Bentonite Clay Powder Grinding Mill Machine

Bentonite clay powder grinding mill machine is the milling equipment for processing bentonite to fineness of 30~3000 mesh powder. Bentonite can be more widely used in various industries after grinding.

 

What is Bentonite?

Bentonite is also called bentonite clay or montmorillonite.
Bentonite is a non-metallic mineral with montmorillonite as the main mineral component. There are certain cations, such as Cu, Mg, Na, K, etc., in the layered structure of smectite, and the interaction of these cations with the montmorillonite unit cell is very unstable and is easily exchanged by other cations.

Therefore, it has good ion exchange. It has been applied in more than 100 departments in 24 fields of industrial and agricultural production, and there are more than 300 products, so people call it "universal soil".
 

What are the uses of bentonite?

Bentonite (also known as montmorillonite) is a versatile natural mineral material.
1. Montmorillonite has adsorption and cation exchange properties, and can be used to remove toxins from edible oils, purification of gasoline and kerosene, and wastewater treatment;

2. Montmorillonite has good water-swelling properties as well as dispersing and suspending and pulping properties, so it is used for drilling mud, flame retardant (suspended fire extinguishing).

3. Bentonite can also be used as a filler in the paper industry to optimize the properties of coatings such as adhesion, covering power, water resistance, scrub resistance, etc.;

4. Bentonite can replace starch for yarn sizing in the textile industry because of its good cohesive force. It saves grain and does not lint, and it does not emit peculiar smell after the paddle.

5. Bentonite (montmorillonite) because of its good physical and chemical properties, can be used as a decolorizing agent, binder, thixotropic agent, suspending agent, stabilizer, filler, feed, catalyst, etc., and is widely used in agriculture and light industry. And cosmetics, pharmaceuticals and other fields.

6. Bentonite can be used as waterproof material, such as bentonite waterproof blanket, bentonite waterproof board and its supporting materials. It is used in underground environments with a pH value of 4 to 10, and modified bentonite should be used in environments with high salt content.
 

How to process bentonite?

Bentonite is an aqueous clay ore mainly composed of montmorillonite, with hardness of 1 ~ 2 and density of 2 ~ 3g/cm.

The specific process flow of bentonite grinding is: bentonite ore - crushing - drying - grinding - finished product.

The massive bentonite is sent to the jaw crusher through the vibrating feeder for preliminary crushing, and the crushed material is screened by the vibrating screen. The materials that meet the requirements of grinding particle size are sent to the grinding mill for grinding, and then classified by the classifier. The bentonite powder with qualified fineness is sent to the cyclone powder collector through the pipeline for separation and collection, the finished product is sent to the stone powder bin through the discharge port, and the unqualified particles are returned to the mill for further grinding.

 

What equipment is used for bentonite grinding?

 
Maxing Feeding Size: 40 mm
Ouput Size: 613-33 micron (35-400mesh)
Capacity: 1-25 t/h
Applicable materials: Calcium carbonate, limestone, kaolin, limestone, calcite, marble, talcum, barite, gypsum, dolomite, bentonite mud, mica
Raymond Mill processes bentonite:
The feeder will send large bentonite to the jaw crusher for coarse crushing, and the coarse crushed bentonite materials will be sent to the impact crusher for medium and fine crushing by the belt conveyor. The impact crusher has a very good crushing effect on bentonite; The bentonite with qualified particle size after medium and fine crushing is sent to the storage bin by the bucket elevator, and the bentonite with unqualified particle size is transported back to the impact crusher for further crushing; The vibrating feeder will evenly and quantitatively feed the materials with qualified particle size into the Raymond mill for grinding. The Raymond mill discharge can be adjusted between 80-325 mesh, with high screening rate and fine finished products. The materials grinded by Raymond are sorted by the classifier at the top of the grinding chamber. The qualified materials are sent to the finished material pile, and the unqualified materials are returned to the grinding chamber to continue grinding, forming a closed loop.

Maxing Feeding Size: 20 mm
Ouput Size: 74-5 micron (200-2500 mesh)
Capacity: 0.5-45 t/h
Applicable materials: Calcium carbonate, limestone, kaolin, limestone, calcite, marble, talcum, barite, gypsum, dolomite, bentonite mud, mica, etc.

Maxing Feeding Size: 10 mm
Ouput Size: 74-5 micron (400-3000 mesh)
Capacity: 0.5-5.5 t/h
D97 < 4μm
D50 < 2μm
Applicable materials: calcite, marble, limestone, dolomite, barite, talc, kaolin, wollastonite, gypsum, feldspar, pyrophyllite etc.

 

What is the use of bentonite powder?

Bentonite powder has good physical and chemical properties, and has very strong characteristics of bentonite, adhesion, adsorption, catalysis, contact deformation, suspension, etc. after milling, it is commonly used as purification decolorizer, binder, thixotropic agent, suspension agent, stabilizer, filler, feed, catalyst, etc., and is widely used in agriculture, light industry, cosmetics, medicine and other fields. The ground bentonite can also be used as waterproof materials, such as bentonite waterproof blanket, bentonite waterproof board and its supporting materials.

 

Extended information:

There are many types of bentonite, such as: calcium-based bentonite, nano-based bentonite, paint grade, ceramic grade, compound fertilizer, feed grade bentonite, etc. To choose different bentonite for different purposes, generally pay attention to the physical index parameters of bentonite, such as: Glue price, blue absorption, whiteness, mesh, etc.

The properties of bentonite are closely related to the types of exchangeable cations between the layers. According to the types of main exchangeable cations between layers, montmorillonite is usually divided into calcium-based bentonite and sodium-based bentonite (artificial sodium bentonite).

Bentonite has adsorption and cation exchange properties, and can be used to remove toxins from edible oil, purification of gasoline and kerosene, and wastewater treatment; Specification: Whiteness > 70 Fineness: 325 mesh. It is used for drilling due to its good water-swelling properties as well as dispersing and suspending and pulping properties.

It can also be used as a filler in the paper industry to optimize the properties of coatings such as adhesion, hiding power, water resistance, scrub resistance, etc. Specifications: see the industry standard.

Due to its good wet adhesion, it is widely used in casting metallurgical pellets; specifications: see the national standard.

In conclusion, the properties of sodium bentonite (or sodium bentonite) are better than those of calcium. However, the distribution of calcareous soil is far wider than that of sodium soil in the world, so in addition to strengthening the search for sodium soil, it is necessary to modify the calcareous soil to make it a sodium soil.

Bentonite (montmorillonite) has good physical and chemical properties and can be used as binder, suspending agent, thixotropic agent, stabilizer, decolorizing agent, filler, feed, catalyst, etc. It is widely used in agriculture, light industry and cosmetics , medicine and other fields, so montmorillonite is a natural mineral material with a wide range of uses.

Process characteristics of bentonite

Cation exchangeability The cations in the montmorillonite crystal layer have exchangeable properties. Under certain physical-chemical conditions, not only Ca2+, Mg2+, Na1+, K1+, etc. can be exchanged with each other, but also H+, polynuclear metal cations (such as hydroxyaluminum ten trimer), organic cations (such as dimethyl dioctadecyl ammonium chloride) can also exchange cations between crystal layers.

Cation exchange is an important process characteristic of bentonite. Using this characteristic, bentonite is modified from calcium-based bentonite to sodium-based bentonite; activated clay, lithium-based bentonite, organic bentonite, pillared montmorillonite, etc. are prepared. product.
Determining the cation exchange capacity and exchangeable cations of bentonite ore is the main basis for judging the quality of bentonite ore and classifying the type of bentonite ore. The cation exchange capacity refers to the total amount of cations such as K+, Na+, Ca2+, Mg2+ adsorbed under the condition of pH 7, and the unit is mmol/100g soil. The English name of cation exchange capacity is Cation Exchange Capacity, abbreviated as CEC.

The greater the CEC value of bentonite, the greater its negative charge, the stronger its hydration, swelling and dispersing ability; on the contrary, the worse its hydration, swelling and dispersing ability.
 

WHO WE ARE?

SBM Ultrafine Powder Technology Co., Ltd.  is one of the premier manufacturers for equipment in the mining, grinding, coating,packing, recycling and process industries. 

With SBM Ultrafine Powder Technology unique knowledge and innovative solutions, SBM helps many customers improve their operational efficiency, reduce risks and increase profitability.

SBM Ultrafine Powder Technology products can be divided into crushing equipment, grinding   equipment,  drying equipment, screening equipment, conveying equipment and auxiliary equipment. 

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HOW TO BUY?

• 1. Engineering project design
• 2. Equipment purchasing and manufacturing
• 3. Engineering project construction
• 4. Installation and Commissioning service
• 5. After-sales service

 
 

WHICH MODELS CAN BE SELECTED FOR PROCESSING ULTRA-FINE POWDER?

HGM grinding mill: 74-5 micron(200-2500 mesh); D97=5 micron
YGM Raymond mill: 613-33 micron(30-325 mesh); D90=30 micron
CLUM vertical roller mill: 20-5 micron(600-3000 mesh); D50=2 micron D97=4 micron

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