The invention of the carbide slag instead of 100% natural dry calcareous raw materials of cement clinker production process relates to the field of building materials. The sandstone, fly ash and sulfuric acid residue are mixed with ingredients, added water, wet grinding and slurry storage, and the calcium carbide slag is condensed and stored in the thickener. The two slurries are respectively fed into the slurry storehouse and converted into raw slurry, and then stirred by compressed air. The raw slurry filter press dewatering extrusion, forming cake, feed drying hammer crusher, strong heat exchange and heat from the flue gas into the rotary kiln tail smoke chamber, and then with hot airflow into the crushing chamber was broken up, the formation of fine powdered raw materials, with hot flue gas through a cyclone dust collector, kiln the steady feeding Kokura, double helix feed machine, a feeding tube into the rotary kiln, at 1250 to 1350 DEG C. calcined into clinker. No drying drying Tuanfen continue to be scattered in the coarse crushing cavity, until it can be hot gas into the cyclone dust collector. The process completely solves the social problems of environmental pollution caused by carbide slag, and has the advantages of sufficient waste heat utilization of the kiln, high output of the unit volume of the kiln, low cost and small energy consumption.
【技术实现步骤摘要】
本专利技术的电石渣100%替代天然石灰质原料干法生产水泥熟料工艺方法涉及建材领域,尤其涉及一种电石渣水泥熟料的生产工艺。
技术介绍
一些化工厂生产中所产生的工业废渣较多,如电石渣、硫酸渣、粉煤灰等,直接倒弃这些废渣既是对资源的极大浪费,又会对生态环境造成污染。这些工业废渣完全可作为资源再利用,尤其是电石渣中富含CaO,可用做水泥生产中石灰石原料的替代物。申请号为CN200510021024.6的专利技术专利“用电石渣为原料的水泥熟料及其干法生产方法”公开了一种以电石渣为主要原料,采用干法立窑制备水泥熟料的方法。其原料配比为电石渣60~70%,磷渣3~8%,硫铁渣1~3%,磷石膏1~4%,粉煤灰8~17%,无烟煤8~10%,采用行星式轮碾机搅拌达到碾、压挤均化作用,挤压、脱水、成球,一体化干法制成熟料。该方法存在以下不足①电石渣掺加量少,只达到60~70%;②自动化程度低,由于采用干法立窑煅烧,故需要人工操作,劳动强度大;③熟料质量不稳定;④规模小,由于立窑规模仅为年产7~8万吨/单线,不能满足大规模生产的需要。
技术实现思路
本专利技术的目的在于提供一种以电石渣完全取代天然石灰质原料,采用湿磨和干法回转窑煅烧生产水泥熟料的方法。本专利技术的目的是通过以下技术方案得以实现的制备1吨水泥熟料时所用原料及重量(kg)为电石渣700-850kg 砂岩50-150kg 粉煤灰70-170kg硫酸渣10-50kg水500-630kg。工艺方法①先将砂岩、粉煤灰和硫酸渣三种辅助原料按上述重量配料后送入原料磨,同时加水进行湿磨,磨后的料浆泵入辅助原料料浆库备用;②将电石 ...
【技术保护点】
一种电石渣100%替代天然石灰质原料干法生产的水泥熟料,其特征在于:制备1吨水泥熟料时所用原料及重量(kg)为:电石渣:700-850kg砂岩:50-150kg粉煤灰:70-170kg硫酸渣:10-50kg 水:500-630kg。
【技术特征摘要】
【专利技术属性】
技术研发人员:侯向群,郭庆人,李洪洲,俞捷,张翼,吴彬,
申请(专利权)人:新疆建材设计研究院有限公司,
类型:发明
国别省市:65[中国|新疆]
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