A centrifugal dewatering type sludge disposal apparatus

Abstract

This utility model belongs to the field of centrifugal dewatering sludge treatment technology, specifically a centrifugal dewatering sludge treatment device, comprising: a shell, a blower installed on one side of the shell, a transmission pipe installed at the output end of the blower, the transmission pipe installed inside the shell, a connecting rod fixedly connected to the inner wall of the shell, a hollow frame installed at one end of the connecting rod, one end of the transmission pipe connected to the hollow frame, and an air outlet on one side of the hollow frame; when the drum rotates, multiple sets of dry material outlets pass sequentially through the air outlet and brush bristles, thereby blowing off the sludge adsorbed at the dry material outlets by the blower, and sweeping off the sludge adhering to the dry material outlets by the brush bristles. With the cooperation of the blower and brush bristles, the cleaning intensity of the dry material outlets can be improved, avoiding blockage of the dry material outlets when the sludge is thrown out, thus avoiding affecting the normal throwing out of the equipment after sludge dewatering, and thus improving the sludge dewatering treatment efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of centrifugal dewatering sludge treatment technology, specifically a centrifugal dewatering sludge disposal equipment. Background Technology

[0002] Centrifugal dewatering sludge treatment equipment is a device that uses centrifugal force generated by high-speed rotation to remove water from sludge, thereby achieving solid-liquid separation.

[0003] The sludge centrifugal dewatering machine consists of components such as a rotating drum, screw conveyor, differential gear, main bearing, base frame, liquid-solid phase collection chamber, top cover, motor drive device, and frequency converter.

[0004] However, existing treatment equipment still has some problems. After the sludge is spun dry, it is discharged from the solid material outlet of the drum. Due to the low water content, the outlet is prone to blockage when the solid material is discharged, which leads to a reduction in sludge treatment efficiency. Therefore, a centrifugal dewatering sludge treatment equipment is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes a centrifugal dewatering sludge treatment device.

[0006] The technical solution adopted by this utility model to solve its technical problem is a centrifugal dewatering sludge treatment equipment, comprising: a shell, a blower installed on one side of the shell, a transmission pipe installed at the output end of the blower, the transmission pipe installed inside the shell, a connecting rod fixedly connected to the inner wall of the shell, a hollow frame installed at one end of the connecting rod, one end of the transmission pipe connected to the hollow frame, an air outlet opened on one side of the hollow frame, bristles fixedly connected to one side of the hollow frame, a first drive motor installed on one side of the shell, and the output end of the first drive motor fixedly connected to... The device includes a screw conveyor with a second drive motor mounted on one side of the housing. A gear is fixedly connected to the output end of the second drive motor. A rotating drum is located on the outer side of the screw conveyor, and teeth are provided on the outer side of the rotating drum. The rotating drum meshes with the gear, and a spiral plate is fixedly connected to the surface of the rotating drum. A dry material outlet is located at one end of the rotating drum. The brush bristles are in contact with the dry material outlet, and the brush bristles sweep off the sludge adhering to the dry material outlet. With the cooperation of the blower and the brush bristles, the cleaning intensity of the dry material outlet can be improved, and blockage of the dry material outlet can be avoided when the sludge is thrown out.

[0007] Preferably, the screw conveyor has a sludge discharge port, and a rotary joint is installed at one end of the screw conveyor. A raw material pipe is installed on the rotary joint. The raw material pipe passes through the outer shell and is connected to the screw conveyor through the rotary joint, so that sludge can be continuously added to the inside of the screw conveyor when it rotates.

[0008] Preferably, one end of the drum is rotatably connected to the inside of the outer shell, and a third drive motor is installed inside the screw conveyor. The output end of the third drive motor is fixedly connected to a connecting frame. Limiting grooves are symmetrically opened inside the connecting frame. The speed change of the third drive motor adjusts the centrifugal force generated when the connecting frame rotates, thereby cooperating with the elastic force of the spring to change the exposed length of the telescopic frame.

[0009] Preferably, a limiting plate is slidably connected inside the limiting groove, and a spring is fixedly connected to the inner wall of the connecting frame. One end of the spring and one side of the limiting plate are fixedly connected to a telescopic frame, so that the limiting plate can only move within the limiting groove, thereby preventing the telescopic frame from falling off the connecting frame.

[0010] Preferably, a scraper is fixedly connected to one side of the telescopic frame, and a discharge port is opened at the bottom of the outer shell. The discharge port is located below the dry material discharge port. A drain pipe is installed on the lower surface of the outer shell. The scraper is in contact with the inner wall of the screw conveyor, which can scrape off the sludge adsorbed on the inner wall, avoid the formation of a stubborn adhesion layer on the inner wall by high viscosity sludge, maintain a constant flow area, and ensure a stable sludge dewatering treatment capacity.

[0011] Preferably, the equipment is connected to an external controller, which is used to control the start and stop of the fan, the first drive motor, the second drive motor and the third drive motor. By controlling the fan, the first drive motor, the second drive motor and the third drive motor through the external controller, the ease of use of the equipment is improved.

[0012] The advantages of this invention are as follows: When the drum rotates, multiple sets of dry material outlets pass through the air outlet and brush bristles in sequence. The blower blows off the sludge adsorbed at the dry material outlet, and the brush bristles sweep off the sludge adhering to the dry material outlet. With the cooperation of the blower and brush bristles, the cleaning intensity of the dry material outlet can be improved, avoiding blockage of the dry material outlet when the sludge is thrown out. This avoids affecting the normal discharge of sludge after dewatering, thereby improving the efficiency of sludge dewatering treatment.

[0013] This invention adjusts the centrifugal force generated when the connecting frame rotates by changing the speed of the third drive motor. This, in conjunction with the elasticity of the spring, changes the exposed length of the telescopic frame. When the rotation speed is high, the scraper adheres to the inner wall of the screw conveyor, which can scrape off the sludge adsorbed on the inner wall of the screw conveyor. This prevents high-viscosity sludge from forming a stubborn adhesion layer on the inner wall, maintains a constant flow area, and ensures a stable sludge dewatering capacity, thereby improving sludge treatment efficiency and equipment reliability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0015] Figure 1 This is a schematic diagram of the overall structure;

[0016] Figure 2 This is a schematic diagram of the overall structure in cross-section;

[0017] Figure 3 This is a cross-sectional schematic diagram of the anti-blocking component;

[0018] Figure 4 This is a schematic cross-section of a screw conveyor.

[0019] Figure 5 This is a cross-sectional schematic diagram of the scraper assembly.

[0020] In the diagram: 1. Outer shell; 2. Fan; 3. Transmission pipe; 4. Connecting rod; 5. Hollow frame; 6. Air outlet; 7. Brush bristles; 8. First drive motor; 9. Screw conveyor; 10. Second drive motor; 11. Gear; 12. Drum; 13. Spiral plate; 14. Dry material outlet; 15. Sludge outlet; 16. Rotary joint; 17. Raw material pipe; 18. Connecting frame; 181. Third drive motor; 19. Limiting groove; 20. Limiting plate; 21. Spring; 22. Telescopic frame; 23. Scraper; 24. Discharge port; 25. Drainage pipe. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] Please see Figure 1-5 As shown, a centrifugal dewatering sludge treatment device includes: a shell 1, a blower 2 installed on one side of the shell 1, a transmission pipe 3 installed at the output end of the blower 2, the transmission pipe 3 installed inside the shell 1, a connecting rod 4 fixedly connected to the inner wall of the shell 1, a hollow frame 5 installed at one end of the connecting rod 4, one end of the transmission pipe 3 connected to the hollow frame 5, an air outlet 6 opened on one side of the hollow frame 5, brush bristles 7 fixedly connected to one side of the hollow frame 5, a first drive motor 8 installed on one side of the shell 1, a screw conveyor 9 fixedly connected to the output end of the first drive motor 8, and a screw conveyor 9 installed on one side of the shell 1. The screw conveyor 9 is equipped with a second drive motor 10, and a gear 11 is fixedly connected to the output end of the second drive motor 10. A rotating drum 12 is provided on the outside of the screw conveyor 9. The rotating drum 12 has teeth on its outside and is meshed with the gear 11. A spiral plate 13 is fixedly connected to the surface of the rotating drum 12. A dry material outlet 14 is provided at one end of the rotating drum 12. The brush 7 is in contact with the dry material outlet 14. A sludge outlet 15 is provided on the screw conveyor 9. A rotary joint 16 is installed at one end of the screw conveyor 9. A raw material pipe 17 is installed on the rotary joint 16 and passes through the outer shell 1.

[0023] Centrifugal dewatering sludge treatment equipment is a device that uses centrifugal force generated by high-speed rotation to remove water from sludge, thereby achieving solid-liquid separation. To improve sludge treatment efficiency, this centrifugal dewatering sludge treatment equipment is proposed. In actual use, the first drive motor 8 and the second drive motor 10 are started via an external controller. The first drive motor 8 drives the screw conveyor 9 to rotate, and the second drive motor 10, in turn, drives the gear 11 to rotate. Because the teeth on the gear 11 mesh with the teeth on the rotating drum 12, the gear 11 drives the rotating drum 12 to rotate. Because the rotational speeds of the first drive motor 8 and the second drive motor 10 maintain a fixed speed difference, ensuring that the rotational speed of the screw conveyor 9 is lower than that of the drum 12, the sludge to be dewatered is added into the screw conveyor 9 from the raw material pipe 17. Under the rotation of the screw conveyor 9, the sludge particles, due to their higher density and greater centrifugal force, are thrown and adhered to the inner wall of the drum 12 through the sludge outlet 15, forming a solid ring layer. Water, due to its lower density and smaller centrifugal force, can only form a liquid ring layer inside the solid ring layer. The sludge in the solid ring layer is slowly pushed by the screw conveyor 9. The sludge is conveyed to the conical end of the rotating drum 12 and the screw conveyor 9, and continuously discharged into the outer shell 1 through the dry material outlet 14 around the rotating drum 12. The liquid in the liquid ring layer is continuously "overflowed" from the weir to the outside of the rotating drum 12, forming a separated liquid. Then it is collected and discharged into the drain pipe 25 by gravity, thereby achieving the separation of sludge and water. The spiral blades on the outer wall of the screw conveyor 9 and the inner wall of the rotating drum 12 form a gradually narrowing space, which mechanically squeezes the sludge, reducing the water content of the sludge after dewatering. When separating water and sludge in the sludge, the blower 2 is started through the external controller to blow air. The air is blown into the hollow frame 5 through the transmission pipe 3, and then blown towards the rotating drum 12 through the air outlet 6. When the rotating drum 12 rotates, the multiple sets of dry material outlets 14 on one side pass through the brush 7 and the air outlet 6 in sequence, which can blow off the sludge adsorbed on the inner wall of the dry material outlet 14. The brush 7 can also sweep off the sludge adhering to the dry material outlet 14. At the same time, in conjunction with the blower 2, it can improve the cleaning intensity of the dry material outlet 14, avoid the blockage of the dry material outlet 14 when the sludge is thrown out, and thus avoid affecting the normal throwing out of the sludge after dewatering, thereby improving the sludge dewatering treatment efficiency.

[0024] Please see Figure 1-5As shown, one end of the drum 12 is rotatably connected to the inside of the outer shell 1. The screw conveyor 9 is equipped with a third drive motor 181. The output end of the third drive motor 181 is fixedly connected to a connecting frame 18. The connecting frame 18 has symmetrically opened limit grooves 19 inside. The limit grooves 19 are slidably connected to a limit plate 20 inside. The inner wall of the connecting frame 18 is fixedly connected to a spring 21. One end of the spring 21 and one side of the limit plate 20 are fixedly connected to a telescopic frame 22. One side of the telescopic frame 22 is fixedly connected to a scraper 23. The bottom of the outer shell 1 is provided with a discharge port 24. The discharge port 24 is located below the dry material discharge port 14. The lower surface of the outer shell 1 is equipped with a drain pipe 25. The equipment is connected to an external controller. The external controller is used to control the start and stop of the fan 2, the first drive motor 8, the second drive motor 10 and the third drive motor 181.

[0025] The third drive motor 181 is started by an external controller, which drives the connecting frame 18 to rotate. The centrifugal force generated throws the scraper 23 outward. Since the third drive motor 181 is a variable speed motor, when the rotation speed of the third drive motor 181 changes, the external force on the spring 21 is different. It can drive the telescopic frame 22 to extend and retract through its own elasticity, changing the exposed length of the telescopic frame 22. When the rotation speed is high, the scraper 23 is in contact with the inner wall of the screw conveyor 9, which can scrape off the sludge adsorbed on the inner wall of the screw conveyor 9, avoid the formation of a stubborn adhesion layer on the inner wall of high viscosity sludge, maintain a constant flow area, ensure stable sludge dewatering treatment capacity, and thus improve sludge treatment efficiency and equipment reliability.

[0026] Working principle: An external controller starts the first drive motor 8 and the second drive motor 10. The first drive motor 8 drives the screw conveyor 9 to rotate, and the second drive motor 10 rotates, driving the gear 11 to rotate, which in turn drives the drum 12 to rotate. Because the rotational speeds of the first drive motor 8 and the second drive motor 10 maintain a fixed speed difference, the rotational speed of the screw conveyor 9 is ensured to be lower than the rotational speed of the drum 12. The sludge to be dewatered is added to the inside of the screw conveyor 9 from the raw material pipe 17. As the screw conveyor 9 rotates, the sludge particles, due to their higher density and greater centrifugal force, are thrown and adhere to the inner wall of the drum 12, forming a solid ring layer. Water, due to its lower density and smaller centrifugal force, only forms a liquid ring layer inside the solid ring layer. The sludge in the solid ring layer is slowly pushed by the screw conveyor 9 to the drum 12 and the conical end of the screw conveyor 9, and continuously discharged into the outer casing 1 through the dry material outlet 14 around the drum 12. The liquid in the liquid ring layer continuously overflows from the weir and is discharged outside the drum 12, forming a solid ring layer. The sludge and water are separated into a liquid and then collected, discharged into the drain pipe 25 by gravity, thus achieving sludge and water separation. An external controller starts the blower 2, blowing air from the transmission pipe 3 into the hollow frame 5. As the drum 12 rotates, multiple sets of dry material outlets 14 on one side pass sequentially through the brush bristles 7 and air outlets 6, blowing off the sludge adsorbed on the inner wall of the dry material outlets 14. The brush bristles 7 also sweep off the sludge adhering to the dry material outlets 14, cleaning them and preventing sludge from being thrown out. 4. In case of blockage, after the sludge enters the screw conveyor 9, the third drive motor 181 is started by the external controller, which drives the connecting frame 18 to rotate. The resulting centrifugal force throws the scraper 23 outward. Since the third drive motor 181 is a variable speed motor, when the speed is high, the scraper 23 is in contact with the inner wall of the screw conveyor 9, which can scrape off the sludge adsorbed on the inner wall of the screw conveyor 9, avoid the formation of a stubborn adhesion layer on the inner wall by high viscosity sludge, maintain a constant flow area, and ensure a stable sludge dewatering treatment capacity.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A centrifugal dewatering sludge disposal apparatus characterized by: include: A housing (1) is provided, a fan (2) is installed on one side of the housing (1), a transmission pipe (3) is installed at the output end of the fan (2), the transmission pipe (3) is installed inside the housing (1), a connecting rod (4) is fixedly connected to the inner wall of the housing (1), a hollow frame (5) is installed at one end of the connecting rod (4), one end of the transmission pipe (3) is connected to the hollow frame (5), an air outlet (6) is opened on one side of the hollow frame (5), bristles (7) are fixedly connected to one side of the hollow frame (5), and a first drive motor (8) is installed on one side of the housing (1). The output end of the motor (8) is fixedly connected to the screw conveyor (9). A second drive motor (10) is installed on one side of the housing (1). A gear (11) is fixedly connected to the output end of the second drive motor (10). A rotating drum (12) is provided on the outside of the screw conveyor (9). Teeth are provided on the outside of the rotating drum (12). The rotating drum (12) is meshed with the gear (11). A spiral plate (13) is fixedly connected to the surface of the rotating drum (12). A dry material outlet (14) is provided at one end of the rotating drum (12). The brush bristles (7) are in contact with the dry material outlet (14).

2. A centrifugal dewatering sludge disposal apparatus according to claim 1, wherein: The screw conveyor (9) has a sludge outlet (15) and a rotary joint (16) is installed at one end of the screw conveyor (9). A raw material pipe (17) is installed on the rotary joint (16) and passes through the outer shell (1).

3. A centrifugal dewatering sludge disposal apparatus according to claim 1, wherein: One end of the drum (12) is rotatably connected to the inside of the outer shell (1). The screw conveyor (9) is equipped with a third drive motor (181). The output end of the third drive motor (181) is fixedly connected to a connecting frame (18). The connecting frame (18) has symmetrically opened limit slots (19) inside.

4. A centrifugal dewatering sludge disposal apparatus according to claim 3, wherein: The limiting groove (19) is internally slidably connected to a limiting plate (20), and a spring (21) is fixedly connected to the inner wall of the connecting frame (18). One end of the spring (21) and one side of the limiting plate (20) are fixedly connected to a telescopic frame (22).

5. A centrifugal dewatering sludge disposal apparatus according to claim 4, wherein: A scraper (23) is fixedly connected to one side of the telescopic frame (22), and a discharge port (24) is opened at the bottom of the outer shell (1). The discharge port (24) is located below the dry material discharge port (14), and a drain pipe (25) is installed on the lower surface of the outer shell (1).

6. A centrifugal dewatering sludge disposal apparatus according to claim 1 wherein: The equipment is connected to an external controller, which is used to control the start and stop of the fan (2), the first drive motor (8), the second drive motor (10) and the third drive motor (181).

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