Sludge filtering device

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a sludge filtering device. Comprising a box body, the box body is rectangular, an opening is formed in the top of the box body, a first filtering cavity and a second filtering cavity are formed in the box body, the first filtering cavity is formed in the upper half portion of the box body and communicated with the opening in the top of the box body, the second filtering cavity is formed in the lower half portion of the box body and communicated with the bottom of the first filtering cavity, and the first filtering cavity is cylindrical; compared with the prior art, the double-layer filter screen has the advantages that sludge can be effectively prevented from being accumulated on the double-layer filter screen, so that the problem of blockage of the filter screen is avoided, the working efficiency is improved, and the service life of the double-layer filter screen is prolonged. Meanwhile, sewage passing through the filter screen is prevented from directly passing through the precipitation pipe without precipitation, so that the filtering quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sludge filtering device. Background Art

[0002] In the process of sewage treatment, a major challenge often encountered is the impurities in the sewage and the sludge accumulated at the bottom. The presence of these impurities and sludge greatly affects the efficiency of subsequent sewage treatment. In order to ensure the smooth progress of sewage treatment, the impurities and sludge must be effectively cleaned.

[0003] At present, there is a disclosed sludge discharge device for sewage treatment, with publication number CN221267429U, which includes an installation box and also includes: a filtering structure: the filtering structure is installed in the installation box, and the sewage sent into the installation box is filtered through the filtering structure, the filtering structure includes a filter frame, a medium-efficiency filter screen and a high-efficiency filter screen, the side end of the filter frame is fixedly connected with a plurality of insertion plates, and a plurality of insertion grooves are opened on the inner side wall of the installation box, the filter frame is slidably connected in the installation box, and a plurality of the insertion plates are respectively slidably connected in a plurality of insertion grooves, and the medium-efficiency filter screen and the high-efficiency filter screen are both installed in the filter frame; a sedimentation structure: the sedimentation structure is installed in the installation box, and the sedimentation structure includes a sedimentation groove, through which the sediment in the sewage can be precipitated; a drainage structure: the drainage structure is installed in the installation box, and the water after the sediment precipitation is completed is discharged through the drainage structure.

[0004] Although the device can separate impurities and silt in sewage to a certain extent, there are still some significant problems in actual operation: since sewage may contain a large amount of fine particles and sticky substances, these substances are easy to accumulate on the filter net, causing the filter net to be blocked, thereby reducing the efficiency of sewage treatment; during the sedimentation process, if the sewage falls directly into the sedimentation tank, it may result in poor sedimentation effect, and the silt will mix with the clean water, affecting the final sludge discharge quality. Utility Model Content

[0005] In order to solve the above-mentioned technical problems or one of the technical problems existing in the prior art, the utility model discloses a sludge filtering device, including a box body, the box body is rectangular and has an opening at the top, the box body includes a first filter chamber and a second filter chamber inside, the first filter chamber is arranged at the upper half of the box body and is connected to the opening at the top, the second filter chamber is arranged at the lower half of the box body and is connected to the bottom of the first filter chamber, the first filter chamber is cylindrical, the second filter chamber is rectangular, a stirring filtering device is arranged in the first filter chamber, a sedimentation filtering device is arranged in the second filter chamber, the stirring filtering device includes a cover plate arranged at the opening at the top of the box body, a motor is arranged above the cover plate, a water inlet is arranged on one side of the motor, a stirring roller is arranged below the cover plate, the top end of the stirring roller passes through the cover plate and is connected to the output end of the motor, and the bottom end is connected to the first The filter chamber extends inside, and a stirring paddle is fixedly connected to the side of the bottom end of the stirring roller, and a brush is fixedly connected to the bottom of the stirring paddle, and a double-layer filter screen is arranged below the brush, and a first limiting edge is arranged at the bottom of the double-layer filter screen, and the first limiting edge is annular, and the outer side surface is fixedly connected to the side wall of the first filter chamber, and an umbrella-shaped baffle is fixedly connected to the bottom center of the double-layer filter screen, and the sedimentation filtering device includes a sedimentation box arranged below the umbrella-shaped baffle, and a sedimentation tank is opened at the top of the sedimentation box, and a double-way interface is arranged at the bottom of the sedimentation tank, and a sedimentation pipe is screwed at the top of the double-way interface, and the bottom end of the double-way interface extends to the bottom of the sedimentation tank, and second limiting edges fixed to the inner wall of the box body are arranged on both sides of the bottom of the sedimentation tank, and the side wall of the box body is provided with an installation port, and the sedimentation tank is inserted into the interior of the box body through the installation port, and a water outlet is arranged on the bottom side wall of the box body.

[0006] Furthermore, the cover plate is stepped.

[0007] Furthermore, the double-layer filter includes a first filter, a second filter and a support frame. The support frame is annular, the top is screwed to the first filter by screws, and the bottom is screwed to the second filter by screws. The brush fits the top surface of the first filter.

[0008] Furthermore, the filter holes of the first filter screen are larger than the filter holes of the second filter screen.

[0009] Furthermore, the sedimentation pipe is arranged below the umbrella-shaped baffle, and the bottom end area of ​​the umbrella-shaped baffle is larger than the top end of the sedimentation pipe and smaller than the notch of the sedimentation tank.

[0010] Furthermore, a handle is provided on the outer side of the sedimentation box, and a handle groove is provided on the top surface of the handle.

[0011] Furthermore, the outer side of the sedimentation box is surrounded by retaining edges.

[0012] Furthermore, the stirring paddles are in two groups and are arranged in upper and lower positions.

[0013] Compared with the prior art, the utility model has the following excellent technical effects:

[0014] Double-chamber design: By dividing the inner part of the box into the first filter chamber and the second filter chamber, graded treatment of sewage is achieved, improving the filtration efficiency and treatment capacity.

[0015] Stirring and filtering device: The stirring and filtering device in the first filter chamber drives the stirring roller through a motor, and cooperates with a stirring paddle and a brush to effectively prevent the filter from being blocked, enhance the cleaning ability of the filter, and maintain the filtering efficiency.

[0016] Double-layer filter structure: The double-layer filter design can more effectively intercept particles of different sizes and improve filtering accuracy.

[0017] Umbrella baffle: The design of the umbrella baffle helps to control the flow direction and speed of the filter medium, prevent the silt from mixing with the clean water, and improve the sedimentation effect.

[0018] Sedimentation and filtration device: The sedimentation and filtration device in the second filter chamber uses the design of the sedimentation box and the sedimentation tank to enable the silt in the sewage to be effectively precipitated in the sedimentation tank, and the sewage is discharged through the double-way interface, ensuring the quality and efficiency of sludge discharge.

[0019] Structural optimization: The design of the double-pass interface and sedimentation pipe at the bottom of the sedimentation tank, as well as the way the sedimentation tank is inserted into the box through the installation port, all help to simplify the structure and facilitate installation and maintenance.

[0020] Water outlet design: The water outlet design on the bottom side wall of the box is convenient for the discharge of treated water, reducing the footprint of the equipment and the complexity of operation.

[0021] Overall efficiency improvement: Through the comprehensive application of the above-mentioned designs, the sludge filtering device of the utility model can improve the overall efficiency and quality of sewage treatment while ensuring the filtering effect.

[0022] The realization of these technical effects makes the sludge filtering device of the utility model have high practicality and promotion value in the field of sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the double-layer filter screen of the utility model. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-3 The technical solution adopted by the utility model shown in the figure is: a sludge filtering device, including a box body 1, the box body 1 is rectangular and has an opening at the top, the box body 1 includes a first filter chamber and a second filter chamber, the first filter chamber is arranged at the upper half of the box body 1 and is connected to the opening at the top, the second filter chamber is arranged at the lower half of the box body 1 and is connected to the bottom of the first filter chamber, the first filter chamber is cylindrical, the second filter chamber is rectangular, a stirring filtering device is arranged in the first filter chamber, and a sedimentation filtering device is arranged in the second filter chamber, the stirring filtering device includes a cover plate 2 arranged at the top opening of the box body 1, a motor 22 is arranged above the cover plate 2, a water inlet 21 is arranged on one side of the motor 22, a stirring roller 23 is arranged below the cover plate 2, the top end of the stirring roller 23 passes through the cover plate 2 and is connected to the output end of the motor 22, and the bottom end extends to the inside of the first filter chamber, and a stirring paddle 24 is fixedly connected to the side of the bottom end of the stirring roller 23, and the stirring paddle 24 A brush 25 is fixedly connected to the bottom, a double-layer filter screen 26 is arranged below the brush 25, a first limiting edge 11 is arranged at the bottom of the double-layer filter screen 26, the first limiting edge 11 is annular, and the outer side surface is fixedly connected to the side wall of the first filter cavity, and is used to support and limit the double-layer filter screen 26, an umbrella-shaped baffle 27 is fixedly connected to the bottom center of the double-layer filter screen 26, the sedimentation filtering device includes a sedimentation box 3 arranged below the umbrella-shaped baffle 27, and a sedimentation tank 31 is opened on the top of the sedimentation box 3, A double-way interface 33 is provided at the bottom of the sedimentation tank 31, and a sedimentation tube 32 is screwed to the top of the double-way interface 33. The bottom end of the double-way interface 33 extends to the bottom of the sedimentation tank 31. Second limiting edges 13 fixedly connected to the inner wall of the box body 1 are provided on both sides of the bottom of the sedimentation tank 31, which are used to support and limit the sedimentation box 3. The side wall of the box body 1 is provided with an installation port 12, and the sedimentation tank 31 is inserted into the interior of the box body 1 through the installation port 12. The bottom side wall of the box body 1 is provided with a water outlet 14.

[0028] Preferably, the cover plate 2 is stepped to enable better fit and better sealing performance.

[0029] Preferably, the double-layer filter 26 includes a first filter 262, a second filter 263 and a support frame 261. The support frame 261 is annular, and the top is screwed to the first filter 262 by screws, and the bottom is screwed to the second filter 263 by screws, which can more effectively filter impurities of different sizes. The brush 25 fits with the top surface of the first filter 262 and can effectively clean the filter.

[0030] Preferably, the filter holes of the first filter screen 262 are larger than the filter holes of the second filter screen 263, so as to achieve a combination of coarse filtration and fine filtration and improve the filtration efficiency.

[0031] Preferably, the sedimentation pipe 32 is arranged below the umbrella-shaped baffle 27, and the bottom area of ​​the umbrella-shaped baffle 27 is larger than the top of the sedimentation pipe 32 and smaller than the notch of the sedimentation tank 31, so as to prevent the sewage from falling directly into the sedimentation pipe 32 and can fall smoothly into the sedimentation tank 31.

[0032] Preferably, a handle 34 is provided on the outer side of the sedimentation box 3, and a handle groove 35 is provided on the top surface of the handle 34, which is convenient for installation, disassembly and movement, improves the operability of the equipment and reduces the labor intensity of the staff.

[0033] Preferably, the outer side of the sedimentation box 3 is surrounded by retaining edges 36 to prevent sewage from splashing out and enhance the stability of the sedimentation box 3 .

[0034] Preferably, the stirring paddles 24 are provided in two groups, one at the top and the other at the bottom, so as to more effectively stir the sludge and prevent the sludge from accumulating on the filter screen.

[0035] Working process:

[0036] Water inlet stage: sewage enters the top of the box body 1 through the water inlet 21.

[0037] Primary filtration and stirring: The sewage first flows into the first filter chamber, which is cylindrical and equipped with a stirring and filtering device. The motor 22 drives the stirring roller 23 to rotate. The side of the bottom end of the stirring roller 23 is fixed with a stirring paddle 24, and the bottom is fixed with a brush 25. The rotating motion of the stirring paddle and the brush can prevent sludge from accumulating on the double-layer filter screen 26, thereby avoiding clogging of the filter screen.

[0038] Primary cleaning: The brush 25 further enhances the cleaning effect, ensuring that the filter always maintains high-efficiency filtering capabilities, and the cylindrical first filter chamber reduces the stirring and brush cleaning dead corners.

[0039] Double-layer filter filtration: After stirring and brush cleaning, the sewage is primary filtered through a double-layer filter 26 to remove larger particles.

[0040] Function of the umbrella-shaped baffle: The filtered water flows to the sedimentation tank 31 through the umbrella-shaped baffle 27 .

[0041] Sedimentation process: After the sewage flows through the umbrella-shaped baffle 27, it enters the sedimentation tank 31 of the sedimentation box 3 for sedimentation. The design of the sedimentation tank helps heavier particles such as silt to settle to the bottom of the tank.

[0042] Clean water discharge: The clean water after sedimentation flows to the bottom of the box body 1 through the sedimentation pipe and the two-way interface, and is discharged from the water outlet 14 on the side wall, completing the entire sludge filtration process.

[0043] Maintenance and cleaning: The device is easy to maintain and clean due to the stirring roller, stirring paddle and brush. These parts can be checked and replaced regularly to ensure the filtering effect.

[0044] The entire working process achieves efficient sludge filtration and clean water discharge through structural optimization and functional coordination, thereby improving the efficiency and quality of sewage treatment.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge filtering device, comprising a box (1), wherein the box (1) is rectangular and has an open top, and is characterized in that: The box body (1) comprises a first filter chamber and a second filter chamber, the first filter chamber is arranged at the upper half of the box body (1) and communicates with the opening at the top, the second filter chamber is arranged at the lower half of the box body (1) and communicates with the bottom of the first filter chamber, the first filter chamber is cylindrical, the second filter chamber is rectangular, a stirring filter device is arranged in the first filter chamber, and a sedimentation filter device is arranged in the second filter chamber, the stirring filter device comprises a cover plate (2) arranged at the top opening of the box body (1), a motor (22) is arranged above the cover plate (2), a water inlet (21) is arranged on one side of the motor (22), a stirring roller (23) is arranged below the cover plate (2), the top end of the stirring roller (23) passes through the cover plate (2) and is connected to the output end of the motor (22), and the bottom end extends into the first filter chamber, a stirring paddle (24) is fixedly connected to the side of the bottom end of the stirring roller (23), a brush (25) is fixedly connected to the bottom of the stirring paddle (24), and the brush (25) is A double-layer filter screen (26) is provided at the bottom, a first limiting edge (11) is provided at the bottom of the double-layer filter screen (26), the first limiting edge (11) is annular, and the outer side surface is fixedly connected to the side wall of the first filter chamber, an umbrella-shaped baffle (27) is fixedly connected to the center of the bottom of the double-layer filter screen (26), and the sedimentation filtering device comprises a sedimentation box (3) arranged below the umbrella-shaped baffle (27), a sedimentation tank (31) is provided at the top of the sedimentation box (3), and a double-way connection is provided at the bottom of the sedimentation tank (31). A two-way interface (33) is provided, the top end of the two-way interface (33) being threadedly connected with a sedimentation tube (32), the bottom end of the two-way interface (33) extending to the bottom of the sedimentation tank (31), the two sides of the bottom of the sedimentation tank (31) being provided with second limiting edges (13) fixedly connected to the inner side wall of the box body (1), the side wall of the box body (1) being provided with an installation opening (12), the sedimentation tank (31) being inserted into the interior of the box body (1) through the installation opening (12), and the bottom side wall of the box body (1) being provided with a water outlet (14).

2. A sludge filtering device according to claim 1, characterized in that: The cover plate (2) is in a stepped shape.

3. A sludge filtering device according to claim 1, characterized in that: The double-layer filter (26) comprises a first filter (262), a second filter (263) and a support frame (261); the support frame (261) is annular, the top of the support frame is screwed to the first filter (262) by screws, and the bottom of the support frame is screwed to the second filter (263) by screws; the brush (25) is in contact with the top surface of the first filter (262).

4. A sludge filtering device according to claim 3, characterized in that: The filter holes of the first filter screen (262) are larger than the filter holes of the second filter screen (263).

5. A sludge filtering device according to claim 1, characterized in that: The sedimentation pipe (32) is arranged below the umbrella-shaped baffle (27), and the bottom end area of ​​the umbrella-shaped baffle (27) is larger than the top end of the sedimentation pipe (32) and smaller than the notch of the sedimentation tank (31).

6. A sludge filtering device according to claim 1, characterized in that: A handle (34) is provided on the outer side of the sedimentation box (3), and a handle groove (35) is provided on the top surface of the handle (34).

7. A sludge filtering device according to claim 1, characterized in that: The sedimentation box (3) is provided with retaining edges (36) around the outer side surface.

8. A sludge filtering device according to claim 1, characterized in that: The stirring paddles (24) are provided in two groups, one at the top and the other at the bottom.

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