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With the tendency of foreign high-grade calcium carbonate materials entering into Chinese market, domestic technologies make great progress which speeds up the growth of processing kinds of calcium carbonate, and also make them develop towards the directions of diversification, specialization and elaboration to expand wider application fields. Next, let’s introduce the applications of limestone. 1. To produce Portland cement is the common use. Limestone can meet the requirements of cement raw materials through the stone crusher and grinding machine. 2. To be used as packing of plastics, paint, rubber, paper, ink and others in various production lines. Limestone can be processed into powder in 300-3250 mesh and plays its role fully. 3. To be used to produce heavy calcium carbonate product with the level of high-grade paper in coating. Fine, ultra fine and active heavy calcium carbonate is used widely in papermaking process. 4. To produce desulfurization absorbent. Desulfurization after limestone is crushed to 0-2mm, and the final reaction product is gypsum. Desulphurization mill machine for large power plant from Henan Hongxing has been used by many thermal power enterprises. This machine has mature process operation, high desulfurization efficiency and broad application scope. 5. After calcined and carbonized, limestone can produce light calcium carbonate product. 6. To be used to produce active lime and passivation lime. Through the lime kiln, limestone can produce active lime which is processed into passivation lime. In addition, after chemical process limestone can produce phosphate light calcium, internal and filling calcium, food industrial calcium additive, bulking agent and advanced toothpaste abradant, feed additives and so on. We can see that through the limestone applications limestone can be put into use in various fields after crushed and grinded. Limestone mill equipment from Henan Hongxing, such as fine mill machine and ultra fine mill machine, is mainly used for limestone, and our machine has the bright market. cement equipment:http://www.china-hxjq.com/p75.html mineral sand washer:http://www.china-mills.com/p9.html