CN114984613A - Plant polysaccharide extraction and drying process and device for implementing process - Google Patents

Plant polysaccharide extraction and drying process and device for implementing process Download PDF

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Publication number
CN114984613A
CN114984613A CN202210601552.2A CN202210601552A CN114984613A CN 114984613 A CN114984613 A CN 114984613A CN 202210601552 A CN202210601552 A CN 202210601552A CN 114984613 A CN114984613 A CN 114984613A
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extraction
spray drying
frequency
ultrasonic
drying tower
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朱海
娄慧敏
任德超
章志成
陈丽君
段瑶
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Qingdao Anmeirui Biotechnology Industrial Park Co ltd
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Qingdao Anmeirui Biotechnology Industrial Park Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0261—Solvent extraction of solids comprising vibrating mechanisms, e.g. mechanical, acoustical
    • B01D11/0265—Applying ultrasound
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/16—Evaporating by spraying
    • B01D1/18—Evaporating by spraying to obtain dry solids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0003—General processes for their isolation or fractionation, e.g. purification or extraction from biomass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D2011/002—Counter-current extraction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • Molecular Biology (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

The invention provides a plant polysaccharide extraction and drying process and a device for implementing the process, and belongs to the technical field of foods. The invention adopts the stepless variable frequency ultrasonic wave low-temperature countercurrent extraction combined with the anti-sticking spray drying to extract the plant polysaccharide in the raw materials, the frequency of the stepless variable frequency ultrasonic wave is adjusted in real time along with the change of the sugar content of the extracting solution in the extraction process, and in addition, a polytetrafluoroethylene anti-sticking coating is arranged on the inner wall of the adopted spray drying tower in the spray drying process. The process not only maximizes the ultrasonic efficiency, improves the extraction rate of the raw materials, avoids the coking of the plant polysaccharide in the extraction process, but also avoids the wall sticking phenomenon after extraction, and improves the powder yield.

Description

Plant polysaccharide extraction and drying process and device for implementing process
Technical Field
The invention belongs to the technical field of food, and particularly relates to a plant polysaccharide extraction and drying process and a device for implementing the process.
Background
The effective components of plant are mainly plant polysaccharide, protein, soap and lipid. The plant polysaccharide accounts for a great proportion, and the prior art for extracting the plant polysaccharide mainly comprises an extraction method, a microwave extraction method and an ultrasonic extraction method. The extraction method is to extract the polysaccharide in the materials by soaking with a solvent, and the extraction efficiency is low. The microwave extraction method is to heat cells by microwaves, so that the temperature inside the cells is quickly increased, the internal pressure is increased, and the cell structure is damaged, thereby realizing the extraction of effective components in the raw materials, but the instantaneous high temperature inside the cells caused by the microwaves can cause the polysaccharide inside the cells to be damaged.
The ultrasonic extraction method mainly comprises fixed-frequency ultrasonic extraction, wherein the fixed-frequency ultrasonic extraction has the same frequency in the extraction process, but when the content of the plant polysaccharide in an extracting solution is higher, the fixed-frequency ultrasonic extraction can cause coking of the plant polysaccharide, so that the activity and the efficacy of the plant polysaccharide are influenced. In addition, in the existing drying process of the plant polysaccharide, polysaccharide solution is dispersed into small droplets by a centrifugal machine on a spray drying tower, and the small droplets are mixed with hot air to realize instantaneous high-temperature drying, but the later polysaccharide is liquefied and adhered to the tower wall of the spray drying tower, so that the powder yield is reduced.
Disclosure of Invention
The invention provides a plant polysaccharide extraction and drying process and a device for implementing the process, wherein the plant polysaccharide in raw materials is extracted by adopting stepless variable-frequency ultrasonic low-temperature countercurrent extraction combined with anti-sticking spray drying, so that the maximization of the ultrasonic effect is realized, the extraction rate of the raw materials is improved, the coking of the polysaccharide during the extraction process is avoided, the wall sticking phenomenon after extraction is avoided, and the powder yield is improved.
In order to achieve the aim, the invention discloses a plant polysaccharide extraction and drying process, which adopts the stepless variable frequency type ultrasonic wave low-temperature countercurrent extraction combined with the anti-sticking spray drying to extract the plant polysaccharide in the raw materials, wherein the frequency of the stepless variable frequency type ultrasonic wave is adjusted in real time along with the change of the sugar content of an extracting solution in the extraction process, and in the spray drying process, a polytetrafluoroethylene anti-sticking coating is arranged on the inner wall of an adopted spray drying tower;
wherein the relation between the ultrasonic frequency and the sugar content of the extractive solution is that the ultrasonic frequency f is 40- (the sugar content of the extractive solution D is multiplied by 1000) 2 ×6000。
In the above scheme, plant polysaccharide can be extracted from plants selected from radix astragali, Poria, herba Dendrobii, rhizoma Polygonati, fructus Lycii, herba Saussureae Involueratae, radix Puerariae, Mori fructus, Bulbus Lilii, fresh lalang grass rhizome, fresh rhizoma Phragmitis, Bulbus Allii Macrostemi, radix Codonopsis, and Maitake Mushroom.
As optimization, the medium in the stepless variable frequency type ultrasonic low-temperature countercurrent extraction is water, and the ratio of the raw material to the water is 1: (5-8), the low temperature in the stepless frequency conversion type ultrasonic low-temperature countercurrent extraction is 30-60 ℃, and the extraction time is 2-4 h.
Preferably, the frequency conversion range of the stepless frequency conversion type ultrasonic wave generating device for implementing the stepless frequency conversion type ultrasonic wave low-temperature countercurrent is 25Hz-40 Hz.
The air inlet temperature of the spray drying is 160-210 ℃ and the air outlet temperature is 60-90 ℃ as the optimization.
The invention also discloses a stepless frequency conversion type ultrasonic generating device for implementing the process, which comprises:
an extraction tube;
the solvent port is arranged at one end of the extraction tube;
the raw material port is arranged at the other end of the extraction pipe;
the level of the raw material port is lower than that of the solvent port;
the auger is arranged inside the extraction pipe and used for conveying the raw material at the raw material port into the extraction pipe and conveying the medium entering at the solvent port in the reverse direction;
the frequency conversion ultrasonic generator is arranged on two sides of the extraction tube;
and the online saccharimeter is arranged on the extraction pipe and used for carrying out data monitoring on the sugar degree of the extracting solution in the extraction pipe and feeding back the sugar degree data to the variable-frequency ultrasonic generator so as to adjust the frequency of the variable-frequency ultrasonic generator.
Preferably, the extraction pipe is provided with a sight glass and a cleaning water pipe.
Preferably, the variable-frequency ultrasonic generators are provided with a plurality of groups and are uniformly distributed on the extraction tube, and each group of variable-frequency ultrasonic generators is correspondingly provided with an online saccharimeter.
The invention also discloses a spray drying tower for implementing the process, which comprises the following components:
a spray drying tower;
the anti-sticking coating is arranged in the cylinder wall of the spray drying tower;
the thickness of the anti-sticking coating is 10-100 microns.
Preferably, the anti-sticking coating is polytetrafluoroethylene.
As optimization, the method further comprises the following steps:
the air inlet channel and the feeding channel are arranged on the spray drying tower;
the air inlet channel is provided with a heater, a filter screen and a blower and is used for drying the materials as a drying air source after air is filtered, heated and pressurized;
the feeding channel is provided with a liquid storage tank, a filter screen and a pump and is used for proportioning, filtering and pressurizing materials and then pumping the materials into a spray drying tower to be spray-dried with a drying air source;
the centrifugal machine is arranged at the interface of the feeding channel and the spray drying tower;
and the separation cylinder is arranged outside the outlet end of the spray drying tower and used for extracting the spray-dried materials through a draught fan.
Compared with the prior art, the invention has the following beneficial effects:
the invention relates to a plant polysaccharide extraction and drying process, which adopts stepless variable-frequency ultrasonic low-temperature countercurrent extraction combined with anti-sticking spray drying to extract plant polysaccharide in raw materials, improves the ultrasonic effect, reduces the energy consumption, prevents the plant polysaccharide from coking and influencing the activity and the effect of the plant polysaccharide, and can effectively prevent the plant polysaccharide from sticking and improve the powder yield of a final finished product by spraying polytetrafluoroethylene in a spray drying tower.
The invention relates to a stepless variable-frequency ultrasonic generating device, which particularly realizes the circulating dynamic countercurrent extraction of a medium and a raw material in an ultrasonic extraction tube through ultrasonic frequency conversion, and simultaneously adjusts the ultrasonic frequency in real time according to the sugar degree change in the tube, thereby realizing the maximization of the ultrasonic efficacy and avoiding the coking phenomenon of plant polysaccharide.
The invention relates to a spray drying tower, which optimizes the whole spray drying process, and a smooth coating is formed by spraying polytetrafluoroethylene on the inner surface of the spray drying tower, so that the adhesion of plant polysaccharide can be effectively prevented, and the powder yield of the final finished product is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a top view of a variable frequency ultrasonic wave generator according to the present invention;
FIG. 2 is a front view of the variable frequency ultrasonic wave generator of the present invention;
FIG. 3 is a flow chart of the anti-sticking spray drying of the present invention;
FIG. 4 is a graph showing the relationship between the frequency of ultrasonic waves and the sugar degree of an extract liquid in the present invention;
description of the drawings: 1. a raw material port; 2. a solvent port; 3. a variable frequency ultrasonic generator; 4. a sight glass; 5. an online saccharimeter; 6. a packing auger; 7. cleaning the water pipe; 8. a spray drying tower; 9. a separation cylinder; 10. an induced draft fan; 11. an intake passage; 12. a feed channel; 13. a centrifuge; 14. a heater; 15. a filter screen; 16. a blower; 17. a pump; 18. a liquid storage tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments provided by the present invention, belong to the protection scope of the present invention.
In the following examples, the influence of the method provided by the present invention on the extraction rate and the flour yield will be illustrated by using astragalus root as an example, but the following examples are not intended to limit the implementation and use of the present invention, but only to better illustrate the present invention. It is understood that those skilled in the art can apply the above method to the extraction process of various plant polysaccharides, such as poria cocos, dendrobium officinale, polygonatum sibiricum, lycium barbarum, saussurea involucrate, pueraria lobata, mulberry, lily, fresh cogongrass rhizome, fresh reed rhizome, allium macrostemon, codonopsis pilosula, grifola frondosa and other plants, by means of feasible adjustment and change according to the method provided by the present invention.
Example 1:
selecting the astragalus membranaceus with better quality, and cleaning the astragalus membranaceus to remove dust on the surface.
Under the condition of 60 ℃, pure water is used according to the solid-to-liquid ratio of 1: 6, carrying out ultrasonic extraction on the astragalus for 2.5h, and adjusting the frequency of a variable-frequency ultrasonic generator by an online saccharimeter during the ultrasonic extraction, wherein the relationship between the ultrasonic frequency and the sugar content of the extracting solution is that the ultrasonic frequency f is 40- (the sugar content of the extracting solution is Dx 1000) 2 X 6000, as shown in FIG. 4.
According to calculation, the extraction rate of the astragalus polysaccharide is 83.4 percent, and the astragalus polysaccharide has no burnt flavor.
After extraction, the extracting solution is concentrated into extractum with 10 percent of sugar content by using a vacuum concentration technology, and then spray drying is carried out on the extractum, the spraying thickness of polytetrafluoroethylene in a spray drying tower is 20 micrometers, the air inlet temperature of the spray drying is 180 ℃, the air outlet temperature of the spray drying is 80 ℃, and after the spray drying is finished, the powder yield of the finished product of the embodiment is 86.3 percent by calculation.
Example 2:
selecting the astragalus membranaceus with better quality, and cleaning the astragalus membranaceus to remove dust on the surface.
At the temperature of 45 ℃, pure water is used according to the solid-liquid ratio of 1: 5, carrying out ultrasonic extraction on the astragalus for 2 hours, and adjusting the frequency of a variable-frequency ultrasonic generator by an online glucometer during the ultrasonic extractionWherein the relationship between the ultrasonic frequency and the sugar content of the extractive solution is that the ultrasonic frequency f is 40- (the sugar content of the extractive solution D × 1000) 2 ×6000。
According to calculation, the extraction rate of the astragalus polysaccharide is 60.3 percent, and the astragalus polysaccharide has no burnt flavor.
After extraction is finished, the extracting solution is concentrated into extractum with the sugar content of 10% by using a vacuum concentration technology, then spray drying is carried out on the extractum, the spraying thickness of the polytetrafluoroethylene in a spray drying tower is 10 micrometers, the air inlet temperature of the spray drying tower is 210 ℃, the air outlet temperature of the spray drying tower is 90 ℃, and after the spray drying is finished, the powder yield of the finished product in the embodiment is 72.6% by calculation.
Example 3:
selecting the astragalus membranaceus with better quality, and cleaning the astragalus membranaceus to remove dust on the surface.
At the temperature of 60 ℃, pure water is used according to the solid-liquid ratio of 1: 8, ultrasonically extracting radix astragali for 4h, and adjusting the frequency of a variable-frequency ultrasonic generator by an online saccharimeter, wherein the relationship between the ultrasonic frequency and the sugar content of the extracting solution is that the ultrasonic frequency f is 40- (the sugar content of the extracting solution is Dx 1000) 2 ×6000。
According to calculation, the extraction rate of the astragalus polysaccharide is 85.8 percent, and the astragalus polysaccharide has no burnt taste.
After extraction, the extracting solution is concentrated into extractum with 10 percent of sugar content by using a vacuum concentration technology, and then spray drying is carried out on the extractum, the spraying thickness of polytetrafluoroethylene in a spray drying tower is 100 micrometers, the air inlet temperature of the spray drying is 160 ℃, the air outlet temperature of the spray drying is 60 ℃, and after the spray drying is finished, the powder yield of the finished product of the embodiment is 80.2 percent by calculation.
Comparative example 1:
selecting the astragalus membranaceus with better quality, and cleaning the astragalus membranaceus to remove dust on the surface.
The other conditions were the same as in example 1 except that: the ultrasonic frequency was fixed at 35Hz, and the calculated extraction rate of Astragalus polysaccharides was 74.1%, but there was a slightly burnt smell in the extract.
After extraction, the extracting solution is concentrated into extract with 10% of sugar content by using a vacuum concentration technology, and then spray drying is carried out on the extract, the spray drying tower of the process does not carry out anti-sticking coating treatment, other conditions are the same as those of the example 1, and after the spray drying is finished, the powder yield of the finished product is calculated to be 76.8%.
Comparing example 1 with comparative example 1, it can be seen that the process reduces damage to astragalus polysaccharides under the condition of ensuring the extraction rate of astragalus polysaccharides, and can effectively prevent astragalus polysaccharides from sticking to the wall, thereby greatly improving the powdering rate of astragalus polysaccharides.
Example 4:
as shown in fig. 1 and 2, a stepless frequency conversion type ultrasonic generator for implementing the above process, wherein the extraction pipe has an inclined structure; the solvent port 2 is arranged at one end of the extraction tube; the raw material port 1 is arranged at the other end of the extraction tube; the horizontal height of the raw material port 1 is lower than that of the solvent port 2; the auger 6 is arranged inside the extraction pipe; the variable frequency ultrasonic generator 3 is arranged on two sides of the extraction tube; the online saccharimeter 5 is arranged above the extraction pipe.
In the above scheme, the extraction pipe can be provided with the sight glass 4 and the cleaning water pipe 7, the state in the extraction pipe can be observed by adding the sight glass, and the cleaning water pipe is used for cleaning.
In the above scheme, the variable frequency ultrasonic generators 3 can be further provided with a plurality of groups and are uniformly distributed on the extraction tube, each group of variable frequency ultrasonic generators 3 is correspondingly provided with one online saccharimeter 5, the purpose is to ensure the reliability and accuracy of the detection of the saccharinity, and the variable frequency ultrasonic generators of each group are adjusted in real time through the arrangement of the plurality of groups of structures.
The variable-frequency ultrasonic generators 3 are arranged on two sides of the extraction pipe, the online type sugar meter 5 is arranged above the extraction pipe, the sugar degree in the extraction pipe is detected in real time, signals are transmitted to the variable-frequency ultrasonic generators 5, the ultrasonic frequency is controlled, the viewing mirror 4 is arranged on the upper portion of the extraction pipe, the extraction condition in the extraction pipe can be observed at any time, as shown in figure 2, the flood dragon 6 is arranged at the center of the extraction pipe and driven by a motor, solid raw materials are conveyed from the raw material port 1 through the rotation of the flood dragon 6, and solvent enters the extraction pipe from the solvent port 2.
Example 5:
a spray drying tower for implementing the process comprises a spray drying tower 8; the anti-sticking coating is arranged in the cylinder wall of the spray drying tower 8; the thickness of the anti-sticking coating is 10-100 microns.
Further, the anti-sticking coating is polytetrafluoroethylene.
As shown in fig. 3, further comprises an air inlet channel 11 and a feed channel 12 provided on the spray drying tower 8;
the air inlet channel 11 is provided with a heater 14, a filter screen 15 and a blower 16, and is used for drying the material as a drying air source after air filtration, heating and pressurization.
The feed channel 12 is provided with a liquid storage tank 18, a filter screen and a pump 17, and is used for proportioning, filtering and pressurizing materials, and pumping the materials into a spray drying tower to be spray-dried with a drying air source.
And the centrifugal machine 13 is arranged at the interface of the feeding channel 12 and the spray drying tower 8 and is used for quickly centrifuging and scattering the materials to form an atomization effect and drying the materials with a drying air source.
And the separating cylinder 9 is arranged outside the outlet end of the spray drying tower 8 and extracts the spray-dried materials through a draught fan.
As shown in fig. 3, after the extraction liquid is subjected to the stepless variable frequency ultrasonic low-temperature countercurrent extraction, the extraction liquid is concentrated into an extract by using a vacuum concentration technology, and then is pumped into a spray drying tower 8 through a feed channel 12, and is separated and scattered through a centrifuge 13, and simultaneously, the spray drying operation is performed on the pumped material through an air inlet channel 11 by filtering, heating and pressurizing air. The dried material falls into the bottom of the spray drying tower 8, is collected into a separation cylinder 9 under the action of an induced draft fan 10, and starts to carry out the next process treatment.

Claims (10)

1. The plant polysaccharide extraction and drying process is characterized in that the plant polysaccharide in raw materials is extracted by adopting stepless variable frequency type ultrasonic low-temperature countercurrent extraction combined with anti-sticking spray drying, the frequency of the stepless variable frequency type ultrasonic is adjusted in real time along with the change of the sugar content of an extracting solution in the extraction process, and in the spray drying process, a polytetrafluoroethylene anti-sticking coating is arranged on the inner wall of an adopted spray drying tower;
wherein the relation between the ultrasonic frequency and the sugar content of the extractive solution is that the ultrasonic frequency f is 40- (the sugar content of the extractive solution D is multiplied by 1000) 2 ×6000。
2. The process according to claim 1, wherein the medium in the stepless variable frequency type ultrasonic low-temperature countercurrent extraction is water, and the ratio of the raw material to the water is 1: (5-8);
the low temperature in the stepless frequency conversion type ultrasonic low-temperature countercurrent extraction is 30-60 ℃, and the extraction time is 2-4 h.
3. The process according to claim 1, wherein the ultrasonic generator is a device for low-temperature countercurrent ultrasonic generator with stepless frequency conversion, and the frequency conversion range is 25-40 Hz.
4. The process of claim 1, wherein the inlet air temperature for spray drying is 160-210 ℃ and the outlet air temperature is 60-90 ℃.
5. The device for generating ultrasound waves of the stepless variable frequency type for carrying out the process according to any one of claims 1 to 4, comprising:
an extraction tube;
the solvent port is arranged at one end of the extraction tube;
the raw material port is arranged at the other end of the extraction pipe;
the horizontal height of the raw material port is lower than that of the solvent port;
the auger is arranged inside the extraction pipe and used for conveying the raw materials at the raw material port into the extraction pipe and conveying the media entering at the solvent port in the reverse direction;
the frequency conversion ultrasonic generator is arranged on two sides of the extraction tube;
and the online saccharimeter is arranged on the extraction pipe and used for carrying out data monitoring on the sugar degree of the extracting solution in the extraction pipe and feeding back the sugar degree data to the variable-frequency ultrasonic generator so as to adjust the frequency of the variable-frequency ultrasonic generator.
6. The ultrasonic generator according to claim 5, wherein the extraction tube is provided with a sight glass and a cleaning water tube.
7. The device of claim 5, wherein the ultrasonic generators are distributed on the extraction tube in multiple groups, and each group of ultrasonic generators has an online glucometer.
8. A spray drying tower for carrying out the process according to any one of claims 1 to 4, comprising:
a spray drying tower;
the anti-sticking coating is arranged in the cylinder wall of the spray drying tower;
the thickness of the anti-sticking coating is 10-100 microns.
9. A spray drying tower according to claim 8, wherein the anti-stick coating is polytetrafluoroethylene.
10. The spray drying tower of claim 8, further comprising:
the air inlet channel and the feeding channel are arranged on the spray drying tower;
the air inlet channel is provided with a heater, a filter screen and a blower and is used for drying the materials as a drying air source after air is filtered, heated and pressurized;
the feeding channel is provided with a liquid storage tank, a filter screen and a pump and is used for proportioning, filtering and pressurizing materials and then pumping the materials into a spray drying tower to be spray-dried with a drying air source;
the centrifugal machine is arranged at the interface of the feeding channel and the spray drying tower and is used for quickly centrifuging and scattering the materials to form an atomization effect and drying the materials with a drying air source;
and the separation cylinder is arranged outside the outlet end of the spray drying tower and used for extracting the spray-dried materials through a draught fan.
CN202210601552.2A 2022-05-30 2022-05-30 Plant polysaccharide extraction and drying process and device for implementing process Pending CN114984613A (en)

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CN205412309U (en) * 2016-03-08 2016-08-03 安徽省太和县鹏宇中药材有限公司 Inverter type's homogeneous phase ultrasonic wave platycodin draws equipment
CN106749743A (en) * 2017-01-23 2017-05-31 同舟纵横（厦门）流体技术有限公司 A kind of celestial grass Polyose extraction system and extraction process
CN206473857U (en) * 2017-02-10 2017-09-08 江西草珊瑚润喉产业有限公司 A kind of Chinese herbal medicine percolation ultrasonic extraction element
CN107474056A (en) * 2017-09-29 2017-12-15 贵州天豪民族药业有限公司 A kind of ultrasonic extraction process of qinghaosu
CN208022937U (en) * 2018-03-02 2018-10-30 曲阜师范大学 A kind of kelp polysaccharide sulfate extraction element
CN213159480U (en) * 2020-08-13 2021-05-11 福建名忠食品有限公司 High-purity celestial grass polysaccharide rapid extraction device
CN113425760A (en) * 2021-07-23 2021-09-24 江苏大学 Method for extracting and separating effective components from liquorice
CN216080918U (en) * 2021-08-29 2022-03-18 无锡市禾明干燥设备有限公司 Wall-sticking-preventing spray drying device

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