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A spiral nozzle, a spiral air injection device and a spiral air injection method

A spiral nozzle and spiral technology, applied in the field of metal rolling, can solve problems affecting appearance quality and use, achieve appearance quality and performance guarantee, improve tangential kinetic energy, and improve overall performance

Active Publication Date: 2019-01-29
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a spiral nozzle, a spiral air injection device and a spiral air injection method, which are used to solve the problem that Fe is easily produced on the surface of the rolled material in the metal rolling process. 2 o 3 The impact of appearance quality and use problems

Method used

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  • A spiral nozzle, a spiral air injection device and a spiral air injection method
  • A spiral nozzle, a spiral air injection device and a spiral air injection method
  • A spiral nozzle, a spiral air injection device and a spiral air injection method

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Embodiment 1

[0026] like figure 1 As shown, this embodiment provides a spiral nozzle 1, which includes: a nozzle body 2; and an adjustable spiral nozzle 3 arranged circumferentially on the outer wall of the nozzle body 1. figure 2 and image 3 That is to say, the structure of the adjustable helical nozzle is shown. The nozzle body is preferably tapered. At this time, the adjustable helical nozzle is preferably helical tangential holes evenly distributed along the cone. The helical tangential hole is conducive to forming a high-speed tangential internal swirling airflow.

Embodiment 2

[0028] The spiral nozzle in the first embodiment is used in the metal rolling process, especially in steel rolling. In the second embodiment, the spiral nozzle is used to design a spiral air injection device.

[0029] like Figure 4 As shown, the spiral jet device of the present embodiment includes: a spiral nozzle 1; an air injection port 4, which is connected to the gas outlet of the spiral nozzle; . Wherein, the spiral nozzle 1 is used to inject the gas medium in the air inlet chamber 5 into the gas injection port 4 with fixed tangential kinetic energy through the adjustable spiral nozzle 3 on the spiral nozzle.

[0030] The spiral jet device needs to be used with the installation bracket 6 , and the nozzle body of the spiral nozzle is preferably conical, which is connected to the installation bracket 6 through a connecting fixture 7 . Both the air intake chamber 5 and the air injection port 4 are placed on the mounting bracket 6 , and the air intake chamber 5 is also con...

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Abstract

The invention relates to a spiral nozzle, a spiral air spraying device and a spiral air spraying method. The spiral nozzle comprises a nozzle body and an adjustable spiral spray hole arranged along the circumferential direction of the outer wall of the nozzle body. The spiral air spraying device comprises the spiral nozzle, an air spraying hole connected with an air spraying outlet of the spiral nozzle and an air inlet chamber, wherein the air inlet chamber is communicated with an inner cavity formed by the spiral nozzle, the spiral nozzle is used for spraying a gas medium with a fixed tangential kinetic energy in the air inelt chamber into the air spraying hole by virtue of the adjustable spiral spray hole in the spiral nozzle. The airflow with relatively high tangential kinetic energy can enter into the air spraying hole along the tangential direction with an adjustable angle under a relatively high pressure condition by virtue of the adjustable spiral spray hole, the tangential kinetic energy of high-speed tangential internal-rotation airflow is greatly improved by virtue of tangential flowing of the airflow, and the scavenging activity of the high-speed air and the contact area of steel surfaces are improved, so that the machinery water and the crystal water separated at a high temperature on the steel surfaces are effectively removed.

Description

technical field [0001] The invention relates to the field of metal rolling, in particular to a spiral nozzle, a spiral air injection device and a spiral air injection method used in the bar rolling production process. Background technique [0002] The core of the metal rolling process, especially the steel rolling process, is to improve the strength, toughness and welding performance of the steel by controlling the heating temperature, rolling process, cooling conditions and other process parameters during the rolling process. The deformation temperature, deformation degree, deformation speed and other parameters in the manufacturing process can refine the grain of steel, improve the surface quality while improving the strength, and other properties are also significantly improved, so as to realize the purpose of fully tapping the potential of steel materials. The rolling temperature is controlled through the reasonable arrangement of water-cooling equipment and the adjustme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B1/02B21B45/02
CPCB05B1/02B21B45/02
Inventor 朱建国陈昕董淑霞郭淼王纪元陈洁何大荣奚晓东惠栋赵英杰王文中刘鹏翔肖存
Owner CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP