SU1677695A1 - Apparatus for controlling loose material charging into hoppers of parallel working machines - Google Patents

Abstract

The invention relates to devices for automatic control and regulation. The aim of the invention is to improve the quality of processing of bulk material by optimizing the degree of exposure to the working bodies of technological machines associated with optimizing the loading of the latter. The input flow of bulk material enters storage tank 1 and then to parallel operating process machines 7. The level in storage tank 1 is measured by a level 2 sensor, the output of which is fed to level 3 of the regulator. The level is controlled by applying a control signal from the output of the controller 3 to the actuator 4, replacing the position of the valve 5 installed in front of one of the machines 7. The degree of opening of the valves 5 is monitored by the sensor 6 of the position. 1 il. (L

Description

The invention relates to automatic control and regulation devices and can be applied in large, construction, chemical and other industries, where the processing of bulk material is used by exposing working bodies to parallel technological machines,

The purpose of the invention is to improve the quality of processing of bulk material by optimizing the degree of exposure to the working bodies of technological machines associated with optimizing the loading of the latter.

The drawing shows a diagram of a device for controlling the loading of rice in parallel with a rice grinding machine of a rice grinding system in case of small flow fluctuations.

The device contains a storage hopper 1 equipped with a level 2 granular material sensor connected to a level 3 regulator. The level 3 regulator is connected to one or several actuators 4 of the control valves 5, fitted with sensors 6 for the position of the valves 5. The control valves 5 are installed in front of the process machines 7 and correspond to the number of the latter. The engine 8 of each technological machine 7 is equipped with an active power sensor 9 and an active power regulator 10 connected to an actuator 11 that changes the mutual position of the operating elements acting on the bulk material. The 6 position sensors of the valves are connected to the control points of the respective active power controllers 10.

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The indicator of active power consumed by the arrival most fully characterizes the changes in the payload of the working bodies.

The device works as follows.

The input flow of bulk material, in particular flaked rice, enters the storage hopper 1 and then to the parallel working rice processing (technological) machines 7. The level in the storage hopper 1 is measured by a level 2 sensor, the output of which is fed to the level 3 regulator. The level is controlled by applying a control signal from the output of the controller 3 to the actuator 4, which changes the position of the valve 5 installed in front of one of the machines 7. The degree of opening of the valve is monitored by the sensor 6 of the position. The remaining valves 5 are in the position corresponding to the optimum performance of the rice grinding machines 7. The active power consumed from the power supply network by the electric motors 8 drives of the rice grinding machines 7 is measured by the active power sensors 9 and maintained at a given level by the active power regulators 10 by means of The actuators 11, which change the working gap between the surfaces of the abrasive drum and the perforated cylinder at the working bodies of the machines 7, thus affect the degree of impact working organs and the effectiveness of grinding rice. In the case of a slight fluctuation in the flow of one rice grinder 7, the setting of the active power regulator 10 changes in accordance with the degree of opening of the control valve 5 installed in front of it, and for all other machines the setting is constant and corresponds to the optimum degree of action of the working bodies on rice material) at constant load.

When changing the supply of flaked rice to the rice-grinding system, the level in storage hopper 1 begins to change. The leveling circuit, which includes a level 2 sensor, a level 3 regulator and an adjusting valve 5 with an actuator 4 and a position sensor 6, changes the rice supply to rice grinding machine by changing the degree of opening of the valve 5 installed in front of this machine. A change in the degree of opening of the valve 5 is detected by the position sensor b. Each position of the valve 5 corresponds to a specific reference to the

l torus 10 active power, which provides the required efficiency and quality of grinding rice. The task change is processed by the stabilization circuit of the active power consumed from the network by the electric motor 8 of the drive of the rice grinder 7, consisting of the sensor 9 of the active power of the regulator 10 and the actuator 11 displacing

abrasive drum relative to the perforated cylinder, i.e. changing the mutual position of the working bodies. Thus, in the device, two grinding machines operate with a constant

with a load in a stable mode, and all fluctuations in the supply of flaked rice to a rice grinding system are compensated for by varying the productivity of one machine while maintaining the required quality of rice processing.

With significant fluctuations in the flow of rice, the device operates similarly, except that the level 3 controller synchronously acts, for example, on

two control valves 5 with actuators 4 and position sensors 6.

Claims (1)

Invention Formula A device for controlling the loading of bulk material of parallel operating technological machines, which contains a system for controlling the flow of bulk material, including a level sensor installed in the storage bin, and according to the number of technological machines control valves with actuators, position sensors installed between the storage bin and each the technological machine, and the control system with the help of actuators of the mutual position of the working bodies, characterized in that, in order to improve the quality of processing the bulk material by optimizing the degree of impact on it of the working bodies of the technological machines and optimizing the loading of the latter, torus The level, the input of which is connected to the output of the level sensor, and the output to the input of the actuator of at least one control valve, is additionally introduced in the number of technological machines sensors and active power controllers to the control system of the mutual position of the working bodies; the power of technological machines are connected to the first inputs of the corresponding power controllers, and the outputs of each position sensor of each valve are connected respectively to the second inputs of the active regulators power, the outputs of which are connected to the inputs of the actuators of the mutual position of the working bodies. four  ; "N 4 6