CN202246726U - Hot-blast air energy-saving air supply device for blast furnaces - Google Patents
Hot-blast air energy-saving air supply device for blast furnaces Download PDFInfo
- Publication number
- CN202246726U CN202246726U CN2011203826937U CN201120382693U CN202246726U CN 202246726 U CN202246726 U CN 202246726U CN 2011203826937 U CN2011203826937 U CN 2011203826937U CN 201120382693 U CN201120382693 U CN 201120382693U CN 202246726 U CN202246726 U CN 202246726U
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- blast
- air
- hot
- blower
- supply device
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Abstract
The utility model provides a hot-blast air energy-saving air supply device for blast furnaces. The hot-blast air energy-saving air supply device comprises an air blower and hot-blast air pipes which are communicated with the air blower and blast orifices of the blast furnaces, and is characterized in that: a first hot-blast air horizontal pipe and a second hot-blast air horizontal pipe are arranged between the two hot-blast air pipes, wherein a control valve is arranged on the first hot-blast air horizontal pipe; control valves are arranged at two ends of the second hot-blast air horizontal pipe; and a tee joint is arranged between the two control valves, and the third end of the tee joint is connected with a standby air blower. According to the hot-blast air energy-saving air supply device, when the trip-out failure of a certain blast-furnace blower occurs, and the standby air blower is not started completely, the air blower which runs in the other blast-furnace air supply unit is utilized fully, and air is supplied to the two blast furnaces simultaneously; and after the standby air blower is started completely, the air is supplied by the standby air blower, and a quickly-loaded valve on the first hot-blast air horizontal pipe is turned off simultaneously, so that the smelting of the two blast furnaces are not influenced by the failure or draught distribution of the air blower, and thus accidents such as slag bonding of the blast furnaces due to temperature drop are avoided, and the investment is reduced substantially.
Description
Technical field
The utility model relates to a kind of air supply device, and the energy-conservation air supply device of especially a kind of blast-furnace hot-air belongs to the blast furnace ironmaking technical field of auxiliary facilities.
Background technology
Need blast high-temperature hot-air in the blast furnace ironmaking process,, make the iron oxide reduction in the iron ore become metallic iron to promote the coke burning in the furnace charge.Along with progress of science and technology; Make joint efforts down in vast scientific research and engineering technical personnel; Constantly break through the key technology of many blast furnace air feeds, the high-temperature technology of hot blast for example, air feed technology; Air current flow and distribution technique or the like maximize blast furnace, high wind-warm syndrome technology is succeeded application.But the present air feed that iron-smelting blast furnace adopted is the unit air feed system, promptly directly blast furnace is carried out air feed by the separate unit gas blower, and in order to guarantee carrying out smoothly of blast-furnace smelting, needs every blast furnace to be equipped with two gas blowers, an operation, and another is subsequent use.During former thereby tripping operation, start stand-by fan immediately when the gas blower failover etc. of operation to the blast furnace air feed.But because the blast furnace blowing engine load is bigger, start time is longer, therefore, can not in time to blast furnace hot blast be provided, thereby causes blast furnace cooling slagging scorification easily, and influences the blast furnace safe operation.In addition, every blast furnace is equipped with two gas blowers, will increase investment.Therefore, be necessary prior art is improved.
Summary of the invention
For continuously hot blast being provided to blast furnace, practice thrift investment simultaneously, the usefulness of performance gas blower, the utility model provides a kind of blast-furnace hot-air energy-conservation air supply device.
The utility model provides the energy-conservation air supply device of a kind of like this blast-furnace hot-air, comprises gas blower, and the heating duct that is communicated with gas blower and blast furnace blast mouth; It is characterized in that being provided with between the heating duct in twos first, second hot blast transverse tube, wherein, the first hot blast transverse tube is provided with valve; The two ends of the second hot blast transverse tube are respectively equipped with valve, are provided with threeway between two valves, and the 3rd end of this threeway links to each other with emergency blower; So that wherein a gas blower breaks down and emergency blower does not start when complete as yet; Open the fast valve that carries on the first hot blast transverse tube, to two blast furnaces hot blast be provided simultaneously by another gas blower, treat that emergency blower starts fully after; Open on the second hot blast transverse tube corresponding valve and change, close the fast valve that carries on the first hot blast transverse tube simultaneously by the emergency blower hot wind supply.
Valve on the said first hot blast transverse tube is the fast valve that carries, so that fast quick-opening valve and to two blast furnaces air feeds simultaneously, and fast quick-closing valve and to a blast furnace air feed.
The utility model compared with prior art has advantage and effect: adopt such scheme, can be at a certain blast furnace blowing engine fault trip and emergency blower does not start when complete as yet, and make full use of the gas blower that is moving in another blast furnace air feed unit; To two blast furnace air feeds, after emergency blower starts fully, promptly change simultaneously by the emergency blower air feed; Close the fast valve that carries on the first hot blast transverse tube simultaneously; The influence that makes two blast-furnace smeltinges all can not receive blower fault or gas blower to divide wind to keep normal smelting temperature, is avoided Yin Wendu decline and is caused the blast furnace slagging scorification; The perhaps generation of other accidents; Can reduce simultaneously gas blower investment and running cost significantly, and can reduce floor space, guarantee the stable of blast-furnace hot-air temperature and blast; Reduce and smelt fluctuation, this will have important practical significance to the energy-saving and cost-reducing of blast-furnace smelting.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be further described.
The energy-conservation air supply device of the blast-furnace hot-air that the utility model provides comprises gas blower 1 and 11, is communicated with the heating duct 2 of gas blower 1 and blast furnace 3 blast orifices; And the heating duct 10 that is communicated with gas blower 11 and blast furnace 6 blast orifices, wherein be provided with the first hot blast transverse tube 4 and the second hot blast transverse tube 8 between the heating duct 2 and 10, wherein in twos; The first hot blast transverse tube 4 is provided with valve 5, and this valve 5 is the fast valve that carries, and the two ends of the second hot blast transverse tube 8 are respectively equipped with valve 9 and 13; Be provided with threeway 7 between two valves 9 and 13, the 3rd end of this threeway 7 links to each other with emergency blower 12, breaks down and emergency blower 12 does not start when complete as yet with convenient gas blower 1; Open the fast valve 5 that carries on the first hot blast transverse tube 4; To two blast furnaces 3 and 6 hot blast is provided simultaneously by gas blower 11, treat that emergency blower 12 starts fully after, open valve 13 corresponding on the second hot blast transverse tube 8 and change by emergency blower 12 to blast furnace 3 hot wind supplies; Close the fast valve 5 that carries on the first hot blast transverse tube 4 simultaneously, make 11 of gas blowers to blast furnace 6 air feeds.Otherwise when gas blower 11 faults, and emergency blower 12 does not start when complete as yet; Open the fast valve 5 that carries on the first hot blast transverse tube 4; To two blast furnaces 3 and 6 hot blast is provided simultaneously by gas blower 1, treat that emergency blower 12 starts fully after, open valve 9 corresponding on the second hot blast transverse tube 8 and change by emergency blower 12 to blast furnace 6 hot wind supplies; Close the fast valve 5 that carries on the first hot blast transverse tube 4 simultaneously, make 1 of gas blower to blast furnace 3 air feeds.
Claims (2)
1. the energy-conservation air supply device of blast-furnace hot-air comprises gas blower, and the heating duct that is communicated with gas blower and blast furnace blast mouth; It is characterized in that being provided with between the heating duct in twos first, second hot blast transverse tube; Wherein, the first hot blast transverse tube is provided with valve, and the two ends of the second hot blast transverse tube are respectively equipped with valve; Be provided with threeway between two valves, the 3rd end of this threeway links to each other with emergency blower.
2. the energy-conservation air supply device of blast-furnace hot-air according to claim 1 is characterized in that the valve on the said first hot blast transverse tube is the fast valve that carries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203826937U CN202246726U (en) | 2011-10-10 | 2011-10-10 | Hot-blast air energy-saving air supply device for blast furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203826937U CN202246726U (en) | 2011-10-10 | 2011-10-10 | Hot-blast air energy-saving air supply device for blast furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202246726U true CN202246726U (en) | 2012-05-30 |
Family
ID=46107997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203826937U Expired - Fee Related CN202246726U (en) | 2011-10-10 | 2011-10-10 | Hot-blast air energy-saving air supply device for blast furnaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202246726U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152617A (en) * | 2014-09-03 | 2014-11-19 | 四川德胜集团钒钛有限公司 | Blast furnace air supply device and blast furnace |
| CN109487024A (en) * | 2018-12-25 | 2019-03-19 | 云南玉溪仙福钢铁（集团）有限公司 | Blast furnace gas and main air hose lead to net system |
| CN110686245A (en) * | 2019-10-10 | 2020-01-14 | 北京航空航天大学 | Long-life high temperature plasma torch medical waste innocent treatment system |
-
2011
- 2011-10-10 CN CN2011203826937U patent/CN202246726U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152617A (en) * | 2014-09-03 | 2014-11-19 | 四川德胜集团钒钛有限公司 | Blast furnace air supply device and blast furnace |
| CN109487024A (en) * | 2018-12-25 | 2019-03-19 | 云南玉溪仙福钢铁（集团）有限公司 | Blast furnace gas and main air hose lead to net system |
| CN109487024B (en) * | 2018-12-25 | 2024-02-09 | 云南玉溪仙福钢铁（集团）有限公司 | Blast furnace gas and main air pipe net system |
| CN110686245A (en) * | 2019-10-10 | 2020-01-14 | 北京航空航天大学 | Long-life high temperature plasma torch medical waste innocent treatment system |
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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: 20120530 Termination date: 20141010 |
|
| EXPY | Termination of patent right or utility model |