Rotary mixing method for bentonite raw materials

Abstract

The invention discloses a rotary mixing method for bentonite raw materials. The rotary mixing method comprises the following steps of 1, crushing, 2, magnetic separation, 3, cleaning, 4, drying, 5, grinding, 6, screening, and 7, mixing. Deionized water, glycerol, triethanolamine, acetone and diethyl carbonate are mixed into a cleaning solution, and the raw materials are subjected to ultrasonic cleaning, so that impurities such as greasy dirt and soft flocks doped in the raw materials are thoroughly removed, the internal structure of bentonite is improved, the working reliability of bentonite is improved, and through magnetic separation and vibration screening treatment, the residue of the feldspar, the quartz, the christobalite, the bayerite and other miscellaneous ores in the raw materials is reduced, the montmorillonite content in the raw materials is increased, the water absorption expansibility of the bentonite is ensured, the dehydration strength of the mixing method is enhanced through the dual drying treatment of drying and rotary mixing, and the water content of the bentonite is ensured to be reduced to the high quality level; and the quality of the bentonite is improved.

Description

technical field [0001] The invention relates to the technical field of bentonite production, in particular to a rotary mixing method for bentonite raw materials. Background technique [0002] The raw material of bentonite refers to a kind of clay or clay rock type mineral raw material whose montmorillonite content reaches the available level and is used for preparing bentonite. Bentonite has good water swelling properties, high fire resistance, cohesiveness, adsorption, catalytic activity, plasticity, suspension, dispersibility, thixotropy, lubricity and cation exchange properties, and is widely used in agriculture, light industry, Cosmetics, pharmaceuticals and other fields are important mineral raw materials in the field of metallurgy. At present, the industry mainly prepares bentonite by mixing montmorillonite and other auxiliary materials through the method of rotary mixing. [0003] However, most of the traditional rotary mixing methods of bentonite raw materials have...

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Problems solved by technology

[0003] However, most of the traditional rotary mixing methods of bentonite raw materials have the following problems: First, the cleaning force is insufficient, and impurities such as oil and hair shavings mixed in the raw materials cannot be completely removed, which destroys the internal structure of bentonite and reduces the work of bentonite. Reliability; second, without purification treatment, there are too many miscellaneous ores such as feldspar, quartz, cristobalite and barley stone, which reduces the content of montmorillonite and affects the water absorption and expansion of bentonite; third, the dehydration strength Insufficient, it is difficult to reduce the water content of bentonite to a high quality level, which inevitably affects the quality of bentonite

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