Process for combined continuous casting of double sections

A continuous casting process and cross-section technology, which is applied in the field of double-section combined continuous casting technology, can solve problems such as the inability to realize hot delivery and hot charging of billets, restricting the production capacity of rolled products, and stopping and waiting for materials, so as to improve capital turnover and reduce production. Time and energy saving effects

Inactive Publication Date: 2011-04-06
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This production organization mode not only cannot realize the hot delivery and hot charging of cast slabs, resulting in a great waste of energy, but also often shuts down and waits for materials in the rolling process, which restricts the improvement of rolling capacity.

Method used

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  • Process for combined continuous casting of double sections
  • Process for combined continuous casting of double sections
  • Process for combined continuous casting of double sections

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Embodiment Construction

[0025] Embodiment: six-machine six-strand billet continuous casting machine, the production section is 180mm×180mm, 240mm×240mm, and the steel output of the converter is 120 tons / furnace. The corresponding rolling production lines are as follows: large steel rolling production line, rolling specifications φ75mm~φ150mm, using 240mm×240mm billets, production capacity 1400~1800t / day; medium-sized production line, rolling specifications φ45mm~φ75mm, using 180mm×180mm billets, production capacity 800~1000t / day; small-scale production line, rolling specification φ25mm~φ50mm, using 180mm×180mm billet, production capacity 800~1000t / day. The daily output of the continuous casting machine is 3,600-4,200 tons, and each section is continuously produced for 3-5 days. With a single section, any production line cannot digest the billets produced in time, and cannot realize hot delivery and hot charging of the billets, resulting in a great waste of energy; At the same time, a large area is re...

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PUM

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Abstract

The invention relates to a process for the combined continuous casting of double sections, belonging to the technical field of continuous casting in steel production. The process is as follows: 1) a multimachine multi-strand casting machine is divided into such two working sections as an A section and a B section according to the number of machine strands; crystallizers, sectorial segments and nozzles of different specifications and different technological parameters are used for processing the two sections; and 2) a billet ejection system provided with a pusher dog of a billet dividing machine is used for the bidirectional ejection of billets towards both sides from the middle, and casting billets of the two sections are separately piled by two travelling cranes. The pulling rate and thenumber of the opened machine strands are set, and the partial difference of the billet passing volumes of the two sections is controlled to be within plus or minus 8 according to the principle of basic balance of the general billet passing volumes of the two sections. The invention has the advantages of high production efficiency, capability of rolling rolled products of different specifications and low energy consumption.

Description

technical field [0001] The invention relates to a double-section combined continuous casting process, which belongs to the technical field of continuous casting for iron and steel production. Background technique [0002] At present, the converter and continuous casting of newly-built iron and steel enterprises at home and abroad have undergone great changes. The volume of the original converter is generally below 60t, but the volume of the converter of the newly-built iron and steel enterprise is generally above 100t. The continuous casting machine that matches it Great changes have also taken place, from the original 3 streams and 4 streams to the current 6 streams, 8 streams or even more streams. The production pattern of large converters with multi-strand continuous casting machines has been initially formed. At present, the production capacity of most casting machines has doubled compared with the original one, and the maintenance time of equipment has also been doubled...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/103
Inventor 吕铭王键陈民吕长海刘平侯光合陈良张永青费燕陈军胜焦玉莉朱波张继军尹崇丽谢韵平魏潇
Owner SHANDONG IRON & STEEL CO LTD
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