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Garnet Powder Grinding Mills

Source:nclirik Posted:2021-10-27


Garnet abrasive, also known as "Jade Sand" or "Natural Emery", has strong hardness and good acid and alkali resistance. It is an island-like structure of aluminum (calcium) silicate. The chromosomes of gray, red, green and white selected by high-purity magnetic are currently newly developed three-dimensional spray wall paint, and it is also the only glass shell factory that can make color shell sandblasting wear-resistant materials. Because of its many internal chemical molecules , Good chemical stability and other characteristics. It is made of quartz sand, petroleum coke (or coal coke) and sawdust through high temperature smelting in a resistance furnace.


The chemical composition of different types of garnets varies greatly, and some types of atomic chemical bonds are stronger than others. Therefore, the hardness range exhibited by these mineral groups will vary from about 6.5 to 7.5 Mohs hardness. Among them, the harder types such as Al-Al garnet are often used as abrasives.

Place of Origin

Sri Lanka, India, Madagascar, the United States, China and other countries.

Garnet powder

Garnet powder is a micron-level natural abrasive. It is produced based on the natural characteristics of iron-aluminum garnet, such as high hardness, high density, good toughness, and acid and alkali resistance, and is produced through advanced process control.

Garnet powder
Garnet powder

Micronized abrasives refer to abrasives with a particle size of less than 63μm. The classification method and product requirements are different from those of conventional fine powders. It requires the separation of mixed particle size materials into a series of narrow-grained products with uniform particle size to meet different requirements. . According to its properties and uses, it can be divided into ordinary micronized abrasives and superhard micronized abrasives. Among them, ordinary micronized abrasives can be divided into three series: corundum, silicon carbide and natural abrasives. Garnet micronized abrasives are natural abrasives in ordinary abrasives.

Garnet abrasive is a kind of natural non-metal abrasive, which is selected from the iron-aluminum garnet rock mine with the highest hardness of garnet. It is mostly used for ultra-precision grinding and casting in the machinery industry, polishing and grinding of precision workpieces, CRT glass bulbs, and glass products, and high-precision cutting.

Characteristics of garnet powder (garnet abrasive)

Garnet abrasives have the characteristics of high melting point, high specific gravity, high density, acid resistance, wear resistance, high temperature resistance, high strength, stable chemical properties, high toughness, high grinding efficiency, and dust-free operation.

The main uses of garnet sand

1. Sandblasting and rust removal of steel structures, hulls, bridges, etc.;

2. Waterjet cutting of metal, stone, glass, etc.;

3. Filter media for chemical, petroleum, pharmaceutical and water treatment;

4. Grinding of marble, optical lens, glassware, leather and other materials;

5. Raw materials of grinding wheel, whetstone, emery cloth and sandpaper;

6. Wear-resistant materials such as highway pavement, airstrip, wear-resistant rubber, non-slip paint, etc.;

7. Widely used in the field of construction industry, high-grade real stone paint, exterior wall decoration, interior decoration, noble and elegant temperament. Ideal new non-metal wear-resistant floor aggregate.

Garnet Powder Grinding Mills


Raymond Mill

Raymond mill
Raymond mill is the most common grinding mill.
Raymond mills has a wide range of applications and is cost-effective. It is an entry-level product for garnet mills. It can process 40-325 mesh garnet powder. According to the number of rollers, Raymond mills can be divided into 3R, 4R, 5R and 6R grinding mills.

The scope of application of Raymond mill This machine is mainly used for barite, calcite, potash feldspar, limestone, talc, white stone, gypsum, etc. Non-flammable and explosive mineral products with Mohs hardness not greater than 9.3 and humidity below 6%.

The working principle of the Raymond mill is that the grinding roller is tightly rolled on the grinding ring under the action of centrifugal force, and the material is scooped up by the spatula and sent to the center of the grinding roller and the grinding ring. The material is broken into powder under the action of the grinding pressure, and then Under the action of the fan, the powdered materials are blown up and passed through the analyzer. The materials that meet the fineness requirements pass through the analyzer, and the materials that cannot meet the requirements return to the grinding chamber to continue grinding, and the materials through the analyzer enter the cyclone separator for separation and collection. The exhaust air adopts industrial filter cloth to isolate the exhaust air into powder at one time.

High-pressure Suspension Roller Mill

High-pressure Suspension Roller Mill
High-pressure suspension roller mill is an upgraded product of the ordinary Raymond mill. The working principle of the high-pressure suspension roller mill is similar to that of the Raymond mill, but the grinding device is equipped with a spring with a pressure of 1000-1500 kg.

Under the same power conditions, the output of the high-pressure suspension roller mill is 10%-20% higher than that of the ordinary Raymond mill, and the fineness of the ground material is finer and the dust is less.

HGM Ultrafine Grinding Mill

HGM Ultrafine Grinding Mill
The structure and grinding principle of HGM ultrafine grinding mill are quite different from Raymond mill and high-pressure suspension roller mill. The HGM ultra-fine mill adopts a multi-layer grinding ring (3-4 layers) structure, with the number of grinding rollers ranging from 18 to 32. The multi-level grinding structure enables HGM ultra-fine grinding to process ultra-fine powders of 150-3000 mesh, which is the best choice for ultra-fine powder processing.

The working principle of HGM ultra-fine pulverizer:

Main motor of the pulverizer drives the main shaft and turntable to rotate through a reducer or belt. The roller pins on the edge of the turntable drive dozens of grinding rollers to roll in the ring raceway.
The large pieces of material are crushed into small particles by the hammer crusher and then sent to the storage bin by the elevator, and then through the vibrating feeder and the inclined feeding pipe, the materials are evenly sent to the bulk tray on the upper part of the turntable.

The material is scattered to the periphery of the circle under the action of centrifugal force, and falls into the raceway of the grinding ring, and is impacted, rolled, and ground by the ring roller. After the processing of the three-layer/four-layer ring, it becomes powder. The high-pressure fan is suctioned. The outside air is sucked into the machine, and the crushed materials are brought into the powder concentrator. The rotating impeller in the powder concentrator makes the coarse materials fall back and regrind. The fine powder that meets the requirements enters the cyclone powder collector with the airflow and is discharged by the discharge valve at the lower part of the cyclone as the finished product. The airflow with a small amount of fine dust passes through After the pulse dust collector is purified, it is discharged through a fan and a muffler.

Shanghai Clirik Machinery Co.,Ltd. specializes in the production of garnet grinding equipment, which is widely used in metallurgy, mining, chemical, building materials, coal, refractory materials, ceramics and other industries. The main products are Raymond mills, superfine mills, superfine vertical mills, etc. Welcome to leave a message online or WhatsApp us : +8613512155195.
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