On October 18, according to the pollution emission performance standard of iron and steel industry, the relevant departments of Tangshan city classified the performance of differentiated cross-peak production pollution discharge of iron and steel enterprises in autumn and winter, and identified 1 class A enterprise and 22 class B enterprises. There were 9 Class C enterprises, 3 Class D enterprises and 1 enterprise without sewage discharge permit. (see table below for details)

Tangshan staggered peak production limit task decomposition: class B enterprises wrong peak production limit range of 24. 5%. 35% 46.40%, the average production limit ratio is 40%, the production limit range of class C enterprises is 46.48% 52.86%, the average production limit ratio is 50%, and the production limit range of class D enterprises is 56. 5%. 33% 69. 4%, with an average production limit of 60%. According to the above situation, the limited production capacity of blast furnace in autumn and winter is 24.8113 million tons, accounting for 42.51% of the blast furnace production capacity in autumn and winter. Combined with policy encouragement and supporting factors, the limited production capacity of blast furnace in autumn and winter is 19.7399 million tons, accounting for 33. 5% of the blast furnace production capacity in autumn and winter. 82%.

According to the statistics of the production capacity of all kinds of steel plants in the detailed statistical table of SMM steel and the statistics of the task of limiting production according to the wrong peak, it is concluded that the impact of production restriction according to the theory is as follows:

According to the calculation of SMM, the average production capacity limit ratio of ABCD steel mills in heating season is about 40%, while according to the latest investigation of SMM, the operating rate of steel mills in Tangshan area is about 85%. Therefore, after the implementation of the heating season production limit, the actual impact ratio is about 25%. If the implementation time of the production limit is from 15 November 2018 to 31 March 2019, the total impact of the production limit on pig iron production is about 12.81 million tons, resulting in a reduction of 20.49 million tons of ore demand. Specific follow-up steel plant implementation ratio, SMM steel will continue to track.