an EXPANDING AND EXTRUDING APPARATUS

摘要

An expanding and extruding apparatus comprises an extruding cavity (3). An extruding screw (1) associated with the extruding cavity is provided in the extruding cavity. A stabilizing and extruding member (4) connected to the extruding cavity is provided at the output of the extruding screw, an extruding hole (8) being coaxial with the extruding screw is provided on the stabilizing and extruding member. An extruding nozzle (19) is provided at one side of the stabilizing and extruding member and a cutter (20) driven by a motor abuts against the outside of the extruding nozzle. A heat exchanger and a converging member (17) connected each other axially are provided between the stabilizing and extruding member and the extruding nozzle. A converging hole (18) communicating with the extruding nozzle is provided in the converging member. The heat exchanger comprises some exchanging pipes which are throughout its case (10) parallelly and the exchanger and the case are connected tightly. The case is equipped with a cooling-medium inlet (14) and a cooling-medium outlet (12). Every exchanging pipe communicates the extruding hole and the converging hole respectively. The expanding and extruding apparatus can improve the maturing quality and control the expansion degree of products so as to stabilize their feature in the food and forage industry.