Flotation technology of coal gasification fine slag
A technology of coal gasification and fine slag, applied in flotation, solid separation and other directions, can solve the problems of pollution, waste of energy, consumption of large cultivated land and so on
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[0025] Combine below figure 1 Describe its specific implementation, a kind of flotation process of coal gasification fine slag, comprises the following steps:
[0026] 1. Coal gasification fine slag enters the pre-processor through belt conveyor or bucket elevator, add 0.05% potassium persulfate, add 0.01% ferrous sulfate heptahydrate, and add water to make the slurry concentration of coal gasification fine slag 20 %, adjust the pH value between 2-11, and the residence time is 15 minutes.
[0027] 2. Remove particles larger than 0.5 through the drum slag separator (rotary sieve).
[0028] 3. Enter the first after-preprocessor, add the diesel oil of 0.5% (diesel oil / slurry weight percent); Then enter the second post-processor and add 0.5% (secondary octanol / slurry weight percent) secondary octanol .
[0029] 4. Coal gasification fine slag slurry and reused filtrate enter the mixing tank at the same time to reduce the concentration of the slurry to 10%. After stirring evenly,...
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