Abstract: A conveyor system (1) for the continuous or discontinuous conveyance of a reactive and/or hot and/or abrasive material to be conveyed along a conveyor path includes a system housing (3) enclosing the conveyor path, which has at least one fluid inlet (5) for the introduction of fluid into the system housing (3), at least one fluid outlet (7, 9) for the discharge of fluid out of the system housing (3), a charging inlet (4) for introducing material to be conveyed into the system housing (3), and, apart from the at least one fluid inlet (5), the at least one fluid outlet (7, 9) and the charging inlet (4), are implemented in a technically fluid-tight manner.

Abstract: A method in a pneumatic material conveying system, such as in a waste conveying system, said conveying system comprising at least one feed point (61) of material, particularly waste material; a material conveyor pipe (100) that is connectable to the feed point (61); and a separator device (20), where the material to be conveyed is separated from the conveyor air; as well as means (3) for creating a pressure difference in the conveyor pipe (100), at least for the duration of the process of conveying the material. In the method, material is conveyed further from the separator device (20) to the transport container (51), particularly a waste container, by employing in the conveying of material from the separator device to the transport container means (3) of the material conveying system for creating a pressure difference.

Abstract: An agricultural equipment drive system comprises a main drive shaft connectable to a power source, a first gear box, a second gear box and a second drive shaft. The first gear box has a first gear box input connected to the main drive shaft and a first gear box output at a first angle to the first gear box input. The second gear box has a second gear box input connected to the first gear box output and a second gear box output at a second angle to the second gear box input. The second drive shaft connects the first gear box output to the second gear box input.

Abstract: An apparatus includes a feed chamber for feeding of material from storage bunkers and a lifting device for lifting the material to a high level. The lifting device includes a delivery end to which a transport line for conveying the material away to a remote delivery point can be connected, a pressure vessel having a vertical conveyor that begins in the feed chamber and ends in a top region of the pressure vessel, and a discharge pipe beginning in a bottom region of the pressure vessel and leading out of the pressure vessel. The apparatus also includes a pressurizing device which pressurizes the pressure vessel via a first valve and activates a conveying air nozzle of the discharge pipe via a second valve, and a controller for filling the pressure vessel via the vertical conveyor, fluidizing the material via the pressurizing device, and conveying the material away via the transport line.

Abstract: The present invention relates to a process for pneumatically conveying a bulk material which does not flow readily in which an input device variably meters the bulk material into a lateral conveyor until it is partially filled, and then a mechanical conveyor, in combination with the simultaneous introduction of compressed gas into the lateral conveyor, empties the bulk material partially filling the lateral conveyor, rendering the bulk material conveyable.

Abstract: The auger gasifier described includes, in its preferred embodiments, a vertically elongated (“oblong”) primary gasifier chamber with an auger that can move up and down, allowing for large amounts of fuel input when necessary. This improvement, in turn, requires and/or is facilitated by provision for simultaneous elevation adjustments of the auger and bed dam to assure that fuel material is processed in degrees from the top downward without sweeping massive amounts of the fluidized bed materials towards the output end of the chamber. Another improvement involves provision for pressurization of the primary gasifier chamber, allowing substantial improvements in the speed of processing materials through the gasifier. Due to issues arising from thermal expansion of the refractory material lining the chamber, provision is made for nozzle and refractory imbedded pipe hole thermal expansion capability.

Abstract: Provided is an apparatus for transferring slurry, which is used to transfer minerals from the bottom of the sea to the ground; and, more particularly, to an apparatus for transferring slurry, which can efficiently transfer the slurry in the state of a solid-liquid mixture containing the minerals without clogging of a transfer pipe.

Abstract: A bulk loader including an air inlet, an air-particulates separating chamber in communication with the air inlet, an air outlet in communication with the air-particulates separating chamber, means for moving air and particulates into the air-particulates separating chamber, means for separating air from particulates positioned within the air-particulates separating chamber, means for removing air from the air-particulates separating chamber, an auger, the auger being in communication with the air-particulates separating chamber by way of an auger opening in the air-particulates separating chamber, and a screen positioned across a portion of the auger opening adapted to permit air to flow therethrough and adapted to prevent particulates from flowing therethrough.

Abstract: The invention relates to a method and an apparatus for pneumatically conveying bulk material which does not flow readily, in which: bulk material is metered by means of one or more input device(s) (8) into a lateral conveyor (1); and the bulk material in the lateral conveyor is subsequently emptied via a transport line (19) wherein the metering of the bulk material into the lateral conveyor (1) is achieved by means of the input device(s) (8) and the emptying of the lateral conveyor (1) is effected with simultaneous action of a mechanical conveyor (9) in the lateral conveyor and inflowing compressed gas (17), with the mechanical conveyor (9) having a narrow clearance with respect to the lateral conveyor (1), so that the lateral conveyor is substantially emptied during the emptying process.

Abstract: A bulk material handling system generally consisting of means for holding the material; means for conveying the material including a first conduit formed of a permeable material having an inlet communicating with an outlet of the material holding means and an outlet, a second conduit formed of an impermeable material encompassing and spaced from the first conduit, providing a chamber therebetween, and an auger disposed in the first conduit for transporting material received through the inlet to the outlet thereof; means for rotatably driving the auger; and means for supplying a fluidizing gas under pressure to the chamber between the first and second conduits.

Abstract: A bulk material handling system generally consisting of means for holding the material; means for conveying the material including a first conduit formed of a permeable material having an inlet communicating with an outlet of the material holding means and an outlet, a second conduit formed of an impermeable material encompassing and spaced from the first conduit, providing a chamber therebetween, and an auger disposed in the first conduit for transporting material received through the inlet to the outlet thereof; means for rotatably driving the auger; and means for supplying a fluidizing gas under pressure to the chamber between the first and second conduits.

Abstract: A bulk material handling system generally consisting of means for holding the material; means for conveying the material including a first conduit formed of a permeable material having an inlet communicating with an outlet of the material holding means and an outlet, a second conduit formed of an impermeable material encompassing and spaced from the first conduit, providing a chamber therebetween, and an auger disposed in the first conduit for transporting material received through the inlet to the outlet thereof; means for rotatably driving the auger; and means for supplying a fluidizing gas under pressure to the chamber between the first and second conduits.

Abstract: A powder pump includes a stator and a rotor. The stator has a through-hole formed with two grooves extended in a stator spiral form. The rotor is rotated inside the through-hole of the stator. The rotor extends in a rotor spiral form such that spaces for accommodating a powder are formed between an outer circumferential surface of the rotor and an inner circumferential surface of the through-hole of the stator. The rotor is rotated to move the spaces and to transfer the powder. A cross-sectional engagement amount formed in the stator. An outer diameter engagement amount is formed in the rotor. When the rotor has a cross-sectional diameter RA millimeters and an outer diameter RB millimeters, and the through-hole of the stator has a least inner diameter SN millimeters and a largest inner diameter SX millimeters, RA, RB, SN, and SX are defined to satisfy formulas of RA−SN≧0.4 and RB−(SN+SX)/2≧0.4.

Abstract: An environmentally compliant triboelectric applicator and process for coating or ablating a substrate and for retrieving excess or ejected material from the substrate. The applicator comprises an inner supersonic nozzle for accelerating triboelectrically charged projectile particles entrained in a supersonic gas to speeds sufficiently high to coat or ablate a substrate. The applicator further comprises an outer evacuator nozzle coaxially surrounding the inner supersonic nozzle for retrieving excess projectile particles, ablated substrate powders, or other environmentally hazardous materials. A fluid dynamic coupling uses the efficacy of the Mach turning angle associated with a supersonic boundary layer of carrier gas to aspirate the central core of the supersonic two-phase jet.

Abstract: A screw pump for use in an image forming apparatus for conveying toner has a female screw type stator formed with a double pitch spiral groove in its inner periphery, and a male screw type rotor rotatably received in the stator. Assuming that the rotor has a sectional diameter of RA, and that the stator has a minimum inside diameter of S.MIN, the rotor and stator bite into each other such that a dimensional ratio of RA/S.MIN satisfies a relation of RA/S.MIN.ltoreq.1.04. A toner conveying device using such a screw pump and a toner filling system are also disclosed.

Abstract: An unloader for bulk materials is provided to transfer material such as cement from a barge or other bulk container. It includes a moveable and rotatable support member such as a crane or cantilevered arm that is adjacent the bulk container. A first conveyor or auger is connected to the support for pivotal movement and extends generally horizontally. A second conveyor or auger is connected to the distal end of the first conveyor for pivotal movement and is generally vertically oriented. A feeder unit is connected to the distal end of the second conveyor for universal and rotational movement. The feeder includes an uplift portion communicating with the second conveyor, the uplift portion advancing the bulk material at a rate slower than the second conveyor, and a collector portion communicating with the uplift portion. The collector portion includes converging auger assembly to advance the bulk material towards the uplift portion and to assist in transferring it into the uplift portion.

Abstract: The amount of finely divided particulate solids added to a stream of fluid to form a mixture of the particulate solids and the fluid is determined by a method comprising (a) determining the temperature and quantity of fluid in a stream of fluid; (b) determining the temperature of the particulate solids; (c) determining the temperature of the mixture; and (d) calculating the amount of the particulate solids in the mixture. The method can also be used to control the amount of finely divided particulate solids added to the stream of a fluid. The fluid is at a different temperature than the finely divided solids.

Abstract: A screw powder feeder has a rotary screw (12) disposed at the base of a hopper (10). The screw (12) comprises a twist drill bit. Powder is discharged into a chamber (18) and picked-up by a flow of gas. The pressure in chamber (18) is varied relative to the pressure in hopper (10) to control the feed rate for a given screw speed. Ultra-low feed rates are made possible by feeding gas into the hopper (10) through the screw (12) and controlling the relative gas pressures such that the pressure in the chamber (18) exceeds the pressure in hopper (10).

Abstract: An improved feed screw impeller apparatus primarily for use in an impeller bag packing system that is especially suited for filling bags with finely divided and aerated powders. The apparatus comprises an elongated cylindrical shaft having impeller blades extending radially therefrom at about the midpoint thereof and a plurality of feed screw flights of generally helical configuration, at least two such flights connected to said shaft on each side of the impeller blades in substantial coaxial alignment with the shaft. In one alternative embodiment of the invention there are four impeller blades and four helical feed screw flights, two on each side of the impeller blades and each terminating along an edge extending in substantial alignment with a different impeller blade. Another version of the novel impeller is employed in a packing machine also having a novel pre-conditioning hopper.

Abstract: In a process for the production of titanium dioxide by the vapour phase oxidation of titanium tetrachloride in which process entrained inert particulate material is passed through equipment used to reduce or prevent the deposition of solids thereon, the quantity of inert particulate material entrained may be affected by the varying back pressure normally obtaining in the equipment. The control of this quantity may be improved by reducing pressure differences (by means of conduit 39) between the inlet (40) and outlet (36) of a mechanical feeding device (29, 30) for the solids. This entails the transmission of the pressure (from the conduit 26) into the solids delivery system 25(17) and this may be alleviated, optionally, by maintaining a head of solids in the system and/or by using a system of pressurized hoppers. The invention enables the quantity of inert particulate material used to be reduced.

Abstract: Method and apparatus for the metered conveying of pulverulent solids with the aid of an eccentric screw pump. The pulverulent solids such as terephthalic acid (TPA) are mechanically or pneumatically loosened in the receiving chamber of the pump.