炉

Meanwhile application of external re-circulation to calcining enhanced the thermal stability of calciner system. The required operating temperature inside a calciner may drop 30～ 50 ℃ by increasing recirculation ratio of 100％.

外循环方案有助于改善分解炉的热稳定性并降低分解炉的操作温度；在终分解率不变的情况下，物料循环率每增加100％，分解炉的操作温度可降低30～50℃。

The present invention has the hot treating furnace pre-vacuumized to 10-100 Pa, introduced with high purity nitrogen and heated to 900-1050 deg.c, before maintaining and introducing acetylene gas to carburize at nitrogen pressure of 0.1-0.11 MPa and acetylene gas pressure of 5000-20000 Pa.

本发明通过向设有炉内循环风机的热处理炉进行预抽真空至10-100Pa，通入高纯氮气，再将炉温升至900-1050℃，保温后再通入乙炔气进行渗碳，炉膛内氮气的压力为1×10 5 -1.1×10 5 Pa之间，充入的乙炔分压为5000-20000Pa之间。

The invention discloses a synthetic using method of smelting high-furnace dust, which comprises the following steps: grinding the high-furnace dust with 1.5-15% zinc; proceeding magnetic cobbing; reclassifying to obtain the refined ferric ore; disposing ore tail through waste acid of titanium dioxide with 15-30% sulphuric acid; transmitting the zinc oxide in the solution at zinc sulfate pattern; separating solid and liquid solution through lime; obtaining refined zinc ore through S2-, CO32-, HCO3- ion; floating the immersed slag through neutral oil.

一种炼铁高炉炉尘资源综合利用的方法，含锌1.5％～15％的高炉炉尘经磨矿、磁选、重选回收铁矿物获得铁精矿，选矿尾矿用含硫酸15％～30％的钛白废酸处理，使其中的氧化锌以硫酸锌的形式转入溶液中，固液分离得出的溶液用石灰中和除铁后，再用S2-、CO32-、HCO3-离子沉锌获得锌精矿，浸出渣用中性油浮选获得炭精矿。该方法将钛白废酸和高炉炉尘结合在一起，使之成为互为所需的原料和试剂，有效地将两种废弃物变成了有价资源，较好解决了环境污染问题，同时又能产生好的经济效益。

Based on the accidents in test and operation of line-frequency coreless induction furnace , the safety proceedings in furnace lining sintering, furnace drying and the melting operation and the emergency treatment methods of service interruption, leakage of steel and accident of cooling water have been pointed ou

针对无芯工频感应电炉试炉及运行过程中易发生的事故，提出了炉衬烧结和烘炉、熔炼操作过程中应注意的安全事项，以及停电、漏炉、冷却水事故的紧急处理方

Finally, the intelligence monitoring and diagnosis system of the temperature-field in hearth was built on the base of the model, which can monitor and diagnose all the wind-coal parameters online and display the temperature distributing in the hearth dynamically and estimate the position of the deflective burning cut-circle.

最后，在炉内二维温度场动态显示模型基础之上，开发了一个煤粉锅炉炉内温度场智能监测与诊断系统，该系统能够对各个风粉参数进行在线监测与诊断，动态显示炉内特征截面的温度分布状况以及对燃烧切圆偏斜的具体位置做出准确判断。

CFB (Circulaiing Flued-bed Boiler), which could desulphurize by adding the lime stone in boiler, was adopted in the project of petroleum coke taking the place of oil; IGCC was adopted in coal to gas project; PC+FGD, such as limestone/plaster wet type desulfurization, liquid spray flue gas desulfurization, electron beam flue gas desulfurization and sprayed dry type desulfurization etc., was adopted in the other projects of thermoelectricity. Desulfurization inside boiler needs less running expenses but high investment and lower desulfurization efficiency.

主要为：高硫焦代油项目燃用石油焦，采用循环流化床炉内加石灰石脱硫；煤造气采用整体煤气化联合循环工艺；其余热电项目则采用煤粉炉加炉外烟气脱硫，具体的脱硫工艺选择有石灰石／石膏湿法脱硫、液柱喷射烟气脱硫、电子束法烟气脱硫以及旋转喷雾干燥法脱硫。

Shrinkable packer is automatic successive shrinkable packaging device and is the latest pattern in our country, using quartz farness ultrared rays tube and electricity-saving (may save more than 15%); the humidity of shrinking and the conveying rate of the electric machine is adjusted, and the adjusting range is extensive; Original creation roller rotation devise and can work continuously.

佛山PE热收缩包装机〓中山热收缩机〓深圳收缩炉〓东莞PE收缩包装机/珠海收缩机〓收缩机〓热收缩机〓收缩包装机〓热收缩包装机〓收缩炉〓烘干炉〓烤箱是目前国内最新型的自动连续收缩包装设备，采用石英远红外管加热，节电高效（节电15%以上）；收缩湿度和电机机传机速度稳定可调，且调节范围广；独创滚筒自转装置，可连续工作。

Shrinkable packer is automatic successive shrinkable packaging device is the latest pattern in our country, using quartz farness ultrared rays tube electricity-saving (may save more than 15%); the humidity of shrinking the conveying rate of the electric machine is adjusted, the adjusting range is extensive;iginal creation roller rotation devise can work continuously.

佛山pe热收缩包装机〓中山热收缩机〓深圳收缩炉〓东莞pe收缩包装机/珠海收缩机〓收缩机〓热收缩机〓收缩包装机〓热收缩包装机〓收缩炉〓烘干炉〓烤箱是目前国内最新型的自动连续收缩包装设备，采用石英远红外管加热，节电高效（节电15%以上）；收缩湿度和电机机传机速度稳定可调，且调节范围广；独创滚筒自转装置，可连续工作。

This technique has two prominent problems: titanium"s burning loss and high temperature melt treatment (up 1873K). The author puts forward melting protective cover used by plant ash which can insulate air and enhance effect of heat preservation effectively. At the same time, the author chooses alkalinous magnesite for furnace lining which can avoid redox reaction between silicon oxide (SiO2) and titanium, improve fireproofness of furnace lining and decrease titanium"s burning loss ratio.

针对制备工艺的两个突出问题：Ti元素的烧损问题和高温熔体处理问题(1873K以上)，提出利用草木灰作为熔炼的覆盖剂，能有效地隔离空气，强化保温效果，同时选用碱性镁砂炉衬，提高了炉衬的耐火度，克服了酸性炉衬中SiO_2与Ti元素的氧化还原反应，降低了Ti元素的烧损率。

This paper introduced in detail survey of waste heaf boiler of non-ferrous metallurgical furnace about domestic and foreign, on development, technical data and characteristic of construction.

本文详细介绍了国内外有色冶金炉余热锅炉的发展概况，技术性能及结构特点，通过国内某厂锌沸腾炉余热锅炉结构分析，简要阐述了余热锅炉的设计程序和设计要点，并指出采用膜式水冷壁、直通道、强制循环和高效弹性振打清灰是我国有色冶金炉余热锅炉的发展方向。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。