A plate and frame filter press device for chemical wastewater treatment

Abstract

This invention relates to the field of filter press technology, specifically a plate and frame filter press for chemical wastewater treatment. The filter press includes a filter press frame, with an upper convex arch fixedly mounted at one end. A bent bearing plate is fixedly mounted on the outer side of the lower end of the upper convex arch, and a support rail is fixedly mounted on one side of the bent bearing plate. An upward-moving drive bar is fixedly mounted on one side of the filter press frame near the upper convex arch. During filter pressing, a hydraulic pusher moves the first and second filter cake push plates towards both ends of the filter press frame, simultaneously moving the third filter press push plate into the concave groove. After filter pressing, the hydraulic pusher moves the three plates in opposite directions, causing the filter cake to concentrate together under their combined action. The cake is then pushed out from the filter cake ejector port by the third filter press push plate, eliminating the need for manual cleaning.

Description

Technical Field

[0001] This invention relates to the field of filter press technology, specifically a plate and frame filter press for chemical wastewater treatment. Background Technology

[0002] Plate and frame filter presses are excellent for filtering chemical wastewater. They separate solids and liquids by forming filter chambers between filter plates and frames. They are easy to operate, have good filtration effect, and after filtration is completed, the filter plates and frames separate, and the filter cake falls naturally into the collection tank below under the action of gravity.

[0003] After the filtration is completed, the filter plates in the collection tank need to be cleaned by the staff. The cleaning process is quite labor-intensive and difficult for the staff. On the one hand, the collection tank is located at the bottom of the frame, which makes it inconvenient to clean. The use of cleaning tools is limited by the frame structure. On the other hand, the filter cake is scattered in the collection tank and needs to be removed little by little, which is inefficient and affects the use of the plate and frame filter press. Summary of the Invention

[0004] The purpose of this invention is to provide a plate and frame filter press device for chemical wastewater treatment, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A plate and frame filter press device for chemical wastewater treatment includes a filter press frame. An upper convex arch is fixedly mounted at one end of the filter press frame. A bent bearing plate is fixedly mounted on the outer side of the lower end of the upper convex arch. A support rail is fixedly mounted on one side of the bent bearing plate. An upward moving drive bar is fixedly mounted on one side of the filter press frame near the upper convex arch. An upward moving drive inclined surface is provided on the end of the upward moving drive bar away from the upper convex arch. An upper convex support plate is fixedly mounted on the upper side of the end of the upward moving drive bar near the upper convex arch, and a lower extension side plate is fixedly mounted on the lower side. A mating through hole is opened on the lower extension side plate above the mating through hole. An upper top support plate is fixedly mounted on the upper top support plate. A mating slide rod is fixedly mounted on the upper top support plate. A mating fixing block is fixedly mounted on one side of the filter press frame. The filter press frame has a lower insertion hole, and the fixing block and the upper moving drive bar are on the same side of the filter press frame. A filter cake receiving box is fixedly installed at the lower end of the filter press frame. The filter cake receiving box has end connecting holes symmetrically opened at both ends, and a concave mating groove is opened on one side of the filter cake receiving box. A movable insertion hole is opened in the concave mating groove, and the concave mating groove and the upper moving drive bar are on the same side of the filter press frame. A filter cake push-out is opened on the other side of the filter cake receiving box. A hydraulic push rod is fixedly installed on the lower inner side of the upper convex arch frame. An L-shaped driving plate is fixedly installed at the end of the hydraulic push rod. A movable extrusion plate is fixedly installed on the L-shaped driving plate. A hinge groove is opened on the side of the L-shaped driving plate away from the hydraulic push rod. An installation through hole is opened on the top surface of the hinge groove. A filter cake easy cleaning mechanism is installed on the filter press frame.

[0007] Preferably, the convenient filter cake cleaning mechanism includes a hinge frame, a first filter cake pusher plate, a reset spring, a second filter cake pusher plate, a movable positioning block, a reverse thrust spring, and a third filter cake pusher plate. The hinge frame is inserted into the hinge groove, and an installation rod is fixedly provided at the upper end of the hinge frame. The installation rod is inserted into the installation through hole, and a limiting top block is fixedly provided at the upper end of the upper side of the hinge groove.

[0008] Preferably, a side push block is fixedly provided on one side of the limiting top block, a rotating wheel is installed at the lower end of the side push block, and a hinge driving plate is hinged to the lower end of the mating hinge frame. The upper and lower ends of the hinge driving plate are respectively set as arc surfaces, and the hinge driving plate protrudes below the hinge groove. When the hinge driving plate is in a vertical state, it contacts the inner end face of the hinge groove.

[0009] Preferably, the first filter cake pusher plate is installed inside the filter cake receiving box at the end away from the upper convex arch frame, and a first movable insert rod is fixedly provided on the first filter cake pusher plate. The first movable insert rod is inserted into the end connecting hole at the end away from the upper convex arch frame, and a limit end block is fixedly provided on the first movable insert rod. The limit end block is located on the outside of the filter cake receiving box, and a return spring is sleeved on the first movable insert rod.

[0010] Preferably, a side protrusion is fixedly provided on one side of the first filter cake pusher plate, a driven long plate is fixedly provided on the side protrusion, a positioning insertion hole is provided on the driven long plate, and an upper protruding fitting plate is fixedly provided on the end of the driven long plate away from the first filter cake pusher plate. A mating inclined surface is provided on the upper side of the upper protrusion fitting plate near the first filter cake pusher plate. An upper vertical connecting plate is fixedly provided on the side of the side protrusion that is away from the first filter cake pusher plate, and a horizontal extension plate is fixedly provided at the upper end of the upper vertical connecting plate.

[0011] Preferably, a first engaging drive rod is hinged to one end of the horizontal extension plate away from the first filter cake pusher plate, a connecting sliding block is hinged to the lower end of the first engaging drive rod, a second engaging drive rod is hinged to the lower end of the connecting sliding block, and the connecting sliding block is sleeved on the support rail, and a second filter cake pusher plate is hinged to the lower end of the second engaging drive rod.

[0012] Preferably, the second filter cake pusher plate is inserted into the interior of the filter cake receiving box near one end of the upper convex arch frame, and a second movable rod is fixedly provided on the second filter cake pusher plate. The second movable rod is inserted into the end connecting hole near one end of the upper convex arch frame, and a side convex connecting plate is fixedly provided on the second movable rod. The side convex connecting plate is located on the outside of the filter cake receiving box, and the side convex connecting plate is hinged to the second cooperating drive rod.

[0013] Preferably, the movable positioning block is located above the mating fixing block, and a movable positioning rod is fixedly provided at the lower end of the movable positioning block. When the movable positioning rod is not inserted into the positioning hole, its lower end face is in contact with the upper end face of the driven long plate, and the movable positioning rod is inserted into the lower connecting hole. An extended connecting rod is fixedly provided at one end of the movable positioning block, and a third mating driving rod is hinged to the end of the extended connecting rod away from the movable positioning block. A movable plate frame is hinged to the lower end of the third mating driving rod.

[0014] Preferably, a supporting movable rod is fixedly installed on the movable plate frame, the supporting movable rod is inserted into the upper convex bearing plate, and a fixed end plate is fixedly installed on the end of the supporting movable rod away from the movable plate frame, and a reverse thrust spring is sleeved on the supporting movable rod.

[0015] Preferably, the third filter cake pusher plate is inserted into the concave mating groove, and a third movable insert rod is fixedly provided on the third filter cake pusher plate. The third movable insert rod is inserted into the movable insert hole, and a connecting drive plate is fixedly provided on the third movable insert rod. The connecting drive plate is located outside the filter cake receiving box, and a fourth mating drive rod is hinged to the connecting drive plate. A mating elongated plate is hinged to the other end of the fourth mating drive rod. A mating cylindrical rod is fixedly provided at the upper end of the mating elongated plate. A top plate frame is fixedly provided at the end of the mating cylindrical rod away from the mating elongated plate, and the mating cylindrical rod is inserted into the mating through hole. A fifth mating drive rod is hinged to the upper end of the top plate frame, and a counterweight sliding block is hinged to the other end of the fifth mating drive rod. A mating sliding hole is opened on the counterweight sliding block, and a mating sliding rod is inserted into the mating sliding hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a reasonable structural design and strong functionality, and has the following advantages:

[0017] 1. During the filter press operation, the hydraulic push rod drives the first and second filter cake push plates to move towards both ends of the filter press frame, while simultaneously moving the third filter press push plate into the concave groove. After the filter press is completed, the hydraulic push rod drives the three plates to move in opposite directions, causing the filter cake to be concentrated together under the action of the three plates. Then, under the action of the third filter press push plate, the filter cake is pushed out from the filter cake outlet, eliminating the need for manual cleaning. This is convenient, quick, and greatly improves the efficiency of filter cake cleaning.

[0018] 2. During the filter pressing process, the hydraulic push rod drives the hinged drive plate to move, causing the hinged drive plate to contact the upper convex bonding plate. Under the action of the upper convex bonding plate, the hinged drive plate rotates and smoothly passes over the upper convex bonding plate. After the filter pressing is completed, the hinged drive plate drives the first filter cake pusher plate to move. At the same time, under the action of the first filter cake pusher plate, it can drive the second filter cake pusher plate to move, so that the two move towards each other, gathering the filter cake together and making it easier to push it out.

[0019] 3. After the first and second filter cake push plates move toward each other to the working position, the hinged drive plate separates from the upper convex bonding plate. Then, as the L-shaped drive plate continues to move, it will push the top plate frame to move. Then, under the action of the fifth cooperating drive rod, it will drive the third filter cake push plate to move toward the filter cake ejection port, thereby ejecting the filter cake, saving time and effort. Attached Figure Description

[0020] Figure 1 A first-person view of the overall assembly of a plate and frame filter press.

[0021] Figure 2A second-view schematic diagram of the overall assembly of a plate and frame filter press.

[0022] Figure 3 for Figure 1 Enlarged diagram of point A in the middle.

[0023] Figure 4 for Figure 1 Enlarged diagram of point B in the middle.

[0024] Figure 5 This is a schematic diagram of the filter press frame.

[0025] Figure 6 for Figure 5 Enlarged diagram of point C in the middle.

[0026] Figure 7 This is an assembly diagram to match the hinge frame and the hinge drive plate.

[0027] Figure 8 This is a schematic diagram of the structure of the first filter cake pusher plate.

[0028] Figure 9 This is a schematic diagram of the third filter cake pusher plate.

[0029] In the diagram: 1. Filter press frame; 11. Upper convex arch frame; 12. Bending bearing plate; 13. Support rail; 14. Upward drive bar; 15. Upward drive inclined surface; 16. Upper convex bearing plate; 17. Lower extended side plate; 171. Through hole; 172. Upper top bearing plate; 173. Slide rod; 18. Fixing block; 181. Lower insertion hole; 19. Filter cake receiving box; 191. End connecting hole; 192. Inner recessed groove; 93. Movable insertion hole; 194. Filter cake ejection port; 2. Hydraulic push rod; 21. L-shaped drive plate; 22. Movable extrusion plate; 23. Hinge groove; 24. Mounting through hole; 3. Matching hinge frame; 31. Mounting rod; 32. Limiting top block; 33. Side push block; 34. Rotating wheel; 35. Hinge drive plate; 36. Arc surface; 4. First filter cake push plate; 41. First movable rod; 42. Limiting end block; 43. Reset 44. Spring; 45. Side protrusion strip; 46. Driven long plate; 47. Positioning insertion hole; 48. Upper protruding fitting plate; 49. Mating inclined surface; 40. Upper vertical connecting plate; 41. Horizontal extension plate; 492. First mating drive rod; 493. Connecting sliding block; 494. Second mating drive rod; 5. Second filter cake push plate; 51. Second movable insertion rod; 52. Side protruding connecting plate; 6. Movable positioning block; 61. Movable positioning rod; 62. Outward connecting rod; 63. Third mating drive rod; 64. Movable plate frame; 65. Supporting movable rod; 66. Fixed end plate; 67. Reverse thrust spring; 78. Third filter cake push plate; 79. Third movable insertion rod; 70. Connecting driving plate; 71. Fourth mating drive rod; 72. Mating long strip plate; 73. Mating cylindrical rod; 74. Top plate frame; 75. Fifth mating drive rod; 76. Counterweight sliding block; 77. Mating sliding hole. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1 to 9 The present invention provides a technical solution:

[0032] A plate and frame filter press device for chemical wastewater treatment includes a filter press frame 1. An upper convex arch frame 11 is fixedly mounted at one end of the filter press frame 1. A bent bearing plate 12 is fixedly mounted on the outer side of the lower end of the upper convex arch frame 11. A support rail 13 is fixedly mounted on one side of the bent bearing plate 12. An upward moving drive bar 14 is fixedly mounted on one side of the filter press frame 1 near the upper convex arch frame 11. An upward moving drive inclined surface is provided on the end of the upward moving drive bar 14 away from the upper convex arch frame 11. 15. An upper convex support plate 16 is fixedly installed on the upper side of the upper end of the upward moving drive bar 14 near the upper convex arch frame 11, and a lower extension side plate 17 is fixedly installed on the lower side. A mating through hole 171 is opened on the lower extension side plate 17 above the mating through hole 171. An upper top support plate 172 is fixedly installed on the upper top support plate 172. A mating slide rod 173 is fixedly installed on the upper top support plate 172. A mating fixing block 18 is fixedly installed on one side of the filter press frame 1. A lower insertion is opened on the mating fixing block 18. A filter cake receiving box 19 is fixedly installed at the lower end of the filter press frame 1. The filter cake receiving box 19 has symmetrically provided end connecting holes 191 at both ends, and a recessed mating groove 192 is provided on one side of the filter cake receiving box 19. A movable insertion hole 193 is provided in the recessed mating groove 192, and the recessed mating groove 192 and the upper moving drive bar 14 are located on the same side of the filter press frame 1. A filter cake ejection port 194 is provided on the other side of the receiving box 19. A hydraulic push rod 2 is fixedly installed on the lower inner side of the upper arch frame 11. An L-shaped drive plate 21 is fixedly installed at the end of the hydraulic push rod 2. A movable extrusion plate 22 is fixedly installed on the L-shaped drive plate 21. A hinge groove 23 is provided on the side of the L-shaped drive plate 21 away from the hydraulic push rod 2. An installation through hole 24 is provided on the upper top surface of the hinge groove 23. A filter cake easy cleaning mechanism is installed on the filter press frame 1.

[0033] The filter cake easy cleaning mechanism includes a hinge frame 3, a first filter cake pusher plate 4, a reset spring 43, a second filter cake pusher plate 5, a movable positioning block 6, a push spring 67, and a third filter cake pusher plate 7. The hinge frame 3 is inserted into the hinge groove 23, and an installation rod 31 is fixedly provided at the upper end of the hinge frame 3. The installation rod 31 is inserted into the installation through hole 24, and a limit top block 32 is fixedly provided at the upper end of the installation rod 31. The limit top block 32 is located at the upper outer side of the hinge groove 23. In addition, the width of the hinge frame 3 is equal to the width of the hinge groove 23.

[0034] A side push block 33 is fixedly installed on one side of the limiting top block 32. A rotating wheel 34 is installed at the lower end of the side push block 33. A hinge driving plate 35 is hinged to the lower end of the hinge frame 3. The upper and lower ends of the hinge driving plate 35 are respectively set as arc surfaces 36, and part of the hinge driving plate 35 protrudes below the hinge groove 23. When the hinge driving plate 35 is in a vertical state, it is in contact with the inner end face of the hinge groove 23. In addition, before the hinge frame 3 moves up, the lower end face of the limiting top block 32 is in contact with the upper end face of the L-shaped driving plate 21.

[0035] The first filter cake pusher plate 4 is installed inside the filter cake receiving box 19 at one end away from the upper convex arch frame 11. A first movable insert rod 41 is fixedly provided on the first filter cake pusher plate 4. The first movable insert rod 41 is inserted into the end connecting hole 191 at the end away from the upper convex arch frame 11. A limit end block 42 is fixedly provided on the first movable insert rod 41. The limit end block 42 is located on the outside of the filter cake receiving box 19. A return spring 43 is sleeved on the first movable insert rod 41. The return spring 43 is located on the outside of the filter cake receiving box 19. The two ends of the return spring 43 are respectively welded to the outer end face of the filter cake receiving box 19 and the limit end block 42.

[0036] A side protrusion 44 is fixedly provided on one side of the first filter cake pusher plate 4. A driven long plate 45 is fixedly provided on the side protrusion 44. A positioning insertion hole 46 is provided on the driven long plate 45. An upper protruding fitting plate 47 is fixedly provided on the end of the driven long plate 45 away from the first filter cake pusher plate 4. A mating inclined surface 48 is provided on the upper side of the upper protruding fitting plate 47 near the first filter cake pusher plate 4. An upper vertical connecting plate 49 is fixedly provided on the side of the side protrusion 44 away from the first filter cake pusher plate 4. A horizontal extension plate 491 is fixedly provided at the upper end of the upper vertical connecting plate 49.

[0037] A first engaging drive rod 492 is hinged to one end of the horizontal extension plate 491 away from the first filter cake pusher plate 4. A connecting sliding block 493 is hinged to the lower end of the first engaging drive rod 492. A second engaging drive rod 494 is hinged to the lower end of the connecting sliding block 493. The connecting sliding block 493 is sleeved on the support rail 13. A second filter cake pusher plate 5 is hinged to the lower end of the second engaging drive rod 494.

[0038] The second filter cake pusher plate 5 is inserted into the filter cake receiving box 19 at one end near the upper convex arch frame 11, and a second movable insert rod 51 is fixedly provided on the second filter cake pusher plate 5. The second movable insert rod 51 is inserted into the end connecting hole 191 near the upper convex arch frame 11, and a side convex connecting plate 52 is fixedly provided on the second movable insert rod 51. The side convex connecting plate 52 is located on the outside of the filter cake receiving box 19, and the side convex connecting plate 52 is hinged to the second cooperating drive rod 494.

[0039] The movable positioning block 6 is located above the mating fixing block 18, and a movable positioning rod 61 is fixedly installed at the lower end of the movable positioning block 6. When the movable positioning rod 61 is not inserted into the positioning socket 46, its lower end face is in contact with the upper end face of the driven long plate 45, and the movable positioning rod 61 is inserted into the lower connecting hole 181. An extended connecting rod 62 is fixedly installed at one end of the movable positioning block 6. A third mating driving rod 63 is hinged to the end of the extended connecting rod 62 away from the movable positioning block 6. A movable plate frame 64 is hinged to the lower end of the third mating driving rod 63. In addition, the diameter of the movable positioning rod 61 is equal to the diameter of the positioning socket 46.

[0040] A support rod 65 is fixedly installed on the movable plate frame 64. The support rod 65 is inserted into the upper convex bearing plate 16. A fixed end plate 66 is fixedly installed on the end of the support rod 65 away from the movable plate frame 64. A thrust spring 67 is sleeved on the support rod 65. The two ends of the thrust spring 67 are welded to the upper convex bearing plate 16 and the fixed end plate 66, respectively. When the movable positioning rod 61 is not inserted into the positioning hole 46, the thrust spring 67 is in a stretched state.

[0041] The third filter cake pusher plate 7 is inserted into the recessed mating groove 192, and a third movable insert rod 71 is fixedly installed on the third filter cake pusher plate 7. The third movable insert rod 71 is inserted into the movable insertion hole 193, and a connecting drive plate 72 is fixedly installed on the third movable insert rod 71. The connecting drive plate 72 is located on the outside of the filter cake receiving box 19, and a fourth mating drive rod 73 is hinged to the connecting drive plate 72. A mating elongated plate 74 is hinged to the other end of the fourth mating drive rod 73, and a mating cylindrical rod is fixedly installed at the upper end of the mating elongated plate 74. 75. A top plate frame 76 is fixedly installed on one end of the cylindrical rod 75 away from the long strip plate 74. The cylindrical rod 75 is inserted into the through hole 171. A fifth driving rod 77 is hinged to the upper end of the top plate frame 76. A counterweight sliding block 78 is hinged to the other end of the fifth driving rod 77. A sliding hole 79 is provided on the counterweight sliding block 78. A sliding rod 173 is inserted into the sliding hole 79. The end of the fifth driving rod 77 that is hinged to the counterweight sliding block 78 is higher than the end that is hinged to the top plate frame 76.

[0042] During filter pressing, the hydraulic push rod 2 extends, causing the movable extrusion plate 22 to move. The movable extrusion plate 22 extrudes the filter plate and filter frame to form a filter chamber. During this process, the L-shaped drive plate 21 moves away from the upper convex arch frame 11, and the hinged drive plate 35 comes into contact with the upper convex fitting plate 47. Under the action of the upper convex fitting plate 47, the hinged drive plate 35 rotates, allowing it to smoothly pass over the upper convex fitting plate 47 and then return to a vertical position under gravity. After filter pressing is completed, a container for receiving the filter cake is placed at the filter cake ejection port 194. Then, the hydraulic push rod 2 retracts, the filter plate and filter frame separate, and the filter cake falls. The hinged drive plate 35 comes into contact with the upper convex fitting plate 47. Due to the hinge at this time... The connecting plate 35 is in contact with the inner wall of the hinge groove 23, so the hinge plate 35 cannot rotate in the direction of the first filter cake pusher plate 4. Under the action of the hinge plate 35, the upper convex fitting plate 47 can move, thereby moving the first filter cake pusher plate 4. As the first filter cake pusher plate 4 moves, under the action of the first engaging drive rod 492, it will drive the connecting sliding block 493 downward. As the connecting sliding block 493 moves downward, under the action of the second engaging drive rod 494, it will push the second filter cake pusher plate 5 towards the first filter cake pusher plate 4, thus causing them to move towards each other and achieving concentrated pushing of the filter cake. As the first filter cake pusher plate 4 moves, the rotating wheel 34 comes into contact with the upward moving drive inclined surface 15. This will cause the hinged drive plate 35 to move upward until the rotating wheel 34 contacts the uppermost end of the upward drive slope 15. At this time, the positioning hole 46 is aligned vertically with the movable positioning rod 61. Then, under its own weight and the action of the counter-thrust spring 67, the movable positioning rod 61 is inserted into the positioning hole 46, thus fixing the first filter cake push plate 4. At this time, the lower arc surface 36 of the hinged drive plate 35 contacts the mating slope 48. As the hydraulic push rod 2 continues to move, the hinged drive plate 35 moves upward under the action of the mating slope 48, smoothly passing over the upper convex fitting plate 47. Then, the L-shaped drive plate 21 will contact the top plate frame 76, thereby driving the top plate frame 76 to move, causing the counterweight sliding block 78 to move upward. Under the action of the fourth cooperating drive rod 73, the connecting drive plate 72 will move towards the filter cake receiving box 19, thereby causing the third filter cake push plate 7 to move towards the filter cake ejection port 194. At this time, the two ends of the third filter cake push plate 7 will contact the first filter cake push plate 4 and the second filter cake push plate 5 respectively, thus pushing the collected filter cake out without manual cleaning, which is very convenient and quick. In addition, when the third filter cake push plate 7 is about to move to the position of the filter cake ejection port 194, the side push block 33 will contact the movable plate frame 64, thereby pushing the movable plate frame 64 to move. Then, under the action of the third cooperating drive rod 63, the movable positioning block 6 will be pushed upward, causing the movable positioning rod 61 to push out of the positioning insertion hole 46.Then, the first filter cake pusher plate 4 is reset under the action of the reset spring 43, simultaneously driving the second filter cake pusher plate 5 to reset. During the next filtration, the counterweight sliding block 78 moves downwards under its own weight, driving the third filter cake pusher plate 7 back into the concave mating groove 192. Furthermore, after the filter plates and filter frames separate, they no longer move. The distance between the first filter cake pusher plate 4 and the second filter cake pusher plate 5 is greater than the total length of all filter plates and filter frames combined. The hydraulic push rod 2 continues to retract, driving the first filter cake pusher plate 4 and the second filter cake pusher plate 5 to continue moving and pushing and squeezing the filter cake until the movable positioning rod 61 is inserted into the positioning hole 46.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plate and frame filter press device for chemical wastewater treatment, comprising a filter press frame (1), characterized in that: One end of the filter press frame (1) is fixedly provided with an upper convex arch frame (11). A bent bearing plate (12) is fixedly provided on the outer side of the lower end of the upper convex arch frame (11). A support rail (13) is fixedly provided on one side of the bent bearing plate (12). An upward moving drive bar (14) is fixedly provided on one side of the filter press frame (1) near the upper convex arch frame (11). An upward moving drive inclined surface (15) is provided on the end of the upward moving drive bar (14) away from the upper convex arch frame (11). An upper convex bearing plate (16) is fixedly provided on the upper side of the end of the upward moving drive bar (14) near the upper convex arch frame (11), and a lower extending side plate (17) is fixedly provided on the lower side. A mating through hole (171) is provided on the lower extending side plate (17). An upper top support plate (172) is fixedly installed on the lower extension side plate (17) above the through hole (171). A matching slide rod (173) is fixedly installed on the upper top support plate (172). A matching fixing block (18) is fixedly installed on one side of the filter press frame (1). A lower insertion connecting hole (181) is opened on the matching fixing block (18), and the matching fixing block (18) and the upper moving drive bar (14) are on the same side of the filter press frame (1). A filter cake receiving box (19) is fixedly installed at the lower end of the filter press frame (1). End connecting holes (191) are symmetrically opened at both ends of the filter cake receiving box (19), and an inner recessed matching groove (192) is opened on one side of the filter cake receiving box (19). An inner recessed matching groove (192) is opened in the inner recessed matching groove (192). The filter press frame (1) has a movable insertion hole (193), and the concave mating groove (192) and the upward moving drive bar (14) are on the same side of the filter press frame (1). The filter cake receiving box (19) has a filter cake ejection port (194) on the other side. A hydraulic push rod (2) is fixedly installed on the lower inner side of the upper convex arch frame (11). An L-shaped drive plate (21) is fixedly installed at the end of the hydraulic push rod (2). A movable extrusion plate (22) is fixedly installed on the L-shaped drive plate (21). A hinge groove (23) is opened on the side of the L-shaped drive plate (21) away from the hydraulic push rod (2). An installation through hole (24) is opened on the top surface of the hinge groove (23). A filter cake easy cleaning mechanism is installed on the filter press frame (1). The filter cake feeding mechanism includes a hinge frame (3), a first filter cake pusher plate (4), a return spring (43), a second filter cake pusher plate (5), a movable positioning block (6), a reverse thrust spring (67), and a third filter cake pusher plate (7). The hinge frame (3) is inserted into the hinge groove (23), and an installation rod (31) is fixedly provided at the upper end of the hinge frame (3). The installation rod (31) is inserted into the mounting through hole (24), and a limiting top block (32) is fixedly provided at the upper end of the installation rod (31). The limiting top block (32) is located at the upper outer side of the hinge groove (23). The width of the hinge frame (3) is equal to the width of the hinge groove (23). A side push block (33) is fixedly provided on one side of the limiting top block (32).The lower end of the side push block (33) is equipped with a rotating wheel (34), and the lower end of the mating hinge frame (3) is hinged with a hinge driving plate (35). The upper and lower ends of the hinge driving plate (35) are respectively set as arc surfaces (36), and the hinge driving plate (35) protrudes below the hinge groove (23). When the hinge driving plate (35) is in a vertical state, it contacts the inner end face of the hinge groove (23). Before the outer mating hinge frame (3) moves upward, the lower end face of the limiting top block (32) contacts the upper end face of the L-shaped driving plate (21). The first filter cake push plate (4) is fixedly provided with a first movable insert rod (41), and a return spring (43) is sleeved on the first movable insert rod (41). The first filter cake push plate (4) is fixedly provided with a first movable insert rod (41). The first movable insert rod (41) is sleeved with a return spring (43), and one side of the first filter cake push plate (4) is fixedly provided with a return spring (43). A side protrusion strip (44) is fixedly provided, and a driven long plate (45) is fixedly provided on the side protrusion strip (44). The driven long plate (45) is provided with a positioning insertion hole (46), and an upper protruding fitting plate (47) is fixedly provided on the end of the driven long plate (45) away from the first filter cake pusher plate (4). A mating inclined surface (48) is provided on the upper side of the upper protruding fitting plate (47) near the first filter cake pusher plate (4). An upper vertical connecting plate (49) is fixedly provided on the side of the side protrusion strip (44) away from the first filter cake pusher plate (4). A horizontal extension plate (491) is fixedly provided on the upper end of the upper vertical connecting plate (49). A first mating drive is hinged to the end of the horizontal extension plate (491) away from the first filter cake pusher plate (4). The first engaging drive rod (492) has a connecting sliding block (493) hinged to its lower end. The connecting sliding block (493) has a second engaging drive rod (494) hinged to its lower end. The lower end of the movable positioning block (6) is fixedly provided with a movable positioning rod (61), and one end of the movable positioning block (6) is fixedly provided with an extended connecting rod (62). The end of the extended connecting rod (62) away from the movable positioning block (6) is hinged with a third engaging drive rod (63). The lower end of the third engaging drive rod (63) is hinged with a movable plate frame (64). The movable plate frame (64) is fixedly provided with a supporting movable rod (65). A reverse thrust spring (67) is sleeved on the supporting movable rod (65). The third filter cake push plate ( 7) A third movable insert rod (71) is fixedly installed on the upper part of the L-shaped drive plate (21). A connecting drive plate (72) is fixedly installed on the third movable insert rod (71). A fourth mating drive rod (73) is hinged to the connecting drive plate (72). A mating long strip plate (74) is hinged to the other end of the fourth mating drive rod (73). A mating cylindrical rod (75) is fixedly installed at the upper end of the mating long strip plate (74). A top plate frame (76) is fixedly installed at the end of the mating cylindrical rod (75) away from the mating long strip plate (74). A fifth mating drive rod (77) is hinged to the upper end of the top plate frame (76). A counterweight sliding block (78) is hinged to the other end of the fifth mating drive rod (77). The L-shaped drive plate (21) moves away from the upper convex arch frame (11).This causes the hinged drive plate (35) to come into contact with the upper convex fitting plate (47). Under the action of the upper convex fitting plate (47), the hinged drive plate (35) rotates, allowing the hinged drive plate (35) to smoothly pass over the upper convex fitting plate (47). Under the action of gravity, it becomes vertical again. After the filter press is completed, a container for receiving the filter cake is placed at the filter cake ejection port (194). The hydraulic push rod (2) retracts, the filter plate and filter frame separate, and the filter cake falls. The hinged drive plate (35) comes into contact with the upper convex fitting plate (47). At this time, the hinged drive plate (35) is in contact with the inner wall of the hinge groove (23), so the hinged drive plate (35) cannot rotate in the direction of the first filter cake push plate (4). Under the action of the hinged drive plate (35), the filter cake is rotated. The upper convex bonding plate (47) moves, thereby driving the first filter cake pusher plate (4) to move. As the first filter cake pusher plate (4) moves, the connecting sliding block (493) moves downward under the action of the first cooperating drive rod (492). As the connecting sliding block (493) moves downward, the second filter cake pusher plate (5) will be pushed towards the first filter cake pusher plate (4) under the action of the second cooperating drive rod (494), so that the two move towards each other, realizing the concentrated pushing of the filter cake. As the first filter cake pusher plate (4) moves, the rotating wheel (34) contacts the upper moving drive inclined surface (15), which will drive the hinged driving plate (35) to move upward until the rotating wheel (34) contacts the uppermost end of the upper moving drive inclined surface (15). At this time, the positioning insert The hole (46) is aligned vertically with the movable positioning rod (61). Under the weight of the movable positioning rod (61) and the action of the reverse spring (67), the movable positioning rod (61) is inserted into the positioning hole (46) to fix the first filter cake push plate (4). At this time, the arc surface (36) below the hinge driving plate (35) contacts the mating inclined surface (48). As the hydraulic push rod (2) continues to move, the hinge driving plate (35) moves upward under the action of the mating inclined surface (48) and smoothly passes over the upper convex fitting plate (47). Then the L-shaped driving plate (21) will contact the top plate frame (76) and drive the top plate frame (76) to move, causing the counterweight sliding block (78) to move upward. At the same time, the fourth mating drive... Under the action of the rod (73), the connecting plate (72) will move towards the filter cake receiving box (19), so that the third filter cake pusher plate (7) moves towards the filter cake ejection port (194). At this time, the two ends of the third filter cake pusher plate (7) are in contact with the first filter cake pusher plate (4) and the second filter cake pusher plate (5) respectively, and the concentrated filter cake can be pushed out. When the third filter cake pusher plate (7) moves to the position of the filter cake ejection port (194), the side pusher block (33) will contact the movable plate frame (64), and then it will push the movable plate frame (64) to move. Under the action of the third cooperating drive rod (63), the movable positioning block (6) will be pushed upward so that the movable positioning rod (61) will be pushed out of the positioning insertion hole (46).Then, the first filter cake pusher plate (4) is reset under the action of the reset spring (43), and at the same time, it drives the second filter cake pusher plate (5) to reset. When the next filtration is performed, the counterweight sliding block (78) moves downward under its own weight, driving the third filter cake pusher plate (7) to move again into the concave mating groove (192). After the filter plate and filter frame are separated, the filter plate and filter frame no longer move. The distance between the first filter cake pusher plate (4) and the second filter cake pusher plate (5) is greater than the total length of all filter plates and filter frames added together. The hydraulic push rod (2) continues to retract, driving the first filter cake pusher plate (4) and the second filter cake pusher plate (5) to continue to move and push and squeeze the filter cake until the movable positioning rod (61) is inserted into the positioning hole (46).

2. The plate and frame filter press device for chemical wastewater treatment according to claim 1, characterized in that: The first filter cake pusher plate (4) is installed inside the filter cake receiving box (19) at one end away from the upper convex arch frame (11). The first movable insert rod (41) is inserted into the end connecting hole (191) at the end away from the upper convex arch frame (11), and a limiting end block (42) is fixedly provided on the first movable insert rod (41). The limiting end block (42) is located on the outside of the filter cake receiving box (19).

3. The plate and frame filter press device for chemical wastewater treatment according to claim 2, characterized in that: The connecting sliding block (493) is sleeved on the support rail (13), and the lower end of the second cooperating drive rod (494) is hinged to the second filter cake pusher plate (5).

4. The plate and frame filter press device for chemical wastewater treatment according to claim 3, characterized in that: The second filter cake pusher plate (5) is inserted into the filter cake receiving box (19) at one end near the upper convex arch frame (11), and a second movable insert rod (51) is fixedly provided on the second filter cake pusher plate (5). The second movable insert rod (51) is inserted into the end connecting hole (191) near the upper convex arch frame (11), and a side convex connecting plate (52) is fixedly provided on the second movable insert rod (51). The side convex connecting plate (52) is located on the outside of the filter cake receiving box (19), and the side convex connecting plate (52) is hinged to the second cooperating drive rod (494).

5. A plate and frame filter press device for chemical wastewater treatment according to claim 4, characterized in that: The movable positioning block (6) is located on the upper side of the mating fixing block (18). When the movable positioning rod (61) is not inserted into the positioning hole (46), its lower end face is in contact with the upper end face of the driven long plate (45), and the movable positioning rod (61) is inserted into the lower connecting hole (181).

6. A plate and frame filter press device for chemical wastewater treatment according to claim 5, characterized in that: The supporting movable rod (65) is inserted into the upper convex bearing plate (16), and a fixed end plate (66) is fixedly provided on the end of the supporting movable rod (65) away from the movable plate frame (64).

7. A plate and frame filter press device for chemical wastewater treatment according to claim 6, characterized in that: The third filter cake pusher plate (7) is inserted into the concave mating groove (192), the third movable insert rod (71) is inserted into the movable insert hole (193), the connecting drive plate (72) is located on the outside of the filter cake receiving box (19), the mating cylindrical rod (75) is inserted into the mating through hole (171), the counterweight sliding block (78) is provided with a mating sliding hole (79), and a mating sliding rod (173) is inserted into the mating sliding hole (79).

Images