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Stone Raymond Roller Mill

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Stone Raymond roller mill is widely used in quartz, calcite, potassium feldspar, talc, marble, limestone, dolomite, translucent stone, lime, activated clay, activated carbon, kaolin, cement, phosphate rock, gypsum, graphite, glass, manganese ore,  copper ore, refractory, thermal insulation material, coal. The Mohs hardness of coke, coal powder, carbon black, pottery clay, bone powder, titanium dioxide, iron oxide, etc. is below 9.3 grade, and the humidity is below 6%. More than 300 kinds of non-flammable and explosive materials in mineral, construction, chemical and fertilizer industries are processed by high-fineness milling. The particle size of the finished product is within 60-325 meshes (0.125 mm-0.044 mm), according to the requirements. For a small part of the material, the maximum fineness can reach 1000 meshes (0.013 mm).

Main structure and parts

The structure of the Raymond roller mill is mainly composed of a main engine, an analyzer, a fan, a finished cyclone separator, a fine powder cyclone separator and an air duct. The main engine is composed of frame, air inlet volute, shovel cutter, grinding roller, grinding ring and cover.

Working principle

When working, the crushed material is added into the machine from the hopper on the side of the hood, and revolves around the vertical axis by means of the roller grinding device suspended on the plum blossom rack of the main machine. At the same time, it rotates itself. Because of the centrifugal force when rotating, the roller swings outward and is pressed on the grinding ring, so that the shovel can lift the material and send it to the grinding roller and the grinding ring. Between them, the purpose of crushing materials is achieved by rolling and rolling of grinding rollers.

Advantages and features

1. Strong system and high screening rate: the whole machine is three-dimensional structure, occupies a small area and has strong system. It can form an independent production system from rough processing of raw materials to conveying to powder making and packaging. The fineness of the finished powder is uniform and the pass-through screening rate is as high as 99%.
2. High grinding efficiency: Stone Raymond roller mill grinding efficiency, high-pressure spring equipment, improve production efficiency.
3. Convenient operation and maintenance: With centralized control of the electrical system, the workshop can basically achieve unattended operation. Using electromagnetic vibration feeder feeding, continuous and uniform, easy to adjust, save oil and electricity, easy to maintain.
4. Smooth transmission and high wear resistance: The machine adopts hermetic gearbox and pulley to drive smoothly and reliably. Core parts are made of high-performance wear-resistant materials with high wear resistance and cost savings.
As a manufacturer, our newly designed stone Raymond roller mill is more practical, the hardness and wear resistance of grinding rolls, grinding rings and shovels are improved, the service life is generally increased by more than two times, the production cost is reduced, the equipment runs smoothly and without abnormal phenomena, the sealing and lubrication performance of special lubricant paste is good, and the oil-saving is increased by 60%. Performance, operation rate is over 95%, output per hour is increased by over 40%, and economic benefit is good.
Stone Raymond roller mill

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