An internal dust cleaning device of a sludge low-temperature drying machine

Abstract

The utility model relates to the technical field of sludge treatment and disposal, specifically relates to a dust cleaning device in sludge low temperature drying machine, including dust collection handle and dust collector. Dust collection handle includes dust removal dust cover and handle, dust removal dust cover and handle articulate, set up in dust removal dust cover dust collecting cover, set up plane pulley on the both sides outside dust collecting cover, set up brush roller in the inside of dust collecting cover, plane pulley and brush roller are linked and set up, handle is provided with multistage, set up limiting ring on each section handle, the corrugated pipe that dust collecting cover is connected with dust collector passes through the limiting ring on each section handle setting in proper order. The utility model has the advantages of simple structure, convenient to use, and the operator does not need to enter the inside of sludge low temperature drying machine to realize the effective cleaning of the inside wall dust in the process of use, which brings convenience to actual production operation.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment and disposal technology, specifically to a dust cleaning device inside a sludge low-temperature dryer. Background Technology

[0002] In the process of reducing and utilizing residual sludge from municipal wastewater treatment plants, sludge drying is an essential technical means. The process involves further dewatering the sludge after mechanical pressing and dewatering at the front end through a low-temperature sludge dryer, so that the moisture content of the final sludge is reduced to below 20%, thereby reducing the amount of sludge and laying the foundation for resource utilization in subsequent treatment processes.

[0003] Low-temperature drying of sludge involves circulating air being introduced from the bottom of a low-temperature sludge dryer. As the air rises, it comes into full contact with and exchanges heat with the sludge on the conveyor belt, further removing moisture from the sludge and thus achieving the drying process. Due to the need for circulating air and to prevent the odor from escaping during the sludge drying process, low-temperature sludge dryers are generally box-type equipment.

[0004] A large amount of dust is generated during the sludge drying process. The purpose of low-temperature drying is to reduce the amount of dust generated, thereby reducing the risk of dust explosion. Low-temperature sludge drying is currently the mainstream process. However, during equipment operation, although the amount of dust generated is reduced, it is still unavoidable. Due to electrostatic adsorption and other effects, some of the generated dust will be adsorbed on the inner wall of the sludge low-temperature drying machine, which poses an explosion risk (if a dust explosion occurs, a secondary dust explosion may occur under the action of the shock wave). Therefore, in actual production, the dust on the inner wall of the sludge low-temperature drying machine needs to be cleaned regularly to reduce safety hazards.

[0005] Because sludge dryers are quite deep, existing methods for cleaning the inner walls typically involve opening the access panel and manually entering the dryer. This is problematic because the interior of the dryer is narrow and difficult for workers to access. Furthermore, the dust generated during cleaning poses safety and health risks to workers. Therefore, this invention proposes a dust cleaning device for the interior of a sludge dryer, allowing workers to clean the internal dust from the outside of the equipment, making the process safer and more convenient. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of the prior art by providing an internal dust cleaning device for a sludge low-temperature dryer, so as to achieve the purpose of cleaning the dust accumulated on the inner wall of the equipment without entering the equipment.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a dust cleaning device for the interior of a sludge low-temperature drying machine, comprising a dust suction handle; the dust suction handle comprises a dust removal hood and a handle, the dust removal hood and the handle being hinged together; the dust removal hood includes a dust collection hood, with flat pulleys provided on both sides of the outer side of the dust collection hood, and a brush roller provided inside the dust collection hood, the brush roller being linked to the flat pulleys; an air extraction port is provided on the dust collection hood, and the air extraction port is connected to a dust collector through a corrugated pipe.

[0008] Furthermore, the dust collection hood is provided with mounting holes on both sides, and connecting parts are rotatably installed through the mounting holes on both sides. The outer sides of the connecting parts on both sides are connected to the flat pulleys, and the inner sides of the connecting parts on both sides are connected to the brush rollers.

[0009] Furthermore, the outer side of the connector is provided with a first threaded hole, which cooperates with the flat pulley; the inner side of the connector is provided with a mating hole, which cooperates with the rotating shaft of the brush roller, and a locking threaded hole is provided at the mating hole, through which a locking bolt is connected, and the front end of the locking bolt abuts against the rotating shaft of the brush roller.

[0010] Furthermore, a limiting ring is provided on the connector, and the limiting ring is located on the outside of the dust collection hood.

[0011] Furthermore, the upper part of the dust collection hood is hinged to the handle.

[0012] Furthermore, the handle includes a first handle and a third handle, with the front end of the first handle hinged to the top of the dust collection hood; the rear end of the first handle is detachably connected to the third handle.

[0013] Furthermore, the end of the third handle is provided with a hand-held portion.

[0014] Furthermore, it also includes a second handle, which may be provided in one or more forms. The front end of the second handle is detachably connected to the end of the first handle, and the rear end of the second handle is detachably connected to the front end of the third handle.

[0015] Furthermore, the first handle and the third handle, or the first handle, the second handle and the third handle, are all provided with limit rings; the bellows passes through the limit rings on each handle in sequence.

[0016] The beneficial effects of this utility model are: This utility model has a simple structure and is easy to use. During use, the method of linkage between the flat pulley and the brush roller is adopted, which can clean the dust deposited on the inner wall of the equipment without the need for additional mechanical equipment or power, and then use a vacuum cleaner to remove it. This allows the operators to effectively clean the dust accumulated on the inner wall of the sludge low temperature dryer without entering the machine, which brings convenience to the actual production operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the vacuum cleaner handle structure of this utility model; Figure 2 This is a top-view structural diagram of the dust removal and vacuuming hood of this utility model; Figure 3 This is a schematic diagram of the connector structure of this utility model; Figure 4 This is a schematic diagram of the second handle structure of this utility model.

[0018] The names corresponding to each mark in the diagram: 1. Dust collection hood; 11. Dust collection hood; 12. Flat pulley; 13. Air extraction port; 14. Connector; 141. First threaded hole; 142. Butt hole; 143. Locking threaded hole; 144. Limiting ring; 15. Brush roller; 2. Handle; 21. First handle; 211. Hinge; 22. Second handle; 23. Third handle; 231. Handheld part; 24. Limiting ring; 25. Threaded connector; 26. Second threaded hole; 3. Corrugated pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0020] Embodiments of this utility model: like Figure 1-4 As shown, in this embodiment, the dust cleaning device of the present invention includes a dust suction handle, which is composed of two parts: a dust suction hood 1 and a handle 2. The dust suction hood 1 and the handle 2 are hinged together. The dust suction hood 1 includes a dust collection hood 11, with flat pulleys 12 arranged on both sides of the dust collection hood 11 and a brush roller 15 arranged at the bottom of the dust collection hood 11. The brush roller 15 and the flat pulleys 12 are linked together.

[0021] The dust collection hood 11 includes a square part, a four-sided pyramid part is provided above the square part, and a hinged connection part is provided above the four-sided pyramid part, which is hinged to the handle; the front and rear side plates of the square part are bent outward and extended to form extension parts.

[0022] The flat pulleys 12 are arranged on the left and right sides of the square part of the dust collection hood 11. Mounting holes are provided on the left and right sides of the dust collection hood 11, and connectors 14 are installed through the mounting holes. The connectors 14 are made of metal or plastic. A first threaded hole 141 is provided on one side of the connector 14, and a mating hole 142 is provided on the other side of the connector 14. The connector 14 is connected to the flat pulley 12 through the first threaded hole 141. The connector 14 is inserted into the rotating shaft of the brush roller 15 through the mating hole 142 on both sides. A locking threaded hole 143 is provided on the connector 14 at the mating hole 142, which is connected to the surface of the connector 14. A locking bolt is connected through the locking threaded hole 143, and the front end of the locking bolt abuts against the rotating shaft of the brush roller 15. A limit ring 144 is provided on the connector 14, and the limit ring 144 is located on the outside of the dust collection hood 11.

[0023] An air extraction port 13 is provided on the pyramidal part of the dust collection hood 11. The air extraction port 13 is connected to the bellows 3, and the other end of the bellows 3 is connected to a vacuum cleaner (commercially available, not shown in the figure).

[0024] The handle 2 includes a first handle 21, a second handle 22, and a third handle 23. The second handle 22 may have multiple segments. A hinge portion 211 is provided at the front end of the first handle 21, which cooperates with the hinge connection portion. A threaded connector 25 is provided at the rear end of the first handle 21. A second threaded hole 26 is provided at the front end of the second handle 22, which cooperates with the threaded connector 25. A threaded connector 25 is provided at the end of the second handle 22, which cooperates with the second threaded hole 26 at the front end of another segment of the second handle 22 or with the second threaded hole 26 at the front end of the third handle 23. A hand-held portion 231 is provided at the rear end of the third handle 23. Limiting rings 24 are provided on the first handle 21, the second handle 22, and the third handle 23. A bellows 3 is connected to the air intake 13 and passes through the limiting rings 24 on the first handle 21, the second handle 22, and the third handle 23 in sequence before connecting to the vacuum cleaner.

[0025] The principle of this utility model is as follows: In use, one end of the corrugated pipe 3 is connected to the air intake 13. Then, the corrugated pipe 3 is passed through the limiting rings 24 on the first handle 21, the second handle 22, and the third handle 23 in sequence and connected to the vacuum cleaner. During the process, the second handle 22 can be set to one section, multiple sections, or not set at all, depending on the specific model and size of the equipment. The corrugated pipe 3 and the air intake 13 can be connected by thread or tenon joint, and the corrugated pipe 3 and the vacuum cleaner can be connected by tenon joint, etc. In this case, the vacuum cleaner is commercially available, and the connection method between the corrugated pipe 3 and the vacuum cleaner is also quite common, so it will not be described in detail.

[0026] After the device is assembled, the side inspection port of the sludge low-temperature dryer can be opened to remove the dust accumulated on the inner wall of the sludge low-temperature dryer. During the process, the vacuum cleaner is started, and the operator holds the handle 231 of the handle 2 and moves the dust removal hood 1 back and forth on the inner wall of the sludge low-temperature dryer. During the back and forth movement of the dust removal hood 1, the rotation of the flat pulley 12 drives the brush roller 15 to rotate, thereby cleaning the dust accumulated on the inner wall. The cleaned dust can be sucked into the vacuum cleaner through the air extraction port 13, thereby cleaning the inner wall of the sludge low-temperature dryer.

[0027] During use, a small amount of dust will fall to the bottom of the equipment, and there may also be a few cleaning dead corners on the inner wall. The dust that falls to the bottom of the equipment will be blown away by the circulating air when the sludge low-temperature dryer is restarted, and the small amount of dust on the inner wall will not affect the cleaning effect or the purpose to be achieved. This utility model plays a good auxiliary role in use.

[0028] However, it should be noted that the vacuum cleaner handle of this utility model should be as lightweight as possible to facilitate the use of operators. Plastic materials can be used to avoid the burden caused by the need for excessively long handles on some large-scale equipment.

Claims

1. A dust cleaning device inside a low-temperature sludge dryer, characterized in that: Includes a vacuum cleaner handle; the vacuum cleaner handle includes a dust removal hood (1) and a handle (2), the dust removal hood (1) and the handle (2) are hinged together; the dust removal hood (1) includes a dust collection hood (11), flat pulleys (12) are provided on both sides of the outside of the dust collection hood (11), a brush roller (15) is provided inside the dust collection hood (11), the brush roller (15) and the flat pulleys (12) are linked together; an air extraction port (13) is provided on the dust collection hood (11), the air extraction port (13) is connected to the dust collector through a corrugated pipe (3).

2. The dust cleaning device inside a low-temperature sludge dryer according to claim 1, characterized in that: The dust collection hood (11) has mounting holes on both sides, and connectors (14) are rotatably installed through the mounting holes on both sides. The outer side of the connectors (14) on both sides is connected to the flat pulley (12), and the inner side of the connectors (14) on both sides is connected to the brush roller (15).

3. The dust cleaning device inside a low-temperature sludge dryer according to claim 2, characterized in that: The connector (14) is provided with a first threaded hole (141) on the outside, which is engaged with the flat pulley (12); the connector (14) is provided with a mating hole (142) on the inside, which is engaged with the rotating shaft of the brush roller (15). A locking threaded hole (143) is provided at the mating hole (142), and a locking bolt is connected through the locking threaded hole (143). The front end of the locking bolt abuts against the rotating shaft of the brush roller (15).

4. The dust cleaning device inside a low-temperature sludge dryer according to claim 3, characterized in that: The connector (14) is provided with a limiting ring (144), which is located on the outside of the dust collection hood (11).

5. The dust cleaning device inside a low-temperature sludge dryer according to claim 1, characterized in that: The dust collection hood (11) is hinged to the handle (2) at the top.

6. The dust cleaning device inside a low-temperature sludge dryer according to claim 5, characterized in that: The handle (2) includes a first handle (21) and a third handle (23). The front end of the first handle (21) is hinged to the top of the dust collection cover (11); the rear end of the first handle (21) is detachably connected to the third handle (23).

7. The dust cleaning device inside a low-temperature sludge dryer according to claim 6, characterized in that: The third handle (23) is provided with a hand-held part (231) at its end.

8. The dust cleaning device inside a low-temperature sludge dryer according to claim 6, characterized in that: It also includes a second handle (22), which is provided with one or more. The front end of the second handle (22) is detachably connected to the end of the first handle (21), and the rear end of the second handle (22) is detachably connected to the front end of the third handle (23).

9. A dust cleaning device inside a low-temperature sludge dryer according to claim 6 or 8, characterized in that: Limiting rings (24) are provided on the first handle (21) and the third handle (23), or on the first handle (21), the second handle (22) and the third handle (23); the bellows (3) passes through the limiting rings (24) on each handle in sequence.

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