山川浮選機網：磁選機的基本結構及工作原理

磁選機的基本結構
　　
　　濕式永磁筒式磁選機主要由圓筒、輥筒、刷輥、磁系、槽體、傳動部分6部分組成。圓筒由2-3mm不銹鋼板卷焊成筒，端蓋為鑄鋁件或工件，用不銹鋼螺釘和筒相連。電機通過減速機或直接用無極調速電機，帶動圓筒、磁輥和刷輥作回轉運動。磁系為開放式磁系，裝在圓筒內和裸露的全磁。磁塊用不銹鋼螺栓裝在磁軛的底板上，磁軛的軸伸出筒外，軸端固定有拐臂。扳動拐臂可以調整磁系偏角，調整合適后可以用拉桿固定。槽體的工作區域用不銹鋼板制造，機架和槽體的其他部分用普通鋼材焊接。
　　
　　磁選機的工作原理
　　
　　礦漿經給礦箱流入槽體后，在給礦噴水管的水流作用下，礦粒呈松散狀態進入槽體的給礦區。在磁場
　　
　　磁選機的作用，磁性礦粒發生磁聚而形成“磁團”或“磁鏈”，“磁團”或“磁鏈”在礦漿中受磁力作用，向磁極運動，而被吸附在圓筒上。由于磁極的極性沿圓筒旋轉方向是交替排列的，并且在工作時固定不動，“磁團”或“磁鏈”在隨圓筒旋轉時，由于磁極交替而產生磁攪拌現象，被夾雜在“磁團”或“磁鏈”中的脈石等非磁性礦物在翻動中脫落下來，最終被吸在圓筒表面的“磁團”或“磁蓮”即是精礦。精礦隨圓筒轉到磁系邊緣磁力最弱處，在卸礦水管噴出的沖洗水流作用下被卸到精礦槽中，如果是全磁磁輥，卸礦是用刷輥進行的。非磁性或弱磁性礦物被留在礦漿中隨礦漿排出槽外，即是尾礦。

Mountains and flotation machine nets: magnetic separators basic structure and working principle

The basic structure of magnetic separators

Wet disposes mainly by permanent magnet separators cylinder, the rollers, brush roller, magnetic department, tub, transmission part 6 parts. Cylinder by 2-3mm stainless steel plate roll welded tube, cover for aluminum parts or components, connected with the stainless steel screw and cylinder. Motor through the reducer or use directly infinitely adjustable-speed motor, driving the cylinder, magnetic roller and brush roller for rotary motion. Magnetic department to open magnetic department, packed in collective cylinder and bare all the magnetic. Magnets with stainless steel bolts into magnetic yoke on the bottom of the shaft, magnetic yoke out the fixed at cylinder shaft turn arm there. Pull (turn arm can adjust, adjust the appropriate PianJiao magnetic department with bars can be fixed. The tub with stainless steel plate manufacturing working area, frame and other parts of the tub with ordinary steel welding.

The working principle of magnetic separation machine

By feed box inflow pulp, after the increment of flow PenShuiGuan for ore under the action of a loose, mineral grains into the tub to state mining area. In magnetic field

The role of magnetic separators, magnetic particles formed magnetic gather happened "magnetic group" or "magnetic chain", "magnetic group" or "magnetic chain" by magnetic effect in in the pulp, poles movement, and to be adsorption in the cylinder. Because the polarity of the cylinder poles along the direction of rotation is arranged alternately, and fixed at work, "magnetic group" or "magnetic chain" with cylinder rotate, the magnetic poles caused alternately due to stir phenomenon, be mingled in the "magnetic group" or "magnetic chain" of the gangue not churn of magnetic minerals, was eventually suck off the surface of the cylinder magnetic group "or" "magnetic Ephraim" is concentrates. Concentrate with cylinder turned to the edge of the magnetic force of weakness, and during discharging water flushing of ore hoses were discharged under the action of the concentrate slot if is the magnetic magnetic roller, unloaded ore is to use brush roller. The magnetic or weak magnetic mineral slurry is left in the pulp from outside with, namely is tailing slot.
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