A centrifugal dewaterer

Abstract

This utility model discloses a centrifugal dewatering machine, including a centrifuge chamber. A conveying ring and a filter ring are fixedly connected inside the centrifuge chamber. A circular frame is fixedly connected to the outer wall of the centrifuge chamber. A stepper motor is fixedly connected inside the circular frame. A spiral conveying rod is rotatably connected inside the conveying ring and the filter ring. One end of the stepper motor's output shaft is fixedly connected to one end of the spiral conveying rod. This utility model achieves centrifugal separation through drum rotation, combined with filtration through the filter ring. Compared to traditional natural sedimentation or simple filtration, it significantly improves the separation efficiency of sludge and water, avoiding the problem of sludge carrying a large amount of water due to incomplete sedimentation, and reducing the load on subsequent processing. Simultaneously, the sludge is discharged through centrifugal separation and the spiral conveying rod. The sludge and water are discharged separately through a sludge discharge pipe and a drain pipe, respectively, avoiding secondary mixing and further ensuring the treatment effect.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment technology, and in particular to a 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 environmental regulations. Sludge is a byproduct of wastewater treatment and is mainly composed of organic matter, inorganic matter, heavy metals, and pathogenic microorganisms. Sludge contains a large amount of water, typically accounting for more than 98% of its total weight, making it bulky and difficult to handle. Direct discharge of untreated sludge into the environment can pollute soil, water sources, and ecosystems.

[0003] In existing technologies, the separation of sludge and water mixtures often relies on natural sedimentation or simple filtration. This not only results in low separation efficiency but also easily leads to incomplete sedimentation, causing the sludge to contain a large amount of water, increasing the load on subsequent treatment processes. Due to incomplete sludge-water separation, the discharged sludge has a high water content, which not only increases transportation costs but also leads to a surge in energy consumption in subsequent dewatering and solidification processes. Therefore, we propose a centrifugal dewatering machine to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a centrifugal dehydrator.

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

[0006] A centrifugal dewatering machine includes a centrifuge chamber. A conveying ring and a filter ring are fixedly connected inside the centrifuge chamber. A circular frame is fixedly connected to the outer wall of the centrifuge chamber. A stepper motor is fixedly connected inside the circular frame. A spiral conveying rod is rotatably connected inside the conveying ring and the filter ring. One end of the output shaft of the stepper motor is fixedly connected to one end of the spiral conveying rod. Multiple sludge discharge troughs are formed on the outer wall of the conveying ring. A T-shaped column is rotatably embedded in the outer wall of the spiral conveying rod. A rotating tube is fixedly connected to one end of the T-shaped column. A hollow rotating drum is fixedly interconnected on the outer wall of the rotating tube. A drive assembly is provided on the outer wall of the centrifuge chamber.

[0007] Preferably, the drive assembly includes a servo motor, an extension frame is fixedly connected to the top of the centrifuge, the inner wall of the extension frame is fixedly connected to the outer wall of the servo motor, and synchronous pulleys are fixedly sleeved on the outer walls of both the servo motor and the rotating tube. The outer walls of the two synchronous pulleys are meshed with the same transmission synchronous belt. By setting the drive assembly, the rotating tube and the drum are driven to rotate, and the mixture of sludge and water is centrifuged.

[0008] Preferably, a support plate is fixedly sleeved on the outer wall of the conveying ring, and the outer wall of the support plate is fixedly connected to the inner wall of the centrifuge box, so as to support the conveying ring by setting the support plate.

[0009] Preferably, the outer wall of the centrifuge is provided with a through hole, and the inner wall of the through hole is rotatably connected to the outer wall of the stepper motor output shaft.

[0010] Preferably, the outer wall of the centrifuge is provided with a circular hole, and the inner wall of the circular hole is rotatably connected to the outer wall of the rotating tube.

[0011] Preferably, a water inlet pipe is rotatably embedded in the outer wall of the rotating tube, and a sludge pump is fixedly connected to one end of the water inlet pipe, so that sludge and water can be transported by the sludge pump.

[0012] Preferably, the outer wall of the drum is provided with multiple water outlet holes, and the bottom of the centrifuge is fixedly connected to a drain pipe and a sludge discharge pipe.

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

[0014] This solution achieves centrifugal separation through drum rotation, combined with filter ring filtration. Compared to traditional natural sedimentation or simple filtration, it significantly improves the separation efficiency of sludge and water, avoiding the problem of sludge carrying a large amount of water due to incomplete sedimentation and reducing the load on subsequent treatment. At the same time, the sludge is discharged through centrifugal separation and screw conveyor, and the sludge and water are discharged separately through sludge discharge pipe and drain pipe, respectively, avoiding secondary mixing and further ensuring the treatment effect. 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 centrifugal dehydrator proposed in this utility model;

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

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

[0019] In the diagram: 1. Centrifuge box; 2. Conveying ring; 3. Filter ring; 4. Support plate; 5. Circular frame; 6. Stepper motor; 7. Screw conveyor rod; 8. Sludge discharge chute; 9. Servo motor; 10. Extension frame; 11. T-shaped column; 12. Rotating tube; 13. Drum; 14. Synchronous pulley; 15. Transmission synchronous belt; 16. Water inlet pipe; 17. Water outlet; 18. Drain pipe; 19. Sludge discharge pipe. 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 centrifugal dewatering machine is disclosed, including a centrifuge chamber 1. A conveying ring 2 and a filter ring 3 are fixedly connected inside the centrifuge chamber 1. A support plate 4 is fixedly sleeved on the outer wall of the conveying ring 2. The outer wall of the support plate 4 is fixedly connected to the inner wall of the centrifuge chamber 1. The support plate 4 strengthens the stability of the conveying ring 2 during equipment operation through rigid support, and avoids displacement of the conveying ring 2 due to the rotation of the spiral conveying rod 7 or the impact of sludge.

[0022] A circular frame 5 is fixedly connected to the outer wall of the centrifuge 1, and a stepper motor 6 is fixedly connected inside the circular frame 5. A through hole is opened on the outer wall of the centrifuge 1, and the inner wall of the through hole is rotatably connected to the outer wall of the output shaft of the stepper motor 6. A spiral conveying rod 7 is rotatably connected inside the conveying ring 2 and the filter ring 3. One end of the output shaft of the stepper motor 6 is fixedly connected to one end of the spiral conveying rod 7. The conveying ring 2 and the spiral conveying rod 7 cooperate to provide a guiding channel for sludge conveying. Its fixed structural shape can constrain the movement path of sludge and reduce the diffusion of sludge during the conveying process. With the rotation of the spiral conveying rod 7, the sludge can be stably pushed to move in the discharge direction, reducing the risk of blockage.

[0023] Multiple sludge discharge troughs 8 are provided on the outer wall of the conveying ring 2. The multiple sludge discharge troughs 8 can disperse and discharge the sludge pushed by the screw conveyor 7, avoiding blockage caused by sludge accumulation at a single discharge port.

[0024] The outer wall of the spiral conveyor rod 7 is rotatably inlaid with a T-shaped column 11. One end of the T-shaped column 11 is fixedly connected to a rotating tube 12. The T-shaped column 11 connects the spiral conveyor rod 7 and the rotating tube 12. Its rotatable inlay structure allows the two to rotate relatively independently (the spiral conveyor rod 7 rotates with the stepper motor 6, and the rotating tube 12 rotates with the servo motor 9), while also transmitting axial support force.

[0025] The outer wall of the centrifuge 1 has a circular hole, and the inner wall of the circular hole is rotatably connected to the outer wall of the rotating tube 12. The outer wall of the rotating tube 12 is fixedly connected to a hollow drum 13. The hollow structure of the drum 13 provides a centrifugal space for the mud-water mixture. The centrifugal force generated by its high-speed rotation can quickly throw water out from multiple water outlets 17 (using the density difference between solid and liquid to achieve separation). Compared with the traditional sedimentation structure, the mud-water separation efficiency is greatly improved.

[0026] The outer wall of the rotating tube 12 is fitted with an inlet pipe 16, and the rotating fitting is sealed (rubber sealing ring). One end of the inlet pipe 16 is fixedly connected to a sludge pump. The outer wall of the drum 13 is provided with multiple outlet holes 17. The bottom of the centrifuge 1 is fixedly connected to a drain pipe 18 and a sludge discharge pipe 19. The drain pipe 18 and the sludge discharge pipe 19 adopt independently set discharge channels so that the filtered water and the dewatered sludge are discharged separately.

[0027] The centrifuge 1 has a drive assembly on its outer wall, which includes a servo motor 9. An extension frame 10 is fixedly connected to the top of the centrifuge 1. Multiple heat dissipation holes are evenly opened on the outer walls of the extension frame 10 and the circular frame 5. The inner wall of the extension frame 10 is fixedly connected to the outer wall of the servo motor 9. The servo motor 9 and the outer wall of the rotating tube 12 are both fixedly fitted with synchronous pulleys 14. The outer walls of the two synchronous pulleys 14 are meshed with the same transmission synchronous belt 15. The transmission synchronous belt 15 is tensioned by an existing tensioning wheel.

[0028] Working principle: During use, the mixture of sludge and water enters the drum 13 through the sludge pump and the inlet pipe 16. The rotation of the servo motor 9 drives the connected synchronous pulley 14 to rotate. The rotation of the synchronous pulley 14 drives the transmission synchronous belt 15 to rotate, which in turn drives another synchronous pulley 14 to rotate, thereby driving the rotating tube 12 to rotate. The rotation of the rotating tube 12 drives the drum 13 to rotate. The rotation of the drum 13 centrifuges the mixture of sludge and water, throwing it out through multiple water outlets 17. The water is filtered through the filter ring 3 and discharged from the drain pipe 18. As the stepper motor 6 drives the spiral conveyor 7 to rotate, the rotation of the spiral conveyor 7, together with the conveying ring 2, drives the sludge to move to the right. Subsequently, it is discharged through multiple sludge discharge troughs 8 and discharged separately from the sludge discharge pipe 19.

[0029] It should be noted that, in actual use, an existing PLC controller can be added. The PLC controller is electrically connected to the stepper motor 6 and the servo motor 9 to facilitate the control of the overall operation.

[0030] 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.

[0031] 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 centrifugal dewaterer comprising a centrifugal bowl (1), characterised in that, The centrifuge (1) is internally fixedly connected to a conveying ring (2) and a filter ring (3). The centrifuge (1) is externally fixedly connected to a circular frame (5). The circular frame (5) is internally fixedly connected to a stepper motor (6). The conveying ring (2) and the filter ring (3) are internally rotatably connected to a spiral conveying rod (7). One end of the output shaft of the stepper motor (6) is fixedly connected to one end of the spiral conveying rod (7). The outer wall of the conveying ring (2) is provided with multiple sludge discharge troughs (8). The outer wall of the spiral conveying rod (7) is rotatably inlaid with a T-shaped column (11). One end of the T-shaped column (11) is fixedly connected to a rotating tube (12). The outer wall of the rotating tube (12) is fixedly interconnected with a hollow rotating drum (13). The outer wall of the centrifuge (1) is provided with a drive assembly.

2. A centrifugal dewaterer according to claim 1, characterised in that The drive assembly includes a servo motor (9), and an extension frame (10) is fixedly connected to the top of the centrifuge (1). The inner wall of the extension frame (10) is fixedly connected to the outer wall of the servo motor (9). The outer walls of the servo motor (9) and the rotating tube (12) are both fixedly fitted with synchronous pulleys (14), and the outer walls of the two synchronous pulleys (14) are meshed with the same transmission synchronous belt (15).

3. A centrifugal dewaterer according to claim 1, wherein The outer wall of the conveying ring (2) is fixedly fitted with a support plate (4), and the outer wall of the support plate (4) is fixedly connected to the inner wall of the centrifuge (1).

4. A centrifugal dewatering machine according to claim 1, wherein The centrifuge (1) has a through hole on its outer wall, and the inner wall of the through hole is rotatably connected to the outer wall of the output shaft of the stepper motor (6).

5. A centrifugal dewatering machine according to claim 1, wherein, The centrifuge (1) has a circular hole on its outer wall, and the inner wall of the circular hole is rotatably connected to the outer wall of the rotating tube (12).

6. A centrifugal dewatering machine according to claim 1, wherein, The outer wall of the rotating tube (12) is rotatably embedded with a water inlet pipe (16), and a sludge pump is fixedly connected to one end of the water inlet pipe (16).

7. A centrifugal dewatering machine according to claim 1 wherein, The outer wall of the drum (13) is provided with multiple water outlet holes (17), and the bottom of the centrifuge (1) is fixedly connected with a drain pipe (18) and a mud discharge pipe (19).

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