China cement limestone mining of large, second only to 1996 the annual output of coal ranks No. 2 in the country minerals in the CPI. Most of the large and medium-sized cement plants have more than 70 self-prepared mines, which is equivalent to a workshop of a cement plant rather than an independently operated mining enterprise. Therefore, the scale of mining depends on the production scale of the cement plant. The quality requirements of cement limestone raw materials are strict. The limestone secondary products need to be used together with the first grade products. The mining department is required to use low grade ore. Various cement limestone mines adopt many measures, such as large pre-homogenization yards and multiple horizontal The use of platform mining, computer-based medium and long-term ore blending plans, rich and poor, and other applications to expand low-grade ore. The following is a brief description of the mining of limestone in large and medium-sized cement plants.
The vast majority are open-pit mining, and only some small mines in Fujian Province are underground. The vast majority of open-pit mining mines are open-pit mining on hillsides. Some large mines built in the 1950s and 1960s, because the resources on the ground are close to being harvested, the newly built mines are often far away from the cement plant, with large investment and high cost. In the case of reliable resources, it is a solution that can be considered in the development of the original mine from open pit mining to open pit mining. Luoyang cement succeed as mine iron gate limestone mine is to use this program, now completed, with good results.
The division of mining scale is shown in the table below.
This device is a special device to cut steel strip rolls into strips with a certain width. It is mainly used for decoiling cutting into strips and coiling of silicon steel sheets and thin steel plates and is applicable to processing and production of plate sheets for transformers, motors and transformers.
Slitting line,Shear Cutting Machine,Steel Strip Shearing Line,Automaic Shearing Line,Shearing Steel Strip Machine
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