CN103240155A - Atomization unit - Google Patents
Atomization unit Download PDFInfo
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- CN103240155A CN103240155A CN2013100362760A CN201310036276A CN103240155A CN 103240155 A CN103240155 A CN 103240155A CN 2013100362760 A CN2013100362760 A CN 2013100362760A CN 201310036276 A CN201310036276 A CN 201310036276A CN 103240155 A CN103240155 A CN 103240155A
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- ball mill
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- aeropulverizer
- spray nozzle
- microballon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
Abstract
The present invention provides an atomization unit which can eliminate nonuniform arrangement of granularity in combination of a bead mill and a wet type jet mill and can further improve work efficiency of atomization treatment. According to the invention, in the atomization unit which is provided with the bead mill that is connected through a serial circulating loop relative to a raw material tank and the jet mill that is connected through the serial circulating loop relative to the raw material tank, the bead mill is provided with the following components: input beads, a cylindrical container which causes slurry to flow from an introducing port at one end to a discharging port at the other side, a rotating shaft which is provided with a plurality of approximately separated disc-shaped rotating blades for mixing, and a driving device of the rotating shaft. The container and the rotating shaft which is configured on the central axis of the cylinder incline for a preset angle relative to the vertical direction.
Description
Technical field
The present invention relates to the Combined Processing of being undertaken by by aeropulverizer and ball mill, carry out the micronized micro-granulating device of raw material particle.
Background technology
In the past, with various raw material particle micronize the time, by high-pressure homogenizer (for example, referring to patent documentation 1.), wet type aeropulverizer or ball mill, ball mill etc. carry out pulverizing, the dispersion treatment of raw material.
The wet type aeropulverizer is by using water-jet, raw material is pressurized to 245MPa, and from the trickle nozzle high velocity jet of bore 0.1～0.5mm, thereby utilize when spraying particle each other or to the collision of duromer, nozzle by and flow the shearing force that produces in opposite directions, also have the impulsive force that produces because of the jet flow cavitation, carry out mainly compiling the pulverizing of the offspring that forms, the device of dispersion (for example, referring to patent documentation 2,3,4 by primary particle.）。
Have again; for with raw material particle micronize to superfine such below 1 μ m footpath; employing is after the pulverizing of having been carried out raw material by wet type aeropulverizer as described above, high-pressure homogenizer etc., dispersion treatment; use ball mill, ball mill etc. are further pulverized, dispersion treatment, make atomic method.
Ball mill is that spherical microballon is put in the container, make be provided with the plane each other the rotating shaft of parallel a plurality of plectane blades in container, rotate, one side stirs microballon, one side makes device that the slurry that contains the raw material particle flows from from a distolateral slurry introducing port of container to another distolateral slurry outlet (for example, referring to patent documentation 5.）。Therefore, in container, stirring because of revolving force in the mobile slurry, raw material particle mobile between microballon is sandwiched by microballon, by its damage power by pressure, frictional force is pulverized.
But, respectively under different operation is used in the past wet type aeropulverizer and the situation of ball mill, owing in ball mill, media such as microballon are mixed into raw material stir, so, exist the disintegrating slag etc. of this medium to sneak into the possibility of material liquid as impurity.Have again, under the situation of the pulverizing of carrying out primary particle and offspring, dispersion, because the state difference of raw material, so, be necessary correspondingly to select best device with the footpath of raw material particle, hardness, surface configuration etc.And the situation of using each device to handle in different operations comprises spatial movement, and operation is numerous and diverse, and very spended time needs cooling body at each device, therefore, causes the efficient of operation own not high, and needs extra cost.
Therefore, consider to make the device of wet type aeropulverizer and compoundization of ball mill.It is by in the series circulation loop at head tank each device being set; thereby in fact roughly carry out the device of both processing simultaneously; be such not miscellaneous under the situation of different operations; cooling body also can unification, can carry out effectively and the micronized device of more uniform raw material particle (referring to citing document 6.）。In addition, because the processing of ultra micro granulation does not need to rely on the power of damaging by pressure that is produced by ball mill entirely yet, so, compare with the situation of independent use, also can suppress the necessary power of damaging by pressure, this makes the mixing of the impurity that brought by microballon also can reduce significantly.
Technical literature formerly
Patent documentation
Patent documentation 1: TOHKEMY 2003-113390 communique
Patent documentation 2: No. 3151706 communique of patent
Patent documentation 3: No. 3686528 communique of patent
Patent documentation 4: TOHKEMY 2000-33249 communique
Patent documentation 5: TOHKEMY 2000-83622 communique
Patent documentation 6: TOHKEMY 2011-115729 communique
But under situation simple that existing device is connected to each other, whole apparatus structure maximizes, and has bigger dead volume in device.Especially in the container of ball mill, the existence of microballon produces local bias, is difficult to obtain the uniform size distribution of pulverized raw material.And, when carrying out continuous processing, be necessary to make device to turn round for a long time, if between container and drive system, produce breakage at the liquid sealing with rotating shaft, the sealing of bearing periphery, then exist slurry to flow into this damaged sealing, cause sneaking into the possibility of impurity.
In the micro-granulating device based on compoundization of aeropulverizer and ball mill, requirement can be carried out high-precision micronize in the short time and handles, and has the disposal ability of uniform size distribution.In addition, realizing on the basis that more effective micronize is handled, also wishing to make necessary component part long lifetime.
The objective of the invention is to use for reference the problems referred to above point, provide a kind of and can in compoundization of wet type aeropulverizer and ball mill, can eliminate the inhomogeneous of size distribution, and improve the micro-granulating device of the operating efficiency of micronize processing.In addition, the present invention reduces dead volume with in the miniaturization of seeking device, not only makes the component part long lifetime of ball mill, and also reducing impurity is purpose.
Summary of the invention
To achieve these goals; the micro-granulating device of the invention of relevant technologies scheme 1 record is to possess head tank that the slurry that contains the raw material particle is accommodated, connect by the series circulation loop with respect to this head tank; in slurry, sandwich raw material particle and the ball mill of pulverizing, connect by the series circulation loop with respect to described head tank by the microballon that has been applied in revolving force; micro-granulating device by the aeropulverizer of the pressurized high-pressure slurry of spray nozzle device high velocity jet; wherein
Described aeropulverizer has the more than one spray nozzle device of the described high-pressure slurry of high velocity jet and forms the chamber of spraying the micronize space of slurry from this spray nozzle device,
Described ball mill has described microballon input, and make container that slurry flows from from a distolateral introducing port to another distolateral outlet, mutually across being interval with rotating shaft for a plurality of roughly discoid rotating vanes that in container, microballon and slurry stirred, making the drive unit of this rotating shaft rotation, described container has drum, described rotating shaft on the central shaft that is configured in this cylinder tilts with predetermined angle with respect to vertical direction.
The micro-granulating device of the invention of relevant technologies scheme 2 records is that the container of described ball mill has the micro-granulating device that has been endowed compression stress and has implemented the accurately machined internal face of minute surface in the micro-granulating device of technical scheme 1 record.
The micro-granulating device of the invention of relevant technologies scheme 3 record is the micro-granulating device that the rotating shaft of described ball mill is provided with the ceramic cladding parts of covering surfaces in the micro-granulating devices of technical scheme 1 or 2 records.
In the micro-granulating device of each record of micro-granulating device in technical scheme 1～3 of the invention of relevant technologies scheme 4 record, it is the micro-granulating device that the drive unit of described ball mill possesses self-cooling body.
In the micro-granulating device of each record of micro-granulating device in technical scheme 1～4 of the invention of relevant technologies scheme 5 records, be that the spray nozzle device of described aeropulverizer possesses the micro-granulating device that is attached at coaxial plural throttle nozzle.
The micro-granulating device of the invention of relevant technologies scheme 6 record is the spray nozzle device of described aeropulverizer has wide diameter portion in each downstream of the described throttle nozzle that links more than two micro-granulating device in the micro-granulating device of technical scheme 5 records.
In the micro-granulating device of each record of micro-granulating device in technical scheme 1～6 of the invention of relevant technologies scheme 7 records; be to it is characterized in that described aeropulverizer possesses mutually a pair of spray nozzle device of configuration in opposite directions, make the jet micro-granulating device that collides each other from each spray nozzle device high velocity jet.
In the micro-granulating device of each record of micro-granulating device in technical scheme 1～6 of the invention of relevant technologies scheme 8 records; be to it is characterized in that described aeropulverizer possesses to be configured in the described chamber, and make from the micro-granulating device of the duromer of the jet collision of spray nozzle device high velocity jet.
The invention effect
Because micro-granulating device of the present invention can be by making ball mill container with rotating shaft; become heeling condition with respect to vertical direction, carry out the high stirring of precision, can access the uniform size distribution of pulverized raw material; so, can seek to improve the micronize performance as a whole.In addition, in micro-granulating device of the present invention, by the miniaturization of ball mill and the reduction of dead volume, can further improve the micronize treatment effeciency.Have again; in micro-granulating device of the present invention; be not limited to only be constituted by a throttle nozzle spray nozzle device of aeropulverizer; also can adopt on coaxial and further link throttle nozzle; throttle nozzle is increased to the spray nozzle device that forms more than two; can improve shearing force, the micronize performance of seeking device integral body further improves.
Description of drawings
Fig. 1 is that expression is based on the key diagram of the loop structure integral body of the micro-granulating device of one embodiment of the invention.
Fig. 2 is the three local mode figure that connect throttle nozzles that the spray nozzle device of aeropulverizer of the micro-granulating device of presentation graphs 1 possesses.
Fig. 3 is the schematic configuration diagram of ball mill of the micro-granulating device of Fig. 1.
Fig. 4 is with 2-a(bead diameter 0.5mm by experiment) in Combined Processing and the intermediate value footpath of micronized raw material particle is compared with the situation of the independent processing of individual device, the line chart of representing by each number of processes.
Fig. 5 is with 2-b(bead diameter 1.0mm by experiment) in Combined Processing and the intermediate value footpath of micronized raw material particle is compared with the situation of the independent processing of individual device, the line chart of representing by each each number of processes.
Fig. 6 is the Combined Processing of microballon that the use diameter among the 2-c by experiment is the different and intermediate value of micronized raw material particle directly compares, the line chart of representing by each each number of processes.
Fig. 7 is with the Combined Processing among the 2-d by experiment and the line chart that the intermediate value footpath of micronized raw material particle is represented by each number of processes.
Fig. 8 is with the Combined Processing among the 2-e by experiment and the line chart that the intermediate value footpath of micronized raw material particle is represented by each number of processes.
Fig. 9 is the schematic configuration diagram of a pair of spray nozzle device part of the expression jet each other collision type different with the aeropulverizer of the micro-granulating device of Fig. 1.
Figure 10 is the schematic configuration diagram that the expression duromer different with the aeropulverizer of the micro-granulating device of Fig. 1 collides the spray nozzle device part of type.
Figure 11 is for example expression based on the key diagram of the micro-granulating device of the loop structure different with Fig. 1 of the present invention.
The specific embodiment
In micro-granulating device of the present invention; because aeropulverizer and ball mill are with respect to the same head tank that the slurry that contains the raw material particle is accommodated; connected by the series circulation loop respectively; so the raw material particle can be subjected to because of shearing force that the spray nozzle device high velocity jet from aeropulverizer produces, impulsive force, because of the power of damaging by pressure and the so different processing effect of frictional force that produces that sandwich of the microballon of ball mill continuously in the short time.Namely, can roughly act on the different types of stress big to the particle destroying infection on raw material particle plyability ground simultaneously; be subjected to suitable with " alternate stress " in fact effect; by the one side in the series circulation circuit cycle; one side is carried out this compound processing repeatedly, can access the micronize performance than the repeated treatments excellence in single treating apparatus.
In addition, by compoundization of such aeropulverizer and ball mill, can make the cooling body unification that individually needs, can save unnecessary cooling energy, seek laborsavingization.And, in the present invention, be not to be that existing aeropulverizer and ball mill are merely linked, but one side improve the micronize performance separately of aeropulverizer and ball mill, one side adapts to compoundization, seeks the invention that compound micronize performance further improves.
Namely, at first, in ball mill of the present invention, to drop into microballon, and make the container that the slurry one side flows from a distolateral introducing port to another distolateral outlet make drum, mutually across being interval with the cylinder center's axle that is configured in container for the rotating shaft at a plurality of roughly discoid rotating vanes of container for stirring microballon and slurry, but, these containers and rotating shaft are all tilted at a predetermined angle with respect to vertical direction.
Therefore, in the ball mill that rotating shaft is arranged along vertical direction, the raw material particle is trapped in the below of container easily, the existence of microballon also is easy to generate local bias, but, as above-mentioned in the container that rotating shaft tilts, raw material particle and microballon are stirred more equably, the power of damaging by pressure that produces because of sandwiching of microballon also plays a role, and can access the uniform size distribution of pulverized raw material.And, owing to making container cylindraceous by suitably setting its bore, container contents can be amassed and be suppressed at necessary irreducible minimum, significantly reduce dead volume, so, can also seek the miniaturization of device, make the raising significantly compared with the past of micronize disposal ability.
In addition, owing to by the internal face of container being given compression stress and being implemented minute surface fine finishining, reduce the friction of slurry and internal face, so, can stir more equably.And the generation of the fragment in the time of can expecting to suppress microballon contact wall reduces the effect of sneaking into impurity.
In addition, though itself having under the situation of higher hardness as the raw material particle of pulverizing object, exist the surface of rotating shaft by scraping, the possibility that chip is sneaked into as impurity, but, by cover the surface of rotating shaft with ceramic cladding parts, can suppress the generation of impurity.
Have again, if as the drive unit that makes rotating shaft rotation, make the drive unit that possesses self-cooling body, can prevent then that heating because of drive unit from producing to and container between the heating of liquid sealing.Accordingly; can suppress Yin Gaowen rise deterioration, the inflow of slurry from the deterioration position to drive system of the seal member cause; the good sealing state that long term maintenance is brought by the long lifetime of seal member, and can also avoid part replacement frequently in continuous micronize treatment process.
As the drive unit that possesses so self-cooling body, for easy, wish to adopt air motor.Air motor generally is by compressed-air actuated supply, exhaust, makes the motor of rotor rotation, still, and the exhaust cooling that motor itself is inflated.In addition, in environment with an organic solvent, can also expect explosion-proof effect.
On the other hand, aeropulverizer of the present invention be from more than one spray nozzle device to the chamber that forms the micronize space in the aeropulverizer of high velocity jet high-pressure slurry.By improving the micronize performance of this aeropulverizer itself, seek the further raising of device overall performance.Therefore, be not limited to constitute spray nozzle device by single throttle nozzle, hope can be adopted the spray nozzle device that is made of the plural throttle nozzle in coaxial binding.This is because distinguished by linking with second, third throttle nozzle on first throttle nozzle coaxial, increases throttle nozzle, can improve the micronize performance of spray nozzle device.
Namely, in common micronize is handled; by carrying out repeatedly because of injection passing through at single throttle nozzle; realization is to the micronize in the particle footpath of target; but; in the spray nozzle device that a plurality of throttle nozzles are linked; pass through by once spraying, to obtain linking the suitable treatment effect of the situation of amount of number with spraying repeatedly at single throttle nozzle by it.Therefore, owing to become by possess two above narrow roads shearings in fact at a plurality of throttle nozzles of coaxial bindings and give the spray nozzle device at position, so, undertaken by spray nozzle device high-pressure slurry when spraying in the hole by the time shearing force compare with the common spray nozzle device that possesses single throttle nozzle, improved significantly.
Have again, at each throttle nozzle, by forming wide diameter portion in downstream, the disorder of flowing in this wide diameter portion can be given to shearing force as the pressure loss.In the spray nozzle device that possesses such throttle nozzle that links more than two; even only handle from the high velocity jet of the high-pressure slurry of a spray nozzle device; can obtain excellent micronize performance; but; also can further give the impulsive force that produces because of collision, obtain bigger micronize performance.
As the structure of further giving impulsive force, can list and to possess a pair of spray nozzle device configuration opposite to each other mutually of binding throttle nozzle as described above respectively, make the jet structure of colliding each other of spraying from each spray nozzle device or at the injection axis extended position configuration duromer of a spray nozzle device, make the structure of jet this duromer of collision.
In addition; in micro-granulating device of the present invention; with aeropulverizer with respect to raw material tank connected series circulation loop and with ball mill with respect to the tank connected series circulation of raw material loop also same loop not necessarily; because if head tank is identical; then in fact roughly the same time is accepted both micronize effect; so mutual loop relation is as long as correspondingly suitably select with design condition etc.
Certainly, also same loop can be made in the series circulation loop of aeropulverizer and the series circulation loop of ball mill.In this case, become the easy structure that aeropulverizer and ball mill are connected in a series circulation loop, the short time is carried out the processing undertaken by both continuously on a continuous circuit.
In addition, though all be the series circulation loop with respect to head tank, but, in the series circulation loop made from respect to a side, making the opposing party is the structure of bypass circulation, perhaps make two series circulation loops each other under the situation of structure in parallel, can set the processing flow easily in each of aeropulverizer and ball mill.
[embodiment]
As one embodiment of the invention, Fig. 1 is that the same series circulation loop at head tank is used in expression, and aeropulverizer is connected the also micro-granulating device of compoundization with ball mill at a circuit.In the aeropulverizer of present embodiment, be that expression comprises that possesses three situations of aeropulverizer that connect the spray nozzle device of throttle nozzles.
This micro-granulating device 1 mainly is that wet type aeropulverizer 4 is connected with respect to the same series circulation of head tank 2 usefulness loop with ball mill 7, is attached at a micro-granulating device on the circuit.In this loop structure, the slurry in the head tank 2 is carried to aeropulverizer 4 through solution feed pump 3, by spray nozzle device 5 high velocity jet.Slurry after the injection is imported into ball mill 7 after being cooled off by heat exchanger 6, return head tank 2 after processing.
In addition, ball mill 7 in the present embodiment is in the cylinder container 8 of drum of microballon 14 in filling, on the central shaft that is inserted into the rotating shaft 9 that driven by motor 11 rotation, cylinder container 8, and the mode that the plane is parallel to each other along the direction of principal axis of this rotating shaft 9 each other arranges a plurality of roughly discoid rotating vanes 10.Be to drive by the rotation that rotating vane 10 is accompanied by rotating shaft 9 to rotate, make microballon 14 stir the ball mill of rotation.
Therefore, if after carrying out inject process by aeropulverizer 4, the slurry that is cooled is imported in container 8 from the introducing port 12 of container lower side, then the outlet 13 to the container upper side stir, flow during, one side is sandwiched between the microballon 14 that has been endowed revolving force, one side is mobile, the power of damaging by pressure fragmentation, dispersion that the raw material particle 15 in the slurry is produced by the microballon 14 of this moment.
In the present embodiment, as shown in Figure 3, with the state setting of this container 8 to tilt with 50 degree with respect to vertical direction with rotating shaft 9.By this inclination, raw material particle 15 is difficult to be trapped in the below, also reduces the existence biasing of microballon 14, can stir equably.Therefore, the power of damaging by pressure that acts on raw material particle 15 also becomes evenly, and it is even that the size distribution of pulverized particle also becomes.In addition, the internal face of container 8 uses stainless steel SUS304, by super roller (the ス パ ロ ー Le) processing of being undertaken by Barreling tool (ロ one ラ one バ ニ シ Application グ Star one Le, the ス ギ ノ マ シ of Co., Ltd. Application system), this internal face is given compression stress and implemented minute surface fine finishining.Accordingly, owing to slurry, microballon also reduce with friction wall, so, can expect to be stirred better, and the generation of the fragment when also suppressing microballon and contacting with wall, the effect of impurity is sneaked in reduction.
In addition, the internal diameter of the container 8 by suitable setting drum can suppress vessel volume little, reduces dead volume as far as possible.Thus, in the ball mill 7 of present embodiment, the built-in amount of raw material can be suppressed at 50cc.Use zirconia ceramics at rotating vane 10 as raw material, in addition, the surface that appears of rotating shaft 9 is also covered with ceramic component, accordingly, can prevent the impurity that is constituted by the scraping chip.
Have again, by the air motor 11 of packing into as the drive unit that is used for rotating shaft 9 is rotated, can utilize the self-cooling effect of air motor, be reduced in and container 8 between the temperature of liquid sealing rise, seek the long lifetime compared with the past of seal member, and can also suppress temperature rising in the container, can help laborsavingization of the cooling energy of device integral body.
Below, be that expression uses the micro-granulating device 1 based on present embodiment to carry out the experimental result that actual micronize is repeatedly handled.
At first; only at three spray nozzle devices 5 that connect throttle nozzles 20 that possess of this micro-granulating device 1; will based on the micronize ability of its high velocity jet with make respectively possess general single throttle nozzle a pair of spray nozzle device in opposite directions, and jet situation of colliding is each other compared, and estimates.Evaluation is to carry out the granulometry of raw material particle with size distribution meter (Horiba Ltd's LA-910W type processed), directly obtains size distribution according to intermediate value.
Specifically, with respect to by bore
Three spray nozzle devices that the connect throttle nozzles high velocity jet of carrying out, at a pair of spray nozzle device that by bore is the single throttle nozzle of 0.12mm, to with the atoleine being the 10wt% slurry of raw material particle, compress into situation that row spray to collide and to being the 1wt% slurry of raw material particle with titanium oxide (the former industry of stone ST01 processed) with the injection of 200MPa, compress into row with the injection of 220MPa and spray under the collision situation, separately result is illustrated in following table 1, table 2.
[table 1]
| Atoleine (10wt%) | Be untreated | Through once | Through three times |
| Single throttle nozzle (collision) | 57.551μm | 0.629μm | 0.458μm |
| Three connect throttle nozzle | 57.551μm | 0.472μm | 0.420μm |
[table 2]
| Titanium oxide (1wt%) | Be untreated | Through once | Through three times | Through five times |
| Single throttle nozzle (collision) | 2.754μm | 2.365μm | 2.037μm | 1.770μm |
| Three connect throttle nozzle | 2.754μm | 2.242μm | 1.916μm | 1.708μm |
According to top result, according to identical number of processes relatively, under the situation of any one raw material particle, all being to use three, to connect throttle nozzles littler than the situation particle footpath of using single throttle nozzle, can confirm the raising of the shearing force that a plurality of bindings by throttle nozzle bring.In addition, in the present embodiment, represented three situations that connect throttle nozzles that three throttle nozzles are linked, still, the present invention is not limited thereto.Even two connect throttle nozzle, shearing force is also obviously than the situation height of single throttle nozzle, certainly, also can be four to connect above structure.Owing to think that connective number is more many, more improve shearing force, can also reduce the cycle-index repeatedly for the necessity that realizes identical target grain size, so, as long as suitably set according to the size design of spray nozzle device and with the corresponding desirable processing time of the raw material of reality (repeated treatments number of times).
Then; the situation that the situation that micronize ability and the micronize of carrying out only being undertaken by aeropulverizer repeatedly of carrying out repeatedly under the situation of Combined Processing of the aeropulverizer 4 of micro-granulating device 1 of Fig. 1 and ball mill 7 are handled and the micronize of carrying out only being undertaken by ball mill are repeatedly handled compares, and estimates.Evaluation method and described experiment 1 are same.As raw material, use with the 5wt% slurry of calcium carbonate as the raw material particle, the expulsion pressure that makes aeropulverizer 4 is 245MPa, be that 0.5MPa is as identical condition with making the air pressure by the generation of the air motor of ball mill 7, suitably selecting microballon 14 is diameter 0.5mm, 1.0mm, the microballon input amount bulk volume ratio long-pending with respect to container contents is corresponding 20～80% with bead diameter, and the rotating speed of rotating shaft, rotating vane is the condition of 3000rpm, 3700rpm.
Experiment 2-a
In the situation of the inject process of only carrying out repeatedly being undertaken by aeropulverizer, only carry out repeatedly damaging processing (bead diameter 0.5mm by pressure by what ball mill carried out, microballon is bulk volume ratio 60%, rotating speed 3000rpm) situation, makes under the situation that the Combined Processing of aeropulverizer and ball mill circulates repeatedly, intermediate value after each number of processes is directly compared, and its result is illustrated in the line chart of Fig. 4.According to this result, demonstrate in the processing of only being undertaken by ball mill, to compare with the processing of only being undertaken by aeropulverizer, the granularity of raw material particle is little, and the primary particle of ball mill damages the power excellence by pressure.But, in the Combined Processing of aeropulverizer and ball mill, to compare with the processing of only being undertaken by ball mill, granularity is littler, has confirmed the high micronize performance of being brought by compoundization.
Experiment 2-b
Condition with respect to above-mentioned experiment 2-a, only microballon is changed to the microballon of diameter 1mm, in the situation of the inject process of only carrying out repeatedly being undertaken by aeropulverizer, only under the situation that the situation of damaging processing by pressure of carrying out repeatedly being undertaken by ball mill, the Combined Processing that makes aeropulverizer and ball mill circulate repeatedly, intermediate value after each number of processes is directly compared, and its result is illustrated in the line chart of Fig. 5.According to this result, even changed microballon footpath, also with the coming to the same thing of experiment 2-a, by the Combined Processing of aeropulverizer and ball mill, the granularity of raw material particle has been confirmed the high micronize performance of being brought by compoundization by micronize.
Experiment 2-c
In the circulating process repeatedly of the Combined Processing by above-mentioned experiment 2-a, aeropulverizer that 2-b carries out and ball mill, make other condition identical, under the situation of the microballon that uses diameter 0.5mm and under the situation of the microballon of use 1.0mm, intermediate value after each number of processes is directly compared, and its result is illustrated in the line chart of Fig. 6.According to this result, distinguish in ball mill, be identical conditions as if the bulk volume ratio of microballon, rotating speed, then under the little situation of the diameter of employed microballon, the granularity of raw material particle is little.This opens and is illustrated in when pulverizing primary particle, though if bead diameter is little, the power of then damaging by pressure is also little,, with the touch opportunity increase of particle, crush efficiency improves.
Experiment 2-d
In the circulating process repeatedly of the Combined Processing of aeropulverizer and ball mill, bulk volume ratio and mutually different these two condition enactments of rotating speed at ball mill directly compare the intermediate value after each number of processes, and its result is illustrated in the line chart of Fig. 7.Above-mentioned two conditions are identical at bead diameter 0.5mm, and bulk volume ratio is 60%, and rotating speed is that situation and the bulk volume ratio of 3000rpm is 80%, and rotating speed is the situation of 3700rpm.According to this result, or the latter's bulk volume ratio is 80%, and rotating speed is that the situation of 3700rpm is compared with the situation of the former condition, and the granularity of raw material particle is little.Namely, distinguish in ball mill, under the situation of the microballon that uses identical footpath, increase by making bulk volume ratio, and rotating speed risen, power is increased, make that the power of damaging by pressure with respect to primary particle also increases, can be with the further micronize of raw material particle.
Experiment 2-e
In the circulating process repeatedly of the Combined Processing of aeropulverizer and ball mill, with the bulk volume ratio of the microballon input amount of integral body all unifications be 80%, and it is rotating speed is unified on the basis of 3700rpm, at using microballon only to be the situation of one kind of diameter 0.5mm (bulk volume ratio 80%), use two condition enactments of the microballon of Different Diameter with different mixed proportions, namely, diameter is 0.5mm, bulk volume ratio is 60+ diameter 1.0mm, bulk volume ratio is 20% situation, diameter is 0.5mm, bulk volume ratio is 1.0mm for the 40+ diameter, bulk volume ratio is 40% situation, intermediate value after each number of processes is directly compared, and its result is illustrated in the line chart of Fig. 8.
According to this result, with only use relative little diameter and compare as the situation of the microballon of 0.5mm, still be that the relative big microballon of 1mm mixes under the situation about using with diameter, the granularity of raw material particle is little, and this demonstrates the high impulsive force that the high crush efficiency that is brought by the path microballon has promoted big footpath microballon.Have again, mixing under the situation of using big or small microballon, still be mixed into the path microballon than the situation that greatly directly microballon is Duoed under, the granularity of ratio situation raw material particle in contrast is little, this result with experiment 2-c is same, effectively is cause with the height of the crush efficiency of path microballon when pulverizing primary particle.
Then, the mixed volume from the impurity of ball mill parts (SUS) and microballon composition of detection assay behind the circulating process repeatedly of the Combined Processing of being undertaken by this micro-granulating device 1 compared with untreated situation, estimates.The detected object thing is Fe, Cr, Zr, measures and uses inductively coupled plasma ICP Atomic Emission Spectrophotometer device (Shimadzu Seisakusho Ltd.'s system, ICPS-7510 type).In addition, with regard to ball mill 7, the situation that the raw material that makes container inner wall is respectively three kinds of SUS304, zirconia, the super roller product of SUS304 is studied.In addition, rotating vane 10 is zirconia system, and microballon is zirconia system, and diameter is 0.5mm, and bulk volume ratio is 60%, and making rotating speed is 3000rpm, and it is that 245MPa is as identical condition that the injection of aeropulverizer 4 is pressed.In addition, super roller product refer to container inner wall face SUS304 is carried out being processed by the super roller that Barreling tool (the ス ギ ノ マ シ of Co., Ltd. Application system) carries out, and described internal face is given compression stress and implemented the accurately machined goods of minute surface.At above each condition, measure and to use with the 5wt% slurry of calcium carbonate as the raw material particle, carried out impure and mixed volume after the circulating repeatedly of 100 described Combined Processing.The result is illustrated in following table 3.
[table 3]
| Treatment conditions (container inner wall) | Fe（ppm） | Cr（ppm） | Zr（ppm） | Through the footpath of the intermediate value after 100 |
| 1. be untreated | 6 *1 | - *2 | - | （2.935μm） |
| 2.SUS304 | 11 | - | - | 0.575 |
| 3. zirconia | 8 | - | 6 | 0.568μm |
| 4.SUS304 super roller product | 7 | - | - | 0.557μm |
* 1: the calcium carbonate sample has contained the Fe composition in the untreated moment.
* 2:-represents to detect boundary following (1ppm is following).
If be benchmark with untreated various amounts, then the ball mill container inner wall in condition 2 is under the situation of SUS304, and the mixed volume of Fe increases, and is under the zirconic situation at the ball mill container inner wall of condition 3, though the mixed volume of Fe is increased in error range, the mixed volume of Zr increases.But, be under the situation of super roller product of SUS304 at the ball mill inwall of condition 4, Fe is increased in error range, and the mixed volume of Zr is detecting below the boundary.
According to The above results, by the internal face of ball mill container being given compression stress and being implemented minute surface fine finishining, suppress to contact with wall because of microballon the generation of the fragment that causes, this part has inhibition from the effect of sneaking into of the impurity of this microballon.In addition, in the ball mill of present embodiment, making inside diameter of vessel is about 30mm, compare with ball mill in the past, miniaturization significantly, in above-mentioned experiment 3, the play of this container inner wall and rotating vane periphery is about 6 times of bead diameter, and these conditions also are believed to be helpful in the effect of the generation increase that suppresses Fe impurity.
In addition; in above-mentioned experiment 2-a only based on the situation of the inject process of aeropulverizer; experimentize among the 2-e (bulk volume ratio is 80% at the microballon that uses a kind of diameter 0.5mm; rotating speed is 3700rpm) and mix to use the situation of the circulating process repeatedly of the Combined Processing under diameter 0.5mm microballon (bulk volume ratio 60%) and these two conditions of diameter 1.0mm microballon (bulk volume ratio 20%) (rotating speed 3700rpm); at whole three conditions (all being that aeropulverizer injection pressure is similarly 245MPa); standard deviation according to the inhomogeneity yardstick of representing size distribution; evaluation is as the micronize result of the calcium carbonate of raw material particle, and its result is illustrated in following table 4.
[table 4]
According to the result of table 4, confirmed to access the meticulousst size distribution mixing under the situation of using the different big or small microballon of diameter.
Then, the micronize performance of Combined Processing that will possess this micro-granulating device 1 of the ball mill 7 by the condition 4 shown in the above-mentioned experiment 3 is compared with the situation of the ball mill of type in the past, estimates.Namely, the container of type in the past that the internal volume that is inserted into along vertical direction with respect in the past rotating shaft is big, find out and suppress internal volume little, and the difference of the ball mill 7 of the present embodiment that is obliquely installed.Specifically, internal diameter with respect to the container 8 of the ball mill 7 of the present embodiment that makes angle of inclination shown in Figure 3 50 degree is 30mm, possess internal diameter and be 134mm using, and under the situation of the ball mill of the container of type in the past that does not tilt, repeatedly the Combined Processing of 10 calcium carbonate.In addition, in the ball mill 7 of present embodiment, mix and use diameter 0.5mm microballon (bulk volume ratio 60%) and diameter 1.0mm microballon (bulk volume ratio 20%) (rotating speed 3700rpm), in the ball mill of type container in the past, the single kind used diameter 2.0mm microballon (bulk volume ratio 50%), all is that the condition (spray and press 245MPa) of aeropulverizer 4 is identical.Intermediate value to particle after both processing directly compares, and its result is illustrated in following table 5 with impurity amount (measure and undertaken by inductively coupled plasma ICP Atomic Emission Spectrophotometer device (Shimadzu Seisakusho Ltd.'s system, ICPS-7510 type)).
[table 5]
* :-be illustrated in and detect boundary following (1ppm is following).
According to above-mentioned result, confirm to compare micronize performance height based on the ball mill 7 of present embodiment with the ball mill of the container of type in the past.This is because the ball mill 7 of present embodiment is compared with type in the past, because dead volume reduces, and is obliquely installed the raising of the stirring efficiency that brings, makes micronize efficient improve.Distinguish it only is the improvement of such ball mill, the performance that just can seek micro-granulating device 1 improves.Therefore, in compoundization of described aeropulverizer and ball mill, by the complementary effect that both are modified respectively, can be implemented in the micro-granulating device integral body of the present invention and significantly improve the micronize performance.
In addition; in the above embodiments; aeropulverizer as micro-granulating device 1; represented only to carry out from the aeropulverizer of the inject process of an air jet system 5; but; possesses the spray nozzle device in the hole that more than one throttle nozzle of the present invention is linked in addition; can be applied in for example shown in Figure 9 with a pair of air jet system (5a; 5b) configuration opposite to each other; make the jet type of colliding each other of high velocity jet respectively; the type that is configured in the duromer 30 on its injection axis extended line from the jet collision of an air jet system 5c high velocity jet etc. that makes shown in Figure 10, the various types that in the past just had as the basic structure of aeropulverizer.
In addition; the effect of the micronize performance of being brought by the compound action of the aeropulverizer in the micro-granulating device 1 shown in top and ball mill is not limited to shown in Figure 1 aeropulverizer and ball mill are configured in structure on the same series circulation loop; even aeropulverizer for example shown in Figure 11 is connected by the series circulation loop respectively with respect to same head tank with ball mill; and both become the structure of shunt circuit each other, also can obtain comparably.Under the situation that is this loop structure; because the raw material particle that carries out repeatedly being handled respectively by aeropulverizer and ball mill returns same head tank; after here mixed; again to the such circular treatment of each unit feeding; so, finally can access the micronize performance with the situation equal extent of the loop structure of Fig. 1.
Symbol description
1: micro-granulating device; 2: head tank; 3: solution feed pump; 4: aeropulverizer; 5,5a, 5b, 5c: spray nozzle device; 6: heat exchanger; 7: ball mill; 8: container; 9: rotating shaft; 10: rotating vane; 11: air motor; 12: the slurry introducing port; 13: the slurry outlet; 14: microballon; 15: the raw material particle; 20: three company's throttle nozzles; 21: throttle nozzle; 22: hole portion (bore is certain); 23: wide diameter portion; 30: duromer.
Claims (8)
1. micro-granulating device; described micro-granulating device possesses head tank that the slurry that contains the raw material particle is accommodated, connects by the series circulation loop with respect to this head tank; in slurry, sandwich raw material particle and the ball mill of pulverizing, connect by the series circulation loop with respect to described head tank by the microballon that has been applied in revolving force; aeropulverizer by the pressurized high-pressure slurry of spray nozzle device high velocity jet; it is characterized in that
Described aeropulverizer has the more than one spray nozzle device of the described high-pressure slurry of high velocity jet and forms the chamber of spraying the micronize space of slurry from this spray nozzle device,
Described ball mill has described microballon input, and make container that slurry flows from from a distolateral introducing port to another distolateral outlet, mutually across being interval with rotating shaft for a plurality of roughly discoid rotating vanes that in container, microballon and slurry stirred, making the drive unit of this rotating shaft rotation, described container has drum, described rotating shaft on the central shaft that is configured in this cylinder tilts with predetermined angle with respect to vertical direction.
2. micro-granulating device as claimed in claim 1 is characterized in that, the container of described ball mill has the compression stress of being endowed and implemented the accurately machined internal face of minute surface.
3. micro-granulating device as claimed in claim 1 or 2 is characterized in that, the rotating shaft of described ball mill is provided with the ceramic cladding parts of covering surfaces.
4. as each the described micro-granulating device in the claim 1 to 3, it is characterized in that the drive unit of described ball mill possesses self-cooling body.
5. as each the described micro-granulating device in the claim 1 to 4, it is characterized in that the spray nozzle device of described aeropulverizer possesses and is attached at coaxial plural throttle nozzle.
6. micro-granulating device as claimed in claim 5 is characterized in that, the spray nozzle device of described aeropulverizer has wide diameter portion in each downstream of the described throttle nozzle that links more than two.
7. as each the described micro-granulating device in the claim 1 to 6, it is characterized in that described aeropulverizer possesses mutually a pair of spray nozzle device of configuration in opposite directions, make from the jet of each spray nozzle device high velocity jet and collide each other.
8. as each the described micro-granulating device in the claim 1 to 6, it is characterized in that described aeropulverizer possesses and is configured in the described chamber, and makes from the duromer of the jet collision of spray nozzle device high velocity jet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012027990A JP5628228B2 (en) | 2012-02-13 | 2012-02-13 | Atomizer |
| JP2012-027990 | 2012-02-13 |
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| CN103240155A true CN103240155A (en) | 2013-08-14 |
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| CN201310036276.0A Active CN103240155B (en) | 2012-02-13 | 2013-01-30 | Micro-granulating device |
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| JP (1) | JP5628228B2 (en) |
| KR (1) | KR20130093018A (en) |
| CN (1) | CN103240155B (en) |
| TW (1) | TWI595927B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111013744A (en) * | 2019-12-25 | 2020-04-17 | 刘祥中 | High-efficient oblique horizontal grinding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6219910B2 (en) * | 2015-11-19 | 2017-10-25 | 株式会社スギノマシン | Atomizer |
| CN105665082A (en) * | 2016-01-25 | 2016-06-15 | 长春工业大学 | Three-dimensional oscillating high-energy ball mill |
| CN113509992B (en) * | 2021-03-29 | 2022-08-16 | 领地动物诊疗科技(厦门)有限公司 | Bead type homogenizer for grinding biological material |
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| JP2003511222A (en) * | 1999-10-06 | 2003-03-25 | コーナーストーン テクノロジーズ， エル．エル．シー． | High pressure mill and method of making ultrafine particles of material using high pressure mill |
| JP2006346942A (en) * | 2005-06-14 | 2006-12-28 | Refinverse Inc | Resin powder treatment apparatus and resin powder treatment method |
| JP2011115729A (en) * | 2009-12-04 | 2011-06-16 | Sugino Machine Ltd | Atomizing device |
| JP2011147924A (en) * | 2009-12-26 | 2011-08-04 | Kyocera Corp | Rotary member and device for stirring or crushing using the same |
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| ATE6210T1 (en) * | 1979-02-21 | 1984-03-15 | Eiger Engineering Limited | IMPROVED APPARATUS FOR GRINDING, MIXING OR DISPERSING. |
| JP3176757B2 (en) * | 1993-04-28 | 2001-06-18 | キヤノン株式会社 | Method for producing toner for developing electrostatic images |
| JP3441802B2 (en) * | 1994-07-26 | 2003-09-02 | 正勝 飯岡 | Stirring mill for fine powder grinding |
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2012
- 2012-02-13 JP JP2012027990A patent/JP5628228B2/en active Active
- 2012-12-25 TW TW101149796A patent/TWI595927B/en active
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003511222A (en) * | 1999-10-06 | 2003-03-25 | コーナーストーン テクノロジーズ， エル．エル．シー． | High pressure mill and method of making ultrafine particles of material using high pressure mill |
| JP2006346942A (en) * | 2005-06-14 | 2006-12-28 | Refinverse Inc | Resin powder treatment apparatus and resin powder treatment method |
| JP2011115729A (en) * | 2009-12-04 | 2011-06-16 | Sugino Machine Ltd | Atomizing device |
| JP2011147924A (en) * | 2009-12-26 | 2011-08-04 | Kyocera Corp | Rotary member and device for stirring or crushing using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111013744A (en) * | 2019-12-25 | 2020-04-17 | 刘祥中 | High-efficient oblique horizontal grinding machine |
| CN111013744B (en) * | 2019-12-25 | 2023-06-23 | 东莞市琅菱机械有限公司 | High-efficient oblique horizontal type grinds machine |
Also Published As
| Publication number | Publication date |
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| JP5628228B2 (en) | 2014-11-19 |
| TWI595927B (en) | 2017-08-21 |
| CN103240155B (en) | 2015-10-21 |
| KR20130093018A (en) | 2013-08-21 |
| TW201345613A (en) | 2013-11-16 |
| JP2013163162A (en) | 2013-08-22 |
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