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blowing gas     
相关语句
  吹风气
     Application of Recovering Device for Residual Heat from Blowing Gas in Ou r Plant
     吹风气余热回收装置在我厂的应用
短句来源
     Application of Centralized recovery technology for blowing gas in M-sized nitrogenous fertilizer plants
     吹风气集中回收技术在中型氮肥厂的应用
短句来源
     The article elaborates production principles and characteristics of s emi-water gas and necessities of rec overing residual heat from blowing gas. It introduces tech nological process of recovering device for residual heat and selection o f the equipment,also analyzes economic benefits of the device.
     阐述了半水煤气的生产原理、生产特点和吹风气余热回收的必要性,介绍了余热回收装置的工艺流程、主要设备的选型,并对整个装置进行了经济效益分析。
短句来源
     The title transformation includes using water gas to substitute for semi-water gas,making hydrogen with shift gas instead of synthesis gas,accomplishing the development of by-product liquid CO2 and increasing the recovered steam from blowing gas. The transformation not only reduced the production cost,but protected the environment as well.
     改变传统的合成氨和氢气生产工艺流程,以水煤气代替了半水煤气,以变换气制氢代替了合成气制氢,实现了副产品液体CO2的开发,并提高了吹风气回收的蒸汽产量,降低了生产成本,有效保护了环境。
短句来源
  吹气体
     STIRRING TECHNOLOGY OF BOTTOM BLOWING GAS IN EAF
     电弧炉底吹气体搅拌技术
短句来源
     An hot simulation experiment has been made to investigate the process of forming mushroom above outlet of bottom bloving nozzel in combined blowing converter, and the relation between the temperatures of bottom bloving nozzel as well its peripheric refractory lining, and the temperature of hot metal as well the flowrate of bottoin blowing gas.
     通过热态模拟试验,研究了复吹转炉底吹喷枪出口端生成蘑菇头的过程以及底吹喷枪温度、周围耐火材料内的温度与铁水温度、底吹气体流量之间的关系。
短句来源
     To introduce the technological requirements. system configuration and control functions on blowing gas flowrate and variety for converter bottom blowing gas control KGC technology imported first in our country as well as its applications in 4~# and 5~# converters at the 2nd Steelmaking Plant of Baosteel.
     主要介绍我国首次引进的转炉底吹气体控制KGC技术的工艺要求,底吹气体流量、气体种类的控制功能,系统构成以及在宝钢三期二炼钢4~#、5~#转炉上的应用情况。
短句来源
     The following optimization process parameters of 50 t LBE in Ma'anshan Iron &Steel Co. Ltd. are obtained: the flow rate of gas in toped lance is about 12 000 N/h , distance of toped lance is 2 000 mm, remnant slag quantity is 9%, the flow rate of bottom blowing gas is 60~120 N/h.
     马钢50t复吹转炉的最优化工艺参数为 :顶枪气体流量12000N /h ,枪位2000mm,留渣量9% ,底吹气体流量60~120N /h。
短句来源
     And the criterion equations deduced as follows: It is tested that the blowing gas velocity,the depth of the ladle,the height of the single snorkel surface,the inserted depth of the single snorkel and the blowing site are closely related to the decarbonization velocity.
     研究发现,底吹气体流量、熔池深度、单嘴液面高度、单嘴插入深度及吹气位置对单嘴精炼炉的脱碳速率有主要的影响。
  吹煤气
     Renovation of Down Blowing Gas collector
     下吹煤气收集器等的改造
短句来源
     Introduction on renovation of down blowing gas collector and gas cooler of two-stage gasifier torestore their function to avoid explosion.
     介绍对两段炉的下吹煤气收集器、煤气冷却器的改造,恢复了它们的作用,避免了爆炸的发生。
短句来源
  吹炼气体
     The improved refining process parameters were oxygen∶nitrogen = (4~5)∶1 in blowing gas in first oxidation period, oxygen∶argon = 1∶(1~2) in second oxidation period, refining temperature ≤ 1 710 ℃, CaO/SiO 2≥1.4 and MgO content ≥8% in slag.
     改进后精炼工艺参数为氧化 1期吹炼气体中氧∶氮 =(4~ 5 )∶1,氧化2期氧∶氩 =1∶(1~ 2 ) ,精炼温度≤ 1710℃ ,炉渣CaO SiO2 ≥ 1.4 ,炉渣中MgO含量≥ 8%。
短句来源
     The refining process parameters of a 40 t AOD unit at Taiyuan Steel have been improved by production test such as to increase the ratio of oxygen in blowing gas in first oxidation period, the basicity of slag and MgO content in slag, and decrease the refining temperature.
     通过生产试验改进了太钢 4 0tAOD精炼工艺参数。 提高氧化 1期吹炼气体中氧气的比例、炉渣碱度和炉渣中MgO含量 ,降低精炼温度。
短句来源

 

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      blowing gas
    Noise reduction in quartz-blowing gas-burner equipment
          
    Blowing gas bubbles in the surfactant solution at a constant gas pressure produces the foam.
          
    Blowing gas into the vacuum chamber through the top lance like KTB operation does not markedly influence the circulatory flow and mixing characteristics of the RH process under the conditions of the present work.
          
    Blowing gas through the water modifies the cavitation effect, simplifies breakdown, and allows solid electrodes to be used.
          
    However, blowing gas slowly into the tube expels the water droplet very easily.
          


    In several previous studies[1, 4], the penetration length of a bottom-blowing oxygen jet in converter was calculated by using the formula of calculating the top-blowing oxygen jet. The difference between these two opposite gas jets has not been taken into consideration, such as their oppoite initial forces and the bouyancy forces exerting on gas jet. Based on a simulation experiment, this paper offers an expression to calculate the penetration length of a bottom-blowing gas jet as followswhere l—— penetration...

    In several previous studies[1, 4], the penetration length of a bottom-blowing oxygen jet in converter was calculated by using the formula of calculating the top-blowing oxygen jet. The difference between these two opposite gas jets has not been taken into consideration, such as their oppoite initial forces and the bouyancy forces exerting on gas jet. Based on a simulation experiment, this paper offers an expression to calculate the penetration length of a bottom-blowing gas jet as followswhere l—— penetration length of the bottom-blowing gas jet;d —— dia, of nozzle exit; Fr ——Froude number; We —— Weber number;r'—— liquid density;σ——surface tension of liquid. W —— velocity of gas jet at nozzle exit.g—— acceleration of gravity.The expression reveals appropriately the different effects of the initial force, the bouyancy force and the surface tension on the upward bottom-blowing gas jet. Of course, such an expression should be modified in pratice under real condition. A comparison of the formula as above to the formula derived to calculate the top-blowing gas jet but also to be taken for the bottom-blowing gas jet in previous studies has been made (see Fig.3) . It is clear that the penetration length calculated by using the latter is rather smaller than using the former, because the bouyancy force has not counted in the latter.

    根据底吹氧气炼钢供氧的特点,用理论分析和模拟实验相结合的方法,得到了描述底吹氧气流股的决定性准数和流股穿透长度的实验公式。与某些实际上来自顶吹模型计算顶吹流服穿透深度而用于计算底吹流股对熔池穿透长度的公式相比,更为合理。

    A water modeling has been carried out to find the bath mixing timein the top-bottom combined blowing process. The mixing number Mx = (τv)/Dwas usedfor correlating the bath mixing time with other factors involved. The results of this work have shown an excellent agreement with those of industrial experiments in different scale. It has been found, that the mixing time mainly depends upon the mechanic power brought into the bath by the blowing gas. The munber of the tuyers used gives no considerable effect...

    A water modeling has been carried out to find the bath mixing timein the top-bottom combined blowing process. The mixing number Mx = (τv)/Dwas usedfor correlating the bath mixing time with other factors involved. The results of this work have shown an excellent agreement with those of industrial experiments in different scale. It has been found, that the mixing time mainly depends upon the mechanic power brought into the bath by the blowing gas. The munber of the tuyers used gives no considerable effect on the mixing time, but the geometric arrangement of the tuyers is of some importance. For instance in program using one tuyer arranging the tuyer in centre was not better than the case of arranging it asymetrically. The information on top, bottom and top-bottom mixed blowing with regard to the mixing time are given.

    水力学模拟研究——寻找顶底吹过程的熔池混合均匀时间——混合指数τV/D被用来表达混合时间与其它因素的相关——本工作结果与不同规模工业试验的结果符合。研究中发现,熔池混合均匀时间主要和随气体输入的机械功率有关。底吹喷嘴的数目对混合均匀时间的影响不大,但喷嘴排列的位置却显得很重要。相对于整个炉底来说对称布置不利子搅拌,例如一个喷嘴的方案中,放喷嘴于炉底中心不如放在偏一边好。文中给出了有关纯顶吹、纯底吹和顶底复合吹的有关搅拌情况。

    By means of the hydrodynamic model experimental investigation of 50 tonne converter, the effect of top blowing oxygen flow, lance height and nozzle structures on the bath stirring mixing time in only top-blown converter, the effect of bottom-blowing gas flow, the structure of tuyere (single tube, ringed crack, multiple-hole), numbers and configurations of tuyere on the bath stirring mixed time in only bottom blown converter, and the effect of various conditions for top and bottom blown on the bath stirring...

    By means of the hydrodynamic model experimental investigation of 50 tonne converter, the effect of top blowing oxygen flow, lance height and nozzle structures on the bath stirring mixing time in only top-blown converter, the effect of bottom-blowing gas flow, the structure of tuyere (single tube, ringed crack, multiple-hole), numbers and configurations of tuyere on the bath stirring mixed time in only bottom blown converter, and the effect of various conditions for top and bottom blown on the bath stirring mixed time in top/bottom-blown converter for bottom blowing with a small gas flow.

    通过50吨转炉水模实验,研究了顶吹氧量、枪位和喷头结构(十种)对纯顶吹混匀时间的影响,以及底吹气量、凤咀结构(单管式、环缝式和多微孔环管式)、数目和布置(六种)对纯底吹混匀时间的影响,以及不同顶、底吹条件对复吹搅拌混匀时间的影响,探讨了底吹小气量时,顶枪在50吨复吹转炉中的作用和地位及合理操作参数。

     
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