JP2742669B2 - Variable classification point cyclone - Google Patents
Variable classification point cycloneInfo
- Publication number
- JP2742669B2 JP2742669B2 JP9786195A JP9786195A JP2742669B2 JP 2742669 B2 JP2742669 B2 JP 2742669B2 JP 9786195 A JP9786195 A JP 9786195A JP 9786195 A JP9786195 A JP 9786195A JP 2742669 B2 JP2742669 B2 JP 2742669B2
- Authority
- JP
- Japan
- Prior art keywords
- barrel
- powder
- truncated cone
- cyclone
- movable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Cyclones (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Combined Means For Separation Of Solids (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、粒径が分布している粉
体を分級及び捕集するためのサイクロン装置に係り、粉
体の分級点を可変に調整し任意粒径の粉体を精度良く選
択的に捕集するようにした分級点可変型サイクロン装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cyclone apparatus for classifying and collecting powder having a particle size distribution, and variably adjusting a classification point of the powder to produce a powder having an arbitrary particle size. The present invention relates to a classifying point variable type cyclone device which selectively collects with high accuracy.
【0002】ここで取り扱う「粉体」は、粒径が1mm
以下μmレベルの「微細な粉体」(以下、微粉とい
う。)を考慮しており、具体的には数μm〜百数十μm
を対象(ターゲット)としているが、この範囲を適用限
界とするものではない。なお、「粉粒体」の用語は使用
しない。The "powder" used here has a particle diameter of 1 mm.
Hereinafter, a “fine powder” (hereinafter referred to as “fine powder”) of a μm level is considered, and specifically, several μm to one hundred and several tens μm.
Is the target, but this range is not the limit of application. Note that the term “granules” is not used.
【0003】[0003]
【従来の技術】粒径が分布しているμmレベルやそれ以
下の微粉を取り扱う分野では、技術の高精度化、製品の
高品質化等の技術解決課題に対して、材料の選択だけで
なく、材料の物理的・化学的な性質に影響を及ぼす粉体
の表面積の大小すなわち粉体の粒径や粒度分布が、期待
される効果を左右するとの知見があり、極めて重要視さ
れている。2. Description of the Related Art In the field of handling fine powder having a particle size of μm level or smaller, not only the selection of materials but also the resolution of technical problems such as higher precision of technology and higher quality of products. It has been found that the magnitude of the surface area of the powder, which affects the physical and chemical properties of the material, that is, the particle size and the particle size distribution of the powder, influence the expected effects, and are regarded as extremely important.
【0004】ここでは、使用粉体の粒度(分布)を調整
するためにより高度な分級技術が要請され、従来より粉
体中の粗粉と微粉を選別して選択的に捕集(回収)可能
なサイクロン装置又はサイクロン式分級装置が提案され
てきた。Here, a more sophisticated classification technique is required to adjust the particle size (distribution) of the powder used, and a coarse powder and a fine powder in the powder can be conventionally separated and selectively collected (recovered). Various cyclone devices or cyclone classifiers have been proposed.
【0005】例えば、実開平4−50149号「サイク
ロン」(以下、公知装置という。)では、逆円錐胴体
に傾斜姿勢の拡大壁部を設けて粉体(明細書では粉粒
体)の再飛散防止効果の向上を図っている。また、拡大
壁部に可動円錐体(明細書ではコーン)を収設してブロ
ーダウンを組み合わせることにより飛散防止効果を増補
するとの記載がある。[0005] For example, in Japanese Utility Model Laid-Open No. 4-50149, "Cyclone" (hereinafter referred to as a known device), an inverted conical body is provided with an enlarged wall in an inclined posture to re-spray powder (in the specification, powder and granules). The prevention effect is improved. In addition, it is described that a movable cone (a cone in the specification) is housed in the enlarged wall portion and blow-down is combined to enhance the scattering prevention effect.
【0006】また、特開平4−349949号「サイク
ロン式の乾式分級装置」(以下、公知装置という。)
では、サイクロン塔の上部に渦巻状に形成した粉体導入
部に進退可能なスライド壁を設けて、分散粉体を含んだ
空気流の吹込先端の断面積を可変構成し、分級点の変更
を図っている。[0006] Japanese Patent Application Laid-Open No. 4-349949, "Cyclone type dry classification device" (hereinafter, known device).
In the upper part of the cyclone tower, a spiral slide wall is provided in the spirally formed powder introduction part, and the cross-sectional area of the blowing tip of the air flow containing the dispersed powder is variably configured to change the classification point. I'm trying.
【0007】また、特開平6−238197号「サイク
ロン装置」(以下、公知装置という。)では、粗粉回
収手段上部の胴筒下端との開口連絡部に下側から胴筒内
に向かって円錐形の尖頂部が臨むように対向し上下動さ
せこれらの間に環状の隙間を形成する可動円錐体(明細
書では隙間形成用のブロック又は円錐状ブロック)を設
け、分級点の変更を図っている。In Japanese Unexamined Patent Publication No. Hei 6-238197, "cyclone apparatus" (hereinafter referred to as "known apparatus"), a cone is formed from the lower side to the inside of the cylinder at the opening communicating part with the lower end of the cylinder above the coarse powder collecting means. A movable cone (a block or a conical block for forming a gap in the specification) that moves upward and downward so as to face the apex of the shape and forms an annular gap therebetween is provided to change the classification point. I have.
【0008】上記公知装置がサイクロン塔の構造にお
いて胴筒に拡大壁部を有する点、上記公知装置及び
がサイクロン塔の構造等によって分級点が固定的に決ま
ってしまうことの欠点を解決しようとする点で、一考に
値するものである。[0008] It is an object of the present invention to solve the drawbacks that the above-mentioned known apparatus has an enlarged wall in a barrel in the structure of a cyclone tower and that the classification point is fixedly determined by the structure of the above-mentioned known apparatus and the cyclone tower. In this respect, it is worth considering.
【0009】特に本発明に関し、公知装置及びを積
極的に評価すると、一の装置で分級点の異なる粉体の分
級をおこなって製造条件や品質の変更等に対応する点、
また集塵装置としての設備への適用性を向上する点が目
的効果として読みとれる。In particular, regarding the present invention, when a known apparatus and a known apparatus are positively evaluated, powders having different classification points are classified by one apparatus to cope with changes in manufacturing conditions and quality.
In addition, the point that the applicability to equipment as a dust collecting apparatus is improved can be read as the objective effect.
【0010】[0010]
【発明が解決しようとする課題】しかしながら、分級点
可動と分級性能の問題を強くみる場合、上述した公知装
置における特徴的構成はいずれも個別的な改善手段であ
り、以下に示すような問題点があった。However, when the problems of classifying point movement and classifying performance are emphasized, each of the above-described characteristic configurations in the known apparatus is an individual improvement means, and the following problems are caused. was there.
【0011】公知装置は、胴筒(逆円錐胴体)に拡大
壁部を有し、再飛散を防止して粉体の捕集効果を増補す
るという利点があるが、分級点可動及び分級性能につい
ては目的効果の記載はない。本発明に関しては、この構
造の胴筒は改変されなければならない。[0011] The known device has an enlarged wall portion in the barrel (inverted conical body) and has the advantage of preventing re-scattering and enhancing the powder collecting effect. Does not describe the intended effect. For the present invention, the barrel of this structure must be modified.
【0012】公知装置は、粉体導入部に進退可能なガ
イド板(スライド壁)を有するが、この構成のみでは分
級点の可動範囲が比較的狭いという欠点がある。また、
ガイド板の間隔比を小さくすると、胴筒内の圧力損失が
増大するので実用的でないといえる。The known device has a guide plate (sliding wall) which can move forward and backward in the powder introduction portion, but this configuration alone has a disadvantage that the movable range of the classification point is relatively narrow. Also,
It can be said that reducing the guide plate spacing ratio is not practical because the pressure loss in the barrel increases.
【0013】公知装置は、可動円錐体を有するが、こ
の構成のみでは分級点の可動範囲は広くなるものの、粒
度分布幅も広くなり、分級性能に悪影響が生じるという
欠点がある。Although the known apparatus has a movable cone, the movable range of the classification point is widened by using only this configuration, but there is a disadvantage that the particle size distribution is widened and the classification performance is adversely affected.
【0014】そこで、上記公知装置の個々の利点を吸収
し、かつ、欠点を除去し、全体として分級点可動におけ
る分級性能を向上する技術手段の提供が要請される。[0014] Therefore, there is a need to provide a technical means for absorbing the individual advantages of the above-mentioned known device, removing the disadvantages, and improving the classification performance in classifying point movement as a whole.
【0015】ところで、本発明が対象としている数μm
〜百数十μmの粒子が混合している粉体としては、代表
的には微粉炭燃焼ボイラから排出される石炭灰(フライ
アッシュ)があり、これまでにJIS規格灰として主に
セメントの分野に利用先をもっているが、副生量の約5
0%程度にとどまっている。[0015] By the way, several μm
As a powder in which particles of up to one hundred and several tens of μm are mixed, there is typically coal ash (fly ash) discharged from a pulverized coal combustion boiler. But there is about 5
It is only about 0%.
【0016】この一因は、フライアッシュの性質上(一
般に粒度分布幅が広く粒径が揃っていない、又は分級点
変更範囲が狭い等)、粒径を揃え任意な粒径に分級する
ことが困難な点にある。One reason for this is that, due to the properties of fly ash (generally, the particle size distribution is wide and the particle size is not uniform, or the range of changing the classification point is narrow, etc.), it is necessary to classify the particle size to an arbitrary particle size. It is in a difficult point.
【0017】一方、フライアッシュは球形粒子であり、
物理的・化学的に種々の特徴的性質を有することが知ら
れている。特に、粒径が小さく、かつ、粒度分布幅が狭
いフライアッシュを分級・捕集できると、より優れた機
能を生じると考えられる。したがって、高流動化コンク
リートや高強度セメント等その用途に応じて要求される
粒径を調整できれば有効な利用拡大が図れるとの期待が
ある。On the other hand, fly ash is a spherical particle,
It is known to have various characteristic properties physically and chemically. In particular, if fly ash having a small particle size and a narrow particle size distribution width can be classified and collected, it is considered that a more excellent function is produced. Therefore, if the required particle size can be adjusted according to the application such as highly fluidized concrete and high-strength cement, it is expected that effective utilization can be expanded.
【0018】こうしたなかで、電気事業者を対象にフラ
イアッシュの再資源化の促進が義務づけられたこともあ
り、フライアッシュ分級を主とする技術解決課題の範囲
がより具体的になってきた。[0018] Under these circumstances, the promotion of the recycling of fly ash has been obligated for the electric power companies, and the scope of the technical solution mainly on fly ash classification has become more specific.
【0019】本発明者らは、発電所から排出される多量
のフライアッシュを有効利用するために高品質化(改
質)に関する研究等をすすめる過程で、新規なサイクロ
ン塔体の構成要素を含み、技術水準として知得していた
上記公知装置にみられるすべての構造的及び機能的利点
を満たし、かつ、ブローアップ及びブローダウン方式を
併用することにより、有意な改善が図れることを見出
し、本発明装置を開発するに至った。こうして完成した
本発明装置は、もちろんフライアッシュのみならず粒径
が分布している粉体について広く適用できるものであ
る。The inventors of the present invention have conducted a study on quality improvement (reformation) in order to effectively use a large amount of fly ash discharged from a power plant, and have included components of a novel cyclone tower body. It has been found that a significant improvement can be achieved by satisfying all the structural and functional advantages of the above-mentioned known devices known as the state of the art, and by using the blow-up and blow-down methods together. The invention device was developed. The apparatus of the present invention completed in this way can be widely applied not only to fly ash but also to powder having a particle size distribution.
【0020】本発明はこのような事情に鑑みなされたも
のであって、上記課題を解消し、粒径が分布している粉
体について、分級性能を悪化させることなく分級点の変
更ができ、しかも粗大粒子の飛散防止効果及び分級性能
の保持効果を増補して、従来的には不十分であった任意
粒径の粉体捕集を可能とする分級点可変型サイクロン装
置を提供することを目的とするものである。The present invention has been made in view of such circumstances, and solves the above-mentioned problems, and can change the classification point of powder having a particle size distribution without deteriorating the classification performance. Moreover, it is an object of the present invention to provide a variable classification point type cyclone device capable of collecting powder of an arbitrary particle size, which was conventionally insufficient, by enhancing the effect of preventing the scattering of coarse particles and the effect of retaining the classification performance. It is the purpose.
【0021】[0021]
【課題を解決するための手段】上記目的を達成するため
に本発明は、粉体の分級点を可変に調整し任意粒径の粉
体を選択的に捕集するようにした分級点可変型サイクロ
ン装置であって、上方に直筒部と下方に逆円錐台形状部
とを連設した胴筒を有するサイクロン塔本体が、分散粉
体を含んだ空気流をサイクロン塔本体の内壁面に沿って
周方向に吸い込むために直筒部に設けられた全円周渦巻
状粉体導入手段の内部に進退可能なスライド壁を形成し
て空気流の吹込先端の断面積を可変に調整するようにし
た円弧状の移動式案内板と;胴筒上部の中央位置から直
筒部内に可変長に垂下して下端が開口し導入された空気
流が胴筒内周壁に沿って旋回することで形成される渦流
の中心部に上方から弱い負圧を作用して微粉を回収する
ための上下可動式出口管と;胴筒の概略中間位置で逆円
錐台形状部の絞り径を胴筒の接線方向に拡径した拡大部
を設けて垂直姿勢の上下二段からなる段付き構造とする
とともに下部逆円錐台形状部の天蓋を形成し、上部逆円
錐台形状部の下端を下部逆円錐台形状部内に一定長垂下
したエッジ部を設けて開口連絡するようにしたエッジ付
き拡大部と;胴筒下端に開口接続し前記渦流に乗って沈
降する粗粉を回収するための粗粉回収手段の開口接続部
に設けられ、下側から上方の胴筒内に向かって円錐形の
尖頂部が臨むように対向し上下動してこれらの間に環状
の隙間を形成する可動円錐体と;この可動円錐体を収容
する粗粉回収手段上部壁面に給気ポート及び排気ポート
を設けて外部から渦流速度を調整して分級点可動を増補
するためのブローアップ及びブローダウン機構とを具備
したことを特徴とするものである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a variable classification point type in which the classification point of powder is variably adjusted to selectively collect powder having an arbitrary particle size. In a cyclone device, a cyclone tower body having a barrel having a straight cylinder portion and an inverted truncated conical portion formed in a downward direction is connected to the inner wall of the cyclone tower body. A circle in which a cross-sectional area of an air flow blowing tip is variably adjusted by forming a reciprocating slide wall inside a full-circular spiral powder introduction means provided in a straight cylindrical portion for suction in a circumferential direction. An arcuate movable guide plate; and a vortex flow formed by a variable length hanging down from the center position of the upper part of the barrel into the straight barrel part and opening at the lower end and the introduced airflow swirling along the inner circumferential wall of the barrel. Up and down movable type for collecting fine powder by applying a weak negative pressure to the center from above Mouth tube; an enlarged portion in which the diameter of the inverted frustoconical portion is increased in the tangential direction of the barrel at the approximate middle position of the barrel to form a stepped structure consisting of two vertical stages with a vertical posture, An enlarged section having an edge formed by forming a canopy of a truncated conical part, and providing a lower end of the upper inverted truncated conical part in a lower part of the inverted truncated conical part with an edge part hanging down in a predetermined length so as to communicate with the opening; Is provided at an opening connection portion of coarse powder collecting means for collecting coarse powder settling by riding on the vortex, so that a cone-shaped apex faces from the lower side toward the inside of the upper barrel. A movable cone body which moves up and down to form an annular gap between them; and an air supply port and an exhaust port provided on the upper wall surface of the coarse powder collecting means accommodating the movable cone body to adjust the vortex velocity from outside. Blow-up and blow-up to augment classification point movement It is characterized in that it has and a down mechanism.
【0022】特に、胴筒の特徴的構成は、逆円錐台形状
部にエッジ付き拡大部を形成して垂直姿勢の上下二段か
らなる段付き逆円錐台形状部を構成し、前記エッジ付き
拡大部に上部逆円錐台形状部下端の絞り径を胴筒の接線
方向に拡径形成した拡大部を設けてこれを天蓋とする下
部逆円錐台形状部を接続するとともに上部逆円錐台形状
部の下端を下部逆円錐台形状部内に一定長垂下したエッ
ジ部を設けて開口連絡するものである。In particular, the characteristic configuration of the barrel is that an enlarged truncated cone-shaped portion is formed in the inverted truncated cone shape portion to form a stepped inverted truncated cone shape having two vertical stages in the vertical posture, The upper inverted truncated cone-shaped portion is provided with an enlarged portion formed by increasing the aperture diameter at the lower end in the tangential direction of the barrel, and is connected to the lower inverted truncated cone shaped portion having the canopy as the upper inverted truncated cone shaped portion. The lower end is provided with an edge portion which is suspended for a predetermined length in the lower inverted truncated conical portion, and communicates with the opening.
【0023】また、微粉回収手段である上下可動式出口
管に微粉の捕集効率の低下を防止するための整流筒を内
蔵してもよい。Further, a rectifying cylinder for preventing a reduction in the collection efficiency of the fine powder may be incorporated in the vertically movable outlet pipe as the fine powder collecting means.
【0024】[0024]
【作用】胴筒にエッジ付き拡大部を設けて段付逆円錐台
形状部を構成するとともに、粉体導入手段における移動
式案内板(スライド壁)と可動円錐体(コーン又はブロ
ック)等公知装置にみられるすべての構造的及び機能的
利点を満たし、かつ、ブローアップ及びブローダウン機
構を採用することにより、分級性能を悪化させることな
く分級点の変更ができ、しかも粗大粒子の飛散防止効果
及び分級性能の保持効果を増補して、任意粒径の粉体捕
集を可能とする。A well-known device such as a stepped inverted frustoconical portion formed by providing an enlarged portion with an edge on the barrel and a movable guide plate (sliding wall) and a movable cone (cone or block) in the powder introduction means. Satisfies all the structural and functional advantages seen in the above, and by adopting a blow-up and blow-down mechanism, the classification point can be changed without deteriorating the classification performance, and the effect of preventing the scattering of coarse particles and The effect of retaining the classification performance is enhanced to enable collection of powder having an arbitrary particle size.
【0025】[0025]
【実施例】本発明の一実施例を添付図面を参照して以下
説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the accompanying drawings.
【0026】図1は分級点可変型サイクロン装置(以
下、本発明装置という。)の塔体構造を示す縦断面概略
図及び粉体導入手段の平断面概略図である。FIG. 1 is a schematic longitudinal sectional view showing a tower structure of a variable classification point cyclone apparatus (hereinafter referred to as the apparatus of the present invention) and a schematic plan sectional view of a powder introducing means.
【0027】ここで、1がサイクロン塔本体、2が胴
筒、21が直筒部、22が逆円錐台形状部、22aが上部逆円
錐台形状部、22bが下部逆円錐台形状部、23がエッジ付
き拡大部、23aが拡大部、23bがエッジ部、3が粉体導
入手段、31が移動式案内板、4が上下可動式出口管(微
粉回収手段)、41が整流筒、5が粗粉回収手段、6が可
動円錐体、7が給気ポート(ブローアップ機構)、8が
排気ポート(ブローダウン機構)及びXが分級点可変型
サイクロン装置(本発明装置)である。なお、図中hは
可動円錐体の上下動における変位を示す。(以下同じ)Here, 1 is a cyclone tower main body, 2 is a barrel, 21 is a straight cylinder, 22 is an inverted truncated cone, 22a is an upper inverted truncated cone, 22b is a lower inverted truncated cone, and 23 is Enlarged portion with edge, 23a is an enlarged portion, 23b is an edge portion, 3 is a powder introducing means, 31 is a movable guide plate, 4 is a vertically movable outlet pipe (fine powder collecting means), 41 is a rectifying cylinder, 5 is a coarse tube. Powder collecting means, 6 is a movable cone, 7 is an air supply port (blow-up mechanism), 8 is an exhaust port (blow-down mechanism), and X is a classifying point variable cyclone device (the present invention device). In the drawing, h indicates the displacement in the vertical movement of the movable cone. (same as below)
【0028】図2は本発明装置(X)を組み込んだベン
チスケール規模でのフライアッシュ分級装置系統図であ
る。なお、関連機器及び各ラインの符号及び説明は省略
した。FIG. 2 is a system diagram of a fly ash classification apparatus on a bench scale scale incorporating the apparatus (X) of the present invention. Note that reference numerals and descriptions of related devices and each line are omitted.
【0029】図1に示すように、本発明装置(X)の特
徴的構成は、上方に直筒部(21)と下方に逆円錐台形状
部(22)とを連設した胴筒(2)を有するサイクロン塔
本体(1)が、分散粉体を含んだ空気流をサイクロン塔
本体(1)の内壁面に沿って周方向に吸い込むために直
筒部(21)に設けられた全円周渦巻状粉体導入手段
(3)の内部に進退可能なスライド壁を形成して空気流
の吹込先端の断面積を可変に調整するようにした円弧状
の移動式案内板(31)と;胴筒(2)上部の中央位置か
ら直筒部(21)内に可変長に垂下して下端が開口し導入
された空気流が胴筒(2)内周壁に沿って旋回すること
で形成される渦流の中心部に上方から弱い負圧を作用し
て微粉を回収するための上下可動式出口管(4)と;胴
筒(2)の概略中間位置で逆円錐台形状部(22)の絞り
径を胴筒(2)の接線方向に拡径した拡大部(23a)を
設けて垂直姿勢の上下二段からなる段付き構造とすると
ともに下部逆円錐台形状部(22b)の天蓋を形成し、上
部逆円錐台形状部(22a)の下端を下部逆円錐台形状部
(22b)内に一定長垂下したエッジ部(23b)を設けて
開口連絡するようにしたエッジ付き拡大部(23)と;胴
筒(2)下端に開口接続し前記渦流に乗って沈降する粗
粉を回収するための粗粉回収手段(5)の開口接続部に
設けられ、下側から上方の胴筒(2)内に向かって円錐
形の尖頂部が臨むように対向し上下動してこれらの間に
環状の隙間を形成する可動円錐体(6)と;この可動円
錐体(6)を収容する粗粉回収手段(5)上部の壁面に
給気ポート(7)及び排気ポート(8)を設けて外部か
ら渦流速度を調整して分級点可動を増補するためのブロ
ーアップ及びブローダウン機構とを具備するものであ
る。As shown in FIG. 1, the characteristic structure of the device (X) of the present invention is that a barrel (2) having a straight cylindrical portion (21) on the upper side and an inverted truncated conical portion (22) on the lower side. Is provided on the straight cylindrical portion (21) for sucking the air flow containing the dispersed powder in the circumferential direction along the inner wall surface of the cyclone tower body (1). A movable guide plate (31) having an arc shape in which a slide wall which can advance and retreat is formed inside the powder-like powder introducing means (3) so as to variably adjust a cross-sectional area of an airflow blowing tip; (2) The vortex flow formed by the air flow introduced from the center position of the upper portion to the straight tube portion (21) to be variably suspended in the variable length and opening at the lower end and swirling along the inner peripheral wall of the barrel (2). A vertically movable outlet pipe (4) for recovering fine powder by applying a weak negative pressure to the center from above; at a roughly intermediate position of the barrel (2) An inverted truncated cone-shaped portion (22) is provided with an enlarged portion (23a) in which the iris diameter is increased in the tangential direction of the barrel (2) to provide a stepped structure having two vertical stages and a lower inverted truncated cone. The canopy of the shape portion (22b) is formed, and the lower end of the upper inverted truncated cone shape (22a) is provided with an edge portion (23b) that is suspended for a certain length in the lower inverted truncated cone shape (22b) so as to communicate with the opening. An enlarged portion with an edge (23) provided at an opening connection portion of coarse powder collecting means (5) for opening and connecting the lower end of the barrel (2) and collecting coarse powder settling on the vortex; A movable cone (6) opposing and moving up and down to form an annular gap between the conical apex so as to face the inside of the upper barrel (2) from the lower side; An air supply port (7) and an exhaust port (8) are provided on the upper wall surface of the coarse powder collecting means (5) containing the body (6). Is intended to and a blow-up and blowdown mechanism to augment adjustments to classification point movable swirl velocity from the section.
【0030】以下に、各構成要素ごとの機能を説明す
る。The function of each component will be described below.
【0031】なお、以下に述べる本発明の各構成要素又
は実施例装置の作用効果の記載は、実験的に確認された
事実に基づくものであり、規模の拡縮によって影響され
るものではないので、実験結果(成績、考察及び図面)
も説明に加える。図3は実験装置の構成概略図である。The following description of the operation and effect of each component of the present invention or the apparatus of the embodiment is based on facts confirmed experimentally, and is not affected by scaling. Experimental results (results, considerations and drawings)
Will also be added to the description. FIG. 3 is a schematic diagram of the configuration of the experimental apparatus.
【0032】エッジ付き拡大部(23) 胴筒(2)の概略中間位置で逆円錐台形状部(22)の絞
り径を胴筒の接線方向に拡径した拡大部(23a)を設け
て垂直姿勢の上下二段からなる段付き構造とすることに
より、胴筒(2)内の微粉中へ粗大粒子が混入するのを
抑制し粒度分布幅を狭くすること(分級性能の向上)及
びサイクロンの圧力損失を低減することに寄与する。The enlarged section with edge (23) is provided with an enlarged section (23a) in which the aperture diameter of the inverted truncated cone-shaped section (22) is increased in the tangential direction of the barrel at a substantially intermediate position of the barrel (2). By adopting a stepped structure consisting of two upper and lower postures, coarse particles are prevented from being mixed into the fine powder in the barrel (2), the particle size distribution width is narrowed (improved classification performance), and the cyclone It contributes to reducing pressure loss.
【0033】これに加えて、上記拡大部(23a)を下部
逆円錐台形状部(22b)の天蓋とし、上部逆円錐台形状
部(22a)の下端を下部逆円錐台形状部(22b)内に一
定長垂下したエッジ部(23b)を設けて開口連絡するよ
うに構成すると上記機能(又は作用効果)を増補するこ
とができる。In addition, the enlarged portion (23a) is used as a canopy of the lower inverted truncated cone shape (22b), and the lower end of the upper inverted truncated cone shape (22a) is formed inside the lower inverted truncated cone shape (22b). The above-mentioned function (or effect) can be augmented by providing an edge portion (23b) hanging down for a certain length so as to communicate with the opening.
【0034】上記作用効果を奏するエッジ付き拡大部の
分級性能への影響が実験により確認されており、図4が
塔体構造の異なる4種類のサイクロンにおける部分分離
効率曲線の比較を示す部分分離効率 VS.粒径のデータプ
ロット(部分分離効率曲線)である。Experiments have confirmed the effect of the enlarged section with an edge exerting the above-mentioned effects on the classification performance, and FIG. 4 shows a comparison of partial separation efficiency curves for four types of cyclones having different tower structures. VS. Data plot of particle size (partial separation efficiency curve).
【0035】図からみてとれるように本発明装置構成に
おける部分分離効率曲線(図中、◇X型一点鎖線)が最
もシャープに立ち上がっており、分級性能が向上すると
いえる。As can be seen from the figure, the partial separation efficiency curve (ΔX type dashed line in the figure) in the apparatus configuration of the present invention rises most sharply, and it can be said that the classification performance is improved.
【0036】また、図5が本発明装置構成と標準型(従
来型)構成とを比較したフィルター部での重量基準粒径
頻度分布を示す重量基準粒径頻度 VS.粒径のデータプロ
ットである。FIG. 5 is a data plot of the weight-based particle size frequency vs. the particle size showing the weight-based particle size frequency distribution in the filter section comparing the configuration of the present invention with the standard type (conventional type) configuration. .
【0037】図からみてとれるように本発明装置構成に
おける重量基準粒径頻度分布(幅)が狭まっており、分
級性能が向上するといえる。図中、斜線を施した領域が
粗粒子混入防止効果を示す領域である。As can be seen from the figure, the weight-based particle size frequency distribution (width) in the configuration of the apparatus of the present invention is narrow, and it can be said that the classification performance is improved. In the figure, the shaded area is the area showing the effect of preventing coarse particle contamination.
【0038】移動式案内板(31) 円周方向にスライドさせることにより案内板先端とサイ
クロン上部内壁との半径方向の距離を変化(空気流の吹
込先端の断面積を変化)させ、案内板先端における入口
流速を変化させるものである。The movable guide plate (31) slides in the circumferential direction to change the radial distance between the leading end of the guide plate and the inner wall of the cyclone upper part (changes the cross-sectional area of the leading end of the air flow), thereby changing the leading end of the guide plate. At the inlet.
【0039】この操作は、下記の間隔比(添付図面中の
g)を指標とするものであって、間隔比を小さくする
(入口流速を上げる)と遠心効果が強くなり、粒子の半
径方向の移動距離が減少することから、分級点を小径側
に移行することに寄与する。 間隔比=(案内板先端部とサイクロン壁との幅[mm]/サ
イクロン入口幅[mm])In this operation, the following interval ratio (g in the attached drawings) is used as an index. If the interval ratio is reduced (increased inlet flow rate), the centrifugal effect becomes stronger, and the particle diameter in the radial direction increases. Since the moving distance is reduced, it contributes to shifting the classification point to the smaller diameter side. Spacing ratio = (width between guide plate tip and cyclone wall [mm] / cyclone inlet width [mm])
【0040】上記作用効果を支持する案内板移動時の分
級点への影響が実験により確認されており、図6が移動
式案内板の50%分離径(分級点)への影響を示す部分
分離効率 VS.粒径のデータプロット(部分分離効率曲
線) である。The effect on the classification point when moving the guide plate supporting the above-mentioned effects is confirmed by experiments, and FIG. 6 shows the partial separation showing the effect on the 50% separation diameter (classification point) of the movable guide plate. It is a data plot (partial separation efficiency curve) of efficiency vs. particle size.
【0041】可動円錐体(6) 可動円錐体の上下動(添付図面中のh)により、粗粉回
収手段入口(開口接続部)面の有効面積及び平均気流上
昇速度を変化させると、サイクロン内部(胴筒内)での
粒子の平均滞留時間を増減することから、分級点の可動
範囲を広くすることに寄与する。 Movable cone (6) When the effective area of the inlet (opening connection portion) surface of the coarse powder collecting means and the average air flow rising speed are changed by the vertical movement (h in the attached drawing ) of the movable cone, the inside of the cyclone is changed. By increasing or decreasing the average residence time of the particles (in the barrel), it contributes to widening the movable range of the classification point.
【0042】ここで、移動式案内板(31)と可動円錐体
(6)を併用した複合効果が実験により確認されてお
り、図7が移動式案内板と可動円錐体の複合効果による
分級点変更時における分級性能への影響を示す部分分離
効率 VS.粒径のデータプロット(部分分離効率曲線) で
ある。Here, the combined effect of using the movable guide plate (31) and the movable cone (6) together has been confirmed by experiments, and FIG. 7 shows a classification point based on the combined effect of the movable guide plate and the movable cone. It is a data plot (partial separation efficiency curve) of partial separation efficiency vs. particle size showing the influence on classification performance at the time of change.
【0043】図中、○印と△印の実線は移動式案内板
(31)を使用せず(図中g=1)、可動円錐体(6)の
上下動(図中h=10mm,8mm)のみによる分級点変更
時における分級性能を検証したものであり、可動円錐体
(6)を10mm位置から8mm位置に移動した場合、50
%分離径(分級点)における部分分離効率曲線の傾斜が
小さくなっている。したがって、この場合では公知装置
の欠点として先述したとおり分級性能が悪化傾向にあ
ることがわかる。In the figure, the solid lines indicated by circles and triangles indicate the vertical movement of the movable cone (6) without using the movable guide plate (31) (g = 1 in the figure) (h = 10 mm, 8 mm in the figure). ) Alone was used to verify the classification performance when the classification point was changed, and when the movable cone (6) was moved from the 10 mm position to the 8 mm position, 50
The slope of the partial separation efficiency curve at% separation diameter (classification point) is small. Therefore, in this case, as described above, it is understood that the classification performance tends to deteriorate as a disadvantage of the known device.
【0044】一方、□印と◇印の破線は移動式案内板
(31)と可動円錐体(6)との併用(図中g=0.9 及び
h=10mm,8mm)による分級点変更時における分級性
能を検証したものであり、移動式案内板(31)の間隔比
(図中g) を0.9 とし可動円錐体(6)を10mm位置か
ら8mm位置に移動した場合、50%分離径(分級点)に
おける部分分離効率曲線の傾斜に殆ど差異はない。した
がって、この場合では分級性能が維持されている(保持
効果がある) ことがわかる。On the other hand, the broken lines marked with □ and Δ indicate the classification when the classification point is changed by using the movable guide plate (31) and the movable cone (6) together (g = 0.9, h = 10 mm, 8 mm in the figure). The performance was verified. When the distance ratio (g in the figure) of the movable guide plate (31) was set to 0.9 and the movable cone (6) was moved from the 10 mm position to the 8 mm position, a 50% separation diameter (classification point) was obtained. There is almost no difference in the slope of the partial separation efficiency curve in ()). Therefore, in this case, it is understood that the classification performance is maintained (there is a holding effect).
【0045】ブローアップ機構(7) 粗粉回収手段(5)上部の壁面に全円周渦巻式ブローア
ップ入口(給気ポート7)を設け、外部から強制送気し
て平均気流上昇速度を増加させ、粗大粒子以外をサイク
ロン内部(胴筒内)に押し上げ、分級点を大径側に移行
することに寄与する。 Blow-up mechanism (7) Coarse-powder collecting means (5) Provided with an all-circumferential spiral blow-up inlet (air supply port 7) on the upper wall surface and forced air supply from outside to increase the average air flow rise speed Then, particles other than the coarse particles are pushed up inside the cyclone (inside the barrel), thereby contributing to shifting the classification point to the large diameter side.
【0046】上記作用効果を支持するブローアップ流量
比の変化における分級点への影響が実験により確認され
ており、図7がブローアップ流量比の50%分離径(分
級点)への影響を示す部分分離効率 VS.粒径のデータプ
ロット(部分分離効率曲線)である。The effect of the change in the blow-up flow rate ratio, which supports the above-mentioned effects, on the classification point has been confirmed by experiments. FIG. 7 shows the effect of the blow-up flow rate ratio on the 50% separation diameter (classification point). It is a data plot (partial separation efficiency curve) of partial separation efficiency vs. particle size.
【0047】ブローダウン機構(8) 粗粉回収手段(5)上部の壁面にブローダウン吸引口
(排気ポート8)を設け、外部から強制吸引してサイク
ロン円錐壁近傍の下向き速度成分を増加して粗粉の捕集
効率を上昇させ、分級点を若干小径側に移行することに
寄与する。 Blow-down mechanism (8) Coarse powder collecting means (5) A blow-down suction port (exhaust port 8) is provided on the upper wall surface to increase the downward velocity component near the cyclone cone wall by forcible suction from the outside. It increases the collection efficiency of coarse powder and contributes to slightly shifting the classification point to the smaller diameter side.
【0048】ここで、ブローダウンで吸引回収した粉体
は、微粉と粗粉の中間的な平均粒径を有し、一度に異な
る3種類の粒径を捕集できることになり有意である。Here, the powder suction-recovered by blowdown has an average particle diameter intermediate between fine powder and coarse powder, and it is possible to collect three different particle diameters at a time, which is significant.
【0049】通常、可動円錐体(6)と以下のブローア
ップ及びブローダウン機構は組み合わせ操作される。Normally, the movable cone (6) and the following blow-up and blow-down mechanisms are operated in combination.
【0050】上下可動式出口管(4) サイクロン(1)の出口管の高さを変えることにより、
微粉の平均滞留時間を増減させ、分級点を若干変化させ
ることに寄与する。出口管が基準点より高いと微粉平均
粒径が小さくなり、低いと大きくなる。また、出口管内
部における上昇気流の乱れによる捕集効率の低下を防止
するために整流筒(41)を内蔵している。 Vertically movable outlet pipe (4) By changing the height of the outlet pipe of cyclone (1),
It contributes to increasing or decreasing the average residence time of the fine powder and slightly changing the classification point. When the outlet pipe is higher than the reference point, the average particle diameter of the fine powder is small, and when the outlet pipe is low, the average is large. In addition, a rectifying cylinder (41) is incorporated to prevent a reduction in the collection efficiency due to turbulence of the updraft in the outlet pipe.
【0051】このように、本発明装置(X)が上述の構
造的及び機能的利点をすべて満たすものであり、分級性
能を悪化させることなく広範囲に分級点の変更ができ、
しかも粗大粒子の飛散防止効果及び分級性能の保持効果
を増補して任意粒径の粉体捕集を可能とするという技術
解決課題を達成することができる。As described above, the apparatus (X) of the present invention satisfies all the structural and functional advantages described above, and can widely change the classification point without deteriorating the classification performance.
In addition, it is possible to achieve a technical solution to augment the effect of preventing the scattering of coarse particles and the effect of maintaining the classification performance, thereby enabling collection of powder having an arbitrary particle size.
【0052】[0052]
【発明の効果】本発明は以上の構成よりなるものであ
り、これによれば以下に示す有益な効果を奏する。The present invention has the above-described structure, and has the following advantageous effects.
【0053】(1)複雑な制御機構を有することなく粒
径を揃え、かつ、広範囲に分級点を変更して任意粒径の
粉体捕集が可能である。しかも、粗大粒子の飛散防止効
果及び分級性能の保持効果を増補できる。(1) It is possible to collect powder having an arbitrary particle size by uniforming the particle size without having a complicated control mechanism and changing the classification point in a wide range. In addition, the effect of preventing the coarse particles from scattering and the effect of maintaining the classification performance can be increased.
【0054】(2)ブローダウン機構により、一の装置
で微粉、粗粉及びブローダウン粉の3種類の異なる平均
粒径の粉体捕集が可能である。(2) By means of a blow-down mechanism, three types of powder having different average particle diameters of fine powder, coarse powder and blow-down powder can be collected by one apparatus.
【0055】(3)粒径が分布している粉体に対して、
任意の粒径に分級して用途に応じた粉体を回収できるの
で、品質向上(又は高品質化)に寄与することができ
る。特に、フライアッシュについてはセメント材料等へ
の利用先の拡大(高付加価値利用)が図れる。(3) For a powder having a particle size distribution,
Since the powder can be classified into an arbitrary particle size and collected according to the application, it can contribute to quality improvement (or higher quality). In particular, the use of fly ash can be expanded to cement materials and the like (high value-added use).
【図1】一実施例である本発明装置の塔体構造を示す縦
断面概略図及び粉体導入手段の平断面概略図である。FIG. 1 is a schematic vertical sectional view showing a tower structure of an apparatus of the present invention, which is one embodiment, and a schematic plan sectional view of a powder introducing means.
【図2】本発明装置を組み込んだベンチスケール規模で
のフライアッシュ分級装置系統図である。FIG. 2 is a system diagram of a fly ash classification device on a bench scale scale incorporating the device of the present invention.
【図3】実験装置の構成概略図である。FIG. 3 is a schematic configuration diagram of an experimental apparatus.
【図4】塔体構造の異なる4種類のサイクロンにおける
部分分離効率曲線の比較を示す部分分離効率 VS.粒径の
データプロット(部分分離効率曲線) である。FIG. 4 is a data plot (partial separation efficiency curve) of partial separation efficiency vs. particle size showing comparison of partial separation efficiency curves in four types of cyclones having different column structures.
【図5】本発明装置構成と標準型(従来型)構成とを比
較したフィルター部での重量基準粒径頻度分布を示す重
量基準粒径頻度 VS.粒径のデータプロットである。FIG. 5 is a data plot of weight-based particle size frequency vs. particle size showing a weight-based particle size frequency distribution in a filter unit comparing the device configuration of the present invention with a standard type (conventional type) configuration.
【図6】移動式案内板の50%分離径(分級点)への影
響を示す部分分離効率 VS.粒径のデータプロット(部分
分離効率曲線) である。FIG. 6 is a data plot (partial separation efficiency curve) of partial separation efficiency vs. particle size showing the effect on the 50% separation diameter (classification point) of the movable guide plate.
【図7】移動式案内板と可動円錐体の複合効果による分
級点変更時における分級性能への影響を示す部分分離効
率 VS.粒径のデータプロット(部分分離効率曲線) であ
る。FIG. 7 is a data plot (partial separation efficiency curve) of partial separation efficiency vs. particle size showing the effect on classification performance when the classification point is changed by the combined effect of the movable guide plate and the movable cone.
【図8】ブローアップ流量比の50%分離径(分級点)
への影響を示す部分分離効率 VS.粒径のデータプロット
(部分分離効率曲線) である。FIG. 8: 50% separation diameter of blow-up flow ratio (classification point)
5 is a data plot (partial separation efficiency curve) of partial separation efficiency vs. particle size showing the effect on the particle size.
1 サイクロン塔本体 2 胴筒 21 直筒部 22 逆円錐台形状部 22a 上部逆円錐台形状部 22b 下部逆円錐台形状部 23 エッジ付き拡大部 23a 拡大部 23b エッジ部 3 粉体導入手段 31 移動式案内板 4 上下可動式出口管(微粉回収手段) 41 整流筒 5 粗粉回収手段 6 可動円錐体 7 給気ポート(ブローアップ機構) 8 排気ポート(ブローダウン機構) X 分級点可変型サイクロン装置 DESCRIPTION OF SYMBOLS 1 Cyclone tower main body 2 Body 21 Straight cylinder part 22 Inverted truncated cone shape part 22a Upper inverted truncated cone shape part 22b Lower inverted truncated cone shape part 23 Enlarged part with edge 23a Enlarged part 23b Edge part 3 Powder introduction means 31 Mobile guide Plate 4 Up / down movable outlet pipe (fine powder collecting means) 41 Rectifier cylinder 5 Coarse powder collecting means 6 Movable cone 7 Air supply port (blow-up mechanism) 8 Exhaust port (blow-down mechanism) X Classification point variable cyclone device
Claims (4)
するためのサイクロン装置において、粉体の分級点を可
変に調整し任意粒径の粉体を選択的に捕集するようにし
た分級点可変型サイクロン装置であって、上方に直筒部
と下方に逆円錐台形状部とを連設した胴筒を有するサイ
クロン塔本体が、分散粉体を含んだ空気流をサイクロン
塔本体の内壁面に沿って周方向に吸い込むために直筒部
に設けられた全円周渦巻状粉体導入手段の内部に進退可
能なスライド壁を形成して空気流の吹込先端の断面積を
可変に調整するようにした円弧状の移動式案内板と;胴
筒上部の中央位置から直筒部内に可変長に垂下して下端
が開口し導入された空気流が胴筒内周壁に沿って旋回す
ることで形成される渦流の中心部に上方から弱い負圧を
作用して微粉を回収するための上下可動式出口管と;胴
筒の概略中間位置で逆円錐台形状部の絞り径を胴筒の接
線方向に拡径した拡大部を設けて垂直姿勢の上下二段か
らなる段付き構造とするとともに下部逆円錐台形状部の
天蓋を形成し、上部逆円錐台形状部の下端を下部逆円錐
台形状部内に一定長垂下したエッジ部を設けて開口連絡
するようにしたエッジ付き拡大部と;胴筒下端に開口接
続し前記渦流に乗って沈降する粗粉を回収するための粗
粉回収手段の開口接続部に設けられ、下側から上方の胴
筒内に向かって円錐形の尖頂部が臨むように対向し上下
動してこれらの間に環状の隙間を形成する可動円錐体
と;この可動円錐体を収容する粗粉回収手段上部の壁面
に給気ポート及び排気ポートを設けて外部から渦流速度
を調整して分級点可動を増補するためのブローアップ及
びブローダウン機構とを具備したことを特徴とする分級
点可変型サイクロン装置。1. A cyclone device for classifying and collecting powder having a particle size distribution, wherein the classification point of the powder is variably adjusted to selectively collect powder having an arbitrary particle size. A cyclone tower body having a barrel having a straight cylinder portion and an inverted frustoconical shape portion connected downward, wherein a cyclone tower body is provided. A retractable slide wall is formed inside the full-circular spiral powder introduction means provided in the straight cylindrical portion to suck in the circumferential direction along the inner wall surface of the An arc-shaped movable guide plate which is adjusted; a variable length hanging down from the center position of the upper part of the barrel into the straight part, the lower end of which is opened, and the introduced air flow swirls along the inner circumferential wall of the barrel. Fine powder is collected by applying a weak negative pressure from above to the center of the vortex formed by Up and down movable outlet pipe for adjusting the diameter of the inverted frustoconical portion at the approximate middle position of the barrel, and an enlarged portion with a diameter increased in the tangential direction of the barrel. With the structure, the lower inverted frustoconical shape canopy is formed, and the lower end of the upper inverted frustoconical shape is provided with an edge hanging down a certain length in the lower inverted frustoconical shape to connect the opening. An opening connected to the lower end of the barrel and provided at an open connection of coarse powder collecting means for collecting coarse powder settling on the vortex, and having a conical shape from the lower side toward the upper barrel. A movable cone which moves upward and downward so as to face the apex to form an annular gap therebetween; and an air supply port and an exhaust port are provided on a wall surface above the coarse powder collecting means for accommodating the movable cone. To adjust the vortex velocity from outside to increase the classification point movement Classification point, characterized by comprising a low-up and blowdown mechanism tunable cyclone.
方に逆円錐台形状部又は拡大壁部を有する逆円錐台形状
部とを連設した胴筒を有するとともに、直筒部に接続し
分散粉体を含んだ空気流をサイクロン塔本体の内壁面に
沿って周方向に吸い込むための進出後退可能なスライド
壁を有した粉体導入手段と、胴筒上部の中央位置から直
筒部内に一定長垂下して下端が開口し導入された空気流
が胴筒内周壁に沿って旋回することで形成される渦流の
中心部に上方から弱い負圧を作用して微粉を回収するた
めの微粉回収手段と、胴筒下端に開口接続し前記渦流に
乗って沈降する粗粉を回収するための粗粉回収手段と、
前記拡大壁部内又は前記胴筒下端の開口連絡部に下側か
ら上部胴筒内に向かって円錐形の尖頂部が臨むように対
向し上下動してこれらの間に環状の隙間を形成する可動
円錐体とを有したサイクロン装置において、胴筒の逆円
錐台形状部にエッジ付き拡大部を形成して垂直姿勢の上
下二段からなる段付き逆円錐台形状部を構成し、前記エ
ッジ付き拡大部に上部逆円錐台形状部下端の絞り径を胴
筒の接線方向に拡径形成した拡大部を設けてこれを天蓋
とする下部逆円錐台形状部を接続するとともに上部逆円
錐台形状部の下端を下部逆円錐台形状部内に一定長垂下
して開口連絡するエッジ部を設けたことを特徴とする分
級点可変型サイクロン装置。2. The cyclone tower main body has a barrel having an upwardly-directed truncated cone portion and an inverted truncated cone-shaped portion or an inverted truncated cone-shaped portion having an enlarged wall portion connected downward, and is connected to the straight cylinder portion for dispersion. A powder introduction means having a slide wall which can advance and retreat for circumferentially sucking the air flow containing the powder along the inner wall surface of the cyclone tower main body, and a fixed length from the center position of the upper part of the barrel into the straight cylinder part. A fine powder collecting means for collecting a fine powder by applying a weak negative pressure from above to a central portion of a vortex formed by a suspended, lower end opening and an introduced air flow swirling along the inner peripheral wall of the barrel. A coarse powder collecting means for collecting coarse powder that is connected to the lower end of the barrel and is settled on the vortex,
Movable to oppose and move up and down such that a conical apex portion faces from the lower side toward the inside of the upper barrel in the enlarged wall portion or the opening connecting portion at the lower end of the barrel to form an annular gap therebetween. A cyclone device having a conical body, wherein an enlarged truncated cone-shaped portion is formed in the inverted truncated cone-shaped portion of the barrel to form a stepped inverted truncated cone-shaped portion having two vertical stages in a vertical posture, and The upper inverted truncated cone-shaped portion is provided with an enlarged portion formed by increasing the aperture diameter at the lower end in the tangential direction of the barrel, and is connected to the lower inverted truncated cone shaped portion having the canopy as the upper inverted truncated cone shaped portion. A classifying point variable type cyclone device, wherein an edge portion is provided with a lower end hanging down a predetermined length in a lower inverted truncated cone shape and communicating with an opening.
能として微粉の平均滞留時間を増減し微粉回収における
平均粒径を調整するための上下可動式出口管であり、か
つ、微粉の捕集効率の低下を防止するための整流筒を内
蔵したものである請求項2記載の分級点可変型サイクロ
ン装置。3. A fine powder collecting means is a vertically movable outlet pipe for adjusting the average particle diameter in fine powder collection by increasing or decreasing the average residence time of fine powder so as to be displaceable in the vertical direction, and collecting fine powder. 3. The variable classification point cyclone device according to claim 2, further comprising a rectifying cylinder for preventing a decrease in efficiency.
の壁面に給気ポート及び排気ポートを設けるとともに外
部から渦流速度を調整して分級点可動を増補するための
ブローアップ及びブローダウン機構を装設した請求項2
記載の分級点可変型サイクロン装置。4. A blow-up and blow-down mechanism for providing an air supply port and an exhaust port on the upper wall surface of the coarse powder collecting means accommodating the movable cone and adjusting the vortex velocity from the outside to increase the classification point movement. Claim 2 equipped with
Classification point variable type cyclone device described.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9786195A JP2742669B2 (en) | 1995-03-29 | 1995-03-29 | Variable classification point cyclone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9786195A JP2742669B2 (en) | 1995-03-29 | 1995-03-29 | Variable classification point cyclone |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08266938A JPH08266938A (en) | 1996-10-15 |
JP2742669B2 true JP2742669B2 (en) | 1998-04-22 |
Family
ID=14203541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9786195A Expired - Fee Related JP2742669B2 (en) | 1995-03-29 | 1995-03-29 | Variable classification point cyclone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2742669B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8403149B2 (en) | 2005-11-18 | 2013-03-26 | Ricoh Company, Ltd. | Cyclone classifier, flash drying system using the cyclone classifier, and toner prepared by the flash drying system |
JP2016019953A (en) * | 2014-07-15 | 2016-02-04 | 兼松エンジニアリング株式会社 | Cyclone type dust collector |
KR101925745B1 (en) * | 2018-03-09 | 2018-12-05 | 성창호 | A dust collecting device |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4732276B2 (en) * | 2005-11-18 | 2011-07-27 | 株式会社リコー | Cyclone classifier, airflow drying system and toner |
JP4769163B2 (en) * | 2006-10-27 | 2011-09-07 | 寿産業株式会社 | Roll crushing system using cyclone collector |
JP2008221205A (en) * | 2007-02-13 | 2008-09-25 | Metawater Co Ltd | Dust collection method of exhaust gas from sludge incinerator |
DE102008030650B4 (en) * | 2008-06-27 | 2011-06-16 | PROMECON Prozeß- und Meßtechnik Conrads GmbH | Apparatus and method for controlling the fuel-to-air ratio of pulverized coal in a coal fired power plant |
JP5039074B2 (en) * | 2009-02-27 | 2012-10-03 | 株式会社カワタ | Cyclone equipment |
US8387645B2 (en) | 2010-12-30 | 2013-03-05 | Uop Llc | Methods and apparatus for contacting a fluid stream with particulate solids |
JP5866872B2 (en) * | 2011-08-29 | 2016-02-24 | 株式会社Ihi | Cyclone system, gasification gas generation system, and cyclone control method |
JP2013146653A (en) * | 2012-01-17 | 2013-08-01 | Yoshito Nishioka | Cyclone type classifier |
KR101225046B1 (en) * | 2012-07-25 | 2013-01-22 | 한국에너지기술연구원 | Apparatus for particle separating formed vortex induction part |
KR101195791B1 (en) * | 2012-08-23 | 2012-11-05 | 뉴엔텍(주) | Cyclone having flow control and cleaning function |
JP6533522B2 (en) * | 2014-06-16 | 2019-06-19 | 綜研化学株式会社 | Cyclone-type powder classifier |
CN104235834B (en) * | 2014-09-24 | 2016-08-17 | 株洲火炬工业炉有限责任公司 | CFBB high-temperature separator |
CN108136444B (en) * | 2015-09-17 | 2021-02-02 | 国立研究开发法人产业技术总合研究所 | Object screening device and method |
CN110694903B (en) * | 2018-07-09 | 2024-03-01 | 福建南方路面机械股份有限公司 | Fine stone powder separating equipment and using method thereof |
KR102049196B1 (en) * | 2019-04-15 | 2019-11-26 | 이호찬 | Cyclone separator |
KR102570013B1 (en) * | 2022-05-12 | 2023-08-24 | 한국동서발전(주) | Cyclone separator |
CN115518780A (en) * | 2022-09-28 | 2022-12-27 | 询莱流体设备(太仓)有限公司 | Cyclone separator with adjustable separation efficiency and adjusting method |
-
1995
- 1995-03-29 JP JP9786195A patent/JP2742669B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8403149B2 (en) | 2005-11-18 | 2013-03-26 | Ricoh Company, Ltd. | Cyclone classifier, flash drying system using the cyclone classifier, and toner prepared by the flash drying system |
JP2016019953A (en) * | 2014-07-15 | 2016-02-04 | 兼松エンジニアリング株式会社 | Cyclone type dust collector |
KR101925745B1 (en) * | 2018-03-09 | 2018-12-05 | 성창호 | A dust collecting device |
WO2019172720A1 (en) * | 2018-03-09 | 2019-09-12 | 성창호 | Dust-collecting device |
Also Published As
Publication number | Publication date |
---|---|
JPH08266938A (en) | 1996-10-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2742669B2 (en) | Variable classification point cyclone | |
US6596170B2 (en) | Long free vortex cylindrical telescopic separation chamber cyclone apparatus | |
US4743363A (en) | Classifying cyclone | |
US20020178703A1 (en) | Recirculation cyclones for dedusting and dry gas cleaning | |
WO2012036845A1 (en) | Cyclone separator | |
JPH05161861A (en) | Cyclone dust collector | |
CN107427847A (en) | Improved cyclone pipe separator | |
CN107502692A (en) | The tangential multi-pipeline cyclone dust collectors of blast furnace gas one-time dedusting | |
JPH0525717Y2 (en) | ||
MXPA05000719A (en) | Cyclone separator with a vortex extender pin. | |
JP4383615B2 (en) | Cyclone classifier | |
Jamshidifard et al. | Improved fine particle removal from gas streams using a new helical-duct dust concentrator | |
CN212119297U (en) | Cyclone separator with particle material reverse cyclone gas flow control and multiple particle size distribution | |
JP2722126B2 (en) | Cyclone | |
JPH0746357Y2 (en) | Cyclone | |
JP6666206B2 (en) | Cyclone device and classification method | |
JP2000237636A (en) | Cyclone device for collecting powder, and producing device of toner | |
JP3336440B2 (en) | Low pressure drop cyclone | |
JPS6327799Y2 (en) | ||
JP3463078B2 (en) | Airflow classifier | |
JP2580193B2 (en) | Cyclone type dry classifier | |
CN214440069U (en) | Separator exhaust sleeve and coarse powder separator | |
JPH06238197A (en) | Cyclone device | |
JP7435794B2 (en) | Cyclone dust collector and dust collection method using cyclone dust collector | |
JPH04349949A (en) | Cyclone type dry classifying device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100206 Year of fee payment: 12 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110206 Year of fee payment: 13 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110206 Year of fee payment: 13 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110206 Year of fee payment: 13 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120206 Year of fee payment: 14 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120206 Year of fee payment: 14 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120206 Year of fee payment: 14 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130206 Year of fee payment: 15 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130206 Year of fee payment: 15 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |