ES2400209B1 - MIXING DEVICE - PICADOR FOR LARGE PRODUCT VOLUMES - Google Patents

Abstract

Mixing device - chopper for large volumes of product, comprising: - an upper cavity (1) for storing the products to be chopped and mixed; - a lower cavity (2) of chopped and mixed in which there are augers (7) rotating at low revolutions; - a separating surface (3) between the upper cavity (1) and the lower cavity (2), provided with holes (4) slightly larger than the diameter of the shaft (11) of the augers (7) and one or more several control gates (5) for the passage of the products to be mixed and chopped from the upper cavity (1) to the lower cavity (2) and; - trailing arms (6) on the rotating augers (7) on the regulating gates (5).

Description

MIXING DEVICE -PICADOR FOR LARGE VOLUMES OF PRODUCT.

Object of the invention

The present invention relates to a chopper mixing device for large volumes of product, with which it is possible to reduce the power required for mixing and energy consumption in obtaining

of homogeneous mixtures.

Field of application of the invention.

This device is applicable in the manufacturing sector of biogas plant digester feeding devices, in the manufacturing sector of chopper cars for feeding cattle and in delivery cars.

Background of the invention.

Large capacity mixer and chopper cars with vertical system for animal feed products and biogas plants are known. These cars work under a high pressure on the augers that prevents the correct mixing of the products and consume a large amount of energy; They also generate significant wear of their internal parts.

The weight of the product mix itself makes the pressures on the augers prevent them from correctly performing their mixing work and achieving the desired uniformity with moderate energy consumption.

An alternative to reduce the wear on the augers and reduce the power consumed in the chopping and mixing process is to reduce the size of the augers, causing an increase in the time required for the chopping and mixing of the materials, obtaining a

minimal improvement Another alternative to consider is the preparation of mixtures of lower capacities, having the disadvantages of excess of

displacements (in the case of delivery cars) and high costs in

labor force due to the need to prepare a greater quantity of

mixtures (in the case of plants for feeding biogas digesters). Therefore, it is the object of the present invention to resolve the

previous problems of excess time and energy to achieve the chopped and the mixture, as well as the costs produced, developing a set like the one described below and whose essential characteristics are included in the first claim.

The applicant of the present invention is unaware of the existence

background that satisfactorily solve the problem

exposed.

Description of the invention

The mixer-chopper device for large volumes of product, object of this invention has some technical peculiarities intended to perform three different functions: on the one hand, the graduation of the passage of products from one cavity to another; on the other hand, the function of mixing and chopping the products in less time than when using

mixing and chopping devices of large conventional volumes; and by

last, the increase in the capacity of the device; all this, with an important energy saving and a reduction of the pressures and breakdowns of the augers and other parts.

Another object of the invention is the realization of a device

Mixer-chopper for large volumes of product, keeping the

Advantages of preparing quick mixes with reduced energy consumption. This mixer-chopper device is of the type that includes a hopper that internally has mixing augers

and chopped product.

According to the invention, the hopper comprises: -a superior storage cavity of the products to be chopped and mixed, -a lower cavity of chopped and mixed in which

they are housed the rotating augers at low revolutions, commissioned

chop and mix the product.

-

a separating surface, disposed between the upper cavity

and the lower cavity, and provided with at least one product passage

towards the lower cavity and of one or several gates regulating the passage

of product into the lower cavity,

-

rotating trailing arms for moving the product contained in the upper cavity towards the passageways provided with regulating gates,

-

And at least one drain gate outside the mixture

prepared in the lower cavity. In this way the product to be mixed and chopped is not directly disposed against the rotating augers, but these are

performing its work with a certain amount of product, which has passed from the upper cavity to the lower cavity. This is necessary a

less power to spin these augers, with the corresponding

energy saving and the reduction of pressures on said augers and other parts of the hopper.

In one embodiment, the drag arms are fixed on the

upper part of the rotating augers, more specifically at the end of

its axis, for its simultaneous rotation. In an alternative embodiment, said drive arms are connected to an independent drive motor.

In a preferred embodiment, the device comprises in the lower cavity a group of fine chopping and a forwarding tube, which in function

from its orientation the finely chopped product returns to the upper cavity to

Repeat the process or out of the device. With this group of finely chopped it is possible to chop the

product in very small portions, ideal for use in a plant

biogas The return tube of the product finely chopped from the cavity

lower to the upper cavity, allows recirculation of the

product being processed. This forwarding can be carried out from

different forms, for example by means of an inner lifting auger, a cyclone or another mechanism.

Thus, the operation of the device is as described below: once the system is started up, it is loaded from the top while the products are incorporated into the lower cavity by the gate of the separating plate. Once the lower part is filled, the gate is closed and the upper part of the product is completed.

In the lower cavity, the augers perform their work of cutting, chopping and

feeding of a device of finely chopped, in case the mixer

The chopper has said fine chopping device, until the mixture is homogeneous and simultaneously the gate from the upper to the lower cavity can be used in two different ways:

gradually, so that the product is gradually introduced from the upper cavity to the lower cavity, at the same time that the mixture is discarded outward or sent back to the upper cavity as it homogenizes.

Instantly, once the

mixture in the lower cavity is evicted from this mixture by the

drain hole and then the floodgates open until it is

complete the lower cavity again. In this way the device can prepare a mixture

determined (same products and proportions) of products in both cavities, to the extent that the lower cavity has chopped and homogenized

all products are extracted through the return tube in the

same measure that the products of the upper cavity pass to the lower one. keeping the latter always the same capacity. In one embodiment, the device comprises means of

that allow it to be used as a delivery car and that makes its arrangement possible

in places of use, either as a feeder in a plant

biogas or livestock feed. In the latter case the device will

You can build for both vertical feed and horizontal feed.

Description of the figures.

To complement the description that is being made and in order to facilitate the understanding of the features of the invention, a set of drawings is encamped herein in which, for illustrative and non-limiting purposes, the following has been represented:

Figure 1 shows a sectioned profile view of the

device of the invention provided in this case with a group of finely chopped and

of a forwarding tube. Figure 2 shows a surface plan detail

separator between the two upper and lower cavities.

Figure 3 shows a plan view of the lower cavity.

Figure 4 shows a plan view of a drag arm fixed at the upper end of the shaft of an auger.

Preferred Embodiment of the Invention

In view of the aforementioned figures, a preferred embodiment of the invention is set forth. The case represented in the figures is concrete, although not limiting.

Figure 1 shows that the mixer-chopper device

for large volumes of product, it is formed in a hopper divided by a separating surface in an upper cavity (1) for the

product storage, and in a lower cavity (2), this separating surface (3) has at least one product passageway towards the lower cavity (2) and of one or several gates (5) regulating the passage of the product to through said mouth.

The lower cavity (2) has augers (7) arranged vertically and facing each other with holes (4) made in the separating surface (3). These augers (7) rotate at low revolutions to chop and mix the product until a completely homogeneous mixture is achieved.

The chopped and homogenized product can be extracted by the gate (10).

In the event that the device has a fine chop group (8), as shown in figure 1, the augers (7) circulate the product through the lower cavity and the cutting discs of said chop group fine (8) pass it through the grooves (13) to the forwarding tube (9), which depending on its orientation returns the chopped products to the

upper cavity (1) to repeat the process or to the outside of the device. Each of these augers (7) has drag arms

(6)

fixed on the upper part of the shaft (11) of said auger (7). These drag arms (6) are arranged above the separating surface (3). These drag arms (6) rotate at the same speed as said augers (7), being able to drag the product stored in the upper cavity (1) until it precipitates through the mouth and the regulating gate (5).

The lower cavity (2) is provided with a settling zone

(12)

of stones and large elements that are extracted outwards by means of a gate (10). This gate (10) opens

normally about 15 to 20 centimeters to eject the stones. and if necessary, to perform the complete emptying of the lower cavity.

Figure 2 shows the separating surface (3) with 105 holes (4), which are larger than the axis (11) of the augers as well

like a mouth with its regulating gate (5). All of them arranged for the passage of products from the upper cavity (1) to the lower cavity (2) of the

device.

Figure 3 shows the augers (7) and the gate (10) that allows both the extraction of waste (stones and large elements

5 size) accumulated in the decantation zone (12), such as the extraction of

chopped product in the lower cavity.

Figure 4 shows the drag arm (6), fixed to the upper part of the shaft (11) of the auger (7), used to push the products towards the regulating gate (5) that connects the upper cavity (1) and the

10 lower cavity (2). These drag arms (6) rotate at the same revolutions as the augers (7) to which they are fixed. It does not alter the essentiality of this invention variations in

materials, shape, size and arrangement of the component elements,

described in a non-limiting manner, it is sufficient for reproduction by a

15 expert.

Claims (5)

1.-Mixing device -pinker for large volumes of product, of the type comprising a hopper that internally has augers (7) for mixing and chopping the product, characterized in that said hopper comprises: - an upper cavity (1) for storing the products to be chopped and Mix, -a lower cavity (2) of chopped and mixed in which the augers (7) rotating at low revolutions, - a separating surface (3), arranged between the upper cavity (1) and the lower cavity (2), and provided with at least one product passage to the lower cavity (2 ) and one or more regulating gates (5) of the product passage into the lower cavity (2);

-

rotating drag arms (6), for moving the product contained in the upper cavity towards the passageways provided with regulating gates (5). -at least one gate (10) for the extraction of stones and elements of

large size and / or emptying of the lower cavity. 2. Device according to claim 1, characterized in that the drag arms (6) are fixed at the top of the augers (7)  rotating 3. Device, according to any of the preceding claims, characterized in that the drag arms (6) are connected to a motor  drive independent. 4. Device according to any of the preceding claims, characterized in that it comprises in the lower cavity a chopping group Fine (8) of the product. 5. Device according to any of the preceding claims, characterized in that the hopper comprises a tube (9) for returning the finely chopped product from the lower cavity (2) to the upper cavity (1). 6. Device according to any one of the preceding claims, characterized in that it comprises means of carriage-type travel delivery man.