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1. 发明授权

US06609819B2 Twin screw extruder with conical non-parallel converging screws 有权
标题翻译：双螺杆挤出机，带锥形非平行会聚螺丝
公开(公告)号：US06609819B2
公开(公告)日：2003-08-26
申请号：US10068181
申请日：2002-02-05
申请人： Bobbie W. Hauck , Lavon G. Wenger
发明人： Bobbie W. Hauck , Lavon G. Wenger
IPC分类号： B29B748
CPC分类号： B29C47/402 , A23P30/20 , B29B7/801 , B29C47/0014 , B29C47/0801 , B29C47/38 , B29C47/60 , B29C47/6012 , B30B9/16 , B30B9/26
摘要： An improved twin screw extruder device (14) is provided which is capable of producing a wide variety of high quality extrudates having greatly varying final properties, without the need for extensive machine modifications. The extruder (14) includes a barrel (16) together with a co-rotating twin screw assembly (22). The assembly (22) is made up of a pair of screws (50, 52) having central, tapered shafts (54, 56) equipped with outwardly extending helical flighting (58, 60); the screws (50, 52) are non-parallel and are positioned so that the flighting (58, 60) thereof is intercalated along the length of the screws (50,52). The flighting is of specialized configuration and tapers along the length of the screws (50, 52) preferably at an angle of taper different than that of the shafts (54, 56); moreover, the width of the outer flighting surfaces (70, 72) increases along the length of the shafts (54, 56). This screw geometry defines a series of alternating upper and lower close-clearance high-pressure nip areas (78) defined by the flighting (58, 60) which serves to propel an extrudable mixture forwardly towards the outlet end (20) of the barrel (16). However, passageways (80) and kneading zones (82) are also defined between the screws (50, 52), which assures full mixing, shearing and cooking of the material. The extruder device (14) is capable of producing high density sinking aquatic feeds as well as expanded, low density products merely by changing the rotational speed of the screws (50, 52) together with appropriate temperature control. In another embodiment, a fluid extraction extruder (138) is provided having a specialized extruder head (140) including an outer shell (144) and an inner, elongated, slotted sleeve (152).
摘要翻译：提供了一种改进的双螺杆挤出机装置（14），其能够生产具有极大变化的最终性能的各种各样的高质量挤出物，而不需要大量的机器修改。挤出机（14）包括与同向旋转的双螺杆组件（22）一起的筒体（16）。组件（22）由一对具有中心的锥形轴（54,56）的螺钉（50,52）组成，所述锥形轴配备有向外延伸的螺旋形飞行（58,60）; 螺钉（50,52）不平行并且被定位成使得其沿着螺钉（50,52）的长度插入其中（58,60）。沿着螺钉（50,52）的长度优选地以与轴（54,56）的锥度不同的锥度的角度，排出专门的构造和锥度; 此外，外侧飞行表面（70,72）的宽度沿轴（54,56）的长度增加。该螺钉几何形状限定了一系列交替的上部和下部闭合间隙高压压区（78），其由所述排放（58,60）限定，用于将可挤压混合物向前推向筒的出口端（20） 16）。然而，通道（80）和捏合区域（82）也被限定在螺钉（50,52）之间，这确保了材料的完全混合，剪切和烹饪。挤出机装置（14）能够通过在适当的温度控制下改变螺杆（50,52）的转速而产生高密度下沉水生饲料以及膨胀的低密度产品。在另一个实施例中，提供流体提取挤出机（138），其具有包括外壳（144）和内部细长开槽套筒（152）的专用挤出机头（140）。

2. 发明授权

US5939124A Method of extrusion cooking an edible material 失效
标题翻译：挤压烹饪食用材料的方法
公开(公告)号：US5939124A
公开(公告)日：1999-08-17
申请号：US848817
申请日：1997-05-01
申请人： Lavon G. Wenger
发明人： Lavon G. Wenger
IPC分类号： A23K1/00 , A23K1/18 , A23L1/00 , A23P1/12 , B29C47/60 , B30B11/00 , B30B11/24 , A23P1/00
CPC分类号： B30B11/24 , A23K40/20 , A23K50/00 , A23K50/42 , A23K50/80 , A23P30/20 , B30B11/005 , B30B11/243 , B30B15/34 , B29C47/0009 , B29C47/60
摘要： Improved short length extrusion cooking devices (10) are provided which can achieve product throughput and quality characteristics of conventional long-barrel extruders. The short length extruders (10) of the invention include a relatively short barrel (14) having an inlet (18) and an endmost extrusion die (20). An elongated, helically flighted axially, rotatable screw assembly (22) is positioned within the barrel (14) and is coupled to motive means (39, 39a) for rotation of the assembly (22) at a speed of at least about 500 rpm. The device (10) may include an internal, apertured flow-restricting device (60, 110) which defines a mid-barrel choke point for the material being processed. An alternate extruder (120) is configured without a mid-barrel restriction and is designed to operate at essentially atmospheric internal pressure throughout the majority of the length of barrel (122) with a significant pressure rise in the final head (134) adjacent the extrusion die. Preferably, the barrel (14, 122) has an internal bore of generally frustoconical configuration with an effective length to maximum diameter ratio (L/D) of at least about 6. Novel extrusion processes and products are also provided, using extremely short extrusion barrel retention times to give cooked extrudates having essentially no amino acid or vitamin nutrient losses, and/or dense, highly cooked, low moisture feeds.
摘要翻译：提供了改进的短长度挤压烹饪装置（10），其可以实现常规长筒挤出机的产品产量和质量特性。本发明的短长度挤出机（10）包括具有入口（18）和最末端的挤出模具（20）的相对较短的筒体（14）。细长的，螺旋形旋转的轴向可旋转的螺丝组件（22）定位在筒体（14）内并且联接到动力装置（39,39a），以用于以至少约500rpm的速度旋转组件（22）。装置（10）可以包括内部有孔流动限制装置（60,110），其限定用于待处理材料的中筒阻塞点。替代的挤出机（120）构造成没有中筒限制，并且被设计成在桶的整个大部分长度（122）内在基本上大气压下运行，而最终的头部（134）中邻近挤压件死。优选地，筒体（14,122）具有大致截头圆锥形构造的内孔，其具有至少约6的有效长度与最大直径比（L / D）。使用极短的挤出筒也提供了新的挤出工艺和产品保留时间以产生基本上不具有氨基酸或维生素营养物质损失的煮熟的挤出物，和/或致密的，高度熟化的低水分进料。

3. 发明授权

US5778558A Pellet cooling method and apparatus using alternate hot and cool air streams 失效
标题翻译：颗粒冷却方法和使用交替的热和冷空气流的设备
公开(公告)号：US5778558A
公开(公告)日：1998-07-14
申请号：US786867
申请日：1997-01-23
申请人： LaVon G. Wenger , Douglas S. Clark , Nicholas B. Scott
发明人： LaVon G. Wenger , Douglas S. Clark , Nicholas B. Scott
IPC分类号： A23K1/20 , F26B17/14 , F26B25/10 , F26B3/00
CPC分类号： F26B17/14 , F26B25/10
摘要： A pellet conditioning device (10) for the cooling and/or drying of preformed discrete pellets (148) is provided which includes an upright pellet-receiving bin (12) with a dual grate assembly (18) therein. The assembly (18) includes a stationary first grate comprising a plurality of upright, apertured grate wall members (86), and a shiftable second grate including a plurality of elongated, obliquely oriented plates (106) located between and in spanning relationship to adjacent pairs of the wall members (86). Shifting structure (20) is provided for selective and sequential translational, rectilinear shifting movement of the lower margins (110) of the plates (106) so as to successively open and close a pellet passageway (117) adjacent each lower margin (110). A duct and fan arrangement (38) is also provided with the bin (12) so as to draw cooling air currents through the grate assembly (18) and pellets (148) therein. The plates (106) may also be shifted upwardly to their maximum extent in order to dislodge pellet bridges above the grate assembly (18). In another embodiment a conditioning device (12a) includes alternately operable hot and cool air introduction assemblies (152, 154) disposed along the opposed ends of bin (12a). In operation, relatively hot air currents are delivered beneath the grate assembly (18) via assembly (152), whereupon the later is closed; the cool air inlet assembly (154) is then opened so as to cause introduction of ambient air into and through the bin (12a).
摘要翻译：提供了一种用于冷却和/或干燥预成型离散颗粒（148）的颗粒调节装置（10），其包括在其中具有双格栅组件（18）的直立颗粒接收容器（12）。组件（18）包括固定的第一格栅，该固定的第一格栅包括多个竖立的，有孔的格栅壁构件（86）和可移位的第二格栅，该第二格栅包括多个细长的倾斜取向的板（106）的壁构件（86）。提供移位结构（20）用于板（106）的下边缘（110）的选择性和顺序平移，直线移动运动，以便连续地打开和关闭每个下边缘（110）附近的颗粒通道（117）。管道和风扇装置（38）还设置有箱（12），以便将冷却空气流通过炉排组件（18）和其中的颗粒（148）。板（106）也可以向上移动到其最大程度，以便移除格栅组件（18）上方的颗粒桥。在另一个实施例中，调节装置（12a）包括沿着箱体（12a）的相对端设置的可互换操作的热和冷空气引入组件（152,154）。在操作中，通过组件（152）在炉排组件（18）下面传送相对热的气流，随后关闭; 然后打开冷空气入口组件（154），以便使环境空气引入并通过箱体（12a）。

4. 发明授权

US5114488A Extrusion method and apparatus for acid treatment of cellulosic materials 失效
标题翻译：纤维素材料酸处理挤出方法和装置
公开(公告)号：US5114488A
公开(公告)日：1992-05-19
申请号：US279852
申请日：1988-12-05
申请人： Gordon R. Huber , LaVon G. Wenger , Bobble W. Hauck , Galen J. Rokey , Lawrence E. Schmelzle , Timothy R. Hartter
发明人： Gordon R. Huber , LaVon G. Wenger , Bobble W. Hauck , Galen J. Rokey , Lawrence E. Schmelzle , Timothy R. Hartter
IPC分类号： B30B11/22 , B30B11/24 , C13K1/02
CPC分类号： B30B11/24 , B30B11/221 , C13K1/02
摘要： An improved, low cost, energy efficient extrusion device and method for processing of cellulose, hemicellulose, and like fiber-bearing materials is described which includes a pretreatment extrusion zone and a reaction extrusion zone separated by a pressure sensitive variable die. The method hereof includes the steps of extruding cellulosic material through the pretreatment zone at an elevated pressure and temperature, passing the material into the reaction zone where it is mixed with an acid and is processed at a lower pressure and temperature than in the pretreatment zone, and extruding the material through a final extrusion die. The surging and blowing usually experienced with extrusion of fibrous material is drastically reduced by the unique construction of the extruder die members. The cellulosic material may be hydrolyzed to simple sugars in accordance with the method and apparatus hereof with a minimum of acid degradation of the extrusion equipment. The sugars produced from the cellulosic material may in turn be converted into ethanol or other usable fuels by the process of fermentation.
摘要翻译：描述了一种改进的，低成本的能量高效的挤出装置和用于加工纤维素，半纤维素等纤维载体材料的方法，其包括预处理挤出区和由压敏变量模分隔的反应挤出区。其方法包括以下步骤：在升高的压力和温度下将纤维素材料挤压通过预处理区域，使材料进入反应区域，在其中与酸混合并在比预处理区域更低的压力和温度下处理，并通过最终的挤压模挤出材料。通过挤出模具构件的特殊结构，纤维材料的挤出通常经历的浪涌和吹风大大降低。纤维素材料可以根据本发明的方法和装置水解成简单的糖，同时挤出设备的酸降解最少。由纤维素材料生产的糖又可以通过发酵过程转化成乙醇或其他可用的燃料。

5. 发明授权

US4728367A Extrusion method and apparatus for acid treatment of cellulosic materials 失效
公开(公告)号：US4728367A
公开(公告)日：1988-03-01
申请号：US914553
申请日：1986-10-01
申请人： Gordon R. Huber , LaVon G. Wenger , Bobbie W. Hauck , Galen J. Rokey , Lawrence E. Schmelzle , Timothy R. Hartter
发明人： Gordon R. Huber , LaVon G. Wenger , Bobbie W. Hauck , Galen J. Rokey , Lawrence E. Schmelzle , Timothy R. Hartter
IPC分类号： B30B11/22 , B30B11/24 , C13K1/02 , B01J3/03 , C13K1/06
CPC分类号： C13K1/02 , B30B11/221 , B30B11/24
摘要： An improved, low cost, energy efficient extrusion device and method for processing of cellulose, hemicellulose, and like fiber-bearing materials is described which includes a pretreatment extrusion zone and a reaction extrusion zone separated by a pressure sensitive variable die. The method hereof includes the steps of extruding cellulosic material through the pretreatment zone at an elevated pressure and temperature, passing the material into the reaction zone where it is mixed with an acid and is processed at a lower pressure and temperature than in the pretreatment zone, and extruding the material through a final extrusion die. The surging and blowing usually experienced with extrusion of fibrous material is drastically reduced by the unique construction of the extruder die members. The cellulosic material may be hydrolyzed to simple sugars in accordance with the method and apparatus hereof with a minimum of acid degradation of the extrusion equipment. The sugars produced from the cellulosic material may in turn be converted into ethanol or other usable fuels by the process of fermentation.

6. 发明授权

US4935183A Method of extruding material through a twin-screw extruder having respective conical nose screw sections 失效
标题翻译：通过具有各自的锥形鼻螺钉部分的双螺杆挤出机挤出材料的方法
公开(公告)号：US4935183A
公开(公告)日：1990-06-19
申请号：US382320
申请日：1989-07-20
申请人： LaVon G. Wenger , Bobbie W. Hauck , Timothy R. Hartter
发明人： LaVon G. Wenger , Bobbie W. Hauck , Timothy R. Hartter
IPC分类号： B30B11/24
CPC分类号： B30B11/243 , B29C47/6012 , B29C47/6025 , B29C47/6056
摘要： A greatly improved twin screw extruder and method are disclosed which significantly reduce extruder wear through provision of separate, complemental, interfitted frustoconical screw and barrel sections adjacent the outlet end of the extruder barrel which create an even, bearing-type support for the rotating screws as material passes through the apparatus. In preferred forms, the screws are intermeshed along the majority of the extruder barrel, but diverge at the region of the final frustoconical screw sections and are received within respective complemental barrel sections; in this fashion the material being processed is split into juxtaposed, non-communicating streams, and thereby evenly flows around and supports the adjacent screw section to lessen the tendency of the screws to separate themselves and come into wearing contact with the surrounding barrel walls. The extruder can be used to process a wide variety of plant-derived materials, but is particularly useful for viscous substances (e.g., soy concentrates and isolates) which can be difficult to handle with mono-screw extruders.
摘要翻译：公开了一种大大改进的双螺杆挤出机和方法，其通过在挤出机筒的出口端附近提供单独的，互补的，互相配合的截头圆锥形螺杆和筒部分来显着地减少挤出机的磨损，其产生用于旋转螺杆的均匀轴承型支撑材料通过设备。在优选形式中，螺钉沿着挤出机机筒的大部分相互啮合，但是在最终的截头圆锥形螺纹部分的区域处发散，并且被接收在相应的互补筒部分内; 以这种方式，被处理的材料被分成并置的不连通的流，从而均匀地流动并支撑相邻的螺杆部分，以减少螺钉分离自身并与周围的桶壁磨损的倾向。挤出机可用于处理各种植物来源的材料，但对于单螺杆挤出机难以处理的粘性物质（例如大豆浓缩物和分离物）特别有用。

7. 发明授权

US4286058A Enzymatic conversion of high moisture shear extruded and gelatinized grain material 失效
标题翻译：高水分剪切挤出和糊化的谷物材料的酶转化
公开(公告)号：US4286058A
公开(公告)日：1981-08-25
申请号：US91798
申请日：1979-11-06
申请人： Lavon G. Wenger , Galen J. Rokey , Itamar Ben-Gera
发明人： Lavon G. Wenger , Galen J. Rokey , Itamar Ben-Gera
IPC分类号： A21B5/00 , A21C11/20 , A23P1/12 , C08B30/16 , C12P19/14
CPC分类号： C08B30/16
摘要： Methods and apparatus for high-moisture extrusion of starch-bearing grains is disclosed which yield cooked, gelatinized products suitable for short-time enzymatic conversion to sugars, and particularly those subject to fermentation to alcohol; the high production rates afforded through use of extrusion equipment, and the short conversion time of the resultant products, is particularly advantageous for economical alcohol manufacture, both for alcoholic beverages and for use as fuel. Preferably, whole or cracked starch-bearing grain is presoaked in an excess of water to a substantial moisture level, and the resultant slurry is fed to a specialized extruder. In the extruder the water is at least partially separated and carried from the process, and the grain is highly cooked and gelatinized for subsequent conversion. The overall apparatus preferably includes presoak tanks for the grain, a grain-conveying feeder, an extrusion cooker, and enzyme conversion tanks; the apparatus is advantageously sized for batch-continuous operations to produce a continuous flow of sugars. Conversion times for the gelatinized starches are low, less than about 45 minutes, and moisture and extrusion conditions can be altered to further lower sugar conversion time.
摘要翻译：公开了含淀粉颗粒的高水分挤出的方法和装置，其产生适合于短时间酶转化成糖的熟化的糊化产物，特别是那些经发酵至醇的那些; 通过使用挤出设备提供的高生产率以及所得产品的短的转化时间对于酒精饮料和用作燃料的经济酒精制造是特别有利的。优选地，将全部或裂纹的含淀粉颗粒预先在过量的水中预浸到相当的水分含量，并将所得浆料进料到专门的挤出机中。在挤出机中，水至少部分地从该方法中分离并携带，并且将谷物高度熟化并凝胶化以用于随后的转化。整体装置优选地包括用于颗粒的预浸槽，输送送料器，挤压炊具和酶转化罐; 该装置有利地用于分批连续操作，以产生连续的糖流。糊化淀粉的转化时间低，少于约45分钟，并且可以改变水分和挤出条件以进一步降低糖转化时间。

8. 发明授权

US6103290A Method of extrusion cooking an edible material 失效
标题翻译：挤压烹饪食用材料的方法
公开(公告)号：US6103290A
公开(公告)日：2000-08-15
申请号：US886709
申请日：1997-07-01
申请人： Lavon G. Wenger
发明人： Lavon G. Wenger
IPC分类号： A23K1/00 , A23K1/18 , A23L1/00 , A23P1/12 , B29C47/60 , B30B11/00 , B30B11/24 , A23P1/00
CPC分类号： B30B11/24 , A23K40/20 , A23K50/00 , A23K50/42 , A23K50/80 , A23P30/20 , B30B11/005 , B30B11/243 , B30B15/34 , B29C47/0009 , B29C47/60
摘要： Improved short length extrusion cooking devices (10) are provided which can achieve product throughput and quality characteristics of conventional long-barrel extruders. The short length extruders (10) of the invention include a relatively short barrel (14) having an inlet (18) and an endmost extrusion die (20). An elongated, helically flighted axially, rotatable screw assembly (22) is positioned within the barrel (14) and is coupled to motive structure (39, 39a) for rotation of the assembly (22) at a speed of at least about 500 rpm. The device (10) may include an internal, apertured flow-restricting device (60, 102) which defines a mid-barrel choke point for the material being processed. An alternate extruder (120) is configured without a mid-barrel restriction and is designed to operate at essentially atmospheric internal pressure throughout the majority of the length of barrel (122) with a significant pressure rise in the final head (134) adjacent the extrusion die. Preferably, the barrel (14, 122) has an internal bore of generally frustoconical configuration with an effective length to maximum diameter ratio (L/D) of at least about 6. Novel extrusion processes and products are also provided, using extremely short extrusion barrel retention times to give cooked extrudates having essentially no amino acid or vitamin nutrient losses, and/or dense, highly cooked, low moisture feeds. Twin screw extruders (232, 232a) with and without mid-barrel restriction elements (252-256) can also be provided, and include an internally tapered barrel (237) with correspondingly tapered, flighted, axially rotatable screws (238, 240).
摘要翻译：提供了改进的短长度挤压烹饪装置（10），其可以实现常规长筒挤出机的产品产量和质量特性。本发明的短长度挤出机（10）包括具有入口（18）和最末端的挤出模具（20）的相对较短的筒体（14）。细长的，螺旋形旋转的轴向可旋转螺丝组件（22）定位在筒体（14）内并且联接到动力结构（39,39a）以用于以至少约500rpm的速度旋转组件（22）。装置（10）可以包括内部有孔流动限制装置（60,102），其限定用于待处理材料的中筒阻塞点。替代的挤出机（120）构造成没有中筒限制，并且被设计成在桶的整个大部分长度（122）内在基本上大气压下运行，而最终的头部（134）中邻近挤压件死。优选地，筒体（14,122）具有大致截头圆锥形构造的内孔，其具有至少约6的有效长度与最大直径比（L / D）。使用极短的挤出筒也提供了新的挤出工艺和产品保留时间以产生基本上不具有氨基酸或维生素营养物质损失的煮熟的挤出物，和/或致密的，高度熟化的低水分进料。也可以提供具有和不具有中筒限制元件（252-256）的双螺杆挤出机（232,232a），并且包括具有相应锥形的，可旋转的，可轴向旋转的螺钉（238,240）的内锥形筒（237）。

9. 发明授权

US5783240A Method of producing high protein, high fat sinking aquatic feed 失效
标题翻译：生产高蛋白，高脂肪下沉的水产饲料的方法
公开(公告)号：US5783240A
公开(公告)日：1998-07-21
申请号：US733118
申请日：1996-10-16
申请人： Lavon G. Wenger , Bobbie W. Hauck , Elmer J. Osterhaus
发明人： Lavon G. Wenger , Bobbie W. Hauck , Elmer J. Osterhaus
IPC分类号： A23K1/00 , A23K1/18 , A23K1/20
CPC分类号： A23K50/80 , A23K40/20 , Y10S426/805
摘要： A method of producing extrudates such as high protein, high fat sinking aquatic feeds is provided wherein a high protein starting material is initially preconditioned and passed through an extruder; in the extruder barrel a zone of reduced pressure is created upstream of the die for densifying the final extrudate. Fat may be added to the starting mixture at any desired point in the process, and/or may be added as a surface coating to the final extrudate. Preferably, the method further involves measuring a density value of the extrudate such as bulk density, and adjusting the magnitude of the reduced pressure conditions in the barrel in response to such measurement.
摘要翻译：提供了一种生产高蛋白，高脂肪沉降水生饲料的挤出物的方法，其中高蛋白原料最初被预处理并通过挤出机; 在挤出机筒体中，在模具的上游产生减压区域，用于致密化最终的挤出物。可以在该方法中的任何所需点将脂肪加入起始混合物中，和/或作为表面涂料加入到最终挤出物中。优选地，该方法还包括测量挤出物的密度值，例如体积密度，以及响应于这种测量来调节桶中的减压条件的大小。

10. 发明授权

US5242292A Extruder apparatus for producing sterile pelleted feed product 失效
标题翻译：用于生产无菌饲料产品的挤出机设备
公开(公告)号：US5242292A
公开(公告)日：1993-09-07
申请号：US917962
申请日：1992-07-24
申请人： Lavon G. Wenger
发明人： Lavon G. Wenger
IPC分类号： A23K1/20 , A23K1/00 , A23N17/00 , A23P1/02 , B30B11/22 , B30B11/24
CPC分类号： B30B11/24 , A23K40/20 , A23N17/005 , A23P10/25 , B30B11/221 , Y10S425/23
摘要： An apparatus (10) and method for the production of sterile, pelleted feed products is provided which includes an extruder device (12) equipped with a pelleting head (14) adjacent the outlet end of the extruder barrel (17). The pelleting head (14) includes an annular die section (52) having die openings (58) therethrough which is secured to the extruder barrel (17), forming an extension thereof; a rotatable, multiple-vane plate (66) is secured to the screw (42) of the device (12) and cooperates with the die section (52) to form final pellets. A rotatable knife (16) serves to cut emerging extrudate so as to size the pellets. In an alternative embodiment, the plate (66) is separately powered for rotation independent of the extruder screw (17), preferably by means of a prime mover (102) coupled with a short extruder screw section (100) which supports the plate (66). Preferably, the extruder device (12) is equipped with an upstream preconditioner (40) serving to moisturize and uniformly mix dry feed ingredients. The preconditioner also at least partially precooks the mixture and subjects the same to time-temperature conditions for sterilization purposes.
摘要翻译：提供了一种用于生产无菌，沉淀的饲料产品的设备（10）和方法，其包括装备有邻近挤出机筒（17）的出口端的造粒头（14）的挤出机装置（12）。造粒头（14）包括具有穿过其中的模具开口（58）的环形模具部分（52），其固定到挤出机筒体（17）上，形成其延伸部分; 可旋转的多叶片板（66）固定到装置（12）的螺钉（42）上并与模具部分（52）配合以形成最终的颗粒。可旋转刀（16）用于切割出现的挤出物以使颗粒尺寸。在替代实施例中，板（66）单独供电以独立于挤出机螺杆（17）进行旋转，优选地通过与支撑板（66）的短挤出机螺杆部分（100）联接的原动机（102））。优选地，挤出机装置（12）装备有上游预处理器（40），用于保湿和均匀混合干饲料成分。预处理器还至少部分预混合混合物并将其接受相同的时间温度条件用于灭菌目的。

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