JP2696666B2 - Pressure filtration device - Google Patents
Pressure filtration deviceInfo
- Publication number
- JP2696666B2 JP2696666B2 JP6022083A JP2208394A JP2696666B2 JP 2696666 B2 JP2696666 B2 JP 2696666B2 JP 6022083 A JP6022083 A JP 6022083A JP 2208394 A JP2208394 A JP 2208394A JP 2696666 B2 JP2696666 B2 JP 2696666B2
- Authority
- JP
- Japan
- Prior art keywords
- filter
- concentrate
- plate
- filter cloth
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Filtration Of Liquid (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、濾過用原液を濾過し
て得られた濃縮物を集め、これを所定量ずつ圧搾して固
化するようにした加圧濾過装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure filtration device for collecting a concentrate obtained by filtering a stock solution for filtration and compressing the concentrate by a predetermined amount to solidify.
【０００２】[0002]
【従来の技術】回転濾過装置で原液を予備圧縮し、得ら
れた濃縮物を圧搾固化する加圧濾過装置として、特公昭
４４−１８７９５号公報および特公昭５０−４９０９号
公報等に記載されたものが知られている。この公知の装
置は、回転濾過装置で濾過して得られた濃縮物を一次的
に貯留するための濃縮物溜め器を回転濾過装置の下側に
第１開閉弁を介して設け、この濃縮物溜め器に所定量の
濃縮物が溜まると、下の第２開閉弁を開いて濃縮物をコ
ンベヤで間欠的に送られるバケットに投入し、このバケ
ットを上記コンベヤの回転に伴って圧搾部に移送し、こ
の圧搾部において上から押し板を下降させ、バケット内
に圧入してバケット内の濃縮物を押圧し、さらに押し板
に取付けられている空気送入パイプから圧搾空気を送っ
て濃縮物中の残液を上記バケットの側面の残液排出口か
ら排出し、これによって上記の濃縮物を固化するもので
ある。2. Description of the Related Art Japanese Patent Publication No. 44-18795 and Japanese Patent Publication No. 50-4909 have disclosed pressure filtration apparatuses for pre-compressing a stock solution by a rotary filtration apparatus and compressing and solidifying the obtained concentrate. Things are known. In this known device, a concentrate reservoir for temporarily storing a concentrate obtained by filtration with a rotary filter is provided below a rotary filter through a first on-off valve, and the concentrate is provided. When a predetermined amount of concentrate is accumulated in the reservoir, the lower second opening / closing valve is opened, and the concentrate is charged into a bucket intermittently fed by a conveyor, and the bucket is transferred to a squeezing unit with the rotation of the conveyor. Then, the pressing plate is lowered from above in the pressing portion, pressed into the bucket to press the concentrate in the bucket, and further, compressed air is sent from an air inlet pipe attached to the pressing plate to remove the concentrated material. Is discharged from the residual liquid discharge port on the side surface of the bucket, thereby solidifying the concentrate.
【０００３】[0003]
【発明が解決しようとする課題】上記の従来装置は、予
備濾過で得られた濃縮物を圧搾する際、バケットに濃縮
物を投入し、この濃縮物を押し板で圧搾し、更に押し板
下面に圧搾空気を送って濃縮物中の残液をバケット側面
の残液排出口から排出するものであるから、残液の排出
抵抗が大きくて脱水能率が低く、特に濃縮物の粘度が高
い場合には、圧搾空気の吹込み効果が無かった。そし
て、残液の排出速度を上げるため、押し板および圧搾空
気の圧力を高くすると、バケットが破損し、これを防ぐ
ためには、多数のバケットをそれぞれ頑丈にする必要が
あった。また、四周に側壁を備えたバケット内で濃縮物
を圧搾、固化することにより、バケット内面に固化濃縮
物が固く付着するので、上記バケット内の固化濃縮物が
バケットから離れ難く、その排出が困難であった。In the conventional apparatus described above, when the concentrate obtained by the preliminary filtration is squeezed, the concentrate is put into a bucket, the concentrate is squeezed with a push plate, and further, the lower surface of the push plate is pressed. Since the residual liquid in the concentrate is discharged from the residual liquid discharge port on the side of the bucket by sending compressed air to the bucket, the discharge resistance of the residual liquid is large and the dewatering efficiency is low, especially when the viscosity of the concentrate is high. Had no compressed air blowing effect. When the pressure of the pressing plate and the compressed air is increased in order to increase the discharge speed of the residual liquid, the buckets are damaged, and in order to prevent this, a large number of buckets have to be made strong. Also, by pressing and solidifying the concentrate in a bucket having side walls on four sides, the solidified concentrate adheres firmly to the inner surface of the bucket, so that the solidified concentrate in the bucket hardly separates from the bucket and is difficult to discharge. Met.
【０００４】この発明は、上記の特公昭４４−１８７９
５号公報および特公昭５０−４９０９号公報に記載され
た回転濾過装置等で原液を予備濾過して得られた濃縮物
を、バケットを使わずに高圧を加えて圧搾、固化するこ
とを可能にし、これによって濃縮物からの残液排出が円
滑に行われて能率が向上し、かつ固化濃縮物を容易に排
出できるようにしたものである。The present invention relates to the above-mentioned Japanese Patent Publication No. 44-1879.
No. 5 and Japanese Patent Publication No. 50-4909 describe that a concentrate obtained by pre-filtration of a stock solution by a rotary filtration device or the like can be squeezed and solidified by applying high pressure without using a bucket. Thereby, the residual liquid is smoothly discharged from the concentrate, the efficiency is improved, and the solidified concentrate can be easily discharged.
【０００５】[0005]
【課題を解決するための手段】すなわち、この発明の加
圧濾過装置は、濾過用原液を予備濾過して得られた濃縮
物を集め、これを所定量ずつ圧搾して固化するようにし
た加圧濾過装置において、水平に移動することができる
濾布の下側に額縁状の枠体とその内側に固定された多孔
性の濾布受け板とからなる濾板を設置し、この濾板の下
側に濾液受け皿を設け、上記濾板の上方に流体シリンダ
に接続されて昇降し、下面にダイアフラムを備えた加圧
箱を上記濾板と対向状に設け、この加圧箱の下面縁部に
濾枠を固定して上記ダイアフラムの下側に濾過室を形成
し、上記加圧箱の上面に圧搾空気供給のためのエアパイ
プを、また上記濾枠に上記濃縮物供給のための濃縮物供
給管の一端をそれぞれ接続し、この濃縮物供給管の他端
に上記濃縮物貯留器の底部を開閉弁を介して接続し、こ
の濃縮物貯留器の上部および上記濃縮物供給管の一端側
にそれぞれ圧搾空気供給のためのエアパイプを接続した
ことを特徴とするThat is, the pressurized filtration device of the present invention provides a concentrated solution obtained by preliminarily filtering a stock solution for filtration.
Collect the material and squeeze it by a predetermined amount so that it solidifies.
In a pressure filtration device, a filter plate consisting of a frame-shaped frame and a porous filter cloth receiving plate fixed inside the filter frame is installed below the filter cloth that can move horizontally. A filtrate receiving tray is provided below the plate, connected to a fluid cylinder above the filter plate and moved up and down, and a pressure box provided with a diaphragm on the lower surface is provided opposite to the filter plate, and a lower surface of the pressure box is provided. securing the濾枠the edges to form a filter chamber on the lower side of the diaphragm, concentrated for the concentrate supply air pipe for compressed air supply to the upper surface of the pressing圧箱, also in the濾枠One end of each supply pipe is connected to the other end of this concentrate supply pipe.
Connected to the bottom of the concentrate reservoir via an on-off valve.
Of the concentrate reservoir and one end of the concentrate supply pipe
Each connected to an air pipe for compressed air supply
【０００６】上記の装置において、濾布を無端のベルト
コンベヤ状に形成し、その上側搬送部を濾板上に沿って
走行させてもよく、また濾板をまたぐように張設し、濾
板の片側で巻取り、反対側で巻戻すようにしてもよい。
また、濾布受け板は、耐圧性の多孔支持板とその上に重
ねられた金網とで形成し、多孔支持板を囲む枠体の上面
に内側よりも外側が高くなるように傾斜を付して濾板を
皿形に形成することが好ましい。また、濾布受け板およ
び濾枠の濾布を挟んで接触する対向部にはパッキングを
固定することが好ましく、このパッキングは、あらかじ
め幅の異なるものを数種類用意し、目的に応じて適宜交
換可能に形成することができる。また、上記の濃縮物貯
留器は、予備濾過装置のケーキ排出口下側に開閉弁を介
して接続することができる。In the above apparatus, the filter cloth may be formed into an endless belt conveyor, and the upper conveying portion may be moved along the filter plate. Alternatively, the filter cloth may be stretched over the filter plate. May be wound on one side and rewinded on the other side.
Further, the filter cloth receiving plate is formed of a pressure-resistant porous support plate and a wire mesh superposed thereon, and the upper surface of the frame surrounding the porous support plate is inclined so that the outside is higher than the inside. Preferably, the filter plate is formed in a dish shape. In addition, it is preferable to fix the packing to the opposing portions of the filter cloth receiving plate and the filter frame which are in contact with each other with the filter cloth interposed therebetween, and several kinds of packings having different widths are prepared in advance, and can be appropriately replaced according to the purpose. Can be formed. In addition, the above-mentioned concentrate storage
The retainer is provided with an on-off valve below the cake discharge port of the preliminary filtration device.
It is possible to connect to.
【０００７】[0007]
【作用】流体シリンダの作動により加圧箱を下降させて
該加圧箱の下の濾枠下面を下方の濾板の枠体上面に濾布
を介して密着させ、次いで濃縮物貯留器の底部の開閉弁
を開き、かつ濃縮物貯留器の上部にエアパイプを介して
圧搾空気を送ることにより、濃縮物貯留器内に貯留され
ている濾過用原液の濃縮物が濾枠内側の濾過室に迅速に
供給され、濃縮物中の残液が自重によって濾布および多
孔性の濾布受け板を順に通過して下方の濾液受け皿に流
下する。所定量の濃縮物が供給された後、その供給を停
止して加圧箱に圧搾空気を送ると、ダイアフラムが下方
の濃縮物を圧縮し、濃縮物の残液が絞り出されて上記の
濾布および濾布受け板を順に通過して下方の濾液受け皿
に流下する。この圧搾時に、濃縮物供給管の一端側に接
続されたエアパイプを介して上記の濾過室に圧搾空気を
送ることにより、上記濃縮物を効率的に脱水することが
できる。上記の圧搾で濃縮物が固化された後、圧搾空気
の供給を停めて加圧箱を上昇させると、固化濃縮物が自
重で濾布上に残される。そして、濾布を所定量だけ一方
向に移動させて固化濃縮物を濾板上から運び出した後、
この固化濃縮物を濾布から剥離する。The pressurizing box is lowered by the operation of the fluid cylinder, and the lower surface of the filter frame below the pressurizing box is brought into close contact with the upper surface of the frame of the lower filter plate via a filter cloth, and then the bottom of the concentrate reservoir. On-off valve
Open and through the air pipe at the top of the concentrate reservoir
By sending compressed air, it is stored in the concentrate reservoir
The concentrate of the undiluted solution for filtration quickly enters the filtration chamber inside the filter frame.
Subjected is fed, it flows down the filter cloth receiving plate filter cloth and porous liquid remaining in the concentrate is due to its own weight through sequentially below the filtrate pan. After a predetermined amount of concentrate has been supplied, the supply is stopped and compressed air is sent to the pressurizing box.The diaphragm compresses the concentrate below, and the residual liquid of the concentrate is squeezed out and the above-mentioned filtration is performed. After passing through the cloth and the filter cloth receiving plate in order, it flows down to the lower filtrate receiving tray. During this squeezing, one end of the concentrate supply pipe is
Compressed air is supplied to the filtration chamber through the connected air pipe.
By sending, the concentrate can be efficiently dehydrated
it can. After the concentrate is solidified by the above-described pressing, when the supply of the compressed air is stopped and the pressurizing box is raised, the solidified concentrate is left on the filter cloth by its own weight. Then, after moving the filter cloth by a predetermined amount in one direction and transporting the solidified concentrate from the filter plate,
The solidified concentrate is peeled from the filter cloth.
【０００８】なお、上記濾板を構成する枠体の上面に傾
斜を付して濾板を皿形に形成すると、濾過室に充填した
濃縮物を圧搾しているときに固形分のはみ出しを防ぐこ
とができ、濾布受け板を耐圧性の多孔支持板上に金網を
重ねて形成することにより、濾布受け板の掃除の際、重
い多孔支持板を外すことなく軽い金網のみを外して掃除
することが可能になり、濾布受け板の目詰まりを防ぐこ
とができる。また、濾布受け板および濾枠の接触する対
向部にパッキングを固定することにより、上記圧搾時に
おける固形分の漏洩を確実に防ぐことができ、また上記
パッキングの幅を大きくすることにより、上記の漏洩を
一層確実に防ぐことができる。If the filter plate is formed into a dish shape by inclining the upper surface of the frame constituting the filter plate, the solid content is prevented from protruding when the concentrate filled in the filtration chamber is squeezed. The filter cloth receiving plate is formed by laminating a wire mesh on a pressure-resistant porous support plate, so that when cleaning the filter cloth receiving plate, only the light wire mesh is removed without removing the heavy porous support plate for cleaning. And the clogging of the filter cloth receiving plate can be prevented. In addition, by fixing the packing to the opposing portion where the filter cloth receiving plate and the filter frame are in contact with each other, it is possible to reliably prevent leakage of solids during the squeezing, and by increasing the width of the packing, Leakage can be more reliably prevented.
【０００９】[0009]
【００１０】[0010]
【実施例】図１において、１０は予備濾過用の回転濾過
装置であり、特公昭４４−１８７９５号公報に記載され
たものと同様に外筒１１とその中心を通る多孔管軸１２
に固定されて回転する濾過円筒１３とからなり、濾過円
筒１３の外面に濾布１４が取付けられ、外筒１１に開口
する原液供給口１１ａから原液が供給されると、濾布１
４を通過した濾液が中心の多孔管軸１２を通って外筒１
１の端板から外に取出され、濾布１４の外面に付着した
ケークは、濾過円筒１３の時計方向回転に伴って下方に
運ばれ、外筒１１の内面に固定されているスクレーパ１
５で掻落され、外筒１１の下端に開口するケーキ排出口
１１ｂから排出される。In FIG. 1, reference numeral 10 denotes a rotary filtration device for preliminary filtration, similar to that described in Japanese Patent Publication No. 44-18795, and an outer cylinder 11 and a perforated pipe shaft 12 passing through the center thereof.
The filter cloth 14 is attached to the outer surface of the filter cylinder 13, and when the stock solution is supplied from a stock solution supply port 11 a opened in the outer cylinder 11, the filter cloth 1
4 passes through the central porous tube shaft 12 and passes through the outer cylinder 1
The cake removed from the end plate 1 and adhered to the outer surface of the filter cloth 14 is carried downward with the clockwise rotation of the filter cylinder 13 and fixed to the inner surface of the outer cylinder 11.
5, and is discharged from the cake discharge port 11b opened at the lower end of the outer cylinder 11.
【００１１】上記のケーキ排出口１１ｂには、ホッパ１
６および第１開閉弁１７を介して上記のケーキを含む濃
縮物を貯留するための濃縮物貯留器１８が接続され、こ
の濃縮物貯留器１８の底部に第２開閉弁１９を介して可
撓性の濃縮物供給管２０が接続され、下方の加圧濾過装
置３０に導かれている。なお、濃縮物貯留器１８の上に
は、上記の回転濾過装置１０に代えて他の濾過装置を接
続することができる。例えば、特公昭５０−４９０９号
公報に記載のように、外筒１１の内面に金網、濾布およ
び押さえ金網を順に重ねて取付けて原液を内側から半径
方向外向きに流して濾過し、押さえ金網の内面に付着す
るケークを回転翼で剥離し、上記の金網や外筒１１の底
部に開口するケーク排出口から排出するものでもよい。The above-mentioned cake discharge port 11b has a hopper 1
The concentrate reservoir 18 for storing the above-mentioned cake-containing concentrate is connected via the first on-off valve 6 and the first on-off valve 17. A concentrated concentrate supply pipe 20 is connected and led to a pressure filtration device 30 below. It should be noted that another filtration device can be connected on the concentrate reservoir 18 instead of the rotary filtration device 10 described above. For example, as described in Japanese Patent Publication No. 50-4909, a wire mesh, a filter cloth and a holding wire mesh are sequentially attached to the inner surface of the outer cylinder 11, and the stock solution is filtered by flowing the undiluted solution radially outward from the inside. The cake adhering to the inner surface of the shell may be peeled off by a rotating blade, and may be discharged from the above-described wire mesh or the cake discharge opening opened at the bottom of the outer cylinder 11.
【００１２】加圧濾過装置３０は、無端のベルトコンベ
ヤ状に接続した濾布３１と、該濾布３１の上側搬送面を
下から支持する濾板３４と、この濾板の下側に設けた濾
液受け皿３９と、上記濾板の上方の油圧シリンダ４０に
接続されて昇降する加圧箱４２と、この加圧箱４２の下
面縁部に固定された濾枠４４とで構成されている。そし
て、上記ベルト状の濾布３１は、左右のプーリ３２、３
３間に水平に張設され、モータ駆動により右側の駆動プ
ーリ３３を介して時計方向に間欠的に回転するものであ
る。The pressure filtration device 30 includes a filter cloth 31 connected in the form of an endless belt conveyor, a filter plate 34 for supporting the upper conveying surface of the filter cloth 31 from below, and a filter cloth provided below the filter plate. It comprises a filtrate receiving tray 39, a pressurizing box 42 connected to a hydraulic cylinder 40 above the filter plate and moving up and down, and a filter frame 44 fixed to the lower edge of the pressurizing box 42. The belt-shaped filter cloth 31 is connected to the left and right pulleys 32, 3
The motor is driven horizontally and intermittently rotates clockwise via a driving pulley 33 on the right side.
【００１３】濾板３４は、方形の額縁状の枠体３５とそ
の内側に嵌め込まれた濾布受け板３６とからなり、この
実施例では、図２に示すように、枠体３５の内周に沿っ
て上下２段の段部が形成され、下側段部に耐圧性の多孔
支持板３６ａが嵌め込まれ、上側段部に目の細かい金網
３６ｂおよび該金網３６ｂを囲む方形の下パッキング３
７が多孔支持板３６ａの上面に重なるように着脱自在に
嵌め込まれ、上記の多孔支持板３６ａおよび金網３６ｂ
によって濾布受け板３６を構成している。そして、枠体
３５の上面３５ａに内側から外側に向かって高くなるよ
うに傾斜が付されて濾板３４の全体が皿形を呈し、濾布
受け板３６が皿形の底部を形成する。The filter plate 34 is composed of a rectangular frame 35 and a filter cloth receiving plate 36 fitted inside the frame 35. In this embodiment, as shown in FIG. Are formed along the upper and lower sides, a pressure-resistant porous support plate 36a is fitted into the lower step, and a finer wire mesh 36b and a rectangular lower packing 3 surrounding the wire mesh 36b are formed in the upper step.
7 is removably fitted so as to overlap the upper surface of the porous support plate 36a, and the above-described porous support plate 36a and the wire mesh 36b.
This constitutes the filter cloth receiving plate 36. The upper surface 35a of the frame 35 is inclined so as to be higher from inside to outside, so that the entire filter plate 34 has a dish shape, and the filter cloth receiving plate 36 forms a dish-shaped bottom.
【００１４】上記濾板３４の枠体３５は、床上に設置さ
れた濾板受け台３８の上に固定されており、その上端内
側に上記枠体３５の内側開口部を覆うように濾液受け皿
３９が取付けられ、この濾液受け皿３９の側壁３９ａに
濾液排出口３９ｂが設けられる。The frame 35 of the filter plate 34 is fixed on a filter plate receiving base 38 installed on the floor, and a filtrate receiving tray 39 is provided inside the upper end thereof so as to cover the inner opening of the frame 35. And a filtrate outlet 39b is provided on a side wall 39a of the filtrate receiving tray 39.
【００１５】上記濾板３４の上方に（図１参照）油圧シ
リンダ４０がピストンロッド４１を下向きにして設置さ
れ、このピストンロッド４１の下端に方形の皿形に形成
された加圧箱４２が開口部を下にして固定され、この加
圧箱４２の下面開口部に（図２参照）該開口部を覆うダ
イアフラム４３、その外周を押さえる額縁状の濾枠４４
および上パッキング４５が順に固定され、ダイアフラム
４３の上に加圧室が、下に濾過室がそれぞれ形成され
る。そして、上記加圧箱４２の天部に圧搾空気の導入孔
４２ａが、また濾枠４４に濃縮物の供給口４４ａがそれ
ぞれ設けられる。なお、上記の上パッキング４５は、前
記濾板３４上の下パッキング３７に重なるように等しい
大きさを備えており、その全幅が下方の濾布３１の幅よ
りも小さく形成されている（図３参照）。Above the filter plate 34 (see FIG. 1), a hydraulic cylinder 40 is installed with its piston rod 41 facing downward, and at the lower end of the piston rod 41, a rectangular plate-shaped pressurizing box 42 is opened. The diaphragm 43 is fixed to the pressure box 42 on its lower surface, and covers the opening at the lower surface of the pressurizing box 42 (see FIG. 2), and a frame-shaped filter frame 44 for pressing the outer periphery thereof.
The upper packing 45 is fixed in order, and a pressure chamber is formed above the diaphragm 43, and a filtration chamber is formed below the diaphragm 43. A pressurized box 42 is provided with a compressed air introduction hole 42a at the top and a filter frame 44 provided with a concentrate supply port 44a. The upper packing 45 has an equal size so as to overlap with the lower packing 37 on the filter plate 34, and the entire width thereof is formed smaller than the width of the lower filter cloth 31 (FIG. 3). reference).
【００１６】上記の濾枠４４に設けた濃縮物の供給口４
４ａに前記可撓性の濃縮物供給管２０の一端が接続され
る。この濃縮物供給管２０の他端は、図１に示すように
濃縮物貯留器１８の底部の第２開閉弁１９に接続されて
いるが、濃縮物貯留器１８の上部とエアコンプレッサ５
０の吐出口とが第１エアパイプ５１で接続され、この第
１エアパイプ５１から分岐する第２エアパイプ５２の先
端が上記加圧箱４２の天部の導入孔４２ａに接続され、
第２エアパイプ５２から分岐する第３エアパイプ５３の
先端が上記濃縮物供給管２０の濾枠４４側先端付近に接
続される。そして、第１エアパイプ５１、第２エアパイ
プ５２および第３エアパイプ５３にそれぞれ第１電磁弁
５４、第２電磁弁５５および第３電磁弁５６が介設され
る。なお、濃縮物供給管２０の下部、第３エアパイプ５
３との接続部付近に開閉弁を設けることができる。The concentrate supply port 4 provided in the filter frame 44
One end of the flexible concentrate supply pipe 20 is connected to 4a. The other end of the concentrate supply pipe 20 is connected to a second on-off valve 19 at the bottom of the concentrate reservoir 18 as shown in FIG.
0 is connected to the first air pipe 51, and the tip of a second air pipe 52 branched from the first air pipe 51 is connected to the top hole 42a of the pressurizing box 42,
The tip of the third air pipe 53 branched from the second air pipe 52 is connected to the vicinity of the tip of the concentrate supply pipe 20 on the filter frame 44 side. The first air pipe 51, the second air pipe 52, and the third air pipe 53 are provided with a first solenoid valve 54, a second solenoid valve 55, and a third solenoid valve 56, respectively. The lower part of the concentrate supply pipe 20 and the third air pipe 5
An on-off valve can be provided in the vicinity of the connection with the third valve.
【００１７】上記の構造において、回転濾過装置１０の
下方の第１開閉弁１７および第２開閉弁１９を閉じた状
態で回転濾過装置における予備濾過を行うと、濾過円筒
１３の表面の濾布１４に付着したケークがスクレーパ１
５で掻落されてホッパ１６に溜められる。ホッパ１６に
所定量のケークが溜まったとき、第１開閉弁１７を開い
て上記のケークを含む濃縮物を濃縮物貯留器１８に流下
させる。次いで、下方の濾板３４上に濾枠４４を下降さ
せ、濾板３４と濾枠４４の間に濾布３１を挟んだ後、濃
縮物貯留器１８の上の第１開閉弁１７を閉じる一方、下
の第２開閉弁１９を開き、更にエアパイプ回路の第１電
磁弁５４を開くと（ただし、第２電磁弁５５および第３
電磁弁５６は閉じられている）、第１エアパイプ５１を
通じて圧搾空気が濃縮物貯留器１８の上部に送られて濃
縮物貯留器１８内の濃縮物を加圧し、そのためこの濃縮
物が第２開閉弁１９および濃縮物供給管２０を通じて濾
枠４４内に送られる。In the above-described structure, when preliminary filtration is performed in the rotary filtration device with the first on-off valve 17 and the second on-off valve 19 below the rotary filtration device 10 closed, the filter cloth 14 on the surface of the filtration cylinder 13 is removed. Cake attached to the scraper 1
At 5, it is scraped off and stored in the hopper 16. When a predetermined amount of cake has accumulated in the hopper 16, the first on-off valve 17 is opened and the concentrate containing the cake flows down to the concentrate reservoir 18. Next, the filter frame 44 is lowered on the lower filter plate 34, and after the filter cloth 31 is sandwiched between the filter plate 34 and the filter frame 44, the first on-off valve 17 on the concentrate reservoir 18 is closed. When the lower second on-off valve 19 is opened and the first solenoid valve 54 of the air pipe circuit is further opened (however, the second solenoid valve 55 and the third
The solenoid valve 56 is closed), and compressed air is sent to the upper part of the concentrate reservoir 18 through the first air pipe 51 to pressurize the concentrate in the concentrate reservoir 18 so that this concentrate is opened and closed by the second opening and closing. It is sent into the filter frame 44 through the valve 19 and the concentrate supply pipe 20.
【００１８】次いで、濃縮物供給管２０の上端の第２開
閉弁１９を閉じ、エアパイプ回路の第２電磁弁５５を開
くと、第２エアパイプ５２から加圧箱４２内に送られた
圧搾空気によってダイアフラム４３が膨らみ、濾枠４４
内の濃縮物を下向きに加圧するので、濃縮物中の残液が
絞り出されて下側の濾布製ベルトコンベヤ３１、金網３
６ｂおよび多孔支持板３６ａを通って濾液受け皿３９に
流下する。次いで、第２電磁弁５５を閉じ、第３電磁弁
５６を開いて第３エアパイプ５３から濾枠４４内に圧搾
空気を送ると、濾枠４４内の濃縮物が脱水される。そし
て、この脱水後に油圧シリンダ４０の油圧を緩めると、
上記エアパイプ５３から送られる圧搾空気の圧力によ
り、濾枠４４内の固化された濃縮物が濾枠４４から容易
に押出される。Next, when the second on-off valve 19 at the upper end of the concentrate supply pipe 20 is closed and the second solenoid valve 55 of the air pipe circuit is opened, the compressed air sent from the second air pipe 52 into the pressurizing box 42 causes The diaphragm 43 expands, and the filter frame 44
Since the concentrate in the concentrate is pressurized downward, the residual liquid in the concentrate is squeezed out and the lower belt conveyor 31 made of filter cloth and the wire mesh 3
6b and the filtrate flows down to the filtrate receiving tray 39 through the porous support plate 36a. Next, when the second solenoid valve 55 is closed and the third solenoid valve 56 is opened to send compressed air from the third air pipe 53 into the filter frame 44, the concentrate in the filter frame 44 is dehydrated. Then, when the hydraulic pressure of the hydraulic cylinder 40 is released after the dehydration,
By the pressure of the compressed air sent from the air pipe 53, the solidified concentrate in the filter frame 44 is easily extruded from the filter frame 44.
【００１９】続いて、電磁弁５４、５５、５６を閉じ、
油圧シリンダ４０を作動させてピストンロッド４１を引
っ込め、加圧箱４２および濾枠４４を上昇させると、固
化された濃縮物が濾布３１上に残される。そして、ベル
ト状の濾布３１を駆動し、時計方向に回転させると、上
記の固化された濃縮物が図１の右方に運ばれ、その右端
部で下方に放出される。Subsequently, the solenoid valves 54, 55 and 56 are closed,
When the hydraulic cylinder 40 is operated to retract the piston rod 41 and raise the pressure box 42 and the filter frame 44, the solidified concentrate is left on the filter cloth 31. Then, when the belt-shaped filter cloth 31 is driven and rotated clockwise, the above-mentioned solidified concentrate is carried rightward in FIG. 1 and discharged downward at the right end.
【００２０】[0020]
【発明の効果】上記のように、請求項１に記載した発明
は、水平に移動可能な濾布の下側に濾板を設置し、この
濾板の下側に濾液受け皿を設け、上方に流体シリンダに
接続されて昇降する加圧箱を設け、この加圧箱の下に濾
枠を固定し、加圧箱の上面に圧搾空気供給のためのエア
パイプを接続し、上記濾枠と濃縮物貯留器の底部とを濃
縮物供給管で接続し、かつ濃縮物貯留器の上部および濃
縮物供給管の濾枠側端部にそれぞれ圧搾空気を供給でき
るようにしたものであるから、流体シリンダの作動によ
り加圧箱を下降させて該加圧箱の下の濾枠下面を下方の
濾板の枠体上面に濾布を介して密着させ、この状態で濃
縮物貯留器の上部に圧搾空気を送って濾枠内側の濾過室
に濃縮物を直接、かつ迅速に供給し、加圧箱に圧搾空気
を送ることにより、ダイアフラムを介して濃縮物を強い
圧力で圧搾することができ、従来のように多数のバケッ
トを必要としない。また、上記の圧搾時に濾枠内に圧搾
空気を送って濃縮物を脱水し、更に圧搾終了後に濾枠内
に圧搾空気を送って上記の固化した濃縮物を濾枠から押
出すことができる。しかも、濾枠内の濃縮物の下に濾布
および濾布受け板が位置するので、水はけが良好で、濃
縮物の残液が下方の濾液受け皿に円滑に流下する。そし
て、濾布がコンベヤを兼ねるので、加圧箱を上昇させた
後、濾布を水平に移動させて上記の固化された濃縮物を
直ちに搬送し、運び出すことができ生産性が従来に比し
て大幅に向上する。As described above, according to the first aspect of the present invention, a filter plate is provided below a horizontally movable filter cloth, a filtrate receiving tray is provided below the filter plate, and a filter tray is provided below the filter plate. A pressurizing box connected to the fluid cylinder and moving up and down is provided, a filter frame is fixed below the pressurizing box, an air pipe for supplying compressed air is connected to the upper surface of the pressurizing box, and the filter frame and the concentrate are connected . Fill the bottom of the reservoir
Connect with the condensate supply line, and
Compressed air can be supplied to the filter frame end of the compressed material supply pipe.
Since it is obtained by the so that is brought into close contact through the filter cloth the濾枠lower surface under lowers the pressure圧箱by operation of the fluid cylinders the pressurized圧箱to the frame upper surface of the filtration plate of the lower, the Dark in state
By sending compressed air directly to the upper part of the compaction storage tank to supply the concentrate directly and quickly to the filtration chamber inside the filter frame , and sending compressed air to the pressurized box, the concentrate is strongly compressed through the diaphragm. And does not require a large number of buckets as in the prior art. In addition, during the above-mentioned pressing,
Air is sent to dehydrate the concentrate, and after the pressing is completed,
Compressed air is sent to the filter
Can be put out. In addition, since the filter cloth and the filter cloth receiving plate are located below the concentrate in the filter frame, drainage is good, and the residual liquid of the concentrate flows down smoothly to the lower filtrate receiving tray. And since the filter cloth also serves as a conveyor, after raising the pressurizing box, the filter cloth is moved horizontally and the above-mentioned solidified concentrate can be immediately conveyed and carried out. Greatly improved.
【００２１】請求項２に記載した発明は、上記の請求項
１に記載された発明において、濾布受け板を耐圧性の多
孔支持板とその上に重ねられた金網とで形成し、濾板を
皿形に形成したものであるから、固化した濃縮物のはみ
出しを防ぎ、また重い多孔支持板の目詰まりを防ぎ、こ
の多孔支持板を外すことなく軽い金網のみを外して掃除
することができるため、濾布受け板を手軽に掃除して常
に目詰まりのない状態に保つことができる。According to a second aspect of the present invention, in the first aspect of the present invention, the filter cloth receiving plate is formed by a pressure-resistant porous support plate and a wire mesh superposed thereon. Is formed in a dish shape, so that the solidified concentrate is prevented from protruding, the heavy porous support plate is prevented from being clogged, and only the light wire mesh can be removed and cleaned without removing the porous support plate. Therefore, it is possible to easily clean the filter cloth receiving plate and always keep a state without clogging.
【００２２】請求項３に記載された発明は、請求項１ま
たは２に記載された発明において、濾布受け板および濾
枠が接する対向部にパッキングを固定したものであるか
ら、濾枠内の濃縮物を圧搾する際、濾布受け板および濾
枠の合わせ面から濃縮物の漏洩を効果的に防ぐことがで
きる。According to a third aspect of the present invention, in the first or second aspect, the packing is fixed to an opposing portion where the filter cloth receiving plate and the filter frame are in contact with each other. When squeezing the concentrate, leakage of the concentrate from the mating surface of the filter cloth receiving plate and the filter frame can be effectively prevented.
【００２３】[0023]
【図１】この発明の回転濾過装置を含む実施例の全体略
図である。FIG. 1 is an overall schematic view of an embodiment including a rotary filtration device of the present invention.
【図２】図１の加圧濾過装置の縦断面図である。FIG. 2 is a longitudinal sectional view of the pressure filtration device of FIG.
【図３】図２のＡ−Ａ線矢視図である。FIG. 3 is a view taken in the direction of arrows AA in FIG. 2;
１０：回転濾過装置、１１：外筒、１２：多孔管軸、１
３：濾過円筒、１４：濾布、１７、１９：開閉弁、１
８：濃縮物貯留器、２０：濃縮物供給管、３０：加圧濾
過装置、３１：無端のベルトコンベヤ状に接続した濾
布、３４：濾板、３５：枠体、３６：濾布受け板、３６
ａ：多孔支持板、３６ｂ：金網、３９：濾液受け皿、４
０：油圧シリンダ（流体シリンダ）、４２：加圧箱、４
３：ダイアフラム、４４：濾枠、５０：エアコンプレッ
サ、５１、５２、５３：エアパイプ、５４、５５、５
６：電磁弁。10: rotary filtration device, 11: outer cylinder, 12: perforated pipe shaft, 1
3: filter cylinder, 14: filter cloth, 17, 19: open / close valve, 1
8: concentrate reservoir, 20: concentrate supply pipe, 30: pressure filtration device, 31: filter cloth connected in the form of an endless belt conveyor, 34: filter plate, 35: frame, 36: filter cloth receiving plate , 36
a: porous support plate, 36b: wire mesh, 39: filtrate receiving tray, 4
0: hydraulic cylinder (fluid cylinder), 42: pressurized box, 4
3: diaphragm, 44: filter frame, 50: air compressor, 51, 52, 53: air pipe, 54, 55, 5
6: Solenoid valve.
Claims (3)
物を集め、これを所定量ずつ圧搾して固化するようにし
た加圧濾過装置において、水平に移動することができる
濾布の下側に額縁状の枠体とその内側に固定された多孔
性の濾布受け板とからなる濾板を設置し、この濾板の下
側に濾液受け皿を設け、上記濾板の上方に流体シリンダ
に接続されて昇降し、下面にダイアフラムを備えた加圧
箱を上記濾板と対向状に設け、この加圧箱の下面縁部に
濾枠を固定して上記ダイアフラムの下側に濾過室を形成
し、上記加圧箱の上面に圧搾空気供給のためのエアパイ
プを、また上記濾枠に上記濃縮物供給のための濃縮物供
給管の一端をそれぞれ接続し、この濃縮物供給管の他端
に上記濃縮物貯留器の底部を開閉弁を介して接続し、こ
の濃縮物貯留器の上部および上記濃縮物供給管の一端側
にそれぞれ圧搾空気供給のためのエアパイプを接続した
ことを特徴とする加圧濾過装置。1. Concentration obtained by pre-filtration of a stock solution for filtration
Collect the material and squeeze it by a predetermined amount so that it solidifies.
In a pressure filtration device, a filter plate consisting of a frame-shaped frame and a porous filter cloth receiving plate fixed inside the filter frame is installed below the filter cloth that can move horizontally. A filtrate receiving tray is provided below the plate, connected to a fluid cylinder above the filter plate and moved up and down, and a pressure box provided with a diaphragm on the lower surface is provided opposite to the filter plate, and a lower surface of the pressure box is provided. securing the濾枠the edges to form a filter chamber on the lower side of the diaphragm, concentrated for the concentrate supply air pipe for compressed air supply to the upper surface of the pressing圧箱, also in the濾枠One end of each supply pipe is connected to the other end of this concentrate supply pipe.
Connected to the bottom of the concentrate reservoir via an on-off valve.
Of the concentrate reservoir and one end of the concentrate supply pipe
Pressure filtration devices, characterized in that an air pipe for supplying compressed air is connected to each of the pressure filtration devices.
いて、濾布受け板が耐圧性の多孔支持板とその上に重ね
られた金網とで形成され、多孔支持板の縁部を囲む枠体
の上面に内側よりも外側が高くなるように傾斜が付され
て濾板が皿形に形成されている加圧濾過装置。2. The pressure filtration device according to claim 1, wherein the filter cloth receiving plate is formed of a pressure-resistant porous support plate and a wire mesh superposed thereon, and surrounds an edge of the porous support plate. A pressure filtration device in which an upper surface of a frame is inclined so that an outer side is higher than an inner side, and a filter plate is formed in a dish shape.
装置において、濾布受け板および濾枠の濾布を挟んで接
触する対向部にパッキングが固定された加圧濾過装置。3. The pressure filtration device according to claim 1, wherein the packing is fixed to an opposing portion of the filter cloth receiving plate and the filter frame, which is in contact with the filter cloth therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6022083A JP2696666B2 (en) | 1994-01-21 | 1994-01-21 | Pressure filtration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6022083A JP2696666B2 (en) | 1994-01-21 | 1994-01-21 | Pressure filtration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07204418A JPH07204418A (en) | 1995-08-08 |
| JP2696666B2 true JP2696666B2 (en) | 1998-01-14 |
Family
ID=12072991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6022083A Expired - Fee Related JP2696666B2 (en) | 1994-01-21 | 1994-01-21 | Pressure filtration device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2696666B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024048159A1 (en) * | 2022-08-30 | 2024-03-07 | 三菱化工機株式会社 | Filtering machine of filter plate type |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09136004A (en) * | 1995-11-10 | 1997-05-27 | Daiwa Kikai Seisakusho:Kk | Filter press device for liquid carrying stone powder or the like and upper block for use in the same |
| DE102008047427A1 (en) * | 2008-09-15 | 2010-04-15 | Bähr, Albert, Dipl.-Ing. | Process and apparatus for solid-liquid separation of mixtures and suspensions |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4891575U (en) * | 1972-02-03 | 1973-11-02 | ||
| JPS5237034Y2 (en) * | 1972-12-21 | 1977-08-23 | ||
| JPS50143156A (en) * | 1974-05-06 | 1975-11-18 | ||
| JPS52170367U (en) * | 1976-06-17 | 1977-12-24 | ||
| DE2733842C3 (en) * | 1977-07-27 | 1981-01-22 | Wolfgang 6078 Neu-Isenburg Heilmann | Device for filtering liquids or pasty masses |
| JPS5924108U (en) * | 1982-08-05 | 1984-02-15 | 日本建鐵株式会社 | Filter cloth winding type filtration machine |
| JPS6056600B2 (en) * | 1982-11-30 | 1985-12-11 | 株式会社 近企プラント | Continuous automatic pressure dehydration equipment |
-
1994
- 1994-01-21 JP JP6022083A patent/JP2696666B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024048159A1 (en) * | 2022-08-30 | 2024-03-07 | 三菱化工機株式会社 | Filtering machine of filter plate type |
| JP7447366B1 (en) | 2022-08-30 | 2024-03-11 | 三菱化工機株式会社 | Filter plate type filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07204418A (en) | 1995-08-08 |
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