Abstract: Disclosed is a grain conveying apparatus using air, the apparatus efficiently collecting foreign materials while moving grains upward to a position at which the grains are easily fed into a grain processing machine by using the suction force air, and preventing shock so as to prevent damage to the grains.

Abstract: A hopper bottom for a grain bin includes a hopper wall having an inverted cone shape so as to taper downwardly and inwardly towards a central bottom opening and including ventilation openings therein. Perforated ducts extend into the grain bin from the ventilation openings. According to one embodiment upright support legs support the hopper wall above the foundation. Each upright support leg has a hollow interior chamber to direct air from an inlet manifold structure to the ventilation openings in the hopper wall. According to another embodiment, an outer support wall supports the hopper wall above a floor structure which collectively enclose a manifold space which directs air from a blower into the ventilation openings in the hopper wall.

Abstract: A hopper loader is provided for supplying particulate material to a processing machine. The hopper loader includes a receiver with latching members configured for coupling to a hopper assembly. The hopper assembly includes a hopper which preferably has translucent side walls to permit visual inspection of the contents of the chamber within the hopper, and a filter element positioned atop the receiver which is configured so that particulate material trapped by the filter element will periodically fall back into the chamber for processing without operator intervention.

Abstract: A plant for transport of granular material comprising container for granular material to be transported, receiver-meter group designed to receive granular material from container, conveyance duct of granular material from container to receiver-meter group, depressurization-pressurization means arranged to suction/inject a gaseous medium from/into container, and vacuum duct between receiver-meter group and depressurization-pressurization means, thereby creating a flow of granular material and gaseous medium in at least one conveyance duct or line directed to receiver-meter group and a flow of gaseous medium between receiver-meter group and depressurization-pressurization means, the plant comprising detection means of parameters of flow located in vacuum duct or line, adjusting means of the power of depressurization/pressurization means and electronic control means designed to receive in input control signals from speed detection means and to emit control signals in output for driving adjusting means.

Abstract: A bulk material cargo container liner system comprises an inflatable bulk material cargo container liner which has at least one vacuum discharge tube member disposed internally within the bulk material cargo container liner and extending along the longitudinal extent thereof for discharging bulk cargo material outwardly from the bulk material cargo container liner, and at least one inflatable air bag component for conducting the bulk material, disposed within the bulk material cargo container, toward the vacuum discharge tube member.

Abstract: A method for conveying material by applying a pressure difference in a conveying conduit (4), in which method the material is fed into the conveying conduit (4) and in the conveying conduit further into a separating device (5), where the material being conveyed is separated from conveying air, in which method a negative pressure is created in the conveying conduit (4) by means of an ejector apparatus (6), whose suction side is connected to the separating device (5), said ejector apparatus being operated using an operating medium consisting of a liquid mist, especially an aqueous liquid mist, said medium being sprayed through at least one spraying nozzle (122) into an ejector tube (128) directed into a separating element (38). In the method, the generation of the negative pressure to be produced is intensified according to need by limiting the flow of gases, such as air, into the ejector tube (128) from the direction opposite to the spraying direction of its operating medium, i.e.

Abstract: An apparatus for pneumatically conveying particulate material containing reaction products of a high pressure reactor from a supply vessel at a pressure of at least two bar to a receiving vessel at a considerably lower pressure. The apparatus includes a conveyor line attached to the supply vessel, a collecting vessel between the conveyor line and the receiving vessel, the collecting vessel including (i) a discharge conduit for the carrier gas, (ii) a device for controlling the discharge velocity of the carrier gas from the collecting vessel, and (iii) a device for controlling the pressure of the material collected in the collecting vessel, and a device for conveying the material directly from the collecting vessel to the receiving vessel essentially at the same pressure as is prevailing in the receiving vessel.

Abstract: A system for discharging dried product, particularly for drying filters, drying units and the like, comprising, on a container for treating and containing a dried product, a discharge hole that is controlled by a discharge valve, interposed on a pneumatic circuit suitable to produce a circulation of fluid in output from the discharge hole. An agitator is also provided which acts on the dried product to facilitate its outward conveyance.

Abstract: A railroad tank car can be filled with a slurry of a solid and a solvent therefor. The tank car is fitted with a feed distribution header that is provided with a plurality of predetermined spaced openings. The header is mounted in the car so that after the solids have settled, the solids are located below the distribution header and the supernatant liquid is above the distribution header. The supernatant liquid can then be withdrawn from the tank car through the distribution header and flows back to a storage tank from where it came. All of this can be accomplished with a single pump. Removing or unloading of solids from the car is effected by rendering the solids flowable with a liquor and pumping the solids from the car or dissolving them.

Abstract: An improved system (10) conveys comminuted material from a source (12) to a vessel (14), especially for continuously conveying chopped poly(ethyleneterephthalate), or PET, into a methanolysis recovery reactor without entrainment of air into the reactor and without frequent jamming of the apparatus. A single rotary vane valve (36) is provided in the conveyance path at an inlet (38) to the vessel. The valve has clearances between the vanes (44) and the housing (48) larger than the smallest dimension of the comminuted material to prevent jamming of the rotor by PET flakes. The internal spaces (52, 47) in the valve are continuously purged with nitrogen at sufficient volume and pressure such that gases and fumes in the vessel are substantially prevented from passing upward through the valve. Nitrogen also flows from the valve countercurrently through the supply ducts (26, 30) to strip entrained air from the incoming material.

Abstract: A method of discharging particulate material from a first container to a lower positioned storage area being under a lower pressure than the first container. Particulate material is discharged via an upper tube section of a discharge tube communicating with the first container and permanently containing a column of the particulate material. The discharged material is directed into a pressurized stabilizer. The discharged material is directed via a lower tube section to a material feeder for forming columns of the particulate material in the upper and lower tube sections thereby reducing the pressure of the material to a predetermined normal pressure level at the input of the feeder. The material is fed to the storage area. The quantity of discharged material is controlled by the feeder.

Abstract: Separation of a high temperature (e.g., 300.degree.-1200.degree. C.) and high pressure (e.g., 2-20 bar) solids-gas stream from a pressurized fluidized bed reactor into solids and gas while reducing the pressure of both the gas and solids takes place in a vertical de-entrainment vessel having a packed bed of solids within it. The possibility of fluidization of the solids is minimized by causing the velocity of the gas component of the solids-gas stream to be reduced during, or just prior to, introduction of the gas into the packed bed of solids, e.g., by providing an expanding conical end to the inlet for the solids-gas stream into the vessel. A gas permeable solids impermeable element may also or alternatively be connected to the inlet and extend toward (optionally all the way to) the side wall of the vessel, to substantially prevent fluidization.

Abstract: Separation of a high temperature (e.g., 300.degree.-1200.degree. C.) and high pressure (e.g., 2-20 bar) solids-gas stream from a pressurized fluidized bed reactor into solids and gas while reducing the pressure of both the gas and solids takes place in a vertical de-entrainment vessel having a packed bed of solids within it. The possibility of fluidization of the solids is minimized by causing the velocity of the gas component of the solids-gas stream to be reduced during, or just prior to, introduction of the gas into the packed bed of solids, e.g., by providing an expanding conical end to the inlet for the solids-gas stream into the vessel. A gas permeable solids impermeable element may also or alternatively be connected to the inlet and extend toward (optionally all the way to) the side wall of the vessel, to substantially prevent fluidization.

Abstract: A fast cycle system for transport of particulate material in dense phase has a feeder assembly dispensing material into a pulse pod assembly. The latter is connected to a pressurized pipeline and the pod of material is sent into the pipeline upon receipt of a pressure drop signal. Boosters spaced along the pipeline selectively vent and pressurize the pipeline driving the pod through to a receiver. The system including a receiving hopper and discharge valve in the receiving hopper for imparting, when actuated, peristaltic motion to the particulate material moving in the pipeline.

Abstract: A substance delivery and filter system for use in delivering or conveying a dry, fluid powder substance from a closed container to an open receptacle is provided. The delivery and filter system includes a filter housing having a heavy particle cyclone separator, a fine particle filter bag assembly, a substance inlet port positioned just above the heavy particle cyclone separator, a substance outlet port positioned at the bottom of the cyclone separator, and a filtered air outlet port communicating between the clean side of the filter bag assembly and the outside environment. The powder substance in the container is entrained in an air stream and introduced into the filter housing through a conduit connected to the substance inlet port. The heavier substance particles fall downwardly from the swirling air stream caused by the cyclone separator and are discharged into an open-air receptacle from the substance outlet port.

Abstract: Ultrafine powder is stored in a pneumatic transportation tank (20), and is discharged to a transporting conduit (23) while being fluidized by the pressurized air fed through a fluidizing air port (24). The ultrafine powder is fed to a weigher (30) provided at the other end of the transporting conduit (23), at which the weight of the transported ultrafine powder is weighed by a load cell (31). After the weighed value reaches 90% of a predetermined value, the fed amount of the pneumatic transportation air is reduced, and a bypass regulating valve (38) is adjusted to thus decelerate the transportation. When the weighed value reaches 100% of the predetermined value, the discharge of the ultrafine powder to the transporting conduit (23) is stopped. This method and the apparatus enable the storage, quantitative batch transportation, and automatic weighing of the ultrafine powder such as silica fume.

Abstract: A filter apparatus for use in filtering dust and the like from a pressurized air stream flowing through a manhole of a hopper trailer in a particulate transfer system includes a filter sheet having a shape substantially corresponding to the shape of the manhole and a plurality of filters mounted thereon. A retainer flange is installed in the manhole for supporting the filter sheet and a filter hold down is provided for holding the filter assembly in the manhole and for pressing the filter sheet into contact with the retainer flange. The filter hold down clamp contacts the filter sheet along the central longitudinal axis of the passage in order to provide one-point hold down of the sheet.

Abstract: A cord sampler for sampling impure granular materials a small hole in a wall of the hose connection between a pressure side of a blower and a simple tubular sampling spear, through which hole a weak air flow will be blown out, whereby a correspondingly weak air intake will occur through and open end of the spear, and hereby a considerable improvement of the sampling accuracy is obtained. A similar, but smaller hole may be provided in the suction connection to the spear in order to reduce a vacuum at this place.

Abstract: A pneumatic conveyor and related method for seeds or other particulate matter comprises a cyclone or vortex type discharge device, a blower for supplying a flow of air, a conduit coupled to the blower and to the discharge device for supplying a flow of air thereto, the conduit being primarily a flexible conduit, and a venturi in the conduit for pneumatic coupling to a supply of seeds whereby the seeds may be withdrawn from a supply container into the venturi for transport with the air stream to the discharge device. The venturi is connected to the container by a component that comprises a slide gate closure between the opening of the container and the intake of the venturi.

Abstract: A system and method for efficiently removing and disposing of a continuous web of matrix waste formed during the high speed manufacture of adhesive backed, pressure sensitive label stock on a printing press. As it leaves the press, the web of matrix waste is formed into a generally tubular rope in a cylindrical eductor. A controlled mixture of a high volume, high air and oil is used to pass the rope of matrix waste through an eductor, into and through a flexible hose, and into a compactor where the rope is compacted into relatively compact bundles. These bundles can then be readily deposited and efficiently stored in waste receptacles.

Abstract: A method of transporting large diameter solids, such as coal having a diameter of greater than 1 inch, preferably eight to twelve inches, predicated on pipe diameter, in the form of a slurry through a pipeline is disclosed. The method comprises the step of placing large diameter solids in a vehicle and pumping it through a pipeline. The specific gravity of the vehicle is substantially equal to the specific gravity of the solids so that the coal remains in suspension over a wide range of pipeline velocities. A lubricant is added to the vehicle to reduce friction and enhance energy efficiency of the process. The coal is pumped from a pumping tank into which the solids and vehicle are introduced, the pumping tank, after filling, is pressurized with a fluid such as air or inert gas to propel the mixture through the pipeline. This pump and its valving allows large diameter solids to be pumped through the pipeline.

Abstract: The waste collecting apparatus includes a container with a movable wall which rises during accumulation of waste within a container and which compacts the waste within the container. Outlets for the exhaust of the carrier medium are provided in the stationary wall of the container in one embodiment or in the movable wall in a second embodiment. Compressed air may also be delivered to the container in a pulsed manner so as to impart a tamping action to the movable wall during a filling operation.

Abstract: A transport pipe for a compressed-air conveying of a homogeneous mixture, the pipe including a nozzle on the outlet end of the pipe for discharge of the mixture into a storage container. The nozzle comprises a throughflow opening for passage of the mixture therethrough, and lateral openings for the discharge of compressed air into a mixture-confining sheath of compressed air about the mixture.

Abstract: The connecting duct which directs the flock-laden air stream into the chute is provided with a restriction as well as with a ring duct for directing air impulses into the duct via openings on opposite sides of the duct. The restriction causes the air stream to accelerate and, since the air flow is closer to one opening, rather than the other, a reduced pressure is created on that side. This, in turn, causes a pulse of air to travel from one end of the ring duct to the other. The air pulse continues into the connecting duct to deflect the flock-laden air stream towards the other opening. This sequence then continues in rapid fashion to allow an even deposit of the flock in the chute.

Abstract: Finely divided coal is slurried with liquid carbon dioxide and pumped from a source (mine, dump, railway car, etc.) to a loading pier where, after deslurrying, the coal is pneumatically carried by gaseous carbon dioxide into a storage facility or directly to a waterborne carrier. The coal is maintained under a blanket of carbon dioxide gas during storage and transport. When the waterborne carrier, which may be an ocean going vessel or an inland waterway vessel, reaches its destination, the coal is removed using carbon dioxide gas and then delivered to storage or a use point. If the use point is some distance away, the coal may be reslurried with liquid carbon dioxide and pumped to its final destination.

Abstract: Apparatus for transferring powdered ore from a storage tank to a bin associated with an electrolytic cell. The cell defines a chamber containing an electrolyte and includes means for transferring ore from the bin to the chamber. The apparatus comprises a fluidizing conveyor for conveying powdered ore from a storage tank to the bin, a first vent interconnecting the conveyor and bin and a second vent interconnecting the bin and chamber. In a preferred embodiment, a source of pressurized gas causes ore to flow through the conveyor, and the apparatus further comprises a pressure switch for closing the source in response to a buildup of fluid pressure in the conveyor. Another preferred feature is a fluidizing pad inside a conduit connecting the storage tank to the conveyor.

Abstract: A method and apparatus for feeding material intermittently discharged from one machine, primarily an injection molding machine, to another machine, primarily a granulator mill. The feeding-in operation offers low energy consumption, great flexibility as regards material particle size and discharge rate for the grinding material, as well as minimal hazard risk. A predetermined amount of material is collected in a receiving compartment whereafter the collected material amount is moved along a supply path into the granulator mill by means of one or more currents of driving gas which flow through the receiving compartment and are led off from the supply path before reaching the granulator mill itself. The driving gas which is discharged intermittently only during the actual feeding cycle also opens a pivotal flap disposed in the supply path and preventing goods being subjected to grinding from being flung out of the granulator mill.

Abstract: Apparatus including an enclosed pressurized conveying and storage system that will allow potentially explosive flyash or other fine material to be handled with the minimum possibility of damage to the equipment in the event of an explosion. The steel storage vessel is maintained under slight pressure with inert gases by means of a pressure relief valve and an inert gas supply, and is kept at a high enough temperature to prevent condensation of the gas (so that corrosive acids are not formed) by electric inductance heaters and insulation. Airlock valves are used to allow the ash into and out of the transport and containment system.