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There’s a dizzying array of factors that delineate different industries around the globe, defining labour as light or heavy industry, as mining or fabrication processes. The steps in each of these industries split into complex sub-stages that are hard to follow, but a common thread is shared among them all, the taking of a raw and tangible substance and its transformation into a refined product. Screening solutions are a primary method of accomplishing this challenging goal. Screens sort and filter raw matter. They separate water from dirt and aggregate, or divide different kinds of waste matter for recycling purposes. Indeed, they serve a multitude of purposes, transporting, separating, and grading materials from one stage of an industrial process to the next.

Screening technology is already heavily covered in mining. Feeders and screens sort ore and grade the coarse chunks of rock. They employ carefully timed assemblies comprising of exciters and motors to sort slurry and dewater a muddy flow of potentially valuable particulate matter. Food sorting and agricultural applications in general take a sideways shift in the terms used to describe the sorting process. This is an organic environment, and the operational dynamic is somewhat different, placing as much value on a sterile work space as on the sorting mechanism. Regardless of the terms used, whether the label is sieving or sorting, screening or filtering, the characteristics of the conveyed matter is the deciding factor in configuring the system. For example, a polyurethane assembly of screens and bumpers is perfectly acceptable for a mining setup, especially when coping with abrasion, but this form factor doesn’t apply to food screening.

A rotary sorting mechanism or a trommel screen configuration with slowly rotating components is the apt choice for handling fruit and vegetable. The parts rotate slowly and gyrate to sieve the foodstuff without bruising. The same assembly finds application in other food industries and agricultural divisions. The processing and separation of starch is handled in this manner, as is table salt and grain. In addition to the change of form factor, the sheer complexity inherent within the mechanism is magnified many times above what’s considered standard in heavy industry. Instead of two or three levels of sorting conducted on a plane of horizontal screens, there could be seven or more layers of screening, and the mesh properties sport perforations that can safely sieve any powdered material, from pharmaceutical products to powdered milk. Sanitation is a primary concern in the food industry, and all of these screens must meet or exceed FDA standards.

Further research is required to truly understand the depth of screening. The technology begins with mining and heavy industry, the separation of undesirable pollutants and raw waste, but it reaches untouched heights. Complex screening solutions employ screen meshes that size individual perforations on the micron scale, but they also employ visual identification of shaped products, of eggs and meat, grain and pills. This type of screening model calls for the ability to distinguish between finite weights and different colours.

Screening Technology Pty Ltd T/AS Hawk Machinery

Address: 7 Lantana St Blackburn North Vic 3130
Contact Person: Bohdan Blaszczyk
Phone: +61 3 9877 7777
Fax: +61 3 9877 8177
Mobile: 0411 099 989

Email: info@hawkmachinery.com.au

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