(Xianyang nonmetallic mineral research and design institute, Xianyang, Shaanxi 7 1202 1)
First, the content introduction
"Research on air separation technology and special equipment for broken mica" is a basic research and technical development project of National Building Materials Bureau (project number: 96-J-l 1) completed by our institute. According to the characteristics of broken mica and equipment manufacturing technology, based on the achievements of "impact superfine pulverizer" in our institute, suitable wear-resistant materials were selected, and the development of "φ450 crusher and vibrating airflow winnowing machine" and "hammer winnowing machine" was completed, and an industrial test production line was built in Lingshou mica General Factory in Hebei Province. The successful research of this subject provides special air separation technology and equipment for the development of mica resources, as well as special ultra-fine crushing and classifier, and also opens up a new way for other mica-bearing mines to recover mica.
Second, popularization and application
Hebei Lingshou Mica General Factory has built a demonstration line with an annual output of 3,000 tons of mica powder. After more than ten years of popularization and application, it has achieved good economic and social benefits.
Three. Identification, awards and patents
The research started from July 1996 to May 1998. Appraisal time1May, 998.