New Design Mining Ball Mill / Ball Mill for Ceramic / Sand Mill and Ball Mill Machine Price
Ceramic ball mills are a type of ball mill and are used in the size reducing or milling of hard materials such as minerals, glass, advanced ceramics, minerals for ceramics and semiconductor materials down to 1 micron or less. The residence time in ceramic ball mills is long enough that all particles are given the same treatment and result in a narrow particle size distribution. The ceramic is 90%-96% aluminum oxide (alumina) brick, which is very hard (9 on the Mohs hardness scale) and will not contaminate most products. Ceramic ball mills are simple in design and consist of horizontal cylinder lined with 1.5” to 2” thick alumina brick. The slow rotating vessels is half filled alumina grinding media ¼” to 1.5” in diameter and as the vessel rotates and the media is lifted and cascades down, the particles are milled between the grinding media by the many impacts.
Ceramic ball mills have the advantage of being self-contained so operators are not exposed to the milled product. Ceramic ball mills can be used equally well for wet or dry grinding. In the case of wet grinding, the particles are also being dispersed in the liquid medium as the particles are reduced in size. Ceramic ball mills can be fully jacketed to maintain temperatures of heat sensitive products – through the liner is thick, alumina has a very high heat transfer coefficient. Ceramic ball mills scale up well and actually improve in performance with increasing diameter. Ceramic lined mills are available in sizes from laboratory scale (also called milling jars) as small as 0.1 usg to large 5,000 gallon mills. Other mills are available with liners made from made natural rubber or polyurethane.
Ceramic ball mill is horizontal cylindrical rotation device, driven by brim gearwheel. There are two chambers and grid. Material goes into the first chamber through the feeding inlet. Inside the first chamber, there are stage liners and ripple liners as well as steel balls. The shell rotates so as to generate electricity, and this force brings ball to a certain height and then balls drop down by gravity, the impact is the grinding force to the material. After the primary grinding, materials go into the second chamber through segregate screen. In the second chamber, there are flat liners and steel ball, after the secondary grinding, material is discharged from the discharging.
Ceramic Ball Mill Features:
Benefits of Tumble Milling:
HIGH EFFICIENCY – Due to the relatively slow rotational speed but large mass of media, more of the energy goes into milling and less wasted as heat.
NARROW PARTICLE DISTRIBUTION – Solids milled in tumble mills are normally so fine and consistent in size that it’s rare to require classification.
REPEATABLE RESULTS – Mill operating parameters including rotational speed, media size and milling duration can be independently controlled with known effect on the final results.
LOW TEMPERATURE – Because of the high efficiency of milling and low heat generation, the solids will not be exposed to high temperatures. For extremely heat sensitive products, cooling jackets can be provided on the mill cylinder.
CHEMICAL CONTAINMENT –Solids are sealed and contained inside the mill, protecting the environment and operators.
PREDICTABLE SCALE UP – Scale up from small to large mills is very predictable. Ball milling is one of the few unit operations that actual improve in performance and efficiency with increasing size. The ABBE Slice Mill is the same as the product mill and can replicate all mill operating parameters but with very little product.
Materials: High Alumina Brick Lining
Sand Mill Technical Specifications: