Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-carbon energy-saving preparation process of calcium oxide and calcium oxide product
The invention provides a low-carbon energy-saving preparation process of calcium oxide and a calcium oxide product, and relates to the technical field of inorganic material processing. Compared with the prior art, the low-carbon energy-saving calcium oxide preparation process provided by the invention does not need to be mixed with coal for roasting, meanwhile, the influence of fly ash and flue gas generated in the combustion process of coal and natural gas on calcium oxide can be avoided, and the cost is greatly saved. According to the manufacturing process, calcium carbonate raw ore is subjected to primary oxygenolysis in a high-temperature roasting mode in a semi-closed environment, most of the calcium carbonate raw ore is decomposed into calcium oxide in the mode, then high-temperature roasted products are stacked in a heat preservation environment and subjected to secondary oxygenolysis, and after decomposition is completed, the calcium carbonate raw ore is obtained. The rest calcium carbonate raw ore can be completely oxidized and decomposed into calcium oxide, so that a calcium oxide product which is almost free of impurities and has the purity of 98% or above and the whiteness of 92% or above is obtained.
本发明提出一种氧化钙的低碳节能制作工艺及氧化钙产品，涉及无机材料加工技术领域。与现有技术相比，本申请提出的低碳节能氧化钙制作工艺无需与煤混合进行焙烧，同时还可避免煤以及天然气在燃烧过程中产生的飞灰以及烟气对氧化钙造成影响，而且成本大大节省。该制作工艺通过在半封闭环境下进行高温焙烧的方式对碳酸钙原矿石进行一次氧化分解，并以此方式使得其中大部分碳酸钙原矿石分解为氧化钙，然后将高温的焙烧品在保温环境下进行堆积，进行二次氧化分解，经分解完成后，可将剩余部分的碳酸钙原矿石完全氧化分解为氧化钙，以此获得几乎无杂质，且纯度在98％以上且白度在92％以上的氧化钙产品。
Low-carbon energy-saving preparation process of calcium oxide and calcium oxide product
The invention provides a low-carbon energy-saving preparation process of calcium oxide and a calcium oxide product, and relates to the technical field of inorganic material processing. Compared with the prior art, the low-carbon energy-saving calcium oxide preparation process provided by the invention does not need to be mixed with coal for roasting, meanwhile, the influence of fly ash and flue gas generated in the combustion process of coal and natural gas on calcium oxide can be avoided, and the cost is greatly saved. According to the manufacturing process, calcium carbonate raw ore is subjected to primary oxygenolysis in a high-temperature roasting mode in a semi-closed environment, most of the calcium carbonate raw ore is decomposed into calcium oxide in the mode, then high-temperature roasted products are stacked in a heat preservation environment and subjected to secondary oxygenolysis, and after decomposition is completed, the calcium carbonate raw ore is obtained. The rest calcium carbonate raw ore can be completely oxidized and decomposed into calcium oxide, so that a calcium oxide product which is almost free of impurities and has the purity of 98% or above and the whiteness of 92% or above is obtained.
本发明提出一种氧化钙的低碳节能制作工艺及氧化钙产品，涉及无机材料加工技术领域。与现有技术相比，本申请提出的低碳节能氧化钙制作工艺无需与煤混合进行焙烧，同时还可避免煤以及天然气在燃烧过程中产生的飞灰以及烟气对氧化钙造成影响，而且成本大大节省。该制作工艺通过在半封闭环境下进行高温焙烧的方式对碳酸钙原矿石进行一次氧化分解，并以此方式使得其中大部分碳酸钙原矿石分解为氧化钙，然后将高温的焙烧品在保温环境下进行堆积，进行二次氧化分解，经分解完成后，可将剩余部分的碳酸钙原矿石完全氧化分解为氧化钙，以此获得几乎无杂质，且纯度在98％以上且白度在92％以上的氧化钙产品。
Low-carbon energy-saving preparation process of calcium oxide and calcium oxide product
一种氧化钙的低碳节能制作工艺及氧化钙产品
WEE JUNG-HYUN (Autor:in)
10.06.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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