CN215887092U - Special tool for opening furnace top manhole of blast furnace - Google Patents
Special tool for opening furnace top manhole of blast furnace Download PDFInfo
- Publication number
- CN215887092U CN215887092U CN202122403057.4U CN202122403057U CN215887092U CN 215887092 U CN215887092 U CN 215887092U CN 202122403057 U CN202122403057 U CN 202122403057U CN 215887092 U CN215887092 U CN 215887092U
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- China
- Prior art keywords
- manhole
- blast furnace
- opening
- special tool
- furnace
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- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000006378 damage Effects 0.000 abstract description 3
- 238000005474 detonation Methods 0.000 abstract description 3
- 238000013016 damping Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Abstract
The utility model relates to a special tool for opening a manhole of a blast furnace top, which comprises a traction device arranged outside each manhole of the blast furnace top and a clamping device, wherein the clamping device comprises a U-shaped clamping plate, a clamping bolt and a lifting rope, a threaded hole is formed in one side plate of the U-shaped clamping plate, the clamping bolt is matched and connected with the threaded hole, and the lifting rope is connected with the closed end of the U-shaped clamping plate. The manhole cover avoids the damage to operators caused by instantaneous detonation during manhole opening, and saves labor and operation time. The labor intensity is reduced, and the working efficiency is improved.
Description
Technical Field
The utility model relates to the field of smelting, in particular to a special tool for opening a manhole at the top of a blast furnace.
Background
When the blast furnace is used for treating furnace top equipment in long-term damping down and damping down, the furnace top ignition operation needs to be carried out, and when the furnace top ignition operation is carried out, the furnace top manhole cover plate needs to be opened firstly, and then the ignition operation is carried out. Because the manhole cover plate at the top of the furnace is opened, the fixing pin on the manhole cover plate is usually loosened by using a sledgehammer by an operator, then the rope is tied on the cover plate of the manhole, and the cover plate is opened by manually pulling the rope by the operator. At the moment of opening the last fixed pin on the cover plate and pulling the cover plate open, air enters into the furnace and is mixed with blast furnace gas in the furnace, so that detonation is easy to occur, and personal injury accidents are caused.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a special tool for opening a manhole at the top of a blast furnace, solving the hidden danger that operators are easy to generate gas knocking to hurt people when operating the manhole at the top of the blast furnace, and ensuring the personal safety.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a specialized tool for opening blast furnace roof manhole, is including setting up the draw gear in each manhole outside at the blast furnace roof, still includes the clamping device, and the clamping device includes U-shaped splint, clamping bolt, lifting rope, is equipped with the screw hole on a curb plate of U-shaped splint, and clamping bolt is connected with the screw hole cooperation, and lifting rope is connected with the blind end of U-shaped splint.
The traction device comprises a manual winch, a steel rope and a fixed pulley.
The included angle A between the traction direction of the traction device and the center line of the manhole is 40-50 degrees.
Compared with the prior art, the utility model has the beneficial effects that:
the manhole cover avoids the damage to operators caused by instantaneous detonation during manhole opening, and saves labor and operation time. The labor intensity is reduced, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of the top of a blast furnace.
FIG. 3 is a view showing the construction of the chuck.
In the figure: the device comprises a manhole 1, a manual winch 2, a steel rope 3, a fixed pulley 4, a U-shaped clamping plate 5, a clamping bolt 6 and a lifting rope 7.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
referring to fig. 1-3, the special tool for opening the manhole of the furnace top of the blast furnace comprises a traction device arranged outside each manhole 1 on the furnace top of the blast furnace, wherein the traction device comprises a manual winch 2, a steel rope 3 and a fixed pulley 4. The manual winch 1 is fixed on a platform at the top layer of the blast furnace, the fixed pulley 3 is fixed on a furnace top frame above a manhole, the steel rope 2 is connected to a handle of the manhole 1 by bypassing the fixed pulley, and an included angle A between the traction direction of the traction device and the center line of the manhole is 40-50 degrees.
The special tool further comprises a clamping device, the clamping device comprises a U-shaped clamping plate 5, a clamping bolt 6 and a lifting rope 7, a threaded hole is formed in one side plate of the U-shaped clamping plate 5, the clamping bolt 6 is connected with the threaded hole in a matched mode, and the lifting rope 7 is connected with the closed end of the U-shaped clamping plate 5.
Before a manhole of the furnace top is drilled, the manhole cover and the steel armor connecting plate are clamped by a clamping device from the outer side of the manhole, and the clamping bolt is adjusted to be not dropped off by the clamping device and can slide along the manhole cover. The own retaining pin on the manhole is then opened. At this moment, the clamping device ensures that the manhole is not opened. Personnel are far away from the blasting area, and pull and lift 3 stay cords to break away from the clamping device from the manhole.
And (5) shaking the manual winch to slowly open the manhole cover plate to finish the operation.
In the above embodiments, it is obvious to those skilled in the art that the present invention can be modified and modified without departing from the principle of the present invention, and the modified and modified embodiments also fall within the protection scope of the appended claims. The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and their concepts should be equivalent or changed within the technical scope of the present invention.
Claims (3)
1. The utility model provides a specialized tool for opening blast furnace roof manhole, is including setting up the draw gear in each manhole outside at the blast furnace roof, its characterized in that still includes the clamping device, and the clamping device includes U-shaped splint, clamping bolt, lifting rope, is equipped with the screw hole on the curb plate of U-shaped splint, and clamping bolt is connected with the screw hole cooperation, and lifting rope is connected with the blind end of U-shaped splint.
2. The special tool for opening the manhole of the furnace top of the blast furnace as claimed in claim 1, wherein the traction device comprises a manual winch, a steel rope and a fixed pulley.
3. The special tool for opening the furnace top manhole of the blast furnace as claimed in claim 1, wherein the angle A between the drawing direction of the drawing device and the center line of the manhole is 40-50 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122403057.4U CN215887092U (en) | 2021-09-30 | 2021-09-30 | Special tool for opening furnace top manhole of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122403057.4U CN215887092U (en) | 2021-09-30 | 2021-09-30 | Special tool for opening furnace top manhole of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215887092U true CN215887092U (en) | 2022-02-22 |
Family
ID=80348141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122403057.4U Active CN215887092U (en) | 2021-09-30 | 2021-09-30 | Special tool for opening furnace top manhole of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215887092U (en) |
-
2021
- 2021-09-30 CN CN202122403057.4U patent/CN215887092U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240402 Address after: Room 209, No. 56 Beifu Road, Beitai Town, Pingshan District, Benxi City, Liaoning Province, 117000 Patentee after: Benxi North Iron Industry Co.,Ltd. Country or region after: China Patentee after: BENXI BEIYING IRON & STEEL (GROUP) CO.,LTD. Address before: 117000 Beitai Town, Pingshan District, Benxi City, Liaoning Province Patentee before: BENXI BEIYING IRON & STEEL (GROUP) CO.,LTD. Country or region before: China |