ANTHRACITE

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In the last 15 years Minermet Group has opened up a new Division for Anthracite, Coal and Coke which is expanding very much, for markets in Europe, Russia, Middle East, Pakistan, India, Vietnam,  Australia and Indonesia.


Coal (from the Old English term col, which has meant "mineral of fossilized carbon" since the 13th century)is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. Coal is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.

Throughout history, coal has been used as an energy resource, primarily burned for the production of electricity and/or heat, and is also used for industrial purposes, such as refining metals. A fossil fuel, coal forms when dead plant matter is converted into peat, which in turn is converted into lignite, then sub-bituminous coal, after that bituminous coal, and lastly anthracite. This involves biological and geological processes that take place over a long period. The Energy Information Administration estimates coal reserves at 948×109 short tons (860 Gt).One estimate for resources is 18 000 Gt.

Coal is the largest source of energy for the generation of electricity worldwide, as well as one of the largest worldwide anthropogenic sources of carbon dioxide releases. In 1999, world gross carbon dioxide emissions from coal usage were 8,666 million tonnes of carbon dioxide.In 2011, world gross emissions from coal usage were 14,416 million tonnes.Coal-fired electric power generation emits around 2,000 pounds of carbon dioxide for every megawatt-hour generated, which is almost double the approximately 1100 pounds of carbon dioxide released by a natural gas-fired electric plant per megawatt-hour generated. Because of this higher carbon efficiency of natural gas generation, as the market in the United States has changed to reduce coal and increase natural gas generation, carbon dioxide emissions have fallen. Those measured in the first quarter of 2012 were the lowest of any recorded for the first quarter of any year since 1992.In 2013, the head of the UN climate agency advised that most of the world's coal reserves should be left in the ground to avoid catastrophic global warming.

Coal is extracted from the ground by coal mining, either underground by shaft mining, or at ground level by open pit mining extraction. Since 1983 the world top coal producer has been China.In 2011 China produced 3,520 million tonnes of coal – 49.5% of 7,695 million tonnes world coal production. In 2011 other large producers were United States (993 million tonnes), India (589), European Union (576) and Australia (416).[9] In 2010 the largest exporters were Australia with 328 million tonnes (27.1% of world coal export) and Indonesia with 316 million tonnes (26.1%),while the largest importers were Japan with 207 million tonnes (17.5% of world coal import), China with 195 million tonnes (16.6%) and South Korea with 126 million tonnes (10.7%).

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Q:Air purification carbon bag useful?
When exposed to toxic and harmful gases and air pores in the surface of the activated carbon, adsorption of poisonous and harmful gases will be generated by these pores adsorbed into the pores in the field, but when the poisonous and harmful gases in the air and the surface of the activated carbon has no chance to contact when activated carbon itself is toxic and harmful gases will not take the initiative to contact with the adsorption the surface of the. That is to say, the use of indoor air in the corner or on the ground spread some of the activated carbon purification method
Q:How to distinguish the mechanism of charcoal is good or bad?
The ash content of charcoal will vary with the carbonization process and temperature. But wood or scrap, they are not carbon ash differences, generally speaking, in the same conditions, the broad-leaved forest burning charcoal than coniferous forest, a large proportion of the raw bark burn the charcoal ash as well. The usual charcoal ash in 1 ~ 4%.
Q:The difference between ginger and roasted ginger ginger charcoal.
Ginger Shizai in "Shen Nong's herbal classic", the processed products of ginger first recorded in Chinese "typhoid fever". The Song Dynasty, "Tai Sheng Hui Fang" contained in the ginger in "gun", and a "carbon gun" ginger charcoal. We can think of ginger charcoal from the Song Dynasty as a product of dried ginger. The Ming Dynasty in the "preparation" law of Miao Xiyong pointed out: "if the ginger postpartum blood deficiency fever and bleeding are fried black, gun powder Hanxie Wenzhong, the management of lung Ziou students". "Pointed out:" in the "compendium of Materia Congyuan ginger ginger black gun that posterity banthine gun is pungent ginger, if processing diminished, too, nature does not exist, that the bitter ginger charcoal, not spicy, the frivolous is not real, and not the function etc.". The "national processing standard of traditional Chinese medicine" specifically to distinguish the two: "gun Jiang Wen in the cold, abdominal pain, vomiting and diarrhea for spleen deficiency. Ginger carbon temperature by bleeding. Attending vomit blood due to Yin deficiency". So that the roasted ginger charcoal should be two kinds of different processed products of Rhizoma zingiberis.
Q:What is the difference between activated carbon and charcoal?
Activated carbon is a kind of porous carbon, according to the adsorption characteristics of activated carbon, activated carbon is mainly used to remove pollutants in water, decolorization, filtration and purification of liquid, gas
Q:Trouble who told me the coal index of English code
Now we often report the moisture index:1, all water (Mt), is the sum of all the internal moisture and external moisture in coal, also commonly used Mar. Usually below 8%.2, air dry base moisture (Mad), refers to the coal in the air dry state containing water. Can also be considered to be internal moisture, the old national standard has called the "analysis of water base".
Q:What is lean coal, lean coal classification
(2) lean coal (PM). Coal is a high degree of coalification coal, non caking or slight adhesion. No coking coking furnace. In the laminar flame, burning resistance.(3) lean coal (PS). Lean coal is a kind of high rank and low volatile bituminous coal and weakly caking. Typical coal coking, coking, coke powder are generated.(4) (SM). Coal coal is low volatile medium caking coking coal. Can produce a certain amount of colloid in coking. Separate coking, can get large blocks, crack less, shatter resistant better coke, but poor wear resistance of coke.
Q:Mechanism charcoal market know the boss
The location of the workshop for the placement of equipment shall not be less than 100 square meters. The housing must be set higher than three meters, the best can reach 3.5 meters or more, because no matter drying or molding, the entire production process in the workshop will be more or less smoke, stay for a long time will feel uncomfortable. Set high housing can improve the working environment. There are some benefits to fire. Warehouse, mainly used for the storage of finished products, not too many requirements, no fire hazards can be. For the outdoor, have enough space piled up raw materials, but also building and the kiln work site, a rough count at least have 500 flat. Another important point is that the flue gas emissions. The best way to stay away from the crowd, so that the pressure of environmental protection will be smaller. To avoid the impact on the lives of the surrounding residents.
Q:The basic situation of coal occurrence in coal mining area
(1) the origin of the edge coal. The main reasons for the formation of edge coal are as followsThe arrangement mode of the utility model is that the straight groove and the cutting hole are directly connected to form a cutting edge triangle coal,Is the formation of the edge of the coal artificial factors; two is affected by the fault and geological structure, can not ruleIt is a natural factor for the formation of the edge coal to arrange the complex block of the working face. ThreeThe coal pillar and the coal pillar in the mining area have a certain mining value:
Q:There are several types of coal
Many kindsCoking coal is only one of themAnthracite is divided into:Anthracite oneAnthracite twoAnthracite three
Q:Coal is a kind of coal called "coal", what is the coal ah
The final coal is the smallest particle of coal, which is similar to powder after sieving.

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