Abstract: A device for dosed dispensing of flowable material components comprises supply containers receiving the material components and having an outlet and with at least one removal element having an inlet. Each material component can be removed from the supply container in dosed charges by a screw with controllable drive. The removal element can be docked to the outlet of the supply container, wherein the screw is disposed without drive, but rotatable in the region of the outlet and within the supply container and has an outlet-side coupling element. A controllable drive is disposed in the region of the inlet of the removal element whose drive shaft has a terminal coupling element which can be connected to the coupling element of the screw for secure mutual rotation therewith, and also having a closing piece sealing the outlet of the supply container. The closing piece for the outlet of the supply container is loaded with an axial spring force to hold the closing piece in sealing abutment on the outlet.

Abstract: A device for dosed dispensing of flowable material components comprises supply containers receiving the material components and having an outlet and with at least one removal means having an inlet. Each material component can be removed from the supply container in dosed charges by means of a screw with controllable drive. The removal means can be docked to the outlet of the supply container, wherein the screw is disposed without drive, but rotatable in the region of the outlet and within the supply container and has an outlet-side coupling means. A controllable drive is disposed in the region of the inlet of the removal means whose drive shaft has a terminal coupling means which can be connected to the coupling means of the screw for secure mutual rotation therewith, and also having a closing piece sealing the outlet of the supply container. The closing piece for the outlet of the supply container is loaded with an axial spring force to hold the closing piece in sealing abutment on the outlet.

Abstract: A sifting machine comprises a stationary sifting basket, a rotor rotating within the sifting basket and a worm conveyor feeding into an end of the sifting basket for dosing and introducing the material to be sifted. The rotor and the worm conveyor are driven for rotation, wherein, in order to achieve an optimal rate of revolution adjusted to the desired mode of operation for both the worm conveyor and the rotor, each has its own drive device. In order to facilitate removal, the unit comprising the rotor, the sifting basket and the associated drive mechanism can be axially removed from the sifting machine housing and subsequently pivoted-out in a sideward direction via a pivot bearing.

Abstract: A suction conveyor or delivery arrangement for the gravimetric allocation of pourable material components to several demand stations has a storage container containing in each case one component connected by, in each case, one delivery line to a distributor and a separator at each demand station, which is connected via a delivery line to the distributor, a suction line with stop valve to a suction fan and can be emptied via a closable discharge opening at the demand station. A control for the demand-dependent dosing of the components has a demand indicator, which releases a control signal for setting the distributor to the desired component and for opening the stop valve, as well as a setting device which, on reaching a predetermined quantity, releases a control signal for opening a ventilating valve in the delivery line and for closing the stop valve.

Abstract: In an apparatus for separating suspended particles, such as ash, from stack gas, consisting of a coarse separator, a take-up container for particles removed from suspension in the coarse separator, a fines separator for the partially-cleaned gas output of the coarse separator, and a stack for the cleaned gas output of the fines separator, a new arrangement is disclosed for maintaining the temperature of the dirty stack gas within the apparatus above its dew point so as to prevent the deposition of soot (sooting-up), such arrangement being the construction of the apparatus in such a way that the coarse separator, the fines separator and the outlet stack form an integral structural unit which sits upon the take-up container, which is supported by feet set upon a foundation. In such arrangement, the heat of the hot, suspended ashes deposited in the take-up container is transferred to the take-up container, and thence, to the elements of the integral structural unit.

Abstract: An apparatus for supplying stationary small- to medium-sized heating plant with flowable solid fuel such as coal dust or coal breeze has a vacuum conveyor running from a fuel storage container of the apparatus to the heating plant for transporting the fuel from the container to the boiler. The blower of the conveyor has an aspiration port joined up with the container. The container has flexible walls of textile material and has an air blow-off line and a filter sheet for separating the coal dust from any coal dust-air mixture produced. This design makes it possible for the heating plant to be run automatically with the least leakage of dust and volatile substances out into the air.

Abstract: In apparatus for dosaging bulk material in a pneumatic conveying stream the dosaging is effected by means of an apertured disc having an annular array of through holes of small diameter which, as the disc rotates about an axis, transfer discrete quantities of bulk material from a column thereof in a supply container to a pneumatic conveying conduit through which the apertured portion of the disc passes between sealing rings which act as stripping elements. The disc is located coaxially within the supply container and driven by a motor whose speed is adjustable to allow the dosaging quantity to be varied. The conveying conduit is taken through the supply container and interrupted at the position of the apertured disc where the conduit is provided with the sealing elements. The bulk material is fluidized by air drawn in through the bottom of the container and extracted through the top by means of a fan which supplies the conveying air to the conduit.

Abstract: A silo for bulk materials has a rigid base and a fluidizing means which comprises an air-pervious mesh floor arranged above the rigid base, a support surface means holding the said floor in spaced relation relatively to the rigid base and at least one compressed air supply duct opening into the intermediate space between the rigid base and the mesh floor, the support surface means being formed by a wire gauze placed on the rigid base. The wire mesh may be annular and may be in sector-shape portions with a radially extending packing or seal arranged between each of the separate sectors and a compressed air supply duct associated with each sector. A helical wire mesh is particularly described and illustrated, with tube sections arranged as seals on the terminal wire helices.

Abstract: In a suction conveying installation in which different bulk materials are conveyed from respective supply containers to a separator which may serve as a weighing container, the separator is adapted to serve as a mixer and comprises at the bottom at least one ventilation valve to be opened after the end of the separating or weighing operation while the suction fan of the installation is still running, so that air is drawn into the container from the bottom to entrain and mix the materials. Constructional details of the separator including various valve arrangements are described, also certain control arrangements including a pressure monitoring device downstream of the separator.

Abstract: In apparatus for weighing powdered material conveyed by suction from two or more supply containers to a single weighing and separating container via individual conduits with respective shutoff valves, the said valves are directly adjacent one another near the weighing container and in a common block to which are connected the said individual conduits and a common outlet conduit leading to the weighing container. For controlling the dosaging, an air supply valve and a secondary air valve may be provided on the valve block upstream of the shutoff valves. The respective valves may be driven by compressed-air cylinders controlled by switches associated with the weighing balance.