Filter press with automatic filter cloth cleaning function

Abstract

The utility model provides a filter press with an automatic filter cloth cleaning function. The filter press comprises two brackets and side beams arranged on two sides of the brackets, a plurality of filter plates are arranged between the two brackets; a water inlet pipe is arranged on the side of the bracket; the water inlet pipe is provided with a plurality of branch pipes which are communicated with the filter plate; the side beams are provided with guide rails which are provided with plate pulling trolleys. Plate pulling frames are arranged on the side surfaces of the filter plates; the plate pulling frame is slidably connected to the tops of the side beams. Wherein one support is provided with a plurality of hydraulic cylinders, the output ends of the hydraulic cylinders are provided with push plates, and the push plates are located between the filter plates and the supports. According to the filter cloth cleaning device, the filter cloth can be conveniently cleaned, so that residual stains after sewage treatment of the filter press are treated, the stains are prevented from staining the filter cloth for a long time, the corrosion of the filter cloth is reduced, and the service life of the filter cloth is ensured.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, specifically to a filter press with an automatic filter cloth cleaning function. Background Technology

[0002] A filter press is a solid-liquid separation device that separates solid particles from liquid in a suspension by applying pressure. The core principle is to use the retention effect of the filter cloth and the pressure difference to discharge the liquid in the suspension through the filter cloth, while the solid particles are retained on the filter cloth to form a filter cake, thereby achieving solid-liquid separation.

[0003] During the long-term use of a filter press, the filter cloth needs to be replaced regularly. However, replacing the filter cloth is inconvenient and frequent replacements cause inconvenience to users and increase costs. In addition, during the interval between two uses of the filter press, the residue on the filter cloth will also corrode the filter cloth to a certain extent, affecting its service life. Utility Model Content

[0004] The main purpose of this invention is to provide a filter press with an automatic filter cloth cleaning function, thereby solving the problem of frequent filter cloth replacement.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A filter press with an automatic filter cloth cleaning function includes two supports and side beams set on both sides of the supports;

[0007] Several filter plates are installed between the two supports;

[0008] A water inlet pipe is provided on the side of the bracket;

[0009] The inlet pipe has several branch pipes, which are connected to the filter plate.

[0010] In the preferred embodiment, the side beam is equipped with a guide rail, and the guide rail is equipped with a pull plate trolley;

[0011] The filter plate is equipped with a pull plate bracket on its side; the pull plate bracket is slidably connected to the top of the side beam;

[0012] One of the supports is equipped with several hydraulic cylinders, and the output end of the hydraulic cylinder is equipped with a push plate, which is located between the filter plate and the support.

[0013] In the preferred embodiment, the side of the support is provided with an inlet pipe and an outlet pipe;

[0014] The inlet pipe is used for sewage to enter, and the outlet pipe is used for the discharge of treated sewage.

[0015] In the preferred embodiment, a support frame is provided on the side of the bracket to support the water inlet pipe;

[0016] A control valve is installed at the branch connection point.

[0017] In a preferred embodiment, the filter plate includes a fixed frame, a filter cloth is disposed within the fixed frame, and an inlet hole and a through hole are provided within the fixed frame.

[0018] The perforation connects to the filter cloth through the water inlet hole;

[0019] When several filter plates are placed close together, the through holes are connected, and adjacent through holes are tightly connected.

[0020] The through hole is connected to the drain pipe.

[0021] In the preferred embodiment, the fixed frame is equipped with a cylinder, and the cylinder output end is equipped with a sealing plug;

[0022] The sealing plug is used to block the water inlet hole.

[0023] In the preferred embodiment, a sealing ring is provided between the sealing plug and the fixing frame.

[0024] In the preferred embodiment, the number of branch pipes is less than half the number of filter plates;

[0025] Different branch pipes do not connect to two adjacent filter plates.

[0026] This utility model provides a filter press with an automatic filter cloth cleaning function. By adopting the above solution, the following beneficial effects are achieved:

[0027] It facilitates the cleaning of filter cloth, thereby removing residual stains after wastewater treatment in the filter press, preventing stains from adhering to the filter cloth for a long time, slowing down the corrosion of the filter cloth, and thus ensuring the service life of the filter cloth; it can also reduce the frequency of filter cloth replacement and reduce replacement costs. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is the front view of this utility model;

[0031] Figure 3 This is a side sectional view of the present invention;

[0032] Figure 4 yes Figure 3 Enlarged schematic diagram of the structure at point A in the diagram;

[0033] Figure 5 This is a schematic diagram of an embodiment of the present invention.

[0034] In the picture:

[0035] Support 1, side beam 101, guide rail 102, pull plate trolley 103, pull plate frame 104, hydraulic cylinder 105, push plate 106, filter plate 2, fixing frame 201, filter cloth 202, through hole 203, water inlet hole 204, cylinder 205, sealing plug 206, sealing ring 207, liquid inlet pipe 3, liquid outlet pipe 4, water inlet pipe 501, support frame 502, branch pipe 503, control valve 504. Detailed Implementation

[0036] In the embodiments of this application, such as Figure 1 , 2 As shown in Figures 3 and 4, a filter press with an automatic filter cloth cleaning function includes two supports 1 and side beams 101 set on both sides of the supports 1. The supports 1 and side beams 101 can adopt the frame and side beams commonly used in existing filter presses. The top of the side beams 101 is provided with a slide rail for sliding the plate pulling frame 104. Several filter plates 2 are arranged between the two supports 1, and the plate pulling frame 104 is located on both sides of the filter plates 2. The side beams 101 are provided with guide rails 102, and the guide rails 102 are provided with plate pulling trolleys 103. The plate pulling trolleys 103 are the plate pulling trolleys commonly used in existing filter presses and are controlled in the existing way.

[0037] Furthermore, one of the support brackets 1 is equipped with several hydraulic cylinders 105. The output end of each hydraulic cylinder 105 is equipped with a push plate 106, which is located between the filter plate 2 and the support bracket 1. The hydraulic cylinders 105 push the push plate 106 to press the filter plate 2 together. The hydraulic cylinders 105 are existing hydraulic cylinders, connected to an existing hydraulic system, and controlled and connected using existing methods. The side of the support bracket 1 is equipped with an inlet pipe 3 and an outlet pipe 4. The inlet pipe 3 is used for sewage inflow, connecting to an external sewage tank; the outlet pipe 4 is used for discharging treated sewage, connecting to existing next-stage treatment equipment.

[0038] In a further preferred embodiment, the support 1 has a water inlet pipe 501 on its side, which is connected to a water source. Filter cloth cleaning agent can be added to the water inlet pipe as needed. The water inlet pipe 501 has several branch pipes 503, which are connected to the filter plate 2. The support 1 has a support frame 502 on its side, which supports the water inlet pipe 501. A control valve 504 is provided at each branch pipe 503. The control valve is preferably a solenoid valve, and is controlled and connected using existing methods.

[0039] After the filter press finishes processing, the push plate 106 is moved by the hydraulic cylinder 105 to press the filter plate 2 to the working state and maintain pressure. Then, the control valve 504 is opened, and the cleaning water and cleaning agent can enter through the inlet pipe 501 and the branch pipe 503 to clean the filter cloth inside the filter plate 2. The operation is simple and easy to clean the filter cloth, thus ensuring the service life of the filter plate. When it is necessary to continue treating sewage, the control valve 504 is closed and the machine can continue to be used. When it is not necessary to continue treating sewage, the control valve 504 and the hydraulic cylinder 105 are closed, and the pressure is no longer maintained.

[0040] Furthermore, the filter plate 2 includes a fixed frame 201, a filter cloth 202 is provided inside the fixed frame 201, and a water inlet hole 204 and a through hole 203 are provided inside the fixed frame 201. The through hole 203 is connected to the filter cloth 202 through the water inlet hole 204. The filter cloth 202 is the filter cloth commonly used in existing filter presses. When several filter plates 2 are in close contact, the through holes 203 are connected, and adjacent through holes 203 are tightly connected. The through holes 203 are connected to the drain pipe 4. In use, the sewage is filtered by the filter cloth 202 and then enters the through hole 203 through the water inlet hole 204, and finally is discharged through the drain pipe 4. The specific principle can be referred to the existing filter press.

[0041] In another embodiment, such as Figure 3 , 4 As shown in Figure 5, the number of branch pipes 503 is less than half the number of filter plates 2; different branch pipes 503 do not connect two adjacent filter plates 2; the fixed frame 201 is provided with a cylinder 205, and the output end of the cylinder 205 is provided with a sealing plug 206; the sealing plug 206 is used to block the water inlet hole 204; a sealing ring 207 is provided between the sealing plug 206 and the fixed frame 201.

[0042] Normally, the sealing plug 206 is not installed in the water inlet hole 204. During cleaning, the cylinder 205 installed on the filter plate 2 connected to the branch pipe 503 is activated, causing the corresponding sealing plug 206 to block the water inlet hole 204. At this time, the cleaning water can flow through the filter plate 2 connected to the branch pipe 503 to the filter plate 2 not connected to the branch pipe 503, and then be discharged through the water inlet hole 204, thereby increasing the cleaning effect on the filter plate 2 and facilitating the long-term use of the filter plate.

[0043] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A filter press with an automatic filter cloth cleaning function, characterized in that: It includes two supports (1) and side beams (101) set on both sides of the supports (1). Several filter plates (2) are provided between the two supports (1); The side of the bracket (1) is provided with a water inlet pipe (501); The inlet pipe (501) is equipped with several branch pipes (503), which are connected to the filter plate (2).

2. The filter press with automatic filter cloth cleaning function according to claim 1, characterized in that: The side beam (101) is provided with a guide rail (102), and the guide rail (102) is provided with a pull plate trolley (103). The filter plate (2) is provided with a pull plate bracket (104) on its side; the pull plate bracket (104) is slidably connected to the top of the side beam (101); One of the supports (1) is equipped with several hydraulic cylinders (105), and the output end of the hydraulic cylinders (105) is equipped with a push plate (106), which is located between the filter plate (2) and the support (1).

3. The filter press with automatic filter cloth cleaning function according to claim 1, characterized in that: The side of the support (1) is provided with an inlet pipe (3) and an outlet pipe (4); The inlet pipe (3) is used for sewage to enter, and the outlet pipe (4) is used for the discharge of treated sewage.

4. The filter press with automatic filter cloth cleaning function according to claim 1, characterized in that: The side of the bracket (1) is provided with a support frame (502), which is used to support the water inlet pipe (501). A control valve (504) is provided at the branch pipe (503).

5. The filter press with automatic filter cloth cleaning function according to claim 1, characterized in that: The filter plate (2) includes a fixed frame (201), a filter cloth (202) is provided inside the fixed frame (201), and an inlet hole (204) and a through hole (203) are provided inside the fixed frame (201). The through hole (203) is connected to the filter cloth (202) through the water inlet hole (204); When several filter plates (2) are in close contact, the through holes (203) are connected, and adjacent through holes (203) are tightly connected; The through hole (203) is connected to the drain pipe (4).

6. The filter press with automatic filter cloth cleaning function according to claim 5, characterized in that: The fixed frame (201) is equipped with a cylinder (205), and the output end of the cylinder (205) is equipped with a sealing plug (206); The sealing plug (206) is used to block the water inlet hole (204).

7. The filter press with automatic filter cloth cleaning function according to claim 6, characterized in that: A sealing ring (207) is provided between the sealing plug (206) and the fixing frame (201).

8. The filter press with automatic filter cloth cleaning function according to any one of claims 1-7, characterized in that: The number of branch pipes (503) is less than half the number of filter plates (2); Different branch pipes (503) do not connect to two adjacent filter plates (2).

Images