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Processing method of calcium hydroxide powder
The invention relates to a processing method of calcium hydroxide powder, and belongs to the field of calcium hydroxide powder processing. The method comprises the following steps: a, a limestone rawmaterial is calcined and crushed into quick lime; b, water, a dispersing additive and a surfactant are added into quick lime for primary digestion, the water-material ratio for digestion is 0.65-0.8,the stirring speed of a digester is 700-750r/min, the outlet temperature of the digester is 65-70 DEG C, and the digestion time is 15 min; c, a dispersed hydrophobic moisture-proof additive is added for secondary digestion, water is not added in the secondary digestion, the stirring speed of the digester is 750-800r/min, the outlet temperature of the digester is 80-85 DEG C, and the digestion timeis 1 hour; d, dehydrating, drying and crushing are performed to generate calcium hydroxide powder, and the calcium hydroxide powder is input into a stock bin for storage. The calcium hydroxide powderhas the advantages of high reaction activity, good fluidity, large specific surface area, high crystallinity and strong hydrophobicity, and is suitable for being used as a chlorine scavenger.
本发明涉及一种氢氧化钙粉体的加工方法，属于氢氧化钙粉体加工领域。包括如下步骤：a.将石灰石原料煅烧、破碎成生石灰；b.将生石灰加水、分散添加剂、表面活性剂进行一次消化，消化用水料比为0.65～0.8，消化器搅拌转速为700转/分～750转/分，消化器出口温度为65～70℃，消化时间为15min；c.再加入分散疏水防潮添加剂进行二次消化，二级消化中不加水，消化器搅拌转速为750转/分～800转/分，消化器出口温度为80～85℃，消化时间为1小时；d.经脱水、干燥和粉碎生成氢氧化钙粉体输入到料仓中储存；本发明具有反应活性高、流动性好、比表面积大、结晶度高且疏水性强，适用于作为氯气清除剂。
Processing method of calcium hydroxide powder
The invention relates to a processing method of calcium hydroxide powder, and belongs to the field of calcium hydroxide powder processing. The method comprises the following steps: a, a limestone rawmaterial is calcined and crushed into quick lime; b, water, a dispersing additive and a surfactant are added into quick lime for primary digestion, the water-material ratio for digestion is 0.65-0.8,the stirring speed of a digester is 700-750r/min, the outlet temperature of the digester is 65-70 DEG C, and the digestion time is 15 min; c, a dispersed hydrophobic moisture-proof additive is added for secondary digestion, water is not added in the secondary digestion, the stirring speed of the digester is 750-800r/min, the outlet temperature of the digester is 80-85 DEG C, and the digestion timeis 1 hour; d, dehydrating, drying and crushing are performed to generate calcium hydroxide powder, and the calcium hydroxide powder is input into a stock bin for storage. The calcium hydroxide powderhas the advantages of high reaction activity, good fluidity, large specific surface area, high crystallinity and strong hydrophobicity, and is suitable for being used as a chlorine scavenger.
本发明涉及一种氢氧化钙粉体的加工方法，属于氢氧化钙粉体加工领域。包括如下步骤：a.将石灰石原料煅烧、破碎成生石灰；b.将生石灰加水、分散添加剂、表面活性剂进行一次消化，消化用水料比为0.65～0.8，消化器搅拌转速为700转/分～750转/分，消化器出口温度为65～70℃，消化时间为15min；c.再加入分散疏水防潮添加剂进行二次消化，二级消化中不加水，消化器搅拌转速为750转/分～800转/分，消化器出口温度为80～85℃，消化时间为1小时；d.经脱水、干燥和粉碎生成氢氧化钙粉体输入到料仓中储存；本发明具有反应活性高、流动性好、比表面积大、结晶度高且疏水性强，适用于作为氯气清除剂。
Processing method of calcium hydroxide powder
一种氢氧化钙粉体的加工方法
YIN YONGGUO (author) / YIN HUI (author) / LYU PENG (author)
2020-08-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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