CN216963677U - Triangular fluid hole upper ear parallel feeding box type filter plate and corresponding box type filter press - Google Patents

Abstract

The utility model discloses a feeding box type filter plate with triangular fluid holes and upper ears connected in parallel and a corresponding box type filter press; the filter plate comprises an upper ear in a side feeding hole, a bidirectional feeding hole, a triangular multifunctional hole and a triangular dark flow liquid outlet hole; the key points of the innovative scheme are as follows: according to the principle that the area ratio of a regular triangle to an inscribed circle is 1.653, the regular triangle fluid holes are innovated according to the angle, and the area of the filter plate occupied by the fluid holes at four corners is reduced; the triangular ring trapezoid counter bore with the innovative orifice mounting type reduces the area of the filter plate occupied by the sealing groove; a single upper lug hole bidirectional feeding mode is innovated, and the area of a filter plate occupied by a feeding hole is reduced; the filter plate has the characteristics of double maximization of the filtering area of the filter plate and the flow passing area of the fluid holes. The box type filter press is a full-scale large-volume double-inlet and outlet box type filter press, and has advanced double-inlet and outlet performance by using the filter plate; the technical problem that people always desire to solve but can not obtain the successful double maximization of the effective volume of the filter chamber and the flow area of the fluid hole is solved; the effect is remarkable.

Description

Triangular fluid hole upper ear parallel feeding box type filter plate and corresponding box type filter press

Technical Field

The utility model belongs to the technical field of chamber type filter presses (patent classification number B01D 25/12), and relates to a parallel feeding chamber type filter plate.

Background

The filter press is a pressurized filtering device with multiple filtering chambers operated intermittently, and the filtering chambers are formed by concave parts of adjacent filtering plates clamping filtering cloth; the box-type filter press is a filtering device of a filter chamber formed by a plurality of box-type filter plates and filter cloth which are arranged alternately; the cloth washing machine mainly comprises a frame, a pressing mechanism, a filtering mechanism, a plate pulling mechanism, a cloth washing mechanism, a liquid receiving and turning mechanism, a hydraulic driving mechanism, a PLC program control system and the like; is suitable for solid-liquid separation of various suspensions.

The filtering mechanism is a core mechanism of a filter press and mainly comprises a box-type filter plate, filter cloth, a cloth clamping distributor, a fluid hole end face sealing ring, a deviation rectifying elastic gasket, a filter plate supporting handle and the like. Fluid inlet and outlet holes of the box-type filter plate comprise a dark flow liquid outlet hole and multifunctional holes (water inlet or air inlet washing, back blowing and blow drying multifunctional holes), are generally round holes and are usually arranged at four corners of the filter plate or at the ear-striding non-cavity part; the flow rate and production efficiency are directly affected by the flow hole flow area.

The feeding mode of the filter press is mostly series feeding, namely all filter chambers are connected in series, a feeding hole is arranged in a cavity part of a filter plate, and the area (filtering area) of the cavity part and the effective volume of the filter chambers are influenced; parallel feeding is an advanced feeding mode, the feeding holes of the filter chambers are positioned at the left upper corner and the right upper corner of the filter plate or the ear-crossing non-cavity part, and materials pass through the feeding main channel of the filter chambers and are simultaneously shunted to the filter chambers, so that the feeding pressure of the filter chambers is balanced, the feeding is uniform, the feeding and the liquid discharging are faster, and the filtering effect and the production efficiency are improved.

The existing parallel feeding box type filter plate has the following defects: 1. the fluid inlet and outlet holes are generally round holes and are arranged at non-cavity parts at four corners of the filter plate, so that the occupied area of the filter plate is large, and the filtering area of the filter plate and the effective volume of a filter chamber are influenced; 2. the single-hole one-way feed hole has low efficiency; the double-hole one-way feeding holes are arranged at the non-cavity parts at the left upper corner and the right upper corner of the filter plate, so that the occupied area of the filter plate is large, and the filtering area and the effective volume of a filter chamber are influenced; 3. the fluid holes and the feeding holes are arranged at the outer cross lug parts at four corners of the filter plate, and the four outer cross lug parts enlarge a filter plate die, so that the difficulty in manufacturing the filter plate is increased; 4. the fluid hole end face sealing ring is a hole end embedded sealing ring or an O-shaped sealing ring, and the corresponding sealing groove occupies a larger area of the filter plate, so that the filtering area of the filter plate and the effective volume of the filter chamber are influenced. Therefore, in a limited space, the flow hole flow area and the filter area of the filter plate are always one spear, and the simultaneous maximization of the flow hole flow area and the filter area of the filter plate is a technical problem which is always desired to be solved but is always unsuccessful.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome various defects of the existing parallel feeding chamber type filter plate, comprehensively solves various technical problems that fluid circular holes at four corners of the filter plate and hole end sealing grooves of the filter plate occupy larger area of the filter plate, single-hole one-way feeding holes have low efficiency, double-hole one-way feeding holes occupy larger area of the filter plate and the like, and provides a triangular fluid hole upper ear parallel feeding chamber type filter plate and a corresponding chamber type filter press which simultaneously maximize the fluid hole overflowing area and the filter area of the filter plate. Triangular fluid holes refer to regular triangular fluid holes with proper angles at four corners of a filter plate, feeding is carried out in parallel on an upper ear, feeding is carried out in parallel on a single hole of the upper ear in the filter plate in a two-way manner, and a chamber type filter press is a full-scale large-volume double-inlet and outlet chamber type filter press (the name is limited by the number of words of the subject name and is used for short).

The utility model solves the problems of the prior art and adopts the innovative technical scheme that: a triangular fluid hole upper ear parallel feeding box type filter plate (hereinafter referred to as triangular hole filter plate), the key point of the general technical scheme is as follows: compared with the prior art, the innovative overall structure has the prominent substantive characteristics that: the filter plate breaks through the mode that the circular fluid holes at the four corners of the existing filter plate enter and exit, and the circular fluid holes at the four corners of the existing filter plate are ingeniously innovated into regular triangle fluid holes due to the angle, so that the flow passing area of the fluid holes is enlarged in a limited space, the area of the filter plate occupied by the fluid holes is correspondingly reduced, and the filtering area of the filter plate and the effective volume of a filter chamber are increased; the traditional fluid hole end embedded sealing groove is improved into an orifice mounting type triangular ring trapezoidal (dovetail-shaped) counter bore (a matched triangular trapezoidal double-lip sealing ring is used), so that the area of a filter plate occupied by the sealing groove is reduced, and the high-pressure automatic sealing performance is improved; the existing double-hole one-way feeding mode is improved into a single-lug two-way feeding mode, the area of a filter plate occupied by a feeding hole is reduced, and the feeding uniformity is improved; therefore, the technical problems that the area of the filter plate occupied by the four-corner fluid circular holes and the hole end sealing grooves of the traditional filter plate is large, the efficiency of the single-hole one-way feeding hole is low, the area of the filter plate occupied by the double-hole one-way feeding hole is large and the like are comprehensively solved, and the technical bias that the filter area of the filter plate and the flow area of the fluid holes cannot be complete is overcome.

The overall design scheme of the triangular hole filter plate is as follows: the whole body is a square and single middle and upper ear bidirectional parallel feeding box type filter plate, and the double-side structure is symmetrical; the main structure is as follows: frame sealing surface, concave part filter screen point, board core pressure-bearing platform (5 filter cloth supports concurrently), the middle and upper ear in the feed port, two-way feed port (middle and upper ear macropore), T type feeding reposition of redundant personnel hole, feeding reposition of redundant personnel hole end platform, triangle-shaped multi-functional hole (upper left and right corner is intake or gas pocket), triangle-shaped circle trapezoidal counter bore, the multi-functional branch hole of Y type, triangle-shaped hidden flow goes out liquid hole (lower right corner hole), F type play liquid convergent aperture, sealing washer trapezoidal counter bore (fluid drill way counter bore), rectifying bullet pad counter bore (upper left and right corner counter bore), handle installation screw, filter frame slope.

The specific design scheme of the novel structure of the triangular hole filter plate is as follows: the triangular multifunctional holes are regular triangular holes for water inlet or air inlet washing, back blowing and blow drying and are positioned at the non-cavity parts at the left upper corner and the right upper corner of the filter plate; the triangular dark flow liquid outlet holes are regular triangular dark flow liquid outlet holes and are positioned at the left lower corner and the right lower corner of the filter plate; the bidirectional feed hole is a bidirectional parallel feed large round hole (the single-hole bidirectional feed hole is slightly larger than the existing double-hole unidirectional feed hole), the end surface of the feed hole is flush with the sealing surface of the filter frame, and the feed hole is positioned at the upper ear of the feed hole; the sealing ring trapezoid counter bore corresponds to a matched orifice mounting trapezoid (dovetail-shaped) double-lip sealing ring structure, the diameter of the counter bore is equal to the outer diameter of the corresponding sealing ring centering positioning ring, the depth of the counter bore is 3/4 of the thickness of the sealing ring, and the counter bore is positioned at a bidirectional feeding orifice and is communicated with a feeding hole at no interval; the triangular ring trapezoidal counter bore corresponds to a matched orifice mounting type regular triangular trapezoidal double-lip sealing ring structure, the side length of the regular triangular counter bore is equal to that of the corresponding sealing ring centering positioning ring, and the depth of the counter bore is 3/4 of the thickness of the sealing ring; the triangular fluid hole is positioned and communicated with the fluid hole without spacing; the triangular-hole filter plates, the plurality of filter plates and the filter cloth are arranged alternately and tightly to form a filter chamber, and the bidirectional feed holes, the triangular blind-flow liquid outlet holes and the triangular multifunctional holes of the plurality of filter plates are respectively communicated into a closed bidirectional feed main channel, a double liquid outlet main channel and a double multifunctional main channel; the T-shaped feeding flow distribution hole, the Y-shaped multifunctional flow distribution hole and the F-shaped liquid outlet flow gathering hole are respectively communicated with the corresponding main channel and the corresponding filter chamber. The double-inlet and outlet double-filter-plate filter has the characteristics of both attractive filter area and fluid hole flow area and double maximization, and has advanced double-inlet and outlet performance, namely a single-hole bidirectional feeding mode and performance, a double-hole unidirectional water or gas inlet mode and a double-hole unidirectional dark liquid outlet mode and performance, the inlet and outlet speed is increased unprecedentedly, and the production efficiency is improved.

The flow increasing and capacity expanding principle of the triangular fluid hole is as follows: according to the principle that the area ratio of a regular triangle to an inscribed circle is 9/√ 3 pi (1.653), under the condition that the occupied space of the circular fluid holes at the four corners of the filter plate is not changed, the space of the four corners is fully utilized to be suitable for the corner, the existing circular fluid holes are Innovative regular triangle fluid holes of the inscribed circle, and the flow area of the fluid holes is effectively enlarged; under the condition that the flow area of fluid holes at four corners of the filter plate is not changed, the regular triangle fluid holes are used for replacing circular fluid holes, so that the area of the filter plate occupied by the fluid holes is correspondingly reduced, and the filtering area of the filter plate and the effective volume of a filter chamber are increased; meanwhile, the conventional fluid hole end embedded sealing groove is improved into an orifice mounting type triangular ring trapezoidal counter bore (a matched triangular trapezoidal double-lip sealing ring is used), so that the area of the filter plate occupied by the sealing groove is reduced, and the filtering area of the filter plate and the effective volume of a filter chamber are further enlarged.

The single-hole bidirectional parallel feeding principle is as follows: because the feeding filter plates are connected in parallel, the filter plates are provided with bidirectional feeding holes, T-shaped feeding shunting holes, trapezoidal counter bores of orifice sealing rings and frame sealing surfaces; the bidirectional feed hole is positioned at a non-cavity part of an upper ear in the filter plate (the serial feed hole is positioned at a cavity part in the middle of the filter plate), the end surface of each fluid hole is flush with the sealing surface of the filter frame, and the end surfaces of the adjacent fluid holes of the filter plate are respectively sealed by a ladder-shaped double-lip sealing ring; after the adjacent parallel feeding filter plates are compacted, the concave parts of the adjacent parallel feeding filter plates form a group of parallel feeding filter chambers, the bidirectional feeding holes of the multiple filter plates are communicated into a closed bidirectional feeding main channel, and the T-shaped feeding branch holes of the filter plates are communicated with the feeding main channel and the filter chambers. The materials pass through the main feeding channel in the single direction of the fixed thrust plate at the head and the two directions of the movable pressing plate at the tail and are simultaneously distributed to the filter chambers (multi-chamber parallel feeding), so that the feeding pressure of the filter chambers is balanced, the feeding is uniform, the feeding and the liquid discharging are faster, and the filtering effect and the production efficiency are improved.

The utility model also provides a chamber filter press which is a full-scale large-volume double-inlet and outlet chamber filter press and uses the triangular fluid hole upper ear parallel connection feeding chamber filter plate provided by the utility model. The box-type filter press mainly comprises a frame, a pressing mechanism, a filtering mechanism, a triangular hole filter plate, a plate pulling mechanism, a cloth washing mechanism, a liquid receiving and turning mechanism, a hydraulic driving mechanism, a PLC program control system and the like. Has advanced double inlet and outlet performance, namely a mode and performance of single-hole bidirectional feeding, double-hole unidirectional water inlet or gas and double-hole unidirectional dark effluent.

The feeding chamber type filter plate with the triangular fluid holes and the upper lugs connected in parallel and the corresponding chamber type filter press have the advantages that the triangular fluid holes and the trapezoidal counter bores for sealing the orifices occupy the minimum area, the maximum filtering area, the high double inlet and outlet speed and the high production efficiency; the beneficial effects are that: 1. through the design of minimizing the occupied area of the fluid holes, the fluid holes with the regular triangle shape are innovated to replace the fluid holes with the circular fluid holes at the four corners of the filter plate, so that the filtering area of the filter plate and the effective volume of a filter chamber are creatively improved; 2. through the optimized design of the fluid hole end sealing groove, the orifice triangular ring trapezoidal counter bore is innovated to replace a hole end embedded sealing groove, the area of a filter plate occupied by the sealing groove is fully reduced, a matched triangular trapezoidal double-lip sealing ring is used, and the high-pressure automatic sealing performance is improved; 3. through the potential improvement design of the feeding holes, a single-lug-hole bidirectional feeding mode is innovated, the area of the filter plate occupied by the feeding holes is reduced, the filtering area of the filter plate and the effective volume of a filter chamber are improved, and the uniformity and the filtering effect of feeding are improved; 4. by adopting a double-inlet and outlet mode, the inlet and outlet speed is increased, the production efficiency is improved, once any inlet and outlet pipeline fails, the online rush repair can be carried out without stopping production, and the fault loss is reduced; fills the blank of the triangular fluid hole box type filter plate in China.

Drawings

FIG. 1 is a schematic view of a triangular fluid hole upper ear parallel connection feeding box type filter plate according to the present invention.

FIG. 2 is a cross-sectional view A-A of the upper ear of a triangular fluid hole parallel connection feeding box type filter plate.

FIG. 3 is a cross-sectional view B-B of the left and right lower corners of a triangular fluid hole upper ear parallel connection feeding box type filter plate (the cross-sectional views of the left and right upper corners are the same).

Reference numerals:

1-frame sealing surface (filter frame sealing surface), 2-concave filtration mesh points, 3-plate core bearing table (also supporting 5 filter cloth), 4-upper ear in feed hole, 5-bidirectional feed hole (upper ear large hole), 6-seal ring ladder-shaped counter bore (feed orifice counter bore), 7-T-shaped feed shunt hole, 8-feed shunt hole end platform, 9-rectification spring mat counter bore, 10-triangle multifunctional hole (left upper corner, right upper corner feed water or air hole), 11-triangle ring ladder-shaped counter bore (fluid orifice counter bore), 12-Y-shaped multifunctional shunt hole (Y-shaped water or air shunt hole), 13-F-shaped outlet flow convergence hole, 14-triangle-shaped blind outlet flow hole (left lower corner hole, right lower corner hole), 15-handle installation screw hole and 16-filter frame slope side.

Detailed Description

The technical solution in the embodiment of the present invention is described below with reference to the attached drawings in the embodiment of the present invention in which the triangular fluid hole upper ear is connected in parallel with the feeding chamber filter plate and the corresponding chamber filter press, and it is obvious that the described embodiment is only a part of the preferred embodiment of the present invention, but not all embodiments; based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts, such as the chamber filter plate with the same triangular fluid hole and the triangular ring ladder-shaped counter bore, and different positions of the single-lug bidirectional feeding hole, belong to the protection scope of the present invention.

Example 1

A triangular fluid hole upper ear parallel feeding box type filter plate (triangular hole filter plate for short) is characterized in that: the method breaks through the inlet and outlet mode of the circular fluid holes at the four corners of the existing filter plate, ingeniously innovatively creates the circular fluid holes at the four corners of the existing filter plate into regular triangle fluid holes 10 and 14 due to corner control, enlarges the flow area of the fluid holes in a limited space, correspondingly reduces the area of the filter plate occupied by the fluid holes, and increases the filtering area of the filter plate and the effective volume of a filter chamber; the traditional fluid hole end embedded sealing groove is improved into an orifice mounting type triangular ring trapezoidal (dovetail-shaped) counter bore 11 (a matched triangular trapezoidal double-lip sealing ring is used), so that the area of a filter plate occupied by the sealing groove is reduced, and the high-pressure automatic sealing performance is improved; the existing double-hole one-way feeding mode is improved into a single-lug-hole two-way feeding mode, the area of a filter plate occupied by the feeding hole is reduced, and the feeding uniformity is improved.

The specific implementation scheme is as follows: the whole body is a square and single middle and upper ear bidirectional parallel feeding box type filter plate, and the double-side structure is symmetrical; the main structure is as follows: the structure comprises a frame sealing surface 1, a concave part filtering screen point 2, a plate core pressure bearing table (which is also supported by 5 filter cloths) 3, an upper lug 4 in a feed hole, a bidirectional feed hole (an upper lug large hole) 5, a sealing ring ladder-shaped counter bore (a feed hole counter bore) 6, a T-shaped feed shunting hole 7, a feed shunting hole end platform 8, a deviation rectifying spring cushion counter bore (a left upper corner counter bore and a right upper corner counter bore) 9, a triangular multifunctional hole (a left upper corner water inlet or air hole) 10, a triangular ring ladder-shaped counter bore 11, a Y-shaped multifunctional shunting hole 12, an F-shaped liquid outlet converging hole 13, a triangular blind liquid outlet hole (a left lower corner hole and a right lower corner hole) 14, a handle mounting screw hole 15 and a filter frame slope 16; adopting polypropylene material, moulding the filter plate blank and machining to obtain a finished product; the detailed description is as follows.

The filter frame sealing surface 1 is a filter frame sealing plane around the filter plate, is matched with the adjacent filter plate frame sealing surface 1, uses filter cloth as a sealing element, and seals the filter chamber after the adjacent filter plate and the filter cloth are compressed.

The concave filtering net points 2 are blind net type round hemp points and are densely and uniformly distributed in a cavity part (plate core) of the filter plate and used for increasing the friction force of a filter cake and forming a seepage flow guide network.

The plate core pressure bearing platforms 3 are in a small circular truncated cone shape and are uniformly distributed in a cavity part (plate core) of the filter plate, and the number of the pressure bearing platforms is 5-9 according to the size of the filter plate and is used for transmitting pressure and supporting filter cloth.

The feeding hole middle and upper ear 4, namely the feeding hole cross ear added on the middle and upper part of the filter plate, is a semicircle and a connecting arc and is used for setting a bidirectional feeding hole (middle and upper ear big hole) 5 so as to reduce the area of the cavity of the filter plate occupied by the larger feeding hole, increase the effective volume of the filter chamber of the filter plate filtering area and improve the filtering capacity and the production efficiency. The single-span-lug filter plate die is smaller than the double-span-lug die, and the filter plate is easier to manufacture.

The two-way feeding holes 5 are single-hole two-way parallel feeding holes, the upper lugs 4 are positioned in the feeding holes of the filter plates, the end surfaces of the feeding holes 5 are flush with the filter frame sealing surface 1, and the two-way feeding holes 5 of a plurality of adjacent filter plates are communicated to form a closed two-way feeding total channel. The single-hole bidirectional feeding hole is slightly larger than the existing double-hole unidirectional feeding hole, so that the area of an outer span lug or hole occupying the filter plate is reduced, and the feeding effects of the two holes are the same.

The sealing ring trapezoid counter bore 6 is a trapezoid counter bore (dovetail shape) corresponding to the orifice mounting trapezoid double-lip sealing ring, the diameter of the counter bore is equal to the outer diameter of the corresponding sealing ring centering positioning ring, the depth of the counter bore is 3/4 of the thickness of the sealing ring, the counter bore is positioned at the opening of the bidirectional feed hole 5 and is communicated with the feed hole 5 without intervals, so that the area of the sealing groove occupying a filter plate is reduced, and the effective volume of a filter chamber of the filter plate is correspondingly increased; used for installing a matched ladder-shaped double-lip sealing ring.

The T-shaped feeding shunting hole 7 is positioned below the bidirectional feeding hole 5 of the filter plate; the upper end of the T-shaped hole 7 is provided with a cloth clamping distributor mounting hole (positioned on a platform at the end of the feeding shunting hole) which penetrates through the filter chambers on the two sides of the filter plate; the lower end of the T-shaped hole 7 is communicated with a main feeding channel, and materials enter from one hole and are shunted to the filter chambers on two sides from two branch holes.

The feeding distributing hole end platform 8 is located below the bidirectional feeding hole 5 of the filter plate, the plane of the platform 8 is higher than the plane of the filtering mesh point 2 and lower than the frame sealing surface 1, and the closing opening of the platform 8 is in a gentle slope shape and is used for arranging a cloth clamping distributor mounting hole of the T-shaped feeding distributing hole.

The deviation rectifying elastic pad counter bore 9 is a circular counter bore, the aperture of the counter bore is 60mm, the outer diameter of the deviation rectifying elastic pad is equal to the outer diameter of the deviation rectifying elastic pad (the deviation rectifying elastic pad does not fall off), the counter bore is 5mm deep, and the counter bore is symmetrically located in the non-cavity part at the left upper corner and the right upper corner of the filter plate and used for installing the pull plate deviation rectifying elastic pad.

The triangular multifunctional holes 10 are double-hole one-way water inlet or air inlet washing, back blowing and blow drying multifunctional holes, are positioned at non-cavity parts at the left upper corner and the right upper corner of the filter plate, the end surfaces of the multifunctional holes 10 are flush with the filter frame sealing surface 1, and the multifunctional holes of a plurality of adjacent filter plates are communicated to form a multifunctional assembly channel; the double holes feed water or air more quickly.

The triangular ring trapezoidal counter bore 11 is a trapezoidal (dovetail) counter bore corresponding to the orifice mounting type regular triangular trapezoidal double-lip sealing ring, the side length of the regular triangular counter bore 11 is equal to that of the corresponding sealing ring centering positioning ring, and the depth of the counter bore 11 is 3/4 of the thickness of the sealing ring; the triangular fluid holes 10 and 14 are communicated with the fluid holes 10 and 14 at intervals (the counter bores are connected with the fluid holes) so as to reduce the area of the filter plate occupied by the sealing grooves and correspondingly increase the effective volume of a filter chamber of the filter plate in the filter area; used for installing a matched triangular trapezoidal double-lip sealing ring.

The Y-shaped multifunctional branch hole 12 is positioned beside the double multifunctional holes 10, the upper end of the Y-shaped hole 12 is communicated with the filter chamber, the lower end of the Y-shaped hole 12 is communicated with the multifunctional main channel, and water or gas enters from one hole opening and is divided into the filter chamber from two branch hole openings.

The F-shaped liquid outlet converging hole 13 is positioned beside the double dark liquid outlet holes 14, the upper end of the F-shaped hole 13 is communicated with the filter chamber, the lower end of the F-shaped hole 13 is communicated with the dark liquid outlet main channel, and the filtrate in the filter chamber converges to one hole opening through a plurality of liquid outlet hole openings and flows out from the dark liquid outlet main channel.

The triangular dark flow liquid outlet holes 14 are double-hole one-way dark flow liquid outlet holes and are positioned at the left lower corner and the right lower corner of the filter plate, the end surfaces of the dark flow liquid outlet holes 14 are flush with the filter frame sealing surface 1, and the dark flow liquid outlet holes of a plurality of adjacent filter plates are communicated to form a double-dark flow liquid outlet main channel; the double holes can discharge liquid more quickly.

The handle mounting screw holes 15 are double screw holes corresponding to the filter plate handle mounting holes and are symmetrically positioned at the middle upper parts (above the gravity center of the filter plate 1) of two sides of the filter plate, so that the filter plate handle is mounted, and the stability of the filter plate after being mounted is guaranteed.

The filter frame slope 16 is a slope which is used for smoothly connecting the filter frame sealing surface 1 and the concave part filter screen point 2 plane, the filter frame slope 16 enables the periphery of the plate core to be thickened correspondingly, the compression resistance of the filter plate is enhanced, and the fracture probability of the filter plate is effectively reduced.

The triangular fluid hole upper ear parallel connection feeding box type filter plate provided by the utility model has the advantages that the triangular fluid holes 10 and 14 and the trapezoidal counter bore 11 for sealing the orifice occupy the minimum area, the maximum filtering area, the high double inlet and outlet speed and the high production efficiency; the technical problems that the area of the filter plate occupied by the four-corner fluid circular holes and the hole end sealing grooves of the traditional filter plate is large, the efficiency of a single-hole one-way feeding hole is low, the area of the filter plate occupied by a double-hole one-way feeding hole is large and the like are comprehensively solved, and the technical bias that the filtering area of the filter plate and the flow area of fluid holes cannot be doubled is overcome; the filter plate has the characteristics of double maximization of the filter area of the filter plate and the flow area of the fluid hole, and has advanced double inlet and outlet performance, namely a single-hole bidirectional feeding mode, a double-hole unidirectional water or gas inlet mode, a double-hole unidirectional dark effluent mode and performance.

Example 2

The utility model relates to a chamber filter press, in particular to a full-scale large-volume double-inlet and outlet chamber filter press. The box-type filter press mainly comprises a frame, a pressing mechanism, a filtering mechanism, a triangular hole filter plate, a plate pulling mechanism, a cloth washing mechanism, a liquid receiving and turning mechanism, a hydraulic driving mechanism, a PLC program control system and the like. The filtering mechanism is a core mechanism of the filter press and mainly comprises a box-type filter plate, filter cloth, a cloth clamping distributor, a fluid hole end face sealing ring, a deviation rectifying elastic gasket, a filter plate supporting handle, a head and tail anti-corrosion plate, external pipelines of all fluid holes and the like; the box-type filter plate is a key element of the filter mechanism. The utility model shares the technical part with the prior art, according to the current standard of China' Van filter press and plate-and-frame filter press part 1: type and basic parameters section 2: technical Condition section 3: filter plate (JB/T4333-2013).

The adaptability of the filtering mechanism is improved: (1) in order to make the external pipelines of each fluid hole 10 and 14 adapt to the triangular fluid hole, the holes corresponding to the head and tail anti-corrosion plates and the triangular hole filter plates are improved as follows: the round hole is connected outside the triangular fluid hole, so that fluid inlet and outlet resistance is avoided. (2) In order to enable the external pipeline of the feed hole 5 to adapt to bidirectional feeding, a feed hole at the end of a tail pressing plate is added and is connected by a movable high-pressure hose or a movable joint hard pipe.

Assembling and final assembling of the filtering mechanism: for convenience of explanation, a thrust plate and a compression plate closely related to the filtering mechanism are additionally arranged; the head and tail anti-corrosion plates are respectively arranged on the machine head thrust plate and the machine tail pressing plate; the filter cloth is hung on two sides of the filter plate and fixed, the cloth clamping distributor is arranged on the T-shaped feeding and shunting hole 7 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 trapezoidal double-lip sealing rings are respectively arranged in the corresponding sealing ring trapezoidal counter bore 6 and the triangular ring trapezoidal counter bore 11; the pulling plate deviation rectifying elastic cushion is arranged in a deviation rectifying elastic cushion counter bore 9; the filter plate handles are symmetrically arranged in handle mounting screw holes 15 at two sides of the filter plate (arranged above the gravity center of the filter plate), and the filter plate support handles support the filter plate to be arranged on a guide rail on a main beam of the filter press; a plurality of box-type filter plates and filter cloth are arranged alternately and tightly pressed to form a filter chamber; three inlet and outlet holes, namely a bidirectional feeding hole 5, a triangular multifunctional hole 10 and a triangular undercurrent liquid outlet hole 14, of each filter plate are respectively communicated to form three closed bidirectional feeding main channels, two liquid outlet main channels and two multifunctional main channels; three shunting and converging holes, namely a T-shaped feeding shunting hole 7, a Y-shaped multifunctional shunting hole 12 and an F-shaped liquid outlet converging hole 13 are respectively communicated with three inlet and outlet main channels, namely a bidirectional feeding main channel, a double liquid outlet main channel and a double multifunctional main channel, and a filter chamber; the inlet and outlet holes 5, 10 and 14 on the fixed thrust plate of the machine head are connected by stainless steel pipelines, and the inlet and outlet holes 5 on the movable pressing plate of the machine tail are connected by high-pressure hoses or movable joint hard pipes to form a large-volume double-inlet and outlet filtering mechanism.

The low-pressure static filtering process of the filter press comprises the following steps: the material is pressurized by a feed pump and is input into a filter chamber (between two pieces of filter cloth) in parallel through a bidirectional feed hole to perform low-pressure static filtration, the filter cloth intercepts particles in the material to form a filter cake in the filter chamber, filtrate passes through the filter cloth and flows out of a liquid outlet hole of the filter chamber (between the filter plate and the filter cloth), and the filter plate is pulled open to realize gravity cake discharge. The single complete operation cycle working process of the filter press comprises the following steps: the filter plate 1 is compacted, fed and filtered, the plate is turned over to receive liquid, the washing and purification, the material is blown back, the blowing and purification, the plate pulling and cake discharging are carried out, and the filter cloth is cleaned; through a PLC control system, single operation cycle is automatically completed by one key; the intermittent reciprocating circulation work realizes the solid-liquid separation of batch materials (suspension).

Through repeated experiments, the box-type filter press has the advantages of minimized occupied area of the triangular fluid holes 10 and 14 and the port sealing ladder-shaped counter bores 6 and 11 thereof, maximized filtering area, high double inlet and outlet speed and high production efficiency; the beneficial effects are that: 1. through the design of minimizing the occupied area of the fluid holes 10 and 14, the fluid holes 10 and 14 in the shape of regular triangles are innovated to replace fluid holes at four corners of the filter plate, so that the filtering area of the filter plate and the effective volume of a filter chamber are creatively improved; 2. through the optimized design of the sealing grooves at the ends of the fluid holes 10 and 14, the triangular ring trapezoidal counter bore 11 at the orifice is innovated to replace a hole-end embedded sealing groove, the area of the filter plate occupied by the sealing groove is fully reduced, a matched triangular trapezoidal double-lip sealing ring is used, and the high-pressure automatic sealing performance is improved; 3. through the potential improvement design of the feeding hole 5, a single-lug hole bidirectional feeding mode is innovated, the area of the filter plate occupied by the feeding hole 5 is reduced, the filtering area of the filter plate and the effective volume of a filter chamber are improved, and the uniformity and the filtering effect of feeding are improved; 4. the double-inlet and outlet mode is adopted, so that the inlet and outlet speed is increased, and the production efficiency is improved; the technical problem that people are eagerly solved but fail to obtain successful double maximization of the filtering area of the filter plate and the flow area of the fluid hole all the time is solved, and the development trend of the high-efficiency box type filter press is achieved.

Claims (3)

1. A triangular fluid hole upper ear parallel connection feeding box type filter plate comprises a frame sealing surface, concave part filtering net points, a plate core pressure bearing table, upper ears in feeding holes, a bidirectional feeding hole, T-shaped feeding shunting holes, a feeding shunting hole end platform, triangular multifunctional holes, triangular ring trapezoid counter bores, Y-shaped multifunctional shunting holes, triangular blind flow liquid outlet holes, F-shaped liquid outlet converging holes, sealing ring trapezoid counter bores, deviation rectifying elastic cushion counter bores, handle mounting screw holes and a filter frame slope side; the method is characterized in that: the triangular multifunctional holes are regular triangular holes for water inlet or air inlet washing, back blowing and blow drying and are positioned at non-cavity parts at the left upper corner and the right upper corner of the filter plate; the triangular dark flow liquid outlet holes are regular triangular dark flow liquid outlet holes and are positioned at the left lower corner and the right lower corner of the filter plate; the triangular ring trapezoidal counter bore corresponds to a matched orifice mounting type regular triangular trapezoidal double-lip sealing ring structure, the side length of the regular triangular counter bore is equal to that of the corresponding sealing ring centering positioning ring, and the depth of the counter bore is 3/4 of the thickness of the sealing ring; the triangular fluid hole is positioned and communicated with the fluid hole without interval; the parallel feeding box type filter plates are characterized in that a plurality of filter plates and filter cloth are arranged alternately and tightly pressed to form a filter chamber, and the bidirectional feeding holes, the triangular blind flow liquid outlet holes and the triangular multifunctional holes of the plurality of filter plates are respectively communicated into a closed bidirectional feeding main channel, a double liquid outlet main channel and a double multifunctional main channel; the T-shaped feeding shunting hole, the Y-shaped multifunctional shunting hole and the F-shaped liquid outlet converging hole are respectively communicated with the corresponding main channel and the filter chamber; the filter area of the filter plate and the flow area of the fluid holes can be maximized, and the filter plate has double inlet and outlet performance, namely a single-hole bidirectional feeding mode, a double-hole unidirectional water inlet mode or a double-hole unidirectional dark flow outlet mode and performance.

2. The triangular fluid aperture upper ear parallel feed box filter plate of claim 1, wherein: the bidirectional feed hole is a bidirectional parallel feed big round hole, the end face of the feed hole is flush with the sealing surface of the filter frame, and the feed hole is positioned at the upper ear of the feed hole; the sealing ring trapezoid counter bore corresponds to a matched orifice mounting type trapezoid double-lip sealing ring structure, the diameter of the counter bore is equal to the outer diameter of the corresponding sealing ring centering positioning ring, the depth of the counter bore is 3/4 of the thickness of the sealing ring, the counter bore is located in a bidirectional feeding orifice and is communicated with the feeding hole without intervals.

3. A chamber type filter press, namely a large-volume double-inlet-outlet chamber type filter press, comprises a frame, a pressing mechanism, a filtering mechanism, a parallel feeding filter plate, a plate pulling mechanism, a cloth washing mechanism, a liquid receiving and plate turning mechanism, a hydraulic driving mechanism and a PLC program control system; the parallel feeding filter plate is a triangular fluid hole upper ear parallel feeding chamber type filter plate according to any one of claims 1-2.

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