CN202201913U - Air volume coadjutant security slag-pouring preventing device for a plurality of blast furnaces - Google Patents
Air volume coadjutant security slag-pouring preventing device for a plurality of blast furnaces Download PDFInfo
- Publication number
- CN202201913U CN202201913U CN2011202800728U CN201120280072U CN202201913U CN 202201913 U CN202201913 U CN 202201913U CN 2011202800728 U CN2011202800728 U CN 2011202800728U CN 201120280072 U CN201120280072 U CN 201120280072U CN 202201913 U CN202201913 U CN 202201913U
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- blast furnace
- bypass
- feed pipe
- air feed
- air
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Blast Furnaces (AREA)
Abstract
The utility model provides an air volume coadjutant security slag-pouring preventing device for a plurality of blast furnaces. The air volume coadjutant security slag-pouring preventing device comprises a first blast furnace, a second blast furnace and at least one third blast furnace, wherein the first blast surface is connected with a first air supply pipe; the first air supply pipe is connected with a first air blower; a first bypass is arranged on the first air supply pipe; the second blast furnace is connected with a second air supply pipe; the second air supply pipe is connected with a second air blower; a second bypass is arranged on the second air supply pipe; a first quick switch valve is arranged on the second bypass; the third blast furnace is connected with the third air supply pipe; the third air supply pipe is connected with the third air blower; a third bypass is arranged on the third air supply pipe; a second quick switch valve is arranged on the third bypass; the first bypass, the second bypass and the third bypass are communicated with a pressure balance pipe; and a pressure sensor is arranged on the third bypass. The air supply pipeline of each blast furnace is communicated with each other, when the air blower for any blast furnace breaks down, the other air blowers supply security air to the breakdown blast furnace, so that the blast furnace can continuously operate normally, thus a slag-pouring accident is avoided.
Description
Technical field
The utility model relates to the anti-slag equipment of irritating of a kind of blast furnace security personnel, and specifically a kind of many blast furnace air quantity are helped each other to ensure public security and prevented irritating the slag device.
Background technology
Present most of iron and steel enterprises blast furnace security personnel wind system all adopts the mode of independent air feed; Interconnecting piping is not set between each blast furnace, when the blower fan of a blast furnace breaks down, can only shuts down maintenance or start stand-by fan temporarily; Can't utilize other blower fan that the fault blast furnace is supplied with security personnel's wind; In case therefore blower fan breaks down and can have a strong impact on production schedule,, also can cause blast furnace and irritate the slag accident if in time do not handle.
The utility model content
The purpose of the utility model provides a kind of many blast furnace air quantity anti-slag device of irritating of security personnel of helping each other; It is interconnected the air supply line of each blast furnace; When the blower fan of any blast furnace breaks down; All can supply with security personnel's wind to the fault blast furnace, guarantee that this blast furnace can continue to run well, avoid occurring irritating the slag accident by other blower fan.
The utility model is realized through following technical scheme: comprise first blast furnace, second blast furnace and at least one the 3rd blast furnace, first blast furnace and the first air feed pipe coupling for realizing above-mentioned purpose; The first air feed pipe is connected with first blower fan, on the first air feed pipe first bypass is set, second blast furnace and the second air feed pipe coupling; The second air feed pipe is connected with second blower fan, on the second air feed pipe second bypass is set, and first acceleration switching valve is installed in second bypass; The 3rd blast furnace and the 3rd air feed pipe coupling; The 3rd air feed Guan Yudi three blower fans connect, and on the 3rd air feed pipe the 3rd bypass are set, and second acceleration switching valve is installed in the 3rd bypass; First bypass, second bypass and the 3rd bypass all are communicated with balance tube, setting pressure transmitter in the 3rd bypass.The first air feed pipe is installed first vacuum breaker near an end of first blower fan, and the second air feed pipe is installed second vacuum breaker near an end of second blower fan, and the 3rd air feed pipe is installed the 3rd vacuum breaker near an end of the 3rd blower fan.
The advantage of the utility model is: when the blower fan of any blast furnace breaks down, all can supply with security personnel's wind to the fault blast furnace by other blower fan, guarantee that this blast furnace can continue to run well, avoid occurring irritating the slag accident; When blower fan broke down, security personnel's wind can not recharge from blower fan etc.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Described many blast furnace air quantity of the utility model anti-slag device of irritating of security personnel of helping each other comprises that first blast furnace 1, second blast furnace 2 and at least one the 3rd blast furnace 3, the first blast furnace 1 are connected with the first air feed pipe 4; The first air feed pipe 4 is connected with first blower fan 5, first bypass, 6, the second blast furnaces 2 is set on the first air feed pipe 4 is connected with the second air feed pipe 8; The second air feed pipe 8 is connected with second blower fan 9, is provided with on the second air feed pipe 8 first acceleration switching valve 14 is installed in second bypass, 10, the second bypasses 10; The 3rd blast furnace 3 is connected with the 3rd air feed pipe 11; The 3rd air feed pipe 11 is connected with the 3rd blower fan 12, is provided with on the 3rd air feed pipe 11 second acceleration switching valve 15 is installed in the 3rd bypass 13, the three bypasses 13; First bypass 6, second bypass 10 and the 3rd bypass 13 all are communicated with setting pressure transmitter 16 in the 3rd bypass 13 with balance tube 7.During normal the operation, first acceleration switching valve 14 is in normally open, and second acceleration switching valve 15 is in normally off, and second blower fan 9 is when supplying with security personnel's wind to second blast furnace, and pressurising in balance tube 7 is risen balance tube 7 interior gaseous tensions; When first blower fan 5 broke down, the first air feed pipe, 4 internal pressures descended, because balance tube 7 communicates with the first air feed pipe 4 through first bypass 6; Therefore the pressure in the balance tube 7 also descends thereupon, and the pressure transmitter 16 in the 3rd bypass 13 sends open command to second acceleration switching valve 15 after detecting the pressure decline of balance tube 7; Second acceleration switching valve 15 is opened; Make the 3rd air feed pipe 11 and balance tube 7 conductings, balance tube 7 all is communicated with the first air feed pipe 4, the second air feed pipe 8 and the 3rd air feed pipe 11, makes second blower fan 9 and the 3rd blower fan 12 simultaneously to first blast furnace 1, second blast furnace 2 and 3 supplies of the 3rd blast furnace wind of ensuring public security; Can overhaul this moment to first blower fan 5 that breaks down; Need not first blast furnace 1 be shut down, guarantee that each blast furnace all can run well, the slag accident can not occur irritating.When second blower fan 9 or the 3rd blower fan 12 break down, can cause that equally balance tube 7 internal pressures descend, second acceleration switching valve 15 is opened, be that the corresponding blast furnace of fault blower fan is supplied with security personnel's wind through other blower fan.
The utility model is when preventing fan trouble; Security personnel's wind in the air feed pipe recharges from blower fan; Can on each air feed pipe, manually-operated gate be set, when fan trouble, cut off corresponding air-supply pipeline, the wind that prevents to ensure public security recharges; But sometimes because the more timely reason such as valve-off in staff carelessness or distance fault scene; The situation that the wind that still can occur ensuring public security recharges from blower fan, the utility model can adopt following structure in order thoroughly to avoid the generation of this situation: the first air feed pipe 4 is installed first vacuum breaker 17 near an end of first blower fan 5; The second air feed pipe 8 is installed second vacuum breaker, 18, the three air feed pipes 11 near an end of second blower fan 9 and near an end of the 3rd blower fan 12 the 3rd vacuum breaker 19 is installed.During normal air feed, vacuum breaker does not influence security personnel's wind to be passed through; When blower fan broke down, security personnel's wind was stopped by vacuum breaker, can not recharge from blower fan.
Claims (2)
1. many blast furnace air quantity are helped each other to ensure public security and are prevented irritating the slag device; Comprise first blast furnace (1), second blast furnace (2) and at least one the 3rd blast furnace (3); It is characterized in that: first blast furnace (1) is connected with the first air feed pipe (4), and the first air feed pipe (4) is connected with first blower fan (5), on the first air feed pipe (4) first bypass (6) is set; Second blast furnace (2) is connected with the second air feed pipe (8); The second air feed pipe (8) is connected with second blower fan (9), on the second air feed pipe (8) second bypass (10) is set, and second bypass (10) is gone up first acceleration switching valve (14) is installed; The 3rd blast furnace (3) is connected with the 3rd air feed pipe (11); The 3rd air feed pipe (11) is connected with the 3rd blower fan (12), on the 3rd air feed pipe (11) the 3rd bypass (13) is set, and the 3rd bypass (13) is gone up second acceleration switching valve (15) is installed; First bypass (6), second bypass (10) and the 3rd bypass (13) all are communicated with balance tube (7), and setting pressure transmitter (16) is gone up in the 3rd bypass (13).
2. many blast furnace air quantity according to claim 1 are helped each other to ensure public security and are prevented irritating the slag device; It is characterized in that: the first air feed pipe (4) is installed first vacuum breaker (17) near an end of first blower fan (5); The second air feed pipe (8) is installed second vacuum breaker (18) near an end of second blower fan (9), and the 3rd air feed pipe (11) is installed the 3rd vacuum breaker (19) near an end of the 3rd blower fan (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202800728U CN202201913U (en) | 2011-08-03 | 2011-08-03 | Air volume coadjutant security slag-pouring preventing device for a plurality of blast furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202800728U CN202201913U (en) | 2011-08-03 | 2011-08-03 | Air volume coadjutant security slag-pouring preventing device for a plurality of blast furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202201913U true CN202201913U (en) | 2012-04-25 |
Family
ID=45966045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202800728U Expired - Fee Related CN202201913U (en) | 2011-08-03 | 2011-08-03 | Air volume coadjutant security slag-pouring preventing device for a plurality of blast furnaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202201913U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102796837A (en) * | 2012-08-24 | 2012-11-28 | 北京首钢国际工程技术有限公司 | Device for preventing slag from entering into blast furnace tuyere |
| CN103409574A (en) * | 2013-08-26 | 2013-11-27 | 济钢集团有限公司 | Security air system for preventing slag from entering blast furnaces |
| 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 |
-
2011
- 2011-08-03 CN CN2011202800728U patent/CN202201913U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102796837A (en) * | 2012-08-24 | 2012-11-28 | 北京首钢国际工程技术有限公司 | Device for preventing slag from entering into blast furnace tuyere |
| CN102796837B (en) * | 2012-08-24 | 2013-07-17 | 北京首钢国际工程技术有限公司 | Device for preventing slag from entering into blast furnace tuyere |
| CN103409574A (en) * | 2013-08-26 | 2013-11-27 | 济钢集团有限公司 | Security air system for preventing slag from entering blast furnaces |
| 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 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20170803 |