CN102269757B - Evaluation method of comprehensive performances of PCI (pulverized coal injection) coal - Google Patents
Evaluation method of comprehensive performances of PCI (pulverized coal injection) coal Download PDFInfo
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Abstract
The invention relates to an evaluation method of comprehensive performances of PCI (pulverized coal injection) coal, which belongs to the technical field of the PCI coal. The evaluation method is characterized in that: main performances, such as calorific value, ash content, sulfur content, grindability, combustibility and the like, which can affect the utilization of the PCI coal and technical and economic indicators of a blast furnace, are selected from numerous performances of the PCI coal, data processing is performed and the weighed summation method is adopted for establishing an evaluation index Ap of the comprehensive performances of the PCI coal, which is equal to a*calorific value/30+b*(10.5-ash content)+c*(0.5-sulfur content)+d* grindability/55+e* combustibility/50, wherein a is equal to 80-90; b is equal to 10-5; c is equal to 5-0; d is equal to 5-2; e is equal to 5-3; and a+b+c+d+e is equal to 100. The evaluation method is used for comparing the comprehensive performances of the PCI coal.
Description
Technical field
The invention belongs to injection coal technical field, particularly relate to a kind of injection coal comprehensive performance evaluation method, characterize injection coal performance with comprehensive evaluation index, pulverized coal injection into blast furna performance is carried out to comprehensive evaluation.
Background technology
Pulverized coal injection in blast furnace technology starts between the 50-60 age in last century in China, adopts at that time Yangquan mineral bureau to wash smart stone coal as type approval test object, tests successfully respectively on the ground such as Anshan iron and steel plant and Shoudu Iron and Steel Co.Along with the increase day by day of domestic iron and steel production capacity and the continuous progress of blast-furnace coal powder injection gordian technique and perfect, the market demand expands gradually, particularly day by day deficient along with high-quality caking coal resource in recent years, pulverized coal injection into blast furna improves day by day in the status of smelting iron and steel process procedure, saving the aspects such as steel industry smelting cost, playing the part of more and more important role.
The development path of blast-furnace coal powder injection technology is: originally all adopt stone coal to do injected fuel; Afterwards, finiteness and the former coal reserves thereof supplied with due to stone coal constantly reduced, and the market price is also soaring gradually, adopt more cheap, contain abundanter long-flame coal and stone coal mixed injection and become iron and steel enterprise and further reduce pursuing a goal of smelting cost.After research and testing, in mixing coal powder process and winding-up process, adopting nitrogen purging technology, for system increases security, prevents coal dust explosion, is to obtain the gordian technique of mixing coal winding-up.The success of the test of nitrogen protecting system makes bituminous coal enter substantial phase as injected fuel.According to the different situations of each factory system running, the ratio that most steel mills have been mixed bituminous coal is brought up between 30%-50%, and can activate blast furnace reducing atmosphere adding of bituminous coal injection, for blast furnace reduced iron provides more protium.In recent years, poor thin clean fine coal also enters into injection coal market gradually, and the blending ratio of three kinds of coals had once been stabilized in 1: 1: 1 by Wuhan Iron and Steel Plant, Ma Gang etc., and has obtained good economic benefits.Can predict, not be used as cost-saving gordian technique, adopting three kinds of coal resources mixed injections is developing direction.
The index that characterizes injection coal performance has calorific capacity, ash content, sulphur content, grindability, explosivity, flammability, cohesiveness etc.Rarely certain coal properties is all conducive to blast furnace blowing; Some performance of most of injection coals is conducive to blast furnace blowing, and other performance is unfavorable for blast furnace blowing.At present also do not have a kind of method can evaluate the combination property of injection coal, if can propose a kind of method and come the combination property of more different injection coals, just can be beneficial to and select injection coal that combination property is relatively good for blast furnace blowing, be beneficial to enterprise's consumption reduction synergy.
Summary of the invention
The object of the invention is to propose a kind of injection coal comprehensive performance evaluation method, size that can more different injection coal combination properties.In injection coal performance, choose the main performance that affects injection coal utilization and blast-furnace technique economic target, as calorific capacity, ash content, sulphur content, grindability, flammability etc., with they characterize the combination property of injection coal.
Concrete grammar: injection coal performance synthesis evaluation number is calorific capacity, ash content, sulphur content, grindability, flammability, the adding and value of the product of its corresponding flexible strategy after data processing (having considered technical economical index control criterion, ruuning situation and the process conditions of concrete factories and miness).Characterize the size of injection coal combination property by injection coal performance synthesis evaluation number.
First injection coal is carried out to technical analysis, to obtain ash content, sulphur content detected value; Then injection coal is carried out to bomb calorific value mensuration to obtain calorific capacity; Next utilizes Ha Shi coal pulverizer to detect injection coal and obtains grindability; Secondly utilize again flammability sensing equipment to detect the flammability of injection coal.
Obtaining, after above detection data, need to carrying out following data processing to it:
Calorific capacity data processing is calorific capacity/30,
Ash content data processing be (10.5-ash content,
Sulphur content data processing is 0.5-sulphur content,
Grindability data processing is that grindability/55, flammability data processing are flammability/50,
And give corresponding flexible strategy (a, b, c, d, e, flexible strategy summation is 100).
Finally draw injection coal performance synthesis evaluation number Ap=a* calorific capacity/30+b* (10.5-ash content)+c* (0.5-sulphur content)+d* grindability/55+e* flammability/50
The selection of flexible strategy is relevant with technical economical index control criterion, ruuning situation and the process conditions of each factory.Specifically be described below:
A=80～90, coal ratio is not less than 180Kg/t and selects 90, and coal ratio is not more than 120Kg/t and selects 80; B=10～5, coal ratio is not less than 180Kg/t and selects 10, and coal ratio is not more than 150Kg/t and selects 5; C=5～0, has molten iron pre-service measure and high duty pig iron qualification rate more than 90% (containing 90%) to select 0, and iron-free water pretreatment measure and high duty pig iron qualification rate select 5 below 85%; D=5～2, powder manufacturing apparatus is that medium-speed pulverizer, coal ratio are not less than 160Kg/t and select 5, powder manufacturing apparatus is that bowl mill, coal ratio are not more than 120Kg/t and select 2; E=5～3, coal ratio is not less than 180Kg/t and selects 5, and coal ratio is not more than 120Kg/t and selects 3.Priority between flexible strategy is a, b, c, d, e, and flexible strategy summation is 100.
The integrated evaluating method of pulverized coal injection into blast furna performance of the present invention, adopt on the basis of the single performance data processing of injection coal (calorific capacity, ash content, sulphur content, grindability, flammability etc.), in conjunction with technical economical index control criterion, ruuning situation and the process conditions of concrete factories and miness, take weighted sum to obtain injection coal performance synthesis evaluation number, thereby realize the comprehensive evaluation to injection coal performance.
Embodiment
Move the research of steel injection coal monotypism energy and comprehensive evaluation index in table 1.
Table 1 injection coal performance and comprehensive evaluation index
In table 1, according to technical economical index control criterion, ruuning situation and the process conditions of moving steel, select a=85; B=5; C=5; D=5; E=5.
Claims (1)
1. a pulverized coal injection into blast furna comprehensive performance evaluation method, is characterized in that:
First injection coal is carried out to technical analysis, to obtain ash content, sulphur content detected value; Then injection coal is carried out to bomb calorific value mensuration to obtain calorific capacity; Next utilizes Ha Shi coal pulverizer to detect injection coal and obtains grindability; Secondly utilize again flammability sensing equipment to detect the flammability of injection coal;
Obtaining, after above detection data, it being carried out to following data processing:
Calorific capacity data processing is calorific capacity/30,
Ash content data processing is 10.5-ash content,
Sulphur content data processing is 0.5-sulphur content,
Grindability data processing is that grindability/55, flammability data processing are flammability/50,
And give corresponding flexible strategy: a, b, c, d, e, and wherein, a=80～90; B=10～5; C=5～0; D=5～2; E=5～3; A+b+c+d+e=100;
Finally draw injection coal performance synthesis evaluation number Ap=a* calorific capacity/30+b* (10.5-ash content)+c* (0.5-sulphur content)+d* grindability/55+e* flammability/50.
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| CN103900950B (en) * | 2014-04-04 | 2016-07-13 | 山西潞安环保能源开发股份有限公司 | A kind of experimental technique evaluating pulverized coal injection into blast furna coal-grinding characteristic |
| CN103952503B (en) * | 2014-05-15 | 2015-11-04 | 北京科技大学 | A kind of establishment method of pulverized coal injection into blast furna cost performance evaluation model |
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| CN107993020A (en) * | 2017-12-15 | 2018-05-04 | 马鞍山钢铁股份有限公司 | A kind of cost performance evaluation method of blast furnace blowing single grade coal and Mixture Density Networks |
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| CN113267609B (en) * | 2021-05-27 | 2022-09-13 | 重庆钢铁股份有限公司 | Quality evaluation method of coal for blast furnace blowing |
| CN114047312A (en) * | 2022-01-04 | 2022-02-15 | 西安阿尔特测控技术有限公司 | Coal quality online analysis method based on data processing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038276A (en) * | 2006-03-15 | 2007-09-19 | 鞍钢股份有限公司 | Method and device for detecting combustion performance of pulverized coal |
| CN201063033Y (en) * | 2007-06-19 | 2008-05-21 | 尤荣 | Continuous on-line detecting device for measuring thermal value of coaly |
| JP5010941B2 (en) * | 2007-02-20 | 2012-08-29 | 富士フイルム株式会社 | Curable composition and method for producing cured film using the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0510941A (en) * | 1991-07-04 | 1993-01-19 | Meidensha Corp | Apparatus for measuring removed substance and device for judging putting of activated carbon |
-
2011
- 2011-06-30 CN CN201110181642.2A patent/CN102269757B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038276A (en) * | 2006-03-15 | 2007-09-19 | 鞍钢股份有限公司 | Method and device for detecting combustion performance of pulverized coal |
| JP5010941B2 (en) * | 2007-02-20 | 2012-08-29 | 富士フイルム株式会社 | Curable composition and method for producing cured film using the same |
| CN201063033Y (en) * | 2007-06-19 | 2008-05-21 | 尤荣 | Continuous on-line detecting device for measuring thermal value of coaly |
Non-Patent Citations (6)
| Title |
|---|
| 刘仁生等.潞安新疆煤用作高炉喷吹煤的可行性研究.《煤炭加工与综合利用》.2010,(第1期), |
| 宋瑞芳.煤的弹筒发热量测定中有关问题的探讨.《山东煤炭科技》.2007,(第1期), |
| 张引刚.浅论高炉喷吹煤评价指标.《选煤技术》.2003,(第6期), |
| 浅论高炉喷吹煤评价指标;张引刚;《选煤技术》;20031231(第6期);59，60 * |
| 潞安新疆煤用作高炉喷吹煤的可行性研究;刘仁生等;《煤炭加工与综合利用》;20101231(第1期);28，29 * |
| 煤的弹筒发热量测定中有关问题的探讨;宋瑞芳;《山东煤炭科技》;20071231(第1期);46，47 * |
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