and seals the filter chamber 12 after the adjacent filter plate 2, the filter cloth 5 and the matching plate 3 are pressed by using the filter cloth 5 as a sealing piece.
The concave part filtering net points 22 are blind net type round pits, are densely and uniformly distributed on the cavity part (concave part) of the filter plate 2 and are used for increasing the friction force of filter cakes and forming a seepage flow guiding network.
The filter plate pressure-bearing table 23, which is also used as a filter cloth support, is in the shape of a small round table and is uniformly distributed at the cavity part of the filter plate 2 and is used for supporting the filter cloth 5 and transmitting pressure.
The feeding and distributing hole end platform 24 is positioned at the left and right upper corners of the filter plate 2, the plane of the platform 24 is higher than the plane of the filter screen point 22 and lower than the frame sealing surface 21, and the closing-up position of the platform 24 is in a gentle slope shape and is used for arranging the mounting holes of the clamping and distributing device 6 of the T-shaped feeding and distributing hole 25.
The two-way feeding holes 26 are positioned at the left and right upper corners of the filter plate 2; the end surfaces of the two-way feeding holes 26 are flush with the frame sealing surface 21, the hole end lip-shaped sealing rings 7 arranged on the multifunctional material passing matching plate 3 are shared, and a plurality of adjacent two-way feeding holes 26 of the filter plates 2 and the matching plate 3 are communicated with a double-closed two-way feeding total channel (comprising a machine head feeding total channel 15 and a machine tail feeding total channel 11); the double-hole bidirectional feeding is faster and more uniform.
The T-shaped feeding diversion holes 25 are positioned beside the two-way feeding holes 26 at the left and right upper corners of the filter plate 2; the upper end of the T-shaped hole 25 is provided with a mounting hole (positioned at a feeding and distributing hole end platform 24) for clamping the distributor 6, and the filter chamber 12 penetrates through the two sides of the filter plate 2; the lower end of the T-shaped hole 25 is communicated with the feeding main channels 11 and 15; the material is diverted from one of the ports of the T-shaped hole and from two branch ports to the filter chambers on both sides.
The two-way dark current liquid outlet hole 29 and the F-shaped liquid outlet and collecting hole 28 are positioned at the left lower corner of the filter plate 2; the end surfaces of the two-way dark-flow liquid holes 29 are flush with the frame sealing surface 21, the two-way dark-flow liquid holes 29 share the hole end lip-shaped sealing ring 7 arranged on the multifunctional material-passing distributing plate 3, a plurality of adjacent filter plates 2 and the dark-flow liquid holes 29 of the distributing plate 3 are communicated into a closed dark-flow liquid total channel 13, and the F-shaped liquid outlet converging holes 28 are communicated with the dark-flow liquid total channel 13 and the filter chamber 12; the filtrate in the filter chamber is converged to one through a plurality of liquid outlet holes of the F-shaped holes and flows out of the dark effluent total channel.
The multifunctional holes 27 on the filter plate are water or air around the filter plate holes, the filter chamber 12 does not intake air from the Kong Jinshui, and is positioned at the right lower corner of the filter plate 2; a plurality of adjacent filter plates 2 and the multifunctional holes 27 of the distributing plate 3 are communicated into a closed multifunctional main channel 14.
The bidirectional inlet and outlet filter plate 2 of the bidirectional inlet and outlet multifunctional filter mechanism provided by the invention has the advantages of simple and compact square structure, quicker and more uniform double-hole bidirectional parallel feeding, quicker single-hole bidirectional dark effluent and more functions; comprehensively solves the technical problems of slower and uneven unidirectional parallel feeding, slower unidirectional dark effluent and the like, and achieves remarkable technical effects.
Example 2
The bidirectional inlet and outlet multifunctional filtering mechanism mainly comprises parts such as a machine head single-sided filter plate 1 (a stop plate anti-corrosion filter plate), a bidirectional inlet and outlet filter plate 2, a multifunctional material passing distributing plate 3, a machine tail single-sided filter plate 4 (a push plate anti-corrosion filter plate), a complete set of filter cloth 5 (a main filter cloth and an auxiliary filter cloth), a clamping distributor 6 (a clamping distributor on two sides of the filter plate), a hole end lip seal ring 7, a filter plate supporting handle, external pipelines of various inlet and outlet functions and the like. The key points of the innovative overall implementation scheme are as follows: the existing unidirectional parallel feeding mode is innovated into a bidirectional parallel feeding mode, and double feeding holes are respectively fed in a bidirectional parallel mode from the direction of a nose fixed thrust plate and the direction of a tail movable compression plate, so that the feeding speed is improved, the feeding of each filter chamber 12 is more uniform, and the filtering effect and the production efficiency are improved; the existing one-way dark outflow mode is innovated into a two-way dark outflow mode, and the single outflow hole 29 can outflow fluid from the two ends of the machine head fixed thrust plate direction and the machine tail movable compression plate direction, so that the outflow speed and the production efficiency are improved; the existing single-function water or air holes are improved into multifunctional water-air alternate holes (the automatic switching function of a PLC control electromagnetic valve), and the dehydration performance of the filtering mechanism is improved by adopting an advanced blow-drying purification technology; simultaneously, the related thrust plate and the compaction plate inlet and outlet holes are correspondingly improved, and a tail movable high-pressure hose or a movable hard tube is additionally arranged; specific embodiments are described in detail below.
The machine head single-sided filter plate 1 and the machine tail single-sided filter plate 4 are single-sided filter and single-sided anti-corrosion plates, and the single-sided concave part filter surface structure is the same as that of the material passing matching plate 3; the machine head single-sided filter plate 1 is provided with a left upper corner feeding hole 26, a left lower corner bidirectional dark effluent hole 29 and a right lower corner multifunctional hole 27, and is arranged on a thrust plate; the single-sided filter plate 4 of the tail has a feed hole 26 at the upper right corner and a two-way blind outflow hole 29 at the lower left corner, which are arranged on the compacting plates. The functional holes on the thrust plate and the compacting plate correspond to the functional holes on the machine head single-sided filter plate 1 and the machine tail single-sided filter plate 4 respectively.
The multifunctional material passing distributing plate 3 is a matched plate with the same partial structure as the filter plate 2, and mainly comprises a frame sealing surface 21, a concave part filter screen point 22, a filter plate bearing table 23 (also used as a filter cloth support), a bidirectional feeding hole 26 (a left-right upper corner hole), a multifunctional hole 27 (a right-lower corner washing blowing hole), a bidirectional dark effluent hole 29 (a left-lower corner hole), a Y-shaped multifunctional separating hole 30 (a water or gas separating hole), a hole end mosaic sealing groove 31 (a hole end concave mosaic groove) and other structures; is made of polypropylene material, and is formed by compression molding by a die and is machined. The structures and positions of the frame sealing surface 21, the concave part filtering net points 22, the filter plate bearing table 23, the bidirectional feeding holes 26, the multifunctional holes 27 and the bidirectional dark effluent holes 29 of the distributing plate 3 corresponding to the filter plate 2 are respectively the same; the multifunctional holes 27 of the distributing plate 3 are bilaterally symmetrical to the structure of the dark effluent holes 29 of the filter plate 2, are positioned at the left lower corner of the distributing plate 3, and are used for sequentially inputting high-pressure water or gas to carry out back-blowing material, washing, purifying and blow-drying and purifying; the hole end embedded seal groove 31 comprises end face seal grooves of three functional holes of a bidirectional feed hole 26, a bidirectional dark outflow hole 29 and a multifunctional hole 27, and is respectively positioned at the corresponding functional hole ends and is a concave embedded groove corresponding to the lip-shaped sealing ring 7; the multifunctional material passing distributing plate 3 is provided with no T-shaped feeding distributing hole 25 and F-shaped liquid outlet and collecting hole 28, and the material only bypasses and does not enter the filter chamber 12 from the distributing plate 3; the two-way filter plate is used for being matched with the two-way filter plate 2, the adjacent filter plates 2 and the matched plates 3 thereof respectively wrap the filter cloth 5, the concave parts of the double plate cores form a box-shaped filter chamber 12, and materials and filter cakes are carried between the two filter cloths 5.
The complete set of filter cloth 5 comprises single-sided hanging filter cloth with mounting holes for the clamping distributor 6 used for the filter plate 2 and double-sided cape filter cloth used for the distributing plate 3; the single-side hanging type filter cloth is hung on two sides of the two-way in-out filter plate 2 and fixed, and the double-side hanging type filter cloth is hung on two sides of the multifunctional material passing matching plate 3 and fixed; acting as a filter medium and sealing the adjacent filter plates 2 to the frame sealing surface 21 of the mating plate 3.
The clamping and distributing device 6 is a sealing ring compression type clamping and distributing device, is arranged on the T-shaped feeding and distributing hole 25 of the filter plate 2, clamps the filter cloth 5 on the two sides of the filter plate 2 and penetrates through the filter chambers 12 on the two sides of the filter plate 2; has double functions of cloth clamping and material separation on two sides of the filter plate 2.
The hole end lip seal ring 7 comprises an end lip seal ring 7 with three functional holes, namely a bidirectional feeding hole 26, a bidirectional dark outflow hole 29 and a multifunctional hole 27; an automatic sealing ring 7 which is a high-pressure lip shape and is provided with a lip-shaped sealing surface (comprising a lip opening and a lip edge); is arranged in a hole end embedded seal groove 31 of the multifunctional material passing distributing plate 3 and is used for sealing the end surfaces of three functional fluid holes 26, 27 and 29 of the adjacent filter plate 2 and the distributing plate 3 thereof.
The filter plate support handle is an injection molding filter plate handle and is provided with a triangular guide groove and double mounting holes, wherein the triangular guide groove is matched with the positioning guide rail; the filter plate handles are symmetrically arranged at the middle upper parts (above the center of gravity of the filter plate) of the two sides of the filter plate 2 and the distributing plate 3 thereof, and the filter plate support handles support the filter plate 2 and the distributing plate 3 thereof and are arranged on a guide rail on a main beam of the filter press.
Each of the inlet and outlet functions is externally connected with a pipeline, and comprises a fixed stainless steel pipeline, a movable high-pressure hose at the tail of the machine, or a movable hard pipe at the tail of the machine; each inlet and outlet hole on the nose fixed thrust plate is connected by a stainless steel pipeline, and each inlet and outlet hole on the tail movable compacting plate is connected by a high-pressure hose or a movable joint hard pipe, so that a bidirectional inlet and outlet multifunctional filtering mechanism is formed.
And (3) assembling main parts: a plurality of box-type filter plates 2, filter cloth 5 and matching plates 3 are alternately arranged and pressed to form a filter chamber 12; the three bidirectional feed holes 26, the bidirectional dark flow liquid holes 29 and the multifunctional holes 27 of each filter plate 2 and the matched plate 3 are respectively communicated into three closed type machine head and machine tail feed total channels 11 and 15, a bidirectional liquid outlet total channel 13 and a multifunctional total channel 14; the three T-shaped feeding and distributing holes 25, the F-shaped liquid outlet and converging holes 28 and the Y-shaped multifunctional distributing holes 30 are respectively communicated with the three head and tail feeding total channels 11 and 15, the two-way liquid outlet total channel 13, the multifunctional total channel 14 and the filter chamber 12.
The bidirectional inlet and outlet multifunctional filtering mechanism provided by the invention has the advantages of quicker and more uniform double-hole bidirectional parallel feeding, quicker single-hole bidirectional dark effluent, washing and purifying, back-blowing materials, and drying and purifying, and single-hole multifunctional; comprehensively solves the technical problems of slower and uneven unidirectional parallel feeding, slower unidirectional dark effluent, poorer filter cake dehydration performance and the like, and achieves remarkable comprehensive technical effect.
Example 3
The invention provides a high-efficiency large-sized chamber filter press, which is used for providing a bidirectional inlet and outlet multifunctional filter mechanism. The high-efficiency large-sized chamber filter press mainly comprises a frame, a pressing mechanism, a bidirectional inlet and outlet multifunctional filter mechanism (the invention), a pulling plate mechanism, a cloth washing mechanism, a liquid receiving turning plate mechanism, a hydraulic driving mechanism, a PLC program control system and the like. The filter mechanism is a core component of the filter press and mainly comprises parts such as a machine head single-sided filter plate 1, a two-way inlet and outlet filter plate 2, a multifunctional material passing distributing plate 3, a machine tail single-sided filter plate 4, a complete set of filter cloth 5, a cloth clamping distributor 6, a hole end lip-shaped sealing ring 7, a filter plate supporting handle, external pipelines of all inlet and outlet functions and the like. The invention shares the technical part with the prior art, and is based on the 1 st part of the Van-type filter press and the plate-and-frame filter press which are the current standards of the mechanical industry in China: pattern and basic parameters "section 2: technical conditions "section 3: the filter plate is manufactured in JB/T4333-2013.
Assembling and final assembly of the filter mechanism: for convenience of explanation, a thrust plate and a compacting plate closely related to the filtering mechanism are additionally arranged; the machine head single-sided filter plate 1 is arranged on the thrust plate, and the machine tail single-sided filter plate 4 is arranged on the compacting plate; the single-side hanging type filter cloth 5 is hung on two sides of the two-way inlet and outlet filter plate 2 and fixed, the clamping distributor 6 is arranged on a T-shaped feeding and distributing hole 25 of the filter plate 2 to clamp the filter cloth 5 on two sides of the filter plate 2 and penetrates through the filter chambers 12 on two sides of the filter plate 2; the hole end lip-shaped sealing ring 7 is arranged in a hole end embedded sealing groove 31 of the multifunctional material-passing matching plate 3, and the double-sided cloth-covered filter 5 is covered on two sides of the multifunctional material-passing matching plate 3 and fixed; the filter plate handles are symmetrically arranged at the middle upper parts of the two sides of the filter plate 2 and the matched plate 3 (above the center of gravity of the filter plate), and the filter plate support handles support the filter plate 2 and the matched plate 3 are arranged on a guide rail on a main beam of the filter press; the three two-way feeding holes 26, the two-way dark flow discharging holes 29 and the multifunctional holes 27 of the filter plates 2 and the distributing plates 3 are respectively communicated into three closed type machine head and machine tail feeding total channels 11 and 15, a two-way discharging total channel 13 and a multifunctional total channel 14, and the three T-shaped feeding and distributing holes 25, the F-shaped discharging and distributing holes 28 and the Y-shaped multifunctional distributing holes 30 are respectively communicated with the three machine head and machine tail feeding total channels 11 and 15, the two-way discharging total channel 13, the multifunctional total channel 14 and the filter chamber 12; each inlet and outlet hole on the nose fixed thrust plate is connected by a stainless steel pipeline, and each inlet and outlet hole on the tail movable compacting plate is connected by a high-pressure hose or a movable joint hard pipe, so that a bidirectional inlet and outlet multifunctional filtering mechanism is formed.
The low-pressure static filtering process of the high-efficiency large-sized chamber filter press comprises the following steps: the material is pressurized by a feed pump and is simultaneously bi-directionally shunted to the filter chamber 12 (between two filter cloths 5) through the head feed total channel 15 and the tail feed total channel 11 (comprising the T-shaped feed diversion holes 25), low-pressure static filtration is carried out, particles in the material are trapped by the filter cloths 5 to form filter cakes in the filter chamber 12, filtrate passes through the filter cloths 5 and flows out from two ends of the bi-directional liquid outlet total channel 29 of the filter chamber 12 (between the filter plates 2 or the distributing plates 3 and the filter cloths 5), and the filter plates 2 are pulled open to realize gravity cake discharging. The single complete operation cycle working process of the filter press is as follows: the filter plate 2 and the distributing plate 3 thereof compress, feed and filter, turn over the board to connect liquid, wash and purify, blow back materials, blow dry and purify, pull the board to unload cake, wash the filter cloth; through the PLC control system, single operation cycle is automatically completed by one key; intermittent reciprocating circulation work is realized, and solid-liquid separation of batch materials (suspension) is realized.
Comprehensive utilization of the multifunctional aggregate channel 14: the multifunctional main channel 14 is a main channel for washing and purifying, back blowing materials, drying and purifying (alternately using) water inlet or air inlet, and the functions of the multifunctional main channel 14 are automatically converted through a PLC control electromagnetic valve: (1) Washing and purifying, wherein a water pump enters washing liquid into the filter chamber 12 from the multifunctional main channel 14 and the Y-shaped multifunctional split holes 30, and the washing liquid is injected into a filter cake to remove soluble impurities in the filter cake or recover valuable mother liquor retained in the filter cake; (2) Back-blowing materials, namely, high-pressure gas enters the filter chamber 12 from the multifunctional main channel 14 and the Y-shaped multifunctional split holes 30, and back-blowing residual materials remained in the two-way feeding main channels 11 and 15 to the stirring position, so that the purity of filter cakes is prevented from being influenced by slurry; (3) Drying and purifying, wherein high-pressure air enters the filter chamber 12 from the multifunctional main channel 14 and the Y-shaped multifunctional split holes 30, and the air flows through and dries residual washing liquid in the filter cake particle gaps so as to reduce the water content of the filter cake and improve the purity of the filter cake and the recovery rate of mother liquor; the water content of the filter cake is reduced by 3-5% compared with a membrane filter press. If necessary, the multifunctional total channel 14 can also be used as an auxiliary channel for dark effluent liquid, so that the effluent liquid is faster. Water or gas is fed from one orifice of the Y-shaped hole and is split from two branch orifices to the filter chamber.
The high-efficiency large-sized chamber filter press has the advantages of quicker and more uniform double-hole bidirectional parallel feeding, quicker single-hole bidirectional dark effluent and better multifunctional filtering effect of water and gas exchange of a single-hole wheel through repeated experiments; the multifunctional drying and purifying comprehensive utilization device has the advantages that the filtering effect and the production efficiency are improved due to the bidirectional feeding and discharging, the filter cake dehydration performance of the filtering mechanism is improved due to the multifunctional drying and purifying comprehensive utilization, and the device can replace a complex and vulnerable membrane filter press to squeeze and dehydrate, reduce the cost and increase the efficiency; comprehensively solves the comprehensive technical problem of the prior large-scale van-type filtering mechanism; is a development trend of high-efficiency large-sized chamber filter presses.
Claims (4)
1. A bidirectional inlet and outlet multifunctional filtering mechanism comprises a machine head single-sided filter plate, a bidirectional inlet and outlet filter plate, a multifunctional material passing distributing plate, a machine tail single-sided filter plate, a complete set of filter cloth, a cloth clamping distributor, a hole end lip-shaped sealing ring, a filter plate supporting handle and various inlet and outlet functional external pipelines; the method is characterized in that: the machine head single-sided filter plate, the two-way in-out filter plate, the multifunctional material passing distributing plate and the machine tail single-sided filter plate are integrated; the machine head single-sided filter plate, namely a dead plate corrosion-preventing single-sided filter plate, is provided with a left upper corner feeding hole, a left lower corner bidirectional dark effluent hole and a right lower corner multifunctional hole; the machine tail single-sided filter plate is a push plate corrosion-resistant filter plate, namely a single-sided filter plate for preventing the push plate from being corroded, and is provided with a right upper corner feeding hole and a left lower corner bidirectional blind outflow liquid hole; the bidirectional filter plate is of a square double-sided symmetrical structure, the periphery of the bidirectional filter plate is provided with a frame sealing surface, the left and right upper corners of the bidirectional filter plate are provided with feeding diversion hole end platforms lower than the frame sealing surface, and different functional holes are arranged outside four corners of the bidirectional filter plate, wherein the left and right upper corner holes are bidirectional feeding holes and T-shaped feeding diversion holes, the left and right lower corner holes are bidirectional dark effluent holes and F-shaped effluent collection holes, and the right lower corner holes are multifunctional holes; the four corners of the multifunctional material passing distributing plate are provided with different functional holes with parts identical to those of the filter plate, wherein the left upper hole and the right upper hole are bidirectional feeding holes, the left lower corner hole is a dark effluent hole, the right lower corner hole is a multifunctional hole and a Y-shaped multifunctional dividing hole, and the end face of each inlet and outlet hole is provided with a hole end mosaic sealing groove; the complete set of filter cloth comprises single-sided hanging filter cloth with a feed hole and double-sided cape filter cloth for a distributing plate; each of the inlet and outlet functions is externally connected with a pipeline, and comprises a fixed stainless steel pipeline, a movable high-pressure hose at the tail of the machine, or a movable hard pipe at the tail of the machine; the interconnection relationship is: the machine head single-sided filter plate is arranged on the thrust plate, and the machine tail single-sided filter plate is arranged on the compacting plate; the single-side hanging type filter cloth is hung on and fixed on two sides of the two-way inlet and outlet filter plate, and the clamping distributor is arranged on the T-shaped feeding and distributing hole of the filter plate to clamp the filter cloth on two sides of the filter plate and penetrate through the filter chambers on two sides of the filter plate; the hole end lip-shaped sealing ring is arranged in a hole end embedded sealing groove of the multifunctional material-passing matching plate, and the double-sided cloth-covered filter cloth is covered on two sides of the multifunctional material-passing matching plate and fixed; the filter plate handle is symmetrically arranged at the middle upper part of two sides of the filter plate and the distributing plate thereof, and the filter plate support handle supports the filter plate and the distributing plate thereof are arranged on a guide rail on a main beam of the filter press; the three T-shaped feeding and distributing holes, the F-shaped liquid outlet and the Y-shaped multifunctional distributing holes are respectively communicated with the three machine head and machine tail feeding total channels, the two-way liquid outlet total channels and the multifunctional total channels, the two-way liquid outlet total channels, the multifunctional Y-shaped distributing holes are respectively connected with the stainless steel pipe, and the inlet and outlet holes on the machine head fixed thrust plate are connected by using a high-pressure hose or a movable hard-joint pipe, so that a two-way inlet and outlet multifunctional filtering mechanism is formed; has the functions of bidirectional feeding, bidirectional liquid discharging, washing and purifying, material back blowing and drying and purifying.
2. The bi-directional access multifunction filter mechanism of claim 1, wherein the clip distributor is a seal ring packed clip distributor; the hole end lip-shaped sealing ring is a high-pressure lip-shaped automatic sealing ring; the filter plate support handle is an injection molding filter plate handle and is provided with a triangular guide groove and double mounting holes which are matched with the positioning guide rail.
3. The bidirectional inlet and outlet multifunctional filtering mechanism according to claim 1, wherein the multifunctional total channel is a total channel which is used as reverse blowing material, washing, purifying and blow-drying purified inlet high-pressure water or gas alternately and is also used as a dark effluent auxiliary channel; the drying and purifying method comprises the following steps: the high-pressure air enters the filter chamber from the multifunctional holes of the distributing plate, flows upwards through the high-pressure air flow to blow dry the residual washing liquid in the filter cake particle gaps, and then reversely blows the filtrate to the bidirectional dark effluent holes of the filter plate to flow out so as to reduce the water content of the filter cake and improve the purity of the filter cake and the recovery rate of mother liquor, thereby improving the filter cake dehydration performance of a common box type filter mechanism and being capable of replacing the complex and vulnerable membrane filter pressing mechanism to squeeze and dehydrate.
4. A high-efficiency large-sized chamber filter press comprises a frame, a pressing mechanism, a multifunctional filtering mechanism, a pulling plate mechanism, a cloth washing mechanism, a liquid receiving turning plate mechanism, a hydraulic driving mechanism and a PLC program control system; the multifunctional filter mechanism is characterized in that the multifunctional filter mechanism is a bidirectional in-out multifunctional filter mechanism as claimed in any one of claims 1 to 3.
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