Self-cleaning stacked spiral sludge dewatering machine

By introducing cleaning components and external cleaning components into the screw press sludge dewatering machine, the problem of pollutant residue on the inner wall of the flocculation box was solved, achieving efficient cleaning, reducing environmental pollution and equipment blockage, and improving work efficiency.

CN223496351UActive Publication Date: 2025-10-31JIANGSU DAWEI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202422438941.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-10
Publication Date
2025-10-31
Estimated Expiration
2034-10-10

AI Technical Summary

Technical Problem

When using a screw press sludge dewatering machine, residual pollutants inside the flocculation box can cause foul gases to pollute the environment.

Method used

A self-cleaning screw press sludge dewatering machine was designed, which adopts a cleaning component and an external cleaning component. The cleaning component moves inside the flocculation box by driving the lead screw through the drive motor. It uses nozzles to spray cleaning liquid to remove sludge from the inner wall of the flocculation box. The external cleaning component cleans the outer surface of the screw press, reducing sludge adhesion and filter clogging.

Benefits of technology

It improves the cleanliness of the flocculation box, reduces machine blockage, increases work efficiency, and reduces the risk of environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-cleaning stacked spiral sludge dewatering machine which comprises a main body unit, the main body unit comprises a base, a flocculation box and a dewatering machine main body are fixedly connected to the two sides of the upper surface of the base respectively, a cover plate is arranged on the upper surface of the flocculation box, and a driving motor is fixedly connected to one side of the upper surface of the cover plate; a screw rod is fixedly connected to the output end of the driving motor, a cleaning assembly is arranged on the outer surface of the screw rod, an external cleaning assembly is arranged in the dehydrator main body, a second water conveying pipe is fixedly connected to the interior of the dehydrator main body, and a plurality of second nozzles are fixedly connected to the lower surface of the second water conveying pipe. Sludge in the flocculation box can be conveniently scraped through the cleaning assembly, the cleanliness of the interior of the flocculation box is improved, meanwhile, the outer surface of the stacked screw machine can be cleaned through the external cleaning assembly, the cleaning effect is improved, the working efficiency is improved, and environmental pollution is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of sludge dewatering technology, and in particular to a self-cleaning screw press sludge dewatering machine. Background Technology

[0002] In industrial production, wastewater treatment is one of the major environmental issues. After sedimentation, wastewater produces a large amount of sludge. Even after concentration and digestion, the high water content results in a large volume that is difficult to dispose of. Therefore, it must undergo dewatering, which requires the use of sludge dewatering machines. Common sludge dewatering machines include plate and frame sludge dewatering machines, belt sludge dewatering machines, and screw press sludge dewatering machines. When using a screw press sludge dewatering machine, the wastewater is mixed with flocculants, resulting in a large amount of pollutants remaining inside the flocculant tank, causing the generation of foul gases that pollute the environment. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the current self-cleaning screw press sludge dewatering machine, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a self-cleaning screw press sludge dewatering machine, which aims to solve the problem that "when the screw press sludge dewatering machine is in use, it mixes sewage with flocculant, resulting in a large amount of pollutants remaining inside the flocculant box, causing the generation of foul gases inside and polluting the environment."

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a self-cleaning screw press sludge dewatering machine, comprising:

[0007] The main unit includes a base, on which a flocculation box and a dewatering machine body are fixedly connected to both sides of the upper surface of the base, respectively. The flocculation box and the dewatering machine body are connected by a pipe. A cover plate is provided on the upper surface of the flocculation box, and a drive motor is fixedly connected to one side of the upper surface of the cover plate. A lead screw is fixedly connected to the output end of the drive motor, and a cleaning component is provided on the outer surface of the lead screw. An external cleaning component is provided inside the dewatering machine body, and a second water supply pipe is fixedly connected inside the dewatering machine body. Multiple second nozzles are fixedly connected to the lower surface of the second water supply pipe.

[0008] In a preferred embodiment of the self-cleaning screw press sludge dewatering machine of this utility model, the lower end of the screw penetrates the outer surface of the cover plate and is rotatably connected to the inner bottom wall of the flocculation box, and a water inlet pipe is fixedly connected to the other side of the upper surface of the cover plate.

[0009] In a preferred embodiment of the self-cleaning screw press sludge dewatering machine of this utility model, the cleaning component includes a cleaning frame, the outer surface of which is attached to the inner wall of the flocculation box, a plurality of first nozzles are fixedly connected to the outer edge of the cleaning frame, connecting sleeves are provided inside both sides of the cleaning frame, one of the connecting sleeves is internally threaded to the outer surface of a lead screw, a first water supply pipe is provided inside the cleaning frame, and the input end of the first nozzle is fixedly connected to the inside of the first water supply pipe.

[0010] In a preferred embodiment of the self-cleaning screw press sludge dewatering machine of this utility model, a sliding rod is slidably connected inside the connecting sleeve on the other side, and a baffle is fixedly connected to the upper end of the sliding rod. The middle parts of the cleaning frame and the baffle are both hollow.

[0011] As a preferred embodiment of the self-cleaning screw press sludge dewatering machine of this utility model, the external cleaning component includes a cleaning ring. The inner wall of the cleaning ring is attached to the outside of the screw press inside the main body of the dewatering machine. A screw is threadedly connected to the upper part of one outer surface of the cleaning ring, and a rotating blade is fixedly connected to the other side of the outer surface of the screw. The rotating blade is disposed on the lower surface of one of the second nozzles.

[0012] As a preferred embodiment of the self-cleaning screw press sludge dewatering machine of this utility model, the outer surfaces of both sides of the cleaning ring are slidably connected to limit rods, and the two ends of the limit rods are fixedly connected to the inside of the dewatering machine body.

[0013] The beneficial effects of this utility model are:

[0014] The cleaning components facilitate the scraping of sludge inside the flocculation box, improving its cleanliness. Meanwhile, the external cleaning components clean the outer surface of the screw press, enhancing cleaning effectiveness, reducing machine blockage, increasing work efficiency, and minimizing environmental pollution. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a perspective view of a self-cleaning screw press sludge dewatering machine proposed in this utility model;

[0017] Figure 2 for Figure 1 A cross-sectional view of the flocculation box;

[0018] Figure 3 for Figure 1 A schematic diagram of the cleaning components;

[0019] Figure 4 for Figure 1 A schematic diagram of the external cleaning components;

[0020] Figure 5 for Figure 4 A magnified view of a portion of the image.

[0021] In the diagram: 100, main unit; 101, base; 102, flocculation box; 103, dewatering machine body; 104, cover plate; 105, drive motor; 106, lead screw; 107, cleaning component; 107a, cleaning frame; 107b, first nozzle; 107c, connecting sleeve; 107d, first water supply pipe; 107e, slide bar; 108, baffle; 109, external cleaning component; 109a, cleaning ring; 109b, screw; 109c, rotating blade; 109d, limiting rod; 110, second water supply pipe; 111, second nozzle. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] Reference Figure 1-5 This utility model provides a self-cleaning screw press sludge dewatering machine, comprising:

[0027] The main unit 100 includes a base 101. A flocculation box 102 and a dewatering machine body 103 are fixedly connected to both sides of the upper surface of the base 101, respectively. The flocculation box 102 and the dewatering machine body 103 are connected by a pipe. A cover plate 104 is provided on the upper surface of the flocculation box 102. A drive motor 105 is fixedly connected to one side of the upper surface of the cover plate 104. A lead screw 106 is fixedly connected to the output end of the drive motor 105. A cleaning component 107 is provided on the outer surface of the lead screw 106. An external cleaning component 109 is provided inside the dewatering machine body 103. A second water supply pipe 110 is fixedly connected inside the dewatering machine body 103. Multiple second nozzles 111 are fixedly connected to the lower surface of the second water supply pipe 110. The lower end of the lead screw 106 passes through the outer surface of the cover plate 104 and is rotatably connected to the inner bottom wall of the flocculation box 102. A water inlet pipe is fixedly connected to the other side of the upper surface of the cover plate 104. The flocculation box 102 receives wastewater containing sludge through the inlet pipe. After flocculation treatment, the water is transported to the dewatering machine body 103 through the pipeline. The external cleaning component 109 inside the dewatering machine body 103 works with the second nozzle 111 to clean the filter screen by spraying high-pressure water to prevent the filter screen from clogging and maintain dewatering efficiency. The drive motor 105 drives the cleaning component 107 to clean inside the flocculation box 102 by rotating the lead screw 106, thereby removing sludge and solid residue and ensuring flocculation efficiency.

[0028] The cleaning component 107 includes a cleaning frame 107a, the outer surface of which is attached to the inner wall of the flocculation box 102. Multiple first nozzles 107b are fixedly connected to the outer edge of the cleaning frame 107a. Connecting sleeves 107c are provided inside both sides of the cleaning frame 107a. One of the connecting sleeves 107c is internally threaded to the outer surface of a lead screw 106. A first water supply pipe 107d is provided inside the cleaning frame 107a, and the input end of each first nozzle 107b is fixedly connected inside the first water supply pipe 107d. A sliding rod 107e is slidably connected inside the connecting sleeve 107c on the other side. A baffle 108 is fixedly connected to the upper end of the sliding rod 107e. Both the cleaning frame 107a and the baffle 108 are hollow in the middle. The lead screw 106 drives a connecting sleeve 107c to move, thereby guiding the cleaning frame 107a to move along the inner wall of the flocculation box 102. This, combined with the first nozzle 107b spraying water from the first water supply pipe 107d, achieves efficient cleaning of the inner wall of the flocculation box 102. The design of the slide bar 107e allows the cleaning frame 107a to maintain a tight fit during movement, thus improving the cleaning effect. The baffle 108 helps control the cleaning area.

[0029] Furthermore, the external cleaning assembly 109 includes a cleaning ring 109a. The inner wall of the cleaning ring 109a is fitted to the outside of the screw press inside the dewatering machine body 103. A screw 109b is threadedly connected to the upper part of one outer surface of the cleaning ring 109a, and a rotating blade 109c is fixedly connected to the other outer surface of the screw 109b. The rotating blade 109c is disposed on the lower surface of one of the second nozzles 111. Limiting rods 109d are slidably connected to both outer surfaces of the cleaning ring 109a, and the two ends of the limiting rods 109d are fixedly connected to the inside of the dewatering machine body 103. The cleaning ring 109a is attached to the outside of the screw press to clean the outer surface of the screw press. The screw 109b is connected to the cleaning ring 109a through its upper thread. The water flow drives the rotating blade 109c to rotate, which in turn drives the screw 109b to rotate, making it easy to control the movement of the cleaning ring 109a. The limit rod 109d ensures that the cleaning ring 109a maintains the correct position when moving, preventing it from colliding with the screw press, thus effectively cleaning the outer surface without affecting the stable operation of the equipment.

[0030] During use, the drive motor 105 is first started, which drives the cleaning component 107 to move via the lead screw 106. The cleaning liquid is delivered through the first water pipe 107d, sprayed through the first nozzle 107b, and then cleaned through the cleaning frame 107a, thus achieving automatic cleaning of the flocculation box 102. Furthermore, the outer surface of the screw press inside the dewatering machine body 103 is rinsed through the second water pipe 110 and the second nozzle 111. The water flow drives the rotating blade 109c to rotate, which in turn drives the cleaning ring 109a to slide on the outer surface through the screw 109b, reducing the adhesion of sludge, reducing the clogging of the filter screen, and improving processing efficiency.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A self-cleaning screw press sludge dewatering machine, characterized in that: include: The main unit (100) includes a base (101). A flocculation box (102) and a dewatering machine body (103) are fixedly connected to both sides of the upper surface of the base (101). The flocculation box (102) and the dewatering machine body (103) are connected by a pipe. A cover plate (104) is provided on the upper surface of the flocculation box (102). A drive motor (105) is fixedly connected to one side of the upper surface of the cover plate (104). A lead screw (106) is fixedly connected to the output end of the drive motor (105). A cleaning component (107) is provided on the outer surface of the lead screw (106). An external cleaning component (109) is provided inside the dewatering machine body (103). A second water supply pipe (110) is fixedly connected inside the dewatering machine body (103). A plurality of second nozzles (111) are fixedly connected to the lower surface of the second water supply pipe (110).

2. The self-cleaning screw press sludge dewatering machine according to claim 1, characterized in that: The lower end of the lead screw (106) passes through the outer surface of the cover plate (104) and is rotatably connected to the inner bottom wall of the flocculation box (102). A water inlet pipe is fixedly connected to the other side of the upper surface of the cover plate (104).

3. The self-cleaning screw press sludge dewatering machine according to claim 1, characterized in that: The cleaning component (107) includes a cleaning frame (107a), the outer surface of which is attached to the inner wall of the flocculation box (102). A plurality of first nozzles (107b) are fixedly connected to the outer edge of the cleaning frame (107a). A connecting sleeve (107c) is provided inside both sides of the cleaning frame (107a). The inner thread of one of the connecting sleeves (107c) is connected to the outer surface of the lead screw (106). A first water supply pipe (107d) is provided inside the cleaning frame (107a). The input end of the first nozzle (107b) is fixedly connected to the inside of the first water supply pipe (107d).

4. The self-cleaning screw press sludge dewatering machine according to claim 3, characterized in that: On the other side, a sliding rod (107e) is slidably connected inside the connecting sleeve (107c). A baffle (108) is fixedly connected to the upper end of the sliding rod (107e). The middle parts of the cleaning frame (107a) and the baffle (108) are hollow.

5. The self-cleaning screw press sludge dewatering machine according to claim 1, characterized in that: The external cleaning assembly (109) includes a cleaning ring (109a), the inner wall of which is attached to the outside of the screw press inside the dewatering machine body (103). A screw (109b) is threadedly connected to the upper part of one outer surface of the cleaning ring (109a), and a rotating blade (109c) is fixedly connected to the other side of the outer surface of the screw (109b). The rotating blade (109c) is disposed on the lower surface of one of the second nozzles (111).

6. A self-cleaning screw press sludge dewatering machine according to claim 5, characterized in that: Limiting rods (109d) are slidably connected to the outer surfaces of both sides of the cleaning ring (109a), and the two ends of the limiting rods (109d) are fixedly connected to the inside of the dehydrator body (103).