SU715564A1 - Method of automatic control of vegetable raw material hydrolysis process in hydrolysis apparatus - Google Patents

Description

aZgaa - e &

Z is the number of sugars from light hydro; we use: n: Olis Kharidov by the time t.6 .- correction factor of accounting

 ::. composition Sakharov. :. .

In the proposed method, in order to increase the quality of the obtained hydrolysis, as well as to increase the productivity and reduce the cost of production, a price comparison has been introduced for different options for different values of the input parameters. Such a criterion is obobsh, enna objective function

Eo6 --djEiH + «. GEgn - djEaH-tmax

where (, cti, оСз - weight coefficient (significance) of particular objective functions;

H) n, the normalized value of the target function of good quality,, the hydrolysates;

Ean is the normalized value of the objective function of production,;

ESH is the normalized value of the objective cost function.

In order to determine the total number of decomposed sugars and to obtain the value of the generalized objective function in the proposed method, a device for searching and analyzing the hydrolysis modes is used, which consists of two analog computing masks MN-7, operating in parallel, and a special attachment for setting the initial conditions and variable coefficients, and solves these tasks on an accelerated time scale of 1: 500

.- The drawing shows a scheme for controlling the process of hydrolysis of plant raw materials in a hydrolysis apparatus, which includes program setups for 1-3 weights, temperatures and water consumption, adder 4-6, sensor m 7-9 respectively for weight, temperature and water consumption, regulators 10-12, respectively, weight, temperature and flow rate of water, actuators 13-15, hydrolysis apparatus 16, heater 17, steam collector 18, water supply line 19, water delivery line 20, search device 21

and analysis of hydrolysis modes, device 22. select pdaram.

The hydrolysis process is controlled as follows. Using the device 21 for the search and analysis of hydrolysis modes, a series of curves of changes in the quality of disintegrating sugars is calculated.

during cooking, corresponding to the highest value of the generalized objective function for the accepted conditions. After that, the rates of change of the control parameters corresponding to the calculated curves are determined, i.e., the change programs are selected.

 weight, temperature and water supply, ensuring that the process is conducted in accordance with the calculated values of the amount of sugar that has decayed.

In accordance with the cooking conditions, the program selection unit 22 determines the required programs for changing the weight, temperature and water supply. The signals from the programmers of weight, temperature, and water consumption, functionally dependent on the amount of decomposed substances in the hydrolyzate, are fed to the corresponding adders 4–6, which are compared with signals from sensors 7–9, weight, temperature, and water consumption. The results of comparisons as control actions are received on

Corresponding regulators 10-12 weight, temperature and water flow. Next, the signal from the controller 10 is fed to the actuator 13, mounted on the linin 20 issue of the hydrolyzate.

The signal from the temperature controller 11 is supplied to an executive mechanism 14 mounted on the steam manifold 18. The signal from the water consumption controller 12 is fed to the actuator 15 located on the water supply line 19.

Claims (1)

Invention Formula A method of automatically controlling the hydrolysis process of plant raw materials in hydrolysis apparatuses by controlling the temperature and supplying water and the weight of the contents of the hydrolysis apparatus, characterized in that, in order to increase the efficiency of control, the amount of sugar grown in the hydrolizate is determined, and the regulation of the supply of water, its temperature and the weight of the contents Hydrocarbons are used depending on the amount of sucrose disintegrated in the hydrolyzate. G9 t t5 ) I: 1HJ