CN113413650A

CN113413650A - Plate-frame filter press

Info

Publication number: CN113413650A
Application number: CN202110781249.0A
Authority: CN
Inventors: 苏庆丰; 袁国龙; 李志军; 楚静波; 张海清; 姚晓萍
Original assignee: Tianchi Pharmaceutical Co ltd
Current assignee: Puyang Tianjian Biotechnology Co ltd
Priority date: 2021-07-10
Filing date: 2021-07-10
Publication date: 2021-09-21
Anticipated expiration: 2041-07-10
Also published as: CN113413650B

Abstract

The invention relates to the field of sewage treatment devices, in particular to a plate and frame filter press. The extension board that includes two bilateral symmetry settings, through defeated silo fixed connection between two extension boards, be fixed with the guide rail of two longitudinal symmetries between two extension boards of defeated silo top, it is provided with the left slide to slide between two guide rails, the extension board on right side is fixed with the right side on the terminal surface of left slide, be provided with a plurality of sheet frames between left slide and the right side fixed board, the left side slide is decided the board with the right side and is tightly supported a plurality of sheet frames, adjacent two sheet frame sealing connection, left side slide and leftmost sheet frame sealing connection, the board is decided on the right side and rightmost board frame sealing connection, sheet frame and guide rail sliding fit. According to the invention, the filter cake can be further extruded after the sewage is subjected to filter pressing, the water content in the filter cake can be reduced, the filter cake can be conveniently treated, the filter cake can be completely separated, the filter screen can be conveniently cleaned after the filter cake is separated, and the filter pressing efficiency can be improved.

Description

Plate-frame filter press

Technical Field

The invention relates to the field of sewage treatment devices, in particular to a plate and frame filter press.

Background

Plate and frame filters are well established dewatering equipment commonly used for the separation of solids from liquids. Compared with other solid-liquid separation equipment, the mud cake filtered by the filter press has higher solid content and excellent separation effect.

The filter press is characterized in that filter plates and filter frames with filtrate passages are arranged in the filter press, filter cloth is clamped between each group of filter plates and filter frames, the filter plates and the filter frames are pressed by pressing ends, a filter pressing chamber is formed between each filter plate and the corresponding filter plate, sludge flows in from a feed inlet, water is discharged from a filtrate outlet through the corresponding filter plate, mud cakes are accumulated on the filter cloth in the filter frame, the mud cakes are easily peeled off after the filter plates and the filter frames 5 are loosened, the plate-and-frame filter press is simple in structure, easy and stable to operate, flexible in filter area selection range, small in unit filter area occupation, large in filter driving force, low in water content of obtained filter cakes, and high in adaptability to materials, and therefore the plate-and-frame filter press is widely applied to the fields of chemical industry, light industry, petroleum, pharmacy, food, resource development, metallurgy coal, national defense industry, environmental protection and the like.

The existing plate-and-frame filter press can only remove the water content of the sludge to about 80 percent. The mud cake has high water content, fluid property, high disposal difficulty and high cost, and the filter cake is easy to block after being separated, so that the cleaning process is troublesome.

Disclosure of Invention

The invention aims to solve the technical problems that the plate and frame filter press can reduce the water content in a filter cake, has a simple structure, is convenient to use, can conveniently clean a filter screen after the filter cake is separated, and can improve the filter pressing efficiency.

In order to achieve the purpose, the invention provides the technical scheme that:

a plate-frame filter press comprises two support plates which are arranged symmetrically left and right, the two support plates are fixedly connected through a material conveying groove, the front side and the rear side of the material conveying groove are respectively provided with a material collecting groove, the material collecting groove is fixedly connected with the support plates, two guide rails which are symmetrical front and back are fixed between the two support plates above the material conveying groove, a left sliding plate is arranged between the two guide rails in a sliding manner, the end surface of the support plate on the right side, which faces to the left sliding plate, is fixedly provided with a right fixed plate, a plurality of plate frames are arranged between the left sliding plate and the right fixed plate, the plurality of plate frames are positioned between the two guide rails, the left sliding plate and the right fixed plate are tightly abutted against the plurality of plate frames, the adjacent two plate frames are connected in a sealing manner, the left sliding plate is connected with the plate frame on the leftmost side in a sealing manner, the plate frame is matched with the guide rails in a sliding manner, the left support plate is fixedly connected with the two telescopic rods of the telescopic cylinders, the upper end of the left support plate is fixedly provided with a transverse upper liquid inlet pipe, the right end of an upper liquid inlet pipe penetrates through a left sliding plate and an upper through hole at the upper end of a plurality of plate frames and is fixedly connected with a right fixed plate, the upper liquid inlet pipe is connected with the upper through hole in a sliding and sealing manner, a lower liquid inlet pipe is arranged on a left support plate below the upper liquid inlet pipe in a sliding manner, the lower liquid inlet pipe penetrates through a left support plate, the right end of the lower liquid inlet pipe penetrates through the left sliding plate and is fixedly connected with the left sliding plate, the liquid inlet end of the lower liquid inlet pipe is communicated with the inlet of a sewage pump through a hose, the lower end of each plate frame is provided with a lower through hole concentric with the lower liquid inlet pipe, the right end of the lower liquid inlet pipe is inserted into the lower through hole at the lower end of the leftmost plate frame in a sealing manner, two bilaterally symmetrical filter plates are connected in the plate frame in a sliding and sealing manner, vertical lower inlet holes are formed in the left and right ends of the lower end of the plate frame, a one-way liquid inlet valve is fixed in the lower inlet hole and communicated with the plate frame inner space and the lower through hole outside the filter plates, two bilaterally symmetrical inner plates are connected in a sliding and in a sealing manner, two inner panels are connected through a plurality of extension springs, the inner panel passes through a plurality of ejector pin fixed connection with the filter plate of its one side, both sides lower extreme all is fixed with the fluid-discharge tube around the sheet frame between the filter plate of inner panel and its one side, space intercommunication between fluid-discharge tube and inner panel and the filter plate, the play liquid end of fluid-discharge tube is located the collecting tank top of its one side, vertical last inlet opening has been seted up to sheet frame upper end between two inner panels in the sheet frame, go up inlet opening and last through-hole and the sheet frame inner space intercommunication between two inner panels, first trompil has all been seted up to the last inlet tube lower extreme of last inlet opening top, first trompil and last inlet opening intercommunication, the second trompil has all been seted up to the left last inlet tube lower extreme of first trompil, the pore wall of going up the through-hole carries out the shutoff to the second trompil, the left and right sides of sheet frame upper end all is provided with filter plate belt cleaning device.

Specifically, a plurality of sheet frames set up along the length direction equipartition of guide rail, both ends all are fixed with the third fixed block around the sheet frame, third fixed block and guide rail sliding fit, both ends all are fixed with the second fixed block around the left side slide, second fixed block and guide rail sliding fit, both ends all are fixed with first fixed block around the board is decided on the right side, the second fixed block passes through the second stay cord with its adjacent third fixed block and is connected, first fixed block passes through the first stay cord with its adjacent third fixed block and is connected, control two adjacent third fixed blocks and pass through the third stay cord and connect.

Specifically, horizontal spouts have all been seted up at the upper and lower both ends of sheet frame inner wall, and equal sliding seal connects with the slider in the spout, slider and filter plate fixed connection.

Specifically, filter plate belt cleaning device is including seting up the recess in the sheet frame upper end left and right sides, the recess of the left and right sides is crisscross the setting from top to bottom, it is provided with the movable tube to slide in the recess, the movable tube vertically sets up, the movable tube lower extreme is fixed with a plurality of nozzles, the blind hole with the recess intercommunication has been seted up in the sheet frame upper end, the blind hole runs through the inlet hole, sliding seal is connected with the slide pipe in the blind hole, the slide pipe runs through the inlet hole, slide pipe one end extends to in the recess and movable tube fixed connection, slide pipe and movable tube intercommunication, be fixed with solid fixed ring on the slide pipe in the recess, the cover is equipped with the spring on the slide pipe between solid fixed ring and the recess tank bottom, gu fixed ring is connected through the fourth stay cord with the tank bottom of recess.

Specifically, the blind hole is a square hole, and the slide pipe is a square pipe.

Specifically, the plurality of nozzles are uniformly distributed according to the length direction of the movable pipe.

Specifically, the upper liquid inlet pipe is communicated with the cleaning liquid tank through a high-pressure pump.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the filter cake can be further extruded after the sewage is subjected to filter pressing, the water content in the filter cake can be reduced, the filter cake can be conveniently treated, the structure is simple, the use is convenient, the filter cake can be completely separated, the filter screen can be conveniently cleaned after the filter cake is separated, and the filter pressing efficiency can be improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention for removing filter cake.

FIG. 2 is a schematic structural diagram of a plate frame used for filter pressing sewage.

Fig. 3 is a hair enlarged view of area a in fig. 2.

Fig. 4 is an enlarged view of the region B in fig. 3.

Figure 5 is a side view of the panel frame.

Detailed Description

As shown in figures 1-5, a plate-and-frame filter press comprises two support plates 1 which are arranged symmetrically left and right, the two support plates 1 are fixedly connected through a material conveying groove 2, the front side and the rear side of the material conveying groove 2 are both provided with a material collecting groove 3, the material collecting groove 3 is fixedly connected with the support plates 1, two guide rails 8 which are symmetrical front and rear are fixed between the two support plates 1 above the material conveying groove 2, a left sliding plate 5 is arranged between the two guide rails 8 in a sliding manner, the end surface of the support plate 1 on the right side facing the left sliding plate 5 is fixedly provided with a right fixed plate 6, a plurality of plate frames 9 are arranged between the left sliding plate 5 and the right fixed plate 6, the left sliding plate 5 and the right fixed plate 6 are tightly abutted against the plurality of plate frames 9, the two adjacent plate frames 9 are connected in a sealing manner, the left sliding plate 5 is connected with the leftmost plate frame 9 in a sealing manner, the right fixed plate 6 is connected with the rightmost plate frame 9 in, third fixed block 16 is all fixed with at the both ends around the sheet frame 9, third fixed block 16 and guide rail 8 sliding fit, second fixed block 12 is all fixed with at both ends around the left side slide 5, second fixed block 12 and guide rail 8 sliding fit, both ends all are fixed with first fixed block 10 around the right side fixed plate 6, second fixed block 12 passes through the second stay cord 13 with its adjacent third fixed block 16 and connects, first fixed block 10 passes through first stay cord 11 with its adjacent third fixed block 16 and connects, control two adjacent third fixed blocks 16 and pass through third stay cord 17 and connect.

Two telescopic cylinders 4 are fixed on a left support plate 1, telescopic rods of the telescopic cylinders 4 penetrate through the left support plate 1 and are fixedly connected with a left sliding plate 5, a transverse upper liquid inlet pipe 7 is fixed at the upper end of the left support plate 1, the upper liquid inlet pipe 7 is communicated with a cleaning liquid box through a high-pressure pump, the right end of the upper liquid inlet pipe 7 penetrates through the left sliding plate 5 and upper through holes 34 at the upper ends of a plurality of plate frames 9 and is fixedly connected with a right fixed plate 6, the upper liquid inlet pipe 7 is connected with the upper through holes 34 in a sliding and sealing manner, a lower liquid inlet pipe 14 is arranged on the left support plate 1 below the upper liquid inlet pipe 7 in a sliding manner, the lower liquid inlet pipe 14 penetrates through the left support plate 1, the right end of the lower liquid inlet pipe 14 penetrates through the left sliding plate 5, the lower liquid inlet pipe 14 is fixedly connected with the left sliding plate 5, the liquid inlet end of the lower liquid inlet pipe 14 is communicated with an inlet of a sewage pump through hose, lower through holes 35 concentric with the lower liquid inlet pipe 14 are formed at the lower ends of the plate frames 9, the right end of the lower liquid inlet pipe 14 is sealed and inserted in the lower through holes 35 at the lower end of the leftmost plate frame 9, two bilaterally symmetrical filter plates 31 are connected in a sliding sealing manner in a plate frame 9, the upper end and the lower end of the inner wall of the plate frame 31 are respectively provided with a transverse sliding chute 29, the sliding chutes 29 are respectively connected in a sliding sealing manner with a sliding block 30, the sliding block 30 is fixedly connected with the filter plates 31, the left end and the right end of the lower end of the plate frame 9 are respectively provided with a vertical lower inlet hole 36, a one-way liquid inlet valve 37 is fixed in the lower inlet hole 36, the lower inlet hole 36 is communicated with the inner space of the plate frame 9 at the outer side of the filter plate 31 and a lower through hole 35, the inner part of the plate frame 9 between the two filter plates 31 is connected in a sliding sealing manner with two bilaterally symmetrical inner plates 32, the two inner plates 32 are connected through a plurality of tension springs 38, the inner plates 32 are fixedly connected with the filter plates 31 at one side thereof through a plurality of ejector rods 33, the lower ends at the front side and the rear side of the plate frame 9 between the inner plates 32 and the filter plates 31 at one side are respectively fixed with a liquid discharge pipe 15, the liquid discharge pipe 15 is communicated with the space between the inner plates 32 and the filter plates 31, the liquid outlet end of the liquid collecting tank 3 at one side thereof, vertical last inlet opening 20 has been seted up to the 9 upper ends of sheet frame between two inner panels 32 in the

sheet frame

9, 9 inner space intercommunication of sheet frame between last inlet opening 20 and last through-hole 34 and two inner panels 32, first trompil 18 has all been seted up to last inlet tube 7 lower extreme above last inlet opening 20, first trompil 18 and last inlet opening 20 intercommunication, second trompil 19 has all been seted up to the left last inlet tube 7 lower extreme of first trompil 18, the pore wall of going up through-hole 34 blocks up second trompil 19, the left and right sides of the upper end of sheet frame 9 all is provided with filter plate belt cleaning device.

The cleaning device for the filter plate comprises grooves 23 arranged at the left side and the right side of the upper end of a plate frame 9, the grooves 23 at the left side and the right side are arranged in a vertically staggered manner, movable pipes 24 are arranged in the grooves 23 in a sliding manner, the movable pipes 24 are longitudinally arranged, a plurality of nozzles 26 are fixed at the lower ends of the movable pipes 24, the plurality of nozzles 26 are uniformly distributed according to the length direction of the movable pipe 24, the upper end of the plate frame 9 is internally provided with a blind hole 21 communicated with the groove 23, the blind hole 21 penetrates through the upper inlet hole 20, the blind hole 21 is internally connected with a sliding pipe 22 in a sliding and sealing way, blind hole 21 is the square hole, and slide pipe 22 is square pipe, and slide pipe 22 runs through last inlet opening 20, and slide pipe 22 one end extends to in the recess 23 with movable tube 24 fixed connection, slide pipe 22 and the 24 intercommunication of movable tube, be fixed with solid fixed ring 25 on the slide pipe 22 in the recess 23, the cover is equipped with spring 27 on the slide pipe 22 between solid fixed ring 25 and the recess 23 tank bottom, gu fixed ring 25 is connected through fourth stay cord 28 with the tank bottom of recess 23.

When sewage is filtered, the telescopic cylinder 4 is started, so that a telescopic rod of the telescopic cylinder 4 drives the left sliding plate 5 to move towards the right side, the left sliding plate 5 and the right fixed plate 6 clamp the plurality of plate frames 9, the left sliding plate 5 is in sealing connection with the leftmost plate frame 9, two adjacent plate frames 9 are in sealing connection, the rightmost plate frame 9 is in sealing connection with the right fixed plate 6, the movable pipe 24 is extruded and then retracted into the groove 23, the spring 27 is compressed, the sliding pipe 22 penetrates through the upper inlet hole 20, and the first opening hole 18 is communicated with the upper inlet hole 20; starting a sewage pump to enable sewage to enter the lower through hole 35 through the lower liquid inlet pipe 14, enabling the sewage to enter the space between the filter plates 31 on the left side and the right side of the sewage through the lower liquid inlet hole 36, enabling the sewage to enter the space between the two filter plates 31 and then to be filtered by the filter plates 31, intercepting solid impurities between the two filter plates 31, enabling clear liquid to enter the space between the filter plates 31 and the inner plates 32 through the filter plate 31 and then to be discharged to the liquid collecting tank 3 through the liquid discharge pipe 15, starting a high-pressure pump after the sewage is filtered, pumping cleaning liquid in a cleaning liquid tank into the upper liquid inlet pipe 7, enabling the cleaning liquid to enter the space between the two inner plates 32 through the first open hole 18 and the upper open hole 20 after the cleaning liquid enters the upper liquid inlet pipe 7, enabling the cleaning liquid to enter the space between the two inner plates 32 because the slide pipe 22 is connected with the blind hole 21 in a sliding sealing manner, enabling the slide pipe 22 to penetrate through the upper liquid inlet hole 20, enabling the cleaning liquid to be incapable of entering the slide pipe 22, and enabling the two inner plates 32 to be far away from each other under the pressure of the cleaning liquid, extension spring 38 is stretched, promotes the filter plate 31 motion when inner panel 32 moves, and the in-process that filter plate 31 moved can extrude the filter cake once more to can reduce the water content in the filter cake, filter plate 31 extrudees the filter cake after, closes the high-pressure pump and carries out the pressure release to last inlet tube 7, goes up behind the inlet tube 7 pressure release, and two filter plates 31 can restore under the pulling force effect of extension spring 38, and filter plate 31 breaks away from with the filter cake this moment, convenient subsequent filter cake desorption.

When needing to carry out the desorption to the filter cake, start telescoping cylinder 4 for telescoping cylinder 4's telescopic link is retracted, and left side slide 5 moves to the left side direction, under the pulling force effect of second stay cord 13, third stay cord 17, and under the limiting displacement of first stay cord 11, left side slide 5, right fixed plate 6 and a plurality of sheet frame 9 can be dispersed, and left side slide 5, right fixed plate 6 and a plurality of sheet frame 9 disperse the back, and the filter cake drops to defeated material inslot 2 back and is exported.

After the left sliding plate 5, the right fixed plate 6 and the plurality of plate frames 9 are dispersed, the first opening 18 is blocked by the hole wall of the upper through hole 34, the second opening 19 is communicated with the upper opening 20, the movable tube 24 moves towards the outside of the groove 23 under the action of the elastic force of the spring 27, after the fourth pull rope 28 is tensioned, the movable tube 24 is positioned outside the groove 23, the liquid outlet end of the nozzle 26 faces towards the filter plate 31 on one side of the movable tube, one end of the sliding tube 22 in the blind hole 21 is communicated with the upper opening 20, then the high-pressure pump is started, the cleaning liquid enters the movable tube 24 through the upper liquid inlet tube 7, the second opening 19, the upper opening 20 and the sliding tube 22 and is sprayed out through the nozzle 26, the cleaning liquid sprayed out from the nozzle 26 can clean the filter plate 31, the pressure of the cleaning liquid is increased, the pressure of the cleaning liquid between the two inner plates 32 is increased under the current limiting action of the nozzle 26, and the two inner plates 32 can relatively separate the two filter plates 31, thereby enabling the filter sheet 31 to approach the nozzles 26, and thus improving the cleaning efficiency of the filter sheet 31.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A plate-frame filter press comprises two support plates which are arranged symmetrically left and right, the two support plates are fixedly connected through a conveying chute, the front side and the rear side of the conveying chute are provided with a liquid collecting tank, the liquid collecting tank is fixedly connected with the support plates, the plate filter press is characterized in that two guide rails which are symmetrical front and back are fixed between the two support plates above the conveying chute, a left sliding plate is arranged between the two guide rails in a sliding manner, a right fixed plate is fixed on the end surface of the support plate on the right side, which faces the left sliding plate, a plurality of plate frames are arranged between the left sliding plate and the right fixed plate, the plurality of plate frames are positioned between the two guide rails, the left sliding plate and the right fixed plate are tightly abutted against the plurality of plate frames, the two adjacent plate frames are connected in a sealing manner, the left sliding plate is connected with the leftmost plate frame in a sealing manner, the plate frames are in sliding fit with the guide rails, two telescopic cylinders are fixed on the support plates on the left side, the telescopic rods penetrate through the support plates on the left side and are fixedly connected with the left sliding plate, a transverse upper liquid inlet pipe is fixed at the upper end of a left support plate, the right end of the upper liquid inlet pipe penetrates through upper through holes at the upper ends of a left sliding plate and a plurality of plate frames and is fixedly connected with a right fixed plate, the upper liquid inlet pipe is connected with the upper through holes in a sliding and sealing manner, a lower liquid inlet pipe is arranged on the left support plate below the upper liquid inlet pipe in a sliding and sealing manner, the lower liquid inlet pipe penetrates through the left support plate, the right end of the lower liquid inlet pipe penetrates through the left sliding plate, the lower liquid inlet pipe is fixedly connected with the left sliding plate, the liquid inlet end of the lower liquid inlet pipe is communicated with the inlet of a sewage pump through a hose, lower through holes concentric with the lower liquid inlet pipe are formed at the lower end of the plate frame, the right end of the lower liquid inlet pipe is inserted into the lower through hole at the lower end of the leftmost plate frame in a sealing manner, two filter plates which are symmetrical left and right are connected in a sliding and sealing manner in the plate frame, vertical lower inlet holes are formed at the left end and right end of the plate frame, a one-way liquid inlet valve is fixed in the lower inlet hole and communicated with the inner space outside the filter plates and the lower through holes, the inside sliding seal of sheet frame between two filter plates is connected with the inner panel of two bilateral symmetry, two inner panels are connected through a plurality of extension springs, the inner panel passes through a plurality of ejector pin fixed connection with the filter plate of its one side, both sides lower extreme all is fixed with the fluid-discharge tube around the sheet frame between the filter plate of inner panel and its one side, space intercommunication between fluid-discharge tube and inner panel and the filter plate, the liquid outlet end of fluid-discharge tube is located the receipts cistern top of its one side, vertical last inlet opening has been seted up to the sheet frame upper end between two inner panels in the sheet frame, go up inlet opening and last through-hole and the sheet frame inner space between two inner panels intercommunication, first trompil has all been seted up to the last inlet pipe lower extreme of last inlet opening top, first trompil and last inlet opening intercommunication, the second trompil has all been seted up to the left last inlet pipe lower extreme of first trompil, the shutoff is carried out to the second trompil to the pore wall of going up through-hole, the left and right sides of sheet frame upper end all is provided with filter plate cleaning device.

2. The plate and frame filter press of claim 1, wherein the plurality of plate frames are uniformly arranged along the length direction of the guide rail, third fixed blocks are fixed at the front and rear ends of the plate frames, the third fixed blocks are in sliding fit with the guide rail, second fixed blocks are fixed at the front and rear ends of the left sliding plate, the second fixed blocks are in sliding fit with the guide rail, first fixed blocks are fixed at the front and rear ends of the right fixed plate, the second fixed blocks are connected with the adjacent third fixed blocks through second pull ropes, the first fixed blocks are connected with the adjacent third fixed blocks through first pull ropes, and the left and right adjacent third fixed blocks are connected through third pull ropes.

3. The plate and frame filter press of claim 1, wherein the plate and frame inner wall has transverse sliding grooves formed at both the upper and lower ends thereof, and the sliding grooves are slidably and sealingly connected with sliding blocks fixedly connected with the filter plates.

4. The filter press according to claim 1, wherein the filter plate cleaning device comprises grooves formed in the left and right sides of the upper end of the plate frame, the grooves in the left and right sides are arranged in a vertically staggered manner, the movable tube is slidably disposed in the groove, the movable tube is longitudinally arranged, a plurality of nozzles are fixed to the lower end of the movable tube, a blind hole communicated with the groove is formed in the upper end of the plate frame, the blind hole penetrates through the upper inlet hole, a slide tube is slidably and hermetically connected in the blind hole, the slide tube penetrates through the upper inlet hole, one end of the slide tube extends into the groove and is fixedly connected with the movable tube, the slide tube is communicated with the movable tube, a fixing ring is fixed to the slide tube in the groove, a spring is sleeved on the slide tube between the fixing ring and the bottom of the groove, and the fixing ring is connected with the bottom of the groove through a fourth pull rope.

5. The filter press according to claim 4, wherein the blind holes are square holes and the slide tubes are square tubes.

6. The filter press according to claim 4, wherein the plurality of nozzles are uniformly arranged in a longitudinal direction of the movable tube.

7. The filter press according to claim 1, wherein the upper liquid inlet pipe is communicated with the cleaning liquid tank by a high pressure pump.