FI63615C - ANORDNING FOER UPPSAMLANDE AV OLJA FRAON EN VATTENYTA - Google Patents

Description

ΓΖΐ ΓβΙ ANNOUNCEMENT s τ s * r (1) utlAggninosskrift 63 61 5 C Patent granted 11 07 1983 '' Patent neddelat ^ ^ (51) Kv.ik.Wa1 E 02 B 15/04 FINLAND — FINLAND (21) (wmh. k «Bu * -p« «K * ^ kn <nl 790579 (22) H» k * mrtp »lvl - AmCMcnlngtdag 21.02.79 * * (23) Alkuptivl— GlMghttadag 21.02.79 # (41) Tulkit lulkMcal - Whrtt offantlig 22/8/80

Patent · la rakiaterihallftut .... ._______. _. . .. _ ._ _. . . (44) Nlhttvikflpmon | -

Patent · och rtflttantynlnn AnaBkin utltgd och wtlJknftM puMinrad 31.03.83 (32) (33) (31) Requested benefit · —Segird priori * · * (71) Oy Nokia Ab, PO Box 1 + 19, Pursimiehenkatu 29-31, 00101 Helsinki 10 ,

Suomi-Finland (FI) (72) Juha Kalervo Siira, Järvenpää, Martti Olavi Ikonen, Helsinki,

Suomi-Finland (FI) (5M Device for collecting oil from the surface of water - Anordning för uppsamlande av oija fr & n en vattenyta

The invention relates to a device for collecting oil from the surface of water, the device having two used rollers in different planes rotating at the same circumferential speed and rotated by an oil collecting element such as a conveyor belt so that the belt part above the rollers is taut and the belt part , and that the direction of movement of the lower belt portion is from the lower roll to the upper roll.

for collecting oil from the surface of water, there are several devices operating on different principles, of which free-flow devices, disc collectors, belt collectors and cola conveyors are known.

In devices operating on the principle of free flow, the oil flows from a gap parallel to the surface of the water to a lower level from which the oil is pumped out. The weakness of the method is the abundant water content.

In the disc collector, the disc first pushes the oil down, causing the oil to adhere to it. The oil is then scraped above the water surface 2 6361 5 and led along the chute to the pump.

The weakness of the method is that the device is not able to peel off contaminants larger than the disc gap, and the device does not work properly when the oil was very rigid.

There are several principles of strip collectors: a) the oil sticks to the metal strip from which it is scraped off.

b) the belt conveys the oil down to the space where the oil is scraped from the belt, and when the oil layer is thick enough it is pumped out. The method is not sensitive to even large contaminants, but requires a certain water depth.

(c) the belt acts as an ordinary conveyor carrying oil upwards on its upper surface. At the top end roller, the oil is scraped off. The disadvantage of the method is that the oil has to be pre-collected with accessories on a wet belt rising from the water, because the belt causes a harmful flow away from the belt as it moves.

(d) strips in which the cavities carry the oil up the gutter into the basin. The disadvantage of this method is the large amount of water, especially if the oil is present in a thin layer.

The object of the invention is to provide a device by which oil is obtained from the surface of water as little as possible despite the impurities in the oil and the variations in the viscosity of the oil. It is also intended to provide a device that operates in very shallow water, such as on a beach at the water's edge.

The device according to the invention is characterized in that the oil collecting element, such as a conveyor belt, has a thick metal articulated net and that under the lower belt part there is an oblique flat surface against which the articulated net drags along oil lumps and the like.

The advantage of the invention is that the articulated net lands on the oil layer from the air, whereby the oil adheres to the net before water can adversely wet it. At the same time, the network causes a flow of water towards the device towards the device, which enhances oil collection. As a result of the weight of the net, the oil is pushed down and penetrates the loops of the net in water due to its specific weight. Thus, a small amount of metal about n 6361 5 3 is able to bind a large amount of oil around itself. When the net carries the oil up the water at an oblique level, the oil and water separate at the level as follows: water can drain through the loops of the articulated network downwards, the downflow of oil is slower than water due to oil viscosity and oil adhesion. At the end of the level, the net is released from the oil by gravity. However, some of the oil is not released by gravity, but requires a scraper placed on the roll. Some of the remaining oil in the downstream network drips upwards onto the oil-carrying network.

When collecting rigid oil, the level can be heated, which makes the oil detach better from the network and at the same time also into a better pumpable form. When the impurities are in the oil, the articulation grid upwards on the level. To the underside of the net would always be loose and the upper side becomes tight upper and lower rolls rotate at the same speed. This is achieved by the so-called tahdistusketjulla.

The invention will now be described with reference to the accompanying drawings, in which - Fig. 1 shows a device according to the invention in a side view - Fig. 2 shows a device according to the invention seen from above - Fig. 3 shows a part of the articulated chain used in the device.

The invention consists of a continuous strip 1 and an oblique plane 2. A pulling roll 3, over which the strip 1 rotates is at the upper end. At the lower end there is a second roll 4, which is connected to the driving roll 3 ns. Pacing-chain 5. The strip-shaped link network is provided with tracks on both edges, and depends on the underside of the upper side in tension in the level 2 on the loose. When the machine is operating, the oil sticks to the net and travels upwards on the level. At the upper end there is a space 6, where at the end of the level the net can be emptied by gravity. For rigid oil, there is a scraper 7 on the upper roller.

The operation of the collector in the wave can be improved so that the upper end is articulated 8 e.g. to the vessel and the lower end has a float 9 which keeps the net at the optimum height relative to the water surface.

4,6361 5

The drawing and the related description are only intended to illustrate the idea of the invention. The details of the device according to the invention can vary considerably within the scope of the claims.

Claims (6)

1. A device for collecting oil from a water surface, said device having two in the existing horizontal horizontal rotating driven rollers (3 and 4) at the same peripheral speed, running around a conveyor belt-like oil collecting element (1), such that the part of the belt which runs above the rollers are tensioned and the part of the belt running under the rollers hangs slack in the water after the lower wire (4) and that the direction of movement of the lower belt part is from the lower wire to the upper wire characterized thereof. , that the conveyor belt-like oil collection element is a relatively coarse metal mesh (1) and that under the lower belt portion there is a sloping plane surface (2) against which the metal mesh traps, which drains with it for the plane oil clamps and the like. 2. Device according to claim 1, characterized in that the sloping plane (2) terminates in the vicinity of the upper roller (3), so that any conveyor transported by the link network can fall into an oil collection pool placed under the upper roller (3). Il