Sludge dewatering device for sewage treatment

Abstract

The utility model relates to the field of sludge dewatering in sewage treatment, and discloses a sludge dewatering device for sewage treatment, which comprises a support frame, a shell is fixedly connected to the inner side of the support frame, a dewatering barrel is arranged on the inner wall of the shell, an extrusion part is arranged on the inner wall of the dewatering barrel, and a blanking hopper is arranged at the upper part of the shell. An anti-blocking mechanism is arranged on the upper portion of the shell and comprises an anti-blocking assembly and a pushing assembly, and the anti-blocking assembly comprises a supporting plate. According to the sludge dewatering device disclosed by the utility model, through matched use of the anti-blocking mechanism and the discharging hopper, when sludge with different moisture contents is dewatered, the driving disc can be driven to rotate to extrude the moving plate while the extruding piece is driven to rotate by the driving motor, so that the material rod and the pushing plate are driven to move synchronously; sludge in the discharging hopper is driven to vibrate and be pushed through reciprocating movement of the discharging hopper, the blocking condition is prevented, and the working efficiency of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of sludge dewatering in sewage treatment, and more particularly to a sludge dewatering device for sewage treatment. Background Technology

[0002] In the entire process of wastewater treatment, sludge dewatering is a crucial step. With the acceleration of industrialization and urbanization, the amount of wastewater discharged has increased dramatically, and the amount of sludge produced has also become increasingly large. This sludge has a complex composition, containing not only a large amount of water, but also potentially harmful substances such as heavy metals, pathogens, and organic pollutants. If it is discharged or disposed of directly without effective dewatering treatment, it will cause serious environmental pollution, occupy a large amount of land resources, and may also cause secondary pollution problems.

[0003] A search revealed Chinese Patent Publication No. CN221181795U, which discloses a sludge dewatering device for wastewater treatment. This device includes a main body with a filter plate at its bottom. A protective shell is fixedly connected to the bottom of the filter plate, and a motor is fixedly connected inside the protective shell. The output shaft of the motor is fixedly connected to a rotating rod via a coupling. A stirring blade is fixedly connected to the outer wall of the rotating rod, and a connecting rod is fixedly connected to the outer wall of the rotating rod. A scraper is fixedly connected to one side of the connecting rod. This invention, through the coordinated use of the main body, support frame, legs, protective pad, protective shell, motor, rotating rod, stirring blade, connecting rod, scraper, and filter plate, can scrape off the sludge adhering to the inner wall of the device for dewatering, resulting in higher dewatering quality. This allows users to efficiently dewater sludge, separating water and sludge, and improving the device's dewatering efficiency.

[0004] While the aforementioned technologies can scrape off sludge adhering to the inner wall of the device for dewatering, the sludge has varying water content and flowability during dewatering. Furthermore, the lack of a vibration mechanism at the inlet of the device leads to blockage, thus affecting the dewatering efficiency. Therefore, a sludge dewatering device for wastewater treatment is proposed to address these issues. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a sludge dewatering device for sewage treatment, which aims to improve the problem in the prior art that "due to the different water content of sludge, the lack of a vibration mechanism at the feed inlet of the above device will cause the feed inlet to be blocked, affecting the dewatering efficiency".

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a sludge dewatering device for sewage treatment, comprising a support frame, an outer shell fixedly connected to the inner side of the support frame, a dewatering barrel provided on the inner wall of the outer shell, an extrusion member provided on the inner wall of the dewatering barrel, a feeding hopper provided on the upper part of the outer shell, and an anti-clogging mechanism provided on the upper part of the outer shell, the anti-clogging mechanism comprising an anti-clogging component and a pushing component, the anti-clogging component comprising a support plate, the support plate fixedly connected to the upper part of the outer shell, a drive motor provided on the upper part of the support plate, the output shaft of the drive motor fixedly connected to the upper part of the extrusion member, a drive disc fixedly connected to the output shaft of the drive motor, the drive disc being elliptical in shape, a movable plate slidably connected to the inner wall of the support plate, the movable plate being elastically connected to the feeding hopper by a compression spring, a fixed rod fixedly connected to the outer side of the movable plate, and a material rod fixedly connected to the upper part of the fixed rod.

[0007] As a further description of the above technical solution:

[0008] The pushing assembly includes a pushing plate, which is fixedly connected to the outside of the material rod and slides on the inner wall of the hopper. The front part of the pushing plate is set as an inclined surface, and the rear part of the pushing plate is set as a cylinder.

[0009] As a further description of the above technical solution:

[0010] A round rod is fixedly connected to the rear side of the hopper. The round rod slides through the inner wall of the moving plate, and the compression spring is sleeved around the round rod.

[0011] As a further description of the above technical solution:

[0012] One end of the compression spring is fixedly connected to the outside of the hopper, and the other end of the compression spring is fixedly connected to the outside of the moving plate.

[0013] As a further description of the above technical solution:

[0014] A fixing block is fixedly connected to the outside of the hopper, and the fixing rod slides through the inner wall of the fixing block.

[0015] As a further description of the above technical solution:

[0016] The dehydration barrel has water outlet holes evenly distributed on its outer side. A collection component is provided on the outer side of the dehydration barrel. The collection component includes a shielding component, which is fixedly connected to the outer side of the dehydration barrel and is located below the water outlet holes. A squeezing plate is fixedly connected to the bottom of the outer shell.

[0017] As a further description of the above technical solution:

[0018] The shielding element is arranged around the outside of the dehydration tank and is inclined.

[0019] As a further description of the above technical solution:

[0020] The outer side of the extruder is attached to the inner wall of the dehydration barrel, and the lower inner wall of the hopper is set as an inclined surface.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by using the anti-clogging mechanism and the feeding hopper together, when dewatering sludge with different moisture contents, the drive motor drives the extruder to rotate, which in turn drives the drive disc to rotate and extrude the moving plate. This causes the material rod and the push plate to move synchronously. Through their reciprocating movement, the sludge in the feeding hopper vibrates and is pushed, preventing clogging and improving the working efficiency of the device.

[0023] 2. In this utility model, by using the auxiliary components and the dewatering bucket together, when dewatering sludge, the mud and water are discharged through the water outlet on the dewatering bucket. At the same time as drainage, the shielding component can prevent the mud and water from flowing into the water outlet below, thereby improving the drainage efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0025] Figure 2 This is a bottom-view three-dimensional structural diagram of the overall device in this utility model;

[0026] Figure 3 This is a rear-view three-dimensional cross-sectional view of the outer shell and the dehydration bucket in this utility model;

[0027] Figure 4 This is a bottom-view three-dimensional structural diagram of the lower hopper of this utility model;

[0028] Figure 5 This is a three-dimensional structural diagram of the material rod and push plate in this utility model.

[0029] Legend:

[0030] 1. Support frame; 2. Outer shell; 3. Dehydration drum; 4. Extrusion component; 5. Feed hopper; 61. Support plate; 62. Drive motor; 63. Drive disc; 64. Moving plate; 65. Compression spring; 66. Fixing rod; 67. Material rod; 68. Pushing plate; 71. Blocking component; 72. Extrusion plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a sludge dewatering device for sewage treatment, including a support frame 1 for supporting a shell 2. The shell 2 is fixedly connected to the inner side of the support frame 1 for supporting a dewatering barrel 3 and an anti-clogging mechanism. The inner wall of the shell 2 is provided with a dewatering barrel 3, which cooperates with an extruder 4 to dewater the sludge. The extruder 4 is provided on the inner wall of the dewatering barrel 3, and its outer side is set in an auger shape. When it rotates under the drive of a drive motor 62, it can not only apply extrusion force to the sludge, causing the water in the sludge to be discharged through the water outlet of the dewatering barrel 3, but also the outer side of the extruder 4 is attached to the inner wall of the dewatering barrel 3 and scrapes against the inner wall of the dewatering barrel 3 during rotation to prevent the sludge from adhering to the barrel wall, thus ensuring the normal operation and dewatering effect of the dewatering barrel 3.

[0033] Furthermore, a hopper 5 is provided on the upper part of the outer shell 2 to guide the sludge to be dewatered into the dewatering tank 3. The lower inner wall of the hopper 5 is set as an inclined surface to facilitate the sludge to slide smoothly under the action of gravity, reducing the risk of sludge residue and blockage in the hopper. An anti-blocking mechanism is provided on the upper part of the outer shell 2. The anti-blocking mechanism includes an anti-blocking component and a pushing component. The anti-blocking component includes a support plate 61 for supporting the drive motor 62. The support plate 61 is fixedly connected to the upper part of the outer shell 2. The drive motor 62, which is a geared motor, is provided on the upper part of the support plate 61 to provide power to the extrusion part 4 and drive the drive disk 63 to rotate. This technology is prior art, so it will not be described in detail.

[0034] Reference Figure 3 - Figure 5The output shaft of the drive motor 62 is fixedly connected to the upper part of the extrusion piece 4. The output shaft of the drive motor 62 is fixedly connected to the drive disc 63, which is elliptical in shape. When rotating, the drive disc 63 can extrude the moving plate 64, thereby driving the fixed rod 66 to move. The moving plate 64 is slidably connected to the inner wall of the support plate 61, connecting two sets of fixed rods 66. The moving plate 64 is elastically connected to the hopper 5 through a compression spring 65. One end of the compression spring 65 is fixedly connected to the outside of the hopper 5, and the other end is fixedly connected to the outside of the moving plate 64. The elastic force of the compression spring 65 can drive the moving plate 64 to reset. The fixed rod 66 is fixedly connected to the outside of the moving plate 64, which is used to connect the material rod 67 and the moving plate 64. The material rod 67 is fixedly connected to the upper part of the fixed rod 66, which can reciprocate to swing the sludge in the hopper 5, increase the fluidity of sludge with different moisture contents, prevent clogging, and improve the working efficiency of the device.

[0035] Reference Figure 1 and Figure 5 The pushing component includes a pushing plate 68, which is fixedly connected to the outside of the material rod 67. The pushing plate 68 slides on the inner wall of the hopper 5. The front part of the pushing plate 68 is set as an inclined surface, and the rear part of the pushing plate 68 is set as a cylinder. When the material rod 67 moves, it drives the pushing plate 68 to move synchronously, which can convey and squeeze the sludge and send the hopper 5 into the dewatering tank 3. A round rod is fixedly connected to the rear side of the hopper 5, which can increase the stability of the moving plate 64. The round rod slides through the inner wall of the moving plate 64. A compression spring 65 is sleeved on the outer side of the round rod. A fixing block is fixedly connected to the outside of the hopper 5. The fixing rod 66 slides through the inner wall of the fixing block, which can improve the stability of the fixing rod 66.

[0036] Reference Figure 2 and Figure 3 The dewatering barrel 3 has evenly spaced water outlets on its outer side for discharging the dewatered mud and water. A collection assembly is provided on the outer side of the dewatering barrel 3, which includes a shield 71. The shield 71 is fixedly connected to the outer side of the dewatering barrel 3 and is located near the bottom of the water outlet. The shield 71 is arranged around the outer side of the dewatering barrel 3 and is inclined to effectively prevent the mud and water discharged from the upper water outlet from flowing directly to the lower water outlet, thereby improving drainage efficiency. A squeezing plate 72 is fixedly connected to the bottom of the outer shell 2. When discharging the dewatered sludge, pressure is applied by the squeezing plate 72 to shape the sludge, making it easier to process again later.

[0037] Working principle: During use, the sludge to be dewatered enters the device through the hopper 5 at the top of the outer shell 2 and the drive motor 62 is started. Its output shaft drives the extruder 4 to rotate for dewatering. At the same time, it drives the elliptical drive disc 63 to rotate. During the rotation of the drive disc 63, due to its elliptical shape, it will periodically squeeze the moving plate 64. The moving plate 64 slides on the inner wall of the support plate 61 and is elastically connected to the hopper 5 through the compression spring 65. When squeezed, the moving plate 64 moves against the spring force. After the drive disc 63 leaves, the spring force makes the moving plate 64 return to its original position. This achieves reciprocating motion. The reciprocating motion of the moving plate 64 drives the fixed rod 66 and the material rod 67 to move back and forth synchronously. The push plate 68 on the material rod 67 also moves accordingly. The inclined surface at the front of the push plate 68 can push away the accumulated sludge, and the cylindrical structure at the rear pushes the sludge down, preventing the sludge from clogging in the hopper 5 and ensuring that the sludge can continuously enter the dewatering tank 3.

[0038] The sludge entering the dewatering tank 3 is dewatered under the action of the extruder 4. The extruder 4 is auger-shaped on the outside and fits against the inner wall of the dewatering tank 3. It rotates under the drive of the motor 62, applying pressure to the sludge so that the water in the sludge is discharged through the water outlets evenly opened on the outside of the dewatering tank 3. At the same time, it scrapes against the inner wall of the dewatering tank 3 to prevent the sludge from adhering. During the dewatering process, the mud and water discharged from the water outlets will be blocked by the shield 71, which can effectively prevent the mud and water discharged from the upper water outlet from flowing directly to the lower water outlet, thus improving the drainage efficiency. When the dewatered sludge is discharged from the dewatering tank 3, the extruder 72 at the bottom of the outer shell 2 applies pressure to it to shape the sludge for subsequent reprocessing.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sludge dewatering device for sewage treatment comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected with a shell (2), the inner wall of the shell (2) is provided with a dehydration barrel (3), the inner wall of the dehydration barrel (3) is provided with an extrusion piece (4), the upper portion of the shell (2) is provided with a discharge hopper (5), the upper portion of the shell (2) is provided with an anti-blocking mechanism, the anti-blocking mechanism comprises an anti-blocking assembly and a pushing assembly, the anti-blocking assembly comprises a supporting plate (61), the supporting plate (61) is fixedly connected to the upper portion of the shell (2), the upper portion of the supporting plate (61) is provided with a driving motor (62), the output shaft of the driving motor (62) is fixedly connected to the upper portion of the extrusion piece (4), the output shaft of the driving motor (62) is fixedly connected with a driving disc (63), the driving disc (63) is provided in an elliptical shape, the inner wall of the supporting plate (61) is slidably connected with a moving plate (64), the moving plate (64) is elastically connected with the discharge hopper (5) through a compression spring (65), the outer side of the moving plate (64) is fixedly connected with a fixed rod (66), and the upper portion of the fixed rod (66) is fixedly connected with a material rod (67).

2. A sludge dewatering device for sewage treatment according to claim 1, characterized in that: The pushing assembly comprises a pushing plate (68), the pushing plate (68) is fixedly connected to the outer side of the material rod (67), the pushing plate (68) slides in the inner wall of the discharge hopper (5), the front portion of the pushing plate (68) is provided in an inclined surface, and the rear portion of the pushing plate (68) is provided in a cylindrical shape.

3. A sludge dewatering device for sewage treatment according to claim 1, characterized in that: The rear side of the discharge hopper (5) is fixedly connected with a round rod, the round rod slides in the inner wall of the moving plate (64), and the compression spring (65) is sleeved on the outer periphery of the round rod.

4. A sludge dewatering device for sewage treatment according to claim 1, characterized in that: One end of the compression spring (65) is fixedly connected to the outer side of the discharge hopper (5), and the other end of the compression spring (65) is fixedly connected to the outer side of the moving plate (64).

5. A sludge dewatering device for sewage treatment according to claim 1, characterized in that: The outer side of the discharge hopper (5) is fixedly connected with a fixed block, and the fixed rod (66) slides in the inner wall of the fixed block.

6. A sludge dewatering device for sewage treatment according to claim 1, characterized in that: The outer side of the dehydration barrel (3) is uniformly provided with a water outlet hole, the outer side of the dehydration barrel (3) is provided with a collecting assembly, the collecting assembly comprises a shielding piece (71), the shielding piece (71) is fixedly connected to the outer side of the dehydration barrel (3) and is located below the water outlet hole, and the bottom end of the shell (2) is fixedly connected with an extrusion plate (72).

7. A sludge dewatering device for sewage treatment according to claim 6, characterized in that: The shielding piece (71) is provided around the outer side of the dehydration barrel (3) and is provided in an inclined manner.

8. A sludge dewatering device for sewage treatment according to claim 1, characterized in that: The outer side of the extrusion piece (4) is attached to the inner wall of the dehydration barrel (3), and the inner wall of the lower portion of the discharge hopper (5) is provided in an inclined surface.

Images