A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preparing ceramsite by mixing municipal domestic sludge and shale
The invention provides a method for preparing ceramsite by mixing municipal domestic sludge and shale. The method comprises the following steps: mixing and aging raw materials; stirring and mixing municipal domestic sludge and shale powder with the fineness smaller than or equal to 80 meshes and the water content smaller than 3% according to the proportion of 20-25% of sludge and 75-80% of shale powder; feeding the fully and uniformly mixed materials into a three-dimensional aging warehouse, and aging, so that the plasticity of the raw materials is improved, wherein the moisture content of theaged mixed material is 16-18%; granulating a semi-finished product; putting the aged mixture in the step 1 into a granulator, and carrying out extrusion granulation to obtain pellets; roasting the ceramsite; and feeding the dried pellets into a ceramsite rotary kiln, and carrying out high-temperature firing, wherein raw pellets enter from a kiln tail low-temperature section and flow out from a kiln head high-temperature section, the temperature of the pellets is gradually increased from low temperature, when the temperature reaches 1150-1250 DEG C, firing is completed, and the fired ceramsiteclinker is cooled and can be packaged and sold. According to the invention, the problems of low sludge ratio, low municipal sludge consumption and high production cost in the conventional sludge ceramsite are solved.
本发明提供了一种利用市政生活污泥与页岩混合制备陶粒的方法，包括下列步骤：原料混合陈化；将市政生活污泥与细度小于等于80目、含水量小于3％的页岩粉料按污泥20‑25％，页岩粉料75‑80％的比例搅拌混合；充分混合均匀的物料进入立体陈化库进行陈化，提高原料的塑性；经陈化后混合物料的含水率16‑18％；半成品造粒；将步骤1中陈化后的混合物料放入造粒机中挤压造粒得到料球；陶粒焙烧；经烘干后的料球进入陶粒回转窑进行高温烧制，生料球从窑尾低温段进入，窑头高温段流出，料球温度从低温逐步升高，温度达到1150℃‑1250℃时，完成烧制，烧制完成的陶粒熟料冷却降温，即可包装销售。本发明解决了常规污泥陶粒中污泥占比较低、消耗市政污泥的量较少，生产成本高的问题。
Method for preparing ceramsite by mixing municipal domestic sludge and shale
The invention provides a method for preparing ceramsite by mixing municipal domestic sludge and shale. The method comprises the following steps: mixing and aging raw materials; stirring and mixing municipal domestic sludge and shale powder with the fineness smaller than or equal to 80 meshes and the water content smaller than 3% according to the proportion of 20-25% of sludge and 75-80% of shale powder; feeding the fully and uniformly mixed materials into a three-dimensional aging warehouse, and aging, so that the plasticity of the raw materials is improved, wherein the moisture content of theaged mixed material is 16-18%; granulating a semi-finished product; putting the aged mixture in the step 1 into a granulator, and carrying out extrusion granulation to obtain pellets; roasting the ceramsite; and feeding the dried pellets into a ceramsite rotary kiln, and carrying out high-temperature firing, wherein raw pellets enter from a kiln tail low-temperature section and flow out from a kiln head high-temperature section, the temperature of the pellets is gradually increased from low temperature, when the temperature reaches 1150-1250 DEG C, firing is completed, and the fired ceramsiteclinker is cooled and can be packaged and sold. According to the invention, the problems of low sludge ratio, low municipal sludge consumption and high production cost in the conventional sludge ceramsite are solved.
本发明提供了一种利用市政生活污泥与页岩混合制备陶粒的方法，包括下列步骤：原料混合陈化；将市政生活污泥与细度小于等于80目、含水量小于3％的页岩粉料按污泥20‑25％，页岩粉料75‑80％的比例搅拌混合；充分混合均匀的物料进入立体陈化库进行陈化，提高原料的塑性；经陈化后混合物料的含水率16‑18％；半成品造粒；将步骤1中陈化后的混合物料放入造粒机中挤压造粒得到料球；陶粒焙烧；经烘干后的料球进入陶粒回转窑进行高温烧制，生料球从窑尾低温段进入，窑头高温段流出，料球温度从低温逐步升高，温度达到1150℃‑1250℃时，完成烧制，烧制完成的陶粒熟料冷却降温，即可包装销售。本发明解决了常规污泥陶粒中污泥占比较低、消耗市政污泥的量较少，生产成本高的问题。
Method for preparing ceramsite by mixing municipal domestic sludge and shale
一种利用市政生活污泥与页岩混合制备陶粒的方法
GU SHUHAO (author) / ZHANG QIANGJIE (author) / CHENG ZHIPENG (author) / DENG PENG (author)
2020-12-29
Patent
Electronic Resource
Chinese
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