Comprehensive utilization method of sandy kaolin tailings containing tourmaline, muscovite and quartz sand
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A technology of kaolin tailings and quartz sand, applied in recycling technology, solid separation, mechanical material recovery, etc., can solve secondary pollution of water quality, soil and air, waste of valuable minerals, and failure to achieve full comprehensive utilization of secondary resources and other issues, to achieve the effect of improving comprehensive recycling rate, high economic and social benefits, and realizing zero emissions
Active Publication Date: 2021-03-12
SHANDONG HUATE MAGNET TECH
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my country is a big kaolin producing country, and its kaolin mineral resources rank among the top in the world. The soft kaolin and sandy kaolin tailings produced every year occupy a large amount of valuable land resources, resulting in a serious waste of valuable minerals. It also cannot achieve the purpose of full and comprehensive utilization of secondary resources, and it is easy to cause secondary pollution of water quality, soil and air.
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[0029] The present invention will be described in further detail without limitation in conjunction with the accompanying drawings and examples below.
[0030] Such as figure 1 As shown, the comprehensive utilization method of sandy kaolin tailings containing tourmaline, muscovite, and quartz sand in the embodiment of the present invention comprises the following steps:
[0031] S10 tailings screening and grinding: kaolin tailings are screened by low-mesh screening equipment, and the coarse-grained ore on the screen is put into the grinding equipment for grinding. Consolidation of minerals. Among them, the low-mesh screening equipment is preferably a 30-mesh vibrating screen, and the grinding equipment is preferably a ball mill. Through tailings screening and grinding steps, the particle size of tailings can be effectively controlled.
[0032] S20 Scrubbing, grading, and screening: the combined mineral material enters the scrubbing machine for stirring and scrubbing to separ...
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Abstract
The invention belongs to the technical field of comprehensive utilization of tailings resources, and discloses a method for comprehensive utilization of sandy kaolin tailings containing tourmaline, muscovite and quartz sand. Grinding, fine-grained products are stirred and scrubbed, classified, screened, electromagnetic slurry magnetic separator, wet plate magnetic separator, vertical ring high gradient magnetic separator, shaking table, flotation machine, etc. Magnetic separation, re-election, flotation Combined beneficiation process to separate mica powder, kaolin, tourmaline, fragment grade mica, quartz sand and magnetic tailings and other products. The present invention adopts the combined beneficiation process of magnetic separation, gravity separation and flotation. While obtaining high-quality concentrates such as quartz sand, tourmaline and mica, the remaining kaolin is also recovered, and the selected iron silicate minerals can be used as building materials. Or cement raw materials, improve the comprehensive recycling rate of secondary resources of kaolin tailings, solve the problem of waste of secondary resources, and achieve high economic and social benefits.
Description
technical field [0001] The invention relates to the technical field of comprehensive utilization of tailings resources, in particular to a method for comprehensive utilization of sandy kaolin tailings containing tourmaline, muscovite and quartz sand. Background technique [0002] Kaolin is a very important non-metallic mineral that is common in nature and is widely used in ceramics, papermaking, coatings, pigments, glass, rubber, plastics, chemicals, medicine and other fields. Kaolin is mainly divided into three types: hard kaolin, soft kaolin and sandy kaolin. Among them, sandy kaolin contains quartz, feldspar, mica, tourmaline and other valuable minerals to varying degrees, and is associated with magnetite and ilmenite. , pyrite, plant fiber, organic peat and other impurities. [0003] Sandy kaolin beneficiation and purification methods are generally: raw ore-mixing-pulping-removing plant fibers-grading sand removal-magnetic separation-bleaching-press filtration dehydrati...
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