Rotary vacuum differential pressure puffing tank

Abstract

The invention belongs to the technical field of fruit and vegetable drying, and relates to a rotary vacuum differential pressure puffing tank which comprises a puffing tank body, a material basket is arranged in the puffing tank body, the material basket is connected with a rotary material placing mechanism, and the rotary material placing mechanism comprises a rotary motor and a coupler; an output shaft of the rotating motor is connected with a coupler, the upper end of the coupler is connected to the bottom of a material basket, and a cover is arranged on the material basket. The puffing tank body is connected with a steam pipe, and an infrared coil pipe is arranged on the inner wall of the puffing tank body. Steam heating and infrared heating are optimized and combined, and the problem that infrared radiation is not uniform is solved through steam heating; and due to the addition of the infrared coil pipe, a heat source is saved, a brand-new drying mode is integrated, the heating efficiency and the heating uniformity are improved, and the drying time is shortened. The rotary motor is arranged on the puffing tank, and the material basket is connected with the rotary motor through the coupler, so that the material basket slowly rotates in the drying process, and materials are uniformly heated.

Description

Technical Field

[0001] The invention belongs to the technical field of fruit and vegetable drying, and in particular relates to a rotary vacuum pressure difference puffing tank. Background Art

[0002] Fruit and vegetable chips can retain the color, aroma, and nutritional elements of fruits and vegetables to the greatest extent, and at the same time have a crispy taste. They are one of the most popular snack foods and are praised by the international food industry as "food of the 21st century." Among them, the fruit and vegetable pressure differential puffing drying technology, as an emerging non-fried fruit and vegetable chips processing technology, overcomes the shortcomings of fried fruit and vegetable chips such as greasy taste and easy generation of harmful substances. The products produced are delicious, crispy, and of excellent quality.

[0003] At present, most of the expansion tanks adopt a single heating method, such as steam heating. The steam heating is in the interlayer of the expansion tank, and the temperature distribution in the expansion tank is uneven. The temperature near the interlayer is higher, so the material in the prior art is heated unevenly during the heating process, which will also affect the effect of the expanded product and make the quality of the expanded product unable to be effectively guaranteed. Summary of the invention

[0004] The object of the present invention is to provide a rotary vacuum pressure difference puffing tank, which solves the problem of uneven heating and poor puffing effect caused by the existing steam heating.

[0005] The present invention is achieved through the following technical solutions:

[0006] A rotary vacuum pressure difference puffing tank, comprising a puffing tank body;

[0007] A material basket is provided in the expansion tank body, and the material basket is connected to a rotating material placement mechanism, and the rotating material placement mechanism includes a rotating motor and a coupling; the output shaft of the rotating motor is connected to the coupling, and the upper end of the coupling is connected to the bottom of the material basket, and a cover is provided on the material basket;

[0008] The expansion tank body is connected with a steam pipe, and an infrared coil is arranged on the inner wall of the expansion tank body.

[0009] Furthermore, a pressure relief port is provided at the bottom of the expansion tank, and a pressure relief valve is provided on the pressure relief port.

[0010] Furthermore, a puffing tank door is arranged on one side of the puffing tank body, and a concave handle is arranged on the puffing tank door.

[0011] Furthermore, the rotating motor is arranged outside the bottom of the expanding tank body, and the coupling runs through the bottom of the expanding tank body;

[0012] Alternatively, the rotating motor is fixedly connected to the inside of the expanding tank body, and the rotating motor is placed in a heat insulation box.

[0013] Furthermore, an air inlet is fixedly connected to the upper surface of the expansion tank body, and an air volume control valve is fixedly connected to the inner surface of the air inlet.

[0014] Furthermore, a moisture detector, a temperature sensor and a pressure sensor are fixedly connected to the upper surface of the expansion tank body.

[0015] Furthermore, a glass observation window is provided on the expansion tank body.

[0016] Furthermore, the material basket and the cover are both mesh structures.

[0017] Furthermore, the infrared coils are arranged in a serpentine shape in multiple paths.

[0018] Furthermore, the puffing tank body is connected to the vacuum tank body, and the vacuum tank body is connected to a vacuum pump; the puffing tank body and the vacuum tank body are connected through a connecting pipe, and a pneumatic valve is provided on the connecting pipe.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] The present invention discloses a rotary vacuum pressure difference puffing tank, wherein the puffing tank body is connected with a steam pipe, and an infrared coil is arranged on the inner wall at the top of the puffing tank body. When it is necessary to dry fruits and vegetables, the puffing tank door is opened, the fruits and vegetables to be dried are placed in a material basket, the steam pipe is connected, the steam heats the puffing tank body, and the infrared coil is started at the same time, and the infrared coil can also heat the puffing tank body, and the steam heating and infrared are optimally combined to give full play to their respective advantages. Steam heating makes up for the problem of uneven infrared radiation; the addition of the infrared coil saves heat source and is integrated into a new drying method, thereby achieving advantages such as high quality, high efficiency, and short time, improving heating efficiency, heating uniformity, and shortening drying time. In addition, the present invention sets a rotating motor in the puffing tank, and the material basket is connected to the rotating motor through a coupling, so that the material basket can rotate slowly during the drying process, so that the material is heated evenly.

[0021] Furthermore, the material basket and the cover are designed as a mesh structure, which can ensure that the heat of steam and infrared enters the material basket, giving the material better thermal conductivity.

[0022] Furthermore, the infrared coils are arranged in multiple paths in a serpentine shape, which can heat the material more quickly and evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a vegetable drying test equipment of the present invention with steam heating, vacuum pressure difference expansion combination;

[0024] Figure 2 It is a three-dimensional schematic diagram of the structure of the expansion tank body of the present invention;

[0025] Figure 3 It is a three-dimensional schematic diagram of the structure of the material tray support of the present invention;

[0026] Figure 4 It is a three-dimensional schematic diagram of the structure of the vacuum tank body of the present invention;

[0027] Figure 5 This is the layout diagram of the infrared coil.

[0028] in:

[0029] 1. Expansion tank body; 2. Expansion tank support leg; 3. Air inlet; 4. Air volume control valve; 5. Moisture detector; 6. Temperature sensor; 7. Pressure sensor; 8. Glass observation window; 9. Pressure relief port; 10. Pressure relief valve; 11. Expansion tank interlayer; 12. Expansion tank door; 13. Concave handle; 14. Three-way valve; 15. Connecting pipe; 16. Pneumatic valve; 17. Vacuum tank body; 18. Vacuum tank support leg; 19. Vacuum pump interface; 20. Rotating motor; 21. Coupling; 22. Bottom plate; 23. Material basket; 24. Cover; 25. Infrared coil. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clear, the following is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, not all embodiments.

[0031] The components described and shown in the drawings and embodiments of the present invention may be arranged and designed in various configurations. Therefore, the detailed description of the embodiments of the present invention provided in the following drawings is not intended to limit the scope of the claimed invention, but merely represents a selected embodiment of the present invention. Based on the drawings and embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0032] It should be noted that the terms "comprises", "includes" or any other variations are intended to cover non-exclusive inclusion, so that a process, element, method, article or equipment that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to the process, element, method, article or equipment.

[0033] The features and performances of the present invention are further described in detail below in conjunction with the embodiments.

[0034] Please combine Figure 1-Figure 5The present invention discloses a rotary vacuum pressure difference puffing tank, comprising a puffing tank body 1, a puffing tank interlayer 11 is arranged outside the shell of the puffing tank body 1, a three-way valve 14 is fixedly connected to the surface of the puffing tank interlayer 11, hot steam or cooling water can pass through the three-way valve 14, an infrared coil 25 is fixedly connected to the inner wall of the puffing tank body 1, and a rotatable material basket 23 is arranged inside the puffing tank body 1.

[0035] like Figure 2 As shown, the bottom of the puffing tank body 1 is fixedly connected with a puffing tank supporting leg 2, and there are two puffing tank supporting legs 2 in total.

[0036] When heating is required, the steam needs to enter from the top three-way valve 14 and flow out from the bottom three-way valve 14; when cooling is required, the cooling water needs to enter from the bottom three-way valve 14 and flow out from the top three-way valve 14.

[0037] Better, if Figure 5 As shown, infrared coils 25 are provided on the inner walls of the top and bottom of the expansion tank body. The infrared coils 25 are arranged in a serpentine shape in multiple paths, which can heat the material more quickly and evenly.

[0038] An air inlet 3 is fixedly connected to the upper surface of the expansion tank body 1, and an air volume control valve 4 is fixedly connected to the inner surface of the air inlet 3. The air inlet 3 is used to introduce compressed air to make the pressure in the inner cavity of the expansion tank body 1 positive.

[0039] A moisture detector 5 is fixedly connected to the upper surface of the expansion tank body 1 .

[0040] A temperature sensor 6 and a pressure sensor 7 are fixedly connected to the upper surface of the expansion tank body 1 . A glass observation window 8 is provided on the surface of the expansion tank body 1 , through which the changes of the material in the tank body can be observed.

[0041] A pressure relief port 9 is fixedly connected to the lower surface of the puffing tank body 1, a pressure relief valve 10 is fixedly connected to the inner surface of the pressure relief port 9, a puffing tank door 12 is arranged on the surface of the puffing tank body 1, and a concave handle 13 is arranged on the surface of the puffing tank door 12.

[0042] like Figure 1 As shown, the puffing tank body 1 is connected to the vacuum tank body 17 , and the puffing tank body 1 and the vacuum tank body 17 are connected via a connecting pipe 15 , a pneumatic valve 16 is fixedly connected to the connecting pipe 15 , and the other end of the connecting pipe 15 is fixedly connected to the vacuum tank body 17 .

[0043] like Figure 4As shown, the lower surface of the vacuum tank body 17 is fixedly connected to a vacuum tank supporting leg 18, and there are two vacuum tank supporting legs 18. The upper surface of the vacuum tank body 17 is fixedly connected to a vacuum pump interface 19, and the vacuum pump is connected through the vacuum pump interface 19. A vacuum pressure gauge can also be added there to monitor the vacuum degree.

[0044] like Figure 3 As shown, the output end of the rotating motor 20 is fixedly connected to a coupling 21, and the upper surface of the coupling 21 is fixedly connected to a material basket 23. The bottom plate 22 of the material basket 23 is connected to the rotating motor 20 through the coupling 21, so that the material basket 23 can rotate slowly during the drying process, so that the material is heated evenly.

[0045] Preferably, a cover 24 is provided on the upper surface of the material basket 23 to prevent the material from splashing out during the puffing process.

[0046] In order to ensure the heat conductivity of the material basket 23, the material basket 23 and the cover 24 are both mesh-shaped, generally made of wire mesh.

[0047] The rotary motor 20 is disposed outside the bottom of the expanding tank body 1 , and the coupling 21 penetrates the bottom of the expanding tank body 1 .

[0048] Of course, the rotating motor 20 and the coupling 21 can also be arranged in the expanding tank body 1. In this case, it is best to protect the rotating motor 20 using a heat insulation box alone to prevent the rotating motor 20 from being affected by the environment.

[0049] The implementation principle of a steam-heated vacuum pressure difference puffing combined vegetable drying test equipment in the embodiment of the present application is as follows: when it is necessary to dry fruits and vegetables, the puffing tank door 12 is opened through the concave handle 13, the fruits and vegetables to be dried are placed in the material basket 23, the three-way valve 14 is connected to the steam pipe, the steam heats the puffing tank body 1, and the infrared coil 25 is started at the same time, and the infrared coil 25 also heats the puffing tank body 1. The material basket 23 is connected to the rotating motor 20 through the coupling 21, so that the material basket 23 can rotate slowly during the drying process, so that the material is heated evenly. Steam heating and infrared are combined to give full play to their respective advantages. Steam heating makes up for the problem of uneven infrared radiation; the addition of infrared heating tubes saves heat sources and integrates into a new drying method, thereby achieving advantages such as high quality, high efficiency, and short time. Improve heating efficiency, heating uniformity, and shorten drying time.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A rotary vacuum pressure differential puffing tank, characterized in that: It comprises an expansion tank body (1); A material basket (23) is arranged in the expansion tank body (1), and the material basket (23) is connected to a rotating material placement mechanism, and the rotating material placement mechanism comprises a rotating motor (20) and a coupling (21); the output shaft of the rotating motor (20) is connected to the coupling (21), the upper end of the coupling (21) is connected to the bottom of the material basket (23), and a cover (24) is arranged on the material basket (23); The expansion tank body (1) is connected to a steam pipe, and an infrared coil (25) is provided on the inner wall of the expansion tank body (1).

2. The rotary vacuum pressure difference expanding tank according to claim 1, characterized in that: A pressure relief port (9) is provided at the bottom of the expansion tank body (1), and a pressure relief valve (10) is provided on the pressure relief port (9).

3. The rotary vacuum pressure difference expanding tank according to claim 1, characterized in that: A puffing tank door (12) is arranged on one side of the puffing tank body (1), and a concave handle (13) is arranged on the puffing tank door (12).

4. The rotary vacuum pressure difference expanding tank according to claim 1, characterized in that: The rotating motor (20) is arranged outside the bottom of the expanding tank body (1), and the coupling (21) runs through the bottom of the expanding tank body (1); Alternatively, the rotating motor (20) is fixedly connected to the inside of the expanding tank body (1), and the rotating motor (20) is placed in a heat-insulating box.

5. The rotary vacuum pressure difference expanding tank according to claim 1, characterized in that: An air inlet (3) is fixedly connected to the upper surface of the expansion tank body (1), and an air volume control valve (4) is fixedly connected to the inner surface of the air inlet (3).

6. The rotary vacuum pressure difference expanding tank according to claim 1, characterized in that: A moisture detector (5), a temperature sensor (6) and a pressure sensor (7) are fixedly connected to the upper surface of the expansion tank body (1).

7. The rotary vacuum pressure difference expanding tank according to claim 1, characterized in that: A glass observation window (8) is provided on the expansion tank body (1).

8. The rotary vacuum pressure difference expanding tank according to claim 1, characterized in that: The material basket (23) and the cover (24) are both mesh structures.

9. The rotary vacuum pressure difference expanding tank according to claim 1, characterized in that: The infrared coil (25) is arranged in a serpentine shape with multiple paths.

10. The rotary vacuum pressure difference expanding tank according to claim 1, characterized in that: The expansion tank body (1) is connected to the vacuum tank body (17), and the vacuum tank body (17) is connected to a vacuum pump; the expansion tank body (1) and the vacuum tank body (17) are connected via a connecting pipe (15), and a pneumatic valve (16) is provided on the connecting pipe (15).

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