CN219297555U - Positioning pull rod of hydrogen-rich carbon circulating oxygen blast furnace plasma torch - Google Patents
Positioning pull rod of hydrogen-rich carbon circulating oxygen blast furnace plasma torch Download PDFInfo
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- CN219297555U CN219297555U CN202320642924.6U CN202320642924U CN219297555U CN 219297555 U CN219297555 U CN 219297555U CN 202320642924 U CN202320642924 U CN 202320642924U CN 219297555 U CN219297555 U CN 219297555U
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- hole seat
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Abstract
The utility model discloses a positioning pull rod of a hydrogen-rich carbon circulating oxygen blast furnace plasma torch, which comprises two rod bodies and an adjusting sleeve, wherein the two rod bodies are respectively provided with external threads, the outer side ends of the two rod bodies are respectively provided with a cylindrical pin hole seat and a U-shaped pin hole seat, the inner side ends of the two rod bodies are respectively connected with the adjusting sleeve through threads, and the rod bodies at the two ends of the adjusting sleeve are respectively provided with a pre-tightening nut; the diameter of the rod body is 30mm, the length of the external thread is 2/3 of the length of the rod body, one rod body is right-handed thread, the other rod body is left-handed thread, the diameter of the rod body connected with the U-shaped pin hole seat is 1/2 of the width of the U-shaped pin hole seat, and the U-shaped pin hole seat is connected with a positioning piece welded on the upper part of a furnace wall through a cylindrical pin.
Description
Technical Field
The utility model relates to a positioning pull rod of a hydrogen-rich carbon circulating oxygen blast furnace plasma torch.
Background
The eight-steel hydrogen-rich carbon circulating oxygen blast furnace is a global industrial grade total oxygen-rich hydrogen-rich carbon circulating blast furnace. The main process of the hydrogen-rich carbon circulating oxygen blast furnace is that decarburization and heating are carried out through furnace top circulating gas, the decarburization and heating are carried out, and the hydrogen-rich carbon circulating oxygen blast furnace is sprayed into the furnace from a tuyere and adopts a plasma torch mode to heat the gas, and when the plasma torch is installed, the spherical crown surface of a torch head of the plasma torch is required to be closely matched with the spherical crown sealing processing surface in the front end of a tuyere small sleeve, so that the effect of no leakage of the gas is achieved. Because the plasma torch body is approximately 1 ton in weight, when the plasma torch body is installed, the installation deviation of the angle and the position of the spherical crown surface of the torch head and the spherical crown end surface in the front end of the tuyere small sleeve is caused, the gas leakage is easy to occur, the gas poisoning of personnel is caused, and potential safety hazards exist, so that the hanging bearing and centering of the plasma torch body and the tuyere small sleeve become the neck clamping technical link of the installation of the plasma torch body and the tuyere small sleeve.
Disclosure of Invention
The utility model aims to provide a positioning pull rod of a hydrogen-rich carbon circulating oxygen blast furnace plasma torch, which can suspend and position a heavy plasma torch of approximately 1 ton, accurately position the coaxiality of a plasma torch body and a tuyere small sleeve, and has high mechanical strength and long service life.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a positioning pull rod of rich hydrogen carbon circulation oxygen blast furnace plasma torch, includes the body of rod and adjusting sleeve, the body of rod be two and be provided with the external screw thread respectively, two body of rod outside ends are provided with cylinder pinhole seat and U-shaped pinhole seat respectively, two body of rod inboard ends link together through the screw thread respectively with an adjusting sleeve, are provided with pretension nut respectively on the body of rod at adjusting sleeve both ends; the diameter of the rod body is 30mm, the length of the external thread is 2/3 of the length of the rod body, one rod body is right-handed thread, the other rod body is left-handed thread, the diameter of the rod body connected with the U-shaped pin hole seat is 1/2 of the width of the U-shaped pin hole seat, and the U-shaped pin hole seat is connected with a positioning piece welded on the upper part of a furnace wall through a cylindrical pin.
The beneficial effects of the utility model are as follows: according to the positioning pull rod, the rod body is divided into two parts, and the length of the positioning pull rod is adjusted by rotating the adjusting sleeve, so that the positioning pull rod has adjustability, and the coaxiality of the plasma torch body and the tuyere small sleeve can be accurately positioned due to the adjustability. The positioning pull rod is simple in structure and convenient to process, and because the pull rod is made of 20# steel, the mechanical strength of the plasma torch of the hydrogen-rich carbon circulating oxygen blast furnace is high, the plasma torch is not easy to break, the service life of the positioning pull rod is greatly prolonged, and the positioning pull rod has popularization value.
Drawings
FIG. 1 is a schematic diagram of the front view of the present utility model;
fig. 2 is a mounting position diagram of the present utility model.
The symbols of the components in the drawings are as follows: 1. a rod body; 2. a cylindrical pin hole seat; 3. a rod body; 4. a U-shaped pin hole seat; 5. a positioning piece; 6. an adjustment sleeve; 7. 8, pre-tightening a nut; 9. a plasma torch body; 10. a tuyere small sleeve; 11. 12, 13 positioning tie rods.
Description of the embodiments
The positioning pull rod of the hydrogen-rich carbon circulating oxygen blast furnace plasma torch comprises two rod bodies 1 and 3 and an adjusting sleeve 6, wherein the two rod bodies 1 and 3 are respectively provided with external threads, the outer side ends of the two rod bodies 1 and 3 are respectively provided with a cylindrical pin hole seat 2 and a U-shaped pin hole seat 4, the inner side ends of the two rod bodies are respectively connected with the adjusting sleeve 6 through threads, and the rod bodies at the two ends of the adjusting sleeve 6 are respectively provided with pretension nuts 7 and 8; the diameters of the rod bodies 1 and 3 are 30mm, the length of the external thread is 2/3 of the length of the rod bodies 1 and 3, one rod body 1 is a right-handed thread, the other rod body 3 is a left-handed thread, the diameter of the rod body 3 connected with the U-shaped pin hole seat 4 is 1/2 of the width of the U-shaped pin hole seat 4, and the U-shaped pin hole seat 4 is connected with a positioning piece 5 welded on the upper part of a furnace wall through a cylindrical pin.
One end of the rod body 1 is provided with external threads, the other end of the rod body 1 is connected with a cylindrical pin hole seat 2, and the cylindrical pin hole seat 2 and the rod body 1 are integrally processed and cast. The utility model discloses a furnace wall, including body of rod 3, the setting element is fixed on the furnace wall upper portion, body of rod 3 one end is equipped with the external screw thread, and body of rod 3 other end is connected with U type pinhole seat 4,U type pinhole seat 4 and body of rod 3 adopts internal and external threaded connection, and cylinder pinhole is established to U type pinhole seat 4 to pass through the cylindric lock with the setting element 5 of welding in furnace wall upper portion to keep certain rotation space, make the pull rod rotatable when receiving the stress fastening.
The rod body 1 and the rod body 3 are connected through the adjusting sleeve 6, before the connecting adjusting sleeve 6 is screwed in, firstly, the pre-tightening nut 7 with internal threads is screwed in the rod body 1, the pre-tightening nut 8 with internal threads is screwed in the rod body 3, through holes with internal threads are formed in the two ends of the adjusting sleeve 6, then the external threads of the rod body 1 and the rod body 3 are screwed in the two ends of the adjusting sleeve 6, and the threads of the rod body 1 and the rod body 3 are screwed in the adjusting sleeve 6 through rotating the adjusting sleeve 6, so that the length of the positioning pull rod is adjusted.
All parts of the positioning pull rod are made of 20# steel.
When the utility model is used, the positioning pull rod is divided into three positioning pull rods 11, 12 and 13, and the screw threads of the rod body 1 and the rod body 3 are screwed into the adjusting sleeve 6 by adjusting the rotating adjusting sleeve 6 of the positioning pull rod 11, so that the length of the positioning pull rod is adjusted, and the vertical coaxiality of the plasma torch body 9 and the tuyere small sleeve 10 is accurately positioned. The screw threads of the rod body 1 and the rod body 3 are screwed into the adjusting sleeve 6 by adjusting the rotating adjusting sleeve 6 of the positioning pull rods 12 and 13 (left and right parts), so that the length of the positioning pull rods is adjusted, and further, the left and right coaxiality of the plasma torch body 9 and the tuyere small sleeve 10 is accurately positioned. After the positioning is finished, the pre-tightening nuts 7 and 8 are screwed, so that the positioning pull rod has a stable and proper length in the production process, and the tightness of the plasma torch body 1 and the tuyere small sleeve 2 is supported.
Claims (1)
1. The utility model provides a positioning pull rod of rich hydrogen carbon circulation oxygen blast furnace plasma torch, includes body of rod and adjusting sleeve, characterized by: the two rod bodies are respectively provided with external threads, the outer side ends of the two rod bodies are respectively provided with a cylindrical pin hole seat and a U-shaped pin hole seat, the inner side ends of the two rod bodies are respectively connected with an adjusting sleeve through threads, and the rod bodies at the two ends of the adjusting sleeve are respectively provided with a pre-tightening nut; the diameter of the rod body is 30mm, the length of the external thread is 2/3 of the length of the rod body, one rod body is right-handed thread, the other rod body is left-handed thread, the diameter of the rod body connected with the U-shaped pin hole seat is 1/2 of the width of the U-shaped pin hole seat, and the U-shaped pin hole seat is connected with a positioning piece welded on the upper part of a furnace wall through a cylindrical pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320642924.6U CN219297555U (en) | 2023-03-29 | 2023-03-29 | Positioning pull rod of hydrogen-rich carbon circulating oxygen blast furnace plasma torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320642924.6U CN219297555U (en) | 2023-03-29 | 2023-03-29 | Positioning pull rod of hydrogen-rich carbon circulating oxygen blast furnace plasma torch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219297555U true CN219297555U (en) | 2023-07-04 |
Family
ID=86951367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320642924.6U Active CN219297555U (en) | 2023-03-29 | 2023-03-29 | Positioning pull rod of hydrogen-rich carbon circulating oxygen blast furnace plasma torch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219297555U (en) |
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2023
- 2023-03-29 CN CN202320642924.6U patent/CN219297555U/en active Active
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