Sorting and grading systems topics such. seafood, such as shrimp

摘要

A sorting system, e.g. for sorting objects such as , e.g. shrimps, has a conveyor belt driven by a chain 13, 13a, 13b which consists of at least two groups of transport rollers 1, 2, wherein each roller in a group has the same diameter, and wherein the diameter of the transport rollers relative to the diameter of the transport rollers of another group may be different. There is a certain spacing between the transport rollers, defining a gap 19 through which objects, such as shellfish, of a certain size corresponding to the maximum gap width may pass. Via its own belt and a drive wheel 11, 12 which is arranged on the transport rollers at the ends outside the chain, and which is in frictional contact with the belt, each group of transport rollers may be caused to rotate at a pulsating speed, which may be clockwise or counterclockwise, via its won drive unit. By varying the vertical position of the transport rollers 11, 12 in a group, which may take place by adjusting the vertical position of the associated belt relative to the vertical position of the transport rollers of another group, it is possible to change and adjust the gap width 19 between the transport rollers and thereby the maximum size of shellfish which must be able to pass through the gap, in a simple manner. Preferably, the number of groups is two, and the diameter of the one group of transport rollers 1 may be different from the diameter of the other group of transport rollers 2. A system for sorting objects, e.g. shellfish, such as shrimps, consists of serially connected sections of sorting systems according to the invention.