烧石膏

As raw materials,and under the condition of 1 250 ℃,the high iron belite aluminate cement is made,whose mineral ingredients are 51 %～55 % of C_2S,20 %～30 % of C_4A_3,and 12 %～25 % of C_4AF;and whose strength in 1 d cement can reach(35 MPa),and that of 28 d cement can reach(66 MPa).

用高碳粉煤灰及石灰石、石膏等为原料，在1 250℃条件下烧成了高铁贝利特硫铝酸盐水泥，其主要矿物组成C2S为51%~55%，C4A3-S为20%~30%，C4AF为12%~25%；水泥1 d强度达35 MPa，28 d强度达66 MPa。

CaO,SO3 in the clinker and the granularity,specific surface area,granulometric grading,admixture,plaster of cement,these factors will all effect the ISO cement strength,so we have a systemic and optimizing subject.

CaO、SO_3微量组分，煅烧温度，以及水泥制备中的细度、比表面积、颗粒级配、混合材、石膏等对水泥ISO强度都有影响，因此这是一个系统的优化的课题。

Every year a lot of waste gypsum, pyritic slag and tailing s are discharged all over our country because of gold smelt.

我国黄金冶炼行业每年都要排放大量的尾矿砂、废石膏和硫酸烧渣等固体废物，而目前这几种固体废物的利用率都比较低。

Every year a lot of waste gypsum, pyritic slag and tailings are discharged all over our country because of gold smelt. Nowadays the utilization of these kinds of solid wastes is far less than enough, and a good deal of agriculture land has been occupied because of the accumulation of them.

我国黄金冶炼行业每年都要排放大量的尾矿砂、废石膏和硫酸烧渣等固体废物，而目前这几种固体废物的利用率都比较低。

The direct fluidizing calcination technique affords a new way for power plants to deal with FGD gypsum.

直接流化焙烧技术为火电厂脱硫石膏焙烧提供了新的技术方案。

The following are the main export goods we are dealing: antimony oxide.copper,scrap steel.pig iron,products made of tungsten,metal zinc,ferro alloy rare earth,coke,alumina,tin ingots,cement,fluorspar lump,magnesium oxide light and dense,talc lumps,barite,aluminium(processing with incoming materials and re-exporting),gypsum,iron nails,iron wire,calcium carbide,sodium sulphate anhydrous,ferrousmetals,nonferrousmetals,nonmetals,machines,apparatus and instrument,industrial and agricultural tools etc.we are also agent for importing and exporting the above products.

经营范围：我公司经营的主要出口商品有：锑、氧化锑、铜材、废钢、生铁、钨制品、锌、铁合金、稀土、焦碳、矾土、锡锭、水泥、砩石块、轻烧镁、滑石块、重晶石块、铝材、石膏块、铁钉、铁丝、电石、元明粉、黑色金属、有色金属、非金属矿产品、机械设备、仪器仪表、工农具等，并代理上述商品的进出口业务。

Many manufacturers use a by-product gypsum source obtained from coal-burning power plants.

许多制造商都用一种从烧煤的能源厂获得的石膏燃料副产品。

And under the action of compound activators, it can react directly with slag and sand to produce environment-protecting cementingmaterial with 28d compressive strength above 30Mpa and various kinds ofconstruction products.

本研究由于不需要对磷石膏进行水洗、煅烧等预处理，在复合激发剂作用下可直接与矿渣、砂等作用，生产出28天抗压强度大于30MPa环保型胶凝材料和各种不同的建筑制品，不仅节能，而且不产生二次污染。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。