JP5369059B2 - Horizontal filter plate filter with multi-stage stirrer - Google Patents

Horizontal filter plate filter with multi-stage stirrer Download PDF

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JP5369059B2
JP5369059B2 JP2010166824A JP2010166824A JP5369059B2 JP 5369059 B2 JP5369059 B2 JP 5369059B2 JP 2010166824 A JP2010166824 A JP 2010166824A JP 2010166824 A JP2010166824 A JP 2010166824A JP 5369059 B2 JP5369059 B2 JP 5369059B2
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一夫 岩城
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Mitsubishi Kakoki Kaisha Ltd
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Description

本発明は、水平濾板式濾過機の加圧濾過室に攪拌機を設けた多段の攪拌機付水平濾板式濾過機に関する。 The present invention relates to a multistage horizontal filter plate filter with a stirrer provided with a stirrer in a pressure filtration chamber of a horizontal filter plate filter.

従来の多段水平濾板式濾過機２０は、図８に示すように、下部濾板９ａと、複数の中間濾板９ｂ，９ｂ…と、加圧板（上部濾板）９ｃを有しており、この下部濾板９ａと中間濾板９ｂ…と上部濾板９ｃが上下動のガイドとなるガイドロッド１２，１２…に挿通されて、上下方向に積層されている。また、下部濾板９ａと中間濾板９ｂ、中間濾板９ｂと中間濾板９ｂ、中間濾板９ｂと加圧板９ｃの間には図示しない空洞の濾過室が形成されている。下部濾板９ａは、濾過された液を回収する機能があり、加圧板９ｃは、原液を受け入れる機能があり、中間濾板９ｂは、それぞれ両方の機能を有している。これらをまとめて濾板スタック９と称する。
さらに、この濾板スタック９の隣接した右スペースには、濾材ラック１７が配置され、回転自在に複数の濾材ロール１７ａ，１７ａ…が配設されている。この濾材ロール１７ａには濾材１８がロール状に巻き取られており、濾材１８を各濾板９ａ，９ｂ…の上面に、一方（右側）から他方（左側）へ供給する供給装置になっている。
また、この濾板スタック９の隣接した左スペースには、濾材エキストラクタ１９が配置され、濾材１８が排出ロール装置１９ａにより各濾板９ａ，９ｂ…の上面から引き出し、機外に排出する。 As shown in FIG. 8, the conventional multi-stage horizontal filter plate type filter 20 has a lower filter plate 9a, a plurality of intermediate filter plates 9b, 9b..., And a pressure plate (upper filter plate) 9c. The lower filter plate 9a, intermediate filter plate 9b,... And upper filter plate 9c are inserted through guide rods 12, 12,. A hollow filtration chamber (not shown) is formed between the lower filter plate 9a and the intermediate filter plate 9b, the intermediate filter plate 9b and the intermediate filter plate 9b, and the intermediate filter plate 9b and the pressure plate 9c. The lower filter plate 9a has a function of collecting the filtered liquid, the pressure plate 9c has a function of receiving the stock solution, and the intermediate filter plate 9b has both functions. These are collectively referred to as a filter plate stack 9.
Further, in the right space adjacent to the filter plate stack 9, a filter medium rack 17 is disposed, and a plurality of filter medium rolls 17a, 17a,. A filter medium 18 is wound around the filter medium roll 17a so as to supply the filter medium 18 from one side (right side) to the other side (left side) on the upper surface of each filter plate 9a, 9b. .
Further, a filter medium extractor 19 is disposed in the adjacent left space of the filter plate stack 9, and the filter medium 18 is drawn out from the upper surface of each filter plate 9a, 9b,.

積層した下段濾板９ａ、中間９ｂおよび加圧板９ｃが上方の加圧ジャッキ１６により押圧され、密閉状態の濾過室の濾材１８上に原液が供給されて、濾過処理が開始される。
濾過処理が開始されて、次第に濾材１８の濾過抵抗が増加して濾過困難となると、原液の供給が停止され、加圧ジャッキ１６が駆動して、中間濾板９ｂ…と加圧板９ｃを上方へ引き上げて、下部濾板９ａと中間濾板９ｂ、中間濾板９ｂと中間濾板９ｂ、中間濾板９ｂと加圧板９ｃの間に隙間を作り、濾材１８を右から左へ移動することにより濾板９ｂ、加圧板９ｃ上に新しい濾材１８を供給し、使用済みの濾材１８を排出して入れ替える。
このようにして濾過処理を自動的に繰り返すことができるシュナイダー方式とも呼ばれる多段水平濾板式濾過機２０が知られている（例えば、特許文献１参照）。
なお、通常、前記した水平濾板式濾過機は設置面積を小さくする目的で、一段当たりの濾過面積を適当なサイズに設け、多段に構成して全体の濾過面積を大きくして所要の濾過能力を実現する場合が多いが、基本的構成および作用効果は単段でも同様である。 The laminated lower filter plate 9a, intermediate 9b and pressure plate 9c are pressed by the upper pressure jack 16, the stock solution is supplied onto the filter medium 18 in the sealed filtration chamber, and the filtration process is started.
When the filtration process is started and the filtration resistance of the filter medium 18 gradually increases and the filtration becomes difficult, the supply of the undiluted solution is stopped, the pressure jack 16 is driven, and the intermediate filter plate 9b and the pressure plate 9c are moved upward. Pull up to create a gap between the lower filter plate 9a and the intermediate filter plate 9b, the intermediate filter plate 9b and the intermediate filter plate 9b, the intermediate filter plate 9b and the pressure plate 9c, and move the filter medium 18 from right to left. A new filter medium 18 is supplied onto the plate 9b and the pressure plate 9c, and the used filter medium 18 is discharged and replaced.
A multi-stage horizontal filter plate filter 20 called a Schneider system that can automatically repeat the filtration process in this way is known (see, for example, Patent Document 1).
In general, the horizontal filter plate type filter described above is provided with an appropriate size of filtration area per stage for the purpose of reducing the installation area, and is configured in multiple stages to increase the overall filtration area to obtain the required filtration capacity. In many cases, the basic configuration and operational effects are the same even in a single stage.

濾過処理する原液の供給は、図８に示すように、原液タンク１３からポンプ１３ａを介して供給され、原液供給ヘッダー１４に通される。この原液供給ヘッダー１４と各濾過室とは耐圧ホース１５，１５によって接続され、濾過室に原液が供給される。
また、濾板９ａ，９ｂ内の濾材１８により濾過された濾液は、図示しない排液口からホースを介して濾液タンクに排出される。
このように、原液の供給、濾過、濾材の交換等の動作は全自動で繰り返しできることから、高効率で濾過ができる濾過機として広く知られている（例えば、特許文献２参照）。 As shown in FIG. 8, the supply of the stock solution to be filtered is supplied from the stock solution tank 13 via the pump 13a and passed through the stock solution supply header. The stock solution supply header 14 and each filtration chamber are connected by pressure-resistant hoses 15 and 15, and the stock solution is supplied to the filtration chamber.
The filtrate filtered by the filter medium 18 in the filter plates 9a and 9b is discharged from a drain port (not shown) to a filtrate tank through a hose.
As described above, since operations such as supply of raw solution, filtration, and replacement of filter media can be automatically repeated, it is widely known as a filter capable of highly efficient filtration (see, for example, Patent Document 2).

ところで、近年、レアメタル（希少金属）の回収のほか、金属粉の濾過、ケーキ中の触媒回収等に多段式水平濾板式濾過機が利用されるケースが増えてきており、より効率の高い有価物の回収装置が求められている。   By the way, in recent years, in addition to the collection of rare metals (rare metals), multi-stage horizontal filter plate filters are increasingly used for filtering metal powder and collecting catalyst in cakes. There is a need for a recovery device.

特開平９−１０５１３号公報（図７）JP-A-9-10513 (FIG. 7) 特開２００４−９０１４号公報（段落００１１〜２９、図２）Japanese Patent Laying-Open No. 2004-9014 (paragraphs 0011 to 29, FIG. 2)

しかしながら、レアメタル等の金属粉や触媒を含んだスラリーは、濾過した後、通気乾燥すると割れ（クラック）が入ってしまい、その後の洗浄液および脱液用空気が割れ目から抜けてしまうため、ケーキ洗浄がうまくできないという問題があった。
また、レアメタル等の金属粉や触媒を含んだスラリーの中には、脱液後ケーキが堅く締まってしまうものもあるため、洗浄液が通りにくくなり、洗浄の時間が多くかかるという問題があった。 However, a slurry containing metal powder such as rare metal or a catalyst is cracked when filtered and then air-dried, and the subsequent cleaning liquid and deairing air escape from the cracks. There was a problem that it could not be done well.
Also, some slurries containing metal powders such as rare metals and catalysts have a problem that the cake becomes tight after dehydration, which makes it difficult for the washing liquid to pass and takes a long time for washing.

そこで、本発明は、多段の攪拌機付水平濾板式濾過機の各段にてレアメタル等の金属粉および触媒の固く締まったケーキをほぐすとともに、コンタミネーションの問題が生じることのない水平濾板式濾過機を提供することを課題とする。 Accordingly, the present invention provides a horizontal filter plate filter that loosens a metal powder such as rare metal and a cake of a catalyst that is tightly clamped in each stage of a multi-stage horizontal filter plate filter with a stirrer and that does not cause contamination problems. It is an issue to provide.

請求項１に記載された多段の攪拌機付水平濾板式濾過機（１１）は、下部濾板（１ａ）、中間濾板（１ｂ）および加圧板（１ｃ）とで構成する濾板（１）と、前記下部濾板（１ａ）の上部、前記中間濾板（１ｂ）の上部に形成された加圧濾過室（２）と、前記加圧濾過室（２）と前記中間濾板（１ｂ）および前記加圧板（１ｃ）を上下方向へ移動自在に支持するガイド（１２）と、前記ガイド（１２）に支持された前記加圧濾過室（２）の開枠・閉枠を行う加圧ジャッキ（２６）と、を備えた多段の攪拌機付水平濾板式濾過機（１１）であって、前記加圧濾過室（２）に、鏡板（８）が設けられ、前記加圧濾過室（２）に、前記原液を濾過する濾材（１８）上のケーキを攪拌・展圧する攪拌翼（７）が設けられるとともに、前記加圧濾過室（２）の前記鏡板（８）の上部に隣接して支持板（５）と機械室（３）が設けられ、前記機械室（３）内には前記攪拌翼（７）を旋回・昇降する攪拌機（６）が設けられ、前記下部濾板（１a）の上面には、前記鏡板（８）が設けられた前記加圧濾過室（２）と、前記攪拌機（６）が設けられた前記機械室（３）と、前記中間濾板（１ｂ）とが、多段に載置されることを特徴とする。 The multistage horizontal filter plate filter ( 11 ) with a stirrer according to claim 1 comprises a filter plate (1) comprising a lower filter plate (1a) , an intermediate filter plate ( 1b) and a pressure plate (1c), , the upper portion of the lower filter plate (1a), the intermediate filter plate pressure filtration chamber formed on top of the (1b) and (2), wherein said pressure filtration chamber (2) an intermediate filter plate (1b) and wherein the pressure plate (1c) and movably supports the vertical guide (12), pressurizing jacks performing Hirakiwaku-閉枠of the guide (12) supported by said pressure filtration chamber (2) ( 26), a multi-stage horizontal filter plate filter (11) with a stirrer, wherein the pressure filtration chamber (2) is provided with an end plate (8), and the pressure filtration chamber (2) the together stock filter media that filters (18) stirred pressure stirred and Exhibition cake on the wing (7) is provided, said pressure filtration chamber The end plate upper part supported adjacent plate (8) 2) (5) and machine room (3) is provided, wherein the machine room (3) stirrer pivoting-lifting the stirrer blade (7) is in the (6) is provided , and on the upper surface of the lower filter plate (1a), the pressure filtration chamber (2) provided with the end plate (8) and the machine room provided with the stirrer (6) are provided. (3) and the intermediate filter plate (1b) are placed in multiple stages .

請求項１に係る発明によれば、多段の加圧濾過室にそれぞれ鏡板が設けられ、加圧濾過室に原液を濾過する濾材上のケーキを攪拌・展圧する攪拌翼が設けられるとともに、加圧濾過室の鏡板の上部にはそれぞれ支持板が設けられ、支持板には攪拌翼を旋回・昇降する攪拌機が設けられたことにより、例えばレアメタルのような希少金属の場合であっても、その固まりをほぐし、固まりを無くすことが多段でできる。また、攪拌機による攪拌によりケーキの通気乾燥の際に発生するクラック（割れ）を潰すことができるので、空気漏れがなく、通気乾燥を高めることが多段でできる多段の攪拌機付水平濾板式濾過機を提供することができる。
さらに、下部濾板の上面には、鏡板が設けられた加圧濾過室と、攪拌機が設けられた機械室と、中間濾板とが、多段に載置されることにより、多段の数だけ、濾過効率を倍増することができる。 According to the first aspect of the present invention, each of the multistage pressure filtration chambers is provided with an end plate, and the pressure filtration chamber is provided with a stirring blade that stirs and spreads the cake on the filter medium for filtering the stock solution. A support plate is provided on the upper part of the end plate of the filtration chamber, and the support plate is provided with a stirrer that swirls and lifts the stirring blade , so that even if it is a rare metal such as a rare metal, It is possible to loosen and eliminate the mass in multiple stages. In addition, since the cracks that occur during aeration drying of the cake can be crushed by stirring with a stirrer, there is no air leakage and a multi-stage horizontal filter plate filter with a stirrer that can enhance aeration drying in multiple stages Can be provided.
Furthermore, on the upper surface of the lower filter plate, a pressure filtration chamber provided with a mirror plate, a machine room provided with a stirrer, and an intermediate filter plate are placed in multiple stages, so that the number of stages is Filtration efficiency can be doubled .

また、加圧濾過室に鏡板が設けられたことにより、鏡板は加圧に強く、しかも、円鼓状に形成されたことにより、残渣の残るような曲げＲの小さなコーナー部がないため、捌けがよく、コンタミネーションの問題は生じにくい。 Further, since the mirror plate is provided in a pressurized filtration chamber, the end plate is strongly pressurized, moreover, by being formed in a circular drum-shaped, since bending is no small corners of R as remainder of the residue, Profits are good and contamination problems are less likely to occur.

さらに、加圧濾過室の鏡板の上部には支持板が設けられ、支持板には前記攪拌翼を旋回・昇降する攪拌機が設けられたことにより、加圧濾過室の多段化が可能になる。 Furthermore , a support plate is provided on the upper part of the end plate of the pressure filtration chamber, and the support plate is provided with a stirrer for turning and raising / lowering the agitation blade, thereby enabling the pressure filtration chamber to be multi-staged.

本発明の単段の濾板の攪拌機付水平濾板式濾過機の正面を示す断面図である。It is sectional drawing which shows the front of the horizontal filter plate type filter with a stirrer of the single stage filter plate of this invention. 本発明の単段の濾板の攪拌機付水平濾板式濾過機の側面を示す断面図である。It is sectional drawing which shows the side surface of the horizontal filter plate type filter with a stirrer of the single stage filter plate of this invention. 本発明の濾板の攪拌機付水平濾板式濾過機の平面を示し、図１、図４に示すＡ−Ａ線の断面図である。The plane of the horizontal filter plate type filter with a stirrer of the filter plate of this invention is shown, and it is sectional drawing of the AA line shown to FIG. 1, FIG. 本発明の多段の濾板の攪拌機付水平濾板式濾過機の正面を示し、一部破断した断面図である。It is sectional drawing which showed the front of the horizontal filter plate type filter with a stirrer of the multistage filter plate of this invention, and was partly fractured | ruptured. 本発明の多段の濾板の攪拌機付水平濾板式濾過機の側面を示し、一部破断した断面図である。It is sectional drawing which showed the side surface of the horizontal filter plate type filter with a stirrer of the multistage filter plate of this invention, and was partly fractured | ruptured. 本発明の多段の濾板の攪拌機付水平濾板式濾過機を示し、濾材交換の際、濾板に隙間ができた開枠状態を示す拡大正面図である。It is a horizontal filter plate type filter with a stirrer of the multistage filter plate of the present invention, and is an enlarged front view showing an open frame state in which a gap is formed in the filter plate when the filter medium is replaced. 本発明の多段の濾板の攪拌機付水平濾板式濾過機を示し、濾材交換後閉枠状態になり、ケーキの攪拌状況を示す拡大正面図である。It is a horizontal filter plate type filter with a stirrer of the multi-stage filter plate of the present invention, and is an enlarged front view showing a stirring state of the cake after being replaced by a closed frame after the filter medium is replaced. 従来の多段水平濾板式濾過機を示す側面図である。It is a side view which shows the conventional multistage horizontal filter plate type filter.

本発明の攪拌機付水平濾板式濾過機１０の一実施の形態について、図面を参照して詳細に説明する。攪拌機付水平濾板式濾過機１０は、レアメタル（希少金属）等を含んだスラリーの濾過に好適な濾過機である。
図１〜３に示すように、攪拌機付水平濾板式濾過機１０は、単段の濾板１と、この濾板１に載置され、鏡板８を備えた加圧濾過室２と、この加圧濾過室２を上下方向へ移動自在に挿通させるガイド１２と、ガイド１２に挿通されて加圧濾過室２の開枠と閉枠を行う加圧ジャッキ２６とを備え、加圧濾過室２に原液を濾過して生成された濾材１８上のケーキを攪拌・展圧する攪拌翼７を設けている。
また、攪拌機付水平濾板式濾過機１０は、ベース２１の上に下部濾板１aが載置され、下部濾板１aの上面には、加圧濾過室２が載置されている。加圧濾過室２は、ここでは、例えば一段で構成する。
この加圧濾過室２の上部は、機械室３が形成され、さらに、最上部には均等に加圧ジャッキ２６の力を伝える役目をする加圧板１ｃが載置されている。 An embodiment of a horizontal filter plate filter 10 with a stirrer of the present invention will be described in detail with reference to the drawings. The horizontal filter plate type filter 10 with a stirrer is a filter suitable for filtering a slurry containing rare metal (rare metal) and the like.
As shown in FIGS. 1 to 3, a horizontal filter plate type filter 10 with a stirrer includes a single-stage filter plate 1, a pressure filtration chamber 2 mounted on the filter plate 1 and provided with a mirror plate 8, The pressure filtration chamber 2 includes a guide 12 that allows the pressure filtration chamber 2 to be movably inserted in the vertical direction, and a pressure jack 26 that is inserted through the guide 12 to open and close the pressure filtration chamber 2. A stirring blade 7 is provided for stirring and spreading the cake on the filter medium 18 produced by filtering the stock solution.
Further, in the horizontal filter plate type filter 10 with a stirrer, a lower filter plate 1a is placed on a base 21, and a pressure filtration chamber 2 is placed on the upper surface of the lower filter plate 1a. Here, the pressure filtration chamber 2 is composed of, for example, one stage.
A machine room 3 is formed at the upper part of the pressure filtration chamber 2, and a pressure plate 1 c serving to transmit the force of the pressure jack 26 is placed on the uppermost part.

図４，５（図３は同様のため、共に使用する）に示すように、多段の場合の攪拌機付水平濾板式濾過機１１は、複数段の濾板１と、それぞれの濾板１に載置された、鏡板８を備えた各加圧濾過室２，２…と、この加圧濾過室２，２…を上下方向へ移動自在に挿通させるガイド１２と、ガイド１２に挿通されて加圧濾過室２，２…の開枠と閉枠を行う加圧ジャッキ２６とを備え、各加圧濾過室２，２…には、原液を濾過して生成された濾材１８上のケーキを攪拌・展圧する攪拌翼７を設けている。
多段の攪拌機付水平濾板式濾過機１１は、ベース２１の上に下部濾板１aが載置され、下部濾板１aの上面には、加圧濾過室２と機械室３、中間濾板１ｂとが繰り返し複数ずつ載置されている。図４，５は中間部を大きく破断した図になっており、ここでは、例えば全体では３段からなる攪拌機付水平濾板式濾過機１１となっている。
最上部の加圧板１ｃは、均等に力を伝える加圧する働きをしている。
以下、図３、図４、図５を参照しながら詳細に説明する。 As shown in FIGS. 4 and 5 (FIG. 3 is used for the same reason), a horizontal filter plate type filter 11 with a stirrer in the case of multiple stages is mounted on a plurality of filter plates 1 and each filter plate 1. The pressurizing filtration chambers 2, 2... Equipped with the end plate 8, the guides 12 for inserting the pressurizing filtration chambers 2, 2,. A pressure jack 26 for opening and closing the filtration chambers 2, 2... Is provided. In each of the pressure filtration chambers 2, 2,..., The cake on the filter medium 18 produced by filtering the stock solution is stirred. A stirrer blade 7 for spreading pressure is provided.
A multi-stage horizontal filter plate filter 11 with a stirrer has a lower filter plate 1a mounted on a base 21. On the upper surface of the lower filter plate 1a, a pressure filter chamber 2, a machine chamber 3, an intermediate filter plate 1b, Are repeatedly placed one by one. 4 and 5 are drawings in which the middle part is largely broken, and here, for example, the whole is a horizontal filter plate type filter 11 with a stirrer having three stages.
The uppermost pressure plate 1c serves to pressurize the force evenly.
Hereinafter, a detailed description will be given with reference to FIGS. 3, 4, and 5.

＜濾板の構成＞
濾板１は、平板であって、上面に窪みと側面に、窪みに溜まった濾液を排水する排液口１ｆが形成されている。また、濾板１は、窪みに収納されて濾板１の上面を被覆する濾材を支持する金網等のスペーサを備えている。
濾板１は、下部に１つの下部濾板１ａと、複数の中間濾板１ｂとにより構成されている。濾板１の材質は特に限定されないが、例えば、処理液が酸性であれば、特に金属にこだわらず、樹脂やゴムライニングの構造部材で形成されることが望ましい。濾板１は、リブを設けて強度を有する厚み１００ｍｍの平板である。濾板１は、上面に１０〜２０ｍｍほどの窪みを有し、この窪みに金網等のスペーサが挿着されて濾材１８を支持し、この濾材１８によって濾過した濾液を一箇所に集めて排液口１ｆから機外に排出する処理板である。この濾板１は、例えば３枚（３段）から構成されており、正方形または矩形をした枠型から形成されている。従来の多段水平濾板式濾過機２０の濾板９との相違点は、濾板９の積み上げにより、濾板９内に濾過室の空間を確保しているのに対して、攪拌機付水平濾板式濾過機１１（１０）の場合は、下部濾板１ａと中間濾板１ｂとの間に、加圧濾過室２と機械室３を設けている。 <Configuration of filter plate>
The filter plate 1 is a flat plate, and has a recess on the upper surface and a drainage port 1f for draining the filtrate accumulated in the recess on the side surface. Moreover, the filter plate 1 includes a spacer such as a wire mesh that supports a filter medium that is housed in a recess and covers the upper surface of the filter plate 1.
The filter plate 1 includes a lower filter plate 1a and a plurality of intermediate filter plates 1b at the lower part. The material of the filter plate 1 is not particularly limited. For example, if the treatment liquid is acidic, it is desirable that the filter plate 1 is formed of a structural member such as a resin or a rubber lining regardless of metal. The filter plate 1 is a flat plate having a thickness of 100 mm that is provided with ribs and has strength. The filter plate 1 has a depression of about 10 to 20 mm on the upper surface, and a spacer such as a wire mesh is inserted into the depression to support the filter medium 18, and the filtrate filtered by the filter medium 18 is collected in one place and drained. It is a processing plate discharged from the mouth 1f to the outside of the apparatus. The filter plate 1 is composed of, for example, three sheets (three stages) and is formed from a square or rectangular frame shape. The difference between the conventional multistage horizontal filter plate type filter 20 and the filter plate 9 is that the filter plates 9 are stacked to secure a space for the filter chamber in the filter plate 9, whereas the horizontal filter plate type with a stirrer is provided. In the case of the filter 11 (10), the pressure filtration chamber 2 and the machine chamber 3 are provided between the lower filter plate 1a and the intermediate filter plate 1b.

＜加圧濾過室の構成＞
加圧濾過室２は、加圧しながら濾過する部屋であり、下部濾板１ａの上面、中間濾板１ｂの上面に開枠・閉枠自在に載置されている。加圧濾過室２は、耐圧と液漏れがない密閉構造になっており、また、残留するケーキ１８ａ（図６参照）の形状が矩形に形成されるため、４隅（コーナー）に後記する攪拌翼７により、攪拌できない領域が生じる。このため、濾過効率が若干低下する。
これを解消すべく、図４に示すように、加圧濾過室２に鏡板８を設けてもよい。この鏡板８を設けたことにより、残留するケーキ１８ａ（図７参照）の形状が円形に形成されるため、後記する攪拌翼７により、満遍なく攪拌・展圧することができる。また、鏡板８の中は加圧に強い加圧室となるため、この鏡板８の設置により、加圧濾過室２自体の加圧対策が不要にできる。したがって、鏡板８を設けた場合は、加圧濾過室２の鏡板３の外側は密閉構造でなくても構わない。 <Configuration of pressure filtration chamber>
The pressure filtration chamber 2 is a chamber that performs filtration while being pressurized, and is placed on the upper surface of the lower filter plate 1a and the upper surface of the intermediate filter plate 1b so as to be freely opened and closed. The pressure filtration chamber 2 has a sealed structure with no pressure resistance and no liquid leakage, and the shape of the remaining cake 18a (see FIG. 6) is formed in a rectangular shape. A region where stirring cannot be performed is generated by the blade 7. For this reason, filtration efficiency falls a little.
In order to eliminate this, as shown in FIG. 4, an end plate 8 may be provided in the pressure filtration chamber 2. By providing the end plate 8, the shape of the remaining cake 18 a (see FIG. 7) is formed in a circular shape, so that stirring and pressure can be uniformly applied by the stirring blade 7 described later. Moreover, since the inside of the end plate 8 is a pressurizing chamber that is resistant to pressurization, the installation of the end plate 8 can eliminate the need for pressurizing the pressurizing filtration chamber 2 itself. Therefore, when the end plate 8 is provided, the outer side of the end plate 3 of the pressure filtration chamber 2 may not have a sealed structure.

加圧濾過室２は、濾板１から分離し、加圧可能な密閉された室を形成しており、圧力が漏れないように機密性を高めている。加圧濾過室２は、レアメタル（希少金属）等を含んだ原液の濾過が効率よく濾過するように、例えば、約０．５〜１．０Ｍｐａ（５〜１０ｋｇｆ／ｃｍ２）の気圧に対して漏れないような密閉性を高めた密閉構造になっている。 The pressure filtration chamber 2 is separated from the filter plate 1 to form a sealed chamber that can be pressurized, and enhances confidentiality so that the pressure does not leak. The pressure filtration chamber 2 is, for example, about atmospheric pressure of about 0.5 to 1.0 Mpa (5 to 10 kgf / cm 2 ) so that the filtration of the stock solution containing rare metal (rare metal) can be efficiently filtered. It has a sealed structure with improved sealing to prevent leakage.

＜機械室＞
機械室３は、加圧濾過室２の攪拌翼７を駆動する駆動装置である。機械室３は、加圧濾過室２の支持板５により攪拌機６の電動モータ６ａと減速機６ｂが支持されている。 <Machine room>
The machine chamber 3 is a drive device that drives the stirring blade 7 of the pressure filtration chamber 2. In the machine chamber 3, the electric motor 6 a and the speed reducer 6 b of the stirrer 6 are supported by the support plate 5 of the pressure filtration chamber 2.

＜攪拌機の構成＞
攪拌機６は、機械室３に設けられた減速機６ｂ付の電動モータ６ａであり、図示しないウォームとウォームホイールによって減速するとともに、回転方向を直角に変換し、攪拌機６の主軸７ａに回転力を伝達する。攪拌機６は支持板５に支持され、固定されている。主軸７ａの回転数は、毎分１０〜２０回転であるが、これ以外であってもよい。
また、撹拌機６は上昇・下降可能な機構が具備されている。 <Configuration of agitator>
The stirrer 6 is an electric motor 6 a with a speed reducer 6 b provided in the machine room 3. The stirrer 6 is decelerated by a worm and a worm wheel (not shown), converts the rotation direction to a right angle, and applies rotational force to the main shaft 7 a of the stirrer 6. introduce. The agitator 6 is supported and fixed to the support plate 5. The rotational speed of the main shaft 7a is 10 to 20 revolutions per minute, but may be other than this.
Further, the agitator 6 is provided with a mechanism capable of moving up and down.

攪拌翼７は、加圧濾過室２に配置され、複数個の回転羽根７ｃが固定されたアーム７ｂを正逆転自在に回転する。アーム７ｂの本数は、２本、３本、４本…と複数本から構成されており、その他の本数であってもよい。アーム７ｂの回転中心に垂直に伸びた主軸７ａは、機械室３の攪拌機６に接続されている。なお、上記撹拌機６の上昇・下降可能な機構に代えて、前記主軸７ａは上下方向へ移動自在であってもよい。
また、図３に示すように、回転羽根７ｃは、アーム７ｂの長手方向に対して、３０〜４５度に交差して接続されている。 The stirring blade 7 is disposed in the pressure filtration chamber 2 and rotates an arm 7b, to which a plurality of rotating blades 7c are fixed, in a freely rotating manner. The number of arms 7b is composed of two, three, four, etc., and may be other numbers. A main shaft 7 a extending perpendicularly to the rotation center of the arm 7 b is connected to the stirrer 6 in the machine room 3. Note that the main shaft 7a may be movable in the vertical direction instead of the mechanism capable of raising and lowering the agitator 6.
Further, as shown in FIG. 3, the rotary blade 7c is connected so as to intersect at 30 to 45 degrees with respect to the longitudinal direction of the arm 7b.

＜鏡板の構成＞
鏡板８は、一般の圧力容器の両端部に設けられる鏡板の形状に成形されている。鏡板８の中心には主軸７ａを通すと通し穴が設けられ、この通し穴と主軸７ａとの隙間は、図示しないメカニカルシールにて塞ぎ、気密性を高めている。また、メカニカルシールにて機械室３への液漏れを防止している。鏡板８の中は加圧室になっている。 <Configuration of end plate>
The end plate 8 is formed in the shape of an end plate provided at both ends of a general pressure vessel. A through-hole is provided in the center of the end plate 8 when the main shaft 7a is passed through, and a gap between the through-hole and the main shaft 7a is closed with a mechanical seal (not shown) to improve airtightness. Moreover, the liquid leak to the machine room 3 is prevented by the mechanical seal. Inside the end plate 8 is a pressurizing chamber.

＜ガイドロッドの構成＞
ガイド１２（以下、ガイドロッド１２という）は、図３に示すように、下部濾板１aと加圧濾過室２、中間濾板１ｂと加圧濾過室２、加圧濾過室２と加圧板１ｃの４隅に設けたガイドロッド１２の通し穴１ｄに挿通され、上下動をガイドするガイドロッドである。図４に示すように、ガイドロッド１２は、加圧ジャッキ２６により、下部濾板１aと加圧濾過室２、中間濾板１ｂと加圧濾過室２、との間に隙間を設けた開枠状態、隙間を無くした閉枠状態にするための上下動のガイドとなる。 <Configuration of guide rod>
As shown in FIG. 3, the guide 12 (hereinafter referred to as guide rod 12) includes a lower filter plate 1a and a pressure filtration chamber 2, an intermediate filter plate 1b and a pressure filtration chamber 2, and a pressure filtration chamber 2 and a pressure plate 1c. These guide rods are inserted into the through holes 1d of the guide rods 12 provided at the four corners to guide the vertical movement. As shown in FIG. 4, the guide rod 12 has an open frame in which a gap is provided between the lower filter plate 1 a and the pressure filtration chamber 2, and the intermediate filter plate 1 b and the pressure filtration chamber 2 by the pressure jack 26. This is a guide for up and down movement to make a closed frame state with no gaps.

＜加圧ジャッキの構成＞
加圧ジャッキ２６は、図４に示すように、下部濾板１aと加圧濾過室２、中間濾板１ｂと加圧濾過室２、との間に隙間を設けた開枠状態、隙間を無くした閉枠状態にするためのジャッキである。加圧ジャッキ２６は、減速機２６ｂ付の電動モータ２６ａからなり、図示しないウォームとウォームホイール２６ｄによってさらに減速するとともに、電動モータ２６ａの正転、逆転によりウォームホイール２６ｄを正逆回転させて、ジャッキねじ２６ｆを上下動自在に移動させる。 <Pressure jack configuration>
As shown in FIG. 4, the pressure jack 26 has an open frame state in which a gap is provided between the lower filter plate 1 a and the pressure filtration chamber 2, and the intermediate filter plate 1 b and the pressure filtration chamber 2. It is a jack for making a closed frame state. The pressure jack 26 includes an electric motor 26a with a speed reducer 26b. The pressure jack 26 is further decelerated by a worm and a worm wheel 26d (not shown), and the worm wheel 26d is rotated forward and backward by forward and reverse rotation of the electric motor 26a. The screw 26f is moved up and down.

＜濾材の種類＞
濾材１８は、図８に示すように、濾材ラック１７に配置され、ロール状に巻き取られた濾材ロール１７ａである。濾材１８は、濾過の際に用いる固液分離用の多孔材であればよく、ここでは濾紙１８（ペーパー）であるが、濾紙１８に限らず濾布１８であってもよい、濾布には羊毛、木綿、ガラス繊維、合成繊維などの各種繊維で織り上げた布も好適である。 <Types of filter media>
As shown in FIG. 8, the filter medium 18 is a filter medium roll 17 a that is disposed in the filter medium rack 17 and wound up in a roll shape. The filter medium 18 may be a porous material for solid-liquid separation used in the filtration, and here is the filter paper 18 (paper), but is not limited to the filter paper 18 and may be a filter cloth 18. A cloth woven with various fibers such as wool, cotton, glass fiber, and synthetic fiber is also suitable.

＜濾材の供給・排出方法＞
図８に示すように、濾材１８の供給方法は、従来と同様の濾材供給・排出システムの濾材ラック１７にストックされた濾材ロール１７ａ…から各濾板１に供給される。
これと同時に、濾過により残留したケーキとともに、使用済みの濾材１８は、濾材供給・排出システムの濾材エキストラクタ１９の排出ロール装置１９ａにより、機外に引き出されて排出される。 <Supplying and discharging filter media>
As shown in FIG. 8, the supply method of the filter medium 18 is supplied to each filter plate 1 from the filter medium rolls 17a stocked in the filter medium rack 17 of the filter medium supply / discharge system similar to the conventional filter medium.
At the same time, the spent filter medium 18 together with the cake remaining after filtration is drawn out and discharged by the discharge roll device 19a of the filter medium extractor 19 of the filter medium supply / discharge system.

＜濾過手段の濾過方法＞
濾過手段の濾過方法は、濾材１８の上面に窪みを設け、この窪みに金網等のスペーサを挿着し、その上に濾材１８を支持して、この濾材１８によって濾過した濾液を一箇所に集めて排液口１ｆから機外に排出する。濾過方法は、濾材１８が原液を濾過してメディアを除く濾過、具体的にはケーキを除く濾過をいい、加圧しても良いし、負圧にして吸い込んでもよい。ここでは、若干高めの約０．５〜１．０Ｍｐａが好適である。
図８に示すように、濾過方法にて濾過処理する原液の供給は、原液タンク１３からポンプ１３ａを介して供給され、原液供給ヘッダー１４に通される。原液は、この原液供給ヘッダー１４と各加圧濾過室２とは耐圧ホース１５，１５によって接続され、加圧濾過室２に供給される。
また、下部濾板１ａと中間濾板１ｂ内で濾材１８により濾過された濾液は、下部濾板１ａと中間濾板１ｂの排液口１ｆから図示しないホースを介して濾液タンクに排出される。 <Filtration method of filtration means>
The filtration method of the filtration means is to provide a recess on the upper surface of the filter medium 18, insert a spacer such as a wire mesh into the recess, support the filter medium 18 on the recess, and collect the filtrate filtered by the filter medium 18 in one place. Then, it is discharged out of the machine from the drain port 1f. The filtration method refers to filtration in which the filter medium 18 filters the stock solution to remove the media, specifically filtration to remove the cake, and it may be pressurized or sucked with a negative pressure. Here, a slightly higher value of about 0.5 to 1.0 MPa is suitable.
As shown in FIG. 8, the supply of the stock solution to be filtered by the filtration method is supplied from the stock solution tank 13 via the pump 13 a and passed through the stock solution supply header 14. The stock solution is supplied to the pressure filtration chamber 2 by connecting the stock solution supply header 14 and each pressure filtration chamber 2 by pressure hoses 15 and 15.
The filtrate filtered by the filter medium 18 in the lower filter plate 1a and the intermediate filter plate 1b is discharged from the drain port 1f of the lower filter plate 1a and the intermediate filter plate 1b to a filtrate tank through a hose (not shown).

本発明の多段の攪拌機付水平濾板式濾過機１１の動作について説明する。
運転サイクルは、１．濾過工程、２．脱液工程 ３．リスラリ洗浄工程、４．展圧・乾燥（通気）工程、５．濾材（ケーキ）排出工程となる。
１．濾過工程
図６に示すように、濾過工程が終了すると、加圧ジャッキ２６により、濾板１と加圧濾過室２との隙間ｓに開枠され、濾材１８が排出した後、閉枠状態（図７）になる。
図８に示すように、原液タンク１３からポンプ１３ａを介して原液供給ヘッダー１４と耐圧ホース１５，１５を介して原液が供給口８ａから供給され、濾過が開始する。
２．ケーキ脱液工程
濾材１８の初期においては、目詰まりがないため、どんどん原液の濾過が進み、次第に濾材１８に目詰まりが起こると、濾過圧力が上昇するので、上昇したら原液供給をストップし、空気を供給口８ａから入れて脱液を行う。この際ケーキ１８ａにクラックが入るような処理物の時は、撹拌機６を回し、クラックをつぶし、空気漏れを無くすことで、脱液を促進させる。
３．リスラリ洗浄工程
ケーキ脱液が終了した後、撹拌機６を回しながらシャワーノズル８ｂから洗浄水を入れる。洗浄水を入れ撹拌機６を回すことで、ケーキ１８ａと洗浄水が効率良く接触し、ケーキ１８ａ中の不純物が取り除かれる。
４．展圧・乾燥（通気）工程
ケーキ１８ａの攪拌・展圧により、通気乾燥での割れは潰されて割れの発生が抑えられる。
５．濾材（ケーキ）排出工程
所定の乾燥度に達すると、加圧ジャッキ２６により、下部濾板１ａ、中間濾板１ｂと、各加圧濾過室２との間に隙間が開枠し、乾燥したケーキ１８ａが残留した濾材１８が濾材エキストラクタ１９の排出ロール装置１９ａ（図８参照）により機外に引き出される。
この後は、１〜５の工程の繰り返しになり、連続して継続される。
このように、攪拌翼７による攪拌によりケーキ１８ａのクラックを潰して割れを防ぐことができること、リスラリ洗浄による十分なケーキ１８ａ中の不純物除去が行えるので、レアメタル（希少金属）等の濾過洗浄には好適である。 The operation of the multistage horizontal filter plate filter 11 with a stirrer of the present invention will be described.
The operation cycle is as follows: 1. Filtration step 2. Liquid removal step 3. Slurry washing process, 4. Pressure / drying (venting) process; It becomes a filter medium (cake) discharge process.
1. Filtration Step As shown in FIG. 6, when the filtration step is completed, the pressure jack 26 opens the frame in the gap s between the filter plate 1 and the pressure filtration chamber 2, and after the filter medium 18 is discharged, the frame is closed ( Fig. 7).
As shown in FIG. 8, the stock solution is supplied from the stock solution tank 13 via the pump 13a via the stock solution supply header 14 and the pressure-resistant hoses 15 and 15, and then the filtration starts.
2. Cake drainage process Since there is no clogging in the initial stage of the filter medium 18, the filtration of the stock solution progresses gradually. When the filter medium 18 is gradually clogged, the filtration pressure rises. From the supply port 8a to remove the liquid. At this time, in the case of a processed product that cracks in the cake 18a , the agitator 6 is turned to crush the crack and eliminate air leakage to promote liquid removal.
3. Reslurry washing step After the cake drainage is completed, washing water is poured from the shower nozzle 8b while the agitator 6 is rotated. By putting the washing water and turning the stirrer 6 , the cake 18a and the washing water come into efficient contact, and impurities in the cake 18a are removed.
4). Step of spreading and drying (aeration) By the stirring and spreading pressure of the cake 18a , cracks in the aeration drying are crushed and the generation of cracks is suppressed.
5. Filter medium (cake) discharging step When a predetermined dryness is reached, the pressure jack 26 opens a gap between the lower filter plate 1a, the intermediate filter plate 1b, and each pressure filtration chamber 2, and the cake is dried. The filter medium 18 in which 18a remains is pulled out of the apparatus by a discharge roll device 19a (see FIG. 8) of the filter medium extractor 19.
Thereafter, the steps 1 to 5 are repeated and continued continuously.
In this way, the cracking of the cake 18a can be crushed by stirring with the stirring blade 7 to prevent cracking, and the impurities in the cake 18a can be sufficiently removed by the cleaning of the slurry. Therefore, for filtration cleaning of rare metals (rare metals) and the like Is preferred.

本発明はその技術思想の範囲内で種々の改造、変更が可能である。
例えば、本発明の多段の攪拌機付水平濾板式濾過機１１は、２，３段式にして説明したが、４，５，６…段、それ以上の段重ねにしてもよい。
ここでは多段で説明したが、最少の段数は単段の一段であってもよく、下部濾過室１ａと撹拌機６を設けた加圧濾過室２と、加圧板１ｃの最小の構成であっても構わない。
なお、レアメタルとは、金、銀、白金(プラチナ)、パラジウム、ロジウム、ニッケル、コバルト、チタン、タングステン、モリブデン、タンタル、インコネル、ビスマス・セレニウム等をいうが、その他の重金属、希少金属であっても構わない。 The present invention can be modified and changed in various ways within the scope of its technical idea.
For example, although the multistage horizontal filter plate filter 11 with a stirrer of the present invention has been described as having two or three stages, it may be composed of 4, 5, 6...
Although the description here is multistage, the minimum number of stages may be a single stage, which is the minimum configuration of the pressure filtration chamber 2 provided with the lower filtration chamber 1a and the stirrer 6, and the pressure plate 1c. It doesn't matter.
The rare metal refers to gold, silver, platinum (platinum), palladium, rhodium, nickel, cobalt, titanium, tungsten, molybdenum, tantalum, inconel, bismuth / selenium, etc., but other heavy metals and rare metals It doesn't matter.

１ 濾板
１ａ 下部濾板
１ｂ 中間濾板
１ｃ 加圧板
１ｄ ガイドロッドの通し穴
１ｅ 開口用連結ボルト通し穴
１ｆ 排液口
２ 加圧濾過室
３ 機械室
５ 支持板（仕切り板）
６ 攪拌機
６ａ 電動モータ
６ｂ 減速機
７ 攪拌翼
７ａ 主軸
７ｂ アーム
７ｃ 回転羽根
８ 鏡板（圧力隔壁）
８ａ 供給口
８ｂ シャワーノズル
１０ 攪拌機付水平濾板式濾過機（一段）
１１ 攪拌機付水平濾板式濾過機（多段）
１２ ガイド（ガイドロッド）
１３ 原液タンク
１３ａ ポンプ
１４ 原液供給ヘッダー
１５ 耐圧ホース
１６ 加圧ジャッキ
１７ 濾材ラック
１７ａ 濾材ロール
１８ 濾材（濾紙、濾布）
１８ａ ケーキ
１９ 濾材エキストラクタ
２０ 多段水平濾板式濾過機（従来）
２１ ベース
２２ ポスト
２３ ビーム（梁）
２６ 加圧ジャッキ
２６ａ 電動モータ
２６ｂ 減速機
２６ｃ ウォーム
２６ｄ ウォームホイール
２６ｅ ブラケット
２６ｆ ジャッキねじ DESCRIPTION OF SYMBOLS 1 Filter plate 1a Lower filter plate 1b Intermediate filter plate 1c Pressure plate 1d Guide rod through hole 1e Opening connection bolt through hole 1f Drain port 2 Pressure filtration chamber 3 Machine chamber 5 Support plate (partition plate)
6 Stirrer 6a Electric motor 6b Reducer 7 Stirrer blade 7a Main shaft 7b Arm 7c Rotating blade 8 End plate (pressure partition)
8a Supply port 8b Shower nozzle 10 Horizontal filter plate filter with stirrer (one stage)
11 Horizontal filter plate filter with agitator (multistage)
12 Guide (guide rod)
13 Stock solution tank 13a Pump 14 Stock solution supply header 15 Pressure hose 16 Pressure jack 17 Filter media rack 17a Filter media roll 18 Filter media (filter paper, filter cloth)
18a cake 19 filter medium extractor 20 multi-stage horizontal filter plate type filter (conventional)
21 Base 22 Post 23 Beam
26 Pressurized jack 26a Electric motor 26b Reducer 26c Worm 26d Worm wheel 26e Bracket 26f Jack screw

Claims (1)

下部濾板（１ａ）、中間濾板（１ｂ）および加圧板（１ｃ）とで構成する濾板（１）と、
前記下部濾板（１ａ）の上部、前記中間濾板（１ｂ）の上部に形成された加圧濾過室（２）と、
前記加圧濾過室（２）と前記中間濾板（１ｂ）および前記加圧板（１ｃ）を上下方向へ移動自在に支持するガイド（１２）と、
前記ガイド（１２）に支持された前記加圧濾過室（２）の開枠・閉枠を行う加圧ジャッキ（２６）と、
を備えた多段の攪拌機付水平濾板式濾過機（１１）であって、
前記加圧濾過室（２）に、鏡板（８）が設けられ、
前記加圧濾過室（２）に、前記原液を濾過する濾材（１８）上のケーキを攪拌・展圧する攪拌翼（７）が設けられるとともに、
前記加圧濾過室（２）の前記鏡板（８）の上部に隣接して支持板（５）と機械室（３）が設けられ、
前記機械室（３）内には前記攪拌翼（７）を旋回・昇降する攪拌機（６）が設けられ、
前記下部濾板（１a）の上面には、前記鏡板（８）が設けられた前記加圧濾過室（２）と、前記攪拌機（６）が設けられた前記機械室（３）と、前記中間濾板（１ｂ）とが、多段に載置されることを特徴とする多段の攪拌機付水平濾板式濾過機（１１）。 A filter plate (1) comprising a lower filter plate (1a) , an intermediate filter plate ( 1b) and a pressure plate (1c);
A pressure filtration chamber (2) formed in the upper part of the lower filter plate (1a), the upper part of the intermediate filter plate (1b);
Wherein the pressure filter chamber (2) and the intermediate filter plate (1b) and said pressure plate (1c) and movably supported guide the vertical direction (12),
A pressure jack (26) for opening and closing the pressure filtration chamber (2) supported by the guide (12);
A multi-stage horizontal filter plate filter with a stirrer (11),
End plate (8) is provided in the pressure filtration chamber (2),
The pressure filtration chamber (2) is provided with a stirring blade (7) for stirring and spreading the cake on the filter medium (18) for filtering the stock solution ,
A support plate (5) and a machine room (3) are provided adjacent to the upper part of the end plate (8) of the pressure filtration chamber (2) ,
In the machine room (3), a stirrer (6) for turning and raising and lowering the stirring blade (7) is provided ,
On the upper surface of the lower filter plate (1a), the pressure filtration chamber (2) provided with the end plate (8), the machine chamber (3) provided with the stirrer (6), and the intermediate A filter plate (1b) and a multi-stage horizontal filter plate filter with a stirrer ( 11 ), wherein the filter plate (1b) is placed in multiple stages.
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