Roll crusher A mining machinery, mainly used for crushing ore, known as roll crusher double roll crusher, roll crusher, roll-on, roll crusher manufacturers call on the roll crusher (double roll crusher) which applies to the feed particle size less than 80mm, -20mm finished 50 mesh size requirements of crushing operations. Such as the use of pebbles, construction waste artificial sand making; mining crushing iron ore, quartz stone; broken ceramic industry raw materials. Applies to cement, chemicals, power, mining, metallurgy, building materials, refractories, coal and other industries coarse brittle bulk materials, intermediate broken its feed size, discharge size can be adjusted, on the compressive strength ≤160MPa The materials can be broken. Especially coal industry, using the crusher coal, long after iron, cleaning, do not except refuse, can be directly crushed, broken out of the material, uniform size, Chongqing, roll crusher, crushed too low, thus simplifying the coal preparation process, reduce investment and production costs. How roll crusher to maintain good performance for roll crusher widely used. Roll crusher motor through V-belt drive, drive roller to rotate. The other end of the roller spindle is equipped with wheels. Bearing ends of the roller shaft, stationary side on the rack, the other side is fixed to the bearing housing activity, you can move along the rack level. Activities bearing housing mounted turret walk, roll skin when worn, can take the holder, install the Turning carbide roll skin. Sprocket roller shaft at both ends, is used for the transmission of turning roll skin. In addition, the bottom is also equipped with roller blades. When broken water containing large materials, with a scraper remove stuck on the roll skin moist mass. Since the material to be broken particle size and hardness changes often, and sometimes fall into the non-broken, the distance between the rolls change constantly in operation. For in this case, the roller crusher outlet, maintain a good driving performance, order-to-roll crusher, roll crusher generally long-toothed gears are used. Roll crusher working environment is poor, the roll surface wear is relatively large, are generally used welding method to extend the service life of roll crusher, concrete surfacing methods are: (1) electrode selection: To choose D-65, D-667 and 506 electrodes, before surfacing, according to the electrode instructions for use, electrode drying, in an incubator in the back. (2) roller surface treatment: roller surface after the repair can be divided into local and global clearing overall direct welding welding are two ways it can be said that the two processes. Along the roll width direction and uneven wear patterns, hard particles of uneven wear and the whole roll surface wear can be taken directly to the local repair welding method; after 5-6 times through direct welding, since the mother repeatedly withstand high compressive stress, welding microcracks continues to expand, the roller surface will have a layer of a certain thickness of fatigue at this time if then wear repair welding electrode direct, easy to produce interlayer off, it takes on the roller surface fatigue layer completely clean up and then carry out the wear layer surfacing. Hip Hing cement to repair the roller surface as a whole after clearing welding. Either directly or as a whole cleared welding repair welding, roundness error and two-roll mill roll diameter error can not be too large, otherwise it will lead to the level of vibration and two roller press roller uneven load increased. Clean up the roll surface fatigue layer can be used to clean up carbon arc gouging, fatigue layer to the roll surface planing net, the roller base material layer is exposed. Before surfacing, according to electrodes for use, for drying welding, welding preheat, slow cooling after welding. Roll crusher phone manufacturers, Huaying Heavy Industries (online consultation), Chongqing roll crusher provided by the Zhengzhou Mining Equipment Co., Ltd. Huaying. Huaying Zhengzhou Mining Equipment Co. (www.huayingjx.com) is a leader in Zhengzhou, crushing grinding equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Heavy in Huaying leadership with the staff warmly welcome all inquiries negotiations to create a better future Huaying Heavy.