Some are similar to the Corrugated Plants. With energy bills soaring higher, the Sequential System shown in the illustration below and Belt Conveyor Systems offer lower Horsepower solutions for the high speed cutters.
Traditionally, independent fan systems are used for handling the scrap being generated by each production machine in corrugated sheet plants. These machines can range from Flexo’s to Die Cutters. Initially, the scrap is gathered with the use of a conveyor or air pan placed underneath the machines. They are used for directing the collected scrap to one side of the machine at which point it can be captured pneumatically with the fan system and conveyed to a cyclone or separator for baling. All conveying air being used will then be directed to a filter for cleaning. This type of system while being highly effective also utilizes the most horsepower and energy.
Due to the wide variety of waste product sizes, Shredder manufactures provide different width models allowing for the most efficient feed rate. Therefore, the selection of a shredder is normally based on the size of the largest reject sheet being produced. However, with the larger width models (those greater than the normal 62" model), an increase in the fan system used for conveying purposes is increased as well. This includes the required air volume and horsepower. Some may prefer to lose feeding efficiency and feed the wider rejects "long ways" into a 62" shredder. In any event ASDI offers many solutions to the concerns of its customers.
In lieu of independent fans being used on each machine, a Sequential System can be used sharing a single fan source saving on energy without decreasing production.
Conveyor belts can be used to convey the scrap directly to the baler or used to collect scrap from several machines whereby one hood can be used for a single fan system.
Conveyor belts can be used to convey the scrap directly to a shredder handling the sheet waste as well. Once shredded a single air system would be used to convey all of the scrap to the baler.
For the highest energy savings, Conveyor belts can be used in a trench and can feed a baler directly.