CN107098355A - A kind of quick stripping means of expanded vermiculite - Google Patents
A kind of quick stripping means of expanded vermiculite Download PDFInfo
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- CN107098355A CN107098355A CN201710318871.1A CN201710318871A CN107098355A CN 107098355 A CN107098355 A CN 107098355A CN 201710318871 A CN201710318871 A CN 201710318871A CN 107098355 A CN107098355 A CN 107098355A
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- vermiculite
- cylinder
- expanded vermiculite
- agitating paddle
- blade
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
- C01B33/42—Micas ; Interstratified clay-mica products
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
Abstract
The present invention discloses a kind of quick stripping means of expanded vermiculite, and this method includes：A, the acquisition quick stripper of expanded vermiculite；B, expanded vermiculite and liquid sent into the cylinder, and opening stirring motor and electric rotating machine makes agitating paddle and cylinder rotate in opposite direction, is peeled off；C, peel off after certain time, stop each motor, stirring motor, agitating paddle and blade are removed；D, startup base centrifugal pump, are centrifuged；E, according to centrifugal rotational speed and unloading position, obtain different size of vermiculite in flake；F, change the blade on agitating paddle into scraper, scrape the solid material on barrel wall；G, add new expanded vermiculite as needed, repeat above procedure and peeled off.The stripping means of the present invention can realize that vermiculite is quickly peeled off, and not produce bulky grain solid, and classification is peeled off, realizes the fully stripped of vermiculite, possess technique simple, it is easy to promote, with obvious economic value.
Description
Technical field
Peeled off the present invention relates to layered solid material, prepare technical field of nano material, and in particular to one kind expansion leech
The quick stripping means of stone.
Background technology
Vermiculite is that China has one of preferable resource perspective and the nonmetallic minerals of potential advantages, is a kind of important nonmetallic
Mineral, are also a kind of secondary metamorphic mineral of water aluminosilicate containing magnesium of layer structure, belong to phyllosilicate, cheap and easy to get.Leech
Stone energy high temperature resistant, is the non-conductor of heat, with good electrical insulating property；Expanded vermiculite is easy to water imbibition and hygroscopicity；High temperature
Lower expansion, it is easy to peel off.Vermiculite have preferable interlayer cation exchange capacity, swelliong power, adsorption capacity, sound-proofing, every
The features such as hot, fire resistance, freexing tolerance, and chemical property is stable, it is water insoluble, it is nontoxic, tasteless, have no side effect, industrially
Mainly use its good absorption property and ion-exchange performance to handle the waste water containing heavy metal and organic cation, preparation to resist
Bacterium material and insulation material, vermiculite filter aid, cleanser and Organized Vermiculite etc..
Publication No. CN1302778A Chinese patent literature discloses a kind of process for expanding vermiculite.The patent is by vermiculite
Add chemical reagent (such as vegetable oil, KNO3Deng) pre-processed, then carry out being heated to 300 DEG C~400 DEG C, vermiculite can be reached
Maximum swelling multiple.Expansion temperature has been saved the energy, reduced well below common 850 DEG C~950 DEG C of optimum expansion temperature
Cost, add benefit.
Publication No. CN102167530A Chinese patent literature disclose a kind of expanding vermiculite with it is organically-modified integrated
Preparation technology, including step is as follows：1) vermiculite granule material is taken to go out through acting on 15~300s in 150~1000 DEG C of expansion gear
Material；2) to step 1) expanded vermiculite implement to cool processing；3) through step 2) cool after expanded vermiculite material again
Send into continuous mixer, meanwhile, expanded vermiculite material sprinkling organic modifiers thereto, and continuously stir well mixed；
4) after well mixed expanded vermiculite material is classified through whirlwind clarifier, its organic modifiers is made in the table of expanded vermiculite material
Face further disperses and is evenly coated, and obtains the organically-modified expanded vermiculite product of 2~4 grades.It is by expanding vermiculite and dredges
Water is modified two process sections and is combined as a whole, and makes full use of the waste heat after expanding vermiculite, expanded vermiculite surface is modified, rear
Reforwarding is defeated, nonhygroscopic in storing process, has energy conservation and consumption reduction effects, is beneficial to promotion and implementation.
Vermiculite is a kind of stratified material, and the key of commercial Application is first expanded before, obtains stratified material.Work
In industry, general vermiculite can expand at high temperature, be expanded.Such a expanded vermiculite has a clear superiority in wastewater treatment,
Wide hair application is obtained in water process.But, obtain expanded vermiculite particle greatly, specific surface area is small, and reaction speed is low, regeneration rate
It is low, commercial Application critical constraints.Therefore, prepare after expanded vermiculite, acquisition nanometer vermiculite piece how is peeled off again and is only expansion leech
The key issue of stone application.Therefore, the research for carrying out expanded vermiculite nanometer vermiculite piece has important practical significance.
The content of the invention
It is an object of the invention to provide a kind of quick stripping means of expanded vermiculite, it can realize that vermiculite is quickly peeled off, no
A large amount of unstripped expanded vermiculites are produced, stripping and separation coupling is realized, possesses technique simple, it is easy to promote, with obvious
Economic value.
To achieve the above object, the present invention provides a kind of quick stripping means of expanded vermiculite, and this method includes：A, acquisition are swollen
The swollen quick stripper of vermiculite；Wherein, the quick stripper of the expanded vermiculite includes cylinder, stirring motor, agitating paddle, electric rotating
Machine, base and the scraper that can be fixed on the agitating paddle, the cylinder open top sealed bottom, the stirring motor is with stirring
Mix oar drive connection and the agitating paddle is stretched into the cylinder from top to bottom, in the electric rotating machine receiving and the base simultaneously
It is fixedly connected with base, the cylinder is located above the base and the electric rotating machine is driven the cylinder so that the cylinder
Rotated along its axis, the agitating paddle is from top to bottom provided with the cylinder lateral wall near multistage blade, every grade of blade and offered
Delivery port, the delivery port is communicated with water pump；B, expanded vermiculite and liquid sent into the cylinder, and open stirring motor and
Electric rotating machine makes agitating paddle and cylinder rotate in opposite direction, is peeled off expanded vermiculite；C, stripping complete a timing
Between after, stop each motor, will be raised after stirring motor, agitating paddle and blade by escalator, removed；Open electric rotating
Machine, is centrifuged, by controlling rotating speed, realizes the separation of different-grain diameter, and bulky grain is thrown on wall, and little particle is in liquid
In；D, from top to bottom successively open water pump the vermiculite peeled off in cylinder is sent from liquid, obtain different-grain diameter vermiculite in flake, then
Micron or nanometer vermiculite piece are obtained by ultracentrifugation or filtering；E, the blade on agitating paddle is changed into scraper, using automatic
Lift sends into cylinder, and liquid is added from bottom to top, using scraper scrape expanded vermiculite in cylinder lateral wall attachment and
Liquid rinse scraper is added in cylinder, scraper is replaced by agitating paddle, new mass expanded vermiculite is supplemented, and repeat step b and c is straight
Peeled off to the expanded vermiculite.
Optionally, the blade and delivery port are three.
Optionally, one end of the scraper is formed as the arc vertically extended, and the other end is formed with for fixing
Retainer ring in rotating shaft.
Optionally, the water pump is connected by pipeline with the delivery port, and stop valve is provided with the pipeline.
Optionally, the ratio of expanded vermiculite and liquid described in step b is 0.01-100 g/l.
Optionally, the rotating speed of the stirring motor is 2000-18000 revs/min, and the rotating speed of the electric rotating machine is
1000-10000 revs/min.
Optionally, the time peeled off in step b is 10-180 minutes.
Optionally, added in water and help remover to improve charge stripping efficiency, it is described to help remover to be sodium chloride, lithium chloride, chlorine
Change potassium, calcium chloride, magnesium chloride, aluminium chloride or iron chloride.
Optionally, modifying agent can be added in water, realizes and peels off and modified coupling, the modifying agent is cetyl
Ammonium bromide, PAMC, TTAB or DTAB.
Optionally, the blade includes the sub- blade of upper, middle and lower three-level.
The inventive method has the following advantages that：
Compared with prior art, with obvious novelty：1) present invention realizes the coupling peeled off and separated；2) it is modified with
The coupling of stripping；3) different size of vermiculite in flake can be provided as needed, and minimum can arrive nano-scale；4) reverse stripping,
Charge stripping efficiency is improved；5) problem for being difficult to be crushed with general milling of vermiculite flaky material is overcome, stratified material is realized
Peel off.On the one hand the inventive method can provide the vermiculite nano piece with fabulous adsorption effect, and on the other hand the present invention is used
Vermiculite stripper there is structure to simplify, peel off quick, energy loss is low, it is easy to separate, equipment is simple, production efficiency is improved,
It is few without wastage of material, pollutant, with obvious economic value, the quick stripping of expanded vermiculite is realized, nanometer vermiculite piece is prepared,
Commercial Application for next step vermiculite lays the foundation.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of stripper of the present invention.
Fig. 2 is the photo of primary mineral of vermiculite.
Fig. 3 is the photo of expanded vermiculite.
Fig. 4 is the colloidal solution after expanded vermiculite is peeled off.
Fig. 5 is the scanning electron microscope (SEM) photograph of expanded vermiculite.
Fig. 6 is the high resolution electron microscopy figure of the vermiculite after peeling off.
Fig. 7 is to peel off the adsorption effect figure of the vermiculite to methylene blue using what is obtained under stripper different rotating speeds of the invention
(being 2000 revs/min, 3000 revs/min, 4000 revs/min, 5000 revs/min, 6000 revs/min respectively from the bottom to top).
Fig. 8 is that (abscissa is absorbance to the adsorption effect figure of the primary mineral of vermiculite to methylene blue：%, ordinate is the time：
min)。
Fig. 9 is that (abscissa is absorbance to the adsorption effect figure of the 40 mesh stripping vermiculite granule to methylene blue：%, ordinate
For the time：min).
Figure 10 is that (abscissa is absorbance to the adsorption effect figure of the 80 mesh stripping vermiculite granule to methylene blue：%, ordinate
For the time：min).
Figure 11 is that (abscissa is absorbance to the adsorption effect figure of the 120 mesh stripping vermiculite granule to methylene blue：%, indulges and sits
It is designated as the time：min).
Figure 12 is that (abscissa is absorbance to the adsorption effect figure of the 160 mesh stripping vermiculite granule to methylene blue：%, indulges and sits
It is designated as the time：min).
Figure 13 is that (abscissa is absorbance to the adsorption effect figure of the 200 mesh stripping vermiculite granule to methylene blue：%, indulges and sits
It is designated as the time：min).
Figure 14 is the vermiculite in flake methylene blue adsorption number effect contrast figure of 200 mesh (left side is before adsorbing, after absorption is in right side).
Figure 15 is a kind of structural representation of embodiment of blade of the present invention.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
As shown in figure 1, the present invention provides a kind of quick stripping means of expanded vermiculite, this method includes：A, acquisition expansion leech
The quick stripper of stone；Wherein, the quick stripper of the expanded vermiculite includes cylinder 1, stirring motor 2, agitating paddle 3, electric rotating machine
4th, base 5 and the scraper 9 that can be fixed on the agitating paddle 3, the open top sealed bottom of cylinder 1, the stirring motor 2
Be connected with agitating paddle 3 and the agitating paddle 3 stretched into the cylinder 1 from top to bottom, the electric rotating machine 4 accommodate with it is described
It is fixedly connected in base 5 and with base 5, the cylinder 1 is located at the top of base 5 and the electric rotating machine 4 is driven the cylinder
Body 1 is so that the cylinder 1 is rotated along its axis, and the agitating paddle 3 is from top to bottom provided near multistage blade 6, every grade of blade 6
The side wall of cylinder 1 on offer delivery port 7, the delivery port 7 is communicated with water pump 8；B, expanded vermiculite and liquid sent into it is described
In cylinder 1, and opening stirring motor 2 and electric rotating machine 4 makes agitating paddle 3 and cylinder 1 rotate in opposite direction, makes expansion leech
Stone is peeled off；C, peel off and complete after certain time, stop each motor, by after stirring motor 2, agitating paddle 3 and blade 6 by from
Dynamic lift rise, is removed；Electric rotating machine 4 is opened, is centrifuged, by controlling rotating speed, realizes the separation of different-grain diameter,
Bulky grain is thrown on wall, and little particle is in a liquid；D, open successively from top to bottom water pump 8 make the vermiculite peeled off in cylinder 1 with
Liquid is sent from, and obtains the vermiculite in flake of different-grain diameter, then obtain micron or nanometer vermiculite piece by ultracentrifugation or filtering；E, general
Blade 6 on agitating paddle 3 changes scraper 9 into, sends into cylinder 1 using escalator, liquid is added from bottom to top, using scraper 9
Scrape the expanded vermiculite in the side wall attachment of cylinder 1 and liquid rinse scraper 9 is added in cylinder 1, scraper 9 is replaced by and stirred
Oar 3 is mixed, new mass expanded vermiculite is supplemented, and repeat step b and c is until the expanded vermiculite is peeled off.
The method of the present invention can be directly separated out the vermiculite granule of suitable particle diameter, so as to suitably carry out adsorption treatment, energy
Enough realize that big batch metaplasia is produced.
According to the present invention, because blade and cylinder are relatively rotated and shelled so as to stir liquid and expanded vermiculite in cylinder
From, due to blade velocity of rotation faster, the larger vermiculite of particle can be got rid of to cylinder madial wall, and the less vermiculite of particle
It can back and forth dissociate between inner barrel and blade, constantly be stripped, until opening delivery port releases liquid, such as described blade
6 and delivery port 7 be three.
According to the present invention, when vermiculite is got rid of to cylinder madial wall, it can be adhered to, thus it is a part of with leech whenever releasing
The liquid of stone particle with scraper 9, it is necessary to be carried out scraping the vermiculite on lower shell madial wall, scraper can have a variety of, the present invention
To use, a kind of preferable embodiment：One end of the scraper 9 is formed as the arc vertically extended, other end shape
Into the retainer ring having for being fixed in rotating shaft.Scraper 9 by the Fixing shrink ring of its one end in a rotating shaft, rotating shaft and motor
Drive connection, the particle that inwall adhesion is struck off in progress that rotates that then other end passes through rotating shaft.In order that scraper is more contacted
Inwall, the radial direction of retainer ring and the bearing of trend of arc are perpendicular.
According to the present invention, as shown in figure 1, the discharge of liquid for convenience, the water pump 8 can by pipeline 10 with it is described
Delivery port 7 is connected, and stop valve 11 can be provided with the pipeline 10.
According to the present invention, liquid can be water, ethanol etc., carry out scattered vermiculite granule as carrier and take away stripped
Vermiculite, for example, the ratio of expanded vermiculite and liquid described in step b be 0.01-100 g/l.
According to the present invention, stirring motor is relatively rotated with electric rotating machine, controls the rotating speed of the two to contribute to control to peel off leech
The particle diameter of stone, such as the rotating speed of described stirring motor 2 is 2000-18000 revs/min, and the rotating speed of the electric rotating machine 4 is
1000-10000 revs/min.
According to the present invention, carry out after a period of time stripping, liquid will tend to clarification, and cylinder madial wall will adhere to
Vermiculite granule, now just can be with release liquid body, for example, the time peeled off in step b is 10-180 minutes.
Remover is helped to improve charge stripping efficiency according to the present invention it is possible to be added in water, it is described to help remover to be sodium chloride, chlorine
Change lithium, potassium chloride, calcium chloride, magnesium chloride, aluminium chloride or iron chloride.
According to the present invention it is possible to which modifying agent can be added in water, realize and peel off and modified coupling, the modifying agent is
Cetyl ammonium bromide, PAMC, TTAB or DTAB.
According to the present invention, as shown in figure 15, in order to improve the efficiency of stripping, the blade includes the sub- knife of upper, middle and lower three-level
Piece, so as to form six leaf blades, those skilled in the art can also be arranged as required to the blades such as four leaves, eight leaves.
The present invention will be further illustrated by embodiment below, but the present invention is not therefore subject to any restriction.
The primary mineral of vermiculite that the embodiment of the present invention is used is shown in Fig. 2；Expanded vermiculite is shown in Fig. 3, and scanning electron microscope (SEM) photograph is shown in Fig. 5.Using not
Stripping vermiculite obtained by same rotating speed is measured the adsorption effect to methylene blue, it can be seen that by being classified the leech separated
Stone, particle effect is smaller, and adsorption effect is better.Using the stripping means of the present invention, the stripping vermiculite of different-grain diameter is obtained, is carried out
The absorbance test of methylene blue, concrete outcome is shown in Fig. 8-14.As can be seen that the smaller adsorption effect of particle diameter is got on from Fig. 8-14
It is good.
Although above with general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. a kind of quick stripping means of expanded vermiculite, it is characterised in that this method includes：
A, the acquisition quick stripper of expanded vermiculite；Wherein, the quick stripper of the expanded vermiculite includes cylinder (1), stirring motor
(2), agitating paddle (3), electric rotating machine (4), base (5) and the scraper (9) that can be fixed on the agitating paddle (3), the cylinder
(1) open top sealed bottom, the stirring motor (2) and agitating paddle (3) be connected and the agitating paddle (3) from top to bottom
Stretch into the cylinder (1), the electric rotating machine (4) accommodates and is fixedly connected with the base (5) and with base (5), described
Cylinder (1) be located at the base (5) above and the electric rotating machine (4) be driven the cylinder (1) so that the cylinder (1) along its
Axis is rotated, and the agitating paddle (3) is from top to bottom provided with multistage blade (6), cylinder (1) side wall of every grade of blade (6) nearby
On offer delivery port (7), the delivery port (7) is communicated with water pump (8)；
B, sending into the cylinder (1) expanded vermiculite and liquid, and open stirring motor (2) and electric rotating machine (4) makes stirring
Oar (3) and cylinder (1) rotate in opposite direction, are peeled off expanded vermiculite；
C, peel off and complete after certain time, stop each motor, by after stirring motor (2), agitating paddle (3) and blade (6) by oneself
Dynamic lift rise, is removed；Electric rotating machine (4) is opened, is centrifuged, by controlling rotating speed, point of different-grain diameter is realized
From bulky grain is thrown on wall, and little particle is in a liquid；
D, open water pump (8) successively from top to bottom and the vermiculite peeled off in cylinder (1) is sent from liquid, obtain the leech of different-grain diameter
Flag, then micron or nanometer vermiculite piece are obtained by ultracentrifugation or filtering；
E, change the blade (6) on agitating paddle (3) into scraper (9), cylinder (1) sent into using escalator, from bottom to top plus
Enter liquid, the expanded vermiculite in the wall attachment of the cylinder (1) side is scraped using scraper (9) and addition liquid is clear in cylinder (1)
Scraper (9) is washed, scraper (9) is replaced by agitating paddle (3), new mass expanded vermiculite is supplemented, and repeat step b and c is until described
Expanded vermiculite is peeled off.
2. according to the method described in claim 1, it is characterised in that the blade (6) and delivery port (7) are three.
3. according to the method described in claim 1, it is characterised in that one end of the scraper (9) is formed as vertically prolonging
The arc stretched, the other end is formed with the retainer ring for being fixed in rotating shaft.
4. according to the method described in claim 1, it is characterised in that the water pump (8) passes through pipeline (10) and the delivery port
(7) connect, stop valve (11) is provided with the pipeline (10).
5. according to the method described in claim 1, it is characterised in that the ratio of expanded vermiculite and liquid is described in step b
0.01-100 g/l.
6. according to the method described in claim 1, it is characterised in that the rotating speed of the stirring motor (2) be 2000-18000 turn/
Minute, the rotating speed of the electric rotating machine (4) is 1000-10000 revs/min.
7. according to the method described in claim 1, it is characterised in that the time peeled off in step b is 10-180 minutes.
8. it is according to the method described in claim 1, it is characterised in that added in water and help remover to improve charge stripping efficiency, described
It is sodium chloride, lithium chloride, potassium chloride, calcium chloride, magnesium chloride, aluminium chloride or iron chloride to help remover.
Peeled off and modified 9. according to the method described in claim 1, it is characterised in that modifying agent can be added in water, realizing
Coupling, the modifying agent is cetyl ammonium bromide, PAMC, TTAB or 12
Alkyl trimethyl ammonium bromide.
10. according to the method described in claim 1, it is characterised in that the blade (6) includes the sub- blade of upper, middle and lower three-level.
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| CN201710318871.1A CN107098355B (en) | 2017-05-08 | 2017-05-08 | A kind of quick stripping means of expanded vermiculite |
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| CN201710318871.1A CN107098355B (en) | 2017-05-08 | 2017-05-08 | A kind of quick stripping means of expanded vermiculite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111233509A (en) * | 2020-01-17 | 2020-06-05 | 西南科技大学 | Vermiculite nanosheet and preparation method thereof |
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| CN105688713A (en) * | 2016-04-29 | 2016-06-22 | 句容市华艺工艺品有限公司 | Stirrer with detachable stirring paddle |
| CN106589451A (en) * | 2016-12-14 | 2017-04-26 | 塔里木大学 | Method for preparing PVC heat stabilizer by taking vermiculite as raw material |
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| RU2240179C1 (en) * | 2003-09-22 | 2004-11-20 | Лизенко Владимир Иванович | Device for continuous dispersion and mixing of loose materials |
| CN102070154A (en) * | 2010-12-07 | 2011-05-25 | 东华大学 | Preparation method of inorganic vermiculite film |
| CN202316137U (en) * | 2011-11-22 | 2012-07-11 | 江苏赛德力制药机械制造有限公司 | Scraper with filter cake crushing device |
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| CN105688713A (en) * | 2016-04-29 | 2016-06-22 | 句容市华艺工艺品有限公司 | Stirrer with detachable stirring paddle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111233509A (en) * | 2020-01-17 | 2020-06-05 | 西南科技大学 | Vermiculite nanosheet and preparation method thereof |
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| CN107098355B (en) | 2019-05-07 |
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