Energy-saving mango instant powder preparation device and preparation method

Abstract

The present invention is applicable to the field of food processing technology, and provides an energy-saving mango instant powder preparation device, including a preparation box, wherein a vacuum heating and drying chamber and an electrical chamber are provided in the preparation box, wherein the vacuum heating and drying chamber is located above the electrical chamber, and is used to dry the pre-frozen mango puree; a vacuum pump is fixedly installed in the electrical chamber, wherein the exhaust pipe and the suction pipe of the vacuum pump both extend to the outside of the preparation box, wherein the suction pipe is connected to the vacuum heating and drying chamber by a vacuumizing pipe, and is used to evacuate the vacuum heating and drying chamber. The energy-saving mango instant powder preparation device provided by the present solution significantly improves the drying efficiency of the mango puree and ensures the uniformity of heating of the material through low-boiling-point heating in a vacuum environment and uniform shaking of the material shaking mechanism, which helps to shorten the drying time and reduce energy consumption, while retaining the nutritional components and flavor of the mango and improving product quality.

Description

Technical Field

[0001] The invention belongs to the technical field of food processing, and in particular relates to an energy-saving mango instant powder preparation device and a preparation method. Background Art

[0002] Mangoes ripen in the hot season, and are very easy to rot, not resistant to storage, and difficult to carry and transport, which limits the use of mangoes. In order to break through this limitation, mangoes are processed, such as into juice drinks, fruit wine, canned food, candied fruit, jam and other products. Fruit powder products have the advantages of low moisture content, easy storage, low storage and transportation packaging costs, high utilization rate of raw materials, rich product nutrition, and a wide range of applications. Using mangoes to make mango instant powder is a good way to process mangoes.

[0003] In the prior art, mango instant powder is generally made by freezing and drying mango puree. During the drying process, the frozen puree blocks or slices are placed in the equipment, and then vacuumized and heated. Since the drying equipment currently used cannot turn over the puree blocks or slices, the raw materials are heated unevenly, resulting in low heating efficiency, and water vapor is difficult to diffuse well and is easily covered in the material pile, which increases the time required to reach the preset moisture content. Summary of the invention

[0004] The invention provides an energy-saving mango instant powder preparation device, aiming to solve the problems raised in the above background technology that the currently used drying equipment cannot turn over the raw pulp blocks or slices, the raw materials are heated unevenly, the heating efficiency is low, and the water vapor is difficult to diffuse well.

[0005] To solve the above problems, the present invention is implemented as follows: an energy-saving mango instant powder preparation device comprises: a preparation box, wherein a vacuum heating and drying chamber and an electrical chamber are provided in the preparation box, wherein the vacuum heating and drying chamber is located above the electrical chamber and is used to dry the pre-frozen mango puree; a vacuum pump, fixedly installed in the electrical chamber, wherein the exhaust pipe and the suction pipe of the vacuum pump both extend to the outside of the preparation box, wherein the suction pipe is connected to the vacuum heating and drying chamber by a vacuumizing pipe and is used to evacuate the vacuum heating and drying chamber; a plurality of material shaking mechanisms, evenly arranged in the vacuum heating and drying chamber and used to shake and break up the material to be dried, wherein a plurality of light heating lamp panels are fixedly installed in the vacuum heating and drying chamber, wherein the plurality of light heating lamp panels are divided into a plurality of groups and are respectively and staggeredly arranged above the plurality of material shaking mechanisms and are used to heat and dry the material.

[0006] Preferably, the material shaking mechanism includes an isolation plate, a vibrating discharge plate, a plurality of reset buffer rods and a reciprocating drive mechanism, the isolation plate is fixedly installed in the vacuum heating and drying chamber and is located below the corresponding light heating lamp board, the vibrating discharge plate is slidably arranged in the vacuum heating and drying chamber and is located between the corresponding isolation plate and the light heating lamp board, a plurality of the reset buffer rods are connected between the isolation plate and the vibrating discharge plate, and the reciprocating drive mechanism is arranged on the isolation plate, and is used to push the vibrating discharge plate to slide reciprocatingly up and down to vibrate the material.

[0007] Preferably, the reset buffer rod includes a U-shaped bracket, an I-shaped guide rod, a reset spring and a shock-absorbing pad. The U-shaped bracket is fixedly mounted on the top of the isolation plate, the I-shaped guide rod is slidably mounted on the U-shaped bracket, the top of the I-shaped guide rod is fixedly connected to the bottom of the vibrating discharge plate, the reset spring is slidably mounted on the I-shaped guide rod, the top of the reset spring is in conflict with the top inner wall of the U-shaped bracket, and the bottom end is in conflict with the bottom expanded part of the I-shaped guide rod, the shock-absorbing pad is fixedly mounted on the bottom end of the I-shaped guide rod, and the shock-absorbing pad can be in conflict with the isolation plate.

[0008] Preferably, the reciprocating drive mechanism includes a wear-resistant pad, a bearing seat, a push shaft and a cam. The wear-resistant pad is fixedly mounted on the bottom of the vibrating discharge plate, the bearing seat is fixedly mounted on the top of the isolation plate, the push shaft is rotatably mounted on the bearing seat, and the cam is fixedly sleeved on the push shaft. The outer edge of the cam is in contact with the bottom of the wear-resistant pad, and is used to push the wear-resistant pad and the vibrating discharge plate during rotation.

[0009] Preferably, an extension shaft 1 is rotatably mounted on the inner wall of one side of the vacuum heating drying chamber, a bevel gear 1 is fixedly mounted on one end of the extension shaft 1 corresponding to the push shaft 1, the two bevel gears 1 are meshed with each other, and the other end of the extension shaft 1 extends outside the preparation box.

[0010] Preferably, a drive motor is fixedly installed in the electrical cavity, and the output shaft of the drive motor rotates and extends outside the preparation box. The output shaft of the drive motor and multiple extension shafts are fixedly installed with pulleys on one end outside the preparation box, and the same synchronous belt is mounted on the multiple pulleys.

[0011] Preferably, the preparation box is located on one side of the pulley and is rotatably mounted with a belt tensioning wheel and a belt guide roller, and the synchronous belt passes around the belt tensioning wheel and the belt guide roller.

[0012] Preferably, the other side of the vacuum heating drying chamber corresponding to the synchronous belt is an operating surface and is hinged with a door. An electric control box and a data table are provided on the outside of the door, and a vacuum monitor, a temperature monitor, and a moisture content monitor compatible with the electric control box and the data table are provided on the inside of the door.

[0013] Preferably, a pressure relief pipe is provided on the box door, the pressure relief pipe is communicated with the vacuum heating drying chamber and is provided with a valve.

[0014] The present invention also includes a method for preparing mango instant powder using the energy-saving mango instant powder preparation device, comprising the following steps:

[0015] Step 1: When preparing the mango instant powder of the present invention, first, mango puree is sequentially concentrated, frozen, dried and crushed to obtain mango instant powder, and the mango puree is concentrated before freeze-drying, and the present device is used during drying. When in use, the concentrated and frozen mango puree is made into small pieces or slices and put into the vibrating discharge plates of multiple shaking material mechanisms, and the pieces are evenly laid. When putting in, the box door is opened, and the mango puree is put in through the operating surface. After the putting in is completed, the box door is closed to ensure that the valve of the pressure relief pipe is closed to avoid air leakage;

[0016] Step 2: Use the electric control box to start the vacuum pump in the electrical cavity. The vacuum pump extracts the air in the vacuum heating and drying cavity. The air passes through the vacuum pipe and the suction pipe, and then is converted by the vacuum pump and discharged from the exhaust pipe. At this time, the vacuum monitor monitors the real-time situation of vacuuming and displays it on the data table;

[0017] Step 3: When the vacuum reaches the preset value, turn on the light heating lamp board to irradiate and heat the material laid on the vibrating discharge plate, heating it to 40-60°C. At this time, start the drive motor 1, and the output shaft of the drive motor 1 rotates. The pulley and the synchronous belt are used to drive the outer shaft 1 of multiple shaking mechanisms to rotate synchronously. When the outer shaft 1 rotates, two meshing bevel gears 1 drive the corresponding push shaft 1 to rotate, and the push shaft 1 drives the cam 1 to rotate synchronously. When the cam 1 rotates, the push wear-resistant pad and the vibrating discharge plate reciprocate up and down. When the vibrating discharge plate is displaced, it drives the I-shaped guide rod to slide along the U-shaped bracket and compress or release the reset spring 1, and the shock-absorbing pad is used for buffering. The vibrating discharge plate is used to vibrate up and down at a fast pace to make the upper material vibrate, which can effectively ensure the uniformity of heating. In this process, the vacuuming speed is controlled and the heating temperature is maintained. The moisture in the material is directly sublimated from solid ice to gaseous water vapor at low temperature and is pumped away by the vacuum pump until the moisture content in the mango puree drops to ≤7%. At this time, the drying process is completed.

[0018] Compared with the related art, the energy-saving mango instant powder preparation device and preparation method provided by the present invention have the following beneficial effects:

[0019] Compared with the existing technology, this solution significantly improves the drying efficiency of mango puree and ensures the uniformity of heating of the material through low-boiling-point heating in a vacuum environment and uniform shaking of the shaking mechanism, which helps to shorten the drying time and reduce energy consumption, while retaining the nutritional components and flavor of mangoes and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main stereoscopic structure of an energy-saving mango instant powder preparation device provided by the present invention;

[0021] Figure 2 It is a rear perspective structural schematic diagram of an energy-saving mango instant powder preparation device provided by the present invention;

[0022] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure on the other side;

[0023] Figure 4 for Figure 3 A schematic diagram of a three-dimensional structure with part of the material guide tube removed;

[0024] Figure 5 for Figure 2 An enlarged structural diagram of part A shown in FIG.

[0025] Figure 6 for Figure 2 An enlarged schematic diagram of the structure of part B shown in FIG.

[0026] Figure 7 for Figure 4 An enlarged schematic diagram of the structure of part C shown in FIG.

[0027] Figure 8 It is a schematic diagram of the main cross-sectional structure of an energy-saving mango instant powder preparation device provided by the present invention;

[0028] Fig. 9 for Figure 8 An enlarged structural diagram of part D shown in FIG.

[0029] Fig.10 for Figure 8 An enlarged structural diagram of part E shown in FIG.

[0030] Fig.11 It is a rear structural schematic diagram of an energy-saving mango instant powder preparation device provided by the present invention;

[0031] Fig.12 for Fig.11 An enlarged structural diagram of part F shown in FIG.

[0032] Fig.13 for Fig.11Schematic diagram of the enlarged structure of part G shown in FIG.

[0033] Figure numerals: 1, preparation box; 2, vacuum heating drying chamber; 3, electrical chamber; 4, vacuum pump; 5, exhaust pipe; 6, suction pipe; 7, vacuum tube; 8, light heating lamp board; 9, isolation plate; 10, vibration discharge plate; 11, U-shaped bracket; 12, I-shaped guide rod; 13, reset spring one; 14, shock-absorbing pad; 15, wear-resistant pad; 16, bearing seat; 17, push shaft one; 18, cam one; 19, extension shaft one; 20, bevel gear one; 21, drive motor one; 22, pulley; 23, synchronous belt; 24, belt tensioner; 25, belt guide roller; 26, box door; 27, electric control box; 28, data table; 29, pressure relief pipe; 30, grinding chamber; 31, discharge port closing plate; 32 , receiving hopper; 33, material guide pipe; 34, pushing screw; 35, transverse plate; 36, adaptive sleeve; 37, reset spring two; 38, strip plate; 39, discharge avoidance shaft; 40, middle shaft; 41, sprocket transmission component one; 42, sprocket transmission component two; 43, transmission spindle; 44, driving motor two; 45, sprocket transmission component three; 46, sprocket transmission component four; 47, grinding mortar; 48, powder discharge pipe; 49, grinding groove; 50, grinding shaft; 51, grinding head; 52, extension shaft two; 53, bevel gear two; 54, elastic metal guide plate; 55, rubber strip; 56, push shaft two; 57, cam two; 58, sprocket transmission component five; 59, reversing shaft; 60, bevel gear three. DETAILED DESCRIPTION

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" in the specification and claims of the present application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] The embodiment of the present invention provides an energy-saving mango instant powder preparation device, such as Figure 1-13 As shown, the energy-saving mango instant powder preparation device includes: a preparation box 1, wherein a vacuum heating and drying chamber 2 and an electrical chamber 3 are provided in the preparation box 1, wherein the vacuum heating and drying chamber 2 is located above the electrical chamber 3 and is used for drying the pre-frozen mango puree; a vacuum pump 4, which is fixedly installed in the electrical chamber 3, wherein the exhaust pipe 5 and the suction pipe 6 of the vacuum pump 4 are both extended to the outside of the preparation box 1, wherein the suction pipe 6 is connected to the vacuum heating and drying chamber 2 by a vacuumizing pipe 7 and is used for vacuumizing the vacuum heating and drying chamber 2; a plurality of material shaking mechanisms, which are evenly arranged in the vacuum heating and drying chamber 2 and are used for shaking and breaking up the material to be dried, wherein a plurality of light heating lamp panels 8 are fixedly installed in the vacuum heating and drying chamber 2, wherein the plurality of light heating lamp panels 8 are divided into a plurality of groups and are respectively and staggeredly arranged above the plurality of material shaking mechanisms and are used for heating and drying the material.

[0037] In this embodiment, first, the concentrated and frozen mango puree is made into small pieces or slices and placed on a material shaking mechanism evenly placed in a vacuum heating drying chamber 2 in a preparation box 1. Ensure that the material is evenly distributed to maximize the drying effect.

[0038] Subsequently, the vacuum pump 4 in the electrical chamber 3 is started, and the vacuum pump 4 extracts the air in the vacuum heating and drying chamber 2. The air passes through the vacuum pipe 7 and the suction pipe 6, and then is converted by the vacuum pump 4 and discharged from the exhaust pipe 5 until a preset vacuum degree is reached.

[0039] In a vacuum environment, multiple light heating lamp panels 8 in the vacuum heating drying chamber 2 are started. These light heating lamp panels 8 are divided into multiple groups and staggered above the material shaking mechanism to provide a uniform and efficient heat source for the raw materials; at the same time, the material shaking mechanism starts to work, continuously shaking and breaking up the materials to prevent material accumulation and uneven heating; as the heating and material shaking continue, the mango pulp gradually loses moisture and is finally dried.

[0040] This solution significantly improves the drying efficiency of mango puree and ensures the uniform heating of the material through low-boiling-point heating in a vacuum environment and uniform shaking of the material shaking mechanism, which helps to shorten the drying time and reduce energy consumption, while retaining the nutrients and flavor of mangoes and improving product quality.

[0041] In a further preferred embodiment of the present invention, the material shaking mechanism includes an isolation plate 9, a vibrating discharge plate 10, a plurality of reset buffer rods and a reciprocating drive mechanism, the isolation plate 9 is fixedly installed in the vacuum heating and drying chamber 2 and is located below the corresponding light heating lamp board 8, the vibrating discharge plate 10 is slidably arranged in the vacuum heating and drying chamber 2 and is located between the corresponding isolation plate 9 and the light heating lamp board 8, a plurality of the reset buffer rods are connected between the isolation plate 9 and the vibrating discharge plate 10, and the reciprocating drive mechanism is arranged on the isolation plate 9, and is used to push the vibrating discharge plate 10 to slide reciprocatingly up and down to vibrate the material.

[0042] In this embodiment, an isolation plate 9 is installed in the vacuum heating drying chamber 2 so that it is located below the corresponding light heating lamp plate 8, and a vibrating discharge plate 10 is slidably arranged in the vacuum heating drying chamber 2. The two ends of the reset buffer rod are respectively connected to the isolation plate 9 and the vibrating discharge plate 10 to provide reset support for the vibrating discharge plate 10. Finally, a reciprocating drive mechanism is arranged on the isolation plate 9, which will be used to push the vibrating discharge plate 10 to make it slide back and forth up and down to achieve the effect of shaking the material.

[0043] As the heating and shaking continue, the moisture in the raw materials is gradually evaporated. During the drying process, due to the shaking mechanism, the raw materials always remain loose, avoiding the problems of accumulation and uneven heating. Finally, when the raw materials are completely dry, the heating and shaking operations can be stopped.

[0044] The introduction of the material shaking mechanism significantly improves the uniformity of the raw materials during the drying process. The raw materials are continuously shaken and broken up by the up and down reciprocating sliding motion of the vibrating discharge plate 10, which prevents the accumulation of materials and the occurrence of uneven heating, thereby ensuring the consistency of the drying effect.

[0045] The shaking action of the material shaking mechanism helps to promote the rapid evaporation of moisture inside the raw materials. At the same time, since the materials are always kept loose during the drying process, the heat transfer efficiency is also improved, further shortening the drying time and improving the drying efficiency.

[0046] In a further preferred embodiment of the present invention, the reset buffer rod includes a U-shaped bracket 11, an I-shaped guide rod 12, a reset spring 13 and a shock-absorbing pad 14, the U-shaped bracket 11 is fixedly installed on the top of the isolation plate 9, the I-shaped guide rod 12 is slidably installed on the U-shaped bracket 11, the top of the I-shaped guide rod 12 is fixedly connected to the bottom of the vibrating discharge plate 10, the reset spring 13 is slidably sleeved on the I-shaped guide rod 12, the top of the reset spring 13 is in conflict with the top inner wall of the U-shaped bracket 11, and the bottom end is in conflict with the bottom expanded part of the I-shaped guide rod 12, the shock-absorbing pad 14 is fixedly installed at the bottom end of the I-shaped guide rod 12, and the shock-absorbing pad 14 can conflict with the isolation plate 9.

[0047] In this embodiment, in the material shaking mechanism, the reciprocating drive mechanism is started to make the vibrating discharge plate 10 slide up and down reciprocatingly under the guidance of the I-shaped guide rod 12. During the sliding process, the reset spring 13 provides a reset force for the I-shaped guide rod 12 to ensure that the vibrating discharge plate 10 can quickly return to its initial position. When the vibrating discharge plate 10 contacts the isolation plate 9, the shock-absorbing pad 14 plays a buffering role to reduce impact and noise. At the same time, the light heating lamp board 8 heats the mango puree, and combined with the vibration effect of the material shaking mechanism, the material is evenly dried.

[0048] In a further preferred embodiment of the present invention, the reciprocating drive mechanism includes a wear-resistant pad 15, a bearing seat 16, a push shaft 17 and a cam 18, the wear-resistant pad 15 is fixedly mounted on the bottom of the vibrating discharge plate 10, the bearing seat 16 is fixedly mounted on the top of the isolation plate 9, the push shaft 17 is rotatably mounted on the bearing seat 16, the cam 18 is fixedly sleeved on the push shaft 17, and the outer edge of the cam 18 is in contact with the bottom of the wear-resistant pad 15, and is used to push the wear-resistant pad 15 and the vibrating discharge plate 10 during rotation.

[0049] In this embodiment, the driving device is started to rotate the push shaft 17 during use. As the cam 18 rotates, its outer edge will continuously push the wear-resistant pad 15, so that the vibrating discharge plate 10 can slide up and down reciprocatingly in the vertical direction, realizing efficient and stable driving of the vibrating discharge plate 10. The use of the wear-resistant pad 15 reduces friction loss and improves driving efficiency; the bearing seat 16 provides stable support for the push shaft 17, and the rotation and pushing action of the cam 18 enables the vibrating discharge plate 10 to slide up and down reciprocatingly according to a predetermined trajectory, thereby improving the uniformity and stability of the shaking material.

[0050] In a further preferred embodiment of the present invention, an extension shaft 19 is rotatably mounted on the inner wall of one side of the vacuum heating and drying chamber 2, and a bevel gear 20 is fixedly mounted on one end of the extension shaft 19 corresponding to the push shaft 17, the two bevel gears 20 are meshed with each other, and the other end of the extension shaft 19 extends to the outside of the preparation box 1.

[0051] In this embodiment, one end of the extension shaft 19 is rotatably mounted in the vacuum heating drying chamber 2, and the other end extends to the outside of the preparation box 1, which is convenient for access or control of an external power source. Two bevel gears 20 are respectively fixedly mounted on the corresponding ends of the top push shaft 17 and the extension shaft 19, forming a close meshing relationship, realizing the transmission of power from the extension shaft 19 to the top push shaft 17.

[0052] In a further preferred embodiment of the present invention, a drive motor 21 is fixedly installed in the electrical cavity 3, and the output shaft of the drive motor 21 rotates and extends outside the preparation box 1. The output shaft of the drive motor 21 and multiple extension shafts 19 are fixedly installed with pulleys 22 on one end outside the preparation box 1, and the multiple pulleys 22 are provided with the same synchronous belt 23.

[0053] In this embodiment, the driving motor 21 is fixedly installed in the electrical cavity 3, and its output shaft not only rotates and extends to the outside of the preparation box 1, but also the output shaft and multiple extension shafts 19 (each of which is linked to the top push shaft 17 through the bevel gear 20) are equipped with a pulley 22 at one end outside the preparation box 1. These pulleys 22 are connected together by a synchronous belt 23, which realizes the synchronous transmission of the power of the driving motor 21 to the multiple extension shafts 19, ensuring that the power can be evenly and synchronously distributed to each extension shaft 19. This further ensures the consistency and stability of the drive of the vibrating discharge plate 10, and improves the uniformity and controllability in the production process.

[0054] In a further preferred embodiment of the present invention, the preparation box 1 is rotatably mounted with a belt tensioning wheel 24 and a belt guide roller 25 on one side of the pulley 22 , and the synchronous belt 23 passes around the belt tensioning wheel 24 and the belt guide roller 25 .

[0055] In this embodiment, a belt tensioning wheel 24 and a belt guide roller 25 are rotatably mounted on the preparation box 1 on one side of the pulley 22. These two components act together on the synchronous belt 23 to ensure the stability and reliability of the transmission system.

[0056] In a further preferred embodiment of the present invention, the other side of the vacuum heating drying chamber 2 corresponding to the synchronous belt 23 is an operating surface and is hingedly provided with a door 26, an electric control box 27 and a data table 28 are provided on the outside of the door 26, and a vacuum monitor, a temperature monitor, and a moisture content monitor compatible with the electric control box 27 and the data table 28 are provided on the inside of the door 26.

[0057] In this embodiment, a hinged door 26 is provided on the other side of the synchronous belt 23, i.e., the operating surface, to facilitate the user to open and close the equipment. At the same time, an electric control box 27 and a data table 28 are arranged on the outside of the door 26 for electrical control and data display of the equipment. On the inside of the door 26, a vacuum monitor, a temperature monitor, and a moisture content monitor that are compatible with the electric control box and the data table are installed. These monitors directly face the inside of the vacuum heating drying chamber to realize real-time monitoring of key process parameters.

[0058] The hinged design of the door 26 allows the user to easily open or close the vacuum heating drying chamber 2, which is convenient for placing and removing materials and cleaning and maintenance work in the chamber. At the same time, the external layout of the electric control box 27 and the data table 28 also facilitates the user's operation and monitoring, and improves the overall convenience of the equipment.

[0059] The vacuum monitor, temperature monitor and moisture content monitor are directly installed on the inner side of the chamber door, which can ensure that these monitors directly face and are close to the inside of the vacuum heating drying chamber 2, so as to achieve accurate monitoring of process parameters. This layout reduces the attenuation and interference in the signal transmission process and improves the accuracy and real-time performance of the monitoring data.

[0060] In a further preferred embodiment of the present invention, a pressure relief pipe 29 is provided on the box door 26, and the pressure relief pipe 29 is communicated with the vacuum heating drying chamber 2 and is provided with a valve.

[0061] In this embodiment, during the vacuum heating and drying process, if the pressure in the vacuum heating and drying chamber 2 increases abnormally, it may cause damage to the equipment or cause safety hazards. By adding a pressure relief pipe 29, the user can quickly open the valve when necessary to release the excessive pressure in the vacuum heating and drying chamber 2 to the outside, thereby effectively avoiding potential safety risks.

[0062] The provision of the pressure relief pipe 29 enables the user to adjust the pressure state in the vacuum heating drying chamber 2 as needed. For example, after the drying process is finished, the pressure in the vacuum heating drying chamber 2 can be quickly reduced by opening the valve of the pressure relief pipe 29, so as to open the box door 26 more quickly and take out the materials. This flexibility improves the adaptability and use efficiency of the equipment.

[0063] In order to further improve the use effect of the device, in addition to the above scheme, this scheme also has the following embodiments:

[0064] In another embodiment of the present invention, a grinding chamber 30 is provided on the preparation box 1, and the grinding chamber 30 is located between the vacuum heating and drying chamber 2 and the electrical chamber 3. Multiple discharge ports are provided on the corresponding sides of the vacuum heating and drying chamber 2, and the multiple discharge ports are respectively arranged corresponding to the multiple vibration discharge plates 10. The bottom inner walls of the multiple discharge ports are inclined downward, and the corresponding sides of the preparation box 1 are detachably installed with multiple discharge port closing plates 31, which respectively close the multiple discharge ports. Multiple receiving hoppers 32 are fixedly installed on the corresponding sides of the preparation box 1. The multiple receiving hoppers 32 are respectively located below the multiple discharge ports and the discharge port closing plates 31, and are used to receive the discharged materials. The bottoms of the multiple receiving hoppers 32 are fixedly installed with material guide pipes 33, and the multiple receiving hoppers 32 and the material guide pipes 33 are arranged in sequence from top to bottom. The material guide pipes 33 located at the bottom on both sides are respectively connected with the two sides of the grinding chamber 30, and are used to introduce materials into the grinding chamber 30.

[0065] In this embodiment, the grinding chamber 30 is located between the vacuum heating and drying chamber 2 and the electrical chamber 3. A plurality of discharge ports corresponding to the vibrating discharge plate 10 are provided on both sides of the vacuum heating and drying chamber 2. The bottom inner walls of these discharge ports are inclined to facilitate the discharge of materials. At the same time, discharge port closing plates 31 are detachably installed on both sides of the preparation box 1 to close the discharge ports in the non-working state. A plurality of receiving hoppers 32 and material guide pipes 33 are arranged below, which are connected in sequence and finally guide the materials into the grinding chamber 30.

[0066] By adding the grinding chamber 30 and the supporting material discharging, receiving and guiding, the present invention realizes an integrated processing flow from vacuum heating drying to material grinding. This not only reduces the material transportation time between different equipment, but also reduces the loss and contamination risk during the transportation process, thereby significantly improving the efficiency and quality of material processing.

[0067] The inclined design of the inner wall at the bottom of the discharge port and the sequentially connected arrangement of the receiving hopper 32 and the guide pipe 33 together form a smooth material flow path, which helps to reduce the blockage and retention of materials during the discharge and transportation process, and improves the fluidity and processing efficiency of the materials.

[0068] In another embodiment of the present invention, a plurality of pushing screws 34 are rotatably installed in the vacuum heating and drying chamber 2, and the plurality of pushing screws 34 are respectively located above the plurality of vibrating discharge plates 10 and the corresponding two discharge port closing plates 31, and both ends of the plurality of pushing screws 34 extend to the outside of the preparation box 1, and the plurality of pushing screws 34 are threadedly sleeved with a transverse plate 35, and the bottoms of the plurality of transverse plates 35 are slidably sleeved with an adaptive sleeve plate 36 for telescopically adapting to the vibration displacement of the vibrating discharge plate 10, the bottoms of the plurality of adaptive sleeve plates 36 are respectively in contact with the tops of the plurality of vibrating discharge plates 10, and both sides are in sliding contact with the inner wall of the vacuum heating and drying chamber 2, and the plurality of adaptive sleeve plates 36 are provided with a reset spring 2 37, and the top end of the reset spring 2 37 is in conflict with the bottom of the transverse plate 35, for adapting to the telescopic movement of the transverse plate 35 and the adaptive sleeve plate 36.

[0069] In this embodiment, a plurality of push screws 34 are introduced into the vacuum heating drying chamber 2, and a transverse plate 35 is threadedly sleeved on each push screw 34, and an adaptive sleeve 36 is slidably sleeved on the bottom of the transverse plate 35. The adaptive sleeve 36 can be extended and retracted to adapt to the vibration displacement of the vibrating discharge plate, and maintain close contact with the top of the vibrating discharge plate 10 and the inner wall of the vacuum heating drying chamber 2. Therefore, a reset spring 2 37 is provided in the adaptive sleeve 36 to provide the necessary reset force when the transverse plate 35 and the adaptive sleeve 36 are extended and retracted.

[0070] When it is necessary to discharge the material into the grinding chamber 30 for grinding, first remove the discharge port closing plate 31, then rotate the pushing screw 34 to move the transverse plate 35 and the adaptive sleeve plate 36 to push out the material. The introduction of the pushing screw 34 allows the material to be actively pushed out after being dried, and maintains close contact with the vibrating discharge plate 10 when pushing the material, thereby avoiding accumulation or local vacancies of the material during the pushing process.

[0071] In another embodiment of the present invention, a strip plate 38 is fixedly installed on one side of the preparation box 1, and a plurality of discharge avoidance shafts 39 are rotatably installed on the strip plate 38. A plurality of middle shafts 40 are rotatably installed on one side of the discharge avoidance shaft 39 of the preparation box 1. The number of the discharge avoidance shaft 39, the middle shaft 40 and the pushing screw 34 are equal and arranged one by one. The plurality of pushing screws 34 are respectively connected to the corresponding middle shafts 40 by the same sprocket transmission component 1 41, and the plurality of middle shafts 40 are respectively connected to the corresponding discharge avoidance shaft 39 by the same sprocket transmission component 2 42.

[0072] In this embodiment, a strip plate 38 is added to one side of the preparation box 1, on which a plurality of discharge avoidance shafts 39 are rotatably mounted. At the same time, a plurality of middle section shafts 40 are mounted at corresponding positions on the other side of the preparation box 1, and the number of these shafts is equal to and one-to-one corresponds to the push screw 34. Through the sprocket transmission component 1 41, the push screw 34 and the middle section shaft 40 realize synchronous transmission; and the middle section shaft 40 is connected to the discharge avoidance shaft 39 through the sprocket transmission component 2 42, forming a complete transmission system, which not only improves the transmission efficiency and synchronization, but also enhances the compactness and stability of the device.

[0073] In another embodiment of the present invention, a transmission main shaft 43 is rotatably mounted on the strip plate 38, and the transmission main shaft 43 passes through the strip plate 38. A drive motor 2 44 is provided in the electrical cavity 3, and the output shaft of the drive motor 2 44 rotates and extends outside the preparation box 1. The output shaft of the drive motor 2 44 is connected to the transmission main shaft 43 by a same sprocket transmission assembly 3 45, and the transmission main shaft 43 is connected to a corresponding discharge avoidance shaft 39 by a same sprocket transmission assembly 4 46.

[0074] In this embodiment, a transmission main shaft 43 is added to the strip plate 38, and the transmission main shaft 43 passes through the strip plate 38 and is connected to the driving motor 2 44 in the electrical chamber 3. The driving motor 2 44 drives the transmission main shaft 43 to rotate through the sprocket transmission assembly 3 45, and the transmission main shaft 43 realizes synchronous transmission with one of the discharge avoidance shafts 39 through the sprocket transmission assembly 4 46. This design further improves the transmission system of the present invention, so that multiple discharge avoidance shafts 39 and related push screws 34 and other components can work together through a single driving source.

[0075] In another embodiment of the present invention, a grinding mortar 47 is fixedly installed on the top inner wall of the electrical cavity 3, and the grinding mortar 47 is communicated with the grinding cavity 30. A powder discharge pipe 48 is connected to the bottom of the grinding mortar 47, and the powder discharge end of the powder discharge pipe 48 extends to the outside of the preparation box 1. The bottom of the grinding cavity 30 and the grinding mortar 47 constitute a grinding groove 49. A grinding shaft 50 is rotatably installed on the top inner wall of the grinding cavity 30, and a grinding head 51 is fixedly installed on the bottom end of the grinding shaft 50, and the grinding head 51 extends into the grinding groove 49. An extension shaft 2 52 is rotatably installed on the inner wall of one side of the grinding cavity 30, and a bevel gear 2 53 is fixedly sleeved on the extension shaft 2 52 and the grinding shaft 50, and the two bevel gears 2 53 are meshed with each other.

[0076] In this embodiment, a grinding mortar 47 is added to the top of the electrical chamber 3, and the grinding mortar 47 is connected to the grinding chamber 30. A powder discharge pipe 48 is provided at the bottom of the grinding mortar 47 to discharge the ground powder out of the preparation box 1. A grinding shaft 50 is installed in the grinding chamber 30, and a grinding head 51 is fixed at the bottom end thereof, which goes deep into the grinding groove 49 to grind the material. At the same time, the outer shaft 2 52 on one side of the grinding chamber 30 is meshed with the grinding shaft 50 through the bevel gear 2 53, realizing the transmission of power and the rotation of the grinding shaft.

[0077] The synergistic effect of the grinding shaft 50 and the grinding head 51, combined with the design of the grinding groove 49, enables the material to be ground evenly and fully during the grinding process, thereby improving the grinding efficiency and accuracy.

[0078] The combination design of the grinding mortar 47 and the powder discharge pipe 48 enables the ground powder to be discharged smoothly out of the preparation box 1, avoiding the retention and accumulation of powder inside the equipment. This not only improves production efficiency, but also reduces the workload of cleaning and maintenance.

[0079] In another embodiment of the present invention, elastic metal guide plates 54 are provided on both sides of the grinding head 51. The two elastic metal guide plates 54 are located on one side of the grinding head 51 and are fixedly connected to the bottom inner wall of the grinding chamber 30. The other side is fixedly connected to the side wall of the grinding chamber 30 by a rubber strip 55. The remaining two sides are in sliding contact with the inner wall of the grinding chamber 30. The elastic metal guide plates 54 are tilted and located below the corresponding guide tube 33. A second push shaft 56 is rotatably installed in the grinding chamber 30. The two push shafts 56 are respectively located on the two elastic metal guide plates 54. Below, the two pushing shafts 2 56 are fixedly sleeved with cams 2 57, the outer edges of the cams 2 57 are in contact with the bottom of the corresponding elastic metal guide plate 54, the same end of the two pushing shafts 2 56 and the extension shaft 2 52 are connected by the same sprocket transmission assembly 5 58 for transmission, the strip plate 38 is located on one side of the sprocket transmission assembly 58 and is rotatably mounted with a reversing shaft 59, both ends of the reversing shaft 59 and the corresponding transmission main shaft 43 and the pushing shaft 2 56 are fixedly mounted with bevel gears 3 60, and the four bevel gears 3 60 are meshed with each other in pairs.

[0080] In this embodiment, elastic metal guide plates 54 are added on both sides of the grinding head 51. They are set in an inclined posture and connected to the side wall of the grinding chamber 30 through a rubber strip 55 to ensure effective material guidance during the grinding process. In addition, a push shaft 2 56 and a cam 2 57 thereon are introduced, which are connected to the extension shaft 2 52 through a sprocket transmission assembly 5 58 to achieve synchronous transmission. The reversing shaft 59 and the bevel gear 3 60 thereon are responsible for transmitting the power of the transmission main shaft 43 to the push shaft 2 56 to achieve power reversal and distribution.

[0081] The design of the elastic metal guide plate 54 allows the materials in the grinding process to flow to the discharge port more smoothly, reducing the retention and accumulation of materials in the grinding chamber. At the same time, the inclined setting helps the materials to slide naturally under the action of gravity, thereby improving the discharge efficiency.

[0082] Through the coordinated use of the sprocket transmission assembly 5 58 and the bevel gear 3 60 , power transmission and reversing from the transmission main shaft 43 to the push shaft 2 56 are achieved.

[0083] The combination of the elastic metal guide plate 54 and the rubber strip 55 not only ensures the material guiding effect, but also reduces the friction and wear with the inner wall of the grinding chamber 30. In addition, the contact design between the cam 2 57 and the elastic metal guide plate 54 can vibrate the elastic metal guide plate 54 to a certain extent, so that the elastic metal guide plate 54 can reciprocate and discharge the material faster.

[0084] The present invention also includes a method for preparing mango instant powder using the energy-saving mango instant powder preparation device, comprising the following steps:

[0085] Step 1: When preparing the mango instant powder of the present invention, first, the mango puree is concentrated, frozen, dried and crushed in sequence to obtain the mango instant powder. The mango puree is concentrated before freeze-drying, and the present device is used during drying. When in use, the concentrated and frozen mango puree is made into small pieces or slices and put into the vibrating discharge plates 10 of multiple shaking material mechanisms, and the pieces are evenly laid. When putting in, the box door 26 is opened, and the powder is put in through the operating surface. After the putting in is completed, the box door 26 is closed to ensure that the valve of the pressure relief pipe 29 is closed to avoid air leakage;

[0086] Step 2: Use the electric control box 27 to start the vacuum pump 4 in the electrical chamber 3. The vacuum pump 4 extracts the air in the vacuum heating and drying chamber 2. The air passes through the vacuum pipe 7 and the suction pipe 6 and is converted by the vacuum pump 4 and then discharged from the exhaust pipe 5. At this time, the vacuum monitor monitors the real-time vacuuming situation and displays it on the data table 28;

[0087] Step 3: When the vacuum reaches the preset value, turn on the light heating lamp board 8 to irradiate and heat the material laid on the vibrating discharge plate 10, and heat it to 40-60°C. At this time, start the drive motor 21, and the output shaft of the drive motor 21 rotates. The pulley 22 and the synchronous belt 23 are used to drive the extension shaft 19 of multiple material shaking mechanisms to rotate synchronously. When the extension shaft 19 rotates, the two meshing bevel gears 20 are used to drive the corresponding push shaft 17 to rotate, and the push shaft 17 drives the cam 18 to rotate synchronously. When the cam 18 rotates, the wear-resistant pad 15 and The vibrating discharge plate 10 reciprocates up and down. When displaced, the vibrating discharge plate 10 drives the I-shaped guide rod 12 to slide along the U-shaped bracket 11 and compress or release the reset spring 13. The shock-absorbing pad 14 performs buffering. The vibrating discharge plate 10 reciprocates up and down at a fast pace to vibrate the material above, which can effectively ensure the uniformity of heating. In this process, the vacuuming speed is controlled and the heating temperature is maintained. The moisture in the material is directly sublimated from solid ice to gaseous water vapor at low temperature and is pumped away by the vacuum pump 4 until the moisture content in the mango puree drops to ≤7%. At this time, the drying process is completed.

[0088] In summary, compared with the relevant technology, this device significantly improves the drying efficiency of mango puree and ensures the uniform heating of the material through low-boiling point heating in a vacuum environment and uniform shaking of the shaking mechanism, which helps to shorten the drying time and reduce energy consumption, while retaining the nutritional components and flavor of mangoes and improving product quality.

[0089] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0090] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. An energy-saving mango instant powder preparation device, characterized in that, include: A preparation box, wherein a vacuum heating and drying chamber and an electrical chamber are provided in the preparation box, wherein the vacuum heating and drying chamber is located above the electrical chamber and is used for drying the pre-frozen mango puree; A vacuum pump is fixedly installed in the electrical cavity, the exhaust pipe and the suction pipe of the vacuum pump are extended to the outside of the preparation box, and the suction pipe is connected to the vacuum heating and drying chamber by a vacuum pumping pipe, so as to evacuate the vacuum heating and drying chamber; A plurality of material shaking mechanisms are evenly arranged in the vacuum heating and drying chamber, and are used to shake and scatter the materials to be dried. A plurality of light heating lamp boards are fixedly installed in the vacuum heating and drying chamber. The plurality of light heating lamp boards are divided into a plurality of groups, and are staggeredly arranged above the plurality of material shaking mechanisms, and are used to heat and dry the materials. The material shaking mechanism includes an isolation plate, a vibrating discharge plate, a plurality of reset buffer rods and a reciprocating drive mechanism, wherein the isolation plate is fixedly installed in the vacuum heating drying chamber and is located below the corresponding light heating lamp plate, the vibrating discharge plate is slidably arranged in the vacuum heating drying chamber and is located between the corresponding isolation plate and the light heating lamp plate, a plurality of reset buffer rods are connected between the isolation plate and the vibrating discharge plate, and the reciprocating drive mechanism is arranged on the isolation plate, and is used to push the vibrating discharge plate to slide reciprocatingly up and down to vibrate the material; A grinding chamber is provided on the preparation box, and the grinding chamber is located between the vacuum heating and drying chamber and the electrical chamber. Multiple discharge ports are provided on the corresponding sides of the vacuum heating and drying chamber, and the multiple discharge ports are respectively arranged corresponding to the multiple vibration discharge plates, and the bottom inner walls of the multiple discharge ports are inclined downward. Multiple discharge port closing plates are detachably installed on the corresponding sides of the preparation box to close the multiple discharge ports respectively. Multiple receiving hoppers are fixedly installed on the corresponding sides of the preparation box, and the multiple receiving hoppers are respectively located below the multiple discharge ports and the discharge port closing plates for receiving the discharged materials. The bottoms of the multiple receiving hoppers are fixedly installed with material guide pipes, and the multiple receiving hoppers and the material guide pipes are arranged in sequence from top to bottom, and the material guide pipes located at the bottom on both sides are respectively connected with the two sides of the grinding chamber for introducing materials into the grinding chamber; A plurality of push screws are rotatably installed in the vacuum heating and drying chamber, and the plurality of push screws are respectively located above the plurality of vibrating discharge plates and the corresponding two discharge port closing plates, and both ends of the plurality of push screws extend outside the preparation box, and a transverse plate is threadedly sleeved on the plurality of push screws, and an adaptive sleeve plate is slidably sleeved on the bottom of the plurality of transverse plates for telescopic adaptation to the vibration displacement of the vibrating discharge plate, and the bottoms of the plurality of adaptive sleeve plates are respectively in contact with the tops of the plurality of vibrating discharge plates, and both sides are in sliding contact with the inner wall of the vacuum heating and drying chamber, and two reset springs are respectively provided in the plurality of adaptive sleeve plates, and the top ends of the two reset springs are in conflict with the bottom of the transverse plate for adapting to the telescopic adaptation of the transverse plate and the adaptive sleeve plate; A strip plate is fixedly installed on one side of the preparation box, and a plurality of discharge avoidance shafts are rotatably installed on the strip plate. A plurality of middle-section shafts are rotatably installed on one side of the preparation box located at the discharge avoidance shaft. The discharge avoidance shaft, the middle-section shaft and the pushing screw are set in equal numbers and are arranged one by one. The plurality of pushing screws are respectively connected to the corresponding middle-section shafts by the same sprocket transmission component one, and the plurality of middle-section shafts are respectively connected to the corresponding discharge avoidance shafts by the same sprocket transmission component two. A transmission spindle is rotatably mounted on the strip plate, the transmission spindle passes through the strip plate, a second drive motor is arranged in the electrical cavity, the output shaft of the second drive motor rotates and extends outside the preparation box, the output shaft of the second drive motor is connected to the transmission spindle by a sprocket transmission assembly three, and the transmission spindle is connected to a corresponding discharge avoidance shaft by a sprocket transmission assembly four; A grinding mortar is fixedly mounted on the top inner wall of the electrical chamber, the grinding mortar is in communication with the grinding chamber, a powder discharge pipe is connected to the bottom of the grinding mortar, the powder discharge end of the powder discharge pipe extends to the outside of the preparation box, the bottom of the grinding chamber and the grinding mortar form a grinding groove, a grinding shaft is rotatably mounted on the top inner wall of the grinding chamber, a grinding head is fixedly mounted on the bottom end of the grinding shaft, the grinding head extends into the grinding groove, an extension shaft 2 is rotatably mounted on the inner wall of one side of the grinding chamber, a bevel gear 2 is fixedly sleeved on the extension shaft 2 and the grinding shaft, and the two bevel gears 2 are meshed with each other; A push shaft 2 is rotatably installed in the grinding chamber, and the same end of the two push shafts 2 and the extension shaft 2 is connected for transmission by the same sprocket transmission assembly 5. The strip plate is located on one side of the sprocket transmission assembly 5 and is rotatably installed with a reversing shaft. Both ends of the reversing shaft and the corresponding transmission main shaft and push shaft 2 are fixedly installed with bevel gears 3, and the four bevel gears 3 are meshed with each other in pairs.

2. The energy-saving mango instant powder preparation device according to claim 1, characterized in that: The reset buffer rod includes a U-shaped bracket, an I-shaped guide rod, a reset spring and a shock-absorbing pad. The U-shaped bracket is fixedly installed on the top of the isolation plate, the I-shaped guide rod is slidably installed on the U-shaped bracket, the top of the I-shaped guide rod is fixedly connected to the bottom of the vibrating discharge plate, the reset spring is slidably sleeved on the I-shaped guide rod, the top of the reset spring is in conflict with the top inner wall of the U-shaped bracket, and the bottom end is in conflict with the bottom expanded part of the I-shaped guide rod. The shock-absorbing pad is fixedly installed on the bottom end of the I-shaped guide rod, and the shock-absorbing pad can conflict with the isolation plate.

3. The energy-saving mango instant powder preparation device according to claim 1, characterized in that: The reciprocating drive mechanism includes a wear-resistant pad, a bearing seat, a push shaft and a cam. The wear-resistant pad is fixedly mounted on the bottom of the vibrating discharge plate, the bearing seat is fixedly mounted on the top of the isolation plate, the push shaft is rotatably mounted on the bearing seat, and the cam is fixedly sleeved on the push shaft. The outer edge of the cam is in contact with the bottom of the wear-resistant pad, and is used to push the wear-resistant pad and the vibrating discharge plate during rotation.

4. The energy-saving mango instant powder preparation device according to claim 3, characterized in that: An extension shaft 1 is rotatably mounted on the inner wall of one side of the vacuum heating drying chamber, and a bevel gear 1 is fixedly mounted on one end of the extension shaft 1 corresponding to the push shaft 1, the two bevel gears 1 are meshed, and the other end of the extension shaft 1 extends outside the preparation box.

5. The energy-saving mango instant powder preparation device according to claim 4, characterized in that: A driving motor is fixedly installed in the electrical cavity, and the output shaft of the driving motor rotates and extends outside the preparation box. The output shaft of the driving motor and multiple extension shafts are fixedly installed with pulleys on one end outside the preparation box, and the same synchronous belt is mounted on the multiple pulleys.

6. The energy-saving mango instant powder preparation device according to claim 5, characterized in that: The preparation box is located at one side of the belt pulley and is rotatably mounted with a belt tensioning wheel and a belt guide roller, and the synchronous belt passes around the belt tensioning wheel and the belt guide roller.

7. The energy-saving mango instant powder preparation device according to claim 5, characterized in that: The other side of the vacuum heating drying chamber corresponding to the synchronous belt is an operating surface and is hinged with a door. An electric control box and a data table are arranged on the outside of the door, and a vacuum monitor, a temperature monitor and a moisture content monitor compatible with the electric control box and the data table are arranged on the inside of the door.

8. The energy-saving mango instant powder preparation device according to claim 7, characterized in that: The box door is provided with a pressure relief pipe, which is communicated with the vacuum heating drying chamber and is provided with a valve.

9. A method for preparing mango instant powder according to the energy-saving mango instant powder preparation device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: When preparing the mango instant powder of the present invention, first, mango puree is sequentially concentrated, frozen, dried and crushed to obtain mango instant powder, and the mango puree is concentrated before freeze-drying, and the present device is used during drying. When in use, the concentrated and frozen mango puree is made into small pieces or slices and put into the vibrating discharge plates of multiple shaking material mechanisms, and the pieces are evenly laid. When putting in, the box door is opened, and the mango puree is put in through the operating surface. After the putting in is completed, the box door is closed to ensure that the valve of the pressure relief pipe is closed to avoid air leakage; Step 2: Use the electric control box to start the vacuum pump in the electrical cavity. The vacuum pump extracts the air in the vacuum heating and drying cavity. The air passes through the vacuum pipe and the suction pipe, and then is converted by the vacuum pump and discharged from the exhaust pipe. At this time, the vacuum monitor monitors the real-time situation of vacuuming and displays it on the data table; Step 3: When the vacuum reaches the preset value, turn on the light heating lamp board to irradiate and heat the material laid on the vibrating discharge plate, heating it to 40-60°C. At this time, start the driving motor 1, and the output shaft of the driving motor 1 rotates. The pulley and the synchronous belt are used to drive the outer shaft 1 of multiple shaking mechanisms to rotate synchronously. When the outer shaft 1 rotates, two meshing bevel gears 1 drive the corresponding push shaft 1 to rotate, and the push shaft 1 drives the cam 1 to rotate synchronously. When the cam 1 rotates, the push wear-resistant pad and the vibrating discharge plate reciprocate up and down. When the vibrating discharge plate is displaced, it drives the I-shaped guide rod to slide along the U-shaped bracket and compress or release the reset spring 1, and the shock-absorbing pad is used for buffering. The vibrating discharge plate is used to reciprocate up and down at a fast pace to vibrate the upper material, which can effectively ensure the uniformity of heating. In this process, the vacuuming speed is controlled and the heating temperature is maintained. The moisture in the material is directly sublimated from solid ice to gaseous water vapor at low temperature and is pumped away by the vacuum pump until the moisture content in the mango puree drops to ≤7%. At this time, the drying process is completed.

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