SU441283A1 - Device for adjusting the weight of the charge in the hopper of the sintering machine - Google Patents

Description

one

The invention relates to ferrous metallurgy, in particular to devices for controlling sintering machines.

A device for automatic level control of the charge in a sintering machine loading hopper is known; correction of the flow rate of the plate feeder according to the charge level in the hopper.

The use of a level sensor embedded in the hopper in this device leads to an increase in the device error due to the nonlinearity of the output characteristic of the sensor, the heterogeneity of the charge, changes in its chemical composition, density, etc. (level measurement error is 5-7%). In addition, installing a sensor in the hopper complicates the setup and operation of the device.

The purpose of the invention is to improve the quality of regulation.

For this, the loading hopper of the proposed device is mounted on a weighing device, see a device with a weight converter, the output of which is connected to the input of the disc feeder corrector unit.

The described device is shown in the drawing.

It consists of an input bunker 1, a plate feeder 2 with a drive 3, a weight meter 4 with a converter 5, a controller 6, a setpoint regulator 7 of the regulator, a pelleting drum 8, a loading bunker 9, a drum drum 10, a correction unit 11 for a plate feeder, a weighing , its devices 12, weight converter 13 and weight adjuster 14.

As a weight meter 4 can be

A serial VL1058 weight meter is used. As a converter 5, a regulator 6, a setting device 7, a correction unit 11, existing monitoring and control devices, such as a ferrodynamic system, can be used. The weighing device 12 is an electromechanical type device with a setting device and a differential-transport or ferrodynamic type converter.

The device works as follows.

When the device is turned on, the signal from the output of the gate 7 (proportional to, for example, the performance of the sintering machine) is fed to the input of the regulator 6, the output

which is connected to the input of the actuator 3 of the plate feeder 2. In this case, the plate feeder 2 supplies the charge to the load receptor of the weighing device 4, from where the charge enters the pelletizer 8. The output voltage of the converter 5 is fed in antiphase with the output signal of the transmitter 7 so that the flow rate of the plate feeder is stabilized.

After mixing, while being pelletized along the pelletizer drum, the charge enters the hopper 9, from where the drum feeder 10 is fed to the sintering belt. When the charging hopper is filled with a pelleted charge, the weight sensitive element of the weighing device 1; vyush, its devices 12; The deformation of the weight-sensitive element is converted by the converter 13 into a proportional electric sigal, which is compared with the output signal of the weight unit 14 and fed to the input of the correction unit II. The output of the corrector unit; p I is connected to the input of the setting device 7, with the output sigal of the correction unit being fed in antiphase with

the output voltage of the setter, which provides for the correction of the flow rate of the plate feeder according to the weight of the charge in the loading hopper. Thus, for example, when the weight of the charge in the loading bin exceeds a given value, the difference signal at the output of the setting device 7 decreases, which leads to a corresponding decrease in the flow rate of the plate feeder.

Subject invention

A device for adjusting the weight of the charge in the charging hopper of an sintering machine, comprising a feedback unit for filling the input bin, connected to the corrector unit of the flow rate regulator of the input feeder bin, in order to improve the quality of regulation, the loading bunker is equipped with a weight measuring unit the output of which is connected in opposite with the corrector unit of the flow rate regulator of the input feeder plate hopper.