A vacuum drying apparatus

Abstract

The utility model relates to drying machine technical field provides a kind of vacuum drying equipment, including support seat and vacuum tank, vacuum tank is provided with feed inlet and discharge port, the inside of vacuum tank is provided with stirring mechanism;Stirring mechanism includes driving part, first pivot, stirring part and scraping part;The inside rotation of vacuum tank is connected with first pivot, first pivot is connected with stirring part and scraping part on it, driving part is connected with first pivot and drives first pivot to rotate;Stirring part includes two stirring blades oppositely arranged on first pivot, the middle portion of two stirring blades is provided with screen cloth;Scraping part can scrape the inner wall of vacuum tank;The utility model can more effectively break up the material of caking in vacuum tank, improve drying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drying technology, and in particular to a vacuum drying device. Background Technology

[0002] In the preparation of theanine, theanine powder needs to be dried using a vacuum dryer to remove moisture from the theanine powder; CN207585219U discloses a vacuum dryer, including a first fixed base and a second fixed base, and a vacuum tank disposed between the first fixed base and the second fixed base. A drive motor is disposed on the top of the vacuum tank, and a rotating roller is connected to the output end of the drive motor. The end of the rotating roller away from the drive motor penetrates through the outer wall of the top of the vacuum tank and extends into the interior of the vacuum tank. Two stirring blades for stirring the dried powder are connected to the side wall of the rotating roller, and the two stirring blades are disposed opposite to each other.

[0003] In existing technologies, although a stirring mechanism is set up to stir the material during drying and reduce the probability of it clumping, although the stirring can break up some of the clumped material, the material is prone to accumulate on the inner wall of the cavity and re-clump due to centrifugal force. When the material clumps inside the cavity, it is difficult to discharge, which will lead to the growth of bacteria inside the drying equipment in the long run, making it difficult to clean. Utility Model Content

[0004] This invention provides a vacuum drying device to solve the problems mentioned in the background art.

[0005] In view of this, the present invention aims to provide a vacuum drying device. In the present invention, the vacuum drying device includes a support base and a vacuum tank disposed on the support base. The vacuum tank is provided with a feed inlet and a discharge outlet, and a stirring mechanism is provided inside the vacuum tank.

[0006] The stirring mechanism includes a driving component, a first rotating shaft, a stirring component, and a scraping component; the first rotating shaft is rotatably connected inside the vacuum tank, the stirring component and the scraping component are connected to the first rotating shaft, and the driving component is connected to the first rotating shaft to drive the first rotating shaft to rotate;

[0007] The stirring component includes two stirring blades arranged opposite each other on the first rotating shaft, and a screen is provided in the middle of the two stirring blades; the scraping component is capable of scraping the inner wall of the vacuum tank.

[0008] This invention utilizes a stirring component. During material drying, the rotating stirring blades agitate the material, and the screen on the stirring blades segments the material during agitation, improving the dispersion efficiency during drying. Clumps of material come into contact with the screen during agitation, are segmented and pass through the screen, breaking up the clumps and improving the dispersing effect. Simultaneously, a scraper component scrapes off material adsorbed on the inner wall of the vacuum tank, preventing material from accumulating and clumping on the inner wall.

[0009] Furthermore, the two stirring blades are connected by a stirring rod.

[0010] By setting up a stirring rod, the stirring rod rotates along with the stirring blades to stir the materials.

[0011] Furthermore, a separation rod is provided at the end of the stirring blade, and a conical protrusion is provided on the separation rod.

[0012] By using a separating rod and a conical protrusion, the conical protrusion agitates the material, breaking up clumps and improving the dispersion efficiency of clumps.

[0013] Furthermore, the scraping component includes a scraper and a transmission component. The scraper is in contact with the inner wall of the vacuum tank, and the transmission component connects the first rotating shaft and the scraper. The scraper is able to rotate inside the vacuum tank in the opposite direction to the first rotating shaft when the first rotating shaft rotates.

[0014] By setting the scraper to rotate together with the first rotating shaft, there is no need to set a drive component to drive the scraper to rotate, thus reducing energy consumption.

[0015] Furthermore, the transmission component includes a drive gear, a transmission gear, and an internal gear ring; the drive gear is connected to the first rotating shaft, and the transmission gear is installed inside the vacuum tank via a second rotating shaft;

[0016] The outer wall of the internal gear ring is in contact with the inner wall of the vacuum tank and can rotate inside the vacuum tank. The transmission gear is located between the driving gear and the internal gear ring and meshes with the driving gear and the internal gear ring for transmission. The scraper is connected to the internal gear ring.

[0017] By configuring the transmission components, the scraper can rotate in the opposite direction when the first rotating shaft rotates. While the scraper scrapes the inner wall of the vacuum tank, the scraper and the stirring components work together to greatly improve the fluidity of the material inside the vacuum tank, improve the drying efficiency of the material, and improve the dispersion of agglomerated materials.

[0018] Furthermore, the second rotating shaft is configured as a hollow structure, one end of the second rotating shaft is connected to an air supply mechanism, and a cleaning port facing the internal gear ring is opened on the side wall of the second rotating shaft, and an opening and closing valve is provided on the cleaning port.

[0019] Connect the second bearing to the air supply mechanism. When it is necessary to clean the inner wall of the vacuum tank, open the opening and closing valve to blow air out of the cleaning port to clean the inner gear ring, so as to avoid the material adhering to the inner gear ring and being difficult to clean.

[0020] Furthermore, both the inlet and outlet are equipped with opening and closing mechanisms that can seal the inlet and outlet.

[0021] The sealing performance of the vacuum tank is improved by setting up independent opening and closing mechanisms to seal the inlet and outlet.

[0022] The vacuum drying equipment disclosed in this utility model can more effectively break up the clumps of material inside the vacuum tank, improve drying efficiency, and prevent the material from adsorbing and accumulating on the inner wall of the vacuum tank.

[0023] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0024] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0025] Figure 1 This is a structural schematic diagram of one embodiment of the present invention;

[0026] Figure 2 This is a perspective view of one embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the stirring component in one embodiment of the present invention;

[0028] Figure 4 This is a side view of the stirring component in one embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the transmission component in one embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100, Support base; 200, Vacuum tank; 210, Inlet; 220, Outlet; 300, Stirring mechanism; 310, Driving component; 311, Drive motor; 312, First pulley; 313, Second pulley; 320, First rotating shaft; 330, Stirring component; 331, Stirring blade; 332, Screen; 333, Stirring rod; 334, Separating rod; 335, Conical protrusion; 340, Scraper; 350, Drive gear; 360, Transmission gear; 370, Second rotating shaft; 380, Internal gear ring. Detailed Implementation

[0032] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices. "Fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connections, welding, or bonding.

[0035] In existing technologies, although a stirring mechanism is set up to stir the material during drying and reduce the probability of it clumping, although the stirring can break up some of the clumped material, the material is prone to accumulate on the inner wall of the cavity and re-clump due to centrifugal force. When the material clumps inside the cavity, it is difficult to discharge, which will lead to the growth of bacteria inside the drying equipment in the long run, making it difficult to clean.

[0036] This utility model provides a vacuum drying device, such as... Figure 1As shown, in this embodiment, the vacuum drying equipment includes a support base 100 and a vacuum tank 200 disposed on the support base 100. The vacuum tank 200 is provided with an inlet 210 and an outlet 220. The inlet 210 is located at the top of the vacuum tank 200, and the outlet 220 is located at the bottom of the vacuum tank 200. A vacuum connector is provided at the bottom of the vacuum tank 200, and the vacuum connector is connected to a vacuum pump, which can perform vacuuming treatment on the inside of the vacuum tank 200.

[0037] To improve the flowability of materials inside the vacuum tank 200 and increase drying efficiency; such as Figure 2 As shown, a stirring mechanism 300 is installed inside the vacuum tank 200. The stirring mechanism 300 is used to stir the material inside the vacuum tank 200. The stirring mechanism 300 is configured as a driving component 310, a first rotating shaft 320, a stirring component 330, and a scraping component. The first rotating shaft 320 is rotatably connected inside the vacuum tank 200. The two ends of the first rotating shaft 320 are mounted inside the vacuum tank 200 through bearings. The stirring component 330 and the scraping component are connected to the first rotating shaft 320, so that the stirring component 330 and the scraping component rotate together with the first rotating shaft 320. The driving component 310 is connected to the first rotating shaft 320 and drives the first rotating shaft 320 to rotate.

[0038] like Figure 1 As shown, in this embodiment, the driving component 310 is configured as a driving motor 311, a first pulley 312, a second pulley 313, and a transmission belt. The driving motor 311 is mounted on the support base 100. The driving motor 311 drives the first pulley 312 to rotate. The second pulley 313 is connected to the first rotating shaft 320. The first pulley 312 and the second pulley 313 are connected by the transmission belt. The driving motor 311 drives the first rotating shaft 320 to rotate.

[0039] like Figure 3 and Figure 4 As shown, the stirring component 330 includes two stirring blades 331 arranged opposite to each other on the first rotating shaft 320, and a screen 332 is provided in the middle of each of the two stirring blades 331; the scraper can scrape the inner wall of the vacuum tank 200; the two stirring blades 331 are connected by a stirring rod 333 to improve the stability of the installation of the two stirring blades 331; a separation rod 334 is provided at the end of the stirring blade 331, and a plurality of conical protrusions 335 are provided on the separation rod 334.

[0040] With the agitator 330 in place, the material is stirred by the rotation of the agitator blades 331 during the drying process. The screen 332 on the agitator blades 331 separates the material during stirring, improving the dispersion efficiency of the material during drying. Clumped material comes into contact with the screen 332 during stirring and is separated by the screen 332. Combined with the agitator rod 333, the separator rod 334, and the conical protrusion 335, the clumped material is completely broken up, improving the dispersing effect. At the same time, the scraper scrapes off the material adsorbed on the inner wall of the vacuum tank 200, preventing the material from accumulating and clumping on the inner wall.

[0041] In order to stably drive the scraper to perform scraping work inside the vacuum tank 200, such as Figure 2 As shown, the scraping components are configured as a scraper 340 and a transmission component. The scraper 340 is disposed on the inner wall of the vacuum tank 200 and fits against the inner wall of the vacuum tank 200. When the scraper 340 rotates, it can scrape the inner wall of the vacuum tank 200. The transmission component connects the first rotating shaft 320 and the scraper 340, so that the scraper 340 can rotate when the first rotating shaft 320 rotates. Specifically, when the first rotating shaft 320 rotates, the scraper 340 can rotate in the vacuum tank 200 in the opposite direction to the first rotating shaft 320, scraping off the material on the inner wall of the vacuum tank 200.

[0042] To achieve stable transmission of the transmission components, such as Figure 2 and Figure 5 As shown, the transmission components are configured as a drive gear 350, a transmission gear 360, and an internal gear ring 380. The drive gear 350 is connected to the first rotating shaft 320, and the drive gear 350 rotates along with the first rotating shaft 320. The transmission gear 360 is installed inside the vacuum tank 200 via a second rotating shaft 370. The internal gear ring 380 is arranged in a ring shape inside the vacuum tank 200. An annular groove is opened on the inner wall of the vacuum tank 200, and part of the internal gear ring 380 is embedded in the annular groove and rotates stably within the annular groove. The transmission gear 360 is located between the drive gear 350 and the internal gear ring 380, and both sides of the transmission gear 360 mesh with the drive gear 350 and the internal gear ring 380 respectively. A scraper 340 is connected to the internal gear ring 380, so that the scraper 340 can rotate along with the internal gear ring 380.

[0043] To prevent material from adhering to the inner gear ring 380 and being difficult to clean, the second rotating shaft 370 is designed as a hollow structure. One end of the second rotating shaft 370 is connected to a gas supply mechanism, allowing the gas supplied by the gas supply mechanism to be delivered into the second rotating shaft 370. A cleaning port is opened on the side wall of the second rotating shaft 370 facing the inner gear ring 380, allowing gas to exit from the inside of the second rotating shaft 370 to the cleaning port and into the interior of the vacuum tank 200. An on / off valve is installed on the cleaning port, which can open and close the cleaning port. The second bearing is connected to the gas supply mechanism. When it is necessary to clean the inner wall of the vacuum tank 200, the on / off valve is opened and air is blown out from the cleaning port to clean the inner gear ring 380, preventing material from adhering to the inner gear ring 380 and being difficult to clean.

[0044] To ensure the airtightness of the vacuum tank 200, an opening and closing mechanism is provided on both the inlet 210 and the outlet 220 of the vacuum tank 200. The opening and closing mechanism can seal the inlet 210 and the outlet 220. In this embodiment, the opening and closing mechanism is set as a sealed door that is hinged on the vacuum tank 200, and a sealing gasket is provided on the sealed door.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vacuum drying device, characterized in that, It includes a support base (100) and a vacuum tank (200) disposed on the support base (100). The vacuum tank (200) is provided with a feed inlet (210) and a discharge outlet (220). A stirring mechanism (300) is provided inside the vacuum tank (200). The stirring mechanism (300) includes a driving component (310), a first rotating shaft (320), a stirring component (330), and a scraping component; the first rotating shaft (320) is rotatably connected inside the vacuum tank (200), the stirring component (330) and the scraping component are connected to the first rotating shaft (320), and the driving component (310) is connected to the first rotating shaft (320) to drive the first rotating shaft (320) to rotate; The stirring component (330) includes two stirring blades (331) arranged opposite to each other on the first rotating shaft (320), and a screen (332) is provided in the middle of the two stirring blades (331); the scraping component is capable of scraping the inner wall of the vacuum tank (200).

2. The vacuum drying equipment according to claim 1, characterized in that, The two stirring blades (331) are connected by a stirring rod (333).

3. The vacuum drying equipment according to claim 1, characterized in that, The end of the stirring blade (331) is provided with a separation rod (334), and the separation rod (334) is provided with a conical protrusion (335).

4. The vacuum drying equipment according to any one of claims 1-3, characterized in that, The scraping component includes a scraper (340) and a transmission component. The scraper (340) is in contact with the inner wall of the vacuum tank (200). The transmission component connects the first rotating shaft (320) and the scraper (340). The scraper (340) is able to rotate in the vacuum tank (200) in the opposite direction to the first rotating shaft (320) when the first rotating shaft (320) rotates.

5. The vacuum drying equipment according to claim 4, characterized in that, The transmission components include a drive gear (350), a transmission gear (360), and an internal gear ring (380); the drive gear (350) is connected to the first rotating shaft (320), and the transmission gear (360) is installed inside the vacuum tank (200) via a second rotating shaft (370); The outer wall of the internal gear ring (380) fits against the inner wall of the vacuum tank (200) and can rotate inside the vacuum tank (200). The transmission gear (360) is located between the drive gear (350) and the internal gear ring (380) and meshes with the drive gear (350) and the internal gear ring (380) for transmission. The scraper (340) is connected to the internal gear ring (380).

6. The vacuum drying equipment according to claim 5, characterized in that, The second rotating shaft (370) is configured as a hollow structure. One end of the second rotating shaft (370) is connected to the air supply mechanism. The side wall of the second rotating shaft (370) is opened to face the internal gear ring (380), and an opening and closing valve is provided on the opening.

7. The vacuum drying equipment according to any one of claims 1-3, characterized in that, Both the feed inlet (210) and the discharge outlet (220) are provided with opening and closing mechanisms, which can seal the feed inlet (210) and the discharge outlet (220).

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