SU1344779A1 - System for automatic control of grain wetting process - Google Patents

Abstract

The invention relates to the brewing industry and can be used to automatically control the grain locking processes in the production of malt. The purpose of the invention is to improve the conditions of the grain locking process and to increase the quality of the malt produced. The system includes a temperature control loop in the lock tank, consisting of a temperature sensor 2 in the lock tank connected to the temperature controller 3, a grain determination unit 4 through the temperature setting unit 5 connected to the temperature controller 3, and mechanism 6 on the steam supply line, contour stabilize Solidyx & & (L with CD

Description

13D

pH, consisting of a pH sensor 7, connected to an pH controller 8, which is connected to an actuator 9 on the irrigation water supply line. The system is also equipped with a dissolved oxygen sensor 10, which is connected to the inlet of the unit 11 — the control of the blower motor and to the inlet of the pump control unit 12 of carbon dioxide. The purpose of the invention is achieved in that the system provides stability

one

The invention relates to the brewing industry and can be used to automatically control the grain locking process during malt production.

The aim of the invention is to improve the quality of the malt produced.

The drawing shows a block diagram of an automatic process control system. Grain locks ..

The automatic locking process control system includes a lock tank 1, a temperature control circuit consisting of a temperature sensor 2 in the lock tank, a temperature controller 3, a grain moisture detection unit 4, a temperature setting unit 5, and an actuator 6 installed on the steam supply line , the medium pH stabilization circuit, including the wastewater pH sensor 7, the regulator 8, the actuator 9 on the irrigation water supply line, the air supply control circuit and the carbon dioxide suction, containing Occupancy U of dissolved oxygen in the waste water, the blocks 11 and 12. The control associated respectively with the blower motor 13 and the pump 14 pumping the carbon dioxide.

The system of automatic control of the grain locking process works as follows.

The temperature controller 3 receives information about the current temperature value from temperature sensor 2 and sets a certain steam flow rate for the equipment 79

grain temperature, the temperature being determined by the moisture of the grain, the constant pH of the water in the tank, and the constancy of the oxygen content in the soaking water. For this, the moisture and temperature of the grain, the pH and the oxygen content of the waste water are measured; Depending on these parameters, the amount and temperature of the water for grain irrigation, as well as the air supply and pumping of carbon dioxide from the working volume, are regulated. 1 sludge.

warming of the water supplied for irrigation with the help of the actuator 6. The task for the temperature controller 3 is recalculated by the unit 5 to set the temperature every 4 hours of the lock according to the formula

M M (1 -KtT e)

(one)

ten

where M is the predicted humidity,%; M - maximum moisture content of grain,%;

T t temperature in the lock cha-.

Or

no, C;

estimated time, counting from the beginning of the lock; k - coefficient.

The coefficient k is identified every 4 hours of the lock. For this purpose, the formula (1) is applied, and instead of the predicted humidity, the real humidity measured at time t, i.e. the new value of k is determined by the pressure

. eleven / . M. k ---- In (1 ----,)

as well as information from unit 4 for determining the moisture content of the grain, information in which is entered by the operator every 4 hours. .

The setting of the temperature controller 3 is calculated by the temperature setting unit 5 such that the humidity predicted by expression (1) coincides with the specified humidity after the calculated time interval. B further

To determine the setting of the temperature controller 3 in expression (1), a new, calculated value of the coefficient k is used.

Thus, the temperature in the lock vat is maintained to ensure that the grain reaches a predetermined moisture content by the specified deadline (the end of the lock). ,

To improve the maintenance conditions of the process, the pH of the wastewater is measured by means of a pH sensor 7 and using a pH regulator 8 of the actuator 9, a constant pH of 6.4+ is maintained on the water supply line for an oriental malt cell. 0.2 pH. As the pH adjuster 8 rises, the control signal to the actuator 9, which reduces the water flow, and the water exchange 20 in the tank slows down, which leads to a decrease in pH. When the pH falls below the target, the reverse occurs, leading to an increase in pH to a predetermined value. In order to improve the process conditions 25, the concentration of dissolved oxygen in the resistant water is also measured using an oxygen sensor 10. When the concentrate, grain mixing and agitating occurred after 12 hours.

The proposed system of automatic control of the grain locking process is most effective compared to the prototype. Improved locking conditions improve the quality of light malt, while the extract content of freshly sprouted honey grows by about 1.5%, amylolytic activity by 1.7%.

Claims (1)

Invention Formula The rate of dissolved oxygen in the environment is reduced by 90% compared with the concentration at the beginning of the sticking process, the oxygen sensor 10 causes control signals to the input of the carbon dioxide pump control unit 12 and to the input of the blower motor control unit 11. After receiving the signals, block 12 turns on the carbon dioxide pump for 15 minutes, and block 11 turns on the blower motor with a 15-minute delay. The blower remains turned on until the concentration of dissolved oxygen reaches a priori of a given initial concentration, then the sensor 10 transfers the control signal to unit 11, which turns off the blower engine. Thus, a rational aerobic mode of locking process is maintained, which worsens the quality of the malt. Experimental verification of the proposed system of automatic control of the grain locking process was carried out in 1500 liter vats on the basis of VNSh1PI Order 4888/27 Custom polygons Ave, Uzhgo city, st. Project, 4 malt about equipment brewery. Soaking barley to a moisture content of 44% was carried out in two vats, one above the other. Grain soaking was carried out according to the prototype and using the proposed control system. At the end of the soaking for the active germination of grain and more active dissolution of the endosperm of the grain in the tank with the grain, water was poured for 4 hours with the addition of IEC-1 at the rate of 10 g per 1 ton of soaked grain. Barley grains were germinated in a pneumatic malt house mobile c Mixing the grain and agitating was carried out after 12 hours. The proposed system of automatic control of the process of locking the grain is the most effective compared to the prototype. Improving the conditions of the lock allows for improving the quality of light malt, while the extract content of freshly sprouted malt increases by about 1.5%, and the amylolytic activity by 1.7%. Invention Formula The system of automatic control of the grain locking process, containing a series-connected blower engine, a first control unit and a dissolved oxygen sensor, a carbon dioxide pumping pump connected to a second control unit, whose inlet is connected to a dissolved oxygen sensor, a grain temperature sensor in the tank, and an actuator irrigation water supply lines, characterized in that, in order to improve the quality of the malt produced, it is equipped with a control circuit for supplying steam for heating water, Luciano serially connected unit measuring grain moisture, temperature setting unit, a temperature controller, and an actuator on the steam supply line, connected in series effluent pH sensor and pH regulator, the latter being connected to the actuator to supply water for irrigation line. Circulation 499 Subject