Consideration on the Semi-Pilot Plant for Fluidizing Reduction of Pyrite Cinder

Study on pilot plant of fluidizing reduction furnace-II

Abstract

To seek for the optimum condition for fluidizing reduction, many tests were tried in a 100 mm dia. reactor which was heated by electric heater. Each test was contineous feeding operation within 60-70h.
Considered factors were height of overflow pipe, gas flowing volume, holding time, temper-. ature etc. It was concluded that the optimum condition can attain 1'5 as: gas excess ratio.
With these data, a semi-pilot plant is discussed.
Triple hearth furnace are recommended. Efforts must be added in a semipilot plant to develop next unknown technique.
1. Start-up of the triple hearth fluidizing reactor.
2. Steady operation of the triple hearth reactor.
3. Production of hot gas.
4. Heating up of are by surface combustion.