Technique for synchronously recycling biomass and harmless chromium slag by aid of waste heat of blast furnace slag
A blast furnace slag and biomass technology, which is applied in the removal of solid waste, chemical instruments and methods, transportation and packaging, etc., can solve the problems of effective utilization of less heat energy, avoid secondary heat pollution, reduce the amount of carbon on the surface area, and improve the The effect of energy efficiency
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[0033] (1) Liquid blast furnace slag at a temperature of 1500-1700°C is poured from the slag tank to the inlet of the granulator, and after granulation, enters the inlet of the rotary reaction cooling device from the outlet, mixes with biomass, and pyrolyzes the biomass , then blast furnace slag and biomass pyrolysis coke are transported to the outlet of the rotary reaction cooling device, and discharged after being cooled by cooling water; the continuous input mass ratio of cooling water for cooling blast furnace slag to blast furnace slag is 1:4; biomass and blast furnace slag The continuous input mass ratio of 1:2;
[0034] (2) The cooling water in step (1) is fed from the outlet of the rotary reaction cooling device, sprayed onto the surface of the blast furnace slag, heated and converted into water vapor; the water vapor then flows in the opposite direction with the blast furnace slag and exchanges heat, and is transported to the rotary reaction cooling device The inlet e...
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