Sludge centrifugal dewatering machine

Abstract

This utility model discloses a sludge centrifugal dewatering machine, including a dewatering cylinder. An end plate is fixedly connected inside the dewatering cylinder, and a conical filter cylinder is fixedly connected to the outer wall of the end plate. One end of the conical filter cylinder is fixedly connected to the inner wall of the dewatering cylinder. A circular frame is fixedly connected to the outer wall of the dewatering cylinder, and a motor is fixedly connected inside the circular frame. A rotating cylinder is fixedly connected to the outer wall of the motor's output shaft. Multiple water outlet holes are provided on the outer wall of the rotating cylinder. This utility model achieves initial sludge-water separation through the centrifugal force of the rotating cylinder. Then, a converging channel is formed by spiral conveying blades with progressively increasing blade diameters from left to right, gradually squeezing the sludge while it is being conveyed, achieving deep dewatering of the sludge. The entire machine integrates conveying, centrifugal separation, and spiral conveying and squeezing dewatering functions into one unit, eliminating the need for complex piping connections, resulting in a compact layout and significantly saving space.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a sludge centrifugal dewatering machine. Background Technology

[0002] Wastewater treatment refers to the purification and treatment of industrial wastewater, domestic wastewater, and surface runoff to remove pollutants and bring them up to the level of discharge standards or reusability. The main purpose of wastewater treatment is to reduce pollution to the natural environment and ensure that the discharged water quality meets the requirements of environmental protection regulations.

[0003] In existing technologies, traditional sludge treatment processes rely heavily on primary centrifugation or filtration for sludge-water separation, which can only achieve preliminary separation of sludge and free water and cannot perform deeper dewatering. Furthermore, the overall layout of existing treatment equipment is often quite large. Since the dewatering, conveying, and separation modules are mostly set up independently, the modules need to be connected by complex pipelines, which not only occupies a lot of space but may also lead to a lengthy processing flow due to the dispersed equipment. Therefore, we propose a sludge centrifugal dewatering machine to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a sludge centrifugal dewatering machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sludge centrifugal dewatering machine includes a dewatering cylinder, an end plate fixedly connected inside the dewatering cylinder, a conical filter cylinder fixedly connected to the outer wall of the end plate, one end of the conical filter cylinder fixedly connected to the inner wall of the dewatering cylinder, a circular frame fixedly connected to the outer wall of the dewatering cylinder, a motor fixedly connected inside the circular frame, a rotating cylinder fixedly connected to the outer wall of the motor output shaft, a plurality of water outlet holes opened on the outer wall of the rotating cylinder, and a dewatering assembly provided on the inner wall of the dewatering cylinder.

[0007] Preferably, the dewatering assembly includes a conical tube, the outer wall of which is rotatably fitted with a conical sealing sleeve, one end of which is fixedly connected to an inner cylinder, one end of which is fixedly connected to the outer wall of a rotating cylinder, the outer wall of which is fixedly fitted with a spiral conveying blade, and the outer wall of which is fixedly fitted with an L-shaped support plate. The dewatering assembly is used to dewater the sludge and reduce its water content.

[0008] Preferably, the outer wall of the dehydration cylinder is fixedly connected to a water outlet pipe.

[0009] Preferably, both the dehydration cylinder and the outer wall of the end plate are provided with through holes, and the inner wall of the through holes is rotatably connected to the outer wall of the motor output shaft. The motor drives the rotating cylinder and the inner cylinder to rotate.

[0010] Preferably, one end of the tapered tube is fixedly connected to a sludge inlet pipe, and one end of the sludge inlet pipe is fixedly connected to a sludge pump.

[0011] Preferably, the outer wall of the L-shaped support plate has a circular hole, and the inner wall of the circular hole is fixedly connected to the outer wall of the sewage inlet pipe. The L-shaped support plate supports the sewage inlet pipe and the tapered pipe.

[0012] Preferably, the outer wall of the dehydration cylinder is fixedly connected to two foot plates, which support the dehydration cylinder.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] This solution achieves initial separation of mud and water through the centrifugal force of the rotating drum. Then, it uses spiral conveying blades with progressively increasing blade diameters from left to right to form a converging channel. While conveying the sludge, it is gradually squeezed, achieving deep dewatering of the sludge. The whole solution integrates functions such as conveying, centrifugal separation, and spiral conveying and squeezing dewatering into one unit. It does not require complex pipeline connections, has a compact layout, and greatly saves site space. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific 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.

[0016] Figure 1 This is a three-dimensional structural diagram of a sludge centrifugal dewatering machine proposed in this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of a sludge centrifugal dewatering machine proposed in this utility model;

[0018] Figure 3 This utility model proposes a sludge centrifugal dewatering machine. Figure 2 A magnified structural diagram of part A in the diagram.

[0019] In the diagram: 1. Dewatering cylinder; 2. End plate; 3. Conical filter cylinder; 4. Water outlet pipe; 5. Circular frame; 6. Motor; 7. Rotating cylinder; 8. Water outlet hole; 9. Conical tube; 10. Conical sealing sleeve; 11. Inner cylinder; 12. Spiral conveyor blades; 13. L-shaped support plate; 14. Sewage inlet pipe; 15. Foot plate. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figures 1-3 As shown, a sludge centrifugal dewatering machine is disclosed, including a dewatering cylinder 1. An end plate 2 is fixedly connected inside the dewatering cylinder 1, and a conical filter cylinder 3 is fixedly connected to the outer wall of the end plate 2. The end plate 2 serves to connect and support, thereby enhancing the stability of the conical filter cylinder 3 during equipment operation.

[0022] The outer wall of the dewatering cylinder 1 is fixedly connected to the outlet pipe 4, which is the discharge channel for the filtered wastewater. One end of the conical filter cylinder 3 is fixedly connected to the inner wall of the dewatering cylinder 1. A circular frame 5 is fixedly connected to the outer wall of the dewatering cylinder 1. A motor 6 is fixedly connected inside the circular frame 5. The circular frame 5 provides a stable installation position for the motor 6. Multiple heat dissipation holes are opened on its outer wall.

[0023] Both the dewatering cylinder 1 and the end plate 2 have through holes on their outer walls. The inner wall of the through hole is rotatably connected to the outer wall of the output shaft of the motor 6. The outer wall of the output shaft of the motor 6 is fixedly connected to the rotating cylinder 7. The outer wall of the rotating cylinder 7 has multiple water outlet holes 8. Under the action of centrifugal force, the rotating cylinder 7 can quickly throw out the water in the muddy sewage, realizing the initial separation of mud and water (by utilizing the solid-liquid density difference between sludge and water).

[0024] The inner wall of the dewatering cylinder 1 is provided with a dewatering component, which includes a conical tube 9. A conical sealing sleeve 10 is rotatably fitted on the outer wall of the conical tube 9. The conical sealing sleeve 10 not only ensures the relative rotation between the conical tube 9 and the inner cylinder 11, but also plays a good sealing role to prevent sewage from leaking at the connection between the two.

[0025] One end of the conical sealing sleeve 10 is fixedly connected to the inner cylinder 11, and one end of the inner cylinder 11 is fixedly connected to the outer wall of the rotating cylinder 7. The outer wall of the inner cylinder 11 is fixedly fitted with a spiral conveying blade 12, the diameter of which increases from left to right to form a contraction channel. When the inner cylinder 11 rotates, it can push the sludge to the left side of the conical filter cylinder 3 and gradually squeeze the sludge during the movement to achieve deep dewatering of the sludge.

[0026] An L-shaped support plate 13 is fixedly fitted on the outer wall of the inner cylinder 11. A sewage inlet pipe 14 is fixedly connected to one end of the tapered pipe 9. A sludge pump is fixedly connected to one end of the sewage inlet pipe 14. The sludge pump can overcome the viscosity of sewage and pipe resistance and efficiently pump sewage into the tapered pipe 9. A round hole is opened on the outer wall of the L-shaped support plate 13. The inner wall of the round hole is fixedly connected to the outer wall of the sewage inlet pipe 14. Two foot plates 15 are fixedly connected to the outer wall of the dewatering cylinder 1.

[0027] Working principle: When treating muddy wastewater, the sludge pump and the inlet pipe 14 pump the muddy wastewater into the conical pipe 9. As the motor 6 operates, it drives the connected rotating cylinder 7, conical sealing sleeve 10 and inner cylinder 11 to rotate. When the rotating cylinder 7 rotates, the muddy wastewater enters and is thrown out through multiple outlet holes 8. Separation is achieved by centrifugal force, and the wastewater is discharged from the conical filter cylinder 3. The sludge is blocked and driven by the rotation of the inner cylinder 11 to rotate the spiral conveying blades 12, thereby realizing the conveying of the sludge. The diameter of the spiral conveying blades 12 increases from left to right, forming a contraction channel, which gradually squeezes the sludge and further dewaters it. Finally, the sludge is discharged from the left side of the conical filter cylinder 3, and the wastewater is discharged from the outlet pipe 4.

[0028] It should be noted that when actually put into use, an existing PLC controller can be added. The PLC controller is electrically connected to motor 6 and sludge pump to facilitate the control of the overall operation.

[0029] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0030] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sludge centrifugal dewatering machine, comprising a dewatering drum (1), characterized in that, An end plate (2) is fixedly connected inside the dewatering cylinder (1). A conical filter cylinder (3) is fixedly connected to the outer wall of the end plate (2). One end of the conical filter cylinder (3) is fixedly connected to the inner wall of the dewatering cylinder (1). A circular frame (5) is fixedly connected to the outer wall of the dewatering cylinder (1). A motor (6) is fixedly connected inside the circular frame (5). A rotating cylinder (7) is fixedly connected to the outer wall of the output shaft of the motor (6). Multiple water outlet holes (8) are opened on the outer wall of the rotating cylinder (7). A dewatering component is provided on the inner wall of the dewatering cylinder (1).

2. The sludge centrifugal dewatering machine according to claim 1, characterized in that, The dehydration assembly includes a conical tube (9), the outer wall of which is rotatably fitted with a conical sealing sleeve (10), one end of which is fixedly connected to an inner cylinder (11), one end of which is fixedly connected to the outer wall of a rotating cylinder (7), the outer wall of which is fixedly fitted with a spiral conveying blade (12), and the outer wall of which is fixedly fitted with an L-shaped support plate (13).

3. The sludge centrifugal dewatering machine according to claim 1, characterized in that, The outer wall of the dehydration cylinder (1) is fixedly connected to the water outlet pipe (4).

4. A sludge centrifugal dewatering machine according to claim 1, characterized in that, Both the dehydration cylinder (1) and the end plate (2) have through holes on their outer walls, and the inner wall of the through holes is rotatably connected to the outer wall of the output shaft of the motor (6).

5. A sludge centrifugal dewatering machine according to claim 2, characterized in that, One end of the tapered tube (9) is fixedly connected to a sewage inlet pipe (14), and one end of the sewage inlet pipe (14) is fixedly connected to a sludge pump.

6. A sludge centrifugal dewatering machine according to claim 5, characterized in that, The outer wall of the L-shaped support plate (13) is provided with a circular hole, and the inner wall of the circular hole is fixedly connected to the outer wall of the sewage inlet pipe (14).

7. A sludge centrifugal dewatering machine according to claim 1, characterized in that, The outer wall of the dehydration cylinder (1) is fixedly connected to two foot plates (15).

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