Raymond Mill common sense

Time: 2015-01-26

Mohs hardness


Hardness: Because it is a destructive test, so the original unpolished precious stones or minerals before you can use it. Hardness scale has two categories, one is the absolute hardness, and the other is Mohs hardness (a relatively hardness). Mohs hardness: Ten to common mineral to scratch as standard with each other hard to distinguish what what soft, customary on mineralogy or gemology are used Mohs hardness. Mohs hardness of ten points. Talc, gypsum, calcite, fluorite, apatite, orthoclase, quartz, topaz, corundum, diamond.

 

Mesh pore size is generally characterized by a sieve, which is the conversion formula is: cm = 16 / mesh Head has English and American, British refers to the number of holes per square inch. Comparison of the new and traditional superfine Raymond Raymond: Raymond also raymond machine, mill, mine mill, high pressure suspension mill English name: Raymond mill, is a widely used milling equipment. Raymond is a widely used in mining, cement, chemical grinding equipment, is one of the important equipment of deep processing of non-metallic minerals. Because Raymond stable performance, adaptability, cost-effective, since the introduction of China 20 years ago, has been applied to the popularity of non-metallic mineral processing. However, with the development of non-metallic minerals are widely applied in the field of ultra-fine powder, the downstream business of non-metallic mineral products have become increasingly demanding. Especially for the product fineness have higher requirements. This makes the traditional Raymond appeared to be inadequate. Raymond tradition of such problems have been plaguing mineral processing companies and equipment manufacturers. These problems are mainly reflected in:

 

1. Product low fineness, the fineness of ordinary Raymond is generally 500 mesh or less, these devices can only be occupied by the lower end of the powder application market.
2. Mechanical failure rate, power consumption, and noise, large emission pollution.
3. The system efficiency is low, the separation effect of the product collection system is not satisfactory, a large amount of fine powder can not be effectively collected and recirculated within the system power waste.
4. Host bellows duct design errors, material into the grinding zone of larger particles and not enough time to comminuted particles are often thrown into a bellows gathered at the tail of the worm box, and continue to extend forward, so too gradually reduce the amount of wind, easy causing traffic jam, no powder or less flour, affecting production.