CN220635336U - Rice processing sorter - Google Patents
Rice processing sorter Download PDFInfo
- Publication number
- CN220635336U CN220635336U CN202322199662.3U CN202322199662U CN220635336U CN 220635336 U CN220635336 U CN 220635336U CN 202322199662 U CN202322199662 U CN 202322199662U CN 220635336 U CN220635336 U CN 220635336U
- Authority
- CN
- China
- Prior art keywords
- gas
- winnowing bin
- paddy
- rice processing
- hopper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 21
- 235000009566 rice Nutrition 0.000 title claims abstract description 21
- 240000007594 Oryza sativa Species 0.000 title abstract 2
- 239000002893 slag Substances 0.000 claims abstract description 12
- 235000013339 cereals Nutrition 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 8
- 241000209094 Oryza Species 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 abstract description 17
- 230000001133 acceleration Effects 0.000 abstract description 12
- 238000000926 separation method Methods 0.000 abstract description 9
- 244000062793 Sorghum vulgare Species 0.000 abstract description 7
- 235000019713 millet Nutrition 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model discloses a rice processing separator, which comprises a winnowing bin, wherein one side of the winnowing bin is provided with a gas homogenizing cover, the gas homogenizing cover is connected with an air inlet pump through a gas pipe, the other end of the winnowing bin is provided with a gas outlet, and the gas outlet is connected with a gas-solid separator; the bottom of the winnowing bin is provided with a projectile device on one side close to the air homogenizing cover for vertically throwing the paddy, and the rear side of the projectile device is provided with a slag hopper and a paddy hopper in sequence. According to the utility model, the paddy is vertically thrown upwards from the bottom, the acceleration time of the paddy or impurities is prolonged, the distance difference equivalent to the transverse acceleration at the same height is also enlarged by four times, and the separation is more accurate. In order to enlarge the separation distance, the device is matched with larger transverse wind speed, chaff and empty and shrunken millet are directly carried away by wind power, a gas-solid separator is arranged at the tail end for separating the chaff, and impurities such as stones enter the slag hopper, and healthy millet enters the grain hopper.
Description
Technical Field
The utility model relates to a winnowing device, in particular to a rice processing separator.
Background
Before rice processing, impurities in the rice need to be removed, the impurities comprise chaff, shrunken grains, sand and the like, the impurities cannot be removed completely in a screening mode, the best mode is to adopt winnowing and utilize the difference of specific gravity to achieve the purpose of removing the impurities, but some impurity proportions are relatively close to normal rice, so that if the falling distance is relatively close, the purpose of separation cannot be achieved, if wind power is too large, the situation that the rice is also rolled up can be caused, the best mode is to increase transverse acceleration, namely, the falling height is increased, the common factory building height is fixed, the equipment height is limited, and higher equipment is not easy to transport.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the rice processing separator, which can increase the transverse displacement without increasing the height of equipment, so that the separation is more accurate.
In order to solve the technical problems, the technical scheme of the utility model is as follows.
The rice processing separator comprises a winnowing bin, wherein one side of the winnowing bin is provided with a gas homogenizing cover, the gas homogenizing cover is connected with an air inlet pump through an air pipe, the other end of the winnowing bin is provided with an air outlet, and the air outlet is connected with a gas-solid separator; the bottom of the winnowing bin is provided with a projectile device on one side close to the air homogenizing cover for vertically throwing the paddy, and the rear side of the projectile device is provided with a slag hopper and a paddy hopper in sequence.
Further, electric air valves are arranged in front of outlets at the bottoms of the slag hoppers and the grain hoppers.
Furthermore, the projectile device adopts a wind force projectile device.
Further, the wind-force projectile device comprises a compression air pipe, a venturi mixer, a feeding pipe and a mixing pipe, wherein the compression air pipe is connected to the air inlet end of the venturi mixer, the feeding pipe is connected to the feeding port of the venturi mixer, the mixing pipe is connected between the air outlet end of the venturi mixer and the bottom of the winnowing bin, and the position of the mixing pipe at the bottom of the winnowing bin is vertically upward.
Further, an exhaust hood is arranged on the air outlet side of the winnowing bin, and the whole exhaust hood is inclined downwards.
Further, the outlet speed of the projectile is as followsWherein s is the internal height of the winnowing bin.
By adopting the technical scheme, as the projectile device is added, the paddy is vertically thrown upwards from the bottom, and the advantage is that the paddy and impurities are respectively accelerated in the vertical throwing process from the bottom, accelerated in the falling process, and the acceleration time of the paddy or impurities is prolonged compared with the free falling mode. The distance difference equivalent to the lateral acceleration at the same height is also enlarged by four times, so that the separation is more accurate. In order to enlarge the separation distance, the device is matched with larger transverse wind speed, chaff and empty and shrunken millet are directly carried away by wind power, a gas-solid separator is arranged at the tail end for separating the chaff, and impurities such as stones enter the slag hopper, and healthy millet enters the grain hopper.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure, 1-winnowing bin, 11-even hood, 12-slag hopper, 13-grain hopper, 14-exhaust hood, 2-air inlet pump, 21-air pipe, 3-electric air valve, 4-venturi mixer, 41-compressed air pipe, 42-feeding pipe, 43-mixing pipe and 5-gas-solid separator.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1:
the rice processing separator comprises a winnowing bin 1, wherein one side of the winnowing bin 1 is provided with a gas homogenizing cover 11, the gas homogenizing cover 11 is connected with an air inlet pump 2 through a gas pipe 21, the other end of the winnowing bin 1 is a gas outlet, and the gas outlet is connected with a gas-solid separator 5 (only by adopting a cyclone separator); the bottom of the winnowing bin 1 is provided with a projectile device at one side close to the air homogenizing cover 11 for vertically throwing the paddy, and a slag bucket 12 and a paddy bucket 13 are sequentially arranged at the rear side of the projectile device.
The utility model adds the projectile device to vertically projectile the paddy from the bottom upwards, and has the advantages that the paddy and the impurity are respectively accelerated in the vertical projectile process from the bottom upwards, and are accelerated in the falling process, and compared with the free falling mode, the acceleration time of the paddy or the impurity is prolonged.
Ideally, when top drop is employed:
when the internal height S of the winnowing bin 1 is equal to S in the falling height of the rice, the falling time is as follows:the speed of the tip in the vertical direction +.>Wherein t is 1 Also the time of lateral acceleration, then the lateral distance is satisfied +.>Wherein S is x Represents the lateral displacement of rice or impurities, a x It is known from the equation that the longer the lateral acceleration time, the larger the difference in displacement generated in the lateral direction, and thus the larger the distance separating the different specific gravities, and the more accurate the separation.
Adopting bottom casting, wherein the internal height is S;
from the displacement and acceleration formulas: the end speed is that when the device falls verticallyThe theoretical optimum speed of the upward polishing is +.>The outlet speed of the projectile is theoretically zero when the projectile just reaches the top of the winnowing bin 1, and then is openedFrom falling, the time required in the rising and falling processes is t 1 So the lateral acceleration time t 2＝ 2t 1 The lateral movement distance is->The distance difference equivalent to the lateral acceleration at the same height is also enlarged by four times, so that the separation is more accurate.
Although in practice the above calculations are biased by the presence of air resistance, the actual value is smaller than the calculated value, this does not affect the effect finally achieved.
In order to enlarge the separation distance, the wind speed is matched with a larger transverse wind speed, chaff and empty and shrunken millet are directly carried away by wind power, the tail end of the wind speed is provided with a gas-solid separator 5 for separating the chaff, and impurities such as stones enter the slag hopper 12, and healthy millet enters the grain hopper 13 (note that the wind speed cannot be too fast so that normal rice is suspended and can fall normally).
As an optimization scheme, the electric air shutoff valves 3 are arranged in front of the bottom outlets of the slag hopper 12 and the grain hopper 13, so that impurities and rice can be discharged when winnowing is carried out, and equipment is not required to be shut down or the slag hopper 12 or the grain hopper 13 which is very large is not required to be replaced.
As an optimization scheme, the projectile device adopts a wind force projectile device, and the advantage of adopting wind force projectile is that the paddy and impurities are in a suspension and dispersion state, so that the paddy and impurities can be uniformly contacted with air flow for acceleration after being thrown out.
As an optimization scheme, the wind force throwing device comprises a compressed air pipe 41, a venturi mixer 4, a feeding pipe 42 and a mixing pipe 43, wherein the compressed air pipe 41 is connected to the air inlet end of the venturi mixer 4, the feeding pipe 42 is connected to the feeding hole of the venturi mixer 4, the mixing pipe 43 is connected between the air outlet end of the venturi mixer 4 and the bottom of the winnowing bin 1, and the position of the mixing pipe 43 at the bottom of the winnowing bin 1 is vertically upward.
Because the chaff and the empty and shrunken millet are directly carried away by adopting wind power, the exhaust hood 14 is arranged on the air outlet side of the winnowing bin 1, and the whole exhaust hood 14 is inclined downwards, so that the residual at the corner can be avoided.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.
Claims (6)
1. A rice processing classifier, characterized in that: the device comprises a winnowing bin, wherein one side of the winnowing bin is provided with a gas homogenizing cover, the gas homogenizing cover is connected with an air inlet pump through a gas pipe, the other end of the winnowing bin is provided with an air outlet, and the air outlet is connected with a gas-solid separator; the bottom of the winnowing bin is provided with a projectile device on one side close to the air homogenizing cover for vertically throwing the paddy, and the rear side of the projectile device is provided with a slag hopper and a paddy hopper in sequence.
2. The rice processing classifier of claim 1, wherein: electric air valves are arranged in front of outlets at the bottoms of the slag hopper and the grain hopper.
3. The rice processing classifier of claim 2, wherein: the projectile device adopts a wind force projectile device.
4. A rice processing classifier as claimed in claim 3, wherein: the wind power throwing device comprises a compression air pipe, a venturi mixer, a feeding pipe and a mixing pipe, wherein the compression air pipe is connected to the air inlet end of the venturi mixer, the feeding pipe is connected to the feeding port of the venturi mixer, the mixing pipe is connected between the air outlet end of the venturi mixer and the bottom of the winnowing bin, and the position of the mixing pipe at the bottom of the winnowing bin is vertical upwards.
5. The rice processing classifier of claim 2, wherein: the air outlet side of the winnowing bin is provided with an exhaust hood, and the whole exhaust hood is inclined downwards.
6. The rice processing classifier of claim 2, wherein: the outlet speed of the projectile device is as followsWherein s is the internal height of the winnowing bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322199662.3U CN220635336U (en) | 2023-08-16 | 2023-08-16 | Rice processing sorter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322199662.3U CN220635336U (en) | 2023-08-16 | 2023-08-16 | Rice processing sorter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220635336U true CN220635336U (en) | 2024-03-22 |
Family
ID=90267061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322199662.3U Active CN220635336U (en) | 2023-08-16 | 2023-08-16 | Rice processing sorter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220635336U (en) |
-
2023
- 2023-08-16 CN CN202322199662.3U patent/CN220635336U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |