Abstract: A hydrocyclone having a mid-section having a longitudinal axis and a radius, and a fluid injection member releasably connected to the mid-section. The fluid injection member has a dilution passage therethrough and two spaced apart dilution ports, at least one dilution port being at an angle between 15 and 75 degrees relative to the mid-section radius. The injection member comprises a nozzle housing releasably connected to the mid-section, the nozzle housing having a dilution passage therethrough, and a nozzle adapted to be connected to the nozzle housing, the nozzle being planar and having at least one dilution port therethrough, the nozzle being receivable within the dilution passage.

Abstract: A method for cleaning of a roller screen transporting and screening particles by means of at least three rotating rollers. The rollers are installed in succession at given clearances and arranged transversally in relation to the transport direction of the particles to screen a desired range of particle sizes. At least one roller changes its circumferential velocity and/or its rotational direction over time at defined time intervals for defined time periods such that for this defined time period for at least one pair of neighbored rollers one roller has a higher circumferential velocity than the other and/or both rollers roll in opposite rotational directions.

Abstract: A reject chamber for use with a hydrocyclone for separating a fiber suspension into a heavy fraction substantially containing heavy contaminants and a light fiber fraction substantially containing fibers, the reject chamber having an internal cavity, a reject inlet into the internal cavity, and a reject outlet out of the internal cavity, the longitudinal axis of the reject outlet being angled relative to the longitudinal axis of the reject inlet. The reject chamber has a stem that extends into the internal cavity at the elbow of the reject chamber, and at least two bumps, each of which extend into the chamber on opposite sides of the stem, the reject chamber taken along a cross section through the stem and between the bumps having symmetrical sides.

Abstract: A method for cleaning of a roller screen transporting and screening particles by means of at least three rotating rollers. The rollers are installed in succession at given clearances and arranged transversally in relation to the transport direction of the particles to screen a desired range of particle sizes. At least one roller changes its circumferential velocity and/or its rotational direction over time at defined time intervals for defined time periods such that for this defined time period for at least one pair of neighbored rollers one roller has a higher circumferential velocity than the other and/or both rollers roll in opposite rotational directions.

Abstract: A reject chamber for use with a hydrocyclone for separating a fiber suspension into a heavy fraction substantially containing heavy contaminants and a light fiber fraction substantially containing fibers, the reject chamber having an internal cavity, a reject inlet into the internal cavity, and a reject outlet out of the internal cavity, the longitudinal axis of the reject outlet being angled relative to the longitudinal axis of the reject inlet. The reject chamber has a stem that extends into the internal cavity at the elbow of the reject chamber, and at least two bumps, each of which extend into the chamber on opposite sides of the stem, the reject chamber taken along a cross section through the stem and between the bumps having symmetrical sides.

Abstract: Provided is a pallet car for the transport of bulk material for a thermal treatment thereof. The pallet car comprises a frame with at least two opposed cross-beams on which grate bars rest and two end pieces each connecting the cross-beams with each other, which each include at least two rollers and at least one side wall. In the pallet car, the grate bars and/or the side walls and/or the insulating plates are made of a ceramic fiber composite, wherein the fibers are metallic and high-temperature resistant.

Abstract: A method for charging pallet cars of a traveling grate for the thermal treatment of bulk material includes in a first step a first layer is applied as a hearth layer on a grate surface of the pallet car. In at least one second step a second layer at the same time or successively is applied as a side layer on two opposed side walls of the pallet car and a third layer is applied as green pellet layer between the side layers and on the hearth layer. The pellets used for the grate and the side layer differ in terms of their diameter and size distribution.

Abstract: A method for charging pallet cars of a traveling grate for the thermal treatment of bulk material includes in a first step a first layer is applied as a hearth layer on a grate surface of the pallet car. In at least one second step a second layer at the same time or successively is applied as a side layer on two opposed side walls of the pallet car and a third layer is applied as green pellet layer between the side layers and on the hearth layer. The pellets used for the grate and the side layer differ in terms of their diameter and size distribution.

Abstract: Provided is a pallet car for the transport of bulk material for a thermal treatment thereof. The pallet car comprises a frame with at least two opposed cross-beams on which grate bars rest and two end pieces each connecting the cross-beams with each other, which each include at least two rollers and at least one side wall. In the pallet car, the grate bars and/or the side walls and/or the insulating plates are made of a ceramic fiber composite, wherein the fibers are metallic and high-temperature resistant.

Abstract: A base connection is provided for supporting a concrete wall panel on an underlying support structure. The base connection comprises a generally vertical mounting plate, a wall plate, a pair of slips, and a cover plate secured to and extending upwardly from the support structure. The mounting plate includes one or more generally vertically-elongated slots. The wall plate is embedded within the concrete wall panel toward a lower end defined by the concrete wall panel. The cover plate is located outwardly of the mounting plate. An inner slip plate is located between the mounting plate and the wall plate, and an outer slip plate is located between the cover plate and the mounting plate. Threaded connectors extend interconnect the cover plate and the embedded wall plate, extending through openings in the slip plates and through one of the generally vertically aligned slots in the mounting plate.

Abstract: A base connection is provided for supporting a concrete wall panel on an underlying support structure. The base connection comprises a generally vertical mounting plate, a wall plate, a pair of slips, and a cover plate secured to and extending upwardly from the support structure. The mounting plate includes one or more generally vertically-elongated slots. The wall plate is embedded within the concrete wall panel toward a lower end defined by the concrete wall panel. The cover plate is located outwardly of the mounting plate. An inner slip plate is located between the mounting plate and the wall plate, and an outer slip plate is located between the cover plate and the mounting plate. Threaded connectors extend interconnect the cover plate and the embedded wall plate, extending through openings in the slip plates and through one of the generally vertically aligned slots in the mounting plate.

Abstract: A method and apparatus for producing foam elastomer tires for various uses including bicycle and wheel chair tires with a minimum amount of wasted material. The method involves spin casting the tires wherein a mold with suitably designed tapers on the exterior surface is placed between press plates with corresponding annular tapers which cause the mold to be accurately centered within the press plates when the press is closed. The preblended liquid foamable materials are either poured directly into the mold or onto a surface immediately adjacent to the mold gate. One or more tension members are located within the mold such that either the incoming stream of preblended liquid foamable materials wet the tension member(s), or the tension member(s) lie more or less in the path of the expanding foamable material as it fills and forces its way out of the mold, or (preferably) both.