MMD crusher is mainly used for coarse crushing and second crushing operations. which can be used for crushing the open surface rock mining ore, coal, limestone, clay, iron ore, gold ore, copper ore, lead-zinc, nickel ore, talc, coke and other rock and mineral materials. In the world, there are over 600 MMD crushers at work. Now 16 large MMD crushers have been put into application in Chinese major coal mines of the mining industry.
The crusher had 500,625,750,1000,1300,1500 mm these 6 series. Each series is divided into short-box, the three types of standard containers and long box to accommodate the needs of the different production capacity. The largest processing capacity is up to 8000-14000t / h. MMD high efficient crusher can be made fixed, semi-mobile and mobile these three modes to adapt the different working environment need . The crusher is widely used in mining, metallurgy, building materials, road, railway, water conservancy and chemical industry and many other sectors. Common crushing machines are impact crusher, winnowing mill, roll crusher, compound crusher. Jaw crusher (jaw crusher), with the large crushing ratio, uniform particle size, simple structure, reliable operation, easy maintenance, operating costs and economic these characteristics. PF-I series impact crusher can process materials side length is100 to 500 mm, the compressive strength is up to 350 MPa, great crushing ratio, cubic particles advantages of material was broken; PF-II series impact crusher machine, which is suitable for crushing hard materials, such as cement limestone crusher, with advantages of large production capacity and small discharging size.
After years of unremitting efforts,MMD Series tooth crusher is the launched new generation of old MMD crusher . The MMD-IOOO type tooth crusher appearance, MMD tooth crusher structure. MMD crusher structural features are the following: (1) tooth toothed and feet are in line with the principle of the shear force design, special toothed teeth. (2) having a protruding low rack. The entire Crusher structure is very compact and simple. (3) the tooth, there are two types: sets of teeth-tooth and segmented arch plate tooth. Tooth using special wear-resistant steel, rough broken teeth or tooth sets 4-tooth, broken tooth or section 6 teeth nested bow plate teeth in the second paragraph. (4) the crusher, the material can be dumped in the entire upper part of the rack, the spout is not easy to produce blockage, discharge opening, almost the entire bottom of the machine in the discharge of the crushed product.
The combination crusher is a new generation high efficiency vertical crusher designed and researched by integrating the domestic and foreign crusher technology with the same kinds and optimizing the main technical parameters. PYF series compound stone crusher is widely used in metallurgical industry, building materials industry, road building industry, chemical industry and industrial acid. Applied to middle-and middle-broken over the hardness of ore and rock, this machine has many advantages such as big crushing force, high efficiency, high capacity, low cost movements, Convenient adjustment and economic use. This series of compound vertical crusher or high efficient stone crusher is suitable for crushing iron ore, metal ore, granite, limestone, sand rock and river pebble in such industries as cement plant, buildings and sand and stone metallurgy.
The compound crusher has high crushing ratio, and it is ideal for crushing and processing materials with high water content. The granularity of the discharged materials can be adjusted according to the customers requirements. There is no screening bar in this machine so that the materials with high mud and sand content will not block the machine, and even if some uncrushable materials go into the machine, they can be automatically discharged and will not cause damage to the machine. This machine has many advantages such as high production efficiency, unique structure, stable operation, low level of noise and convenient repair, and the easy-wearing parts can be easily changed only by opening the working door.
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The compound crusher is one kind of many crushers. The crusher refers to the machine that can produce final size of above 3mm. According to different working principle and the hardness of materials, there are some commonly used crushers, such as jaw crusher, impact crusher, cone crusher, compound crusher, roller crusher, hammer crusher, mobile crusher etc. Here is the introduction about compound crusher.
The compound crusher is the new high-efficiency crushing equipment that combines hammer crusher and impact crusher. It is a kind of perfect energy-efficient crushing equipment with large production capacity, high efficiency and big reduction ratio, which is widely applied in mining, construction and chemical industries. The compound crusher is ideally suitable for materials with high moisture content, because the finished sizes can be adjusted optionally; no grizzly bar is set so materials with much sand will not be blocked. The materials that cannot be broken will be discharged automatically once they enter the machine and will not damage the equipment. The compound crusher is of high efficiency, special structure, stable operation, low noise, easy maintenance and can be effortlessly changed wear parts after opening the door. These are the advantages of compound crushers. Then how does the compound crusher work?
The operation principles: The materials that fall into high-speed rotation impeller from the upper of machine bounce and break with the other surrounding umbrella-form matters at a high speed under the effect of high-rate centrifugal force. After the bounce, the materials will produce bump, friction and break repeatedly between impeller and cabinet. Then broken pieces will be discharged directly from the under part of the machine and they will form close-circuit time and again, finally be controlled by screening equipment to achieve the demanding final sizes.
During the process of using vertical compound crusher, people should get some safety knowledge. At first, people should check if the door of body is closed and let the machine stop gradually till be stable when open the door in case of danger. Then the crusher should start with loading nothing, the materials can be put into it after the machine operates normally. The feeding size of particles should meet the requirements; otherwise they will damage the machine. Next, if anything unusual happens in crushing process, people should stop immediately to review and the machine can reproduce after trouble shooting. Finally, people should add the lubricant oil to rolling bearings at regular time.