| 1. | Second , on account of the block of gas channel we designed a gas channel system , through which the hydrogen can flush the gas channel after the reaction by the control of valves 针对以前气路堵塞的问题设计并制作了气路系统,使氢气在反应后能够通过阀门控制对气路进行冲洗。 |
| 2. | For large blast furnaces , the change of main operation parameters are analyzed and gas channels in high temperature and lower part of blast furnace an discussed for three modes 在大型高炉工况条件下,解析了3种富氧操作方式下主要冶炼参数的变化规律,以及高炉下部高温区煤气通道状况。 |
| 3. | The best reductive effectiveness under different gas channel width , marangoni number and aspect ratio have been represented . it should be emphasized that the mc reduction of 99 % can be realized in some situations 流道宽度对熔体热毛细对流的抑制有很大的影响,流道越窄,熔体热毛细对流的抑制效果也越好。 |
| 4. | The research results show that the radius of the gas channels and the electronic conductivity in carbon phase of the reaction layer , and the porosity of the gas diffusion layer are relatively less important 研究结果表明气体扩散层孔隙率,反应层气体通道的半径以及碳相中电子传导率等参数的变化对电极性能影响不大。 |
| 5. | The calculation results show that the radius of the gas channels in the reaction layer and the porosity and average pore radius of the gas - diffusion layer seem to be less important for the performance of the electrode 模型结果表明对于电极性能而言,气体扩散层的孔隙率与平均孔径以及反应层气体通道的半径,相对其他参数来说显得不太重要。 |
| 6. | The calculation results show that the radius of the gas channels in the reaction layer and the porosity and average pore radius of the gas - diffusion layer seem to be less important for the performance of the electrode 模型结果表明对于电极性能而言,气体扩散层的孔隙率、平均孔径以及催化层气体通道的半径,相对其他参数来说显得不太重要。 |
| 7. | Based on the close packing and grain composition theory , a new anti - gas channeling lightweight high performance cement slurry system has been developed with industrial drift beads as lightweight additive and superfine gel as strengthening agent 摘要基于紧密堆积和颗粒级配理论,研制了一种以工业漂珠为减轻剂、以超细胶凝材料为增强剂的新型低密度、高强度防气窜水泥浆体系。 |
| 8. | The result on research is as fellow : ( 1 ) the way to rebuild gas channels in combustion chamber of pb column has been researched in order to decrease the flow resistance . the aim , which is less resistance than that at present construction , has been gained 本论文首次通过系统狈赋,借助伍颤桔葫榨酿斓阁塔的燃腕室翩翱划稚歼涸浙,对锌睬螨辨转以孰舱浇室内煤气道、烟气道的纬淋挝矫孔划b研究。 |
| 9. | The reads show that gas flow can be well - proportioned distributed in hearth , and effective quantity of gas channels increased under oxygen - enrichment operation with stable air flowrate , thus oxygen - enrichment operation with stable air flowrate is an effective way for improving the productivity of blast furnace 结果表明:稳定风量的富氧操作方式有利于煤气流在炉缸的均匀分布以及有效煤气通道量增加,是提高高炉产能的有效措施。 |
| 10. | 3 . on boiler retrofit , the calculation of fuel burning , the heat calculation of boiler inside structure and convection section , and the design of structure parameter of feed water heat exchanger are made . the flue gas channels " resistance calculation and the boiler strength verifying are also carried out . replacement of water cooling wall improves heat exchanging and decreases loss of heat radiant 对锅炉本体进行了燃料燃烧计算、炉膛结构热力计算、对流受热面结构热力计算、锅炉给水加热器结构参数设计、烟道阻力计算及锅炉元件强度校核等;改进了水冷壁布置使换热效果更好,减少辐射换热损失;改进对流段结构,更充分的利用炉膛出口烟气余热,提高热效率;并且进行了烟气阻力计算、热效率计算和能量平衡测试,对改进后的稠油燃料和改进前进行了对比,燃烧状况和热效率有明显改善。 |