Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Process method for preparing sintered pavement brick from graphite tailings
The invention discloses a process method for preparing sintered pavement bricks from graphite tailings, which comprises the following steps: dehydrating and drying the graphite tailings, grinding and grading coal gangue solid waste, and adjusting the size of a grading screen for screening; the preparation method comprises the following steps: metering graphite tailings and coal gangue powder according to a ratio, putting the graphite tailings and the coal gangue powder into stirring equipment, uniformly stirring, adding water, fully stirring and mixing to obtain a mixture, putting the mixture into a forming mold, applying pressure, maintaining pressure and reversely applying pressure to the forming mold for demolding, and standing a prepared pavement brick test piece in an indoor natural environment for a period of time to obtain the pavement brick. According to the graphite tailing sintered pavement brick material prepared through the method, the water absorption rate is 6.8%, the compressive strength is 65 MPa, the saturation coefficient is 0.72, the freeze-thaw resistance mass loss is 0.34%, a proper path is provided for reduction and resourceful treatment of the graphite tailings, and the method has the advantages of being simple in process, low in cost and high in practicability. And the utilization rate of wastes is improved.
本发明公开了一种石墨尾矿制备烧结路面砖的工艺方法，包括：将石墨尾矿脱水干燥，煤矸石固废进行研磨分级，调整分级筛网尺寸进行筛选；将石墨尾矿和煤矸石粉料按比例进行计量，一起置于搅拌设备中，搅拌均匀后，加水，充分搅拌混合，得到混合料置于成型模具，向成型模具施加压力，保压，反向施压进行脱模，制得路面砖试件置于室内自然环境下静置一段时间，烘干后置于可编程控制马弗炉中焙烧得到石墨尾矿烧结路面砖，本发明的方法制得的石墨尾矿烧结路面砖材料吸水率为6.8％，抗压强度65MPa，饱和系数0.72，抗冻融质量损失0.34％，本发明为石墨尾矿的减量化、资源化处理提供了适宜的路径，提高了废弃物的利用率。
Process method for preparing sintered pavement brick from graphite tailings
The invention discloses a process method for preparing sintered pavement bricks from graphite tailings, which comprises the following steps: dehydrating and drying the graphite tailings, grinding and grading coal gangue solid waste, and adjusting the size of a grading screen for screening; the preparation method comprises the following steps: metering graphite tailings and coal gangue powder according to a ratio, putting the graphite tailings and the coal gangue powder into stirring equipment, uniformly stirring, adding water, fully stirring and mixing to obtain a mixture, putting the mixture into a forming mold, applying pressure, maintaining pressure and reversely applying pressure to the forming mold for demolding, and standing a prepared pavement brick test piece in an indoor natural environment for a period of time to obtain the pavement brick. According to the graphite tailing sintered pavement brick material prepared through the method, the water absorption rate is 6.8%, the compressive strength is 65 MPa, the saturation coefficient is 0.72, the freeze-thaw resistance mass loss is 0.34%, a proper path is provided for reduction and resourceful treatment of the graphite tailings, and the method has the advantages of being simple in process, low in cost and high in practicability. And the utilization rate of wastes is improved.
本发明公开了一种石墨尾矿制备烧结路面砖的工艺方法，包括：将石墨尾矿脱水干燥，煤矸石固废进行研磨分级，调整分级筛网尺寸进行筛选；将石墨尾矿和煤矸石粉料按比例进行计量，一起置于搅拌设备中，搅拌均匀后，加水，充分搅拌混合，得到混合料置于成型模具，向成型模具施加压力，保压，反向施压进行脱模，制得路面砖试件置于室内自然环境下静置一段时间，烘干后置于可编程控制马弗炉中焙烧得到石墨尾矿烧结路面砖，本发明的方法制得的石墨尾矿烧结路面砖材料吸水率为6.8％，抗压强度65MPa，饱和系数0.72，抗冻融质量损失0.34％，本发明为石墨尾矿的减量化、资源化处理提供了适宜的路径，提高了废弃物的利用率。
Process method for preparing sintered pavement brick from graphite tailings
一种石墨尾矿制备烧结路面砖的工艺方法
HU MINGWEI (Autor:in) / YE YINGCHUN (Autor:in) / MENG XIANGHAI (Autor:in) / HU RUI (Autor:in) / XU YUANCHENG (Autor:in) / XU ZHEN (Autor:in) / LAI WEI (Autor:in) / TANG YANG (Autor:in) / WANG BENZI (Autor:in) / YU YANGHUI (Autor:in)
13.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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