| 1. | Practice of raising baosteel no . 4 bf ' s coal injection rate rapidly 高炉快速提高煤比生产实践 |
| 2. | Then a self - searching optimal control method for enhancing thermal efficiency is obtained through the optimal wind - coal ratio . then a computer control system for economic combustion in coal - fired boiler is designed 通过实现燃煤锅炉最佳风煤比,得出提高锅炉热效率的自寻优控制方案,设计出了用于燃煤锅炉经济燃烧的计算机控制系统。 |
| 3. | Then a combustion evolution optimizing system based on the radiant energy measuring was built , economical boiler combustion adjustment was carried out , under the combined action of a controller based on fuzzy self - optimizing of fume 在此基础上,建立了基于辐射能检测的燃烧进化优化系统,通过烟气含氧量与炉膛总辐射能的模糊自寻优控制器和风煤比进化优化器组成的燃烧优化回路的共同作用,对锅炉进行燃烧经济性调节,达到燃烧优化控制的目的。 |
| 4. | Abstract : very excellent results have been achieved in injection of coaluniformlly by means of implementing three technical measures under the current conditions , thus laying a very solid foundation for raising the coal injection ratio , stabilizing the gas flow of bf , and gaining better economical efficiencies 文摘:介绍了在现有的条件下,通过三种措施的实施,取得了煤粉的均匀喷吹,为进一步提高煤比,稳定高炉煤气流,并获得更好的经济效益打下了基础。 |
| 5. | It shows that with a metallization degree of burden more than 40 per cent , blast furnace can t be operated with oxygen enriched blast . combining lower burden metallization degree with oxygen enriched blast and coal injection , higher coal injection rate and higher productivity can be obtained . by use of higher burden metallization degree lower coke rate can be obtained than oxygen enriched blast and coal injection 结果表明:炉料金属化率达到40后,高炉不能富氧操作;较低的炉料金属化率与富氧喷煤相结合,能够获得更大的喷煤比和更高的产量;使用金属化率较高的炉料,能够比富氧喷煤达到更低的焦比。 |
| 6. | These results very close to engineering fact , then analyzed mostly factors : oxygen - coal mole ratio which affect cws gasification process and coal gas component on outlet , also advanced any measures to increase coal gas effective component ( co + h2 ) on outlet 得到了气化炉内的温度场、流场、浓度场以及出口粗煤气成分,其结果与工程实际相比非常接近;并利用得到的结果分析了影响水煤浆气化过程和出口煤气成分的主要因素即氧煤比,提出了提高出口煤气有效成分( co + h2 )的措施。 |
| 7. | The equilibrium working temperature of the gasifier and the composition of the outlet syngas ( short for synthesis gas ) at this temperature were calculated by solving the chemical equilibrium and the energy equilibrium equations . the analysis was used to study the effect of gasifying agent mixture ratio on the outlet syngas composition , the cold gas efficiency , the thermal efficiency and the exergy efficiency . the optimum o2 / coal ratio was found for a reasonable vapor / coal ratio ( the vapor / coal ratio had little effect on the efficiencies ) for various kinds of coal to maximum the thermal efficiency and the exergy efficiency 通过化学平衡和热量平衡方法求解气化炉平衡工作温度以及该温度下的出口煤气成分,研究了气化炉进口气化剂配比对出口煤气成分、冷煤气效率、热效率及火用效率的影响,指出热效率、火用效率最优情况下适应于各煤种的最优氧煤比以及合理的水蒸汽耗量,为多联产系统的设计优化提供参考。 |
| 8. | This system finished supervisory control of boiler burning , sampled signals through sensors and calculated the signals whether reached the best content of oxygen and the best wind - coal ratio . using it controls the quantity of coal , entering wind and sending wing for reaching the best thermal efficiency of burning and improving economy benefit of boiler running 系统对锅炉燃烧进行监控,通过传感器采样信号,计算是否达到最佳含氧量、最佳风煤比,来控制给煤量、引风量和送风量,使燃烧达到最佳热效率和提高锅炉运行的经济效益。 |