Solid Waste Treatment

 

BSIET dedicates to research and application of comprehensive utilization technology of blast furnace slag to help iron and steel enterprises realize sustainable and ecotype development target based on principle of "compact, high efficient, cyclical, energy saving, clean and digital" iron and steel plants.

 

Technical features:

 

  • Well proven and advanced vertical grinding process system is applied with characteristics of reliable and high productivity. It is not necessary to have heating up system. Heat-up, grinding and dressing process can be centrally completed in the vertical mill with simplified process flow, reduction of occupied land, low investment, low running and maintenance cost, and high system reliability.
  • Individual grinding process for slag can overcome issues of difficulty grinding, hard to grind fine, easy to grind agglomeration, over fine grinding which exists in mixture of slag and concrete agglomeration. It is beneficial to optimize production and operation parameters, reduce production cost and have maximum economic efficiency.
  • Individual grinding process for slag can adjust product fineness flexibly based on market demand. With increase of slag mini-powder added into concrete, the heat of hydration and harmful composition in concrete can be reduced to have favourable condition for improvement of concrete feature.

 

Application:


  • 600,000t/a slag extra fine grinding project for Beijing Shougang Jiahua Construction Material Co. Ltd. was put into production in 2004;
  • 600,000t/a slag extra fine grinding project for Qinhuangdao Shouqin Jiahua Construction Material Co. Ltd. was put into production in 2010;
  • Shougang Jintang 2x600,000t/a slag extra fine grinding project (all localized equipments for critical ones) was put into production in 2010;
  • Qian'an Shoujia Construction Material 900,000t/a slag extra fine grinding project;
  • Sanhe Shoujia Construction Material 2x600,000t/a slag extra fine grinding project;

 

Typical project:

 

600,000t/a slag extra fine grinding project for Qinhuangdao Shouqin Jiahua Construction Material Co. Ltd.

 


Since it was put into production in June of 2010, the equipment runs stably with stable product quality, and good result on water saving, energy saving and environment protection.

 

Qian'an Shoujia Construction Material 900,000t/a slag extra fine grinding project

 

 

This is different on process design of the conventional slag fine grinding production line. Product storage system of this project firstly adopts large scale slab storage house. The large scale slab storage house has advantages of large volume of specific storage unit, low investment, short construction period, simple practice, easy operation, high discharging ratio, etc.