CN103789484A

CN103789484A - Automatic timing device for tracking service life of converter tap hole

Info

Publication number: CN103789484A
Application number: CN201210429559.7A
Authority: CN
Inventors: 叶玉奎; 陈群
Original assignee: Zenith Steel Group Co Ltd
Current assignee: Zenith Steel Group Co Ltd
Priority date: 2012-10-31
Filing date: 2012-10-31
Publication date: 2014-05-14

Abstract

The invention relates to an automatic timing device for tracking service life of a converter tap hole, and is used for timing the converter tilting steel tapping process. The converter has a tilting device which comprises an angle encoder; a programmable controller with a timing signal output end and a reset signal output end; an intermediate relay comprising a timing relay and a reset relay; and a timer with a timing control end and a reset end. Coils of the timing relay are connected with the timing signal output end of the programmable controller; coils of the reset relay are connected with the reset signal output end of the programmable controller; a normally open contact of the timing relay is connected with the timing control end of the timer; a normally open contact of the reset relay is connected with the reset end of the timer. The automatic timing device of the invention automatically collects the steel tapping time in the converter tilting steel tapping process by the programmable controller, displays the steel tapping time, thus determines the service life of the tap hole, and reduces artificial misjudgement.

Description

Converter taphole is followed the tracks of automatic timing unit work-ing life

Technical field

The present invention relates to technical field of steel production, particularly a kind of converter taphole is followed the tracks of automatic timing unit work-ing life.

Background technology

Existing converter taphole work-ing life is all generally according to manual observation tap hole wear pattern, judges the tap hole life-span in conjunction with the tapping time.Because tap hole wearing and tearing are more serious more greatly, generally by larger steel stream, put the steel time short, easily descend slag.Therefore, the basic core body time of tapping now in converter taphole work-ing life is upper, and judgement will definitely not cause tap hole short work-ing life, and cost of idleness, can cause tap hole to burn what is more.

Summary of the invention

The technical problem to be solved in the present invention is: in order to overcome in prior art converter taphole according to manual observation tap hole wear pattern, judge the tap hole life-span in conjunction with the tapping time, easily cause the tapping time to judge inaccurate, thereby make tap hole short work-ing life, cost of idleness, the deficiency that even causes tap hole to burn, the invention provides a kind of converter taphole and follows the tracks of automatic timing unit work-ing life, can accurately draw the tapping time, the people who reduces tap hole wear pattern is erroneous judgement.

The technical solution adopted for the present invention to solve the technical problems is: a kind of converter taphole is followed the tracks of automatic timing unit work-ing life, puts the timing of steel process for converter inclining, and described converter has tiling arrangement, comprises

Angular encoder: for detection of the turning angle of Tilting Device of Converter;

Programmable logic controller: there is timing signal output terminal and reset signal output terminal, for exporting timing signal and reset signal;

Intermediate relay: comprise time switch and reset relay;

And timing register: have for controlling timing control end that timing starts and finish and the reset terminal for zero clearing;

The coil of described time switch is connected with the timing signal output terminal of described programmable logic controller;

The coil of described reset relay is connected with the reset signal output terminal of described programmable logic controller;

The normally opened contact of described time switch is connected with the timing control end of timing register;

The normally opened contact of described reset relay is connected with the reset terminal of timing register.

Described timing register is electric time-keeping large-size screen monitors, and described timing control end and reset terminal are passive switch amount signal input part.

Described programmable logic controller is PLC.

When entering, the angle of inclination that angular encoder collects tiling arrangement puts steel angular range, programmable logic controller output timing signal; Leave while putting steel angular range when the angle of inclination that angular encoder collects tiling arrangement, programmable logic controller stops exporting timing signal; When angle of inclination that angular encoder collects tiling arrangement is during at-5 ° ~+5 °, programmable logic controller output reset signal.

The invention has the beneficial effects as follows, converter taphole of the present invention is followed the tracks of automatic timing unit work-ing life, automatically the steel time that puts converter inclining being put in steel process by programmable logic controller gathers, and show that this puts the steel time, thereby judge the work-ing life of tap hole, reduce artificial erroneous judgement.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is PLC output signal schematic diagram in the present invention.

Fig. 2 is the fundamental diagram of the first relay1 coil and the second relay1 coil in the present invention.

Fig. 3 is the fundamental diagram of Counter of the present invention.

Q0.0, timing signal in figure, Q0.1, reset signal, K1, reset relay, K2, time switch, TC, timing control end, RST, reset terminal.

Embodiment

In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present invention is only described in a schematic way, and therefore it only shows the formation relevant with the present invention.

As shown in Figure 1, Figure 2 and Figure 3, converter taphole of the present invention is followed the tracks of a kind of embodiment of automatic timing unit work-ing life, the timing of putting steel process for converter inclining, described converter has tiling arrangement, comprises angular encoder: for detection of the turning angle of Tilting Device of Converter;

PLC: there is timing signal output terminal Q0.0 and reset signal output terminal Q0.1, for exporting timing signal and reset signal;

Intermediate relay: comprise time switch K2 and reset relay K1;

And timing register: have for controlling timing control end TC that timing starts and finish and the reset terminal RST for zero clearing;

The coil of described time switch K2 is connected with the timing signal output terminal Q0.0 of described PLC;

The coil of described reset relay K1 is connected with the reset signal output terminal Q0.1 of described PLC;

The normally opened contact of described time switch K2 is connected with the timing control end TC of timing register;

The normally opened contact of described reset relay K1 is connected with the reset terminal RST of timing register.

Described timing register is electric time-keeping large-size screen monitors, and described timing control end TC and reset terminal RST are passive switch amount signal input part.

Utilize the angular encoder in Tilting Device of Converter, real-time follow-up is carried out in converter position, in the time that steel is put in converter, turning angle is about-85 ° ~-110 ° (concrete angle need be judged according to the actual steel angle of putting in scene, can revise), and PLC automatic decision is for putting steel state, start to export the coil of timing signal to time switch K2, time switch K2 contact adhesive, the time switch amount of timing register is connected, and electric time-keeping large-size screen monitors carry out timing; When converter is not in this angular range, stop timing signal output, time switch K2 opens contact, and timing stops.When angle is during at-5 ° ~+5 °, PLC output reset signal is to the coil of reset relay K1, reset relay K1 contact adhesive, and the reset switch amount of timing register is connected, and by timing register back to zero, waits for operation next time.

Take above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on specification sheets, must determine its technical scope according to claim scope.

Claims

1. converter taphole is followed the tracks of an automatic timing unit work-ing life, puts the timing of steel process for converter inclining, and described converter has tiling arrangement, it is characterized in that: comprise

Programmable logic controller: there is timing signal output terminal (Q0.0) and reset signal output terminal (Q0.1), for exporting timing signal and reset signal;

Intermediate relay: comprise time switch (K2) and reset relay (K1);

And timing register: have for controlling timing control end (TC) that timing starts and finish and the reset terminal (RST) for zero clearing;

The coil of described time switch (K2) is connected with the timing signal output terminal (Q0.0) of described programmable logic controller;

The coil of described reset relay (K1) is connected with the reset signal output terminal (Q0.1) of described programmable logic controller;

The normally opened contact of described time switch (K2) is connected with the timing control end (TC) of timing register;

The normally opened contact of described reset relay (K1) is connected with the reset terminal (RST) of timing register.

2. converter taphole as claimed in claim 1 is followed the tracks of automatic timing unit work-ing life, it is characterized in that: described timing register is electric time-keeping large-size screen monitors, and described timing control end (TC) and reset terminal (RST) are passive switch amount signal input part.

3. converter taphole as claimed in claim 1 is followed the tracks of automatic timing unit work-ing life, it is characterized in that: described programmable logic controller is PLC.