SU847198A1 - Method of automatic control of gas-silicate mixture vibration bloating process - Google Patents

Description

C, including the determination of the setting speed, the rate of change of the lifting height of the mixture, the calculation of the set ratio of the setting speed to the speed and the change of the height of the raising of the mixture from the measured humidity of the molding mixture in the mixer at the time of its discharge into the mold and the control of the vibration effects g and taking into account the calculated set ratio of the setting rate to the swelling rate, the synchronization coefficient of the physicochemical processes is calculated. setting and heaving throughout the whole process of forming the articles, and controlling the mode of vibratory impacts is performed by a signal comparing the calculated setting speed and the synx 5onization coefficient.

In the drawing, a block diagram is illustrated illustrating the proposed method.

The method is as follows.

In the Moquent discharge into the gas silicate mixture from the mixer, the humidity sensor 1 measures the initial molding moisture of the mixture. The signal from humidity sensor 1 goes to analog-to-digital converter 2 and then to counting device 3 / Where, according to the predetermined hardness setting by the prefix.4, the required value is calculated related to the setting rate of the mixture swelling height.

During the molding process, the gas silicate mixture by sensor 5 controls the process of structure formation, the signal of which enters block 6, autocorrection, containing analog-to-digital converter 7, calculating device 8 and. unit 9 s. ado to: the synchronization effect of the physicochemical processes of heaving and setting, in Apple 6 autocorrection, throughout the whole process of vibroforming, the synchronization factor is constantly adjusted.

The output voltages from the temperature sensors 10 and the lift heights of the mixture 11, amplified by amplifiers 12 and 13, enter differential differential devices 14 and 15, in which signals proportional to speeds are formed, changes: temperatures, and elevations that characterize the speed itself setting the mixture. The signals from devices 14 and 15 are received in block 16 division. Block 16 output

proportional to the ratio of the first derivatives, is compared in comparison block 17 with the signal formed in the task block and the adjusted synchronization coefficient of the processes of seizure and swelling. The error signal from the comparison unit 17 is fed to the input of the regulating unit 18, at the output of which a signal is generated that controls the mode of vibration effects in order to provide

synchronization of the physicochemical processes of the setting and expansion of the mixture.

The vibrator is turned on only when the mixture is being expanded and turned off after it has stopped. This is achieved by the fact that the signal from the device 15, proportional to the rate of change of the height of the mixture rise, goes to the relay

the controller 19, which. disables the drive 20 of the vibrating plate 21.

Claims (2)

1. Author's certificate of the USSR 316011, cl. From 01 N 33/38, 1970. 2. USSR author's certificate on application 2558478/33 cl. G 01 N 33/38, 1977 (prototype)