CN211716583U - Industrial waste gas treatment and purification system - Google Patents

Abstract

The utility model belongs to the technical field of waste gas treatment, concretely relates to industrial waste gas treatment clean system, including collection chamber, catalytic oxidation room, combustion chamber, heat exchange chamber, filter chamber and electricity generation room, the collection chamber is connected with the catalytic oxidation room, and the combustion chamber is all connected to catalytic oxidation room, heat exchange chamber and electricity generation room, and the filter chamber is connected with the heat exchange chamber. The utility model discloses a system has the function of catalytic oxidation, burning, filtration, electricity generation etc. concurrently, has reduced industrial waste gas's emission, can improve industrial waste gas's purification level.

Description

An industrial waste gas treatment and purification system

technical field

The utility model belongs to the technical field of waste gas treatment, in particular to an industrial waste gas treatment and purification system.

Background technique

With the development of the economy, industrial production has become an important part of the gross national product. However, industrial production will also bring environmental pollution. Industrial production is often accompanied by the production of toxic and harmful waste gas, such as carbon monoxide, nitrogen monoxide, and Nitrogen oxide, hydrogen sulfide, sulfur dioxide, etc.

In order to realize the pollution-free emission of waste gas, the existing waste gas purification method mainly performs physical adsorption on waste gas. However, the inventors found that the existing technology has a single purification method for waste gas, and cannot fully utilize the performance of waste gas while treating waste gas. The benefits brought by waste gas treatment cannot be guaranteed. Therefore, a new type of industrial waste gas treatment and purification system is urgently needed to solve the above problems.

Utility model content

The purpose of this utility model is: aiming at the deficiencies of the prior art, it provides an industrial waste gas treatment and purification system, which has the functions of catalytic oxidation, combustion, filtration, power generation, etc., reduces the discharge of industrial waste gas, and can improve the efficiency of industrial waste gas. purification level.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

An industrial waste gas treatment and purification system includes a gas collection chamber, a catalytic oxidation chamber, a combustion chamber, a heat exchange chamber, a filter chamber and a power generation chamber, the gas collection chamber is connected with the catalytic oxidation chamber, and the catalytic oxidation chamber, the The heat exchange chamber and the power generation chamber are both connected to the combustion chamber, the filter chamber is connected to the heat exchange chamber, and the heat exchange chamber is provided with a condensation pipe, and the condensation pipe is used to generate electricity in the combustion chamber. The flue gas is cooled down, the power generation room is provided with a turbine and a generator, and the turbine and the generator are connected.

Further, the gas collecting chamber is provided with a plurality of drying pipes, and the drying pipes are evenly arranged in the gas collecting chamber, and the drying pipes are used for drying the exhaust gas.

Further, a return gas pipeline is arranged between the combustion chamber and the plenum, and the return duct is used to return the exhaust gas that is not fully combusted in the combustion chamber back to the plenum.

Further, a gas one-way valve is arranged in the return gas pipeline, and the gas one-way valve is used to prevent the exhaust gas in the gas collection chamber from directly diffusing into the combustion chamber.

Further, a filter screen is provided at the input end of the gas collection chamber, and the filter screen is used for filtering solid particles.

Further, the catalytic oxidation chamber is provided with an SCR catalyst, and the input end of the catalytic oxidation chamber is connected to the SCR catalyst.

Further, the SCR catalyst is provided with an ammonia diffusion unit and a temperature control unit, and the temperature control unit is used for heating the ammonia diffusion unit.

Further, the catalytic oxidation chamber is provided with an oxygen-enriched pipeline, and the oxygen content of the oxygen-enriched pipeline accounts for 60% to 80% of the total gas content of the oxygen-enriched pipeline.

Further, the combustion chamber is provided with an incinerator, the inner wall of the combustion chamber is provided with an explosion-proof disc, and the explosion-proof disc covers the inner wall of the combustion chamber, which can significantly improve the safety of the combustion chamber.

Further, the filter chamber is provided with a flue gas purification channel, and the surface of the flue gas purification channel is covered with an activated carbon adsorption layer.

Further, the flue gas purification channel is arranged in a spiral structure, and the spiral structure can save the occupied space of the flue gas purification channel.

The beneficial effect of the utility model is that: the catalytic oxidation chamber, the heat exchange chamber and the power generation chamber of the present utility model are all connected to the combustion chamber, the power generation chamber is provided with a turbine and a generator, and the industrial waste gas is fully combusted in the combustion chamber after being treated by catalytic oxidation. , and during the combustion process, the combustion chamber promotes the gas pressure in the power generation chamber to gradually increase, and the turbine in the power generation chamber generates power to drive the generator to generate electricity. , filtration, power generation and other functions, effectively promote the transfer of energy and avoid industrial waste gas pollution to the environment, to achieve zero emissions of industrial waste gas.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

Among them: 1-gas collection chamber; 2-catalytic oxidation chamber; 3-combustion chamber; 4-heat exchange chamber; 5-filter chamber; 6-generating chamber; 7-return gas pipeline; 11-drying pipeline; 21-SCR 22-ammonia diffusion unit; 23-temperature control unit; 24-oxygen-enriched pipeline; 31-incinerator; 41-condensing pipeline; 51-flue gas purification channel; 61-turbine; 62-generator; 71-gas one-way valve.

Detailed ways

If certain terms are used in the description and claims to refer to specific components, those skilled in the art should understand that manufacturers may use different terms to refer to the same component. The description and claims do not use the difference in name as a way to distinguish components, but use the difference in function of the components as a criterion for distinguishing. As mentioned in the entire specification and claims, "comprising" is an open-ended term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range, and basically achieve technical effects.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", horizontal" etc. The orientation or positional relationship shown in the figures is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as Limitations of the present invention.

In the utility model, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments, but it is not intended to limit the present utility model.

As shown in Figure 1, an industrial waste gas treatment and purification system includes a gas collection chamber 1, a catalytic oxidation chamber 2, a combustion chamber 3, a heat exchange chamber 4, a filter chamber 5 and a power generation chamber 6, a gas collection chamber 1 and a catalytic oxidation chamber 2 connection, the catalytic oxidation chamber 2, the heat exchange chamber 4 and the power generation chamber 6 are all connected to the combustion chamber 3, the filter chamber 5 is connected to the heat exchange chamber 4, the heat exchange chamber 4 is provided with a condensation pipe 41, and the power generation chamber 6 is provided with a turbine 61 and The generator 62, the turbine 61 and the generator 62 are connected.

Among them, after the power generation chamber 6 and the combustion chamber 3 are connected, the combustion chamber 3 generates enough power and pressure through the combustion gas to promote the operation of the impeller of the turbine 61 in the power generation chamber 6. The impeller of the turbine 61 and the combustion chamber 3 are arranged between There are corresponding pipes, the air pressure enters the corresponding pipes to drive the impeller of the turbine 61 to run, the brushes of the generator 62 are connected with the impeller of the turbine 61, and the impeller can drive the brushes, thereby realizing the power generation of the generator 62; An electrical storage device or a storage battery can also be provided, and the electrical storage device or the storage battery can be connected with the generator 62 to store the power generated by the generator 62, thereby effectively improving the benefits brought by the exhaust gas treatment.

Preferably, the gas collection chamber 1 is provided with a plurality of drying pipes 11 , the plurality of drying pipes 11 are evenly arranged in the gas collection chamber 1 , and a drying agent is arranged in the drying pipes 11 .

Preferably, a gas return pipe 7 is arranged between the combustion chamber 3 and the gas collection chamber 1, and a gas check valve 71 is arranged in the gas return pipe 7. The gas return pipe 7 improves the combustion efficiency of the exhaust gas and makes the exhaust gas burn more fully , the gas one-way valve 71 is provided with a spring, a valve core and a sealing ring. The spring, the valve core and the sealing ring are arranged in sequence from the gas collection chamber 1 to the combustion chamber 3. The gas in the gas collection chamber 1 is blocked by the valve core and the sealing ring. and cannot pass through the combustion chamber 3 .

Preferably, the input end of the gas collection chamber 1 is provided with a filter screen. If there is a lot of dust in the input exhaust gas, a bag filter can also be connected to the input end of the gas collection chamber 1, so that the exhaust gas first passes through the pre-treatment of the bag filter. Treatment, and then pass into the gas collection chamber 1.

Preferably, the catalytic oxidation chamber 2 is provided with an SCR catalyst 21, the input end of the catalytic oxidation chamber 2 is connected to the SCR catalyst 21, and the SCR catalyst 21 can catalyze the reduction of gas and reduce the toxicity of the gas.

Preferably, the SCR catalyst 21 is provided with an ammonia diffusion unit 22 and a temperature control unit 23. The temperature control unit 23 is used to heat the ammonia diffusion unit 22. The ammonia diffusion unit 22 is provided with an ammonia gas pipeline and an ammonia water pipeline. The ammonia water in the gas and ammonia water pipeline can neutralize the acid gas and reduce the gas with strong oxidizing property, so as to purify the exhaust gas. The temperature control unit 23 is provided with a temperature control circuit, thereby accelerating the catalytic reduction reaction in the ammonia diffusion unit 22 and further improving efficiency of the reaction.

Preferably, the catalytic oxidation chamber 2 is provided with an oxygen-enriched pipeline 24, and the oxygen-enriched pipeline 24 is arranged at the output end of the SCR catalyst 21. The oxygen in the oxygen-enriched pipeline 24 can oxidize carbon monoxide, nitrogen monoxide and other reducing gases. .

Preferably, the combustion chamber 3 is provided with an incinerator 31, and the inner wall of the combustion chamber 3 is provided with an explosion-proof disc, which effectively improves the safety of the combustion process of industrial waste gas. high temperature metal materials.

Preferably, the filter chamber 5 is provided with a flue gas purification channel 51 , the surface of the flue gas purification channel 51 is covered with an activated carbon adsorption layer, and the activated carbon adsorption layer further adsorbs and purifies the flue gas generated after combustion in the combustion chamber 3 .

Preferably, the flue gas purification channel 51 is arranged in a spiral structure, and the spiral structure can increase the contact area between the flue gas and the activated carbon adsorption layer.

The operation process of the utility model includes: first, the industrial waste gas is introduced into the gas collection chamber 1 from the input end of the gas collection chamber 1, the solid particles are filtered by the filter screen arranged at the input end of the gas collection chamber 1, and several The drying pipeline 11 then dries the industrial waste gas. After the industrial waste gas is left standing in the gas collection chamber 1 for a period of time, the industrial waste gas is sent to the catalytic oxidation chamber 2 for reduction conversion or oxidation conversion to reduce the toxicity of the industrial waste gas; then, the combustion is started. In the incinerator 31 of the chamber 3, when the gas is burned at a high temperature, the pressure of the power generation chamber 6 connected to the combustion chamber 3 increases. When the pressure gradually increases, the turbine 61 of the power generation chamber 6 generates power, thereby driving The generator 62 generates electricity; after the industrial waste gas is fully burned in the combustion chamber 3, the combustion chamber 3 is closed, and then the burned industrial waste gas is transported to the heat exchange chamber 4. The condensation pipe 41 of the heat exchange chamber 4 is provided with a refrigerant, and the condensation pipe 41 The gas is cooled to prevent the generation of dioxins, and the heat exchange chamber 4 is connected to the filter chamber 5, which further adsorbs and filters the industrial waste gas, so as to minimize the harm of the industrial waste gas to the environment.

Based on the disclosure and teaching of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above-mentioned embodiments. Therefore, the utility model is not limited to the above-mentioned specific embodiments, and any obvious improvement, replacement or modification made by those skilled in the art on the basis of the present utility model belongs to the protection scope of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims (10)

1. An industrial waste gas treatment and purification system, characterized in that: comprising a gas collection chamber (1), a catalytic oxidation chamber (2), a combustion chamber (3), a heat exchange chamber (4), a filter chamber (5) and a power generation chamber (6), the gas collection chamber (1) is connected with the catalytic oxidation chamber (2), and the catalytic oxidation chamber (2), the heat exchange chamber (4) and the power generation chamber (6) are all connected The combustion chamber (3), the filter chamber (5) are connected with the heat exchange chamber (4), the heat exchange chamber (4) is provided with a condensation pipe (41), and the power generation chamber (6) is provided with There are a turbine (61) and a generator (62), the turbine (61) and the generator (62) being connected. 2. The industrial waste gas treatment and purification system according to claim 1, characterized in that: the gas collection chamber (1) is provided with several drying pipes (11), and the several drying pipes (11) are evenly It is arranged in the gas collection chamber (1). 3. The industrial waste gas treatment and purification system according to claim 1, wherein a return gas pipeline (7) is provided between the combustion chamber (3) and the gas collection chamber (1), and the return gas A gas check valve (71) is arranged in the pipeline (7). 4. The industrial waste gas treatment and purification system according to claim 1, characterized in that: the input end of the gas collection chamber (1) is provided with a filter screen. 5. The industrial exhaust gas treatment and purification system according to claim 1, characterized in that: the catalytic oxidation chamber (2) is provided with an SCR catalyst (21), and the input end of the catalytic oxidation chamber (2) is connected to the The SCR catalyst (21) is connected. 6. The industrial exhaust gas treatment and purification system according to claim 5, characterized in that: the SCR catalyst (21) is provided with an ammonia diffusion unit (22) and a temperature control unit (23), the temperature control unit (23) ) is used to heat the ammonia diffusion unit (22). 7. The industrial waste gas treatment and purification system according to claim 1, characterized in that: the catalytic oxidation chamber (2) is provided with an oxygen-enriched pipe (24). 8 . The industrial waste gas treatment and purification system according to claim 1 , wherein the combustion chamber ( 3 ) is provided with an incinerator ( 31 ), and the inner wall of the combustion chamber ( 3 ) is provided with an explosion-proof disc. 9 . 9. The industrial waste gas treatment and purification system according to claim 1, wherein the filter chamber (5) is provided with a flue gas purification passage (51), and the surface of the flue gas purification passage (51) is covered with activated carbon adsorption layer. 10 . The industrial waste gas treatment and purification system according to claim 9 , wherein the flue gas purification passage ( 51 ) is arranged in a spiral structure. 11 .

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