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Roller cooling method and device

A roll and cooling cover technology, applied in the direction of roll, metal rolling, metal rolling, etc., can solve the problems of slow cooling speed, uneven cooling, and difficulty in obtaining the initial roll shape, so as to increase the cooling speed, improve production efficiency, The effect of improving uniformity

Active Publication Date: 2016-10-26
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method and device for cooling a roll, which solves or partially solves the problem of uneven cooling and different thermal deformations of the roll body in the prior art, which makes it difficult to obtain the desired initial value of the process system due to the influence of this during grinding. Roll shape, technical problems of slow cooling

Method used

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Embodiment Construction

[0022] see figure 1 A method for cooling a roll provided in an embodiment of the present invention comprises the following steps:

[0023] Step 1, the roll to be cooled 6 is transported into the cooling cover 2 by the roll transport mechanism 4 , and the cooling cover 2 is fixed on the support mechanism 1 .

[0024] In step 2, the nozzles of the U-shaped cooling header 3 in the cooling cover 2 are opened, and the nozzles perform continuous encircling water spray cooling on the surface of the roll to be cooled 6 stacked on the roll transport mechanism 4 .

[0025] Step 3, open the exhaust mechanism 5 on the cooling cover 2, and the exhaust mechanism 5 discharges the water vapor generated when the roll 6 is cooled through the exhaust pipe 2-1 on the cooling cover 2 .

[0026] Step 4, when the temperature of the roll 6 cools down to the required temperature, close the nozzles of the U-shaped cooling header 3 and the exhaust mechanism 5, and stop water spray cooling and air circ...

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Abstract

The invention discloses a roller cooling method and device, and belongs to the technical field of hot rolling. The roller cooling device comprises a supporting mechanism, wherein a cooling cover is arranged on the supporting mechanism; an exhaust pipeline is arranged on the cooling cover; U-shaped cooling manifolds are arranged in the cooling cover; the U-shaped cooling manifolds are connected with the supporting mechanism; nozzles are arranged on the U-shaped cooling manifolds; roller conveying mechanisms are connected with the supporting mechanism and arranged under the U-shaped cooling manifolds; an exhaust mechanism is arranged on the cooling cover; and cooling fans are arranged above the U-shaped cooling manifolds respectively. The roller cooling method and device provided by the invention can increase the cooling velocity of a roller which is dismounted from a rolling mill, reduces influence of thermal deflection caused by uneven cooling of the roller, and thus improves the grinding accuracy of a working roller to obtain an original roller shape expected by a process system.

Description

technical field [0001] The invention relates to the technical field of hot rolling, in particular to a method and device for cooling a roll. Background technique [0002] The roll shape is one of the main factors determining the quality of the hot-rolled strip shape (flatness and cross-sectional shape). With the development of hot-rolled strip steel technology, the requirements for strip shape precision are getting higher and higher. Accurate work roll initial roll shape is the premise of strip shape control. Due to the high-temperature and fast-paced characteristics of hot rolling production, the rolls always have unknown temperature differences caused by the temperature difference along the direction of the roll body during a complete service cycle (service on the machine, cooling off the machine, disassembly, grinding, assembly to the machine again). The size of the thermal deformation makes it difficult to obtain the initial roll shape expected by the process system du...

Claims

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Application Information

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IPC IPC(8): B21B27/10
CPCB21B27/10B21B2027/103
Inventor 卢晓毅周政王晓东毕国喜王洪鹏王建功刘靖群彭振伟
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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