60° brix citrus juice high-efficiency concentration equipment and process

Abstract

This application relates to a 60°Brix citrus juice high-efficiency concentration device and process, and pertains to the field of citrus juice processing. This invention integrates pretreatment filtration, preheating, and vacuum concentration. The pretreatment tank and concentration tank are synchronously rotated or oscillated for easy and rapid feeding and discharging. Material agitation improves filtration and concentration efficiency. The pretreatment tank has a multi-stage oscillating filtration mechanism arranged from top to bottom, with progressively increasing filter mesh size. Driven by a cylinder, the oscillation is asynchronous, and the scrapers on the filter screen follow the movement, achieving synchronous scraping during the filtration process for precise grading of the citrus juice. The filtered juice enters the collection chamber and is preheated by a heating plate. Volatile gases are discharged through the outlet pipe. The pretreated citrus juice is then introduced into the concentration tank for high-efficiency vacuum concentration under external vacuum and heating conditions, and finally discharged through the outlet pipe. The transmission mechanism uses a guide gear, transmission wheel, and gear ring mesh structure to achieve tank rotation and linkage operation.

Description

Technical Field

[0001] This application relates to the technical field of citrus juice processing, and in particular to a 60°Brix citrus juice high-efficiency concentration device and process. Background Technology

[0002] Citrus juices are widely used in the food processing industry, especially in the production of concentrated juices. It is usually necessary to concentrate the juice to about 60°Brix or higher for storage, transportation and subsequent compounding. In the existing technology, the citrus juice concentration process usually includes multiple independent processes such as pretreatment, filtration and concentration. Among them, the pretreatment often adopts static screens or single-stage filtration structures, which have limited filtration accuracy and are prone to clogging during continuous operation, affecting processing efficiency and product quality.

[0003] In addition, traditional concentration equipment mostly uses a single vacuum evaporation method. Although it can lower the boiling point to a certain extent, the material has poor fluidity in the tank and uneven heating, which can easily lead to local overheating or scaling, thus affecting the concentration efficiency and flavor preservation. At the same time, existing equipment usually separates the filtration, heating and concentration processes, which not only requires a large equipment area and high energy consumption, but also easily causes the risk of contamination and flavor loss during multiple transfers.

[0004] On the other hand, most existing filtration structures are fixed structures, lacking dynamic disturbance methods, and cannot effectively improve filtration throughput; and there is also a lack of effective disturbance or agitation mechanism for materials during the concentration process, resulting in low heat and mass transfer efficiency, making it difficult to further improve overall processing efficiency. In addition, traditional equipment is also inconvenient to maintain, especially the filter components are complicated to disassemble and assemble, and the cleaning efficiency is low, affecting the continuous and stable operation of the equipment. Summary of the Invention

[0005] The purpose of this application is to provide a 60°Brix citrus juice high-efficiency concentration device and process to solve the problems in the background art.

[0006] The 60°Brix citrus juice high-efficiency concentration device provided in this application adopts the following technical solution: it includes a drive motor, the bottom of which is connected to a reducer, the reducer is located on the top of a top block, a transmission mechanism is installed at the bottom of the top block, a pretreatment tank and a concentration tank are respectively provided at the left and right ends of the transmission mechanism, the bottom of the transmission mechanism is connected to a support block, a first top cover is installed on the top of the pretreatment tank, a first air outlet pipe is provided at the right end of the first top cover, a second top cover is installed on the top of the concentration tank, a second air outlet pipe and an injection pipe are respectively provided at the right and left ends of the second top cover, and a connecting pipe is installed at the lower right end of the concentration tank; The transmission mechanism drives the pretreatment tank and the concentration tank to swing and rotate, adjust their positions, and agitate the internal materials to improve the pretreatment or concentration efficiency. The pretreatment tank performs graded pretreatment of the materials. The transmission mechanism includes a rotating shaft located at the bottom of the top block and connected to the reducer at the top, an upper connecting piece connected to the upper outer end of the rotating shaft, a guide gear located at the top of the upper connecting piece, a fixing bolt located inside the guide gear, transmission wheels meshing with the left and right sides of the guide gear, a gear ring meshing with the other end of the transmission wheel, and a lower connecting piece located at the lower outer end of the rotating shaft, and a support block connected to the bottom of the rotating shaft. The fixing bolt is connected to the inside of the top block. The pretreatment tank includes a tank body located inside the gear ring, an inlet sleeve located at the upper end of the tank body, a swing mechanism connected to the top of the inlet sleeve, a filter screen located at the upper end of the swing mechanism, a connecting sleeve located in the middle of the swing mechanism, a connecting sleeve installed at the bottom of the connecting sleeve, a support plate located inside the tank body for supporting the swing mechanism, a collection chamber located at the lower end of the tank body, a heating plate installed at the bottom of the collection chamber, and a discharge pipe located at the bottom of the tank body and communicating with the collection chamber. The tank is equipped with three sets of swing mechanisms from top to bottom. The top of the uppermost swing mechanism is connected to the inlet sleeve, and the swing mechanisms are connected to each other through connecting sleeves. The bottom of the lowermost swing mechanism is connected to the collection bin. The swing mechanism includes a support member for support. The bottom of the support member is connected to the support plate. Two sets of bases are fixed at each of the three ends of the top of the support member. A linkage member is hinged to the inner side of the base. The inner side of the linkage member is hinged to the lower end of the cylinder. The upper end of the cylinder push rod is connected to another set of linkage members. The outer side of the upper linkage member is connected to another set of bases. The top of the base is fixed to the swing member. Two sets of bases are also fixed at each of the three ends of the bottom of the swing member. The bases on the support member and the swing member are not opposite each other. The interior of both the support member and the swing member is open. The openings of the support member and the swing member are connected by a connecting sleeve. The filter screen is placed at the opening of the swing member. The connecting sleeve is used to connect the openings of two adjacent sets of swing mechanism internals.

[0007] Preferably, the toothed rings are embedded in the left and right ends of the upper connector, and the left and right sets of toothed rings are respectively connected to the pretreatment tank and the concentration tank, with the lower ends of the pretreatment tank and the concentration tank placed inside the lower connector.

[0008] Preferably, the three sets of filters have different mesh counts from top to bottom, with the counts increasing progressively.

[0009] Preferably, the inlet sleeve, connecting sleeve, and connecting sleeve are all flexible.

[0010] Preferably, a connecting rod is installed at the top center of the filter screen, the upper outer end of the connecting rod is provided with an external thread, a rotating sleeve is sleeved at the lower end of the connecting rod, scraper strips are fixed at the left and right ends of the rotating sleeve, sliders are welded to the outer sides of the two sets of scraper strips, the outer sides of the sliders are embedded in the guide rail, and the guide rail is fixed to the top of the filter screen.

[0011] Preferably, the specific steps are as follows: S1 opens the first top cover of the citrus juice after the pulp has been separated and pours it into the pretreatment tank, so that the citrus juice falls onto the area above the top layer of filter screen. Then the first top cover is closed to form a sealed environment. S2 starts the cylinders in each level of the swing mechanism, causing the cylinders of different layers to extend and retract asynchronously, driving the swing components of each layer to swing back and forth; the swing components drive the internal filter screen to swing dynamically, so that the citrus juice passes through three sets of filter screens with different mesh sizes for step-by-step precision filtration, removing impurities and particles step by step. At the same time, the scraper is swung on the filter screen by its own gravity under the swing force, achieving synchronous scraping. After being filtered through three layers of filters, the citrus juice from S3 enters the bottom collection chamber for collection. At the same time, the heating plate is activated to preheat the juice. The steam generated during the preheating process is discharged through the first vent pipe to reduce energy consumption for subsequent concentration. S4 uses an external extraction device to pump the preheated citrus juice through a discharge pipe to the injection pipe at the top of the concentration tank, achieving a closed transfer. S5 connects to an external vacuum and heating system via a connecting pipe to evacuate and heat the inside of the concentration tank, allowing the citrus juice to be concentrated at low temperature under negative pressure. The gas generated by evaporation is discharged through the second gas outlet pipe, achieving efficient concentration to the target 60°Brix concentration. During the pretreatment and concentration processes, the S6 synchronously starts the drive motor, which drives the rotating shaft to rotate via the reducer: driving the upper and lower connecting parts to rotate as a whole. Through the meshing structure of guide gear-transmission wheel-gear ring, the pretreatment tank and the concentration tank achieve a compound motion of revolution and rotation. After S7 concentration is complete, open the discharge pipe at the bottom of the concentration tank to discharge and collect the citrus concentrate that has reached 60°Brix. S8 opens the first top cover, connects the filter screen top connecting rod through the external threaded sleeve, and pulls out each level of filter screen in turn for cleaning or replacement to restore filtration performance.

[0012] In summary, this application includes at least one of the following beneficial technical effects: Integrating pre-treatment filtration, pre-heating and vacuum concentration, this equipment is driven by a transmission mechanism composed of a driving motor, a reducer and a rotating shaft to drive the pre-treatment tank and the concentration tank to achieve synchronous rotation or swing adjustment. This not only facilitates rapid feeding and discharging, but also improves the filtration and concentration efficiency by shaking the material. Inside the pre-treatment tank, a multi-stage swing filtration mechanism is arranged from top to bottom, with the mesh number of the filter screen increasing step by step. Under the drive of the cylinder, it realizes asynchronous swing, and at the same time, the scraping bar on the filter screen follows the movement to achieve synchronous scraping during the filtration process, and conducts hierarchical precision filtration on citrus juice; the filtered juice enters the collection bin and is pre-heated by the heating plate, and the volatile gas is discharged through the air outlet pipe. The pre-treated citrus juice is then introduced into the concentration tank and completes high-efficiency vacuum concentration under external vacuum and heating conditions, and finally is discharged through the discharge pipe. The transmission mechanism adopts a structure of a guiding gear, a transmission wheel and a gear ring to realize the self-rotation and linkage operation of the tank body, effectively improving the heat absorption and mass transfer efficiency of the material. Brief Description of the Drawings

[0013] Figure 1 is a schematic structural view of the present invention; Figure 2 is a schematic view of the transmission mechanism of the present invention; Figure 3 is a schematic structural view of the pre-treatment tank of the present invention; Figure 4 is a schematic view of the swing mechanism of the present invention; Figure 5 is a schematic view of the filter screen structure of the present invention.

[0014] Description of the reference numerals in the drawings: driving motor - 1, reducer - 2, top block - 3, transmission mechanism - 4, pre-treatment tank - 5, concentration tank - 6, support block - 7, first top cover - 8, first air outlet pipe - 9, second top cover - 10, second air outlet pipe - 11, injection pipe - 12, docking pipe - 13, support frame - 14, rotating shaft - 41, upper connecting piece - 42, guiding gear - 43, fixing bolt - 44, transmission wheel - 45, gear ring - 46, lower connecting piece - 47, tank body - 51, guiding sleeve - 52, swing mechanism - 53, filter screen - 54, connecting sleeve - 55, connecting collar - 56, support plate - 57, collection bin - 58, heating plate - 59, discharge pipe - 510, support member - 531, base - 532, linkage member - 533, cylinder - 534, swing member - 535, connecting rod - 54a, rotating sleeve - 54b, scraping bar - 54c, slider - 54d, guide rail - 54e. Detailed Embodiment

[0015] In order to further explain the technical solution of the present invention, the following will be elaborated in detail through specific embodiments.

[0016] Please refer to Figure 1This invention provides a 60°Brix citrus juice high-efficiency concentration device and process, including a drive motor 1 for driving, a reducer 2 connected to the bottom output shaft of the drive motor 1, the reducer 2 being located on the top of a top block 3, and a transmission mechanism 4 connected to the bottom of the top block 3. A pretreatment tank 5 is installed at the left end of the transmission mechanism 4, and a concentration tank 6 is installed at the right end. The transmission mechanism 4 can drive the pretreatment tank 5 and the concentration tank 6 to swing or rotate, adjusting their positions to facilitate rapid feeding or discharging, and to achieve internal material agitation, improving pretreatment or concentration efficiency. The pretreatment tank 5 can perform graded pretreatment of the material. The system performs high-efficiency and precision filtration. The bottom of the transmission mechanism 4 is connected to the support block 7, which supports the transmission mechanism 4. The top of the pretreatment tank 5 is provided with a first top cover 8, and the right end of the top of the first top cover 8 is equipped with a first air outlet pipe 9. The second top cover 10 is located on the top of the concentration tank 6, and the right end of the top of the second top cover 10 is provided with a second air outlet pipe 11, and the left end is equipped with an injection pipe 12. The bottom of the concentration tank 6 is provided with a discharge pipe, and the lower right end of the concentration tank 6 is provided with a connecting pipe 13 that can be connected to external vacuum and heating equipment. The top block 3 and the support block 7 are both fixed with support frames 14 at the front and rear ends, which support the entire equipment.

[0017] Please see Figure 2 The transmission mechanism 4 includes a rotating shaft 41 located at the bottom of the top block 3 and connected to the support block 7. The top of the rotating shaft 41 is connected to the lower end of the reducer 2 and can be rotated by the drive motor 1. The upper and lower ends of the rotating shaft 41 are respectively provided with an upper connecting member 42 and a lower connecting member 47. The upper and lower connecting members 42 and 47 are each provided with a circular groove at their left and right ends. The upper part of the middle of the upper connecting member 42 is provided with a guide gear 43. The four ends of the guide gear 43 are fixed to the top block 3 by fixing bolts 44. A set of transmission wheels 45 meshes on each of the left and right sides of the guide gear 43. The other end of the transmission wheel 45 meshes with a gear ring 46. The middle of the transmission wheel 45 is rotatably connected to the upper connecting member 42. The gear ring 46 is embedded in the inner side of the upper connecting member 42. The left and right sets of gear rings 46 are respectively connected to the pretreatment tank 5 and the concentration tank 6. The lower ends of the pretreatment tank 5 and the concentration tank 6 are connected to the inner side of the lower connecting member 47.

[0018] Please see Figures 3-5The pretreatment tank 5 includes a tank body 51 connected to the left end of the upper connector 42. The top of the tank body 51 is open, and an inlet sleeve 52 is fixed to the upper end of the tank body 51. Three sets of swing mechanisms 53 are installed inside the tank body 51 from top to bottom. The top of the uppermost swing mechanism 53 is connected to the inlet sleeve 52. A filter screen 54 is installed at the upper end of the swing mechanism 53. The filter screen 54 is arc-shaped, and a connecting rod 54a is fixed to the middle of the top of the filter screen 54. The three sets of filter screens have different mesh sizes from top to bottom, increasing progressively. The connecting rod 54a... The upper outer end is provided with an external thread. The lower end of the connecting rod 54a is fitted with a rotatable rotating sleeve 54b. Scraper strips 54c are fixed to the left and right ends of the outer side of the rotating sleeve 54b. The scraper strips 54c are arc-shaped to match the shape of the lower end of the filter screen 54. The scraper strips 54c can rotate with the rotating sleeve 54b. The front and rear ends of the scraper strips 54c are chamfered to facilitate scraping on the filter screen 54. Slider strips 54d are welded to the outer side of the two sets of scraper strips 54c. The outer side of the sliders 54d is embedded in the guide rail 54e. The guide rail 54e is arc-shaped and fixed to the top of the filter screen 54. The lower end of the inner groove of the guide rail 54e is chamfered to prevent blockage. The slider 54d moves along the guide rail 54e. The scraper 54c is a solid structure, which allows it to move on the filter screen 54 by its own weight during the swing. A connecting sleeve 55 is installed in the middle of the swing mechanism 53. The swing mechanisms 53 are connected by a connecting sleeve 56. The inlet sleeve 52, the connecting sleeve 55, and the connecting sleeve 56 are all flexible. Inside the tank 51 A base 532 is fixed to the side, and the base 532 is connected to the bottom of the swing mechanism 53 for support. Support plates 57 are fixed at both ends of the inner side of the tank body 51. A collection chamber 58 is installed at the bottom of the tank body 51. The top of the collection chamber 58 is connected to the bottom of the lowest swing mechanism 53. A heating plate 59 for preheating is provided at the lower end of the collection chamber 58. A discharge pipe 510 is installed in the middle of the bottom end of the tank body 51. The discharge pipe 510 communicates with the inside of the collection chamber 58. A sealed door is installed on the back of the tank body 51 and can be opened. The swing mechanism 53 includes a support member 531 for support. The bottom of the support member 531 is connected to the support plate 57. Two sets of bases 532 are fixed at each of the three ends of the top of the support member 531. A linkage member 533 is hinged to the inner side of the base 532. The inner side of the linkage member 533 is hinged to the lower end of the cylinder 534. The upper end of the cylinder 534 push rod is connected to another set of linkage members 533. The outer side of the upper linkage member 533 is connected to another set of bases 532. The top of the base 532 is fixed to the swing member 535. Two sets of bases 532 are also fixed at each of the three ends of the bottom of the swing member 535. The positions of the bases installed on the support member 531 and the swing member 535 are not opposite. The interiors of the support member 531 and the swing member 535 are open. The openings of the support member 531 and the swing member 535 are connected by a connecting sleeve 55. The filter screen 54 is placed at the opening of the swing member 535. The connecting sleeve 56 is used to connect the openings of two adjacent swing mechanisms 53.

[0019] The specific implementation process is as follows: When it is necessary to concentrate 60°Brix citrus juice, first open the first top cover 8, then pour the citrus juice after pulp separation into the tank 51, placing it on top of the first set of filter screens 54. Then close the first top cover 8, and after closing, start the cylinder 534 inside the swing mechanism 53. Each set of cylinders 534 pushes out or pulls back asynchronously, which can realize the swing of the top swing member 535. During the swing, the swing member 535 can realize the swing of the filter screen 54 connected to the inner side. Under the force, the scraper 54c on the filter screen 54 can move with it. During the movement, guided by the sliders 54d at both ends, the scraper 54c can scrape the filter screen 54 in coordination with the swing motion, improving the filtration efficiency. The filtered juice passes through three layers of filtration and enters the collection chamber 58 below for storage. It is preheated by the heating plate 59, and the steam is discharged from the first vent pipe 9 at the top. Pre-treated and heated citrus juice can be introduced into injection pipe 12 through discharge pipe 510 by external extraction equipment, so that it enters concentration tank 6 for vacuum concentration, exhaust is carried out through second vent pipe 11, and the concentrated juice can be discharged through discharge pipe at the bottom of concentration tank 6. During the pretreatment and concentration processes, the drive motor 1 can be started to work. The drive motor 1 drives the rotating shaft 41 to rotate through the reducer 2. During the rotation of the rotating shaft 41, the connecting parts at the upper and lower ends cause the pretreatment tank 5 and the concentration tank 6 to rotate. During the rotation, the gear ring 46 can rotate on its own under the guidance of the guide gear 43 along the transmission wheel 45, so that the gear ring 46 drives the pretreatment tank 5 and the concentration tank 6 to rotate, effectively assisting the efficient operation of pretreatment and concentration. If it is necessary to clean the filter screen 54 inside the tank 51, the first top cover 8 can be opened, and then the external threaded sleeve can be inserted into the tank 51 to connect the connecting rod 54a at the top of the filter screen 54. Then, the filter screen 54 can be pulled out in sequence for cleaning.

[0020] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made based on the structural and shape principles of this application should be included within the scope of protection of this application.

Claims

1. A 60°Brix citrus juice high-efficiency concentration device, characterized in that: The device includes a drive motor, the bottom of which is connected to a reducer. The reducer is located on the top of the top block. A transmission mechanism is installed at the bottom of the top block. A pretreatment tank and a concentration tank are respectively installed at the left and right ends of the transmission mechanism. The bottom of the transmission mechanism is connected to a support block. A first top cover is installed on the top of the pretreatment tank. A first vent pipe is installed at the right end of the first top cover. A second top cover is installed on the top of the concentration tank. A second vent pipe and an injection pipe are respectively installed at the right and left ends of the second top cover. A connecting pipe is installed at the lower right end of the concentration tank. Support frames are fixed at both the front and rear ends of the top block and the support block. The transmission mechanism drives the pretreatment tank and the concentration tank to swing and rotate, adjust their positions, and agitate the internal materials to improve the pretreatment or concentration efficiency. The pretreatment tank performs graded pretreatment of the materials. The transmission mechanism includes a rotating shaft located at the bottom of the top block and connected to the reducer at the top, an upper connecting piece connected to the upper outer end of the rotating shaft, a guide gear located at the top of the upper connecting piece, a fixing bolt located inside the guide gear, transmission wheels meshing with the left and right sides of the guide gear, a gear ring meshing with the other end of the transmission wheel, and a lower connecting piece located at the lower outer end of the rotating shaft, and a support block connected to the bottom of the rotating shaft. The fixing bolt is connected to the inside of the top block. The pretreatment tank includes a tank body located inside the gear ring, an inlet sleeve located at the upper end of the tank body, a swing mechanism connected to the top of the inlet sleeve, a filter screen located at the upper end of the swing mechanism, a connecting sleeve located in the middle of the swing mechanism, a connecting sleeve installed at the bottom of the connecting sleeve, a support plate located inside the tank body for supporting the swing mechanism, a collection chamber located at the lower end of the tank body, a heating plate installed at the bottom of the collection chamber, and a discharge pipe located at the bottom of the tank body and communicating with the collection chamber. The tank is equipped with three sets of swing mechanisms from top to bottom. The top of the uppermost swing mechanism is connected to the inlet sleeve, and the swing mechanisms are connected to each other through connecting sleeves. The bottom of the lowermost swing mechanism is connected to the collection bin. The swing mechanism includes a support member for support. The bottom of the support member is connected to the support plate. Two sets of bases are fixed at each of the three ends of the top of the support member. A linkage member is hinged to the inner side of the base. The inner side of the linkage member is hinged to the lower end of the cylinder. The upper end of the cylinder push rod is connected to another set of linkage members. The outer side of the upper linkage member is connected to another set of bases. The top of the base is fixed to the swing member. Two sets of bases are also fixed at each of the three ends of the bottom of the swing member. The bases on the support member and the swing member are not opposite each other. The interior of both the support member and the swing member is open. The openings of the support member and the swing member are connected by a connecting sleeve. The filter screen is placed at the opening of the swing member. The connecting sleeve is used to connect the openings of two adjacent sets of swing mechanism internals.

2. The 60°Brix citrus juice high-efficiency concentration equipment according to claim 1, characterized in that: The toothed rings are embedded in the upper connector at both ends. The two sets of toothed rings are connected to the pretreatment tank and the concentration tank respectively. The lower ends of the pretreatment tank and the concentration tank are placed inside the lower connector.

3. The 60°Brix citrus juice high-efficiency concentration equipment according to claim 1, characterized in that: The three sets of filters have different mesh counts from top to bottom, with the count increasing progressively.

4. The 60°Brix citrus juice high-efficiency concentration equipment according to claim 1, characterized in that: The inlet sleeve, connecting sleeve, and connecting sleeve are all flexible.

5. The 60°Brix citrus juice high-efficiency concentration device according to claim 1, characterized in that: A connecting rod is installed at the top center of the filter screen. The upper outer end of the connecting rod is provided with an external thread. A rotating sleeve is fitted at the lower end of the connecting rod. Scraper strips are fixed at the left and right ends of the rotating sleeve. Slider strips are welded to the outer sides of the two sets of scraper strips. The outer sides of the sliders are embedded in the guide rail, and the guide rail is fixed to the top of the filter screen.

6. A process for highly efficient concentration of 60°Brix citrus juice, characterized in that: The specific steps are as follows: S1 opens the first top cover of the citrus juice after the pulp has been separated and pours it into the pretreatment tank, so that the citrus juice falls onto the area above the top layer of filter screen. Then the first top cover is closed to form a sealed environment. S2 starts the cylinders in each level of the swing mechanism, causing the cylinders of different layers to extend and retract asynchronously, driving the swing components of each layer to swing back and forth; the swing components drive the internal filter screen to swing dynamically, so that the citrus juice passes through three sets of filter screens with different mesh sizes for step-by-step precision filtration, removing impurities and particles step by step. At the same time, the scraper is swung on the filter screen by its own gravity under the swing force, achieving synchronous scraping. After being filtered through three layers of filters, the citrus juice from S3 enters the bottom collection chamber for collection. At the same time, the heating plate is activated to preheat the juice. The steam generated during the preheating process is discharged through the first vent pipe to reduce energy consumption for subsequent concentration. S4 uses an external extraction device to pump the preheated citrus juice through a discharge pipe to the injection pipe at the top of the concentration tank, achieving a closed transfer. S5 connects to an external vacuum and heating system via a connecting pipe to evacuate and heat the inside of the concentration tank, allowing the citrus juice to be concentrated at low temperature under negative pressure. The gas generated by evaporation is discharged through the second gas outlet pipe, achieving efficient concentration to the target 60°Brix concentration. During the pretreatment and concentration processes, the S6 synchronously starts the drive motor, which drives the rotating shaft to rotate via the reducer: driving the upper and lower connecting parts to rotate as a whole. Through the meshing structure of guide gear-transmission wheel-gear ring, the pretreatment tank and the concentration tank achieve a compound motion of revolution and rotation. After S7 concentration is complete, open the discharge pipe at the bottom of the concentration tank to discharge and collect the citrus concentrate that has reached 60°Brix. S8 opens the first top cover, connects the filter screen top connecting rod through the external threaded sleeve, and pulls out each level of filter screen in turn for cleaning or replacement to restore filtration performance.

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