SU1283723A1 - Method of automatic control of process for processing preserves - Google Patents

Abstract

The invention relates to the canning industry and may find application in automating the process of controlling the heat treatment of a concentrator in a multi-zone apparatus of continuous action. The aim of the invention is to reduce product waste and save energy. Control unit 14 receives signals from temperature setpoint 13 (T) for each section of apparatus 2 from 4-6 T sensors. At the same time, a signal from counter 21 about the amount of incoming product passing through sensor 3 is input to BU. - our, as well as the known speed of the conveyor 1, its length; s in each section and the distance from the device inlet to this section of the CU determines the time of arrival of the measured quantity of products in the corresponding section. At the onset of this time point, the CU adjusts the control output signal by changing the parameters of the heat transfer media (steam, water) by an amount directly proportional to the amount of product in the section, 1 sludge. (L

Description

eleven

The invention relates to the canning industry, namely to the automatic control of the process of heat treatment (sterilization, pasteurization) of canned food in the apparatus of continuous action.

The invention can be used in other industries where multi-zone heat treatment devices are adopted.

The purpose of the invention is to reduce product waste and save energy.

The drawing shows a block diagram ff of the device for carrying out the method.

The device comprises a conveyor 1, a multi-zone multisection apparatus 2 of continuous action (in the block diagram each zone is represented as one section), a sensor 3 for counting cans, sensors 4-6 of temperature, a sensor 7 of pressure regulating actuators 8-11 , pressure regulator 12, digital setting device 25 13, control unit 14, analog-digital converters 15-17, digital-analog converters 18-20 and counter 21,

The method is carried out as follows:

 When feeding canned food to the apparatus 2, the temperature settings for each section are set at the setting device 13. The signals corresponding to these tasks go to the control unit 14. At the same time, the control unit 14 also receives signals from the temperature sensors 4-6 via converters 15-17, Block 14 of the control generates control output signals according to a certain law of regulation, for example, proportional. These signals, via converters 18-20, flow respectively to regulating actuators 9-11 installed on the coolant supply pipelines (steam, water) in section 2 of the device. The vapor pressure supplied to device 2 is stabilized 50 as indicated by sensor 7 pressure regulator 12, the output of which controls the control actuator 8 in accordance

On the basis of this signal, as well as the known speed of the conveyor 1, its length in each section and the distance from the apparatus’s entrance to this section, block 14 determines the time of arrival of the measured amount of product in the corresponding section . At the indicated time point, the control unit 14 adjusts the control output signal to each section by an amount directly proportional to the amount of product in the section. The amount of product N; in the i-th section is determined by the ratio

35

40

N

H.

where n is the amount of incoming product in the unit per unit time, cans / min; 1 | - the length of the conveyor in the i-th

sections, m;

V - conveyor speed, m / min. The time t of receipt of a specified amount of product in the i-th section is determined by the ratio

one

where L is the length of the conveyor 1 from the entrance to the apparatus 2 to the i-th section. The proposed method for automatic control of the heat treatment process of canned food in a multi-zone apparatus of continuous action makes it possible to compensate for the disturbing effects associated with changes in the parameters of coolants, the temperature of incoming canned food, as well as the change in the number of canned food entering the device. This achieves a reduction in the consumption of coolants and coolants by at least 3%, a reduction in waste losses by 0.5%,

Claims (1)

Claims. The method of automatic control of the heat treatment process of canned food in a multi-zone continuous action apparatus, including pressure setting (pressure setting master, temperature measurement in sections of lamination zones is not shown), preheating, sterilization Simultaneously to control unit 14 and cooling, changing the supply from the counter 21 at equal intervals of time stabilized by the pressure of a pair of time, a signal is entered on the number of each section of On the basis of this signal, as well as the known speed of the conveyor 1, its length in each section and the distance from the apparatus’s entrance to this section, block 14 determines the time of arrival of the measured amount of product in the corresponding section . At the indicated time point, the control unit 14 adjusts the control output signal to each section by an amount directly proportional to the amount of product in the section. The amount of product N; in the i-th section is determined by the ratio N H. where n is the amount of incoming product in the unit per unit time, cans / min; 1 | - the length of the conveyor in the i-th sections, m; V - conveyor speed, m / min. The time t of receipt of a specified amount of product in the i-th section is determined by the ratio one where L is the length of the conveyor 1 from the entrance to the apparatus 2 to the i-th section. The proposed method for automatic control of the heat treatment process of canned food in a multi-zone apparatus of continuous action makes it possible to compensate for the disturbing effects associated with changes in the parameters of coolants, the temperature of incoming canned food, as well as the change in the number of canned food entering the device. This achieves a reduction in the consumption of coolants and coolants by at least 3%, a reduction in waste losses by 0.5%, Claims. 31283723 heating and sterilizing and changing the amount of incoming water supply to each section of the hunting zone, determining the time of arrival of the output depending on the temperature of the product to each section and the measuring instruments measured in the corresponding section of the temperament correction correction, which differs However, in order to reduce the production of a product in this section, depending on the economy of energy resources, measure it on the quantity.