CN220727307U - Shaft seal leakage-proof gas structure of blast furnace top valve body - Google Patents
Shaft seal leakage-proof gas structure of blast furnace top valve body Download PDFInfo
- Publication number
- CN220727307U CN220727307U CN202322476076.9U CN202322476076U CN220727307U CN 220727307 U CN220727307 U CN 220727307U CN 202322476076 U CN202322476076 U CN 202322476076U CN 220727307 U CN220727307 U CN 220727307U
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- China
- Prior art keywords
- oil
- shaft
- blast furnace
- sealing ring
- oil sealing
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 238000012856 packing Methods 0.000 claims abstract description 20
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 14
- 150000002148 esters Chemical class 0.000 claims abstract description 14
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 210000004907 gland Anatomy 0.000 claims description 5
- 239000003034 coal gas Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000428 dust Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model relates to the technical field of shaft seals, in particular to a shaft seal leakage-proof gas structure of a blast furnace top valve body. The oil seal ring is sleeved on the main shaft, packing is arranged on two sides of the oil seal ring, oil filling holes penetrating through the side walls of the oil seal ring are further formed in positions, corresponding to the oil seal ring, of the shaft sleeve, and one end, far away from the oil seal ring, of the oil filling holes is provided with an oil cup. The utility model has better sealing effect, and the oil filling hole and the oil cup are arranged on the shaft seal, so that lithium-based ester can be conveniently filled into the oil sealing ring and the shaft sleeve, thereby prolonging the time interval for replacing the packing and reducing the frequency for replacing the packing.
Description
Technical Field
The utility model relates to the technical field of shaft seals, in particular to a shaft seal leakage-proof gas structure of a blast furnace top valve body.
Background
The shaft end sealing structure of the sealing valve of the blast furnace top is shown in fig. 2 and 3, a main shaft 1 is rotatably connected with the blast furnace top (two ends of the main shaft 1 are connected with bearing seats arranged on the blast furnace top), shaft sleeves 2 are arranged on two sides of the main shaft 1, the shaft sleeves 2 are fixed on one side of the blast furnace top, two packing 4 used for sealing are arranged between the shaft sleeves 2 and the main shaft 1, and a gland 3 used for preventing the packing 4 from falling is arranged on the outer side of the shaft sleeves 2. The material cutting valve at the top of the blast furnace is similar to the shaft end sealing structure of the sealing valve. Because the inside of the blast furnace is in a positive pressure state, when the packing 4 ages for a long time, dust-containing gas can emerge along the shaft sleeve 2, and the production is delayed because the packing 4 needs to be replaced by stopping production, so that the shaft end sealing structures of the material cutting valve and the sealing valve at the top of the blast furnace need to be improved, the time interval for replacing the packing 4 is prolonged, and the frequency for replacing the packing 4 is reduced.
Disclosure of Invention
The utility model aims to solve the technical problem and provides a shaft seal leakage-proof gas structure of a blast furnace top valve body, aiming at the technical defects.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a shaft seal leak protection coal gas structure of blast furnace roof valve body, includes the main shaft of rotating with the blast furnace roof and being connected, the both sides of main shaft all are provided with the axle sleeve of fixing on the blast furnace roof, the outside detachable of axle sleeve is connected with the gland, be provided with the oil seal ring between axle sleeve and the main shaft, the oil seal ring cover is located on the main shaft, the both sides of oil seal ring all are provided with the packing, the position that corresponds with the oil seal ring on the axle sleeve still is provided with the oil filler point that runs through its lateral wall, the one end that the oil seal ring was kept away from to the oil filler point is provided with the oil cup.
Further optimize this technical scheme, all be provided with the recess on the inner and outer wall of oil seal ring, be provided with a plurality of through-holes that run through its inner and outer wall in the position that the recess was located on the oil seal ring, annotate lithium base ester and oil seal ring by lithium base ester parcel in recess and the through-hole.
Further optimizing the technical scheme, the cross section of the groove is circular arc.
Further optimize this technical scheme, the oil filler point is kept away from the one end of oil seal ring and is provided with internal thread portion, oil cup and internal thread portion threaded connection.
Compared with the prior art, the utility model has the following advantages: the oil seal ring is arranged inside the shaft sleeve, packing is arranged on two sides of the oil seal ring, good sealing effect is achieved, the oil filling hole and the oil cup are arranged on the shaft seal, lithium-based ester is conveniently filled into the oil seal ring and the shaft sleeve, therefore, the time interval for replacing the packing can be prolonged, and the frequency for replacing the packing is reduced.
Drawings
FIG. 1 is a schematic diagram of a shaft seal leakage-proof gas structure of a blast furnace top valve body of the present application.
Fig. 2 is a schematic view of a shaft end sealing structure of a furnace top valve body of a blast furnace in the prior art.
Fig. 3 is an enlarged view at a in fig. 2.
In the figure: 1. a main shaft; 2. a shaft sleeve; 3. a gland; 4. packing; 5. an oil seal ring; 6. an oil cup; 7. and an oil filling hole.
Detailed Description
The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
The specific embodiment is as follows: the shaft seal leakage-proof gas structure of the blast furnace top valve body comprises a main shaft 1 rotationally connected with the blast furnace top, shaft sleeves 2 fixed on the blast furnace top are arranged on two sides of the main shaft 1, the shaft sleeves 2 are detachably connected with the blast furnace top, a gland 3 is detachably connected to the outer side of each shaft sleeve 2, an oil sealing ring 5 is arranged between each shaft sleeve 2 and the main shaft 1, the oil sealing ring 5 is sleeved on the main shaft 1, and packing 4 is arranged on two sides of each oil sealing ring 5. When the existing equipment is modified, the length of the right packing 4 can be shortened, a new shaft sleeve 2 can be processed, and the length of the new shaft sleeve 2 is longer than that of the old shaft sleeve 2 so as to accommodate the oil sealing ring 5. The position of the shaft sleeve 2 corresponding to the oil seal ring 5 is also provided with an oil filling hole 7 penetrating through the side wall of the shaft sleeve, and one end of the oil filling hole 7, which is far away from the oil seal ring 5, is provided with an oil cup 6.
Specifically, the oil seal ring 5 is the metal material, all be provided with the recess on the inside and outside wall of oil seal ring 5, be provided with a plurality of through-holes that run through its inside and outside wall in the position that the recess was located on the oil seal ring 5, filled with lithium base ester and oil seal ring 5 by lithium base ester parcel in recess and the through-hole for be full of lithium base ester between oil seal ring 5 and axle sleeve 2 and main shaft 1. In order to obtain a good sealing effect, the outer diameter of the oil seal ring 5 is equal to or slightly smaller than the inner diameter of the shaft sleeve 2, and the inner diameter of the oil seal ring 5 is equal to or slightly larger than the diameter of the main shaft 1. The interior of the sleeve 2 may be filled with lithium-based ester, preferably lithium-based ester, via the oil cup 6. In addition, the lithium-based ester has certain adhesiveness, dust in the gas adheres to the lithium-based ester, so that the sealing effect is enhanced, and the dust-containing gas is not easy to leak out.
Preferably, the cross section of the groove is circular arc.
Specifically, an internal thread part is arranged at one end of the oil filling hole 7 far away from the oil sealing ring 5, and the oil cup 6 is in threaded connection with the internal thread part.
When the packing 4 is used, the oil seal ring 5 has a good sealing effect, and lithium-based ester can be conveniently filled into the oil seal ring 5 and the shaft sleeve 2 through the oil cup 6, so that the time interval for replacing the packing 4 can be prolonged, and the frequency for replacing the packing 4 can be reduced.
The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (4)
1. The utility model provides a shaft seal leak protection coal gas structure of blast furnace roof valve body, includes main shaft (1) of rotating with the blast furnace roof and being connected, the both sides of main shaft (1) all are provided with axle sleeve (2) of fixing on the blast furnace roof, the outside detachable of axle sleeve (2) is connected with gland (3), its characterized in that: an oil sealing ring (5) is arranged between the shaft sleeve (2) and the main shaft (1), the main shaft (1) is sleeved with the oil sealing ring (5), packing (4) are arranged on two sides of the oil sealing ring (5), an oil filling hole (7) penetrating through the side wall of the shaft sleeve (2) is further formed in the position, corresponding to the oil sealing ring (5), of the shaft sleeve (2), and an oil cup (6) is arranged at one end, far away from the oil sealing ring (5), of the oil filling hole (7).
2. The shaft seal leakage-proof gas structure of a blast furnace top valve body according to claim 1, wherein: grooves are formed in the inner wall and the outer wall of the oil sealing ring (5), a plurality of through holes penetrating the inner wall and the outer wall of the oil sealing ring are formed in the position, where the grooves are located, of the oil sealing ring (5), lithium-based ester is filled in the grooves and the through holes, and the oil sealing ring (5) is wrapped by the lithium-based ester.
3. The shaft seal leakage-proof gas structure of a blast furnace top valve body according to claim 2, wherein: the cross section of the groove is arc-shaped.
4. The shaft seal leakage-proof gas structure of a blast furnace top valve body according to claim 1, wherein: one end of the oil filling hole (7) far away from the oil sealing ring (5) is provided with an internal thread part, and the oil cup (6) is in threaded connection with the internal thread part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322476076.9U CN220727307U (en) | 2023-09-12 | 2023-09-12 | Shaft seal leakage-proof gas structure of blast furnace top valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322476076.9U CN220727307U (en) | 2023-09-12 | 2023-09-12 | Shaft seal leakage-proof gas structure of blast furnace top valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220727307U true CN220727307U (en) | 2024-04-05 |
Family
ID=90498720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322476076.9U Active CN220727307U (en) | 2023-09-12 | 2023-09-12 | Shaft seal leakage-proof gas structure of blast furnace top valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220727307U (en) |
-
2023
- 2023-09-12 CN CN202322476076.9U patent/CN220727307U/en active Active
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