SU1391903A1 - Device for controlling the process of tempering of gypsum binder - Google Patents

Abstract

The invention relates to automatic control systems used in the manufacturing processes of the building materials industry, can be used in production lines for the production of gypsum boards and allows for improved control accuracy. The device contains a sensor 1 weight flow gypsum, Datch, IR 2 water flow, controller 3, integrators 4 and 5, respectively, the weight flow of gypsum and water flow, the measuring unit 6, element 7 comparison, amplifier 8, logical element HE 9, logical element AND 10, comparison element 11, amplifier 12, consistency sensor 13, consistency reference 14, control unit 15, regulator actuator 16 17. 1 sludge. and (L with

Description

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The invention relates to automatic control systems used in technological processes of the building materials industry, and can be used in production lines for the production of gypsum boards.

The purpose of the invention is to improve the accuracy of control.

i The drawing shows a device for controlling the process of plaster plaster ({) thrashing.

 The device contains a sensor of 1 gypsum weight flow 1, a water flow sensor 2, an iTOp 3 regulator, integrators 4 and 5, respectively, a gypsum weight flow and water consumption, i-control, controlling the ratio element of the regulator 3 and measurement units 6 (ratio) until the specified consistency . At the moment of turning on the control unit 5–15, an automatic reset (not shown) of the integrator values 4, 5 occurs. The integration process is resumed after the installation of the new gypsum-water ratio. The operation of the device continues with the new ratio of components, but with the same preset value of the consistency of the gypsum dough.

The proposed device allows to increase the control accuracy, and ultimately to improve the quality of products.

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Trial unit 6 (ratios), comparison element 7, amplifier 8, NOT 9 logical element, AND 10 logical element, 11 comparison element, amplifier 12, consistency sensor 15, control unit 14 consistency, control unit 15 and the performer the invention

A device for controlling the mixing process of a gypsum in a binder, containing a sensor and a consistency adjuster mechanism 16 of the regulator 17 of the 20 dough, a regulator and regulating

the water supplying organ with the actuator, and the regulator output is connected to the actuator of the water supply regulator, I differ from the water supply.

The device works as follows.

The signals from sensors 1 and 2, respectively, of gypsum and water are fed to the inputs of retegrators 4 and 5. The controller 3 maintains the specified gypsum-water ratio, acting through the actuator B on the regulator 17 of the water supply, and the control accuracy in the dynamic

3 and to the inputs of the corresponding inputs., so that, in order to improve the control accuracy, it is equipped with a sensor

the gypsum-to-flow mass flow rate, a water flow sensor, two integrators, a measuring unit, two comparison elements, two amplifiers, and a dynamic error is influenced by the regular AND: JQ elements AND and the control unit. The indicated error in the device, the gypsum flow sensor is histed by integrators 4 and 5, with the aid of the main and water flow sensors connected through the measuring unit 6 and ele- mentary to the first and second comparison 7, it is compensated by supplying control inputs the torus and to the inputs of the corresponding additional signal to the third input of the current integrators, the outputs of which are g / l torus 3. When the consistency 35 deviates, they are connected respectively to the first and gypsum test from the meter input set to the second input Foot unit 11 Ment You are a comparison of the difference is the passages of which are connected with the corresponding signals of sensors 13 and setter 14 inputs a first conductive con- comparing element sistentsii. After amplification of the specified output of which is connected to the third input of the signals by amplifier 12, the voltage of the controller and to the input of the first amplifier, the second input of which is connected to the logical input, is connected to the first input through - the first input of the element is And, the sensor and sets the signal from the output of the logic element of the consistency of the gypsum test of the NOT 9 input. At the output of the NO 9, signals to the corresponding inputs of the second signal are present when controller 3 provides the comparison element , output otorrhea through Chiva existing relationship gips- second amplifier connected to a second input of water, i.e., at the outputs of the element 7, the comparison of the element I, the output of which is connected to the input and amplifier 8, is equal to zero. At the home of the control unit, the output of which at the presence of signals at both inputs is elemental with the fourth input of the controller and with that AND 10, it outputs a signal to the block 15 with the third input of the measuring unit.

control, control element of the ratio of the regulator 3 and measurement units 6 (ratio) to achieve a predetermined consistency. At the moment of switching on the control unit 15, an automatic reset (not shown) of the values of the integrators 4, 5 occurs. The integration process is resumed after installing the new gypsum-water ratio. The operation of the device continues with the new ratio of components, but with the same preset value of the consistency of the gypsum dough.

The proposed device allows to increase the control accuracy, and ultimately to improve the quality of products.

Claims (1)

Invention Formula Device for controlling the mixing process of a gypsum in a binder, containing a sensor and a setter of consistency