CN108246625A - A kind of particulate thing is collected, screening installation - Google Patents

A kind of particulate thing is collected, screening installation Download PDF

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Publication number
CN108246625A
CN108246625A CN201810144830.XA CN201810144830A CN108246625A CN 108246625 A CN108246625 A CN 108246625A CN 201810144830 A CN201810144830 A CN 201810144830A CN 108246625 A CN108246625 A CN 108246625A
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CN
China
Prior art keywords
groove body
nacelle
support
particulate thing
collected
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Granted
Application number
CN201810144830.XA
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Chinese (zh)
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CN108246625B (en
Inventor
廖础勤
廖晓东
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Individual
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Individual
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Priority to CN201810144830.XA priority Critical patent/CN108246625B/en
Publication of CN108246625A publication Critical patent/CN108246625A/en
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Publication of CN108246625B publication Critical patent/CN108246625B/en
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    • 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
    • B07B7/00Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/083Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
    • 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
    • B07B7/00Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/10Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force having air recirculating within the apparatus
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

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  • Separating Particles In Gases By Inertia (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The present invention relates to a kind of collections of particulate thing, screening installation, including supporting support, outer nacelle and the interior nacelle in outer nacelle, supporting support include be hollow structure base platform, support groove body and two support tubes, support groove body and support tube are communicated with outer nacelle, on the left of base platform and support groove body bottom is respectively equipped with exhaust outlet, outer nacelle bottom is equipped with sundries discharge port, it is equipped on the left of interior nacelle and inhales object groove body, it inhales object groove body bottom and is equipped with and inhale object mouth, motor is installed in interior nacelle, centrifugation blade and deceleration eccentric shaft are installed on motor, deceleration eccentric shaft is equipped with flight, interior nacelle bottom is equipped with net object discharge port, net object material receiving tube is connected on net object discharge port.Present device fast and efficiently sorts out particulate thing and impurity, can achieve the effect that most preferably to sort, and saves labour, reduces labor intensity and labour cost, improves production efficiency;Dust impurities have also been stored, have reduced pollution of the dust to working environment and air.

Description

A kind of particulate thing is collected, screening installation
Technical field
The invention belongs to technical field of mechanical automation, specifically refer to a kind of particulate thing collection, screening installation.
Background technology
Traditionally, collection, the sorting of particulate thing mainly use manual operation, and manual operation labor intensity is big, working efficiency Low and high labor cost.And with the fast development of social progress and science and technology, agricultural machinery is existing using more and more extensive Have that some particulate thing collecting devices on the market or screening installation structure design are not reasonable, and use is still inconvenient, working efficiency Lowly, cost is higher, it is difficult to solve the problems, such as that dust is collected.
Invention content
The technical problems to be solved by the invention be to provide it is a kind of more convenient, more rapidly with more efficient collection, graded shot The device of object, to realize the purpose saved labour, reduce labor intensity, reduction labour cost and raising production efficiency.
In order to solve the above technical problems, the present invention is realized using following technical scheme:
A kind of particulate thing is collected, screening installation, the supporting support including slip, the outer nacelle being installed in supporting support and Interior nacelle in outer nacelle;
Above-mentioned supporting support includes the base platform positioned at bottom, the support groove body being carried on the left of base platform and is connected Two support tubes on the right side of base platform, base platform, support groove body and support tube are hollow, support groove body and support tube with Outer nacelle communicates, and on the left of base platform and support groove body bottom is respectively equipped with exhaust outlet;
Above-mentioned outer nacelle bottom is equipped with sundries discharge port;
Above-mentioned interior nacelle is fixed on by link block on outer nacelle inner wall, and hollow and top and inside cabin are equipped on the left of above-mentioned interior nacelle The suction object groove body that body communicates is inhaled object groove body and is placed in support slot body, inhales object groove body bottom and is carried on base platform and equipped with suction Object mouth;
Above-mentioned interior nacelle open top, and it is equipped with an installing plate at top, motor is vertically installed on installing plate, in installing plate Upper motor periphery is equipped with air-flow suction inlet, centrifugation blade is equipped on the output shaft above motor, on the output shaft below motor Gear one is connected with, the gear two that connection is engaged with gear one is installed in motor bottom, two number of teeth of said gear is more than gear One number of teeth, is connected with deceleration eccentric shaft on gear two, and deceleration eccentric shaft is equipped with flight;
Above-mentioned interior nacelle bottom is equipped with net object discharge port, and deceleration eccentric shaft lower part is extended in net object discharge port, discharges in net object It is connected on mouth across outer nacelle and extends to external net object material receiving tube.
Preferably, above-mentioned suction object groove body is low wide and up narrow structure.
Preferably, item between being equipped at the suction object mouth of above-mentioned suction object groove body.
Preferably, above-mentioned interior nacelle prevents the baffle splashed in particulate thing with inhaling to be equipped at object groove body connection.
Preferably, it is outer that above-mentioned suction object groove body is connected to interior nacelle equipped with a upper end, lower end passes through support groove body to extend to The defeated property management in portion, defeated property management is interior to be equipped with the movable switch that can be closed defeated property management or inhale object groove body 4.
Preferably, the button switch of motor, which is located at, is exposed on external net object material receiving tube, is equipped with and lives in net object material receiving tube Suction switch is additionally provided with the feeler lever being connect with button switch in net object material receiving tube.
Preferably, above-mentioned support tube is equipped with handrail.
Preferably, it is equipped with rotatable conducting wire at the top of above-mentioned outer nacelle and throws bar.
Preferably, above-mentioned base platform bottom front is equipped with adjustable directional wheel, above-mentioned base platform bottom rear end peace Equipped with Universal pulley.
Preferably, the pumping riser being connected in defeated property management is further included, the pumping riser lower part is equipped with inductive probe.
The beneficial effects of the invention are as follows:
1st, present device is reasonable in design, and manufacture cost is relatively low, convenient for marketing;
2nd, present device is small, light-weight, convenient for users to moving;
3rd, present device power is small, efficient, reduces labor intensity, saves working time;
4th, present device integrates collection, sorting function, also with conveying function, a tractor serves several purposes;
5th, present device can be carried out impurity sorting in collection or transmission process, and separation velocity is fast, efficient, reaches most Good separating effect, and dust pollution is not generated in operating process;
6th, present device can not only collect, sort cereal, beans object, can be also used for warehouse, harbour, square, road surface etc. Work is swept in bulk, dust cleaning, realizes multiple use.
Description of the drawings
Attached drawing 1 is main structure diagram of the present invention;
Attached drawing 2 is internal structure schematic diagram of the present invention;
Attached drawing 3 inhales object groove body left view structural representation for the present invention;
Attached drawing 4 is equipped with the main structure diagram for taking out riser and inductive probe for the present invention.
Accompanying drawings symbol description:
1 supporting support, 11 base platform, 110 exhaust outlet, 111 directional wheel, 112 Universal pulley 12 supports 13 support tube of groove body 31 net 32 net object material receiving tube 4 of object discharge port of nacelle is inhaled 41 suction object mouth 42 of object groove body and is kept off in 2 outer 21 sundries discharge ports 3 of nacelle 43 defeated 44 movable switch 45 of property management of plate, which takes out 51 motor of riser 46 inductive probe, 5 installing plate, 511 button switch 512 and lives, to be inhaled Switch 513 feeler lever, 52 centrifugation blade, 53 deceleration eccentric shaft, 54 flight, 55 gear, one 56 gear, 2 57 disk, 6 handrail 7 conducting wires throw bar.
Specific embodiment
In order to facilitate the understanding of those skilled in the art, the present invention is carried out below in conjunction with attached drawing and embodiment further Detailed description.
As shown in attached drawing 1~3, the particulate thing of this implementation announcement is collected, screening installation includes supporting support 1, is installed on branch The outer nacelle 2 and interior nacelle 3 on stent 1 are supportted, outer 2 bottom of nacelle is equipped with sundries discharge port 21.
In the present embodiment, supporting support 1 includes base platform 11, support 12 and two support tube 13 of groove body, base platform 11 Positioned at bottom, in 11 left side of base platform, two support tubes 13 are connected right in base platform 11 support 12 vertical bearing of groove body Side, base platform 11, support groove body 12 and support tube 13 are hollow, and groove body 12 and support tube 13 is supported to be communicated with outer nacelle 2, So as to which groove body 12 and support tube 13 be supported to support outer nacelle 2 jointly, in 11 left side of base platform and support groove body 12 bottom point It She You not exhaust outlet 110.
Interior nacelle 3 is set in outer nacelle 2, and interior nacelle 3 is fixed on by link block on outer 2 inner wall of nacelle, a left side for interior nacelle 3 Side is equipped with the suction object groove body 4 that hollow and top is communicated with interior nacelle 3, inhales object groove body 4 and is placed in support groove body 12, inhales object groove body 4 Bottom is carried on base platform 11 and equipped with suction object mouth 41;The open top of interior nacelle 3, and it is equipped with an installing plate at top 5, motor 51 is vertically installed on installing plate 5,51 periphery of motor is equipped with air-flow suction inlet on installing plate 5,51 top of motor Centrifugation blade 52 on output shaft is installed, gear 1 is connected on the output shaft below motor 51, is pacified in 51 bottom of motor Equipped with the gear 2 56 that connection is engaged with gear 1,2 56 number of teeth of gear is more than one 55 number of teeth of gear, connects on gear 2 56 Deceleration eccentric shaft 53 is connected to, deceleration eccentric shaft 53 is equipped with flight 54, in order to prevent particulate thing and high-speed rotating flight 54 bump against the outer nacelle 2 of directive, and disk 57 is equipped in the upper end of flight 54;Net object discharge port 31 is equipped in interior 3 bottom of nacelle, 53 lower part of deceleration eccentric shaft is extended in net object discharge port 31, is connected on net object discharge port 31 across outer nacelle 2 and extended To external net object material receiving tube 32;Flight 54 can squeeze particulate thing, and particulate thing is allowed to be discharged from net object discharge port 31, and subtract Fast eccentric shaft 53 plays the role of slowing down 54 extrusion speed of flight, and direction tilts stretching to net object material receiving tube 32 rearward, convenient for dividing Particulate thing after choosing enters bag.
Outer nacelle 2 and interior nacelle 3 in the present embodiment separate there are two composition space, and what interior nacelle 3 was surrounded is negative pressure sky Between form negative pressure cab, between outer nacelle 2 and interior nacelle 3 be exhaust cabin.After starting motor 51,52 high speed rotation of centrifugation blade is born Negative pressure is quickly formed in ballasting, air blast is mingled with particulate thing from object mouth 41 is inhaled through entering negative pressure cab into suction object groove body 4, due to negative Space is big in ballasting body, and air velocity slows down, and into the deficiency of air in negative pressure cab body to support the weight of particulate thing, makes particulate Object is dropped down onto in the net object discharge port 31 of lower end, and the impurity that proportion is lighter(Dust, leaf slightly, not plump paddy, ghost etc.)It can be inhaled by air-flow It walks;The particulate thing just fallen is made particulate thing pass through net 32 row of object material receiving tube by 54 spinning of flight on deceleration eccentric shaft 53 Enter in prepared packaging bag, so as to fast and efficiently sort out particulate thing and impurity, separating effect is apparent, can reach The effect most preferably sorted, saves labour, reduces labor intensity and labour cost, improves production efficiency.
The air-flow formed in negative pressure cab body by centrifugation blade 52 enters exhaust cabin from negative pressure cab, and the air-flow into exhaust cabin is big Part can flow to support groove body 12 and support tube 13, fraction and can be discharged from sundries discharge port 21, and impurity is collected in prepared In packaging bag, since the impurity waste material after sorting is discharged into automatically in another bag, being uniformly processed for impurity has both been facilitated, has been stored Dust impurities reduce pollution of the dust to working environment and air, reduce and sweep cleaning work, and are conducive to air-flow discharge; The air-flow of flow direction support groove body 12 is discharged from exhaust outlet 110, and the air-flow of discharge forms air blast together with thin at suction object mouth 41 again Grain object sucking is inhaled in object groove body 4, in the air-flow recirculation to base platform 11 for flowing to support tube 13, then is discharged through exhaust outlet 110, Air-flow again from formation air blast at object mouth 41 is inhaled, together in particulate thing sucking suction object groove body 4, all by cycle drawn by the air-flow of discharge It utilizes, so as to which dust just implements the hybrid separation of rotation and filter cloth, discharging the amount of air-flow must be supplemented by suction object mouth 41 and be prevented The phenomenon that leaks of dirt stream is stopped, had both realized airflow circulating utilization, and avoided dust pollution.
In the present embodiment, it is low wide and up narrow structure to inhale object groove body 4, and inhaling 4 lower end of object groove body can be real with longer cross section Wider operation line-spacing is applied, improves working efficiency, and it is the interface with interior nacelle 3 to inhale 4 upper end of object groove body, using narrowed design The conveying of particulate thing can be easily controlled, improves working effect.
In the present embodiment, item between being equipped at the suction object mouth 41 for inhaling object groove body 4, which is both the entrance of particulate thing End, while be also the arrival end that support groove body 12 and base platform 11 discharge air-flow, an item prevents strip or block to enter In interior nacelle 3, protection equipment is safe to use.
In the present embodiment, baffle 42 is equipped at 4 connection of object groove body with inhaling in interior nacelle 3, which prevents from suction object The particulate thing that groove body 4 extracts up at a high speed is directly mapped to interior 3 upper end of nacelle, that is, prevents from splashing in particulate thing, play barrier and buffering Effect.
In the present embodiment, inhale object groove body 4 on be equipped with a defeated property management 43, defeated 43 upper end of property management be connected to interior nacelle 3, under End extends to outside across support groove body 12, is equipped in the defeated property management 43 to close defeated property management 43 or inhale the activity of object groove body 4 and open Close 44.The equipment further includes the pumping riser 45 being connected in defeated property management 43, takes out 45 lower part of riser and is equipped with inductive probe 46.Work as needs The movable switch 44 can be opened when particulate thing is delivered to eminence from ground, riser 45 will be taken out and plugged into defeated property management 43, it is defeated Property management 43 is opened, and movable switch 44 will then be inhaled object groove body 4 and be closed, and air be prevented to enter from object groove body 4 is inhaled, so as to fulfill conveying Operation, as shown in Figure 4;Inductive probe 46 ensure that the optimum distance of suction inlet of the cereal with taking out riser 45.It inhales under object groove body 4 Narrow structure on width has been also convenient for opening or closing by operant activity switch 44 and has inhaled object groove body 4.
In the present embodiment, the button switch 511 of motor 51, which is located at, to be exposed on external net object material receiving tube 32, in net object splicing Suction switch 512 living is equipped in pipe 32, suction switch 512 living is made of rubber material, be additionally provided in net object material receiving tube 32 with by The feeler lever 513 that button switch 511 connects.During 51 initialization of motor, under the action of air-flow suction, suction switch 512 living is closed, and is hindered Only air enters from net object discharge port 31 in interior nacelle 3, and when particulate thing blanking, particulate thing pushes 512 blanking of suction switch living open, Until when bag is full, particulate thing can oppress suction switch 512 living, feeler lever 513 by suction switch 512 living thrust pressing by Medium-voltage Motor 51 Button switch 511, power supply is disconnected, and expires autostop so as to fulfill bag, easy to use, safe.
In the present embodiment, on two support tubes 13 be equipped with handrail 6, convenient for pushing equipment move ahead or after move.
In the present embodiment, it is equipped with rotatable conducting wire at outer 2 top of nacelle and throws bar 7, conducting wire is thrown to introduce in bar 7 from conducting wire and be set Standby inside is connect with motor 51, and the electric wire of barrier operation is cast aside by rotation, greatly facilitates collection operation, ingenious to avoid electric wire Blocking equipment moves ahead outlet.
In the present embodiment, 11 bottom front of base platform is equipped with adjustable directional wheel 111, by adjusting directional wheel 111, It can realize that up and down adjustment inhales object mouth 41 and the most Cui on ground draws distance, universal cunning is installed in 11 bottom rear end of base platform Wheel 112, operation is conveniently steered, so as to which the equipment be made front and rear can to slide.Collect operation when, this equipment can according to working line away from The energy operation of flat-pushing or irregular forward-reverse, it is time saving and energy saving, labor intensity is reduced, improves working efficiency, particulate thing is deposited in It can also collect together, the efficiency of collection is very high, and collects clean, does not stay particulate thing on ground, bad to take.
Particulate thing of the present invention is collected, screening installation is reasonable in design, small, facilitates the storage of equipment, saves storage Space, it is light-weight, easily move, it is at low cost, it is easy to operate, the sorting of net object and the discharge of sundries are realized in interior nacelle 3, It is highly suitable for cereal, the collection of beans object, sorting, integrates and take out receipts machine function and sorting machine function;It can also be applied to it Operation is swept in his cleaning operation, such as the cleaning of the bulk on square, warehouse, road surface etc., dust, realizes a tractor serves several purposes;It can also incite somebody to action Particulate crops extract from ground and are delivered to flooring threshing ground, significantly reduce the heavy physical labor of peasant's carrying.
The preferred embodiment that above-described embodiment is realized for the present invention, and non-limiting exhaustion, the present invention is gone back under same idea There can be other variations, it should be noted that any obviously to replace under the premise of inventive concept of the present invention is not departed from It changes with minor change within protection scope of the present invention.

Claims (10)

1. a kind of particulate thing is collected, screening installation, it is characterised in that:Supporting support including slip(1), be installed on support branch Outer nacelle on frame(2)And the interior nacelle in outer nacelle(3);
The supporting support includes the base platform positioned at bottom(11), the support groove body that is carried on the left of base platform(12)With Two support tubes being connected on the right side of base platform(13), base platform, support groove body and support tube are hollow, support groove body It is communicated with support tube with outer nacelle, on the left of base platform and support groove body bottom is respectively equipped with exhaust outlet(110);
The outer nacelle bottom is equipped with sundries discharge port(21);
The interior nacelle is fixed on by link block on outer nacelle inner wall, and hollow and top and inside cabin are equipped on the left of the interior nacelle The suction object groove body that body communicates(4), inhale object groove body and be placed in support slot body, inhale object groove body bottom and be carried on base platform and be equipped with Inhale object mouth(41);
The interior nacelle open top, and it is equipped with an installing plate at top(5), motor is vertically installed on installing plate(51), Motor periphery is equipped with air-flow suction inlet on a mounting board, and centrifugation blade is equipped on the output shaft above motor(52), under motor Gear one is connected on the output shaft of side(55), the gear two that connection is engaged with gear one is installed in motor bottom(56), institute Two number of teeth of gear is stated more than one number of teeth of gear, deceleration eccentric shaft is connected on gear two(53), deceleration eccentric shaft is equipped with spiral shell Blade(54);
The interior nacelle bottom is equipped with net object discharge port(31), deceleration eccentric shaft lower part is extended in net object discharge port, in net object It is connected on discharge port across outer nacelle and extends to external net object material receiving tube(32).
2. particulate thing according to claim 1 is collected, screening installation, it is characterised in that:The suction object groove body is on lower width Narrow structure.
3. particulate thing according to claim 1 is collected, screening installation, it is characterised in that:The suction object mouth for inhaling object groove body Item between place is equipped with.
4. particulate thing according to claim 1 is collected, screening installation, it is characterised in that:The interior nacelle is with inhaling object groove body Being equipped at connection prevents the baffle splashed in particulate thing(42).
5. particulate thing according to claim 1 is collected, screening installation, it is characterised in that:The suction object groove body is equipped with one Upper end is connected to interior nacelle, lower end passes through support groove body to extend to external defeated property management(43), be equipped in defeated property management can close it is defeated Property management or the movable switch for inhaling object groove body(44).
6. particulate thing according to claim 1 is collected, screening installation, it is characterised in that:The button switch of motor(511)If On external net object material receiving tube is exposed to, suction switch living is equipped in net object material receiving tube(512), it is additionally provided in net object material receiving tube The feeler lever being connect with button switch(513).
7. particulate thing according to claim 1 is collected, screening installation, it is characterised in that:The support tube is equipped with handrail (6).
8. particulate thing according to claim 1 is collected, screening installation, it is characterised in that:Being equipped at the top of the outer nacelle can The conducting wire of rotation throws bar(7).
9. particulate thing according to claim 1 is collected, screening installation, it is characterised in that:The base platform bottom front Adjustable directional wheel is installed(111), base platform bottom rear end is equipped with Universal pulley(112).
10. particulate thing according to claim 5 is collected, screening installation, it is characterised in that:It further includes and is connected in defeated property management Pumping riser(45), the pumping riser lower part is equipped with inductive probe(46).
CN201810144830.XA 2018-02-12 2018-02-12 Fine particle collecting and sorting equipment Active CN108246625B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810144830.XA CN108246625B (en) 2018-02-12 2018-02-12 Fine particle collecting and sorting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810144830.XA CN108246625B (en) 2018-02-12 2018-02-12 Fine particle collecting and sorting equipment

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Publication Number Publication Date
CN108246625A true CN108246625A (en) 2018-07-06
CN108246625B CN108246625B (en) 2024-09-06

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204170950U (en) * 2014-10-13 2015-02-25 陈龙珍 Knot screen collected by red date
CN204259429U (en) * 2014-11-27 2015-04-15 成都锦汇科技有限公司 A kind of red date picking machine being convenient to separating sundries
CN104785444A (en) * 2015-03-31 2015-07-22 德清科乐新材料科技有限公司 Coarse separation tank for mica granule
CN205526681U (en) * 2015-12-07 2016-08-31 江西省旺农农机制造有限公司 Vacuum collection spiral discharge formula grain reaping machine
CN208194949U (en) * 2018-02-12 2018-12-07 廖础勤 A kind of particulate thing collects, screening installation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204170950U (en) * 2014-10-13 2015-02-25 陈龙珍 Knot screen collected by red date
CN204259429U (en) * 2014-11-27 2015-04-15 成都锦汇科技有限公司 A kind of red date picking machine being convenient to separating sundries
CN104785444A (en) * 2015-03-31 2015-07-22 德清科乐新材料科技有限公司 Coarse separation tank for mica granule
CN205526681U (en) * 2015-12-07 2016-08-31 江西省旺农农机制造有限公司 Vacuum collection spiral discharge formula grain reaping machine
CN208194949U (en) * 2018-02-12 2018-12-07 廖础勤 A kind of particulate thing collects, screening installation

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