CN105855015B - A kind of depolymerization process and device of nano-powder - Google Patents
A kind of depolymerization process and device of nano-powder Download PDFInfo
- Publication number
- CN105855015B CN105855015B CN201610200080.4A CN201610200080A CN105855015B CN 105855015 B CN105855015 B CN 105855015B CN 201610200080 A CN201610200080 A CN 201610200080A CN 105855015 B CN105855015 B CN 105855015B
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- Prior art keywords
- powder
- depolymerizer
- nano
- crushing
- depolymerization
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Classifications
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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
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
- B01F27/724—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with a single helix closely surrounded by a casing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
- B02C2013/2808—Shape or construction of beater elements the beater elements are attached to disks mounted on a shaft
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Disintegrating Or Milling (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention provides a kind of depolymerization process and device of nano-powder, wherein technique includes the following steps, by nano-powder aggregate after stirring, heating, it introduces and crushes in depolymerizer, powder after depolymerization enters in cyclone collector, activator is added to the powder being collected into, activation is stirred, obtains the nano-powder of depolymerization.Solve the problems, such as that nano-powder depolymerization effect is bad in the prior art.
Description
Technical field
The present invention relates to machine-building manufacture field more particularly to a kind of techniques and device of nano-powder depolymerization.
Background technology
In recent years, with the continuous maturation of the progress of nano-powder technology and technique, the utilization of nano-powder also obtains not
It expands disconnectedly.It was verified that nano-powder is for whens filling rubber and plastic, silicon cave glue, coating, ink etc., having far superior to micron
The performance of grade powder, such as strengthening action are good, excellent in mechanical performance, and appearance is finer and smoother etc..But nano-powder was manufacturing
Cheng Zhong, the agglomeration traits especially generated during the drying process make the discounting big in actual use of the excellent properties of nano-powder
Button.Therefore, the depolymerization process of nano-powder and complete set of equipments become a vital link.
Then, domestic pulverizer producer is directed to the deagglomeration problems of nano-powder, attempts to use original disintegrating apparatus and work
Skill, some have also made the improvement of part, but still remain a series of problem, and the effect is unsatisfactory, main following points：
1. by scanning electron microscope it is known that the fineness of the primary partical of nano-powder is generally differed from 20~90 nanometers,
But powder is thinner, reunites more serious, depolymerization difficulty is bigger.Under existing process conditions, since nano-powder is lighter, so
Powder is easy to be sucked away along airflow channel, cannot get good depolymerization, and therefore, powder is frequent in use using client
There is the problem of " prostitute " (aggregate), and seriously affects every mechanical property or aesthetic measure.
2. some producers have used crushing depolymerization system and hierarchy system relative separation to overcome the problems, such as " powder is not thin "
Technology, i.e., external classification technique, although this technology alleviates to some extent that " prostitute " is more, the thinless problem of powder, but
Be return coarse powder it is too many, the new problem for causing yield degradation, energy consumption rapidly to rise.
3. electrostatic is also a key factor for causing nano-powder to reunite.Therefore, when nano-powder places a period of time
Afterwards, due to Electrostatic Absorption, and new aggregate is formed.
4. nano-powder is in the fabrication process, in order to improve the blending with organic material, generally there are the various surfaces of addition
Modifying agent.But often the covering of its modifying agent is insufficient for the joint face of powder reuniting, therefore, being put into after the completion of powder depolymerization makes
Used time is affected to some extent with the blending of organic material.
In conclusion under existing technique and appointed condition, the depolymerization of nano-powder becomes industry a great problem, seriously
Constrain the further development of nano-powder industry.
Invention content
The technical problem to be solved in the present invention is to provide a kind of depolymerization process and device of nano-powder, solve existing
The bad problem of nano-powder depolymerization effect in technology.
The invention is realized in this way：A kind of depolymerization process of nano-powder, includes the following steps, nano-powder is reunited
Body is introduced and is crushed in depolymerizer, the powder after depolymerization enters in cyclone collector, to the powder being collected into after stirring, heating
Activator is added, is stirred activation, obtains the nano-powder of depolymerization.
Further, further include step, spray activator in advance crushing in depolymerizer.
Preferably, further include step, the powder after crushing depolymerizer depolymerization is destaticed.
Preferably, the powder that cyclone collector is detached to next stage is collected with dust collector, and hot wind is led
It returns and crushes depolymerizer.
Present invention process by spraying activator in advance, preheating and etc. improve the activation rate of nano-powder, improve depolymerization
Effect also reduces thermal energy waste by way of leading back to hot wind, reduces cost.
A kind of depolymerizer of nano-powder, including crush depolymerizer, the crushing depolymerizer include cylinder, feed inlet,
Hammer disk, tup and grader into shape, the feed inlet is set to cylinder bottom side, and hammer disk is set in cylinder, and the hammer disk passes through power
Driving can the drum heart rotation, the circumference for hammering disk into shape is additionally provided with tup, includes the upper ram positioned at disk upper surface and lower surface
Lower ram, the grader is located at cylinder top, and grader discharge port is connect with the discharge port for crushing depolymerizer.
Further, further include cyclone collector and emptying auger, the cyclone collector feed end with crush depolymerizer
Discharge port connects, and discharge end is connect with emptying auger feed end, and the emptying auger further includes spraying device, for entrance
Material carries out sprinkling activator and is stirred.
Preferably, the cyclone collector air outlet is connect by return air duct with depolymerizer feed end is crushed.
Preferably, the cyclone collector air outlet is connect by deduster with return air duct.
Specifically, the hammer disk is multiple, is coaxially disposed on vertical direction in cylinder, the crushing depolymerizer feed end
Further include crushing spraying device, the crushing spraying device is for spraying activator
Specifically, the feed end for crushing depolymerizer is also equipped with heating wire, and discharge end, which is also equipped with, destatics net.
Wherein, cyclone collector refer to sieving the dust of different-grain diameter by applying different air force,
The equipment of collecting function.
The invention has the advantages that：1. by electric heater unit and hot air circulating system, make nano-powder in depolymerization
It is dried in journey, reduces water content, improve powder class；And powder is under certain hot conditions, surface-active
Agent can be melted into molten, so being conducive to subsequent stir-activating.
2. by using the forced service route of long range as the crushing depolymerization system of characteristic, nano-powder is made to obtain adequately
Depolymerization, the problem of preventing " prostitute " (powder reuniting body).
3. by Destaticizing device, the electrostatic for being adsorbed on powder surface is guided, can be effectively prevent secondary after depolymerization
Agglomeration traits.
4. by continous way emptying auger, obtain reactivating cladding after making reunion face unlock, to increase the work of powder
Rate improves the blending of powder and organic material.
Description of the drawings
Fig. 1 is the depolymerization process flow chart of the nano-powder described in the specific embodiment of the invention；
Fig. 2 is the crushing depolymerizer sectional view described in the specific embodiment of the invention；
Fig. 3 is the hammer disk schematic diagram described in the specific embodiment of the invention；
Fig. 4 is the depolymerizer connection figure of the nano-powder described in the specific embodiment of the invention；
Emptying auger schematic diagram described in the specific embodiment of the invention of the positions Fig. 5.
Reference sign：
1, pedestal；
2, feed inlet；
3, bearing assembly；
4, gear ring (stator)；
5, lower ram；
6, upper ram；
7, disk is hammered into shape；
8, cylinder；
9, wall is drained；
10, grader assembly；
11, qualified powder discharge port；
12, channel is destaticed；
13, net is destaticed；
14, cyclone collector；
15, cyclone Blowing stopper；
16, stir-activating machine；
17, nano-powder finished product discharge port；
18, deduster；
19, deduster emptying auger；
20, deduster discharge port；
21, air-introduced machine；
22, return air duct；
23, heating wire.
Specific implementation mode
In order to describe the technical content, the structural feature, the achieved object and the effect of this invention in detail, below in conjunction with embodiment
And attached drawing is coordinated to be explained in detail.
It please refers to Fig.1 as a kind of depolymerization process flow chart of nano-powder of the present invention, includes the following steps, by nano-powder
Aggregate is introduced and is crushed in depolymerizer, the powder after depolymerization enters in cyclone collector, to what is be collected into after stirring, heating
Activator is added in powder, is stirred activation, obtains the nano-powder of depolymerization.It, can by carrying out agitation heating to aggregate
So that powder, conducive to the haptoreaction with surfactant, is impacted to aggregate using crushing depolymerizer in higher temperature,
It breaks up, sufficiently fine particle is sent in cyclone collector, followed by stir-activating, has been reached and has been solved to nano-powder
Poly- effect.
In certain embodiments, further include step, spray activator in advance crushing in depolymerizer.Carry out the pre- spray of activator
Spill and be conducive to fully activate, and make its in depolymerizer just can depolymerization as early as possible, saved energy consumption.
Further include step in some other preferred embodiment, the powder after crushing depolymerizer depolymerization is destaticed.
The benefit destaticed is also to prevent the powder of depolymerization since Electrostatic Absorption effectiveness is reunited once again, improves depolymerization efficiency.
In order to further save the energy and cost, the powder that cyclone collector is detached to next stage is collected with dedusting
Device is collected, and hot wind is led back to crushing depolymerizer.The reuse of hot wind improves efficiency of energy utilization, dust collector
It collects powder and can be used for other purposes, achieved the effect that product diversification.
A kind of depolymerizer of nano-powder, including depolymerizer is crushed, it please see Figure 2 here, the crushing depolymerizer includes
Cylinder 8, feed inlet 2, hammer disk 7, tup 5 and grader 10, the feed inlet are set to 8 bottom side of cylinder, and hammer disk 7 is set to cylinder
In 8, the hammer disk 7 can be rotated by power drive around core, here referring to Fig. 3, hammer disk 7 drives rotation by bearing 3,
The circumference of hammer disk 7 is additionally provided with tup, includes the lower ram 5 of the upper ram 6 and lower surface positioned at disk upper surface, the classification
Machine 10 is located at cylinder top, and grader discharge port is connect with the discharge port for crushing depolymerizer.In practical applications, 1 is pedestal；2
For air inlet, while it being also feed inlet；3 be bearing assembly；4 be gear ring (stator)；5 be lower ram；6 be upper ram；7 be hammer
Disk；8 be cylinder；9 be drainage wall；10 grader assemblies；11 be qualified powder discharge port.Nano-powder raw material passes through feed inlet quilt
It is distinguished and admirable to be drawn onto below hammer disk, after lower ram is broken up, the channel grown by Shan, by multiple tracks tup and tooth in the channel of Shan length
Institute's depolymerization is enclosed, grader is reached, by grader, underproof powder is graded machine and gets rid of to drainage wall qualified powder, falls
Continue to crush to hammer disk.By above-mentioned crushing depolymerizer, achieve the effect that understand the poly- nano-powder of agglomerate.
In the embodiment as shown in fig.4, further include cyclone collector 14 and emptying auger 16, the cyclone collector 14
Feed end is connect with depolymerizer discharge port is crushed, and discharge end is connect with 16 feed end of emptying auger, and the emptying auger further includes
Spraying device carries out sprinkling activator for the material to entrance and is stirred.The construction of the emptying auger 16 is seen
Fig. 5 has the multi-layer oar blade that shaft and shaft drive in internal cavity, to entering the powder sprinkling activator of cavity and stir can
To effectively improve depolymerization effect, preferably achieve the effect that understand the poly- nano-powder of agglomerate.
In preferred embodiment, 14 air outlet of the cyclone collector passes through return air duct 22 and crushing depolymerizer feed end
Connection.By re-using the hot wind in device by return air duct, the reaction temperature of aggregate is first increased, it can
It is preferably reacted with activator, second can reduce energy consumption, it is cost-effective, preferably solve asking for nano-powder depolymerization
Topic.
In other preferred embodiments, 14 air outlet of the cyclone collector is connected by deduster 18 and return air duct 22
It connects.It is detached with the wind in cyclone collector into the dust of subordinate still there are many valuable ingredient, to this part, powder is received
Collection, or be sent into deduster emptying auger in activated, depolymerization can, it is various that product can be improved by above-mentioned design
Property, save overall cost.
In certain preferred embodiments, as shown in Fig. 2, the hammer disk 7 is multiple, it is coaxial on vertical direction in cylinder
Setting can improve the effect of the strike to seperated aggregate, preferably carry out powder depolymerization operation, the crushing depolymerizer charging
End further includes crushing spraying device, and the crushing spraying device, by spraying activator in advance, is enabled to for spraying activator
Activator is fully reacted by the high temperature that collision generates seperated mutually in depolymerizer is crushed, and significantly improves powder depolymerization
Efficiency.
As shown in figure 4, the feed end for crushing depolymerizer is also equipped with heating wire 23, discharge end, which is also equipped with, to be destaticed
Net 13.The effect of heating wire is supplementary heating, and the temperature for improving powder is conducive to the progress of priming reaction and depolymerization puies forward effect, goes out
Material end installation destatic net 13 can secondary agglomeration caused by minimizing electrostatic suction-operated, to reach improve depolymerization efficiency work
With.
Example the above is only the implementation of the present invention is not intended to limit the scope of patent protection of the present invention, every utilization
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations
Technical field, be included within the scope of the present invention.
Claims (8)
1. a kind of depolymerization process of nano-powder, which is characterized in that include the following steps, crushing sprinkling activation in advance in depolymerizer
Agent is introduced and is crushed in depolymerizer, the powder after depolymerization enters cyclone collector by nano-powder aggregate after stirring, heating
It is interior, activator is added to the powder being collected into, activation is stirred, obtains the nano-powder of depolymerization.
2. the depolymerization process of nano-powder according to claim 1, which is characterized in that further include step, to crushing depolymerization
Powder after machine depolymerization is destaticed.
3. the depolymerization process of nano-powder according to claim 1, which is characterized in that detach cyclone collector to next
The powder of grade is collected with dust collector, and hot wind is led back to crushing depolymerizer.
4. a kind of depolymerizer of nano-powder, which is characterized in that including crushing depolymerizer, the crushing depolymerizer includes cylinder
Body, feed inlet, hammer disk, tup and grader, the feed inlet are set to cylinder bottom side, and hammer disk is set in cylinder, the hammer
Disk can be rotated by power drive around core, and the circumference for hammering disk into shape is additionally provided with tup, include the upper hammer positioned at disk upper surface
The lower ram of head and lower surface, the grader are located at cylinder top, further include drainage wall, and the drainage wall is set in cylinder
Grader on the outside of；Grader discharge port is connect with the discharge port for crushing depolymerizer, and the feed end for crushing depolymerizer is also pacified
Equipped with heating wire, discharge end, which is also equipped with, destatics net.
5. the depolymerizer of nano-powder according to claim 4, which is characterized in that further include cyclone collector and discharging
Screw feeder, the cyclone collector feed end are connect with depolymerizer discharge port is crushed, and discharge end is connect with emptying auger feed end, institute
It further includes spraying device to state emptying auger, carries out sprinkling activator for the material to entrance and is stirred.
6. the depolymerizer of nano-powder according to claim 5, which is characterized in that the cyclone collector air outlet is logical
It crosses return air duct and is connect with depolymerizer feed end is crushed.
7. the depolymerizer of nano-powder according to claim 6, which is characterized in that the cyclone collector air outlet is logical
Deduster is crossed to connect with return air duct.
8. the depolymerizer of nano-powder according to claim 4, which is characterized in that the hammer disk is multiple, in cylinder
It is coaxially disposed on interior vertical direction, the crushing depolymerizer feed end further includes crushing spraying device, the crushing spraying device
For spraying activator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610200080.4A CN105855015B (en) | 2016-03-31 | 2016-03-31 | A kind of depolymerization process and device of nano-powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610200080.4A CN105855015B (en) | 2016-03-31 | 2016-03-31 | A kind of depolymerization process and device of nano-powder |
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| CN105855015A CN105855015A (en) | 2016-08-17 |
| CN105855015B true CN105855015B (en) | 2018-08-21 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107159388B (en) * | 2017-06-22 | 2019-03-08 | 明冠新材料股份有限公司 | The dispersal device and dispersing method of superfine powder in a kind of coating |
| CN109015326A (en) * | 2018-10-31 | 2018-12-18 | 长沙万荣粉体设备科技有限公司 | A kind of stator and depolymerizer |
| CN110961197A (en) * | 2019-12-11 | 2020-04-07 | 太原理工大学 | Efficient pitch breaker |
| CN113751178A (en) * | 2020-06-03 | 2021-12-07 | 贵州成智重工科技有限公司 | Impact dissociation sorting method and system for agglomerates |
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