11 types of grinding equipment commonly used in the non-metallic mineral processing industry (2)

Prominer is going to take you to know 6 more types of grinding mill for non-metallic mineral grinding industries:


Stirring mill refers to a type of ultra-fine grinding equipment composed of a static cylinder filled with grinding media and a rotating stirrer. The fineness of the product can reach below 1μm.

Performance characteristics:

The use of high speed, high media filling rate and small media size achieves extremely high power density, which greatly shortens the grinding time of fine materials. It is the most energy-efficient and promising equipment among ultra-fine grinders. Large-scale applications have two major problems: small processing capacity and high wear costs.

Scope of application:

It is suitable for ultrafine grinding of non-metallic minerals, pigments, ceramics, papermaking, coatings, chemical products, etc., such as kaolin, talc, mica, calcium carbonate, wollastonite, zircon sand, etc.

7.Highpressure roller mill

Compared with the traditional crushing ball mill system, the high-pressure roller mill has significant efficiency and energy-saving effects, and is known as a breakthrough in crushing engineering.

Performance characteristics:

Compared with traditional crushing and grinding equipment, the high-pressure roller mill has high crushing efficiency, low energy consumption, good wear resistance, and can handle materials with high water content. It has compact structure, small size and light weight, which is convenient for system transformation. Moreover, it is convenient to operate and maintain, easy to realize online monitoring and automatic control, and the production environment is good.

Scope of application:

The high-pressure roller mill can be used for the pulverization of cement raw materials and clinker, blast furnace slag, limestone, coal and other brittle materials. It can also be used for the pulverization of iron ore, manganese ore, lead-zinc ore and polymetallic ore with higher hardness. It forms a closed circuit with the ATP vortex superfine classifier, which can be used for fine crushing and ultrafine crushing of limestone, dolomite, magnesite, zircon sand, etc.

8.Sand mill

The sand mill is another form of agitating mill. It is named after the initial use of natural sand and glass beads as the grinding medium. It can be divided into two types: open type and closed type. Each type can be divided into vertical and horizontal.

Performance characteristics:

The sand mill has high efficiency dispersion and strong crushing effect, intensive grinding energy and high production efficiency, but the separation of small size grinding media is one of the most difficult problems in the development of sand mills.

Scope of application:

It is suitable for ultra-fine grinding of low to medium hardness materials such as metallurgy, non-metallic minerals, printing inks, coatings, chemicals, ceramics and new materials. The crushing effect of high hardness materials such as zircon sand and abrasives is just ok.

9.Vibration mill

Vibration mill is a fine grinding and ultra-fine grinding equipment that uses grinding media (spherical or rod-shaped) to impact, friction, and shear materials in a high-frequency vibration cylinder to crush materials. It can process an average particle size of 1μm or even less 1μm ultra-fine powder products, it is relatively easy to obtain sub-micron products for brittle substances.

Performance characteristics:

Compared with the rotating cylinder ball mill, the vibration mill has the advantages of high grinding media filling rate, high grinding strength, high grinding efficiency, processing capacity more than 10 times larger than that of the same capacity ball mill, simple structure, flexible and convenient operation; by adjusting the vibration amplitude, Vibration frequency, media type, ratio and media diameter can process a variety of products with different particle sizes and particle size distributions, including coarse grinding, fine grinding and ultra-fine grinding. However, large-size vibration mills require higher mechanical strength for mechanical parts (springs, bearings, etc.).

Scope of application:

It is suitable for ultrafine grinding of non-metallic minerals such as barite, tremolite, kaolin, coal powder, graphite, ferroelectric materials (such as magnesium titanate), fine ceramic raw materials, chemical raw materials, pigments, etc.

10.Colloid mill

The colloid mill is a new type of wet ultrafine processing equipment, which is suitable for all kinds of emulsification, dispersion, crushing, and grinding. The processed product has a particle size of several microns to less than 1 micron.

Performance characteristics:

It can crush, disperse, uniformly combine, and emulsify particles, aggregates or suspensions in a relatively short time; because the gap between the two grinding bodies can be adjusted (the smallest can be less than 1μm), it is easy to control the product size; structure It is simple, convenient to operate and maintain, and has a small footprint; because the gap between the fixed grinding body and the high-speed rotating grinding body is extremely small, the machining accuracy is high.

Scope of application:

Suitable for food (jam, fruit juice, protein, dairy products, beverages, etc.), pharmacy (pulping, nutrient solution, Chinese patent medicine, paste medicine, etc.), daily chemical industry (toothpaste, cosmetics, detergent, etc.), chemical industry (paint , Coating lubricant catalyst, etc.), emulsified asphalt, coal flotation agent, ceramic glaze, explosives, etc. ultrafine grinding processing.

11.High-pressure jet mill

This type of equipment uses the strong impact force of the high-pressure jet and the cavitation effect after the pressure is suddenly reduced, so that the material is crushed due to the impact and bursting effect. The average particle size of the product can be adjusted in the range of 1-20μm.

Performance characteristics:

The air flow and the material enter the crushing chamber by way, so the nozzle and the crushing chamber are less worn.

Scope of application:

It is suitable for wet ultra-fine crushing or peeling of materials below medium hardness, such as kaolin, mica, illite, etc., as well as ultra-fine crushing processing of chemical raw materials and health foods.

Prominer has the ability to manufacture and provide different types of grinding mill equipment for various non-metallic processing industries.




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