Garnet, a term of geology, is one of the main rock-forming minerals in the upper mantle. Garnets with good color and high clarity can become gems.

 

The hardness of garnet ranges from 6.5 to 7.5 Mohs hardness. Garnet has the characteristics of acid resistance, wear resistance, high temperature resistance, high melting point, high toughness, high grinding efficiency, high density, high strength, stable chemical properties, and dust-free operation.

 

 

The common garnets are identified as six types due to their chemical composition, namely Pyrope, Almandine, Spessartite, Andradite, Grossular, and the variants are tsavorite, hessonite and Uvarovite.

Garnet forms two solid solution series:

1. Rhodolite-Almandine-Spessartine and;

2. Calcium garnet-garnet-garnet.

 

 

 

Magnesia garnets are mainly produced in ultrabasic rocks and their residual slope deposits. Main origin: Russia, Norway, Czech Republic and Jiangsu, China;

Mafic garnets are mainly produced in countries such as the United States and Tanzania;

Almandine garnets are produced in metamorphic rocks and placers such as mica schist and hornblende gneiss, and are produced in Sri Lanka, Brazil, Madagascar, India and other countries;

The garnet is a product of skarn, but it is also found in the alteration zone of serpentinite and gabbro. For example, Kenya, Pakistan, Russia and China produce green garnet. The garnet is produced in Sri Lanka;

Spessartine garnets are produced in pegmatites, and some metamorphic rocks are also present. Gem-grade spessartine garnets are produced in Myanmar, Sri Lanka, Brazil and other countries;

Garnet is a product of schist and metamorphic limestone belts. It is brown and green. Demantoid and yellow garnet are produced in serpentinite, melanite is produced in alkaline-rich igneous rock, and it is produced in Russia and Congo;

Calcite garnet is the product of the interaction of gas-generated hot water solution with calcium-containing ultrabasic rocks, and is found in Russia and the United States.

 

Most gem-grade garnets are found in alluvial placers.

 

 

1. Garnet sand is a good abrasive, and it is also commonly used to replace silica sand in sandblasting.

2. After being mixed with high-pressure water, garnet is used for cutting steel and other materials in water jet cutter.

3. Garnet sand is also used as a water purification medium.

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

 

 

 

Garnet abrasive is also called garnet powder, also known as "jade sand" or "natural emery". To make garnet powder, you can use the following milling machine:

 

 

The most common mill for 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 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.

 

 

 

The 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.

 

 

 

 

 

The structure and grinding principle of HGM ultrafine 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.

 

 

 

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.