Magnetic separation column-anion reverse flotation optimizing beneficiation new process

Abstract

The invention relates to a magnetic separation column-anion reverse flotation optimizing beneficiation new process belonging to the technical field of beneficiation. The magnetic separation column-anion reverse flotation optimizing beneficiation new process comprises the following steps of: obtaining magnetic concentrates by adopting the conventional magnetic separation process; processing the magnetic concentrates by adopting a magnetic separation column, wherein the magnetic separation column selects two products, i.e. an overflow product and a sand setting product; obtaining qualified concentrates by controlling the ascending water and the ore discharge quantity of the sand setting product; also continuously carrying out a flotation regrinding process on magnetic separation column overflows; discarding tailings; enabling the qualified concentrates and magnetic separation column concentrates to be merged into final concentrates. The invention increases a magnetic separation column selection process before reverse flotation aiming at the problems of high cost, environmental pollution, and the like in the traditional magnetic separation-reverse flotation process, thereby effectively reducing the pressure of flotation; the invention obtains 20 percent of the qualified concentrates in advance before the flotation, thereby reducing the flotation ore quantity by 20 percent; and inaddition, the invention also reduces the cost of a flotation procedure by 30 yuan / t, thereby obviously enhancing the economic benefits.

Description

technical field [0001] The invention belongs to the technical field of magnetite separation, in particular to a new magnetic separation column-anion reverse flotation optimized mineral separation process. Background technique [0002] In recent years, on the basis of the stage grinding-stage magnetic separation-fine screen regrinding process used in the magnetite separation process, a major technological breakthrough has been made in the use of anion or cation reverse flotation for the magnetic separation concentrate, and the concentrate grade has reached However, because the reverse flotation process requires the use of a large amount of chemical agents, the cost of mineral processing is high, and the environment is seriously polluted. On the other hand, due to the serious loss of fine-grained magnetite during the flotation process, the pellet formation Therefore, in the current situation where environmental pollution is strictly controlled and the cost of beneficiation is ...

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Problems solved by technology

[0002] In recent years, on the basis of the stage grinding-stage magnetic separation-fine screen regrinding process used in the magnetite separation process, a major technological breakthrough has been made in the use of anion or cation reverse flotation for the magnetic separation concentrate, and the concentrate grade has reached However, because the reverse flotation process requires the use of a large amount of chemical agents, the cost of mineral processing is high, and the environment is seriously polluted. On the other hand, due to the serious loss of fine-grained magnetite during the flotation process, the pellet formation Therefore, in the current situation where environmental pollution is strictly controlled and the cost of beneficiation is as low as possible, the use of this flotation process is subject to certain restrictions.

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