Abstract: There is provided a method for processing broken glass particles subject to moisture, to which residues of stickers adhere. The method comprises receiving the broken glass particles continuously at a delivery point of a drum, transporting the broken glass particles as a stream of broken glass particles in the drum to a discharge point, wherein the stream of broken glass particles is removed from the drum, rotating the drum such that circulation and mutual friction of the stream of broken glass particles occurs, and applying a gas stream to the stream of broken glass particles and guiding the gas stream over the stream of broken glass particles to remove the residues of stickers, wherein the transporting of the stream of broken glass particles is decelerated in a bulge of the drum.

Abstract: The present invention provides a method and an apparatus for removing heavy metals such as gold from sand. A mixture of sand and metals is placed in a hollow tube which has an open end, an opposite closed end at a relatively lower position, an exterior, and an interior formed into spiral grooves. The grooves are arranged in a helical fashion so that metal caught in the grooves is carried toward the open end of the tube as the tube is rotated. Water is supplied to the tube to mix with the sand and metal, so that rotation of the tube causes relatively heavy metal to be washed from the sand and water mixture into the grooves. The mechanism can be transported to a location where heavy metals naturally occur in sand or other materials.

Abstract: A method for separation of heterogeneous products included in household waste (HW) comprises separating the products in a fractionation vessel containing a liquid. The waste includes components, of which at least some are capable of floating in the liquid. The components are exposed to a first essentially horizontal force (P1) in a first direction (D1) enforced by a flow of the liquid in the fractionation vessel and to a second essentially horizontal force (P2) in a second direction (D2), which is substantially different from the first direction (D1). The combined impact of the forces (P1; P2) on the components spreads the components and leads them to at least two collection areas. Products of varying buoyancy may thus be treated separately.

Abstract: A system for separating construction debris into low density debris and high density debris. The construction debris is delivered into a rotating drum having front and rear discharge openings. The lower portion of the drum is filled with water, and the debris is deposited onto the water, with the low density debris floating at the surface and the high density debris descending to the bottom of the drum. A plurality of high velocity water jets are positioned forwardly of the debris receiving location to create a turbulent high velocity water flow at an upper zone of the water in the drum to move the wood and other low density material toward a rear converging passageway that leads into the rear discharge opening. The higher density material is carried by a scroll type conveyor forwardly in the drum to a forward discharge location where rotating paddles lift the high density debris upwardly and thence move it into the front discharge opening.

Abstract: Method and apparatus for the separation of particles from a particulate suspension. The apparatus comprises a rotating flotation drum (10) with a feed distribution chamber (13). Particulate suspension feed enters the chamber through a delivery pipe (20). The feed passes through holes (21) into the particle collection chamber (22). Air is passed into the particulate suspension through a porous inner wall (29) and a froth is generated. The froth and particulate suspension pass into a froth cleaning chamber (32). The froth is washed by being sprayed from a washwater distribution pipe (47). Froth is removed from the drum by a froth scraper (49) through a froth removal chute (50). Unfrothed particulate suspension passes through openings (40) into a weir chamber (41) and is removed through a launder (45).

Abstract: A system both for the treatment of solid particles in a liquid and also for the treatment of a liquid by solid particles. The system includes a first scrolled barrel containing a liquid bath in which the treatment takes place, a second scrolled barrel attached to and communicating with the first barrel, the second barrel being constructed to prevent the free flow of liquid out of the bottom of the bath while at the same time allowing for the free passage of solid particles through the bottom of the bath, and a shaft for rotating the barrels. Both the first and second barrels are designed so as to insure a substantially uniform liquid level in the bath.

Abstract: A traditional gold pan 10 with a flat center base 11 with a spiral sidewall guide 20 from a vertical pan rim 13 to the pan base 11 incorporates a plurality of obtuse flukes 30 on the spiral extending into the spiral path to disrupt smooth flow of water and mineral matter. A spiralling guide is also provided on the base 11 leading to a cup 60 at the pan center. On the spiralling base guide 40 is a plurality of stratifiers extending from the guide base 40 into an outer spiral path. The pan is continuously rotated by an electric motor linked to the back of the by a belt and pulley.

Abstract: A system for separating solid particles in two fractions by means of a medium, the specific gravity of said medium being between the specific gravity of the particles of the first fraction and the specific gravity of the particles of the second fraction.

Abstract: An improved disc dryer for aggregate material which operates by rotating and impacting a tilted pan which holds the material being dried. Increased capacity is attained by transverse stabilizers on the impactor assembly, adjustable pressure air shock mounts for variable amplitude control of the impactor assembly, sets of dual support wheels upon which the pan rotates a reinforced support tract on the underside of the pan, and an adjustable feed box for supplying material to the pan at varying locations.

Abstract: An apparatus for separating coarse particles from a fluid or wet stream, optionally containing fine particles, includes a frame, a screen box, means attached to the frame and to the screen box for movably suspending the screen box on the frame for vibratory motion, a pair of opposing screens which are mounted in the screen box and which allow liquids and fine particles to pass through to the bottom of the screen box to separate discharge openings associated with each screen and allows coarse particles to pass over each screen and onto a single centrally positioned discharge chute, and motor means attached to the screen box for vibrating the screen box and screens mounted thereto. The apparatus can be used for such separation operations as dewatering, desliming and wet scalping, and is especially useful for applications wherein the oversize or coarse particles constitute a major portion of the total feed.

Abstract: An improved disc dryer for aggregate material which operates by rotating and impacting a tilted pan which holds the material being dried. Increased capacity is attained by transverse stabilizers on the impactor assembly, adjustable pressure air shock mounts for variable amplitude control of the impactor assembly, sets of dual support wheels upon which the pan rotates a reinforced support tract on the underside of the pan, and an adjustable feed box for supplying material to the pan at varying locations.

Abstract: An improved disc dryer for aggregate material which operates by rotating and impacting a tilted pan which holds the material being dried. Increased capacity is attained by transverse stabilizers on the impactor assembly, adjustable pressure air shock mounts for variable amplitude control of the impactor assembly, sets of dual support wheels upon which the pan rotates a reinforced support tract on the underside of the pan, and an adjustable feed box for supplying material to the pan at varying locations.

Abstract: An apparatus for obtaining enriched fractions from storage batteries is preferably three units connected in series, each of which has two concentrically disposed drums provided with helical strips on their inner wall. Concentrically to the axis of the outer drum is mounted an inner perforated drum to which are fastened perforated blades and are formed longitudinal openings over which are fixed reflectors and a screen. In its rear end, the inner perforated drum ends in a conic perforated passage to which is fastened a tube with a helical strip and outlet opening.

Abstract: To separate minerals, they are made up into a slurry A applied to a hollow tapered cylinder 301 spinning on its axis to generate 10 g centrifugal force. The cylinder 301 is also subjected to axial vibration at 5 to 10 Hz. The cylinder widens at a half-angle of 1.degree., and its axis is inclined at 2.degree. upwardly in the direction of widening. A film of slurry is held centrifugally to the internal surface of the cylinder and kept in suspension by the vibration. The denser (i.e. higher specific gravity) particles in the slurry tend to move preferentially radially outwardly (centrifugally) and to move downwardly in the boundary layer (under Earth's gravity). The action of the washing water B is to displace waste accidentally entrained with the higher-specific-gravity-particles. The valuable higher-specific-gravity particles overflow downwardly continuously at C and are collected.

Abstract: Separating elements (14) arranged about a central shaft (1a) rotate in common about the main axis (A) and individually about their longitudinal axes (B). A centrifugal distributor (6) distributes fine-grain mineral mixture mixed with fluid uniformly to the separating elements (14). In each separating element (14) the partial material flow (2a) is set in rotation about the longitudinal axis (B) by entrainment vanes (18) arranged in a first separating element section (15a) and the heavy fraction is centrifuged on to the separator wall (16a). In the second section (15b), formed as conical tubular worm conveyor, which contains no entrainment vanes, the heavy fraction is transported to the collecting chamber (21) and discharged through first discharge openings (22), the fine-grain mineral mixture being fluidized in pulsation on the separating wall (16b) by the combined rotating movements and the heavy fraction being concentrated.

Abstract: A device for separating fine articles as sand from a sludge containing ultrafine articles comprises a continuously rotated substantially horizontal drum having a helical web at the peripheral inside thereof. The mass flow to be separated is deposited in the drum at a place spaced from both ends of the drum. The drum moves the sand at the bottom of the drum to the discharge end thereof, where a water feeding system is arranged providing an oppositely directed fresh water flow which mixes with said ultrafine particles forming a sludge. The sand is elevated at the discharge end of the drum by a plurality of buckets and discharged via an inclined discharge chute through an outlet opening of the drum. The sludge is discharged through the opposite front wall opening through which the mass flow is fed within a feeding tube.

Abstract: A rotary bowl for separating particles of ore received in the bowl has a drive rotor engaging a bowl outer surface, that rotor being tiltable with the bowl. An idler rotor may be provided to engage the back outer surface, and to cooperate with the drive rotor to provide bowl support. Tiltable frame structure supports the rotors, which may be articulated.

Abstract: Ore separating rotary bowls are combined in staggered, closely spaced relation to facilitate efficient use and transportation.

Abstract: A machine for wet-processing ore to recover precious metal values such as gold. The machine includes a rotating, inner, perforate, hollow, ore-receiving drum and also a vibrating cradle for receiving water, sands, and other relatively fine material as is discharged through the perforations of such drum. The drum is provided with an inner spiral protuberance for advancing materials from the receiving to the discharge end thereof. Additionally, impact means as are disposed between turns of such spiral are employed to advance rapidly, larger materials such as rocks and coarse gravel through the drum. The cradle is provided with an auger for discharging materials from the cradle; said cradle is so designed and positioned as to concentrate finer materials such as gold-containing black sand, proximate a lowered, reservoir-end thereof for discharge.

Abstract: This invention provides an ore separating device of the rotating wheel type that includes a container, which may be of fiberglass, having a concave portion and an annular flange at its periphery with a pad having ridges on its outer surface complementarily overlying the concave portion and removably secured by fasteners. An annular rim complementarily overlies the peripheral portion of the container and is removably held therein by forwardly inclined vanes which agitate the ore during rotation of the container.

Abstract: An ore separation device is described in which a bowl-shaped separator is equipped with a drive shaft and mounted on a table for rotation of the separator. The drive shaft is secured to the interior of the hub of the separator by a spider or series of ribs, and the hub includes an interior rigid cylindrical member and an exterior flexible cylindrical member attached to the bottom of the separator.

Abstract: Disclosed is method and apparatus including a tank in which shredded corrugate is immersed and shuffled in a solvent fluid capable of attacking and weakening the adhesive bonding the core ply from the liner plies; said corrugate being advanced from its entry point into the tank to an exit point therefrom at a timed rate to limit its absorption of the solvent fluid prior to its transfer to delaminating apparatus.

Abstract: The present invention provides for a device and process for extracting heavy particles from lighter particles. The inventive device uses a unique riffle action, causing separation of heavy mineral from waste material, in combination with centrifugal force to retain the separated minerals in the concentrator. The concentrator processes a wide range of particle size feed for the extraction of heavy minerals. The device and process of the invention can extract a great percentage of very fine particles, as well as coarser particles. The machinery of the process can be installed in a roadworthy trailer for delivery and use at the excavation site.

Abstract: A method and apparatus for beneficiating a mixture of coal and a denser material are provided. The coal and ash mixture and a liquid medium are deposited into a rotating, sloping barrel having internal spiral flights and foraminous end sections. Coal and medium travel downwardly and the denser material is screwed upwardly. The positions of deposit of the mixture and the medium are adjustable, as are the rates of rotation of the barrel and the angle of the barrel.

Abstract: A trailer chassis supports an apparatus for separating a lighter specific gravity material such as coal from higher specific gravity waste material. An open ended, elongated cylindrical drum is mounted for rotation about its axis inclined slightly from the horizontal, the drum bearing helical strips along the inner wall to drive the waste towards the inlet end. Water borne coal and waste enters the upper end of the drum. One of a plurality of annular baffle plates at the rear of the drum maintain a water level permitting floating of the lighter weight coal off of the heavier waste, where it spills over the baffles. A wire screen covers openings within the drum wall to the rear, between longitudinally spaced baffle plates to permit dewatering and removal of fine waste from the coal which exits the open rear end after passing from chamber to chamber, partially defined by the annular baffle plates. An auger underlying the chassis drives the water and fine waste forwardly.

Abstract: In this invention a method and apparatus for treating particulate material are provided. The apparatus includes a rotatable cylindrical vessel with a concentrate outlet near its operatively lowest part and a particulate feed inlet and a tailings outlet above the concentrate outlet. Means are included in the apparatus for preventing particles packing together at the cylindrical wall during rotation of the vessel.

Abstract: PCT No. PCT/SE78/00092 Sec. 371 Date Aug. 10, 1979 Sec. 102(e) Date Aug. 10, 1979 PCT Filed Dec. 11, 1978 PCT Pub. No. WO79/00375 PCT Pub. Date June 28, 1979A bulk material is treated in a drum rotating in a bulk of the bulk material to be treated. The drum (16, 68) is provided with feeding-in openings (28, 70) in the cylindrical face of the drum. The bulk material tumbles around in the drum and is conveyed towards a discharge part in one end of the drum by means of a worm conveyor in the drum rotating in opposite direction to the drum. A treatment fluid is introduced into the drum through apertures (11a, 85) in the shaft of the worm conveyor. After the fluid has treated the bulk material in the drum it is led away through the same openings (28, 70) as those through which the bulk material is continuously being fed into the drum. Further the fluid advances up into the bulk of bulk material which therethrough also is treated before the material is fed into the drum.

Abstract: The present invention relates to a method of extracting gold from placer gravel. Whereas conventional techniques are relatively effective in the processing of coarse gold particles, i.e. plus ten mesh tyler, the present invention finds application in recovery of gold particles of all sizes from submicroscopic through coarse nuggets larger than ten mesh tyler. A rotating sluice box uses centrifugal force to enhance the sluicing process, and a centrifugal amalgamator then extracts gold from the concentrate thus produced, under centrifugal force. Gold is removed from the mercury by conventional techniques.

Abstract: A wet-type rotary sand classifier of this invention is provided with a plurality of helicoid blades which are secured onto the inner surface of the rotary drum along the entire length of the drum with their respective rear ends terminating at the rear end plate of the rotary drum at a desired angle relative to the axis of the rotary drum. Due to the above construction, the sand which has settled onto the inner bottom surface of the rotary drum can be transferred to the rearmost corners formed by the helicoid blades and the rear end plate whereby the thus transferred sand is raised upward by the helicoid blades corresponding to the rotation of the drum without carrying the water dams which are usually formed in the conventional wet-type sand classifier.

Abstract: Raw coal is fed into the upper end of an inclined internally scrolled barrel. Washed coal is screened after leaving the barrel, and the material passing the screen is divided into two batches, the coarser being returned to the barrel, the finer being separated into coal and waste by cyclone separators. The outputs of the separators are dewatered to provide liquor for effecting washing of raw coal in the barrel via a launder pipe, and to provide fluid for circulation from the screen to the separators.

Abstract: A device for separating heavier inpurities from solid bodies in a fluid flow comprising a trough-like casing accommodating a horizontal rotatable drum with a screen cylindrical side wall and groove-like elements move the impurities in the rotating drum towards an appliance intended to separate, receive and unload the impurities. The appliance is secured to the drum at the inlet for the fluid and the elements for moving the impurities are made as grooves arranged spirally in the side wall of the drum throughout its length. Each groove has a cylindrical side wall whose external surface protrudes beyond the external surface of the side wall of the drum, and two face walls are arranged perpendicularly to the cylindrical side wall.

Abstract: An apparatus for separating coarse and fine particles of intermediate specific gravity from an aggregate containing said particles of intermediate specific gravity as well as fine and coarse particles of higher specific gravity by use of a liquid of lesser specific gravity than any of said particles, which apparatus includes a pair of inclined, axially rotating, concentrically disposed helical ribbon flights separately secured within an annular housing such that the rotating action of said flights transports the fine and coarse particles of heavier specific gravity out of the flowing aggregate slurry. The fluid is then drained from the intermediate specific gravity particles passing with the fluid through the lower end of the annular housing in a screened cylinder.

Abstract: A rotary drum-type sand classifier of this invention is provided with a desired number of rows of sand discharging mechanisms at the rear end thereof.Between each pair of sand discharging mechanism, a water cleaning chamber is formed where the classified sand is cleaned with water fed from the rear outlet of the drum. Due to the above construction, the sand classifier of this invention can conduct the classifying and cleaning of sand to be produced simultaneously and efficiently.

Abstract: A mechanized reclaiming system for separating ferrous and non-ferrous metals from other materials derived from crushed and shredded automobiles employing a pair of conveyors mounted in a vertical array with the top one separating under vibratory action the small particles of material from the larger particles with the small particles going to a processing tower with this material being processed again into lighter and heavier materials. The lighter material is separated further by centrifugal action while the heavier material is separated into magnetic and non-magnetic material by magnetic means with the non-magnetic material being further separated into light and heavier material through water treatment in a rotating drum.

Abstract: Water is supplied to an inclined drum having a helical wall on its inner peripheral surface to cause the water to flow over the helical wall and also on the inner peripheral surface of the drum and to thereby form a flow of water running from the upper end of the drum to its lower end. Waste glass is fed to the drum while the drum is rotated at a high speed. During falling of the waste glass onto the flow of water, during settling of the waste glass in the water flow while it is being sent toward the drum upper end by the helical wall, and while the settled waste glass is maintained by the high-speed rotation of the drum in a suspension-resembling state in which pieces of the waste glass are dispersible and in rocking motion circumferentially of the drum, extraneous matter is forced toward the drum lower end and run off therefrom due to its resistance per unit weight thereof to the flow of water which resistance is greater than that of the waste glass.

Abstract: A wet-type sand classifier is characterized by having a unique cone-shaped and sand-discharging means which is disposed at the outlet of the rotary drum and is employed instead of a conventional belt conveyor means to improve the classification efficiency of the apparatus.

Abstract: Whole or shredded lead-acid batteries, together with a quantity of sodium carbonate and water, are fed continuously into a rotating drum separator containing a charge of grinding balls. Agitation of the mixture, aided by the internal drum construction features, further breaks up and degrades the battery fragments, neutralizes any contaminating electrolyte, transposes the finer particles of lead sulfate into lead carbonate, and forms a heavy-medium suspension of the active material on which organic battery fragments float. The suspension of active material constantly overflows from the drum at one end and carries the organic fragments with it into a first trommel, while sinkable fragments of grid metal and other battery parts of lower grade antimonial lead alloy are mechanically removed at the opposite end and deposited in a second trommel.