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A high-line outlet back-blowing device

A back blowing and exporting technology, which is applied in the directions of guiding/positioning/alignment devices, metal rolling, manufacturing tools, etc., can solve problems affecting production efficiency, violation, and broken ends of rolled parts, and achieve the overall structural design Ingenious, on-site assembly and replacement are convenient, and the effect of strong practicability

Active Publication Date: 2017-01-11
JIANGSU YONGGANG GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, high-speed rolling will also bring many problems
Stacking of steel in the reducing and sizing area occurs from time to time. Many of the reasons are caused by the high-speed collision of the small-sized medium-high carbon steel rolled piece with the reducing and sizing roll ring and guide groove during the rolling process. In addition, the water cooling of the water tank Increases the brittleness of medium and high carbon steel, and eventually it is easy to cause chipping at the head of the rolled piece and cause piles of steel
At present, in order to avoid this situation, the final rolling speed is basically sacrificed to avoid the occurrence of steel stacking accidents, which greatly affects the improvement of production efficiency and violates the original intention of the production manager to introduce advanced equipment

Method used

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  • A high-line outlet back-blowing device
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  • A high-line outlet back-blowing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1 : see figure 1 , a high-line outlet back-blowing device, the back-blowing device is improved from the high-line 30# rolling mill outlet guide groove, the guide groove is composed of the first outlet upper guide plate, the second outlet upper guide plate and the outlet lower guide plate , the lower guide plate at the outlet also plays the role of the base, the upper guide plate and the lower guide plate are fixed by iron wires, and a stepped round hole 1 is arranged on the upper guide plate of the first outlet, the stepped round hole is located at the end of the first outlet guide plate, and the diameter of the round hole is Φ4mm, the diameter of the inner step hole is Φ6mm, 90° to the slope, the length of the round hole reaches the guide groove, and is 58-62° to the direction of the rolling piece, and the round hole of the upper guide plate on the outlet passes through the joint Connect the compressed air, the air flow direction of the compressed air is opp...

Embodiment 2

[0020] Example 2 : As an improvement of the present invention, the diameter of the circular hole is Φ5mm, and the diameter of the stepped hole is Φ7mm. The stepped circular hole extends to the guide groove, and its axis direction is 60° to the horizontal direction, and its axis direction is perpendicular to Bevel on the end of the guide plate on the first outlet. The rest of the structures and advantages are exactly the same as in Embodiment 1.

[0021] This patent is applicable to the high-speed line and high-speed area, including pre-finishing, finishing, reducing and sizing, etc. It can be installed at the exit of the last stand rolling mill to prevent the cooling water on this section from being carried out of the guide groove by the steel bars. Effectively avoid broken ends at the head of the steel bar, improve the precision of controlled rolling, effectively avoid unnecessary secondary cooling, and improve the precision of controlled cooling.

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PUM

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Abstract

The invention relates to a highline outlet reverse air blowing device. The highline outlet reverse air blowing device is characterized in that the reverse air blowing device is formed through improvement on a guide groove of a highline 30# rolling mill outlet, the guide groove consists of a first outlet upper guide plate, a second outlet upper guide plate and an outlet lower guide plate, a stepped round hole is machined in the first outlet upper guide plate, penetrates through the guide groove position to extend to the outside, and compressed air is led to the round hole through a common oil gas connector. Compared with the prior art, the highline outlet reverse air blowing device has the advantages that the highline outlet reverse air blowing device is ingenious in structural design, good in practicability and convenient to assemble and replace in a site; the guide groove provided in the technical scheme is a combined guide groove and consists of the first outlet upper guide plate, the second outlet upper guide plate and the outlet lower guide plate. The round hole is formed in the first outlet upper guide plate, and connection is achieved by means of the compressed air in the site and a connecting valve, and finally a reverse air blowing role is played on water in the guide groove, so that the water for sizing decrease can b e prevented from being carried way from the guide groove.

Description

technical field [0001] The invention relates to a back blowing device, in particular to a high line outlet back blowing device, which belongs to the technical field of steel rolling equipment. Background technique [0002] Reducing and sizing is a necessary equipment for high-speed wire rod mills. The current reducing and sizing can not only make the dimensional accuracy of the rolled piece higher and the out-of-roundness smaller, but more importantly, it is of great help to increase the speed. This is also the main reason why the speed of high-speed wire rod mills for rolling small sizes can exceed 100m / s. However, high-speed rolling also brings many problems. Stacking of steel in the reducing and sizing area occurs from time to time. Many of the reasons are due to the high-speed collision of the small-sized medium-high carbon steel rolled piece with the reducing and sizing roll ring and guide groove during the rolling process. In addition, the water cooling of the water t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B28/00B21B39/16B21B1/16
Inventor 王鲁义吕新屈小波柯章伟杨帆蔺禄寿顾腾飞
Owner JIANGSU YONGGANG GROUP CO LTD