This paper introduces the background of the generation and impro ve ment course of heat- recovery coke oven, and analyzes the features, existing pr oblems and improving measures of the oven profiles in each stage of its improvem ent, and makes evaluation on the environmental behaviors of the heat- recovery coke oven from the angle of environmental protection.

This paper expounds some problems that need to be solved on cleaner heat recovery coke oven in the process of report compiling of environmental impact assessment,including the discharge capacity per ton coke,material consumption indexes,the methods for the desulphurization of waste heat boilers and the comparison and selection of these methods.

This paper introduces the QRD series clean heat recovery coke-oven, through thermotechnical calculation, compares the concrete parameters and usage effect of the current programme with the improved programme of the clean coke- oven, and contrasts the performances of the firedoor after transformation with t he performances of the firedoor before transformation.

This paper introduces the present situation, existing problems and solving ideas of the environmental protection of the heat recovery tamping and cleaning type coke oven.