CN201501904U - Vacuum regulating device for vacuum refining furnace - Google Patents
Vacuum regulating device for vacuum refining furnace Download PDFInfo
- Publication number
- CN201501904U CN201501904U CN2009202084909U CN200920208490U CN201501904U CN 201501904 U CN201501904 U CN 201501904U CN 2009202084909 U CN2009202084909 U CN 2009202084909U CN 200920208490 U CN200920208490 U CN 200920208490U CN 201501904 U CN201501904 U CN 201501904U
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- vacuum
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- squirt pump
- valve
- pipe
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Abstract
The utility model discloses a vacuum regulating device for a vacuum refining furnace, which comprises a vacuum tank, a vacuum sensor, a vacuum stop valve, a five-level injection pump, a three-level condenser, an aerial fog separator, a backfilling pipe, a vacuum pipe, a stop valve, a flow regulating valve, and a PLC control and regulating operation system. The vacuum tank is connected with the vacuum pipe by a first-level injection pump. The vacuum sensor and the vacuum stop valve are connected on the vacuum pipe. The five-level injection pumps are connected serially by the vacuum pipe. One end of the backfilling pipe is communicated with atmosphere and the other end thereof is connected with the front end of a third-level injection pump. The flow regulating valve and the stop valve are connected on the backfilling pipe. The PLC control and regulating operation system is respectively connected with the vacuum sensor, the flow regulating valve and the stop valve by a data line. The vacuum regulating device can regulate the vacuum in the vacuum groove and can efficiently control the phenomena of molten steel splashing, dreg overflowing and steel overflowing and the like in the refining process.
Description
Technical field
The utility model relates to a kind of vacuum-ness regulator, relates in particular to a kind of metallurgical system vacuum refining furnace vacuum-ness regulator.
Background technology
At present, use very general at each smelter vacuum refining furnace, as the vacuum circulation degassing refining furnace, vacuum degassing furnace, vacuum-oxygen decarbonizing stove and vacuum induction furnace etc., steel quality after the vacuum-treat is significantly improved, and developed vacuum oxygen and the vacuum technology of dusting, make and developed in the technology aspect smelting suprelow carbon steel and the ultralow-sulfur steel, but no matter be the vacuum circulation degassing refining furnace, vacuum degassing furnace, vacuum-oxygen decarbonizing stove or vacuum induction furnace, the molten steel that causes in the vacuum oxygen or the process of dusting splashes, the problems such as slag and excessive steel of overflowing all are not effectively controlled, thereby influenced vacuum treated efficient, and the control molten steel splashes, excessive slag and excessive steel phenomenon mainly are exactly by control vacuum tightness.Equally, oxygen blast, dust and other refining process also need be finished under a metastable vacuum environment.The existing equipment for vacuum refining that is used for metallurgical aspect mostly is multistage large-scale vapor jet pump, and squirt pump adopts polyphone or parallel way to connect, and structure as shown in Figure 1.Comprise vacuum tank 1, vacuum transducer 2, vacuum shut off valve 3, first step squirt pump 4, second stage squirt pump 5, third stage squirt pump 6, fourth stage squirt pump 7, level V squirt pump 8, first step condenser 9, second stage condenser 10, third stage condenser 11, aerosol separator 12 and vacuum pipe 14, vacuum tank 1 is connected by vacuum pipe 14 with first step squirt pump 4, be connected to vacuum transducer 12 and vacuum shut off valve 3 on the vacuum pipe 14, the Pyatyi squirt pump is connected in series by vacuum pipe 14, be connected to first step condenser 9 between third stage squirt pump 6 and the fourth stage squirt pump 7, fourth stage squirt pump 7 comprises the squirt pump of three parallel connections, one of them squirt pump is terminal to be communicated with atmosphere, two other squirt pump end links to each other with two second stage condensers 10 respectively, two second stage condenser 10 ends are connected with two level V squirt pumps 8 respectively, level V squirt pump 8 ends link to each other with third stage condenser 11 front ends, two third stage condenser 11 ends link to each other with aerosol separator 12 respectively, and aerosol separator 12 ends are communicated with atmosphere.The shortcoming of this device is can't monitor in real time the vacuum tightness in the vacuum tank 1 in the vacuum-treat process, causes some metallurgical behaviors to realize in the vacuum range that reality requires.
The utility model content
Technical problem to be solved in the utility model provides a kind of vacuum refining furnace vacuum-ness regulator, this vacuum-ness regulator can be regulated and control the vacuum tightness in the vacuum tank, thereby suppress that molten steel splashes in the vacuum refining furnace treating processes, the generation of the phenomenons such as slag and excessive steel of overflowing, the accident that prevents takes place.
For achieving the above object, a kind of vacuum refining furnace vacuum-ness regulator described in the utility model, comprise vacuum tank, vacuum transducer, vacuum shut off valve, first step squirt pump, second stage squirt pump, third stage squirt pump, fourth stage squirt pump, the level V squirt pump, first step condenser, second stage condenser, third stage condenser, vacuum pipe, the aerosol separator, vacuum tank is connected by vacuum pipe with first step squirt pump, be connected to vacuum transducer and vacuum shut off valve on the vacuum pipe, the Pyatyi squirt pump is connected in series by vacuum pipe, the utility model also comprises PLC control and regulates operating system, flow control valve, trip valve and backfill pipeline, described backfill pipeline one end is communicated with atmosphere, the other end is connected with third stage squirt pump front end, be connected to flow control valve and trip valve on the backfill pipeline, PLC control and regulate operating system by data line respectively with vacuum transducer, flow control valve, trip valve connects.
Described backfill pipeline one termination aerosol separator end, another termination third stage squirt pump front end.
The utility model is simple to operate, control flexibly, can carry out the adjusting of certain limit to the vacuum tightness in the vacuum tank, can make oxygen blast, the operation of dusting remains under the metastable vacuum environment and carries out, the molten steel that produces in the refining process splash, overflow slag and excessive steel phenomenon is effectively controlled, effectively prevents the generation of metallurgical accident.
Description of drawings
Fig. 1 forms synoptic diagram for vacuum jet package (devices);
Fig. 2 is vacuum tightness air backfill control device embodiment one synoptic diagram;
Fig. 3 is vacuum tightness waste gas backfill control device embodiment two synoptic diagram.
Among the figure: 1, vacuum tank, 2, vacuum transducer, 3, vacuum shut off valve, 4, first step squirt pump, 5, second stage squirt pump, 6, third stage squirt pump, 7, fourth stage squirt pump, 8, the level V squirt pump, 9, first step condenser, 10, second stage condenser, 11, third stage condenser, 12, the aerosol separator, 13, backfill pipeline, 14, vacuum pipe, 15, trip valve, 16, flow control valve, 17, PLC control and regulate operating system, symbol among the figure:
Steam,
Water coolant,
Waste gas.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Embodiment 1:
Referring to shown in Figure 2, a kind of vacuum refining furnace vacuum-ness regulator, comprise vacuum tank 1, vacuum transducer 2, vacuum shut off valve 3, first step squirt pump 4, second stage squirt pump 5, third stage squirt pump 6, fourth stage squirt pump 7, level V squirt pump 8, first step condenser 9, second stage condenser 10, third stage condenser 11, aerosol separator 12, backfill pipeline 13, vacuum pipe 14, trip valve 15, flow control valve 16, PLC control and adjusting operating system 17, vacuum tank 1 is connected by vacuum pipe 14 with first step squirt pump 4, be connected to vacuum transducer 2 and vacuum shut off valve 3 on the vacuum pipe 14, the Pyatyi squirt pump is connected in series by vacuum pipe 14, second stage squirt pump 5 links to each other with third stage squirt pump 6, be connected to first step condenser 9 between third stage squirt pump 6 and the fourth stage squirt pump 7, fourth stage squirt pump 7 comprises the squirt pump of three parallel connections, one of them squirt pump is terminal to be communicated with atmosphere, two other squirt pump end links to each other with two second stage condensers 10 respectively, two second stage condenser 10 ends are connected with two level V squirt pumps 8 respectively, level V squirt pump 8 ends link to each other with third stage condenser 11 front ends, two third stage condenser 11 ends link to each other with aerosol separator 12 respectively, aerosol separator 12 ends are communicated with atmosphere, described backfill pipeline 13 1 ends are communicated with atmosphere, the other end is connected with third stage squirt pump 6 front ends, be connected to flow control valve 16 and trip valve 15 on the backfill pipeline 13, PLC control and regulate operating system 17 by data line respectively with vacuum transducer 2, flow control valve 16, trip valve 15 connects.
Vacuum-treat begins, vacuum shut off valve 3 is opened, the Pyatyi ejector priming, vacuum tank 1 begins to vacuumize, according to the smelting technology demand, set needed vacuum tightness in PLC control and adjusting operating system 17, vacuum tightness in vacuum tank 1 reaches set(ting)value, begin the oxygen blast operation this moment, vacuum tightness in the vacuum tank 1 will be higher than set(ting)value thereupon, trip valve 15 is opened, utilize the pressure reduction between third stage squirt pump 6 and the atmosphere, air by backfill pipeline 13 to 6 backfills of third stage squirt pump, flow control valve 16 carries out the air backfill according to the vacuum tightness set(ting)value, thereby the vacuum tightness in the control vacuum tank 1 remains on fluctuation in certain scope, the utility model is 2.2Kpa～100Kpa to the vacuum tightness regulation range in the vacuum tank, vacuum tightness in vacuum tank 1 is higher than PLC control and regulates operating system 17 set(ting)values, flow control valve 16 apertures decrease, reduce the backfill air flow quantity, improve pressure reduction between aerosol separator 12 and the vacuum tank 1 with this, 1 vacuum tightness will drop to set(ting)value thereupon in the vacuum tank; When vacuum tank 1 vacuum tightness is lower than set(ting)value, flow control valve 16 apertures improve thereupon, increase the backfill gas flow, reduce pressure reduction between aerosol separator 12 and the vacuum tank 1 with this, the waste gas of smelting generation in the vacuum tank 1 is not taken away, vacuum tightness in the vacuum tank 1 will be brought up to set(ting)value, thereby satisfy the requirement of smelting technology.
Embodiment 2:
Vacuum-treat begins, vacuum shut off valve 3 is opened, the Pyatyi ejector priming, vacuum tank 1 begins to vacuumize, according to the smelting technology demand, set needed vacuum tightness in PLC control and adjusting operating system 17, vacuum tightness in vacuum tank 1 reaches set(ting)value, begin the oxygen blast operation this moment, vacuum tightness in the vacuum tank 1 will be higher than set(ting)value thereupon, trip valve 15 is opened, utilize the pressure reduction between third stage squirt pump 6 and the aerosol separator 12, the waste gas that produces in the vacuum-treat process by backfill pipeline 13 to 6 backfills of third stage squirt pump, flow control valve 16 carries out the waste gas backfill according to the vacuum tightness set(ting)value, pumping process will form a circulation between third stage injector 6 and aerosol separator 12, aerosol separator 12 end pressure will keep balance with vacuum tank 1 internal pressure, thereby the vacuum tightness in the control vacuum tank 1 remains on fluctuation in certain scope, the utility model is 2.2Kpa～100Kpa to the vacuum tightness regulation range in the vacuum tank, vacuum tightness in vacuum tank 1 is higher than PLC control and regulates operating system 17 set(ting)values, flow control valve 16 apertures decrease, reduce the backfill exhaust gas flow, improve pressure reduction between aerosol separator 12 and the vacuum tank 1 with this, 1 vacuum tightness will drop to set(ting)value thereupon in the vacuum tank; When vacuum tank 1 vacuum tightness is lower than set(ting)value, flow control valve 16 apertures improve thereupon, increase the backfill gas flow, reduce pressure reduction between aerosol separator 12 and the vacuum tank 1 with this, the waste gas of smelting generation in the vacuum tank 1 is not taken away, vacuum tightness in the vacuum tank 1 will be brought up to set(ting)value, thereby satisfy the requirement of smelting technology.
Claims (2)
1. vacuum refining furnace vacuum-ness regulator, comprise vacuum tank, vacuum transducer, vacuum shut off valve, first step squirt pump, second stage squirt pump, third stage squirt pump, fourth stage squirt pump, the level V squirt pump, first step condenser, second stage condenser, third stage condenser, vacuum pipe and aerosol separator, vacuum tank is connected by vacuum pipe with first step squirt pump, be connected to vacuum transducer and vacuum shut off valve on the vacuum pipe, the Pyatyi squirt pump is connected in series by vacuum pipe, it is characterized in that: described vacuum-ness regulator also comprises PLC control and regulates operating system, flow control valve, trip valve and backfill pipeline, described backfill pipeline one end is communicated with atmosphere, the other end is connected with third stage squirt pump front end, be connected to flow control valve and trip valve on the backfill pipeline, PLC control and regulate operating system by data line respectively with vacuum transducer, flow control valve, trip valve connects.
2. a kind of vacuum refining furnace vacuum-ness regulator according to claim 1 is characterized in that: described backfill pipeline one termination aerosol separator end, another termination third stage squirt pump front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202084909U CN201501904U (en) | 2009-08-26 | 2009-08-26 | Vacuum regulating device for vacuum refining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202084909U CN201501904U (en) | 2009-08-26 | 2009-08-26 | Vacuum regulating device for vacuum refining furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201501904U true CN201501904U (en) | 2010-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202084909U Expired - Fee Related CN201501904U (en) | 2009-08-26 | 2009-08-26 | Vacuum regulating device for vacuum refining furnace |
Country Status (1)
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| CN (1) | CN201501904U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154535A (en) * | 2011-03-28 | 2011-08-17 | 中国重型机械研究院有限公司 | Vacuum degree gas saving regulation system |
| CN102155439A (en) * | 2011-03-28 | 2011-08-17 | 中国重型机械研究院有限公司 | Vacuum degree regulating system for steam injection pump |
| CN102419109A (en) * | 2011-11-09 | 2012-04-18 | 中国重型机械研究院有限公司 | Contact type high-efficiency cooling and dedusting device and method |
| CN102732684A (en) * | 2012-06-12 | 2012-10-17 | 河北钢铁股份有限公司邯郸分公司 | On-line rapid RH sealing airbag replacing method |
| CN102796848A (en) * | 2012-07-31 | 2012-11-28 | 莱芜钢铁集团有限公司 | Valveless control loop for full-steam vacuum distillation (VD) vacuum refining furnace |
| CN103305662A (en) * | 2013-05-31 | 2013-09-18 | 中冶南方工程技术有限公司 | Vacuum system for vacuum melting |
| CN103820604A (en) * | 2014-01-27 | 2014-05-28 | 上海零澜机械科技有限公司 | Vacuum pumping system for vacuum degassing smelting furnaces |
-
2009
- 2009-08-26 CN CN2009202084909U patent/CN201501904U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154535A (en) * | 2011-03-28 | 2011-08-17 | 中国重型机械研究院有限公司 | Vacuum degree gas saving regulation system |
| CN102155439A (en) * | 2011-03-28 | 2011-08-17 | 中国重型机械研究院有限公司 | Vacuum degree regulating system for steam injection pump |
| CN102154535B (en) * | 2011-03-28 | 2012-09-05 | 中国重型机械研究院有限公司 | Vacuum degree gas saving regulation system |
| CN102155439B (en) * | 2011-03-28 | 2012-12-19 | 中国重型机械研究院有限公司 | Vacuum degree regulating system for steam injection pump |
| CN102419109A (en) * | 2011-11-09 | 2012-04-18 | 中国重型机械研究院有限公司 | Contact type high-efficiency cooling and dedusting device and method |
| CN102732684A (en) * | 2012-06-12 | 2012-10-17 | 河北钢铁股份有限公司邯郸分公司 | On-line rapid RH sealing airbag replacing method |
| CN102732684B (en) * | 2012-06-12 | 2014-05-28 | 河北钢铁股份有限公司邯郸分公司 | On-line rapid RH sealing airbag replacing method |
| CN102796848A (en) * | 2012-07-31 | 2012-11-28 | 莱芜钢铁集团有限公司 | Valveless control loop for full-steam vacuum distillation (VD) vacuum refining furnace |
| CN103305662A (en) * | 2013-05-31 | 2013-09-18 | 中冶南方工程技术有限公司 | Vacuum system for vacuum melting |
| CN103820604A (en) * | 2014-01-27 | 2014-05-28 | 上海零澜机械科技有限公司 | Vacuum pumping system for vacuum degassing smelting furnaces |
| CN103820604B (en) * | 2014-01-27 | 2018-08-17 | 上海伊莱茨真空技术有限公司 | A kind of pumped vacuum systems for vacuum outgas smelting furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20140826 |
|
| EXPY | Termination of patent right or utility model |