A spice extraction tank
By employing a vertical spiral shaft and magnetic coupling in the spice extraction tank, the problem of high slag moisture content in existing equipment has been solved, achieving efficient continuous extraction and convenient maintenance, and improving extraction purity and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOHE YIJIAXIN FOOD CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-26
AI Technical Summary
In existing spice extraction equipment, the spiral discharge function is only used as an auxiliary conveying function, which results in the spices being soaked for a long time before extrusion. The moisture content of the slag is as high as 60% or more, which leads to a heavy load for subsequent drying or processing and is not conducive to continuous extraction processing.
A spice extraction tank was designed, which uses a combination of a vertically arranged first spiral shaft and a second spiral shaft. A magnetic coupling is used to achieve contactless power transmission. Combined with a detachable filter cartridge and an arc-shaped flow guide, it can achieve efficient slag discharge and continuous extraction, reduce the moisture content of the slag, and improve the extraction efficiency.
It achieves efficient slag discharge, reduces the moisture content of the slag, reduces the burden of subsequent processing, improves extraction purity and efficiency, has a structure that is easy to disassemble and maintain, adapts to spices of different particle sizes, and avoids the complexity of traditional mechanical couplings.
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Figure CN224404435U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extraction tank technology, specifically a spice extraction tank. Background Technology
[0002] Currently, the commonly used equipment for industrial extraction of active ingredients from spices mainly includes three categories: batch multi-functional extraction tanks, continuous countercurrent extraction towers, and straight-cylinder extraction tanks with screw conveyors. Batch tanks have a simple structure and strong adaptability, and typically employ batch operations with top feeding and bottom slag discharge. Continuous countercurrent towers are equipped with sieve plates or packing materials inside the tower, causing the solvent and spices to flow in opposite directions, achieving relatively continuous extraction. In recent years, some straight-cylinder extraction tanks have been developed with a horizontal screw at the bottom, which pushes the impregnated material to one end through low-speed rotation, thereby replacing manual slag removal and shortening the slag discharge time.
[0003] Although the above solution is widely accepted in application, its spiral discharge function is only used as an auxiliary conveying function and fails to truly solve the integrated demand of "continuous extraction - immediate slag discharge". Moreover, the spiral is mostly arranged horizontally and only plays a transporting role. The spices are still soaked for a long time before extrusion, resulting in a slag moisture content of more than 60%. The subsequent drying or processing load is large and it is not convenient for continuous extraction processing. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a spice extraction tank that offers advantages such as convenient continuous extraction and residue cleaning. It solves the problems in existing technologies where the spirals are mostly horizontally arranged and only serve a transport function, resulting in spices being soaked for a long time before extrusion, leading to a residue moisture content of over 60%, and subsequent drying or processing with a heavy load, making it unsuitable for continuous extraction processing.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a spice extraction tank, comprising a tank body, an extraction mechanism, and a slag discharge mechanism, wherein the extraction mechanism is disposed inside the tank body, and the slag discharge mechanism is disposed inside the tank body and connected to the extraction mechanism;
[0006] The extraction mechanism includes a separation cylinder fixedly connected to the inside of the tank, a filter cylinder is installed inside the separation cylinder, a first motor is fixedly connected to the top of the tank, the output end of the first motor is connected to a rotating shaft extending through to the inside of the tank, and several sets of stirring blades are fixedly connected to the outside of the rotating shaft.
[0007] The slag discharge mechanism includes a flow guide hood disposed inside the tank and connected to the inside of the filter cylinder. A discharge hole is provided on the inner bottom wall of the tank. A discharge pipe is embedded inside the discharge hole. A support plate is horizontally fixed inside the discharge pipe. A first spiral shaft is rotatably connected to the top of the support plate. Magnetic couplings are provided at the ends of the first spiral shaft and the rotating shaft that are close to each other. A horizontal slag discharge pipe is connected to the bottom of the discharge pipe. A second spiral shaft is rotatably disposed inside the horizontal slag discharge pipe. A collecting element is provided at the bottom of the horizontal slag discharge pipe. A second motor is fixedly connected to the left end of the horizontal slag discharge pipe. The output end of the second motor is connected to the second spiral shaft.
[0008] Furthermore, the collecting component includes an opening at the bottom of the horizontal slag discharge pipe, a filter plate is embedded inside the opening, a collecting box is provided at the bottom of the horizontal slag discharge pipe and outside the filter plate, a collecting pipe is connected to the bottom of the collecting box, and a pump body is connected to the end of the collecting pipe away from the collecting box.
[0009] Furthermore, an inlet pipe is connected to the bottom left side of the tank, and an outlet pipe is connected to the top right side of the tank.
[0010] Furthermore, the filter cartridge is detachably installed inside the separation cylinder, and both the filter cartridge and the separation cylinder have several sets of mesh openings on their outer sides, with the mesh diameter of the filter cartridge being smaller than that of the separation cylinder.
[0011] Furthermore, both the filter cylinder and the separation cylinder have connection holes at their bottoms for installing the feed pipe.
[0012] Furthermore, several groups of stirring blades are arranged in an array along the length of the rotating shaft, and each group of stirring blades has a paddle with a different orientation on its outer side.
[0013] Furthermore, the cross-sectional shape of the drainage hood is set to arc shape, and a discharge port is opened at the bottom of the drainage hood, and the discharge port is flush with the end face of the discharge tube.
[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0015] 1. This spice extraction tank vertically transfers residue to a second spiral shaft via a first spiral shaft, achieving efficient residue discharge. The first spiral shaft is connected to the rotating shaft via a magnetic coupling, allowing for flexible start and stop via electromagnetic control. During residue discharge, the magnetic coupling, driven by a first motor, rotates the first spiral shaft, smoothly discharging the residue from the tank, improving discharge efficiency, reducing moisture content, and lessening the burden on subsequent processing. The magnetic coupling also simplifies maintenance, avoiding the complex disassembly and assembly of traditional mechanical couplings, thus improving equipment reliability and safety. The detachable filter cartridge and the configuration of different mesh diameters facilitate adjustment according to spice particle size and also aid in cleaning and maintenance. The arc-shaped design of the flow guide and the discharge port flush with the end face of the discharge pipe optimize the flow direction of the residue and prevent blockage. The overall structure facilitates disassembly, cleaning, and maintenance.
[0016] 2. This spice extraction tank greatly assists in the spice extraction process through its extraction mechanism. Its filter cartridge is detachable and installed inside the separation cartridge. The two have different mesh diameters, which can efficiently filter and separate spice particles from the extract, improving the extraction purity. It is equipped with a rotating shaft driven by a first motor and stirring blades. Multiple sets of stirring blades are distributed along the rotating shaft array. The multi-directional stirring blades enhance the mixing of solvent and spices, accelerate the dissolution of active ingredients, and significantly improve extraction efficiency and quality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the extraction mechanism of this utility model;
[0019] Figure 3 This is a schematic diagram of the slag discharge mechanism of this utility model;
[0020] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0021] Figure 5 This is a partial structural diagram of the slag discharge mechanism of this utility model.
[0022] In the diagram: 1. Tank body; 11. Inlet pipe; 12. Outlet pipe; 2. Extraction mechanism; 21. Separation cylinder; 22. Filter cylinder; 23. First motor; 24. Rotating shaft; 25. Stirring blade; 3. Slag discharge mechanism; 31. Drainage hood; 32. Discharge hole; 33. Feed pipe; 34. Support plate; 35. First screw shaft; 36. Magnetic coupling; 37. Horizontal slag discharge pipe; 38. Second screw shaft; 39. Collector; 391. Filter plate; 392. Collection box; 393. Collection pipe; 310. Second motor. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example 1: Please refer to Figure 1-5 In this embodiment, a spice extraction tank includes a tank body 1, an extraction mechanism 2, and a slag discharge mechanism 3. The extraction mechanism 2 is located inside the tank body 1, and the slag discharge mechanism 3 is located inside the tank body 1 and connected to the extraction mechanism 2.
[0025] Example 2: Please refer to Figure 1-5 Based on Embodiment 1, the extraction mechanism 2 in this embodiment includes a separation cylinder 21 fixedly connected inside the tank 1. A filter cylinder 22 is installed inside the separation cylinder 21. A first motor 23 is fixedly connected to the top of the tank 1. The output end of the first motor 23 is connected to a rotating shaft 24 that extends through into the tank 1. Several sets of stirring blades 25 are fixedly connected to the outside of the rotating shaft 24. The first motor 23 drives the rotating shaft 24 to rotate the stirring blades 25 and the stirring blades, thus fully agitating the spices.
[0026] In this embodiment, the slag discharge mechanism 3 includes a flow guide hood 31 disposed inside the tank body 1 and connected to the inside of the filter cylinder 22. A discharge hole 32 is provided on the inner bottom wall of the tank body 1. A discharge pipe 33 is embedded inside the discharge hole 32. A support plate 34 is horizontally fixed inside the discharge pipe 33. A first spiral shaft 35 is rotatably connected to the top of the support plate 34. Magnetic couplings 36 are provided at the ends of the first spiral shaft 35 and the rotating shaft 24 that are close to each other. A horizontal slag discharge pipe 37 is connected to the bottom end of the discharge pipe 33. A second spiral shaft 38 is rotatably disposed inside the horizontal slag discharge pipe 37. A collection piece 39 is provided at the bottom of the horizontal slag discharge pipe 37. A second motor 310 is fixedly connected to the left end of the horizontal slag discharge pipe 37. The output end of the second motor 310 is connected to the second spiral shaft 38.
[0027] It should be noted that the magnetic coupling 36 is not a traditional permanent magnet type magnetic coupling structure, but a controllable electromagnetic-permanent magnet composite magnetic coupling structure composed of a permanent magnet and an electromagnetic coil. Its typical model can be classified as an electromagnetic meshing type magnetic coupling structure, including an inner magnetic rotor, an outer magnetic rotor, an electromagnetic coil, an isolation sleeve, and a waterproof structure. The control system energizes the electromagnetic coil instantaneously, and the outer magnetic rotor generates an enhanced magnetic field, which forms a strong coupling with the permanent magnet magnetic field of the inner magnetic rotor. The torque of the rotating shaft (24) can be transmitted to the first spiral shaft (35) without contact, driving it to rotate and discharge slag. After the slag is discharged, the coil is de-energized, the magnetic field of the outer magnetic rotor weakens to the background value of the permanent magnet, the magnetic coupling fails, the inner and outer magnetic rotors automatically disengage, and the first spiral shaft (35) stops rotating. At this time, the tank can continue pure extraction operation, realizing the online engagement and disengagement of "electromagnetic to mechanical". When the slag discharge resistance is too high, the magnetic coupling will slip, avoiding motor overload and playing a safety protection role.
[0028] In this embodiment, the collecting component 39 includes an opening at the bottom of the horizontal slag discharge pipe 37, a filter plate 391 is embedded inside the opening, a collecting box 392 is provided at the bottom of the horizontal slag discharge pipe 37 and outside the filter plate 391, a collecting pipe 393 is connected to the bottom of the collecting box 392, and a pump body is connected to the end of the collecting pipe 393 away from the collecting box 392.
[0029] Specifically, the second motor 310 drives the second spiral shaft 38 to rotate inside the horizontal slag discharge pipe 37, performing secondary extrusion on the slag. The extruded residual liquid enters the collection box 392 through the filter plate 391, and is then pumped back into the tank for circulation through the collection pipe 393. After dehydration, the slag is continuously discharged from the end of the slag discharge pipe. When the slag discharge is completed, the magnetic coupling 36 is de-energized and disconnected, the first spiral shaft 35 stops rotating, and the tank returns to the pure extraction state, realizing continuous operation from extraction to slag discharge without interference.
[0030] In this embodiment, an inlet pipe 11 is connected to the bottom left side of the tank body 1, and an outlet pipe 12 is connected to the top right side of the tank body 1.
[0031] It should be noted that the can body 1 includes the can body and the can lid placed on top of the can body. The can lid can be detached and opened to allow spices to be added inside and for module assembly and disassembly.
[0032] Specifically, by opening the lid of the tank 1, the spice raw materials are poured into the interior of the separator 21, and then the extraction solvent is introduced into the tank 1 through the liquid inlet pipe 11.
[0033] In this embodiment, the filter cylinder 22 is detachably installed inside the separation cylinder 21. Both the filter cylinder 22 and the separation cylinder 21 have several sets of mesh openings on their outer sides, and the mesh diameter of the filter cylinder 22 is smaller than that of the separation cylinder 21.
[0034] Specifically, the extraction solvent enters the tank 1 through the inlet pipe 11, first passes through the coarse mesh of the separation cylinder 21, and then flows upward through the fine mesh of the filter cylinder 22, forming a two-stage filtration method from coarse to fine.
[0035] In this embodiment, both the filter cylinder 22 and the separator cylinder 21 have connection holes at their bottoms for installing the feed pipe 33.
[0036] In this embodiment, several groups of stirring blades 25 are arranged in an array along the length of the rotating shaft 24, and the outer sides of several groups of stirring blades 25 are provided with blades facing different directions.
[0037] In this embodiment, the cross-sectional shape of the flow guide 31 is set to arc shape, and the bottom of the flow guide 31 is provided with a discharge port, which is flush with the end face of the discharge pipe 33.
[0038] Specifically, when slag needs to be discharged, the control system energizes the magnetic coupling 36, causing the rotating shaft 24 to engage with the first spiral shaft 35 instantly through magnetic force, achieving contactless power transmission. The first spiral shaft 35 rotates vertically in the discharge pipe 33, pushing the slag downwards, and falling into the horizontal slag discharge pipe 37 through the arc-shaped discharge port of the guide hood 31.
[0039] The working principle of the above embodiments is as follows:
[0040] By opening the lid of tank 1, the spice raw materials are poured into the interior of the separator 21. Then, the extraction solvent enters tank 1 through the inlet pipe 11, first passing through the coarse mesh of the separator 21, and then flowing upwards through the fine mesh of the filter 22, forming a two-stage filtration process from coarse to fine. The first motor 23 drives the rotating shaft 24 to rotate the stirring blades 25 and the agitator, fully agitating the spices. The extract is then continuously discharged from the outlet pipe 12. When slag discharge is required, the control system energizes the magnetic coupling 36, causing the rotating shaft 24 to instantly engage with the first spiral shaft 35 via magnetic force, achieving contactless power transmission. The material rotates vertically within the feed pipe 33, pushing the slag downwards. It falls through the arc-shaped feed port of the guide hood 31 into the horizontal slag discharge pipe 37, completing the first conveying from inside the tank to outside the pipe. The second motor 310 drives the second spiral shaft 38 to rotate within the horizontal slag discharge pipe 37, performing a second compression on the slag. The squeezed residual liquid enters the collection box 392 through the filter plate 391, and is then drawn back into the tank for circulation through the collection pipe 393. After dehydration, the slag is continuously discharged from the end of the slag discharge pipe. When the slag discharge is completed, the magnetic coupling 36 is de-energized and disconnected, the first spiral shaft 35 stops rotating, and the tank returns to a pure extraction state, achieving continuous operation from extraction to slag discharge without interference.
[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.
[0042] If this patent discloses or relates to components or structural parts that are fixedly connected to each other, then unless otherwise stated, a fixed connection can be understood as: a fixed connection that can be detached (e.g., using bolts or screws), or a fixed connection that cannot be detached (e.g., riveting or welding). Of course, a fixed connection can also be replaced by an integral structure (e.g., manufactured in one piece using a casting process) (except where it is obviously impossible to use an integral molding process).
[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A spice extraction vessel, characterized in that: It includes a tank (1), an extraction mechanism (2) and a slag discharge mechanism (3). The extraction mechanism (2) is located inside the tank (1), and the slag discharge mechanism (3) is located inside the tank (1) and connected to the extraction mechanism (2). The extraction mechanism (2) includes a separation cylinder (21) fixedly connected inside the tank (1), a filter cylinder (22) is installed inside the separation cylinder (21), a first motor (23) is fixedly connected to the top of the tank (1), the output end of the first motor (23) is connected to a rotating shaft (24) that extends through into the tank (1), and a number of stirring blades (25) are fixedly connected to the outside of the rotating shaft (24). The slag discharge mechanism (3) includes a flow guide hood (31) disposed inside the tank body (1) and connected to the inside of the filter cylinder (22). A discharge hole (32) is provided on the inner bottom wall of the tank body (1). A discharge pipe (33) is embedded inside the discharge hole (32). A support plate (34) is horizontally fixed inside the discharge pipe (33). A first spiral shaft (35) is rotatably connected to the top of the support plate (34). The first spiral shaft (35) is connected to the rotating shaft (2). 4) Magnetic couplings (36) are provided at the ends that are close to each other. A horizontal slag discharge pipe (37) is connected to the bottom end of the discharge pipe (33). A second spiral shaft (38) is rotatably provided inside the horizontal slag discharge pipe (37). A collection piece (39) is provided at the bottom of the horizontal slag discharge pipe (37). A second motor (310) is fixedly connected to the left end of the horizontal slag discharge pipe (37). The output end of the second motor (310) is connected to the second spiral shaft (38).
2. The spice extraction tank according to claim 1, characterized in that: The collecting component (39) includes an opening at the bottom of the horizontal slag discharge pipe (37), a filter plate (391) is embedded inside the opening, a collecting box (392) is provided at the bottom of the horizontal slag discharge pipe (37) and outside the filter plate (391), a collecting pipe (393) is connected to the bottom of the collecting box (392), and a pump body is connected to the end of the collecting pipe (393) away from the collecting box (392).
3. The spice extraction tank according to claim 2, characterized in that: The bottom left side of the tank (1) is connected to an inlet pipe (11), and the top right side of the tank (1) is connected to an outlet pipe (12).
4. A spice extraction tank according to claim 3, characterized in that: The filter cylinder (22) is detachably installed inside the separation cylinder (21). Both the filter cylinder (22) and the separation cylinder (21) have several sets of mesh openings on their outer sides, and the mesh diameter of the filter cylinder (22) is smaller than that of the separation cylinder (21).
5. A spice extraction tank according to claim 4, characterized in that: Both the filter cylinder (22) and the separator cylinder (21) have connection holes at their bottoms for the installation of the feed pipe (33).
6. A spice extraction tank according to claim 5, characterized in that: Several groups of stirring blades (25) are arranged in an array along the length of the rotating shaft (24), and the outer sides of several groups of stirring blades (25) are provided with blades facing different directions.
7. A spice extraction tank according to claim 6, characterized in that: The cross-sectional shape of the flow guide (31) is set to arc shape, and the bottom of the flow guide (31) is provided with a discharge port, which is flush with the end face of the discharge pipe (33).