CN219032231U - Plug structure for coal gun - Google Patents
Plug structure for coal gun Download PDFInfo
- Publication number
- CN219032231U CN219032231U CN202320065662.1U CN202320065662U CN219032231U CN 219032231 U CN219032231 U CN 219032231U CN 202320065662 U CN202320065662 U CN 202320065662U CN 219032231 U CN219032231 U CN 219032231U
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- China
- Prior art keywords
- coal
- gun
- check valve
- clip
- coal injection
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- 239000003245 coal Substances 0.000 title claims abstract description 155
- 238000002347 injection Methods 0.000 claims abstract description 107
- 239000007924 injection Substances 0.000 claims abstract description 107
- 238000005452 bending Methods 0.000 claims abstract description 10
- 239000004579 marble Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to the technical field of blast furnace ironmaking, and discloses a plug structure for a coal gun, which comprises the following components: the convex column is arranged on the coal gun clip; the clamping groove of the bending structure is arranged at the rear end of the check valve; the clamping groove is clamped with the convex column, so that the coal gun clamp is connected to the rear end of the check valve; wherein, the coal injection gun sequentially passes through the coal injection gun clip and the passage of the check valve. The clamping groove with the bending structure is arranged at the rear end of the check valve, and the convex column is arranged on the coal gun clip, so that the coal gun clip can be conveniently installed at the rear end of the check valve; the coal gun clip and the coal injection gun can be respectively installed without inserting the coal injection gun after the coal gun clip and the coal injection gun are installed together.
Description
Technical Field
The application relates to the technical field of blast furnace ironmaking, for example, to a plug structure for a coal gun.
Background
The coal injection of the blast furnace is an effective means for reducing the coke ratio and improving the production efficiency of the blast furnace. The coal injection gun is an important component of a blast furnace coal injection system, and the working condition of the coal injection gun directly influences the coal injection effect and the blast furnace production.
However, in the actual use process, the front end of the check valve is fixed on the air pipe, and a marble is arranged in the branch at the rear end of the check valve to fix the coal gun clip and the coal injection gun together by bolts. When the coal injection gun is inserted, the coal injection gun with the fixed coal injection gun clip is directly inserted into the check valve, the marble in the check valve is jacked up, the coal injection gun is inserted to a set position by using force, the coal injection gun clip is tightly combined with a clamping groove at the rear end of the check valve, and the coal injection gun clip is fixed to complete the gun inserting action, at the moment, under the condition of normal coal injection, the marble is acted in the branch pipe by the coal injection gun; when the coal injection gun is pulled out, the coal injection gun clip and the coal injection gun are pulled out together to complete the gun pulling action. At this time, the marble is impacted by the air current, slides down along the track to block the check valve, and plays a role in isolating the outside from the inside of the blast furnace.
However, in the process of the operation, when the gun inserting action is carried out, a coal gun clip and a coal injection gun must be inserted into the check valve timely and quickly, if the insertion is not timely, a large amount of slag particles can be accumulated in the branch pipe, so that the marble is easy to clamp in the branch pipe, and the coal injection gun and the marble are mutually clamped; when the gun pulling action is carried out, the gap between the coal gun clamp and the check valve is too large, so that a large amount of slag particles can be gathered in the branch pipes, the coal injection gun is still easy to clamp, the gap between the coal gun clamp and the check valve is easy to leak the slag particles, and the slag particles are sprayed out to scald personnel.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a plug structure for a coal gun, comprising:
the convex column is arranged on the coal gun clip;
the clamping groove of the bending structure is arranged at the rear end of the check valve;
the clamping groove is clamped with the convex column, so that the coal gun clamp is connected to the rear end of the check valve; wherein, the coal injection gun sequentially passes through the coal injection gun clip and the passage of the check valve.
Further, a locking hole is formed in the side wall of the coal gun clamp, and a locking piece is inserted to limit movement of the coal injection gun.
Further, the opening of the clamping groove is of a flaring structure, so that the convex column enters the clamping groove.
Further, the inner surface of the clamping groove is provided with textures.
Further, the rear end of the check valve is provided with two clamping grooves, and the coal gun clamp is provided with two convex columns.
Further, a direct injection channel and a branch channel are arranged in the check valve; further comprises:
a ball disposed in the passage of the check valve, and switching movement between the direct injection passage and the branch passage;
wherein, under the condition that the coal injection gun is inserted into the direct injection channel of the check valve, the marble is forced to move into the branch channel; when the coal injection gun is pulled out of the direct injection passage of the check valve, the marble flows into the direct injection passage from the branch passage to block the direct injection passage.
Further, the rear end of the coal injection gun clip which is not inserted into the coal injection gun is provided with a valve for controlling coal injection.
The plug structure for the coal gun provided by the embodiment of the disclosure can realize the following technical effects:
the clamping groove with the bending structure is arranged at the rear end of the check valve, and the convex column is arranged on the coal gun clip, so that the coal gun clip can be conveniently installed at the rear end of the check valve; the coal gun clip and the coal injection gun can be respectively installed without inserting the coal injection gun after the coal gun clip and the coal injection gun are installed together; in addition, after the coal gun clip is installed, the outside and the inside of the blast furnace can be isolated, and only after the coal injection gun is installed, coal can be smoothly injected into the inside of the blast furnace; in the process of inserting or pulling out the gun, the gap between the coal gun clamp and the coal injection gun is smaller, the coal injection gun is not clamped in the check valve, meanwhile, the blown-out furnace gas is very little, the safety can be ensured, and the gun inserting or pulling-out action can be completed rapidly.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
FIG. 1 is a schematic illustration of a plug structure for a coal gun according to an embodiment of the present disclosure;
FIG. 2 is a second schematic structural view of a plug structure for a coal gun according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a plug structure for a coal gun according to an embodiment of the present disclosure.
Reference numerals:
10. a coal gun clip; 11. a convex column; 12. a locking hole;
20. a non-return valve; 21. a clamping groove; 22. a direct injection passage; 23. a branch channel; 24. and (3) a marble.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
As shown in connection with fig. 1 to 3, an embodiment of the present disclosure provides a plug structure for a coal gun, including: the convex column 11 is arranged on the coal gun clip 10; a clamping groove 21 with a bending structure is arranged at the rear end of the check valve 20; the coal gun clip 10 is connected to the rear end of the check valve 20 through the clamping groove 21 and the convex column 11; wherein the coal injection gun sequentially passes through the passages of the coal gun clip 10 and the check valve 20.
By adopting the plugging structure for the coal gun provided by the embodiment of the disclosure, the convex column 11 is arranged on the coal gun clip 10 through the clamping groove 21 with the bending structure arranged at the rear end of the check valve 20, so that the coal gun clip 10 is convenient to install at the rear end of the check valve 20; the coal gun clip 10 and the coal injection gun can be respectively installed without inserting the coal injection gun after the coal gun clip 10 and the coal injection gun are installed together; in addition, after the coal gun clip 10 is installed, the outside and the inside of the blast furnace can be isolated, and only after the coal injection gun is installed, coal can be smoothly injected into the inside of the blast furnace; in the process of inserting or pulling out the gun, the gap between the coal gun clip 10 and the coal injection gun is smaller, the coal injection gun is not clamped in the check valve 20, meanwhile, the blown furnace gas is very little, the safety can be ensured, and the gun inserting or pulling action can be rapidly completed.
In the present embodiment, the boss 11 is disposed on the coal gun clip 10, and the coal gun clip 10 is connected to the rear end of the check valve 20 by the engagement of the clamping groove 21 with the boss 11. Wherein, the convex column 11 is arranged on the outer side wall of the coal gun clip 10, the rear end of the check valve 20 is of a tube body structure, the clamping groove 21 is arranged on the side wall of the tube body, and one end of the clamping groove is provided with an open inlet, so that the convex column 11 can enter the clamping groove 21.
In order to facilitate the fixing of the coal injection gun, as shown in fig. 2, in the embodiment of the present application, a locking hole 12 is formed on the side wall of the coal injection gun clip 10, and a locking member is inserted to limit the movement of the coal injection gun.
In the embodiment, a locking hole 12 is formed in the side wall of the coal gun clip 10, and a locking piece is inserted into the locking hole 12, so that the end part of the locking piece is abutted against the circumferential side surface of the coal injection gun to limit the movement of the coal injection gun; further, in order to further limit the coal injection gun, a groove body is arranged on the circumferential side wall of the coal injection gun, and the end part of the locking piece is abutted with the circumferential groove body of the coal injection gun.
In this embodiment, the first locking member may be a bolt, a screw, or a pin.
In the embodiment of the present application, the opening of the clamping groove 21 is a flaring structure, so that the convex pillar 11 enters the clamping groove 21.
In this embodiment, the open end of the clamping groove 21 is provided with an outer chamfer, and the area of the outer side of the open end is larger than the area of the inner side of the open end, so that a flaring structure is formed, and when the clamping groove is matched with the convex column 11, the convex column 11 can smoothly enter the clamping groove 21 through the flaring.
In the embodiment of the present application, the groove inner surface of the card groove 21 is provided with a texture.
In this embodiment, the inner surface of the slot 21 is provided with a texture, which can play a role of anti-slip to prevent the protrusion 11 from being separated from the slot 21.
In the embodiment of the application, two clamping grooves 21 are formed in the rear end of the check valve 20, and two protruding columns 11 are arranged on the coal gun clip 10.
In this embodiment, the shape structure and number of the protruding columns 11 are not particularly limited, and for the stability of connection, the positions and number of the clamping grooves 21 are the same as those of the protruding columns 11, alternatively, the protruding columns 11 are provided with one, cylindrical structure, the cylindrical structure is convenient to be connected with the clamping grooves 21, the number of the clamping grooves 21 is provided with one, and the bending clamping grooves with L-shaped structure are used for installing the protruding columns 11 of the coal gun clip 10 in alignment with the positions of the clamping groove inlets of the check valves 20 when the coal gun clip 10 is connected with the check valves 20, and the coal gun clip 10 is screwed to enable the protruding columns 11 to be installed on the bending parts of the clamping grooves 21.
Optionally, two protruding columns 11 are provided, the two protruding columns 11 are symmetrically arranged, the two protruding columns are of a cylindrical structure, two clamping grooves 21 are also provided, the positions of the clamping grooves correspond to the two protruding columns, and bending sections of the two clamping grooves 21 face the same horizontal direction.
In the embodiment of the present application, as shown in fig. 1, a direct injection passage 22 and a branch passage 23 are provided in the check valve 20; further comprises:
a ball 24 provided in the passage of the check valve 20 and switching movement between the direct injection passage 22 and the branch passage 23;
wherein, in the case that the coal injection gun is inserted into the direct injection passage 22 of the check valve 20, the marble 24 is forced to move into the branch passage 23; in the case where the coal injection gun is pulled out from the direct injection passage 22 of the check valve 20, the marble 24 flows into the direct injection passage 22 from the branch passage 23 to block the direct injection passage 22.
In the embodiment of the present application, the rear end of the coal injection gun, which is not inserted into the coal injection gun clip 10, is provided with a valve for controlling the injection of coal, so that the flow rate of the injection of coal in the coal injection gun can be controlled and the passage of the coal injection gun can be opened or closed.
The following is a specific working procedure of the plugging structure for the coal gun in the present application.
In the process of inserting the coal gun, the coal gun clip 10 is fixed at the rear end of the check valve 20 through the convex column 11 and the clamping groove 21, and the valve at the rear end of the coal injection gun is closed; the coal injection gun is inserted from the coal injection gun clip 10, under the condition that the ball 24 is propped open by the coal injection gun, the ball 24 moves into the branch channel 23 under force, the gap between the coal injection gun clip 10 and the coal injection gun is small, blown furnace gas is very little, the coal injection gun is very safe, then the coal injection gun is inserted into the position, the coal injection gun and the coal injection gun clip 10 are fixed through the locking piece, the coal injection branch pipe is connected to the outside of the coal injection gun, the valve is opened, and the gun insertion is completed.
In the process of pulling out the gun, the valve is closed, the coal injection gun is disconnected from the coal injection branch pipe, and the locking piece is loosened to pull out the coal injection gun. At this time, the coal gun clip 10 remains at the rear end of the check valve 20, and the coal injection gun is slowly taken out; because the gap between the coal injection gun and the coal gun clip 10 is smaller, the gas leakage in the furnace is less, and the construction is very safe; after the coal injection gun is pulled out, the marble 24 flows into the direct injection channel 22 from the branch channel 23, so that the separation between the inside and the outside of the furnace is realized, and the gun pulling is completed.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof.
Claims (7)
1. A plug structure for a coal gun, comprising:
the convex column (11) is arranged on the coal gun clip (10);
a clamping groove (21) with a bending structure is arranged at the rear end of the check valve (20);
the clamping groove (21) is clamped with the convex column (11), so that the coal gun clamp (10) is connected to the rear end of the check valve (20); wherein, the coal injection gun sequentially passes through the passages of the coal injection gun clip (10) and the check valve (20).
2. The plugging structure for a coal gun according to claim 1, wherein a locking hole (12) is formed in a side wall of the coal gun clip (10), and a locking member is inserted to limit movement of the coal injection gun.
3. The plugging structure for a coal gun according to claim 1, wherein the opening of the clamping groove (21) is a flaring structure so that the convex column (11) enters the clamping groove (21).
4. The plugging structure for a coal gun according to claim 2, wherein the groove inner surface of the clamping groove (21) is provided with a texture.
5. The plugging structure for a coal gun according to any one of claims 1 to 4, wherein two clamping grooves (21) are formed in the rear end of the check valve (20), and two protruding columns (11) are formed in the coal gun clip (10).
6. The plug structure for a coal gun according to claim 5, wherein a direct injection channel (22) and a branch channel (23) are arranged in the check valve (20); further comprises:
a ball (24) provided in the passage of the check valve (20) and switching movement between the direct injection passage (22) and the branch passage (23);
wherein, in the case that the coal injection gun is inserted into the direct injection passage (22) of the check valve (20), the marble (24) is forced to move into the branch passage (23); when the coal injection gun is pulled out of the direct injection passage (22) of the check valve (20), the marble (24) flows into the direct injection passage (22) from the branch passage (23) to block the direct injection passage (22).
7. The plugging structure for a coal gun according to claim 5, wherein a rear end of the coal gun clip (10) of the coal injection gun, which is not inserted, is provided with a valve for controlling coal injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320065662.1U CN219032231U (en) | 2023-01-09 | 2023-01-09 | Plug structure for coal gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320065662.1U CN219032231U (en) | 2023-01-09 | 2023-01-09 | Plug structure for coal gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219032231U true CN219032231U (en) | 2023-05-16 |
Family
ID=86278720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320065662.1U Active CN219032231U (en) | 2023-01-09 | 2023-01-09 | Plug structure for coal gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219032231U (en) |
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2023
- 2023-01-09 CN CN202320065662.1U patent/CN219032231U/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: 20231008 Address after: 617000 Xiangyang Village, East District, Sichuan, Panzhihua Patentee after: PANGANG GROUP PANZHIHUA STEEL & VANADIUM Co.,Ltd. Patentee after: XICHANG STEEL VANADIUM CO.,LTD., PANGANG Group Address before: 617000 Xiangyang Village, East District, Sichuan, Panzhihua Patentee before: PANGANG GROUP PANZHIHUA STEEL & VANADIUM Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231122 Address after: 617000 Xiangyang Village, East District, Sichuan, Panzhihua Patentee after: PANGANG GROUP PANZHIHUA STEEL & VANADIUM Co.,Ltd. Patentee after: XICHANG STEEL VANADIUM CO.,LTD., PANGANG Group Patentee after: PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE Co.,Ltd. Address before: 617000 Xiangyang Village, East District, Sichuan, Panzhihua Patentee before: PANGANG GROUP PANZHIHUA STEEL & VANADIUM Co.,Ltd. Patentee before: XICHANG STEEL VANADIUM CO.,LTD., PANGANG Group |