A coke oven gas separation and purification device

Abstract

This application belongs to the field of coke oven gas treatment technology and discloses a coke oven gas separation and purification device, including a purification box, a first filter screen, and a second filter screen. A material holding frame is slidably connected to the inner surface of the purification box, and activated carbon is filled inside the material holding frame. Two rotating shafts are rotatably connected to the lower side of the material holding frame inside the purification box. Control components for loosening the activated carbon filling layer are fixedly installed on the outer surface of the rotating shafts. Cleaning components for removing impurities from the surfaces of the first and second filter screens are rotatably installed below the first and second filter screens inside the purification box. The control components cause the material holding frame to vibrate up and down while the insert rod slides inside the material holding frame, loosening the activated carbon filling layer, preventing the pores of the filling layer from being blocked, ensuring the activity of the activated carbon and the air permeability of the filling layer, and improving the purification efficiency.

Description

Technical Field

[0001] This utility model relates to the field of coke oven gas treatment technology, and in particular to a coke oven gas separation and purification device. Background Technology

[0002] Coke oven gas is a combustible gas produced when coal undergoes high-temperature dry distillation in a coke oven. It is an important byproduct of the coking industry. During the coking process, coal undergoes a series of complex physical and chemical changes, releasing a large amount of gas in addition to producing coke. This is coke oven gas. Raw coke oven gas often contains various impurities such as sulfides, cyanides, ammonia, benzene, and dust particles, which are generally separated and purified by activated carbon.

[0003] After prolonged use, activated carbon will accumulate a large amount of various impurities on its surface, causing a sharp decline in its adsorption performance. This leads to blockage of the pores in the packing layer, a significant increase in gas flow resistance, and an inability to restore the activity of the activated carbon and the permeability of the packing layer in a timely manner, resulting in a continuous decrease in purification efficiency. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a coke oven gas separation and purification device.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a coke oven gas separation and purification device, comprising a purification chamber, a first filter screen, and a second filter screen. A base plate is fixedly installed on the lower surface of the purification chamber by bolts. Four support legs are fixedly connected to the lower surface of the base plate. An air inlet pipe is fixedly connected to the center of the lower surface of the base plate. A top plate is fixedly installed on the upper surface of the purification chamber by bolts. An air outlet pipe is fixedly connected to the center of the upper surface of the top plate. A material holding frame is slidably connected to the inner surface of the purification chamber. Activated carbon is filled inside the material holding frame. Two rotating shafts are rotatably connected to the lower side of the material holding frame inside the purification chamber. A control component for loosening the activated carbon filling layer is fixedly installed on the outer surface of the rotating shafts. Cleaning components for removing impurities from the surfaces of the first and second filter screens are rotatably installed below the first and second filter screens inside the purification chamber.

[0006] By adopting the above technical solution, coke oven gas enters the purification chamber through the inlet pipe and rises. When it passes through the second filter screen, it undergoes preliminary filtration of large particles of dust, coal slag, and other solid impurities mixed in with the gas. Then, the gas enters the material holding frame through the ventilation groove, allowing the gas to fully contact the activated carbon inside the holding frame for further purification. Subsequently, the gas continues to move upward and is discharged through the outlet pipe. The second filter screen prevents activated carbon powder from entering the outlet pipe with the airflow. The control component causes the holding frame to vibrate up and down while the insert rod slides inside the holding frame, loosening the activated carbon filling layer and preventing the pores of the filling layer from being blocked, thus ensuring the activity of the activated carbon and the permeability of the filling layer. The cleaning component cleans the impurities at the bottom of the first and second filters, ensuring the efficiency of gas transportation and purification.

[0007] Furthermore, the control component includes two centrifugal wheels, each fixedly connected to a different rotating shaft. A mounting bracket is fixedly connected to the right side of the purification chamber, and a motor is fixedly connected to the right side of the mounting bracket. The output end of the motor is fixedly connected to one of the rotating shafts. First synchronous pulleys are fixedly connected to the outer surfaces of both rotating shafts, and a first synchronous belt meshes between the outer surfaces of the two first synchronous pulleys. Three mounting plates are fixedly connected to the inner surface of the purification chamber below the material holding frame, and three springs are fixedly connected between each of the three mounting plates and the outer surface of the material holding frame. Six insert rods are fixedly connected to the upper surface of each of the three mounting plates, and the insert rods are slidably connected to the material holding frame. A ventilation groove is provided on the inner bottom surface of the material holding frame.

[0008] By adopting the above technical solution, the motor drives one of the rotating shafts and the first synchronous pulley to rotate, and through the action of the first synchronous belt, it drives the other first synchronous pulley and the rotating shaft to rotate synchronously, thereby driving the two centrifugal wheels to slide synchronously. When the centrifugal wheel rotates 180 degrees, the material holding frame slides upward inside the purification chamber and stretches the insertion rod. When the centrifugal wheel continues to rotate 180 degrees, the material holding frame slides downward inside the purification chamber under the elastic force of the insertion rod. The continuous rotation of the centrifugal wheel drives the material holding frame to slide back and forth inside the purification chamber. At the same time, the insertion rod slides back and forth inside the activated carbon inside the material holding frame to prevent the activated carbon from caking due to the accumulation of impurities and to maintain the adsorption performance of the activated carbon.

[0009] Furthermore, the cleaning component includes a threaded rod and a scraper. Both the first and second filter screens are fixedly connected to the purification chamber via bolts. Two threaded rods and two scrapers are provided. Both threaded rods are rotatably connected to the purification chamber. A limit rod is fixedly installed on one side of the threaded rod on the inner surface of the purification chamber. The scraper is threadedly connected to the threaded rod and slidably connected to the limit rod. One threaded rod and one end of one rotating shaft are fixedly connected to a second synchronous pulley. A second synchronous belt meshes between the outer surfaces of the two second synchronous pulleys. The other threaded rod and one end of another rotating shaft are fixedly connected to a third synchronous pulley. A third synchronous belt meshes between the outer surfaces of the two third synchronous pulleys.

[0010] By adopting the above technical solution, the two rotating shafts drive one of the second and third synchronous pulleys to rotate during rotation. At the same time, the second and third synchronous belts drive the two threaded rods to rotate synchronously. The rotation of the two threaded rods drives the two scrapers to slide on the outer surfaces of the two limit rods, thereby cleaning the impurities on the lower surfaces of the first and second filter screens. When the scraper moves to one end of the limit rod, the motor drives the rotating shaft to rotate in the opposite direction, which in turn drives the scraper to slide in the opposite direction to continue cleaning.

[0011] Furthermore, a sealing groove is provided between the purification chamber and the bottom plate and the top plate, and a sealing gasket is slidably connected to the inner surface of the sealing groove.

[0012] By adopting the above technical solution, the sealing gasket can effectively prevent gas leakage, ensure the safety and reliability of the device, and also avoid gas pollution to the environment.

[0013] In summary, this utility model has the following beneficial effects:

[0014] The control components cause the material holding frame to vibrate up and down while the insertion rod slides inside the frame, loosening the activated carbon filling layer and preventing the pores of the filling layer from being blocked. This ensures the activity of the activated carbon and the air permeability of the filling layer, thereby improving the purification efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 This is a front cross-sectional view of the purification chamber in an embodiment of this utility model;

[0017] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4This is a side sectional view of the material holding frame according to an embodiment of the present utility model;

[0019] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0020] Figure 6 This is a schematic diagram of the centrifugal wheel in an embodiment of this utility model;

[0021] Figure 7 This is a schematic diagram of the sealing gasket structure in an embodiment of this utility model.

[0022] In the diagram: 1. Purification chamber; 11. Base plate; 12. Support leg; 13. Air inlet pipe; 14. Top plate; 15. Air outlet pipe; 2. Material collection frame; 21. Rotating shaft; 22. Centrifugal wheel; 23. Mounting frame; 24. Motor; 25. First synchronous pulley; 26. First synchronous belt; 27. Mounting plate; 28. Insert rod; 29. ​​Spring; 210. Ventilation groove; 3. First filter screen; 31. Second filter screen; 32. Threaded rod; 33. Limiting rod; 34. Scraper; 35. Second synchronous pulley; 36. Second synchronous belt; 37. Third synchronous pulley; 38. Third synchronous belt; 4. Sealing groove; 41. Sealing gasket. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] like Figure 1-7 As shown in the embodiment of this application, a coke oven gas separation and purification device is disclosed, including a purification chamber 1, a first filter screen 3, and a second filter screen 31. A base plate 11 is fixedly installed on the lower surface of the purification chamber 1 by bolts. Four support legs 12 are fixedly connected to the lower surface of the base plate 11. An air inlet pipe 13 is fixedly connected to the center of the lower surface of the base plate 11. A top plate 14 is fixedly connected to the upper surface of the purification chamber 1 by bolts. An air outlet pipe 15 is fixedly connected to the center of the upper surface of the top plate 14. A material holding frame 2 is slidably connected to the inner surface of the purification chamber 1. Activated carbon is filled inside the material holding frame 2. Two rotating shafts 21 are rotatably connected to the lower side of the material holding frame 2 inside the purification chamber 1. A control component for loosening the activated carbon filling layer is fixedly installed on the outer surface of the rotating shafts 21. Cleaning components for removing impurities from the surfaces of the first filter screen 3 and the second filter screen 31 are rotatably installed inside the purification chamber 1 below the first filter screen 3 and the second filter screen 31.

[0025] By adopting the above technical solution, coke oven gas enters the interior of the purification chamber 1 through the inlet pipe 13 and rises. When it passes through the second filter screen 31, it undergoes preliminary filtration of large particles of dust, coal slag, and other solid impurities mixed in the gas. Then, the gas enters the interior of the holding frame 2 through the ventilation groove 210, allowing the gas to fully contact the activated carbon inside the holding frame 2 for further purification. Subsequently, the gas continues to move upward and is discharged through the outlet pipe 15. The second filter screen 31 prevents activated carbon powder from entering the outlet pipe with the airflow. The control component causes the holding frame 2 to vibrate up and down while the insertion rod 28 slides inside the holding frame 2, loosening the activated carbon filling layer and preventing the pores of the filling layer from being blocked, thus ensuring the activity of the activated carbon and the permeability of the filling layer. The cleaning component cleans the impurities at the bottom of the first filter screen 3 and the second filter screen 31, ensuring the efficiency of gas transportation and purification.

[0026] Furthermore, the control components include two centrifugal wheels 22, each fixedly connected to a rotating shaft 21. A mounting bracket 23 is fixedly connected to the right side of the purification chamber 1, and a motor 24 is fixedly connected to the right side of the mounting bracket 23. The output end of the motor 24 is fixedly connected to one of the rotating shafts 21. First synchronous pulleys 25 are fixedly connected to the outer surfaces of both rotating shafts 21, and a first synchronous belt 26 meshes between the outer surfaces of the two first synchronous pulleys 25. Three mounting plates 27 are fixedly connected to the inner surface of the purification chamber 1 below the material holding frame 2, and three springs 29 are fixedly connected between the three mounting plates 27 and the outer surface of the material holding frame 2. Six insert rods 28 are fixedly connected to the upper surface of each of the three mounting plates 27, and the insert rods 28 are slidably connected to the material holding frame 2. A ventilation groove 210 is provided on the inner bottom surface of the material holding frame 2.

[0027] By adopting the above technical solution, the motor 24 drives one of the rotating shafts 21 and the first synchronous pulley 25 to rotate, and through the action of the first synchronous belt 26, drives the other first synchronous pulley 25 and the rotating shaft 21 to rotate synchronously, thereby driving the two centrifugal wheels 22 to slide synchronously. The centrifugal wheel 22 rotates 180 degrees, and the material holding frame 2 slides upward inside the purification chamber 1 and stretches the insertion rod 28. The centrifugal wheel 22 continues to rotate 180 degrees, and the material holding frame 2 slides downward inside the purification chamber 1 under the elastic force of the insertion rod 28. The continuous rotation of the centrifugal wheel 22 drives the material holding frame 2 to slide back and forth inside the purification chamber 1. At the same time, the insertion rod 28 slides back and forth inside the activated carbon inside the material holding frame 2 to prevent the activated carbon from caking due to the accumulation of impurities and to maintain the adsorption performance of the activated carbon.

[0028] Furthermore, the cleaning components include a threaded rod 32 and a scraper 34. The first filter screen 3 and the second filter screen 31 are both fixedly connected to the purification chamber 1 by bolts. Two threaded rods 32 and two scrapers 34 are provided. Both threaded rods 32 are rotatably connected to the purification chamber 1. A limit rod 33 is fixedly installed on one side of the threaded rod 32 on the inner surface of the purification chamber 1. The scraper 34 is threadedly connected to the threaded rod 32 and slidably connected to the limit rod 33. One threaded rod 32 is fixedly connected to one end of one of the rotating shafts 21 with a second synchronous pulley 35. A second synchronous belt 36 meshes between the outer surfaces of the two second synchronous pulleys 35. Another threaded rod 32 is fixedly connected to one end of another rotating shaft 21 with a third synchronous pulley 37. A third synchronous belt 38 meshes between the outer surfaces of the two third synchronous pulleys 37.

[0029] By adopting the above technical solution, the two rotating shafts 21 drive one of the second synchronous pulleys 35 and the third synchronous pulley 37 to rotate during rotation. At the same time, under the action of the second synchronous belt 36 and the third synchronous belt 38, the two threaded rods 32 rotate synchronously. The rotation of the two threaded rods 32 drives the two scrapers 34 to slide on the outer surface of the two limit rods 33, thereby cleaning the impurities on the lower surface of the first filter screen 3 and the second filter screen 31. When the scraper 34 moves to one end of the limit rod 33, the motor 24 works to drive the rotating shaft 21 to rotate in the opposite direction, which can drive the scraper 34 to slide in the opposite direction to continue cleaning.

[0030] Furthermore, a sealing groove 4 is provided between the purification chamber 1 and the bottom plate 11 and the top plate 14, and a sealing gasket 41 is slidably connected to the inner surface of the sealing groove 4.

[0031] By adopting the above technical solution, the sealing gasket 41 can effectively prevent gas leakage, ensure the safety and reliability of the device, and also avoid gas pollution to the environment.

[0032] The working principle of the coke oven gas separation and purification device in this embodiment is as follows: Coke oven gas enters the purification chamber 1 through the inlet pipe 13 and rises upward. When it passes through the second filter screen 31, it undergoes preliminary filtration of large particles of dust, coal slag, and other solid impurities mixed in the gas. The gas then enters the material holding frame 2 through the ventilation groove 210, allowing the gas to fully contact the activated carbon inside the material holding frame 2 for further purification. Subsequently, the gas continues to move upward and is discharged through the outlet pipe 15. The second filter screen 31 prevents activated carbon powder from entering the outlet pipe with the airflow. After a period of use, the motor 24 drives one of the rotating shafts 21 and the first synchronous wheel 25 to rotate. Under the action of the first synchronous belt 26, the other first synchronous wheel 25 and the rotating shaft 21 rotate synchronously, thereby driving the two centrifugal wheels 22 to slide synchronously. The centrifugal wheels 22 rotate 180 degrees, and the material holding frame 2 slides upward inside the purification chamber 1, extending the insertion rod 28. The centrifugal wheel 22 continues to rotate 180 degrees, while the material holding frame 2 slides downward inside the purification chamber 1 under the elastic force of the insertion rod 28. The continuous rotation of the centrifugal wheel 22 drives the material holding frame 2 to slide back and forth inside the purification chamber 1. At the same time, the insertion rod 28 slides back and forth inside the activated carbon inside the material holding frame 2 to prevent the activated carbon from caking due to the accumulation of impurities and to maintain the adsorption performance of the activated carbon. During the rotation of the two rotating shafts 21, one of the second synchronous pulleys 35 and the other of the third synchronous pulley 37 are driven to rotate. At the same time, the two threaded rods 32 are driven to rotate synchronously under the action of the second synchronous belt 36 and the third synchronous belt 38. The rotation of the two threaded rods 32 drives the two scrapers 34 to slide on the outer surface of the two limit rods 33, thereby cleaning the impurities on the lower surface of the first filter screen 3 and the second filter screen 31. When the scraper 34 moves to one end of the limit rod 33, the motor 24 works to drive the rotating shaft 21 to rotate in the opposite direction, which drives the scraper 34 to slide in the opposite direction to continue cleaning.

[0033] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A coke oven gas separation and purification device, comprising a purification chamber (1), a first filter screen (3), and a second filter screen (31), wherein a base plate (11) is fixedly mounted on the lower surface of the purification chamber (1) by bolts, four support legs (12) are fixedly connected to the lower surface of the base plate (11), an air inlet pipe (13) is fixedly connected to the center of the lower surface of the base plate (11), a top plate (14) is fixedly connected to the upper surface of the purification chamber (1) by bolts, and an air outlet pipe (15) is fixedly connected to the center of the upper surface of the top plate (14), characterized in that: The inner surface of the purification chamber (1) is slidably connected to a material holding frame (2), and the inside of the material holding frame (2) is filled with activated carbon. Inside the purification chamber (1), two rotating shafts (21) are rotatably connected to the lower side of the material holding frame (2). The outer surface of the rotating shafts (21) is fixedly provided with a control component for loosening the activated carbon filling layer. Inside the purification chamber (1), below the first filter screen (3) and the second filter screen (31), cleaning components are rotatably provided for removing impurities from the surface of the first filter screen (3) and the second filter screen (31).

2. The coke oven gas separation and purification device according to claim 1, characterized in that: The control component includes a centrifugal wheel (22), and there are two centrifugal wheels (22). The two centrifugal wheels (22) are fixedly connected to two rotating shafts (21) respectively. A mounting bracket (23) is fixedly connected to the right side of the purification box (1). A motor (24) is fixedly connected to the right side of the mounting bracket (23). The output end of the motor (24) is fixedly connected to one of the rotating shafts (21). The outer surfaces of the two rotating shafts (21) are fixedly connected to a first synchronous pulley (25). A first synchronous belt (26) meshes between the outer surfaces of the two first synchronous pulleys (25). Three mounting plates (27) are fixedly connected to the inner surface of the purification box (1) below the material holding frame (2). Three springs (29) are fixedly connected between the three mounting plates (27) and the outer surface of the material holding frame (2).

3. The coke oven gas separation and purification device according to claim 2, characterized in that: Six rods (28) are fixedly connected to the upper surface of each of the three mounting plates (27). The rods (28) are slidably connected to the material holding frame (2). The inner bottom surface of the material holding frame (2) is provided with a ventilation groove (210).

4. The coke oven gas separation and purification device according to claim 3, characterized in that: The cleaning component includes a threaded rod (32) and a scraper (34). The first filter screen (3) and the second filter screen (31) are both fixedly connected to the purification box (1) by bolts. There are two threaded rods (32) and two scrapers (34). The two threaded rods (32) are rotatably connected to the purification box (1). A limit rod (33) is fixedly provided on one side of the threaded rod (32) on the inner surface of the purification box (1). The scraper (34) is threadedly connected to the threaded rod (32). The scraper (34) is slidably connected to the limit rod (33).

5. A coke oven gas separation and purification device according to claim 4, characterized in that: one of them The threaded rod (32) and one end of one of the rotating shafts (21) are fixedly connected to a second synchronous pulley (35), and a second synchronous belt (36) is meshed between the outer surfaces of the two second synchronous pulleys (35). The other threaded rod (32) and one end of the other rotating shaft (21) are fixedly connected to a third synchronous pulley (37), and a third synchronous belt (38) is meshed between the outer surfaces of the two third synchronous pulleys (37).

6. The coke oven gas separation and purification device according to claim 5, characterized in that: A sealing groove (4) is provided between the purification box (1) and the bottom plate (11) and the top plate (14), and a sealing gasket (41) is slidably connected to the inner surface of the sealing groove (4).

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