Filtering device for extracting ginkgo biloba leaves

Abstract

The utility model discloses a kind of filtering devices for ginkgo leaf extraction, belong to extract production technical field, the device includes base, base is fixed with cylinder, cylinder is equipped with cylinder cover, first filter part is equipped in cylinder, stirring part is equipped in first filter part, second filter part is equipped outside first filter part.The utility model's advantage lies in: first filter part is equipped with primary filter space, second filter part and first filter part are enclosed to form secondary filter space, through twice filtration, ginkgo leaf can be effectively excluded in stirring and be stirred broken impurity, and then the quality of ginkgo leaf extract extraction is improved.

Description

Technical Field

[0001] This utility model relates to the field of extract production technology, specifically to a filtration device for extracting ginkgo leaves. Background Technology

[0002] In the industrial production of ginkgo leaf extract, a stirring and filtration process is commonly used to promote full contact between the ginkgo leaf raw material and the extraction solution, enhance their compatibility, and thus improve extraction efficiency. Specifically, the mixture of ginkgo leaves and the extraction solution is first stirred using a stirring device. After the target components in the ginkgo leaves are fully dissolved, subsequent filtration and separation operations are carried out to effectively separate the extract from the solid residue.

[0003] However, this traditional process has significant technical drawbacks. During the stirring stage, the stirring paddle of the stirring device needs to rotate at high speed inside the filter chamber. While promoting the uniform dispersion of ginkgo leaf raw materials and accelerating the dissolution process, it also generates strong mechanical shearing forces on the ginkgo leaves near the stirring paddle, causing some ginkgo leaves to be broken into fibrous fragments or fine particulate impurities. These impurities are small in size and are difficult to completely retain in subsequent filtration stages. They are easily discharged through the filter pores along with the extraction solution, which not only affects the purity of the extract but may also cause local blockage of the filter pores, thus significantly reducing the efficiency of the filtration process and adversely affecting the quality control of ginkgo leaf extract production. Utility Model Content

[0004] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a filtration device for extracting ginkgo leaves, thereby solving the problem in the prior art where the stirring device shears the ginkgo leaves, causing broken impurities to be filtered out with the solution, thus affecting the filtration effect.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a filtration device for extracting ginkgo leaves, comprising: a cylindrical body, the cylindrical body being fixed on a base, a cover being provided on the top of the cylindrical body, a first filtration section being provided inside the cylindrical body, a stirring section extending into the first filtration section being provided on the cover, and a second filtration section being provided outside the first filtration section; wherein, a primary filtration space is provided inside the first filtration section, and a secondary filtration space is formed between the second filtration section and the first filtration section.

[0006] Optionally, the first filter section is a cylindrical structure that runs vertically through the base. The first filter section has several evenly distributed primary filter holes. A bottom cover is fixed to one end of the first filter section near the base, and a slag discharge door is hinged to the bottom cover.

[0007] Optionally, the first filter part is fitted with a collar, and a base plate is fixed outside the collar. Several circumferentially distributed fixing rods are fixed on the base plate. The end of the fixing rod away from the base plate is connected by a fixing ring, and the second filter part is bound to the fixing rod by a strap.

[0008] Optionally, the second filter section is made of a flexible, water-permeable, and air-permeable material.

[0009] Optionally, a final filtration space is formed between the second filtration section and the inner wall of the cylinder, and a discharge section is provided on the cylinder, the discharge section extending into the final filtration space.

[0010] Optionally, the cylinder cover is provided with a water inlet and a material inlet, and the water inlet and the material inlet are respectively connected to the primary filtration space.

[0011] Optionally, a threaded cylinder is fixed on the cylinder cover, a threaded seat is fixed on the base, and a screwing component is rotatably connected to the threaded seat, with the screwing component and the threaded cylinder being threadedly connected.

[0012] Optionally, it also includes a collection section, which is provided corresponding to the slag discharge gate, and the collection section has a slag discharge section.

[0013] Optionally, the cylinder cover is provided with a driving part, the output shaft of the driving part passes through the cylinder cover and is fixedly connected to the stirring part.

[0014] Optionally, a cylinder is rotatably connected to the base, and the output shaft of the cylinder is rotatably connected to the slag discharge gate.

[0015] The beneficial effects of this utility model are as follows: The cylindrical body of this invention has a first filtration section and a second filtration section fitted outside the first filtration section. The first filtration section has a primary filtration space, and the second and first filtration sections together form a secondary filtration space. Through the gradient interception design of the above-mentioned dual filtration, the primary filtration space can initially intercept larger particulate impurities in the mixed solution, and then the secondary filtration space can further intercept the fine ginkgo leaf fragments remaining in the solution after primary filtration. This achieves layered filtration and deep purification of impurities, effectively preventing impurities from being discharged through the filter holes with the extract solution. This ensures the purity and quality of the final filtered solution, reduces the risk of local clogging of the filter holes, and significantly improves the operational stability and overall efficiency of the filtration process.

[0016] Meanwhile, the stirring unit of this invention is located at the top of the device. During use, it does not directly contact the ginkgo leaf fragments. Instead, it stirs the solution, creating a stable vortex. This vortex acts evenly on the ginkgo leaf fragments within it, ensuring thorough contact and efficient mixing between the ginkgo leaves and the extraction solution. This non-contact stirring design enhances the compatibility between the ginkgo leaves and the extraction solution, ensuring extraction efficiency, while fundamentally avoiding mechanical shearing forces exerted by the stirring unit on the ginkgo leaves. This significantly reduces the generation of fine impurities during stirring, controlling impurity content at the source. The stirring method, combined with the dual filtration structure, works synergistically to further guarantee the quality of the extracted solution, providing stable and reliable technical support for the industrial production of ginkgo leaf extract. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of a filtration device for extracting ginkgo leaves according to the present invention.

[0019] Figure 2 This is an overall cross-sectional view of a filtration device for extracting ginkgo leaves according to this utility model.

[0020] Figure 3 This is a partial three-dimensional view of a filtration device for extracting ginkgo leaves according to the present invention. Figure 1 .

[0021] Figure 4 This is a partial three-dimensional view of a filtration device for extracting ginkgo leaves according to the present invention. Figure 2 .

[0022] Figure 5 This is a partial three-dimensional view of a filtration device for extracting ginkgo leaves according to the present invention. Figure 3 .

[0023] Figure 6 This is a partial exploded view of a filtration device for extracting ginkgo leaves according to the present invention.

[0024] Figure 7 This is an overall side view of a filtration device for extracting ginkgo leaves according to this utility model.

[0025] Explanation of reference numerals in the attached figures: 1. Cylinder body; 11. Discharge section; 2. Cylinder cover; 21. Water inlet; 22. Feed inlet; 23. Threaded cylinder; 3. Base; 31. Threaded seat; 32. Tightening component; 33. Cylinder; 4. First filter section; 41. Bottom cover; 42. Slag discharge door; 5. Second filter section; 51. Fixing rod; 52. Fixing ring; 53. Bottom plate; 54. Collar; 6. Stirring section; 61. Drive section; 7. Collection section; 71. Slag discharge section. Detailed Implementation

[0026] 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.

[0027] As mentioned earlier, the drawback of traditional filtration devices is that during the stirring stage, the stirring paddle needs to rotate at high speed inside the filter chamber. While this promotes the uniform dispersion of ginkgo leaf raw materials and accelerates the dissolution process, it also generates strong mechanical shearing forces on the ginkgo leaves near the stirring paddle. This causes some ginkgo leaves to be broken into fibrous fragments or fine particulate impurities. These impurities are small in size and are difficult to completely retain in subsequent filtration stages. They are easily discharged through the filter pores along with the extraction solution, which not only affects the purity of the extract but may also cause local blockage of the filter pores, thus significantly reducing the efficiency of the filtration process and adversely affecting the quality control of ginkgo leaf extract production.

[0028] To address this issue, this invention provides a filtration device applied to the production of ginkgo leaf extract. Through a double-layer filtration system, it effectively filters impurities from the crushed ginkgo leaves, ultimately ensuring the quality of the ginkgo leaf extract. This invention achieves its solution through the following methods.

[0029] Example 1: Please refer to the instruction manual. This embodiment provides a filtration device for extracting ginkgo leaves, which includes, as follows: Figure 1 The base 3 shown is fixed to a supporting surface (e.g., the ground) by four legs. Adjacent legs are connected by crossbeams. The four crossbeams and four legs together form a discharge space. A collection section 7 is provided in the discharge space, and the collection section 7 has a slag discharge section 71. A first through hole (not shown in the figure) is opened on the top end face of the base 3, and a cylinder 1 is also fixed on the base 3. The cylinder 1 is a cylindrical structure that runs vertically through the base. Its bottom end (i.e., the end closest to the base 3) is fixed in the first through hole, and a cylinder cover 2 is provided on its top end.

[0030] like Figures 2 to 3 As shown, in this embodiment, a first filter section 4 is provided inside the cylinder 1. The first filter section 4 is also arranged in a cylindrical shape that runs vertically through the cylinder. Its bottom is fixed in the first through hole. Several evenly distributed filter holes are opened around the first filter section 4. The cylinder of the first filter section 4 has a primary filtration space.

[0031] like Figure 4 As shown, in this embodiment, a bottom cover 41 is fixed at the bottom through-hole (i.e., inside the first through hole) of the first filter section 4. The bottom cover 41 forms a seal with the cylinder 1 through a silicone sealing gasket. Two slag discharge ports are provided on the bottom cover 41, and slag discharge doors 42 are hinged to both of these ports. The slag discharge doors 42 are also provided with silicone sealing gaskets to complete the seal when they are closed inside the slag discharge ports. Two cylinders 33 are hinged to the crossbeam. The output end of the cylinders 33 is rotatably connected to the slag discharge doors 42. The opening and closing of the slag discharge doors 42 are controlled by the extension and retraction of the cylinders 33.

[0032] like Figures 5 to 6 As shown, in this embodiment, the first filter section 4 is fitted with a collar 54, and a base plate 53 is fixed on the collar 54. A plurality of circumferentially distributed fixing rods 51 are fixed on the base plate 53, and the top ends of the fixing rods 51 are connected by fixing rings 52. The second filter section 5 is disposed between the fixing rods 51 and the first filter section 4.

[0033] The second filter section 5 is made of a flexible, breathable, and water-permeable material, such as non-woven fabric, which allows the extract solution to pass through while intercepting fine ginkgo leaf impurities. The second filter section 5 is provided with several straps, which are used to secure it to the fixing ring 52. A secondary filtration space is formed between the second filter section 5 and the first filter section 4, and a final filtration space is formed between the second filter section 5 and the inner wall of the cylinder 1.

[0034] like Figure 2 As shown, in this first embodiment, the cylinder cover 2 is provided with a drive unit 61 (e.g., a motor), and the output shaft of the drive unit 61 is provided with a stirring unit 6, which is located in the primary filtration space. A discharge unit 11 is provided on the side wall of the cylinder body 1, and the discharge unit 11 has a valve and connects to the final filtration space. The cylinder cover 2 is also provided with a water inlet 21 and a material inlet 22, both of which extend into the primary filtration space.

[0035] Therefore, in the specific implementation of this embodiment, the solution and ginkgo leaves are first added to the primary filtration space through the water inlet 21 and the feed inlet 22, respectively. The solution and ginkgo leaves are mixed in the primary filtration space and stirred by the stirring part 6, thereby forming an extract solution and waste residue. The waste residue remains in the primary filtration space, while the extract solution (and some fibers and small impurities) enters the secondary filtration space through the filter holes on the first filter part 4. In the secondary filtration space, some fibers and small impurities are trapped, while the extract solution passes through the second filter part 5 and enters the final filtration space, and is finally discharged with the discharge part 11. The filtration is then completed. The waste residue remaining in the primary filtration space is discharged through the slag discharge door 42 driven by the cylinder 33 and collected in the collection part 7.

[0036] Example 2: Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides an embodiment two. For example... Figure 2 As shown, in this second embodiment, the stirring section 6 is located in the primary filtration space and at the top of the primary filtration space. When the ginkgo leaf raw material is added through the feed section 22, its maximum addition line should be lower than the bottom of the stirring section 6. When the solution is added through the water inlet section 21, its maximum addition line should be higher than the bottom of the stirring section 6 and lower than the top surface of the first filtration section 4.

[0037] Therefore, in the specific implementation of this embodiment 2, the driving unit 61 drives the stirring unit 6 to rotate. During the rotation of the stirring unit 6, the solution flows and forms a vortex. When the vortex acts on the ginkgo leaf raw material, it drives it to flow in the solution and then fully contact the solution to mix and form ginkgo leaf extract.

[0038] Example 3: Based on the above embodiments, in order to provide a clearer and more complete explanation of the technical solutions therein, this utility model also provides Embodiment Three. For example... Figure 1 , Figure 7 As shown, in this embodiment 3, a threaded seat 31 is fixed on the base 3, a screwing component 32 is rotatably connected to the threaded seat 31, a threaded cylinder 23 is fixed on the cylinder cover 2, and the screwing component 32 and the threaded cylinder 23 are threadedly connected.

[0039] The screw-on component 32 is equipped with a handwheel. By rotating the handwheel, the screw-on component 32 can be rotated, which in turn drives the threaded cylinder 23 to move under the action of the threaded connection, thereby changing the position of the cylinder cover 2. When the cylinder cover 2 is screwed away from the cylinder body 1, rotating the cylinder cover 2 can open the internal environment of the cylinder body 1, thereby cleaning the inside.

[0040] Therefore, in summary, compared with the prior art, this utility model has the following advantages, including but not limited to: The cylindrical body 1 of this invention has a first filter section 4 and a second filter section 5 sleeved outside the first filter section 4. The first filter section 4 has a primary filtration space, and the second filter section 5 and the first filter section 4 together form a secondary filtration space. Through the gradient interception design of the above-mentioned dual filtration, the primary filtration space can first intercept larger particulate impurities in the mixed solution, and then the secondary filtration space can further intercept the fine ginkgo leaf fragments remaining in the solution after primary filtration. This achieves layered filtration and deep purification of impurities, effectively preventing impurities from being discharged through the filter holes with the extracted solution. This ensures the purity and quality of the final filtered solution, reduces the risk of local blockage of the filter holes, and significantly improves the operational stability and overall efficiency of the filtration process.

[0041] Meanwhile, the stirring unit 6 of this invention is located at the top of the entire device. During use, it does not directly contact the ginkgo leaf fragments, but rather stirs the solution to create a stable vortex. This vortex acts evenly on the ginkgo leaf fragments within it during its flow, ensuring thorough contact and efficient mixing between the ginkgo leaves and the extraction solution. This non-contact stirring design enhances the compatibility between the ginkgo leaves and the extraction solution, ensuring extraction efficiency, and fundamentally avoids mechanical shearing forces exerted by the stirring unit 6 on the ginkgo leaves, significantly reducing the generation of fine impurities during stirring and controlling impurity content at the source. The stirring method, combined with the dual filtration structure, works synergistically to further guarantee the quality of the extracted extract, providing stable and reliable technical support for the industrial production of ginkgo leaf extract.

[0042] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A filtration device for extracting ginkgo leaves, characterized in that, include: A cylindrical body (1) is fixed on a base (3). A cover (2) is provided on the top of the cylindrical body (1). A first filter section (4) is provided inside the cylindrical body (1). A stirring section (6) extending into the first filter section (4) is provided on the cover (2). A second filter section (5) is provided on the outer sleeve of the first filter section (4). The first filter section (4) has a primary filtration space, and the second filter section (5) and the first filter section (4) together form a secondary filtration space.

2. The filtration device for extracting ginkgo leaves as described in claim 1, characterized in that, The first filter section (4) is a cylindrical structure that runs vertically through the bottom. The first filter section (4) has several evenly distributed primary filter holes. A bottom cover (41) is fixed to one end of the first filter section (4) near the base (3). A slag discharge door (42) is hinged to the bottom cover (41).

3. The filtration device for extracting ginkgo leaves as described in claim 1, characterized in that, The first filter part (4) is fitted with a collar (54), and a base plate (53) is fixed to the outside of the collar (54). Several circumferentially distributed fixing rods (51) are fixed on the base plate (53). The end of the fixing rod (51) away from the base plate (53) is connected by a fixing ring (52). The second filter part (5) is bound to the fixing rod (51) by a strap.

4. The filtration device for extracting ginkgo leaves as described in claim 1, characterized in that, The second filter section (5) is made of a flexible, water-permeable and air-permeable material.

5. The filtration device for extracting ginkgo leaves as described in claim 1, characterized in that, The second filter section (5) forms a final filtration space between itself and the inner wall of the cylinder (1). The cylinder (1) is provided with a discharge section (11), which extends into the final filtration space.

6. The filtration device for extracting ginkgo leaves as described in claim 1, characterized in that, The cylinder cover (2) is provided with a water inlet (21) and a material inlet (22), and the water inlet (21) and the material inlet (22) are respectively connected to the primary filtration space.

7. The filtration device for extracting ginkgo leaves as described in claim 1, characterized in that, A threaded cylinder (23) is fixed on the cap (2), and a threaded seat (31) is fixed on the base (3). A screwing component (32) is rotatably connected to the threaded seat (31), and the screwing component (32) and the threaded cylinder (23) are threadedly connected.

8. The filtration device for extracting ginkgo leaves as described in claim 2, characterized in that, It also includes a collection section (7), which is provided corresponding to the slag discharge gate (42), and the collection section (7) has a slag discharge section (71).

9. The filtration device for extracting ginkgo leaves as described in claim 1, characterized in that, The cylinder cover (2) is provided with a drive unit (61), the output shaft of the drive unit (61) passes through the cylinder cover (2) and is fixedly connected to the stirring unit (6).

10. A filtration device for extracting ginkgo leaves as described in claim 2, characterized in that, A cylinder (33) is rotatably connected to the base (3), and the output shaft of the cylinder (33) is rotatably connected to the slag discharge gate (42).

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