Abstract: A metering device for metering granular product into a pressurized conduit of a pneumatic conveyor has a tubular housing oriented vertically. Intake and discharge openings are defined in opposite housing walls with blank walls between the openings. Upper and lower hubs are rotatably mounted and sealed in ends of the housing above and below the intake and discharge openings. An upper surface of the lower hub slopes downward toward an outer edge thereof. The upper and lower hubs are fastened to a drive shaft extending along the housing axis and a meter drive rotates the drive shaft at a selected rotational speed. Each of a plurality of flexible blades extends between the upper and lower hubs and has an outer edge wiping the inner wall surface of the housing such that a sealed blade chamber is formed between adjacent blades and one of the blank walls as the hubs rotate.

Abstract: A heat dissipation module includes a fan and a thermal fin portion. The fan includes a fan body, a plurality of blade units and a plurality of blade extensions. The blade units are connected to the fan body. The blade extensions protrude from the blade units, respectively. A first surface is formed on a side of each of the blade extensions. A distance between the first surface and an axis of the fan body is increasing along an inflow direction. The thermal fin portion includes a plurality of fin units and a plurality of fin extensions respectively protruding from the fin units. A second surface is formed on a side facing the fan extension of each of the fin extension. An identical gap is formed between at least one portion of the first surface and at least one portion of the second surface.

Abstract: A powder fluidizing system, comprising a pressure vessel, a powder container removably mounted within the pressure vessel, and comprising a bottom sieve; a vibrator generating vibrations and transmitting the vibrations to the powder container above the sieve; and a guide directly secured under said powder container to the bottom sieve; wherein a bulk powder fed within the powder container is vibrated within the powder container and flows through the sieve to the guide, and a powder fluidizing method, comprising feeding a bulk powder within a powder reservoir maintained under pressure; vibrating the powder reservoir; and passing the powder through a sieve positioned at the bottom of the powder reservoir.

Abstract: In order to increase the fitness for use of a closing device (1) for continuously and gravimetrically dosing pourable material, particularly rough fuels, a flow of material is conveyed from a charging opening (5) to an emptying opening (7) in a housing (4) with a rotor (3), which is driven about a vertical rotation axis, while determining the instantaneous load over a measuring section, and with a force measuring device (10), which detects the instantaneous load of the flow of material guided via the rotor (3) and which is connected to the housing (4) mounted on a pivot axis (8). According to the invention, a vibrating funnel (50) with a vibration generator (52) is provided above the charging opening (5) of the rotor (3).

Abstract: An apparatus for installation of a material having discrete elements. The apparatus includes a supply material having discrete elements and a transporter system downstream of the supply material having discrete elements. In the preferred embodiment, the transporter system includes: (i) a high speed, inline blower (ii) a material agitator upstream of the inline blower and (iii) a planetary transmission connected to the shaft of the blower for providing a lower speed mechanical output to the material agitator. The material agitator may include a plurality of concentric rings with serrations on the upper surface of each ring. In the preferred embodiment, the apparatus further includes an applicator assembly connected downstream to the transporter system.

Abstract: A feeder apparatus supplies a powder feedstock to a high or low pressure processing operation. The apparatus includes a metering plate defining an annular channel having a channel width. A measuring mechanism dispenses a measured volume of the feedstock into the annular channel. The measuring mechanism includes a pay-out device defining an outlet significantly smaller than the channel width. The measuring mechanism further includes a maximum fill level defining a maximum pressure head in the feedstock less than a retaining pressure defined by the internal friction of the feedstock. The restraining pressure prevents the feedstock from spreading outwardly in the annular channel and contacting sidewalls of the annular channel under the pressure head of the feedstock. The apparatus further includes a pick-up device for removing the feedstock from the annular channel. The pick-up device includes an inlet having a rectangular shape extending across the annular channel.

Abstract: An apparatus for installation of a material having discrete elements. The apparatus includes: (a) a supply material having discrete elements; and (b) a transporter system downstream of the supply material having discrete elements. In the preferred embodiment, the transporter system includes (i) a vertical feed, inline blower and (ii) a material agitator upstream of the vertical feed, inline blower. The apparatus may further include an applicator assembly connected downstream to the transporter system. In the preferred embodiment, the material is installed without the use of water.

Abstract: An apparatus for installation of a material having discrete elements. The apparatus includes a supply material having discrete elements and a transporter system downstream of the supply material having discrete elements. In embodiments, the transporter system includes: a high speed, inline blower; a material agitator upstream of the inline blower, the material agitator including a plurality of concentric rings with serrations on the upper surface of each arm, wherein at least one outer ring includes saw tooth serrations on the upper surface of the ring; a transmission connected to the shaft of the blower for providing a lower speed mechanical output to the material agitator; and an orifice substantially adjacent to the inlet of the blower for receiving the supply material having discrete elements. In embodiments, the apparatus further includes an applicator assembly connected downstream to the transporter system.

Abstract: An apparatus for installation of a material having discrete elements. The apparatus includes a supply material having discrete elements and a transporter system downstream of the supply material having discrete elements. In the preferred embodiment, the transporter system includes: (i) a high speed, inline blower (ii) a material agitator upstream of the inline blower and (iii) a planetary transmission connected to the shaft of the blower for providing a lower speed mechanical output to the material agitator. The material agitator may include a plurality of concentric rings with serrations on the upper surface of each ring. In the preferred embodiment, the apparatus further includes an applicator assembly connected downstream to the transporter system.

Abstract: Disclosed is a device for the continuous gravimetric metering and pneumatic conveying of pourable material which is conveyed across a given distance by a metering rotor (1) which is arranged in a pressure-proof manner in a housing (2) and is provided with conveying pockets (1a). Said housing (2) comprises a charging station and a discharging station for the pourable material, which are connected to the inlet/outlet (4, 5) of a pneumatic conveyor system. The housing (2) is connected to a force metering device which detects the momentary load generated on the metering rotor (1) by the conveyed material. The inlet and outlet of the pneumatic conveyor system are connected to the bottom of the housing (2). In order to build the inventive device in a compact manner while reducing the assembly requirements and improving flow guidance, the flow from the inlet (4) to the outlet (5) is deflected within the upper area of the housing (2).

Abstract: A portable unit for pneumatically blowing landscaping and/or building materials, such as bark, mulch, fertilizer, compost, wood chips, grass clippings, leaves, gravel/stone, straw, hay, sawdust and combinations thereof is provided. The unit is transportable by: a car trailer, truck trailer, garden tractor trailer; on stakes of a stake bed truck; by a three point hitch; by a forklift and any combination thereof. The unit includes a hopper having an integral airlock feeder in one preferred embodiment. The unit either includes an on-board power supply device, such as an engine, or provides connections for receiving power remotely.

Abstract: An apparatus, which is intended for metering bulk materials, has a rotatable cell wheel (9) and a stirrer (2), arranged above the latter, and operates reliably even in the case of very sluggishly flowing bulk materials, in particular with small metering capacities, i.e., with the cell wheel (9) rotating slowly. For this purpose, the invention provides two different, isolated drives for the stirrer (2) and the cell wheel (9).

Abstract: An enclosed-rotor vertical-shaft rotary valve is used as an airlock to inject abrasive, fine, or sticky solids into pressurized air. The invention eliminates the effect of thermal expansion on the gap between the rotor and casing, thereby making it possible to obtain much smaller gaps than before. The smallness of the gaps makes it feasible to pump clean air into the gaps without interfering with the performance of the airlock. The clean air keeps dust-laden air from entering the gaps, which eliminates the erosion that has limited the usefulness of conventional rotary valves when handling abrasive powders. By the use of two vents and a dual-pressure purge-air system, the invention also greatly reduces the blowby of air into the entrance of the airlock, which has limited the usefulness of conventional rotary valves when handling very-small-particle powders. These benefits also accrue to the injection of sticky solids into pressurized fluids.

Abstract: A spray machine having a driven rotor unit which carries, at its periphery, a plurality of bushings that are open at both sides. The bushings are arranged such that their axes point in a direction with at least one directional component parallel to an axis of the rotor unit. The bushings include a filling opening (6) at a filling arrangement (20), a pressurized air inlet opening (5), and an ejection opening (3) which is located opposite to the pressurized air inlet opening (5) relative to a direction of the bushing axes. Each of the openings are arranged so that, when the rotor unit rotates, the openings of the bushings pass over the openings. Sealing plate arrangements are provided so that the surface pressure between the sealing plate arrangements and the rotor unit in an area including the filling opening is lower than the surface pressure of the sealing plate arrangements to the rotor unit in an area including the pressurized air inlet opening and the ejection opening.

Abstract: A rotary valve including a rotor assembly rotatable by a driver to cause material to be transferred from an inlet side to an outlet side of the rotary valve. The rotor assembly includes a rotor coupled to a shaft which rotates about an axis when driven by the driver. The rotor includes an outer tube, an inner tube, and a plurality of radial blades. The rotary valve includes a casing assembly for supporting the rotor assembly that includes an inlet for allowing the material to enter pockets of the rotor assembly and an outlet for allowing the material to exit the rotor assembly. The casing assembly includes an upper cap disposed at a top of the casing assembly that contains an opening for allowing the material to enter the pockets of the rotor assembly, a shaft opening, and a wiper assembly that removes material from the tops of the blades as the blades pass by the inlet opening.

Abstract: The thermal insulation blower of the present invention is built around a vertically oriented air lock system. The insulation blower is capable of being configured for high delivery rates suitable for open area blowing and is capable of being reconfigured for lower delivery rates as a through-the-blower system for closed area blowing operations. The insulation blower includes a metering feeder assembly which can be adjusted to control the rate at which a bale of insulation is ripped and fed into the air lock system. The thermal insulation blower of the present invention also includes a bypass system around the air lock which serves to automatically clear impending plugs of insulation material in the delivery hose.

Abstract: An apparatus for the entraining of powdery materials in a gas stream consists essentially of two sets of rotatable horizontal vanes disposed vertically of each other and separated by a horizontal partition. Powdery material arriving at the upper set of vanes is pushed around to a communication conduit in the partition through which it falls to the lower set of vanes. These move the material around to an exit conduit whose cross section does not overlap with that of the communication conduit when the apparatus is viewed in plan. The material falls into the exit conduit to be entrained in a gas stream. Preferably the gas stream enters the apparatus adjacent to the exit conduit.

Abstract: This invention relates to an apparatus and process for feeding powder or dry solids catalyst into a flowing liquid stream. More particularly, the invention includes an apparatus which includes a novel purging device and means for isolating a metering means from a liquid stream, and process for injecting finely divided flowable powder or catalyst into a flowing liquid stream, which in turn is fed into a reactor utilized for the production of polypropylene or polyolefins.

Abstract: A precision powder hopper comprises a canister for storing particulate material and a rotatable carrier wheel that accurately meters small amounts of the material to a powder out port. The carrier wheel has slots therethourgh that receive definite quantities of material, which is tamped into the carrier wheel slots by a tamper assembly. The tamper assembly includes a deflectable leaf spring that mounts to the same shaft that rotates the powder carrier wheel. A cam and spoke arrangement cause the leaf spring to deflect cyclically in response to rotation of the powder carrier wheel. A cupped spring washer cooperates with the leaf spring to absorb some of the deflection thereof, thereby decreasing the bending stress in the leaf spring and increasing its service life. Powder in the carrier wheel slots is wiped by a novel seal that has at least one circular line contact with the carrier wheel.

Abstract: A shotcrete gun having a rotatable multichamber rotor, with a top feed hopper for receiving a dry concrete mixture in a chamber, and a bottom outlet pipe for discharging the dry concrete mixture from the chamber. The outlet pipe having a compressed air connector for connection to a compressed air source. The upper surface of the drum rotor adjoins a gasket having one or more openings fixed to a clamping plate. The lower surface of the drum rotor adjoins a gasket which is fixed to a base plate. The hopper and the outlet pipe being spaced such that a chamber which communicates directly with the hopper can be moved so that it no longer communicates with the hopper but communicates with the outlet pipe. The clamping plate has a compressed air connector for blowing the dry mixture out into the outlet pipe.

Abstract: A shotcrete gun having a rotatable multichamber rotor, with a top feed hopper for receiving a dry concrete mixture in a chamber, and a bottom outlet pipe for discharging the dry concret mixture from the chamber. The outlet pipe having a compressed air connector for connection to a compressed air source. The upper surface of the drum rotor adjoins a gasket having one or more openings fixed to a clamping plate. The lower surface of the drum rotor adjoins a gasket which is fixed to a base plate. The hopper and the outlet pipe being spaced such that a chamber which communicates directly with the hopper can be moved so that it no longer communicates with the hopper but communicates with the outlet pipe. The clamping plate has a compressed air connector for blowing the dry mixture out into the outlet pipe, and at least three pressure cylinders in order to press the gasket against the drum rotor. Means are provided for maintaining the pressure in the cylinders proportional to the pressure in the outlet pipe.

Abstract: An apparatus for continuously conveying a powder in a gas flow has a configuration of the bottom end of the supply reservoir in the form of a funnel-shaped guide surface converging towards a pointed end. This surface is intersected by a vertically extending cylindrical well defining a bottom area where the powder is received in perforations formed in a rotary disc for discharge from the well. The wall of the well is preferably provided with a fluidizing gas inlet.

Abstract: A powder feeder for dispensing controlled amounts of powder into a gas stream in a supersonic plasma spraying environment utilizes a stir spindle and a feed impeller mounted on a rotatable first drive shaft at the bottom of a powder cannister to agitate and mix the powder and then dispense the powder in controlled amounts from an aperture in the bottom of the cannister as the first drive shaft is driven by a motor. The controlled amounts of powder dispensed through the aperture in the bottom of the cannister are directed by a conduit through an aperture in the upper end of a housing and into a plurality of slots circumferentially formed about the outer periphery of a feedwheel mounted within the housing to be rotatably driven by a second drive shaft which is also coupled to be driven by the motor.

Abstract: A device for metering bulk materials with a vertical axis having a rotor featuring radially extending paddles about the vertical axis, and a cover plate, constructed to prevent especially coarse particle materials from being scraped or squashed between the rotor and the cover plate. For this purpose a ring segment type opening is provided in the cover plate, and a recess is provided in the under surface of the cover adjacent the opening to provide a space for producing material slopes underneath, whereby the limiting edge between the inlet opening of the cover plate and the rotor paddles forms an acute angle.

Abstract: An apparatus for the dosed incorporated of a dustlike substance into a carrier gas stream is described; said apparatus operates on the basis of a perforated disc which rotates in the dust, the passage holes of said disc are filled with the dust and are blown out in a blowing zone. Since a predetermined blowing pressure is maintained and owing to a suitable dimensioning and arrangement of the passage holes, a remarkable increase in the throughput of dust is achieved, compared with the prior known matter.

Abstract: A method for operating an apparatus for continuous gravimetric metering and feeding of pourable material conveyed by a conveyer through a metering path, the conveyer including a rotor provided with conveyer pockets, having an essentially vertical axis and being arranged within a housing in a tightly sealed manner, the housing being provided with a charging station and a discharging station the latter including ports for connecting a pneumatic feeding system, wherein a gas is supplied to spaces within the housing and the rotor outside the metering path.

Abstract: A cylindrical housing is arranged with its central axis in a vertical direction and has a feed opening for the supply of loose material at its upper end, a wall closing at its bottom end, and a discharge outlet extending radially through its perimetrical wall. A bucket wheel is located in the housing rotatable about the vertical axis. An inlet duct for the introduction of clearing air extends axially through the bottom end of its housing below said discharge outlet, and a horizontally displaced baffle plate is located above said discharge outlet.

Abstract: A rotary feeder for simultaneous screening and discharging of material from the bottom part of a fluidized bed reactor. The rotary feeder is provided with a rotor having blades, between which pockets are formed. In the rotary feeder there is disposed an air inlet and an air outlet for accomplishing a flow of air through the pocket after it has moved over the inlet of the supply material.

Abstract: A solid fuel particle and air control device for use with combustion systems for a gas turbine engine and the like is disclosed. The device has a first housing with an inlet passage for receiving solid fuel particles. The first housing is mounted on a second housing with a blind cavity. A first passage extends through the second housing so as to intersect the blind cavity to permit flow communication therebetween. Solid fuel particles from the inlet passage of the first housing are metered and transfered to the blind cavity. A fluid pressure source is injected into the first passage in the secondary housing so as to entrain the solid fuel particles in the air as to form a uniform air entrained mixture. The air entrained mixture is then ejected out of the first passage in the second housing to a duct which communicates with the combustion system of the gas turbine engine where the air entrained solid fuel particle mixture is burned.