查询词典 lime kiln

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。

Connection elbow s have been produced by an easy operation that horizontal cluster casting with core_up moulding technology has been adopted which consists of water glass and lime sand cured by CO2 for molding and coremaking with reasonably selected method while feeding through making the most of gating, hence all performance targets of products meeting desired technical requirements.

采用水玻璃石灰石砂CO_2硬化制型、芯，合理选择造型方法，采用组芯水平串铸工艺，充分利用浇道补缩铸件，生产操作方便，所获得的接线弯头性能等各项指标，均达到技术要求。

M/s. The following dimensionless relationships were obtained: Sh=2+0.073Re〓Sc〓〓〓 The desulphurization process by powder injection and blowing in RH refining of molten steel and its mechanism have been considered and analyzed. Based on the tworesistance mass transfer theory and the mass balance of sulphur in the system, a kinetic model for the process has been developed. The related parameters of the model have been reasonably determined. Modeling and calculations for the process by injecting and blowing the lime based powder flux under the assumed operating modes in a RH degasser of 300t capacity have been carried out using the model.

考虑颗粒与液流的相对速度，RH—PTB条件下熔池传质特性可由下式表征： Sh=2+0.073Re〓Sc〓考虑紊流中脉动速度引起的能量耗散，RH—PTB条件下熔池传质过程服从如下关系：〓将粉剂颗粒与钢液间的传质当作刚性的气泡与钢液间的传质处理，对RH—PTB过程有：〓考察和分析了RH喷粉脱硫过程及机理，基于双重阻力传质理论和体系内硫的质量衡算，建立了RH喷粉脱硫过程的动力学模型，确定了模型各有关参数，包括各传质系数和脱硫处理过程中钢液内参与脱硫反应的粉剂量等。

By flue gas of 2000m〓/h, some normal wastes (seawater, fly ash of power plant, basic waste water, etc) and lime are used on the research of dry, semi-dry, and wet FGD and its corresponding pressure and temperature decrease on stuffing tower, the effect of Ca/S ratio, inlet SO2 concentration, inlet flue gas temperature, and L/G ratio on desulfuration efficiency is analyzed, the instrument of dehumidify was studied by experiment and appropriate instrument of dehumidify was chosen.

在浙大热能所大约相当于1吨／小时出力的锅炉的尾部烟道上的多功能传热除尘脱硫一体化试验研究装置上，利用海水、电厂灰、碱性废水和石灰开展了半工业性的干法、半干法、湿法烟气脱硫研究，分析了Ca／S比、进口SO〓浓度、进口烟温、喷水量等因素对脱硫效率的影响，并探讨了湿法烟气脱硫中的烟温问题，对湿法烟气脱硫反应塔的阻力特性和除湿装置进行了试验研究，选取了合适的除湿元件。

The overlying 0.8 m thick packstone and lime mudstone has a characteristic dendroid appearance.

此面之上是0.8m 厚的浅水的局限台地相沉积，具有树枝状的构造和外貌。

It is convenient for sinter to be leached, and the secondary reaction appears little. The slurry after sinter leaching is transferred into autoclave for desilicification at about 170℃, and the siliceous modulus of solution reaches more than 200. Then some lime is added for deep-desilication at normal pressure, the siliceous modulus of solution increases more than 600 even if the Al2O3 content is more than 200g/L.The SiO2 coefficient in hydrate garnet from deep-desilication is more than 0.28. Under conditions of the addition of seed and application of novel technology of carbonization, the contents of Na2O and SiO2 in product are less than 0.37% and 0.025%, respectively.

实验结果显示：烧成的熟料溶出条件宽松，二次反应程度弱；溶出浆液在170℃左右直接进行加压脱硅，脱硅后溶液的硅量指数大于200，再加入适量的石灰进行深度脱硅，即使溶液中氧化铝浓度超过200g/L时，精液的硅量指数也大于600，且得到的水化石榴石中二氧化硅饱和系数大于0.28；通过加入晶种和采用新的碳酸化分解工艺制度，产品中的SiO2 含量降至0.025%， Na2O含量小于0.37%；加入表面活性剂，不仅能将碳分母液蒸发至Na2OT浓度大于300g/L，而且还可有效减缓表面上结疤的形成速度。

A kind of pellet desulfurization reagent made by pulverized coal ash and slaked lime was filled in the fixed-bed and the simulated moving-bed. The desulphur and dust collection performance of the reactor were studied.

本文研究了以粉煤灰、消石灰和石膏制备的粒状脱硫剂，在固定床和模拟移动床实验装置中对粒状脱硫剂层的脱硫和除尘性能进行了实验。

A kind of pellet desulfurization reagent made by pulverized coal ash and slaked lime was filled in the fixed-bed and the simulated moving-bed. The desulphur and dust collection performance of the reactor were studied.

中文题名颗粒床脱硫和除尘的研究副题名外文题名 Studies on desulphurization and dust collection by the granular bed 论文作者黄学敏导师马广大教授学科专业环境工程研究领域\研究方向学位级别博士学位授予单位西安建筑科技大学学位授予日期2001 论文页码总数79页关键词脱硫烟气除尘烟气脱硫颗粒床馆藏号BSLW /2003 /X701 /13 本文研究了以粉煤灰、消石灰和石膏制备的粒状脱硫剂，在固定床和模拟移动床实验装置中对粒状脱硫剂层的脱硫和除尘性能进行了实验。

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。

After filtration the dissolventwas neutralized by lime cream directly to produce the acceptable feed gradecalcium phosphate dibasic.

过滤之后，不再经过专门的除氟工序，直接用石灰乳进行中和，就可以生产出合格的饲料级磷酸氢钙。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。