OCR Text |
Show 11 Result • Energy saving: Energy was saved 10% by setting up optimum air ratio. • Quality : Stabilized furnace atmosphere eliminated discoloration of strip within the furnace. In addition, it reduced defect rate of treated str ip, which is caused by adhes ion of foreign matters to str ip. • Productivity : Stabilized furnace atmosphere permitted faster line speed and thereby improved the productivity by 10%. : Stabilized furnace atmosphere was effective to reduce both cycles of rolI cleaning and pick Iing solution refi I Iing. : Air ratio can be changed by switch operation only. This improved the operability. • Maintenance • OperabiIity Tab I e 2 C0% under each setup air Condition (T) Target % 1 2. 5±0. 2 In existing 0. 8-2. 4 equi pment % When IBS mounted %| 2.3-2.6 ratio conditi ® 5. 0±0. 5 5.5-8.0 4.8-5.2 on Table 3 C0% incurred by variation of combustion rate Combustion rate Target % In existing equipment % When IBS mounted % 20& 5. 0±0. 5 Approx. 7 4.8-5.2 100% 5. 0±0. 5 Approx. 3 4.8-5.2 7.Conclusion As stated above, IBS could be developed with highly reliable, more accurate contro I mechan i sm and app I i cat i on of var i ous i deas to the computat i on and contro I logic. Therefore we are promoting development of the system for appl ication to next-generation burning equipment by using part of IBS functions. It will be intended to connect Chugai Ro di rect ly with a I I users via pub I ic ci rcuits, ISDN, and Internet to perfectly support combustion control. This system will ensure continued ideal combustion condition, fully considering preservation of the g I oba I env i ronment. Need I ess to say, i t w i I I br i ng a great effect i n energy sav i ng, too. |