ES335825A1 - Improvements in regulating devices of a molturation installation. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements in regulation devices in a grinding plant, to maintain a specific surface previously given in the finished product, provided with a permeability measuring device to measure the specific surface of the grinding product obtained in each case, whose cell permeability is provided with a fluid cylinder by measuring gas and two gas-permeable sieve plates, essentially perpendicular to the axis of the cylinder, which for the compression of a pill of material to be checked can be moved one towards the other each to a filling or loading position, as well as to a pressing position, at a predetermined distance from each other, in which pressing positions axially limit a pill enclosure of predetermined volume, and which are fixedly developed in these positions of pressed, having connected the enclosure, which is on the opposite side to the pill enclosure, one of the sieve plates with a measuring gas branch and one of the sieve plates is also developed mobile to a deviation position that leaves the end of the cylinder assigned to it free, as well as a flowmeter connected through a measuring gas line provided with a gas valve to be measured to the gas measuring branch of the permeability cell, which shows a gas zone, as well as containing a measuring liquid that determines the amount of gas flowing through the permeability cell through the displacement of the liquid, the gas zone of the flowmeter having been connected to a pressure grading device, as well as a device for influencing the degree of grinding of the grinding facility, characterized by the joint application of the following inventive measures: a) The other screen plate is developed so that it moves in dir ection towards the pill enclosure, beyond its pressing position, to a position of expulsion; b) The flowmeter shows two measuring liquid containers arranged one above the other, containing measurement liquid, the upper measuring liquid container is fixedly fixed in space and closed relative to the environment, and with its gas zone connected to the outlet end of the permeability cell, and the lower measuring liquid container is arranged open upwards and placed on a weighing pan, with a measuring liquid tube, fixedly connected to the upper container, at the end below the measurement liquid level, which is located in the lower measuring liquid container and through which the measuring liquid tube flows, the quantity of measuring liquid corresponding to the quantity of gas passing through the liquid. permeability cell and that is expelled by the gas from the upper liquid measuring vessel to the lower vessel, and the bascu it is designed so that under the influence of the weight of the quantity of measurement liquid to measure the path traveled by the tray of the scale is as great as the sum of the path of descent traveled by the level of the liquid of measurement in the container upper and the simultaneous rise path of the level of the measuring liquid in the lower vessel; c) A time measuring device has been provided that measures the time within which the indicator element of the scale travels a predetermined path that corresponds to a quantity of liquid previously measured or to a quantity of previously measured gas. which flows through the permeability cell, and the measurement result is transformed into a signal corresponding to the specific surface of the pill of material to be checked fluid by the measurement gas; d) A control device is provided which, with its signal input side, is in actuation connection with the time measuring device and with its output side with the device for influencing the degree of grinding of the grinding device, in such a way that that, when a previously given time has been exceeded, for the time measured the device is activated to influence the grinding degree of the grinding device in the sense of reducing the grinding degree, since this previously given time was not reached, on the contrary, the device it is driven to influence the degree of grinding of the grinding device in the sense of increasing the degree of grinding; e) A partial power outlet connected behind the grinding device is provided, behind which an automatic dosing scale has been connected, which on its outlet side, is connected to the pill chamber in the permeability cell. (Machine-translation by Google Translate, not legally binding)