Titanium dioxide airflow crushing method and apparatus
A technology of jet pulverization and jet pulverizer, which is applied in chemical instruments and methods, treatment of dyed organosilicon compounds, treatment of inorganic pigments, etc., can solve the problems of difficult measurement, affecting the amount of organic treatment agents, and affecting the pigment performance of titanium dioxide products. , to achieve the effect of full contact with the material and improve the dispersion performance
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[0041] Such as figure 2 with image 3 As shown, the base material of the method of the present invention is used for jet pulverization: the jet mill and dust collection system are preheated with superheated steam until the system is stable, and at the same time, the base material inlet on the long feed pipe and the on the steam main pipe are opened. Organic treatment agent feed pipe. The base material is fed into the long feed pipe through the feed screw, and the organic treatment agent is injected into the steam header through the metering pump and the Venturi principle. A part of the organic treatment agent enters the crushing chamber with the feed steam, and the other part is crushed. The steam enters the crushing cavity. Maintain crushing steam pressure 1.5MPa, feeding steam 1.0MPa, bag filter temperature 200℃, gas-solid ratio 2.0, organic treatment agent / TiO2=0.005 (mass ratio), feed rate of jet mill 2.0t / h, and the system runs stably to Produce 2000t ...
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