2013年7月14日星期日

Vibrating Screen Application Examples - light calcium screening




    School called calcium carbonate light calcium, also known as precipitated calcium carbonate, light calcium short. Use is widespread, then the light calcium screening is how it happened? Light calcium vibrating sieve it?

    Light calcium limestone and other raw materials is burnt to generate segment lime and carbon dioxide with water to generate digest lime milk of lime (calcium hydroxide, the main component), carbonation lime with carbon dioxide to produce calcium carbonate precipitate, dehydration, drying and grinding system. Or by a calcium chloride, sodium carbonate and calcium carbonate precipitation metathesis reaction, dehydration, drying and grinding system. Precipitated calcium carbonate sedimentation volume of 2.4-2.8mL / g. Normal Light sufficiently dispersed particles of calcium in the case was open pit shape, diameter of about 5 ~ 12μm, the short diameter of 1 ~ 3μm, the average powder diameter of 2 ~ 3μm. However, due to end after surface treatment, in light calcium build and dehydration, drying, particles tend to agglomerate together to form as many grapes whirring like aggregates, and therefore the national standard for the quality of light calcium requirements only from 125μm and 45μm sieve objects up to judge, and not directly reflect the true particle size and distribution.Circular vibrating screen

    The role of calcium carbonate: the proportion of calcium carbonate light calcium particle size is small, the proportion of oil absorption calcium carbonate, prices high proportion of calcium carbonate. They are commonly used in paint filler, preferably with use. Light calcium in subsidence better, but greater than the light absorbing calcium, calcium is also heavier price generally more expensive, but the stability is not as good as TSP though, but still have the stability, even exterior paint, its application amount is also very big! Typically used as a filler, widely used in artificial floor tiles, rubber, plastics, paper, paint, paints, inks, cables, building supplies, food, medicine, textile, feed, toothpaste and other daily-use chemical industry, as filler serve to increase product volume, lower production costs.Sand screening machine

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