Coke oven flue gas purification equipment

Abstract

The utility model discloses coke oven flue gas purification equipment which comprises a dust removal assembly, and the dust removal assembly comprises an equipment main body, a cloth bag module positioned on the equipment main body, a bottom connecting piece connected with the cloth bag module, a lifting driving assembly connected with the bottom connecting piece, and a guide-out assembly connected with the lifting driving assembly. The lifting driving assembly drives the bottom connecting piece to do lifting motion, the guiding-out assembly covers the bucket-shaped structure at the bottom of the equipment body, and the inner surface of the guiding-out assembly is a smooth surface. On one hand, the lifting driving assembly removes dust attached to the surface of the cloth bag assembly during lifting, on the other hand, the guiding-out assembly is driven to do lifting motion, the dust is shaken to the dust outlet, and the smooth surface of the guiding-out assembly further avoids dust attachment.

Description

Technical Field

[0001] The utility model relates to the technical field of coke oven fume purification, and more specifically to a coke oven fume purification device. Background Art

[0002] Coke oven flue gas refers to the gas produced in the process of producing coke in the coke oven, such as carbon monoxide, hydrogen sulfide, etc. The coke oven flue gas mainly includes the following steps: 1 Preliminary cooling Cooling system: The coke oven flue gas is first cooled by the cooling system. Cooling can reduce the heat load in the subsequent treatment process and improve the treatment efficiency. 2 Dust removal: The cooled flue gas passes through dust removal equipment, such as an electrostatic precipitator or a bag filter, to remove solid particles (such as coal dust and ash) in the flue gas. 3 Desulfurization device: Flue gas often contains hydrogen sulfide and sulfur dioxide. Common desulfurization methods include: Wet desulfurization: Sulfide is absorbed by a solution containing lime or gypsum. Dry desulfurization: Sulfide is removed by using a dry absorbent (such as lime powder). 4 Denitrification device: In order to reduce nitrogen oxides (NOx) in flue gas, the following methods can be used: Selective catalytic reduction (SCR): NOx is reduced to nitrogen and water using ammonia or urea in the presence of a catalyst. Selective non-catalytic reduction (SNCR): Ammonia or urea is directly injected into the flue gas to remove NOx by high-temperature reaction. 5 Deamination: Ammonia contained in the flue gas can be removed by absorption or reaction. Common methods include acid absorption towers, in which ammonia reacts with acid solutions to form ammonia salts. 6 Tar removal: Tar vapor can be removed by condensation, filtration or chemical reaction. Common treatment methods include: Condensation: By lowering the flue gas temperature, the tar is condensed and separated. Chemical adsorption: Use special adsorbents to remove tar. The above are the main steps for coke oven flue gas removal.

[0003] Among them, the most commonly used dust removal step is bag dust removal. During dust removal, if it is not cleaned regularly, the dust generated will gather on the bag, blocking the holes of the bag, affecting the dust removal effect, and there are certain safety hazards. At the same time, the bottom of the bag dust collector is often equipped with a bucket-shaped structure to facilitate the discharge of dust. However, there is still the problem of dust adhering to the surface of the bucket-shaped structure. Utility Model Content

[0004] The purpose of the utility model is to provide a method for solving the technical problems existing in the above-mentioned background technology.

[0005] The utility model provides a coke oven flue gas purification device, comprising a dust removal component, the dust removal component comprising a device body, a bag module located in the device body, a bottom connecting piece connected to the bag module and a lifting drive component connected to the bottom connecting piece, and a derivation component connected to the lifting drive component;

[0006] The lifting drive assembly drives the bottom connecting piece to move up and down. The guiding assembly covers the hopper-shaped structure at the bottom of the equipment main body, and the inner surface of the guiding assembly is a smooth surface.

[0007] In a preferred embodiment, the bottom connecting piece includes a connecting sleeve sleeved on the bottom of the cloth bag module and a connecting bracket fixed on the connecting sleeve. The connecting sleeve is fixed to the cloth bag module, the lifting drive assembly is fixedly connected to the connecting bracket, and the guiding assembly is rotatably connected to the connecting bracket.

[0008] In a preferred embodiment, the lifting drive assembly includes a driving cylinder.

[0009] In a preferred embodiment, the guiding assembly includes a movable rod and a flexible hood connected to the movable rod. The edge of the flexible hood is sealingly connected to the inner wall of the equipment main body.

[0010] In a preferred embodiment, the movable rod includes a first rod body and a second rod body movably connected to the first rod body. The second rod body is movably connected to the bottom connecting piece.

[0011] In a preferred embodiment, the flexible hood includes a hopper-shaped portion and a buffer portion.

[0012] In a preferred embodiment, the inner surface of the flexible hood is a smooth surface.

[0013] The beneficial effects of the technical solution of the present utility model are as follows:

[0014] On the one hand, when lifting, the lifting drive assembly removes the dust attached to the surface of the cloth bag assembly. On the other hand, it drives the guiding assembly to move up and down, shakes the dust to the ash discharge port, and the smooth surface of the guiding assembly further prevents dust from adhering. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model,

[0016] Figure 2 is a schematic diagram of the internal structure of the present utility model,

[0017] Figure 3 is a schematic diagram of a partial structure of the present utility model,

[0018] Figure 4 is a schematic diagram of a partial structure of the present utility model from another perspective.

[0019] Description of the drawing reference numerals: 1 Equipment main body, 2 Cloth bag module, 3 Bottom connecting piece, 4 Connecting sleeve, 5 Connecting bracket, 6 Driving cylinder, 7 Exporting component, 8 First rod body, 9 Second rod body, 10 Flexible hood hopper, 11 Hopper-shaped part, 12 Buffer part, 13 Ash discharge port, 14 Air inlet, 15 Exhaust port. Detailed implementation manners

[0020] The present utility model will be further described in detail below in conjunction with the drawings and the detailed implementation manners. The embodiments of the present utility model are given for the convenience of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations will be obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0021] As Figures 1-4 shown, a coke oven flue gas purification device according to the technical solution of the present utility model includes a dust removal component, and the dust removal component includes an equipment main body 1, a cloth bag module 2 located in the equipment main body 1, a bottom connecting piece 3 connected to the cloth bag module 2, a lifting drive component connected to the bottom connecting piece 3, and an exporting component 7 connected to the lifting drive component. After the flue gas generated by the coke oven is cooled, it enters the dust removal component through the air inlet 14, the dust mixed in the flue gas is removed, and then discharged from the exhaust port 15, and then subsequent desulfurization and other steps are carried out. In this solution, a lifting drive component is connected to the cloth bag module 2, which can drive the cloth bag module 2 to vibrate up and down to remove the ash layer attached to the cloth bag module 2, and then it is conveyed to the position of the ash discharge port 13 by the exporting component 7, and the motor drives the gate at the ash discharge port 13 to open to discharge the dust.

[0022] The lifting drive component drives the bottom connecting piece 3 to move up and down, the exporting component 7 covers the hopper-shaped structure at the bottom of the equipment main body 1, and the inner surface of the exporting component 7 is a smooth surface. The lifting drive component, on the one hand, removes the dust attached to the surface of the cloth bag component during lifting, and on the other hand, drives the exporting component 7 to move up and down to shake the dust to the ash discharge port 13, and the smooth surface of the exporting component 7 further prevents dust from adhering.

[0023] The bottom connecting member 3 includes a connecting sleeve 4 sleeved on the bottom of the cloth bag module 2 and a connecting bracket 5 fixed on the connecting sleeve 4. The connecting sleeve 4 is fixed to the cloth bag module 2. The lifting drive assembly is fixedly connected to the connecting bracket 5, and the guiding assembly 7 is rotatably connected to the connecting bracket 5. The lifting drive assembly includes a drive cylinder 6. The drive cylinder 6 drives the cloth bag module 2 to lift and has a downward pulling force when descending, shaking off the dust on the outer surface of the cloth bag module 2. The bottom connecting member 3 ensures that the cloth bag is in an open state on the one hand and is convenient for connecting to the drive cylinder 6 and the guiding assembly 7 on the other hand.

[0024] The guiding assembly 7 includes a movable rod and a flexible hood 10 connected to the movable rod. The edge of the flexible hood 10 is hermetically connected to the inner wall of the equipment main body 1. The movable rod includes a first rod body 8 and a second rod body 9 movably connected to the first rod body 8. The second rod body 9 is movably connected to the bottom connecting member 3. Under the action of the lifting drive assembly, the bottom connecting member 3 moves up and down, thereby driving the first rod body 8 and the second rod body 9 to move, realizing the stretching of the flexible hood 10. During the stretching process, the flexible hood 10 can deform, shaking off the dust attached to its surface.

[0025] The flexible hood 10 includes a bucket-shaped portion 11 and a buffer portion 12. The buffer portion 12 can ensure that the flexible hood 10 can perform telescopic deformation. The flexible hood 10 can be made of a deformable material as a whole, such as a cloth material, and a smooth surface is provided on the inner surface, such as covering a smooth film, to reduce friction.

[0026] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. A coke oven flue gas purification device, including a dust removal component, characterized in that: The dust removal assembly includes a device main body, a cloth bag module located in the device main body, a bottom connecting member connected to the cloth bag module, a lifting drive assembly connected to the bottom connecting member, and an export assembly connected to the lifting drive assembly; The lifting drive assembly drives the bottom connecting member to move up and down. The export assembly covers the bottom hopper structure of the device main body, and the inner surface of the export assembly is a smooth surface.

2. The coke oven flue gas purification equipment according to claim 1, characterized in that: The bottom connecting member includes a connecting sleeve sleeved on the bottom of the cloth bag module and a connecting bracket fixed on the connecting sleeve. The connecting sleeve is fixed to the cloth bag module. The lifting drive assembly is fixedly connected to the connecting bracket, and the export assembly is rotatably connected to the connecting bracket.

3. The coke oven flue gas purification equipment according to claim 1, characterized in that: The lifting drive assembly includes a driving cylinder.

4. The coke oven flue gas purification equipment according to claim 1, characterized in that: The export assembly includes a movable rod and a flexible hood connected to the movable rod. The edge of the flexible hood is sealingly connected to the inner wall of the device main body.

5. The coke oven flue gas purification equipment according to claim 4, characterized in that: The movable rod includes a first rod body and a second rod body movably connected to the first rod body. The second rod body is movably connected to the bottom connecting member.

6. The coke oven flue gas purification equipment according to claim 4, characterized in that: The flexible hood includes a hopper portion and a buffer portion.

7. The coke oven flue gas purification equipment according to claim 4, characterized in that: The inner surface of the flexible hood is a smooth surface.

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