Two rollers are driven by two electric motors, and for opposing rotation. Ore from the upper to the crushing gap is formed between the two rollers carried. Metal Mine smooth roll surface due to multi-use, so crushing effect mainly by crushing, and comes with some grinding action (when the tooth surface is mainly by chipping effect). Material crushed by gravity self-discharge. This feature is due to crusher material through two rollers in the middle when pressed only once, so less over crushed phenomenon. Roll crusher has a simple structure, compact, lightweight, reliable magnetic separator repair, low cost, easy maintenance, etc., and the broken product particle size uniformity, over crushed small, fine particle size (you can break to 3.0mm or less). Therefore suitable for the treatment of brittle materials and materials containing clay sticky small processing plant (such as tungsten ore), as the crushing purposes. The main disadvantage of roll crusher is the low processing power. Pay special attention when the roll crusher on the following matters: (1) to strengthen the work to iron ore. Non-broken (solder first class thereof) fall into the inter-roll will damage the crusher, resulting in parking accident. So before the crusher should be installed in addition to iron. (2) viscous material easy to plug the broken space, in the process clogging failure should stop treatment, can not be stabbed mine in operation. (3) When the material handling chunk containing more, pay attention to large pieces of ore from the crushing space easily squeezed out, to prevent injury or damage to the device. (4) roll crusher operation after a long time, due to the larger roll surface wear can cause product size too small, then we should adjust the port of discharge or equipment maintenance. (5) to strengthen inspection of equipment for lubrication equipment to refuel on time and keep good equipment lubrication. Rotating spiral chute infos rotating spiral chute is a combination of spiral concentrator, features shaker, centrifugal concentrator, is a high-efficiency "overlay" style performance of re-election equipment. In addition to having a spiral chute general characteristics, but also with a reasonable structure, processing stability, sub-ore clear, large capacity, high efficiency beneficiation enrichment ratio, high recovery rate, running and reliable. The difference between the rotating spiral chute and general spiral chute is a spiral groove around the vertical axis of rotation, the particles subject to greater centrifugal force separator manufacturers to shorten the process of sorting the necessary distance, increase productivity. Mineral particles in the slot surface by hydrodynamic centrifugal force, friction, gravity, and other composite force field difference being sorted. Its sorting action from three aspects: first, because the speed of the rotating spiral chute by a certain cause in the process of sorting, the underlying heavy mineral slurry flow in the opposite direction by the frictional force along a particular direction, to heavy minerals inertial force tangent motion increases, while the normal direction of the force is small, resulting in conditions of heavy minerals along special grooves to concentrate strip or band (inner edge) movement. In the process of sorting the light minerals located on the upper surface of the spiral chute, by friction is small, because the spiral chute rotation velocity is large. While the strong role of the high-speed flow, light mineral was quickly pushed outward into the tailings zone. The second magnetic separator, tank surfaces with special strips or grooves, and the diameter of the screw angled spiral chute and rotating at a certain speed, forcing heavy minerals, in particular, to make the outer heavy mineral turns to spiral The movement of the inner edge of the groove evaporated. So that the recovery has been greatly improved. Light mineral in constant motion while the outer edge of the spiral belt into the tailings. Third, since the rotation of the spiral chute against dust separator, in addition to increasing the inertia of heavy minerals, increase light mineral centrifugal force, but also to make the bottom groove surface against heavy minerals along special grooves to concentrate strip or band movement. Vibration separator, North mine Zhongcheng (online consultation), Benxi magnetic separator from Shenyang North Mine Zhongcheng machinery Limited. Shenyang North Mine Zhongcheng equipment Limited (sybkzc.com) (www.sybkzcjq.com) Liaoning Shenyang, machining leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In North mine public into leadership with the staff warmly welcome all inquiries negotiations to create the North mine public into a better future.