Diaphragm filter press for papermaking sewage

Abstract

The utility model belongs to the technical field of filter presses, and particularly relates to a papermaking sewage diaphragm filter press which comprises a rack, the membrane filter plate is movably arranged on the rack; the collecting hopper is positioned below the diaphragm filter plate, and the collecting hopper is connected to the rack in a sliding manner; the number of the mounting plates is two, and the sides, away from each other, of the two mounting plates are fixedly connected to the rack; the material receiving assembly comprises a material receiving box, two connecting plates, a buffer plate and a plurality of third springs, the material receiving box is located below the material collecting hopper, the sides, close to each other, of the two connecting plates are fixedly connected with the left side and the right side of the material receiving box correspondingly, and the bottoms of the connecting plates make contact with the tops of the corresponding mounting plates; the material receiving buffering effect is achieved when the material receiving box and the material collecting hopper are used through a simple structure, the material collecting hopper and the material receiving box are prevented from being damaged due to long-time impact, the protection effect is good, the service life is prolonged, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of filter presses, in particular to a papermaking wastewater diaphragm filter press. Background Art

[0002] The diaphragm filter press is a filter press with an elastic membrane installed between the filter plate and the filter cloth. During use, when the feeding is completed, the high-pressure fluid or gas medium can be injected into the diaphragm plate. At this time, the entire diaphragm will bulge to compress the filter cake, thereby achieving further dehydration of the filter cake, which is commonly referred to as squeeze filtration.

[0003] Papermaking wastewater refers to wastewater generated during the pulping and papermaking process. It includes pulping cooking wastewater, washing wastewater, bleaching wastewater and paper machine white water. Papermaking wastewater has complex components and poor biodegradability. It is difficult to treat industrial wastewater and is one of the main industrial pollution sources in my country. Among them, papermaking wastewater containing more fibers and suspended matter is often separated by solid-liquid separation using diaphragm filter presses. While achieving wastewater treatment, a large amount of fibers in the wastewater discharged from the papermaking machine can also be recycled to reduce resource waste.

[0004] In the prior art, when the existing membrane filter press unloads the filter cake, the filter cake falls directly onto the conveyor belt or the collecting plate, which has a relatively large impact force on the conveyor belt or the collecting plate, and is likely to cause damage to the conveyor belt or the collecting plate. Therefore, we propose a papermaking wastewater diaphragm filter press to solve the above problem. Utility Model Content

[0005] The utility model aims to solve the problem that the existing diaphragm filter press in the prior art directly drops the filter cake onto a conveyor belt or a collecting plate when unloading the filter cake, which has a relatively large impact force on the conveyor belt or the collecting plate and is easy to cause damage to the conveyor belt or the collecting plate, and thus proposes a diaphragm filter press for papermaking wastewater.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A papermaking wastewater diaphragm filter press, comprising:

[0008] frame;

[0009] A membrane filter plate, wherein the membrane filter plate is movably arranged on the frame;

[0010] A collecting hopper, the collecting hopper is located below the membrane filter plate and is slidably connected to the frame;

[0011] There are two mounting plates, and the two mounting plates are fixedly connected to the frame at two sides away from each other;

[0012] A material receiving assembly, the material receiving assembly comprising: a material receiving box, two connecting plates, a buffer plate and a plurality of third springs, the material receiving box is located below the collecting hopper, the two connecting plates are fixedly connected to the left and right sides of the material receiving box on one side close to each other, the bottom of the connecting plate is in contact with the top of the corresponding mounting plate, the buffer plate is arranged inside the material receiving box, the buffer plate is slidably connected to the inner wall of the material receiving box, the bottom ends of the plurality of third springs are fixedly connected to the bottom inner wall of the material receiving box, and the top ends of the plurality of third springs are fixedly connected to the bottom of the buffer plate;

[0013] There are two positioning components, each of which is arranged on a mounting plate and is used to position and fix the docking material box.

[0014] As a preferred solution of the utility model, a slide groove is opened on the inner wall of the frame, the number of the slide grooves is four, and the left and right sides of the collecting hopper are fixedly connected with sliders, the number of the sliders is four, and the sliders are slidably connected in the corresponding slide grooves.

[0015] As a preferred solution of the utility model, a first spring is fixedly connected to the bottom of the sliding block, and a bottom end of the first spring is fixedly connected to the bottom inner wall of the corresponding sliding groove.

[0016] As a preferred solution of the utility model, the positioning assembly includes an insertion rod and a second spring, the top end of the insertion rod passes through the corresponding mounting plate and is slidably connected to the mounting plate, the second spring is sleeved on the corresponding insertion rod, the top end of the second spring is fixedly connected to the bottom of the mounting plate, the bottom end of the second spring is fixedly connected to the insertion rod, and the top end of the insertion rod passes through the corresponding connecting plate and is slidably connected to the connecting plate.

[0017] As a preferred solution of the utility model, a plug hole is provided on the connecting plate, and the top end of the plug rod passes through the plug hole and is in sliding contact with the inner wall of the plug hole.

[0018] As a preferred solution of the utility model, universal wheels are fixedly installed at the four corners of the bottom of the material receiving box.

[0019] Beneficial effects:

[0020] 1. By arranging a buffer plate that can slide up and down inside the receiving box, and then elastically supporting the buffer plate through the third spring, it can buffer the filter cake produced by the diaphragm filter plate when it falls, and can provide buffer protection for the receiving box, thereby increasing the service life of the receiving box;

[0021] 2. The sliding limiter between the slider and the slide groove can stably support the up and down movement of the collecting hopper, and the first spring can be set to buffer the material receiving of the collecting hopper to prevent the collecting hopper from being damaged by long-term impact;

[0022] 3. The positioning assembly can realize the quick disassembly and assembly between the connecting plate and the mounting plate, so that it is convenient to disassemble and install the docking material box. At the same time, the universal wheel can facilitate the personnel to transport the materials after the docking material box is connected, which improves the convenience of use;

[0023] The utility model realizes the material receiving buffering effect when the material box and the collecting hopper are connected to each other through a simple structure, avoids the collecting hopper and the material receiving box from being damaged by impact for a long time, has good protection effect, improves service life and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0025] Figure 2 It is a three-dimensional diagram of the local structure of the utility model;

[0026] Figure 3 The utility model is attached Figure 2 The structural diagram of part A in the figure;

[0027] Figure 4 It is a three-dimensional structural diagram of the material receiving box, connecting plate, jack, buffer plate, third spring and universal wheel of the utility model.

[0028] In the figure: 1, frame; 2, diaphragm filter plate; 3, collecting hopper; 4, slider; 5, slide groove; 6, first spring; 7, mounting plate; 8, plug rod; 9, second spring; 10, material receiving box; 11, connecting plate; 12, socket; 13, buffer plate; 14, third spring; 15, universal wheel. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Example

[0031] Reference Figure 1-Figure 4 , a papermaking wastewater diaphragm filter press, comprising:

[0032] Rack 1;

[0033] A membrane filter plate 2, the membrane filter plate 2 is movably arranged on the frame 1;

[0034] A collecting hopper 3, the collecting hopper 3 is located below the membrane filter plate 2, and the collecting hopper 3 is slidably connected to the frame 1;

[0035] There are two mounting plates 7, and the two mounting plates 7 are welded to the frame 1 at the sides away from each other;

[0036] The material receiving assembly includes: a material receiving box 10, two connecting plates 11, a buffer plate 13 and a plurality of third springs 14. The material receiving box 10 is located below the collecting hopper 3. The two connecting plates 11 are welded to the left and right sides of the material receiving box 10 on the sides close to each other. The bottom of the connecting plate 11 contacts the top of the corresponding mounting plate 7. The buffer plate 13 is arranged inside the material receiving box 10. The buffer plate 13 is slidably connected to the inner wall of the material receiving box 10. The bottom ends of the plurality of third springs 14 are welded to the bottom inner wall of the material receiving box 10. The top ends of the plurality of third springs 14 are welded to the bottom of the buffer plate 13.

[0037] There are two positioning components, which are arranged on the mounting plate 7 and are used to position and fix the docking material box 10 .

[0038] By means of the above structure: by setting a buffer plate 13 that can slide up and down inside the material receiving box 10, and then elastically supporting the buffer plate 13 through the third spring 14, it is possible to buffer the filter cake produced by the diaphragm filter plate 2 when it falls, and to provide buffer protection for the material receiving box 10, thereby increasing the service life of the material receiving box 10.

[0039] As a preferred solution of the utility model, a slide groove 5 is opened on the inner wall of the frame 1, and the number of the slide grooves 5 is four. Slide blocks 4 are welded on the left and right sides of the aggregate hopper 3, and the number of the slide blocks 4 is four. The slide blocks 4 are slidably connected in the corresponding slide grooves 5. Through the sliding limit cooperation between the slide blocks 4 and the slide grooves 5, the aggregate hopper 3 can be stably supported for the up and down movement.

[0040] As a preferred solution of the utility model, a first spring 6 is welded to the bottom of the slider 4, and the bottom end of the first spring 6 is welded to the bottom inner wall of the corresponding slide groove 5. By setting the first spring 6, the material receiving hopper 3 can be buffered to prevent the material hopper 3 from being damaged by impact for a long time.

[0041] As a preferred solution of the utility model, the positioning assembly includes an insertion rod 8 and a second spring 9. The top end of the insertion rod 8 passes through the corresponding mounting plate 7 and is slidably connected to the mounting plate 7. The second spring 9 is sleeved on the corresponding insertion rod 8. The top end of the second spring 9 is welded to the bottom of the mounting plate 7. The bottom end of the second spring 9 is welded to the insertion rod 8. The top end of the insertion rod 8 passes through the corresponding connecting plate 11 and is slidably connected to the connecting plate 11. By setting the positioning assembly, quick disassembly and assembly between the connecting plate 11 and the mounting plate 7 can be achieved, thereby facilitating the disassembly and installation positioning of the docking material box 10.

[0042] As a preferred solution of the utility model, a socket 12 is provided on the connecting plate 11, and the top end of the plug rod 8 passes through the socket 12 and slides in contact with the inner wall of the socket 12. The socket 12 can facilitate the insertion and limiting of the plug rod 8 and the connecting plate 11.

[0043] As a preferred solution of the utility model, universal wheels 15 are fixedly installed at the four corners of the bottom of the receiving box 10. The universal wheels 15 can facilitate personnel to transfer materials after receiving them in the receiving box 10, thereby improving the convenience of use.

[0044] The working principle of the utility model is as follows: when in use, after the diaphragm filter plate 2 filters the sewage, the solid and liquid in the sewage are separated, so that the solid waste will fall into the collecting hopper 3. At this time, the sliding limiter cooperation between the slider 4 and the slide groove 5 can stably support the collecting hopper 3 to move up and down, and then the first spring 6 can be set to buffer the collecting hopper 3 to prevent the collecting hopper 3 from being damaged by impact for a long time. Then, the solid waste will be guided by the collecting hopper 3 and fall into the inside of the collecting box 10 for collection. When the solid waste enters the inside of the collecting box 10, At this time, by setting a buffer plate 13 that can slide up and down inside the material receiving box 10, and then elastically supporting the buffer plate 13 through the third spring 14, it can buffer the filter cake produced by the diaphragm filter plate 2 when it falls, and can provide buffer protection for the material receiving box 10, thereby increasing the service life of the material receiving box 10. When the material receiving box 10 has completed receiving the material, pulling the two plug rods 8 downward can release the connection between the plug rods 8 and the plug holes 12, and then the material receiving box 10 can be moved out from the inside of the frame 1, so that the material receiving box 10 can be easily transferred and unloaded.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A papermaking wastewater diaphragm filter press, characterized in that: include: Rack (1); A membrane filter plate (2), wherein the membrane filter plate (2) is movably arranged on the frame (1); A collecting hopper (3), the collecting hopper (3) is located below the membrane filter plate (2), and the collecting hopper (3) is slidably connected to the frame (1); There are two mounting plates (7), and the two mounting plates (7) are fixedly connected to the frame (1) at sides away from each other; A material receiving assembly, the material receiving assembly comprising: a material receiving box (10), two connecting plates (11), a buffer plate (13) and a plurality of third springs (14); the material receiving box (10) is located below the collecting hopper (3); the two connecting plates (11) are fixedly connected to the left and right sides of the material receiving box (10) on their sides close to each other; the bottom of the connecting plate (11) contacts the top of the corresponding mounting plate (7); the buffer plate (13) is arranged inside the material receiving box (10); the buffer plate (13) is slidably connected to the inner wall of the material receiving box (10); the bottom ends of the plurality of third springs (14) are fixedly connected to the bottom inner wall of the material receiving box (10); and the top ends of the plurality of third springs (14) are fixedly connected to the bottom of the buffer plate (13); Two positioning components are provided, and the positioning components are arranged on a mounting plate (7). The positioning components are used to position and fix the docking material box (10).

2. A papermaking wastewater diaphragm filter press according to claim 1, characterized in that: The inner wall of the frame (1) is provided with a slide groove (5), the number of which is four. The left and right sides of the collecting hopper (3) are fixedly connected with sliders (4), the number of which is four. The sliders (4) are slidably connected in the corresponding slide grooves (5).

3. A papermaking wastewater diaphragm filter press according to claim 2, characterized in that: The bottom of the sliding block (4) is fixedly connected to a first spring (6), and the bottom end of the first spring (6) is fixedly connected to the bottom inner wall of the corresponding sliding groove (5).

4. The papermaking wastewater diaphragm filter press according to claim 1, characterized in that: The positioning assembly comprises an insertion rod (8) and a second spring (9), the top end of the insertion rod (8) passes through the corresponding mounting plate (7) and is slidably connected to the mounting plate (7), the second spring (9) is sleeved on the corresponding insertion rod (8), the top end of the second spring (9) is fixedly connected to the bottom of the mounting plate (7), the bottom end of the second spring (9) is fixedly connected to the insertion rod (8), and the top end of the insertion rod (8) passes through the corresponding connecting plate (11) and is slidably connected to the connecting plate (11).

5. The papermaking wastewater diaphragm filter press according to claim 4, characterized in that: The connecting plate (11) is provided with an insertion hole (12), and the top end of the insertion rod (8) passes through the insertion hole (12) and is in sliding contact with the inner wall of the insertion hole (12).

6. The papermaking wastewater diaphragm filter press according to claim 1, characterized in that: Universal wheels (15) are fixedly mounted at the four corners of the bottom of the material receiving box (10).

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