Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
RAW MATERIAL CHARGING DEVICE TO PREHEATER CYCLONE OF CEMENT CALCINATION APPARATUS
To disperse cement raw material efficiently in a hot gas flowing through an outlet duct of a preheater cyclone of a cement calcination apparatus to preheat effectively the cement raw material.SOLUTION: A raw material charging device includes a raw material chute 5 connected to an outlet duct 7d of a cyclone 7 and a dispersion plate 1 for dispersing a cement raw material R supplied from the raw material chute, in which: an inclination angle θ2 of the raw material chute is 55° or more and 70° or less; an upper surface of the dispersion plate is formed to be convex vertically upward as a whole, and has a central plane portion 2 that is a vertical plane extending in a length direction of the dispersion plate, is planar symmetric with respect to a vertical plane dividing an area of the upper surface into two equal parts and intersects directly the vertical plane; its width gradually increases as a position in a vertical direction of an intersection line between the vertical plane and the central plane portion becomes lower; an inclination angle θ1 of the central plane portion of the dispersion plate is 20° or more and 40° or less; and a mounting height H of a lower side of the central plane portion of the dispersion plate from a ceiling surface 7e of the preheater cyclone is 0.7 times or more and 1.5 times or less an inner diameter of the outlet duct of the cyclone 7.SELECTED DRAWING: Figure 1
【課題】セメント焼成装置のプレヒータサイクロンの出口ダクトを流れる熱ガス中にセメント原料を効率よく分散させ、セメント原料の予熱を効果的に行う。【解決手段】サイクロン７の出口ダクト７ｄに接続される原料シュート５と、原料シュートからのセメント原料Ｒを分散させる分散板１とを備え、原料シュートの傾斜角θ２は５５°以上７０°以下であり、分散板の上面は全体的に鉛直上方に凸に形成され、分散板の長さ方向に延びる鉛直面であって上面の面積を２等分する鉛直面に対して面対称であり、鉛直面と直接交わる中心平面部２を備え、鉛直面と中心平面部との交線の鉛直方向における位置が低くなるにつれて幅が漸増し、分散板の中心平面部の傾斜角θ１は２０°以上４０°以下であり、分散板の中心平面部の下辺の、プレヒータサイクロンの天井面７ｅからの取り付け高さＨは、サイクロン７の出口ダクトの内径の０．７倍以上１．５倍以下である原料投入装置。【選択図】図１
RAW MATERIAL CHARGING DEVICE TO PREHEATER CYCLONE OF CEMENT CALCINATION APPARATUS
To disperse cement raw material efficiently in a hot gas flowing through an outlet duct of a preheater cyclone of a cement calcination apparatus to preheat effectively the cement raw material.SOLUTION: A raw material charging device includes a raw material chute 5 connected to an outlet duct 7d of a cyclone 7 and a dispersion plate 1 for dispersing a cement raw material R supplied from the raw material chute, in which: an inclination angle θ2 of the raw material chute is 55° or more and 70° or less; an upper surface of the dispersion plate is formed to be convex vertically upward as a whole, and has a central plane portion 2 that is a vertical plane extending in a length direction of the dispersion plate, is planar symmetric with respect to a vertical plane dividing an area of the upper surface into two equal parts and intersects directly the vertical plane; its width gradually increases as a position in a vertical direction of an intersection line between the vertical plane and the central plane portion becomes lower; an inclination angle θ1 of the central plane portion of the dispersion plate is 20° or more and 40° or less; and a mounting height H of a lower side of the central plane portion of the dispersion plate from a ceiling surface 7e of the preheater cyclone is 0.7 times or more and 1.5 times or less an inner diameter of the outlet duct of the cyclone 7.SELECTED DRAWING: Figure 1
【課題】セメント焼成装置のプレヒータサイクロンの出口ダクトを流れる熱ガス中にセメント原料を効率よく分散させ、セメント原料の予熱を効果的に行う。【解決手段】サイクロン７の出口ダクト７ｄに接続される原料シュート５と、原料シュートからのセメント原料Ｒを分散させる分散板１とを備え、原料シュートの傾斜角θ２は５５°以上７０°以下であり、分散板の上面は全体的に鉛直上方に凸に形成され、分散板の長さ方向に延びる鉛直面であって上面の面積を２等分する鉛直面に対して面対称であり、鉛直面と直接交わる中心平面部２を備え、鉛直面と中心平面部との交線の鉛直方向における位置が低くなるにつれて幅が漸増し、分散板の中心平面部の傾斜角θ１は２０°以上４０°以下であり、分散板の中心平面部の下辺の、プレヒータサイクロンの天井面７ｅからの取り付け高さＨは、サイクロン７の出口ダクトの内径の０．７倍以上１．５倍以下である原料投入装置。【選択図】図１
RAW MATERIAL CHARGING DEVICE TO PREHEATER CYCLONE OF CEMENT CALCINATION APPARATUS
セメント焼成装置のプレヒータサイクロンへの原料投入装置
SUZUKI HIDETO (Autor:in)
03.12.2020
Patent
Elektronische Ressource
Japanisch
IPC:
C04B
Kalk
,
LIME
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
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
Kiln tail cyclone preheater based on aluminate cement production
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2024