JP5915351B2

JP5915351B2 - Dust remover

Info

Publication number: JP5915351B2
Application number: JP2012095855A
Authority: JP
Inventors: 岡田　邦明; 邦明岡田; 雅朗正司
Original assignee: JFE Steel Corp
Current assignee: JFE Steel Corp
Priority date: 2012-04-19
Filing date: 2012-04-19
Publication date: 2016-05-11
Anticipated expiration: 2032-04-19
Also published as: JP2013220417A

Description

本発明は、空気等の気体中のダストを除去するための慣性力集塵方式の除塵装置に関する。 The present invention relates to an inertial dust collection type dust removing device for removing dust in a gas such as air.

気体中のダストを除去する除塵装置の１つとして、種々の原理に基づくフィルタが利用されている。例えば、濾紙を使用してユニット化したものもあるが、このタイプでは定期的な濾紙の清掃、交換が必要であり手間がかかり不経済である。
これに対して、気体とダストの密度の差を利用した慣性力集塵方式の除塵装置が従来より知られている。例えば、非特許文献１に紹介されている除塵装置として、図６に示す慣性力集塵方式の除塵装置がある。図６は、従来の慣性力集塵方式の除塵装置の一例を示し、（Ａ）は概略正面図、（Ｂ）は概略平面図である。 Filters based on various principles are used as one of dust removing devices for removing dust in gas. For example, some filter papers are unitized, but this type requires regular cleaning and replacement of the filter paper, which is troublesome and uneconomical.
On the other hand, an inertia force dust collection type dust remover using a difference in density between gas and dust is conventionally known. For example, as a dust removing device introduced in Non-Patent Document 1, there is an inertia force dust collecting type dust removing device shown in FIG. FIGS. 6A and 6B show an example of a conventional inertia force dust collection type dust removing device, where FIG. 6A is a schematic front view, and FIG. 6B is a schematic plan view.

図６に示す除塵装置１０１は、含塵ガス（ダストを含んだ気体）が入口から入り込む管状の装置本体１０２を備えている。装置本体１０２の入口から出口に向かう途中には、図６（Ａ）,（Ｂ）に示すように、含塵ガスからダストを除去する慣性力集塵方式の除塵板群１０４が配設されている。
この除塵板群１０４は、図６（Ａ）,（Ｂ）に示すように、複数の除塵板１０４ａを含塵ガスの流れ方向に沿って多段（図６（Ｂ）にあっては４段）に配置してなる。各段の除塵板１０４ａは、装置本体１０２に流れてくる含塵ガスを遮るように、装置本体１０２の入口の全投影面積を覆うように複数配置されている。各段の複数の除塵板１０４ａは、含塵ガスの流れ方向に沿って千鳥配置されている。各除塵板１０４ａは、短冊状の等辺山形鋼で形成される。 A dust removing device 101 shown in FIG. 6 includes a tubular device main body 102 into which dust-containing gas (gas containing dust) enters from an inlet. On the way from the inlet to the outlet of the apparatus main body 102, as shown in FIGS. 6A and 6B, an inertia force dust collection type dust removing plate group 104 for removing dust from the dust-containing gas is disposed. Yes.
As shown in FIGS. 6 (A) and 6 (B), the dust removing plate group 104 includes a plurality of dust removing plates 104a along the flow direction of the dust-containing gas (four steps in FIG. 6 (B)). It is arranged. A plurality of dust removing plates 104 a at each stage are arranged so as to cover the entire projected area of the inlet of the apparatus main body 102 so as to block the dust-containing gas flowing into the apparatus main body 102. The plurality of dust removing plates 104a at each stage are staggered along the flow direction of the dust-containing gas. Each dust removing plate 104a is formed of strip-shaped equilateral angle steel.

また、装置本体１０２の除塵板群１０４を配設した部分の下方には、除塵板群１０４で捕集されたダスト１０５が堆積するダスト堆積室１０５が装置本体１０２の内部と連通するように形成されている。
そして、装置本体１０２内に入り込んだ含塵ガスは、除塵板群１０４を通過し、除塵板群１０４で含塵ガス中のダスト１０５が除去されて装置本体１０２から清浄ガスが排出されるようになっている。 Further, a dust accumulation chamber 105 in which dust 105 collected by the dust removing plate group 104 accumulates is formed below the portion of the device main body 102 where the dust removing plate group 104 is disposed so as to communicate with the inside of the device main body 102. Has been.
The dust-containing gas that has entered the apparatus main body 102 passes through the dust-removing plate group 104, and the dust 105 in the dust-containing gas is removed by the dust-removing plate group 104 so that clean gas is discharged from the apparatus main body 102. It has become.

また、従来の慣性力集塵方式の除塵装置として、例えば、図７に示すものも知られている（特許文献１参照）。図７は、従来の慣性力集塵方式の除塵装置の他の例を示す概略説明図である。
図７に示す除塵装置２０１において、含塵ガスが入り込む装置本体２０２内に含塵ガスからダストを除去する慣性力集塵方式の除塵板群２０８が配設されている。図７において、含塵ガスは、装置本体２０２内に下方から入り込み、除塵板群２０８を通過し、除塵板群２０８で含塵ガス中のダストが除去されて装置本体２０２から清浄ガスが上方に向けて排出されるようになっている。 Further, as a conventional inertial force dust collecting type dust removing device, for example, the one shown in FIG. 7 is also known (see Patent Document 1). FIG. 7 is a schematic explanatory view showing another example of a conventional inertial dust collection type dust remover.
In the dust removing apparatus 201 shown in FIG. 7, an inertia force collecting type dust removing plate group 208 for removing dust from the dust-containing gas is disposed in the apparatus main body 202 into which the dust-containing gas enters. In FIG. 7, the dust-containing gas enters the apparatus main body 202 from below, passes through the dust-removing plate group 208, dust in the dust-containing gas is removed by the dust-removing plate group 208, and the clean gas moves upward from the apparatus main body 202. It comes to be discharged towards.

ここで、除塵板群２０８は、それぞれ開口部２０３ａを有する複数の中空部材２０３を含塵ガスの流れ方向に沿って多段（図７にあっては３段）に配置してなる。各段の中空部材２０３は、装置本体２０２に流れてくる含塵ガスを遮るように、装置本体２０２の幅方向に複数配置され、含塵ガスの流れ方向に沿って千鳥配置されている。
そして、隣接する２つの中空部材２０３の側壁の外面２０４により含塵ガスの風路を狭める絞り部２０６が形成されると共に、隣接する２つの中空部材２０３の側壁の絞り部２０６より下流側の側面２０５と、次の段の中空部材２０３の側壁の絞り部２０６より上流側の側面２０４とにより、絞り部２０６における含塵ガスの進行方向に対して屈曲している屈曲風路２０７が形成されている。また、絞り部２０６における含塵ガスの進行方向の延長線上に、次の段の中空部材２０３の開口部２０３ａが設置されている。 Here, the dust removing plate group 208 includes a plurality of hollow members 203 each having an opening 203a arranged in multiple stages (three stages in FIG. 7) along the flow direction of the dust-containing gas. A plurality of the hollow members 203 at each stage are arranged in the width direction of the apparatus main body 202 so as to block the dust-containing gas flowing into the apparatus main body 202, and are arranged in a staggered manner along the flow direction of the dust-containing gas.
And the narrow part 206 which narrows the air path of dust-containing gas by the outer surface 204 of the side wall of two adjacent hollow members 203 is formed, and the side surface downstream from the narrow part 206 of the side walls of two adjacent hollow members 203 205 and the side surface 204 upstream of the throttled portion 206 on the side wall of the hollow member 203 at the next stage form a bent air passage 207 that is bent with respect to the traveling direction of the dust-containing gas in the throttled portion 206. Yes. In addition, an opening 203a of the hollow member 203 at the next stage is installed on an extension line in the traveling direction of the dust-containing gas in the throttle portion 206.

このように構成された除塵装置２０１によれば、除塵板群２０８の中に絞り部２０６が形成されているので、ダストの飛行方向が揃うと同時に慣性力が増加し、含塵ガスからのダストの分離が促進される。また、絞り部２０６における含塵ガスの進行方向の延長線上に、次の段の中空部材２０３の開口部２０３ａが設置されているので、ダストを捕集し易く、ダストの再飛散が防止されダストの除塵率が向上する。 According to the dust removing device 201 configured as described above, the throttle part 206 is formed in the dust removing plate group 208, so that the inertial force increases at the same time that the flying direction of the dust is aligned, and the dust from the dust-containing gas is increased. Separation is promoted. Further, since the opening 203a of the hollow member 203 at the next stage is installed on the extended line in the traveling direction of the dust-containing gas in the throttle portion 206, it is easy to collect dust and prevent re-scattering of dust. The dust removal rate is improved.

更に、従来の慣性力集塵方式の除塵装置として、例えば、図８に示すものも知られている（特許文献２参照）。図８は、従来の慣性力集塵方式の除塵装置のもう一つ他の例を示す概略説明図である。
図８に示す除塵装置３０１は、排ガスが下から上に向かって流される処理室３０２を備えている。そして、この除塵装置３０１には、有害物質処理機能を有する処理液を上向きに噴霧して排ガスと混合する処理液噴霧手段３２０が設けられている。 Further, as a conventional inertial dust collection type dust removing device, for example, the one shown in FIG. 8 is also known (see Patent Document 2). FIG. 8 is a schematic explanatory view showing another example of a conventional inertial force dust collecting type dust removing device.
A dust removing device 301 shown in FIG. 8 includes a processing chamber 302 through which exhaust gas flows from the bottom to the top. The dust removing device 301 is provided with a treatment liquid spraying means 320 for spraying a treatment liquid having a harmful substance treatment function upward and mixing it with exhaust gas.

また、処理室３０２内の中間高さ部には、慣性力集塵方式の除塵板群３１０が配置されている。この除塵板群３１０は、縞格子状に配置された複数のＶ字形溝状の上向き邪魔板３１１と、これら上向き邪魔板３１１と平行な縞格子状に配置された複数の逆Ｖ字形溝状の下向き邪魔板３１２とが交互に上下３段に配置されてなる。
ここで、各段の上向き邪魔板３１１は、処理室３０２の水平方向（排ガスの流れを遮る方向）に所定の間隔を置いて配置され、隣接する上向き邪魔板３１１の間には、処理液滴を含んだ排ガスが通過する入口３１３が形成されている。また、各段の下向き邪魔板３１２は、入口３１３とその両側の上向き邪魔板３１１の側縁部を上側から覆うように配置される。隣接する下向き邪魔板３１２間には、出口３１４が形成されている。 In addition, an inertia force dust collection type dust removing plate group 310 is disposed at an intermediate height in the processing chamber 302. The dust removing plate group 310 includes a plurality of V-shaped groove-like upward baffle plates 311 arranged in a striped lattice shape, and a plurality of inverted V-shaped groove-like shapes arranged in a striped grid pattern parallel to the upward baffle plate 311. The downward baffle plates 312 are alternately arranged in three stages.
Here, the upward baffle plate 311 of each stage is disposed at a predetermined interval in the horizontal direction of the processing chamber 302 (direction in which the flow of the exhaust gas is blocked), and between the adjacent upward baffle plates 311, the processing liquid droplets are disposed. An inlet 313 through which the exhaust gas containing the gas passes is formed. Moreover, the downward baffle plate 312 of each stage is arrange | positioned so that the side edge part of the entrance 313 and the upward baffle plate 311 of the both sides may be covered from the upper side. An outlet 314 is formed between adjacent downward baffle plates 312.

そして、処理室３０２の下部から上昇してきた処理液滴を含む排ガス（混合気流）は、第１段目の上向き邪魔板３１１間の入口３１３を通って、下向き邪魔板３１２に当たり、この下向き邪魔板３１２に案内されて入口３１３の両側の上向き邪魔板３１１の中に案内される。つまり、下向き邪魔板３１２によって流れの方向を逆Ｖ字形に方向転換し、この方向転換に伴って排ガス中の固体及び処理液滴を含む液体が慣性で気流から分離され、除去される。 The exhaust gas (mixed airflow) containing the processing droplets rising from the lower part of the processing chamber 302 passes through the inlet 313 between the first stage upward baffle plates 311 and hits the downward baffle board 312, and this downward baffle board Guided by 312 and guided into the upward baffle plate 311 on both sides of the entrance 313. That is, the flow direction is changed to an inverted V shape by the downward baffle plate 312, and the liquid containing the solids and the treatment droplets in the exhaust gas is separated from the air flow by inertia and removed along with this change of direction.

慣性により気流から分離された処理液滴を含む液体は、下向き邪魔板３１２に案内されて自重で上向き邪魔板３１１内に流下し、上向き邪魔板３１１内に貯留される。そして、貯留された液体の液面が下向き邪魔板３１２の下縁よりも高くなると、排ガスと処理液の混合気流は気泡となって、つまりバブリングしつつ貯留された液体の中を通り、下向き邪魔板３１２間の出口３１４から放出されることになるのである。 The liquid containing the processing droplets separated from the airflow by inertia is guided by the downward baffle plate 312, flows down into the baffle plate 311 by its own weight, and is stored in the upward baffle plate 311. When the liquid level of the stored liquid becomes higher than the lower edge of the baffle plate 312 downward, the mixed gas flow of the exhaust gas and the processing liquid becomes bubbles, that is, passes through the stored liquid while bubbling, and interferes downward. It is discharged from the outlet 314 between the plates 312.

特開平７−２８４６１９号公報JP-A-7-284619 特開平９−２３４３２０号公報Japanese Patent Laid-Open No. 9-234320

桧山和成著「実例にみる集塵技術」工業調査会発行、２００２年６月２４日、Ｐ３３Kazunari Hatakeyama, “Dust Collection Technology as Seen by Examples”, published by the Industrial Research Council, June 24, 2002, P33

しかしながら、これら従来の図６に示す除塵装置１０１、図７に示す除塵装置２０１、及び図８に示す除塵装置３０１にあっては、以下の問題点があった。
即ち、図６に示す除塵装置１０１の場合、装置本体１０２内に入り込んだ含塵ガスが、除塵板群１０４を通過するが、この際に、除塵板群１０４を通過しないで、図６における矢印Ｘで示すように、除塵板群１０４の下方に形成されているダスト堆積室１０５内を通過する含塵ガスもある。このように、除塵板群１０４を通過しない含塵ガスが存在すると、清浄ガス内にダストが混入し、除塵率が不十分になるという問題があった。 However, the conventional dust removing device 101 shown in FIG. 6, the dust removing device 201 shown in FIG. 7, and the dust removing device 301 shown in FIG. 8 have the following problems.
That is, in the case of the dust removing apparatus 101 shown in FIG. 6, the dust-containing gas that has entered the apparatus main body 102 passes through the dust removing plate group 104, but does not pass through the dust removing plate group 104 at this time. As indicated by X, there is also a dust-containing gas that passes through the dust accumulation chamber 105 formed below the dust removing plate group 104. As described above, when dust-containing gas that does not pass through the dust removal plate group 104 exists, there is a problem that dust is mixed into the clean gas and the dust removal rate becomes insufficient.

また、図７に示す除塵装置２０１の場合、除塵板群２０８におけるガスが通過する流路、即ち、絞り部２０６及び屈曲風路２０７が狭く、通過ガスの流速が上がると共に、圧損が上昇する。このため、既存の装置を改造し除塵率を向上させる際には、系全体の圧損余裕代がないと、実機化が困難であった。
更に、図８に示す除塵装置３０１の場合にも、除塵板群３１０におけるガスが通過する流路が狭く、通過ガスの流速が上がると共に、圧損が上昇する。このため、図８に示す除塵装置３０１の場合にも、既存の除塵装置を改造し除塵率を向上させる際には、系全体の圧損余裕代がないと、実機化が困難であった。 In the case of the dust removing device 201 shown in FIG. 7, the passage through which the gas passes in the dust removing plate group 208, that is, the throttle portion 206 and the bent air passage 207 are narrow, and the flow rate of the passing gas increases and the pressure loss increases. For this reason, when an existing device is modified to improve the dust removal rate, it is difficult to implement an actual machine without a pressure loss allowance for the entire system.
Further, in the case of the dust removing apparatus 301 shown in FIG. 8, the flow path through which the gas passes in the dust removing plate group 310 is narrow, the flow velocity of the passing gas increases, and the pressure loss increases. For this reason, even in the case of the dust removing device 301 shown in FIG. 8, when the existing dust removing device is modified to improve the dust removal rate, it is difficult to implement the device without a pressure loss allowance for the entire system.

従って、本発明は、上述の問題点に鑑みてなされたものであり、その目的は、除塵板群を通過しないダストを含んだ気体を極力少なくし、除塵率の向上を図ることができる慣性力集塵方式の除塵装置を提供することにある。
また、本発明の他の目的は、除塵板群を設けない場合と比較して、除塵板群における圧損の上昇を極わずかに抑えることができる慣性力集塵方式の除塵装置を提供することにある。 Therefore, the present invention has been made in view of the above-described problems, and the purpose thereof is an inertial force capable of reducing the gas containing dust that does not pass through the dust removal plate group as much as possible and improving the dust removal rate. An object of the present invention is to provide a dust collection device.
Another object of the present invention is to provide an inertial dust collecting type dust removing device capable of suppressing an increase in pressure loss in the dust removing plate group to a slight extent as compared with the case where no dust removing plate group is provided. is there.

上記目的を達成するために、本発明に係る除塵装置は、ダストを含んだ気体が入口から入り込み、除塵された気体が排出される出口を有する軸心が概垂直方向に延びる筒型の装置本体の前記入口から前記出口に向かう途中に、前記気体中のダストを除去する慣性力集塵方式の複数の短冊状の除塵板で構成される除塵板群を備え、該除塵板群を構成する複数の短冊状の除塵板を前記ダストを含んだ気体の流れ方向に沿って複数段かつ前記ダストを含んだ気体の流れ方向に交差する方向に延びるように配置してなると共に、各段の除塵板が、前記入口の全投影面積を覆うように複数配置されている除塵装置において、前記除塵板群を構成する各段の複数の除塵板の、前記流れ方向に交差する方向の両端部が、前記装置本体の壁面の内側に沿って該壁面との間に隙間がないように取り付けられた一対のサポート板に固定されており、各短冊状の前記除塵板は、水平方向に切断した際に入口に向いて開く開口部を有する形状に形成されるとともに、各段の複数の除塵板が、ダストを含む気体の流れ方向に沿って千鳥配置されており、複数段の除塵板は、当該複数段の除塵板を水平方向に切断した際に、各除塵板の開口部の幅をＬ１、各段において隣接する除塵板間の隙間の大きさをＬ２、上流側の段の除塵板と下流側の段の除塵板との間の隙間の大きさをＬ３とした場合、次の（１）式及び（２）式が成立するように配置されることを特徴としている。
Ｌ１＋Ｌ２≒Ｌ３×２ …（１）
Ｌ１≒Ｌ２ …（２） To achieve the above object, the dust remover Ru engaged to the invention, the gas containing the dust enters from the inlet, the cylindrical devices axis extending in the approximate vertical direction having an outlet dust gaseous is discharged On the way from the inlet to the outlet of the main body, a dust removing plate group including a plurality of strip dust removing plates of an inertia force collecting system that removes dust in the gas is configured, and the dust removing plate group is configured. A plurality of strip-shaped dust removing plates are arranged in a plurality of steps along the flow direction of the gas containing dust and extending in a direction crossing the flow direction of the gas containing dust. In the dust removing device in which a plurality of plates are arranged so as to cover the entire projected area of the inlet, both end portions of the plurality of dust removing plates at each stage constituting the dust removing plate group in a direction intersecting the flow direction, Along the inside of the wall surface of the apparatus body, Surface are fixed to a pair of support plates mounted for there is no gap between each strip of the dust removing plate is a shape having an opening that opens toward the inlet when cut horizontally A plurality of dust removal plates are formed in a staggered manner along the flow direction of the gas containing dust, and the plurality of dust removal plates are cut when the plurality of dust removal plates are cut horizontally. The width of the opening of each dust removing plate is L1, the size of the gap between adjacent dust removing plates is L2, and the clearance between the upstream dust removing plate and the downstream dust removing plate is When the size is L3, it is arranged that the following equations (1) and (2) are satisfied .
L1 + L2≈L3 × 2 (1)
L1≈L2 (2)

本発明に係る除塵装置によれば、除塵板群を構成する各段の複数の除塵板の、気体の流れ方向に交差する方向の両端部が、装置本体の壁面の内側に沿って該壁面との間に隙間がないように取り付けられた一対のサポート板に固定されているので、装置本体内に入り込んだダストを含んだ気体が、除塵板群を通過する際に、必ず、除塵板群を構成する各段の複数の除塵板を通過する。つまり、一対のサポート板が装置本体の壁面の内側に沿って該壁面との間に隙間がないように取り付けられ、そのサポート板に除塵板群を構成する各段の複数の除塵板の、気体の流れ方向に交差する方向の両端部が固定されているので、サポート板と装置本体の壁面との間を気体が通過せず、これらサポート板と装置本体の壁面との間を通過しようとする気体は、サポート板に衝突し、そして各段の複数の除塵板を通過する。このため、除塵板群を通過しないダストを含んだ気体が極力少なくなり、除塵率の向上を図ることができる。 According to the dust collector according to the present onset Ming, a plurality of dust removing plate of each stage constituting the dust removing plate group, both end portions in the direction orthogonal to the flow direction of the gas, wall surface along the inner wall surface of the apparatus main body Is fixed to a pair of support plates that are attached so that there is no gap between them. When the gas containing dust that has entered the device body passes through the dust removal plate group, the dust removal plate group must be Passes through a plurality of dust removing plates in each stage. In other words, a pair of support plates are attached along the inside of the wall surface of the apparatus main body so that there is no gap between them, and the gas of the plurality of dust removal plates at each stage constituting the dust removal plate group on the support plate Since both ends in the direction crossing the flow direction of the gas are fixed, the gas does not pass between the support plate and the wall surface of the apparatus main body, and tries to pass between the support plate and the wall surface of the apparatus main body. The gas collides with the support plate and passes through a plurality of dust removing plates at each stage. For this reason, the gas containing the dust which does not pass through a dust removal board group decreases as much as possible, and the improvement of a dust removal rate can be aimed at.

また、本発明に係る除塵装置によれば、各短冊状の前記除塵板は、水平方向に切断した際に入口に向いて開く開口部を有する形状に形成されるとともに、各段の複数の除塵板が、ダストを含む気体の流れ方向に沿って千鳥配置されており、複数段の除塵板は、当該複数段の除塵板を水平方向に切断した際に、各除塵板の開口部の幅をＬ１、各段において隣接する除塵板間の隙間の大きさをＬ２、上流側の段の除塵板と下流側の段の除塵板との間の隙間の大きさをＬ３とした場合、次の（１）式及び（２）式が成立するように配置される。
Ｌ１＋Ｌ２≒Ｌ３×２ …（１）
Ｌ１≒Ｌ２ …（２） Further, according to the dust collector according to the present onset bright, each strip of the dust removing plate is formed into a shape having an opening that opens toward the inlet when the cut in the horizontal direction, a plurality of stages Dust removal plates are arranged in a staggered manner along the flow direction of the gas containing dust, and the plurality of stages of dust removal plates are the width of the opening of each dust removal plate when the plurality of stages of dust removal plates are cut in the horizontal direction. Is L1, the size of the gap between adjacent dust removing plates in each stage is L2, and the size of the gap between the upstream side dust removing plate and the downstream side dust removing plate is L3, It arrange | positions so that (1) Formula and (2) Formula may be materialized.
L1 + L2≈L3 × 2 (1)
L1≈L2 (2)

これにより、前述の効果に加え、各段において隣接する除塵板間の隙間の大きさＬ２と上流側の段の除塵板と下流側の段の除塵板との間の隙間の大きさＬ３とがほぼ等しくなるので、気体が各段において隣接する除塵板間の隙間を通って上流側の段の除塵板と下流側の段の除塵板との間の隙間を通過する際に流速が上昇せず、平均流速を維持できる。このため、除塵板群において、実質の圧損が、各段において隣接する除塵板間の隙間の大きさＬ２部分×除塵板の段数に依存することになり、除塵板群を設けない場合と比較して、除塵板群における圧損の上昇を極わずかに抑えることができる。このため、既存の除塵装置に除塵板群を設置し、圧損を上昇させたくない場合の改造方法として実用上極めて有効なものとすることができる。 Thereby, in addition to the above-described effects, the size L2 of the gap between adjacent dust removal plates and the size L3 of the gap between the dust removal plate on the upstream side and the dust removal plate on the downstream side are obtained in each stage. The flow rate does not increase when the gas passes through the gap between the dust removal plates on the upstream side and the dust removal plate on the upstream side through the gap between adjacent dust removal plates in each stage. The average flow rate can be maintained. For this reason, in the dust removing plate group, the actual pressure loss depends on the size L2 portion of the gap between adjacent dust removing plates at each step × the number of steps of the dust removing plate, compared with the case where no dust removing plate group is provided. Thus, an increase in pressure loss in the dust removing plate group can be suppressed to a slight extent. For this reason, the dust removing plate group can be installed in the existing dust removing device, and can be extremely effective in practice as a remodeling method when it is not desired to increase the pressure loss.

本発明に係る除塵装置の実施形態の概略正面図である。It is a schematic front view of embodiment of the dust removal apparatus which concerns on this invention. 図１におけるＦ−Ｆ線（水平方向）に沿う断面模式図である。It is a cross-sectional schematic diagram which follows the FF line | wire (horizontal direction) in FIG. 図１に示す除塵装置に用いられる除塵板群の作用を説明するために水平方向に切断した状態の概略説明図である。It is a schematic explanatory drawing of the state cut | disconnected in the horizontal direction in order to demonstrate the effect | action of the dust removal board group used for the dust removal apparatus shown in FIG. 比較例の除塵装置の概略正面図である。It is a schematic front view of the dust removal apparatus of a comparative example. 本発明例の除塵装置と比較例の除塵装置のダスト粒径と除塵率との関係を示すグラフである。It is a graph which shows the relationship between the dust particle size and dust removal rate of the dust removal apparatus of the example of this invention, and the dust removal apparatus of a comparative example. 従来の慣性力集塵方式の除塵装置の一例を示し、（Ａ）は概略正面図、（Ｂ）は概略平面図である。An example of the conventional dust collection apparatus of an inertia force dust collection system is shown, (A) is a schematic front view, (B) is a schematic plan view. 従来の慣性力集塵方式の除塵装置の他の例を示す概略説明図である。It is a schematic explanatory drawing which shows the other example of the conventional dust removal apparatus of an inertia force dust collection system. 従来の慣性力集塵方式の除塵装置のもう一つ他の例を示す概略説明図である。It is a schematic explanatory drawing which shows another example of the conventional dust collection apparatus of an inertia force dust collection system.

以下、本発明の実施の形態を図面を参照して説明する。図１は、本発明に係る除塵装置の実施形態の概略正面図である。図２は、図１におけるＦ−Ｆ線（水平方向）に沿う断面模式図である。図３は、図１に示す除塵装置に用いられる除塵板群の作用を説明するために水平方向に切断した状態の概略説明図である。
図１に示す除塵装置１は、製鉄所におけるプロセス設備等で発生する気体中のダストを除去するための慣性力集塵方式の除塵装置で、装置本体２を備えている。装置本体２は、概上下方向（図１における概上下方向）に延びる円筒型に形成され、下部に略円錐形のダスト堆積室３を備えている。装置本体２の、ダスト堆積室３よりも上方に位置する壁面の一側には、円形の第１開口部２ａが形成され、その第１開口部２ａには、入口４ａを有する円筒型の入口構成部４が設けられている。そして、ダストを含んだ気体が入口４ａから入り込むようになっている。また、装置本体２の、第１開口部２ａよりも上方に位置する壁面の第１開口部２ａと対向する側には、円形の第２開口部２ｂが形成され、その第２開口部２ｂには、出口５ａを有する円筒型の出口構成部５が設けられている。そして、除塵された気体が出口５ａから排出されるようになっている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic front view of an embodiment of a dust removing apparatus according to the present invention. FIG. 2 is a schematic cross-sectional view taken along line FF (horizontal direction) in FIG. FIG. 3 is a schematic explanatory view of a state cut in the horizontal direction in order to explain the operation of the dust removing plate group used in the dust removing apparatus shown in FIG.
A dust removing device 1 shown in FIG. 1 is an inertial dust collecting type dust removing device for removing dust in a gas generated in process equipment or the like in an ironworks, and includes a device main body 2. The apparatus main body 2 is formed in a cylindrical shape extending in a substantially vertical direction (generally vertical direction in FIG. 1), and includes a substantially conical dust accumulation chamber 3 in the lower part. A circular first opening 2a is formed on one side of the wall surface of the apparatus main body 2 located above the dust accumulation chamber 3, and a cylindrical inlet having an inlet 4a is formed in the first opening 2a. A component 4 is provided. A gas containing dust enters from the inlet 4a. In addition, a circular second opening 2b is formed on the side of the apparatus main body 2 on the side facing the first opening 2a of the wall located above the first opening 2a, and the second opening 2b is formed in the second opening 2b. Is provided with a cylindrical outlet component 5 having an outlet 5a. And the dust-removed gas is discharged from the outlet 5a.

ここで、装置本体２の入口４ａから出口５ａに向かう途中には、気体中のダストを除去する慣性力集塵方式の除塵板群６が配設されている。この除塵板群６は、図１及び図２に示すように、複数の短冊状の除塵板６ａをダストを含んだ気体の流れ方向（水平方向、図１における左右方向）に沿って複数段（本実施形態にあっては３段）かつダストを含んだ気体の流れ方向に交差する方向（図１における上下斜め方向）に延びるように配置してなる。各除塵板６ａは、図１に示すように、ダストを含んだ気体の流れ方向（水平方向）に対する角度θで当該流れ方向に交差する方向に延びている。そして、各段の除塵板６ａは、図１及び図２に示すように、入口４ａから入り込んでくるダストを含んだ気体を遮るように、入口４ａの全投影面積を覆うように複数配置されている。また、除塵板群６を構成する各段の複数の除塵板６ａの、気体の流れ方向に交差する方向の両端部は、図１及び図２に示すように、装置本体２の壁面の内側に沿って壁面との間に隙間がないように取り付けられた一対のサポート板７，８に固定されている。各サポート板７，８は、装置本体２の壁面に溶接等によって水平方向に固定される。 Here, on the way from the inlet 4a of the apparatus main body 2 to the outlet 5a, an inertia force dust collection type dust removing plate group 6 for removing dust in the gas is disposed. As shown in FIGS. 1 and 2, the dust removing plate group 6 includes a plurality of strip-like dust removing plates 6a arranged in a plurality of stages along the flow direction of gas containing dust (horizontal direction, left and right direction in FIG. 1). In this embodiment, it is arranged so as to extend in a direction (upward and downward oblique direction in FIG. 1) intersecting the flow direction of the gas containing dust. As shown in FIG. 1, each dust removing plate 6a extends in a direction intersecting the flow direction at an angle θ with respect to the flow direction (horizontal direction) of the gas containing dust. As shown in FIGS. 1 and 2, a plurality of dust removing plates 6a at each stage are disposed so as to cover the entire projected area of the inlet 4a so as to block the gas containing dust entering from the inlet 4a. Yes. Moreover, as shown in FIG.1 and FIG.2, the both ends of the direction which cross | intersects the gas flow direction of the several dust removal board 6a of each step | level which comprises the dust removal board group 6 are inside the wall surface of the apparatus main body 2. FIG. It is being fixed to a pair of support plates 7 and 8 attached so that there may be no clearance between it and a wall surface. The support plates 7 and 8 are fixed to the wall surface of the apparatus main body 2 in the horizontal direction by welding or the like.

また、各短冊状の除塵板６ａは、図２に示すように、水平方向に切断した際に入口４ａに向いて開く開口部６ｂを有する形状に形成されるとともに、各段の複数の除塵板６ａが、ダストを含む気体の流れ方向に沿って千鳥配置されている。各除塵板６ａは、具体的には、等辺山形鋼で形成されている。なお、各除塵板６ａは、鋼以外の部材を用いてもよい。 Each strip-shaped dust removing plate 6a is formed in a shape having an opening 6b that opens toward the inlet 4a when cut in the horizontal direction, as shown in FIG. 2, and a plurality of dust removing plates at each stage. 6a is staggered along the flow direction of the gas containing dust. Specifically, each dust removing plate 6a is made of equilateral angle steel. Each dust removing plate 6a may use a member other than steel.

そして、複数段の除塵板６ａは、図３に示すように、当該複数段の除塵板６ａを水平方向に切断した際に、各除塵板６ａの開口部６ｂの幅をＬ１、各段において隣接する除塵板６ａ間の隙間１１の大きさをＬ２、上流側の段の除塵板６ａと下流側の段の除塵板６ａとの間の隙間１２の大きさをＬ３とした場合、次の（１）式及び（２）式が成立するように配置される。
Ｌ１＋Ｌ２≒Ｌ３×２ …（１）
Ｌ１≒Ｌ２ …（２） As shown in FIG. 3, when the plurality of dust removing plates 6a are cut in the horizontal direction, the plurality of dust removing plates 6a are adjacent to each other in the width of the opening 6b of each dust removing plate 6a. When the size of the gap 11 between the dust removing plates 6a is L2, and the size of the gap 12 between the upstream dust removing plate 6a and the downstream dust removing plate 6a is L3, the following (1 ) And (2).
L1 + L2≈L3 × 2 (1)
L1≈L2 (2)

次に、除塵装置１における除塵板群６の作用について、図１乃至図３を参照して説明する。
図１に示すように、ダストを含んだ気体（含塵ガス）は、入口４ａから装置本体１０２内に入り込んできて、除塵板群６のところに到達する。すると、ダストを含んだ気体は、図３に示すように、除塵板群６を構成する上流側の段（１段目）の隣接する除塵板６ａ間の隙間１１を通過するものと、上流側の段（１段目）の隣接する除塵板６ａに当接するものとに分かれる。 Next, the operation of the dust removing plate group 6 in the dust removing device 1 will be described with reference to FIGS. 1 to 3.
As shown in FIG. 1, a gas containing dust (dust-containing gas) enters the apparatus main body 102 from the inlet 4 a and reaches the dust removing plate group 6. Then, as shown in FIG. 3, the gas containing dust passes through the gap 11 between the adjacent dust removing plates 6 a of the upstream step (first step) constituting the dust removing plate group 6 and the upstream side. It is divided into the thing which contact | abuts the dust removal board 6a which adjoins the stage (1st stage).

ここで、上流側の段（１段目）の隣接する除塵板６ａ間の隙間１１を通過した気体中のダストは、気体とは密度差があるから、上流側の段（１段目）の隣接する除塵板６ａ間の隙間１１を通過すると、矢印Ａで示すように直進し、下流側の段（２段目）の除塵板６ａの開口６ｂから除塵板６ａ内に飛び込む。除塵板６ａ内は気体の流れが少ないので、ダストはそのまま除塵板６ａの中に滞留し、除塵板６ａの内壁に付着するか、下方に落下してダスト堆積室３内に堆積する。このようにして、気体中のダストが気体から分離され、気体から除去される。 Here, the dust in the gas that has passed through the gap 11 between the dust removing plates 6a adjacent to the upstream stage (first stage) has a density difference from the gas, so the upstream stage (first stage) When passing through the gap 11 between the adjacent dust removing plates 6a, it goes straight as indicated by an arrow A and jumps into the dust removing plate 6a from the opening 6b of the dust removing plate 6a at the downstream stage (second stage). Since there is little gas flow in the dust removing plate 6a, the dust stays in the dust removing plate 6a as it is, and adheres to the inner wall of the dust removing plate 6a or falls downward and accumulates in the dust accumulation chamber 3. In this way, dust in the gas is separated from the gas and removed from the gas.

その一方、上流側の段（１段目）の隣接する除塵板６ａ間の隙間１１を通過した気体（ダスト量を減じたもの）は、下流側の段（２段目）の除塵板６ａに遮られて左右に分かれ、矢印Ｂ１、Ｂ２で示すように、上流側の段（１段目）の除塵板６ａと下流側の段（２段目）の除塵板６ａとの間の隙間１２を通過する。次いで、左右に分かれた当該気体は、矢印Ｂ１、Ｂ２で示すように、下流側の段（２段目）の隣接する除塵板６ａ間の隙間１１を通過する。これら隙間１１を通過した気体は、それぞれ矢印Ｂ１、Ｂ２で示すように、下流側の最後の段（３段目）の除塵板６ａに遮られて下流側の段（２段目）の除塵板６ａと下流側の最後の段（３段目）の除塵板６ａとの間の隙間１２を通過して互いに合わさり、下流側の最後の段（３段目）の隣接する除塵板６ａ間の隙間１１を通過する。これにより、ダスト量を減じた清浄気体（清浄ガス）が出口５ａから排出される。 On the other hand, the gas (having reduced dust amount) that has passed through the gap 11 between adjacent dust removing plates 6a in the upstream stage (first stage) is transferred to the dust removing board 6a in the downstream stage (second stage). As shown by arrows B1 and B2, the gap 12 between the upstream side (first stage) dust removing plate 6a and the downstream side (second stage) dust removing plate 6a is blocked. pass. Next, the gas divided into the left and right passes through the gap 11 between the dust removing plates 6a adjacent to the downstream stage (second stage) as indicated by arrows B1 and B2. As shown by arrows B1 and B2, the gas that has passed through these gaps 11 is blocked by the dust removal plate 6a at the last downstream stage (third stage), and the dust removal board at the downstream stage (second stage). 6a and a gap between adjacent dust removing plates 6a in the last downstream stage (third stage) passing through a gap 12 between the dust removing plates 6a of the last downstream stage (third stage). 11 is passed. Thereby, the clean gas (clean gas) which reduced the dust amount is discharged | emitted from the exit 5a.

なお、上流側の段（１段目）の隣接する除塵板６ａに当接する気体中のダストは、上流側の段（１段目）の除塵板６ａの開口６ｂから除塵板６ａ内に飛び込んで当該除塵板６ａの内壁に付着するか、下方に落下してダスト堆積室３内に堆積することになる。これにより、気体中のダストが気体から分離され、気体から除去される。また、上流側の段（１段目）の隣接する除塵板６ａに当接する気体（ダストを含まないもの）は、前述と同様にして除塵板群６を通過し、出口５ａから排出される。 The dust in the gas contacting the adjacent dust removing plate 6a in the upstream stage (first stage) jumps into the dust removing board 6a from the opening 6b of the upstream stage (first stage) dust removing plate 6a. It adheres to the inner wall of the dust removing plate 6a or falls downward and accumulates in the dust accumulation chamber 3. Thereby, the dust in gas is isolate | separated from gas and removed from gas. Further, the gas (which does not contain dust) in contact with the adjacent dust removing plate 6a in the upstream stage (first stage) passes through the dust removing plate group 6 and is discharged from the outlet 5a in the same manner as described above.

ここで、前述したように、除塵板群６を構成する各段の複数の除塵板６ａの、気体の流れ方向に交差する方向の両端部は、図１及び図２に示すように、装置本体２の壁面の内側に沿って壁面との間に隙間がないように取り付けられた一対のサポート板７，８に固定されている。このため、装置本体２内に入り込んだダストを含んだ気体が、除塵板群６を通過する際に、必ず、除塵板群６を構成する各段の複数の除塵板６ａを通過する。つまり、一対のサポート板７，８が装置本体２の壁面の内側に沿って該壁面との間に隙間がないように取り付けられ、そのサポート板７，８に除塵板群６を構成する各段の複数の除塵板６ａの、気体の流れ方向に交差する方向の両端部が固定されているので、サポート板７，８と装置本体２の壁面との間を気体が通過せず、これらサポート板７，８と装置本体２の壁面との間を通過しようとする気体は、サポート板７，８に衝突し、そして各段の複数の除塵板６ａを通過する。このため、除塵板群６を通過しないダストを含んだ気体が極力少なくなり、除塵率の向上を図ることができる。 Here, as described above, both end portions of the plurality of dust removing plates 6a of each stage constituting the dust removing plate group 6 in the direction intersecting the gas flow direction are as shown in FIG. 1 and FIG. It is being fixed to a pair of support plates 7 and 8 attached so that there may be no clearance between the inner wall surface of 2 and a wall surface. For this reason, when the gas containing the dust that has entered the apparatus main body 2 passes through the dust removing plate group 6, it always passes through the plurality of dust removing plates 6 a of each stage constituting the dust removing plate group 6. That is, the pair of support plates 7 and 8 are attached along the inside of the wall surface of the apparatus main body 2 so that there is no gap between them, and each stage constituting the dust removing plate group 6 on the support plates 7 and 8. Since both ends of the plurality of dust removing plates 6a in the direction intersecting the gas flow direction are fixed, the gas does not pass between the support plates 7 and 8 and the wall surface of the apparatus main body 2, and these support plates The gas which is about to pass between the walls 7 and 8 and the wall surface of the apparatus main body 2 collides with the support plates 7 and 8 and passes through the plurality of dust removing plates 6a at each stage. For this reason, the gas containing the dust which does not pass through the dust removal board group 6 decreases as much as possible, and the dust removal rate can be improved.

なお、図１において、ダストの代表的な粒子軌跡を矢印Ｃで示す。ダストが除塵板群６を通過する際に、必ず、除塵板群６を構成する各段の複数の除塵板６ａを通過することがわかる。
また、前述したように、各短冊状の除塵板６ａは、水平方向に切断した際に入口４ａに向いて開く開口部６ｂを有する形状に形成されるとともに、各段の複数の除塵板６ａが、ダストを含む気体の流れ方向に沿って千鳥配置されており、複数段の除塵板６ａは、当該複数段の除塵板６ａを水平方向に切断した際に、各除塵板６ａの開口部６ｂの幅をＬ１、各段において隣接する除塵板６ａ間の隙間の大きさをＬ２、上流側の段の除塵板６ａと下流側の段の除塵板６ａとの間の隙間の大きさをＬ３とした場合、次の（１）式及び（２）式が成立するように配置される。
Ｌ１＋Ｌ２≒Ｌ３×２ …（１）
Ｌ１≒Ｌ２ …（２） In FIG. 1, a typical particle trajectory of dust is indicated by an arrow C. It can be seen that when the dust passes through the dust removing plate group 6, it always passes through the plurality of dust removing plates 6 a at each stage constituting the dust removing plate group 6.
Further, as described above, each strip-shaped dust removing plate 6a is formed in a shape having an opening 6b that opens toward the inlet 4a when cut in the horizontal direction, and a plurality of dust removing plates 6a at each stage are formed. The dust removal plates 6a are arranged in a zigzag manner along the flow direction of the gas containing dust, and the plurality of dust removal plates 6a are arranged in the openings 6b of the dust removal plates 6a when the plurality of dust removal plates 6a are cut in the horizontal direction. The width is L1, the size of the gap between adjacent dust removing plates 6a is L2, and the size of the gap between the upstream dust removing plate 6a and the downstream dust removing plate 6a is L3. In this case, they are arranged so that the following expressions (1) and (2) are established.
L1 + L2≈L3 × 2 (1)
L1≈L2 (2)

これにより、各段において隣接する除塵板６ａ間の隙間１１の大きさＬ２と上流側の段の除塵板６ａと下流側の段の除塵板６ａとの間の隙間１２の大きさＬ３とがほぼ等しくなるので、気体が各段において隣接する除塵板６ａ間の隙間１１を通って上流側の段の除塵板６ａと下流側の段の除塵板６ａとの間の隙間１２を通過する際に流速が上昇せず、平均流速を維持できる。このため、除塵板群６において、実質の圧損が各段において隣接する除塵板６ａ間の隙間１１の大きさＬ２部分×除塵板６ａの段数に依存することになり、除塵板群６を設けない場合と比較して、除塵板群６における圧損の上昇を極わずかに抑えることができる。このため、既存の装置に除塵板群を設置し、圧損を上昇させたくない場合の改造方法として実用上極めて有効なものとすることができる。 Accordingly, the size L2 of the gap 11 between the dust removal plates 6a adjacent to each other and the size L3 of the gap 12 between the dust removal plate 6a on the upstream side and the dust removal plate 6a on the downstream side are almost equal. Since the gas flows through the gap 11 between the dust removing plates 6a adjacent to each other in each stage, the flow velocity when the gas passes through the gap 12 between the dust removing plate 6a on the upstream stage and the dust removing board 6a on the downstream stage. Does not rise, and the average flow rate can be maintained. For this reason, in the dust removing plate group 6, the substantial pressure loss depends on the size L2 portion of the gap 11 between adjacent dust removing plates 6a in each step × the number of steps of the dust removing plate 6a, and the dust removing plate group 6 is not provided. Compared to the case, an increase in pressure loss in the dust removing plate group 6 can be suppressed to a slight extent. For this reason, a dust removal board group can be installed in the existing apparatus, and it can be made extremely effective practically as a remodeling method when it is not desired to increase the pressure loss.

以上、本発明の実施形態について説明してきたが、本発明はこれに限定されずに種々の変更、改良を行うことができる。
例えば、装置本体２は、必ずしも上下方向に延びる必要はなく、水平方向に延びていてもよい。また、装置本体２は、必ずしも円筒型である必要はなく、筒型であれば、四角形筒などの多角形筒型であてもよい。また、装置本体２に設けられる入口４ａ及び出口５ａの位置は、図示した場合に限られず、気体の入口及び出口が装置本体２に連通するように設けられれば良い。 As mentioned above, although embodiment of this invention has been described, this invention is not limited to this, A various change and improvement can be performed.
For example, the apparatus main body 2 does not necessarily have to extend in the vertical direction, and may extend in the horizontal direction. Moreover, the apparatus main body 2 does not necessarily need to be cylindrical, and may be a polygonal cylinder such as a rectangular cylinder as long as it is a cylinder. Further, the positions of the inlet 4a and the outlet 5a provided in the apparatus main body 2 are not limited to those shown in the figure, and may be provided so that the gas inlet and outlet communicate with the apparatus main body 2.

また、各除塵板６ａの延びる方向は、気体の流れ方向に対して交差する方向に延びていればよい。
また、除塵板群６を構成する除塵板６ａの段数は、複数段であれば、３段でなくてもよい。
更に、サポート板７，８は、装置本体２の壁面の内側に沿って該壁面との間に隙間がないように取り付けあれていればよく、必ずしも、装置本体２の壁面に溶接等によって水平方向に固定される必要はない。 Moreover, the direction where each dust removal board 6a is extended should just extend in the direction which cross | intersects with respect to the flow direction of gas.
Further, the number of stages of the dust removing plates 6a constituting the dust removing plate group 6 may not be three as long as it is a plurality of stages.
Furthermore, the support plates 7 and 8 are only required to be attached along the inside of the wall surface of the apparatus main body 2 so that there is no gap between them. There is no need to be fixed to.

また、各除塵板６ａは、短冊状で形成され、水平方向に切断した際に入口４ａに向いて開く開口部６ｂを有する形状に形成されていればよく、必ずしも、等辺山形鋼を用いる必要はない。例えば、各除塵板６ａの水平方向に切断した際の形状は、半円形状、コの字形状など他の形状であってもよい。 Further, each dust removing plate 6a is formed in a strip shape and may be formed in a shape having an opening 6b that opens toward the inlet 4a when cut in the horizontal direction. Absent. For example, the shape of each dust removing plate 6a when cut in the horizontal direction may be other shapes such as a semicircular shape or a U-shape.

本発明の効果を検証すべく、図１に示す本発明例の除塵装置１と図４に示す比較例の除塵装置５１について、含塵気体を流し、それぞれの除塵率と圧損を数値解析によって確認した。
この確認に用いる図１に示す本発明例の除塵装置１の寸法は、下記の通りである。
ダスト堆積室３を含む装置本体２の高さ：９ｍ
装置本体２の内径：φ３．２ｍ
入口構成部４の内径：φ２ｍ
出口構成部５の内径：φ２ｍ
除塵板群６の上下方向高さ：２．３ｍ In order to verify the effect of the present invention, the dust removal apparatus 1 of the present invention shown in FIG. 1 and the dust removal apparatus 51 of the comparative example shown in FIG. did.
The dimensions of the dust removing apparatus 1 of the present invention example shown in FIG. 1 used for this confirmation are as follows.
The height of the apparatus main body 2 including the dust accumulation chamber 3 is 9 m.
Inner diameter of main body 2: φ3.2 m
Inner diameter of entrance component 4: φ2m
Inner diameter of outlet component 5: φ2m
Vertical height of dust removing plate group 6: 2.3 m

また、この確認に用いる図４に示す比較例の除塵装置５１について説明すると、この除塵装置１は、図１に示す本発明例の除塵装置１と同様に、製鉄所におけるプロセス設備等で発生する気体中のダストを除去するための慣性力集塵方式の除塵装置で、装置本体５２を備えている。装置本体５２は、図１に示す装置本体２と同様に、概上下方向に延びる円筒型に形成され、下部に略円錐形のダスト堆積室５３を備えている。装置本体５２の、ダスト堆積室５３よりも上方に位置する壁面の一側には、円形の第１開口部５２ａが形成され、その第１開口部５２ａには、入口５４ａを有する円筒型の入口構成部５４が設けられている。また、装置本体５２の、第１開口部５２ａよりも上方に位置する壁面の第１開口部５２ａと対向する側には、円形の第２開口部５２ｂが形成され、その第２開口部５２ｂには、出口５５ａを有する円筒型の出口構成部５５が設けられている。 Also, the dust removal device 51 of the comparative example shown in FIG. 4 used for this confirmation will be described. This dust removal device 1 is generated in the process equipment or the like at the ironworks, like the dust removal device 1 of the present invention example shown in FIG. This is an inertial dust collection type dust removing device for removing dust in the gas, and includes a device main body 52. Similar to the apparatus main body 2 shown in FIG. 1, the apparatus main body 52 is formed in a cylindrical shape extending substantially in the vertical direction, and includes a substantially conical dust accumulation chamber 53 in the lower part. A circular first opening 52a is formed on one side of the wall surface of the apparatus main body 52 located above the dust accumulation chamber 53, and a cylindrical inlet having an inlet 54a is formed in the first opening 52a. A component 54 is provided. In addition, a circular second opening 52b is formed on the side of the apparatus main body 52 that faces the first opening 52a of the wall surface located above the first opening 52a, and the second opening 52b Is provided with a cylindrical outlet component 55 having an outlet 55a.

また、装置本体５２の入口５４ａから出口５５ａに向かう途中には、図１に示す除塵装置１と同様に、気体中のダストを除去する慣性力集塵方式の除塵板群５６が配設されている。この除塵板群５６は、図１に示す除塵板群６と同様に、複数の短冊状の除塵板５６ａをダストを含んだ気体の流れ方向に沿って複数段かつダストを含んだ気体の流れ方向に交差する方向に延びるように配置してなる。各除塵板５６ａは、ダストを含んだ気体の流れ方向（水平方向）に対する角度が、図１の除塵板６ａよりもやや大きな角度で当該流れ方向に交差する方向に延びている。そして、各段の除塵板５６ａは、入口５４ａから入り込んでくるダストを含んだ気体を遮るように、入口５４ａの全投影面積を覆うように複数配置されている。 Further, in the middle of the apparatus main body 52 from the inlet 54a to the outlet 55a, an inertia force dust collection type dust removing plate group 56 for removing dust in the gas is disposed in the same manner as the dust removing apparatus 1 shown in FIG. Yes. In the dust removing plate group 56, as in the dust removing plate group 6 shown in FIG. 1, a plurality of strip-shaped dust removing plates 56a are arranged in a plurality of stages along the gas flow direction including dust and the gas flow direction including dust. It arrange | positions so that it may extend in the direction which cross | intersects. Each dust removing plate 56a extends in a direction intersecting the flow direction at an angle slightly larger than the dust removing plate 6a of FIG. 1 with respect to the flow direction (horizontal direction) of the gas containing dust. A plurality of dust removing plates 56a at each stage are arranged so as to cover the entire projected area of the inlet 54a so as to block the gas containing dust entering from the inlet 54a.

ここで、除塵板群５６においては、図１に示す除塵板群６と異なり、除塵板群５６を構成する各段の複数の除塵板５６ａの、気体の流れ方向に交差する方向の一端部（上端部）のみが、装置本体５２の壁面の内側に沿って壁面との間に隙間がないように取り付けられたサポート板５７に固定されており、複数の除塵板５６ａの他端部にサポート板が取り付けられていない。そして、装置本体５２の壁面と複数の除塵板５６ａの他端部との間には、大きな隙間５８が形成されている。 Here, in the dust removing plate group 56, unlike the dust removing plate group 6 shown in FIG. 1, one end of the plurality of dust removing plates 56 a of each stage constituting the dust removing plate group 56 in the direction intersecting the gas flow direction ( Only the upper end portion) is fixed to a support plate 57 that is attached along the inside of the wall surface of the apparatus main body 52 so that there is no gap between the wall surface and the support plate at the other end portion of the plurality of dust removing plates 56a. Is not installed. A large gap 58 is formed between the wall surface of the apparatus main body 52 and the other end portions of the plurality of dust removing plates 56a.

この確認に用いる図４に示す比較例の除塵装置５１の寸法は、図１に示す本発明例の除塵装置１と同様に、下記の通りである。
ダスト堆積室５３を含む装置本体５２の高さ：９ｍ
装置本体５２の内径：φ３．２ｍ
入口構成部５４の内径：φ２ｍ
出口構成部５５の内径：φ２ｍ
除塵板群５６の上下方向高さ：２．３ｍ
そして、図１に示す本発明例の除塵装置１及び図４に示す比較例の除塵装置５１に流す含塵気体の流体条件は次のとおりである。 The dimensions of the dust removing device 51 of the comparative example shown in FIG. 4 used for this confirmation are as follows, similar to the dust removing device 1 of the example of the present invention shown in FIG.
The height of the apparatus main body 52 including the dust accumulation chamber 53: 9 m
Inner diameter of main body 52: φ3.2 m
Inner diameter of entrance component 54: φ2m
Inner diameter of outlet component 55: φ2m
Vertical height of dust removing plate group 56: 2.3 m
And the fluid conditions of the dust-containing gas which flows into the dust removal apparatus 1 of the example of this invention shown in FIG. 1 and the dust removal apparatus 51 of the comparative example shown in FIG. 4 are as follows.

＜流体条件＞
温度：３５０℃
入口圧力：６６７Ｐａ
流量：１５００Ｎｍ^３／ｈ
流体組成：空気６４体積％、アルゴン３６体積％
ダストかさ比重：１．４１
ダスト粒子径分布：表１参照 <Fluid conditions>
Temperature: 350 ° C
Inlet pressure: 667Pa
Flow rate: 1500 Nm ³ / h
Fluid composition: 64% by volume of air, 36% by volume of argon
Dust bulk specific gravity: 1.41
Dust particle size distribution: see Table 1

また、図１に示す本発明例の除塵装置１及び図４に示す比較例の除塵装置５１における各除塵板の形状は次の通りである。
＜除塵板形状＞
１００ｍｍ×１００ｍｍ×１０ｄの等辺山形鋼×３段
前述した、各除塵板の開口部の幅をＬ１、各段において隣接する除塵板間の隙間の大きさをＬ２、上流側の段の除塵板と下流側の段の除塵板との間の隙間の大きさをＬ３とした場合、次の（１）式及び（２）式が成立するように３段の除塵板を配置する。
Ｌ１＋Ｌ２≒Ｌ３×２ …（１）
Ｌ１≒Ｌ２ …（２） Moreover, the shape of each dust removal board in the dust removal apparatus 1 of the example of this invention shown in FIG. 1 and the dust removal apparatus 51 of the comparative example shown in FIG. 4 is as follows.
<Dust removal plate shape>
100 mm × 100 mm × 10d equilateral angle steel × 3 steps The width of the opening of each dust removal plate is L1, the size of the gap between adjacent dust removal plates in each step is L2, and the upstream dust removal plate and When the size of the gap between the downstream dust removal plate is L3, the three dust removal plates are arranged so that the following equations (1) and (2) are satisfied.
L1 + L2≈L3 × 2 (1)
L1≈L2 (2)

確認結果である、図１に示す本発明例の除塵装置１と図４に示す比較例の除塵装置５１の除塵率を図５に示す。
図５を参照すると、本発明例の場合、ダスト粒子径がφ０．２５ｍｍ〜φ１ｍｍの除塵率が比較例に対して約２０％向上していることがわかった。表１を参照すると、ダスト粒子径がφ０．２５ｍｍ〜φ１ｍｍの範囲は、全体のダスト粒子の重量に対して４９重量％になっている。 FIG. 5 shows the dust removal rates of the dust removing apparatus 1 of the present invention example shown in FIG. 1 and the dust removing apparatus 51 of the comparative example shown in FIG.
Referring to FIG. 5, it was found that in the case of the present invention example, the dust removal rate with a dust particle diameter of φ0.25 mm to φ1 mm was improved by about 20% compared to the comparative example. Referring to Table 1, the range of the dust particle diameter of φ0.25 mm to φ1 mm is 49% by weight with respect to the weight of the entire dust particles.

また、ダスト粒子径がφ５ｍｍ以上については本発明例及び比較例の双方の除塵率がほぼ１００％であった。
更に、ダスト粒子径がφ０．０５ｍｍ以下については本発明例及び比較例の双方の除塵率がほぼ０％であった。
従って、約半分の重量％を占めるダスト粒子径がφ０．２５ｍｍ〜φ１ｍｍの除塵率について本発明例が比較例に対して飛躍的に向上していることがわかる。 In addition, when the dust particle diameter is φ5 mm or more, the dust removal rate of both the inventive example and the comparative example was almost 100%.
Further, when the dust particle diameter is φ0.05 mm or less, the dust removal rate of both the inventive example and the comparative example was almost 0%.
Therefore, it can be seen that the example of the present invention is remarkably improved over the comparative example with respect to the dust removal rate in which the dust particle diameter occupying about half the weight% is φ0.25 mm to φ1 mm.

ここで、図４に示す比較例の除塵装置５１の場合、装置本体５２内に入り込んだダスト含む気体が、除塵板群５６を通過するが、この際に、除塵板群５６を通過しないで、図４における矢印Ｅで示すように、装置本体５２の壁面と複数の除塵板５６ａとの間に形成された大きな隙間５８からダストを含んだ気体が通過してしまうことがある。この場合、清浄ガス内にダストが混入し、除塵率が不十分になる。図４において、矢印Ｄは隙間５８を通過するダストの粒子軌跡であり、ダストの粒子が隙間５８を通過し、清浄ガス内に混入してしまうことがわかる。 Here, in the case of the dust removing device 51 of the comparative example shown in FIG. 4, the gas containing dust that has entered the device main body 52 passes through the dust removing plate group 56, but at this time, without passing through the dust removing plate group 56, As indicated by an arrow E in FIG. 4, a gas containing dust may pass through a large gap 58 formed between the wall surface of the apparatus main body 52 and the plurality of dust removing plates 56a. In this case, dust is mixed in the clean gas, and the dust removal rate becomes insufficient. In FIG. 4, an arrow D is a particle trajectory of dust passing through the gap 58, and it can be seen that dust particles pass through the gap 58 and enter the clean gas.

次に、確認結果である図１に示す本発明例の除塵装置１と図４に示す比較例の除塵装置５１の圧損を表２に示す。 Next, Table 2 shows the pressure loss of the dust removing device 1 of the present invention example shown in FIG. 1 and the dust removing device 51 of the comparative example shown in FIG.

表２を参照すると、本発明例の除塵板群において、除塵板群を設けない場合と比較して、除塵板群における圧損の上昇を極わずかに抑えることができることがわかった。なお、比較例の除塵板群においても、除塵板群を設けない場合と比較して、除塵板群における圧損の上昇は極めてわずかであることがわかった。 Referring to Table 2, it was found that the increase in pressure loss in the dust removing plate group can be suppressed to a slight extent in the dust removing plate group of the present invention as compared with the case where the dust removing plate group is not provided. In the dust removal plate group of the comparative example, it was found that the increase in pressure loss in the dust removal plate group was very small compared to the case where the dust removal plate group was not provided.

１除塵装置
２装置本体
２ａ第１開口部
２ｂ第２開口部
３ダスト堆積室
４入口構成部
４ａ入口
５出口構成部
５ａ出口
６除塵板群
６ａ除塵板
６ｂ開口部
７，８サポート板
１１各段において隣接する除塵板間の隙間
１２上流側の段の除塵板と下流側の段の除塵板との間の隙間
５１除塵装置
５２装置本体
５２ａ第１開口部
５２ｂ第２開口部
５３ダスト堆積室
５４入口構成部
５４ａ入口
５５出口構成部
５５ａ出口
５６除塵板群
５６ａ除塵板
５７サポート板
１０１除塵装置
１０２装置本体
１０３ダスト堆積室
１０４除塵板群
１０４ａ除塵板
１０５ダスト
２０１除塵装置
２０２装置本体
２０３中空部材
２０３ａ開口部
２０４，２０５側面
２０６絞り部
２０７屈曲風路
２０８除塵板群
３０１除塵装置
３０２処理室
３１０除塵板群
３１１上向き邪魔板
３１２下向き邪魔板
３１３入口
３１４出口
３２０処理液噴霧手段 DESCRIPTION OF SYMBOLS 1 Dust remover 2 Apparatus main body 2a 1st opening part 2b 2nd opening part 3 Dust accumulation chamber 4 Inlet component part 4a Inlet 5 Outlet component part 5a Outlet 6 Dust removal board group 6a Dust removal board 6b Opening part 7, 8 Support plate 11 Each stage 12 between adjacent dust removing plates 12 A gap between the upstream dust removing plate and the downstream dust removing plate 51 dust removing device 52 device main body 52a first opening 52b second opening 53 dust accumulation chamber 54 Inlet component 54a Inlet 55 Outlet component 55a Outlet 56 Dust removal plate group 56a Dust removal plate 57 Support plate 101 Dust removal device 102 Device main body 103 Dust accumulation chamber 104 Dust removal plate group 104a Dust removal plate 105 Dust 201 Dust removal device 202 Device main body 203 Hollow member 203a Openings 204, 205 Side 206 Throttle 207 Bent air passage 208 Dust removal plate group 301 Dust removal equipment 302 the processing chamber 310 dust removing plate group 311 upward baffle 312 downward baffle 313 inlet 314 outlet 320 processing liquid spraying means

Claims

Dust in the gas is en route from the inlet to the outlet of the cylindrical device body having an outlet having an outlet through which gas containing dust enters from the inlet and from which dust is removed is discharged. A dust collecting plate group composed of a plurality of strip-shaped dust removing plates of an inertial force dust collection method for removing dust, and a plurality of strip-shaped dust removing plates constituting the dust removing plate group are flow directions of the gas containing the dust Are arranged so as to extend in a direction intersecting the flow direction of the gas containing dust, and a plurality of dust removing plates are arranged so as to cover the entire projected area of the inlet. In the dust remover
A plurality of dust removing plates at each stage constituting the dust removing plate group are attached so that both end portions in a direction intersecting the flow direction are not spaced from each other along the inner wall surface of the apparatus main body. Fixed to a pair of support plates ,
Each strip-shaped dust removing plate is formed in a shape having an opening that opens toward the inlet when cut in the horizontal direction, and the plurality of dust removing plates at each stage are arranged along the flow direction of the gas containing dust. The multi-stage dust removing plates are arranged in a staggered manner. When the multi-stage dust removing plates are cut in the horizontal direction, the width of the opening of each dust removing plate is L1, and the gap between adjacent dust removing plates in each stage When L2 is L2 and the size of the gap between the upstream dust removal plate and the downstream dust removal plate is L3, the following equations (1) and (2) are satisfied. A dust removing device, which is disposed in
L1 + L2≈L3 × 2 (1)
L1≈L2 (2)