A VOCs waste gas treatment device

Abstract

This utility model belongs to the field of waste gas treatment technology, and in particular to a VOCs waste gas treatment device, including a box body. A horizontal plate is fixedly installed on the front and rear inner walls of the box body near the middle position. A gas distribution box is fixedly installed on the lower surface of the horizontal plate. A gas distribution mechanism is fixedly installed on the lower side wall of the gas distribution box. An air inlet pipe is provided between the left side wall of the gas distribution box and the left side wall of the box body. Three layers of metal filter screens are fixedly installed on the inner wall of the box body near the upper position. A liquid distribution box is fixedly installed on the upper surface of the uppermost metal filter screen. A spraying mechanism is fixedly installed on the upper side wall of the liquid distribution box. The upper edge of the right side wall of the box body is connected to the air inlet of the condenser through an air outlet pipe. This utility model can perform triple purification of waste gas through the treatment liquid, metal filter screens, and condenser, making the waste gas treatment effect better. At the same time, it adds a cleaning function to the metal filter screen, making it less prone to clogging, ensuring smooth flow of waste gas, and facilitating use.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically a VOCs waste gas treatment device. Background Technology

[0002] VOCs (volatile organic compounds) refer to organic compounds with a saturated vapor pressure greater than 133.32 Pa at room temperature, a boiling point between 50 and 260 °C at standard atmospheric pressure of 101.3 kPa, and an initial boiling point of 250 °C, or any volatile organic solid or liquid at room temperature and pressure.

[0003] Currently, VOCs waste gas treatment devices, through simple filter screens or systems, are unable to comprehensively filter impurities in VOCs waste gas, resulting in poor treatment effects. Furthermore, during long-term use, the filter screens and activated carbon adsorption plates are prone to clogging, causing poor waste gas flow and requiring shutdown for cleaning, which is very cumbersome. Therefore, we propose a VOCs waste gas treatment device to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a VOCs waste gas treatment device that solves the problems mentioned in the background section.

[0005] (II) Technical Solution To achieve the above objectives, this utility model specifically adopts the following technical solution: A VOCs waste gas treatment device includes a housing. A horizontal plate is fixedly installed on the front and rear inner walls of the housing near the middle. A gas distribution box is fixedly installed on the lower surface of the horizontal plate. A gas distribution mechanism is fixedly installed on the lower side wall of the gas distribution box. An air inlet pipe is provided between the left side wall of the gas distribution box and the left side wall of the housing. Three layers of metal filter screens are fixedly installed on the inner wall of the housing near the upper side. A liquid distribution box is fixedly installed on the upper surface of the uppermost metal filter screen. A spraying mechanism is fixedly installed on the upper side wall of the liquid distribution box. The upper edge of the right side wall of the housing is connected to the air inlet of a condenser via an air outlet pipe. A liquid storage tank is fixedly installed on the lower surface of the condenser and is connected to the drain outlet of the condenser. The liquid storage tank is connected to the liquid distribution box via an extraction mechanism.

[0006] Furthermore, a slag discharge valve is fixedly installed on the left side wall of the box near the lower side, an observation window is embedded on the front side wall of the box, and a plug is threaded onto the upper side wall of the box.

[0007] Furthermore, the gas distribution mechanism includes a gas distribution pipe, a first mechanical seal, a first turbine blade, a stirring pipe, and a one-way gas outlet. The upper surface of the gas outlet pipe is an open structure. The gas distribution pipe is installed on the lower side wall of the gas distribution box through the first mechanical seal. The first turbine blade is fixedly installed on the outer surface of the gas distribution pipe inside the gas distribution box. Stirring pipes are fixedly installed on the lower edges of the left and right sides of the gas distribution pipe. One-way gas outlets are evenly arranged on the front and rear sides of the stirring pipe.

[0008] Furthermore, the mesh diameter of the metal filter plate gradually decreases from bottom to top.

[0009] Furthermore, the spraying mechanism includes a liquid distribution pipe, a second mechanical seal, a second turbine blade, a branch pipe, and nozzles. The lower surface of the liquid distribution pipe is an open structure. The liquid distribution pipe is installed on the upper side wall of the liquid distribution box through the second mechanical seal. The second turbine blade is fixedly installed on the outer surface of the liquid distribution pipe inside the liquid distribution box. The branch pipe is fixedly installed on the upper surface of the liquid distribution pipe. Nozzles are evenly arranged on the lower surface of the branch pipe.

[0010] Furthermore, the extraction mechanism includes a water pump and a conduit. The water pump is installed on the right side of the housing, and the inlet and outlet of the water pump are connected to the storage tank and the distribution tank respectively through the conduit.

[0011] (III) Beneficial Effects Compared with the prior art, this utility model provides a VOCs waste gas treatment device, which has the following beneficial effects: This invention enables triple purification of waste gas through a treatment liquid, a metal filter plate, and a condenser. It also ensures more thorough mixing of the treatment liquid and waste gas, resulting in better waste gas treatment. Furthermore, the extraction mechanism, in conjunction with the liquid distribution box and spraying mechanism, comprehensively cleans the metal filter plate through spraying, enhancing its cleaning function and preventing clogging. This ensures smooth waste gas flow and effective filtration, making it easy to use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic cross-sectional view of the box body of this utility model; Figure 3 This is a cross-sectional view of the air distribution box of this utility model; Figure 4 This is a cross-sectional view of the liquid distribution box of this utility model.

[0013] In the diagram: 1. Housing; 2. Horizontal plate; 3. Air distribution box; 4. Air distribution mechanism; 401. Air distribution pipe; 402. First mechanical seal; 403. First turbine blade; 404. Stirring pipe; 405. One-way air outlet; 5. Air inlet pipe; 6. Metal filter plate; 7. Liquid distribution box; 8. Spraying mechanism; 801. Liquid distribution pipe; 802. Second mechanical seal; 803. Second turbine blade; 804. Branch pipe; 805. Nozzle; 9. Air outlet pipe; 10. Condenser; 11. Liquid storage tank; 12. Extraction mechanism; 121. Water pump; 122. Conduit; 13. Slag discharge valve; 14. Observation window; 15. Plug. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0015] like Figures 1-4 As shown in the figure, an embodiment of the present invention discloses a VOCs waste gas treatment device, including a housing 1. A horizontal plate 2 is fixedly installed on the front and rear inner walls of the housing 1 near the middle position. A gas distribution box 3 is fixedly installed on the lower surface of the horizontal plate 2. A gas distribution mechanism 4 is fixedly installed on the lower side wall of the gas distribution box 3. An air inlet pipe 5 is provided between the left side wall of the gas distribution box 3 and the left side wall of the housing 1. A three-layer metal filter plate 6 is fixedly installed on the inner wall of the housing 1 near the upper position. A liquid distribution box 7 is fixedly installed on the upper surface of the uppermost metal filter plate 6. A spraying mechanism 8 is fixedly installed on the upper side wall of the liquid distribution box 7. The upper edge of the right side wall of the housing 1 is connected to the air inlet of the condenser 10 through an air outlet pipe 9. A liquid storage tank 11 is fixedly installed on the lower surface of the condenser 10 and is connected to the drain outlet of the condenser 10. The liquid storage tank 11 is connected to the liquid distribution box 7 through an extraction mechanism 12.

[0016] like Figure 1 and Figure 2 As shown, in some embodiments, a slag discharge valve 13 is fixedly installed on the left side wall of the box 1 near the lower side, an observation window 14 is embedded on the front side wall of the box 1, and a plug 15 is threadedly installed on the upper side wall of the box 1.

[0017] In this embodiment, the slag discharge valve 13 can discharge the treatment liquid and impurities in the tank 1, the observation window 14 can check the turbidity of the treatment liquid, and the plug 15 can be opened to facilitate the addition of treatment liquid to the tank 1.

[0018] like Figure 2 and Figure 3 As shown, in some embodiments, the air distribution mechanism 4 includes an air distribution pipe 401, a first mechanical seal 402, a first turbine blade 403, a stirring pipe 404, and a one-way air outlet 405. The upper surface of the air outlet pipe 9 is an open structure. The air distribution pipe 401 is installed on the lower side wall of the air distribution box 3 through the first mechanical seal 402. The first turbine blade 403 is fixedly installed on the outer surface of the air distribution pipe 401 inside the air distribution box 3. The stirring pipe 404 is fixedly installed at the lower edge of both the left and right sides of the air distribution pipe 401. One-way air outlets 405 are evenly arranged on the front and rear sides of the stirring pipe 404.

[0019] In this embodiment, the exhaust gas in the gas distribution box 3 flows into the gas distribution pipe 401 through the opening on the upper surface of the gas distribution pipe 401, then flows into the stirring pipe 404 through the gas distribution pipe 401, and finally blows out through the one-way exhaust head 405. At the same time, the pressurized exhaust gas flowing into the air inlet pipe 5 drives the first turbine blade 403 to rotate, which in turn drives the gas distribution pipe 401 to rotate. The gas distribution pipe 401 drives the stirring pipe 404 and the one-way exhaust head 405 to rotate, so that the stirring pipe 404 and the one-way exhaust head 405 stir the treatment liquid, so that the exhaust gas can be evenly distributed in the treatment liquid.

[0020] like Figure 2 As shown, in some embodiments, the mesh diameter of the metal filter plate 6 gradually decreases from bottom to top.

[0021] In this embodiment, the three-layer metal filter plate 6 can better filter dust in the exhaust gas.

[0022] like Figure 2 and Figure 4 As shown, in some embodiments, the spraying mechanism 8 includes a liquid distribution pipe 801, a second mechanical seal 802, a second turbine blade 803, a branch pipe 804, and a nozzle 805. The lower surface of the liquid distribution pipe 801 is an open structure. The liquid distribution pipe 801 is installed on the upper side wall of the liquid distribution box 7 through the second mechanical seal 802. The second turbine blade 803 is fixedly installed on the outer surface of the liquid distribution pipe 801 inside the liquid distribution box 7. The branch pipe 804 is fixedly installed on the upper surface of the liquid distribution pipe 801. The nozzles 805 are evenly arranged on the lower surface of the branch pipe 804.

[0023] In this embodiment, the liquid in the liquid distribution tank 7 flows into the liquid distribution pipe 801 through the opening on the lower surface of the liquid distribution pipe 801, and then flows into the branch pipe 804 through the liquid distribution pipe 801. The liquid is sprayed out through the nozzle 805 on the lower surface of the branch pipe 804 to spray and clean the metal filter screen plate 6. The liquid drawn in by the extraction mechanism 12 drives the second turbine blade 803 to rotate, which in turn drives the liquid distribution pipe 801 to rotate. The liquid distribution pipe 801 drives the nozzle 805 to rotate through the branch pipe 804, so that the nozzle 805 can spray and clean the metal filter screen plate 6 comprehensively.

[0024] like Figure 2 As shown, in some embodiments, the extraction mechanism 12 includes a water pump 121 and a conduit 122. The water pump 121 is installed on the right side of the housing 1, and the inlet and outlet of the water pump 121 are connected to the storage tank 11 and the distribution tank 7 through the conduit 122, respectively.

[0025] In this embodiment, the water pump 121 can pump the condensate in the storage tank 11 into the distribution tank 7 through the conduit 122.

[0026] In use, open the plug 15 and pour the air purification liquid into the housing 1. The air purification liquid flows into the housing 1, causing the fan to draw the exhaust gas into the air distribution box 3 through the air inlet pipe 5. The exhaust gas in the air distribution box 3 flows into the air distribution pipe 401 through the opening on the upper surface of the air distribution pipe 401 in the air distribution mechanism 4, and then into the stirring pipe 404 through the air distribution pipe 401. Finally, it is blown out through the one-way air outlet 405. At the same time, the pressurized exhaust gas flowing into the air inlet pipe 5 drives the first turbine blade 403 to rotate, which in turn drives the air distribution pipe 401 to rotate. The air distribution pipe 401 drives the stirring pipe 404 and the one-way air outlet 405 to rotate, causing the stirring pipe 404 and the one-way air outlet 405 to stir the purification liquid, so that the exhaust gas can be evenly distributed in the purification liquid. The purification liquid reacts with and purifies the pollutants in the exhaust gas. The purified exhaust gas flows upward to the metal filter plate 6, and then through the three-layer metal filter plate 6. Dust in the exhaust gas is filtered, and the filtered exhaust gas flows into the condenser 10 through the exhaust pipe 9. The condenser 10 condenses the exhaust gas, causing impurities to be separated again. The liquid produced by condensation flows into the storage tank 11. The water pump 121 in the extraction mechanism 12 can pump the condensate in the storage tank 11 into the distribution tank 7 through the conduit 122. The liquid in the distribution tank 7 flows into the distribution pipe 801 through the opening on the lower surface of the distribution pipe 801 in the spray mechanism 8, and then into the branch pipe 804 through the distribution pipe 801. The liquid is sprayed out through the nozzle 805 on the lower surface of the branch pipe 804 to spray and clean the metal filter plate 6, making the metal filter plate 6 less prone to clogging. It can perform triple purification of exhaust gas, and at the same time, it can make the treatment liquid and exhaust gas mix more thoroughly, making the exhaust gas treatment effect better. It increases the cleaning function of the metal filter plate 6, making the metal filter plate 6 less prone to clogging, ensuring smooth exhaust gas flow and filtration effect, and facilitating use.

[0027] In summary, this VOCs waste gas treatment device can perform triple purification of waste gas through the treatment liquid, the metal filter plate 6, and the condenser 10, resulting in better waste gas treatment effect. At the same time, it adds a cleaning function to the metal filter plate 6, making it less prone to clogging, ensuring smooth waste gas flow, and facilitating use.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A VOCs waste gas treatment device, comprising a housing (1), characterized in that: A horizontal plate (2) is fixedly installed on the front and rear inner walls of the box (1) near the middle. An air distribution box (3) is fixedly installed on the lower surface of the horizontal plate (2). An air distribution mechanism (4) is fixedly installed on the lower side wall of the air distribution box (3). An air inlet pipe (5) is provided between the left side wall of the air distribution box (3) and the left side wall of the box (1). Three layers of metal filter screens (6) are fixedly installed on the inner wall of the box (1) near the upper side. The uppermost metal filter screen (6) A liquid distribution box (7) is fixedly installed on the upper surface. A spraying mechanism (8) is fixedly installed on the upper side wall of the liquid distribution box (7). The upper edge of the right side wall of the box body (1) is connected to the air inlet of the condenser (10) through an air outlet pipe (9). A liquid storage tank (11) is fixedly installed on the lower surface of the condenser (10), and the liquid storage tank (11) is connected to the drain outlet of the condenser (10). The liquid storage tank (11) is connected to the liquid distribution box (7) through an extraction mechanism (12).

2. The VOCs waste gas treatment device according to claim 1, characterized in that: A slag discharge valve (13) is fixedly installed on the left side wall of the box (1) near the lower side. An observation window (14) is embedded on the front side wall of the box (1). A plug (15) is threaded onto the upper side wall of the box (1).

3. The VOCs waste gas treatment device according to claim 1, characterized in that: The gas distribution mechanism (4) includes a gas distribution pipe (401), a first mechanical seal (402), a first turbine blade (403), a stirring pipe (404), and a one-way gas outlet (405). The upper surface of the gas outlet pipe (9) is an open structure. The gas distribution pipe (401) is installed on the lower side wall of the gas distribution box (3) through the first mechanical seal (402). The first turbine blade (403) is fixedly installed on the outer surface of the gas distribution pipe (401) inside the gas distribution box (3). The stirring pipe (404) is fixedly installed on the lower edge of the left and right sides of the gas distribution pipe (401). One-way gas outlets (405) are evenly arranged on the front and rear sides of the stirring pipe (404).

4. The VOCs waste gas treatment device according to claim 1, characterized in that: The mesh diameter of the metal filter plate (6) gradually decreases from bottom to top.

5. A VOCs waste gas treatment device according to claim 1, characterized in that: The spraying mechanism (8) includes a liquid distribution pipe (801), a second mechanical seal (802), a second turbine blade (803), a branch pipe (804), and a nozzle (805). The lower surface of the liquid distribution pipe (801) is an open structure. The liquid distribution pipe (801) is installed on the upper side wall of the liquid distribution box (7) through the second mechanical seal (802). The second turbine blade (803) is fixedly installed on the outer surface of the liquid distribution pipe (801) inside the liquid distribution box (7). The branch pipe (804) is fixedly installed on the upper surface of the liquid distribution pipe (801). The nozzles (805) are evenly arranged on the lower surface of the branch pipe (804).

6. A VOCs waste gas treatment device according to claim 1, characterized in that: The extraction mechanism (12) includes a water pump (121) and a conduit (122). The water pump (121) is installed on the right side of the housing (1). The inlet and outlet of the water pump (121) are connected to the storage tank (11) and the distribution tank (7) through the conduit (122).

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