SU826301A1 - Method of automatic control of hydrolysis - Google Patents

Description

I

The invention relates to the biochemical industry, and more specifically to hydrolysis production and can be used in managing the process of hydrolysis of plant raw materials.

There are known automatic methods: controlling the hydrolysis process, which consists in regulating the supply of cooking liquid in the hydrolysis unit D and 23.

The disadvantage of these methods is low control efficiency. This deficiency is especially pronounced when the raw material is poorly filtered, which leads to an imbalance, i.e. the balance between the release of hydrolysis of a and the cooking mixture entering the hydrolysis plant is disturbed, and the cooking mixture accumulates in the hydrolysis apparatus, which leads to a loss of decomposition of sugar,

; thereby reducing the performance of the hydrolyzate.

The purpose of the invention is to increase the productivity of the hydrolyzate.

This goal is achieved in that the regulation of the supply of cooking mixture in the hydrolysis apparatus is carried out depending on the magnitude of the mismatch between the desired and the current values of the mass of the contents in the hydrolysis apparatus.

In the process of obtaining a sugar-containing hydrolyzate, the hydrolysis apparatus enters the cooking oil that passes through the layer of raw material. enriched with monosaccharides. In case of violation of the filtering ability of the raw material, there is a gradual increase in the mass of the hydrolyzate by the accumulation of the cooking mixture.

The drawing is a diagram explaining the proposed method.

The scheme contains a hydrolysis apparatus 1, a mass meter 2, controllers 3 and 4, a program setting unit 5, actuators 6 and 7, dampers 8 and 9, a task generation unit 10, measure the I consumption of the cooking mixture. As a control signal, an error signal is received between the programmed and current values of the mass of the hydrolyzer 1, Signals proportional to the change in mass of the contents of the hydrolyzer 1 measured by the mass meter 2 are fed to the input of the regulator 3, and the second input receives a signal from block 5 of the program. The regulator 3, in accordance with the incoming signals, generates an actuator / mechanism 6 control signal, which acts on the valve 8 installed on the hydrolyzate output line, as well as the error signal received at the input of the task generation unit 10, which in turn generates a signal , Which is the task for the regulator 4 consumption of the cooking mixture. At the same time, the input from the regulator 4 receives a signal from the meter 11 of the cooking mixture. The regulator 4B, in accordance with the incoming signals, generates a control signal for the actuator 7, which acts on the valve 9 installed on the feed line of the cooking mixture. The application of the proposed method makes it possible to increase the control efficiency and the productivity of the hydrolysis apparatus. In a preliminary study and calculation, for example, for the Kirov Biochemical Plant, whose productivity is equal to 147744 tons of sugar per year, it can increase its output by 1.2%. The profit obtained is P S (Q2-Qi) 195022 p / g, conditionally constant cost of 1 ton of sugar produced (1 IO PJ g QH Qi) of the amount of sugar produced, respectively, prior to the implementation of the proposed control method Qj 147744 t / g and after introduction of 149516 t / g Formula. The method of automatically controlling the process of hydrating the plant raw material, provides for the regulation of the supply of cooking mixture to the hydrolysis apparatus, characterized in that, in order to increase productivity, the regulation of the supply of cooking liquid is carried out. , depending on the magnitude of the mismatch between the set and the current values of the mass of the contents in the hydrolysis unit. Sources of information taken into account during the examination 1. USSR author's certificate No. 557103, cl. C 13 K 1/02, 1975. 2. USSR author's certificate No. 587161, cl. From 13 to 1/02, 1976.

Claims (1)

Formula. inventions A method for automatically controlling the process of hydrolysis of vegetable raw materials, providing for regulating the supply of the cooking mixture to the hydrolysis apparatus, characterized in that, in order to increase productivity, the regulation of the supply of cooking liquid is carried out depending on the size of the mismatch between the set and current values of the mass of contents in the hydrolysis apparatus.