WO2015159572A1 - Fine particle dispersing apparatus - Google Patents

Fine particle dispersing apparatus Download PDF

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Publication number
WO2015159572A1
WO2015159572A1 PCT/JP2015/053193 JP2015053193W WO2015159572A1 WO 2015159572 A1 WO2015159572 A1 WO 2015159572A1 JP 2015053193 W JP2015053193 W JP 2015053193W WO 2015159572 A1 WO2015159572 A1 WO 2015159572A1
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Prior art keywords
center line
plane
pair
dispersion plate
respect
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PCT/JP2015/053193
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French (fr)
Japanese (ja)
Inventor
英人 鈴木
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太平洋エンジニアリング株式会社
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Application filed by 太平洋エンジニアリング株式会社 filed Critical 太平洋エンジニアリング株式会社
Priority to JP2016513654A priority Critical patent/JP6396433B2/en
Priority to CN201580016261.5A priority patent/CN106163650A/en
Publication of WO2015159572A1 publication Critical patent/WO2015159572A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/32—Arrangement of devices for charging
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
    • C04B7/44—Burning; Melting

Definitions

  • the present invention relates to a powder particle dispersion device, and more particularly to a device for efficiently dispersing powder particles in a gas.
  • powder particles are dispersed in a hot gas, and heat exchange with the hot gas is performed to dry or preheat the powder particles.
  • the cement raw material discharged from each cyclone is dispersed in the hot gas discharged from the lower cyclone, and is subjected to heat exchange with the hot gas and gradually decarboxylated. .
  • the powder is appropriately dispersed in a gas such as a hot gas, and the efficiency of heat exchange with the hot gas decreases due to the aggregation of the powder.
  • a temperature difference occurs between the cement raw materials discharged from each cyclone, or a so-called short path phenomenon occurs in which the cement raw material falls without riding on the airflow.
  • Patent Document 1 includes a flat plate-like base portion and a protruding portion that is extended in the raw material charging direction on the upper surface of the base portion and raised from the central portion, and the protruding portion is in the raw material charging direction. And a portion of the top view triangle in which the height and width of the protrusion from the upper surface of the base portion gradually decrease toward the downstream side of the base, and a portion of the top view square in which the protrusion height and width are constant, and the charged raw material is dispersed A cement production facility using a dispersion plate is described.
  • the dispersion plate described in Patent Document 1 is preferable because it contributes to stable operation of the cement production facility, but it is also considered to be applied to facilities other than the cement production facility, and the particles are more efficiently dispersed in the gas. Development of the device was desired.
  • this invention provides the granular material dispersion
  • the present invention is a granular material dispersing apparatus comprising a dispersing plate for dispersing the charged granular material, and the upper surface of the dispersing plate is generally formed as a convex upward,
  • the width gradually increases toward the downstream side in the powder particle feeding direction, is formed symmetrically with respect to the vertical plane passing through the center line in the powder particle loading direction on the upper surface of the dispersion plate, and is perpendicular to the center line.
  • the line is parallel to the horizontal plane.
  • the upper surface of the dispersing plate is formed so as to be convex upward as a whole, and the width of the dispersing plate is gradually increased over the whole. It is possible to effectively disperse the charged granular material in the gas.
  • the upper surface of the dispersion plate includes a first plane portion including the center line and a pair of first planes provided adjacent to the first plane portion in a direction perpendicular to the center line.
  • a pair of second planar portions provided at a first angle with respect to the first planar portion, and the second planar portion in a direction perpendicular to the center line.
  • a pair of third planar portions provided adjacent to each other, and a pair of third planar portions provided at a second angle with respect to the second planar portion.
  • the upper surface of the dispersion plate is a flat surface portion including the center line and a pair of curved surface portions provided adjacent to the flat surface portion on the upstream side in the powder particle charging direction. And a pair of curved surface portions provided so that the convex surface of the curved surface portion is an upper surface, the first plane portion including the center line on the downstream side in the powder particle charging direction, and the direction perpendicular to the center line A pair of second plane portions provided adjacent to the first plane portion, the pair of second planes provided at a first angle with respect to the first plane portion.
  • a pair of third plane portions provided adjacent to the second plane portion in a direction perpendicular to the center line and forming a second angle with respect to the second plane portion are defined by the curved surface. It can be smoothly joined to. Thereby, the charged granular material can be dispersed more uniformly in the horizontal direction.
  • an inclination angle adjusting means for adjusting an inclination angle of the center line with respect to a horizontal plane can be provided, and by adjusting the inclination angle, a falling speed and a falling direction after the charged powder particles collide with the dispersion plate. Can be adjusted to a desired dispersion state.
  • the inclination angle of the center line with respect to the horizontal plane can also be fixed, and the equipment cost can be kept low when adjustment of drop speed and drop direction is not so important.
  • FIG. 1 shows a first embodiment of a dispersion plate provided in a powder and particle dispersion device according to the present invention, and this dispersion plate 1 includes a center line in the powder particle introduction direction (arrow F) on the upper surface.
  • a pair of plane portions 3 (3A, 3B) provided adjacent to the plane portion 2 in the direction perpendicular to the plane portion 2 and the center line, and a pair provided adjacent to the plane portion 3 in the direction perpendicular to the center line.
  • Plane part 4 (4A, 4B).
  • the flat portion 3 is provided at a predetermined angle with respect to the flat portion 2
  • the flat portion 4 is provided at a predetermined angle with respect to the flat portion 3
  • the upper surface of the dispersion plate 1 is entirely It is formed so as to protrude upward.
  • the upper surface of the dispersion plate 1 is configured such that the width gradually increases toward the downstream side in the powder particle feeding direction F, and the charged powder particles are efficiently dispersed in the horizontal direction.
  • FIG. 2 shows an example of installation of the cement production facility provided with the dispersion plate 1 of FIG. 1 and is installed in a duct (hereinafter referred to as “rise duct”) 13 rising from the kiln bottom 14 a of the cement kiln 14 of the cement production facility 11. Shows the case.
  • rise duct a duct
  • a cylinder 15 as an inclination angle adjusting means is attached to the right end of the dispersion plate 1 so that the inclination angle ⁇ of the dispersion plate 1 with respect to the horizontal plane can be changed to about 25 ° to 35 °, and the piston 16 moves inside the cylinder 15. Is fixed to the outer peripheral surface of the rising duct 13 by the wire 12.
  • the inclination angle ⁇ can be adjusted by adjusting the protruding length of the piston 16 from the cylinder 15, and the dispersion plate 1 is fixed to the surrounding structure or the like in this state.
  • the length of the wire 12 can be changed, the end of the dispersion plate 1 can be pushed up and down from the lower part of the dispersion plate 1, and the side of the dispersion plate 1.
  • a configuration in which the inclination angle ⁇ is adjusted by a mechanism that moves the end of the dispersion plate 1 up and down can also be employed.
  • the cement raw material R dropped from the cyclone (not shown) of the preheater located above via the raw material chute 17
  • the temperature difference in the cement raw material R is generated over a wide range. It can be effectively prevented.
  • the inclination angle ⁇ of the dispersion plate 1 can be changed by the cylinder 15 and the piston 16, the falling speed and the falling direction after the cement raw material R dropped through the raw material chute 17 collides with the dispersion plate 1 are suitable. And can be adjusted as appropriate according to the operating conditions of the cement production facility 11.
  • FIG. 3 shows another installation example of the cement production facility including the dispersion plate 1 of FIG. 1, and the inclination angle ⁇ of the dispersion plate 1 from the kiln bottom 14 a of the cement kiln 14 of the cement production facility 21 to the rising duct 13. It shows the case where is fixed and installed.
  • the dispersion plate 1 is suspended from above the dispersion plate 1 with a wire, supports the end of the dispersion plate 1 from the lower part of the dispersion plate 1, or the dispersion plate 1 from the side of the dispersion plate 1. It can be fixed by holding the end of the.
  • This installation example can be adopted when adjustment of the falling speed and the falling direction after the cement raw material R collides with the dispersion plate 1 is not so important, and the inclination angle adjusting means of the dispersion plate 1 is omitted. Therefore, the equipment cost can be kept low.
  • FIG. 4 is a diagram showing a second embodiment of a dispersion plate provided in the powder particle dispersion device according to the present invention, and the upper surface of the dispersion plate 31 includes a center line in the powder particle charging direction F.
  • a pair of curved surface portions 33 (33A, 33B) provided adjacent to the flat surface portion 32 in a direction upstream of the flat particle portion charging direction F and in a direction perpendicular to the granular material charging direction F;
  • a pair of flat surface portions 35 and 36 provided adjacent to the flat surface portion 32 in the downstream direction of the granular material charging direction F and in the vertical direction of the granular material charging direction F, and in the vertical direction of the granular material charging direction F
  • the flat portions 35 and 36 are provided adjacent to the flat portions 35 and 36, respectively, and the convex surface of the curved surface portion 33 is provided as an upper surface.
  • a dispersion plate 31 can be provided instead of the dispersion plate 1 in FIG.
  • the dispersion plate 1 is installed in the rising duct 13 of the cement kiln 14 of the cement manufacturing facilities 11 and 21 is exemplified.
  • the present invention can be applied not only to the cement production facility 11 but also to any facility or apparatus that disperses powder particles in a hot gas, exchanges heat with the hot gas, and dries the powder particles.
  • hot gas not only hot gas but also other gases can efficiently disperse powder particles in the gas.
  • a dispersion plate it is not limited to the shape of FIG.1 and FIG.4, and the upper surface of a dispersion plate is generally formed in convex upward, and goes toward the downstream of a granular material injection
  • the width increases gradually, and is formed symmetrically with respect to the vertical plane passing through the center line in the powder particle feeding direction on the upper surface of the dispersion plate, and the line perpendicular to the center line in the powder particle loading direction is parallel to the horizontal plane.
  • various shapes can be employed.
  • an inclination angle adjusting means for adjusting the inclination angle ⁇ can be provided, and the inclination angle ⁇ can be fixed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Accessories For Mixers (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

Provided is a fine particle dispersing apparatus in which fine particles can be well dispersed in gas such as hot gas, so that the fine particles can be effectively dried and/or pre-heated, etc. [Solution] The fine particle dispersing apparatus is provided with a dispersing board capable of dispersing input fine particles, and is characterized in that: the upper surface of the dispersing board (1) is formed convex as a whole; the width thereof increases gradually toward the downstream side in the fine particle input direction (F); the dispersing board (1) is formed in symmetry with respect to a plane perpendicular to a plane through which the center line penetrates in the fine particle input direction (F) relative to the upper surface; and a line vertical to the center line is in parallel to a horizontal plane. The upper surface of the dispersing board (1) is provided with: a flat plane part (2) containing the center line in the fine particle input direction (F); flat plane parts (3) (3A and 3B) adjacent to the flat plane part (2) in the direction vertical to the center line and disposed at a given angle with respect to the flat plane part (2); and flat plane parts (4) (4A and 4B) adjacent to the flat plane parts (3) in the direction vertical to the center line and disposed at a given angle with respect to the flat plane parts (3).

Description

粉粒体分散装置Powder disperser
　本発明は、粉粒体分散装置に関し、特に気体中に粉粒体を効率よく分散させる装置に関する。 The present invention relates to a powder particle dispersion device, and more particularly to a device for efficiently dispersing powder particles in a gas.
　従来、粉粒体を熱ガス中に分散させて熱ガスと熱交換を行い、粉粒体を乾燥させたり、予熱することが行われている。例えば、セメント焼成装置を構成するプレヒータにおいて、各サイクロンから排出されたセメント原料は、下段のサイクロンから排出される熱ガス中に分散して熱ガスと熱交換を行い、徐々に脱炭酸がなされる。 Conventionally, powder particles are dispersed in a hot gas, and heat exchange with the hot gas is performed to dry or preheat the powder particles. For example, in the preheater constituting the cement baking apparatus, the cement raw material discharged from each cyclone is dispersed in the hot gas discharged from the lower cyclone, and is subjected to heat exchange with the hot gas and gradually decarboxylated. .
　しかし、粉粒体は一般的に熱ガス等の気体中に適度に分散していることは希であり、粉粒体が凝集することで、例えば熱ガスとの熱交換の効率が低下する。上記プレヒータの例では、各サイクロンから排出されたセメント原料間に温度格差が生じたり、セメント原料が気流に乗らずに落下する、いわゆるショートパス現象が生じる。これらは、セメント原料に含まれる硫黄分が凝縮してセメント製造設備の壁面に付着するコーティング生成の一因となり、セメント製造設備の安定運転を阻害する虞があった。 However, in general, it is rare that the powder is appropriately dispersed in a gas such as a hot gas, and the efficiency of heat exchange with the hot gas decreases due to the aggregation of the powder. In the example of the preheater, a temperature difference occurs between the cement raw materials discharged from each cyclone, or a so-called short path phenomenon occurs in which the cement raw material falls without riding on the airflow. These contribute to the generation of a coating in which the sulfur content contained in the cement raw material condenses and adheres to the wall surface of the cement manufacturing facility, which may hinder stable operation of the cement manufacturing facility.
　そこで、上記問題点に鑑み、特許文献１には、平板状の基部と、基部の上面に原料投入方向に延設されて中央部分から盛り上がった突出部とを備え、突出部は、原料投入方向の下流側に向かって基部の上面からの突出高さ及び幅が漸減する上面視三角形の部分と、突出高さ及び幅が一定の上面視四角形の部分とを備え、投入された原料を分散させる分散板を用いたセメント製造設備が記載されている。 Therefore, in view of the above problems, Patent Document 1 includes a flat plate-like base portion and a protruding portion that is extended in the raw material charging direction on the upper surface of the base portion and raised from the central portion, and the protruding portion is in the raw material charging direction. And a portion of the top view triangle in which the height and width of the protrusion from the upper surface of the base portion gradually decrease toward the downstream side of the base, and a portion of the top view square in which the protrusion height and width are constant, and the charged raw material is dispersed A cement production facility using a dispersion plate is described.
日本国特許第４１８１８５４号公報Japanese Patent No. 4181854
　特許文献１に記載の分散板は、セメント製造設備の安定運転に寄与して好ましいが、セメント製造設備以外の設備等への適用も視野に入れ、気体中に粉粒体をさらに効率よく分散させる装置の開発が望まれていた。 The dispersion plate described in Patent Document 1 is preferable because it contributes to stable operation of the cement production facility, but it is also considered to be applied to facilities other than the cement production facility, and the particles are more efficiently dispersed in the gas. Development of the device was desired.
　そこで、本発明は、熱ガス等の気体中に粉粒体を効率よく分散させることができ、粉粒体の乾燥や予熱等を効果的に行うことのできる粉粒体分散装置を提供することを目的とする。 Then, this invention provides the granular material dispersion | distribution apparatus which can disperse | distribute a granular material efficiently in gas, such as a hot gas, and can perform drying, preheating, etc. of a granular material effectively. With the goal.
　上記目的を達成するため、本発明は、投入された粉粒体を分散させる分散板を備える粉粒体分散装置であって、該分散板の上面は、全体的に上に凸に形成され、粉粒体投入方向の下流側に向かって幅が漸増し、前記分散板の上面上の粉粒体投入方向の中心線を通る鉛直面に対して面対称に形成され、前記中心線に垂直な線が水平面と平行であることを特徴とする。 In order to achieve the above object, the present invention is a granular material dispersing apparatus comprising a dispersing plate for dispersing the charged granular material, and the upper surface of the dispersing plate is generally formed as a convex upward, The width gradually increases toward the downstream side in the powder particle feeding direction, is formed symmetrically with respect to the vertical plane passing through the center line in the powder particle loading direction on the upper surface of the dispersion plate, and is perpendicular to the center line. The line is parallel to the horizontal plane.
　本発明に係る粉粒体分散装置によれば、分散板の上面を全体的に上に凸に形成すると共に分散板の幅を全体にわたって漸増させたため、投入された粉粒体を水平方向に効率的に分散させることができ、投入された粉粒体の気体中への分散を効率よく行うことができる。 According to the granular material dispersing apparatus according to the present invention, the upper surface of the dispersing plate is formed so as to be convex upward as a whole, and the width of the dispersing plate is gradually increased over the whole. It is possible to effectively disperse the charged granular material in the gas.
　上記粉粒体分散装置において、前記分散板の上面は、前記中心線を含む第１の平面部と、前記中心線の垂直方向において、前記第１の平面部に隣接して設けられる一対の第２の平面部であって、前記第１の平面部に対して第１の角度を成して設けられる一対の第２の平面部と、前記中心線の垂直方向において、前記第２の平面部に隣接して設けられる一対の第３の平面部であって、前記第２の平面部に対して第２の角度を成して設けられる一対の第３の平面部とを備えることができる。これにより、投入された粉粒体を水平方向により均一に分散させることができる。 In the above powder particle dispersion device, the upper surface of the dispersion plate includes a first plane portion including the center line and a pair of first planes provided adjacent to the first plane portion in a direction perpendicular to the center line. A pair of second planar portions provided at a first angle with respect to the first planar portion, and the second planar portion in a direction perpendicular to the center line. A pair of third planar portions provided adjacent to each other, and a pair of third planar portions provided at a second angle with respect to the second planar portion. Thereby, the charged granular material can be dispersed more uniformly in the horizontal direction.
　また、上記粉粒体分散装置において、前記分散板の上面は、粉粒体投入方向の上流側が、前記中心線を含む平面部と、該平面部に隣接して設けられる一対の曲面部であって、該曲面部の凸面を上面とするように設けられる一対の曲面部とを備え、粉粒体投入方向の下流側が、前記中心線を含む第１の平面部と、前記中心線の垂直方向において、前記第１の平面部に隣接して設けられる一対の第２の平面部であって、前記第１の平面部に対して第１の角度を成して設けられる一対の第２の平面部と、前記中心線の垂直方向において、前記第２の平面部に隣接して設けられる一対の第３の平面部であって、前記第２の平面部に対して第２の角度を成して設けられる一対の第３の平面部とを備え、前記第２の平面部及び第３の平面部を、前記曲面部となめらかに接合することができる。これにより、投入された粉粒体を水平方向により均一に分散させることができる。 Further, in the above powder particle dispersion device, the upper surface of the dispersion plate is a flat surface portion including the center line and a pair of curved surface portions provided adjacent to the flat surface portion on the upstream side in the powder particle charging direction. And a pair of curved surface portions provided so that the convex surface of the curved surface portion is an upper surface, the first plane portion including the center line on the downstream side in the powder particle charging direction, and the direction perpendicular to the center line A pair of second plane portions provided adjacent to the first plane portion, the pair of second planes provided at a first angle with respect to the first plane portion. And a pair of third plane portions provided adjacent to the second plane portion in a direction perpendicular to the center line and forming a second angle with respect to the second plane portion. A pair of third plane portions provided, and the second plane portion and the third plane portion are defined by the curved surface. It can be smoothly joined to. Thereby, the charged granular material can be dispersed more uniformly in the horizontal direction.
　また、水平面に対する前記中心線の傾斜角を調整する傾斜角調整手段を備えることができ、傾斜角を調整することで、投入された粉粒体が分散板に衝突した後の落下速度や落下方向が変化し、所望の分散状態に調整することができる。 In addition, an inclination angle adjusting means for adjusting an inclination angle of the center line with respect to a horizontal plane can be provided, and by adjusting the inclination angle, a falling speed and a falling direction after the charged powder particles collide with the dispersion plate. Can be adjusted to a desired dispersion state.
　水平面に対する前記中心線の傾斜角を固定することもでき、落下速度や落下方向の調整をそれ程重要視しない場合に、設備コストを低く抑えることができる。 The inclination angle of the center line with respect to the horizontal plane can also be fixed, and the equipment cost can be kept low when adjustment of drop speed and drop direction is not so important.
　以上のように、本発明によれば、気体中に粉粒体を効率よく分散させることのできる粉粒体分散装置を提供することができる。 As described above, according to the present invention, it is possible to provide a granular material dispersing apparatus capable of efficiently dispersing granular particles in a gas.
本発明に係る粉粒体分散装置に備えられる分散板の第１の実施形態を示す図であって、（ａ）は上面図、（ｂ）は（ａ）のＡ－Ａ矢視図、（ｃ）は左側面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows 1st Embodiment of the dispersion plate with which the granular material dispersion apparatus which concerns on this invention is equipped, (a) is a top view, (b) is the AA arrow line view of (a), c) is a left side view. 図１の分散板を備えたセメント製造設備におけるセメントキルンの窯尻部の一実施の形態を示す部分拡大図である。It is the elements on larger scale which show one Embodiment of the kiln bottom part of the cement kiln in the cement manufacturing equipment provided with the dispersion plate of FIG. 図１の分散板を備えたセメント製造設備におけるセメントキルンの窯尻部の他の例を示す部分拡大図である。It is the elements on larger scale which show the other example of the kiln bottom part of the cement kiln in the cement manufacturing equipment provided with the dispersion plate of FIG. 本発明に係る粉粒体分散装置に備えられる分散板の第２の実施形態を示す図であって、（ａ）は上面図、（ｂ）は（ａ）のＢ－Ｂ矢視図である。It is a figure which shows 2nd Embodiment of the dispersion plate with which the granular material dispersion | distribution apparatus concerning this invention is equipped, Comprising: (a) is a top view, (b) is a BB arrow line view of (a). .
  次に、本発明を実施するための形態について、図面を参照しながら詳細に説明する。 Next, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
  図１は、本発明に係る粉粒体分散装置に備えられる分散板の第１の実施形態を示し、この分散板１は、上面に、粉粒体投入方向（矢印Ｆ）の中心線を含む平面部２と、中心線の垂直方向において、平面部２に隣接して設けられる一対の平面部３（３Ａ、３Ｂ）と、中心線の垂直方向において、平面部３に隣接して設けられる一対の平面部４（４Ａ、４Ｂ）とを備える。 FIG. 1 shows a first embodiment of a dispersion plate provided in a powder and particle dispersion device according to the present invention, and this dispersion plate 1 includes a center line in the powder particle introduction direction (arrow F) on the upper surface. A pair of plane portions 3 (3A, 3B) provided adjacent to the plane portion 2 in the direction perpendicular to the plane portion 2 and the center line, and a pair provided adjacent to the plane portion 3 in the direction perpendicular to the center line. Plane part 4 (4A, 4B).
　平面部３は、平面部２に対して所定の角度を成して設けられ、平面部４は、平面部３に対して所定の角度を成して設けられ、分散板１の上面は全体的に上に凸に形成されている。 The flat portion 3 is provided at a predetermined angle with respect to the flat portion 2, the flat portion 4 is provided at a predetermined angle with respect to the flat portion 3, and the upper surface of the dispersion plate 1 is entirely It is formed so as to protrude upward.
　分散板１の上面は、粉粒体投入方向Ｆの下流側に向かって幅が漸増し、投入された粉粒体が水平方向に効率的に分散されるように構成されている。 The upper surface of the dispersion plate 1 is configured such that the width gradually increases toward the downstream side in the powder particle feeding direction F, and the charged powder particles are efficiently dispersed in the horizontal direction.
　図２は、図１の分散板１を備えたセメント製造設備の設置例を示し、セメント製造設備１１のセメントキルン１４の窯尻１４ａから立ち上がるダクト（以下「立上りダクト」という。）１３に設置した場合を示している。 FIG. 2 shows an example of installation of the cement production facility provided with the dispersion plate 1 of FIG. 1 and is installed in a duct (hereinafter referred to as “rise duct”) 13 rising from the kiln bottom 14 a of the cement kiln 14 of the cement production facility 11. Shows the case.
　分散板１の水平面に対する傾斜角θを２５°～３５°程度に変更できるように、分散板１の右端部に傾斜角調整手段としてのシリンダ１５が装着され、シリンダ１５の内部を移動するピストン１６がワイヤ１２によって立上りダクト１３の外周面に固定される。シリンダ１５からのピストン１６の突出長さを調整して傾斜角θを調整することができ、その状態で分散板１を周囲の構造物等に固定する。 A cylinder 15 as an inclination angle adjusting means is attached to the right end of the dispersion plate 1 so that the inclination angle θ of the dispersion plate 1 with respect to the horizontal plane can be changed to about 25 ° to 35 °, and the piston 16 moves inside the cylinder 15. Is fixed to the outer peripheral surface of the rising duct 13 by the wire 12. The inclination angle θ can be adjusted by adjusting the protruding length of the piston 16 from the cylinder 15, and the dispersion plate 1 is fixed to the surrounding structure or the like in this state.
　尚、シリンダ１５とピストン１６に代えて、ワイヤ１２だけでその長さを変化させたり、分散板１の下部より分散板１の端部を押し上げて上下させる機構や、分散板１の側部より分散板１の端部を上下させる機構により傾斜角θを調整する構成等を採用することもできる。 In place of the cylinder 15 and the piston 16, the length of the wire 12 can be changed, the end of the dispersion plate 1 can be pushed up and down from the lower part of the dispersion plate 1, and the side of the dispersion plate 1. A configuration in which the inclination angle θ is adjusted by a mechanism that moves the end of the dispersion plate 1 up and down can also be employed.
　上記構成を有する分散板１は、分散板１の上面の幅を全体にわたって漸増させたため、上方に位置するプレヒータのサイクロン（不図示）から原料シュート１７を介して落下したセメント原料Ｒを、投入方向に対して垂直な方向に均一に分散させることができ、セメント原料Ｒが立上りダクト１３の内部を上方に流れる熱ガスによって加熱される際に、セメント原料Ｒに温度格差が発生するのを広範囲にわたって効果的に防止することが可能となる。 In the dispersion plate 1 having the above configuration, since the width of the upper surface of the dispersion plate 1 is gradually increased over the entire surface, the cement raw material R dropped from the cyclone (not shown) of the preheater located above via the raw material chute 17 When the cement raw material R is heated by the hot gas flowing upward in the rising duct 13, the temperature difference in the cement raw material R is generated over a wide range. It can be effectively prevented.
　また、シリンダ１５とピストン１６によって分散板１の傾斜角θを変更することができるため、原料シュート１７を介して落下したセメント原料Ｒが分散板１に衝突した後の落下速度や落下方向を好適に変化させることができ、セメント製造設備１１の運転状況に合わせて適宜調整することができる。 Moreover, since the inclination angle θ of the dispersion plate 1 can be changed by the cylinder 15 and the piston 16, the falling speed and the falling direction after the cement raw material R dropped through the raw material chute 17 collides with the dispersion plate 1 are suitable. And can be adjusted as appropriate according to the operating conditions of the cement production facility 11.
　図３は、図１の分散板１を備えたセメント製造設備のもう一つの設置例を示し、セメント製造設備２１のセメントキルン１４の窯尻１４ａから立上りダクト１３に、分散板１の傾斜角θを固定して設置した場合を示している。図示を省略するが、分散板１は、分散板１の上方からワイヤで吊り下げたり、分散板１の下部より分散板１の端部を支持したり、分散板１の側部より分散板１の端部を保持するなどして固定することができる。 FIG. 3 shows another installation example of the cement production facility including the dispersion plate 1 of FIG. 1, and the inclination angle θ of the dispersion plate 1 from the kiln bottom 14 a of the cement kiln 14 of the cement production facility 21 to the rising duct 13. It shows the case where is fixed and installed. Although not shown, the dispersion plate 1 is suspended from above the dispersion plate 1 with a wire, supports the end of the dispersion plate 1 from the lower part of the dispersion plate 1, or the dispersion plate 1 from the side of the dispersion plate 1. It can be fixed by holding the end of the.
　この設置例は、セメント原料Ｒが分散板１に衝突した後の落下速度や落下方向の調整をそれ程重要視しない場合に採用することができ、分散板１の傾斜角調整手段を省略することで、その分設備コストを低く抑えることができる。 This installation example can be adopted when adjustment of the falling speed and the falling direction after the cement raw material R collides with the dispersion plate 1 is not so important, and the inclination angle adjusting means of the dispersion plate 1 is omitted. Therefore, the equipment cost can be kept low.
　図４は、本発明に係る粉粒体分散装置に備えられる分散板の第２の実施形態を示す図であって、この分散板３１の上面は、粉粒体投入方向Ｆの中心線を含む平面部３２と、粉粒体投入方向Ｆの上流側であって粉粒体投入方向Ｆの垂直方向において、平面部３２に隣接して設けられる一対の曲面部３３（３３Ａ、３３Ｂ）と、粉粒体投入方向Ｆの下流側であって粉粒体投入方向Ｆの垂直方向において、平面部３２に隣接して設けられる一対の平面部３５、３６と、粉粒体投入方向Ｆの垂直方向において、平面部３５、３６に各々隣接して設けられる平面部３４、３７とを備え、曲面部３３の凸面を上面とするように設けられる。平面部３４、３５と曲面部３３Ａ及び平面部３６、３７と曲面部３３Ｂとはなめらかに接合されている。図２及び図３に示したセメント製造設備１１、２１において、図１における分散板１に代えて分散板３１を設けることができる。 FIG. 4 is a diagram showing a second embodiment of a dispersion plate provided in the powder particle dispersion device according to the present invention, and the upper surface of the dispersion plate 31 includes a center line in the powder particle charging direction F. A pair of curved surface portions 33 (33A, 33B) provided adjacent to the flat surface portion 32 in a direction upstream of the flat particle portion charging direction F and in a direction perpendicular to the granular material charging direction F; A pair of flat surface portions 35 and 36 provided adjacent to the flat surface portion 32 in the downstream direction of the granular material charging direction F and in the vertical direction of the granular material charging direction F, and in the vertical direction of the granular material charging direction F The flat portions 35 and 36 are provided adjacent to the flat portions 35 and 36, respectively, and the convex surface of the curved surface portion 33 is provided as an upper surface. The flat surface portions 34 and 35 and the curved surface portion 33A and the flat surface portions 36 and 37 and the curved surface portion 33B are smoothly joined. In the cement production facilities 11 and 21 shown in FIGS. 2 and 3, a dispersion plate 31 can be provided instead of the dispersion plate 1 in FIG.
　尚、上記実施の形態においては、分散板１をセメント製造設備１１、２１のセメントキルン１４の立上りダクト１３に設置した場合を例示したが、セメント製造設備１１、２１の他の場所に用いてもよい。また、セメント製造設備１１に限らず、粉粒体を熱ガス中に分散させて熱ガスと熱交換を行い、粉粒体を乾燥させたりするあらゆる設備や装置に適用することができる。さらに、熱ガスに限らずその他の気体であっても、気体中に粉粒体を効率よく分散させることができる。 In the above embodiment, the case where the dispersion plate 1 is installed in the rising duct 13 of the cement kiln 14 of the cement manufacturing facilities 11 and 21 is exemplified. Good. Further, the present invention can be applied not only to the cement production facility 11 but also to any facility or apparatus that disperses powder particles in a hot gas, exchanges heat with the hot gas, and dries the powder particles. Furthermore, not only hot gas but also other gases can efficiently disperse powder particles in the gas.
　また、分散板の形状については、図１及び図４に記載の形状に限定されず、少なくとも分散板の上面が全体的に上に凸に形成され、粉粒体投入方向の下流側に向かって幅が漸増し、分散板の上面上の粉粒体投入方向の中心線を通る鉛直面に対して面対称に形成され、粉粒体投入方向の中心線に垂直な線が水平面と平行であれば、種々の形状を採用することができる。 Moreover, about the shape of a dispersion plate, it is not limited to the shape of FIG.1 and FIG.4, and the upper surface of a dispersion plate is generally formed in convex upward, and goes toward the downstream of a granular material injection | throwing-in direction. The width increases gradually, and is formed symmetrically with respect to the vertical plane passing through the center line in the powder particle feeding direction on the upper surface of the dispersion plate, and the line perpendicular to the center line in the powder particle loading direction is parallel to the horizontal plane. For example, various shapes can be employed.
　図１に記載の分散板１以外の形状の分散板を使用した場合であっても、傾斜角θを調整する傾斜角調整手段を備えることができ、傾斜角θを固定することもできる。 Even when a dispersion plate having a shape other than the dispersion plate 1 shown in FIG. 1 is used, an inclination angle adjusting means for adjusting the inclination angle θ can be provided, and the inclination angle θ can be fixed.
１　分散板
２、３（３Ａ、３Ｂ）、４（４Ａ、４Ｂ）　平面部
１１　セメント製造設備
１２　ワイヤ
１３　立上りダクト
１４　セメントキルン
１４ａ　窯尻
１５　シリンダ
１６　ピストン
１７　原料シュート
２１　セメント製造設備
３１　分散板
３２　平面部
３３（３３Ａ、３３Ｂ）　曲面部
３４～３７　平面部 DESCRIPTION OF SYMBOLS 1 Dispersion plate 2, 3 (3A, 3B), 4 (4A, 4B) Plane part 11 Cement production equipment 12 Wire 13 Rising duct 14 Cement kiln 14a Kiln bottom 15 Cylinder 16 Piston 17 Raw material chute 21 Cement production equipment 31 Dispersion plate 32 Plane part 33 (33A, 33B) Curved part 34 to 37 Plane part

Claims (5)

  1.   投入された粉粒体を分散させる分散板を備える粉粒体分散装置であって、
    　該分散板の上面は、
    　全体的に上に凸に形成され、
    　粉粒体投入方向の下流側に向かって幅が漸増し、
    　前記分散板の上面上の粉粒体投入方向の中心線を通る鉛直面に対して面対称に形成され、
    　前記中心線に垂直な線が水平面と平行であることを特徴とする粉粒体分散装置。     A powder and particle dispersion device including a dispersion plate for dispersing the charged particles and
    The upper surface of the dispersion plate is
    It is formed as a whole with a convex shape,
    The width gradually increases toward the downstream side in the direction of charging the powder,
    It is formed symmetrically with respect to a vertical plane passing through the center line of the powder body injection direction on the upper surface of the dispersion plate,
    A granular material dispersing apparatus, wherein a line perpendicular to the center line is parallel to a horizontal plane.
  2. 　前記分散板の上面は、
    　前記中心線を含む第１の平面部と、
    　前記中心線の垂直方向において、前記第１の平面部に隣接して設けられる一対の第２の平面部であって、前記第１の平面部に対して第１の角度を成して設けられる一対の第２の平面部と、
    　前記中心線の垂直方向において、前記第２の平面部に隣接して設けられる一対の第３の平面部であって、前記第２の平面部に対して第２の角度を成して設けられる一対の第３の平面部とを備えることを特徴とする請求項１に記載の粉粒体分散装置。     The upper surface of the dispersion plate is
    A first plane portion including the center line;
    A pair of second planar portions provided adjacent to the first planar portion in a direction perpendicular to the center line, the first planar portion being provided at a first angle. A pair of second planar portions;
    A pair of third plane portions provided adjacent to the second plane portion in a direction perpendicular to the center line, and are provided at a second angle with respect to the second plane portion. The powder particle dispersion apparatus according to claim 1, further comprising a pair of third flat portions.
  3.   前記分散板の上面は、粉粒体投入方向の上流側が、
    　前記中心線を含む平面部と、
    　該平面部に隣接して設けられる一対の曲面部であって、該曲面部の凸面を上面とするように設けられる一対の曲面部とを備え、
    　粉粒体投入方向の下流側が、
    　前記中心線を含む第１の平面部と、
    　前記中心線の垂直方向において、前記第１の平面部に隣接して設けられる一対の第２の平面部であって、前記第１の平面部に対して第１の角度を成して設けられる一対の第２の平面部と、
    　前記中心線の垂直方向において、前記第２の平面部に隣接して設けられる一対の第３の平面部であって、前記第２の平面部に対して第２の角度を成して設けられる一対の第３の平面部とを備え、
    　前記第２の平面部及び第３の平面部は、前記曲面部となめらかに接合していることを特徴とする請求項１に記載の粉粒体分散装置。     As for the upper surface of the dispersion plate, the upstream side in the direction of charging the granular material,
    A plane portion including the center line;
    A pair of curved surface portions provided adjacent to the flat surface portion, and a pair of curved surface portions provided with the convex surface of the curved surface portion as an upper surface,
    The downstream side of the powder input direction is
    A first plane portion including the center line;
    A pair of second planar portions provided adjacent to the first planar portion in a direction perpendicular to the center line, the first planar portion being provided at a first angle. A pair of second planar portions;
    A pair of third plane portions provided adjacent to the second plane portion in a direction perpendicular to the center line, and are provided at a second angle with respect to the second plane portion. A pair of third planar portions,
    2. The powder particle dispersion device according to claim 1, wherein the second flat surface portion and the third flat surface portion are smoothly joined to the curved surface portion.
  4. 　水平面に対する前記中心線の傾斜角を調整する傾斜角調整手段を備えることを特徴とする請求項１、２又は３に記載の粉粒体分散装置。 4. The granular material dispersing apparatus according to claim 1, 2 or 3, further comprising an inclination angle adjusting means for adjusting an inclination angle of the center line with respect to a horizontal plane.
  5. 　水平面に対する前記中心線の傾斜角を固定したことを特徴とする請求項１、２又は３に記載の粉粒体分散装置。 4. The granular material dispersing apparatus according to claim 1, 2, or 3, wherein an inclination angle of the center line with respect to a horizontal plane is fixed.
PCT/JP2015/053193 2014-04-14 2015-02-05 Fine particle dispersing apparatus WO2015159572A1 (en)

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