Spraying dust removal device of quenching tower
By designing a stepped flue gas channel and upper and lower opposite nozzles in the coke quenching tower, the problems of flue gas pollution and water resource waste during the wet coke quenching process are solved, and efficient spray dust removal and water resource recycling are achieved.
Patent Information
- Application Number
- CN202420995206.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-09
AI Technical Summary
During the wet coking quenching process, the discharged flue gas contains a large amount of dust and harmful substances to pollute the environment, and the water vapor in the discharged flue gas cannot be utilized, which leads to waste.
Design a spray dust removal device for the coke quenching tower, which extends the flue gas stroke through the stepped flue gas channel, and causes the sprayed water flow to collide with each other at the nozzles set up and down to form a diffusion, ensuring that the spray water and flue gas are fully contact, thereby improving the spray dust removal effect.
It effectively improves the dust removal effect of flue gas, reduces environmental pollution, and realizes the recycling of water resources by reusing the precipitated clean water.
Smart Images
Figure CN222374625U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of coke quenching and dust removal, and in particular relates to a coke quenching tower spray dust removal device. Background Art
[0002] In a coking and gasification plant, the final temperature of coal being dry-distilled into coke in the coke oven carbonization chamber is 950-1050℃. Therefore, the hot coke pushed out of the carbonization chamber must be extinguished to reduce its temperature to below 200℃ in order to avoid combustion and be suitable for transportation and storage, extend the life of the conveying equipment, and reduce the maintenance cost of the coking plant. At present, the coke quenching method commonly used in domestic coking and gasification plants is the wet coke quenching process. The wet coke quenching is to guide the hot coke pushed out of the carbonization chamber into the coke quenching car through the coke interceptor, and then tow it to the coke quenching tower by the electric locomotive for water spraying quenching. During the coke quenching process, the steam throws a large amount of dust and harmful chemicals into the air, causing serious pollution, and the exhaust flue gas contains a large amount of water vapor that cannot be used, resulting in waste. Summary of the invention
[0003] The utility model aims to solve the problems that in the wet quenching process, the flue gas discharged contains a large amount of dust and harmful substances which pollute the environment, and the water vapor in the discharged flue gas cannot be utilized and causes waste. The utility model provides a coke quenching tower spray dust removal device, which extends the flue gas travel through a stepped flue gas channel to ensure the dust removal effect, and makes the sprayed water flow collide and diffuse through the nozzles arranged relatively up and down to ensure the full contact between the spray water and the flue gas, thereby further improving the spray dust removal effect.
[0004] In order to achieve the above purpose, the technical solution of the utility model is:
[0005] A quenching tower spray dust removal device comprises a tower body, wherein a first fixing plate is fixedly arranged in the tower body, a second fixing plate is fixedly arranged at the lower end of the outer side of the first fixing plate by a plurality of connecting columns, the first fixing plate and the second fixing plate are both annular plates with hollow interiors and both form a truncated cone structure, the inner side of the first fixing plate is a smooth inclined surface, the outer side is arranged in a stepped shape, and a smoke outlet is arranged on the top, the inner side of the second fixing plate is arranged in a stepped shape and the top is closed, there is a gap between the second fixing plate and the inner wall of the tower body, there is a gap between the first fixing plate and the second fixing plate, forming a stepped flue gas passage, and annular nozzles are correspondingly arranged on the upper and lower opposite stepped surfaces in the flue gas passage, the stepped flue gas passage is used to extend the time of smoke spray dust removal, and the water flows sprayed from the upper and lower oppositely arranged nozzles collide and diffuse to ensure the spray dust removal effect.
[0006] A water pump is fixedly arranged on the side of the tower body, and the water pump is connected to a water inlet pipe and a water outlet pipe. The water outlet pipe extends into the tower body and is respectively fixedly connected to a first water outlet branch pipe and a second water outlet branch pipe. The first water outlet branch pipe passes through the top of the second fixed plate and is connected to the interior of the upper end of the first fixed plate. The second water outlet branch pipe is connected to the upper end of the second fixed plate. Water is transported to the first fixed plate and the second fixed plate by the water pump and sprayed out through the nozzle.
[0007] Preferably, a nozzle is provided on the outer side of the lower end of the second fixed plate to further spray the flue gas leaving the flue gas channel to improve the dust removal effect.
[0008] Preferably, at least two water outlets are provided on the side wall of the tower body, and the water outlets are located above the connection position between the first fixed plate and the tower body and below the outlet of the smoke channel. The water outlets are connected to a drain pipe, and the other end of the drain pipe extends out of the tower body and a water pool is provided below it. Each drain pipe is provided with a water outlet valve to collect and settle the sewage after spraying.
[0009] Preferably, the water inlet pipe is connected to a plurality of water inlet branches, each of which extends into a corresponding water pool, and each of the water inlet branches is provided with a water inlet valve, so that the upper layer of clear water after sedimentation is sprayed for dust removal.
[0010] Preferably, an adsorption filter layer is provided at the upper end of the tower body and an air outlet is provided at the top, so that smoke and water absorbed or removed by the spray water are blocked by the adsorption filter layer to reduce pollution.
[0011] Through the above technical solution, the beneficial effects of the utility model are:
[0012] 1. The utility model prolongs the formation of smoke and ensures the time for smoke to be sprayed and dusted, thereby improving the spraying and dust removal effect, through the stepped smoke channel surrounded by the first fixed plate and the second fixed plate.
[0013] 2. The utility model arranges a plurality of annular nozzles opposite to each other up and down on the stepped surfaces opposite to the first fixed plate and the second fixed plate, so that the spray water sprayed from the upper and lower nozzles collides in the smoke channel, and then the spray water quickly diffuses in the smoke channel, ensuring sufficient contact between the spray water and the smoke, and further improving the spray dust removal effect.
[0014] 3. The utility model further sprays and removes dust from the flue gas after it leaves the flue gas channel by means of an annular nozzle arranged on the outer side of the second fixed plate, thereby effectively ensuring and enhancing the spraying and dust removal effect.
[0015] 4. The utility model delivers water to the hollow first fixed plate and the second fixed plate through a water pump, and then the water accumulates in the hollow first fixed plate and the second fixed plate and is sprayed out through a nozzle, thereby ensuring the pressure of the water flow and the effect of rapid diffusion after collision, and further ensuring the spray dust removal effect on the flue gas.
[0016] 5. The utility model is provided with a plurality of discharge pipes, so that the sewage after the spray dust removal is discharged into the pool for collection and sedimentation, so as to be collected and reused.
[0017] 6. The utility model cooperates with valves and pipelines so that the water pump directly draws upper layer clear water from the water pool where sedimentation is completed for spraying and dust removal. On the one hand, the reuse of sewage after spraying and dust removal is realized. On the other hand, on the basis of sewage reuse, the opening and closing control between different valves is used to realize the continuous spraying and dust removal of the entire coke quenching tower. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .
[0019] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .
[0020] Figure 3 For this utility model Figure 2 A is an enlarged view of the figure.
[0021] Figure 4 It is a schematic diagram of the connection between the first fixing plate and the second fixing plate of the utility model.
[0022] The numbers in the accompanying drawings are: 1 is a tower body, 2 is a first fixed plate, 3 is a connecting column, 4 is a second fixed plate, 5 is a smoke outlet, 6 is a nozzle, 7 is a water pump, 8 is a water inlet pipe, 9 is a water outlet pipe, 10 is a first water outlet branch pipe, 11 is a second water outlet branch pipe, 12 is a drain pipe, 13 is a pool, 14 is a water outlet valve, 15 is a water inlet branch pipe, 16 is a water inlet valve, 17 is an adsorption filter layer, and 18 is an air outlet. DETAILED DESCRIPTION
[0023] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:
[0024] like Figure 1 to Figure 4As shown, the present embodiment provides a quenching tower spray dust removal device, including a tower body 1, wherein a first fixing plate 2 is fixedly arranged inside the tower body 1, and a second fixing plate 4 is fixedly arranged at the lower end of the outer side of the first fixing plate 2 through a plurality of connecting columns 3, and the first fixing plate 2 and the second fixing plate 4 are both annular plates with hollow interiors and are both surrounded by a truncated cone structure, the inner side of the first fixing plate 2 is a smooth inclined surface, the outer side is arranged in a stepped shape, and a smoke outlet 5 is arranged on the top, and the smoke generated by the quenching of the coke in the quenching tower passes upward through the smoke outlet 5 to the top of the first fixing plate 2, the inner side of the second fixing plate 4 is arranged in a stepped shape and the top is closed, and there is a gap between the second fixing plate 4 and the inner wall of the tower body 1 , which is used to supply smoke to the top of the second fixed plate 4 and then discharge it. There is a gap between the first fixed plate 2 and the second fixed plate 4, forming a stepped smoke channel. After the smoke reaches the top of the smoke outlet 5, it diffuses to the surroundings and enters the smoke channel. Along the stepped smoke channel, it reaches the outer side of the lower end of the second fixed plate 4 and continues to rise through the gap between the second fixed plate 4 and the inner wall of the tower body 1. Annular nozzles 6 are correspondingly arranged on the upper and lower opposite stepped surfaces in the smoke channel. The water sprayed by the nozzles sprays and dusts the smoke in the smoke channel, and the water flow sprayed by the opposite nozzles 6 collides and diffuses quickly between the two nozzles 6, further improving the spray dust removal effect.
[0025] A water pump 7 is fixedly arranged on the side of the tower body 1, and the water pump 7 is connected to a water inlet pipe 8 and a water outlet pipe 9. The water outlet pipe 9 extends into the tower body 1 and is respectively fixedly connected to a first water outlet branch pipe 10 and a second water outlet branch pipe 11. The first water outlet branch pipe 10 passes through the top of the second fixed plate 4 and is communicated with the interior of the upper end of the first fixed plate 2. The second water outlet branch pipe 11 is communicated with the upper end of the second fixed plate 4. Water is supplied to the water outlet pipe 9 through the water pump 7, and then water is continuously supplied to the first fixed plate 2 and the second fixed plate 4 through the first water outlet branch pipe 10 and the second water outlet branch pipe 11. As the water flow accumulates in the first fixed plate 2 and the second fixed plate 4, the water pressure increases, and then the water flow is sprayed from the nozzle 6 to realize spray dust removal.
[0026] A nozzle 6 is arranged on the outer side of the lower end of the second fixed plate 4. When the smoke leaving the smoke channel reaches the gap between the outer lower end of the second fixed plate 4 and the inner wall of the tower body 1, the smoke is dusted by the water flow sprayed from the nozzle 6. An adsorption filter layer 17 is arranged on the upper end of the tower body 1 and an air outlet 18 is arranged on the top. When the smoke after spraying and dust removal passes through the adsorption filter layer 17 upward, the smoke and impurities not absorbed by the spraying and dust removal are blocked, adsorbed and filtered by the adsorption filter layer 17, and then the remaining gas is discharged through the air outlet 18.
[0027] At least two water outlets are provided on the side wall of the tower body 1. The water outlets are located above the connection position between the first fixed plate 2 and the tower body 1 and directly below the outlet of the smoke channel. On the one hand, it is convenient for the dust removal sewage flowing out of the smoke channel to be discharged from the water outlet, and on the other hand, it is prevented from entering the water outlet after leaving the smoke channel. The water outlet is connected to a drain pipe 12, and the other end of the drain pipe 12 extends out of the tower body 1 and a water pool 13 is provided below it. The dust removal sewage flowing out of the water outlet flows into the water pool 13 through the drain pipe 12 and completes sedimentation in the water pool 13. Each drain pipe 12 is provided with a water outlet valve 14, and the opening and closing of the drain pipe 12 is controlled by the water outlet valve 14.
[0028] The water inlet pipe 8 is connected to a plurality of water inlet branches 15 , each of which extends into a corresponding water pool 13 . Each of the water inlet branches 15 is provided with a water inlet valve 16 , and the opening and closing of the corresponding water inlet branch 15 is controlled by the water inlet valve 16 to meet the demand of water inlet from different water pools 13 .
[0029] When quenching the coke, first open the water inlet valve 16 corresponding to one of the water pools 13, start the water pump 7, and the water in the water pool 13 reaches the first water outlet branch 10 and the second water outlet branch 11 through the water inlet branch 15, the water inlet pipe 8, the water pump 7, and the water outlet pipe 9, and enters the first fixed plate 2 and the second fixed plate 4 through the first water outlet branch 10 and the second water outlet branch 11 respectively, and flows to the lower ends of the first fixed plate 2 and the second fixed plate 4 under the action of its own gravity. With the continuous input of water flow, when the water in the first fixed plate 2 and the second fixed plate 4 overflows, it is sprayed out from the corresponding nozzles 6 under the action of water pressure, and the water sprayed from the nozzles 6 opposite to each other in the flue gas channel collides and quickly diffuses and then falls.
[0030] At the same time, the flue gas rises from the lower end of the tower body 1 to the smoke outlet 5 of the first fixed plate 2, then enters the smoke channel, and flows to the outer side of the lower end along the smoke channel. In this process, on the one hand, the water sprayed from the upper and lower corresponding nozzles 6 in the smoke channel collides and diffuses, and falls after fully contacting the smoke. On the other hand, the stepped smoke channel slows down the flow rate of the smoke and prolongs its formation, further ensuring full and effective contact with the spray water, thereby effectively spraying and dust-removing the smoke. The smoke leaving the smoke channel rises to the position of the adsorption and filtration layer 17 after further spraying by the nozzle 6 on the outer side of the second fixed plate 4, and leaves the tower body 1 from the air outlet 18 after adsorption and filtration of the residual smoke dust or impurities therein.
[0031] Open the outlet valve 14 of the drain pipe 12 corresponding to the other pool 13, and then the dust-removed sewage after spraying flows into the other pool 13 from the drain pipe 12. When the water in the inlet pool 13 is used up, close the inlet valve 16 of the original inlet branch pipe 15. After the dust-removed sewage in the pool 13 is separated by sedimentation, open the inlet valve 16 on the inlet branch pipe 15 corresponding to the pool 13 and close the corresponding outlet valve 14 to complete the replacement of the inlet pool 13. At the same time, open the outlet valve 14 corresponding to the original inlet pool 13 to complete the replacement of the outlet pool 13, thereby ensuring the reuse of the spray dust-removed sewage and the continuity of the spray dust removal.
[0032] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.
Claims
1. A quenching tower spray dust removal device, comprising a tower body (1), characterized in that: A first fixing plate (2) is fixedly arranged inside the tower body (1), and a second fixing plate (4) is fixedly arranged at the lower end of the outer side of the first fixing plate (2) via a plurality of connecting columns (3). The first fixing plate (2) and the second fixing plate (4) are both annular plates with hollow interiors and both form a truncated cone-shaped structure. The inner side of the first fixing plate (2) is a smooth inclined surface, the outer side is arranged in a stepped shape, and a smoke outlet (5) is arranged at the top. The inner side of the second fixing plate (4) is arranged in a stepped shape and the top is closed. There is a gap between the second fixing plate (4) and the inner wall of the tower body (1). There is a gap between the first fixing plate (2) and the second fixing plate (4), forming a stepped smoke passage. Annular nozzles (6) are correspondingly arranged on the upper and lower opposite stepped surfaces in the smoke passage. A water pump (7) is fixedly arranged on the side of the tower body (1); the water pump (7) is connected to a water inlet pipe (8) and a water outlet pipe (9); the water outlet pipe (9) extends into the tower body (1) and is respectively fixedly connected to a first water outlet branch pipe (10) and a second water outlet branch pipe (11); the first water outlet branch pipe (10) passes through the top of the second fixed plate (4) and is communicated with the interior of the upper end of the first fixed plate (2); and the second water outlet branch pipe (11) is communicated with the upper end of the second fixed plate (4).
2. A quenching tower spray dust removal device according to claim 1, characterized in that: A spray head (6) is arranged on the outer side of the lower end of the second fixing plate (4).
3. A quenching tower spray dust removal device according to claim 1, characterized in that: At least two water outlets are provided on the side wall of the tower body (1), the water outlets being located above the connection position between the first fixing plate (2) and the tower body (1) and directly below the outlet of the smoke passage, the water outlets being connected to a drainage pipe (12), the other end of the drainage pipe (12) extending out of the tower body (1) and having a water pool (13) disposed below the drainage pipe (12), and each drainage pipe (12) being provided with a water outlet valve (14).
4. A quenching tower spray dust removal device according to claim 3, characterized in that: The water inlet pipe (8) is connected to a plurality of water inlet branch pipes (15), each of the water inlet branch pipes (15) extends into a corresponding water pool (13), and each of the water inlet branch pipes (15) is provided with a water inlet valve (16).
5. A quenching tower spray dust removal device according to claim 1, characterized in that: An adsorption filter layer (17) is provided at the upper end of the interior of the tower body (1), and an air outlet (18) is provided at the top.