CN110595193A - Hinge type continuous vacuum low-temperature freeze dryer - Google Patents
Hinge type continuous vacuum low-temperature freeze dryer Download PDFInfo
- Publication number
- CN110595193A CN110595193A CN201910962276.0A CN201910962276A CN110595193A CN 110595193 A CN110595193 A CN 110595193A CN 201910962276 A CN201910962276 A CN 201910962276A CN 110595193 A CN110595193 A CN 110595193A
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- dragon
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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
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
- F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/06—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum the process involving freezing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a dragon-type continuous vacuum low-temperature freeze dryer, which comprises an outer cylinder and a dragon-type cylinder, wherein the dragon-type cylinder is arranged in the outer cylinder, a vacuum chamber is formed between the outer wall of the dragon-type cylinder and the inner wall of the outer cylinder, a dragon-type shaft is arranged in the dragon-type cylinder, and bearings are arranged at two ends of the dragon-type shaft.
Description
Technical Field
The invention relates to the field of food processing equipment, in particular to a dragon-type continuous vacuum low-temperature freeze dryer.
Background
At present, domestic pharmaceutical enterprises and food enterprises have poor drying treatment effects on powdery crystals, high-temperature drying is generally adopted, the process can cause the deterioration of finished product components and the change of drug effects or nutritional ingredients, meanwhile, the drying is a high-energy consumption process, continuous drying treatment cannot be carried out, and the production and processing efficiency is low.
Disclosure of Invention
The invention aims to provide a dragon-type continuous vacuum low-temperature freeze dryer to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the hinge dragon type continuous vacuum low-temperature freeze dryer comprises an outer cylinder body, a hinge dragon cylinder body, a feeding hole and a discharging hole, wherein the hinge dragon cylinder body is arranged in the outer cylinder body, a vacuum chamber is formed between the outer wall of the hinge dragon cylinder body and the inner wall of the outer cylinder body, an air path branch pipe is arranged at the top of the outer cylinder body, the bottom end of the air path branch pipe is communicated with the vacuum chamber, the top end of the air path branch pipe is connected with the outlet end of a main air path joint, a main air pipe is arranged at the inlet end of the main air path joint, a vacuumizing valve and a vacuum breaking valve are respectively arranged at the branch ends of the top of the main air pipe, a vacuum filtering port is processed at the top of the hinge dragon cylinder body, a vacuum filter screen is arranged at the outer side of the vacuum filtering port, a hinge dragon shaft is arranged in the hinge dragon cylinder body, bearings are arranged at two ends of the hinge dragon shaft and are matched with the outer cylinder body, the, in addition, a heat radiation pipe is surrounded on the outer side of the auger barrel and comprises a secondary refrigerant pipe and a heating pipe, the secondary refrigerant pipe and the heating pipe are surrounded on the outer end face of the auger barrel at intervals, the ports of the secondary refrigerant pipe and the heating pipe are both connected with the end face on the left side of the outer barrel, a pre-pumping chamber is arranged above the feeding hole, a feeding hopper is arranged above the pre-pumping chamber, feeding plate valves are arranged at the upper end and the top end of the pre-pumping chamber, the bottom face of the feeding plate valve below the pre-pumping chamber is connected with the feeding hole, the upper end face of the feeding plate valve above the pre-pumping chamber is connected with the bottom end of the feeding hopper, a feeding air pipe is arranged on the side face of the pre-pumping chamber, the branch ends at the top of the feeding air pipe are respectively connected with a vacuum-pumping valve and a vacuum breaking valve, a pre-storage chamber is arranged below the discharging hole, discharging hoppers are arranged below the pre-storage chamber, the lower end face of the discharging plate valve below is connected with the top end of the discharging hopper, a discharging air pipe is arranged on the side face of the pre-storage chamber, and the branch end at the top of the discharging air pipe is connected with the vacuumizing valve and the vacuum breaking valve respectively.
As a further scheme of the invention: the magnetic coupler is arranged at the outer extending shaft end on the right side of the hinged dragon shaft, the frequency modulation motor is arranged on the right side of the outer cylinder, and the shaft end of the frequency modulation motor is connected with the magnetic coupler at the outer extending shaft end of the hinged dragon shaft.
As a further scheme of the invention: the vacuum-pumping valve and the vacuum breaking valve are matched in pairs, a plurality of groups of vacuum-pumping valves and vacuum breaking valves are arranged in pairs, the vacuum-pumping valves and the vacuum breaking valves are respectively matched with the feeding air pipe and the discharging air pipe of the main air pipe correspondingly, and hand valves are arranged at the top ends of the vacuum-pumping valves and the vacuum breaking valves.
As a further scheme of the invention: the pre-pumping chamber and the pre-storage chamber are matched, are of a cylindrical structure, have different inner diameter specifications, are respectively communicated with the feeding air pipe and the discharging air pipe, are provided with filter screen plates of cylindrical structures on the inner walls of the material pre-storage chamber and the pre-storage chamber, and are made of cotton fiber materials.
As a further scheme of the invention: the gas path branch pipes are distributed outside the outer cylinder body.
As a further scheme of the invention: the secondary refrigerant pipes and the heating pipes are matched in pairs, and the secondary refrigerant pipes and the heating pipes are wound on the outer side of the auger barrel at intervals, are a plurality of groups, and are transversely distributed on the outer side of the auger barrel in parallel.
As a further scheme of the invention: the vacuum filtering openings are a plurality of and are transversely distributed at the top of the dragon-hinged cylinder body.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the feed inlet and the discharge outlet are respectively connected with the pre-pumping chamber and the pre-storage chamber, the pre-pumping chamber is matched with the feed plate valve and the feed air pipe, and the pre-storage chamber is matched with the discharge plate valve and the discharge air pipe, so that the pre-pumping chamber and the pre-storage chamber can be effectively isolated and differentiated, and the pre-pumping chamber and the pre-storage chamber are respectively vacuumized and broken by the feed air pipe and the discharge air pipe, so that the continuous operation of feeding and discharging materials is realized, the production and processing efficiency is effectively improved, and meanwhile, the stability of vacuum in the equipment is ensured, and more energy is saved; the outer cylinder body is adopted to support the auger cylinder body and form a vacuum chamber, so that the thermal insulation is effectively carried out, the structure is more stable, the main air pipe is branched by matching the air path branch pipe with the four-way pipe joint, the vacuum pumping efficiency of the vacuum chamber and the auger cylinder body is improved, and the communication between the inner cavity of the auger cylinder body and the vacuum chamber is ensured by the vacuum filtering port; the multi-group parallel secondary refrigerant pipes and the heating pipes are matched to surround the hinged barrel, and are matched to realize segmented temperature control of the hinged barrel, so that water vapor in the material can be effectively pumped out, the quality of the product is improved, the hinged shaft is matched with the variable frequency motor through the magnetic coupling, the hinged shaft can be moved at a fixed distance at regular time, the material is conveyed in a uniformly dispersed mode, and the multi-group parallel secondary refrigerant pipe and the heating pipes are more stable and wide in application prospect.
Drawings
Fig. 1 is a schematic structural diagram of a dragon-type continuous vacuum low-temperature freeze dryer.
Fig. 2 is a schematic structural diagram of the cooperation between a cold-carrying tube and a dragon cylinder in a dragon type continuous vacuum low-temperature freeze dryer.
Fig. 3 is a schematic structural diagram of a pre-pumping chamber in a dragon-type continuous vacuum low-temperature freeze dryer.
Fig. 4 is a partially enlarged schematic structure view of a dragon type continuous vacuum low-temperature freeze dryer.
In the figure: the device comprises an outer cylinder 1, a dragon-hinged cylinder 2, a vacuum chamber 3, a heat radiation pipe 4, a secondary refrigerant pipe 41, a heating pipe 42, a dragon-hinged shaft 5, a bearing 6, a vacuum filter opening 7, a feed inlet 8, a feed plate valve 9, a pre-pumping chamber 10, a feed hopper 11, a discharge outlet 12, a pre-storage chamber 13, a discharge plate valve 14, a discharge hopper 15, a main air path joint 16, a main air pipe 17, an air path branch pipe 18, a feed air pipe 19, a discharge air pipe 20, a vacuum pumping valve 21, a vacuum breaking valve 22, a hand valve 23, a magnetic coupling 24, a variable speed motor 25 and a vacuum filter screen 26.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, in the embodiment of the present invention, the dragon-type continuous vacuum low-temperature freeze dryer includes an outer cylinder 1, a dragon-type cylinder 2, a feeding port 8 and a discharging port 12, the dragon-type cylinder 2 is disposed in the outer cylinder 1, a vacuum chamber 3 is formed between an outer wall of the dragon-type cylinder 2 and an inner wall of the outer cylinder 1, a gas path branch pipe 18 is disposed at a top of the outer cylinder 1, a bottom end of the gas path branch pipe 18 is communicated with the vacuum chamber 3, a top end of the gas path branch pipe 18 is connected with an outlet end of a main gas path joint 16, a main gas pipe 17 is disposed at an inlet end of the main gas path joint 16, a vacuum pumping valve 21 and a vacuum breaking valve 22 are respectively disposed at branch ends of a top of the main gas pipe 17, a vacuum filter 7 is processed at the top of the dragon-type cylinder 2, and a vacuum filter screen 26 is disposed at an outer side of the vacuum filter 7, so that the dragon-type, the main air pipe 17 is branched, the vacuum pumping efficiency of the vacuum chamber 3 and the hinged barrel 2 is improved, the vacuum filtering port 7 ensures that the inner cavity of the hinged barrel 2 is communicated with the vacuum chamber 3, the hinged shaft 5 is arranged in the hinged barrel 2, the two ends of the hinged shaft 5 are provided with the bearings 6, the bearings 6 are matched with the outer barrel 1, the top of the left end of the hinged barrel 2 is provided with the feed port 8, the bottom of the right end is provided with the discharge port 12, the top end of the feed port 8 and the bottom end of the discharge port 12 are both connected with the outer barrel 1, the outer side of the hinged barrel 2 is surrounded with the heat radiation pipe 4, the heat radiation pipe 4 comprises a secondary refrigerant pipe 41 and a heating pipe 42, the secondary refrigerant pipe 41 and the heating pipe 42 are alternately surrounded on the outer end face of the hinged barrel 2, the ports of the secondary refrigerant pipe 41 and the heating pipe 42 are both connected with the end face of the left side of the outer barrel 1, thus the, the sealing performance of the vacuum chamber 3 is improved, the auger barrel body 2 is surrounded by a plurality of groups of parallel secondary refrigerant pipes 41 and heating pipes 42, the materials in the auger barrel body 2 are cooled or heated in a segmented manner through the secondary refrigerant pipes 41 or the heating pipes 42, the production and processing efficiency can be effectively improved through segmented temperature control, a pre-pumping chamber 10 is arranged above the feeding port 8, a feeding hopper 11 is arranged above the pre-pumping chamber 10, feeding plate valves 9 are arranged at the upper end and the top end of the pre-pumping chamber 10, the bottom surface of the feeding plate valve 9 at the lower part is connected with the feeding port 8, the upper end surface of the feeding plate valve 9 at the upper part is connected with the bottom end of the feeding hopper 11, a feeding air pipe 19 is arranged on the side surface of the pre-pumping chamber 10, the branch ends at the top of the feeding air pipe 19 are respectively connected with a vacuum pumping valve 21 and a vacuum breaking valve 22, so that the ports at the two ends of the pre-pumping chamber 10 are sealed, the pre-pumping chamber 10 is vacuumized or broken by a feeding air pipe 19 to reach the vacuum degree of the vacuum chamber 3 or the external air pressure, so that the continuous feeding operation of materials can be realized, the production and processing efficiency is effectively improved, the pre-storage chamber 13 is arranged below the discharge port 12, the discharge hopper 15 is arranged below the pre-storage chamber 13, the discharge plate valves 14 are respectively arranged at the top end and the bottom end of the pre-storage chamber 13, the upper end surface of the upper discharge plate valve 14 is connected with the discharge port 12, the lower end surface of the lower discharge plate valve 14 is connected with the top end of the discharge hopper 15, the discharge air pipe 20 is arranged on the side surface of the pre-storage chamber 13, the branch ends at the top of the discharge air pipe 20 are respectively connected with a vacuumizing valve 21 and a breaking valve 22, so that the discharge is stored through the pre-storage chamber 13, the ports at two ends of the pre-storage chamber 13 are sealed or opened by the discharge plate valves 14, and the pre-storage chamber 13 is vacuumi, the continuous operation of the material discharging is convenient, the stability of the vacuum in the vacuum chamber 3 and the auger barrel 2 is ensured, the stability of the equipment is improved, and the energy is saved.
The magnetic coupling 24 is arranged at the outer extending shaft end on the right side of the hinged dragon shaft 5, the variable speed motor 25 is arranged on the right side of the outer barrel 1, and the shaft end of the variable speed motor 25 is connected with the magnetic coupling 24 at the outer extending shaft end of the hinged dragon shaft 5.
The vacuum-pumping valves 21 and the vacuum breaking valves 22 are matched in pairs, and are in a plurality of groups, and are respectively matched with the feeding air pipe 19 and the discharging air pipe 20 of the main air pipe 17, and hand valves 23 are arranged at the top ends of the vacuum-pumping valves 21 and the vacuum breaking valves 22.
The pre-pumping chamber 10 and the pre-storage chamber 13 are matched, are of a cylindrical structure, have different inner diameter specifications, are respectively communicated with the feeding air pipe 19 and the discharging air pipe 20, are provided with filter screen plates of cylindrical structures on the inner walls of the pre-storage chamber 10 and the pre-storage chamber 13, and are made of cotton fiber materials and the vacuum filter screen 26.
The air path branch pipes 18 are distributed outside the outer cylinder 1.
The coolant carrying pipes 41 and the heating pipes 42 are matched in pairs, and the coolant carrying pipes 41 and the heating pipes 42 are wound around the outer side of the auger barrel body 2 at intervals, and are distributed on the outer side of the auger barrel body 2 in a transverse parallel mode.
The vacuum filter openings 7 are distributed on the top of the dragon-shaped cylinder body 1 in the transverse direction.
The working principle of the invention is as follows: when the device is used, the vacuumizing valve 21 is connected with a high-vacuum oil-free vacuum pump, the front end of the vacuumizing valve is additionally provided with a cold trap to adsorb water vapor separated from a finished product, ports at two ends of the pre-pumping chamber 10 are closed through the feeding plate valve 9, materials are pre-stored, the pre-pumping chamber 10 is vacuumized through the feeding air pipe 19 to reach the vacuum degree in the auger cylinder 2, the feeding valve plate 9 below the vacuumizing valve is opened to guide the materials into the feeding port 8 and enter the auger cylinder 2, the feeding valve plate 9 below the vacuumizing valve is closed, the pre-pumping chamber 10 is pressurized through the vacuum breaking valve 22 connected with the pressurizing pump, the atmospheric pressure is recovered, and the feeding valve plate 9 above the vacuumizing valve is opened to feed again, so that continuous feeding operation of the materials is realized, and the production and processing efficiency is effectively improved.
The auger shaft 5 is driven to rotate by the variable frequency motor 25, the constant volume of the auger shaft 5 is set according to the 1L-3L capacity of each section of auger, and the materials are conveyed at regular intervals, the materials are sent out from the discharge port 12 and enter the pre-storage chamber 13, the discharge plate valve 14 above the pre-storage chamber 13 is closed, the discharging air pipe 20 is matched with the vacuum breaking valve 22 to recover the air pressure in the pre-storage chamber 13, the discharging plate valve 14 below is opened to perform stable discharging, the discharging plate valve 14 below is closed, the discharging air pipe 20 is matched with the vacuum pumping valve 21 to vacuumize the pre-storage chamber 13 and the degree of vacuum in the dragon-shaped cylinder body 2 is consistent, the discharging plate valve 14 above can be opened to carry out the discharging operation again, thereby realizing the continuous operation of material discharging, having higher efficiency, meanwhile, the vacuum stability in the vacuum chamber 3 and the auger barrel 2 is ensured, the stability of the equipment is improved, and more energy is saved.
The secondary refrigerant pipe 41 and the heating pipe 42 are respectively connected with a cold source and a heat source, the hinge shaft 5 is matched with the hinge barrel 2, the secondary refrigerant pipe 41 or the heating pipe 42 carries out segmented refrigeration or heating on materials in the hinge barrel 2, the temperature of the feeding end is controllable to be below-60 ℃, the temperature is gradually increased to the discharging end of the equipment, the temperature is increased to the normal temperature (25 ℃), and the production and processing efficiency can be effectively improved through segmented temperature control.
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 various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The hinge dragon type continuous vacuum low-temperature freeze dryer comprises an outer cylinder body, a hinge dragon cylinder body, a feeding hole and a discharging hole, and is characterized in that the hinge dragon cylinder body is arranged in the outer cylinder body, a vacuum chamber is formed between the outer wall of the hinge dragon cylinder body and the inner wall of the outer cylinder body, an air path branch pipe is arranged at the top of the outer cylinder body, the bottom end of the air path branch pipe is communicated with the vacuum chamber, the top end of the air path branch pipe is connected with the outlet end of a main air path joint, a main air pipe is arranged at the inlet end of the main air path joint, a vacuum pumping valve and a vacuum breaking valve are respectively arranged at the branch ends of the top of the main air pipe, a vacuum filtering port is processed at the top of the hinge dragon cylinder body, a vacuum filter screen is arranged outside the vacuum filtering port, a hinge dragon shaft is arranged in the hinge dragon cylinder body, bearings are arranged at two ends of the hinge dragon, the top end of the feeding hole and the bottom end of the discharging hole are both connected with the outer cylinder, the outer side of the hinge cylinder is surrounded with a heat radiation pipe, the heat radiation pipe comprises a secondary refrigerant pipe and a heating pipe, the secondary refrigerant pipe and the heating pipe are surrounded on the outer end face of the hinge cylinder at intervals, the ports of the secondary refrigerant pipe and the heating pipe are both connected with the end face on the left side of the outer cylinder, a pre-pumping chamber is arranged above the feeding hole, a feeding hopper is arranged above the pre-pumping chamber, the upper end and the top end of the pre-pumping chamber are both provided with a feeding plate valve, the bottom surface of the feeding plate valve below the pre-pumping chamber is connected with the feeding hole, the upper end face of the feeding plate valve above the pre-pumping chamber is connected with the bottom end of the feeding hopper, meanwhile, the side face of the pre-pumping chamber is provided with a feeding air pipe, the branch ends at the top of the feeding air pipe are respectively connected with a vacuum pumping valve and a vacuum, the upper end surface of the upper discharging plate valve is connected with the discharging port, the lower end surface of the lower discharging plate valve is connected with the top end of the discharging hopper, the discharging air pipe is arranged on the side surface of the pre-storage chamber, and the branch end at the top of the discharging air pipe is respectively connected with the vacuumizing valve and the vacuum breaking valve.
2. The dragon-type continuous vacuum low-temperature freeze dryer as claimed in claim 1, wherein a magnetic coupling is arranged at the outer extending shaft end on the right side of the dragon-type shaft, a frequency modulation motor is arranged on the right side of the outer cylinder body, and the shaft end of the frequency modulation motor is connected with the outer extending shaft end of the dragon-type shaft through the magnetic coupling.
3. The dragon-type continuous vacuum low-temperature freeze dryer according to claim 1, wherein the vacuum-pumping valve and the vacuum breaking valve are matched in pairs, and are matched with the feeding air pipe and the discharging air pipe of the main air pipe respectively, and hand valves are arranged at the top ends of the vacuum-pumping valve and the vacuum breaking valve.
4. The dragon-type continuous vacuum low-temperature freeze dryer according to claim 1, wherein the pre-pumping chamber and the pre-storage chamber are matched, are of a cylindrical structure, have different inner diameter specifications, are respectively communicated with the feeding air pipe and the discharging air pipe, are provided with filter screen plates of the cylindrical structure on the inner walls of the feeding pre-storage chamber and the pre-storage chamber, and are made of cotton fiber materials.
5. The dragon-type continuous vacuum low-temperature freeze dryer as claimed in claim 1, wherein the air path branch pipes are distributed outside the outer cylinder.
6. The dragon-type continuous vacuum low-temperature freeze dryer as claimed in claim 1, wherein the coolant tubes and the heating tubes are matched in pairs, and the coolant tubes and the heating tubes are spaced around the outside of the dragon-type cylinder body, and are distributed in groups transversely and side by side on the outside of the dragon-type cylinder body.
7. The dragon-type continuous vacuum low-temperature freeze dryer as claimed in claim 1, wherein the vacuum filtering ports are several and are distributed transversely on the top of the dragon-type cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910962276.0A CN110595193A (en) | 2019-09-30 | 2019-09-30 | Hinge type continuous vacuum low-temperature freeze dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910962276.0A CN110595193A (en) | 2019-09-30 | 2019-09-30 | Hinge type continuous vacuum low-temperature freeze dryer |
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| Publication Number | Publication Date |
|---|---|
| CN110595193A true CN110595193A (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910962276.0A Pending CN110595193A (en) | 2019-09-30 | 2019-09-30 | Hinge type continuous vacuum low-temperature freeze dryer |
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| Country | Link |
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| CN (1) | CN110595193A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504042A (en) * | 2020-04-26 | 2020-08-07 | 郭建设 | Automatic dehumidification and drying system and dehumidification and drying process for granular plastic |
| WO2021148108A1 (en) * | 2020-01-21 | 2021-07-29 | Technische Universität Dortmund | Rotating-screw drying reactor |
| WO2021235459A1 (en) * | 2020-05-18 | 2021-11-25 | 株式会社エムアイアイ | Vacuum freeze-drying device and vacuum freeze-drying method |
| CN114061267A (en) * | 2021-11-11 | 2022-02-18 | 山东金格瑞机械有限公司 | Vacuum material dryer |
-
2019
- 2019-09-30 CN CN201910962276.0A patent/CN110595193A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021148108A1 (en) * | 2020-01-21 | 2021-07-29 | Technische Universität Dortmund | Rotating-screw drying reactor |
| CN111504042A (en) * | 2020-04-26 | 2020-08-07 | 郭建设 | Automatic dehumidification and drying system and dehumidification and drying process for granular plastic |
| WO2021235459A1 (en) * | 2020-05-18 | 2021-11-25 | 株式会社エムアイアイ | Vacuum freeze-drying device and vacuum freeze-drying method |
| JPWO2021235459A1 (en) * | 2020-05-18 | 2021-11-25 | ||
| JP7218484B2 (en) | 2020-05-18 | 2023-02-07 | 株式会社エムアイアイ | Vacuum freeze-drying apparatus and vacuum freeze-drying method |
| US11644236B2 (en) | 2020-05-18 | 2023-05-09 | Mii, Ltd. | Vacuum freeze-drying apparatus and vacuum freeze-drying method |
| CN114061267A (en) * | 2021-11-11 | 2022-02-18 | 山东金格瑞机械有限公司 | Vacuum material dryer |
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Application publication date: 20191220 |