Industrial kiln assembled with waste gas treatment structure

Abstract

The utility model provides an industrial kiln assembled with a waste gas treatment structure, which comprises an industrial kiln body, a smoke exhaust pipe and a treatment component, a smoke exhaust port of the industrial kiln body is provided with the smoke exhaust pipe through a sealing strip, and one end of the smoke exhaust pipe far away from the industrial kiln body is connected with the treatment component. The treatment assembly comprises a dust removal piece, a smoke collecting pipe, a smoke outlet pipe, a desulfurization piece, a denitration piece, an activated carbon adsorption piece and an axial flow fan, the dust removal piece comprises a fixing frame, a cyclone dust collector, a discharging pipe and an air outlet, and the cyclone dust collector is installed in the fixing frame. When the flue gas treatment device is used, after flue gas is treated by the treatment assembly, the content of various pollutants in waste gas can be effectively reduced, so that the waste gas reaches national and local environment-friendly emission standards, and meanwhile, the pollution of the discharged flue gas to surrounding air, soil and water is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the field of industrial furnace equipment, and particularly relates to an industrial furnace equipped with an exhaust gas treatment structure. Background Art

[0002] Industrial furnaces refer to heating equipment used in industrial production, which are widely used in industries such as metallurgy, chemical industry, building materials, and machinery. Exhaust gas treatment of industrial furnaces is carried out to reduce pollution, meet environmental protection requirements, achieve resource recovery and utilization, and ensure safe production. The existing industrial furnaces have many disadvantages. First of all, industrial furnaces without an exhaust gas treatment structure directly emit a large amount of exhaust gas, which contains various pollutants such as particulate matter, sulfur oxides, and nitrogen oxides. These exhaust gases are caused on the one hand by incomplete combustion of fuel and material reactions at high temperatures, and on the other hand by air flow and material volatilization in the furnace. For these disadvantages, the conventional countermeasures mainly include optimizing the combustion process, improving the fuel combustion efficiency, and reducing the generation of incomplete combustion products; strengthening the sealing of the furnace to reduce the mixing of air and material volatilization. However, these methods have certain drawbacks. Optimizing the combustion process often requires more advanced combustion equipment and precise control technology, which are costly and require high technical requirements for operators. Strengthening the sealing of the furnace may affect the ventilation effect in the furnace, resulting in incomplete combustion or excessive local temperature, affecting product quality and the service life of the furnace. At the same time, these methods can only reduce the generation of exhaust gas to a certain extent, but cannot fundamentally solve the problem of exhaust gas pollution. Therefore, a new structure needs to be proposed to solve the above technical problems. Summary of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an industrial furnace equipped with an exhaust gas treatment structure to solve the problems raised in the above background art.

[0004] The utility model is realized through the following technical solutions: An industrial furnace equipped with an exhaust gas treatment structure includes: an industrial furnace body, a smoke exhaust pipe, and a treatment component. The smoke exhaust port of the industrial furnace body is installed with a smoke exhaust pipe through a sealing strip. One end of the smoke exhaust pipe far from the industrial furnace body is connected to the treatment component. The treatment component includes: a dust removal member, a smoke collecting pipe, a smoke outlet pipe, a desulfurization member, a denitrification member, an activated carbon adsorption member, and an axial flow fan. The dust removal member includes: a fixed frame, a cyclone dust collector, a discharge pipe, and an air outlet. The cyclone dust collector is installed inside the fixed frame. An air outlet pipe is installed at the air outlet of the cyclone dust collector. The air outlet pipe is arranged inside the smoke collecting pipe. The smoke collecting pipe is sequentially provided with a desulfurization member, a denitrification member, an activated carbon adsorption member, and an axial flow fan from left to right. The right end of the smoke collecting pipe is designed to be open. A support rod is installed on the outer surface of the smoke collecting pipe.

[0005] As a preferred embodiment, a smoke outlet is provided on the upper side surface of the industrial kiln body. A smoke exhaust pipe is installed on the upper side surface of the smoke outlet. One end of the smoke exhaust pipe away from the industrial kiln body is connected to the air inlet of a cyclone dust collector. A discharge pipe is provided on the lower side surface of the cyclone dust collector. An air outlet is provided on the right side of the outer surface at the upper end of the cyclone dust collector. The dust removal component can first efficiently remove most of the particulate matter in the waste gas, reduce the wear risk of subsequent processing equipment, and extend its service life.

[0006] As a preferred embodiment, a smoke exhaust pipe with an L-shaped structure is installed at the air outlet. A smoke collecting pipe is hermetically installed on the outer surface of the smoke exhaust pipe through the cyclone dust collector. A desulfurization component is provided to the right of the smoke exhaust pipe. The desulfurization component includes: a desulfurization pool and a door panel. A desulfurization pool is formed by the downward depression of the inner wall on the lower side of the smoke collecting pipe. The right side of the desulfurization pool is hermetically hinged with a door panel through a lock and damper. Limestone slurry is provided inside the desulfurization pool. After the flue gas is treated by the treatment component, the content of various pollutants in the waste gas can be effectively reduced, making it meet the national and local environmental protection discharge standards. At the same time, the pollution of the surrounding air, soil and water body caused by the discharged flue gas is greatly reduced.

[0007] As a preferred embodiment, the smoke outlet end of the smoke exhaust pipe is arranged at the bottom inside the desulfurization pool. A check valve is provided inside the smoke exhaust pipe. The denitration component includes: a collection pool, a sealing cover and a spray pipe. A collection pool is provided to the right of the desulfurization pool through the smoke collecting pipe. A sealing cover is hermetically clamped at the lower end of the collection pool.

[0008] As a preferred embodiment, a spray pipe is installed above the collection pool through the inner wall on the upper side of the smoke collecting pipe. One end of the spray pipe away from the smoke collecting pipe is connected to a high-pressure reducing agent supply device. A plurality of atomizing nozzles are evenly installed on the outer surface of the section of the spray pipe located in the smoke collecting pipe.

[0009] As a preferred embodiment, multiple groups of activated carbon adsorption components are evenly installed on the inner wall of the smoke collecting pipe to the right of the collection pool. The structures of the multiple groups of activated carbon adsorption components are the same. A baffle is hermetically installed on the front side surface of the section of the smoke collecting pipe where the activated carbon adsorption component is located.

[0010] As a preferred embodiment, an axial flow fan is installed on the inner wall of the smoke collecting pipe to the right of the rightmost activated carbon adsorption component. The air outlet of the axial flow fan faces the right end of the smoke collecting pipe.

[0011] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: By providing a processing component, one end of the smoke exhaust pipe away from the industrial furnace body is connected to the processing component. The processing component includes: a dust removal member, a smoke collecting pipe, a smoke outlet pipe, a desulfurization member, a denitration member, an activated carbon adsorption member, and an axial flow fan. Inside the smoke collecting pipe, a desulfurization member, a denitration member, an activated carbon adsorption member, and an axial flow fan are sequentially arranged from left to right. When in use, after the flue gas is processed by the processing component, the content of various pollutants in the waste gas can be effectively reduced, making it meet the national and local environmental protection discharge standards. At the same time, the pollution of the surrounding air, soil, and water body caused by the discharged flue gas is greatly reduced.

[0012] By providing a dust removal member, the dust removal member includes: a fixing frame, a cyclone dust collector, a discharge pipe, and an air outlet. The cyclone dust collector is installed inside the fixing frame, and a smoke outlet pipe is installed at the air outlet of the cyclone dust collector. The smoke outlet pipe is arranged inside the smoke collecting pipe. When in use, the flue gas generated by the industrial furnace usually contains a large amount of solid particles, such as dust and powder. If these particulate matters directly enter subsequent equipment such as the desulfurization member, denitration member, and activated carbon adsorption member, it will cause serious wear and blockage to their internal structures. At this time, the dust removal member can first remove most of the particulate matters in the waste gas, reduce the wear risk of subsequent processing equipment, and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic diagram of the smoke exhaust pipe of an industrial furnace equipped with an exhaust gas treatment structure according to the present utility model.

[0015] Figure 2 It is a schematic diagram of the processing component of an industrial furnace equipped with an exhaust gas treatment structure according to the present utility model.

[0016] In the figure, 100 - industrial furnace body, 110 - smoke exhaust pipe;

[0017] 200 - cyclone dust collector, 210 - fixing frame, 220 - discharge pipe;

[0018] 300 - smoke collecting pipe, 301 - support rod, 310 - smoke outlet pipe, 320 - desulfurization tank, 330 - door panel, 340 - collection tank, 350 - spray pipe, 360 - activated carbon adsorption member, 370 - axial flow fan. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1 to 2 , the present utility model provides a technical solution: an industrial kiln equipped with an exhaust gas treatment structure, including: an industrial kiln body 100, a smoke exhaust pipe 110, and a treatment component. The smoke exhaust port of the industrial kiln body 100 is installed with a smoke exhaust pipe 110 through a sealing strip. One end of the smoke exhaust pipe 110 away from the industrial kiln body 100 is connected to the treatment component. The treatment component includes: a dust removal part, a smoke collecting pipe 300, a smoke outlet pipe 310, a desulfurization part, a denitrification part, an activated carbon adsorption part 360, and an axial flow fan 370. The dust removal part includes: a fixing frame 210, a cyclone dust collector 200, a discharge pipe 220, and an air outlet. The cyclone dust collector 200 is installed inside the fixing frame 210. The air outlet of the cyclone dust collector 200 is installed with a smoke outlet pipe 310. The smoke outlet pipe 310 is arranged inside the smoke collecting pipe 300. Inside the smoke collecting pipe 300, a desulfurization part, a denitrification part, an activated carbon adsorption part 360, and an axial flow fan 370 are arranged in sequence from left to right. The right end of the smoke collecting pipe 300 is designed to be open. A support rod 301 is installed on the outer surface of the smoke collecting pipe 300.

[0021] Please refer to Figures 1 to 2 , as the first embodiment of the present utility model: a smoke outlet is arranged on the upper surface of the industrial kiln body 100. The smoke exhaust pipe 110 is installed on the upper surface of the smoke outlet. One end of the smoke exhaust pipe 110 away from the industrial kiln body 100 is connected to the air inlet of the cyclone dust collector 200. A discharge pipe 220 is arranged on the lower surface of the cyclone dust collector 200. An air outlet is arranged on the right side of the outer surface of the upper end of the cyclone dust collector 200;

[0022] When in use, when the industrial furnace body 100 is in use, flue gas will be generated at this time. The flue gas will enter the inside of the exhaust pipe 110 from the smoke outlet of the industrial furnace body 100. After the flue gas enters the inside of the exhaust pipe 110, the user can start the cyclone dust collector 200 and the axial flow fan 370 inside the treatment component at this time to form an air duct inside the exhaust pipe 110 and lead the flue gas to the inside of the smoke collecting pipe 300. When the flue gas enters the cyclone dust collector 200 through the exhaust pipe 110, the cyclone dust collector 200 works at this time to discharge the large particles and impurities of the flue gas through the discharge pipe 220. At this time, the flue gas filtered by the cyclone dust collector 200 will be discharged through the air outlet and enter the smoke collecting pipe 300 for subsequent treatment (the cyclone dust collector 200 is a prior art, and its working principle and structure will not be described in detail here). Since the flue gas generated by industrial furnaces usually contains a large amount of solid particles, such as dust, powder, etc., if these particulate matters directly enter subsequent equipment such as desulfurization components, denitration components, and activated carbon adsorption components 360, it will cause serious wear and blockage to their internal structures. At this time, the dust removal component can first remove most of the particulate matters in the waste gas, reduce the wear risk of subsequent treatment equipment, and extend its service life.

[0023] Please refer to Figure 1 、 Figure 2 As the second embodiment of the present invention: A smoke outlet pipe 310 with an L-shaped structure is installed at the air outlet. The outer surface of the smoke outlet pipe 310 is hermetically installed with a smoke collecting pipe 300 through the cyclone dust collector 200. A desulfurization component is arranged on the right side of the smoke outlet pipe 310. The desulfurization component includes: a desulfurization pool 320 and a door panel 330. A desulfurization pool 320 is formed by the downward depression of the inner wall of the lower side of the smoke collecting pipe 300. The right side of the desulfurization pool 320 is hermetically hinged with a door panel 330 through a lock and damper. Limestone slurry is arranged inside the desulfurization pool 320;

[0024] The smoke outlet end of the smoke outlet pipe 310 is arranged at the bottom inside the desulfurization pool 320. A one-way valve is arranged inside the smoke outlet pipe 310. The denitration component includes: a collection pool 340, a sealing cover, and a spray pipe 350. A collection pool 340 is arranged on the right side of the desulfurization pool 320 through the smoke collecting pipe 300. The lower end of the collection pool 340 is hermetically clamped with a sealing cover;

[0025] A spray pipe 350 is installed above the collection pool 340 through the inner wall of the upper side of the smoke collecting pipe 300. One end of the spray pipe 350 away from the smoke collecting pipe 300 is connected to a high-pressure reductant supply device. A plurality of atomizing nozzles are evenly installed on the outer surface of the section of the spray pipe 350 located in the smoke collecting pipe 300;

[0026] On the right side of the collection pool 340, multiple groups of activated carbon adsorbing components 360 are evenly installed through the inner wall of the smoke collecting pipe 300. The structures of the multiple groups of activated carbon adsorbing components 360 are the same. A baffle is hermetically installed on the front side surface of a section of the smoke collecting pipe 300 where the activated carbon adsorbing component 360 is located.

[0027] On the right side of the rightmost activated carbon adsorbing component 360, an axial flow fan 370 is installed through the inner wall of the smoke collecting pipe 300. The air outlet of the axial flow fan 370 faces the right end of the smoke collecting pipe 300.

[0028] During use, when the flue gas is discharged from the air outlet of the cyclone dust collector 200, it will enter the inside of the smoke outlet pipe 310. Since the smoke outlet end of the smoke outlet pipe 310 is arranged at the bottom inside the desulfurization pool 320, when the gas is discharged from the smoke outlet pipe 310, it will enter the inside of the desulfurization pool 320 and thus enter the limestone slurry inside the desulfurization pool 320 (at this time, sulfur dioxide in the flue gas will react with the limestone slurry to form calcium sulfite, which is then oxidized to calcium sulfate, thereby absorbing the sulfur dioxide in the flue gas). When the flue gas enters the limestone slurry, it will react with it and then bubble upward and discharge. At this time, driven by the axial flow fan 370, the flue gas will continue to move to the right. When the flue gas is discharged into the limestone slurry, the user can start the external high-pressure reducing agent supply device at this time, so that the spray pipe 350 sprays the reducing agent (ammonia or urea) in a mist through the mist nozzle. When the flue gas passes above the collection pool 340, the nitrate in the flue gas will be reacted with the reducing agent to generate nitrogen and water at this time. Nitrogen will be discharged along with the flue gas, and the water generated by the reaction at this time will enter the inside of the collection pool 340. When the flue gas passes through the activated carbon adsorbing component 360 along with the axial flow fan 370, the activated carbon adsorbing component 360 can further adsorb organic pollutants and odors in the flue gas, making the discharged waste gas cleaner. Finally, the flue gas is discharged through the axial flow fan 370. When the limestone slurry is used up, the collection pool 340 is full, or the activated carbon adsorbing component 360 needs to be replaced and cleaned, the user only needs to open the door panel 330, the sealing cover, and the cover plate in sequence to replace the limestone slurry and clean the collection pool 340 and the activated carbon adsorbing component 360. Since the treatment of the flue gas by the treatment component can effectively reduce the content of various pollutants in the waste gas, making it meet the national and local environmental protection discharge standards, at the same time, the pollution of the surrounding air, soil, and water body by the discharged flue gas is greatly reduced.

[0029] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An industrial kiln equipped with an exhaust gas treatment structure, comprising: Industrial furnace body (100), exhaust pipe (110) and treatment component, characterized in that the exhaust port of the industrial furnace body (100) is installed with an exhaust pipe (110) through a sealing strip, and one end of the exhaust pipe (110) away from the industrial furnace body (100) is connected to the treatment component; The treatment component includes: a dust removal component, a smoke collecting pipe (300), an exhaust pipe (310), a desulfurization component, a denitration component, an activated carbon adsorption component (360) and an axial flow fan (370), and the dust removal component includes: a fixing frame (210), a cyclone dust collector (200), a discharge pipe (220) and an air outlet, and the cyclone dust collector (200) is installed inside the fixing frame (210); An exhaust pipe (310) is installed at the air outlet of the cyclone dust collector (200), the exhaust pipe (310) is arranged inside the smoke collecting pipe (300), and a desulfurization component, a denitration component, an activated carbon adsorption component (360) and an axial flow fan (370) are sequentially arranged in the smoke collecting pipe (300) from left to right. The right end of the smoke collecting pipe (300) is designed to be open, and a support rod (301) is installed on the outer surface of the smoke collecting pipe (300).

2. The industrial kiln equipped with an exhaust gas treatment structure according to claim 1, characterized in that: An exhaust port is arranged on the upper surface of the industrial furnace body (100), an exhaust pipe (110) is installed on the upper surface of the exhaust port, one end of the exhaust pipe (110) away from the industrial furnace body (100) is connected to the air inlet of the cyclone dust collector (200), a discharge pipe (220) is arranged on the lower surface of the cyclone dust collector (200), and an air outlet is arranged on the right side of the outer surface of the upper end of the cyclone dust collector (200).

3. An industrial kiln equipped with an exhaust gas treatment structure as described in claim 2, characterized in that: An L-shaped exhaust pipe (310) is installed at the air outlet, the outer surface of the exhaust pipe (310) is hermetically installed with a smoke collecting pipe (300) through the cyclone dust collector (200), a desulfurization component is arranged on the right side of the exhaust pipe (310), and the desulfurization component includes: a desulfurization tank (320) and a door panel (330). A desulfurization tank (320) is formed by downward depression of the lower inner wall of the smoke collecting pipe (300), and the right side of the desulfurization tank (320) is hermetically hinged with a door panel (330) through a lock damping, and limestone slurry is arranged inside the desulfurization tank (320).

4. An industrial kiln equipped with an exhaust gas treatment structure according to claim 3, characterized in that: The smoke outlet end of the exhaust pipe (310) is arranged at the bottom inside the desulfurization tank (320), a one-way valve is arranged inside the exhaust pipe (310), and the denitration component includes: a collection tank (340), a sealing cover and a spray pipe (350). A collection tank (340) is arranged on the right side of the desulfurization tank (320) through the smoke collecting pipe (300), and a sealing cover is hermetically clamped at the lower end of the collection tank (340).

5. An industrial kiln equipped with an exhaust gas treatment structure as claimed in claim 4, characterized in that: A spray pipe (350) is installed above the collection tank (340) through the upper inner wall of the smoke collecting pipe (300), one end of the spray pipe (350) away from the smoke collecting pipe (300) is connected to a high-pressure reductant supply device, and a plurality of atomizing nozzles are uniformly installed on the outer surface of the spray pipe (350) in a section of the smoke collecting pipe (300).

6. An industrial furnace equipped with an exhaust gas treatment structure as described in claim 5, characterized in that: On the right side of the collection pool (340), a plurality of activated carbon adsorption components (360) are evenly installed through the inner wall of the smoke collecting pipe (300). The structures of the plurality of activated carbon adsorption components (360) are the same. A baffle is hermetically installed on the front side surface of a section of the smoke collecting pipe (300) where the activated carbon adsorption component (360) is located.

7. An industrial furnace equipped with an exhaust gas treatment structure as claimed in claim 6, wherein: An axial flow fan (370) is installed through the inner wall of the smoke collecting pipe (300) on the right side of the rightmost activated carbon adsorption component (360). The air outlet of the axial flow fan (370) faces the right end of the smoke collecting pipe (300).

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