JP4533676B2 - Filter device for pulse jet dust collector and method for producing filter cloth for filter device - Google Patents

Filter device for pulse jet dust collector and method for producing filter cloth for filter device Download PDF

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JP4533676B2
JP4533676B2 JP2004179436A JP2004179436A JP4533676B2 JP 4533676 B2 JP4533676 B2 JP 4533676B2 JP 2004179436 A JP2004179436 A JP 2004179436A JP 2004179436 A JP2004179436 A JP 2004179436A JP 4533676 B2 JP4533676 B2 JP 4533676B2
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filter cloth
filter
shape
cage
regular
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JP2006000756A (en
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哲一 鶴見
匠 瀬尾
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Amano Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04—Cleaning filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20—Shape of filtering material
    • B01D2275/205—Rectangular shape

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtering Materials (AREA)

Description

本発明は、集塵運転によってフイルタに付着したダストを、フイルタの内部に圧縮空気を吹き込むことによって払い落として除塵することができるパルスジェット式集塵機に用いて好適なフイルタ装置と、このフイルタ装置に使用する濾布の製造方法に関するものである。   The present invention provides a filter device suitable for use in a pulse jet dust collector capable of removing dust adhered to a filter by dust collection operation by blowing compressed air into the filter to remove the dust, and the filter device. The present invention relates to a method for producing a filter cloth to be used.

パルスジェット式集塵機に使用するフイルタに関しては、従来より、例えば、特許文献１に記載の「パルスジェット式集塵機用フイルタ」や、特許文献２に記載の「バグフイルタ装置」が存在する。   Conventionally, for a filter used in a pulse jet type dust collector, for example, a “pulse jet type dust collector filter” described in Patent Document 1 and a “bag filter device” described in Patent Document 2 exist.

特許文献１に記載のフイルタは、細長い縦材と横材等を用いて略円筒状のリテーナ（ケージ）を形成し、その外周に円筒状のフイルタを装着して構成した最も一般的なフイルタ装置であり、また、特許文献２には、リテーナの形状を前後の幅よりも左右の幅を広く形成し、且つ、平面から見たリテーナの形状が略小判形状、或いは、略楕円形状、略角形小判形状、又は、略矩形形状に形成されたバッグフイルタ装置が記載されている。
実開昭６３−１７３３２４号公報 特開昭６３−９１１１５号公報 The filter described in Patent Document 1 is the most common filter device in which a substantially cylindrical retainer (cage) is formed using elongated vertical members and cross members, and a cylindrical filter is mounted on the outer periphery thereof. Further, in Patent Document 2, the shape of the retainer is formed so that the left and right widths are wider than the front and rear widths, and the shape of the retainer as viewed from the plane is a substantially oval shape, a substantially oval shape, a substantially square shape A bag filter device formed in an oval shape or a substantially rectangular shape is described.
Japanese Utility Model Publication No. 63-173324 JP-A-63-91115

集塵機における濾過速度や濾布の通過風量は、集塵機ハウジングへの濾布（フイルタ）の収納本数や、濾布の総面積によって決まる。つまり、同じ濾過面積を有するフイルタであれば、より多くのフイルタが収納されることでその分だけ集塵性能も向上することになり、また、同じ収納本数であれば、より大きな濾過面積を有することが濾過性能を向上させる結果になる。   The filtration speed and the amount of air passing through the filter cloth in the dust collector are determined by the number of filter cloths (filters) stored in the dust collector housing and the total area of the filter cloth. In other words, if the filters have the same filtration area, dust collection performance will be improved by storing more filters, and if the number of storages is the same, the filter will have a larger filtration area. This results in improved filtration performance.

尚、フイルタ相互間の空間距離は所定の間隔を保つ必要があり、それを必要以上に狭くすると、高圧の逆洗空気を噴射してバッグフイルタの濾布に捕集したダスト粉塵を払い落とす際に、当該逆洗空気の噴射によって膨張した濾布が相互に接触し合って、濾布の先端方向への脈動現象、波動現象等が遮られたり、払い落とされた粉塵の落下スペースがなくなり、隣接するバッグフイルタ列の濾布に再び吸着されてしまう等の問題が生じるため、集塵機ハウジングへの濾布の収納本数はフイルタ形状によって自ずと制限されることになる。   In addition, it is necessary to keep a predetermined distance between the filters, and if this is narrowed more than necessary, high-pressure backwash air is injected and dust dust collected on the filter cloth of the bag filter is removed. In addition, the filter cloths expanded by the backwash air jet contact each other, and the pulsation phenomenon, wave phenomenon, etc. in the tip direction of the filter cloth are blocked, or there is no space for the dust to fall off, Since a problem such as being adsorbed again by the filter cloth of the adjacent bag filter row occurs, the number of filter cloths stored in the dust collector housing is naturally limited by the filter shape.

然るに、上記特許文献１に記載されているフイルタは、図１３（イ）において夫々符号１００で示すように全体が円筒形状に形成されているため、（ロ）に示すように集塵機ハウジングへのフイルタ１００の収納本数や収納効率に限界があり、従って、限られた集塵機ハウジング内でフイルタ１００の総面積を必要以上に増やすことができなかった。   However, the filter described in the above-mentioned Patent Document 1 is formed in a cylindrical shape as indicated by reference numeral 100 in FIG. 13 (a), so that the filter for the dust collector housing as shown in (b). There is a limit to the number of storages and storage efficiency of 100, and therefore the total area of the filter 100 cannot be increased more than necessary within the limited dust collector housing.

また、上記特許文献２に記載のバッグフイルタ装置は、上記特許文献１に記載の円筒型フイルタ１００（図１３参照）の問題点を解決するため、図１４（イ）に示すように、リテーナ１１１の形状を前後の幅よりも左右の幅を広小判形状、又は略矩形形状に構成したバッグフイルタ１１０を提供している。この様に改良されたフイルタ１１０によれば、従来の円筒形状のフイルタ１００に比べて、その外周長が等しい（濾過面積が等しい）バッグフイルタであれば、（ロ）に示すようにより多くの本数のフイルタ１１０を集塵機に収納でき、いわゆる集塵機ハウジングへのフイルタの収容効率を大幅に増加することができる利点を発揮することができる。   In addition, the bag filter device described in Patent Document 2 is provided with a retainer 111 as shown in FIG. 14A in order to solve the problems of the cylindrical filter 100 described in Patent Document 1 (see FIG. 13). A bag filter 110 is provided in which the left and right widths of the shape are wider or smaller than the front and rear widths, or a substantially rectangular shape. According to the filter 110 improved in this way, as compared with the conventional cylindrical filter 100, if the bag filter has the same outer peripheral length (the filtration area is equal), the number of the filters is larger as shown in (b). The filter 110 can be stored in the dust collector, and the advantage that the efficiency of storing the filter in the so-called dust collector housing can be greatly increased can be exhibited.

しかしながら、上記のバッグフイルタ１１０は、パルスエアーの取り込み口が細長く形成されていることから、図１４（ハ）に示すようにブローチューブ１１２から噴射されたエアーが全量フイルタ１１０の内部に取り込まれずに、無駄に放出されるエアーが生ずる問題がある。更に、ブローチューブ１１２からフイルタ１１０への到達距離が異なる（断面が楕円形であること）部分があることから、パルスエアーをフイルタ１１０の内部に満遍なく取り込むことが出来ず、除塵むらが生じたりする問題があった。   However, since the bag filter 110 has an elongated intake port for pulsed air, the air jetted from the blow tube 112 is not taken into the entire filter 110 as shown in FIG. There is a problem that wasteful air is generated. Furthermore, since there is a portion where the reach distance from the blow tube 112 to the filter 110 is different (the cross section is elliptical), the pulsed air cannot be uniformly taken into the filter 110, and uneven dust removal may occur. There was a problem.

また、リテーナ１１１の平面形状が横長く形成されている関係上、吸引時や除塵時において長辺部へ大きな力が作用して、リテーナ１１１の損傷の原因にもなるため、その弱点をカバーするためにリテーナ１１１の強度をあげるよう設計上の配慮が必要とされ、その結果、リテーナ１１１の重量や価格のアップにつながる問題もあった。   Moreover, since the planar shape of the retainer 111 is formed to be horizontally long, a large force acts on the long side part during suction or dust removal, which may cause damage to the retainer 111, so that the weak point is covered. Therefore, design considerations are required to increase the strength of the retainer 111. As a result, there is a problem that leads to an increase in weight and price of the retainer 111.

そこで本発明の技術的課題は、集塵機ハウジングへのフイルタの収納本数、及び、濾布の総面積を増やすことにより、フイルタの集塵機ハウジングへの収容効率を改善すること、パルスエアーのフイルタ内への取り込みを満遍なく有効に作用させること、フイルタの構造上の弱点を改善すること、吸引/除塵時における濾布の収縮／膨張動作時に、隣接するフイルタの濾布に触れたりすることが無いようにすること、更に濾布の製作を容易にすることを可能にしたパルスジェット式集塵機用フイルタ装置と、このフイルタ装置に使用する濾布の製造方法を提供することである。   Therefore, the technical problem of the present invention is to improve the efficiency of storing the filter in the dust collector housing by increasing the number of filters stored in the dust collector housing and the total area of the filter cloth, and the pulse air into the filter. Make the uptake work evenly and effectively, improve the weakness of the filter structure, and avoid touching the filter cloth of the adjacent filter when the filter cloth contracts / expands during suction / dust removal. Another object of the present invention is to provide a filter device for a pulse jet dust collector that makes it easy to manufacture the filter cloth, and a method for manufacturing the filter cloth used in the filter device.

（１） 上記の技術的課題を解決するために、本発明の請求項１に係るパルスジェット式集塵機用フイルタ装置は、ケージの周囲に装着した有底で筒状を成す濾布の内部に圧縮空気を吹き込むことにより、集塵によって濾布に付着したダストを払い落として除塵することができるように構成したパルスジェット式集塵機において、上記のケージを、複数本の細長い縦材と横材を用いて全体が縦長で、平面視形状が正三角形、正四角形、正五角形、或いは、正六角形のいずれかの略多角形状を成し、且つ、該略多角形状の各頂点部分の夫々には上記の縦材を配した構成と成し、上記の濾布が、平面視形状を上記ケージと同じ正三角形、正四角形、正五角形、或いは、正六角形のいずれかの略多角形状の筒状に形成され、且つ、この濾布の周囲に複数本のバンドを上下長手方向に間隔をあけて巻き付けて、上記略多角形状の各頂点部分で、上記濾布と各バンドとを固着するように構成する一方、上記濾布における上記略多角形状の各辺の長さを、上記巻き付けるバンドに比較して長く造ることにより、上記略多角形状の各頂点部分で濾布とバンドとを固着する際に、各頂点部分の間で濾布に夫々弛み部を設けた状態にして固着したことを特徴としている。 (1) In order to solve the above technical problem, a filter device for a pulse jet dust collector according to claim 1 of the present invention is compressed inside a filter cloth having a bottom and a cylindrical shape mounted around a cage. In the pulse jet type dust collector configured to blow off air and remove dust adhering to the filter cloth by dust collection, the cage is composed of a plurality of elongated vertical members and cross members. whole Te is a vertically long, the plan view shape is an equilateral triangle, square, pentagon, or to forming either a substantially polygonal shape of regular hexagon, and, for each vertex portion of the symbolic polygonal each in the above forms a structure which arranged longitudinal member, said filter cloth is the same equilateral triangle, square plan view shape with the cage, pentagonal, or formed in a cylindrical or a substantially polygonal shape of regular hexagon , and, double around the filter cloth Wound at intervals of several bands in the vertical longitudinal direction, each apex portion of the substantially polygonal shape, one configured to fix the said filter cloth and the band, the substantially polygonal shape of the filter cloth By making the length of each side longer than that of the band to be wound, when fixing the filter cloth and the band at each vertex portion of the substantially polygonal shape, each of the vertex portions is respectively attached to the filter cloth. It is characterized by being fixed in a state where a slack portion is provided .

（２） また、本発明の請求項２に係るパルスジェット式集塵機用フイルタ装置は、前記ケージのうち、平面視形状が正三角形を成すケージを除く他の正四角形、正五角形、或いは、正六角形のケージを構成する各縦材のうち、少なくとも隣接する縦材を除く他の縦材同士の間に、複数本の梁用横材をその中間部で互いに交差するように掛け渡して取付けたことを特徴としている。 ( 2 ) Further, in the filter device for a pulse jet dust collector according to claim 2 of the present invention, among the cages, other regular squares, regular pentagons, or regular hexagons excluding a cage whose shape in plan view forms a regular triangle. Among the vertical members that make up the cage , at least the other vertical members excluding the adjacent vertical members were installed so as to cross over each other so that they crossed each other at the intermediate part. It is characterized by.

（３） また、本発明の請求項３に係るパルスジェット式集塵機用フイルタ装置は、各縦材の間に架設する各梁用横材の交差点部分を囲むように、該横材に対して補強用のリング材を取付けたことを特徴としている。 ( 3 ) Further, the filter device for a pulse jet dust collector according to claim 3 of the present invention reinforces the cross member so as to surround the crossing portion of the cross members for the beams installed between the vertical members. It is characterized by the attachment of a ring material.

（４） また、本発明の請求項４に係るパルスジェット式集塵機用フイルタ装置は、隣接する各縦材の間に設けた横材を、ケージの内側に向けて湾曲形成したことを特徴としている。 ( 4 ) In addition, the filter device for a pulse jet dust collector according to claim 4 of the present invention is characterized in that a cross member provided between adjacent vertical members is curved toward the inside of the cage. .

（５） また、本発明の請求項５に係るフイルタ装置用濾布の製造方法は、平坦な濾布材の表面に複数本のバンドを上下に間隔をあけて並べて配設し、これ等各バンドの長手方向に間隔をあけた複数箇所を、上記濾布材の表面に縫い止め又は接着固定するステップと、上記濾布材の両端縁同士を縫製又は接着固定して、全体を略円筒状の濾布と成すステップと、上記濾布材に間隔をあけて複数箇所縫い止め又は接着固定した上記各バンドの中間部分を短く調整して、濾布をその平面視形状が各辺ごとに弛み部を設けた正三角形、正四角形、正五角形、或いは、正六角形のいずれかの略多角形状の筒状体に成形するステップと、上記筒状体に成形した濾布の一端口を塞いで、全体を略多角形状の袋体に成形するステップと、から成ることを特徴としている。 ( 5 ) Moreover, the manufacturing method of the filter cloth for filter apparatuses which concerns on Claim 5 of this invention arrange | positions several bands on the surface of a flat filter cloth material at intervals up and down, these each A plurality of locations spaced in the longitudinal direction of the band are sewn or bonded and fixed to the surface of the filter cloth material, and both ends of the filter cloth material are sewn or bonded and fixed, and the whole is substantially cylindrical. a step of forming a filter cloth, by adjusting the intermediate portion of the plurality of locations sewing stop or adhesive fixed above each band shorter intervals to the filter cloth material, slack for each of the filter cloth is a plan view shape each side equilateral triangle having a section, square, pentagonal, or the steps of forming a substantially polygonal shape of the cylindrical body of any of the regular hexagon, closes one end opening of the filter cloth molded into the cylindrical body And forming the whole into a substantially polygonal bag body. It is.

（６） 更にまた、本発明の請求項６に係るフイルタ装置用濾布の製造方法は、濾布を前記略多角形の筒状体に成形するステップとして、平坦な濾布材の表面に上下に間隔をあけて並べて取付ける複数本のバンドの長さを、濾布材の横幅よりも予め短く形成して、これ等各バンドの長手方向に間隔をあけた複数箇所を、夫々の間隔毎に濾布材側に弛み部を設けながら濾布材の表面に縫い止め又は接着固定した後、濾布材の両端縁同士を縫製又は接着固定するステップを用いることを特徴としている。 (6) Furthermore, the manufacturing method of the filter cloth for filter apparatus according to claim 6 of the present invention, a step of molding the filter cloth to the cylindrical body of the substantially polygonal, vertical to the surface of the flat filter cloth material The length of a plurality of bands to be mounted side by side with a space between them is formed in advance shorter than the lateral width of the filter cloth material, and a plurality of locations spaced in the longitudinal direction of each of these bands are provided for each space. It is characterized by using a step of sewing or adhesively fixing both end edges of the filter cloth material after being sewn or bonded and fixed to the surface of the filter cloth material while providing a slack portion on the filter cloth material side.

上記（１）で述べた請求項１に係る手段によれば、フイルター装置（ケージと濾布で構成される）の形状をその平面視形状を正三角形、正四角形、正五角形、或いは、正六角形のいずれかの略多角形状とし、該濾布の周囲にバンドを巻き付けて、上記濾布の多角形の各頂点部分において、濾布とバンドとを固着したので、濾布をケージに組み付けした状態でダスト吸引動作を行うと、頂点部以外の濾布の各面はフイルタ内に引き寄せられ、フイルタの平断面が略星型形状になり、各面にダストが捕集される。また、濾布に捕集堆積したダストを除塵する際には、濾布の内部に圧縮空気を噴射すると、その噴射された圧縮空気の力により濾布の多角形の各面にはそれぞれ均一な力が作用し、各面は外側に向けて膨張し、その時の衝撃でダストが払い落とすことができる。 According to the means according to claim 1 described in the above (1), the shape of the filter device (consisting of a cage and a filter cloth) is changed to a regular triangle, a regular tetragon, a regular pentagon, or a regular hexagon. state of either a substantially polygonal shape, by winding a band around a filtrate fabric, at each apex portion of a polygon of the filter cloth, since the fixing the filter cloth and band, which was assembled with filter cloth to cage When the dust suction operation is performed, each surface of the filter cloth other than the apex portion is drawn into the filter, the flat cross section of the filter becomes a substantially star shape, and dust is collected on each surface. In addition, when removing dust collected and accumulated on the filter cloth, if compressed air is sprayed into the filter cloth, the surface of the polygon of the filter cloth is uniformly distributed by the force of the injected compressed air. A force acts, each surface expands outward, and dust can be removed by impact at that time.

更に上記（１）で述べた請求項１に係る手段によれば、多角形を成す濾布の各頂点がバンドで固着されている関係上、多角形の各辺に相当する各濾布面には常に均等な力が作用するように仕組まれている。つまり、逆にバンドによる濾布の頂点部が固定されていない場合は、濾布のいずれかの面に偏った空気圧力が作用すると、その圧力によりその部分の濾布が他の面より収縮して異常に内部に引き込まれたり、逆に圧力の掛かった方向に過大に膨張してしまい、その結果、他のフイルタの濾布に触れたり、他の濾布の正常な作用を阻害して、除塵作用が十分に行われないことが生じることになる。   Further, according to the means according to claim 1 described in the above (1), each vertex of the filter cloth forming the polygon is fixed by a band, and therefore, on each filter cloth surface corresponding to each side of the polygon. Is always designed to work with equal force. In other words, if the top of the filter cloth is not fixed by the band, if a biased air pressure is applied to either side of the filter cloth, that part of the filter cloth shrinks from the other side. It is drawn into the inside abnormally, or conversely, it expands excessively in the direction of pressure, and as a result, it touches the filter cloth of other filters or disturbs the normal action of other filter cloths, This may result in insufficient dust removal.

また、上記（１）で述べた請求項１に係る手段によれば、フイルタの平面視形状を、上記の正三角形、正四角形、正五角形、或いは、正六角形のいずれかの略多角形状としたから、除塵時における除塵エアーを取り入れる際に、その断面形状を例えば長方形等の形状にした場合に比べて採り入れやすく、無駄なエアーを消費することなく効率良く除塵することができる。 Further, according to the means according to claim 1 described in the above (1), the planar view shape of the filter is approximately polygonal shape of any one of the regular triangle, regular square, regular pentagon, or regular hexagon . Therefore, when taking in the dust-removing air during dust removal, it is easier to adopt the cross-sectional shape than a shape such as a rectangle, and dust can be efficiently removed without consuming unnecessary air.

加えて、上記（１）で述べた請求項１に係る手段によれば、濾布における各多角形の各辺の長さを、捲着したバンドに比較して長くすることで弛み部を設けたので、フイルタの吸引時には、ケージの複数本の縦材によって形成される多角形の頂点を基点に、上記の濾布の弛み部分がそれぞれ上記各縦材の間においてフイルタの内方向に吸引されて、濾布の断面形状を全体的に略星形を成すことができ、その結果、濾布面積を大きくすることができるため、濾布の収納効率を増大することを可能にする。 In addition, according to the means according to claim 1 described in the above (1), the length of each side of each polygon in the filter cloth, the slack portion is provided by longer than the Mekuchaku bands and so, at the time of suction of the filter, the base vertices of a polygon formed by a plurality of longitudinal members of the cage, the inner direction of the filter between the filter cloth loose portions described above, respectively it each stringer By being sucked, the cross-sectional shape of the filter cloth can be made substantially star-shaped as a whole. As a result, the area of the filter cloth can be increased, so that the storage efficiency of the filter cloth can be increased.

上記（２）で述べた請求項２に係る手段によれば、平面視形状が正三角形を成すケージを除く他のケージでは、多角形の内側を横切って各頂点同士を繋ぐように複数本の梁用横材を架設したため、より少ない材料で強度性に優れたケージを提供することができる。 According to the measures according to claim 2 as described above (2), the plan view shape in other cages except the cage forms a regular triangle, a plurality of such across the inside of the polygon connecting respective apexes Since the cross member for the beam is installed, it is possible to provide a cage with less material and excellent strength.

上記（３）で述べた請求項３に係る手段によれば、上記梁用横材の架設によって高められたケージの強度性を、リング材の取付けによって更に高めることができ、また、フイルタの吸引時には、フイルタの内方向に吸引された濾布が上記リング材に当たってその引き込みが制止されるため、濾布の内方向への引き込み過ぎを防止して、濾布の過剰な変形を防止することができると共に、内部に圧縮空気が吹き込まれた時は、外側への膨張を速やかに行って、ダストの払い落としを効果的に行うことができる。 According to the measures according to claim 3 mentioned above (3), the strength of the cage increased by the erection of the crosspieces for the beam, can be further enhanced by the attachment of the ring member, The suction of the filter Sometimes, the filter cloth sucked inward of the filter hits the ring material and is prevented from being pulled in, so that the filter cloth is prevented from being pulled too much inward and excessive deformation of the filter cloth can be prevented. In addition, when compressed air is blown into the inside, the outside can be rapidly expanded to effectively remove dust.

上記（４）で述べた請求項４に係る手段によれば、フイルタの吸引時に、フイルタの内方向に吸引された濾布が、内側に向けて湾曲形成された横材に当たってその引き込みが制止され、断面略星形状に支持されるため、濾布面に対してダストを効率良く捕集させることができると共に、濾布の引き込み過ぎによる過剰な変形を防止し、且つ、圧縮空気の吹き込みによる外側への膨張も速やかに行って、ダストの払い落としを効果的に行うことを可能にする。 According to the measures according to claim 4 as described above (4), when the suction of the filter, filter cloth sucked inward of the filter is, the pull-in is restrained when crossmember which is curved toward the inside Since the cross-section is supported in a substantially star shape, it is possible to efficiently collect dust on the filter cloth surface, prevent excessive deformation due to excessive pulling of the filter cloth, and the outside by blowing compressed air It is possible to expedite the dust quickly and effectively remove dust.

上記（５）と（６）で述べた請求項５と６に係る手段によれば、フイルタ装置の濾布を成形するに当たって、通常の平坦な繊維材（濾布材）にバンドを縫い付け、その後、両端を筒状に縫い合わせて底部を形成すれば完成するものであるから、比較的簡単な工程で、断面形状が略星形を成し、濾布面積が大きな濾布を製造することができる。 According to the means according to claims 5 and 6 described in the above ( 5 ) and ( 6 ), in forming the filter cloth of the filter device, a band is sewn to a normal flat fiber material (filter cloth material), After that, the bottom part is formed by sewing both ends into a cylindrical shape, so that a filter cloth having a substantially star shape and a large filter cloth area can be manufactured by a relatively simple process. it can.

以上述べた次第で、本発明に係るパルスジェット式集塵機用フイルタ装置及びフイルタ装置用濾布の製造方法によれば、集塵機ハウジングへの濾布の収納本数、及び、濾布の総面積を増やすことができるため、バッグフイルタの集塵機ハウジングへの収容効率を改善することができる。また、パルスエアーのフイルタ内への取り込みを満遍なく有効に作用させることができるため、優れた除塵作用を発揮することができると共に、フイルタの構造上の弱点を改善して、吸引／除塵時における濾布の収縮／膨張動作時に隣接するフイルタの濾布に触れたりすることが無いようにしたため、集塵作用と除塵作用を効率良く行うことができ、更に、濾布の製作を容易にして、比較的低コストにて高性能のフイルタ装置を提供することができる。   As described above, according to the filter device for the pulse jet type dust collector and the filter cloth manufacturing method according to the present invention, the number of filter cloths stored in the dust collector housing and the total area of the filter cloths are increased. Therefore, the accommodation efficiency of the bag filter in the dust collector housing can be improved. In addition, since the intake of pulsed air into the filter can be made to work evenly and effectively, it is possible to exert an excellent dust removing action and improve the weakness of the structure of the filter so that it can be filtered during suction / dust removal. Since the filter cloth of the adjacent filter is not touched during the shrinking / expanding operation of the cloth, the dust collecting action and the dust removing action can be efficiently performed, and the filter cloth can be easily manufactured and compared. A high-performance filter device can be provided at a low cost.

以下に、上述した本発明に係るパルスジェット式集塵機用フイルタ装置及びフイルタ装置用濾布の製造方法の実施の形態を図面と共に説明すると、図１は符号１０で全体的に示した本発明に係るフイルタ装置をパルスジェット式集塵機に実施した場合の要部の正断面図であって、図中、１は集塵機ハウジング（図示省略）の内部を清浄室と集塵室の上下２室に区画する仕切板、１Ｈはこの仕切板１に設けた除塵用パルスエアーの吹込穴（実際には複数の吹込穴１Ｈが並設されている）で、この吹込穴１Ｈはフイルタ装置１０によってダストが捕集された後の浄化空気の通気穴を兼ねている。   The embodiment of the filter device for a pulse jet type dust collector and the filter cloth manufacturing method for the filter device according to the present invention will be described below with reference to the drawings. FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front sectional view of a main part when the filter device is applied to a pulse jet dust collector. In the figure, 1 is a partition that divides the interior of a dust collector housing (not shown) into two upper and lower chambers, a clean chamber and a dust chamber. The plate 1H is a dust removal pulse air blowing hole provided in the partition plate 1 (actually, a plurality of blowing holes 1H are arranged in parallel), and dust is collected by the filtering device 10 in this blowing hole 1H. It also serves as a purified air ventilation hole.

２は、各吹込穴１Ｈごとに位置を合わせて仕切板１の底面に吊り下げ状態に取付けたベンチュリー管で、２Ａは下方に向けて開口したパルスエアーの噴射口、２Ｂはパルスエアーの吹込口、２Ｋはベンチュリー管２を仕切板１の底面に溶接等によって固定する取付部、２Ｔはベンチュリー管２の周囲を囲むように折返し形成した折返し部を示し、フイルタ装置１０を構成するケージ３０は、この折返し部２Ｔに吊り下げた状態に取付けられることにより、仕切板１の底面に吊り下げ状態に取付けられる仕組みに成っている。   Reference numeral 2 denotes a venturi tube which is positioned in a suspended state on the bottom surface of the partition plate 1 in alignment with each blowing hole 1H, 2A is a pulse air injection port opened downward, and 2B is a pulse air injection port Reference numeral 2K denotes a mounting portion for fixing the venturi tube 2 to the bottom surface of the partition plate 1 by welding or the like, 2T denotes a folded portion formed so as to surround the periphery of the venturi tube 2, and the cage 30 constituting the filter device 10 includes: By being attached to the folded portion 2T in a suspended state, it is configured to be attached to the bottom surface of the partition plate 1 in a suspended state.

符号３０で全体的に示した上記のケージは、金属や硬質の合成樹脂材等を用いて造った複数本の細長い縦材３１…、及び、複数本の横材３２…とによって、全体が縦長で、且つ、平面視形状（平断面形状）が三角形、四角形、五角形、或いは、六角形の略正多角形状を成す籠型に形成されていて、略正多角形状の各頂点部分の夫々に上記の各縦材３１…を配した構造に造られている。   The cage generally indicated by reference numeral 30 is vertically elongated by a plurality of elongate vertical members 31 and a plurality of cross members 32 made of metal, hard synthetic resin material, or the like. In addition, the shape in plan view (plane cross-sectional shape) is formed in a bowl shape that forms a substantially regular polygonal shape of a triangle, a quadrangle, a pentagon, or a hexagon, and each of the apexes of the substantially regular polygonal shape The vertical members 31 are arranged in a structure.

図１と図２に示したケージ３０は、４本の縦材３１…と、これ等４本の縦材３１…が正四角形の各頂点部分の夫々に配置されるように、縦材３１…に対して上下に間隔をあけて多段式に取付けた複数本の横材３２…とによって、全体が図６（ロ）に示すように平面視形状が正四角形の籠型に形成されている。   The cage 30 shown in FIG. 1 and FIG. 2 has four longitudinal members 31... And these four longitudinal members 31... Are arranged at the respective apexes of a regular square. As shown in FIG. 6 (b), the overall shape is formed in a square shape having a regular tetragonal shape, as shown in FIG. 6 (b).

また、各横材３２…としては、図２や図６（ロ）に示すように全体を角型リング状に造ったものと、図１の断面図やその斜視図に示すように、各横材３２を各縦材３１…の間に架設状態に溶接して構成したものとが存在し、更に、最上段の横材３２の一部又は複数部には、最上段の横材３２を上記ベンチュリー管２の折り返し部２Ｔに設けた係合溝に対し弾性的に係合して、ケージ３０の全体を上記の折り返し部２Ｔに対して吊り下げ状態に取付けたり、或いは、この取付けを自由に外したりすることができるように、切欠部３２Ａ…が設けられている。   Further, as each cross member 32..., As shown in FIG. 2 and FIG. 6 (b), the entire cross member is formed into a square ring shape, and as shown in the cross-sectional view and perspective view of FIG. There is a structure in which the material 32 is welded between the longitudinal members 31 in a erected state, and the uppermost lateral member 32 is provided on a part or a plurality of parts of the uppermost lateral member 32. The cage 30 is elastically engaged with the engagement groove provided in the folded portion 2T of the venturi tube 2, and the entire cage 30 is attached to the folded portion 2T in a suspended state, or the attachment can be freely performed. Notches 32A are provided so that they can be removed.

更に図１において、符号２０で全体的に示したのは、平面視形状（平断面形状）を上記のケージ３０と同じ略正多角形状の筒状で、且つ、有底の袋状に造った濾布であって、この濾布２０は、上記 ベンチュリー管２の折り返し部２Ｔに吊り下げたケージ３０の外側に下から嵌装すると共に、その上端縁を折り返し、この折り返し縁を締付ネジ４によって上記仕切板１の底面に取付けたフイルタ押え板３とパッキン材５の間に挟み込んだ後、 締付ネジ４を締付けることにより、内部にケージ３０を収めた状態で仕切板１の底面に吊下げ状態に取付けられ、また、上記締付ネジ４を外すことによって、その取付けを自由に外すことができるように構成されている。   Further, in FIG. 1, generally indicated by reference numeral 20 is a planar view shape (planar cross-sectional shape) that is a substantially regular polygonal cylindrical shape similar to the cage 30 described above, and has a bottomed bag shape. The filter cloth 20 is fitted from the bottom to the outside of the cage 30 suspended on the folded portion 2T of the venturi tube 2, and the upper end edge of the filter cloth 20 is folded back. The filter retainer plate 3 attached to the bottom surface of the partition plate 1 is sandwiched between the packing material 5 and then tightened with the tightening screw 4 so that the cage 30 is housed inside and suspended from the bottom surface of the partition plate 1. It is attached in a lowered state, and is configured so that it can be freely removed by removing the tightening screw 4.

更に図中、６は濾布２０に付着したダストを払い落とす除塵運転時に、圧縮エアー（パルスエアー）を上記の吹込穴１Ｈ及びベンチュリー管２を通して濾布２０の内部に吹き込むブローチューブ、５０は上記濾布２０の周面部に巻き付け状態に取付けたバンドを示す。このバンド５０は、上記パルスエアーの噴射による除塵運転時に、濾布２０が必要以上に外方に脹らんだり、図９に示すように不規則に脹らむことを防止するためのものであって、実際には複数本のバンド５０…が、濾布２０の周面に対して長手方向に間隔をあけて巻き付け状態に取付けられている。   Further, in the figure, 6 is a blow tube that blows compressed air (pulsed air) into the inside of the filter cloth 20 through the blow hole 1H and the venturi pipe 2 during the dust removal operation in which dust attached to the filter cloth 20 is removed. The band attached to the surrounding surface part of the filter cloth 20 in the winding state is shown. This band 50 is for preventing the filter cloth 20 from expanding more than necessary outwards during the dust removal operation by the pulse air injection, or irregularly expanding as shown in FIG. Actually, a plurality of bands 50 are attached to the peripheral surface of the filter cloth 20 in a wound state at intervals in the longitudinal direction.

以上の如く構成した本発明に係るフイルタ装置によれば、ブロアー（図示省略）の運転による吸引作用が仕切板１の上側に設けた清浄室に及ぶと、この吸引作用が上述した吹込穴１Ｈ、ベンチュリー管２及び濾布２０を通してフイルタ装置１０を吊下げた集塵室に及ぶため、ダクト等を介して含塵空気を集塵室に吸い込んで、含塵空気中のダストを濾布２０に捕集、分離すると共に、ダストが捕集、分離された浄化空気をベンチュリー管２、吹込穴１Ｈ、清浄室を通して外部に排出することができる。また、濾布２０に付着したダストを払い落とす除塵運転に際しては、ブローチューブ６よりパルスエアーをベンチュリー管２を通して濾布２０の内部に吹き込むことにより、濾布２０を外方に脹らませ、その衝撃によってダストを濾布２０より払い落として下側のダストバケット（図示省略）に回収することができる。   According to the filter device according to the present invention configured as described above, when the suction action by the operation of the blower (not shown) reaches the clean chamber provided on the upper side of the partition plate 1, this suction action is the above-described blow hole 1H, In order to reach the dust collection chamber in which the filter device 10 is suspended through the venturi tube 2 and the filter cloth 20, the dust-containing air is sucked into the dust collection chamber through a duct or the like, and the dust in the dust-containing air is captured by the filter cloth 20. While collecting and separating, the purified air from which dust has been collected and separated can be discharged to the outside through the venturi tube 2, the blow hole 1H, and the clean chamber. Further, in the dust removal operation in which dust attached to the filter cloth 20 is removed, pulse air is blown from the blow tube 6 through the venturi pipe 2 into the filter cloth 20 to expand the filter cloth 20 outward. Dust can be removed from the filter cloth 20 by impact and collected in a lower dust bucket (not shown).

次に、上述したケージ３０の他の実施例の構成と、濾布２０を縫製する製造方法に関して、夫々図面を参照しながら説明する。   Next, a configuration of another embodiment of the cage 30 described above and a manufacturing method for sewing the filter cloth 20 will be described with reference to the drawings.

図３は上述した濾布２０とケージ３０を分解して示した斜視図であって、この図面に記載されている平面視形状が正四角形状を成すケージ３０は、計４本の縦材３１…に対して、図２並びに図６（ロ）に示した全体が略角型リング状に造られた横材３２…を上下に間隔をあけて取付けると共に、これ等横材３２…の間に位置するように、対向する縦材３１…の間に複数本の梁用横材３３…をその中間部で互いに十字状に交差するように架設した構成に成っていて、これは前記請求項３に記載のケージの実施例を示したものである。尚、図中３４はケージ３０の底板を示す。   FIG. 3 is an exploded perspective view of the filter cloth 20 and the cage 30 described above, and the cage 30 having a square shape in plan view described in this drawing includes four vertical members 31 in total. 2 and FIG. 6 (b), the cross members 32, which are formed in a substantially square ring shape, are attached at intervals in the vertical direction, and between these cross members 32 ... A plurality of beam cross members 33... Are arranged between the opposing vertical members 31. The example of the cage described in 1 is shown. In the figure, reference numeral 34 denotes a bottom plate of the cage 30.

また、図３に示した濾布２０において、２０Ａは開口された上端口、２０Ｂは底面に縫い付けた底板、５１…は正四角形に形成した濾布２０の各角部と、濾布２０に巻き付けた各バンド５０…の当該角部とを一体に縫い止め又は接着した固定部であって、各バンド５０はこの固定部５１…によって濾布２０に対する取付位置が固定化されて、濾布２０がパルスエアーの吹き込みによって脹らんだ時の取付位置のズレを防止することができる。また、２０Ｓ…は上記各バンド５０における隣接する各固定部５１…の中間部分に夫々生じさせた濾布２０の弛み部であって、この弛み部２０Ｓの存在により、集塵運転による吸引作用が濾布２０に及んだ時に、当該弛み部２０Ｓの部分がひだ状に変形して、濾布２０の平面視形状が断面略星形を呈する仕組みに成っている。 Further, in the filter cloth 20 shown in FIG. 3, 20A is an open upper end, 20B is a bottom plate sewn on the bottom surface, 51... Each corner of the filter cloth 20 formed in a regular square, Each band 50 is a fixed portion obtained by integrally sewing or adhering the corner portions of the bands 50... To each of the bands 50. The mounting positions of the bands 50 are fixed to the filter cloth 20 by the fixed portions 51. The displacement of the mounting position when the bulge is inflated by the blowing of pulse air can be prevented. Further, 20S is a slack portion of the filter cloth 20 generated at each intermediate portion of the adjacent fixing portions 51 in each band 50, and due to the presence of the slack portion 20S, the suction action by the dust collecting operation is provided. When the filter cloth 20 is reached, the slack portion 20S is deformed into a pleat shape, and the planar view shape of the filter cloth 20 has a substantially star-shaped cross section.

次に、図４は上述したケージ３０の他の実施例を示したものであって、（イ）は前記請求項４に記載のケージ３０の構成を示し、（ロ）は（イ）の応用例を示し、（ハ）は（ロ）に示したケージ３０と濾布２０の関連を示した説明図である。   Next, FIG. 4 shows another embodiment of the cage 30 described above, wherein (a) shows the configuration of the cage 30 according to claim 4, and (b) shows the application of (a). An example is shown, and (C) is an explanatory diagram showing the relationship between the cage 30 and the filter cloth 20 shown in (B).

即ち、図４（イ）に示したケージ３０は、正四角形の各角部に配した計４本の縦材３１…に対して、梁用横材３３…を十字状に交差した状態で、且つ、上下に間隔をあけて多段式（図面では４段式）に取付けると共に、これ等各十字状に交差した部分を中心にしてその周囲を囲むように、梁用横材３３…に対して補強用のリング材３５を取付けて、これ等各梁用横材３３…とリング材３５…とによって、ケージ３０の平面視形状が正四角形状に支持される仕組みに成っている。尚、図中３２はケージ３０の下端部に取付けた角形リング構造の横材、３４はこの横材３２に取付けた底板を示す。   That is, the cage 30 shown in FIG. 4 (a) is in a state where the cross members 33 for beams are crossed in a cross shape with respect to a total of four vertical members 31 arranged at each corner of a regular square. In addition, it is mounted in a multistage manner (four steps in the drawing) with a space in the vertical direction, and with respect to the beam cross member 33... A reinforcing ring member 35 is attached, and the beam members 33... And the ring members 35 support the cage 30 in a square shape in plan view. In the figure, 32 is a cross member of a square ring structure attached to the lower end portion of the cage 30, and 34 is a bottom plate attached to the cross member 32.

また、図４（ロ）において３６…は、上記（イ）に示した上下多段式のリング材３５…の間を接続するように上下縦方向に配設した計４本の補強用縦材で、（イ）に示したものに比較してその強度性を更に高めることができると共に、（ハ）に示すように、濾布２０が集塵運転による吸引作用を受けてケージ３０の内側に変形した時に、これ等各補強用縦材３６…と補強用リング材３５が変形して来る濾布２０の面を受けて、濾布２０が必要以上に内側に吸引されないように配慮されている。   In FIG. 4 (b), 36 is a total of four reinforcing vertical members arranged in the vertical direction so as to connect the upper and lower multistage ring members 35 shown in (a) above. The strength of the filter cloth 20 can be further enhanced as compared with that shown in (a), and the filter cloth 20 is deformed inside the cage 30 due to the suction action of the dust collecting operation as shown in (c). At this time, it is considered that each of the reinforcing vertical members 36 and the reinforcing ring member 35 receives the deformed surface of the filter cloth 20 so that the filter cloth 20 is not sucked inside more than necessary.

図５は前記請求項４に記載のケージ３０の実施例を示したものであって、図５（イ）では前記図４（イ）に示したケージ３０の補強用リング材３５…に代えて、計４本の縦材３１…の間を結ぶ横材として、ケージ３０の内側に向けて湾曲形成した横材３７…を使用して、十字状に交差させて取付けた梁用横材３３…とこれ等横材３７…が協力して、ケージ３０の平面視形状を保持するように構成すると共に、濾布２０の弛み部２０Ｓ（ヒダ）に対応させて内側に湾曲した横材３７…が、集塵運転時における濾布２０の必要以上の内側への変形を防止する仕組みに成っている。 FIG. 5 shows an embodiment of the cage 30 according to claim 4. In FIG. 5 (a), instead of the reinforcing ring member 35 of the cage 30 shown in FIG. 4 (a). As a cross member connecting the four vertical members 31 in total, a cross member 37 formed by bending toward the inside of the cage 30 is used, and the cross member 33 for the beam attached in a cross shape is attached. And the cross members 37... Cooperate with each other so as to maintain the shape of the cage 30 in a plan view, and the cross members 37... Curved inward corresponding to the slack portions 20S (folds) of the filter cloth 20 are formed. The filter cloth 20 is prevented from being deformed inward more than necessary during the dust collection operation.

また、図５（ロ）は、上記内側に湾曲した横材３７…を１段置きに設けた上記図５（イ）に示すケージ３０の他の実施例を示し、更に、図６（イ）は図３に示したケージ３０の構成を示し、図６（ロ）は図１及び図２に示したケージ３０の構成を説明したものである。   5 (b) shows another embodiment of the cage 30 shown in FIG. 5 (a) in which the inwardly curved cross members 37 are provided at every other stage, and further FIG. 6 (a). 3 shows the configuration of the cage 30 shown in FIG. 3, and FIG. 6B illustrates the configuration of the cage 30 shown in FIGS.

次に、図７（イ）〜（ホ）は、上述した請求項５及び６に示した濾布２０の製作工程を示したものであって、（イ）はフエルト素材等を用いた平板状の濾材に対して、複数本（４本）のバンド５０…を上下に間隔あけて並べて配し、且つ、各バンド５０…の４隅に当たる部分、即ち、各縦材３１…に当たる部分を濾材側に一体に縫い止め又は接着した固定部５１…を造るステップを示す。 Next, FIGS. 7 (a) to 7 (e) show the manufacturing process of the filter cloth 20 shown in claims 5 and 6 described above, and (a) is a flat plate shape using a felt material or the like. A plurality of (four) bands 50 are vertically arranged with respect to the filter medium, and portions corresponding to the four corners of each band 50, that is, portions corresponding to the vertical members 31 are arranged on the filter medium side. Shows a step of making the fixing portions 51...

次の（ロ）は、上記平板状の濾材を円筒状の濾布２０に縫製又は接着するステップを示し、また、（ハ）と（ニ）は各バンド５０における各固定部５１，５１の間、即ち、濾布２０側に縫い止め又は接着されていない部分に、夫々（ハ）の如くＵ字状につまんだＵ字状縫製部５２…を形成したり、或いは、（ニ）及び（ヘ）に示すようにループ状につまんだループ状縫製部５３…を形成することにより、濾布２０を平面視形状が各辺を内側に湾曲させた略四角形状に成形するステップを示し、更に（ホ）は、濾布２０の一番下のだぶついた部分をつまんで縫製するつまみ縫製部５４…を形成し、且つ、下端口に底板５５を縫い止め又は接着して有底の濾布２０を構成するステップを示す。   The next (b) shows the step of sewing or bonding the flat filter medium to the cylindrical filter cloth 20, and (c) and (d) are between the fixing parts 51, 51 in each band 50. That is, a U-shaped sewing portion 52... Pinched in a U-shape as shown in (c) is formed on a portion not sewn or bonded to the filter cloth 20 side, or (d) and (f) ) Shows a step of forming the filter cloth 20 into a substantially quadrangular shape in which each side is curved inward by forming loop-shaped sewing portions 53... Pinched in a loop shape as shown in FIG. E) form a knob sewing portion 54... That sews the bottom loose portion of the filter cloth 20 and sews it, and a bottom plate 55 is sewn or bonded to the lower end of the filter cloth 20 to form the bottomed filter cloth 20. The steps to configure are shown.

尚、上記（ハ）及び（ニ）に示すステップにおいて、上記各バンド５０…のＵ字状縫製部５２及び縫製部５３は、外側への飛び出しがないようにこれをバンド５０の面側に押し付けて縫い止め又は接着する必要がある。また、前記請求項６に記載の如く、上述した濾布２０を略正多角形の筒状体に成形するステップとして、平坦な濾材の表面に上下に間隔をあけて並べて取付ける複数本のバンド５０の長さを、濾材の横幅よりも予め短く形成して、これ等各バンド５０の長手方向に間隔をあけた複数箇所を、夫々の間隔毎に濾材側に弛み部２０Ｓを設けながら濾材の表面に縫い止め又は接着固定した後、濾材の両端縁同士を縫製又は接着固定するステップを用いることも可能である。 In the steps shown in (c) and (d) above, the U-shaped sewing part 52 and the sewing part 53 of each band 50 are pressed against the surface side of the band 50 so as not to protrude outward. Need to be sewn or glued together. Further, as described in the sixth aspect , as a step of forming the filter cloth 20 into a substantially regular polygonal cylindrical body, a plurality of bands 50 attached to the surface of a flat filter medium with a space in the vertical direction. The length of the filter medium is made shorter than the width of the filter medium in advance, and a plurality of points spaced in the longitudinal direction of each band 50 are provided on the surface of the filter medium while providing a slack portion 20S on the filter medium side for each interval. It is also possible to use a step of sewing or bonding and fixing the two edges of the filter medium after sewing or bonding.

図８は、以上の如く平面視形状を正四角形状に形成した濾布２０の、集塵運転時及び塵除運転時における変形状態を示したものであって、（イ）は通常吸引時（集塵運転時）の形状を示し、（ロ）はパルス時（除塵運転時）の形状を示し、（ハ）は（ロ）に示したパルス時におけるバンド５０が取付けられていない部分の濾布２０の変形状態を示す。   FIG. 8 shows a deformed state of the filter cloth 20 having a square shape in plan view as described above during dust collection operation and dust removal operation. (B) shows the shape at the time of pulse (dust removal operation), and (C) shows the filter cloth of the part where the band 50 is not attached at the time of the pulse shown in (B). 20 deformation states are shown.

また、図９はバンド５０で濾布２０が規制されていない従来のフイルタ装置において、除塵運転によって濾布２０のだぶつき２０Ｈの部分が不規則に大きく脹らんで、隣の濾布２０に接触している状態を示したものであって、本発明によればこの様な問題が発生しないフイルタ装置１０を提供することができる。また、図１０は本発明に係るフイルタ装置において、除塵運転時に濾布２０が大きく脹らんで、大きな払い落とし効果を発揮している状態を示したものである。   FIG. 9 shows a conventional filter device in which the filter cloth 20 is not regulated by the band 50, and the portion 20H of the filter cloth 20 irregularly greatly expands due to the dust removal operation and contacts the adjacent filter cloth 20. According to the present invention, it is possible to provide the filter device 10 in which such a problem does not occur. FIG. 10 shows the filter device according to the present invention in a state where the filter cloth 20 is greatly swollen during the dust removal operation and exhibits a large wiping effect.

上述した実施例では、濾布２０及びケージ３０の平面視形状が正四角形のフイルタ装置１０に付いてのみ説明したが、本発明では前記請求項１に示すように平面視形状が正三角形、正五角形、或いは、正六角形に形成したものであっても、同様に実施可能であって、図１１は正三角形状に形成したフイルタ装置１０の構成とその配列状態を示し、図１２は正六角形に形成したフイルタ装置１０の構成を示したものであって、濾布２０とケージ３０の構成は平面視形状が異なるだけで、他の構成は前記正四角形状のものと同一であるから、その詳細な説明は省略する。 In the above-described embodiment, the filter cloth 20 and the cage 30 have been described only with respect to the filter device 10 having a regular square shape. However, in the present invention, as shown in the first aspect , the planar shape is a regular triangle, a regular shape. A pentagonal or regular hexagonal shape can be implemented in the same manner, and FIG. 11 shows the configuration and arrangement of the filter device 10 formed in a regular triangle shape, and FIG. 12 shows a regular hexagonal shape. The configuration of the formed filter device 10 is shown. The configurations of the filter cloth 20 and the cage 30 are different from each other only in the shape in plan view, and the other configurations are the same as those of the regular square shape. The detailed explanation is omitted.

本発明に係るフイルタ装置を実施したパルスジェット式集塵機の要部を示した正断面図。The front sectional view showing the important section of the pulse jet type dust collector which implemented the filter device concerning the present invention. 本発明で用いるケージの一例を示した斜視図。The perspective view which showed an example of the cage used by this invention. 本発明で用いる濾布とケージを分離して示した斜視図。The perspective view which separated and showed the filter cloth and cage used by this invention. 本発明で用いるケージの他の例を示した斜視図。The perspective view which showed the other example of the cage used by this invention. 本発明で用いるケージの他の例を示した斜視図。The perspective view which showed the other example of the cage used by this invention. 図１、図２、図３で使用するケージの構成を説明した斜視図。The perspective view explaining the structure of the cage used in FIG.1, FIG.2, FIG.3. 本発明で用いる濾布の製造工程を説明した説明図。Explanatory drawing explaining the manufacturing process of the filter cloth used by this invention. 本発明に係るフイルタ装置を構成する濾布の通常吸引時とパルス時とバンド以外の部分の形状を説明した説明図。Explanatory drawing explaining the shape of parts other than the band at the time of normal suction of the filter cloth which comprises the filter apparatus which concerns on this invention, at the time of a pulse. バンドで規制されていない濾布が除塵運転時に不規則に脹らんでいる状態を説明した説明図。Explanatory drawing explaining the state which the filter cloth which is not controlled by the band swells irregularly at the time of dust removal driving | operation. 本発明に係るフイルタ装置の濾布が除塵運転時に大きく脹らんでいるいる状態を示した説明図。Explanatory drawing which showed the state which the filter cloth of the filter apparatus which concerns on this invention has expanded greatly at the time of dust removal driving | operation. 本発明に係る正三角形状を成すフイルタ装置の配列状態を説明した構成図。The block diagram explaining the arrangement | sequence state of the filter apparatus which comprises the equilateral triangle shape which concerns on this invention. 本発明に係る正六角形状を成すフイルタ装置の構成図。The block diagram of the filter apparatus which comprises the regular hexagon shape which concerns on this invention. 平面視が円形状のフイルタを用いた従来装置の説明図。Explanatory drawing of the conventional apparatus using the filter of planar view circular shape. 平面視が略小判形状を成すフイルタを用いた従来装置の説明図。Explanatory drawing of the conventional apparatus using the filter which planar view comprises a substantially oval shape.

１ 仕切板
１Ｈ 吹込穴
２ ベンチュリー管
６ ブローチューブ
１０ フイルタ装置
２０ 濾布
２０Ａ 開口部
２０Ｂ 底面部
２０Ｓ 弛み部
３０ ケージ
３１ 縦材
３２ 横材
３３ 梁用横材
３４ 底板
３５ リング材
３６ 縦支持材
３７ 湾曲した横材
５０ バンド
５１ 固定部
５２ Ｕ字状縫製部
５３ ループ状縫製部
５４ つまみ縫製部
５５ 底面板 DESCRIPTION OF SYMBOLS 1 Partition plate 1H Blow hole 2 Venturi pipe 6 Blow tube 10 Filter apparatus 20 Filter cloth 20A Opening part 20B Bottom part 20S Slack part 30 Cage 31 Vertical member 32 Cross member 33 Beam cross member 34 Bottom plate 35 Ring member 36 Vertical support member 37 Curved cross member 50 Band 51 Fixed portion 52 U-shaped sewing portion 53 Loop-shaped sewing portion 54 Knob sewing portion 55 Bottom plate

Claims (6)

ケージの周囲に装着した有底で筒状を成す濾布の内部に圧縮空気を吹き込むことにより、集塵によって濾布に付着したダストを払い落として除塵することができるように構成したパルスジェット式集塵機において、
上記のケージを、複数本の細長い縦材と横材を用いて全体が縦長で、平面視形状が正三角形、正四角形、正五角形、或いは、正六角形のいずれかの略多角形状を成し、且つ、該略多角形状の各頂点部分の夫々には上記の縦材を配した構成と成し、
上記の濾布が、平面視形状を上記ケージと同じ正三角形、正四角形、正五角形、或いは、正六角形のいずれかの略多角形状の筒状に形成され、且つ、この濾布の周囲に複数本のバンドを上下長手方向に間隔をあけて巻き付けて、上記略多角形状の各頂点部分で、上記濾布と各バンドとを固着するように構成する一方、
上記濾布における上記略多角形状の各辺の長さを、上記巻き付けるバンドに比較して長く造ることにより、上記略多角形状の各頂点部分で濾布とバンドとを固着する際に、各頂点部分の間で濾布に夫々弛み部を設けた状態にして固着したことを特徴とするパルスジェット式集塵機用フイルタ装置。 Pulse jet type configured to remove dust attached to the filter cloth by dust collection by blowing compressed air into the bottomed and cylindrical filter cloth attached around the cage. In the dust collector,
The cage, the whole with a plurality of elongate longitudinal members and the cross member is an elongated, planar shape is an equilateral triangle, square, pentagon, or to forming either a substantially polygonal shape of regular hexagon, In addition, each of the apex portions of the substantially polygonal shape has a configuration in which the vertical member is disposed,
The filter cloth is formed into a substantially polygonal cylinder of any one of the regular triangle, regular square, regular pentagon, or regular hexagon having the same planar view shape as the cage, and a plurality of the filter cloths are provided around the filter cloth. this band by winding at a vertical longitudinally apart, each apex portion of the substantially polygonal shape, one configured to fix the said filter cloth and each band,
By making the length of each side of the substantially polygonal shape in the filter cloth longer than that of the band to be wound, when fixing the filter cloth and the band at each vertex part of the substantially polygonal shape, each vertex A filter device for a pulse jet dust collector, wherein the filter cloth is fixed with a slack portion provided between the portions . 前記ケージのうち、平面視形状が正三角形を成すケージを除く他の正四角形、正五角形、或いは、正六角形のケージを構成する各縦材のうち、少なくとも隣接する縦材を除く他の縦材同士の間に、複数本の梁用横材をその中間部で互いに交差するように掛け渡して取付けたことを特徴とする請求項１に記載のパルスジェット式集塵機用フイルタ装置。 Of the cages, other longitudinal members excluding at least adjacent longitudinal members among other longitudinal members constituting a regular tetragonal, regular pentagonal or regular hexagonal cage excluding a cage whose shape in plan view is a regular triangle. 2. The filter device for a pulse jet dust collector according to claim 1, wherein a plurality of cross members for beams are attached so as to cross each other at the intermediate portion therebetween. 各縦材の間に架設する各梁用横材の交差点部分を囲むように、該横材に対して補強用のリング材を取付けたことを特徴とする請求項２に記載のパルスジェット式集塵機用フイルタ装置。 3. A pulse jet dust collector according to claim 2 , wherein a ring member for reinforcement is attached to the cross member so as to surround an intersection portion of the cross members for each beam installed between the vertical members. Filter device. 隣接する各縦材の間に設けた横材を、ケージの内側に向けて湾曲形成したことを特徴とする請求項１に記載のパルスジェット式集塵機用フイルタ装置。   The filter device for a pulse jet dust collector according to claim 1, wherein a cross member provided between adjacent vertical members is curved toward the inside of the cage. パルスジェット式集塵機用フイルタ装置に使用する濾布の製造方法であって、
平坦な濾布材の表面に複数本のバンドを上下に間隔をあけて並べて配設し、これ等各バンドの長手方向に間隔をあけた複数箇所を、上記濾布材の表面に縫い止め又は接着固定するステップと、
上記濾布材の両端縁同士を縫製又は接着固定して、全体を略円筒状の濾布と成すステップと、
上記濾布材に間隔をあけて複数箇所縫い止め又は接着固定した上記各バンドの中間部分を短く調整して、濾布をその平面視形状が各辺ごとに弛み部を設けた正三角形、正四角形、正五角形、或いは、正六角形のいずれかの略多角形状の筒状体に成形するステップと、
上記筒状体に成形した濾布の一端口を塞いで、全体を略多角形状の袋体に成形するステップと、
から成ることを特徴とするフイルタ装置用濾布の製造方法。 A method of manufacturing a filter cloth used in a filter device for a pulse jet dust collector,
A plurality of bands are arranged side by side on the surface of the flat filter cloth material at intervals, and a plurality of these bands spaced in the longitudinal direction are sewn on the surface of the filter cloth material or Gluing and fixing;
Sewing or bonding and fixing the edges of the filter cloth material together, and forming the whole into a substantially cylindrical filter cloth,
Adjust the intermediate portion of the plurality of locations sewing stop or adhesive fixed above each band shorter intervals to the filter cloth material, equilateral triangle filter cloth is a plan view shape and the slack portion provided for each side, a positive square, pentagonal, or the steps of forming a substantially polygonal shape of the cylindrical body of any of the regular hexagon,
Closing one end of the filter cloth formed into the cylindrical body, and forming the whole into a substantially polygonal bag body,
A method for producing a filter cloth for a filter device, comprising: 濾布を前記略多角形の筒状体に成形するステップとして、平坦な濾布材の表面に上下に間隔をあけて並べて取付ける複数本のバンドの長さを、濾布材の横幅よりも予め短く形成して、これ等各バンドの長手方向に間隔をあけた複数箇所を、夫々の間隔毎に濾布材側に弛み部を設けながら濾布材の表面に縫い止め又は接着固定した後、濾布材の両端縁同士を縫製又は接着固定するステップを用いることを特徴とする請求項５に記載のフイルタ装置用濾布の製造方法。 As the step of forming the filter cloth to the cylindrical body of the substantially polygonal, the length of the plurality of bands mounting side by side at intervals in the vertical to the surface of the flat filter cloth material, in advance than the transverse width of the filter cloth material After forming a short, a plurality of locations spaced in the longitudinal direction of each of these bands, after being sewn or adhesively fixed to the surface of the filter cloth material while providing a slack portion on the filter cloth material side for each interval, 6. The method for producing a filter cloth for a filter device according to claim 5 , wherein a step of sewing or bonding and fixing both end edges of the filter cloth material is used.
JP2004179436A 2004-06-17 2004-06-17 Filter device for pulse jet dust collector and method for producing filter cloth for filter device Expired - Fee Related JP4533676B2 (en)

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