Fault determining and after-treatment process of infrared sizing of continuous casting machine

A fault judgment, continuous casting machine technology, applied in computer control, instruments, simulators, etc., can solve the problems of long billet cutting, threat to personnel safety, waste of manpower and material resources, etc., to achieve timely supplementary cutting, ensure personnel safety, and easy manipulation effect

Active Publication Date: 2015-06-10
JIANGSU YONGGANG GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem of missed cutting and long branch cutting, if it is light, it needs to be manually cut by the straightening cutter in time, which wastes manpower and material resources, threatens the safety of personnel, and generates unnecessary scrap steel; if the billet is cut too long, the steel transfer machine will be stuck, and the casting flow will be blocked. stop, continuous casting machine stop

Method used

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  • Fault determining and after-treatment process of infrared sizing of continuous casting machine
  • Fault determining and after-treatment process of infrared sizing of continuous casting machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Such as figure 1 The fault judgment and post-processing process of a continuous casting machine infrared cut-to-length cutting device shown, the detailed operation process is as follows:

[0021] 1) Manually set the cutting length L of the billet in the infrared cut-to-length cutting system at the operation site, and the cut-to-length system will issue a blank clamping command after tracking the length and start cutting;

[0022] 2) During the tracking process, the cutting length L of the steel billet is recorded by the PLC, and at the same time, L+20cm is used as the length basis for judging the infrared sizing fault, and the infrared sizing cutting system performs continuous cutting operations;

[0023] 3) The length of the billet reaches L+20cm in the process of advancing, and the infrared sizing cutting system still does not issue a cutting command, which is judged to be a fault of the infrared sizing;

[0024] 4) The infrared fixed-length cutting syst...

Embodiment 2

[0027] Example 2: Such as figure 1 The switching buttons of the common infrared fixed-length cutting system and the following cutting system shown in the present invention are respectively an automatic switching button and a manual switching button, and the described automatic switching button is arranged in the PLC control system, and the described manual switching button is set In terms of cutting and sizing, the operation is flexible and easy to switch. The common and backup systems are one for use and the other for standby, and the cutting system can be automatically switched in case of failure, which basically guarantees zero missed cuts in the sizing cutting of the continuous casting machine.

Embodiment 3

[0028] Example 3: Working example of the present invention: the production data obtained after the enterprise adopts this operating process is compared with the production data before adopting this operating process, and the energy loss and material loss of the enterprise in the production process are obtained as shown in the following table: The following table is There are 2 continuous casting machines and 8 casting strands in the factory area. The billet needs to be manually cut and recorded within 3 months due to the continuous casting machine's sizing failure. The record is the energy loss when receiving the cutting.

[0029]

[0030] From the actual records in the above table, we can know that during the manual cutting operation, the average number of manual cuttings per day (three teams 24 hours) due to cutting long branches and missed cuttings is 25.34 times in three months About; take the value 25 times. At the same time, because 0.4 kg of liquefied petroleum gas...

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PUM

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Abstract

The invention discloses a fault determining and after-treatment process of an infrared sizing cutting device of a continuous casting machine. The process is that a variable frequency pulling rate of a withdrawal and straightening machine can be recorded through a PLC and used as the accumulated length of a billet; the length of the billet is recorded on real time and used as the backup length of the infrared sizing cutting device; if the tracking length of the infrared sizing cutting device exceeds the normal length, and a cutting signal cannot be sent or a fault occurs, a billet cutting device is automatically controlled to cut and alarm; people can organize to repair the infrared sizing cutting system after determining that the infrared cutting system can be directly put into use according to the field condition; therefore, the normal production can be ensured in the process; additional gas and billet loss can be avoided; the personal safety can be ensured to the maximum.

Description

technical field [0001] The utility model patent relates to the technical field of cut-to-length for steelmaking and continuous casting machines. Specifically, in the case of a failure in infrared cut-to-length cutting, the new system can automatically cut off the billet and send an alarm after judging the failure in time, and can be used as a backup cut-to-length Cutting replaces the commonly used infrared cut-to-length cutting system. That is to ensure the smooth progress of continuous casting production, and provide maintenance personnel with sufficient time to repair the original sizing system. Background technique [0002] The lengths currently used in steel plants are all infrared lengths. In daily use, it is found that infrared lengths have certain requirements for the on-site environment. The billet brightness is too low, the lens is blocked by foreign objects, the system is unstable at high temperature and other reasons will cause the billet to be missed or cut long...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/406
CPCG05B19/406G05B2219/33285G05B2219/33304G05B2219/37426
Inventor 姜峰王力玉卢浩郭栋玉朱孟敏
Owner JIANGSU YONGGANG GROUP CO LTD
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