Wet sludge treatment equipment

Abstract

The utility model relates to the technical field of sludge treatment, and discloses wet sludge treatment equipment which comprises a scraper elevator, a wet sludge bin and a conveying device. And the scraper elevator receives the dry sludge and conveys the dry sludge to the wet sludge bin for storage. The conveying device is composed of an adjustable double-screw conveyor and a shaftless screw conveyor and can adapt to changes of humidity, viscosity and flow of the sludge, it is guaranteed that the sludge is evenly distributed in the conveying process, and energy consumption and maintenance cost are reduced. An electric knife gate valve is arranged at a sludge outlet in the bottom of the wet sludge bin, and remote control and quick opening and closing are achieved. The top end of the wet sludge bin is provided with a handrail, a top plate reinforcing channel steel, a feeding port, an inspection port and a level gage connector, and safety and structural stability are improved. The arch breaking device is arranged in the hopper-shaped bin at the bottom of the wet sludge bin, and the arch breaking device shaft is driven by the speed reducer to rotate, so that the wall hanging and arching phenomena of sludge are effectively eliminated, the sludge discharging efficiency and the system stability are improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of sludge treatment, and particularly relates to a wet sludge material treatment device. Background Art

[0002] The wet sludge material treatment device mainly treats the dry mud discharged from a spiral press or a belt filter press. The moisture content is generally about 80%, with high viscosity and poor fluidity. It receives the mud from the discharge port of the spiral press or the belt filter press, is lifted by a scraper elevator, and then falls into a wet sludge bin for storage. Then, it is transported from the discharge port of the wet sludge bin to a sludge transport vehicle or a sludge drying system.

[0003] The scraper elevator receives the sludge from the discharge port of the spiral press or the belt filter press, lifts it, and then falls into the wet sludge bin for storage. After the sludge in the wet sludge bin is stored to a certain height, the gate valve at the discharge port is opened, and the conveying device is started to transport the sludge to a sludge transport vehicle or a sludge drying system. Since the sludge has a high moisture content and high viscosity, wall sticking and arching phenomena will occur. Although the gate valve at the outlet of the wet sludge bin is opened, once the wall sticking and arching phenomena occur, the sludge discharge amount at the outlet of the wet sludge bin will be affected or no sludge will be discharged.

[0004] Therefore, when the wet sludge bin treats sludge with high moisture content and high viscosity, the wall sticking and arching phenomena are common problems. This is mainly caused by the high viscosity of the sludge and the action of gravity. Especially when the sludge is stored to a certain height, this phenomenon will be more obvious. The wall sticking and arching phenomena will cause the sludge discharge amount at the outlet of the wet sludge bin to be affected or no sludge to be discharged, thus affecting the normal operation of the entire sludge treatment system.

[0005] In view of this, we propose a wet sludge material treatment device that can effectively reduce the wall sticking and arching phenomena at the outlet of the wet sludge bin and ensure the stable operation of the sludge treatment system. Summary of the Utility Model

[0006] The present invention aims to solve the technical problems in the above-mentioned prior art that wall sticking and arching phenomena easily occur during the storage of wet sludge. These phenomena will affect the sludge discharge amount at the outlet at the bottom of the bin, or even cause no sludge to be discharged, seriously affecting the normal operation of the sludge treatment system.

[0007] To achieve the above object, the utility model provides the following technical solutions:

[0008] A wet sludge material treatment device includes a scraper elevator that receives dry mud from the discharge port of a spiral press or a belt filter press, a wet sludge bin that stores the dry mud lifted and dropped by the scraper elevator, and a conveying device that transports the dry mud falling from the outlet at the bottom of the wet sludge bin to a sludge transport vehicle or a sludge drying system.

[0009] Inside the hopper-shaped bin at the bottom of the wet sludge silo, there is an arch-breaking device used to eliminate the wall sticking and arching of wet sludge, thereby ensuring that the sludge discharge volume at the sludge outlet at the bottom of the wet sludge silo is not affected.

[0010] The arch-breaking device includes an arch-breaking device shaft support frame fixed inside the hopper-shaped bin, an arch-breaking device shaft bearing sleeve, an arch-breaking device shaft bearing, and an arch-breaking device shaft arranged in sequence from outside to inside at the center position of the arch-breaking device shaft support frame, an upper bracket of the arch-breaking device rod fixed on the arch-breaking device shaft, a lower bracket of the arch-breaking device rod, and an arch-breaking device rod connecting the upper bracket of the arch-breaking device rod and the lower bracket of the arch-breaking device rod.

[0011] Once the wall sticking and arching phenomena occur in the wet sludge silo, the internal special arch-breaking device can be activated to eliminate the wall sticking and arching of wet sludge, and the sludge discharge volume at the outlet will not be affected.

[0012] Preferably, an electric knife gate valve is provided at the sludge outlet at the bottom of the wet sludge silo. The electric knife gate valve is connected to the control system and can be remotely controlled to achieve rapid opening and closing.

[0013] Preferably, the conveying device includes an adjustable double-screw conveyor and a shaftless screw conveyor.

[0014] Preferably, the sludge outlet at the bottom of the wet sludge silo is connected to the feeding port of the adjustable double-screw conveyor, and the discharging port of the adjustable double-screw conveyor is connected to the feeding port of the shaftless screw conveyor.

[0015] The designs of the adjustable double-screw conveyor and the shaftless screw conveyor help reduce the risk of sludge blockage during transportation because they can adapt to changes in the humidity, viscosity, and flow rate of the sludge.

[0016] Preferably, railings are provided on the outer periphery at the top of the wet sludge silo, and top plate reinforcing channel steels are provided at the top. At the top of the wet sludge silo, there are a feeding port, an inspection port, and a level gauge interface for cooperating with the scraper elevator to receive materials.

[0017] Preferably, a reducer mounting plate is fixedly provided at the center of the top of the top plate reinforcing channel steel, and a reducer for driving the rotation of the arch-breaking device shaft on the arch-breaking device is installed on the reducer mounting plate.

[0018] Preferably, a ladder is provided on one side of the wet sludge silo.

[0019] Compared with the prior art, the technical effects and advantages of the present utility model are as follows: The wet sludge treatment equipment receives the dry sludge generated by the screw press or belt filter press through the scraper elevator, and then conveys the dry sludge to the wet sludge bin for storage. The wet sludge bin is designed with an anti-arching device to prevent the sludge from wall hanging and arching during storage, ensuring that the sludge can flow smoothly from the sludge outlet. The sludge outlet is equipped with an electric knife gate valve, which can be remotely controlled, facilitating the adjustment of the sludge discharge volume and improving the flexibility and automation level of the system.

[0020] The conveying device includes an adjustable double-screw conveyor and a shaftless screw conveyor, which can adapt to the changes in the humidity, viscosity and flow rate of the sludge, ensure the uniform distribution of the sludge during transportation, and reduce the energy consumption and maintenance cost. This conveying method also has the advantages of simple structure, convenient maintenance and small occupied space, and is suitable for installation and use in places with limited space.

[0021] The top of the wet sludge bin is provided with a railing and a top plate reinforcing channel steel, which increases the structural stability and bearing capacity of the bin body. The top is also provided with a feed inlet, an inspection port and a level gauge interface, which is convenient for monitoring the situation inside the bin and controlling the feed volume. Description of the Drawings

[0022] Figure 1 is the front view of the present utility model;

[0023] Figure 2 is the top view of the present utility model;

[0024] Figure 3 is the main sectional view of the anti-arching device of the present utility model;

[0025] Figure 4 is the top view of the anti-arching device shaft, the upper bracket of the anti-arching device rod, the lower bracket of the anti-arching device rod and the anti-arching device rod of the present utility model;

[0026] Figure 5 is the top view of the wet sludge bin of the present utility model;

[0027] Figure 6 is the structural schematic diagram of the anti-arching device shaft support frame, the anti-arching device shaft support sleeve, the anti-arching device shaft support and the anti-arching device shaft of the present utility model;

[0028] Figure 7 is the bottom view of the wet sludge bin of the present utility model.

[0029] In the figure: 1. Scraper elevator; 2. Wet sludge silo; 3. Electric knife gate valve; 4. Adjustable double screw conveyor; 5. Shaftless screw conveyor; 6. Hopper-shaped bin; 7. Arch-breaking device; 8. Arch-breaking shaft support frame; 9. Arch-breaking shaft support sleeve; 10. Arch-breaking shaft support; 11. Arch-breaking shaft; 12. Upper support of arch-breaking rod; 13. Lower support of arch-breaking rod; 14. Arch-breaking rod; 15. Railings; 16. Top plate reinforcing channel steel; 17. Feed inlet; 18. Inspection opening; 19. Level gauge interface; 20. Reducer mounting plate; 21. Reducer; 22. Ladder. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0031] The following is a further detailed description in conjunction with the attached Figure 1-7 This application will be further described in detail.

[0032] The embodiment of this application discloses a wet sludge treatment device, including a scraper elevator 1 that receives dry sludge from the sludge outlet of a spiral press or belt filter press, a wet sludge silo 2 that stores the dry sludge lifted and dropped by the scraper elevator 1, and a conveying device that conveys the dry sludge falling from the bottom sludge outlet of the wet sludge silo 2 to a sludge transport vehicle or a sludge drying system;

[0033] The conveying device includes an adjustable double screw conveyor 4 and a shaftless screw conveyor 5.

[0034] The bottom sludge outlet of the wet sludge silo 2 is connected to the feeding port of the adjustable double screw conveyor 4, and the discharging port of the adjustable double screw conveyor 4 is connected to the feeding port of the shaftless screw conveyor 5.

[0035] The designs of the adjustable double screw conveyor 4 and the shaftless screw conveyor 5 help reduce the risk of sludge blockage during transportation because they can adapt to changes in sludge humidity, viscosity, and flow rate. Both the double screw and shaftless screw conveyor 5 are efficient and stable conveying methods that can ensure the uniform distribution of sludge during transportation, reduce energy consumption and maintenance costs. The double screw and shaftless screw conveyor 5 usually have a simple structure and are easy to maintain, which helps reduce long-term operating costs. This conveying method occupies relatively little space and is suitable for installation in places with limited space. The double screw and shaftless screw conveyor 5 can adapt to different working conditions, including sludge with different temperatures, humidities, and viscosities. Due to reducing sludge blockage and wear, these conveyors can extend the service life of the equipment.

[0036] An electric knife gate valve 3 is provided at the sludge discharge outlet at the bottom of the wet sludge silo 2.

[0037] The electric knife gate valve 3 can be remotely controlled to achieve rapid opening and closing, facilitating operators to adjust the sludge discharge volume according to actual needs, improving the flexibility and automation level of the system. The automatic control of the electric knife gate valve 3 reduces the risk of manual operation and improves the safety performance of the system.

[0038] A railing 15 is provided on the outer periphery of the top end of the wet sludge silo 2, and a top plate reinforcing channel steel 16 is provided at the top. An inlet 17 for receiving materials in cooperation with the scraper elevator 1, an inspection port 18, and a level gauge interface 19 are provided at the top of the wet sludge silo 2.

[0039] The setting of the railing 15 provides safety protection for operators to prevent accidents during operation or maintenance. The addition of the top plate reinforcing channel steel 16 improves the structural stability of the wet sludge silo 2, increases the load-bearing capacity of the silo body, and is suitable for storing heavier or higher-load sludge. The design of the inspection port 18 enables convenient inspection and maintenance of the inside of the silo. The level gauge interface 19 is used to install a level gauge to monitor the sludge level in the silo in real time, facilitating the control of the feeding volume and the sludge discharge volume. The design of the inlet 17 cooperates with the material receiving port of the scraper elevator 1, enabling the sludge to smoothly enter the silo without causing congestion or damaging the equipment. A ladder 22 is provided on one side of the wet sludge silo 2. The setting of the ladder 22 provides a safe way for operators to get on and off the silo, facilitating daily inspection and maintenance work.

[0040] An arch-breaking device 7 is provided in the hopper-shaped bin 6 at the bottom of the wet sludge silo 2 to eliminate the situation of wet sludge wall sticking and arching, thereby ensuring that the sludge discharge volume at the sludge discharge outlet at the bottom of the wet sludge silo 2 is not affected.

[0041] The arch-breaking device 7 includes an arch-breaking shaft support frame 8 fixed inside the hopper-shaped bin 6, an arch-breaking shaft bearing sleeve 9, an arch-breaking shaft bearing 10, and an arch-breaking shaft 11 that are arranged in sequence from outside to inside at the central position of the arch-breaking shaft support frame 8, an upper arch-breaking stick support 12, an upper arch-breaking stick support 13 fixed on the arch-breaking shaft 11, and an arch-breaking stick 14 connecting the upper arch-breaking stick support 12 and the upper arch-breaking stick support 13. A reducer mounting plate 20 is fixedly provided at the center of the top of the top plate reinforcing channel steel 16, and a reducer 21 for driving the rotation of the arch-breaking shaft 11 on the arch-breaking device 7 is installed on the reducer mounting plate 20. The settings of the reducer mounting plate 20 and the reducer 21 for driving the rotation of the arch-breaking shaft 11 ensure the uniform driving of the arch-breaking device 7 and effectively eliminate the phenomena of sludge wall sticking and arching.

[0042] The arch-breaking device 7 can effectively break the wall adhesion and arch formation of sludge at the bottom of the silo, ensuring that the sludge can flow smoothly from the sludge outlet, thereby improving the sludge discharge efficiency. Through the arch-breaking device 7, the sludge silo can stably supply sludge to downstream equipment, ensuring the continuous and stable operation of the entire sludge treatment line. Wall adhesion and arch formation can lead to blockage of the silo outlet, which requires regular cleaning and maintenance. The use of the arch-breaking device 7 can reduce the occurrence of such blockages, thereby reducing maintenance costs and avoiding excessive wear on equipment such as the scraper elevator 1 and conveyor device caused by wall adhesion and arch formation, extending the service life of the equipment. The arch-breaking device 7 is flexibly designed and can adapt to sludge of different properties and concentrations, with strong adaptability. The arch-breaking device 7 usually has a high degree of automation, simple operation, reducing the labor intensity of operators. By improving the sludge treatment efficiency, it reduces environmental pollution, meeting the requirements of green development and circular economy. The arch-breaking device 7 can effectively prevent equipment failures caused by sludge blockage, improving the safety performance of the system.

[0043] In summary, the introduction of the arch-breaking device 7 significantly improves the sludge discharge performance of the wet sludge silo 2, ensures the stable operation of the sludge treatment system, while improving the treatment efficiency and safety, and helps to achieve the resource utilization and harmless treatment of sludge.

[0044] The scraper elevator 1 conveys dry mud to the wet sludge silo 2, and the arch-breaking device 7 ensures that the sludge can flow smoothly. The sludge is conveyed to downstream equipment such as sludge transport vehicles or sludge drying systems through the adjustable double-screw conveyor 4 and the shaftless screw conveyor 5. The electric knife gate valve 3 is used to control and adjust the sludge discharge volume. The entire system is automatically controlled by the electric control system, improving the convenience and efficiency of operation, while reducing the risk of manual operation and improving the safety performance of the system. Through this design, the equipment can effectively treat sludge, reduce environmental pollution, meet the requirements of green development and circular economy, while extending the service life of the equipment and reducing long-term operation costs.

[0045] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A wet sludge material processing equipment, comprising a scraper elevator (1) for receiving dry sludge from a sludge outlet of a screw press or a belt filter press, a wet sludge silo (2) for storing the dry sludge lifted by the scraper elevator (1), and a conveying device for conveying the dry sludge falling from the bottom sludge outlet of the wet sludge silo (2) to a sludge truck or a sludge drying system, characterized in that: A bucket-shaped bin (6) at the bottom of the wet sludge bin (2) is provided with an arch-breaking device (7) for eliminating wet sludge from hanging on the wall and arching, thereby ensuring that the amount of sludge discharged from the bottom sludge outlet of the wet sludge bin (2) is not affected; The arch breaker device (7) comprises an arch breaker shaft support frame (8) fixed inside the bucket-shaped bin (6), an arch breaker shaft support sleeve (9) arranged at the center of the arch breaker shaft support frame (8) and arranged in sequence from the outside to the inside, an arch breaker shaft support (10) and an arch breaker shaft (11), an arch breaker rod upper end support (12) fixed on the arch breaker shaft (11), an arch breaker rod lower end support (13), and an arch breaker rod (14) connecting the arch breaker rod upper end support (12) and the arch breaker rod lower end support (13).

2. A wet sludge processing equipment according to claim 1, characterized in that: An electric knife gate valve (3) is provided at the mud outlet at the bottom of the wet mud silo (2).

3. A wet sludge processing equipment according to claim 2, characterized in that: The conveying device comprises an adjustable double screw conveyor (4) and a shaftless screw conveyor (5).

4. A wet sludge processing equipment according to claim 3, characterized in that: The mud outlet at the bottom of the wet mud silo (2) is connected to the material receiving port of the adjustable double screw conveyor (4), and the material outlet of the adjustable double screw conveyor (4) is connected to the material receiving port of the shaftless screw conveyor (5).

5. A wet sludge processing equipment according to claim 1, characterized in that: The top periphery of the wet sludge silo (2) is provided with a railing (15) and a top plate reinforcement channel steel (16) is provided on the top. The top of the wet sludge silo (2) is provided with a feed port (17) for cooperating with the scraper elevator (1) to receive materials, an inspection port (18) and a material level meter interface (19).

6. A wet sludge processing equipment according to claim 5, characterized in that: A reducer mounting plate (20) is fixedly provided at the top center of the top plate reinforcement channel steel (16), and a reducer (21) for driving the arch breaker shaft (11) on the arch breaking device (7) to rotate is installed on the reducer mounting plate (20).

7. A wet sludge processing equipment according to claim 1, characterized in that: A ladder (22) is provided on one side of the wet sludge silo (2).

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