SU662582A1 - Method of automatic monitoring of pressing process on screw-type presses - Google Patents

Description

(54) METHOD FOR AUTOMATIC CONTROL OF THE PRESSING PROCESS ON AUGER PRESSES

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The invention relates to the wine industry, in particular to a method of automatic control of pressing on screw presses.

A known method of automatically controlling the pressing process on screw presses according to the coefficient of extraction of the liquid phase 1.

However, this method is difficult to determine the costs of individual fractions of the wort directly when they leave the individual zones of the process.

The aim of the invention is to improve the accuracy of the control.

The goal is achieved by the fact that, according to the proposed method, the recovery factor of the liquid phase is judged by its consumption, determined by the time it takes to fill a vessel of constant volume.

FIG. 1 shows a device explaining the proposed method; in fig. 2 is a circuit diagram of the device.

To cone. 1, under the nozzle 2, through which the wort fraction flows into the chamber 3 of the cone through the perforations of the snare drum 4, the counters 5 and 6 of the liquid are strengthened with a tilting vessel 7, divided into two equal parts with a capacity of about 2.5 liters each. Limit switches 8 and 9 are mounted above each of them, which switch the control relays 10 and 11 and at the same time play the role of dampers limiting the swing angle of the vessel 7.

To automatically determine the flow rate of the wort fraction by the time of filling the vessels, counters 5 and 6 are used, which are driven by a pulse generator 12.

The control method is carried out as follows. The wort from the chamber 3 through the pipe 2 enters the left side of the vessel 7.

The limit switch 8 turns on the relay 10, the contact 13 in the circuit of the counter 5 is closed, and the contact 14 in the circuit of the counter 6 is open and the signals of the generator 12 pulses go to the counter 5. The contact 15 is closed and the signal lamp 16 is lit above the counter 2 indicating that at the moment the reading of this counter stores information about the duration of the filling of the previous (right) part of the Vessel.