Automatic cleaning device for disc filter

Abstract

The utility model belongs to the disc filter filter disc cleaning technical field, concretely relates to a disc filter automatic cleaning device, including the groove body, the left side fixed connection of groove body has the feed tank, the inside rotation of groove body is connected with the filter disc, the filter disc is connected with the filtrate pipe, the fixed connection of water supply pipe has on the feed tank, is connected with a plurality of corresponding spray pipe of filter disc on water supply pipe, each spray pipe all is from left to right to the upper inclination, all is penetrated with a plurality of water spray hole on spray pipe, the right side fixed connection of groove body has the mounting seat, the fixed connection of a plurality of auxiliary connecting ribs has on the mounting seat, each auxiliary connecting rib and each spray pipe one -to -one corresponding connection is equipped with the upper arch portion with filtrate pipe corresponding on the auxiliary connecting rib and the support portion with the fixed connection of mounting seat, the support portion is from left to right to the downward inclination. Disc filter automatic cleaning device of the utility model, utilize the arch mechanical principle to improve the structural stability of spray pipe effectively.

Description

Technical Field

[0001] This utility model relates to an automatic cleaning device for disc filters, belonging to the field of disc filter disc cleaning technology. Background Technology

[0002] A disc filter is a solid-liquid separation device that uses vacuum as the filtration power to separate solids from liquids. Its filter disc is composed of multiple individual sector-shaped plates, each a separate filtration unit. Filter cloth is used to cover the sector-shaped plate, forming a filter chamber. The filter disc is driven by a motor through a reducer and open gear transmission, rotating clockwise. In the adsorption zone, the slurry in the filter chamber adheres to the filter disc, forming a filter cake, thanks to the pressure difference created by the vacuum pump on both sides of the filter medium. A stirrer rotates to prevent solid sedimentation. After the filter cake leaves the liquid surface, it continues to lose water under vacuum. The filtrate passes through the filter cloth, flows through the filtrate pipe, and is discharged from the distribution head. The filter cake is discharged into the discharge trough by a back-blowing airflow in the discharge zone. The entire operation is a continuous cycle.

[0003] In practical applications of disc filters, impurities inevitably accumulate on the surface of the filter discs. To ensure the filtration efficiency of the filter discs, they need to be cleaned regularly. However, the existing cleaning devices for disc filters have unreasonable structures. For example, Chinese utility model patent CN203458887U discloses a novel disc vacuum filter cloth washing device, in which the water spray pipe is horizontally set and its end is suspended. After prolonged use, the end of the water spray pipe is prone to sagging, which reduces the rinsing coverage area of ​​the water spray pipe and affects the rinsing effect on the root of the filter disc. Furthermore, the root of the water spray pipe is also prone to breakage, resulting in water leakage and a short service life of the water spray pipe. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an automatic cleaning device for a disc filter with better water spray pipe structure stability.

[0005] The automatic cleaning device for disc filters of this utility model includes a tank. A feeding box is fixedly connected to the left side of the tank. A filter disc is rotatably connected to the inner side of the tank. The filter disc is connected to a filtrate pipe. A water supply pipe is fixedly connected to the feeding box. Multiple water spray pipes corresponding to the filter disc are connected to the water supply pipe. Each water spray pipe is inclined upward from left to right and has several water spray holes. A mounting base is fixedly connected to the right side of the tank. Multiple auxiliary connecting ribs are fixedly connected to the mounting base. Each auxiliary connecting rib is connected to each water spray pipe in a one-to-one correspondence. The auxiliary connecting ribs are provided with an upper arch corresponding to the filtrate pipe and a support part fixedly connected to the mounting base. The support part is inclined downward from left to right.

[0006] Furthermore, the water spray hole is angled downwards.

[0007] Furthermore, the water spray holes are arranged in two rows.

[0008] Furthermore, the water supply pipe is provided with multiple water outlets, and each water outlet and auxiliary connecting rib can be detachably and fixedly connected to the corresponding water spray pipe.

[0009] Furthermore, a step is provided on the inner side of the water outlet, and a first sealing gasket is installed on the step. The left end of the water spray pipe is threaded into the water outlet, and the port corresponds to the first sealing gasket.

[0010] Furthermore, the auxiliary connecting rib is provided with a guide portion, and the end of the guide portion is provided with a limiting platform. A second sealing gasket is installed on the end face of the limiting platform. A locking sleeve is slidably connected to the auxiliary connecting rib. The locking sleeve is provided with a guide hole that corresponds to and matches the guide portion. The diameter of the guide hole is smaller than the diameter of the limiting platform. The right end of the water spray pipe is threaded into the locking sleeve, and the port corresponds to the second sealing gasket.

[0011] Working principle and process:

[0012] When rinsing the filter discs, the cleaning solution enters each spray pipe through the water supply pipe and each outlet, and then is sprayed onto the filter discs through each spray hole, thus rinsing the filter discs. Since the spray pipes and auxiliary connecting ribs are arched as a whole, according to the principle of arch mechanics, the vertical pressure can be converted into lateral thrust. Therefore, the gravity on the spray pipes can be distributed to the water supply pipes for balance, thereby improving the structural stability of the spray pipes.

[0013] The advantages of this utility model compared with the prior art are:

[0014] The automatic cleaning device for disc filters described in this utility model effectively improves the structural stability of the spray pipe by utilizing the principle of arch mechanics. On the one hand, it prevents the end of the spray pipe from sagging, ensuring the rinsing effect of the spray pipe on the root of the filter disc; on the other hand, it effectively prevents the root of the spray pipe from breaking, thus improving the service life of the spray pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 yes Figure 1 Enlarged view at point M;

[0017] Figure 3 yes Figure 1 A magnified view of point N in the middle.

[0018] In the diagram: 1. Tank; 2. Feed box; 3. Filter plate; 4. Water supply pipe; 5. Water spray pipe; 6. Filtration pipe; 7. Upper arch; 8. Support; 9. Mounting base; 10. First sealing gasket; 11. Water outlet; 12. Water spray hole; 13. Step; 14. Guide; 15. Limiting platform; 16. Guide hole; 17. Second sealing gasket; 18. Locking sleeve. Detailed Implementation

[0019] The embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0020] Example 1:

[0021] like Figures 1 to 3 As shown, the automatic cleaning device for disc filters of this utility model includes a tank 1. A feeding box 2 is fixedly connected to the left side of the tank 1. A filter disc 3 is rotatably connected to the inner side of the tank 1. A filtrate pipe 6 is connected to the filter disc 3. A water supply pipe 4 is fixedly connected to the feeding box 2. Multiple water spray pipes 5 corresponding to the filter disc 3 are connected to the water supply pipe 4. Each water spray pipe 5 is inclined upward from left to right. Multiple water spray holes 12 are passed through each water spray pipe 5. A mounting base 9 is fixedly connected to the right side of the tank 1. Multiple auxiliary connecting ribs are fixedly connected to the mounting base 9. Each auxiliary connecting rib is connected to each water spray pipe 5 in a one-to-one correspondence. The auxiliary connecting ribs are provided with an upper arch 7 corresponding to the filtrate pipe 6 and a support part 8 fixedly connected to the mounting base 9. The support part 8 is inclined downward from left to right.

[0022] When rinsing the filter disc 3, the cleaning fluid enters each spray pipe 5 through the water supply pipe 4, and then is sprayed onto the filter disc 3 through each spray hole 12, thereby rinsing the filter disc 3. Since the spray pipe 5 and the auxiliary connecting rib are arched as a whole, according to the principle of arch mechanics, the vertical pressure can be converted into lateral thrust. Therefore, the gravity on the spray pipe 5 can be distributed to the water supply pipe 4 for balance, thereby improving the structural stability of the spray pipe 5.

[0023] Example 2:

[0024] like Figures 1 to 3 As shown, based on Example 1,

[0025] Furthermore, the water spray hole 12 is inclined downwards. Since the filter disc 3 rotates clockwise and moves upwards on the left side, the cleaning liquid sprayed from the downward-inclined water spray hole 12 will directly hit the filter disc 3, which can effectively improve the cleaning effect on the filter disc 3.

[0026] Furthermore, the water spray holes 12 are arranged in two rows, which can effectively increase the radial rinsing coverage area of ​​the water spray pipe 5, thereby improving the rinsing effect on the filter disc 3.

[0027] Furthermore, the water supply pipe 4 is provided with multiple water outlets 11, and each water outlet 11 and auxiliary connecting rib can be detachably and fixedly connected to the corresponding spray pipe 5. This facilitates the disassembly, maintenance, or replacement of the spray pipe 5.

[0028] Furthermore, a step 13 is provided on the inner side of the water outlet 11, and a first sealing gasket 10 is installed on the step 13. The left end of the water spray pipe 5 is threaded into the water outlet 11, and the port corresponds to the first sealing gasket 10. The water spray pipe 5 can be easily removed from the water outlet 11 by twisting it. At the same time, after the water spray pipe 5 is installed in the water outlet 11, the first sealing gasket 10 can seal the water spray pipe 5 to prevent water leakage and pressure loss, thereby ensuring the rinsing effect of the water spray pipe 5.

[0029] Furthermore, the auxiliary connecting rib is provided with a guide portion 14, and a limiting platform 15 is provided at the end of the guide portion 14. A second sealing gasket 17 is installed on the end face of the limiting platform 15. A locking sleeve 18 is slidably connected to the auxiliary connecting rib. The locking sleeve 18 is provided with a guide hole 16 that corresponds to and matches the guide portion 14. The diameter of the guide hole 16 is smaller than the diameter of the limiting platform 15. The right end of the water spray pipe 5 is threaded into the locking sleeve 18, and its port corresponds to the second sealing gasket 17. By turning the locking sleeve 18, the locking sleeve 18 can be separated from the water spray pipe 5, thereby facilitating the separation of the water spray pipe 5 from the auxiliary connecting rib. At the same time, when the locking sleeve 18 locks the water spray pipe 5, the second sealing gasket 17 can seal the water spray pipe 5 to prevent water leakage and pressure loss, thereby ensuring the rinsing effect of the water spray pipe 5.

[0030] It should be noted that in the description of this utility model, the terms "left", "right", "up", "down", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. An automatic cleaning device for a disc filter, comprising a tank (1), a feed box (2) fixedly connected to the left side of the tank (1), a filter disc (3) rotatably connected to the inner side of the tank (1), and a filtrate pipe (6) connected to the filter disc (3), characterized in that: A water supply pipe (4) is fixedly connected to the feed box (2). Multiple water spray pipes (5) corresponding to the filter disc (3) are connected to the water supply pipe (4). Each water spray pipe (5) is inclined upward from left to right. Several water spray holes (12) are passed through the water spray pipe (5). A mounting base (9) is fixedly connected to the right side of the tank (1). Multiple auxiliary connecting ribs are fixedly connected to the mounting base (9). Each auxiliary connecting rib is connected to each water spray pipe (5) in a one-to-one correspondence. The auxiliary connecting ribs are provided with an upper arch (7) corresponding to the filtrate pipe (6) and a support part (8) fixedly connected to the mounting base (9). The support part (8) is inclined downward from left to right.

2. The automatic cleaning device for disc filters according to claim 1, characterized in that: The water spray hole (12) is set at a downward angle.

3. The automatic cleaning device for disc filters according to claim 1, characterized in that: The water spray holes (12) are arranged in two rows.

4. The automatic cleaning device for disc filters according to any one of claims 1 to 3, characterized in that: The water supply pipe (4) is provided with multiple water outlets (11), and each water outlet (11) and auxiliary connecting rib can be detachably and fixedly connected to the corresponding water spray pipe (5).

5. The automatic cleaning device for disc filters according to claim 4, characterized in that: The water outlet (11) has a step (13) on its inner side, and a first sealing gasket (10) is installed on the step (13). The left end of the water spray pipe (5) is threaded into the water outlet (11), and its port corresponds to the first sealing gasket (10).

6. The automatic cleaning device for disc filters according to claim 5, characterized in that: The auxiliary connecting rib is provided with a guide part (14), and the end of the guide part (14) is provided with a limiting platform (15). A second sealing gasket (17) is installed on the end face of the limiting platform (15). A locking sleeve (18) is slidably connected to the auxiliary connecting rib. The locking sleeve (18) is provided with a guide hole (16) that corresponds to and matches the guide part (14). The diameter of the guide hole (16) is smaller than the diameter of the limiting platform (15). The right end of the water spray pipe (5) is threadedly connected to the locking sleeve (18), and the port is corresponding to the second sealing gasket (17).

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