JP6009482B2 - Connection structure of filter cloth lower end in filter press - Google Patents

Connection structure of filter cloth lower end in filter press Download PDF

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JP6009482B2
JP6009482B2 JP2014048733A JP2014048733A JP6009482B2 JP 6009482 B2 JP6009482 B2 JP 6009482B2 JP 2014048733 A JP2014048733 A JP 2014048733A JP 2014048733 A JP2014048733 A JP 2014048733A JP 6009482 B2 JP6009482 B2 JP 6009482B2
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filter cloth
filter
protruding edge
cylindrical body
slit
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JP2014131805A (en
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伊藤　弘志
弘志 伊藤
伊藤　恭司
恭司 伊藤
伊藤　嘉浩
伊藤　　嘉浩
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Ito Corp
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Description

本発明は、フィルタープレスにおいて濾板の表裏面を被覆する濾布の各下端を接続する構造に関する。   The present invention relates to a structure for connecting each lower end of a filter cloth covering front and back surfaces of a filter plate in a filter press.

従来、フィルタープレスにおける各濾板には、その上端に横架した吊り下げ棒に濾布を二つ折りにして垂れ下げることにより、濾板表裏の濾過面の夫々を濾布にて被覆している。
そして、濾板表裏の濾布の各下端には筒状収納部が設けられ、該筒状収納部にこれより長い濾布張り棒を挿入し、筒状収納部両端より突出する濾布張り棒の濾板を介して対向する端部同士を紐又は針金などにより括り付けている。
この様に、濾布下端に取付けた濾板表裏の一対の濾布張り棒を突き合わせることにより、濾板各面上に濾布を緊張状態に保持し、主に濾過不良の発生を防止している（特許文献１の従来技術参照）。 Conventionally, each filter plate in a filter press is covered with a filter cloth on each of the filter surfaces on the front and back of the filter plate by hanging the filter cloth in two on a hanging rod that lies horizontally on the upper end of the filter plate. .
And the cylindrical storage part is provided in each lower end of the filter cloth on the front and back of the filter plate, and a filter cloth tensioning rod that is longer than this is inserted into the cylindrical storage part and protrudes from both ends of the cylindrical storage part. The ends facing each other through the filter plate are tied together with a string or a wire.
In this way, a pair of filter cloth tension rods on the front and back of the filter plate attached to the lower end of the filter cloth are abutted to hold the filter cloth in tension on each side of the filter plate, mainly preventing the occurrence of poor filtration. (Refer to the prior art of Patent Document 1).

しかしながら、フィルタープレスには、複数枚の濾板が備えられており、濾板の夫々に上記の様に上方から垂れ下げられた各濾布下端の筒状収納部に濾布張り棒を挿入し、対となる濾布張り棒の各端部を紐等で括り付けねばならず、その着脱作業は甚だ面倒で、手間、時間を要していた。
かかる不具合を解消するため、特許文献１では、濾布下端に設けた筒状収容部における一方の開口部の上半部のみ以外を閉塞し、開口された上半部から濾布幅に略合致した長さの濾布張り棒を出し入れしてこれを下半部に収容し、濾布張り棒の筒状収容部からの脱落を防止すると共に、濾布張り棒端部の紐等による括り付けを不要とした濾布が開示されている。 However, the filter press is provided with a plurality of filter plates, and a filter cloth tension bar is inserted into the cylindrical storage portion at the lower end of each filter cloth that is suspended from above as described above. Each end of the filter cloth tension bar to be paired must be tied with a string or the like, and the attaching and detaching work is very troublesome and requires time and effort.
In order to eliminate such inconveniences, Patent Document 1 closes only the upper half of one opening in the cylindrical housing provided at the lower end of the filter cloth and substantially matches the width of the filter cloth from the opened upper half. The filter cloth tension bar of the specified length is put in and out and accommodated in the lower half part, and the filter cloth tension bar is prevented from falling off from the cylindrical accommodating part, and the filter cloth tension bar end is tied with a string or the like. A filter cloth that eliminates the need is disclosed.

特開平９−１０８５０９号公報JP-A-9-108509

特許文献１の濾布では、対となる濾布張り棒の括り付けを不要とするだけで、依然として１枚の濾板に対し２本の濾布張り棒を要すると共に、濾布下端に形成される筒状収納部は少なくとも濾布張り棒２本分のスペースを要し、更に筒状収容部への濾布張り棒の出し入れ作業は、両端開放の筒状収納部に比し極めて困難で手間隙を要している。
そこで、本発明では、濾布張り棒を使用することなく、濾布下端を簡単容易に袋とじして濾板表裏の濾過面上に濾布を緊張状態に保持できる様にした濾布下端の接続構造を提供することを目的としている。 In the filter cloth of Patent Document 1, it is not necessary to bind the pair of filter cloth tension bars, but two filter cloth tension bars are still required for one filter plate, and the filter cloth is formed at the lower end of the filter cloth. The cylindrical storage section requires at least the space for two filter cloth tension bars, and it is extremely difficult and difficult to insert and remove the filter cloth tension bar into and out of the cylindrical storage section. Is needed.
Therefore, in the present invention, without using a filter cloth tension bar, the lower end of the filter cloth can be easily held on the filter surface on the front and back of the filter plate by easily bagging the lower end of the filter cloth. It aims to provide a connection structure.

上記課題に鑑み、本発明のフィルタプレスにおける濾布下端の接続構造は、濾板の表裏面を被覆する濾布において、濾板下端より下方に配置される濾布下端の夫々に当該下端を折り返して縫製して設けた突縁と、一条のスリットを側壁の長手方向全域に渡って穿設した筒体とから成り、該筒体内にこれの長手方向の一端開口部からスライド挿入して成るスリットより幅広に形成した突縁をスリットを通して抜止め保持することにより濾布下端を袋綴じしたことを特徴とする。
更に、筒体においてスリットを構成する側端の筒体内側に上記突縁が掛止可能な逆鉤を突設したり、筒体は複数本に分割形成したことを特徴としている。 In view of the above problems, the filter cloth lower end connection structure in the filter press of the present invention is the filter cloth covering the front and back surfaces of the filter plate, and the lower end is folded back to each of the filter cloth lower ends arranged below the lower end of the filter plate. A slit formed by sliding and inserting a slit into the cylindrical body from one end opening portion in the longitudinal direction. It is characterized in that the lower end of the filter cloth is bag-bound by holding the protruding edge formed wider so as to prevent it from being pulled out through the slit.
Further, the present invention is characterized in that a reverse hook capable of hooking the protruding edge is provided on the inner side of the cylindrical body at the side end constituting the slit, or the cylindrical body is divided into a plurality of pieces.

要するに本発明は、濾板の表裏面を被覆する濾布において、濾板下端より下方に配置される濾布下端の夫々に設けた突縁と、一条のスリットを側壁の長手方向全域に渡って穿設した筒体とから成り、該筒体内にスリットより幅広に形成した突縁をスリットを通して抜止め保持、即ち濾布下端に設けた各突縁を筒体内へこれの長手方向の一端開口部からスライド挿入してスリットからの抜脱を阻止することにより、従来の様に濾布下端に筒状収容部を形成して該筒状収容部に濾布張り棒を挿入する必要もなく、簡単容易に濾布下端を袋綴じして濾板各面上に濾布を緊張状態に保持できる。
濾布下端の袋綴じの解除も、単に筒体を濾布に対しスライドさせて濾布から筒体を引き離すだけで成し得るので、従来に比し濾布下端の接続作業のみならず、その接続解除作業をも飛躍的に向上できる。
In short, according to the present invention, in the filter cloth covering the front and back surfaces of the filter plate, the protruding edge provided on each of the lower ends of the filter cloth disposed below the lower end of the filter plate, and a single slit across the entire longitudinal direction of the side wall. A projecting edge that is wider than the slit in the cylinder, and holds and holds the protruding edge through the slit. That is, each protruding edge provided at the lower end of the filter cloth is inserted into the cylindrical body at one end in the longitudinal direction thereof. It is easy to insert the filter cloth tensioning rod into the cylindrical housing part without the need to form a cylindrical housing part at the lower end of the filter cloth as in the prior art by preventing the slide from being inserted and sliding out from the slit. The lower end of the filter cloth can be easily bound and the filter cloth can be held in tension on each side of the filter plate.
The bag binding at the lower end of the filter cloth can be released simply by sliding the cylinder body with respect to the filter cloth and pulling the cylinder away from the filter cloth. The disconnection work can be greatly improved.

濾布において濾板下端に相当する部位と突縁との間に排水穴を貫設したので、フィルタプレスの濾過中に濾板から流下する濾水が袋綴じされる濾布下端側に溜まることなく、水捌けを良好にし、濾布への負担を軽減できる。   Since a drainage hole is provided between the part corresponding to the lower end of the filter plate and the protruding edge of the filter cloth, the filtrate flowing down from the filter plate during the filtration of the filter press must be collected at the lower end of the filter cloth where the bag is bound. In addition, water drainage can be improved and the load on the filter cloth can be reduced.

突縁は濾布の下端を折り返して縫製したので、突縁として濾布とは別材料品を用いる必要がなく、突縁形成の縫製自体も比較簡単に成し得るため、よりコストを低減できる。   Since the protruding edge is sewed with the lower end of the filter cloth folded back, it is not necessary to use a material different from the filter cloth as the protruding edge, and the sewing itself for forming the protruding edge can be made comparatively easily, so the cost can be further reduced. .

筒体においてスリットを構成する側端の筒体内側に上記突縁が掛止可能な逆鉤を突設したので、筒体内に配置した突縁をその内部により一層強固に保持できる。   Since the above-described reverse hook capable of hooking the protruding edge is provided inside the cylindrical body at the side end constituting the slit in the cylindrical body, the protruding edge arranged in the cylindrical body can be held more firmly inside.

筒体は複数本に分割形成したので、濾布幅と同一長の長尺な一本の筒体を濾布下端にスライド装着するよりも、短尺な筒体の方が簡単に濾布下端にスライド装着及び離脱できるから、短尺な筒体が複数本であっても結果的に短時間で効率的にその取り付け及び取り外し作業を成し得る等その実用的効果甚だ大である。   Since the cylinder is divided into a plurality of pieces, the short cylinder is easier to attach to the lower end of the filter cloth than to slide and attach a single long cylinder of the same length as the filter cloth width to the lower end of the filter cloth. Since the slide mounting and dismounting can be performed, even if there are a plurality of short cylinders, the practical effects such as being able to perform the attaching and detaching operations efficiently in a short time are significant.

濾布を被覆した濾板の正面図である。It is a front view of the filter plate which coat | covered the filter cloth. 図１の要部拡大縦断面図である。It is a principal part expanded longitudinal cross-sectional view of FIG. 接続前の濾布下端を示す要部拡大斜視図である。It is a principal part expansion perspective view which shows the filter cloth lower end before a connection. 濾布下端の接続状態を示す要部拡大斜視図である。It is a principal part expansion perspective view which shows the connection state of a filter cloth lower end. 他の実施例を示す要部拡大側面図である。It is a principal part expanded side view which shows another Example.

以下本発明の実施の一形態例を図面に基づいて説明する。
図に示す濾板１は、本発明に係る濾布２（図１では説明の便宜上、二点鎖線で示す。）を使用するものであって、フィルタープレスの長手方向で濾枠（図示せず）を介在する様に多数並列配置されるものにして、その表裏の濾過面（以下、単に表裏面と称する。）を面一の平面状と成した略正方形状に形成され、左右側面上方にはフィルタープレスの左右に平行配置したレール３上に走行可能に載置される支持アーム４を外方突設している。 An embodiment of the present invention will be described below with reference to the drawings.
The filter plate 1 shown in the drawing uses a filter cloth 2 (shown by a two-dot chain line in FIG. 1 for convenience of explanation) according to the present invention, and a filter frame (not shown) in the longitudinal direction of the filter press. ) Are arranged in parallel so as to intervene, and the front and back filtration surfaces (hereinafter simply referred to as front and back surfaces) are formed in a substantially square shape with a flat surface, and above the left and right side surfaces. Is provided with a support arm 4 projecting outwardly on a rail 3 arranged parallel to the left and right of the filter press so as to be able to run.

濾板１の中央には原液通過孔５を貫設すると共に、下方適所に複数の濾過排水路６を設け、表裏面の夫々には原液通過孔５に対応した透孔を中央に有する円形状の通水網板７を固着している。   The filter plate 1 is provided with a stock solution passage hole 5 in the center, and a plurality of filtration drainage channels 6 are provided at appropriate positions below, and each of the front and back surfaces has a circular hole corresponding to the stock solution passage hole 5 in the center. The water flow net plate 7 is fixed.

又、濾板１の上方には、濾布２を吊り下げる濾布吊り装置８を装備している。
濾布吊り装置８は、濾板１の上部左右に濾布吊りアーム９を外側方へ突設し、該濾布吊りアーム９の突端上部にガイド棒10を立設し、該ガイド棒10にコイル状のバネ材11を外嵌すると共に、ガイド棒10の上端を横棒12の端部に摺動自在に挿通し、これによりガイド棒10間に横棒12をバネ材11で以て弾圧的に上下動自在に架設支持している。 Further, a filter cloth hanging device 8 for hanging the filter cloth 2 is provided above the filter plate 1.
The filter cloth suspending device 8 has filter cloth suspending arms 9 projecting outward on the left and right sides of the upper part of the filter plate 1, and a guide bar 10 is erected on the upper end of the projecting end of the filter cloth suspending arm 9. The coiled spring material 11 is externally fitted, and the upper end of the guide bar 10 is slidably inserted into the end of the horizontal bar 12, so that the horizontal bar 12 is elastically pressed by the spring material 11 between the guide bars 10. It is built and supported so that it can move up and down.

そして、濾布吊り装置８の横棒12に濾布２を２つ折りに垂れ下げることにより、濾布２が濾板１の表裏面を被覆する様に成している。
尚、ガイド棒10間に架設された状態の横棒12において、ガイド棒10の挿通部位より内側には、濾布２の折り返し部に設けた鳩目（図示せず）に挿通して濾布２を位置決めするピン12ａを上方突設している。 Then, the filter cloth 2 is folded in half on the horizontal bar 12 of the filter cloth hanging device 8 so that the filter cloth 2 covers the front and back surfaces of the filter plate 1.
In the horizontal bar 12 installed between the guide bars 10, the filter cloth 2 is inserted into the eyelet (not shown) provided in the folded portion of the filter cloth 2 inside the insertion part of the guide bar 10. A pin 12a for positioning is projected upward.

濾布２は、濾板１とほぼ同幅に形成され、２つ折り状態で濾板１の上方から下方へ至る長さを有し、原液通過孔５との対応部位にはこれと略同径な透孔を設けており、濾布吊り装置８にて吊り下げられることにより、通水網板７の上から濾板１を被覆し、該濾板１の原液通過孔５に挿通したフランジ管13のフランジと原液通過孔５周縁部との間に濾布２の透孔周縁部を挟持している。   The filter cloth 2 is formed to have substantially the same width as the filter plate 1 and has a length extending from the upper side to the lower side of the filter plate 1 in a folded state. Is provided with a through hole, and is suspended by the filter cloth suspension device 8 so as to cover the filter plate 1 from above the water flow mesh plate 7 and to be inserted into the stock solution passage hole 5 of the filter plate 1. The peripheral edge of the through hole of the filter cloth 2 is sandwiched between the 13 flanges and the peripheral edge of the stock solution passage hole 5.

濾布２において、濾板下端1aより下方に配置される濾布下端の夫々には外向きの突縁14を設けている。
突縁14は濾布２の下端を外側へ折り返して縫製している。
濾布２において濾板下端1aに相当する部位と突縁14との間には、幅方向で所定間隔置きに所定形状（図示例では円形）から成る複数の排水穴15を貫設している。 In the filter cloth 2, an outward protruding edge 14 is provided at each of the lower ends of the filter cloths disposed below the lower end 1 a of the filter plate.
The protruding edge 14 is sewn by folding the lower end of the filter cloth 2 outward.
A plurality of drainage holes 15 having a predetermined shape (circular in the illustrated example) are provided at predetermined intervals in the width direction between the portion corresponding to the lower end 1a of the filter plate 2 and the protruding edge 14 in the filter cloth 2. .

そして、濾布吊り装置８の横棒12に２つ折りに垂れ下げられた濾布２は、その下端（突縁）14が筒体16にて接続される。   Then, the lower end (protruding edge) 14 of the filter cloth 2 hung in a folded manner on the horizontal bar 12 of the filter cloth hanging device 8 is connected to the cylindrical body 16.

筒体16は、プラスチック製、好ましくはポリプロピレン製にして、濾布２幅と同一長で両端が開口された断面円形状のパイプから成り、その側壁の長手方向全域（筒体16の一端から他端）に渡って一条のスリット17を穿設し、断面Ｃ型に形成される。
スリット17は、２つ折りに垂れ下げられた濾布２の各下端（濾布２の２枚分の厚みに相当）が挿通可能にして、且つ突縁14が掛止して挿通できない幅に設定されている。 The cylindrical body 16 is made of plastic, preferably polypropylene, and is made of a pipe having a circular section with the same length as the width of the filter cloth 2 and open at both ends. A single slit 17 is drilled over the end) to form a C-shaped cross section.
The slit 17 is set so that each lower end (corresponding to the thickness of the two pieces of the filter cloth 2) of the filter cloth 2 suspended in half can be inserted, and the protruding edge 14 is hooked and cannot be inserted. Has been.

そして、濾板下端1aの下方に垂れ下げられた濾布下端の各突縁14を筒体16内にスリット17を通して抜止め保持することにより濾布下端を袋綴じする。   Then, the filter cloth lower end is bag-bound by holding each protruding edge 14 of the lower end of the filter cloth hanging down below the lower end of the filter plate 1 through the slit 17 in the cylindrical body 16.

即ち、濾布下端に設けた各突縁14の内側を重ね合わせ、その一端14ａ同士を筒体16の一端開口部16ａに、突縁14の付け根の一端14ｂをスリット17の一端17ａに対応させて、濾布２に対し筒体16をこれの一端16ａが濾布２の一端2aから他端2bに一致するまでスライドさせ、各突縁14を筒体16内へ挿入してスリット17からの抜脱を阻止することにより、濾布下端を袋綴じして濾板１の表裏面上の夫々に濾布２を緊張状態に保持する（図１、３、４参照）。   That is, the inner sides of the protruding edges 14 provided on the lower end of the filter cloth are overlapped, and one ends 14a thereof correspond to one end opening 16a of the cylindrical body 16, and one end 14b of the base of the protruding edge 14 corresponds to one end 17a of the slit 17. Then, the cylindrical body 16 is slid with respect to the filter cloth 2 until one end 16a thereof coincides with one end 2a of the filter cloth 2 from the other end 2b. By preventing the removal, the lower end of the filter cloth is bound and the filter cloth 2 is held in tension on the front and back surfaces of the filter plate 1 (see FIGS. 1, 3 and 4).

又、濾布下端の袋綴じの解除（筒体６の取り外し）も、単に筒体16を濾布２に対しスライドさせて濾布２から筒体16を引き離すだけで成し得る。   Further, the bag binding at the lower end of the filter cloth can be released (removal of the cylinder body 6) by simply sliding the cylinder body 16 with respect to the filter cloth 2 and pulling the cylinder body 16 away from the filter cloth 2.

尚、濾布２において濾板下端1aに相当する部位と突縁14との間に排水穴15を貫設したのは、フィルタプレスの濾過中に濾板１の濾過排水路６から流下する濾水が、袋綴じされる濾布下端側に溜まることなく、開口している左右端2a、2bからだけでなく、各排水穴15からも排水される様にして、水捌けを良好にし、濾布２の負担を軽減するためである。   In addition, the drainage hole 15 is provided between the portion corresponding to the lower end 1a of the filter plate and the protruding edge 14 in the filter cloth 2 because the filter flows down from the filter drainage channel 6 of the filter plate 1 during the filtration of the filter press. Water does not collect on the lower end side of the filter cloth to be bound, but drains not only from the open left and right ends 2a and 2b, but also from each drain hole 15 to improve drainage and filter cloth. This is to reduce the burden of 2.

尚、筒体16は、上記の様に濾布２の幅と同一長の１本から成るのではなく、濾布２の幅より短く複数本に分割形成しても良く、この様に短くすることで濾布２に対する各筒体16のスライド挿脱作業が迅速にしてよりに簡単に行える。   The cylindrical body 16 is not composed of one piece having the same length as the width of the filter cloth 2 as described above, but may be divided into a plurality of pieces that are shorter than the width of the filter cloth 2, and thus shortened. Thus, the slide insertion / removal operation of each cylinder 16 with respect to the filter cloth 2 can be performed quickly and more easily.

又、図５には、筒体16の別例を示す。この筒体16にあっては、スリット17を構成する側端17ｂの筒体16内側に上記突縁14が掛止可能な逆鉤（かえし）18を突設し、筒体16内に配置した突縁14をその内部により一層強固に保持する。   FIG. 5 shows another example of the cylindrical body 16. In this cylinder 16, a barb 18 that can be hooked by the protruding edge 14 is provided on the inner side of the cylinder 16 at the side end 17 b constituting the slit 17, and is arranged in the cylinder 16. The protruding edge 14 is held more firmly in its interior.

本実施例にあっては、複式のフィルタープレスに用いる濾板１に２つ折りに垂れ下げられた濾布２下端の接続構造を示したが、本発明にあっては、濾枠を用いない単式のフィルタープレスの濾板にも当然ながら適用可能である。   In the present embodiment, the connection structure of the lower end of the filter cloth 2 suspended in two on the filter plate 1 used in the double filter press is shown. However, in the present invention, a single type without using a filter frame is shown. Naturally, it can be applied to the filter plate of the filter press.

１ 濾板
1a 濾板下端
２ 濾布
14 突縁
15 排水穴
16 筒体
17 スリット
17ｂ 側端
18 逆鉤 1 Filter plate
1a Lower end of filter plate 2 Filter cloth
14 Projection
15 Drainage hole
16 cylinder
17 Slit
17b side edge
18 Reverse

Claims (3)

濾板の表裏面を被覆する濾布において、濾板下端より下方に配置される濾布下端の夫々に当該下端を折り返して縫製して設けた突縁と、一条のスリットを側壁の長手方向全域に渡って穿設した筒体とから成り、該筒体内にこれの長手方向の一端開口部からスライド挿入して成るスリットより幅広に形成した突縁をスリットを通して抜止め保持することにより濾布下端を袋綴じしたことを特徴とするフィルタプレスにおける濾布下端の接続構造。 In the filter cloth covering the front and back surfaces of the filter plate, a protruding edge formed by folding and sewing the lower end of each lower end of the filter cloth disposed below the lower end of the filter plate, and a slit in the longitudinal direction of the side wall The bottom end of the filter cloth is formed by holding a protruding edge formed wider than the slit formed by sliding the cylindrical body through one end opening in the longitudinal direction thereof. A connection structure at the lower end of the filter cloth in the filter press, wherein the bag is bound. 筒体は複数本に分割形成したことを特徴とする請求項１記載のフィルタプレスにおける濾布下端の接続構造。   The connection structure of the lower end of the filter cloth in the filter press according to claim 1, wherein the cylindrical body is divided into a plurality of pieces. 筒体においてスリットを構成する側端の筒体内側に上記突縁が掛止可能な逆鉤を突設したことを特徴とする請求項１又は２記載のフィルタプレスにおける濾布下端の接続構造。   The connecting structure of the lower end of the filter cloth in the filter press according to claim 1, wherein a reverse hook capable of hooking the protruding edge is provided on the inner side of the cylindrical body of the side end constituting the slit in the cylindrical body.
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US3329195A (en) * 1965-05-24 1967-07-04 Kinkead Industries Projection screen or the like
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JPS59139906A (en) * 1983-01-27 1984-08-11 Kurita Mach Mfg Co Ltd Filter press
JP3737267B2 (en) * 1998-01-29 2006-01-18 株式会社栗田機械製作所 Filter cloth for filter press
JPH11319422A (en) * 1998-05-12 1999-11-24 Shikibo Ltd Filter cloth for filter press

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