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Flotation method capable of protecting integrity of graphite flakes

A graphite flake and integrity technology, used in flotation, solid separation, grain treatment, etc., can solve the problems of large flake graphite damage, excessive grinding times, long process structure, etc., to reduce the number of regrinding and processing. The effect of improving the regrinding efficiency

Pending Publication Date: 2021-10-08
烟台金鹏矿业机械有限公司
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Problems solved by technology

[0004] In the production process, for the flotation process of multi-stage grinding and multi-stage separation, due to the long process structure and complicated process, especially the excessive number of grinding times, the large flake graphite is seriously damaged

Method used

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  • Flotation method capable of protecting integrity of graphite flakes

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Embodiment Construction

[0041] The flotation method provided by the invention that can protect the integrity of graphite flakes adopts grinding-classification flotation, firstly grinds and screens the raw ore, and then selects the Zhengmu concentrate three times to obtain Zhengmu high-carbon graphite.

[0042] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0043] refer to figure 1 , the flotation method that can protect the integrity of graphite flake provided by the invention specifically comprises the following steps:

[0044] Step 1: Grinding

[0045] Use a rod mill to grind -2mm graphite raw ore (fixed carbon grade is 14.89%), and the grinding concentration is 60wt%. The ore fineness is -0.15mm, accounting for 43.33%.

[0046] In the present invention, GY is used as the agent having both collecting property and foaming property. GY is a compound agent composed of normal alkanes with 10-14 C atoms and 2# oi...

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Abstract

The invention discloses a flotation method capable of protecting the integrity of graphite flakes. The flotation method specifically comprises the following steps of (1) grinding raw graphite ore with the particle size of -2 mm, adding an agent with both collecting property and foaming property into a rod mill during ore grinding, and grinding the ore until the proportion of the ore with the particle size of -0.15 mm accounting for 40%-50%; (2) screening graphite floating on the ore pulp liquid surface by using a 0.15 mm sieve to obtain +0.15 mm graphite and -0.15 mm graphite; and (3) feeding the +0.15 mm graphite into a flotation machine to carry out three-time concentration to obtain middling 1, middling 2, middling 3 and concentrate 1. The flotation method has the beneficial effects that the completeness of the graphite flakes can be protected, and the yield and the fixed carbon grade of the large-flake graphite concentrate can be improved.

Description

technical field [0001] The invention relates to a flotation method, in particular to a flotation method capable of protecting the integrity of graphite scales, and belongs to the technical field of mineral processing. Background technique [0002] Flake graphite is a mineral with strong hydrophobicity and good natural buoyancy. High-grade large flake graphite has higher economic value. Therefore, in the flake graphite sorting process, it is necessary to protect the large flake graphite. [0003] Flake graphite sorting generally adopts multi-stage grinding and multi-stage sorting flotation process, and can be harvested as early as possible to achieve the purpose of protecting large scales. [0004] In the production process, for the multi-stage grinding and multi-stage separation flotation process, due to the long process structure and complicated process, especially the excessive grinding times, the large flake graphite is seriously damaged. Contents of the invention [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C17/10B02C23/14B03D1/006B03D101/02B03D101/04B03D103/02
CPCB02C17/10B02C23/14B03D1/006B03D2201/02B03D2201/04B03D2203/02
Inventor 胡俊陈晓波刘行沈永宇刘建文
Owner 烟台金鹏矿业机械有限公司
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