CN101008546A - Quick change method of RH vacuum chamber - Google Patents
Quick change method of RH vacuum chamber Download PDFInfo
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- CN101008546A CN101008546A CN 200710010171 CN200710010171A CN101008546A CN 101008546 A CN101008546 A CN 101008546A CN 200710010171 CN200710010171 CN 200710010171 CN 200710010171 A CN200710010171 A CN 200710010171A CN 101008546 A CN101008546 A CN 101008546A
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- vacuum chamber
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- vacuum room
- baking
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Abstract
The invention relates to a RH vacuum room quick-change method, which uses air as energy medium, uses aerator for aerating the air, mixes the air and coke gas at (4-6):1 ration to burn and bake the vacuum room, to directly heat the lower part of vacuum room, arranges one injector at each waiting position of two, when the steel water is treated, the vacuum machine moves the vacuum room to the waiting position to be baked and maintained, while the vacuum machine moves the vacuum room from another waiting position to the treating position to treat the steel water; when one process is treated, the vacuum room is changed to the waiting position to be maintained. The invention improves the baking effect, improves the baking temperature, and shorten the prepare time of RH vacuum room.
Description
Technical field
A kind of RH application of vacuum of the present invention fast-change technology.
Background technology
In the prior art, the RH application of vacuum has one to handle the position, treats the seat in the plane for two.Vacuum chamber is produced handling the position, is treating that the seat in the plane toasts.Treat that the seat in the plane baking is to be heated by coal gas and 1: 1.1 proportioning of oxygen, the length of flame can only reach 1.2m, and the highest baking temperature of vacuum chamber can only reach 800 ℃, and temperature is evenly distributed.This temperature can not directly be handled molten steel, and the vacuum chamber that must will treat the seat in the plane moves to be handled the position and be baked to more than 1250 ℃ with RH top rifle and can handle molten steel.And RH top rifle baking temperature per hour can only improve 50 ℃, and being heated to 1250 ℃ by 800 ℃ like this needed with 4-5 hour, influenced RH application of vacuum production capacity so greatly and discharged.
After time (5-6 jar) watered in one of production, because inserting pipe, vacuum chamber corroded by molten steel, must carry out the spray repair reparation and water inferior the use in order to next.The spray repair time is about two hours.Because spray repair equipment is only being handled one of position, so must vacuum chamber be inserted pipe carry out the spray repair reparation handling the position after watering time at one.The RH application of vacuum must be shut down spray repair about two hours like this, can not produce, and restriction is produced and carried out continuously.
Summary of the invention
The purpose of this invention is to provide a kind of cured effect that improves, improve baking temperature, shorten the RH vacuum chamber and reorganize and outfit the time, realize producing continuous a kind of RH vacuum chamber quick change method, it is energy medium that this technology adopts air, increase the ratio that cooperates of air and coal gas, improve baking temperature, the increase length of flame; Vacuum chamber is treating that the seat in the plane carries out spray repair, has overcome to treat the low and discontinuous phenomenon of spray repair of seat in the plane baking temperature.
For achieving the above object, technical scheme of the present invention is described below:
A kind of RH vacuum chamber quick change method, it is characterized in that: this method uses air as energy medium, adopts the air blast air blast to blow into air, by air and coke-stove gas in (4-6): vacuum chamber is toasted in 1 ratio mixed combustion, strengthen the length of flame, directly be heated to the vacuum chamber bottom; Treat that at two the seat in the plane respectively is provided with a gun, handle the position and handle after the molten steel, by the vacuum chassis vacuum chamber is moved to from processing and treats the seat in the plane, carry out the spray repair baking; Simultaneously, by the vacuum chassis vacuum chamber is moved to from another standby and handles the position, handle molten steel, water time final vacuum chamber and change to the standby position soon and carry out spray repair by handling the position when producing one.
The invention has the beneficial effects as follows:
1) because air-energy medium addition is bigger, the vacuum chamber temperature is brought up to more than 1250 ℃ by former about 800 ℃, satisfies vacuum chamber and is moved to by standby and handles the temperature requirement that molten steel is directly handled in the position; Baking flame adds by original 1.2 meters and grows to 7.5 meters, but direct baking realizes along vacuum chamber short transverse uniformity of temperature profile to the vacuum chamber bottom.
2) treating that the seat in the plane carries out spray repair, overcoming, further discharging production capacity, RH steel production capacity is improved a lot handling the non-continuous event that spray repair is carried out in the position.
Description of drawings
Fig. 1 is the structural representation of roaster.
Fig. 2 is the structural representation of baking pipeline.
Among Fig. 1: 1-UV probe 2-gas passage 3-air duct 4-mixing chamber 5-burner block 6-igniter
Among Fig. 2: 7-igniting gas stop valve 8-gas control gas stop valve 9-gas regulator 10-air control valve
The specific embodiment
A kind of RH vacuum chamber quick change method, this method use air as energy medium, adopt the air blast air blast to blow into air, by air and coke-stove gas in (4-6): vacuum chamber is toasted in 1 ratio mixed combustion, and the increasing length of flame directly is heated to the vacuum chamber bottom; Treat that at two the seat in the plane respectively is provided with a gun, handle the position and handle after the molten steel, by the vacuum chassis vacuum chamber is moved to from processing and treats the seat in the plane, carry out the spray repair baking; Simultaneously, by the vacuum chassis vacuum chamber is moved to from another standby and handles the position, handle molten steel, water time final vacuum chamber and change to the standby position soon and carry out spray repair by handling the position when producing one.
See Fig. 1, Fig. 2, the accompanying drawings roaster course of work.When needs toast, will hang and treat the seat in the plane and connect various medium pipelines from the dried vacuum chamber in dry position, at first will toast clad manually lifts to limes superiors, on the baking operation screen, click under the auto state and start, master controller sends instruction control point fire gas stop valve (7) and opens, transmission instruction simultaneously allows igniter (6) work will put fire gas and lights, at this moment the probe of the UV above burner (1) detects the flame that the burner mouth has sustained combustion, UV probe (1) detected signal sends to master controller, master controller transmission instruction unpack gas control gas stop valve (8) starts the baking blower fan simultaneously and closes igniting gas stop valve (7), after the baking flame ignition, UV probe (1) detects the flame that the burner mouth has sustained combustion, UV probe (1) detected signal sends to master controller, and master controller sends instruction control gas control gas stop valve (8) and stays open state and control baking fan operation.The baking air quantity is regulated in 1: 4.3 ratio according to setting the coal gas amount, sets gas regulator opening degree 10% during igniting, and setting baking coal gas amount after the roaster work is 300Nm
3/ h baking vacuum chamber is temperature required to producing.Produce temperature required back and set and toast coal gas amount 200Nm when vacuum chamber reaches
3/ h is the vacuum chamber insulation.
Claims (1)
1, a kind of RH vacuum chamber quick change method, it is characterized in that: this method uses air as energy medium, adopts the air blast air blast to blow into air, by air and coke-stove gas in (4-6): vacuum chamber is toasted in 1 ratio mixed combustion, strengthen the length of flame, directly be heated to the vacuum chamber bottom; Treat that at two the seat in the plane respectively is provided with a gun, handle the position and handle after the molten steel, by the vacuum chassis vacuum chamber is moved to from processing and treats the seat in the plane, carry out the spray repair baking; Simultaneously, by the vacuum chassis vacuum chamber is moved to from another standby and handles the position, handle molten steel, water time final vacuum chamber and change to the standby position soon and carry out spray repair by handling the position when producing one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710010171 CN101008546A (en) | 2007-01-25 | 2007-01-25 | Quick change method of RH vacuum chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710010171 CN101008546A (en) | 2007-01-25 | 2007-01-25 | Quick change method of RH vacuum chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101008546A true CN101008546A (en) | 2007-08-01 |
Family
ID=38697085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710010171 Pending CN101008546A (en) | 2007-01-25 | 2007-01-25 | Quick change method of RH vacuum chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101008546A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892359A (en) * | 2010-07-21 | 2010-11-24 | 中国重型机械研究院有限公司 | Arrangement technology of multifunctional gun in refining outside RH furnace |
| CN102212654A (en) * | 2011-05-26 | 2011-10-12 | 中国重型机械研究院有限公司 | Arrangement structure of double-station RH multifunctional top lance |
| CN102978344A (en) * | 2012-12-11 | 2013-03-20 | 中冶南方工程技术有限公司 | RH vacuum chamber baking system |
| CN103981336A (en) * | 2014-05-24 | 2014-08-13 | 北京首钢国际工程技术有限公司 | Vacuum chamber bottom discharging type RH (Ruhstahl Hausen) process layout method |
| CN106544474A (en) * | 2015-09-17 | 2017-03-29 | 鞍钢股份有限公司 | A kind of method of operating of medium high carbon steel grade vacuum chamber quick change |
| CN114645111A (en) * | 2022-03-25 | 2022-06-21 | 广东韶钢松山股份有限公司 | Anti-blocking method for dip pipe of RH furnace |
-
2007
- 2007-01-25 CN CN 200710010171 patent/CN101008546A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892359A (en) * | 2010-07-21 | 2010-11-24 | 中国重型机械研究院有限公司 | Arrangement technology of multifunctional gun in refining outside RH furnace |
| CN102212654A (en) * | 2011-05-26 | 2011-10-12 | 中国重型机械研究院有限公司 | Arrangement structure of double-station RH multifunctional top lance |
| CN102212654B (en) * | 2011-05-26 | 2012-12-19 | 中国重型机械研究院有限公司 | Arrangement structure of double-station RH multifunctional top lance |
| CN102978344A (en) * | 2012-12-11 | 2013-03-20 | 中冶南方工程技术有限公司 | RH vacuum chamber baking system |
| CN102978344B (en) * | 2012-12-11 | 2014-04-09 | 中冶南方工程技术有限公司 | RH vacuum chamber baking system |
| CN103981336A (en) * | 2014-05-24 | 2014-08-13 | 北京首钢国际工程技术有限公司 | Vacuum chamber bottom discharging type RH (Ruhstahl Hausen) process layout method |
| CN106544474A (en) * | 2015-09-17 | 2017-03-29 | 鞍钢股份有限公司 | A kind of method of operating of medium high carbon steel grade vacuum chamber quick change |
| CN106544474B (en) * | 2015-09-17 | 2018-11-06 | 鞍钢股份有限公司 | A kind of operating method of medium high carbon steel grade vacuum chamber quick change |
| CN114645111A (en) * | 2022-03-25 | 2022-06-21 | 广东韶钢松山股份有限公司 | Anti-blocking method for dip pipe of RH furnace |
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