Air-suspending dispersion dry separation belt magnetic separator

Abstract

An air-suspending dispersion dry separation belt magnetic separator comprises a shell with a closed inner cavity. A non-magnetic-conduction annular belt is installed in the closed inner cavity. One section on the lower portion of the non-magnetic-conduction annular belt is a magnetic separation section. A conveying tank, a non-magnetic product receiving hopper and a magnetic product receiving hopper which are located below the magnetic separation section and sequentially arranged in the operation direction of the magnetic separation section are arranged in the closed inner cavity. A conveyingpassageway for conveying materials to the non-magnetic product receiving hopper is defined by the conveying tank and the magnetic separation section. A magnetic separation magnetic system is arrangedabove the magnetic separation section and extends to the portion above the magnetic product receiving hopper from the portion above the conveying tank. A material distribution device is installed on the shell. The air-suspending dispersion dry separation belt magnetic separator further comprises an air-suspending dispersion device used for conveying the materials to the non-magnetic product receiving hopper in a dispersion and suspension state in the conveying passageway. By means of the magnetic separator, the powder dry magnetic separation efficiency, the magnetic separation effect and the product taste can be greatly improved, and the air-suspending dispersion dry separation belt magnetic separator is simple and compact in structure, stable and reliable in work, high in processing capacity and convenient to operate and control.

Description

technical field [0001] The invention relates to the technical field of separation equipment, in particular to an air-suspension dispersed dry-separation belt-type magnetic separator. Background technique [0002] Magnetic separation or magnetic separation technology is a sorting method that uses the magnetic difference of the sorted materials to separate the material particles in the sorting magnetic field. It is widely used in the field of mineral processing or other magnetic separation technology fields. Magnetic separation can be divided into dry magnetic separation and wet magnetic separation. Coarse granular materials (>6mm) are generally dry magnetic separation. When dry magnetic separation is used for materials smaller than 6mm, the separation effect of magnetic separation will decrease, especially if the particle size is less than The magnetic separation effect of 0.5mm material is significantly reduced when dry magnetic separation is used. Therefore, in order to ...

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Problems solved by technology

However, wet magnetic separation requires a large amount of water. Generally, 5-7 tons of water is required for each ton of raw ore. Magnetic separation tailings need to be concentrated by building a thickener. The concentrated overflow water can be recycled after clarification. Take away 40-50% of the water, and the concentrated underflow (tailings) containing 40-50% water is pumped to the tailings pond, clarified in the tailings pond and then returned to the water, which has complex processes, low efficiency, equipment and production High cost and other problems, and the sewage discharged from the tailings will also pollute the land and water sources

Moreover, wet grinding cannot be carried out in the vast water-deficient and anhydrous areas such as the west, and only simple dry selection and pre-selection of coarse particles can be used, and then transported over long distances to places with water for further processing to obtain products, which will greatly increase the cost

In addition, when magnetic separation of individual fine-grained materials is carried out in some fields, the materials cannot be soaked or passed through water, so wet magnetic separation cannot be used.

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