Waste gas purification spraying device

Abstract

The utility model discloses a waste gas purification spraying device, which belongs to the field of waste gas treatment and comprises a spiral-flow type spraying assembly, a demisting assembly is arranged at the top end of the spiral-flow type spraying assembly, and a dry type filtering assembly is arranged at the top end of the demisting assembly. According to the technical scheme, the waste gas treatment device is characterized in that waste gas spirally flows through a spiral smoke guide plate in a spiral-flow type spraying assembly, the retention time of the waste gas in the device is prolonged, the contact area of the waste gas and spraying water is increased, and harmful ingredients in the waste gas can be fully removed through water flow evenly sprayed by a water spraying ring; a microporous ceramic filter plate and a bag type filter screen in the dry type filter assembly can perform multi-layer fine filtration on waste gas, effectively intercept tiny particles and impurities, greatly improve the waste gas purification efficiency, enable the discharged waste gas to reach a higher environment-friendly standard, and meanwhile, due to the design of a through opening in the outer wall of the upper end of a smoke exhaust pipe, the waste gas can be uniformly diffused all around, so that the smoke exhaust efficiency is improved. And more sufficient contact with spraying water is realized, so that the purification effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment, and in particular to a waste gas purification spray device. Background Technology

[0002] Waste gas purification refers to the pretreatment of waste gas generated in industrial sites and factory workshops before it is discharged to meet national standards for waste gas emissions. There are various methods for waste gas purification, including adsorption, combustion, catalysis, biological methods, and spraying. Spraying is a commonly used method in waste gas purification. During the spraying process, the tiny droplets formed by the liquid can collide with and adhere to the particulate matter in the waste gas, thereby separating the particulate matter from the waste gas and achieving the purpose of purifying the waste gas.

[0003] Chinese Patent Application Publication No. CN202420245108.6 discloses a waste gas purification spray device. This solution concentrates a large amount of waste gas inside the smoke collection box through the smoke inlet pipe. By driving a negative pressure pump to deliver negative pressure to the suction pipe, the waste gas inside the smoke collection box can be transported to the connecting pipe. In conjunction with the aeration discs installed in the waste gas purification mechanism, the transported waste gas is dispersed to the aeration holes at the top of multiple sets of aeration discs, so that it can fully contact the purified water inside the spray tower. However, during the spraying process, the waste gas moves upward. In the spray device mentioned in the above patent, after the waste gas is sprayed out of the aeration holes, it moves upward quickly. The waste gas may not have enough time to fully contact the purified water inside the spray tower, which may affect the waste gas treatment effect.

[0004] Therefore, we propose a waste gas purification spray device. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a waste gas purification spray device. The spiral guide plate in the vortex spray assembly causes the waste gas to flow in a spiral pattern, extending the residence time of the waste gas within the device and increasing the contact area with the spray water. Combined with the evenly sprayed water flow from the spray ring, it can effectively remove harmful components from the waste gas. The microporous ceramic filter plate and bag filter in the dry filtration assembly can perform multi-layer fine filtration of the waste gas, effectively intercepting tiny particles and impurities, significantly improving the waste gas purification efficiency, and enabling the emitted waste gas to meet higher environmental standards. Simultaneously, the opening design on the upper outer wall of the exhaust pipe allows the waste gas to diffuse evenly in all directions, ensuring more thorough contact with the spray water and enhancing the purification effect.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A waste gas purification spray device includes a swirl spray assembly, a demisting assembly at the top of the swirl spray assembly, and a dry filter assembly at the top of the demisting assembly. The swirl spray assembly includes a shell, an inner tank fixedly connected inside the shell, a filter plate fixedly connected to the top of the inner tank, a smoke inlet pipe above the filter plate, one end of the smoke inlet pipe extending to the outside of the shell, a spiral smoke guide plate above the smoke inlet pipe, a water filter seat above the spiral smoke guide plate, a conical baffle fixedly connected to the center of the water filter seat, an exhaust pipe penetrating through the center of the conical baffle, a conical shield fixedly connected to the top of the exhaust pipe, a water spray ring above the conical shield, a water inlet pipe connected to the outer wall of the water spray ring, and the end of the water inlet pipe away from the water spray ring extending to the outside of the shell.

[0008] Furthermore, the outer wall of the outer shell is fixedly connected to a drain pipe that communicates with the inner tub.

[0009] Furthermore, a connecting pipe adapted to the water spray ring is fixedly connected to the top of the outer shell.

[0010] Furthermore, a water spray hole is provided at the bottom end of the water spray ring.

[0011] Furthermore, the top of the water filter base is provided with a groove that matches the conical baffle, and the bottom of the water filter base is provided with a filter hole that communicates with the groove.

[0012] Furthermore, the outer wall at the upper end of the exhaust pipe has multiple equidistant openings.

[0013] Furthermore, the defogging assembly includes a connecting shell that is threadedly connected to the connecting pipe, a baffle defogging plate is fixedly connected inside the connecting shell, and a threaded pipe is fixedly connected to the top of the connecting shell.

[0014] Furthermore, the dry filtration assembly includes a protective shell that is threadedly connected to a threaded pipe. A microporous ceramic filter plate is fixedly connected inside the protective shell. A filter screen mounting plate is disposed above the microporous ceramic filter plate. A bag filter screen is fixedly connected to the top of the filter screen mounting plate. A connecting screw is fixedly connected to the top of the protective shell.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. The spiral guide plate in the swirl spray assembly creates a spiral flow of exhaust gas, extending its residence time within the device and increasing the contact area with the spray water. Combined with the evenly sprayed water flow from the spray ring, it can effectively remove harmful components from the exhaust gas. The microporous ceramic filter plate and bag filter in the dry filter assembly can perform multi-layer fine filtration of the exhaust gas, effectively intercepting tiny particles and impurities, significantly improving the exhaust gas purification efficiency, and enabling the emitted exhaust gas to meet higher environmental standards. At the same time, the opening design on the upper outer wall of the exhaust pipe allows the exhaust gas to diffuse evenly in all directions, making it more fully in contact with the spray water and improving the purification effect.

[0017] 2. This device integrates multiple functions such as spray purification, demisting, and dry filtration. The baffle demister effectively removes water mist from the exhaust gas using the baffle principle, avoiding problems such as corrosion and blockage of subsequent pipelines due to water vapor. The cyclone spray assembly and the dry filtration assembly work together to not only treat gaseous pollutants in the exhaust gas, but also remove solid particles. It is suitable for exhaust gas purification under various complex working conditions and has a wide range of applications. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0019] Figure 2 This is a schematic diagram of the overall disassembled structure in this embodiment;

[0020] Figure 3 This is a schematic diagram of the swirl spray assembly in this embodiment;

[0021] Figure 4 This is a schematic diagram of the dry filtration assembly in this embodiment;

[0022] Figure 5 This is a schematic diagram of the defogging component in this embodiment.

[0023] In the diagram, 1. Swirl spray assembly; 2. Demisting assembly; 3. Dry filter assembly; 101. Outer shell; 102. Inner tank; 103. Drain pipe; 104. Smoke inlet pipe; 105. Water inlet pipe; 106. Filter plate; 107. Spiral smoke guide plate; 108. Water spray ring; 109. Connecting pipe; 110. Water filter base; 111. Conical baffle; 112. Smoke exhaust pipe; 113. Conical shield; 201. Connecting shell; 202. Threaded pipe; 203. Baffle demisting plate; 301. Protective shell; 302. Connecting threaded pipe; 303. Microporous ceramic filter plate; 304. Filter screen mounting plate; 305. Bag filter screen. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0026] Reference Figures 1-5 As shown, a preferred embodiment of the present invention provides a waste gas purification spray device, including a swirling spray assembly 1, a demisting assembly 2 at the top of the swirling spray assembly 1, and a dry filter assembly 3 at the top of the demisting assembly 2. The swirling spray assembly 1 includes a housing 101, an inner tank 102 fixedly connected inside the housing 101, a filter plate 106 fixedly connected to the top of the inner tank 102, and a smoke inlet pipe 104 above the filter plate 106. One end of the smoke inlet pipe 104 extends to the outside of the housing 101, allowing smoke to enter. A spiral smoke guide plate 107 is provided above the pipe 104, and a water filter seat 110 is provided above the spiral smoke guide plate 107. A conical baffle 111 is fixedly connected to the center of the water filter seat 110. A smoke exhaust pipe 112 passes through the center of the conical baffle 111. A conical shield 113 is fixedly connected to the top of the smoke exhaust pipe 112. A water spray ring 108 is provided above the conical shield 113. A water inlet pipe 105 is connected to the outer wall of the water spray ring 108. The end of the water inlet pipe 105 away from the water spray ring 108 extends to the outside of the outer shell 101.

[0027] The outer shell 101 serves as the external protective structure of the device. The inner barrel 102 cooperates with the outer shell 101 to provide space for the internal purification process. The filter plate 106 filters the wastewater and blocks larger particulate impurities. The smoke inlet pipe 104 is used to introduce exhaust gas into the device. The spiral guide plate 107 causes the exhaust gas to flow in a spiral, increasing the contact time and area between the exhaust gas and the subsequent purification components, thereby improving the purification effect. The water filter seat 110 is used to support the conical baffle 111 and simultaneously performs preliminary filtration of the wastewater. The conical baffle 111 supports the exhaust pipe 112, which guides the exhaust gas. The conical shield 113 prevents the water sprayed from the upper water spray ring 108 from falling directly into the exhaust pipe 112, thus avoiding affecting the exhaust gas emission. The water inlet pipe 105 introduces water into the water spray ring 108, which sprays water into the device to purify the exhaust gas and remove harmful components from it.

[0028] A drain pipe 103 communicating with the inner tub 102 is fixedly connected to the outer wall of the outer shell 101;

[0029] The wastewater generated after spraying and purifying the exhaust gas in the inner tank 102 is discharged through the drain pipe 103.

[0030] The top of the outer casing 101 is fixedly connected to a connecting pipe 109 that is compatible with the water spray ring 108;

[0031] The housing 101 and the defogging component 2 are connected by the connecting pipe 109.

[0032] The bottom end of the water spray ring 108 is provided with a water spray hole;

[0033] Water from the spray ring 108 is evenly sprayed into the device through the spray holes to purify the exhaust gas.

[0034] The top of the water filter base 110 is provided with a groove that matches the conical baffle 111, and the bottom of the water filter base 110 is provided with a filter hole that communicates with the groove.

[0035] The conical baffle 111 is installed through the groove, and the filter holes facilitate the dripping of wastewater.

[0036] The outer wall of the upper end of the exhaust pipe 112 has multiple equally spaced openings;

[0037] The exhaust gas is allowed to pass smoothly through the exhaust pipe 112 through the opening, allowing the exhaust gas to spread in all directions and facilitating full contact between the exhaust gas and the spray water.

[0038] The defogging assembly 2 includes a connecting shell 201 that is threadedly connected to the connecting pipe 109. A baffle defogging plate 203 is fixedly connected inside the connecting shell 201, and a threaded pipe 202 is fixedly connected to the top of the connecting shell 201.

[0039] The connecting shell 201 is connected to the connecting pipe 109, and at the same time provides installation space for the internal baffle demister 203. The baffle demister 203 uses the baffle principle to remove water mist from the exhaust gas, making the exhaust gas drier. The threaded pipe 202 is used to connect to the subsequent dry filter assembly 3 to ensure the overall connection stability of the device.

[0040] The dry filter assembly 3 includes a protective shell 301 that is threadedly connected to the threaded tube 202. A microporous ceramic filter plate 303 is fixedly connected inside the protective shell 301. A filter screen mounting plate 304 is provided above the microporous ceramic filter plate 303. A bag filter 305 is fixedly connected to the top of the filter screen mounting plate 304. A connecting screw tube 302 is fixedly connected to the top of the protective shell 301.

[0041] The protective shell 301 protects the internal filter components and is threadedly connected to the threaded tube 202 to ensure stable connection of the device. The microporous ceramic filter plate 303 performs preliminary dry filtration of the exhaust gas to remove smaller particulate impurities. The filter screen mounting plate 304 is used to install and fix the bag filter 305. The bag filter 305 further filters the tiny particles and impurities in the exhaust gas, so that the discharged exhaust gas reaches a higher purification standard. The connecting screw tube 302 can be used to connect subsequent exhaust pipes and other components to ensure the final discharge of exhaust gas.

[0042] Specific implementation process: First, the exhaust gas enters the inner tank 102 of the vortex spray assembly 1 through the smoke inlet pipe 104. Under the action of the spiral guide plate 107, the exhaust gas generates a spiral flow, increasing the contact time and area with subsequent purification components. It is then conveyed upward through the exhaust pipe 112. The opening on the outer wall of the upper end of the exhaust pipe 112 allows the exhaust gas to be discharged to the surroundings. At the same time, water is supplied to the spray ring 108 through the water inlet pipe 105. Water is sprayed out from the spray holes at the bottom of the spray ring 108 to spray and purify the discharged exhaust gas, removing harmful components from the exhaust gas. During the spray purification process, the wastewater generated falls onto the filter seat 110. The groove at the top of the filter seat 110 fixes the conical baffle 111. The wastewater drips down through the filter holes at the bottom of the filter seat 110. Larger particles are blocked by the filter plate 106, and the wastewater flows through the drain pipe 10. 3. The inner tank 102 is discharged. The conical shield 113 prevents the water sprayed from the upper water spray ring 108 from falling directly into the exhaust pipe 112 and affecting the exhaust gas emission. Then, the exhaust gas with water mist enters the connecting shell 201 of the demisting component 2. The demisting plate 203 uses the deflection principle to remove the water mist in the exhaust gas, making the exhaust gas drier. The treated exhaust gas enters the dry filter component 3 from the threaded pipe 202. After entering the protective shell 301 of the dry filter component 3, the exhaust gas first passes through the microporous ceramic filter plate 303 for preliminary dry filtration to remove smaller particulate impurities. Then it passes through the bag filter 305 for further filtration to remove tiny particles and impurities in the exhaust gas, so that the discharged exhaust gas reaches a higher purification standard. Finally, the purified exhaust gas is connected to the subsequent exhaust pipe and other components through the connecting threaded pipe 302 for final discharge.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waste gas purification spray device, characterized in that: It includes a swirl spray assembly (1), a demisting assembly (2) is provided at the top of the swirl spray assembly (1), and a dry filter assembly (3) is provided at the top of the demisting assembly (2). The swirling spray assembly (1) includes a housing (101), an inner tank (102) fixedly connected inside the housing (101), a filter plate (106) fixedly connected to the top of the inner tank (102), a smoke inlet pipe (104) above the filter plate (106), one end of the smoke inlet pipe (104) extending to the outside of the housing (101), a spiral smoke guide plate (107) above the smoke inlet pipe (104), and a water filter seat (1) above the spiral smoke guide plate (107). 10) A conical baffle (111) is fixedly connected to the center of the water filter base (110). A smoke exhaust pipe (112) passes through the center of the conical baffle (111). A conical shield (113) is fixedly connected to the top of the smoke exhaust pipe (112). A water spray ring (108) is provided above the conical shield (113). A water inlet pipe (105) is connected to the outer wall of the water spray ring (108). The end of the water inlet pipe (105) away from the water spray ring (108) extends to the outside of the outer shell (101).

2. The waste gas purification spray device according to claim 1, characterized in that: The outer wall of the outer shell (101) is fixedly connected to a drain pipe (103) that communicates with the inner barrel (102).

3. The waste gas purification spray device according to claim 2, characterized in that: The top of the outer shell (101) is fixedly connected to a connecting pipe (109) adapted to the water spray ring (108).

4. The waste gas purification spray device according to claim 3, characterized in that: The bottom end of the water spray ring (108) is provided with a water spray hole.

5. The waste gas purification spray device according to claim 1, characterized in that: The top of the water filter base (110) is provided with a groove that is adapted to the conical baffle (111), and the bottom of the water filter base (110) is provided with a filter hole that communicates with the groove.

6. The waste gas purification spray device according to claim 1, characterized in that: The outer wall of the upper end of the exhaust pipe (112) has multiple equidistant openings.

7. The waste gas purification spray device according to claim 1, characterized in that: The defogging assembly (2) includes a connecting shell (201) threadedly connected to the connecting pipe (109), a baffle defogging plate (203) fixedly connected inside the connecting shell (201), and a threaded pipe (202) fixedly connected to the top of the connecting shell (201).

8. The waste gas purification spray device according to claim 1, characterized in that: The dry filtration assembly (3) includes a protective shell (301) threadedly connected to a threaded tube (202). A microporous ceramic filter plate (303) is fixedly connected inside the protective shell (301). A filter screen mounting plate (304) is provided above the microporous ceramic filter plate (303). A bag filter (305) is fixedly connected to the top of the filter screen mounting plate (304). A connecting screw tube (302) is fixedly connected to the top of the protective shell (301).

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