CN201697467U - Blast-furnace gas igniter of sintering machine - Google Patents
Blast-furnace gas igniter of sintering machine Download PDFInfo
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- CN201697467U CN201697467U CN2010202193913U CN201020219391U CN201697467U CN 201697467 U CN201697467 U CN 201697467U CN 2010202193913 U CN2010202193913 U CN 2010202193913U CN 201020219391 U CN201020219391 U CN 201020219391U CN 201697467 U CN201697467 U CN 201697467U
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Abstract
The utility model relates to a blast-furnace gas igniter of a sintering machine, which includes a drying section, an ignition section, a heat preservation section and gas burners, wherein the length L1 of the drying section is about 10-20% of the total length of the igniter, the length L2 of the ignition section is about 40-60% of the total length of the igniter, the length L3 of the heat preservation section is about 20-40% of the total length of the igniter, and a supercharging device is further arranged on the heat preservation section of the igniter. Four to six rows of gas burners are arranged at equal intervals in the length direction of the ignition section, and the gas is classified as the blast-furnace gas with low heating value. The supercharging device includes coke oven gas burners and a control valve, the four to six coke oven gas burns are arranged on the side wall of the heat preservation section of the igniter and connected with a coke oven gas conduit, and the control valve is arranged on the coke oven gas conduit. The utility model has benefits as follows: (1) the blast-furnace gas resource with low heating value can replace the coke oven gas resource with high heating value; (2) the pressure of the shortage of the gas resource with high heating value can be relieved; and (3) the sintering production cost can be reduced.
Description
Technical field
The utility model relates to ignition of sintering process device field, relates in particular to a kind of sintering machine blast furnace gas igniter.
Background technology
At present, igniter mainly adopted coke-stove gas or mixed gas igniting when sintering machine was produced, and wherein mixed gas is mixed with coke-stove gas by a certain percentage by blast furnace gas.Because coke-stove gas calorific value height, the scope of application is wide, and the user is many, cause coke-stove gas is short resource during northern iron and steel is produced always, especially in the winter time in producing, under the situation that coke-stove gas user and gas consumption amount roll up, the situation of coke-stove gas shortage is severe more.When adopting the pure blast furnace gas igniting, though can use no or little coke-stove gas, because the unstability that blast furnace is produced, the pressure of blast furnace gas and calorific value fluctuation are bigger, bring certain difficulty to SINTERING PRODUCTION.
Summary of the invention
The purpose of this utility model provides a kind of sintering machine blast furnace gas igniter, use pure blast furnace gas replacement mixed gas or coke-stove gas to alleviate the pressure of coke-stove gas deficiency, equalization point firearm pressure in the burner hearth, alleviate the influence of blast furnace gas pressure or calorific value fluctuation, save high-quality resource consumption and reduce the SINTERING PRODUCTION cost SINTERING PRODUCTION.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of sintering machine blast furnace gas igniter, comprise dryer section, igniting section, soaking zone, coal gas burner, dryer section length L 1 accounts for 10～20% of igniter length overall, igniting segment length L2 accounts for 40～60% of igniter length overall, soaking zone length L 3 accounts for 20～40% of igniter length overall, and described igniter soaking zone also is provided with supercharging device.
Described igniting section goes up presses length direction disposed at equal distance 4～6 row's coal gas burners, and described coal gas is low-calorie blast furnace gas.
The both sides of described igniter igniting section also respectively are provided with 2～3 little burners of pure coke-stove gas that are used for to the blast furnace gas igniting.
Described supercharging device comprises coke-stove gas supercharging burner, by-pass valve control, and 4～6 coke-stove gas supercharging burners are arranged on the igniter soaking zone sidewall and are connected with coke oven gas pipe, and by-pass valve control is arranged on the coke oven gas pipe.
Compared with prior art, the beneficial effects of the utility model are: the coke-stove gas resource that 1) can replace high heating value with low-calorie blast furnace gas resource; 2) can alleviate the pressure of high heating value gas shortage of resources; 3) can reduce the SINTERING PRODUCTION cost; 4) can balance blast furnace gas igniter because of blast furnace gas pressure or calorific value fluctuation cause igniter pressure in the burner hearth deficiency, guarantee that SINTERING PRODUCTION normally carries out; 5) make blast furnace gas igniter production target stable more, reliable.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: the little burner 6-of 1-dryer section 2-igniting section 3-soaking zone 4-blast furnace gas burner 5-coke-stove gas sintering machine 7-coke-stove gas supercharging burner 8-by-pass valve control 9-supercharging device 10-coke oven gas pipe
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described further:
See Fig. 1, a kind of sintering machine blast furnace gas igniter, be arranged on the above-head of sintering machine 6, spatially be divided into dryer section 1, igniting section 2, soaking zone 3, coal gas burner is set at the top of igniting section 2, for guaranteeing 250～350 ℃ of dryer section 1,1000～1100 ℃ of igniting section 2,400～700 ℃ temperature requirement of soaking zone 3, adjust dryer section length L 1 and account for 10～20% of igniter length overall, igniting segment length L2 accounts for 40～60% of igniter length overall, soaking zone length L 3 accounts for 20～40% of igniter length overall, and on the igniting section, press length direction disposed at equal distance 4～6 and arrange low-calorie blast furnace gas burner 4, wherein lack 2 pieces than the centre position burner near dryer section 1 with near row's burner quantity of soaking zone 3, its effect is to be dryer section 1 and soaking zone 3 heating temperature raisings, and the effect of 2～3 middle row's burners is igniting.The both sides of described igniter igniting section also respectively are provided with 2～3 little burners 5 of pure coke-stove gas that are used for to the blast furnace gas igniting, to guarantee that low-calorie blast furnace gas is by reliable ignition.Described igniter soaking zone 3 also is provided with supercharging device 9, comprise coke-stove gas supercharging burner 7, by-pass valve control 8, coke-stove gas supercharging burner 7 is arranged on igniter soaking zone 3 sidewalls and is connected with coke oven gas pipe 10, and by-pass valve control 8 is arranged on the coke oven gas pipe 10.Described coke-stove gas supercharging burner 7 is 4～6.
Among the embodiment, when blast furnace gas pressure or calorific value occur and fluctuates widely, the by-pass valve control 8 of the coke oven gas pipe on the soaking zone 3 10 is opened, four coke-stove gas burners 7 igniting, the atmosphere that produces with the coke-stove gas burning is come the pressure in the balance blast furnace gas igniter burner hearth.After blast furnace gas pressure or calorific value recovery normally, close 4 coke-stove gas burners 7 that soaking zone is set up, thereby save coke-stove gas.
Claims (4)
1. sintering machine blast furnace gas igniter, comprise dryer section, igniting section, soaking zone, coal gas burner, dryer section length L 1 accounts for 10～20% of igniter length overall, igniting segment length L2 accounts for 40～60% of igniter length overall, soaking zone length L 3 accounts for 20～40% of igniter length overall, and described igniter soaking zone also is provided with supercharging device.
2. a kind of sintering machine blast furnace gas igniter according to claim 1 is characterized in that, described igniting section goes up presses length direction disposed at equal distance 4～6 row's coal gas burners, and described coal gas is low-calorie blast furnace gas.
3. a kind of sintering machine blast furnace gas igniter according to claim 1 and 2 is characterized in that, the both sides of described igniter igniting section also respectively are provided with 2～3 little burners of pure coke-stove gas that are used for to the blast furnace gas igniting.
4. a kind of sintering machine blast furnace gas igniter according to claim 1, it is characterized in that, described supercharging device, comprise coke-stove gas burner, by-pass valve control, 4～6 coke-stove gas burners are arranged on the igniter soaking zone sidewall and are connected with coke oven gas pipe, and by-pass valve control is arranged on the coke oven gas pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202193913U CN201697467U (en) | 2010-06-09 | 2010-06-09 | Blast-furnace gas igniter of sintering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202193913U CN201697467U (en) | 2010-06-09 | 2010-06-09 | Blast-furnace gas igniter of sintering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201697467U true CN201697467U (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202193913U Expired - Fee Related CN201697467U (en) | 2010-06-09 | 2010-06-09 | Blast-furnace gas igniter of sintering machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN201697467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677142A (en) * | 2017-10-18 | 2018-02-09 | 江苏永钢集团有限公司 | Sintering ignition furnace fuel control system |
-
2010
- 2010-06-09 CN CN2010202193913U patent/CN201697467U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677142A (en) * | 2017-10-18 | 2018-02-09 | 江苏永钢集团有限公司 | Sintering ignition furnace fuel control 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: 20110105 Termination date: 20160609 |
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| CF01 | Termination of patent right due to non-payment of annual fee |