CALIBRATION OF DUST LOAD FLOW MEASURING SYSTEMS

摘要

The invention relates to a method for calibrating a dust load flow measuring system, wherein the dust delivery line (5) leading from a metering vessel (1) to the gasification reactor (4) can be connected in the delivery direction downstream of the installed dust load flow measuring device (3) instead of to the gasification reactor with a calibration line (6) leading to the input sluice (2). The input sluice is provided with a weighing unit (WG) such that the weight of the content of the input sluice can be determined. A settable differential pressure (PIC) is controlled between the metering vessel and the input sluice (10). From the set differential pressure and the change of the weight in the input sluice, the dust load flow can be determined in a time interval. The advantages are that necessary functional tests and calibration experiments in dust input systems of gasification units can be carried out with only minor additional effort under on-site delivery conditions and with sufficiently long experiment durations.