CN108325847A - Centrifuge negative pressure grain screening agricultural apparatus and method - Google Patents
Centrifuge negative pressure grain screening agricultural apparatus and method Download PDFInfo
- Publication number
- CN108325847A CN108325847A CN201810071314.9A CN201810071314A CN108325847A CN 108325847 A CN108325847 A CN 108325847A CN 201810071314 A CN201810071314 A CN 201810071314A CN 108325847 A CN108325847 A CN 108325847A
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- China
- Prior art keywords
- negative pressure
- bottom support
- sieve
- rotary bottom
- sieve chamber
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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
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
- B07B7/10—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force having air recirculating within the apparatus
-
- 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
-
- 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
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/06—Grains, e.g. cereals, wheat, rice, corn
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of centrifugation negative pressure grain screening agricultural apparatus and methods, device includes feed pipe, screening bucket, blanking pedestal and drying unit, the feed pipe setting connection is in the upper end of screening bucket, the bottom of the screening bucket is connected to blanking pedestal, the discharging end of the blanking pedestal is corresponding with the feed end of drying unit, and blanking pedestal support is set on drying unit.The configuration of the present invention is simple, principle is simple, can carry out centrifugal screening according to the different-grain diameter grade of cereal, while the cereal screened out has completed the removal of impurity, effect is good.
Description
Technical field
The invention belongs to agricultural machinery correlative technology fields.
Background technology
Agricultural machinery circulation industry is an open, higher industry of Market Orientation, there are distributors in industry more, collection
The features such as moderate is low, market competition is lack of standardization so that the competition of agricultural machinery circulation market is very fierce.In addition, as country is to agricultural
The reinforcement of support on policy dynamics, the increase of the allowance for purchasing agricultural machinery project funds bring the same of further prosperity to Farm Machinery Market
When, also aggravate the market competition in industry.
Invention content
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention to provide a kind of centrifugation negative pressure grain screening
Agricultural apparatus and method, simple in structure, principle is simple, can carry out centrifugal screening according to the different-grain diameter grade of cereal, together
When the cereal that screens out completed the removal of impurity, effect is good.
Technical solution：To achieve the above object, technical scheme is as follows：
Centrifuge negative pressure grain screening agricultural apparatus, including feed pipe, screening bucket, blanking pedestal and drying unit, it is described into
Expects pipe setting connection is connected in the upper end of screening bucket, the bottom of the screening bucket with blanking pedestal, the blanking of the blanking pedestal
End is corresponding with the feed end of drying unit, and blanking pedestal support is set on drying unit.
Further, the screening bucket includes negative pressure channel exocoel, negative pressure inner cavity, screen tray, rotary bottom support, electricity from outside to inside
Machine and telescoping cylinder, the negative pressure channel exocoel surround setting in negative pressure inner cavity periphery, the negative pressure channel exocoel and negative pressure inner cavity
Between be connected to by upper air hole, air inlet, the bottom of the negative pressure channel exocoel are provided at the top of the negative pressure inner cavity
It is provided with and communicated with extractor fan, the bottom of the extractor fan is provided with gas outlet；The telescoping cylinder is supported by holder to be arranged
The movable end of lower section in negative pressure inner cavity, the telescoping cylinder is provided with motor, the bottom at the driving end and rotary bottom support of the motor
Portion's central vertical setting；It is lifted on the rotary bottom support and is equipped with screen tray, and rotate driving screen tray centrifugal rotation；The sieve
Disk is arranged above feed pipe.
Further, further include kuppe, the kuppe is perforative frustum cone structure, and upper surface is small, and lower face is big；Institute
State kuppe and be provide with installation down from motor, the bottom of the kuppe is erected on holder, the lower face of the kuppe with
A ring gap channel is kept between negative pressure inner cavity, is used for blanking.
Further, the bottom of the screening bucket, and position is provided with a circle below the lower face of the kuppe
Air port is oozed, the size for oozing air port is adjustable.
Further, it is uniformly distributed on the outer wall of the kuppe and is provided with electric heating wire.
Further, the rotary bottom support by centre to edge by circumference be disposed with intermediolateral column, several interior loop pillars and
Several outer loop pillars, the height of the intermediolateral column are more than the height of interior loop pillar, and the height of the interior loop pillar is more than the height of outer loop pillar；
The intermediolateral column is located at the centre of rotary bottom support, and the outer loop pillar is located at an outer ring at least circumference for rotary bottom support, the inner ring
Column is on at least circumference between intermediolateral column and outer loop pillar.
Further, the screen tray includes being disposed with the first stepped sieve chamber, the by circumference by centre to edge
Two sieve chambers and third sieve chamber, and by the first sieve chamber higher than the second sieve chamber present position, the second sieve chamber is higher than third sieve chamber present position；
Several first sieve pores are offered on the wall body of the first sieve chamber, and several second sieves are offered on the wall body of the second sieve chamber
Hole, offers several third sieve pores on the wall body of third sieve chamber, first sieve pore, the second sieve pore and third sieve pore hole
Diameter is sequentially reduced；And if it is described first sieve chamber, second sieve chamber and third sieve chamber bottom offer respectively perforative first leakage hole,
Dry second leakage hole and several third leakage holes, the size of first leakage hole, several second leakage holes and several third leakage holes respectively with
The size of intermediolateral column, several interior loop pillars and several outer loop pillars matches.
Further, the shape of the blanking pedestal is perforative inverted round table structure, and upper surface is big, and lower face is small.
Centrifuge the working method of negative pressure grain screening agricultural apparatus：
Extractor fan is opened, two air circulation streams of formation are largely first air streams by being penetrated among air inlet
Into screen tray, air hole is spread outward to by screen tray center, then continues along and is advanced into exhausting dress under negative pressure channel exocoel
Set the negative pressuren zone to be formed；
Fraction is Article 2 air stream air port is upward along the outer wall of kuppe by oozing, and air stream carries the heat of electric heating wire
Amount so that heat is full of the negative pressure inner cavity of kuppe area above；Then this burst of air stream is incorporated in first air stream；
Cereal is entered by feed pipe in the first sieve chamber of screen tray, when the cereal that the first sieve intracavitary enters reaches threshold values,
Feed pipe stops charging, and rotary bottom support is bonded matching with screen tray completely, and rotary bottom support drives screen tray to centrifuge circle rotation, the first sieve
Cereal in chamber gradually sieves chamber by the first sieve chamber according to particle size dispersion to the second sieve chamber and third；The particulate matter of impurity grain size with
First air stream takes negative pressure inner cavity out of；
Rotary bottom support stops rotating, and rotary bottom support passes through the upward support of limiting plate, rotary bottom support and sieve to bottom offset, screen tray
Disk being embedded mated condition completely by being detached from；Rotary bottom support is mutually disengaged to bottom offset, loop pillar outer first with third leakage hole, and
Outer loop pillar generates the first spacing between each other with third leakage hole, and rotary bottom support rotates again, continues rotation and drives screen tray rotation, the
Path cereal centrifugation in one spacing is thrown away；
Rotary bottom support stops rotating, and rotary bottom support continues to bottom offset, and interior loop pillar is mutually disengaged with the second leakage hole, and loop pillar
The second spacing is generated between each other with the second leakage hole, and rotary bottom support rotates again, and screen tray is static, the central diameter cereal in the second spacing
Centrifugation is thrown away；
Rotary bottom support stops rotating, and rotary bottom support continues to bottom offset, and intermediolateral column is mutually disengaged with the first leakage hole, screen tray with
It being completely disengaged between rotary bottom support, intermediolateral column and the first leakage hole generate third spacing between each other, and rotary bottom support rotates again, the
Major diameter cereal centrifugation in three spacing is thrown away；
Rotary bottom support rotate to intermediolateral column, several interior loop pillars and several outer loop pillars respectively with first sieve chamber, second sieve chamber and
Rotary bottom support is raised above when third sieve chamber matching is to corresponding to, until being bonded matching completely with screen tray.
Advantageous effect：The configuration of the present invention is simple, principle is simple, can be carried out according to the different-grain diameter grade of cereal centrifugal
Screening, while the cereal screened out has completed the removal of impurity, effect is good.
1) it realizes that cereal is realized according to different-grain diameter grade by the method for centrifugation to detach, the process detached herein
In, it is adjoint with negative pressure system, the impurity in cereal detach herein during as negative-pressure adsorption is gone out, the difference of separation
The cereal of grain size passes sequentially through the blanking of blanking pedestal to specified position in a different order；In separation process, it can open
Desiccant electric heating system so that negative pressure inner cavity forms the temperature that drying has, dry high during realizing separation
Warm negative pressure gas flow penetrates between each grain, and drying effect is splendid.
2) kuppe shape design and installation site design so that most of air inlet be from enterprising gas port into
Enter, prevents the excessive too strong inlet air flow in lower section from causing excessive interference to whereabouts cereal；Again matching design have ooze air port and its
Ooze the design position in air port so that the high temperature air stream that negative pressure inner cavity can diffuse to form from the bottom to top so that dry effect
Fruit it is further preferred that, such design, also avoid dry heat system directly be arranged too close to the drying caused by screen tray position
Cereal caused by excessively destroys；Such high temperature air stream is flowing simultaneously, avoids non-flowing type hot-air to a certain region
It is long-term baking caused by cereal destroy.
3) design structure and working method that the rotation between screen tray and rotary bottom support drives and gradually disengages, cleverly
So that cereal realizes that the separation by the progress of grain size grade gradually and orderly, simple in structure, excellent take full advantage of negative pressure inner cavity
Inner space and drying heating effect utilization.
4) what is flowed in negative pressure channel exocoel is the stream of hot air extracted out from negative pressure inner cavity, can by this burst of stream of hot air
With effectively so that the temperature of negative pressure inner cavity is constant, and internal whole temperature graded region tends to be constant for a long time, no
By ectocine.
5) it is uniformly distributed on the outer wall of kuppe and is provided with electric heating wire to cereal prebake, after cereal is by grain size separation
Further further dried in the drying unit that blanking pedestal corresponds to blanking.
Description of the drawings
Accompanying drawing 1 is the structural representation of the present invention one；
Attached drawing 2 is the structural schematic diagram two of the present invention；
Attached drawing 3 is the structural schematic diagram three of the present invention；
Attached drawing 4 is the structural schematic diagram four of the present invention；
Attached drawing 5 is the partial structural diagram one of the present invention；
Attached drawing 6 is the partial structural diagram two of the present invention.
Specific implementation mode
The present invention is further described below in conjunction with the accompanying drawings.
Such as attached drawing 1,2,3 and 4, negative pressure grain screening agricultural apparatus, including feed pipe 1, screening bucket 2, blanking pedestal 3 are centrifuged
With drying unit 4, the setting of the feed pipe 1 connection connects in the upper end of screening bucket 2, the bottom of the screening bucket 2 with blanking pedestal 3
Logical, the discharging end of the blanking pedestal 3 is corresponding with the feed end of drying unit 4, and the blanking pedestal 3 support is set to drying
On device 4.The shape of the blanking pedestal 3 is perforative inverted round table structure, and upper surface is big, and lower face is small.
The screening bucket 2 includes negative pressure channel exocoel 11, negative pressure inner cavity 12, screen tray 13, rotary bottom support 14, electricity from outside to inside
Machine 15 and telescoping cylinder 16, the negative pressure channel exocoel 11 surround setting in 12 periphery of negative pressure inner cavity, the negative pressure channel exocoel 11
It is connected to by upper air hole 121 between negative pressure inner cavity 12, the top of the negative pressure inner cavity 12 is provided with air inlet 9, described
The bottom of negative pressure channel exocoel 11 is provided with and communicated with extractor fan 6, and the bottom of the extractor fan 6 is provided with gas outlet 61；Institute
State telescoping cylinder 16 supports the lower section for being set to negative pressure inner cavity 12, the movable end of the telescoping cylinder 16 to be provided with motor by holder 8
15, the driving end of the motor 15 and the bottom center of rotary bottom support 14 are vertically arranged；Cooperation is lifted on the rotary bottom support 14
It is provided with screen tray 13, and rotates driving 13 centrifugal rotation of screen tray；The screen tray 13 is arranged above feed pipe 1.
What is flowed in negative pressure channel exocoel 11 is the stream of hot air extracted out from negative pressure inner cavity, can by this burst of stream of hot air
With effectively so that the temperature of negative pressure inner cavity is constant, and internal whole temperature graded region tends to be constant for a long time, no
By ectocine.
Further include kuppe 17 such as attached drawing 6, the kuppe 17 is perforative frustum cone structure, and upper surface is small, lower face
Greatly；The kuppe 17 is provide with installation down from motor 15, and the bottom of the kuppe 17 is erected on holder 8, the water conservancy diversion
A ring gap channel is kept between the lower face and negative pressure inner cavity 12 of cover 17, is fallen for cereal.The bottom of the screening bucket 2,
And position is provided with a circle and oozes air port 7 below the lower face of the kuppe 17, the size for oozing air port 7 is adjustable,
The position for oozing the setting of air port 7 may be implemented lower section to enter the air stream of negative pressure inner cavity to be shallow bid, while can also pass through change
The size for oozing air port 7 further realizes..It is uniformly distributed on the outer wall of the kuppe 17 and is provided with electric heating wire 171.Kuppe
Shape design and installation site design so that most of air inlet is entered from enterprising gas port, prevent below mistake
Big too strong inlet air flow causes whereabouts cereal excessive interference；Matching design has the design position oozed air port and its ooze air port again
Set so that the high temperature air stream that negative pressure inner cavity can diffuse to form from the bottom to top so that drying effect it is further preferred that, it is such to set
It is broken too close to cereal caused by the drying caused by screen tray position excessively to also avoid the directly setting of dry heat system for meter
It is bad；Such high temperature air stream is flowing simultaneously, avoids non-flowing type hot-air caused by some region of long-term baking
Cereal destroys.
Such as attached drawing 5, the rotary bottom support 14 is disposed with intermediolateral column 141, several inner rings by centre to edge by circumference
Column 142 and several outer loop pillars 143, the height of the intermediolateral column 141 are more than the height of interior loop pillar 142, the height of the interior loop pillar 142
Height of the degree more than outer loop pillar 143；The intermediolateral column 141 is located at the centre of rotary bottom support 14, and the outer loop pillar 143 is located at rotation
The outer ring of a collet 14 at least circumference, an at least circumference of the interior loop pillar 142 between intermediolateral column 141 and outer loop pillar 143
On.
The screen tray 13 includes being disposed with the first stepped sieve chamber 131, second by circumference by centre to edge to sieve
Chamber 132 and third sieve chamber 133, and by the first sieve chamber 131 higher than the second 132 present position of sieve chamber, the second sieve chamber 132 is sieved higher than third
133 present position of chamber；Several first sieve pores 134 are offered on the wall body of the first sieve chamber 131, the second sieve chamber 132
Several second sieve pores 135 are offered on wall body, and several third sieve pores 136 are offered on the wall body of the third sieve chamber 133, it is described
The aperture of first sieve pore 134, the second sieve pore 135 and third sieve pore 136 is sequentially reduced；And the first sieve chamber 131, second sieves chamber
132 and third sieve chamber 133 bottom offer respectively perforative first leakage hole 137, several second leakage holes 138 and several thirds leakage
Hole 139, the size of first leakage hole 137, several second leakage holes 138 and several third leakage holes 139 respectively with intermediolateral column 141,
The size of several interior loop pillars 142 and several outer loop pillars 143 matches.Between screen tray and rotary bottom support rotation driving and gradually
The design structure and working method of disengaging, cleverly so that cereal realizes the separation by the progress of grain size grade gradually and orderly, structure
Simply, excellent takes full advantage of the utilization of the inner space of negative pressure inner cavity and the heating effect of drying.
Centrifuge the working method of negative pressure grain screening agricultural apparatus：
Extractor fan 6 is opened, two air circulation streams of formation are largely first air streams by being worn among air inlet 9
It penetrates into screen tray 13, air hole 121 is spread outward to by 13 center of screen tray, then continues along 11 downlink of negative pressure channel exocoel
The negative pressuren zone formed into extractor fan 6；
Fraction is that Article 2 air stream is upward along the outer wall of kuppe 17 by oozing air port 7, and air stream carries electric heating wire
171 heat so that heat is full of the negative pressure inner cavity 12 of 17 area above of kuppe；Then this burst of air stream is incorporated to first sky
In air-flow；
Cereal is entered by feed pipe 1 in first sieve chamber 131 of screen tray 13, when the cereal entered in the first sieve chamber 131 reaches
When to threshold values, feed pipe 1 stops charging, and rotary bottom support 14 is bonded matching completely with screen tray 13, and rotary bottom support 14 drives screen tray 13
Circle rotation is centrifuged, the cereal in the first sieve chamber 131 is by the first sieve chamber 131 gradually according to particle size dispersion to the second sieve 132 He of chamber
Third sieves chamber 133；The particulate matter of impurity grain size takes negative pressure inner cavity 12 out of with first air stream；
Rotary bottom support 14 stops rotating, and rotary bottom support 14 passes through 18 upward support of limiting plate, rotation to bottom offset, screen tray 13
Collet 14 is with screen tray 13 by being detached from being embedded mated condition completely；Rotary bottom support 14 is to bottom offset, loop pillar 143 outer first and
Three leakage holes 139 are mutually disengaged, and outer loop pillar 143 generates the first spacing between each other with third leakage hole 139, and rotary bottom support 14 is again
Rotation continues rotation and screen tray 13 is driven to rotate, and the path cereal centrifugation in the first spacing is thrown away；
Rotary bottom support 14 stops rotating, and rotary bottom support 14 continues to bottom offset, and interior loop pillar 142 and the second leakage hole 138 are mutually
It is detached from, and loop pillar 142 and the second leakage hole 138 generate the second spacing between each other, rotary bottom support 14 rotates again, and screen tray 13 is quiet
Only, the central diameter cereal centrifugation in the second spacing is thrown away；
Rotary bottom support 14 stops rotating, and rotary bottom support 14 continues to bottom offset, and intermediolateral column 141 and the first leakage hole 137 are mutually
It is detached from, is completely disengaged between screen tray 13 and rotary bottom support 14, between 137 mutual generation third of intermediolateral column 141 and the first leakage hole
Away from rotary bottom support 14 rotates again, and the major diameter cereal centrifugation in third spacing is thrown away；
The rotation of rotary bottom support 14 sieves chamber with first respectively to intermediolateral column 141, several interior loop pillars 142 and several outer loop pillars 143
131, rotary bottom support 14 is raised above when the second sieve chamber 132 and the third sieve matching of chamber 133 are to corresponding to, until being pasted completely with screen tray 13
Close matching.
It realizes that cereal is realized according to different-grain diameter grade by the method for centrifugation to detach, during detaching herein,
It is adjoint with negative pressure system, the impurity in cereal detach herein during as negative-pressure adsorption is gone out, the different grains of separation
The cereal of diameter passes sequentially through the blanking of blanking pedestal to specified position in a different order；In separation process, it can open dry
Dry electric heating system so that negative pressure inner cavity forms the temperature that drying has, during realizing separation, dry high temperature
Negative pressure gas flow penetrates between each grain, and drying effect is splendid.
The above is only a preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. centrifuging negative pressure grain screening agricultural apparatus, it is characterised in that：Including feed pipe (1), screening bucket (2), blanking pedestal
(3), feed pipe (1) the setting connection is in the upper end of screening bucket (2), and the bottom of the screening bucket (2) and blanking pedestal (3) are even
It is logical.
2. centrifugation negative pressure grain screening agricultural apparatus according to claim 1, it is characterised in that：The screening bucket (2) by
It is outer to include negative pressure channel exocoel (11), negative pressure inner cavity (12), screen tray (13), rotary bottom support (14), motor (15) and stretch to interior
Cylinder (16), the negative pressure channel exocoel (11) surround setting in negative pressure inner cavity (12) periphery, the negative pressure channel exocoel (11) with
It is connected to by upper air hole (121) between negative pressure inner cavity (12), air inlet is provided at the top of the negative pressure inner cavity (12)
(9), the bottom of the negative pressure channel exocoel (11) is provided with and communicated with extractor fan (6), the bottom setting of the extractor fan (6)
There is gas outlet (61)；The telescoping cylinder (16) is set to the lower section of negative pressure inner cavity (12), the telescoping cylinder by holder (8) support
(16) movable end is provided with motor (15), and the driving end of the motor (15) is vertical with the bottom center of rotary bottom support (14) to be set
It sets；It is lifted on the rotary bottom support (14) and is equipped with screen tray (13), and rotate driving screen tray (13) centrifugal rotation；The sieve
Disk (13) is arranged above feed pipe (1).
3. centrifugation negative pressure grain screening agricultural apparatus according to claim 1, it is characterised in that：It further include kuppe
(17), the kuppe (17) is perforative frustum cone structure, and upper surface is small, and lower face is big；The kuppe (17) is from motor
(15) be provide with installation down, the bottom of the kuppe (17) is erected on holder (8), the lower face of the kuppe (17) with
A ring gap channel is kept between negative pressure inner cavity (12).
4. centrifugation negative pressure grain screening agricultural apparatus according to claim 3, it is characterised in that：The screening bucket (2)
Bottom, and position is provided with a circle and oozes air port (7) below the lower face of the kuppe (17), the air port (7) of oozing
Size is adjustable.
5. centrifugation negative pressure grain screening agricultural apparatus according to claim 3, it is characterised in that：The kuppe (17)
It is uniformly distributed on outer wall and is provided with electric heating wire (171).
6. centrifugation negative pressure grain screening agricultural apparatus according to claim 1, it is characterised in that：The rotary bottom support (14)
It is disposed with intermediolateral column (141), several interior loop pillars (142) and several outer loop pillars (143) by circumference by centre to edge, it is described
The height of intermediolateral column (141) is more than the height of interior loop pillar (142), and the height of the interior loop pillar (142) is more than outer loop pillar (143)
Highly；The intermediolateral column (141) is located at the centre of rotary bottom support (14), and the outer loop pillar (143) is located at rotary bottom support (14)
An outer ring at least circumference, the interior loop pillar (142) are located on at least circumference between intermediolateral column (141) and outer loop pillar (143).
7. centrifugation negative pressure grain screening agricultural apparatus according to claim 1 or 6, it is characterised in that：The screen tray (13)
Include being disposed with the first stepped sieve chamber (131), the second sieve chamber (132) and third by circumference by centre to edge to sieve chamber
(133), by the first sieve chamber (131) higher than second sieve chamber (132) present position, the second sieve chamber (132) is higher than third sieve chamber (133)
Present position；Several first sieve pores (134) are offered on the wall body of the first sieve chamber (131), the second sieve chamber (132)
Several second sieve pores (135) are offered on wall body, and several third sieve pores are offered on the wall body of the third sieve chamber (133)
(136), the aperture of first sieve pore (134), the second sieve pore (135) and third sieve pore (136) is sequentially reduced；And described first
Sieve chamber (131), second sieve chamber (132) and third sieve chamber (133) bottom offer perforative first leakage hole (137) respectively if,
Dry second leakage hole (138) and several third leakage holes (139), first leakage hole (137), several second leakage holes (138) and several
The size of third leakage hole (139) respectively with intermediolateral column (141), the size phase of several interior loop pillars (142) and several outer loop pillars (143)
Matching.
8. centrifugation negative pressure grain screening agricultural apparatus according to claim 1, it is characterised in that：The blanking pedestal (3)
Shape be perforative inverted round table structure, upper surface is big, and lower face is small.
9. centrifugation negative pressure grain screening agricultural apparatus according to claim 1, it is characterised in that：It further include drying unit
(4), the discharging end of the blanking pedestal (3) is corresponding with the feed end of drying unit (4), and the blanking pedestal (3) support is set
It is placed on drying unit (4).
10. centrifuging the working method of negative pressure grain screening agricultural apparatus, it is characterised in that：
Extractor fan (6) is opened, two air circulation streams are formed, is largely that first air stream is worn by air inlet (9) is intermediate
It penetrates into screen tray (13), air hole (121) is spread outward to by screen tray (13) center, then continues along negative pressure channel exocoel
(11) negative pressuren zone of extractor fan (6) formation is advanced under；
Fraction is that Article 2 air stream is upward along the outer wall of kuppe (17) by oozing air port (7), and air stream carries electric heating wire
(171) heat so that heat is full of the negative pressure inner cavity (12) of kuppe (17) area above；Then this burst of air stream is incorporated to
In one air stream；
Cereal is entered by feed pipe (1) in the first sieve chamber (131) of screen tray (13), when the paddy entered in the first sieve chamber (131)
When object reaches threshold values, feed pipe (1) stops charging, and rotary bottom support (14) is bonded matching, rotary bottom support completely with screen tray (13)
(14) driving screen tray (13) centrifuges circle rotation, and the cereal in the first sieve chamber (131) is by the first sieve chamber (131) gradually according to grain size
It is dispersed to the second sieve chamber (132) and third sieve chamber (133)；The particulate matter of impurity grain size is taken out of with first air stream in negative pressure
Chamber (12)；
Rotary bottom support (14) stops rotating, rotary bottom support (14) to bottom offset, screen tray (13) by limiting plate (18) upward support,
Rotary bottom support (14) is with screen tray (13) by being detached from being embedded mated condition completely；Rotary bottom support (14) is outer first to bottom offset
Loop pillar (143) is mutually disengaged with third leakage hole (139), and outer loop pillar (143) generates first between each other with third leakage hole (139)
Spacing, rotary bottom support (14) rotate again, continue rotation and screen tray (13) is driven to rotate, the path cereal centrifugal drying in the first spacing
Go out；
Rotary bottom support (14) stops rotating, and rotary bottom support (14) continues to bottom offset, interior loop pillar (142) and the second leakage hole (138)
It being mutually disengaged, and loop pillar (142) generates the second spacing between each other with the second leakage hole (138), rotary bottom support (14) rotates again,
Screen tray (13) is static, and the central diameter cereal centrifugation in the second spacing is thrown away；
Rotary bottom support (14) stops rotating, and rotary bottom support (14) continues to bottom offset, intermediolateral column (141) and the first leakage hole (137)
Be mutually disengaged, completely disengaged between screen tray (13) and rotary bottom support (14), intermediolateral column (141) and the first leakage hole (137) mutually it
Between generate third spacing, rotary bottom support (14) rotates again, and the major diameter cereal centrifugation in third spacing is thrown away；
Rotary bottom support (14) rotation is to intermediolateral column (141), several interior loop pillars (142) and several outer loop pillars (143) respectively with first
Rotary bottom support (14) is raised above when sieve chamber (131), the second sieve chamber (132) and third sieve chamber (133) are matched to corresponding to, until with
Screen tray (13) fitting matching completely.
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| CN112570275A (en) * | 2020-11-25 | 2021-03-30 | 蚌埠市优思特环保设备科技有限公司 | Industrial solid waste harmless treatment equipment and treatment method |
| CN116678191A (en) * | 2023-08-03 | 2023-09-01 | 德州市德城区冠宏机电设备有限公司 | Drying device is used in nanometer zinc oxide preparation |
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| CN116678191A (en) * | 2023-08-03 | 2023-09-01 | 德州市德城区冠宏机电设备有限公司 | Drying device is used in nanometer zinc oxide preparation |
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| CN108325847B (en) | 2019-11-12 |
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