subject: Relevant Intellectual About Your Familiar Limestone [print this page] 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,flotation cell,sand washing plant Welcome all of you to visit our official website.stone crusher plant:http://www.hxjq-crusher.com/17.htmlHenan Hongxing Mining Machinery Co., Ltd is a joint-stock mining machinery manufacturing enterprise integrated in scientific research, production and marketing. It is located at the High & New Technology Industries Development Zone of Zhengzhou,China with an area of 50 thousand m2 which includes 15,000 m2 of standard heavy duty industrial workshop. Equipments are more than 160 pieces, including large and medium sized metal processing, riveting and installing equipments. There are more than 660 workers including 80 administrators with secondary and senior occupational titles and engineering technicians. In order to promote the competitive strength, the advanced technologies have been introduced from America, Germany, Japan and Australia, which established the international advanced production line, first-class modern testing base as well as research centers of sand maker, mill and mine-selecting equipment. Scientific management, advanced processing technology and innovative manufacturing theory make the company become the mining machinery manufacturing and exporting base in China.
