熔融铁

However, the formation of anorthite and hedenbergite at 1100℃ in the heating process is the main reason for the ash melting temperature lowing.

低灰熔融温度煤灰在加热过程中，在1100℃时，钙长石和铁钙辉石的生成起到了降低煤灰熔融温度的作用。

Basalt,olivine basalt and peridotite buried in deep strata may act just as the melten iron in laboratory.

地下深处的玄武岩、橄榄玄武岩和橄榄岩与实验室条件下的熔融铁类似。

Produce the BF gas mud 100, OOOt every year. The raw mineral of puddling is the magnetite containing vanadium and titanium. The grade of iron is only 53%. The grade of sinter mineral is only 47-48%. So the percentage composition of iron is relatively low, only 29.70%. The grade of zinc is relatively high, reach 9.92%. And the percentage composition of carbon is relatively high, reach 16. 80%. In the next place, the BF gas mud is the production through sinter in high temperature.

攀钢炼铁的原矿物为钒钛磁铁矿，铁品位仅为53％，烧结矿品位为47％～48％，所以攀钢高炉瓦斯泥的铁品位也相对较低，仅为29.70％，并且含锌量高，达到了9.92％，含碳则高达16.80％；其次高炉瓦斯泥是高炉冶炼过程中的产物，SiO_2、Al_2O_3和铁部分熔融在一起，选矿难度增加。

Otherwise, the hedenbergite formed at 1 100 ℃ in the heating process is the main reason for lowering the ash melting temperature.

低灰熔融煤灰在加热过程中，1 100 ℃时少量铁钙辉石的生成起到了降低煤灰熔融的作用。

F. On the other hand, as the gas with high oxidizability introduced to pre-reduction process, it will give a lower reductibility of iron ore and as the ore come to the final process the burden of the final reduction vessel will be heavier, the refractories of it will be corroded seriously and the campaign-life of it will be shorter.

终还原排出的煤气可以供预还原使用，由于排出煤气温度较高，需要降温才能供预还原炉使用，在此过程中煤气的物理热未被利用，这是目前熔融还原工艺能源消耗普遍大于高炉工艺能源消耗的主要原因；同时排出煤气氧化度较高，影响到矿石的预还原率较低，铁浴终还原的负担较重，终还原炉渣对炉衬的侵蚀严重，影响到铁浴终还原炉的寿命。

Moreover, the matrix effect was investigated. The results showed that samples could be completely decomposed by melting in lithium tetraborate and lithium carbonate mixed flux at about 1000℃. The introduction of lots of lithium and matrix magnesium in solution affected the determination, which could be corrected by matrix matching. Calcium, iron and aluminium with high content had no spectral interference with other elements with low content.

结果表明，样品用四硼酸锂和碳酸锂混合熔剂在1000℃左右的温度下熔融，可以完全分解试样；引进试液中大量锂和基体铁时测定有影响，用基体匹配的方法克服，含量较高的钙、铁和铝对含量低的其他元素没有光谱干扰。

On these grounds, a new method, the divided steping reduction, was put forword to prevent sticking phenomenon for pre-reduced fluidized-beds of smelting reduction, i. e. concentrate is reduced under the temperature and composition of gas first for the thick morphology of iron, to a certain metallized rate, and then for the whiskery morphology of iron.

据此，提出了一种新的旨在预防熔融还原预还原流化床粘结现象的措施——分段还原法，即先将铁精矿置于铁以致密状析出的温度和气氛下还原至一定的金属化率，而后再在铁晶须析出的温度和气氛下进一步深还原。

MgO-C brick has a good erosion resistance but Al〓O〓-C brick is better. Corrosion mechanism for refractory without carbon is that FeO and oxides of molten slag take place chemical reaction with constituents of refractory and forming low fusing point compounds to be dissolved in molten slag. For those refractory containing graphite carbon is to be decarburized in advance and to form decarburizing layer and metamorphosis layer. The subsequent corrosion is decarburizing and taking chemical reaction to form low fusing point compounds and dissolved in molten slag at the same time.

铁浴中硅和钛的扩散是影响铁浴及熔渣与耐火材料作用的重要因素，耐火材料中添加的TiO〓和SiC受熔渣氧化和侵蚀，将被部分还原形成Si，Ti向铁浴中扩散，Si、Ti在铁浴中的扩散研究结果是： D〓=1.84×10〓exp（－5988.7/T） cm〓/S E〓=49766 J/mol D〓=7.76×10〓exp（－53225.5/T） cm〓/S E〓=442304 J/mol 铁浴式熔融还原熔体对粘土砖，高铝砖，镁砖的侵蚀速度很高，镁碳砖抗侵蚀能力比前几种耐火材料强，但不如铝碳砖；对不含碳耐火材料在熔体中的侵蚀是熔渣中FeO及其它氧化物与耐火材料组分的化学反应形成低熔点物熔蚀进入渣相，产生损毁。

Air blow n through liquid pig iron in a refractory-lined converter oxidizes the carbon and silicon in the iron.

将空气吹入在耐火的炼钢炉中熔融的铁水中，使铁中的碳和硅发生氧化。

The samples were fused with mixed flux of Li2B4O7 and LiBO2 (67∶33). The homogeneous cobalt glass powder was prepared with CoO3 and used as internal standard to improve the accuracy and precision. LiNO3 was added as oxidizing agent to prevent sulfur from volatilization during fusion.

以Li2B4O7和LiBO2（质量比67∶33）的混合熔剂熔融制样，将测量全铁量的内标Co2O3制备成均匀的Co玻璃粉，大大提高全铁量的测量准确度和精密度；加入LiNO3为氧化剂，解决了硫元素在制样过程中容易挥发的问题。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。