Changing and measuring consistency

摘要

A measuring device comprising at least one mixer structure to receive a fiber suspension sample from at least one process part. Each mixer structure is provided with a measuring unit, a feeding valve for feeding feed liquid into a sample line for pushing the sample in the sample line towards the measuring unit, a mixing valve structure for feeding dilution liquid into the mixer structure The mixer structure mixes the flowing sample and the dilution liquid with one another in order to reduce the consistency of the sample. The measuring device measures from the first part of the mixed sample one property of the fiber suspension and the measuring device measures from the second part of the mixed sample a further property.

主权项

1. An arrangement for changing the consistency of a sample including a fibre suspension, the arrangement comprising:
at least one mixer structure comprising:
a sample line;a feeding valve; andat least one mixer as a part of the sample line; at least one mixing valve structure comprising at least one mixing valve; and a measurement unit;wherein:
the at least one mixer structure is configured to receive the sample comprising the fibre suspension, the sample having a predetermined consistency; the feeding valve is configured to feed a feed liquid into the sample line to move the sample forward in the sample line to the measurement unit through the at least one mixer; the at least one mixing valve structure is configured to feed a dilution liquid into the sample line; the at least one mixer in the sample line is configured to mix the forward moving sample and the dilution liquid together to change the consistency of the sample; and the measurement unit is configured to measure a consistency of the sample after the sample is moved through the at least one mixer.