The present invention relates to a biological material extraction apparatus. According to the present invention, a tube in which a solution for use in extracting a biological material is contained is rotated to directly mix the solution, and cells where stirring is being conducted in each step are sealed to fundamentally block stirring-induced pollution between cells, thereby improving an extraction efficiency.

The present invention relates to a biological material extraction apparatus. According to the present invention, a tube in which a solution for use in extracting a biological material is contained is rotated to directly mix the solution, and cells where stirring is being conducted in each step are sealed to fundamentally block stirring-induced pollution between cells, thereby improving an extraction efficiency.

The present invention concerns an apparatus for treating and cooling foundry molding sand, comprising a mixing container and a mixing tool rotatable about a drive shaft, wherein there is provided an air feed for the feed of air into the container interior. To provide an improved apparatus with which a more uniform fluidized layer is produced as far as possible over the entire cross-section of the mixing container, wherein moreover the proportion of the solid particles entrained with the gas flow is to be reduced, it is proposed according to the invention that the mixing tool has at least two mixing vanes spaced from each other in the vertical direction and at least one mixing vane has a mixer blade with a surface which is inclined relative to the horizontal.

High thermal transfer, hollow core extrusion screws (50, 52, 124, 126, 190) include elongated hollow core shafts (54, 128, 130, 192) equipped with helical fighting (56, 132, 134, 194) along the lengths thereof. The fighting (132, 134, 194) may also be of hollow construction which communicates with the hollow core shafts (54, 128, 130, 192). Structure (88, 90) is provided for delivery of heat exchange media (e.g., steam) into the hollow core shafts (54, 128, 130, 192) and the hollow fighting (132, 134, 194). The fighting (56, 132, 134, 194) also includes a forward, reverse pitch section (64, 162, 216). The extrusion screws (50, 52, 124, 126, 190) are designed to be used as complemental pairs as a part of twin screw processing devices (20), and are designed to impart high levels of thermal energy into materials being processed in the devices (20), without adding additional moisture.

High thermal transfer, hollow core extrusion screws (50, 52, 124, 126, 190) include elongated hollow core shafts (54, 128, 130, 192) equipped with helical fighting (56, 132, 134, 194) along the lengths thereof. The fighting (132, 134, 194) may also be of hollow construction which communicates with the hollow core shafts (54, 128, 130, 192). Structure (88, 90) is provided for delivery of heat exchange media (e.g., steam) into the hollow core shafts (54, 128, 130, 192) and the hollow fighting (132, 134, 194). The fighting (56, 132, 134, 194) also includes a forward, reverse pitch section (64, 162, 216). The extrusion screws (50, 52, 124, 126, 190) are designed to be used as complemental pairs as a part of twin screw processing devices (20), and are designed to impart high levels of thermal energy into materials being processed in the devices (20), without adding additional moisture.

Apparatus and methods for food production including a food preconditioner (228) operable to heat and partially pre-cook food ingredients, and a twin screw extruder (20) operable to further cook the preconditioned ingredients to create final food products. The extruder (20) includes a pair of hollow core extrusion screws (50, 52, 124, 126, 190) having elongated hollow core shafts (54, 128, 130, 192) equipped with helical fighting (56, 132, 134, 194) along the lengths thereof. The fighting (132, 134, 194) is also of hollow construction which communicates with the hollow core shafts (54, 128, 130, 192). The flighting (56, 132, 134, 194) also includes forward, reverse pitch sections (64, 162, 216). The extrusion screws (50, 52, 124, 126, 190) are designed to impart high levels of thermal energy into materials being processed in the extruders (20), without adding additional moisture.

A crystallization device (4) includes a stirring blade (W) including a plurality of radially penetrating holes (h) and rotating about a rotating shaft (3), a reaction tank (1) having a bottomed cylindrical shape and concentrically accommodating the stirring blade (W) inside, a first liquid supply portion (5a) provided on the reaction tank (1) and supplying a first reaction liquid (L1) to the inside of the reaction tank (1), and a second liquid supply portion (5b) provided on the stirring blade (W) and supplying a second reaction liquid (L2).

Provided is a liquid stirring apparatus capable of stirring liquid in a wide range. A liquid stirring apparatus 100 includes a first rotating blade 110 and a second rotating blade 130 connected to a liquid discharge device 101 including a submersible pump. The first rotating blade 110 and the second rotating blade 130 include arm tubes 114 and 134 respectively extending radially outward of a first base tube 111 and a second base tube 131, and include arm tubes 115 and 135 respectively extending radially outward from intermediate tubes 113 and 133. The arm tubes 114 and 134 and the arm tubes 115 and 135 are connected to each other by connecting bodies 116 and 136 so that liquid WK can flow therethrough. The connecting bodies 116 and 136 are attached with flat plate-shaped stirring plates 117 and 137 that extend radially outward of the connecting bodies 116 and 136.

Provided is a device for accelerating reaction of substances to be stirred, the device including: a hollow shaft having at least one or more shaft holes formed thereon; a fixing shaft disposed inside the hollow shaft in such a way as to protrude downward; a lower disc fitted to the fixing shaft; a gas-inducing impeller located on top of the lower disc and having a plurality of blades each consisting of a pair of a long blade and a short blade, the long blades protruding outward from the space between the lower disc and an upper disc; the upper disc fitted to the fixing shaft in such a way as to be spaced apart from the lower disc on the lower periphery of the hollow shaft and having an inlet hole formed at the center thereof; and a general impeller fitted to the lower end of the fixing shaft.

Provided is a device for accelerating reaction of substances to be stirred, the device including: a hollow shaft having at least one or more shaft holes formed thereon; a fixing shaft disposed inside the hollow shaft in such a way as to protrude downward; a lower disc fitted to the fixing shaft; a gas-inducing impeller located on top of the lower disc and having a plurality of blades each consisting of a pair of a long blade and a short blade, the long blades protruding outward from the space between the lower disc and an upper disc; the upper disc fitted to the fixing shaft in such a way as to be spaced apart from the lower disc on the lower periphery of the hollow shaft and having an inlet hole formed at the center thereof; and a general impeller fitted to the lower end of the fixing shaft.