阅读说明：本技术 高炉放料角度模拟模型及其系统 (Blast furnace discharging angle simulation model and system thereof ) 是由 马永涛 雷晓柱 孙晓美 于 2018-07-20 设计创作，主要内容包括：本发明提供高炉放料角度模拟模型及其系统,按照下述步骤进行构建：步骤1,在高炉正常运行过程中,对高炉上的任一放料阀的运动角度进行跟进记录；步骤2,将上述步骤1记录得到的任一放料阀的运动角度记录数据进行汇总,并总结各个放料阀的运动规律,将其提升为高炉放料角度模拟模型。高炉编码器或联轴器损坏时,通过该模型准确计算出各放料阀的位置信息,使得执行机构能够准确进行放料操作,从而使高炉不会因为编码器或联轴器的损坏导致其减风或休风。(The invention provides a blast furnace discharging angle simulation model and a system thereof, which are constructed according to the following steps of 1, recording the motion angle of any discharging valve on a blast furnace in the normal operation process of the blast furnace, 2, summarizing the motion angle recorded data of any discharging valve obtained by the step 1, summarizing the motion rule of each discharging valve, and lifting the motion rule into a blast furnace discharging angle simulation model.)

1. Blast furnace blowing angle simulation model, its characterized in that: the construction is carried out according to the following steps:

step 1, in the normal operation process of the blast furnace, follow-up recording is carried out on the movement angle of any discharge valve on the blast furnace;

and 2, summarizing the motion angle recorded data of any discharge valves recorded in the step 1, summarizing the motion rules of the discharge valves, and promoting the motion rules into a blast furnace discharge angle simulation model.

2. The blast furnace emptying angle simulation model of claim 1, which is characterized in that: in the step 1, an encoder is installed on an output shaft of a driving motor of the discharging valve, the encoder detects the rotating angle of the driving motor of the discharging valve in real time, a signal output end of the encoder is connected with a signal input end of a single chip microcomputer, and the single chip microcomputer is used for recording the moving angle of the discharging valve recorded by the encoder.

3. The model of claim 1, wherein in step 2, the basic formula of the model is Y-Kt + A, where Y represents the simulated angle, K is an adjustment coefficient, K is determined according to the difference between the initial angle of the discharge valve and the target angle, t is the actual movement time of the valve , and A is the initial angle.

4. The blast furnace emptying angle simulation model of claim 3, which is characterized in that: in step 2, when the baiting valve is switched on from off, A is the angle when the baiting valve is switched off; when the baiting valve is switched from on to off, A is the angle when the baiting valve is fully opened.

5. The blast furnace emptying angle simulation model of claim 3, which is characterized in that: in step 2, the error of Y is 1 ° or less.

6. The simulation system of the blast furnace emptying angle simulation model based on in any of claims 1-5, which is characterized by comprising a display device, a blast furnace control device and an emptying angle simulation device;

the display device is used for displaying the running condition of the blast furnace and the opening or closing condition of the discharging angle simulation device;

the blast furnace control device is used for controlling the operation of the blast furnace;

the discharging angle simulation device is used for simulating the angle of each discharging valve on the blast furnace when the encoder or the coupler is damaged;

the display output end of the blast furnace control device is connected with the input end of the display device, and the angle simulation output end of the blast furnace control device is connected with the input end of the discharging angle simulation device.

7. The blast furnace discharge angle simulation system according to claim 6, characterized in that: and a change-over switch for manually controlling the operation of the feeding or cutting-off angle simulation device is arranged on the display device.

8. The blast furnace discharging angle simulation system according to claim 7, wherein the discharging angle simulation device is started under or more conditions that the blast furnace control device outputs an instruction to drive the discharging valve to move but the angle detected by an encoder of the discharging valve is not changed or the blast furnace control device does not output an operation instruction of the discharging valve but the angle detected by the encoder of the discharging valve is changed or the angle when the discharging valve is fully opened or fully closed is changed or the time when the discharging valve is opened or closed to a specified angle is obviously changed without manually changing the angle.

9. The blast furnace discharging angle simulating system as claimed in claim 8, wherein the discharging valve is in a fully open or fully closed position when the discharging angle simulating device is started, the angle of the discharging valve is simulated when the discharging valve is closed or opened, and the initial value is assigned to the discharging angle simulating device again when the valve reaches the fully closed or fully open position.

10. The blast furnace discharge angle simulation system according to claim 7, characterized in that: the blast furnace discharging angle simulation system further comprises a warning device which sends a warning to monitoring personnel when the discharging angle simulation device is put into operation, and the warning output end of the blast furnace control device is connected with the warning device.

Technical Field

The invention relates to the technical field of automatic control of blast furnace discharging in the metallurgical industry, in particular to kinds of blast furnace discharging angle simulation models and a system thereof.

Background

When the blast furnace is used for discharging, the material is required to be accurately placed at a designated position in the blast furnace and is accurately executed by an executing mechanism, so that the discharging valves are required to be accurately controlled, accurate information of the positions of the valves is required, but in production, damage of encoders or couplers for detecting and feeding back position information causes inaccurate position information of the discharging valves, normal discharging of the blast furnace is influenced, and the influence on the condition of the blast furnace is great.

Disclosure of Invention

The invention overcomes the defects in the prior art that the normal discharging of the blast furnace is influenced due to inaccurate position information of each discharging valve caused by damage of the encoder or the coupler, and provides blast furnace discharging angle simulation models and systems thereof.

The purpose of the invention is realized by the following technical scheme.

The blast furnace discharging angle simulation model is constructed according to the following steps:

step 1, in the normal operation process of the blast furnace, follow-up recording is carried out on the movement angle of any discharge valve on the blast furnace;

and 2, summarizing the motion angle recorded data of any discharge valves recorded in the step 1, summarizing the motion rules of the discharge valves, and promoting the motion rules into a blast furnace discharge angle simulation model.

In the step 1, an encoder is installed on an output shaft of a driving motor of the discharging valve, the encoder detects the rotating angle of the driving motor of the discharging valve in real time, a signal output end of the encoder is connected with a signal input end of a single chip microcomputer, and the single chip microcomputer is used for recording the moving angle of the discharging valve recorded by the encoder.

In step 2, the basic formula of the blast furnace discharging angle simulation model is that Y is Kt + a, where Y represents the simulated angle, K is an adjustment coefficient (what is a specific value, which is applicable to which types of blast furnaces and models), K is determined according to the difference between the initial angle of the discharging valve and the target angle, t is the actual movement time of the valve , and a is the initial angle.

In step 2, when the baiting valve is switched on from off, A is the angle when the baiting valve is switched off; when the baiting valve is switched from on to off, A is the angle when the baiting valve is fully opened.

In step 2, the error of Y is 1 ° or less.

The blast furnace discharging angle simulation system comprises a display device, a blast furnace control device and a discharging angle simulation device;

the display device is used for displaying the running condition of the blast furnace and the opening or closing condition of the discharging angle simulation device;

the blast furnace control device is used for controlling the operation of the blast furnace;

the discharging angle simulation device is used for simulating the angle of each discharging valve on the blast furnace when the encoder or the coupler is damaged;

the display output end of the blast furnace control device is connected with the input end of the display device, and the angle simulation output end of the blast furnace control device is connected with the input end of the discharging angle simulation device.

And a change-over switch for manually controlling the operation of the feeding or cutting-off angle simulation device is arranged on the display device.

And or more than 78 of the starting conditions of the discharge angle simulation device are that the blast furnace control device outputs an instruction to drive the discharge valve to move, but the angle detected by the encoder of the discharge valve is unchanged, or the blast furnace control device does not output a discharge valve action instruction but the angle detected by the encoder of the discharge valve is changed, or the angle when the discharge valve is fully opened or fully closed is changed, or the time when the discharge valve is opened or closed to a specified angle is obviously changed under the condition of no artificial angle change.

When the discharging angle simulation device is started, the discharging valve is in a fully-opened or fully-closed position, when the discharging valve is closed or opened, the angle of the discharging valve is simulated, and when the valve reaches the fully-closed or fully-opened position, the initial value is assigned to the discharging angle simulation device again.

The blast furnace discharging angle simulation system further comprises a warning device which sends a warning to monitoring personnel when the discharging angle simulation device is put into operation, and the warning output end of the blast furnace control device is connected with the warning device.

The invention has the beneficial effects that: when the encoder or the shaft coupling of blast furnace baiting valve damaged, calculate the positional information of each baiting valve through this model accuracy for actuating mechanism can accurately carry out the blowing operation, thereby make the blast furnace can not lead to its damping down or damping down because of the damage of encoder or shaft coupling, do not influence the normal blowing of blast furnace, the error of simulation angle is steerable within 1, reached the requirement of control accuracy, thereby won the time for changing encoder or shaft coupling.

Detailed Description

The technical solution of the present invention is further illustrated in step by the following specific examples.