MORE BELUFTUNGSPROPELLER

The invention concerns a Belü£tungspropeller with air sucking in by the hollow propeller shaft and Lu£taustritt in the Rotafionsbereich of the Prope! lerflügel, in particular for the AuPoereitung of liquid manure in a tank. It is already well-known to use large containers, for example in Erform, for the outer riding of biological liquid manure, which is odorless and very plant friendly, in which the liquid manure is rolled over by means of a propeller and ventilated at the same time. The propeller is propelled hiebei with the help of an electric motor, which is taken up at the liquid manure container above and is connected with the hollow propeller shaft, which at their lower, until close dern tank bottom carries handing end the propeller blades. In order to ensure an optimal Auf'bereitung of the liquid manure in a container it to ensure is necessary to roll this liquid manure over not only but also for it that in finely distributed form air is supplied to the entire BehälterirLhalt evenly. Those so far admitted ventilation propellers could not these conditions not in satisfactory way erf'üUen. The invention placed itself to the task to be avoided and a ventilation propeller of the initially described kind be created these disadvantages, with soft both an optimal circulation and an optimal ventilation of the liquid manure in a container od.dgl, be obtained can. According to invention ventilation prop. of you hiezu two propeller blades exhibit, from which everyone one exhibits itself parallel to the axle that boss arranged, thus essentially perpendicular-standing surface and per from this surface an outgoing, toward to in each case the back tapering different wings, whereby in the two parallel to the axle that is intended boss arranged surfaces of the two wings and in direct proximity that boss per a breather, which holes with the hollow propeller shaft over a central recess of the hub communicates. The training according to invention of the ventilation propeller causes egg gentle rolling and Durchrühren of the liquid manure over, whereby air supplied by the Belü£tungsloch wing is divided with the turn of the propeller by the other wing into smaller air vesicles, which mix themselves intimately over entire tank capacity with the Janche. It does not have itself shown that a smashing of the Behältefinhaltes, like it with application to that so far admitted of ventilation propellers took place, for the outer riding of the liquid manure od.dgl, by any means favorable is, but that rather fulling of tank capacity taking place at rotation of the erf'mdungsgemäßen Belü£tungspropellers results in the case of simultaneous mixture of the same with small, finely distributed bubbles a outstanding processing of the liquid manure. In accordance with a further Ausf'ührungsform of the invention the propeller and the hollow prop. of you wave are solvable with one another in connection, whereby a splint pin hole is intended for the attachment of the propeller on the hollow pro pellet wave. In this way a simple and connection reliable in service between the propeller and the hollow PropeUerweUe is guaranteed. Further it is of advantage, if according to invention parallel to the axle the arranged surfaces the broadest part of the wing form boss for that and if in each case from such a surface of the wing outgoing reaches itself, toward back tapering to the other wing up to the surface of this other wing. In accordance with a preferential execution form of the invention one halfspherical recess each is intended in parallel to the axle of the Propellemabe the arranged surfaces of the wings. From this halfspherical recess a suction results at the discharge position of the breather, whereby the supplied amount of air is increased, which is interfered in the form of blisters by the propeller blades into the liquid manure. The circular range of the halfspherical recess rises up hiebei appropriately to close to the außeren extent of the propeller blade. In the designs the ErfVmdung is schematically illustrated on the basis of Ausfiihrungsbeispielen. Fig.1 shows a Belüßungspropeller according to invention in side view and Fig.2 in perspectively inclined/slanted under-face. Fig.3 represents a further execution form of a ventilation propeller according to invention in plan view, partly on average. The propeller according to invention --10-- a hub points --12-- up, those at the free end of a hollow propeller shaft --11-- is removable fastened. This Prope! ierwelle --11-- hiebei is propelled engine not represented by an actually well-known, whereby she intersperses this engine and with the atmosphere in connection is located. The hub --12-- a bag drilling points --15-- up, which takes up the free end of the hollow propeller shaft. To the attachment of the propeller --10-- on the hollow PropellerwelIe --11-- is in the hub --12-- a splint pin hole --16-- planned, which with an appropriate drilling of the propeller shaft swore. An actually well-known split pin is put by this splint pin hole, so that the propeller drehfest, but is removable connected with the propeller shaft. At the hub --12-- on each other opposite places are two wings --13, 14-- angeformt. Everyone this wing points one parallel to the axle to that boss --12-- arranged, thus essentially perpendicular-standing even surface --20, 21-- up. In each of these surfaces --20, 21-- is a Belü£tungsloch --17 and/or 18-- planned, which is in direct proximity of the hub. Each breather is over a channel with the cavity --19-- the hollow propeller shaft connected, so that air with the rotation of the Prope, zugefiihrte over this hollow propeller shaft! lers --10-- from the breathers --17, 18-- withdraws. The surfaces --20, 21-- form the thickest part of each wing. Outgoing from these surfaces each wing points itself toward to in each case the Rückentell tapering different wings --22-- up. The propeller --10-- is appropriately einstückig from plastic or made of injection moulding. With rotation of the hollow propeller shaft propelled by the engine --11-- and thus the propeller --10-- contents of the container, in which the propeller is assigned, are kept continuing in motion. By the hollow propeller shaft standing with the atmosphere in connection --11-- air penetrates, which is sucked downward and through the breathers --17, 18-- in the surfaces --20, 21-- the wing --13, 14-- withdraws. This withdrawing air forms bubbles, which by the descriptive form of the propeller blades in tank capacity for example formed by liquid manure --13, 14-- during the turn of the propeller to smaller air vesicles to be smashed. In order to obtain this effect, the propeller in such a direction must rotate that the bubbles withdrawing from the breather propeller blade are aufpraUen on the back in each case of the different propeller blade and by this back into small air vesicles divided. The descriptive impact ensures a circulation of tank capacity from top to bottom. This circulation can be still increased, if an egg-shaped container use finds. With the Ausf'ührungsform after Fig.3 are at the hub --26-- two each other opposite wings --27, 28-- angeformt. The boss --26-- becomes hiebei by means of screws --29-- drchfest with the hollow propeller shaft --30-- connected. Also with these Auff'ührungsform points each of the two wings --27, 28-- one parallel to the axle of the prop. of you hub --26-- running surface --35, 36-- and of this surface an outgoing, itself toward to in each case the back tapering different Fltigel up. In the surfaces --35, 36-- are again with the hollow propeller shaft --30-- communicating breathers --31, 32-- planned, whereby however with this execution form of each of the two wings represented in Fig.3 --27, 28-- in the surfaces --35 and/or 36-- a halfspherical recess --33 and/or 34-- exhibits, in that the breathers --31, 32-- are arranged. The circular range of each recess --33, 34-- rises up to close to the outside extent of the propeller blade. By the arrangement of the halfspherical recesses --33 and/or 34-- a suction is obtained, one increased sucking in of air by the breathers --31, 32-- caused, whereby the ventilation and the Quirleffekt in the container, obtained by this ventilation, are improved.