A ball mill, a type of grinder, is a cylindrical device used in grinding (or mixing) materials like ores, chemicals, ceramic raw materials and paints. Ball mills rotate around a horizontal axis, partially filled with the material to be ground plus the grinding medium. Different materials are used as media, including ceramic balls, flint pebbles and stainless steel balls. An internal cascading effect reduces the material to a fine powder. Industrial ball mills can operate continuously fed at one end and discharged at the other end. Large to medium-sized ball mills are mechanically rotated on their axis, but small ones normally consist of a cylindrical capped container that sits on two drive shafts (pulleys and belts are used to transmit rotary motion).Chinaware ball mill is mainly used for mixing and milling materials, with even output fineness and energy-saving. Not only is the wet mill, but also for the wet mill. The machine could use the different line according to the product requirement to satisfy different requirement. The milling fineness depends on the milling time, the motor start by the coupling reduce voltage, lower the starting electricity, the structure is pided into integral type and freestanding type, advantages of product is lower investment, energy saving, structure novelty, simply operated, used safely, ability even etc. It is suitable for mixing and grinding common and particular materials. User could choose the proper type and line, media material depend on material ratio, rigidity, and output size etc.
Ball mill is formed by cylinder, feeding part, discharging part, transmission part and main bearing. The central hollow shaft is cast steel, the inner liner can be changed, the rotation big gearwheel is made by cast hobbling processing, and there are wearable liners with favorable anti-wear ability. Here, we are going to talk about two important parts of the ball mill.
Cylinder: The cylinder of ball mill is welded by several steel plates of 12-15mm thickness. Both ends of the cylinder are welded by flange plates so that the feed end cap and the discharge end cap of the cast steel can be connected to. There is replaceable lining plate in the cylinder. To keep the close contact of lining plate and cylinder inner wall and buffer the steel ball’s impact to the cylinder, there is plywood between the lining plate and the cylinder inner wall. For convenience, there is manhole on the cylinder, mostly is rectangle with length of 350~550mm, to replace lining plate and check the cylinder interior condition.
Main bearing: The hollow shaft neck of ball mill rests on the main self-alignment nucleus sliding bearing. The main bearing consists of bottom chuck, bearing cap, bottom bearing shell with Babbitt metal casted on surface, cylinder dowel and seal joint. The bearing block and bearing cap are made into spherical surface to make up for the installation error. There is cylinder dowel in the sphere center of the foundation and bearing bush which can protect the bearing bush rolling out of the bearing block. The oil in pipe infuses to the axis neck fan shaped by oil nozzle to lubricate the bearing, and then flows back to the oil tank by oil discharge pipe.
Symons cone crusher : http://www.mine-crusher.com/conecrusher.htm
Raymond mill : http://www.hxjq-crushers.com/raymond-mill.html
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