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A platform for research: civil engineering, architecture and urbanism
Ceramsite production process
The invention provides a ceramsite production process which comprises the following steps: (1) mixing: grinding 25-37 parts of clay into powder, adding 40-55 parts of waste incineration fly ash, 3-6 parts of hydroxyapatite powder, 5-9 parts of rice hull powder, 4-7 parts of mullite powder, 3-5 parts of shell powder and 0.5-1 part of sodium silicate, and uniformly mixing to obtain a mixture; (2) pelletizing: adding water into the mixture, uniformly stirring, and pelletizing to obtain ceramsite raw material balls; (3) drying; (4) calcining: putting the dried ceramsite raw material balls into a rotary kiln, heating to 380-450 DEG C at a heating speed of 6-9 DEG C/min, and keeping the temperature for 15-30 minutes; increasing the temperature to 1080-1200 DEG C at the temperature increasing speed of 20-30 DEG C/min, and performing heat preservation for 12-20 min; and naturally cooling in the furnace, and taking out when the temperature is reduced to 180-210 DEG C to obtain the ceramsite. The ceramsite prepared by the method is low in density, high in cylinder compressive strength and high in porosity, and has a wide application prospect in the field of building materials.
本发明提供了一种陶粒生产工艺，包括以下步骤：(1)混料：将25‑37份黏土磨成粉后，加入垃圾焚烧飞灰40‑55份、3‑6份羟基磷灰石粉、5‑9份稻壳粉、4‑7份莫来石粉、3‑5份贝壳粉、0.5‑1份硅酸钠，混合均匀，得混合料；(2)造球：向混合料中加入水，搅匀后进行造球，得陶粒生料球；(3)烘干；(4)煅烧：将干燥后的陶粒生料球置于回旋窑中，以6‑9℃/min的升温速度升温至380‑450℃，保温15‑30min；再以20‑30℃/min的升温速度升温至1080‑1200℃，保温12‑20min；炉内自然降温，降至180‑210℃时，取出，即得所述陶粒。本发明制备得到的陶粒密度低、筒压强度高、孔隙率高，在建筑材料领域应用前景广泛。
Ceramsite production process
The invention provides a ceramsite production process which comprises the following steps: (1) mixing: grinding 25-37 parts of clay into powder, adding 40-55 parts of waste incineration fly ash, 3-6 parts of hydroxyapatite powder, 5-9 parts of rice hull powder, 4-7 parts of mullite powder, 3-5 parts of shell powder and 0.5-1 part of sodium silicate, and uniformly mixing to obtain a mixture; (2) pelletizing: adding water into the mixture, uniformly stirring, and pelletizing to obtain ceramsite raw material balls; (3) drying; (4) calcining: putting the dried ceramsite raw material balls into a rotary kiln, heating to 380-450 DEG C at a heating speed of 6-9 DEG C/min, and keeping the temperature for 15-30 minutes; increasing the temperature to 1080-1200 DEG C at the temperature increasing speed of 20-30 DEG C/min, and performing heat preservation for 12-20 min; and naturally cooling in the furnace, and taking out when the temperature is reduced to 180-210 DEG C to obtain the ceramsite. The ceramsite prepared by the method is low in density, high in cylinder compressive strength and high in porosity, and has a wide application prospect in the field of building materials.
本发明提供了一种陶粒生产工艺，包括以下步骤：(1)混料：将25‑37份黏土磨成粉后，加入垃圾焚烧飞灰40‑55份、3‑6份羟基磷灰石粉、5‑9份稻壳粉、4‑7份莫来石粉、3‑5份贝壳粉、0.5‑1份硅酸钠，混合均匀，得混合料；(2)造球：向混合料中加入水，搅匀后进行造球，得陶粒生料球；(3)烘干；(4)煅烧：将干燥后的陶粒生料球置于回旋窑中，以6‑9℃/min的升温速度升温至380‑450℃，保温15‑30min；再以20‑30℃/min的升温速度升温至1080‑1200℃，保温12‑20min；炉内自然降温，降至180‑210℃时，取出，即得所述陶粒。本发明制备得到的陶粒密度低、筒压强度高、孔隙率高，在建筑材料领域应用前景广泛。
Ceramsite production process
一种陶粒生产工艺
LIN SHAOBIN (author) / WU BOLIN (author) / YAO LEI (author)
2020-08-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Ceramsite composite heat-preservation brick production process
| European Patent Office | 2020