Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Corundum-mullite composite shell phase change heat storage ball and preparation method thereof
The invention relates to a corundum-mullite composite shell phase change heat storage ball and a preparation method thereof. According to the technical scheme, the preparation method comprises the following steps: sequentially adding an organic burn-out substance and a metal ball into paraffin melt, and performing cooling to obtain an organic matter coated metal ball; adding the alumina refractoryslurry A and the organic matter coated metal ball into a disc granulator for granulation, and drying; adding the prepared single-layer alumina composite phase-change heat storage ball green body andalumina refractory slurry B into the disc granulator for granulation, and drying; then adding the prepared double-layer alumina composite phase change heat storage ball green body and alumina refractory slurry C into the disc granulator for granulation, and drying; and finally, respectively preserving heat at 500-550 DEG C and 1100-1500 DEG C, and naturally cooling to obtain the corundum-mullite composite shell phase change heat storage ball. In-situ packaging is achieved, control is easy, industrial production is easy, and the prepared product is good in sealing performance, uniform in shellthickness, high in heat storage capacity, good in thermal shock stability, good in thermal cycle stability, long in service life, high in using temperature and high in heat utilization rate.
本发明涉及一种刚玉‑莫来石复合壳层相变蓄热球及其制备方法。其技术方案是：向石蜡熔体中先后加入有机烧失物和金属球，冷却，制得有机物包覆的金属球。将矾土质耐火浆料A和有机物包覆的金属球加入圆盘造粒机造粒，烘干；再将制得的单层矾土复合相变蓄热球坯体和将矾土质耐火浆料B加入圆盘造粒机造粒，烘干；然后将制得的双层矾土复合相变蓄热球坯体和矾土质耐火浆料C加入圆盘造粒机造粒，烘干；最后在500～550℃和1100～1500℃分别保温，自然冷却，制得刚玉‑莫来石复合壳层相变蓄热球。本发明原位封装、易于控制和易于工业化生产，所制制品密封性好、壳层厚薄均匀、蓄热量高、热震稳定性好、热循环稳定性好、寿命长、使用温度高和热量利用率高。
Corundum-mullite composite shell phase change heat storage ball and preparation method thereof
The invention relates to a corundum-mullite composite shell phase change heat storage ball and a preparation method thereof. According to the technical scheme, the preparation method comprises the following steps: sequentially adding an organic burn-out substance and a metal ball into paraffin melt, and performing cooling to obtain an organic matter coated metal ball; adding the alumina refractoryslurry A and the organic matter coated metal ball into a disc granulator for granulation, and drying; adding the prepared single-layer alumina composite phase-change heat storage ball green body andalumina refractory slurry B into the disc granulator for granulation, and drying; then adding the prepared double-layer alumina composite phase change heat storage ball green body and alumina refractory slurry C into the disc granulator for granulation, and drying; and finally, respectively preserving heat at 500-550 DEG C and 1100-1500 DEG C, and naturally cooling to obtain the corundum-mullite composite shell phase change heat storage ball. In-situ packaging is achieved, control is easy, industrial production is easy, and the prepared product is good in sealing performance, uniform in shellthickness, high in heat storage capacity, good in thermal shock stability, good in thermal cycle stability, long in service life, high in using temperature and high in heat utilization rate.
本发明涉及一种刚玉‑莫来石复合壳层相变蓄热球及其制备方法。其技术方案是：向石蜡熔体中先后加入有机烧失物和金属球，冷却，制得有机物包覆的金属球。将矾土质耐火浆料A和有机物包覆的金属球加入圆盘造粒机造粒，烘干；再将制得的单层矾土复合相变蓄热球坯体和将矾土质耐火浆料B加入圆盘造粒机造粒，烘干；然后将制得的双层矾土复合相变蓄热球坯体和矾土质耐火浆料C加入圆盘造粒机造粒，烘干；最后在500～550℃和1100～1500℃分别保温，自然冷却，制得刚玉‑莫来石复合壳层相变蓄热球。本发明原位封装、易于控制和易于工业化生产，所制制品密封性好、壳层厚薄均匀、蓄热量高、热震稳定性好、热循环稳定性好、寿命长、使用温度高和热量利用率高。
Corundum-mullite composite shell phase change heat storage ball and preparation method thereof
一种刚玉-莫来石复合壳层相变蓄热球及其制备方法
ZHANG MEIJIE (Autor:in) / XIA QIULIN (Autor:in) / GU HUAZHI (Autor:in) / HUANG AO (Autor:in) / FU LYUPING (Autor:in) / LI HAIFENG (Autor:in)
12.03.2021
Patent
Elektronische Ressource
Chinesisch
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