Abstract: In a pressurized materials processing system, separation of solid particulates from a gaseous process fluid is beneficially accomplished by use of a swept orifice discharger comprised of a cylindrical housing that is closed at one end and open at the other end. The housing contains an impeller within its interior and has a selected, presized orifice in its cylindrical side wall. In operation, the solid material and gaseous fluid are received in the swept orifice discharger housing and the solid material is continuously centrifugally urged toward the housing side wall so that it separates from the gaseous process fluid and collects on the housing side wall.

Abstract: An air cleaning device having a chamber receiving an incoming air stream wherein the improvement consists of the chamber progressively confining the incoming air stream to increase its linear and angular velocity and having an exhaust chamber receiving contaminants and isolating the same from the turbulence of the incoming air stream and a shield adjacent the dome of the device restricting the vertical clearance of the chamber receiving the incoming air stream.

Abstract: Smoothing washed garments (10) in the treatment chamber (11) of a finisher produces a considerable amount of fluff. To remove the fluff from the device in a trouble-free and effective manner the flowing medium carrying the fluff along is passed through a sieve belt (20) which conveys the fluff out of the device. Outside the treatment chamber (11) the fluff is removed in a suitable manner.

Abstract: In an extraction method and apparatus for extracting low biomass solid materials from a pneumatic transport line, the stream of gas having the solids entrained therein is caused to flow over a toothed extractor wheel. The toothed wheel picks out of the stream the solid materials which are then doffed from the tooth extractor wheel by the vanes of a rotating valve which seals the pressure of the pneumatic transport line from the ambient. The material doffed from the extractor wheel falls into the region between the vanes of the rotary valve and is then removed from the system as the vanes of the valve rotate. The air stream which is inducted into the extractor is first caused to pass through a diffuser which slows the velocity of the air stream and then the air stream is cause to flow along a curved duct section toward the extractor wheel causing the solid materials to flow to the outside of the curved duct section and into the extractor wheel to facilitate extraction.

Abstract: An air cleaning device for use in connection with clean air usage such as with internal combustion engines or to provide cleaned air for ventilation purposes, the air cleaner device comprising a directional hood having a substantially unrestricted air intake and a short throat directional separation chamber into which incoming air is drawn and in which incoming contaminants and moisture are centrifuged by a multiplicity of directional vanes onto and along an adjacent baffle member leading to an annular discharge chamber through which a driven spinner assembly ejects contaminants and moisture through rearward facing ports and creating a relatively low to high pressure gradient into and through the discharge chamber with the pressure gradient increasing to accelerate the movement of the contaminants and moisture through the discharge chamber and through the discharge ports with the pressure of ejection being greater than the external ambient air pressure.

Abstract: A flue gas dry scrubbing system achieves higher sulfur dioxide removal efficiency with a better utilization of alkali reagent chemicals as well as increased dry product recovery performance using a combination of spray drying with an alkali reagent slurry and with a recycled stream comprising a mixture of unreacted alkali, sulfite and sulfate reaction products and flyash which directly contacts the sulfur dioxide-containing flue gas. Preferably the recycled mixture contacts the flue gas in the spray dryer. The invention utilizes a splitting method and a splitter apparatus wherein the particle product powder is separated into two fractions for recycling and for product disposal. The rate of splitting is fully adjustable over a wide range.

Abstract: A compact, self-cleaning, cabinet, dust collector is provided. The collector housing is a single-piece, molded unit having recessed areas and a molded air inlet. Entering dust-laden air is directed into two flows in a passageway surrounding a suspended, flexible, pleated filter element. An inner wall of the passageway contains a precleaner upstream from the filter element. A collector ramp, at the bottom of the passageway, directs pre-cleaned matter to a removable hopper. A fan, supported above the open upper end of the filter element draws air through the collector. A fan motor is isolated from the housing interior in one of the recessed areas of the housing. To gain access to the filter element the fan is rotated upwardly and away from the filter element. To prevent the pleats of the element from collapsing, hot-melt spacers are provided on the pleat surfaces. The element is flex-cleaned by a rotatable mechanism located beneath and adjacent the bottom closed end of the element.

Abstract: A method of reducing the liberation of dust particles from a dry particulate matter is disclosed. The particulate matter is transferred to a location where it falls through the air, a small amount of water is introduced onto the particles of material in the material stream, the water being added in the amount of at least 1.01 % and no more than 1% of the weight of the dry particulate matter. The wetted particles contact each other and are distributed generally uniformally throughout the remainder of the material. The delivery of the wetted particles is delayed by a period of at least one second. A smooth path is provided for the material stream after the uniform distribution and prior to discharge at the discharge location.

Abstract: A method for converting conventional paint spray booths to booths for accommodating either liquid or powder spray paints comprising removing the conventional waterfall or cloth filter back and substituting therefore an exhaust system, velocity stacks, and a roll away filter cart having replaceable and interchangeable filter elements for filtering liquid or powder paints. The rollaway filter cart may also have a vibrating sheet for directing recovered powder toward the bottom of the filter cart.

Abstract: An air filter assembly (10) is disclosed which includes a dirty air chamber (22) having an air inlet (20) and a plurality of clean air outlets (34). In fluid communication with each air outlet (34) in the dirty air chamber (22) is a pleated media filter element (32) positioned so as to be suspended in a cantilever manner at an acute angle with respect to a horizontal plane. A distribution space (33) for reducing entering air velocities is created by the inclined uppermost filter elements (32) and the horizontal plane of the top surface panel (16). The lowermost portion (25) of the dirty air chamber (22) provides a collection area for particulate matter removed from the filter elements. The lowermost portion (25) includes a sloping surface (24) constructed of a material which flexes in response to pressure increases within the chamber (22).

Abstract: An air precleaning device for use in connection with clean air consumption and ventilation purposes such as with internal combustion engines, compressors, and the like and for ventilation such as in a vehicle cab or in clean air quarters generally, the precleaner comprising a directional hood receiving contaminant laden air, having an unrestricted air intake and a short throated directional separation chamber in which contaminants are separated from the incoming air and discharged and a passage directs cleaned air to its intended use.

Abstract: In order to limit the dispersion into the air of fines during the processing, handling and transport of fines-containing material, a hollow plow-like member is employed to insert the fines onto a conveyor belt well below larger particulate matter being conveyed by the belt. The plow-like member has a generally narrow V-shaped cross section, and the sidewalls flare outwardly at its lower terminus. The plow-like member is positioned just above the belt surface and is oriented with its leading edge facing the direction of material flow. Thus, the larger particulate matter lumps are lifted and folded back from each side of the plow-like member's centerline to define a space into which fines can be inserted through the tool interior. After the larger particulate matter lumps pass the member trailing edge, they fall back toward the belt center and cover the deposited fines.

Abstract: In filtering a tar mist-containing gas to remove the tar, a filter bag having an inner surface and an outer surface is coated with a tar absorbent powder by feeding the powder into the top of the bag for free-fall therethrough while maintaining a slightly reduced pressure outside the bag to deposit the powder on the inner surface of the bag and then feeding the tar mist-containing gas into the filter bag while maintaining a greatly reduced pressure outside the filter bag to collect a layer of tar on the coating, and thereafter stripping the powder containing the absorbed tar from the inner surface of the filter bag.

Abstract: In paper-making operations and the like, fibers of wood are frequently transported through piping as an entrainment in steam. An apparatus is disclosed for separating such entrainment and removing the fibers at one station and the steam at another station. Rotating blades give the entrainment a circular or rotating action whereby the heavier fibers move outwardly by centrifugal force to contact the wall from which the blades scrape the fibers and hurl them to discharge. The fiber-free steam is removed along an axial line perpendicular to the direction of movement of the separated fibers under the influence of a second set of blades.

Abstract: The engine of a self-propelled combine is mounted in an enclosure having an inlet through which cooling air is drawn by an engine-driven fan. The air is filtered by a rotating disk-like screen mounted over the air inlet before passing through a radiator adjacent the inlet. A duct extends across the face of the disk from its center to periphery, changes direction and terminates with an open end adjacent the inlet side of the fan by-passing the radiator. The duct is also open adjacent the face of the screen so that the fan draws air through the duct, (some of the air being necessarily drawn from inside the screen as it passes the duct opening) so that foreign material filtered from the mass of cooling air being drawn through the unobstructed portion of the screen and held on the screen exterior surface is removed and carried through the duct. A trash knife rigidly attached to the periphery of the screen extends outwards parallel to the screen's axis of rotation.

Abstract: An industrial loader vehicle, handling both wet and dry materials, has a single engine driving the vehicle to a pick-up site, powering all of the components to load the vehicle at the site, driving the vehicle to an unloading site and dumping the materials as desired at the unloading site. A powerful blower develops a high velocity air stream through a pick-up inlet conduit and a collector chamber tiltable on the vehicle for easy dumping of the collected material. A swingable and tiltable boom mounted on top of the collector presents the conduit for easy access to material located around and above the vehicle. The high velocity air stream sweeps the material through the conduit into the top of the collector chamber where it drops to the bottom of the chamber. The blower and surrounding environment are protected from materials entrained in the air stream by bag filters and cyclone separators mounted on the front end of the collector to tilt therewith.

Abstract: The present invention relates to a filter apparatus for the purifying of gases, having at least one filter space which has at least one upper inlet and one lower inlet for a filter medium containing solid particles which passes through said space, the gas to be purified flowing through said space in countercurrent to the filter medium. In this filter apparatus, at least one removing device which moves relative to the filter space, for instance a scraper, is provided at the outlet for the filter medium, said device moving through a cone of the filter medium which forms at the outlet so as to remove, in each case, at least a part of the filter medium from the cone.

Abstract: A wet type gas scrubber is disclosed and utilizes a ring dam or deflector ring around the periphery of the scrubber's inner tube to intercept and restrain the particulate Laden water as it flows along the outer surface of the inner tube. The deflector prevents the particulate Laden water from entering into the gas exhaust flow that is being emitted to atmosphere. The scrubber includes damper means in the gas inlet for regulating the velocity of gas through the inlet.

Abstract: An apparatus for separating particulate matter entrained in a gas, as air, from the gas. The apparatus has a housing surrounding a separation chamber. A vane assembly carrying a cylindrical bowl is secured to an upper portion of the housing. The vane assembly has a plurality of circumferentially spaced inclined vanes providing air inlet passages open to the separation chamber for directing the gas and particulates entrained in the gas in a circular motion in the separation chamber. A stack mounted on the bowl forms an annular chamber above the vanes in communication with the inlet of the passages formed by the vanes. An open mesh screen surrounds the annular chamber. An impeller assembly located in the lower portion of the separation chamber has a plurality of arms carrying paddles. The paddles are located in an annular discharge or exit chamber in communication with the lower portion of the separation chamber.

Abstract: A filter box contains within a rotatably mounted filter, structured as a drum, a fiber preseparator cooperating with such filter. The fiber preseparator has a ventilator at its inlet and operatively flow communicates with a fiber separator. This fiber separator contains a movable plunger or equivalent structure, by means of which the separated fibers are compacted and ejected into a collecting container. The air flowing through the filter effluxes through an opening in the filter box into the machine room or area containing the textile machines with which the filter box is used. The air responsible for transport of the fibers from the preseparator into the fiber separator, following separation from the fibers, is returned back to the suction side of the ventilator and again into the preseparator. A suction tube cooperates with the inner side or wall of the rotating filter drum. This suction tube likewise flow communicates with the suction side of the ventilator by means of a dust separator.

Abstract: An air inlet grille for an engine compartment of a military ground vehicle sed in dusty atmospheres, e.g. the desert. The grille comprises a number of relatively thick air-guiding louvers of sinuous shape, each louver being relatively thick in the transverse direction so that the grille has ballistic properties, i.e. the ability to deflect or intercept enemy projectiles directed toward the engine disposed behind the grille. Each louver includes or contains a dust removal mechanism immediately downstream from each air-turn surface on the louver, whereby the grille is enabled to clean the dust-laden air, thereby preventing ambient dust from coating the engine and/or the air passages of engine coolers and radiators.

Abstract: A filtering apparatus for the filtering of fibers and equivalent material from flowing air, and in particular for use in textile operations, has been invented in which the fiber material is firmly compacted so that as much fiber material as possible may be accommodated in a given volume of a collecting container attached to the filtering apparatus. For this purpose the filtering apparatus has a hollow fiber filtering assembly into which the flowing air is guided, a conveyor screw and a motor to drive the conveyor screw toward an outlet of the filtering assembly. The filtering assembly also includes at least one filter, with the outlet located downstream in the direction of movement of the fiber material, and at least one braking component located near the outlet which serves to brake the motion of the fiber material induced by the conveyor screw and to compact the fiber material firmly.

Abstract: An apparatus for the separation of particles from a gas of the type which has filter elements disposed around a drum located in the center of a housing with a shutter mechanism. The improvement of the present invention also relates to an apparatus which allows separation and emptying of filter elements by the shutter mechanism and particle separation without venting of particles to the atmosphere. The apparatus is particularly useful for instance, for asphalt mixing plants, stone quarry or foundry dust separation and collection.

Abstract: A cyclone separator comprising a separating tower defining a separating chamber having a gas inlet at the upper portion for introducing gaseous fluid having particles suspended therein with a tangential velocity component, and outlet pipe means co-axially with the separating chamber at the upper portion thereof to allow the gaseous fluid to flow out of the separating chamber. The separating tower has a bottom which is slightly inclined with respect to a horizontal plane to provide a lowermost portion in the bottom, and a particle outlet port at said lowermost portion. A vibrating motor applies vibration at least to said bottom of the separating tower, and a baffle plate is provided in said separating chamber above and spaced from said particle outlet port.

Abstract: This invention relates to an improvement in an apparatus attached to an air cleaner such as of an internal combustion engine as in connection with a farm tractor wherein the contaminants drawn into the air cleaner are evacuated to the atmosphere therefrom by said apparatus wherein the improvement consists in having the apparatus continuously operative, providing a positive evacuation of contaminants and comprising a relatively small sized motor driving an impeller which receives contaminants from the air cleaner and evacuates or expells the same and embodies the use of a plurality of vanes whereby the engine associated with the air cleaner is prevented from drawing a reverse flow of air through the exhaust passage of the apparatus and the vanes serve as closure means whereby there is no open passage through the apparatus to the cleaner and thus only a low powered impeller is required to expel the comtaminants received.

Abstract: A carrier frame supports a renewable filter cartridge for rotation within a filter housing that includes an annular side wall with an air inlet and a bottom wall having an air discharge opening communicating with a carburetor for an internal combustion engine. A pedestal supports the carrier frame via an anti-friction bearing within the filter housing. The pedestal has diammetrically-opposed annular wall segments that close the airflow space between two adjacent arcuately-shaped impellers that join together upper and bottom cover plates forming part of the carrier frame. The upper cover plate has an outer diameter that corresponds to the annular opening in the renewable filter cartridge while the bottom cover plate has an outer diameter that is approximately equal to the outside diameter of the renewable filter cartridge for support thereof. The bottom cover plate additionally supports vertically-extending fins located at the outer peripheral surface of the filter cartridge.

Abstract: Relief valve means for dissipating positive compressor pressures which could exist within an industrial vacuum unit after the unit is shut down. A high capacity one-way flow type of valve is mounted on the unit to allow a vacuum to be created within the unit during normal operation and to prevent a build-up of undesirable positive pressure that can result from the brief reverse operation of the compressor immediately after the power is shut off.

Abstract: To increase the degree of separation of liquid droplets from a stream of gas by means of a separator consisting of a packet of wire gauze arranged in a pipe, the packet is subdivided along its height by discharge channels arranged transverse to the direction of flow.

Abstract: An efficient unit for placement on the exhaust cylinder of a dust collector, etc., the unit having a cylindrical filter through which the air passes and deposits dust thereon, the latter being removed by brushes for gravity deposit in an annular trough through which a scraper passes to move the dust particles to an exhaust tube.

Abstract: This invention relates to an improvement in an apparatus attached to an air cleaner such as of an internal combustion engine as in connection with a farm tractor wherein the contaminants drawn into the air cleaner are evacuated to the atmosphere therefrom by said apparatus wherein the improvement consists in having the apparatus continuously operative, providing a positive evacuation of contaminants and comprising a relatively small sized motor driving an impeller which receives contaminants from the air cleaner and evacuates or expells the same and embodies the use of a plurality of vanes whereby the engine associated with the air cleaner is prevented from drawing a reverse flow of air through the exhaust passage of the apparatus and the vanes serve as closure means whereby there is no open passage through the apparatus to the cleaner and thus only a low powered impeller is required to expel the contaminants received.