CN104445171A - Homogenization method and device of powder - Google Patents
Homogenization method and device of powder Download PDFInfo
- Publication number
- CN104445171A CN104445171A CN201410744644.1A CN201410744644A CN104445171A CN 104445171 A CN104445171 A CN 104445171A CN 201410744644 A CN201410744644 A CN 201410744644A CN 104445171 A CN104445171 A CN 104445171A
- Authority
- CN
- China
- Prior art keywords
- powder
- feed bin
- ultrasonic treatment
- standard
- recycled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Combined Means For Separation Of Solids (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a homogenization method of powder. The homogenization method comprises the following steps: conveying a mixture of the powder to be homogenized and a liquid solvent to an ultrasonic treatment device and a powder grading device simultaneously by a bin; simultaneously operating the ultrasonic treatment device and the powder grading device; returning the mixture after ultrasonic treatment to the bin, conveying the powder treated by the powder grading device and with standard particle diameter and the liquid solvent to a membrane separation device, and returning the powder treated by the powder grading device and without standard particle diameter and the liquid solvent to the bin; conveying pulp treated by the membrane separation device to a solid-liquid separation device and simultaneously returning the liquid solvent separated by a membrane to the ultrasonic treatment device; and conveying the powder treated by the solid-liquid separation device to a finished-product warehouse. The homogenization method provided by the invention has the advantages that the powder is dispersed by adopting the liquid solvent, ultrasonic treatment and the sieving treatment are carried out simultaneously, and the powder with the physical size meeting the requirement can be separated out in time, so that the problem of the homogeneity of the particle diameter of the powder is solved.
Description
Technical field
The present invention relates to chemical technology field, be specifically related to a kind of powder homogenization methods and realize the equipment of the method.
Background technology
Early 1980s, powder body technology grows up gradually, and increasingly becomes the emphasis of countries in the world research.
Described powder body refers to, physical size, between molecule, between atom and bulk material, makes a general reference the smile solid particulate within the scope of D97≤10 μm usually.Powder body can comprise: the particle of metal, the multiple material such as nonmetal, organic and inorganic and biological, along with the super-refinement of material, its Electronic Structure and crystalline structure there occurs change, create surface effects, small-size effect, quantum effect and macro quanta tunnel effect that bulk material does not possess, thus make superfine powder have a series of physics, chemical property of having a mind to compared with conventional particulate materials.
Superfine powder has many special performances, mainly comprise: specific surface area is large, fusing point is low, magnetic is strong, activity is good, absorbance is high, thermal conductivity is good, therefore, powder body technology has in industries such as weaving, food, building materials, mining industry, information, chemical industry, medicine, national defence and applies very widely.
At present, the technology of preparing difficult point of ultrafine powder is that the dispersiveness of the homogeneity of size distribution, powder is not good.In Graphene preparation process, have following problem: be separated and thoroughly do not form class Graphene; Or in order to obtain the higher Graphene of purity, the long Graphene radial separation that causes of disengaging time is excessive.Further, obtain in the processes such as the mixture of the high graphite flake of purity, Graphene and class Graphene from the graphite flake powder that purity is lower, also need a kind of novel powder to homogenize treatment process.
Summary of the invention
Because described in background technology, the object of this invention is to provide a kind of method and apparatus can preparing uniform grading powder, solve the too high problem of the loss in preparation process that causes due to self light weight of powder simultaneously.
The object of the invention is to be achieved through the following technical solutions:
A kind of powder homogenization treatment device, it comprises:
Ultrasonic treatment unit, powder classification device, membrane separation unit and equipment for separating liquid from solid;
Described ultrasonic treatment unit is all connected with the feed bin for holding pending raw material with the entrance of described powder classification device; Described pending raw material comprises the powder for the treatment of homogenization treatment and for disperseing the liquid solvent of described powder;
The outlet of described ultrasonic treatment unit is communicated with described feed bin, for by the powder conveying through ultrasonication to described feed bin;
The entrance of described membrane separation unit and the outlet of described powder classification device, described membrane separation unit is also provided with liquid exit, and the liquid solvent for being gone out by membrane sepn is recycled to described ultrasonic treatment unit;
The entrance of described equipment for separating liquid from solid is connected with the outlet of described membrane separation unit, and the solid outlet of described equipment for separating liquid from solid is connected to finished bin;
Described ultrasonic treatment unit is used for the particle diameter of pending powder to reduce, and homogenize raising;
Described powder classification device is used for pending raw material to carry out classification according to particle diameter, and powder up to standard leads to described membrane separation unit with solvent, and powder not up to standard is recycled to described feed bin by passage;
Described membrane separation unit and described equipment for separating liquid from solid are all for by described qualified powder and separated from solvent.
Preferably, described powder classification device comprises Multistage filtering device, is described powder up to standard by the powder of all described filtration units, and be not described powder not up to standard by the powder of filtration unit described in any one-level, it is all recycled to described feed bin.
Preferably, described powder not up to standard passes through many described passages be arranged between every grade of described filtration unit and described feed bin respectively and is transferred to described feed bin, or, transfer to described feed bin by the single channel be arranged between described Multistage filtering device and described feed bin.
Preferably, described ultrasonic treatment unit is one group of ultrasonic processing equipment with frequency difference.
The present invention also provides a kind of powder homogenization methods, comprises the following steps:
Carried to ultrasonic treatment unit and powder classification device by feed bin simultaneously and treat the powder of homogenization treatment and the mixture for disperseing the liquid solvent of described powder to be formed;
Described ultrasonic treatment unit carries out supersound process to described powder, and meanwhile, described powder classification device carries out particle diameter screening process to described powder;
Powder through described ultrasonic treatment unit supersound process is recycled to described feed bin together with described liquid solvent, powder up to standard for particle diameter through described powder classification device screening process is delivered to membrane separation unit together with described liquid solvent, powder not up to standard for the particle diameter through described powder classification device screening process is recycled to described feed bin together with described liquid solvent;
The concentration of the mixture that described powder and liquid solvent are formed improves by described membrane separation unit, forms soup compound;
Soup compound through described membrane separation unit process is transferred to equipment for separating liquid from solid, the liquid solvent that membrane sepn goes out is recycled to described ultrasonic treatment unit simultaneously;
By the powder conveying through described equipment for separating liquid from solid process to stockyard.
Preferably, described powder classification device comprises Multistage filtering device, is described powder up to standard by the powder of all described filtration units, and be not described powder not up to standard by the powder of filtration unit described in any one-level, it is all recycled to described feed bin.
Described powder not up to standard passes through many described passages be arranged at described in any one-level between filtration unit and described feed bin respectively and is recycled to described feed bin, or, be recycled to described feed bin by the single channel be arranged between described Multistage filtering device and described feed bin.
Compared with prior art, the present invention possesses following advantage:
Use liquid solvent to be disperseed by powder, supersound process and classification (screening) process are carried out simultaneously, and the physical size of powder meets the requirements, namely up to standard, just can be separated in time, thus obtained the powder of uniform particle sizes, thus solved the problem of diameter of particle homogeneity.
Embodiment
embodiment one:
The present embodiment provides a kind of powder homogenization treatment device, and as shown in Figure 1, it comprises:
Feed bin, ultrasonic treatment unit (the 20KHZ 3000W that Ningbo Xian Chang company produces), powder classification device, membrane separation unit and equipment for separating liquid from solid.
Described feed bin is for holding the powder for the treatment of homogenization treatment and the liquid solvent for diluting described powder; Described ultrasonic treatment unit is used for carrying out supersound process to described pending powder, namely reduces the particle diameter of powder, improves homogenizing of powder; Described powder classification device is used for carrying out multi-stage screening to described pending powder, filters out the powder that particle diameter is not up to standard, sieves out powder up to standard; Described membrane separation unit and equipment for separating liquid from solid all for qualified powder and liquid solvent being separated, thus prepare qualified solid powder.
Described ultrasonic treatment unit is all connected with the feed bin for holding pending raw material with the entrance of described powder classification device.
The outlet of described ultrasonic treatment unit is communicated with described feed bin, for by the powder conveying through ultrasonication to described feed bin.
The entrance of described membrane separation unit and the outlet of described powder classification device.
The entrance of described equipment for separating liquid from solid is connected with the outlet of described membrane separation unit, and the solid outlet of described equipment for separating liquid from solid is connected to finished bin, and its liquid exit is connected to described ultrasonic treatment unit.
Also loopback channel is provided with, for being recycled in described feed bin by underproof powder between described powder classification device and described feed bin.
Preferably, described powder classification device comprises Multistage filtering device, is described powder up to standard by the powder of most subordinate filtration unit, and be not described powder not up to standard by the powder of filtration unit described in any one-level, it is all recycled to described feed bin.Preferably, described filtration unit is the screen cloth with satisfactory order number.
Optionally, described powder not up to standard passes through many described passages be arranged between the described filtration unit of arbitrary level and described feed bin respectively and is transferred to described feed bin, or, transfer to described feed bin by the single channel be arranged between described Multistage filtering device and described feed bin.
Concrete powder handling flow process is: need be dispersed in liquid solvent and form mixture by powder granule to be processed, described mixture had simultaneously ultrasonic treatment unit and one group of powder classification device of frequency difference by one group, powder granule is under ultrasonic cavitation effect, granularity starts slow decline, simultaneously relatively uniformization; Meanwhile; powder granule is after stage equipment; the powder granule meeting Particle size requirements can be separated, and the underproof powder granule that particle diameter is greater than requirement can return feed bin, and feed bin is again to ultrasonic treatment unit transferring raw material ... this process lasts carries out.Because powder granule is dispersed in described liquid solvent, therefore, in the process of classification, understand some liquid solvent along with powder granule be sent to sieve together under (namely discharging described powder classification device), can recycle for making liquid solvent, one group of membrane separation plant is used to be separated by liquid solvent, and deliver to described ultrasonic treatment unit continuation utilization, in addition, in order to obtain dry powder, recycling described equipment for separating liquid from solid and isolating solid-state powder granule further from the soup compound that membrane sepn obtains.
embodiment two:
The present embodiment provides a kind of powder homogenization methods, it is characterized in that, comprises the following steps:
Carried to ultrasonic treatment unit and powder classification device by feed bin simultaneously and treat the powder of homogenization treatment and the mixture for disperseing the liquid solvent of described powder to be formed;
Described ultrasonic treatment unit carries out supersound process to described powder, and meanwhile, described powder classification device carries out particle diameter screening process to described powder;
Powder through described ultrasonic treatment unit supersound process is recycled to described feed bin together with described liquid solvent, powder up to standard for particle diameter through described powder classification device screening process is delivered to membrane separation unit together with described liquid solvent, powder not up to standard for the particle diameter through described powder classification device screening process is recycled to described feed bin together with described liquid solvent;
The concentration of the mixture that described powder and liquid solvent are formed improves by described membrane separation unit, forms soup compound;
Soup compound through described membrane separation unit process is transferred to equipment for separating liquid from solid, the liquid solvent that membrane sepn goes out is recycled to described ultrasonic treatment unit simultaneously;
By the powder conveying through described equipment for separating liquid from solid process to stockyard.
Preferably, described powder classification device comprises Multistage filtering device, be described powder up to standard by the powder of most subordinate filtration unit, be not described powder not up to standard by the powder of filtration unit described in any one-level, it is all by ultrasonic treatment unit described in described pipeline communication.Described Multistage filtering device can be arranged to encrypt layer by layer, that is, the order number pyramid of filtering net or screen cloth, reaches the object of sieving step by step.
Described powder not up to standard passes through many described passages be arranged at described in any one-level between filtration unit and described ultrasonic treatment unit respectively and is transferred to described ultrasonic treatment unit, or, transfer to described ultrasonic treatment unit by the single channel be arranged between described Multistage filtering device and described ultrasonic treatment unit.
Corresponding to embodiment one, described powder classification device comprises Multistage filtering device, is described powder up to standard by the powder of most subordinate filtration unit, and be not described powder not up to standard by the powder of filtration unit described in any one-level, it is all recycled to described feed bin.
Optionally, described powder not up to standard passes through many described passages be arranged at described in any one-level between filtration unit and described feed bin respectively and is recycled to described feed bin, or, be recycled to described feed bin by the single channel be arranged between described Multistage filtering device and described feed bin.
Claims (7)
1. a powder homogenization treatment device, is characterized in that: it comprises:
Ultrasonic treatment unit, powder classification device, membrane separation unit and equipment for separating liquid from solid;
Described ultrasonic treatment unit is all connected with the feed bin for holding pending raw material with the entrance of described powder classification device; Described pending raw material comprises the powder for the treatment of homogenization treatment and for disperseing the liquid solvent of described powder;
The outlet of described ultrasonic treatment unit is communicated with described feed bin, for by the powder conveying through ultrasonication to described feed bin;
The entrance of described membrane separation unit and the outlet of described powder classification device, described membrane separation unit is also provided with liquid exit, and the liquid solvent for being gone out by membrane sepn is recycled to described ultrasonic treatment unit;
The entrance of described equipment for separating liquid from solid is connected with the outlet of described membrane separation unit, and the solid outlet of described equipment for separating liquid from solid is connected to finished bin;
Described ultrasonic treatment unit is used for the particle diameter of pending powder to reduce, and homogenize raising;
Described powder classification device is used for pending raw material to carry out classification according to particle diameter, and powder up to standard leads to described membrane separation unit with solvent, and powder not up to standard is recycled to described feed bin by passage;
Described membrane separation unit and described equipment for separating liquid from solid are all for by described qualified powder and separated from solvent.
2. powder homogenizing apparatus according to claim 1, it is characterized in that: described powder classification device comprises Multistage filtering device, be described powder up to standard by the powder of all described filtration units, be not described powder not up to standard by the powder of filtration unit described in any one-level, it is all recycled to described feed bin.
3. powder homogenizing apparatus according to claim 1, it is characterized in that: described powder not up to standard passes through many described passages be arranged between every grade of described filtration unit and described feed bin respectively and is transferred to described feed bin, or, transfer to described feed bin by the single channel be arranged between described Multistage filtering device and described feed bin.
4. powder homogenization treatment device according to claim 1, is characterized in that: described ultrasonic treatment unit is one group of ultrasonic processing equipment with frequency difference.
5. a powder homogenization methods, is characterized in that, comprises the following steps:
Carried to ultrasonic treatment unit and powder classification device by feed bin simultaneously and treat the powder of homogenization treatment and the mixture for disperseing the liquid solvent of described powder to be formed;
Described ultrasonic treatment unit carries out supersound process to described powder, and meanwhile, described powder classification device carries out particle diameter screening process to described powder;
Powder through described ultrasonic treatment unit supersound process is recycled to described feed bin together with described liquid solvent, powder up to standard for particle diameter through described powder classification device screening process is delivered to membrane separation unit together with described liquid solvent, powder not up to standard for the particle diameter through described powder classification device screening process is recycled to described feed bin together with described liquid solvent;
The concentration of the mixture that described powder and liquid solvent are formed improves by described membrane separation unit, forms soup compound;
Soup compound through described membrane separation unit process is transferred to equipment for separating liquid from solid, the liquid solvent that membrane sepn goes out is recycled to described ultrasonic treatment unit simultaneously;
By the powder conveying through described equipment for separating liquid from solid process to stockyard.
6. powder homogenization methods according to claim 5, it is characterized in that, described powder classification device comprises Multistage filtering device, be described powder up to standard by the powder of all described filtration units, be not described powder not up to standard by the powder of filtration unit described in any one-level, it is all recycled to described feed bin.
7. powder homogenization methods according to claim 5, it is characterized in that, described powder not up to standard passes through many described passages be arranged at described in any one-level between filtration unit and described feed bin respectively and is recycled to described feed bin, or, be recycled to described feed bin by the single channel be arranged between described Multistage filtering device and described feed bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410744644.1A CN104445171B (en) | 2014-12-09 | 2014-12-09 | A kind of powder body homogenization methods and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410744644.1A CN104445171B (en) | 2014-12-09 | 2014-12-09 | A kind of powder body homogenization methods and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104445171A true CN104445171A (en) | 2015-03-25 |
| CN104445171B CN104445171B (en) | 2016-07-06 |
Family
ID=52892035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410744644.1A Active CN104445171B (en) | 2014-12-09 | 2014-12-09 | A kind of powder body homogenization methods and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104445171B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621354A (en) * | 2016-01-22 | 2016-06-01 | 京东方科技集团股份有限公司 | Grain diameter refining method for nanometer particles and system for refining grain diameters of nanometer particle |
| CN112642697A (en) * | 2020-11-20 | 2021-04-13 | 佛山(华南)新材料研究院 | Method for screening micro-nano powder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202490592U (en) * | 2012-02-28 | 2012-10-17 | 昆山大世界油墨涂料有限公司 | Powder and liquid mixing device |
| CN204474331U (en) * | 2014-12-09 | 2015-07-15 | 珠海市乐通化工股份有限公司 | A kind of powder homogenization treatment device |
-
2014
- 2014-12-09 CN CN201410744644.1A patent/CN104445171B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202490592U (en) * | 2012-02-28 | 2012-10-17 | 昆山大世界油墨涂料有限公司 | Powder and liquid mixing device |
| CN204474331U (en) * | 2014-12-09 | 2015-07-15 | 珠海市乐通化工股份有限公司 | A kind of powder homogenization treatment device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621354A (en) * | 2016-01-22 | 2016-06-01 | 京东方科技集团股份有限公司 | Grain diameter refining method for nanometer particles and system for refining grain diameters of nanometer particle |
| CN105621354B (en) * | 2016-01-22 | 2019-01-18 | 京东方科技集团股份有限公司 | The partial size thinning method of nano particle and the system refined for nano particle diameter |
| CN112642697A (en) * | 2020-11-20 | 2021-04-13 | 佛山(华南)新材料研究院 | Method for screening micro-nano powder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104445171B (en) | 2016-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202621261U (en) | Machine-made sand production equipment | |
| CN104445171B (en) | A kind of powder body homogenization methods and device | |
| CN102274783A (en) | Dam core wall gravel-doped stone preparation system and method | |
| CN103212476A (en) | Integrated iron ore production device | |
| CN106829985A (en) | A kind of method of the synthetical recovery of sandy kaoline containing mica | |
| CN204474331U (en) | A kind of powder homogenization treatment device | |
| CN205164903U (en) | Totally closed automatic grinding system of carborundum | |
| CN206481977U (en) | One seed shrimp crab mixed feed production line | |
| PH12016500041A1 (en) | Method for producing raw granulation material for sintering | |
| CN105149084A (en) | Dry-wet-method mineral separation method used for African sandy diatomite ore | |
| CN1951574A (en) | Method for preparing fine powder of silicon carbide | |
| JP2006247484A (en) | Method for granulating ceramic raw material and apparatus thereof | |
| CN204470065U (en) | Stream flower beds drier screening plant | |
| CN105197970A (en) | Method for improving two-stage decomposition effect | |
| CN209866260U (en) | Steel tailings micro powder production system | |
| CN111298933B (en) | Multi-stage crushing method for blocky solids | |
| CN204136264U (en) | Deca-BDE master batch process units | |
| CN205813540U (en) | Feed Manufacturing granulating system | |
| CN202199401U (en) | System for preparing core wall gravel-doping material of dam | |
| CN206823979U (en) | A kind of complete apparatus for shaping of silicon carbide micro-powder | |
| CN103817342A (en) | Manufacturing method for tungsten powder used for making crucible in pressed mode | |
| CN205305966U (en) | Feed production system that selectivity secondary was pelletized | |
| CN210528805U (en) | Categorised collection device with urea large granule truns into mesoparticle | |
| CN208878777U (en) | A kind of coal slime device for formulating | |
| CN110509447A (en) | A kind of production line of pre-dispersed masterbatch particles of rubber chemicals and its production procedure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |