JP2008080244A - Multicyclone type dust collector - Google Patents

Multicyclone type dust collector Download PDF

Info

Publication number
JP2008080244A
JP2008080244A JP2006262904A JP2006262904A JP2008080244A JP 2008080244 A JP2008080244 A JP 2008080244A JP 2006262904 A JP2006262904 A JP 2006262904A JP 2006262904 A JP2006262904 A JP 2006262904A JP 2008080244 A JP2008080244 A JP 2008080244A
Authority
JP
Japan
Prior art keywords
cyclone
partition plate
upper partition
inner cylinder
dust collector
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.)
Granted
Application number
JP2006262904A
Other languages
Japanese (ja)
Other versions
JP4792360B2 (en
Inventor
Michio Tabata
三千雄 田端
Kenji Ito
賢治 伊藤
Kazutsugu Kishigami
和嗣 岸上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Nippon Steel Engineering Co Ltd
Original Assignee
Nippon Steel Corp
Nippon Steel Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp, Nippon Steel Engineering Co Ltd filed Critical Nippon Steel Corp
Priority to JP2006262904A priority Critical patent/JP4792360B2/en
Publication of JP2008080244A publication Critical patent/JP2008080244A/en
Application granted granted Critical
Publication of JP4792360B2 publication Critical patent/JP4792360B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Cyclones (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multicyclone type dust collector which provides a worker with improved efficiency of work for replacing cyclone inner cylinders, facilitates management of spare parts by reducing kinds of spare parts of the cyclone inner cylinders for replacement, and enables replacement cycles of the cyclone inner cylinders to be prolonged. <P>SOLUTION: In this multicyclone type dust collector, upper partition plates are formed into stepwise partition plates with sectional areas of gas introducing chambers decreased toward deep parts from the gas introducing direction, super stud bolts or stud bolts are set on horizontal parts of the stepwise upper partition plates, and flanges provided in the cyclone inner cylinders disposed penetrating through the stepwise upper partition plates are engaged with super stud bolts or the stud bolts. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、粉塵を含有する気体から粉塵を分離除去するマルチサイクロン式集塵機に関し、特に、コークス炉や精錬炉等から発生する粉塵（ダスト）を含有する排ガスから粉塵を分離除去するマルチサイクロン式集塵機に関するものである。   The present invention relates to a multi-cyclone type dust collector that separates and removes dust from a gas containing dust, and more particularly, a multi-cyclone type dust collector that separates and removes dust from exhaust gas containing dust generated from a coke oven or a refining furnace. It is about.

製鉄工場においては、石炭をコークス化するコークス炉や溶鋼を精錬する精錬炉等から多量の排ガスが発生する。排ガス中には多量の粉塵（ダスト）が含有されているので、排ガス中の粉塵を分離除去して排ガスを有効活用することが行われている。   In an iron factory, a large amount of exhaust gas is generated from a coke oven for coking coal or a refining furnace for refining molten steel. Since a large amount of dust (dust) is contained in the exhaust gas, the exhaust gas is effectively utilized by separating and removing the dust in the exhaust gas.

従来、このような排ガス中に含まれている粉塵を分離除去するのには、構造が簡単で集塵能力も高いことからサイクロンを複数本設置したマルチサイクロン式集塵機が使用されている。   Conventionally, in order to separate and remove dust contained in such exhaust gas, a multi-cyclone type dust collector having a plurality of cyclones is used because of its simple structure and high dust collection capability.

マルチサイクロン式集塵機は、複数のサイクロン外筒を１つのケーシング内に配列し、そのケーシングはガスが入るガス導入室、分離されたダストが堆積する集塵室、ガスが出て行く清浄ガス室の３つに仕切られた構造からなっている。   A multi-cyclone type dust collector has a plurality of cyclone outer cylinders arranged in one casing, and the casing includes a gas introduction chamber into which gas enters, a dust collection chamber in which separated dust accumulates, and a clean gas chamber from which gas exits. It consists of three divided structures.

図１は、従来のマルチサイクロン式集塵機の部分断面図である。   FIG. 1 is a partial cross-sectional view of a conventional multicyclonic dust collector.

従来のマルチサイクロン式集塵機は、図１に示すようにダストを含む排ガスは、排ガス入り口ダクトの矢印で示す方向から２枚の上下の上部仕切板１及び下部仕切板２で仕切られたガス導入室Ａに送り込まれ、ダストを含む排ガスはガス導入室からケーシング３内に配列したサイクロン外筒４にベーン（案内羽根）５を介して入り込み、ベーンを通過する時に旋回流となってサイクロン外筒内でダストを分離する。分離されたダストはサイクロン外筒４の下部出口から集塵室Ｂに落下して、集塵室に堆積する。一方、ダストを分離された排ガスはサイクロン外筒４を上昇し、サイクロン外筒４内に突出しているサイクロン内筒６の下端入り口からサイクロン内筒６に入り込んで、上部仕切板１を気密に貫通して、上部仕切板にフランジ７止めされているサイクロン内筒６の上端出口から上部仕切板１と天板８とで仕切られた清浄ガス室Ｃに入り、排ガス出口ダクトの矢印の方向に排出される。   As shown in FIG. 1, a conventional multi-cyclone type dust collector has a gas introduction chamber in which exhaust gas containing dust is partitioned by two upper and lower upper partition plates 1 and 2 from the direction indicated by the arrow of the exhaust gas inlet duct. The exhaust gas that is sent to A and contains dust enters the cyclone outer cylinder 4 arranged in the casing 3 from the gas introduction chamber via the vane (guide vane) 5 and turns into a swirl flow when passing through the vane. To separate the dust. The separated dust falls from the lower outlet of the cyclone outer cylinder 4 to the dust collecting chamber B and accumulates in the dust collecting chamber. On the other hand, the exhaust gas from which the dust has been separated ascends the cyclone outer cylinder 4 and enters the cyclone inner cylinder 6 from the lower end entrance of the cyclone inner cylinder 6 protruding into the cyclone outer cylinder 4 and penetrates the upper partition plate 1 in an airtight manner. Then, the gas enters the clean gas chamber C partitioned by the upper partition plate 1 and the top plate 8 from the upper end outlet of the cyclone inner cylinder 6 fixed to the upper partition plate with the flange 7 and is discharged in the direction of the arrow of the exhaust gas outlet duct. Is done.

このようなサイクロン式集塵機においては、ガス導入室に導入された排ガスが所定の圧力でサイクロン外筒に入り込むことができるように、ガス導入室の入側から後方に向けて断面積（容積）が小さくなるように断面三角形状のガス導入室となるように二つの上下仕切板でガス導入室が形成されている。   In such a cyclone type dust collector, the cross-sectional area (volume) from the entrance side of the gas introduction chamber toward the rear is such that the exhaust gas introduced into the gas introduction chamber can enter the cyclone outer cylinder at a predetermined pressure. The gas introduction chamber is formed by two upper and lower partition plates so that the gas introduction chamber has a triangular cross section so as to be smaller.

ガス導入室中を貫通するように立設して設けられているサイクロン内筒は、ガス導入室に導入される排ガスに晒される。排ガスはダストを含んでいるので、ガス導入室内で排ガスに晒されるサイクロン内筒は、ダストによって摩耗し、特に、排ガス流に面しているサイクロン内筒面は摩耗が激しく、局部的に穴が開いてしまう。   The cyclone inner cylinder provided so as to penetrate through the gas introduction chamber is exposed to the exhaust gas introduced into the gas introduction chamber. Since the exhaust gas contains dust, the cyclone inner cylinder that is exposed to the exhaust gas in the gas introduction chamber is worn by dust, and in particular, the cyclone inner cylinder surface that faces the exhaust gas flow is heavily worn and locally has holes. It will open.

サイクロン内筒が摩耗して穴が開くと、サイクロン内筒を交換することが必要となる。サイクロン内筒の一部に穴が開いただけで新しいサイクロン内筒に交換するのは経済的に不利であると共に、取り換え作業に手間がかかるという問題がある。   When the cyclone inner cylinder is worn out and a hole is opened, it is necessary to replace the cyclone inner cylinder. It is economically disadvantageous to replace a new cyclone inner cylinder simply by opening a hole in a part of the cyclone inner cylinder, and there is a problem that the replacement work is troublesome.

このため、サイクロン内筒の交換サイクルを長くする技術が提案されていて、例えば、サイクロン内筒をその軸心周りに回転可能とし、穴が開く寸前にサイクロン内筒を回転して、摩耗の少ない面を摩耗しやすい面に臨ませるようにしたサイクロン式集塵機の発明が提案されている（例えば、特許文献１及び２参照）。   For this reason, a technique for prolonging the replacement cycle of the cyclone inner cylinder has been proposed. For example, the cyclone inner cylinder can be rotated around its axis, and the cyclone inner cylinder is rotated just before the hole is opened, thereby reducing wear. An invention of a cyclone type dust collector in which the surface faces a surface that is easily worn has been proposed (see, for example, Patent Documents 1 and 2).

しかしながら、サイクロン内筒の交換サイクルを長くしても、サイクロン内筒の交換作業は無くすことはできない。通常、マルチサイクロン式集塵機には約３００〜１，０００本のサイクロン内筒が設けられているので、サイクロン内筒の交換作業は非常に手間がかかることとなる。   However, even if the replacement cycle of the cyclone inner cylinder is lengthened, the replacement operation of the cyclone inner cylinder cannot be eliminated. Usually, since about 300 to 1,000 cyclone inner cylinders are provided in a multi-cyclone type dust collector, the operation of exchanging the cyclone inner cylinders is very troublesome.

サイクロン内筒の交換作業は、傾斜した仕切板に固定され、清浄ガス室内に突出しているサイクロン内筒を清浄ガス室上方に抜き取って、新しい交換用のサイクロン内筒を摩耗した旧サイクロン内筒があった位置に挿入することによって行われる。   To replace the cyclone inner cylinder, the old cyclone inner cylinder, which is fixed to the inclined partition plate, is pulled out above the clean gas chamber and the new cyclone inner cylinder is worn. This is done by inserting it at a certain position.

この交換作業は、作業者が傾斜した上部仕切板に乗って交換作業を行うため、足場が悪く、交換作業の作業性が非常に悪いという問題があった。また、上部仕切板が傾斜していることにより、サイクロン内筒の長さが排ガスの流れ方向で全て異なることから、寸法の異なる予備品（交換用の新しいサイクロン内筒）の種類が多くなり交換に手間を要することとなるという問題もあった。   Since this replacement work is performed by the operator riding on the inclined upper partition plate, there is a problem that the scaffolding is poor and the workability of the replacement work is very bad. In addition, since the length of the cyclone inner cylinder is all different in the exhaust gas flow direction due to the inclination of the upper partition plate, there are more types of spare parts with different dimensions (new cyclone inner cylinder for replacement) and replacement. There is also a problem that it takes time and effort.

特開２００４−３２１９３８号公報JP 2004-321938 A 実開平７−７７５１号公報Japanese Utility Model Publication No. 7-7751

そこで、本発明は、マルチサイクロン式集塵機においてサイクロン内筒の交換作業の際に作業者の作業性を改善し、かつサイクロン内筒の交換用予備品の種類を減らすことにより、予備品の管理を容易にすることができ、また、サイクロン内筒の交換サイクルを長くすることができるマルチサイクロン式集塵機を提供することを課題とするものである。   Therefore, the present invention improves the workability of the operator when replacing the cyclone inner cylinder in the multi-cyclone type dust collector, and reduces the number of spare parts for replacement of the cyclone inner cylinder, thereby managing the spare parts. It is an object of the present invention to provide a multi-cyclone type dust collector that can be easily made and can lengthen the cycle of replacing the cyclone inner cylinder.

本発明者は、上記課題を解決すべく、上部仕切板を水平にすることで、作業者の作業性が改善できることに着目し、上部仕切板の形状を排ガス入側から奥に向かって排ガス導入室の断面積が小さくなるような階段状にして、足場のよい階段状の水平床部分にサイクロン内筒を取り付けることで、サイクロン内筒の交換作業を行うにあたって、上部仕切板へのサイクロン内筒の取り付け作業が容易となり、作業者の作業性が改善でき、かつ、階段状の水平床部分に複数の同一長さのサイクロン内筒を装着することができるので長さの異なる予備品の種類を少なくすることができ、予備品の管理も容易となり、さらに、サイクロン内筒をその中心軸で回転させても容易にサイクロン内筒を上部仕切板に係合させることができるのでサイクロン内筒の交換サイクルを長くすることができることを見出して、本発明を完成した。   In order to solve the above problems, the present inventor has focused on the fact that the workability of the operator can be improved by leveling the upper partition plate, and the shape of the upper partition plate is introduced into the exhaust gas from the exhaust gas inlet side toward the back. In order to replace the cyclone inner cylinder, the cyclone inner cylinder is attached to the upper partition plate by attaching the cyclone inner cylinder to a stepped horizontal floor with good scaffolding so that the cross-sectional area of the chamber is reduced. This makes it easy to install, and can improve the workability of the operator, and it is possible to install a plurality of cyclone inner cylinders of the same length on the stepped horizontal floor part, so the types of spare parts with different lengths can be selected. The number of the cylinders can be reduced, and the spare parts can be easily managed. Furthermore, the cyclone inner cylinder can be easily engaged with the upper partition plate even if the cyclone inner cylinder is rotated about its central axis. We have found that it is possible to prolong the replacement cycle, and have completed the present invention.

本発明の要旨は、以下のとおりである。
（１）上部仕切板及び下部仕切板で仕切られたガス導入室と、該ガス導入室下部に設けられた集塵室、及びガス導入室上部に前記上部仕切板と天板とで仕切られた清浄ガス室を備え、かつ前記ガス導入室の下部仕切板を貫通して集塵室内に垂下するサイクロン外筒、及び前記清浄ガス室から前記ガス導入室を貫通してサイクロン外筒の上部内側に突出しているサイクロン内筒が配設されているマルチサイクロン式集塵機において、前記上部仕切板をガス導入方向から奥に向かってガス導入室の断面積が小さくなるように階段状仕切板としたことを特徴とするマルチサイクロン式集塵機。
（２）前記階段状上部仕切板の下側に該上部仕切板の摩耗を防止する保護板を設置したことを特徴とする上記（１）記載のマルチサイクロン式集塵機。
（３）前記階段状上部仕切板の下側の該階段状仕切板の角部に、角部の摩耗を防止する保護板を被覆したことを特徴とする上記（１）記載のマルチサイクロン式集塵機。
（４）前記階段状上部仕切板の水平部に、水平部長手方向に少なくとも２列の複数のサイクロン内筒を配置したことを特徴とする上記（１）〜（３）のいずれかに記載のマルチサイクロン式集塵機。
（５）前記階段状上部仕切板の水平部に立込みボルト又はスタッドボルトを設け、該上部仕切板を貫通して配置したサイクロン内筒に設けられたフランジを該立込みボルトまたはスタッドボルトに係合したことを特徴とする上記（１）〜（４）のいずれかに記載のマルチサイクロン式集塵機。
（６）前記階段状上部仕切板にフランジを備えた支持管を立設し、該上部仕切板及び該支持管を貫通して配置したサイクロン内筒に設けたフランジを支持管のフランジに係合したことを特徴とする上記（１）〜（４）のいずれかに記載のマルチサイクロン式集塵機。
（７）前記階段状上部仕切板に対するサイクロン内筒の係合を解除すると、該サイクロン内筒がその中心軸で回転可能となっていることを特徴とする上記（１）〜（６）のいずれかに記載のマルチサイクロン式集塵機。 The gist of the present invention is as follows.
(1) The gas introduction chamber partitioned by the upper partition plate and the lower partition plate, the dust collection chamber provided at the lower part of the gas introduction chamber, and the upper partition plate and the top plate at the upper part of the gas introduction chamber A cyclone outer cylinder provided with a clean gas chamber and penetrating into the dust collection chamber through the lower partition plate of the gas introduction chamber, and passing through the gas introduction chamber from the clean gas chamber to the upper inner side of the cyclone outer cylinder In the multi-cyclone type dust collector in which the projecting cyclone inner cylinder is arranged, the upper partition plate is a stepped partition plate so that the cross-sectional area of the gas introduction chamber decreases from the gas introduction direction to the back. A featured multi-cyclone dust collector.
(2) The multicyclonic dust collector according to (1), wherein a protective plate for preventing wear of the upper partition plate is installed below the stepped upper partition plate.
(3) The multi-cyclone dust collector according to (1), wherein a corner plate of the step-like partition plate below the step-like upper partition plate is covered with a protective plate for preventing wear of the corner portion. .
(4) In the horizontal part of the stepped upper partition plate, at least two rows of a plurality of cyclone inner cylinders are arranged in the horizontal part longitudinal direction, according to any one of the above (1) to (3), Multi cyclone type dust collector.
(5) A standing bolt or stud bolt is provided in the horizontal portion of the stepped upper partition plate, and a flange provided in a cyclone inner cylinder disposed through the upper partition plate is associated with the standing bolt or stud bolt. The multi-cyclone type dust collector according to any one of (1) to (4), wherein the dust collectors are combined.
(6) A support pipe provided with a flange is erected on the stepped upper partition plate, and a flange provided on a cyclone inner cylinder disposed through the upper partition plate and the support tube is engaged with the flange of the support tube. The multicyclonic dust collector according to any one of (1) to (4) above, wherein
(7) Any of the above (1) to (6), wherein when the engagement of the cyclone inner cylinder with the stepped upper partition plate is released, the cyclone inner cylinder is rotatable about its central axis Multi-cyclone type dust collector as described in Crab.

マルチサイクロン式集塵機においては、サイクロン内筒の交換作業を行う際には、作業者が上部仕切板の上に立って行うが、従来は上部仕切板が傾斜していたため、足元が不安定となり、作業性が悪かったが、本発明によれば、上部仕切板を階段状にし、階段の水平床部分にサイクロン内筒を係合したため、サイクロン内筒の交換作業者が上部仕切板上に真っ直ぐ立てるようになり、長時間の交換作業でも容易に行えるようになった。また、階段状の上部仕切板の各段に複数個の同一長さのサイクロン内筒を配置することにより、各段でサイクロン内筒の長さを同じにすることが可能となり、交換用予備品の種類を減らすことが可能となる。さらに、本発明では、上部仕切板にサイクロン内筒を回転可能に取り付けることが可能となりサイクロン内筒の交換サイクルを長くすることができるという顕著な効果を奏するものである。   In the multi-cyclone type dust collector, when replacing the cyclone inner cylinder, the worker stands on the upper partition plate, but since the upper partition plate was inclined in the past, the feet became unstable, Although workability was poor, according to the present invention, the upper partition plate was stepped, and the cyclone inner cylinder was engaged with the horizontal floor portion of the staircase, so that the operator who replaces the cyclone inner cylinder stands upright on the upper partition plate As a result, it has become easy to perform long-term replacement work. In addition, by arranging a plurality of cyclone inner cylinders of the same length on each step of the stepped upper partition plate, it becomes possible to make the length of the cyclone inner cylinder the same in each step, and a spare part for replacement It is possible to reduce the number of types. Furthermore, in the present invention, it is possible to attach the cyclone inner cylinder to the upper partition plate in a rotatable manner, and there is a remarkable effect that the replacement cycle of the cyclone inner cylinder can be lengthened.

マルチサイクロン式集塵機は、製鉄工場においてコークス炉や精錬炉から排出される排ガス中の粉塵（ダスト）を分離除去するために使用されている。   Multi-cyclone type dust collectors are used for separating and removing dust in exhaust gas discharged from coke ovens and smelting furnaces in steel mills.

ところが、マルチサイクロン式集塵機は、その構造上の問題から、粉塵を含む排ガスを導入するガス導入室内に立設して設けられている排ガスのサイクロン内筒が、導入する排ガスに晒されるため、排ガス中に含まれる粉塵によって摩耗してしまい穴が開いてしまう。そして、穴が開いてしまうと、集塵効率が極端に悪くなってしまうこととなる。したがって、マルチサイクロン式集塵機では、定期的にサイクロン内筒の交換作業が必要となる。   However, because of the structural problem, the multi-cyclone type dust collector is exposed to the exhaust gas to be introduced because the cyclone inner cylinder of the exhaust gas provided standing in the gas introduction chamber for introducing the exhaust gas containing dust is exposed to the exhaust gas to be introduced. It will be worn out by the dust contained in it and will open a hole. And if a hole opens, dust collection efficiency will deteriorate extremely. Therefore, in the multi-cyclone type dust collector, it is necessary to periodically replace the cyclone inner cylinder.

サイクロン内筒の交換作業は、作業者が上部仕切板の上に立って行うが、従来は仕切板が傾斜しているため、足元が不安定となり作業性が悪かった。しかも、マルチサイクロン式集塵機では、サイクロン内筒（集塵管）は小型の集塵機で約３００本、大型の集塵機では約１０００本設置されているから、長時間の交換作業が必要となる。   The replacement work of the cyclone inner cylinder is performed by an operator standing on the upper partition plate. However, since the partition plate is inclined, the feet are unstable and the workability is poor. In addition, in the multi-cyclone type dust collector, about 300 cyclone inner cylinders (dust collection tubes) are installed in a small dust collector and about 1000 in a large dust collector, and therefore a long-time replacement work is required.

そこで、本発明は、マルチサイクロン式集塵機の上部仕切板を水平にし、サイクロン内筒の交換作業者が水平床面に立って作業することを可能にした。しかし、上部仕切板を水平にすると、排ガス導入室では導入された排ガスは、入り口側から個々のサイクロン外筒に入っていくため奥に行くに従い排ガスの容量が減少し、ガス圧が不足し集塵効果を低下させることとなる。このため、ガス導入室は、ガス流量に合わせて奥に向かって通過断面積を減少させねばならない。そこで、本発明は、上部仕切板を水平部分がある階段状にしてガス導入室の奥に向かってガス導入室の断面積を小さくなるようにして、集塵効果の低下を防止するようにした。   Therefore, the present invention makes the upper partition plate of the multi-cyclone type dust collector horizontal so that the operator who replaces the cyclone inner cylinder can work while standing on the horizontal floor. However, when the upper partition plate is leveled, the exhaust gas introduced into the exhaust gas introduction chamber enters the individual cyclone outer cylinder from the inlet side, so the capacity of the exhaust gas decreases as it goes deeper, and the gas pressure becomes insufficient. This will reduce the dust effect. For this reason, the gas introduction chamber must reduce the passage cross-sectional area toward the back according to the gas flow rate. Therefore, in the present invention, the upper partition plate is stepped with a horizontal portion so that the cross-sectional area of the gas introduction chamber decreases toward the back of the gas introduction chamber to prevent the dust collection effect from decreasing. .

以下、図に基づいて本発明のマルチサイクロン式集塵機について説明する。   Hereinafter, the multi-cyclone type dust collector of the present invention will be described with reference to the drawings.

図２は、本発明のマルチサイクロン式集塵機の部分断面図である。   FIG. 2 is a partial cross-sectional view of the multicyclonic dust collector of the present invention.

本発明のマルチサイクロン集塵機は、図２に示すように、階段状上部仕切板９と下部仕切板２とで仕切られたガス導入室Ａと、ガス導入室Ａ下部に設けられている分離されたダストが堆積する集塵室Ｂと、ガス導入室Ａ上部の除塵された清浄ガスが出て行く清浄ガス室Ｃの３つに仕切られた構造からなっている。   As shown in FIG. 2, the multi-cyclone dust collector of the present invention is separated into a gas introduction chamber A partitioned by a stepped upper partition plate 9 and a lower partition plate 2 and a gas introduction chamber A lower portion. It has a structure partitioned into three: a dust collection chamber B in which dust accumulates, and a clean gas chamber C in which the dust-cleaned clean gas in the upper part of the gas introduction chamber A exits.

ダストを含む排ガスは、右側の矢印で示すガス入口ダクト方向から、上下の階段状上部仕切板９及び下部仕切板２で仕切られたガス導入室Ａに送り込まれ、ダストを含む排ガスは、導入室Ａ下部のケーシング３内に配設したサイクロン外筒４に、ガス導入室入側から順次ベーン（案内羽根）５を介して入り込み、ベーン５を通過する際に旋回流となってサイクロン外筒４内で遠心力により比重の大きなダストを分離する。分離したダストはサイクロン外筒４の下部出口から集塵室Ｃに落下し、集塵室内に堆積する。ガス導入室Ａを区画するための上部仕切板９は、ガス導入室の奥側に向かってガス導入室の断面積が小さくなるように階段状に低くなっている。   The exhaust gas containing dust is sent from the gas inlet duct direction indicated by the arrow on the right side to the gas introduction chamber A partitioned by the upper and lower stepped upper partition plate 9 and the lower partition plate 2, and the exhaust gas containing dust is introduced into the introduction chamber. The cyclone outer cylinder 4 disposed in the casing 3 at the lower part A enters the gas introduction chamber sequentially from the inlet side via the vanes (guide vanes) 5 and turns into a swirl flow when passing through the vanes 5. The dust with large specific gravity is separated by centrifugal force. The separated dust falls into the dust collecting chamber C from the lower outlet of the cyclone outer cylinder 4 and accumulates in the dust collecting chamber. The upper partition plate 9 for partitioning the gas introduction chamber A is lowered stepwise so that the cross-sectional area of the gas introduction chamber decreases toward the back side of the gas introduction chamber.

ガス導入室に入ったガスは、ガス導入室Ａ下部に配設した複数のサイクロン外筒４に入り側から順次入り込むため、ガス量はガス導入室の奥に行くに従って減少する。ガス流量の減少に対応して、ガス導入室のガス通過断面積（ガス導入室の容量）を減少させることが必要とされる。ガス流量の減少に対応した形状のガス導入室としなければ、ガスが効率よく全てのサイクロン外筒に入っていかなくなり、各サイクロン内において必要な排ガス旋回流速が得られなくなって集塵効率が悪くなる。このため、上部仕切体は、階段状に形成しているのである。サイクロン外筒４でダストを分離除去された清浄ガスは、サイクロン外筒の上部内側に突出し、ガス導入室および上部仕切板を貫通して立設して設けられているサイクロン内筒６（ガス出口管）に入り、サイクロン内筒６を通じて、天板８と階段状上部仕切板９とで区画される清浄ガス室Ｃ内に上昇する。   Since the gas that has entered the gas introduction chamber sequentially enters the plurality of cyclone outer cylinders 4 disposed in the lower part of the gas introduction chamber A from the side, the amount of gas decreases as it goes deeper into the gas introduction chamber. Corresponding to the decrease in the gas flow rate, it is necessary to reduce the gas passage cross-sectional area of the gas introduction chamber (the capacity of the gas introduction chamber). Unless the gas introduction chamber has a shape corresponding to the decrease in the gas flow rate, the gas will not enter the cyclone outer cylinders efficiently, and the exhaust gas swirling flow velocity required in each cyclone will not be obtained, resulting in poor dust collection efficiency. Become. For this reason, the upper partition is formed in a step shape. The clean gas from which dust has been separated and removed by the cyclone outer cylinder 4 protrudes to the upper inner side of the cyclone outer cylinder, and is installed in a cyclone inner cylinder 6 (gas outlet) provided upright through the gas introduction chamber and the upper partition plate. Tube) and passes through the cyclone inner cylinder 6 and rises into the clean gas chamber C partitioned by the top plate 8 and the stepped upper partition plate 9.

清浄ガス室に入ったガスは、清浄ガス室からガス出側ダクトの左側の矢印に示す方向に排出される。   The gas that has entered the clean gas chamber is discharged from the clean gas chamber in the direction indicated by the arrow on the left side of the gas outlet duct.

このようなマルチサイクロン式集塵機では、サイクロン内筒６がガス導入室Ａを上下に貫通して立設されているため、サイクロン内筒６はガス導入室Ａに入るダストを含む排ガス流に晒されガスアタックを受けることとなる。   In such a multi-cyclone type dust collector, since the cyclone inner cylinder 6 is erected vertically through the gas introduction chamber A, the cyclone inner cylinder 6 is exposed to an exhaust gas flow containing dust entering the gas introduction chamber A. You will receive a gas attack.

ダストを含む排ガス流が衝突するサイクロン内筒表面は、排ガス中のダストによって摩耗し、穴が開いてしまうこととなる。サイクロン内筒に穴が開くと集塵効率が低下するので、穴が開く前にサイクロン内筒を交換する作業を行う。サイクロン内筒の交換作業は、清浄ガス室Ｃの天板８を外して、作業者が階段状上部仕切板９上に入り、サイクロン内筒を上部仕切板に固定しているボルトナットを外した後、重機でサイクロン内筒６を取り出す。また、据付時は逆に重機で吊り上げた交換用の新しいサイクロン内筒を階段状上部仕切板９に差込み、同時に下部仕切板に設けたベーンにも差し込んだ後に、サイクロン内筒に設けたフランジをボルトナット等で上部仕切板９に固定することによって行う。
従来のように作業床となる上部仕切板が、図１に示すように、傾斜していると、作業者がその傾斜している上部仕切板の上に乗ってサイクロン内筒の交換作業をするため、足場が悪く肉体的疲労は激しく、作業性が悪い。 The surface of the cyclone inner cylinder where the exhaust gas flow containing dust collides is worn by dust in the exhaust gas, and a hole is opened. Since dust collection efficiency decreases when a hole is opened in the cyclone inner cylinder, the work of replacing the cyclone inner cylinder is performed before the hole is opened. To replace the cyclone inner cylinder, the top plate 8 of the clean gas chamber C was removed, the operator entered the stepped upper partition plate 9, and the bolts and nuts fixing the cyclone inner cylinder to the upper partition plate were removed. Then, the cyclone inner cylinder 6 is taken out with a heavy machine. When installing, the new cyclone inner cylinder for replacement, which was lifted by heavy equipment, was inserted into the stepped upper partition plate 9 and simultaneously inserted into the vanes provided in the lower partition plate, and then the flange provided in the cyclone inner cylinder was attached. This is performed by fixing the upper partition plate 9 with bolts and nuts or the like.
As shown in FIG. 1, when the upper partition plate as a work floor is inclined as in the prior art, the operator gets on the inclined upper partition plate and replaces the cyclone inner cylinder. For this reason, the scaffolding is poor, the physical fatigue is severe, and the workability is poor.

本発明では、清浄ガス室の床となる上部仕切板の形状を水平面がある階段状の形状にしたため、サイクロン内筒の交換作業者は、階段状上部仕切板９の水平床面に真っ直ぐに立つことが可能となり、長時間の交換作業でも容易に行えるので作業性が向上する。   In the present invention, since the shape of the upper partition plate serving as the floor of the clean gas chamber has a stepped shape with a horizontal plane, the replacement operator of the cyclone inner cylinder stands straight on the horizontal floor surface of the stepped upper partition plate 9. This makes it possible to easily perform replacement work for a long time, thus improving workability.

また、階段状仕切板の１つ階段の水平床面内には、長手方向に少なくとも２列に複数のサイクロン内筒が配設されていて、この水平床面に配設するサイクロン内筒の長さを全て同じ長さとすることが可能となる。１階段に配列するサイクロン内筒列としては、階段の高さを考慮すると少なくとも２列、多くしても５列とすることが好ましい。そして、全体の複数サイクロンの配置としては、碁盤目状や千鳥状とすることができる。   Further, a plurality of cyclone inner cylinders are arranged in at least two rows in the longitudinal direction within the horizontal floor surface of one staircase of the stepped partition plate, and the length of the cyclone inner cylinders arranged on the horizontal floor surface. It is possible to make all the lengths the same. The cyclone inner cylinder rows arranged in one staircase are preferably at least 2 rows and at most 5 rows in consideration of the height of the stairs. And as arrangement | positioning of the whole several cyclone, it can be set as a grid shape or a zigzag shape.

これに対して従来のように床が傾斜していると、１列でしか同じ長さのサイクロン内筒を配列することができない。   On the other hand, if the floor is inclined as in the prior art, cyclone inner cylinders having the same length can be arranged in only one row.

そして、マルチサイクロン式集塵機では、サイクロン内筒は、小型の集塵機で約３００本、大型の集塵機で約１，０００本あるので、交換のために準備する予備のサイクロン内筒の管理は容易でない。本発明によれば、サイクロン内筒の長さを１段階ごとに同じ長さの予備のサイクロン内筒として管理を行うことができ、従来よりも予備品の種類を減らすことができるので、予備品の管理が容易となる。   In the multi-cyclone type dust collector, since there are about 300 cyclone inner cylinders for a small dust collector and about 1,000 for a large dust collector, it is not easy to manage a spare cyclone inner cylinder prepared for replacement. According to the present invention, the length of the cyclone inner cylinder can be managed as a spare cyclone inner cylinder having the same length for each stage, and the number of types of spare parts can be reduced as compared with the prior art. Management becomes easier.

清浄ガス室Ｃとガス導入室Ａとを仕切る上部仕切板を階段状としたことによって、上部仕切板に垂直部および角部が生じ、これらの部分のガス導入室側はダストを含む排ガスに晒され、ガスアタックを受けることとなり、特に、仕切板の階段状の角部及び垂直部は排ガス中のダストによって摩耗を受けることとなる。   By forming the upper partition plate that separates the clean gas chamber C and the gas introduction chamber A into a stepped shape, vertical portions and corner portions are generated in the upper partition plate, and the gas introduction chamber side of these portions is exposed to exhaust gas containing dust. Thus, the gas attack is received, and in particular, the stepped corners and the vertical part of the partition plate are worn by dust in the exhaust gas.

したがって、特に摩耗が激しい階段状上部仕切板の角部の摩耗を防止するため、図２に示すように、角部だけを耐摩耗性保護板１０で被覆することが好ましい。即ち、耐摩耗性保護板の形状を階段の角部と同一形状の断面Ｌ字型形状として、この耐摩耗性保護板で階段の角部を覆うようにすればよい。   Therefore, in order to prevent wear of the corner portion of the stepped upper partition plate that is particularly worn, it is preferable to cover only the corner portion with the wear-resistant protective plate 10 as shown in FIG. That is, the shape of the wear-resistant protective plate may be an L-shaped section having the same shape as the corner of the staircase, and the corner of the staircase may be covered with this wear-resistant protective plate.

また、階段状仕切体の角部及び垂直部の摩耗を防止するためには、図３に示すように、階段状仕切体９のガス導入室Ａ側の全面を覆うように耐摩耗性保護板１１を設置しても良い。   Further, in order to prevent wear of the corners and vertical parts of the step-like partition, as shown in FIG. 3, the wear-resistant protective plate covers the entire surface of the step-like partition 9 on the gas introduction chamber A side. 11 may be installed.

耐摩耗性保護板としては、上部仕切板のようにその上に作業者が乗るものではないから、それほどの強度は必要としないが、排ガス中のダストの摩耗に耐える耐摩耗性の鋼板や鋼板表面をアルミナ系のセラミックス等の耐摩耗性材料で被覆した鋼板を用いることができる。   As an abrasion-resistant protective plate, an operator does not ride on it like the upper partition plate, so it does not require that much strength, but it is a wear-resistant steel plate or steel plate that can withstand the wear of dust in the exhaust gas. A steel plate whose surface is coated with an abrasion-resistant material such as alumina-based ceramics can be used.

次いで、階段状上部仕切板の水平床部へのサイクロン内筒の取り付け構造について説明する。   Next, a structure for attaching the cyclone inner cylinder to the horizontal floor of the stepped upper partition plate will be described.

図４は、立込みボルトまたはスタットボルト１２を階段状上部仕切板の水平床１３に立設して、サイクロン内筒６を上部仕切板に係合させた例を示す図である。   FIG. 4 is a view showing an example in which the standing bolt or the stat bolt 12 is erected on the horizontal floor 13 of the stepped upper partition plate and the cyclone inner cylinder 6 is engaged with the upper partition plate.

図４に示すように、立込みボルトまたはスタッドボルト１２を溶接等により階段状上部仕切板の水平床１３の上面（清浄ガス室側）に固定して立設する。一方、階段状上部仕切板の水平床１３を貫通して突出するサイクロン内筒６上部にはフランジ７が設けられている。このフランジ７と階段状上部仕切板の水平床１３の間に密封のためのシールパッキン１４を介在させ、フランジ７を立込みボルトまたはスタットボルト１２に係合させてナットでネジ止めする。   As shown in FIG. 4, the upright bolt or the stud bolt 12 is fixedly installed on the upper surface (clean gas chamber side) of the horizontal floor 13 of the stepped upper partition plate by welding or the like. On the other hand, a flange 7 is provided on the upper part of the cyclone inner cylinder 6 protruding through the horizontal floor 13 of the stepped upper partition plate. A seal packing 14 for sealing is interposed between the flange 7 and the horizontal floor 13 of the stepped upper partition plate, and the flange 7 is engaged with a standing bolt or a stat bolt 12 and screwed with a nut.

この図４に示す例では、上部仕切板の階段部である水平床面にサイクロン内筒のフランジが平行に係合されるので、係合を解除すれば、サイクロン内筒６をその中心軸で回転させた後、再度、フランジを水平床面に係合させることができる。したがって、サイクロン内筒が排ガス中のダストにより偏摩耗されても、回転によって排ガス流によって摩耗を受けていないサイクロン内筒面を排ガス流により摩耗を受ける面に変えることができるので、サイクロン内筒の使用期間を延長でき、サイクロン内筒の交換サイクルを延長させることができる。サイクロン内筒の中心軸での回転角度としては、例えば、９０度、１２０度、或は１８０度とすることができる。   In the example shown in FIG. 4, the flange of the cyclone inner cylinder is engaged in parallel with the horizontal floor surface which is the stepped portion of the upper partition plate. After rotation, the flange can again be engaged with the horizontal floor. Therefore, even if the cyclone inner cylinder is unevenly worn by dust in the exhaust gas, the cyclone inner cylinder surface that is not subjected to wear by the exhaust gas flow by rotation can be changed to a surface that is worn by the exhaust gas flow. The period of use can be extended, and the replacement cycle of the cyclone inner cylinder can be extended. The rotation angle about the central axis of the cyclone inner cylinder can be, for example, 90 degrees, 120 degrees, or 180 degrees.

従来の図１に示すように、傾斜した上部仕切板にサイクロン内筒のフランジを傾斜に合わせてフランジ止めした場合には、サイクロン内筒をその中心軸で回転させると、サイクロン内筒の傾斜したフランジが仕切板の傾斜面と一致しなくなって（逆傾斜面となる）、サイクロン内筒のフランジを傾斜した仕切板上で係合させることはできない。   As shown in FIG. 1 of the related art, when the flange of the cyclone inner cylinder is fixed to the inclined upper partition plate in accordance with the inclination, when the cyclone inner cylinder is rotated around its central axis, the cyclone inner cylinder is inclined. Since the flange does not coincide with the inclined surface of the partition plate (becomes a reverse inclined surface), the flange of the cyclone inner cylinder cannot be engaged on the inclined partition plate.

また、階段状上部仕切板の水平床部１３へのサイクロン内筒６の取り付け構造の他の例としては、図５に示すように、フランジ１５を備えた支持管１６を階段状上部仕切板の水平床部１３に溶接等により固定して立設する。   As another example of the structure for attaching the cyclone inner cylinder 6 to the horizontal floor 13 of the stepped upper partition plate, as shown in FIG. 5, a support tube 16 provided with a flange 15 is connected to the stepped upper partition plate. It stands upright by being fixed to the horizontal floor 13 by welding or the like.

一方、階段状上部仕切板の水平床部１３および支持管１６を貫通して、支持管１６上に突出するサイクロン内筒６にはフランジ１４が設けられている。この両者のフランジ間に密封のためのシールパッキン１７を介在させて、両フランジ１４、１５をボルトナット１８でネジ止めする。   On the other hand, a flange 14 is provided in the cyclone inner cylinder 6 that passes through the horizontal floor portion 13 and the support tube 16 of the stepped upper partition plate and protrudes onto the support tube 16. A seal packing 17 for sealing is interposed between the both flanges, and both flanges 14 and 15 are screwed with bolts and nuts 18.

この図５に示す例では、サイクロン内筒６のフランジ１４を水平に設けて、支持管１６に設けた水平なフランジ１５に係合されているので、係合を解除して、サイクロン内筒６をその中心軸で回転させると、再度サイクロン内筒６を支持管１６にフランジ止めすることができる。したがって、この例もサイクロン内筒の交換サイクルを延長させることができる。   In the example shown in FIG. 5, since the flange 14 of the cyclone inner cylinder 6 is provided horizontally and engaged with the horizontal flange 15 provided on the support pipe 16, the engagement is released and the cyclone inner cylinder 6 is released. Is rotated around its central axis, the cyclone inner cylinder 6 can be flanged to the support tube 16 again. Therefore, this example can also extend the replacement cycle of the cyclone inner cylinder.

また、これらの階段状上部仕切板の水平床部へのサイクロン内筒の係合手段以外にも、楔を用いて係合させること等も出来る。   Further, in addition to the engaging means of the cyclone inner cylinder to the horizontal floor portion of these stepped upper partition plates, it is possible to engage them using a wedge.

以上、マルチサイクロン式集塵機について、コークス炉や精錬炉から排出されるダストを含んだ排ガス中のダストを分離除去する場合について説明したが、これらの排ガス以外にも焼却炉等の粉塵を含む排ガスやセメント工場での粉塵を含むガスから粉塵を分離除去する場合等にも本発明のマルチサイクロン式集塵機は使用することができる。   As described above, the case of separating and removing dust in the exhaust gas containing dust discharged from the coke oven and the refining furnace has been described for the multi-cyclone type dust collector, but in addition to these exhaust gases, the exhaust gas containing dust such as incinerators and the like The multicyclonic dust collector of the present invention can also be used when dust is separated and removed from gas containing dust at a cement factory.

従来のマルチサイクロン式集塵機の部分断面図である。It is a fragmentary sectional view of the conventional multi cyclone type dust collector. 本発明のマルチサイクロン式集塵機の部分断面図である。It is a fragmentary sectional view of the multi cyclone type dust collector of the present invention. 本発明のマルチサイクロン式集塵機の部分断面図である。It is a fragmentary sectional view of the multi cyclone type dust collector of the present invention. 階段状上部仕切板の水平床部に立設した立込みボルトまたはスタットボルトを用いて、サイクロン内筒を階段状上部仕切板に係合させた例を示す図である。It is a figure which shows the example which engaged the cyclone inner cylinder with the step-like upper partition plate using the standing bolt or the stat bolt erected on the horizontal floor part of the step-like upper partition plate. 階段状上部仕切板の水平床部に立設した支持管に、サイクロン内筒をフランジ止めした例を示す図である。It is a figure which shows the example which flanged the cyclone inner cylinder to the support pipe standingly arranged in the horizontal floor part of the stair-like upper partition plate.

符号の説明Explanation of symbols

１ 上部仕切板
２ 下部仕切板
３ ケーシング
４ サイクロン外筒
５ ベーン（案内羽根）
６ サイクロン内筒
７ フランジ
８ 天板
９ 階段状上部仕切板
１０ Ｌ字型耐磨耗性保護板
１１ 耐磨耗性保護板
１２ 立込みボルトまたはスタットボルト
１３ 階段状上部仕切板の水平床
１４ フランジ
１５ フランジ
１６ 支持管
１７ シールパッキン
１８ ボルトナット
Ａ ガス導入室
Ｂ 集塵室
Ｃ 清浄ガス室 1 Upper partition plate 2 Lower partition plate 3 Casing 4 Cyclone outer cylinder 5 Vane (guide vane)
6 Cyclone inner cylinder 7 Flange 8 Top plate 9 Step-like upper partition plate 10 L-shaped wear-resistant protective plate 11 Wear-resistant protective plate 12 Standing bolt or stat bolt 13 Horizontal floor 14 of step-like upper partition plate Flange 15 Flange 16 Support pipe 17 Seal packing 18 Bolt nut A Gas introduction chamber B Dust collection chamber C Clean gas chamber

Claims (7)

上部仕切板及び下部仕切板で仕切られたガス導入室と、該ガス導入室下部に設けられた集塵室、及びガス導入室上部に前記上部仕切板と天板とで仕切られた清浄ガス室を備え、かつ前記ガス導入室の下部仕切板を貫通して集塵室内に垂下するサイクロン外筒、及び前記清浄ガス室から前記ガス導入室を貫通してサイクロン外筒の上部内側に突出しているサイクロン内筒が配設されているマルチサイクロン式集塵機において、前記上部仕切板をガス導入方向から奥に向かってガス導入室の断面積が小さくなるように階段状仕切板としたことを特徴とするマルチサイクロン式集塵機。   A gas introduction chamber partitioned by an upper partition plate and a lower partition plate, a dust collection chamber provided at the lower portion of the gas introduction chamber, and a clean gas chamber partitioned by the upper partition plate and the top plate at the upper portion of the gas introduction chamber And a cyclone outer cylinder that passes through the lower partition plate of the gas introduction chamber and hangs down into the dust collection chamber, and projects from the clean gas chamber through the gas introduction chamber to the upper inside of the cyclone outer cylinder. In the multi-cyclone type dust collector in which the cyclone inner cylinder is disposed, the upper partition plate is a stepped partition plate so that a cross-sectional area of the gas introduction chamber decreases from the gas introduction direction to the back. Multi cyclone type dust collector. 前記階段状上部仕切板の下側に該階段状上部仕切板の摩耗を防止する保護板を設置したことを特徴とする請求項１記載のマルチサイクロン式集塵機。   The multi-cyclone type dust collector according to claim 1, wherein a protective plate for preventing wear of the stepped upper partition plate is installed below the stepped upper partition plate. 前記階段状上部仕切板の下側の該階段状仕切板の角部に、角部の摩耗を防止する保護板を被覆したことを特徴とする請求項１記載のマルチサイクロン式集塵機。 The multi-cyclone type dust collector according to claim 1, wherein a protective plate for preventing wear of the corner portion is coated on a corner portion of the stepped partition plate below the stepped upper partition plate. 前記階段状上部仕切板の水平部に、水平部長手方向に少なくとも２列の複数のサイクロン内筒を配置したことを特徴とする請求項１〜３のいずれかに記載のマルチサイクロン式集塵機。 The multi-cyclone dust collector according to any one of claims 1 to 3, wherein at least two rows of a plurality of cyclone inner cylinders are arranged in a horizontal portion of the stepped upper partition plate in a longitudinal direction of the horizontal portion. 前記階段状上部仕切板の水平部に立込みボルト又はスタッドボルトを設け、該上部仕切板を貫通して配置したサイクロン内筒に設けられたフランジを該立込みボルトまたはスタッドボルトに係合したことを特徴とする請求項１〜４のいずれかに記載のマルチサイクロン式集塵機。   A standing bolt or stud bolt is provided in the horizontal portion of the stepped upper partition plate, and a flange provided in a cyclone inner cylinder disposed through the upper partition plate is engaged with the standing bolt or stud bolt. The multi-cyclone type dust collector according to any one of claims 1 to 4. 前記階段状上部仕切板にフランジを備えた支持管を立設し、該上部仕切板及び該支持管を貫通して配置したサイクロン内筒に設けたフランジを支持管のフランジに係合したことを特徴とする請求項１〜４のいずれかに記載のマルチサイクロン式集塵機。   A support pipe provided with a flange is erected on the stepped upper partition plate, and the flange provided on the inner cylinder of the cyclone disposed through the upper partition plate and the support tube is engaged with the flange of the support tube. The multi-cyclone type dust collector according to any one of claims 1 to 4. 前記階段状上部仕切板に対するサイクロン内筒の係合を解除すると、該サイクロン内筒がその中心軸で回転可能となっていることを特徴とする請求項１〜６のいずれかに記載のマルチサイクロン式集塵機。   The multi-cyclone according to any one of claims 1 to 6, wherein when the cyclone inner cylinder is disengaged from the stepped upper partition plate, the cyclone inner cylinder is rotatable about its central axis. Type dust collector.
JP2006262904A 2006-09-27 2006-09-27 Multi cyclone type dust collector Active JP4792360B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006262904A JP4792360B2 (en) 2006-09-27 2006-09-27 Multi cyclone type dust collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006262904A JP4792360B2 (en) 2006-09-27 2006-09-27 Multi cyclone type dust collector

Publications (2)

Publication Number Publication Date
JP2008080244A true JP2008080244A (en) 2008-04-10
JP4792360B2 JP4792360B2 (en) 2011-10-12

Family

ID=39351633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006262904A Active JP4792360B2 (en) 2006-09-27 2006-09-27 Multi cyclone type dust collector

Country Status (1)

Country Link
JP (1) JP4792360B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012172872A1 (en) * 2011-06-14 2012-12-20 スチールプランテック株式会社 Axial flow multi-cyclone dust collector
CN109276955A (en) * 2018-09-30 2019-01-29 胜帮科技股份有限公司 A kind of method of coal dust feed bin and fine coal gas solid separation
CN109351496A (en) * 2018-11-01 2019-02-19 广东保绿泰华生物能源有限公司 A kind of multicyclone dust collector
KR20220124083A (en) * 2020-01-21 2022-09-13 대런 리차드 비비 Cyclone Air Filtration Equipment
KR102501868B1 (en) * 2021-10-08 2023-02-23 주식회사 티지와이 Impinger system for metal smelting furnace constituted to improve particle filtering effect

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51150580A (en) * 1975-06-19 1976-12-24 Takeo Yamazaki Manufacture of flexible polystyrene foam
JPS56137754A (en) * 1980-03-28 1981-10-27 Fujitsu Ltd Control system of information transferring
JPS57145555A (en) * 1981-03-04 1982-09-08 Matsushita Electric Ind Co Ltd Manufacture of coreless armature
JP2004321938A (en) * 2003-04-24 2004-11-18 Kurimoto Ltd Cyclone type separator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51150580A (en) * 1975-06-19 1976-12-24 Takeo Yamazaki Manufacture of flexible polystyrene foam
JPS56137754A (en) * 1980-03-28 1981-10-27 Fujitsu Ltd Control system of information transferring
JPS57145555A (en) * 1981-03-04 1982-09-08 Matsushita Electric Ind Co Ltd Manufacture of coreless armature
JP2004321938A (en) * 2003-04-24 2004-11-18 Kurimoto Ltd Cyclone type separator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012172872A1 (en) * 2011-06-14 2012-12-20 スチールプランテック株式会社 Axial flow multi-cyclone dust collector
CN109276955A (en) * 2018-09-30 2019-01-29 胜帮科技股份有限公司 A kind of method of coal dust feed bin and fine coal gas solid separation
CN109351496A (en) * 2018-11-01 2019-02-19 广东保绿泰华生物能源有限公司 A kind of multicyclone dust collector
KR20220124083A (en) * 2020-01-21 2022-09-13 대런 리차드 비비 Cyclone Air Filtration Equipment
KR102501241B1 (en) 2020-01-21 2023-02-17 대런 리차드 비비 cyclone air filtration equipment
KR102501868B1 (en) * 2021-10-08 2023-02-23 주식회사 티지와이 Impinger system for metal smelting furnace constituted to improve particle filtering effect

Also Published As

Publication number Publication date
JP4792360B2 (en) 2011-10-12

Similar Documents

Publication Publication Date Title
JP4792360B2 (en) Multi cyclone type dust collector
CN1434740A (en) Method and apparatus for separating particles from hot gases
CN102824967A (en) Axial flow multi-cyclone dust collector
CN101761908B (en) Exhaust-heat boiler
CN201394515Y (en) Modular multiclone dust collector
CN203281151U (en) Coal gasification pulverized coal bag type collector capable of replacing wear-resisting flow guiding plate
CN107401749A (en) Compound source of the gas burner, waste gas combustion furnace and exhaust treatment system
US8261677B2 (en) Gasification boiler for solid fuels, in particular for bales of straw, with optimised exhaust gas values
CN103884198A (en) Device and method for dust collection and discharge of sintering flue gas
CN210833098U (en) Radiation chamber ash bin
JP4137676B2 (en) Coke dry fire extinguishing equipment gas outlet flue structure
CN101259453A (en) High-temperature cyclone dust extractor
CN209802106U (en) Sealing device of circular cooler
CN210252733U (en) High-efficiency multi-pipe cyclone separator
JP5169034B2 (en) Coke dry fire extinguishing equipment construction and repair method
CN201285059Y (en) Ash hopper
CN201285025Y (en) Exhaust-heat boiler
CN218583140U (en) Hidden hood type multi-step circulating fluidized bed surface structure
CN203772036U (en) Sintering flue gas dust collecting and discharging device
CN110487082B (en) Ash bin of radiation chamber
CN201192663Y (en) High temperature cyclone dust extractor
CN217635700U (en) Dust and smoke removing device of vertical flue gas recirculation system of boiler of secondary reheating unit
WO2020009137A1 (en) Coke dry quenching equipment
CN215962674U (en) Hydrothermal type filter equipment suitable for oily easily glues sticky tail gas multilevel processing
CN213686879U (en) Stifled grey structure is prevented to boiler denitration reactor

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080731

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110117

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110125

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110324

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110419

R155 Notification before disposition of declining of application

Free format text: JAPANESE INTERMEDIATE CODE: R155

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110725

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140729

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4792360

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140729

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140729

Year of fee payment: 3

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140729

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250