Superfine vertical mill

Hardness: because it is destructive testing, it can be used for ungrated raw stones or precious minerals. There are two types of hardness, one is absolute hardness, the other is Mohs hardness (a relative hardness).

Moth hardness: using ten common minerals as a standard to use mutual scraping to distinguish between hard and soft, customarily mineralogical or gemological use Moir hardness.

The moth hardness is divided into ten stages. Talc, gypsum, calcite, fluorite, apatite, feldspar, quartz, topaz, corundum, and diamond.

The object is the size of the aperture of the general characterization sieve, and its conversion formula is: cm=16/ mesh.

There are English and American systems. The English system refers to the number of holes in each square inch.

The comparison of the new superfine Raymond mill and the traditional Raymond Mill: Raymond mill, also known as Raymond mill, mill, mine mill, high pressure roller mill English full name: Raymond mill, is a kind of widely used grinding equipment. Raymond mill is a grinding equipment widely used in mines, cement plants and chemical plants. It is one of the important equipment for deep processing of non-metallic minerals. Because of its stable performance, high adaptability and high cost performance, Raymond mill has been widely applied to the processing of non-metallic minerals since it was introduced to China for more than 20 years. However, with the extensive development of non-metallic minerals in the application field of ultrafine powders, the demand for non-metallic minerals in downstream enterprises is getting higher and higher. In particular, we have higher requirements for product fineness. This makes the traditional Raymond grinding out of the heart. These problems of traditional Raymond mill have been plagued by mineral processing enterprises and equipment manufacturers. These problems are mainly manifested in:

1. the fineness of the product is low, and the fineness of the ordinary Raymond mill is generally below 500 mesh. These devices can only occupy the lower end of the powder application market.

2. mechanical failure rate is high, electricity consumption, noise, emission pollution.

3. the system efficiency is low, the separation effect of the collection system is not ideal, a lot of fine powder can not be effectively collected and repeated in the system, resulting in waste of power.

The design of the 4. main air duct air duct has been wrong. The larger particles in the material of the grinding area and the particles in the future and the grinded particles are often thrown into the tail of the worm box.