Abstract: A system for preparing a dry process material includes a sealed container that holds and seals the dry process material therein and prevents airborne dust or particles from the dry process material from escaping the sealed container. Sealed processing equipment receives the dry process material from the sealed container and prevents the airborne dust or particles from escaping the sealed processing equipment. A sealed connection sealingly couples the sealed container to the sealed processing equipment and prevents the airborne dust or particles from escaping while transferring the dry process material. A sealed transfer conduit is sealingly coupled to and extends from the sealed processing equipment.

Abstract: The present invention relates to a device (1) for automatically cutting a material web (2) with a longitudinal cutting device (60) using a material web (2) in a longitudinal direction (L) separable in at least a partial web (3) and/or at least a remaining web (4), a discharging device (10) for automatically discharging the produced remaining web (4), a transverse cutting device (70) downstream of a longitudinal cutting device (60) for cutting the remaining web (4) transversely to the longitudinal direction (L).

Abstract: The present application provides a back mixing device for use with a pneumatically conveyed flow of solids having a varying flow rate. The back mixing device may include a nozzle, a chamber in communication with the nozzle, and an exit. The chamber may include an expanded area leading to a restriction such that the chamber creates a recirculation pattern in the flow of solids so as to smooth the varying flow rate though the back mixing device.

Abstract: A system includes a solid feed fuel pump. The solid feed fuel pump includes a solid feed flow path configured to route a solid fuel flow from an inlet to an outlet. The solid feed fuel pump also includes a vent including a filter, wherein the vent is configured to discharge fluid flow that is opposing the solid fuel flow.

Abstract: The present application provides a solids feeder in communication with a flow of solids and a flow of a conveying fluid. The solids feeder may include an outlet channel with the flow of the solids therein and a discharge port in communication with the outlet channel. The discharge port further may include an inlet in communication with the flow of the conveying fluid and a flow channel. The flow channel may include a reduced cross-sectional area about the outlet channel as compared to the inlet.

Abstract: According to various embodiments, a system includes a solid feed pump. The solid feed pump includes a housing, a rotor disposed in the housing, a curved passage disposed between the rotor and the housing, an inlet coupled to the curved passage, an outlet coupled to the curved passage, a solid feed guide extending across the curved passage, and a thermal control path through a portion of the solid feed pump.

Abstract: An apparatus is described for transporting particulate material. A housing includes a wall defining an inlet and a wall defining an outlet spaced downstream from the outlet. A duct is enclosed in the housing between the inlet and outlet, the duct being formed between first and second substantially opposed drive walls moveable relative to the housing from the inlet toward the outlet and at least one arcuate wall extending between the inlet and the outlet. The drive walls have a greater surface area for contacting the solid material than the arcuate walls. The drive walls rotate relative to an axis. An assembly is provided for positioning the second drive wall in the housing for rotation in a plane at an angle relative to the axis such that the distance between the first and second drive walls adjacent the inlet is greater than the distance downstream from the inlet when the drive walls are moving.

Abstract: A system for containing oil or other contaminants which have leaked from an oil tanker or similar structure is disclosed. A series of flotation members are connected end to end and stored around the perimeter of the tanker. A membrane is folded and packed into a recess in each member and held between the member and the tanker. The members are held against the sides of the tanker by a movable stay. In case of an oil leak, a triggering mechanism sequentially moves the stays to release the flotation members, which drop off the tanker into the water. One edge of the membrane is attached to the members while the opposite edge of the membrane is free. The free edge of the membrane falls from the members so that the membrane forms a curtain in the water. Each flotation member is further connected to adjacent members by a flexible jacket and adjacent edges of each membrane are connected to each other. In this manner a continuous curtain surrounds the tanker to prevent passage of all or most of the spilled oil.

Abstract: A centrifugal pump for feeding pulverized material such as coal particles from a low pressure zone into a high pressure zone, said pump having nozzles mounted on a rotor. The pulverized material is ejected into the high pressure space through the nozzles, and gas is supplied to the nozzles to control the flow rate of the pulverized material. Devices are provided that ensure mass flow of the material through the nozzles, even if the nozzles have a short length.

Abstract: This relates to an elevating system for elevating used abrasive particles in a blast machine arrangement so that theused abrasive particles may be returned to an associated blast head for reuse. Basically speaking, the abrasive particle elevating system includes a throwing wheel mounted within a housing to which there is coupled an elevating casing. These two elements replace the normal and more expensive installation a bucket type conveyor for delivering the used abrasive particles and materials removed thereby to an elevated separator associated with a supply bin for abrasive particles for an elevated blast head. The throwing wheel may be of a varied construction and there may be at least two throwing wheels in tandem to provide for a greater elevating height or horizontal distance. If desired, a second throwing wheel may throw the used abrasive particles over the roof of a blast room so that there may be a blast head on two opposite walls of the blast room.

Abstract: A method of and apparatus for continuously dredging sludge deposited on an underwater bed, at a high density of the sludge, according to which digging and scooping devices are placed in an airtight hood opened at its bottom, which is applied on the intended underwater bed and into which air is then introduced to obtain a condition in which water is removed out of the hood, and the digging and scooping devices are then put into operation, whereby dredging is effected at a high efficiency in that the content of water in sludge being dredged is suppressed to a minimum, the sludge being transferred under pressure in a state of containing substantially no additional water than it naturally contains.

Abstract: A forage blower having an upwardly extending, tangential blower outlet transition member which is hinged along one of its sides so as to be swung laterally to thereby expose the inside of the blower housing. By swinging the outlet member laterally, only a very small clearance is required between the upper end of the outlet member and the lower end of the conveying pipe which conveys the material to the top of the silo. The upper end of the outlet member has an upwardly extending lip which facilitates the connection between the upper end of the outlet member and the lower end of the conveying pipe. The hinge arrangement between the transition member and the blower housing is such that the hinge is mounted on and supported by the rim sheet bracket.

Abstract: A forage blower having an upwardly extending, tangential blower outlet transition member which is hinged along one of its sides so as to be moved to thereby expose the inside of the blower housing. The blower housing includes a two-portion rim sheet. A wear liner is secured in one portion of the rim sheet and is located generally in the lower part of the blower housing; this wear liner can be replaced by circumferentially shifting the rim sheet and the wear liner together to an area where the wear liner can be replaced when the blower outlet transition member is moved. The construction of the side walls, rim sheet portion and liner is such that a smooth and unobstructed inner surface of the liner and rim sheet is provided for the material being handled.

Abstract: A forage blower having a power transmission unit which is secured to the side wall of the blower housing and to the hub of the blower fan. The mounting arrangement eliminates components required in prior art machines. The unit can be reversed, end for end, to provide two different speeds to the blower fan.

Abstract: An improved forage blower having a small first stage paddle wheel type impeller or ventilator feeding a large conventionally sized second stage paddle wheel type impeller or ventilator via a short duct for transferring forage from the first stage ventilator to the second stage ventilator, the arrangement being such as to maintain the duct as short as conveniently possible to reduce loss of forage speed from the first stage ventilator to the second stage ventilator. The shafts of both ventilators are spaced apart and parallel, extending horizontally from a main power input for connection with a suitable motor such as the power take off of a farm tractor.

Abstract: A centrifugal pump for transferring solid particles from a low pressure zone into a high pressure zone comprises a centrifugal rotor and a housing that are each rotatable about a central axis. The rotor debouches particles into the interior of the housing and a screw conveyor is arranged in the housing for transporting particles along the inner surface of the housing to an outlet which is coaxial to the central axis.

Abstract: Apparatus is shown for substantially increasing the feed rate of pulverized material into a pressurized container. The apparatus includes a rotor that is mounted internal to the pressurized container. The pulverized material is fed into an annular chamber defined by the center of the rotor. A plurality of impellers are mounted within the annular chamber for imparting torque to the pulverized material.

Abstract: Method and apparatus are shown for control of continuous feeding of pulverized material to a high pressure container. A rotor is located within the high pressure container. The pulverized material is fed from a feed hopper through a stationary feed pipe to a vented spin-up zone chamber to a plurality of sprues mounted in the rotor. Control of the pressure within control nozzles downstream from the sprues adjusts the flow rate of coal through the sprues.

Abstract: A centrifuge for sifting granular material, ranging in particle size from a few microns to several hundred microns, for example, comprises an upwardly concave frustoconical disk rotatable about a horizontal axis and provided with a similarly shaped cover defining therewith a narrow annular gap of outwardly converging radial cross-section. Air, or some other gaseous or liquid fluid, is axially introduced from above into that gap together with the granular material to be centrifuged, the fluid stream imparting to the smaller particles an added acceleration making the velocities of all particles substantially equal at the disk periphery.

Abstract: The feed material handling apparatus has a frame vertically supporting a feed material blower with an upwardly extending transition discharge member and horizontally supporting an impeller with a rotor for delivering feed material to the blower. The blower discharges the material upwardly through the transition member. In the two forms of the horizontal impeller the rotor turns clockwise in one and counterclockwise in the other. The frame is mounted on detachable wheels. .Iadd.