Screw conveying is based on a screw that turns around to convey products through a system of pipes. Dinnissen supplies systems with single or double screws and even concave screws (i.e. 2 to 4 screws that overlap) that allow you to convey products that are viscous or sticky or cake easily, such as cheese spread, filter cakes and wood chips. We supply screw conveying systems suitable for conveying tiny quantities to very large quantities per hour. For environments subject to rigorous hygienic requirements, Dinnissen supplies special systems fitted with screws that can be easily removed or with shaft-free screws, which can be cleaned quickly and easily. A screw conveying system with a low loading factor is extremely well-suited for conveying fragile products. Conveyor belt systems offer the advantage that they convey products without shaking them. This makes them suitable for conveying ingredients that are fragile or sticky or pose an explosion risk. The conveyor belt systems supplied by Dinnissen are very well aligned, which means that the conveyor belts will continue to run smoothly for a long period of time. We also make sure that the loading factor and tension applied to the belts are correct. In combination with our range of handling accessories customized to specific products (granules, flakes etc.), these systems ensure that the ingredients conveyed remain in place on the conveyor belt even in case of vertical or diagonal (up to 60°) transport. Chain conveying and disc conveying systems are based on plastic discs attached to a chain or cable. As the chain or cable is pulled through a system of pipes, the free-hanging discs push the ingredients through the system. Chain based and disc based conveying systems are especially useful for conveying products that are easily abraded, fragile or fluidizable and can achieve very high capacities (up to 300 tons per hour). Vibrating conveyors use a pipe or gutter shaped component through which ingredients are conveyed with the help of vibrations. Such systems contain no moving parts, making them relatively easy to clean. This type of conveying is particularly suited for fragile powders and granules. Elevators are based on wear resistant containers mounted on a non-stretch belt or durable chain. Depending upon the specific situation, elevator based conveying can be carried out vertically or in a Z- or U-shaped pattern. Shuttle cups can also be used for granulates or very fragile products. Elevator based systems are reliable, energy-efficient, less susceptible to contamination and maintenance friendly. They are suitable for conveying ingredients that are sensitive to wear and tear, abrasion and breakage, such as sugar, compound feeds, chemicals, chalk, sand and cement. Dinnissen supplies elevator systems and can also ensure that an appropriate pre-dosing system is installed. The containers are available in polished or unpolished stainless steel, plastics and in wear resistant steel.
Written by Dinnissen Process Technology
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