CN114411262A - Nanocrystal collection device is used to supercritical carbon dioxide nanocrystal preparation - Google Patents

Nanocrystal collection device is used to supercritical carbon dioxide nanocrystal preparation Download PDF

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CN114411262A
CN114411262A CN202111543080.1A CN202111543080A CN114411262A CN 114411262 A CN114411262 A CN 114411262A CN 202111543080 A CN202111543080 A CN 202111543080A CN 114411262 A CN114411262 A CN 114411262A
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collection
carbon dioxide
nanocrystal
outer side
supercritical carbon
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张绍强
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Xinyi Vanward Mining Co ltd
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Xinyi Vanward Mining Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B35/00—Apparatus not otherwise provided for, specially adapted for the growth, production or after-treatment of single crystals or of a homogeneous polycrystalline material with defined structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0018—Evaporation of components of the mixture to be separated
    • B01D9/0027—Evaporation of components of the mixture to be separated by means of conveying fluid, e.g. spray-crystallisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/005—Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0063—Control or regulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00—Manufacture or treatment of nanostructures

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  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Manufacturing & Machinery (AREA)
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  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
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Abstract

The invention relates to the technical field of supercritical fluid, and discloses a nanocrystal collecting device for preparing supercritical carbon dioxide nanocrystals. This nanocrystal collection device is used in preparation of supercritical carbon dioxide nanocrystal, through the driving motor who starts the inside of crystallization collection mechanism, driving motor drives the synchronous rotation of the connecting axle that its outside is connected immediately, the connecting axle drives the synchronous rotation of arc gear then, the engaged rotating gear in the arc gear outside then begins to rotate in step, the outside of rotating gear is connected with the axostylus axostyle, the synchronous motion then of axostylus axostyle, drive the synchronous motion of the collection board that its outside is connected immediately, the outside of collection board is provided with the collection latch, collect latch then with the inner wall contact of separation cauldron, strike off the inner wall of separation cauldron, strike off the nanocrystal of adhesion on its inner wall, carry out unified collection to the nanocrystal.

Description

Nanocrystal collection device is used to supercritical carbon dioxide nanocrystal preparation
Technical Field
The invention relates to the technical field of supercritical fluid, in particular to a nanocrystal collecting device for preparing supercritical carbon dioxide nanocrystal.
Background
The supercritical fluid technology is a brand new biological, medical and chemical engineering technology. The method is widely applied to various fields of natural substance extraction, ultra-micro powder particle size transformation, porous material preparation and the like, and the supercritical carbon dioxide fluid technology takes carbon dioxide as a carrier, the critical temperature is 31 ℃, the pressure is about 7.3MPa, supercritical carbon dioxide fluid is used as a medium to replace volatile organic solvent to dissolve and separate solute, the carbon dioxide fluid in the supercritical state has the special physical state that the density is similar to that of liquid and the viscosity is similar to that of gas, has high solubility to natural substances and changes rapidly along with the changes of pressure and temperature, the self-diffusion coefficient of the material is 10-100 times of that of liquid, the material has excellent fluidity and transfer performance, therefore, the method has the advantages that the solubility of certain substances is selected, the solvent and the supercritical carbon dioxide are very easy to separate, and the method is particularly suitable for dissolving and separating fat-soluble, high-boiling-point and thermosensitive substances. The nanocrystal collecting device for preparing the supercritical carbon dioxide nanocrystals integrates a supercritical carbon dioxide fluid technology, a solvent resisting technology and a rapid expansion technology, and the prepared nanocrystals have the advantages of average particle size of below 200nm, most particle sizes of less than 100nm, small particle size, uniform distribution and regular shape. And can be successfully applied to the fields of pharmacy, food, cosmetics, macromolecules and the like.
Therefore, in order to solve these problems, a nanocrystal collecting device for supercritical carbon dioxide nanocrystals is required.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a nanocrystal collecting device for preparing supercritical carbon dioxide nanocrystals, which has the advantages that the average particle size of the prepared nanocrystals is below 200nm, the most particle sizes are less than 100nm, the particle sizes are small, the distribution is uniform, and the shapes are regular.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a supercritical carbon dioxide nanocrystal collection device for nanocrystalline preparation, includes the device main part, feed mechanism is installed on the top of device main part, feed mechanism's top is provided with the feed inlet, the outside of feed inlet is connected with feedstock channel, feedstock channel's the outside is connected with the dissolution kettle, the inside movable mounting of dissolution kettle has drive axle center, the outside in drive axle center is connected with the stirring rake, the outside of dissolution kettle is connected with discharging channel, discharging channel keeps away from the one end of dissolution kettle and is connected with the nozzle.
The inside of device main part is provided with the separation cauldron, the inside of separation cauldron just is located the bottom and is provided with refrigerating system, refrigerating system's the outside is connected with connecting cable, the one end that refrigerating system was kept away from to connecting cable is connected with the connector, the inside of separation cauldron just is located the bottom and is provided with heat transfer system, the top of connector is connected with temperature control system, the one end fixed mounting that temperature control system kept away from the connector has the crystallization ware.
Preferably, the separation kettle is fixedly provided with a crystallization collection mechanism inside, the crystallization collection mechanism is fixedly provided with a driving motor inside, the driving motor is connected with a connecting shaft outside, the connecting shaft outside is connected with an arc gear, the arc gear outside is engaged with a rotating gear, the rotating gear outside is connected with a shaft lever, one end of the shaft lever far away from the rotating gear is connected with a shaft center block, the shaft center block outside is connected with a collection plate, and the collection plate is fixedly provided with a collection latch on the outer surface.
Preferably, the collecting plate is a horizontal long strip, is made of flexible materials, and can be bent and deformed.
Preferably, the collecting latch is semicircular and made of flexible rubber, and the collecting latch is attached to the inner wall of the separation kettle.
Preferably, the two groups of the rotating gears are symmetrically arranged, the middle point of the arc-shaped gear is taken as a symmetric base point, and the two groups of the opposite rotating gears are meshed and overlapped at two sides of the arc-shaped gear.
Preferably, the collecting plate is provided with two symmetrical groups which are supported by four groups of shaft rods.
Has the advantages that:
1. the nanocrystal collecting device for preparing the supercritical carbon dioxide nanocrystals is characterized in that a worker adds a powder material into a feed inlet in advance, the powder material passes through the feed inlet and a feed channel and then enters a dissolving kettle, a supercritical carbon dioxide fluid is stored in the dissolving kettle in advance, the powder material is mixed with the supercritical carbon dioxide fluid in the dissolving kettle, a driving shaft center drives a stirring paddle to synchronously rotate, the stirring paddle is continuously stirred, so that the dissolution of the powder material and the supercritical carbon dioxide fluid is accelerated and rapidly dissolved in the supercritical carbon dioxide fluid, after the stirring and the dissolution, the mixture passes through a discharge channel and is sprayed out from a nozzle and then enters a separating kettle, a refrigeration system and a heat exchange system in the separating kettle are controlled, the temperature regulation in the separating kettle is changed, the supercritical carbon dioxide fluid in the separation kettle is gasified, the solute is precipitated, and the solute is attached to the inner wall of the separation kettle in the form of nano crystals, so that the nano crystals are obtained, and the aim of manufacturing the high-quality nano crystals is fulfilled.
2. This nanocrystal collection device is used in preparation of supercritical carbon dioxide nanocrystal, through the driving motor who starts the inside of crystallization collection mechanism, driving motor drives the synchronous rotation of the connecting axle that its outside is connected immediately, the connecting axle drives the synchronous rotation of arc gear then, the engaged rotating gear in the arc gear outside then begins to rotate in step, the outside of rotating gear is connected with the axostylus axostyle, the synchronous motion then of axostylus axostyle, drive the synchronous motion of the collection board that its outside is connected immediately, the outside of collection board is provided with the collection latch, collect latch then with the inner wall contact of separation cauldron, strike off the inner wall of separation cauldron, strike off the nanocrystal of adhesion on its inner wall, carry out unified collection to the nanocrystal.
3. This nanocrystal collection device is used in preparation of supercritical carbon dioxide nanocrystal, set up to flexible material through collecting the board, can bend and warp, it is semicircle form to collect the latch, for flexible rubber material, when collecting the latch and striking off separation cauldron's inner wall, avoid the rigidity to strike and cause the damage to separation cauldron, and simultaneously, because collecting the board and being flexible material with collecting the latch, when making to strike off separation cauldron inner wall, can warp better, with the inner wall of laminating separation cauldron, avoid appearing the clearance dead angle.
Drawings
FIG. 1 is a schematic view of the connection structure of the main body of the device of the present invention;
FIG. 2 is a schematic view of the connection structure of the feeding mechanism of the present invention;
FIG. 3 is a schematic view of the connecting structure of the separating vessel of the present invention;
FIG. 4 is a schematic view of the connection configuration of the refrigeration system of the present invention;
fig. 5 is a schematic view of a connection structure of a driving motor according to the present invention.
In the figure: 1. a device main body; 2. a feeding mechanism; 201. a feed inlet; 202. a feed channel; 203. a dissolving kettle; 204. a drive axis; 205. a stirring paddle; 206. a discharge channel; 207. a nozzle; 3. a separation kettle; 301. a refrigeration system; 302. connecting a cable; 303. a connector; 304. a heat exchange system; 305. a temperature control system; 306. a crystallizer; 4. a crystallization collection mechanism; 401. a drive motor; 402. a connecting shaft; 403. an arc gear; 404. a rotating gear; 405. a shaft lever; 406. a hub block; 407. a collection plate; 408. and collecting the latch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-2, a nanocrystal collecting device for preparing supercritical carbon dioxide nanocrystals comprises a device main body 1, a feeding mechanism 2 is installed at the top end of the device main body 1, a feeding port 201 is formed at the top end of the feeding mechanism 2, a feeding channel 202 is connected to the outer side of the feeding port 201, a dissolving kettle 203 is connected to the outer side of the feeding channel 202, a driving shaft center 204 is movably installed inside the dissolving kettle 203, a stirring paddle 205 is connected to the outer side of the driving shaft center 204, a discharging channel 206 is connected to the outer side of the dissolving kettle 203, and a nozzle 207 is connected to one end, away from the dissolving kettle 203, of the discharging channel 206.
The inside of device main part 1 is provided with separation cauldron 3, separation cauldron 3's inside just is located the bottom and is provided with refrigerating system 301, refrigerating system 301's the outside is connected with connecting cable 302, the one end that refrigerating system 301 was kept away from to connecting cable 302 is connected with connector 303, separation cauldron 3's inside just is located the bottom and is provided with heat transfer system 304, connector 303's top is connected with temperature control system 305, the one end fixed mounting that connector 303 was kept away from to temperature control system 305 has crystallization ware 306.
A worker adds a powder material into a feeding hole 201 in advance, the powder material penetrates through the feeding hole 201 and penetrates through a feeding channel 202 to enter a dissolving kettle 203, a supercritical carbon dioxide fluid is stored in the dissolving kettle 203 in advance, the powder material is mixed with the supercritical carbon dioxide fluid in the dissolving kettle 203, a driving shaft center 204 drives a stirring paddle 205 to synchronously rotate, the powder material and the supercritical carbon dioxide fluid are stirred continuously by the stirring paddle 205, the dissolution of the powder material and the supercritical carbon dioxide fluid is accelerated and rapidly dissolved in the supercritical carbon dioxide fluid, after the mixture is stirred and dissolved, the mixture penetrates through a discharging channel 206 and is sprayed out from a nozzle 207 to enter a separating kettle 3, the temperature regulation in the separating kettle 3 is changed by controlling a refrigerating system 301 and a heat exchange system 304 in the separating kettle 3, so that the supercritical carbon dioxide fluid in the separating kettle 3 is gasified, the solute is precipitated and then adheres to the inner wall of the separation kettle 3 in the form of nano crystals, thereby obtaining the nano crystals and realizing the purpose of manufacturing the high-quality nano crystals.
The separation kettle 3 is fixedly provided with a crystallization collection mechanism 4 inside, the crystallization collection mechanism 4 is fixedly provided with a drive motor 401 inside, the drive motor 401 is connected with a connecting shaft 402 outside, the connecting shaft 402 is connected with an arc gear 403 outside, the arc gear 403 is meshed with a rotating gear 404 outside, the rotating gear 404 is connected with a shaft rod 405 outside, the rotating gear 404 is provided with two symmetrical groups, the middle point of the arc gear 403 is used as a symmetrical base point, two opposite groups of rotating gears 404 are meshed and lapped on two sides of the arc gear 403, one end of the shaft rod 405 far away from the rotating gear 404 is connected with a shaft core block 406, the shaft core block 406 is connected with a collection plate 407 outside, the collection plate 407 is provided with two symmetrical groups, the shaft rods 405 are supported by four groups, and the collection teeth 408 are fixedly arranged on the outer surface of the collection plate 407.
Example two
Referring to fig. 3-4, a nanocrystal collecting device for preparing supercritical carbon dioxide nanocrystals comprises a device main body 1, a feeding mechanism 2 is installed at the top end of the device main body 1, a feeding port 201 is formed at the top end of the feeding mechanism 2, a feeding channel 202 is connected to the outer side of the feeding port 201, a dissolving kettle 203 is connected to the outer side of the feeding channel 202, a driving shaft center 204 is movably installed inside the dissolving kettle 203, a stirring paddle 205 is connected to the outer side of the driving shaft center 204, a discharging channel 206 is connected to the outer side of the dissolving kettle 203, and a nozzle 207 is connected to one end, away from the dissolving kettle 203, of the discharging channel 206.
The inside of device main part 1 is provided with separation cauldron 3, separation cauldron 3's inside just is located the bottom and is provided with refrigerating system 301, refrigerating system 301's the outside is connected with connecting cable 302, the one end that refrigerating system 301 was kept away from to connecting cable 302 is connected with connector 303, separation cauldron 3's inside just is located the bottom and is provided with heat transfer system 304, connector 303's top is connected with temperature control system 305, the one end fixed mounting that connector 303 was kept away from to temperature control system 305 has crystallization ware 306.
The inner part of the separation kettle 3 is fixedly provided with a crystallization collection mechanism 4, the inner part of the crystallization collection mechanism 4 is fixedly provided with a driving motor 401, the outer side of the driving motor 401 is connected with a connecting shaft 402, the outer side of the connecting shaft 402 is connected with an arc gear 403, the outer side of the arc gear 403 is engaged with a rotating gear 404, the outer side of the rotating gear 404 is connected with a shaft rod 405, the rotating gear 404 is provided with two groups which are symmetrical, the middle point of the arc gear 403 is used as a symmetrical base point, the two groups of opposite rotating gears 404 are engaged and lapped on the two sides of the arc gear 403, one end of the shaft rod 405, which is far away from the rotating gear 404, is connected with a shaft core block 406, the outer side of the shaft core block 406 is connected with a collection plate 407, and the outer surface of the collection plate 407 is fixedly provided with a collection latch 408.
By starting the driving motor 401 inside the crystallization collection mechanism 4, the driving motor 401 immediately drives the connecting shaft 402 connected with the outer side of the driving motor to synchronously rotate, the connecting shaft 402 then drives the arc gear 403 to synchronously rotate, the rotating gear 404 meshed with the outer side of the arc gear 403 then synchronously starts to rotate, the outer side of the rotating gear 404 is connected with the shaft rod 405, the shaft rod 405 then synchronously moves, and then drives the collection plate 407 connected with the outer side of the shaft rod to synchronously move, the outer side of the collection plate 407 is provided with the collection latch 408, the collection latch 408 then contacts with the inner wall of the separation kettle 3, the inner wall of the separation kettle 3 is scraped, nanocrystals adhered to the inner wall of the collection latch are scraped, and the nanocrystals are uniformly collected.
EXAMPLE III
Referring to fig. 1 and 5, a nanocrystal collecting device for preparing supercritical carbon dioxide nanocrystals comprises a device main body 1, a feeding mechanism 2 is installed at the top end of the device main body 1, a feeding port 201 is formed at the top end of the feeding mechanism 2, a feeding channel 202 is connected to the outer side of the feeding port 201, a dissolving kettle 203 is connected to the outer side of the feeding channel 202, a driving shaft center 204 is movably installed inside the dissolving kettle 203, a stirring paddle 205 is connected to the outer side of the driving shaft center 204, a discharging channel 206 is connected to the outer side of the dissolving kettle 203, and a nozzle 207 is connected to one end, away from the dissolving kettle 203, of the discharging channel 206.
The inside of device main part 1 is provided with separation cauldron 3, separation cauldron 3's inside just is located the bottom and is provided with refrigerating system 301, refrigerating system 301's the outside is connected with connecting cable 302, the one end that refrigerating system 301 was kept away from to connecting cable 302 is connected with connector 303, separation cauldron 3's inside just is located the bottom and is provided with heat transfer system 304, connector 303's top is connected with temperature control system 305, the one end fixed mounting that connector 303 was kept away from to temperature control system 305 has crystallization ware 306.
The inner part of the separation kettle 3 is fixedly provided with a crystallization collection mechanism 4, the inner part of the crystallization collection mechanism 4 is fixedly provided with a driving motor 401, the outer side of the driving motor 401 is connected with a connecting shaft 402, the outer side of the connecting shaft 402 is connected with an arc gear 403, the outer side of the arc gear 403 is engaged with a rotating gear 404, the outer side of the rotating gear 404 is connected with a shaft rod 405, the rotating gear 404 is provided with two groups which are symmetrical, the middle point of the arc gear 403 is used as a symmetrical base point, the two groups of opposite rotating gears 404 are engaged and lapped on the two sides of the arc gear 403, one end of the shaft rod 405, which is far away from the rotating gear 404, is connected with a shaft core block 406, the outer side of the shaft core block 406 is connected with a collection plate 407, and the outer surface of the collection plate 407 is fixedly provided with a collection latch 408.
Set up to flexible material through with collecting plate 407, can bend and warp, collect latch 408 and be semicircle form, for flexible rubber material, when collecting latch 408 and strike off separation cauldron 3's inner wall, avoid the rigidity to strike and cause the damage to separation cauldron 3, simultaneously, because collecting plate 407 and collection latch 408 are flexible material, when making to strike off separation cauldron 3 inner wall, can warp better, with the inner wall of laminating separation cauldron 3, avoid appearing the clearance dead angle.
Example four
Referring to fig. 1-5, a nanocrystal collecting device for preparing supercritical carbon dioxide nanocrystals comprises a device main body 1, a feeding mechanism 2 is installed at the top end of the device main body 1, a feeding port 201 is formed at the top end of the feeding mechanism 2, a feeding channel 202 is connected to the outer side of the feeding port 201, a dissolving kettle 203 is connected to the outer side of the feeding channel 202, a driving shaft center 204 is movably installed inside the dissolving kettle 203, a stirring paddle 205 is connected to the outer side of the driving shaft center 204, a discharging channel 206 is connected to the outer side of the dissolving kettle 203, and a nozzle 207 is connected to one end, away from the dissolving kettle 203, of the discharging channel 206.
The inside of device main part 1 is provided with separation cauldron 3, separation cauldron 3's inside just is located the bottom and is provided with refrigerating system 301, refrigerating system 301's the outside is connected with connecting cable 302, the one end that refrigerating system 301 was kept away from to connecting cable 302 is connected with connector 303, separation cauldron 3's inside just is located the bottom and is provided with heat transfer system 304, connector 303's top is connected with temperature control system 305, the one end fixed mounting that connector 303 was kept away from to temperature control system 305 has crystallization ware 306.
A worker adds a powder material into a feeding hole 201 in advance, the powder material penetrates through the feeding hole 201 and penetrates through a feeding channel 202 to enter a dissolving kettle 203, a supercritical carbon dioxide fluid is stored in the dissolving kettle 203 in advance, the powder material is mixed with the supercritical carbon dioxide fluid in the dissolving kettle 203, a driving shaft center 204 drives a stirring paddle 205 to synchronously rotate, the powder material and the supercritical carbon dioxide fluid are stirred continuously by the stirring paddle 205, the dissolution of the powder material and the supercritical carbon dioxide fluid is accelerated and rapidly dissolved in the supercritical carbon dioxide fluid, after the mixture is stirred and dissolved, the mixture penetrates through a discharging channel 206 and is sprayed out from a nozzle 207 to enter a separating kettle 3, the temperature regulation in the separating kettle 3 is changed by controlling a refrigerating system 301 and a heat exchange system 304 in the separating kettle 3, so that the supercritical carbon dioxide fluid in the separating kettle 3 is gasified, the solute is precipitated and then adheres to the inner wall of the separation kettle 3 in the form of nano crystals, thereby obtaining the nano crystals and realizing the purpose of manufacturing the high-quality nano crystals.
The inner part of the separation kettle 3 is fixedly provided with a crystallization collection mechanism 4, the inner part of the crystallization collection mechanism 4 is fixedly provided with a driving motor 401, the outer side of the driving motor 401 is connected with a connecting shaft 402, the outer side of the connecting shaft 402 is connected with an arc gear 403, the outer side of the arc gear 403 is engaged with a rotating gear 404, the outer side of the rotating gear 404 is connected with a shaft rod 405, the rotating gear 404 is provided with two groups which are symmetrical, the middle point of the arc gear 403 is used as a symmetrical base point, the two groups of opposite rotating gears 404 are engaged and lapped on the two sides of the arc gear 403, one end of the shaft rod 405, which is far away from the rotating gear 404, is connected with a shaft core block 406, the outer side of the shaft core block 406 is connected with a collection plate 407, and the outer surface of the collection plate 407 is fixedly provided with a collection latch 408. By starting the driving motor 401 inside the crystallization collection mechanism 4, the driving motor 401 immediately drives the connecting shaft 402 connected with the outer side of the driving motor to synchronously rotate, the connecting shaft 402 then drives the arc gear 403 to synchronously rotate, the rotating gear 404 meshed with the outer side of the arc gear 403 then synchronously starts to rotate, the outer side of the rotating gear 404 is connected with the shaft rod 405, the shaft rod 405 then synchronously moves, and then drives the collection plate 407 connected with the outer side of the shaft rod to synchronously move, the outer side of the collection plate 407 is provided with the collection latch 408, the collection latch 408 then contacts with the inner wall of the separation kettle 3, the inner wall of the separation kettle 3 is scraped, nanocrystals adhered to the inner wall of the collection latch are scraped, and the nanocrystals are uniformly collected.
Set up to flexible material through with collecting plate 407, can bend and warp, collect latch 408 and be semicircle form, for flexible rubber material, when collecting latch 408 and strike off separation cauldron 3's inner wall, avoid the rigidity to strike and cause the damage to separation cauldron 3, simultaneously, because collecting plate 407 and collection latch 408 are flexible material, when making to strike off separation cauldron 3 inner wall, can warp better, with the inner wall of laminating separation cauldron 3, avoid appearing the clearance dead angle.
The working principle is as follows: when in use, a worker adds a powder material into the feed inlet 201 in advance, the powder material passes through the feed inlet 201 and then passes through the feed channel 202 and then enters the dissolving kettle 203, a supercritical carbon dioxide fluid is stored in the dissolving kettle 203 in advance, the powder material is mixed with the supercritical carbon dioxide fluid in the dissolving kettle 203, the stirring paddle 205 is driven to synchronously rotate by the driving shaft center 204, the dissolution of the powder material and the supercritical carbon dioxide fluid is accelerated by the continuous stirring of the stirring paddle 205, so that the powder material and the supercritical carbon dioxide fluid are rapidly dissolved in the supercritical carbon dioxide fluid, after the stirring and the dissolution, the mixture passes through the discharge channel 206 and is sprayed out from the nozzle 207, and then enters the separating kettle 3, the temperature regulation in the separating kettle 3 is changed by controlling the refrigeration system 301 and the heat exchange system 304 in the separating kettle 3, so that the supercritical carbon dioxide fluid in the separating kettle 3 is gasified, the solute is precipitated and then adheres to the inner wall of the separation kettle 3 in the form of nano crystals, thereby obtaining the nano crystals and realizing the purpose of manufacturing the high-quality nano crystals; because the nanocrystals are attached to the inner wall of the separation kettle 3, in order to facilitate collection, by starting the driving motor 401 inside the crystallization collection mechanism 4, the driving motor 401 immediately drives the connecting shaft 402 connected to the outside thereof to synchronously rotate, the connecting shaft 402 then drives the arc-shaped gear 403 to synchronously rotate, the rotating gear 404 engaged with the outside of the arc-shaped gear 403 then synchronously starts to rotate, the outside of the rotating gear 404 is connected with the shaft rod 405, the shaft rod 405 then synchronously moves, and immediately drives the collection plate 407 connected to the outside thereof to synchronously move, the outside of the collection plate 407 is provided with the collection latch 408, and the collection latch 408 then contacts with the inner wall of the separation kettle 3 to scrape the inner wall of the separation kettle 3, so that the nanocrystals adhered to the inner wall of the separation kettle are scraped, and the nanocrystals are uniformly collected. Simultaneously, collecting plate 407 is flexible material, can bend and warp, and collection latch 408 is half circular, is flexible rubber material, when collecting latch 408 and striking off separation cauldron 3's inner wall, avoids the rigidity to strike off separation cauldron 3 and causes the damage, simultaneously, because collecting plate 407 and collection latch 408 are flexible material, when making strike off separation cauldron 3 inner wall, can warp better to the inner wall of laminating separation cauldron 3 avoids appearing the clearance dead angle.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A nanocrystal collection device for preparing supercritical carbon dioxide nanocrystals, comprising a device main body (1), characterized in that: the device is characterized in that a feeding mechanism (2) is installed at the top end of the device main body (1), a feeding hole (201) is formed in the top end of the feeding mechanism (2), a feeding channel (202) is connected to the outer side of the feeding hole (201), a dissolving kettle (203) is connected to the outer side of the feeding channel (202), a driving shaft center (204) is movably installed inside the dissolving kettle (203), a stirring paddle (205) is connected to the outer side of the driving shaft center (204), a discharging channel (206) is connected to the outer side of the dissolving kettle (203), and a nozzle (207) is connected to one end, far away from the dissolving kettle (203), of the discharging channel (206);
the inside of device main part (1) is provided with separation cauldron (3), the inside of separation cauldron (3) just is located the bottom and is provided with refrigerating system (301), the outside of refrigerating system (301) is connected with connecting cable (302), the one end that refrigerating system (301) were kept away from in connecting cable (302) is connected with connector (303), the inside of separation cauldron (3) just is located the bottom and is provided with heat transfer system (304), the top of connector (303) is connected with temperature control system (305), the one end fixed mounting that connector (303) were kept away from in temperature control system (305) has crystallization ware (306).
2. The nanocrystal collection apparatus for preparing supercritical carbon dioxide nanocrystals, as recited in claim 1, further comprising: the separation kettle is characterized in that a crystallization collection mechanism (4) is fixedly mounted inside the separation kettle (3), a driving motor (401) is fixedly mounted inside the crystallization collection mechanism (4), a connecting shaft (402) is connected to the outer side of the driving motor (401), an arc gear (403) is connected to the outer side of the connecting shaft (402), a rotating gear (404) is meshed to the outer side of the arc gear (403), a shaft lever (405) is connected to the outer side of the rotating gear (404), one end, far away from the rotating gear (404), of the shaft lever (405) is connected with a shaft center block (406), a collection plate (407) is connected to the outer side of the shaft center block (406), and a collection latch (408) is fixedly mounted on the outer surface of the collection plate (407).
3. The nanocrystal collection apparatus for preparing supercritical carbon dioxide nanocrystals, as recited in claim 2, further comprising: the collecting plate (407) is horizontal and long, is made of flexible materials and can be bent and deformed.
4. The nanocrystal collection apparatus for preparing supercritical carbon dioxide nanocrystals, as recited in claim 2, further comprising: the collecting latch (408) is semicircular and made of flexible rubber, and is attached to the inner wall of the separation kettle (3).
5. The nanocrystal collection apparatus for preparing supercritical carbon dioxide nanocrystals, as recited in claim 2, further comprising: the two groups of symmetrical rotating gears (404) are arranged, the middle point of the arc-shaped gear (403) is taken as a symmetrical base point, and the two groups of opposite rotating gears (404) are meshed and lapped on the two sides of the arc-shaped gear (403).
6. The nanocrystal collection apparatus for preparing supercritical carbon dioxide nanocrystals, as recited in claim 2, further comprising: the collecting plates (407) are provided with two symmetrical groups which are supported by four groups of shaft rods (405).
CN202111543080.1A 2021-12-16 2021-12-16 Nanocrystal collection device is used to supercritical carbon dioxide nanocrystal preparation Pending CN114411262A (en)

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CN112473176A (en) * 2020-11-07 2021-03-12 江苏高科制药设备有限公司 Pneumatic control type supercritical extraction pharmaceutical equipment
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