HomeCasesCase of fine particle ferrosilicon recovery in Xinjiang Zhongtai Chemical calcium carbide slurry

Case of fine particle ferrosilicon recovery in Xinjiang Zhongtai Chemical calcium carbide slurry

Object Introduction
Object Introduction
About the Project

Xinjiang Zhongtai Chemical is one of the largest chlor-alkali chemical companies in China. The company is mainly engaged in chlor-alkali chemical products such as polyvinyl chloride resin (PVC), ion-exchange membrane caustic soda, and hydrochloric acid. The total production capacity is 1.3 million tons of polyvinyl chloride resin and 750,000 tons of ion-exchange membrane caustic soda. In the process of wet PVC production of calcium carbide, a large amount of calcium carbide slurry is produced every day, and 2-3% of fine-grained ferrosilicon is contained in the calcium carbide slag. This project is our patent project, using our TPC-800 vertical continuous cyclone centrifuge to recover fine-grained ferrosilicon and residual carbon in calcium carbide slurry.

Method
  • The high-efficiency recovery technology is used to enrich and utilize the bottom-flow slag ferro-iron particles; it is required to design an automatic sorting device to replace the labor-intensive manual flushing and recycling method. Reduce labor intensity and effectively prevent potential safety hazards;
  • Using high-efficiency recovery technology-centrifugal re-election technology to enrich and utilize the overflow fine-grained ferrosilicon; reduce the wear of high-hardness impurities in the calcium carbide slag on the filter cloth and pipe valve system of the subsequent filter-filter section;
  • The jigging screening recovery system is used to separate the carbon particles in the calcium carbide slurry, recover the high-quality clean fuel and reducing agent, and realize the comprehensive utilization; in the technology of replacing the limestone with calcium carbide and producing cement clinker, in the calcium carbide slag the ferrosilicon particles have a direct impact on the output of the cement raw mill and the loss of the grinding body. The reduction of the ferrosilicon content can achieve better economic benefits and save a lot of energy and resources for the society
Solution