Patent Application
20160083923
The invention relates to a cleaner, i.e. a cleaning device, for cleaning oil from a brush system collecting oil. In particular, the invention relates to a device that is suitable for use to clean a brush device used for collecting light oils, such as diesel and crude oil.
The invention also relates to the use of a cleaning device for separating oil from an oil-collector brush.
The prior art in the field of the invention is, for example, a cleaner disclosed in publication print FI 66952, in which the rectangular tongues of the cleaner detach the oil from the brush by wiping them.
The general level of the prior art is represented by FI patent 107280 and application publications WO9964683 and WO2004025034.
The background to the new idea is Finnish patent 123412 and particularly Finnish patent application FI 20125704, which describe the use of, for instance, a brush ring for collecting oil. Such an oil collector includes a brush equipped with bristles, typically straight bristles, and a horizontal shaft. The bristles of the brush are essentially parallel to the horizontal axis of rotation of the brush. Thus the bristles rotate in the transverse direction, i.e. come into contact laterally with the surface of the oily water to be cleaned, i.e. simultaneously over their entire length. Similarly, they rise from the water to be cleaned transversely, so that the centrifugal force caused by the rotation of the brush does not slide the oil along the surface of the bristles in their longitudinal direction, but instead the centrifugal force acts of the surface of the bristles in a perpendicular direction.
If rectangular tongues are used in the cleaner to wipe generally cylindrical brushes, it has proved to be very difficult to collect oil, particularly if the oil in question is light oil. The oil contained in the brush rings of the brushes tends to flow off the brushes, or to flow back once the oil has been wiped and recovered.
The present invention is intended to eliminate problems relating to the prior art and create a new type of solution for cleaning an oil collector brush.
By means of the invention it is sought particularly to create a cleaning device, which has a construction that it is able to clean brushes attached laterally to a brush ring, especially when collecting oil that is difficult to collect.
The invention also creates a solution for separating from a brush ring light oils, such as diesel and crude oil, and similar oils that are difficult to collect.
The invention is based on the idea of wiping oil from the bristles of the brush drum by using curved tongues.
The cleaning device comprises, for example, a structure, arranged in the upper part of the brush of the oil collector, for cleaning the brush of oil, which structure there is a body and, attached to the body, tongues arranged with a curved surface. The body of the cleaning device forms, for example, a curved bottom plate of the lower part of the cleaner and one, or preferably several, upper plates in the upper part, in such a way that there are curved wiping tongues between the bottom plate and the upper plate. The cleaner is attached to the body of the collector by means of, for example, an attachment sheet, i.e. an attachment plate.
The basic structure of the body of the collector can consist of, for example, a drum surrounded by discs that pass water through, to which brush rings are attached. The device is arranged in connection with a brush ring.
The curved cleaner is particularly intended for use, for example, when collecting oil with a brush drum, in which the brushes of the brush disc are attached transversely to a plastic ring.
In operation, the construction of the cleaner, relative to the construction of the brush extending to the curved rear wall of the body of the collector, is such that the curved bottom and the transverse brushes attached to the plastic ring create, together with the tongues, a tight plough-shaped obstacle. When the brush drum rotates and meets the plough-shaped obstacle, the wiped oil flows over the curved rear wall of the collector body.
Here a cleaner is also disclosed, by means of which brushes are cleaned, which, for example, are attached to a V-shaped brush structure in which there is a plastic-bodied brush ring and in the cleaner there is a point-shaped plate and its bent point shape.
More specifically, the device according to the invention is principally characterized by what is stated in the characterizing portion of claim 1.
For its part, the use according to the invention is characterized by what is stated in claim 11.
The cleaning device is able to clean brushes attached laterally to a brush structure, especially when collecting oil that is difficult to collect. The device is suitable for separating, for instance, diesel and crude oil from the brushes.
The construction of the cleaner relative to the construction of the brush is such that, when the brush drum rotates the brush rings of the brush drum, it permits or assists recovery, and promotes the flow of oil wiped from the brushes over the rear wall of the collector body.
By means of the cleaning manner described, the journey of oil from the water to the cleaner is very short and the collection of oil is maximized.
On the basis of modification of the structures of cleaners according to the invention, the cleaner is especially suitable and intended for use mainly when collecting oil with a brush drum.
Several cleaners according to the invention can be placed next to each other and thus, for example, a device with the desired capacity can be constructed.
In the following, embodiments are described in detail with reference to the accompanying drawings.
In the present case, the term “brush ring” refers, for example, to a plastic ring, to which the brushes, i.e. bristles are attached. The term brush ring particularly refers to a construction, in which the bristles are attached laterally to the side of the ring, parallel to the axis of rotation of the ring, i.e. axially. In one embodiment, the term brush ring refers to a brush construction according to the patent application FI 20125704 described above.
The contents of FI patent application 20125704 is attached to the present application by way of reference.
The oil collector according to FI application 20125704 typically includes a solid drum with a horizontal shaft. When the device is in operation, its axis of rotation is thus parallel to the surface of the water. An annular flange is attached to the outer surface of the drum, i.e. a brush support around the drum. There are a suitable number of brush supports at a distance to each other in the axial direction. A plate-like attachment flange runs around the outer circumference of the brush support at right angles to the brush support. The brush support is equipped, for example, with flow openings, which permit the flow of water on the surface of the drum, in its axial direction.
In the attachment flange is a brush body, to which bristles are attached over the length of the circumference on two opposite sides, in such a way that the bristles protrude from the brush body in opposite directions in the axial direction of the drum.
When the oil collector that has been described is used, oil from the flowing water adheres to the bristles and remains on them while sliding outwards towards the comb structure that cleans the bristles.
On the basis of what is described above, in one embodiment the structure of the present oil collector comprises a drum attached to the collector's body, which is surrounded by discs that pass water through them, in which there are oil-collecting brush rings.
In the oil collector, there is a structure, for example, a comb-like structure, for separating the oil from the bristles. Such a structure can also be called a cleaner, i.e. a cleaning device. In the cleaner are tongues that wipe the oil off the oil collector's bristles.
Particularly the tongues are curved, more specifically they have a curved surface, and most suitably they are curved in the longitudinal direction of the tongue.
The curvature of the tongues can be, for example, roughly the magnitude of the curvature of the circumference of the brush drum, or slightly larger than it. Thus, in one embodiment the tongues curve roughly in the direction of the circumference of the brush drum; in another embodiment their curvature is sufficiently greater than that, so that the tongues curve towards the circumference of the brush drum. Most suitably however, the free end of the tongues points in the direction opposite to the direction of rotation of the brush drum.
In a second embodiment, the invention is based on the idea that the longitudinal axis of the tongues is at an angle to the tangent of the circumference of the brush drum, i.e. the tongues are at least to some extent tilted relative to the tangent. Most suitably, the tongues are oriented outwards from the tangent.
As described above, the body of the cleaner is preferably formed by the curved bottom plate of the cleaner's lower part and the upper plates in the upper part, between which are the curved wiping tongues. The device is arranged in connection with the brush ring; most suitably it is attached to the body of the oil collector. It can be attached to it, for example, by an attachment plate or similar sheet, or by some other rigid attachment element, either directly or by means of an attachment beam.
The curved cleaner is intended to be used mainly when collecting oil with a brush drum, in which the bristles of the brush ring are attached transversely to a plastic ring, as described above.
In operation, the construction of the cleaner relative to the construction of the brush extending to the curved rear wall of the body of the collector is such that the curved bottom and the transverse brushes attached to the plastic ring create, together with the tongues, a tightly fitting plough-shaped obstacle. The plough-likeness is illustrated in the accompanying drawings. Generally, this means that the tongues are arranged relative to each other in a V shape, at least longitudinally, but possibly also transversely. When the brush drum rotates, the oil wiped when it meets the plough-shape obstacle flows over the curved rear wall of the collector body. Using such cleaning, the journey of the oil being cleaned from the water to the cleaner is very short and the oil collection is maximized.
As an example, the cleaner can be constructed in such a way that between the centre lines of the plastic rings of each brush ring is a separate cleaner attached to an attachment beam of the collector body. The width of the bottom plate determines the space between the plastic rings in an axial direction and the width of the upper plates, viewed from above, is the distance between two plastic rings.
A modified cleaner bottom plate can be used with V-shaped brushes, in such a way that in the cleaner is a point-shaped plate, so that the escape of the oil is prevented when it is being collected. The bottom plate is most suitably shaped to form a narrowing point in the direction of the free end of the tongues. In this case, the point-shaped plate and its bent point shape extend over the rear wall of the collector body.
Embodiments of the new technique are shown in the drawings.
The following clauses define embodiments according to the invention:
Clause 1. Cleaner, which includes tongues wiping oil from the brushes of a collector, in which case the cleaner is characterized in that its body includes a lower plate and upper plates as well as curved tongues, with the aid of which the brushes attached laterally to the plastic ring of the brush ring are cleaned.
Clause 2. Cleaner according to Clause 1, which is characterized in that it has plough-shaped tongues.
Clause 3. Cleaner according to Clause 1, which is characterized in that the point-shaped plate and its bent point shape extends over the rear wall, particularly the rear wall of the oil collector.
Above, (in
The gaps between the tongues can be mutually of equal magnitude, or, as shown in
The present device is suitable for use for wiping the brushes of various oil collectors. Although it is particularly suitable for separating from bristles light oils and similar organic substances that are immiscible with water, it can also be used for separating heavier substances.
| Number | Date | Country | Kind |
|---|---|---|---|
| 20130144 | May 2013 | FI | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/FI2014/050393 | 5/21/2014 | WO | 00 |
