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    • 1. 发明授权
    • Twin screw extruder for batch freezing
    • 双螺杆挤出机,用于批量冷冻
    • US5713209A
    • 1998-02-03
    • US736179
    • 1996-10-24
    • Dennis A. HuncharTerry G. ReishusBernhard Van LengerichJose Tadeo V. de CastroKenneth A. FochtChaitanya KanojiaClifford S. LansilChristopher T. Zirps
    • Dennis A. HuncharTerry G. ReishusBernhard Van LengerichJose Tadeo V. de CastroKenneth A. FochtChaitanya KanojiaClifford S. LansilChristopher T. Zirps
    • A23G9/12A23G9/20A23G9/22A23G9/28
    • A23G9/12A23G9/20A23G9/224A23G9/282
    • An apparatus (10) for at least partially freezing a food product which is at least partly liquid in a batch mode is disclosed including a double screw extruder (12) including first and second, substantially intermeshing, self-wiping screws (14, 16) rotatably received in a figure 8-shaped barrel (30) with minimal clearance. In the preferred form, the freezing block (20) includes multiple refrigerant channels (36) spaced closely and in the most preferred form spaced approximately 0.32 centimeters from the barrel (30) and from each other. Thus, the refrigeration system can change the barrel surface temperature rapidly and specifically in approximately one second when the food product is introduced into the barrel (30). A ratio between the radius of the flight (40) at the crest (42) to the radius at the root (38) of the screws (14, 16) is in the order of 1.04 to reduce the total amount of product in the barrel (30) at any given time and decreasing the product residence time in the extruder (12). In the most preferred form, the food product is aerated and is supplied in discrete volumes from at least one and preferably from multiple sources (48), with the supply of discrete volumes for individual servings being delayed to substantially prevent intermixing in the extruder (12).
    • 公开了一种用于至少部分地冷冻以间歇模式至少部分为液体的食品的装置(10),其包括双螺杆挤出机(12),所述双螺杆挤出机包括第一和第二,基本相互啮合的自擦拭螺钉(14,16) 以最小的间隙可旋转地容纳在图形8形的桶(30)中。 在优选的形式中,冷冻块(20)包括多个制冷剂通道(36),该制冷剂通道(36)以相对于筒体(30)彼此间隔大约0.32厘米的最优选形式。 因此,当食品被引入枪管(30)时,制冷系统可以快速且具体地在大约一秒钟内改变枪管表面温度。 在顶部(42)处的飞行(40)的半径与螺钉(14,16)的根部(38)处的半径之间的比率为1.04,以减少桶中产品的总量 (30),并减少挤出机(12)中的产物停留时间。 在最优选的形式中,食品是充气的,并且从至少一个并且优选地来自多个源(48)以不同的体积供应,供应用于各个部件的离散体积被延迟以基本上防止在挤出机(12)中的混合 )。