|Technology and equipment for metal waste recycling|
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Technology and equipment for metal waste recycling
The proposed technology for metal waste recycling includes two stages:
Both stages of the process are implemented consistently with one technological unit – tilting rotary melting furnace.
Depending on the process stage reducing or oxidative atmosphere is created in the furnace by adjustment of «gas (or liquid fuel) – air» proportion. Temperature control is conducted by fuel supply varying and with oxygen enrichment (in the case of iron-carbon alloys recycling). Rotary unit provides processing of almost any metal waste (Al, Zn, Cu, Pb, Fe, etc.) and in any state including highly oxidized: from lump scrap to swarf, including highly oxidized (scale, metallurgical dust) and contaminated waste (shavings from metal-cutting devices) without their preliminary preparation.
Furnace lining, burners’ power capacity, furnace operating capacity and its overall dimensions are chosen depending on the type of recycled wastes and the required performance. Melting units with the capacity of melt from 0,2 up to 1,5 m3 and melting time from 1,5 to 3 hours are developed at the present time. Estimated cost of aggregates from 50000 to 150000 euro.