CN210675091U - Array type coaxial electrostatic spraying device - Google Patents
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- CN210675091U CN210675091U CN201921451505.4U CN201921451505U CN210675091U CN 210675091 U CN210675091 U CN 210675091U CN 201921451505 U CN201921451505 U CN 201921451505U CN 210675091 U CN210675091 U CN 210675091U
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Abstract
The utility model discloses an array type coaxial electrostatic spraying device, which comprises an inner cavity, an outer groove body, a plurality of inner needles, a plurality of outer needles and a high-voltage electrostatic generator; the inner cavity is used for accommodating the core material and is provided with a first liquid outlet; the outer groove body is used for accommodating shell materials and is sleeved on the periphery of the inner cavity body, and a second liquid outlet is formed; the inner needle is communicated with the first liquid outlet; the outer needle head is communicated with the second liquid outlet and sleeved on the periphery of the inner needle head to form a coaxial spray head together with the inner needle head; the high-voltage electrostatic generator enables the core material and the shell material flowing through the coaxial nozzle to be atomized and sprayed out simultaneously to form the microsphere with the core-shell structure. In the utility model, the outer needle head is connected with the inner needle head to form a coaxial spray head, and the production efficiency of the preparation can be greatly improved by a plurality of coaxial spray heads; the inner cavity and the outer tank body respectively provide balanced and consistent core materials and shell materials for the plurality of coaxial nozzles, which is beneficial to quickly and efficiently preparing microspheres with uniform particle sizes and can greatly optimize the production quality of the microspheres.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to coaxial electrostatic spray device of array.
Background
Due to the structural particularity of the micro/nano particles with the shell-core structure, the shell and the core of the micro/nano particles can be designed into materials with different properties and functions, so that the micro/nano particles have multiple functions and have wide application prospects in the fields of sensing, catalysis, coatings, cosmetics, foods, biomedicine and the like.
The traditional method generally prepares core-shell structure micro/nanoparticles by single-head spraying, but the single-head spraying has the defect of low yield. The coaxial electrostatic spraying technology is a novel simple technology for preparing micro/nano particles with core-shell structures. Different materials are placed in the inner shaft and the outer shaft, and micro/nano particles with a shell-core structure can be produced under a high-voltage electric field. For example, drug-loaded microspheres with different drugs wrapped in inner and outer layers can be prepared, so that sequential controllable release of different drugs is realized; the multifunctional embolism microsphere can be prepared by wrapping various developers and anticancer drugs; can be used for preparing oil-in-water or water-in-oil microparticles, endows the inner layer material with the characteristics of the outer layer material, and improves the surface activity, biocompatibility, stability and the like of the particles.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a coaxial electrostatic spraying device of array aims at overcoming the problem that the electrostatic spraying inefficiency that the coaxial shower nozzle of single-end leads to.
In order to achieve the above object, the utility model provides a coaxial electrostatic spray device of array, include:
the inner cavity is used for accommodating core materials and provided with a first liquid outlet;
the outer groove body is sleeved on the periphery of the inner cavity and provided with a second liquid outlet corresponding to the first liquid outlet;
a plurality of inner needles communicated with the first liquid outlet;
the outer needle heads are communicated with the second liquid outlet and are coaxially sleeved on the peripheries of the inner needle heads one by one so as to form a plurality of coaxial spray heads together with the inner needle heads; and the number of the first and second groups,
and the high-voltage electrostatic generator is used for acting on the plurality of coaxial nozzles so that the core material and the shell material flowing through the plurality of coaxial nozzles are atomized and sprayed out simultaneously.
Optionally, a plurality of first liquid outlets are distributed at the bottom of the inner cavity along an array; and/or the presence of a gas in the gas,
the second liquid outlets are distributed at the bottom of the outer groove body along the array.
Optionally, the first liquid outlet is provided with a plurality of first liquid outlets, a first connecting pipe is formed by protruding the opening edge of each first liquid outlet out of the outer wall of the inner cavity, and each inner needle is detachably sleeved on the corresponding first connecting pipe;
the second liquid outlet is provided with a plurality of, each the mouth edge of second liquid outlet is outstanding the outer wall of outer cell body and be formed with the second connecting pipe, each outer syringe needle detachably cup joints corresponding the second connecting pipe, each interior syringe needle is worn to establish in proper order and is corresponded the second connecting pipe with in the outer syringe needle.
Optionally, the bottom of the inner cavity, the bottom of the outer groove body, the outer needle head and the inner needle head are all made of metal materials;
and the electrode of the high-voltage electrostatic generator is connected with the bottom of the inner cavity or the bottom of the outer groove body.
Optionally, each outer needle head is provided with a centering hole along the vertical direction, the aperture of the centering hole is matched with the corresponding outer diameter of the inner needle head, and the centering hole is used for the corresponding inner needle head to penetrate.
Optionally, a sealing ring is embedded between the notch of the outer groove body and the inner cavity.
Optionally, the array-type coaxial electrostatic spraying device further comprises:
the first storage bin is communicated with the inner cavity and used for throwing core materials into the inner cavity;
the second storage bin is communicated with the outer tank body and used for throwing shell materials into the outer tank body; and the number of the first and second groups,
and the feeding adjusting device is respectively connected with the first storage bin and the second storage bin so as to respectively adjust the feeding speed of the core material and the feeding speed of the shell material.
Optionally, the feed regulation device comprises:
the pressurization air pump is respectively communicated with the first storage bin and the second storage bin through a pipeline;
the two regulating valves are respectively arranged on the two pipelines and are used for respectively regulating the opening degrees of the corresponding pipelines; and the number of the first and second groups,
and the two pressure gauges are respectively arranged on the two pipelines and are used for respectively measuring the pressure values of the corresponding pipelines.
Optionally, the array coaxial electrostatic spraying device further comprises two flowmeters, and the two flowmeters are respectively arranged at the communication position between the first storage bin and the inner cavity and the communication position between the second storage bin and the outer tank.
Optionally, the array-type coaxial electrostatic spraying device further comprises:
the dry-method receiving device comprises a collecting plate, wherein the collecting plate is made of a conductive material and is grounded, and the collecting plate is used for receiving core materials and shell materials which are atomized and sprayed by a plurality of coaxial nozzles to form micro/nano particles with a shell-core structure; or,
the wet receiving device comprises a containing groove, wherein the containing groove is used for containing a solvent, and the containing groove is used for receiving the core material and the shell material which are atomized and sprayed by the array type coaxial nozzles so as to react with the solvent to form the micro/nano particles with the shell-core structure.
In the technical scheme provided by the utility model, an outer needle head is sleeved with an inner needle head to form a coaxial spray head, when the number of the coaxial spray heads is multiple, the production efficiency of the preparation can be greatly improved; and the inner cavity and the outer groove body are respectively used for providing balanced and consistent core materials and shell materials for the coaxial nozzles, so that the preparation particles with uniform particle sizes can be rapidly and efficiently prepared, and the production quality of the preparation can be greatly optimized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic view of an embodiment of an array type coaxial electrostatic spraying apparatus provided by the present invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Due to the structural particularity of the micro-nano particles with the shell-core structure, the shell and the core of the micro-nano particles can be designed into materials with different properties and functions, so that the micro-nano particles have multiple functions and have wide application prospects in the fields of sensing, catalysis, coatings, cosmetics, foods, biomedicine and the like.
The traditional method generally prepares core-shell structure micro/nanoparticles by single-head spraying, but the single-head spraying has the defect of low yield. The coaxial electrostatic spraying technology is a novel simple technology for preparing the micro-nano particles with the core-shell structure. Different materials are placed in the inner shaft and the outer shaft, and micro/nano particles with a shell-core structure can be produced under a high-voltage electric field. For example, drug-loaded microspheres with different drugs wrapped in inner and outer layers can be prepared, so that sequential controllable release of different drugs is realized; the multifunctional embolism microsphere can be prepared by wrapping various developers and anticancer drugs; can be used for preparing oil-in-water or water-in-oil microparticles, endows the inner layer material with the characteristics of the outer layer material, and improves the surface activity, biocompatibility, stability and the like of the particles.
In view of this, the present invention provides an array type coaxial electrostatic spraying device, and fig. 1 to 2 illustrate a specific embodiment of the array type coaxial electrostatic spraying device provided by the present invention.
Referring to fig. 1 and 2, the present invention provides an array coaxial electrostatic spraying apparatus 100, which includes an inner cavity 1, an outer groove 2, a plurality of inner needles 3, a plurality of outer needles 4, and a high voltage electrostatic generator 5. The inner cavity 1 contains a core material, and the inner cavity 1 is provided with a first liquid outlet 11; the outer tank body 2 is used for accommodating shell materials, the outer tank body 2 is sleeved on the periphery of the inner tank body 1, and a second liquid outlet 21 is formed in the position corresponding to the first liquid outlet 11; the inner needles 3 are communicated with the first liquid outlet 11; the outer needles 4 are communicated with the second liquid outlets 21 and are coaxially sleeved on the peripheries of the inner needles 3 one by one to form a plurality of coaxial nozzles together with the inner needles 3; the high-voltage electrostatic generator 5 is used for acting on the plurality of coaxial spray heads so that the core material and the shell material flowing through the plurality of coaxial spray heads are atomized and sprayed.
In the technical scheme provided by the utility model, one outer needle 4 is sleeved with one inner needle 3 to form one coaxial sprayer, when a plurality of coaxial sprayers are arranged, the production efficiency of the preparation can be greatly improved; and, the inner cavity 1 and the outer groove body 2 are respectively used for providing balanced and consistent core materials and shell materials for the coaxial nozzles, which is beneficial to quickly and efficiently preparing preparation particles with uniform particle size and can greatly optimize the production quality of the preparation.
This design is right interior cavity 1 with the concrete expression form of outer cell body 2 does not make the restriction, interior cavity 1 can concrete expression be a box that has the inner chamber, the box has been seted up first liquid outlet 11 and first inlet 12, in order to supply the kernel material certainly first inlet 12 gets into, the warp the inner chamber, and follow first liquid outlet 11 flows, wherein, shape, material, the concrete size etc. of box all can adjust as required, first inlet 12 with the restriction is not done equally to seting up position, opening shape, quantity and the size of first liquid outlet 11.
The notch end of outer cell body 2 cup joints at least interior cavity 1 is last to have seted up the one end of first liquid outlet 11, and with interior cavity 1 encloses jointly to establish and forms one and hold the chamber, with the same reason, it has seted up second liquid outlet 21 and second inlet 22 to hold the chamber, so that supply the shell material certainly second inlet 22 gets into, the warp hold the chamber, and follow second liquid outlet 21 exports. The sleeving connection mode between the outer tank body 2 and the inner cavity 1 is not limited, for example, the outer tank body 2 may be provided with an internal thread, the inner cavity 1 is provided with an external thread, and the two are fixed by screwing; or, a step surface which is arranged outwards is formed in the outer groove body 2 close to the notch, so that the inner cavity body 1 can be abutted and mounted. The inner cavity 1 and the outer groove body 2 are arranged, and particularly when the first liquid outlets 11 and the second liquid outlets 21 are arranged in a large number, the feeding amount and the feeding speed between all the first liquid outlets 11 and between all the second liquid outlets 21 can be ensured to be balanced and consistent, so that the finally prepared medicament has uniform particle size.
It should be noted that the first liquid outlet 11 and the second liquid outlet 21 are preferably arranged on the same center line, so that the outer needle 4 is ensured to be coaxially sleeved on the periphery of the inner needle 3 after being installed in place, and thus, in the finally formed preparation, the core material is located in the preparation center, the shell material is uniformly wrapped on the periphery of the core material, and the quality is better.
In view of the above, the present design does not limit the opening positions and the opening numbers of the first liquid outlet 11 and the second liquid outlet 21, but preferably, the first liquid outlet 11 is arranged in a plurality at the bottom of the inner cavity 1 along an array; and/or a plurality of second liquid outlets 21 are distributed at the bottom of the outer tank body 2 along an array. Taking the first liquid outlet 11 as an example, the first liquid outlet 11 is formed at the bottom of the inner cavity 1, so that core materials accommodated in the inner cavity 1 can uniformly and naturally fall downwards under the action of gravity, and the core materials do not need to be driven by a power source, so that the energy is saved and the efficiency is high; the first liquid outlets 11 are distributed along the array, so that the quantity of the prepared medicament in unit time is doubled, and the preparation efficiency is improved; moreover, more medicaments can be prepared in the same batch, which is helpful for reducing the difference between preparations; the medicaments prepared in the same batch can be evenly spaced, and the final forming and collection are facilitated. The arrangement of the second liquid outlet 21 is the same as that of the first liquid outlet 11, and details thereof are omitted here.
Further, when the first liquid outlet 11 is provided with a plurality of first liquid outlets, a first connecting pipe 13 is formed at the opening of each first liquid outlet 11 along the outer wall protruding from the inner cavity 1, and each inner needle 3 is detachably sleeved on the corresponding first connecting pipe 13; when the second liquid outlet 21 is provided with a plurality of, each second liquid outlet 21 mouth along outstanding outer wall of outer cell body 2 and be formed with second connecting pipe 23, each outer syringe needle 4 detachably cup joints corresponding second connecting pipe 23, each interior syringe needle 3 wear to establish in proper order in corresponding second connecting pipe 23 with in the outer syringe needle 4. Also, taking the first liquid outlet 11 as an example, the first connecting tube 13 is integrally formed with the inner cavity 1, which helps to simplify the manufacturing process; the arrangement of the first connecting pipe 13 can completely sleeve the inner needle 3 on the one hand, so as to enhance the connection strength between the inner needle and the inner needle, and the inner core material flowing out from the first liquid outlet 11 can only flow to the inner needle 3 through the first connecting pipe 13. Of course, the first connecting tube 13 and the inner needle 3 can be sleeved in various ways, such as screwing or clamping; on the other hand, the first connection tube 13 extends the length of the flow path of the core material, thereby helping to slowly release the potential energy of the core material entering the inner cavity 1 from the first liquid inlet 12, and avoiding the influence on the quality of the finally prepared preparation caused by over-rapid or non-uniform flow speed. The matching between the second connecting tube 23 and the outer needle 4 is the same as the above, and the description thereof is omitted here.
It should be noted that the inner needle 3 is detachably connected to the first connecting tube 13, and the outer needle 4 is detachably connected to the second connecting tube 23, so that the inner needle 3 and the outer needle 4 support replacement among a plurality of specifications, which can be selected according to actual needs. Wherein, interior syringe needle 3 with outer syringe needle 4 can use standard medical syringe needle, ensure that the pipe diameter of interior syringe needle 3 is less than the pipe diameter of outer syringe needle 4 can.
Next, in this embodiment, the bottom of the inner cavity 1, the bottom of the outer groove 2, the outer needle 4 and the inner needle 3 are all made of metal material; and the power output end of the high-voltage electrostatic generator 5 is connected with the bottom of the inner cavity 1 or the bottom of the outer groove body 2. Wherein, interior cavity 1's bottom includes interior cavity 1's diapire with first connecting pipe 13 outer groove body 2's bottom includes outer groove body 2's diapire with second connecting pipe 23 is made by the metal material through setting up above-mentioned structure, can improve the intensity of above-mentioned structure, and the metal material generally has better electric conductive property moreover, makes high-voltage static generator 5 only need be connected with one in the above-mentioned structure, can realize right interior syringe needle 3 with the high pressure atomization of outer syringe needle 4 simplifies the connection procedure. The high-voltage electrostatic generator 5 is a conventional product, and the specific principle and use thereof can refer to the prior art, and are not described in detail herein.
In order to ensure that the inner needle 3 is arranged in the outer needle 4 in a penetrating manner, the inner needle and the outer needle are arranged on the same center line, in this embodiment, each outer needle 4 is provided with a centering hole 41 along the vertical direction, the aperture of the centering hole 41 is matched with the corresponding outer diameter of the inner needle 3, and the centering hole 41 is used for the corresponding inner needle 3 to penetrate. The formation of the centering hole 41 is not limited in the present design, for example, at least one section of the outer needle 4 may be provided with a reduced pipe diameter to match the outer diameter of the inner needle 3 to form the centering hole 41; alternatively, a sleeve may be additionally provided, said sleeve being inserted into said outer needle 4, said sleeve being, for example, a helical spring sleeve, said spring sleeve having said centering hole 41 extending through the middle thereof.
In addition, in this embodiment, a sealing ring 6 is embedded between the notch of the outer tank 2 and the inner cavity 1. The sealing ring 6 can prevent external impurities from entering the outer groove body 2, so that the preparation process is clean and pollution-free; the sealing ring 6 can also obstruct the overflow of the shell material in the outer groove body 2, which is helpful for saving the consumption of the material and maintaining the cleanness of the external environment.
In order to improve the working efficiency of the array-type coaxial electrostatic spraying device 100, the core material and the shell material need to be continuously and stably supplied, but the quality of the inner cavity 1 and the outer tank 2 should not be too large, that is, the inner cavity 1 and the outer tank 2 should not store too much core material and shell material, in this embodiment, the array-type coaxial electrostatic spraying device 100 further includes a first storage bin 71, a second storage bin 72 and a feeding adjustment device, wherein the first storage bin 71 is communicated with the first liquid inlet 12 of the inner cavity 1 and is used for feeding the core material into the inner cavity 1; the second storage bin 72 is communicated with the second liquid inlet 22 of the outer tank body 2 and is used for throwing shell materials into the outer tank body 2; the feeding adjusting device is respectively connected with the first storage bin 71 and the second storage bin 72 to respectively adjust the feeding rates of the core material and the shell material. The first storage bin 71 and the second storage bin 72 are arranged, and meanwhile, the phenomenon that the drug property is influenced due to the fact that the inner core material and the outer shell material are excessively accumulated in the inner cavity 1 and the outer groove body 2 respectively can also be avoided. The feeding adjusting device is beneficial to realizing the automatic feeding of the core material and the shell material, the feeding speed is adjustable, and the feeding adjusting device is suitable for various application occasions.
Specifically, in this embodiment, the feeding adjustment device includes a pressurization air pump 73, two adjustment valves 74 and two pressure gauges 75, where the pressurization air pump 73 is respectively communicated with the first storage bin 71 and the second storage bin 72 through a pipeline, and of course, the number of the pressurization air pumps 73 may also be two, which are respectively used for providing power for the first storage bin 71 and the second storage bin 72, and the two adjustment valves 74 are respectively disposed on the two pipelines and are used for respectively adjusting the opening degrees of the corresponding pipelines; the two pressure gauges 75 are respectively arranged on the two pipelines and are used for respectively measuring the pressure values of the corresponding pipelines. Similarly, the branch where the inner cavity 1 is located is taken as an example for explanation, the first liquid inlet 12 of the inner cavity 1 is communicated with the first storage bin 71, the first storage bin 71 is communicated with the pressurization air pump 73 through a pipeline, the pipeline is provided with the adjusting valve 74 and the pressure gauge 75, when core materials need to be put in, the adjusting valve 74 and the pressurization air pump 73 are firstly controlled to be opened, the pressure gauge 75 is used for monitoring the increased pressure of the pressurization air pump 73 in the first storage bin 71, and when the pressure intensity in the first storage bin 71 is greater than the external pressure intensity, the core materials contained in the first storage bin are pressurized and pushed to the inner cavity 1, so that the automatic putting of the core materials is realized. The branch where the outer tank body 2 is located is the same as the above, and the description thereof is omitted.
Further, in this embodiment, the array-type coaxial electrostatic spraying device 100 further includes two flow meters 8, and the two flow meters 8 are respectively disposed at a communication position between the first storage bin 71 and the inner cavity 1, and a communication position between the second storage bin 72 and the outer tank 2. The flowmeter 8 is used for measuring the flow velocity of the first storage bin 71 to the inner cavity 1 and the flow velocity of the second storage bin 72 to the outer tank body 2, so that quantitative management and control of an operator on the feeding process are facilitated. Of course, the flow meter 8, the booster air pump 73, the regulating valve 74 and the pressure gauge 75 are all existing products, and the specific structure and use thereof are not described in detail in the present design.
In addition, in this embodiment, the array-type coaxial electrostatic spraying device 100 further comprises a dry-process receiving device or a wet-process receiving device according to the difference of the preparation required to be prepared, wherein the dry-process receiving device comprises a collecting plate 9, the collecting plate 9 is made of a conductive material and is grounded, and the collecting plate 9 is used for receiving the core material and the shell material atomized and ejected by the coaxial nozzle to form micro/nanoparticles with a shell-core structure; the wet receiving device comprises a containing groove (not shown in the attached drawing), the containing groove is used for containing a solvent, and the containing groove is used for receiving the core material and the shell material which are atomized and sprayed by the coaxial nozzle so as to react with the solvent to form the micro/nano particles with the shell-core structure. After the high-voltage electrostatic generator 5 acts, the droplets ejected by the inner needle 3 and the outer needle 4 are micro/nano-scale charged droplets with a shell-core structure, when the charged droplets are in a liquid state and can naturally volatilize in the electrostatic spraying process, the droplets are dried and formed into particles, the particles are directly arranged on the collecting plate 9, and the solidified charged particles can be uncharged and collected on the collecting plate 9; when the charged small droplets cannot naturally volatilize in the liquid state during the electrostatic spraying process, for example, the charged small droplets need to be volatilized in the liquid state with the aid of the solvent or need to be solidified and formed by a cross-linking agent, the accommodating groove can be arranged at the moment. The solvent is selected according to different formulations, and is not listed here.
It should be noted that, in the present design, an installation process of the array-type coaxial electrostatic spraying apparatus 100 is provided, specifically, first, the plurality of inner needles 3 are sleeved at the plurality of first connecting pipes 13 one by one, then the outer tank 2 is sleeved at the periphery of the inner tank 1, and the plurality of inner needles 3 penetrate through the plurality of second connecting pipes 23 one by one; and finally, sleeving the outer needles 4 on the second connecting pipes 23 one by one to form coaxial nozzles together with the corresponding inner needles 3.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. An array coaxial electrostatic spraying device, comprising:
the inner cavity is used for accommodating core materials and provided with a first liquid outlet;
the outer groove body is sleeved on the periphery of the inner cavity and provided with a second liquid outlet corresponding to the first liquid outlet;
a plurality of inner needles communicated with the first liquid outlet;
the outer needle heads are communicated with the second liquid outlet and are coaxially sleeved on the peripheries of the inner needle heads one by one so as to form a plurality of coaxial spray heads together with the inner needle heads; and the number of the first and second groups,
and the high-voltage electrostatic generator is used for acting on the plurality of coaxial nozzles so that the core material and the shell material flowing through the plurality of coaxial nozzles are atomized and sprayed out simultaneously.
2. The array type coaxial electrostatic spraying device of claim 1, wherein the first liquid outlets are distributed along the array at the bottom of the inner cavity; and/or the presence of a gas in the gas,
the second liquid outlets are distributed at the bottom of the outer groove body along the array.
3. The array type coaxial electrostatic spraying device of claim 1, wherein the first liquid outlet is provided with a plurality of first liquid outlets, the mouth edge of each first liquid outlet protrudes out of the outer wall of the inner cavity to form a first connecting pipe, and each inner needle is detachably sleeved on the corresponding first connecting pipe;
the second liquid outlet is provided with a plurality of, each the mouth edge of second liquid outlet is outstanding the outer wall of outer cell body and be formed with the second connecting pipe, each outer syringe needle detachably cup joints corresponding the second connecting pipe, each interior syringe needle is worn to establish in proper order and is corresponded the second connecting pipe with in the outer syringe needle.
4. The array type coaxial electrostatic spraying device of claim 3, wherein the bottom of the inner cavity, the bottom of the outer tank, the outer needle and the inner needle are made of metal material;
and the electrode of the high-voltage electrostatic generator is connected with the bottom of the inner cavity or the bottom of the outer groove body.
5. The array type coaxial electrostatic spraying device of claim 1, wherein each outer needle is vertically perforated with a centering hole, the hole diameter of the centering hole is matched with the outer diameter of the corresponding inner needle, and the centering hole is used for the corresponding inner needle to penetrate through.
6. The array type coaxial electrostatic spraying device of claim 1, wherein a sealing ring is embedded between the notch of the outer tank body and the inner cavity.
7. The array coaxial electrostatic spraying device of claim 1, further comprising:
the first storage bin is communicated with the inner cavity and used for throwing core materials into the inner cavity;
the second storage bin is communicated with the outer tank body and used for throwing shell materials into the outer tank body; and the number of the first and second groups,
and the feeding adjusting device is respectively connected with the first storage bin and the second storage bin so as to respectively adjust the feeding speed of the core material and the feeding speed of the shell material.
8. The array coaxial electrostatic spraying device of claim 7, wherein the feed conditioning device comprises:
the pressurization air pump is respectively communicated with the first storage bin and the second storage bin through a pipeline;
the two regulating valves are respectively arranged on the two pipelines and are used for respectively regulating the opening degrees of the corresponding pipelines; and the number of the first and second groups,
and the two pressure gauges are respectively arranged on the two pipelines and are used for respectively measuring the pressure values of the corresponding pipelines.
9. The arrayed coaxial electrostatic spraying device of claim 7, further comprising two flow meters disposed in communication between the first storage bin and the inner chamber and in communication between the second storage bin and the outer tank.
10. The array coaxial electrostatic spraying device of claim 1, further comprising:
the dry-method receiving device comprises a collecting plate, wherein the collecting plate is made of a conductive material and is grounded, and the collecting plate is used for receiving core materials and shell materials which are atomized and sprayed by a plurality of coaxial nozzles to form micro/nano particles with a shell-core structure; or,
the wet receiving device comprises a containing groove, wherein the containing groove is used for containing a solvent, and the containing groove is used for receiving the core material and the shell material which are atomized and sprayed by the array type coaxial nozzles so as to react with the solvent to form the micro/nano particles with the shell-core structure.
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| CN201921451505.4U CN210675091U (en) | 2019-09-02 | 2019-09-02 | Array type coaxial electrostatic spraying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114699780A (en) * | 2022-03-22 | 2022-07-05 | 北京金轮坤天特种机械有限公司 | Atomizer and powder preparation facilities of direct preparation of superfine spherical powder that agglomerates |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114699780A (en) * | 2022-03-22 | 2022-07-05 | 北京金轮坤天特种机械有限公司 | Atomizer and powder preparation facilities of direct preparation of superfine spherical powder that agglomerates |
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