摘要:
A process for purifying removal of a chemical target compound from a suspension of crystals thereof in mother liquor in a wash column with forced transport of the crystal bed from the top downward, in which crystals are removed from the lower end of the crystal bed with a rotating removal device and melted, and a portion of the crystal melt is conducted back toward the crystal bed as wash melt, the removal device being secured with a drive shaft conducted into the wash column from the bottom through an inlet having a seal, said drive shaft being driven about its longitudinal axis by a drive unit for rotation and being mounted so as to be rotatable about its longitudinal axis in more than one bearing, such that the mounting in one of the bearings absorbs the downward force acting on the drive shaft, the mounting in two or more bearings absorbs forces acting radially outward from the drive shaft, and the mounting in one bearing is additionally capable of absorbing an upward force acting on the drive shaft.
摘要:
In order to produce a packaging for a sink which has particularly good absorption properties and a low rate of transportation damage there is proposed a packaging for a sink which comprises at least one supporting body that is formed at least partly from a foamed plastic material and comprises at least one seating element incorporating a seating channel for an edge section of the sink, and an outer packaging whose interior accommodates the sink and the at least one supporting body, wherein the at least one supporting body extends over substantially the entire internal height of the interior of the outer packaging.
摘要:
Process for the production on metal or plastic surfaces of thin, hydrolysis-resistant, scratch-resistant and stain-resistant coatings, wherein the coating material can be applied directly to the cleaned metal surface and subsequently cross-linked by high-energy radiation, in particular UV radiation. The substrates can be coated in the form of strip and only subsequently brought into the required external shape. Coated substrates such as these are no longer susceptible to staining by food, cleaning agents or fingerprints and can also be rendered antibacterial. Objects coated in this manner are thus suitable for use in architecture, for interior fittings of buildings, in furniture-making as well as for ornamental applications, and in particular in households, in sanitary applications, in hospitals and in the food-processing and pharmaceutical industries.
摘要:
The invention relates to a cutting device having a cutting unit for dividing a strip from a material web running in a transport direction relative to the cutting device, and having a base support that defines a cutting section for supporting the material web during the division of the strip, and a supporting section, the supporting section being formed and arranged in such a way that it supports the material web and the strip as they are transported away out of the cutting section in the transport direction, wherein the supporting section has a cutout which extends and is formed in such a way that the cut edge of the material web and/or the cut edge of the strip are not supported on the supporting section, at least in some sections, as they are transported away out of the cutting section.
摘要:
In order to provide a sink, comprising at least one basin, which is provided with a basin flange at its upper edge, a cover, which is fixed to the basin and at least partially covers the basin flange, and at least one holding element on the sink side, which cooperates with a holding element on the worktop side when the sink is fitted, in order to hold the sink on a worktop, in the production of which no after-treatment of visible faces of the sink is necessary and in which the cover can be freely designed and, in particular, can be configured without a dent, it is proposed that the holding element on the sink side is connected to the basin flange.
摘要:
A d.c. signal controlled oscillator includes a frequency-determining network having a control input and a modulation input. A phase regulating loop includes the oscillator and components that provide a control signal to the control input. A circuit apparatus for driving the oscillator includes a modulation generator that provides a modulation signal to the modulation input, and a circuit arrangement that autonomously generates a signal depending on and representing a slope of the modulation and provides this slope signal to the modulation generator, which generates the modulation signal dependent on the slope signal. A method of operating the oscillator involves switching a frequency divider successively to two different frequencies, respectively sampling and holding the two different arising control voltages, forming a difference between the two control voltages, and activating the modulation generator so that a modulation swing of the modulation signal is determined by this difference between the control voltages.
摘要:
The present invention relates to a process for preparing an extract from ivy leaves which includes the active ingredient hederacoside C and α-hederin, and to extracts prepared by this process. According to this there is initially provision of a first, α-hederin-rich extract and subsequently provision of a second, hederacoside C-rich extract. In a last step, the two extracts are blended to give an extract which has an adjusted hederacoside C content and an adjusted α-hederin content.
摘要:
The invention relates to a device which enables the actuators and consumers provided on a roll stand for rolling metallic and non-metallic strips to be supplied with operating media. The inventive device comprises a self-supporting construction module consisting of elements of variable which can be connected to each other, the height, width and depth of said elements being variable.
摘要:
The invention relates to a hot-top mold for a strand casting apparatus, consisting of a hot-top, which lies on the upper side of a parting agent distributor and presses it with its underside against the surface of a mold, an overhang being formed on the radially inner surface of the hot-top, which protrudes beyond the parting agent distributor in the direction of take off of the strand, the hot-top being centered and held by an outer ring, which is releasably fastened to the mold. The mold surrounds a function ring toward the bearing surface of the mold which, together with the parting agent distributor, forms function surfaces with adjustable roughness on the surfaces. In the parting agent distributor, radial channels are formed at the upper side and the underside, the channel cross sections at the upper side and the underside being in a ratio of 1:3 to 1:5 to one another.
摘要:
A control device for a filling-ratio adjusting pump with at least one displacement space works on the suction-throttle principle with a positive variation in volume of the displacement space or displacement spaces and is intended inter alia particularly for common-rail diesel injection systems. It allows an exact, precise and highly dynamic control of the filling-ratio adjusting pump at low outlay, without the system being impaired by undesirable cavitation. Located on the suction side of the pump is at least one throttling 2/2-way valve (21, 21a, 21b; 134; 51, 52, 53, 54; 81; 103) actuated by pressure difference. Either such a 2/2-way valve can be used for a group of displacement spaces or for the entire pump or a respective valve of this type can be inserted in front of each individual displacement space. The pressure-difference control of the or each 2/2-way valve takes place via an adjusting device (27; 150) which is arranged on the inflow side of the 2/2-way valve and which is designed either as a throttling valve or as a flow-regulating valve.