A hot air circulating water film dust collector

Abstract

The utility model discloses a kind of water film dust collectors for hot air circulation, it is related to gas dust removal equipment field. Including shell, dust removal assembly is equipped in the shell, the sidewall of the shell is equipped with air inlet and air outlet, it is characterized by: the dust removal assembly includes spraying part and gas distribution part, the gas distribution part is communicated with the air inlet and extends to the shell, the gas distribution part is opened air gap towards the sidewall direction of the shell, the air gap sprays gas to the inner wall of the shell;The spraying part is located at the top of the shell, the spraying part includes side spraying piece and top spraying piece, the side spraying piece sprays water on the inner sidewall of the shell, and the top spraying piece sprays water mist in the shell. The present application has the advantages of high dust removal efficiency, better purification effect.

Description

Technical Field

[0001] This utility model relates to the field of gas dust removal equipment, and in particular to a hot air circulating water film dust collector. Background Technology

[0002] One step in sludge treatment is sludge drying, typically using hot air as the drying medium. To save resources, the hot air is usually recycled. However, with each circulation, small sludge particles on the same surface are carried away by the hot air, resulting in the hot air after multiple cycles essentially being a high-speed, dust-laden gas. This gas, circulating repeatedly, can easily cause jamming on the conveyor belt within the drying chamber, ultimately leading to belt damage. Therefore, a water film dust collector is usually used to remove dust from the gas before hot air circulation. However, existing water film dust collectors have been found to have poor dust removal efficiency in practical use, often requiring repeated circulation of the dust-laden gas within the collector, thus impacting dust removal efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a hot air circulating water film dust collector.

[0004] This utility model is achieved using the following technical solution: a hot air circulating water film dust collector, comprising a housing, a dust removal component provided inside the housing, an air inlet and an air outlet provided on the side wall of the housing, the dust removal component comprising a spray section and an air distribution section, the air distribution section communicating with the air inlet and extending into the housing, the air distribution section having an air outlet slit facing the side wall of the housing, the air outlet slit spraying gas toward the inner wall of the housing;

[0005] The spray unit is located at the top of the housing. The spray unit includes a side sprayer and a top sprayer. The side sprayer sprays water onto the inner wall of the housing, and the top sprayer sprays water mist into the housing.

[0006] The gas distribution section includes a gas distribution pipe, one end of which is connected to the air inlet and extends into the housing. The end of the gas distribution pipe inside the housing is closed, and the air outlet is opened on the gas distribution pipe and arranged along the length of the gas distribution pipe.

[0007] The top spray component includes a top spray pipe with a top spray hole. A nozzle is installed inside the top spray hole and is arranged downwards to spray water mist into the housing.

[0008] The side spray component includes a side spray pipe with a water outlet slit. The water outlet slit faces the side wall of the housing, and the water sprayed from the water outlet slit flows along the side wall to form a water film on the side wall.

[0009] The bottom of the housing is provided with a collection port, which is connected to the inside of the housing, and the bottom of the housing is inclined toward the collection port.

[0010] The bottom of the housing is provided with a double layer, the collection port is connected to the double layer, one side of the double layer is open, a collection hopper is inserted into the opening, and the collection hopper is placed below the collection port.

[0011] Compared to existing technologies, this invention features a long and narrow air outlet. When hot air circulates, the pressurized gas has a certain flow velocity. This high-velocity hot air is blown through the narrow outlet towards the inner wall of the housing. A water film forms on the inner wall of the housing through the spray unit. When the hot air comes into contact with the water film, dust particles in the hot air are trapped within it and converge towards the bottom of the housing, achieving purification. The side spray units form a water film on the inner wall of the housing, and the top spray unit forms a water mist wall within the housing area. Therefore, when the airflow exits from the outlet, in addition to being purified by the water film on the side walls, any remaining dust particles can be further purified by the water mist wall. This eliminates the need for repeated airflow circulation within the housing, resulting in higher dust removal efficiency and better purification. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the water film dust collector of this utility model;

[0013] Figure 2 This is a schematic cross-sectional view of the internal structure of the water film dust collector of this utility model;

[0014] In the diagram: 1. Shell; 11. Air inlet; 12. Air outlet; 13. Interlayer; 2. Dust removal assembly; 21. Air distribution section; 211. Air distribution pipe; 212. Air outlet slit; 22. Spray section; 221. Top spray pipe; 222. Top spray hole; 223. Side spray pipe; 224. Water outlet slit; 225. Main water supply pipe; 3. Collection port; 4. Collection hopper. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0016] Reference Figure 1-2A hot air circulating water film dust collector includes a housing 1, within which a dust removal component 2 is installed. An air inlet 11 and an air outlet 12 are located on the side wall of the housing 1. The dust removal component 2 includes a spray section 22 and a gas distribution section 21. The gas distribution section 21 communicates with the air inlet 11 and extends into the housing 1. An air outlet slit 212 is formed on the side wall of the housing 1, spraying gas through the slit 212. The air outlet slit 212 is elongated and narrow. When hot air circulates, the pressurized gas has a certain flow velocity. When the hot air with a certain flow velocity is blown from the elongated air outlet slit 212 onto the inner wall of the housing 1, a water film is formed on the inner wall of the housing 1 by the spray section 22. When the hot air comes into contact with the water film, the dust particles in the hot air are retained in the water film and converge towards the bottom of the housing 1, thus achieving purification.

[0017] In this application, the spray section 22 is located on the top of the housing 1. The spray section 22 includes a side spray member and a top spray member. The side spray member sprays water onto the inner wall of the housing 1, and the top spray member sprays water mist into the housing 1. The side spray member forms a water film on the inner wall of the housing 1, and the top spray member forms a water mist wall in the area of ​​the housing 1. Therefore, when the airflow flows out from the air outlet 212, in addition to being purified by the water film on the side wall, the residual dust particles can also be purified again by the water mist wall, resulting in a better purification effect.

[0018] In this embodiment, the air distribution section 21 includes an air distribution pipe 211. One end of the air distribution pipe 211 is connected to the air inlet 11 and extends into the housing 1. The end of the air distribution pipe 211 inside the housing 1 is closed. An air outlet slit 212 is formed on the air distribution pipe 211 and is arranged along the length of the air distribution pipe 211. The air distribution pipe 211 can be a variable diameter pipe, so that the air distribution pipe 211 gradually narrows from the air inlet 11 into the housing 1, so as to further accelerate the flow rate of hot air flowing out of the air outlet slit 212, so that it can contact the housing 1 more fully, so as to effectively remove dust.

[0019] In this embodiment, the top spray component includes a top spray pipe 221 with a top spray hole 222. A nozzle is installed inside the top spray hole 222, and the nozzle is arranged downwards to spray water mist into the housing 1. The side spray component includes a side spray pipe 223 with a water outlet slit 224 facing the side wall of the housing 1. The water sprayed from the water outlet slit 224 flows along the side wall and forms a water film on the side wall. The top spray pipe 221 and the side spray pipe 223 can be supplied with water by the main water supply pipe 225. Specifically, there are two side spray pipes 223, one on the top left side and one on the top right side of the housing 1, and the top spray pipe 221 is a single pipe. The two side spray pipes 223 and the top spray pipe 221 are connected to the main water supply pipe 225 through a four-way connector. An opening is made at the top of the side wall of the housing 1 for installing the four-way connector. Water is supplied to the three pipes through the main water supply pipe 225, so that the water supply pressure tends to be uniform.

[0020] The bottom of the shell 1 is provided with a collection port 3, which is connected to the inside of the shell 1. The bottom of the shell 1 is inclined towards the collection port 3. Water containing dust accumulates at the bottom of the shell 1, forming a mud-water mixture. The mud-water mixture is discharged through the collection port 3 and then treated. The recovered water can be returned to the main water supply pipe 225 to participate in dust removal again, thereby reducing water consumption.

[0021] In areas where pipe connections are inconvenient, the housing 1 can be configured with a double-layer structure, particularly the bottom layer forming a sandwich 13. The collection port 3 communicates with the sandwich 13, with an opening on one side. A collection hopper 4 is inserted into this opening, positioned below the collection port 3. Only periodic replacement and cleaning of the collection port 3 are needed to recover the mud-water mixture for filtration. This design is suitable for areas where laying sewer pipes is difficult, thus broadening its application range.

[0022] Compared to existing technologies, the exhaust slit 212 of this invention is elongated and narrow. When hot air circulates, the pressurized gas has a certain flow velocity. This high-velocity hot air is blown from the elongated exhaust slit 212 onto the inner wall of the housing 1. The spray unit 22 forms a water film on the inner wall of the housing 1. When the hot air comes into contact with the water film, dust particles in the hot air are trapped in the water film and converge towards the bottom of the housing 1, achieving purification. The side spray unit forms a water film on the inner wall of the housing 1, and the top spray unit forms a water mist wall within the area of ​​the housing 1. Therefore, when the airflow flows out from the exhaust slit 212, in addition to being purified by the water film on the side wall, any remaining dust particles can also be purified again by the water mist wall. This eliminates the need for repeated airflow circulation within the housing 1, resulting in higher dust removal efficiency and better purification.

[0023] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A hot air circulating water film dust collector, comprising a housing, wherein a dust collection assembly is disposed within the housing, and an air inlet and an air outlet are provided on the side wall of the housing, characterized in that: The dust removal assembly includes a spray section and a gas distribution section. The gas distribution section is connected to the air inlet and extends into the housing. The gas distribution section has an air outlet slit facing the side wall of the housing, and the air outlet slit sprays gas into the inner wall of the housing. The spray unit is located at the top of the housing. The spray unit includes a side sprayer and a top sprayer. The side sprayer sprays water onto the inner wall of the housing, and the top sprayer sprays water mist into the housing.

2. The hot air circulating water film dust collector according to claim 1, characterized in that: The gas distribution section includes a gas distribution pipe, one end of which is connected to the air inlet and extends into the housing. The end of the gas distribution pipe inside the housing is closed, and the air outlet is opened on the gas distribution pipe and arranged along the length of the gas distribution pipe.

3. A hot air circulating water film dust collector according to claim 2, characterized in that: The top spray component includes a top spray pipe with a top spray hole. A nozzle is installed inside the top spray hole and is arranged downwards to spray water mist into the housing.

4. A hot air circulating water film dust collector according to claim 3, characterized in that: The side spray component includes a side spray pipe with a water outlet slit. The water outlet slit faces the side wall of the housing, and the water sprayed from the water outlet slit flows along the side wall to form a water film on the side wall.

5. A hot air circulating water film dust collector according to claim 1, characterized in that: The bottom of the housing is provided with a collection port, which is connected to the inside of the housing, and the bottom of the housing is inclined toward the collection port.

6. A hot air circulating water film dust collector according to claim 5, characterized in that: The bottom of the housing is provided with a double layer, the collection port is connected to the double layer, one side of the double layer is open, a collection hopper is inserted into the opening, and the collection hopper is placed below the collection port.

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