CN106733062A - Tubers powder electric field dispersal device - Google Patents
Tubers powder electric field dispersal device Download PDFInfo
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- CN106733062A CN106733062A CN201710095303.XA CN201710095303A CN106733062A CN 106733062 A CN106733062 A CN 106733062A CN 201710095303 A CN201710095303 A CN 201710095303A CN 106733062 A CN106733062 A CN 106733062A
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- powder
- electric field
- tubers
- insulation box
- high voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
- B02C2019/183—Crushing by discharge of high electrical energy
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- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Electrostatic Spraying Apparatus (AREA)
Abstract
Tubers powder electric field dispersal device, its composition is as follows：Powder feeding portion (1), insulation box (2), powder handling portion (3), powder collection portion (4), externally fed and transforming portion (5)；Wherein：Powder handling portion (3) connects with powder feeding portion (1), powder collection portion (4), externally fed and transforming portion (5) respectively；Externally fed and transforming portion (5) are connected to form high voltage electric field with the positive and negative electrode in powder handling portion (3), powder material is uniformly input into powder handling portion (3) in powder feeding portion (1), and the powder after treatment is fallen into powder collection portion (4)；Powder handling portion (3) makes to realize between powder granule mutually dispersion by high voltage electric field, and to mitigate, powder is inter-adhesive in storage process, mutual reunion phenomenon.The present invention is workable, and technique effect is excellent, and it has expected more huge economic worth and social value.
Description
Technical field
The present invention relates to the structure design of tubers powder electric field dispersal device, it is mainly used in rhizome agricultural products and adds
Work technical field, belongs to the typical technology problem in mechanization of agriculture field, invention especially provides a kind of tubers powder electricity
Field dispersal device.
Background technology
In the prior art, the crushing of rhizome vegetable, is the common methods in processing of farm products, with crushing side in recent years
The particle diameter of the progressive tubers powder of method is progressively more refined.But with the refinement of particle, powder processing, process, deposited
In journey all can root be agglomerated into larger particles again, these are due to the effect of power between particle, and the particle reunited again is often more difficult
Dispersion, so as to have impact on powder quality.The origin cause of formation of powder reuniting phenomenon, mainly due to three kinds existing between powder granule
The effect of power, i.e. Van der Waals force, electrostatic force, liquid bridge power.The upper of temperature and moisture content occurs in crushing process due to material
Rise, friction of the particle between contactant can promote the effect of electrostatic force and liquid bridge power between particle (referring to document 1：King looks for hall,
The Agglomeration Mechanism and sign and elimination [J] China powder technology of Li Mei, Liu Zhaogang, Hu Yanhong superfine powders, 2008,03:46-
51+59.)。
Powder reuniting refers to primary sub-micron-powder preparing, separate, during treatment and storage, be connected with each other,
Interact and be bonded into larger particle clusters phenomenon (referring to document 2 by multiple particles：Ji Shoufeng, Li Gui spring superfine powder
Progress On Agglomeration Mechanism [J] Chinese Mining Industries, 2006,15 (8)：54-56,90.).During power production, either without
Machine mineral raw material or organic agronomic crop all can produce powder reuniting phenomenon with the change of temperature and moisture content.Powder reuniting
Phenomenon be it is a kind of be difficult the phenomenon that avoids, during Crushing of Ultrafine, powder reuniting phenomenon it is serious constrain disintegrating process.
With the development of PM technique and agro-processing technology, increasing people take to grinding for correlation
Study carefully work.(referring to document 3：Research [J] electronic products of Xin Hui, a rock nano-powder reunion solution and dispersion technology
Exploitation and innovation, 2012,05:38-40.) by analyzing FAQs of the ultrafine powder in preparation and use to powder reuniting
The ameliorative way of phenomenon is inquired into.(referring to document 4：Zhang Wencheng, Wang Jianrong, Shi Ruixia nano-powder dispersion technologies grind
Study carefully progress [J] modern times commerce and trade industry, 2009,02:284-286.) summarize ultrafine powder the reason for reunite, dispersion technology and change
The mechanism of action of kind powder reuniting, and progress to nano-powder discussed.(referring to document 5：Cao Ruijun, Lin Chen
Light, Sun Lan, Zhao calls on woods, and Liu is total, goes into business into reunion and its removing method [J] PM techniques of factory's superfines, and 2006,
06:460-466.) have studied agglomeration mechanism and removing method in PM technique.Due to powder reuniting phenomenon
What is understood gos deep into, and the method for improving powder reuniting phenomenon is also more and more.High voltage electric field treatment, because it has in processing procedure
Have the characteristics of not heating up, pollute small, efficiency high, receive the attention of processing of farm products industry, also therefore, one efficiently, safety,
The processing unit of simple structure becomes the expectation of people.
With the development of Physical Agriculture and processing of farm products technique, the research for high voltage electric field is gradually goed deep into.Powder point
The extraction of active ingredient and high voltage electric field composite drying effect technique etc. in scattered, powder charge characteristic and activity treatment, powder
Aspect has more in-depth study.
Referring to document 6：Ren Jun, Lu Shouci, Shen Jian, wait the electrostatic anti-agglomeration of ultra-fine grains to disperse [J] Science Bulletins,
2000,21：2289-2292. appoints the electrostatic anti-agglomeration dispersion to ultra-fine grain such as person of outstanding talent to be studied, and shows that electrostatic method is one
Effective anti-agglomeration process for dispersing is planted, it has significant anti-agglomeration peptizaiton to ultramicro powder.Xu Zheng, Lu Shouci have studied
Carrying capacity disperses and its dispersion effect influence on ultrafine powder electrostatic, and powered property and rule to particle are studied, point
The charged rule in corona field of particle has been analysed with dispersion effect (referring to document 7：The kind carrying capacities of Xu Zheng, Lu Shou are to superfine powder
Body electrostatic dispersion and its dispersion effect influence [J] China powder technology, 2004,10：227-231.).Li Guichun, Ji Shoufeng couple
Wilsonii powder carries out electrostatic dispersion research, the dispersion effect and major influence factors of experimental study wilsonii powder agglomerate,
And electrostatic dispersion effect is detected and evaluated with equipment such as Particle Size Analyzer, ESEMs；Experiment results proved, electrostatic
Process for dispersing is to dispersion wilsonii powder effect is significant (referring to document 8：Li Guichun, discipline keeps the electrostatic dispersion of peak wilsonii powders
Research [J] China powder technology, 2007,13 (8)：151-153.)；Han Z are carried out to high-pressure pulse electric treatment tapioca
Experimental study, shows that high-pressure pulse electric can make its molecular structure and physicochemical property change, and increased dissolubility；Cause
This high-pressure electrostatic field energy promotes powder dispersion, changes its physicochemical property and have wide application prospect.
T.R.Bajgai and F.Hashinaga was tested spinach using high electric field drying mode first in 2001
Research, it was demonstrated that high voltage electric field has the advantages that not heat up in agricultural material drying process, high efficiency, low-power consumption.Liang Yunzhang
High electric field drying mechanism is studied with reference to domestic and international achievement in research, moisture is mainly led by electric field in the electric field in material
Graviational interaction, action intensity is directly proportional to air, the dielectric constant of material and electric-field intensity.In addition, fourth Chang River, beam fortune Zhang Yu
Experimental study has been carried out within 2004 to high electric field drying of carrot (referring to document 9：Fourth Chang River, beam fortune chapter high electric field dryings
Experimental study [J] EIs of carrot, 2004,20 (4)：220-222.)；Fourth Chang River, Lu Jingli is right in 2008
Drying property of the beef under high voltage electrostatic field is analyzed；Bai Ya townshiies, Hu Yucai is in 2008 etc. to high voltage electric field
Inquired into (referring to document 10 with hot blast combination drying dried shrimps：Bai Ya townshiies, Hu Yucai high voltage electric fields are combined with vacuum refrigeration
Dry sea cucumber method and its utility analysis [J] High-Voltage Technologies, 2014 (7)：2191-2196.)；Huang little Li is equal to 2010
Carrot to being pre-processed by high-pressure pulse electric has carried out microwave combination drying test；Result of study shows that high voltage electric field is
A kind of effective drying means, due to the direct transmission of no heat, the temperature of material is not changed significantly, and can keep thing
The active ingredient of material is not suffered a loss (referring to document 11：The pretreatment carrot slice microwave drying experiment of Huang little Li, Yang Wei impulse electric fields
[J] EIs, 2010,26 (2)：325-330.).The maximum feature of high electric field drying technology be dried object not
Heat up, effectively save the color, smell and taste and bioactive ingredients of dried material.
People are highly desirable to obtain a kind of excellent tubers powder electric field dispersal device of technique effect.
The content of the invention
It is an object of the invention to provide a kind of excellent tubers powder electric field dispersal device of technique effect.
The invention provides a kind of tubers powder electric field dispersal device, it is characterised in that：Its specific composition is as follows：Powder
Feeding portion 1, insulation box 2, powder handling portion 3, powder collection portion 4, externally fed and transforming portion 5；Wherein：The main body of device
It is insulation box 2, powder feeding portion 1 is supported on the top of insulation box 2, and powder material can be uniformly gentle by self gravitation effect,
Be directed in powder handling portion 3；Powder collection portion 4 is arranged in the bottom of insulation box 2, powder collection portion 4 can with it is exhausted
Edge casing 2 is fitted close, and the powder after treatment is collected；Powder feeding portion 1 respectively upward and lower opening, its inner chamber
It is open above and below insertion, and its inner chamber and the inner space of powder handling portion 3；The inner chamber lower part outlet in powder handling portion 3 connects
Lead to powder collection portion 4；Externally fed and transforming portion 5 are connected with powder handling portion 3；
Externally fed and transforming portion 5 are connected to form high voltage electric field, insulation box 2 with the positive and negative electrode in powder handling portion 3
On powder feeding portion 1 powder material is uniformly input into powder handling portion 3, the powder after treatment is fallen into powder collection portion 4；
Powder handling portion 3 in the tubers powder electric field dispersal device acts on tubers vegetable by high voltage electric field principle
Dish material powder, powder is inter-adhesive in storage process, mutual reunion to mitigate to make to realize between powder granule mutually dispersion
Influence of the phenomenon to tubers powder quality.
The tubers powder electric field dispersal device, it is characterised in that：
Powder handling portion 3 constitutes including positive electrode 31, insulating support 32, earth electrode 33 and support section 34, wherein：Just
Electrode 31 is fixed on insulation box 2 by insulating support 32；Earth electrode 33 is negative electrode, and it passes through insulating support 32 and installs
In in insulation box 2, to form high voltage electric field treatment space, powder is processed.
Multiple wiring holes are provided with insulation box 2 and draw-in groove is installed, powder feeding portion 1 can be supported, and pacify for fixed
The positive electrode 31 and insulating support 32 in dress powder handling portion 3, it also fixes powder handling portion 3 and powder successively by hierarchic structure
Collection portion 4, ensure that powder passes through powder handling portion 3 and falls into powder collection portion 4；To ensure what electrode was installed
The security of insulating requirements and operating environment.
The insulating support 32 of the installation of positive electrode 31 is supported in insulation box 2, and support specific constructive form is ladder
Shape supporting construction, the latter half of stepped supporting construction is the cylinder-like structure that there is vestibule inside, and its aperture is with installed in it
In earth electrode 33 external diameter it is identical；The top half of stepped supporting construction is that cross section is foursquare tubular structure,
The length of side of square cross section is big diameter etc. with lower section cylinder-like structure internal diameter；
Meanwhile, in stepped supporting construction top cross section for every one side of square portion is both provided with that electricity can be installed
The groove of line, fixed insulation support 32 is carried out with this；
The top half of stepped supporting construction is placed on for insulation branch that cross section is foursquare bottom part of tubular structure
Frame 32 meets following requirements：Its four side is Filled Rectangle, and centre is cross support, and cross support intermediate connections are hollow
Cylindrical-shaped structure, is provided with wire and can completely cut off wire and contacted with other parts to be protected to it in it.
220V alternating currents are converted into the adjustable direct currents of 0-50kV by externally fed and transforming portion 5 first, are then distinguished
It is input to positive electrode and negative electrode in device so that electrical potential difference higher is formed between two electrodes so as in electric field treatment
High voltage electric field is formed in space；
Can be acted on by high voltage electric field when by treatment space by the powder that Action of Gravity Field falls, powder granule exists
Scattered purpose each other is realized in the presence of electric field force and gravity；Simultaneously as electric-field charge is acted on, carried between powder granule
The electric charge of same nature, it is mutually exclusive between same sex electric charge, can to a certain extent suppress the reunion again of powder.
Powder granule is realized in charged effect of the present invention by the high voltage electric field formed in process part powder
Mutually dispersion, powder, by being fallen into after process part in powder collection portion 4, completes whole dispersion process by self gravitation.
Specifically, the mutual dispersion of powder granule is realized in its charged effect for passing through high voltage electric field, and whole dispersion process does not have
There is temperature change, the influence to heat-sensitive substance content in powder is smaller；Simultaneously as dispersion process does not add dispersant etc. to change
Medicine is learned, to the less pollution of agricultural product material.In addition, the positive and negative of dispersal device can be changed as needed, this
Effectively expand the use scope of dispersal device.
The present invention proposes a kind of workable, the excellent tubers powder electric field dispersal device of technique effect and corresponding
Tubers powder electric field process for dispersing, it has expected more huge economic worth and social value.
Brief description of the drawings
Below in conjunction with the accompanying drawings and implementation method the present invention is further detailed explanation：
Fig. 1 is powder dispersal device structure schematic diagram；
Fig. 2 is powder dispersal device internal structure simplified schematic diagram；
Fig. 3 is that positive electrode 31 accesses schematic diagram；
Fig. 4 is the schematic diagram of insulating support 32.
Specific embodiment
Supplementary notes on accompanying drawing：Powder handling portion 3, powder collection portion 4 in Fig. 1 be by it from insulation box 2
The structural representation for launching displaying is pulled out, when physical device works, powder handling portion 3, powder collection portion 4 should retraction insulated cases
In body 2.
Embodiment 1
A kind of tubers powder electric field dispersal device, its specific composition is as follows：Powder feeding portion 1, insulation box 2, powder
Processing unit 3, powder collection portion 4, externally fed and transforming portion 5；Wherein：The main body of device is insulation box 2, powder feeding portion
1 is supported on the top of insulation box 2, and powder material uniformly gentle can be directed to powder handling portion 3 by self gravitation effect,
It is interior；Powder collection portion 4 is arranged in the bottom of insulation box 2, and powder collection portion 4 can be fitted close with insulation box 2, will process
Powder afterwards is collected；Powder feeding portion 1 upward and lower opening, is open above and below its inner chamber insertion respectively, and
Its inner chamber and the inner space of powder handling portion 3；The inner chamber lower part outlet in powder handling portion 3 connects powder collection portion 4；Outside supplies
Electricity and transforming portion 5 are connected with powder handling portion 3；
Externally fed and transforming portion 5 are connected to form high voltage electric field, insulation box 2 with the positive and negative electrode in powder handling portion 3
On powder feeding portion 1 powder material is uniformly input into powder handling portion 3, the powder after treatment is fallen into powder collection portion 4；
Powder handling portion 3 in the tubers powder electric field dispersal device acts on tubers vegetable by high voltage electric field principle
Dish material powder, powder is inter-adhesive in storage process, mutual reunion to mitigate to make to realize between powder granule mutually dispersion
Influence of the phenomenon to tubers powder quality.
Powder handling portion 3 constitutes including positive electrode 31, insulating support 32, earth electrode 33 and support section 34, wherein：Just
Electrode 31 is fixed on insulation box 2 by insulating support 32；Earth electrode 33 is negative electrode, and it passes through insulating support 32 and installs
In in insulation box 2, to form high voltage electric field treatment space, powder is processed.
Multiple wiring holes are provided with insulation box 2 and draw-in groove is installed, powder feeding portion 1 can be supported, and pacify for fixed
The positive electrode 31 and insulating support 32 in dress powder handling portion 3, it also fixes powder handling portion 3 and powder successively by hierarchic structure
Collection portion 4, ensure that powder passes through powder handling portion 3 and falls into powder collection portion 4；To ensure what electrode was installed
The security of insulating requirements and operating environment.
The insulating support 32 of the installation of positive electrode 31 is supported in insulation box 2, and support specific constructive form is ladder
Shape supporting construction, the latter half of stepped supporting construction is the cylinder-like structure that there is vestibule inside, and its aperture is with installed in it
In earth electrode 33 external diameter it is identical；The top half of stepped supporting construction is that cross section is foursquare tubular structure,
The length of side of square cross section is big diameter etc. with lower section cylinder-like structure internal diameter；
Meanwhile, led for every one side of square portion is both provided with installing in stepped supporting construction top cross section
The groove of line, fixed insulation support 32 is carried out with this；
The top half of stepped supporting construction is placed on for insulation branch that cross section is foursquare bottom part of tubular structure
Frame 32 meets following requirements：Its four side is Filled Rectangle, and centre is cross support, and cross support intermediate connections are hollow
Cylindrical-shaped structure, is provided with wire and can completely cut off wire and contacted with other parts to be protected to it in it.
220V alternating currents are converted into the adjustable direct currents of 0-50kV by externally fed and transforming portion 5 first, are then distinguished
It is input to positive electrode and negative electrode in device so that electrical potential difference higher is formed between two electrodes so as in electric field treatment
High voltage electric field is formed in space；
Can be acted on by high voltage electric field when by treatment space by the powder that Action of Gravity Field falls, powder granule exists
Scattered purpose each other is realized in the presence of electric field force and gravity；Simultaneously as electric-field charge is acted on, carried between powder granule
The electric charge of same nature, it is mutually exclusive between same sex electric charge, can to a certain extent suppress the reunion again of powder.
Powder granule is realized in charged effect of the present embodiment by the high voltage electric field formed in process part powder
Mutual dispersion, powder by being fallen into after process part in powder collection portion 4, completes whole dispersion process by self gravitation.
Specifically, the mutual dispersion of powder granule is realized in its charged effect for passing through high voltage electric field, and whole dispersion process does not have temperature to become
Change, the influence to heat-sensitive substance content in powder is smaller；Simultaneously as dispersion process does not add the chemicals such as dispersant,
To the less pollution of agricultural product material.In addition, the positive and negative of dispersal device can be changed as needed, this also effectively expands
The big use scope of dispersal device.
The present embodiment proposes a kind of workable, the excellent tubers powder electric field dispersal device of technique effect and phase
The tubers powder electric field process for dispersing answered, it has expected more huge economic worth and social value.
Claims (5)
1. tubers powder electric field dispersal device, it is characterised in that：Its composition is as follows：Powder feeding portion (1), insulation box (2),
Powder handling portion (3), powder collection portion (4), externally fed and transforming portion (5)；Wherein：The main body of device is insulation box
(2), powder feeding portion (1) is supported on insulation box (2) top, the quilt that powder material can be uniformly gentle by self gravitation effect,
In guiding to powder handling portion (3)；Powder collection portion (4) is arranged in the bottom of insulation box (2), and powder collection portion (4) can
It is fitted close with insulation box (2), the powder after treatment is collected；Powder feeding portion (1) opens with lower section upward respectively
Mouthful, it is open above and below its inner chamber insertion, and its inner chamber and powder handling portion (3) inner space；Powder handling portion (3) it is interior
Chamber lower part outlet connects powder collection portion (4)；Externally fed and transforming portion (5) are connected with powder handling portion (3)；
Externally fed and transforming portion (5) are connected to form high voltage electric field, insulation box with the positive and negative electrode in powder handling portion (3)
(2) powder material is uniformly input into the powder feeding portion (1) on powder handling portion (3), and the powder after treatment falls into powder receipts
In collection portion (4)；
Powder handling portion (3) in the tubers powder electric field dispersal device acts on tubers powder by high voltage electric field principle
Body, powder is inter-adhesive in storage process, mutual reunion phenomenon pair to mitigate to make to realize between powder granule mutually dispersion
The influence of tubers powder quality.
2. according to tubers powder electric field dispersal device described in claim 1, it is characterised in that：
Powder handling portion (3) constitutes including positive electrode (31), insulating support (32), earth electrode (33) and support section (34),
Wherein：Positive electrode (31) is fixed on insulation box (2) by insulating support (32)；Earth electrode (33) is negative electrode, and it leads to
Cross insulating support (32) to be installed in insulation box (2), to form high voltage electric field treatment space, powder is processed.
3. according to tubers powder electric field dispersal device described in claim 1 or 2, it is characterised in that：Insulation box is provided with (2)
Multiple wiring holes and installation draw-in groove, can support powder feeding portion (1), and for fixedly mounting the positive electricity of powder handling portion (3)
Pole (31) and insulating support (32), it also fixes powder handling portion (3) and powder collection portion (4), energy successively by hierarchic structure
Enough ensure that powder passes through powder handling portion (3) and falls into powder collection portion (4)；To ensure that the insulation that electrode is installed will
Ask and operating environment security；
The insulating support (32) of positive electrode (31) installation is supported in insulation box (2), and support specific constructive form is rank
Scalariform supporting construction, the latter half of stepped supporting construction is the cylinder-like structure that there is vestibule inside, and its aperture is same to be arranged on
The external diameter of earth electrode (33) therein is identical；The top half of stepped supporting construction is that cross section is foursquare tubular knot
Structure, the length of side of square cross section is big with the intracavity diameter of lower section cylinder-like structure etc.；
Meanwhile, in stepped supporting construction top cross section for every one side of square portion is both provided with that electric wire can be installed
Groove, and fixed insulation support (32) is come with this；
The top half of stepped supporting construction is placed on for insulating support that cross section is foursquare bottom part of tubular structure
(32) following requirements are met：Its four side is Filled Rectangle, and centre is cross support, and cross support intermediate connections are hollow
Cylindrical-shaped structure, is provided with wire and can completely cut off wire and contacted with other parts to be protected to it in it.
4. tubers powder electric field dispersal device according to claim 1 or claim 2, it is characterised in that：Externally fed and change splenium
Divide (5) that 220V alternating currents are converted into the adjustable direct currents of 0-50kV first, the positive electricity in device is then input to respectively
Pole and negative electrode so that electrical potential difference higher is formed between two electrodes to form high voltage electric field in electric field treatment space；
Can be acted on by high voltage electric field when by treatment space by the powder that Action of Gravity Field falls, powder granule is in electric field
Scattered purpose each other is realized in the presence of power and gravity；Simultaneously as electric-field charge is acted on, with identical between powder granule
The electric charge of property, it is mutually exclusive between same sex electric charge, the reunion again of powder can be suppressed.
5. tubers powder electric field dispersal device according to claim 3, it is characterised in that：Externally fed and transforming portion
(5) 220V alternating currents are converted into the adjustable direct currents of 0-50kV first, the positive electrode in device is then input to respectively
And negative electrode so that electrical potential difference higher is formed between two electrodes to form high voltage electric field in electric field treatment space；
Can be acted on by high voltage electric field when by treatment space by the powder that Action of Gravity Field falls, powder granule is in electric field
Scattered purpose each other is realized in the presence of power and gravity；Simultaneously as electric-field charge is acted on, with identical between powder granule
The electric charge of property, it is mutually exclusive between same sex electric charge, the reunion again of powder can be suppressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095303.XA CN106733062A (en) | 2017-02-22 | 2017-02-22 | Tubers powder electric field dispersal device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095303.XA CN106733062A (en) | 2017-02-22 | 2017-02-22 | Tubers powder electric field dispersal device |
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Family
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111940092A (en) * | 2019-05-16 | 2020-11-17 | 北京大地高科地质勘查有限公司 | Supplementary coal sample grinder of static |
| CN117585462A (en) * | 2023-12-13 | 2024-02-23 | 江苏宜锂科技有限责任公司 | Combined feeding method for avoiding powder jamming in conveying pipeline |
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| CN117585462A (en) * | 2023-12-13 | 2024-02-23 | 江苏宜锂科技有限责任公司 | Combined feeding method for avoiding powder jamming in conveying pipeline |
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Application publication date: 20170531 |