Comprehensive understanding of the use of bentonite
1. Bentonite use
Bentonite (montmorillonite) has good physical and chemical properties, can be used to purify the decolorant, binder, thixotropic agent, suspending agent, stabilizer, filling material, feed, catalysts, etc., is widely used in agriculture, light industry and cosmetics, pharmaceuticals and other fields, so montmorillonite is a use of natural mineral materials.
Bentonite can also be used as a waterproof material, such as bentonite waterproof blanket, bentonite waterproof board and its supporting materials, pro-mechanical fixing method of laying. Applied to the PH value of 4 to 10 of the underground environment, high salt content of the environment should be used after the modification of bentonite, and should be tested after use.
2. Calcium-based bentonite and sodium-based bentonite use what is the difference?
Sodium montmorillonite (or sodium bentonite) properties than calcium. The layer spacing d(001) of sodium bentonite is around 1.2nm. However, the distribution of calcium soil in the world is much wider than sodium soil, so in addition to strengthening the search for sodium soil is to modify calcium soil to make it sodium soil.
a. In drilling, the drilling mud suspension with high rheological and thixotropic properties is configured.
b. In machinery manufacturing, it can be used as casting sand and binder to overcome the phenomenon of "sand trapping" and "skinning" of castings, reduce the scrap rate of castings, and ensure the precision and finish of castings.
c. Used as paper filler in papermaking industry to enhance the brightness of paper.
d. Used as antistatic coating in textile printing and dyeing liquid, instead of starch sizing and printing coating.
e. In the metallurgical industry bentonite used as a binder for iron ore pellets, so that the pellet size uniformity, good reducing properties, which is the big use of bentonite, the bentonite used to sodium bentonite-based; in the petroleum industry, sodium bentonite used in the preparation of tar - water emulsion; in the food industry, sodium bentonite used in animal and plant oils for decolorization and purification, clarification of wines and fruit juices, stabilizers, etc. Beer; in the textile printing and dyeing industries Sodium bentonite used as filler, bleaching agent, anti-static coating, can replace starch sizing and do printing paste.
3. Calcium-based bentonite applications
Bentonite due to good physical and chemical properties, known as "universal" clay, can be used as a binder, suspending agent, thixotropic agent, stabilizer, purification and decolorant, filling material, feed, catalysts, etc., widely used in metallurgy, petroleum, foundry, food, chemical industry, environmental protection and other industrial sectors.
4. Bentonite powder production process
The main raw material for the production of bentonite powder is montmorillonite, montmorillonite powder production process should be used in the milling equipment, while the milling equipment for montmorillonite processing and production process is as follows.
Stage 1: the drying of montmorillonite raw materials
Montmorillonite raw materials according to the moisture content, through the dryer or to the mill through the way of hot air for the drying of raw materials.
Stage 2: Feeding of montmorillonite raw materials
After grinding and crushing, the small pieces of montmorillonite are sent to the storage hopper by elevator, and then fed into the grinding chamber of vertical mill for grinding by feeder.
Stage 3: grinding and grading
The montmorillonite powder micropowder after grinding by vertical mill (using ultrafine vertical mill equipped with multi-head ultrafine powder grading system) is graded by multi-head ultrafine powder grading system, and the unqualified micropowder powder is classified by grading machine and then returned to the main machine of vertical mill to be regrinded.
Stage 4: collection of finished products
Powder in line with the fineness of the airflow through the pipeline into the dust collector for separation and collection, the collection of finished powder through the outlet by the conveyor device to the finished product silo, and then unified with the powder loading tanker or automatic baler for packaging.
Mining crusher manufacturers, we have professional and technical personnel can provide users with project cooperation design, complete sets of production line configuration design, standard and non-standard design and manufacturing, equipment installation and commissioning after-sales service. Welcome to click on customer service to understand the price of equipment, production cases and other detailed information, 24 hours online free consultation.
