Waste gas collecting hood for waste gas treatment

Abstract

The utility model relates to the technical field of waste gas treatment, and provides a waste gas collecting hood for waste gas treatment, which comprises a hood body and a gas suction pipe connected with the hood body, and further comprises a protective net and a cleaning shaft, the protective net is detachably connected inside the hood body and used for preliminarily filtering waste gas, and the cleaning shaft is rotatably arranged inside the hood body and used for cleaning the waste gas. The cleaning shaft penetrates through the protective net, the outer portion of the cleaning shaft is connected with a cleaning plate through a compression spring, the cleaning plate is connected with a first brush, the compression spring can compress the first brush on the inner wall of the cover body so as to clean the inner wall of the cover body, the outer portion of the cleaning shaft is fixedly connected with two elastic rods, and the two elastic rods are located on the two sides of the protective net. The side, close to the protective net, of the elastic rod is connected with a second brush used for cleaning the protective net. By means of the technical scheme, the problem that in the prior art, dust and impurities are accumulated on the inner wall of the gas collecting hood to cause corrosion damage of the gas collecting hood is solved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically, to a waste gas collection hood used in waste gas treatment. Background Technology

[0002] Industrial production, especially chemical production, generates a large amount of waste gas, including dust and harmful gases. Direct emission into the outside world will damage the environment. Purification equipment is needed to treat the waste gas, and the waste gas is drawn into the purification equipment through a waste gas collection hood.

[0003] The gas collection hood faces the exhaust gas source, directly drawing the exhaust gas into the purification equipment. During the long-term collection process, dust and impurities in the exhaust gas will adhere to the inner surface of the gas collection hood. The accumulation of dirt inside the gas collection hood makes the inner wall rough, which makes it easier for subsequent dust to adhere, reducing the collection efficiency of the gas collection hood, and easily causing corrosion damage to the gas collection hood, shortening its service life. Utility Model Content

[0004] This utility model proposes a waste gas collection hood for waste gas treatment, which solves the problem of dust and impurities accumulating on the inner wall of the collection hood and causing corrosion and damage in the prior art.

[0005] The technical solution of this utility model is as follows:

[0006] An exhaust gas collection hood for waste gas treatment includes a hood body and an intake pipe connected thereto, and further includes:

[0007] A protective net, which is detachably connected to the inside of the cover, is used for preliminary filtration of exhaust gas;

[0008] A cleaning shaft is rotatably disposed inside the cover. The cleaning shaft passes through the protective net. A cleaning plate is connected to the outside of the cleaning shaft by a compression spring. A brush is connected to the cleaning plate. The compression spring can press the brush against the inner wall of the cover to clean the inner wall of the cover.

[0009] To clean the surface of the protective net, two elastic rods are fixedly connected to the outside of the cleaning shaft. The two elastic rods are located on both sides of the protective net, and a brush for cleaning the protective net is connected to the side of the elastic rod closest to the protective net.

[0010] To reduce the fall of cleaned impurities, a blowing assembly is also included. This blowing assembly assists in blowing the cleaned impurities towards the suction pipe. The blowing assembly includes:

[0011] An air blowing pipe is provided at the bottom of the cover, and multiple air blowing nozzles are axially connected to the air blowing pipe, with the air blowing nozzles facing the air intake pipe.

[0012] To ensure effective cleaning of the cover, the inclination angles of the cleaning plate and the inner wall of the cover are matched, and the extension and retraction direction of the compression spring is perpendicular to the cover.

[0013] To improve the stability of the sweeping shaft rotation, the elastic rod and the sweeping plate are symmetrically arranged outside the sweeping shaft.

[0014] To facilitate easy assembly and disassembly of the protective netting, the protective netting is detachably connected to the inside of the cover via mounting components, which include:

[0015] An insert rod is slidably mounted on the cover, and a locking spring is connected to the cover. The protective net has an insertion hole, and the insert rod can be inserted into the insertion hole under the action of the locking spring to fix the protective net.

[0016] The working principle and beneficial effects of this utility model are as follows:

[0017] 1. In this utility model, a protective net is used to block large impurities, preventing them from entering the waste gas purification equipment or pipeline and causing blockage or damage. The cleaning shaft drives the brush to rotate, cleaning the inner wall of the cover and the surface of the protective net, reducing the residual adhesion of dust and impurities on the cover and the protective net, thereby reducing corrosion and damage to the cover and the protective net, and ensuring the normal passage of waste gas.

[0018] 2. In this utility model, the elasticity of the elastic rod and the elasticity of the compression spring can adapt to the shape of the cover. When the elastic rod and the compression spring are in their longest state, the end of the elastic rod and the brush on the cleaning plate can contact the edge of the inner wall of the cover. At the same time, the brush has a certain elasticity, so as to clean the inner wall of the cover and the protective net more thoroughly and reduce the dead corners of hygiene.

[0019] 3. In this utility model, air is blown into the suction pipe through the air blowing pipe and air blowing nozzle. After cleaning the impurities on the cover and protective net, the impurities are then allowed to enter the interior of the waste gas purification equipment for treatment through the suction pipe under the combined action of the air blowing nozzle and the suction of the suction pipe, thereby reducing the fall of the cleaned impurities and preventing secondary pollution.

[0020] 4. In this utility model, the restriction on the protective net can be released by pulling the plug out from the inside of the plug hole, so that the protective net, cleaning shaft and brush one can be disassembled from the inside of the cover, and the protective net, brush one and brush two can be further cleaned or the brushes can be replaced to ensure the cleaning effect on the cover and the protective net.

[0021] 5. Therefore, compared with the existing exhaust gas collection hoods, this utility model uses a protective net to block large impurities. The cleaning shaft drives the elastic rod and brush two to rotate and clean the protective net. Simultaneously, the cleaning shaft drives the cleaning plate and brush one to rotate and clean the inner wall of the hood. The elasticity of the elastic rod and the spring ensures that brush two makes full contact with the surface of the protective net, and brush one makes full contact with the inner wall of the hood. This adapts to the shape changes of the hood, providing a more comprehensive cleaning of the hood and protective net. Furthermore, the insertion rod and locking spring allow for easy disassembly and assembly of the protective net, enabling timely and thorough cleaning or replacement of the protective net, brush one, and brush two, thus ensuring the service life of the hood. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0024] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0025] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the motor, compression spring, cleaning plate, and brush of this utility model.

[0027] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0028] In the picture:

[0029] 1. Cover; 2. Suction pipe; 3. Protective net; 4. Sweeping shaft; 5. Mounting bracket; 6. Motor; 7. Compression spring; 8. Sweeping plate; 9. Brush one; 10. Support rod; 11. Elastic rod; 12. Brush two;

[0030] 101. Insert rod; 102. Locking spring; 103. Pull plate;

[0031] 201. Air blowing pipe; 202. Air blowing nozzle. Detailed Implementation

[0032] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0033] like Figures 1 to 5 As shown, this embodiment proposes a waste gas collection hood for waste gas treatment, including a hood body 1 and a suction pipe 2 connected thereto. The suction pipe 2 is connected to a waste gas purification device. Under the action of the suction fan in the waste gas purification device, the waste gas is forced to enter the waste gas purification device for purification through the hood body 1 and the suction pipe 2. It also includes a protective net 3 and a cleaning shaft 4. Compared with the waste gas collection hoods in the prior art, this utility model uses the protective net 3 to block large impurities, and the cleaning shaft 4 drives the elastic rod 11 and the brush 12 to rotate and clean the protective net 3. At the same time, the cleaning shaft 4 drives the elastic rod 11 and the brush 12 to rotate and clean the protective net 3. The cleaning plate 8 and brush 9 rotate to clean the inner wall of the cover 1. Through the elasticity of the elastic rod 11 and the elasticity of the compression spring 7, the brush 12 makes full contact with the surface of the protective net 3, and the brush 9 makes full contact with the inner wall of the cover 1. Adapting to the shape changes of the cover 1, the cover 1 and the protective net 3 are cleaned more thoroughly. At the same time, through the cooperation of the insertion rod 101 and the locking spring 102, the protective net 3 and other items can be easily disassembled and assembled. The protective net 3, brush 9 and brush 12 can be cleaned or replaced in a timely and thorough manner, ensuring the service life of the cover 1.

[0034] The protective net 3 is detachably connected to the inside of the cover 1 for preliminary filtration of exhaust gas. To facilitate easy installation and removal of the protective net 3, it is detachably connected to the inside of the cover 1 via an installation component. This component includes a rod 101, which is slidably mounted on the cover 1. A locking spring 102 is connected to the cover 1. The protective net 3 has an insertion hole. The rod 101 can be inserted into the insertion hole under the action of the locking spring 102 to fix the protective net 3. A pull plate 103 is fixedly connected to the end of the rod 101. The pull plate 103 is connected to the outer wall of the cover 1 via the locking spring 102, thus securing the protective net 3. Inside the cover 1, the side wall of the protective net 3 is tightly attached to the inner wall of the cover 1. The cover 1 is pyramidal in shape. The protective net 3 is installed inside the cover 1 to limit its position. The position of the insertion hole corresponds to the position of the insertion rod 101. Under the action of the locking spring 102, the insertion rod 101 is inserted into the insertion hole. The insertion rod 101 limits the protective net 3, keeping it stable inside the cover 1. When it is necessary to remove the protective net 3, pull the pull plate 103 to pull the insertion rod 101 out from the insertion hole, releasing the limit on the protective net 3. The protective net 3 can then be taken out from inside the cover 1 for cleaning or replacement.

[0035] A cleaning shaft 4 is rotatably mounted inside the cover 1, passing through a protective mesh 3. A mounting bracket 5 is detachably connected to the inside of the cover 1 via bolts, and a motor 6 is mounted on the mounting bracket 5. The cleaning shaft 4 is fixedly connected to the output end of the motor 6. A cleaning plate 8 is connected to the outside of the cleaning shaft 4 via a compression spring 7. A brush 9 is attached to the cleaning plate 8. The compression spring 7 presses the brush 9 against the inner wall of the cover 1 to clean the inner wall. The inclination angle of the cleaning plate 8 and the inner wall of the cover 1 is adapted, and the extension and retraction direction of the compression spring 7 is perpendicular to the cover 1. A support rod 10 is fixedly connected to the outside of the cleaning shaft 4, and the cleaning plate 8 is connected to the support rod 10 via the compression spring 7. The motor 6 drives the cleaning shaft 4 to rotate, thereby causing the cleaning plate 8 to press the brush 9 against the inner wall of the cover 1 under the action of the support rod 10 and the compression spring 7. The cover 1 is pyramidal in shape. As the cleaning shaft 4 drives the cleaning plate 8 to rotate, the distance between the inner wall of the cover 1 and the cleaning shaft 4 changes. Under the elastic action of the compression spring 7 and the brush 9, the brush 9 is kept in close contact with the inner wall of the cover 1. There are two cleaning plates 8, located on the upper and lower sides of the protective net 3, which clean the cover 1 on the upper side and the cover 1 on the lower side of the protective net 3. When the cleaning plate 8 rotates to the edge of the cover 1, the distance with the cleaning shaft 4 is the farthest. At this time, the brush 9 contacts the edge of the cover 1. As the cleaning shaft 4 continues to rotate, the cover 1 exerts pressure on the brush 9 and the cleaning plate 8, which compresses the compression spring 7. At the same time, under the action of the compression spring 7, the pressure of the brush 9 on the cover 1 is increased, improving the cleaning effect and better cleaning the dirt on the inner wall of the cover 1.

[0036] To clean the surface of the protective net 3, two elastic rods 11 are fixedly connected to the outside of the cleaning shaft 4. The two elastic rods 11 are located on both sides of the protective net 3. A second brush 12 for cleaning the protective net 3 is connected to the side of the elastic rod 11 closest to the protective net 3. The elastic rods 11 and the cleaning plate 8 are symmetrically arranged outside the cleaning shaft 4. The elastic rods 11 are set horizontally. Driven by the cleaning shaft 4, the elastic rods 11 and the second brush 12 rotate. The length of the elastic rod 11 is adapted to the distance between the edge of the cleaning shaft 4 and the corresponding height of the cover 1. As the elastic rod 11 rotates to the area outside the edge of the cover 1, the elastic rod 11 bends. The cleaning range of the second brush 12 is adapted to the area of ​​the protective net 3, so that the upper and lower surfaces of the protective net 3 can be cleaned more thoroughly.

[0037] To reduce the fall of cleaned impurities, a blowing assembly is also included. The blowing assembly is used to assist in blowing the cleaned impurities towards the suction pipe 2. The blowing assembly includes a blowing pipe 201, which is located at the bottom of the cover 1. The blowing pipe 201 is connected to an external air supply device, such as a fan. Multiple blowing nozzles 202 are axially connected to the blowing pipe 201, which faces the suction pipe 2. Air is supplied to the inside of the blowing pipe 201 through the external air supply device, and the blowing nozzles 202 blow air towards the suction pipe 2, forming a high-speed airflow at the inlet of the cover 1. This reduces the pressure at the inlet of the cover 1. Combined with the suction of the suction pipe 2, it can assist the exhaust gas to enter the interior of the exhaust gas purification equipment while blowing the cleaned dirt towards the suction pipe 2 for treatment together with the exhaust gas, reducing the fall of dirt and secondary pollution. In addition, the blowing nozzles 202 sweep the surface of the protective net 3, reducing the residue of dirt on the protective net 3, and assisting the impurities to enter the exhaust gas purification equipment through the protective net 3.

[0038] The working principle or usage procedure of the exhaust gas collection hood used in waste gas treatment is as follows:

[0039] The hood 1 is installed at the source of the exhaust gas that needs to be treated. The exhaust gas is drawn into the hood 1 for purification by the exhaust gas purification equipment. During the process of exhaust gas intake, large impurities in the exhaust gas are blocked by the protective net 3.

[0040] Motor 6 drives sweeping shaft 4 to rotate, sweeping shaft 4 drives elastic rod 11, support rod 10 and sweeping plate 8 to rotate, thereby driving brush 1 9 to sweep the inner wall of cover 1, while brush 2 12 sweeps both sides of protective net 3, reducing the residue and accumulation of dirt on the inner wall of cover 1 and protective net 3, and preventing the protective net 3 from clogging. Under the action of compression spring 7, brush 1 9 is pressed tightly against the inner wall of cover 1.

[0041] An external air supply device supplies air to the air blowing pipe 201 and the air blowing nozzle 202. Air is blown into the air intake pipe 2 through the air blowing nozzle 202, which helps the exhaust gas enter the interior of the exhaust gas purification equipment. At the same time, it sends the cleaned-up impurities into the exhaust gas purification equipment for treatment, reducing the falling of impurities.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An exhaust gas collecting hood for exhaust gas treatment, comprising a hood body (1) and a suction pipe (2) connected thereto, characterized in that, Also include: The protective net (3) is detachably connected in the inside of the cover body (1); The cleaning shaft (4) is rotatably arranged in the inside of the cover body (1), the cleaning shaft (4) passes through the protective net (3), the outside of the cleaning shaft (4) is connected with the cleaning plate (8) through the compression spring (7), the cleaning plate (8) is connected with the brush one (9); Blowing assembly for assisting blowing the impurities cleaned to the air suction pipe (2).

2. The exhaust gas hood for exhaust gas abatement according to claim 1, characterized in that The outside of the cleaning shaft (4) is fixedly connected with two elastic rods (11), two elastic rods (11) are located on both sides of the protective net (3), the side of the elastic rod (11) close to the protective net (3) is connected with the brush two (12) for cleaning the protective net (3).

3. The exhaust gas hood for exhaust gas abatement according to claim 2, characterized in that The blowing assembly comprises: The blowing pipe (201) is arranged at the bottom of the cover body (1), the blowing pipe (201) is axially communicated with a plurality of blowing nozzles (202), and the blowing nozzles (202) are directed to the air suction pipe (2).

4. The exhaust gas hood for exhaust gas abatement according to claim 3, characterized in that The inclination angle of the cleaning plate (8) and the inner wall of the cover body (1) is adapted, the extension direction of the compression spring (7) is perpendicular to the cover body (1).

5. The exhaust gas hood for exhaust gas abatement according to claim 4, characterized in that The elastic rod (11) and the cleaning plate (8) are symmetrically arranged on the outside of the cleaning shaft (4).

6. The exhaust gas hood for exhaust gas abatement according to claim 5, characterized in that The protective net (3) is detachably connected in the inside of the cover body (1) through the mounting piece.

7. The exhaust gas hood for exhaust gas abatement according to claim 6, characterized in that The mounting piece comprises: The plug rod (101) is slidably mounted on the cover body (1), the cover body (1) is connected with the locking spring (102), the protective net (3) is provided with a plug hole, and the plug rod (101) can be inserted into the inside of the plug hole under the driving of the locking spring (102) to fix the protective net (3).

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