CN106862078A - A kind of sizing screening method for screening machinery and plastic grain - Google Patents
A kind of sizing screening method for screening machinery and plastic grain Download PDFInfo
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- CN106862078A CN106862078A CN201710106336.XA CN201710106336A CN106862078A CN 106862078 A CN106862078 A CN 106862078A CN 201710106336 A CN201710106336 A CN 201710106336A CN 106862078 A CN106862078 A CN 106862078A
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- Prior art keywords
- screen drum
- screening
- motor
- oblique
- shell
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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
- 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
-
- 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
-
- 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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- 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
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
Abstract
The invention discloses one kind screening machinery, including pneumatic separation device, oblique screening plant and afterbody screening plant, the pneumatic separation device, oblique screening plant and afterbody screening plant are sequentially connected.The beneficial effects of the invention are as follows：Bulky grain and little particle can first be separated using pneumatic separation device, further sorted by oblique screening plant and afterbody screening plant again, the advantage of selection by winnowing is gathered, oblique screening plant and afterbody screening plant use the screening mode of rotary type simultaneously, screening mode noise relative to present shaker vibration can substantially reduce, practical.The present invention have also been devised a kind of sizing screening method of plastic grain, and plastic grain is divided into A, B, C, D level Four from big to small for it, it is characterized in that using screening machinery of the present invention.This sizing screening method has the characteristics of convenient, noise is small.
Description
Technical field
The present invention relates to a kind of sizing screening method for screening machinery and plastic grain.
Background technology
Vibratory sieve is conventional screening machinery, and it is sifted out particle from screen cloth using the principle of vibration material, little particle
Screen cloth, bulky grain are fallen within positioned at screen cloth top and from the discharge of another openning, the maximum problem of vibratory sieve is big noise, in same car
It is interior to put several vibratory sieve speeches and all can't hear.
201610502208 .2 disclose a kind of plastic grain screening plant, and it proposes that carrying out sub-sieve by the principle of selection by winnowing moulds
Material particle, but all plastic grains are placed in suspension, then level screening, less efficient, difficulty is big, and practicality is not strong.By
It is such in there are problems that, it is therefore necessary to be improved to existing screening machinery.
The content of the invention
A kind of use selection by winnowing and the small sieve of noise designed the invention aims to solve the deficiency of above-mentioned technology
Choosing machinery.
A kind of screening machinery designed by the present invention, including pneumatic separation device, oblique screening plant and afterbody screening plant, institute
Pneumatic separation device, oblique screening plant and afterbody screening plant is stated to be sequentially connected.
Further scheme of the invention is as follows：
The pneumatic separation device includes casing, support and feed hopper, and the casing is located at support top, and the feed hopper is located at casing
Top, feeder is provided with the cabinet top, and the feed hopper is located at the top of feeder, and feeder bottom is flat with one
Flat strip outlet；Blower fan being provided with the casing side and blower fan opposite side being provided with air outlet, sieve is provided with air outlet
Net, wind sleeve is externally provided with air outlet；The casing bottom is provided with lower clapboard, and lower clapboard is respectively provided on two sides with discharge bucket A and discharging
Bucket B, discharge bucket A are located near blower fan side, and discharge bucket B is located remotely from blower fan side, the discharge bucket B bottoms have one to
The inclined selection by winnowing discharge nozzle for overhanging；
The cabinet top is provided with opening, and the feeder both sides are arranged with guide rod seat, and feeder two ends are provided with can be in guide rod seat
The guide post of interior movement, wherein a guide rod seat side be fixed with motor A, motor A is connected with a screw drive, the spiral shell
Bar passes through place with a nut bolt being connected on feeder, the guide rod seat after passing through respective guide rod seat for the screw rod
It is provided with bearing；
The blower fan is divided into fan A and lower blower fan B, and upper spacer is provided with the casing, and the upper spacer is located at fan A
And lower blower fan B between, upper spacer left side lower section is provided with separate hopper A, lower right-hand side and is provided with separate hopper B, the separate hopper A and sub-material
The strip outlet of bucket B bottoms is all located at upper spacer left side lower section, and separate hopper A outlet closer to lower blower fan B；Described
A left side refers to the direction closer to blower fan；
The oblique screening plant includes shell, upper screen drum, lower screen drum, center-pole, motor B and motor C；The upper screen drum is with
Screen drum is oblique and in the shell, and the outlet of the selection by winnowing discharge nozzle is located in the upper screen drum, the upper screen drum
Afterbody is inserted in lower screen drum and is provided with bearing each other, and top chock is provided with the case nose, is provided with outer casing back
Step, the upper screen drum is in the bearing of top chock, and the lower screen drum is described in the bearing of step
Upper screen drum and lower screen drum are provided with sieve aperture but their two ends are all not provided with sieve aperture；The motor B on the shell and
The upper screen drum is driven to rotate, the motor C is on shell and drives the lower screen drum to rotate, and the center-pole passes through described
Upper screen drum and lower screen drum, are provided with woollen brush base A in upper screen drum, woollen brush base B, the woollen brush base A are provided with lower screen drum rotatable
It is arranged on the center-pole and is provided with spacing ring in the position that center-pole is located at woollen brush base A two ends, the woollen brush base B is fixed and set
Put on center-pole, bristle is designed with the woollen brush base A and woollen brush base B, the position of bottom is provided with tiltedly discharging in the shell
Plate, is provided with the oblique discharging opening communicated with oblique reclaiming plate on shell；
Transmission ring is designed with the front end stack shell of the upper screen drum and on the rear end stack shell of lower screen drum, the motor B is by subtracting
Transmission ring drive connection on fast machine and the upper screen drum, the motor C is by the transmission ring on reductor and the lower screen drum
Drive connection, the rotating speed of the rotating speed more than the lower screen drum of the upper screen drum；
The afterbody screening plant includes charging cover, screen cylinder, preceding fixed seat, rear fixed seat, motor D and collecting tank；Before described
Fixed seat is provided with front-end bearing pedestal, and the rear fixed seat is provided with rear bearing block；The screen cylinder two ends are located at the fore bearing
In the bearing of seat and rear bearing block, be provided with sieve aperture on the screen cylinder, the charging is located at preceding fixed seat front, it is described under
The outlet of screen drum is located in the charging cover, and the outlet of the charging cover is located in the screen cylinder, and the collecting tank is located at institute
State screen cylinder lower section；The motor D drives the screen cylinder to rotate, and door is additionally provided with the middle part of screen cylinder；Before described center-pole
Hold and be fixed on the lower clapboard through after the selection by winnowing discharge nozzle, the center rod rear end is fixed in the charging cover；
The screen cylinder is in broad in the middle, narrowing toward each end shape；
The screen cylinder is externally provided with transmission ring, and the motor D is connected by reductor with the transmission ring outside the screen cylinder；
Screening designed by the present invention is mechanical, and its beneficial effect is：Can be first by bulky grain and little particle using pneumatic separation device
First separate, then further sorted by oblique screening plant and afterbody screening plant, gathered the advantage of selection by winnowing, while
Oblique screening plant and afterbody screening plant use the screening mode of rotary type, relative to the screening mode of present shaker vibration
Noise can substantially reduce, practical.
The present invention have also been devised a kind of sizing screening method of plastic grain, it plastic grain is divided into A from big to small,
B, C, D level Four, it is characterized in that using screening machinery of the present invention, the plastic grain that will treat sub-sieve using lifting sends into charging
Bucket, from discharge bucket A at discharge be A grade, from screen cylinder collection be B grades, from oblique discharging opening and collecting tank collection be C
Level, what is collected from wind sleeve is D grades.This sizing screening method has the characteristics of convenient, noise is small, tetra- grades of A, B, C, D
Plastic grain can each pack, identify size and sell.
Brief description of the drawings
Fig. 1 is the structural representation that embodiment 1 screens machinery；
Fig. 2 is the structural representation of the pneumatic separation device of embodiment 1；
Fig. 3 is the structural representation of the oblique screening plant of embodiment 1；
Fig. 4 is the structural representation of the afterbody screening plant of embodiment 1；
Fig. 5 is the schematic diagram of the pneumatic separation device cabinet top of embodiment 2；
Fig. 6 is the structural representation of the pneumatic separation device of embodiment 3；
Fig. 7 is the structural representation of the pneumatic separation device of embodiment 2；
In figure：Pneumatic separation device 1, casing 101, support 102, feed hopper 103, feeder 104, blower fan 105, air outlet 106, screen cloth
107th, wind sleeve 108, lower clapboard 109, discharge bucket A110, discharge bucket B111, selection by winnowing discharge nozzle 112, opening 113, guide rod seat 114,
Guide post 115, motor A116, screw rod 117, nut 118, fan A119, lower blower fan B120, upper spacer 121, separate hopper
A122, separate hopper B123；
Oblique screening plant 2, shell 201, upper screen drum 202, lower screen drum 203, center-pole 204, motor B205, motor C206, on
Bearing block 207, step 208, woollen brush base A209, spacing ring 210, woollen brush base B211, oblique reclaiming plate 212, oblique discharging opening
213、
Afterbody screening plant 3, charging cover 301, screen cylinder 302, preceding fixed seat 303, rear fixed seat 304, motor D305, collecting tank
306th, front-end bearing pedestal 307, rear bearing block 308, sieve aperture 309, door 310；
Transmission ring 4；
Reductor 5.
Specific embodiment
Below by embodiment combination accompanying drawing, the invention will be further described.
Embodiment 1：
As shown in figure 1, the screening machinery described by the present embodiment, including the screening of pneumatic separation device 1, oblique screening plant 2 and afterbody
Device 3, the pneumatic separation device 1, oblique screening plant 2 and afterbody screening plant 3 are sequentially connected.
Wherein, as shown in Fig. 2 the pneumatic separation device 1 includes casing 101, support 102 and feed hopper 103, the casing
101 are located at the top of support 102, and the feed hopper 103 is located at the top of casing 101, and feeder is provided with the top of the casing 101
104, the feed hopper 103 is located at the top of feeder 104, and the bottom of feeder 104 has a flat strip outlet；Institute
State that the side of casing 101 is provided with blower fan 105 and the opposite side of blower fan 105 is provided with air outlet 106, screen cloth is provided with air outlet 106
107, it is externally provided with wind sleeve 108 in air outlet 106；The bottom of the casing 101 is provided with lower clapboard 109, and the both sides of lower clapboard 109 set respectively
There are discharge bucket A110 and discharge bucket B111, discharge bucket A110 to be located near the side of blower fan 105, discharge bucket B111 is located remotely from blower fan
105 sides, the discharge bucket B111 bottoms have an outwardly directed inclined selection by winnowing discharge nozzle 112；
As shown in figure 3, the oblique screening plant 2 includes shell 201, upper screen drum 202, lower screen drum 203, center-pole 204, motor
B205 and motor C206；Obliquely and in the shell 201, the selection by winnowing goes out for the upper screen drum 202 and lower screen drum 203
The outlet of expects pipe 112 is located in the upper screen drum 202, and the afterbody of upper screen drum 202 is inserted in lower screen drum 203 and sets each other
There is bearing, top chock 207 is provided with the front end of the shell 201, step 208, the upper sieve are provided with the rear end of shell 201
In the bearing of top chock 207, the lower screen drum 203 is located in the bearing of step 208 cylinder 202, described upper sieve
Cylinder 202 and lower screen drum 203 is provided with sieve aperture but their two ends are all not provided with sieve aperture；The motor B205 is located at shell
On 201 and the upper screen drum 202 is driven to rotate, the motor C206 is on shell 201 and drives 203 turns of the lower screen drum
Dynamic, the center-pole 204 passes through the upper screen drum 202 and lower screen drum 203, woollen brush base A209 is provided with upper screen drum 202, under
Woollen brush base B211 is provided with screen drum 203, the woollen brush base A209 is rotatably provided on the center-pole 204 and in center-pole
204 positions for being located at woollen brush base A209 two ends are provided with spacing ring 210, and the woollen brush base B211 is fixedly installed on center-pole 204,
Bristle is designed with the woollen brush base A209 and woollen brush base B211（Between between bristle edge and upper screen drum 202 and lower screen drum 203
Away from preferably at 5-10 times of average grain diameter）, the position of bottom is provided with oblique reclaiming plate 212 in the shell 201, on shell 201
It is provided with the oblique discharging opening 213 communicated with oblique reclaiming plate 212；
As shown in figure 4, the afterbody screening plant 3 includes charging cover 301, screen cylinder 302, preceding fixed seat 303, rear fixed seat
304th, motor D305 and collecting tank 306；The preceding fixed seat 303 is provided with front-end bearing pedestal 307, is set in the rear fixed seat 304
There is rear bearing block 308；The two ends of the screen cylinder 302 are located in the bearing of the front-end bearing pedestal 307 and rear bearing block 308, in institute
State screen cylinder 302 and be provided with sieve aperture 309, the charging cover 301 is located at the front of preceding fixed seat 303, the outlet of the lower screen drum 203
In the charging cover 301, the outlet of the charging cover 301 is located in the screen cylinder 302, and the collecting tank 306 is located at
The lower section of the screen cylinder 302；The motor D305 drives the screen cylinder 302 to rotate, and door is additionally provided with the middle part of screen cylinder 302
310；The described front end of center-pole 204 is fixed on the lower clapboard 109 after passing through the selection by winnowing discharge nozzle 112, the center
The rear end of bar 204 is fixed in the charging cover 301.
And motor driving concrete mode described above is：On the front end stack shell of the upper screen drum 202 and lower screen drum 203
Rear end stack shell on be designed with transmission ring 4, the motor B205 is passed by reductor 5 with the transmission ring 4 on the upper screen drum 202
Dynamic connection, the motor C206 is connected by reductor 5 with the transmission ring 4 on the lower screen drum 203, the upper screen drum
Rotating speed of 202 rotating speed more than the lower screen drum 203（The presence of speed difference causes particle from upper screen drum 202 to lower screen drum 203
When be easier to be sifted out from the sieve aperture of lower screen drum 203）；The screen cylinder 302 is externally provided with transmission ring 4, and the motor D305 passes through
Reductor 5 is connected with the transmission ring 4 outside the screen cylinder 302；It is apparent that the mode of motor-driven rotation is not limited to
This.
Described by the present embodiment screening machinery operation principle be：Treat sub-sieve particle sequentially pass through pneumatic separation device 1, tiltedly
To screening plant 2 and afterbody screening plant 3, in treating that the particle of sub-sieve can must rise to feed hopper 103 using elevator, sub-sieve is treated
Particle fall through into feeder 104 from feed hopper 103, the particle fallen from the flat strip outlet of feeder 104 is in piece
Shape, by blower fan 105（The wind-force of blower fan 105 can adjust suitable size according to actual conditions）When, larger particle is because of wind-engaging
Post deflection is smaller, eventually enters into the discharge bucket A110 in the left side of lower clapboard 109 and discharges, and less particle is turned over because wind-engaging is retrodeviated
Greatly, it is collected in wind sleeve 108 from the outer discharge of screen cloth 107, and wind is from wind sleeve 108（Wind sleeve can use non-woven fabrics or ordinary polyester cloth）
Middle discharge, and other powder collections are in discharge bucket B111, and selection by winnowing discharge nozzle 112 from discharge bucket B111 bottoms is expelled to
In the upper screen drum 202 of oblique screening plant 2, the rotating speed of upper screen drum 202 is very fast, its internal bristle be it is movable, can in stress
Change position, bristle plays the role of a stop, and the furthermore collective effect of centrifugal force and gravity to particle, understands some energy
Can be fallen by the particle of the sieve aperture of upper screen drum 202, particle in addition enters lower screen drum 203, and the lower rotating speed of screen drum 203 is relative to upper sieve
Cylinder 202 is relatively slow, but its bristle is fixed, and bristle is stronger to the active force of particle, and furthermore centrifugal force and gravity are total to
Same-action, some be able to can be fallen by the particle of lower screen drum 203, these particle leading in oblique reclaiming plate 212 fallen
Discharged from oblique discharging opening 213 under effect；And other particles are discharged into the charging of afterbody screening plant 3 from lower screen drum 203
Cover 301, and screen cylinder 302 is eventually fallen into, screen cylinder 302 gyrates, its final sieve from screen cylinder 302 of internal particle
Sifted out in hole 309, and the particle being eventually positioned in screen cylinder 302 can not be discharged because particle diameter is larger, can finally open the row of door 310
Go out to collect.The sieve aperture of upper screen drum 202, lower screen drum 203 and screen cylinder 302 can as it is big, and hole at screen cloth can relatively small one
A bit.
Screening described by the present embodiment is mechanical, and its beneficial effect is：Can be by bulky grain and small using pneumatic separation device 1
Particle is separated first, then is further sorted by oblique screening plant 2 and afterbody screening plant 3, has gathered selection by winnowing
Advantage, while oblique screening plant 2 and afterbody screening plant 3 are shaken using the screening mode of rotary type relative to present vibratory sieve
Dynamic screening mode noise can substantially reduce, practical.
It should be noted that：Also can be without elevator, but inherently one conical bottom of batch can be sieved of feed hopper 103
Portion, and treat sieve material and be directly stored in batch can be sieved because of technological reason.
Embodiment 2：
As shown in figure 5, the screening machinery described by the present embodiment, as different from Example 1：The top of the casing 101 is provided with
Opening 113, the both sides of the feeder 104 are arranged with guide rod seat 114, and the two ends of feeder 104 are provided with can move in guide rod seat 114
Guide post 115, wherein a side of guide rod seat 114 be fixed with motor A116, motor A116 is driven with a screw rod 117
Connection, the screw rod 117 through respective guide rod seat 114 after with a bolt of nut 118 being connected on feeder 104, it is described
Guide rod seat 114 is provided with bearing for the screw rod 117 through place.
Screening machinery described by the present embodiment, in motor A116（Preferably with stepper motor）In the presence of, feeder
104 can move left and right, and the different granular sizes that will be determined from discharge bucket A110 discharges of the position of feeder 104, feeder 104 is got over
Near blower fan, have more particles and fallen from discharge bucket A110, further away from blower fan, only larger particle is just for feeder 104
Discharge can be fallen from discharge bucket A110, can artificially adjusted as needed.
Embodiment 3：
As shown in Figure 6,7, the screening machinery described by the present embodiment, as different from Example 1：105 points of the blower fan is upper
Blower fan A119 and lower blower fan B120, is provided with upper spacer 121 in the casing 101, and the upper spacer 121 is located at fan A119
And lower blower fan B120 between, the left side of upper spacer 121 lower section is provided with separate hopper A122, lower right-hand side and is provided with separate hopper B123, described
The strip outlet of separate hopper A122 and separate hopper B123 bottoms is all located at the left side of the upper spacer 121 lower section, and separate hopper A122
Outlet closer to lower blower fan B120；A described left side refers to closer to the direction of blower fan 105；
The improvement of the present embodiment is equally applicable to the scheme of embodiment 2.
Screening machinery described by the present embodiment, bulky grain is upper for the first time equivalent to selection by winnowing twice, bulky grain has been carried out
Dividing plate 121 exports discharge every to the left side from the strip of separate hopper A122, and because it is closer to lower blower fan B120, they are finally also only
Can be discharged from discharge bucket A110；And certain this bulky grain is for the first time because of a variety of causes（Such as mutual collision, original position）By on every
Plate 121 every to the right, at second they from after the strip outlet discharge of separate hopper B123, in the presence of lower blower fan B120 not
Excessive deflection is enough to, is finally also discharged from discharge bucket A110, such mode can try one's best and bulky grain is arranged at pneumatic separation device 1
Go out, the pressure of the oblique screening plant 2 in road and afterbody screening plant 3 after reduction.
Embodiment 4：
The present embodiment designs a kind of sizing screening method of plastic grain, and plastic grain is divided into A, B, C, D from big to small for it
Level Four, it is characterized in that using the screening machinery described in embodiment of the present invention 1-3, will treat that the plastic grain of sub-sieve send using lifting
Enter feed hopper 103, what is discharged from discharge bucket A is A grades, from the interior collection of screen cylinder 302 is B grades, from oblique discharging opening and collection
What groove was collected is C grades, and what is collected from wind sleeve is D grades.The characteristics of that this sizing screening method has is convenient, noise is small, can be with
Instead of traditional vibratory sieve.
Above-described embodiment is merely illustrative, it will be apparent that, the protection domain of this patent is not limited to above-described embodiment.To upper
Stating the various equivalent modifications that embodiment made should fall into the protection domain of this patent.
Claims (10)
1. a kind of screening is mechanical, it is characterised in that including pneumatic separation device（1）, oblique screening plant（2）With afterbody screening plant
（3）, the pneumatic separation device（1）, oblique screening plant（2）With afterbody screening plant（3）It is sequentially connected.
2. screening according to claim 1 is mechanical, it is characterized in that the pneumatic separation device（1）Including casing（101）, support
（102）And feed hopper（103）, the casing（101）Positioned at support（102）Top, the feed hopper（103）Positioned at casing
（101）Top, in the casing（101）Top is provided with feeder（104）, the feed hopper（103）Positioned at feeder（104）'s
Top, feeder（104）Bottom has a flat strip outlet；In the casing（101）Side is provided with blower fan（105）、
With blower fan（105）Opposite side is provided with air outlet（106）, in air outlet（106）Inside it is provided with screen cloth（107）, in air outlet（106）
It is externally provided with wind sleeve（108）；The casing（101）Bottom is provided with lower clapboard（109）, lower clapboard（109）It is respectively provided on two sides with discharging
Bucket A（110）With discharge bucket B（111）, discharge bucket A（110）Positioned near blower fan（105）Side, discharge bucket B（111）It is located remotely from
Blower fan（105）Side, the discharge bucket B（111）Bottom has an outwardly directed inclined selection by winnowing discharge nozzle（112）.
3. screening according to claim 1 is mechanical, it is characterized in that the casing（101）Top is provided with opening（113）, it is described
Feeder（104）Both sides are arranged with guide rod seat（114）, feeder（104）Two ends are provided with can be in guide rod seat（114）Interior movement is led
To bar（115）, a guide rod seat wherein（114）Side is fixed with motor A（116）, motor A（116）With a screw rod
（117）Drive connection, the screw rod（117）Through respective guide rod seat（114）Afterwards feeder is connected to one（104）On nut
（118）Bolt, the guide rod seat（114）For the screw rod（117）Bearing is provided with through place.
4. screening according to claim 1 is mechanical, it is characterized in that the blower fan（105）It is divided into fan A（119）And leeward
Machine B（120）, in the casing（101）Inside it is provided with upper spacer（121）, the upper spacer（121）Positioned at fan A（119）With under
Blower fan B（120）Between, upper spacer（121）Left side lower section is provided with separate hopper A（122）, lower right-hand side be provided with separate hopper B（123）,
The separate hopper A（122）With separate hopper B（123）The strip outlet of bottom is all located at the upper spacer（121）Left side lower section, and
Separate hopper A（122）Outlet closer to lower blower fan B（120）；A described left side refers to closer to blower fan（105）Direction.
5. screening according to claim 2 is mechanical, it is characterized in that the oblique screening plant（2）Including shell（201）, on
Screen drum（202）, lower screen drum（203）, center-pole（204）, motor B（205）With motor C（206）；The upper screen drum（202）With under
Screen drum（203）Obliquely and positioned at the shell（201）It is interior, the selection by winnowing discharge nozzle（112）Outlet be located at the upper sieve
Cylinder（202）It is interior, the upper screen drum（202）Afterbody is inserted in lower screen drum（203）It is interior and be provided with bearing each other, in the shell
（201）Front end is provided with top chock（207）, in shell（201）Rear end is provided with step（208）, the upper screen drum（202）If
In top chock（207）Bearing in, the lower screen drum（203）Located at step（208）Bearing in, described upper screen drum
（202）With lower screen drum（203）Two ends for being provided with sieve aperture but they are all not provided with sieve aperture；The motor B（205）It is located at
Shell（201）Go up and drive the upper screen drum（202）Rotate, the motor C（206）Located at shell（201）Described in upper and driving
Lower screen drum（203）Rotate, the center-pole（204）Through the upper screen drum（202）With lower screen drum（203）, in upper screen drum（202）
Inside it is provided with woollen brush base A（209）, in lower screen drum（203）Inside it is provided with woollen brush base B（211）, the woollen brush base A（209）It is rotatable to set
In the center-pole（204）Above and in center-pole（204）Positioned at woollen brush base A（209）The position at two ends is provided with spacing ring（210）,
The woollen brush base B（211）It is fixedly installed on center-pole（204）On, in the woollen brush base A（209）With woollen brush base B（211）All set
There are bristle, the shell（201）The position of interior bottom is provided with oblique reclaiming plate（212）, in shell（201）It is provided with and oblique reclaiming plate
（212）The oblique discharging opening for communicating（213）.
6. screening according to claim 5 is mechanical, it is characterized in that the upper screen drum（202）Front end stack shell on and lower sieve
Cylinder（203）Rear end stack shell on be designed with transmission ring（4）, the motor B（205）By reductor（5）With the upper screen drum
（202）On transmission ring（4）Drive connection, the motor C（206）By reductor（5）With the lower screen drum（203）On biography
Rotating ring（4）Drive connection, the upper screen drum（202）Rotating speed be more than the lower screen drum（203）Rotating speed.
7. screening according to claim 5 or 6 is mechanical, it is characterized in that the afterbody screening plant（3）Covered including charging
（301）, screen cylinder（302）, preceding fixed seat（303）, rear fixed seat（304）, motor D（305）And collecting tank（306）；Before described
Fixed seat（303）It is provided with front-end bearing pedestal（307）, the rear fixed seat（304）It is provided with rear bearing block（308）；The screening
Cylinder（302）Two ends are located at the front-end bearing pedestal（307）And rear bearing block（308）Bearing in, in the screen cylinder（302）On set
There is sieve aperture（309）, the charging cover（301）It is located at preceding fixed seat（303）Front, the lower screen drum（203）Outlet be located at institute
State charging cover（301）It is interior, the charging cover（301）Outlet be located at the screen cylinder（302）It is interior, the collecting tank（306）Position
In the screen cylinder（302）Lower section；The motor D（305）Drive the screen cylinder（302）Rotate, in screen cylinder（302）Middle part
It is additionally provided with door（310）；Described center-pole（204）Front end passes through the selection by winnowing discharge nozzle（112）After be fixed on the lower clapboard
（109）On, the center-pole（204）The charging cover is fixed in rear end（301）It is interior.
8. screening according to claim 7 is mechanical, it is characterized in that the screen cylinder（302）In broad in the middle, narrowing toward each end shape
Shape.
9. screening according to claim 7 is mechanical, it is characterized in that the screen cylinder（302）It is externally provided with transmission ring（4）, it is described
Motor D（305）By reductor（5）With the screen cylinder（302）Outer transmission ring（4）Drive connection.
10. a kind of sizing screening method of plastic grain, plastic grain is divided into A, B, C, D level Four from big to small for it, and it is special
It is mechanical using the screening described in claim 1 to levy, and the plastic grain that will treat sub-sieve using lifting sends into feed hopper（103, from going out
What is discharged at hopper A is A grade, and what is collected in the screen cylinder 302 is B grades, and from oblique discharging opening and collecting tank collection is C grades, from
What is collected in wind sleeve is D grades.
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| CN112535015A (en) * | 2020-11-05 | 2021-03-23 | 汕头大学 | Harvester with harvesting and cleaning functions |
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| CN201644397U (en) * | 2010-04-14 | 2010-11-24 | 陈一定 | Integrated screening device |
| WO2013166823A1 (en) * | 2012-05-07 | 2013-11-14 | 西安交通大学 | Double-air chamber multifunctional winnowing machine for municipal solid waste |
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| CN201231228Y (en) * | 2008-07-25 | 2009-05-06 | 张占英 | Separation device of plant seed and fruit skin in wine dregs |
| CN201644397U (en) * | 2010-04-14 | 2010-11-24 | 陈一定 | Integrated screening device |
| WO2013166823A1 (en) * | 2012-05-07 | 2013-11-14 | 西安交通大学 | Double-air chamber multifunctional winnowing machine for municipal solid waste |
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