A mixing device for preparing a ready-to-use compound comprising at least one component, which is to be mixed before use, in a cartridge with a tubular mixing rod and a working method with this mixing device and cartridge. The insertion of the cartridge in the mixing device is simplified so that the device can be operated completely automatically, and dispensing of a cartridge to be mixed or a ready-mixed cartridge is preferably be made possible with automated handling means (robots). Because the cartridge holder has a clamping means with which the cartridge can be clamped on the bottle neck-like section, the clamping of the cartridge in the mixer is simplified and can be triggered by force, for example pneumatically.

A device for the processing of liquids and/or solids includes a disposable layer adapted to shield a working surface from coming into contact with, and being fouled by, the processed liquids and/or solids, and apparatus suitable to apply a negative pressure in a gap between the disposable layer and the working surface, thereby causing the disposable layer to adhere to the working surface.

The invention relates to a stirring element of a stirrer for mixing and/or homogenizing or suspending flowable media, which is substantially spherical in shape. The invention further relates to a stirrer having at least two stirring elements according to the invention.

An electrically controlled mixing and blending apparatus featuring high corrosion resistance and mixing efficiency includes a housing, a first bearing engaged to both sides of the housing, and the interior of both first bearings being coupled to a first rotating shaft, a second bearing engaged to a surface at the middle of the first rotating shaft and the interior of the second bearing being engaged to a surface of an output shaft of a first motor output shaft. Both sides of the first motor are fixedly coupled to a surface of the first rotating shaft through a first fixed rod. A gear drives the first motor, a blending rod and a stirring rack to swing in the front-rear direction through the first rotating shaft to increase the turbulence of the liquid raw materials, reduce the time required for mixing raw materials, and improve the production efficiency.

Disclosed is an impeller for mixing a fluid wherein the impeller is fashioned so as to substantially reduce areas of fluid acceleration and deceleration around a hub region of the impeller during fluid mixing. Additionally, a bioreactor system having microcarriers, kit of parts and cell culturing method are also provided. The impeller has a generally circularly shaped hub having a downwardly directed progressively tapered volume which has plurality of periods formed therein corresponding to the number of increasingly arced blades. Each of the increasingly arced blades flare outwards to a distal end region of the impeller and have an increasing radius to said arc towards a peripheral edge region of said hub. The flare to the increasingly arced blades defines a larger circumference than that of said hub, thereby imparting a generally frusto-conical shape to the impeller. A method mixing a fluid using the impeller disclosed herein is also disclosed.

An automated computer-controlled sampling system and related methods for collecting, processing, and analyzing agricultural samples for various chemical properties such as plant available nutrients. The sampling system allows multiple samples to be processed and analyzed for different analytes or chemical properties in a simultaneous concurrent or semi-concurrent manner. Advantageously, the system can process soil samples in the “as collected” condition without drying or grinding. The system generally includes a sample preparation sub-system which receives soil samples collected by a probe collection sub-system and produces a slurry (i.e. mixture of soil, vegetation, and/or manure and water), and a chemical analysis sub-system which processes the prepared slurry samples for quantifying multiple analytes and/or chemical properties of the sample. The sample preparation and chemical analysis subsystems can be used to analyze soil, vegetation, and/or manure samples.

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 blender system includes a container having a rotatable blade assembly therein, a lid covering an open end of the container, and a base with a motorized unit. When the container is coupled with the base, the motorized unit is adapted to drive rotation of the rotatable blade assembly. The lid includes a hinged actuator lever adapted to actuate the motorized unit. A detent extends from the hinged actuator lever and passes through a series of apertures and presses against a slidable actuator shaft disposed in the container and maintained in its position by a spring force, thereby depressing a switch for the motorized unit. A rotatable blade system includes cutting blade(s) and crushing blade(s). The crushing blade extends longitudinally outwardly from a hub. When the hub rotates in a first direction or second direction opposite the first direction, a face of the crushing blade is leading or trailing, respectively.

A method for mixing a fluid includes: dispensing a first volume of a fluid into a flexible container, the flexible container being at least partially disposed within the chamber of a support housing; repeatedly moving the support housing and the flexible container contained therein so as to mix the first volume of fluid within the flexible container; adding further fluid into the flexible container after moving the support housing to form a second volume of fluid; and manipulating a mixing element within the flexible container so as to mix the second volume of fluid.

A module includes a housing, a sealing feature, a locking feature, and an agitator. The housing has an opening separating inner and outer surfaces and a boss that extends through the housing such that part of the outer surface forms an inner bore of the boss having a terminus pointing toward the opening. The agitator has a base, a shaft, and a mixing element coupled to the base such that the base, in cooperation with the sealing feature, circumferentially seals the opening of the housing to form a cavity defined by the inner surface. The shaft passes through the inner bore. The locking feature when engaged permits independent or simultaneous translational and rotational movement of the shaft while an area between the terminus of the boss and the shaft remains mechanically sealed during the movement against liquid or powder encroachment into a clean area of the inner bore.