Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Resource utilization method of river sludge
The invention discloses a river sludge resource utilization method, which comprises the following steps: step 1, pulping: uniformly mixing river sludge, a 200-mesh main material, silicon-based chlorinated rice hull powder, a fluxing agent, a binder and a thixotropic agent in parts by mass, adding the mixture into a ball milling tank, performing ball milling for 60-120 minutes at the controlled temperature of normal temperature and the speed of 2000-3000 r/min, and filtering by using a 100-200-mesh filter screen, then adding a 100-200-mesh pore-forming agent, and uniformly mixing to obtain slurry; step 2, granulation: extruding the slurry onto a blast drying tunnel with the length of 50-100m, controlling the particle size of particles extruded onto the drying tunnel to be 1-2mm, controllingthe temperature of the drying tunnel to be 150-180 DEG C and controlling the heat preservation time to be 10-30min so as to obtain small dried balls; and 3, high-temperature sintering: putting the dried pellets into a ceramic sintering furnace, controlling the temperature to be 1040-1180 DEG C, keeping the temperature for 1-3h, and cooling to obtain the porous ceramic particles. According to themethod, the sludge is recycled, the additional value is increased, the obtained porous ceramic particles have the aperture ratio and the compressive strength at the same time, and continuous industrial production can be achieved.
本发明公开一种河道淤泥的资源化利用方法，包括如下步骤：步骤一，制浆：按照质量份数，将河道淤泥、200目的主料、硅基氯化稻壳粉、助熔剂、粘结剂、触变剂混合均匀，加入球磨罐中，控制温度为常温，2000‑3000r/min球磨60‑120min，用100‑200目的滤网过滤，然后加入100‑200目的造孔剂，混合均匀，得到浆料；步骤二，造粒：将浆料挤到50‑100m长的鼓风烘道上，控制挤到烘道上的颗粒粒径为1‑2mm，烘道温度为150‑180℃，保温时间为10‑30min，得到干燥小球；步骤三，高温烧结：将干燥小球放入陶瓷烧结炉中，控制温度为1040‑1180℃，保温1‑3h，降温，得到多孔陶瓷颗粒。通过本发明的方法，将淤泥资源化利用，提高了附加值，且得到的多孔陶瓷颗粒兼具开孔率和抗压强度，可以实现连续化工业生产。
Resource utilization method of river sludge
The invention discloses a river sludge resource utilization method, which comprises the following steps: step 1, pulping: uniformly mixing river sludge, a 200-mesh main material, silicon-based chlorinated rice hull powder, a fluxing agent, a binder and a thixotropic agent in parts by mass, adding the mixture into a ball milling tank, performing ball milling for 60-120 minutes at the controlled temperature of normal temperature and the speed of 2000-3000 r/min, and filtering by using a 100-200-mesh filter screen, then adding a 100-200-mesh pore-forming agent, and uniformly mixing to obtain slurry; step 2, granulation: extruding the slurry onto a blast drying tunnel with the length of 50-100m, controlling the particle size of particles extruded onto the drying tunnel to be 1-2mm, controllingthe temperature of the drying tunnel to be 150-180 DEG C and controlling the heat preservation time to be 10-30min so as to obtain small dried balls; and 3, high-temperature sintering: putting the dried pellets into a ceramic sintering furnace, controlling the temperature to be 1040-1180 DEG C, keeping the temperature for 1-3h, and cooling to obtain the porous ceramic particles. According to themethod, the sludge is recycled, the additional value is increased, the obtained porous ceramic particles have the aperture ratio and the compressive strength at the same time, and continuous industrial production can be achieved.
本发明公开一种河道淤泥的资源化利用方法，包括如下步骤：步骤一，制浆：按照质量份数，将河道淤泥、200目的主料、硅基氯化稻壳粉、助熔剂、粘结剂、触变剂混合均匀，加入球磨罐中，控制温度为常温，2000‑3000r/min球磨60‑120min，用100‑200目的滤网过滤，然后加入100‑200目的造孔剂，混合均匀，得到浆料；步骤二，造粒：将浆料挤到50‑100m长的鼓风烘道上，控制挤到烘道上的颗粒粒径为1‑2mm，烘道温度为150‑180℃，保温时间为10‑30min，得到干燥小球；步骤三，高温烧结：将干燥小球放入陶瓷烧结炉中，控制温度为1040‑1180℃，保温1‑3h，降温，得到多孔陶瓷颗粒。通过本发明的方法，将淤泥资源化利用，提高了附加值，且得到的多孔陶瓷颗粒兼具开孔率和抗压强度，可以实现连续化工业生产。
Resource utilization method of river sludge
一种河道淤泥的资源化利用方法
YE SUFEN (Autor:in) / CHU WEILIANG (Autor:in) / WANG YANCHUN (Autor:in) / ZHOU HUANTING (Autor:in) / DONG GENXI (Autor:in)
05.01.2021
Patent
Elektronische Ressource
Chinesisch
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