Abstract: A powder conveying device for the conveying of coating powder to a powder applicator includes a working container that is designed and operable appropriately such that it can be pressurized. The working container further includes a powder inlet and a powder outlet, whereby the powder outlet is connected to a powder outlet valve. In addition, a powder conduit is provided that is connected, on the inlet side, to the powder outlet valve and includes, on the inlet side, an inlet for transport air. The powder conduit can be connected, on the outlet side, to a powder applicator. Moreover, a control is provided that is designed and operable appropriately such that it controls the amount of powder to be conveyed by repeatedly opening and closing the powder outlet valve.

Abstract: A particulate material delivery system for an agricultural implement including, an inductor box configured to receive particulate material from a tank, the inductor box including, an inductor segment comprising a particulate material supply chamber configured to guide the particulate material toward a fluidization chamber, and an air supply chamber configured to receive airflow from an airflow supply, wherein the inductor box is configured to direct the airflow from the air supply chamber to the particulate material supply chamber through a first airflow path and through a second airflow path remote from the first air path.

Abstract: A device and method for dispensing catalyst pellets from a hopper to a chemical reactor. The hopper receives and holds the catalyst pellets at an elevation above the elevation of the chemical reactor. The flow of the catalyst pellets is controlled so they flow into and through a conduit in a widely spaced-apart arrangement to the chemical reactor. This controlled, spaced-apart flow is created by providing a sieve between a hopper and the conduit having openings small enough that the catalyst pellets form bridges above the openings, and then repeatedly breaking up the bridges in a controlled manner.

Abstract: A pneumatic conveying process transports plastic pellets from a manufacturing source to a bulk silo for storage before being delivered to the ultimate production utilization of the plastic pellets. Multiple types or multiple sources of plastic pellets can be fed through a common pneumatic conveying conduit to respective bulk silos for temporary storage with diverter valves being utilized to direct product into and out of the common conveying conduit. Expanded elbow fittings are deployed at each directional change in the conveying lines to eliminate the creation of streamers at conduit bends. The plastic pellets are conveyed at a medium velocity between dense and dilute phases to provide a gentle conveying operation. A closed loop air supply system is used for dedusting devices providing a final removal of dust and debris from the stored product before being delivered to the ultimate utilization facility.

Abstract: Device for unloading a powder from standardized bulk containers equipped with an inner liner, the device comprising a collection unit suitable for being tightly fixed on the container and suitable for being in fluid communication with the interior of the liner; a shearing unit, in fluid communication with the collection unit, comprising shearing means for shearing the powder; and a separate delivering unit, in down stream fluid communication with the shearing unit, the delivering unit comprising an output suitable for connecting pneumatic unloading means.

Abstract: The present description relates to an apparatus and a process for vacuum-assisted pneumatic conveying of powder products, granules or the like. The apparatus comprises a container, a filtering unit (4) in the container and a rotary head with a nozzle (108) for washing the external wall of the filter unit (4). The apparatus provides a more immediate and efficient internal cleaning, allowing sterilization thus making the apparatus suitable for use also in the pharmaceutical sector.

Abstract: Method in a pneumatic material conveying system, such as in a waste conveying system, which conveying system comprises at least one input point (1) of material, more particularly of waste material, a material conveying pipe (2, 3), which can be connected to an input point (1), and a separating device (4), in which the material to be transferred is separated from the conveying air, and also means (5) for achieving a pressure difference in the conveying pipe (2, 3) at least during transfer of material. The actuator (12) of the valve means (11, 300, 400) arranged between an input point (1) and the conveying piping (2, 3) is driven and/or controlled with water to be conducted from the water mains network (22).

Abstract: Process and a device (2) for the pneumatic conveyance of powdered material (4), in which a cylindrical chamber (10, 12), which can be connected with a reservoir (6) by a sealable inlet (14, 16) and with a delivery line (28) by a sealable outlet (18, 20), is alternately filled with material from the reservoir (6) and emptied of this material by applying a negative pressure to the chamber with its outlet (18, 20) closed and its inlet (14, 16) open through a bordering wall formed by a gas-permeable filter element (50) to draw material into the chamber (10, 12) from the reservoir (6), and by then admitting a gas under pressure into the chamber (10, 12) with its inlet (14, 16) closed and its outlet (18, 20) open to force the material previously drawn into the chamber (10, 12) out of the chamber and into the delivery line (28).

Abstract: The present description relates to an apparatus and a process for vacuum-assisted pneumatic conveying of powder products, granules or the like. The apparatus comprises a container, a filtering unit (4) in the container and a rotary head with a nozzle (108) for washing the external wall of the filter unit (4). The apparatus provides a more immediate and efficient internal cleaning, allowing sterilization thus making the apparatus suitable for use also in the pharmaceutical sector.

Abstract: A pneumatic conveying process transports plastic pellets from a manufacturing source to a bulk silo for storage before being delivered to the ultimate production utilization of the plastic pellets. Multiple types or multiple sources of plastic pellets can be fed through a common pneumatic conveying conduit to respective bulk silos for temporary storage with diverter valves being utilized to direct product into and out of the common conveying conduit. Expanded elbow fittings are deployed at each directional change in the conveying lines to eliminate the creation of streamers at conduit bends. The plastic pellets are conveyed at a medium velocity between dense and dilute phases to provide a gentle conveying operation. A closed loop air supply system is used for dedusting devices providing a final removal of dust and debris from the stored product before being delivered to the ultimate utilization facility.

Abstract: A filter support casing and filter provides powder into a Bernoulli flow system. The system has an upper end and a lower end, the upper end having an opening therein. The filter support casing extends downward from the upper end. There is a filter supported within the casing. The filter support casing and the filter define an internal volume within both the filter support casing and the filter. The volume is exposed to the opening in the upper end and as later explained is flow connected into a gas stream that will carry particles and spray particles. The casing has at least two concentric elements, a first inner elements and a second outer element, that rotate with respect to each other and which slide with respect to each other. The two elements rotate about their concentric positions and slide along their lengths. The first inner element is contiguous (adjacent and/or touch and adjacent) with the filter. The first inner element encloses the filter with arms (fingers, extensions, posts, etc.

Abstract: Powder feed device of a powder spraycoating apparatus. A pump is configured in the powder path from a sieve to an intermediate receptacle.

Abstract: A bulk bag unloading system generally consisting of a support means; a hopper mounted on the support means; filtering means mounted on the support means at a level above the hopper; means intercommunicating the interior of the hopper and an inlet of the filtering means; a means for suspending the bulk bag on the support means wherein a spout of the bulk bag communicates with an inlet of the hopper.

Abstract: Blending methods for adding and uniformly mixing a small fraction of relatively small particles (additives) to a bulk particulate powder of larger size than the additives. In particular, the present invention provides blending methods for adding and uniformly mixing a small percentage of flow/fluidization additives into fine powders, especially fine paint powders. The fine powder and additives are first pre-mixed for macro-scale homogeneity and then further mixed at a micro-scale (such as with a screen mixing process) for micro-scale homogeneity. With these methods, optimum dispersions and maximum functionalities of additives can be obtained and the disadvantages caused by severe agglomerates of additives can be avoided.

Abstract: A method, apparatus and system for conveying drill cuttings employing a compressed conveyance gas to induce movement of the non-free flowing drill cuttings in a vessel without employing a non-pneumatic means for causing movement of the drill cuttings in the vessel.

Abstract: A method for conveying a non-free flowing paste where the non-free flowing paste is loaded into a vessel or container having a conical lower portion designed to provide mass flow of the paste. A gas is applied to the vessel to cause the paste to flow out. The paste may be transported to another vessel having a mass flow conical lower portion where it may be stored. The paste may then be discharged using a gas to transport the paste to a third vessel having a mass flow conical lower portion where the loaded vessel itself may be transported, such as by boat, to another destination, such as the shore. The third vessel may be disposed vertically or horizontally on the boat. Thereafter, the paste may be transported to a fourth vessel for further transport or the third vessel may be moved from the boat to a truck for further transport. A frame, the size of a shipping container may enclose a vessel or the frame enclosed vessel may be coupled to other frame enclosed vessels.

Abstract: A method for conveying a non-free flowing paste where the non-free flowing paste is loaded into a vessel or container having a conical lower portion designed to provide mass flow of the paste. A gas is applied to the vessel to cause the paste to flow out. The paste may be transported to another vessel having a mass flow conical lower portion where it may be stored. The paste may then be discharged using a gas to transport the paste to a third vessel having a mass flow conical lower portion where the loaded vessel itself may be transported, such as by boat, to another destination, such as the shore. The third vessel may be disposed vertically or horizontally on the boat. Thereafter, the paste may be transported to a fourth vessel for further transport or the third vessel may be moved from the boat to a truck for further transport. A frame, the size of a shipping container may enclose a vessel or the frame enclosed vessel may be coupled to other frame enclosed vessels.

Abstract: A pre-screening element for use with pneumatic discharge systems for transport of powdered material has a housing having an inlet and an outlet, a first vane array, having a plurality of strip-shaped first vanes arranged inside the housing and spaced apart with respect to a longitudinal axis of the housing, each individual vane of the plurality of first vanes being substantially parallel to other vanes of the first vane array and having a long edge facing the inlet, and a second vane array, having a plurality of strip-shaped second vanes arranged inside the housing each individual vane of the plurality of second vanes being substantially parallel to other vanes of the second vane array and having a long edge facing the inlet, a longitudinal axis of the first vanes being arranged at an angle to a longitudinal axis of the second vanes.

Abstract: An air track included a first body having a concave top surface with a plurality of air outlets or a flat surface with a notch and a plurality of air outlets. The body includes at least one air filter that runs along the length of at least a portion of the body. The air filter dividing the body into a first plenum and a second plenum. The air track also includes a hood covering at least a portion of the top surface. The air track further includes a stopper assembly that arrests the motion of a disk. The stopper assembly includes a disk detector that senses the presence of the disk on the air track.

Abstract: A pre-screening element for use with pneumatic discharge systems for transport of powdered material has a housing having an inlet and an outlet, a first vane array, having a plurality of strip-shaped first vanes arranged inside the housing and spaced apart with respect to a longitudinal axis of the housing, each individual vane of the plurality of first vanes being substantially parallel to other vanes of the first vane array and having a long edge facing the inlet, and a second vane array, having a plurality of strip-shaped second vanes arranged inside the housing and spaced apart with respect to a longitudinal axis of the housing, each individual vane of the plurality of second vanes being substantially parallel to other vanes of the second vane array and having a long edge facing the inlet, a longitudinal axis of the first vanes being arranged at an angle to a longitudinal axis of the second vanes.

Abstract: A device for dispersing and metering fibers which includes a frame, a hopper mounted on the frame and having an inlet opening for receiving fibers therein. A screen is provided through which the fibers from the inlet opening must pass for separating any existing fiber clumps into a size not exceeding a size predetermined by the screen. A primary fluffing device is provided for creating a uniform dispersion of fibers within the hopper. An outlet opening is provided for allowing the fibers to exit the hopper. A controllable metering device is provided in the outlet opening for transporting a metered quantity of fibers out of the hopper through the outlet opening. A housing structure is connected to an outlet end of the metering device, the housing structure including an air inlet opening into the housing and a secondary fluffing device inside of the housing for further reducing in size any fiber clumps to separated discreet fibers.

Abstract: A method of feeding out dust in a dust discharge system in a power plant including feeding out dust pneumatically from a separator via a suction nozzle by using transport gas with a pressure exceeding atmospheric pressure, supplying diluting gas into the transport gas at a location close to the suction nozzle of the dust discharge system, and selecting the flow of diluting gas into the transport gas so that part of the pressure drop (.DELTA.Pgas) of the transport gas across the dust discharge system (.DELTA.p) is maintained.

Abstract: A device for dispersing and metering fibers which includes a frame, and a hopper mounted on the frame and having an inlet opening for receiving fibers therein. A screen is provided through which the fibers from the inlet opening must pass for separating any existing fiber clumps into a size not exceeding a size predetermined by the screen. A primary fluffing device is provided for creating a uniform dispersion of fibers within the hopper. An outlet opening is provided for allowing the fibers to exit the hopper. A controllable metering device is provided in the outlet opening for transporting a metered quantity of fibers out of the hopper through the outlet opening. A housing structure is connected to an outlet end of the metering device, the housing structure including an air inlet opening into the housing and a secondary fluffing device inside of the housing for further reducing in size any fiber clumps to separated discreet fibers.

Abstract: An apparatus for conveying powder. The apparatus includes a hopper for receiving powder, a mechanical conveyor, a sifter and a ribbon blender. The mechanical conveyor delivers powder from the hopper to the sifter. The ribbon blender, which is situated below the sifter for receiving powder from the sifter, has two or more outlets for discharging powder.

Abstract: The present invention relates to an adapter which is useful to receive dry bulk chemicals with a minimum of dust escaping to the environment and which screens the free flowing dry bulk chemicals.

Abstract: A fiber spray system for depositing fibers onto a substrate or article comprises a vibrating feeder bowl having an opening in its sidewall covered by a grid or screen through which fibers loaded into the feeder bowl are discharged therefrom into the fiber collector. A delivery hose is connected between the fiber collector and a pump which is operative to create a negative pressure within the fiber collector to draw fibers through the grid of the feeder bowl, out of the feeder bowl into the fiber collector and to entrain the collected fibers within a stream of air. The air-entrained fibers are drawn through the delivery hose to the pump, and in the course of passage therethrough the velocity of the fibers is reduced so that they collect or accumulate within an area in the delivery hose upstream from the pump. The pump uniformly withdraws fibers from the area where they accumulate and discharges the fibers directly into a spray gun connected to the pump for deposition onto a substrate.

Abstract: For decanting toner from a supply bottle into the toner reservoir, an under-pressure is generated in the toner reservoir with the assistance of an exhauster fan. The toner reservoir is connected via a flexible hose to a suction nozzle that can be inserted into the transport container. This suction nozzle is composed of an inside tube that is in communication with the flexible line and of an outside tube that completely surrounds the inside tube at a distance therefrom, this outside tube being open to the environment in its upper part and comprising toner entry openings in its lower part. The air flowing through draws the toner through the toner entry openings. The toner reservoir itself is divided into a settling space and into a suction space, these spaces being separated by a filter. The filter arcs under the influence of the flowing air stream. When it arcs back, the toner adhering thereto breaks off and falls into the settling space.

Abstract: A system for feeding powder into high backpressure includes a carrier gas conduit with an orifice for entraining powder from a hopper, and a line for discharging feed gas at regulated pressure into the hopper to effect entrainment. A gas bleeder line has an outlet connection to the output carrier conduit, with a line pressure representative of carrier pressure. A differential pressure regulator equal to carrier pressure plus an increment. A regulated relief valve in the input carrier gas conduit provides a bleed gas supply to the bleeder line at a pressure equal to carrier pressure plus an increment. Pinch valves in the carrier conduit allow or prevent powder entrainment; alternatively, a rotatable sleeve is on the carrier conduit with a side opening alignable with the entrainment orifice. A carrier bypass conduit may be connected between the input conduit and the output conduit and hopper pressurization line may be connected between the output conduit and the hopper.

Abstract: An apparatus for handling communited materials including a material hopper defining a zone into which the material may be deposited, a filter device having an inlet communicating with the material depositing zone, a pump defining a chamber for receiving material from the hopper, a valve for controlling the supply of material from the hopper to the pump chamber, a device for injecting fluid under pressure into the pump chamber to flush material disposed therein through a pump outlet, a valve for controlling the supply of fluid into the pump chamber, a venting conduit intercommunicating the pump chamber and the inlet of the filter device, and a valve for controlling the flow of fluid through the venting conduit.

Abstract: Plural powders are supplied to one or more torches from different fluidized-powder zones, and plural independent lines through each of these zones enable each torch to be supplied with one or more independent lines of powder flow to the nozzle-discharge region of each torch.

Abstract: In a transportation of solid materials of a wide grain-size distribution, including fine and coarse particles, a liquid as a transportation medium is added to the materials to turn them into slurry, so as to transport the latter hydraulically. The waste solution after the transportation is thickened into a heavy media, by dehydrator and solid-liquid clarifier, and reserved in a heavy media tank adapted to suitably adjust the concentration of the media. The media in the heavy media tank is returned to the transportation source, so as to serve as the transportation medium for transporting the slurry.