Mulberry leaf polysaccharide extraction device
The mulberry leaf polysaccharide extraction device, which combines a mixing tank and a centrifuge cylinder, solves the problem of insufficient extraction of mulberry leaf polysaccharides and achieves efficient solid-liquid separation and improved purity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN FOOD & DRUG VOCATIONAL COLLEGE
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-05
AI Technical Summary
In existing technologies, some mulberry leaf polysaccharides adhere to the material, making full extraction impossible.
It adopts a combination structure of a mixing tank and a centrifuge cylinder. Through the cooperation of the stirring mechanism and heating wire, it uses the stirring rod and centrifugal force to stir and separate, and combines the filter screen to separate solid and liquid, thereby improving the extraction efficiency.
This effectively improved the extraction efficiency of mulberry leaf polysaccharides, ensuring the purity and quality of the extract.
Smart Images

Figure CN224321118U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mulberry leaf extraction technology, and in particular to a mulberry leaf polysaccharide extraction device. Background Technology
[0002] Mulberry leaf polysaccharide extraction refers to the process of separating and enriching polysaccharides contained in mulberry leaves from mulberry leaf tissues using specific methods and processes. This process typically employs physical, chemical, and possibly biotechnological methods to dissolve mulberry leaf polysaccharides in a specific solution, followed by a series of operations such as filtration, separation, and purification to obtain a relatively pure mulberry leaf polysaccharide extract.
[0003] Chinese patent CN222550175U discloses a mulberry leaf polysaccharide extraction device. The new utility model has a pulverizing blade that can pulverize mulberry leaves, thereby improving the subsequent extraction effect. The stirring rod can make the mulberry leaf material and the extraction solvent evenly mixed. The scraper can scrape off the mulberry leaf material adhering to the inner wall of the extraction tank, so as to avoid some mulberry leaf material not being evenly mixed with the extraction solvent.
[0004] However, this patent also has the following problems: after the mulberry leaf material and the extract are stirred and mixed in the extraction tank, they are directly filtered, and some polysaccharides will adhere to the material, making it impossible to fully extract them. Utility Model Content
[0005] This invention provides a mulberry leaf polysaccharide extraction device, which can solve the problem in the prior art that some polysaccharides are attached to the material and cannot be fully extracted.
[0006] A mulberry leaf polysaccharide extraction device includes a stirring tank, an extraction tank, and an extraction mechanism. The stirring tank is located on top of the extraction tank and is connected to it. The stirring mechanism is installed inside the stirring tank to stir mulberry leaf residue. The extraction mechanism includes a centrifuge cylinder, a first motor, and a retaining ring. The first motor is located at the bottom of the extraction tank, and its output end is connected to the centrifuge cylinder. The centrifuge cylinder is rotatably installed inside the extraction tank. The retaining ring is fixedly installed inside the extraction tank and located outside the centrifuge cylinder. A collection trough is provided at the bottom of the extraction tank, and several leakage holes are opened at the bottom of the collection trough. The collection trough is located between the retaining ring and the centrifuge cylinder. A collection box is provided at the bottom of the extraction tank, and the collection box is connected to the collection trough.
[0007] According to one embodiment of the present invention, the stirring mechanism includes a second motor, a stirring shaft, and stirring rods. The second motor is fixedly mounted on the top of the stirring tank, and its output end is connected to the stirring shaft. A plurality of stirring rods are mounted on the stirring shaft.
[0008] According to one embodiment of the present invention, the bottom of the mixing tank is conical, and the shape of the stirring rod is adapted to the bottom of the mixing tank.
[0009] According to one embodiment of the present invention, the mixing tank has a feed inlet on its side wall and a liquid inlet on its top.
[0010] According to one embodiment of the present invention, an electromagnetic valve is provided at the connection between the mixing tank and the extraction tank.
[0011] According to one embodiment of the present invention, a heating wire is provided on the mixing tank, and the heating wire is used to heat the inside of the mixing tank.
[0012] According to one embodiment of the present invention, a conical block is provided inside the centrifuge cylinder.
[0013] According to one embodiment of the present invention, a plurality of ball bearings are provided at the bottom of the centrifuge cylinder, and a rotating groove is provided at the bottom of the extraction box, wherein the ball bearings rotate in conjunction with the rotating groove.
[0014] According to one embodiment of the present invention, the top of the extraction box is provided with a cover plate, the bottom of the cover plate is provided with an installation groove, and the top of the centrifuge cylinder is rotatably disposed in the installation groove.
[0015] According to one embodiment of the present invention, the collection box is frustum-shaped, and a liquid outlet pipe is provided at the bottom of the collection box, with a filter screen threaded inside the liquid outlet pipe.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This invention uses a first motor to drive the centrifuge drum to rotate at high speed. Under centrifugal force, the liquid in the mixture passes through the centrifuge drum wall, is blocked by the retaining ring, and falls into the collection tank. It then flows into the collection box through the leakage hole of the collection tank, while the solid residue remains inside the centrifuge drum. The conical block inside the centrifuge drum helps the mixture to be better dispersed and separated. The liquid in the collection box flows out through the bottom outlet pipe, and the filter screen in the outlet pipe can filter out any impurities that may remain.
[0018] 2. This utility model, through the combination of a stirring mechanism and a heating wire, can fully stir the mulberry leaf residue and extract, increase the temperature, accelerate the dissolution of mulberry leaf polysaccharides, and then use the high-speed rotation of a centrifuge to perform solid-liquid separation, effectively improving the extraction efficiency of mulberry leaf polysaccharides. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of a mulberry leaf polysaccharide extraction device.
[0020] Figure 2 This is a cross-sectional view of a mulberry leaf polysaccharide extraction device.
[0021] Figure 3 This is a schematic diagram of centrifuge cylinder installation.
[0022] The attached diagram is labeled as follows: 1. Mixing tank; 11. Feed inlet; 12. Liquid inlet; 2. Extraction tank; 21. Collection tank; 22. Leakage hole; 23. Rotary tank; 3. Centrifuge cylinder; 31. First motor; 32. Retaining ring; 33. Ball bearing; 4. Collection box; 41. Liquid outlet pipe; 42. Filter screen; 5. Second motor; 51. Stirring shaft; 52. Stirring rod; 6. Solenoid valve; 7. Heating wire; 8. Conical block; 9. Cover plate; 91. Mounting groove. Detailed Implementation
[0023] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.
[0024] like Figures 1 to 3 As shown, a mulberry leaf polysaccharide extraction device includes a stirring tank 1, an extraction tank 2, and an extraction mechanism. The stirring tank 1 is located on top of the extraction tank 2 and is connected to it. The stirring mechanism is installed inside the stirring tank 1 to stir the mulberry leaf residue. The extraction mechanism includes a centrifuge cylinder 3, a first motor 31, and a retaining ring 32. The first motor 31 is located at the bottom of the extraction tank 2, and its output end is connected to the centrifuge cylinder 3. The centrifuge cylinder 3 is rotatably installed inside the extraction tank 2. The retaining ring 32 is fixedly installed inside the extraction tank 2 and located outside the centrifuge cylinder 3. A collection trough 21 is provided at the bottom of the extraction tank 2. The bottom of the collection trough 21 has several drainage holes 22. The collection trough 21 is located between the retaining ring 32 and the centrifuge cylinder 3. A collection box 4 is provided at the bottom of the extraction tank 2 and is connected to the collection trough 21.
[0025] The stirring mechanism includes a second motor 5, a stirring shaft 51, and stirring rods 52. The second motor 5 is fixedly installed on the top of the stirring tank 1, and its output end is connected to the stirring shaft 51. A plurality of stirring rods 52 are provided on the stirring shaft 51.
[0026] After the second motor 5 starts, its output end drives the stirring shaft 51 to rotate, and the stirring rod 52 on the stirring shaft 51 rotates accordingly, stirring the mulberry leaf residue and extract in the stirring box 1, so that the two are fully mixed, promoting the contact between the mulberry leaf residue and the extract, accelerating the dissolution of mulberry leaf polysaccharides, and improving the extraction efficiency.
[0027] The bottom of the mixing tank 1 is conical, and the shape of the stirring rod 52 is adapted to the bottom of the mixing tank 1. The conical shape of the bottom of the mixing tank 1 and the adapted shape of the stirring rod 52 allow for better contact with the bottom during mixing, ensuring thorough mixing of the material at the bottom; this prevents material accumulation at the bottom, guarantees uniform mixing, and further improves the extraction effect.
[0028] The mixing tank 1 has a feed inlet 11 on its side wall and a liquid inlet 12 on its top. The feed inlet 11 is used to add mulberry leaf residue, and the liquid inlet 12 is used to add extract. The operator can add materials as needed.
[0029] An electromagnetic valve 6 is installed at the connection between the mixing tank 1 and the extraction tank 2. The electromagnetic valve 6 controls the connection between the mixing tank 1 and the extraction tank 2. By controlling its on / off state, it can be determined whether the mixture flows into the centrifuge cylinder 3. This facilitates control of the extraction process rhythm, allowing the mixture to enter the centrifuge cylinder 3 for separation at the appropriate time according to the stirring conditions and extraction requirements.
[0030] The mixing tank 1 is equipped with a heating wire 7, which is used to heat the interior of the mixing tank 1. When the heating wire 7 is energized, it generates heat, thereby heating the interior of the mixing tank 1 and increasing the temperature of the mixture. The increased temperature accelerates the movement of molecules, promotes the dissolution of mulberry leaf polysaccharides, and improves the extraction efficiency.
[0031] The centrifuge cylinder 3 has a conical block 8 inside. This allows the mixture to be better dispersed inside the centrifuge cylinder 3 and increases the contact area between the mixture and the wall of the centrifuge cylinder 3.
[0032] The centrifuge cylinder 3 has a plurality of ball bearings 33 at its bottom, and the extraction chamber 2 has a rotating groove 23 at its bottom. The ball bearings 33 rotate in conjunction with the rotating groove 23. The ball bearings 33 at the bottom of the centrifuge cylinder 3 rotate within the rotating groove 23 at the bottom of the extraction chamber 2, reducing the friction when the centrifuge cylinder 3 rotates.
[0033] The extraction chamber 2 is topped with a cover plate 9, and the bottom of the cover plate 9 has a mounting groove 91. The centrifuge cylinder 3 is rotatably mounted within the mounting groove 91. This rotatable mounting of the centrifuge cylinder 3 within the mounting groove 91 at the bottom of the cover plate 9 provides top support for the rotation of the centrifuge cylinder 3, enhancing its stability and preventing swaying or displacement during high-speed rotation. The cover plate 9 is detachably connected to the extraction chamber 2, facilitating the cleaning of residue inside the centrifuge cylinder 3.
[0034] The collection box 4 is frustum-shaped, and a liquid outlet pipe 41 is provided at the bottom of the collection box 4. The liquid outlet pipe 41 is internally threaded with a filter screen 42.
[0035] The collection box 4 collects the liquid flowing in from the collection tank 21. The liquid flows out through the bottom outlet pipe 41, and the filter screen 42 inside the outlet pipe 41 filters the liquid. This filters out any impurities that may remain in the liquid, improving the purity of the extract and ensuring the quality of the extracted product.
[0036] The mulberry leaf polysaccharide extraction device mainly consists of a stirring tank 1, an extraction tank 2, and an extraction mechanism. The stirring tank 1 is located on top of the extraction tank 2 and is interconnected. The stirring tank 1 contains a stirring mechanism, driven by a second motor 5 at the top, which rotates the stirring shaft 51 and stirring rod 52 to stir the mulberry leaf residue. The stirring tank 1 has a feed inlet 11 on its side wall, a liquid inlet 12 at the top, and a conical bottom that matches the shape of the stirring rod 52. A heating wire 7 is also provided on the side wall for internal heating, and an electromagnetic valve 6 is located at the connection point. The extraction mechanism includes a centrifuge cylinder 3, a first motor 31, and a retaining ring 32. The first motor 31 is located at the bottom of the extraction tank 2, and its output end is connected to the centrifuge cylinder 3. The centrifuge cylinder 3 rotates inside the extraction tank 2, and the retaining ring 32 is fixed inside the extraction tank 2 and located outside the centrifuge cylinder 3. The extraction chamber 2 has a collection trough 21 at the bottom with several drainage holes 22 located between the retaining ring 32 and the centrifuge cylinder 3. A frustum-shaped collection box 4 is also located at the bottom, communicating with the collection trough 21. A filter screen 42 is internally threaded onto the liquid outlet pipe 41 at the bottom of the collection box 4. Inside the centrifuge cylinder 3 is a conical block 8 with several ball bearings 33 at the bottom that rotatably engage with the rotating groove 23 at the bottom of the extraction chamber 2. The top cover plate 9 of the extraction chamber 2 has an installation groove 91 at its bottom, where the top of the centrifuge cylinder 3 is rotatably mounted.
[0037] The working principle of this invention is as follows: First, mulberry leaf residue is placed into the mixing tank 1 through the feed inlet 11, and the extract is added through the liquid inlet 12. The second motor 5 is started, driving the stirring shaft 51 and stirring rod 52 to stir the mulberry leaf residue and extract. At the same time, the heating wire 7 is turned on to appropriately increase the temperature inside the mixing tank 1, promoting the dissolution of mulberry leaf polysaccharides. After stirring for a period of time, the solenoid valve 6 is opened, and the mixture flows into the centrifuge cylinder 3. The first motor 31 is started, driving the centrifuge cylinder 3 to rotate at high speed. Under the action of centrifugal force, the liquid in the mixture passes through the wall of the centrifuge cylinder 3, flows into the collection box 4 through the leakage hole 22 of the collection tank 21, while the solid residue remains inside the centrifuge cylinder 3. The conical block 8 inside the centrifuge cylinder 3 helps the mixture to be better dispersed and separated. The liquid in the collection box 4 flows out through the bottom liquid outlet pipe 41, and the filter screen 42 inside the liquid outlet pipe 41 can filter out any impurities that may remain.
[0038] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.
Claims
1. A mulberry leaf polysaccharide extraction device, comprising a stirring box (1), an extraction box (2) and an extraction mechanism, wherein the stirring box (1) is disposed on the top of the extraction box (2) and connected thereto, and the stirring mechanism is disposed inside the stirring box (1) for stirring mulberry leaf residue; Its features are, The extraction mechanism includes a centrifuge cylinder (3), a first motor (31), and a retaining ring (32). The first motor (31) is located at the bottom of the extraction box (2), and its output end is connected to the centrifuge cylinder (3). The centrifuge cylinder (3) is rotatably disposed inside the extraction box (2). The retaining ring (32) is fixedly disposed inside the extraction box (2) and located outside the centrifuge cylinder (3). A collection trough (21) is provided at the bottom of the extraction box (2). Several leakage holes (22) are opened at the bottom of the collection trough (21). The collection trough (21) is located between the retaining ring (32) and the centrifuge cylinder (3). A collection box (4) is provided at the bottom of the extraction box (2). The collection box (4) is connected to the collection trough (21).
2. The mulberry leaf polysaccharide extraction device as described in claim 1, characterized in that, The stirring mechanism includes a second motor (5), a stirring shaft (51) and stirring rods (52). The second motor (5) is fixedly installed on the top of the stirring box (1), and its output end is connected to the stirring shaft (51). A plurality of stirring rods (52) are provided on the stirring shaft (51).
3. The mulberry leaf polysaccharide extraction device as described in claim 2, characterized in that, The bottom of the mixing tank (1) is conical, and the shape of the stirring rod (52) is adapted to the bottom of the mixing tank (1).
4. The mulberry leaf polysaccharide extraction device as described in claim 1, characterized in that, The mixing tank (1) has a feed inlet (11) on its side wall and a liquid inlet (12) on its top.
5. The mulberry leaf polysaccharide extraction device as described in claim 1, characterized in that, An electromagnetic valve (6) is provided at the connection between the mixing tank (1) and the extraction tank (2).
6. The mulberry leaf polysaccharide extraction device as described in claim 1, characterized in that, The mixing tank (1) is provided with a heating wire (7), which is used to heat the inside of the mixing tank (1).
7. The mulberry leaf polysaccharide extraction device as described in claim 1, characterized in that, The centrifuge tube (3) is equipped with a conical block (8) inside.
8. The mulberry leaf polysaccharide extraction device as described in claim 1, characterized in that, The centrifuge tube (3) has several ball bearings (33) at its bottom, and the extraction box (2) has a rotating groove (23) at its bottom. The ball bearings (33) and the rotating groove (23) rotate in cooperation.
9. The mulberry leaf polysaccharide extraction device as described in claim 8, characterized in that, The extraction box (2) is provided with a cover plate (9) on the top, and a mounting groove (91) is provided at the bottom of the cover plate (9). The centrifuge cylinder (3) is rotatably mounted in the mounting groove (91).
10. The mulberry leaf polysaccharide extraction device as described in claim 1, characterized in that, The collection box (4) is frustum shaped, and a liquid outlet pipe (41) is provided at the bottom of the collection box (4), with a filter screen (42) threaded inside the liquid outlet pipe (41).