Spice extraction residue drying and processing equipment

Abstract

The invention relates to the technical field of spice treatment, in particular to spice extraction residue drying and treatment equipment which comprises a machine body, a vacuum chamber is arranged on the machine body, a placing frame is arranged in the vacuum chamber and comprises a base, and bearing parts are symmetrically arranged above the base; bearing pieces distributed in an array mode are arranged between the two bearing parts, each bearing piece comprises a frame body used for bearing a tray, and a middle rod is arranged on each frame body; a circulating piece is arranged in the bearing part and is connected with the middle rod; when the circulating part operates, the bearing part is driven to circulate up and down along an annular groove formed in the bearing part. The circulating part is arranged to drive the bearing part to circulate up and down, so that the trays located at different positions of the vacuum chamber are subjected to position conversion, it is ensured that materials on the trays can make uniform contact with a cold source or a heat source, and it is effectively avoided that due to different heights or position differences of the trays, the materials cannot be damaged. And the regular change difference of the materials in the freezing and drying processes is caused.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spice processing, and particularly relates to a spice extraction residue drying and processing equipment. BACKGROUND

[0002] In the field of spice processing, after solvent extraction or steam distillation of natural spice plants to obtain essential oils, extracts and other products, a large amount of solid residue is usually generated. Although the main aroma components have been extracted, these residues often still contain a certain amount of non-volatile aroma precursor substances, polysaccharides, organic acids and trace amounts of residual fat-soluble components. If they are directly discarded as waste, not only will it cause waste of resources, but also may bring environmental pressure. Therefore, how to efficiently and environmentally realize the resource utilization of these extraction residues has become a topic worthy of attention in this field.

[0003] Freeze-drying technology, as an efficient dehydration method, its principle is to freeze the wet material at low temperature, and then make the ice crystals in the material sublimate into water vapor in a vacuum environment, so as to remove water. Because the whole process is in a low-temperature and oxygen-deficient state, this method is widely used in the drying of heat-sensitive materials, which can maximize the preservation of the original components, biological activity and volatile aroma substances of the material. The application of freeze-drying technology in the processing of spice extraction residues aims to obtain dry, loose and porous powder, which is convenient for subsequent storage, transportation or further processing and utilization, such as adsorption carrier, feed additive or supercritical fluid extraction to obtain residual active ingredients A Chinese patent with application number CN202311732771.5 discloses a food freeze-drying machine and its application, which relates to the field of food freeze-drying manufacturing, and comprises a reaction cavity horizontally placed on a horizontal plane, a hanging beam slidingly connected to the inner side wall of the reaction cavity, placement trays vertically and arrayed below the hanging beam, with the upper placement trays fixedly connected to the hanging beam, a sliding rod fixedly connected to the bottom wall of the uppermost placement tray, an adjusting mechanism arranged at the middle position of the placement trays for adjusting the movement of the lower placement trays, and a cold trap fixedly connected to the inner side wall of the reaction cavity for freeze-drying operation inside the cavity. This device not only can adjust the relative distance between the tray racks, but also reduces the working intensity of the workers during feeding and discharging.

[0004] Although the related patent technology can optimize the freeze-drying effect by adjusting the relative distance between the tray racks, there are still some technical problems to be solved in actual application. Specifically, the spice residues at different heights on the tray rack will show regular differences in the freezing and drying process. This difference is mainly due to the unevenness of heat transfer and mass transfer inside the drying chamber.

[0005] During the pre-freezing stage, cold energy is transferred from the bottom to the top of the tray rack. Due to the gradual decrease in heat conduction efficiency with the increase in transfer distance, the flavor residues on the lower trays (close to the cold source) tend to freeze first, while the upper trays may have a longer freezing time due to the longer cold energy transfer path. This difference in freezing time can cause the material in the bottom trays to form large ice crystal structures that facilitate water sublimation, while the material in the top trays forms small ice crystal structures that hinder water escape.

[0006] After entering the sublimation drying stage, the process relies on the synergistic effect of heat transfer and water vapor escape. For the lower trays, heat input is sufficient as they are directly in contact with the heat source, but water vapor must pass through the upper trays to be captured by the cold trap, resulting in greater mass transfer resistance, which can cause local temperature to be too high, thereby risking product collapse. For the upper trays, heat transfer must pass through the lower trays, so heat input may be insufficient, but water vapor escape path is shorter, mass transfer efficiency is higher, so drying rate may be faster. This difference easily leads to asynchronous drying process, that is, when the bottom material is close to the drying end point, the top material may still contain more moisture.

[0007] If the material itself has a high moisture content, or is rich in ingredients such as sugars and gums, during the freezing process, these water and sticky substances will form a close contact with the tray surface. When water condenses into ice, it will have a strong physical binding force with the tray surface, causing the material to adhere to the tray. In the subsequent sublimation drying process, the water vapor produced by sublimation at the bottom will be trapped inside the material and cannot be easily discharged, resulting in incomplete drying and affecting the subsequent secondary extraction effect of the residues. SUMMARY

[0008] The purpose of the present application is to provide a flavor extraction residue drying and processing equipment, which aims to solve the problems raised in the background art.

[0009] To achieve the above-mentioned purpose, the present application provides the following technical solutions: The present application provides a flavor extraction residue drying and processing equipment, comprising a machine body, wherein a vacuum chamber is provided on the machine body, and further comprising: A placing rack is located inside the vacuum chamber, which comprises a base, and symmetrical receiving portions are provided above the base; A supporting member is arrayed between the two receiving portions, which comprises a frame for receiving a tray, and a middle rod is provided on the frame; A circulating member is located inside the receiving portion and connected with the middle rod; when the circulating member operates, it drives the supporting member to circulate up and down along the ring groove provided on the receiving portion, so as to convert the position of the tray located at the top and bottom of the vacuum chamber.

[0010] Preferably, the circulating member comprises: The sliding rail is located in the inner part of the receiving part and corresponds to the annular groove; The transmission chain is located in the inner circle of the sliding rail and is provided with a plurality of movable elements arranged in an array between the sliding rail and the transmission chain, the movable elements being connected with the intermediate rod; The transmission assembly is used for driving the transmission chain to move in the inner circle of the sliding rail, and the transmission assemblies located in the two receiving parts are connected through the transmission rod.

[0011] Preferably, the movable element comprises a circulating plate connected with the sliding rail through a pulley, and the circulating plate is connected with the transmission chain through a connecting element. When the transmission assembly operates, the transmission chain drives the circulating plate to move through the connecting element, and the moving track of the circulating plate coincides with the shape of the sliding rail under the influence of the pulley and the sliding rail.

[0012] Preferably, the circulating plate is provided with a docking element, and the docking element is connected with the intermediate rod at one end penetrating out of the annular groove.

[0013] Preferably, the inner part of the docking element is provided with a locking element, and the docking element is fixedly connected with the intermediate rod through the locking element when the circulating plate moves in the vertical part of the sliding rail, and the docking element is rotatably connected with the intermediate rod when the circulating plate moves in the arc-shaped part of the sliding rail.

[0014] Preferably, the inner part of the tray is provided with a lifting element, and the lifting element is used for lifting the material to separate the material from the bottom of the tray. The upper part of the lifting element is provided with a moving element, and the moving element is used for fixing and crushing the material through cooperation with the lifting element.

[0015] Preferably, the lifting element comprises a plurality of positioning cylinders arranged in an array on the bottom of the tray, the inner part of the positioning cylinder is provided with an extension part, the end of the extension part is provided with a first magnetic element, and the first magnetic element is connected with a bottom net arranged on the inner bottom of the tray.

[0016] Preferably, the moving element comprises a plurality of limiting parts arranged in an array in the inner part of the tray, the limiting part is slidably connected with a top net, the upper surface of the top net is provided with a second magnetic element, and the second magnetic element is provided with an elastic part between the limiting part.

[0017] Preferably, the lower surface of the top net is provided with a prismatic sheet.

[0018] Preferably, the inner bottom of the frame body is provided with a positioning groove corresponding to the positioning cylinder, and the bottom of the frame body is provided with an electromagnetic element corresponding to the first magnetic element and the second magnetic element.

[0019] The technical effects and advantages of the present application are as follows: 1. The present application sets up a circulating part to drive the supporting part to circulate up and down, so that the trays located at different positions of the vacuum chamber are converted in position, ensuring that the materials on the trays can be uniformly contacted with the cold source or heat source, effectively avoiding the regular variation difference of the materials in the freezing and drying process caused by the different heights or positions of the trays, improving the uniformity and consistency of the material processing, providing good conditions for the subsequent extraction link, avoiding irregular supercritical fluid penetration path, and ensuring uniform extraction.

[0020] 2. The present application sets up lifting parts and moving parts. In the pre-freezing stage, the vibration wave generated by the reciprocating motion of the bottom net destroys the close contact between the materials and the surface of the tray, reduces the adhesion, improves the thermal contact, promotes the internal heat transfer, and makes the freezing process more synchronous and uniform. When the materials freeze out of sync, the top net moves down and collides with the bottom net, which can break large size residues and avoid incomplete pre-freezing. In the sublimation drying stage, by controlling the size and direction of the current flowing through the electromagnetic part, the positions of the bottom net and the top net are adjusted, thereby solving the problem of out-of-sync drying of the materials, improving the drying rate, and maximizing the integrity of the materials to provide high-quality material basis for subsequent processing and application. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the main schematic diagram of the vacuum freeze-drying system of the present application. Figure 2 It is the structural schematic diagram of the placing frame of the present application. Figure 3 It is the structural schematic diagram of the circulating part of the present application. Figure 4 It is the structural schematic diagram of the moving part of the present application. Figure 5 It is the structural schematic diagram of the supporting part and the tray of the present application. Figure 6 It is the structural schematic diagram of the moving part of the present application. Figure 7 It is the structural schematic diagram of the lifting part of the present application. Figure 8 It is the bottom surface structural schematic diagram of the moving part of the present application. Figure 9 It is the cross-sectional structural schematic diagram of the tray of the present application. Figure 10 It is the area distribution schematic diagram of the frame body of the present application.

[0022] In the figure: 1, machine body; 2, vacuum chamber; 3, placing frame; 301, base; 302, receiving part; 4, circulating piece; 401, sliding rail; 402, transmission chain; 403, movable piece; 4031, circulating plate; 4032, pulley; 4033, butt joint; 404, transmission assembly; 405, transmission rod; 5, supporting piece; 501, frame; 502, intermediate rod; 503, positioning groove; 6, locking piece; 7, tray; 8, lifting piece; 801, positioning cylinder; 802, telescopic part; 803, first magnetic piece; 804, bottom net; 9, moving piece; 901, limiting part; 902, elastic part; 903, second magnetic piece; 904, top net; 905, fin; 10, cold trap; 11, vacuum pump; 12, refrigeration part; 13, circulating fan. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Embodiment one In the field of spice processing technology, after solvent extraction or steam distillation of spice plants to obtain essential oils, extractives and other products, a large amount of solid residue is usually generated. These residues often still contain a certain amount of non-volatile aroma precursor substances, polysaccharides, organic acids and residual trace amounts of fat-soluble components. At this time, the residues need to be dried and then extracted by supercritical carbon dioxide extraction and the like. In this case, if traditional heating drying is used, the material will cause the volatilization of aroma substances due to high temperature, thereby affecting the subsequent extraction quality. In view of this, the present application provides a spice extraction residue drying and processing equipment to retain the aroma components and biological activity of spices, and to create favorable conditions for subsequent deep processing.

[0025] Referring to Figures 1 to 3 As shown in the figure, the present application provides a spice extraction residue drying and processing equipment, which comprises a machine body 1, a vacuum chamber 2 is arranged on the machine body 1, a placing rack 3 is arranged inside the vacuum chamber 2, the placing rack 3 comprises a base 301, and a supporting part 302 is symmetrically arranged above the base 301; an array of supporting pieces 5 is arranged between the two supporting parts 302, the supporting piece 5 comprises a frame 501 for supporting a tray 7, and an intermediate rod 502 is arranged on the frame 501.

[0026] The outer side of the vacuum chamber 2 is provided with a cold trap 10, and the outer side of the cold trap 10 is connected with a vacuum pump 11 through a communication pipe, and a primary on-off valve is arranged on the communication pipe.

[0027] The bottom of the vacuum chamber 2 is provided with a refrigeration part 12, which is used for pre-freezing treatment of the material in the vacuum chamber 2. The refrigeration part 12 comprises a refrigeration compressor.

[0028] The top of the vacuum pump 11 is further provided with a circulating air duct, and a circulating fan 13 is arranged on the circulating air duct. The circulating air duct is in communication with the cold trap 10, and a secondary on-off valve is arranged at the position in communication with the cold trap 10.

[0029] It should be noted that: in the initial state, the primary on-off valve and the secondary on-off valve are both in the closed state, that is, the circulating air duct and the cold trap 10 are in the non-communication state, and the cold trap 10 and the vacuum pump 11 are in the non-communication state.

[0030] When the vacuum chamber 2 is in the pre-freezing stage, the cold air circulates in the vacuum chamber 2; when the vacuum chamber 2 is in the vacuumizing stage, the primary on-off valve and the secondary on-off valve are both in the starting state, at this time, the circulating air duct and the cold trap 10 are in the communication state, and the cold trap 10 and the vacuum pump 11 are in the communication state. The vacuum pump 11 can vacuumize the vacuum chamber 2.

[0031] When the vacuum chamber 2 is in the sublimation stage, the secondary on-off valve is in the starting state, and the state of the primary on-off valve can be set according to the actual situation. The water vapor after the sublimation of the material will be captured by the cold trap 10 (water catcher) under the influence of pressure difference. The condensing coil inside the cold trap 10 is cooled continuously, so that the water vapor is condensed into condensed water again. The condensed water can be discharged through the drain pipe arranged at the bottom of the cold trap 10, so as to realize the effective removal of water from the material.

[0032] The freeze-drying device realizes its function based on the basic physical process of ice crystal sublimation. Its working principle is to promote the phase change of the water in the material, that is, to directly convert the solid ice into gaseous water vapor, so as to dry the material. The core structure of the device is composed of multiple key components, specifically including a vacuum chamber 2, a cold trap 10, a supporting member 5, a refrigeration part 12, and a vacuum pump 11. Among them, the vacuum chamber 2 is the main space for placing the material, used for accommodating the supporting member 5 loaded with the material; the cold trap 10 is internally provided with a condensing coil, which mainly captures the water vapor generated in the sublimation process of the material.

[0033] In actual work process, first need to be dried material evenly into the tray 7, then put the tray 7 with material placed in the vacuum chamber 2 in the support 5. At this time, start refrigeration 12, refrigeration compressor through the preset pipe to the circulating fan 13 to send refrigerant, circulating fan 13 under the action of cold wind through the drying chamber inlet into the box, with the material to make full contact, so that the material in a short time freeze to solid state.

[0034] After the material is completely frozen, start the vacuum pump 11 to vacuum the vacuum chamber 2. The vacuum pump 11 through its strong suction capacity, the air in the vacuum chamber 2 is gradually extracted, in order to maintain the vacuum chamber 2 in a high vacuum environment. At the same time, the heating system in the vacuum chamber 2 starts to work, providing gentle and stable heat for the material. In the whole drying process, the temperature provided by the heating system is usually not more than 40 DEG C, to ensure that the material will not change due to high temperature.

[0035] In the low vacuum environment and the heating system provided by the heat of the joint action, the solid ice in the material will skip the liquid phase, directly sublimate phenomenon, into gaseous water vapor. These sublimated water vapor will be captured by the cold trap 10 (water trap), the condenser coil inside the cold trap 10 through the continuous refrigeration, water vapor condensation into condensate or frost again, so as to realize the effective removal of water from the material.

[0036] In order to ensure the accuracy and stability of the whole freeze drying process, the device is equipped with a controller. The controller can accurately control the temperature, vacuum degree and time of the drying process. Specifically, by setting temperature monitor in the drying chamber and condensing chamber, real-time collection and feedback of temperature data to the controller. According to these real-time data, the controller dynamically adjusts the working state of the refrigeration part 12, heating system and vacuum pump 11, to ensure that the drying process is always in the best condition.

[0037] When the drying process is completed, the system will automatically restore to normal pressure. At this time, the operator can take out the tray 7 from the vacuum chamber 2, and make the dried material and the tray 7 separate. Through this freeze drying method, the integrity of the material can be guaranteed to the greatest extent, and its porous structure is reserved, providing high quality material basis for subsequent processing and application.

[0038] Example two Although the above-mentioned embodiments can retain the aroma components and biological activity of the spices by freeze-drying, there are still several technical problems to be solved in practical application. Specifically, the residues of spices at different heights on the shelf 3 will show regular differences in freezing and drying due to the unevenness of heat and mass transfer inside the vacuum chamber 2, i.e. the freezing / drying speed of the upper material is slower than that of the lower material. Such differences will cause obvious differences in the drying effect of the materials on the trays 7 at different heights, and even damage the cell structure of the spices, resulting in irregular supercritical fluid penetration path in the subsequent extraction step, causing uneven extraction. In view of this, technical improvements are made on the basis of Embodiment 1, and the improved technical solution is as follows.

[0039] Referring to Figures 1 to 5 The present application provides a spice extraction residue drying and processing equipment, which comprises a circulating member 4 located inside the receiving part 302 and connected with the intermediate rod 502; when the circulating member 4 operates, it drives the supporting member 5 to circulate up and down along the ring groove formed on the receiving part 302, so as to realize the position conversion of the trays 7 located at the top and bottom of the vacuum chamber 2.

[0040] Referring to Figures 3 to 4 The circulating member 4 comprises a slide rail 401 located inside the receiving part 302, and the position of the slide rail 401 corresponds to the ring groove; the inner circle of the slide rail 401 is provided with a transmission chain 402, which is driven by a transmission assembly 404, and the transmission assemblies 404 located in the two receiving parts 302 are connected by a transmission rod 405.

[0041] The transmission assembly 404 comprises drive wheels symmetrically arranged in the inner circle of the slide rail 401, which are connected with the transmission chain 402, and one of the drive wheels is connected with a triangular transmission device, and the triangular transmission devices located on the two receiving parts 302 are connected by the transmission rod 405. The triangular transmission device is driven by a motor. The motor drives the transmission chain 402 located on the two receiving parts 302 to move synchronously through the triangular transmission device and the transmission rod 405, and the transmission chain 402 drives the circulating plate 4031 to move along the slide rail 401. The transmission assembly 404 belongs to the prior art, and will not be described in detail here.

[0042] Referring to Figures 3 to 4As shown, the transmission chain 402 and the slide rail 401 are provided with an array of movable members 403, the movable members 403 being connected with the intermediate rod 502; the movable members 403 include a circulating plate 4031, the circulating plate 4031 being connected with the slide rail 401 through a pulley 4032, and the circulating plate 4031 being connected with the transmission chain 402 through a connecting member. When the transmission assembly 404 operates, the transmission chain 402 drives the circulating plate 4031 to move through the connecting member, and the moving track of the circulating plate 4031 coincides with the shape of the slide rail 401 under the restriction of the pulley 4032 and the slide rail 401.

[0043] With reference to Figures 3 to 4 As shown, the circulating plate 4031 is provided with a butt joint member 4033, the butt joint member 4033 being connected with the intermediate rod 502 at one end penetrating out of the annular groove. The butt joint member 4033 is rotationally connected with the intermediate rod 502.

[0044] In the initial state, the transmission assembly 404 is in a static state. At this time, the supporting member 5 located between the two receiving portions 302 presents a symmetrical distribution state, and the specific structural relationship can be referred to Figure 2 and Figure 3 As shown.

[0045] When the equipment is put into use, the operator needs to place the tray 7 loaded with materials stably on the supporting member 5, and ensure that the materials are uniformly distributed and the tray 7 is fixed reliably. Then, the placing frame 3 is pushed into the vacuum chamber 2 as a whole, so that it is in a preset working position. In the vacuum chamber 2, the refrigeration part 12 starts to work and performs pre-freezing treatment on the materials, so that the materials reach a predetermined frozen state by accurately controlling the temperature parameters. At the same time, the heating system starts to work to perform sublimation drying operation on the materials, and the effective removal of water in the materials is realized by adjusting the heating power and the temperature gradient.

[0046] In the pre-freezing stage and sublimation drying stage of the material, the driving device is started and drives the transmission assembly 404 to operate. The transmission assembly 404 drives the transmission chain 402 to move in a cycle through a mechanical connection. In the operation process, the transmission chain 402 synchronously drives the circulating plate 4031 to move in a translation. Since the circulating plate 4031 is provided with a pulley 4032, and the pulley 4032 cooperates with the preset slide rail 401, the moving track of the circulating plate 4031 strictly follows the shape of the slide rail 401. This design enables the circulating plate 4031 to drive the supporting piece 5 to move in a cycle along the slide rail 401 during the movement. Specifically, in the movement process of the circulating plate 4031, the supporting piece 5 originally located at the lower side moves to the upper side with the rising of the circulating plate 4031; the supporting piece 5 originally located at the inner side moves to the outer side with the translation of the circulating plate 4031. This cycle movement mechanism ensures that the material on the tray 7 can be uniformly contacted with the cold source or the heat source, thereby effectively avoiding the regular variation difference of the material in the freezing and drying process caused by the different heights or positions of the tray 7, and improving the uniformity and consistency of the material processing.

[0047] Embodiment three Although the above embodiment can solve the regular variation difference of the material in the freezing and drying process caused by the different heights or positions of the tray 7 to a certain extent, in actual process, if the material itself has a high water content, or is rich in sugar, gum and other components, in the freezing process, these water and sticky substances will form a close contact with the surface of the tray 7. When the water condenses into ice, a strong physical bonding force will be generated between the ice and the surface of the tray 7, causing the material to adhere to the tray 7. Then in the subsequent sublimation drying process, the water vapor generated by the bottom sublimation will be trapped inside the material and cannot be smoothly discharged, causing incomplete drying, thereby affecting the subsequent secondary extraction effect of the residue. In view of this, technical improvement is made on the basis of embodiment one, and the improved technical scheme is shown as follows.

[0048] Referring to Figures 1 to 10 As shown in the figure, the present application provides a kind of spice extraction residue drying and processing equipment, the inside of tray 7 is equipped with lifting piece 8, lifting piece 8 is used to lift material, to make material separate from the contact with the bottom of tray 7;The upper of lifting piece 8 is equipped with moving piece 9, moving piece 9 realizes the fixation and crushing of material by cooperating with lifting piece 8.

[0049] Referring to Figure 7 As shown in the figure, lifting piece 8 includes positioning cylinder 801 arranged in array in the bottom of tray 7, the inside of positioning cylinder 801 is equipped with telescopic part 802, telescopic part 802 includes spring, the end of telescopic part 802 is equipped with first magnetic piece 803, and first magnetic piece 803 is connected with bottom net 804 arranged in the bottom of tray 7.

[0050] The bottom net 804 comprises a lifting net sheet, and a high-mesh net film (the mesh number can be selected between 100-400 meshes) is arranged on the lifting net sheet. When the spice residues are in block shape, the mesh number of the net film is 100 meshes; when the spice residues are in broken powder shape, the mesh number of the net film is 300 meshes; and when the spice residues are in mixed shape of block and powder, the mesh number of the net film is 200 or 300 meshes. By controlling the mesh number of the net film, the phenomenon of material leakage can be avoided when the lifting piece 8 lifts the material.

[0051] Referring to Figure 8 The moving piece 9 comprises a limiting part 901 arranged in the tray 7 in an array, and a top net 904 is slidably connected to the limiting part 901. The upper surface of the top net 904 is provided with a second magnetic part 903, and the second magnetic part 903 and the limiting part 901 are provided with an elastic part 902. The lower surface of the top net 904 is provided with a ridge 905.

[0052] The limiting part 901 comprises a first mounting block fixedly connected to the tray 7, and a second mounting block threadedly connected to the first mounting block. The second mounting block is connected to the top net 904 through the elastic part 902. When the spice residues are placed in the tray 7, the first mounting block and the second mounting block are separated to remove the top net 904.

[0053] The top net 904 comprises a net film, and the mesh number of the net film is the same as that of the bottom net 804. The ridge 905 provided on the lower surface of the top net 904 is equivalent to a mounting rack. The net film is laid on the mounting rack, the second magnetic part 903 is fixedly connected to the ridge 905, and the side of the ridge 905 away from the top net 904 is wedge-shaped.

[0054] Referring to Figure 5 The inner bottom of the frame body 501 is provided with a positioning groove 503 corresponding to the positioning cylinder 801, and the bottom of the frame body 501 is provided with an electromagnetic part corresponding to the first magnetic part 803 and the second magnetic part 903.

[0055] Referring to Figure 10 The bottom of the frame body 501 is divided into three regions S1, S2 and S3. The regions S1 and S3 are provided with the electromagnetic part corresponding to the first magnetic part 803, and the region S2 is provided with the electromagnetic part corresponding to the second magnetic part 903.

[0056] An infrared imager is arranged in the vacuum chamber 2, and the main function of the infrared imager is to accurately detect the temperature distribution state of the tray 7 at different stages. In the initial state, the bottom net 804 is attached to the inner bottom of the tray 7, and the top net 904 is located above the material.

[0057] In the process of specific application, especially in the pre-freezing stage, the control system preset in the controller will be started. The control system implements intermittent positive current operation to the electromagnetic elements arranged in the S1 area and the S3 area at the bottom of the supporting member 5. When the positive current passes through the electromagnetic elements, the electromagnetic elements will generate a repulsive force to the first magnetic element 803, which pushes the first magnetic element 803 and further drives the bottom net 804 to move upward. When the current passing through the electromagnetic elements is cut off, the bottom net 804 will move to the inner bottom of the tray 7 under the elastic restoring force of the stretchable part 802, and finally collide with the inner bottom of the tray 7.

[0058] The collision between the bottom net 804 and the inner bottom of the tray 7 will generate a vibration wave, which is transmitted to the materials placed on the tray 7 through the tray 7. For materials with high water content or materials rich in sugar, gum and other components, this vibration effect can effectively destroy the close contact state between the water and sticky substances formed in the freezing process and the surface of the tray 7. Specifically, the vibration promotes the relative displacement of the water and sticky substances inside the materials, reducing the adhesion between them and the surface of the tray 7. At the same time, the vibration can make the materials on the tray 7 produce micro-motion, which helps to break the boundary air layer trapped on the surface and inside the materials, thereby improving the thermal contact between the materials and the cooling plate. More importantly, the vibration energy can be transmitted to the inside of the materials, promoting the transfer of internal heat, reducing the temperature gradient inside the materials and between different trays 7, and thus making the freezing process more synchronized and uniform.

[0059] In this embodiment, the frame 501 and the tray 7 can be fixedly connected through a clamping member to ensure the stability of the structure. In the pre-freezing stage, the supporting member 5 is always moved up and down in the area between the two receiving parts 302 under the drive of the circulating member 4. When the supporting member 5 moves to the top of the receiving part 302, the infrared imager arranged at the top of the vacuum chamber 2 will scan the materials in the tray 7 and generate a visual temperature field image. According to these temperature field images, the controller arranged outside can intuitively compare the freezing rates and final temperatures between different trays 7 and between different areas of the same tray 7. Ideally, the cooling rate on the tray 7 should be in a balanced state, i.e. synchronized cooling and finally reaching below the preset eutectic point temperature.

[0060] However, when the infrared image shows that the temperature of a certain tray 7 or a certain area exceeds the average temperature of all materials in the trays 7, it indicates that the shape of the materials in the tray 7 has size characteristics. In the freezing stage, different sizes of materials freeze at different speeds, with small particles freezing first and large particles freezing later. This asynchronous freezing phenomenon may cause part of the materials not to be completely frozen, i.e. incomplete pre-freezing, resulting in shrinkage phenomenon during the initial treatment of the materials in the sublimation drying stage, and further causing uneven contact between the fluid and the materials in the subsequent supercritical extraction.

[0061] When the control system detects that the material in a certain tray 7 is not frozen synchronously in the freezing stage, the control system will locate the position of the tray 7 according to the transmission data of the infrared image, and control the reverse current to be input into the electromagnetic element at the bottom S2 area of the corresponding supporting piece 5 of the tray 7. This operation will make the electromagnetic element generate an attractive force that attracts the second magnetic element 903, and then drive the second magnetic element 903 to move the top net 904 downward along the limiting part 901. By controlling the size of the reverse current input into the electromagnetic element at the S2 area, the downward movement distance of the top net 904 can be accurately controlled. Thus, in the subsequent freezing process, when the bottom net 804 moves upward with the material, the material on the bottom net 804 will collide with the ribs 905 on the lower surface of the top net 904, and the ribs 905 will break the large-size residues in the material on the bottom net 804, avoiding the phenomenon that part of the material is not completely frozen due to the different sizes of the spice residues in the same tray 7.

[0062] Although the collision between the material on the bottom net 804 and the ribs 905 on the lower surface of the top net 904 may cause some material to adhere to the bottom net 804 or the ribs 905, since the bottom net 804 is always in a reciprocating motion state in the pre-cooling stage, when the bottom net 804 is impacted by the extension member and collides with the tray 7, both the tray 7 and the bottom net 804 will vibrate, so that the material adhered to the bottom net 804 or the ribs 905 falls off.

[0063] In the sublimation drying stage, the control system will stop inputting the forward current into the electromagnetic element corresponding to the first magnetic element 803, that is, the lower surface of the bottom net 804 is in a state of being attached to the bottom of the tray 7 in the sublimation drying stage. With the tray 7 moving up and down in the area between the two supporting parts 302, when the tray 7 moves to the top of the supporting part 302, the infrared imager arranged at the top of the vacuum chamber 2 will scan the material in the tray 7 and generate a visible temperature field image. Specifically, the sublimation of ice crystals will absorb heat, causing the temperature of the material surface to change. Infrared thermal imaging can infer the uniformity of the drying process by monitoring the temperature difference on the surface of the tray 7. When the ice in a certain area completely sublimates, the temperature of the area will rise significantly. Therefore, by observing when the entire surface of the tray 7 reaches a uniform and high temperature, it can be accurately judged whether the primary drying is completed.

[0064] When the temperature of all the tray 7 surfaces on the placing rack 3 is in a stable range, it indicates that the sublimation drying rate of the material on the tray 7 is in a stable state. However, when the infrared image shows that the temperature of a tray 7 or a region rises at a rate less than the average temperature rising rate of the material in all the trays 7, it indicates that the material on the tray 7 is thicker. Specifically, when the thickness of the material on multiple trays 7 is uniform, the temperature rising rate of the material in the tray 7 is relatively consistent during the sublimation drying operation. When the material is unevenly distributed, the material in the tray 7 with a thinner thickness will be sublimated first, thereby causing a local high-temperature area, and the material in the tray 7 with a thicker thickness will still be in a low-temperature state.

[0065] When the control system detects that the material in a tray 7 is not dried synchronously during the sublimation drying stage, the control system will locate the position of the tray 7 according to the transmission data of the infrared image, and pass a forward current into the electromagnetic members at the S1 region and the S3 region of the bottom of the supporting member 5 corresponding to the tray 7. This operation will cause the electromagnetic members to generate a repulsive force repelling the first magnetic member 803, thereby pushing the first magnetic member 803 to drive the bottom net 804 to move upward along the limiting portion 901, so as to release the fitting state of the bottom net 804 and the tray 7, and enable the heat energy to enter the bottom layer of material through the area between the bottom net 804 and the tray 7, so as to improve the drying rate of the material in the tray 7.

[0066] The control system can correspondingly adjust the movement of the bottom net 804 in different trays 7 according to the specific situation of the drying rate of the material in the tray 7. For the tray 7 with the lowest drying rate, the control system can continuously push the bottom net 804 upward by the first magnetic member 803. During the upward movement of the bottom net 804, since the height of the limiting portion 901 is higher than that of the tray 7, the bottom net 804 can finally extend out of the tray 7 as the bottom net 804 continuously moves upward, so as to enable the heat generated by the heating system to be in full contact with the material on the bottom net 804, thereby improving the drying rate of the material on the tray 7. When the bottom net 804 moves upward, the bottom net 804 will abut against the ridges 905 on the top net 904, and the material on the bottom net 804 is limited in the space formed by the multiple ridges 905, so as to fix the material on the bottom net 804, and avoid the phenomenon of material spilling caused by the lifting height of the material on the bottom net 804 being too high.

[0067] Embodiment Four Although the above embodiments can solve the problems of material sticking and uneven drying to some extent, in actual application, in order to realize the circulating movement of the supporting member 5 with the material, the abutting member 4033 needs to be rotationally connected with the intermediate rod 502, and in the state of rotationally connected during the movement of the bottom net 804, unnecessary shaking of the supporting member 5 is easily caused, thereby causing the phenomenon of material spilling. Therefore, the technical scheme is improved on the basis of the embodiment one, and the improved technical scheme is shown as follows.

[0068] Referring to Figures 1 to 10 As shown in the figure, the present application provides a kind of spice extraction residue drying and processing equipment, the inside of the interface piece 4033 is equipped with locking piece 6;When circulating plate 4031 moves in the vertical portion of slide rail 401, interface piece 4033 is fixedly connected with intermediate rod 502 by locking piece 6;When circulating plate 4031 moves in the arc-shaped portion of slide rail 401, interface piece 4033 is rotatably connected with intermediate rod 502.

[0069] Locking piece 6 includes elastic wedge mechanism arranged in the inside of interface piece 4033, locking block is arranged on the outside of elastic wedge mechanism, locking block is matched with the clamping groove on intermediate rod 502, please refer to Figure 4 As shown in the figure.

[0070] In the embodiment, the vertical portion of slide rail 401 is equipped with first magnetic block, second magnetic block is arranged on elastic wedge mechanism, first magnetic block and second magnetic block repel each other magnetically.When circulating plate 4031 moves in the vertical portion of slide rail 401, elastic wedge mechanism pushes locking block to be clamped with the clamping groove on intermediate rod 502, to realize the fixed connection of interface piece 4033 and intermediate rod 502;When circulating plate 4031 moves in the arc-shaped portion of slide rail 401, elastic wedge mechanism pulls locking block to move backward to release the clamping of locking block and clamping groove, to realize the rotatable connection of interface piece 4033 and intermediate rod 502.

[0071] It should be noted that: intermediate rod 502 is equipped with displacement sensor for detecting the position of second magnetic block, when displacement sensor detects that second magnetic block is in the first position, i.e. locking block and clamping groove are in the clamped state, the control signal applied to electromagnetic component by control system is in the effective state;When displacement sensor detects that second magnetic block is in the second position, i.e. locking block and clamping groove are in the non-clamped state, the control signal applied to electromagnetic component by control system is in the invalid state. Thus, the movement of bottom net 804 and top net 904 is only effective when circulating plate 4031 moves in the vertical portion of slide rail 401. When circulating plate 4031 moves in the arc-shaped portion of slide rail 401, bottom net 804 and top net 904 are in the initial state, so that infrared imaging device detects the material on tray 7.

[0072] Finally, it should be pointed out that: the above-mentioned only for the preferred embodiment of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

[0073] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary and that changes can be made in detail without departing from the principles and spirit of the application. The scope of the application is therefore indicated by the appended claims, along with equivalents thereof.

Claims

1. A drying and processing device for spice extraction residue, comprising a body, wherein the body is provided with a vacuum chamber, characterized in that: The display rack, located inside the vacuum chamber, includes a base with symmetrically arranged receiving parts on the top of the base; The support element, which is arranged in an array between two receiving parts, includes a frame for receiving a pallet, and the frame is provided with a central rod; The circulation component is located inside the receiving part and is connected to the intermediate rod. When the circulation component is running, it drives the support component to circulate up and down along the annular groove opened on the receiving part, so that the tray located at the top and bottom of the vacuum chamber can be switched.

2. The equipment for drying and treating spice extraction residue according to claim 1, characterized in that, The circulation component includes: The slide rail is located inside the receiving part, and its position corresponds to the annular groove. A transmission chain is located on the inner ring of the slide rail, and there are arrayed movable parts between the chain and the slide rail. The movable parts are connected to the intermediate rod. The transmission assembly, which drives the transmission chain to circulate within the inner ring of the slide rail, is connected between the two receiving parts by a transmission rod.

3. The equipment for drying and treating spice extraction residue according to claim 2, characterized in that, The movable component includes a circulation plate, which is connected to a slide rail via pulleys and to a transmission chain via a connector. When the transmission assembly is running, the transmission chain drives the circulation plate to move through the connecting parts. Due to the influence of the pulleys and slide rails, the movement trajectory of the circulation plate coincides with the shape of the slide rails.

4. The equipment for drying and treating spice extraction residue according to claim 3, characterized in that, The circulation plate is provided with a docking component, and one end of the docking component that protrudes from the annular groove is connected to the intermediate rod.

5. The equipment for drying and treating spice extraction residue according to claim 4, characterized in that, The docking component is equipped with a locking element inside; when the circulating plate moves in the vertical part of the slide rail, the docking component is fixedly connected to the intermediate rod through the locking element; when the circulating plate moves in the arc-shaped part of the slide rail, the docking component is rotatably connected to the intermediate rod.

6. The equipment for drying and treating spice extraction residue according to claim 5, characterized in that, The pallet is equipped with a lifting component inside, which is used to lift the material so that the material is removed from contact with the bottom of the pallet; A movable component is provided above the lifting component, and the movable component, in cooperation with the lifting component, achieves the fixing and crushing of materials.

7. The equipment for drying and treating spice extraction residue according to claim 6, characterized in that, The lifting component includes positioning cylinders arranged in an array at the bottom of the tray. The positioning cylinders have telescopic parts inside, and the ends of the telescopic parts are provided with first magnetic elements. The first magnetic elements are connected to the bottom mesh provided at the bottom of the tray.

8. The equipment for drying and treating spice extraction residue according to claim 7, characterized in that, The movable component includes a limiting part distributed in an array inside the tray. A top net is slidably connected to the limiting part. A second magnetic element is provided on the upper surface of the top net. An elastic part is provided between the second magnetic element and the limiting part.

9. The equipment for drying and treating spice extraction residue according to claim 8, characterized in that, The lower surface of the top mesh is provided with prisms.

10. The equipment for drying and treating spice extraction residue according to claim 9, characterized in that, The inner bottom of the frame is provided with a positioning groove corresponding to the positioning cylinder, and the bottom of the frame is provided with an electromagnetic component corresponding to the first magnetic component and the second magnetic component.

Images