摘要：【中文】本发明涉及一种超重力微反应装置。其中微反应盘设置在转鼓和填料层组成的密闭腔中部。原料在高速旋转的微反应盘中均匀混合并快速流动，有效防止了微反应通道的堵塞，同时强化了混合原料在甩出雾化盘后的雾化效果。通过转动轴及联动装置实现了微反应盘与转鼓及填料层之间的同轴反向旋转，强化了传质效果，降低了产物的成核尺寸，提高了纳米材料的分散性和均匀性，减少了能耗。 【EN】The invention relates to a supergravity micro-reaction device. Wherein the micro-reaction disk is arranged in the middle of a closed cavity formed by the rotary drum and the filler layer. The raw materials are uniformly mixed and rapidly flow in the high-speed rotating micro-reaction disc, so that the blockage of a micro-reaction channel is effectively prevented, and the atomization effect of the mixed raw materials after being thrown out of the atomization disc is enhanced. Coaxial reverse rotation among the micro-reaction disk, the rotary drum and the packing layer is realized through the rotating shaft and the linkage device, the mass transfer effect is enhanced, the nucleation size of a product is reduced, the dispersibility and uniformity of the nano material are improved, and the energy consumption is reduced.

摘要：【中文】本发明公开了一种制备纳米二氧化硅的方法，该方法包括以下步骤：(1)配制含有硅源的溶液A和含有沉淀剂的溶液B；(2)将溶液A和溶液B加入到超重力微反应装置中反应得到前驱体浆料；(3)将前驱体浆料进行溶剂热处理；(4)将产物固液分离，并进行洗涤、干燥、焙烧处理得到纳米二氧化硅材料。本发明在超重力微反应装置中完成，该装置包括微反应盘和填料层，且二者之间同轴反向旋转，在使得原料快速均匀混合的同时，大大强化了传质效果，降低了产物的成核尺寸，提高了纳米材料的分散性和均匀性，减少了能耗。 【EN】The invention discloses a method for preparing nano silicon dioxide, which comprises the following steps: (1) preparing a solution A containing a silicon source and a solution B containing a precipitator; (2) adding the solution A and the solution B into a supergravity micro-reaction device to react to obtain precursor slurry; (3) carrying out solvent heat treatment on the precursor slurry; (4) and carrying out solid-liquid separation on the product, washing, drying and roasting to obtain the nano silicon dioxide material. The invention is completed in a supergravity micro-reaction device, which comprises a micro-reaction disc and a filler layer, wherein the micro-reaction disc and the filler layer coaxially and reversely rotate, so that the mass transfer effect is greatly enhanced, the nucleation size of a product is reduced, the dispersibility and uniformity of a nano material are improved, and the energy consumption is reduced while the raw materials are rapidly and uniformly mixed.