CN112781336A - Spiral semi-automatic drying tank - Google Patents
Spiral semi-automatic drying tank Download PDFInfo
- Publication number
- CN112781336A CN112781336A CN202010894590.2A CN202010894590A CN112781336A CN 112781336 A CN112781336 A CN 112781336A CN 202010894590 A CN202010894590 A CN 202010894590A CN 112781336 A CN112781336 A CN 112781336A
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- China
- Prior art keywords
- tank
- cover
- spiral
- pipe
- automatic drying
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/12—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices
- F26B11/14—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices the stirring device moving in a horizontal or slightly-inclined plane
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/08—Parts thereof
- F26B25/12—Walls or sides; Doors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a spiral semi-automatic drying tank which comprises a support ring, wherein a tank body mechanism is arranged at the bottom of the support ring, the tank body mechanism consists of an outer tank, an inner tank, a heating pipe, a third sealing cover and support columns, the number of the support columns is four, a tank cover mechanism is arranged at the top of the support ring, the tank cover mechanism consists of a tank cover, a feeding pipe and a first sealing cover, a spiral stirring mechanism is arranged between the tank cover and the inner tank, the spiral stirring mechanism consists of a motor, a rotary table, two first connecting rods, two connectors, two spiral rods, two second connecting rods and two scraping plates, a dehumidifying mechanism is arranged on the left side of the top of the tank cover, and the dehumidifying mechanism consists of a fan, a first conveying pipe, a dehumidifying tank, a second sealing cover, a second conveying pipe and a. According to the invention, the second connecting rod and the scraper are driven to rotate by the turntable, and materials attached to the inner wall of the inner tank can be scraped by the scraper, so that the condition that the drying is influenced by the materials attached to the inner wall of the inner tank is reduced.
Description
Technical Field
The invention relates to a drying tank, in particular to a spiral semi-automatic drying tank.
Background
Drying refers to a process of gasifying moisture (or solvent) in a material by heat energy and taking away generated steam by inert gas in chemical industry, for example, when drying a solid, the moisture (or solvent) diffuses from the inside of the solid to the surface and then gasifies from the surface of the solid, and drying can be divided into natural drying and artificial drying, and there are methods such as vacuum drying, freeze drying, air flow drying, microwave drying, infrared drying and high-frequency drying.
The common drying equipment for drying the materials is provided with a spiral semi-automatic drying tank, but the materials can be attached to the inner wall of the existing spiral semi-automatic drying tank in the using process, so that the drying of the materials is influenced. We have therefore developed this and propose a spiral semi-automatic drying cylinder.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a spiral semi-automatic drying tank, which comprises a support ring, wherein a tank body mechanism is arranged at the bottom of the support ring, the tank body mechanism consists of an outer tank, an inner tank, a heating pipe, a third sealing cover and four supporting columns, the top of the supporting ring is provided with a tank cover mechanism which consists of a tank cover, a feeding pipe and a first sealing cover, a spiral stirring mechanism is arranged between the tank cover and the inner tank and consists of a motor, a rotating disc, two first connecting rods, two connectors, two spiral rods, two second connecting rods and two scraping plates, the left side at cover top is provided with dehumidification mechanism, dehumidification mechanism comprises fan, first conveyer pipe, dehumidification jar, the sealed lid of second, second conveyer pipe and third conveyer pipe, a plurality of bags silica gel drier in bags have been placed to dehumidification jar inside.
According to a preferable technical scheme, the outer tank and the inner tank are fixedly mounted at the bottom of the support ring, the inner tank is located inside the outer tank, the bottom end of the inner tank penetrates through the outer tank, extends to the outside of the bottom end of the outer tank and is in threaded connection with the third sealing cover, the heating pipe is wound on the outer surface of the inner tank, a temperature control switch is connected outside the heating pipe, and the temperature control switch is electrically connected with an external power supply.
As a preferable technical scheme of the invention, the tank cover is arranged at the top of the support ring through bolts, the feeding pipe is fixedly communicated with one side of the top of the tank cover, and the first sealing cover is in threaded connection with the top of the feeding pipe.
As a preferable technical scheme of the invention, the motor is fixedly arranged in the middle of the top end of the tank cover, an output shaft of the motor penetrates through the tank cover, extends into the inner tank and is fixedly connected with the top end of the rotating disc, and a sealing bearing is arranged at the connection position of the output shaft of the motor and the inner wall of the tank cover.
As a preferred technical solution of the present invention, the two first connecting rods and the two second connecting rods are crossed with each other and fixedly installed on the outer surface of the turntable at equal intervals, the two connectors are respectively and fixedly installed on the ends far away from the two first connecting rods, the two screw rods are respectively and fixedly installed on the output shafts of the two connectors, and the two scrapers are respectively and fixedly installed on the ends far away from the two second connecting rods.
As a preferred technical scheme of the invention, an air inlet of the fan is fixedly communicated with the top of the tank cover, an air outlet of the fan is fixedly communicated with one end of a first conveying pipe, the other end of the first conveying pipe is fixedly communicated with the right side surface of the dehumidification tank, and the second sealing cover is in threaded connection with the top of the dehumidification tank.
As a preferable technical solution of the present invention, one end of the second delivery pipe is fixedly communicated with the left side surface of the dehumidification tank, the other end of the second delivery pipe is connected to one end of a third delivery pipe through a flange, and the other end of the third delivery pipe sequentially penetrates through the outer tank and the inner tank and extends to the inside of the inner tank.
As a preferable technical scheme of the invention, the four support columns are all fixedly arranged on the outer surface of the outer tank and are distributed annularly and equidistantly.
The invention has the beneficial effects that:
1. according to the spiral semi-automatic drying tank, the motor drives the rotary table to rotate, the rotary table drives the second connecting rod and the scraper plate to rotate, and materials attached to the inner wall of the inner tank can be scraped off through the scraper plate, so that the condition that drying is influenced due to the fact that the materials are attached to the inner wall of the inner tank is reduced;
2. according to the spiral semi-automatic drying tank, the fan can pump steam generated in the heating and drying process in the inner tank into the dehumidifying tank through the first conveying pipe, and the steam can be adsorbed and dried through the bagged silica gel drying agent, so that the condition that the steam accumulation in the inner tank affects the drying of materials is reduced;
3. according to the spiral semi-automatic drying tank, air which is adsorbed by the bagged silica gel drying agent and carries heat can flow back into the inner tank through the second conveying pipe and the third conveying pipe, so that hot air circulation is realized, and heat loss can be reduced;
4. this kind of spiral semi-automatic drying cylinder can make the sealed lid of second and the separation of dehumidification jar through rotating the sealed lid of second to can take out the inside silica gel drier in bags of dehumidification jar, and then be convenient for change the silica gel drier in bags.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a spiral semi-automatic dryer vessel according to the present invention;
FIG. 2 is a schematic cross-sectional view of the outer tank of a spiral semi-automatic dryer vessel of the present invention;
FIG. 3 is a schematic cross-sectional view of the inner tank of a spiral semi-automatic dryer vessel according to the present invention;
FIG. 4 is a schematic right sectional view of the inner tank of the spiral semi-automatic dryer of the present invention;
FIG. 5 is a schematic view of the screw and flight configuration of a spiral semi-automatic dryer vessel according to the present invention;
fig. 6 is an enlarged schematic view of a spiral semi-automatic drying cylinder of the present invention at a point a in fig. 3.
In the figure: 1. a support ring; 2. an outer tank; 3. an inner tank; 4. heating a tube; 5. a can lid; 6. a feed tube; 7. a first sealing cover; 8. a motor; 9. a turntable; 10. a first connecting rod; 11. a connector; 12. a screw rod; 13. a second connecting rod; 14. a squeegee; 15. a fan; 16. a first delivery pipe; 17. a dehumidification tank; 18. a second sealing cover; 19. a silica gel desiccant is packed in the bag; 20. a second delivery pipe; 21. a third delivery pipe; 22. a support pillar; 23. and a third sealing cover.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-6, the invention relates to a spiral semi-automatic drying tank, which comprises a supporting ring 1, a tank body mechanism is arranged at the bottom of the supporting ring 1, the tank body mechanism consists of an outer tank 2, an inner tank 3, a heating pipe 4, a third sealing cover 23 and supporting columns 22, the number of the supporting columns 22 is four, a tank cover mechanism is arranged at the top of the supporting ring 1, the tank cover mechanism consists of a tank cover 5, a feeding pipe 6 and a first sealing cover 7, a spiral stirring mechanism is arranged between the tank cover 5 and the inner tank 3, the spiral stirring mechanism consists of a motor 8, a rotating disc 9, two first connecting rods 10, two connecting heads 11, two spiral rods 12, two second connecting rods 13 and two scraping plates 14, a dehumidifying mechanism is arranged at the left side of the top of the tank cover 5, and the dehumidifying mechanism consists of a fan 15, a first conveying pipe 16, a dehumidifying tank 17, a second sealing cover 18, a second, a plurality of bags of silica gel desiccant 19 are placed inside the dehumidification tank 17.
Wherein, outer jar 2 and the equal fixed mounting of inner tank 3 are in the bottom of support ring 1, inner tank 3 is located the inside of outer jar 2, the bottom of inner tank 3 runs through outer jar 2 and extends to the outside of outer jar 2 bottom and with the sealed 23 threaded connection of lid of third, heating pipe 4 winding is at the surface of inner tank 3, heating pipe 4 is external to have temperature detect switch, temperature detect switch and external power supply electric connection, can dry the inside material of inner tank 3 through heating pipe 4 to inner tank 3 heating, temperature detect switch can control the temperature of heating pipe 4.
Wherein, cover 5 passes through the bolt and installs at the top of support ring 1, the fixed intercommunication in one side at cover 5 top of filling tube 6, 7 threaded connection of first sealed lid at the top of filling tube 6, can seal filling tube 6 through setting up first sealed lid 7, it can be to 3 inside add materials of inner tank through filling tube 6 to rotate first sealed lid 7 and make behind first sealed lid 7 and the 6 separation of filling tube, can separate cover 5 and support ring 1 after twisting the bolt of connecting cover 5 and support ring 1.
Wherein, motor 8 fixed mounting is at the middle part on 5 tops of cover, motor 8's output shaft run through cover 5 and extend to inner tank 3's inside and with carousel 9's top fixed connection, motor 8's output shaft is provided with sealed bearing with the junction of 5 inner walls of cover, drive carousel 9 through motor 8 and rotate, carousel 9 drives connector 11 and hob 12 rotation and turns over the inside material of inner tank 3 through first connecting rod 10, thereby make the material drying more even.
Wherein, two head rods 10 and two second connecting rods 13 intercrossing and equidistance fixed mounting are at the surface of carousel 9 with two second connecting rods 13, two connectors 11 are fixed mounting respectively and are served at one that two head rods 10 kept away from mutually, two hob 12 are fixed mounting respectively on the output shaft of two connectors 11, two scraper blades 14 are fixed mounting respectively and are served at one that two second connecting rods 13 kept away from each other, drive second connecting rod 13 and scraper blade 14 through carousel 9 simultaneously and rotate, can scrape adnexed material down on inner tank 3 inner wall through scraper blade 14, thereby reduce the material and adhere to on inner tank 3's inner wall and influence the dry condition.
Wherein, the air intake of fan 15 and the fixed intercommunication in top of cover 5, the air outlet of fan 15 and the fixed intercommunication of one end of first conveyer pipe 16, the other end of first conveyer pipe 16 and the fixed intercommunication in right flank of dehumidification jar 17, 18 threaded connection at the top of dehumidification jar 17 are sealed to the second, fan 15 can be with in 3 interior steam suction dehumidification jars 17 that heat drying process produced of inner tank through first conveyer pipe 16, can adsorb the drying to steam through silica gel desiccant 19 in bags, thereby reduce 3 inside steam of inner tank and pile up and influence the dry condition of material, the model that fan 15 is applicable is SF1.5-2R type fan, fan 15 is external to have control switch, control switch and external power supply electric connection.
Wherein, the one end of second conveyer pipe 20 and the fixed intercommunication of the left surface of dehumidification jar 17, the other end of second conveyer pipe 20 passes through the flange and links to each other with the one end of third conveyer pipe 21, the other end of third conveyer pipe 21 runs through outer jar 2 and inner tank 3 in proper order and extends to the inside of inner tank 3, the air that is adsorbed by bagged silica gel drier 19 and carries with heat can flow back to inner tank 3 in through second conveyer pipe 20 and third conveyer pipe 21, thereby realize hot-blast circulation and can reduce thermal stream, pass through flange joint between second conveyer pipe 20 and the third conveyer pipe 21, consequently, can break off between second conveyer pipe 20 and the third conveyer pipe 21, thereby avoid second conveyer pipe 20 and third conveyer pipe 21 to influence the separation of cover 5 and support ring 1.
Wherein, four equal fixed mounting of support column 22 are the surface of outer jar 2, and four support columns 22 are annular and equidistance and distribute, can support outer jar 2 through setting up four support columns 22, and four support columns 22 are annular and equidistance and distribute and can improve the stability of this drying cabinet.
When the drying device works, the first sealing cover 7 is firstly rotated to separate the first sealing cover 7 from the feeding pipe 6, then materials to be dried are added into the inner tank 3 through the feeding pipe 6, then the first sealing cover 7 is screwed on the feeding pipe 6, the temperature of the heating pipe 4 is set through the temperature control switch according to the actual conditions of the materials, the heating pipe 4 heats and dries the materials in the inner tank 3 through the inner tank 3, the motor 8 and the fan 15 are started, the motor 8 drives the turntable 9 to rotate, the turntable 9 drives the connector 11 and the spiral rod 12 to rotate through the first connecting rod 10 and turns over the materials in the inner tank 3, meanwhile, the turntable 9 drives the second connecting rod 13 and the scraper 14 to rotate, the materials attached to the inner wall of the inner tank 3 can be scraped through the scraper 14, so that the drying condition caused by the materials attached to the inner wall of the inner tank 3 is reduced, and in the drying process, the fan 15 can suck the steam generated in the heating and drying process in the inner tank 3 into the dehumidifying tank 17 through the first conveying pipe 16, and the steam can be adsorbed and dried through the bagged silica gel desiccant 19, so that the condition that the drying of the material is affected by the accumulation of the steam in the inner tank 3 is reduced, the air which is adsorbed by the bagged silica gel desiccant 19 and carries heat can flow back into the inner tank 3 through the second conveying pipe 20 and the third conveying pipe 21, so that the circulation of hot air is realized, the loss of heat can be reduced, the operation of the drying tank is stopped after the drying is completed, then the third sealing cover 23 is rotated to separate the third sealing cover 23 from the inner tank 3, so that the material in the inner tank 3 can be discharged, when the bagged silica gel desiccant 19 needs to be replaced, the second sealing cover 18 is rotated to separate the second sealing cover 18 from the dehumidifying tank 17, so that the bagged silica gel desiccant 19 in the dehumidifying tank 17 can be taken out, then, the new bagged silica gel desiccant 19 is put into the dehumidification tank 17, and the second sealing cover 18 is screwed on the dehumidification tank 17, so that the bagged silica gel desiccant 19 can be conveniently replaced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A spiral semi-automatic drying tank is characterized by comprising a support ring (1), wherein a tank body mechanism is arranged at the bottom of the support ring (1), the tank body mechanism consists of an outer tank (2), an inner tank (3), a heating pipe (4), a third sealing cover (23) and supporting columns (22), the number of the supporting columns (22) is four, a tank cover mechanism is arranged at the top of the support ring (1), the tank cover mechanism consists of a tank cover (5), a feeding pipe (6) and a first sealing cover (7), a spiral stirring mechanism is arranged between the tank cover (5) and the inner tank (3), and the spiral stirring mechanism consists of a motor (8), a turntable (9), two first connecting rods (10), two connectors (11), two spiral rods (12), two second connecting rods (13) and two scraping plates (14), the utility model discloses a dehumidifying device, including cover (5), dehumidification jar (17), sealed lid (18), second conveyer pipe (20) and third conveyer pipe (21), the left side at cover (5) top is provided with dehumidification mechanism, dehumidification mechanism comprises fan (15), first conveyer pipe (16), dehumidification jar (17), second, and a plurality of bags silica gel drier (19) in bags have been placed to dehumidification jar (17) inside.
2. A spiral semi-automatic drying tank according to claim 1, characterized in that the outer tank (2) and the inner tank (3) are both fixedly mounted at the bottom of the support ring (1), the inner tank (3) is located inside the outer tank (2), the bottom end of the inner tank (3) penetrates through the outer tank (2) and extends to the outside of the bottom end of the outer tank (2) and is in threaded connection with the third sealing cover (23), the heating pipe (4) is wound on the outer surface of the inner tank (3), the heating pipe (4) is externally connected with a temperature control switch, and the temperature control switch is electrically connected with an external power supply.
3. A spiral semi-automatic drying cylinder according to claim 1, characterized in that the cylinder cover (5) is mounted on the top of the support ring (1) by bolts, the feeding pipe (6) is fixedly communicated with one side of the top of the cylinder cover (5), and the first sealing cover (7) is screwed on the top of the feeding pipe (6).
4. A spiral semi-automatic drying tank according to claim 1, characterized in that the motor (8) is fixedly installed in the middle of the top end of the tank cover (5), the output shaft of the motor (8) penetrates through the tank cover (5) and extends to the inside of the inner tank (3) and is fixedly connected with the top end of the rotating disc (9), and the connection between the output shaft of the motor (8) and the inner wall of the tank cover (5) is provided with a sealing bearing.
5. A spiral semi-automatic drying cylinder according to claim 1, wherein two said first connecting rods (10) and two said second connecting rods (13) are crossed each other and are fixedly installed at the outer surface of the rotary table (9) with equal distance, two said connectors (11) are respectively fixedly installed at the end where the two first connecting rods (10) are far away from each other, two said spiral rods (12) are respectively fixedly installed at the output shafts of the two connectors (11), and two said scrapers (14) are respectively fixedly installed at the end where the two second connecting rods (13) are far away from each other.
6. A spiral semi-automatic drying tank according to claim 1, wherein the air inlet of the fan (15) is fixedly communicated with the top of the tank cover (5), the air outlet of the fan (15) is fixedly communicated with one end of a first conveying pipe (16), the other end of the first conveying pipe (16) is fixedly communicated with the right side surface of the dehumidifying tank (17), and the second sealing cover (18) is screwed on the top of the dehumidifying tank (17).
7. A spiral semi-automatic drying cylinder according to claim 1, wherein one end of the second delivery pipe (20) is fixedly communicated with the left side surface of the dehumidifying cylinder (17), the other end of the second delivery pipe (20) is connected with one end of a third delivery pipe (21) through a flange, and the other end of the third delivery pipe (21) sequentially penetrates through the outer cylinder (2) and the inner cylinder (3) and extends to the inside of the inner cylinder (3).
8. A spiral semi-automatic drying cylinder according to claim 1, characterized in that four supporting columns (22) are fixedly mounted on the outer surface of the outer cylinder (2), and the four supporting columns (22) are distributed in a ring shape and at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894590.2A CN112781336A (en) | 2020-08-31 | 2020-08-31 | Spiral semi-automatic drying tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894590.2A CN112781336A (en) | 2020-08-31 | 2020-08-31 | Spiral semi-automatic drying tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112781336A true CN112781336A (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010894590.2A Pending CN112781336A (en) | 2020-08-31 | 2020-08-31 | Spiral semi-automatic drying tank |
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| Country | Link |
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| CN (1) | CN112781336A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532031A (en) * | 2021-08-10 | 2021-10-22 | 海南海灵化学制药有限公司 | Freeze-drying equipment that medicine injection preparation used |
-
2020
- 2020-08-31 CN CN202010894590.2A patent/CN112781336A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532031A (en) * | 2021-08-10 | 2021-10-22 | 海南海灵化学制药有限公司 | Freeze-drying equipment that medicine injection preparation used |
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