CN213103213U - Winnowing device for separating light impurities from grains by utilizing horizontal airflow - Google Patents

Abstract

A winnowing device for separating light impurities from grains by utilizing horizontal airflow is characterized in that: the device comprises a box body with a square box structure, a material homogenizing box, a grain collecting hopper with an inverted cone-shaped discharge port and a light impurity depositing hopper with an inverted cone-shaped discharge port, which are sequentially arranged in the box body from left to right in a mutual communication mode, wherein a flow regulating valve and a hopper are arranged on a feed inlet at the top of the material homogenizing box; the upper edge opening of the rectangular through hole is provided with a horizontal rectification guide plate which extends into the inclined material flow channel and plays a role in rectification, and the flow channel wall plate positioned right opposite to the rectangular through hole is a guide plate with a concave arc structure.

Description

Winnowing device for separating light impurities from grains by utilizing horizontal airflow

Technical Field

The utility model relates to the separation problem of light and miscellaneous among the unprocessed grain before grain processing, before putting in storage of trades such as grain processing factory, grain warehouse belongs to grain processing, storage technical field. The device is installed in a cleaning workshop and used as an independent device. The device body does not need power, and utilizes the ventilation air flow from the dust removal air net to capture and separate dust and light impurities, particularly stalk impurities in the grains.

Background

Before processing or warehousing and storing, the grains are subjected to a series of cleaning processes to clean various impurities mixed in the grains. Particularly, light impurities mixed in grains, such as soil, fine scraps of grains, shells, stalks and the like, are firstly removed, because the impurities not only cause dust flying in the cleaning and conveying processes and pollute the environment, but also easily cause the blockage of pipelines or equipment.

Most of the existing winnowing equipment is vertical airflow separation in principle. That is, grains enter the air duct of the vertical air flow, light impurities such as soil and fine scraps are upwards taken away by the air flow along with the air flow, and heavy materials such as grain particles are settled in the vertical air flow, so that the separation of the light impurities and the grains is realized. The separation method has high separation efficiency for separating light impurities such as dust, husk and the like with obvious quality difference with wheat particles, but the separation efficiency for the stem impurities with different lengths is greatly reduced, even the impurities can not be separated, or the separated impurities contain a large amount of grain particles. The utility model discloses be exactly to current winnowing equipment not enough, develop a novel air current separation device, various light miscellaneous in the high efficiency separation grain, especially various stem stalk class impurity, the light miscellaneous that wind chooseed out moreover does not need air pipe to carry the dust remover, subsides on the spot, has both reduced the volume of induced drafting of dust removal wind net, has improved light miscellaneous separation efficiency again.

Disclosure of Invention

The utility model aims at providing a winnowing device which utilizes horizontal airflow to separate light impurities in grains aiming at the defects existing in the prior art. The utility model discloses a wind selector utilizes the light miscellaneous in the horizontal air current selection by winnowing grain, especially stem stalk class impurity, and the light miscellaneous of isolating subsides on the spot moreover, does not need to carry the dust remover of dust removal wind net through air pipe, both saves the amount of wind, and the energy saving consumes again.

The purpose of the utility model can be realized by the following technical measures:

the utility model discloses an utilize wind selector of light miscellaneous in horizontal air current separation grain includes the box that is square chest type structure, even workbin, the discharge gate is grain collection hopper that the back taper structure, the discharge gate is light miscellaneous deposit fill that the back taper structure is set gradually in the box from left to right in the mode of intercommunication each other, be provided with flow control valve and hopper on the feed inlet on even workbin top, install the valve on the inlet scoop at light miscellaneous deposit fill top, be provided with light miscellaneous regulation flashboard at grain collection hopper and light miscellaneous deposit fill intersection position, set up the rectangle through-hole that is used for installing the air inlet case on the oblique material runner that even workbin and grain collection hopper are linked together; the upper edge opening of the rectangular through hole is provided with a horizontal rectification guide plate which extends into the inclined material flow channel and plays a role in rectification, and the flow channel wall plate positioned right opposite to the rectangular through hole is a guide plate with a concave arc structure.

A < shaped structure is formed between the material homogenizing box and the inclined material flow passage; an air inlet for air separation airflow to enter the air inlet box is arranged downwards at the far end of an air outlet of the air inlet box, an air outlet channel of the air inlet box is arranged in a horizontal mode, the air outlet is positioned below the horizontal rectification guide plate, and a bottom plate of the air outlet horizontally extends out of the air outlet.

The utility model has the advantages as follows:

firstly, the utility model discloses a wind selector carries out the separation of the light and miscellaneous of horizontal air current to grain through the water conservancy diversion motion of organizing grain, the grain that the level flows out under the horizontal air current effect and the friction of the baffle of opposite concave arc structure, waterfall formula after the striking subsides and the tissue of horizontal air current.

② in the utility model discloses an among the wind selector, the light miscellaneous that horizontal air current wind chooseed is done the flat throw motion, subsides in this device is inside, subsides the region that the position is located grain collection hopper one side, consequently does not need high wind speed very much, only need will be done the light miscellaneous level in the grain of vertical landing motion take out can, save the volume of induced drafting.

③ in the utility model discloses an among the wind selector, light miscellaneous settlement zone position is in one side that the hopper was collected to the grain, has light miscellaneous adjusting damper between the two, and the purity of light miscellaneous can be controlled through the regulation of light miscellaneous adjusting damper height from top to bottom.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of fig. 1.

Number in the figure: the device comprises a hopper 1, a flow regulating valve 1-1, a refining box 2, a horizontal rectification guide plate 2-1, a guide plate with a concave arc structure 2-2, an air inlet box 3, an air inlet 3-1, an air outlet 3-2, a bottom plate 3-3, a grain collecting hopper 4, a light impurity regulating gate plate 5, an air suction opening 6, a valve 6-1, a light impurity depositing hopper 7 and grains 9.

Detailed Description

The invention will be further described with reference to the following examples (drawings):

as shown in fig. 1 and 2, the winnowing device for separating light impurities from grain by using horizontal airflow of the present invention comprises a box body in a square box structure, a refining box 2, a grain collecting hopper 4 and a light impurity depositing hopper 7, wherein the refining box 2, the grain collecting hopper 4 and the light impurity depositing hopper 7 are sequentially arranged in the box body from left to right in a mutual communication manner, the discharge port is in an inverted cone structure, the feed port at the top of the refining box is provided with a flow regulating valve 1-1 and the hopper 1, an air suction port 6 at the top of the light impurity depositing hopper 7 is provided with a valve 6-1, a light impurity regulating flashboard 5 is arranged at the intersection position of the grain collecting hopper 4 and the light impurity depositing hopper 7, and a rectangular through hole for installing an air inlet box 3 is arranged on an inclined material flow channel communicated with the refining box 2 and the grain collecting hopper 4; a horizontal rectification guide plate 2-1 which extends into the obliquely-arranged material flow channel and plays a role in rectification is arranged at the upper edge opening of the rectangular through hole, and a guide plate 2-2 with a concave arc structure is arranged on a flow channel wall plate which is positioned right opposite to the rectangular through hole.

A < shaped structure is formed between the material homogenizing box 2 and the inclined material flow channel; an air inlet 3-1 for air separation airflow to enter the air inlet box is arranged downwards at the far end of an air outlet 3-2 of the air inlet box, an air outlet channel of the air inlet box is arranged in a horizontal mode, the air outlet 3-2 is positioned below the horizontal rectification guide plate 2-1, and a bottom plate 3-3 of the air outlet 3-2 horizontally extends out of the air outlet 3-2.

The working principle of the utility model is as follows:

when the device of the utility model is operated, grain 9 enters into the hopper 1 through the grain chute or other devices, and the flow regulating valve 1-1 is arranged below the hopper 1, so that the grain flow entering into the homogenizing box 2 is proper. Grains flow through the two diversion in the material homogenizing box 2 uniformly in a certain thickness in the whole width direction of the winnowing device, and flow out in the horizontal direction through the rectification action of the horizontal rectification guide plate 2-1 at the discharge port of the material homogenizing box 2. Grain flowing out in the horizontal direction impacts the guide plate 2-2 of the concave arc-shaped structure right in front, and under the action of collision, friction and the like between the grain and the guide plate of the concave arc-shaped structure, the grain guide plate can play a role in sealing, prevent induced air from flowing from the grain, remove light impurities such as soil adhered to the surface of the grain, reduce the flowing speed of the grain, and uniformly fall in a waterfall shape after colliding with the guide plate 2-2 of the concave arc-shaped structure.

The winnowing airflow enters the air inlet box 3 from the air inlet 3-1 from bottom to top and horizontally flows out from the air outlet 3-2. The air outlet 3-2 is positioned below the horizontal rectification guide plate 2-1 at the discharge port of the material homogenizing box 2. The bottom plate 3-3 of the air outlet 3-2 exceeds the air outlet 3-2 by a certain length, and has a horizontal rectification function on the winnowing airflow, so that the airflow blown out from the air outlet 3-2 is ensured to be horizontal airflow. The horizontal winnowing airflow enters into a grain waterfall layer with uniform thickness, various light impurities in the grains are taken out under the aerodynamic action of the horizontal airflow, and the grain particles continue to settle and fall into a collecting hopper 4 below. The light impurities brought out by the horizontal airflow continue to move horizontally, because the air suction opening 6 is positioned at one side of the collecting hopper 4, and because the horizontal sectional area of the light impurities depositing hopper 7 below the air suction opening 6 is larger and the sectional air speed is low, the light impurities brought out by the horizontal airflow are settled in the area and fall into the light impurities depositing hopper 7, and the airflow enters the pipeline of the dust removing air net through the air suction opening 6. The air quantity and the air speed of the winnowing airflow can be adjusted through a valve 6-1 on an air pipe above the air suction opening 6.

Under the aerodynamic action of the horizontal winnowing airflow, light impurities in the grains which do sedimentation movement are carried out to one side of a grain flowing area by the horizontal airflow, and light impurities such as fine scraps, shells and the like are accelerated by the horizontal airflow to move quickly and far; various stalk impurities are accelerated by horizontal airflow to be slow and run close, and the stalk impurities are subjected to aerodynamic force change due to the continuous change of the self orientation of the stalk impurities in the movement, so that the stalk impurities do horizontal throwing movement under the action of the aerodynamic force. In addition, in the device, the air flow passing through the grains immediately turns horizontally and moves vertically upwards, and the speed of the air flow is reduced to a certain extent, so that the device is more favorable for settling various light impurities moving along with the air flow.

The light impurity adjusting gate 5 arranged between the grain collecting hopper 4 and the light impurity settling hopper 7 can be adjusted up and down to control the purity of light impurities entering the light impurity settling hopper 7 and carry no grain particles as much as possible.

Claims (3)

1. A winnowing device for separating light impurities from grains by utilizing horizontal airflow is characterized in that: the device comprises a box body with a square box structure, a material homogenizing box (2), a grain collecting hopper (4) with a discharge port in an inverted cone structure, and a light impurity depositing hopper (7) with a discharge port in an inverted cone structure, which are sequentially arranged in the box body from left to right in a mutual communication manner, wherein a flow regulating valve (1-1) and a hopper (1) are arranged on a feed inlet at the top of the material homogenizing box, a valve (6-1) is arranged on an air suction port (6) at the top of the light impurity depositing hopper (7), a light impurity regulating flashboard (5) is arranged at the intersection position of the grain collecting hopper (4) and the light impurity depositing hopper (7), and a rectangular through hole for installing an air inlet box (3) is formed in an inclined material flow channel communicated with the grain collecting hopper (4) by the material homogenizing box (2); a horizontal rectification guide plate (2-1) which extends into the obliquely-arranged material flow channel and plays a role in rectification is arranged at the upper edge opening of the rectangular through hole, and a guide plate (2-2) which is in a concave arc structure is arranged on a flow channel wall plate positioned right opposite to the rectangular through hole.

2. The winnowing device for separating light impurities from grains by using horizontal airflow according to claim 1, wherein: the material homogenizing box (2) and the inclined material flow passage form a < shaped structure.

3. The winnowing device for separating light impurities from grains by using horizontal airflow according to claim 1, wherein: an air inlet (3-1) for air separation airflow to enter the air inlet box is arranged downwards at the far end of an air outlet (3-2) of the air inlet box, an air outlet channel of the air inlet box is arranged in a horizontal mode, the air outlet (3-2) is positioned below the horizontal rectifying guide plate (2-1), and a bottom plate (3-3) of the air outlet (3-2) horizontally extends out of the air outlet (3-2).

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