CN201391876Y - Coke oven gas igniter for blast furnace gas combustion diffusing tower - Google Patents
Coke oven gas igniter for blast furnace gas combustion diffusing tower Download PDFInfo
- Publication number
- CN201391876Y CN201391876Y CN200920140117U CN200920140117U CN201391876Y CN 201391876 Y CN201391876 Y CN 201391876Y CN 200920140117 U CN200920140117 U CN 200920140117U CN 200920140117 U CN200920140117 U CN 200920140117U CN 201391876 Y CN201391876 Y CN 201391876Y
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- igniter
- blast furnace
- gas
- furnace gas
- airport
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Abstract
The utility model belongs to auxiliary equipment in blast furnace iron-making, particularly to a coke oven gas igniter for a blast furnace gas combustion diffusing tower. The coke oven gas igniter comprises a central ventage formed on a discoid steel plate surface and ventages uniformly arranged at the periphery of the central ventage; the front end of a main igniter connected through a gas pipe extends through the central ventage; a branch pipe used for connecting an auxiliary igniter is arranged on the gas pipe below the main igniter; and the auxiliary igniter is arranged in the ventage below the central ventage on the steel plate. The utility model can adapt pressure fluctuation caused by diffusing amount of blast furnace gas, and is free from changeable factors of the diffusing amount, which can ensure the coke oven gas igniter to combust continuously, meet the conditions of continuous combustion of diffused blast furnace gas, and eliminate unsafe factors.
Description
Technical field
The utility model belongs to the auxiliary equipment of blast furnace ironmaking, and particularly tower coke-stove gas igniter is diffused in the blast furnace gas burning.
Background technology
At present, metallurgy industry is because of the reason of process safety and rhythm of production both at home and abroad, all be provided with Bleeding Device of Blast Furnace Gas, because contain CO in the blast furnace gas up to 26～30%, calorific value is relatively low and be hypertoxic gas, diffuse the local air of one side severe contamination in the air, the blast furnace gas that diffuses on the other hand causes great threat to peripheral region staff's personal safety, and iron and steel enterprise repeatedly takes place because of the blast furnace gas that diffuses burning not yet in effect personnel's intoxication accident to take place both at home and abroad.All follow coke-stove gas igniting and smooth combustion apparatus so when design and installation, diffuse tower, the blast furnace gas that diffuses is fully burnt, become harmless CO
2And water.Therefore, can the coke-stove gas igniter operate as normal be the clean-burning key factor of blast furnace gas that decision is diffused.
Blast furnace gas is a gas colourless, tasteless, inflammable and explosive, that severe toxicity is arranged, and CO content is 26～30%, severe about 1.25, approaching with air severe, when running into rainy weather, when atmospheric pressure is low, blast furnace gas is difficult for diffusion aloft, and can sink near the ground burning-point about 550～600 with the wind.C, calorific value 3353～3971kJ/m3.The burning-point height, calorific value is low, the coke-stove gas ever-burning flame must be arranged as following burning things which may cause a fire disaster could guarantee the blast furnace gas continuous burning that diffuses.
At present, the blast furnace that the steel plant that have are 2 * 2500 cubic metres is provided with a burning and diffuses tower, and diffusing tower is three-tube type, and every pipe diameter is DN1300, can diffuse 1.3 * 100000 cubic metres/h of blast furnace gas, the three towers amount of diffusing simultaneously can reach 3.9 * 100000 cubic metres/h.
Blast furnace gas diffuses tower and both can be used as emergency safety measure under the blast furnace accident condition, and as the regulating action of system pressure, therefore, it is very crucial that burning diffuses that tower fully burns to the blast furnace gas that diffuses in the time of can playing ordinary production again.
Be the blast furnace gas completing combustion of guaranteeing to diffuse, be laid with a DN50 coke oven gas pipe with every blast furnace gas diffuse channel at present, be provided with three coke-stove gas igniters, be 120 at the port place of every pipeline of cat head.Evenly lay, each igniter diameter is φ 8mm, igniter is with 45 ° of coaxial being installed in one section DN100 short tube of direction, and igniter has a slice evenly to lay the special steel disc of 6 diameter 32mm airports behind, with the satisfied required air of coke-stove gas burning that comes out from igniter.
In the actual moving process, because of the blast furnace gas amount of diffusing is that continuous change with blast furnace gas system aggregate demand changes, under the little and stable situation of the amount of diffusing, igniter can normally move, but when the amount of diffusing fast by little increase or fast when reducing greatly, the port gas speed changes greatly, the pressure transient fluctuation is big, igniter place air velocity is wide variation thereupon, cause igniter moment flame-out, the blast furnace gas that diffuses brings serious threat because of burning things which may cause a fire disaster interrupts stopping working thereupon to the peripheral region personal security.
The utility model content
The purpose of this utility model is to provide a kind of blast furnace gas burning to diffuse tower coke-stove gas igniter, can adapt to the pressure oscillation that the blast furnace gas amount of diffusing causes, the amount of being diffused change factor does not restrict, guarantee the burning of coke-stove gas igniter steady and continuous, satisfy the condition of the blast furnace gas continuous burning that diffuses, eliminate unsafe factor.
The purpose of this utility model is achieved in that the burning of a kind of blast furnace gas diffuses tower coke-stove gas igniter, be included on the discoid steel disk face center airport is being set, the uniform airport that is being provided with around the airport of center, its front end of principal point firearm that connects by gas pipe stretches out from the airport of center, the arm that is provided with on the gas pipe that is positioned at below the primary ignition device is connecting secondary igniter, and secondary igniter is arranged in the airport of airport bottom, steel disk center.
Coke-stove gas igniter of the present utility model is on the gas pipe below the principal point firearm arm to be set, and the secondary igniter that arm connects is arranged in the airport of airport bottom, steel disk center.Coke-stove gas enters major and minor igniter respectively from gas pipe and arm, rely on electronic ignition device at first to light the principal point firearm, the principal point firearm is lighted secondary igniter then, the air of the coke-stove gas burning of principal point firearm enters from uniform airport, and the air that the coke-stove gas burning of secondary igniter needs enters from an airport.When the blast furnace gas amount of diffusing transient change causes igniter regional air change in flow, the principal point firearm can not adapt to, and when flame-out, secondary igniter can be guaranteed not extinguish, and rapidly the principal point firearm is lighted.This device can adapt to the pressure oscillation that the blast furnace gas amount of diffusing causes, and the amount of being diffused change factor does not restrict, and is not subjected to simultaneously the influence of Changes in weather factor, in any case, all can normally stablize, continuous burning.When principal point firearm moment extinguished, secondary igniter can in time be lighted the principal point firearm rapidly.Because it is mouthful far away that secondary igniter diffuses apart from blast furnace gas, the not influence that changes of the pressure that brings of the amount of being diffused instantaneous variation can the continous-stable burning.When the principal point firearm extinguishes because of the bigger variation of moment of the blast furnace gas amount of diffusing causes local pressure to change, secondary igniter can be in time firing point firearm promptly, realize continuous burning, the personnel of need not rush towards the on-site manual igniting.The utility model has satisfied the condition of the blast furnace gas continuous burning that diffuses, and eliminates unsafe factor.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model master TV structure schematic diagram;
Fig. 2 is the side-looking structural representation of Fig. 1;
The specific embodiment
Tower coke-stove gas igniter is diffused in a kind of blast furnace gas burning, as shown in Figure 1 and Figure 2, be included on 1 of the discoid steel disk center airport 3 is being set, the uniform airport 2 that is being provided with around center airport 3, principal point firearm 4 its front ends that connect by gas pipe 5 stretch out from center airport 3, the arm that is provided with on the gas pipe 5 that is positioned at below the primary ignition device 3 is connecting secondary igniter 6, and secondary igniter 6 is arranged in the airport 2 of airport 3 bottoms, steel disk center.The quantity of airport 2 is 5-8.
Claims (2)
1, tower coke-stove gas igniter is diffused in a kind of blast furnace gas burning, be included on discoid steel disk (1) face center airport (3) is being set, the uniform airport (2) that is being provided with around center airport (3), its front end of principal point firearm (4) that connects by gas pipe (5) stretches out from center airport (3), it is characterized in that: go up the arm that is provided with at the gas pipe (5) that is positioned at primary ignition device (3) below and connecting secondary igniter (6), secondary igniter (6) is arranged in the airport (2) of steel disk center airport (3) bottom.
2, tower coke-stove gas igniter is diffused in blast furnace gas burning according to claim 1, and it is characterized in that: the quantity of airport (2) is 5-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920140117U CN201391876Y (en) | 2009-04-29 | 2009-04-29 | Coke oven gas igniter for blast furnace gas combustion diffusing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920140117U CN201391876Y (en) | 2009-04-29 | 2009-04-29 | Coke oven gas igniter for blast furnace gas combustion diffusing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201391876Y true CN201391876Y (en) | 2010-01-27 |
Family
ID=41598700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920140117U Expired - Fee Related CN201391876Y (en) | 2009-04-29 | 2009-04-29 | Coke oven gas igniter for blast furnace gas combustion diffusing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201391876Y (en) |
-
2009
- 2009-04-29 CN CN200920140117U patent/CN201391876Y/en not_active Expired - Fee Related
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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: 20100127 Termination date: 20100429 |