SU1221235A1 - Method of automatic control for column of wort-rectifying apparatus - Google Patents

Description

The invention relates to the automatic control of technological processes, in particular, to methods for the automatic control of a distillation column apparatus in the production of hydrolyzed alcohol, and can be used in food, hydrolysis and other industrial sectors.

The aim of the invention is to reduce alcohol losses and reduce steam consumption.

The drawing shows a diagram of the device that implements the proposed method of automatic control.

The device includes a bogey column 1, a pressure differential sensor 2 in the column connected to the pressure differential controller 3, the output of which is connected to the valve 4 installed on the supply line to the column, the bottom residue level sensor 5 in the column connected to the regulator Level 6, which is connected to the alcohol concentration in the bard regulator 7, connected to the alcohol concentration 8 sensor in the bard at the outlet of the column, and the output of the level regulator 6 is connected to the valve 9 installed on the bard discharge line, one of the regulator inputs 10 steam consumption coupled with prior Chick dates 5 whose other input is connected to the steam flow sensor 11 and the output controller 10 of the torus steam flow associated with the valve 12 installed on the steam line in columns

The device works as follows.

At the moment of launching the column 1 into operation after cleaning it from gypsum sensor 2, the pressure drop registers the minimum pressure difference in the column, which must be maintained for normal operation of the column.

Compiled by S. Petrovka Editor M. Nedoluzhenko Tehred O. Gortvay Proofreader V. Sinitska

Order 1553/34

Circulation 490

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

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During operation, the column is clogged with gypsum, the pressure drop on the feeding plates increases, which leads to an increase in the alcohol concentration in the bard with a constant load of the column. With an increase in pressure drop in column 1, the signal from pressure drop sensor 2 is supplied to pressure differential controller 3, which processes the signal to reduce the supply flow, acting on valve 4 installed on the supply line to the column. With a decrease in the power consumption in the column, the level of the bottom residue measured by the level 5 sensor decreases, the signal from which goes to level controller 6, which affects valve 9 installed on the discharge line of the bards from the bottom of the column, reduces the bards depending on an increase in the alcohol concentration in the bard by a signal coming from the alcohol concentration regulator 7 connected to the alcohol concentration sensor 8 in the bard.

The signal about the reduction of the bottom residue in the column from sensor 5 is sent as a correction to the steam flow controller 10, which, receiving a signal from the steam flow sensor 11, acts on valve 12 installed on the supply line to the column and reduces steam consumption according to the changed flow rate food, which leads to a decrease in the concentration of alcohol in the bard to a predetermined limit.

The use of the proposed method of automatic control of the column of the treatment rectification apparatus T0, compared with the baseline, allows reducing losses of alcohol carried with barda by 0.3% per column and reducing steam consumption by 2%.

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Claims (1)

METHOD FOR AUTOMATIC CONTROL OF A COLUMN BRAKHENA RECTIFICATION APPARATUS, which consists in regulating the power consumption by the pressure drop in the column and measuring the level of bottoms in the column, characterized in that, in order to reduce alcohol losses and reduce steam consumption, measure the alcohol concentration in the stillage at the bottom of the column and control the bard flow rate according to the level of cubic> residual in the column with correction for alcohol concentration in the bard, measure the steam flow rate at the inlet of the column and adjust it with correction according to the cubic level residue. Alcohol