An arrangement for conveying product material to a weighing system includes an infeed for product material to be weighed and at least one dosing mechanism for controlled conveying of product material portions from the infeed to a weighing system. The dosing mechanism includes a motor-driven transport screw formed as a helically-shaped rod positioned in an open trough for conveying the product material from the infeed to the weighing system, and a control unit for controlling the motor in order to deliver a desired portion of product material to the weighing system. This arrangement provides a gentle, well-defined conveyance of product materials that are not suited for vibrational conveyance or conveyance by a screw conveyor in a tubular housing.
A method of preparing shrimps includes boiling them at a pressure exceeding atmospheric pressure, at a temperature exceeding the boiling temperature of water at atmospheric pressure, for keeping the meat of the shrimps in a compressed state while causing the meat to solidify and loosen from the shells of the shrimps. The shrimps are then rapidly cooled for causing the meat to be separated from the shells in an area behind the head of the shrimp and above the tail. Subsequently, the shrimps are peeled by mechanically opening the shells for allowing the meat contained within the shells to fall out. The meat is separated from the remains of the shrimps, including shell parts and eggs, by introducing the meat and remains into a separation liquid, causing the meat to float on the separation liquid while allowing the remains to sink. Finally, the meat is removed from the separation liquid.
An arrangement for conveying product material to a weighing system includes an infeed for product material to be weighed and at least one dosing mechanism for controlled conveyor of product material portions from the infeed to a weighing system. The dosing mechanism includes a motor-driven transport screw formed as a helically-shaped rod positioned in an open trough for conveying the product material from the infeed to the weighing system, and a control unit for controlling the motor in order to deliver a desired portion of product material to the weighing system. This arrangement provides a gentle, well-defined conveyance of product materials that are not suited for vibrational conveyance or conveyance by a screw conveyor in a tubular housing.