Milling and grinding materials is an integral part in many industrial processes, both in a large and small scale operations. In some cases, a grinding mill can be the most expensive machine in the entire process. Installing one for sustained use, however, is a great investment for cost-effective processing of materials, especially if grinding and milling is required.
A grinding mill is the ideal tool when comes to size reduction equipment, mostly used next to a crusher where finer products are desired in milling and grinding.
Milling is distinct from crushing or granulation, which involves reduction to a smaller size. Milling, or fine grinding, is the process of reducing materials to fine or very fine size powder. A grinding mill comes in different types for grinding and milling purposes, including the ball mills, rod mills, and attrition mills. Some mills are designed to grind a wide variety of materials while others are suitable for specific grinding requirements. At CMS, we can help your enterprise determine the best available machinery.
When choosing a particular model for milling and grinding, there are numerous characteristics and requirements to be taken into account. These include the following:
- Capacity - also known as throughput, this is given in tons per hour for large mills while kilos in small ones. The size of the grinding mill required is determined by the scale of the operation.
- Reduction ratio and final size requirement - this influences the choice whether a single mill would be enough or a multi-stage grinding process is necessary. Typically, the higher the reduction ratio, the greater the probability for a multi-stage grinding.
- Material properties - this is perhaps the most deciding factor for a mill choice. It is very crucial that the properties of the material that has to be ground match the mill specifications.
- Product type (wet or dry) - wet products such as slurries can be milled, in fact milling them can save power and produce less dust. However, only the tumbling mills are the most applicable machine for wet grinding. In certain circumstances though, other kinds of grinding mill can also be used for grinding wet products.
- Batch or continuous operation - where capacity is high and loading or unloading made easier, mills have to be designed to enable continuous milling. Some mills though are made to be applied for batch loads only.
- Portable or stationary - a grinding mill can be portable or fixed permanently in place. This depends on the nature of the application. For operations which move often, a portable machine is more useful.
Want to learn more about industrial milling and grinding, installations or expert advice? Contact CMS today to book a consultation.