Industrial waste gas multistage catalytic oxidation purification device
By designing a combination of dust removal box, heating catalytic box, spray assembly and diversion assembly, this invention solves many problems of existing multi-stage catalytic oxidation purification devices for industrial waste gas, achieving high-efficiency dust removal, water circulation and compatibility with multiple catalysts, thus improving purification efficiency and economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 金广恒环保技术(南京)股份有限公司
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-21
AI Technical Summary
Existing multi-stage catalytic oxidation purification devices for industrial waste gas suffer from problems such as easy catalyst poisoning and deactivation, insufficient synergy of multi-stage reactions, high energy consumption, poor adaptability to complex waste gases, imperfect control of by-products, and lag in response to dynamic operating conditions, resulting in insufficient treatment efficiency and economy.
A multi-stage purification device was designed, comprising a dust removal box, a heating catalytic box, a spray assembly, a diversion assembly, and a catalytic assembly. The dust removal assembly and the spray assembly work together to achieve efficient dust removal and water circulation. The diversion assembly and the catalytic assembly work together to achieve compatibility with various catalysts. The mounting plate and the diversion plate enable the device to be compatible with the purification treatment of different industrial waste gases.
It achieves efficient dust removal, water recycling, and compatibility with multiple catalysts, improving the treatment efficiency and economy of the purification device, simplifying the operation process, and solving many problems of traditional devices.
Smart Images
Figure CN224524450U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of environmental protection technology, specifically relating to a multi-stage catalytic oxidation purification device for industrial waste gas. Background Technology
[0002] Multi-stage catalytic oxidation purification technology for industrial waste gas is a highly efficient waste gas treatment solution developed from traditional single-stage catalytic oxidation. It is mainly designed to address the complex component treatment needs of emissions from industries such as chemical, coating, and pharmaceutical manufacturing. As environmental standards become increasingly stringent, early single-stage catalytic devices are no longer sufficient due to low conversion efficiency and easy catalyst poisoning. Multi-stage catalytic technology significantly improves purification efficiency through staged oxidation and optimized reaction conditions. This technology uses a pre-treatment stage with low-temperature catalytic oxidation of easily degradable components, followed by a high-temperature catalytic oxidation stage for deep oxidation of recalcitrant pollutants. Combined with heat recovery to reduce operating costs, it has now become the mainstream solution for treating high-concentration, multi-component industrial waste gas.
[0003] Existing multi-stage catalytic oxidation purification devices for industrial waste gas still suffer from problems in practical applications, such as catalyst poisoning and deactivation (e.g., sulfur and chlorine compounds leading to decreased activity), insufficient synergy in multi-stage reactions, poor matching of inter-stage temperature and space velocity, high energy consumption (large energy consumption for preheating low-concentration waste gas), poor adaptability to complex waste gases (multi-component interference with catalytic efficiency), imperfect control of byproducts (e.g., risk of dioxin formation), and lag in dynamic operating condition response (untimely adjustment when waste gas concentration fluctuates). These issues restrict further improvement in treatment efficiency and economy. Therefore, a multi-stage catalytic oxidation purification device for industrial waste gas has been developed. Utility Model Content
[0004] The purpose of this invention is to provide a multi-stage catalytic oxidation purification device for industrial waste gas, which aims to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A multi-stage catalytic oxidation purification device for industrial waste gas includes, The dust collection box, the heating catalytic box fixedly connected to the side wall of the dust collection box, the cylinder fixedly installed on the surface of the heating catalytic box, the dust collection assembly disposed in the inner cavity of the dust collection box, the spray assembly fixedly connected to the surface of the dust collection box, the diversion assembly movably connected to the inner wall of the heating catalytic box, and the catalytic assembly fixedly installed on the inner wall of the heating catalytic box. The dust removal assembly includes an air inlet fixedly connected to the side wall of the dust removal box, a first baffle plate fixedly installed on the inner wall of the dust removal box, a second baffle plate fixedly connected to the inner wall of the dust removal box, a third baffle plate disposed on the inner wall of the dust removal box, and a drain outlet opened at the bottom of the dust removal box.
[0006] As a preferred embodiment of the present invention, the spray assembly includes a filter bucket adapted to be connected to the inner wall of the drain outlet, and a filter plate fixedly installed on the inner wall of the filter bucket.
[0007] As a preferred embodiment of the present invention, the spray assembly further includes a water storage tank disposed on the surface of the filter bucket, and a water pump fixedly connected to the side wall of the water storage tank.
[0008] As a preferred embodiment of the present invention, the spray assembly further includes a pipe fixedly connected to the water pump outlet, and a spray head fixedly installed at the end of the pipe.
[0009] As a preferred embodiment of this utility model, the flow divider assembly includes a drive rod fixedly installed at the cylinder output end, a rocker arm slidably connected to the inner wall of the drive rod, a mounting plate fixedly installed on the inner wall of the heating catalytic converter, and a flow divider plate movably connected to the end of the mounting plate.
[0010] As a preferred embodiment of the present invention, the catalytic assembly includes a desiccant plate fixedly installed on the inner wall of the heated catalytic chamber, an activated carbon adsorption plate fixedly connected to the inner wall of the heated catalytic chamber, and a zeolite plate disposed on the inner wall of the heated catalytic chamber.
[0011] As a preferred embodiment of the present invention, the catalytic assembly further includes a heating wire fixedly installed on the inner wall of the heated catalytic chamber, a catalytic plate fixedly connected to the side wall of the mounting plate, and an outlet disposed on the side wall of the heated catalytic chamber.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the combined use of the dust removal component and the spray component achieves efficient dust removal and water circulation for industrial waste gas; the combined use of the diversion component and the catalytic component enables the placement of multiple catalysts, which is not possible in existing purification devices; the installation plate and the diversion plate allow the purification device to be compatible with the alternating purification of two different industrial waste gases. The device is simple and efficient to operate, effectively solving the problems of traditional purification devices being unable to effectively remove dust from industrial waste gas and being unable to be compatible with multiple catalysts to treat multiple industrial waste gases simultaneously. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the dust removal component structure of this utility model; Figure 3 This is a schematic diagram of the spray assembly structure of this utility model; Figure 4 This is a schematic diagram of the current splitter component structure of this utility model; Figure 5 This is a schematic diagram of the catalytic component structure of this utility model.
[0014] In the diagram: 101, Dust collection box; 102, Heating catalytic box; 103, Cylinder; 104, Dust collection assembly; 105, Spray assembly; 106, Diverter assembly; 107, Catalytic assembly; 104a, Air inlet; 104b, First baffle plate; 104c, Second baffle plate; 104d, Third baffle plate; 104e, Drain outlet; 105a, Filter hopper; 105b, Filter plate; 105c, Water tank; 105d, Water pump; 105e, Pipeline; 105f, Spray head; 106a, Drive rod; 106b, Swing rod; 106c, Mounting plate; 106d, Diverter plate; 107a, Desiccant plate; 107b, Activated carbon adsorption plate; 107c, Zeolite plate; 107d, Heating wire; 107e, Catalytic plate; 107f, Air outlet. Detailed Implementation
[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0018] Example Reference Figures 1-5 This is an embodiment of the present invention, which provides a multi-stage catalytic oxidation purification device for industrial waste gas, comprising: The dust collection box 101, the heating catalytic box 102 fixedly connected to the side wall of the dust collection box 101, the cylinder 103 fixedly installed on the surface of the heating catalytic box 102, the dust collection assembly 104 disposed in the inner cavity of the dust collection box 101, the spray assembly 105 fixedly connected to the surface of the dust collection box 101, the diversion assembly 106 movably connected to the inner wall of the heating catalytic box 102, and the catalytic assembly 107 fixedly installed on the inner wall of the heating catalytic box 102; The dust removal assembly 104 includes an air inlet 104a fixedly connected to the side wall of the dust collection box 101, a first baffle 104b fixedly installed on the inner wall of the dust collection box 101, a second baffle 104c fixedly connected to the inner wall of the dust collection box 101, a third baffle 104d disposed on the inner wall of the dust collection box 101, and a drain outlet 104e opened at the bottom of the dust collection box 101. Specifically, the first baffle plate 104b and the third baffle plate 104d are fixedly installed on the upper sides of the inner wall of the dust collector 101, and the second baffle plate 104c is fixedly installed at the bottom of the dust collector 101, located between the two drain outlets 104e. The flow velocity of the dust-laden industrial waste gas is reduced as it passes through the enlarged cross-section and collides with the first baffle plate 104b. Larger solid particles settle first and then flow backward to collide with the second baffle plate 104c and the third baffle plate 104d. The collided particles flow into the drain outlet 104e.
[0019] Furthermore, the spray assembly 105 includes a filter bucket 105a adapted to be connected to the inner wall of the drain outlet 104e, a filter plate 105b fixedly installed on the inner wall of the filter bucket 105a, a water storage tank 105c disposed on the surface of the filter bucket 105a, a water pump 105d fixedly connected to the side wall of the water storage tank 105c, a pipe 105e fixedly connected to the outlet of the water pump 105d, and a spray head 105f fixedly installed at the end of the pipe 105e.
[0020] In this process, the particulate matter in the industrial waste gas is washed away by the spray head 105f and enters the drain outlet 104e. The particulate matter is filtered out by the filter plate 105b, and the filtered water enters the water storage tank 105c. The water is then pumped out by the water pump 105d and enters the pipeline 105e for spraying again, thus realizing water recycling.
[0021] Preferably, the flow divider assembly 106 includes a drive rod 106a fixedly installed at the output end of the cylinder 103, a rocker arm 106b slidably connected to the inner wall of the drive rod 106a, a mounting plate 106c fixedly installed on the inner wall of the heated catalytic converter 102, and a flow divider plate 106d movably connected to the end of the mounting plate 106c.
[0022] The drive rod 106a has grooves at both ends. The cylinder 103 pushes the drive rod 106a, causing one end of the swing rod 106b to slide on the inner wall of the drive rod 106a, and the other end to drive the flow divider plate 106d to swing, which can perform flow divider and compartment processing on the heated catalytic box 102.
[0023] It should be noted that the catalytic assembly 107 includes a desiccant plate 107a fixedly installed on the inner wall of the heated catalytic chamber 102, an activated carbon adsorption plate 107b fixedly connected to the inner wall of the heated catalytic chamber 102, a zeolite plate 107c disposed on the inner wall of the heated catalytic chamber 102, a heating wire 107d fixedly installed on the inner wall of the heated catalytic chamber 102, a catalytic plate 107e fixedly connected to the side wall of the mounting plate 106c, and an outlet 107f disposed on the side wall of the heated catalytic chamber 102.
[0024] The desiccant plate 107a dries the sprayed industrial waste gas, and the activated carbon adsorption plate 107b performs final dust removal. The zeolite plate 107c, located near the heating wire 107d, heats and desorbs the industrial waste gas adsorbed by the zeolite. The industrial waste gas undergoes final high-efficiency catalysis through the combined use of the catalytic plate 107e and the heating wire 107d before being discharged through the outlet 107f.
[0025] During operation, the flow velocity of the dust-laden industrial waste gas decreases as it passes through the enlarged cross-section and collides with the first baffle plate 104b. Larger solid particles settle first, and the gas flows backward, colliding with the second baffle plate 104c and the third baffle plate 104d. The collided particles flow into the drain outlet 104e, where they are sprayed by the spray head 105f to flush the particulate matter from the industrial waste gas into the drain outlet 104e. The particulate matter is filtered out by the filter plate 105b, and the filtered water enters the water storage tank 105c. The water is then pumped out by the water pump 105d and enters the pipeline 105e for spraying again, thus achieving water recycling. The cylinder 103 actuates the drive rod 106. a) One end of the swing rod 106b slides on the inner wall of the drive rod 106a, while the other end drives the diversion plate 106d to swing, which can divert and compartment the heated catalytic box 102. The desiccant plate 107a dries the sprayed industrial waste gas. When it reaches the activated carbon adsorption plate 107b, it performs the final dust removal treatment on the industrial waste gas. The zeolite plate 107c is close to the heating wire 107d, which can heat and desorb the industrial waste gas adsorbed by the zeolite. The industrial waste gas is discharged through the outlet 107f after the industrial waste gas undergoes the final high-efficiency catalysis through the catalytic plate 107e and the heating wire 107d.
[0026] In summary, the combined use of dust removal component 104 and spray component 105 achieves efficient dust removal and water circulation for industrial waste gas; the combined use of diversion component 106 and catalytic component 107 enables the placement of multiple catalysts, which is not possible with existing purification devices; the arrangement of mounting plate 106c and diversion plate 106d allows the purification device to be compatible with the alternating purification of two different industrial waste gases. The device is simple and efficient to operate, effectively solving the problems of traditional purification devices being unable to effectively remove dust from industrial waste gas and being unable to simultaneously treat multiple industrial waste gases with multiple catalysts.
[0027] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0028] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0029] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A multi-stage catalytic oxidation purification device for industrial waste gas, characterized in that: include, The dust collection box (101), the heating catalytic box (102) fixedly connected to the side wall of the dust collection box (101), the cylinder (103) fixedly installed on the surface of the heating catalytic box (102), the dust collection assembly (104) provided in the inner cavity of the dust collection box (101), the spray assembly (105) fixedly connected to the surface of the dust collection box (101), the diversion assembly (106) movably connected to the inner wall of the heating catalytic box (102), and the catalytic assembly (107) fixedly installed on the inner wall of the heating catalytic box (102); The dust removal assembly (104) includes an air inlet (104a) fixedly connected to the side wall of the dust removal box (101), a first baffle (104b) fixedly installed on the inner wall of the dust removal box (101), a second baffle (104c) fixedly connected to the inner wall of the dust removal box (101), a third baffle (104d) provided on the inner wall of the dust removal box (101), and a drain outlet (104e) opened at the bottom of the dust removal box (101).
2. The multi-stage catalytic oxidation purification device for industrial waste gas according to claim 1, characterized in that: The spray assembly (105) includes a filter bucket (105a) adapted to be connected to the inner wall of the drain outlet (104e), and a filter plate (105b) fixedly installed on the inner wall of the filter bucket (105a).
3. The multi-stage catalytic oxidation purification device for industrial waste gas according to claim 2, characterized in that: The spray assembly (105) also includes a water storage tank (105c) disposed on the surface of the filter bucket (105a) and a water pump (105d) fixedly connected to the side wall of the water storage tank (105c).
4. The multi-stage catalytic oxidation purification device for industrial waste gas according to claim 3, characterized in that: The spray assembly (105) also includes a pipe (105e) fixedly connected to the outlet of the water pump (105d) and a spray head (105f) fixedly installed at the end of the pipe (105e).
5. The multi-stage catalytic oxidation purification device for industrial waste gas according to claim 4, characterized in that: The flow divider assembly (106) includes a drive rod (106a) fixedly installed at the output end of the cylinder (103), a rocker arm (106b) slidably connected to the inner wall of the drive rod (106a), a mounting plate (106c) fixedly installed on the inner wall of the heated catalytic box (102), and a flow divider plate (106d) movably connected to the end of the mounting plate (106c).
6. The multi-stage catalytic oxidation purification device for industrial waste gas according to claim 5, characterized in that: The catalytic assembly (107) includes a desiccant plate (107a) fixedly installed on the inner wall of the heated catalytic box (102), an activated carbon adsorption plate (107b) fixedly connected to the inner wall of the heated catalytic box (102), and a zeolite plate (107c) disposed on the inner wall of the heated catalytic box (102).
7. The multi-stage catalytic oxidation purification device for industrial waste gas according to claim 6, characterized in that: The catalytic assembly (107) also includes a heating wire (107d) fixedly installed on the inner wall of the heated catalytic chamber (102), a catalytic plate (107e) fixedly connected to the side wall of the mounting plate (106c), and an outlet (107f) provided on the side wall of the heated catalytic chamber (102).