JP3781791B2

JP3781791B2 - Dust collection filter

Info

Publication number: JP3781791B2
Application number: JP24457194A
Authority: JP
Inventors: 晴夫藤倉; 啓治小日向
Original assignee: Sankei Giken Kogyo Co Ltd
Current assignee: Sankei Giken Kogyo Co Ltd
Priority date: 1994-09-13
Filing date: 1994-09-13
Publication date: 2006-05-31
Anticipated expiration: 2021-05-31
Also published as: JPH0880414A

Description

【０００１】
【産業上の利用分野】
本発明は、例えば焼却炉やボイラー等で発生する煤煙を除去するための集塵装置や、その他各種の集塵装置に用いる集塵フィルタに関する。更に詳しくは、煤煙等の含塵流体中の塵埃等を流体との慣性力の差を利用して捕捉する慣性分離型の集塵フィルタに関するものである。
【０００２】
【従来の技術】
上記のような慣性分離型の集塵フィルタとして、例えば特開平２−２０２８６号公報のように、薄い金属板をプレス打ち抜き加工等により板面に対して所定の角度傾斜したハニカム状の透孔を同方向に多数形成してなる網目状のフィルタ素子を、上記透孔の向きが例えば９０°づつ異なるようにして複数枚積層したものが知られている。
【０００３】
上記の集塵フィルタは、含塵流体が向きの異なるハニカム状の透孔を順次旋回しながら通過する過程で慣性力の大きな塵埃等をフィルタの壁面等に衝突させて捕捉するものであるが、形状が複雑で製作が面倒であると共に、捕捉した塵埃等を除去するのが大変困難である等の不具合がある。
【０００４】
そこで、本出願人は先に特開平６−２３２１４号公報において、図１１に示すように断面略へ字形のフィルタ素子１を流体流入方向（図中矢印ａ方向）と直角方向に所定の間隔をおいて多数平行に略面状に配列すると共に、その略面状に配列されたフィルタ素子１を流体流入方向に複数列設け、その奇数列目のフィルタ素子１ａと偶数列目のフィルタ素子１ｂの向きを交互に反転させ且つ配列ピッチをずらして配置してなる集塵フィルタを提案した。
【０００５】
上記のように断面略へ字形のフィルタ素子１を用いた集塵フィルタは、前記従来のハニカム状のフィルタに比べて構造が簡単であり、また捕捉した塵埃等を容易に除去できる等の利点がある。
【０００６】
【発明が解決しようとする課題】
本発明は上記のように複数列に配列される断面略へ字形のフィルタ素子を所定の間隔に構造簡単かつ確実に位置決め保持させることを目的とする。
【０００７】
【課題を解決するための手段】
上記の目的を達成するために本発明による集塵フィルタは、以下の構成としたものである。
【０００８】
即ち、断面略へ字形のフィルタ素子を流体流入方向と直角方向に所定の間隔をおいて多数平行に面状に配列すると共に、その面状に配列されたフィルタ素子を流体流入方向に複数列設け、その奇数列目と偶数列目の上記へ字形フィルタ素子の向きを交互に反転させ且つ流体流入方向と直角方向にずらして配置してなる集塵フィルタにおいて、上記奇数列目と偶数列目のフィルタ素子をそれぞれ屈曲部または切り起こし片によって所定の間隔に位置決め保持すると同時に隣り合う列間の間隔を所定の間隔に保持する２種類の帯板状の間隔保持部材を、その幅方向が上記フィルタ素子の長手方向になるようにして該フィルタ素子の長手方向複数箇所に設け、上記２種類の間隔保持部材にそれぞれ奇数列目と偶数列目のフィルタ素子を溶接等で固着すると共に、上記各間隔保持部材で所定の間隔に位置決め保持した複数列のフィルタ素子を枠体内に収容配置したことを特徴とする。
【０００９】
【作用】
上記のように、複数列に配列した各列のフィルタ素子を所定の間隔に位置決め保持すると同時に隣り合う列間の間隔を所定の間隔に保持する間隔保持部材を設けると共に、その間隔保持部材で所定の間隔に位置決め保持した複数列のフィルタ素子を枠体内に収容配置したことによって、複数列のフィルタ素子を所定の間隔に構造簡単かつ確実に位置決め保持させることが可能となる。
【００１０】
【実施例】
以下、本発明による集塵フィルタを、図に示す実施例に基づいて具体的に説明する。
図１は本発明による集塵フィルタの一実施例を示す正面図、図２はその一部切り欠き底面図、図３はその一部の拡大底面図である。
【００１１】
図に示す実施例は、断面略へ字形のフィルタ素子１を流体流入方向（図３で矢印ａ方向）と直角方向に所定の間隔をおいて多数平行に面状に配列すると共に、その面状に配列されたフィルタ素子を流体流入方向に複数列、図の場合は図３および図４に示すように４列設けたもので、その各列のフィルタ素子１の配列ピッチは同一とし、奇数列目に配列されたフィルタ素子１ａと偶数列目に配列されたフィルタ素子１ｂの向きは、流体流入方向に対して交互に反転させると共に、配列位置は流体流入方向と直角方向に半ピッチずらして配置されている。その各フィルタ素子１（１ａ・１ｂ）の材質は、金属板または合成樹脂板等その他適宜であるが、耐熱性および耐蝕性が要求される場合には、アルミニウム合金やステンレス鋼板等を用いるとよい。
【００１２】
上記のように複数列に配列した各列のフィルタ素子１を所定の間隔に位置決め保持すると同時に隣り合う列間の間隔を所定の間隔に保持する間隔保持部材２ａ・２ｂを設けたもので、図示例においては図３に示すように奇数列目のフィルタ素子１ａと、偶数列目のフィルタ素子１ｂとを、それぞれ形状の異なる間隔保持部材２ａ・２ｂで所定の間隔に位置決め保持させると同時に、その間隔保持部材２ａ・２ｂにより隣り合う列のフィルタ素子１ａ・１ｂの間隔を所定の間隔に保持させるようにしたものである。上記各間隔保持部材２ａ・２ｂは、フィルタ素子１ａ・１ｂの長手方向に複数個設けるとよく、図示例のおいては図１に示すように各フィルタ素子１ａ・１ｂの長手方向両端部と中央部にそれぞれ３本ずつ設けられている。
【００１３】
上記各間隔保持部材２ａ・２ｂは、図示例においては図５〜図１０に示すように長手方向略全長にわたって補強用の突条２１を有する帯板状のものが用いられ、その帯板状の各間隔保持部材２ａ・２ｂの長手方向複数箇所に屈曲部や切り起こし片等を所定の間隔に形成して、それぞれ奇数列および偶数列目のフィルタ素子１ａ・１ｂを位置決め保持させるようにしたものである。
【００１４】
即ち、間隔保持部材２ａには、図５〜図７に示すように長手方向複数箇所に山形の屈曲部２２が所定の間隔をおいて多数形成され、その山形の屈曲部２２の内面に、奇数列目に配列されるフィルタ素子１ａの頂部を係合させて位置決め保持させた構成である。また間隔保持部材２ｂには、図８〜図１０に示すように長手方向複数箇所に略偏平台形状の屈曲部２３を所定の間隔をおいて多数形成して偶数列目に配列されるヘ字形フィルタ素子１ｂの開口側を嵌合保持させると共に、間隔保持部材２ｂの一部を折り曲げて形成した切り起こし片２４・２５を上記ヘ字形フィルタ素子１ｂの内面に当接させた構成である。
【００１５】
上記各間隔保持部材２ａ・２ｂとフィルタ素子１ａ・１ｂとは、好ましくは溶接等で一体的に固着するとよく、図示例においては奇数列目のフィルタ素子１ａと間隔保持部材２ａとを図５・図６に示すように前記屈曲部２２においてスポット溶接Ｗ等で固着し、偶数列目のフィルタ素子１ｂと間隔保持部材２ｂとを前記切り起こし片２５においてスポット溶接Ｗ等で固着している。
【００１６】
上記のようにして間隔保持部材２ａ・２ｂで所定の間隔に位置決め保持させた奇数列および偶数列のフィルタ素子１ａ・１ｂを、図３に示すように順に積層することによって隣り合う列のフィルタ素子１ａ・１ｂの間隔が所定の間隔に保持されるもので、そのとき間隔保持部材２ａで位置決め保持させた奇数列目のフィルタ素子１ａは、間隔保持部材２ｂの隣り合う屈曲部２３・２３間に当接し、間隔保持部材２ｂで位置決め保持させた偶数列目のフィルタ素子１ｂは、間隔保持部材２ａの隣り合う屈曲部２２・２２間に当接する。
【００１７】
そして、上記のように複数列のフィルタ素子１ａ・１ｂを間隔保持部材２ａ・２ｂにより所定の間隔に位置決め保持させた状態で、枠体３内に一括して収容配置したもので、その枠体３は図示例においては金属板等により図１に示すように正面方形に形成され、その方形の枠体３の各辺は断面コ字形に形成されている。又その枠体３の一辺３ａは着脱自在に構成され、その辺３ａを外した状態で複数列のフィルタ素子を収容した後、上記の辺３ａを溶接等で固着するようにしたものである。図中、３０は枠体３の下面に設けた塵埃等の排出用開口で、その開口３０は本実施例においては枠体３の上面にも設けられている。
【００１８】
上記のように構成された集塵フィルタにより例えば煤煙等の流体中の塵埃を除去するに当たっては、上記の集塵フィルタを流体通路内に、その流体流入方向と直角方向に設置する。すると、その集塵フィルタの前側から図３および図４の矢印のように該集塵フィルタに向かって流入してきた流体は、図４に示すように最前列の隣り合うフィルタ素子１ａ・１ａ間の隙間Ｓから第２列目のフィルタ素子１ｂとの間の空間内に進入した後、その第２列目のヘ字形フィルタ素子１ｂの頂部内面で左右に振り分けられて、その２列目の隣り合うフィルタ素子１ｂ・１ｂ間の間隙Ｓ内に進入する。これを順次回繰り返すことによって流体は図４中の矢印のように大きく迂回しながら複数列のフィルタ素子１の隣り合う隙間Ｓを順に通過し、そのとき慣性力の大きな塵埃等はフィルタ素子１の壁面に衝突して慣性力が弱められると共に、その壁面、特にヘ字形フィルタ素子１の頂部内面等に付着して捕捉される。
【００１９】
その捕捉された塵埃等は、適時清掃して除去すればよく、その際、本発明による集塵フィルタは上記のように単純な断面ヘ字形のフィルタ素子を素材としているので、容易に除去することができる。特に図示例のようにヘ字形フィルタ素子１の頂部の稜線が上下方向になるように設置すると、フィルタ素子の壁面に捕捉された塵埃等の一部が自重で落下し、また壁面に付着したままの塵埃等も刷毛等で容易に除去できる。又その場合、図２に示すように前記枠体３の少なくとも下面に捕捉した塵埃等の排出用開口３０を設けておけば、枠体３を外すことなく除去することができる。
【００２０】
なお上記実施例は間隔保持部材２ａ・２ｂで所定の間隔に位置決め保持された奇数列と偶数列のフィルタ素子１ａ・１ｂを単に重ねて枠体３内に収容配置するようにしたが、例えば上記間隔保持部材２ａ・２ｂを、それらを貫通するリベットもしくはボルト・ナット等で一体的に連結固定してから枠体３内に収容配置すようにしてもよい。
【００２１】
また上記実施例は複数列のフィルタ素子１を平面状に配列させたが、円弧状もしくは円筒状その他種々の形状に配列させることもできる。
【００２２】
【発明の効果】
以上説明したように本発明による集塵フィルタは、断面略へ字形のフィルタ素子１を流体流入方向と直角方向に所定の間隔をおいて多数平行に面状に配列すると共に、その面状に配列されたフィルタ素子１を流体流入方向に複数列設け、その奇数列と偶数列における上記へ字形フィルタ素子の向きを交互に反転させ且つ流体流入方向と直角方向にずらして配置してなる集塵フィルタにおいて、上記複数列に配列した各列のフィルタ素子１を所定の間隔に位置決め保持すると同時に隣り合う列間の間隔を所定の間隔に保持する間隔保持部材２ａ・２ｂを設けると共に、その間隔保持部材２ａ・２ｂで所定の間隔に位置決め保持した複数列のフィルタ素子を枠体３内に収容配置したから、上記のように複数列に配列されるフィルタ素子１を所定の間隔に構造簡単かつ確実に位置決め保持させることが可能となり、この種の集塵装置を容易・安価に製作できる等の効果がある。
【図面の簡単な説明】
【図１】本発明による集塵フィルタの一実施例を示す一部切り欠き正面図。
【図２】上記実施例の一部切り欠き底面図。
【図３】図２の一部の拡大図。
【図４】フィルタ素子の配置構成を示す説明図。
【図５】奇数列のフィルタ素子を位置決め保持する間隔保持部材の正面図。
【図６】図５の底面図。
【図７】図６におけるＡ−Ａ線断面図。
【図８】偶数列のフィルタ素子を位置決め保持する間隔保持部材の正面図。
【図９】図８の底面図。
【図１０】図９におけるＢ−Ｂ線断面図。
【図１１】従来の集塵フィルタの概略構成を示す平面図。
【符号の説明】
１、１ａ、１ｂフィルタ素子
２ａ、２ｂ間隔保持部材
３枠体
Ｓ間隙[0001]
[Industrial application fields]
The present invention relates to a dust collecting device for removing smoke generated in, for example, an incinerator or a boiler, and a dust collecting filter used for various other dust collecting devices. More specifically, the present invention relates to an inertia separation type dust collection filter that captures dust or the like in a dust-containing fluid such as soot using a difference in inertia force from the fluid.
[0002]
[Prior art]
As the inertia separation type dust collecting filter as described above, for example, as disclosed in Japanese Patent Application Laid-Open No. 2-20286, a thin metal plate is formed with a honeycomb-shaped through hole inclined at a predetermined angle with respect to a plate surface by press punching or the like. 2. Description of the Related Art A plurality of mesh filter elements formed in the same direction are stacked such that the direction of the through hole is different by 90 °, for example.
[0003]
The above dust collection filter is a filter in which dust or the like having a large inertial force collides with the wall surface of the filter and the like in the process of passing through the honeycomb-shaped through holes having different directions while the dust-containing fluid is swirling sequentially. There are problems such as complicated shape and troublesome manufacture, and it is very difficult to remove captured dust and the like.
[0004]
In view of this, the present applicant previously disclosed in Japanese Patent Application Laid-Open No. 6-23214, a filter element 1 having a substantially square cross section as shown in FIG. 11 has a predetermined interval in a direction perpendicular to the fluid inflow direction (direction of arrow a in the figure). The filter elements 1 arranged in a substantially plane shape in parallel are arranged in a plurality of rows in the fluid inflow direction, and the odd-numbered filter elements 1a and the even-numbered filter elements 1b are arranged. A dust collection filter was proposed in which the directions were alternately reversed and the arrangement pitch was shifted.
[0005]
As described above, the dust collection filter using the filter element 1 having a substantially square cross section has an advantage that the structure is simpler than the conventional honeycomb filter, and the captured dust and the like can be easily removed. is there.
[0006]
[Problems to be solved by the invention]
An object of the present invention is to simply and reliably position and hold the filter elements having a substantially square cross section arranged in a plurality of rows as described above at a predetermined interval.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a dust collection filter according to the present invention has the following configuration.
[0008]
That is, a plurality of filter elements having a substantially rectangular cross section are arranged in a plane in parallel with a predetermined interval in the direction perpendicular to the fluid inflow direction, and a plurality of rows of filter elements arranged in the plane are provided in the fluid inflow direction. in particulate filter formed by staggered to the odd-numbered columns and even-numbered columns of the faces is reversed alternately and the fluid inflow direction and perpendicular direction of the to-shaped filter element, the odd-numbered columns and even-numbered columns of 2 types of strip-shaped spacing member, the filter its width direction which retains the spacing between adjacent rows and simultaneously positioned and held at predetermined intervals a filter element by a respective bent portion or the cut-and-raised pieces at predetermined intervals Provided at multiple locations in the longitudinal direction of the filter element so as to be in the longitudinal direction of the element, and the odd-numbered and even-numbered filter elements are fixed to the two types of spacing members by welding or the like, respectively. Rutotomoni, characterized in that the filter elements of a plurality of rows that positioned and held at predetermined intervals in the above spacing member is positioned accommodated inside the frame.
[0009]
[Action]
As described above, the filter elements of each row arranged in a plurality of rows are positioned and held at a predetermined interval, and at the same time, the interval holding member that holds the interval between adjacent columns at a predetermined interval is provided. The plurality of rows of filter elements positioned and held at the intervals are accommodated in the frame, so that the plurality of rows of filter elements can be positioned and held at a predetermined interval in a simple and reliable manner.
[0010]
【Example】
Hereinafter, a dust collection filter according to the present invention will be described in detail based on an embodiment shown in the drawings.
FIG. 1 is a front view showing an embodiment of a dust collecting filter according to the present invention, FIG. 2 is a partially cutaway bottom view thereof, and FIG. 3 is a partially enlarged bottom view thereof.
[0011]
In the embodiment shown in the figure, a plurality of filter elements 1 each having a substantially letter-shaped cross section are arranged in a plane in parallel with a predetermined interval in a direction perpendicular to the fluid inflow direction (arrow a direction in FIG. 3). Are arranged in a plurality of rows in the fluid inflow direction, in the case of the figure, four rows are provided as shown in FIGS. 3 and 4, and the arrangement pitch of the filter elements 1 in each row is the same, and the odd number rows The orientations of the filter elements 1a arranged in the eyes and the filter elements 1b arranged in the even-numbered rows are alternately reversed with respect to the fluid inflow direction, and the arrangement positions are shifted by a half pitch in the direction perpendicular to the fluid inflow direction. Has been. The material of each filter element 1 (1a, 1b) may be a metal plate, a synthetic resin plate, or the like as appropriate. However, when heat resistance and corrosion resistance are required, an aluminum alloy or a stainless steel plate may be used. .
[0012]
As described above, the filter elements 1 arranged in a plurality of rows are positioned and held at predetermined intervals, and at the same time, interval holding members 2a and 2b are provided to hold intervals between adjacent columns at predetermined intervals. In the illustrated example, as shown in FIG. 3, the odd-numbered filter elements 1a and the even-numbered filter elements 1b are positioned and held at predetermined intervals by interval holding members 2a and 2b having different shapes. The interval between the filter elements 1a and 1b in adjacent rows is held at a predetermined interval by the interval holding members 2a and 2b. A plurality of the spacing members 2a and 2b may be provided in the longitudinal direction of the filter elements 1a and 1b. In the illustrated example, as shown in FIG. Three are provided in each part.
[0013]
As shown in FIGS. 5 to 10, each of the spacing members 2 a and 2 b is a band plate-like member having a reinforcing protrusion 21 over substantially the entire length in the longitudinal direction. Bending portions and cut-and-raised pieces are formed at predetermined intervals at a plurality of positions in the longitudinal direction of the spacing members 2a and 2b so that the odd-numbered and even-numbered filter elements 1a and 1b are positioned and held respectively. It is.
[0014]
That is, as shown in FIG. 5 to FIG. 7, a large number of angled bent portions 22 are formed at a predetermined interval on the interval holding member 2 a at a predetermined interval, and an odd number is formed on the inner surface of the angled bent portion 22. In this configuration, the tops of the filter elements 1a arranged in the rows are engaged and positioned. Also the spacing members 2b, f-shape arranged in the even sequence eyes and the bent portion 23 of a substantially flat trapezoidal longitudinally a plurality of locations to form a number at a predetermined interval as shown in FIGS. 8 to 10 The opening side of the filter element 1b is fitted and held, and the cut-and-raised pieces 24 and 25 formed by bending a part of the interval holding member 2b are brought into contact with the inner surface of the rectangular filter element 1b.
[0015]
The spacing members 2a and 2b and the filter elements 1a and 1b are preferably fixed integrally by welding or the like. In the illustrated example, the odd-numbered filter elements 1a and the spacing members 2a are connected to each other as shown in FIG. As shown in FIG. 6, the bent portion 22 is fixed by spot welding W or the like, and the even-numbered filter elements 1b and the spacing members 2b are fixed by the cut and raised pieces 25 by spot welding W or the like.
[0016]
The filter elements 1a and 1b in the odd rows and the even rows that are positioned and held at the predetermined intervals by the spacing members 2a and 2b as described above are sequentially stacked as shown in FIG. The interval 1a and 1b are held at a predetermined interval. At that time, the odd-numbered filter elements 1a positioned and held by the interval holding member 2a are arranged between adjacent bent portions 23 and 23 of the interval holding member 2b. The even-numbered filter elements 1b in contact with each other and positioned and held by the interval holding member 2b are in contact between adjacent bent portions 22 and 22 of the interval holding member 2a.
[0017]
Then, as described above, a plurality of rows of filter elements 1a and 1b are positioned and held at predetermined intervals by the interval holding members 2a and 2b and are collectively accommodated and arranged in the frame 3, and the frame In the illustrated example, 3 is formed in a front square shape by a metal plate or the like as shown in FIG. 1, and each side of the rectangular frame 3 is formed in a U-shaped cross section. One side 3a of the frame 3 is configured to be detachable, and after the plurality of rows of filter elements are accommodated with the side 3a removed, the side 3a is fixed by welding or the like. In the figure, reference numeral 30 denotes an opening for discharging dust or the like provided on the lower surface of the frame 3, and the opening 30 is also provided on the upper surface of the frame 3 in this embodiment.
[0018]
In order to remove dust in a fluid such as smoke by using the dust collection filter configured as described above, the dust collection filter is installed in the fluid passage in a direction perpendicular to the fluid inflow direction. Then, the fluid flowing in from the front side of the dust collection filter toward the dust collection filter as shown by the arrows in FIGS. 3 and 4 is between the adjacent filter elements 1a and 1a in the front row as shown in FIG. After entering the space between the filter element 1b in the second row from the gap S, it is distributed to the left and right on the inner surface of the top of the second filter element 1b in the second row and adjacent to the second row. It enters the gap S between the filter elements 1b and 1b. By sequentially repeating this, the fluid passes through the gaps S adjacent to each other in a plurality of rows of filter elements 1 while largely detouring as indicated by the arrows in FIG. The inertial force is weakened by colliding with the wall surface, and is attached to and captured by the wall surface, in particular, the inner surface of the top portion of the H-shaped filter element 1.
[0019]
The trapped dust and the like may be cleaned and removed in a timely manner. At that time, the dust collection filter according to the present invention is made of a simple filter element having a cross-sectional shape as described above. Can do. In particular, when the ridge line at the top of the H-shaped filter element 1 is installed in the vertical direction as in the illustrated example, a part of the dust trapped on the wall surface of the filter element falls by its own weight and remains attached to the wall surface. The dust can be easily removed with a brush or the like. In this case, as shown in FIG. 2, if an opening 30 for discharging dust or the like captured on at least the lower surface of the frame 3 is provided, the frame 3 can be removed without removing it.
[0020]
In the above-described embodiment, the odd-numbered and even-numbered filter elements 1a and 1b positioned and held at predetermined intervals by the spacing members 2a and 2b are simply overlapped and accommodated in the frame 3. For example, The spacing members 2a and 2b may be accommodated and arranged in the frame 3 after being integrally connected and fixed by rivets or bolts and nuts penetrating them.
[0021]
In the above embodiment, the filter elements 1 in a plurality of rows are arranged in a planar shape, but they can be arranged in an arc shape, a cylindrical shape or other various shapes.
[0022]
【The invention's effect】
As described above, the dust collecting filter according to the present invention has a plurality of filter elements 1 each having a substantially rectangular cross section arranged in a plane in parallel with a predetermined interval in a direction perpendicular to the fluid inflow direction. The filter element 1 is provided in a plurality of rows in the fluid inflow direction, and the dust collecting filter is formed by alternately reversing the direction of the above-mentioned Hex filter elements in the odd and even rows and shifting in the direction perpendicular to the fluid inflow direction. In this embodiment, the filter elements 1 of each row arranged in a plurality of rows are positioned and held at a predetermined interval, and at the same time, interval holding members 2a and 2b are provided to hold an interval between adjacent rows at a predetermined interval, and the interval holding members are provided. Since the plural rows of filter elements positioned and held at predetermined intervals by 2a and 2b are accommodated in the frame 3, the filter elements 1 arranged in the plural rows as described above are arranged in a predetermined manner. It becomes possible to structure easily and reliably positioned and held at intervals, there are effects such that this type of dust collector easily, can be manufactured at a low cost.
[Brief description of the drawings]
FIG. 1 is a partially cutaway front view showing an embodiment of a dust collection filter according to the present invention.
FIG. 2 is a partially cutaway bottom view of the embodiment.
FIG. 3 is an enlarged view of a part of FIG.
FIG. 4 is an explanatory diagram showing an arrangement configuration of filter elements.
FIG. 5 is a front view of a spacing member that positions and holds the odd-numbered filter elements.
6 is a bottom view of FIG. 5. FIG.
7 is a cross-sectional view taken along line AA in FIG.
FIG. 8 is a front view of a spacing member that positions and holds even-numbered filter elements.
9 is a bottom view of FIG. 8. FIG.
10 is a sectional view taken along line BB in FIG.
FIG. 11 is a plan view showing a schematic configuration of a conventional dust collection filter.
[Explanation of symbols]
1, 1a, 1b Filter element 2a, 2b Interval holding member 3 Frame body S Gap

Claims

A large number of filter elements having a substantially rectangular cross section are arranged in a plane in parallel with a predetermined interval in the direction perpendicular to the fluid inflow direction, and a plurality of rows of filter elements arranged in the plane are provided in the fluid inflow direction. in odd-numbered columns and even-numbered columns of the particulate filter formed by arranging faces by shifting the inverted thereby and the fluid inflow direction and perpendicular to the alternating of the to-shaped filter element, the odd-numbered columns and even-numbered columns of the filter element Are positioned and held at predetermined intervals by bent portions or cut-and-raised pieces , respectively, and at the same time, two types of band plate-like interval holding members that hold an interval between adjacent rows at a predetermined interval , the width direction of which is the filter element Provided at a plurality of locations in the longitudinal direction of the filter element so as to be in the longitudinal direction, and the odd-numbered and even-numbered filter elements are fixed to the two types of spacing members by welding or the like, respectively. A dust collecting filter which is characterized in that the filter elements of a plurality of rows that positioned and held at predetermined intervals in the above spacing member is positioned accommodated inside the frame.