CN106862078B - It is a kind of to screen mechanical and plastic grain sizing screening method - Google Patents

It is a kind of to screen mechanical and plastic grain sizing screening method Download PDF

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Publication number
CN106862078B
CN106862078B CN201710106336.XA CN201710106336A CN106862078B CN 106862078 B CN106862078 B CN 106862078B CN 201710106336 A CN201710106336 A CN 201710106336A CN 106862078 B CN106862078 B CN 106862078B
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China
Prior art keywords
screen drum
screening
motor
oblique
screening plant
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CN201710106336.XA
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CN106862078A (en
Inventor
单士睿
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Xingbang New Materials Shandong Co ltd
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Qixia Xingbang New Material Technology Co Ltd
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B9/00Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18Drum screens
    • B07B1/22Revolving drums
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B4/00Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall

Abstract

It is mechanical that the invention discloses a kind of screenings, including pneumatic separation device, oblique screening plant and tail portion screening plant, the pneumatic separation device, oblique screening plant and tail portion screening plant are sequentially connected.The beneficial effects of the present invention are: bulky grain and little particle can be separated first using pneumatic separation device, it is further sorted by oblique screening plant and tail portion screening plant again, the advantage of selection by winnowing is gathered, oblique screening plant and tail portion screening plant use the screening mode of rotary type simultaneously, screening mode noise relative to present shaker vibration obviously can reduce, practical.A kind of sizing screening method of plastic grain has also been devised in the present invention, and plastic grain is divided into A, B, C, D level Four from big to small by it, it is characterized in that mechanical using screening of the present invention.This sizing screening method has the characteristics that convenient, noise is small.

Description

It is a kind of to screen mechanical and plastic grain sizing screening method
Technical field
The present invention relates to a kind of sizing screening methods of screening machinery and plastic grain.
Background technique
Vibrating screen is that common screening is mechanical, is sifted out particle from sieve using the principle of vibration pellet, little particle Fall within sieve, bulky grain is located above sieve and is discharged from another openning, the problem of vibrating screen maximum is that noise is big, in same vehicle In put several vibrating screen speeches and all can't hear.
201610502208 .2 disclose a kind of plastic grain screening plant, propose to carry out sub-sieve modeling by the principle of selection by winnowing Expect particle, but all plastic grains are placed in suspension, then grade screening, efficiency is lower, and difficulty is big, and practicability is not strong.By In there are such problems, it is therefore necessary to improve to existing screening machinery.
Summary of the invention
That designs the purpose of the present invention is to solve the deficiency of above-mentioned technology is a kind of using selection by winnowing and the small sieve of noise Choosing is mechanical.
A kind of screening designed by the present invention is mechanical, including pneumatic separation device, oblique screening plant and tail portion screening plant, institute Pneumatic separation device, oblique screening plant and tail portion screening plant is stated to be sequentially connected.
Further embodiment of the present invention is as follows:
The pneumatic separation device includes casing, bracket and feed hopper, and the casing is located above bracket, and the feed hopper is located at Above casing, it is equipped with feeder in the cabinet top, the feed hopper is located at the top of feeder, and feeder bottom has one A flat strip outlet;Blower is equipped in the casing side and blower opposite side is equipped with air outlet, is set in air outlet There is sieve, is externally provided with wind sleeve in air outlet;The casing lower part be equipped with lower clapboard, lower clapboard two sides be respectively equipped with discharge bucket A and Discharge bucket B, discharge bucket A are located at close to blower side, and discharge bucket B is located remotely from blower side, and the bottom the discharge bucket B has one The outwardly directed inclined selection by winnowing discharge nozzle of root;
The cabinet top is equipped with opening, and the feeder two sides are arranged with guide rod seat, and feeder both ends are equipped with and can lead The guide rod moved in pole socket, a guide rod seat side is fixed with motor A wherein, and motor A is connect with a screw drive, The screw rod passes through the nut bolt being connected on feeder after respective guide rod seat with one, and the guide rod seat is worn for the screw rod It crosses place and is equipped with bearing;
The blower is divided into upper fan A and lower blower B, and upper spacer is equipped in the casing, and the upper spacer is located at upper Between blower A and lower blower B, lower section is equipped with separate hopper A on the left of upper spacer, lower right-hand side is equipped with separate hopper B, the separate hopper A Lower section on the left of the upper spacer is all located at the outlet of the strip of the bottom separate hopper B, and the outlet of separate hopper A is closer to lower blower B; The left side refers to the direction closer to blower;
The oblique screening plant includes shell, upper screen drum, lower screen drum, center-pole, motor B and motor C;The upper screen drum Oblique with lower screen drum and be located in the shell, the outlet of the selection by winnowing discharge nozzle is located in the upper screen drum, it is described on Screen drum tail portion is inserted in lower screen drum and is equipped with each other bearing, top chock is equipped in the case nose, in outer casing back Equipped with step, the upper screen drum is set in the bearing of top chock, and the lower screen drum is set in the bearing of step, institute The upper screen drum and lower screen drum stated are equipped with sieve pore but their two ends are all not provided with sieve pore;The motor B is set to shell Above and the upper screen drum rotation is driven, the motor C is set on shell and the driving lower screen drum rotation, the center-pole pass through The upper screen drum and lower screen drum are equipped with woollen brush base A in upper screen drum, woollen brush base B are equipped in lower screen drum, the woollen brush base A can It is rotatably arranged on the center-pole and is equipped with stop collar in the position that center-pole is located at the both ends woollen brush base A, the woollen brush base B is solid On fixed centrally disposed bar, it is designed with bristle in the woollen brush base A and woollen brush base B, the position of lower part is equipped with oblique in the shell Reclaiming plate is equipped with the oblique discharge port communicated with oblique reclaiming plate on the shell;
Transmission ring is designed on 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 logical The transmission ring crossed on speed reducer and the upper screen drum is sequentially connected, and the motor C passes through the biography on speed reducer and the lower screen drum Rotating ring transmission connection, the revolving speed of the upper screen drum are greater than the revolving speed of the lower screen drum;
The tail portion screening plant includes charging cover, screen cylinder, preceding fixing seat, rear fixing seat, motor D and collecting tank;Institute Fixing seat is equipped with front-end bearing pedestal before stating, and the rear fixing seat is equipped with rear bearing block;The screen cylinder both ends be located at it is described before In the bearing of bearing block and rear bearing block, sieve pore is equipped on the screen cylinder, before the charging is located in front of fixing seat, institute The outlet for stating lower screen drum is located in charging cover, and the outlet of the charging cover is located in the screen cylinder, the collection slot position Below the screen cylinder;The motor D drives the screen cylinder rotation, and door is additionally provided in the middle part of screen cylinder;The center Bar front end is fixed on the lower clapboard after passing through the selection by winnowing discharge nozzle, and the center rod rear end is fixed on the charging cover It is interior;
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 driven by the transmission ring outside speed reducer and the screen cylinder Connection;
Screening designed by the present invention is mechanical, its beneficial effect is: can be by bulky grain and small using pneumatic separation device Grain separates first, then is further sorted by oblique screening plant and tail portion screening plant, and the advantage of selection by winnowing has been gathered, Oblique screening plant and tail portion screening plant use the screening mode of rotary type, the screening relative to present shaker vibration simultaneously Mode noise obviously can reduce, practical.
The invention further relates to 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 it is mechanical using screening of the present invention, the plastic grain to sub-sieve is sent into using elevator Feed hopper, discharge is A grades from discharge bucket A, and collecting out of screen cylinder is B grades, is collected from oblique discharge port and collecting tank It is C grades, collecting from wind sleeve is D grades.This sizing screening method has the characteristics that convenient, noise is small, A, B, C, D tetra- etc. The plastic grain of grade can be packed respectively, identify size and sell.
Detailed description of the invention
Fig. 1 is that embodiment 1 screens mechanical structural schematic diagram;
Fig. 2 is the structural schematic diagram of 1 pneumatic separation device of embodiment;
Fig. 3 is the structural schematic diagram of the oblique screening plant of embodiment 1;
Fig. 4 is the structural schematic diagram of 1 tail portion screening plant of embodiment;
Fig. 5 is the schematic diagram of 2 pneumatic separation device cabinet top of embodiment;
Fig. 6 is the structural schematic diagram of 3 pneumatic separation device of embodiment;
Fig. 7 is the structural schematic diagram of 2 pneumatic separation device of embodiment;
In figure: pneumatic separation device 1, casing 101, bracket 102, feed hopper 103, feeder 104, blower 105, air outlet 106, Sieve 107, 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 rod 115, motor A116, screw rod 117, nut 118, upper fan A119, lower blower 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, top chock 207, step 208, woollen brush base A209, stop collar 210, woollen brush base B211, oblique reclaiming plate 212, tiltedly go out Material mouth 213,
Tail portion screening plant 3, screen cylinder 302, preceding fixing seat 303, rear fixing seat 304, motor D305, is received charging cover 301 Collect slot 306, front-end bearing pedestal 307, rear bearing block 308, sieve pore 309, door 310;
Transmission ring 4;
Speed reducer 5.
Specific embodiment
The present invention will be further described below by way of embodiments in conjunction with the accompanying drawings.
Embodiment 1:
As shown in Figure 1, the described screening of the present embodiment is mechanical, including pneumatic separation device 1, oblique screening plant 2 and tail portion Screening plant 3, the pneumatic separation device 1, oblique screening plant 2 and tail portion screening plant 3 are sequentially connected.
Wherein, as shown in Fig. 2, the pneumatic separation device 1 includes casing 101, bracket 102 and feed hopper 103, the casing 101 are located at 102 top of bracket, and the feed hopper 103 is located at 101 top of casing, feeder is equipped at the top of the casing 101 104, the feed hopper 103 is located at the top of feeder 104, and 104 bottom of feeder has a flat strip outlet;Institute It states 101 side of casing and is equipped with air outlet 106 equipped with blower 105, with 105 opposite side of blower, sieve is equipped in air outlet 106 107, wind sleeve 108 is externally provided in air outlet 106;101 lower part of casing is equipped with lower clapboard 109, and 109 two sides of lower clapboard are set respectively There are discharge bucket A110 and discharge bucket B111, discharge bucket A110 is located at close to 105 side of blower, and discharge bucket B111 is located remotely from blower 105 sides, the bottom the discharge bucket B111 have an outwardly directed inclined selection by winnowing discharge nozzle 112;
As shown in figure 3, the oblique screening plant 2 include shell 201, upper screen drum 202, lower screen drum 203, center-pole 204, Motor B205 and motor C206;The upper screen drum 202 and lower screen drum 203 are obliquely and in the shell 201, the wind The outlet for selecting expects pipe 112 is located in the upper screen drum 202, and upper 202 tail portion of screen drum is inserted in lower screen drum 203 and mutual Between be equipped with bearing, 201 front end of shell be equipped with top chock 207,201 rear end of shell be equipped with step 208, it is described Upper screen drum 202 is set in the bearing of top chock 207, and the lower screen drum 203 is set in the bearing of step 208, described Upper screen drum 202 and lower screen drum 203 are equipped with sieve pore but their two ends are all not provided with sieve pore;The motor B205 is set to On shell 201 and the driving upper screen drum 202 rotates, and the motor C206 is set on shell 201 and the driving lower screen drum 203 Rotation, the center-pole 204 pass through the upper screen drum 202 and lower screen drum 203, and woollen brush base A209 is equipped in upper screen drum 202, It is equipped with woollen brush base B211 in lower 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 the both ends woollen brush base A209 are equipped with stop collar 210, and the woollen brush base B211 is fixed on center-pole 204, Bristle is designed with (between bristle edge and upper screen drum 202 and lower screen drum 203 in the woollen brush base A209 and woollen brush base B211 Away from preferably at 5-10 times of average grain diameter), the position of lower part is equipped with oblique reclaiming plate 212 in the shell 201, on shell 201 Equipped with the oblique discharge port 213 communicated with oblique reclaiming plate 212;
As shown in figure 4, the tail portion screening plant 3 includes charging cover 301, screen cylinder 302, preceding fixing seat 303, fixes afterwards Seat 304, motor D305 and collecting tank 306;The preceding fixing seat 303 is equipped with front-end bearing pedestal 307, it is described after in fixing seat 304 Equipped with rear bearing block 308;302 both ends of screen cylinder are located in the bearing of the front-end bearing pedestal 307 and rear bearing block 308, The screen cylinder 302 is equipped with sieve pore 309, and 303 front of fixing seat, the lower screen drum 203 go out before the charging cover 301 is located at Mouth is located in charging cover 301, and the outlet of the charging cover 301 is located in the screen cylinder 302, the collecting tank 306 In 302 lower section of screen cylinder;The motor D305 drives the screen cylinder 302 to rotate, and is additionally provided with door in the middle part of screen cylinder 302 310;204 front end of center-pole is fixed on the lower clapboard 109 after passing through the selection by winnowing discharge nozzle 112, the center 204 rear end of bar is fixed in the charging cover 301.
And motor driven concrete mode described above are as follows: 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 the transmission ring 4 on speed reducer 5 and the upper screen drum 202 Dynamic connection, the motor C206 are sequentially connected by the transmission ring 4 on speed reducer 5 and the lower screen drum 203, the upper screen drum 202 revolving speed be greater than the lower screen drum 203 revolving speed (presence of speed difference makes particle from upper screen drum 202 to lower screen drum 203 When be easier to sift out from the sieve pore of lower screen drum 203);The screen cylinder 302 is externally provided with transmission ring 4, and the motor D305 passes through Transmission ring 4 outside speed reducer 5 and the screen cylinder 302 is sequentially connected;It is apparent that the mode of motor driven rotation is not limited to This.
The mechanical working principle of the described screening of the present embodiment is: the particle to sub-sieve successively passes through pneumatic separation device 1, tiltedly To screening plant 2 and tail portion screening plant 3, the particle to sub-sieve can use elevator and rise in feed hopper 103, to sub-sieve Particle falls through into feeder 104 from feed hopper 103, and the particle fallen is exported from the flat strip of feeder 104 in the form of sheets, Suitable size can be being adjusted according to the actual situation by the wind-force of blower 105(blower 105) when, biggish particle is because by the wind retrodeviating Turn smaller, eventually enter into the discharge bucket A110 in the left side of lower clapboard 109 and be discharged, lesser particle because wind-engaging post deflection is excessive, from Be discharged outside sieve 107 and be collected in wind sleeve 108, and non-woven fabrics or ordinary polyester cloth can be used from wind sleeve 108(wind sleeve in wind) in row Out, other powder collections are in discharge bucket B111, and are expelled to from the selection by winnowing discharge nozzle 112 of the bottom discharge bucket B111 oblique In the upper screen drum 202 of screening plant 2, upper 202 revolving speed of screen drum is very fast, internal bristle be it is movable, can be changed in stress Position, bristle play the role of a blocking, and the furthermore collective effect of centrifugal force and gravity to particle, and some can pass through The particle of upper 202 sieve pore of screen drum can fall, and particle in addition enters lower screen drum 203, and lower 203 revolving speed of screen drum is relative to upper screen drum 202 is relatively slow, but its bristle be it is fixed, bristle is stronger to the active force of particle, and furthermore centrifugal force and gravity is common Effect, some can be fallen by the particle of lower screen drum 203, guiding of these particles to fall in oblique reclaiming plate 212 It is discharged under effect from oblique discharge port 213;And other particles are discharged into the charging cover of tail portion screening plant 3 from lower screen drum 203 301, and screen cylinder 302 is eventually fallen into, screen cylinder 302 gyrates, and internal particle is finally from the sieve pore of screen cylinder 302 The particle for sifting out, and being eventually positioned in screen cylinder 302 in 309 cannot be discharged because partial size is larger, can finally open the discharge of door 310 It collects.Upper screen drum 202, lower screen drum 203 and the sieve pore of screen cylinder 302 can as it is big, and the hole at sieve can be relatively smaller.
The described screening of the present embodiment is mechanical, its beneficial effect is: can be by bulky grain and small using pneumatic separation device 1 Particle separates first, then is further sorted by oblique screening plant 2 and tail portion screening plant 3, and selection by winnowing has been gathered Advantage, while oblique screening plant 2 and tail portion screening plant 3 are shaken using the screening mode of rotary type relative to present vibrating screen Dynamic screening mode noise obviously can reduce, practical.
It should be understood that elevator can also not had to, but itself is a the conical bottoms of batch can be sieved for feed hopper 103 Portion, and wait sieve material because technological reason is directly stored in wait sieve in batch can.
Embodiment 2:
As shown in figure 5, the described screening of the present embodiment is mechanical, unlike the first embodiment: 101 top of casing Equipped with opening 113,104 two sides of feeder are arranged with guide rod seat 114, and 104 both ends of feeder are equipped with can be in guide rod seat 114 Mobile guide rod 115,114 side of guide rod seat is fixed with motor A116, motor A116 and a screw rod 117 wherein Transmission connection, the screw rod 117 pass through respective guide rod seat 114 after with 118 bolt of the nut being connected on feeder 104, The guide rod seat 114 is equipped with bearing for the screw rod 117 place of passing through.
The described screening of the present embodiment is mechanical, in motor A116(preferably with stepper motor) under the action of, feeder 104 can move left and right, and the different granular sizes that decision is discharged from discharge bucket A110 of 104 position of feeder, feeder 104 is got over It close to blower, has more particles and is fallen from discharge bucket A110, feeder 104 is further away from blower, and only biggish particle is Discharge can be fallen from discharge bucket A110, be can according to need and artificially adjusted.
Embodiment 3:
As shown in Figure 6,7, the described screening of the present embodiment is mechanical, and unlike the first embodiment: the blower 105 divides For upper fan A119 and lower blower B120, upper spacer 121 is equipped in the casing 101, the upper spacer 121 is located at upper fan Between A119 and lower blower B120,121 left side lower section of upper spacer is equipped with separate hopper A122, lower right-hand side is equipped with separate hopper B123, The separate hopper A122 and the outlet of the strip of the bottom separate hopper B123 are all located at the 121 left side lower section of upper spacer, and separate hopper The outlet of A122 is closer to lower blower B120;The left side refers to closer to the direction of blower 105;
The improvement of the present embodiment is equally applicable to the scheme of embodiment 2.
The described screening of the present embodiment is mechanical, and bulky grain, which is equivalent to, has carried out selection by winnowing twice, and bulky grain is upper for the first time Partition 121 is exported from the strip of separate hopper A122 and is discharged every to the left side, and because it is closer to lower blower B120, they are finally also only It can be discharged from discharge bucket A110;And certain this bulky grain for the first time because of a variety of causes (such as mutually collide, initial position) by every Plate 121 is every to the right, they are after the strip of separate hopper B123 outlet discharge at second, under the action of lower blower B120 not It is enough excessive deflection, is finally also discharged from discharge bucket A110, such mode can as far as possible arranges bulky grain at pneumatic separation device 1 Out, after reduction road oblique screening plant 2 and tail portion screening plant 3 pressure.
Embodiment 4:
The present embodiment is related to a kind of sizing screening method of plastic grain, it plastic grain is divided into A, B from big to small, C, D level Four, it is characterized in that using the machinery of screening described in 1-3 of the embodiment of the present invention, using elevator by the plastics to sub-sieve Particle is sent into feed hopper 103, and discharge is A grades from discharge bucket A, and collecting out of screen cylinder 302 is B grades, from oblique discharge port It is C grades with collecting tank collection, collecting from wind sleeve is D grades.This sizing screening method spy small with convenient, noise Point can replace traditional vibrating screen.
Above-described embodiment is merely illustrative, it will be apparent that, the protection scope of this patent is not limited to the above embodiments.To upper The protection scope of this patent should be fallen by stating various equivalent modifications made by embodiment.

Claims (8)

1. a kind of screening is mechanical, it is characterised in that including pneumatic separation device (1), oblique screening plant (2) and tail portion screening plant (3), the pneumatic separation device (1), oblique screening plant (2) and tail portion screening plant (3) are sequentially connected;
The pneumatic separation device (1) includes casing (101), bracket (102) and feed hopper (103), and the casing (101) is located at bracket (102) top, the feed hopper (103) are located above casing (101), and feeder is equipped at the top of the casing (101) (104), the feed hopper (103) is located at the top of feeder (104), and feeder (104) bottom has a flat strip Outlet;Blower (105) are equipped in the casing (101) side and blower (105) opposite side is equipped with air outlet (106), are being gone out Sieve (107) are equipped in air port (106), are externally provided with wind sleeve (108) in air outlet (106);Casing (101) lower part is equipped with down Partition (109), lower clapboard (109) two sides are respectively equipped with discharge bucket A (110) and discharge bucket B (111), and discharge bucket A (110) is located at Close to blower (105) side, discharge bucket B (111) is located remotely from blower (105) side, and discharge bucket B (111) bottom has A piece outwardly directed inclined selection by winnowing discharge nozzle (112);
The oblique screening plant (2) includes shell (201), upper screen drum (202), lower screen drum (203), center-pole (204), motor B (205) and motor C (206);The upper screen drum (202) and lower screen drum (203) are oblique and interior positioned at the shell (201), The outlet of the selection by winnowing discharge nozzle (112) is located in the upper screen drum (202), and upper screen drum (202) tail portion is inserted in lower sieve In cylinder (203) and each other equipped with bearing, top chock (207) are equipped in the shell (201) front end, after shell (201) End is equipped with step (208), and the upper screen drum (202) is set in the bearing of top chock (207), the lower screen drum (203) In the bearing of step (208), the upper screen drum (202) and lower screen drum (203) be equipped with sieve pore but they two A end is all not provided with sieve pore;The motor B (205) is set on shell (201) and driving upper screen drum (202) rotation, The motor C (206) is set on shell (201) and driving lower screen drum (203) rotation, the center-pole (204) pass through institute Screen drum (202) and lower screen drum (203) are stated, is equipped with woollen brush base A (209) in upper screen drum (202), is set in lower screen drum (203) Have woollen brush base B (211), the woollen brush base A (209) is rotatably provided on the center-pole (204) and in center-pole (204) position Stop collar (210) are equipped in the position at woollen brush base A (209) both ends, the woollen brush base B (211) is fixed at center-pole (204) On, it is designed with bristle in the woollen brush base A (209) and woollen brush base B (211), the position of the interior lower part of the shell (201) is equipped with oblique Reclaiming plate (212) is equipped with the oblique discharge port (213) communicated with oblique reclaiming plate (212) on shell (201).
2. screening according to claim 1 is mechanical, it is characterized in that opening (113) is equipped at the top of the casing (101), it is described Feeder (104) two sides are arranged with guide rod seat (114), and feeder (104) both ends are led equipped with what can be moved in guide rod seat (114) To bar (115), guide rod seat (114) side is fixed with motor A (116) wherein, motor A (116) and a screw rod (117) it is sequentially connected, which passes through respective guide rod seat (114) and be connected to the nut on feeder (104) with one afterwards (118) bolt, the guide rod seat (114) are equipped with bearing for the screw rod (117) place of passing through.
3. screening according to claim 1 is mechanical, it is characterized in that the blower (105) is divided into upper fan A (119) and leeward Machine B (120) is equipped with upper spacer (121) in the casing (101), the upper spacer (121) be located at upper fan A (119) and under Between blower B (120), lower section is equipped with separate hopper A (122) on the left of upper spacer (121), lower right-hand side is equipped with separate hopper B (123), The outlet of the strip of the separate hopper A (122) and separate hopper B (123) bottom is all located at lower section on the left of the upper spacer (121), and The outlet of separate hopper A (122) is closer to lower blower B (120);The left side refers to the direction closer to blower (105).
4. screening according to claim 1 is mechanical, it is characterized in that on the front end stack shell of the upper screen drum (202) and lower sieve It is designed with transmission ring (4) on the rear end stack shell of cylinder (203), the motor B (205) passes through speed reducer (5) and the upper screen drum (202) transmission ring (4) transmission connection on, the motor C (206) pass through the biography on speed reducer (5) and the lower screen drum (203) Rotating ring (4) transmission connection, the revolving speed of the upper screen drum (202) are greater than the revolving speed of the lower screen drum (203).
5. screening according to claim 1 is mechanical, it is characterized in that the tail portion screening plant (3) include charging cover (301), Screen cylinder (302), preceding fixing seat (303), rear fixing seat (304), motor D (305) and collecting tank (306);The preceding fixing seat (303) front-end bearing pedestal (307) are equipped with, the rear fixing seat (304) is equipped with rear bearing block (308);The screen cylinder (302) Both ends are located in the bearing of the front-end bearing pedestal (307) and rear bearing block (308), and sieve pore is equipped on the screen cylinder (302) (309), the charging cover (301) is located in front of preceding fixing seat (303), and the outlet of the lower screen drum (203) is located at the charging It covers in (301), the outlet of the charging cover (301) is located in the screen cylinder (302), and the collecting tank (306) is located at described Below screen cylinder (302);The motor D (305) drives screen cylinder (302) rotation, is additionally provided in the middle part of screen cylinder (302) Door (310);The lower clapboard (109) are fixed on after passing through the selection by winnowing discharge nozzle (112) in center-pole (204) front end On, center-pole (204) rear end is fixed in the charging cover (301).
6. screening according to claim 5 is mechanical, it is characterized in that the screen cylinder (302) is in broad in the middle, narrowing toward each end shape Shape.
7. screening according to claim 5 is mechanical, it is characterized in that the screen cylinder (302) is externally provided with transmission ring (4), it is described Motor D (305) is sequentially connected by the transmission ring (4) of speed reducer (5) and the screen cylinder (302) outside.
8. a kind of sizing screening method of plastic grain, plastic grain is divided into A, B, C, D level Four from big to small, feature by it It is that the plastic grain to sub-sieve is sent into using elevator by feed hopper (103) using screening machinery described in claim 1, from Discharge is A grades at discharge bucket A, is B grades from interior collect of screen cylinder (302), is C from oblique discharge port and collecting tank collection Grade, collecting from wind sleeve is D grades.
CN201710106336.XA 2017-02-27 2017-02-27 It is a kind of to screen mechanical and plastic grain sizing screening method Active CN106862078B (en)

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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
CN105032763A (en) * 2015-08-28 2015-11-11 长沙深湘通用机器有限公司 Sorting machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN105032763A (en) * 2015-08-28 2015-11-11 长沙深湘通用机器有限公司 Sorting machine

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