Abstract:
A method for operating an apparatus with at least one rotating shaft, the at least one rotating shaft comprising functional elements which act on material to be processed in the apparatus, the apparatus comprising a filling orifice and an outlet orifice with an adjustable lower edge, and material being conveyed continuously through the apparatus from the filling orifice to the outlet orifice, said method comprising the following steps: a) measuring load data for the at least one rotating shaft in order to determine shaft load, b) lowering the lower edge of the outlet orifice and/or reducing the quantity of material supplied if the shaft load exceeds a specified maximum load, or displacing the lower edge of the outlet orifice upwards and/or increasing the quantity of material supplied if the shaft load is less than a specified shaft load.
Abstract:
An apparatus for mixing a viscous flowable medium includes a receptacle for receiving the viscous flowable medium and has a substantially vertically arranged rotatable stirring axle and a stirring assembly that comprises at least one stirring element. In one embodiment, the stirring element is arranged at a lower end of the stirring axle substantially perpendicular thereto for rotation of the stirring element around the stirring axle. The stirring elements are shovel-like and are open towards an end of the stirring axle remote from the lower end and inclined with a slant angle in rotation direction towards a bottom of the receptacle, such that said viscous liquid upon rotation of the stirring axle is at least partly directed upwards in the receptacle by the at least one shovel-like stirring element.
Abstract:
A mixing system comprising a bowl, mixing element and motor. A mixing element is located within the bowl and is driven by a motor to impart mechanical energy to the foodstuff being mixed upon contact. A method for predicting instantaneous loading on the mixing system motor. A method for increasing the power to the motor comprises introducing additional current in advance of instantaneous loading. A method for identifying the foodstuff being mixed to control operation of the mixer either by allowing user interaction or increasing the current to the motor in advance of instantaneous loading and demands on the motor.
Abstract:
An apparatus for foam emulsion processing, and/or determination of the rheological parameters of a given sample includes a syringe assembly, a movable assembly, and a platform assembly. The syringe assembly has a first and second syringe connected by a capillary tube (emulsion needle). The movable assembly includes a holder tube within which the syringe assembly is secured. The platform assembly restrains movement of the movable assembly to only one axis.
Abstract:
Device and methods for rotationally mixing and rheological testing of sample liquids, such as cement particle suspensions, employ mixing blades and shear-resistant members having substantially noncoincident orbital paths. Rheology is assessed by measuring the resistance of the liquid to rotation of the device. Both rheological and calorimetric testing can be performed during mixing, which ensures uniformity of rheology and hence the accuracy of results.
Abstract:
Devices and methods for controlling and monitoring the progress and properties of multiple reactions are disclosed. The method and apparatus are especially useful for synthesizing, screening, and characterizing combinatorial libraries, but also offer significant advantages over conventional experimental reactors as well. The apparatus generally includes multiple vessels for containing reaction mixtures, and systems for controlling the stirring rate and temperature of individual reaction mixtures or groups of reaction mixtures. In addition, the apparatus may include provisions for independently controlling pressure in each vessel, and a system for injecting liquids into the vessels at a pressure different than ambient pressure. In situ monitoring of individual reaction mixtures provides feedback for process controllers, and also provides data for determining reaction rates, product yields, and various properties of the reaction products, including viscosity and molecular weight. Computer-based methods are disclosed for process monitoring and control, and for data display and analysis.
Abstract:
Devices and methods for controlling and monitoring the progress and properties of multiple reactions are disclosed. The method and apparatus are especially useful for synthesizing, screening, and characterizing combinatorial libraries, but also offer significant advantages over conventional experimental reactors as well. The apparatus generally includes multiple vessels for containing reaction mixtures, and systems for controlling the stirring rate and temperature of individual reaction mixtures or groups of reaction mixtures. In addition, the apparatus may include provisions for independently controlling pressure in each vessel, and a system for injecting liquids into the vessels at a pressure different than ambient pressure. In situ monitoring of individual reaction mixtures provides feedback for process controllers, and also provides data for determining reaction rates, product yields, and various properties of the reaction products, including viscosity and molecular weight. Computer-based methods are disclosed for process monitoring and control, and for data display and analysis.
Abstract:
The invention relates to an apparatus for furnishing a reaction mixture for a reforming catalyst of a fuel cell assembly, having a) an air infeed with means for regulating an air flow rate; b) a fuel infeed with means for regulating a fuel flow rate; c) a water vapor generator with means for regulating a water vapor flow rate; d) a liquid water infeed with means for regulating a liquid water flow rate; and e) a control unit, which communicates with the liquid water infeed, the water vapor generator, the fuel infeed, and the air infeed; and via the control unit, controlling variables for the fuel infeed, the liquid water infeed, the water vapor generator and the air infeed which are furnished as a function of a power demand to the fuel cell and as a function of an operating phase of the apparatus.
Abstract translation:本发明涉及一种用于提供用于燃料电池组件的重整催化剂的反应混合物的装置,其具有:具有用于调节空气流量的装置的空气进料; b)具有用于调节燃料流量的装置的燃料进料; c )具有用于调节水蒸汽流速的装置的水蒸汽发生器; d)具有用于调节液体水流速的装置的液体水进料; 与液体供水,水蒸汽发生器,燃料供给和空气进料连通的控制单元; 并且通过控制单元,控制作为燃料电池的功率需求而被提供的燃料供给,液体供水,水蒸汽发生器和空气进给的变量以及作为装置的运行阶段的函数 。
Abstract:
A method and device for monitoring and optionally controlling the absolute inventory of a dynamic fluid in a vessel having at least one agitator with a rotatable shaft extending in an essentially horizontal direction, wherein there is a resultant force acting on the agitator in an essentially vertical direction in relation to the shaft and a relationship exists between the absolute inventory and the force acting on the agitator in the essentially vertical direction. The method comprises determining a correlation between the vessel absolute inventory and resultant force, measuring the resultant force, and thereby determining a relative absolute inventory within the vessel. The determined absolute inventory value may then be used as a control variable for use in controlling the absolute inventory within the vessel.
Abstract:
In a method for controlling the mixing of dough ingredients in a mixer, dough ingredients are mixed. The amount of power supplied to the mixer is measured in specified time intervals. Data relating to the amount of power supplied are stored. Based on the stored data, a decline in the amount of power supplied to the mixer is identified and the mixer mixes the dough ingredients for a predetermined period of time after the decline is identified. A mixer of the present invention includes a mixing device, a motor coupled to the mixing device, a power source coupled to the motor, and a mixing-time controller.