BE1024663B1 - SEA FISHERY WITH RENEWED SET OF DISPLAY ELEMENTS - Google Patents

Abstract

This invention relates to a screen separator (1) for separating waste, comprising a number of rotatable bodies arranged in parallel at a distance from each other, each body comprising a number of screen elements (3) spaced apart along said body and a comprises a number of freely rotatable disentangling elements (4) which are each provided between two side-by-side screening elements (3), said disentangling elements (4) being hook-shaped for attaching the disentangling element (4) over the rotatable body.

Description

(30) Priority data:

(73) Holder (s):

RENTEC NV 8740, PITTEM Belgium (72) Inventor (s):

VERSUER Tom 8740 PITTEM Belgium (54) Sieve device with renewed set of de-warping elements (57) This invention relates to a sieve device (1) for separating waste, comprising a number of rotatable bodies arranged in parallel with each other, a number of sieve elements ( 3) spaced apart along said body and comprising a number of freely rotatable disentanglement elements (4) each provided between two adjacent sieve elements (3), said disentanglement elements (4) being hooked for attachment of the disentanglement element (4) over the rotatable body.

Fig. 1 ——O ———

BELGIAN INVENTION PATENT

FPS Economy, K.M.O., Self-employed & Energy

Publication number: 1024663 Filing number: BE2016 / 5774

Intellectual Property Office

International classification: B07B 1/15 B07B 1/52 Date of grant: 22/05/2018

The Minister of Economy,

Having regard to the Paris Convention of 20 March 1883 for the Protection of Industrial Property;

Having regard to the Law of March 28, 1984 on inventive patents, Article 22, for patent applications filed before September 22, 2014;

Having regard to Title 1 Invention Patents of Book XI of the Economic Law Code, Article XI.24, for patent applications filed from September 22, 2014;

Having regard to the Royal Decree of 2 December 1986 on the filing, granting and maintenance of inventive patents, Article 28;

Having regard to the application for an invention patent received by the Intellectual Property Office on 18/10/2016.

Whereas for patent applications that fall within the scope of Title 1, Book XI, of the Code of Economic Law (hereinafter WER), in accordance with Article XI.19, § 4, second paragraph, of the WER, the granted patent will be limited. to the patent claims for which the novelty search report was prepared, when the patent application is the subject of a novelty search report indicating a lack of unity of invention as referred to in paragraph 1, and when the applicant does not limit his filing and does not file a divisional application in accordance with the search report.

Decision:

Article 1

RENTEC NV, Nijverheidsstraat 13, 8740 PITTEM Belgium;

represented by

CHIELENS Kristof, Pres. Kennedypark 31c, 8500, KORTRIJK;

OSTYN Frans, Pres. Kennedypark 31c, 8500, KORTRIJK;

HOSTENS Veerle, Pres. Kennedypark 31c, 8500, KORTRIJK;

CARDOON Annelies, Pres. Kennedypark 31c, 8500, KORTRIJK;

a Belgian invention patent with a term of 20 years, subject to payment of the annual fees as referred to in Article XI.48, § 1 of the Code of Economic Law, for: Sieving equipment with renewed set of detangling elements.

INVENTOR (S):

VERSCHUERE Tom, Nijverheidsstraat 13, 8740, PITTEM;

PRIORITY:

BREAKDOWN:

Split from basic application: Filing date of the basic application:

Article 2. - This patent is granted without prior investigation into the patentability of the invention, without warranty of the Merit of the invention, nor of the accuracy of its description and at the risk of the applicant (s).

Brussels, 22/05/2018,

With special authorization:

BE2016 / 5774

Sieving device with new set

DRAINING ELEMENTS

This invention relates, on the one hand, to a sieve device for separating mixed waste, comprising a number of rotatable bodies placed at a distance from each other in parallel, each body having a number of sieve elements spaced apart along said body and a number of freely rotatable disentanglement elements each provided between two juxtaposed screen elements. On the other hand, this invention relates to a disentanglement element suitable for mounting over a rotatable body with sieving elements, a sieve device for separating waste. Furthermore, this invention relates to the use of such disentanglement elements during waste separation on a sieve device according to this invention.

This invention particularly relates to a sieve device for separating mixed waste. Mixed waste is a heterogeneous product, which can include all possible materials, such as brittle materials (e.g. stones, wood, ...), elastic materials (e.g. plastic, paper, cardboard, ...), sticky materials (e.g. paint, organic material), tough materials (eg leather), etc.

Current sieving devices comprise one or more spaced rotating shafts or rotating rollers provided with sieve elements in the form of profiled or star-shaped discs, over which solid products or mixed waste are moved (transported). During the movement over the shafts (rollers) and the sieve elements, the finer parts are separated from the coarser parts. The finer parts fall due to gravity between the rotating shafts or rollers provided with sieve elements.

However, the waste to be separated is often a heterogeneous product, which can include all possible materials, such as brittle materials (e.g. stones, wood, ...), elastic materials (e.g. plastic, paper, cardboard, ...), sticky materials (e.g. paint,

BE2016 / 5774 organic material), tough materials (e.g. leather), etc., so that when waste is processed, windings are created of mainly tough, soft, elongated or ribbon-shaped material (e.g. steel wire, ribbons, tape, cords, ...). ) around the rotating shafts or rollers. Such windings can rotate with the rotating shafts or rollers and can get bigger (snowball effect), causing:

the gaps between the sieve elements and with respect to the rotating shafts or rollers become smaller, as a result of which the dimensions of the fine parts falling through the openings become smaller and change over time;

there is contact between the screen elements and the opposite (wrapped) rotating shafts or rollers, which greatly increases the wear due to permanent friction.

In order to avoid the formation of such windings, a number of solutions have been described in the prior art. For example, European patent publication EP 1 106 264 describes a sieve for sorting solid waste, provided with rollers with an axis on which sieve elements in the form of plates extend parallel to each other and perpendicular to the axis of the roller, with between the various rollers there is a freely movable anti-winding element in the form of a cylindrical tube, the diameter of which is greater than that of the shaft and smaller than the diameter of the sieve elements. The rotating part of the shaft is shielded via the cylindrical tube so that the formation of the windings is avoided.

However, the screen direction described in EP 1 106 264 has the drawback that it is very sensitive to contamination, so that the operation of the screen is not guaranteed. Fine components present in the material to be separated, such as sand and (moist) soil, end up in the cylindrical tube during sieving, so that the free space between the rotary axis and the pipe jacket is filled up to such an extent that the pipe simply becomes rotates back with the axis of rotation, so that the winding will then form around the cylindrical tube (anti-winding element).

BE2016 / 5774

This problem often occurs with sieving devices designed to separate finer fractions, where the rotary shafts or rollers and the sieve elements are placed close together so that the gaps between the sieve elements and between the sieve elements and the rotary shafts or rollers are also smaller to be. Because the sieve elements are closer together, the tubular anti-winding elements are also shorter and lighter, so that they will rotate along with the rotating shafts with a previously described drawback, even with a low resistance, for example due to contamination. To avoid this, a variant screen was developed in which a stabilizing body was placed in the tubular anti-winding element. Such a sieve is described in European patent publication EP 2 488 306. However, despite this adaptation, it has been found that the anti-winding elements still rotate with the shaft or roller during rotation thereof during important contamination.

In addition to the drawback described above, the devices described in EP 1 106 264 and EP 2 488 306 have the drawback that round or angular materials such as e.g. stones, small electric motors, etc. remain on the tubular anti-winding elements. Objects left lying around will clog the device and increase wear. In the event of damage or breakage to these relevant devices, the entire shaft or roller must also be removed from the device, after which all sieve elements must be dismantled to the place where the damage occurred. This is, of course, a time-consuming and labor-intensive work.

The British patent publication GB 2 313 284 and the German patent publications DE 568 334 and DE 566 682 each describe a device for separating homogeneous mixing requirement, in particular mixing requirement, comprising moist and adhesive materials. The publications in question describe ways of removing the material that adheres to the screen elements by means of scraping elements.

BE2016 / 5774

The object of the present invention is now to provide a sieve device whose anti-winding elements, also called disentanglement elements, are much less subject to contamination.

The object of the invention is achieved by providing a sieve device for separating mixed waste, comprising a number of rotatable bodies arranged at a distance from each other in parallel, each body comprising a number of sieve elements spaced apart from said body and a plurality of freely rotatable disentanglement elements each provided between two adjacent sieve elements, said disentanglement elements being hooked for freely rotatable attachment of the disentanglement element over the rotatable body. Preferably, the end of the said disentanglement elements is hook-shaped. The screen elements are preferably disc or star-shaped or polygonal.

The rotatable body is preferably polygonal or tubular. In a preferred embodiment, the rotatable body is driven by a rotatable shaft.

The relevant disentanglement elements, which are hung over the rotatable bodies by their specific shape (hook-shaped end) and which, in contrast to the known disentanglement elements, do not have a closed inner space, have the advantage that impurities do not remain on or in the disentanglement elements.

In a preferred embodiment of the sieve device according to the invention, one end of the said disentanglement elements is hook-shaped and the other end extends beyond the sieve elements. In particular, said disentanglement elements comprise a hook-shaped and an elongated part, the elongated part being longer than the radius of the sieve elements. Because the disentanglement elements extend beyond the size of the sieve elements, it is avoided that the disentanglement elements would have a full revolution

BE2016 / 5774. In addition, the elongated part provides the necessary weight so that a stabilizing effect is obtained, so that the disentanglement elements will not rotate during rotation of the shaft.

In a variant embodiment, for example with a sieve device with very narrow (5 to 30 mm.) Sieve elements, extra weight can be attached to the elongated part of the said disentanglement elements in order to increase the stabilizing character of the disentanglement elements.

In a more preferred embodiment of the sieve device according to the invention, the rotatable body further comprises intermediate elements provided between said sieve elements, said disentanglement elements being placed over these intermediate elements. The disentanglement elements are in particular suspended over the connecting means

In a first preferred embodiment, said intermediate elements are fixedly connected concentrically to the rotatable body.

In an alternative embodiment of the sieve device according to the invention, the said intermediate elements are fixedly eccentrically connected to the rotatable body. The eccentric connection will ensure that the disentanglement elements, which are hung over the intermediate elements, move up and down permanently during the rotation of the body. . This movement will cause objects which remain on the disentanglement elements or adhere to the disentanglement elements during processing of the waste, to be pried out and removed from the sieving device.

According to a special embodiment of the sieving device according to the invention, the intermediate elements comprise a spacer sleeve for keeping the sieving elements on the body at a fixed fixed distance.

BE2016 / 5774

In a more special embodiment of the sieve device according to the invention, the disentanglement elements are made of a metal alloy, plastic or spring steel. Manufacturing the detangling elements in an elastic material makes them easy to assemble and disassemble, without the need to remove rotatable bodies.

Another subject of this invention relates to a disentanglement element suitable for attachment over a rotatable body with sieve elements of a sieve device for separating mixed waste, the disentanglement element being hook-shaped for freely rotatable attachment over the rotatable body. The disentanglement element according to this invention is particularly suitable for attachment to a sieve device according to the invention as described above.

The present invention will now be explained in more detail with reference to the following detailed description of preferred embodiments of a screen device for separating waste according to this invention. The purpose of this description is only to provide illustrative examples and to indicate further advantages and details of this method, and can therefore in no way be interpreted as limiting the scope of the invention or the patent rights claimed in the claims.

In this detailed description, reference numerals are referenced to the annexed drawings, where:

figure 1 is a cross-section of a rotatable body (roller) of a sieve device according to the invention, wherein the loose disentanglement elements are placed over axis-fixed and concentric intermediate elements; figure 2 is a cross-section of a rotatable roller of a sieve device according to the invention, wherein the loose disentanglement elements are placed over axis-fixed and eccentric intermediate elements;

BE2016 / 5774 figure 3 is a cross-section of a screen device according to the invention in which the disentanglement elements are placed over shaft-fixed and concentric intermediate elements;

figure 4 is a cross-section of a screen device according to the invention, wherein the disentanglement elements are placed over axis-fixed and eccentric intermediate elements.

The sieve device (1) according to this invention and as shown in attached Figures 3 and 4 is suitable for separating waste, and comprises a number of rotatable bodies arranged in parallel and a number of sieve elements (3) spaced apart of each other are arranged on said bodies. The bodies are driven by a rotatable shaft (2). The sieve elements (3) extend parallel to each other and usually perpendicular to the axis (2) itself.

The sieve elements (3) are usually disc or star formation. Naturally, other embodiments, e.g. polygonal, petal-shaped, are also possible.

In order to avoid the formation of windings, rotatable detangling elements (4) are provided between the different sieve elements (3), freely rotating around the axis (2). The freely rotatable disentanglement elements (4) are arranged in a first variant and as shown in Figures 1 and 3, over concentric intermediate elements (7) fixed with the shaft (2). In a second variant, as shown in figures 2 and 4, the freely rotatable disentanglement elements (4) are placed over eccentric intermediate elements (7) fixed with the shaft (2). In practice, the intermediate elements (7) comprise a spacer sleeve which is provided to keep the sieve elements (3) on the shaft (2) at a fixed fixed distance.

In a variant embodiment of the invention, the sieve elements (3) can be provided eccentrically on the shaft (2), whereby the product on the sieve device is shaken more during the rotation of the shaft (body).

BE2016 / 5774

The disentanglement elements (4) have, as can be seen from the attached figures, a hook-shaped (5) and an elongated (6) part, the elongated part (6) being longer than the size (radius) of the sieve elements (3). Due to the specific shape of the detangling elements (4), they do not have an enclosed inner space, so that dirt and impurities cannot accumulate. The elongated part (6) has sufficient weight so that the detangling element will remain in position and will not rotate with the shaft (2) during waste processing. If necessary, the elongated part (6) can still be weighted with extra weight. The long stem (the elongated part) of the disentanglement element (4) has a length such that it will prevent the disentanglement element from rotating completely. The opposite sieve elements (3) then come into contact with this stem and in this way prevent full rotation of the disentanglement element (4).

In the second variant (see figures 2 and 4), where the intermediate elements (7) are mounted eccentrically on the shaft (2), the disentanglement elements (4) will move up and down permanently during rotation of the shaft (2), whereby any objects that remain on or have adhered to the detangling elements (4) sieve device are detached and removed.

The disentanglement elements (4) are made of a metal alloy (eg spring steel) or elastic plastic. Preference is given to an elastic material so that the disentanglement elements (4) can be easily mounted, exchanged and disassembled, without removing the rotating rollers.

In a further embodiment (not shown) the sieve elements (3) can be made thinner in the zone around the central axis (2) and the disentanglement elements (4) are made wider in this zone and narrower in the rest of their length. This is to reduce the penetration of fine material between the intermediate elements (7) and the disentanglement elements (4).

BE2016 / 5774

Claims (9)

CONCLUSIONS Screening device (1) for separating mixed waste, comprising a number of 5 rotatable bodies spaced parallel to each other, each body comprising a number of sieve elements (3) spaced along said body and a number of freely rotatable disentanglement elements (4) each provided between two adjacent sieve elements (3) arranged, characterized in that the said 10 detangling elements (4) are hook-shaped for freely rotatable attachment of the detangling element (4) over the rotatable body. Screening device (1) according to claim 1, characterized in that said body is driven by a rotatable shaft (2). Screening device (1) according to claim 1 or 2, characterized in that one end of said disentanglement elements ( 4) is hook-shaped and the other end extends beyond the sieve elements (3). Sieve device (1) according to one of the preceding claims, characterized in that said disentanglement elements (4) comprise a hook-shaped (5) and an elongated (6) part, the elongated part (6) being longer than the radius of the sieve elements (3). Sieve device (1) according to any one of the preceding claims, characterized in that the rotatable body further comprises intermediate elements (7) provided between said sieve elements (3), said disentanglement elements (4) being placed over these intermediate elements . BE2016 / 5774 Screening device (1) according to claim 5, characterized in that said intermediate elements (7) are fixedly concentrically connected to the rotatable body. Screening device according to claim 5, characterized in that said 5 intermediate elements (7) are rigidly connected eccentrically to the rotatable body. Sieve device (1) according to any one of claims 5 to 7, characterized in that the intermediate elements (7) comprise a spacer sleeve provided for keeping the sieve elements (3) on the body at a mutual fixed distance. Sieve device (1) according to one of the preceding claims, characterized in that the sieve elements (3) are disc or star-shaped. Screening device (1) according to one of the preceding claims, characterized in 15 that the disentanglement elements (4) are made of a metal alloy, plastic or spring steel. 11. Detangling element (4) suitable for attachment over a rotatable body with sieving elements (3) of a sieve device (1) for separating mixed Waste, characterized in that the disentanglement element (4) is hook-shaped for freely rotatable attachment over the rotatable body. BE2016 / 5774