The present set of embodiments relate to a bioproduction system, method, and apparatus for mixing a fluid. The bioproduction mixing system includes an offset helical assembly having a stabilizer and impeller for mixing a fluid within a flexible compartment The bioproduction mixing system is designed for efficient mixing of the fluid and for use with a variety of different impellers that can be located at different locations according to the volume and shape characteristics of the flexible compartment. The bioproduction mixing system is optimized to eliminate stagnation zones while maximizing bulk fluid flow.

The present set of embodiments relate a system, method, and various devices for installation of a bioproduction system. The bioproduction system includes a rigid housing having a moveable platform to assist in the installation of a bioprocessing container within. The system also includes mounting systems for a variety of peripherals originating from the flexible container while safeguarding operators. More specifically, the system includes systems and methods for mounting bearings, organizing tube sets, and placement of the flexible container in its proper orientation.

The present invention relates to a vertical low-pressure reactor with stirred tank for leaching polymetal minerals and concentrates of lead, copper, zinc, iron and/or the mixtures thereof, in a solid-gas-liquid three-phase suspension system. The low-pressure vertical reactor with stirred tank consists of: a cylindrical vertical container with three or four deflectors equidistantly distributed across the 360°; a stirring system made up of two impellers coupled to a rotary shaft, that provides adequate reaction and interaction of the metal species of interest; a space of the volume of the reactor, corresponding to 20% to 35% of the total volume of the container, located at the top of the reactor and which acts as a gas chamber that provides a continuous feed of oxygen; and a system of coils placed on the outside or inside surface of the reactor to ensure efficient heat-transfer reactions and controlled kinetics.

A fluid mixing system includes a flexible bag having a first end, an opposing second end, and an interior surface bounding a compartment; a retainer coupled to the second end of the flexible bag, the retainer having a retention cavity formed thereon that communicates with the compartment of the flexible bag; and an elongated member having a first end rotatably coupled to the first end of the flexible bag and an opposing second end freely disposed within the retention cavity of the retainer so that the second end of the elongated member can rotate within the retention cavity relative to the retainer.

A fluid mixing system includes a flexible bag having a first end, an opposing second end, and an interior surface bounding a compartment. A first rotational assembly includes a first casing mounted to the first end of the flexible bag and a first hub rotatably mounted to the first casing. A second rotational assembly includes a second casing mounted to the second end of the flexible bag and a second hub rotatably mounted to the second casing. An elongated member has a first end coupled with the first hub and an opposing second end coupled with the second hub, the connector being flexible and having a uniform flexibility along its entire length. A first impeller is mounted to the connector.

A sanitary mixing tank steady bearing is replaceable without lifting a mixing tank shaft. The steady bearing is insertable into and removable from the bottom of a bearing support attached inside the base of the sanitary mixing tank. The steady bearing may thus be replaced by a service technician working through a man way/man hole on the top of the tank allowing service without lifting the mixing tank shaft. Gaps are provided between the bearing support and steady bearing allowing flushing material from around the steady bearing to easily maintain a sanitary environment.

A vertical low-pressure reactor with stirred tank for leaching polymetal minerals and concentrates of lead, copper, zinc, iron and/or the mixtures thereof, in a solid-gas-liquid three-phase suspension system. The low-pressure vertical reactor with stirred tank consists of: a cylindrical vertical container with three or four deflectors evenly distributed across the 360; a stirring system made up of two impellers coupled to a rotary shaft, that provides adequate reaction and interaction of the metal species of interest; a space of the volume of the reactor, corresponding to 20% to 35% of the total volume of the container, located at the top of the reactor and which acts as a gas chamber that provides a continuous feed of oxygen; and a system of coils placed on the outside or inside surface of the reactor to ensure efficient heat-transfer reactions and controlled kinetics.

A method for mixing a biological suspension includes disposing a biological suspension within a compartment of a container, the biological suspension comprising cells or microorganisms suspended within a nutrient growth medium; and rotating a first drive line and laterally spaced apart second drive line within the compartment of the container so as to cause the drive lines to twist into a helical configuration and mix the biological suspension.

A fluid mixing system includes a container bounding a compartment and extending between a first end and an opposing second end. An elongated first drive line and second drive line are disposed within the compartment of the container and are rotatable therein. At least one tie extends between the first drive line and the second drive line so as to maintain at least a portion of the first drive line and the second drive line at lateral spaced apart positions within the compartment. An impeller or other mixing element can be coupled to the drive lines.

A culture medium preparator includes a cylindrical vessel that terminates at the low part in a substantially hemispherical cap, a lid and a stirrer placed in the vessel. The stirrer includes a vertical tube placed in the center of the vessel, a plurality of blades put into rotation about the tube and magnetic masses at the periphery so that they are placed in proximity to the internal wall of the vessel. The preparator furthermore includes a magnetic ring in rotation about the internal wall at the same height as the magnetic masses. The magnets attract the magnetic masses, the magnetic ring being moved in rotation by a motor. In this way, the stirrer is driven in rotation without requiring mechanical elements placed inside the vessel, the absence of such elements facilitating the cleaning.