Method for extracting iron ore concentrate under anhydrous condition

An iron ore concentrate powder, anhydrous technology, applied in chemical instruments and methods, magnetic separation, solid separation, etc., can solve the problems of limiting the scale of iron ore resource mining in arid areas, consuming large water resources, and high extraction costs. The effect of reducing water pollution, improving production efficiency and reducing extraction costs

Active Publication Date: 2013-04-17
山东科力华电磁设备有限公司
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Problems solved by technology

This extraction method of iron concentrate not only consumes a lot of precious water resources, resulting in waste of water resources, but also the tailings slurry formed during the extraction process will pollute the water quality of the surrounding environment
Especially for iron ore in arid areas such as des

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  • Method for extracting iron ore concentrate under anhydrous condition
  • Method for extracting iron ore concentrate under anhydrous condition

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Embodiment Construction

[0028] The present invention will be further described without limitation in conjunction with the accompanying drawings and examples below.

[0029] figure 1 Shown is the technical process of the method for extracting iron concentrate powder under anhydrous conditions of the present invention, and the method for extracting iron concentrate powder under anhydrous conditions of the present invention comprises the following steps:

[0030] (1) Crushing: Use a crusher to crush the raw ore to obtain raw ore particles. The crusher in this embodiment adopts a jaw crusher, which has high crushing efficiency and is used for coarse crushing of raw ore.

[0031] (2) Screening: Use a vibrating screen to screen the raw ore particles. The vibrating screen in this embodiment adopts a circular vibrating screen, which is a new type of high-efficiency vibrating screen with reliable structure, strong excitation force, high screening efficiency, low vibration noise, sturdy and durable, convenie...

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Abstract

The invention discloses a method for extracting iron ore concentrate under anhydrous condition. The method comprises the steps of rude ore crushing, screen separation, preselection, ball milling, grading, high-pressure pneumatic separation and magnetic separation and the like. During high-pressure pneumatic separation and magnetic separation, high-pressure air obliquely blows in through a high-pressure air inlet from the bottom up, blows falling semi-refined ore concentrate to a dry-type selection magnetic separator, large-particle tailings in the semi-refined ore concentrate falls to the bottom of a housing under the self gravity action, fine-particle tailings are discharged along with air from the top opening of the housing and are collected, iron ore concentrate in the semi-refined ore concentrate is adsorbed by the dry-type selection magnetic separator, and finally, iron or concentrate is extracted. By adopting the method to extract iron ore concentrate, water utilization is radically omitted, water resource waste and water pollution are avoided, extraction of iron ore concentrate in mining regions without water sources in deserts and other arid areas is particularly satisfied, and exploitation of iron ore in deserts and other arid areas can be favorably realized.

Description

technical field [0001] The invention relates to the technical field of concentrate extraction in ore dressing, in particular to a method for extracting iron concentrate powder under anhydrous conditions. Background technique [0002] Ores with lower grades of valuable metals are processed by mechanical enrichment or physical enrichment, such as radioactive separation, gravity beneficiation, flotation and other beneficiation processes, to obtain a certain yield of ores with higher grades of valuable metals. The ore that has collected valuable metals is called concentrate. [0003] The iron concentrate extraction method in the prior art is: after the iron ore is crushed by a crusher, it enters a ball mill for ball milling, and then a large amount of water is added to the iron ore particles after ball milling to form a slurry, and then the slurry is subjected to wet magnetic separation with a wet magnetic separator. Extraction of iron ore concentrate. This extraction method o...

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Application Information

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IPC IPC(8): B03C1/30
Inventor 王海强张翠郭宝华
Owner 山东科力华电磁设备有限公司
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