JPH0664708U - Venturi tube mounting structure for bag filter device - Google Patents

Venturi tube mounting structure for bag filter device

Info

Publication number
JPH0664708U
JPH0664708U JP007117U JP711793U JPH0664708U JP H0664708 U JPH0664708 U JP H0664708U JP 007117 U JP007117 U JP 007117U JP 711793 U JP711793 U JP 711793U JP H0664708 U JPH0664708 U JP H0664708U
Authority
JP
Japan
Prior art keywords
filter cloth
clean gas
venturi tube
filter
venturi
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
JP007117U
Other languages
Japanese (ja)
Other versions
JP2528440Y2 (en
Inventor
幸広 曽谷
悦次 隅川
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.)
Plantec Inc
Original Assignee
Plantec Inc
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 Plantec Inc filed Critical Plantec Inc
Priority to JP1993007117U priority Critical patent/JP2528440Y2/en
Priority to KR1019930014697A priority patent/KR940019343A/en
Publication of JPH0664708U publication Critical patent/JPH0664708U/en
Application granted granted Critical
Publication of JP2528440Y2 publication Critical patent/JP2528440Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023Pockets filters, i.e. multiple bag filters mounted on a common frame
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/08Filter cloth, i.e. woven, knitted or interlaced material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42Auxiliary equipment or operation thereof
    • B01D46/4281Venturi's or systems showing a venturi effect

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

(57)【要約】 【目的】バグフィルタ装置のベンチュリ管部分での圧力
損失を低減させることにより、誘引通風機の負担を軽減
するとともに、ベンチュリ管が位置する濾布上部の付着
ダストの払い落しを容易にするベンチュリ管取付構造を
提供する。 【構成】濾過室1と清浄ガス通路4とが濾布2を有する
仕切板3によって区分され、濾過室1と清浄ガス通路4
とが濾布2及び濾布2の上部に設けられたベンチュリ管
7を通じて連通されたバグフィルタ装置において、ベン
チュリ管7は、その周辺部分に空隙8を有して仕切板3
に設けられ、濾布2内と清浄ガス通路4とが、空隙8及
びベンチュリ管7内を通じて連通されてなる。
(57) [Abstract] [Purpose] By reducing the pressure loss in the venturi pipe part of the bag filter device, the load on the induction fan is reduced and the dust adhering to the upper part of the filter cloth where the venturi pipe is located is removed. A Venturi tube mounting structure that facilitates A filter chamber 1 and a clean gas passage 4 are divided by a partition plate 3 having a filter cloth 2, and the filter chamber 1 and the clean gas passage 4 are separated.
In the bag filter device in which and are communicated with each other through the filter cloth 2 and the venturi tube 7 provided on the filter cloth 2, the venturi tube 7 has the void 8 in the peripheral portion thereof and the partition plate 3
The filter cloth 2 and the clean gas passage 4 are connected to each other through the gap 8 and the venturi pipe 7.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、気体流からダスト及び浮遊物質を分離し、除去または回収するバグ フィルタ装置に関し、特に、バグフィルタ装置の濾布内上部に設けられるベンチ ュリ管の取付構造に関する。 The present invention relates to a bag filter device for separating and removing dust and suspended matter from a gas flow, and more particularly to a mounting structure of a bench tube provided in an upper part of a filter cloth inside the bag filter device.

【0002】[0002]

【従来の技術】[Prior art]

図7及び図8は、従来から使用されてきたパルスジェット式バグフィルタ装置 のベンチュリ管周辺の概略構成を示し、図7は濾過作業時を示し、図8(a)は 払い落し作業時を示し、図8(b)は払い落し作業時の濾布内の圧力分布を示す 。 7 and 8 show a schematic structure around a venturi tube of a pulse jet type bag filter device that has been conventionally used, FIG. 7 shows a filtering operation, and FIG. 8 (a) shows a removing operation. FIG. 8 (b) shows the pressure distribution in the filter cloth during the removal work.

【0003】 図7において、aはバグフィルタ装置の濾過室であり、該濾過室内に懸架され た複数の濾布bは、複数の縦材と該縦材を連結する環状材とにより構成されたか ご状のリテーナrによって内部から支持されている。In FIG. 7, a is a filter chamber of the bag filter device, and the plurality of filter cloths b suspended in the filter chamber are composed of a plurality of vertical members and an annular member connecting the vertical members. It is supported from the inside by a cage-shaped retainer r.

【0004】 濾布bの上端は、可撓性を有するスナップリングcを介して折返された後、ス ナップリングcの外伸力により止め金具dに装着されたカラーeに圧着されるこ とにより保持されている。The upper end of the filter cloth b is folded back through the flexible snap ring c and then crimped to the collar e mounted on the stopper fitting d by the outward extension force of the snap ring c. Is held by.

【0005】 濾布b及びリテーナrにより構成された円筒状の濾過体の上部には、ベンチュ リ管uが同じく止め金具d及びカラーeにより濾過体の上部外周を覆う状態で装 着され、該ベンチュリ管u上方の清浄ガス通路f内には、図8(a)に示す払い 落し作業時においてパルスジェット空気jを噴射させるためのノズルnが配設さ れている。A venturi tube u is attached to an upper portion of a cylindrical filter body composed of a filter cloth b and a retainer r so as to cover the outer periphery of the upper portion of the filter body with a fastener metal d and a collar e. In the clean gas passage f above the venturi pipe u, a nozzle n for injecting the pulse jet air j during the cleaning operation shown in FIG. 8A is arranged.

【0006】 濾過室aに導入されたダスト及び酸性有害ガス等を含む排ガスgは、濾布bの 表面に形成されている中和用薬剤を含む付着層によって、ダストが濾過され、酸 性有害ガスが中和されて付着層表面に堆積して粉じん層hとなり、粉じん層h及 び付着層と濾布bを通過した排ガスgは清浄ガスkとなって、ベンチュリ管uを 経由して清浄ガス通路fに入り、図示しない誘引通風機に吸引されて煙突から外 部に排出される(図7参照)。The exhaust gas g containing dust and acidic harmful gas introduced into the filtration chamber a is dust-filtered by an adhesion layer containing a neutralizing agent formed on the surface of the filter cloth b, so that the acid harmful gas The gas is neutralized and deposited on the surface of the adhering layer to form a dust layer h, and the exhaust gas g passing through the dust layer h and the adhering layer and the filter cloth b becomes a clean gas k, which is cleaned via the Venturi tube u. The gas enters the gas passage f, is sucked by an unillustrated draft fan, and is discharged from the chimney to the outside (see FIG. 7).

【0007】 濾過作業の継続に伴い、堆積する粉じん層hの層厚が増加してくると、排ガス gの通気抵抗が増大し、図示しない誘引通風機の負担が上昇するため、ノズルn からパルスジェット空気jを短時間噴射させると、パルスジェット空気jはベン チュリ管uを貫通して濾布b先端まで到達して粉じん層hに衝撃を与えて濾布b から遊離させるとともに、清浄ガス通路f内の清浄ガスkを2次流体として大量 に誘引し、同じくベンチュリ管uを経由して濾布bの内部に突入して、粉じん層 hに内面から送気して剥離させることにより、粉じん層hの払い落しを行う〔図 8(a)参照〕。この払い落し時において濾布b上部に作用する2次流体kの圧 力分布は、図8(b)に示すように、ベンチュリ管uが位置する部分が負となり 、これよりも下の部分に所定の圧力が作用することになる。When the layer thickness of the dust layer h that accumulates increases as the filtration work continues, the ventilation resistance of the exhaust gas g increases and the load on the induction fan (not shown) increases. When the jet air j is jetted for a short time, the pulse jet air j penetrates the venturi tube u to reach the tip of the filter cloth b and impacts the dust layer h to be released from the filter cloth b, and at the same time, the clean gas passage A large amount of the clean gas k in f is attracted as a secondary fluid, which also rushes into the inside of the filter cloth b via the Venturi tube u, and sends air to the dust layer h from the inner surface to separate the dust, and thus the dust is discharged. The layer h is removed [see FIG. 8 (a)]. As shown in FIG. 8B, the pressure distribution of the secondary fluid k acting on the upper part of the filter cloth b at the time of this removal is negative in the part where the venturi tube u is located, and is in the part below this. A predetermined pressure will act.

【0008】 そして、払い落し作業が終われば、排ガスgは再び濾布b面上に残存する付着 層及び濾布bを通過する通常の濾過作業に復帰する。Then, when the cleaning operation is finished, the exhaust gas g returns to the normal filtration operation in which the exhaust gas g passes through the adhering layer remaining on the surface of the filter cloth b and the filter cloth b again.

【0009】[0009]

【考案が解決しようとする課題】[Problems to be solved by the device]

しかしながら、上記従来のパルスジェット式バグフィルタ装置のように、ベン チュリ管uを濾布b入口に密接して装着したものでは、粉じん層h及び付着層と 濾布bで濾過・中和された清浄ガスkは全て該ベンチュリ管uを通過することと なるため、通常の濾過作業時に該ベンチュリ管u部における清浄ガスkの縮流及 び拡散による圧力損失が増加する結果となり、清浄ガスkを吸引する誘引通風機 の負担を重くしていた。 However, in the case where the venturi tube u is closely attached to the inlet of the filter cloth b like the above-mentioned conventional pulse jet type bag filter device, the dust layer h and the adhering layer and the filter cloth b are filtered and neutralized. Since all the clean gas k passes through the venturi pipe u, pressure loss due to contraction and diffusion of the clean gas k in the part of the venturi pipe u increases during normal filtration work. The load on the suction fan that sucked in was heavy.

【0010】 また、払い落し時のパルスジェット気流jに誘引される2次流体kも全量が該 ベンチュリ管uを通過するために、上記と同様の理由で圧力を損失するだけでな く、図8(a),(b)に示すように、ベンチュリ管uの背部に位置する濾布b の上部には2次流体kが逆流しないために、粉じん層hの払い落しができず、上 部の粉じん層hは残留して濾布b表面に固着し、濾過面積を狭める結果となって いた。Further, since the entire amount of the secondary fluid k attracted by the pulse jet air flow j at the time of brushing off also passes through the venturi tube u, not only the pressure is lost for the same reason as described above, but As shown in FIGS. 8 (a) and 8 (b), since the secondary fluid k does not flow back to the upper part of the filter cloth b located at the back of the Venturi tube u, the dust layer h cannot be wiped off and the upper part is not removed. The dust layer h of No. 2 remained and adhered to the surface of the filter cloth b, resulting in narrowing the filtration area.

【0011】[0011]

【課題を解決するための手段】[Means for Solving the Problems]

本考案のバグフィルタ装置のベンチュリ管取付構造は、濾過室と清浄ガス通路 とが濾布を有する仕切板によって区分され、上記濾過室と清浄ガス通路とが濾布 及び濾布の上部に設けられたベンチュリ管を通じて連通されたバグフィルタ装置 において、前記ベンチュリ管は、その周辺部分に空隙を有して前記仕切板に設け られ、前記濾布内と前記清浄ガス通路とが、上記空隙及びベンチュリ管内を通じ て連通されたものである。 In the venturi tube mounting structure of the bag filter device of the present invention, the filter chamber and the clean gas passage are separated by a partition plate having a filter cloth, and the filter chamber and the clean gas passage are provided on the filter cloth and the upper portion of the filter cloth. In the bag filter device communicated through the venturi pipe, the venturi pipe is provided in the partition plate with a void in the peripheral portion, and the inside of the filter cloth and the clean gas passage are provided in the void and the venturi pipe. It was communicated through.

【0012】[0012]

【作用】[Action]

濾布内と前記清浄ガス通路とを、空隙及びベンチュリ管内を通じて連通させた ことで、濾過作業時においては、濾布を通過した清浄ガスは、ベンチュリ管の他 に空隙をも通過して清浄ガス通路に流入することになり、従来のようにベンチュ リ管のみを通過するものに比べ通路が拡大される。また、払い落し作業時におい ても、清浄ガス通路内の気体はベンチュリ管及び空隙を通って濾布内に流入する ことになり、通気抵抗が大幅に減少し、払い落とし効率が向上する。 By connecting the inside of the filter cloth and the clean gas passage through the gap and the venturi pipe, during the filtering operation, the clean gas that has passed through the filter cloth passes through the gap as well as the venturi pipe and the clean gas. Since it flows into the passage, the passage is enlarged compared to the conventional one that only passes through the Venturi pipe. Further, even when the cleaning operation is performed, the gas in the clean gas passage will flow into the filter cloth through the venturi pipe and the void, so that the ventilation resistance is significantly reduced and the cleaning efficiency is improved.

【0013】[0013]

【実施例】【Example】

以下、本考案の一実施例を図面を参照して説明する。 An embodiment of the present invention will be described below with reference to the drawings.

【0014】 図1及び図2は本考案に係るバグフィルタ装置のベンチュリ管取付構造の概略 構成を示し、図3は濾過作業時の状態を示し、図4(a)は払い落し作業時の状 態を示し、図4(b)は払い落し作業時における濾布内の上部に作用する圧力分 布を示している。1 and 2 show a schematic structure of a venturi pipe mounting structure of a bag filter device according to the present invention, FIG. 3 shows a state during filtration work, and FIG. 4 (a) shows a state during removal work. FIG. 4 (b) shows the pressure distribution acting on the upper part of the filter cloth at the time of the scraping work.

【0015】 図1及び図2において、1はバグフィルタ装置内の濾過室の一部であり、複数 の濾布2を懸架する仕切板3によって、上部の清浄ガス通路4と区分されている 。1 and 2, reference numeral 1 denotes a part of a filter chamber in the bag filter device, which is separated from an upper clean gas passage 4 by a partition plate 3 suspending a plurality of filter cloths 2.

【0016】 濾布2は、濾過作業中の気体流圧力に耐えるためにその内部にリテーナ5が介 装されている。リテーナ5は、剛性材料で製作された複数の縦材51と、同じく 剛性材料で製作され前記縦材51を連結する環状材52とでかご状に構築されて いる。The filter cloth 2 has a retainer 5 interposed therein to withstand the gas flow pressure during the filtering operation. The retainer 5 is constructed in a cage shape by a plurality of vertical members 51 made of a rigid material and an annular member 52 which is also made of a rigid material and connects the vertical members 51.

【0017】 濾布2の上端は、可撓性を有するスナップリング6を介して折返した後、該折 返し部の先端を、スナップリング6の外伸力により仕切板3に設けられたカラー 31に圧着させることで、濾布2を濾過室1内に懸架している。The upper end of the filter cloth 2 is folded back via the snap ring 6 having flexibility, and the tip of the folded portion is provided with a collar 31 provided on the partition plate 3 by the extension force of the snap ring 6. The filter cloth 2 is suspended in the filtration chamber 1 by being pressure-bonded to.

【0018】 前記リテーナ5の上部中央には、ベンチュリ管7が固設されている。ベンチュ リ管7は、後述するパルスジェット空気91を誘導するためのもので、このベン チュリ管7の上端には、適数枚(本例では3枚)の支持板71が適宜間隔を隔て て放射状に延設されており、この支持板71を仕切板3に設けられた止め金具3 2とカラー31とで螺子部材33により挾持することで、ベンチュリ管7及びリ テーナ5を前記仕切板3の開口部に設けられている。A Venturi tube 7 is fixed to the center of the upper portion of the retainer 5. The venturi pipe 7 is for guiding a pulse jet air 91 described later, and an appropriate number (three in this example) of support plates 71 are spaced at appropriate intervals at the upper end of the venturi pipe 7. The support plate 71 is extended in a radial direction, and the support plate 71 is held by a screw member 33 between a stopper 32 and a collar 31 provided on the partition plate 3, so that the venturi pipe 7 and the retainer 5 are held by the partition plate 3. Is provided in the opening.

【0019】 このように間隔を有する支持板71によりベンチュリ管7を仕切板3の開口部 に設けることで、該ベンチュリ管7の周囲には空隙8が形成されることになる。By providing the Venturi tube 7 in the opening of the partition plate 3 with the support plate 71 having such a space, a void 8 is formed around the Venturi tube 7.

【0020】 また、ベンチュリ管7の上方の清浄ガス通路4には、ベンチュリ管7と対峙す る位置に、後述するパルスジェット空気91を噴射するためのノズル9が配設さ れている。Further, in the clean gas passage 4 above the venturi pipe 7, a nozzle 9 for injecting pulse jet air 91, which will be described later, is arranged at a position facing the venturi pipe 7.

【0021】 次に、上述のように構成された本考案に係るバグフィルタ装置のベンチュリ管 取付構造における濾過作業及び払い落し作業中の排ガスと清浄ガス及びパルスジ ェット空気の流れ等について説明する。Next, the flow of the exhaust gas, the clean gas, and the pulse jet air during the filtering work and the cleaning work in the venturi pipe mounting structure of the bag filter device according to the present invention configured as described above will be described.

【0022】 まず、濾過作業時には、図3に示すように、濾過室1に導入されたダスト及び 酸性有害ガス等を含む排ガス10は、予め中和用薬剤により濾布2の表面に形成 されているプレコート層21及び濾布2を通過する。First, at the time of filtration operation, as shown in FIG. 3, the exhaust gas 10 containing dust and acidic harmful gas introduced into the filtration chamber 1 is previously formed on the surface of the filter cloth 2 by a neutralizing agent. It passes through the precoat layer 21 and the filter cloth 2.

【0023】 その際、排ガス10に含有するダストは、プレコート層21の表面で濾過され 、堆積して粉じん層22となり、同じく含有する酸性有害ガスは、プレコート層 21の薬剤により中和されるため、プレコート層21を通過した後は清浄ガス1 1となり、濾布2とリテーナ5で構成された濾過体内を上昇して、ベンチュリ管 7及び空隙8を通過して清浄ガス通路4に入り、図示しない誘引通風機に吸引さ れて煙突から外部に排出される。At that time, the dust contained in the exhaust gas 10 is filtered on the surface of the precoat layer 21 and accumulated to form the dust layer 22, and the acidic harmful gas also contained therein is neutralized by the chemical agent in the precoat layer 21. After passing through the precoat layer 21, it becomes the clean gas 11, rises in the filter body composed of the filter cloth 2 and the retainer 5, passes through the venturi pipe 7 and the void 8 and enters the clean gas passage 4, and Not attracted to the draft fan and discharged from the chimney to the outside.

【0024】 このように、清浄ガス11は、ベンチュリ管7の他に空隙8をも通過するため 、従来のようにベンチュリ管7のみを通過するものに比べ通路が拡大され、清浄 ガス11の縮流及び拡散による圧力損失は殆どなくなり、誘引通風機の負担が軽 減される。As described above, the clean gas 11 passes through the void 8 as well as the venturi pipe 7, so that the passage is enlarged as compared with the conventional one that passes only the venturi pipe 7, and the clean gas 11 shrinks. The pressure loss due to flow and diffusion is almost eliminated, and the load on the induction fan is reduced.

【0025】 そして、上述の濾過作業を継続すると、堆積する粉じん層22が次第に成長し 、排ガス10の通気抵抗が増加して、図示しない誘引通風機の負担が増加するた め、粉じん層22の払い落しを行う。Then, when the above-described filtration work is continued, the dust layer 22 that accumulates gradually grows, the ventilation resistance of the exhaust gas 10 increases, and the load of the attracting fan (not shown) increases, so that the dust layer 22 of the dust layer 22 increases. Make a payment.

【0026】 払い落し作業は、図4(a)に示すように、、図示しない圧縮空気源からの高 圧空気をノズル9から短時間噴射する。このようにして噴射されたパルスジェッ ト空気91は、ベンチュリ管7内を通過して濾布2の先端まで到達し、その衝撃 により粉じん層22及びプレコート層21を濾布2から遊離させるとともに、清 浄ガス通路4内の清浄ガス11を2次流体として大量に濾布2内に誘引する。As shown in FIG. 4 (a), in the cleaning operation, high pressure air from a compressed air source (not shown) is jetted from the nozzle 9 for a short time. The pulse jet air 91 thus jetted passes through the venturi tube 7 and reaches the tip of the filter cloth 2, and the impact thereof releases the dust layer 22 and the precoat layer 21 from the filter cloth 2, and at the same time, cleans them. A large amount of the clean gas 11 in the clean gas passage 4 is attracted into the filter cloth 2 as a secondary fluid.

【0027】 この清浄ガス11の流れは、従来構造の如くベンチュリ管7内を収束されて貫 流するのではなく、空隙8をも通過するので、通気抵抗が少ない状態で濾布2内 に逆流して、遊離している粉じん層22及びプレコート層21を濾布2から効率 良く剥離させることができる。The flow of the clean gas 11 does not converge and flow through the Venturi tube 7 as in the conventional structure, but also passes through the voids 8 and therefore flows backward into the filter cloth 2 with a low ventilation resistance. Thus, the released dust layer 22 and the precoat layer 21 can be efficiently peeled from the filter cloth 2.

【0028】 この際の濾布2の上部における2次流体11による濾布2内面の圧力分布は、 図4(b)示す傾向となり、粉じん層22を満遍なく払い落し、濾過面積を有効 に利用できる。At this time, the pressure distribution on the inner surface of the filter cloth 2 due to the secondary fluid 11 in the upper part of the filter cloth 2 has a tendency shown in FIG. 4B, and the dust layer 22 is evenly removed, and the filtration area can be effectively used. .

【0029】 払い落し作業が終われば、濾布2上に新たにプレコート層21を形成させた後 、排ガス10を流通させることにより、通常の濾過作業を再開することができる 。When the cleaning operation is completed, a new precoat layer 21 is formed on the filter cloth 2 and then the exhaust gas 10 is circulated to restart the normal filtering operation.

【0030】 本例では、濾布2表面に形成されたプレコート層21で濾過及び中和作業を行 うように説明したが、プレコート層21を事前に形成させずに、中和用薬剤を排 ガス10中に連続噴射して、堆積する粉じん層で濾過及び中和作業を行ってもよ い。In this example, the precoat layer 21 formed on the surface of the filter cloth 2 has been described as performing the filtration and neutralization work, but the precoat layer 21 is not formed in advance and the neutralizing agent is discharged. It is also possible to continuously inject into the gas 10 and perform filtration and neutralization work on the accumulated dust layer.

【0031】 図5は、本考案に係るバグフィルタ装置のベンチュリ管取付構造の他の実施例 を示している。FIG. 5 shows another embodiment of the Venturi tube mounting structure of the bag filter device according to the present invention.

【0032】 ベンチュリ管取付構造は、リテーナ5の上部に止め金具35固設し、この止め 金具35を仕切板3の開口周縁上面に載置することで、リテーナ5の上端が清浄 ガス通路4内に突出するよう仕切板3よりも上方に配置し、このリテーナ5の上 部にベンチュリ管7を支持し、空隙8を更に拡大したものである。なお、他の構 成は前記実施例と同様であり、同部材には同符号を付し説明は省略する。In the Venturi tube mounting structure, the retainer 5 is fixed to the upper portion of the retainer 5, and the retainer 35 is placed on the upper surface of the opening peripheral edge of the partition plate 3, so that the upper end of the retainer 5 is inside the clean gas passage 4. It is arranged above the partition plate 3 so as to project to the above, the venturi pipe 7 is supported on the upper portion of the retainer 5, and the gap 8 is further enlarged. The other structure is the same as that of the above embodiment, and the same members are denoted by the same reference numerals and the description thereof is omitted.

【0033】 図6は、本考案に係るバグフィルタ装置のベンチュリ管取付構造のさらに他の 実施例を示しており、上記図5に示したものと同様、リテーナ5の上端が清浄ガ ス通路4内に突出するよう仕切板3よりも上方に配置してこのリテーナ5に固設 された止め金具35を螺子部材36で仕切板3に固定するとともに、このリテー ナ5の上部にベンチュリ管7を支持したものである。FIG. 6 shows still another embodiment of the Venturi tube mounting structure of the bag filter device according to the present invention, in which the upper end of the retainer 5 has the clean gas passage 4 as in the case shown in FIG. The stopper fitting 35 fixed to the retainer 5 and arranged above the partition plate 3 so as to project inward is fixed to the partition plate 3 with a screw member 36, and the venturi pipe 7 is attached to the upper portion of the retainer 5. I supported it.

【0034】 また、図5及び図6に示すベンチュリ管取付構造における濾過作業及び払い落 し作業中の排ガスと清浄ガス及びパルスジェット空気の流れ等については前述し た実施例と同様であり、説明は省略する。The flow of exhaust gas, clean gas, pulse jet air, etc. during the filtering work and the removing work in the Venturi tube mounting structure shown in FIGS. 5 and 6 are the same as those in the above-mentioned embodiment, and will be described. Is omitted.

【0035】 なお、ベンチュリ管7及びリテーナ5の仕切板3に対する高さを、図示しない 調整ネジ等により調節可能にしてもよい。The heights of the Venturi tube 7 and the retainer 5 with respect to the partition plate 3 may be adjustable by an adjusting screw or the like (not shown).

【0036】[0036]

【考案の効果】[Effect of device]

以上述べたように、本考案によれば、濾布内と前記清浄ガス通路とが、空隙及 びベンチュリ管内を通じて連通されたことで、濾過作業時においては、濾布を通 過した清浄ガスは、ベンチュリ管の他に空隙をも通過して清浄ガス通路に流入す ることになり、従来のようにベンチュリ管のみを通過するものに比べ通路が拡大 され、清浄ガスの縮流及び拡散による圧力損失は殆どなくなり、誘引通風機の負 担が軽減される。また、払い落し作業時においても、清浄ガス通路内の気体はベ ンチュリ管及び空隙を通って濾布内に逆流することになり、通気抵抗が大幅に減 少し、払い落とし効率が向上するとともに、ベンチュリ管の位置する濾布の上部 においても粉じん層を払い落とすことができ、濾過面積を有効に活用することが できる。 As described above, according to the present invention, since the inside of the filter cloth and the clean gas passage are communicated with each other through the gap and the venturi pipe, during the filtering operation, the clean gas passing through the filter cloth is prevented. In addition to the venturi pipe, the gas also passes through the voids and flows into the clean gas passage, and the passage is enlarged compared to the conventional one that passes only the venturi pipe, and the pressure due to the contraction and diffusion of the clean gas is increased. The loss is almost eliminated and the burden of the induced draft fan is reduced. In addition, even during the cleaning operation, the gas in the clean gas passage will flow back into the filter cloth through the venturi tube and the void, which significantly reduces the ventilation resistance and improves the cleaning efficiency. The dust layer can be wiped off even on the upper part of the filter cloth where the Venturi tube is located, and the filtration area can be effectively utilized.

【図面の簡単な説明】[Brief description of drawings]

【図1】本考案に係るバグフィルタ装置のベンチュリ管
取付構造の概略構成を示す断面図である。
FIG. 1 is a sectional view showing a schematic configuration of a Venturi tube mounting structure of a bag filter device according to the present invention.

【図2】本考案に係るバグフィルタ装置のベンチュリ管
取付構造の概略構成を示す平面図である。
FIG. 2 is a plan view showing a schematic configuration of a Venturi tube mounting structure of the bag filter device according to the present invention.

【図3】本考案に係るバグフィルタ装置のベンチュリ管
取付構造による濾過作業時の状態を示す説明図である。
FIG. 3 is an explanatory view showing a state of a bag filter device according to the present invention at the time of filtering work by the Venturi tube mounting structure.

【図4】図4(a)は本考案に係るバグフィルタ装置の
ベンチュリ管取付構造による払い落し作業時の状態を示
す説明図、図4(b)は払い落し作業時における濾布内
の上部に作用する圧力分布を示す図である。
FIG. 4 (a) is an explanatory view showing a state of the bag filter device according to the present invention at the time of removing work by the venturi pipe mounting structure, and FIG. 4 (b) is an upper part in the filter cloth at the time of removing work. It is a figure which shows the pressure distribution which acts on.

【図5】本考案に係るバグフィルタ装置のベンチュリ管
取付構造の他の実施例を示す断面図である。
FIG. 5 is a cross-sectional view showing another embodiment of the Venturi tube mounting structure of the bag filter device according to the present invention.

【図6】本考案に係るバグフィルタ装置のベンチュリ管
取付構造の他の実施例を示す断面図である。
FIG. 6 is a cross-sectional view showing another embodiment of the Venturi tube mounting structure of the bag filter device according to the present invention.

【図7】従来のバグフィルタ装置のベンチュリ管取付構
造における濾過作業時の状態を示す図である。
FIG. 7 is a diagram showing a state during a filtering operation in the venturi pipe mounting structure of the conventional bag filter device.

【図8】図8(a)は従来のバグフィルタ装置のベンチ
ュリ管取付構造における払い落し作業時の状態を示す
図、図8(b)は払い落し作業時における濾布内の上部
に作用する圧力分布を示す図である。
FIG. 8 (a) is a diagram showing a state of a venturi tube mounting structure of a conventional bag filter device during a scraping operation, and FIG. 8 (b) acts on an upper part of a filter cloth during the scraping operation. It is a figure which shows pressure distribution.

【符号の説明】[Explanation of symbols]

1 濾過室 2 濾布 3 仕切板 4 清浄ガス通路 7 ベンチュリ管 8 空隙 1 Filter Chamber 2 Filter Cloth 3 Partition Plate 4 Clean Gas Passage 7 Venturi Tube 8 Void

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 濾過室と清浄ガス通路とが濾布を有する
仕切板によって区分され、上記濾過室と清浄ガス通路と
が濾布及び濾布の上部に設けられたベンチュリ管を通じ
て連通されたバグフィルタ装置において、 前記ベンチュリ管は、その周辺部分に空隙を有して前記
仕切板に設けられ、前記濾布内と前記清浄ガス通路と
が、上記空隙及びベンチュリ管内を通じて連通されたこ
とを特徴とするバグフィルタ装置のベンチュリ管取付構
造。
1. A bag in which a filter chamber and a clean gas passage are separated by a partition plate having a filter cloth, and the filter chamber and the clean gas passage are communicated with each other through a filter cloth and a venturi pipe provided on the filter cloth. In the filter device, the venturi pipe is provided in the partition plate with a void in a peripheral portion thereof, and the inside of the filter cloth and the clean gas passage are communicated with each other through the void and the venturi pipe. Venturi tube mounting structure for bag filter device.
JP1993007117U 1993-02-25 1993-02-25 Venturi tube mounting structure of bag filter device Expired - Lifetime JP2528440Y2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1993007117U JP2528440Y2 (en) 1993-02-25 1993-02-25 Venturi tube mounting structure of bag filter device
KR1019930014697A KR940019343A (en) 1993-02-25 1993-07-30 Venturi tube attachment structure and filter cloth attachment structure of bag filter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1993007117U JP2528440Y2 (en) 1993-02-25 1993-02-25 Venturi tube mounting structure of bag filter device

Publications (2)

Publication Number Publication Date
JPH0664708U true JPH0664708U (en) 1994-09-13
JP2528440Y2 JP2528440Y2 (en) 1997-03-12

Family

ID=11657151

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1993007117U Expired - Lifetime JP2528440Y2 (en) 1993-02-25 1993-02-25 Venturi tube mounting structure of bag filter device

Country Status (2)

Country Link
JP (1) JP2528440Y2 (en)
KR (1) KR940019343A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002522194A (en) * 1998-08-07 2002-07-23 ドナルドソン カンパニー,インコーポレイティド Air filter assembly for filtration of air containing particulate matter
JP2018051542A (en) * 2016-09-30 2018-04-05 三機工業株式会社 Filter attachment structure for filtration type dust collector
JP2018051541A (en) * 2016-09-30 2018-04-05 三機工業株式会社 Filter attachment structure for filtration type dust collector
JP2020124697A (en) * 2019-02-06 2020-08-20 日本スピンドル製造株式会社 Method of replacing filter of dust collector, duct collector, and filter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0346830U (en) * 1989-09-14 1991-04-30
JPH0595619U (en) * 1992-05-29 1993-12-27 アマノ株式会社 Pulse jet dust collector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0346830U (en) * 1989-09-14 1991-04-30
JPH0595619U (en) * 1992-05-29 1993-12-27 アマノ株式会社 Pulse jet dust collector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002522194A (en) * 1998-08-07 2002-07-23 ドナルドソン カンパニー,インコーポレイティド Air filter assembly for filtration of air containing particulate matter
JP2018051542A (en) * 2016-09-30 2018-04-05 三機工業株式会社 Filter attachment structure for filtration type dust collector
JP2018051541A (en) * 2016-09-30 2018-04-05 三機工業株式会社 Filter attachment structure for filtration type dust collector
JP2020124697A (en) * 2019-02-06 2020-08-20 日本スピンドル製造株式会社 Method of replacing filter of dust collector, duct collector, and filter

Also Published As

Publication number Publication date
KR940019343A (en) 1994-09-14
JP2528440Y2 (en) 1997-03-12

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