Ball mill improved in service and operate method

Ball mill improved in service and operate method

The mechanical alloying process was developed over thirty years ago for the production of Oxide Dispersion Superalloys. Many types of milling devices are used for mechanical alloying. Each type has limitations in terms of the specific needs of the mechanical alloying process. These limitations became more obvious when it was found that the product quality depends on the type of the milling device and the energy consumed in the grinding process.
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In the size reduction process of hard rock, a specific design of liner and lifter is used to control the grinding media movement and improve the sand maker comminution performance. In the mechanical alloying process, the liner and lifter are not commonly applied. This paper describes the design and characterization of an improved ball mill in which the ball movement can be controlled by using external magnets. This improved ball mill provides the impact energy of the attritor mill and the powder mixing of the rotating mill and has been tested in terms of particle size reduction and energy consumed in the grinding of limestone. We offers several seminars geared at educating your staff on your equipment for optimum performance. Separate seminar sessions are held for equipment maintenance and plant operations giving you the opportunity to focus in on your interests.
The improved ball mill shown in the exploded view of Figure 1 has a cylindrical chamber 12.5 cm in diameter and 8.75 cm wide made from paramagnetic austenitic stainless steel and is connected to a motor through a bearing block, pulley and a belt. The motor speed is variable. A number of hardened ferromagnetic stainless steel balls, 1.25 cm in diameter, are used as grinding media. An adjustable magnet holder is connected to the base plate. Standoff adjusting screws are fixed on the magnet holder to permit the adjustment of the distance between the outer periphery of the mill and the magnet positions. The face of the mill is made of to permit the monitoring of the ball movement while adjusting the magnetic field for each mode of operation of the improved ball mill. The critical speed of the mill was found to be 126 RPM
Feeders are available in sizes ranging from 36″ x 12′ up to 72″ x 34′, in a variety of models and configurations.
Severe duty (truck dump) models, built to absorb the impact from trucks dumping large stone, incorporate deep side jaw crusher plates and massive wide flange beam cross supports. Standard duty models offer lower profiles and are commonly used in portable applications with loader or excavator feed.

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