Rolling mill laminar flow uniform cooling nozzle

A uniform cooling and nozzle technology, which is applied in the workpiece cooling device, metal rolling, metal rolling, etc., can solve the problems of insufficient spraying force, poor cooling effect, waste of cooling cost, etc., to achieve small flow path resistance, Simple structure and reduced cooling cost

Inactive Publication Date: 2017-05-31
JIANGSU BOJI SPRAYING SYST HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Laminar flow cooling requires nozzles, and general nozzles are not strong enough to spray, the cooling effect is not good, and cooling costs are wasted

Method used

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  • Rolling mill laminar flow uniform cooling nozzle

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Effect test

Embodiment Construction

[0012] A laminar flow uniform cooling nozzle for a rolling mill, comprising a nozzle 1 and a flow channel connection 2, the rear end of the nozzle 1 is fixedly installed on the front end of the flow channel connection 2, the nozzle channel is connected with the flow channel connection channel, and the nozzle channel is divided into Rear passage 3, transition passage 4 and injection passage 5, the inner diameter of rear passage 3 is greater than the diameter of injection passage 5, and described transition passage 4 is a tapered passage, and the inner diameter of nozzle passage is identical with the inner diameter of flow path connection passage; There is a step in the end, and the front end of the flow channel joint is located at the step; the inner wall of the nozzle channel and the inner wall of the flow channel connection channel are smooth surfaces.

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Abstract

The invention relates to a rolling mill laminar flow uniform cooling nozzle. The rolling mill laminar flow uniform cooling nozzle comprises a nozzle body and a runner connecting pipe, and the back end of the nozzle body is fixedly installed at the front end of the runner connecting pipe; and a nozzle channel is communicated with a runner connecting pipe channel, the nozzle channel is divided into a back channel, a transition channel and a jetting channel, the inner diameter of the back channel is larger than the diameter of the jetting channel, the transition channel is a taper channel, and the inner diameter of the nozzle channel is the same as the inner diameter of the runner connecting pipe channel. The rolling mill laminar flow uniform cooling nozzle is simple in structure, small in runner blocking force, high in jet flow intensity and good in cooling effect, and therefore the cooling cost is reduced.

Description

technical field [0001] The invention designs a rolling mill laminar flow uniform cooling nozzle. Background technique [0002] The post-rolling cooling device for hot-rolled strip steel is one of the key links in the production of hot-rolled strip steel. The speed, crimping temperature and its control precision directly affect the quality and performance of the final product. At present, the post-rolling cooling device of strip steel is developing rapidly, especially in the 1980s. Among them, the laminar flow cooling has the advantages of wide processing range of products and simple equipment maintenance. Laminar cooling requires nozzles, and general nozzles are not strong enough to spray, the cooling effect is not good, and cooling costs are wasted. Contents of the invention [0003] In view of the above defects, the object of the present invention is to provide a rolling mill laminar uniform cooling nozzle with simple structure, small retarding force, high jet intensit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B45/02
CPCB21B45/0218B21B45/0233
Inventor 管昌勇毛小明孔军马红军冯俊周永军
Owner JIANGSU BOJI SPRAYING SYST HLDG CO LTD
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