EP0282906A2 - Séparateur de graisses - Google Patents

Séparateur de graisses Download PDF

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Publication number
EP0282906A2
EP0282906A2 EP88103782A EP88103782A EP0282906A2 EP 0282906 A2 EP0282906 A2 EP 0282906A2 EP 88103782 A EP88103782 A EP 88103782A EP 88103782 A EP88103782 A EP 88103782A EP 0282906 A2 EP0282906 A2 EP 0282906A2
Authority
EP
European Patent Office
Prior art keywords
chamber
lines
grease separator
grease
pump
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.)
Granted
Application number
EP88103782A
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German (de)
English (en)
Other versions
EP0282906A3 (en
EP0282906B1 (fr
Inventor
Bernhard Kessel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT88103782T priority Critical patent/ATE57975T1/de
Publication of EP0282906A2 publication Critical patent/EP0282906A2/fr
Publication of EP0282906A3 publication Critical patent/EP0282906A3/de
Application granted granted Critical
Publication of EP0282906B1 publication Critical patent/EP0282906B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • E03F5/16—Devices for separating oil, water or grease from sewage in drains leading to the main sewer

Definitions

  • the invention relates to a grease separator specified in the preamble of claim 1.
  • a 4/4-way control valve is provided in the pressure line of the pump, to which the three lines to the sludge trap chamber, to the separating chamber and to the emptying outlet are connected.
  • this directional control valve is an acute disruptive factor because its function is easily impaired by dirt, objects or the like. Neither flow diversions nor dead spaces or narrow passages can be avoided in the directional control valve, as a result of which contaminants become lodged that cannot be removed by the pump pressure, but rather require the three lines to be disassembled or at least unscrewed for cleaning. The flow constrictions in particular impair a desired large throughput. In addition, such control valves are expensive and difficult to maintain.
  • the invention has for its object to provide a grease separator of the type mentioned, which is characterized by a simple structure and great effect in its work and should be immune to interference.
  • a directional control valve or slide valve is no longer needed because the connection of the pressure pipe to the line to be acted upon is made solely by moving the mouth of the pressure pipe and aligning it with the mouth of the line required in each case.
  • the pollution in the wastewater does not interfere with the movement of the mouth.
  • the mouths of the other two lines that are not required are always free. Should there still be a malfunction, cleaning can be carried out easily after removing the container lid, without the need for further partial disassembly.
  • the carrier part on which the lines are mounted is simple and inexpensive to manufacture and can be easily accommodated inside the grease separator. This also gives the grease separator a compact design with as few external components as possible.
  • the embodiment of claim 2 is expedient, because the externally accessible adjusting device for a desirably simple handling of the fat separator, i.a. when it is emptied.
  • the pipe With the rotation of the lever provided, the pipe is also axially rotated and the pump, which is flanged to the pipe, also rotates in this direction and the pressure pipe is finally realigned. It is therefore possible to connect the pressure pipe optionally with one of the three lines.
  • the flat alignment of the three orifices arranged next to one another is particularly advantageous because the orifice of the pressure pipe is placed on the required orifice from above and pressed by the weight of the pump of the pipe and, if necessary, the drive, so that even at high working pressure of the pump the leakage losses remain low.
  • a vertical embodiment with a cylinder jacket as a mouth receptacle would also be conceivable. The pressure line is pressed radially, so to speak, against the vertical mouth of one of the three lines.
  • a structurally particularly simple and reliable embodiment is the starting point Claim 4 out.
  • the form-fitting links secure three rotational positions of the tube, in which the pressure tube is connected to one of the lines. It is advantageous to fix these rotational positions visibly on the outside, because the inside of the grease separator is closed to the outside. Due to the fact that the pipe sits lower in the three predetermined rotational positions than in between, the weight of the pump and the pipe firmly presses the mouth of the pressure pipe onto the respectively selected mouth, while lifting and relieving it when moving from one mouth to the other. Deposits are wiped off and unnecessarily high wear between the mouths is avoided.
  • the functional reliability is increased in the embodiment of claim 5, because the mouth of the pressure tube can be inserted into the seat with correct alignment. Inappropriate wear is avoided even with frequent adjustment.
  • the sealing effect that can be achieved is by far sufficient for this purpose. If necessary. however, an additional seal could also be provided in each seat or at the mouth of the pressure line.
  • the carrier part can be easily fixed on the partition wall and forms a stable mounting for the three lines and, in a simple manner, also the guide surface for the mouth of the pressure pipe to be moved.
  • the mouths of the three lines should be above the level in the grease separator.
  • At least one connecting strut between the pipe and the mouthpiece is provided for clean guidance for the pressure pipe and thus the torque applied when the pressure pipe is moved is correctly transmitted to the mouth.
  • a particularly important embodiment of a fat separator according to the invention which is essential to the invention even without the features of the preceding embodiments, and in which a device which can be actuated to empty the fat separator to tear open a separated fat layer is arranged in the separating chamber is based on claim 7.
  • the sub-task is solved, especially the tearing of the fat layer to be carried out quickly and efficiently, without having to make excessive technical effort.
  • the tearing effect of the wastewater pressed from the tearing line into the separation chamber is not sufficient to reliably tear open the fat layer.
  • An externally driven agitator is therefore provided, which projects into the separation chamber and is actuated to be torn open. This means a considerable additional effort.
  • a rapid and effective tearing of the fat layer is achieved in a simple manner by the spray nozzles, of which several are arranged in the fat layer and therefore simultaneously cause tearing over the entire fat layer extension.
  • a motion drive for the spray nozzles is not needed because they begin to tear open the fat layer in several places in the separation chamber.
  • the pressure provided by the pump and the waste water pumped out of the sludge trap chamber are used for this.
  • the features of the embodiment according to claim 8 are also important.
  • the supply line remains above the fat layer so that it cannot get caught there when it solidifies. Only the spray nozzles protrude into the fat layer and, because they work just below the surface of the fat layer, produce a good and quick effect.
  • the jets emerging from the spray nozzles break the solidified fat layer into many small lumps that can be pumped out quickly when the separating chamber is subsequently emptied and without rinsing or stirring.
  • the upper edge of the partition, together with the outlet, defines the level of the surface of the solidified fat layer.
  • the features of claim 9 are also expedient since they relate to the stitch individual spray nozzles that work essentially horizontally, so that the fat layer is torn into as many lumps of the same size as possible. This is achieved by the adjustable nozzles, but above all reaching into the fat layer, so that the fat layer is broken open from the inside.
  • the wide or flat jet nozzles according to claim 10 have a particularly strong tearing and mixing effect in the fat layer.
  • the flap lock is normally closed so that no sludge can migrate from the sludge trap chamber to the separation chamber and no fat components can return to the sludge trap chamber. Only when emptying is the flap closure opened by the flow pressure, so that the lumps produced by the tearing of the fat layer with the waste water can be quickly pumped out of the sump of the sludge trap chamber.
  • a further, particularly expedient embodiment which is important according to the invention can be found in claim 13.
  • the features characterizing this embodiment are also important for grease separators of a type other than the above-mentioned, because the flow calming zone promotes rapid separation of the grease constituents and other contaminations of the waste water, so that the quality of the waste water flowing into the sewage system is relatively good.
  • a sludge trap chamber A is arranged on the inlet side, to which a separating chamber B connects, behind which there is then an outlet chamber C, from the drained wastewater is drained back into the sewer system.
  • the container 2 is closed at the top by a lid 3.
  • the polluted waste water runs through an inlet pipe 4 with a subsequent baffle 5 to the sludge trap chamber A.
  • a pump 6 is arranged in the bottom sump of the sludge trap chamber A and is connected to an external drive 8 via a vertical pipe 7.
  • the tube 7 is held together with the pump 6 in a storage area 9 so that it can rotate about a vertical axis 37.
  • a pressure pipe 12 connected to the pressure side of the pump 6 is designed as a riser pipe, to which a 180 ° knee 13 is attached at the top, so that the mouth of the pipe labeled 14 Pressure tube 12 points down.
  • the upper part of the pressure pipe 12 is connected in a rotationally fixed manner to the pipe 7 via a strut 15.
  • the sludge trap chamber A is through a from the inclined bottom 23rd of the container 2 ascending partition 16 separated from the separation chamber B.
  • the upper edge of the partition wall 16, together with the inlet connector 4 and an outlet connector 21, determines the liquid level in the container 2.
  • a transverse wall 17 which can be flowed through is attached in the separation chamber B, the upper edge of which is higher than the upper edge of the partition wall 16.
  • a flow calming zone is formed, in which the fat can settle out of the waste water and forms a floating fat layer 22.
  • a vent 18 is attached.
  • a passage 20 is provided near the bottom 23 in the partition 19 for the purified waste water flowing from the separation chamber B into the outlet chamber C.
  • An angular support part 24, expediently detachable, is fixed near the upper edge of the partition 16, in which (see FIG. 2) three orifices 26, 28 and 30 lie next to one another at approximately the same height.
  • the mouth 26 belongs to an emptying line 25 which is led out of the container.
  • the mouth 28 belongs to a short stub 27 which runs from the carrier part 24 down into the sludge trap chamber A and ends approximately at half its height.
  • the mouth 30 finally belongs to a tear line 29 which extends over the transverse wall 17 into the separation chamber B and there forms a supply line 31 with a supply line branch 31a for spray nozzles 33 which are rotatably mounted on short downward spur lines 32 about vertical axes.
  • the supply lines 31, 31a are located approximately at the height of the upper edge of the partition 16 and thus above the surface level of the fat layer 22.
  • the spray nozzles 33 are located just below the level of the top edge of the partition 17 and thus inside the fat layer 22.
  • the spray nozzles 33 are set in their rotational position so that practically the entire fat layer can be acted upon with spray jets.
  • the spray nozzles 33 are designed as flat jet nozzles with an approximately horizontal jet direction.
  • the supply lines 31 and 31a are held by simple brackets 35 on the longitudinal walls of the container 2, e.g. with locking brackets.
  • a mechanical discharge is located in the separation chamber B near the bottom 23 device 42, for example arranged in the manner of a conveyor belt or a scraper conveyor with the pump 6 running transport direction.
  • a flap closure 47 is provided near the bottom, which assumes its closed position when the grease separator is working and only opens when emptied by the flow pressure and creates a flow connection from the separation chamber B to the sludge trap chamber A and thus to the suction side of the pump 6.
  • Fig. 2 From Fig. 2 it can be seen that the mouths 26, 28 and 30 are arranged along an arc K, the center of which is the axis 37 of the tube 7.
  • the carrier part 24 extends across the sludge trap chamber A and is arranged so high that the mouths are above the level of the waste water in the sludge trap chamber A.
  • each mouth (only the mouth 28 is shown) is formed as a funnel-shaped seat 41 in a thickening 40 of the carrier part 24, the top of which is a guide surface 38 common to all mouths for the mouth 14 of the pressure pipe 13 forms.
  • Each line e.g. the line 27 is suspended in the seat 41.
  • the pressure tube 13 is provided with a thickening 39, which advantageously has a conical shape, so that a good sealing seat is obtained as soon as the mouth 14 has entered the seat 41.
  • the mouth 14 is displaced by means of the tube 7 during its rotational movement along the guide surface 38.
  • dashed lines it is indicated that the cone angle of the seat 41 is smaller than the cone angle of the thickening 39, so that the mouth 14 cannot wedge in the seat 41.
  • Fig. 4 it can be seen that in the adjusting device 10 for the tube 7 three notches 44a, 44b and 44c spaced apart in the circumferential direction are provided, into which a pin 45 projecting radially in the tube 7 can snap.
  • the drive shaft to the pump is designated 43.
  • the adjusting device 10 indicated in FIG. 1 raises and rotates the tube 7 until the pin 45 enters one of the three notches which define three predetermined rotational positions for the tube 7 and thus for the mouth 14, in which the mouth 14 is aligned with one of the mouths 26, 28, 30 and is pressed against or into this mouth by the weight of the tube 7 with the pump 6.
  • An actuator for the rotary movement of the tube could also be provided, which is activated by actuating a switch and then rotates the tube from one rotary position to the other and, if necessary, raises and lowers it again.
  • the grease separator works as follows: The polluted waste water flows into the sludge trap chamber A via the inlet connection 4 until it has reached the level of the upper edge of the partition 16. Solid and heavier constituents than the waste water in the sump of the sludge trap chamber A are already settling. The wastewater mixed with grease then fills the separation chamber B, flowing through it under the transverse wall 17 and abutting the partition 19. The fat constituents of the waste water rise upward in the flow-reduced zone and form the thick layer of fat 22 between the transverse wall 17 and the partition wall 19. The cleaned waste water flows through the passage 20 into the discharge chamber C and through the discharge nozzle 21 into the further channel system.
  • sludge is present in the sludge trap chamber A and a solidified fat layer 22 is present in the separation chamber B. Then the grease separator 1 must be emptied.
  • wastewater is no longer supplied, but first the pipe 7 is rotated until the mouth 14 of the pressure pipe 12 is connected to the mouth 30 of the tear line 31. Then the pump 6 is switched on. The wastewater sucked out of the sludge trap chamber A is through the Spray nozzles 33 squeezed and breaks the fat layer into small pieces, at the same time these pieces are set in a circulating movement. The waste water circulates permanently in the separating chamber B. Then the pump 6 is switched off and the pipe 7 is rotated so far that the mouth 14 is aligned with the mouth 26 of the line 25 and is tightly connected to it.
  • the pump 6 is switched on again and sucks the sludge from the sump of the sludge trap chamber A and, via the opening flap lock 47, also the separating chamber B, whereby the lumps of the torn fat layer 22 are entrained. If this is deemed necessary, the mouth 14 can be previously aligned with the mouth 28 and then the pump can be switched on again, so that a strong circulation is generated in the sludge trap chamber A, which promotes the subsequent suction.
  • the discharge device 42 favors the emptying of the separation chamber B.
  • the grease separator is then ready for operation again. Contaminated wastewater can be returned.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Removal Of Floating Material (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Eye Examination Apparatus (AREA)
  • Sealing Devices (AREA)
  • Lubricants (AREA)
EP88103782A 1987-03-17 1988-03-10 Séparateur de graisses Expired - Lifetime EP0282906B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88103782T ATE57975T1 (de) 1987-03-17 1988-03-10 Fettabscheider.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3708557 1987-03-17
DE19873708557 DE3708557A1 (de) 1987-03-17 1987-03-17 Fettabscheider

Publications (3)

Publication Number Publication Date
EP0282906A2 true EP0282906A2 (fr) 1988-09-21
EP0282906A3 EP0282906A3 (en) 1988-12-07
EP0282906B1 EP0282906B1 (fr) 1990-10-31

Family

ID=6323229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103782A Expired - Lifetime EP0282906B1 (fr) 1987-03-17 1988-03-10 Séparateur de graisses

Country Status (3)

Country Link
EP (1) EP0282906B1 (fr)
AT (1) ATE57975T1 (fr)
DE (2) DE3708557A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999034894A1 (fr) * 1997-12-30 1999-07-15 Lapointe Technologik Inc. Appareil pour separer un liquide de faible densite et un liquide de haute densite
US6261446B1 (en) 1999-04-30 2001-07-17 Cmy Associates, Llc Preloader system for separating sewage materials
GB2374352A (en) * 2001-03-27 2002-10-16 Rodicon Ltd Grease trap
WO2013083330A1 (fr) * 2011-12-08 2013-06-13 James O'neill Appareil de traitement des eaux usées
CN110014018A (zh) * 2019-03-28 2019-07-16 北京云水浩瑞环境科技有限公司 餐厨垃圾预处理的系统

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3828326A1 (de) * 1988-08-20 1990-03-08 Bernhard Kessel Fettabscheider
DE3840971C2 (de) * 1988-12-05 1994-01-20 Passavant Werke Verfahren und Einrichtung zum Pumpfähigmachen der Schwimmstoffschicht in einem Leichtstoffabscheider mittels horizontal eingeblasenen Fluids
DE4119532C2 (de) * 1990-07-28 1994-10-06 Bernhard Kessel Verfahren zum Entsorgen einer Abscheidevorrichtung sowie Abscheidevorrichtung für verfestigtes Abscheidegut
DE9105725U1 (de) * 1991-05-08 1991-08-29 Basika Entwässerungen GmbH, 5600 Wuppertal Abscheider
DE4121332C2 (de) * 1991-06-28 1994-09-29 Passavant Werke Abscheider zum Abtrennen von Schwimm- und Sinkstoffen aus mit diesen Stoffen verschmutzten Abwässern

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0108717A2 (fr) * 1982-11-05 1984-05-16 Fuchs Maschinenbau Dispositif pour nettoyer des eaux usées
DE3330087A1 (de) * 1983-08-18 1985-03-07 Guss- Und Armaturwerk Kaiserslautern Nachf. Karl Billand Gmbh & Co, 6750 Kaiserslautern Mittels einer wahlweise als ruehr- und foerderorgan arbeitenden pumpe entleerbarer behaelter zur abcheidung von sinkstoffen und schwimmstoffen, insbesondere erhaertenden fetten aus abwasser
DE3412500A1 (de) * 1984-04-03 1985-10-10 Passavant-Werke AG & Co KG, 6209 Aarbergen Abscheider fuer schwimm- und sinkstoffe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447545A (en) * 1966-09-27 1969-06-03 Dura Corp Reclamation of liquids used in vehicle washing
DE2003565B1 (de) * 1970-01-27 1971-06-09 Passavant Werke Verfahren und Vorrichtung zum Entleeren eines Leichtfluessigkeitsabscheiders
DE2555136C3 (de) * 1975-12-08 1978-10-26 Passavant-Werke Michelbacher Huette, 6209 Aarbergen Leichtflüssigkeitsabscheider, insbesondere Fettabscheider
DE3114745C2 (de) * 1981-04-11 1983-07-21 Albrecht Markert GmbH, 7411 Engstingen Einrichtung zum Trennen von nicht mischbaren Flüssigkeiten unterschiedlichen spezifischen Gewichtes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0108717A2 (fr) * 1982-11-05 1984-05-16 Fuchs Maschinenbau Dispositif pour nettoyer des eaux usées
DE3330087A1 (de) * 1983-08-18 1985-03-07 Guss- Und Armaturwerk Kaiserslautern Nachf. Karl Billand Gmbh & Co, 6750 Kaiserslautern Mittels einer wahlweise als ruehr- und foerderorgan arbeitenden pumpe entleerbarer behaelter zur abcheidung von sinkstoffen und schwimmstoffen, insbesondere erhaertenden fetten aus abwasser
DE3412500A1 (de) * 1984-04-03 1985-10-10 Passavant-Werke AG & Co KG, 6209 Aarbergen Abscheider fuer schwimm- und sinkstoffe

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999034894A1 (fr) * 1997-12-30 1999-07-15 Lapointe Technologik Inc. Appareil pour separer un liquide de faible densite et un liquide de haute densite
US6159361A (en) * 1997-12-30 2000-12-12 Lapointe; Bernard Oil-reclaiming bouyant apparatus
US6261446B1 (en) 1999-04-30 2001-07-17 Cmy Associates, Llc Preloader system for separating sewage materials
GB2374352A (en) * 2001-03-27 2002-10-16 Rodicon Ltd Grease trap
GB2374352B (en) * 2001-03-27 2004-07-07 Rodicon Ltd A grease trap
WO2013083330A1 (fr) * 2011-12-08 2013-06-13 James O'neill Appareil de traitement des eaux usées
US9205352B2 (en) 2011-12-08 2015-12-08 James O'Neill Apparatus for treating waste water
CN110014018A (zh) * 2019-03-28 2019-07-16 北京云水浩瑞环境科技有限公司 餐厨垃圾预处理的系统

Also Published As

Publication number Publication date
EP0282906A3 (en) 1988-12-07
EP0282906B1 (fr) 1990-10-31
DE3860903D1 (de) 1990-12-06
ATE57975T1 (de) 1990-11-15
DE3708557A1 (de) 1988-09-29

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