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Comprehensive utilization method of coal-fired flue gas
The invention discloses a comprehensive utilization method of a coal-fired flue gas. According to the method, oxycarbide in the flue gas is solidified mainly through industrial steel slag, so as to achieve the effect of comprehensively utilizing the flue gas, and to prepare a hardened brick body. The comprehensive utilization method of the coal-fired flue gas specifically comprises the following steps of finely grinding the steel slag, screening the finely ground steel slag through a sieve, adding a proper amount of water into the finely ground steel slag obtained by screening with the sieve, sufficiently agitating an obtained mixture, and loading raw materials which are uniformly mixed into a mold to mold, so as to prepare a green body of a brick. The green body which is prepared well is put into a still kettle; carbon dioxides (the carbon dioxides are obtained through waste gases from a cement kiln) of different pressure are introduced into the still kettle to maintain the green body which is prepared well; maintenance conditions are that humidity is 80 percent to 95 percent, a temperature is 30 DEG C to 180 DEG C, and a maintenance period is 12 hours to 168 hours; thus, the hardened brick body is prepared. According to the comprehensive utilization method of the coal-fired flue gas, the residual heat of the coal-fired flue gas and the industrial steel slag are sufficiently utilized; the carbon dioxides in the waste gases can be absorbed; the resource utilization of a solid waste is improved; the pollution of the waste gases to the atmosphere is reduced; the comprehensive utilization method of the coal-fired flue gas has quite good economic value and environment-friendly value.
Comprehensive utilization method of coal-fired flue gas
The invention discloses a comprehensive utilization method of a coal-fired flue gas. According to the method, oxycarbide in the flue gas is solidified mainly through industrial steel slag, so as to achieve the effect of comprehensively utilizing the flue gas, and to prepare a hardened brick body. The comprehensive utilization method of the coal-fired flue gas specifically comprises the following steps of finely grinding the steel slag, screening the finely ground steel slag through a sieve, adding a proper amount of water into the finely ground steel slag obtained by screening with the sieve, sufficiently agitating an obtained mixture, and loading raw materials which are uniformly mixed into a mold to mold, so as to prepare a green body of a brick. The green body which is prepared well is put into a still kettle; carbon dioxides (the carbon dioxides are obtained through waste gases from a cement kiln) of different pressure are introduced into the still kettle to maintain the green body which is prepared well; maintenance conditions are that humidity is 80 percent to 95 percent, a temperature is 30 DEG C to 180 DEG C, and a maintenance period is 12 hours to 168 hours; thus, the hardened brick body is prepared. According to the comprehensive utilization method of the coal-fired flue gas, the residual heat of the coal-fired flue gas and the industrial steel slag are sufficiently utilized; the carbon dioxides in the waste gases can be absorbed; the resource utilization of a solid waste is improved; the pollution of the waste gases to the atmosphere is reduced; the comprehensive utilization method of the coal-fired flue gas has quite good economic value and environment-friendly value.
Comprehensive utilization method of coal-fired flue gas
HOU GUIHUA (author) / GAO XIAOJIAO (author) / LU BAO (author) / ZHANG QINFANG (author) / CUI ENTIAN (author) / TAO ZETIAN (author) / JIANG RUIYU (author) / XU NING (author) / DENG YUXIN (author)
2015-10-07
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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