Blockage removing device for coke oven flue gas rising pipeline

Abstract

The utility model relates to the technical field of ascending pipeline blockage clearing, in particular to a blockage clearing device for a coke oven flue gas ascending pipeline, which comprises an end cover, a gas inlet pipe is arranged on one side of the end cover, one end of the gas inlet pipe is sealed by the end cover, the other end of the gas inlet pipe is a gas inlet end, and a gas outlet pipe is communicated with the gas inlet pipe. The end, away from the air inlet pipe, of the air outlet pipe is an air outlet end, an arc-shaped scraper is arranged on the side, close to the air inlet end, of the end cover, a driving rod is arranged on the arc-shaped scraper and penetrates through the end cover, and a driving assembly is arranged between the driving rod and the end cover and used for making the driving rod and the end cover move relatively. The method has the effect of reducing the frequency of blowing out the furnace to clean the rising pipeline.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the unblocking of the ascending pipeline, especially to a coke oven flue gas ascending pipeline unblocking device. BACKGROUND

[0002] In the process of the coking flue gas flowing along the ascending pipeline, the temperature of the coking flue gas will gradually decrease. Since the coking flue gas contains tar, the tar in the coking flue gas will condense and thus adhere to the inner wall of the ascending pipeline, causing the ascending pipeline to be prone to blockage.

[0003] After the ascending pipeline is blocked, the coking flue gas cannot be smoothly discharged from the inside of the hearth, so the staff need to periodically shut down the furnace to disassemble and clean the ascending pipeline. However, shutting down the furnace will cause the hearth brick lining to expand and contract due to temperature changes, thereby shortening the service life of the coke oven and increasing equipment maintenance costs. SUMMARY

[0004] In order to reduce the frequency of cleaning the ascending pipeline by shutting down the furnace, the present application provides a coke oven flue gas ascending pipeline unblocking device.

[0005] The coke oven flue gas ascending pipeline unblocking device provided by the present application adopts the following technical solution:

[0006] A coke oven flue gas ascending pipeline unblocking device comprises an end cover, an air inlet pipe is arranged on one side of the end cover, the end cover seals one end of the air inlet pipe, the other end of the air inlet pipe is an air inlet end, an air outlet pipe is communicatively arranged on the air inlet pipe, the end of the air outlet pipe away from the air inlet pipe is an air outlet end, an arc-shaped scraper is arranged on the side of the end cover close to the air inlet end, a driving rod is arranged on the arc-shaped scraper, the driving rod penetrates the end cover, and a driving assembly is arranged between the driving rod and the end cover, which is used to move the driving rod and the end cover relative to each other.

[0007] By adopting the above technical solution, the air inlet pipe and the air outlet pipe are connected to the ascending pipeline, and the coking flue gas in the ascending pipeline moves from the air inlet end to the air outlet end. When the tar adhering to the inner wall of the ascending pipeline is cleaned, the driving assembly drives the driving rod and the end cover to move relative to each other, and the end cover remains relatively stationary with the ascending pipeline. Therefore, the driving rod drives the arc-shaped scraper to move in the ascending pipeline, the arc-shaped scraper scrapes the tar adhering to the inner wall of the ascending pipeline, the tar is scraped away from the inner wall of the ascending pipeline, the gradual accumulation of tar on the inner wall of the ascending pipeline is reduced, and the frequency of cleaning the ascending pipeline by shutting down the furnace is reduced.

[0008] Preferably, a sealing hole is formed in the end cover, the driving rod is inserted into the sealing hole, a graphite packing layer is arranged on the inner wall of the sealing hole, and the graphite packing layer and the outer wall of the driving rod are in close contact with each other.

[0009] By adopting the above technical scheme, the graphite filler layer seals the gap between the driving rod and the sealing hole during the movement of the driving rod along the end cover, thereby reducing the escape of the coking flue gas in the rising pipeline to the outside.

[0010] Preferably, the driving assembly comprises a driving motor, a driving gear and a driving rack, the output shaft of the driving motor is fixedly connected with the driving gear, the driving rack is in mesh with the driving gear, a support is arranged on the end cover, the air inlet pipe and the air outlet pipe, the driving motor is fixedly arranged on the support, and the driving rack is fixedly arranged at the end of the driving rod away from the arc-shaped scraper.

[0011] By adopting the above technical scheme, the driving motor drives the driving gear to rotate, the driving gear drives the driving rack to move, and the driving rack drives the driving rod to move.

[0012] Preferably, upper and lower limit switches are arranged on the driving rack, the upper limit switch is located above the driving gear, the lower limit switch is located below the driving gear, and the upper and lower limit switches are used for controlling the driving motor.

[0013] By adopting the above technical scheme, during the movement of the driving rack driving the driving rod, the driving rack drives the upper and lower limit switches to move, the driving rack stops moving closer to the end cover when the upper limit switch is triggered, and the driving rack stops moving away from the end cover when the lower limit switch is triggered, thereby achieving the effect of controlling the moving stroke of the arc-shaped scraper.

[0014] Preferably, an adjusting seat is fixedly arranged on the upper and lower limit switches, an adjusting hole is formed in the adjusting seat, an adjusting bolt is inserted into the adjusting hole, and a plurality of adjusting grooves are formed in the driving rack and used for threadedly connecting with the adjusting bolt.

[0015] By adopting the above technical scheme, when the adjusting bolt is threadedly connected with the adjusting hole and the adjusting groove, the adjusting seat is mounted on the driving rack, thereby achieving the effect of mounting the upper and lower limit switches on the driving rack, and the moving stroke of the arc-shaped scraper can be adjusted by adjusting the positions of the upper and lower limit switches.

[0016] Preferably, a guide sleeve is fixedly arranged on the support, the driving rack is inserted into the guide sleeve, a guide groove is formed in the driving rack, a guide block is slidably arranged in the guide groove, and the guide block is fixedly connected with the guide sleeve.

[0017] By adopting the above technical scheme, during the movement of the driving rack driving the driving rod, the guide groove moves along the guide block, thereby achieving the effect of moving the driving rack in a set direction.

[0018] As preferred, the driving motor is fixedly arranged on the guide sleeve, an output shaft of the driving motor penetrates a side wall of the guide sleeve, the output shaft of the driving motor is rotationally connected with the side wall of the guide sleeve, and the driving gear is rotationally arranged in the guide sleeve.

[0019] By adopting the above technical scheme, the guide sleeve protects the driving gear.

[0020] As preferred, a piston cylinder is fixedly arranged on the guide sleeve, an output shaft of the piston cylinder penetrates another side wall of the guide sleeve, the output shaft of the piston cylinder is slidingly connected with the side wall of the guide sleeve, a friction disc is fixedly arranged on the output shaft of the piston cylinder, the friction disc is arranged in the guide sleeve, and the friction disc is arranged away from the piston cylinder and is used for abutting against the driving gear away from the driving motor.

[0021] By adopting the above technical scheme, when the driving rack stops moving, the output shaft of the piston cylinder is elongated, the friction disc is abutted against the driving gear, and the driving gear is not easy to rotate, when the driving rack moves, the output shaft of the piston cylinder is shortened, and the friction disc is separated from the driving gear.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. By arranging the end cover, the air inlet pipe, the air inlet end, the air outlet pipe, the air outlet end, the arc-shaped scraper, the driving rod and the driving assembly, the frequency of cleaning the rising pipe of the shutdown is reduced.

[0024] 2. By arranging the driving motor, the driving gear, the driving rack and the support, the driving rod and the end cover are relatively moved.

[0025] 3. By arranging the upper limit switch and the lower limit switch, the effect of controlling the moving stroke of the arc-shaped scraper is realized. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 is a sectional view of a coking oven flue gas rising pipe cleaning device in the embodiment of the present application.

[0027] Fig. 2 is a sectional view of the connection relationship between the driving rack and the guide sleeve in the embodiment of the present application.

[0028] Fig. 3 is a sectional view of the position relationship between the upper limit switch and the lower limit switch in the embodiment of the present application.

[0029] Explanation of reference signs: 1, end cover; 11, sealing hole; 12, graphite packing layer; 2, air inlet pipe; 21, air inlet end; 3, air outlet pipe; 31, air outlet end; 4, arc-shaped scraper; 41, concave surface; 42, convex surface; 5, driving rod; 6, driving assembly; 61, driving motor; 62, driving gear; 621, friction disc; 622, piston cylinder; 63, driving rack; 631, upper limit switch; 632, lower limit switch; 7, support; 71, guide sleeve; 72, guide groove; 73, guide block; 8, adjusting seat; 81, adjusting hole; 82, adjusting bolt; 83, adjusting groove. DETAILED DESCRIPTION

[0030] The following will be described in detail with reference to the accompanying drawings. Figs. 1-3 The present application is further described in detail.

[0031] The present application discloses a kind of coke oven flue riser pipe is used to clear blockage device. Refer to Fig. 1 Including end cover 1, end cover 1 is set up sealing hole 11, sealing hole 11 is inserted and is arranged driving rod 5.Driving rod 5 and end cover 1 between setting driving assembly 6, driving assembly 6 is used to make driving rod 5 and end cover 1 relative movement.Sealing hole 11 inner wall is equipped with graphite packing layer 12, graphite packing layer 12 and driving rod 5 outer wall mutually adhere.In the process of driving rod 5 along end cover 1 moves, graphite packing layer 12 seals the gap between driving rod 5 and sealing hole 11.End cover 1 one side installs air inlet pipe 2, end cover 1 closes one end of air inlet pipe 2, and the other end of air inlet pipe 2 is air inlet end 21.Air inlet pipe 2 side wall is installed air outlet pipe 3, and one end of air outlet pipe 3 is communicated with air inlet pipe 2, and the other end of air outlet pipe 3 is air outlet end 31.Air inlet pipe 2 and air outlet pipe 3 are connected into riser pipe, and the coking flue gas in riser pipe moves from air inlet end 21 to air outlet end 31.Driving rod 5 one end installs arc-shaped scraper 4, and arc-shaped scraper 4 is located in the side of end cover 1 close to air inlet end 21.Arc-shaped scraper 4 side away from driving rod 5 is concave surface 41, and arc-shaped scraper 4 side towards driving rod 5 is convex surface 42, and the edge of concave surface 41 and the edge of convex surface 42 intersect.When the tar attached to the inner wall of riser pipe is cleaned, driving assembly 6 drives driving rod 5 and end cover 1 relative movement, and end cover 1 keeps relative static with riser pipe, so driving rod 5 drives arc-shaped scraper 4 to move in riser pipe.Arc-shaped scraper 4 scrapes the tar attached in riser pipe, and the tar is scraped away from the inner wall of riser pipe, reduces the situation that tar gradually accumulates in the inner wall of riser pipe and makes riser pipe blockage, reduces the frequency of blowing down and cleaning riser pipe.

[0032] In order to make driving rod 5 and end cover 1 relative movement, refer to Fig. 1 And Fig. 2The driving assembly 6 comprises a driving motor 61, a driving gear 62 and a driving rack 63. The output shaft of the driving motor 61 is fixedly connected with the driving gear 62, and the driving rack 63 is in mesh with the driving gear 62. The bracket 7 is mounted on the end cover 1, the air inlet pipe 2 and the air outlet pipe 3, the driving motor 61 is mounted on the bracket 7, and the driving rack 63 is mounted on the driving rod 5 away from the arc-shaped scraper 4. The driving motor 61 drives the driving gear 62 to rotate, the driving gear 62 drives the driving rack 63 to move, and the driving rack 63 drives the driving rod 5 to move.

[0033] In order to limit the moving stroke range of the arc-shaped scraper in the rising pipeline, referring to Figs. 1 to 3 The upper limit switch 631 is mounted above the driving gear 62, and the lower limit switch 632 is mounted below the driving gear 62. Both the upper limit switch 631 and the lower limit switch 632 are used for controlling the driving motor 61. The adjusting seat 8 is mounted on the upper limit switch 631 and the lower limit switch 632, the adjusting hole 81 is formed in the adjusting seat 8, and the adjusting bolt 82 is inserted into the adjusting hole 81. The adjusting groove 83 is formed in the driving rack 63, and the adjusting groove 83 is used for being threadedly connected with the adjusting bolt 82. When the adjusting bolt 82 is threadedly connected with the adjusting groove 83 through the adjusting hole 81, the adjusting seat 8 is mounted on the driving rack 63, so that the upper limit switch 631 and the lower limit switch 632 are mounted on the driving rack 63. In the moving process of the driving rod 5 driven by the driving rack 63, the driving rack 63 drives the upper limit switch 631 and the lower limit switch 632 to move. When the upper limit switch 631 is triggered, the driving rack 63 stops moving close to the end cover 1. When the lower limit switch 632 is triggered, the driving rack 63 stops moving away from the end cover 1. By adjusting the positions of the upper limit switch 631 and the lower limit switch 632, the moving stroke range of the arc-shaped scraper in the rising pipeline is limited.

[0034] In order to improve the stability of the driving rack 63, referring to Fig. 1 and Fig. 2The casing of the driving motor 61 is provided with a guide sleeve 71, the output shaft of the driving motor 61 penetrates through one side wall of the guide sleeve 71, and the output shaft of the driving motor 61 is rotationally connected with the side wall of the guide sleeve 71. The driving gear 62 is rotationally arranged in the guide sleeve 71, and the guide sleeve 71 protects the driving gear 62. The piston cylinder 622 is arranged on the guide sleeve 71, the output shaft of the piston cylinder 622 penetrates through the other side wall of the guide sleeve 71, and the output shaft of the piston cylinder 622 is slidingly connected with the side wall of the guide sleeve 71. The friction disc 621 is arranged on the output shaft of the piston cylinder 622, the friction disc 621 is located in the guide sleeve 71, and the friction disc 621 is arranged at the end away from the piston cylinder 622 and is used for abutting against the end of the driving gear 62 away from the driving motor 61. When the driving rack 63 stops moving, the output shaft of the piston cylinder 622 is elongated, the friction disc 621 is abutted against the driving gear 62, and the driving gear 62 is not easy to rotate. When the driving rack 63 moves, the output shaft of the piston cylinder 622 is shortened, and the friction disc 621 is separated from the driving gear 62. The driving rack 63 is inserted in the guide sleeve 71, the guide groove 72 is formed in the driving rack 63, the guide block 73 is slidingly arranged in the guide groove 72, and the guide block 73 is welded with the guide sleeve 71. During the movement of the driving rack 63 and the driving rod 5, the guide groove 72 moves along the guide block 73, so that the driving rack 63 moves in the set direction.

[0035] The implementation principle of the coking oven flue rising pipeline blockage cleaning device is as follows: when the tar attached to the inner wall of the rising pipeline is cleaned, the driving motor 61 is started to drive the driving gear 62 to rotate, the driving gear 62 drives the driving rack 63 to move, and the driving rack 63 drives the driving rod 5 to move. The arc-shaped scraper 4 is driven by the driving rod 5 to move in the rising pipeline, the arc-shaped scraper 4 scrapes the tar attached to the rising pipeline, the tar is scraped away from the inner wall of the rising pipeline, the gradual accumulation of the tar on the inner wall of the rising pipeline is reduced, the rising pipeline is prevented from being blocked, and the frequency of cleaning the rising pipeline is reduced.

[0036] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, and therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A clearing device for a coke oven flue gas rising pipe, comprising an end cap, characterized in that: An air inlet pipe is provided on one side of the end cap, and the end cap seals one end of the air inlet pipe. The other end of the air inlet pipe is the air inlet end. An air outlet pipe is connected to the air inlet pipe, and the end of the air outlet pipe away from the air inlet pipe is the air outlet end. An arc-shaped scraper is provided on the side of the end cap near the air inlet end. A drive rod is provided on the arc-shaped scraper. The drive rod passes through the end cap. A drive assembly is provided between the drive rod and the end cap. The drive assembly is used to make the drive rod and the end cap move relative to each other.

2. The unblocking device for a coke oven flue gas rising pipe according to claim 1, characterized in that: A sealing hole is provided on the end cap, and the drive rod is inserted into the sealing hole. A graphite filler layer is provided on the inner wall of the sealing hole, and the graphite filler layer is in contact with the outer wall of the drive rod.

3. The unblocking device for a coke oven flue gas rising pipe according to claim 1, characterized in that: The drive assembly includes a drive motor, a drive gear, and a drive rack. The output shaft of the drive motor is fixedly connected to the drive gear, and the drive rack meshes with the drive gear. A bracket is provided on the end cover, the air inlet pipe, and the air outlet pipe. The drive motor is fixedly mounted on the bracket, and the drive rack is fixedly mounted on the end of the drive rod away from the arc-shaped scraper.

4. The unblocking device for a coke oven flue gas rising pipe according to claim 3, characterized in that: An upper limit switch and a lower limit switch are provided on the drive rack. The upper limit switch is located above the drive gear, and the lower limit switch is located below the drive gear. Both the upper limit switch and the lower limit switch are used to control the drive motor.

5. A clearing device for a coke oven flue gas rising pipe according to claim 4, characterized in that: Both the upper limit switch and the lower limit switch are fixedly equipped with adjustment seats. The adjustment seats have adjustment holes, and adjustment bolts are inserted into the adjustment holes. The drive rack has several adjustment slots, which are used for threaded connection with the adjustment bolts.

6. A clearing device for a coke oven flue gas rising pipe according to claim 3, characterized in that: A guide sleeve is fixedly installed on the bracket, a drive rack is inserted into the guide sleeve, a guide groove is opened on the drive rack, a guide block is slidably installed in the guide groove, and the guide block is fixedly connected to the guide sleeve.

7. A clearing device for a coke oven flue gas rising pipe according to claim 6, characterized in that: The drive motor is fixedly mounted on the guide sleeve. The output shaft of the drive motor passes through one side wall of the guide sleeve and is rotatably connected to the side wall of the guide sleeve. The drive gear is rotatably mounted inside the guide sleeve.

8. A clearing device for a coke oven flue gas rising pipe according to claim 7, characterized in that: A piston cylinder is fixedly installed on the guide sleeve. The output shaft of the piston cylinder passes through the other side wall of the guide sleeve. The output shaft of the piston cylinder is slidably connected to the side wall of the guide sleeve. A friction disc is fixedly installed on the output shaft of the piston cylinder. The friction disc is installed inside the guide sleeve. The end of the friction disc away from the piston cylinder is used to abut against the end of the drive gear away from the drive motor.

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