Organic waste gas treatment device

Abstract

The application relates to the technical field of organic waste gas treatment, in particular to an organic waste gas treatment equipment, which comprises a pretreatment cylinder, which is used for preliminarily settling dust particles of the entering waste gas and adsorbing the waste gas dissolved in water, a spraying assembly is arranged on the outer wall of the pretreatment cylinder, a filter box is arranged on the right side of the pretreatment cylinder, a combustion furnace is arranged on the right side of the filter box, and a heat exchange box is arranged on the right side of the combustion furnace; the organic waste gas treatment equipment is provided with the pretreatment cylinder, dust of the entering internal organic waste gas is preliminarily removed, and the dust-removed organic waste gas is dried and adsorbed with volatile organic waste gas such as benzene, ester and alcohol under the cooperation of the filter box with dry cotton and activated carbon adsorption cotton; the organic waste gas is fully combusted in the combustion furnace, the organic waste gas containing carbon and hydrogen is decomposed, the waste gas after combustion is passed through the heat exchange box, heat is fully utilized, and meanwhile, damage and influence of the high-temperature waste gas on the surrounding environment are avoided.

Description

Technical Field

[0001] This application relates to the field of organic waste gas treatment technology, specifically to an organic waste gas treatment device. Background Technology

[0002] Industrial production processes generate a large amount of organic waste gas containing volatile organic compounds. Organic waste gas treatment equipment is an environmental protection device used to treat volatile organic waste gas containing benzene, esters, alcohols and other compounds generated in industrial production. It is widely used in many industries such as chemical, printing and coating. However, pollutants in organic waste gas are mostly volatile, toxic, flammable and explosive, which not only harm human health but also have an adverse impact on the ecological environment. Organic waste gas often contains a large number of dust particles. Existing waste gas treatment equipment mostly adopts a single filtration method, which only uses filter screens for filtration and activated carbon adsorption. Some organic waste gas alcohols, esters and aldehydes cannot be fully combusted, decomposed and processed to reduce the impact of emission pollution. Summary of the Invention

[0003] The purpose of this application is to provide an organic waste gas treatment device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the following technical solution is provided in this application: An organic waste gas treatment device includes a pretreatment cylinder, the pretreatment cylinder having a spray chamber inside for initially settling dust particles and adsorbing water-soluble organic waste gas from the incoming waste gas. The spray assembly is installed on the outer wall of the pretreatment cylinder and is used to extract and circulate the filtered water inside the pretreatment cylinder. The filter box is located on the right side of the pretreatment cylinder. The filter box dries and adsorbs volatile organic waste gases containing benzene, esters, alcohols and other compounds after dust settling. The combustion furnace is located on the right side of the filter box. The combustion furnace fully combusts and decomposes the dried and filtered organic waste gas containing carbon and hydrogen into carbon dioxide and water. A heat exchange box is located on the right side of the combustion furnace. The heat exchange box exchanges heat with the high-temperature gas after complete combustion, avoiding the impact of high-temperature waste gas on the surrounding environment and reducing heat waste.

[0005] Furthermore, an air inlet pipe communicating with the internal spray chamber is provided on the outer wall of the pretreatment cylinder near the left side. A one-way valve is provided on the air inlet pipe. A top cover is provided on the top of the pretreatment cylinder. A guide pipe communicating with the inside of the filter box is provided on the top of the top cover. A demister is also provided between the top cover and the pretreatment cylinder.

[0006] In this application, the one-way valve avoids the backflow of gas inside the pretreatment cylinder, the air inlet pipe guides the external organic waste gas to continuously enter the interior for further treatment, and with the cooperation of the demister, the atomized water droplets inside the pretreatment cylinder are removed and discharged from the guide pipe, reducing the impact of water loss.

[0007] Specifically, the spray assembly includes a water storage tank and a circulating pump. The water storage tank is located at the bottom of the front end of the pretreatment cylinder and is fixed to the pretreatment cylinder by bolts. The circulating pump is fixed to the water storage tank by bolts. The pumping pipe of the circulating pump extends into the water storage tank. The water delivery end of the circulating pump is connected to the spray pipe. The spray pipe is annular and has several nozzles.

[0008] In this application, the bottom of the water storage tank is connected to the inside of the pretreatment cylinder via a connecting pipe, and a filter screen is installed inside the water storage tank to protect the end of the circulating pump's water extraction pipe, reducing the amount of dust particles drawn into the circulating pump and affecting the internal water circulation and spraying. The spray pipe is fixed to the pretreatment cylinder with bolts, and with the cooperation of multiple nozzles, the organic waste gas guided into the pretreatment cylinder is sprayed to reduce dust and adsorb water-soluble organic matter.

[0009] Secondly, the top of the filter box is provided with a first sealing cover, and the left end of the filter box is provided with several sets of slide rails. Each set of slide rails is provided with a limiting plate, and the limiting plate is provided with drying cotton in the middle.

[0010] In this application, the bottom of the first sealing cover is provided with a sealing gasket and is fixed to the filter box by bolts to increase the internal sealing. With the cooperation of multiple slide rails, multiple limit plates can be installed in corresponding positions. With the cooperation of multiple drying cotton, it helps to dry the organic waste gas after spraying and dust suppression, and prevents water vapor from entering the subsequent pipeline and affecting the subsequent adsorption filtration and combustion.

[0011] It should be noted that the filter box has an installation frame at the right end, the installation frame has a through groove in the middle, the installation frame has activated carbon adsorption cotton, and the left side of the installation frame has several air holes.

[0012] In this application, the mounting frame and the filter box are inserted into each other, and the through groove and multiple air holes help the organic waste gas to enter the interior of the mounting frame. With continuous waste gas flow, the organic waste gas passes through the activated carbon adsorption cotton, and gases containing benzene, esters and alcohols are adsorbed and filtered by the activated carbon adsorption cotton.

[0013] Furthermore, a guide pipe is provided between the right end of the filter box and the combustion furnace to facilitate the guidance of the filtered exhaust gas into the combustion furnace, and a connecting pipe connected to the inside of the heat exchange box is provided at the exhaust port at the top of the combustion furnace.

[0014] In this application, with the help of the guide pipe, the waste gas containing benzene, ester and alcohol in the filter box is guided into the combustion furnace. The combustion furnace is equipped with an electronic igniter and, with the help of continuous oxygen supply, fully combusts the waste gas containing carbon and hydrogen, decomposes it into water and carbon dioxide, and then guides it to the heat exchange box through the connecting pipe.

[0015] It is worth adding that the heat exchange box is equipped with a second sealing cover on the top, and the heat exchange box is equipped with several vertical plates arranged in an alternating manner. Several heat-absorbing fins are provided on both sides of the vertical plates, and the heat exchange box is equipped with a discharge pipe communicating with the interior at the right end.

[0016] In this application, the heat-absorbing fins and vertical plates are integrally formed and fixed in the heat exchange box. The heat-absorbing fins are hollow inside, and the staggered vertical plates increase the path of the high-temperature exhaust gas in the heat exchange box, making full use of the heat in the high-temperature exhaust gas, and finally guiding it out from the discharge pipe.

[0017] In addition, the area between the inner wall and the outer wall of the heat exchange box is a heat exchange jacket, a drain pipe communicating with the heat exchange jacket is provided at the bottom of the front face of the heat exchange box, and a water inlet pipe communicating with the heat exchange jacket is provided at the top of the front face of the heat exchange box.

[0018] In this application, the drain pipe, the inlet pipe and the heat exchange box are integrally formed, and the ends of the drain pipe and the inlet pipe are fitted with sealing plugs. The inlet pipe helps to guide external water into the heat exchange jacket. Removing the sealing plug on the drain pipe helps to discharge the water after heat absorption, reducing heat waste and preventing the discharge of high-temperature exhaust gas, which could cause burns to the surrounding environment.

[0019] Compared with the prior art, the beneficial effects of this application are: 1. In this application, a pretreatment cylinder is set up, which, in conjunction with a circulating pump and a water storage tank, performs preliminary dust reduction on the organic waste gas entering the cylinder. Then, in conjunction with a filter box equipped with drying cotton and activated carbon adsorption cotton, the organic waste gas after dust reduction is dried and treated with adsorption of volatile organic waste gases such as benzene, esters, and alcohols. After passing through a combustion furnace, the organic waste gas is fully combusted, and the organic waste gas containing hydrocarbons is decomposed. The combusted waste gas passes through a heat exchange box to make full use of the heat, while avoiding damage to the surrounding environment caused by high-temperature waste gas.

[0020] 2. In this application, a one-way valve is used to prevent the backflow of organic waste gas in the intake pipe. With the help of a demister, water droplets from the spray solution inside the pretreatment box are prevented from being discharged with the waste gas, thus avoiding water loss. With the help of multiple sets of limiting plates, the waste gas is dried in multiple layers. With the help of multiple vertical plates with heat-absorbing fins, the path of high-temperature waste gas in the heat exchange box is increased. With the help of the water inlet pipe, the water in the heat exchange jacket is replenished. With the help of the drain pipe, the water after heat absorption is discharged and utilized, reducing heat waste. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall combined structure in this application; Figure 2 This is a schematic diagram of the pretreatment cylinder structure in this application; Figure 3 This is a schematic diagram of the filter box structure in this application; Figure 4 This is a schematic diagram of the internal structure of the filter box in this application; Figure 5 This is a schematic diagram of the combustion furnace structure in this application; Figure 6 This is a schematic diagram of the heat exchange box structure in this application; Figure 7 This is a schematic diagram of the overall cross-sectional structure in this application.

[0022] The meanings of the labels in the diagram are as follows: 1. Pretreatment cylinder; 10. Water storage tank; 100. Circulation pump; 101. Spray pipe; 11. Air inlet pipe; 110. One-way valve; 12. Top cover; 120. Guide pipe; 13. Demister; 2. Filter box; 20. First sealing cover; 21. Guide pipe; 22. Slide rail; 23. Limiting plate; 230. Drying cotton; 24. Mounting frame; 240. Through groove; 241. Air hole; 242. Activated carbon adsorption cotton; 25. Exhaust pipe; 3. Combustion furnace; 30. Connecting pipe; 4. Heat exchange box; 40. Second sealing cover; 41. Vertical plate; 410. Heat absorption fins; 42. Drain pipe; 43. Water inlet pipe; 44. Discharge pipe; 45. Heat exchange jacket. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] Please see Figures 1-7 This embodiment provides a technical solution: An organic waste gas treatment device includes a pretreatment cylinder 1, which has a spray chamber inside for pre-treatment of incoming waste gas to allow dust particles to settle and to adsorb organic waste gas dissolved in water. Furthermore, an air inlet pipe 11 communicating with the internal spray chamber is provided on the outer wall of the pretreatment cylinder 1 near the left side. A one-way valve 110 is provided on the air inlet pipe 11. A top cover 12 is provided on the top of the pretreatment cylinder 1. A guide pipe 120 communicating with the inside of the filter box 2 is provided on the top of the top cover 12. A demister 13 is also provided between the top cover 12 and the pretreatment cylinder 1.

[0025] In this application, the one-way valve 110 prevents the backflow of gas inside the pretreatment cylinder 1 from affecting the process. The air inlet pipe 11 guides the external organic waste gas to continuously enter the interior for further treatment. With the cooperation of the demister 13, the atomized water droplets inside the pretreatment cylinder 1 are removed and discharged from the guide pipe 120, reducing the impact of water loss.

[0026] Among them, the spray assembly is installed on the outer wall of the pretreatment cylinder 1. The spray assembly is used to extract the filtered water inside the pretreatment cylinder 1 and spray it in a circulating manner. Specifically, the spray assembly includes a water storage tank 10 and a circulating pump 100. The water storage tank 10 is located at the bottom of the front end of the pretreatment cylinder 1 and is fixed to the pretreatment cylinder 1 by bolts. The circulating pump 100 is fixed to the water storage tank 10 by bolts. The water pump pipe of the circulating pump 100 extends into the water storage tank 10. The water delivery end of the circulating pump 100 is connected to the spray pipe 101. The spray pipe 101 is annular and has several nozzles.

[0027] In this application, the bottom of the water storage tank 10 is connected to the inside of the pretreatment cylinder 1 via a connecting pipe, and the inside of the water storage tank 10 is equipped with a filter screen to protect the end of the water pump 100's water extraction pipe, reducing the amount of dust particles drawn into the circulating pump 100 and affecting the internal water circulation and spraying. The spray pipe 101 is fixed to the pretreatment cylinder 1 with bolts, and with the cooperation of multiple nozzles, it sprays and reduces dust and adsorbs water-soluble organic matter in the organic waste gas guided into the pretreatment cylinder 1.

[0028] It should be noted that filter box 2 is located on the right side of pretreatment cylinder 1. Filter box 2 dries and adsorbs volatile organic waste gas containing benzene, esters, alcohols and other substances after dust settling. Secondly, the top of the filter box 2 is provided with a first sealing cover 20, and the left end of the filter box 2 is provided with several sets of slide rails 22. Each set of slide rails 22 is provided with a limiting plate 23, and the middle of the limiting plate 23 is provided with drying cotton 230.

[0029] In this application, the bottom of the first sealing cover 20 is provided with a sealing gasket and is fixed to the filter box 2 by bolts to increase the internal sealing. With the cooperation of multiple slide rails 22, multiple limit plates 23 are installed in corresponding positions. With the cooperation of multiple drying cotton 230, it helps to dry the organic waste gas after spraying and dust suppression, and prevents water vapor from entering the subsequent pipeline and affecting the subsequent adsorption filtration and combustion.

[0030] Specifically, the right end of the filter box 2 is provided with an installation frame 24, the middle of the installation frame 24 is provided with a through groove 240, the installation frame 24 is provided with activated carbon adsorption cotton 242, and a number of air holes 241 are provided on the left side of the installation frame 24.

[0031] In this application, the mounting frame 24 is inserted into the filter box 2, and the through groove 240 and multiple air holes 241 cooperate to facilitate the entry of organic waste gas into the mounting frame 24. With continuous waste gas flow, the organic waste gas passes through the activated carbon adsorption cotton 242, and the gases containing benzene, esters and alcohols are adsorbed and filtered by the activated carbon adsorption cotton 242.

[0032] Secondly, the combustion furnace 3 is located on the right side of the filter box 2. The combustion furnace 3 fully combusts and decomposes the dried and filtered organic waste gas containing carbon and hydrogen into carbon dioxide and water. Furthermore, a guide pipe 21 is provided between the right end of the filter box 2 and the combustion furnace 3 to facilitate the guided filtered exhaust gas into the combustion furnace 3. A connecting pipe 30 connected to the inside of the heat exchange box 4 is provided at the exhaust port at the top of the combustion furnace 3.

[0033] In this application, with the assistance of the guide pipe 21, the waste gas containing benzene, esters and alcohols in the filter box 2 is guided into the combustion furnace 3 after drying and adsorption. The combustion furnace 3, with the assistance of an electronic igniter and continuous oxygen supply, fully combusts the waste gas containing carbon and hydrogen, decomposing it into water and carbon dioxide, which are then guided and discharged into the heat exchange box 4 through the connecting pipe 30.

[0034] Specifically, heat exchange box 4 is located on the right side of combustion furnace 3. Heat exchange box 4 exchanges heat with the high-temperature gas after complete combustion, avoiding the impact of high-temperature exhaust gas on the surrounding environment and reducing heat waste.

[0035] It is worth adding that the heat exchange box 4 is provided with a second sealing cover 40 on the top, and the heat exchange box 4 is provided with several vertical plates 41 arranged in an alternating manner. Several heat-absorbing fins 410 are provided on both sides of the vertical plates 41. The heat exchange box 4 is provided with an exhaust pipe 44 that communicates with the interior at the right end.

[0036] In this application, the heat-absorbing fins 410 and the vertical plates 41 are integrally formed and fixed in the heat exchange box 4. The heat-absorbing fins 410 are hollow inside. The staggered vertical plates 41 increase the path of the high-temperature exhaust gas in the heat exchange box 4, making full use of the heat in the high-temperature exhaust gas, and finally guiding it out from the discharge pipe 44.

[0037] In addition, the area between the inner wall and the outer wall of the heat exchange box 4 is a heat exchange jacket 45. A drain pipe 42 connected to the heat exchange jacket 45 is provided at the bottom of the front face of the heat exchange box 4, and a water inlet pipe 43 connected to the heat exchange jacket 45 is provided at the top of the front face of the heat exchange box 4.

[0038] In this application, the drain pipe 42, the inlet pipe 43 and the heat exchange box 4 are integrally formed, and the ends of the drain pipe 42 and the inlet pipe 43 are fitted with sealing plugs. The inlet pipe 43 helps to guide external water into the heat exchange jacket 45. The sealing plug on the drain pipe 42 can be removed to facilitate the discharge of the water after heat absorption, reduce heat waste, and avoid the discharge of high-temperature exhaust gas, which could cause burns to the surrounding environment.

[0039] When using the organic waste gas treatment equipment in this embodiment, firstly, the water storage tank 10 with the circulating pump 100 is fixed on the pretreatment cylinder 1 with the air inlet pipe 11. The water storage tank 10 is filled with the corresponding aqueous solution, and the one-way valve 110 is installed in combination with the air inlet pipe 11. The demister 13 is installed at the bottom of the top cover 12, above the spray pipe 101. Then, the limiting plate 23 with the drying cotton 230 is inserted and matched with the slide rail 22. The activated carbon adsorption cotton 242 is inserted and matched with the mounting frame 24. Then, the first sealing cover 20 is fixed in combination with the filter box 2. The filter box 2 is connected to the pretreatment cylinder 1 through the guide pipe 120. The filter box 2 is connected to the combustion furnace 3 through the exhaust pipe 25. The combustion furnace 3 is connected to the heat exchange box 4 through the connecting pipe 30. External water is guided from the water inlet pipe 43 to the heat exchange jacket 45. The inlet pipe 11 is connected to an external organic waste gas pipeline, guiding the waste gas to be treated into the pretreatment cylinder 1. The circulation pump 100 starts, extracting water from the water storage tank 10 and the bottom of the pretreatment cylinder 1, and continuously spraying it from the nozzles on the spray pipe 101 to reduce particulate matter in the organic waste gas. At the same time, the atomized aqueous solution is in full contact with the waste gas. Volatile organic waste gases containing benzene, esters, alcohols, etc., dissolve in the atomized aqueous solution. With the assistance of the demister 13, the atomized water droplets are prevented from being intercepted and prevented from entering through the guide pipe 120. After dust settling, the exhaust gas enters the filter box 2 and undergoes initial drying with the help of three sets of drying cotton 230. Then, it is adsorbed by activated carbon adsorption cotton 242 to reduce the discharge of organic matter. It then enters the combustion furnace 3 for complete combustion and decomposition of hydrocarbon-containing organic matter. Finally, it enters the heat exchange box 4 to absorb the heat of the high-temperature exhaust gas, reducing the direct discharge of high-temperature exhaust gas and preventing it from scalding the surrounding environment. The water that has absorbed the heat is discharged through the drain pipe 42, which helps to collect and utilize the waste gas. Finally, the multi-stage treated exhaust gas is discharged from the discharge pipe 44.

Claims

1. An organic waste gas treatment device, characterized in that, include: The pretreatment cylinder (1) is equipped with a spray chamber inside, which is used to initially settle dust particles and adsorb water-soluble organic waste gas into the incoming waste gas. The spray assembly is installed on the outer wall of the pretreatment cylinder (1). The spray assembly is used to extract the filtered water inside the pretreatment cylinder (1) and spray it in a circulating manner. The filter box (2) is located on the right side of the pretreatment cylinder (1). The filter box (2) dries and adsorbs volatile organic waste gas containing benzene, esters, alcohols and other compounds after dust removal. Combustion furnace (3), which is located on the right side of filter box (2), fully combusts and decomposes the dried and filtered organic waste gas containing carbon and hydrogen into carbon dioxide and water; The heat exchange box (4) is located on the right side of the combustion furnace (3). The heat exchange box (4) exchanges heat with the high-temperature gas after complete combustion, so as to avoid the impact of high-temperature hot exhaust gas on the surrounding environment and reduce heat waste.

2. The organic waste gas treatment equipment according to claim 1, characterized in that: The pretreatment cylinder (1) has an air inlet pipe (11) on its outer wall near the left side that communicates with the internal spray chamber. The air inlet pipe (11) is equipped with a one-way valve (110). The pretreatment cylinder (1) has a top cover (12) on its top. The top cover (12) has a guide pipe (120) that communicates with the inside of the filter box (2). A demister (13) is also provided between the top cover (12) and the pretreatment cylinder (1).

3. The organic waste gas treatment equipment according to claim 1, characterized in that: The spray assembly includes a water storage tank (10) and a circulating pump (100). The water storage tank (10) is located at the bottom of the front end of the pretreatment cylinder (1) and is fixed to the pretreatment cylinder (1) by bolts. The circulating pump (100) is fixed to the water storage tank (10) by bolts. The pump pipe of the circulating pump (100) extends into the water storage tank (10). The water delivery end of the circulating pump (100) is connected to the spray pipe (101). The spray pipe (101) is annular and has several nozzles.

4. The organic waste gas treatment equipment according to claim 1, characterized in that: The filter box (2) is provided with a first sealing cover (20) on the top. The filter box (2) is provided with several sets of slide rails (22) on the left side inside. Each set of slide rails (22) is provided with a limiting plate (23), and the limiting plate (23) is provided with a drying cotton (230) in the middle.

5. The organic waste gas treatment equipment according to claim 4, characterized in that: The filter box (2) has an installation frame (24) at the right end inside. The installation frame (24) has a through groove (240) in the middle. The installation frame (24) has activated carbon adsorption cotton (242) in it. The installation frame (24) has several air holes (241) on its left side.

6. The organic waste gas treatment equipment according to claim 1, characterized in that: A guide pipe (21) is provided between the right end of the filter box (2) and the combustion furnace (3) to facilitate the flow of filtered exhaust gas into the combustion furnace (3). A connecting pipe (30) is provided at the exhaust port at the top of the combustion furnace (3) to communicate with the inside of the heat exchange box (4).

7. The organic waste gas treatment equipment according to claim 1, characterized in that: The heat exchange box (4) is provided with a second sealing cover (40) on the top. The heat exchange box (4) is provided with several vertical plates (41) arranged alternately. Several heat-absorbing fins (410) are provided on both sides of the vertical plates (41). The heat exchange box (4) is provided with an exhaust pipe (44) communicating with the interior at the right end.

8. The organic waste gas treatment equipment according to claim 1, characterized in that: The area between the inner wall and the outer wall of the heat exchange box (4) is a heat exchange jacket (45). A drain pipe (42) communicating with the heat exchange jacket (45) is provided at the bottom of the front end face of the heat exchange box (4). A water inlet pipe (43) communicating with the heat exchange jacket (45) is provided at the top of the front end face of the heat exchange box (4).

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