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High-strength baking-free brick prepared from electric furnace ferronickel slag and preparation method of high-strength baking-free brick
The invention provides a high-strength baking-free brick prepared from electric furnace ferronickel slag and a preparation method of the high-strength baking-free brick. The method comprises the following steps: step 1, with ferronickel slag, cement, anhydrous gypsum and calcium hydroxide as raw materials, fully and uniformly mixing the raw materials by using a powerful mixer, wherein the ferronickel slag should be finely ground to allow the specific surface area of the ferronickel slag to reach 450-550 m<2>/kg, a mass part ratio of the cement to the ferronickel slag in the raw materials is 4:1 to 5: 1, the mass of the anhydrous gypsum is 1-2% of the total mass of the cement and the ferronickel slag, and the mass of the calcium hydroxide is 1-2% of the total mass of the cement and the ferronickel slag; step 2, adding water into the uniformly-mixed raw materials, carrying out sufficient stirring, and then putting the formed mixture into a grinding tool for vibration compression moldingto obtain a green body; and 3, carrying out room temperature maintenance on the green body in a closed workshop, keeping the brick body wet, and completing the maintenance to obtain the high-strengthbaking-free brick. According to the method, the baking-free brick with high strength can be prepared through a simple process, metallurgical solid waste ferronickel slag is effectively utilized, andenvironmental pollution is reduced.
本发明提供了利用电炉镍铁渣制备的高强度免烧砖及其制备方法，方法包括：步骤1.以镍铁渣、水泥、无水石膏及氢氧化钙为原料，使用强力混合机充分混匀；其中，镍铁渣应细磨，使其比表面积达到450～550m/kg；原料中水泥与镍铁渣的质量份数比为4:1～5:1；无水石膏的质量为水泥与镍铁渣总质量的1～2％；氢氧化钙的质量为水泥与镍铁渣总质量的1～2％；步骤2.向混匀后的原料中加入水，充分搅拌，然后放入磨具中振动压制成型，得到生坯；步骤3.将生坯在密闭厂房进行室温养护，并保持砖体潮湿，养护完成后得到高强度免烧砖。本方法通过简单的工艺就能够制备出具有高强度的免烧砖，有效利用了冶金固废镍铁渣，减少了环境污染。
High-strength baking-free brick prepared from electric furnace ferronickel slag and preparation method of high-strength baking-free brick
The invention provides a high-strength baking-free brick prepared from electric furnace ferronickel slag and a preparation method of the high-strength baking-free brick. The method comprises the following steps: step 1, with ferronickel slag, cement, anhydrous gypsum and calcium hydroxide as raw materials, fully and uniformly mixing the raw materials by using a powerful mixer, wherein the ferronickel slag should be finely ground to allow the specific surface area of the ferronickel slag to reach 450-550 m<2>/kg, a mass part ratio of the cement to the ferronickel slag in the raw materials is 4:1 to 5: 1, the mass of the anhydrous gypsum is 1-2% of the total mass of the cement and the ferronickel slag, and the mass of the calcium hydroxide is 1-2% of the total mass of the cement and the ferronickel slag; step 2, adding water into the uniformly-mixed raw materials, carrying out sufficient stirring, and then putting the formed mixture into a grinding tool for vibration compression moldingto obtain a green body; and 3, carrying out room temperature maintenance on the green body in a closed workshop, keeping the brick body wet, and completing the maintenance to obtain the high-strengthbaking-free brick. According to the method, the baking-free brick with high strength can be prepared through a simple process, metallurgical solid waste ferronickel slag is effectively utilized, andenvironmental pollution is reduced.
本发明提供了利用电炉镍铁渣制备的高强度免烧砖及其制备方法，方法包括：步骤1.以镍铁渣、水泥、无水石膏及氢氧化钙为原料，使用强力混合机充分混匀；其中，镍铁渣应细磨，使其比表面积达到450～550m/kg；原料中水泥与镍铁渣的质量份数比为4:1～5:1；无水石膏的质量为水泥与镍铁渣总质量的1～2％；氢氧化钙的质量为水泥与镍铁渣总质量的1～2％；步骤2.向混匀后的原料中加入水，充分搅拌，然后放入磨具中振动压制成型，得到生坯；步骤3.将生坯在密闭厂房进行室温养护，并保持砖体潮湿，养护完成后得到高强度免烧砖。本方法通过简单的工艺就能够制备出具有高强度的免烧砖，有效利用了冶金固废镍铁渣，减少了环境污染。
High-strength baking-free brick prepared from electric furnace ferronickel slag and preparation method of high-strength baking-free brick
利用电炉镍铁渣制备的高强度免烧砖及其制备方法
CHEN GUAIGUAI (author) / CHEN KANGKAI (author) / XIAO CHEN (author) / WU BANG (author) / ZHOU YUANDONG (author) / ZHANG ZIMO (author)
2020-05-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B28C
Tonaufbereitung
,
PREPARING CLAY
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