Tamping coke oven machine side coal charging smoke dissipation prevention system
By setting up a smoke barrier device and a capture system in the tamping coke oven, the problem of smoke and dust dissipation is solved, effective smoke and dust collection and resource utilization are achieved, and environmental pollution is reduced.
Patent Information
- Application Number
- CN202422986030.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-12-04
AI Technical Summary
During the coking process of the tamping coke oven, smoke and dust escaped a large amount from the furnace door on the side of the tamping machine, resulting in serious environmental pollution and it is difficult for the existing technology to effectively capture and utilize smoke and dust resources.
Soot blocking device and soot capture system are used, including air compressors, air pipes, jet nozzles, controllers, smoke guide pipes, coke powder sprayers, Mars traps and bag dust collectors, which block the smoke and dust from dissipating through the air wall, remove tar and capture Mars in the smoke guide pipe, and finally handle smoke and dust in the bag dust collector.
It realizes effective blocking and capture of smoke and dust, extends the service life of the bag dust collector, and uses the treated flue gas for heating to achieve full utilization of flue gas resources and reduces environmental pollution.
Smart Images
Figure CN223226013U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coke oven smoke treatment equipment, in particular to a ramming coke oven machine side-loaded coal smoke anti-escape system. Background Art
[0002] As the country places increasing emphasis on comprehensive resource utilization, more and more coking plants are choosing tamping coke ovens as their coking equipment. Before coking, different types of coal are proportioned, mixed, and crushed before being transported to a tamping loader. The tamping loader compacts the mixed coal layer by layer, creating briquettes. These briquettes are then fed into the coking chamber of the coke oven for high-temperature smelting to produce coke. A certain amount of low-quality coal can be added to the mixed coal to replace some of the higher-quality coal used for coking. This not only reduces coking costs but also improves the quality of the coke, even with the same coal blending conditions.
[0003] When coal cakes are fed into the coke oven carbonization chamber, smoke and dust are instantly generated due to the high temperature of the coke oven carbonization chamber. The smoke and dust mainly consists of raw coal gas, tar, sparks, etc. Since the tamping machine side furnace door is open, a large amount of smoke and dust escapes from the tamping machine side furnace door, which is very difficult to capture. The large amount of smoke and dust escapes and causes serious pollution to the atmospheric environment. Therefore, it is necessary to develop a smoke and dust prevention system for tamping coke oven side coal loading that has low smoke and dust emission, good smoke and dust capture effect, safe use, and easy implementation. Utility Model Content
[0004] The utility model aims to provide a smoke dust prevention system for side-loading coal of a ramming coke oven machine, which has the advantages of small smoke dust emission, good smoke dust collection effect, safe use and easy implementation.
[0005] The purpose of the utility model is achieved in this way, comprising a coke oven carbonization chamber, a tamping machine side furnace wall, a tamping coal loader and a ground dust removal station, the coke oven carbonization chamber close to the tamping coal loader side is the tamping machine side furnace wall, the tamping machine side furnace door is installed on the tamping machine side furnace wall, the tamping machine side furnace door above the tamping machine side furnace wall is installed with a smoke and dust barrier device, the smoke and dust barrier device comprises an air compressor, an air pipe, an air nozzle and a controller, the air compressor is connected to the air pipe, the lower part of the air pipe is provided with an air nozzle, the controller is used to control the start and stop of the air compressor, when the air compressor is started, the air nozzle ejects air flow to form an air wall;
[0006] A smoke guide pipe is installed on the top of the coke oven carbonization chamber, and an induced draft fan, a coke powder sprayer, a spark arrester and a bag dust collector are sequentially arranged on the smoke guide pipe;
[0007] A smoke dust collecting hood is provided above the coke oven carbonization chamber and the tamping coal loader, and the smoke dust collecting hood is connected to a ground dust removal station through a smoke dust conveying pipeline.
[0008] Furthermore, a gas guide groove is installed on the inner side of the tamping machine side furnace wall below the tamping machine side furnace door.
[0009] Furthermore, the tamping coal loader is provided with a vehicle-mounted dust collector.
[0010] Furthermore, the end of the gas wall flows toward the inner side of the tamping machine side furnace wall below the tamping machine side furnace door.
[0011] Compared with the existing technology, the advantages of this device are: first, the device is provided with a smoke barrier device, which can completely block the smoke generated in the coke oven carbonization chamber in the coke oven carbonization chamber, and no smoke will escape from the furnace door on the tamping machine side, thereby achieving a better coal-loading smoke prevention effect; second, the smoke generated in the coke oven carbonization chamber is guided through the smoke guide pipe, and the tar and other sticky components are removed by the coke powder sprayer, and the sparks carried are captured by the spark catcher, and finally enter the bag dust collector, which removes the coke powder, dust and other particulates in the smoke, and the treated smoke is sent to the gas pipeline for the coke oven itself. Heat not only solves the damage of sticky components such as tar and sparks to the bag-type dust collector, prolongs the service life of the bag-type dust collector, but also can fully mix the treated flue gas with the coal gas for heating the coke oven for combustion and heating of the coke oven. The treated flue gas can replace a part of the coke oven gas, thus realizing full and efficient utilization of coal gas resources. Thirdly, a vehicle-mounted dust collector is provided on the tamping coal loader, and a smoke collecting hood is provided above the coke oven carbonization chamber and the tamping coal loader, which can capture and treat a small amount of smoke that escapes outward when the coal cakes are entering the tamping machine side furnace door and the air compressor is closed, thereby further achieving a better effect of preventing the escape of coal loading smoke. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 Schematic diagram of the structure of the trachea 5.
[0014] In the figure: 1-coke oven carbonization chamber, 2-tamping machine side furnace wall, 3-tamping machine side furnace door, 4-gas guide groove, 5-gas pipe, 6-air nozzle, 7-gas wall, 8-air compressor, 9-controller, 10-smoke guide pipe, 11-induced draft fan, 12-coke powder sprayer, 13-bag dust collector, 14-smoke collection hood, 15-smoke conveying pipeline, 16-vehicle-mounted dust collector, 17-tamping coal loader, 18-ground dust removal station, 19-spark catcher. DETAILED DESCRIPTION
[0015] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited in any way. Any changes or improvements made based on the teachings of the present invention shall fall within the scope of protection of the present invention.
[0016] like Figures 1-2 As shown, the utility model includes a coke oven carbonization chamber 1, a tamping machine side furnace wall 2, a tamping coal loader 17 and a ground dust removal station 18. The coke oven carbonization chamber 1 is close to the tamping coal loader 17 on the side of the tamping machine side furnace wall 2. A tamping machine side furnace door 3 is installed on the tamping machine side furnace wall 2. A smoke and dust barrier device is installed on the tamping machine side furnace wall 2 above the tamping machine side furnace door 3. The smoke and dust barrier device includes an air compressor 8, an air pipe 5, an air nozzle 6 and a controller 9. The air compressor 8 is connected to the air pipe 5. The air nozzle 6 is provided at the lower part of the air pipe 5. The controller 9 is used to control the start and stop of the air compressor 8. When the air compressor 8 is started, the air nozzle 6 ejects air to form an air wall 7.
[0017] A smoke guide pipe 10 is installed on the top of the coke oven carbonization chamber 1, and an induced draft fan 11, a coke powder sprayer 12, a spark catcher 19 and a bag dust collector 13 are sequentially arranged on the smoke guide pipe 10;
[0018] A smoke dust collecting hood 14 is provided above the coke oven carbonization chamber 1 and the tamping coal loader 17 , and the smoke dust collecting hood 14 is connected to a ground dust removal station 18 via a smoke conveying pipe 15 .
[0019] The working process of the utility model is: when the coke oven needs to be loaded with coal, the tamping machine side furnace door 3 is removed, the tamping coal loader 17 is moved, the center of the compacted coal cake in the tamping coal loader 17 is aligned with the center of the coke oven carbonization chamber 1, the wall plate for fixing the coal cake is separated from the coal cake, and the coal cake pushing mechanism on the tamping coal loader 17 pushes the coal cake and sends it into the coke oven carbonization chamber 1. After the coal loading is completed, the tamping machine side furnace door 3 is sealed; when the tamping machine side furnace door 3 is removed, the air compressor 8 is started, and when the coal cake reaches the tamping machine side furnace door, the air compressor 8 is turned off, and the smoke dust collection hood 14 and the induced draft fan 11 are started at the same time. When the coal cake completely enters the tamping machine side furnace door 3, the air compressor 8 is started again, and when the tamping machine side furnace door 3 is closed, the air compressor 8 is turned off.
[0020] When the air compressor 8 is started, high-pressure gas is ejected from the air nozzle 6 at the bottom of the air pipe 5, forming a dense high-pressure gas wall 7 to block the smoke and dust escaping from the coke oven carbonization chamber 1. When the coal cakes are entering the furnace door 3 on the tamping machine side, the air compressor 8 is turned off to prevent the high-pressure gas ejected from the air nozzle 6 from impacting the coal cakes and generating more coal powder particles. When the air compressor 8 is turned off, the smoke collection hood 14 is started at the same time. The smoke collection hood 14 captures the smoke and dust escaping from the coke oven carbonization chamber 1 and is transported to the dust conveying pipe 15. The coal cakes are transported to the ground dust removal station 18 for processing; when the coal cakes reach the furnace door on the tamping machine side, the induced draft fan 11 is started at the same time. As the coal cakes encounter the high temperature in the coke oven carbonization chamber 1, a large amount of smoke and dust will be generated. The main components of the smoke and dust are raw coal gas, tar, sparks, etc. The induced draft fan 11 is started to form a negative pressure in the coke oven carbonization chamber 1. The smoke and dust generated in the coke oven carbonization chamber 1 enters the smoke guide pipe 10 under the action of the induced draft fan 11. The smoke guide pipe 10 is sequentially provided with a coke powder sprayer 12 and a spark catcher 19. and bag dust collector 13, start the induced draft fan 11 and start the coke powder sprayer 12 and the spark catcher 19 at the same time. When the smoke enters the smoke guide pipe 10, the coke powder sprayer 12 sprays the coke powder into the smoke guide pipe 10. In the smoke guide pipe 10, the coke powder is fully in contact with the tar and other sticky components carried by the smoke. The tar and other sticky components are adsorbed on the coke powder particles and enter the bag dust collector 13 with the air flow. The spark catcher 19 is set in front of the bag dust collector 13. Since the smoke contains sparks, such as If the sparks are not captured, they will directly enter the bag-type dust collector 13 along with the air flow, which may easily cause dangers such as fire and explosion; the smoke generated in the carbonization chamber 1 of the coke oven is guided through the smoke guide pipe 10, and the tar and other sticky components are removed by the coke powder sprayer 12, and then the sparks carried by the spark collector 19 are captured, and finally enter the bag-type dust collector 13, which removes the coke powder, dust and other particulate matter in the smoke, and the treated smoke is sent to the gas pipeline for heating the coke oven itself.
[0021] Furthermore, a gas guide groove 4 is installed on the inner side of the tamping machine side furnace wall 2 below the tamping machine side furnace door 3. The gas guide groove 4 is arc-shaped, and the center of the arc is above the gas guide groove 4. The end of the airflow ejected from the air nozzle 6 impacts the guide groove 4, and the airflow moves along the arc-shaped gas guide groove 4 to the top of the coke oven carbonization chamber 1, and sends the smoke generated in the coke oven carbonization chamber 1 into the smoke guide pipe 10.
[0022] Furthermore, the ramming coal loader 17 is provided with a vehicle-mounted dust collector 16 , which is in a normally open state. The ramming coal loader 17 captures and processes the dust generated when ramming the mixed coal and loading coal into the coke oven carbonization chamber 1 .
[0023] Furthermore, the end of the air wall 7 flows toward the inner side of the tamping machine side furnace wall 2 below the tamping machine side furnace door 3, and the air wall 7 will not cause impact on the tamping machine side furnace wall 2 below the tamping machine side furnace door 3, and the end of the air wall 7 just flows toward the inner side of the tamping machine side furnace wall 2 below the tamping machine side furnace door 3, which can completely block the smoke generated in the coke oven carbonization chamber 1 in the coke oven carbonization chamber 1. When the air compressor 8 is turned on, no smoke will escape from the tamping machine side furnace door 3, thereby achieving a better effect of preventing the escape of coal-loaded smoke.
Claims
1. A side-mounted coal smoke and dust prevention system for a tamping coke oven, characterized by: The invention comprises a coke oven carbonization chamber (1), a tamping machine side furnace wall (2), a tamping coal loader (17) and a ground dust removal station (18). The coke oven carbonization chamber (1) is provided with a tamping machine side furnace wall (2) on the side close to the tamping coal loader (17). A tamping machine side furnace door (3) is installed on the tamping machine side furnace wall (2). A smoke and dust barrier device is installed on the tamping machine side furnace wall (2) above the tamping machine side furnace door (3). The smoke and dust barrier device comprises an air compressor (8), an air pipe (5), an air nozzle (6) and a controller (9). The air compressor (8) is connected to the air pipe (5). An air nozzle (6) is provided at the lower part of the air pipe (5). The controller (9) is used to control the start and stop of the air compressor (8). When the air compressor (8) is started, the air nozzle (6) ejects air to form an air wall (7). A smoke guide pipe (10) is installed on the top of the coke oven carbonization chamber (1), and an induced draft fan (11), a coke powder sprayer (12), a spark catcher (19) and a bag dust collector (13) are sequentially arranged on the smoke guide pipe (10); A smoke dust collecting hood (14) is provided above the coke oven carbonization chamber (1) and the tamping coal loader (17), and the smoke dust collecting hood (14) is connected to a ground dust removal station (18) via a smoke dust conveying pipe (15).
2. The side-mounted coal smoke and dust prevention system for a stamping coke oven according to claim 1, characterized in that: A gas guide groove (4) is installed on the inner side of the tamping machine side furnace wall (2) below the tamping machine side furnace door (3).
3. The side-mounted coal smoke and dust prevention system for a stamping coke oven according to claim 1, characterized in that: The tamping coal loader (17) is provided with a vehicle-mounted dust collector (16).
4. The side-mounted coal smoke and dust prevention system for a stamping coke oven according to claim 1, characterized in that: The end of the gas wall (7) flows toward the inner side of the tamping machine side furnace wall (2) below the tamping machine side furnace door (3).