Stacked screw type sludge thickening and dewatering machine

By designing the main unit, material distribution unit and conveying unit of the stacked screw sludge concentration and dewatering machine, the problem of blockage in the sewage inlet is solved, and the smooth transportation and efficient dewatering of the sludge are achieved.

CN223239972UActive Publication Date: 2025-08-19JIANGSU DAWEI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202421966542.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-14
Publication Date
2025-08-19
Estimated Expiration
2034-08-14

AI Technical Summary

Technical Problem

When used, the existing stacked screw sludge dewatering machine has a single and small inlet, which can easily lead to floc accumulation and blockage, affecting the sludge transport efficiency.

Method used

A stacked screw sludge concentration and dewatering machine is designed, including a main unit, a feeding unit and a conveying unit. Through the cooperation of the U-shaped cutting port, a rotating rod and a shaking block, the cutting is controlled by gravity and a micro motor to prevent blockage, and the sludge is transported through the spiral shaft.

Benefits of technology

It effectively prevents the accumulation and blockage of the dewatering tank, ensures the smooth flow of sewage and improves the smoothness and efficiency of sludge transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stacked screw type sludge thickening and dewatering machine which structurally comprises a main body unit, a dewatering box, a filter screen and a water pump, the main body unit comprises a support, a dewatering box is fixedly mounted on the support, filter holes are formed in the bottom of the dewatering box, and a filtrate outlet is further fixedly connected to the bottom of the dewatering box; the material distributing unit comprises a U-shaped discharging opening. When the device is used, sewage enters the U-shaped feed opening through the sewage pipe, when the quantity of sewage on the right side of the partition plate of the shaking block is larger, the shaking block rotates on the rotating rod due to the gravity factor, so that the shaking block inclines rightwards, the sewage enters the dewatering box from the U-shaped feed opening on the right side, and at the moment, a triangular area formed by the partition plate and the left side of the shaking block receives more sewage; the shaking block inclines leftwards, so that the sewage enters the dewatering box from the left U-shaped discharging port, the sewage enters the dewatering box through the two discharging parts, accumulation of the discharging parts in the dewatering box is prevented, smooth discharging of the sewage can be guaranteed, and the spiral shaft can convey the sewage more smoothly.
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Description

Technical Field

[0001] The utility model relates to the technical field of sludge concentration and dehydration, in particular to a screw stacking type sludge concentration and dehydration machine. Background Art

[0002] The spiral stacking sludge dewatering machine, also known as the spiral stacking machine, is an effective sewage treatment equipment and is widely used in sludge dewatering treatment in municipal and industrial fields.

[0003] A multi-stage spiral sludge thickening and dewatering machine disclosed in publication number CN220502885U, although the utility model uses a pipeline to let the sludge enter the interior of the dewatering machine shell through the sewage inlet, and through the first-stage dewatering mechanism, the second-stage dewatering mechanism, and the third-stage dewatering mechanism inside the dewatering machine shell, the water-containing sludge is dewatered in three stages, and the sludge can be squeezed and drained in three stages to improve the drainage effect of the sludge; the beating piece works to continuously beat the outer wall of the dewatering cylinder, and uses vibration to separate the sludge adhering to the inner wall of the dewatering cylinder, thereby reducing the amount of sludge adhering to the inner wall of the dewatering cylinder and facilitating later cleaning.

[0004] However, when the sludge thickening and dewatering machine is in use, the pollutants in the sewage need to be stirred into flocs by a flocculant first, and then enter the dehydration body through the sewage inlet for dehydration treatment. The sewage inlet of this utility model is single and small, and it is very likely that flocs will accumulate and become blocked, which is inconvenient for the spiral shaft to transport the sludge. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] Therefore, in order to solve the above technical problems, the present invention provides the following technical solutions: a screw stack sludge thickening and dehydrating machine, the screw stack sludge thickening and dehydrating machine comprising:

[0007] The main unit includes a bracket, a dehydration box is fixedly mounted on the bracket, a filter hole is opened at the bottom of the dehydration box, and a filtrate outlet is fixedly connected to the bottom of the dehydration box;

[0008] The material distribution unit includes a U-shaped discharge port, the U-shaped discharge port is fixedly installed on the top of the dehydration box, the side wall of the U-shaped discharge port is rotatably connected to a rotating rod, the surface of the rotating rod is rotatably connected to a rocking block, and a partition is fixed in the center of the rocking block;

[0009] The conveying unit includes a spindle motor. The output end of the spindle motor is drivingly connected to a first bevel gear. The surface of the first bevel gear is meshed with a second bevel gear. One end of the second bevel gear is rotatably connected to a spiral shaft.

[0010] As a preferred solution of the screw stack sludge thickening and dewatering machine of the utility model, one side of the dewatering box is fixedly connected to a mud outlet, and one end of the mud outlet is fixedly connected to a mounting box.

[0011] As a preferred solution of the screw stacking sludge thickening and dewatering machine of the utility model, wherein: a lower mud plate is fixedly connected to the bottom of the mud outlet.

[0012] As a preferred solution of the screw stacking sludge thickening and dewatering machine of the present invention, the installation box has an installation groove provided inside, and the first bevel gear is rotatably installed in the installation groove.

[0013] As a preferred solution of the screw stacking sludge thickening and dewatering machine of the utility model, a micro motor is fixedly mounted on the U-shaped discharge port, and the output end of the micro motor is driven and connected to a rotor.

[0014] As a preferred solution of the spiral stacking sludge thickening and dewatering machine of the present invention, a sewage pipe is fixedly mounted on the U-shaped discharge port, and the rotor is rotatably connected to the sewage pipe.

[0015] Beneficial effects of the utility model:

[0016] During use, sewage enters the U-shaped discharge port through the sewage pipe. Since the sewage pipe is installed on the right side, when the amount of sewage on the right side of the partition of the shaking block is larger, it rotates on the rotating rod due to gravity, causing the shaking block to tilt to the right, and the sewage enters the dewatering box from the U-shaped discharge port on the right. At this time, the triangular area formed by the partition and the left side of the shaking block receives more sewage, and the shaking block tilts to the left again, allowing the sewage to enter the dewatering box from the left U-shaped discharge port. The cycle repeats, allowing the sewage to enter the dewatering box through the two discharge locations, preventing accumulation at the discharge location in the dewatering box. At the same time, the rotor is driven to rotate by a micro motor, and the discharge can be stopped when the rotor rotates to be parallel to the U-shaped discharge port, reserving time for the sludge in the U-shaped discharge port to fall, further preventing blockage in the U-shaped discharge port, and thus the device can ensure smooth sewage discharge, so that the spiral shaft can transport sewage more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of the screw stacking sludge thickening and dewatering machine of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the screw shaft of the screw stack type sludge thickening and dewatering machine of the utility model.

[0020] Figure 3 This is a structural schematic diagram of the material distribution unit of the screw stacking sludge thickening and dewatering machine of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the sewage pipe of the screw stacking type sludge thickening and dewatering machine of the utility model.

[0022] Figure 5 This is a schematic diagram of the overall cross-sectional structure of the screw stacking sludge thickening and dewatering machine of the utility model.

[0023] In the figure: 100, main unit; 101, bracket; 102, dehydration box; 1021, mud outlet; 1022, installation box; 1023, lower mud plate; 103, filtrate outlet;

[0024] 200, material dispensing unit; 201, U-shaped discharge port; 2011, micro motor; 2012, rotor; 2013, sewage pipe; 202, rotating rod; 203, shaking block; 204, partition;

[0025] 300 , conveying unit; 301 , spindle motor; 302 , first bevel gear; 303 , second bevel gear; 304 , screw shaft. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate 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 may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" 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 various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included. Example

[0030] Reference Figure 1-5 , which is the first embodiment of the utility model, provides a spiral stacking sludge thickening and dehydrating machine, which includes:

[0031] The main unit 100 includes a bracket 101, on which a dewatering box 102 is fixedly mounted. The bottom of the dewatering box 102 is provided with filter holes, and the bottom of the dewatering box 102 is also fixedly connected to a filtrate outlet 103. During use, the bracket 101 supports the device, increasing the stability of the device during use. The wastewater after adding flocculant is squeezed and dehydrated in the dewatering box 102, so that the dehydrated mud cake is discharged from the mud outlet 1021, and the filtered water is discharged from the filtrate outlet 103 through the filter holes.

[0032] The material distribution unit 200 includes a U-shaped discharge port 201, which is fixedly installed on the top of the dehydration box 102. The side wall of the U-shaped discharge port 201 is rotatably connected to a rotating rod 202, and the surface of the rotating rod 202 is rotatably connected to a shaking block 203. A partition 204 is fixed at the center of the shaking block 203. During use, the flocculants added to the stirring device and the fused flocs and sewage enter the U-shaped discharge port 201 through the sewage pipe 2013. Since the installation position of the sewage pipe 2013 is biased to the right, when the amount of sewage on the right side of the partition 204 of the shaking block 203 is larger, it rotates on the rotating rod 202 due to gravity, causing the shaking block 203 to tilt to the right. The sewage enters the dewatering box 102 from the U-shaped discharge port 201 on the right. At this time, the triangular area formed by the partition 204 and the left side of the shaking block 203 receives more sewage. The shaking block 203 tilts to the left again to allow the sewage to enter the dewatering box 102 from the left U-shaped discharge port 201. The reciprocating cycle allows the sewage to enter the dewatering box 102 through the two discharge locations, preventing accumulation of the discharge location in the dewatering box 102. At the same time, the micro motor 2011 drives the rotor 2012 to rotate. When the rotor 2012 rotates to be parallel to the U-shaped discharge port 201, the discharge can be stopped, reserving time for the sludge in the U-shaped discharge port 201 to fall, further preventing blockage in the U-shaped discharge port 201.

[0033] The conveying unit 300 includes a spindle motor 301. The output end of the spindle motor 301 is driven and connected to the first bevel gear 302. The surface of the first bevel gear 302 is meshed with the second bevel gear 303. One end of the second bevel gear 303 is rotatably connected to the screw shaft 304. During use, the spindle motor 301 is started to drive the first bevel gear 302 to rotate, thereby driving the meshed second bevel gear 303 to rotate, thereby driving the screw shaft 304 to rotate, and the screw shaft 304 transports the flocs and sewage toward the mud outlet 1021.

[0034] Furthermore, a mud outlet 1021 is fixedly connected to one side of the dewatering box 102, and one end of the mud outlet 1021 is fixedly connected to an installation box 1022. The spindle motor 301 is installed on the top of the installation box 1022, and the mud outlet 1021 facilitates the discharge of the dehydrated mud cake.

[0035] Furthermore, a lower mud plate 1023 is fixedly connected to the bottom of the mud outlet 1021, and the inclined lower mud plate 1023 guides the falling of the mud cake, making it convenient to collect the discharged mud cake.

[0036] Furthermore, the mounting box 1022 has an internal mounting groove, and the first bevel gear 302 is rotatably mounted in the mounting groove. The first bevel gear 302 and the second bevel gear 303 are mounted through the mounting groove, which facilitates the second bevel gear 303 to drive the rotation of the spiral shaft 304.

[0037] Furthermore, a micro motor 2011 is fixedly installed on the U-shaped discharge port 201, and the output end of the micro motor 2011 is driven and connected to a rotor 2012. The rotor 2012 is driven to rotate by the micro motor 2011. When the rotor 2012 rotates to be parallel to the U-shaped discharge port 201, the discharge can be stopped, and time is reserved for the sludge in the U-shaped discharge port 201 to fall, thereby preventing blockage.

[0038] Furthermore, a sewage pipe 2013 is fixedly installed on the U-shaped discharge port 201 , and the rotating piece 2012 is rotatably connected to the sewage pipe 2013 , so that the flocs and sewage can be transported to the U-shaped discharge port 201 through the sewage pipe 2013 .

[0039] During use, first, flocculant is added to the stirring device, and the fused flocs and sewage enter the U-shaped discharge port 201 through the sewage pipe 2013. Since the sewage pipe 2013 is installed on the right side, when the amount of sewage on the right side of the partition 204 of the shaking block 203 is larger, the shaking block 203 rotates on the rotating rod 202 due to gravity, causing the shaking block 203 to tilt to the right, and the sewage enters the dewatering box 102 from the right U-shaped discharge port 201. At this time, the triangular area formed by the partition 204 and the left side of the shaking block 203 receives more sewage, and the shaking block 203 tilts to the left again, causing the sewage to enter the dewatering box 102 from the left U-shaped discharge port 201;

[0040] Then, by repeating the above operation, the sewage enters the dewatering box 102 through the two discharge locations, preventing the discharge location in the dewatering box 102 from accumulating. At the same time, the micro motor 2011 drives the rotor 2012 to rotate. When the rotor 2012 rotates to be parallel to the U-shaped discharge port 201, the discharge can be stopped, giving the sludge in the U-shaped discharge port 201 time to fall, further preventing the U-shaped discharge port 201 from being blocked.

[0041] Finally, the spindle motor 301 is started to drive the first bevel gear 302 to rotate, which in turn drives the meshed second bevel gear 303 to rotate, thereby driving the screw shaft 304 to rotate. The screw shaft 304 transports the flocs and sewage toward the mud outlet 1021. The sludge is squeezed and dehydrated in the dewatering box 102. The dehydrated mud cake is discharged from the mud outlet 1021, and the filtered water is discharged from the filtrate outlet 103 through the filter holes.

[0042] It is worth noting that the entire device is controlled by a controller. Since the controller is a commonly used device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A screw stack sludge thickening and dewatering machine, characterized by: include, The main unit (100) comprises a bracket (101), a dehydration box (102) is fixedly mounted on the bracket (101), a filter hole is provided at the bottom of the dehydration box (102), and a filtrate outlet (103) is also fixedly connected to the bottom of the dehydration box (102); The material distribution unit (200) comprises a U-shaped discharge port (201), wherein the U-shaped discharge port (201) is fixedly mounted on the top of the dehydration box (102), a rotating rod (202) is rotatably connected to the side wall of the U-shaped discharge port (201), a shaking block (203) is rotatably connected to the surface of the shaking block (203), and a partition (204) is fixed at the center of the shaking block (203); The conveying unit (300) comprises a spindle motor (301), wherein the output end of the spindle motor (301) is drivingly connected to a first bevel gear (302), a second bevel gear (303) is meshed with a surface of the first bevel gear (302), and one end of the second bevel gear (303) is rotatably connected to a screw shaft (304).

2. The screw-type sludge thickening and dewatering machine according to claim 1, characterized in that: A mud outlet (1021) is fixedly connected to one side of the dewatering box (102), and an installation box (1022) is fixedly connected to one end of the mud outlet (1021).

3. The screw-type sludge thickening and dewatering machine according to claim 2, characterized in that: A lower mud plate (1023) is fixedly connected to the bottom of the mud outlet (1021).

4. The screw stack sludge thickening and dewatering machine according to claim 2, characterized in that: The installation box (1022) has an installation groove formed inside, and the first bevel gear (302) is rotatably installed in the installation groove.

5. The screw stack sludge thickening and dewatering machine according to claim 1, characterized in that: A micro motor (211) is fixedly mounted on the U-shaped discharge port (201), and an output end of the micro motor (2011) is drivingly connected to a rotating piece (212).

6. The screw stack sludge thickening and dewatering machine according to claim 5, characterized in that: A sewage pipe (2013) is also fixedly mounted on the U-shaped discharge port (201), and the rotating piece (212) is rotatably connected to the sewage pipe (2013).

Citation Information

Patent Citations

  • Multi-stage spiral sludge thickening and dewatering machine

    CN220502885U