Abstract: The invention relates to an actuator valve 136 of an air operated double diaphragm pump 100. The actuator valve 136 includes a valve housing 138, an inlet 142 for receiving air, a first set of ports 144a,144b for exchanging the air with air chambers 132a,132b, and a second set of ports 146a,146b for exhausting the air received from the air chambers 132a,132b into the atmosphere. The actuator valve 136 further includes a valve piston 148 accommodated within the valve housing 138. The valve piston 148 is configured to reciprocally slide within the valve housing 138 and has a bore 152 at one end. The actuator valve 136 further includes an end plate 156a,156b at each end of the valve housing 138, and has a boss 158 at the corresponding end. The boss 158 and the bore 152 are arranged such that the boss 158 mates with the bore 152.

Abstract: A machine for distributing insulation material from a package of compressed insulation material has a chute having an inlet end and an outlet end, the inlet end configured to receive compressed insulation material. A lower unit has a shredding chamber configured to receive the insulation material from the outlet end of the chute. The shredding chamber includes shredders and at least one agitator configured to condition the insulation material, thereby forming conditioned insulation material. A discharge mechanism receives the conditioned insulation material exiting the shredding chamber and distributes the conditioned insulation material into a distribution airstream. A blower is configured to provide the distribution airstream flowing through the discharge mechanism, the blower driven by a blower motor.

Abstract: An air-guiding casing of a ventilation fan includes a main body and an air-guiding tube. The main body forms a compartment and includes an inlet and an outlet. The inlet and the outlet are in communication with the compartment. A first engaging portion is arranged on a part of an edge of the outlet and on one side of the main body. The air-guiding tube has an engaging end and an outlet end opposite to the engaging end. A second engaging portion is arranged on the engaging end. The first and second engaging portions are engaged with each other.

Abstract: A centrifugal fan according to a preferred embodiment of the present invention includes an impeller, a motor portion, and a housing. The housing includes an upper plate portion, a lower plate portion, and a side wall portion. The upper plate portion or the lower plate portion includes an air inlet. One of the upper and lower plate portions and the side wall portion together define a single housing component molded by casting. A portion of the one of the upper and lower plate portions which is along a boundary between the side wall portion and the one of the upper and lower plate portions defines an increased thickness portion arranged to have an axial thickness greater than that of a remaining portion of the one of the upper and lower plate portions.

Abstract: A blower includes a fan; and an air duct having a passage formed therein, the air duct guiding the air and blowing the air onto the corona discharger, the air duct including an increasing-width portion in which a passage width gradually increases downstream in an air flow direction, a decreasing-height portion in which a passage height gradually decreases downstream in the air flow direction, an extension portion extending from a downstream end of the decreasing-height portion to a position near the corona discharger, a bent portion that is bent from a downstream end of the extension portion toward the corona discharger, an opening formed at a downstream end of the bent portion, and a plate-shaped member disposed in the passage at a position on an inner wall of any of the decreasing-height portion and the extension portion, the inner wall being on the corona discharger side.

Abstract: A method and an apparatus for pumping a mined material in the form of a coarse ore is disclosed. The method comprises suspending particles of the coarse ore in a non-Newtonian fluid and thereby forming a slurry of the coarse ore particles in the fluid. The method also comprises transferring the slurry, for example by pumping the slurry, in a pipeline.

Abstract: A pipeline (500) equipped with at least one pump (400) transports granules dispersed in a carrier fluid in intervals between co-transported pigs in a pipeline. Each pump and each pig is configured to preserve the intervals between pigs, and the orientation of the pigs, during passage of the pigs and granules through each pump. Also, each pig may comprise peripheral apertures providing a leakage of carrier fluid into the intervals downstream of each pig as a means of preserving the dispersion of granules within the pipeline. In the example shown granules are introduced to the pipeline by inlet feed hopper (400), and granules are removed from the pipeline at outlet delivery hopper 650. Hopper 404 introduces pigs at the pipeline inlet and hopper 652 removes pigs at the pipeline outlet: pigs are returned to hopper (404) by the pipeline (500A).

Abstract: The device according to the invention for conveying fluid comprises a conveying chamber, an inlet valve, which is located in the direction of flow, upstream of the conveying chamber, and with an outlet valve, which is located in the direction of flow, downstream of the conveying chamber. Moreover, an injector is provided for, whose suction duct is connected with the conveying chamber. Via an air duct, which is connected to the conveying chamber, exhaust air (AL) can be blown into the conveying chamber.

Abstract: Disclosed herein are Apparatus for the collection of recyclable or waste material. The apparatus comprises a movable element for drawing ambient air into the apparatus through an inlet, in use, thereby creating a suction force that draws the recyclable or waste material into the apparatus through the inlet. The apparatus is arranged such that material drawn into the apparatus impacts the movable element, and the apparatus further comprises a compactor for reducing the volume occupied by the recyclable or waste material.

Abstract: A pneumatic conveyor system includes an air blower for supplying an air source, a central control system, a transmission tube, and a transmission terminal installed at the transmission tube. The transmission terminal includes a tubular groove connected with the transmission tube and having a tubular cavity wall surface, above which is a micro-movement sensitive switch and a photoelectric sensor. The system further includes a transmission carrier having a hollow cylindrical axial extension of the body of the carrier and is placed within the cavity of the tubular groove. One of the transmission ends is closed and the other end has an opening, and the opening is built to be closed by a transmission carrier cover. The cover is disposed a ring capable of triggering the micro-movement sensitive switch.

Abstract: The device according to the invention for conveying fluid comprises a conveying chamber, an inlet valve, which is located in the direction of flow, upstream of the conveying chamber, and with an outlet valve, which is located in the direction of flow, downstream of the conveying chamber. Moreover, an injector is provided for, whose suction duct is connected with the conveying chamber. Via an air duct, which is connected to the conveying chamber, exhaust air (AL) can be blown into the conveying chamber.

Abstract: An improved apparatus for applying loose fill insulation generally includes an insulation feed portion and an insulation gun. The insulation feed portion is driven by a motor which is controlled by a clutch and a clutch control circuit. An insulation gun is mounted to a hose which communicates with the insulation feed portion. A switch mounted on the gun opens and closes the clutch control circuit. When the switch is closed, the clutch is engaged and air blown insulation is supplied to the gun. When the switch is open, the clutch is disengaged and air blown insulation is not supplied to the gun.

Abstract: The present invention relates to a forage harvester blower including a blower rotor having a plurality of generally radially extending rotor paddles which operate in a corresponding substantially cylindrical housing, characterised in that said housing is provided with adjustment mechanism for at least locally adjusting the diameter of the housing. The present invention further relates to a method for optimising the operation of a forage harvester blower and to a method for preventing damage to a forage harvester blower during operation.

Abstract: An interchange apparatus for a pneumatic conveying system including a plurality of branch tubes joined together at an acute angle in an interchange chamber to form a main tube and a flap positioned between at least two branch tubes of the plurality of branch tubes at the end of the interchange chamber, the flap faces the branch tubes and is swivelable between a first position and a second position. The flap is held in each position by a holding device such that when the flap is positioned in the first position there is a connection between a first branch tube and the main tube, and when the flap is positioned in a second position there is a connection between a second branch tube and the main tube. In one embodiment the flap is switched from a first position to a second position by the passage of the cylindrical objects through the interchanges.

Abstract: An apparatus for transporting particulate material includes a housing having an inlet for receiving particulate material and an outlet through which particulate material is discharged in a moving dynamic mass. A rotor is supported for rotation within the housing, adjacent a stationary glide surface. The rotor has a plurality of disks spaced apart by hub sections and defining a plurality of transport channels between the disks, adjacent the glide surface. Each transport channel extends between the inlet and the outlet. The rotor is rotated while particulate material is fed into the housing inlet. The particulate material is received within the transport channels and, by the action of the rotating disks and the stationary glide surface, the particulate material in each of the transport channels interlocks with the disk walls and bridges across transport channel. The material is transported by the motion of the disk walls and, at the same time, forms a moving dynamic mass.

Abstract: A particulate material accelerator conveyor includes a housing having a wall with openings therein for an air inlet, a particular material inlet, and a mixture outlet; a feed auger rotatably mounted in the housing and in fluid communication with the particulate material inlet so as to convey particulate material from the inlet into an acceleration chamber within the housing; and a fan rotatably mounted in the housing in fluid communication with the air inlet and the acceleration chamber. The fan includes a plurality of fan blades for accelerating air from the air inlet toward the housing wall and thereby providing a flow of accelerated air along the inside of the wall and toward the particulate material and move therewith toward the mixture outlet. The positioning of the fan in the housing and the resulting air flow therefrom prevents particulate material from contacting the fan blades and thereby damaging the particulate material.

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 "soft excavator" utilizes supersonic jets of air to loosen and remove soil and the like without damage to utility lines and other "hard" buried objects. A pair of digger nozzles, each mounted at an angle to the axis of the tubular support shaft which in turn is mounted for planetary motion on a drivehead rotating about a tubular member, trace a epitrochoidal path around the inlet to the tubular member which advances with each rotation of the drivehead to uniformly loosen soil across the cutting face and to gather the lossened soil toward the tubular member. Injector nozzles direct supersonic jets of air into the tubular member in the direction of the discharge end to generate a secondary air flow which sucks lossened soil aerated by the digger nozzles into the inlet end of the tubular member. The entrained soil is decelerated by a diffuser and flexible bag at the discharge end of the tubular member and deposited in a pile.

Abstract: A blower for conveying material includes a housing and a spout. The housing has a front wall, a rear wall and an arcuate side wall extending between the front and rear walls. A plurality of arms with paddles mounted thereon are rotatable within the housing to discharge material through the spout. Springs are provided to urge a portion of the housing side wall into a normal position while permitting this side wall portion to be flexed outwardly if a foreign object such as a rock impacts against the inside of the housing side wall with enough force to overcome the springs. Permanent deformation to the housing is thus prevented by the springs.

Abstract: A process and apparatus of preventing the plugging of the discharge and/or suction line of an internal recycle pump utilized in an expanded bed reactor of the type having a partition transversely extending through the lower portion thereof and defining a plurality of substantially regularly and uniformly disposed perforations and communicating with a reaction zone above the partition and plenum chamber therebelow. The reaction zone contains a mass of particulate catalyst contact matter supported by the partition and placed in randon motion above the partition by a pressurized mixture of a liquid carbon containing material and a hydrogen rich gas flow passing through the perforations from the plenum chamber and by the internal recycle pump having a pump suction line generally concentrically disposed with respect to the reactor and extending through the partition into the reaction zone.

Abstract: Apparatus for not only removing fluids from a slurry system but also for injecting fluid into the slurry system so that the concentration can be positively maintained. The apparatus provides for a uniform dilution of slurry so that the fluids will not segregate the slurry causing portions to have low concentration when fluids are added or portions which have high concentration when fluids are removed.

Abstract: Apparatus for pumping fluent solid material comprising first and second expansible chamber pumps and means interconnecting the pumps. The first expansible chamber pump has an inlet with a check valve for intake of material from a supply thereof on an intake stroke of the first pump and an outlet with a check valve for discharge of the material on a discharge stroke of the first pump. The apparatus also has a line for delivery of material from the outlet of the first pump. The second expansible chamber pump has an inlet with a check valve for intake of gas on an intake stroke of the second pump and an outlet with a check valve for discharge of gas on a discharge stroke of the second pump. Means interconnect the pumps for operation of the second pump through a discharge stroke on an intake stroke of the first pump and through an intake stroke on a discharge stroke of the first pump.

Abstract: The instant disclosure relates to the feeding of pulverized hydrocarbonaceous solids, such as coal, coke, tar sands, oil shale, etc., into a high pressure reactor for retorting or gasification of the solids. The pulverized hydrocarbonaceous solids are mixed with a motive fluid and pressurized in a jet ejector. The pulverized solid/motive fluid mixture is then separated by a cyclone separator. The operation may be repeated in successive stages to achieve the desired pressures. The pressurized solids from the cyclone separator are introduced into the reactor, and motive fluid from the separator is recirculated to the jet ejector.

Abstract: An apparatus for increasing the solids to fluids ratio of a slurry is constructed from a chamber which has a substantially circular cross section with a high pressure slurry inlet mounted through said chamber wall with the axis of the inlet normal to a diameter of the chamber. A high pressure slurry outlet is mounted through the chamber wall with the axis normal to a chamber cross section. A low pressure outlet is mounted through the chamber wall with its axis substantially aligned with the axis of the circular cross section so that a certain portion of the fluid entering the high pressure inlet will exit the low pressure outlet. The amount is controlled by a valve inserted in the low pressure outlet. The fluid is preferably of the type which operated by reducing its diameter. Anticavitation may be provided for the chamber by passing air from the outside of the chamber into the chamber when the pressure in the chamber becomes less than the air pressure outside the chamber.

Abstract: A dredging apparatus has a chamber with a substantially circular cross section. A first inlet and outlet is formed through the chamber with an axis of the inlet and outlet normal to a diameter of the chamber. A suction inlet is formed through the axis of the chamber along the axis of the vortex formed as the fluids leave the inlet and pass to a second outlet formed substantially coaxially with the vortex. Apparatus is provided for supporting the dredging apparatus in a position so that the suction inlet can remove material desired to be dredged.

Abstract: An apparatus for and method of pumping hot, erosive slurry of coal solids in a coal derived, water immiscible liquid to higher pressure involves the use of a motive fluid which is miscible with the liquid of the slurry. The apparatus includes a pump 12, a remote check valve 14 and a chamber 16 between and in fluid communication with the pump 12 and check valve 14 through conduits 18,20. Pump 12 exerts pressure on the motive fluid and thereby on the slurry through a concentration gradient of coal solids within chamber 16 to alternately discharge slurry under pressure from the outlet port of check valve 14 and draw slurry in through the inlet port of check valve 14.

Abstract: The invention relates to a device for the preparation and injection of sealing cement for bolts in propping gallery roofs and walls in mines, quarries or tunnels. The device of the invention comprises a flexible pouch contained in a rigid housing which is connected to a liquid supply system and an injection nozzle that is double-walled along its entire length, the inner nozzle receiving pulverulent cement from the flexible pouch and the outer ring of the nozzle being supplied with water. Thus, the cement and water are separately introduced into a bore for the bolts and the mixing process takes place in the bore.