A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR PRODUCING CEMENT CLINKER, AND APPARATUS FOR PRODUCING CEMENT CLINKER
To prevent an increase in the concentration of carbon monoxide in the exhaust gas.SOLUTION: A method for producing cement clinker includes: a feeding step of feeding ammonia gas to the inside of a calcining furnace where exhaust gas from the rotary kiln is introduced; and a calcining step of calcining cement raw materials in the calcining furnace while combusting ammonia gas, wherein the oxygen concentration in the area including the position where ammonia gas is fed in the feeding step of the plurality of areas obtained by dividing the inside of the calcining furnace in the circumferential direction around the central axis of the calcining furnace is higher than the average of the oxygen concentrations in the plurality of areas.SELECTED DRAWING: Figure 3
【課題】排ガス内の一酸化炭素濃度の上昇を抑制する。【解決手段】本開示の一側面に係るセメントクリンカの製造方法は、ロータリーキルンからの排ガスが導入される仮焼炉の内部に対して、アンモニアガスを供給する供給工程と、仮焼炉において、アンモニアガスを燃焼させつつ、セメント原料を仮焼する仮焼工程と、を含み、仮焼炉の内部を仮焼炉の中心軸まわりの周方向において区画して得られる複数の領域のうちの、供給工程においてアンモニアガスが供給される位置を含む領域における酸素濃度は、複数の領域における酸素濃度の平均値よりも高い。【選択図】図３
METHOD FOR PRODUCING CEMENT CLINKER, AND APPARATUS FOR PRODUCING CEMENT CLINKER
To prevent an increase in the concentration of carbon monoxide in the exhaust gas.SOLUTION: A method for producing cement clinker includes: a feeding step of feeding ammonia gas to the inside of a calcining furnace where exhaust gas from the rotary kiln is introduced; and a calcining step of calcining cement raw materials in the calcining furnace while combusting ammonia gas, wherein the oxygen concentration in the area including the position where ammonia gas is fed in the feeding step of the plurality of areas obtained by dividing the inside of the calcining furnace in the circumferential direction around the central axis of the calcining furnace is higher than the average of the oxygen concentrations in the plurality of areas.SELECTED DRAWING: Figure 3
【課題】排ガス内の一酸化炭素濃度の上昇を抑制する。【解決手段】本開示の一側面に係るセメントクリンカの製造方法は、ロータリーキルンからの排ガスが導入される仮焼炉の内部に対して、アンモニアガスを供給する供給工程と、仮焼炉において、アンモニアガスを燃焼させつつ、セメント原料を仮焼する仮焼工程と、を含み、仮焼炉の内部を仮焼炉の中心軸まわりの周方向において区画して得られる複数の領域のうちの、供給工程においてアンモニアガスが供給される位置を含む領域における酸素濃度は、複数の領域における酸素濃度の平均値よりも高い。【選択図】図３
METHOD FOR PRODUCING CEMENT CLINKER, AND APPARATUS FOR PRODUCING CEMENT CLINKER
セメントクリンカの製造方法、及びセメントクリンカの製造装置
FUJINAGA YUTA (author) / SUEMASU TAKESHI (author) / TACHIBANA CHIEMI (author)
2024-08-28
Patent
Electronic Resource
Japanese
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