A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Coal-fired nitrogen reduction method for cement kiln
The invention discloses a coal-fired nitrogen reduction method for a cement kiln, which belongs to the field of preparation of building consumables and comprises the following steps: preparing a raw material; firing the raw material to obtain clinker; and carrying out nitrogen reduction treatment. In the clinker firing process, the charging temperature of the necking of a smoke chamber needs to becontrolled, the charging temperature of the necking of the smoke chamber is controlled as low as possible on the basis that the firing effect is ensured, and the charging temperature of the necking of the smoke chamber is controlled to be not higher than 1100 DEG C. Thus, the reducing atmosphere can be increased, the production of nitrogen oxides can be reduced, the consumption of ammonia water can be reduced, the cost of nitrogen removal is greatly reduced, and the use of fuel is reduced. By adopting a novel raw material formula, the cyclic utilization of the construction waste is greatly increased, the cost is reduced, the waste is turned into wealth, the development of circular economy is promoted, the pollution is reduced, the ecological environment is protected, and the method has agood market prospect.
本发明公开一种水泥窑的燃煤降氮方法，属于建筑耗材制备领域，包括如下步骤：配制生料；烧制熟料；降氮处理三个步骤，在烧制熟料过程中，需要控制烟室缩口的入炉温度，在保证烧制效果的基础上，使控制烟室缩口的入炉温度尽可能低，控制烟室缩口的入炉温度不高于1100℃，从而可以增加还原气氛，降低氮氧化物的生成量，从而节约氨水的用量，大大降低了除氮的成本，同时减少了燃料的使用，本发明通过采用新型生料配方，极大的增加了对建筑废弃物的循环利用，降低成本，变废为宝，有利于推动循环经济发展并减少污染，保护生态环境，具有良好的市场前景。
Coal-fired nitrogen reduction method for cement kiln
The invention discloses a coal-fired nitrogen reduction method for a cement kiln, which belongs to the field of preparation of building consumables and comprises the following steps: preparing a raw material; firing the raw material to obtain clinker; and carrying out nitrogen reduction treatment. In the clinker firing process, the charging temperature of the necking of a smoke chamber needs to becontrolled, the charging temperature of the necking of the smoke chamber is controlled as low as possible on the basis that the firing effect is ensured, and the charging temperature of the necking of the smoke chamber is controlled to be not higher than 1100 DEG C. Thus, the reducing atmosphere can be increased, the production of nitrogen oxides can be reduced, the consumption of ammonia water can be reduced, the cost of nitrogen removal is greatly reduced, and the use of fuel is reduced. By adopting a novel raw material formula, the cyclic utilization of the construction waste is greatly increased, the cost is reduced, the waste is turned into wealth, the development of circular economy is promoted, the pollution is reduced, the ecological environment is protected, and the method has agood market prospect.
本发明公开一种水泥窑的燃煤降氮方法，属于建筑耗材制备领域，包括如下步骤：配制生料；烧制熟料；降氮处理三个步骤，在烧制熟料过程中，需要控制烟室缩口的入炉温度，在保证烧制效果的基础上，使控制烟室缩口的入炉温度尽可能低，控制烟室缩口的入炉温度不高于1100℃，从而可以增加还原气氛，降低氮氧化物的生成量，从而节约氨水的用量，大大降低了除氮的成本，同时减少了燃料的使用，本发明通过采用新型生料配方，极大的增加了对建筑废弃物的循环利用，降低成本，变废为宝，有利于推动循环经济发展并减少污染，保护生态环境，具有良好的市场前景。
Coal-fired nitrogen reduction method for cement kiln
一种水泥窑的燃煤降氮方法
WANG GUOBING (author)
2020-08-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Nitrogen oxide reduction device of a cement kiln using digester effluent
| European Patent Office | 2023