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Method of extracting feldspar concentrate by using desert aeolian sand

A technology of desert aeolian sand and aeolian sand, applied in the direction of silica, grain processing, silicon oxide, etc., can solve the problems of high cost, difficult practical operation, and difficult removal of insoluble substances, so as to reduce consumption and production cost effect

Active Publication Date: 2018-09-28
陈留慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] CN101870474A provides a method for preparing quartz sand concentrate by desert aeolian sand beneficiation, which can be fluorine-free ore beneficiation, but many insoluble substances are difficult to remove, and the cost is still too high
CN101885489B provides a method for preparing feldspar powder concentrate by desert aeolian sand beneficiation, which directly uses an electromagnetic strong magnetic separator to remove iron, which can easily cause large particles of iron to be unable to be removed, and is difficult to operate

Method used

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  • Method of extracting feldspar concentrate by using desert aeolian sand
  • Method of extracting feldspar concentrate by using desert aeolian sand
  • Method of extracting feldspar concentrate by using desert aeolian sand

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Effect test

Embodiment 1

[0037] (1) Firstly, carry out screening analysis and microscopic examination on the aeolian sand, and determine that the sieving fineness is 0.1-0.4 mm, and pass the aeolian sand through a 0.5 mm sieve to remove impurities such as grass roots and leaves. Secondly, the under-sieve product enters the classification equipment, and most of the fine particle impurities of about 0.1mm are screened out. Impurities and fine particles of grass roots, leaves and leaves screened out are directly backfilled to the original sand position and reserved for soil reclamation.

[0038] (2) Feed the coarse grain part obtained above into a high-frequency fine sieve with a concentration of 15%, and screen out the remaining fine grain impurities of about 0.1 mm. Then the coarse particles on the grading screen are concentrated and fed into the shaping mill for grinding. The grinding concentration is 65%. The closed-circuit grinding system is composed of a long tube ball mill and a high-frequency fin...

Embodiment 2

[0044] (1) Firstly, carry out screening analysis and microscopic examination of the aeolian sand to determine the sieving fineness of 0.1-0.4mm, pass the aeolian sand through a 0.3mm sieve, and remove impurities such as grass roots and leaves. Secondly, the under-sieve product enters the classification equipment, and most of the fine particle impurities of about 0.1mm are screened out. Impurities and fine particles of grass roots, leaves and leaves screened out are directly backfilled to the original sand position and reserved for soil reclamation.

[0045] (2) Feed the coarse grain part obtained above into a high-frequency fine sieve with a concentration of 20%, and screen out the remaining fine grain impurities of about 0.1mm. Then the coarse particles on the grading screen are concentrated and fed into the shaping mill for grinding. The grinding concentration is 60%. The closed-circuit grinding system is composed of a long tube ball mill and a high-frequency fine screen, wh...

Embodiment 3

[0051] (1) First, carry out screening analysis and microscopic examination on the aeolian sand, and determine the sieving fineness to be 0.1-0.4mm, pass the aeolian sand through a 0.6mm sieve, and screen out impurities such as grass roots and leaves. Secondly, the under-sieve product enters the classification equipment, and most of the fine particle impurities of about 0.1mm are screened out. Impurities and fine particles of grass roots, leaves and leaves screened out are directly backfilled to the original sand position and reserved for soil reclamation.

[0052] (2) Feed the above-mentioned coarse-grained part into a high-frequency fine sieve with a concentration of 10%, and screen out the remaining fine-grained impurities of about 0.1 mm. Then the coarse particles on the grading sieve are concentrated and sent to the shaping mill for grinding. The grinding concentration is 70%. The closed-circuit grinding system is composed of a long tube ball mill and a high-frequency fine...

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Abstract

The invention discloses a method of extracting feldspar concentrate by using desert aeolian sand. The method comprises the following steps: (1) carrying out screening, analyzing and microscopic examination on the aeolian sand to determine a screening fineness range, sieving the aeolian sand, and feeding the undersized products into grading equipment to obtain a coarse grain part; (2) feeding the obtained coarse grain part into a high frequency undersize sieve, and then feeding the concentrated coarse grains on a classifying sieve into a shaping mill to be ground; (3) removing iron from groundpulp by using a magnetic separator with high magnetism; (4) desliming concentrate without iron with high magnetism; (5) adjusting the pH value of the pulp of the deslimed concentrate with acid, and adding an amine collecting agent for floating edulcoration; and (6) floating the feldspar of minerals after floating edulcoration to obtain a product feldspar concentrate. The preparation method disclosed by the invention is simple and feasible and low in cost, and the prepared feldspar concentrate is high in quality.

Description

technical field [0001] The invention belongs to the field of ore processing, and in particular relates to a method for extracting feldspar concentrate by using desert aeolian sand. Background technique [0002] Aeolian sand is the sand layer deposited by the wind, which is the tentacles of desert encroaching on oasis and expanding desert. In order to delay the pace of desert expansion and reduce the hazards of desertification, people often take sand prevention and sand fixation measures such as planting trees and grass. In recent years, with the introduction of the concepts of industrial sand control and industrial sand use, resource utilization of aeolian sand is gradually becoming a new measure for sand control and sand fixation. At present, the use of aeolian sand as roadbed materials has been successful, and related technologies have been popularized and applied. If we want to make full use of desert aeolian sand resources and process them, the prerequisite is to be ab...

Claims

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Application Information

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IPC IPC(8): B02C21/00B02C23/14C01B33/12
CPCB02C21/00B02C23/14C01B33/12
Inventor 陈述明王杨陈留慧李绍元杨朝晖赵吉成辛明印张晓帆
Owner 陈留慧
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