Abstract: Method for distributing material over the width of a conveying grate. In order to induce the material to flow off from a width section (6, 11) onto a second width section (7, 8), the first width section is operated at a lower speed of advance than the second (7, 8). In addition, braking or a smaller conveying length can be provided in the first width section (6, 11), as compared with the second (7, 8). The invention also relates to a push grate for carrying out the method.

Abstract: There is disclosed a filling device for powdered material. The filling device is to be employed between a stationary fill tube and a vehicle positioned vertically therebelow. The filling device includes a funnel that is mounted on a double carriage whereby one carriage moves in one direction and the other carriage is movable transverse to the movement of the first. Sealing means is provided to inhibit the escape of the powdered material to the environment.

Abstract: The emptying device for a bulk silo (1) with flat or slightly inclined silo bottom (8) comprises an outer slope (2) and open air transport grooves (7) distributed over the silo bottom (8). The air driven conveying chutes (7) extend radially to a ventilated annular chamber (3) located inside the outer slope (2) of the silo bottom (8), the bottom of which annular chamber is provided with open air driven conveying chutes (4) and is inclined toward the discharge opening (5). The bottom of the annular chamber (3) is located lower than the silo bottom (8).

Abstract: Bulk silo with essentially centrally located aerated mixing or homogenizing chamber whose wall comprises a plurality of permanent passage openings for the material from the main silo area and is connected to an inspection area. In order to improve inspection and service, the inspection area is formed by a hollow column which is accessible from below, is located inside the chamber and comprises observation openings into the chamber as well as comprising the vent line.

Abstract: Bulk silo with an outlet chamber, from whose upper area a generally open ventilation line runs which is provided with a closing valve for protection against flooding. The closing valve is constructed as a float valve. In order that this closing valve does not become inoperable due to clogging or being inundated with bulk material, its float cage is provided in the area below the float with an aeration device which can be made closed like a plate in order to protect the valve from the direct surge of the material.

Abstract: An annular nonreturn valve is provided in a pump with a screw conveyor mounted at each end. This nonreturn valve seals the outlet end of the pump. It also makes it possible for the conveyed material to be discharged without deflection in the slug area. The pivotability of the sealing element is made possible by the fact that the screw conveyor shaft has a smaller diameter in the direction of conveying behind the annular nonreturn valve. An area with enlarged diameter of the screw conveyor shaft can be provided on a casing so that wear parts can be easily replaced.

Abstract: In clinker coolers with a thrust grate a small part of the material to be cooled falls through the grate. These grate screenings usually are collected in funnels, let out and carried away. These funnels and transporting devices are housed between high, complicated foundations. In this invention these funnels are replaced by a removal device which moves the grate screenings horizontally through a transfer canal. This eliminates the complicated foundations and the control of the emptying device previously used.

Abstract: A mixing chamber silo is described for loose material with a mixing chamber on the silo floor and with a passage between the central mixing compartment and the outer wall of the silo through which the mixed loose material is removed. The passage has a dividing wall between the central mixing compartment and a conduit under the chamber ceiling. Only mixed loose material passes through this opening to conduit and then to the removal outlet. There is no direct connection from the silo area to the removal outlet.

Abstract: A closing arrangement for a conveyor line for a mixture containing an abrasive solid is composed of a fluid-tight valve and of a solid-tight auxiliary closing part which acts in the direction of flow in front of the valve and can be closed before the valve in time to protect it. According to the invention the auxiliary closing part is formed by a casing arranged inside the valve which casing is movably guided in the direction of the movement of the valve disk. This casing protects the valve seat from the flowing medium in a direct end position which it assumes when the valve is open. During the closing movement the valve disk contacts the casing edge before it reaches the valve seat. This essentially blocks off at least the abrasive part of the flow medium, so that the valve disk can approach the valve plate under protected conditions, while at the same time the casing is pushed against an elastic force.

Abstract: A method and a device for the uniform distribution of a bulk materials stream, particularly one conveyed pneumatically, onto a more extended cross-sectional area possibly divided up into partial stream cross-sections by partitions, is distinguished by the bulk materials stream passing through an elongate vertical charging space, at the end of which it is gathered into a narrowing outlet channel in which the bulk material shows an essentially uniform cross-section distribution and that this bulk materials stream then passes to the tip of a coaxially arranged distribution cone which deflects the bulk material sideways uniformly in all directions and in this way forms a hollow bulk materials curtain of uniform circumferential distribution. This bulk materials curtain can be used as such, for instance in a vessel in which the bulk material is sprayed with liquid, or can be used for the further subdivision into partial streams.

Abstract: There is disclosed a continuously operating system for removing particulate material from the bottom portion of a suitable storage silo. The system includes a feed conveyer from the silo to a vertical uplifting conveyer whereby the particulate material is raised to a level sufficiently high to efficiently feed a packing system or the like. A by-pass arrangement whereby to return the particulate material to the vertical uplifting conveyer whenever the packing system is indicated.

Abstract: A silo for bulk material in which a cover defines at least one de-aerated space constituting a conveyor area accessible to the material to be conveyed, with at least one pneumatic conveyor chute extending at least partially in the conveyor area and toward an outlet opening, and an air-draining area above the conveyor area and beneath the cover, separated from the conveyor area by a partition that is permeable to air and checks the passage of the material.

Abstract: A prefabricated aeration block for silo bases in which at least two aeration blocks are mounted on the top side of a flat plate and shaped, hollow support sections are fixed on the bottom side of the plate, defining air channels for distribution of air to the aeration blocks.

Abstract: A cooler for combustible material has a first section of cooling grate which is traversed by a cooling air that is fed completely to a burner as air for combustion, and has a further section likewise traversed by cooling air under the effect of at least one ventilator or blower wherein the ventilator is driven directly by a steam turbine, and that with the second section or another further section of the cooler, a steam generator is connected with the turbine.

Abstract: There is disclosed a method and apparatus for treating particulate material. The said material is injected into a chamber. The material subsequently thereto is sprayed with a moistening material. At the same time gases are introduced at the top of the chamber and at the bottom thereof whereby the moisture on the particulate material is evaporated at a controlled rate. The parameters are such that the applied moisture has an opportunity to penetrate the particulate material for a short period of time to achieve some agglomeration before the moisture is evaporated. A fluidized bed is maintained at the bottom of the chamber and the treated particulate material is removed in this fashion.

Abstract: There is disclosed a mixing apparatus for mixing particulate bulk material. The apparatus consists of a cylindrical housing having distributed thereabout equidistantly a plurality of vertically disposed tubes. The tubes possess a series of vertically displaced entranceways that communicate with the housing containing the material and internally of the tubes for delivery of the material to a centrally located homogenizer in the lower portion of the apparatus. Entrance into the homogenizer is also accomplished directly from the bottom of the zone containing the material and means may also be provided at the top of the homogenizer for introducing therethrough the to-be-mixed material. The material is maintained in a highly fluidized condition by suitably positioned blowers having introductory orifices at strategic locations. The mentioned tubes are charged with the material through an air fluidizing means, which air is then deaerated so that the material may then be further transported to the homogenizer.

Abstract: A kiln system and method of operating the same, wherein a firing kiln is heated with pulverized fuel, and a crusher for the fuel and an air cooled cooling device for the fired material are provided, with at least a portion of the cooling air being supplied to the firing kiln as secondary air after passing through the cooling device, and the pulverized fuel being pneumatically taken from the crusher to a separator, from which the greatest portion of the pulverized fuel is supplied to the burner and from which the conveying air containing a small portion of the pulverized fuel is fed to the cooling device as cooling air.

Abstract: A mixing silo for pulverulent material has a main silo chamber with a floor and a mixing chamber with a conical roof substantially centrally arranged on the floor of the silo chamber. A discharge for the material leads from the mixing chamber through the wall of the silo, and inlet openings for the material lead from the bottom of the silo chamber through the bottom of the wall of the mixing chamber. Additionally inlet openings for the material lead from different elevations within the silo chamber through the conical roof of the mixing chamber, for supply of material into the mixing chamber from different elevations in the silo chamber, thus achieving increased mixing and improved flow of the material.

Abstract: An intermittently operating pneumatic plug-conveyor has a pipe-shaped suction head for fluid material, which passes therethrough in a column, which resists dispersion. The conveyor is provided with an adjustable slot, a manifold in alignment with the slot, gas connection supports, and a timer-controlled valve system of such proportions, that the resistance of the column of the material located in the suction head relative to atmospheric pressure, is greater than the combined air-resistance of the gas supports with the adjustable slot and the valve; gas nozzles from pressurized gas supply controlled by a magnetic valve with a timer are arranged below the manifold and a back-up flow protection is provided at the receiving input.

Abstract: A blending chamber silo for pulverized bulk material has a main silo chamber with an inlet in its uppermost region, and a centrally located blending chamber on the floor of the silo has a roof and side walls with bottom apertures therein for the influx of the material from the main silo chamber into it. Aeration apparatus and air inlets are provided for the silo floor, and separate homogenization aeration apparatus is provided for the floor of the blending chamber, which operates under a pressure higher than that of the silo aeration apparatus. The roof of the blending chamber is spaced well below the top of the silo, and the blending chamber has a diameter substantially smaller than the diameter of the silo, whereby the lower portion of the silo wall and the wall of the blending chamber define a semi-annular narrow space having a height to width ratio greater than 1:1 and which breaks up material compacted or formed into bridges in its downward path toward the bottom apertures of the chamber.