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document
Polinder, H. (author), Rem, P.C. (author)
A planar magnet for magnetic density separation, comprising an array of pole pieces succeeding in longitudinal direction of a mounting plane, each pole piece having a body extending transversely along the mounting plane with a substantially constant cross section that includes a top segment that is curved to distribute the magnetic field...
patent 2014
document
Bakker, M.C.M. (author), Rem, P.C. (author), Berkhout, S.P.M. (author)
The invention relates to a method of and a device for separating scrap comprising scrap items of a first type and of a second type, at least one of said types of scrap comprising metal. According to the invention, the method comprises the steps of passing a spot of light over the surface of a scrap item, and performing a plurality of successive...
patent 2013
document
Rem, P.C. (author), Bakker, M.C.M. (author), Berkhout, S.P.M. (author), Rahman, M.A. (author)
Eddy current separation apparatus (1) for separating particles (20) from a particle stream (w), wherein the apparatus (1) comprises a separator drum (4) adapted to create a first particle fraction (21) and a second particle fraction (23), a feeding device (2) upstream of the separator drum (4) for supplying particles (20) to said separator drum ...
patent 2012
document
Rem, P.C. (author), Berkhout, S.P.M. (author)
A method and apparatus for separating solid particles of different densities, using a magnetic process fluid. The solid particles are thoroughly mixed in a small partial flow of the process fluid. The small turbulent partial flow is added to a large laminar partial flow of the process fluid, after which the obtained mixture of the respective...
patent 2011
document
Rem, P.C. (author), Berkhout, S.P.M. (author)
Using of an apparatus for separating magnetic pieces of scrap-material of a first group from magnetic pieces of scrap- material of a second group, wherein a mixture of pieces of scrap-material from the first group and from the second group is collectively transported with a conveyor to a separating zone, in which separating zone the pieces or...
patent 2010
document
Rem, P.C. (author), Berkhout, S.P.M. (author)
Method for separating a non-ferrous metal-comprising fraction from ferrous scrap, wherein the ferrous scrap is conveyed to a processing device for separating the non-ferrous metal-comprising fraction from the remainder of the ferrous scrap. The processing device supplies a beam of water, and the ferrous scrap is conveyed and released into the...
patent 2010
document
Berkhout, S.P.M. (author), Rem, P.C. (author)
The invention relates to a separation-apparatus (1) for separating from a particle-stream (4) at least a first fraction with particles (3) of a first group of dimensions, and a second fraction with particles (3) of a second group of dimensions, comprising an infeed-device (2) for the particle-stream (4), a rotatable drum (5) having at its...
patent 2009
document
Rem, P.C. (author), Berkhout, S.P.M. (author), De Koning, J.R.A. (author)
A method for separating seeds of different densities in a process stream, wherein the seeds are introduced into a magnetic process fluid for the formation of the process stream, which process stream is subjected to a magnetic field for the realization of a density stratification in the process stream, such that the individual seeds in the...
patent 2009
document
Rem, P.C. (author), Berkhout, S.P.M. (author), Fraunholcz, O.N. (author)
The invention relates to a process and device for the separation of fragments of liberated ferrous scrap from not liberated ferrous scrap fragments by means of a static magnet, wherein a mixture of said liberated ferrous and not liberated ferrous fragments is fed onto a continuous conveyor belt which is driven around drums and wherein said...
patent 2008
document
Rem, P.C. (author), Berkhout, S.P.M. (author)
The invention relates to an apparatus and a method for separating a material stream consisting of several materials. The materials to be separated have different densities or density ranges, so that the material of the highest density can be discharged through a screen of the apparatus, while the material of the lowest density can be discharged...
patent 2007
document
Rem, P.C. (author), Van Craaikamp, H. (author), Berkhout, S.P.M. (author), Sierhuis, W. (author), Van Kooy, L.A. (author)
A method for treating bottom ash from a waste incineration plant. The invention relates in particular to a method for treating bottom ash from a domestic waste incineration plant. In accordance with the invention bottom ash having a size ranging up to 2 mm is treated by removing a previously determined component. The treatment comprises at least...
patent 2007
document
Van der Weijden, R.D. (author), Rem, P.C. (author)
The invention relates to a method for the recovery of non-ferrous metal-comprising particles from a particle stream. According to the invention, the particle stream is put onto a conveyor belt in the form of a monolayer such that with the aid of a liquid, at least the non-ferrous metal comprising particles will adhere to the conveyor belt, and...
patent 2004
document
Rem, P.C. (author), Van Kooy, L.A. (author)
The invention relates to a method of in a liquid separating a mixture of particles that within chosen limits have different physical property values, wherein the particles to be separated are supplied via a feeder to a screen upon which a layer of facilitating particles is disposed, the size of the facilitating particles being too large to fit...
patent 2004
document
Rem, P.C. (author)
Separation of particle fraction from particle stream in a fluid e.g. aqueous liquid medium under gravitational force based on difference in vertical velocity involves passing the fluid and particle in horizontal direction defining relative direction of movement; collecting first particle fraction and second particle fraction in respective...
patent 2004
document
Rem, P.C. (author)
Recovery of non-ferrous metal particles from a stream to yield non-ferrous metal-enriched and metal depleted fractions involves putting the stream onto a conveyor belt (1) as a mono-layer such that with the help of water at least the non-ferrous metal particles get adhered to the belt; subjecting the moist mono-layer to magnetic field rotating...
patent 2004
document
Rem, P.C. (author), Fraunholcz, N.O. (author), Van Kooy, L.A. (author)
The invention relates to a method of separating a particle fraction from a particle stream making use of gravitational force and which is performed in a fluid. This provides particle fractions that are collected in respective collecting means. According to the invention the fluid and the collecting means are moved in relation to each other...
patent 2002
document
Rem, P.C. (author), Fraunholcz, N.O. (author), De Bruijn, A.J.M. (author)
The invention relates to a method of separating particles in a fluid medium, wherein the particles have a density lower than that of the fluid medium. According to the invention the particles are subjected to an up and down moving flow of the fluid medium, whereby a barrier is present above the particles restraining said particles. It appears...
patent 2001
document
Rem, P.C. (author), Fraunholcz, N.O. (author), Dalmijn, W.L. (author)
Particles in a fluid medium are separated by feeding a mixture of particles into a separation chamber. The mixture of particles is treated by moving the medium up and down relative to the mixture of particles. A barrier is present above the mixture to restrain the particles. An Independent claim is also included for an apparatus for separating...
patent 2001
document
Rem, P.C. (author), Zhang, S. (author)
The present invention relates to a method of separating non-ferro metal particles using a rotating magnetic field. According to the invention the particles are surrounded by a fluid restricting the fall-velocity significantly, suitably a fluid having a density of at least 0.1 kg/l. The presence of such a medium causes the particle, if it is a...
patent 2000
document
Van Poppel, E.J.M. (author), Rem, P.C. (author)
The invention relates to a method of the continuous dehydration of sludge wherein, prior to dehydration, water is mechanically removed from the sludge and the thus obtained sludge of cutting consistency is mixed with heated spheres. According to the invention dehydration is carried out at reduced pressure, wherein the sludge from which water has...
patent 1998
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