Abstract: The aim of the invention is to provide a dosing device for improved measuring accuracy during the continuous gravimetric dosing of bulk material, in particular combustibles in pulverulent form. To achieve this, two dosing rotors (3, 33) are arranged on the same axis, one above the other, with intermediate or discharge openings (7, 37) being arranged in an offset manner.

Abstract: Disclosed is a device for the continuous gravimetric metering and pneumatic conveying of pourable material which is conveyed across a given distance by a metering rotor (1) which is arranged in a pressure-proof manner in a housing (2) and is provided with conveying pockets (1a). Said housing (2) comprises a charging station and a discharging station for the pourable material, which are connected to the inlet/outlet (4, 5) of a pneumatic conveyor system. The housing (2) is connected to a force metering device which detects the momentary load generated on the metering rotor (1) by the conveyed material. The inlet and outlet of the pneumatic conveyor system are connected to the bottom of the housing (2). In order to build the inventive device in a compact manner while reducing the assembly requirements and improving flow guidance, the flow from the inlet (4) to the outlet (5) is deflected within the upper area of the housing (2).

Abstract: A chain conveyor is provided having a more precise measuring/metering capacity and simpler construction. At least one measuring section, preferably a measuring bridge, is located between the inlet opening and outlet opening of the housing, and is supported by at least one force measuring device. The conveyor chain is guided along the measuring bridge on guiding elements which are fixed at the sides. The measuring bridge may be arranged with flexible intermediate elements such that the bridge is decoupled, resulting in the chain forces being compensated as the force measuring device is impinged upon.