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US 6,047,857 AGranted
Device for removing bulk material from a silo
OwnerHinrich Haakeinventor
Life of this patent
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Abstract
A process for removing bulk material from a gastight silo. At the silo outlet (10) a container is connected in a gastight arrangement with an input valve and an output valve (12, 13) through which the container is evacuated before the bulk material is removed. In addition, a gastight membrane (20) is fitted in the container (11) in order to seal off the bulk material from the surroundings during the initial stages of the removal operation.
Claims4
A process for gastight removal of free flowing bulk material from a gastight silo (9) while preventing oxygen from entering the gastight silo from outside, comprising:
- providing a gastight silo having an outlet opening;
- providing a container having a wall, an inlet, an outlet, an inlet valve, an outlet valve, an additional connection, and a diaphram, the diaphragm being in the container and generally cylindrical in shape;
- providing a gastight connection from the outlet opening of the gastight silo to the inlet of the container;
- closing the outlet valve and opening the inlet valve of the container;
- feeding bulk material from the gastight silo into the diaphragm when the inlet valve is open and the outlet valve is closed, wherein the diaphragm is deflected into abutment with the wall of the container;
- closing the inlet valve and opening the outlet valve;
- and
- emptying the bulk material in the diaphragm downward when the inlet valve is closed and the outlet valve is open.
5 more elements
Dependencies are inferred from the claim text.