DE2226635A1 - - Google Patents

Description

Patent Attorneys DIpL-Inn- Γ ".! 3EETZ sen.
DlpMrcj. f. ί-AivlPiXCHT

Dr.-In.;. f ?. TJ ti ίΐ TZ jr.
β Munhon 22, Steinsdorfstr. St.

65-18.824P (18.825H) 31-5 1972

JBF Scientific Corporation, Burlington / Mass. (UNITED STATES)

Facility for picking up and collecting floating Materials from the surface of a liquid

The invention relates to a device for collecting in particular oil, oil sorbents or other floating substances, from a water surface with the help of an endless material conveyor belt, which is relative to the water in the way moves that a wide variety of liquid and solid floating matter are absorbed and collected. The device is conveniently located on a crane or boat or another floating vehicle and is used for cleaning, for example Docks or bays used. The invention is described in more detail for these purposes, although they advantageously also used in other environments can be.

Known floating material working with endless conveyor belts Collection devices such as those described in U.S. Patents 3,331 ^ 5 ^ 0 and 3 314-5 ^ 5 are due to their design limited in the absorption capacity of collected floating matter in solid or liquid form. The effectiveness of some known constructions is influenced by the adhesion of the swimming

65-151 838 + 231 977-Sd-r (7)

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substances on the conveyor belt. In other proposed embodiments, the floating material is pressed down to be picked up and others require pumps to collect the floating materials. It is also known at least in part of floating materials in front of the facility, bulldozer-like, but the Increased likelihood of significant amounts of floating matter to the side and thus not be absorbed. Another floating material that works according to the skimming principle faufnahmeapparat has a submerged front lip or plank and detects all materials, whether to be collected Floating matter or draining liquid that is above the plank is located. However, this skimming recording device only detects the floating matter that is above the Plank and leaves out all the floating debris that is in float at a certain height or immerse themselves in the water by a certain amount.

The object of the invention is to provide a device for picking up floating material from a water surface to create that largely includes all solid or liquid floating matter without displacing them sideways, which the Collects floating matter without subsequent loss and that simply is trained and works reliably.

The inventive device for cleaning a water surface of floating matter comprises a floating vehicle, for. B ₈ a boat, an endless belt running around rollers, the lower belt of which runs from a front roller above the water level to a rear roller below the water level. The lower belt of the material conveyor belt thus forms an inclined surface pointing downwards and forwards,

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which is exposed to the water and the hull ₀ An open-bottomed container-like enclosure is located on the floating craft immediately behind the aft end of the sub-belt. A drive mechanism moves the belt so that the sub-belt runs from the front roller to the rear, submerged roller. This movement conveys the floating material lying in the lane of the floating vehicle together with the lower belt downwards. It is evident that this happens due to hydrostatic and hydrodynamic forces which press the floating material against the belt empties the floating matter adhering to it into the container. Water, which also enters the container, flows out through the open bottom. The bottom preferably has a guide or dam device ₉ which calms turbulent flows and prevents the floating matter from flowing out .

The floating vehicle preferably has hull walls that extend on both sides along the lower belt and a lateral drainage of the materials below the belt impede. The material conveyor belt can have holding members to increase the accumulation of floating matter on the lower belt. Furthermore, the material conveyor belts can be perforated or impermeable. For example, the tape have large, through holes, the floating material receiving pockets furthermore, the lower part of the perforated belt can slide beneath a fixed platform which prevents leakage of trapped floating matter. Cleaning devices, such as scratches, rakes, rollers and / or Brushes run on the material conveyor belts in the container and bring the floating matter adhering to the belt into the container.

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According to an advantageous development of the invention the container bottom with a dust or oil trap designed as an oil catcher. Provide guiding device. This device prevents turbulent Currents in the withdrawal of once collected floating matter from the container. The floating matter arrives through this damming device into the container and water also flows through it. At the aft end of the lower conveyor belt the floating material under the conveyor is released and floats up. This floating matter ends up in the collecting container through openings in front of the stowage or guiding device, as well as through openings in the guiding device self.

Once the floating matter is in the originally water Collect the filled container, the latter is displaced. The displaced water flows automatically through the guide device away. Therefore, no significant pressure develops in the collecting container when it fills with floating matter, so that other floating matter can rise just as easily as that initially collected. This damming and guiding device keeps turbulent liquid flows during the entire operation from entering the container, thereby preventing any floating matter that has already been collected from flowing out.

According to an advantageous development of the invention is located Under the baffle and guiding device there is a largely exposed plate, which prevents an inflow of turbulent Liquid cext flows into the collecting container even further reduced. This plate ensures that the sump is isolated from currents that occur when maneuvering the Vehicle, for example in sharp turns, arise »

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The device according to the invention has the particular advantage of a simple construction of the individual elements as well as an extremely expedient arrangement of the various functional elements.

For a better understanding of the invention are in the following Exemplary embodiments explained in more detail with the aid of the drawing ο It shows?

Fig. 1 is a vertical longitudinal section through a floating matter collector with a collecting vessel for the absorbed floating matter according to. Invention;

FIG. 2 is a partially sectioned plan view of the collector according to FIG. 1;

3 shows another embodiment of the bucket according to the invention. fabric pick-up and collection vehicle in longitudinal section ;

K shows a further embodiment of the floating matter collector according to the invention in a longitudinal section;

5a and 5b enlarged perspective representations of various parts and rollers for material handling;

6 and 7 are partially sectioned side and front views of a further embodiment of the invention Collector vehicle.

Figs. 1 and 2 show a boat 10 with an inclined

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downwardly running belt 12 for the material transport 14, which runs out of the water to separate the floating matter 16 from the water surface and to collect the matter in a collecting container 18 at the bow 10a. which are connected to one another by a stern wall 24 and a midship structure 26 and together form a catameran-like hull. The material transport 14 takes place continuously with the aid of an endless belt which runs over rollers 28 and 30, a drive roller 32 and a tension roller 3k . The rollers have parallel axes of rotation that are horizontal and transverse to the bow-stern direction of the boat. The rollers 28, TO and 32 are mounted on the inside of the boat hulls and span the width between these hulls. The tensioning roller 3k is similar, but is mounted via moment arms 3 ^, each of these arms being pivotably articulated on the floating body at a certain horizontal distance from its rotatable mounting of the roller shaft 34. The roller 28 is located at an upper, front location 38 close to the bow of the boat above the water line kO, so that waves hitting it cannot wash over it during the absorption of floating material. The roller 30 lies at a lower point 42 remote from the boat stern below the point 38 and during the floating material -auf would take constantly below the waterline k0. A straight construction line is tangent to the lower surfaces of the two rollers 28 and 30 and leads obliquely downward from point 38 to point 42. The angle of inclination to the horizontal is preferably between 10 and 35 degrees. However, angles in the range between 5 and 45 degrees can also be set, the greater discharge of collected floating matter generally depending on the angle of inclination. That

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The conveyor belt -1 4 runs around the rollers 28 and 30, the lower belt part 12 running essentially along the common tangent. The drive roller shown is located in front of the roller 30 by a small amount. The tension roller 34 rests on the upper part of the conveyor belt, which runs between the drive roller 32 and the front roller 28 ₀

The endless belt that transports the material shown 14 takes over, is largely impermeable to liquids or the other materials to be collected «, In the embodiment for the absorption of oil or other solid substances, the transport can be carried out using a woven or molded tape construction or a fu; laminate formed in both constructions. The eim « Motor and a reduction gear comprehensive drive 44 is coupled to the roller 32 via a drive linkage 46. He drives the roller clockwise (Fig. 1), so that the Transportband.in the direction of arrows 48 moves and the lower belt 12 runs from roller 28 to roller 30.

As shown in FIGS. 1 and 2, a belt cleaner 50, for example in the form of a scratch, can optionally be attached to the midship s-frame 26, which holds the material adhering to the conveyor belt in the area between the rollers 30 and 32 removed.

The inner walls of the floating bodies 22 and the rear wall 24 form three side walls of the collecting container 18. These walls extend from above waterline 40 to at least

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to the lowest surface of the roller 30 and consequently to the lowest point of the lower belt 12 «. The rear wall 52 of the midship structure 26 and the length of the conveyor belt Ik between the rollers 30 and 32 form the front end wall of the container 18. front * - «whose part immediately behind the roller 30 a free opening 5 ^ o A baffle 56 for damping the turbulent flows extends at least along the larger part of the bottom residue, the remaining parts either tightly closed or, if desired, for a Fluid flow can be open. The underside of the grate is preferably flat and is at or near the same horizontal level as the lowest point of the lower conveyor belt 12. This arrangement reduces turbulence between the front end of the grate and the point k2 and promotes the entry of floating matter into the container. Although not shown in the drawing, the boat 10 may include Bllast and any screw device of conventional design.

The floating matter pick-up vehicle 10 works by pulling the floating matter down through the lower belt of the conveyor belt 14 and then conveying these substances away into the collecting container 18. A pump 58 on the vehicle pumps the collected floating matter material from the container into a further storage tank. The forward movement of the vehicle 10 pushes the floating matter coming into contact with the lower belt 12 gradually below the water line 40. The floating matter then exerts a pressure on the conveyor belt. This pressure enables the further transport of the floating matter under the waterline kO and the transport when it is the back of the lowest roller 30

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Has. Accordingly, the floating solids are held on the conveyor lower belt by a combination of hydrodynamic and hydrostatic pressures so that they move with the belt as it travels from the front upper roller 28 to the lower roller 30. The drive kk drives the conveyor belt 14 generally at a speed which depends in part on the cruising speed of the vehicle, taking into account that the horizontal component of the transport speed is practically as great as the speed of the boat in the water ”, under these conditions only slight relative movements occur between the lower conveyor belt 12 and the surrounding water containing floating matter. However, the method according to the invention can also be carried out at a higher or lower transport speed than the vehicle speed. With the embodiment shown, floating substances such as oil or oil sorbents can be picked up at a transport speed between 0.5 and 5 »0 ft / sec.

At a certain point along the conveyor belt 12, the inner side walls of the hulls 20 and 22 extend deeper into the water than the belt, and aft of the point kZ they extend deeper than the belt at this point. The parts of the floating body side walls below the lower belt prevent the floating matter supplied by the belt from flowing off or from other lateral movements, e.g. B. side currents, during transport and thus at the "outflow" under the belt. Instead, the floating material remains under the lower conveyor belt due to the channel enclosed by the floating body side walls.

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From the lower point k2, at which the lower belt of the material transport ends and the upward transport begins, the trapped floating material is no longer pressed into the water, but is released and rises due to its buoyancy. As shown in Fig. 1, a large amount of floating matter flows into the container through the opening 5k in the front of the baffle. Further portions of floating matter are carried aft with the water flow and enter the container through the stowage grid when ascending collected floating matter, which collects in the container, enlarged. The opening 5 ^, which can be part of the stowage grille, is kept large enough to allow the introduction of large pieces of solid floating matter, for example wood, into the container. The floating matter that has reached the collecting container 18 rises in this up to the surface of the water. As shown above, the water displaced by the floating matter flowing into the container leaves it through the baffle 56.

The baffle grille dampens turbulent water currents that could pull floating matter out of the container again. The stowage grid shown is a honeycomb grid made of upright or edged strips. Other constructions and designs can be used as a dam, with the aim of preventing the floating material from entering the Allow container and allow water to flow in or out of the container, depending on the height of the collected floating material layer, and with the

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"Another task to dampen W3.sserströme through which floating material that has already been collected could be drawn off from the container." , transversely to the direction of movement of the vehicle., whereby other than these constructions with conventional grids can be used.- Furthermore, the guide or stowage openings can progressively decrease along the span of the stowage device from the point 42 to the aft The baffle device shown in Figures 1 and 2 is provided with openings of 5 to 20 cm along each side and has a height between one to three times this dimension.

As stated above, include those with the help of the vehicle 10 according to Figures 1 and 2 collected floating matter solid and liquid materials including oil, oil sorbents and a wide variety of other floating liquids and solid materials. The scraper 50 is removed any adhering or otherwise entrained floating material from the conveyor belt 12 after this has passed the lower roll 30 has rotated and before it reaches the drive roller 32. That Material released from the conveyor belt by the scraper is collected in the container 18.

FIG. 3 shows a floating material pick-up vehicle 6o similar to the boat 10 in FIG. 1. In this vehicle 6o a conveyor belt 62 is stretched over three rollers 6k , 66 and 68 and forms one of the belts. 12 according to FIG. 1 similar sub-belt 70. The roller 68 is arranged above the roller 66 and the waterline. This arrangement forms the entire

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Front wall of the collecting container 72 through the transporting between the rollers 66 and 68. The vehicle 60 also has a midship structure 74 which forms a storage tank 75 for the collected floating matter. A pump 16 conveys the floating substance from the collecting container 72 into the tank 75 via a line 78 which, as shown, can lead through the belt 62 into a floating body 80.

Fig. 4 shows a further floating material pick-up vehicle 82 in which a large drum 84 in connection with a front roller 86, a collecting or transport belt 88 to achieve a movement and a downwardly inclined belt part 90, which the floating material into one Collecting container 92 carries, drives and guides. A stationary drum 94 which receives fuel, ballast or the drive unit for the vehicle 82 has three rotatable wheel rollers 96, 98 and 100 which set the conveyor roller 84 in rotation relative to the inner roller 94. A wheel roller is driven to drive the roller 84 and thus the transport 88. A similar set of three wheel rollers, not shown, is mounted on the stationary roller frame 94 and maintains roller 84 in an axially separated position from the three wheel rollers 96, 98 and 100 shown in one in front of roller 84 and between the top - And the tank 102 arranged on the lower belt of the conveyor belt 88, the excess floating matter drawn off from the container 92 by a pump 104 is collected.

The vehicle 82 shown in FIG. 4 also has a platform IO6 with a continuous surface 106a for the Apron belt 90 between roller 86 and drum 84. Surface 106a extends substantially along the tangent

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between the lower surfaces of drum 84 and roller 86. The cylindrical surface of drum 84 and the flat surface 106a thus form a substantially continuous surface which extends past the full length of the tape transport attachment of the floating matter. Where this area is impenetrable to the material being picked up, the belt may have an open rather than a continuous, substantially float-impermeable (Fig. Z) construction.

FIGS. 5a and 5b show open constructions of the conveyor belt 88. In FIG. 5a, the conveyor belt 88 is provided with holes 106. The side walls of the holes increase the transport accumulation of various floating substances and consequently increase the movement of such floating substances on the lower belt 90 (FIG. K) to the collecting container 92.

Fig. 5b shows another embodiment of an open conveyor belt, as it can be used in the device according to the invention. This conveyor belt 88 ″ has two endless chains 108 and 110 on the peripheral edges of the conveyor, which are connected to one another by transverse webs 112 in a similar manner to scraper conveyors. This transverse web construction can be cleaned of adhering floating matter by a brush 114 (FIG. K) For this purpose, the brush can either be fixed or designed as a rotary brush, the direction of rotation of which is preferably opposite to that of roller 84. Such a brush can of course also be used for cleaning other types of belts, such as those shown in FIGS .

The conveyor belt 88 is attached to the roller 86 and the roller

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84 driven by sprocket wheels 116 (Fig. 5b), which are m.ontiert on the roller or on the roller from case to case. Indeed, with this belt construction, the roller 86 simply take the form of two rotatable sprockets so that a cylindrical surface is not required. The expression "Rollers" is used in a broad sense herein and includes this specification as well as other rotatable conveyor belt guides and drive wheels.

As an alternative to assembling the material transport device and the collecting container on a boat or other vehicle shown in the drawing can also have other constructions get to implementation. For example, spars or others can be used for material transport according to the invention Boom of a boat may be provided, which has a downwardly inclined lower conveyor in the front part of a floating matter collecting container form.

Figs. 6 and 7 show another floating matter collection » vehicle 110 according to the invention. Just like the embodiments according to FIGS. 1-4, the vehicle 110 has a sloping front Conveyor belt 112, which floats from the water surface 114 conveys down below the surface and emptied it into the inlet of a collecting container 116. The lowermost end of the lower conveyor belt 112 is located in the same height and at a certain distance in front of a storage or guiding device, which is transverse to the container bottom extends and prevents an outflow of collected floating matter downwards out of the container.

The vehicle 110 has two special features compared to the embodiments in FIGS. 1-4. One consists in the fore

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presence of a bottom plate 120 at a certain distance to the baffle or guide device 118 and the other in one complete funnel shape of the collecting container 116.

The funnel-like geometry of the collecting container drives the floating matter in the container to a relatively narrow catchment space 122 at the top of the container. A pumping system 124 sucks the pumpable floating matter from the trap area of the container storage tanks expediently located in the vehicle floats. This arrangement reduces the possibility that the pump system sucks water out of the container when the sea is relatively rough. Accordingly, the volume of floating material is also reduced, which must remain in the container in order to prevent water from being captured when pumping out the "floating matter"

As can be seen in detail from FIGS. 6 and 7, the horizontal cross section of the funnel-shaped collecting container 116 smallest at the top and largest at the bottom of the container. The horizontal cross-section of the container progressively decreases in height at least on the upper container part, to give a tunnel-like construction. However, it is not necessary that the container side walls also be asymmetrical are inclined inwardly, since the funnel does not have to be symmetrical in order to realize the above advantages.

In the embodiment according to FIGS. 6 and 7, the base plate 120 is to prevent turbulence or others Currents provided that can not be suppressed by the guide and damming device 118 and with the collected Mix floating matter. It is precisely such currents that can reduce the proportion of swimming pools that have entered the tank.

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reduce substances and pull them out of the container through the guide device. In addition, the baffle 118 and the bottom plate 120, which is actually another baffle, reduce the turbulence in the vessel, with the result that. a high degree of Ge weight separation takes place between the collected floating matter and the water in the container.

The plate 120 can be either waterproof, e.g. B. made of a metal, or be porous as long as it flows blocked. The plate preferably spans the width of the vehicle between the two floats 126 and 128 and extends at least along the length of the container bottom. As shown, the plate can also extend to the rear of the vehicle. It may also be desirable to have plate 120 with to provide a front extension 120a, as shown in phantom in FIG.

The plate 120 shown extends from the front of the Container 16O to the rear of the vehicle and extends parallel to the waterline 130t so that they are under a constant Distance below the flat bottom of the guide device 118 is. This construction allows flow through 132 between the plate and the guide device of essentially constant vertical cross-section * alternative constructions however, are possible. One possibility is to place the plate opposite the vehicle surface to arrange that they diverge from one another along the length of the vehicle. As a result, a throughflow 132 is formed by itself progressively increasing height along the length of the vehicle, thereby increasing the ingress of floating matter in the container rather increased than the downforce on the entire route.

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The minimum distance the leading edge of the plate 120 below the conveyor belt and the storage device is chosen so that at least approximately the entire, from the Tranaport lower belt Entrained floating matter can enter the flow 132. Generally, on the other hand, the spacing is kept to a minimum so that the plate is slightly above it the lower edge of the floats 126 and 128 is located. as Guide values for the distance are preferably 10 - 30 cm apply to a vehicle of approx. 12 m length. To collect and conveying different types of floating matter at different times Weather and water conditions can make it desirable be to mount the plate 120 to achieve an optional movement in order to be able to raise or lower it and to effectively close the container bottom by pulling the plate against the guide or damming device, or the To change the angle of the plate with respect to the vehicle 110 «,

The arrangement of the plate 120 also isolates the Collection tank 116 against currents that strive to to mix with the collected and stored floating matter. The plate thus blocks the forward movement of the vehicle sideways currents that can occur when maneuvering. The plate is also effective against currents that occur during the forward movement of the vehicle 110 and during rolling and pitching of the ship in heavy seas. It is sometimes desirable to use the container in heavy seas in these Way to close - unlike previous floating material intake facilities - so that the device according to the invention can also be used in heavy seas. this happens characterized in that in the device according to the invention, the floating substances to be absorbed are first immersed and they

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be collected completely isolated from the shaft surface.

It is obvious that the facilities explained above work effectively in the manner set forth in the specification. Since various modifications in the above constructions, without departing from the scope of the invention, are all in the above description or in the Characteristics reproduced in the drawings are only intended as explanatory aids and not to be regarded as limitations of the scope of protection.

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Claims (18)

222,635 claims 1.! Device for picking up floating materials from the surface of a liquid, characterized by means (lh, 62, 88) for endless material transport, consisting of an upper belt (48, 62, 88) and a lower belt (12, 70, 90) , which extend between two horizontally separated points (28 »305 6k, 66) , wherein from the first point (28, 6h) to the second point (30, 66) the lower belt is inclined obliquely downward in the running direction and its dimension decreases the horizontal distance between the first and second locations is a substantially horizontal plane; by drive means for carrying out the transport, the movement of the lower belt from the first point to the second taking place; by carrying and supporting elements (28, 30, 32, th century) which hold the lower belt (12) at the first point above and at the second point below the liquid level; and through a material collecting container (18, 72, 92) the vertical side walls of which extend from above the liquid level to below this and on which the carrying and supporting elements are mounted on the side of the second location and the one floating matter throughflow opening at its bottom beyond the second point, which is arranged for a material entry by floating the floating matter after loosening from the lower belt immediately behind the second point * 2. Device according to claim 1, characterized in that that the lower belt for the material transport compared to the 209853/0646 Horizontal tilted at an angle between 10 and 35 degrees is. 3. Device according to claim 1, characterized in that that another belt is provided for the material transport, which is almost lower than the second point. extends right upwards and covers part of the circumferential walls of the collecting container forms. k. Device according to claim 1, characterized in that a further belt is oriented upwards, which extends from the second point between the first belt and the second belt and that further transport cleaning members are arranged in the container which carry that carried upwards by the belt Strip off swimming material. 5. Device according to claim 1, characterized in that the band which runs through behind the second point, extends upwards to above the liquid level » 6. Device according to claim 1, characterized in that the opening in the collecting container is a floating material-permeable Leit- or damming device (56, 118) comprises, the prevents turbulent fluid flow through the opening. 7. Device according to claim 6, characterized in that the guide or damming device has a lower, substantially has horizontal surface which is arranged at the level of the sub-band at the second point. 8. Device according to claim 1, characterized in that 209853 / 06AS that the guide or stowage device has a lower, essentially has horizontal surface which is arranged at the level of the sub-band at the second point. θ. Device according to claim 1, characterized in that that first and second guide walls on the support elements are mounted, which are closed next to the sides of the material transport between the first and the second Place and extend from above the liquid level to below the part of the material transport. 9. Device according to claim 1, characterized in that that the material collecting container (116) has a funnel-shaped Has shape whose smallest horizontal cross-sectional area is at the top of the collecting container. 10. Device according to claim 9 »characterized in that that pumps are connected to the container, by means of which at least the liquid floating matter from the container above the liquid level is withdrawn. 11. Device according to claim 1, characterized in that that stowage elements are provided under the container opening, which extend at least across the opening and which allow the floating matter to pass through against the container opening Shield liquid flows, however. 12. Device according to one of the preceding claims, characterized by being transverse to the distance between the two Provide extending boundary walls that are free of parts below the sub-belt. 9853/0646 13 · Device according to claim 12, characterized in that a second guide device for diverting turbulent Currents are provided from the container opening, which extend transversely to the distance between the two locations and at a distance below the first stowage or guide device and the lowermost layer of the lower belt at the second point lie and form openings that allow the floating matter to flow from below the second point to the second Allow baffles or guiding elements. 14. Device for skimming off floating materials from a water surface and collecting the same, characterized by a first roller with an axis of rotation above the water level, a second roller whose axis of rotation is parallel and at a certain distance from the first, and of which at least part of its surface is below de-water level and its lower horizontal tangent is below the lower horizontal tangent of the first Roller is located, an endless material transport element, which is carried by the rollers, means for driving at least one of the rollers so that the lower belt of the material transport members moves downwards from the first roller to the second roller, one following from the surface of the water downwardly extending collecting container, the closed side walls of which extend below the water level and the bottom openings for the entry of floating material * where the second roller is arranged in the container in such a way that the transported from the water surface downwards to the second roller Floating matter through the bottom openings of the container up to the water surface bounded by the container walls float and guide elements are provided to block turbulent flows in the container through its bottom openings are. 209 8 5 3/0646 2226638 15 · A method for collecting floating matter from a liquid, characterized in that the floating matter is exposed to hydrostatic and hydrodynamic pressure under a downwardly inclined conveying surface which has a front end above the liquid level and a rear end below the liquid level and which has a the front end to the rear end is driven relative to the liquid, thereby collecting the floating material from the surface and conveying it under the conveyor surface towards the rear end, the floating material at the rear end being collected in this by floating through the bottom openings of a collecting container ₀ 16. The method according to claim 15 »characterized in that the liquid flows at the collecting container and calmed be derived. 17. The method according to claim 16, characterized in that that the floating material is stripped off the conveyor after it has passed through the rear end of the conveyor » 18. The method according to claim 17 »characterized in that that liquid flows are prevented from entering "the container openings. 19 · The method according to claim 17 »characterized in that that the container-bottom opposite the liquid flows, which are horizontal and transverse to the distance between both ends run along the conveyor surface, is isolated. 209853/0 64 Blank page