Multi-feeding-belt magnetic separator

Abstract

The invention relates to a device for separating magnetic minerals milled by milling equipment in the industries of metallurgy, mine, chemical industry and the like, in particular relates to a device for magnetic separation of mineral powder extruded by a high-pressure roller mill, and concretely relates to a multi-feeding-belt magnetic separator. The multi-feeding-belt magnetic separator comprises a belt pre-separation mechanism, a belt conveying mechanism and a belt tail-separation mechanism which are arranged from top to bottom, wherein the belt pre-separation mechanism comprises more than two stages of belt magnetic separation mechanisms which are arranged in an overlapped mode; each belt magnetic separation mechanism comprises a transmission wheel, a magnetic roller and a magnetic separation belt sleeving the transmission wheel and the magnetic roller; a magnetic system is arranged inside a lower belt of the magnetic separation belt adjacent to the belt conveying mechanism; and the magnetic field of the magnetic system covers the discharge end of the belt conveying mechanism. The multi-feeding-belt magnetic separator is simple in structure, large in treatment amount and capable of simultaneously considering the separated ore grade and tailing rate; the magnetic system structure of each part can be sufficiently and reasonably utilized through a reasonable structure layout; and under the condition of guaranteeing the magnetic separation effect, the treatment capability is high, and the equipment is compact in shape and small in occupation area.

Description

technical field [0001] The invention relates to a device suitable for sorting magnetic minerals after being ground by grinding equipment in metallurgy, mining, chemical industry and other industries, especially suitable for magnetic separation of ore powder after being squeezed by a high-pressure roller mill, specifically a multi-feed Belt magnetic separator. Background technique [0002] With the large-scale application of large-scale high-pressure roller mills in the field of mineral processing, the existing magnetic separators can no longer adapt to the huge output of roller mills, so the scheme of matching multiple magnetic separators with one high-pressure roller mill is usually used, causing The situation of large investment, large area and large amount of maintenance. At the same time, due to the fact that my country's iron ore resources are rich in lean ore and rich ore is scarce, the magnetic separator has a large amount of tailing and a small selection amount, res...

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Problems solved by technology

[0002] With the large-scale application of large-scale high-pressure roller mills in the field of mineral processing, the existing magnetic separators can no longer adapt to the huge output of roller mills, so the scheme of matching multiple magnetic separators with one high-pressure roller mill is usually used, causing Large investment, large area and large maintenance

At the same time, due to the fact that my country's iron ore resources are rich in lean ore and rich ore is scarce, the magnetic separator has a large amount of tailing and a small selection amount, resulting in a situation where a single magnetic separator has insufficient tailing capacity and a surplus of selection capacity. At the same time, due to The ratio of magnetic material to non-magnetic material in the raw ore is usually 5-10%. In the case of low magnetic material content, it is necessary to ensure that the feeding amount of the magnetic separation mechanism must be constant, so as to avoid the insufficient tailing capacity of the magnetic separation equipment and the tailings in the ore. Excessive inclusion of magnetic materials leads to low magnetic separation efficiency and increased energy consumption

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