JP4119298B2 - Cyclone separator - Google Patents

Cyclone separator Download PDF

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Publication number
JP4119298B2
JP4119298B2 JP2003120230A JP2003120230A JP4119298B2 JP 4119298 B2 JP4119298 B2 JP 4119298B2 JP 2003120230 A JP2003120230 A JP 2003120230A JP 2003120230 A JP2003120230 A JP 2003120230A JP 4119298 B2 JP4119298 B2 JP 4119298B2
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Japan
Prior art keywords
chamber
pipe
outlet
partition plate
outlet pipe
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JP2003120230A
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JP2004321938A (en
Inventor
貴信 大谷
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Kurimoto Ltd
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Kurimoto Ltd
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Description

【０００１】
【発明の属する技術分野】
この発明は、例えば、工場で発生する含塵ガス（粉塵ガス）を清浄空気と粉塵に分離するサイクロン式分離機に関するものである。
【０００２】
【従来の技術】
この種のサイクロン式分離機にマルチサイクロンがあり、そのマルチサイクロンは、図３乃至図５に示すように、ケーシング１内を上下に隔てた２枚の仕切板２、３で区画し、その両仕切板２、３で挟まれた区画室を含塵ガスの導入室４、下側仕切板２より下側の区画室を集塵室５、上側の仕切板３より上側の区画室を清浄空気室６としたものである。集塵室５に上下方向の集塵管７がその上端を下側の仕切板２に固定して設けられているとともに、その集塵管７の上端が下側仕切板２上面に開口し、導入室４には上下方向の出口管８が設けられ、その下端が集塵管７の上端入口からベーン９を介在して挿入され、その出口管８の上端は仕切板３を気密に貫通して清浄空気室６に開口している。
【０００３】
このマルチサイクロンは、セメント工場、製鉄所等で発生する含塵ガス（粉塵ガス）ａが、空気輸送などにより、矢印のごとく、ケーシング１側面の一方向から導入室４に送り込まれ、その含塵ガスａは、集塵管７にベーン９を介して入り込み、そのベーン９の通過により旋回流となって集塵管７内で塵ｂを分離し、その分離塵ｂは集塵管７の出口から集塵室５に排出されるとともに、塵ｂの分離されたガス（空気）ｃは出口管８にその下端入口から入り込んで上端出口から清浄空気室６に至り、必要な処理がされた後、大気に排出される。集塵室５の集塵は適宜に排出される（特許文献１、２参照）。
【０００４】
【特許文献１】
実開平５−１７３２６号公報
【特許文献２】
実開平５−２２０４６号公報
【０００５】
【発明が解決しようとする課題】
このマルチサイクロンなどのサイクロン式分離機において、図５に示すように、出口管８は導入室４内に露出して含塵ガスａに晒されるため、摩耗が激しい。特に、導入室４の入口に臨む面はその含塵ガスａをまともに受けるため、その摩耗は激しく、その摩耗はその面に局部的に生じて穴が早期に開く。
【０００６】
従来では、出口管８は仕切板３に溶接などにより固定されているため、出口管８は摩耗により穴が開くまで使用し、穴が一個所でも開けば、その出口管８を溶接部の除去及び切断などにより取外して新しい出口管８に交換している。この一部の欠陥で出口管８を交換するのは無駄であり、コスト的に問題である。また、このとき、ベーン９は出口管８に取付けているため、出口管８の交換毎に、そのベーン９を最適な位置にセットしなければならず、その作業は煩雑となっている。因みに、ベーン９が所要の位置（最適な位置）にないと、有効に旋回流が生じず、円滑な集塵（分離）ができない。
【０００７】
この発明は、上記実情に鑑み、出口管の交換サイクルを長くすることを課題とする。
【０００８】
【課題を解決するための手段】
上記課題を解決するために、この発明は、出口管をその軸心周りに回転可能とし、穴が開く寸前に出口管を回して、摩耗の少ない面を摩耗し易い面に臨ませるようにしたのである。
【０００９】
このようにすれば、最大限、出口管の全周面に穴が開く寸前まで一つの出口管を使用でき、交換回数が少なくなる（交換サイクルが長くなる）などコスト面において有利となる。
【００１０】
【発明の実施の形態】
この発明の実施の形態としては、上下方向の集塵管にその上端から出口管をベーンを介在して挿入し、前記集塵管にその上端入口から流体を送り込み、前記ベーンによりその流体に旋回流を生じさせて固形物を分離し、その分離物を集塵管の出口から排出するとともに、分離流体を出口管の下端入口から導入して上端出口から排出するサイクロン式分離機において、前記出口管を集塵管に対しその軸心周りに回転可能とした構成を採用し得る。
【００１１】
このサイクロン式分離機は、通常、ケーシング内に設けられ、その場合、上記ケーシング内は出口管の出口と集塵管の入口と集塵管の出口がそれぞれ仕切板により区画されており、前記出口管の出口と集塵管の入口の仕切板に出口管の受管を固定し、その受管に出口管を回転可能に挿通するとともに、出口管を前記集塵管の入口と集塵管の出口の仕切板に挿通して、出口管を集塵管に対しその軸心周りに回転可能とした構成を採用することができる。
【００１２】
これらの構成において、上記ベーンは集塵管に取付ければ、出口管の取付位置には関係なく、ベーンは常に位置決めされているため、出口管の交換毎にベーンの位置決めをする必要はなくなる。
【００１３】
【実施例】
一実施例を図１及び図２に示し、この実施例は、図３、４に示したマルチサイクロンに係わり、同一の符号は同一物を示し、その特徴は、ベーン９を集塵管７に取付け、そのベーン９内に出口管８をその軸心周りに回転可能に嵌め、その出口管８の上端部を仕切板３に貫通し、その上端部を仕切板３に固定の受管１０にパッキング１１を介して回転可能に支持した点である。受管１０は止め板１２を介して溶接などにより仕切板３に固定されており、その上端全周にはフランジ１０ａを有する。このフランジ１０ａにパッキング押え１３をねじ止めしてパッキング１１を押えて受管１０と出口管８の間の気密性を保つ。
【００１４】
出口管８の上端部にはピン１４がその両端を突出させて取付けられており、そのピン１４の両端がフランジ１０ａ（パッキング押え１３）に当接することにより受管１０に出口管８がその軸心周りに回転可能に支持される。このため、含塵ガスａに晒されることにより摩耗した面に穴が開く寸前に、ピン１４で持って出口管８を適宜に回して、その摩耗した面を含塵ガスａに晒される個所から退避させ、新たな面をその含塵ガスａに晒される個所に臨ませることにより、出口管８のほぼ全周囲が摩耗により穴が開く直前まで使用することができ、出口管８の交換サイクルはすこぶる長くなる。出口管８の回転角度は摩耗面積に応じて適宜に設定すればよいが、例えば、１２０度とすれば、三方向の面 (摩耗面）を使用でき、 一面のみの従来に比べて３倍の寿命となる。なお、出口管８、集塵管７にはクロム鋳鉄などの耐摩耗性の材質を使用すると良い。摩耗度（交換時期）は、一定期間毎、目視などによって適宜に選定する。図中、１５はバックアップリングである。
【００１５】
出口管８がその全周囲が摩耗して交換が必要となれば、受管１０からその摩耗した出口管８を外して新しい出口管８に交換する。このとき、ベーン９は集塵管７に取付けているため、出口管８の交換に関係なく、その位置は当初の最適な位置にあり、出口管８の交換と同時に円滑な集塵を行うことができる。
【００１６】
なお、集塵管７も図示のごとく、上下に分割すれば、摩耗した管７ａ又は７ｂのみを取り替えるだけで良い。
【００１７】
この発明のサイクロン式分離機は、マルチサイクロンに限らず、すべてのこの種の出口管８と集塵管７とからなる構成のものに採用することができ、その分離流体も、セメント工場、製鉄所などにおける含塵ガス（粉塵ガス）に限らず、種々の分離、例えば、砂、砂利などの分離に採用できる。砂などは水輸送となる。
【００１８】
【発明の効果】
この発明は、以上のように、出口管をその軸心周りに回転可能としたので、出口管の寿命を延すことができ、そのため、出口管の交換時の溶接・切断などの煩わしい作業もなくなる等のメンテナンス効率が向上するとともに、ランニングコストの削減を図ることができる。
【図面の簡単な説明】
【図１】一実施例の要部断面図
【図２】図１の要部拡大図
【図３】マルチサイクロンの一部切欠き斜視図
【図４】図３の要部断面図
【図５】従来例の要部断面図
【符号の説明】
ａ 含塵ガス
ｂ 分離塵
ｃ 清浄空気
１ ケーシング
２ 下側仕切板
３ 上側仕切板
４ 含塵ガス導入室
５ 集塵室
６ 清浄空気室
７ 集塵管
８ 出口管
９ ベーン
１０ 受管
１０ａ 受管フランジ
１１ パッキング
１２ 止め板
１３ パッキング押え
１４ 出口管用ピン[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cyclonic separator that separates dust-containing gas (dust gas) generated in a factory into clean air and dust, for example.
[0002]
[Prior art]
This type of cyclonic separator has a multi-cyclone, and the multi-cyclone is divided into two partition plates 2 and 3 that are vertically separated in the casing 1 as shown in FIGS. partition plates 2 dirty gas introducing chamber 4 of the compartment enclosed by, dust chamber 5 the compartment below the lower partition plate 2, clean air upper compartment from the upper partition plate 3 This is chamber 6. The dust collection chamber 5 is provided with a vertical dust collection tube 7 with its upper end fixed to the lower partition plate 2, and the upper end of the dust collection tube 7 opens to the upper surface of the lower partition plate 2 , the introduction chamber 4 is provided vertically in the outlet pipe 8, the lower end is inserted interposed vanes 9 from the upper end inlet of the dust collection pipe 7, the upper end of the outlet tube 8 through the partition plate 3 in an airtight Open to the clean air chamber 6.
[0003]
In this multi-cyclone, dust-containing gas (dust gas) a generated in a cement factory, steel mill, etc. is fed into the introduction chamber 4 from one side of the casing 1 as indicated by an arrow by pneumatic transportation. The gas a enters the dust collection tube 7 via the vane 9 and is swirled by the passage of the vane 9 to separate the dust b in the dust collection tube 7, and the separated dust b is the outlet of the dust collection tube 7. The gas (air) c from which the dust b has been separated enters the outlet pipe 8 from the lower end inlet and reaches the clean air chamber 6 from the upper end outlet to be subjected to the necessary treatment. Discharged into the atmosphere. The dust collection in the dust collection chamber 5 is appropriately discharged (see Patent Documents 1 and 2).
[0004]
[Patent Document 1]
Japanese Utility Model Laid-Open No. 5-17326 [Patent Document 2]
Japanese Utility Model Publication No. 5-22046
[Problems to be solved by the invention]
In this cyclonic separator such as a multi-cyclone, as shown in FIG. 5, the outlet pipe 8 is exposed in the introduction chamber 4 and exposed to the dust-containing gas a. In particular, since the surface facing the inlet of the introduction chamber 4 receives the dust-containing gas “a” properly, the wear is severe, and the wear is locally generated on the surface and the hole is opened early.
[0006]
Conventionally, since the outlet pipe 8 is fixed to the partition plate 3 by welding or the like, the outlet pipe 8 is used until a hole is opened due to wear, and if even one hole is opened, the outlet pipe 8 is removed from the welded portion. And it is removed by cutting or the like and replaced with a new outlet pipe 8. It is useless and costly to replace the outlet pipe 8 due to this partial defect. At this time, since the vane 9 is attached to the outlet pipe 8, every time the outlet pipe 8 is replaced, the vane 9 must be set at an optimal position, and the work is complicated. Incidentally, if the vane 9 is not in a required position (optimal position), a swirl flow is not effectively generated, and smooth dust collection (separation) cannot be performed.
[0007]
This invention makes it a subject to lengthen the replacement | exchange cycle of an exit pipe | tube in view of the said situation.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention enables the outlet pipe to be rotated around its axis, and turns the outlet pipe just before the hole is opened so that the surface with less wear faces the surface that is easily worn. It is.
[0009]
In this way, one outlet pipe can be used up to the point where holes are formed in the entire peripheral surface of the outlet pipe, and this is advantageous in terms of cost, such as fewer replacements (longer replacement cycle).
[0010]
DETAILED DESCRIPTION OF THE INVENTION
As an embodiment of the present invention, an outlet pipe is inserted into the dust collecting pipe in the vertical direction from the upper end thereof via a vane, a fluid is fed into the dust collecting pipe from the upper end inlet, and the fluid is swirled by the vane. In the cyclone type separator for separating the solid matter by generating a flow, discharging the separated substance from the outlet of the dust collecting pipe, and introducing the separation fluid from the lower end inlet of the outlet pipe and discharging from the upper end outlet, the outlet It is possible to adopt a configuration in which the tube is rotatable about its axis with respect to the dust collection tube.
[0011]
This cyclonic separator is usually provided in a casing, in which case the outlet of the outlet pipe, the inlet of the dust collecting pipe, and the outlet of the dust collecting pipe are partitioned by a partition plate in the casing. An outlet pipe receiving pipe is fixed to a partition plate between the pipe outlet and the dust collecting pipe inlet, and the outlet pipe is rotatably inserted into the receiving pipe, and the outlet pipe is connected to the dust collecting pipe inlet and the dust collecting pipe. It is possible to adopt a configuration in which the outlet pipe can be rotated about its axis with respect to the dust collecting pipe by being inserted into the partition plate of the outlet.
[0012]
In these configurations, if the vane is attached to the dust collection pipe, the vane is always positioned regardless of the attachment position of the outlet pipe, so that it is not necessary to position the vane every time the outlet pipe is replaced.
[0013]
【Example】
One embodiment is shown in FIGS. 1 and 2, and this embodiment is related to the multi-cyclone shown in FIGS. 3 and 4. The same reference numerals denote the same parts, and the feature is that the vane 9 is attached to the dust collecting pipe 7. The outlet pipe 8 is fitted in the vane 9 so as to be rotatable around its axis, the upper end of the outlet pipe 8 is passed through the partition plate 3, and the upper end of the outlet pipe 8 is fixed to the partition plate 3. This is a point that is rotatably supported via the packing 11. The receiving tube 10 is fixed to the partition plate 3 by welding or the like via a stop plate 12, and has a flange 10a on the entire upper end. The packing presser 13 is screwed to the flange 10 a to hold the packing 11 and keep the airtightness between the receiving tube 10 and the outlet tube 8.
[0014]
Pins 14 are attached to the upper end portion of the outlet pipe 8 so that both ends thereof protrude, and both ends of the pin 14 come into contact with the flange 10a (packing presser 13) so that the outlet pipe 8 is connected to the receiving pipe 10 with its shaft. It is supported so as to be rotatable around the heart. For this reason, just before the hole is opened in the surface worn by exposure to the dust-containing gas a, the outlet pipe 8 is appropriately rotated by the pin 14 and the worn surface is exposed to the dust-containing gas a. By evacuating and exposing the new surface to the part exposed to the dust-containing gas a, the entire circumference of the outlet pipe 8 can be used until immediately before the hole is opened due to wear. It will be a long time. The rotation angle of the outlet pipe 8 may be set as appropriate according to the wear area. For example, if it is 120 degrees, a three-direction surface (wear surface) can be used, which is three times that of a conventional one surface. Life is reached. The outlet pipe 8 and the dust collection pipe 7 may be made of wear-resistant material such as chrome cast iron. The degree of wear (replacement time) is appropriately selected by visual inspection at regular intervals. In the figure, reference numeral 15 denotes a backup ring.
[0015]
If the outlet pipe 8 is worn all around and needs to be replaced, the worn outlet pipe 8 is removed from the receiving pipe 10 and replaced with a new outlet pipe 8. At this time, since the vane 9 is attached to the dust collection pipe 7, the position is in the initial optimum position regardless of the replacement of the outlet pipe 8, and smooth dust collection is performed simultaneously with the replacement of the outlet pipe 8. Can do.
[0016]
In addition, if the dust collection pipe | tube 7 is divided | segmented up and down like illustration, it is only necessary to replace | exchange only the worn pipe | tube 7a or 7b.
[0017]
The cyclonic separator according to the present invention is not limited to a multi-cyclone, and can be used for all types of the outlet pipe 8 and the dust collecting pipe 7, and the separation fluid is also used in cement factories and steel makers. The present invention is not limited to dust-containing gas (dust gas) in places and the like, and can be used for various separations such as separation of sand and gravel. Sand is used for water transportation.
[0018]
【The invention's effect】
In the present invention, as described above, the outlet pipe can be rotated around its axis, so that the life of the outlet pipe can be extended. Therefore, troublesome work such as welding and cutting when replacing the outlet pipe is also possible. Maintenance efficiency such as elimination can be improved, and running cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a main part of one embodiment. FIG. 2 is an enlarged view of a main part of FIG. 1. FIG. 3 is a partially cutaway perspective view of a multicyclone. ] Cross-sectional view of main part of conventional example [Explanation of symbols]
a dust-containing gas b separated dust c clean air 1 casing 2 lower partition plate 3 upper partition plate 4 dust-containing gas introduction chamber 5 dust collection chamber 6 clean air chamber 7 dust collection tube 8 outlet tube 9 vane 10 receiving tube 10a receiving tube Flange 11 Packing 12 Stop plate 13 Packing retainer 14 Exit pipe pin

Claims (2)

ケーシング（１）内を上下に隔てた２枚の仕切板（２、３）で区画し、その両仕切板（２、３）で挟まれた区画室を固形物（ｂ）を含有する流体（ａ）の導入室（４）、下側仕切板（２）より下側の区画室を集塵室（５）、上側の仕切板（３）より上側の区画室を清浄空気室（６）とし、前記集塵室（５）に上下方向の集塵管（７）をその上端を前記下側の仕切板（２）に固定して設けるとともに、その集塵管（７）の上端を前記下側の仕切板（２）上面に開口し、前記導入室（４）に設けた上下方向の出口管（８）は、その下端が前記集塵管（７）にその上端入口からベーン（９）を介在して挿入されているとともに、上端が前記上側の仕切板（３）を気密に貫通して前記清浄空気室（６）に開口し、前記導入室（４）内にその導入室（４）側面一方向から前記流体（ａ）を送り込んで、その流体（ａ）を、前記集塵管（７）にその上端入口から送り込み、前記ベーン（９）によりその流体（ａ）に旋回流を生じさせて前記固形物（ｂ）を分離し、その分離物（ｂ）を集塵管（７）の下端出口から前記集塵室（５）に排出するとともに、分離流体（ｃ）を前記出口管（８）の下端入口から導入して上端出口から前記清浄空気室（６）に排出するサイクロン式分離機において、
上記出口管（８）を上記集塵管（７）に対しその軸心周りに回転可能とするとともに、上記ベーン（９）を前記集塵管（７）に取付けたことを特徴とするサイクロン式分離機。 The casing (1) is partitioned by two partition plates (2, 3) separated vertically, and the partition chamber sandwiched between the partition plates (2, 3) contains a fluid containing solid matter (b) ( a) The introduction chamber (4), the compartment below the lower partition plate (2) is the dust collection chamber (5), and the compartment above the upper partition plate (3) is the clean air chamber (6). The dust collecting chamber (5) is provided with a vertical dust collecting pipe (7) with its upper end fixed to the lower partition plate (2), and the upper end of the dust collecting pipe (7) The upper outlet pipe (8) provided on the upper surface of the side partition plate (2) and provided in the introduction chamber (4) has a lower end extending from the upper end inlet to the vane (9) to the dust collecting pipe (7). together are inserted interposed, said upper end above the partition plate (3) and opens into the clean air chamber through the gas-tight (6), the inlet chamber (4) in its introduction chamber (4 Is from the side direction fed to the fluid (a), the fluid (a), fed from its upper end the inlet to the dust collection pipe (7), resulting a swirling flow by the vanes (9) to the fluid (a) the solid (b) separated by, while discharging the separated product to (b) in Atsumarichirikan (7) the dust collecting chamber from the lower end outlet (5), said outlet tube separation fluid (c) In the cyclonic separator that is introduced from the lower end inlet of (8) and is discharged from the upper end outlet to the clean air chamber (6) ,
Together with the outlet pipe (8) is rotatable about its axis relative to the dust collecting pipe (7), to the feature in that attached the vane (9) to the dust collection pipe (7) Rusa Icron type separator. 上記上側の仕切板（３）に上記出口管（８）の受管（１０）を固定し、その受管（１０）に前記出口管（８）をパッキング（１１）を介して回転可能に挿通して、その出口管（８）を上記集塵管（７）に対しその軸心周りに回転可能としたことを特徴とする請求項１に記載のサイクロン式集塵機。Rotatably inserted through the packing (11) to secure the receiving tube (10), the outlet tube to the receiving tube (10) to (8) of the outlet pipe (8) to the upper side of the partition plate (3) to a cyclone dust collector according to claim 1, characterized in that the outlet pipe (8) and rotatable about its axis relative to the Atsumarichirikan (7).
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