Separation system for removing biotite from artificial sand

A sorting system, artificial sand technology, applied in the direction of magnetic separation, solid separation, chemical instruments and methods, etc., can solve the problems of low guarantee rate, unfavorable project development, increased transportation costs, etc., to achieve convenient operation and simplified sorting system structure effect

CN106733176AInactive Publication Date: 2017-05-31POWERCHINA CHENGDU ENG
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2017-05-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a separation system, particularly discloses a separation system for removing biotite from artificial sand, and belongs to the technical field of design and manufacturing of water-power engineering building material production equipment. The separation system for removing biotite from artificial sand is convenient to operate, simple in structure and capable of effectively removing biotite from artificial sand. The separation system comprises a magnetic selection mechanism and a material separation mechanism. When biotite mixed in artificial sand runs in the material separation mechanism along with the artificial sand, the biotite is separated out of the artificial sand through the magnetic selection mechanism.
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Description

technical field

[0001] The invention relates to a sorting system, in particular to a sorting system for removing biotite in artificial sand, and belongs to the technical field of design and manufacture of building material production equipment for hydropower projects. Background technique

[0002] Most of the hydropower projects and transportation projects in Southwest my country are located in deep mountains and valleys, where the river flow rate is high and natural sand is difficult to deposit on the riverbed; therefore, there is often a lack of sufficient and compliant natural fine aggregates, and local natural rocks are usually mechanically crushed and screened. Finally, artificial sand with various particle sizes can be obtained and used in concrete production. Since quite a lot of natural rocks contain rock-forming minerals—mica, and there is no effective and economical way to remove mica from artificial aggregate raw ore, it often results in high mica content in fine a...

Examples

Embodiment 1

[0057] In the traditional artificial sand production process, the sorting system provided by this application is added before the finished sand enters the stockyard, as shown in the attached figure 1 shown. The specific implementation process is as follows:

[0058] Production preparation stage:

[0059] Laboratory physical and chemical tests are carried out according to the raw materials mined in the engineering stockyard, and the obtained biotite content is usually free, biotite chemical components such as FeO, Fe 2 o 3 etc., and determine the density, specific magnetic susceptibility, specific gravity, etc. of mica. So as to carry out technical and economic comparison and selection, and then determine the characteristic indicators of this sorting system: magnetic field strength is the magnetic field force, magnetic pole width, falling height is time, theoretical offset, and channel width.