CN105344602A - Multi-stage microparticle vacuum screening device - Google Patents
Multi-stage microparticle vacuum screening device Download PDFInfo
- Publication number
- CN105344602A CN105344602A CN201510730688.3A CN201510730688A CN105344602A CN 105344602 A CN105344602 A CN 105344602A CN 201510730688 A CN201510730688 A CN 201510730688A CN 105344602 A CN105344602 A CN 105344602A
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- screen drum
- motor
- microparticle
- particle
- screen
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Classifications
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- 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
- B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/02—Arrangement of air or material conditioning accessories
Abstract
The invention provides a multi-stage microparticle vacuum screening device. The multi-stage microparticle vacuum screening device comprises a screen drum, a material crushing unit, a raising and stirring unit and a separation unit which are all horizontally arranged. The material crushing unit comprises a material crushing pipe, a motor A and a material crushing roller set. A discharge port of the material crushing pipe is communicated with a feed port of the screen drum. The raising and stirring unit comprises a motor B, an air blower and a material stirring rod set. The material stirring rod set is horizontally arranged and located below the feed port of the screen drum. The separation unit comprises a motor C, a centrifugal draught fan, a dust removal cover, a transverse shaft and two or more separation assemblies fixed to the transverse shaft. The center draught fan is installed at the right end in the screen drum. An air outlet of the centrifugal draught fan is covered with the dust removal cover. The transverse shaft is horizontally installed in the axial direction of the drum shaft of the screen drum. The right end of the transverse shaft is connected with the motor C. The left end of the transverse shaft is fixed to the dust removal cover. Each separation assembly is composed of a screen and a material brush. The vacuum screening device performs separation with differential pressure being power and can be used for separating microparticle substances which have the particle size smaller than 1000 meshes and cannot be easily separated through gravity, and the minimum separation particle size can reach 2000 meshes.
Description
Technical field
The present invention relates to a kind of screening plant for microparticle, belong to screening apparatus technical field.
Background technology
Artificial core is the basic medium of reservoir physical analogy, is then the prerequisite preparing artificial core to efficient, the accurate sorting of the sand mud material of different-grain diameter.In the preparation process of artificial core, in order to make every physicochemical characteristic of rock core more close to true core, meeting and the meticulous emulation of different lithology is portrayed, often can relate to particle diameter and be less than 1000 object plasmas.Such material individual particle particle diameter is little, quality is little, and gravity is very little to its effect, and what play a major role has been intermolecular force, and the conventional sorting mode based on gravity is obviously inapplicable to this grade.Be that medium is auxiliary with water to carry out sorting there is certain effect, but the efficiency of separation is low, cannot carry out multipass sort simultaneously, and later stage solid-liquid separation effect is difficult to ensure.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, and a kind of multistage microparticle vacuum screening plant is provided, this vacuum screening plant is horizontally disposed, by dynamic vacuum in centrifugal blower holdout device, with pressure reduction in device for power carries out sorting, avoid the sorting failure caused because material particles is meticulous, after avoiding material water to wet, be difficult to dry problem simultaneously.
Realizing the technical scheme that the object of the invention adopts is, a kind of multistage microparticle vacuum screening plant, comprise screen drum, the particle unit of band charging aperture and discharging opening, raise and stir unit and separation unit, described screen drum is horizontally disposed, raise and stir right side and the left side that unit and separation unit are installed on screen drum inside respectively, the discharging opening of screen drum is positioned at below separation unit, and particle cellular installation is on screen drum right side and be communicated with screen drum charging aperture, described particle unit comprises particle pipe, be installed on the motor A on particle pipe and be installed on particle pipe inside drive the particle roller group of rotating by motor A, the discharging opening of particle pipe is communicated with screen drum charging aperture, describedly raise the stirring bar group of stirring unit and comprising motor B, air blast and being driven by motor B, described stirring bar group is horizontally disposed and be positioned at the below of screen drum charging aperture, and in stirring bar group, each stirring bar end is connected and radially distributes, described separation unit comprises motor C, centrifugal blower, dust excluding hood, the transverse axis driven by motor C and more than 2 groups are fixed on sorting component on transverse axis, centrifugal blower is installed on the right-hand member of screen drum inside, dust excluding hood covers on the air outlet of centrifugal blower, described transverse axis is installed along the axial level of screen drum, its right-hand member is connected with motor C, left end is fixed on dust excluding hood, described sorting component is made up of screen cloth and material brush, the mesh size of screen cloth order reduction from right to left in each group of sorting component, the installing hole that screen cloth is offered by its center is vertically installed on transverse axis with the bearing being arranged in installing hole, the side of screen cloth contacts with screen drum inner surface, material brush be positioned at screen cloth on the side of screen drum charging aperture and with screen cloth virtual connection touch, wherein one end of material brush is connected with transverse axis, driven by transverse axis and rotate.
The below of screen drum discharging opening is provided with the feeding cabin identical with sorting component quantity, and the bulkhead in feeding cabin is provided with hatch door.
The barrel of the screen drum part at separation unit place is consisted of sealing ring and Flange joint identical with sorting component quantity and that caliber successively decreases from right to left round table-like pipe, screen drum is provided with the discharging opening identical with sorting component quantity, and each discharging opening is installed on the bottom of each round table-like pipe respectively.
Sealed by felt collar and circlip between screen cloth installing hole and transverse axis.
The air outlet of blower fan is communicated with spiral spray airduct, described spiral spray airduct in the shape of a spiral, spaced apartly on it is provided with more than 2 exhaust vents, and spiral spray airduct level is installed, and each air outlet all upward.
What the below of stirring bar group was provided with horizontal positioned stirs material base plate, the barrel virtual connection of stirring the material edge of base plate and the Yang Jiao cellular installation district of screen drum is touched, Yang Jiao cellular installation district is divided into Yang Jiao district by stirring material base plate and is positioned at the installing zone below it, stirring material base plate is the recessed annular slab in middle part, be provided with mesh size in its interstitial hole and be not less than 2500 object annular filter screens, motor B, air blast and spiral spray airduct are all arranged in installing zone, and spiral spray airduct is positioned at immediately below annular filter screen.
Described stirring bar group is made up of vertical pivot and 2 stirring bars, stirring bar tilt upward in the horizontal direction and with stir expect base plate virtual connection touch, its lower end is connected with vertical pivot by key, and vertical pivot is positioned at the spiral center of spiral spray airduct.
Described air blast is made up of blast main and the impeller be installed in blast main, and spiral spray airduct is communicated with blast main, and the wheel shaft of impeller is connected by the rotating shaft of belt with motor B.
The aperture place being positioned at screen drum charging aperture is provided with port lid, and port lid is positioned at screen drum inside, and its upper end is hinged by the barrel on bearing pin and top, aperture.
Described particle roller group is made up of the particle roller of two parallel installations, and two particle rollers are by surperficial tooth engaged transmission, and motor A drives two particle rollers to rotate by gear train.
As shown from the above technical solution, multistage microparticle vacuum screening plant provided by the invention, vacuum principle is adopted to sieve, main body horizontal direction is arranged, gravity factor is avoided to affect the sorting quality of device, its apparatus main body is made up of three unit, be respectively: 1, particle unit, comprise particle pipe, motor A and particle roller group, particle roller group is installed on particle pipe inside and is driven by motor A and rotates, the large scale material dropping into particle pipe is carried out fragmentation, the discharging opening of particle pipe is communicated with screen drum charging aperture, material after fragmentation enters in screen drum by screen drum charging aperture, 2, raise and stir unit, the stirring bar group comprising motor B, air blast and driven by motor B, stirring bar group is horizontally disposed and overall in radial line, stirring bar group rotates under the driving of motor B, material after the fragmentation falling into screen drum is stirred, simultaneously air blast is to the material blowing of stirring, and in the material after fragmentation, particle diameter is less than 1000 object microparticle materials and under the effect of wind and stirring, forms air in screen drum be suspended thing, 3, separation unit, comprise motor C, centrifugal blower, dust excluding hood, transverse axis and more than 2 groups are suspended the sorting component of thing for sieving air, centrifugal blower is installed on the right-hand member of screen drum inside, for screen drum being vacuumized and maintaining dynamic vacuum in screen drum, pressure reduction is formed in screen drum, for ensureing sorting quality and the efficiency of separation, pressure reduction is 800 ~ 2000pa preferably, air is suspended the effect of thing pressure difference to centrifugal blower one lateral movement, sorting is completed through multipass sort assembly, dust excluding hood covers on the air outlet of centrifugal blower, for absorbing dust remaining dust after the screening of multipass sort assembly, avoid polluting external environment, transverse axis is driven by motor C and inner through screen drum in the horizontal direction, sorting component is made up of screen cloth and material brush, wherein material brush is connected with transverse axis and by transverse axis driven rotary, for forming fine motion air-flow with near group screen cloth, be convenient to the carrying out of sorting, screen cloth is vertically installed on transverse axis by bearing, for sieving the microparticle of different-grain diameter.
Screen drum provided by the invention, the partial design for material sorting be barrel dliameter successively decrease from right to left round table-like, namely less the closer to centrifugal blower barrel dliameter, this structure can be suspended the flow velocity of thing between sorting component at acceleration air, improves sorting speed; The barrel of the round table-like part of screen drum is consisted of sealing ring and Flange joint the round table-like pipe identical with sorting component quantity, only needs to remove the round table-like pipe of part, be convenient to the replacing of screen cloth when changing screen cloth; For ensureing the quality of screening, the gap between screen cloth and transverse axis is by felt collar and circlip sealing, and screen cloth and screen drum barrel close contact, in point constituency effectively preventing greater particle size microparticle from entering from gap compared with small particle diameter microparticle.
What the below of stirring bar group was provided with horizontal positioned stirs material base plate, the barrel virtual connection of stirring the material edge of base plate and the Yang Jiao cellular installation district of screen drum is touched, Yang Jiao cellular installation district is divided into Yang Jiao district by stirring material base plate and is positioned at the installing zone below it, motor B, air blast and spiral spray airduct are all arranged in installing zone, avoid raising the fine particle stirred and enter damage equipment in motor B and air blast, the air outlet of blower fan is communicated with the spiral spray airduct that level is installed, spiral spray airduct in the shape of a spiral, on it, multiple opening up exhaust vent is offered at interval, moving air flows out from each exhaust vent, turbulent flow is formed in Yang Jiao district, ensure that the microparticle in broken rear material is fully kicked up under the effect of blower fan, the pivot of stirring bar group and vertical pivot are positioned at the spiral center of spiral spray airduct, make stirring bar group reach optimum to the mixing effect that material and air are suspended thing, stir material base plate and do not stir sufficient material completely for accepting simultaneously, stirring material base plate is the recessed annular slab in middle part, be provided with mesh size in its interstitial hole and be not less than 2500 object annular filter screens, filter screen tentatively can be removed order number and be not less than 2500 object microparticles, what reduce dust excluding hood removes dust quantity, avoid dust excluding hood to block, spiral spray airduct is positioned at immediately below filter screen, is convenient to air-supply, the wheel shaft of blower wheel is connected by the rotating shaft of belt with motor B, and the operation that namely motor B is blower fan provides power, reduces the power consumption of whole device.
The aperture place being positioned at screen drum charging aperture is provided with port lid, and port lid is positioned at screen drum inside, and its upper end is hinged by the barrel on bearing pin and top, aperture, and after charging completes, port lid covers aperture automatically, and in anti-locking apparatus operation, material is raised out screen drum from charging aperture.
Compared with prior art, multistage microparticle vacuum screening plant provided by the invention, its advantage is:
1, vacuum screening plant provided by the invention adopts vacuum principle to sieve, take pressure reduction as sorting power, sorting instrument of breaking the normal procedure relies on the form of gravity separation, be difficult to dry problem after the sorting failure fundamentally avoiding gravity separation to cause because material particles is meticulous and waterpower sorting material water wet, fill up the blank of prior art;
2, vacuum screening plant provided by the invention can be used for the microparticle material that particle diameter is less than 1000 orders, dependence gravity is difficult to carry out sorting, and minimum sorting granularity can reach 2000 orders;
3, vacuum screening plant structure provided by the invention is simple, device collection particle, multipass sort, is collected in one, and operating efficiency is high, and ensures clean environment.
4, in vacuum screening plant provided by the invention, separating sieve at different levels all can change separately, realizes the multiple combination mode of multilevel screen, meets the requirement of test to different grain size combination.
Accompanying drawing explanation
Fig. 1 is the structural representation of multistage microparticle vacuum screening plant provided by the invention.
Fig. 2 is the structural representation one of particle unit.
Fig. 3 is the structural representation two of particle unit.
Fig. 4 raises the local structural graph stirring unit.
Fig. 5 is the structural representation of spiral spray airduct.
Fig. 6 is the mounting structure figure of sorting component.
Wherein, 1-centrifugal blower, 2-centrifugal fan air outlet, 3-dust excluding hood, 4-transverse axis, 5-screen cloth, 6-flange, 7-material brush, the round table-like pipe of 8-, 9-motor C, 10-screen drum, 11-particle pipe, 12-port lid, 13-vent window, 14-spiral spray airduct, 15-shaft coupling, 16-motor B, 17-belt, 18-impeller, 19-blast main, 20-cabin door, 21-stirring bar group, 22-hatch door, 23-discharging opening, 24-feeding cabin, 25-motor A, 26-bearing, 27-felt collar, 28-key, 29-circlip, 30-stirring bar, 31-vertical pivot, 32-stirs material base plate, 33-baffle plate, 34-annular filter screen, 35-gear train, 36-particle roller, 37-exhaust vent.
Detailed description of the invention
Illustrate in detail the present invention below in conjunction with drawings and Examples, content of the present invention is not limited to following examples.
Multistage microparticle vacuum screening plant provided by the invention, its structure as shown in Figure 1, comprise the screen drum 10 of band charging aperture and discharging opening 23, particle unit, raise and stir unit and separation unit, described screen drum is horizontally disposed, raise and stir right side and the left side that unit and separation unit are installed on screen drum inside respectively, particle cellular installation is on screen drum right side and be communicated with screen drum charging aperture, the discharging opening 23 of screen drum is positioned at below separation unit, the feeding cabin 24 identical with discharging opening quantity is provided with below it, the bulkhead in feeding cabin is provided with hatch door 22, the aperture place being positioned at screen drum charging aperture is provided with port lid 12, port lid is positioned at screen drum inside, its upper end is hinged by the barrel on bearing pin and top, aperture,
See Fig. 2 and Fig. 3, described particle unit comprises particle pipe 11, be installed on the motor A25 on particle pipe and be installed on particle pipe inside drive the particle roller group of rotating by motor A, the discharging opening of particle pipe is communicated with screen drum charging aperture, described particle roller group is made up of the particle roller 36 of two parallel installations, two particle rollers are by surperficial tooth engaged transmission, and motor A25 drives two particle rollers to rotate by gear train 35;
See Fig. 4, raise and stir unit and comprise motor B16, air blast, spiral spray airduct 14, stirring bar group 21 and be positioned at and stir material base plate 32 below stirring bar group, stir material base plate 32, the barrel virtual connection of stirring the material edge of base plate and the Yang Jiao cellular installation district of screen drum is touched, Yang Jiao cellular installation district is divided into Yang Jiao district by stirring material base plate and is positioned at the installing zone below it, motor B, air blast and spiral spray airduct are all arranged in installing zone, the described material base plate that stirs is the recessed annular slab in middle part, be provided with mesh size in its interstitial hole and be not less than 2500 object annular filter screens 34, spiral spray airduct 14 is communicated on the air outlet of blower fan, see Fig. 5, described spiral spray airduct 14 in the shape of a spiral, spaced apartly on it be provided with more than 2 exhaust vents 37, spiral spray airduct level to be installed on immediately below annular filter screen and each air outlet all upward, stirring bar group is horizontally disposed and be positioned at the below of screen drum charging aperture, described stirring bar group is made up of vertical pivot 31 and 2 stirring bars 30, vertical pivot 31 is driven by motor B and is positioned at the spiral center of spiral spray airduct, each stirring bar 30 tilts upward in the horizontal direction and radially distributes, its upper end expect that base plate virtual connection is tactile with stirring, lower end is connected with vertical pivot 31 by key 28, described air blast is made up of blast main 19 and the impeller 18 be installed in blast main, spiral spray airduct 14 is communicated with blast main 19, the wheel shaft of impeller 18 is connected with the rotating shaft of motor B by belt 17, the barrel of bottom, Yang Jiao cellular installation district and installing zone place part offers vent window 13 for ventilating and for changing the cabin door 20 raised and stir each assembly of unit,
Described separation unit comprises motor C9, centrifugal blower 1, dust excluding hood 3, the transverse axis 4 driven by motor C and more than 2 groups are fixed on sorting component on transverse axis, centrifugal blower is installed on the right-hand member of screen drum inside, dust excluding hood covers on centrifugal fan air outlet 2, described transverse axis is installed along the axial level of screen drum, its right-hand member is connected with motor C, left end is fixed on dust excluding hood, the barrel of the screen drum part at separation unit place is connected and composed by sealing ring and flange 6 by identical with sorting component quantity and that caliber successively decreases from right to left round table-like pipe 8, screen drum is provided with the discharging opening 23 identical with sorting component quantity, each discharging opening is installed on the bottom of each round table-like pipe respectively, described sorting component is made up of screen cloth 5 and material brush 7, the mesh size of screen cloth order reduction from right to left in each group of sorting component, participate in Fig. 6, the installing hole that screen cloth is offered by its center is vertically installed on transverse axis 4 with the bearing 26 being arranged in installing hole, sealed by felt collar 27 and circlip 29 between screen cloth installing hole and transverse axis, the side of screen cloth contacts with screen drum inner surface, material brush be positioned at screen cloth on the side of screen drum charging aperture and with screen cloth virtual connection touch, wherein one end of material brush is connected with transverse axis, driven by transverse axis and rotate.
Claims (10)
1. a multistage microparticle vacuum screening plant, it is characterized in that: comprise screen drum, the particle unit of band charging aperture and discharging opening, raise and stir unit and separation unit, described screen drum is horizontally disposed, raise and stir right side and the left side that unit and separation unit are installed on screen drum inside respectively, the discharging opening of screen drum is positioned at below separation unit, and particle cellular installation is on screen drum right side and be communicated with screen drum charging aperture, described particle unit comprises particle pipe, be installed on the motor A on particle pipe and be installed on particle pipe inside drive the particle roller group of rotating by motor A, the discharging opening of particle pipe is communicated with screen drum charging aperture, describedly raise the stirring bar group of stirring unit and comprising motor B, air blast and being driven by motor B, described stirring bar group is horizontally disposed and be positioned at the below of screen drum charging aperture, and in stirring bar group, each stirring bar end is connected and radially distributes, described separation unit comprises motor C, centrifugal blower, dust excluding hood, the transverse axis driven by motor C and more than 2 groups are fixed on sorting component on transverse axis, centrifugal blower is installed on the right-hand member of screen drum inside, dust excluding hood covers on the air outlet of centrifugal blower, described transverse axis is installed along the axial level of screen drum, its right-hand member is connected with motor C, left end is fixed on dust excluding hood, described sorting component is made up of screen cloth and material brush, the mesh size of screen cloth order reduction from right to left in each group of sorting component, the installing hole that screen cloth is offered by its center is vertically installed on transverse axis with the bearing being arranged in installing hole, the side of screen cloth contacts with screen drum inner surface, material brush be positioned at screen cloth on the side of screen drum charging aperture and with screen cloth virtual connection touch, wherein one end of material brush is connected with transverse axis, driven by transverse axis and rotate.
2. multistage microparticle vacuum screening plant according to claim 1, is characterized in that: the below of screen drum discharging opening is provided with the feeding cabin identical with sorting component quantity, and the bulkhead in feeding cabin is provided with hatch door.
3. multistage microparticle vacuum screening plant according to claim 1, it is characterized in that: the barrel of the screen drum part at separation unit place is consisted of sealing ring and Flange joint identical with sorting component quantity and that caliber successively decreases from right to left round table-like pipe, screen drum is provided with the discharging opening identical with sorting component quantity, and each discharging opening is installed on the bottom of each round table-like pipe respectively.
4. multistage microparticle vacuum screening plant according to claim 1, be is characterized in that: sealed by felt collar and circlip between screen cloth installing hole and transverse axis.
5. multistage microparticle vacuum screening plant according to claim 1, it is characterized in that: the air outlet of blower fan is communicated with spiral spray airduct, described spiral spray airduct in the shape of a spiral, spaced apartly on it is provided with more than 2 exhaust vents, spiral spray airduct level is installed, and each air outlet all upward.
6. multistage microparticle vacuum screening plant according to claim 5, it is characterized in that: what the below of stirring bar group was provided with horizontal positioned stirs material base plate, the barrel virtual connection of stirring the material edge of base plate and the Yang Jiao cellular installation district of screen drum is touched, Yang Jiao cellular installation district is divided into Yang Jiao district by stirring material base plate and is positioned at the installing zone below it, stirring material base plate is the recessed annular slab in middle part, be provided with mesh size in its interstitial hole and be not less than 2500 object annular filter screens, motor B, air blast and spiral spray airduct are all arranged in installing zone, spiral spray airduct is positioned at immediately below annular filter screen.
7. multistage microparticle vacuum screening plant according to claim 6, it is characterized in that: described stirring bar group is made up of vertical pivot and 2 stirring bars, stirring bar tilt upward in the horizontal direction and with stir expect base plate virtual connection touch, its lower end is connected with vertical pivot by key, and vertical pivot is positioned at the spiral center of spiral spray airduct.
8. multistage microparticle vacuum screening plant according to claim 5, it is characterized in that: described air blast is made up of blast main and the impeller be installed in blast main, spiral spray airduct is communicated with blast main, and the wheel shaft of impeller is connected by the rotating shaft of belt with motor B.
9. multistage microparticle vacuum screening plant according to claim 1, it is characterized in that: the aperture place being positioned at screen drum charging aperture is provided with port lid, and port lid is positioned at screen drum inside, its upper end is hinged by the barrel on bearing pin and top, aperture.
10. multistage microparticle vacuum screening plant according to claim 1, it is characterized in that: described particle roller group is made up of the particle roller of two parallel installations, two particle rollers are by surperficial tooth engaged transmission, and motor A drives two particle rollers to rotate by gear train.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510730688.3A CN105344602B (en) | 2015-10-30 | 2015-10-30 | Multi-stage microparticle vacuum screening device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510730688.3A CN105344602B (en) | 2015-10-30 | 2015-10-30 | Multi-stage microparticle vacuum screening device |
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| CN105344602A true CN105344602A (en) | 2016-02-24 |
| CN105344602B CN105344602B (en) | 2017-04-19 |
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| CN201510730688.3A Active CN105344602B (en) | 2015-10-30 | 2015-10-30 | Multi-stage microparticle vacuum screening device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750203A (en) * | 2016-03-18 | 2016-07-13 | 孟建红 | Multistage air blasting and material sieving equipment |
| CN106423871A (en) * | 2016-12-06 | 2017-02-22 | 百奥森（江苏）食品安全科技有限公司 | Crop gravity selection installation |
| CN108057620A (en) * | 2017-12-12 | 2018-05-22 | 刘翠玲 | A kind of agricultural high-efficiency overturns device of winnowing |
| CN108421645A (en) * | 2018-03-26 | 2018-08-21 | 郭庆 | A kind of medicine bacterium multi-stage separation screening system |
| CN109622175A (en) * | 2018-11-28 | 2019-04-16 | 上海化工研究院有限公司 | A kind of powder classifying system |
| CN111822349A (en) * | 2020-07-08 | 2020-10-27 | 翁均祥 | Thorn removing and impurity removing device for fruits with thorns |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750203A (en) * | 2016-03-18 | 2016-07-13 | 孟建红 | Multistage air blasting and material sieving equipment |
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| CN106423871A (en) * | 2016-12-06 | 2017-02-22 | 百奥森（江苏）食品安全科技有限公司 | Crop gravity selection installation |
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| CN108057620A (en) * | 2017-12-12 | 2018-05-22 | 刘翠玲 | A kind of agricultural high-efficiency overturns device of winnowing |
| CN108421645A (en) * | 2018-03-26 | 2018-08-21 | 郭庆 | A kind of medicine bacterium multi-stage separation screening system |
| CN108421645B (en) * | 2018-03-26 | 2019-12-13 | 中南大学湘雅三医院 | Medical science bacterium multistage separation screening system |
| CN109622175A (en) * | 2018-11-28 | 2019-04-16 | 上海化工研究院有限公司 | A kind of powder classifying system |
| CN111822349A (en) * | 2020-07-08 | 2020-10-27 | 翁均祥 | Thorn removing and impurity removing device for fruits with thorns |
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|---|---|
| CN105344602B (en) | 2017-04-19 |
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