Importance

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Abstract

A proportioning apparatus including at least one reservoir tank (1) having an outlet port (11) for pourable bulk material and a weighing tank (3) for receiving bulk material discharged from the at least one reservoir tank, the weighing tank being arranged under the at least one reservoir tank and including a weighing cell for weighing bulk material, in which it is possible to open or close the outlet port of the at least one reservoir tank by using a shut-off device (2), and in which each shut-off device associated with a reservoir tank has a tubular housing (21) with a longitudinal axis LA, as well as a passage opening (20) for bulk material extending transversely across the longitudinal axis of the housing and with two breakthroughs (20a, 20b) extending through lateral surfaces of the housing, the outlet port of the at least one reservoir tank communicating with the passage opening, and in which a closure element (22) having a cross-section corresponding to that of the tubular housing, can be shifted inside the tubular housing along the longitudinal axis, and in which the closure element will open or close the passage opening for the bulk material, depending on the respective shift position of the closure element within the tubular housing.

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First Claim