A kind of device and method for preparing wet grinding calcium carbonate
A technology of calcium carbonate and calcium carbonate powder, which is applied in fibrous fillers, grain treatment, dyeing physical treatment, etc. It can solve the problems of large equipment occupation space, large equipment investment, and cumbersome process, so as to save labor costs and improve production efficiency. , the effect of reducing the use of equipment
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Embodiment 1
[0039] like figure 1 , The present embodiment employs a single mill 5000L floor (the first mill 3) grinding, first TSP 325 mesh calcium carbonate powder supplied to the bunker through a gas flow through the powder from the screw conveyor 2 a first upper added grinder 3, wherein the zirconium silicate milling media beads is 1.8-2.2mm, powder added in an amount 4t / h, while 9 or grinding aid added water in the upper portion 3 by the aid of the first mill tank, using sodium polyacrylate as a grinding aid, is added in an amount by weight relative to the dry powder 0.5wt%, water added in an amount 2.2t / h, the slurry from the first mill 3 out directly into the first foam pump 4, and then enter the automatic after the blade 7 filters 8 into the finished product tank. The resulting slurry TSP filler level, wherein a particle size of less than 2μm content of 65%, a solids content of 64.5 wt% of viscosity 100cP.
Embodiment 2
[0041] like figure 2 , The present embodiment employs two 5000L mill floor (the first 3 and the second grinder mill 5) grinding series, wherein the first mill 3 grinding media 1.8-2.2mm zirconium silicate beads, 5 is a second grinder grinding medium is ceramic beads 0.8-1.25mm, the first TSP 400 mesh calcium carbonate powder supplied to the bunker through a gas stream, from the upper portion of a first grinder 3 by the screw conveyor 2 powder , powder added in an amount 4.5t / h, while the auxiliary tank 9 through a grinding aid or water are added above the first and the second mill 3 grinding machine 5, using sodium polyacrylate as a grinding aid, relative to the total amount of added 1.3% dry weight, total addition amount of water 1.75t / h, the first slurry directly into the mill from the first foam pump 3 out of 4, 4 pumps the first foam slurry is pumped into a second grinder 5, second foam pump 6 via a filter into the automatic blade 7 enters the product tank 8. The resulting...
Embodiment 3
[0043] like image 3 Shown, using three 5000L mill floor (the first mill 3, the second 5 and the third grinder mill 51) connected in series grinding mill wherein the first medium is from 1.8-2.2mm silicate 3 zirconia beads, a second grinder 5 is 1.4-1.7mm zirconium silicate milling media beads, the third mill 51 is 0.8-1.25mm ceramic beads as grinding media, the first TSP 400 mesh powder conveyed by air to calcium carbonate bunker 1, 2 powder was added by a first screw conveyor from the upper portion of the grinder 3, powder added in an amount 4.2t / h, while the auxiliary tank 9 through the grinder 3 in the first, second grinder 5 the upper portion 51 and a third mill grinding aid were added and water, using sodium polyacrylate as a grinding aid, the total addition amount was 2.0% by weight relative to the dry powder, the total addition amount of water 1.4t / h, the slurry from the first grinding 3 out of the machine after the pump 4 directly into the first foam, the first foam sl...
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Abstract
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