Permanent magnet center-opening-type multi-roller multi-element high-gradient vibration energy-saving magnetic separator

Abstract

The invention discloses a permanent magnet center-opening-type multi-roller multi-element high-gradient vibration energy-saving magnetic separator. The magnetic separator comprises a dielectric groove and rod medium, a low field intensity permanent magnet roller, a coarse medium mesh groove and coarse medium mesh, a medium field intensity permanent magnet roller, a high field intensity permanent magnet roller, a mechanical vibrator, a machine frame, a discharging hopper, a machine body, a medium mesh groove and fine medium mesh, a transparent separation window, a pneumatic vibrator, a feeding hopper and a damping spring. The machine body is arranged on the machine frame through the damping spring. The magnetic separator is of a center-opening-type symmetrical structure. The permanent magnet center-opening-type multi-roller multi-element high-gradient vibration energy-saving magnetic separator disclosed by the invention is unique in magnetic system design and large in separation space; moreover, the separation requirements of different property materials can be met conveniently by adjusting the matching of magnetic roller materials, spacings and magnetic matrices; material adaptability is high, and broadly-graded materials containing various sorts of different magnetic substances can be treated; the technology is flexible, and dry-process separation and wet-process separation can be performed; and moreover, material roughing and scavenging operations can be completed at the same time.

Description

technical field [0001] The invention relates to a mineral magnetic separator, in particular to a permanent magnet center-split multi-roller multi-element high-gradient vibration energy-saving magnetic separator, which belongs to the field of mineral equipment. Background technique [0002] Electromagnetic magnetic separator is still the mainstream equipment for strong magnetic separation at present. Since the electromagnet needs excitation power supply and cooling system, not only the equipment structure is complex, maintenance is inconvenient, expensive, but also the operating cost is relatively high. With the advent of high-performance rare earth permanent magnet materials and the improvement of their magnetic properties, the permanent magnetization of electromagnetic strong magnetic separators has attracted increasing attention from all parties. Although the current research on permanent magnet high-gradient magnetic separation technology has initially solved the problems...

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Problems solved by technology

Although the current research on permanent magnet high-gradient magnetic separation technology has initially solved the problems of magnetic system structure, magnetic field strength, and blockage during the separation process, and has the conditions for initial application in industrial production, there are still the following problems in the actual application process. Outstanding problems in three aspects: (1) The structure of the magnetic system is not reasonable, the field strength in the sorting area is low, and the magnetic energy of the permanent magnet is not fully utilized; (2) The sorting space is narrow, the requirements for equipment processing and manufacturing are high, and the consumption of materials is large (3) The magnetic field strength in the sorting area is uniform, and most of them use a single stainless steel expanded mesh or steel wool and other magnetic gathering media, which are not suitable for wide-grained and multi-magnetic mineral sorting; (4) Mechanical inclusions often occur during the sorting process (5) Most of the wet sorting uses rinsing water to reduce mechanical inclusions, and most of the magnetic materials unloading uses pressure water washing, which consumes a lot of water, and Increase the production pressure of the downstream process; (6) Most of the sorting area is invisible, and it is difficult to observe the sorting status in real time

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