Abstract:
A hopper car comprises two substantially similar units which are relatively short and have low roof lines. A pair of trucks is connected to opposite ends of the car. A third truck is connected between the two units. A coupler between the units and the third truck provides articulation therebetween.
Abstract:
The container communicates through an outlet, which is adapted to be closed with a lock chamber, which is adapted to be emptied and is provided with a pressure-relief valve. When it is desired to empty the lock chamber the volume which is available in the lock chamber for the gas is initially increased so that the pressure in the lock chamber is reduced. Thereafter the lock chamber is opened.
Abstract:
A transfer system for controlling and initiating the flow of metered amounts of materials which may be radioactive ash, radioactive calcined salts, cement, flour, or pharmaceuticals comprising a vertical non-converging conduit which acts as a storage hopper; a stationary platform located at the downward end of the conduit to allow the radial outward flow of the material; a translatable hollow piston that acts externally but coaxially to the conduit and platform to interrupt the radial flow of material; a hopper located below the platform for accepting the material; and a housing that encloses and supports the hopper and platform and provides a dust tight seal around the apparatus of this invention.
Abstract:
A device for introducing dosed quantities of pulverized solid materials into a carrier gas stream is presented. The device is particularly suitable for injecting solid fuels into a shaft furnace during metal refining. The device comprises a housing which defines a flow chamber in the axial direction for the flow of pressurized fluid or carrier gas. The housing also has a side aperture therethrough. The side aperture is connected to a container holding pulverized materials. Coaxial inner and outer sleeves, at least one of which is capable of rotation, are located within the housing. The outer sleeve communicates with the aperture while the inner sleeve has an axial bore which provides a passage for the carrier gas. Upon rotation of a sleeve, slots provided on each sleeve will align and overlap with each other and with the aperture to define a variable sized passage between the container and axial bore whereby the pulverized material is delivered therethrough to the carrier gas stream.
Abstract:
A double valve assembly for regulating the feed of particulate material to or from a pressure vessel comprises a valve casing containing a flow-regulating valve and pressure sealing valve in series. Particulate material is fed to the valve assembly through a feed tube located at the top of the casing. The flow-regulating valve comprises a dish-shaped valve member swingable from a first position wherein it confronts the bottom of the feed tube and blocks flow of material therethrough to a second position at one side of the feed tube. The bottom of the feed tube is constructed and arranged to guide the particulate material away from the second valve position and thereby facilitate swinging movement of the swingable member from its first to its second position.
Abstract:
A feeder assembly for particulate matter blowing machines including a cylindrical member with an opening along its upper surface through which particulate matter is inserted. A drive shaft is positioned longitudinally through the member and a cylindrical drum mounted around the drive shaft. A vane assembly attached to the drum engages the inner surface of the member at a plurality of locations thereby defining a plurality of airlocks. An inlet cover is attached to one end of the member and it has an inlet opening through which gases are forced into the airlocks. An outlet cover is attached to the opposite end of the cylindrical member and the outlet cover has an outlet opening aligned with the inlet opening through which the particulate matter is blown out of the airlocks. A motor turns the drive shaft whereby the airlocks pass adjacent the opening and particulate matter fills the airlocks, and then the airlocks are rotated until adjacent the openings when the material is blown out.
Abstract:
A high-pressure transfer device and method of utilization thereof are provided which allow flexing of the transfer device housing, and significant wear of the relatively rotatable components, without leakage. The transfer device includes a rotor having at least five diametrically through-going pockets, and enclosed by a housing having an exterior periphery and four ports disposed around the exterior periphery for registry with inlets to and outlets from the pockets. An interior screen is provided in each rotor pocket, and the rotor is cylindrical. Sealing structures are disposed between the rotor and housing around the external periphery of the rotor and interior periphery of the housing, the sealing structures maintaining effective sealing despite any relative movement between the housing and rotor, such as radial deflection of the housing. The sealing structures preferably comprise removable sealing shoes of a less wear-resistant material than the rotor. Pressure compensators for applying a force proportional to the liquid pressure at a particular point to maintain the sealing structures in sealing relationship with the rotor are provided at all of the ports, and accessory pressure compensators are provided adjacent the high-pressure ports.
Abstract:
A high pressure transfer device and method of continuously conveying hard particulate material using the high pressure transfer device ensure proper operation even under high pressure differential. The high pressure transfer device includes a pocketed rotor containing through-going pockets and a housing enclosing the rotor and having ports disposed around the exterior periphery of the housing. A structure, such as first and second jacket portions, is provided for applying a radially inwardly directed force to the housing exterior periphery roughly proportional to and opposite a force tending to deflect the housing radially outwardly so that significant deflection of the housing is prevented. The force application structure generally applies a force proportional to the pressure of high pressure liquid entering the transfer device. Such a force applicator structure may be a piston and cylinder arrangement, or bellows arrangement, with a pair of force transmitting rods interconnecting the jacket portions. The transfer device is normally mounted for rotation about a vertical axis, and deep underwater.
Abstract:
The invention provides for a rotary valve of the type employed for transporting solid material between zones having a fluid pressure differential, with a minimum fluid leakage between the zones. The valve has a housing with a bore, passages communicating with the bore and designed to be coupled to the respective zones, and a rotor which is housed within the bore. The rotor is defined by an axial drive shaft, a pair of spaced end plates on the shaft and a series of radial vanes disposed between the end plates. The valve is formed with material deflecting formations on the peripheral surfaces of the end plates the formations being adapted for urging material inwardly into the zone intermediate the end plates upon rotation of the rotor in a predetermined direction.