A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction waste pretreatment method with low environmental influence
The invention discloses a construction waste pretreatment method with low environmental influence, which comprises the following steps of: firstly, mechanically crushing construction wastes, winnowing to obtain waste fine powder and waste particles after mechanically crushing, and then collecting and dedusting the waste fine powder to obtain fine powder; and screening the waste particles to obtain fine aggregate, coarse aggregate and large-volume fragments, washing the fine powder, the fine aggregate and the coarse aggregate with water, then compressing and heating with dry air, air-drying the washed fine powder, the washed fine aggregate and the washed coarse aggregate to obtain product-grade fine powder, fine aggregate and coarse aggregate, and respectively storing the product-grade fine powder, fine aggregate and coarse aggregate. According to the method, high-quality building waste fine powder, fine aggregate and coarse aggregate are prepared through the processes of one-time winnowing, two-time water washing and one-time air drying, powdery particles attached to the surfaces of the fine aggregate and the coarse aggregate are cleaned through winnowing and two-stage water washing and recycled, the resource utilization rate is increased, and the method is suitable for large-scale application and popularization.
本发明公开了一种低环境影响的建筑废弃物预处理方法，首先对建筑废弃物进行机械粉碎，经过机械破碎后进行风选操作得到废弃物细粉和废弃物颗粒，然后对废弃物细粉进行收集除尘得到细粉，对废弃物颗粒进行筛分得到细骨料、粗骨料和大体积碎块，对细粉、细骨料和粗骨料进行水洗操作，然后利用干燥空气进行压缩加热，对水洗后的细粉、细骨料和粗骨料进行风干，然后得到产品级别的细粉、细骨料和粗骨料，然后分别进行存储。本发明通过一次风选、两次水洗和一次风干的过程实现了高品质的建筑废弃物细粉、细骨料、粗骨料制备，通过风选和二级水洗清洗细骨料和粗骨料表面粘附的粉末状颗粒物并将其回收，提高资源化利用率，适宜大量推广使用。
Construction waste pretreatment method with low environmental influence
The invention discloses a construction waste pretreatment method with low environmental influence, which comprises the following steps of: firstly, mechanically crushing construction wastes, winnowing to obtain waste fine powder and waste particles after mechanically crushing, and then collecting and dedusting the waste fine powder to obtain fine powder; and screening the waste particles to obtain fine aggregate, coarse aggregate and large-volume fragments, washing the fine powder, the fine aggregate and the coarse aggregate with water, then compressing and heating with dry air, air-drying the washed fine powder, the washed fine aggregate and the washed coarse aggregate to obtain product-grade fine powder, fine aggregate and coarse aggregate, and respectively storing the product-grade fine powder, fine aggregate and coarse aggregate. According to the method, high-quality building waste fine powder, fine aggregate and coarse aggregate are prepared through the processes of one-time winnowing, two-time water washing and one-time air drying, powdery particles attached to the surfaces of the fine aggregate and the coarse aggregate are cleaned through winnowing and two-stage water washing and recycled, the resource utilization rate is increased, and the method is suitable for large-scale application and popularization.
本发明公开了一种低环境影响的建筑废弃物预处理方法，首先对建筑废弃物进行机械粉碎，经过机械破碎后进行风选操作得到废弃物细粉和废弃物颗粒，然后对废弃物细粉进行收集除尘得到细粉，对废弃物颗粒进行筛分得到细骨料、粗骨料和大体积碎块，对细粉、细骨料和粗骨料进行水洗操作，然后利用干燥空气进行压缩加热，对水洗后的细粉、细骨料和粗骨料进行风干，然后得到产品级别的细粉、细骨料和粗骨料，然后分别进行存储。本发明通过一次风选、两次水洗和一次风干的过程实现了高品质的建筑废弃物细粉、细骨料、粗骨料制备，通过风选和二级水洗清洗细骨料和粗骨料表面粘附的粉末状颗粒物并将其回收，提高资源化利用率，适宜大量推广使用。
Construction waste pretreatment method with low environmental influence
一种低环境影响的建筑废弃物预处理方法
LI WENKAI (author) / CHENG WENHU (author) / LI JUN (author) / WANG ZHONGBIN (author) / PANG ZHENGTAO (author)
2023-10-24
Patent
Electronic Resource
Chinese
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