Explosion-proof gas hazard object recycling and purifying device with multi-stage prevention and control

Abstract

The utility model relates to industrial waste gas treatment technical field especially a kind of explosion-proof gas dangerous object recovery purification device with multistage prevention and control, including cyclone separator, the top of cyclone separator is connected with filter box, dust filter screen plate is installed in the inner chamber of filter box, the right side fixed communication of filter box has activated carbon adsorption tank, the right side communication of activated carbon adsorption tank has heat exchange tank, the inner chamber of heat exchange tank is installed with heat exchange mechanism by bolt, the right side of heat exchange tank is installed with first fire arrester by bolt. Industrial waste gas enters cyclone separator to remove larger particulate matter in gas, gas enters filter box and dust filter screen plate filters dust in gas, gas enters activated carbon adsorption tank and adsorbs internal pollutants, enters heating tank and is heated, so that waste gas can be filtered in multiple stages before combustion, avoid too many impurities to enter catalytic combustion chamber and cause blockage, reduce cleaning difficulty.

Description

Technical Field

[0001] This utility model relates to the field of industrial waste gas treatment technology, specifically to an explosion-proof gas hazardous material recovery and purification device with multi-level control. Background Technology

[0002] Industrial waste gas treatment refers to the purification and pretreatment of waste gas generated in industrial sites such as factories and workshops before it is discharged to the outside world. Waste gas purification mainly refers to the treatment of industrial waste gases generated in industrial sites, such as dust particles, flue gas, odorous gases and toxic and harmful gases.

[0003] A search revealed that the announcement number is CN215112662U, and the name is "An Industrial Waste Gas Purification and Treatment Device," which includes a combustion chamber used to remove combustibles from the waste gas. Research and analysis showed that although it can perform secondary purification on waste gas that fails to meet the standards before it is discharged, resulting in more thorough purification and effectively preventing substandard waste gas from being released into the air and affecting air quality, thus effectively protecting people's health, it still has the following shortcomings to some extent.

[0004] For example, the above-mentioned devices cannot perform multi-stage filtration of exhaust gas before combustion. During the combustion process, impurities mixed inside the exhaust gas will remain in the combustion chamber, causing blockages and increasing the difficulty of cleaning. Moreover, the heat energy after combustion cannot be recovered and reused to preheat the exhaust gas, affecting the heating efficiency of the exhaust gas and resulting in poor energy-saving and environmental protection effects. In order to solve the above technical problems, we have designed an explosion-proof gas hazardous material recovery and purification device with multi-stage prevention and control. Utility Model Content

[0005] The purpose of this utility model is to provide an explosion-proof gas hazardous material recovery and purification device with multi-level prevention and control. It has multi-level filtration function to prevent impurities from entering the combustion chamber and causing blockage, reducing cleaning difficulty. It can recover and reuse heat, improve the heating efficiency of exhaust gas, and has the advantages of being more energy-saving and environmentally friendly. It solves the problems of not being able to perform multi-level filtration of exhaust gas, which easily leads to blockage in the combustion chamber, increases cleaning difficulty, and makes it impossible to recover and reuse heat, resulting in poor energy-saving and environmental protection effects.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-level explosion-proof gas hazardous material recovery and purification device, comprising a cyclone separator, a filter box connected to the top of the cyclone separator, a dust filter screen installed in the inner cavity of the filter box, an activated carbon adsorption box fixedly connected to the right side of the filter box, a heat exchange box connected to the right side of the activated carbon adsorption box, a heat exchange mechanism installed in the inner cavity of the heat exchange box by bolts, a first flame arrester installed in the right side of the heat exchange box by bolts, a heating box installed in the right side of the first flame arrester by bolts, an electric heater installed in the bottom of the inner cavity of the heating box by bolts, a second flame arrester installed in the right side of the heating box by bolts, a catalytic combustion chamber installed in the right side of the second flame arrester by bolts, a connecting air duct connected to the rear air outlet of the catalytic combustion chamber, and an explosion-proof pressure relief valve installed in the top of the catalytic combustion chamber by bolts.

[0007] Preferably, the cyclone separator includes a separation tank, a slag collection tank is bolted to the bottom of the separation tank, an air inlet pipe and an air outlet pipe are welded to the left side and top of the separation tank respectively, and the right side of the air outlet pipe is fixedly connected to the filter box.

[0008] Preferably, the filter box is fitted with shut-off valves on both the left and right sides, and the top of the filter box is fixedly connected to an air inlet valve.

[0009] Preferably, a dust collection tank is bolted to the bottom of the filter box, and a support frame is fixedly installed between the bottom of the filter box and the cyclone separator.

[0010] Preferably, the heat exchange mechanism includes an upper fixed pipe and a lower fixed pipe, and a heat exchange pipe is welded between the upper fixed pipe and the lower fixed pipe. The rear side of the lower fixed pipe passes through the heat exchange box and is connected to a discharge pipe, and the rear side of the upper fixed pipe passes through the heat exchange box and is fixedly connected to a connecting air duct.

[0011] Preferably, both sides of the cyclone separator are bolted with supporting vertical plates, and the bottom of the activated carbon adsorption box and the heat exchange box are fixedly installed with supporting bases.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] Industrial waste gas enters a cyclone separator to remove larger particles. The gas then enters a filter box where a dust filter screen filters out fine dust. Next, the gas enters an activated carbon adsorption box to adsorb internal pollutants. Finally, it enters a heating box for heating. This multi-stage filtration of the waste gas before combustion prevents excessive impurities from entering the catalytic combustion chamber and causing blockages, thus reducing cleaning difficulty.

[0014] High-temperature gas flows into the upper fixed pipe through the connecting air duct. The high-temperature gas exchanges heat with the exhaust gas flowing through the heat exchange box through the heat exchange tube. Preheating the exhaust gas can improve the efficiency of subsequent heating. At the same time, the waste heat can be recovered and reused, making it more energy-saving and environmentally friendly. Attached Figure Description

[0015] Figure 1 This is an axonometric view of the structure of this utility model;

[0016] Figure 2 This is an internal isometric view of the filter box of this utility model;

[0017] Figure 3 This is an internal isometric view of the heat exchange box and heating box of this utility model;

[0018] Figure 4 This is a rear axonometric view of the structure of this utility model.

[0019] In the diagram: 1. Cyclone separator; 2. Supporting vertical plate; 3. Filter box; 4. Inlet valve; 5. Shut-off valve; 6. Support frame; 7. Support base; 8. Activated carbon adsorption box; 9. Heat exchange box; 10. First flame arrester; 11. Heating box; 12. Connecting air duct; 13. Second flame arrester; 14. Explosion-proof pressure relief valve; 15. Catalytic combustion chamber; 16. Upper fixed pipe; 17. Exhaust pipe; 18. Inlet pipe; 19. Separation tank; 20. Slag collection tank; 21. Ash collection tank; 22. Dust filter plate; 23. Heat exchange mechanism; 24. Lower fixed pipe; 25. Heat exchange tube; 26. Electric heater; 27. Discharge pipe. Detailed Implementation

[0020] Please see Figures 1-4A multi-level explosion-proof gas hazardous material recovery and purification device includes a cyclone separator 1. A filter box 3 is connected to the top of the cyclone separator 1. A dust filter plate 22 is installed inside the filter box 3. The dust filter plate 22 is a metal filter with a pore size of 50μm, installed at a 30° angle to enhance impurity removal. An activated carbon adsorption box 8 is fixedly connected to the right side of the filter box 3. A heat exchange box 9 is connected to the right side of the activated carbon adsorption box 8. A heat exchange mechanism 23 is bolted to the inner cavity of the heat exchange box 9. A first flame arrester 10 is bolted to the right side of the heat exchange box 9. By setting the first flame arrester 10 and the second flame arrester 13, it is possible to prevent flame backfire or explosion propagation and prevent the explosion shock wave from transmitting to the upper part of the device. To prevent flame damage to upstream equipment such as filters and adsorption towers, a heating box 11 is bolted to the right side of the first flame arrester 10. An electric heater 26 is bolted to the bottom of the inner cavity of the heating box 11. A second flame arrester 13 is bolted to the right side of the heating box 11. A catalytic combustion chamber 15 is bolted to the right side of the second flame arrester 13. A connecting air duct 12 is connected to the air outlet at the rear of the catalytic combustion chamber 15. An explosion-proof pressure relief valve 14 is bolted to the top of the catalytic combustion chamber 15. By setting the explosion-proof pressure relief valve 14, it can be quickly opened to release high-pressure gas when the concentration of combustible gas in the catalytic combustion chamber 15 exceeds the standard or when abnormal combustion causes a sudden increase in pressure, thus preventing the shell from rupturing.

[0021] Please see Figure 2 The cyclone separator 1 includes a separation tank 19. A slag collection tank 20 is bolted to the bottom of the separation tank 19. By setting up the slag collection tank 20, the separated and settled particulate impurities can be collected and finally removed from the bottom of the separation tank 19 for cleaning. An air inlet pipe 18 and an air outlet pipe 17 are welded to the left side and top of the separation tank 19, respectively. The right side of the air outlet pipe 17 is fixedly connected to the filter box 3.

[0022] Please see Figure 2 Both sides of the filter box 3 are fitted with shut-off valves 5. By setting shut-off valves 5, the pipes on both sides of the filter box 3 can be manually closed. The top of the filter box 3 is fixedly connected to an air inlet valve 4. The top of the air inlet valve 4 is connected to an external high-pressure gas pipe. When the pipes on both sides of the filter box 3 are closed, the air inlet valve 4 is opened, and the high-pressure gas blows towards the dust filter screen 22 to blow off the dust attached to the lower surface, thus avoiding clogging of the mesh.

[0023] Please see Figure 1 and Figure 2 The bottom of the filter box 3 is bolted with a dust collection tank 21. By setting up the dust collection tank 21, the filtered dust can be collected and removed from the bottom of the filter box 3 for cleaning. A support frame 6 is fixedly installed between the bottom of the filter box 3 and the cyclone separator 1. By setting up the support frame 6, the filter box 3 can be supported and installed.

[0024] Please see Figure 3 The heat exchange mechanism 23 includes an upper fixed pipe 16 and a lower fixed pipe 24. A heat exchange pipe 25 is welded between the upper fixed pipe 16 and the lower fixed pipe 24. The rear side of the lower fixed pipe 24 passes through the heat exchange box 9 and is connected to the discharge pipe 27. The rear side of the upper fixed pipe 16 passes through the heat exchange box 9 and is fixedly connected to the connecting air duct 12.

[0025] Please see Figure 1 Both sides of the cyclone separator 1 are bolted with support plates 2. By setting the support plates 2, the cyclone separator 1 can be supported and limited. The bottom of the activated carbon adsorption box 8 and the heat exchange box 9 are fixedly installed with support bases 7. By setting the support bases 7, the activated carbon adsorption box 8 and the heat exchange box 9 can be supported and installed.

[0026] In operation, this device is connected to an external power supply and controller. Industrial waste gas enters the separation tank 19 through the inlet pipe 18. Larger particles are removed through centrifugal force, and impurities settle and fall into the slag collection tank 20 for collection. The gas then enters the filter box 3 through the exhaust pipe 17, where the dust filter screen 22 filters out fine dust. The filtered gas then enters the activated carbon adsorption box 8 to adsorb volatile organic compounds and odorous gases. Afterward, it passes through the heat exchange box 9 and the first flame arrester 10 before entering the heating box 11. At this point, the electric heater 26 is activated to heat the flowing gas, raising it to the catalyst ignition temperature (typically 200-350℃) before it enters the catalytic combustion chamber 15. The high-temperature waste gas then passes through the catalytic converter... In the catalyst bed, flameless combustion occurs, oxidizing and decomposing volatile organic compounds, carbon monoxide, methane, and other combustible gases into CO2 and H2O at a lower temperature, thus achieving harmless emissions. This allows for multi-stage filtration of exhaust gas before combustion, preventing excessive impurities from entering the catalytic combustion chamber 15 and causing blockages, reducing cleaning difficulty. The purified high-temperature gas flows out of the catalytic combustion chamber 15, through the connecting air duct 12, into the upper fixed pipe 16, then through each heat exchange tube 25, and finally out through the lower fixed pipe 24. During the flow of the high-temperature gas through the heat exchange tubes 25, it can exchange heat with the exhaust gas flowing through the heat exchange box 9. Preheating the exhaust gas can improve the efficiency of subsequent heating, and at the same time, it can recover and reuse waste heat, making it more energy-saving and environmentally friendly.

[0027] In summary, this explosion-proof gas hazardous material recovery and purification device with multi-stage control solves the problems of inability to perform multi-stage filtration of exhaust gas, which easily leads to blockage in the combustion chamber, increasing cleaning difficulty, inability to recover and reuse heat, and poor energy-saving and environmental protection effects. This is achieved through the coordinated use of cyclone separator 1, filter box 3, activated carbon adsorption box 8, heat exchange box 9, connecting air duct 12, catalytic combustion chamber 15, dust filter plate 22, and heat exchange mechanism 23.

Claims

1. A multi-level explosion-proof gaseous hazardous material recovery and purification device, comprising a cyclone separator (1), characterized in that: The top of the cyclone separator (1) is connected to a filter box (3), and a dust filter plate (22) is installed in the inner cavity of the filter box (3). An activated carbon adsorption box (8) is fixedly connected to the right side of the filter box (3). A heat exchange box (9) is connected to the right side of the activated carbon adsorption box (8). A heat exchange mechanism (23) is installed in the inner cavity of the heat exchange box (9) by bolts. A first flame arrester (10) is installed in the right side of the heat exchange box (9) by bolts. A heating box (11) is installed in the right side of the first flame arrester (10) by bolts. An electric heater (26) is installed in the bottom of the inner cavity of the heating box (11) by bolts. A second flame arrester (13) is installed in the right side of the heating box (11) by bolts. A catalytic combustion chamber (15) is installed in the right side of the second flame arrester (13) by bolts. A connecting air duct (12) is connected to the air outlet at the rear side of the catalytic combustion chamber (15). An explosion-proof pressure relief valve (14) is installed in the top of the catalytic combustion chamber (15) by bolts.

2. The explosion-proof gas hazardous material recovery and purification device with multi-level control as described in claim 1, characterized in that: The cyclone separator (1) includes a separation tank (19), and a slag collection tank (20) is bolted to the bottom of the separation tank (19). An air inlet pipe (18) and an air outlet pipe (17) are welded to the left side and top of the separation tank (19), respectively. The right side of the air outlet pipe (17) is fixedly connected to the filter box (3).

3. The explosion-proof gas hazardous material recovery and purification device with multi-level control as described in claim 1, characterized in that: The filter box (3) is fitted with shut-off valves (5) on both the left and right sides, and the filter box (3) is fixedly connected to an air inlet valve (4).

4. The explosion-proof gas hazardous material recovery and purification device with multi-level control as described in claim 1, characterized in that: The bottom of the filter box (3) is bolted to a dust collection tank (21), and a support frame (6) is fixedly installed between the bottom of the filter box (3) and the cyclone separator (1).

5. The explosion-proof gas hazardous material recovery and purification device with multi-level control as described in claim 1, characterized in that: The heat exchange mechanism (23) includes an upper fixed pipe (16) and a lower fixed pipe (24). A heat exchange pipe (25) is welded between the upper fixed pipe (16) and the lower fixed pipe (24). The rear side of the lower fixed pipe (24) passes through the heat exchange box (9) and is connected to the discharge pipe (27). The rear side of the upper fixed pipe (16) passes through the heat exchange box (9) and is fixedly connected to the connecting air duct (12).

6. The explosion-proof gas hazardous material recovery and purification device with multi-level control as described in claim 1, characterized in that: The left and right sides of the cyclone separator (1) are connected to support plates (2) by bolts, and the bottom of the activated carbon adsorption box (8) and the heat exchange box (9) are fixedly installed with support bases (7).

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