Crushing breaks down raw materials for use in mining and manufacturing. Wet and dry processes are used, and new equipment and uses for waste materials are being developed. Shredding breaks down raw materials into smaller pieces, which can be separated into useful components. Hacking can access valuable minerals in ore deposits. Materials processing is used to prepare building materials and natural processes can create comminuted products.
Crushing is the processing of materials to break down rock and other raw materials into particles and smaller component pieces. This is used in mining and manufacturing a wide range of products, including raw materials for construction and finished components. Companies can use both wet and dry processes, depending on the materials they are working with and how they intend to use them. Research and development in this area includes the invention of new equipment, better grading systems and new uses for waste materials.
In the shredding process, the workers pour the raw material into the grinding equipment. The equipment can hurl it against the walls of a drum to break it, chew it with heavy teeth, grind it into rolls, and use a variety of other methods to break it up. The broken material passes through a series of screens to separate the different components of interest as needed. This process can be continuous, allowing workers to keep adding raw material to get freshly ground material.
One reason to use hacking is to access valuable trapped minerals. Ore deposits usually include a mixture of items, some of which are more useful than others. A business can grind rock, clay blocks, and other materials to get the most useful and valuable components inside. Materials processing may also include crushing to increase surface area for chemical catalysts, rock used in filtration, and other materials. These materials may be required to meet standards set by a manufacturing organization or customer to ensure consistent and standardized products.
This process is also used to prepare materials such as fill sand, aggregate gravel for concrete, and roadbed construction materials. These materials must be uniform in size and texture to work effectively. Companies that prepare building materials can maintain shredding equipment to meet the needs of their customers. A series of fine filters allows them to classify products according to grain size and create a high degree of control so that customers get products that meet very particular specifications.
Even natural processes can create comminuted products. Fault lines typically break rocks, earth, and other materials into smaller pieces. Geologists can take samples to learn more about the activity in a specific location. Some of these samples may reveal deposits of useful materials. Researchers studying faulting and other geological activity can look at different comminution processes in nature to learn more about the processes behind the formation of natural aggregate materials such as sedimentary rock.
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