| The product of coking industry—coke is important material of steel industry, at the same time, byproduct such as tar and coal gas are the basic material of producing chemical product, so, coking industry exert the great function in every aspect of country economy, but, producing process seriously pollute local environment.Under the rigid environmental protect pressure, overseas coke producing capacity of developed country shrink more, nearly depending on import keep demand, producing capacity of domestic coke expand rapidly because of loose environmental protect policy and drive of benefit, out-of-order competition result in the fall of coke price,the foreground of coking industry is uneasy.This paper firstly summarize the actuality of coking industry in domestic and overseas, then, basing on sum up circular economy theory and method, discuss evaluating method of industrial circular economy, using literature for reference, draw out the circular economy evaluating index system of coking industry, by applicable selecting, adopt principal component analysis method to evaluate the system, finally, applying above theory and method of circular economy discuss the constructing of index system for circular economy in bialychapter 5 is the sum-up to papers and prospect of future of coking industry.The main innovation of this paper is: firstly, sum up the developing actuality of coking industry, point out the problem and put forward to adopt circular economy to solve it; secondly, construct the evaluating index system of circular economy for coking industry, and put forward to adopt principal component analysis method to evaluate; finally, for the first time construct the system of circular economy for coking industry of Xiaoyi... |