Relevant intellectual about your familiar limestone
Limestone, composed mainly of calcite, is a sort of carbonate rocks. It has been widely used in many fields such as architectural, metallurgical, chemical, light, food and petroleum industries and agriculture. It is a major component of cement, which is a popular modern building material of great importance in the national economy. In China, cement limestone ore refers to limestone and marble that are specially used for producing cement and listed separately in the mineral reserves table.
The mining industry of cement limestone has been developed with the cement industry. The Chinese cement industry was initiated in the period of 1886~1907, but meager 660,000 tons of cement was produced in 1949 and the annual mining capacity of limestone was only one million tons. After 1949, the cement industry began to flourish and over 6,400 cement enterprises had been established by 1997. In that year, the annual output of limestone was 513 million tons and the consumption was more than 400 million tons. There were over 100 large- and medium-sized enterprises producing high-grade and special cement and the output amounted to 20% of the total cement output of China. Besides, Taiwan Province reportedly produced 22.12 million tons of cement, 15.57 million tons of cement limestone and 18.16 million tons of marble in 1997.Henan Hongxing Mining Machinery Co., Ltd is the professional manufacturer of complete sets of mining machinery, for example,cone crusher,classifier Welcome all of you to visit our official website.sand washer supplier:http://www.crusher-machine.com/19.html
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