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Method for preparing environment-friendly brick from potassium feldspar tailings
The invention discloses a method for preparing an environment-friendly brick from potassium feldspar tailings. The method comprises the following technical steps: 1) treatment of the potassium feldspar tailings; 2) primary mixing: fully mixing the potassium feldspar tailings with sludge to obtain sandy clay; 3) secondary mixing: mixing 60-70% by mass of the sandy clay obtained in the previous stepwith 30-40% by mass of fly ash, and carrying out uniform stirring to form a mixture; 4) digestion: adding the stirred secondary mixture into a continuous digestion bin for digestion; 5) compression molding: carrying out compression molding on the digested second mixture under a vacuum condition to obtain a green brick, and naturally airing the green brick until a water content is 15-19% to obtainan aired green brick; 6) sintering of the green brick: putting the aired green brick into a kiln for firing; and 7) sealing of the kiln for cooling: sealing the kiln and conducting water seepage cooling. The environment-friendly brick prepared by using the method disclosed by the invention conforms to the MU25 grade in the national standard 5101-2003 in China, and has obvious advantages.
本发明公开了一种利用钾长石尾矿制备环保砖的方法，包括如下技术步骤：1)钾长石尾矿的处理；2)第一次混合：与污泥进行充分混合，得到沙质粘土；3)第二次混合：将上步骤得到的沙质粘土、粉煤灰按质量比例60‑70％、30‑40％进行混合，搅拌均匀，形成混合料；4)消化：将搅拌后的第二次混合料加入连续式消化仓进行消化；5)压制成型：将消化后的第二混合料在真空条件下加压压制成型，得到砖坯，将砖坯自然晾干至含水量为15‑19％，得晾干砖坯；6)砖坯烧结：将晾干砖坯入窑烧制；7)封窑冷却：将窑炉密封并渗水冷却。本发明方法制备得到环保砖，符合国标5101‑2003中的MU25等级，优势明显。
Method for preparing environment-friendly brick from potassium feldspar tailings
The invention discloses a method for preparing an environment-friendly brick from potassium feldspar tailings. The method comprises the following technical steps: 1) treatment of the potassium feldspar tailings; 2) primary mixing: fully mixing the potassium feldspar tailings with sludge to obtain sandy clay; 3) secondary mixing: mixing 60-70% by mass of the sandy clay obtained in the previous stepwith 30-40% by mass of fly ash, and carrying out uniform stirring to form a mixture; 4) digestion: adding the stirred secondary mixture into a continuous digestion bin for digestion; 5) compression molding: carrying out compression molding on the digested second mixture under a vacuum condition to obtain a green brick, and naturally airing the green brick until a water content is 15-19% to obtainan aired green brick; 6) sintering of the green brick: putting the aired green brick into a kiln for firing; and 7) sealing of the kiln for cooling: sealing the kiln and conducting water seepage cooling. The environment-friendly brick prepared by using the method disclosed by the invention conforms to the MU25 grade in the national standard 5101-2003 in China, and has obvious advantages.
本发明公开了一种利用钾长石尾矿制备环保砖的方法，包括如下技术步骤：1)钾长石尾矿的处理；2)第一次混合：与污泥进行充分混合，得到沙质粘土；3)第二次混合：将上步骤得到的沙质粘土、粉煤灰按质量比例60‑70％、30‑40％进行混合，搅拌均匀，形成混合料；4)消化：将搅拌后的第二次混合料加入连续式消化仓进行消化；5)压制成型：将消化后的第二混合料在真空条件下加压压制成型，得到砖坯，将砖坯自然晾干至含水量为15‑19％，得晾干砖坯；6)砖坯烧结：将晾干砖坯入窑烧制；7)封窑冷却：将窑炉密封并渗水冷却。本发明方法制备得到环保砖，符合国标5101‑2003中的MU25等级，优势明显。
Method for preparing environment-friendly brick from potassium feldspar tailings
一种利用钾长石尾矿制备环保砖的方法
DENG PEIYOU (author)
2020-08-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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