Method for preventing strip steel from being folded in coiling area

A folding method, technology of strip steel, applied in the field of steel rolling process

Active Publication Date: 2021-07-06
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The direction of the purge water is blown towards the direction of the downstream coiler. Through the decomposition of the force, the downward vertical force of the 10kg purge water is offset by the upward force of the strip head, which solves the problem of the upturned coiling of the strip head. time folding problem

Method used

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  • Method for preventing strip steel from being folded in coiling area
  • Method for preventing strip steel from being folded in coiling area
  • Method for preventing strip steel from being folded in coiling area

Examples

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Embodiment 1

[0026] Example 1: see figure 1 , a method for preventing strip steel folding in a coiling region, said method comprising the steps of:

[0027] Step 1: Design and installation of equipment;

[0028] Step 2: On-site limit measurement data;

[0029] Step 3: Control program implementation.

[0030] Said step 1: design and installation of equipment, specifically as follows:

[0031] 1) Weld several nozzles equidistantly on the main header, the number is generally 3-8, as required, such as figure 2It is shown in the "Patented Equipment Design Drawing of the Invention". The nozzle design meets the following conditions: the blowing point of the blowing water must be above the output roller table, so as to avoid driving the strip head into the gap of the roller table. The direction of the middle nozzle coincides with the rolling center line, and the other nozzles are arranged in parallel at equal intervals to ensure uniform lateral force on the strip head. The spacing between e...

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Abstract

The invention relates to a method for preventing strip steel from being folded in a coiling area. According to the technical scheme, a group of 10 kg purging water is added between an upstream coiling machine and a downstream coiling machine from a main collecting pipe through a hose; and the existing equipment is utilized, so that the modification cost is low, the structure is simple, and the realization is easy. The purging water is purged to the direction towards the downstream coiling machine; and through decomposition of force, the downward vertical force of 10 kg of purging water after decomposition is counteracted with the upward force of the end of strip steel, and the problem that the end of the strip steel is folded when the end of the strip steel is upwarped and coiled is solved. According to the method provided by the invention, a group of 10 kg purging water is added behind the upstream coiling machine; purging is performed in the direction towards the downstream coiling machine; when the ends of strip steel of different specifications pass through the area, pressure of the 10 kg purging water at different angles is borne, and is counteracted with upward impact force caused by passing through an opened and closed door; and the problem that the end of the strip steel is upwarped when the strip steel passes through the opened or closed door is effectively avoided.

Description

technical field [0001] The invention relates to a method, in particular to a method for preventing strip steel folding in a coiling area, and belongs to the technical field of steel rolling technology. Background technique [0002] Generally, there are two coilers in the hot rolling production line, and the head of the strip needs to have a lead-in device to smoothly bite into the coiler. The hot continuous rolling production line basically installs opening and closing doors behind the pinch rolls, such as figure 1 As shown in the "Equipment Layout of Coiling Area", and the height of the opening and closing door is lower than the horizontal line of the production line during installation, when the coiler bites the steel, the door of the opening and closing door is opened to help the coiler complete the steel bite smoothly. Before the downstream coiler bites the steel, the strip will pass through the opening and closing door of the upstream coiler. Due to the drop between th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B15/00B21B45/02B21C47/02
CPCB21B15/00B21B45/02B21C47/02B21B2015/0057Y02P90/02
Inventor 汪明新李美华胡博张萃罗克力陈高林
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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