CN214812696U - Grain closed cycle winnowing system - Google Patents
Grain closed cycle winnowing system Download PDFInfo
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- CN214812696U CN214812696U CN202120261917.2U CN202120261917U CN214812696U CN 214812696 U CN214812696 U CN 214812696U CN 202120261917 U CN202120261917 U CN 202120261917U CN 214812696 U CN214812696 U CN 214812696U
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Abstract
A closed-loop circulating winnowing system for grains comprises a winnowing machine, a fan, a cyclone dust collector and an air pipe; the grain channel of the air separator is inclined to the horizontal plane, the feed inlet of the grain channel is arranged above, and the discharge outlet of the grain channel is arranged below; the air inlet and the air outlet of the air separator are respectively arranged on the left side surface and the right side surface of the grain channel; the air outlet of the fan is connected with the air inlet of the air separator, the air inlet of the cyclone dust collector is connected with the air outlet of the air separator, and the air inlet of the cyclone dust collector is connected with the air inlet of the fan; a grain channel of the air separator is internally connected with a flow dividing device, the flow dividing device is close to the feed inlet, and the grain channel at the rear part of the flow dividing device is a dust removing section along the advancing direction of grains; the flow dividing device comprises a plurality of spoilers which are parallel to each other and are sequentially arranged at intervals along the advancing direction of the grains; the angle between the main body of the spoiler and the bottom surface of the grain channel is an obtuse angle; one side of the spoiler is a main body of the spoiler, and the other side of the spoiler is a flow guide side; the flow guide edge of each spoiler is arranged on the advancing path of the grains.
Description
Technical Field
The utility model belongs to the technical field of grain machinery, specifically a closed circulation winnowing system of cereal for grain removes dust.
Background
In the prior art, the grain screening in the raw grain receiving section mainly comprises a screening bed and the like. The mode is not ideal in the effect of cleaning light and small-volume impurities in the grains, and still a lot of small impurities and dust enter the temporary storage bin along with the raw grains and then enter the dryer, which is also one of the important reasons for causing the blockage of the dryer.
SUMMERY OF THE UTILITY MODEL
The technical scheme is that the grain closed-loop circulating winnowing system can be used for secondary cleaning before raw grains enter a temporary storage bin or a dryer, and can effectively clean light impurities and dust, so that the impurity content of the raw grains is greatly reduced. The technical scheme specifically comprises the following steps:
a closed-loop circulating winnowing system for grains comprises a winnowing machine, a fan, a cyclone dust collector and an air pipe;
the grain channel of the air separator is inclined to the horizontal plane, the feed inlet of the grain channel is arranged above, and the discharge outlet of the grain channel is arranged below; the air inlet and the air outlet of the air separator are respectively arranged on the left side surface and the right side surface of the grain channel;
the air outlet of the fan is connected with the air inlet of the air separator through an air pipe, the air inlet of the cyclone dust collector is connected with the air outlet of the air separator through an air pipe, and the air inlet of the cyclone dust collector is connected with the air inlet of the fan through an air pipe;
the grain channel of the air separator is internally connected with a flow dividing device, the flow dividing device is close to the feed inlet, and the grain channel at the rear part of the flow dividing device is a dust removing section along the advancing direction of grains;
the flow dividing device comprises a plurality of spoilers, and the spoilers are parallel to each other and are sequentially arranged at intervals along the advancing direction of the grains; the angle between the main body of the spoiler and the bottom surface of the grain channel is an obtuse angle;
the spoiler is L-shaped, one side of the spoiler is a main body of the spoiler, and the other side of the spoiler is a flow guide side; the flow guide edge of each spoiler is arranged on the advancing path of the grains.
Further: the flow dividing device comprises a box body with a rectangular section;
one end surface of the box body is provided with a top surface opening for connecting the feeding hole; the top surface opening is rectangular, the bottom edge of the top surface opening is superposed with the bottom surface of the box body, the top edge of the top surface opening is arranged below the bottom surface of the box body, and the left side and the right side of the top surface opening are respectively superposed with the left side and the right side of the box body;
each spoiler is identical; the left side and the right side of the spoiler are respectively connected with the left side and the right side of the box body;
the flow guide edges of the spoilers are parallel to the bottom surface of the box body, and the projection of each flow guide edge on the opening of the top surface is a plurality of parallel line segments with the same distance.
The grains flow from top to bottom and are uniformly distributed to the spoilers through the flow guide edges.
The spoilers are identical, with the uppermost spoiler being closest to the top edge of the top surface opening and the lowermost spoiler being furthest from the top edge of the top surface opening. Accordingly, the edge of the main body of the uppermost spoiler is farthest from the bottom surface of the case. According to the flow velocity of the grain, the grain in the uppermost spoiler has the slowest flow velocity and the least kinetic energy, so that the spoiler guides the grain to the farthest end. The grain is more evenly sprinkled under the structure.
The other end face of the box body is open, the dust removal section of the grain channel is connected with the opening in the bottom face of the box body, and the cross section coverage range of the dust removal section of the grain channel is not smaller than that of the box body. The two sections may be identical in view of processing convenience. And the dust removal section has larger space, so that the throwing and dust removal effects are better.
The axis direction of the grain channel forms an angle of 45 degrees with the horizontal direction.
A plurality of through holes are uniformly formed in the left side wall of the grain channel at the dust removal section to form an air equalizing plate, an air equalizing bin is connected outside the grain channel, and the air equalizing plate is positioned at an air outlet of the air equalizing bin; the air inlet of the air equalizing bin is the air inlet of the air classifier.
The effect of this technical scheme does:
the secondary cleaning is carried out after the cleaning sieve, the impurity content of the raw grains is effectively reduced, light impurities and dust are finally sucked away and then are fallen, the uniform collection and treatment are carried out, and the circulating system has the advantages of small resistance, low energy consumption and no pollution.
Drawings
FIG. 1 is a schematic diagram of the present solution;
figure 2 is a schematic longitudinal cross-sectional view of the splitter section of the air classifier of this example;
FIG. 3 is a schematic cross-sectional view of the dust removal section of the grain passageway of this example (the air classifier is shown in a horizontal orientation for clarity);
FIG. 4 is a schematic plan view of the air-equalizing plate;
FIG. 5 is a schematic view of a spoiler;
in fig. 1, the arrows indicate the direction of wind flow; in fig. 2, the arrows indicate the grain flow direction; in fig. 3, the arrows indicate the direction of wind flow;
in the figure: the air separator comprises an air separator 1, a fan 2, a cyclone dust collector 3, an air seal machine 4, an air pipe 5, a flow dividing device 6, a spoiler 7, an air inlet 8 of the air separator, an air equalizing bin 9, an air equalizing plate 10, an air outlet 11 of the air separator, a dust removing section 12, a main body 13 of the spoiler, a flow guide edge 14, a box body 15 and a top opening 16.
Detailed Description
The present disclosure is further described with reference to the following drawings and detailed description:
referring to fig. 1, a closed-loop circulation winnowing system for grains comprises a winnowing machine 1, a fan 2, a cyclone dust collector 3 and an air pipe 5;
the grain channel of the air separator 1 is inclined to the horizontal plane, the feed inlet of the grain channel is arranged above, and the discharge outlet of the grain channel is arranged below; the air inlet 8 and the air outlet of the air separator are respectively arranged on the left side surface and the right side surface of the grain channel;
the air outlet of the fan 2 is connected with the air inlet 8 of the air separator through an air pipe 5, the air inlet of the cyclone dust collector 3 is connected with the air outlet 11 of the air separator through the air pipe 5, and the air inlet of the cyclone dust collector 3 is connected with the air inlet of the fan 2 through the air pipe 5;
a grain channel of the air separator 1 is internally connected with a flow dividing device 6, the flow dividing device 6 is close to a feed inlet, and the grain channel at the rear part of the flow dividing device 6 is a dust removing section 12 along the advancing direction of grains;
the flow dividing device 6 comprises a plurality of wind spoilers 7, and the wind spoilers 7 are parallel to each other and are sequentially arranged at intervals along the advancing direction of the grains; the angle between the main body 13 of the spoiler and the bottom surface of the grain channel is an obtuse angle;
referring to fig. 5 again, the wind spoiler 7 is L-shaped, one side of the wind spoiler 7 is a main body thereof, and the other side of the wind spoiler 7 is a guiding side 14; the flow guiding edge 14 of each wind spoiler 7 is on the advancing path of the grain.
With reference to fig. 2, the flow-dividing device 6 comprises a box 15 of rectangular section;
a top surface opening 16 for connecting a feeding hole is formed on one end surface of the box body 15; the top opening 16 is rectangular, the bottom edge of the top opening 16 coincides with the bottom surface of the box body 15, the top edge of the top opening 16 is below the bottom surface of the box body 15, and the left side and the right side of the top opening 16 coincide with the left side and the right side of the box body 15 respectively;
each wind spoiler 7 is identical; the left side and the right side of the wind spoiler 7 are respectively connected with the left side and the right side of the box body 15;
the flow guiding edge 14 of each spoiler is parallel to the bottom surface of the box body 15, and the projection of each flow guiding edge 14 on the top surface opening 16 is a plurality of parallel line segments with the same interval.
The grains flow from top to bottom and are uniformly distributed to the spoilers through the flow guide edges.
In this example, the spoilers are identical, with the uppermost spoiler being closest to the top edge of the top surface opening and the lowermost spoiler being furthest from the top edge of the top surface opening. Accordingly, the edge of the main body 13 of the uppermost spoiler is farthest from the bottom surface of the case.
The other end face of the box body is open, the dust removal section 12 of the grain channel is connected with the bottom opening of the box body, and the cross section coverage range of the dust removal section 12 of the grain channel is not less than that of the box body.
The axis direction of the grain channel forms an angle of 45 degrees with the horizontal direction.
Referring to fig. 3 and 4, a plurality of through holes are uniformly formed in the left side wall of the grain channel at the position of the dust removal section 12 to form an air equalizing plate 10, an air equalizing bin 9 is connected outside the grain channel, and the air equalizing plate 10 is located at an air outlet of the air equalizing bin 9; the air inlet of the air equalizing bin 9 is the air inlet 8 of the air separator.
The principle of the system is as follows: the system consists of an air separator 1, a fan 2, a cyclone dust collector 3, an air seal machine 4 and an air pipe 5. The main body of the air separator 1 forms an inclination angle of 45 degrees with the ground, and raw grains enter the air separator from the feed inlet of the air separator, flow downwards by means of self gravity, and are thrown away after being shunted by the feed inlet and passing through the L-shaped spoiler. The dust removal fan 2 blows air to an air inlet of the air separator 1, in the dust removal section 12, the air penetrates through a grain layer to take away small impurities and dust in raw grains, the small impurities and the dust are sucked into the cyclone dust collector 3 through an air outlet 11 of the air separator and collected, clean air enters the air separator 1 again through the air pipe 5, and the air separator works in a closed cycle mode. The air seal machinery 4 is arranged at the ash discharge port of the cyclone dust collector 3.
The system has the technical characteristics that:
the whole equipment is of an assembled structure, and is convenient for field installation.
The bottom plate of the feeding section of the air separator is provided with a flow dividing device (an L-shaped spoiler) to enable raw grains to flow in uniformly, and the middle part of the air separator is a dust removal section. The L-shaped spoiler of the bottom plate is made of stainless steel, the abrasion resistance is high, and small impurities and dust are separated by wind in the process of lifting and falling materials.
Connect air intake and air outlet respectively about the dust removal section, adopt the side air inlet form, prevent effectively that the material putty from influencing the selection by winnowing effect. Meanwhile, the air inlet and the air outlet can be provided with an observation window and an access hole, so that whether material blockage occurs or not can be observed and the maintenance can be carried out at any time.
Claims (4)
1. A closed-loop circulating winnowing system for grains is characterized by comprising a winnowing machine, a fan, a cyclone dust collector and an air pipe;
the grain channel of the air separator is inclined to the horizontal plane, the feed inlet of the grain channel is arranged above, and the discharge outlet of the grain channel is arranged below; the air inlet and the air outlet of the air separator are respectively arranged on the left side surface and the right side surface of the grain channel;
the air outlet of the fan is connected with the air inlet of the air separator through an air pipe, the air inlet of the cyclone dust collector is connected with the air outlet of the air separator through an air pipe, and the air inlet of the cyclone dust collector is connected with the air inlet of the fan through an air pipe;
the grain channel of the air separator is internally connected with a flow dividing device, the flow dividing device is close to the feed inlet, and the grain channel at the rear part of the flow dividing device is a dust removing section along the advancing direction of grains;
the flow dividing device comprises a plurality of spoilers, and the spoilers are parallel to each other and are sequentially arranged at intervals along the advancing direction of the grains; the angle between the main body of the spoiler and the bottom surface of the grain channel is an obtuse angle;
the spoiler is L-shaped, one side of the spoiler is a main body of the spoiler, and the other side of the spoiler is a flow guide side; the flow guide edge of each spoiler is arranged on the advancing path of the grains.
2. The closed cycle winnowing system of claim 1 wherein said splitter means comprises a box of rectangular cross section;
one end surface of the box body is provided with a top surface opening for connecting the feeding hole; the top surface opening is rectangular, the bottom edge of the top surface opening is superposed with the bottom surface of the box body, the top edge of the top surface opening is arranged below the bottom surface of the box body, and the left side and the right side of the top surface opening are respectively superposed with the left side and the right side of the box body;
each spoiler is identical; the left side and the right side of the spoiler are respectively connected with the left side and the right side of the box body;
the flow guide edges of the spoilers are parallel to the bottom surface of the box body, and the projection of each flow guide edge on the opening of the top surface is a plurality of parallel line segments with the same interval;
the other end face of the box body is open, the dust removal section of the grain channel is connected to the open end face of the box body, and the cross-section coverage range of the dust removal section of the grain channel is not smaller than that of the box body.
3. The closed cycle grain winnowing system of claim 1 wherein the axis of said grain passage is oriented at a 45 degree angle to the horizontal.
4. The closed-loop grain circulating air separation system as claimed in claim 1, wherein a plurality of through holes are uniformly formed in the left side wall of the grain channel at the position of the dust removal section to form an air equalizing plate, an air equalizing bin is connected to the outside of the grain channel, and the air equalizing plate is positioned at an air outlet of the air equalizing bin; the air inlet of the air equalizing bin is the air inlet of the air classifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120261917.2U CN214812696U (en) | 2021-01-30 | 2021-01-30 | Grain closed cycle winnowing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120261917.2U CN214812696U (en) | 2021-01-30 | 2021-01-30 | Grain closed cycle winnowing system |
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| CN214812696U true CN214812696U (en) | 2021-11-23 |
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| CN202120261917.2U Active CN214812696U (en) | 2021-01-30 | 2021-01-30 | Grain closed cycle winnowing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121480A (en) * | 2022-06-28 | 2022-09-30 | 燕龙基(徐州)再生资源利用有限公司 | Cullet particle screening equipment, air duct used by cullet particle screening equipment and control method of air duct |
-
2021
- 2021-01-30 CN CN202120261917.2U patent/CN214812696U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121480A (en) * | 2022-06-28 | 2022-09-30 | 燕龙基(徐州)再生资源利用有限公司 | Cullet particle screening equipment, air duct used by cullet particle screening equipment and control method of air duct |
| CN115121480B (en) * | 2022-06-28 | 2024-01-09 | 燕龙基(徐州)再生资源利用有限公司 | Control method of broken glass particle screening equipment |
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