JUSTIFICATION OF POSSIBILITY OF PROCESSING ANTHRACITE USING CONTINUOUS-ACTING CENTRIFUGAL MACHINES

VBTCLQ

Abstract

Processing coal and coal industry waste is an urgent scientific problem. The equipment involved in enterprises is becoming obsolete, it needs to be replaced and modernized in a timely manner. In order to determine the possibility of using centrifugal equipment, a study was conducted of the influence of the properties of various materials undergoing further processing on the efficiency of their use and interaction with process equipment. In this case, the influence of the pro­perties of anthracite coal chips on the processing process and its further use is considered. Research into these processes is important to ensure efficient use of resources, equipment and reduce negative environmental impacts. Four tasks were set and solved. As a result of the work, graphical dependences of the moisture content of anthracite on its bulk density, on the coefficient of its external friction, on the flowability criterion, on the power criterion, as well as a graph of the dependence of the flowability criterion on the power criterion were obtained. Analyzing the data obtained, we can give recommendations on the moisture content of anthracite chips; it should be in the range from 8% to 13%; at lower humidity, dusting of the material begins, and at higher humidity, the material begins to exhibit adhesive properties to the surface of the equipment. Bulk density should be in the range ρ=630…820 kg/m³. Recommendations on the technical parameters of the equipment are also given. In conclusion, it was concluded that this type of equipment can and should be used in modern technology for processing anthracite chips for its enrichment with subsequent briquetting in order to reduce the cost of the finished product.