PRESS EXTRUDER FOR IMPROVED QUALITY PASTA PRODUCTS MANUFACTURE Russian patent published in 2018 - IPC A21C1/14 A23P30/20 

FIELD: food industry.

SUBSTANCE: extruder body contains a screw with a drive outlet shaft on one side and a moulding device on the other side. The screw helical surface is divided into three steps. The first step is connected to the dough mixer. The second step is the zone of dosed supply of the dough mass to the vacuum zone of the third step, above which an accumulating chamber is installed in the extruder body to collect flour waste from the vacuum zone and a water jacket connected to the water source. In the interturn space of the third step of the screw, an antifriction tape-like insert with low adhesion properties is installed, for example, a fluoroplastic one. The screw is made of bimetal material which, on the helical surface side, has heat conductivity coefficient 2.0-2.5 times exceeding the internal material heat conductivity coefficient. The output shaft of the extruder drive is equipped with a three-phase electric motor with a speed regulator made in the form of a powder electromagnetic clutch unit, as well as a temperature controller with a temperature sensor including a comparison unit and a task unit. The comparison unit is connected to the input of an electronic amplifier equipped with a nonlinear feedback unit. The output of the electronic amplifier is connected to the input of a magnetic amplifier with a rectifier, which is connected to the rotation speed regulator. The temperature sensor is located in the storage chamber and is connected to the comparison unit of the temperature controller.

EFFECT: power consumption of the extruder is reduced.

1 dwg