CN202021156U - Device for repeated winnowing of grain impurities - Google Patents
Device for repeated winnowing of grain impurities Download PDFInfo
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- CN202021156U CN202021156U CN2010206766242U CN201020676624U CN202021156U CN 202021156 U CN202021156 U CN 202021156U CN 2010206766242 U CN2010206766242 U CN 2010206766242U CN 201020676624 U CN201020676624 U CN 201020676624U CN 202021156 U CN202021156 U CN 202021156U
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Abstract
A device for repeated winnowing of grain impurities is provided, and is used for impurity removal before grain storage or grain processing. A centrifugal fan, an active blowing port, a vertical indraft air channel and an impurity deposit chamber are connected via connecting pipelines in a sealing manner, forming a sealed circulation device. In addition, a guide slide plate is arranged on the inner wall of the vertical indraft air channel. An indraft amount adjuster and a valve are arranged in the connecting pipeline in front of an air inlet of the centrifugal fan, and a blowing amount adjuster and a blowing-amount adjusting valve are arranged at an outlet of the centrifugal fan. The device of the utility model not only is high in yield and efficiency, but also improves the impurity removal effect, enhances the impurity removal amount, and meanwhile significantly reduces the pollution of dust and other light impurities to the environment.
Description
Affiliated technical field
The utility model relates to a kind of grain impurity pneumatic separation device, is the device that is used for removing impurities in the grain specifically, is applicable to that the impurity before grain storage or the processing is cleared up.
Background technology
At present, removing impurity screening technique commonly used in the grain impurity scale removal process has vibration screening and cylinder to screen two classes.And the air intake device that usually adopts in this two classes screening technique has vertical air channel air classifier and circulated air air classifier.The main air intake of vertical air channel air classifier enters below the grain fluid layer, and auxilliary air intake passes from the grain that scatters, and by the abundant contact of air intake with grain, impurity particle, and grain and the difference of impurity aspect floating velocity are removed the acrobatics in the grain.Because the air intake port of this vertical air channel winnowing machine is in the nature open state all the time, in case when the grain fluid layer was too thick, the impurity on grain fluid layer top can only be drawn in the inlet scoop, and the impurity of bottom can't be removed, and causes the problem of cleaning effect decline; The circulated air air classifier is the method that adopts the circulation selection by winnowing, and its air inlet is far away from the distance of grain fluid layer, and its volume is less, does not have enough controls of dust, depositing dust space, and cleaning effect is not as good as vertical air channel air classifier, and its environmental pollution is bigger.
Summary of the invention
The purpose of this utility model is the deficiency at existing grain impurity cleaning equipment air intake device, a kind of raising contaminant removal effect is provided, improve the heavy problems of light materials environmental pollution such as dust in the scale removal process, and satisfy big output, high efficiency, oligosaprobic pneumatic separation device.
The purpose of this utility model realizes by following technical measures: this pneumatic separation device consists predominantly of a vertical air draught road, an active blowing mouth, grain charging aperture, a cover or the impurity expansion chamber, a centrifugal blower and some connecting pipes that are in series more than the cover.Its innovation part is the below that the active blowing mouth will be positioned at the grain charging aperture.And initiatively blowing mouth is by connecting pipe and the mutually airtight connection of the air outlet of centrifugal blower; And vertical air draught air channel is by connecting pipe and the mutually airtight connection of the air inlet of impurity expansion chamber; And the air outlet of impurity expansion chamber is by connecting pipe and the mutually airtight connection of the air inlet of centrifugal blower.Whole device is airtight recurrent state.On the opposite duct wall of the also special grain charging aperture on vertical air draught air channel of this pneumatic separation device, be provided with a guiding slide carriage that takes the form of inclined plane, and the lower end of this guiding slide carriage must be lower than the initiatively lower edge of blowing mouth simultaneously.
Impurity expansion chamber described in the utility model is a gravity settling chamber, or cyclone separator.
The utility model be the wind comes from and selected the impurity of specific floating velocity in order to adjust air quantity and the wind speed in the whole vertical air draught air channel, is provided with a suction air volume adjuster and valve in the connecting pipe of centrifugal blower air inlet front end.One blowing amount adjuster also is installed at centrifugal blower air outlet place in addition, and an end of this blowing amount adjuster is by connecting pipe and the initiatively mutually airtight connection of blowing mouth, and the other end is then installed blowing adjustable valve door.The degree of closing and opening of this control valve can be controlled the centrifugal blower exit and enter the initiatively wind speed and the air quantity of blowing mouth.
The utility model beneficial effect compared with prior art: because air-flow is to be blown under grain fluid layer near-end, can make grain stream make progress uniformly dispersing in vertical air draught air channel, thereby can make grain stream in, the impurity of bottom fully with vertical air draught air channel in air draught fully contact, impurity in the grain stream is sucked out, improved the removing effect and the cleaning amount of impurity.The impurity that adopts airtight circulation aidr bells blast system and independent impurity expansion chamber vertical air draught air channel can be selected obtains maximum sedimentation, has alleviated the pollution of light impurities such as dust to environment greatly.Blower fan places the rear end of impurity expansion chamber in addition, can alleviate greatly that impurity can improve the service life of blower fan to the wearing and tearing of blower fan in the grain, reduces energy resource consumption.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
Among the figure: 1, active blowing mouth 2, vertical air draught air channel 3, connecting pipe 4, gravity settling chamber 5, connecting pipe 6, cyclone separator 7, connecting pipe 8, centrifugal blower 9, blowing amount adjuster 10, connecting pipe 11, suction air volume adjuster and valve 12, blowing adjustable valve door 13, screw auger 14, airlock 15, clean grain-export 16, guiding slide carriage 17, grain charging aperture 18, grain stream fluid layer 19, impurity outlet (1) 20, impurity outlet (2)
The specific embodiment
The utility model is further described below in conjunction with drawings and Examples:
Embodiment one as shown in Figure 1, this grain impurity circulated air screening device mainly by a vertical air draught air channel 2, one initiatively blowing mouth 1, grain charging aperture 17, a gravity settling chamber 4 and the secondary impurity expansion chamber that cyclone separator 6 is composed in series, form by a centrifugal blower 8 and some connecting pipes 3,5,7,10.Wherein grain charging aperture 17 is arranged on the sidewall of 2 bottoms, vertical air draught air channel.Initiatively blowing mouth 1 is the below that is positioned at grain grain-entering mouth 17.A blowing amount adjuster 9 is installed at the air outlet place of centrifugal blower 8 in addition, and installs blowing adjustable valve door 12 in a port of this blowing amount adjuster 9.The another port of this blowing amount adjuster 9 is then by connecting pipe 10 and active 1 airtight connection of blowing mouth.Enter the initiatively wind speed and the air quantity of blowing mouth 1 so just can control centrifugal blower 8 by the adjusting of blowing amount adjuster 9.And vertical air draught air channel 2 is to be connected with the air inlet of gravity settling chamber 4 is airtight by connecting pipe 3.The air outlet of gravity settling chamber 4 is connected with the air inlet of cyclone separator 6 is airtight by connecting pipe 5 again.The air outlet of cyclone separator 6 is connected with the air inlet of centrifugal blower 8 is airtight by connecting pipe 7 again.The air inlet place of close centrifugal blower 8 in this connecting pipe 7 is provided with a suction air volume adjuster and valve 11 simultaneously, and it can be used for regulating air quantity and wind speed in the whole vertical air draught air channel.This shows that the whole wind screening device is in an airtight recurrent state all the time.On the opposite duct wall of the also special grain charging aperture 17 on vertical air draught air channel 2 of this pneumatic separation device, be provided with a guiding slide carriage 16 that takes the form of inclined plane, and the lower end of this guiding slide carriage 16 is to be lower than the initiatively lower edge of blowing mouth 1.Also screw auger 13 is installed in addition, in the bottom of this screw auger 13 airlock 14 is installed also simultaneously in the bottom of gravity settling chamber 4.
This grain impurity circulated air screening device is like this work: in case when centrifugal blower begins to rotate, will produce negative pressure at the air inlet of blower fan, because air inlet and cyclone separator, gravity settling chamber, the mutually airtight connection in vertical air draught air channel, so the air of vertical bottom, air draught air channel just drives its proportion impurity light than grain fast and runs up indoor into gravitational settling, and grain proportion is bigger, will flow downward to come out from clean grain-export along the guiding slide carriage.Again because the Rapid Expansion of gravitational settling chamber inner space, the bigger impurity of impurity proportion just falls into the lower screw auger place of its air-flow velocity of gravity settling chamber bottom in the turnover gravity settling chamber, and the airlock place below being transported under the impetus of screw auger, that it is discharged to gravitational settling is outdoor for the rotation by airlock again.Enter the impurity that impurity proportion is lighter in the gravity settling chamber and just flow into cyclone separator inside with high velocity air.Under the action of centrifugal force of cyclone separator, the density impurity granule bigger than air outwards moved on the wall of cyclone separator, and then move downward from the impurity exit along wall and to enter.The outlet of cyclone separator has then transferred out clean air.One blowing amount adjuster is installed at the air outlet place of centrifugal blower, an air quantity part that blows out from fan outlet enters initiatively blowing mouth by connecting pipe, another part is then according to the proportion situation of cleaning object grain and impurity, by the opening degree of regulating blowing adjustable valve door adjust exhaust air rate how much.Because initiatively blowing mouth is positioned at grain charging aperture lower proximal end; after the air of discharging from the centrifugal blower air outlet enters the active blowing mouth; air-flow just upwards passes through from the grain stream bottom equably along the incline direction of guiding slide carriage; and drive grain stream and evenly upwards scatter and be distributed in the lower space of vertical air draught air channel; impurity particle in the grain stream can be fully with vertical air draught air channel in the air-flow that makes progress contact and be separated, run indoor to gravitational settling.So by the air draught of being formed by a centrifugal blower, secondary impurity expansion chamber, the circulation wind path of drying, the ability of cleaning and efficient have not only been improved to impurity, improved the treating capacity of grain, and reduced the pollution of operation process, reduced the consumption of the energy simultaneously environment.
Embodiment two as shown in Figure 2, it with implement one different be to have cancelled gravity settling chamber.In embodiment two, vertical air draught air channel 2 and the mutually airtight connection of the air inlet of cyclone separator.Remainder is identical with enforcement one.
Claims (3)
1. grain impurity circulated air screening device, the impurity expansion chamber (4,6), a centrifugal blower (8) and some connecting pipes (3,5,7,10) that include a vertical air draught air channel (2), active blowing mouth (1), a grain charging aperture (17), a cover or be in series more than the cover, it is characterized in that active blowing mouth (1) will be positioned at the below of grain grain-entering mouth (17), and initiatively blowing mouth (1) is by the air outlet mutually airtight connection of connecting pipe (10) with centrifugal blower (8); And vertical air draught air channel (2) is by the air inlet mutually airtight connection of connecting pipe (3) with impurity expansion chamber (4); And the air outlet of impurity expansion chamber (6) is by the air inlet mutually airtight connection of connecting pipe (7) with centrifugal blower (8), whole device is airtight recurrent state, simultaneously also especially on the opposite duct wall of the grain charging aperture (17) on the vertical air draught air channel (2), be provided with a guiding slide carriage (16) that takes the form of inclined plane, and the lower end of this guiding slide carriage (16) must be lower than the initiatively lower edge of blowing mouth (1).
2. a kind of grain impurity circulated air screening device according to claim 1 is characterized in that described impurity expansion chamber is gravity settling chamber (4), or cyclone separator (6).
3. a kind of grain impurity circulated air screening device according to claim 1 and 2, it is characterized in that in the connecting pipe (7) of centrifugal blower (8) air inlet front end, being provided with a suction air volume adjuster and valve (11), also one blowing amount adjuster (9) is installed in addition at centrifugal blower (8) air outlet place, one end of this blowing amount adjuster (9) is by connecting pipe (10) and the initiatively mutually airtight connection of blowing mouth (1), and the other end is then installed blowing adjustable valve door (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206766242U CN202021156U (en) | 2010-12-23 | 2010-12-23 | Device for repeated winnowing of grain impurities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206766242U CN202021156U (en) | 2010-12-23 | 2010-12-23 | Device for repeated winnowing of grain impurities |
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| Publication Number | Publication Date |
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| CN202021156U true CN202021156U (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206766242U Expired - Fee Related CN202021156U (en) | 2010-12-23 | 2010-12-23 | Device for repeated winnowing of grain impurities |
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| CN (1) | CN202021156U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111380A (en) * | 2013-02-27 | 2013-05-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Cyclone dust collection device |
| CN103736659A (en) * | 2013-12-31 | 2014-04-23 | 杨国荣 | Circulating fluidized bed airflow screening device |
| CN105268565A (en) * | 2015-11-09 | 2016-01-27 | 中储粮成都粮食储藏科学研究所 | Impurity removing device used before grain is put in storage |
| CN105478248A (en) * | 2014-07-30 | 2016-04-13 | 安徽古井贡酒股份有限公司 | Separation method for impurities in rice hulls |
| CN107161704A (en) * | 2017-06-20 | 2017-09-15 | 安徽省阜阳市速发机械有限责任公司 | A kind of cleaning type grain absorber |
| CN107262371A (en) * | 2017-06-28 | 2017-10-20 | 徐州瑞龙核桃科技开发有限公司 | A kind of winnowing type walnut machine for separating kernel and shell |
| CN108237117A (en) * | 2016-12-26 | 2018-07-03 | 长沙中彬环保科技有限公司 | Grain moves the special vertical air suction device of cleaning system |
| CN109225855A (en) * | 2018-09-21 | 2019-01-18 | 贵州大学 | A kind of wind-force grain cleaning dedicated unit |
| CN110052404A (en) * | 2019-04-30 | 2019-07-26 | 黑龙江省建三江农垦长湖机械科技有限公司 | High yield type wind separator for grain |
-
2010
- 2010-12-23 CN CN2010206766242U patent/CN202021156U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111380A (en) * | 2013-02-27 | 2013-05-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Cyclone dust collection device |
| CN103736659A (en) * | 2013-12-31 | 2014-04-23 | 杨国荣 | Circulating fluidized bed airflow screening device |
| CN103736659B (en) * | 2013-12-31 | 2015-11-18 | 楚雄博杉科技有限公司 | Recirculating fluidized bed air flow screening device |
| CN105478248A (en) * | 2014-07-30 | 2016-04-13 | 安徽古井贡酒股份有限公司 | Separation method for impurities in rice hulls |
| CN105478248B (en) * | 2014-07-30 | 2017-10-03 | 安徽古井贡酒股份有限公司 | The separation method of impurity in a kind of rice husk |
| CN105268565A (en) * | 2015-11-09 | 2016-01-27 | 中储粮成都粮食储藏科学研究所 | Impurity removing device used before grain is put in storage |
| CN108237117A (en) * | 2016-12-26 | 2018-07-03 | 长沙中彬环保科技有限公司 | Grain moves the special vertical air suction device of cleaning system |
| CN107161704A (en) * | 2017-06-20 | 2017-09-15 | 安徽省阜阳市速发机械有限责任公司 | A kind of cleaning type grain absorber |
| CN107262371A (en) * | 2017-06-28 | 2017-10-20 | 徐州瑞龙核桃科技开发有限公司 | A kind of winnowing type walnut machine for separating kernel and shell |
| CN109225855A (en) * | 2018-09-21 | 2019-01-18 | 贵州大学 | A kind of wind-force grain cleaning dedicated unit |
| CN110052404A (en) * | 2019-04-30 | 2019-07-26 | 黑龙江省建三江农垦长湖机械科技有限公司 | High yield type wind separator for grain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20121223 |