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Montmorillonite dry enrichment and purification method

A purification method, montmorillonite technology, applied in the direction of cleaning methods and utensils, chemical instruments and methods, drying, etc., can solve the problems of increased production costs, poor purification effect, easy to cause silicosis, etc., to avoid dust outside Discharge, reduce purification production costs, optimize the effect of the working environment

Pending Publication Date: 2021-01-19
临澧县众帮化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The dry purification in the prior art is air-selected according to the difference in hardness and density after the secondary drying and secondary crushing processes, and the ore including all impurities is processed before the air-selection, which greatly increases the In addition to the production cost, especially for raw ores with a montmorillonite content of less than 80%, unnecessary waste is caused, and the purification effect is not good
In addition, the disadvantage of dry operation is that the dust pollution is large, and the quartz in bentonite can easily lead to silicosis

Method used

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Embodiment 1

[0038] The montmorillonite dry enrichment and purification method of the present embodiment is realized through the following steps:

[0039] (1) Raw ore selection: choose bentonite raw ore with montmorillonite content of 75-80% and obvious color difference;

[0040] (2) Raw ore drying: Dry the raw ore through the sunlight drying room 1 until the water content is lower than 9%, and the dust generated during the drying process is collected by the negative pressure dust removal system 6;

[0041] (3) Crushing: Transport the dried raw ore to the crusher under sealed conditions, and crush it in the crusher until the particle size is 6cm;

[0042] (4) Negative pressure removal of impurities: the crusher is also connected and communicated with the air inlet of the negative pressure dust removal system 6 through pipes and valves, and the dust on the surface of the crushed raw ore is adsorbed by negative pressure and collected;

[0043] (5) Color sorting: the raw ore particles that h...

Embodiment 2

[0049] The montmorillonite dry enrichment and purification method of the present embodiment is characterized in that it is realized through the following steps:

[0050] (1) Raw ore selection: choose bentonite raw ore with montmorillonite content of 70-80% and obvious color difference;

[0051] (2) Raw ore drying: the raw ore is dried in a sunlight drying room until the water content is lower than 9%, and the dust generated during the drying process is collected by a negative pressure dust removal system;

[0052] (3) Crushing: Transport the dried raw ore to the crusher under sealed conditions, and crush it in the crusher until the particle size is 5cm;

[0053] (4) Negative pressure removal of impurities: the crusher is also connected and communicated with the negative pressure dust removal system through pipes and valves, and the dust on the surface of the crushed raw ore is adsorbed by negative pressure and collected;

[0054] (5) Color sorting: the raw ore particles that ...

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Abstract

The invention discloses a montmorillonite dry enrichment and purification method. The montmorillonite dry enrichment and purification method comprises the steps of raw ore selection, raw ore drying, crushing, negative pressure enrichment, color separation, magnetic separation, grinding, winnowing and the like. According to the method disclosed by the invention, the montmorillonite can be effectively enriched, the yield of the montmorillonite in the purification process is improved, and the purity of the montmorillonite is effectively improved.

Description

technical field [0001] The invention relates to a method for purifying montmorillonite, in particular to a method for enriching and purifying montmorillonite by a dry method, and belongs to the technical field of montmorillonite purification. Background technique [0002] Montmorillonite is the main component of bentonite, which has excellent physical and chemical properties, such as: water absorption expansion, adsorption, dispersion suspension, cation exchange, cohesion, etc., in building materials, metallurgy, petroleum, chemical industry, medicine, food, etc. It has a wide range of uses in fields such as feed industry, and is often used as a mildew remover, antidiarrheal agent, adhesive, etc. in the feed industry. Montmorillonite is widely used, and it is of great significance to study its purification. [0003] At present, the commonly used montmorillonite purification method is physical purification method, including wet purification and dry purification. The wet puri...

Claims

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Application Information

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IPC IPC(8): C01B33/40F26B9/06F26B25/22B08B15/00
CPCC01B33/40F26B9/06F26B25/22B08B15/002C01P2006/80
Inventor 孙圣烟
Owner 临澧县众帮化工有限公司