CN201990692U - Automatic air dispensation system of multiple blast furnace blowers - Google Patents
Automatic air dispensation system of multiple blast furnace blowers Download PDFInfo
- Publication number
- CN201990692U CN201990692U CN2011200464510U CN201120046451U CN201990692U CN 201990692 U CN201990692 U CN 201990692U CN 2011200464510 U CN2011200464510 U CN 2011200464510U CN 201120046451 U CN201120046451 U CN 201120046451U CN 201990692 U CN201990692 U CN 201990692U
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- air
- blowers
- blast furnace
- dispensation
- blower
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- Manufacture Of Iron (AREA)
Abstract
The utility model discloses an automatic air dispensation system of multiple blast furnace blowers, which comprises more than three blast furnaces and more than three blowers, wherein an air inlet of each blast furnace is connected with an air supply main pipe; the quantity of the blowers is corresponding to the quantity of the blast furnaces; the blowers are communicated with the corresponding air supply main pipes through blowing-in valves; an air dispensation valve bank is arranged between any two air supply main pipes; the air dispensation valve bank comprises two normal open valves and one quick open regulating valve; the blowers comprises main dispensation blowers and standby dispensation blowers; and the air dispensation valve bank is connected with a controller. According to the air dispensation system disclosed by the utility model, when the blower of one blast furnace malfunctions, the main dispensation blowers or the standby dispensation blowers are started to supply air to the malfunctioning blower, and constant air volume or constant air pressure operation is conducted in an aided manner through the regulating valve, so the accident occurring frequency caused by sudden supply suspension of cold air can be effectively lowered, the influence on the normal operation of the blast furnaces, which is caused when malfunction occurs, can be reduced, the service lives of the blast furnaces can be prolonged, and the requirements of a production technology can be well satisfied.
Description
Technical field
The utility model relates to the steelmaking furnace air-blast system, particularly the automatic air dispensation system of many gas blowers of steelmaking furnace.
Background technology
In the blast-furnace smelting production process, the cold wind that comes out from blast furnace blowing engine enters blast furnace by hotblast stove, blast-furnace tuyere, for smelting provides combustion air and supports furnace charge.If cold wind suddenly disappears, the blast furnace pressure inside will cause iron, furnace charge to pour in down a chimney even stop up the air port, the air port that must stopping production more renews.So not only cause equipment loss, and can have a strong impact on production because of the air port replacing.Simultaneously, this accident has a strong impact on the working of a furnace, shortens blast furnace work-ing life.With a volume 2500m
3, coefficient is that 2.3 blast furnace is an example, normally tap a blast furnace every day about more than 6000 tons, in case " air port filling slag " accident occurs, change by air-supply arrangements such as the air port of filling slag, airducts and need damping down 8-16 hour at least, then, through one to three day furnace condition recovery, blast furnace just can return to normal production, like this, the guestimate single irritates that the slag accident causes directly and indirect economic loss can be up to millions of units.
The utility model content
Technical problem to be solved in the utility model provides the automatic air dispensation system of many gas blowers of a kind of blast furnace, each gas blower links to each other by the female pipe of a plurality of air-supply valves and each blast furnace air feed in the air dispensation system, when the gas blower of a blast furnace breaks down therein, the blower fan that adopts works better is to its air feed, this system can effectively reduce the accident occurrence frequency that causes because of the unexpected cut-off of cold wind, prolong blast furnace work-ing life, satisfy manufacturing technique requirent well.
For solving the problems of the technologies described above, technical solution adopted in the utility model is, the automatic air dispensation system of many gas blowers of a kind of blast furnace, comprise: the blast furnace more than three, each blast furnace air intake vent connects the female pipe of an air feed, gas blower more than three, the quantity of gas blower is corresponding with the blast furnace number, and described gas blower is communicated with by the female pipe of air-supply valve and each air feed; Respectively be provided with wind turning valve group between the female pipe of any two air feeds.
Wherein, described wind turning valve group comprises that two normally open valves and one drive variable valve soon.Comprise main dialing drum blower fan and standby dialing drum blower fan in the described gas blower.Described wind turning valve group connects a controller.
The beneficial effect that the utility model can reach is, one of them blast furnace blowing engine trip signal takes place, native system can be opened the wind turning valve of the optimum blower fan of operating mode in other works better blower fan fast to predetermined angle, to this blast furnace air feed, ensure that more effectively fault gas blower blast furnace do not irritate slag, be aided with the control of level pressure power or constant flow after the wind turning simultaneously, reduce influence as far as possible being produced by the wind turning blast furnace, reduced accident rate, the steadily normal operation of assurance system.
Description of drawings
Fig. 1 is the automatic air dispensation system structural representations of many gas blowers of the utility model blast furnace.
Embodiment
Relevant detailed description of the present utility model and technology contents will cooperate graphic being described as follows.
Fig. 1 is the automatic air dispensation system structural representations of many gas blowers of the utility model blast furnace.Comprise four blast furnace B1-B4 in this system, each blast furnace is connected with the female pipe of air feed P1-P4 respectively.This system also comprises gas blower F1-F4, and each gas blower is communicated with the female pipe of each air feed respectively by snorting valve 5.Wherein, between the female pipe of any two air feeds, respectively be provided with wind turning valve group, be respectively V12, V13, V14 as the wind turning valve group between air feed female pipe P1 and P2, P3, the P4.Wind turning valve group is that two normally open valves and one drive variable valve soon and forms.Described wind turning valve group is connected with a controller.
In normally air-supply process of gas blower,, select optimum two gas blowers such as F1, F2 to be respectively main dialing drum blower fan and standby dialing drum blower fan according to each blower fan real-time working condition.All wind turning valve groups on the female pipe of the corresponding air feed of two gas blowers, its normally open valve all is in open mode, and wind turning valve group is driven variable valve soon and is in closing condition.Cause corresponding blast furnace air feed to have no progeny suddenly when non-main dialing drum fan trouble occurring, wind turning valve group emergency action between main dialing drum blower fan female pipe of corresponding air feed blast furnace and the female pipe of disconnected wind blast furnace, quick-opening valve will be opened into predetermined aperture rapidly, and change over to rapidly and decide air quantity or decide blast operation, finish the wind turning operation.If main dialing drum fan trouble is shut down, then finish the wind turning of main dialing drum blower fan is operated by standby dialing drum blower fan.So, the wind turning time is only depended on the opening time of quick-opening valve.Therefore, can guarantee that the wind turning time satisfies production requirement by valve selection.More than action is controlled by controller.
This wind turning Controlling System can detect demonstration respectively the blow blast and the flow of female pipe and the state of each valve.In case the gas blower trip signal takes place, automatically under the situation that the wind turning condition satisfies, chain wind turning variable valve open to automatically predetermined angle (by program according to dialing drum blower fan group combination and at that time condition calculating draw) after, carry out level pressure power or constant flow and regulate control, simultaneously with got in touch by the dialing drum blower fan, carry out corresponding operating.It is more timely than manual operation that the wind turning valve is opened the time like this, ensures that more effectively fault gas blower blast furnace do not irritate slag, is aided with the control of level pressure power or constant flow after the wind turning simultaneously, reduces the influence to being produced by the wind turning blast furnace as far as possible.
Consider the existing big blast furnace of most large-scale metallurgical enterprises, big gas blower; the practical situation that small furnace, small blower are also arranged; by to main dialing drum blower fan and standby dialing drum selection of fan; can guarantee when certain gas blower because after the catastrophic failure shutdown; only have and just can transfer to some air quantity by the blast furnace behind disorderly closedown, the unlikely major accident that causes the air port to irritate slag with the limit production of keeping this blast furnace to the big gas blower of big blast furnace air feed.
Claims (4)
1. the automatic air dispensation system of many gas blowers of a blast furnace comprises:
Blast furnace more than three, each blast furnace air intake vent connect the female pipe of an air feed,
Gas blower more than three, the quantity of gas blower is corresponding with the blast furnace number, and described gas blower is communicated with by the female pipe of air-supply valve and each air feed;
It is characterized in that,
Respectively be provided with wind turning valve group between the female pipe of any two air feeds.
2. the automatic air dispensation system of many gas blowers of blast furnace according to claim 1 is characterized in that, described wind turning valve group comprises that two normally open valves and one drive variable valve soon.
3. the automatic air dispensation system of many gas blowers of blast furnace according to claim 1 is characterized in that, comprises main dialing drum blower fan and standby dialing drum blower fan in the described gas blower.
4. according to the automatic air dispensation system of many gas blowers of the described blast furnace of claim 1, it is characterized in that described wind turning valve group connects a controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200464510U CN201990692U (en) | 2011-02-24 | 2011-02-24 | Automatic air dispensation system of multiple blast furnace blowers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200464510U CN201990692U (en) | 2011-02-24 | 2011-02-24 | Automatic air dispensation system of multiple blast furnace blowers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201990692U true CN201990692U (en) | 2011-09-28 |
Family
ID=44667186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200464510U Expired - Fee Related CN201990692U (en) | 2011-02-24 | 2011-02-24 | Automatic air dispensation system of multiple blast furnace blowers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201990692U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337368A (en) * | 2011-10-21 | 2012-02-01 | 中冶南方工程技术有限公司 | Air dispensation control systems for air blowing systems of blast furnaces |
| CN103243191A (en) * | 2013-05-24 | 2013-08-14 | 重庆钢铁(集团)有限责任公司 | Air dispensation safety control method |
| CN104561423A (en) * | 2014-12-19 | 2015-04-29 | 鞍钢集团信息产业有限公司 | Redundant air adjusting system |
| CN105420435A (en) * | 2015-12-18 | 2016-03-23 | 成都成发科能动力工程有限公司 | Automatic blast furnace air adjusting system and air adjusting method for metallurgic industry |
| CN110527760A (en) * | 2019-09-04 | 2019-12-03 | 北京京诚科林环保科技有限公司 | Blast furnace fan system and blast furnace air supply method |
-
2011
- 2011-02-24 CN CN2011200464510U patent/CN201990692U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337368A (en) * | 2011-10-21 | 2012-02-01 | 中冶南方工程技术有限公司 | Air dispensation control systems for air blowing systems of blast furnaces |
| CN103243191A (en) * | 2013-05-24 | 2013-08-14 | 重庆钢铁(集团)有限责任公司 | Air dispensation safety control method |
| CN104561423A (en) * | 2014-12-19 | 2015-04-29 | 鞍钢集团信息产业有限公司 | Redundant air adjusting system |
| CN104561423B (en) * | 2014-12-19 | 2016-08-17 | 鞍钢集团信息产业有限公司 | A kind of redundancy air dispensation system |
| CN105420435A (en) * | 2015-12-18 | 2016-03-23 | 成都成发科能动力工程有限公司 | Automatic blast furnace air adjusting system and air adjusting method for metallurgic industry |
| CN110527760A (en) * | 2019-09-04 | 2019-12-03 | 北京京诚科林环保科技有限公司 | Blast furnace fan system and blast furnace air supply method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20140224 |