Abstract:
A vacuum switch tube has a housing which has two insulating housing regions arranged and configured symmetrically in respect of a center plane. Each of the two insulating housings contains a plurality of insulating housing parts. Shielding elements extend into the interior of the vacuum switch tube and are arranged between neighboring insulating housing parts and between insulating housing parts and neighboring additional housing parts. The shielding elements have improved dielectric properties and a simultaneously material-saving structure. Accordingly, the geometrical dimensions of the shielding elements are determined in dependence on a connected voltage and possible critical field strength between neighboring shields.
Abstract:
A separating device for separating a mixture of magnetizable and non-magnetizable particles contained in a suspension that is conducted in a separating channel is provided, the separating device including a laminated, ferromagnetic yoke arranged to one side of the separating channel, e.g., a yoke made of iron, having at least one magnetic field generating means for generating a magnetic deflecting field and a separating element arranged at the outlet of the separating channel for separating the magnetic particles, wherein the magnetic field generating means is a coil assembly including coils equidistantly arranged in grooves of the yoke along the separating channel and which can be actuated via a control device such that a temporally variable deflecting magnetic field, substantially deflecting toward the yoke, e.g., a traveling wave, is generated, having substantially field-free regions passing over the entire length of the separating channel.
Abstract:
A method for magnetic ore separation and/or dressing is provided, in which metalliferous recoverable materials are separated from conveyed metalliferous ore rock. The method may include producing a pulp including metalliferous recoverable material, executing a hydrophobizing reaction of recoverable material in the pulp, synthesizing a hydrophobized, magnetizable material in liquid suspension and adding this suspension to the pulp, causing an agglomeration reaction between hydrophobized magnetizable material and hydrophobized recoverable material to form magnetizable agglomerates in the pulp, separating the magnetizable agglomerates from the pulp, mixing separation products containing the agglomerates with a non-polar liquid insoluble in water and decomposing the agglomerates in the non-polar liquid into magnetizable material and recoverable material, separating the magnetizable material from the recoverable material, and removing moisture from the separation portion containing the recoverable material of the second separation stage to synthesize the recoverable material.
Abstract:
A device for introducing dust into a molten bath of a pyrometallurgical installation is provided. An electrodeless plasma torch includes an essentially tubular housing, wherein the housing allows a passage of a carrier gas containing dust particles, and wherein the housing is coaxially surrounded by an inductive load coil which forms a heating zone.
Abstract:
In a method for separating rich ore particles from agglomerates which contain said rich ore particles and magnetizable particles attached thereto, especially Fe3O4, in which agglomerates of the rich ore particle and the magnetizable particle are bonded by organic molecular chains, the agglomerates are contained in a suspension containing a carrier fluid and are broken up by an input of mechanical energy so that an agent contained in the suspension and decomposing the exposed, hydrophobic molecular chains can act upon the molecular chains. The Fe-containing oxide components are separated from the suspension in a magnetic separation process.
Abstract:
A method in which CO2 is placed on an adsorber and an adsorption reaction with ammonia, that is used as a chemical absorption agent, occurs, is provided. The CO2 extracted from the waste gas is joined to the ammonia on the catalytic surface using a heterogeneous, catalytic reaction. At least two reactors are provided in the associated device. The reactors, which operate alternately, are switched between the adsorption of CO2 and the regeneration of the absorption agent.
Abstract:
A circuit breaker has at least one housing having at least one opening, and at least one pair of contacts located in the housing, the contacts of the pair of contacts being mobile in relation to each other for opening and closing an electric circuit. An open-pore metal foam (20) is interposed between at least one of the pairs of contacts and at least one housing opening (11), the metal foam being electrically insulated from the current-carrying elements of the circuit breaker (1). An open-pore metal foam (20), produced of a zinc base alloy or aluminum base alloy, can be used as a cooling structure for the dissipation of heat from switching gases that are produced by an electric switching process.
Abstract:
A device (1) has a series circuit of submodules with a power semiconductor circuit and an energy accumulator connected in parallel with the power semiconductor circuit. Each submodule is associated with a short circuit device for shorting the submodule. The short circuit device is a vacuum switching tube. The device is cost-effective and at the same time enables safe bridging of a defective submodule.
Abstract:
High-voltage pulses are generated and injected in a parallel-capacitative manner into the first stage of a multistage Marx generator at suitable intervals. The high-voltage pulses result in a longitudinal overvoltage triggering of the first spark gap of the Marx generator. As a result, industrial applications are able to generate, in a fault-free manner, high-voltage pulses having a predetermined repetition rate over a prolonged period of time.
Abstract:
Disclosed is a device for applying liquid onto a running web (B), particularly dyeing liquid onto a textile web with a pole. The inventive device is embodied so as to be selectively operable in an injection mode in which the liquid is delivered to the volume of the web (B) at an increased pressure or in a pouring mode in which the liquid is applied to at least one surface of the web (B).