Rapid start method for vertical continuous annealing furnace

A continuous annealing furnace, vertical technology, applied in the direction of furnaces, heat treatment furnaces, furnace types, etc., can solve the problems affecting the production rhythm and unit capacity, long furnace start-up time, etc., to shorten the furnace start-up time, increase unit capacity, reduce The effect of mass loss

Active Publication Date: 2018-05-25
SHANGHAI MEISHAN IRON & STEEL CO LTD
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method for quick start-up of a vertical continuous annealing furnace, which solves the problem in the prior art that the vertical continuous annealing furnace takes a long time to start up after being shut down for maintenance, which affects the production rhythm and the production capacity of the unit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be further illustrated below in conjunction with specific embodiments, and it should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0028] A method for quickly starting a vertical continuous annealing furnace, the method comprising:

[0029] After the vertical continuous annealing furnace is overhauled, confirm the starting conditions of the vertical continuous annealing furnace; purge the atmosphere in the vertical continuous annealing furnace with pure nitrogen; heat up the vertical continuous annealing furnace; The atmosphere in the annealing furnace is purged with hydrogen; the strip steel of the vertical continuous annealing furnace is controlled to start operation.

[0030] The steps for confirming the start-up conditions of the vertical continuous annealing furnace are as follows: confirm that the top cover and bo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a rapid start method for a vertical continuous annealing furnace. By adoption of the rapid start method for the vertical continuous annealing furnace, the problem that in theprior art, after a vertical continuous annealing furnace is stopped to be maintained, the furnace start time is long, and consequentially, the production rhythm and productivity are affected is solved. The rapid start method for the vertical continuous annealing furnace comprises the steps that after the vertical continuous annealing furnace is maintained, start conditions of the vertical continuous annealing furnace are confirmed; pure-nitrogen purging is conducted on the inside atmosphere of the vertical continuous annealing furnace; the vertical continuous annealing furnace is heated; hydrogen-containing purging is conducted on the inside atmosphere of the vertical continuous annealing furnace; and strip steel of the vertical continuous annealing furnace is controlled to start to operate. The rapid start method for the vertical continuous annealing furnace is simple and easy to operate, and the production efficiency and productivity of the vertical continuous annealing furnace are effectively improved.

Description

technical field [0001] The invention relates to the technical field of a vertical continuous annealing furnace, in particular to a method for quickly starting a vertical continuous annealing furnace. Background technique [0002] The continuous annealing furnace is used to recrystallize and anneal the work-hardened strip steel after cold rolling, improve the microstructure, improve plasticity and stamping formability, and ensure that the surface is not oxidized. After continuous annealing combines several separate processes of bell annealing into one unit, the production cycle is shortened from the original 10 days to at most one hour, the production material preparation is greatly reduced, the production process is simplified, the management is convenient, and the productivity is greatly improved. [0003] The vertical continuous annealing furnace is mainly used for the annealing production of tin-plated raw plates. The vertical continuous annealing furnace consists of a pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/56
Inventor 刘洪包祥明徐烨明
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap