SECTION OF DISCHARGE GRATE FOR DEVICE FOR GRINDING SOLID MATERIALS AND DISCHARGE GRATE CONTAINING IT, DEVICE FOR GRINDING SOLID MATERIALS AND LINE FOR PROCESSING WASTES OF METALLURGICAL PRODUCTION Russian patent published in 2024 - IPC B02C17/18 C22B7/04 

FIELD: various technological processes.

SUBSTANCE: invention relates to a section of a discharge grate for a device for grinding solid materials and a discharge grate containing it, device for grinding of solid materials and line for processing of metallurgical production wastes. Discharge grate section for a device for grinding solid materials has an outer surface, an outer edge, an inner edge and side edges, wherein outer edge length is larger than that of inner edge, and the section is provided with through holes. Outer surface of the section has a section area A located near the outer edge, a section area C located near the inner edge, and a section area B located between the section area A and the section area C. At least 50% of through holes entering area A have width W_A and height H_A, at least 50% of through holes entering area B have width W_B and height H_B, at least 50% of through holes entering area C have width W_C and height H_C, wherein the following inequalities are satisfied: (W_A+H_A) > (W_B+H_B) (Inequality 1), (W_C+H_C) > (W_B+H_B) (Inequality 2), where values W_A, W_B, W_C, H_A, H_B, H_C are expressed in millimetres.

EFFECT: higher efficiency of metallurgical production wastes processing line, namely, in increasing the output of two target products: metal (metal flakes) and finely ground slag (mineral powder), providing the possibility of processing wastes larger than 10 mm without preliminary crushing, without the need to use a magnetic separator.

22 cl, 1 tbl, 9 dwg