Method and apparatus for gravimetric metering of powdery bulk material
AssigneeRockwool International A/S
InventorLars Elmekilde Hansen
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Abstract
The present invention concerns a method and an apparatus for gravimetric metering of a powdery bulk material, said system comprising a storage container accommodating the bulk material, a feeding pipe for feeding bulk material from the storage container to a dosing container, a dosing discharge device for continuously discharging bulk material from the dosing container to a discharge pipe and on to a discharge line, wherein said dosing container is mounted on at least one weighing cell, and wherein the feeding pipe is provided with a first flexible tube member and the discharge pipe is provided with a second flexible tube member, and wherein the first flexible tube member comprises a first compensator and a second compensator with a tubular member there between.
Claims14
An apparatus for gravimetric metering of a powdery bulk material, said system comprising:
- a storage container accommodating the bulk material;
- a mounting frame;
- a dosing container fixedly supported by the mounting frame;
- a feeding pipe for feeding bulk material from the storage container to a dosing container, the feeding pipe having a first flexible tube member, the first flexible tube member comprising a first compensator and a second compensator with a rigid tubular member arranged between the first compensator and the second compensator, the rigid tubular member being fixed to the mounting frame;
- a discharge pipe fixedly supported by the mounting frame;
- a dosing discharge device for continuously discharging bulk material from the dosing container to the discharge pipe;
- and
- at least one weighing cell, the dosing container being mounted on the at least one weighing cell and the discharge pipe is provided with a second flexible tube member.
A method of gravimetric metering of a powdery bulk material, said method comprising the steps of:
- batch feeding bulk material from a storage container through a feeding pipe to a dosing container mounted on at least one weighing cell;
- continuously discharging bulk material from the dosing container to a discharge pipe by a dosing discharge device for further processing of the bulk material;
- recording the gravimetric weight of the dosing container by the at least one weighing cell;
- whereby the feeding pipe is made axially flexible to compensate for any external displacement of the storage container and the feeding pipe, the feeding pipe being provided with a first flexible tube member and the discharge pipe being provided with a second flexible tube member, wherein the first flexible tube member comprises a first compensator and a second compensator with a tubular member therebetween, and wherein the tubular member is fixed to a mounting frame, which also fixedly supports the storage container and the discharge pipe.
Dependencies are inferred from the claim text.