The invention relates to a sewage sludge shale ceramsite and a preparation method thereof, which relates to ceramsite of light energy-saving building materials and a preparation method thereof. The invention is composed of sewage sludge, shale ceramsite and additive composition; the method of the invention is to sewage sludge, shale and additives as raw materials, the shale is grinded into shale powder, then the sewage sludge, shale, admixture mixing kneading after granulation into the ball, and then into the kiln after drying, preheating, roasting, and into natural cooling kiln. The ceramsite by direct discharge of sewage treatment plant sewage sludge and shale as main raw materials, save a lot of land resources and shale mineral resources, and to clean and harmless disposal of sewage sludge is a good method; the method of the invention is simple, saving energy, saving resources, prepared by density grade ceramic the 300 to 700. The ceramsite of the invention can be widely used in lightweight aggregate blocks, light aggregate plates, lightweight aggregate concrete, etc., and can also be used as sewage treatment filter materials and water retaining agents for cultivation.
【技术实现步骤摘要】
本专利技术属于建筑材料
,具体涉及一种用于轻质节能建材的陶粒及其制备方法。
技术介绍
陶粒是以粘土、页岩、粉煤灰等为原材料,经加工成球形,再经高温快速焙烧膨胀而成,是一种轻质且有一定强度的内部为蜂窝多孔状的轻集料。陶粒可用于生产轻集料混凝土、混凝土砌块等建材产品,使用了陶粒的混凝土产品可以明显降低建筑物自重、增强建筑物抗震能力、显著提高建筑物的保温隔热性能、大幅度降低建筑物的能耗等,其中,陶粒的轻质性能越好,建筑物的自重降低、保温隔热等性能提升也越大。同时,轻质陶粒不仅是建筑节能降耗的新型建筑材料,而且还在污水处理、花卉栽培等领域有广泛的应用前途。目前,我国陶粒的生产总体还处于小规模、高能耗、低品质、品种单一的状况,这很大程度上是由于很多陶粒厂家选择的原材料不合理、制备工艺不合理等导致的。另外,我国陶粒市场还主要是以普通陶粒为主,缺乏轻质陶粒,特别是超轻陶粒产品,而建筑节能又对轻质陶粒,特别是超轻陶粒有大量需求。因此,研究陶粒的原料配方,开发合理的制备方法,增加轻质陶粒产品的比例,是陶粒工业发展的一个重要方向。目前,我国轻质陶粒产品主要以粘土陶粒为主,以 ...
【技术保护点】
一种污水污泥页岩陶粒,其特征在于组分及重量百分数如下: 页岩:50~95% 污水污泥:5~50% 外加剂:0~5% 其中:污水污泥为污水处理厂直接排放的污水污泥,其含水率允许达到90%;页岩为普通页岩;外加剂为普通石灰石粉或电石渣粉。
【技术特征摘要】
【专利技术属性】
技术研发人员:钱觉时,吕剑,范英儒,陈平,陈伟,杨诚,王智,李有光,王兴国,
申请(专利权)人:重庆大业污泥处理有限公司,重庆大学,
类型:发明
国别省市:85[中国|重庆]
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