Pre-cooling defrosting device of medium-temperature type freeze dryer for COFs material production

Abstract

The utility model discloses a precooling defrosting device of a medium-temperature type freeze dryer for COFs material production, which comprises a dryer body, a driving component is arranged on the top surface of the dryer body, a rotating shaft is rotatably mounted in the dryer body, a mounting frame is fixedly mounted at the bottom end of the rotating shaft, and the mounting frame is fixedly mounted on the top surface of the dryer body. A scraping assembly is arranged at one end of the mounting frame, through the arrangement of the driving assembly, a second gear rotates, then a rotating shaft is driven to rotate, the mounting frame rotates, then a mounting plate is driven to rotate, a scraping plate can rotate back and forth in a reciprocating mode, and frost condensed on the inner wall of the drying machine body is scraped; hot air generated by the hot-air blower is input into the air injection header pipe through the connecting hose and then sprayed out through the nozzles, and the air injection header pipe can rotate back and forth along with the mounting frame, so that the nozzles rotate back and forth with the rotating shaft as the center to spray the hot air to the inner wall of the dryer body to melt a frost layer which is difficult to scrape by the scraper blade. And the defrosting effect on the interior of the drying machine body is better.

Description

Technical Field

[0001] The utility model relates to the technical field of freeze dryers, in particular to a precooling and defrosting device of a medium-temperature freeze dryer for producing COFs materials. Background Art

[0002] Covalent organic framework materials, also known as COFs materials, are crystalline porous polymer materials with an ordered two-dimensional (2D) or three-dimensional (3D) network structure formed by connecting organic structural units together through covalent bonds. They have broad application prospects in gas adsorption, chemical separation, catalysis, chemical sensing, optoelectronics and energy storage.

[0003] In the production of COFs materials, a medium-temperature freeze dryer is needed. A freeze dryer is a cold-drying device that first freezes a water-containing substance into a solid state and then sublimates the water therein from a solid state into a gaseous state to remove the water and preserve the substance. However, when the freeze dryer is used, the inside of the cooling chamber of the dryer usually frosts on the side walls due to the condensation of moisture in the air. Thick frost has a great influence on the freezing effect of the dryer. Therefore, a pre-cooling and defrosting device for a medium-temperature freeze dryer for the production of COFs materials is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a pre-cooling and defrosting device for a medium-temperature freeze dryer for producing COFs materials, which solves the problems in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pre-cooling and defrosting device for a medium-temperature freeze dryer for producing COFs materials comprises a dryer body, a driving assembly is arranged on the top surface of the dryer body, a rotating shaft is rotatably installed inside the dryer body, a mounting frame is fixedly installed on the bottom end of the rotating shaft, a scraping assembly is arranged on one end of the mounting frame, and an injection assembly is arranged on the other end of the mounting frame, a fixing frame is fixedly installed on the top surface of the dryer body, a hot air blower is fixedly installed on the top surface of the fixing frame, a connecting hose is fixedly installed on the bottom end of the hot air blower, a fixing rod is fixedly installed inside the dryer body, and a placement box is fixedly installed on the top surface of the fixing rod.

[0007] Preferably, the driving assembly comprises a motor fixedly mounted on the top surface of the dryer body, a first gear is fixedly mounted on the output end of the motor, a second gear is fixedly mounted on the surface of the rotating shaft, and the second gear is meshed with the first gear.

[0008] Preferably, the scraping assembly comprises a mounting plate fixedly mounted on one end of the mounting frame, a scraper is fixedly mounted on the surface of the mounting plate, and a cleaning brush is fixedly mounted on the bottom end of the mounting plate.

[0009] Preferably, the jet assembly includes a jet main pipe fixedly mounted on the other end of the mounting frame, a nozzle is fixedly mounted on the surface of the jet main pipe, and the jet main pipe is fixedly connected to the connecting hose.

[0010] Preferably, a through hole is provided on the surface of the placement box, and a drain pipe is fixedly installed on the bottom surface of the dryer body.

[0011] Preferably, a sealing door is hingedly mounted on the surface of the dryer body, and a handle is provided on the surface of the sealing door.

[0012] Preferably, a supporting leg is fixedly mounted on the bottom surface of the dryer body, and an anti-slip pad is fixedly mounted on the bottom end of the supporting leg.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the pre-cooling and defrosting device of the medium-temperature freeze dryer for the production of COFs materials, through the setting of the driving component, causes the second gear to rotate, thereby driving the rotating shaft to rotate, causing the mounting frame to rotate, thereby driving the mounting plate to rotate, so that the scraper can rotate back and forth to scrape off the frost condensed on the inner wall of the dryer body, and the hot air generated by the hot air blower is input into the jet main pipe through the connecting hose, and then sprayed out through the nozzle, and the jet main pipe will rotate back and forth with the mounting frame, so that the nozzle rotates back and forth with the rotating shaft as the center, and sprays hot air to the inner wall of the dryer body, so as to melt the frost layer that is difficult to scrape off by the scraper, so that the defrosting effect on the inside of the dryer body is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the positive measurement of the utility model;

[0015] Figure 2 It is a structural schematic diagram of a cross-sectional view of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the mounting frame of the utility model.

[0017] In the figure: 1. dryer body; 2. motor; 3. first gear; 4. rotating shaft; 5. second gear; 6. mounting frame; 7. mounting plate; 8. scraper; 9. cleaning brush; 10. jet main pipe; 11. nozzle; 12. fixing frame; 13. hot air blower; 14. connecting hose; 15. fixing rod; 16. placement box; 17. through hole; 18. drain pipe; 19. sealing door; 20. supporting leg. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example: Refer to Figure 1-3 The utility model provides a technical solution, a pre-cooling and defrosting device of a medium-temperature freeze dryer for COFs material production, comprising a dryer body 1, a rotating shaft 4 is rotatably installed inside the dryer body 1, a mounting frame 6 is fixedly installed at the bottom end of the rotating shaft 4, a fixing frame 12 is fixedly installed on the top surface of the dryer body 1, a hot air blower 13 is fixedly installed on the top surface of the fixing frame 12, a connecting hose 14 is fixedly installed at the bottom end of the hot air blower 13, a fixing rod 15 is fixedly installed inside the dryer body 1, a placement box 16 is fixedly installed on the top surface of the fixing rod 15, and a through hole 17 is opened on the surface of the placement box 16. A drain pipe 18 is fixedly installed on the bottom surface of the dryer body 1. The placement box 16 is arranged to facilitate the placement of materials to be processed. The drain pipe 18 is arranged to facilitate the discharge of scraped frost water. A sealing door 19 is hingedly installed on the surface of the dryer body 1, and a handle is arranged on the surface of the sealing door 19. The sealing door 19 and the handle are arranged to facilitate the placement and removal of materials, and the use is more convenient. A supporting leg 20 is fixedly installed on the bottom surface of the dryer body 1, and an anti-skid pad is fixedly installed on the bottom end of the supporting leg 20. The anti-skid pad is arranged to increase the friction between the supporting leg 20 and the ground, making the device more stable when in use.

[0020] Specifically, a driving assembly is provided on the top surface of the dryer body 1, and the driving assembly includes a motor 2 fixedly mounted on the top surface of the dryer body 1, a first gear 3 is fixedly mounted on the output end of the motor 2, a second gear 5 is fixedly mounted on the surface of the rotating shaft 4, and the second gear 5 is meshed with the first gear 3. Through the setting of the driving assembly, the output end of the motor 2 rotates to drive the first gear 3 to rotate, and the first gear 3 and the second gear 5 rotate, so that the second gear 5 rotates, thereby driving the rotating shaft 4 to rotate, so that the mounting frame 6 rotates, and then drives the mounting plate 7 to rotate.

[0021] Specifically, a scraping assembly is provided at one end of the mounting frame 6, and the scraping assembly includes a mounting plate 7 fixedly mounted on one end of the mounting frame 6, a scraper 8 is fixedly mounted on the surface of the mounting plate 7, and a cleaning brush 9 is fixedly mounted on the bottom end of the mounting plate 7. Through the setting of the scraping assembly, the driving assembly drives the mounting frame 6 to rotate, and then drives the mounting plate 7 to rotate, so that the scraper 8 can rotate back and forth to scrape the frost condensed on the inner wall of the dryer body 1.

[0022] Specifically, a jet assembly is provided at the other end of the mounting frame 6, and the jet assembly includes a jet main pipe 10 fixedly installed at the other end of the mounting frame 6, a nozzle 11 is fixedly installed on the surface of the jet main pipe 10, and the jet main pipe 10 is fixedly connected to the connecting hose 14. Through the setting of the jet assembly, the hot air blower 13 is started, and the hot air generated by the hot air blower 13 is input into the jet main pipe 10 through the connecting hose 14, and then sprayed out through the nozzle 11, and the jet main pipe 10 will rotate back and forth with the mounting frame 6, so that the nozzle 11 rotates back and forth with the rotating shaft 4 as the center, and sprays hot air to the inner wall of the dryer body 1, so as to melt the frost layer that is difficult to scrape off by the scraper 8, so that the defrosting effect on the inside of the dryer body 1 is better.

[0023] During use: During the production of COFs materials, a thick layer of frost will form on the inner wall of the dryer body 1. The motor 2 is started, and the output end of the motor 2 rotates to drive the first gear 3 to rotate. The first gear 3 and the second gear 5 rotate, so that the second gear 5 rotates, and then the rotating shaft 4 is driven to rotate, so that the mounting frame 6 rotates, and then the mounting plate 7 is driven to rotate, so that the scraper 8 can rotate back and forth to scrape off the frost condensed on the inner wall of the dryer body 1. At the same time, the hot air blower 13 is started, and the hot air generated by the hot air blower 13 is input into the jet main pipe 10 through the connecting hose 14, and then sprayed out through the nozzle 11. The jet main pipe 10 will rotate back and forth with the mounting frame 6, so that the nozzle 11 rotates back and forth with the rotating shaft 4 as the center, and sprays hot air to the inner wall of the dryer body 1, and melts the frost layer that is difficult to scrape off by the scraper 8, so that the defrosting effect on the inside of the dryer body 1 is better, and the frost water formed after defrosting is discharged from the inside of the dryer body 1 through the drain pipe 18.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precooling and defrosting device for a medium-temperature freeze dryer for COFs material production, comprising a dryer body (1), characterized in that: The top surface of the dryer body (1) is provided with a driving assembly, a rotating shaft (4) is rotatably mounted inside the dryer body (1), a mounting frame (6) is fixedly mounted at the bottom end of the rotating shaft (4), a scraping assembly is mounted at one end of the mounting frame (6), and an injection assembly is mounted at the other end of the mounting frame (6), a fixing frame (12) is fixedly mounted on the top surface of the dryer body (1), a hot air blower (13) is fixedly mounted on the top surface of the fixing frame (12), a connecting hose (14) is fixedly mounted at the bottom end of the hot air blower (13), a fixing rod (15) is fixedly mounted inside the dryer body (1), and a placement box (16) is fixedly mounted on the top surface of the fixing rod (15).

2. The precooling and defrosting device of a medium-temperature freeze dryer for COFs material production according to claim 1, characterized in that: The driving assembly comprises a motor (2) fixedly mounted on the top surface of the dryer body (1); a first gear (3) is fixedly mounted on the output end of the motor (2); a second gear (5) is fixedly mounted on the surface of the rotating shaft (4); and the second gear (5) is meshed with the first gear (3).

3. The precooling and defrosting device of a medium-temperature freeze dryer for COFs material production according to claim 1, characterized in that: The scraping assembly comprises a mounting plate (7) fixedly mounted on one end of a mounting frame (6), a scraper (8) fixedly mounted on the surface of the mounting plate (7), and a cleaning brush (9) fixedly mounted on the bottom end of the mounting plate (7).

4. The precooling and defrosting device of a medium-temperature freeze dryer for COFs material production according to claim 1, characterized in that: The jet assembly comprises a jet main pipe (10) fixedly mounted on the other end of the mounting frame (6), a nozzle (11) being fixedly mounted on the surface of the jet main pipe (10), and the jet main pipe (10) is fixedly connected to a connecting hose (14).

5. The precooling and defrosting device of a medium-temperature freeze dryer for COFs material production according to claim 1, characterized in that: A through hole (17) is provided on the surface of the placement box (16), and a liquid discharge pipe (18) is fixedly mounted on the bottom surface of the dryer body (1).

6. The precooling and defrosting device of a medium-temperature freeze dryer for COFs material production according to claim 1, characterized in that: A sealing door (19) is hingedly mounted on the surface of the dryer body (1), and a handle is provided on the surface of the sealing door (19).

7. The precooling and defrosting device of a medium-temperature freeze dryer for COFs material production according to claim 1, characterized in that: A support leg (20) is fixedly mounted on the bottom surface of the dryer body (1), and an anti-slip pad is fixedly mounted on the bottom end of the support leg (20).

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