The Research And Improving On Heating Control Technology Of CAL

Recently, the economy had a fast develop in our country, the needing of mill coil is increasing in cars, household electrical appliances trade, so treat process after cold mill had a great develop. Because of its high production, good quality, short production cycle and low cost, Continuous Annealing line gets more and more attention by steel&iron companies.As the core equipment of CAL, Continuous Annealing furnace has big size, many devices and complex control process, so most technology about furnace still need introduced from abroad. Strip heating technique integrates the heating devices management, combustion control, furnace temperature control, and is very important and hard to understand.This thesis is mainly talking about the Annealing furnace of Beijing SHOUGANG cold mill Ltd.,, base on study CAL’s process, Through researching the control program and documents of the furnace heating detailed, we have learned the ropes of furnace heating system’ structure and control methods, according to the problems appeared during the production,we made a deep analysis and improvement.The main research contents as following,1.development and feature about CAL and heating technique2.the control system of furnace, automation, HMI, network3.make research for heating control system and temperature control.4.through lead in fuzzy control to improve temperature and flow control characteristic.through lead in the ON/OFF control, made improvement for low load and low temperature control.