Smoking prevention device for coke oven bridge pipe turning plate shaft

Abstract

The utility model discloses a coke oven bridge pipe turning plate shaft anti-smoking device which comprises a shaft sleeve front gland, a shaft sleeve and a shaft sleeve outer gland, the shaft sleeve outer gland is installed on a turning plate shaft shell, one end of the shaft sleeve penetrates through the shaft sleeve outer gland and is located at the position of the turning plate shaft shell, and the shaft sleeve front gland is installed at the front end of the shaft sleeve. An oil duct is arranged at the upper end of the shaft sleeve, an oil groove I is formed in the shaft sleeve relative to the turning plate shaft, an oil groove II is formed in the shaft sleeve relative to a turning plate shaft shell, the oil groove I is communicated with the oil duct, and a grease nipple is mounted at the oil duct; the oil groove I and the oil groove II are filled with the lubricating grease to play a sealing role, the packing plays an auxiliary sealing role, the high-temperature lubricating grease can be filled in gaps generated by abrasion or looseness of the packing at any time to prevent raw gas from overflowing, the lubricating grease can also play a role in relieving abrasion, and the later maintenance is very convenient.

Description

Technical Field

[0001] This utility model relates to the field of coke oven equipment maintenance, and more specifically, to a smoke prevention device for the flap shaft of a coke oven bridge tube. Background Technology

[0002] The original design of the coke oven riser pipe flap shaft used a bushing to press the packing for sealing. However, because the inner side of the shaft seal comes into contact with high-temperature raw coal gas (around 650°C) from the carbonization chamber, the packing hardens under the high temperature. Simultaneously, the raw coal gas corrodes the flap shaft, damaging its surface smoothness. Furthermore, the flap shaft needs frequent rotation, quickly creating gaps between the flap shaft and the packing. Raw coal gas then escapes from these gaps, causing environmental pollution. Smoke from the flap shaft necessitates immediate packing replacement, but the frequent replacements and the high temperature and confined space make the work extremely difficult. Utility Model Content

[0003] To solve the above problems, the present invention adopts the following technical solution.

[0004] This utility model discloses a smoke prevention device for a coke oven bridge tube flap shaft, including a front pressure cover for the sleeve, a sleeve, and an outer pressure cover for the sleeve. The outer pressure cover for the sleeve is installed on the flap shaft housing. One end of the sleeve passes through the outer pressure cover for the sleeve and is located at the flap shaft housing. The front pressure cover for the sleeve is installed at the front end of the sleeve. The flap shaft passes through the front pressure cover for the sleeve, the sleeve, and the outer pressure cover for the sleeve. An oil passage is provided at the upper end of the sleeve. An oil groove one is provided on the sleeve relative to the flap shaft, and an oil groove two is provided on the sleeve relative to the flap shaft housing. The oil groove one and the oil groove two are connected. The oil groove one is connected to the oil passage. A grease nipple is installed at the oil passage.

[0005] Furthermore, the front cover of the bushing is a disc structure, with a flap shaft through hole in the middle, a packing groove at the rear end of the flap shaft through hole, and a bolt mounting hole on the front cover of the bushing. The front cover of the bushing is connected to the bushing by several bolts.

[0006] Furthermore, the bushing includes a bushing body and a bushing connecting plate. The bushing body is installed in the middle of the bushing connecting plate. The bushing body has a circular ring structure. Oil groove one is located on the inner side of the bushing body, oil groove two is located on the outer side of the lower end of the bushing body, and oil passage is located on the side of the bushing connecting plate.

[0007] Furthermore, the bushing connecting plate is provided with two blind holes and two connecting holes, and the bushing front pressure cover is connected to the bushing connecting plate through the blind holes.

[0008] Furthermore, the outer pressure cover of the bushing is provided with a second connection hole corresponding to the first connection hole. A screw is installed at the first and second connection holes. One end of the screw is installed inside the flip plate shaft housing. Multiple nuts are installed on the screw, and the nuts are located at the bushing and the outer pressure cover of the bushing.

[0009] Furthermore, the inner wall of the connecting blind hole is threaded.

[0010] Furthermore, a second packing groove is provided in the middle of the outer pressure cover of the bushing, and a second packing is provided in the second packing groove.

[0011] Furthermore, packing is provided between the bottom of the bushing body and the flip plate shaft housing.

[0012] Beneficial effects

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] This utility model is equipped with a front pressure cover for the bushing, a bushing, and an outer pressure cover for the bushing. The bushing is provided with an oil groove one and an oil groove two, which are filled with grease. The grease plays a primary sealing role, while the packing plays an auxiliary sealing role. During operation, gaps are allowed between the packing and the flap shaft. The grease can fill the gaps caused by wear or loosening of the packing at any time, preventing the leakage of raw coal gas. The grease can also reduce wear. The maintenance of this utility model is also very convenient. Only the grease needs to be added to restore the seal. Attached Figure Description

[0015] Figure 1 This is a top view of an embodiment of the present invention.

[0016] Figure 2 This is a cross-sectional view of an embodiment of the present invention.

[0017] Figure 3 This is a cross-sectional view from another perspective of one embodiment of the present invention.

[0018] Figure 4 This is a bottom view of the front pressure cover of the bushing according to an embodiment of the present invention.

[0019] Figure 5 for Figure 4 Mid-section view.

[0020] Figure 6 This is a top view of a bushing according to an embodiment of the present invention.

[0021] Figure 7 for Figure 6 Mid-section view.

[0022] Figure 8 for Figure 6 Another sectional view from the center.

[0023] Figure 9 This is a bottom view of the outer pressure cover of the bushing according to an embodiment of the present invention.

[0024] Figure 10 for Figure 9 Mid-section view.

[0025] Figure 11 This is a schematic diagram of existing technology. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] As shown in the figure, this utility model discloses a smoke prevention device for a coke oven bridge tube flap shaft, including a front cover 1, a sleeve 2, and an outer cover 3. The outer cover 3 is installed on the flap shaft housing 4. One end of the sleeve 2 passes through the outer cover 3 and is located at the flap shaft housing 4. The front cover 1 is installed at the front end of the sleeve 2. The flap shaft 5 passes through the front cover 1, sleeve 2, and outer cover 3. The upper end of the sleeve 2 is provided with an oil passage 21. The sleeve 2 is provided with an oil groove 1 22 relative to the flap shaft 5, and an oil groove 23 relative to the flap shaft housing 4. The oil groove 1 22 communicates with the oil groove 23 and communicates with the oil passage 21. A grease nipple is installed at the oil passage 21. The oil groove 1 22 and the flap shaft 5 form an oil cavity, and the oil groove 23 and the flap shaft housing 4 form an oil cavity. The oil cavities are sealed using grease. The grease enters the oil passage 21 from the grease nipple and then enters the oil cavity. If the flap shaft starts to smoke after a long time, simply add grease to restore the seal.

[0028] In one embodiment of this utility model, the front cover 1 of the bushing has a disc structure. A flap shaft passage hole 11 is provided in the middle of the front cover 1, and a packing mounting groove 12 is provided at the rear end of the flap shaft passage hole 11. The front cover 1 of the bushing has bolt mounting holes 13, and the front cover 1 of the bushing is connected to the bushing 2 by several bolts 6. A packing 9 is installed at the packing mounting groove 12. The packing 9 serves as an auxiliary seal.

[0029] In one embodiment of this utility model, the bushing 2 includes a bushing body 24 and a bushing connecting plate 25. The bushing body 25 is installed in the middle of the bushing connecting plate 24. The bushing body 25 has a circular ring structure. Oil groove one 22 is located on the inner side of the bushing body 25, oil groove two 23 is located on the outer side of the lower end of the bushing body 25, and oil passage 21 is located on the side of the bushing connecting plate 25. Lubricating grease is provided in oil groove one and oil groove two.

[0030] In one embodiment of this utility model, the bushing connecting plate 25 is provided with two blind holes 26 and two connecting holes 27. The bushing front cover 1 is connected to the bushing connecting plate 25 through the blind holes 26, specifically by bolts 6, which serve to fix the bushing front cover 1.

[0031] In one embodiment of this utility model, the outer pressure cover 3 of the bushing is provided with a second connection hole 31 corresponding to the first connection hole 27. A screw 7 is installed at the first connection hole 27 and the second connection hole 31. One end of the screw 7 is installed inside the flap shaft housing 4. Multiple nuts 8 are installed on the screw 7, and the nuts 8 are located at the bushing and the outer pressure cover of the bushing. First, the screw is passed through the first connection hole 27 and the second connection hole 31, and then the nuts are used to lock them. The nuts lock the bushing 2 and the outer pressure cover 3 of the bushing.

[0032] In one embodiment of this utility model, the inner wall of the connecting blind hole 26 is provided with threads.

[0033] In one embodiment of this utility model, a packing second mounting groove 32 is provided in the middle of the bushing outer pressure cover 3, and a packing second 10 is provided in the packing second mounting groove 32. The packing second 10 plays an auxiliary sealing role.

[0034] In one embodiment of this utility model, a packing root 14 is provided between the bottom of the bushing body 24 and the flap shaft housing 4. The packing root 14 serves as an auxiliary seal.

[0035] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. The anti-smoke device for the flap shaft of the coke oven bridge tube is characterized by: It includes a front pressure cover of the sleeve, a sleeve and an outer pressure cover of the sleeve, the outer pressure cover of the sleeve is installed on the flap shaft housing, one end of the sleeve passes through the outer pressure cover of the sleeve and is located at the flap shaft housing, the front pressure cover of the sleeve is installed at the front end of the sleeve, the flap shaft passes through the front pressure cover of the sleeve, the sleeve and the outer pressure cover of the sleeve, an oil channel is provided at the upper end of the sleeve, an oil groove 1 is provided at the sleeve relative to the flap shaft, an oil groove 2 is provided at the sleeve relative to the flap shaft housing, the oil groove 1 is connected with the oil groove 2, the oil groove 1 is connected with the oil channel, and a grease nipple is installed at the oil channel.

2. The anti-smoke device for the flap shaft of the coke oven bridge tube according to claim 1 is characterized in that: The front gland of the sleeve is a disc structure, a flap shaft through hole is arranged in the middle of the front gland, a packing installation groove is arranged at the rear end of the flap shaft through hole, a bolt installation hole is arranged on the front gland of the sleeve, and the front gland of the sleeve is connected to the sleeve by a plurality of bolts.

3. The anti-smoke device for the flap shaft of the coke oven bridge tube according to claim 1 is characterized in that: The sleeve includes a sleeve body and a sleeve connecting plate. The sleeve body is installed in the middle of the sleeve connecting plate. The sleeve body is a circular ring structure. The oil groove 1 is located on the inner side of the sleeve body, the oil groove 2 is located on the outer side of the lower end of the sleeve body, and the oil channel is located on the side of the sleeve connecting plate.

4. The anti-smoke device for the flap shaft of the coke oven bridge tube according to claim 3 is characterized in that: The shaft sleeve connecting plate is provided with two connecting blind holes and two connecting holes, and the shaft sleeve front pressure cover is connected with the shaft sleeve connecting plate through the connecting blind holes.

5. The anti-smoke device for the flap shaft of the coke oven bridge tube according to claim 4 is characterized in that: The outer pressure cover of the sleeve is provided with a connecting hole 2 corresponding to the connecting hole 1. Screws are installed at the connecting hole 1 and the connecting hole 2. One end of the screw is installed in the flap shaft housing. Multiple nuts are installed on the screw, and the nuts are located at the sleeve and the outer pressure cover of the sleeve.

6. The anti-smoke device for the flap shaft of the coke oven bridge tube according to claim 4 is characterized in that: The inner wall of the connecting blind hole is provided with threads.

7. The anti-smoke device for the flap shaft of the coke oven bridge tube according to claim 5 is characterized in that: A packing 2 installation groove is arranged in the middle of the outer gland of the shaft sleeve, and a packing 2 is arranged at the packing 2 installation groove.

8. The anti-smoke device for the flap shaft of a coke oven bridge tube according to claim 3 is characterized in that: A packing three is arranged between the bottom of the shaft sleeve body and the flap shaft housing.

9. The anti-smoke device for the flap shaft of a coke oven bridge tube according to claim 3, characterized in that: Grease is provided in oil groove 1 and oil groove 2.

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