CN215628053U - Blast furnace coal gun with anti-abrasion coating - Google Patents
Blast furnace coal gun with anti-abrasion coating Download PDFInfo
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- CN215628053U CN215628053U CN202120689867.8U CN202120689867U CN215628053U CN 215628053 U CN215628053 U CN 215628053U CN 202120689867 U CN202120689867 U CN 202120689867U CN 215628053 U CN215628053 U CN 215628053U
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Abstract
The utility model discloses a blast furnace coal gun with an anti-abrasion coating, which comprises a coal powder injection connecting pipe, wherein a coal injection main pipe is communicated with the outer wall of the coal powder injection connecting pipe, one end of the coal injection main pipe is communicated with a three-way joint, a coal injection branch pipe is communicated with the three-way joint, one end of the coal powder injection connecting pipe is provided with a coal injection gun seat, one side of the coal injection gun seat is communicated with a coal injection gun barrel, the outer wall of the coal injection gun barrel is provided with a first protective layer assembly, the inner wall of the coal injection gun barrel is provided with a second protective layer assembly, and one end of the coal injection gun barrel is fixedly provided with a spray head. When the coal injection gun is used, the first protective layer assembly and the second protective layer assembly are respectively arranged on the outer wall and the inner wall of the coal injection gun barrel, so that the service life of the coal injection gun can be prolonged, and the coal injection gun is also provided with two groups of coal injection branch pipes for adjusting the coal injection quantity, so that the coal injection gun is very convenient to use.
Description
Technical Field
The utility model relates to the technical field of coal injection equipment, in particular to a blast furnace coal gun with an anti-abrasion coating.
Background
The coal injection gun is one of the important devices of a blast furnace coal injection system, is made of heat-resistant seamless steel pipes, and is divided into a common coal injection gun and an oxygen coal injection gun according to the difference of injection media. The coal injection medium of the common coal injection gun is compressed air, the oxygen coal injection gun uses oxygen as a medium, wherein the common coal injection gun is divided into three types of inclined insertion type, direct insertion type and fixed tuyere according to the gun insertion mode, and the oxygen coal injection gun can be divided into four types of spiral type, contracted pipe type, centripetal type and porous type according to different nozzles.
When the existing coal injection gun is used, the inner side of the coal injection gun can bear the abrasion of coal powder flow and the abrasion of coke in a convolution area can be borne after the coal injection gun extends into the front end face of the tuyere small sleeve, so that the service life of the coal injection gun is short, the existing coal injection gun is generally only provided with a group of coal injection pipes, the coal injection quantity is not convenient to adjust, the coal injection gun is not convenient to use, and therefore the coal injection gun with the anti-abrasion coating needs to be provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a blast furnace coal gun with an anti-abrasion coating, which can prolong the service life of the coal injection gun by respectively arranging a first protective layer assembly and a second protective layer assembly on the outer wall and the inner wall of the coal injection gun barrel, and is also provided with two groups of coal injection branch pipes for adjusting the coal injection quantity so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a blast furnace coal rifle with abrasionproof decreases coating, includes that buggy jetting is taken over, the intercommunication has the coal injection to be responsible for on the outer wall that buggy jetting was taken over, the one end intercommunication that the coal injection was responsible for has three way connection, the last intercommunication of three way connection has the coal injection branch pipe, the one end that buggy jetting was taken over is provided with the coal injection gun seat, one side intercommunication of coal injection gun seat has the coal injection barrel, be provided with first protective layer subassembly on the outer wall of coal injection barrel, be provided with second protective layer subassembly on the inner wall of coal injection barrel, the one end fixed mounting of coal injection barrel has the shower nozzle.
Preferably, two groups of coal injection branch pipes are arranged on the three-way joint, and valves are fixedly mounted on the outer walls of the two groups of coal injection branch pipes.
Preferably, one end of the pulverized coal injection connecting pipe is communicated with a first connector, and the other end of the pulverized coal injection connecting pipe is communicated with a second connector.
Preferably, one side of the spray gun seat is communicated with one end of the pulverized coal injection connecting pipe through a second connector, the spray gun seat is communicated with the second connector in a sealing mode, and the spray gun seat is communicated with the coal injection gun pipe in a sealing mode.
Preferably, the first protection layer assembly comprises a first antirust layer, a first wear-resistant layer is arranged on the inner wall of the first antirust layer, a first high-temperature-resistant layer is arranged on the inner wall of the first wear-resistant layer, and the first high-temperature-resistant layer is arranged on the outer wall of the coal injection gun barrel.
Preferably, the second protection layer assembly comprises a second high-temperature-resistant layer, the second high-temperature-resistant layer is arranged on the inner wall of the coal injection gun barrel, a second wear-resistant layer is arranged on the inner wall of the second high-temperature-resistant layer, and a second anti-rust layer is arranged on the inner wall of the second wear-resistant layer.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the outer wall and the inner wall of the coal injection gun barrel are respectively provided with the first protective layer assembly and the second protective layer assembly, the first protective layer assembly comprises a first anti-rust layer and a first wear-resistant layer, the second protective layer assembly comprises a second high-temperature-resistant layer, a second wear-resistant layer and a second anti-rust layer, the outer wall and the inner wall of the coal injection gun barrel can be protected by utilizing the first protective layer assembly and the second protective layer assembly, and the service life of the coal injection gun is prolonged to a certain extent;
2. according to the utility model, the outer wall of the pulverized coal injection connecting pipe is communicated with the coal injection main pipe, one end of the coal injection main pipe is communicated with the two groups of coal injection branch pipes through the three-way joint, the outer walls of the two groups of coal injection branch pipes are respectively provided with the valve, and the valves are opened or closed to control the two groups of coal injection branch pipes, so that the coal injection amount can be adjusted, and the pulverized coal injection device is very convenient to use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a coal injection branch pipe of the main coal injection pipe according to the present invention;
FIG. 3 is a schematic cross-sectional view of a coal lance tube according to the present invention;
FIG. 4 is a schematic structural diagram of a first passivation layer assembly according to the present invention;
FIG. 5 is a schematic structural diagram of a second protective layer assembly according to the present invention.
In the figure: 1. a pulverized coal injection connecting pipe; 2. a first connector; 3. a coal injection main pipe; 4. a three-way joint; 5. coal injection branch pipes; 6. a valve; 7. a second connector; 8. a spray gun base; 9. a coal injection gun barrel; 10. a spray head; 11. a first protective layer assembly; 1101. a first antirust layer; 1102. a first wear resistant layer; 1103. a first high temperature resistant layer; 12. a second protective layer assembly; 1201. a second high temperature resistant layer; 1202. a second wear layer; 1203. and a second antirust layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution:
a blast furnace coal gun with an anti-abrasion coating comprises a coal powder injection connecting pipe 1, wherein a coal injection main pipe 3 is communicated with the outer wall of the coal powder injection connecting pipe 1, one end of the coal injection main pipe 3 is communicated with a three-way joint 4, the three-way joint 4 is communicated with coal injection branch pipes 5, the coal injection branch pipes 5 are provided with two groups on the three-way joint 4, valves 6 are fixedly arranged on the outer walls of the two groups of coal injection branch pipes 5, the coal injection main pipe 3 and the two groups of coal injection branch pipes 5 are used for feeding coal to the inside of the coal powder injection connecting pipe 1, and the opening and closing of the two groups of coal injection branch pipes 5 are controlled through the valves 6, so that the coal quantity can be adjusted;
one end of the pulverized coal injection connecting pipe 1 is communicated with a first connector 2, the other end of the pulverized coal injection connecting pipe 1 is communicated with a second connector 7, one end of the pulverized coal injection connecting pipe 1 is provided with a spray gun seat 8, one side of the spray gun seat 8 is communicated with one end of the pulverized coal injection connecting pipe 1 through the second connector 7, the spray gun seat 8 is communicated with the second connector 7 in a sealing manner, one side of the spray gun seat 8 is communicated with a coal injection gun barrel 9, the spray gun seat 8 is communicated with the coal injection gun barrel 9 in a sealing manner, one end of the coal injection gun barrel 9 is fixedly provided with a spray head 10, the pulverized coal injection connecting pipe 1 is communicated with an external air supply mechanism through the first connector 2, and after pulverized coal is mixed with air entering the pulverized coal injection connecting pipe 1, the air flow can drive the pulverized coal to be sprayed out from the spray head 10 through the coal injection gun barrel 9 for realizing coal injection of the coal gun;
be provided with first protective layer subassembly 11 on the outer wall of coal injection gun pipe 9, be provided with second protective layer subassembly 12 on the inner wall of coal injection gun pipe 9, first protective layer subassembly 11 includes first antirust coat 1101, be provided with first wearing layer 1102 on the inner wall of first antirust coat 1101, be provided with first high temperature resistant layer 1103 on the inner wall of first wearing layer 1102, first high temperature resistant layer 1103 sets up on the outer wall of coal injection gun pipe 9, second protective layer subassembly 12 includes second high temperature resistant layer 1201, second high temperature resistant layer 1201 sets up on the inner wall of coal injection gun pipe 9, be provided with second wearing layer 1202 on the inner wall of second high temperature resistant layer 1201, be provided with second antirust coat 1203 on the inner wall of second wearing layer 1202, utilize first protective layer subassembly 11 and second protective layer subassembly 12 can all play the effect of protection to the outer wall and the inner wall of coal injection gun pipe 9, the life of coal injection gun is prolonged to a certain extent.
The working principle is as follows: when the coal powder injection device is used, firstly, one end of a coal powder injection connecting pipe 1 is communicated with a first connecting head 2, the coal powder injection connecting pipe 1 is communicated with an external air supply mechanism by using the first connecting head 2, then, the outer wall of the coal powder injection connecting pipe 1 is communicated with a coal injection main pipe 3, one end of the coal injection main pipe 3 is communicated with two groups of coal injection branch pipes 5 by using a three-way connector 4, and the coal injection main pipes are used for supplying coal to the inside of the coal powder injection connecting pipe 1;
then, one side of a spray gun seat 8 is communicated with one end of the pulverized coal injection connecting pipe 1 through a second connector 7, one side of the spray gun seat 8 is communicated with a coal injection gun pipe 9, and one end of the coal injection gun pipe 9 is fixedly provided with a spray head 10 for realizing coal injection of a coal gun;
wherein be provided with first protective layer subassembly 11 and second protective layer subassembly 12 on the outer wall of coal injection barrel 9 and the inner wall respectively, utilize first protective layer subassembly 11 and second protective layer subassembly 12 can all play the effect of protection to the outer wall and the inner wall of coal injection barrel 9, prolong the life of coal injection rifle to a certain extent.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a blast furnace coal rifle with abrasionproof decreases coating, includes that buggy jetting takes over (1), its characterized in that: the intercommunication has coal injection person in charge (3) on the outer wall of coal injection takeover (1), the one end intercommunication that coal injection person in charge (3) has three way connection (4), the intercommunication has coal injection branch pipe (5) on three way connection (4), the one end that coal injection takeover (1) is provided with spray gun seat (8), one side intercommunication of spray gun seat (8) has coal injection barrel (9), be provided with first protective layer subassembly (11) on the outer wall of coal injection barrel (9), be provided with second protective layer subassembly (12) on the inner wall of coal injection barrel (9), the one end fixed mounting of coal injection barrel (9) has shower nozzle (10).
2. The blast furnace coal gun with the wear-resistant coating of claim 1, wherein: the coal injection branch pipes (5) are provided with two groups on the three-way joint (4), and the outer walls of the coal injection branch pipes (5) are fixedly provided with valves (6).
3. The blast furnace coal gun with the wear-resistant coating of claim 1, wherein: one end of the coal powder injection connecting pipe (1) is communicated with a first connector (2), and the other end of the coal powder injection connecting pipe (1) is communicated with a second connector (7).
4. The blast furnace coal gun with the wear-resistant coating of claim 3, wherein: one side of spray gun seat (8) is through the one end intercommunication of second connector (7) and buggy jetting takeover (1), sealed intercommunication between spray gun seat (8) and second connector (7), sealed intercommunication between spray gun seat (8) and coal injection barrel (9).
5. The blast furnace coal gun with the wear-resistant coating of claim 1, wherein: the first protection layer assembly (11) comprises a first antirust layer (1101), a first wear-resistant layer (1102) is arranged on the inner wall of the first antirust layer (1101), a first high-temperature-resistant layer (1103) is arranged on the inner wall of the first wear-resistant layer (1102), and the first high-temperature-resistant layer (1103) is arranged on the outer wall of the coal injection gun barrel (9).
6. The blast furnace coal gun with the wear-resistant coating of claim 1, wherein: the second protection layer assembly (12) comprises a second high-temperature-resistant layer (1201), the second high-temperature-resistant layer (1201) is arranged on the inner wall of the coal injection gun barrel (9), a second wear-resistant layer (1202) is arranged on the inner wall of the second high-temperature-resistant layer (1201), and a second anti-rust layer (1203) is arranged on the inner wall of the second wear-resistant layer (1202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120689867.8U CN215628053U (en) | 2021-04-06 | 2021-04-06 | Blast furnace coal gun with anti-abrasion coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120689867.8U CN215628053U (en) | 2021-04-06 | 2021-04-06 | Blast furnace coal gun with anti-abrasion coating |
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| Publication Number | Publication Date |
|---|---|
| CN215628053U true CN215628053U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120689867.8U Expired - Fee Related CN215628053U (en) | 2021-04-06 | 2021-04-06 | Blast furnace coal gun with anti-abrasion coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117265197A (en) * | 2023-10-12 | 2023-12-22 | 秦皇岛凯优科技有限公司 | Blast furnace coal injection gun with anti-drop structure |
-
2021
- 2021-04-06 CN CN202120689867.8U patent/CN215628053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117265197A (en) * | 2023-10-12 | 2023-12-22 | 秦皇岛凯优科技有限公司 | Blast furnace coal injection gun with anti-drop structure |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |