CN110227395A - The preparation method of air-flow nanometer - Google Patents
The preparation method of air-flow nanometer Download PDFInfo
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- CN110227395A CN110227395A CN201910618487.2A CN201910618487A CN110227395A CN 110227395 A CN110227395 A CN 110227395A CN 201910618487 A CN201910618487 A CN 201910618487A CN 110227395 A CN110227395 A CN 110227395A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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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
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying
- B01J13/043—Drying and spraying
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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
Abstract
Disclosed by the invention is a kind of preparation method of air-flow nanometer, it is combined using stirring and emulsifying, shearing homogeneous and biofilm filtration and obtains nanoscale emulsifying materials system, spray drying granulation is carried out using the mixed airflow of upper air inlet, upper air draft, the dry, granulation with the novel all-in-one integrated fluidized bed of three points of warm areas again, it improves drying efficiency, reduce particle diameter, there is energy conservation and environmental protection, flexibility height, prepare the technical characterstics such as simple, at low cost, green non-pollution.
Description
Technical field
The invention belongs to air-flow nano particle preparation technical field more particularly to a kind of preparation methods of air-flow nanometer.
Background technique
Spray drying granulation technology is widely used in the fields such as food, medicine, chemical industry.Currently, spray drying granulation method
Traditional Single-stage spray drying granulating system and more complicated multi-stage spray drying-granulating system, traditional single-stage can be divided into
Spray drying granulation system uses the airflow design of air draft under upper air inlet, and there are drying effects to be difficult to control, product grain diameter
It is unevenly distributed, embedding effect is unstable, the problems such as dust pollution is difficult to control, and more complicated multi-stage spray drying-granulating
System preferable can must control particle diameter and drying although solving the problems, such as that some Single-stage spray drying granulating systems exist
Stability, still, its own is there is also bulky, and structure is complicated, and energy consumption is high, and material passes through multiple drying equipment mutabilities
The defects of.
Currently, using the spray drying granulation method used in production, either traditional single stage drying-granulating system, still
Multi-stage spray drying system cannot produce the nanoscale microcapsule granule that particle diameter is less than 50um, with food, health care product,
Medical and health, the continuous development of manufacturing field, to the smallest particles diameter of micro- granulation, more stringent requirements are proposed, the micro- glue of nanoscale
Capsule particle has dimensionally stable, and anti-extrusion easily absorbs, and is easy to be mixed into the features such as going further processing with unclassified stores,
With extensive demand and application prospect
Summary of the invention
The present invention is directed to above-mentioned problem, provides a kind of preparation method of air-flow nanometer.
In order to achieve the above object, the technical solution adopted by the present invention is,
A kind of preparation method of air-flow nanometer, the preparation method include the following steps:
Step 1): material is added in emulsion chamber with the speed of 1-500km/h, with the stirring of 30-2000rpm revolving speed, cream
Change 15-50min, then be placed under the pressure conditions of 1-20Mpa, shear homogeneous 15-60min, obtains emulsifying materials liquid；
Step 2): the biofilm filtration that the emulsifying materials liquid that step 1) is obtained is 1-500um through pore size filter obtains micro-
Nanoscale emulsion；If 3) emulsifying materials liquid enters step by biofilm filtration aperture, otherwise, flows back into 1- through pipeline
Continue to shear homogeneous under the pressure conditions of 20Mpa, the biofilm filtration for being 1-500um using filter opening diameter obtains micro/nano level
Emulsion；
Step 3): the micro/nano level emulsion that step 2) obtains is added to multi-stage spray with the speed of 1-500km/h and is done
In dry tower, it is passed through dry hot-air from multi-stage spray drying tower upper end, is spray-dried, agglomeration is granulated, the first drying of acquisition
Micro/nano level microcapsule granule, and dry hot-air is discharged from multi-stage spray drying tower upper end；
Step 4): the micro/nano level microcapsule granule dry for the first time that step 3) is obtained is added to integrated built in multi-temperature zone
In fluidized bed, dry hot-air is passed through into fluidized bed integrated built in multi-temperature zone, dry, cooling, agglomeration is granulated, and obtains finished product
Micro/nano level microcapsule granule, dry hot-air is arranged from multi-stage spray drying tower upper end in integrated fluidized bed built in the multi-temperature zone
Out；
Step 5): the dry air being discharged in step 3), step 4) is passed through in cyclone separator, in cyclone separator
Cyclonic separation dedusting is carried out, obtains the lesser material fine powder of particle, and tail gas is discharged into bag filter and is dusted processing,
The material fine powder in tail gas is collected, then by the purified air filtration of bag filter, discharge；
Step 6): the material fine powder collected in step 5) is done by pipeline into multi-stage spray drying tower by spraying
Dry, agglomeration is granulated, and obtains micro/nano level microcapsule granule dry for the first time, and micro/nano level microcapsule granule dry for the first time is added to
Dry in integrated fluidized bed built in multi-temperature zone, cooling, agglomeration is granulated, and obtains finished product micro/nano level microcapsule granule, or directly will
The material fine powder collected in step 5) is transported to dry in integrated fluidized bed, cooling, agglomeration built in multi-temperature zone and is granulated, obtain at
Product micro/nano level microcapsule granule.
Preferably, integrated fluidized bed built in the multi-temperature zone includes high-temperature region, middle warm area, low-temperature space, it is described first
Dry micro/nano level microcapsule granule is added sequentially to integrated fluidized bed high temperature area, middle warm area, low-temperature space built in multi-temperature zone,
It is set the product exit collection in low-temperature space, obtains finished product micro/nano level microcapsule granule.
Preferably, the high-temperature region temperature is 300-380 DEG C, the middle warm area temperature is 200-260 DEG C, the low temperature
Area's temperature is 80-100 DEG C.
Preferably, it is 150-200 DEG C that multi-stage spray drying tower upper end, which is passed through dry hot air temperature, the multistage
It is 60-100 DEG C that dry hot air temperature, which is discharged, in spray drying tower upper end.
Preferably, when the material fine powder collected in step 5) being directly transported to integrated fluidized bed built in multi-temperature zone,
The material fine powder of collection is transported to the high-temperature region built in multi-temperature zone in integrated fluidized bed, or the material fine powder of collection is conveyed
To the low-temperature space built in multi-temperature zone in integrated fluidized bed.
Preferably, the finished product micro/nano level microcapsule granule diameter obtained in step 4) or step 6) is 100nm-20um.
Compared with prior art, the advantages and positive effects of the present invention are,
1, nanoscale is obtained using the novel emulsion system that stirring and emulsifying, high shear homogeneous and biofilm filtration combine
Emulsifying materials system；The airflow design for changing air draft under conventionally spray-dried Granulation Equipments upper air inlet, using upper air inlet, upper air draft
Mixed airflow, improve drying efficiency；It is dry with the novel all-in-one integrated fluidized bed of three points of warm areas, one is carried out to material
The drying cooling and agglomeration of step formula are granulated, compared with the existing technology in fluidized bed, can be more energy-saving and environmentally friendly, efficient stable；It can
Secondary agglomeration granulation is carried out so that non-compliant fine powder is returned to hothouse, ensure that the stability of granulation；Back-mounted rotary
The fine powder of wind separator collection can according to the production requirement of variable grain diameter, by pipeline return to hothouse re-start it is attached
It is poly- to be granulated, it also can transport integrated fluidized bed high-temperature region or low-temperature space, flexibility is high；Preparation process is simple, at low cost, green
It is pollution-free；High-temperature region temperature is 300-380 DEG C, and middle warm area temperature is 200-260 DEG C, and low-temperature space temperature is 80-100 DEG C and sets
It sets, so that efficient stable obtains finished product micro/nano level microcapsule granule, if deviateing temperature setting, particle diameter cannot be produced and be less than
The nanoscale microcapsule granule of 50um；Being passed through dry hot air temperature is 150-200 DEG C, and it is 60-100 that dry hot air temperature, which is discharged,
DEG C, drying efficiency is improved, while being conducive to an efficient step and completing the preparation of finished product micro/nano level microcapsule granule, reduces step 5), step
Rapid operation 6)；The covering of the finished product micro/nano level microcapsule granule of acquisition is hard, and solid, content is more stable.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, for ability
For the those of ordinary skill of domain, without any creative labor, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is preparation flow figure of the invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawings and examples
The present invention will be further described.It should be noted that in the absence of conflict, in embodiments herein and embodiment
Feature can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other modes described herein are different from, therefore, the present invention is not limited to the specific of specification is described below
The limitation of embodiment.
Embodiment 1
It is as shown in Figs. 1-2 a kind of specific embodiment of the preparation method of air-flow nanometer, which includes following step
It is rapid:
Step 1): material is added in emulsion chamber with the speed of 1km/h, with the stirring of 30rpm revolving speed, emulsification 20min, then
It is placed under the pressure conditions of 1Mpa, shears homogeneous 30min, obtain emulsifying materials liquid；
Step 2): the biofilm filtration that the emulsifying materials liquid that step 1) is obtained is 1um through pore size filter obtains micro-nano
Otherwise grade emulsion, does not pass through biological membrane aperture if 3) emulsifying materials liquid is entered step by biofilm filtration aperture
Drop, which is flowed back into through pipeline under the pressure conditions of 1Mpa, to be continued to shear homogeneous, and the biofilm filtration for being 1um using filter opening diameter obtains
Obtain micro/nano level emulsion；
Step 3): the micro/nano level emulsion that step 2) obtains is added to multi-stage spray drying tower with the speed of 1km/h
In, it is passed through dry hot-air from multi-stage spray drying tower upper end, is spray-dried, agglomeration granulation, obtains the micro- of drying for the first time
Nanoscale microcapsule granule, and from the dry hot-air of multi-stage spray drying tower upper end discharge, spray-drying process, from multi-stage spray
It is 150 DEG C that drying tower upper end, which is passed through dry hot air temperature, and it is 60 that dry hot air temperature, which is discharged, in multi-stage spray drying tower upper end
℃；
Step 4): integrated fluidized bed built in multi-temperature zone includes 300 DEG C of high-temperature region, 200 DEG C of middle warm area, 80 DEG C low
Warm area is passed through dry hot-air into fluidized bed integrated built in multi-temperature zone, by the micro-nano of the drying for the first time of step 3) acquisition
Grade microcapsule granule is added sequentially to integrated fluidized bed high temperature area, middle warm area, low-temperature space built in multi-temperature zone, dry, cooling, attached
It is poly- to be granulated, it is set the product exit collection in low-temperature space, obtains the finished product micro/nano level microcapsule granule that particle diameter is 80nm,
Hot-air dry in fluidized bed integrated built in multi-temperature zone is discharged from multi-stage spray drying tower upper end；
Step 5): the dry air being discharged in step 3), step 4) is passed through in cyclone separator, in cyclone separator
Cyclonic separation dedusting is carried out, obtains the lesser material fine powder of particle, and tail gas is discharged into bag filter and is dusted processing,
Collect tail gas in material fine powder, then by the purified air filtration of bag filter, be discharged in atmosphere；
Step 6): the material fine powder collected in step 5) is done by pipeline into multi-stage spray drying tower by spraying
Dry, agglomeration is granulated, and obtains micro/nano level microcapsule granule dry for the first time, and micro/nano level microcapsule granule dry for the first time is successively added
Enter to fluidized bed high temperature area integrated built in multi-temperature zone, middle warm area, low-temperature space, dry, cooling, agglomeration is granulated, and obtains particle
Diameter is the finished product micro/nano level microcapsule granule of 80nm；Or directly the material fine powder collected in step 5) is fed sequentially into mostly warm
Integrated fluidized bed high temperature area, middle warm area, low-temperature space built in area, dry, cooling, agglomeration are granulated, and are obtained particle diameter and are
The material fine powder collected in step 5) is directly transported to built in multi-temperature zone by the finished product micro/nano level microcapsule granule of 80nm taking
When dry in integrated fluidized bed, cooling, agglomeration is granulated, two ways can be divided into: one, the material that will be collected in step 5)
Fine powder is transported to the high-temperature region built in multi-temperature zone in integrated fluidized bed, then by middle warm area, low-temperature space processing, obtains particle
Diameter is the finished product micro/nano level microcapsule granule of 80nm；Two, the material fine powder collected in step 5) is transported to built in multi-temperature zone
Low-temperature space processing in integrated fluidized bed, obtains the finished product micro/nano level microcapsule granule that particle diameter is 80nm, a variety of processing
Step, flexibility are high.
Embodiment 2
It is as shown in Figs. 1-2 a kind of specific embodiment of the preparation method of air-flow nanometer, which includes following step
It is rapid:
Step 1): material is added in emulsion chamber with the speed of 250km/h, with the stirring of 1015rpm revolving speed, emulsification
40min, then be placed under the pressure conditions of 10.5Mpa, homogeneous 60min is sheared, emulsifying materials liquid is obtained；
Step 2): the biofilm filtration that the emulsifying materials liquid that step 1) is obtained is 250um through pore size filter obtains micro-nano
Otherwise meter level emulsion, does not pass through biological membrane aperture if 3) emulsifying materials liquid is entered step by biofilm filtration aperture
Drop flowed back into through pipeline under the pressure conditions of 10.5Mpa and continue to shear homogeneous, the biomembrane for being 250um using filter opening diameter
Filtering obtains micro/nano level emulsion；
Step 3): the micro/nano level emulsion that step 2) obtains is added to multi-stage spray drying with the speed of 250km/h
In tower, it is passed through dry hot-air from multi-stage spray drying tower upper end, is spray-dried, agglomeration granulation, obtains drying for the first time
Micro/nano level microcapsule granule, and from the dry hot-air of multi-stage spray drying tower upper end discharge, spray-drying process, it is sprayed from multistage
It is 175 DEG C that mist drying tower upper end, which is passed through dry hot air temperature, and multi-stage spray drying tower upper end is discharged dry hot air temperature and is
80℃；
Step 4): integrated fluidized bed built in multi-temperature zone includes 325 DEG C of high-temperature region, 220 DEG C of middle warm area, 90 DEG C low
Warm area is passed through dry hot-air into fluidized bed integrated built in multi-temperature zone, by the micro-nano of the drying for the first time of step 3) acquisition
Grade microcapsule granule is added sequentially to integrated fluidized bed high temperature area, middle warm area, low-temperature space built in multi-temperature zone, dry, cooling, attached
It is poly- to be granulated, it is set the product exit collection in low-temperature space, obtains the finished product micro/nano level microcapsule granule that particle diameter is 70nm,
Hot-air dry in fluidized bed integrated built in multi-temperature zone is discharged from multi-stage spray drying tower upper end；
Step 5): the dry air being discharged in step 3), step 4) is passed through in cyclone separator, in cyclone separator
Cyclonic separation dedusting is carried out, obtains the lesser material fine powder of particle, and tail gas is discharged into bag filter and is dusted processing,
The material fine powder in tail gas is collected, then by the purified air filtration of bag filter, discharge；
Step 6): the material fine powder collected in step 5) is done by pipeline into multi-stage spray drying tower by spraying
Dry, agglomeration is granulated, and obtains micro/nano level microcapsule granule dry for the first time, and micro/nano level microcapsule granule dry for the first time is added to
Dry in integrated fluidized bed built in multi-temperature zone, cooling, agglomeration is granulated, and it is micro- to obtain the finished product micro/nano level that particle diameter is 70nm
Capsule particle；Or directly the material fine powder collected in step 5) is transported to built in multi-temperature zone and is dried in integrated fluidized bed, is cooling,
Agglomeration is granulated, and obtains finished product micro/nano level microcapsule granule, take directly the material fine powder collected in step 5) is transported to it is more
When dry in integrated fluidized bed built in warm area, cooling, agglomeration is granulated, two ways can be divided into: one, will be received in step 5)
The material fine powder of collection is transported to the high-temperature region built in multi-temperature zone in integrated fluidized bed, then handles by middle warm area, low-temperature space,
Obtain the finished product micro/nano level microcapsule granule that particle diameter is 70nm；Two, the material fine powder collected in step 5) is transported to more
Low-temperature space processing built in warm area in integrated fluidized bed, obtains the finished product micro/nano level microcapsule granule that particle diameter is 70nm,
A variety of processing steps, flexibility are high.
Embodiment 3
It is as shown in Figs. 1-2 a kind of specific embodiment of the preparation method of air-flow nanometer, which includes following step
It is rapid:
Step 1): material is added in emulsion chamber with the speed of 500km/h, with the stirring of 2000rpm revolving speed, emulsification
35min, then be placed under the pressure conditions of 20Mpa, homogeneous 30min is sheared, emulsifying materials liquid is obtained；
Step 2): the biofilm filtration that the emulsifying materials liquid that step 1) is obtained is 500um through pore size filter obtains micro-nano
Otherwise meter level emulsion, does not pass through biological membrane aperture if 3) emulsifying materials liquid is entered step by biofilm filtration aperture
Drop flowed back into through pipeline under the pressure conditions of 20Mpa and continue to shear homogeneous, the biomembrane mistake for being 500um using filter opening diameter
Filter obtains micro/nano level emulsion；
Step 3): the micro/nano level emulsion that step 2) obtains is added to multi-stage spray drying with the speed of 500km/h
In tower, it is passed through dry hot-air from multi-stage spray drying tower upper end, is spray-dried, agglomeration granulation, obtains drying for the first time
Micro/nano level microcapsule granule, and from the dry hot-air of multi-stage spray drying tower upper end discharge, spray-drying process, it is sprayed from multistage
It is 200 DEG C that mist drying tower upper end, which is passed through dry hot air temperature, and multi-stage spray drying tower upper end is discharged dry hot air temperature and is
100℃；
Step 4): integrated fluidized bed built in multi-temperature zone includes 350 DEG C of high-temperature region, 230 DEG C of middle warm area, 100 DEG C
Low-temperature space is passed through dry hot-air into fluidized bed integrated built in multi-temperature zone, the micro-nano dry for the first time that step 3) is obtained
Meter level microcapsule granule is added sequentially to integrated fluidized bed high temperature area, middle warm area, low-temperature space built in multi-temperature zone, dry, is cooling,
Agglomeration is granulated, and is set the product exit collection in low-temperature space, is obtained the finished product micro/nano level micro-capsule that particle diameter is 20um
Hot-air dry in fluidized bed integrated built in multi-temperature zone is discharged grain from multi-stage spray drying tower upper end；
Step 5): the dry air being discharged in step 3), step 4) is passed through in cyclone separator, in cyclone separator
Cyclonic separation dedusting is carried out, obtains the lesser material fine powder of particle, and tail gas is discharged into bag filter and is dusted processing,
The material fine powder in tail gas is collected, then by the purified air filtration of bag filter, discharge；
Step 6): the material fine powder collected in step 5) is done by pipeline into multi-stage spray drying tower by spraying
Dry, agglomeration is granulated, and obtains micro/nano level microcapsule granule dry for the first time, and micro/nano level microcapsule granule dry for the first time is added to
Dry in integrated fluidized bed built in multi-temperature zone, cooling, agglomeration is granulated, and it is micro- to obtain the finished product micro/nano level that particle diameter is 20um
Capsule particle；Or directly the material fine powder collected in step 5) is transported to built in multi-temperature zone and is dried in integrated fluidized bed, is cooling,
Agglomeration is granulated, and obtains finished product micro/nano level microcapsule granule, take directly the material fine powder collected in step 5) is transported to it is more
When dry in integrated fluidized bed built in warm area, cooling, agglomeration is granulated, two ways can be divided into: one, will be received in step 5)
The material fine powder of collection is transported to the high-temperature region built in multi-temperature zone in integrated fluidized bed, then handles by middle warm area, low-temperature space,
Obtain the finished product micro/nano level microcapsule granule that particle diameter is 20um；Two, the material fine powder collected in step 5) is transported to more
Low-temperature space processing built in warm area in integrated fluidized bed, obtains the finished product micro/nano level microcapsule granule that particle diameter is 20um,
A variety of processing steps, flexibility are high.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
It imitates embodiment and is applied to other fields, but without departing from the technical solutions of the present invention, according to the technical essence of the invention
Any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the protection scope of technical solution of the present invention.
Claims (6)
1. a kind of preparation method of air-flow nanometer, which is characterized in that the preparation method includes the following steps:
Step 1): material is added in emulsion chamber with the speed of 1-500km/h, with the stirring of 30-2000rpm revolving speed, emulsification 15-
50min, then be placed under the pressure conditions of 1-20Mpa, homogeneous 15-60min is sheared, emulsifying materials liquid is obtained；
Step 2): the biofilm filtration that the emulsifying materials liquid that step 1) is obtained is 1-500um through pore size filter obtains micro-nano
Grade emulsion；If 3) emulsifying materials liquid enters step by biofilm filtration aperture, otherwise, flows back into 1-20Mpa through pipeline
Pressure conditions under continue shear homogeneous, using filter opening diameter be 1-500um biofilm filtration, obtain micro/nano level emulsification
Liquid；
Step 3): the micro/nano level emulsion that step 2) obtains is added to multi-stage spray drying tower with the speed of 1-500km/h
In, it is passed through dry hot-air from multi-stage spray drying tower upper end, is spray-dried, agglomeration granulation, obtains the micro- of drying for the first time
Nanoscale microcapsule granule, and dry hot-air is discharged from multi-stage spray drying tower upper end；
Step 4): the micro/nano level microcapsule granule dry for the first time that step 3) is obtained is added to integrated fluidisation built in multi-temperature zone
In bed, dry hot-air is passed through into fluidized bed integrated built in multi-temperature zone, dry, cooling, agglomeration is granulated, and obtains finished product micro-nano
Meter level microcapsule granule, dry hot-air is discharged from multi-stage spray drying tower upper end in integrated fluidized bed built in the multi-temperature zone；
Step 5): the dry air being discharged in step 3), step 4) is passed through in cyclone separator, is carried out in cyclone separator
Cyclonic separation dedusting obtains the lesser material fine powder of particle, and tail gas is discharged into bag filter and is dusted processing, collects
Material fine powder in tail gas, then by the purified air filtration of bag filter, discharge；
Step 6): the material fine powder collected in step 5) is spray-dried by pipeline into multi-stage spray drying tower,
Agglomeration is granulated, and obtains micro/nano level microcapsule granule dry for the first time, micro/nano level microcapsule granule dry for the first time is added to more
Dry in integrated fluidized bed built in warm area, cooling, agglomeration is granulated, and obtains finished product micro/nano level microcapsule granule, or directly will step
Rapid 5) the middle material fine powder collected is transported to dry in integrated fluidized bed, cooling, agglomeration built in multi-temperature zone and is granulated, acquisition finished product
Micro/nano level microcapsule granule.
2. a kind of preparation method of air-flow nanometer according to claim 1, it is characterised in that: the built-in integration of the multi-temperature zone
Formula fluidized bed includes high-temperature region, middle warm area, low-temperature space, and the micro/nano level microcapsule granule dry for the first time is added sequentially to mostly warm
Integrated fluidized bed high temperature area, middle warm area, low-temperature space built in area, be set low-temperature space product exit collection, obtain at
Product micro/nano level microcapsule granule.
3. a kind of preparation method of air-flow nanometer according to claim 2, it is characterised in that: the high-temperature region temperature is
300-380 DEG C, the middle warm area temperature is 200-260 DEG C, and the low-temperature space temperature is 80-100 DEG C.
4. a kind of preparation method of air-flow nanometer according to claim 1, it is characterised in that: the multi-stage spray drying tower
It is 150-200 DEG C that upper end, which is passed through dry hot air temperature, and multi-stage spray drying tower upper end is discharged dry hot air temperature and is
60-100℃。
5. a kind of preparation method of air-flow nanometer according to claim 2, it is characterised in that: will directly be collected in step 5)
Material fine powder when being transported to integrated fluidized bed built in multi-temperature zone, the material fine powder of collection is transported to integration built in multi-temperature zone
High-temperature region in formula fluidized bed, or the material fine powder of collection is transported to the low-temperature space built in multi-temperature zone in integrated fluidized bed.
6. a kind of preparation method of air-flow nanometer according to claim 1, it is characterised in that: obtained in step 4) or step 6)
The finished product micro/nano level microcapsule granule diameter obtained is 100nm-20um.
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| CN108927080A (en) * | 2018-10-11 | 2018-12-04 | 本溪恒康制药有限公司 | The equipment for preparing lipid microspheres |
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