Organic waste gas high-temperature oxidative degradation processor

Abstract

The invention discloses an organic waste gas high-temperature oxidative degradation treater, which belongs to the technical field of waste gas treatment and comprises a waste gas heating furnace, a heater is arranged at the bottom of the waste gas heating furnace, a limiting retainer ring is arranged in the middle of the waste gas heating furnace, and a catalyst placing device is placed above the limiting retainer ring. A gas inlet bin is fixedly connected to the outer side of the waste gas heating furnace, a plurality of first short pipes fixedly communicate with the bottom of the gas inlet bin, the other ends of the first short pipes fixedly communicate with the interior of the waste gas heating furnace, a gas inlet pipe fixedly communicates with the top of the gas inlet bin, and an exhaust bin is fixedly connected to the outer side of the gas inlet bin. The waste gas subjected to high-temperature oxidation treatment is further treated, the organic waste gas subjected to high-temperature oxidation treatment is subjected to gas washing treatment, fine particles in the tail gas are removed, the degradation effect on organic matter in the organic waste gas is better, and the treated waste gas is cleaner.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, and in particular to a high-temperature oxidation degradation processor for organic waste gas. Background Art

[0002] Organic waste gas refers to waste gas containing organic compounds generated during industrial production. In the process of industrial production, many industries will generate organic waste gas, such as petrochemical, pharmaceutical, printing, coating, electronics, rubber and plastics, etc. In the production process of these industries, the use and volatilization of solvents, by-products of chemical reactions, etc. will generate organic waste gas. These organic compounds are usually volatile organic compounds, including benzene, toluene, xylene, formaldehyde, acetone, ethyl acetate, etc. The emission of organic waste gas has potential hazards to the environment and human health, so it needs to be effectively treated.

[0003] The treatment of organic waste gas is crucial to environmental protection and human health. Untreated organic waste gas discharged into the atmosphere will have a serious impact on air quality and may even pose a potential threat to human health. Therefore, the treatment of organic waste gas is particularly important.

[0004] High-temperature oxidation of organic waste gas is a method for treating organic waste gas. It mainly converts harmful substances in organic waste gas into harmless carbon dioxide and water through high-temperature oxidation. The existing high-temperature oxidation treatment equipment for organic waste gas has high energy consumption, poor treatment effect, and high dust content in the treated waste gas. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a high-temperature oxidation degradation processor for organic waste gas.

[0006] The technical solution of the present invention is: a high-temperature oxidation degradation processor for organic waste gas, comprising a waste gas heating furnace, a heater is provided at the bottom of the waste gas heating furnace, a limit retaining ring is provided in the middle of the waste gas heating furnace, a catalyst placement device is placed above the limit retaining ring, an air intake bin is fixedly connected to the outside of the waste gas heating furnace, a plurality of short tubes one are fixedly connected to the bottom of the air intake bin, the other ends of the plurality of short tubes one are fixedly connected to the inside of the waste gas heating furnace, an air intake pipe is fixedly connected to the top of the air intake bin, an exhaust bin is fixedly connected to the outside of the air intake bin, a plurality of short tubes two are fixedly connected to the middle of the exhaust bin, the other ends of the plurality of short tubes two pass through the inside of the air intake bin and are fixedly connected to the inside of the waste gas heating furnace, and an exhaust pipe is fixedly connected to the bottom of the exhaust bin.

[0007] Furthermore, the heater includes a refractory heating plate, a column is fixedly connected to the middle of the refractory heating plate, a conical baffle is provided on the top of the column, a short rod is fixedly connected between the refractory heating plate and the inner wall of the exhaust gas heating furnace, a heating wire is coiled inside the refractory heating plate, a dust collection groove is provided on the outer side of the refractory heating plate, and the dust collection groove is threadedly connected to the inner wall of the exhaust gas heating furnace.

[0008] Description: The heat generated by the heating wire is used to heat the organic waste gas to achieve high temperature conditions for waste gas oxidation. The dust in the organic waste gas is blocked by the conical baffle and falls into the dust collection tank.

[0009] Furthermore, the catalyst placement device comprises a placement bracket, and a plurality of catalyst filter boxes are fixedly connected in the placement bracket.

[0010] Description: There are multiple catalyst filter boxes, which are placed on a bracket. Under the action of the oxidation catalyst, the organic matter in the organic waste gas is oxidized and degraded.

[0011] Furthermore, the catalyst filter box comprises a lower filter box, an upper filter box is clamped on the top of the lower filter box, an oxidation catalyst is filled between the upper filter box and the lower filter box, and air holes are provided on the upper surface of the upper filter box and the lower surface of the lower filter box.

[0012] Description: This catalyst filter box structure is convenient for replacing the oxidation catalyst.

[0013] Furthermore, a catalyst replacement port is provided on the right side of the exhaust gas heating furnace, and replacement windows aligned with the catalyst replacement port are provided on the right sides of the air inlet bin and the exhaust bin. A connecting plate is fixedly connected to the right side of the placement bracket, and a handle is provided on the right side of the connecting plate. The catalyst placement device is inserted into the exhaust gas heating furnace through the replacement window and the catalyst replacement port.

[0014] Description: The catalyst placement device is inserted into the exhaust gas heating furnace through the replacement window and the catalyst replacement port, which makes it easier to replace the catalyst placement device.

[0015] Furthermore, a tail gas cleaning pool is provided at the end of the exhaust pipe, a microporous aeration pipe is fixedly connected to the bottom of the tail gas cleaning pool, the microporous aeration pipe is connected to the exhaust pipe, and a sewage outlet is provided at the bottom of the tail gas cleaning pool. The tail gas cleaning pool is filled with a sodium bicarbonate solution with a concentration of 20%.

[0016] Description: After the organic matter in the exhaust gas in the exhaust pipe is decomposed, the inorganic dust and participating organic matter contained in the exhaust gas are further processed in the exhaust gas cleaning pool. The acid gas in the organic exhaust gas reacts with water to generate acid liquid, and the acid liquid reacts with the sodium bicarbonate solution to neutralize and generate inorganic salts and carbon dioxide gas.

[0017] Furthermore, the microporous aeration pipe comprises a main pipe, the lower end of which is fixedly connected to a connecting rod for fixedly connecting to the bottom of the tail gas cleaning tank, a plurality of branch pipes are arranged on both sides of the main pipe, and aeration holes are arranged on the outer walls of the branch pipes.

[0018] Description: The exhaust gas in the exhaust pipe is evenly introduced into the exhaust gas cleaning tank through the microporous aeration pipe.

[0019] Furthermore, a protective cover is fixedly connected to the top of the tail gas cleaning tank, and an exhaust hole is provided on the upper surface of the protective cover.

[0020] Note: Use a protective cover to prevent the splash of sodium bicarbonate solution and reduce the volatility of sodium bicarbonate solution.

[0021] Furthermore, a liquid pump is fixedly connected to the bottom of the exhaust gas cleaning pool, a liquid outlet of the liquid pump is fixedly connected to a liquid suction pipe, a water pipe network is fixedly connected above the liquid suction pipe, the water pipe network is fixedly connected to the inner wall of the exhaust gas cleaning pool, and a plurality of water spray heads are installed on the water pipe network.

[0022] Description: The bottom cleaning liquid is sprayed on the top of the tail gas cleaning tank through a liquid pump to further react with the exhaust gas. This method can increase the contact area between the solution and the gas and improve the gas washing effect.

[0023] Furthermore, a mixing chamber is provided on the exhaust pipe, the lower end of the mixing chamber is fixedly connected to an ozone tube, and the end of the ozone tube is fixedly connected to an ozone generator.

[0024] Description: The ozone generated by the ozone generator improves the oxidation capacity of the exhaust gas in the exhaust pipe and further oxidizes and degrades the residual organic matter in the organic waste gas.

[0025] The beneficial effects of the present invention are:

[0026] The present invention performs heat exchange on the waste gas after high-temperature oxidation treatment with the organic waste gas entering the waste gas heating furnace, and recovers the waste heat of the waste gas after high-temperature oxidation treatment, which can save the cost of high-temperature oxidation of the organic waste gas. The present invention further treats the waste gas after high-temperature oxidation treatment, performs gas washing treatment on the organic waste gas after high-temperature oxidation to remove fine particles in the tail gas, further performs oxidation treatment on the organic matter remaining in the tail gas by ozone, and removes it by acidic gas of cleaning liquid. The present invention has better degradation effect on organic matter in the organic waste gas, and the treated waste gas is cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 It is a top view of the exhaust gas heating furnace of the present invention.

[0029] Figure 3 It is a top view of the connection relationship between the refractory heating plate and the exhaust gas heating furnace of the present invention.

[0030] Figure 4 It is a stereoscopic diagram of the catalyst placement device of the present invention.

[0031] Figure 5 It is a stereoscopic view of the catalyst filter box of the present invention.

[0032] Figure 6 It is a right side view of the exhaust bin of the present invention.

[0033] Figure 7 It is a right side view of the waste gas heating furnace of the present invention.

[0034] Figure 8 It is a top view of the structure of the microporous aeration tube of the present invention.

[0035] Fig. 9 It is a three-dimensional view of the protective cover of the present invention.

[0036] Fig.10 It is a structural top view of the water pipe network of the present invention.

[0037] Among them, 1-waste gas heating furnace, 2-heater, 3-limiting retaining ring, 4-catalyst placement device, 5-air intake bin, 51-short pipe 1, 52-air intake pipe, 6-exhaust bin, 61-short pipe 2, 62-exhaust pipe, 21-refractory heating plate, 22-column, 23-conical baffle, 24-short rod, 25-heating wire, 26-dust collection tank, 41-placing bracket, 42-catalyst filter box, 421-lower filter box, 422-upper filter box, 423-oxidation catalyst agent, 424-air vent, 11-catalyst replacement port, 7-replacement window, 43-connecting plate, 44-handle, 8-exhaust cleaning tank, 81-microporous aeration pipe, 82-drainage outlet, 811-main pipeline, 812-connecting rod, 813-branch pipe, 814-aeration hole, 83-protective cover, 831-exhaust hole, 84-liquid pump, 841-liquid pipe, 842-water pipe network, 843-sprinkler head, 9-mixing chamber, 91-ozone tube, 92-ozone generator. DETAILED DESCRIPTION

[0038] Example 1: Figure 1 , Figure 2As shown, a high-temperature oxidation degradation processor for organic waste gas comprises a waste gas heating furnace 1, a heater 2 is provided at the bottom of the waste gas heating furnace 1, a limit retaining ring 3 is provided in the middle of the waste gas heating furnace 1, a catalyst placement device 4 is placed above the limit retaining ring 3, an air intake bin 5 is fixedly connected to the outside of the waste gas heating furnace 1, a plurality of short tubes 51 are fixedly connected to the bottom of the air intake bin 5, the other ends of the plurality of short tubes 51 are fixedly connected to the inside of the waste gas heating furnace 1, an air intake pipe 52 is fixedly connected to the top of the air intake bin 5, an exhaust bin 6 is fixedly connected to the outside of the air intake bin 5, a plurality of short tubes 61 are fixedly connected to the middle of the exhaust bin 6, the other ends of the plurality of short tubes 61 pass through the inside of the air intake bin 5 and are fixedly connected to the inside of the waste gas heating furnace 1, and an exhaust pipe 62 is fixedly connected to the bottom of the exhaust bin 6.

[0039] like Figure 3 As shown, the heater 2 includes a refractory heating plate 21, a column 22 is fixedly connected to the middle of the refractory heating plate 21, a conical baffle 23 is provided on the top of the column 22, a short rod 24 is fixedly connected between the refractory heating plate 21 and the inner wall of the exhaust gas heating furnace 1, a heating wire 25 is coiled inside the refractory heating plate 21, a dust collection groove 26 is provided on the outer side of the refractory heating plate 21, and the dust collection groove 26 is threadedly connected to the inner wall of the exhaust gas heating furnace 1.

[0040] The heat generated by the heater 25 is used to heat the organic waste gas to reach a high temperature condition for waste gas oxidation, and the dust in the organic waste gas is blocked by the conical baffle 23 and falls into the dust collection tank 26.

[0041] like Figure 4 As shown, the catalyst placement device 4 includes a placement bracket 41 , and a plurality of catalyst filter boxes 42 are fixedly connected inside the placement bracket 41 .

[0042] There are multiple catalyst filter boxes 42 , and the catalyst filter boxes 42 are placed on the placement bracket 41 . Under the action of the oxidation catalyst 423 , the organic matter in the organic waste gas is oxidized and degraded.

[0043] like Figure 5 As shown, the catalyst filter box 42 includes a lower filter box 421, an upper filter box 422 is clamped on the top of the lower filter box 421, an oxidation catalyst 423 is filled between the upper filter box 422 and the lower filter box 421, and air holes 424 are provided on the upper surface of the upper filter box 422 and the lower surface of the lower filter box 421.

[0044] This catalyst filter box 42 structure makes it easy to replace the oxidation catalyst 423.

[0045] Example 2: Figure 6 , Figure 7As shown, a catalyst replacement port 11 is provided on the right side of the exhaust gas heating furnace 1, a replacement window 7 aligned with the catalyst replacement port 11 is provided on the right side of the air inlet bin 5 and the exhaust bin 6, a connecting plate 43 is fixedly connected to the right side of the placement bracket 41, a handle 44 is provided on the right side of the connecting plate 43, and the catalyst placement device 4 is inserted into the exhaust gas heating furnace 1 through the replacement window 7 and the catalyst replacement port 11.

[0046] Compared with Example 1, in Example 2, the catalyst placement device 4 is inserted into the exhaust gas heating furnace 1 through the replacement window 7 and the catalyst replacement port 11, which makes it easier to replace the catalyst placement device 4.

[0047] Embodiment 3: A tail gas cleaning pool 8 is provided at the end of the exhaust pipe 62, a microporous aeration pipe 81 is fixedly connected to the bottom of the tail gas cleaning pool 8, the microporous aeration pipe 81 is connected to the exhaust pipe 62, and a sewage outlet 82 is provided at the bottom of the tail gas cleaning pool 8. The tail gas cleaning pool is filled with a sodium bicarbonate solution with a concentration of 20%.

[0048] like Figure 8 As shown, the microporous aeration pipe 81 includes a main pipe 811, the lower end of which is fixedly connected to a connecting rod 812 for fixed connection to the bottom of the exhaust cleaning tank 8, and a plurality of branch pipes 813 are arranged on both sides of the main pipe 811, and aeration holes 814 are arranged on the outer wall of the branch pipe 813.

[0049] Compared with Example 2, in Example 3, after the organic matter in the exhaust gas in the exhaust pipe 62 is decomposed, the inorganic dust and organic matter contained in the exhaust gas are further processed in the exhaust gas cleaning tank, and the acid gas in the organic exhaust gas reacts with water to generate acid liquid, and the acid liquid reacts with the sodium bicarbonate solution to generate inorganic salts and carbon dioxide gas. The exhaust gas in the exhaust pipe 62 is uniformly passed into the exhaust gas cleaning tank 8 through the microporous aeration pipe 81.

[0050] Example 4: Fig. 9 As shown, a protective cover 83 is fixedly connected to the top of the tail gas cleaning pool 8, and an exhaust hole 831 is provided on the upper surface of the protective cover 83.

[0051] Compared with Example 3, Example 4 uses a protective cover 83 to prevent the splashing of the sodium bicarbonate solution and reduce the volatilization amount of the sodium bicarbonate solution.

[0052] Embodiment 5:

[0053] like Fig.10 As shown, a liquid pump 84 is fixedly connected to the bottom of the exhaust gas cleaning pool 8, a liquid outlet of the liquid pump 84 is fixedly connected to a liquid extraction pipe 841, a water pipe network 842 is fixedly connected above the liquid extraction pipe 841, the water pipe network 842 is fixedly connected to the inner wall of the exhaust gas cleaning pool 8, and a plurality of water spray heads 843 are installed on the water pipe network 842.

[0054] Compared with Example 4, in Example 5, the bottom cleaning liquid is sprayed above the tail gas cleaning pool by the liquid pump 84 to further react with the exhaust gas. This method can increase the contact area between the solution and the gas and improve the gas washing effect.

[0055] Embodiment 6: A mixing chamber 9 is provided on the exhaust pipe 62 , the lower end of the mixing chamber is fixedly connected to an ozone tube 91 , and the end of the ozone tube 91 is fixedly connected to an ozone generator 92 .

[0056] Compared with Example 5, Example 6 improves the oxidation capacity of the exhaust gas in the exhaust pipe 62 through the ozone generated by the ozone generator 92, and further oxidizes and degrades the organic matter remaining in the organic exhaust gas.

[0057] The working method of the high-temperature oxidation degradation processor of organic waste gas in the above-mentioned embodiment 6 comprises the following steps:

[0058] S1, the organic waste gas enters the air intake bin 5 from the air intake pipe 52 and exchanges heat with the outer wall of the waste gas heating furnace 1 and the exhaust bin 6 to preheat the organic waste gas. The heating wire 25 in the heater 2 generates heat to heat the organic waste gas. Under the action of the rising high-temperature organic waste gas and the oxidation catalyst 423 in the catalyst placement device 4, the organic matter in the organic waste gas undergoes an oxidation reaction, and the macromolecular organic pollutants are oxidized and degraded into inorganic matter;

[0059] S2, the organic waste gas is treated by the oxidation catalyst 423 and enters the exhaust chamber 6 through the short pipe 2 61, and is finally discharged through the exhaust pipe 62. The catalyst placement device 4 is placed in the exhaust gas heating furnace 1 through the catalyst replacement port 11 and the replacement window 7;

[0060] S3. The treated organic waste gas is mixed with the ozone generated by the ozone generator 92 in the mixing chamber 9. The ozone further oxidizes and degrades the residual organic matter in the organic waste gas. The mixed gas is passed into the tail gas cleaning tank 8 through the microporous aeration pipe 81. The suspended fine particles and acidic gases in the mixed gas are removed under the action of the cleaning liquid. Finally, the treated clean gas is discharged through the exhaust hole 831 on the protective cover 83.

[0061] The heating wire 25, the liquid pump 84 and the ozone generator 92 used in the above embodiments are all commercially available products. As long as they can achieve the functions of the present invention, those skilled in the art can choose to use them according to common sense, and no special limitation is made here.

Claims

1. A high temperature oxidation degradation processor for organic waste gas, characterized in that: The invention comprises an exhaust gas heating furnace (1), wherein a heater (2) is provided at the bottom of the exhaust gas heating furnace (1), a limit retaining ring (3) is provided in the middle of the exhaust gas heating furnace (1), a catalyst placement device (4) is placed above the limit retaining ring (3), an air intake bin (5) is fixedly connected to the outside of the exhaust gas heating furnace (1), a plurality of short tubes (51) are fixedly connected to the bottom of the exhaust gas heating furnace (5), the other ends of the plurality of short tubes (51) are fixedly connected to the inside of the exhaust gas heating furnace (1), an air intake pipe (52) is fixedly connected to the top of the exhaust gas heating furnace (5), an exhaust bin (6) is fixedly connected to the outside of the exhaust bin (5), a plurality of short tubes (61) are fixedly connected to the middle of the exhaust bin (6), the other ends of the plurality of short tubes (61) pass through the inside of the exhaust bin (5) and are fixedly connected to the inside of the exhaust gas heating furnace (1), and an exhaust pipe (62) is fixedly connected to the bottom of the exhaust bin (6).

2. The high-temperature oxidation degradation processor for organic waste gas according to claim 1, characterized in that: The heater (2) comprises a refractory heating plate (21), a column (22) is fixedly connected to the middle of the refractory heating plate (21), a conical baffle (23) is provided on the top of the column (22), a short rod (24) is fixedly connected between the refractory heating plate (21) and the inner wall of the exhaust gas heating furnace (1), a heating wire (25) is coiled inside the refractory heating plate (21), a dust collection groove (26) is provided on the outer side of the refractory heating plate (21), and the dust collection groove (26) is threadedly connected to the inner wall of the exhaust gas heating furnace (1).

3. The high-temperature oxidation degradation processor for organic waste gas according to claim 2, characterized in that: The catalyst placement device (4) comprises a placement bracket (41), and a plurality of catalyst filter boxes (42) are fixedly connected inside the placement bracket (41).

4. The high-temperature oxidation degradation processor for organic waste gas according to claim 3, characterized in that: The catalyst filter box (42) comprises a lower filter box (421), an upper filter box (422) is clamped on the upper side of the lower filter box (421), an oxidation catalyst (423) is filled between the upper filter box (422) and the lower filter box (421), and air holes (424) are provided on the upper surface of the upper filter box (422) and the lower surface of the lower filter box (421).

5. The high-temperature oxidation degradation processor for organic waste gas according to claim 4, characterized in that: The right side of the exhaust gas heating furnace (1) is provided with a catalyst replacement port (11), the right sides of the air inlet bin (5) and the exhaust bin (6) are provided with replacement windows (7) aligned with the catalyst replacement port (11), the right side of the placement bracket (41) is fixedly connected with a connecting plate (43), the right side of the connecting plate (43) is provided with a handle (44), and the catalyst placement device (4) is inserted into the exhaust gas heating furnace (1) through the replacement window (7) and the catalyst replacement port (11).

6. The high-temperature oxidation degradation processor for organic waste gas according to claim 1, characterized in that: An exhaust gas cleaning pool (8) is provided at the end of the exhaust pipe (62), a microporous aeration pipe (81) is fixedly connected to the bottom of the exhaust gas cleaning pool (8), the microporous aeration pipe (81) is communicated with the exhaust pipe (62), and a sewage outlet (82) is provided at the bottom of the exhaust gas cleaning pool (8).

7. The high-temperature oxidation degradation processor for organic waste gas according to claim 6, characterized in that: The microporous aeration pipe (81) comprises a main pipe (811), the lower end of the main pipe (811) is fixedly connected to a connecting rod (812) for being fixedly connected to the bottom of the tail gas cleaning tank (8), a plurality of branch pipes (813) are arranged on both sides of the main pipe (811), and aeration holes (814) are arranged on the outer walls of the branch pipes (813).

8. The high-temperature oxidation degradation processor for organic waste gas according to claim 6, characterized in that: A protective cover (83) is fixedly connected to the top of the tail gas cleaning pool (8), and an exhaust hole (831) is provided on the upper surface of the protective cover (83).

9. The high-temperature oxidation degradation processor for organic waste gas according to claim 6, characterized in that: A liquid extraction pump (84) is fixedly connected to the bottom of the tail gas cleaning pool (8); a liquid extraction pipe (841) is fixedly connected to the liquid outlet of the liquid extraction pump (84); a water pipe network (842) is fixedly connected to the top of the liquid extraction pipe (841); the water pipe network (842) is fixedly connected to the inner wall of the tail gas cleaning pool (8); and a plurality of water spray heads (843) are installed on the water pipe network (842).

10. The high-temperature oxidation degradation processor for organic waste gas according to claim 6, characterized in that: The bottom of the tail gas cleaning pool (8) is fixedly connected to a liquid extraction pump (84), the liquid outlet of the liquid extraction pump (84) is fixedly connected to a liquid extraction pipe (841), and the top of the liquid extraction pipe (841) is fixedly connected to a water pipe network (842).

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