A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
INDIRECT HEATING TYPE CEMENT FIRING SYSTEM
To provide a cement firing furnace and a cement production method capable of enhancing the ratio of biomass fuel used therein and enhancing the efficiency of recovering carbon dioxide derived from a cement raw material.SOLUTION: The cement firing furnace comprises an indirect heating type thermal decomposition furnace 200 that thermally decomposes fuel 11 including biomass by indirect heating to produce decomposition gas 21 and heated residue 31, an indirect heating type calcination furnace 300 firing a cement raw material 41 by indirect heating by using decomposition gas 21 as fuel to produce carbon dioxide 51 and a decarboxylated cement raw material 61, and a kiln 400 firing the decarboxylated cement raw material 61 to produce clinker.SELECTED DRAWING: Figure 1
【課題】バイオマス燃料の使用比率を向上し、セメント原料由来の二酸化炭素の回収効率を向上することができるセメント焼成炉及びセメント製造方法を提供する。【解決手段】バイオマスを含む燃料１１を間接加熱で熱分解し、分解ガス２１と加熱残渣３１を生成する間接加熱式の熱分解炉２００と、分解ガス２１を燃料として用い、セメント原料４１を間接加熱で焼成して、二酸化炭素５１と脱炭酸されたセメント原料６１を生成する間接加熱式の仮焼炉３００と、脱炭酸されたセメント原料６１を焼成してクリンカを得るキルン４００とを有するセメント焼成炉。【選択図】図１
INDIRECT HEATING TYPE CEMENT FIRING SYSTEM
To provide a cement firing furnace and a cement production method capable of enhancing the ratio of biomass fuel used therein and enhancing the efficiency of recovering carbon dioxide derived from a cement raw material.SOLUTION: The cement firing furnace comprises an indirect heating type thermal decomposition furnace 200 that thermally decomposes fuel 11 including biomass by indirect heating to produce decomposition gas 21 and heated residue 31, an indirect heating type calcination furnace 300 firing a cement raw material 41 by indirect heating by using decomposition gas 21 as fuel to produce carbon dioxide 51 and a decarboxylated cement raw material 61, and a kiln 400 firing the decarboxylated cement raw material 61 to produce clinker.SELECTED DRAWING: Figure 1
【課題】バイオマス燃料の使用比率を向上し、セメント原料由来の二酸化炭素の回収効率を向上することができるセメント焼成炉及びセメント製造方法を提供する。【解決手段】バイオマスを含む燃料１１を間接加熱で熱分解し、分解ガス２１と加熱残渣３１を生成する間接加熱式の熱分解炉２００と、分解ガス２１を燃料として用い、セメント原料４１を間接加熱で焼成して、二酸化炭素５１と脱炭酸されたセメント原料６１を生成する間接加熱式の仮焼炉３００と、脱炭酸されたセメント原料６１を焼成してクリンカを得るキルン４００とを有するセメント焼成炉。【選択図】図１
INDIRECT HEATING TYPE CEMENT FIRING SYSTEM
間接加熱式セメント焼成システム
INAZU KAZUYOSHI (author) / YOKOBORI TETSUO (author) / MIYASHITA HIROYUKI (author)
2023-05-15
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
Electric heating cement clinker firing system and method
| European Patent Office | 2022