A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Process for producing cement from low-grade limestone
The invention provides a process for producing cement from low-grade limestone, which relates to the technical field of cement production and comprises the following steps: pre-homogenizing the low-grade limestone, and grinding the pre-homogenized low-grade limestone and other raw materials to obtain raw material powder; pouring into a preheating chamber for preheating, starting kiln exhaust equipment to convey gas into the preheating chamber, and preheating; acquiring atmosphere temperature data of the position of each temperature detection module in the latest unit time t; in response to thefact that the atmosphere temperature data reach the threshold temperature, judging that preheating is completed; calcining in a rotary kiln to prepare clinker; and mixing the clinker with other auxiliary materials, and grinding to a certain fineness to prepare the cement. According to the invention, each temperature detection module detects that the temperature in the preheating chamber reaches the preset value and the temperature fluctuation rate is lower than the preset value to judge that the raw material powder in a preheating chamber is preheated uniformly, so that the calcination in thefollowing steps is facilitated, and the utilization rate of energy and time can be effectively improved; and the quality of the produced cement is improved.
本发明提供一种低品位石灰石生产水泥的工艺，涉及水泥生产技术领域，包括：将低品位石灰石做预均化处理后与其他原料粉磨制得生料粉；倒入预热室中预热，启动窑炉排气设备向预热室内输气、预热；获取最近单位时间t内，各个温度检测模块所在位置的气氛温度数据；响应于气氛温度数据在达到阈值温度时，判断预热完成；送入回转窑中进行煅烧制成熟料；将熟料与其他辅料混合并研磨至一定细度制成水泥。本发明通过各个温度检测模块检测预热室内的温度到达预设值且温度波动率低于预设值时可判断的温度值来判断预热室内部生料粉已经预热均匀，便于接下来步骤中煅烧的进行，能够有效提高能源和时间的利用率，提升生产出来的水泥的品质。
Process for producing cement from low-grade limestone
The invention provides a process for producing cement from low-grade limestone, which relates to the technical field of cement production and comprises the following steps: pre-homogenizing the low-grade limestone, and grinding the pre-homogenized low-grade limestone and other raw materials to obtain raw material powder; pouring into a preheating chamber for preheating, starting kiln exhaust equipment to convey gas into the preheating chamber, and preheating; acquiring atmosphere temperature data of the position of each temperature detection module in the latest unit time t; in response to thefact that the atmosphere temperature data reach the threshold temperature, judging that preheating is completed; calcining in a rotary kiln to prepare clinker; and mixing the clinker with other auxiliary materials, and grinding to a certain fineness to prepare the cement. According to the invention, each temperature detection module detects that the temperature in the preheating chamber reaches the preset value and the temperature fluctuation rate is lower than the preset value to judge that the raw material powder in a preheating chamber is preheated uniformly, so that the calcination in thefollowing steps is facilitated, and the utilization rate of energy and time can be effectively improved; and the quality of the produced cement is improved.
本发明提供一种低品位石灰石生产水泥的工艺，涉及水泥生产技术领域，包括：将低品位石灰石做预均化处理后与其他原料粉磨制得生料粉；倒入预热室中预热，启动窑炉排气设备向预热室内输气、预热；获取最近单位时间t内，各个温度检测模块所在位置的气氛温度数据；响应于气氛温度数据在达到阈值温度时，判断预热完成；送入回转窑中进行煅烧制成熟料；将熟料与其他辅料混合并研磨至一定细度制成水泥。本发明通过各个温度检测模块检测预热室内的温度到达预设值且温度波动率低于预设值时可判断的温度值来判断预热室内部生料粉已经预热均匀，便于接下来步骤中煅烧的进行，能够有效提高能源和时间的利用率，提升生产出来的水泥的品质。
Process for producing cement from low-grade limestone
一种低品位石灰石生产水泥的工艺
FU DAOKUO (author) / YU XIAOFEI (author) / LUO HUAMIN (author) / YANG YUANSONG (author) / YANG WENJIN (author) / CHEN WANFU (author) / ZHOU JIANZHONG (author)
2020-12-18
Patent
Electronic Resource
Chinese
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