Waste gas treatment device based on stink organic waste gas

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment device based on malodorous organic waste gas, which comprises a box body provided with a gas inlet, a containing cavity and a gas outlet, and the gas inlet, the containing cavity and the gas outlet form a waste gas treatment channel; the treatment assembly is arranged in the containing cavity and comprises at least two electrochemical oxidation units which are arranged in series in the air inlet direction, and each electrochemical oxidation unit is composed of an electro-catalysis set and a chemical catalyst plate which are connected. The multiple electrochemical oxidation units are arranged in the box body in the air inlet direction in series, waste gas is cooperatively treated through electro-catalysis and chemical catalysis, large-batch stink organic waste gas which is continuously and rapidly introduced can be effectively treated, it is ensured that gas at an air outlet reaches the emission standard, energy consumption is reduced, meanwhile, the treatment effect is improved, and the treatment cost is reduced. The environment-friendly requirement is met. In addition, the requirement of secondary treatment can be avoided, the overall treatment efficiency is improved, and the subsequent treatment cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment technical field especially, relates to a waste gas treatment device based on foul odorous organic waste gas. BACKGROUND

[0002] In chemical industry, pharmacy, food industry etc., the foul odorous organic waste gas produced if does not handle can cause the remarkable influence to the environment and human health. These waste gases contain a variety of harmful substances, such as hydrogen sulfide, ammonia nitrogen, mercaptans etc., direct emission can lead to air pollution.

[0003] The existing waste gas treatment equipment, such as certain UV photolysis equipment, although foul odorous organic waste gas can be handled, but when the processing capacity is too large, often cannot be completely purified, leading to the gas of outlet gas is unqualified, needs to carry out secondary processing, thereby reduce the processing efficiency. Therefore, a new type of waste gas treatment device based on foul odorous organic waste gas is needed, which can efficiently handle large quantities of foul odorous organic waste gas continuously and quickly. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a waste gas treatment device based on foul odorous organic waste gas, which can efficiently handle large quantities of foul odorous organic waste gas continuously and quickly.

[0005] In order to achieve the above purpose, the utility model provides a waste gas treatment device based on foul odorous organic waste gas, comprising:

[0006] The box is provided with an air inlet, a containing cavity and an air outlet, and the air inlet, the containing cavity and the air outlet form a waste gas treatment channel;

[0007] The treatment assembly is arranged in the containing cavity and comprises at least two electrochemical oxidation units arranged in series along the air inlet direction, and the electrochemical oxidation unit is composed of an electric catalysis group and a chemical catalyst plate connected.

[0008] Optionally, the air inlet and the air outlet are arranged on the opposite two side walls of the box respectively.

[0009] Optionally, the waste gas treatment device further comprises an air inlet pipe arranged outside the box, the air inlet pipe is communicated with the air inlet, and an adjusting valve is arranged on the air inlet pipe.

[0010] Optionally, the waste gas treatment device further comprises an air outlet pipe arranged outside the box, the air outlet pipe is communicated with the air outlet, and an air pump is arranged on the air outlet pipe.

[0011] Optionally, the waste gas treatment device further comprises a first activated carbon filter plate, and the first activated carbon filter plate is located between the air inlet and the treatment assembly.

[0012] Optionally, the waste gas treatment device further comprises a second activated carbon filter plate, which is located between the treatment assembly and the air outlet.

[0013] Optionally, the first activated carbon filter plate and the second activated carbon filter plate are movably connected with the box.

[0014] Optionally, the electrochemical oxidation unit is movably connected with the box.

[0015] Optionally, a manganese-based catalyst is used as an active catalytic material on the chemical catalyst plate.

[0016] Optionally, the box is made of a corrosion-resistant material.

[0017] The waste gas treatment device based on foul-smelling organic waste gas provided by the utility model has at least one of the following beneficial effects:

[0018] 1) efficient treatment: by arranging a plurality of electrochemical oxidation units in series along the air inlet direction in the box, the waste gas is treated by synergistic treatment of electro-catalysis and chemical catalysis, which can effectively treat a large amount of foul-smelling organic waste gas continuously and quickly, and ensure that the air outlet gas meets the emission standard;

[0019] 2) no secondary treatment requirement: the requirement for secondary treatment is avoided, the overall treatment efficiency is improved, and the subsequent treatment cost is reduced;

[0020] 3) environmental protection and energy saving: the coupling treatment of electro-catalytic oxidation and chemical catalytic oxidation is adopted, which reduces the energy consumption and improves the treatment effect, and meets the environmental protection requirements. BRIEF DESCRIPTION OF DRAWINGS

[0021] Those skilled in the art should understand that the provided drawings are used to better understand the utility model, and do not constitute any limitation on the scope of the utility model. Among them:

[0022] Figure 1 The structure diagram of the box provided by an embodiment of the utility model

[0023] Figure 2 The structure block diagram of the waste gas treatment device provided by an embodiment of the utility model.

[0024] Among them:

[0025] 100-box; 101-air outlet; 200-electro-catalytic group; 300-chemical catalyst plate; 400-first activated carbon filter plate; 500-second activated carbon filter plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, features and advantages of the present application more apparent, further detailed description will be made to the present application in combination with the drawings and specific embodiments. It should be noted that the drawings are in a very simplified form and all use non-precise proportions, only for the purpose of facilitating and clarifying the description of the embodiments of the present application. In order to make the purpose, features and advantages of the present application more apparent, please refer to the drawings. It should be noted that the structure, proportion, size and the like shown in the drawings of the present application are only used to cooperate with the content disclosed in the description, so as to be understood and read by those skilled in the art, and are not used to limit the conditions for implementing the present application. Any modification of structure, change of proportion relationship or adjustment of size, as long as it is in the same or similar situation as the effect and purpose that can be produced by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0027] As used in the present application, the singular forms "a", "an" and "the" include plural referents unless the content clearly dictates otherwise. As used in the present application, the term "or" is generally employed in the sense as including "and / or" unless the content clearly dictates otherwise. As used in the present application, the term "several" is generally employed in the sense as including "at least one" unless the content clearly dictates otherwise. As used in the present application, the term "at least two" is generally employed in the sense as including "two or more" unless the content clearly dictates otherwise. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third" can be explicitly or implicitly included one or at least two features.

[0028] In the description of the present application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting", "fixing" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Please refer to Figure 1 and Figure 2 , the embodiment provides a kind of waste gas treatment device based on foul-smelling organic waste gas, comprising:

[0030] Box 100 is equipped with gas inlet, containing cavity and gas outlet 101, gas inlet, containing cavity and gas outlet 101 form a waste gas treatment channel;

[0031] The processing assembly is arranged in the accommodating cavity and comprises at least two electrochemical oxidation units arranged in series along the air inlet direction, and each electrochemical oxidation unit is composed of an electrically catalytic group 200 and a chemical catalyst plate 300 connected with each other.

[0032] By arranging a plurality of electrochemical oxidation units in series along the air inlet direction in the box body 100, the waste gas is synergistically treated by electric catalysis and chemical catalysis, so that a large amount of odor organic waste gas continuously and quickly entering can be effectively treated, the gas at the air outlet can meet the emission standard, the energy consumption is reduced, the treatment effect is improved, and the environmental protection requirement is met.

[0033] It should be noted that the electro-catalytic oxidation technology is a reaction driven by electricity, and the principle mainly includes direct and indirect oxidation. Direct oxidation refers to that pollutants directly transfer electrons on the electrode surface to treat the pollutants, but in actual treatment, the adsorption on the electrode surface is easy to cover the electrode surface to cause the electrode to be inactivated. Indirect oxidation is that hydroxyl radicals (·OH) generated near the electrode surface through electrochemical reaction and inorganic ions in electrolyte such as chloride ions and sulfate ions generate active chlorine, persulfate and other secondary oxidation agents through electrochemical reaction, and the active oxidation agents react with organic matters in the waste gas to degrade the organic matters in the waste gas into small molecular organic and inorganic matters.

[0034] Specifically, the waste gas treatment device provided by the utility model adopts the coupling treatment of electro-catalytic oxidation and chemical catalytic oxidation, the electro-catalytic group 200 utilizes VOCs and other pollutants in the waste gas as a reducing agent, O2 in the waste gas as an oxidizing agent, and a redox reaction occurs on the conductive catalytic film to decompose part of VOCs into CO2 and H2O, and H2O2 is generated at the same time, and the chemical reaction formula is as follows:

[0035] VOCs + O2→ H2O2 + CO2

[0036] Anode: VOCs - e→ H2O + CO2

[0037] Cathode: H2O + O2 + e→ H2O2

[0038] The H2O2 generated by electro-catalysis generates a large amount of hydroxyl radicals on the chemical catalyst plate 300, the hydroxyl radicals have super strong oxidizing property, the oxidation potential is as high as 2.8V, and the remaining VOCs and other pollutants can be further decomposed, and the chemical reaction formula is as follows:

[0039] H2O→ OH· OH· + VOCs→ H2O + CO2

[0040] In this embodiment, the box body 100 is a box structure, and an air inlet, a containing cavity and an air outlet 101 are formed on the box body 100, which are used to protect the internal components such as the electro-catalytic group 200 and the chemical catalyst plate 300, and provide a space for treating the exhaust gas. Preferably, the box body 100 can be made of a corrosion-resistant material to ensure its service life.

[0041] Preferably, the air inlet and the air outlet 101 are respectively arranged on the opposite two side walls of the box body 100. As the name implies, the air inlet is the position where the exhaust gas enters the box body 100, and the air outlet 101 is the position where the exhaust gas is discharged from the box body 100 after being treated. In this embodiment, the air inlet is located on the left side wall of the box body 100, and the air outlet 101 is located on the right side wall of the box body 100. The shape of the air inlet and the air outlet 101 is not limited in this application, for example, the air inlet and the air outlet 101 can be round holes, squares, etc. In addition, the size and the number of the air inlet and the air outlet 101 are not limited in this application, which can be one or multiple, and can be designed according to actual needs.

[0042] In this embodiment, the exhaust gas treatment device further comprises an air inlet pipe arranged outside the box body 100, the air inlet pipe is in communication with the air inlet, and an adjusting valve is arranged on the air inlet pipe. The air inlet pipe can be used to connect the pipeline for conveying the exhaust gas, and the adjusting valve is arranged on the air inlet pipe to adjust the flow rate of the exhaust gas.

[0043] In this embodiment, the exhaust gas treatment device further comprises an air outlet pipe arranged outside the box body 100, the air outlet pipe is in communication with the air outlet 101, and an air pump is arranged on the air outlet pipe. The air pump is used to extract the treated exhaust gas in the box body 100 to improve the exhaust gas treatment efficiency.

[0044] Further, the exhaust gas treatment device further comprises a first activated carbon filter plate 400, which is located between the air inlet and the treatment assembly. The first activated carbon filter plate 400 is used to remove part of the large particle substances and odors in the exhaust gas. In this embodiment, the first activated carbon filter plate 400 is arranged near the air inlet, that is, after the exhaust gas enters the containing cavity through the air inlet, it is first filtered by the first activated carbon filter plate 400, and then flows to the treatment assembly for catalytic oxidation treatment.

[0045] Further, the exhaust gas treatment device further comprises a second activated carbon filter plate 500, which is located between the treatment assembly and the air outlet 101. The second activated carbon filter plate 500 is used to remove the remaining malodorous substances and organic substances after being treated by the treatment assembly. In this embodiment, the second activated carbon filter plate 500 is arranged near the air outlet 101, that is, after the exhaust gas is treated by the treatment assembly, it flows to the second activated carbon filter plate 500, and is discharged from the air outlet 101 after being filtered by the second activated carbon filter plate 500.

[0046] Preferably, the first activated carbon filter plate 400 and the second activated carbon filter plate 500 are movably connected with the box body 100. The movable connection is convenient for maintaining or replacing the activated carbon filter plate, and the detachable connection includes but is not limited to plug-in connection, buckle connection and threaded connection.

[0047] Preferably, the electrochemical oxidation unit is movably connected with the box body 100. In the embodiment, the electrochemical oxidation unit is composed of the electric catalysis group 200 and the chemical catalyst plate 300 connected with each other, and the electric catalysis group 200 and the chemical catalyst plate 300 can be separately detachably fixed in the box body 100, or the electric catalysis group 200 and the chemical catalyst plate 300 can be integrated by using a mounting seat, and then the mounting seat is fixed in the box body 100, and the utility model does not limit this. Similarly, the detachable connection between the electrochemical oxidation unit and the box body 100 includes but is not limited to plug-in connection, buckle connection and threaded connection.

[0048] In the embodiment, the electrochemical oxidation unit is preferably two, the processing effect meets the demand, and the processing cost is relatively low.

[0049] Preferably, the manganese-based catalyst is used as the active catalytic raw material on the chemical catalyst plate 300. The manganese-based catalyst includes a non-supported manganese-based catalyst and a supported manganese-based catalyst. The non-supported manganese-based catalyst is mainly divided into a single-component manganese-based catalyst and a multi-component manganese-based catalyst, the single-component manganese-based catalyst has good denitration performance, but its sulfur resistance and water resistance are poor. The catalytic activity of the catalyst can be improved and the sulfur resistance and water resistance of the catalyst can be improved by metal doping; the specific surface area of the supported manganese-based catalyst is large, and the sulfur resistance and water resistance are good, and the supported manganese-based catalyst can be selected according to the demand. Of course, in addition to the manganese-based catalyst, other chemical catalysts familiar to those skilled in the art can also be used, and the utility model does not limit this.

[0050] In summary, the embodiment of the utility model provides a kind of waste gas treatment device based on foul-smelling organic waste gas, by being connected in series in box body 100 along the air inlet direction multiple electrochemical oxidation units, synergistic treatment is carried out to waste gas by electric catalysis and chemical catalysis, can effectively handle the large amount of foul-smelling organic waste gas that is continuously and quickly passed in, ensure that the gas of air outlet reaches the emission standard, reduce energy consumption, improve processing effect at the same time, meet environmental protection requirement. And also can avoid the demand of secondary processing, improve overall processing efficiency, reduce subsequent processing cost.

[0051] In addition, it should be appreciated that, although the utility model has been disclosed as above with preferred embodiments, the above embodiments are not intended to limit the utility model. For any skilled person in the art, without departing from the scope of the utility model technical scheme, many possible changes and modifications or equivalent embodiments of equivalent changes can be made to the utility model technical scheme by using the disclosed technical content. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, without departing from the content of the utility model technical scheme, still belongs to the protection scope of the utility model technical scheme.

Claims

1. An exhaust gas treatment device based on malodorous organic exhaust gas, characterized by, The application relates to a waste gas treatment device. The device comprises a box body provided with an air inlet, a containing cavity and an air outlet, and the air inlet, the containing cavity and the air outlet form a waste gas treatment channel. The device further comprises an air inlet pipe arranged outside the box body, the air inlet pipe is communicated with the air inlet, and an adjusting valve is arranged on the air inlet pipe.

2. The foul-smelling organic exhaust gas-based exhaust gas treatment device according to claim 1, characterized by, The device further comprises an air outlet pipe arranged outside the box body, the air outlet pipe is communicated with the air outlet, and an air suction pump is arranged on the air outlet pipe.

3. The foul-smelling organic exhaust gas-based exhaust gas treatment device according to claim 2, characterized by, The device further comprises a first activated carbon filter plate arranged between the air inlet and the treatment assembly.

4. The foul-smelling organic exhaust gas-based exhaust gas treatment device according to claim 3, characterized by The device further comprises a second activated carbon filter plate arranged between the treatment assembly and the air outlet.

5. The foul-smelling organic exhaust gas-based exhaust gas treatment device according to claim 1, characterized by, The first activated carbon filter plate and the second activated carbon filter plate are movably connected with the box body.

6. The foul-smelling organic exhaust gas-based exhaust gas treatment device according to claim 5, characterized by The electrochemical oxidation unit is movably connected with the box body.

7. The foul-smelling organic exhaust gas-based exhaust gas treatment device according to claim 6, characterized by The chemical catalyst plate adopts a manganese-based catalyst as an active catalyst raw material.

8. The foul-smelling organic exhaust gas-based exhaust gas treatment device according to claim 1, characterized by The box body is made of a corrosion-resistant material.

9. The malodorous organic exhaust gas-based exhaust gas treatment device according to claim 1, characterized by ​ 10. The malodorous organic exhaust gas-based exhaust gas treatment device according to claim 1, characterized by ​

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