CN114317857A - Blast furnace chute gate with ignition hole and ignition method - Google Patents
Blast furnace chute gate with ignition hole and ignition method Download PDFInfo
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- CN114317857A CN114317857A CN202111662241.9A CN202111662241A CN114317857A CN 114317857 A CN114317857 A CN 114317857A CN 202111662241 A CN202111662241 A CN 202111662241A CN 114317857 A CN114317857 A CN 114317857A
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Abstract
The invention relates to a blast furnace chute gate with an ignition hole, which comprises a chute door, a chute door base, an ignition hole body, an ignition hole cover, an observation hole and a lifting lug, wherein the ignition hole body is arranged on the chute door base; chute door and chute door base bolted disassembly connect, and the chute door includes bottom plate, frame, door closure board, the bottom fixed connection bottom plate of frame, the top fixed connection door closure board of frame, door closure board are frame structure, connect the lug on the frame, are equipped with the ignition hole body on the bottom plate, on the bottom surface of bottom plate, the periphery of ignition hole body is equipped with temperature-resistant layer, the drill way pressure contact fire hole lid of ignition hole body, the ignition hole lid is connected with the bottom plate upset, connect the observation hole on the ignition hole lid. The operation of burning blast furnace gas during blast furnace damping down is completed through the ignition hole on the chute overhaul gate. The ignition hole can be matched with other furnace top detection holes to finish the combustion and observation of blast furnace gas in a blast furnace damping down state. The safety of blast furnace ignition is improved.
Description
Technical Field
The invention relates to an iron-making blast furnace in iron metallurgy, in particular to a blast furnace chute gate with an ignition hole.
Background
Blast furnace production is widely used as a mainstream iron-making production mode. However, in the production process of the blast furnace, maintenance operations such as air exchange, gas system repair welding and the like are required to be carried out every year, and damping down operation is required at the moment. In order to avoid accidents such as explosion of the top gas and gas poisoning in the process, the gas needs to be ignited.
The current common ignition mode is that an ignition device is inserted into a manhole of a furnace top, the ignition device is used for ignition when contacting blast furnace gas, and the manhole of the furnace top is used as an observation channel to observe whether the gas is ignited or not. The problem of this method is that there is a blind observation area, and there may be a case where a part of the area is not ignited, and in this case, accidents such as gas explosion and the like easily occur. The selection of a reliable ignition site, while facilitating the observation of the ignition status of the top gas, is therefore a significant problem.
Disclosure of Invention
The invention aims to solve the technical problem of providing a blast furnace chute gate with an ignition hole and an ignition method, so that the ignition reliability and the safety of operators are ensured.
In order to achieve the purpose, the invention adopts the following technical scheme:
a blast furnace chute gate with an ignition hole comprises a chute door, a chute door base, an ignition hole body, an ignition hole cover, an observation hole and a lifting lug; chute door and chute door base bolted disassembly connect, and the chute door includes bottom plate, frame, door closure board, the bottom fixed connection bottom plate of frame, the top fixed connection door closure board of frame, door closure board are frame structure, connect the lug on the frame, are equipped with the ignition hole body on the bottom plate, on the bottom surface of bottom plate, the periphery of ignition hole body is equipped with temperature-resistant layer, the drill way pressure contact fire hole lid of ignition hole body, the ignition hole lid is connected with the bottom plate upset, connect the observation hole on the ignition hole lid.
The observation hole include observation hole mirror, observation lid, observation pipe, observation hole apron, observation hole lid seat, fixed ring board, the observation pipe passes through the fixed ring board and is connected with the ignition hole lid, observation pipe and observation hole lid seat fixed connection, the crimping observation hole apron on the drill way of observation hole lid seat, fixed connection observation hole mirror on the observation hole apron, the one end of observation hole apron is passed through the short round pin and is articulated with observation hole lid seat, the other end passes through the bolt and pegs graft with observation hole lid seat.
The observation tube comprises an inner tube and an outer tube, and a refractory fiber felt is arranged between the inner tube and the outer tube.
The observation hole mirror comprises a lens barrel, a mirror cover is connected to the lens barrel, and a lens is arranged in the mirror cover.
And a round hole communicated with the inner hole of the lens cone is arranged in the middle of the observation hole cover plate.
The ignition hole cover is symmetrically provided with connecting plates through two ends, one end of each connecting plate is hinged with the base plate through a first pin shaft, and the other end of each connecting plate is connected with the base plate in an inserting mode through a second pin shaft.
The temperature-resistant layer comprises a shell and anchoring nails, the shell and the anchoring nails are fixedly connected to the bottom surface of the bottom plate, and the anchoring nails are coated with a filling refractory material in the shell.
The ignition method of the blast furnace chute gate with the ignition hole comprises the following steps:
when the blast furnace is ignited, the ignition hole cover is opened, the ignition equipment quickly extends into the furnace from the body with the ignition hole, and is ignited after contacting with blast furnace gas; and then under the condition that the gas is confirmed to be ignited, the ignition device is drawn out to close the ignition hole cover, the burning flame condition and the burning area are observed by utilizing the observation hole, and the protective steam is introduced into the furnace under the condition that the natural extinction of the flame and the burnout of the gas are confirmed.
Compared with the prior art, the invention has the beneficial effects that:
the operation of burning blast furnace gas during blast furnace damping down is completed through the ignition hole on the chute overhaul gate. The ignition hole can be matched with other furnace top detection holes to finish the combustion and observation of blast furnace gas in a blast furnace damping down state. The safety of blast furnace ignition is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the structure of the present invention.
FIG. 3 is a schematic view of the viewing tube connection.
Fig. 4 is a top view of the observation tube.
In the figure: the device comprises a chute door 1, a chute door base 2, an ignition hole body 3, an ignition hole cover 4, an observation hole 5, a lifting lug 6, a bottom plate 7, a frame 8, a door cover plate 9, a shell 10, an anchoring nail 11, a first pin shaft 12, a second pin shaft 13, an observation hole mirror 14, an observation cover 15, an observation pipe 16, an observation hole cover plate 17, an observation hole cover base 18, a fixed ring plate 19, an inner pipe 20, an outer pipe 21, a refractory fiber felt 22, a lens cone 23, a mirror cover 24, a lens 25, a short pin 26, a plug pin 27 and a connecting plate 28.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
referring to fig. 1-4, the blast furnace chute gate with the ignition hole comprises a chute door 1, a chute door base 2, an ignition hole body 3, an ignition hole cover 4, an observation hole 5 and a lifting lug 6.
Chute door 1 and chute door base 2 bolted disassembly connect, and chute door 1 includes bottom plate 7, frame 8, door cover board 9, and the bottom fixed connection bottom plate 7 of frame 8, the top fixed connection door cover board 9 of frame 8, door cover board 9 are frame structure, connect lug 6 on the frame.
Be equipped with ignition hole body 3 on bottom plate 7, on the bottom surface of bottom plate 7, the periphery of ignition hole body 3 is equipped with temperature resistant layer, and temperature resistant layer includes casing 10, anchor nail 11, and casing 10, anchor nail 11 fixed connection are on the bottom surface of bottom plate 7, and the packing refractory material cladding anchor nail 11 in the casing.
The orifice of the ignition hole body 3 is in pressure contact with the ignition hole cover 4, the ignition hole cover 18 is symmetrically provided with connecting plates 28 through two ends, one end of the connecting plate 28 is hinged with the bottom plate 7 through a first pin shaft 12, and the other end of the connecting plate 28 is inserted into the bottom plate 7 through a second pin shaft 13.
The ignition hole cover 4 is connected with an observation hole 5.
The observation hole 5 comprises an observation hole mirror 14, an observation cover 15, an observation tube 16, an observation hole cover plate 17, an observation hole cover seat 18 and a fixed ring plate 19, the observation tube 16 is connected with the ignition hole cover 4 through the fixed ring plate 19,
the observation tube 16 comprises an inner tube 20 and an outer tube 21, a refractory fiber felt 22 is arranged between the inner tube 20 and the outer tube 21,
the observation tube 16 is fixedly connected with the observation hole cover seat 18, the hole opening of the observation hole cover seat 18 is pressed and connected with the observation hole cover plate 17, the observation hole lens 14 is fixedly connected with the observation hole cover plate 17,
the observation hole mirror 14 comprises a lens barrel 23, a mirror cover 24 is connected on the lens barrel 23, and a lens 25 is arranged in the mirror cover 24.
The middle part of the observation hole cover plate 17 is provided with a round hole communicated with the inner hole of the lens cone 23, one end of the observation hole cover plate 17 is hinged with the observation hole cover seat 18 through a short pin 26, and the other end is inserted with the observation hole cover seat 18 through a bolt 27.
The ignition method of the blast furnace chute gate with the ignition hole comprises the following steps:
when the blast furnace is ignited, the ignition hole cover is opened, the ignition equipment quickly extends into the furnace from the body with the ignition hole, and is ignited after contacting with blast furnace gas; and then under the condition that the gas is confirmed to be ignited, the ignition device is drawn out to close the ignition hole cover, the burning flame condition and the burning area are observed by utilizing the observation hole, and the protective steam is introduced into the furnace under the condition that the natural extinction of the flame and the burnout of the gas are confirmed.
The foregoing is considered as illustrative only of the principles of the invention and is not to be in any way limiting, since all equivalent changes and modifications are intended to be included within the scope of the appended claims.
Claims (8)
1. A blast furnace chute gate with an ignition hole is characterized by comprising a chute door, a chute door base, an ignition hole body, an ignition hole cover, an observation hole and a lifting lug; chute door and chute door base bolted disassembly connect, and the chute door includes bottom plate, frame, door closure board, the bottom fixed connection bottom plate of frame, the top fixed connection door closure board of frame, door closure board are frame structure, connect the lug on the frame, are equipped with the ignition hole body on the bottom plate, on the bottom surface of bottom plate, the periphery of ignition hole body is equipped with temperature-resistant layer, the drill way pressure contact fire hole lid of ignition hole body, the ignition hole lid is connected with the bottom plate upset, connect the observation hole on the ignition hole lid.
2. The blast furnace chute gate with the ignition hole as claimed in claim 1, wherein the observation hole comprises an observation hole mirror, an observation cover, an observation tube, an observation hole cover plate, an observation hole cover seat and a fixed ring plate, the observation tube is connected with the ignition hole cover through the fixed ring plate, the observation tube is fixedly connected with the observation hole cover seat, the observation hole cover plate is pressed on the hole opening of the observation hole cover seat, the observation hole mirror is fixedly connected on the observation hole cover plate, one end of the observation hole cover plate is hinged with the observation hole cover seat through a short pin, and the other end of the observation hole cover plate is plugged with the observation hole cover seat through a bolt.
3. The blast furnace chute gate with ignition hole of claim 2, wherein said observation tube comprises an inner tube and an outer tube with a refractory fiber felt disposed therebetween.
4. The blast furnace chute gate with the ignition hole as claimed in claim 2, wherein the observation hole mirror comprises a lens barrel, a lens cover is connected to the lens barrel, and a lens is arranged in the lens cover.
5. The blast furnace chute gate with the ignition hole as claimed in claim 2, wherein the central part of the observation hole cover plate is provided with a round hole communicated with the inner hole of the lens barrel.
6. The blast furnace chute gate with an ignition hole as claimed in claim 1, wherein the ignition hole cover is symmetrically provided with connecting plates at two ends, one end of the connecting plate is hinged with the bottom plate through a first pin shaft, and the other end of the connecting plate is inserted into the bottom plate through a second pin shaft.
7. The blast furnace chute gate with the ignition hole as claimed in claim 1, wherein the temperature resistant layer comprises a shell and anchoring nails, the shell and the anchoring nails are fixedly connected to the bottom surface of the bottom plate, and the anchoring nails are covered by a filling refractory material in the shell.
8. The method for igniting the blast furnace chute gate with an ignition hole as claimed in claim 1, characterized in that,
when the blast furnace is ignited, the ignition hole cover is opened, the ignition equipment quickly extends into the furnace from the body with the ignition hole, and is ignited after contacting with blast furnace gas; and then under the condition that the gas is confirmed to be ignited, the ignition device is drawn out to close the ignition hole cover, the burning flame condition and the burning area are observed by utilizing the observation hole, and the protective steam is introduced into the furnace under the condition that the natural extinction of the flame and the burnout of the gas are confirmed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111662241.9A CN114317857B (en) | 2021-12-30 | 2021-12-30 | Blast furnace chute gate with ignition hole and ignition method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111662241.9A CN114317857B (en) | 2021-12-30 | 2021-12-30 | Blast furnace chute gate with ignition hole and ignition method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114317857A true CN114317857A (en) | 2022-04-12 |
| CN114317857B CN114317857B (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111662241.9A Active CN114317857B (en) | 2021-12-30 | 2021-12-30 | Blast furnace chute gate with ignition hole and ignition method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04329810A (en) * | 1991-05-02 | 1992-11-18 | Nkk Corp | Blowing out method of blast furnace |
| CN201074830Y (en) * | 2007-08-03 | 2008-06-18 | 武汉摩林翰机电设备有限公司 | Ignition device for blast furnace roof |
| CN201206838Y (en) * | 2008-04-18 | 2009-03-11 | 武汉摩林翰机电设备有限公司 | Top ignition device for blast furnace |
| CN102618677A (en) * | 2012-03-21 | 2012-08-01 | 马钢(集团)控股有限公司 | Method for cleaning materials in large-scale blast furnace in overhaul |
| CN108504808A (en) * | 2018-05-21 | 2018-09-07 | 石钢京诚装备技术有限公司 | A kind of blast furnace top fire hole sealing device |
| CN109957629A (en) * | 2019-03-29 | 2019-07-02 | 河钢股份有限公司承德分公司 | A kind of encapsulating method of blast furnace roof water-cooling sliding chute manhole |
| CN110643761A (en) * | 2019-04-11 | 2020-01-03 | 广东韶钢松山股份有限公司 | Blast furnace top ignition method |
| CN210127251U (en) * | 2019-03-29 | 2020-03-06 | 河钢股份有限公司承德分公司 | Blast furnace roof water-cooling chute inspection hole sealing structure |
-
2021
- 2021-12-30 CN CN202111662241.9A patent/CN114317857B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04329810A (en) * | 1991-05-02 | 1992-11-18 | Nkk Corp | Blowing out method of blast furnace |
| CN201074830Y (en) * | 2007-08-03 | 2008-06-18 | 武汉摩林翰机电设备有限公司 | Ignition device for blast furnace roof |
| CN201206838Y (en) * | 2008-04-18 | 2009-03-11 | 武汉摩林翰机电设备有限公司 | Top ignition device for blast furnace |
| CN102618677A (en) * | 2012-03-21 | 2012-08-01 | 马钢(集团)控股有限公司 | Method for cleaning materials in large-scale blast furnace in overhaul |
| CN108504808A (en) * | 2018-05-21 | 2018-09-07 | 石钢京诚装备技术有限公司 | A kind of blast furnace top fire hole sealing device |
| CN109957629A (en) * | 2019-03-29 | 2019-07-02 | 河钢股份有限公司承德分公司 | A kind of encapsulating method of blast furnace roof water-cooling sliding chute manhole |
| CN210127251U (en) * | 2019-03-29 | 2020-03-06 | 河钢股份有限公司承德分公司 | Blast furnace roof water-cooling chute inspection hole sealing structure |
| CN110643761A (en) * | 2019-04-11 | 2020-01-03 | 广东韶钢松山股份有限公司 | Blast furnace top ignition method |
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| CN114317857B (en) | 2022-12-20 |
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