CN1007127B - Method for improving quality of surface of solid particles and apparatus - Google Patents

Method for improving quality of surface of solid particles and apparatus

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Publication number
CN1007127B
CN1007127B CN 86106765 CN86106765A CN1007127B CN 1007127 B CN1007127 B CN 1007127B CN 86106765 CN86106765 CN 86106765 CN 86106765 A CN86106765 A CN 86106765A CN 1007127 B CN1007127 B CN 1007127B
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China
Prior art keywords
powder
master batch
seed
solid particle
particle
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Expired
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CN 86106765
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Chinese (zh)
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CN86106765A (en
Inventor
奈良自起
小石真纯
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Nara Machinery Co Ltd
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Nara Machinery Co Ltd
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Priority claimed from JP60223158A external-priority patent/JPS6283029A/en
Priority claimed from JP61094172A external-priority patent/JPS62250942A/en
Priority claimed from JP61140993A external-priority patent/JPS62298443A/en
Application filed by Nara Machinery Co Ltd filed Critical Nara Machinery Co Ltd
Publication of CN86106765A publication Critical patent/CN86106765A/en
Publication of CN1007127B publication Critical patent/CN1007127B/en
Expired legal-status Critical Current

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  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

A pulse arc welding machine in which current pulses are periodically applied between a welding wire and a base method. A voltage is measured between the welding wire and the base metal to determine if whether an arc to a short-circuit exists therebetween. If a short-circuit exists, a new current pulse is delayed until the arc is reestablished.

Description

Method for improving quality of surface of solid particles and apparatus
The present invention relates to a kind of method and device thereof that improves powder solid particle surface character; it is with another kind of material with the impact type crash device; for example; other solid particle or liquid; anchor on the surface as the solid particle of core; said device is equipped with an impulse chamber with the impact device that forms by the high speed rotor rotated, and said impulse chamber has a solid particle and infeeds a mouth and a self circular loop that outlet is linked to each other with the inlet of said percussion mechanism.
More particularly, the present invention relates to a kind of like this method and apparatus, it is by adhering to fine grained (being called seed later on) in advance on the surface as the particle (being called master batch later on) of core, or need not adhere to seed and seed is embedded or anchors on the master batch surface, thereby improve the surface nature of master batch with impact method.
The invention still further relates to a kind of method and apparatus that improves the master batch surface nature, its practice is that seed is sticked on the master batch surface as core in advance, or need not adhere to the method for seed and seed is anchored on the master batch surface, and and then softening and all or part of seed of fusion with impact method.
In addition, the present invention relates to the seed that metal is formed is anchored at the lip-deep method and apparatus of master batch, they or the metal seed sticked on the master batch as core in advance, or need not adhere to seed, and with ballistic method the metal seed is anchored on the master batch surface, beat out all or part of metal seed again and then with impact method.
The present invention relates to a kind of method and apparatus that improves the master batch surface nature, it is to adhere to last layer solution on the master batch surface as core, for example, (these solution are referred to as liquid to contain the water of seed or the solution of various materials, when liquid cools and when being fixed on the master batch surface, be referred to as film forming matter), and be dried or cool off, so that anchor at seed on the master batch surface or on the master batch surface, form the film of solution.
The present invention relates to a kind of method and apparatus that improves the master batch surface nature, wherein the surface of master batch has rough shape, perhaps have cave or rill, with other seed attached to or be entrained in the surface or the recess of master batch, utilize that a kind of impact method makes the projection of master batch softening, fusion and distortion, thereby seed is embedded among the master batch.
Before this, the improvement of quality of surface of solid particles, such as prevent solid particle caking, prevent color and performance change, promote dispersed, improve catalysis efficiency, digestion and absorb the improvement controlled, improve magnetic, the decay of tone, light resistance, useful or precious material or the like, be to finish with electrochemical process, Physical Absorption method, chemical absorption method, vacuum moulding machine, static adhesion method, fused mass cladding process, special spray drying process, mobile rubbing method, rolling rubbing method or the like.Particularly, using solid particle to improve the situation of quality of surface of solid particles, promptly utilize powder to improve the surface nature of powder, and in the fine particle suspension of using material or the situation that solution improves quality of surface of solid particles, certain agitating device known that typically uses various mixing types or ball milling type is its long-time stirring, for example several hours to tens hours.Utilize and stir the surface nature that the electrostatic phenomenon that causes, slow dry-out phenomenon and mechanochemistry phenomenon are improved solid particle.But, because the adhesion defective tightness of seed or film forming matter and master batch, and the power that puts on the master batch is inhomogeneous, so the film that forms is sparse.Therefore, when the powder that lives through improving processing enters subsequent processing, for example mix, mix and mediate, disperse, when becoming pastel or the like, seed comes off easily, cause the separation of component, result not only operating condition is extremely restricted, and the quality of the product of gained is very unstable.
Moreover; when in systems such as powder-powder, powder-suspension and powder-solution, using all kinds of ball mills and blender to improve the surface nature of solid particle; since seed or film forming matter to the pull-out capacity on master batch surface generally a little less than; therefore; in order to obtain desired quality of surface of solid particles; need cost several hours to tens hours, device is big and operating efficiency is extremely low simultaneously.
In addition, though once used various microencapsulations (micro capsule methods) in the situation of the controlled discharge of material, all these class methods are all wet method.Handle but follow-up process need is dry, and be of limited application, universality is poor.
A kind of method of improving quality of surface of solid particles in powder-suspension system and the powder-solution system comprises a kind of jet mill method of utilizing fluid energy, and master batch in this method is because in the fluid energy effect of the potential energy core of jet and collision each other.But owing to make seed more much better than than the effect that seed is anchored on the master batch on average with the effect that master batch breaks away from, seed is difficult to anchor on the master batch effectively.Situation with a coating solution on master batch is an example and since it be with compressed-air actuated adiabatic expansion as the fluid energy, so the power cost of producing increases, and the product quality after improving is very unstable.In addition, improve the diameter of solid particle of surface nature when big (500 microns or bigger), adopt fluid rubbing method or rolling cloth method in desire.But when particle diameter is 100 microns or more hour, particle can the conglomeration owing to be used for improving the viscosity of solution of character, thereby can not improve the surface nature of each particulate.
Therefore, one of purpose of the present invention provides a kind of method and apparatus that improves quality of surface of solid particles, has wherein overcome the above-mentioned drawback in the prior art.
Another object of the present invention provides a kind of method of improving quality of surface of solid particles, and its characteristics are to utilize impact method that another kind of material is anchored on the surface of solid particle.
More particularly, as shown in Figure 1, the invention provides a kind of method, it uses mechanical means, be aided with heat treatment in case of necessity, seed is embedded securely or anchors on the whole surface of master batch forcibly, thereby (several seconds to a few minutes) surface nature that will constitute particles of powder is improved to become evenly and stablized in a short period of time, can access functional composite material (mixing powder) thus.Main points of the present invention are to improve the method for quality of surface of solid particles, are characterized in ballistic method (first embodiment) seed being embedded or anchoring on the master batch surface.
Moreover, as shown in Figure 6, the invention provides a kind of method, it uses mechanical means, be aided with heat treatment in case of necessity, seed is embedded in forcibly or anchors on the whole surface of master batch, all or part of fusing that makes seed simultaneously is to be fixed on the master batch surface, the result in a short period of time (several seconds to a few minutes) make the improved properties that constitutes the particles of powder surface become even and stable, thereby can obtain functional composite material (mixing powder), main points of the present invention are to improve the method for quality of surface of solid particles, be characterized in seed being embedded in or anchoring on the master batch surface with ballistic method, and and then all or part of of softening and fusion seed, thereby make seed be fixed on (second embodiment) on the master batch surface.
In addition, as shown in Figure 6, the invention provides a kind of method, wherein be stamped the metal sublayer grain on the part or all of surface of master batch, utilize mechanical means, be aided with heat treatment in case of necessity, all or part of powerful hammer out with the metal seed, anchoring on the master batch surface, (several seconds to a few minutes) that the surface nature of particles of powder will be modified into will be even and stable in a short period of time for the result, thereby obtain functional composite material (mixing powder).Main points of the present invention are to improve the method for quality of surface of solid particles, are characterized in utilizing ballistic method to beat the lip-deep metal seed of master batch, thereby make the metal seed anchor at (the 3rd embodiment) on the master batch surface.
As shown in Figure 8; the invention provides a kind of method; utilize mechanical means in the method; be aided with heat treatment in case of necessity; make the embedding forcibly of seed or film forming matter, set or film forming on the part or all of surface of master batch; it is even and stable that the time interior (several seconds to a few minutes) that the result is very short will make the surface nature of powder particle be modified into, thereby obtain functional composite material (mixing powder).Main points of the present invention are to improve the method for quality of surface of solid particles; be characterized in the liquid on drying or the cooling solid particle surface, so that the film that is included in the particulate of other solid in the liquid or film forming liquid is fixed on the surface of solid particle (the 4th embodiment).
In addition, as shown in figure 12, the invention provides a kind of method, this method is with the dry type mechanical device master batch to be covered by seed, and a part that makes master batch is softening, fusion or distortion, so that seed is embedded among the master batch, the surface nature that the result makes powder particle in a short period of time (several seconds to a few minutes) improve into even and stable, thereby obtain functional composite material (mixing powder).Main points of the present invention are to improve the method for quality of surface of solid particles, be characterized in utilizing ballistic method uneven or have the recess of the solid particle of cave and rill to imbed other solid particle in surface configuration, and make that the solid master batch is softening, fusion or distortion, embed method that its plants solid particle another kind of solid particle be fixed on (the 5th embodiment) among the solid particle thereby utilize.
In addition, the present invention will provide a kind of device of realizing above-mentioned each method, and its main points are that the quality of surface of solid particles modifying device comprises impulse chamber with impact device, solid particle is added to the charge door of impulse chamber and connects the circulation canal of impulse chamber outlet and charging aperture.
The present invention will provide a kind of device that improves quality of surface of solid particles, except the said equipment, it also comprises the equipment of nozzle, firing equipment and a supplying inert gas, and this nozzle is to add the usefulness of liquid at least one place in punching press chamber, circulation canal and charge door three.
Fig. 1 (1) is to 1(8) illustrate the method according to this invention and device carry out before the improved properties with improvement after the various states of powder particle;
Fig. 2 illustrates a kind of powder percussion mechanism and the auxiliary equipment according to one embodiment of the invention;
Fig. 3 is the side view of Fig. 2 device;
Fig. 4 illustrates according to another embodiment of the present invention, the powder percussion mechanism in the situation of using inert gas;
Fig. 5 shows the surface nature stereoscan photograph of improved powder particle, and wherein Fig. 5 (1) amplifies 6000 times, and (2) amplify 20000 times, and (3) are 40000 times;
Fig. 6 (1) to (8) illustrates according to another embodiment of the present invention, the various states of powder particle before and after surface nature is improved;
Fig. 7 is the stereoscan photograph of the powder particle that improved of surface nature, and wherein Fig. 7 (1) is that static adheres to, and 10000 times, (2) are enforcement T-11, and 8500 times, (3) are enforcement T-12, and 10000 times, (4) are enforcement T-13,10000 times;
Fig. 8 (1) to (11) illustrates the various states that surface nature improved the powder particle of front and back according to yet another embodiment of the invention;
Fig. 9 is illustrated in the concrete equipment and the auxiliary equipment of powder percussion mechanism used in the embodiment of Fig. 8;
Figure 10 is the side view of Fig. 9 device;
Figure 11 illustrates according to another embodiment of the present invention, a kind of powder percussion mechanism when using inert gas;
Figure 12 (1) is to 12(4) illustrate according to the present invention another embodiment to the various states of the powder particle of surface nature before and after carrying out;
Figure 13 is the stereoscan photograph of used powder sample in the embodiment of Figure 12, wherein Figure 13 (1) represents porous nylon material (2000 times), (2) be the master batch (5000 times) that is adhering to seed, (3) be that the improved master batch of ballistic method has been used on the surface, seed embeds wherein (5000 times); With
Figure 14 be another embodiment according to the present invention with powder particle be processed into spherical before with later stereoscan photograph, the wherein powder particle of 1000 times of Figure 14 (1) and (2) expression amplifications.
First embodiment of the present invention is described now.
Can carry out surface-treated typical case master batch with method and apparatus of the present invention, diameter generally is about 0.1 micron to 100 microns, comprise pigment, for example titanium dioxide and iron oxide, synthesized polymer material, for example epoxy resin powder, nylon powder, polyethylene powder and polystyrene powder, and natural materials, for example starch, cellulose and silk powder etc.Typical seed diameter generally is about 0.01 micron to 10 microns, form by natural materials, synthetic and various synthetic dyestuff, such as colloidal silica particles, colloidal alumina particle, titanium dioxide powder, marionite powder, brown iron oxide, mica powder, Paris white and blanc fixe etc.But, two kinds of particles all are not limited to above-mentioned substance, and they also are applicable to such as chemical industry, electronics industry, magnetic industry and the compounding ingredients that relates to the various materials that use in other various industry of cosmetics, paint, printing ink, toner, colour coupler, fiber, medicine, food, rubber, plastics, pottery etc.
Usually used master batch diameter is big and hardness is little, the diameter of seed is little and hardness is big, and still, the diameter between master batch and seed can turn around according to cooperating of granular size with hardness relation, that is can be that softer seed anchors on the surface of harder master batch.
With reference now to accompanying drawing, describes one embodiment of the invention in detail.
Fig. 2 and 3 illustrations the percussion mechanism of a use impactor.Numeral 1 representative is used for realizing the housing of the powder impactor of the inventive method among the figure, the 2nd, its bonnet, the 3rd, protecgulum, the 4th, be contained in the swivel plate in the shell 1, it is with rotation at a high speed, the 5th, with the many impulse pins of arranged radially on swivel plate 4 outer rims uniformly-spaced, this impulse pin is generally plektron or template, numeral 6 is swivel plate 4 in the supporting shell 1 and the bull stick that drives its rotation, the 8th, along the collision ring of impulse pin 5 outermost orbital planes arrangement, it in the face of impulse pin 5 and with its maintenance constant distance, ring 8 adopts various irregularly shaped or the garden is all plate, the 9th, the controlled valve that is contained in the gap position of collision ring 8 is discharged the powder that is used for improving character, the 10th, the bar of valve 9, the 11st, by the transmission device of bar 10 control valves 9,13 is closed circuits, its openend is connected in somewhere on the inwall that collides ring 8, another openend links to each other to form airtight circulation with the center of swivel plate 4, the 14th, the hopper of raw material, the 15th, the slideway that hopper 14 and closed circuit 13 link to each other is so that reinforced, the 16th, the metered charge device of raw material, the 17th, raw material storage device, the 18th, by the impulse chamber that constitutes between the flap 4 outer rims 5 collision rings 8, the 19th, lead to the loop head of closed circuit 13, the 20th, discharge the slideway of the powder that has improved, 21 is cyclone separators, 22 is revolving valves, the 23rd, bag filter, the 24th, revolving valve, the 25th, air exhausting device, the 31st, time-controlling arrangement, operation in order to control apparatus of the present invention, the 32nd, a kind of known preprocessor, for example various blenders and electric mortar will be used them in the time must in advance seed being sticked on the master batch surface.
Said apparatus is used in narration now, the method for operating of said apparatus when implementing method of the present invention.
Shut valve 9, drive bull stick 6 so that swivel plate 4 rotates with the garden circular velocity of 5 meter per second to 160 meter per seconds with unillustrated drive unit, the desire of neglecting greatly of speed is improved the Substance Properties of surface nature and is decided, and if necessary, imports inert gas in device.At this moment, be arranged in the rotation of swivel plate 4 impulse pin 5 on every side, produced air and inert gas flow rapidly.Under the blasting action that the centrifugal force of air stream produces, pass closed circuit 13 from the loop head 19 of the closed circuit 13 of impulse chamber 18, in swivel plate 4, be formed centrally a recycled air stream, i.e. the air of complete self-circulation type stream.In addition, because the air capacity of circulation is much larger than the whole volume of the impulse chamber and the circulatory system, so formed powerful recycled air stream at short notice in the unit interval.
Then,, comprise and for example utilize that electrostatic phenomenon sticks to the lip-deep seed of constant basis master batch, be added to rapidly in the hopper 14 by the powder that metered charge device 16 is handled desire.When need not to use preprocessor 32, then weighing master batch and seed and be added in the hopper 14 respectively.The powder that desire is handled adds impulse chamber 18 from hopper 14 through slideway 15.The powder particle that enters impulse chamber 18 is subjected to being contained in the temporary impact with a plurality of impulse pins on the flap 4 of rotation at a high speed, and and then collide with collision ring 8, the result makes and sticks to the lip-deep seed of master batch and optionally be subjected to strong compression.The powder that desire is handled is with recycled air stream closed circuit 13 and get back to impulse chamber 18, thereby powder particle is impacted once more.
This percussion at short notice continuously repeatedly many times.Seed is embedded into or anchors at firmly on the master batch surface.These a series of blasting operations, promptly seed embeds or anchors at the lip-deep action of master batch and proceeds, and all evenly and securely is covered with seed up to whole master batch surface.Because the air that circulates in system (being air and inert gas) is more much bigger than the total measurement (volume) of the impulse chamber and the circulatory system, so the powder (master batch and seed) that the desire that circulates with air is handled is subjected to impacting many times at short notice.It is very short to handle particle surface well required time, is generally also had only several seconds to a few minutes even will include for the time of powder, though it is with once amount of powder to be processed is relevant.
Fig. 1 (1) and 1(2) illustrate a master batch a, on it because electrostatic interaction has adhered to seed b or seed b and different seed c in advance.When particle stood above-mentioned set operation, seed b embedded among the master batch a or anchors on the master batch a, as Fig. 1 (3) to 1(5) shown in; The change that seed b and c then add order along with their anchors on the master batch with the form of single or multiple lift, and its situation is shown in Fig. 1 (6) to (8).
After having finished above-mentioned set operation, valve 9 is moved among the figure position shown in the chain-dotted line discharge the powder of handling to open it.That is to say, finished powder at centrifugal force (if finished powder is subjected to centrifugal force, valve 9 can be installed in the another location) and the effect of the suction force of air exhausting device 25 under, (a few second) is from impulse chamber 18 and closed circuit 13 discharges at short notice, enter a powder collection device through slideway 20, for example cyclone separator 21 and bag hose 23.The powder that imports is collected at this place and is emitted through revolving valve 22 and 24.
After discharging the powder of handling, shut valve 9 immediately, once more the desire of constant basis is handled powder by metered charge device 16 then and be added in the impulse chamber, powder is carried out the set operation in the same way, the result one after the other makes the powder of handling.Powder set operation in the once-through operation is wherein handled the required time of powder and is determined according to the operating time of combined unit in advance by time-controlling arrangement 31 continuous controls.
If in the time of in set operation, need being aided with heat treatment (for example in the time must increasing the difference of hardness of master batch and seed), collision encircle 8 and closed circuit 13 be placed in one jacket structured in.Utilize various heating agents or cooling agent to reach and be suitable for the temperature conditions that the powder set is operated.
In powder percussion mechanism of the present invention, can on swivel plate 4, load onto auxiliary blade, or on the approach of closed circuit 13, dispose a centrifugal dull and stereotyped fan, so that increase the ability of circulating current.More particularly, if the air capacity of circulation increases, the number of times that circulates in the unit interval then increases.Because the collision frequency of powder also increases, so the required time decreased of set operation.
Describe now and use various inert gases, for example situation of nitrogen.The purpose of using inert gas be prevent powder in the set operation owing to oxidation go bad, and prevent in that to use powder percussion mechanism of the present invention to carry out in the surface improvements operation of powder or the set operation on fire and explode.
Fig. 4 represents according to the present invention to use an embodiment of inert gas in the powder percussion mechanism.In this embodiment, the parts identical with Fig. 1 and Fig. 2 still mark with identical numeral, so no longer explanation.In Fig. 4, numeral 26 expressions are contained in the reinforced valve of use below the hopper 14, and a valve that opening links to each other on 27 representatives and the slideway 15 is used for supplying with inert gas, and 28 represent the inert gas supply source, and 29 represent the passage of supply inert gases.In this embodiment, closed circuit 13 is to be contained in housing 1 the inside.
When beginning to operate, shut the valve 26 that adds raw material, open valve 9, open the valve 27 of supplying inert gas then, so in impulse chamber 18 and closed circuit 13, be full of inert gas.The operation that inert gas was full of impulse chamber and closed circuit before the set operation is finished in a few minutes usually.
After valve 9 and 27 is closed subsequently simultaneously, open valve 26 immediately, earlier measured powder is added in the impulse chamber 18 through slideway 15 thereupon.After adding powder, shut valve 26 immediately, along with closing of valve 26, metered charge device 16 measure next operation will with powder and it is added in the hopper 14.
Powder is with inert gas, and mode same in the embodiment by above-mentioned Fig. 2 is carried out blasting operation.Powder circulates in loop 13 and to keep fully contacting the while processed good with inert gas.Open valve 9 and 27 then, the powder of handling is discharged into slideway 20 from impulse chamber 18 and closed circuit 13.Meanwhile, be full of impulse chamber 18 and closed circuit 13 with new inert gas.The powder that gives off is handled by the same manner in the embodiment of Fig. 2.
Then, shut valve 9 and 27, open valve 26, beginning next round set operation.Comprise that supply and the set operation series that stops inert gas are to be controlled by the same manner of embodiment among Fig. 2 by time-controlling arrangement 31.
As mentioned above, according to the method and apparatus of improvement solid of the present invention (powder) particle surface character, it is characterized in that the powder percussion mechanism that constitutes the impact means impacts the brute force of fine particle.The impact size of utilizing difference in hardness between master batch and the seed, the whole surface of the master batch of fixed in shape being applied, and impact number of times and all can regulate.
In addition, as mentioned above, the method according to this invention and device, the seed that on the master batch surface that various materials are made, forms, can adopt the form of single sheet of getting one pack system and bi-component seed formation, the multilayer form that also can take one pack system and multicomponent seed to constitute.
The method according to this invention and device, if the ratio of the seed of set is can be so strict (promptly on each master batch, ratio of component can be constant as a whole), then needn't use the preprocessor that resembles various blenders and electric mortar and so on, master batch powder and seed powder measure respectively and directly are added in the impulse chamber, carry out the operation of set seed on master batch.
As mentioned above, method and apparatus according to improvement quality of surface of solid particles of the present invention, the master batch that is combined into by various dusty materials, its surface nature can be used on the master batch surface and to embed or firm the method that goes up seed is improved, and can make effectively in a short period of time and have evenly and the functional composite material of invariant feature and mix powder.
According to the present invention, the device that improves quality of surface of solid particles comprises very simple impulse chamber of structure and closed circuit, can take off swivel plate 4 when opening protecgulum, so that dismounting.Therefore, the maintenance of device and cleaning are easy to carry out.This device can be avoided sneaking into foreign matter when the replacement of products with new ones, and can be used for improving the surface nature of very large-scale powder material.
In addition, when using inert gas, the indifferent gas physical efficiency effectively utilizes, and it is very little that its consumption can reduce to.
Embodiment 1
Use the powder percussion mechanism among Fig. 2, comprise the eight template impulse pins that are contained on the rotation outer rim, the external diameter of device is 235 millimeters, and the diameter of closed circuit is 54.9 millimeters.Seed is the titanium dioxide of average diameter dp50=0.3 millimeter, with blender it is sticked on the master batch surface of being made up of the spherical nylon 12 of average diameter dp50=5 micron in advance, to obtain ordered mixture, under the listed treatment conditions of table 1, carry out set or fixing.The result is, titanium dioxide (seed) embeds or anchor at securely nylon 12(master batch) the surface on, thereby obtain even and stable nylon 12 powder that surface nature has been improved by titanium dioxide.
Fig. 5 shows embodiment 1(T-3 and T-4) improvement that obtains the stereoscan photograph of powder.
Table 1
Titanium dioxide is to the nylon 12(ball as core) the set condition
Implement number
T-1 T-2 T-3 T-4
The revolution of swivel plate (rev/min) 9,385 9,385 9,385 6540
Impulse pin garden circular velocity (meter per second) 115.5 115.5 115.5 80.5
Air circulation (rice 3/ minute) 3.3 3.3 3.3 2.3
Cycle-index 1,158 1,158 3,474 2418
Add powder amount (gram) 70 35 35 35
Processing time (branch) 2266
Powder temperature (℃) 120 80 112 68
Quality judging carefully
(notes) above-mentioned cycle-index is to be calculated according to the air circulation that records by the volume of impulse chamber and closed circuit.
Narrate second embodiment of the present invention now.
Use the various powder described in first embodiment as typical master batch powder.In general, the diameter of typical seed powder is from about 0.01 micron to 10 microns, comprise nylon powder, polyethylene powder, acrylic resin powder, polystyrene powder, polypropylene powder, ABS powder (acronitrile-butadiene-styrene), polyvinyl alcohol, gelatin, various wax, sulphur and organic matter, inorganic matter and metal, for example low-melting alloy.But they are not limited to these materials, and its situation is the same with first embodiment.The cooperation of diameter dimension and hardness level also with first embodiment in identical.
Percussion mechanism uses the impactor same with first embodiment that is shown in Fig. 2 to Fig. 4, operates by identical mode.
Repeat repeatedly blasting operation at short notice continuously, seed embeds or anchors at securely on the master batch surface.In addition, seed is because of absorbing heat energy deliquescing and the fusing at short notice that blasting operation produces, and is fixed on a lip-deep seed of master batch and melts whole or in part and be coupled to each other thereby make.This blasting operation series, i.e. softening, the fusion of seed and the set operation of master batch is continued to whole master batch surface become desired molten and connection state.
Model is shown in Fig. 6.Master batch and seed among the figure are not limited to spheroid.Fig. 6 (1) and (2) expression grains (b and b ') stick on the master batch (a and a ') in advance because of static.The operation that experiences a shock of master batch and seed, the surperficial deliquescing of seed and fusing, as Fig. 6 (3) to 6(5) shown in.Connection or combination between the seed have taken place on part or whole master batch surface, thereby seed is fixed on the master batch surface.In addition, shown in Fig. 6 (6) to (8), mutually different seed (b, c) form with single or multiple lift anchors on the master batch a, and this depends on the combination of different seeds and the adding order of seed.
As shown in Figure 6; the method according to this invention; seed is anchored on the master batch surface of various materials formations; can take the form of the individual particle layer that one pack system seed or bi-component seed form, cover with the carrier of seed film that master batch forms the form of micro-capsule and the form of the multilayer be made up of one pack system or multicomponent seed.Seed can be such as shapes such as sphere, irregular shape, fiber shapes.
The surface of master batch is not limited to smooth surface, can be the Any shape that concavo-convex position, cave or the rill of all size are for example arranged.
Be aided with under the situations such as heat treatment or use inert gas, can carry out the set operation by the same manner of first embodiment.
Embodiment 2
Use same device among the embodiment 1.Utilize blender that polymethyl methacrylate (PMMA) seed of average diameter dp50=0.3 micron is sticked on nylon 12 master batches of average diameter dp50=5 micron in advance, form ordered mixture, under the listed processing conditions of table 2, it is comprised the set operation of softening and melting operation.The result embeds the polymethyl methacrylate seed or anchors at securely on nylon 12 master batches that constitute core, makes part or all deliquescing and the fusing of seed, so seed anchors on the master batch surface.Improved into even and stable nylon 12 powder with regard to having obtained the surface by polymethyl methacrylate like this.Softening and the fusion carrier of seed present evident difference (referring to the stereoscan photograph of Fig. 7) with operating condition.If expect the master batch (referring to Fig. 7 (2)) of micro-capsule form, then can be undertaken by the condition of T-11.
Table 2
Polymethyl methacrylate is at the nylon 12(ball as core)
On softening, fusion and set condition
Implement number
T-11 T-12 T-13
The revolution of swivel plate (rev/min) 9,385 6,540 6540
Impulse pin garden circular velocity (meter per second) 115.5 80.5 80.5
Air circulation (cubic meter/minute) 3.3 2.3 2.3
Cycle-index 1,158 806 2418
Add powder amount (gram) 35 35 35
Processing time (branch) 226
Powder temperature (℃) 84 56 65
The complete puddle fusion of quality judging
(notes) above-mentioned cycle-index is to come out according to the volume calculations of impulse chamber and closed circuit according to air circulation.
Fig. 7 is the stereoscan photograph of powder of the improved of embodiment 2 gained.
Fig. 7 (1) expression sticks to the seed on the master batch, and Fig. 7 (2), (3) and (4) are illustrated respectively in the particle of improved under the condition of enforcement T-11, T-12 and T-13.
The 3rd embodiment of the present invention is described now.
In general, the diameter of the handled typical master batch powder of method of the present invention is about 0.1 micron to 100 microns, comprise: inorganic matter, such as calcium carbonate, kaolin, aluminium oxide, silica, glass marble and titanium dioxide, metallide, for example copper, aluminium, zinc, tin and iron, the organic polymer compound is epoxy resin powder, nylon powder, polyethylene powder and polystyrene powder for example, and natural organic matter, for example starch, cellulose and silk powder.In addition, typical metal seed powder (comprising aciculiform and linear particle) diameter is generally about 0.01 micron to 10 microns, comprise: the fine grained powder of gold, silver, copper, zinc, tin, iron, lead, stainless steel, nickel, aluminium, titanium and cadmium, and their mealy oxide or compound.But, two kinds of particles all are not limited to above-mentioned substance, and they also are applicable to such as chemical industry, electronics industry, magnetic industry with relate to the compounding ingredients of employed various materials in other various industry of cosmetics, paint, printing ink, toner, colour former, fiber, medicine, food, rubber, plastics, pottery etc.
Normally used master batch diameter is big and the seed diameter is little, but the diameter Relationship between master batch and seed also can reverse.This is decided by the cooperation of particulate inert.
Impactor same in first embodiment shown in use and Fig. 2 to 4 carries out shock treatment, and operating procedure is identical.In addition, sometimes with low amounts of water or as the material of adhesive, for example various organic solvents stick on the master batch surface seed.
Repeat repeatedly blasting operation at short notice continuously, the metal seed is beaten consumingly on the master batch surface, and then the metal seed is just anchored on the master batch surface securely in very short time owing to absorb the heat energy of blasting operation generation.These a series of blasting operations, promptly the metal seed is in the lip-deep hammering of master batch and set operation, always continuously to master batch surface local ground or entirely reach desired hammer out and set state.Because the gas that circulates in system (containing air and inert gas) amount is more much bigger than whole volumes of the impulse chamber and the circulatory system, the particle that circulates with gas in the system (being master batch and seed) was subjected to impacting many times in very short time.Included even will add the time of desiring processing powder, beaing with the set operation also only needs several seconds utmost point short time to a few minutes, though this is with once powder amount to be processed is relevant.
Utilize the figure of second embodiment to be described.As Fig. 6 (1) with 6(2), metallic particles (b, b ') is sticked on the master batch in advance by static or a small amount of adhesive.Master batch and seed experience a shock operation so that beat out the surface of metal seed resembling shown in Fig. 6 (3) to (5), and the metal seed is partly or entirely by this bonding or overlapping and be fixed on the master batch surface as a result.In addition, (b c) can beat out and be fixed on the master batch surface mutually different metal seed with the individual layer or the form of multilayer, and this depends on combination and its adding order of various metal seeds.
In addition, be aided with under the situations such as heat treatment or use inert gas, then can operate by the same manner of previous embodiments.
As mentioned above, on solid particles surface, beat the also method of set metallic particles according to the present invention, it is characterized in that, at fine particle owing to constitute the intense impact of the powder impactor of percussion mechanism and be dispersed in fully in the device under the airborne situation, impact strength that puts on metallic particles and time adjustable joint of number average, these metallic particles are to stick on the whole surface of master batch of fixed in shape.Because can suitable to each fine particle simultaneously impact, prevent fully that again diameter from being that each fine particle micron-sized, that have tendency adhered to one another is adhering to each other simultaneously, therefore can make the performance homogeneous at short notice.Improvement powder with the exclusive uniformity of metal and beautiful color and brightness.
As mentioned above, the method according to this invention, the metal seed is beaten out and is anchored on the master batch of various materials, it can be an individual layer single, two or that more metal seed component constitutes, cover the micro-capsule of master batch as film, or the various forms such as multilayer that constitute by one or more metallic particles components.Metallic particles can be an Any shape, such as sphere, irregular shape, fiber shape etc.
As mentioned above, the method according to this invention, the metal seed is beaten out and is anchored on the master batch that various dusty materials are combined into, and the surface nature of master batch improves as a result, can make the functional composite material with homogeneous and stability characteristic (quality) in a short period of time effectively or mix powder.
Embodiment 3
Use is used same sampling device in embodiment 1 and embodiment 2.
The silver powder particles that the electroconductive paints of average diameter dp50=0.5 micron to 3 micron is used sticks on spherical nylon 12 master batches of average diameter dp50=15 micron in advance, form ordered mixture, it is beaten out with set under the listed treatment conditions of table 3 operate.As a result, under any circumstance, silver powder particles (metal seed) is beaten out and is anchored on the nylon 12 master batch surfaces as core, obtains surface nature and is improved into even and stable nylon 12 powder by electroconductive paints silver powder.
Table 3
Electroconductive paints silver powder is at the nylon 12(ball as core)
On extension and set condition
Implement number
T-11 T-12
The revolution of swivel plate (rev/min) 9,385 6540
Impulse pin garden circular velocity (meter per second) 115.5 80.5
Air circulation (cubic meter/minute) 3.3 2.3
Cycle-index 1,158 806
Add powder amount (gram) 50 50
Processing time (branch) 46
Powder temperature (℃) 88 67
Quality judging carefully
Annotate: above-mentioned cycle-index is according to the air circulation that records, and is drawn by the volume calculations of impulse chamber and closed circuit.
The 4th embodiment of the present invention is described now.Typical master batch uses the various powder of being narrated in the embodiment 3.In addition, typical seed powder comprises: inorganic matter, for example calcium carbonate, kaolin, aluminium oxide and titanium dioxide, metallide, for example copper, zinc, tin and iron, organic matter, for example nylon, acrylic resin powder, polystyrene and ABS.They exist with the form of suspension, emulsion, colloidal sol or gel, and diameter is about 0.001 micron to 10 microns.The melt substance that film forming is used comprises: the liquid inorganic salts of wax, paraffin, rosin, various cellulose, oil ﹠ fat, gelatin, sugar, rubber, starch, starch inducer, silicon, titanium dioxide, copper, silver and various fusions.But they are not limited to above-mentioned substance, also are useful in such as chemical industry, electronics industry, magnetic industry and the compounding ingredients that relates to various materials used in other various industry of cosmetics, paint, printing ink, toner, colour former, fiber, medicine, food, rubber, plastics, pottery etc.
Used impactor in Fig. 9 and the 10 expression embodiments, wherein 32a, 32b and 32c represent to master batch surface feed fluid, are the used nozzle of suspension or solution, 33 represent the pipeline of feed fluid, 34 represent liquid feed pump, the 35th, liquid storage device, the 36th, Liquid valve that can the automatic or manual switch.Identical in other parts and the previous embodiments device also is marked with same numeral, so no longer mention.
In device, form the closed circuit of air stream with the mode identical with previous embodiments.
The desire of constant basis is handled powder, and promptly master batch is added to rapidly the hopper 14 from metered charge device 16.Meanwhile, or after master batch is added to hopper 14 through the set time (common several seconds to a few minutes), add solution from nozzle 32a, 32b and 32c, for example contain the short grained suspension, emulsion, colloidal sol and the gel that are used for improving surface nature, or improve the solution of the material that surface nature uses.Solution is to be added simultaneously by several nozzles 32, or one of them adds, and depends on the combination or the other factors of material.For example, the addition of solution is by decision switch time of the set pressure and the automatic valve of pump 34.The powder that desire is handled is added in the impulse chamber 18 through passage 15 by hopper 14, and the solution that is added by nozzle 32a, 32b and 32c also is added in the impulse chamber 18.Be added to powder particle in the impulse chamber 18 and solution and be subjected to being contained in the temporary impact of the multiple impulse pin 5 on the flap 4 of rotation at a high speed, and bump against with the collision ring of installing along periphery 8, the result makes the master batch surface be subjected to strong compression.Powder is got back to impulse chamber 18 with circulating current again via closed circuit 13 and is hit once more.
Continuously repeated impacts is operated suitable number of times at short notice, so solution sticks on the master batch surface equably, and absorbs the heat energy that blasting operation produces.The solution that contains seed is dry rapidly, and meanwhile, the seed of staying on the master batch sticks on the master batch securely.In similar process, the solid matter in the solution also anchors on the master batch surface.The liquid that temperature is high during charging then is cooled conversely, makes the material of molten state form film on the master batch surface.These a series of blasting operations, promptly seed is till the one-tenth membrane operations of lip-deep set operation of master batch or molten state material proceeds to whole master batch surface always and becomes desired state.Because the air that circulates in the system (air and noble gas) amount is greater than the total measurement (volume) of the impulse chamber and the circulatory system, the desire processing powder (master batch and seed or film forming matter) that circulates with gas was subjected to impacting many times in very short time.Therefore, adhere on the master batch with solution even diameter is micron order and the fine powder that tendency bonded to each other is arranged, because impact is strong and frequent, each particulate all is subjected to suitable impact simultaneously, thereby has prevented intergranular adhesion and bonding fully.This operation is promptly accused in very short time with the same manner of previous embodiments and is finished.
Model is shown in Fig. 8.Master batch and seed are not limited to sphere among the figure.Fig. 8 (1) and (2) expression seeds (b, b ') stick on the master batch (a, a ') with various solution (c), and Fig. 8 (3) expression adheres to the master batch (a ") of the solution (d) of various materials.The processing that experiences a shock of master batch, seed and solution.So, as Fig. 8 (4) to 8(7) as described in contain seed solution (c) be dried, solution (d) then is dried or cools off, the result makes seed or film anchor on the master batch securely simultaneously.Depend on the combination of each seed grain and add order, (b c) can anchor in the mode of single or multiple lift on the surface of master batch (a) mutually different seed, and ((d; f) is shown in Fig. 8 (8) to (11) for multilayer film on then can set on the surface of a ") at master batch.
Other operation can be undertaken by the same manner of previous embodiments.
Be aided with under the heat treated situation, then can operate by the same way as of previous embodiments.
Describe now and use various inert gases, for example situation of nitrogen.The purpose of using inert gas is to prevent from go bad because of oxidation in powder set operating period, and when using powder percussion mechanism of the present invention to carry out the surface improvements operation of powder, prevent on fire with explode.
Figure 11 is an embodiment of the powder impactor of inert gas used according to the invention.The parts identical with previous embodiments are marked with same numeral, here no longer explanation.
When beginning to operate, shut charging valve 26, open valve 9, the intake valve 27 of opening inert gas then makes in impulse chamber 18 and the closed circuit 13 and is full of inert gas.The operation that inert gas was full of impulse chamber and closed circuit before the set operation is generally finished in a few minutes.
Shut valve 9 and 27 subsequently simultaneously, open valve 26 immediately prior measured powder is added in the impulse chamber 18 through slideway 15, meanwhile or after a certain set time, add liquid by nozzle 32b and 32c.After adding powder, shut valve 26 immediately.Along with closing of valve 26, metered charge device 16 measures the powder of next operation usefulness, and it is added in the hopper 14.
By the same manner of previous embodiments, powder experiences a shock with inert gas and operates and the processing processing then.Final effect is basic identical.
In the method for the invention, because can impose suitable impact to each particulate, simultaneously prevent that again diameter from being that micron order and each particulate with tendency adhered to one another are adhering to each other, so can make the powder that the function with homogeneous performance has been improved at short notice.
As shown in Figure 8; the method according to this invention; seed or film forming matter anchor on the master batch surface of various materials; the form of single sheet that can take one pack system or bi-component or multicomponent seed to constitute; the micro-capsule form that the master batch tunicle covers, and the multilayer form that constitutes by one pack system or multicomponent seed or film forming matter.
As mentioned above; method and apparatus according to improvement solid particles surface performance of the present invention; seed or film forming matter anchor on the master batch that is formed by various dusty materials and liquid combination securely; thereby improved the surface nature of master batch, and can in very short time, make effectively and have evenly and the functional composite material of stability characteristic (quality) or mix powder.
Embodiment 4
Using a kind of external diameter shown in Figure 9 is 235 millimeters powder impactor, and it comprises the eight template impulse pins that are contained on the swivel plate outer rim, and the diameter of closed circuit is 54.9 millimeters.The average diameter dp50=0.3 micron of titanium dioxide seed is suspended in weight and is in the water of 1.2 times of titanium dioxide and forms suspension.This seed is anchored on the surface of spherical nylon 12 master batches that average diameter is the dp50=5 micron.At the revolution of plate is that 9385 rev/mins, the garden circular velocity of template impulse pin are 115.5 meter per seconds, 3.3 cubic metres/minute of air circulations, cycle-index 2895 times, under the set condition in 5 minutes processing times, add 35 gram powder and 19 gram suspension in four minutes after beginning off and on, make its operation that experiences a shock.The titanium dioxide seed embeds and anchors on the surface of master batch nylon 12 as a result.Like this, shown in Fig. 8 (4), obtained having been improved having evenly and nylon 12 powder of stability characteristic (quality) of surface nature by titanium dioxide.In addition, measured the water content (when the temperature of improving powder is 79 ℃) of the powder that the surface improvements of gained crosses, concluded that it is to be in the state of bone dry basically.
Embodiment 5
Using external diameter among Fig. 9 is the closed circuit that 235 millimeters powder impactor and diameter are 54.9 microns, impacts to comprise 12 plate impulse pins that are contained on the swivel plate outer rim.In order to be the cere that forms 80 ℃ of fusings on 60 to 80 microns the surface of potato starch master batch in average diameter, under following membrance casting condition, improve the operation of character; The revolution of flap is 6540 rev/mins, garden circular velocity 80.5 meter per seconds of template impulse pin, and air circulation is 2.3 cubic metres/minute, cycle-index 1209 times, 3 minutes processing times.In two minutes of beginning, add the wax of 40 gram powder (starch) and 10 gram fusings continuously, be carried out to membrane operations.The result has formed the cere of cooling on the whole surface of starch granules shown in Fig. 8 (7), thereby obtained having even and the starch bag wax micro-capsule of stability characteristic (quality).
In improving the character operation, the outer wall of impulse chamber and circulation pipe all has jacket structured, and use 14 ℃ cold water as cooling agent so that the temperature of circulating air is reduced to 65 ℃ or lower.As a result, the improved powder temperature of gained is 54 ℃.
Narrate the 5th embodiment of the present invention now.
The diameter of the typical master batch powder that can handle with method of the present invention is about 0.1 micron to 100 microns, its surface can be the Any shape that has concavo-convex position, cave and rill, it can be an organic matter, inorganic matter and metal, such as nylon powder, the polyethylene powder, acrylic resin powder, polystyrene powder, ABS powder, polypropylene powder, gelatin, various wax, sulphur, copper powder and silver powder.The diameter of typical seed powder is about 0.01 micron to 10 microns, pigment is arranged, example titanium dioxide, carbon and iron oxide, polymer substance, for example epoxy resin powder, nylon powder and acrylic resin powder, metal, for example tin, silver and copper, natural materials, for example starch, cellulose, silk powder, and pottery and various powdered flavours.But the invention is not restricted to above-mentioned substance, it also is applicable in industry such as chemistry, electronics, magnetic and relates to used various material compounding ingredients in other various industry of cosmetics, paint, printing ink, toner, colour former, fiber, medicine, food, rubber, plastics, pottery etc.
Use the impactor identical shown in Fig. 2 to Fig. 4 as percussion mechanism, press the same manner operation with previous embodiments.
Repeated impacts is operated suitable number of times continuously at short notice.The protrusion position on the surface of master batch, particularly master batch absorbs heat energy that blasting operation produces and deliquescing, fusing and distortion, and seed embeds among the master batch simultaneously.Like this, on the master batch surface, form the master batch film.A series of blasting operations proceed to the molten condition that whole master batch surface becomes hope.Even will be included the time of feeding in raw material, improve the needed time of surface nature and generally have only very short several seconds to a few minutes.
Model is shown in Figure 12.In Figure 12, a represents to have the convex-concave position or the cave is arranged and the master batch of the different shape of rill on the surface, and b represents seed.Master batch and seed that Figure 12 (1) expression does not adhere to each other, Figure 12 (2) expression has the master batch that is adhering to seed.When the master batch of adhesion seed is subjected to blasting operation, projection deliquescing, fusing or the distortion of master batch, seed then embeds among the master batch, shown in Figure 12 (3) and (4).The seed that embeds is not limited to the one pack system seed, and can contain two or more seed components.Identical in operation subsequently and the previous embodiments.
Use auxiliary heat treatment then, or use inert gas or the like, then can be undertaken by the same operation of first to the 3rd embodiment.
As mentioned above, according to the method for improving the solid powder particle surface nature of the present invention, it is characterized in that the powder impactor that constitutes percussion mechanism impacts the brute force of fine particle, and the surface configuration of considering master batch, utilize to impact seed is embedded among the master batch.
Embodiment 6
Using external diameter among Fig. 2 is the closed circuit that 235 millimeters impactor and diameter are 54.9 millimeters, and eight template impulse pins that are contained on the swivel plate outer rim are arranged in the impactor.Utilize blender that the acetylene black seed of average diameter dp50=0.03 micron is mixed mutually and sticked on the master batch with porous nylon 6 master batches of average diameter dp50=19 micron.Particle adhered to one another is 6540 rev/mins at revolution, advances under powder amount 120 grams, the condition in 2 minutes processing times and handled by percussion mechanism.
What obtain is that acetylene black (seed) embeds nylon particle (master batch), and the powder that the surface nature that the seed surface is covered by nylon 6 has been improved.
Figure 13 is the stereoscan photograph of used powder sample in the embodiment, and wherein Figure 13 (1) is a porous, and Figure 13 (2) is adhering to seed, and Figure 13 (3) is the master batch that has embedded seed.
As mentioned above, carried out the operation of improvement surface nature according to the method for improvement quality of surface of solid particles of the present invention, the surface configuration of wherein utilizing master batch embeds seed among the master batch that various powdered rubbers are combined into, and the result has obtained having in the very short time evenly and the functional composite material of stability characteristic (quality) or mix powder effectively.
The method of solid particle being carried out spheroidising with device of the present invention is described now.
In the past, the nodularization of fine powder was in order to prevent the solid particle conglomeration and to improve decentralization with mobile.This operation practice is material to be dropped in the agitating device of various blenders and ball milling type long-time (normally several hours to tens hours) stir, and material is subjected to by the frictional force and the compression stress of stirring.
But, need spend several hours to tens hours for obtaining desired spheric granules, so plant bulk is very big.In addition, the frictional force of stirring generation is regardless of with compression stress and is applied to distinctively on the different particulate of diameter.Therefore, the particle of most of desire nodularization is broken or become plate shaped, has reduced quality and operating efficiency.
The present embodiment provides a kind of method, it utilizes the mechanical shock method, be aided with heat treatment in case of necessity, can be in the very short time with Figure 14 in diameter and the different solid particle shown in the photo (1) become the spheric granules shown in the photo among Figure 14 (2) with even garden degree.Its main points are, utilize the method for percussion mechanism with irregular solid fine grain (powder) spheroidization.
The typical diameter of desiring the spheroidization powder is about 0.1 micron to 100 microns, comprise: organic matter, for example epoxy resin powder, nylon powder, polyethylene powder, polystyrene powder, cellulose powder and silk powder, inorganic matter and metal, for example titanium dioxide, graphite, zinc powder, nickel, copper, lead and iron.But, said powder is not limited to above-mentioned substance, and it also is applicable to such as chemical industry, electronics industry, magnetic industry and the compounding ingredients that relates to the various materials that use in other various industry of cosmetics, paint, printing ink, toner, quality material, fiber, medicine, food, rubber, plastics, pottery etc.
As described above described in the embodiment, when constituting core with various materials, and the characteristic particulate different with core granule anchors on the core granule or on core granule during film forming, that is when the operation that improves surface nature, if the out-of-shape of core substance (its diameter heterogeneity usually), then can when finishing surface nature improvement operation, carry out spheroidising.
Use this device, the raw material of desiring nodularization be added in the hopper 14, carry out with previous embodiments in same operation.
Repeated impacts is operated suitable number of times continuously at short notice, and irregular powder particle is by nodularization.This blasting operation series, i.e. spheroidising, the whole surface that always proceeds to fine silt all becomes even ball or spherical in shape basically.According to the mode identical, can finish spheroidising in a short period of time with previous embodiments.
Be aided with situations such as heat treatment or use inert gas, can be undertaken by the same operation of previous embodiments.
Embodiment 7
Use identical powder impactor among the embodiment 6, be that the irregular polystyrene resin (Figure 14 (1)) of dp50=15 micron carries out spheroidising to average diameter under the listed processing conditions of table 4, the result obtains the spherical powder particle with even garden degree shown in Figure 14 (2).
Table 4
The spheroidising condition of irregular polystyrene resin powder
Implement number
T-31 T-32 T-33
The swivel plate revolution (rev/min) 9,385 9,385 6540
Impulse pin garden circular velocity (meter per second) 115.5 115.5 80.5
Air circulation (cubic meter/minute) 3.3 3.3 2.3
Cycle-index 1,158 1,158 2418
Add powder amount (gram) 100 65 100
Processing time (branch) 226
Powder temperature (℃) 70 62 68
Quality judging well carefully
Annotate: above-mentioned cycle-index is according to the air circulation that records, by the volume determination of impulse chamber and closed circuit.
Figure 14 is the stereoscan photograph that powder particle carries out the spheroidising front and back under the condition of embodiment 7 (T-33).
As mentioned above, according to the present invention, utilize the powder impactor that constitutes percussion mechanism that the brute force of particulate is impacted, fine particle is dispersed in the intrasystem air fully, and the whole lip-deep impact strength that is applied to the powder of different-diameter and shape can suitably be regulated with time number average.
Therefore, owing to can impose suitable impact, prevent that diameter is adhered to one another at micron-sized each fine particle with tendency bonded to each other simultaneously again, just can make spheric granules at short notice effectively with even garden degree to each fine particle.

Claims (11)

1, a kind of improvement solid particles surface method for quality, it is characterized in that making a swivel plate that has many impact pins in the garden on week with (as 50-160m/s garden circular velocity) rotation at a high speed, the rotation of said swivel plate forms an air stream, said air stream makes one group of solid particle be recycled near the said self circular loop of perforate said swivel plate center from the said impact loop section around being contained in said swivel plate, so that be formed on the closed circuit of said air stream of the time of a weak point interior high-frequency ground circulation and solid particle, can provide high-frequency percussion power by solid particles thus, simultaneously, together produce heat energy in such a way with said impulsive force, can in several seconds to a few minutes, make by the molecular material of forming for the 10-0.01 micron particles less than the particle mean size of the granularity of said solid particle to anchor on the surface of said solid particle that particle mean size is the 100-0.1 micron.
2, method according to claim 1 is characterized in that, with ballistic method another kind of solid particle in embedding or set on the described solid particle, it is bonded on the described solid particle.
3, method according to claim 1 is characterized in that, makes another kind of solid particle deliquescing and fusing with ballistic method, thereby anchors on the described solid particles surface.
4, method according to claim 1 is characterized in that beating out another kind of metal solid particle with ballistic method, and it is anchored on the described solid particles surface.
5, method according to claim 1 is characterized in that with ballistic method drying or cooling liquid, and film that is included in the another kind of solid fine grain in the liquid or the film that forms the material of liquid are anchored on the surface of described solid particle.
6, a kind of method of improving quality of surface of solid particles, the surface that it is characterized in that described solid particle has different shape, comprise concavo-convex position, cave or rill, utilize to impact make that this solid particle is softening, fusion and distortion, thereby the another kind of solid particle that will imbed this solid recess encases and is fixed in wherein.
7, method according to claim 1 is characterized in that another kind of material sticks on the described solid particles surface in advance.
8, method according to claim 5 is characterized in that adding described liquid when described solid particle being applied impact, thereby this liquid is sticked on the solid particle.
9, method according to claim 5 is characterized in that described liquid is to contain the solution of solid fine grain or the solution of various materials.
10, a kind of device that is used for improving the solid particles surface quality by complete intermittent operation, it is characterized in that said device is by forming with the lower part: a rotating disc with the rotation of the high garden of 50-160m/s circular velocity, many impact pins that radially are installed on the said rotating disc neighboring, an impact ring of installing along the outermost swing-around trajectory face of said impulse pin circlewise, this ring has the predetermined space that is formed by said orbital plane, an impulse chamber of between the neighboring of said rotating disc and said impact ring, installing, an open and close valve that is used to discharge the solid particle that improves surface quality, said open and close valve is installed in the recess office that forms in the said impact ring, because being rotated in of said rotating disc produces an air stream in the said impulse chamber, with a self circular loop that is used for flowing the total amount solid particle that together circulates with said air, said self circular loop has an openend on said impact loop section, near the center of said rotating disc protecgulum place has another openend, to form a loop circuit.
11, device according to claim 14 is characterized in that at least one place in impulse chamber, charging aperture or closed circuit the nozzle that the liquid charging is used being housed.
CN 86106765 1985-05-07 1986-10-06 Method for improving quality of surface of solid particles and apparatus Expired CN1007127B (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP104527/1986 1985-05-07
JP223158/1985 1985-10-07
JP60223158A JPS6283029A (en) 1985-10-07 1985-10-07 Method and apparatus for surface modification of solid particle
JP280272/1985 1985-12-13
JP64317/1986 1986-03-22
JP94172/1986 1986-04-23
JP61094172A JPS62250942A (en) 1986-04-23 1986-04-23 Method for spreading and fixing metal to surface of solid particle
JP140993/1986 1986-06-17
JP61140993A JPS62298443A (en) 1986-06-17 1986-06-17 Method for reforming surface of solid particle

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CN1007127B true CN1007127B (en) 1990-03-14

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JP4512657B2 (en) * 2008-05-30 2010-07-28 シャープ株式会社 Toner manufacturing method, toner, developer, developing device, and image forming apparatus
CN102357940A (en) * 2011-06-07 2012-02-22 安徽恒森新材料有限公司 Raw material granule diameter balancing method in plate processing technology
EP3928879A1 (en) * 2016-12-27 2021-12-29 SABIC Global Technologies B.V. Drying a coating using electromagnetic radiation or heating of drum
CN107311415B (en) * 2017-07-07 2020-07-14 西安航天源动力工程有限公司 Dry-method granulating equipment for ground oil sludge
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