A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
OPERATIONAL METHOD OF CEMENT BURNING DEVICE
PROBLEM TO BE SOLVED: To stably operate a cement burning device by controlling sulfur content in the cement burning device efficiently at low cost.SOLUTION: A part of exhaust gas is extracted with cooling from a kiln exhaust gas channel 5 from a kiln tail of a cement kiln 4 to a lowermost cyclone of a pre-heater to separate extracted gas G1 into coarse powder D1 and gas containing fine powder G2, fine powder D3 is recovered from the gas containing the fine powder, SOconcentration of an exhaust gas G4 after recovering the fine powder is measured, SOconcentration is calculated from a correlation of the SOconcentration and SOconcentration of a cement raw material in the kiln tail of the cement kiln to the lowermost cyclone of the pre-heater based on the measured SOconcentration and the amount of sulfur content supplied to the cement kiln is adjusted by operating a cement raw fuel depending on the calculated SOconcentration. Oxygen concentration of the kiln tail, burning temperature or the like can be adjusted depending on the calculated SOconcentration.SELECTED DRAWING: Figure 1
【課題】効率的かつ低コストでセメント焼成装置内の硫黄分を管理してセメント焼成装置を安定して運転する。【解決手段】セメントキルン４の窯尻からプレヒータの最下段サイクロンに至るまでのキルン排ガス流路５より燃焼排ガスの一部を冷却しながら抽気し、抽気ガスＧ１を粗粉Ｄ１と、微粉を含むガスＧ２とに分離し、微粉を含むガスから微粉Ｄ３を回収し、微粉を回収した後の排ガスＧ４のＳＯ2濃度を測定し、測定したＳＯ2濃度に基づいて、該ＳＯ2濃度と前記セメントキルンの窯尻又はプレヒータの最下段サイクロンにおけるセメント原料のＳＯ3濃度の相関関係から該ＳＯ3濃度を算出し、算出したＳＯ3濃度に応じて、前記セメントキルンに供給される硫黄分の量をセメント原燃料を操作して調整する。上記算出したＳＯ3濃度に応じて、前記セメントキルンの窯尻酸素濃度、焼成温度等を調整することもできる。【選択図】図１
OPERATIONAL METHOD OF CEMENT BURNING DEVICE
PROBLEM TO BE SOLVED: To stably operate a cement burning device by controlling sulfur content in the cement burning device efficiently at low cost.SOLUTION: A part of exhaust gas is extracted with cooling from a kiln exhaust gas channel 5 from a kiln tail of a cement kiln 4 to a lowermost cyclone of a pre-heater to separate extracted gas G1 into coarse powder D1 and gas containing fine powder G2, fine powder D3 is recovered from the gas containing the fine powder, SOconcentration of an exhaust gas G4 after recovering the fine powder is measured, SOconcentration is calculated from a correlation of the SOconcentration and SOconcentration of a cement raw material in the kiln tail of the cement kiln to the lowermost cyclone of the pre-heater based on the measured SOconcentration and the amount of sulfur content supplied to the cement kiln is adjusted by operating a cement raw fuel depending on the calculated SOconcentration. Oxygen concentration of the kiln tail, burning temperature or the like can be adjusted depending on the calculated SOconcentration.SELECTED DRAWING: Figure 1
【課題】効率的かつ低コストでセメント焼成装置内の硫黄分を管理してセメント焼成装置を安定して運転する。【解決手段】セメントキルン４の窯尻からプレヒータの最下段サイクロンに至るまでのキルン排ガス流路５より燃焼排ガスの一部を冷却しながら抽気し、抽気ガスＧ１を粗粉Ｄ１と、微粉を含むガスＧ２とに分離し、微粉を含むガスから微粉Ｄ３を回収し、微粉を回収した後の排ガスＧ４のＳＯ2濃度を測定し、測定したＳＯ2濃度に基づいて、該ＳＯ2濃度と前記セメントキルンの窯尻又はプレヒータの最下段サイクロンにおけるセメント原料のＳＯ3濃度の相関関係から該ＳＯ3濃度を算出し、算出したＳＯ3濃度に応じて、前記セメントキルンに供給される硫黄分の量をセメント原燃料を操作して調整する。上記算出したＳＯ3濃度に応じて、前記セメントキルンの窯尻酸素濃度、焼成温度等を調整することもできる。【選択図】図１
OPERATIONAL METHOD OF CEMENT BURNING DEVICE
セメント焼成装置の運転方法
TERASAKI JUNICHI (author) / NAITO KOICHI (author) / TAKADA NORIYUKI (author)
2017-02-16
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
| Engineering Index Backfile | 1924
| Engineering Index Backfile | 1906