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Preparation method of coal slime-spontaneous combustion coal gangue ceramsite
A preparation method of coal slime-spontaneous combustion coal gangue ceramsite belongs to the technical field of building materials, and adopts coal slime as a main material, spontaneous combustion coal gangue as an auxiliary material and stearic acid as a pore-forming agent, the coal slime-spontaneous combustion coal gangue ceramsite comprises the following components in percentage by weight: 50-70% of coal slime, 30-50% of spontaneous combustion coal gangue, and the pore-forming agent accounting for 4-10% of the sum of the mass of the coal slime and the spontaneous combustion coal gangue. The production process comprises the following steps: burdening, grinding, sieving, mixing, pelletizing, drying, roasting and cooling. According to the method, pores left by thermal decomposition of the pore-forming agent in the high-temperature reaction process are used for puffing pore-forming, the carbon content in the coal slime reduces the excessive consumption of fuel, the pore structure of the green body is improved, and the ceramsite with rough surface, rich pore structure and different sizes of closed pores is produced under the combined action of the spontaneous combustion coal gangue and the pore-forming agent stearic acid. The production process is simple, the cost is low, a large amount of coal-based solid waste is consumed, the ceramsite stacking density is low, the cylinder compressive strength is high, and development of local prefabricated buildings can be promoted.
一种煤泥‑自燃煤矸石陶粒的制备方法，属于建筑材料技术领域，本发明以煤泥为主料，自燃煤矸石为辅料，硬脂酸为造孔剂，按重量百分比：煤泥50％～70％、自燃煤矸石30％～50％，然后造孔剂占二者质量之和的4％～10％。生产工艺包括：配料、粉磨、过筛、混合、制球、烘干、焙烧和冷却。该方法利用高温反应过程中造孔剂热分解留下孔洞进行膨化造孔，煤泥中的碳含量降低了燃料的过耗，提高了坯体孔隙结构，搭配自燃煤矸石和造孔剂硬脂酸共同作用，生产出具有粗糙表面，丰富孔道结构和不同尺寸闭口孔的陶粒。本发明生产工艺简单，成本低，消纳大量煤基固废，陶粒堆积密度低、筒压强度高，可助力当地装配式建筑的发展。
Preparation method of coal slime-spontaneous combustion coal gangue ceramsite
A preparation method of coal slime-spontaneous combustion coal gangue ceramsite belongs to the technical field of building materials, and adopts coal slime as a main material, spontaneous combustion coal gangue as an auxiliary material and stearic acid as a pore-forming agent, the coal slime-spontaneous combustion coal gangue ceramsite comprises the following components in percentage by weight: 50-70% of coal slime, 30-50% of spontaneous combustion coal gangue, and the pore-forming agent accounting for 4-10% of the sum of the mass of the coal slime and the spontaneous combustion coal gangue. The production process comprises the following steps: burdening, grinding, sieving, mixing, pelletizing, drying, roasting and cooling. According to the method, pores left by thermal decomposition of the pore-forming agent in the high-temperature reaction process are used for puffing pore-forming, the carbon content in the coal slime reduces the excessive consumption of fuel, the pore structure of the green body is improved, and the ceramsite with rough surface, rich pore structure and different sizes of closed pores is produced under the combined action of the spontaneous combustion coal gangue and the pore-forming agent stearic acid. The production process is simple, the cost is low, a large amount of coal-based solid waste is consumed, the ceramsite stacking density is low, the cylinder compressive strength is high, and development of local prefabricated buildings can be promoted.
一种煤泥‑自燃煤矸石陶粒的制备方法，属于建筑材料技术领域，本发明以煤泥为主料，自燃煤矸石为辅料，硬脂酸为造孔剂，按重量百分比：煤泥50％～70％、自燃煤矸石30％～50％，然后造孔剂占二者质量之和的4％～10％。生产工艺包括：配料、粉磨、过筛、混合、制球、烘干、焙烧和冷却。该方法利用高温反应过程中造孔剂热分解留下孔洞进行膨化造孔，煤泥中的碳含量降低了燃料的过耗，提高了坯体孔隙结构，搭配自燃煤矸石和造孔剂硬脂酸共同作用，生产出具有粗糙表面，丰富孔道结构和不同尺寸闭口孔的陶粒。本发明生产工艺简单，成本低，消纳大量煤基固废，陶粒堆积密度低、筒压强度高，可助力当地装配式建筑的发展。
Preparation method of coal slime-spontaneous combustion coal gangue ceramsite
一种煤泥-自燃煤矸石陶粒的制备方法
ZHOU MEI (author) / TIAN YU (author) / WANG JINGJING (author) / WANG XINYI (author)
2022-12-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2021