Air mist cooling device for 2+8 roller combined type thick slab big screwdown casting-rolling machine

A casting and rolling mill and combined technology, which is applied in the field of aerosol cooling devices for 2+8-roll combined thick slab and large-reduction casting and rolling mills, can solve problems such as cracks and deformation of large-reduction rolls, and reduce the working thermal crown. , Solve deformation, improve the effect of cooling effect

Pending Publication Date: 2019-09-06
BEIJING SHOUGANG INT ENG TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a 2+8-roll combined thick slab large-reduction casting mil

Method used

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  • Air mist cooling device for 2+8 roller combined type thick slab big screwdown casting-rolling machine
  • Air mist cooling device for 2+8 roller combined type thick slab big screwdown casting-rolling machine
  • Air mist cooling device for 2+8 roller combined type thick slab big screwdown casting-rolling machine

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Embodiment 1

[0022] An aerosol cooling device for a 2+8-roll combined thick slab large-reduction casting and rolling mill, including upper water-cooled beam 1, upper guard plate 2, upper sealing water plate 3, water spray ring 4, lower guard plate 5, and lower water cooling The beam 6 and the lower sealing water plate 7; one end of the upper guard plate 2 is fixed to the upper water-cooled beam 1 by bolts, and the other end is connected with the bearing seat of the casting mill; the upper sealing water plate 3 and the water spray ring 4 are respectively located in the casting mill On the bearing seats at the roll diameters on both sides; there are upper sealing water plate 3 and lower sealing water plate 7 between the water spray ring 4 and the large reduction roll of the casting mill to ensure that the water sprayed from the water spray ring 4 passes through the upper roller after cooling After the diameter, it flows to the diameter of the lower roll without flowing onto the cast billet; on...

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Abstract

The invention provides an air mist cooling device for a 2+8 roller combined type thick slab big screwdown casting-rolling machine and belongs to the technical field of slab continuous casting production. The air mist cooling device for the 2+8 roller combined type thick slab big screwdown casting-rolling machine comprises an upper water cooling beam, an upper protective plate, an upper water sealing plate, a water spraying ring, a lower protective plate, a lower water cooling beam and a lower water sealing plate. One end of the upper protective plate is fixed to the upper water cooling beam through bolts. The upper water sealing plate and the water spraying ring are located on bearing bases in roller diameter positions on two sides of a casting-rolling machine respectively. The upper watersealing plate and the lower water sealing plate are located between the water spraying ring and a big screwdown roller of the casting-rolling machine. One end of the lower protective plate is fixed to the lower water cooling beam through bolts, and the other end of the lower protective plate is connected with the bearing bases of the casting-rolling machine. The lower water sealing plate is installed on the bearing bases in the roller diameter positions on two sides of the casting-rolling machine. The air mist cooling device of the 2+8 roller combined type thick slab big screwdown casting-rolling machine has the advantages that an air mist cooling manner is adopted; and problems such as big screwdown roller deforming and cracking brought about by poor cooling are effectively solved.

Description

Technical field [0001] The invention belongs to the technical field of slab continuous casting production, and particularly relates to a 2+8-roll combined thick slab large reduction casting and rolling mill aerosol cooling device. Background technique [0002] The 2+8-roll combined thick slab high-reduction casting and rolling mill can solve the internal looseness and shrinkage defects of thick slabs, improve the density of continuous casting slabs, and realize the reduction of thick plates and large-size profiles under the condition of low rolling reduction ratio. Stable production. Compared with the rough rolling mill roll, the heating of the large reduction roll of the casting rolling mill has the following characteristics: 1. Long continuous contact time. The drawing speed of the thick slab continuous caster is generally 0.5m / s~1.25m / min, so the same part of the large reduction roll has a longer contact time with the steel plate. 2. The arc length of the contact arc relativ...

Claims

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Application Information

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IPC IPC(8): B22D11/124
CPCB22D11/1206B22D11/124
Inventor 张乐峰杨雄英康永林朱国明张富华范康平张晨
Owner BEIJING SHOUGANG INT ENG TECH
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