CN107234066B - Secondary air draft feeding system of rotary combined multi-layer screen - Google Patents
Secondary air draft feeding system of rotary combined multi-layer screen Download PDFInfo
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- CN107234066B CN107234066B CN201710672471.0A CN201710672471A CN107234066B CN 107234066 B CN107234066 B CN 107234066B CN 201710672471 A CN201710672471 A CN 201710672471A CN 107234066 B CN107234066 B CN 107234066B
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- 239000000428 dust Substances 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 33
- 206010010904 Convulsion Diseases 0.000 claims description 8
- 230000036461 convulsion Effects 0.000 claims description 8
- 239000012535 impurity Substances 0.000 abstract description 32
- 238000004140 cleaning Methods 0.000 abstract description 12
- 238000012216 screening Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/02—Arrangement of air or material conditioning accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
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- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to a secondary air draft feeding system of a rotary combined multi-layer sieve, which comprises an air inlet pipe, a lower layer air draft channel, a reversing air flue, an upper layer air draft channel and an air draft opening, wherein an opening at the lower end of the air inlet pipe is communicated with a grain cleaning channel of the rotary combined multi-layer sieve, the lower layer air draft channel, the reversing air flue and the upper layer air draft channel are arranged in a feeding shell of the rotary combined multi-layer sieve, one side of the feeding shell is provided with the air draft opening, the upper layer air draft channel is communicated with the air draft opening on the shell, the lower layer air draft channel is communicated with the air inlet pipe arranged on a frame, the lower layer air draft channel is communicated with the upper layer air draft channel through the reversing air flue, the air inlet pipe is communicated with the grain cleaning channel and the lower layer air draft channel, light and fine impurities in clean grains in the grain cleaning channel are removed in the lower layer air draft channel after being carried by airflow, and meanwhile, when the airflow passes through the feeding channel, the light and fine impurities in grain materials are removed in the upper layer air draft channel after being carried, so that the light and fine impurities in the grain materials are removed twice dust removal, and impurity removal efficiency is achieved.
Description
Technical Field
The invention relates to the technical field of grain screening and impurity removing equipment, in particular to a secondary air draft feeding system of a rotary combined multi-layer screen.
Background
Before the grain is put in storage, the grain contains impurities and dust, and the impurities are put in storage in the grain, so that the grain can generate heat and mildew, and the grain can not flow smoothly when being put out of storage, thereby causing serious loss of the grain. Therefore, the grains must be cleaned before being put in storage, and impurities and part of dust in the grains are screened out. At present, the devices for screening and dedusting grains in the market are various, such as a vibrating screen, a plane rotary screen and the like, but the existing screening and dedusting devices are single in most functions and low in screening efficiency, and cannot meet the screening requirements of large grain depots. In order to solve the problems in the prior art, technicians develop a rotary combined multi-layer screen, and the rotary combined multi-layer screen is mainly based on an original plane rotary screen, and a plurality of layers of screen grids which work simultaneously are arranged, and the multi-layer screen grids work simultaneously, so that the screening efficiency is effectively improved. However, the rotary combined multi-layer sieve can remove particle impurities in grains, and light and fine impurities such as crushed straws in grains are often removed by connecting dust removing equipment after the rotary combined multi-layer sieve.
Disclosure of Invention
In summary, in order to overcome the defects of the prior art, the invention provides a secondary air draft feeding system of a rotary combined multi-layer screen, which is characterized in that an air inlet pipe is arranged on a rack of the rotary combined multi-layer screen, an air draft channel is arranged at the upper part of the rotary combined multi-layer screen, the air inlet pipe is communicated with a grain purifying channel and the air draft channel, the air draft channel passes through the feeding channel, light and fine impurities in grain purifying in the grain purifying channel are carried and removed by air flow, and meanwhile, the air flow carries and removes the light and fine impurities in grain materials when passing through the feeding channel, so that the light and fine impurities are removed by twice dust removal, and the dust removal and impurity removal efficiency is high.
In order to solve the technical problems, the invention adopts the following technical scheme:
a secondary draft feed system for a rotary combined multi-deck screen, wherein: including air-supply line, lower floor's air-extracting channel, switching-over wind channel, upper strata air-extracting channel and air-extracting opening, air-supply line lower extreme opening intercommunication gyration combination multilayer sieve's grain cleaning passageway, lower floor's air-extracting channel, switching-over wind channel and upper strata air-extracting channel set up in the feed housing of gyration combination multilayer sieve, one side of feed housing is provided with the air-extracting opening, the feed housing in be provided with upper air deflector, lower floor's air deflector, upper strata deflector, lower floor's deflector and lower floor's baffle, upper strata deflector hinge on the feed housing, upper strata deflector both ends are fixed with the feed housing, upper strata deflector and upper strata deflector constitute the upper strata feed channel that the cross-section shape is funnel-shaped, lower floor's deflector and feed housing are fixed, upper strata deflector and lower floor's air-extracting channel that the cross-section shape is funnel-shaped, upper strata feed channel upper end opening correspond the feed inlet, the upper strata deflector and the air-extracting opening that the lower floor corresponds the lower floor of upper strata deflector forms the air-extracting channel, the air-extracting channel that the upper strata deflector and the lower floor of upper strata deflector and the feed housing are connected through the air-extracting channel, the upper and the air-extracting channel that the upper strata of the air-extracting channel is formed between the upper strata of the upper strata deflector and the lower floor of the layer of the feed housing.
The technical scheme of the invention can also be realized as follows: the cross-sectional shape of lower floor's aviation baffle be the V type, lower floor's aviation baffle is connected with lower floor's stock guide, is provided with lower floor's dust exhaust auger in the lower floor's aviation baffle, and the side of feed housing is provided with the dust exhaust passageway, and lower floor's aviation baffle passes through lower floor's dust exhaust auger and connects the dust exhaust passageway.
The technical scheme of the invention can also be realized as follows: the cross section shape of upper air deflector be the V type, upper air deflector in be provided with upper dust exhaust auger, upper air deflector passes through upper dust exhaust auger intercommunication dust exhaust passageway.
The beneficial effects of the invention are as follows:
1. the invention is that an air inlet pipe is arranged on a frame of the rotary combination multi-layer screen, an air suction channel is arranged at the upper part of the rotary combination multi-layer screen, the air inlet pipe is communicated with the grain cleaning channel and the air suction channel, the air suction channel penetrates through the feeding channel, light and fine impurities in clean grains in the grain cleaning channel are carried and removed by air flow, and meanwhile, the air flow carries and removes the light and fine impurities in grain materials when passing through the feeding channel, thereby realizing twice dust removal and light and fine impurity removal, and the dust removal and impurity removal efficiency is high.
2. The lower end pipe orifice of the air inlet pipe is communicated with the grain cleaning channel, the upper end of the air inlet pipe is communicated with the air suction channel arranged in the feeding shell, and the air suction fan is used for sucking and removing light and fine impurities and dust in clean grains flowing out of the grain cleaning channel through the air suction channel and the air inlet pipe, so that the dust removal purpose is achieved, the functions of the grain cleaning machine are various, and the grain cleaning machine can be used for screening, removing impurities, classifying and removing dust for grain materials and is multipurpose.
3. The air draft channel comprises an upper air draft channel, a lower air draft channel and a reversing air channel, wherein the air inlet pipe is communicated with the lower air draft channel and the grain cleaning channel, when dust and other light and fine impurities in the extracted grain cleaning flow pass through a V-shaped part of the lower air deflector, the space of the V-shaped part is large relative to the air inlet pipe, the space is increased, the air flow speed is low, the light and fine impurities in the air flow settle in the V-shaped part of the lower air deflector and are discharged by a lower dust discharge auger, then the air flow enters the reversing air channel for reversing, the space is reduced again, the flow speed is increased, when the air flow passes through grain material flows of the lower feed channel and the upper feed channel, the dust and the light and fine impurities in the grain material flow are taken away, and when the air flow passes through the V-shaped part of the upper air deflector, the space is increased again, and the dust and the light and fine impurities in the air flow are settled and discharged again. Thereby realizing secondary air draft dust removal, and the design is novel and the conception is ingenious.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, a secondary air draft feeding system of a rotary combined multi-layer sieve comprises an air inlet pipe 1, a lower air draft channel 2, a reversing air channel 3, an upper air draft channel 4 and an air draft opening 5, wherein the lower end opening of the air inlet pipe 1 is communicated with a grain purifying channel 6 of the rotary combined multi-layer sieve, the lower air draft channel 2, the reversing air channel 3 and the upper air draft channel 4 are arranged in a feeding shell 7 of the rotary combined multi-layer sieve, one side of the feeding shell 7 is provided with the air draft opening 5, an upper air deflector 8, a lower air deflector 9, an upper material guide plate 10, an upper material guide plate 11, a lower material guide plate 12 and a lower baffle 13 are arranged in the feeding shell 7, the upper material guide plate 11 is hinged on the feeding shell 7, two ends of the upper material guide plate 10 are fixed with the feeding shell 7, the upper material guide plate 11 and the upper material guide plate 10 form an upper material feed channel 14 with a funnel-shaped section, gaps are formed between the upper layer material guide plate 10, the upper layer material equalization plate 11 and the top plate of the feeding shell 7, the lower layer material guide plate 12, the lower layer baffle plate 13 and the feeding shell 7 are fixed, the lower layer material guide plate 12 and the lower layer baffle plate 13 form a lower layer feeding channel 15 with a funnel-shaped cross section, gaps exist between the lower layer material guide plate 12 and the upper layer material equalization plate 11, the upper end opening of the upper layer feeding channel 14 corresponds to a feeding port 16, the lower end opening of the upper layer feeding channel 14 corresponds to the upper end opening of the lower layer feeding channel 15, the lower end opening of the lower layer feeding channel 15 corresponds to a feeding hopper 18 of a screen body 17 of the rotary combined multi-layer screen, gaps exist between the upper layer air guide plate 8 and the top plate of the feeding shell 7, gaps between the upper layer material equalization plate 11 and the top plate of the feeding shell 7, the clearance intercommunication between upper guide plate 10 and the feeding casing 7 roof constitutes upper exhaust channel 4, lower floor's aviation baffle 9 and upper aviation baffle 8 between have the clearance, clearance between lower floor's aviation baffle 9 and upper aviation baffle 8, clearance intercommunication between lower guide plate 12 and upper average flitch 11 constitutes lower floor's convulsions channel 2 each other, upper guide plate 10 and lower baffle 13 between form switching-over wind channel 3, the exhaust port 5 on upper convulsions channel 4 intercommunication casing, lower floor's convulsions channel 2 intercommunication air-supply line 1 that sets up in the frame, lower floor's convulsions channel 2 communicates upper convulsions channel 4 through switching-over wind channel 3. The cross section shape of lower floor's aviation baffle 9 is the V type, and lower floor's aviation baffle 9 is connected with lower floor's stock guide 12, is provided with lower floor's dust exhaust auger 19 in the lower floor's aviation baffle 9, and the side of feed housing 7 is provided with the dust exhaust passageway, and lower floor's aviation baffle 9 passes through lower floor's dust exhaust auger 19 and connects the dust exhaust passageway. The cross section shape of upper air deflector 8 is V type, upper dust exhaust auger 20 is provided in upper air deflector 8, upper air deflector 8 communicates the dust exhaust passageway through upper dust exhaust auger 20.
When in use, the power transmission system is started, and drives the screen 17 to do plane rotation movement, so that the exhaust port 5 of the invention is communicated with the exhaust fan. Grain materials enter from a feed port 16, enter a sieve body 17 through an upper layer feed channel 14, a lower layer feed channel 15 and a feed hopper 18, meanwhile, a multi-layer sieve grid group in the sieve body 17 screens the grain materials, large impurities are discharged from a large impurity outlet on the sieve body 17, small impurities are discharged from a small impurity outlet on the sieve body 17, clean grains are discharged from a clean grain channel 6 on the sieve body, the clean grain channel 6 is communicated with an air inlet pipe 1, light impurities such as dust in the clean grains are pumped away under the action of an exhaust fan, flow upwards along the air inlet pipe 1, when air flows into a V-shaped part of a lower layer air deflector 9 of the lower layer exhaust channel 2, the space is increased, the air flow pressure is reduced, the flow speed is reduced, dust and other light impurities in the air flow are settled, discharged by a lower layer dust discharge auger 19, the air flow continues to flow, when the air flows through the grain materials between the upper layer feed channel 14 and the lower layer feed channel 15, then the clean grains and the light impurities in the air flow are discharged through a reversing air channel 3, when the air flows into a lower layer of the grain materials, the dust and the dust in the air flow is taken away from the light impurities in the air flow is reduced, the air flow is discharged from the air flow, and the dust in the air flow is reduced, and the dust settling part in the air flow is discharged from the air flow is reduced, and the dust settling part is reduced, and the dust is discharged from the air flow is discharged from the air layer.
It should be noted that the above-mentioned embodiments illustrate rather than limit the technical solution of the present invention, and that those skilled in the art may substitute equivalents or make other modifications according to the prior art without departing from the spirit and scope of the technical solution of the present invention, and are included in the scope of the claims.
Claims (1)
1. A secondary convulsions feed system of gyration combination multilayer sieve, its characterized in that: including air-supply line (1), lower floor's convulsions passageway (2), switching-over wind channel (3), upper exhaust passageway (4) and air inlet (5), air-supply line (1) lower extreme opening intercommunication rotation combination multilayer sieve net grain passageway (6), lower floor's convulsions passageway (2), switching-over wind channel (3) and upper exhaust passageway (4) set up in rotation combination multilayer sieve's feeding casing (7), one side of feeding casing (7) is provided with air inlet (5), feeding casing (7) in be provided with upper air deflector (8), lower floor's air deflector (9), upper material guide plate (10), upper layer average material plate (11), lower floor's guide plate (12) and lower floor's baffle (13), upper layer average material plate (11) articulated on feeding casing (7), upper material guide plate (10) both ends and feeding casing (7) are fixed, upper layer average material plate (11) and upper layer guide plate (10) form the upper channel (14) that the cross-section shape is the funnel shape, upper layer average material guide plate (11) and lower layer (13) are the cross-section shape of hopper (13), lower layer average material guide plate (11) and lower layer (13) are fixed with the cross-section shape of hopper (13), the upper end opening of the upper layer feeding channel (14) corresponds to a feeding hole (16), the lower end opening of the upper layer feeding channel (14) corresponds to the upper end opening of the lower layer feeding channel (15), the lower end opening of the lower layer feeding channel (15) corresponds to a feed hopper (18) of a screen body (17) of the rotary combined multilayer screen, an upper layer air draft channel (4) is formed between an upper layer air draft plate (8) and a top plate of a feeding shell (7), a lower layer air draft channel (2) is formed between a lower layer air draft plate (9) and the upper layer air draft plate (8), a reversing air duct (3) is formed between an upper layer air draft plate (10) and a lower layer air draft plate (13), the upper layer air draft channel (4) is communicated with an air draft hole (5) on the shell, the lower layer air draft channel (2) is communicated with an air inlet pipe (1) arranged on a frame, the lower layer air draft channel (2) is communicated with the upper layer air draft channel (4) through the reversing air duct (3), the cross section of the lower layer air draft plate (9) is in a V-shaped, the lower layer air draft plate (9) is connected with a lower layer air draft plate (19) through a lower layer air draft guide plate (9), the lower layer air draft plate (19) is connected with a dust exhaust channel (19) in the lower layer air guide plate (9), the cross section shape of upper air deflector (8) be the V type, upper air deflector (8) in be provided with upper dust exhaust auger (20), upper air deflector (8) pass through upper dust exhaust auger (20) intercommunication dust exhaust passageway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672471.0A CN107234066B (en) | 2017-08-08 | 2017-08-08 | Secondary air draft feeding system of rotary combined multi-layer screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672471.0A CN107234066B (en) | 2017-08-08 | 2017-08-08 | Secondary air draft feeding system of rotary combined multi-layer screen |
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| Publication Number | Publication Date |
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| CN107234066A CN107234066A (en) | 2017-10-10 |
| CN107234066B true CN107234066B (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710672471.0A Active CN107234066B (en) | 2017-08-08 | 2017-08-08 | Secondary air draft feeding system of rotary combined multi-layer screen |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107670989A (en) * | 2017-10-23 | 2018-02-09 | 扬州明品机械设备有限公司 | A kind of two level cleaner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2404600Y (en) * | 1999-12-24 | 2000-11-08 | 张振华 | Apparatus for cleaning grains |
| CN102441532A (en) * | 2011-09-28 | 2012-05-09 | 中国储备粮管理总公司 | Combined cleaning equipment of raw grain air sieve |
| CN105268641A (en) * | 2015-11-19 | 2016-01-27 | 沈一青 | Grain winnowing vibration screen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007021004B3 (en) * | 2007-05-04 | 2008-05-15 | Rhewum Gmbh | Sieving machine for separating bulk goods, has fine goods dispensing part i.e. fine goods funnel, provided, and cross-flow separator integrated in fine goods dispensing part, where fine goods are de-dusted by cross-flow separator |
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2017
- 2017-08-08 CN CN201710672471.0A patent/CN107234066B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2404600Y (en) * | 1999-12-24 | 2000-11-08 | 张振华 | Apparatus for cleaning grains |
| CN102441532A (en) * | 2011-09-28 | 2012-05-09 | 中国储备粮管理总公司 | Combined cleaning equipment of raw grain air sieve |
| CN105268641A (en) * | 2015-11-19 | 2016-01-27 | 沈一青 | Grain winnowing vibration screen |
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| CN107234066A (en) | 2017-10-10 |
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Effective date of registration: 20230316 Address after: 475200 West of the middle section of Jingsi Road, Qixian Industrial Cluster, Kaifeng City, Henan Province Applicant after: COFCO engineering Maosheng equipment (Henan) Co.,Ltd. Address before: 475200 middle section of Jingsi Road, Qi County, Kaifeng City, Henan Province Applicant before: KAIFENG MAOSHENG GRAIN MACHINERY Co.,Ltd. |
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