High-temperature casting molded coal and method for producing the same

Abstract

The invention discloses a high-temperature casting coal and a production method for the coal. The product from the invention comprises 50-90% fine anthraciferous coal, 1-12% coke coal, 5-25% peacoke, 1-10% binder and 0.1-1% active agent. The production method of the invention comprises selecting material, blending materials, crushing, mixing and agitating, forming, carbonizing and getting finished product. The invention can reduce about 10% ash, so that the fixed carbon content of the product can be increased greatly, and the product is of very good water proofness and cold and hot strength, is easy to store and transport; meanwhile, a lot of microholes are produced during the carbonizing, this is good for active reaction during casting and production of chemical fertilizer plant, is both useful for gas making and casting, and can save about 50% coke.

Description

technical field [0001] The invention relates to a high-temperature cast molded coal and a production method thereof. Background technique [0002] Briquette is one of the directions of deep processing in the coal industry and has a long history. However, general industrial briquettes are mainly used to replace lump coal in the production of chemical and other industries, and considerable results have been achieved. With the rapid development of my country's economy, the degree of industrialization will become higher and higher, the demand for machinery and chemical products will increase, and the demand for lump coal and foundry coke will continue to increase. However, the distribution of coal varieties in my country is extremely unreasonable. The main coking coal used for coking coal is very short, accounting for only 1% of the total coal, and the anthracite lump coal used for chemical industry accounts for only 2% of the total coal. This is inevitable. As a result, the pr...

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Problems solved by technology

However, the distribution of coal varieties in my country is extremely unreasonable. The main coking coal used for coking coal is very short, accounting for only 1% of the total coal, and the anthracite lump coal used for chemical industry accounts for only 2% of the total coal. This is inevitable. Leading to higher and higher prices of main coking coal and anthracite, resource reduction

Although our country is rich in anthracite clean coal, and the price is low, in order to reduce the manufacturing cost of machinery and chemical products, it has not yet developed a wide source, large quantity, low cost, which can meet the requirements of the forming process and practical strength requirements. Binders that can meet the combustion characteristics, so it is impossible to use cheap raw materials to produce briquettes that meet environmental protection requirements

For example, Chinese patent 01130.992.X discloses a kind of "environmentally friendly high-temperature briquette", whose composition ratio is: anthracite 35-40%, bituminous coal 45-55%, binder 10-15%, and the proportion of bituminous coal is large, so the smoke and dust Pollution is relatively large and the cost is high

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