Method for reducing abrasion to bentonite gel extraction centrifugal machine from silicon particles

Abstract

The invention aims at providing a method for reducing abrasion to a bentonite gel extraction centrifugal machine from silicon particles. After classification is conducted through a hydrocyclone and ahydraulic classification machine, the content of the silicon particles entering the centrifugal machine is reduced by 30%, and the granularity of the impurity particles is reduced to 44 microns from 150 microns. Compared with a traditional method, the traditional classification granularity is commonly 100 meshes, namely 150 microns; the hydrocyclone and the hydraulic classification machine are adopted for classification, and the classification granularity can reach 325 meshes namely 44 microns. After bottom flow of the hydrocyclone is classified through the hydrocyclone, the fine particles inoverflow return to pulping work, and the bottom flow is the silicon particles. The service life of the centrifugal machine is prolonged, the treatment capacity of the centrifugal machine is improved,and the extraction rate of gel minerals in the bentonite is guaranteed; meanwhile, the separation factor of the centrifugal machine can be improved, and accordingly high-quality inorganic gel productscan be produced; and the production cost is reduced, and the production capacity of a production line is improved.

Description

technical field [0001] The invention relates to a method for optimizing the process of bentonite inorganic gel, in particular to a method for reducing the wear of siliceous particles on a centrifuge for extracting bentonite gel. Background technique [0002] At present, bentonite inorganic gel is extracted by drying the raw ore, dry grinding to 100 mesh, or wet pulping, hydrocyclone classification, and the separation particle size is 100 mesh, and then enters the centrifuge to extract the gel. Inorganic gel was obtained. Drying and dry milling technologies require drying and grinding to consume heat and electricity, and the cost of milling is 150-200 yuan / ton of raw ore. If the siliceous particles are finely ground, the cost of grinding will increase sharply; Method, hydrocyclone classification Due to the low classification efficiency of the hydrocyclone, the fine particle classification causes the loss of bentonite colloid in the underflow. Usually, 100 mesh coarse particl...

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Problems solved by technology

Drying and dry milling technologies require drying and grinding to consume heat and electricity, and the cost of milling is 150-200 yuan / ton of raw ore. If the siliceous particles are finely ground, the cost of grinding will increase sharply; Method, hydrocyclone classification Due to the low classification efficiency of the hydrocyclone, the fine particle classification causes the loss of bentonite colloid in the underflow. Usually, 100 mesh coarse particle classification is used. The upper limit of the particles entering the centrifuge in the above two methods is 150μm, due to the high speed of centrifuge classification, the siliceous particles will seriously wear the separation blade of the centrifuge

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