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Vermiculite production processing technology

A processing technology and vermiculite technology, applied in the field of vermiculite production and processing technology, can solve the problems of slow cooling speed and high impurity content, and achieve the effects of wide variety, low impurity content and wide application fields.

Inactive Publication Date: 2014-09-10
SHIJIAZHUANG JINLI MINING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a vermiculite production and processing technology, which solves the problems of slow cooling speed and high impurity content in the production process of expanded vermiculite in the prior art

Method used

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  • Vermiculite production processing technology

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Embodiment

[0035] A kind of vermiculite production and processing technique, its method step is as follows:

[0036] (1) Pulverization: The vermiculite raw material is pulverized by a hammer crusher.

[0037] (2) Primary sieving: sieving and grading the pulverized vermiculite raw materials to remove larger non-vermiculite impurities.

[0038] Since vermiculite is relatively soft and brittle, other non-vermiculite impurities are relatively hard and not brittle, so it is easy to remove the larger non-vermiculite impurities after the crushed vermiculite raw material is sieved.

[0039] (3) One-time machine removal of impurities: the vermiculite raw material after primary screening is passed through a sand remover to remove a part of sandstone in the vermiculite raw material, so that the impurity content in the vermiculite raw material is reduced to 15% to 20%;

[0040] Since part of the vermiculite will be broken during the process of removing impurities by the impurity remover in step thr...

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Abstract

The invention provides a vermiculite production processing technology. The method of the technology comprises the following steps: grinding the vermiculite raw material; sieving and grading the ground vermiculite raw material; performing primary cleaning of the vermiculite raw material after the primary sieving by use of a sand removing machine; calcining the vermiculite raw material after the primary cleaning; performing secondary cleaning of the calcined expanded vermiculite in a winnowing machine; sieving and grading the expanded vermiculite after the winnowing by use of a flat sieve, and sieving out various types of expanded vermiculite according to the different sizes of the expanded vermiculite; and performing third-time mechanical cleaning of the types of expanded vermiculite. The vermiculite production processing technology provided by the invention has the beneficial effects that the vermiculite does not need to be spread out to be cooled after the calcination and can be packaged directly, thereby greatly improving the working efficiency and reducing the labor intensity of workers; and through the cooling and purifying technology, the production cost is greatly reduced, and the produced vermiculite product can be widely applied to the industries with relatively high requirement on the vermiculite product quality such as fireproof coatings and rubbing seal materials.

Description

technical field [0001] The invention relates to the technical field of ore production and processing, in particular to a vermiculite production and processing technology. Background technique [0002] Vermiculite is a natural, non-toxic mineral that expands under high temperature. It is a relatively rare mineral that belongs to silicate. Because vermiculite has ion exchange capacity, it has a great effect on soil nutrition. Vermiculite can be used as building materials, adsorbents, fireproof insulation materials, mechanical lubricants, soil conditioners, etc., and has a wide range of uses. [0003] The production process of traditional vermiculite is as follows: After the raw ore is crushed and screened, it is directly calcined at high temperature, and then spread out to cool down. Since the contact surface between vermiculite and cold air is small, the overall cooling speed is relatively slow, and it takes about 4-5 It takes a genius to carry out manual bagging, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/00
Inventor 白国江
Owner SHIJIAZHUANG JINLI MINING IND
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