CN201538783U - Cold air pressure equalizing valve of hot blast stove - Google Patents
Cold air pressure equalizing valve of hot blast stove Download PDFInfo
- Publication number
- CN201538783U CN201538783U CN2009200169156U CN200920016915U CN201538783U CN 201538783 U CN201538783 U CN 201538783U CN 2009200169156 U CN2009200169156 U CN 2009200169156U CN 200920016915 U CN200920016915 U CN 200920016915U CN 201538783 U CN201538783 U CN 201538783U
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- equalizing valve
- cold wind
- wind equalizing
- air pressure
- increased
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- 239000003034 coal gas Substances 0.000 abstract description 4
- 230000003203 everyday effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model discloses a hot-blast furnace cold wind equalizing valve adds two proximity switches in cold wind equalizing valve opening 1/6 and 1/3 position on the valve frame, and proximity switch and electrical control cabinet cold wind equalizing valve binding post are connected. Because the air volume can be increased or decreased according to the requirement, the air pressure fluctuation brought by undisturbed furnace change and the coal gas flow change generated by the air pressure fluctuation can be adjusted, the air volume can be increased by 500m each time of furnace change3The production can be increased by 90t every day; and 360000m of wind reduction amount caused by furnace change can be reduced every month3. The large hot blast stove saves more than 200 ten thousand yuan each year. The device has the advantages of simple structure, investment saving, good stability, strong maneuverability and no need of independent program control.
Description
Technical field
The utility model belongs to the ironmaking mechanical field, is specifically related to a kind of hotblast stove unperturbed and moves the used cold wind equalizing valve of stove.
Background technology
Changing-over stove is to realize continuing to provide heat to blast furnace, and the important prerequisite that keeps blast furnace production to carry out continually and steadily.But change stove and must bring blast wandering, the blast furnace air quantity reduces when changing stove filling wind, the about 20kPa of hot-blast pressure decline; Wind is filled after wind and is pressed liter, and blast wandering is big, changes heat size and easily causes checking.In addition, because blast wandering when changing stove, coal gas stream also changes thereupon, is unfavorable for the direct motion that blast furnace is produced.Change the stove process and be equivalent to checking, influence furnace processor.In order to change this situation, each research institution carries out relevant problem tackling key problem one after another, and successfully works out out unperturbed and move the stove program.But this program costs an arm and a leg, and occurs the blast accident of standing out easily, and the cold wind equalizing valve has only standard-sized sheet and two limit positions of complete shut-down in addition, and air quantity can't artificially be controlled, and has influenced unperturbed and has moved applying of stove technology.
Summary of the invention
Purpose of the present invention is exactly at above-mentioned defective, provides a kind of simple and practical, and good stability can effectively reduce and change blast and the fluctuation of coal gas stream that stove causes, the realization unperturbed is moved the cold wind equalizing valve of stove.
The technical solution that the utility model is taked is:
A kind of hotblast stove cold wind equalizing valve comprises pull bar, valve handle, vavle shelf and valve body, is characterized in, has additional two open sites near switch on vavle shelf, is connected with electrical control cabinet cold wind equalizing valve connection terminal near switch.
Describedly be respectively cold wind equalizing valve aperture 1/6 and 1/3 two positions near switch.
The beneficial effects of the utility model are:
Because cold wind equalizing valve aperture has been increased by 1/6 and 1/3 two position, can increase air quantity as required and reduce air quantity, thereby adjust unperturbed and move blast wandering and the consequent coal gas rheologyization that the furnace zone is come, change the stove process by Artificial Control, the realization unperturbed is moved stove, and changing stove can increase air quantity 500m at every turn
3/ min increases air quantity 60000m every day
3, day volume increase 90t; And can reduce in every month owing to change the checking amount that stove causes and reach 360000m
3For large blast furnace, hotblast stove, year save to be worth reach 200 surplus ten thousand yuan.The utility model is simple and practical, need not time variable control, less investment, instant effect, good stability and mobility strong.
Description of drawings
Accompanying drawing is a hotblast stove cold wind equalizing valve structural profile synoptic diagram.
Among the figure: valve handle 1, hydraulic stem 2, hydro-cylinder 3, vavle shelf 4, near switch 5.1, near switch 5.2, pull bar 6, valve body 7.Wherein, near switch 5.1 for be arranged at cold wind equalizing valve aperture 1/3 position near switch, near switch 5.2 for be arranged at cold wind equalizing valve aperture 1/6 position near switch.
Embodiment
By accompanying drawing as seen, the utility model comprises that mainly valve handle 1, vavle shelf 4, pull bar 6, valve body 7 and 4 are near switch.Pull bar 6 connects hydro-cylinders 3 by hydraulic stem 2, realizes the unlatching of valve handle 1 or closes.The utility model is to have set up two open sites near switch on vavle shelf 4, one be arranged at cold wind equalizing valve aperture 1/3 position near switch 5.1, another be arranged at cold wind equalizing valve aperture 1/6 position near switch 5.2.For guaranteeing the reliability and the accuracy of position control, all are connected on the electrical control cabinet cold wind equalizing valve connection terminal near switch.
Claims (2)
1. a hotblast stove cold wind equalizing valve comprises pull bar, valve handle, vavle shelf and valve body, it is characterized in that, sets up two open sites near switch on vavle shelf, is connected with electrical control cabinet cold wind equalizing valve connection terminal near switch.
2. hotblast stove cold wind equalizing valve according to claim 1 is characterized in that, describedly is respectively cold wind equalizing valve aperture 1/6 and 1/3 two positions near switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200169156U CN201538783U (en) | 2009-08-25 | 2009-08-25 | Cold air pressure equalizing valve of hot blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200169156U CN201538783U (en) | 2009-08-25 | 2009-08-25 | Cold air pressure equalizing valve of hot blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201538783U true CN201538783U (en) | 2010-08-04 |
Family
ID=42590235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200169156U Expired - Fee Related CN201538783U (en) | 2009-08-25 | 2009-08-25 | Cold air pressure equalizing valve of hot blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201538783U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114990271A (en) * | 2022-06-29 | 2022-09-02 | 马鞍山钢铁股份有限公司 | Linear adjustment method for furnace changing stress of blast furnace hot blast pipe system |
| CN115044721A (en) * | 2022-06-29 | 2022-09-13 | 马鞍山钢铁股份有限公司 | System and method for detecting stress of blast furnace hot blast pipe system and linearly controlling furnace changing stress |
| CN115198048A (en) * | 2022-06-29 | 2022-10-18 | 马鞍山钢铁股份有限公司 | Blast furnace hot air system capable of realizing furnace replacement stress monitoring |
-
2009
- 2009-08-25 CN CN2009200169156U patent/CN201538783U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114990271A (en) * | 2022-06-29 | 2022-09-02 | 马鞍山钢铁股份有限公司 | Linear adjustment method for furnace changing stress of blast furnace hot blast pipe system |
| CN115044721A (en) * | 2022-06-29 | 2022-09-13 | 马鞍山钢铁股份有限公司 | System and method for detecting stress of blast furnace hot blast pipe system and linearly controlling furnace changing stress |
| CN115198048A (en) * | 2022-06-29 | 2022-10-18 | 马鞍山钢铁股份有限公司 | Blast furnace hot air system capable of realizing furnace replacement stress monitoring |
| CN114990271B (en) * | 2022-06-29 | 2023-07-25 | 马鞍山钢铁股份有限公司 | Furnace changing stress linear adjusting method for blast furnace hot air pipe system |
| CN115044721B (en) * | 2022-06-29 | 2023-07-25 | 马鞍山钢铁股份有限公司 | Blast furnace hot air pipe system stress detection and furnace replacement stress linear control method |
| CN115198048B (en) * | 2022-06-29 | 2023-07-25 | 马鞍山钢铁股份有限公司 | Blast furnace hot air system capable of realizing furnace replacement stress monitoring |
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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: 20100804 Termination date: 20150825 |
|
| EXPY | Termination of patent right or utility model |