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   碱度 在 冶金工业 分类中 的翻译结果: 查询用时:0.062秒
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碱度     
相关语句
  alkalinity
    The results show that the melting points and viscosity of fused slag increase with the increasing of the content of Al2O3 and alkalinity of fused slag.
    结果显示,随着熔渣中Al2O3含量的升高和碱度的增加,熔渣的熔点升高,粘度增加。
短句来源
    Production practice of low alkalinity cyanide leaching
    “负碱度”氰化浸出生产实践
短句来源
    Study on Activation for Steel-slag with Lower Alkalinity in Hydrothermal Condition
    水热条件下低碱度钢渣的激发研究
短句来源
    PRODUCTION OF PELLET IN 0.3 ALKALINITY WITH SHAFT FURNACE
    邢钢竖炉0.3碱度球团矿的生产实践
短句来源
    Study on Effect of Different Gypsums for Properties of Low Alkalinity Steel Slag Product
    不同纯度石膏对低碱度钢渣制品强度影响的研究
短句来源
更多       
  basicity
    STUDY OF FLUORINE-BEARING SINTER WITH HIGH BASICITY IN BAOTOU IRON AND STEEL WORKS
    包钢高碱度含氟烧结矿的研究
短句来源
    STUDY ON HIGH—BASICITY AND HIGH—MgO SINTERS
    高碱度高氧化镁烧结矿的研究
短句来源
    EFFECT OF HIGH BASICITY SLAGS (BaO-BaCl_2-CR_2o_3)ON DEPHOSPHOROZATION OF Cr-BEARING HOT METAL
    高碱度控制氧位渣系(BaO-BaCl_2-Cr_2O_3)对含铬铁水选择氧化脱
短句来源
    ON FACTORS INFLUNCING THE TFe CONTENT AND BASICITY STABILITY OF SINTERS
    烧结矿TFe、碱度稳定性影响因素的探讨
短句来源
    0. 5 BASICITY PELLETS MANUFACTURED WITH ADDITION OF FINE GROUND LIMESTONE──RESEARCH AND APPLICATION
    加细磨石灰石粉生产0.5碱度竖炉球团矿的研究与应用
短句来源
更多       
  the alkalinity
    By keeping the furnace temperature at over 1480K,controlling the alkalinity at a lower level and adding the subsidiary burden to reduce the melting point of furnace slag,the mobility of furnace slag was significantly improved that resulted in the successful separation of iron from slag.
    保持1480K以上的炉温,控制较低的碱度,配入辅料降低炉渣熔点,可显著改善炉渣的流动性,成功地实现渣、铁分离排放。
短句来源
    The results indicate that the sintering feed with the alkalinity at 1.8,coal blending ratio at 6.5% and moisture content at 7.5 produces agglomerate of best performance.
    结果表明,选择碱度为1.8、配煤量为6.5%和混合料水分含量为7.5的烧结矿生产出的烧结矿的性能最好。
短句来源
    The results reveal, the alkalinity of sinter can be accurately predicted through this model by reference to small sample and information. It was concluded that the GNN model is effective with the advantages of high precision, less samples required and simple calculation.
    其次,本文提出了灰色神经网络对烧结矿化学成分进行预测,并在此基础上构造了灰色神经网络模型,该模型有效地灰色理论弱化数据序列波动性和神经网络特有的非线性适应性信息处理能力相融合,研究结果证明,本模型能在小样本贫信息的条件下对烧结矿碱度做出比较准确的预测,此种模型具有预测精度高、所需样本少、计算简便等优点,取得了比较满意的结果。
短句来源
    The paper has described the basic principles of dephosphorization during the oxidation period of EAF steelmaking, discussed thermally dynamically the main factors such as melting bath temperature, slag alkalinity, slag oxidation properties,slag quantity etc which influence the oxidation dephosphorization, and analyzed the relations between the alkalinity of melting slag at the steelmaking site and the de phosphorization ratio, and between the starting temperature and decarbonization amount for oxidation and the average rate of dephosphorization.
    从热力学和动力学两个方面探讨了影响氧化脱磷的几个主要因素:熔池温度、炉渣碱度、炉渣氧化性及渣量等。 分析了炼钢现场熔化渣碱度与脱磷率的关系,氧化初始温度和脱碳量与脱磷平均速度的关系。
短句来源
    The kinetic process of direct alloying with manganese ore pellets in steelmaking has been studied. The relation of C in initial steel, MnO content in slag, the alkalinity of slag and furnace temperature with reducing rate of MnO in slag during reaction process has been analyzed. The apparent reaction order of MnO reduction is determined as first order reaction.
    用锰球团矿对钢的直接合金化的动力学过程进行了研究,讨论了初始钢中碳、渣中MnO含量和渣的碱度及炉温等与反应过程渣中MnO的还原速率的关系.MnO还原的表观反应级数为一级.实验得到锰的平均回收率为79.67%.
短句来源
更多       
  a basicity
    As the results from this study have shown that when the pellets with a basicity of 0. 9 were reduced for more than 20 minutes under 1250 ̄1300℃, the zinc volatilization above 95% and the lead volatilization above 82% can be reached , and the metallized pollets with compression strength over 3360 N/P and metalization over 90% can be obcained.
    试验结果表明,0.9碱度的球团,在1250~1300℃下还原20min以上时,可使锌挥发率(或还原率)达95%以上,铅挥发率(或还原率)在82%以上,并可得到抗压强度在3360N/个球以上、金属化率(或铁还原率)在90%以上的金属化球团。
短句来源
    In order to investigate the relationship between physical property and foaming property of slag with low FeO content during after desiliconization,the viscosity,surface tension,and foaming property of [CaO-SiO 2-FeO(5-15%)-Al 2O 3(10%)] quaternary system,with a basicity within the range of 0.4~1.0,were determine.
    为探讨脱硅后期低 (FeO)渣的物性与起泡性能的关系 ,测定了碱度在 0 .4~ 1 .0范围内四元渣系 [CaO -SiO2 -FeO( 5 %~ 1 5 % ) -Al2 O3( 1 0 % ) ]炉渣的粘度、表面张力和起泡特性。
短句来源
    The reasonable burden composition for BFs at Jiuquan Iron & Steel Co. ,which is composed of basic sinter with a basicity of 1. 75 (about 65%),acid pelletized sinter with a basicity of 0. 35 ( about 30%) and a small amount of Heiyinshan lump ore,was found out based on the result of reasonable burden composition test.
    通过试验确定了适合酒钢高炉生产条件的合理炉料结构,即以碱度为1.75的碱性烧结矿为主(65%左右),配加30%左右的碱度为0.35的酸性球团烧结矿以及少量的黑鹰山块矿。
短句来源
    At a basicity of less than 0.8 the pellet's RSI increases with increasing of basicity.
    当碱度在 0 .8以下时 ,球团矿的还原膨胀率随碱度的增加而升高 ,但当碱度为 1.2时 ,球团矿还原膨胀率迅速下降至 10 .5 4% ;
短句来源

 

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      alkalinity
    A systematic investigation was performed on the influence of several factors such as ageing of the reaction mixture, alkalinity, salt addition and temperature on the formation of a mordenite membrane on the seeded support.
          
    A higher alkalinity is unfavorable for the formation of a continuous mordenite membrane.
          
    The influences of the dispersion reagent, the alkalinity and the calcination temperature on the surface morphology of nanopowders, and the electric conductivity were discussed.
          
    Under deficient influent alkalinity, when compared to OAA, the AAA process improved treatment efficiency and effluent quality with NH4+-N in the effluent below the detection limit.
          
    In the nitrification, the average stoichiometric ratio between alkalinity consumption and ammonia oxidation is calculated to be 7.07 mg CaCO3/mg NH4+-N.
          
    更多          
      basicity
    Meanwhile, the basicity of MgO promoted the reversed water-gas shift reaction, which led to an increase in CO selectivity and a decrease in H2 selectivity.
          
    It is shown that the higher the slag basicity, the stronger the hydration interactions in alkaline binder compositions causing their hardening, all other things being equal.
          
    The ΔHsp values correlated with the donor numbers and modified acceptor numbers of the probes to quantify the acidity (KA) and basicity (KD) parameters of clay surfaces.
          
    Ligand Basicity and Isomerism of Molecular, Cationic, and Anionic Chlorofluorotitanium(IV) Complexes with Phosphoryl-Containing
          
    On the Quantitative Criterion for the Basicity of Oxides
          
    更多          
      the alkalinity
    The influences of the dispersion reagent, the alkalinity and the calcination temperature on the surface morphology of nanopowders, and the electric conductivity were discussed.
          
    As a result, half of the alkalinity previously consumed during the aerobic nitrification was recovered during the subsequent anoxic denitrification period.
          
    Contribution of Organic Acid Anions to the Alkalinity of Natural Humic Water
          
    Based on this equation and data on the alkalinity and ion balance of water, the concentrations of hydrogen carbonates and organic acid anions can be calculated.
          
    In accordance with the found average dissociation constant of humic acids (pK = 4.0), the contribution of their anions to the alkalinity of water is no higher than 10% of their concentration.
          
    更多          
      a basicity
    In CaO-SiO2-Al2O3-V2O5 slags, a slight increase in redox ratios (V3+/V4+) was obvious when alumina quantity was changed from 3.22 to 5.44% at a basicity ratio ~1.3, indicating an increase in slag acidity.
          
    These advantages, combined with the favorable composition of the country rock-which has a basicity (based on CaO + MgO/SiO2) of up to 2.6-makes it possible to classify these siderites as iron-fluxes that can be used effectively in a blast furnace.
          
    Slags with a basicity of 1.9 - 2.1 react with periclase to yield spinel, calcium orthosilicate, and monticellite.
          
    The viscosity data of this study, along with that of several similar studies from the literature, were correlated with the weight parameter (WP), a composition-dependent function similar to a basicity ratio.
          
    The partition ratio initially increased with basicity but remained constant beyond a basicity of 2.5 to 2.6.
          
    更多          


    C Haaa Too oa Ha pHKeTpoBaHHoM exe eHbHcKoo aBoa po-BocTBa pkeTa Haa coboBaTb KoHeHTpaT eHbIx eeHBIx py(co.Fe60~61%;SiO_2~14.89%)oce ooaeH BMecTo KoHeHTpaTa oaTbIxeeHbI py(co.Fe67~69%;SiO_2 4.86%)oce ooaeH.ObITHa aBkaoabIBaa,To caMoaBk pKeT eHoo KoHeHTpaTa c BbIcoKo ocHoBH-ocTbIo ((CaO+MgO)/(SiO_2)>1.0) p oHo To e TeMepaType oa (opke1300~1400°) ocHoBHocT eKo aBc(ae B KoM cocToH),e PkeToaToo koHeHTpaTa, T.e. HTepBa TeMepaTypbI aBeH caMoaBkoo p-KeTa eHoo KoHeHTpaTa oee yoK. CeoBaTebHo Hao papeIIIaTb ToT Bopoc...

    C Haaa Too oa Ha pHKeTpoBaHHoM exe eHbHcKoo aBoa po-BocTBa pkeTa Haa coboBaTb KoHeHTpaT eHbIx eeHBIx py(co.Fe60~61%;SiO_2~14.89%)oce ooaeH BMecTo KoHeHTpaTa oaTbIxeeHbI py(co.Fe67~69%;SiO_2 4.86%)oce ooaeH.ObITHa aBkaoabIBaa,To caMoaBk pKeT eHoo KoHeHTpaTa c BbIcoKo ocHoBH-ocTbIo ((CaO+MgO)/(SiO_2)>1.0) p oHo To e TeMepaType oa (opke1300~1400°) ocHoBHocT eKo aBc(ae B KoM cocToH),e PkeToaToo koHeHTpaTa, T.e. HTepBa TeMepaTypbI aBeH caMoaBkoo p-KeTa eHoo KoHeHTpaTa oee yoK. CeoBaTebHo Hao papeIIIaTb ToT Bopoc p KaKx ycoBx okHbIoeceTI, HopMabHy paoTy p pMeHeH eHoo KoHeHTpaTa c oyeH-eM caMoaBkoo pkeTa c BbIcoKo ocHoBHocTb B yyeM. Kaφepa MeTayp yyHa oMoaeT eHbHcKoMy aBoy poBoacceoBaTebcky paoTy B aopaTop, To obITaa ckaTb oTMabHbIreepaTypHbI peM oa pye HoBbIe ccTeMbI oa. PeybTaTbI paoTbI B aopaTop B epBo cTa oy:1. oToBTb caoaBK pkeT eHoo koHeHTpaTa c BbIcoKo ocHoBH-ocTbIo yceHo TobKo p xopoeM KoHTpoe TeMepaTypHoopeMa o-a, TeM BbIe ocHoBHocTb pHeTa, eM oee k HTepBa eo TeMepa-TypbI aBeH eM Hke eo TeMepaTypa aBeH. p ocHoBHocTx0.6~1.5 oMabHa TeMepaTypa oa pMepHo 1200±25°.2. p coboBaH aopaTopHbIx aHHbIx (B acTHocT, aHHbIx TeMepa-TypHoo peMa oa) Ha eHbHcKoM pkeTpoBaHHoM exe yyapaoTy poBoCTBa pKeTa oT coBaaa c aopaTopHbIM aHHbIM.3. oaBeHe ooMTa B pkeTe BMecTo BecTHKa oMoaeT B HeKoTopo cTe-eH oBbIcTb TeMepaTypy aBeH pKeTa, oBMoMy,BcecTBe oB-paoBaH coeHeH φeppToB MaHe, MeIHx cpaBHTebHo BbIcoky ?TeMepaTypy aBeH.4. o TeopeTecKoMy aHay KoecTBo Ko φabI c HKo TeMepaTypo(φeppTbI kab) eHoo KoHeHTpaTa opayeTc Tp paa obHe, ecaMoaBKoo pKeTa oaToo KoHeHTpaTa.5. oaBeHe KoKcKa B pKeTe opeeeHe TeMepaTypbI paMeH IIIH.xTbI caMaBKoo pKeTa poBey B BTopy cTa.

    本溪钢铁公司炼铁厂团烧车间使用贫精矿粉(含Fe~60%,SiO_2~14%)来制造高碱度自熔性贫团矿。在高温下熔化现象甚为严重。 经实验室中研究的初步结果,认为烧成高碱度的贫团矿,其温度范围变化很窄,因此首先要求严格控制团矿的焙烧温度制度,同时分析了影响烧成自熔性贫团矿的一些因素。工业试验得出的初步结果,基本上是和实验室所得的是符合的。 本文的后面作了烧成自熔性贫团矿的初步理论分析,供作讨论。

    The desulphurization of molten slags in the gaseous phase during top-blown with air has been studied from the kinetic standpoint, emphasis being made to study the effects of FeO, the j value (j=N_(Fe_2O_(3))/(N_(Fe_2O_3)+N_(FeO))) and the basicity of the slag upon the rate of removal of sulphur. It has been found that this gaseous desulphurization takes place according to the following reaction: (S~(2-))+3/2O_2=SO_2+(O~(2-)), (1)while the iron ions in the slag serve only as the oxygen-carriers:6(Fe~(3+))+(S~(2-))+2(O~(2-))=6(Fe~(2+))+SO_2,...

    The desulphurization of molten slags in the gaseous phase during top-blown with air has been studied from the kinetic standpoint, emphasis being made to study the effects of FeO, the j value (j=N_(Fe_2O_(3))/(N_(Fe_2O_3)+N_(FeO))) and the basicity of the slag upon the rate of removal of sulphur. It has been found that this gaseous desulphurization takes place according to the following reaction: (S~(2-))+3/2O_2=SO_2+(O~(2-)), (1)while the iron ions in the slag serve only as the oxygen-carriers:6(Fe~(3+))+(S~(2-))+2(O~(2-))=6(Fe~(2+))+SO_2, (2)6(Fe~(2+))+3/2O_2=6(Fe~(3+))+3(O~(2-)). (3)With slags containing very little or no FeO or slags with constant j value, as when air is blown upon the slag surface from a rather remote distance, the reaction has been found to be of the first order, the transfer of S~(2-) ions inside the slag being most probably ratecontrolling. An increase in the FeO content and the j value of the slag, as well as the temperature, accelerates the speed of removal of sulphur, while an increase in slag basicity retards it. It has been proposed that, owing to the oxidizing character of the blown-in air, SO_4~(2-) ions might have been formed inside the slag, but at the high temperatures prevailing, they decompose immediately into SO_2 and O_2. Any sulphate that may be present in the solidified slag is most probably being formed on its way of cooling in air. Attention has been called to resort to the correct method of analysis of total sulphur in the slag, the combustion method using CO_2 as the oxidizer being more accurate than the method using pure O_2. It has also been shown experimentally that the direct gaseous desulphurization of the metal is not so feasible as that of the slag, and that there exists some contradiction between the desulphurization of the metal with slag and the gaseous desulphurization of the slag. With a view to bringing about as a whole a more efficient desulphurization, the possibility of adapting the gaseous desulphurization to the actual steelmaking practice with the converter is briefly discussed.

    利用空气顶吹研究熔渣的气态脫硫动力学,着重研究了熔渣∑FeO含量、j值[j=N_(Fe_2O_3)/(N_(Fe_2O_3)+N_(FeO))]、以及碱度对气态脫硫速度的影响.对气态脫硫反应的机理及反应速度的限制性环节作了分析和讨论.最后,对金属直接的气态脫硫、炉渣的气态脫硫和炉渣脫硫本身的矛盾、以及气态脫碗在转炉炼钢工艺上的应用问题进行了简要的讨论.

    The benefited high quality burden is the basis for intensifing blast furnaces operation. "The benefited high quality burden" means the burden having following specialities, namely: high-grade, stability, heat-prepared, uniformity, smallness and free from fines. A high iron content of the burden is a necessary term for raising productivity and lowering coke consumption. In order to obtain high-grade sinters and pellets with proper stability in composition, high iron content, lower ferrous oxide content, higher...

    The benefited high quality burden is the basis for intensifing blast furnaces operation. "The benefited high quality burden" means the burden having following specialities, namely: high-grade, stability, heat-prepared, uniformity, smallness and free from fines. A high iron content of the burden is a necessary term for raising productivity and lowering coke consumption. In order to obtain high-grade sinters and pellets with proper stability in composition, high iron content, lower ferrous oxide content, higher strength, close size range and less fines, it is necessary to take efficient measures, such as fine-grinding and having it well beneficiated, improving the mixing and blending of the raw materials, choosing the proper size range of sinters, properly decreasing fuel consumption and making up good proportion of high basicity sinter and low basicity pellet, apart from careful operation and strict control of the agglomeration. Moreover, it is also necessary to have the more powerful agglomerating equipment and automatic control of agglomerating process; these can not only save man power, but also provide reliable means for achieving good quality and high production.

    精料是高炉强化的基础.精料的内容可以概括为"高、稳、熟、小、匀、净"六个字.提高含铁品位是增产节焦的前提,也是精料的基础.要获得成分稳定、品位高、氧化亚铁低、强度好、粒度均匀、粉末少的优质烧结矿和球团矿,除了对造块过程本身进行精心的操作和严密的控制外,还必须采取一系列措施:如注意铁矿的细磨深选;加强原料时混匀中和;进行烧结矿的整粒;降低燃料用量以及生产高碱度烧结矿和低碱度球团矿搭配使用等都是行之有效的方法.另一方面,造块设备的大型化和生产过程的自动控制和调节,不仅节省人力而且为产品的优质高产提供了可靠的手段.

     
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