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Method for processing low-grade kaolinite ore

A technology of kaolin mines and processing methods, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of uneconomical kaolin mines and large land occupation, and achieve reasonable processing technology design, stable production technology, and improved The effect of resource utilization

Inactive Publication Date: 2012-02-22
HEPU HUTIAN KAOLIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The Hepu area of ​​Beihai is the main production area of ​​kaolin in my country. The upper part of the kaolin ore body is covered with a layer of low-grade kaolin ore with a thickness of 2 to 5 meters. About 80% of these low-grade kaolin ores are quartz, and about 10% are mica. It is not economical to directly produce this layer of kaolin ore in the existing technology, and it is currently stripped and stacked as tailings, which requires a large amount of land

Method used

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  • Method for processing low-grade kaolinite ore
  • Method for processing low-grade kaolinite ore
  • Method for processing low-grade kaolinite ore

Examples

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Effect test

Embodiment 1

[0022] Add 3.33 tons of water in the mashing machine pool, transport 5.0 tons of kaolin raw ore in the feeder to the mashing machine pool by belt conveyor I, then add (NaPO 3 ) 6 12.5kg (equivalent to 2.5‰), NaOH 3.5kg (equivalent to 0.7‰), mixed and mashed, the mass concentration of the pulp is 60%, and the ore is washed by a sand washing machine. The fine mortar after washing is 0.50 tons and passed through a hydrocyclone Flow device I is used for classification, the pressure is 0.15MPa, the overflow is 0.40 tons to become 0.045mm grade kaolin products, the bottom flow is 0.10 tons and enters the ball mill; the coarse sand after washing is 4.5 tons, which is conveyed by the conveyor belt II and passed through the 0.55mm vibrating screen for processing Screening, the sieve products larger than 0.55mm enter the rod mill, and the grinding products return to the vibrating screen for sieving, and the cycle continues. Slurry under the sieve adjusts mass concentration to be 45% an...

Embodiment 2

[0028] Add 6.55 tons of water in the mashing machine pool, 8 tons of kaolin raw ore in the feeder will be delivered to the mashing machine pool by belt conveyor I, and then add (NaPO 3 ) 6 8kg (equivalent to 1‰), NaOH 2.4kg (equivalent to 0.3‰), mixed and mashed, the mass concentration of the pulp is 55%, and the ore is washed by a sand washing machine, and the fine mortar after washing is 0.80 tons and passed through a hydrocyclone The pressure is 0.15MPa, the overflow is 0.40 tons to become a 0.045mm grade kaolin product, the underflow is 0.40 tons and enters the ball mill; the coarse sand after washing is 7.2 tons, which is conveyed by the conveyor belt II and passed through a 0.55mm vibrating screen for screening The sieve products larger than 0.55mm enter the rod mill, and the ground products return to the vibrating screen for sieving, and the cycle continues. Slurry under the sieve adjusts mass concentration to be 45% and enters the sedimentation classifier, controls th...

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Abstract

The invention discloses a method for processing low-grade kaolinite ore. The method comprises the following steps of: pulping crude kaolinite ore, washing sand, classifying fine mortar with a hydraulic cyclone I, overflowing to obtain a kaolinite product, screening coarse sand with a vibration screen of 0.55 millimeter, feeding screen overflow into a rod mill, feeding screen underflow into a sedimentation classifying process, making overflow and bottom flow of the hydraulic cyclone I enter a ball mill together, performing ore grinding, classifying with a hydraulic cyclone II, and separating overflow serving as mica powder and bottom flow serving as tailings; magnetically separating sedimentation-classified settled sand with a high-gradient magnetic separator to obtain a nonmagnetic product serving as concentrated ore and a magnetic product serving as tailings; and floating the magnetically-separated nonmagnetic product to obtain concentrated quartz sand. The method has a reasonable process design, a stable production process and good economic and social benefits, and is easy to control; kaolinite, mica and quartz can be separated from low-grade kaolinite ore; and meanwhile, the resource utilization ratio is increased.

Description

technical field [0001] The invention belongs to the field of non-metallic ore dressing, especially the processing method of low-grade kaolin ore. Background technique [0002] The Hepu area of ​​Beihai is the main production area of ​​kaolin in my country. The upper part of the kaolin ore body is covered with a layer of low-grade kaolin ore with a thickness of 2 to 5 meters. About 80% of these low-grade kaolin ores are quartz, and about 10% are mica. It is not economical to directly produce this layer of kaolin ore in the prior art, and it is currently stripped and stacked as tailings, which requires a large amount of land. To solve this problem, it is necessary to adopt a new process of comprehensive processing, so that this kind of ore can be used economically, and at the same time achieve the purpose of comprehensive utilization of resources. Invention content: [0003] The technical problem to be solved by the present invention is to provide a processing method of low-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00
Inventor 高惠民沈明豪王国海
Owner HEPU HUTIAN KAOLIN
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