CN106018203B - A kind of Simple And Practical wet elutriator - Google Patents
A kind of Simple And Practical wet elutriator Download PDFInfo
- Publication number
- CN106018203B CN106018203B CN201610394428.8A CN201610394428A CN106018203B CN 106018203 B CN106018203 B CN 106018203B CN 201610394428 A CN201610394428 A CN 201610394428A CN 106018203 B CN106018203 B CN 106018203B
- Authority
- CN
- China
- Prior art keywords
- clasfficiator
- quick
- disc holder
- detachable cleaning
- detachable
- Prior art date
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- Expired - Fee Related
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0272—Investigating particle size or size distribution with screening; with classification by filtering
Abstract
The present invention relates to a kind of continuous hydraulic grading devices of Simple And Practical.A kind of Simple And Practical wet elutriator, it is characterised in that it includes cross-shaped base, hollow middle shaft, Dual-layer disc holder, upper conical roller bearing, inferior pyramidal roller bearing, telescopic lever, funnel stand, the clasfficiator of Quick-detachable cleaning, silicone tube, lucite tube；The clasfficiator of 4~6 Quick-detachable cleanings is arranged from small to large by diameter；The outlet of small funnel is connected by conduit with the lower section entrance of the clasfficiator of first Quick-detachable cleaning, and the outlet between the clasfficiator of adjacent Quick-detachable cleaning is connected with entrance by conduit.The wholegrain grade material that screen size is 74 μm can be divided into+74,74+38,38+19,19+10,10 μm of relatively narrow grades (or other grades form) by the Simple And Practical wet elutriator, and acquisition is for the narrow grade material of chemical examination, the classification cone bucket of the device is detachable, cleaning, is suitable for the fine graded of 74 μm of particulate wholegrain grade materials.
Description
Technical field
The present invention relates to a kind of continuous hydraulic grading devices of Simple And Practical.
Background technology
It is crushed with granularmetric composition and separating effect has in the granularity of mineral processing and material during feed separation
Important influence, it is often necessary to investigate the granularity and granularmetric composition and its variation characteristic in its material, and understand each grain of its material
The grade of grade and its variation.The measurement of usual granularity can have various methods, such as screening, elutriation, laser particle size analyzer, microscope
Granule size is observed and counts, but various methods have the applicability and feature of its granularity, such as：Screening be only used for it is millimetre-sized compared with
Coarse granule；Process for elutriation is discontinuous, used time, water consumption are big, and precision is low, poor repeatability；Laser particle size analyzer is only capable of obtaining granularity
Distribution, cannot obtain the sample for analytical test, thus cannot investigate its matter efficiency and overall efficiency；Micro- sem observation statistics
It is similar to the result of laser particle size analyzer and time-consuming and laborious.
Experimental provision at present in laboratory for hydraulic classiciation is less, usually big with discontinuous, used time, water consumption, precision
Low, the process for elutriation of poor repeatability carries out；Existing series connection eddy flow wet elutriator and cloud tin formula wet elutriator or equipment are multiple in document
Or it is miscellaneous, complicated for operation, have the shortcomings that control is unstable, inconvenient for operation, influence grading effect observation, therefore, influences to divide
Grade process, and stability is poor, seriously affects the investigation and evaluation of classification results.
The present invention has used for reference the characteristics of original series connection eddy flow wet elutriator and cloud tin formula wet elutriator, justifies using equipped with Dual-layer
Disc carrier can be equipped with 4~6 through conical roller based on 360 ° of facilities rotated freely of cross-shaped base in upper disc holder
With the comparable circular hole of clasfficiator outer diameter of Quick-detachable cleaning, circumferentially arranged distribution is on Dual-layer disc holder for circular hole, easily
The clasfficiator of disassembly, cleaning can be dismantled by rotating, and then clean its inner wall, and the overcentre of hollow middle shaft is equipped with freely up and down
Adjusting and fixable telescopic lever, convenient for adding materials and feeding liquid medium, being equipped with digital display micro constant flow pump can finely adjust
Save the flow of liquid medium.This wet elutriator is compact-sized, safe and practical, easy to operate, effectiveness of classification is high, is particulate wholegrain grade object
The narrow rank classification of material provides a kind of be applicable in and reliable novel hierarchical equipment.
Invention content
The purpose of the present invention is to provide a kind of Simple And Practical wet elutriator, which is used for the company of particulate wholegrain grade material
Continuous classification, has the characteristics that compact-sized, easy to operate, safe and reliable, clasfficiator is readily disassembled cleaning.
To achieve the goals above, the technical scheme is that：A kind of Simple And Practical wet elutriator, it is characterised in that it is wrapped
Include cross-shaped base 1, hollow middle shaft 2, Dual-layer disc holder 3, upper conical roller bearing 4, inferior pyramidal roller bearing, telescopic lever 5, funnel
Holder 6, the clasfficiator 9 of Quick-detachable cleaning, silicone tube 10, lucite tube 11；
The lower end of hollow middle shaft 2 is fixed on cross-shaped base 1；The upper end outer rim of hollow middle shaft 2 is equipped with upper conical roller bearing
4, the lower end outer rim of hollow middle shaft 2 is equipped with inferior pyramidal roller bearing, and Dual-layer disc holder 3 is by upper disc holder and lower disc branch
Frame forms, and upper disc holder is connected with upper conical roller bearing 4, and lower disc holder is connected with inferior pyramidal roller bearing；The lower end of telescopic lever 5
In the telescopic insertion hollow middle shaft in portion 2；The upper end of telescopic lever 5 is set there are two funnel stand 6, and the one of a funnel stand 6
End is fixed with feed mouth 7, and small funnel 8 is laid in one end of another funnel stand 6, and feed mouth 7 is located at the top of small funnel 8；
The outer diameter of 4~6 and the clasfficiator 9 of Quick-detachable cleaning are equipped in the upper disc holder of Dual-layer disc holder 3
The clasfficiator 9 of comparable circular hole, Quick-detachable cleaning is distributed in by the circular hole in upper disc holder on upper disc holder；It is each
The diameter of the clasfficiator 9 of (or at different levels) Quick-detachable cleaning differs, the clasfficiators 9 of 4~6 Quick-detachable cleanings by diameter from
It is small to arrive longer spread；The lower end of the clasfficiator 9 of Quick-detachable cleaning is equipped with entrance, the upper end side of the clasfficiator 9 of Quick-detachable cleaning
Equipped with outlet；The outlet of small funnel 8 is connected by conduit with the lower section entrance of the clasfficiator 9 of first Quick-detachable cleaning, adjacent
Quick-detachable cleaning clasfficiator 9 between outlet be connected by conduit with entrance, the clasfficiator 9 of the last one Quick-detachable cleaning
Outlet be connected with pipeline.
The clasfficiator 9 of the Quick-detachable cleaning is made of upper clasfficiator body, lower clasfficiator body and silica gel sealing ring 13,
The inner edge of upper clasfficiator body is equipped with internal thread 15, and the outer rim of lower clasfficiator body is equipped with external screw thread 16, upper clasfficiator body with
Lower clasfficiator body is threadedly coupled, and silica gel sealing ring 13 is between upper clasfficiator body and lower clasfficiator body.
The Simple And Practical wet elutriator further includes digital display micro constant flow pump 12, digital display micro constant flow pump 12 by silicone tube with
Mouth 7 is fed to be connected.
The circular hole circumferentially arranges.
The conduit is made of two section silicone tubes 10 and lucite tube 11, and two section silicone tubes 10 are by 11 phase of lucite tube
Connection.
The beneficial effects of the invention are as follows：
1, a kind of Simple And Practical wet elutriator (or Simple And Practical continous way wet elutriator) of the invention, using hollow middle shaft outside
Edge be equipped with two at conical roller, Dual-layer disc holder through conical roller can around cross-shaped base 360 ° rotate freely.
2, point of 4~6 and Quick-detachable cleaning are equipped in the upper disc holder of Dual-layer disc holder of the invention
The grade comparable circular hole of device outer diameter, circular hole circumferentially arrange, and the clasfficiator of Quick-detachable cleaning passes through the circular hole in upper disc holder
It is distributed on Dual-layer disc holder.
3, the clasfficiator of Quick-detachable cleaning of the invention is made of upper and lower clasfficiator body and silica gel sealing ring, upper classification
The inner edge of device body has internal thread, the outer rim of lower clasfficiator body to have external screw thread, sealed by silica gel sealing ring between both, prevents
Only medium is excessive.
4, the clasfficiator of Quick-detachable cleanings at different levels of the invention can be dismantled conveniently by rotation, then be cleaned in it
Wall, convenient for observation classification phenomenon when series classification operation and grading effect.
4, the overcentre of hollow middle shaft of the invention is equipped with freely up and down adjusting and fixable telescopic lever, stretches and draws
The upper end of bar is set there are two funnel stand, and one end of funnel stand can fix feed mouth and place small funnel, can reach wet elutriator
(grading plant) compact-sized, easy to operate effect.
5, small funnel of the invention is connected by silicone tube and lucite tube with the clasfficiator of Quick-detachable cleaning, Ge Jiyi
The liquid medium flow direction of the clasfficiator of disassembly, cleaning is is arranged by diameter from small to large, and centre is equipped with lucite tube, is convenient for
Each grade product after classification is collected, it is easy to operate, keep test result accurate and reliable.
5, digital display micro constant flow pump of the invention is connected by silicone tube with feed mouth, then feeds small funnel, convenient for continuous
The flow of observation classification phenomenon and inspection classification medium when progressive operation.
6, experiments have shown that：When pending screen size is -74 μm of wholegrain grade material ,+74, -74+ can be classified as
38, -38+19, -19+10, -10 μm of relatively narrow grades (or other grades composition), and the narrow grade material for chemical examination is obtained,
Take material convenient with collection with adding materials, it is easy to operate, safe and reliable, partition size is high, it is suitable for -74 μm of particulate wholegrains
The fine graded and separating effect of grade material is good.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 be the present invention Dual-layer disc holder in be put into the vertical views of clasfficiators at different levels, 9-1 is first order classification
Device, 9-2 are second level clasfficiator, and 9-3 is third level clasfficiator, and 9-4 is fourth stage clasfficiator.
Fig. 3 a, Fig. 3 b, Fig. 3 c, Fig. 3 d be the present invention single clasfficiators at different levels (4~6 with the classification of Quick-detachable cleaning
Device) sectional view and vertical view.
Fig. 4 a are the dismounting schematic diagrames of one of clasfficiator of Quick-detachable cleaning of the present invention.
Fig. 4 b are the assembling schematic diagrams of one of clasfficiator of Quick-detachable cleaning of the present invention.
In figure：1- cross-shaped bases, 2- hollow middle shafts, 3- Dual-layer disc holders, the upper conical roller bearings of 4-, 5- is flexible to be drawn
Bar, 6- funnel stands, 7- feed mouths, the small funnels of 8-, the clasfficiator of 9- Quick-detachable cleanings, 10- silicone tubes, 11- lucite tubes,
12- digital display micro constant flow pumps, 13- silica gel sealing rings, 14- locating rings, 15- internal threads, 16- external screw threads.
Specific implementation mode
As shown in Figure 1, Figure 2, Fig. 3 a, Fig. 3 b, Fig. 3 c, Fig. 3 d, Fig. 4 a, shown in Fig. 4 b, a kind of Simple And Practical wet elutriator, it includes
Cross-shaped base 1, hollow middle shaft 2, Dual-layer disc holder 3, upper conical roller bearing 4, inferior pyramidal roller bearing, telescopic lever 5, funnel branch
Frame 6, the clasfficiator 9 of Quick-detachable cleaning, silicone tube 10, lucite tube 11；
The lower end of hollow middle shaft 2 is fixed on cross-shaped base 1 (cross-shaped base 1 is in be fixedly connected with hollow middle shaft 2)；It is hollow
The upper end outer rim of axis 2 is equipped with upper conical roller bearing 4, and the lower end outer rim of hollow middle shaft 2 is equipped with inferior pyramidal roller bearing (in i.e. hollow
Axis 2 is equipped with conical roller at two), Dual-layer disc holder 3 is made of upper disc holder and lower disc holder, upper disk branch
Frame is connected with upper conical roller bearing 4, and lower disc holder is connected with inferior pyramidal roller bearing, and (Dual-layer disc holder 3 can through conical roller
It is rotated freely in 360 ° around cross-shaped base 1)；In the telescopic insertion hollow middle shaft 2 in lower end of telescopic lever 5 (hollow middle shaft 2
Top center is equipped with telescopic lever 5, and telescopic lever 5 can be adjusted freely up and down and can steady brace)；The upper end of telescopic lever 5
If there are two funnel stand 6, one end of a funnel stand 6 is fixed with feed mouth 7, and one end of another funnel stand 6 is placed
There are small funnel 8, feed mouth 7 to be located at the top (surface) of small funnel 8；
It is equipped with 4~6 and quick detachable clear in the upper disc holder (or upper disc holder) of Dual-layer disc holder 3
The comparable circular hole of outer diameter for the clasfficiator 9 washed, circular hole circumferentially arrange, and the clasfficiator 9 of Quick-detachable cleaning passes through upper disc holder
In circular hole be distributed on disc holder (number of the clasfficiator 9 of Quick-detachable cleaning is identical as the number of circular hole)；Each (or
Claim it is at different levels, 4~6) diameter of the clasfficiator 9 of Quick-detachable cleaning differs, the clasfficiator 9 of 4~6 Quick-detachable cleanings is by straight
Diameter arranges (i.e. the liquid medium flow direction of the clasfficiator 9 of Quick-detachable cleaning is to be arranged from small to large by diameter) from small to large；It is readily removable
The lower end for unloading the clasfficiator 9 of cleaning is equipped with entrance, and the upper end side of the clasfficiator 9 of Quick-detachable cleaning is equipped with outlet；Small funnel 8
Outlet be connected with the lower section entrance of the clasfficiator 9 of first Quick-detachable cleaning by conduit (conduit by two section silicone tubes
10 and lucite tube 11 form, two section silicone tubes 10 is connected by lucite tube 11), the classification of adjacent Quick-detachable cleaning
Outlet between device 9 is connected with entrance by conduit, and (clasfficiator 9 of i.e. all Quick-detachable cleanings is in series, continous way；It is described
Conduit is made of two section silicone tubes 10 and lucite tube 11, and two section silicone tubes 10 are connected by lucite tube 11), last
The outlet of the clasfficiator 9 of a Quick-detachable cleaning is connected (pipeline is connected with collecting vessel again, and pipeline can be above-mentioned conduit) with pipeline.
The clasfficiator 9 of the Quick-detachable cleaning is made of upper clasfficiator body, lower clasfficiator body and silica gel sealing ring 13,
The inner edge of upper clasfficiator body is equipped with internal thread 15, and the outer rim of lower clasfficiator body is equipped with external screw thread 16, upper clasfficiator body with
Lower clasfficiator body is threadedly coupled, (the upper clasfficiator between upper clasfficiator body and lower clasfficiator body of silica gel sealing ring 13
It is sealed by silica gel sealing ring 13 between body and lower clasfficiator body, prevents medium excessive；The clasfficiator 9 of Quick-detachable cleaning passes through
Its inner wall is cleaned after rotation dismounting), lower clasfficiator body is equipped with locating ring 14.
The Simple And Practical wet elutriator further includes digital display micro constant flow pump (i.e. miniature digital display constant flow pump) 12, digital display micro
Constant flow pump 12 is connected by silicone tube with feed mouth 7；Digital display micro constant flow pump 12 can fine-tune through silicone tube and feed mouth 7 to
Enter the flow of liquid medium in small funnel 8.
The digital display micro constant flow pump can be fine-tuned feeds liquid medium in small funnel through silicone tube and feed mouth
Flow；Uninterrupted is continuously adjustable for 0~500ml/min, and precision is ± 1.0ml/min.
Experiments have shown that：When pending screen size is -74 μm of wholegrain grade material, can be classified as+74, -74+38, -
38+19, -19+10, -10 μm of relatively narrow grades (or other grades composition), and the narrow grade material for chemical examination is obtained, have
It adds materials and takes material convenient with collection, it is easy to operate, safe and reliable, partition size is high, it is suitable for -74 μm of particulate wholegrain grade objects
The fine graded and separating effect of material is good.
The course of work：
1, set-up procedure：According to the granule size of material to be fractionated, standard screen wet screening is first used ,+74 μm of coarse grain are screened out
Grade material, obtains -74 μm of fine-graded wholegrain grade materials, and each actual elutriation sample size is 60~100g；Measure determinand
The density δ of material determines confluent when classification.
2, Simple And Practical wet elutriator is connected as illustrated, and adjusts the height of telescopic lever, to enable media to
Smoothly, enter clasfficiators at different levels glibly.
3, the water inlet end of digital display micro constant flow pump is opened, and adjusts the control handle of digital display micro constant flow pump to above-mentioned confluent
Size of data (data can be rough herein), medium (water) is i.e. by silicone tube through being fed mouth, into small funnel, then through silica gel
Pipe, lucite tube etc. enter clasfficiators at different levels, and clasfficiators at different levels is made to fill medium, afterbody (point of i.e. most thin level-one
Grade material) outlet collected by collecting vessel.
4, the confluent for reducing digital display micro constant flow pump, by the aforementioned fine particle stage material slurry to be measured being ready for, on one side
Stirring is added slowly and carefully in small funnel on one side, pays attention to the flow and digital display micro constant flow pump at this time of its ore pulp containing fine fraction
Confluent resultant must be less than determine classification when confluent.
5, after by fine particle stage material slurry to be measured all after wet elutriator is added in small funnel, adjustment digital display micro constant flow pump
Confluent enters the continuous analysis phase at this time to the confluent determined when being classified.
6, general continuous analysis time is 6~8 hours, is needed that continuous analysis time can be appropriately extended according to classification.
7, after analytic process, digital display micro constant flow pump is closed, stops water supply.
8, by disconnecting silicone tube and lucite tube between wet elutriators at different levels, successively by the material in wet elutriators at different levels
It releases, container collection appropriate is used in combination, after precipitation, dehydration, drying, you can each grade material after classification.
Operation principle：
1, Simple And Practical wet elutriator (or continuous wet elutriator) is according to granule materials free settling in medium (water)
Rule in the classification pipe of different-diameter, generates different rising water speeds using identical upward-current, make granule materials by
Its different sinking speed, is divided into several ranks, and the product of each rank is all by the equal particle swarm group of sinking speed
At sinking speed is often pressed quartzy density and calculated.
2, the density δ of material to be measured is measured, quartzy density presses 2.65g/cm3It calculates, if Media density is ρ, usually uses water
For medium when, take ρ=1.00g/cm3.At this point, according to Q=(δ -2.65) * 100ml/min, confluent when classification is determined.
When 3, adding material to be fractionated, the flow of the ore pulp containing fine fraction and the confluent of digital display micro constant flow pump at this time
Resultant must be less than confluent when determining classification, to prevent determinand material to be mixed into graded product relatively fine one because flow is excessive
In the clasfficiator of grade.
4, wet elutriators at different levels, which are designed as the clasfficiator of Quick-detachable cleaning, to be dismantled conveniently by rotation, then clean it
Inner wall is conducive to the cleaning for keeping clasfficiator inner walls at different levels, convenient for effectively observation classification phenomenon and supervision classification process.
5, the clasfficiators at different levels of Quick-detachable cleaning are made of upper clasfficiator body, lower clasfficiator body and silica gel sealing ring,
There is an internal thread in the inner edge of upper clasfficiator body, and the outer rim of lower clasfficiator body has an external screw thread, by silica gel sealing ring between both
Sealing, not only can effectively seal, prevent medium excessive, but also conveniently dismount, clean and clean.
6, by disconnecting silicone tube and lucite tube between wet elutriators at different levels, successively by the material in wet elutriators at different levels
It releases, container collection appropriate is used in combination, be conducive to the collection of material after classification.
Claims (5)
1. a kind of Simple And Practical wet elutriator, it is characterised in that it includes cross-shaped base（1）, hollow middle shaft（2）, Dual-layer disk
Holder（3）, upper conical roller bearing（4）, inferior pyramidal roller bearing, telescopic lever（5）, funnel stand（6）, Quick-detachable cleaning clasfficiator
（9）, silicone tube（10）, lucite tube（11）；
Hollow middle shaft（2）Lower end be fixed on cross-shaped base（1）On；Hollow middle shaft（2）Upper end outer rim be equipped with upper conical rolling
Axis（4）, hollow middle shaft（2）Lower end outer rim be equipped with inferior pyramidal roller bearing, Dual-layer disc holder（3）By upper disc holder and
Lower disc holder forms, upper disc holder and upper conical roller bearing（4）It is connected, lower disc holder is connected with inferior pyramidal roller bearing；It is flexible
Pull rod（5）The telescopic insertion hollow middle shaft in lower end（2）In；Telescopic lever（5）Upper end set there are two funnel stand
（6）, a funnel stand（6）One end be fixed with feed mouth（7）, another funnel stand（6）One end lay small funnel
（8）, it is fed mouth（7）Positioned at small funnel（8）Top；
Dual-layer disc holder（3）Upper disc holder in be equipped with the clasfficiator of 4~6 and Quick-detachable cleaning（9）Outer diameter
Comparable circular hole, the clasfficiator of Quick-detachable cleaning（9）It is distributed on upper disc holder by the circular hole in upper disc holder；It is each
The clasfficiator of Quick-detachable cleaning（9）Diameter differ, the clasfficiator of 4~6 Quick-detachable cleanings（9）From small to large by diameter
Arrangement；The clasfficiator of Quick-detachable cleaning（9）Lower end be equipped with entrance, the clasfficiator of Quick-detachable cleaning（9）Upper end side set
There is outlet；Small funnel（8）Outlet by conduit and first Quick-detachable cleaning clasfficiator（9）Lower section entrance be connected, phase
The clasfficiator of adjacent Quick-detachable cleaning（9）Between outlet be connected by conduit with entrance, the last one Quick-detachable cleaning point
Grade device（9）Outlet be connected with pipeline.
2. a kind of Simple And Practical wet elutriator according to claim 1, it is characterised in that：The clasfficiator of the Quick-detachable cleaning
（9）By upper clasfficiator body, lower clasfficiator body and silica gel sealing ring（13）The inner edge of composition, upper clasfficiator body is equipped with interior spiral shell
Line（15）, the outer rim of lower clasfficiator body is equipped with external screw thread（16）, upper clasfficiator body is threadedly coupled with lower clasfficiator body, silicon
Glue sealing ring（13）Between upper clasfficiator body and lower clasfficiator body.
3. a kind of Simple And Practical wet elutriator according to claim 1, it is characterised in that：The Simple And Practical wet elutriator also wraps
Include digital display micro constant flow pump（12）, digital display micro constant flow pump（12）Pass through silicone tube and feed mouth（7）It is connected.
4. a kind of Simple And Practical wet elutriator according to claim 1, it is characterised in that：The circular hole circumferentially arranges.
5. a kind of Simple And Practical wet elutriator according to claim 1, it is characterised in that：The conduit is by two section silicone tubes
（10）And lucite tube（11）Composition, two section silicone tubes（10）By lucite tube（11）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610394428.8A CN106018203B (en) | 2016-06-06 | 2016-06-06 | A kind of Simple And Practical wet elutriator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610394428.8A CN106018203B (en) | 2016-06-06 | 2016-06-06 | A kind of Simple And Practical wet elutriator |
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| CN106018203A CN106018203A (en) | 2016-10-12 |
| CN106018203B true CN106018203B (en) | 2018-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610394428.8A Expired - Fee Related CN106018203B (en) | 2016-06-06 | 2016-06-06 | A kind of Simple And Practical wet elutriator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106680160B (en) * | 2017-02-28 | 2023-10-20 | 广西大学 | Continuous hydraulic analyzer adopting updraft method and analysis method thereof |
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| JPS5676033A (en) * | 1979-11-27 | 1981-06-23 | Tokuyama Sekisui Kogyo Kk | Wet type sieve analytical method of particle and device thereof |
| CN204129033U (en) * | 2014-03-24 | 2015-01-28 | 云南磷化集团有限公司 | The continuous elutriation instrument improved |
| CN104492520A (en) * | 2014-12-19 | 2015-04-08 | 苏州卫生职业技术学院 | Rotatable disc type lifting test tube rack |
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| CN205786212U (en) * | 2016-06-06 | 2016-12-07 | 武汉理工大学 | A kind of Simple And Practical wet elutriator |
-
2016
- 2016-06-06 CN CN201610394428.8A patent/CN106018203B/en not_active Expired - Fee Related
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| JPS5676033A (en) * | 1979-11-27 | 1981-06-23 | Tokuyama Sekisui Kogyo Kk | Wet type sieve analytical method of particle and device thereof |
| CN204129033U (en) * | 2014-03-24 | 2015-01-28 | 云南磷化集团有限公司 | The continuous elutriation instrument improved |
| CN204261703U (en) * | 2014-11-21 | 2015-04-15 | 景泰县第四中学 | The tower test-tube stent of disk rotational |
| CN104492520A (en) * | 2014-12-19 | 2015-04-08 | 苏州卫生职业技术学院 | Rotatable disc type lifting test tube rack |
| CN204544249U (en) * | 2015-04-27 | 2015-08-12 | 宁波大学 | A kind of chemical test test tube dropper rack |
| CN204973987U (en) * | 2015-09-18 | 2016-01-20 | 李月琴 | Multi -functional rotatory over -and -under type test -tube rack |
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| Publication number | Publication date |
|---|---|
| CN106018203A (en) | 2016-10-12 |
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