JPS6355968B2 - - Google Patents
Info
- Publication number
- JPS6355968B2 JPS6355968B2 JP58120219A JP12021983A JPS6355968B2 JP S6355968 B2 JPS6355968 B2 JP S6355968B2 JP 58120219 A JP58120219 A JP 58120219A JP 12021983 A JP12021983 A JP 12021983A JP S6355968 B2 JPS6355968 B2 JP S6355968B2
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- filter cloth
- cake
- pressure
- separation
- 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
Links
- 239000002002 slurry Substances 0.000 claims description 59
- 239000004744 fabric Substances 0.000 claims description 50
- 239000010802 sludge Substances 0.000 claims description 24
- 238000000926 separation method Methods 0.000 claims description 20
- 238000011084 recovery Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 239000000706 filtrate Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Description
【発明の詳細な説明】
〈技術分類・分野〉
開示技術は、スラリーを高濃縮して脱液分離し
たケーキを剥離除去する技術分野に属する。[Detailed Description of the Invention] <Technical Classification/Field> The disclosed technology belongs to the technical field of peeling and removing a cake obtained by highly concentrating a slurry and deliquifying and separating it.
〈要旨の解説〉
而して、この発明は、スラリー分離装置の分離
ハウジングに一方側から他方側に挿通されたテト
ロン製等の濾布上に重力沈降槽等の装置により一
次分離された工場廃液等のスラリーを送給して載
置し、その後該濾布上の載置スラリー上に所定圧
の圧縮空気を供給して該スラリーに通気し、液分
を分離し、濾布上にケーキを形成させ、その後ハ
ウジングを解放して濾布を走行させ該濾布上から
該ケーキを剥離除去するようにしたスラリー分離
方法に関する発明であり、特に、上記濾布上に対
するスラリーの送給を特には積極的に加圧するこ
となく送給し、液分の初期漏出を避けて、該濾布
上に形成された濃縮スラツジ層上のスラリーに対
して４〜５Kg／cm2程度の圧縮空気を送給して加圧
脱液分離させ、濾過液を除去し、濾布を走行し該
濾布上のケーキを剥離除去するスラリー分離方法
に係る発明である。<Explanation of the gist> Accordingly, the present invention is directed to the production of industrial waste liquid that has been primarily separated by a device such as a gravity settling tank onto a filter cloth made of Tetron or the like that is inserted into the separation housing of a slurry separation device from one side to the other. After that, compressed air at a predetermined pressure is supplied onto the slurry placed on the filter cloth to aerate the slurry, the liquid is separated, and a cake is placed on the filter cloth. This invention relates to a slurry separation method in which the cake is peeled off and removed from the filter cloth by releasing the housing and running the filter cloth, and in particular, the slurry is fed onto the filter cloth. Compressed air of about 4 to 5 kg/cm 2 is delivered to the slurry on the concentrated sludge layer formed on the filter cloth by feeding without actively applying pressure to avoid initial leakage of liquid. This invention relates to a slurry separation method in which the slurry is deliquified and separated under pressure, the filtrate is removed, the slurry is run on a filter cloth, and the cake on the filter cloth is peeled off.
〈従来技術〉
周知の如く、製造工場における各種の加工工程
等から排出される廃液や残滓等の処理には出来る
だけ液分を分離し、含水率を低くしてスラツジ回
収率を高めることが廃液処理上必要である。<Prior art> As is well known, in order to treat waste fluids and residues discharged from various processing steps in manufacturing plants, it is important to separate the liquid content as much as possible to lower the water content and increase the sludge recovery rate. Necessary for processing.
このため、例えば、沈澱層等の重力沈降槽を設
けて一次分離したスラリーを用いて二次分離する
ようにしている該二次分離の手段として所謂デカ
ンタ型等の遠心分離装置を用いたりすることもあ
るが、該種装置による方式では装置の構造が複雑
であり、又、スラツジの回収率がかんばしくない
という欠点がある。 For this reason, for example, a gravity settling tank such as a sedimentation layer is provided to perform secondary separation using the primary separated slurry, and a centrifugal separator such as a so-called decanter type is used as a means for secondary separation. However, systems using this kind of equipment have the disadvantage that the structure of the equipment is complicated and the sludge recovery rate is low.
これに対し、適宜濾布を介してスラリーを供給
し、これに加圧力を印加して濾過液を脱液分離し
てケーキを分離する方法がある。 On the other hand, there is a method in which a slurry is appropriately supplied through a filter cloth, and a pressure is applied to the slurry to remove and separate the filtrate to separate a cake.
例えば、フイルタプレス方式等もあるが、装置
が大がかりとなる上に大動力を要し更に極めてシ
ールを厳密にしなければならないという難点があ
り、そのシール管理や制御が極めて複雑で煩瑣で
あるという難点があつた。 For example, there is a filter press method, but it has the disadvantages that the equipment is large-scale, requires a large amount of power, and requires extremely strict sealing, and the seal management and control are extremely complicated and cumbersome. It was hot.
これに対し、上記構造の簡単さと操作の容易性
を加えて低コストでスラリー分離出来る方式とし
て所謂ペーパーフイルタ方式があり、フイルタ上
にスラリーを送給載置し、その後圧縮空気を送給
して該濾布を介して濾過液分を脱液分離して濾布
上にケーキだけを残留させ、該ケーキを後工程で
スクレーパ等により濾布から剥離除去するように
して簡便な手段ながら確実にスラリー分離できる
方式が案出採用されて、例えば、塗装工程の前処
理のボンデ粕スラリー処理等に用いられている。 On the other hand, there is a so-called paper filter method that can separate slurry at low cost by adding the above-mentioned simple structure and ease of operation, in which slurry is fed and placed on a filter, and then compressed air is fed. The filtrate is deliquid and separated through the filter cloth, leaving only a cake on the filter cloth, and the cake is peeled off from the filter cloth using a scraper or the like in a subsequent process, thereby producing a slurry reliably with a simple means. A method that allows separation has been devised and adopted, and is used, for example, in the treatment of bonding residue slurry as a pretreatment for the painting process.
而して、該加圧式ペーパーフイルタ方式を用い
た該ボンデ粕スラリー処理では濾布上にスラリー
を２Kg／cm2程度で圧送し、圧搾脱液を行うように
しているために初期数秒間は供給されたスラリー
が濾布をほとんど通過してしまい、濾布上にある
程度のスラツジ状のボンデ層が形成されるまでに
数秒かかり、その後に２Kg／cm2程度の圧縮空気を
圧入してスラリーを通気させて脱液分離するよう
にしていたためにスラツジ回収率は極めて悪く、
ケーキの含水率は60〜70％程度が限界である不利
点があつた。 Therefore, in the Bonde lees slurry treatment using the pressurized paper filter method, the slurry is pumped onto the filter cloth at a rate of about 2 kg/cm 2 and the slurry is squeezed out, so the supply is limited for the initial few seconds. It takes several seconds for most of the slurry to pass through the filter cloth and a sludge-like bond layer is formed on the filter cloth, after which compressed air of about 2 kg/cm 2 is injected to aerate the slurry. The sludge recovery rate was extremely poor because the sludge was removed and separated.
The disadvantage was that the moisture content of the cake was limited to about 60 to 70%.
特に、上記初期漏出は初期のスラリー送給圧が
高いほど大きく、したがつて、含水率が高くな
り、結果的にスラツジ回収率が低下するという不
具合があつた。 In particular, the initial leakage increases as the initial slurry feed pressure increases, resulting in a higher moisture content and a resulting lower sludge recovery rate.
〈発明の目的〉
この発明の目的は上述従来技術に基づくスラリ
ー分離技術のうち低コストで簡単な装置で、しか
も、該スラツジ回収率が得られやすい加圧ペーパ
ーフイルタ方式の良さを生かしながら、そのスラ
ツジ初期漏出をほとんどないようにすることが出
来るようにし、この分離過程における脱液分離を
高くし、結果的にケーキの含水率を50％以下等著
しく低くさせることが出来るようにしてスラツジ
回収率を90％以上に出来るようにして各種製造産
業等における廃液処理利用分野に益する優れたス
ラリー分離方法を提供せんとするものである。<Objective of the Invention> The object of the present invention is to provide a low-cost and simple apparatus among the slurry separation techniques based on the prior art described above, while taking advantage of the advantages of the pressurized paper filter method, which can easily obtain a sludge recovery rate. The initial leakage of sludge can be minimized, and the deliquid separation in this separation process can be increased, resulting in a significantly lower moisture content of the cake, such as 50% or less, thereby increasing the sludge recovery rate. The purpose of the present invention is to provide an excellent slurry separation method that can increase the amount of slurry to 90% or more and is useful in the field of waste liquid treatment in various manufacturing industries.
〈発明の構成〉
上述目的に沿い先述特許請求の範囲を要旨とす
るこの発明の構成は、前述問題点を解決するため
にスラリー分離装置のハウジングを成す上蓋と下
蓋を相対的に開いて濾布を挿通セツトし、該上蓋
と下蓋を近接させてハウジングをシールし、そこ
でスラリー送給側のバルブを開き、該スラリーを
濾布に対する初期漏出が生じない程度の低圧にて
可及的に高濃度で送給して載置し、送給バルブを
閉じ、次いで、他の送給バルブを開いて圧縮空気
を４〜５Kg／cm2程度の圧力で該ハウジング内に送
給してスラリーに加圧印加し、該濾布上に速やか
にスラツジ層を形成して脱液分離し、その濾過液
はハウジングの濾布を通り、その下蓋から除去さ
れ濾布上の残留スラツジはその含水率を50％以下
に低減され、上蓋と下蓋を相対的に開いてケーキ
を載置した濾布を移動させて該濾布からケーキを
剥離除去するようにした技術的手段を講じたもの
である。<Structure of the Invention> In accordance with the above-mentioned object, the structure of the present invention, which is summarized in the above-mentioned claims, is to solve the above-mentioned problems by relatively opening the upper cover and the lower cover forming the housing of the slurry separator to filter the slurry. Insert the cloth and seal the housing by bringing the upper and lower lids close to each other, then open the valve on the slurry feed side and pump the slurry at as low a pressure as possible to prevent initial leakage to the filter cloth. A high concentration of air is supplied and placed on the housing, the supply valve is closed, and then another supply valve is opened to supply compressed air into the housing at a pressure of about 4 to 5 kg/cm 2 to form a slurry. Pressure is applied to quickly form a sludge layer on the filter cloth to remove liquid, and the filtrate passes through the filter cloth in the housing and is removed from the lower lid, and the remaining sludge on the filter cloth has a moisture content. This is reduced to 50% or less, and a technical measure is taken to remove the cake from the filter cloth by opening the upper and lower lids relatively and moving the filter cloth on which the cake is placed. .
〈実施例−構成〉
次に、この発明の１実施例を図面に従つて説明
すれば以下の通りである。<Embodiment - Configuration> Next, one embodiment of the present invention will be described below with reference to the drawings.
図示態様は自動車のパネルの塗装前に油面剥離
等に用いたボンデ液浸漬によるパネルへのボンデ
液除去廃液のスラリー分離の態様であり、概略説
明図に於て、１はこの発明のスラリー分離方法に
直接使用する所謂加圧式ペーパーフイルタ装置で
あり、そのハウジング２を成す上蓋３は図示しな
いフレームを介してベース４に固定され、又、該
ベース４に油圧シリンダ５を介して上記上蓋３に
対して所定距離上昇下降する下蓋６が設けられて
おり、該下蓋６の上面には濾過網７が設けられ、
その下部には濾過液の配管８が設けられてその下
端は廃液ピツト９に臨まされるようにされてい
る。 The illustrated embodiment is an embodiment of slurry separation of the bonder solution removed waste liquid on the panel by immersion in the bonder solution used for oil surface removal etc. before painting of automobile panels. In the schematic explanatory diagram, 1 is the slurry separation of the present invention This is a so-called pressurized paper filter device that is directly used in the method, and the upper lid 3 forming the housing 2 is fixed to a base 4 via a frame (not shown), and the upper lid 3 is connected to the base 4 via a hydraulic cylinder 5. On the other hand, a lower lid 6 is provided which can be raised and lowered by a predetermined distance, and a filtering net 7 is provided on the upper surface of the lower lid 6.
A filtrate pipe 8 is provided at its lower part, and its lower end faces a waste liquid pit 9.
而して、上記上蓋３の上面に接続された供給管
１０はその上部で圧力計１１を有すると共に左右
に分岐管１２，１３を有しており、一方側の分岐
管１２はボールバルブ１４を有して図示しないボ
ンデ粕スラリー供給ポンプに接続されるスラリー
管１５に接続されており、一方、他方の分岐管１
３はボールバルブ１６、及び、逆止弁１７を介し
て図示しない圧搾空気源に接続されている。 The supply pipe 10 connected to the upper surface of the upper lid 3 has a pressure gauge 11 at its upper part and branch pipes 12 and 13 on the left and right sides, and the branch pipe 12 on one side has a ball valve 14. It is connected to a slurry pipe 15 that is connected to a bonded lees slurry supply pump (not shown), and the other branch pipe 1
3 is connected to a compressed air source (not shown) via a ball valve 16 and a check valve 17.
又、上記上蓋３と下蓋６の間には該下蓋６の上
面の濾過網７の上面に沿つて通気性も良く耐酸性
が良いケーキ剥離性の良好なテトロン製の濾布１
８がローラ１９，２０にを介し図示はしていない
が、エンドレスタイプで張設されており、外側の
ローラ１９にはスクレーパ２１が添設されてその
下側にはスラツジバンカー２２が設けられてい
る。 Further, between the upper lid 3 and the lower lid 6, a filter cloth 1 made of Tetron, which has good air permeability, acid resistance, and cake removability, is installed along the upper surface of the filter net 7 on the upper surface of the lower lid 6.
8 is stretched across rollers 19 and 20 (not shown) in an endless type, and a scraper 21 is attached to the outer roller 19, and a sludge bunker 22 is provided below it. ing.
上記ペーパーフイルタ装置１を用いてボンデ粕
のスラリーを分離するに際しては先ず、一方の圧
縮空気送給側のボールバルブ１６を閉じ、スラリ
ー送給側のボールバルブ１４を開き、予め１段、
或いは、２段等の重力沈降槽の沈澱槽等を通過さ
せた、例えば、濃度20％等の高濃度のボンデ粕ス
ラリーを濾布１８に対して初期漏出が生じない程
度の低圧、すなわち、ほとんど加圧せず、単に送
給に要する圧力程度の圧力で送給し、濾布１８上
に送給して載置する。 When separating the slurry of bonded lees using the paper filter device 1, first, one ball valve 16 on the compressed air supply side is closed, the ball valve 14 on the slurry supply side is opened, and one stage is prepared in advance.
Alternatively, the Bonde lees slurry with a high concentration, such as 20%, which has passed through a settling tank of a two-stage gravity settling tank, etc., may be applied to the filter cloth 18 at a low pressure that does not cause initial leakage, that is, at almost no pressure. It is not pressurized, but is simply fed at a pressure that is approximately the same as the pressure required for feeding, and is fed and placed on the filter cloth 18.
尚、この間の送給圧は圧力計１１により検出さ
れ、濾布１８においてスラリーが初期露出を生ず
るような圧力に不測にしてなつた場合には送給を
止めるか、送給圧を設定圧に下げるようにする。 The feed pressure during this period is detected by the pressure gauge 11, and if the pressure unexpectedly reaches a level that causes initial exposure of the slurry in the filter cloth 18, either stop the feed or adjust the feed pressure to the set pressure. Try to lower it.
このようにして、タイマー等により設定量のボ
ンデ粕スラリーが濾布１８上に載置スラリー２３
として形成され、上述の如く低圧で送給されてい
るために初期漏出は無く、又、該濾布１８も前記
の如く通気性が小さいために該初期漏出は生じな
い。 In this way, a set amount of bonded lees slurry is placed on the filter cloth 18 using a timer or the like and placed on the slurry 23.
Since the filter cloth 18 is formed as a filter and is fed under low pressure as described above, there is no initial leakage, and since the filter cloth 18 also has low air permeability as described above, no initial leakage occurs.
このようにして、一定時間経過後該濾布１８上
その直上に速やかにボンデ層のスラツジ層が形成
された後はボールバルブ１４を閉じ、他方の圧縮
空気送給ボールバルブ１６を開くことにより４〜
５Kg／cm2の圧縮空気が送給されてハウジング内に
送圧印加され、濾布１８上のボンデ粕スラリー２
３を通過し、圧搾作用を印加して脱液分離し、そ
の濾過液は排気管８を介して廃液ピツト９に溜
る。 In this way, after the sludge layer of the bonder layer is quickly formed on the filter cloth 18 immediately after a certain period of time has elapsed, the ball valve 14 is closed and the other compressed air supply ball valve 16 is opened. ~
Compressed air of 5 kg/cm 2 is supplied and applied to the inside of the housing, and the bonded lees slurry 2 on the filter cloth 18 is
3, the liquid is removed and separated by applying a squeezing action, and the filtrate is collected in a waste liquid pit 9 via an exhaust pipe 8.
而して、この間の圧縮空気圧送時間は予め決め
られており、その間の圧力については圧力計１１
で監視されて一定にされ、又、タイマー動作によ
り濾布１８上のスラリー２３が脱液分離されてそ
の上面にボンデ粕のスラツジが形成されるが該ボ
ンデ粕がケーキ状になつて亀裂発生が生ずる以上
の時間を予め設定しておきそのタイマー作用によ
り設定時間経過後は該ボールバルブ１６を締めて
圧縮空気の送給を停止し、次いで図示しない制御
作用により油圧シリンダ５を縮退させてハウジン
グ２の上蓋３に対して油圧シリンダ５を下降させ
下蓋６と一体的に下降する濾布１８上のケーキが
上蓋３に干渉しない姿勢になつたところで図示し
ないモータを介してローラ１９，２０を回転させ
てケーキを移動し、スクレーパ２１によつてスラ
ツジバンカー２２上にケーキ２４を落下させる。 The compressed air feeding time during this period is predetermined, and the pressure during this period is measured by the pressure gauge 11.
The slurry 23 on the filter cloth 18 is deliquified and separated by a timer operation, and a sludge of bonder lees is formed on the upper surface of the slurry 23, but the bonder lees becomes cake-like and cracks occur. After the set time has elapsed, the ball valve 16 is closed to stop the supply of compressed air, and then the hydraulic cylinder 5 is retracted by a control action (not shown) to close the housing 2. The hydraulic cylinder 5 is lowered with respect to the upper lid 3, and when the cake on the filter cloth 18, which is lowered together with the lower lid 6, is in a position where it does not interfere with the upper lid 3, the rollers 19 and 20 are rotated via a motor (not shown). The cake is moved and the cake 24 is dropped onto the sludge bunker 22 by the scraper 21.
而して、上記濾布１８は単に通気性が小さいば
かりでなく、耐酸性であるために再度使用するよ
うにしてローラ１９，２０を回動させて次の濾布
面を下蓋６上に来させて油圧シリンダ５を上昇さ
せ、再びハウジングをリセツトさせて上述の分離
プロセスを再開するようにする。 The filter cloth 18 not only has low air permeability but also is acid resistant, so that it can be used again by rotating the rollers 19 and 20 and placing the next filter cloth surface on the lower lid 6. Then, the hydraulic cylinder 5 is raised to reset the housing again and restart the separation process described above.
尚、先述した如く、初期供給のスラリーの濃度
と量の二つの初期条件によりスラツジ回収率の程
度は多少変動するものであり、例えば、濃度20％
のスラリーの場合において最適条件は濾布１８の
単位面積当りの乾燥固形量を1.5ｇ／cm2以上に取
ることであり、その場合はケーキの厚さは25mm以
上となつてケーキの含水率は47％、回収率は99.8
％という高水準の脱水能率が得られる。 As mentioned above, the degree of sludge recovery rate varies somewhat depending on the two initial conditions of the concentration and amount of the initially supplied slurry. For example, when the concentration is 20%,
In the case of a slurry, the optimum condition is to set the dry solid content per unit area of the filter cloth 18 to 1.5 g/cm 2 or more, in which case the thickness of the cake will be 25 mm or more and the moisture content of the cake will be 47%, recovery rate 99.8
% dehydration efficiency can be obtained.
これに対して実験によれば、従来態様において
はケーキの含水率は60〜70％が限度であり、初期
漏出によるスラツジ回収率回収率の低下という問
題は解消されることは出来ている。 On the other hand, experiments have shown that in the conventional method, the moisture content of the cake is limited to 60 to 70%, and the problem of reduced sludge recovery rate due to initial leakage has been solved.
尚、この発明の実施態様は上述実施例に限るも
のでないことは勿論であり、種々の態様が採用可
能である。 It goes without saying that the embodiments of the present invention are not limited to the above-mentioned embodiments, and various embodiments can be adopted.
又、対象はボンデ粕スラリー以外の廃液に適用
可能であることも勿論である。 It goes without saying that the present invention can also be applied to waste liquids other than Bonde lees slurry.
〈発明の効果〉
以上この発明によれば、基本的に、加圧式ペー
パーフイルタを用いたスラリー分離方法におい
て、従来のケーキ含水率が60〜70％程度が限界で
あつたのに対し、この発明においては47％にも下
げることが出来、そしてスラツジ回収率は99.8％
という序効率も得られることが出来る優れた効果
が奏される。<Effects of the Invention> According to the present invention, basically, in a slurry separation method using a pressurized paper filter, the moisture content of the cake was limited to about 60 to 70% in the conventional method. can be reduced to 47%, and the sludge recovery rate is 99.8%.
This is an excellent effect that can also provide the ordinal efficiency.
したがつて、加圧式ペーパーフイルタ方式によ
るスラリー分離の簡便、且つ、低コストの分離方
法でありながらそのスラツジ回収率は極めて高く
することが出来る優れた効果が奏される。 Therefore, the pressurized paper filter method is a simple and low-cost method of separating slurry, and yet has the excellent effect of making the sludge recovery rate extremely high.
而して、濾布に対するスラリーの供給を低圧で
初期漏出が生じない程度にすることにより該スラ
リーの供給における初期経過時間中にスラリーが
濾布中から漏出せず、最初からスラツジ層が形成
されるためにケーキとなるスラツジが濾布上で形
成されていくという効果が奏される。 Therefore, by supplying the slurry to the filter cloth at a low pressure to a level that does not cause initial leakage, the slurry will not leak out from the filter cloth during the initial elapsed time during the supply of the slurry, and a sludge layer will be formed from the beginning. The effect is that a sludge that becomes a cake is formed on the filter cloth.
又、濾布上にスラツジ層を介して順にスラリー
が載置されることによりその後で供給する圧縮空
気の圧力を４〜５Kg／cm2とすることにより通気性
の低いテトロン製等の濾布に対しても確実な脱液
分離が出来、したがつて、この点からも濾布上の
ケーに亀裂発生が生ずるまで脱液分離が行われる
ことによりスラツジ回収率が高いケーキが得られ
る効果が奏される。 In addition, by sequentially placing the slurry on the filter cloth through the sludge layer, the pressure of the compressed air supplied afterwards is set at 4 to 5 kg/cm 2 , which makes it easier to use on filter cloths such as those made of Tetron, which have low air permeability. Therefore, from this point of view as well, it is effective to obtain a cake with a high sludge recovery rate by performing deliquid separation until cracks appear in the cake on the filter cloth. be done.
図面はこの発明の１実施例の説明図でペーパー
フイルタ方式による作用説明断面図である。
２……ハウジング、１８……濾布、２３……ス
ラリー、２４……ケーキ。
The drawing is an explanatory view of one embodiment of the present invention, and is a sectional view illustrating the operation of a paper filter system. 2...Housing, 18...Filter cloth, 23...Slurry, 24...Cake.
Claims (1)
ーを送給しその後該濾布上のスラリーに対して圧
縮空気を送圧印加させ濾布上のケーキを剥離除去
するようにしたスラリー分離方法において、上記
スラリーを濾布に対する初期漏出が生じない低圧
で該濾布上に送給載置し、その後該濾布上にスラ
ツジ層が形成された状態で上記圧縮空気を４〜５
Kg／cm2程度で圧送して脱液分離上記濾布上にケー
キを残留させるようにしたことを特徴とするスラ
リー分離方法。1. A slurry separation method in which slurry is fed onto a filter cloth inserted into a separation housing, and then compressed air is applied to the slurry on the filter cloth to peel off and remove the cake on the filter cloth, The slurry is fed and placed on the filter cloth at a low pressure that does not cause initial leakage to the filter cloth, and then, with a sludge layer formed on the filter cloth, the compressed air is blown for 4 to 5 minutes.
A slurry separation method characterized in that a cake is left on the filter cloth described above for deliquid separation by pressure feeding at a rate of approximately Kg/cm 2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58120219A JPS6012109A (en) | 1983-07-04 | 1983-07-04 | Slurry separating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58120219A JPS6012109A (en) | 1983-07-04 | 1983-07-04 | Slurry separating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6012109A JPS6012109A (en) | 1985-01-22 |
| JPS6355968B2 true JPS6355968B2 (en) | 1988-11-07 |
Family
ID=14780828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58120219A Granted JPS6012109A (en) | 1983-07-04 | 1983-07-04 | Slurry separating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6012109A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63119815A (en) * | 1987-10-30 | 1988-05-24 | Nisshin Eng:Kk | Filter press device |
| JPH0761676B2 (en) * | 1988-01-29 | 1995-07-05 | キヨーラク株式会社 | Hollow body manufacturing method |
| JPH0659454B2 (en) * | 1988-01-29 | 1994-08-10 | キョーラク株式会社 | Hollow body manufacturing method |
| US5961827A (en) * | 1996-08-28 | 1999-10-05 | Baehr; Albert | Apparatus for dewatering of sludge and similar substances |
| KR200450427Y1 (en) * | 2008-09-08 | 2010-10-01 | 한규남 | A Liquid Sludge Cake-Making Apparatus for A Pressure Pre-Coat Filter System |
-
1983
- 1983-07-04 JP JP58120219A patent/JPS6012109A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6012109A (en) | 1985-01-22 |
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