CN112044589B - Automatic chinese chestnut screening device - Google Patents
Automatic chinese chestnut screening device Download PDFInfo
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- CN112044589B CN112044589B CN202010924051.9A CN202010924051A CN112044589B CN 112044589 B CN112044589 B CN 112044589B CN 202010924051 A CN202010924051 A CN 202010924051A CN 112044589 B CN112044589 B CN 112044589B
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- chinese chestnut
- screening
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- 238000012216 screening Methods 0.000 title claims abstract description 102
- 235000006667 Aleurites moluccana Nutrition 0.000 title claims abstract description 40
- 240000004957 Castanea mollissima Species 0.000 title claims abstract description 40
- 235000018244 Castanea mollissima Nutrition 0.000 title claims abstract description 40
- 239000012530 fluid Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 37
- 238000005096 rolling process Methods 0.000 claims abstract description 32
- 241001070941 Castanea Species 0.000 claims abstract description 26
- 235000014036 Castanea Nutrition 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000007921 spray Substances 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 9
- 235000013399 edible fruits Nutrition 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 7
- 238000007873 sieving Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/36—Devices therefor, other than using centrifugal force
- B03B5/40—Devices therefor, other than using centrifugal force of trough type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
-
- 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/36—Devices therefor, other than using centrifugal force
- B03B5/40—Devices therefor, other than using centrifugal force of trough type
- B03B2005/405—Devices therefor, other than using centrifugal force of trough type using horizontal currents
-
- 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
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
Landscapes
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
Abstract
The invention provides a device for automatically screening Chinese chestnut, which comprises a material suction device, a fluid primary screening device and a rolling screening device; the material suction device is arranged at one end of the fluid primary screening device, and outputs chestnut materials to the inlet end of the fluid primary screening device through the conveying outlet; the fluid primary screening device is fixedly arranged between the material suction device and the rolling screening device and performs primary screening treatment on the Chinese chestnut materials through an internal fluid medium; the rolling screening device is fixedly arranged at the other end of the fluid primary screening device, three groups of screening openings with different diameter ranges are formed in the rolling screening device, and Chinese chestnut is output along the screening openings according to the diameter ranges independently. The device not only can distinguish the size of chinese chestnut, can also classify with regard to the quality of chinese chestnut, very big reduction cost of labor to improve finished chinese chestnut quality, when reducing repetition human labor, improve fruit growers' economic income, and the screening liquid that uses can recycle, does not improve use cost, and green.
Description
Technical Field
The invention belongs to the field of conveying equipment, and particularly relates to a device for automatically screening Chinese chestnut.
Background
With the development of economy, the living standard of people is continuously improved, the Chinese chestnut is also a daily food for people, the demand of the Chinese chestnut is also continuously improved, and the demand of the market for a large number of high-quality Chinese chestnut can not be met by manpower, so that automation and mechanization are necessary trends. Meanwhile, the sizes of the Chinese chestnut are sorted, so that the economic income of fruit farmers can be improved when the sieved Chinese chestnut is sold.
However, the existing Chinese chestnut screening devices on the market at present are multifunctional and single, the common screening of the size and the quality cannot be realized, the noise pollution of a plurality of sieving machines is large, the hearing of operators can be damaged after long-term use, and the cost of the good and bad screening devices is high and is not in the acceptable range of general fruit growers.
Disclosure of Invention
In order to solve the technical problems, the invention is based on a conveying technology, a water circulation technology and an automatic control technology, and uses a material suction device to transport Chinese chestnut to a liquid screening device for screening Chinese chestnut quality, after screening, the good Chinese chestnut is transported to a rolling screening device by the conveying device for screening Chinese chestnut size, and finally, the sorting of Chinese chestnut quality and size is realized, and the invention further provides an automatic Chinese chestnut screening device, which has the technical scheme that: comprises a material suction device, a fluid preliminary screening device and a rolling screening device; the material suction device is arranged at one end of the fluid primary screening device, and outputs chestnut materials to the inlet end of the fluid primary screening device through the conveying outlet; the fluid primary screening device is fixedly arranged between the material suction device and the rolling screening device and performs primary screening treatment on the Chinese chestnut materials through an internal fluid medium; the rolling screening device is fixedly arranged at the other end of the fluid primary screening device, three groups of screening openings with different diameter ranges are formed in the rolling screening device, and Chinese chestnut is output along the screening openings according to the diameter ranges independently.
As an improvement, the material suction device comprises a feed inlet, a conveying pipeline, a conveying cavity, a filter screen, a suction pump, a conveying outlet and a control valve; one end of the feed inlet is opened, and the other end of the feed inlet is communicated with a conveying pipeline inclined at 5-20 degrees with the horizontal plane to one end part of the conveying cavity; a filter screen in the vertical direction is arranged at the other end part of the conveying cavity; the filter screen is fixedly provided with a suction pump at the other side of the conveying cavity; the suction pump is used for generating negative pressure to suck the chestnut materials into the conveying cavity; the conveying outlet is arranged at the bottom of the conveying cavity and is used for outputting chestnut materials; the control valve is fixedly arranged on one side of the conveying outlet and used for controlling the opening or closing of the conveying outlet.
As an improvement, the fluid primary screening device comprises an inner box, an outer box, a water spray nozzle, a screen, a water suction pump and a conveyor belt, wherein the inner box is integrally arranged in the outer box, and the bottom surface of the inner box is fixedly arranged on one side of the bottom surface of the outer box through a plurality of groups of support columns; the other side of the bottom surface of the outer box is fixedly arranged on a horizontal plane through a plurality of groups of support columns; one end of the conveyor belt is fixedly connected with one end of the material suction device, the other end of the conveyor belt extends into the inner box through the extension, and the edge of the inner box extends out to the end part of the rolling screening device; the water spray nozzles are fixedly arranged on the inner side wall of the inner box perpendicular to the conveying direction of the conveying belt; one end of the screen is fixed at the top of the inner box; the other end of the water spray nozzle is fixedly arranged at the top of the outer box and is arranged on the other side surface of the water spray nozzle relative to the conveying direction of the conveying belt; the water suction pump is fixedly arranged at the bottom of the outer box through a hose and is communicated with fluid between the inner box and the outer box.
As an improvement, a gap of 5-20 mm is arranged between the inner box and the outer box at the bottom, wherein the top end of the inner box is 10-45 mm higher than the top end of the outer box.
As an improvement, one end of the rolling screening device is communicated with the output end of the conveying belt of the fluid primary screening device, and the other end of the rolling screening device is provided with a first collecting device, a second collecting device and a third collecting device.
As an improvement, the rolling screening device comprises three groups of nested sleeves which are symmetrical about the same central axis, and the diameters of the nested sleeves are sequentially from small to large, namely an inner cylinder, a middle cylinder and an outer cylinder; the inner cylinder and the middle cylinder and the outer cylinder are fixedly installed through symmetrical multiple groups of separated bearings, and the inner cylinder and the middle cylinder are driven to rotate through a motor, so that the rotation directions of the inner cylinder and the middle cylinder are opposite.
As an improvement, holes which penetrate through the inner cylinder wall and the middle cylinder wall at intervals are formed in the inner cylinder wall, the upper aperture of the inner cylinder is larger than the upper aperture of the middle cylinder, and the outer cylinder is not provided with penetrating holes.
As an improvement, one end of the three sets of sleeves is close to one side of the fluid primary screening device, the distance between the three sets of sleeves and the side of the fluid primary screening device is from small to large, the three sets of sleeves are sequentially an outer cylinder, an inner cylinder and a middle cylinder, and the other sides of the fluid primary screening device are respectively and independently provided with a first collecting device, a second collecting device and a third collecting device at the other ends of the outer cylinder, the inner cylinder and the middle cylinder.
As an improvement, the first collecting device, the second collecting device and the third collecting device are independently arranged to be communicated with a receiving cavity and communicated with a containing bag or a containing container at the bottom.
The beneficial effects are that: the automatic chestnut screening device provided by the invention can replace manpower to finish the chestnut sorting work by utilizing automation, thereby reducing labor cost and improving labor efficiency. The invention not only can distinguish the sizes of the Chinese chestnut, but also can classify the quality of the Chinese chestnut, greatly reduces the cost, improves the quality of the finished Chinese chestnut, reduces repeated manual labor and simultaneously improves the economic income of fruit farmers. Meanwhile, the screening liquid used in the invention can be recycled, the use cost is not increased, and the method is environment-friendly.
Drawings
Fig. 1 is a schematic structural view of a material sucking device according to the present invention.
FIG. 2 is a cross-sectional view of a fluid primary screening device of the present invention.
Fig. 3 is a front view of the rolling screen apparatus of the present invention.
Fig. 4 is a top view of the rolling screen apparatus of the present invention.
In the accompanying drawings: the material sucking device 1, the fluid primary screening device 2, the rolling screening device, the feeding port 11, the conveying pipeline 12, the conveying cavity 13, the filter screen 14, the suction pump 15, the conveying outlet 16, the control valve 17, the inner box 21, the outer box 22, the water spraying nozzle 23, the screen 24, the water suction pump 25, the conveyor belt 26, the first collecting device 4, the second collecting device 5, the third collecting device 6, the inner barrel 31, the middle barrel 32 and the outer barrel 33.
Detailed Description
The drawings of the invention are further described below in conjunction with the embodiments.
An automatic chestnut screening device comprises a material suction device 1, a fluid primary screening device 2 and a rolling screening device; the material suction device 1 is arranged at one end of the fluid primary screening device 2, and outputs chestnut materials to the inlet end of the fluid primary screening device 2 through a conveying outlet; the fluid primary screening device 2 is fixedly arranged between the material suction device 1 and the rolling screening device, and performs primary screening treatment on the Chinese chestnut materials through an internal fluid medium; the rolling screening device is fixedly arranged at the other end of the fluid primary screening device 2, three groups of screening openings with different diameter ranges are arranged, and Chinese chestnut is output along the screening openings according to the diameter ranges independently.
The material suction device 1 comprises a feed inlet 11, a conveying pipeline 12, a conveying cavity 13, a filter screen 14, a suction pump 15, a conveying outlet 16 and a control valve 17; one end of the feed inlet 11 is opened, and the other end of the feed inlet is communicated with a conveying pipeline 12 which is inclined by 5-20 degrees with the horizontal plane to one end part of the conveying cavity 13; the other end part of the conveying cavity 13 is provided with a filter screen 14 in the vertical direction; the filter screen 14 is fixedly provided with a suction pump 15 at the other side of the conveying cavity 13; the suction pump 15 is used for generating negative pressure to suck the chestnut materials into the conveying cavity 13; the conveying outlet 16 is arranged at the bottom of the conveying cavity 13 and is used for outputting chestnut materials; the control valve 17 is fixedly arranged at one side of the delivery outlet 16 and is used for controlling the opening or closing of the delivery outlet 16. A suction pump 15, optionally configured as a fan, is used to create a rotating negative pressure environment, sucking the chestnut material into the delivery cavity.
The fluid primary screening device 2 comprises an inner box 21, an outer box 22, a water nozzle 23, a screen 24, a water pump 25 and a conveyor belt 26, wherein the inner box 21 is integrally arranged in the outer box 22, and the bottom surface of the inner box is fixedly arranged on one side of the bottom surface of the outer box 22 through a plurality of groups of support columns; the other side of the bottom surface of the outer box 22 is fixedly arranged on a horizontal plane through a plurality of groups of support columns; one end of the conveyor belt 26 is fixedly connected with one end of the material suction device 1, the other end of the conveyor belt extends into the inner box 21, and the edge of the inner box 21 extends to the end part of the rolling screening device; the water spray nozzles 23 are fixedly arranged on the inner side wall of the inner box perpendicular to the conveying direction of the conveying belt 26; one end of the screen 24 is fixed at the top of the inner box 21; the other end is fixedly arranged at the top of the outer box 22 and is arranged on the other side surface of the water spray nozzle 23 relative to the conveying direction of the conveying belt 26; the water pump 25 is fixedly arranged at the bottom of the outer box 22 through a hose and is communicated with fluid between the inner box 21 and the outer box 22.
In the invention, the conveyor belt 26 is arranged into two parts of a conveyor belt and a connecting shaft, two ends of the conveyor belt are provided with a plurality of groups of connecting shafts, at least one group of connecting shafts is fixed on the outer side of the inner box 21, and the other group of connecting shafts is fixed on the inner box 21, wherein the conveyor belt is arranged in the inner box 21, and the conveyor belt arranged in the inner box 21 is arranged in the inner box and fixedly arranged with at least one group of connecting shafts.
A gap of 5-20 mm is arranged between the inner box 21 and the outer box 22 at the bottom, and the gap is used for transferring liquid in the inner box 21, such as circulating water, between the inner box and the outer box along the gap after the liquid is filled, wherein the top end of the inner box 21 is 10-45 mm higher than the top end of the outer box 22.
Preferably, the inner box and the outer box are top-free closed water tanks, the bottom of the inner box is connected with the bottom of the outer box through four support columns, four water spraying nozzles are preferably arranged, the upper edges of the inner box are higher than the upper edges of the outer box, the upper edges of the right walls of the two boxes are connected through inclined screens 24, and in order to realize the separation of Chinese chestnut and water, the other side wall of the inner box is provided with water spraying nozzles in the whole row, and the water spraying nozzles are connected with a water suction pump arranged at the bottom of the outer box through hoses.
The hollow chestnut and the bad chestnut can be layered up and down by the floating principle in water, and at the moment, the inner box is in a state of being filled with water. The good Chinese chestnut enters the inner box along the conveyor belt below the liquid level, passes through the inner box and is transported out of the inner box. When the bad chestnut is conveyed below the liquid level by the conveyor belt, the bad chestnut floats on the surface of the liquid, and then the bad chestnut is flushed away from the screening area by water flow sprayed by the nozzle.
Further, when water is sprayed out by the water spray nozzle and flows into the screening area, floating bad chestnut is taken away and flows out of the screening area, namely, the bad chestnut is placed on the screen 24 and is placed in the floating water separating area, water separation is mainly achieved through a gap between the inner box and the outer box, water flows into the gap, is gathered in the gap between the inner box and the outer box, is pumped into the water spray nozzle by the water suction pump to be sprayed out, water circulation is achieved, the bad chestnut rolls out of the outer box through an inclined iron net on the gap, and finally, water circulation and screening and collection of the bad chestnut are achieved.
The good chinese chestnut through liquid sieving mechanism gets into the roll sieving mechanism under material fortune transmission device's drive, roll sieving mechanism mainly by motor drive, make the rim plate drive the screen cloth and roll and realize the separation of chinese chestnut size, specifically does: one end of the rolling screening device is communicated with the output end of the conveyor belt 26 of the fluid primary screening device 2, and the other end of the rolling screening device is provided with a first collecting device 4, a second collecting device 5 and a third collecting device 6.
The rolling screening device comprises three groups of nested sleeves which are symmetrical about the same central axis, and the diameters of the nested sleeves are sequentially from small to large, namely an inner cylinder 31, a middle cylinder 32 and an outer cylinder 33; the inner cylinder 31 and the middle cylinder 32, and the middle cylinder 32 and the outer cylinder 33 are respectively provided with a plurality of symmetrical groups of separated bearings for fixed installation, and the inner cylinder 31 and the middle cylinder 32 are driven to rotate by a motor in opposite rotation directions.
The inner cylinder 31 and the middle cylinder 32 are provided with holes which are arranged at intervals in a penetrating way, the upper aperture of the inner cylinder 31 is larger than the upper aperture of the middle cylinder 32, and the outer cylinder 33 is not provided with holes which penetrate.
One end of the three sets of sleeves is close to one side of the fluid primary screening device 2, the distances from the side of the fluid primary screening device 2 are sequentially from small to large, namely an outer cylinder 33, an inner cylinder 31 and a middle cylinder 32, and the other ends of the outer cylinder 33, the inner cylinder 31 and the middle cylinder 32 are respectively and independently provided with a first collecting device 4, a second collecting device 5 and a third collecting device 6.
The first collecting device 4, the second collecting device 5 and the third collecting device 6 are independently arranged to be communicated with a receiving cavity and communicated with a containing bag or a containing container at the bottom.
When the rolling screening device screens the chestnut, the driving mode of the rolling screening device is electric driving, the two-stage roller screen mesh and the outer wall are respectively fixed on the inner wheel, the middle wheel and the outer wheel of the wheel disc, the motor and the transmission shaft are in a belt transmission mode, the transmission shaft is driven to rotate through the rotation of the motor, friction transmission is arranged between the transmission shaft and the outer wheel, the motor is started to drive the transmission shaft to rotate, the outer wheel and the outer wall connected to the outer wheel rotate, meanwhile, the belt transmits rotation to the inner wheel and the middle wheel, and further, the reverse rotation of the two-stage screen mesh is realized, and the other end of the screen mesh is provided with a receiving structure in order to ensure the stability of rotation and avoid the leakage of the chestnut when the chestnut is received. When the screening of the quality is finished, the good Chinese chestnut is sent to the inlet of the wheel disc by the conveyor belt, three Chinese chestnut of large, medium and small are screened out by the roller screening device, and then slide out along the bearing structure, thereby finishing the sorting of the Chinese chestnut.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (3)
1. An automatic screening device of chinese chestnut, its characterized in that: comprises a material suction device (1), a fluid primary screening device (2) and a rolling screening device; the material sucking device (1) is arranged at one end of the fluid primary screening device (2) and outputs Chinese chestnut materials to the inlet end of the fluid primary screening device (2) through a conveying outlet; the fluid primary screening device (2) is fixedly arranged between the material suction device (1) and the rolling screening device, and performs primary screening treatment on the Chinese chestnut materials through an internal fluid medium; the rolling screening device is fixedly arranged at the other end of the fluid primary screening device (2), three groups of screening openings with different diameter ranges are arranged, and Chinese chestnut is respectively and independently output along the screening openings according to the diameter ranges;
the material suction device (1) comprises a feed inlet (11), a conveying pipeline (12), a conveying cavity (13), a filter screen (14), a suction pump (15), a conveying outlet (16) and a control valve (17); one end of the feed inlet (11) is open, and the other end of the feed inlet is communicated with a conveying pipeline (12) inclined at an angle of 5-20 degrees with the horizontal plane to one end of the conveying cavity (13); a filter screen (14) in the vertical direction is arranged at the other end part of the conveying cavity (13); the filter screen (14) is fixedly provided with a suction pump (15) at the other side of the conveying cavity (13); the suction pump (15) is used for generating negative pressure to suck the chestnut materials into the conveying cavity (13); the conveying outlet (16) is arranged at the bottom of the conveying cavity (13) and is used for outputting Chinese chestnut materials; the control valve (17) is fixedly arranged at one side of the conveying outlet (16) and is used for controlling the opening or closing of the conveying outlet (16);
the fluid primary screening device (2) comprises an inner box (21), an outer box (22), a water spray nozzle (23), a screen (24), a water suction pump (25) and a conveyor belt (26), wherein the inner box (21) is integrally arranged in the outer box (22), and the bottom surface is fixedly arranged on one side of the bottom surface of the outer box (22) through a plurality of groups of support columns; the other side of the bottom surface of the outer box (22) is fixedly arranged on a horizontal plane through a plurality of groups of support columns; one end of the conveyor belt (26) is fixedly connected with one end of the material suction device (1), the other end of the conveyor belt extends into the inner box (21) through extending, and the edge of the inner box (21) extends to the end part of the rolling screening device; the water spray nozzles (23) are fixedly arranged on the inner side wall of the inner box perpendicular to the conveying direction of the conveying belt (26); one end of the screen (24) is fixed at the top of the inner box (21); the other end of the water-jet valve is fixedly arranged at the top of the outer box (22) and is arranged on the other side surface of the water-jet valve (23) relative to the conveying direction of the conveying belt (26); the water suction pump (25) is fixedly arranged at the bottom of the outer box (22) through a hose, and is communicated with fluid between the inner box (21) and the outer box (22);
one end of the rolling screening device is communicated with the output end of a conveying belt (26) of the fluid primary screening device (2), and the other end of the rolling screening device is provided with a first collecting device (4), a second collecting device (5) and a third collecting device (6);
the rolling screening device comprises three groups of nested sleeves which are symmetrical about the same central axis, and the diameters of the nested sleeves are sequentially from small to large, namely an inner cylinder (31), a middle cylinder (32) and an outer cylinder (33); symmetrical multiple groups of separated bearings are fixedly arranged between the inner cylinder (31) and the middle cylinder (32) and between the middle cylinder (32) and the outer cylinder (33), and the inner cylinder (31) and the middle cylinder (32) are driven to rotate by a motor in opposite rotation directions;
holes which penetrate through and are arranged at intervals are formed in the walls of the inner cylinder (31) and the middle cylinder (32), the upper aperture of the inner cylinder (31) is larger than that of the middle cylinder (32), and the outer cylinder (33) is not provided with penetrating holes;
one end of the three groups of sleeves is close to one side of the fluid primary screening device (2), the distances between the three groups of sleeves and the side of the fluid primary screening device (2) are from small to large, namely an outer cylinder (33), an inner cylinder (31) and a middle cylinder (32), and the other ends of the outer cylinder (33), the inner cylinder (31) and the middle cylinder (32) are respectively and independently provided with a first collecting device (4), a second collecting device (5) and a third collecting device (6).
2. The apparatus for automatically screening chestnut according to claim 1, wherein: a gap of 5-20 mm is arranged between the inner box (21) and the outer box (22) at the bottom, wherein the top end of the inner box (21) is 10-45 mm higher than the top end of the outer box (22).
3. The apparatus for automatically screening chestnut according to claim 1, wherein: the first collecting device (4), the second collecting device (5) and the third collecting device (6) are independently arranged to be communicated with a receiving cavity and communicated with a storage bag or a storage container at the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010924051.9A CN112044589B (en) | 2020-09-04 | 2020-09-04 | Automatic chinese chestnut screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010924051.9A CN112044589B (en) | 2020-09-04 | 2020-09-04 | Automatic chinese chestnut screening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112044589A CN112044589A (en) | 2020-12-08 |
| CN112044589B true CN112044589B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010924051.9A Active CN112044589B (en) | 2020-09-04 | 2020-09-04 | Automatic chinese chestnut screening device |
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| CN (1) | CN112044589B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114471932A (en) * | 2021-09-14 | 2022-05-13 | 红河学院 | Chinese chestnut sorting and grading machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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