Milling equipment is used to grind and process various materials, including silica sand, to a specific particle size range. The equipment can vary depending on the desired final product, but typically includes jaw crushers, hammer mills, ball mills, and rod mills.
For milling silica sand to a 20 mesh size, the most suitable equipment is a ball mill. Ball mills are commonly used in the manufacture of finer grinding stages of mineral processing. They are typically cylindrical and rotate at a relatively low speed, with steel balls as the grinding media. The length and diameter of the ball mill can vary depending on the desired capacity and fineness of the final product.
To achieve a 20 mesh size, the silica sand would be fed into the ball mill and ground to a fine powder. The grinding process would involve the continuous rotation of the cylinder, causing the steel balls to cascade and grind the silica sand particles. The size of the grinding media and the speed of rotation would be adjusted to achieve the desired particle size.
After milling, the silica sand would be classified using a vibrating screen or a hydrocyclone to separate the particles into different size fractions. The 20 mesh size fraction would be collected as the final product, while the coarser particles would be returned to the ball mill for further grinding.
In conclusion, milling equipment for 20 mesh silica sand typically involves the use of a ball mill. This equipment is designed to grind the silica sand to the desired particle size and produce a fine powder suitable for various applications.
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