查询词典 limestone kiln

On the basis of characteristic analysis on all kinds of mineral tailings of copper lead zinc, mineral tailings was classifying according to its application. At the same time, the calcining experiment for twenty material prescriptions of the mineral tailings substituting the clunch or mineralizer mixed with different grades of limestone was actualized in the laboratory's heating kiln under the different temperature. After the fCaO analysis and the X-diffraction test to the calcined samples, the reasonable prescriptions and optimal calcining condition were put forward for different kinds of mineral tailings used to substitute the clunch or mineralizer, the research conclusion offers the instructional reference for the large-scale industrialization production.

同时，对尾矿用于代粘土和矿化剂配不同品位石灰石的20个生料配方进行了实验室高温炉不同温度下的煅烧试验，并对煅烧后的熟料样品进行了游离CaO和X衍射分析，得出了不同尾矿用于代粘土或矿化剂的合理配方和煅烧工况，从而为大规模产业化利用提供指导性参考依据。

The invention provides a sulfur oriented adsorption control method for calcining active lime in a rotary kiln comprising the following steps: the rotary kiln calcines the massive limestone using the mixture of the coal fines and active lime fine silts as fuels, the sulfur in the flue gas is adsorbed using the sulfur adsorption and desulphurizing ability of the active lime fine silts, meanwhile the sulfur-adsorbed kiln dust is separated from the calcined active lime by means of screening to get low sulfur-content active lime.

本发明提供的回转窑煅烧活性石灰中的硫定向吸附控制方法，具体是：回转窑以煤粉与活性石灰微细粉粒的混合物为燃料，在对块状石灰石煅烧时，利用活性石灰微细颗粒所具有的硫吸附与脱硫能力对烟气中的硫进行吸附，同时通过筛分将吸附了硫的窑灰与煅烧过的活性石灰分离，而得到低硫含量的活性石灰。

To this, this company adopted 0.2%; of ± of the W=2.8% in controlling limestone to adjust burden plan according to the size of clinker magnesian content; is reduced and stability decomposes furnace to; of temperature of canister of end of exit, kiln, C5 is reduced and stabilize kiln to decompose rate do not exceed 94%; and strengthen comb with a double-edged fine-toothed comb cold machine, clinker quality gets changing apparently.

对此，该公司采取了控制石灰石中w=2.8%±0.2%；根据熟料镁含量的大小调整配料方案；降低并稳定分解炉出口、窑尾、C5筒温度；降低并稳定入窑分解率不超过94%；以及加强篦冷机操作和调节煤粉燃烧器用风等系列办法后，熟料质量得到明显改观。

They used limestone of different quality and large-fluctuant-range waste stone in proportion and substituted a part of clay with clay stone to produce cement. And the physical performance of the produced Portland cement was improved greatly-28 d strength increased from 50.4MPa to 54.5MPa, and output of the rotary kiln increased. Moreover, the company also tried to use green shale as admixture to produce compound cement and successfully produced compound Portland cement with a little low early strength and a little higher 28d strength than slag Portland cement. And the cement cost decreased 19.59 yuan per ton.

将CaO含量波动范围较宽的废石与不同品位石灰石按比例搭配使用，将其粘土质特性的废石替代部分粘土生产；而且生产的硅酸盐水泥熟料物理性能有较大提高，28d强度由原来的50.4 MPa提高到54.5 MPa，窑产量也有一定的提高；此外，该公司还进行了将绿色页岩作混合材生产复合水泥的生产探索，成功生产出了早期强度略低，但28d强度略高于矿渣硅酸盐水泥的复合硅酸盐水泥，且使水泥生产成本降低19.59元/t。

This paper analysis the common technical malfunctions problems for the new dry rotary kiln ,such as how to stable decomposition of limestone and burning temperature which brought about over burning clinker and under burnt clinker, established one intellectualized control system of the new type try-process burner was put forward.

针对新型干法窑生产中分解、烧成温度不稳定的问题进行了分析，提出建立智能燃烧器控制专家系统来解决此问题的思路，并对构成专家系统的主要部分的知识库和推理机进行了详细的分析和论述。

It is also known as one of the most poisonous naturally occurring substances.

它也被称为一个最自然发生的有毒物质。

The greatest stress is found at the location on the cross section where V is the largest.

最大应力出现在横截面上V为最大的地方。