Carpco, Inc.

Other

Outokumpu Oyj

Frank S Knoll

Arnold H Jackson

Joseph B Taylor

Allen D Nease, Jr

Edward J Sommer, Jr

Garry R Kenny

Timo U Niitti

David W Mitchell

Michael D Robertson

Clyde B Webb

Joseph Boehm

Weng S Kow

Adrian Perregaux

Peter J Hoyles

Replaceable inserts are provided in depressions of a spiral separator wherein the inserts have surface irregularities to optimize the spiral efficiencies in separating feed stock materials. These irregularities become worn by the materials and would require replacement of the spiral, ordinarily, whereas new inserts herein greatly extend the useful life of the spiral. Also, if the feed of the spiral changes appropriate new inserts may be used to separate the changed feed. The inserts may be any shape, circular being preferred when adjustability is needed.

Spiral separator with replaceable trough sections

A process and an apparatus for separating particles according to the strength of their magnetic susceptibilities includes a mass of loose particles transported on a moving surface over a plurality of long, thin, magnets separated by thin straps of ferromagnetic metal. The magnets are arranged such that the polarities of two adjacent magnets engaging opposite sides of the same ferromagnetic strap are identical. Particles are separated on the moving surface and when that surface passes around a horizontal axis, the particles fall off the surface into selected areas according to the magnetic susceptibilities of the particles. Cooling air flows between the moving surface and magnets to enhance operation and the useful life of the magnets.

Process and apparatus for separating particles of different magnetic

A spiral trough separator having a vertical axis and adapted to separate fine particles from a liquid slurry stream of those particles flowing down the spiral trough. The trough has spaced groups of parallel grooves, transverse to the flow of the slurry, a drain adjacent the lower ends of the grooves for collecting concentrates or fines of the particles and a wash liquid outlet to deliver liquid into the slurry stream to remove impurities from such fines prior to collection in the drain. The wash liquid outlet is adjustable with respect to the wash liquid flow in the wash liquid trough of the spiral to select the appropriate volume of wash liquid to be introduced into the liquid slurry stream.

Spiral separator

In an inclined pan feeding apparatus for presenting or discharging particulate material onto a conveyor including a feed hopper, a generally horizontal pan to receive particles from the hopper and deliver the particles in a thin layer to a conveyor belt or roll; the improvement wherein the pan is adjustably inclined downwardly from the hopper to a spillway edge above the belt or roll, the pan being attached to the stationary frame through a front pair of vibration absorbers and a rear pair of vibration absorbers, a rotating motor with eccentric weights is attached to the pan to cause the pan to vibrate generally horizontally, the motor being selectively positioned vertically on the back of the pan, and the front pair of vibration absorbers being selectively positioned at spaced locations along the sides of the pan; and a skirt of flexible plastic fringe hanging closely above and parallel to the spillway edge of the pan.

Adjustable feed accelerator for particle separator

Apparatus for receiving particulate product, spreading the particles in a thin layer, and feeding them to a surface of an electrostatic separator, comprising a hopper with a slot discharge opening above a vibrating inclined distribution plate over which the particles are distributed and move to a lower edge where they fall into the feed end of a substantially vertical chute which is capable of discharging the particles at a selected velocity in a generally horizontal direction, the particles passing through the hopper discharge slot being controlled by an adjustable gate to provide uniform feed to the distribution plate and to control the feed rate into the chute, the chute being adjustable to control velocity of particles leaving the chute, and the direction of discharge from the chute, and a bypass conduit to selectively conduct particles directly from the hopper to a point of discharge which avoids the vibrating plate and the vertical chute.

Particle feeding apparatus

A device for feeding particulate material to a moving surface comprising a hopper for containing particulate material and having an outlet in the bottom for dispensing that material; a moving surface spaced downwardly from the outlet of the hopper and adapted to receive particulate material distributed across the surface; a receiver spaced downwardly from the outlet of the hopper to receive particulate material from the outlet and to direct that material generally horizontally to fall from an open edge of the receiver; and a vertical chute to receive the particulate material falling from the open edge of the receiver and to direct it downwardly and then horizontally to a dispensing edge spaced vertically above and closely adjacent to the moving surface.

Device for feeding particulate material

An electrostatic separator for separating or removing materials according to their polarizability which comprises a cylindrical surface having a plurality of closely spaced conductors embedded in an electrical nonconductor with the surface adapted to be rotated about its longitudinal axis in close proximity to the material from which loose particles are to be removed. The cylinder is rotated through successive zones wherein the surface of the cylinder is charged while in close proximity to said material causing the particles to migrate to the surface, then through a zone wherein the surface is oppositely charged so as to repel particles therefrom, and collecting and disposing of the particles removed from the material. This apparatus and method has many applications wherein fibers, dust, contaminants, and the like may be removed from the desired product.

Multifield electrostatic separator

An apparatus and method are provided for separating electrically neutral solid materials having different dielectric, shape, density or dipole moment properties by passing a mixture of such materials through a nonuniform electric field generated between an electrically charged arcuate surface and a flat horizontal grounded surface having a receiving end, a discharge end and two lateral edges, said arcuate surface being spaced above said horizontal surface and extending from about said receiving end to about said discharge end and from one of said lateral edges to at least midway between said lateral edges; a means for introducing said solid materials into the electric field near said receiving end and conducting said material through the field to said discharge end; and recovering one type of material from said lateral edge adjacent said arcuate surface and another type of material from said discharge end of the horizontal surface.

Material separation by dielectrophoresis

A method of treating a refuse fraction to separate a desired valuable constituent, such as a glass concentrate, is disclosed in which a particulate refuse fraction comprising glass, stones, metal and the like is fed to the top of a rotating support comprising a grounded conductive underlayer and a nonconductive overlayer and the particles are pinned to the rotating support by ion bombardment. The stone and metal particles tend to separate first from the roll while the glass particles have a greater tendency to remain pinned to the roll and can be collected as a separate fraction.

Method of treating refuse to separate valuable constituents

A method of separating vermiculite from the associated gangue is disclosed in which the ore is fed to the top of a rotating support comprising a grounded conductive underlayer and a nonconductive overlayer and the ore particles are pinned to the rotating support by ion bombardment. The gangue tends to separate first from the roll while the vermiculite particles have a greater tendency to remain pinned to the roll and can be collected as a separate fraction.

Method of separating vermiculite from the associated gangue

Magnetic separator for particulate materials

A feed system is disclosed herein for use with an electromagnetic eddy current materials separator for supplying material to be acted upon by the eddy current magnet directly into the regions strongest influence of the magnetic field of said magnet. Automatic blockage release means are provided to terminate jam-ups in the event that a blockage should occur in the delivery of feedstock to the region of influence of the magnetic field of the magnet.

Feed system for an electromagnetic eddy current materials separator

Apparatus for separating non-ferrous metal from waste material comprising a grounded rotary conductive drum, means for feeding waste material to the drum, a D.C. corona electrode, an A.C. corona electrode, a D.C. static electrode and a splitter. The method of separation comprises magnetic separation of ferrous metals, sizing of the waste material, preliminary classification to remove dust and low density particles, drying to reduce the moisture content, feeding the waste material to the rotating grounded roll and subjecting the material successively to D.C. corona discharge, A.C. corona discharge and a D.C. electrostatic field.

Growing community of inventors

Jacksonville, FL, United States of America

Frank S Knoll