CHAENG's ball mill is based on standard modules and the highly flexible design can be adapted to your requirements. The mill comprises the following parts. 

Mill body

The mill body consists of an all-welded mill shell and a T-sectional welded-up slide ring at either end, the cylindrical part of which is welded onto the ends of the shell. The mill shell has four manholes, two for each grinding compartment.

Slide shoe bearings

1.Much simpler foundations and reduced installation height - lower civil costs

2.Uncomplicated alignment of base plates for lower installation time and cost

3.Independent installation of slide shoes and casing

4.Simple installation of casing

5.No oil spillage from bearing casing – low maintenance time and cost

6.Easy replacement of slide shoes if needed – faster replacement, lower downtime

7.No risk for blocking of moveable bearing since rollers are removed

Each slide ring runs in a bearing with two self-aligning and hydrodynamically lubricated slide shoes. One of the slide shoes at the drive end holds the mill in axial direction. In the others, the slide rings can move freely in axial direction to allow for longitudinal thermal expansion and contraction of the mill body.

The slide shoes are water-cooled, and each bearing is provided with a panel-enclosed lubrication unit including oil tank, motorised low- and high-pressure oil pumps, as well as an oil conditioning circuit with motorised pump for heating/cooling and filtration of the oil.

Inlet

The stationary steel plate inlet duct leads the venting air into the mill. It is equipped with a manually operated throttle valve and a pressure monitor to adjust the pressure at the inlet end, thus preventing dust emission from the inlet. The feed chute is lined with bolted-on wear plates and slopes down through the air duct to the mill inlet opening.

Outlet

The stationary steel plate outlet casing is insulated with mineral wool and provided with seals between the casing and the rotating outlet cone.

Controls

The more control you have over the mill, the better your grinding efficiency is likely to be. Our ball mills include monitoring systems to continuously measure the material and air temperatures as well as the pressure at the mill exit. The venting of the mill is adjusted by a damper in the inlet to the mill fan. And the material fill level is continuously monitored by means of sensors. For ball mills operating in closed circuit, the circulation load is monitored by weighing the flow of reject material from the separator. These measures ensure you achieve optimum mill performance, giving you the quality, efficiency, safety and reliability that you need.