Abstract: An apparatus and method for transferring a particulate material in a non-contact manner. The apparatus has a driving device including a nozzle curved surface portion fitted to the transfer pipe to join with the inner wall surface of the pipe. The nozzle curved surface portion has a curved surface whose diameter continuously increases from the inner wall surface. The driving device further includes an annular gap-forming member that forms a nozzle gap between it and the nozzle curved surface portion. A fluid is caused to flow into the transfer pipe from the driving device, thereby forming a buffer layer of a spiral flow in the vicinity of the inner wall surface of the transfer pipe and thus keeping the particulate material in a non-contact state.

Abstract: A dispensing apparatus for the dispensing of ultra-fine particles on a dry basis in a reproducible manner. The apparatus includes a first gas-solids suspension chamber having particle fluidization means adapted thereto, and a conduit adapted between the first gas-solids chamber and a second gas-solids chamber for communicating via at least one particle orifice particles between the chambers. A high velocity gas stream provides a pressure difference between the chambers whereby a low pressure zone is created within the conduit thereby drawing in particles from the first gas-solids suspension chamber into the second gas-solids suspension chamber via the conduit. The apparatus further includes a combination of a withdrawal feed and a solenoid valve to direct particles from the second gas-solids suspension chamber into a collection area.

Abstract: A pair of concentric tubes having an inlet and an outlet with the outer tube being closed at either end and the inner tube having a plurality of holes with compound angles designed to impart a swirling motion of the air admitted into the interior of the inner mixing tube. The holes are judiciously located around the inner tube for creating a swirling pattern. The inlet of the tubes leads the dry particles of two different compositions intended to be mixed into the mixer and the outlet leads the mixture to the next station utilizing the mixture. Air admitted internally of the outer tube feed the plurality of holes and the force of the air can be controlled to control the transport of the mixed particles.

Abstract: It is an object of the present invention to provide a novel carrying apparatus for carrying spherical objects such as spherical semiconductors of silicon in which the spherical objects are not contacted with an inner surface of a pipe-shaped body while they are being carried in the pipe-shaped body. The carrying apparatus for carrying spherical objects is provided with a spiral current generating means for generating a spiral current of fluid, and the spiral current generated by the spiral current generating means is introduced into a passage of the spherical objects. The spiral current generating means includes a rotary shaft 3 in which a carrying passage 2 is formed in a direction of the central axis and a spiral groove 3b is formed at a predetermined position on the outer circumferential surface. Further, in the rotary shaft 3, a jet pipe 3a connecting the carrying passage 2 with the spiral groove 3b is formed.

Abstract: A suction nozzle, comprises a suction nozzle tube having a first end for connection to a suction line and a second end forming a suction port, and at least one lateral opening in the suction nozzle tube in a zone of the suction port for a further flow extending in a direction tangential to the suction flow wherein the at least one lateral opening is formed by at least one bent wing raised from the suction-nozzle tube. The suction nozzle may be surrounded by outer guide walls forming a box in which a pressure nozzle is directed into the suction port. The pressure nozzle flow may be used to generate a shearing force flow superimposed upon a vortex flow generated within the suction nozzle.

Abstract: A device comprising a flat susceptor (14) rotating parallel to a reference surface (30) about a rotary shaft (20) perpendicular to this surface and comprising means for obtaining the stability of the susceptor held in sustentation and means for obtaining its rotary movement, is characterized in that these means are constituted by the ferromagnetic elements (11) in the susceptor, of the rotary shaft, of the reference surface, of a magnetic actuating assembly (70), and of a gas inlet (40).

Abstract: A spiral flow connector imparts a spiral flow of air to urge parts being transmitted toward a central axis to avoid contact with the walls of the transmission passages of a pneumatic transmission apparatus. The invention is especially useful for preventing damage to fragile parts such as small resin molds, metal parts or powdered material. The spiral air flow prevents air stalling in the transmission passages.

Abstract: Mat forming apparatus comprising, in combination, a hollow material transporting member, drive structure for producing a pressure differential across spaced portions of the transporting member so that material is propelled from one of the spaced portions to the other within the hollow transporting member, material directing structure communicating with the drive structure for receiving material from the hollow transporting structure and, responsive to the drive structure, operative to direct the received material in a predetermined path, the hollow transporting member having a non-linear inner surface so that flow in the hollow transporting member is turbulent causing the material being transported therein to experience turbulent flow in being propelled from one of the spaced portions to the other, and structure associated with the material directing structure for receiving the material and confining the received material in a defined space.

Abstract: A method and apparatus for injecting sludge into a kiln includes a pump for pumping sludge, a conduit for conveying sludge to the kiln including an attrition portion for attriting the sludge into smaller particles, and a conduit enclosing the attrition segment for entraining the particles in a stream of combustion air to carry the particles into a kiln. The attrition portion includes a plurality of passageways connected to a source of compressed air to provide a plurality of jets of air to attrite the sludge into discrete particles and aid in ejecting the sludge from the conduit. In a preferred embodiment, the attrition segment includes nested, frusto-conical segments; each having a plurality of passageways which project jets of compressed air radially inwardly to slice the sludge mass within the segment into smaller particles. As the particles exit the attrition segment, they enter an extension tube having a helical internal rib which imparts a swirling motion to the particles.

Abstract: A particle conveying apparatus includes a transfer tube defining a flow passageway between inlet and outlet ends and defining a flow axis and includes a housing adapted for connection with a source of fluid pressure and for directing fluid from the fluid pressure source into the flow passageway between the inlet and outlet ends whereby the directed fluid travels spirally along the flow axis toward the outlet end. The housing defines a generally toroidal chamber surrounding the tube, the tube having an angled flow control slot providing communication between the chamber and the flow passageway, and the pressurized fluid is directed tangentially into the chamber to cause the fluid to enter the flow passageway through the slot in a spiraling direction toward the outlet end.

Abstract: A device for feeding rivets around a small radius curve includes a rivet guide shoe that fits into a recess in a movable shuttle body that can be moved to position a drill cavity, the rivet insertion device, and a rivet die sequentially under the machine axis for drilling, rivet insertion, and rivet upsetting. The rivet guide shoe has a curved, arched slot which is aligned with the delivery end of the rivet supply line when the shuttle is in its rivet insert position. The rivet is blown through the rivet supply line into the curved, arched slot in the rivet guide shoe. It travels around the slot and enters a rivet guide tube that is fitted into the end of the slot and has an axial passage equal in diameter to the diameter of the curved, arched slot, so the rivet encounters no edges or other discontinuities in the transition from the slot to the guide tube.

Abstract: Buoyant particles entrained in a transport water are delivered to the bottom of a flooded vessel, overcoming the buoyant force of the particles and other fluid dynamics problems associated with entrained fluid flow. In a preferred embodiment, ice particles are delivered through a conduit to the bottom of a flooded thermal storage tank by entraining the ice particles in a swirling transport water.

Abstract: A manifold is disclosed which is adapted to be used with a system such as a truck mounted vacuum system and includes a nozzle which re-routes a portion of the exhaust air from the blower associated with the vacuum system back through the nozzle into the intake vacuum hose, thus creating a boost heretofore unavailable. A second embodiment teaches an insert to be used at a junction in the line to further increase the efficiency of the loading system.

Abstract: The lance of the invention includes a sleeve (2A) which conveys air under pressure around a central tube (1) which conveys the pulp that is to be sprayed and dispersed. The wall of this tube is pierced by separation holes (5) to inject a gaseous lining around the pulp, by break-up holes (3) for breaking up said pulp, and by rotation-imparting holes (4) in the vicinity of the outlet (1B) from the lance. The invention is particularly applicable to feeding a boiler with coal powder.

Abstract: In a method of passing a wire, cable, optical fiber or the like through a passage, a coanda spiral flow unit is connected to the passage, a pressure release port is provided along the length from the coanda spiral flow unit to the end of the passage, compressed gas is supplied from a portable-type compressed gas supply through a coanda slit of said coanda spiral flow unit, a conductor or a guide is inserted through an end introducing port of said coanda spiral flow unit and passed through the passage. Smooth passing operations can be conducted at high speeds, even through a long and thin passage with many bends.

Abstract: A method and apparatus for collecting dust and particles produced in machining a workpiece. The method and apparatus uses a shroud formed by a pair of frusta-conical walls spaced apart from each other to define an annular air passage therebetween. The shroud is mounted so that the machine tool extends through a central opening formed in the shroud. The annular air passage has an upper air inlet intersecting the air passage with a cylindrical component and a lower air outlet facing inwardly toward the machine tool. Pressurized air flows into the air passage and is thus directed from the air outlet toward the machine tool in a swirling manner. At the same time, a vacuum withdraws air from within the shroud to collect dust and chips produced by the machine tool.

Abstract: A lock apparatus for introducing granular dry material into a pneumatic conveying conduit (32), for example of a concrete gun, consisting of a material feeding hopper (4) having a shut-off valve (6) actuable by a pneumatic working cylinder (8). Beneath the shut-off valve (6) two hose portions (16 and 22) are arranged in series and on each of said portions a hose squeezing means (34 and 38) engages between which the hose portions (16 and 22) form a lock chamber (44) which is additionally provided with a blowing air connection (62). By the shut-off valve (6) and the upper hose squeezing means (34) an antechamber (42) is formed. When the upper hose squeezing means (34) is closed and the shut-off valve (6) opened the antechamber (42) is filled from the feeding hopper (4) by free fall. At the same time the lock chamber (44) can be discharged into the blow conduit (32) by opening the hose squeezing means (38).

Abstract: An enriching device consisting of a container which comprises a removable tightly fitting metal body the sparingly volatile material being present in a coiled groove. During operation of this device transverse flows and shortcuts, respectively, of the carrier gas flow occur. To assure that the carrier gas flows through the material without having an escape possibility, the groove (5) is made either in an outer wall of the metal body (8) or in the bottom (4) of the container (1), and the parts (6) present between the individual turns of the groove have a cutting edge, i.e. a cross-sectional profile in the form of a wedge, the tip of which is in contact either with the smooth inner wall of the container (1) or with the smooth lower side of the metal body (8). The device is suitable for adjusting a defined mass flow of sparingly volatile materials which are used as starting compounds for chemical deposition from the gaseous phase.

Abstract: A device comprising a flat susceptor rotating parallel to a reference surface about a rotary shaft perpendicular to this surface and comprising means for obtaining the stability of the susceptor held in sustentation and means for obtaining its rotary movement, is characterized in that these means are constituted by the structure of the susceptor, of the rotary shaft and of the reference surface, which cooperate with each other under the action of one or several flow of gas.

Abstract: Equipment for dispersing particulate material in a stream of gas comprises a duct to contain the stream of gas, a bluff body mounted and extending transversely within the duct to create turbulence in the gas stream, and means for introducing particulate material immediately upstream and/or downstream of the bluff body, whereby the material becomes uniformly entrained in the gas stream. The invention is of particular value for introducing alumina for dry scrubbing of HF-containing exhaust gases from aluminum electrolytic reduction cells.

Abstract: A spiral gas stream is generated in a pipeline when a uniform flow of gas flowing in a cylinder having inner diameter larger than that of the pipeline is introduced through a funnelform reducer into the inlet of the pipeline and bringing the mean gas stream velocity in the pipeline faster than 20 meter per second. The uniform flow of gas is formed in the cylinder easily when outside low pressure gas is fed into the cylinder through a feed gas inlet pipe installed diagonally at the side of the cylinder apart from the bottom plate so as to make the flow line of the feed gas to cross the axis of the cylinder and inclined toward the bottom plate. When solid particles are introduced into the spiral gas stream zone, they are transported to the outlet of the pipeline. As the compressed gas layer is formed along the inside wall of the pipeline by the spiral motion of gas stream, solid particles don't contact directly with the inside wall of the pipeline and don't hurt it.

Abstract: Uniform flow of gas flowing in a cylinder having inner diameter larger than that of a pipeline is introduced through a funnelform reducer into the inlet of the pipeline, where uniform flow of gas turned to a spiral gas stream by bringing to the mean gas stream velocity faster than 20 meter per second there. When solid particles are introduced into the spiral gas strem zone, they are transported to the outlet of the pipeline. A compressed gas layer is formed along the inside wall of the pipeline by the spiral motion of gas stream, and the layer prevents the direct contact of the solid particles to the inside wall of the pipeline which causes the erosion of the pipeline. As the center part of the cross section of the pipeline becomes very low pressure, especially along the axis of the pipeline, solid particles containing or accompanying volatile matters are desiccated or concentrated as a result of the evaporation of volatile matters while being transported in the pipeline.

Abstract: An electrostatic powder spray gun is provided with an arcuate nozzle tube forming a curved passage between an inlet and outlet orifice. A mixture of powder particles and a carrier gas injected into the inlet orifice is subjected to a swirling motion prior to exiting the outlet orifice. This swirling motion is caused by helical grooves cut into the inside surface of the arcuate tube adjacent to the outlet orifice. An electrode imparts an electrical charge to the particles as they exit from the nozzle tube.

Abstract: A method for transporting particulates wherein the particulates are entrained in a transport air stream. An energizing air stream is introduced into the pipeline to form an air encasement stream between the inner wall of the pipeline and the transport air stream. The air encasement stream is introduced into the pipeline opposite directions to form a forward leaning movement of encasement air at a higher velocity than the transport air.

Abstract: A nozzle for expelling a fluid stream and dispersing and/or mixing same with(in) an ambient fluid is comprised of a resiliently flexible tube having an effective length at least equal to one harmonic wavelength of a coupled fluid stream for flexural resonant vibration of the tube as the stream is conducted therethrough, wherein the tube has a transverse cross-sectional profile and a longitudinal cross-sectional profile, at least one of which possesses a motion-affecting geometric gradient. The tube of the nozzle may include vanes disposed for creating turbulence within the ambient fluid. The nozzle is preferably formed from an elastomeric material and includes an enlarged, plastically deformable shoulder region at its proximal end for radial distention upon passage of any particulate material within the fluid stream having a dimensional aspect in excess of the bore dimension of the tube.

Abstract: A section of tube with a series of inwardly directed projections is placed in the main conduit of a pneumatic applicator, upstream of the primary distribution head. The inner projections in the tube serve to center the direction of the blown granular material into the primary distributor head. The projections are arranged in annular rows with the projections of each row being offset from those of an adjacent row.

Abstract: A blow-moulding machine comprises a mixer for mixing refractory particles with a binder and a hardener or the like, a main tank for transporting moulding sand, a booster provided subsequently to said tank, a blast hose, and a blowing nozzle mounted at the tip end of said hose.

Abstract: The disclosure describes a method and a device for pumping fiber suspensions of high consistency. Shear forces disrupting fiber flocs are induced near the front edge of the vanes of the impeller in a centrifugal pump which fluidize the fiber suspension hereby converting it into an easily pumpable state. This is effected by an inlet part having recesses and/or lobes in its inner surface in front of the impeller which cooperate with a rotor having an outer surface in which there are recesses and/or lobes disposed into the inlet part.

Abstract: A method and apparatus for the continuous transfer of particles from a gaseous conveying medium to a liquid conveying medium wherein a liquid is introduced into a cone-shaped inducer so that the liquid flows along the inducer's periphery toward its vertex. A stream of the gaseous conveying medium and entrained particles is directed into the center of the inducer. The particles impinge the liquid and are carried away by it and the gas is exhausted.

Abstract: A continuously operating mixer for loose or flowable material. The mixer includes a cylindrical mixing drum, a shaft which rotates in the drum and is provided with mixing instruments, a feeding or supply device with an inlet chute, and structure to deflect or reverse the incoming material to be mixed in the direction of the axis of the mixing drum, which in an end region thereof has a mixed material discharge. A nozzle-like air inlet channel, which conveys a compressed air flow, opens into the lower region of the inlet chute; an injection channel is connected to the air inlet channel and is directed toward the inlet opening of the mixing drum; this injection channel is flow-connected with an air suction channel which faces away from the inlet opening of the mixing drum; and these channels are consecutively subjected to the air flow of at least one blower.