2016年11月3日星期四

Introduction on Main Application of Anthracite




Anthracite, commonly recognized as white coal or smokeless coal, is the coal of maximum degree coalification. Its coal content material reaches higher to 90 to 98 %, whilst hydrogen content material is generally much less than 4 percent. It has many characteristics like low volatiles, higher strong coal, high hardness, tough abrasion, higher fire point, shot flame, weak chemical reaction, non-cohesiveness, no thickness of colloidal layer and non-smoking when burning. The caloric value is roughly 6000 to 6500 kcal per kg. Occasionally, in the viewpoint of Anthracite Supplier, they contact anthracite of fantastic volatile content material semi-anthracite and that of little higher anthracite.
Anthracite is utilized in synthesis ammonia manufacture as gas making raw material and nitrogenous fertilizer production. With properties of low ash, low sulfur and great abrasiveness, anthracite can not just be used as fuel for blowing and sintering iron ore in blast furnace but, especially for Calcined Anthracite as raw material for manufacturing numerous carbon supplies like carbon electrode, anode paste and activated coal. Some of superb quality may be manufactured into briquette coal for aviation use for the purpose of thermal insulation for plane engine and car motor.
In detail, anthracite has following applications as below.
Firstly, chemical material. Anthracite is the essential raw material for synthesizing ammonia and producing nitrogenous fertilizer and urea. These of low ash and low sulfur can still be utilized to manufacture graphite as New Graphite Material. Of course, apart from graphite, this sort of anthracite also has wide application in creating calcium carbide, carbon electrode, silicon carbide, carbon fiber and some other people.
Secondly, blast furnace injection coal. With the daily enlargement of steel productivity and continuous improvement and perfection of crucial technologies in blast furnace coal injection, blast furnace coal injection is playing a increasingly more essential role in saving smelting cost in steel industry. Anthracite becomes the best option within this application for extremely high carbon content. To use anthracite, some in the type as Anthracite Ball as the partial replacement of metallurgical coke, on 1 hand, decreases pig iron cost by lowering iron and coke ratio, and on anther, saves coking investment by developing much less coke oven. Hence, it decreases air pollution caused by coking at the same time of significantly relieving the intensive condition of coking coal resource.
Thirdly, electrical energy generation fuel. Anthracite has currently turn out to be superb fuel in electrical energy generation for the traits of high heat and non-smoke in burning. Nevertheless, just as Coal Supplier indicates, it's nonetheless not extensively applied only for the reason of relatively higher price. But with daily strengthened environment protection force, a batch of energy plants fueled by anthracite, merger lean coal or even the blender are place into production in succession. Anthracite is certainly to become additional popularized as electrical energy generation fuel.

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