Blast furnace coal injection technology of China’s present situation and trend analysis of supply and demand

Author:ANROSOFT_market survey report Company,market survey report services.( http://anrosoft.com )

First, blast furnace coal injection technology development and technology evolution path

Blast furnace pulverized coal injection technology in our country began in the last century between the age 50-60, when the use of Yangquan Coal Industry Group (formerly known as Yangquan Mining Bureau) fine anthracite washing test for industrial objects, respectively, in the north and Shougang Iron and Steel and so successful, Yangquan Coal Industry Group, one of two mining coal washing plant that specialized in accordance with AISC coal injection on blast furnace products designed to meet the needs, coal washing quality tests have been followed after the success of reunification by Yangquan Mining Bureau formulate a series of product standards (anthracite).

Blast furnace coal injection at from the Industrial Products and promote the use of a large area of the past half century, with the domestic steel production capacity and increasing the blast furnace pulverized coal injection technology, the key to continued progress and improvement of the gradual expansion of market demand, especially high-quality coking coal in recent years as China’s increasingly scarce resources, coal injection in blast furnace iron and steel smelting process aspect of the status of increasing savings at the cost of smelting iron and steel industry, etc., are playing an increasingly important role. In fact, as a metallurgical blast furnace injection of coal use that is available determined that the original intention of this trend: (1) a partial substitute for coal in metallurgical coke, blast furnace coke rate so that lower the cost of pig iron fell; (2) adjust the status of hot furnace system and stable operation; (3) of the pulverized coal injection in blast furnace tuyere theory to reduce pre-combustion gasification combustion temperature, T in order to maintain reasonable and necessary compensation for the blast furnace which moderate the use of high winds created conditions of oxygen-enriched blast; (4 ) injection to replace part of coal coke, coking investment on the one hand, savings and less coke production, reduce air pollution caused by coking; On the other hand, can greatly ease the tense situation of coking coal supply and demand.

Blast furnace pulverized coal injection technology development path as follows: Initially, all make use of anthracite jet fuel injection because the main alternative to coke coal are used in carbon fixation, 100% anthracite injection is used to meet such needs and想法. Later, because of the limited supply of anthracite coal reserves and the steady decline in market prices have gradually increased, the use of cheaper, more abundant reserves of coal and anthracite long flame as a mixed injection smelting iron and steel enterprises to further reduce the cost of goal pursuit. After much research and testing, in the mixed coal injection process of milling and the use of nitrogen inerting technology to increase security for the system to prevent coal explosion, a joint injection are the key technology. Nitrogen protection system so that the trial is successful bituminous coal as the fuel entered a substantive stage after injection. In recent years, the factory system in accordance with the different operating conditions, the northern most steel has the proportion of bituminous mixture to between 30% -50%, and the addition of bituminous coal injection can be activated to restore the atmosphere of blast furnace, in order to provide a more reduced iron blast furnace many elements of hydrogen. Then that is, the last two years, again because of the shortage of anthracite resources, poverty is gradually thin coal washing into the market, the South Wuhan, Maanshan Iron and Steel will be a mixture of three types of coal at the ratio of 1:1:1 was stable, and to obtain a better economic effects. It can be foreseen that the future cost savings as a key technology, the use of coal resources of three mixed-injection, are direction of development.

Blast furnace coal injection coal ratio showed an upward trend year after year, and iron and steel enterprises have gradually become an indispensable one charge. Based on such considerations is that the steel industry through rapid expansion in recent years, the domestic coking coal resources and the supply of metallurgical coke is becoming the “bottleneck” factor. Unlike in previous years, blast furnace injection of coal resources are insufficient, you can use coke, coal less (of course referring to the steel mills have injection facilities), and has now become adjustable space and room for more and more small. Iron and Steel Association in accordance with the statistical data in recent years, the domestic focus of large and medium-sized iron and steel enterprises in 2005 than the average for coal 114KG / tons in 2006 to reach 126KG / tons in 2007 up to 130KG / tons at the same time, into the furnace coke rate showed a downward trend in year-on-year.

Second, domestic demand and supply of metallurgical coke status

Entered since 2008, the domestic coking coal and metallurgical coke market supply and demand relations in 2007 continued the trend of the end of the year, continued to show the situation of short supply to deepen-up direction. One of factors, first, the main source of coking coal in Shanxi coking coal shortage of the actual supply capacity. At small township coal mines closed, the overall production trend is still in the shrink; are two countries since 2006 lagged behind the region of Shanxi Coking capacity out, the actual production of metallurgical coke can not fully meet the market demand. By the scarcity of resources and market demand to continue to maintain a certain growth rate, since January this year, the domestic metallurgical coke market has maintained a 100-150 yuan / ton price increase, the mainstream market prices 1-3 months to achieve a cumulative increase of 350 yuan / ton. At present, metallurgical coke level of car tax prices board in 2100-2200 yuan / ton, for the historical high since the price of the same period, domestic coke exports FOB prices reached 500 U.S. dollars / tons of high.

Three, coal injection at blast furnace iron-smelting technology in the process of analysis of economic effects

Coal injection at blast furnace pig iron smelting aspect is part of the main alternative metallurgical coke, coke to reduce consumption. In addition to improve blast furnace air temperature, increased refining intensity, enhance the level of pig iron production. Blast furnace coal injection on the market analysis should focus on the main blast furnace injection of coal and coke to replace each other to determine the economic effects.

We may wish to market a variety of raw materials to the northern coal and coke as the basis of the purchase price is roughly estimated about 1 ton of pulverized coal jet smelting costs savings rate: calculated on the basis of taking a mixture of bituminous coal and anthracite to consider the upper limit of the ratio of 7:3, then 1 tons of mixed coal purchasing costs 750 yuan / ton, and then consider the 15% loss of the pipeline leak coal, integrated purchasing costs 860 yuan / ton, to continue to consider the injection of coal coke replacement ratio of 80%, taking into coal milling plant artificial and the cost of electricity (150 yuan / ton), the injection of coal and coke cost comparable to the conversion, then finally prices for coal and coke: (860 +150) / 80% = 1260 yuan / ton. 1 ton coal finally sprayed metallurgical coke replacement up to the economic benefits of 2150-1260 = 890 yuan / ton. And in 2006 a relatively stable during the injection of coal and metallurgical coke prices bad 200-300 yuan / ton to expand by 700 yuan / ton as much. Blast furnace injection of coal and metallurgical coke substitution between the price gap between the efficacy and significantly expanded the market for the stability of blast furnace coal injection up to provide a strong support.

Four, blast furnace injection of coal supply and demand of the status quo

1, the supply of blast furnace coal injection characteristics:

(1) macro-economic situation and political factors around the supply capacity of coal injection. And coking coal as metallurgical coal due to coal after washing to reduce ash after coal, and the screen under the Product as coal power, when power coal supply, the coal enterprises in accordance with the call of many countries to sell electricity from coal, shall not sell a lot of metallurgical coal, so that to reduce the supply of metallurgical coal. Chinese New Year this year and after a period of years the South resulted in a rare snow disaster electricity, electricity supply and demand tension, making the supply of metallurgical coal market is the sharp drop in a case in point. Shanxi Coking Coal Group during the disaster has been the proportion of its coal production was reduced to 20%, so that the supply of coking coal has been greatly affected, the other to the power of the bituminous coal-based producers like coal, such as Shenhua, metallurgical coal the impact on the production of even more serious;

(2) the supply of blast furnace coal injection coal enterprises also take the initiative to reduce coal production, which led to changes in supply in response to changes in market factors. Should the supply of any product depends on demand and the demand for blast furnace injection of coal into the furnace and the quality of coke and iron ore grade is closely related to other indicators, when a decline in the quality of coke or a bad grade iron ore, blast furnace coke as a skeleton The role will be weakened, furnace conditions tend to cause further instability and other firms and is not conducive to increasing the amount of coal the situation appeared, resulting in decreased coal value less than planned, injection of coal production enterprises can be based on the demand timely changes in supply, so as to achieve the purpose of maintaining the market price;

(3) As mentioned above, for the iron and steel industry, as coking coal and coke has become bound by the iron and steel smelting capacity of the bottleneck factor continues to grow, it is necessary to maintain the current scale of pig iron, the limited or “no growth” circumstances the supply of coking coal resources in order to improve the quality of coking coal or coke for the premise of trying to raise the level of blast furnace coal injection. Guided by the market demand for coal injection must supply growth should be at the interval.

2, the supply of the status quo

Domestic production of blast furnace injection of coal enterprises, anthracite mainly in the north of Yangquan Coal Industry Group, God Huaning Coal Group, Jincheng Mining Group and the South Shenhuo Yongcheng, Jiaozuo Coal Group-led; depleted thin coal injection to Lu Security ring to, Shanxi Coking Coal Group-led; bituminous coal with Coal Industry Group, such as Shenhua main headquarters. Because of injection of coal washing technology in recent years, the gradual popularization of origin of the blast furnace coal injection on the surrounding has many new statistics washing could not be included in the project, if large groups and small washing coal production between 8: 2 reckoned in the proportion of experience, the overall national capacity of blast furnace coal injection should be at the current 10,000 tons over 4000 level. Because the supply of the actual quantity of the lack of precise statistics, the actual needs of the market to get evidence to the contrary: in 2007 the focus of the domestic iron and steel enterprises large and medium-sized blast furnace coal injection than average 135KG / tons, in 2007 the focus of large and medium-sized domestic production of pig iron for iron and steel enterprises 352 million tons (according to statistics included in Iron and Steel Institute the focus of the 70 large and medium-sized pig iron output of iron and steel enterprises accounted for 75% of the national share), while the domestic consumption of blast furnace coal injection roughly 45 million tons, slightly larger than the supply demand.

The supply of coal from the jet structure, poor production of thin coal injection accounted for 1 / 3 of the weak, but because the supply of anthracite reserves and its ability to gradually shrink, the poor thin jet of coal demand and supply will be gradually increased and showed enlarged year by year trend. The supply structure of this market is already at the initial popularity of the South, the North market is the distance from the arrival of coal and anthracite transport capacity is higher than the actual status of the southern region, the future will remain a certain period of time to anthracite and bituminous coal-based mixed-injection to a small amount of lean coal injection as an aid to the poor to the supply structure.

3, the future demand forecast

Blast furnace coal injection of market demand depends mainly on the size of the iron and steel production, growth dynamics and of blast furnace coal injection coal (consumption) growth factors in two aspects.

First of all, the production of iron and steel industry the size of the demand for blast furnace coal injection scale. Last year, the domestic pig iron production reached 469 million tons, coal ratio of 135KG / tons, domestic blast furnace injection of coal to meet market demand for more than 40 million tons. 8 percent this year, according to the iron and steel production growth rate to forecast production of pig iron will be close to 500 million tons scale, only the iron and coal output growth than the consumption factors enhance removed, then in 2008 the demand for domestic scale blast furnace coal injection will be expanded to about 50 million tons. Iron and steel production to the domestic factors continue to grow, to continue high growth in fixed asset investment, a new socialist countryside construction and expansion of country real estate growth in the supply of a series of policy considerations. Pig iron production in the growth of demand for blast furnace injection of coal is the main stimulus to the following: (1) domestic large and medium-sized blast furnace iron and steel enterprises to accelerate the pace of large-scale. Brought about by large-scale blast furnace iron output growth at the same time, can effectively reduce the coke consumption, to improve the injection of coal than the favorable conditions created a must. (2) in recent years from the metallurgical coke and coking coal “bottlenecks” on the impact of iron and steel industry, metallurgical coke future period must be more to the tight market will deepen development. In such a premise, the national average level of coal in order to maintain the minimum level of the previous year in order to guarantee the normal production of blast furnace operation. (3) steel upstream iron ore and coal prices continued to rise and so the situation will be up to a certain extent and for small and medium-sized iron and steel enterprises have lagged behind the cost of steel production capacity, “extrusion” effect, to accelerate the pace of backward elimination, through market forces improve the iron and steel industry concentration. Large-scale iron and steel enterprises to increase market share trends for PCI lay a solid foundation for growth in demand.

If more than coal conservative 10KG / MT rate of annual increase, taking the whole country of 500 million tons of pig iron base, in 2008 the market demand for blast furnace injection of coal will increase to 800 million tons. Based on the above prediction methods, and then consider the pig iron production increased 8 percent annual rate, the three-year period of 2008-2010 the blast furnace coal injection make a rough prediction of market demand, by the pig iron production and coal consumption growth factors enhance Driven Spray blowing in coal demand will reach an average compound annual growth rate of around 15%.

In addition, other demand-bin from the different geographical point of view, the future for a period of time than the growth rate of coal will be a north south trend of the high. Because of the role of locational factors, the southern region of imports of iron ore raw materials, steel is higher than the northern steel mills, and the average iron ore grade is also higher than the North, and South Shenhuo, such as anthracite Yongcheng Grindability too well in the North West and Yangquan coal, coal than for the homework has laid a foundation of more favorable. Therefore, the future of the blast furnace injection of coal nationwide market will show the basic saturation South, stability, and potential demand for the North to continue to expand the market trend.

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