Vacuum drying equipment for vegetable food

Abstract

The utility model relates to vacuum drying equipment for vegetable food, which comprises a drying barrel body, a stirring mechanism is arranged in the drying barrel body, the interior of the stirring mechanism is hollow, a first air inlet is arranged on the surface of the stirring mechanism, a first air outlet is arranged at the other end of the stirring mechanism, and a second air outlet is arranged at the other end of the stirring mechanism. The stirring mechanism is in transmission connection with an external transmission mechanism, and a feeding port, a discharging port and a heating port are formed in the surface of the drying barrel body. In the rotating process of the stirring mechanism, steam entering the heating opening can enter the first air inlet in the stirring mechanism and is discharged through the first air outlet, the whole stirring mechanism can quickly enter a high-temperature state, vegetable food can be uniformly heated in the stirring process, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing, in particular to vacuum drying equipment for vegetable foods. Background Art

[0002] At present, rake vacuum dryer is widely used in chemical, food, pharmaceutical and other industrial fields. It has simple structure, convenient operation and stable performance. It is particularly suitable for drying paste materials that are easy to decompose, combust and oxidize at high temperature. The working principle of rake vacuum dryer is that when the material is added into the cylinder of rake vacuum dryer, it will be indirectly heated by the steam, hot water or heat-conducting oil flowing in the cylinder interlayer. Under the stirring of the continuously rotating rake teeth, the surface of the material in contact with the cylinder wall is constantly updated, so that the material is evenly heated. After the material is heated, the moisture in the material will vaporize, and the vaporized moisture will be promptly pumped away by the vacuum pump, so that the material is dried.

[0003] The authorization announcement number is CN217817724U, which discloses a vacuum rake dryer. Combined with the specification and its drawings, in its scheme, external hot air is introduced into the interlayer, and the material is rolled under the rotation of the stirring mechanism to achieve material drying. However, the temperature of the stirring blades in the stirring mechanism is often not preheated fast enough, which reduces the efficiency of the stirring mechanism in stirring the material to dry. Summary of the invention

[0004] The utility model mainly aims at the problems existing in the use of the above-mentioned dryer, and invents a vacuum drying device for vegetable food. During the rotation of the driving shaft, the steam entering the heating port will enter the first air inlet on the driving shaft and be discharged through the first air outlet. The entire driving shaft will quickly enter a high-temperature state, and the stirring rod and stirring rake teeth will also quickly enter a high-temperature state, which is beneficial to the uniform heating of vegetable food during the stirring process, so that the vegetable food is evenly heated, thereby improving the efficiency during production.

[0005] The invention objective of the utility model is achieved through the following technical scheme: a vacuum drying device for vegetable food, comprising a drying barrel body, a stirring mechanism is arranged inside the drying barrel body, the interior of the stirring mechanism is hollow, a first air inlet is arranged on the surface of the stirring mechanism, a first air outlet is arranged at the other end of the stirring mechanism, the stirring mechanism is transmission-connected to an external transmission mechanism, and a material inlet, a material outlet and a heating port are arranged on the surface of the drying barrel body.

[0006] Preferably, a vacuum interface is further provided on the surface of the drying barrel, and a vacuum extraction mechanism is connected to the end of the vacuum interface.

[0007] Preferably, the stirring mechanism includes a driving shaft, a stirring rod and stirring rake teeth, the interior of the driving shaft is hollow, the first air inlet is arranged on the surface of the driving shaft, the surface of the driving shaft is also connected to the stirring rod, the end of the stirring rod is provided with stirring rake teeth, one end of the driving shaft is transmission-connected to the transmission mechanism, and the other end of the driving shaft is connected to an external pipe.

[0008] Preferably, the transmission mechanism includes a support frame, a drive motor, a transmission belt and a transmission disk, one end of the drive shaft is connected to the transmission disk, a drive motor is provided on the surface of the support frame, and the drive motor and the transmission disk are connected by a transmission belt.

[0009] Preferably, the vacuum pumping mechanism comprises a vacuum pipeline, a condenser, a buffer tank and a vacuum pump, one end of the vacuum pipeline is connected to the vacuum interface, and the other end of the vacuum pipeline passes through the condenser, the buffer tank and the vacuum pump in sequence.

[0010] Preferably, steam, hot water or heat-conducting oil may be poured into the interior of the heating port.

[0011] Preferably, a staircase is further provided on the outside of the drying barrel, one end of the staircase is connected to the feed inlet, and the other end is connected to the ground.

[0012] Compared with the prior art, the utility model has the following beneficial effects: 1. During the rotation of the drive shaft, the steam entering the heating port will enter the first air inlet on the drive shaft and be discharged through the first air outlet. The entire drive shaft will quickly enter a high-temperature state, and the stirring rod and stirring rake teeth will also quickly enter a high-temperature state, which is beneficial for the vegetable food to be evenly heated during the stirring process, so that the vegetable food is evenly heated and the production efficiency is improved; 2. The structural adjustment of the drive shaft can realize the improvement of the heating production efficiency without the need to add other equipment, thereby reducing the cost for the enterprise during production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the interior of the drying barrel in the utility model;

[0015] Figure 3 It is a partial enlarged view of the utility model;

[0016] Figure 4 It is a partial stereogram of the utility model.

[0017] Markings in the figure: 1. Drying barrel; 11. Feeding port; 12. Discharging port; 13. Heating port; 14. Vacuum interface; 2. Stirring mechanism; 21. Driving shaft; 22. Stirring rod; 23. Stirring rake teeth; 3. Vacuum extraction mechanism; 31. Vacuum pipeline; 32. Condenser; 33. Buffer tank; 34. Vacuum pump; 4. Transmission mechanism; 41. Support frame; 42. Driving motor; 43. Transmission belt; 44. Transmission disk; 5. Stairs. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0019] like Figures 1 to 4 As shown, a vacuum drying device for vegetable food comprises a drying barrel body 1. The drying barrel body 1 should be made of a material with heat preservation effect. Aluminum drying barrel body 1 is a good choice. The surface of the drying barrel body 1 is provided with a feeding port 11, a discharging port 12 and a heating port 13. The surfaces of the feeding port 11 and the discharging port 12 should be connected with sealed doors that can be opened and closed. In order to facilitate the placement of vegetable materials, a staircase 5 is also provided on the outside of the drying barrel body 1. One end of the staircase 5 is connected to the feeding port 11, and the other end is connected to the ground. Steam, hot water or heat-conducting oil can be poured into the interior of the heating port 13. Steam is used for heating when drying vegetable products. The surface of the drying barrel body 1 is also provided with a vacuum interface 14. The end of the vacuum interface 14 The interior of the drying barrel 1 is connected to a vacuum pumping mechanism 3, which includes a vacuum pipeline 31, a condenser 32, a buffer tank 33 and a vacuum pump 34. One end of the vacuum pipeline 31 is connected to the vacuum interface 14, and the other end of the vacuum pipeline 31 passes through the condenser 32, the buffer tank 33 and the vacuum pump 34 in sequence. The condenser 32 mainly plays a role in converting the high-temperature gas inside the drying barrel 1 from a gaseous state to a liquid state. During the vacuum extraction process, the gas and oil molecules are often mixed together, which will reduce the efficiency of the vacuum pump and may cause oil pollution. The condenser can convert the gas from a gaseous state to a liquid state by lowering the temperature of the gas, and finally flow into the buffer tank 33, which can protect the vacuum pump 34, reduce their workload and extend their service life.

[0020] In this embodiment, a stirring mechanism 2 is provided inside the drying barrel body 1, the interior of the stirring mechanism 2 is hollow, a first air inlet 24 is provided on the surface of the stirring mechanism 2, and a first air outlet 25 is provided at the other end of the stirring mechanism 2. The stirring mechanism 2 is transmission-connected to an external transmission mechanism 4. Specifically, the stirring mechanism 2 includes a driving shaft 21, a stirring rod 22 and stirring rake teeth 23. The interior of the driving shaft 21 is hollow, the first air inlet 24 is provided on the surface of the driving shaft 21, the surface of the driving shaft 21 is also connected to the stirring rod 22, and the end of the stirring rod 22 is provided with stirring rake teeth 23. One end of the driving shaft 21 is transmission-connected to the transmission mechanism 4, and the other end of the driving shaft 21 is connected to an external pipeline. The transmission mechanism 4 includes a support frame 41, a driving motor The support frame 41 is provided with a driving motor 42, a transmission belt 43 and a transmission disk 44, one end of the driving shaft 21 is connected to the transmission disk 44, and the surface of the supporting frame 41 is provided with a driving motor 42, and the driving motor 42 and the transmission disk 44 are connected by a transmission belt 43. After such arrangement, the rotating shaft of the driving motor 42 can drive the transmission disk 44 to rotate through the transmission belt 43, and the transmission disk 44 can rotate the driving shaft 21 when it rotates. When the driving shaft 21 rotates, the stirring rod 22 and the stirring rake teeth 23 will also rotate. During the rotation, the steam entering the heating port 13 will enter the first air inlet 24 on the driving shaft 21 and be discharged through the first air outlet 25. In this way, the entire driving shaft 21 will quickly enter a high-temperature state, and the stirring rod 22 and the stirring rake teeth 23 will also quickly enter a high-temperature state, which is beneficial for the vegetable food to be evenly heated during the stirring process.

[0021] Working principle and usage of this utility model:

[0022] First, the food to be dried is placed into the drying barrel 1 through the feed inlet 11, and then the external hot steam enters the drying barrel 1 through the heating port 13. After the feed inlet 11 is closed, the shaft of the driving motor 42 drives the transmission disc 44 to rotate through the transmission belt 43. When the transmission disc 44 rotates, it drives the driving shaft 21. When the driving shaft 21 rotates, the stirring rod 22 and the stirring rake teeth 23 will also rotate. During the rotation process, the steam entering the heating port 13 will enter the first air inlet 24 on the driving shaft 21 and be discharged through the first air outlet 25. In this way, the entire driving shaft 21 will quickly enter a high-temperature state, and the stirring rod 22 and the stirring rake teeth 23 will also quickly enter the high-temperature state. In the high temperature state, under the stirring of the rapidly rising temperature and continuously rotating stirring rake teeth 23, the surface of the vegetable food in contact with the inner wall of the drying barrel 1 is constantly renewed, so that the vegetable food is evenly heated. After the vegetable food is heated, the moisture in the vegetable food will vaporize, and the hot water vapor passes through the condenser 32, the buffer tank 33 and the vacuum pump 34 in sequence through the vacuum pipeline 31, wherein the condenser 32 converts the high-temperature gas inside the drying barrel 1 from gaseous state to liquid state, and flows into the buffer tank 33, which can protect the vacuum pump 34, reduce their workload and extend their service life, so that the interior of the entire drying barrel 1 realizes the function of vacuum drying.

[0023] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A vacuum drying device for vegetable food, comprising a drying barrel (1), characterized in that: The drying barrel (1) is provided with a stirring mechanism (2) inside, the stirring mechanism (2) is hollow inside, a first air inlet (24) is provided on the surface of the stirring mechanism (2), a first air outlet (25) is provided at the other end of the stirring mechanism (2), the stirring mechanism (2) is transmission-connected to an external transmission mechanism (4), and a material inlet (11), a material outlet (12) and a heating port (13) are provided on the surface of the drying barrel (1).

2. The vacuum drying device for vegetable food according to claim 1, characterized in that: The surface of the drying barrel (1) is also provided with a vacuum interface (14), and the end of the vacuum interface (14) is connected to a vacuum extraction mechanism (3).

3. The vacuum drying device for vegetable food according to claim 2, characterized in that: The stirring mechanism (2) comprises a driving shaft (21), a stirring rod (22) and stirring rake teeth (23); the interior of the driving shaft (21) is hollow; the first air inlet (24) is arranged on the surface of the driving shaft (21); the surface of the driving shaft (21) is also connected to the stirring rod (22); the end of the stirring rod (22) is provided with stirring rake teeth (23); one end of the driving shaft (21) is drivingly connected to the transmission mechanism (4); and the other end of the driving shaft (21) is connected to an external pipeline.

4. The vacuum drying device for vegetable food according to claim 3, characterized in that: The transmission mechanism (4) comprises a support frame (41), a drive motor (42), a transmission belt (43) and a transmission disc (44); one end of the drive shaft (21) is connected to the transmission disc (44); a drive motor (42) is provided on the surface of the support frame (41); and the drive motor (42) and the transmission disc (44) are connected via a transmission belt (43).

5. The vacuum drying device for vegetable food according to claim 4, characterized in that: The vacuum extraction mechanism (3) comprises a vacuum pipeline (31), a condenser (32), a buffer tank (33) and a vacuum pump (34); one end of the vacuum pipeline (31) is connected to the vacuum interface (14), and the other end of the vacuum pipeline (31) passes through the condenser (32), the buffer tank (33) and the vacuum pump (34) in sequence.

6. The vacuum drying device for vegetable food according to claim 5, characterized in that: Steam, hot water or heat-conducting oil can be poured into the interior of the heating port (13).

7. The vacuum drying device for vegetable food according to any one of claims 1 to 6, characterized in that: The outside of the drying barrel (1) is also provided with a staircase (5), one end of the staircase (5) is connected to the feed inlet (11), and the other end is connected to the ground.

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