CN108060290A - Gas toast device and its baking method below RH stoves vacuum chamber - Google Patents
Gas toast device and its baking method below RH stoves vacuum chamber Download PDFInfo
- Publication number
- CN108060290A CN108060290A CN201810093260.6A CN201810093260A CN108060290A CN 108060290 A CN108060290 A CN 108060290A CN 201810093260 A CN201810093260 A CN 201810093260A CN 108060290 A CN108060290 A CN 108060290A
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- Prior art keywords
- gas
- rotating arm
- burner
- vacuum chamber
- valve
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The present invention relates to metallurgical apparatus for baking field, gas toast device below especially a kind of RH stoves vacuum chamber, including support column, gas pipeline, support column is fixed on by ring flange on field ground, and the top of support column is provided with rotation axis, and rotation axis is connected by gear set with motor；Rotating arm is installed in rotation axis, the end of rotating arm is equipped with burner, gas pipeline is additionally provided on rotating arm, blank-plate valve is installed on gas pipeline, hand sluice valve, pressure transmitter, coal gas fast cut valve and gas regulator, the external nitrogen purger of gas pipeline, burner external compressed air pipeline.The configuration of the present invention is simple, it is easy to operate, the service life of furnace body is effectively increased, reduces production cost.
Description
Technical field
The present invention relates to metallurgical apparatus for baking field, gas toast device and its baking below especially a kind of RH stoves vacuum chamber
Roasting method.
Background technology
RH bakings are one of important steps in vacuum refining production process, are mainly used for new block, cold repair, drying, turnover
And the various RH vacuum bakeouts being rapidly heated online.The performance of apparatus for baking to liquid steel temperature, steelmaking operations rate, furnace life etc. all
Have a great impact.RH bakings are between steel-making and the main production process of two, cast steel, and the height of RH stove baking temperatures is to association
Adjusting body production plays an important role, more great to the meaning of continuous casting.Molten steel operating from steel making working procedure to continuous casting working procedure
The heat-energy losses of middle molten steel are very big, if not using baking method, compensate the heat-energy losses of molten steel, ensure temperature during pouring molten steel
Degree certainly will will improve the tapping temperature of molten steel, but this can bring a series of problems：（1）Extend the duration of heat, increase raw material and disappear
Consumption improves steel-making cost；（2）Accelerate the speed that furnace lining is corroded, shorten furnace life.
RH stove vacuum chambers apparatus for baking traditional at present is generally toasted using top gun, and the fuel of top gun baking generally liquefies
Gas, baking is of high cost, and top gun, by the top plug-in type of vacuum chamber, the flame below top gun burns upwards, causes vacuum chamber
Lower part baking it is insufficient.
The content of the invention
Existing deficiency to solve above-mentioned technical problem, the present invention is directed to propose a kind of baking temperature is uniform, at low cost, baking
Gas toast device and its baking method below roasting efficient RH stoves vacuum chamber.
The present invention adopts the following technical scheme that：
Gas toast device below a kind of RH stoves vacuum chamber, including support column, gas pipeline, support column is fixed on by ring flange
On field ground, the top of support column is provided with rotation axis, and rotation axis is connected by gear set with motor；It is equipped in rotation axis
Rotating arm, the end of rotating arm are equipped with burner, gas pipeline are additionally provided on rotating arm, blind plate is equipped on gas pipeline
Valve, hand sluice valve, pressure transmitter, coal gas fast cut valve and gas regulator, the external nitrogen purger of gas pipeline, burner
External compressed air pipeline.
A kind of baking method of apparatus for baking in claim 1 to 2 described in any one carries out as follows：
（1）It checks whether blank-plate valve and coal gas fast cut valve are opened, checks whether gas pipeline is intact, whether gas pressure is in just
In 8 ~ 15KPa of normal scope；
（2）The rotating arm for starting control cabinet rotates forward switch button, rotating arm is rotated to vacuum chamber, the burner of device to be combusted
Face vacuum chamber stops rotating into burner；
（3）The burner switch on control cabinet is opened, then turn on the gas-fire fast cut valve, pilot flame, and igniting is completed；
（4）After the completion of igniting, flame combustion state is observed, after flame combustion is stablized, coal gas tune is adjusted according to indoor heating curve
Save valve control temperature；
（5）Coal gas fast cut valve and gas regulator are closed successively first when closing fire, and nitrogen gas control valve nitrogen is opened after fray-out of flame
Gas pipeline is swept in air-blowing, starts the rotation revolution of arm switch button of control cabinet, and rotating arm, which returns to initial position of readiness, to be stopped.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention below vacuum chamber using toasting, and from bottom to top, baking is abundant, and vacuum chamber is heated evenly, of the invention for flame
Fuel uses coal gas, of low cost；Part safety cut-out device and chain setting are increased to fuel gas pipeline, ensure that the peace of coal gas
Entirely use, burner is rotated to below vacuum chamber during baking, is rotated when need not toast to nonclient area, do not interfere steel vehicle into
Go out.
Further, the preferred embodiment that uses of the present invention is：
Driving gear on motor output shaft is engaged with the driven gear that rotation axis top is set.
Description of the drawings
Fig. 1 is the structure diagram of the prior art；
Fig. 2 is the structure diagram of the present invention；
Fig. 3 is the structure diagram of gas pipeline of the present invention；
In figure：Ring flange 1；Support column 2；Rotation axis 3；Driving gear 4；Driven gear 5；Motor 6；Rotating arm 7；Gas pipeline 8；
Blank-plate valve 9；Hand sluice valve 10；Pressure transmitter 11；Coal gas fast cut valve 12；Gas regulator 13；Burner 14；Nitrogen pipeline
15；Compressed air pipe 16；Nitrogen gas control valve 17；Vacuum chamber 18；Into burner 19.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
Referring to attached drawing 1 to attached drawing 3：Gas toast device below a kind of RH stoves vacuum chamber, by support column 2 and gas pipeline 8
Composition, support column 2 is fixed on by ring flange 1 on field ground, and the top of support column 2 is provided with rotation axis 3, in rotation axis 3
The driven gear 5 that portion is set is engaged with the driving gear 4 on the output shaft of motor 6；Rotating arm 7 in rotation axis 3 is installed, is rotated
The end of arm 7 is equipped with burner 14, and burner 14 uses carborundum high-performance electric igniter, and burner 14 passes through metal hose
External compressed air pipeline 16.
Gas pipeline 8 is additionally provided on rotating arm 7, gas pipeline 8 is rotated with the rotation of rotating arm 7, and gas pipeline 8 is logical
It crosses metal hose to be connected with nitrogen purger 15, blank-plate valve 9, hand sluice valve 10, pressure is sequentially installed on gas pipeline 8 and is become
Send device 11, coal gas fast cut valve 12, gas regulator 13；Flame detector, coal are installed between gas regulator 13 and burner 14
Gas lights a fire to being toasted in vacuum chamber 18 to burner 14 by being entered into burner 19 in burner 14, by igniter.
The present invention in use,（1）Whether operating personnel's site inspection blank-plate valve 9 and hand sluice valve 10 are opened, and check combustion
Whether feed channel 8 is intact, does not reveal coal gas, and whether in 8 ~ 15KPa of normal range (NR), rotating actuator is gas pressure value
It is no intact；
（2）The rotating arm 7 for starting the control cabinet at scene rotates forward switch button, and rotating arm 7 is rotated to 18 lower section of vacuum chamber, waits to fire
The burner face vacuum chamber 18 of burner 14 stops rotating into during burner 19；
（3）The burner switch on control cabinet is opened, the igniter startup of setting burner 14 is voluntarily closed after ten minutes, so
After turn on the gas-fire fast cut valve 12, gas regulator 13 is reached 10%, pilot flame, igniting is completed；
（4）After the completion of igniting, flame combustion state is observed, after flame combustion is stablized, temperature is controlled by adjusting gas regulator 13
Degree；
（5）The connection of compressed air pipe 16 and burner 14 is disconnected when closing fire first, closes coal gas fast cut valve 12 and coal successively
Gas regulating valve 13 opens nitrogen gas control valve 17 and carries out the gas of coal gas and nitrogen with nitrogen purging gas pipeline and puts after fray-out of flame
It changes, the rotating arm 7 for starting control cabinet turns round switch button, and rotating arm 7, which returns to initial position of readiness, to be stopped, in case next time uses.
When gas pressure is less than alarm value, blank-plate valve 9 is voluntarily cut off, and the setting of hand sluice valve 10 is mainly that apparatus for baking faces
Coal gas is cut off during Shi Qiting, safety guarantee is provided, after the pressure transmitter alarm for acting as detecting pressure of coal gas fast cut valve 12,
To the cut-out of coal gas after burner accident extinguishing.
It these are only the specific embodiment of the present invention, but the protection of the present invention is without being limited thereto, any the art
Technical staff the equivalent variation of thinkable the technical program technical characteristic or replacement, all cover in protection scope of the present invention
Within.
Claims (3)
1. a kind of gas toast device below RH stoves vacuum chamber, including support column, gas pipeline, it is characterised in that：Support column leads to
It crosses ring flange to be fixed on field ground, the top of support column is provided with rotation axis, and rotation axis is connected by gear set with motor；
Rotating arm is installed, the end of rotating arm is equipped with burner, gas pipeline, Gas Pipe are additionally provided on rotating arm in rotation axis
Blank-plate valve, hand sluice valve, pressure transmitter, coal gas fast cut valve and gas regulator, gas pipeline external nitrogen are installed on road
Purger, burner external compressed air pipeline.
2. gas toast device below RH stoves vacuum chamber according to claim 1, it is characterised in that：On motor output shaft
Driving gear is engaged with the driven gear that rotation axis top is set.
3. a kind of baking method of the apparatus for baking in claim 1 to 2 described in any one carries out as follows：
It checks whether blank-plate valve and coal gas fast cut valve are opened, checks whether gas pipeline is intact, whether gas pressure is in normal
In 8 ~ 15KPa of scope；
The rotating arm for starting control cabinet rotates forward switch button, rotating arm is rotated to vacuum chamber, the burner of device to be combusted is just
It stops rotating to vacuum chamber into burner；
The burner switch on control cabinet is opened, then turn on the gas-fire fast cut valve, pilot flame, and igniting is completed；
After the completion of igniting, flame combustion state is observed, after flame combustion is stablized, gas regulator is adjusted according to indoor heating curve
Control temperature；
Coal gas fast cut valve and gas regulator are closed successively first when closing fire, and nitrogen gas control valve is opened after fray-out of flame and is blown with nitrogen
Gas pipeline is swept, starts the rotation revolution of arm switch button of control cabinet, rotating arm, which returns to initial position of readiness, to be stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810093260.6A CN108060290A (en) | 2018-01-31 | 2018-01-31 | Gas toast device and its baking method below RH stoves vacuum chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810093260.6A CN108060290A (en) | 2018-01-31 | 2018-01-31 | Gas toast device and its baking method below RH stoves vacuum chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108060290A true CN108060290A (en) | 2018-05-22 |
Family
ID=62134289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810093260.6A Withdrawn CN108060290A (en) | 2018-01-31 | 2018-01-31 | Gas toast device and its baking method below RH stoves vacuum chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108060290A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670081A (en) * | 2021-07-26 | 2021-11-19 | 洛阳盛鑫工矿设备有限公司 | Safety protection system of baking oven |
| CN114517247A (en) * | 2021-12-30 | 2022-05-20 | 泰州市德力西冶金机械设备有限公司 | Heat accumulating type RH vacuum chamber baking equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07173521A (en) * | 1993-12-21 | 1995-07-11 | Nkk Corp | Rh degassing apparatus |
| CN2539063Y (en) * | 2002-05-16 | 2003-03-05 | 李志军 | Roaster for RH stove |
| CN1900327A (en) * | 2006-06-01 | 2007-01-24 | 上海宝钢工程技术有限公司 | Standby preheating device and method for molten steel refining vacuum channel |
| CN203700419U (en) * | 2013-10-14 | 2014-07-09 | 宝钢不锈钢有限公司 | Integrated standby baking device for vacuum tank dip pipes |
| CN105256105A (en) * | 2015-11-17 | 2016-01-20 | 莱芜钢铁集团有限公司 | RH vacuum refining explosion preventing device and control method thereof |
-
2018
- 2018-01-31 CN CN201810093260.6A patent/CN108060290A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07173521A (en) * | 1993-12-21 | 1995-07-11 | Nkk Corp | Rh degassing apparatus |
| CN2539063Y (en) * | 2002-05-16 | 2003-03-05 | 李志军 | Roaster for RH stove |
| CN1900327A (en) * | 2006-06-01 | 2007-01-24 | 上海宝钢工程技术有限公司 | Standby preheating device and method for molten steel refining vacuum channel |
| CN203700419U (en) * | 2013-10-14 | 2014-07-09 | 宝钢不锈钢有限公司 | Integrated standby baking device for vacuum tank dip pipes |
| CN105256105A (en) * | 2015-11-17 | 2016-01-20 | 莱芜钢铁集团有限公司 | RH vacuum refining explosion preventing device and control method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670081A (en) * | 2021-07-26 | 2021-11-19 | 洛阳盛鑫工矿设备有限公司 | Safety protection system of baking oven |
| CN114517247A (en) * | 2021-12-30 | 2022-05-20 | 泰州市德力西冶金机械设备有限公司 | Heat accumulating type RH vacuum chamber baking equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180522 |