Counter-Roll Crusher Aggregate Processing Equipment Double Roller Crusher

Counter-roll crusher, is also called double-roller crusher. It is mainly used for crushing ore. The machine has the advantages of small size, large crushing ratio (5-8), low noise, simple structure and convenient maintenance, uniform particle size of crushed materials, low over-crushing rate, convenient maintenance, sensitive overload protection, safety and reliability. Applicable to coal, metallurgy, mining, chemical industry, building materials and other industries, more suitable for large coal mines or coal preparation plant raw coal (including gangue) crushing. Tooth roll crusher has large crushing capacity. The motor and reducer are connected by a spacing-limited hydraulic coupler to prevent power overload and sensor overload protection. It is safe and reliable. Hydraulic adjustment of tooth roller spacing, centralized lubrication of tooth roller bearing. Optimum design of tooth profile, choosing crushing of tension and shearing force, high efficiency and low consumption, uniform granulation.

Roller crusher for crushing materials with two rotating rolls. It is composed of motor, bracket, fixed roll, movable roll and safety spring. The roller surface is mostly smooth. The bearing of the movable roller can be moved along the frame and supported by a strong safety spring. When a particularly hard object falls in, the bearing can be removed and the object spits out. Before normal operation, gaskets should be used to adjust the clearance between the two rollers to ensure the breakage ratio. Suitable for medium crushed cohesive stone

With the help of friction force, the rotating working roll pulls the material to the surface of the roll into the crushing chamber, so that the material is crushed by the stress of extrusion, and the crushing chamber is brought out by the rotating roll, which is discharged as the crushing product. The roll surface of this crusher has two kinds: smooth roll surface and non-smooth roll surface. Smooth roll surface deals with harder materials; non-smooth roll surface with grooves or roll teeth, mostly used to crush brittle materials such as coal. Roller crushers can be divided into single-roll, double-roll or multi-roll crushers according to the number of rollers. Twin-roll crusher, also known as counter-roll crusher, is the most common crusher. According to the speed of roll, it can also be divided into fast, slow and differential roll crusher. The fast circumferential speed can reach 4-7.5m/s and the slow speed is 2-3 m/s. The differential roll crusher is mainly used to deal with sticky materials, mostly two roll-to-roll crushers with different diameters. The basic structure of the roller crusher is a work roll with wear-resistant roll skin. The bearing seat of the work roll has a spring or hydraulic adjusting mechanism, which is used to adjust the size of the discharge port. It also acts as a protective device for overload. In addition, there are transmission system, feeding and discharging devices. Rack and protective cover, etc. The main parameters affecting the production capacity and transmission power of roll crusher are rod angle, feed size and roll speed. The roll crusher with large power and small discharge orifice can effectively crush materials superfine. High-pressure roll mill developed on the basis of roll mill can make the material layer crushing under high pressure to adapt the stress exerted by roll and material characteristics. It can effectively transform machinery into crushing energy and achieve the effect of fine grinding of materials. It has the advantages of high production, energy saving, steel consumption saving, cost reduction and wide application.