Accurate measurement method of length of continuous casting billet

A technology for precise measurement and continuous casting, applied in the field of metallurgical continuous casting, can solve the problems of inaccurate identification and correction of the cutting length of the slab, so as to improve the measurement accuracy, reduce errors, and improve the yield of slabs. Effect

Active Publication Date: 2018-03-13
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because the billet meter weight will deviate due to the change of steel composition, the invention cannot accurately identify and correct the billet cutting length

Method used

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  • Accurate measurement method of length of continuous casting billet
  • Accurate measurement method of length of continuous casting billet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] When the cutting machine executes the cutting command α n =1,β n =0.9850,l 定尺 =7935mm

[0071] (1) The position detection system of the cart collects the position of the cutting machine when the slab cutting starts. 1 =8mm, the cutting machine position is S at the end of billet cutting 2 =4178mm, and calculate the walking distance S=4170mm;

[0072] (2) The slab length measurement monitoring system collects the length of the continuous casting slab at the beginning of the slab cutting as L 1 =413362mm, the length of continuous casting slab at the end of slab cutting is L 2 =417595mm, the measurement value change L=4233mm of the length measuring system of the length measuring wheel;

[0073] (3) Judgment correction module, |L-S|=|4233-4170|=63≥50, and it is confirmed that the length measuring wheel is not a standard length measuring wheel used on the new line, then correct the calculation parameters of the slab length measurement monitoring system At the end of c...

Embodiment 2

[0076] When the cutting machine executes the cutting command α n =1,β n =0.9755,l 定尺 =9526mm

[0077] (1) The position detection system of the cart collects the position of the cutting machine when the slab cutting starts. 1 =8mm, the cutting machine position is S at the end of billet cutting 2 =4178mm, and calculate the walking distance S=5720mm;

[0078] (2) The slab length measurement monitoring system collects the length of the continuous casting slab at the beginning of the slab cutting as L 1 =2215mm, the length of continuous casting slab at the end of slab cutting is L 2 =7877mm, the measurement value change L=5662mm of the length measuring system of the length measuring wheel;

[0079] (3) Judgment and correction module, |L-S|=|5662-5720|=58≥50, and it is confirmed that the length measuring wheel is the standard length measuring wheel used on the new line, then the calculation parameters of the cart position detection system are corrected At the end of cutting,...

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Abstract

The invention provides an accurate measurement method of the length of a continuous casting billet. The method comprises the steps of (1) collecting the cart position S1 under the main pressure of a cutting machine when the casting billet starts to be cut by a cart position detection system of the cutting machine, collecting the cart position S2 when the casting billet stops cutting, and collecting the walking distance S which is equal to (S2-S1) of the cutting machine; (2) collecting the length L1 of the continuous casting billet under the main pressure of the cutting machine when the castingbillet starts to be cut by a length measurement monitoring system of the casting billet, collecting the length L2 of the continuous casting billet when the casting billet stops cutting, and collecting the measurement variation L which is equal to (L2-L1) of a length measurement system of a length measurement wheel; (3) judging and correcting; (4) calculating the length of the billet; and (5) giving an alarm for abnormity of length variation of the billet. According to the accurate measurement method, a measurement error generated by mechanical wear of the length measurement wheel during use can be avoided, and the length control requirement of the billet is satisfied.

Description

Technical field: [0001] The invention relates to a method for accurately measuring the length of a continuous casting slab, belonging to the technical field of metallurgical continuous casting. Background technique: [0002] In the continuous casting cutting area, the continuously cast slabs are cut into the required length. The cutting machine is mainly composed of a slab length measurement monitoring system, a cart traveling device, a cart position detection system, a slab synchronous traveling device, The cutting torch traveling device, cutting torch lifting device, cutting torch approach detection device, energy medium supply device, cart traveling track, equipment cooling and cutting slag granulation and other systems are composed. Due to the influence of factors such as high temperature and dust in the production environment of the metallurgical industry, the slab length measurement monitoring system generally uses the rotation of the length measurement wheel when it c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/16
Inventor 黄海郑雷王桂兵
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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