Efficient waste gas purification device
By designing a high-efficiency exhaust gas purification device containing multiple screen plates, cyclone plates, spray pipes and defogging devices, combined with the use of activated carbon, the problems of complex process routes and numerous equipment in the prior art are solved, and efficient purification of exhaust gas containing both acidic oxides and a small amount of organic pollutants is achieved.
Patent Information
- Application Number
- CN202421781598.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-26
AI Technical Summary
When the prior art treats waste gas that contains both inorganic pollutants such as acid oxides and a small amount of organic pollutants, the process route is complex and there are many equipment, making it difficult to achieve efficient purification.
An efficient exhaust gas purification device is designed, including a purification tower and a bottom frame. The purification tower is equipped with multiple screen plates, cyclone plates, spray pipes and defogging devices. Through multiple purification and cyclones, combined with the use of activated carbon, the effective removal of inorganic and organic pollutants is achieved.
The device can efficiently remove inorganic and organic pollutants from the waste gas, with a simple purification process and wide adaptability, which significantly improves the efficiency of exhaust gas purification.
Smart Images
Figure CN222918438U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste gas treatment, in particular to an efficient waste gas purification device. Background Art
[0002] Waste gas mainly refers to harmful gas waste generated by various forms of human activities such as industrial production, transportation, agriculture, and life. According to different sources and components, waste gas can be roughly divided into industrial waste gas, automobile exhaust gas, combustion waste gas, and domestic waste gas, etc. Different types of waste gas contain different types of pollutants, and different purification methods are adopted.
[0003] Waste gas can be divided into particulate pollutant-containing waste gas and pure gaseous waste gas according to the types of pollutants it contains. For pure gaseous waste gas without particulate matter, there are inorganic pollutant waste gas, organic pollutant waste gas, and inorganic-organic mixed pollutant waste gas. Inorganic waste gas is mainly generated in industries and fields such as electroplating production, surface treatment, single crystal pickling, semiconductor cleaning, and electronics manufacturing. These inorganic waste gases often contain acidic substances such as sulfur oxides, nitrogen oxides, and hydrogen halides, and are suitable for purification treatment using a gas purification tower. In the industries of organic chemical raw material manufacturing, synthetic materials, pesticides, dyes, etc., the waste gas mainly contains organic substances such as benzene series, phenol, aldehyde, and alcohol.
[0004] For waste gas containing both inorganic pollutants such as acidic oxides and a small amount of organic pollutants, the prior art uses a continuous treatment method for purification, and the organic and inorganic pollutants are removed successively in different devices. This treatment method has problems such as a complex process route and a large number of devices. Content of the Utility Model
[0005] Therefore, the utility model provides an efficient waste gas purification device to overcome the above problems existing in the prior art.
[0006] The technical solution of the utility model is as follows:
[0007] An efficient waste gas purification device, which comprises a purification tower and a chassis, and the purification tower is arranged above the chassis; the upper part of the purification tower is conical, the middle part is cylindrical, and the lower part is inverted conical. The purification tower is provided with an exhaust port at the top and a liquid discharge port at the bottom; on the cylindrical side of the purification tower, a waste gas inlet and a hot air inlet are provided from bottom to top. Inside the purification tower, a first sieve plate is arranged above the waste gas inlet. The first sieve plate is flat. Above the first sieve plate, a first swirl plate is arranged. Above the first swirl plate, a first spray pipe is arranged. The first spray pipe is connected with a plurality of spray heads for spraying liquid downward. Above the first spray pipe, a demister is arranged. The demister is conical with the tip facing upward. A plurality of connecting rods are arranged along the outer edge of the demister and connected to the inner wall of the purification tower body. Above the demister, a second sieve plate is arranged. The hot air inlet is located between the second sieve plate and the demister. Activated carbon is stacked above the second sieve plate.
[0008] Further, a third sieve plate is arranged between the first spray pipe and the first swirl plate. The third sieve plate is flat. Between the third sieve plate and the first swirl plate, a second spray pipe is arranged. The second spray pipe is connected with a plurality of spray heads for spraying liquid downward. The arrangement of the third sieve plate increases the contact area between the waste gas and the spray liquid, and improves the pollutant absorption rate. The second spray pipe is provided, and any one of them or both can be selected for use according to needs to meet the needs of removing pollutants with different components and contents.
[0009] Further, a second swirl plate is arranged between the second spray pipe and the first swirl plate. The direction of the swirl generated by the second swirl plate is opposite to the direction of the swirl generated by the first swirl plate. While the swirl plate guides the waste gas to rise, it generates a swirl, which is beneficial to the aggregation and sedimentation of tiny fog droplets in the air, and the sprayed liquid can contact the waste gas more fully. The secondary guidance changes the swirl direction of the waste gas, causing a certain degree of turbulence in the air flow and full collision and contact with the droplets in the reverse air flow, promoting the dissolution reaction of pollutants.
[0010] Further, the sieve holes on the first sieve plate are inclined holes that penetrate from top to bottom, and the inclination directions of adjacent two inclined holes are opposite. The inclined holes cause the waste gas flow to generate a rotating turbulent flow after passing through, increasing the chance of collision and reaction between pollutants in the waste gas and the liquid.
[0011] Further, the first spray pipe and the second spray pipe are respectively connected with a water pump. Valves are arranged on the pipelines connecting the first spray pipe, the second spray pipe and the water pump. After the water pump processes the liquid discharged from the liquid discharge port, it is recycled and pumped to the first spray pipe and the second spray pipe.
[0012] The working principle and beneficial effects of the present utility model are as follows:
[0013] The utility model provides a high-efficiency waste gas purification device. When in use, the waste gas enters the purification tower from the waste gas inlet, meets the liquid sprayed from the first spray pipe on the first sieve plate, and covers the particulate pollutants with droplets on the first sieve plate, and reacts chemically with the inorganic pollutants to remove them, completing a purification. The waste gas then continues to rise after swirl through the swirl plate, and further contacts and reacts at the swirl plate to complete further purification. After multiple purifications and swirls of the sieve plate and the swirl plate, the waste gas rises to the demister, which removes water mist in the waste gas and reduces its humidity. If necessary, clean hot air can be introduced to further reduce the humidity of the waste gas. The waste gas then rises through the second sieve plate and passes through the activated carbon, which removes organic pollutants in the waste gas and is discharged after the last purification. The utility model has a wide range of adaptability to the types of waste gas, and the purification process is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0015] Figure 1 It is a structural schematic diagram of the utility model;
[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;
[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model after cutting;
[0018] In the figure: 1, base frame; 2, purification tower; 21, first sieve plate; 22, first cyclone plate; 23, second cyclone plate; 24, second spray pipe; 25, third sieve plate; 26, first spray pipe; 27, demister; 28, second sieve plate; 3, exhaust port; 4, drain port; 5, exhaust gas inlet; 6, hot air inlet. DETAILED DESCRIPTION
[0019] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] Please refer to Figures 1 to 3As shown in the figure, this embodiment provides an efficient waste gas purification device, which includes a purification tower 2 and a chassis 1. The purification tower 2 is arranged above the chassis 1. The upper part of the purification tower 2 is conical, the middle part is cylindrical, and the lower part is inverted conical. The purification tower 2 is provided with an exhaust port 3 at the top and a liquid discharge port 4 at the bottom. The purification tower 2 is provided with a waste gas inlet 5 and a hot air inlet 6 on its cylindrical side from bottom to top.
[0021] Inside the purification tower 2, a first sieve plate 21 is arranged above the waste gas inlet 5. The first sieve plate 21 is flat. Above the first sieve plate 21, a first cyclone plate 22 is arranged. Above the first cyclone plate 22, a first spray pipe 26 is arranged. The first spray pipe 26 is connected with a plurality of spray heads to spray liquid downward. These liquids contain substances that react with the pollutants in the waste gas. Depending on the composition of the waste gas pollutants, different liquids are used. Above the first spray pipe 26, a demister 27 is arranged. The demister 27 is conical with the tip facing upward. A plurality of connecting rods are arranged on the outer edge of the demister 27 and connected to the inner wall of the purification tower body. Above the demister 27, a second sieve plate 28 is arranged. The above-mentioned hot air inlet 6 is located between the second sieve plate 28 and the demister 27. Activated carbon is stacked above the second sieve plate 28.
[0022] A third sieve plate 25 is arranged between the first spray pipe 26 and the first cyclone plate 22. The third sieve plate 25 is also flat. A second spray pipe 24 is arranged between the third sieve plate 25 and the first cyclone plate 22. The second spray pipe 24 has the same structure as the first spray pipe 26 and is also connected with a plurality of spray heads to spray liquid downward. A second cyclone plate 23 is also arranged between the second spray pipe 24 and the first cyclone plate 22. The direction of the swirl generated by the second cyclone plate 23 is opposite to the direction of the swirl generated by the first cyclone plate 22.
[0023] In addition, the sieve holes on the first sieve plate 21 can also be set as inclined holes that penetrate from top to bottom (not shown in the figure), and the inclination directions of two adjacent inclined holes are opposite. The first spray pipe 26 and the second spray pipe 24 are respectively connected to a water pump, and valves are arranged on the pipelines connecting the first spray pipe 26, the second spray pipe 24 and the water pump. The liquid discharged from the liquid discharge port 4 is discharged to a liquid storage tank, and after being subjected to treatments such as sedimentation and filtration, effective components are added as needed, and then the water pump is used to circulate and pump it to the first spray pipe 26 and the second spray pipe 24.
[0024] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A high-efficiency exhaust gas purification device, characterized in that: The invention comprises a purification tower and a base frame, wherein the purification tower is arranged above the base frame; the upper part of the purification tower is conical, the middle part is cylindrical, and the lower part is inverted conical, the purification tower is provided with an exhaust port at the top and a liquid discharge port at the bottom; the purification tower is provided with an exhaust gas inlet and a hot air inlet on its cylindrical side from bottom to top, a first sieve plate is provided above the exhaust gas inlet in the purification tower, the first sieve plate is in the shape of a flat plate, a first cyclone plate is provided above the first sieve plate, a first spray pipe is provided above the first cyclone plate, a plurality of spray heads are connected to the first spray pipe to spray liquid downward, a demister is provided above the first spray pipe, the demister is in the shape of a cone with a tip facing upward, a plurality of connecting rods are provided on the outer edge of the demister to be connected to the inner wall of the purification tower body, a second sieve plate is provided above the demister, the hot air inlet is located between the second sieve plate and the demister, and activated carbon is stacked above the second sieve plate.
2. The high-efficiency exhaust gas purification device according to claim 1 is characterized in that: A third sieve plate is provided between the first spray pipe and the first cyclone plate. The third sieve plate is in a flat plate shape. A second spray pipe is provided between the third sieve plate and the first cyclone plate. The second spray pipe is connected to a plurality of spray heads to spray liquid downward.
3. The high-efficiency exhaust gas purification device according to claim 2 is characterized in that: A second swirl plate is provided between the second spray pipe and the first swirl plate, and the direction in which the swirl is guided by the second swirl plate is opposite to the direction in which the swirl is guided by the first swirl plate.
4. The high-efficiency exhaust gas purification device according to claim 3 is characterized in that: The sieve holes on the first sieve plate are inclined holes that penetrate from top to bottom, and the inclined directions of two adjacent inclined holes are opposite.
5. The high-efficiency exhaust gas purification device according to claim 4 is characterized in that: The first spray pipe and the second spray pipe are connected to a water pump respectively. The pipelines connecting the first spray pipe, the second spray pipe and the water pump are provided with valves. The water pump processes the liquid discharged from the drain port and then recirculates it to the first spray pipe and the second spray pipe.