Coke oven coal coking desulfurization device

Abstract

The coke oven coal coking desulfurization device comprises a tank body, a collection cabinet is arranged at the bottom of the tank; one side of the lower part of the tank body is provided with an air inlet pipeline extending into the tank body; the air inlet pipeline is provided with an air injection disc in the tank body; multiple jet holes are formed in the upper part of the jet disc; a dust conveyor is arranged on one side of the tank body; a reactant storage tank is arranged on the dust conveyor; an output port of the dust conveyor is provided with a dust conveying pipeline extending into the tank body from one side of the upper part of the tank body; a support frame is arranged at the upper part in the tank body; a powder dispersing barrel is rotationally arranged in the middle of the supporting frame; a plurality of powder dispersing openings are formed in the circumferential direction of the powder dispersing cylinder; the dust conveying pipeline is communicated with the powder dispersing barrel; a plurality of first impellers are fixedly arranged in the powder dispersing barrel in the vertical direction; a mounting ring is arranged at the upper part in the tank body; a filter screen is arranged in the mounting ring; the top of the tank body extends outwards to form a gas outlet pipeline; one end of the gas outlet pipeline away from the tank body is connected with a filter cabinet; a gas recovery pipeline is arranged on one side of the filtering cabinet.

Description

Technical Field

[0001] The invention belongs to the field of coke oven coking flue gas desulfurization equipment, and in particular relates to a coke oven coal coking desulfurization device. Background Art

[0002] A large amount of high-temperature flue gas is generated during the coal coking process in industrial coke ovens. Since the flue gas contains a large amount of sulfur dioxide, direct discharge into the atmosphere will cause greater air pollution and lose the heat energy carried by the high-temperature flue gas. For the desulfurization of flue gas containing sulfur dioxide, three methods are mostly used: wet, dry, and semi-dry. Wet desulfurization will produce liquid and sludge, which are extremely difficult to clean. In addition, the heat in the high-temperature flue gas will be taken away during the wet desulfurization process, making it difficult to recover heat. The semi-dry desulfurization efficiency is low and it is very easy to cause scaling and clogging of the system. The commonly used dry desulfurization is difficult to evenly mix the reactants with the flue gas for reaction, the reaction efficiency is low, and the absorption and utilization rate of the reactants is low. Summary of the invention

[0003] The present invention aims to provide a coke oven coal coking desulfurization device to solve the technical problems that the desulfurization treatment of flue gas containing sulfur dioxide mostly adopts three methods: wet method, dry method and semi-dry method. The wet desulfurization will produce liquid and sludge, which are extremely difficult to clean. In addition, the heat in the high-temperature flue gas will be taken away during the wet desulfurization process, making it difficult to recover the heat. The semi-dry desulfurization efficiency is low and it is very easy to cause scaling and clogging of the system. The commonly used dry desulfurization is difficult to evenly mix the reactant with the flue gas for reaction, the reaction efficiency is low, and the absorption and utilization rate of the reactant is low.

[0004] To achieve the above-mentioned purpose, the specific technical scheme of a coke oven coal coking desulfurization device of the present invention is as follows:

[0005] A coke oven coal coking and desulfurization device comprises a tank body; a collecting cabinet is arranged at the bottom of the tank body; an air inlet pipe is arranged on one side of the lower part of the tank body and extends into the tank body; an air jet disk is arranged in the air inlet pipe inside the tank body; a plurality of air jet ports are arranged on the upper part of the air jet disk; a dust conveyor is arranged on one side of the tank body; a reactant storage tank is arranged on the dust conveyor; a dust conveying pipe is arranged at the output port of the dust conveyor and extends from one side of the upper part of the tank body to the inside of the tank body; a support frame is arranged at the upper part of the tank body; a powder dispersion cylinder is rotatably arranged in the middle part of the support frame; a plurality of powder dispersion ports are arranged circumferentially of the powder dispersion cylinder; the dust conveying pipe is connected with the powder dispersion cylinder; a plurality of first impellers are fixedly arranged in the vertical direction in the powder dispersion cylinder; a mounting ring is arranged at the upper part of the tank body; a filter screen is arranged in the mounting ring; an air outlet pipe is arranged extending outward from the top of the tank body; a filter cabinet is arranged at one end of the air outlet pipe away from the tank body and connected; a gas recovery pipe is arranged on one side of the filter cabinet.

[0006] Furthermore, a second impeller is rotatably arranged in the air jet port.

[0007] Furthermore, a through hole is provided in the middle of the first impeller.

[0008] Furthermore, support rods are provided at both sides of the top and bottom of the powder dispersion tube; spiral scrapers are provided at the ends of the multiple support rods near the inner wall of the tank body; and impact protrusions are provided on the upper parts of the support rods.

[0009] Furthermore, the filter screen is in the shape of an inverted cone with a middle portion lower than an outer portion; a plurality of springs are arranged on the upper and lower portions of the filter screen relative to the mounting ring.

[0010] Furthermore, the filter screen is provided with a plurality of vibration rods extending downwardly relative to the impact protrusion; the vibration rods are connected to the impact protrusion.

[0011] Furthermore, a plurality of activated carbon filter plates are arranged in the filter cabinet.

[0012] The coke oven coal coking desulfurization device of the present invention has the following advantages: an air intake pipeline is passed into the tank body and exhausts the flue gas through the jet disk and multiple jet ports, and the second impeller arranged in cooperation with the jet port evenly disperses the ejected flue gas in the tank body, which is convenient for evenly mixing the flue gas and the reactant to carry out the desulfurization reaction, thereby increasing the desulfurization efficiency and improving the absorption and utilization rate of the reactant; a dust conveying pipeline connected to the output port of the dust conveyor is extended into the tank body and connected to a powder dispersion cylinder arranged therein to cooperate with the first impeller, and the powder is sprayed to the position of the first impeller through the dust conveying pipeline, and the powder dispersion cylinder is driven to rotate, and at the same time, the reactant is evenly dispersed into the tank body through the powder dispersion port, and the reactant powder is dispersed by the rotating powder dispersion cylinder, so that the reactant can be evenly dispersed in the tank body, ensuring sufficient contact between the reactant and the flue gas, thereby improving the reaction efficiency, and the reactant is evenly and widely distributed in the tank body, which can increase the contact between the reactant and the reactant The contact area is large, thereby increasing the absorption and utilization rate of the reactants; the reaction products of the reactants and sulfur dioxide in the flue gas sometimes adhere to the inner wall of the tank body. When the multiple first impellers in the powder dispersion tube are pushed by the reactant-containing gas transported by the dust conveying pipeline, the powder dispersion tube will drive the support rod and the spiral scraper to rotate during the rotation process, and the reactants adhered to the inner wall of the desulfurization reaction area in the tank body will be scraped off, the inner wall of the tank body will be cleaned, the scaling of the tank body will be prevented, and the service life of the tank body will be increased; after the flue gas is desulfurized by the reactant reaction, it will be discharged through the air outlet pipe on the top of the tank body, and the fine reactants rising with the gas will be filtered by the filter screen. Through the rotation of the powder dispersion tube, the impact protrusion on the support rod will continuously impact the vibration rod arranged on the lower side of the filter screen, so that the filter screen will continuously vibrate in the mounting ring, and the reactants filtered by the filter screen will be vibrated off, thereby preventing the filter screen from being blocked and increasing the ventilation volume of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0015] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the middle A area;

[0016] Figure 4 For the present invention Figure 2 A magnified schematic diagram of the middle B area;

[0017] Figure 5 For the present invention Figure 2 Enlarged schematic diagram of the middle C area;

[0018] Figure 6 This is a schematic diagram of the installation structure of the activated carbon filter screen inside the filter cabinet of the present invention;

[0019] Explanation of markings in the figure: 1. Tank body; 2. Collection cabinet; 3. Air inlet pipe; 4. Jet disc; 5. Jet port; 6. Dust conveyor; 7. Reactant storage tank; 8. Dust conveying pipe; 9. Support frame; 10. Powder dispersion cylinder; 11. Powder dispersion port; 12. First impeller; 13. Mounting ring; 14. Filter screen; 15. Air outlet pipe; 16. Filter cabinet; 17. Gas recovery pipe; 18. Second impeller; 19. Support rod; 20. Spiral scraper; 21. Impact protrusion; 22. Spring; 23. Vibration rod; 24. Activated carbon filter plate. DETAILED DESCRIPTION

[0020] In order to better understand the purpose, structure and function of the present invention, a coke oven coal coking and desulfurization device of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0021] like Figure 1-6As shown, the present invention is a coke oven coal coking desulfurization device, comprising a tank body 1; a collecting cabinet 2 is arranged at the bottom of the tank body 1; an air intake pipe 3 is arranged on one side of the lower part of the tank body 1 and extends into the tank body 1; an air intake pipe 3 is arranged in the tank body 1 and is provided with an air jet disc 4; a plurality of air jets 5 are arranged on the upper part of the air jet disc 4, and a second impeller 18 is rotatably arranged in the air jets 5; a dust conveyor 6 is arranged on one side of the tank body 1; a reactant storage tank 7 is arranged on the dust conveyor 6; a dust conveying pipe 8 is arranged at the output port of the dust conveyor 6 and extends from one side of the upper part of the tank body 1 to the inside of the tank body 1; the upper part of the tank body 1 is provided with a dust conveying pipe 8 A support frame 9 is provided at the top; a powder dispersion cylinder 10 is rotatably provided at the middle of the support frame 9; a plurality of powder dispersion ports 11 are circumferentially provided at the powder dispersion cylinder 10; a dust conveying pipeline 8 is connected to the powder dispersion cylinder 10; a plurality of first impellers 12 are fixedly provided in the vertical direction inside the powder dispersion cylinder 10; a mounting ring 13 is provided at the upper part of the tank body 1; a filter screen 14 is provided in the mounting ring 13; an air outlet pipe 15 is extended outward from the top of the tank body 1; a filter cabinet 16 is connected to the end of the air outlet pipe 15 away from the tank body 1; a gas recovery pipe 17 is provided on one side of the filter cabinet 16.

[0022] Combination Figure 1-6 As shown, when in use, the air intake pipe 3 is passed into the tank body 1 and exhausts the flue gas through the jet disc 4 and multiple jet ports 5. The second impeller 18 arranged in cooperation with the jet ports 5 evenly disperses the ejected flue gas in the tank body 1, so that the flue gas and the reactant are evenly mixed to perform the desulfurization reaction, thereby increasing the desulfurization efficiency and the absorption and utilization rate of the reactant. At the same time, the dust conveyor 6 is started to convey the powder reactant in the reactant storage tank 7 into the tank body 1 through the dust conveying pipe 8 connected to the output port, and reaches the powder dispersing cylinder 10 connected to the dust conveying pipe 8. The first impeller 12 cooperates with the powder dispersing cylinder 10 to disperse the powder delivered through the dust conveying pipe 8. The reactant powder is sprayed to the position of the first impeller 12, which drives the powder dispersion cylinder 10 to rotate, and at the same time, the reactant is evenly dispersed into the tank body 1 through the powder dispersion port 11. The reactant powder is dispersed by the rotating powder dispersion cylinder 10, so that the reactant can be evenly dispersed in the tank body 1, and the flue gas evenly dispersed by the jet disk 4 and the jet port 5 is reacted to remove sulfur, ensuring sufficient contact between the reactant and the flue gas, improving the reaction efficiency, and the reactant is evenly and widely distributed in the tank body 1, which can increase the contact area between the reactant and the reactant, and increase the absorption and utilization rate of the reactant. The reactant after the reaction falls to the collection cabinet 2 for collection.

[0023] A through hole is provided in the middle of the first impeller 12, and the pressurized reactant powder introduced into the powder dispersion cylinder 10 through the dust conveying pipe 8 is sprayed onto the top first impeller 12, while the powder dispersion cylinder 10 is pushed to rotate, and the first impeller 12 disperses the reactant powder into the tank body 1 through the powder dispersion port 11. The pressurized reactant powder and the airflow pass through the through hole in the middle of the first impeller 12, continue downward to reach the multiple first impellers 12 in turn, and then disperse into the tank body 1 through the relative powder dispersion port 11, which has a good dispersion effect on the reactant powder and is more uniform.

[0024] Support rods 19 are extended to both sides of the top and bottom of the powder dispersion cylinder 10; spiral scrapers 20 are arranged at the ends of the multiple support rods 19 near the inner wall of the tank body 1. The reaction products of the reactants and sulfur dioxide in the flue gas sometimes adhere to the inner wall of the tank body 1. The multiple first impellers 12 in the powder dispersion cylinder 10 will push the powder dispersion cylinder 10 to rotate when pushed by the reactant-containing gas transported by the dust conveying pipe 8. During the rotation, the powder dispersion cylinder 10 drives the support rods 19 and the spiral scrapers 20 to rotate, scraping off the reactants adhered to the inner wall of the desulfurization reaction area in the tank body 1, cleaning the inner wall of the tank body 1, preventing the tank body 1 from scaling, and increasing the service life of the tank body 1.

[0025] An impact protrusion 21 is provided on the upper part of the support rod 19, and the filter 14 is an inverted cone with the middle position lower than the outer position; a plurality of springs 22 are provided on the upper and lower sides of the filter 14 relative to the mounting ring 13, and a plurality of vibration rods 23 are provided on the filter 14 extending downward relative to the impact protrusion 21; the vibration rod 23 is connected to the impact protrusion 21, and the flue gas will be discharged through the air outlet pipe 15 on the top of the tank body 1 after desulfurization through the reaction of the reactants, and the fine reactants rising with the gas will be filtered by the filter 14, and the powder dispersion cylinder 10 will rotate, and the impact protrusion 21 on the support rod 19 will continuously impact the vibration rod 23 provided on the lower side of the filter 14, so that the filter 14 will continuously vibrate under the stability of the springs 22 on both sides of the mounting ring 13, and the reactants filtered by the filter 14 will be vibrated and dropped, so as to prevent the filter 14 from being blocked and increase the ventilation volume of the filter 14.

[0026] A plurality of activated carbon filter plates 24 are arranged in the filter cabinet 16. The gas after desulfurization by the reactants is discharged from the tank body 1 upward through the gas outlet pipe 15 to reach the filter cabinet 16, and is filtered through the plurality of activated carbon filter plates 24 to further remove impurities contained in the gas, thereby increasing the purity of the recovered gas, and finally the gas is recovered through the gas recovery pipe 17.

[0027] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A coke oven coal coking and desulfurization device, characterized in that: The invention comprises a tank body (1); a collecting cabinet (2) is arranged at the bottom of the tank body (1); an air intake pipe (3) is arranged at one side of the lower part of the tank body (1) and extends into the tank body (1); an air intake pipe (3) is arranged at the tank body (1) and is provided with an air jet disc (4); a plurality of air jet ports (5) are arranged at the upper part of the air jet disc (4); a dust conveyor (6) is arranged at one side of the tank body (1); a reactant storage tank (7) is arranged on the dust conveyor (6); a dust conveying pipe (8) is arranged at the output port of the dust conveyor (6) and extends from one side of the upper part of the tank body (1) to the inside of the tank body (1); a support frame (9) is arranged at the upper part of the tank body (1); a dust conveyor (8) is arranged at the upper part of the tank body (1); a dust conveyor ... A powder dispersion cylinder (10) is rotatably arranged at the top of the tank body (1); a plurality of powder dispersion ports (11) are circumferentially arranged at the powder dispersion cylinder (10); a dust conveying pipeline (8) is connected to the powder dispersion cylinder (10); a plurality of first impellers (12) are fixedly arranged in the vertical direction inside the powder dispersion cylinder (10); a mounting ring (13) is arranged at the upper part of the tank body (1); a filter screen (14) is arranged inside the mounting ring (13); an air outlet pipeline (15) is extended outward from the top of the tank body (1); a filter cabinet (16) is connected to the end of the air outlet pipeline (15) away from the tank body (1); and a gas recovery pipeline (17) is arranged on one side of the filter cabinet (16).

2. A coke oven coal coking and desulfurization device according to claim 1, characterized in that: A second impeller (18) is rotatably arranged in the air jet port (5).

3. A coke oven coal coking and desulfurization device according to claim 1, characterized in that: A through hole is provided in the middle of the first impeller (12).

4. A coke oven coal coking and desulfurization device according to claim 1, characterized in that: The powder dispersion cylinder (10) is provided with support rods (19) extending to both sides at the top and bottom; spiral scrapers (20) are provided at the ends of the plurality of support rods (19) near the inner wall of the tank body (1); and impact protrusions (21) are provided on the upper parts of the support rods (19).

5. A coke oven coal coking and desulfurization device according to claim 4, characterized in that: The filter screen (14) is in the shape of an inverted cone with a middle portion lower than an outer portion; a plurality of springs (22) are arranged on the upper and lower portions of the filter screen (14) at positions opposite to the mounting ring (13).

6. A coke oven coal coking and desulfurization device according to claim 5, characterized in that: The filter screen (14) is provided with a plurality of vibration rods (23) extending downwardly relative to the impact protrusion (21); the vibration rods (23) are connected to the impact protrusion (21).

7. A coke oven coal coking and desulfurization device according to claim 1, characterized in that: A plurality of activated carbon filter plates (24) are arranged in the filter cabinet (16).

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