Modification method of fan-shaped section phi280 roller system of continuous casting machine

A continuous casting machine segment and roll system technology, which is applied in the field of continuous casting equipment, can solve problems such as increasing equipment repair and maintenance costs, affecting equipment accuracy levels, and overheating of roll bodies, so as to ensure technical performance and equipment accuracy levels, reduce Maintenance and repair costs, effectiveness of addressing water leakage hazards

Inactive Publication Date: 2012-10-10
QINHUANGDAO SHOUQIN METAL MATERIAL +1
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  • Abstract
  • Description
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Problems solved by technology

Due to the unevenness and randomness of water leakage, defects such as subcutaneous cracks appear on the surface of the billet, which not only affects the quality of the billet, but also causes uneven cooling of the roll body due to water leakage, resulting in overheating and deformation of the roll body, affecting the accuracy level of the equipment and reducing The service life of the segment is shortened, and the repair and maintenance costs of the equipment are increased

Method used

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  • Modification method of fan-shaped section phi280 roller system of continuous casting machine
  • Modification method of fan-shaped section phi280 roller system of continuous casting machine

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Effect test

Embodiment 1

[0015] 1. Transformation of the roll system: change the three-section roll structure of the φ280 roll system in the sector section of the continuous casting machine into a two-section three-section roll structure. Among them, the segmented roll with a roll length of 850mm is set independently, and the two rolls with a length of 720mm are set independently. The segmented roll is changed to an integral two-segmented roll, and the two self-aligning bearings (original) in the middle of the two segmented rolls with a length of 720mm are changed to one CARB bearing, and the two sides are still self-aligning bearings;

[0016] 2. Cooling water transformation: Change the segmented roll with a roll length of 850mm and the two segmented rolls with a roll length of 720mm in the φ280 roll system of the continuous casting machine to independent cooling, and the cooling water of the bearing seats on both sides and the The cooling water of the roll body is separated; at the same time, the wat...

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Abstract

A modification method of a fan-shaped section phi280 roller system of a continuous casting machine belongs to the technical field of continuous casting equipment. The method changes a trisection roller structure of the fan-shaped section phi280 roller system of the continuous casting machine into two sections of trisection roller structures, independently cooling the structures, removing water connection sleeves between the existing trisection roller bodies and adopting an external rotating connector to improve axial fixation of the rotating connector. The method has the advantages of resolving water leakage problem, is capable of ensuring technical performance of the fan-shaped section and device accuracy grade, reduces maintenance cost of the fan-shaped section and improves quality of a slab product.

Description

technical field [0001] The invention belongs to the technical field of continuous casting equipment. In particular, it relates to a reforming method for a φ280 roll system in a sector section of a continuous casting machine. Background technique [0002] A domestic steel mill mainly produces medium and thick plates, and has strict requirements on the surface quality of slabs, especially the control of water leakage in the sector of the casting machine. The cooling water system of the 2# casting machine roll system in the steel plant is that the water flows from the water inlet distributor to the drive side bearing seat, passes through the built-in rotary joint, and then reaches the drive side roll body. The drive side roll body is connected to the middle roll body through a water connection sleeve. , the middle roller body is connected to the non-drive side roller body through the water connection sleeve, and forms a complete closed loop through the rotary joint to the retu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/128
Inventor 熊汉斌李学荣崔洪明刘涛
Owner QINHUANGDAO SHOUQIN METAL MATERIAL
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