DE3312531C2 - Electromagnetic separator - Google Patents

Abstract

An electromagnetic separator according to the invention contains chambers 1 which are filled with ferromagnetic filling bodies 2, and electromagnets 3 which consist of a core 5 with windings. These cores, together with the ferromagnetic fillers, form a closed magnetic circuit. The end sections of the core or the entire core are made of magnetically hard material.

Description

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are. The electromagnets 10 contain cores 11, at which at least the end sections 12 are made of magnetically hard material.

The electromagnetic separator works as follows:

A voltage is briefly applied to the windings 4, creating a magnetic field for magnetizing the Cores 5,11 or the end sections 6,12 is generated. Then the voltage is switched off and the windings are completely de-energized. This remains because of the Remanence of the cores (or their end sections) receive a magnetization of the filling bodies 2 in the chambers. A liquid is then introduced into the separator via the inlet connection 7, which liquid when passing through the packing 2 cleaned of the ferromagnetic particles and out of the separator via the nozzle 7 is led out. After completion of the cleaning process the entry of the liquid into the separator is interrupted while working on the windings again voltage (for example, in the form of a single pulse), but with opposite polarity is applied, whereby with the help of the winding eyes 4 a V

Reverse magnetic field is generated, which is the coercive force of the cores 5,11 or their end sections 6,12 is the same, what a full demagnetization and cancellation of the magnetization field are caused thereby Conditions for the effective flushing of the packing from the admixture particles retained by it The cores 5, 11 or their end sections 6, 12 are then secured for the subsequent Commissioning of the separator magnetized

For this purpose 2 sheets of drawings

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Claims (4)

1 2 are led. Claims: One advantage of this training is that it thanks to the ability of the magnetically hard material, ! .Electromagnetic separator, which with ferro- maintain a high remanence, the possibility Magnetic filler bodies (2) filled chambers (1) 5 offers to power the coils in the working state to be de-energized. and electromagnets (3), which consist of cores (6) with chen and thereby the magnetic field in the zone of the packing Windings consist, whereby the electroma per keep constant. The role of the windings is running Together with the ferromagnetic filling, this only applies to the short-term magnetization bodies form a closed magnetic circuit, (and demagnetization for the regeneration of d a characterized in that at least io per) of the end sections egg cores and the whole core the end sections (6) of the core (5) from magnetic ne addition, if they are made of magnetically hard material hard materia! are executed. are executed. There will consequently be a considerable in- 2. Separator according to claim 1, characterized in that savings in electrical energy are achieved distinguishes that the cores are completely magnetic, the reliability of the separator is increased consist of hard material. is there a "discharge" of the deposited particles from the 3. Separator according to claim 1, characterized by a separator in the event of an accidental shutdown shows that the end sections of the cores avoiding feeding the windings. tert are. ! In those cases in which the chambers are larger 4. Separator according to claim 3, characterized in that it is used to magnetize the that the widened sections in the form 20 sen located filler advantageously the magnetic from Platter »are designed to carry out the hard end sections with the cores widened, z. Am Are releasably connected and partly the chambers in the form of plates, which are releasably connected to the cores include. and partially include the chambers. The invention is hereinafter referred to 25 explained on the drawings It shows F i g. 1 shows the general view of an electromagnetic separator according to the invention, the six chambers The invention relates to electromagnetic with packing and two rows of electromagnets Contains facilities for separating ferromagnetic partial with six electromagnets in each row liquid substances, in particular electromag- 30 with the electromagnets and the chambers alternating gnetic separators and can be used in chemical, war- ning on intended? ^1st Are arranged in a circle; sea-energetic .., mining, metallurgical F i g. 2 shows the plan view of a section of the FIG. 1 Industry, in mechanical engineering and other industry-related separators; genes preferably for the fine cleaning of liquids. F i g. 3 as well as FIG. 2 the plan view of the section th and gases from corrosive components and compounds of the separator shown in Fig. 2, but with cores, Wear products from machine parts as well as from the widened magnetically hard end sections, z. B. spcrgiertcm tinder ti. a. to be used. magnetically hard support plate !! to have; Various electromagnetic inputs are known. 4 another embodiment of the electrical device for separating ferromagnetic partial magnetic separators, the two chambers with fillings of liquid media. These devices are 40 bodies and two rows of electromagnets, each with the designation "electromagnetic FiI" - two electromagnets in each row contains:
ter "or" electromagnetic separator "known So F i g. 5 is a plan view of a section of the FIG. 4 is e.g. B. in the SU authorship certificate 7 84 894 such a: - shown separator. ge device described, which consists of chambers. In the drawings, similar parts are denoted by identical parts that are filled with ferromagnetic filler bodies, 45 chen reference numerals
the magnetized and demagnetized separator contains six cylindrical chambers 1, in which the electromagnets together with the chen ferromagnetic filter filler 2, z. B. balls, ferromagnetic fillers are housed a closed crushed chips. Form the elektroma magnetic circuit. 50 magnetic separator contains two magnetic circuits that A disadvantage of this device is that it is provided with an electromagnet 3. Every electrical Working condition the electromagnet is constantly connected to the gnct 3 has windings 4 and a core 5, the end of which Voltage source for generating a magnetizing section 6 (pole pieces) made of magnetically hard material area are connected. This requires a hol (special alloys), i. H. made of a material that hen power consumption. 55 is able to maintain a high level of remanence, except for The invention is based on the object that leads are cores. The chambers are in the lower part with a the electromagnet of the electromagnetic separa- common inlet connection 7 and in the upper part - tors to run in such a way that the magnetization conditions with an outlet port 8 for the purified liquid with a simultaneous reduction in energy consumption. If necessary, the magnetic zone ches are preserved. 60 tables or the magnetization This object is achieved in that to increase the filler body at an approximate level, one uses electromagnetic separator, the magnetically hard end sections widened with ferromagnetic, z. Am see filling bodies filled chambers and electroma- form of plates 9 (F i g. 3), which are detachable on the cores gnets, which consist of cores with windings, are attached in any way, where the electromagnets together with the ferroma 65 The in F i g. 4.5 reproduced separator contains magnetic fillers a closed magnet two cylindrical chambers 1 with in these under- Form a circle, according to the invention at least the end-attached ferromagnetic filler bodies 2 and two Sections of the core made of magnetically hard material from magnetic circuits, which are provided with electromagnets 10