CN109529716A - By the method for granulating powders - Google Patents
By the method for granulating powders Download PDFInfo
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- CN109529716A CN109529716A CN201710867068.3A CN201710867068A CN109529716A CN 109529716 A CN109529716 A CN 109529716A CN 201710867068 A CN201710867068 A CN 201710867068A CN 109529716 A CN109529716 A CN 109529716A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/12—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/14—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating dishes or pans
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/54—Mixing liquids with solids wetting solids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/90—Mixers with rotating receptacles with stirrers having planetary motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
- B01F33/813—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles mixing simultaneously in two or more mixing receptacles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/10—Mixers with rotating receptacles with receptacles rotated about two different axes, e.g. receptacles having planetary motion
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- Organic Chemistry (AREA)
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- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses by the method for granulating powders.It include rotating the container comprising powder and liquid around the longitudinal axis of container, while container also being made to revolve around the centrifugation axis coplanar with longitudinal axis by the method that powder forms multiple made of substantially spherical particles with required diameter.
Description
Technical field
The present invention relates to form particle, and the method in particular to forming particle by powder.
Background technique
Granulation is granulated the method for referring to and manufacturing solid particle by powder, slurry or bulk material.For example, prilling process can
For forming particle by the combination for the Impurity Absorption material for being ground into fine powder and then mixing.It is formed by this class powder
Particle can be used for water filtering purpose.Some technologies for granulation include extrusion granulation, centrifugal granulating, melt pelletization, make by spraying
Grain and extrusion granulation.
Centrifugal granulating starts from for small Starting Particle being added on centrifugation plate, then by it is continuous it is alternate in a manner of sprinkling powder
End and liquid, such as water.As the process continues, powder bed is deposited on small Starting Particle.The process continues, until
Enough powder have adhered on small Starting Particle to generate the particle with required average diameter.Centrifugal granulating uses simple
Equipment, and can produce high yield.However, centrifugal granulating needs small Starting Particle, this is likely difficult to obtain.Centrifugal granulating
It may take relatively long period of time and generate non-uniform particle.Centrifugal granulating it may also be desirable to balance many technological parameters, example
Such as the amount of small Starting Particle, the amount of water and the rate, the rate of the amount of powder and addition powder and turning for centrifugation plate of adding water
Speed.Therefore, the production time and product quality generated by centrifugal granulating may be highly dependent on centrifugal granulating operators'
Technical ability.
Summary of the invention
It include making comprising powder and liquid by the method that powder forms the made of substantially spherical particle with required diameter
Container rotates (rotating) around the longitudinal axis of container, while also making container around the centrifugation axis coplanar with longitudinal axis
It revolves (revolving).
Various embodiments are related to the method that multiple made of substantially spherical particles with required diameter are formed by powder.It should
Method includes being placed in powder in the container with longitudinal axis, and liquid is added in container, makes container around longitudinal axis
Rotation makes container around centrifugation axis revolution, and repeats adding liquid, be rotated about longitudinal axes container, surround container
The step of being centrifuged axis revolution, until forming multiple made of substantially spherical particles with required diameter by powder.Powder is insoluble
In liquid.It is coplanar with longitudinal axis to be centrifuged axis.While container is around centrifugation axis revolution, container is revolved around longitudinal axis
Turn.In some embodiments, while container is around centrifugation axis revolution, container is rotated about longitudinal axes, revolving speed
For 1,500 revs/min (RPM) to 3,500 RPM.In some embodiments, while container is around centrifugation axis revolution,
Container is rotated about longitudinal axes, for 10 seconds to the 60 seconds time after each adding liquid.In some embodiments,
Powder includes filtering material and adhesive material.In some specific embodiments, filtering material includes FeOOH, dioxy
Change titanium and manganese oxide.In some embodiments, liquid includes water.In some embodiments, the median particle of powder is
0.050 micron to 100 microns.In some embodiments, the required diameter of particle is 0.1 millimeter (mm) to 3 mm.Some
In embodiment, container is rotated around longitudinal axis with first direction, and is revolved around centrifugation axis with second direction, and second
Direction is opposite with first direction.In some embodiments, by adding liquid, so that container is rotated about longitudinal axes and is made to hold
Device repeats 10-40 times around the step of centrifugation axis revolution.In some embodiments, liquid is added in container include with
Lower at least one: it sprays the liquid into container, and liquid is added dropwise in container.
Various embodiments are related to forming the another kind of multiple made of substantially spherical particles with required diameter by powder
Method.This method include powder and liquid is kneaded together to form moist powder, moist powder is placed in longitudinal axis
In the container of line, it is rotated about longitudinal axes container, and makes container around centrifugation axis revolution.Powder does not dissolve in liquid.From
Mandrel line is coplanar with longitudinal axis.While container is around centrifugation axis revolution, container is rotated about longitudinal axes, thus by
Powder forms multiple made of substantially spherical particles with required diameter.In some embodiments, centrifugal shaft is surrounded in container
While line revolves, container is rotated about longitudinal axes, 1,500 revs/min of revolving speed (RPM) to 3500 RPM.Some
In embodiment, the diameter for being formed by made of substantially spherical particle is the function of the weight percent of liquid in moist powder.?
In some embodiments, powder includes filtering material and adhesive material.In some specific embodiments, filtering material includes
FeOOH, titanium dioxide and manganese oxide.In some embodiments, liquid includes water.In some embodiments, powder
Median particle be 0.050 micron to 100 microns.In some embodiments, the required diameter of particle be 0.1 millimeter (mm) extremely
3 mm.In some embodiments, container is rotated around longitudinal axis with first direction, and around centrifugation axis with second party
To revolution, second direction is opposite with first direction.
In conjunction with the accompanying drawings refer to following embodiment of the present invention description, above and other feature of the invention with
And realize that their mode will be apparent, and present invention itself will be better understood when.
Detailed description of the invention
Fig. 1 be suitable for the method that forms made of substantially spherical particle by powder according to the embodiment of the disclosure from
The schematic diagram of heart mixer construction.
Fig. 2 is suitable for the another of the method for forming made of substantially spherical particle by powder according to the embodiment of the disclosure
A kind of schematic diagram of centrifugal mixer construction.
Fig. 3 is suitable for the another of the method for forming made of substantially spherical particle by powder according to the embodiment of the disclosure
A kind of schematic diagram of centrifugal mixer construction.
Fig. 4 be illustrate according to some embodiments of the disclosure formed by powder it is multiple basic with required diameter
The flow chart of the method for the particle of upper spherical shape.
Fig. 5 be illustrate according to some embodiments of the disclosure formed by powder it is multiple basic with required diameter
The flow chart of another method of the particle of upper spherical shape.
Detailed description of the invention
As described above, centrifugal granulating may be a kind of method of time-consuming, and generated particle may have non-uniform product
Matter.The embodiment of the disclosure, which provides, to be used for quick, consistent and is formed with the quality than centrifugal granulating more evenly with institute
The method for needing the made of substantially spherical particle of diameter.It can directly be formed by powder according to the method for the embodiment of the disclosure
Grain, without small Starting Particle.Centrifugal mixer, the centrifugal mixer are used according to the method for the embodiment of the disclosure
It rotates the container containing powder around its longitudinal axis, and makes container around the centrifugation axis coplanar with longitudinal axis simultaneously
Revolution.Such centrifugal mixer can be obtained from various manufacturers, and be properly termed as example dual asymmetric centrifuge, twin shaft from
Heart mixer, planetary centrifugal mixer or centrifugal epicyclic mixer.
Fig. 1,2 and 3 are the sides for forming made of substantially spherical particle by powder suitable for the embodiment according to the disclosure
The schematic diagram of some centrifugal mixers construction of method.It is to be understood that centrifugal mixer construction is illustrative example, and not anticipate
It is limiting the scope of the present disclosure.Fig. 1 shows the centrifugation including container 12, rotating member 14, revolve component 16 and hollow shaft 18
Mixer 10.Container 12 has longitudinal axis 20.Hollow shaft 18 has centrifugation axis 22.In some embodiments, centrifugal shaft
Line 22 is coplanar with longitudinal axis 20.
Container 12 can be formed by any durable material with powder ready for use and liquid compatible.Container 12 can be as
Hydrostatic column shown in Fig. 1.Rotating member 14 can be the bar (as shown in fig. 1) or container 12 for being connected to container 12
In rotating cup therein (rotator cup).Rotating member 14 is connected to motor or other device (not shown), so that rotation
Turn the rotation of component 14.Container 12 and rotating member 14 are aligned, so that the rotation of rotating member 14 causes container 12 around longitudinal axis
Line 20 rotates.Revolution component 16 can be the disk or arm that rotating member 14 is physically connected to hollow shaft 18.Revolve structure wherein
Part 16 is in some embodiments of disk, and rotating member 14 and container 12 can be set on the periphery of revolution component 16.Wherein
Revolution component 16 is in some of the other embodiments of arm, and rotating member 14 and container 12 can be set in the remote of revolution component 16
End from hollow shaft 18.Hollow shaft 18 can connect to motor or device (not shown), so that hollow shaft 18 rotates.Container
12, rotating member 14, revolution component 16 and hollow shaft 18 are aligned, so that the rotation of hollow shaft 18 leads to container 12, rotating member
14 revolve with revolution component 16 around centrifugation axis 22.
In use, rotating member 14 makes container 12 around longitudinal axis 20 with first direction D1 rotation.Meanwhile hollow shaft
18 make the rotation of component 16 of revolving, and cause rotating member 14 and container 12 around centrifugation axis 22 with second direction D2 revolution.One
In a little embodiments, such as embodiment shown in Fig. 1, second direction D2 different from first direction D1.For example, Fig. 1's
In embodiment, first direction D1 is counter clockwise direction, and second direction D2 is clockwise.
When container 12 revolves around centrifugation axis 22, longitudinal axis 20 keeps coplanar with centrifugation axis 22.That is,
When container 12 revolves around centrifugation axis 22, longitudinal axis 20 is comprised in an infinite number of comprising the vertical of centrifugation axis 22
In one of plane.In some embodiments, as shown in fig. 1, longitudinal axis 20 can be relative to revolution component 16 with angle A
Setting.In some embodiments, angle A can be as small as 0 °, 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, 35 ° or 40 °, or big extremely
Any angle between 50 °, 55 °, 60 °, 65 °, 70 °, 75 °, 80 °, 85 ° or 90 ° or any two aforementioned angular.For example,
In some embodiments, angle A may range from 0 ° to 90 °, 10 ° to 80 °, 20 ° to 70 °, 30 ° to 60 °, 35 ° to 55 °,
Or 40 ° to 50 °.In some embodiments, angle A can be about 45 °.
Fig. 2 shows the method for forming made of substantially spherical particle by powder suitable for the embodiment according to the disclosure
Another centrifugal mixer construction.Fig. 2 shows centrifugal mixer 30.Centrifugal mixer 30 is similar to above with reference to Fig. 1 institute
The centrifugal mixer 10 of description, in addition to it further includes the second container 32 at the diametrically opposite position being arranged on revolution component 16
With the second rotating member 34.Second container 32 has longitudinal axis 36.Second container 32 and the second rotating member 34 can with such as
The upper container 12 and rotating member 14 are essentially identical.Second container 32 and the alignment of the second rotating member 34, so that the second rotation
The rotation for turning component 34 causes second container 32 to rotate around longitudinal axis 36.The operation of centrifugal mixer 30 and above-mentioned centrifugation are mixed
The operation of clutch 10 is essentially identical, wherein the second rotating member 34 makes second container 32 around longitudinal axis 36 with first direction D1
Rotation.Compared with centrifugal mixer 10, increase the capacity that second container 32 improves centrifugal mixer 30, and can also be appearance
Device 12 provides balance (counterbalance), thus provides smoother operation.
Fig. 3 shows the method for forming made of substantially spherical particle by powder suitable for the embodiment according to the disclosure
Again another centrifugal mixer construction.Fig. 3 is shown including the first container 42, second container 44, the first rotating member 46,
The centrifugal mixer 40 of two rotating members 48 and hollow shaft 50.The first container 42 has first longitudinal direction axis 52.Second container 44
With second longitudinal direction axis 54.Hollow shaft 50 has centrifugation axis 56.In some embodiments, axis 56 and first is centrifuged to indulge
It is coplanar to axis 52 and second longitudinal direction axis 54.
The first container 42 and second container 44 respectively can be as above referring to Fig.1 for described in containers 12.The
One rotating member 46 and the second rotating member 48 respectively can be as above referring to Fig.1 for described in rotating members 14.
The first container 42 and the alignment of the first rotating member 46, so that the rotation of the first rotating member 46 causes the first container 42 around first
Longitudinal axis 52 rotates.Second container 44 and the alignment of the second rotating member 48, so that the rotation of the second rotating member 48 leads to the
Two containers 44 are rotated around second longitudinal direction axis 54.Hollow shaft 50 can connect to motor or device (not shown), so that public
Shaft 50 rotates.
First rotating member 46 and the second rotating member 48 are physically connected to hollow shaft 50.In some embodiments,
First rotating member 46 and the second rotating member 48 are physically connected to the diametrically side of hollow shaft 50 to help balanced action
Power on hollow shaft 50.The first container 42, second container 44, the first rotating member 46 and the alignment of the second rotating member 48, make
The rotation for obtaining hollow shaft 50 causes the first container 42, second container 44, the first rotating member 46 and the second rotating member 48 to surround
Axis 56 is centrifuged to revolve.In as in the figure 3 embodiment, the first container 42, second container 44, the first rotating member 46
It is downwardly projected with the second rotating member 48 from hollow shaft 50 is angled.
In use, the first rotating member 46 makes the first container 42 around first longitudinal direction axis 52 with first direction D1 rotation
Turn, and the second rotating member 48 makes second container 44 around second longitudinal direction axis 54 also with first direction D1 rotation.Meanwhile it is public
Shaft 50 make the first container 42, second container 44, the first rotating member 46 and the second rotating member 48 around centrifugation axis 56 with
Second direction D2 revolution.In some embodiments (such as embodiment shown in Fig. 3), second direction D2 and first direction
D1 is different.
Fig. 4 be illustrate according to some embodiments of the disclosure formed by powder it is multiple basic with required diameter
The flow chart of the method 100 of the particle of upper spherical shape.Method 100 is described with reference to the centrifugal mixer 10 of Fig. 1, it is to be understood that,
Method 100 can be used together with any centrifugal mixer described herein.Method 100, which starts by, is placed in powder
Step 102 in container 12 with longitudinal axis 20.In some embodiments, when adding powder, container 12 can be
Rotating member 14 through being connected in centrifugal mixer 10.In other embodiments, powder is placed in container 12 first, so
Container 12 is connected to rotating member 14 afterwards.
Next, rotating container 12 optionally around longitudinal axis 20 in step 104.Meanwhile making to hold in step 106
Device 12 revolves around centrifugation axis 22.The rotation and revolution of container 12 are used for mixed-powder at this time, and the powder can be as follows
The combination of the material.Powder is pre-mixed wherein or powder is in the embodiment of homogenous material, it is convenient to omit step
104 and 106.
As defined herein, powder is that have as low as 0.05 micron (μm), 0.1 μm, 0.2 μm, 0.3 μm, 0.5
μm, 1 μm or 2 μm, perhaps greatly to 3 μm, 5 μm, 10 μm, 20 μm, 30 μm, 50 μm or 100 μm or any two aforementioned value it
Between intermediate value powder size fine powder.For example, in some embodiments, intermediate value powder size can be 0.05 μm to 100 μ
M, 0.05 μm to 2 μm, 0.3 μm to 30 μm, 1 μm to 50 μm, 3 μm to 50 μm or 10 μm to 20 μm.Intermediate value powder size can lead to
Dynamic light scattering system for example as known in the art is crossed to determine.
In some embodiments, powder can be the mixture of any one of multiple material or material.Exemplary material
Material includes zeolite, metal oxide, pharmaceutical powder, wax powder end, rubber powder and polymer powder.For example, in some embodiment party
In case, powder can be filtering material and adhesive material.Filtering material and adhesive can be shaped to filtering/absorption together
Grain, is used to remove impurity, such as heavy metal from water.In some embodiments, filtering material may include such as hydroxyl
Iron oxide, titanium dioxide and manganese oxide (for example, form of manganese sand), as described above, it respectively has crushed to form fine powder.?
In some embodiments, adhesive can be such as clay, such as Concave-convex clay rod or montmorillonitic clay, as described above, it is
Fine powder is formed through crushing.
Next, liquid can be added in container 12 in step 108.In some embodiments, spray can be passed through
It is sprinkled upon adding liquid on the powder in container 12.In other embodiments, can by be added dropwise in container 12 come
Adding liquid.Liquid is selected so that powder does not dissolve in liquid.In some embodiments, liquid can be mono-component liquid.
In other embodiments, liquid can be multicomponent necessary to realize property needed for resulting made of substantially spherical particle
Liquid.The example of component fluids may include such as water, isopropanol, toluene, dimethyl sulfoxide, ethylene glycol, silicone oil and polyethers.
Next, rotating container 12 around longitudinal axis 20 in step 110.Meanwhile in step 112, enclose container 12
It revolves around centrifugation axis 22, to initially form made of substantially spherical particle, without the use of small Starting Particle.Synchronizing step 110
It can be persistently as short as 10 seconds, 15 seconds, 20 seconds or 25 seconds time with 112, or last up to 35 seconds, 40 seconds, 50 seconds or 60
The time of second, or continue any time between any aforesaid time.For example, in some embodiments, step 110 and
112 can for 10 seconds to 60 seconds, 15 seconds to 50 seconds, 20 seconds to 40 seconds or 25 seconds to 35 seconds time.
In some embodiments, container 12 can be with down to 1,500 rev/min of (RPM), 1,700 RPM, 1,900
RPM, 2,100 RPM or 2,300 RPM, or up to 2,700 RPM, 2,900 RPM, 3,100 RPM, 3,300 RPM or
The speed of 3,500 RPM, or rotated with the speed between the aforementioned speed of any two around longitudinal axis 20.For example, some
In embodiment, container 12 can be with 1,500 RPM to 3, and 500 RPM, 1,700 RPM to 3,300 RPM, 1,900 RPM are extremely
The speed of 3,100 RPM, 2,100 RPM to 2,900 RPM or 2,300 RPM to 2,700 RPM is revolved around longitudinal axis 20
Turn.In some embodiments, container 12 can be rotated with the speed of about 2,500 RPM around longitudinal axis 20.
In some embodiments, container 12 can be with down to 1,500 RPM, 1,700 RPM, 1,900 RPM, 2,100
RPM or 2,300 RPM, or up to 2,700 RPM, 2,900 RPM, 3,100 RPM, 3,300 RPM or 3,500 RPM's
Speed, or revolved with the speed between the aforementioned speed of any two around centrifugation axis 22.For example, in some embodiments,
Container 12 can with 1,500 RPM to 3,500 RPM, 1,700 RPM to 3,300 RPM, 1,900 RPM to 3,100 RPM, 2,
The speed of 100 RPM to 2,900 RPM or 2,300 RPM to 2,700 RPM revolves around centrifugation axis 22.In some implementations
In scheme, container 12 can be revolved with the speed of about 2,500 RPM around centrifugation axis 22.
Next, check made of substantially spherical particle at step 114, with the made of substantially spherical particle diameter of determination whether
Correctly.That is, the average diameter of made of substantially spherical particle is needed for expected purpose.In some embodiments, it puts down
Equal particle diameter can be as small as 0.1 millimeter (mm), 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm, 1.0 mm, 1.2 mm or 1.4
Mm, or greatly to 1.6 mm, 1.8 mm, 2.0 mm, 2.2 mm, 2.4 mm, 2.6 mm, 2.8 mm or 3.0 mm, Huo Zheren
Any diameter between what two aforementioned diameter.For example, in some embodiments, average grain diameter can be for 0.1 mm extremely
3.0 mm, 0.2 to 0.6 mm, 0.6 mm to 1.2 mm or 2.0 mm to 3.0 mm.The average diameter of made of substantially spherical particle
For example by sieve analysis or it can make the particle pass through a series of sieve of known screen sizes to determine.Average diameter can be can
Collect the arithmetic mean of instantaneous value of the particle greater than 90 weight % sieved twice.
If average grain diameter is incorrect, method returns to step 108, and adds more liquid as described above
Body.Then, step 110 and 112 make container 12 and meanwhile rotation and revolution, then check substantially ball again in step 114
The particle of shape.The repetition process is correct until average grain diameter, and this method terminates in step 116.In some realities
Apply in scheme, step 108,110,112 and 114 can repeat as little as 10 times, 14 times, 18 times or 22 times, or up to 28 times,
32 times, 36 times or 40 times, or repeat number more as between the aforementioned number of any two.For example, in some embodiment party
In case, step 108,110,112 and 114 can be repeated 10 to 40 times, 14 to 36 times, 18 to 32 times or 22 to 28 times.
As defined herein, made of substantially spherical particle is the particle with the draw ratio of 0.8-1.2.One
In a little embodiments, made of substantially spherical particle has the draw ratio of 0.9-1.1.In some embodiments, made of substantially spherical
Particle have about 1.0 draw ratio, wherein about indicate plus or minus measurement error, as known in the art.
By using the above method 100 it has been found that for given powder, resulting made of substantially spherical particle is average straight
Diameter can be the function for the total amount of liquid being added with the weight percent of total powder and total liquid.That is, the powder of known quantity
End and liquid can produce the particle with predictable average grain diameter.Fig. 5 is illustrated according to some of the disclosure
Embodiment is formed the flow chart of another method 200 of multiple made of substantially spherical particles with required diameter by powder.
Method 200 generates made of substantially spherical particle using following discovery, the professional skill without depending on operator: gained
Made of substantially spherical average diameter of particles can be with the weight percent of total powder and total liquid be added total amount of liquid letter
Number.
Centrifugal mixer 10 referring to Fig.1 describes method 200, it is to be understood that, method 200 can be with institute herein
Any centrifugal mixer stated is used together.Method 200 starts by powder and liquid is kneaded together to form humidity
The step 202 of powder.Powder and liquid can be as described in the methods 100 above with reference to Fig. 4.Kneading can pass through this field
In any one of known several mechanical mixers (such as kneader or blend formula mixer (blender mixer)) come
At.Next, moist powder is placed in container 12 in step 204.As the above method 100, in some embodiments,
When adding moist powder, container 12 can be already attached to the rotating member 14 in centrifugal mixer 10.In other embodiment party
In case, moist powder is placed in container 12 first, container 12 is then connected to rotating member 14.
Next, rotating container 12 around longitudinal axis 20 in step 206.Meanwhile in step 208, enclose container 12
Around the centrifugation revolution of axis 22 to form made of substantially spherical particle, without the use of small Starting Particle.Synchronizing step 206 and 208
It can carry out being as short as 3 minutes, 6 minutes or 9 minutes, or up to 12 minutes, 15 minutes, 18 minutes or 20 minutes time,
Or any duration between the progress aforementioned duration of any two.For example, in some embodiments, step 206 and 208 can be with
3 minutes to 20 minutes, 6 minutes to 18 minutes or 9 minutes to 15 minutes durations are carried out simultaneously.In some embodiments, together
It rapid 206 and 208 can be carried out continuously in entire duration step by step.In other embodiments, synchronizing step 206 and 208 can be with
The entire duration carried out is broken down into short duration, has interval between to allow container 12 cooling.In some embodiments
In, short duration may be as little to 10 seconds, 15 seconds, 20 seconds or 25 seconds, or up to 35 seconds, 40 seconds, 50 seconds or 60 seconds time,
Or any time between any aforesaid time, such as 10 seconds to 60 seconds, 15 seconds to 50 seconds, 20 seconds to 40 seconds or 25 seconds extremely
35 seconds.
Specific embodiment
Embodiment 1
It is 69 grams (g) by FeOOH, titanium dioxide, manganese sand and zeolite 13X group that weight ratio is 1:1:1:0.6 by amount
At filtering material powder and be placed in container by the adhesive of the Concave-convex clay rod powder constituent of 6 g.Container and above ginseng
According to the centrifugal mixer (Speedmixer of type described in Fig. 1TM150.1 FVZ-K of DAC comes from FlacTek Inc.,
Landrum, South Carolina, U.S.) compatible use.Powder is mixed with the revolving speed of 3,000 RPM by centrifugal mixer
It closes twice, continues 30 seconds every time.
Amount is sprayed onto container for 0.5 to 2 gram of water, then by centrifugal mixer with 3,000 RPM stirring 30 seconds.
Check that the particle of container is formed after stirring.It repeats addition water, stirring and checks the process that particle is formed, until forming substantially ball
The particle of shape.When the total amount of added water is 11 g, it is found that made of substantially spherical particle has 0.6 mm to 1.2 mm's
Diameter.
Embodiment 2
The FeOOH for being 1:1:1:0.6 by weight ratio, titanium dioxide, manganese sand and zeolite 13X that amount is 1000 g are formed
Filtering material powder, the adhesive that is made of 125 g Portland cements and 200 g water that 1 is pre-mixed in mechanical kneader is small
When to form moist powder.70 g moist powders are placed in container.Container and the centrifugation above with reference to type described in Fig. 1
Mixer (SpeedmixerTM150.1 FVZ-K of DAC comes from FlacTek Inc., Landrum, South Carolina,
U.S.) compatible use.Moist powder is mixed 8 minutes with the revolving speed of 3,000 RPM by centrifugal mixer.It was found that 93% institute
Obtain the diameter that made of substantially spherical particle has 0.2 to 0.6 mm.
Embodiment 3
Will amount be 20 g 1000 absorbent powder of HISIV (come from UOP LLC, Des Plaines, Illinois, U.S.) and
It is placed in container by the adhesive of 3 g montmorillonite powder constituents.Container is mixed with the centrifugation above with reference to type described in Fig. 1
Device (SpeedmixerTM150.1 FVZ-K of DAC comes from FlacTek Inc., Landrum, South Carolina, U.S.)
Compatible use.Powder is mixed twice with the revolving speed of 3,000 RPM by centrifugal mixer, continues 30 seconds every time.
Amount is added in container for 0.5 to 2 gram of water by dropper, then by centrifugal mixer with 2,500 RPM
Stirring 30 seconds.Check that the particle of container is formed after stirring.It repeats addition water, stirring and checks the process that particle is formed, until shape
At made of substantially spherical particle.When the total amount of added water is 15.9 g, it is found that made of substantially spherical particle has 2 mm
To the diameter of 3 mm.
Although describing the present invention relative to exemplary design, can in spirit and scope of the present disclosure into
The one step modification present invention.In addition, the application is intended to this occurred the known or conventional practice in fields of the present invention Nei
The deviation of class and the disclosure.
Claims (20)
1. the method for forming multiple made of substantially spherical particles with required diameter by powder, which comprises
The powder is placed in the container with longitudinal axis；
Liquid is added in the container, the powder does not dissolve in the liquid；
It is rotated about longitudinal axes container；
Make container around centrifugation axis revolution, the centrifugation axis is coplanar with longitudinal axis, wherein in the container around centrifugation
While axis revolves, the container is rotated about longitudinal axes；With
Adding liquid is repeated, container is rotated about longitudinal axes, and makes container around centrifugation axis revolution, until by powder shape
At multiple made of substantially spherical particles with required diameter.
2. method described in claim 1, wherein the container is around vertical while the container is around centrifugation axis revolution
It is rotated to axis, 1,500 revs/min of revolving speed (RPM) to 3,500 RPM.
3. method described in claim 1, wherein the container is around vertical while the container is around centrifugation axis revolution
It is rotated to axis, for 10 seconds to the 60 seconds time after each adding liquid.
4. method described in claim 1, wherein the powder bag contains filtering material and adhesive material.
5. method as claimed in claim 4, wherein the filtering material includes FeOOH, titanium dioxide and manganese oxide.
6. method described in claim 1, wherein the liquid includes water.
7. method described in claim 1, wherein the powder has 0.050 micron to 100 microns of median particle.
8. method described in claim 1, wherein the required diameter of the particle is 0.1 millimeter (mm) to 3 mm.
9. method described in claim 1, wherein the container is rotated with first direction around the longitudinal axis and surrounds institute
It states centrifugation axis to revolve with second direction, the second direction is opposite to the first direction.
10. method described in claim 1, wherein by adding liquid, being rotated about longitudinal axes container and surrounding container
The step of centrifugation axis revolution, repeats 10 to 40 times.
11. method described in claim 1, comprises at least one of the following wherein liquid is added in container:
The liquid is sprayed onto the container；With
The liquid is added dropwise in the container.
12. the method for forming multiple made of substantially spherical particles by powder, which comprises
The powder and liquid is kneaded together to form moist powder, and the powder does not dissolve in the liquid；
The moist powder is placed in the container with longitudinal axis；
It is rotated about longitudinal axes the container；With
Make the container around centrifugation axis revolution, the centrifugation axis is coplanar with the longitudinal axis, wherein in the container
While around centrifugation axis revolution, the container is rotated about longitudinal axes, and is formed by powder multiple with required diameter
Made of substantially spherical particle.
13. method described in claim 12, wherein the container surrounds while the container is around centrifugation axis revolution
Longitudinal axis rotation, 1,500 revs/min of revolving speed (RPM) to 3,500 RPM.
14. method described in claim 12, wherein the diameter for being formed by made of substantially spherical particle is the moist powder
In liquid weight percent function.
15. method described in claim 12, wherein the powder bag contains filtering material and adhesive material.
16. method of claim 15, wherein the filtering material includes FeOOH, titanium dioxide and manganese oxide.
17. method described in claim 12, wherein the liquid includes water.
18. method described in claim 12, wherein the powder has 0.050 micron to 100 microns of median particle.
19. method described in claim 12, wherein the required diameter of the particle is 0.1 millimeter (mm) to 3 mm.
20. method described in claim 12, wherein the container is rotated and surrounded with first direction around the longitudinal axis
The centrifugation axis is revolved with second direction, and the second direction is opposite to the first direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710867068.3A CN109529716A (en) | 2017-09-22 | 2017-09-22 | By the method for granulating powders |
| PCT/US2018/051657 WO2019060360A1 (en) | 2017-09-22 | 2018-09-19 | Methods for granulating powders |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710867068.3A CN109529716A (en) | 2017-09-22 | 2017-09-22 | By the method for granulating powders |
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| CN201710867068.3A Pending CN109529716A (en) | 2017-09-22 | 2017-09-22 | By the method for granulating powders |
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| CN (1) | CN109529716A (en) |
| WO (1) | WO2019060360A1 (en) |
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| JP7168954B2 (en) * | 2018-08-21 | 2022-11-10 | 株式会社ビートセンシング | Granulation method |
| CN111151196B (en) * | 2019-12-30 | 2022-06-07 | 中冶长天国际工程有限责任公司 | Multi-disc excitation type forced granulator adopting disturbance method |
| CN115337861B (en) * | 2022-07-19 | 2024-03-19 | 苏州易合医药有限公司 | Device for preparing spherical particle clusters from fine particles |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10139659A (en) * | 1996-09-10 | 1998-05-26 | Freunt Ind Co Ltd | Spherical particle group, its production and spherical particle formulation using the same |
| DE10210786A1 (en) * | 2002-03-12 | 2003-10-02 | Bayer Ag | Mixtures of adsorber materials |
| JP2009263303A (en) * | 2008-04-28 | 2009-11-12 | Freunt Ind Co Ltd | Spherical granule and its manufacturing method |
| WO2009137480A1 (en) * | 2008-05-06 | 2009-11-12 | Boston Scientific Scimed, Inc. | Device and method for mixing materials |
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