CN111821925B

CN111821925B - Microcapsule preparation facilities

Info

Publication number: CN111821925B
Application number: CN202010716926.6A
Authority: CN
Inventors: 袁晓东
Original assignee: Chongqing Dongsheng Precision Technology Co ltd
Current assignee: Chongqing Dongsheng Precision Technology Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2022-09-30
Anticipated expiration: 2040-07-23
Also published as: CN111821925A

Abstract

The invention belongs to the technical field of microcapsule manufacturing equipment, and particularly discloses a microcapsule preparation device which comprises a dripping system, a conveying and forming system and a collecting system, wherein the conveying and forming system comprises a wire groove and a liquid storage barrel; the material dripping system comprises a conveying pump and a dripping disc, wherein the conveying pump is used for conveying materials to the dripping disc, a cavity is formed in the dripping disc, and a distribution plate is arranged in the cavity; the drip plate is provided with an air inlet seat, the lower end of the air inlet seat is communicated with the air cavity, the drip plate is provided with an air outlet seat, an air hole communicated with the air cavity and the outside of the air cavity is formed in the air outlet seat, the lower side of the distribution plate is provided with a through needle, the lower side of the inside of the air hole is provided with a guide wall guiding air to the lower part of the through needle, and the through needle is positioned right above the wire groove; the collection system includes a hopper for collecting the microcapsules, the hopper being located below the outlet end of the raceway. The preparation process is easy to control, has good repeatability, can prepare microcapsules with small difference in batches, and provides good support for industrial production.

Description

Microcapsule preparation facilities

Technical Field

The invention belongs to the technical field of microcapsule manufacturing equipment, and particularly relates to a microcapsule preparation device.

Background

The microcapsule technology is a technology for coating solid liquid or gas into inclusion with a functional core-shell structure by using a film-forming material. The microcapsule technology has been popularized in various fields including medicine, agriculture and pharmacology, perfumery, coating science, food science, and cosmetic preparation. Some substances, microencapsulated, can be stored in the form of a finely divided core and released when needed, changing their color, appearance, heat resistance, solubility, volume, mass, etc. The microcapsule technology mainly has the following advantages: microencapsulation can change the material form, thereby changing the existing state, mass and volume of the material; secondly, the microencapsulation can control the release of the core material, control the release time, the release rate and the release content of the core material, the volatile substances are effectively protected and released at a proper time through microencapsulation; thirdly, covering up bad flavor, reducing volatility, the bad smell of the core material can be covered by the shielding effect of the microcapsule wall material, and the volatility of the core material is reduced; the interaction between the materials is isolated, the sensitive materials are protected, and the sensitive material components are microencapsulated, so that the sensitive materials are protected from being influenced by external adverse environments, the stability of the sensitive materials is improved, and adverse reactions caused by the interaction between the sensitive materials and other components can be avoided; the stability of the core material is improved, and the active ingredients of the core material are protected; sixthly, the harm of the preservative, the preservative and the like to food or human bodies is reduced.

In order to solve the problems, the Chinese patent with publication number CN105727854B discloses a line-slot type production device for flaky microcapsules, which can prepare flaky microcapsules by using gel drippers, salt solutions and line slots, wherein the device can prepare microcapsules different from spherical microcapsules, but the gel solution is dripped only through the gel drippers, so that the size and dripping speed of the liquid drops are difficult to control, and the difference of the finally formed microcapsules is large, and the quality is difficult to guarantee.

Disclosure of Invention

The invention aims to provide a microcapsule preparation device, which ensures that the overall size of microcapsules prepared each time is relatively consistent, the preparation process is easy to control, the repeatability is good, the microcapsules with small differences can be prepared in batches, and better support is provided for industrial production.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a microcapsule preparation device, which comprises a heat preservation system, a dripping system, a conveying and forming system and a collecting system,

the conveying and forming system comprises a wire groove and a liquid storage barrel for containing cladding liquid, wherein a water inlet end and a water outlet end are respectively arranged at two ends of the wire groove, the wire groove is obliquely arranged with the water inlet end higher than the water outlet end, and a connector connected with the water inlet end of the wire groove is arranged at the bottom of the liquid storage barrel;

the dripping system comprises a delivery pump and a dripping disc, the delivery pump is used for delivering materials to the dripping disc, the dripping disc is positioned on one side of the water inlet end of the wire groove, a cavity is formed in the dripping disc, a distribution plate is arranged in the cavity, and the upper part and the lower part of the cavity are divided into a liquid inlet cavity and an air cavity by the distribution plate; the drip plate is provided with an air inlet seat connected with an air supply source, the lower end of the air inlet seat extends downwards into the air cavity and is communicated with the air cavity, the bottom wall of the drip plate is at least provided with an air outlet seat, the air outlet seat is internally provided with an air hole communicated with the air cavity and the outside of the air cavity, the lower side of the distribution plate is at least provided with a through needle, the upper end of the through needle is communicated with the liquid inlet cavity, the lower end of the through needle extends downwards into the air hole of the air outlet seat, a guide wall guiding air to the lower part of the through needle is arranged in the air hole, and the through needle is positioned right above the wire groove;

the collection system includes a hopper for collecting the microcapsules, the hopper being located below the outlet end of the raceway.

The microcapsule preparation device also comprises a frame for providing support for the heat preservation system, the dripping system and the conveying and forming system or the components in the systems.

The principle of the scheme is as follows: open the joint of stock solution barrel head portion, cladding liquid in the stock solution bucket flows into the wire casing in, then cladding liquid can flow into the workbin along the wire casing, simultaneously, starts the delivery pump, and the delivery pump is carried the material to the drip tray, and the material gets into the feed liquor intracavity of drip tray, opens the air feed source simultaneously and carries gas in to the seat of admitting air. The distribution plate is provided with a through needle communicated with the liquid inlet cavity, so that the material can flow into the through needle and flow downwards along the through needle, when the liquid material flows to the lower port of the through needle, the liquid material can form drop-shaped downward drops, and meanwhile, the flow rate of the delivery pump is controlled to enable the delivery pump to rotate once when the through needle drops one drop at a time, so that the size and the flow rate of the drop at each time are controlled to be consistent. In the process, the gas flows into the gas cavity from the gas inlet seat and then flows into the gas hole, because the lower end of the through needle is positioned at the gas hole, and the lower side inside the gas hole is provided with a guide wall for guiding the gas to the position below the through needle, the gas can form wind flow at the opening at the lower end of the through needle when flowing out from the gas hole, when liquid forms liquid drops at the lower end of the liquid through needle, the wind flow can apply downward force on the liquid drops to divide the liquid drops from other liquid in the through needle, and simultaneously the size of the wind flow can be controlled through the gas supply source, so that the size of the liquid drops can be controlled through the wind flow and the delivery pump, and the difference of the prepared microcapsules cannot be too large.

Preferably, the number of the wire grooves is a plurality, the number of the through needles and the number of the connectors are consistent with that of the wire grooves, and the number of the liquid outlets of the conveying pump is consistent with that of the drip trays.

Preferably, a plurality of lifting mechanisms for adjusting the height of the wire casing are arranged on the lower side of the wire casing.

Preferably, elevating system includes at least a set of lifting unit, and lifting unit includes lower landing leg, goes up landing leg and regulation structure, and lower landing leg supports on the ground, adjusts the structure and includes threaded connection in the screw rod on lower landing leg, fixedly connected with hand wheel on the screw rod, screw rod upper end threaded connection in last landing leg lower extreme, goes up the landing leg upper end and articulates in the wire casing downside.

Preferably, every elevating system all includes two sets of lifting units, and two sets of lifting units set up respectively in the below of wire casing left and right sides.

Preferably, a drip plate frame is arranged above the wire groove on one side of the water inlet end, the drip plate frame is transversely arranged above the wire groove, and a plurality of drip plate holes used for mounting drip plates are formed in the drip plate frame.

Preferably, wire casing both sides are equipped with the mechanism of increaseing that is used for adjusting drip tray frame height, and the mechanism of increaseing includes two lift axles and can follow the lift cover that the lift axle reciprocated, and two lift axle lower extremes are fixed respectively on the last landing leg of left and right sides, be equipped with the retaining member that can lock the lift cover on the lift axle on the lift cover, drip tray frame fixed connection is between two lift covers.

Preferably, the lifting shaft is engraved with length scales for confirming the height of the lifting sleeve.

Preferably, a screen for screening the microcapsules is installed in the bin.

Preferably, still include water circulating system, water circulating system includes consecutive catch basin, cold water machine and circulating pump, and the catch basin links to each other with the workbin, and the circulating pump links to each other with the stock solution bucket.

The beneficial effect of this scheme:

1. the invention realizes the transportation and the molding of the microcapsules by a wire slot transportation mode, has high transportation and molding efficiency and can further improve the production efficiency.

2. The invention can make the whole size of the microcapsules prepared each time consistent through the cooperation of the peristaltic pump and the air flow, the preparation process is easy to control, the repeatability is good, the microcapsules with small difference can be prepared in batches, and better support is provided for industrial production.

3. The invention has simple structure, can realize the rapid batch production of the microcapsules by a multi-wire groove mode, and has high production efficiency.

4. The invention realizes the support of the wire groove through the lifting mechanism, and can adjust the height and the inclination angle of the wire groove according to different types of microcapsules, thereby controlling the conveying time of the microcapsules in the wire groove, realizing the accurate control of the cooling of the microcapsules, avoiding the need of cooling after the microcapsules are collected, and simplifying the production steps.

5. The height adjusting mechanism is arranged to adjust the height of the drip tray, so that the height of the drip tray is controlled, and the dropping height of liquid drops is controlled to adapt to different types of microcapsules.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 1;

FIG. 4 is a schematic view of a lifting mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic view of an elevation mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic view of a drip tray stand according to an embodiment of the present invention;

FIG. 7 is a schematic view of a drip tray in accordance with an embodiment of the present invention;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7;

fig. 9 is a cross-sectional view of C-C in fig. 7.

Reference numerals in the drawings of the specification include: the water storage tank comprises a water storage tank 10, a water cooling machine 20, a peristaltic pump 30, a heat preservation barrel 40, a liquid storage barrel 100, a water outlet connector 101, a wire groove 200, a lifting mechanism 300, a vertical column 301, a screw 302, a hand wheel 303, a support rod 304, an upper support leg 305, a pin shaft 306, a storage box 400, a height adjusting mechanism 500, a lifting shaft 501, a lifting sleeve 502, a handle 503, a dripping system 600, a drip tray frame 601, a quick connector 602, a hand wheel 603, a pressing cover 604, a base 605, a sleeve 606, a liquid inlet connector 607, a gas circuit 608, a gas inlet 609, a threaded connection 6091, a sleeving part 6092, a clamping part 6093, a distribution plate 610, a locking plug 611, a needle body 612, a through needle 613, a mounting seat 614, a gas outlet plug 615, an adjusting pad 616, a guide wall 617 and a guide hole 618.

Detailed Description

The following is further detailed by way of specific embodiments:

the embodiment is basically as shown in the attached figure 1: a microcapsule preparation device comprises a heat preservation system, a dripping system 600, a conveying and forming system and a collecting system, wherein the heat preservation system enables a gel solution to be kept in a liquid state all the time, the dripping system 600 processes the gel solution into a liquid drop shape and conveys the liquid drop shape to the conveying and forming system, the liquid reacts and forms microcapsules in the conveying and forming system, and the collecting system separates and collects the microcapsules and a coating liquid.

The microcapsule preparation device further comprises a rack for supporting the heat preservation system, the dripping system 600 and the conveying and forming system or components in the systems, wherein the heat preservation system comprises a heat preservation barrel 40, the heat preservation barrel 40 is fixedly mounted on the rack through screws, the heat preservation barrel 40 is used for containing gel solution, a heating mechanism for heating is arranged on the heat preservation barrel 40, and the heating mechanism in the embodiment is electric heating wires arranged on the bottom and the side wall of the heat preservation barrel 40 and can realize heating and heat preservation for supplying power to the electric heating wires.

Referring to fig. 2 and 3, the conveying and molding system includes a liquid storage barrel 100 and a plurality of wire slots 200, the liquid storage barrel 100 is used for containing coating liquid which reacts with the gel solution, and the liquid storage barrel 100 is also fixed on the frame by screws. The wire slots 200 are elongated slots, and in this embodiment, a plurality of wire slots 200 are arranged side by side and are bonded into a whole.

The lower side of the wire casing 200 is provided with a plurality of lifting mechanisms 300 for supporting the height of the wire casing 200 and adjusting the height of the wire casing 200, four lifting mechanisms 300 are arranged from left to right in the embodiment, each lifting mechanism 300 comprises two groups of lifting assemblies, and the two groups of lifting assemblies are respectively arranged below two sides of the whole wire casing 200 to ensure the stability of the wire casing 200. Referring to fig. 3 and 4, each lifting assembly includes a lower leg, an upper leg 305 and an adjusting mechanism, the lower leg includes two vertical pillars 301, two support rods 304 are fixed between the two pillars 301 to form a rectangular frame, and a fixing rod is connected between the support rods 304 of two lifting assemblies of the same lifting mechanism 300 to form a stable support frame for the two sets of lower legs. The adjusting mechanism comprises a screw 302, a hand wheel 303 and three nuts, the nuts are all sleeved on the screw 302 in a threaded manner, and the hand wheel 303 is fixed in the middle of the screw 302. The bracing piece 304 of lower landing leg has been seted up movable chamber, and the through-hole that supplies screw rod 302 to pass has all been seted up at activity chamber bottom and top, is fixed with the stopper with the activity hole adaptation on the screw rod 302, and the stopper can be in the rotation in activity chamber, and the stopper sectional area is greater than the through-hole sectional area and makes it can not pass the through-hole, and activity chamber trailing flank is equipped with the breach that supplies the movable block to get into, and wherein two nuts are located the upper and lower both sides of bracing piece 304 respectively. The upper supporting leg 305 is a rod piece with a cavity inside, a screw hole matched with the screw rod 302 is formed in the bottom of the upper supporting leg 305, the screw thread between the screw rod 302 and the screw hole is not self-locked, the upper part of the screw rod 302 is in threaded fit with the screw hole of the upper supporting leg 305, and one nut is located near the bottom of the upper supporting leg 305. The upper end of the upper supporting leg 305 is hinged with the lower side of the wire casing 200, specifically, the lower side of the whole wire casing 200 is fixed with a pin shaft 306, the top of the upper supporting leg 305 is provided with a pin hole matched with the pin shaft 306, and the wire casing 200 and the upper supporting leg 305 can be hinged through the matching of the pin shaft 306 and the pin hole. When the height needs to be adjusted, three nuts are unscrewed, then the screw 302 is screwed, the upper supporting leg 305 rises or falls due to the threaded fit between the screw 302 and the upper supporting leg 305, that is, the height adjustment of the trunking 200 is realized, after the height adjustment is completed, two bolts adjacent to the supporting rod 304 are screwed towards the supporting rod 304, the bolt adjacent to the upper supporting leg 305 is screwed towards the upper supporting leg 305, and the fixing of the lifting mechanism 300 can be realized.

In this embodiment, the heights of the four elevating mechanisms 300 supporting the wire chase 200 are sequentially reduced from left to right, so that the wire chase 200 is entirely inclined in a state of being high on the left and low on the right. The left end of the wire chase 200 is a water inlet end, the right end is a water outlet end, and the leftmost elevating mechanism 300 is located on the right side of the water inlet end and adjacent to the water inlet end.

The length of the liquid storage barrel 100 is slightly larger than the width of the whole line groove 200, the whole height of the liquid storage barrel 100 is higher than the height of the water inlet end of the line groove 200, a plurality of water outlet connectors 101 are installed on the right side wall of the liquid storage barrel 100, the number of the water outlet connectors 101 is the same as that of the line grooves 200, the water outlet connectors 101 are respectively located above the water inlet end of each line groove 200, and liquid in the liquid storage barrel 100 can flow into the line grooves 200 through the water outlet connectors 101.

The drip material system 600 comprises a drip tray frame 601, a delivery pump and a plurality of drip trays, and referring to fig. 6, the drip tray frame 601 is a strip-shaped long plate, and a plurality of drip tray holes for mounting the drip trays are formed on the drip tray frame 601. The height adjusting mechanism 500 for adjusting the height of the drip tray frame 601 is arranged on two sides of the trunking 200, referring to fig. 5, the height adjusting mechanism 500 comprises two lifting shafts 501, the two lifting shafts 501 are respectively fixed on two upper supporting legs 305 of the leftmost lifting mechanism 300 through supporting rods and screws, and the upper half parts of the two lifting shafts 501 are located above the trunking 200. All slidable mounting has lift cover 502 on every lift axle 501, be equipped with on the lift cover 502 and can lock the retaining member of lift cover 502 on lift axle 501, specifically, the locking screw has been seted up to one side that lift cover 502 kept away from wire casing 200, the locking screw extends to lift axle 501 by lift cover 502 lateral wall, screw-thread fit has the retaining member on the locking screw, the retaining member includes threaded shaft and handle 503, handle 503 is fixed at the threaded shaft left end, threaded shaft screw-thread fit is in the locking screw and threaded shaft length is greater than the degree of depth of locking screw. Two sides of the drip tray frame 601 are respectively fixed on the lifting sleeves 502 on two sides through screws. To clarify the exact value of the height adjustment, a length scale is engraved on the lifting shaft 501. When heightening, the retaining member is loosened, the lifting sleeve 502 is made to move along the lifting shaft 501, and after the heightening is completed, the retaining member is screwed down to make the threaded shaft tightly abut against the lifting shaft 501, so that the height of the lifting sleeve 502 can be fixed.

Referring to fig. 7-9, the drip tray is a disc-shaped structure, specifically, the drip tray includes a base 605 and a pressing cover 604, the pressing cover 604 is fixedly mounted on the base 605, and a cavity is formed inside the drip tray, that is, a cavity is formed between the base 605 and the pressing cover 604. The cavity is provided with a distribution plate 610, the edge part of the distribution plate 610 is tightly clamped between the pressing cover 604 and the base 605, and O-shaped sealing rings are arranged between the distribution plate 610 and the pressing cover 604 and between the distribution plate and the base 605 for ensuring the sealing performance in the cavity.

The distribution plate 610 separates the upper part and the lower part of the cavity into a liquid inlet cavity and an air cavity which are mutually independent, correspondingly, a liquid inlet structure communicated with the liquid inlet cavity and an air inlet structure communicated with the air cavity are arranged on the drip tray, the liquid inlet structure comprises a liquid inlet which is arranged on the pressing tray and is communicated with the liquid inlet cavity, a liquid inlet connector 607 is arranged on the liquid inlet, and the liquid inlet connector 607 is connected with a material pipe connected with the end of the peristaltic pump 30. The air inlet structure comprises a cylindrical air inlet seat 609, and the middle part of the air inlet seat 609 is provided with an air passage 608 communicated with the air inlet cavity.

The air inlet seat 609 is divided into a threaded connection part 6091, a sleeving part 6092 and a clamping part 6093 from top to bottom according to different functions, and the outer diameters of the threaded connection part 6091, the sleeving part 6092 and the clamping part 6093 are increased progressively in sequence. The through-hole has all been seted up at the middle part that compresses tightly lid 604, distributing plate 610 and base 605, and the diameter and the suit portion 6092 external diameter adaptation of through-hole, and suit portion 6092 can pass the through-hole promptly. The clamping part 6093 is positioned in the air inlet cavity, and the diameter of the clamping part 6093 is larger than that of the through hole.

A fixing column matched with the diameter of the through hole is arranged below the clamping part 6093, the fixing column is inserted into the through hole of the base 605 and is welded and fixed, and even if the air inlet seat 609 is fixed with the base 605, the distribution plate 610 is abutted to the upper surface of the clamping part 6093. The sleeving part 6092 extends from the through hole of the distribution plate 610 to the through hole of the pressing cover 604, the part of the sleeving part 6092, which is positioned in the liquid inlet cavity, is sleeved with a sleeve 606, the upper end and the lower end of the sleeve 606 are respectively abutted against the pressing cover 604 and the distribution plate 610, and the top and the bottom of the sleeve 606 are respectively provided with an O-shaped sealing ring. Threaded connection portion 6091 is located suit portion 6092 top, be equipped with the external screw thread on the air inlet 609 surface of threaded connection portion 6091 department, threaded connection portion 6091 goes up the screw thread and has cup jointed hand wheel 303 and quick-operation joint 602, hand wheel 303 is located the below of quick-operation joint 602, hand wheel 303 is used for compressing tightly the lid 604 on base 605, make and compress tightly between lid 604 and the base 605 and closely cooperate, quick-operation joint 602 and the interior gas circuit 608 intercommunication of air inlet 609 just are convenient for external air supply. During installation, the distribution plate 610 and the pressing cover 604 are sequentially sleeved on the sleeving part 6092 of the air inlet seat 609, then the hand wheel 303 is in threaded sleeve connection with the threaded connection part 6091, then the hand wheel 303 is screwed to enable the hand wheel 303 to continuously press the pressing cover 604 downwards until the hand wheel 303 is screwed, at the moment, the pressing cover 604 is pressed on the base 605 by the hand wheel 303, and then the quick connector 602 is screwed on the upper part of the air inlet seat 609.

At least one air outlet is formed in the base 605, two air outlets are formed in the embodiment, each air outlet is provided with an air outlet seat, and each air outlet seat comprises a mounting seat 614 and an air outlet plug 615. The mount pad 614 welds in gas outlet department, and mount pad 614 is inside cavity both ends open-ended columnar structure, and the hole of mount pad 614 is the shoulder hole, and the diameter of hole lower part is greater than the diameter on hole upper portion. The air outlet plug 615 is also of a cylindrical structure, the air outlet plug 615 is detachably connected to the lower portion of the inner hole of the mounting seat 614, specifically, the air outlet plug 615 and the mounting seat 614 may be fixed in a threaded connection manner, or may be fixed in an insertion or clamping manner, in this embodiment, the air outlet plug 615 and the mounting seat 614 are fixed in a threaded connection manner. An air hole and a diversion hole 618 are formed in the air outlet plug 615, and the air hole is located in the upper portion of the air outlet plug 615 and is the same as the diameter of an inner hole in the upper portion of the mounting seat 614. The lower part of the air hole is provided with a guide wall 617, the guide wall 617 gradually extends from the inner wall of the air hole to the center line direction of the air hole, one side of the guide wall 617 close to the center line of the air hole is inclined downwards, and the inner hole of the guide wall 617 extending to the middle part forms the above-mentioned diversion hole 618.

Two mounting holes are formed in the distribution plate 610, and the two air outlets are respectively opposite to the two mounting holes one by one up and down. Each mounting hole is internally provided with a gas outlet structure, the gas outlet structure comprises a through needle body 612, a through needle 613 and a locking plug 611, the through needle body 612 is welded in the mounting hole, a stepped hole matched with a needle seat of the through needle 613 is formed in the through needle body 612, the needle seat of the through needle 613 is in clearance-free fit with the stepped hole when the through needle 613 is inserted into the stepped hole of the through needle body 612, the locking plug 611 is fixed with the upper part of the stepped hole through threads, and the locking plug 611 compresses the through needle 613 in the stepped hole of the through needle body 612. After the installation, the lower end of the through needle 613 is located at the diversion hole 618 of the air outlet seat, and the lower end of the through needle 613 is substantially flush with the lower end of the diversion hole 618. In order to improve the stability of the through pin 613, an adjusting pad 616 is clamped between the vent plug 615 and the mounting seat 614, the adjusting pad 616 is in a strip shape, and a positioning hole matched with the through pin 613 is formed in the middle of the adjusting pad 616.

Each drip plate corresponds to two wire slots 200, that is, two through needles 613 of each drip plate are respectively positioned right above two adjacent single wire slots 200.

The conveying pump in the embodiment is a peristaltic pump 30, a plurality of material pipes are arranged on the peristaltic pump 30, the number of the material pipes is the same as that of the drip trays, and the two ends of each material pipe are respectively connected with a heat-insulating barrel 40 and the drip trays.

The collecting system comprises a feed box arranged below the water outlet end of the wire groove 200, and the middle part of the feed box is provided with a screen capable of blocking the microcapsules. In addition, the embodiment of the invention also comprises a water circulating system, wherein the water circulating system comprises a water storage tank 10, a water cooling machine 20 and a circulating pump which are sequentially connected, the water storage tank 10 is connected with the material box, and the circulating pump is connected with the liquid storage barrel 100. When the device is used, microcapsules on the wire groove 200 flow into the tank under the driving of the coating liquid, the microcapsules are collected on the screen, the coating liquid flows into the water storage tank 10 through the screen, then flows into the water cooling machine 20 for cooling, and finally is conveyed into the liquid storage barrel 100 through the circulating pump, so that the coating liquid is reused.

The principle of the scheme is as follows: the connector at the bottom of the liquid storage barrel 100 is opened, the coating liquid in the liquid storage barrel 100 flows into the wire groove 200, then the coating liquid flows into the material box along the wire groove 200, meanwhile, the peristaltic pump 30 is started, the peristaltic pump 30 conveys the material to the drip plate, the material enters the liquid inlet cavity of the drip plate, and meanwhile, the gas supply source is started to convey gas into the gas inlet seat 609. Since the distribution plate 610 is provided with the through needle 613 communicated with the liquid inlet chamber, the material flows into the through needle 613 and flows down along the through needle 613, and drops form a drop shape when the liquid material flows to the lower port of the through needle 613, and the flow rate of the peristaltic pump 30 is controlled such that the liquid drop delivery pump rotates for every drop of the liquid drop through the through needle 613, thereby controlling the size and the flow rate of the liquid drop for every drop to be consistent. In this process, the gas flows into the gas chamber from the gas inlet 609 and then flows into the gas hole, because the lower end of the through needle 613 is located at the gas hole, and the lower side of the gas hole is provided with the guide wall 617 for guiding the gas to the lower part of the through needle 613, when the gas flows out of the gas hole, an air flow is formed at the opening at the lower end of the through needle 613, when the liquid drops are formed at the lower end of the liquid through needle 613, the air flow can apply a downward force to the liquid drops to separate the liquid drops from other liquid in the through needle 613, and the size of the air flow can be controlled by the gas supply source, so that the size of the liquid drops can be controlled by the air flow and the peristaltic pump 30, and the difference of the prepared microcapsules cannot be too large.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection determined by the claims.

Claims

1. A microcapsule preparation device is characterized in that: comprises a heat preservation system, a dripping system (600), a conveying and forming system, a collecting system and a rack;

the conveying and forming system comprises a wire groove (200) and a liquid storage barrel (100) containing cladding liquid, wherein the two ends of the wire groove (200) are respectively provided with a water inlet end and a water outlet end, the wire groove (200) is obliquely arranged with the water inlet end higher than the water outlet end, and the liquid storage barrel (100) is provided with a water outlet connector (101) connected with the water inlet end of the wire groove (200);

the material dripping system (600) comprises a conveying pump and a dripping disc, wherein the conveying pump is used for conveying materials to the dripping disc, the dripping disc is positioned on one side of the water inlet end of the wire groove (200), a cavity is formed in the dripping disc, a distribution plate (610) is arranged in the cavity, and the upper portion and the lower portion of the cavity are divided into a liquid inlet cavity and an air cavity by the distribution plate (610); the drip plate is provided with an air inlet seat (609) connected with an air supply source, the lower end of the air inlet seat (609) extends downwards into the air cavity and is communicated with the air cavity, the bottom wall of the drip plate is at least provided with an air outlet seat, and the air outlet seat is internally provided with an air hole communicated with the air cavity and the outside of the air cavity;

the lower part of the air hole is provided with a guide wall (617), the guide wall (617) gradually extends from the inner wall of the air hole to the central line direction of the air hole, one side of the guide wall (617) close to the central line of the air hole is inclined downwards, and an inner hole of the guide wall (617) extending to the middle part forms a flow guide hole (618);

at least one through needle (613) is arranged on the lower side of the distribution plate (610), the upper end of the through needle (613) is communicated with the liquid inlet cavity, the lower end of the through needle (613) extends downwards into a gas hole of the gas outlet seat, a guide wall (617) for guiding gas to the lower part of the through needle (613) is arranged in the gas hole, and the through needle (613) is positioned right above the wire groove (200);

the collecting system comprises a bin for collecting the microcapsules, and the bin is positioned below the water outlet end of the trunking (200);

the microcapsule preparation device also comprises a frame for providing support for the heat preservation system, the dripping system (600) and the conveying and forming system or the components in the systems;

the air inlet seat (609) is divided into a threaded connection part (6091), a sleeving part (6092) and a clamping part (6093) from top to bottom, and the outer diameters of the threaded connection part (6091), the sleeving part (6092) and the clamping part (6093) are sequentially increased;

through holes are formed in the middle parts of the pressing cover (604), the distribution plate (610) and the base (605), and the diameter of each through hole is matched with the outer diameter of the sleeving part (6092);

the clamping part (6093) is positioned in the air inlet cavity, the diameter of the clamping part (6093) is larger than that of the through hole, a fixing column matched with the diameter of the through hole is arranged below the clamping part (6093), and the fixing column is inserted into the through hole of the base (605) and is welded and fixed;

the sleeving part (6092) extends to the through hole of the pressing cover (604) from the through hole of the distribution plate (610), a sleeve (606) is sleeved on the part, located in the liquid inlet cavity, of the sleeving part (6092), the upper end and the lower end of the sleeve (606) are respectively abutted against the pressing cover (604) and the distribution plate (610), and O-shaped sealing rings are arranged on the top and the bottom of the sleeve (606);

the threaded connection part (6091) is positioned above the sleeving part (6092), the outer surface of the air inlet seat (609) at the threaded connection part (6091) is provided with an external thread, the threaded connection part (6091) is in threaded sleeve connection with a hand wheel (303) and a quick connector (602), the hand wheel (303) is positioned below the quick connector (602), the hand wheel (303) is used for pressing the pressing cover (604) on the base (605), so that the pressing cover (604) is tightly matched with the base (605), and the quick connector (602) is communicated with an air passage (608) in the air inlet seat (609);

the air outlet seat comprises a mounting seat (614) and an air outlet plug (615); an adjusting pad (616) is clamped between the air outlet plug (615) and the mounting seat (614), the adjusting pad (616) is in a strip shape, and a positioning hole matched with the through needle (613) is formed in the middle of the adjusting pad (616).

2. A microcapsule preparation apparatus according to claim 1, wherein: the trunking (200) has a plurality of, the quantity of leading to needle (613) and water connectors (101) is unanimous with trunking (200) quantity, the liquid outlet of delivery pump is unanimous with drip tray quantity.

3. A microcapsule preparation apparatus according to claim 2, wherein: a plurality of lifting mechanisms (300) used for adjusting the height of the wire casing (200) are arranged on the lower side of the wire casing (200).

4. A microcapsule preparation apparatus according to claim 3, wherein: elevating system (300) include at least a set of lifting unit, and lifting unit includes landing leg down, goes up landing leg (305) and adjusts the structure, and the landing leg is supported on the ground down, adjusts the structure and includes screw rod (302) of threaded connection on the landing leg down, fixedly connected with hand wheel (303) on screw rod (302), screw rod (302) upper end threaded connection in last landing leg (305) lower extreme, goes up landing leg (305) upper end and articulates in wire casing (200) downside.

5. A microcapsule preparation apparatus according to claim 3, wherein: each lifting mechanism (300) comprises two groups of lifting components which are respectively arranged below the left side and the right side of the wire groove (200).

6. A microcapsule preparation apparatus according to claim 5, wherein: a drip tray frame (601) is arranged above the wire groove (200) on one side of the water inlet end, the drip tray frame (601) is transversely arranged above the wire groove (200), and a plurality of drip tray holes used for mounting drip trays are formed in the drip tray frame (601).

7. A microcapsule preparation apparatus according to claim 6, wherein: wire casing (200) both sides are equipped with and are used for adjusting the mechanism (500) of increaseing of dripping dish frame (601) height, and the mechanism (500) of increaseing includes two lift axle (501) and can follow lift cover (502) that lift axle (501) reciprocated, and two lift axle (501) lower extremes are fixed respectively on the last leg (305) of controlling both sides, be equipped with on lift cover (502) and lock the retaining member on lift axle (501) with lift cover (502), drip dish frame (601) fixed connection is between two lift covers (502).

8. A microcapsule preparation apparatus according to claim 7, wherein: the lifting shaft (501) is provided with length scales for confirming the height of the lifting sleeve (502).

9. A microcapsule preparation apparatus according to any one of claims 4 to 8, wherein: and a screen for screening the microcapsules is arranged in the feed box.

10. A microcapsule preparation apparatus according to claim 9, wherein: the water circulation system comprises a water storage tank (10), a water cooling machine (20) and a circulating pump which are sequentially connected, wherein the water storage tank (10) is connected with a material box, and the circulating pump is connected with a liquid storage barrel (100).