A high-temperature composting device for municipal sludge

Abstract

The utility model relates to municipal sludge high temperature composting treatment device technical field especially relates to a kind of municipal sludge high temperature composting treatment device.A kind of municipal sludge high temperature composting treatment device, including shell, support frame, feed inlet, pump body, air inlet pipe, ring type pipe, gas pipe and air jet head, shell bottom is fixedly connected with support frame, shell top left side is fixedly connected with feed inlet, shell right side is fixedly connected with pump body, pump body left side is fixedly connected with air inlet pipe, air inlet pipe left side is fixedly connected with ring type pipe, ring type pipe is fixedly connected with shell inner wall, ring type pipe right side bottom is fixedly connected with gas pipe, gas pipe left side is also fixedly connected with two ring type pipes, three ring type inboard are fixedly connected with multiple air jet heads.The utility model is through the pump body and is evenly supplied oxygen to sludge interior by air inlet pipe, gas pipe, ring type pipe and air jet head, enhances ventilation effect, promotes microbial activity, reduces the stench gas generation brought by anaerobic fermentation.

Description

Technical Field

[0001] This utility model relates to the technical field of municipal sludge high-temperature composting treatment devices, and in particular to a municipal sludge high-temperature composting treatment device. Background Technology

[0002] With the acceleration of urbanization and the continuous improvement of sewage treatment capacity, the output of municipal sludge is also showing a rapid growth trend. Municipal sludge is a byproduct of sewage treatment, containing rich organic matter and nutrients, and has certain resource utilization value. However, sludge also contains pathogenic microorganisms, heavy metals, and recalcitrant organic matter. If not properly treated, it will cause secondary pollution to the environment. Therefore, how to reduce, render harmless, and recycle municipal sludge has become one of the important issues in current urban environmental protection. At present, high-temperature composting, as an economical and effective sludge treatment method, is widely used in the field of sludge treatment. High-temperature composting, through the action of microorganisms, decomposes the organic matter in sludge into stable humus under certain temperature conditions, thereby achieving the purpose of reducing volume, reducing pathogen content, and improving soil structure. Sufficient oxygen supply is required during composting to promote aerobic microbial activity. However, the ventilation system design of many traditional composting facilities is unreasonable, resulting in insufficient oxygen supply and frequent anaerobic fermentation. This not only reduces the quality of compost but also produces a large amount of malodorous gases, such as hydrogen sulfide and ammonia, causing air pollution.

[0003] Therefore, a high-temperature composting treatment device for municipal sludge needs to be designed to solve the above problems. Utility Model Content

[0004] To overcome the shortcomings of insufficient ventilation and oxygen supply, which easily produces foul-smelling gases, this utility model provides a high-temperature composting treatment device for municipal sludge.

[0005] The technical solution is as follows: A municipal sludge high-temperature composting treatment device includes a shell, a support frame, a feed inlet, a pump body, an air inlet pipe, an annular pipe, an air delivery pipe, a jet nozzle, an air outlet, a discharge pipe, a discharge pump, and a controller. The support frame is fixedly connected to the bottom of the shell. The feed inlet is fixedly connected to the top left side of the shell. The pump body is fixedly connected to the right side of the shell. The air inlet pipe is fixedly connected to the left side of the pump body. An annular pipe is fixedly connected to the left side of the air inlet pipe, passing through the shell. The annular pipe is fixedly connected to the inner wall of the shell. An air delivery pipe is fixedly connected to the bottom right side of the annular pipe. Two annular pipes are also fixedly connected to the left side of the air delivery pipe. Multiple jet nozzles are fixedly connected to the inner side of each of the three annular pipes. An air outlet is fixedly connected to the front top of the shell. A discharge pipe is fixedly connected to the bottom of the shell. A discharge pump is installed on the discharge pipe. A controller is fixedly connected to the front of the shell. The controller is electrically connected to the discharge pump and the jet nozzles.

[0006] In one embodiment, the device further includes a heater and a temperature sensor. A cavity is provided inside the housing, and the heater is fixedly connected inside the cavity. A temperature sensor is installed on the top right side of the housing, and the controller is electrically connected to the heater and the temperature sensor.

[0007] In one embodiment, the gas outlet is equipped with a purification box for purifying the gas.

[0008] In one embodiment, a humidity sensor is also included, which is mounted on the top right side of the housing, and the controller is electrically connected to the humidity sensor.

[0009] In one embodiment, the device further includes a motor and a stirring shaft. The motor is fixedly connected to the top of the housing, and the stirring shaft is fixedly connected to the output shaft at the bottom of the motor. The controller is electrically connected to the motor.

[0010] In one embodiment, the assembly further includes a fixed frame, a scraper shaft, and a pulley assembly. The fixed frame is fixedly connected to the top of the stirring shaft, and the scraper shaft is rotatably connected to the inner side of the fixed frame away from the center. The scraper shaft is provided with scraper blades, and a pulley assembly is provided between the scraper shaft and the stirring shaft, with the pulley assembly located inside the fixed frame.

[0011] Beneficial effects: 1. This utility model uses a pump body to uniformly supply oxygen to the inside of the sludge through an air inlet pipe, an air delivery pipe, an annular pipe and a jet nozzle, which enhances the ventilation effect, promotes microbial activity and reduces the generation of malodorous gases caused by anaerobic fermentation.

[0012] 2. This utility model uses temperature and humidity sensors to monitor internal environmental parameters in real time, and the controller automatically adjusts the operation of the heater and pump to ensure that the composting process is carried out under optimal conditions, thus significantly improving fermentation efficiency.

[0013] 3. This utility model uses a purification box inside the exhaust pipe to adsorb and filter the discharged waste gas, removing harmful substances such as ammonia and hydrogen sulfide, ensuring that the waste gas meets emission standards and reducing the risk of secondary pollution.

[0014] 4. This utility model uses the synchronous rotation of the stirring shaft and the scraper shaft, and the scraper blades continuously stir and break up the sludge to prevent material clumping, improve fermentation uniformity, and shorten the composting cycle. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the heater, pump body, and discharge pump components of this utility model.

[0017] Figure 3This is a three-dimensional cross-sectional view of the components of this utility model, including the discharge pipe, discharge pump, and motor.

[0018] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the annular pipe, the gas delivery pipe, and the jet head.

[0019] Figure 5 This is a three-dimensional cross-sectional view of the stirring shaft, fixing frame, and scraping shaft of this utility model.

[0020] The components in the diagram are labeled as follows: 1-shell, 2-support frame, 3-feed inlet, 4-heater, 5-pump body, 6-air inlet pipe, 7-ring pipe, 71-air delivery pipe, 72-jet nozzle, 8-air outlet, 9-humidity sensor, 10-temperature sensor, 11-discharge pipe, 12-discharge pump, 13-motor, 14-stirring shaft, 15-fixed frame, 16-scraper shaft, 17-pulley assembly, 18-controller. Detailed Implementation

[0021] Example: A high-temperature composting device for municipal sludge treatment, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the device includes a housing 1, a support frame 2, a feed inlet 3, a pump body 5, an air inlet pipe 6, an annular pipe 7, an air delivery pipe 71, a jet nozzle 72, an air outlet 8, a discharge pipe 11, a discharge pump 12, and a controller 18. The support frame 2 is fixedly connected to the bottom of the housing 1. The feed inlet 3 is fixedly connected to the top left side of the housing 1. The pump body 5 is installed on the right side of the housing 1. The air inlet pipe 6 is fixedly connected to the left side of the pump body 5. The annular pipe 7 is fixedly connected to the left side of the air inlet pipe 6, passing through the housing 1. The annular pipe 7 is fixedly connected to the inner wall of the housing 1. The air delivery pipe 71 is fixedly connected to the bottom right side of the annular pipe 7. Two annular tubes 7 are fixedly connected to the left side. Multiple jet nozzles 72 are fixedly connected to the inner side of each of the three annular tubes 7. An air outlet 8 is fixedly connected to the top front side of the housing 1. A purification box for purifying gas is provided inside the air outlet 8. The purification box contains purification materials such as activated carbon and biological filter media to remove harmful gases such as odor, ammonia, and hydrogen sulfide from the exhaust gas. A discharge pipe 11 is fixedly connected to the bottom of the housing 1. A discharge pump 12 is installed on the discharge pipe 11. A controller 18 is fixedly connected to the front side of the housing 1 by bolts. The controller 18 is electrically connected to the discharge pump 12 and the jet nozzles 72.

[0022] like Figure 2 and Figure 3 As shown, it also includes a heater 4 and a temperature sensor 10. A cavity is opened on the inner side of the housing 1, and the heater 4 is fixedly connected to the cavity by bolts. The temperature sensor 10 is installed on the top right side of the housing 1. The controller 18 is electrically connected to the heater 4 and the temperature sensor 10.

[0023] like Figure 1 As shown, it also includes a humidity sensor 9, which is installed on the top right side of the housing 1, and the controller 18 is electrically connected to the humidity sensor 9.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, it also includes a motor 13 and a stirring shaft 14. The top of the housing 1 is fixedly connected to the motor 13 by bolts, and the output shaft at the bottom of the motor 13 is fixedly connected to the stirring shaft 14. The stirring shaft 14 is located inside the housing 1, and the controller 18 is electrically connected to the motor 13.

[0025] like Figure 5 As shown, it also includes a fixed frame 15, a scraper shaft 16 and a pulley set 17. The fixed frame 15 is fixedly connected to the top of the stirring shaft 14. The scraper shaft 16 is rotatably connected to the inner side of the fixed frame 15 away from the center end. The scraper shaft 16 is provided with scraper blades. The pulley set 17 is provided between the scraper shaft 16 and the stirring shaft 14, and the pulley set 17 is located inside the fixed frame 15.

[0026] When this device is used for high-temperature composting of municipal sludge, the sludge and materials to be composted are first poured into the housing 1 through the feed inlet 3. Then, the controller 18 sets the required temperature and humidity for composting. The controller 18 activates the temperature sensor 10 to monitor the temperature inside the housing 1 in real time and transmits the data to the controller 18. The controller 18 continuously activates the heater 4 to heat the inside of the housing 1 to a suitable temperature of 55℃~65℃ for microbial activity. Then, the controller 18 continuously activates the pump body 5 and the jet nozzle 72. Gas enters the gas delivery pipe 71 through the air inlet pipe 6. The gas delivery pipe 71 connects to multiple ring pipes 7 to achieve gas circulation. The ring pipes 7 and the jet nozzle 72 supply oxygen to the inside of the sludge to promote aerobic fermentation. The gas originally inside the housing 1 is discharged through the air outlet 8. The purification box inside the air outlet 8 filters the discharged gas to achieve environmentally friendly emissions. Then, the controller 18 activates the humidity sensor 9 to monitor the internal environmental parameters in real time and transmits the data to the controller 18 for easy viewing by staff and timely addition of liquid for adjustment.

[0027] Workers start motor 13 via controller 18. Motor 13 drives stirring shaft 14 to rotate, stirring the sludge. Stirring shaft 14 drives fixed frame 15 and scraper shaft 16 to rotate synchronously. At the same time, the scraper shaft 16 rotates via pulley group 17, causing the scraper blades to stir and break up the sludge, preventing clumping and improving fermentation efficiency. Waste gas generated during composting is discharged through exhaust pipe 8. Purification box adsorbs and filters the waste gas, removing odors and harmful gases, achieving environmentally friendly emissions. After composting is completed, motor 13, heater 4, temperature sensor 10, humidity sensor 9 and jet nozzle 72 are turned off via controller 18. The container is placed directly below discharge pump 12, and then discharge pump 12 is started via controller 18. Sludge is discharged through discharge pipe 11, collecting stabilized and harmless humic sludge, which can be used for soil improvement or organic fertilizer production. After discharge is completed, discharge pump 12 is turned off via controller 18.

Claims

1. A high-temperature composting device for municipal sewage sludge, characterized in that, The system includes a housing (1), a support frame (2), a feed inlet (3), a pump body (5), an air inlet pipe (6), an annular pipe (7), an air delivery pipe (71), a jet nozzle (72), an air outlet (8), a discharge pipe (11), a discharge pump (12), and a controller (18). The support frame (2) is fixedly connected to the bottom of the housing (1). The feed inlet (3) is fixedly connected to the left side of the top of the housing (1). The pump body (5) is fixedly connected to the right side of the housing (1). The air inlet pipe (6) is fixedly connected to the left side of the pump body (5). The annular pipe (7) passes through the housing (1) on the left side and is fixedly connected to the left side of the air inlet pipe (6). 7) Fixedly connected to the inner wall of the shell (1), the bottom right side of the annular tube (7) is fixedly connected to the air supply pipe (71), and two annular tubes (7) are fixedly connected to the left side of the air supply pipe (71). Multiple jet nozzles (72) are fixedly connected to the inner side of the three annular tubes (7). An air outlet cylinder (8) is fixedly connected to the front top of the shell (1). A discharge pipe (11) is fixedly connected to the bottom of the shell (1). A discharge pump (12) is installed on the discharge pipe (11). A controller (18) is fixedly connected to the front of the shell (1). The controller (18) is electrically connected to the discharge pump (12) and the jet nozzles (72).

2. The municipal sludge high-temperature composting treatment device according to claim 1, characterized in that, It also includes a heater (4) and a temperature sensor (10). A cavity is provided inside the housing (1), and the heater (4) is fixedly connected inside the cavity. A temperature sensor (10) is installed on the top right side of the housing (1). The controller (18) is electrically connected to the heater (4) and the temperature sensor (10).

3. The municipal sludge high-temperature composting treatment device according to claim 2, characterized in that, The gas outlet (8) is equipped with a purification box for purifying the gas.

4. The municipal sludge high-temperature composting treatment device according to claim 3, characterized in that, It also includes a humidity sensor (9), which is installed on the top right side of the housing (1), and the controller (18) is electrically connected to the humidity sensor (9).

5. A municipal sludge high-temperature composting treatment device according to claim 4, characterized in that, It also includes a motor (13) and a stirring shaft (14). The motor (13) is fixedly connected to the top of the housing (1), and the stirring shaft (14) is fixedly connected to the output shaft at the bottom of the motor (13). The controller (18) is electrically connected to the motor (13).

6. The municipal sludge high-temperature composting treatment device according to claim 5, characterized in that, It also includes a fixed frame (15), a scraper shaft (16) and a pulley assembly (17). The fixed frame (15) is fixedly connected to the top of the stirring shaft (14). The scraper shaft (16) is rotatably connected to the inner side of the fixed frame (15) away from the center. The scraper shaft (16) is provided with scraper blades. The pulley assembly (17) is provided between the scraper shaft (16) and the stirring shaft (14), and the pulley assembly (17) is located inside the fixed frame (15).

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