JP2012157838A - Filter cloth for filter press - Google Patents

Filter cloth for filter press Download PDF

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JP2012157838A
JP2012157838A JP2011020389A JP2011020389A JP2012157838A JP 2012157838 A JP2012157838 A JP 2012157838A JP 2011020389 A JP2011020389 A JP 2011020389A JP 2011020389 A JP2011020389 A JP 2011020389A JP 2012157838 A JP2012157838 A JP 2012157838A
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filter
cake
filter cloth
cloth
release material
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Hiromi Kawataki
裕美 川滝
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Ishigaki Co Ltd
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Ishigaki Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a filter cloth for a filter press which improves a peelability of a cake formed between filtering plates.SOLUTION: In a filter press 1, a peeling agent 28 in a streak form is fixed on a filtration surface 10a of a filtration cloth 10 hanged between filter plates 5, 5, a cake in contact with a peeling agents 28 fixed to the filtration surface 10a of the filter cloth 10 peels off, cracks and is divided into small pieces to be discharged. Even if the cake drops off by its own weight during opening of the plates, deformation does not occur and discharge by division is possible. Also, no remaining is left after discharge, and the damage to the filtration cloth 10 and hanging materials is not caused.

Description

この発明は、フイルタープレスのろ板間に吊設するろ布に関し、ろ板間に生成したケーキの剥離性を良くするフイルタープレス用ろ布の改良に関する。 The present invention relates to a filter cloth suspended between filter plates of a filter press, and relates to an improvement of a filter fabric for a filter press that improves the peelability of a cake formed between filter plates.

従来、ろ過性の良い炭酸カルシウム、石灰などの無機質を多く含む原液を脱水すると、２０〜３０ｍｍの厚みのケーキが生成される。ろ過室に形成されたケーキは開板と同時にその自重で形崩れして、ケーキの大片がろ布の吊設部材に当接し、ろ布や吊設部材が損傷する恐れがある。又、有機物を含有する原液では、剥離性が悪くろ布に残渣が残る恐れがあり、ろ布が降下した状態でろ板が閉板し、ろ布の吊設部材を挟み込み、ろ布や吊設部材を損傷する恐れもある。
その対策として、ろ板の内壁面に格子状の突条を形成してダイアフラムを対設し、ダイアフラムが給圧された時に、ケーキを挟持する一対のろ布を接近または当接させるケーキ成形式フイルタープレスが、特許文献１に開示されている。そして、ダイアフラムのケーキ圧搾面にケーキを分割し得る複数条の突起部を設けた圧搾式圧ろ器も、特許文献２に開示されている。 Conventionally, when a stock solution containing many inorganic substances such as calcium carbonate and lime having good filterability is dehydrated, a cake having a thickness of 20 to 30 mm is generated. The cake formed in the filtration chamber is deformed by its own weight at the same time as the plate is opened, and a large piece of cake may come into contact with the hanging member of the filter cloth, and the filter cloth and the hanging member may be damaged. In addition, in the stock solution containing organic matter, the releasability is poor and the residue may remain on the filter cloth. When the filter cloth is lowered, the filter plate is closed and the filter cloth suspension member is sandwiched between the filter cloth and the suspension cloth. There is also a risk of damaging the member.
As a countermeasure, a cake-molding type that forms a grid-like ridge on the inner wall surface of the filter plate, and is provided with a diaphragm so that when a diaphragm is supplied with pressure, a pair of filter cloths that sandwich the cake approach or abut A filter press is disclosed in Patent Document 1. A squeezing type pressure filter provided with a plurality of protrusions capable of dividing the cake on the cake pressing surface of the diaphragm is also disclosed in Patent Document 2.

実公昭６１−２２６４７号公報（実用新案登録請求の範囲、図７及び図８）Japanese Utility Model Publication No. 61-22647 (request for utility model registration, FIGS. 7 and 8) 実開昭５０−５２５７８号公報（実用新案登録請求の範囲、図１及び図２）Japanese Utility Model Laid-Open No. 50-52578 (utility model registration request, FIGS. 1 and 2)

従来、ろ板に吊設するろ布を走行させ、或はろ板に吊設するろ布を振動させてろ過室に生成したケーキを剥離するフイルタープレスは公知である。ろ板の内壁面に格子状の突条を形成し、或はダイアフラムのケーキ圧搾面に複数条の突起部を設けたフイルタープレスは、可撓性を有するろ布を突起部で押圧することにより、ケーキの分割排出が可能となるものである。しかし、ろ板或はダイアフラムの前面に吊設するろ布は耐圧性と強靭性を有しており、ろ布を突起部で屈曲させるための押圧力が余分に必要となる。また、突起部でろ布を繰返し屈曲させることにより、ろ布が早期に劣化して寿命が短くなる。さらに、ろ板或いはダイアフラムに突起部を形成するための金型変更等に手間と費用がかかる。
この発明は、直接ケーキに接触するろ布に剥離材を固着し、ケーキの剥離性を改善するフイルタープレス用ろ布を提供する。 2. Description of the Related Art Conventionally, a filter press that runs a filter cloth suspended from a filter plate or vibrates a filter cloth suspended from a filter plate to peel a cake generated in a filtration chamber is known. A filter press in which grid-like ridges are formed on the inner wall surface of the filter plate, or a plurality of protrusions are provided on the cake pressing surface of the diaphragm, by pressing a flexible filter cloth with the protrusions. The cake can be divided and discharged. However, the filter cloth hung on the front surface of the filter plate or diaphragm has pressure resistance and toughness, and an extra pressing force is required to bend the filter cloth at the protrusions. In addition, by repeatedly bending the filter cloth at the protrusions, the filter cloth deteriorates early and the life is shortened. Furthermore, it takes time and money to change the mold for forming the projections on the filter plate or the diaphragm.
The present invention provides a filter cloth for a filter press in which a release material is fixed to a filter cloth that is in direct contact with the cake to improve the peelability of the cake.

この発明の要旨は、一対のガイドレールに多数のろ板を開閉自在に並列し、ろ板間にろ布を吊設してろ過室を形成し、ろ過室に生成したケーキをろ布から剥離させるフイルタープレスにおいて、ろ布のろ過面に剥離材を筋状に固着したもので、脱水後のケーキがろ布に固着しない領域を筋状に形成することによって、ケーキを分割排出するための剥離代を任意に設定でき、大片のケーキが落下することによる不具合を解消できる。   The gist of the present invention is that a large number of filter plates are opened and closed in parallel on a pair of guide rails, a filter cloth is suspended between the filter plates to form a filtration chamber, and the cake generated in the filtration chamber is peeled off from the filter cloth In a filter press, the stripping material is fixed to the filter surface of the filter cloth in a streak shape, and the strip after the dewatering cake is formed to form a streak area where the cake does not adhere to the filter cloth. The bill can be set arbitrarily, and the trouble caused by the large piece of cake falling can be solved.

剥離材を縦縞状に形成すれば、ろ布から縦長状にケーキが分割剥離され、自重で剥離し易く、落下時の衝撃も緩和される。
また、剥離材を横縞状に形成すれば、ろ布から横長状にケーキが分割剥離され、剥離時に他方のろ布やろ板に当接し難く、周辺機器に損傷を与えることが無い。 If the release material is formed in the form of vertical stripes, the cake is separated and peeled vertically from the filter cloth, easily peeled off by its own weight, and the impact at the time of dropping is alleviated.
Further, if the release material is formed in a horizontal stripe shape, the cake is divided and peeled in a horizontally long shape from the filter cloth, and it is difficult to come into contact with the other filter cloth or filter plate at the time of peeling, and the peripheral device is not damaged.

剥離材として、ろ過面に樹脂を塗布すれば、ろ布の空隙により固液分離されず、塗布面で良好な剥離性を有するケーキを生成できる。
また、剥離材として、ろ過面に低摩擦材を貼着すれば、貼着面で良好な剥離性を有するケーキを生成できる。
剥離材を山形状に突設すれば、圧搾時に山形部でケーキ厚が薄くなり、自重等により分割が容易なケーキが生成でき、粘着性のあるケーキでも残渣を残すことなく排出できる。 If a resin is applied to the filtration surface as a release material, a solid-liquid separation is not performed by the gaps in the filter cloth, and a cake having good release properties on the application surface can be generated.
Moreover, if a low friction material is stuck on the filtration surface as the release material, a cake having good peelability on the adhesion surface can be generated.
If the release material protrudes in a mountain shape, the thickness of the cake becomes thin at the time of squeezing, a cake that can be easily divided by its own weight, etc. can be generated, and even a sticky cake can be discharged without leaving a residue.

この発明に係るフイルタープレス用ろ布は上記のように構成してあり、ろ板に吊設するろ布のろ過面に剥離材を筋状に固着すれば、剥離材の表面に生成されているケーキがひび割れし、ろ過室のケーキが分割されて排出できる。開板途中にケーキが自重で落下しても剥離材の表面で分割され、大片の落下によりろ布や吊設部材を損傷することがなく、ケーキを受ける排出コンベアーの負荷も軽減できる。ろ過面の全面でケーキを付着させることがないので、残渣を残すことがない。 The filter cloth for a filter press according to the present invention is configured as described above, and is generated on the surface of the release material if the release material is fixed in a streak shape to the filtration surface of the filter cloth suspended from the filter plate. The cake cracks and the cake in the filtration chamber can be divided and discharged. Even if the cake falls by its own weight in the middle of the plate opening, it is divided on the surface of the release material, and the filter cloth and the hanging member are not damaged by the fall of the large piece, and the load on the discharge conveyor for receiving the cake can be reduced. Since the cake does not adhere to the entire filtration surface, no residue is left.

この発明に係るフイルタープレスの概略側面図である。It is a schematic side view of the filter press concerning this invention. 同じく、ろ布を走行させてケーキを剥離するフイルタープレスのろ過室の縦断面図である。Similarly, it is a longitudinal cross-sectional view of a filtration chamber of a filter press that runs a filter cloth and peels a cake. 同じく、ろ布を振動させてケーキを剥離するフイルタープレスのろ過室の縦断面図である。Similarly, it is a longitudinal cross-sectional view of a filtration chamber of a filter press that peels a cake by vibrating a filter cloth. 同じく、ろ布の正面図（ａ）と、分割排出されるケーキの概念図（ｂ）である。Similarly, it is the front view (a) of a filter cloth, and the conceptual diagram (b) of the cake discharged | emitted separately. 同じく、他の実施例のろ布の正面図（ａ）と、分割排出されるケーキの概念図（ｂ）である。Similarly, it is the front view (a) of the filter cloth of another Example, and the conceptual diagram (b) of the cake discharged | emitted separately. 同じく、他の実施例のろ布の斜視図（ａ）と、分割排出されるケーキの概念図（ｂ）である。Similarly, it is the perspective view (a) of the filter cloth of another Example, and the conceptual diagram (b) of the cake discharged | emitted separately.

本願発明の実施例を図面に基づき詳述すると、図１はガイドレールに支架したフイルタープレスの概略側面図であって、フイルタープレス１はフロントフレーム２とリアーフレーム３に一対のガイドレール４，４を橋架して多数のろ板５・・・を並列している。並列したろ板５・・・の後端部にムーバブルヘッド６を配設してリアーフレーム３に支架した締付シリンダー７に連結し、各ろ板５・・・を移行チェーン（図示せず）によって決められた所定の間隔で一斉に開板する。なお、開板装置（図示せず）によって各ろ板５・・・を順次開板してもよい。   An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic side view of a filter press supported on a guide rail. The filter press 1 has a pair of guide rails 4, 4 on a front frame 2 and a rear frame 3. A large number of filter plates 5 are arranged in parallel. A movable head 6 is disposed at the rear end of the parallel filter plates 5 and connected to a fastening cylinder 7 supported on the rear frame 3, and each filter plate 5 is connected to a transition chain (not shown). The plates are simultaneously opened at a predetermined interval determined by. In addition, you may open each filter plate 5 ... sequentially by a plate-opening apparatus (not shown).

図２はろ布を走行させてケーキを剥離するフイルタープレスのろ過室の縦断面図であって、ろ板５の上方部に駆動源に連設するスプロケット８と、ろ板５の下方部に一対のリターンロール９，９を配設してある。一対のろ布１０，１０の上端部に挿通した上部ろ布芯金１１がスプロケット８に掛け回した駆動チエーン１２の一端に連結してあり、ろ布１０，１０の下端部は一対のリターンロール９，９にそれぞれ遠ざかる方向に掛け回して、ろ板５の前後のろ過床５ａに吊設したろ布１０，１０の下端部の下部ろ布芯金１３を駆動チエーン１２の他端に連結した吊設金具１４に係止してある。駆動源に連設するスプロケット８を回動させて、開板したろ板５，５間に吊設するろ布１０を昇降自在としてある。なお、並列するろ板５・・・は、ろ板とダイアフラムろ板を交互に並列してもよいものである。
並列したろ板５・・・を閉板した時に、ろ布１０に吊設した給液板１５を前後のろ板５，５に挟持させ、ろ板５のろ過床５ａに吊設した一対のろ布１０，１０間にろ過室１６を形成させる。ろ板５の上方中央部に形成した原液供給路１７に給液板１５の原液通路１８を連通させて、ろ布１０，１０間のろ過室１６に原液を圧入して固液分離を行なう。脱水後、並列したろ板５・・・を開板し、一対のろ布１０，１０を下方に走行させる。ろ板５，５下方の一対のリターンロール９，９でそれぞれ遠ざかる方向に屈曲走行する際に、ろ布１０に付着したケーキは剥離される。なお、符号１９はろ布１０に洗浄水を噴射する洗浄ノズルである。 FIG. 2 is a longitudinal sectional view of a filtration chamber of a filter press that runs a filter cloth and peels a cake, and a pair of sprockets 8 connected to a drive source at the upper part of the filter plate 5 and a lower part of the filter plate 5. Return rolls 9, 9 are provided. An upper filter cloth mandrel 11 inserted through the upper ends of the pair of filter cloths 10 and 10 is connected to one end of a drive chain 12 wound around the sprocket 8, and the lower ends of the filter cloths 10 and 10 are a pair of return rolls. The lower filter cloth cored bar 13 at the lower end of the filter cloths 10 and 10 suspended from the filter bed 5 a before and after the filter plate 5 is connected to the other end of the drive chain 12. Locked to the hanging fitting 14. The sprocket 8 connected to the drive source is rotated so that the filter cloth 10 suspended between the opened filter plates 5 and 5 can be raised and lowered. Note that the parallel filter plates 5... May be ones in which filter plates and diaphragm filter plates are alternately arranged in parallel.
When the parallel filter plates 5 are closed, the liquid supply plate 15 suspended on the filter cloth 10 is sandwiched between the front and rear filter plates 5 and 5, and a pair of suspension plates suspended on the filter bed 5a of the filter plate 5 is provided. A filtration chamber 16 is formed between the filter cloths 10 and 10. The stock solution passage 18 of the liquid supply plate 15 is communicated with the stock solution supply path 17 formed in the upper center portion of the filter plate 5, and the stock solution is press-fitted into the filtration chamber 16 between the filter cloths 10 and 10 to perform solid-liquid separation. After dehydration, the parallel filter plates 5 are opened, and the pair of filter cloths 10 and 10 are caused to travel downward. When the pair of return rolls 9 and 9 below the filter plates 5 and 5 are bent and moved away from each other, the cake attached to the filter cloth 10 is peeled off. Reference numeral 19 denotes a cleaning nozzle that injects cleaning water onto the filter cloth 10.

図３はろ布を振動させてケーキを剥離するフイルタープレスのろ過室の縦断面図である。なお、図２と共通する部品は同番号としている。ろ板５の肩部に立設した支持杆２０にスプリング２１が挿通してあり、支持杆２０に支持バー２２を揺動可能に支架してある。支持バー２２の両側端部に内側に折り曲げた複数のストッパー２３・・・が立設してあり、ろ布１０上端部に挿通している上部ろ布芯金１１をストッパー２３に係止して、ろ板５のろ過床５ａの前面にろ布１０を吊設する。なお、ろ布１０の下端部には重錘２４を挿通している。
脱水後、並列したろ板５・・・を開板し、ケーキが付着残存するろ布１０を吊設する支持バー２２を加振してろ布１０から残渣を剥離する。 FIG. 3 is a longitudinal sectional view of a filtration chamber of a filter press that peels cake by vibrating a filter cloth. The parts common to those in FIG. A spring 21 is inserted through a support rod 20 erected on the shoulder of the filter plate 5, and a support bar 22 is swingably supported on the support rod 20. A plurality of stoppers 23... Bent inward are provided on both side end portions of the support bar 22, and the upper filter cloth core 11 inserted through the upper end portion of the filter cloth 10 is engaged with the stopper 23. The filter cloth 10 is suspended from the front surface of the filter bed 5a of the filter plate 5. A weight 24 is inserted into the lower end portion of the filter cloth 10.
After dehydration, the parallel filter plates 5 are opened, and the support bar 22 that suspends the filter cloth 10 on which the cake remains adhered is vibrated to peel the residue from the filter cloth 10.

図４はろ布の正面図（ａ）と、分割排出されるケーキの概念図（ｂ）であって、ろ板５，５間に吊設するろ布１０は、上端縁と下端縁に袋部２５，２６を形成し、それぞれ上部ろ布芯金１１及び下部ろ布芯金１３（あるいは重錘２４）を挿通してある。ろ布１０の上方中央部に通孔２７を開口し、通孔２７の下方近傍からろ布１０のろ過面１０ａに縦縞状に剥離材２８を固着してある。フイルタープレス１の大きさや原液の性状に応じて、剥離材２８の条数や幅は適宜選択できる。
剥離材２８としてろ過面１０ａに樹脂を塗布すれば、樹脂面上に形成されたケーキはろ布１０に付着しない。剥離材２８を筋状に形成しているので、ろ過面１０ａに付着しているケーキは、剥離材２８の筋に沿ってひび割れが発生し、筋に沿って小片に分割できる。また、ケーキが付着し難い低摩擦材をシート状に裁断し、ろ布１０のろ過面１０ａに貼着しても同様の効果が得られる。
縦縞状に剥離材２８を固着すると、ろ布１０に付着し易い剥離性の悪いケーキでも、ろ布１０への付着面積に対する上下方向の距離が長くなるので、自重により剥離しやすくなる。したがって、粘着性のあるケーキでも小さく分割されて、残渣を残すことなく排出できる。 FIG. 4 is a front view (a) of the filter cloth and a conceptual view (b) of the cake to be divided and discharged, and the filter cloth 10 suspended between the filter plates 5 and 5 has a bag portion at the upper edge and the lower edge. 25 and 26 are formed, and the upper filter cloth core 11 and the lower filter cloth core 13 (or the weight 24) are respectively inserted therethrough. A through hole 27 is opened in the upper center portion of the filter cloth 10, and a release material 28 is fixed to the filter surface 10 a of the filter cloth 10 in the form of vertical stripes from the vicinity below the through hole 27. Depending on the size of the filter press 1 and the properties of the stock solution, the number and width of the release material 28 can be appropriately selected.
If resin is applied to the filtration surface 10 a as the release material 28, the cake formed on the resin surface does not adhere to the filter cloth 10. Since the release material 28 is formed in a streak shape, the cake attached to the filtration surface 10a is cracked along the streaks of the release material 28 and can be divided into small pieces along the streaks. Further, the same effect can be obtained by cutting a low-friction material to which the cake is difficult to adhere into a sheet shape and sticking it to the filtration surface 10a of the filter cloth 10.
When the release material 28 is fixed in the form of vertical stripes, even a cake that is likely to adhere to the filter cloth 10 and has poor peelability has a longer distance in the vertical direction with respect to the adhesion area to the filter cloth 10, and is thus easily peeled by its own weight. Therefore, even a sticky cake can be divided into small pieces and discharged without leaving a residue.

図５は他の実施例のろ布の正面図（ａ）と、分割排出されるケーキの概念図（ｂ）であって、ろ過面１０ａに横縞状に剥離材２８を固着してある。
剥離性の良いケーキでは、開板時に自重でろ過面１０ａから剥離するものであるが、剥離材２８の筋に沿って分割するので、一斉に大片が落下することがない。ろ布１０や吊設部材を損傷することがなく、ケーキを受ける排出コンベアーの負荷も軽減できる。
横縞状に剥離材２８を固着すると、ろ布１０から横長状にケーキが分割剥離され、剥離性の良いケーキでも剥離材２８の筋に沿って分割するので、一斉に大片が落下することがない。したがって、剥離ケーキにより、ろ布１０や吊設部材を損傷させることがなく、ケーキを受ける排出コンベアーの負荷も軽減できる。 FIG. 5 is a front view (a) of a filter cloth according to another embodiment and a conceptual diagram (b) of a cake that is divided and discharged, and a release material 28 is fixed to the filtration surface 10a in a horizontal stripe pattern.
A cake with good peelability is peeled off from the filtration surface 10a by its own weight when it is opened, but is divided along the stripes of the release material 28, so that large pieces do not fall all at once. The filter cloth 10 and the suspension member are not damaged, and the load on the discharge conveyor that receives the cake can be reduced.
When the release material 28 is fixed in a horizontal stripe shape, the cake is divided and peeled in a horizontally long shape from the filter cloth 10, and even a cake with good peelability is divided along the stripes of the release material 28, so that large pieces do not fall at once. . Therefore, the peeling cake does not damage the filter cloth 10 or the suspension member, and the load on the discharge conveyor that receives the cake can be reduced.

図６は他の実施例のろ布の斜視図（ａ）と、分割排出されるケーキの概念図（ｂ）であって、ろ過面１０ａに固着する剥離材２８を山形状に突設してある。ろ板５，５を閉板して圧搾すれば、ろ布１０，１０間に挟持されるケーキが、山形状の剥離材２８に沿って切断分割される。ろ板５，５を開板すれば分割された小片が剥離し、大容量のケーキでも残渣を残すことなく分割排出が容易となる。剥離材２８の突設高をケーキ厚より若干低く設定し、脱水後のケーキに厚みが薄い筋を形成させることで、分割し易くしてもよい。対設するそれぞれのろ布１０，１０に配設する場合は、同位置に突設しても筋条毎に交互に配設してもよい。また、どちらか一方のろ布１０に配設してもよい。突設高は、原液性状やケーキ厚により適宜選択できる。 FIG. 6 is a perspective view (a) of a filter cloth of another embodiment and a conceptual diagram (b) of a cake that is divided and discharged, and a release material 28 that is fixed to the filtration surface 10a is projected in a mountain shape is there. If the filter plates 5 and 5 are closed and squeezed, the cake sandwiched between the filter cloths 10 and 10 is cut and divided along the mountain-shaped release material 28. If the filter plates 5 and 5 are opened, the divided pieces are peeled off, and even a large-capacity cake can be easily divided and discharged without leaving a residue. The protruding height of the release material 28 may be set slightly lower than the cake thickness, and a thin stripe may be formed on the dehydrated cake to facilitate division. When arrange | positioning to each filter cloth 10 and 10 to provide, you may arrange | position to every streak alternately even if it protrudes in the same position. Moreover, you may arrange | position to either one filter cloth 10. FIG. The protruding height can be appropriately selected depending on the properties of the stock solution and the cake thickness.

上記の実施例の組み合わせでケーキの剥離性を良くするフイルタープレス用ろ布を構成してもよい。例えば、ろ過面１０ａに縦縞状と横縞状に樹脂を塗布するか、あるいは縦縞状に剥離材２８を突設して横縞状に低摩擦材を貼着することで、ケーキを格子状の小片に分割することができる。 You may comprise the filter cloth for filter press which improves the peelability of a cake with the combination of said Example. For example, by applying a resin in the form of vertical stripes and horizontal stripes on the filtration surface 10a, or by projecting a release material 28 in the form of vertical stripes and sticking a low friction material in the form of horizontal stripes, the cake is made into lattice-like pieces. Can be divided.

この発明に係るフイルタープレス用ろ布は上記のように構成してあり、ろ板間に吊設するろ布のろ過面に筋状の剥離材を固着したもので、ろ板間を開板すれば、ろ布のろ過面に筋状に固着した複数の剥離材でろ布に挟持するケーキを分割し、形崩れすることなくろ過室の分割ケーキを排出でき、ろ布や吊設部材の損傷を防止して、ケーキを受ける排出コンベアーなどの負荷も軽減できる。また、ろ布に剥離材を固着するので、手間もコストもかからない。従って、この発明は、大容量のケーキの分割排出が可能となり、ろ過性の良い無機質を多く含むケーキだけでなく、粘着性のあるケーキでも残渣を残すことなく分割排出が容易となり、大型のフイルタープレス、及び多室型のフイルタープレスにも適用できる。 The filter press filter cloth according to the present invention is configured as described above, and a strip-like release material is fixed to the filter surface of the filter cloth suspended between the filter plates. The cake that is sandwiched between the filter cloths can be divided with multiple stripping materials fixed in a streak pattern on the filtration surface of the filter cloth, and the divided cake in the filtration chamber can be discharged without losing its shape, preventing damage to the filter cloth and suspension members. Thus, the load on the discharge conveyor for receiving the cake can be reduced. Moreover, since the release material is fixed to the filter cloth, neither labor nor cost is required. Therefore, the present invention makes it possible to divide and discharge large-capacity cakes, and not only cakes containing a large amount of inorganic matter with good filterability, but also sticky cakes can be easily evacuated without leaving a residue, and large filters It can also be applied to presses and multi-chamber type filter presses.

４ ガイドレール
５ ろ板
１０ ろ布
１０ａ ろ過面
１６ ろ過室
２８ 剥離材 4 Guide rail 5 Filter plate 10 Filter cloth 10a Filtration surface 16 Filtration chamber 28 Release material

Claims (6)

一対のガイドレール（４，４）に多数のろ板（５・・・）を開閉自在に並列し、ろ板（５，５）間にろ布（１０）を吊設してろ過室（１６）を形成し、ろ過室（１６）に生成したケーキをろ布（１０）から剥離させるフイルタープレスにおいて、
ろ布（１０）のろ過面（１０ａ）に剥離材（２８）を筋状に固着したことを特徴とするフイルタープレス用ろ布。 A large number of filter plates (5...) Are opened and closed in parallel with the pair of guide rails (4, 4), and a filter cloth (10) is suspended between the filter plates (5, 5) to filter the filtration chamber (16 In a filter press in which the cake formed in the filtration chamber (16) is peeled from the filter cloth (10),
A filter cloth for a filter press, characterized in that a release material (28) is fixed in a streak-like manner to the filtration surface (10a) of the filter cloth (10). 上記剥離材（２８）を縦縞状に形成したことを特徴とする請求項１に記載のフイルタープレス用ろ布。 The filter cloth for a filter press according to claim 1, wherein the release material (28) is formed in a vertical stripe shape. 上記剥離材（２８）を横縞状に形成したことを特徴とする請求項１または２に記載のフイルタープレス用ろ布。 The filter cloth for a filter press according to claim 1 or 2, wherein the release material (28) is formed in a horizontal stripe shape. 上記剥離材（２８）は、ろ過面（１０ａ）に樹脂を塗布したことを特徴とする請求項１乃至３の何れか１項に記載のフイルタープレス用ろ布。 The filter material for a filter press according to any one of claims 1 to 3, wherein the release material (28) has a resin applied to the filtration surface (10a). 上記剥離材（２８）は、ろ過面（１０ａ）に低摩擦材を貼着したことを特徴とする請求項１乃至３の何れか１項に記載のフイルタープレス用ろ布。 The filter cloth for a filter press according to any one of claims 1 to 3, wherein the release material (28) has a low friction material adhered to the filtration surface (10a). 上記剥離材（２８）を山形状に突設させることを特徴とする請求項１乃至５の何れか１項に記載のフイルタープレス用ろ布。 The filter cloth for a filter press according to any one of claims 1 to 5, wherein the release material (28) is projected in a mountain shape.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7220342B1 (en) 2021-12-24 2023-02-10 株式会社笹山工業所 Filter plates for filter press equipment and filter press equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59154311U (en) * 1983-03-30 1984-10-16 日本メクトロン株式会社 Filter cloth for filter press
JPS6122647Y2 (en) * 1979-12-03 1986-07-08
JPH0515707A (en) * 1991-07-16 1993-01-26 Ishigaki Mech Ind Co Device for separating cake of filter press
JP2006061820A (en) * 2004-08-26 2006-03-09 Nichicon Corp Filter cloth structure for removing sludge cake of filter press

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6122647Y2 (en) * 1979-12-03 1986-07-08
JPS59154311U (en) * 1983-03-30 1984-10-16 日本メクトロン株式会社 Filter cloth for filter press
JPH0515707A (en) * 1991-07-16 1993-01-26 Ishigaki Mech Ind Co Device for separating cake of filter press
JP2006061820A (en) * 2004-08-26 2006-03-09 Nichicon Corp Filter cloth structure for removing sludge cake of filter press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7220342B1 (en) 2021-12-24 2023-02-10 株式会社笹山工業所 Filter plates for filter press equipment and filter press equipment
JP2023095733A (en) * 2021-12-24 2023-07-06 株式会社笹山工業所 Filter plate for filter press apparatus and filter press apparatus

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