A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses environment-friendly ceramsite and a preparation method thereof, belonging to the technical field of waste treatment and building materials. The environment-friendly ceramsiteis prepared from the following raw materials in parts by mass: 35-60 parts of lake sludge, 25-45 parts of cow dung and 10-25 parts of hearth ash. The preparation method comprises the specific following steps: mixing the lake sludge and the cow dung according to a certain ratio and carrying out uniform stirring to obtain sludge slurry; then according to a certain proportion, weighing the hearth ash, adding the hearth ash into the sludge slurry, and carrying out uniform stirring so as to obtain mixed slurry; then subjecting the mixed slurry to hermetic aging for 24 hours under the condition of aroom temperature; pouring the aged mixed slurry into a granulator to prepare raw material particles; putting the prepared raw material particles into a rotary kiln, carrying out preheating for a period of time, and conducting sintering according to a certain temperature schedule; and performing air cooling to room temperature so as to obtain the environment-friendly ceramsite with a particle sizeof 20-38 mm, a density grade of 400-600, stacking density of 296-523 kg/m<3>, cylinder compressive strength of 2.2-3.5 MPa, a one-hour water absorption rate of 7.8-10.0% and a heat conductivity coefficient of 0.35-0.54 W/(m.K). According to the invention, the recycling of wastes such as the lake sludge, the cow dung and the hearth ash is realized, environmental pollution is reduced, and the production cost of building materials is reduced.
一种环保陶粒及其制备方法，属于废弃物处理及建筑材料技术领域。用于制备该环保陶粒所用的原料及其质量份数为：湖泊淤泥35～60份，牛粪25～45份，灶膛灰10～25份。具体制备方法是先将湖泊淤泥和牛粪按照一定配比混合，搅拌均匀，得到淤泥浆料，接着按照一定配比，称量河灶膛灰，加入淤泥浆料中，搅拌均匀，得到混合浆料，然后在室温条件下密封陈化24小时，倒入制粒机，制得生料颗粒，将制得生料颗粒置于回转窑中，预热一段时间后，按照一定的温度制度进行烧结，接着空冷至室温，得到粒径20～38mm、密度等级400～600、堆积密度296～523kg/m、筒压强度2.2～3.5MPa、1小时吸水率7.8～10.0％、导热系数0.35‑0.54W/(m·K)的环保陶粒，实现了湖泊淤泥、牛粪和灶膛灰等废弃物的再利用，减轻了环境污染，降低了建筑材料的生产成本。
The invention discloses environment-friendly ceramsite and a preparation method thereof, belonging to the technical field of waste treatment and building materials. The environment-friendly ceramsiteis prepared from the following raw materials in parts by mass: 35-60 parts of lake sludge, 25-45 parts of cow dung and 10-25 parts of hearth ash. The preparation method comprises the specific following steps: mixing the lake sludge and the cow dung according to a certain ratio and carrying out uniform stirring to obtain sludge slurry; then according to a certain proportion, weighing the hearth ash, adding the hearth ash into the sludge slurry, and carrying out uniform stirring so as to obtain mixed slurry; then subjecting the mixed slurry to hermetic aging for 24 hours under the condition of aroom temperature; pouring the aged mixed slurry into a granulator to prepare raw material particles; putting the prepared raw material particles into a rotary kiln, carrying out preheating for a period of time, and conducting sintering according to a certain temperature schedule; and performing air cooling to room temperature so as to obtain the environment-friendly ceramsite with a particle sizeof 20-38 mm, a density grade of 400-600, stacking density of 296-523 kg/m<3>, cylinder compressive strength of 2.2-3.5 MPa, a one-hour water absorption rate of 7.8-10.0% and a heat conductivity coefficient of 0.35-0.54 W/(m.K). According to the invention, the recycling of wastes such as the lake sludge, the cow dung and the hearth ash is realized, environmental pollution is reduced, and the production cost of building materials is reduced.
一种环保陶粒及其制备方法，属于废弃物处理及建筑材料技术领域。用于制备该环保陶粒所用的原料及其质量份数为：湖泊淤泥35～60份，牛粪25～45份，灶膛灰10～25份。具体制备方法是先将湖泊淤泥和牛粪按照一定配比混合，搅拌均匀，得到淤泥浆料，接着按照一定配比，称量河灶膛灰，加入淤泥浆料中，搅拌均匀，得到混合浆料，然后在室温条件下密封陈化24小时，倒入制粒机，制得生料颗粒，将制得生料颗粒置于回转窑中，预热一段时间后，按照一定的温度制度进行烧结，接着空冷至室温，得到粒径20～38mm、密度等级400～600、堆积密度296～523kg/m、筒压强度2.2～3.5MPa、1小时吸水率7.8～10.0％、导热系数0.35‑0.54W/(m·K)的环保陶粒，实现了湖泊淤泥、牛粪和灶膛灰等废弃物的再利用，减轻了环境污染，降低了建筑材料的生产成本。
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