JPH02218409A - Method for recovering residual filtered liquid in filter cylinder in solid-liquid separation-recovery process - Google Patents
Method for recovering residual filtered liquid in filter cylinder in solid-liquid separation-recovery processInfo
- Publication number
- JPH02218409A JPH02218409A JP3933689A JP3933689A JPH02218409A JP H02218409 A JPH02218409 A JP H02218409A JP 3933689 A JP3933689 A JP 3933689A JP 3933689 A JP3933689 A JP 3933689A JP H02218409 A JPH02218409 A JP H02218409A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- filtrate
- residual
- pipe
- cylinder
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 29
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 23
- 238000001914 filtration Methods 0.000 claims abstract description 39
- 239000000706 filtrate Substances 0.000 claims description 57
- 239000011550 stock solution Substances 0.000 claims description 24
- 238000000926 separation method Methods 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 14
- 239000002893 slag Substances 0.000 claims description 7
- 239000012065 filter cake Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000010802 sludge Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、各種産業廃液や上、下水道の汚水等を浄化処
理する際に生じる汚泥水の濾過又は濃縮、あるいは有価
物回収に使用される固・液分離回収方法における濾過筒
内の残留濾液回収方法に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention is used for filtering or concentrating sludge water generated during purification of various industrial waste liquids, water and sewerage sewage, or for recovering valuables. The present invention relates to a method for recovering residual filtrate in a filtration column in a solid/liquid separation and recovery method.
（従来の技術） 従来、汚泥水の固・液分離回収方法として。(Conventional technology) Traditionally, as a solid/liquid separation and recovery method for sludge water.
外面にフィルターを有する上端開口の濾過筒をその開口
上端を処理槽外へ連通させた状態で処理槽内に垂設し、
該濾過筒の外部に供給される原液を上記フィルターで濾
過し、濾滓は上記フィルター外面で捕捉すると共に濾液
は上記濾過筒内部から処理槽外へ排出し、所定の濾過経
過後濾滓の回収工程として、処理槽内の残留原液を排出
した後濾過筒内に加圧空気を逆送して濾過筒内に残存す
る濾液をフィルターを通して逆流させ、それによりフィ
ルター外面に付着する濾滓を剥離して処理槽外へ排出す
る方法が知られている。しかし、この方法では、濾過筒
内に残存する濾液が濾滓に逆流されるため高濃度の濾滓
が回収できないばかりでなく、濾過筒内に残存する濾液
が無駄になり、特に処理すべき汚泥水の濃度が比較的高
いため得られる濾液がもともと少ないときは、該濾液が
濾過筒内に残留することは甚だ不都合であるし、又濾液
にアミノ酸、抗生物質等の有価物が溶存している場合も
その欠点が著しい。A filter cylinder with an open top end having a filter on the outer surface is vertically installed in the processing tank with the upper end of the opening communicating with the outside of the processing tank,
The stock solution supplied to the outside of the filtration cylinder is filtered by the filter, the filtrate is captured on the outer surface of the filter, and the filtrate is discharged from the inside of the filtration cylinder to the outside of the processing tank, and after a predetermined filtration period, the filtrate is collected. As a process, after the residual stock solution in the treatment tank is discharged, pressurized air is sent back into the filtration cylinder to cause the filtrate remaining in the filtration cylinder to flow back through the filter, thereby peeling off the filtrate adhering to the outer surface of the filter. There is a known method for discharging the waste to the outside of the treatment tank. However, with this method, the filtrate remaining in the filtration cylinder is flowed back into the filtration slag, which not only makes it impossible to recover high-concentration filtrate, but also wastes the filtrate remaining in the filtration cylinder. When the amount of filtrate obtained is small due to the relatively high concentration of water, it is extremely inconvenient for the filtrate to remain in the filter cylinder, and valuable substances such as amino acids and antibiotics are dissolved in the filtrate. The drawbacks are also significant.
そこで、濾過筒内に残存する濾液の回収方法として１両
端閉成の濾過筒に内管をその閉成上端を貫通して下端近
くまで挿入垂下してなる二重管式濾過筒をその内管を処
理槽外へ連通させた状態で処理槽内に垂設し、所定の濾
過経過後処理槽内の残留原液を排出した後、上記内管を
通じて濾過筒内に吸気作用を及ぼし、それにより濾過筒
の残留濾液を内管を経て吸引回収する方法が提案された
。Therefore, as a method for recovering the filtrate remaining in the filtration cylinder, a double-pipe filtration cylinder is constructed by inserting an inner tube into a filtration cylinder that is closed at both ends, penetrating the closed upper end of the filtration cylinder, and penetrating it to near the lower end. is vertically installed in the processing tank in a state where it communicates with the outside of the processing tank, and after the predetermined filtration has passed, the remaining stock solution in the processing tank is discharged, and then air is sucked into the filter cylinder through the inner pipe, thereby causing the filtration. A method was proposed in which the residual filtrate in the cylinder was collected by suction through an inner tube.
しかし、この回収方法においては、濾過筒のフィルター
面に堆積する濾滓の通気抵抗が大きいため、吸引当初は
残留濾液の一部を吸引回収できても、直ちに濾過筒内の
圧力と吸引がゎの圧力が平衡に近づいて、それ以上の残
留濾液の吸引回収が不可能となる難点があった。However, in this collection method, the ventilation resistance of the filter slag deposited on the filter surface of the filtration tube is large, so even if some of the residual filtrate can be collected by suction at the beginning of suction, the pressure inside the filtration tube and the suction immediately increase. The problem was that the pressure of the filtrate approached equilibrium, making it impossible to suction and collect any more residual filtrate.
（発明が解決しようとする課題）
本発明は、二重管式濾過筒を使用した固・液分離回収方
法において濾過筒に残留する濾液を十分に回収すること
を課題とする６
（課題を解決するための手段）
上記課題を解決するため１本発明の濾過筒内の残留濾液
回収方法は、
外面にフィルターを有する濾過筒内に内管を濾過筒上端
から下端近くまで挿入垂下してなる二重管式濾過筒を処
理槽内に垂設し、該濾過筒の外部に供給される原液を上
記フィルターで濾過し、濾滓は上記フィルターで捕捉す
ると共に濾液は上記濾過筒内部から処理槽外へ排出回収
し、所定の濾過経過後上記フィルター外面に付着した濾
滓を剥離して処理槽外へ排出回収する固・液分離回収方
法において、
所定の濾過経過後上記濾滓剥離に先立ち、上記内管を経
て該内管下端がら濾過筒内に吸気作用を及ぼさせると共
に濾過筒の上端部を大気に連通させて該濾過筒内の残留
濾液を上記内管を通じて吸引回収する。(Problems to be Solved by the Invention) An object of the present invention is to sufficiently recover the filtrate remaining in the filter cylinder in a solid/liquid separation and recovery method using a double pipe filter cylinder. In order to solve the above problems, the method for recovering residual filtrate in a filtration cylinder of the present invention includes: inserting and hanging an inner pipe into a filtration cylinder having a filter on its outer surface from the top end of the filtration cylinder to near the bottom end; A double-pipe filter cylinder is installed vertically in the processing tank, and the stock solution supplied to the outside of the filter cylinder is filtered by the filter.The filter slag is captured by the filter, and the filtrate is passed from inside the filter cylinder to the outside of the processing tank. In the solid/liquid separation and recovery method, in which the filter slag adhering to the outer surface of the filter is peeled off after a predetermined filtration period, and the filter slag is discharged and collected outside the processing tank, the above-mentioned An air intake action is applied to the filtration cylinder from the lower end of the inner tube through the inner tube, and the upper end of the filtration cylinder is communicated with the atmosphere to collect the remaining filtrate in the filtration cylinder by suction through the inner tube.
構成をとったのである。以下図面を参照して本発明の実
施例について説明する。The structure was adopted. Embodiments of the present invention will be described below with reference to the drawings.
（実施例）
まず１本発明に使用される二重管式濾過筒（１）につい
て説明する。第２図示のように周壁に多数の孔（３）・
・・をあけた両端開口の多孔筒（２）の一端にキャップ
（４）を嵌着して開口端を閉成すると共に、他端に開口
（６）を有する筒状ソケット（５）を嵌着し、この多孔
筒体の外周面に網等のスペーサ（７）を巻き、その上に
天然繊維１合成繊維等の糸又はフィラメントで製織又は
編成した濾布筒からなるフィルター（８）を被装して一
端開口（６）の濾過筒（９）を形成し、この濾過筒（９
）内に内管（１ｏ）を一端の開口（６）から挿入し、挿
入端を他端の内底近くに位置させている。 （１１）は
、上記内管（１０）の挿入端部に中心部において取付け
られたゴム、合成樹脂等からなる可撓性の半球状多孔座
板で、内管（１０）を正位置に保持する。（１２）はソ
ケット（５）のフランジ部である。(Example) First, a double pipe filter cylinder (1) used in the present invention will be explained. As shown in the second diagram, there are many holes (3) in the peripheral wall.
Fit a cap (4) to one end of a porous tube (2) with openings at both ends to close the open end, and fit a cylindrical socket (5) having an opening (6) at the other end. A spacer (7) such as a net is wrapped around the outer peripheral surface of this porous cylinder, and a filter (8) consisting of a filter cloth tube woven or knitted with yarn or filament of natural fibers, synthetic fibers, etc. is covered thereon. to form a filter cylinder (9) with one end open (6), and this filter cylinder (9)
), the inner tube (1o) is inserted through the opening (6) at one end, and the insertion end is positioned near the inner bottom of the other end. (11) is a flexible hemispherical perforated seat plate made of rubber, synthetic resin, etc. that is attached at the center to the insertion end of the inner tube (10), and holds the inner tube (10) in the correct position. do. (12) is the flange portion of the socket (5).
次に、上記二重管式濾過筒（１）を備える固・液分離回
収装置について説明する。第１図において。Next, a solid/liquid separation and recovery device equipped with the above-mentioned double pipe filter column (1) will be explained. In FIG.
処理槽（１３）内の上部に隔壁（１４）を設けて槽内を
上室（１５）及び下室（Ｉ６）に区分し、上記隔壁（１
４）には、上記二重管式濾過筒（１）のソケット（５）
を第２図示のように下から貫入して取付環（１７）を螺
着することにより、該濾過筒（１）をその開口（６）を
上室（１０）内に開いた状態で下室（１６）内に垂直に
懸架すると共に、上記内管（１０）の上端を上室（１５
）内に延長して残留濾液排出管（１８）に接続し、該排
出管（１８）を処理槽（１３）を貫通して槽外に延長し
である。A partition wall (14) is provided at the upper part of the processing tank (13) to divide the tank into an upper chamber (15) and a lower chamber (I6).
4) includes the socket (5) of the double-pipe filter cylinder (1).
As shown in the second figure, the filter tube (1) is inserted into the lower chamber with its opening (6) open into the upper chamber (10) by screwing the mounting ring (17). (16), and the upper end of the inner tube (10) is suspended vertically within the upper chamber (15).
) and connected to a residual filtrate discharge pipe (18), and the discharge pipe (18) passes through the processing tank (13) and extends to the outside of the tank.
上記下室（１６）の下端部には元管（１９）を介して原
液供給管（２０）、原液排出管（２１）及び濾滓排出管
（２２）を、下室（１６）の上部に大気開放管（２３）
をそれぞれ接続し、その原液供給管（２０）は原液供給
弁（２４）及びポンプ（２５）を介して原液タンク（図
示路）に接続し、原液排出管（２１）は原液排出弁（２
６）を介して原液タンク上に開口し、又濾滓排出管（２
２）は濾滓排出弁（２７）を介して濾滓回収タンク（図
示略）に開口し、大気開放管（２３）は大気開放弁（２
８）を介して大気中に開口している。又、上記上室（１
５）には、先端を隔壁（１４）近くまで垂下する濾液排
出管（２９）、加圧空気供給管（３０）及び大気開放管
（３１）をそれぞれ接続し、その濾液排出管（２９）は
濾液排出弁（３２）を介して濾液回収タンク（図示略）
に開口し、加圧空気供給管（３０）は加圧空気供給弁（
３３）を介してコンプレッサー等の加工手段（図示略）
に接続し、大気開放管（３１）は大気開放弁（３４）を
介して大気中に開口している。上記内管（１０）と接続
された残留濾液排出管（１８）は残留濾液排出弁（３５
）及び真空ポンプ（３６）等の吸引手段を介して上記濾
液回収タンクに開口している。A stock solution supply pipe (20), a stock solution discharge pipe (21), and a filtrate discharge pipe (22) are connected to the lower end of the lower chamber (16) through the main pipe (19) to the upper part of the lower chamber (16). Air release pipe (23)
The stock solution supply pipe (20) is connected to the stock solution tank (path shown) via the stock solution supply valve (24) and pump (25), and the stock solution discharge pipe (21) is connected to the stock solution discharge valve (2).
6) onto the stock solution tank, and a filter dregs discharge pipe (2
2) opens into a sludge recovery tank (not shown) via a sludge discharge valve (27), and the atmosphere release pipe (23) opens into an atmosphere release valve (2).
8) to the atmosphere. In addition, the above upper chamber (1
5) is connected to a filtrate discharge pipe (29), a pressurized air supply pipe (30), and an atmosphere release pipe (31) whose tips hang down near the partition wall (14), and the filtrate discharge pipe (29) A filtrate recovery tank (not shown) via a filtrate discharge valve (32)
The pressurized air supply pipe (30) opens to the pressurized air supply valve (
33) processing means such as a compressor (not shown)
The atmosphere release pipe (31) is connected to the atmosphere through an atmosphere release valve (34). A residual filtrate discharge pipe (18) connected to the inner pipe (10) is connected to a residual filtrate discharge valve (35).
) and a suction means such as a vacuum pump (36) to the filtrate recovery tank.
上記固・液分離回収装置を使用した本発明の濾過筒内の
残留濾液回収方法の実施例について固・液分離回収方法
と共に次に説明する。An embodiment of the method for recovering the residual filtrate in the filtration cylinder of the present invention using the above-mentioned solid/liquid separation and recovery device will be described below together with the solid/liquid separation and recovery method.
原液供給弁（２４）及び大気開放弁（２８）を開き、ポ
ンプ（２５）を始動して原液を供給管（２０）を経て処
理槽王室（１６）内に圧送する。下室（１６）内に原液
が充満したら大気開放弁（２８）を閉じ、濾液排出弁（
３２）を開く、それにより下室（１６）内に圧送された
原液は二重管式濾過筒（１）のフィルター（８）で濾過
され、その濾滓はフィルター（８）の外面に捕捉され、
濾液は濾過筒（９）内から上端開口（６）を経て上室（
１５）内に送られ、ついで濾液排出管（２９）を通って
濾液回収タンクに回収される。The stock solution supply valve (24) and the atmosphere release valve (28) are opened, the pump (25) is started, and the stock solution is pumped into the processing tank royal chamber (16) through the supply pipe (20). When the lower chamber (16) is filled with the stock solution, close the atmosphere release valve (28) and close the filtrate discharge valve (
32) is opened, whereby the stock solution pumped into the lower chamber (16) is filtered by the filter (8) of the double pipe filter cylinder (1), and the filter residue is captured on the outer surface of the filter (8). ,
The filtrate flows from inside the filter cylinder (9) through the upper opening (6) and into the upper chamber (
15) and then collected through a filtrate discharge pipe (29) into a filtrate collection tank.
所定の濾過経過後、［液供給弁（２４）及び濾液排出弁
（３２）を閉じ、ポンプ（２５）を停止する。次に、真
空ポンプ（３６）を始動し、残留濾液排出弁（３５）を
開いて残留濾液排出管（１８）、内管（ｌＯ）を通じて
濾過筒（９）内に吸引作用を加え（予備吸引）、ついで
吸引を継続しつつ大気開放弁（３４）及び原液排出弁（
２６）を開く。上記大気開放弁（３４）の開口により大
気圧の空気が王室（１５）を経て開口（６）から濾過筒
（９）内に流入して濾過筒（９）内の残留濾液の液面に
大気圧を及ぼし、その結果残留濾液は上から大気圧を受
けつつ下から負圧の吸引を受けることとなって、内管（
ｉｏ）の開口下端から円滑に且つ完全に吸引され、排出
管（１８）を経て濾液回収タンクに回収される。After a predetermined period of filtration, the liquid supply valve (24) and filtrate discharge valve (32) are closed, and the pump (25) is stopped. Next, the vacuum pump (36) is started, the residual filtrate discharge valve (35) is opened, and suction is applied to the inside of the filter cylinder (9) through the residual filtrate discharge pipe (18) and the inner pipe (IO) (preliminary suction ), then, while continuing suction, open the atmosphere release valve (34) and the stock solution discharge valve (
26) Open. Due to the opening of the atmosphere release valve (34), air at atmospheric pressure flows into the filter cylinder (9) from the opening (6) through the royal chamber (15), and the liquid level of the residual filtrate in the filter cylinder (9) increases. As a result, the residual filtrate receives atmospheric pressure from above and negative pressure suction from below, causing the inner tube (
io) is smoothly and completely suctioned from the open lower end of the filtrate collection tank through the discharge pipe (18).
又、上記予備吸引によりフィルター（８）の外面に付着
した濾滓がさらに強くフィルターに吸着され、それによ
り上記原液排出弁（２６）の開口による下室（１６）内
の残存原液排出時に、上記濾滓がフィルター（８）外面
から剥落して排出原液に混入することがない。Moreover, the filter slag adhering to the outer surface of the filter (8) is even more strongly adsorbed by the filter due to the preliminary suction, so that when the remaining stock solution in the lower chamber (16) is discharged by opening the stock solution discharge valve (26), The filter dregs will not fall off from the outer surface of the filter (8) and be mixed into the discharged stock solution.
さらに、上記残留濾液排出工程と残留原液排出工程とが
同時的に行われるから、作業時間が短縮される。Furthermore, since the residual filtrate discharge step and the residual stock solution discharge step are performed simultaneously, the working time is shortened.
残留濾液排出及び残留原液排出後、上記排出弁（３５）
及び大気開放弁（３２）を閉じ、真空ポンプ（３６）を
停止する。ついで大気開放弁（２８）及び加圧空気供給
弁（３３）を開き、加圧空気を上室（１５）を経て開口
（６）から濾過筒（９）内に供給してフィルター（８）
の内側から外側へ圧送させ、それによりフィルター（８
）外面に付着する濾滓を剥離する。剥離した濾滓は濾滓
排出弁（２７）を開いて濾滓回収タンクに回収する。After discharging the residual filtrate and the residual stock solution, the discharge valve (35)
Then, the atmosphere release valve (32) is closed and the vacuum pump (36) is stopped. Next, the atmosphere release valve (28) and the pressurized air supply valve (33) are opened, and pressurized air is supplied into the filter cylinder (9) from the opening (6) through the upper chamber (15) to fill the filter (8).
The filter (8
) Peel off the filter cake adhering to the outer surface. The separated filter dregs are collected in the dregs collection tank by opening the dregs discharge valve (27).
上側のほか、所定の濾過経過後、予備吸引を行わずに下
室（１６）内の残存原液排出を行い１次に上側と同様の
濾過筒（９）内の残留濾液の吸引排出を行う場合もある
。In addition to the upper case, after a predetermined filtration period, the remaining stock solution in the lower chamber (16) is discharged without performing preliminary suction, and the remaining filtrate in the filtration cylinder (9) is firstly suctioned and discharged in the same way as in the upper part. There is also.
本発明の使用される二重管式濾過筒の他の実施例（１ａ
）は、第３図示のように上下両端閉成の濾過筒（９ａ）
内に内管（１０ａ）を閉成上端を貫通して挿入すると共
に、該閉成上端に大気開放管（３１ａ）の−端を接続し
、他の構造は上側と実質的に同一のもので、これを備え
る固・液分離回収装置は、−例として第３図示のように
上記大気開放管（３１ａ）の他端を処理槽外へ導き、大
気開放弁（３４ａ）を介して大気中に開口させると共に
、内管（１０ａ）の上端を王室（１５ａ）内に開口させ
、残留濾液排出管（１８ａ）は濾液排出管（２９ａ）に
分岐接続し、他の構成は第１図と実質的に同一である。Other embodiments of the double-pipe filter cylinder used in the present invention (1a
) is a filter cylinder (9a) with both upper and lower ends closed as shown in the third figure.
The inner tube (10a) is inserted into the inner tube through the closed upper end, and the negative end of the atmosphere open tube (31a) is connected to the closed upper end, and the other structure is substantially the same as the upper side. , the solid/liquid separation and recovery device equipped with this is configured such that - for example, as shown in the third diagram, the other end of the atmosphere opening pipe (31a) is led out of the processing tank, and the air is exposed to the atmosphere via the atmosphere opening valve (34a). At the same time, the upper end of the inner pipe (10a) is opened into the royal chamber (15a), and the residual filtrate discharge pipe (18a) is branched and connected to the filtrate discharge pipe (29a), and the other configurations are substantially the same as in FIG. is the same as
本装置による濾過筒（１ａ）内の残留濾液排出方法は、
大気開放管（３１ａ）を通じて濾過筒（９ａ）内に大気
圧を及ぼしつつ、内管（１０ａ）を通じて濾液排出管（
２９ａ）及び残留濾液排出管（１８ａ）から吸引排出す
るものである。The method for discharging the residual filtrate in the filter cylinder (1a) using this device is as follows:
While applying atmospheric pressure inside the filter cylinder (9a) through the atmosphere opening pipe (31a), the filtrate discharge pipe (
29a) and the residual filtrate discharge pipe (18a).
（発明の効果）
本発明の固・液分離回収方法における濾過筒内の残留濾
液回収方法によれば、濾過筒内の残留濾液に上から大気
圧を加えつつ下から負圧の吸引を行うこととなり、それ
により該残留濾液を内管の挿入下端から円滑に且つほと
んど完全に吸引回収することができるのである。(Effects of the Invention) According to the method for recovering the residual filtrate in the filtration cylinder in the solid/liquid separation and recovery method of the present invention, negative pressure is suctioned from below while applying atmospheric pressure to the residual filtrate in the filtration cylinder from above. Therefore, the residual filtrate can be smoothly and almost completely suctioned and collected from the lower insertion end of the inner tube.
図面は本発明の実施例を示し、第１図は、固・液分離回
収装置の路線縦断面図、第２図は二重管式濾過筒の拡大
縦断面図、第３図は固・液分離回収装置の他の例を示す
路線縦断面図である。
１・・・二重管式濾過筒、８・・・フィルター ９・・
・濾過筒、１０・・・内管、１３・・・処理槽、１８・
・・残留濾液排出管。
生−二」ｚ
オーユ」２
手続補、正書
平成２年４月１７日
特許庁長官 吉 １）文 毅 殿
１、事件の表示
平成１年特許願第３９３３６号
２、発明の名称
固・液分離回収方法における濾過筒内の残留濾液回収方
法
３、補正をする者
事件との関係 特許出願人
名 称 オルガノ株式会社
４、代理人
５、補正命令の日付
自発
（２）明細書中第６頁第１Ｏ行目から同頁筒１１行目ｒ
上室（１０）内に」とあるを「上室（１５）内に」と訂
正する。
（３）明細書中筒７頁第１Ｏ行目「加工手段」とあるを
「加圧手段」と訂正する。
（４）明細書中筒８頁第１４行目「大気開放弁（３４）
Ｊとあるを「大気開放弁（３４）、（２８）Ｊと訂正
する。
（５）明細書中筒９頁第３行目「上記予備吸引により」
とあるを「上述のごとく濾過筒（９）内に吸引作用を加
えながら大気開放弁（２８）を開口し、下室（１６）を
大気に連通させることにより」と訂正する。
（６）明細書中筒９頁第１３行目［大気開放弁（３２）
を」とあるを［大気開放弁（３４）、（２８）を」と訂
正する。
（７）明細書中筒９頁第１４行目「大気開放弁（２８）
及び」とあるを削除する。
（８）明細書中筒９真下から２行目「濾滓排出弁（２８
）を開いて」とあるつぎに「圧送し、」を挿入する。
（９）明細書中筒１０頁第５行目「本発明の」とあるを
「本発明に」と訂正する。The drawings show embodiments of the present invention, in which Fig. 1 is a vertical cross-sectional view of a solid/liquid separation and recovery device, Fig. 2 is an enlarged longitudinal cross-sectional view of a double-pipe filter cylinder, and Fig. 3 is a solid/liquid separation/recovery device. FIG. 7 is a longitudinal cross-sectional view of a route showing another example of the separation and recovery device. 1...Double pipe filter cylinder, 8...Filter 9...
・Filter cylinder, 10...Inner pipe, 13...Processing tank, 18.
...Residual filtrate discharge pipe. Procedural amendment, official document April 17, 1990 Director General of the Patent Office Yoshi 1) Moon Takeshi 1, Indication of the case 1999 Patent Application No. 39336 2, Name of the invention Solid/Liquid Relationship between the residual filtrate recovery method in the filter cylinder in the separation recovery method 3 and the case of the person making the amendment Patent applicant name Organo Co., Ltd. 4, agent 5, date of amendment order Voluntary (2) Page 6 of the specification From line 10 to line 11 of the same page r
"In the upper chamber (10)" should be corrected to "In the upper chamber (15)." (3) In the specification, page 7, line 1, "processing means" is corrected to "pressing means." (4) Line 14 of page 8 of the specification: “Atmospheric release valve (34)
J is corrected to ``Atmospheric release valve (34), (28) J.'' (5) Line 3 of page 9 of the specification, ``By the above preliminary suction.''
The statement has been corrected to read, "By opening the atmosphere release valve (28) while applying suction to the filter cylinder (9) as described above, and communicating the lower chamber (16) with the atmosphere." (6) Line 13, page 9 of the specification [Atmospheric release valve (32)
Correct the phrase "atmospheric release valves (34) and (28)." (7) Line 14 of page 9 of the specification: “Atmospheric release valve (28)
and ” will be deleted. (8) Second line from the bottom of cylinder 9 in the specification: “Filtration discharge valve (28
), and then insert "pressure-fed,". (9) On page 10 of the specification, line 5, the phrase ``of the present invention'' is corrected to ``in accordance with the present invention.''
Claims (1)
から下端近くまで挿入垂下してなる二重管式濾過筒を処
理槽内に垂設し、該濾過筒の外部に供給される原液を上
記フィルターで濾過し、濾滓は上記フィルターで捕捉す
ると共に濾液は上記濾過筒内部から処理槽外へ排出回収
し、所定の濾過経過後上記フィルター外面に付着した濾
滓を剥離して処理槽外へ排出回収する固・液分離回収方
法において、 所定の濾過経過後上記濾滓剥離に先立ち、上記内管を経
て該内管下端から濾過筒内に吸気作用を及ぼさせると共
に濾過筒の上端部を大気に連通させて該濾過筒内の残留
濾液を上記内管を通じて吸引回収する、 ことを特徴とする固・液分離回収方法における濾過筒内
の残留濾液回収方法。[Scope of Claims] A double-tube type filter tube, which is formed by inserting and hanging an inner tube from the top end of the filter tube to near the bottom end into a filter tube having a filter on the outer surface, is installed vertically in the processing tank, and the outside of the filter tube is suspended. The stock solution supplied to the filter is filtered by the filter, the filter slag is captured by the filter, and the filtrate is discharged and recovered from the inside of the filtration cylinder to the outside of the processing tank. In a solid/liquid separation and recovery method in which the filter cake is peeled off and then discharged and collected outside the processing tank, after a predetermined period of filtration, and prior to the peeling off of the filter cake, an air suction action is applied from the lower end of the inner tube through the inner tube into the filtration cylinder. A method for recovering residual filtrate in a filtration cylinder in a solid/liquid separation and recovery method, characterized in that the upper end of the filtration cylinder is communicated with the atmosphere and the residual filtrate in the filtration cylinder is suctioned and collected through the inner tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3933689A JPH02218409A (en) | 1989-02-21 | 1989-02-21 | Method for recovering residual filtered liquid in filter cylinder in solid-liquid separation-recovery process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3933689A JPH02218409A (en) | 1989-02-21 | 1989-02-21 | Method for recovering residual filtered liquid in filter cylinder in solid-liquid separation-recovery process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02218409A true JPH02218409A (en) | 1990-08-31 |
Family
ID=12550249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3933689A Pending JPH02218409A (en) | 1989-02-21 | 1989-02-21 | Method for recovering residual filtered liquid in filter cylinder in solid-liquid separation-recovery process |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02218409A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6135815A (en) * | 1984-07-28 | 1986-02-20 | Sanshin Seisakusho:Kk | Method and apparatus for draining liquid in machine body in upper part liquid collection type filter press |
| JPS61157315A (en) * | 1984-12-28 | 1986-07-17 | Japan Organo Co Ltd | Method for recovering solid and liquid components and filter cylinder used therein |
-
1989
- 1989-02-21 JP JP3933689A patent/JPH02218409A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6135815A (en) * | 1984-07-28 | 1986-02-20 | Sanshin Seisakusho:Kk | Method and apparatus for draining liquid in machine body in upper part liquid collection type filter press |
| JPS61157315A (en) * | 1984-12-28 | 1986-07-17 | Japan Organo Co Ltd | Method for recovering solid and liquid components and filter cylinder used therein |
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