A DEVICE FOR THE SEPARATION OF OIL FROM WATER

Abstract: This invention relates to a device for separation of oil from water containing impurities in industries, waste plants, ships or the like. The device consists of an oil separation tank (I), which is tapering upwards and is provided with an inlet (1) and an outlet (2). In its lower part it is provided with airing means in the form of perforated pipes. In its upper part the tank is provided with steering plates (6). Raw water (3') containing oil (3'') and light particles, is introduced in the inlet (1) of the tank (I), in which oil (3'') and particles are lifted up to the surface by the addition of air bubbles from the airing means (4 and 5). The floating mass is flushed into an oil outlet pipe (7), while cleansed water (8) is led out through the outlet (2). The inlet (1) and the outlet (2) have a level regulator or level indicator.

Description: A device tor tne separation of oil from water Thxs invention relates to a αevice IOΓ tne separation or oil from water containing impurities in xnαustries, waste plants, snips or tne like places. In tήe tecnnique in question tnere are oexore known a number more or less technically complicated and expensive metnods and αevices as tne US-patents 3.&23.t>08, 4.b&4.4!?T ana 5.1t?8.678. In wash racks for cars or industry with mecnanical equipment ana snips ana otner places as e.g. at petrol stations or com¬ munal waste plants wasn water is ixeα witn oil, gravel or tne like. Said water is xnen forwardeα to waste waτer riltration plants wnere it nas a negative effect upon τne cleaning αevice wήicn in many cases knocks out tne function. Tne purpose of tnis invention is to avoiα tne use ox e.g. tne before known expensive Xilter equipments ana additions of che¬ micals. Tne device accorαing to tne invention is cnaracterizeα by wnat is evident from τne patenτ claim encloseα. The invention will now be described with reference to tne drawings enclosed wnere tigure 1 snows tne αevice in a siαe view, figure 2 snows figure 1 in an unαerneatn view and figure 3 snows a cross section of figure 1. Tne αevice accorαing to tne invention consists of an oil sepa¬ ration αevice I wnicn is tapering upwarαs an provided witn an inlet 1 ana an outleτ 2, wnere tne inlet 1 ana τne ouτlet 2 are arranged witn level regulator means or level indicator means tor tήe steering of oil ana water by means of a register means. Tne oil separation device I is suitably arranged tapering up¬ warαs, as tne oil layer tnen becomes deeper ana thus closer, wnicn means tnat a large nuatDer of tne particles accompanies in τne oil ana tne aτtaxnea cleaning eixect removes τne con¬ tends ox waτer to 2-6%. Polluteα water containing sand, gravel, oil or tne like is τreaτeα in a suitable way e.g. in a coarse SUBSTITUTE SHEET ISA/SE separation device not shown so that raw water 3' containing oil 3" and lighter particles can be introduced τnrough the in¬ let 1 of the oil separation device I. Tήe oil separation devi¬ ce I is in its lower part provided with airing means partly in the xorm oi perforated pipes, cloth or membrane as air outlet 4 having tight-fitting noles for forming rug partly an air in¬ let 5 for the treatment ox raw water ' containing oil 3" and lighter particles. The oil separation device I is also provi¬ ded with steering plates 6 wnich can be welded either- longitu¬ dinally or transversally depending on requisite capaciτy. Aτ tne aααition ox air into airing means 4 an 5 oil 3" and ligήter particles are lifted up onto tne raw water 3 1 as a floating mass owing to lower density than tne raw water 3 1 and are kept and rlushed into an σ±l outlet in tne form of a pipe means 7 an are conducted xrom there to a collecting means not shown in the xorm of e.g. a barrel, while cleansed water- 8 is led out through tne outlet 2 or- furthe removal. The lengtn of pump of waters 3' and 8 used is extended by means of the steering plates b and is subjected for air treatment tne wnole way from the inlet 1 to the outlet 2, which gives a more effective separation and nigher capacity. The oil 3" can be emptied via tne pipe means T independently of side. J?or tne cleaning of the oil separaτion device I τnis is in its lower parτ provided witn an outleτ 9 or the drawing ox water; AIL drawing ox waτer is steered by means of level regulator means and level indicator means and closeable or adjustable air-re- gulater means or a register means. Ehroug* tne shaping of the oil separaτion device I the αiameter is reduced ana τne oil- layer increases in τnickness. The air in aαjustable ana regu¬ lating amount keeps tne oil on place wnereas tne separateα wa¬ ter 8 in a snort time Decomes completely crystal-clear. Since raw water nas nign conτenτs wiτh deτergents which mix with oil, tne xloating effect- can be a*fecteα and mix with escaping water. When that is so, one further- step can be performed for this treatment ana measure through tήe connection of an oil separator or a water separator. The invention is oi course not limited to tnis αesign out can evidently be varied within tne scope oi tne invention iαea. SUBSTITUTE SHEET ISA/SE

Claims: C A I 1 A device xor the separaτion ox oil from waτer conτaining impurities in indusτries, wasτe planτs, snips oir τne like places, c n a r a c τ e r i z e α in τhat iτ consisτs ox an oil separaτion device(I ) t wnicn is τaper±ng upwarαs ana pro¬ vided with an inletdJ ana an ou leτ(2) and wnich in iτs lo¬ wer parτ is arrangeα wiτn parτly airing means in τne xorm of perforated pipes, cloτn or memDrane as an air outlet(4) ana an air inleτ(5) parτly an ouτlaτ(9) for τne drawing of water at the cleaning and which in its upper part is arranged with steering plates(6j, which are welded either longitudinally or transversally αepenαing on capacity, whereas raw water(3') containing oil(3") and lighter particles, which parts(3' and 3") can be obτained at tne coarse separation of the impurities is introduced in tne inlet(l) of the oil separation desriceCl), in which oil(3") and lighter parτicles by means o£ the addi¬ tion of. air τo τne τnere arranged airing means{4 and 5) are lixτeα up onτo τne raw water(3') as a floating mass and there kept ana ilushea into an oil outle-t in the rorm of a pipe means(T) ana are conαucteα irom τnere τo a collecτing means in τne form of a oarrel, while cleanseα water(»J is lea ouτ tnrougn τne ouτleτ(2) xor iurτner removal wnereas τne inleτ(1) and τne ouτleτ(,2j are arranged wiτh level regulaτor means or level inαicaτor means xor τne sτeering ox oil ana waτer- by means ox a register means. SUBSTITUTE SHEET ISA/SE

Inventors: SCHELIN ANDREAS, SCHELIN, ANDREAS
Applicants: SCHELIN ANDREAS, SCHELIN, ANDREAS
Application year: 1996
Main classification: B01D17
IPC codes: B01D17, C02F1