Stacked screw type sludge dewatering machine

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a stacked spiral sludge dewatering machine which comprises a sludge dewatering machine body, the sludge dewatering machine body comprises a fixed base, a main machine body is arranged above the fixed base, a sludge conveying pipeline is arranged at the upper end of the main machine body in a matched mode, and a dosing pipeline is arranged on one side of the sludge conveying pipeline in a matched mode. A mixing system is connected below the sludge conveying pipeline, a water supply pipeline is cooperatively arranged below the mixing system, the mixing system is connected with a stacked spiral main body, the sludge dewatering machine body is further cooperatively provided with an electric cabinet, and a filtrate discharge pipeline and a backflow pipeline are cooperatively arranged below the stacked spiral main body; the utility model provides the stacked spiral type sludge dewatering machine which integrates the functions of sludge conveying, dosing and mixing, stacked spiral dewatering, filtrate discharging and the like, so that the sludge treatment flow is obviously simplified, the conversion and waiting time among working procedures is reduced, and the overall treatment efficiency is improved.

Description

Technical Field

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

[0002] Sludge is an inevitable product of sewage treatment, which contains a high amount of water. In order to reduce the pollution of sludge to the environment, sludge is often dehydrated before being discarded. At present, common sludge dewatering machines include plate-frame sludge dewatering machines, belt-type sludge dewatering machines and screw-stack sludge dewatering machines. Among them, plate-frame sludge dewatering machines and belt-type sludge dewatering machines have the defect of easy clogging. The screw-stack sludge dewatering machine is not easy to clog when used. Therefore, it is more popular with people. When dewatering sludge in the water treatment system, the traditional screw-stack sludge dewatering machine needs to go through flocculation reaction, sludge water concentration and dehydration processes and units respectively. There are many processes, and there are problems such as cumbersome operation, incomplete flocculation and unstable dehydration effect during the operation. Therefore, there is an urgent need for a screw-stack sludge dewatering machine that can enhance the flocculation effect and improve the dehydration efficiency. Utility Model Content

[0003] In order to solve some problems existing in the above-mentioned prior art, the utility model provides a screw stacking sludge dewatering machine to solve the deficiencies existing in the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides a screw stack type sludge dewatering machine, including a sludge dewatering machine body, the sludge dewatering machine body including a fixed base, a main body is arranged above the fixed base, a sludge conveying pipeline is arranged at the upper end of the main body, a dosing pipeline is arranged at one side of the sludge conveying pipeline, a mixing system is connected to the bottom of the sludge conveying pipeline, a water supply pipeline is arranged at the bottom of the mixing system, the mixing system is connected to the screw stack body, the sludge dewatering machine body is also arranged with an electric control box, and a filtrate discharge pipeline and a reflux pipeline are arranged at the bottom of the screw stack body.

[0005] As a further improvement of the utility model, in order to avoid the common clogging problems of traditional dehydrators and reduce the complexity and cost of equipment maintenance, the stacked screw body is connected to the fixed base, and the stacked screw body includes a spiral shaft, and the spiral shaft is cooperated with multiple fixed rings and movable rings. The spiral shaft passes through the fixed rings and the movable rings, and the fixed rings and the movable rings are stacked on each other to form a small movable filter seam. The front end of the spiral shaft is a concentrating part, and the rear end is a dehydrating part.

[0006] As a further improvement of the utility model, in order to facilitate the formation of stable and easily dehydrated flocs, enhance the flocculation effect, and improve the dehydration efficiency, the mixing system is arranged in conjunction with the dosing pipeline, and the mixing system includes a sludge mixing box and an agitator arranged inside the sludge mixing box, and the agitator is arranged in conjunction with a stirring motor.

[0007] As a further improvement of the utility model, in order to further improve the dewatering efficiency of the sludge, the spiral shaft is inclined at an angle of 30-60° on the fixed base, and the other end of the spiral shaft is cooperated with a driving motor.

[0008] As a further improvement of the utility model, in order to facilitate the resource utilization or harmless treatment of the treated sludge, the dehydration part of the spiral stack body is provided with a mud cake output port.

[0009] As a further improvement of the utility model, in order to ensure the stability and reliability of the equipment operation, the sludge conveying pipeline, filtrate discharge pipeline, water supply pipeline, reflux pipeline and dosing pipeline respectively have preset calibers and are connected to the corresponding system components through external thread connection, internal thread connection or flange connection.

[0010] When the utility model is working, the sludge is transported to the top of the sludge dewatering machine body through the sludge conveying pipeline and enters the pretreatment stage before the mixing system. While the sludge is being transported, an appropriate amount of flocculant is injected into the sludge through the dosing pipeline. The flocculant and the sludge are fully mixed in the mixing system to form flocs that are easy to dehydrate. The stirring motor drives the stirrer to rotate to ensure uniform mixing of the flocculant and the sludge. The uniformly mixed sludge enters the spiral stacking body for dehydration treatment. The spiral shaft is inclined at an angle of 30-60 degrees and is driven to rotate by the driving motor. As the spiral shaft rotates, the sludge is initially concentrated in the concentration section and then enters the dehydration section for further dehydration. During the dehydration process, the water in the sludge is squeezed out through small active filter gaps to form filtrate, which is discharged out of the equipment through the filtrate discharge pipe for subsequent treatment or reuse. Part of the filtrate flows back to the mixing system or water supply pipeline through the reflux pipe to adjust the humidity of the mixing system or use it as dilution water. After dehydration treatment, most of the water in the sludge is removed to form a mud cake with a low water content, which is discharged through the mud cake output port of the dehydration section of the spiral stacking body for subsequent disposal or resource utilization.

[0011] The beneficial effects of the utility model are as follows: the utility model provides a spiral stacking sludge dewatering machine, which integrates the functions of sludge conveying, dosing and mixing, spiral stacking dewatering and filtrate discharge, and the equipment significantly simplifies the sludge treatment process, reduces the conversion and waiting time between processes, and improves the overall treatment efficiency; the clever coordination of the mixing system and the dosing pipeline ensures that the sludge can be fully mixed with the flocculant before entering the spiral stacking body to form a large and solid floc, which not only improves the dewatering performance of the sludge, but also reduces the risk of filter seam clogging, and ensures the continuity and stability of the dewatering process; the spiral stacking body adopts a stacking design of a spiral shaft and multiple fixed rings and floating rings to form a small and uniform movable filter seam. This structure can effectively continuously squeeze and dewater the sludge, quickly discharge the water in the sludge, reduce the water content of the mud cake, and improve the dewatering efficiency; the spiral shaft is tilted at an appropriate angle, and cooperates with the drive motor to provide stable power. At the same time, each pipeline interface adopts a standardized connection method to ensure the stability and reliability of the equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings:

[0013] Figure 1 It is a structural diagram of the utility model.

[0014] Figure 2 It is a top view of the utility model.

[0015] Figure 3 It is a side view of the utility model.

[0016] Figure 4 This is a schematic diagram of the installation position of the return pipe of the utility model.

[0017] Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0018] Figure 6 for Figure 2 Enlarged view of point B in the middle.

[0019] Among them, 1 fixed base, 2 main body, 3 sludge conveying pipeline, 4 dosing pipeline, 5 mixing system, 501 sludge mixing box, 502 stirring motor, 6 water supply pipeline, 7 spiral body, 701 spiral shaft, 702 fixed ring, 703 floating ring, 704 concentration part, 705 dehydration part, 8 electric control box, 9 filtrate discharge pipeline, 10 reflux pipeline, 11 drive motor, 12 mud cake output port. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution in this application, Figure 1-6 The present invention is further described in the following embodiments, which are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the protection scope of the present invention.

[0021] like Figure 1-6 A screw stacking sludge dewatering machine shown in the figure includes a sludge dewatering machine body, the sludge dewatering machine body includes a fixed base 1, a main body 2 is arranged above the fixed base 1, a sludge conveying pipeline 3 is arranged at the upper end of the main body 2, a dosing pipeline 4 is arranged at one side of the sludge conveying pipeline 3, a mixing system 5 is connected to the bottom of the sludge conveying pipeline 3, a water supply pipeline 6 is arranged below the mixing system 5, a screw stacking body 7 is connected to the mixing system 5, the sludge dewatering machine body is also provided with an electric control box 8, and a filtrate discharge pipeline 9 and a reflux pipeline 10 are arranged below the screw stacking body 7.

[0022] The spiral stack body 7 is connected to the fixed base 1, and the spiral stack body 7 includes a spiral shaft 701. The spiral shaft 701 is equipped with multiple fixed rings 702 and movable rings 703. The spiral shaft 701 penetrates the fixed rings 702 and the movable rings 703. The fixed rings 702 and the movable rings 703 are stacked on each other to form a small movable filter seam. The front end of the spiral shaft 701 is a concentrating part 704, and the rear end is a dehydrating part 705.

[0023] The mixing system 5 is arranged in cooperation with the dosing pipeline 4 . The mixing system 5 includes a sludge mixing box 501 and a stirrer arranged inside the sludge mixing box 501 . The stirrer is arranged in cooperation with a stirring motor 502 .

[0024] The spiral shaft 701 is tilted at an angle of 30-60° on the fixed base 1 , and the other end of the spiral shaft 701 is matched with a driving motor 11 .

[0025] The dehydration portion 705 of the screw stack body 7 is provided with a mud cake outlet 12 .

[0026] The sludge conveying pipeline 3, the filtrate discharge pipeline 9, the water supply pipeline 6, the return pipeline 10 and the dosing pipeline 4 have preset calibers respectively, and are connected with matching system components through external thread connection, internal thread connection or flange connection.

[0027] When the utility model is working, the sludge is transported to the top of the sludge dewatering machine body through the sludge conveying pipe 3 and enters the pretreatment stage before the mixing system 5. While the sludge is being transported, an appropriate amount of flocculant is injected into the sludge through the dosing pipe 4. The flocculant and the sludge are fully mixed in the mixing system 5 to form flocs that are easy to dehydrate. The stirring motor 502 drives the stirrer to rotate to ensure uniform mixing of the flocculant and the sludge. The uniformly mixed sludge enters the spiral stacking body 7 for dehydration treatment. The spiral shaft 701 is inclined at an angle of 30-60° and is driven to rotate by the driving motor 11. As the spiral shaft 701 rotates, the sludge is initially concentrated in the concentration section 704 and then enters the dehydration section 705 for further dehydration. During the dehydration process, the water in the sludge is squeezed out through the fine movable filter gaps to form a filtrate, which is discharged out of the equipment through the filtrate discharge pipe 9 for subsequent treatment or reuse. Part of the filtrate flows back to the mixing system 5 or the water supply pipeline 6 through the reflux pipe 10 to adjust the humidity of the mixing system 5 or to be used as dilution water. After the dehydration treatment, most of the water in the sludge is removed to form a mud cake with a low water content, which is discharged through the mud cake output port 12 of the dehydration section 705 of the spiral stacking body 7 for subsequent disposal or resource utilization.

[0028] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A screw stack sludge dewatering machine, comprising a sludge dewatering machine body, characterized in that: The sludge dewatering machine body comprises a fixed base (1), a main body (2) is arranged above the fixed base (1), a sludge conveying pipeline (3) is arranged at the upper end of the main body (2), a dosing pipeline (4) is arranged at one side of the sludge conveying pipeline (3), a mixing system (5) is connected to the bottom of the sludge conveying pipeline (3), a water supply pipeline (6) is arranged below the mixing system (5), a screw stacking body (7) is connected to the mixing system (5), an electric control box (8) is arranged on the main body of the sludge dewatering machine, and a filtrate discharge pipeline (9) and a return pipeline (10) are arranged below the screw stacking body (7).

2. The screw stack sludge dewatering machine according to claim 1, characterized in that: The spiral stack body (7) is connected to the fixed base (1), and comprises a spiral shaft (701). The spiral shaft (701) is provided with a plurality of fixed rings (702) and movable rings (703). The spiral shaft (701) penetrates the fixed rings (702) and the movable rings (703). The fixed rings (702) and the movable rings (703) are stacked on each other to form a fine movable filter seam. The front end of the spiral shaft (701) is a concentrating portion (704), and the rear end is a dehydrating portion (705).

3. The screw stack sludge dewatering machine according to claim 1, characterized in that: The mixing system (5) is arranged in cooperation with the dosing pipeline (4), and the mixing system (5) comprises a sludge mixing box (501) and a stirrer arranged inside the sludge mixing box (501), and the stirrer is arranged in cooperation with a stirring motor (502).

4. The screw stack sludge dewatering machine according to claim 2, characterized in that: The spiral shaft (701) is arranged on the fixed base (1) at an angle of 30-60°, and the other end of the spiral shaft (701) is provided with a driving motor (11).

5. The screw stack sludge dewatering machine according to claim 2, characterized in that: The dehydration portion (705) of the screw stack body (7) is provided with a mud cake output port (12).

6. The screw stack sludge dewatering machine according to claim 1, characterized in that: The sludge conveying pipeline (3), the filtrate discharge pipeline (9), the water supply pipeline (6), the return pipeline (10) and the dosing pipeline (4) respectively have preset calibers and are connected to corresponding system components through external thread connection, internal thread connection or flange connection.

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