Catalytic combustion device for organic waste gas treatment
By using multi-layer filtration components and cylinder-driven feeding components, the problem of impurity accumulation in the catalytic combustion device is solved, achieving efficient purification of waste gas and protection of the catalyst, thus improving treatment efficiency and stability.
Patent Information
- Application Number
- CN202423210469.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing catalytic combustion devices for treating organic waste gas lack effective impurity filtration measures when waste gas enters the catalytic combustion unit, resulting in the accumulation of impurities on the catalyst surface, clogging pores, reducing catalyst activity and lifespan, and affecting treatment efficiency.
The system employs a multi-layer filtration assembly, including a coarse filter, a fine filter, fiber filter paper, and an activated carbon layer, combined with a cylinder-driven feeding assembly, to achieve multi-stage filtration of exhaust gas and quantitative addition of catalyst, ensuring the smooth progress of the catalytic reaction.
It effectively removes large, medium, and small impurities from waste gas, protects the catalyst, improves treatment efficiency and stability, and ensures the efficient conduction of catalytic reactions.
Smart Images
Figure CN223691066U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to waste gas treatment technical field especially, relates to a kind of catalytic combustion device for organic waste gas treatment. BACKGROUND
[0002] With the acceleration of industrialization, various industrial production activities have generated a large amount of organic waste gas, which, if not effectively treated and directly discharged into the atmosphere, can cause serious harm to the environment and human health, such as the formation of photochemical smog, acid rain, etc., harm air quality and the living environment of plants and animals, etc. Therefore, efficient treatment of organic waste gas has become an important issue in the field of environmental protection. Catalytic combustion devices, as a widely used equipment in organic waste gas treatment, play a key role in controlling organic waste gas pollution. The basic principle is to use catalysts to reduce the activation energy required for the oxidation reaction of organic matter in organic waste gas with oxygen, so that organic matter can be efficiently oxidized and decomposed into harmless carbon dioxide and water at relatively low temperatures. This treatment method has the advantages of high treatment efficiency and relatively low energy consumption, and is adopted by many industrial enterprises.
[0003] Traditional waste gas treatment devices contain multiple key parts. The air inlet system is composed of an air inlet pipeline and a fan. The fan sucks waste gas into the air inlet device according to the principle of fluid mechanics. The core components of the catalytic combustion unit are catalyst bed and burner. The catalyst bed carries platinum, palladium, and other noble metals or metal oxides as catalysts to accelerate the oxidation reaction of organic matter. The burner provides heat to raise the temperature of the waste gas to the ignition temperature. Then, under the action of the catalyst, the waste gas is purified. The exhaust pipeline and fan of the exhaust system push the standard exhaust gas out according to the principle of fluid mechanics, maintaining air pressure balance and normal processing flow.
[0004] However, the existing catalytic combustion device for organic waste gas treatment has some problems to be solved in actual operation. One of the outstanding problems is that when the waste gas enters the catalytic combustion unit, a large amount of dust, particulate matter, and trace components that are harmful to the catalyst in the waste gas will enter the catalytic combustion unit without any hindrance due to the lack of effective impurity filtering measures. Once these impurities enter, they will gradually accumulate on the surface of the catalyst, on the one hand, blocking the pores of the catalyst, so that the waste gas cannot fully contact with the catalyst, which seriously reduces the activity of the catalyst. On the other hand, some impurities will react with the catalyst, causing catalyst poisoning and deactivation. This not only greatly shortens the service life of the catalyst and increases the cost of frequent replacement of the catalyst for enterprises, but also affects the treatment efficiency of the entire device, making it impossible to continuously and stably achieve efficient purification and treatment of organic waste gas. Therefore, a catalytic combustion device for organic waste gas treatment is proposed to solve the above problems. SUMMARY
[0005] In order to make up for the above shortcomings, the utility model provides a catalytic combustion device for organic waste gas treatment, aims at improving the problem that the traditional equipment in prior art lacks perfect and effective impurity filtering measures before waste gas enters the catalytic combustion unit, leading to many adverse effects of catalyst and the whole treatment process.
[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:
[0007] A catalytic combustion device for organic waste gas treatment, including support frame, the support frame inside fixedly connected with heater, the support frame top fixedly connected with the reaction tank, the reaction tank top fixedly connected with the top cover, the reaction tank inside is provided with filter assembly, the filter assembly is used for removing the impurity in waste gas;
[0008] The filter assembly includes the air inlet pipe, one end of the air inlet pipe is fixedly connected in the reaction tank, the air inlet pipe inner wall is fixedly connected with the coarse filter screen, one end of the coarse filter screen is fixedly connected with the fine filter screen, one end of the fine filter screen is fixedly connected with the fiber filter paper, one end of the fiber filter paper is provided with the activated carbon layer, the air inlet pipe bottom is fixedly connected with the fan, the reaction tank inside is provided with the dosing assembly, the dosing assembly is used for adding catalyst in the reaction process;
[0009] As a further description of the above technical scheme:
[0010] The dosing assembly includes the sliding frame and the sliding plate, both sides of the sliding frame are fixedly connected on the reaction tank inner wall, and the sliding plate is slidingly connected in the sliding frame;
[0011] As a further description of the above technical scheme:
[0012] The dosing assembly includes the sliding frame and the sliding plate, both sides of the sliding frame are fixedly connected on the reaction tank inner wall, and the sliding plate is slidingly connected in the sliding frame;
[0013] As a further description of the above technical scheme:
[0014] The upper surface of the fixed frame is fixedly connected with the air cylinder, and the output end of the air cylinder is fixedly connected with the transmission block.
[0015] As a further description of the above technical scheme:
[0016] The transmission block is fixedly connected on the outer wall of the fan, and the side wall of the transmission block is rotatably connected with the bottom cover.
[0017] As a further description of the above technical scheme:
[0018] The bottom cover is attached to the storage tank, and the lower surface of the bottom cover is attached to the support plate.
[0019] As a further description of the above technical solutions:
[0020] The flow guide pipe is internally and slidably connected with the sliding plate, and the top end of the flow guide pipe is fixedly connected with a feeding hopper.
[0021] The utility model has the following beneficial effects:
[0022] 1. In the utility model, the coarse filter screen can preliminarily filter large-particle impurities in waste gas, the fine filter screen can filter relatively small impurities in waste gas, and the fiber filter paper and the activated carbon layer can simultaneously adsorb chemical dust, metal dust and odor gas in waste gas, so that the effect of effective and rapid filtration is realized.
[0023] 2. In the utility model, the air cylinder drives the storage tank to slide in the sliding frame, further drives the bottom cover to slide on the upper surface of the supporting plate, and when the storage tank completely separates from the supporting plate, the bottom cover is automatically opened under the action of gravity, so that the effect of rapidly and quantitatively discharging the catalyst is realized. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 A three-dimensional schematic view of the catalytic combustion device for organic waste gas treatment is provided for the utility model;
[0025] Figure 2 A structure schematic view of the gas inlet pipe section of the catalytic combustion device for organic waste gas treatment is provided for the utility model;
[0026] Figure 3 A structure schematic view of the reaction tank section of the catalytic combustion device for organic waste gas treatment is provided for the utility model;
[0027] Figure 4 A structure schematic view of the inside of the reaction tank of the catalytic combustion device for organic waste gas treatment is provided for the utility model.
[0028] LEGEND:
[0029] 1. Supporting frame; 2. Heater; 3. Reaction tank; 4. Top cover; 5. Gas inlet pipe; 6. Activated carbon layer; 7. Fiber filter paper; 8. Fine filter screen; 9. Coarse filter screen; 10. Fan; 11. Sliding frame; 12. Sliding plate; 13. Supporting plate; 14. Fixed frame; 15. Air cylinder; 16. Transmission block; 17. Bottom cover; 18. Storage tank; 19. Flow guide pipe; 20. Feeding hopper. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0031] With reference to Figure 1 and Figure 2 An embodiment provided by the utility model: a catalytic combustion device for organic waste gas treatment, comprising a support frame 1, a heater 2 is fixedly connected inside the support frame 1, the heater 2 is used to heat waste gas to reach the minimum temperature required for catalytic reaction, so as to promote the smooth progress of the catalytic combustion process, a reaction tank 3 is fixedly connected at the top of the support frame 1, the inside of the reaction tank 3 is the core area of waste gas treatment, responsible for the reaction of waste gas and catalyst to generate harmless gas, a top cover 4 is fixedly connected at the top of the reaction tank 3, the top cover 4 is used to close the upper part of the reaction tank 3, prevent external substances from entering, at the same time, it is also convenient for the management and maintenance of the inside of the reaction tank 3, a filtering assembly is arranged inside the reaction tank 3, the filtering assembly is used to remove impurities in waste gas;
[0032] The filtering assembly comprises an air inlet pipe 5, one end of the air inlet pipe 5 is fixedly connected inside the reaction tank 3, a coarse filter screen 9 is fixedly connected to the inner wall of the air inlet pipe 5, the coarse filter screen 9 is used to preliminarily filter large-particle impurities in waste gas, avoiding the blockage of the fine filter screen 8, one end of the coarse filter screen 9 is fixedly connected to a fine filter screen 8, the fine filter screen 8 further filters small particles in waste gas, ensuring that the residual particulate matters in waste gas do not affect the subsequent catalytic reaction process, one end of the fine filter screen 8 is fixedly connected to a fiber filter paper 7, the fiber filter paper 7 can effectively capture small particulate matters and impurities in air, providing more fine filtration for waste gas, one end of the fiber filter paper 7 is provided with an activated carbon layer 6, the activated carbon layer 6 has strong adsorption capacity for organic matters and part of harmful gas in waste gas, helping to further purify harmful components in waste gas, a fan 10 is fixedly connected to the bottom end of the air inlet pipe 5, a discharging assembly is arranged inside the reaction tank 3, the discharging assembly is used to add catalyst during the reaction process.
[0033] Specifically, when the organic waste gas contains dust, sand, metal debris, fibers and other types of particulate matter, these particulate matters will cause many problems if they directly enter the subsequent treatment equipment. The waste gas is effectively sucked into the device through the fan 10. After entering the inlet pipe 5, it is first subjected to preliminary filtration through the coarse filter screen 9. The main function of the coarse filter screen 9 is to intercept the larger particle size particulate matter in the waste gas, such as dust, sand and fibers. These particulate matters are relatively large and can easily cause wear or blockage of the equipment. Therefore, they need to be removed before entering the subsequent treatment link. The preliminary filtration of the coarse filter screen 9 can reduce the burden on the subsequent filter core and catalyst, thereby improving the working efficiency of the entire system. After filtration through the coarse filter screen 9, the waste gas continues to flow and is subjected to a second filtration through the fine filter screen 8. The function of the fine filter screen 8 is to further remove the medium particle size particulate matter in the waste gas and some fine impurities that cannot be completely removed by the coarse filter screen 9. At this time, the particle size of the impurities in the waste gas is relatively small, and the amount is relatively small. The fine filter screen 8 can effectively ensure the cleanliness of the waste gas and provide protection for the next more delicate treatment. Subsequently, the waste gas enters the filter layer composed of the fiber filter paper 7. The unique structure of the fiber filter paper 7 can adsorb extremely small particulate matter in the waste gas, especially those tiny impurities that are harmful to the catalyst in the subsequent catalytic combustion treatment link. In addition, the porous structure of the activated carbon layer 6 has strong adsorption capacity and can effectively remove some particulate matter, volatile organic compounds and odor substances and other harmful gases in the waste gas, further purifying the waste gas and preventing harmful components from entering the subsequent treatment system, thereby ensuring the efficiency and safety of the catalytic combustion treatment process.
[0034] With reference to Figure 3 and Figure 4 The discharging assembly includes a sliding frame 11 and a sliding plate 12. The sliding frame 11 is fixedly connected to the inner wall of the reaction tank 3 on both sides. The sliding frame 11 is fixedly connected to the inner wall of the reaction tank 3 on both sides through a stable connection method, which ensures that the entire assembly can operate stably during use and withstand certain working load and pressure. The sliding plate 12 is slidingly connected inside the sliding frame 11. The sliding connection allows the sliding plate 12 to move smoothly and flexibly on the inner wall of the reaction tank 3, thereby achieving accurate control and conveying of the material. The inner wall of the reaction tank 3 is fixedly connected with a fixed frame 14. The sliding plate 12 is fixedly connected with a storage tank 18 inside. The storage tank 18 is used to store the catalyst and quantitatively convey the catalyst to the designated position. The bottom of the sliding frame 11 is fixedly connected with a support plate 13, which is used in cooperation with the bottom cover 17 to achieve rapid discharging. The upper surface of the fixed frame 14 is fixedly connected with a gas cylinder 15. The output end of the gas cylinder 15 is fixedly connected with a transmission block 16.
[0035] Specifically, when the composition of the organic waste gas changes significantly, different organic pollutants have different requirements for catalytic oxidation reactions, and the required amount of catalyst also differs. The cylinder 15 drives the storage tank 18 and the sliding plate 12 to slide inside the sliding frame 11. The cylinder 15 provides power to move the storage tank 18 forward and backward. When the storage tank 18 slides forward, the bottom cover 17 moves synchronously. Since the bottom cover 17 is fixedly connected to the storage tank 18, the displacement of the storage tank 18 drives the bottom cover 17 to slide. However, the support plate 13 is fixed and located below the storage tank 18. When the storage tank 18 slides out of the upper surface of the support plate 13, the bottom cover 17 loses the support of the support plate 13 and automatically opens due to the gravity of the catalyst.
[0036] Referring to Figure 3 and Figure 4 The transmission block 16 is fixedly connected to the outer wall of the fan 10. The bottom cover 17 is rotatably connected to the side wall of the transmission block 16. The bottom cover 17 is in close contact with the storage tank 18. The bottom cover 17 is tightly attached to the bottom end of the storage tank 18, forming a sealed interface to prevent material leakage between the bottom cover 17 and the storage tank 18. This effectively controls the flow and storage of the catalyst. The bottom surface of the bottom cover 17 is in close contact with the support plate 13, which provides additional stability to the bottom cover 17 and ensures that the bottom cover 17 and other components do not shake or displace unnecessarily during operation. The opening and closing movement of the bottom cover 17 is also limited. The sliding plate 12 is slidably connected to the inner surface of the guide pipe 19. The top end of the guide pipe 19 is fixedly connected to the feed hopper 20. The feed hopper 20 is designed to guide the material smoothly from the top to the guide pipe 19, avoiding potential blockage or material accumulation.
[0037] Specifically, the catalyst in the storage tank 18 is released under the action of gravity and accurately added to the reaction device, ensuring accurate addition of the catalyst and allowing precise control of the amount of catalyst added as needed, thereby optimizing the effect of the catalytic oxidation reaction. The cylinder 15 not only drives the storage tank 18 to slide forward and backward, but also returns to the initial position after the catalyst is added through its return action. When the storage tank 18 is retracted, the support plate 13 comes into contact with the bottom cover 17 again. Through the contact force between the bottom cover 17 and the support plate 13, a pushing force is generated to push the support plate 13 back to the initial state. This process realizes the cooperation between the storage tank 18 and the support plate 13, ensuring that the amount of catalyst added each time is accurate and consistent.
[0038] Working principle: when using the device, the exhaust gas is sucked into the device by the fan 10, and when passing through the inside of the air inlet pipe 5, the exhaust gas can be preliminarily filtered by the coarse filter screen 9, mainly used to intercept the larger particle size particles in the exhaust gas, such as dust, sand, fibers, etc., after preliminary filtration by the coarse filter screen 9, further filter the medium particle size particles in the exhaust gas and some fine impurities that cannot be completely removed by the coarse filter screen 9, the fiber filter paper 7 can adsorb the extremely fine particles in the exhaust gas, especially those tiny impurities that are toxic to the catalyst in the subsequent processing link, such as metal dust, chemical particles, etc., at the same time, by using the porous structure of the activated carbon layer 6, part of the particles and volatile organic compounds, odor substances in the exhaust gas can be adsorbed, so as to comprehensively and effectively filter all kinds of impurities in the organic exhaust gas, provide high-quality inlet conditions for subsequent catalytic combustion treatment, protect the catalyst, improve the overall processing efficiency and stability of the device, at the same time, the storage tank 18 and the sliding plate 12 can be driven by the output end of the air cylinder 15 to slide in the sliding frame 11, when the storage tank 18 slides forward, the bottom cover 17 will move synchronously with it, since the supporting plate 13 is fixed, when the storage tank 18 slides out of the upper surface of the supporting plate 13, the bottom cover 17 at the bottom will automatically open due to the lack of support of the supporting plate 13 and the gravity of the catalyst, so as to add an appropriate amount of catalyst to the reaction device, when the storage tank 18 is driven by the air cylinder 15 to return to the original position, the supporting plate 13 is pushed to the initial state by the contact between the supporting plate 13 and the bottom cover 17, so as to realize the quantitative addition of catalyst by cooperating with the supporting plate 13, so that the catalytic oxidation reaction can achieve the best effect under different organic exhaust gas composition, concentration and flow conditions, etc.
[0039] Finally, it should be pointed out that: the above only for preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.
Claims
1. A catalytic combustion device for organic exhaust gas treatment comprising a support frame (1), characterized in that: The support frame (1) is internally fixedly connected with a heater (2), the top of the support frame (1) is fixedly connected with a reaction tank (3), the top of the reaction tank (3) is fixedly connected with a top cover (4), the reaction tank (3) is internally provided with a filter assembly, and the filter assembly is used for removing impurities in waste gas; The filter assembly comprises an air inlet pipe (5), one end of the air inlet pipe (5) is fixedly connected in the reaction tank (3), the inner wall of the air inlet pipe (5) is fixedly connected with a coarse filter screen (9), one end of the coarse filter screen (9) is fixedly connected with a fine filter screen (8), one end of the fine filter screen (8) is fixedly connected with a fiber filter paper (7), one end of the fiber filter paper (7) is provided with an activated carbon layer (6), and the bottom end of the air inlet pipe (5) is fixedly connected with a fan (10); the reaction tank (3) is internally provided with a dosing assembly, and the dosing assembly is used for adding a catalyst during a reaction process.
2. The catalytic combustion device for organic waste gas treatment according to claim 1, characterized in that: The dosing assembly comprises a sliding frame (11) and a sliding plate (12), the sliding frame (11) is fixedly connected to the inner wall of the reaction tank (3) on both sides, and the sliding plate (12) is slidingly connected in the sliding frame (11).
3. The catalytic combustion device for organic waste gas treatment according to claim 2, characterized in that: The inner wall of the reaction tank (3) is fixedly connected with a fixed frame (14), the sliding plate (12) is fixedly connected with a storage tank (18) in the inside, and the bottom of the sliding frame (11) is fixedly connected with a support plate (13).
4. The catalytic combustion device for organic exhaust treatment according to claim 3, characterized in that: The upper surface of the fixed frame (14) is fixedly connected with an air cylinder (15), and the output end of the air cylinder (15) is fixedly connected with a transmission block (16).
5. The catalytic combustion device for organic exhaust treatment according to claim 4, characterized in that: The transmission block (16) is fixedly connected to the outer wall of the fan (10), and the side wall of the transmission block (16) is rotatably connected with a bottom cover (17).
6. The catalytic combustion device for organic exhaust treatment according to claim 5, characterized in that: The bottom cover (17) is attached to the storage tank (18), and the lower surface of the bottom cover (17) is attached to the support plate (13).
7. The catalytic combustion device for organic exhaust treatment according to claim 3, characterized in that: The sliding plate (12) is slidingly connected with a flow guide pipe (19) in the inside, and the top end of the flow guide pipe (19) is fixedly connected with a feeding hopper (20).