| 摘要 |
PURPOSE:To permit the easy handling of the coefft. of heat transfer and to control a continuous heating furnace so as to heat surely billets to a target temp. by determining set furnace temp. in accordance with furnace temp., future billet temp., future furnace temp. and target billet temp. CONSTITUTION:The preset temp. and billet temp. are first calculated by present temp. calculation 1 in a function part 106 to set the furnace temp. with the billet information and actual fuel flow rate from an operation information control part 102 and a fuel flow rate control part 103 as inputs in the continuous heating furnace 10. The future furnace temp. and billet temp. are calculated in accordance with such calculation and a heating-up pattern is determined in heating-up pattern calculation by taking energy economization, etc. into consideration. The result of the calculations by present temp. calculation 1, future temp. calculation 2 and heating-up pattern calculation 3 are inputted and the set value of the furnace temp. is determined by furnace temp. setting calculation 4. The function part 106 controls the fuel flow rate by heating with a burner 105 so that a furnace temp. measuring part 104 attains the set value in the above-mentioned manner.
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