Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of light calcium carbonate
The invention provides a preparation method of light calcium carbonate. The preparation method comprises the following steps: S1, crushing: crushing a limestone raw material to obtain a crushed material; S2, calcining, namely calcining the crushed material in the step S1 in a calcining furnace to obtain coarse calcium oxide; S3, digesting, namely digesting the crude calcium oxide obtained in the step S2 in an ashing machine to obtain a calcium hydroxide turbid solution; S4, purification: filtering the calcium hydroxide turbid liquid in S3 to obtain a calcium hydroxide clear liquid; S5, carbonization: introducing carbon dioxide gas into the calcium hydroxide clear liquid in the step S4 to obtain calcium carbonate precipitate; S6, dehydration: filtering and dehydrating the calcium carbonateprecipitate in S5 to obtain a calcium carbonate solid; S7, drying: drying the calcium carbonate solid in S6 to obtain calcium carbonate powder; and S8, screening, specifically, screening the calcium carbonate powder obtained in the S7 through a sorting machine to obtain calcium carbonate finished products with different fineness.
本发明提供了一种轻质碳酸钙的制备方法，包括以下步骤，S1破碎，对石灰石原料进行破碎，得到破碎料；S2煅烧，将S1中的破碎料放入煅烧炉内进行煅烧，得到粗制氧化钙；S3消化，加工S2中粗制氧化钙放入化灰机中进行消化，得到氢氧化钙浑浊液；S4净化，将S3中的氢氧化钙浑浊液进行过滤，得到氢氧化钙清液；S5碳化，向S4中的氢氧化钙清液内通入二氧化碳气体，得到碳酸钙沉淀；S6脱水，将S5中的碳酸钙沉淀过滤并脱水，得到碳酸钙固体；S7干燥，对S6中的碳酸钙固体进行干燥，得到碳酸钙粉末；S8筛分，对S7得到的碳酸钙粉末利用分选机进行筛分，得到不同细度的碳酸钙成品。
Preparation method of light calcium carbonate
The invention provides a preparation method of light calcium carbonate. The preparation method comprises the following steps: S1, crushing: crushing a limestone raw material to obtain a crushed material; S2, calcining, namely calcining the crushed material in the step S1 in a calcining furnace to obtain coarse calcium oxide; S3, digesting, namely digesting the crude calcium oxide obtained in the step S2 in an ashing machine to obtain a calcium hydroxide turbid solution; S4, purification: filtering the calcium hydroxide turbid liquid in S3 to obtain a calcium hydroxide clear liquid; S5, carbonization: introducing carbon dioxide gas into the calcium hydroxide clear liquid in the step S4 to obtain calcium carbonate precipitate; S6, dehydration: filtering and dehydrating the calcium carbonateprecipitate in S5 to obtain a calcium carbonate solid; S7, drying: drying the calcium carbonate solid in S6 to obtain calcium carbonate powder; and S8, screening, specifically, screening the calcium carbonate powder obtained in the S7 through a sorting machine to obtain calcium carbonate finished products with different fineness.
本发明提供了一种轻质碳酸钙的制备方法，包括以下步骤，S1破碎，对石灰石原料进行破碎，得到破碎料；S2煅烧，将S1中的破碎料放入煅烧炉内进行煅烧，得到粗制氧化钙；S3消化，加工S2中粗制氧化钙放入化灰机中进行消化，得到氢氧化钙浑浊液；S4净化，将S3中的氢氧化钙浑浊液进行过滤，得到氢氧化钙清液；S5碳化，向S4中的氢氧化钙清液内通入二氧化碳气体，得到碳酸钙沉淀；S6脱水，将S5中的碳酸钙沉淀过滤并脱水，得到碳酸钙固体；S7干燥，对S6中的碳酸钙固体进行干燥，得到碳酸钙粉末；S8筛分，对S7得到的碳酸钙粉末利用分选机进行筛分，得到不同细度的碳酸钙成品。
Preparation method of light calcium carbonate
一种轻质碳酸钙的制备方法
YANG JIANLIN (Autor:in)
29.12.2020
Patent
Elektronische Ressource
Chinesisch
Preparation method of cubic superfine light calcium carbonate
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