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Description
The paper pulp is delivered by a pump to the intake bath of the regulator in which a constant pulp level is maintained. Drum 1 rotates at constant speed about fixed axis B and is divided into equal sections. Therefore, the pulp always passes out from under the drum in equal volumes in equal time intervals. The outflow of the pulp is regulated by backing wall 2 which is set to correspond to the required pulp consistency. Upon a change in consistency, the rate of flow through slit a changes and, therefore, its level between the drum an wall 2 also changes. Upon an increase in consistency of the pulp, the level is raised. This raises float 3, turning lever 4 about fixed axis A. The end of the lever is withdrawn from pipeline 5 and the pressure in pipeline 6, through which compressed air is delivered, and in cylinder 7 drops. At this, the rod of piston 8 is raised by spring 9 and, by means of a device (not shown), increases the water supply. Upon a decrease in the pulp consistency, the elements of the regulator operate in the reverse direction. $4255$CHP,Rg$
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