CN106823519A - A kind of many field of force tailing dry arranging devices of pipe and application method - Google Patents
A kind of many field of force tailing dry arranging devices of pipe and application method Download PDFInfo
- Publication number
- CN106823519A CN106823519A CN201710078496.8A CN201710078496A CN106823519A CN 106823519 A CN106823519 A CN 106823519A CN 201710078496 A CN201710078496 A CN 201710078496A CN 106823519 A CN106823519 A CN 106823519A
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- Prior art keywords
- force
- cylinder
- many field
- arranging devices
- tailing dry
- Prior art date
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Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000001914 filtration Methods 0.000 claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 23
- 239000007787 solid Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000000967 suction filtration Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
- B01D29/72—Regenerating the filter material in the filter by forces created by movement of the filter element involving vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
- B01D29/80—Handling the filter cake in the filter for purposes other than for regenerating for drying
- B01D29/82—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
- B01D29/80—Handling the filter cake in the filter for purposes other than for regenerating for drying
- B01D29/82—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression
- B01D29/828—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression using screws
Abstract
The invention discloses a kind of many field of force tailing dry arranging devices of pipe and application method.Including cylinder（1）, cylinder（1）Inside it is provided with spiral separation mechanism（3）, spiral separation mechanism（3）One end be connected with drive mechanism；Described spiral separation mechanism（3）Including suction filtering tube（4）, suction filtering tube（4）On stomata is distributed with（5）, suction filtering tube（4）Radially it is sequentially provided with filter screen（6）With filter core frame（7）, filter core frame（7）On helical blade is also distributed with（8）.The present invention has separative efficiency high, structure, process is simple, and fault rate is low, maintenance cost and equipment investment low cost, the characteristics of good effect of separating solid from liquid.
Description
Technical field
The present invention relates to a kind of equipment and application method that row's treatment is done for mine tailing ore pulp, particularly a kind of mine tailing ore pulp
Dry arranging device and application method.
Background technology
Tailing dry row realizes the separation of solid and liquid of Tailings Slurry, to obtain water content than relatively low mine tailing, what it was mainly utilized
Technology is to be classified using concentration with the property according to ore pulp and state and filter and flocculate with methods such as classifications of sedimentation, wherein concentrating
Classification belongs to Mechanical Method with filtering.With the property feature according to variety classes ore pulp, using different dry row's technique, method, machine
Tool equipment carries out tailing dry row's treatment.In ore dressing process, we will realize that tailing dry is arranged, and the problem mainly to be solved is to realize
The separation of the non-homogeneous phase suspension Tailings Slurry moisture and solid of ore pulp particle and water composition.At present, the main tailing dry for using
Row's technique is：Tailings Slurry is introduced into cyclone and is concentrated, and after underflow density reaches 60% ~ 75%, underflow part is by dehydration
Equipment is dehydrated, and the siccative water content for now obtaining can starch this portion of product below 18%, just and transport to dry stockyard；First start into
The overflow for entering the Tailings Slurry of cyclone is input into concentrator and carries out secondary concentration, and the now underflow of concentrator is entered into dehydration equipment
Row dehydration, the siccative water content for obtaining is less than 20%, and the water for finally being leached by dehydration equipment can be together with the overflow portion of concentrator
Ore dressing plant is returned to as backwater to continue with.The core of the technological process is Dewatering, i.e., mine tailing realize first coarse grain and
The classification of particulate, thick fine tailings carry out special dewater treatment with special equipment respectively again.Current tailing dry-type emission technology master
Have the following disadvantages：Equipment is intended to maximization (mainly has high-efficiency concentrator, high-frequency dewatering screen, ceramic filter, sheet frame pressure
Filter etc.), device structure, control are complicated, and fault rate is high, and maintenance cost and equipment investment cost are higher.
The content of the invention
It is an object of the present invention to provide a kind of many field of force tailing dry arranging devices of pipe and application method.The present invention has
Separative efficiency is high, structure, process is simple, and fault rate is low, maintenance cost and equipment investment low cost, the spy of good effect of separating solid from liquid
Point.
Technical scheme：A kind of many field of force tailing dry arranging devices of pipe, including cylinder, are provided with spiral point in cylinder
Disembark structure, one end of spiral separation mechanism is connected with drive mechanism；Described spiral separation mechanism includes suction filtering tube, on suction filtering tube
Stomata is distributed with, suction filtering tube is radially sequentially provided with filter screen and filter core frame, helical blade is also distributed with filter core frame.
In many field of force tailing dry arranging devices of foregoing pipe, the two ends of described suction filtering tube also connect by connecting pipe.
In many field of force tailing dry arranging devices of foregoing pipe, described cylinder is hinged with support, is also set between cylinder and support
There is telescoping mechanism.
In many field of force tailing dry arranging devices of foregoing pipe, oscillating column pump is additionally provided with described cylinder.
In many field of force tailing dry arranging devices of foregoing pipe, the two ends of the inside of described cylinder are equipped with humidity sensor
Device, humidity sensor is connected with controller, and controller is connected with telescoping mechanism.
In many field of force tailing dry arranging devices of foregoing pipe, described drive mechanism includes motor, motor warp
Driving-chain is connected with drive, and drive is connected with spiral separation mechanism；Described motor is also connected with controller.
In many field of force tailing dry arranging devices of foregoing pipe, feeding mouth is additionally provided with described cylinder, feeding mouth is provided with
Air inlet pipe.
In many field of force tailing dry arranging devices of foregoing pipe, one end of described suction filtering tube is also associated with anti-blowpipe.
The application method of many field of force tailing dry arranging devices of foregoing pipe is：When using, by one end of suction filtering tube and vacuum
Pump is connected, and starts vavuum pump, and drive mechanism drives helical blade to rotate through filter core frame, and ore pulp is entered in cylinder by feeding mouth,
And discharging opening is delivered to by helical blade, during conveying, under vavuum pump suction filtration, after the moisture in ore pulp passes through filter screen, then by gas
Hole enters suction filtering tube finally by vacuum pumped, realizes that the solid in ore pulp is separated with liquid with this.
In the application method of many field of force tailing dry arranging devices of foregoing pipe, when the moisture in ore pulp is more, stretch
Cylinder jack-up to predetermined angle is made the height of discharging opening higher than feeding mouth, to increase the suction filtration time of ore pulp by contracting mechanism.
Beneficial effect
Compared with prior art, the present invention sets spiral separation mechanism in cylinder, and ore pulp is in by helical blade course of conveying
, vavuum pump carries out suction filtration by suction filtering tube, under suction function, by the liquid in ore pulp through screen pack, then is taken out by stomata entrance
Chimney filter is simultaneously finally discharged, so as to realize separation of solid and liquid；Compared with traditional separation of solid and liquid, the equipment used by it is simpler
Change, minimize, and separative efficiency is higher, separating effect is more preferable；Moreover, the present invention is reality in helical blade transfer ore pulp
The separation of solid and liquid of ore pulp is showed, has realized being continuously separated for ore pulp, its technique is simpler.
The present invention sets oscillating column pump in cylinder, and ore pulp is constantly in vibration when being conveyed, and can reduce ore pulp in filter
Online adhesive force, reduces the probability that ore pulp blocks filter screen, while ore pulp is separated after finishing, can also carry out blowback by suction filtering tube
Cleaning, further prevents ore pulp from blocking filter screen, so as to effectively reduce the fault rate of equipment, has saved maintenance cost.
The present invention blasts gases at high pressure when filtration operation is carried out by air inlet pipe, mixes ore pulp and air, dilute
The concentration of ore pulp is released, has increased filtration flux, be easy to filtering；By the structure so that the concentration of slurry filtration can be diluted,
And then the concentration range of slurry filtration is increased, make the scope of application of device wider.In addition, the present invention is revolved by helical blade
Change the line of production raw centrifugal force field, telescoping mechanism causes that screen pipe inclines the gravitational field for producing, the Vibrational force field that vibrator is produced, vacuum
The pressure vacuum pressure that pump is produced and the high pressure field of force that high-pressure pump is produced, constitute the mixing field of force, so as to reach efficiently dry row
The purpose of ore pulp, during its dry row, is increased without concentration basin or concentrator etc., and concentration range is 10% ~ 90%, the scope of application
It is wider.
The present invention is compared with the equipment such as high-frequency dewatering screen or ceramic filter, and its structure is simpler, the input of equipment into
This is lower.
The moisture signal that the present invention feeds back according to humidity sensor, controls the conveying of the anglec of rotation and helical blade of cylinder
Speed adapts to the ore pulp of various concentrations, so as to control the ore pulp of various concentrations using different angle and rotary speed, makes to do
Row is better, and accommodation is wider, and the control is simpler, stabilization.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the connection diagram of cylinder and spiral separation mechanism.
Mark in accompanying drawing for：1- cylinders, 2- supports, 3- spiral separation mechanisms, 4- suction filtering tubes, 5- stomatas, 6- filter screens, 7-
Filter core frame, 8- helical blades, 9- connecting pipes, 10- telescoping mechanisms, 11- motors, 12- driving-chains, 13- drives, 14-
Oil-way, 15- oscillating column pumps, 16- support bars, 17- feeding mouths, 18- discharging openings, 19- bearings, 20- air inlet pipe, 21- anti-blowpipes,
22- end caps, 23- sewage draining exits, 24- contiguous blocks.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limitation according to
According to.
Embodiment 1.A kind of many field of force tailing dry arranging devices of pipe, are constituted as shown in Figure 1-2, including cylinder 1, in cylinder 1
Spiral separation mechanism 3 is provided with, one end of spiral separation mechanism 3 is connected with drive mechanism；Described spiral separation mechanism 3 includes taking out
Chimney filter 4, is distributed with stomata 5 on suction filtering tube 4, suction filtering tube 4 is radially sequentially provided with filter screen 6 and filter core frame 7, on filter core frame 7
Helical blade 8 is also distributed with.As shown in Fig. 2 connected by bearing 19 between cylinder 1 and filter core frame 7, between filter core frame 7 and filter screen 6
Connected by bearing 19.
The two ends of foregoing suction filtering tube 4 also connect by connecting pipe 9.By the structure, when vavuum pump connects suction filtering tube 4
When carrying out suction filtration, suction filtration can be carried out simultaneously from the two ends of suction filtering tube 4, its is in hgher efficiency.
Foregoing cylinder 1 is hinged with support 2, and telescoping mechanism 10 is additionally provided between cylinder 1 and support 2.Described telescoping mechanism
10 optional hydraulic jacks, cylinder or electric pushrod, preferably hydraulic jack.
Oscillating column pump 15 is additionally provided with foregoing cylinder 1.By setting oscillating column pump 15, in suction filtration, ore pulp is reduced in filter screen 6
On adhesive force, reduce ore pulp in solid matter block filter screen 6 probability, the service life of extension fixture.
The two ends of the inside of foregoing cylinder 1 are equipped with humidity sensor, and humidity sensor is connected with controller, controller
It is connected with telescoping mechanism 10.
Foregoing drive mechanism includes motor 11, and motor 11 is connected through driving-chain 12 with drive 13, is driven
Wheel 13 is connected with spiral separation mechanism 3, is specifically connected with filter core frame 7；Described motor 11 is also connected with controller.
Feeding mouth 17 is additionally provided with foregoing cylinder 1, feeding mouth 17 is provided with air inlet pipe 20.
One end of foregoing suction filtering tube 4 is also associated with anti-blowpipe 21.
The foregoing lower section of drive 13 is additionally provided with oil-way 14.By the setting, driving-chain 12 and drive can be made
Lubricated well between 13, improved device service life.
Support bar 16 is also hinged with foregoing support 2.When cylinder 1 rotates to an angle, supported using support bar 16
Firmly cylinder 1, increases the security of device.
The filter opening of foregoing filter screen 6 is Spiral distribution, the direction of filter opening Spiral distribution and the hand of spiral phase of helical blade 8
Instead.By the structure, advantageously the moisture in ore pulp is discharged through filter opening by suction filtering tube 4, improves dry row's efficiency.
Foregoing helical blade 8 is to be fixed through bolt after contiguous block 24 is connected between split-type structural, helical blade 8.
By the structure, be conducive to changing and safeguard, during replacing, only the part of damage need to be changed, so as to reduce maintenance cost.Foregoing cylinder
Body 1 is also split-type structural, by the structure, also allows for demolition and maintenance.
When many field of force tailing dry arranging devices of foregoing pipe are used, one end of suction filtering tube 4 is connected with vavuum pump, and start
Vavuum pump, drive mechanism drives helical blade 8 to rotate through filter core frame 7, and ore pulp is entered in cylinder 1 by feeding mouth 17, and by spiral
Blade 8 is delivered to discharging opening 18, during conveying, under vavuum pump suction filtration, after the moisture in ore pulp passes through filter screen 6, then is entered by stomata 5
Enter suction filtering tube 4 finally by vacuum pumped, realize that the solid in ore pulp is separated with liquid with this, its process is simple.
When the moisture in ore pulp is more, the jack-up of cylinder 1 to predetermined angle is made discharging opening 18 by telescoping mechanism 10
Highly it is higher than feeding mouth 17, to increase the suction filtration time of ore pulp, strengthens the effect of solid and liquid separation.
When pulp density is higher, high-pressure pump blasts pressure-air by air inlet pipe 20, and it is dropped to dilute pulp density
It is low, and then it is easy to the filter screen 6 to carry out suction filtration to ore pulp.
The many field of force tailing dry arranging devices of foregoing pipe when ore pulp solid, liquid body is separated using vavuum pump suction filtration, Neng Gougen
According to the moisture signal that humidity sensor feeds back, the angle and the control rotating speed of motor 11 of cylinder 1 are controlled to control by controller
The feeding speed of helical blade processed 8.
At the end of vacuum pumping is filtered, high-pressure pump is connected into anti-blowpipe 21, i.e., to the drum of suction filtering tube 4 such as pressure-air, together
When Vibration on Start-up pump 15, the ore pulp adhered on filter screen 6 is blown down and is discharged by discharging opening 18, carry out blowback cleaning.
The end cap 22 of foregoing cylinder 1 is demountable structure, during cleaning, also cylinder 1 can be turned clockwise an angle,
And end cap 22 is opened, and water cleaning is passed through from feeding mouth 17, the water after cleaning is flowed out by the one end of end cap 22；Also can be by the inverse time of cylinder 1
Pin is raised, and water is flowed out by sewage draining exit 23.Also after spiral separation mechanism 3 can be extracted out from cylinder 1 from end cap 22 change or
Cleaning, it is easy to maintenance.
Claims (10)
1. many field of force tailing dry arranging devices of a kind of pipe, it is characterised in that：Including cylinder（1）, cylinder（1）Inside it is provided with spiral separation
Mechanism（3）, spiral separation mechanism（3）One end be connected with drive mechanism；Described spiral separation mechanism（3）Including suction filtering tube
（4）, suction filtering tube（4）On stomata is distributed with（5）, suction filtering tube（4）Radially it is sequentially provided with filter screen（6）With filter core frame（7）, filter
Core frame（7）On helical blade is also distributed with（8）.
2. many field of force tailing dry arranging devices of pipe according to claim 1, it is characterised in that：Described suction filtering tube（4）'s
Two ends are also by connecting pipe（9）Connection.
3. many field of force tailing dry arranging devices of pipe according to claim 1 and 2, it is characterised in that：Described cylinder（1）With
Support（2）It is hinged, cylinder（1）With support（2）Between be additionally provided with telescoping mechanism（10）.
4. many field of force tailing dry arranging devices of pipe according to claim 1 and 2, it is characterised in that：Described cylinder（1）On
It is additionally provided with oscillating column pump（15）.
5. many field of force tailing dry arranging devices of pipe according to claim 3, it is characterised in that：Described cylinder（1）It is interior
The two ends in portion are equipped with humidity sensor, and humidity sensor is connected with controller, controller and telescoping mechanism（10）Connection.
6. many field of force tailing dry arranging devices of pipe according to claim 5, it is characterised in that：Described drive mechanism includes
Motor（11）, motor（11）Through driving-chain（12）With drive（13）Connection, drive（13）With spiral separator
Structure（3）Connection；Described motor（11）Also it is connected with controller.
7. many field of force tailing dry arranging devices of pipe according to claim 1 and 2, it is characterised in that：Described cylinder（1）On
It is additionally provided with feeding mouth（17）, feeding mouth（17）It is provided with air inlet pipe（20）.
8. many field of force tailing dry arranging devices of pipe according to claim 2, it is characterised in that：Described suction filtering tube（4）'s
One end is also associated with anti-blowpipe（21）.
9. a kind of application method of many field of force tailing dry arranging devices of pipe as described in claim any one of 1-8, its feature exists
In：When using, by suction filtering tube（4）One end be connected with vavuum pump, and start vavuum pump, drive mechanism is through filter core frame（7）Drive
Helical blade（8）Rotation, ore pulp is by feeding mouth（17）Into cylinder（1）It is interior, and by helical blade（8）It is delivered to discharging opening
（18）, during conveying, under vavuum pump suction filtration, the moisture in ore pulp passes through filter screen（6）Afterwards, then by stomata（5）Into suction filtering tube（4）
Finally by vacuum pumped, realize that the solid in ore pulp is separated with liquid with this.
10. the application method of many field of force tailing dry arranging devices of pipe according to claim 9, it is characterised in that：Work as ore pulp
In moisture it is more when, telescoping mechanism（10）By cylinder（1）Jack-up makes discharging opening to predetermined angle（18）Height be higher than
Feeding mouth（17）, to increase the suction filtration time of ore pulp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710078496.8A CN106823519A (en) | 2017-02-14 | 2017-02-14 | A kind of many field of force tailing dry arranging devices of pipe and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710078496.8A CN106823519A (en) | 2017-02-14 | 2017-02-14 | A kind of many field of force tailing dry arranging devices of pipe and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106823519A true CN106823519A (en) | 2017-06-13 |
Family
ID=59128873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710078496.8A Pending CN106823519A (en) | 2017-02-14 | 2017-02-14 | A kind of many field of force tailing dry arranging devices of pipe and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106823519A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110075592A (en) * | 2019-05-31 | 2019-08-02 | 威海沁和实业有限公司 | Spiral filtration rinsing maching |
| CN111621325A (en) * | 2020-05-29 | 2020-09-04 | 上海华阜科技发展有限公司 | Device for separating residual catalyst particles in catalytic cracking slurry oil |
| CN113926250A (en) * | 2021-12-17 | 2022-01-14 | 湖南工商大学 | Multistage dewatering device for mine tailing materials |
| CN114797215A (en) * | 2022-05-17 | 2022-07-29 | 贵州医科大学附属医院 | Sorting and filtering device and method for tumor cell clusters |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110075592A (en) * | 2019-05-31 | 2019-08-02 | 威海沁和实业有限公司 | Spiral filtration rinsing maching |
| CN111621325A (en) * | 2020-05-29 | 2020-09-04 | 上海华阜科技发展有限公司 | Device for separating residual catalyst particles in catalytic cracking slurry oil |
| CN113926250A (en) * | 2021-12-17 | 2022-01-14 | 湖南工商大学 | Multistage dewatering device for mine tailing materials |
| CN114797215A (en) * | 2022-05-17 | 2022-07-29 | 贵州医科大学附属医院 | Sorting and filtering device and method for tumor cell clusters |
| CN114797215B (en) * | 2022-05-17 | 2023-05-02 | 贵州医科大学附属医院 | Sorting and filtering device and method for tumor cell mass |
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Application publication date: 20170613 |