A waste gas purification and collection device for a production plant

Abstract

The utility model provides a kind of waste gas purification collection device of production workshop, including purification tank, the top and bottom of purification tank are all fixedly connected with conical cover, and the tapering end of two described conical cover is all set in the direction of the axial direction of the away from purification tank, purification assembly is provided on the purification tank, the outer wall of the purification tank is fixedly connected with three support legs, the outer wall of the bottom conical cover of the purification tank is fixedly connected with waste gas feeding pipe being connected with its inner cavity, one-way valve is fixedly installed on the waste gas feeding pipe, the side of the purification tank is provided with collection tank, gas collecting pipe is installed between the top gas outlet of the conical cover of collection tank and the purification tank. Waste gas is scattered by diffusion fan blade, and the extension path design of helical flow lag pipe is matched, the problem that waste gas is rapidly rising in dense bubble in traditional device, short contact time is improved, the contact area and reaction length of waste gas and purification liquid are increased, and the removal rate of target pollutant is improved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically a waste gas purification and collection device for a production workshop. Background Technology

[0002] During industrial production, workshops generate large amounts of waste gas containing harmful components. If this waste gas is directly released into the air, it will cause serious environmental pollution and harm human health. Sodium hypochlorite, as a commonly used disinfectant and oxidant, has strong oxidizing properties and can chemically react with various harmful components in the waste gas, thereby achieving the purpose of purifying the waste gas. Existing waste gas purification and collection devices in production workshops use inlet pipes laid at various pollution points in the workshop to centrally transport the collected mixed waste gas to the purification tank. The outlet end of the inlet pipe extends directly to the lower middle area of ​​the purification tank. When the waste gas is pressurized and transported to the outlet through the pipe, it will directly rush into the sodium hypochlorite solution in the tank in the form of a high-speed airflow. After entering the solution, the waste gas does not form an effective diffusion or retention state. The waste gas will quickly rise from the solution in the form of dense bubbles. This rapid upward movement results in a short actual contact time between the waste gas and the sodium hypochlorite solution, which fails to react fully, resulting in a low removal rate of target pollutants in the waste gas. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a waste gas purification and collection device for production workshops to solve the problems mentioned in the background technology. This utility model has a novel structure. By using diffuser fan blades to disperse the waste gas, and with the extended path design of the spiral stagnant tube, it improves the problem of waste gas rising rapidly as dense bubbles and short contact time in traditional devices, increases the contact area and reaction time between waste gas and purification liquid, and improves the removal rate of target pollutants.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a waste gas purification and collection device for a production workshop, comprising a purification tank, wherein a conical hood is fixedly connected to the top and bottom of the purification tank, and the tapered ends of the two conical hoods are arranged in a direction away from the axial direction of the purification tank; a purification component is provided on the purification tank; three support legs are fixedly connected to the outer wall of the purification tank, and each support leg is arranged downward along the axial direction; a waste gas feeding pipe communicating with the inner cavity of the conical hood at the bottom of the purification tank is fixedly connected to the outer wall of the conical hood; a one-way valve is fixedly installed on the waste gas feeding pipe; a collection tank is provided on one side of the purification tank; and a gas collecting pipe is installed between the collection tank and the gas outlet at the top of the conical hood above the purification tank.

[0005] Furthermore, a first pump body is fixedly installed on the top of the collection tank, the air outlet of the first pump body is connected to the air inlet of the collection tank, and the air inlet of the first pump body is connected to one end of the air collection pipe.

[0006] Furthermore, a second pump body is provided on one side of the purification tank, and a first delivery pipe is fixedly connected to the inlet of the second pump body. The other end of the first delivery pipe is connected to the connection port at the bottom of the conical cover below the purification tank.

[0007] Furthermore, the outlet of the second pump body is fixedly connected to a second delivery pipe, and two delivery heads connected to the second delivery pipe are fixedly connected to the side of the second delivery pipe near the purification tank.

[0008] Furthermore, the purification assembly includes a motor fixedly installed at the bottom of the conical cover below the purification tank. The output shaft of the motor is fixedly connected to a rotating rod that extends through the conical cover below the purification tank. A diffuser fan blade is fixedly connected to the top of the rotating rod, and the diffuser fan blade is located on the upper side of the connection between the purification tank and the conical cover below it.

[0009] Furthermore, the inner wall of the purification tank is fixedly connected with a lower fixed plate and an upper fixed plate, the lower fixed plate being located above the diffuser blades, and the lower fixed plate and the upper fixed plate being fixedly connected with multiple spiral flow tubes.

[0010] Furthermore, a groove is provided on the upper side of the upper fixed plate, and a first connecting pipe is fixedly connected to the inner wall of the groove and communicates with it. The first connecting pipe is connected to one of the conveying heads. A liquid storage tank is fixedly connected to the bottom of the lower fixed plate, and multiple nozzles are fixedly connected to the periphery of the liquid storage tank. A second connecting pipe is fixedly connected to the outer wall of the liquid storage tank and communicates with it. The second connecting pipe is connected to another conveying head.

[0011] Furthermore, multiple through holes are provided on one side of both the lower and upper fixed plates, and an upper connector and a lower connector are fixedly connected to the upper and lower ends of the spiral flow-retardant tube, respectively. The upper connector and the lower connector are respectively installed in the through holes of the upper and lower fixed plates.

[0012] The beneficial effects of this utility model are:

[0013] 1. The exhaust gas purification and collection device in this production workshop disperses the exhaust gas through diffuser blades. Combined with the extended path design of the spiral stagnant tube, it improves the problem of exhaust gas rising rapidly as dense bubbles and short contact time in traditional devices. It increases the contact area and reaction time between exhaust gas and purification liquid, thereby improving the removal rate of target pollutants.

[0014] 2. The waste gas purification and collection device in this production workshop adopts a bottom nozzle for preliminary reaction and a spiral tube for deep reaction, so that the purification liquid and waste gas form a stepped contact, which enhances the fullness and targeting of the reaction. The concave end of the cone is set in the opposite direction to guide the airflow to flow in a concentrated manner. The purified gas is accurately sent into the collection tank through the first pump body, which facilitates subsequent recycling or discharge. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a waste gas purification and collection device for a production workshop according to the present invention.

[0016] Figure 2 This is a side sectional view of the purification tank of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the spiral flow-retarding tube of this utility model located between the lower fixed plate and the upper fixed plate;

[0018] Figure 4 This is a schematic diagram of the spiral flow stagnant tube of this utility model.

[0019] In the diagram: 1. Purification tank; 2. Conical hood; 3. Purification assembly; 301. Motor; 302. Rotating rod; 303. Diffuser blade; 304. Lower fixed plate; 305. Upper fixed plate; 306. Spiral flow control tube; 307. Groove; 308. First connecting pipe; 309. Liquid storage tank; 310. Second connecting pipe; 311. Nozzle; 312. Through hole; 313. Upper connector; 314. Lower connector; 4. Support leg; 5. Waste gas feeding pipe; 6. One-way valve; 7. Collection tank; 8. First pump body; 9. Gas collection pipe; 10. Second pump body; 11. First conveying pipe; 12. Second conveying pipe; 13. Conveying head. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please refer to Figures 1 to 4 This utility model provides a technical solution: a waste gas purification and collection device for a production workshop, including a purification tank 1. The top and bottom of the purification tank 1 are fixedly connected to conical covers 2, and the tapered ends of the two conical covers 2 are arranged in a direction away from the axial direction of the purification tank 1. A purification component 3 is provided on the purification tank 1. Three support legs 4 are fixedly connected to the outer wall of the purification tank 1, and each support leg 4 is arranged downward along the axial direction. A waste gas feeding pipe 5 communicating with the inner cavity of the conical cover 2 at the bottom of the purification tank 1 is fixedly connected to the outer wall of the conical cover 2. A one-way valve 6 is fixedly installed on the waste gas feeding pipe 5. A collection tank 7 is provided on one side of the purification tank 1. A gas collecting pipe 9 is installed between the collection tank 7 and the gas outlet at the top of the conical cover 2 above the purification tank 1.

[0022] In this embodiment, a first pump body 8 is fixedly installed on the top of the collection tank 7. The air outlet of the first pump body 8 is connected to the air inlet of the collection tank 7. The air inlet of the first pump body 8 is connected to one end of the gas collection pipe 9. A second pump body 10 is provided on one side of the purification tank 1. A first delivery pipe 11 is fixedly connected to the liquid inlet of the second pump body 10. The other end of the first delivery pipe 11 is connected to the connection port at the bottom of the conical cover 2 below the purification tank 1. A second delivery pipe 12 is fixedly connected to the liquid outlet of the second pump body 10. Two delivery heads 13 are fixedly connected to the side of the second delivery pipe 12 near the purification tank 1.

[0023] In this embodiment, the purification component 3 includes a motor 301 fixedly installed at the bottom of the conical cover 2 below the purification tank 1. The output shaft of the motor 301 is fixedly connected to a rotating rod 302 that extends into the conical cover 2 below the purification tank 1. A diffuser blade 303 is fixedly connected to the top of the rotating rod 302. The diffuser blade 303 is located above the connection between the purification tank 1 and the conical cover 2 below it. A lower fixed plate 304 and an upper fixed plate 305 are fixedly connected to the inner wall of the purification tank 1. The lower fixed plate 304 is located above the diffuser blade 303. Multiple spiral flow tubes 306 are fixedly connected to the lower fixed plate 304 and the upper fixed plate 305. A groove 307 is formed on the upper side of the upper fixed plate 305. The inner wall of the groove 307 is fixedly connected to a... The first connecting pipe 308 is connected to one of the conveying heads 13. The bottom of the lower fixed plate 304 is fixedly connected to a liquid storage tank 309. Multiple nozzles 311 are fixedly connected to the periphery of the liquid storage tank 309. The outer wall of the liquid storage tank 309 is fixedly connected to a second connecting pipe 310, which is connected to it. The second connecting pipe 310 is connected to another conveying head 13. Multiple through holes 312 are opened on one side of both the lower fixed plate 304 and the upper fixed plate 305. The upper and lower ends of the spiral flow tube 306 are respectively fixedly connected to an upper connecting head 313 and a lower connecting head 314. The upper connecting head 313 and the lower connecting head 314 are respectively installed in the through holes 312 of the upper fixed plate 305 and the lower fixed plate 304.

[0024] Specifically, driven by the motor 301, the rotating rod 302 drives the diffuser blades 303 to rotate at high speed, which disperses and initially diffuses the concentrated waste gas. The second pump body 10 draws the purification liquid (such as sodium hypochlorite solution) through the first conveying pipe 11 and delivers it in two directions through the second conveying pipe 12: one direction enters the storage tank 309 through the second connecting pipe 310 and is sprayed by multiple nozzles 311 to diffuse the waste gas downward, forming a preliminary contact reaction; the other direction is injected into the groove 307 of the upper fixed plate 305 through the first connecting pipe 308 and flows into multiple spiral stagnation pipes 306. The pre-treated waste gas enters the spiral stagnation pipes 306 through the through hole 312 of the lower fixed plate 304 and fully contacts the purification liquid in the pipe. The spiral structure prolongs the residence path and time of the waste gas in the purification liquid, which promotes the full reaction of pollutants with the purification liquid. The purified gas rises to the top conical cover 2 of the purification tank 1 and is sent to the collection tank 7 for collection through the gas collecting pipe 9 under the suction action of the first pump body 8.

[0025] When using the device, the exhaust gas generated in the production workshop is first transported to the conical hood 2 at the bottom of the purification tank 1 through the exhaust gas feed pipe 5. The one-way valve 6 ensures that the exhaust gas can only enter the device in one direction, avoiding backflow. After the exhaust gas enters the bottom conical hood 2, the motor 301 in the purification component 3 starts, and its output shaft drives the rotating rod 302 to rotate, which in turn causes the diffuser blades 303 fixed at the top of the rotating rod 302 to rotate at high speed, dispersing and initially diffusing the concentrated exhaust gas, laying the foundation for subsequent full purification. At the same time, the second pump body 10 starts working, drawing purification liquid from the connection port at the bottom of the conical hood 2 below the purification tank 1 through the first conveying pipe 11. The purification liquid is divided into two paths through the second conveying pipe 12: one path enters the storage tank 309 through the second connecting pipe 310, and multiple nozzles 311 around the storage tank 309 spray the purification liquid evenly onto the exhaust gas dispersed by the diffuser blades 303 below, so that the exhaust gas and purification liquid can have an initial contact reaction; the other path enters the storage tank 309 through the first connecting pipe 301. 8 is injected into the groove 307 of the upper fixed plate 305, and then flows into multiple spiral congestion pipes 306 fixedly connected between the lower fixed plate 304 and the upper fixed plate 305. The waste gas, which has been preliminarily treated by the bottom nozzle 311, flows upward and enters the spiral congestion pipe 306 through the through hole 312 of the lower fixed plate 304. Due to the special structure of the spiral congestion pipe 306, the waste gas is in full contact with the purification liquid in the pipe, which prolongs the residence path and time of the waste gas in the purification liquid, and promotes the pollutants in the waste gas to fully react with the purification liquid, so as to achieve deep purification. The purified gas continues to flow upward, passes through the through hole 312 of the upper fixed plate 305 to the top area of ​​the purification tank 1, and then enters the top conical hood 2. At this time, the first pump body 8 at the top of the collection tank 7 is started, and the purified gas at the outlet of the top conical hood 2 is drawn to the inlet of the first pump body 8 through the gas collecting pipe 9, and then sent to the inlet of the collection tank 7 through the outlet of the first pump body 8, and finally the collection of the purified gas in the collection tank 7 is completed.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An exhaust gas purification collection device for a production plant, comprising a purification tank (1), characterized in that: The top and bottom of the purification tank (1) are fixedly connected with conical covers (2), and the tapered ends of the two conical covers (2) are arranged in a direction away from the axial direction of the purification tank (1). The purification tank (1) is provided with a purification component (3). The outer wall of the purification tank (1) is fixedly connected with three support legs (4), and each support leg (4) is arranged downward along the axial direction. The outer wall of the conical cover (2) at the bottom of the purification tank (1) is fixedly connected with a waste gas feeding pipe (5) that communicates with its inner cavity. A one-way valve (6) is fixedly installed on the waste gas feeding pipe (5). A collection tank (7) is provided on one side of the purification tank (1). A gas collecting pipe (9) is installed between the collection tank (7) and the top gas outlet of the conical cover (2) above the purification tank (1).

2. A waste gas purification collection device for a production plant according to claim 1, characterized in that: The top of the collection tank (7) is fixedly installed with a first pump body (8), the air outlet of the first pump body (8) is connected to the air inlet of the collection tank (7), and the air inlet of the first pump body (8) is connected to one end of the gas collection pipe (9).

3. The waste gas purification and collection device for a production workshop according to claim 2, characterized in that: A second pump body (10) is provided on one side of the purification tank (1). The inlet of the second pump body (10) is fixedly connected to a first delivery pipe (11). The other end of the first delivery pipe (11) is connected to the connection port at the bottom of the conical cover (2) below the purification tank (1).

4. A waste air purification and collection device for a production plant according to claim 3, characterized in that: The outlet of the second pump body (10) is fixedly connected to a second delivery pipe (12), and the second delivery pipe (12) is fixedly connected to two delivery heads (13) on the side near the purification tank (1).

5. The waste gas purification and collection device for a production workshop according to claim 4, characterized in that: The purification component (3) includes a motor (301) fixedly installed at the bottom of the conical cover (2) below the purification tank (1). The output shaft of the motor (301) is fixedly connected to a rotating rod (302) that extends into the conical cover (2) below the purification tank (1). A diffuser blade (303) is fixedly connected to the top of the rotating rod (302). The diffuser blade (303) is located on the upper side of the connection between the purification tank (1) and the conical cover (2) below it.

6. The waste gas purification and collection device for a production workshop according to claim 5, characterized in that: The inner wall of the purification tank (1) is fixedly connected to a lower fixed plate (304) and an upper fixed plate (305). The lower fixed plate (304) is located above the diffuser fan blade (303). The lower fixed plate (304) and the upper fixed plate (305) are fixedly connected to a plurality of spiral stagnation tubes (306).

7. The waste gas purification and collection device for a production workshop according to claim 6, characterized in that: The upper fixed plate (305) has a groove (307) on its upper side. The inner wall of the groove (307) is fixedly connected to a first connecting pipe (308) that communicates with it. The first connecting pipe (308) is connected to one of the conveying heads (13). The bottom of the lower fixed plate (304) is fixedly connected to a liquid storage tank (309). Multiple nozzles (311) are fixedly connected to the periphery of the liquid storage tank (309). The outer wall of the liquid storage tank (309) is fixedly connected to a second connecting pipe (310) that communicates with it. The second connecting pipe (310) is connected to another conveying head (13).

8. The waste gas purification and collection device for a production workshop according to claim 7, characterized in that: Multiple through holes (312) are provided on one side of both the lower fixed plate (304) and the upper fixed plate (305). The upper and lower ends of the spiral flow tube (306) are respectively fixedly connected to the upper connector (313) and the lower connector (314). The upper connector (313) and the lower connector (314) are respectively installed in the through holes (312) of the upper fixed plate (305) and the lower fixed plate (304).

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