Where Q-commodity waste and scrap quantity; лi-planned demand for non-ferrous metals and non-ferrous materials in enterprises, departments; content of non-ferrous metals in materials consumed by Ci-(%); Ki - the amount of waste generated (units); i- the quantity of non-ferrous metal consumables (i = 1, 2, 3..., n) containing the amount of resources to be calculated; M j - the overhaul of equipment and departmental maintenance Planned demand for non-ferrous metals and materials containing ferrous metals (tonnes); C j - quantity of color metals contained in materials used for maintenance (%); K и - utilization factor for maintenance-containing materials for ferrous materials (units) number); K п - during use of fixed assets nonferrous loss coefficient (in parts); J-consumption for the number of non-ferrous metal-containing material maintenance (j = 1,2,3, ..., m ); P l - The amount of non-ferrous metals (tons) in the fixed-capacity fixed-income and mobile capital that are scrapped; l- constitutes the amount of scrapped fixed assets and current assets, (l = 1, 2, 3, ..., γ).
The demand for non-ferrous metals (Î i, Mj) is reflected in the material technology supply plans of various companies and sectors. Q is based on the amount of scrapped fixed assets and current assets, the amount of non-ferrous metals in fixed assets and current assets, and the irreparable loss of non-ferrous metals during the use of fixed assets and current assets. Calculation of non-ferrous metal content (Ci) in consumer materials, including tungsten, cadmium , cobalt , molybdenum , and mercury . The net weight is calculated for the contents of aluminum , magnesium , copper , nickel , tin , lead , titanium , zinc and their alloys.
The amount of commodity resources for the measurement of waste non-ferrous metals must be based on theoretical basis and advanced waste production quotas. The amount of waste generated shall be calculated in accordance with all production processes using non-ferrous metals. According to the design level of technology, process and production organization, this quota should be the limit allowable index of waste production. The structure of non-ferrous metals (smelting alloys, production of rolled materials, cables, machining, etc.) has a decisive influence on the calculation method of the amount of waste generated. [next]
For example, when plating metal, welding, and extracting compounds, this indicator is obtained by the following formula:
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