CN102827974A - Blast furnace material-proportioning and material-loading method - Google Patents
Blast furnace material-proportioning and material-loading method Download PDFInfo
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- CN102827974A CN102827974A CN2012103678188A CN201210367818A CN102827974A CN 102827974 A CN102827974 A CN 102827974A CN 2012103678188 A CN2012103678188 A CN 2012103678188A CN 201210367818 A CN201210367818 A CN 201210367818A CN 102827974 A CN102827974 A CN 102827974A
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Abstract
The invention discloses a blast furnace material-proportioning and material-loading method. The retort western ore under-charging sequence is as follows: 4# sintering-3# sintering-1# ore lumping-2# sintering-2# pelletizing-1# sintering-1# pelletizing-coke nut; and the retort eastern ore under-charging sequence is as follows: 7# sintering-8# sintering-2# ore lumping-9# sintering-2# flux adding-10# sintering-3# flux adding-4# flux adding. After ore-charging is completed and an eastern ore middle bucket gate valve is opened in place to unload into a skip car, a 5# sintering weighing hopper begins to charge; when a western ore middle bucket gate valve is opened in place to unload into a skip car, a 6# sintering weighing hopper begins to charge; and the blast furnace material-proportioning and material-loading process is completed. By adopting the method, 364 cars of ores are loaded in the blast furnace, 14.4 tons of ores each car can be additionally loaded and 5240 tons of ores can be additionally loaded per day. Therefore, the smooth running of the blast furnace can be ensured, the capacity of the middle bucket can be effectively utilized and the investment and the loading time can be saved.
Description
Technical field
The invention belongs to field of metallurgy, relate to a kind of charging method, specifically a kind of blast-furnace burden charging method.
Background technology
There is following problems in the equipment that is adopted during traditional blast-furnace burden material loading: the long-pending design of the intermediate weighed bucket capacity of east, two ores in west is less.West ore blowing is in proper order under the groove of original control: 5# sintering → 4# sintering → 3# sintering → 1# lump ore → 2# sintering → 2# pelletizing → 1# sintering → 1# pelletizing → nut coke; Groove east ore blowing down is in proper order: 6# sintering → 7# sintering → 8# sintering → 2# lump ore → 9# sintering → 2# flux → 10# sintering → 3# flux → 4# flux.According to original batching program, after the weight that all ore buckets are set according to the batching material list has successively been put material, concentrate to struggle against in the middle of being transported to by belt and put into feeding cart again.At present, new blast furnace technology requires agglomerate is enlarged the pellet proportion scale, and raw ore middle hopper Capacity design is less than normal; Caused existing hopper not hold enough ores according to processing requirement; Restricted truck material loading ability, the regular material that loses of blast furnace is unable to catch up with stockline.As expand hopper capacity, then can influence the blast furnace of having gone into operation; And improvement cost is higher.Therefore, the distribution of order blowing can not satisfy the production needs.
Summary of the invention
In order to solve the contradiction of blast-furnace burden and equipment design defective, the purpose of this invention is to provide a kind of blast-furnace burden charging method, solved the not enough problem of intermediate weighed dipper capacity through this method, saved the material loading time simultaneously.
The objective of the invention is to realize through following technical scheme:
A kind of blast-furnace burden charging method is characterized in that this method may further comprise the steps:
1) ore blowing in west is in proper order under the groove: 4# sintering → 3# sintering → 1# lump ore → 2# sintering → 2# pelletizing → 1# sintering → 1# pelletizing → nut coke;
2) east ore blowing is in proper order under the groove: 7# sintering → 8# sintering → 2# lump ore → 9# sintering → 2# flux → 10# sintering → 3# flux → 4# flux.
3) after above-mentioned ore blowing is accomplished, bucket slag plate valve reaches the position in the middle of the eastern ore, begins when the truck discharging, and 5# sintering scale hooper begins blowing; Bucket slag plate valve reaches the position in the middle of the ore of west, begins when the truck discharging, and 6# sintering scale hooper begins blowing; Accomplish the blast-furnace burden material loading.
Among the present invention, in the conveying belt blowing, a part of ore charge has got into truck, has solved the not enough problem of intermediate weighed dipper capacity at 5# sintering and 6# sintering scale hooper.Saved the material loading time simultaneously.
The present invention has solved the not enough problem of intermediate weighed dipper capacity through control material loading rhythm, under the state that does not influence the blast furnace ordinary production, has saved the material loading time, has saved cost of investment.Through this method, 364 car ores on blast furnace every day then, the per car ore can be how last 14.4 tons, amounts to one day and can go up more than 5240 ton of ore more, guaranteed the direct motion of blast furnace, and effectively utilized middle dipper capacity, practiced thrift investment and material loading time.
Embodiment
A kind of blast-furnace burden charging method of the present invention, this method may further comprise the steps:
1) ore blowing in west is in proper order under the groove: 4# sintering → 3# sintering → 1# lump ore → 2# sintering → 2# pelletizing → 1# sintering → 1# pelletizing → nut coke;
2) east ore blowing is in proper order under the groove: 7# sintering → 8# sintering → 2# lump ore → 9# sintering → 2# flux → 10# sintering → 3# flux → 4# flux;
3) after above-mentioned ore blowing is accomplished, bucket slag plate valve reaches the position in the middle of the eastern ore, begins when the truck discharging, and 5# sintering scale hooper begins blowing; Bucket slag plate valve reaches the position in the middle of the ore of west, begins when the truck discharging, and 6# sintering scale hooper begins blowing; Accomplish the blast-furnace burden material loading.
In the conveying belt blowing, a part of ore charge has got into truck, has solved the not enough problem of intermediate weighed dipper capacity, has saved the material loading time simultaneously at 5# sintering and 6# sintering scale hooper in the present invention.
Claims (2)
1. blast-furnace burden charging method is characterized in that this method may further comprise the steps:
1) ore blowing in west is in proper order under the groove: 4# sintering → 3# sintering → 1# lump ore → 2# sintering → 2# pelletizing → 1# sintering → 1# pelletizing → nut coke;
2) east ore blowing is in proper order under the groove: 7# sintering → 8# sintering → 2# lump ore → 9# sintering → 2# flux → 10# sintering → 3# flux → 4# flux;
3) after above-mentioned ore blowing is accomplished, bucket slag plate valve reaches the position in the middle of the eastern ore, begins in the time of the truck discharging, and 5# sintering scale hooper begins blowing; Bucket slag plate valve reaches the position in the middle of the ore of west, begins in the time of the truck discharging, and 6# sintering scale hooper begins blowing; Accomplish the blast-furnace burden material loading.
2. blast-furnace burden charging method according to claim 1 is characterized in that: in the conveying belt blowing, a part of ore charge has got into truck at 5# sintering and 6# sintering scale hooper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103678188A CN102827974A (en) | 2012-09-27 | 2012-09-27 | Blast furnace material-proportioning and material-loading method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012103678188A CN102827974A (en) | 2012-09-27 | 2012-09-27 | Blast furnace material-proportioning and material-loading method |
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| CN102827974A true CN102827974A (en) | 2012-12-19 |
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| CN2012103678188A Pending CN102827974A (en) | 2012-09-27 | 2012-09-27 | Blast furnace material-proportioning and material-loading method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111304389A (en) * | 2020-04-10 | 2020-06-19 | 山东钢铁集团日照有限公司 | Method for reducing bending loss of blast furnace tuyere |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202272887U (en) * | 2011-10-11 | 2012-06-13 | 中冶南方工程技术有限公司 | Coke weighing control system under trough of blast furnace and without scattering hopper |
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2012
- 2012-09-27 CN CN2012103678188A patent/CN102827974A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202272887U (en) * | 2011-10-11 | 2012-06-13 | 中冶南方工程技术有限公司 | Coke weighing control system under trough of blast furnace and without scattering hopper |
Non-Patent Citations (5)
| Title |
|---|
| 《中国计量协会冶金分会2010年会暨全国第十五届自动化应用学术交流会论文集》 20100901 徐岸非等 宁钢2500m�高炉槽下供料系统分析 , * |
| 《炼铁》 20100228 范小刚 沙钢5800m�高炉供料系统工艺特点 第29卷, 第1期 * |
| 徐岸非等: "宁钢2500m³高炉槽下供料系统分析", 《中国计量协会冶金分会2010年会暨全国第十五届自动化应用学术交流会论文集》 * |
| 范小刚: "沙钢5800m³高炉供料系统工艺特点", 《炼铁》 * |
| 袁晓义: "高效化高炉槽下改造的设计与实践", 《第七届全国设备与维修工程学术年会论文集》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111304389A (en) * | 2020-04-10 | 2020-06-19 | 山东钢铁集团日照有限公司 | Method for reducing bending loss of blast furnace tuyere |
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Application publication date: 20121219 |