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High-temperature calcination method for hemihydrate gypsum
The invention discloses a high-temperature calcination method for hemihydrate gypsum, belonging to the field of gypsum powder calcination. The method comprises the following steps: 1, heating dihydrate gypsum powder by adopting high-temperature calcination equipment, and controlling the temperature of the heated dihydrate gypsum powder to be (160 +/- 10 DEG C); 2, conveying the calcined gypsum powder with a temperature higher than 150 DEG C into a waste-heat self-calcining bin body in an instant heat preservation state; 3, subjecting the gypsum powder obtained in the step 2 to heat preservation in the waste heat self-calcining bin body for 1 h or longer, and maintaining the temperature of the gypsum powder in the waste heat self-calcining bin body between 120 DEG C and 165 DEG C; and 4, outputting the gypsum powder which has undergone heat preservation time for 1 hour or more from the waste heat self-calcining bin body. The method has the characteristics of energy conservation and goodquality consistency.
一种半水石膏高温煅烧方法，属于石膏粉煅烧领域，包括以下步骤，1、将二水石膏粉采用高温煅烧设备加热，控制被加热后的二水石膏粉的温度在（160°C±10°C）；2、将煅烧过的温度大于150°C的石膏粉即时保温状态下输送到余热自煅烧仓体内；3、将步骤2的石膏粉在余热自煅烧仓体内保温1小时以上，并保持余热自煅烧仓体内的石膏粉的温度在120°C‑165°C之间；4、将保温时间在1小时以上的的石膏粉从余热自煅烧仓体输出，具有节省能源，质量一致性好的特点。
High-temperature calcination method for hemihydrate gypsum
The invention discloses a high-temperature calcination method for hemihydrate gypsum, belonging to the field of gypsum powder calcination. The method comprises the following steps: 1, heating dihydrate gypsum powder by adopting high-temperature calcination equipment, and controlling the temperature of the heated dihydrate gypsum powder to be (160 +/- 10 DEG C); 2, conveying the calcined gypsum powder with a temperature higher than 150 DEG C into a waste-heat self-calcining bin body in an instant heat preservation state; 3, subjecting the gypsum powder obtained in the step 2 to heat preservation in the waste heat self-calcining bin body for 1 h or longer, and maintaining the temperature of the gypsum powder in the waste heat self-calcining bin body between 120 DEG C and 165 DEG C; and 4, outputting the gypsum powder which has undergone heat preservation time for 1 hour or more from the waste heat self-calcining bin body. The method has the characteristics of energy conservation and goodquality consistency.
一种半水石膏高温煅烧方法，属于石膏粉煅烧领域，包括以下步骤，1、将二水石膏粉采用高温煅烧设备加热，控制被加热后的二水石膏粉的温度在（160°C±10°C）；2、将煅烧过的温度大于150°C的石膏粉即时保温状态下输送到余热自煅烧仓体内；3、将步骤2的石膏粉在余热自煅烧仓体内保温1小时以上，并保持余热自煅烧仓体内的石膏粉的温度在120°C‑165°C之间；4、将保温时间在1小时以上的的石膏粉从余热自煅烧仓体输出，具有节省能源，质量一致性好的特点。
High-temperature calcination method for hemihydrate gypsum
一种半水石膏高温煅烧方法
ZHAO JIAHENG (author) / ZHAO JIANGANG (author)
2020-09-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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