HU194748B - Apparatus for mixing materials primarily for mixing fodder - Google Patents

Abstract

The equipment for mixing fodder has a dosing chute on a housing and two interconnected screw conveyors with outlet opening on their ends. The equipment has a pore-mixing spreader disc underneath the dosing chute. The shafts of the two screw conveyors are shifted against each other, the helical strip of the higher location screw conveyor is interrupted and provided with blades. The blades of the higher position screw conveyor intrude into the helical strip of the lower screw conveyor.

Description

The present invention relates to an apparatus for mixing materials, in particular for feed mixing, having a housing, a feed hopper and two conveyor screws connected at the bottom of the housing, and an outlet opening at their ends.

Known apparatus for continuous mixing of sludge, in particular aqueous sediment, is disclosed in German Patent Publication No. 3000329, which utilizes a worm and a dry cell feeder for a wet substance feeder, and another screw is connected, the two screws having separate outputs provided.

The disadvantage of the solution is that the drier the material, e.g. it is about mixing granular materials, the higher the throughput, the mixing resistance, the harder the mixing is, the higher the mechanical stress of the device, it uses more energy, is easier to block and cannot be used in batch mode, quality, materials that are difficult to mix, cannot be reasonably mixed because they do not pre-mix, have low performance, have limited applicability, and are complex in construction.

SUMMARY OF THE INVENTION The object of the present invention is to eliminate the aforementioned deficiencies, i.e. to provide a device for mixing materials, in particular feed mixing, which provides simple, inexpensive, always desired quality and performance mixing of materials of any desired condition has an installable structure.

It is an object of the present invention to ensure that the conveyor screws are arranged as close as possible to one another and the mixing takes place in the desired quality.

The object of the present invention is to solve the problem of the device mentioned in the introduction by providing a pre-mixing spreader disc in the housing under the metering hopper, the axis of the conveyor screws being offset relative to one another, interrupting the higher conveyor belt blades. are arranged between the conveyor belts of another conveyor.

In order to ensure homogeneity of the blend, an embodiment in which the blades and / or the belt are formed with a puncture is preferred.

In order to prevent the build-up of material to be mixed, thereby ensuring complete mixing, it is desirable to have an embodiment in which the bottom of the housing is formed as a trough fitting to the conveyor screws.

In order to ensure premixing and to spread the material to be mixed in a spreading manner, it is possible to have at least a portion of the upper part of the housing formed obliquely in the form of a leaflet.

In order to increase the efficiency of the mixing, i.e. to achieve the desired homogeneity, it is preferable to have an embodiment in which the closure element is arranged in the metering hopper and / or outlet.

The invention will now be described in more detail with reference to one embodiment of the invention in the drawing. In the drawing it is

Figure 1 is a schematic side elevational view of the device of the present invention; the

Figure 2 is a schematic front elevational view of the device of the invention; the

Figure 3 is a top plan view of a pre-mixing disc of the device according to the invention; and the

Figure 4 is a sectional view A-A from above.

The device according to the invention has a housing (1), on top of which a metering dam (2) is formed.

The bottom (10) of the housing (1) is formed as a trough, in which two conveyor screws (3, 4) are preferably arranged one above the other. It is designed to fit the conveyor screw (4). The conveyor screw (3,4) is rotatably connected to the motor via a motor (14).

At the bottom of the housing (1), an outlet (5) is provided in the trough (10) at the end of the conveyor screw (4). Below the metering hopper (2) in the housing (1) is a pre-mixing spreader (6) arranged separately from the motor (15) in a drive.

The conveyor belt (7) disposed above the conveyor screw (4) is interrupted to form blades, the vanes (7) being disposed extending between the conveyor belt (8).

The blades (7) and / or the strip (8) are formed with a break (9). The upper part of the housing (1) is formed obliquely as a flyer reflecting the material to be blown from the pre-mixer (6).

In the dosing hopper (2) and in the outlet (5), a closure (11) is provided.

On the pre-mixing spreader (6) a plurality of spreader elements (12) are arranged symmetrically and radially. Preferably, the fly element (12) is formed from a strip of sheet by partial bending.

The operation of the device according to the invention will be briefly described below.

Any number of components to be mixed are poured into the dosing container (2) in series or simultaneously. From here, the components are placed on the pre-mixing spreader (6), which, by means of its spreading elements (12), spreads both directly to the conveyor (3) and partly to the wall of the housing (1), but also to the conveyor (3). .

The spreading disc (6) of the pre-mixer pre-mixes the components.

The conveyor screw (3,4) mixes the components in the desired homogeneity by conveying the components to be mixed in the direction of the outlet (5), while the blades (7) formed and rotated in the conveyor (3) part is shipped backwards.

These two counter currents provide the desired degree of mixing.

In order to increase the quality of the mixing, the components move more slowly towards the outlet (5) at breakthroughs (9), so that an additional flow is present. Depending on the mixability of the components, the device according to the invention can be operated through the outlet (5) by continuous dispensing, in which case the closures (11) are open. Alternatively, in the case of difficult-to-mix components, the closures (11) are closed after the components are added, and the conveyor screws (3,4) are actuated alternately forwards and backwards from the motor (13) until the mixture is homogeneous. has reached the desired level. Of course, the pre-mixing disc (6) does not need to be operated. When the mixture has reached the desired homogeneity, it is opened through the outlet (5) by opening the closure (11).

194,748, the components to be mixed are re-introduced through the metering hopper (2) while the closure (11) is opened and the operation is repeated.

The device according to the invention can be quickly, cheaply and economically mixed with any component of the state and condition.

The device (16) of the invention can be mounted with feet so that it can be installed on the scene of the mixing.

Claims (5)

Claims Apparatus for mixing materials, in particular for feed mixing, having a housing, this feeding hopper and two conveyor screws connected at the bottom of the housing, and an outlet opening at the end thereof, characterized in that the housing (1) is premixed under the feeding hopper (2). the spreading disc (6) is arranged, the axis of the conveyor screws (3, 4) is offset relative to one another, the belt conveyor screws (7) of the higher conveyor screw (3) are interrupted, the vanes (7) the other conveyor screw (4) ) are arranged extending between the tape (8). Apparatus according to claim 1, characterized in that the blades (7) and / or the belt (8) are formed with a break (9). Device according to Claim 1 or 2, characterized in that the bottom of the housing (1) is formed as a trough (10) fitting to the conveyor screws (3, 4). 4. Device according to one of Claims 1 to 3, characterized in that at least a portion of the upper part of the housing (1) is formed obliquely to form a leaflet. 5. Device according to any one of claims 1 to 4, characterized in that a locking element (11) is provided in its dispenser (2) and / or outlet (5).