Continuous filtering device in stevioside production

By designing a continuous filtration device and utilizing a multi-layer filtration structure and a telescopic spring, the problem of incomplete impurity removal in existing steviol glycoside production has been solved, achieving a highly efficient filtration effect and improving the purity of steviol glycosides.

CN223788166UActive Publication Date: 2026-01-13SHANDONG KELIJIAN STEVIA PROD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520205076.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-01-13
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

Existing filtration devices for steviol glycoside production are inefficient and fail to effectively remove impurities, resulting in poor filtration performance.

Method used

A continuous filtration device comprising a filter tank, an upper filter bucket, a middle filter plate, and a lower filter bucket was designed. It achieves layer-by-layer filtration by utilizing the cooperation of a telescopic spring and a support base, and facilitates disassembly and cleaning of the device by adapting the annular threaded groove to the threaded plate.

Benefits of technology

This technology enables continuous, layer-by-layer filtration of steviol glycosides, improving impurity removal efficiency, enhancing the functionality and practicality of the device, and ensuring the purity of steviol glycosides.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223788166U_ABST
    Figure CN223788166U_ABST
Patent Text Reader

Abstract

The utility model discloses a continuous filtering device in stevioside production, which comprises a filtering tank body, an annular thread groove is arranged on the upper surface of the filtering tank body, a feed hopper is arranged above the filtering tank body, and the bottom surface of the feed hopper is fixedly connected with an annular thread plate. According to the device, the filtering tank body, the upper-layer filtering hopper, the middle-layer filtering plate and the lower-layer filtering hopper are arranged, the upper-layer filtering hopper, the middle-layer filtering plate and the lower-layer filtering hopper are matched, the resilience force of a telescopic spring is utilized, a mounting cylinder and a supporting seat are used, and the impact force of stevioside falling and the resilience force of the telescopic spring are matched; according to the stevioside filtering device, the secondary filtering effect of the middle-layer filtering plate on stevioside can be improved, in addition, the lower-layer filtering hopper is combined, impurities in the stevioside can be cleaned up to the maximum extent, meanwhile, the upper-layer filtering hopper, the middle-layer filtering plate and the lower-layer filtering hopper can be conveniently replaced, and the functionality and practicability of the stevioside filtering device are improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of steviol glycosides, and in particular to a continuous filtration device for the production of steviol glycosides. Background Technology

[0002] Stevia glycosides are a natural sweetener extracted from the stevia plant, a member of the Asteraceae family. They are characterized by high sweetness and low calories. As a natural sweetener, stevia glycosides have been widely used in the food and beverage industry, especially under the trend of healthy eating, and have become a sweetener alternative that more and more brands are exploring.

[0003] Currently, steviol glycosides are gradually being accepted by people in daily life. However, because steviol glycosides are extracted during production, they contain a lot of impurities. At present, filtration of steviol glycosides requires the use of filtration devices, but existing filtration devices are basically single-layer filtration, which greatly reduces the filtration effect. Therefore, we propose a continuous filtration device for steviol glycoside production to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a continuous filtration device for the production of steviol glycosides, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A continuous filtration device for steviol glycoside production includes a filter tank. An annular threaded groove is formed on the upper surface of the filter tank. A feed hopper is located above the filter tank. An annular threaded plate is fixedly connected to the bottom surface of the feed hopper. An upper filter hopper is fixedly connected to the bottom surface of the feed hopper. A set of mounting cylinders is fixedly connected to the inner wall of the filter tank. A set of telescopic springs is fixedly connected to the inner bottom wall of each mounting cylinder. A middle filter plate is placed at the top of the set of telescopic springs. A set of support seats is fixedly connected to the inner wall of the filter tank. A lower filter hopper is placed on top of the set of support seats.

[0007] In a further embodiment, a set of T-shaped support legs are fixedly connected to the bottom surface of the filter tank, and each T-shaped support leg has anti-slip texture on its bottom surface.

[0008] In a further embodiment, an observation window, which is made of tempered glass, is fixedly embedded on the outer surface of the filter tank.

[0009] In a further embodiment, a set of handles is fixedly connected to the outer surface of the filter tank, and the annular threaded plate is adapted to the annular threaded groove.

[0010] In a further embodiment, a discharge valve is fixedly installed on the bottom surface of the filter tank, and the outer surface of the middle filter plate is in contact with the inner wall of the filter tank.

[0011] In a further embodiment, a connecting block is fixedly connected to the bottom surface of each mounting cylinder, and the outer surface of each connecting block is fixedly connected to the inner wall of the filter tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This device is equipped with a filter tank, an upper filter bucket, a middle filter plate, and a lower filter bucket. By utilizing the cooperation of the upper filter bucket, the middle filter plate, and the lower filter bucket, it is possible to continuously filter steviol glycosides layer by layer, avoiding the occurrence of impurities inside. In addition, the annular threaded groove is compatible with the annular threaded plate, which makes it easy to replace and disassemble the upper filter bucket, and also makes it easy to clean the impurities inside the upper filter bucket.

[0014] 2. This device, equipped with an installation cylinder, telescopic spring, and support base, utilizes the rebound force of the telescopic spring, along with the impact force of the falling steviol glycosides and the rebound force of the telescopic spring. This enhances the secondary filtration effect of the middle filter plate on steviol glycosides. Furthermore, combined with the lower filter bucket, it maximizes the removal of impurities from the inside of the steviol glycosides. It also allows for easy replacement of the upper, middle, and lower filter buckets, increasing the functionality and practicality of the equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the filter tank in a continuous filtration device for steviol glycoside production.

[0016] Figure 2 This is a sectional view of the front view of the filter tank in a continuous filtration device for steviol glycoside production.

[0017] Figure 3 This is a top view of the filter tank in a continuous filtration unit for steviol glycoside production.

[0018] Figure 4 This is a bottom view of the filter tank in a continuous filtration unit for steviol glycoside production.

[0019] In the diagram: 1. Filter tank; 2. Annular threaded groove; 3. Feed hopper; 4. Annular threaded plate; 5. Upper filter hopper; 6. Mounting cylinder; 7. Telescopic spring; 8. Middle filter plate; 9. Support base; 10. Lower filter hopper; 11. T-shaped support leg; 12. Handle; 13. Observation window; 14. Discharge valve; 15. Connecting block. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] 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.

[0023] Please see Figure 1-4This utility model discloses a continuous filtration device for steviol glycoside production, comprising a filter tank 1, an annular threaded groove 2 on the upper surface of the filter tank 1, a feed hopper 3 above the filter tank 1, an annular threaded plate 4 fixedly connected to the bottom surface of the feed hopper 3, an upper filter hopper 5 fixedly connected to the bottom surface of the feed hopper 3, a set of mounting cylinders 6 fixedly connected to the inner wall of the filter tank 1, a set of telescopic springs 7 fixedly connected to the inner bottom wall of each mounting cylinder 6, a middle filter plate 8 placed at the top of the set of telescopic springs 7, a set of support seats 9 fixedly connected to the inner wall of the filter tank 1, and a lower filter hopper 10 placed on top of the set of support seats 9. The combination of the upper filter hopper 5, the middle filter plate 8, and the lower filter hopper 10 facilitates... The system performs continuous, layer-by-layer filtration of steviol glycosides to prevent residual impurities. The annular threaded groove 2 is compatible with the annular threaded plate 4, facilitating easy replacement and disassembly of the upper filter hopper 5 and cleaning of its interior. Utilizing the rebound force of the telescopic spring 7, along with the mounting cylinder 6 and support base 9, and the impact force of the falling steviol glycosides, the secondary filtration effect of the middle filter plate 8 on the steviol glycosides is enhanced. Combined with the lower filter hopper 10, this maximizes the removal of impurities from the steviol glycosides. Furthermore, the system allows for easy replacement of the upper filter hopper 5, middle filter plate 8, and lower filter hopper 10, increasing the functionality and practicality of the equipment.

[0024] A set of T-shaped support legs 11 are fixedly connected to the bottom surface of the filter tank 1. Each T-shaped support leg 11 has anti-slip texture on its bottom surface. The T-shaped support legs 11 and anti-slip texture can support and stabilize the equipment. An observation window 13 is fixedly embedded on the outer surface of the filter tank 1. The observation window 13 is made of tempered glass. The observation window 13 can be used to easily observe the filtration process. A set of handles 12 are fixedly connected to the outer surface of the filter tank 1. The annular threaded plate 4 is adapted to the annular threaded groove 2. The handles 12 can be used to easily move the equipment.

[0025] A discharge valve 14 is fixedly installed on the bottom surface of the filter tank 1. The outer surface of the middle filter plate 8 is in contact with the inner wall of the filter tank 1. The discharge valve 14 can be used to conveniently discharge the filtered steviol glycosides from the filter tank 1. A connecting block 15 is fixedly connected to the bottom surface of each mounting cylinder 6. The outer surface of each connecting block 15 is fixedly connected to the inner wall of the filter tank 1. The connecting block 15 can improve the support force of the mounting cylinder 6.

[0026] The working principle of this utility model is as follows:

[0027] First, use handle 12 to move it to the place of use, connect the electrical components to the power supply, and place the lower filter hopper 10 on the support base 9. At the same time, place the middle filter plate 8 on the telescopic spring 7. Then, rotate the feed hopper 3 to install the annular threaded plate 4 and the annular threaded groove 2, and complete the installation of the upper filter hopper 5. If it is necessary to filter steviol glycosides, insert the guide tube into the feed hopper 3. At the same time, the upper filter hopper 5 performs the first step of filtration. Then, the falling impact force of steviol glycosides, combined with the rebound force of the telescopic spring 7, enables the middle filter plate 8 to perform the second step of filtration, and the lower filter hopper 10 can perform the third step of filtration. Finally, the transfer pipe can be connected to the discharge valve 14 to guide it to the dispensing area. The above is the complete usage process of this utility model.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A continuous filtration device for the production of steviol glycosides, characterized in that: The filter includes a filter tank (1), the upper surface of which is provided with an annular threaded groove (2), a feed hopper (3) is provided above the filter tank (1), an annular threaded plate (4) is fixedly connected to the bottom surface of the feed hopper (3), an upper filter hopper (5) is fixedly connected to the bottom surface of the feed hopper (3), a set of mounting cylinders (6) is fixedly connected to the inner side wall of the filter tank (1), a set of telescopic springs (7) is fixedly connected to the inner bottom wall of each mounting cylinder (6), a middle filter plate (8) is placed at the top of the set of telescopic springs (7), a set of support seats (9) is fixedly connected to the inner side wall of the filter tank (1), and a lower filter hopper (10) is placed on the top of the set of support seats (9).

2. The continuous filtration device for steviol glycoside production according to claim 1, characterized in that: The bottom surface of the filter tank (1) is fixedly connected to a set of T-shaped support legs (11), and the bottom surface of each T-shaped support leg (11) is provided with anti-slip texture.

3. The continuous filtration device for steviol glycoside production according to claim 1, characterized in that: The outer surface of the filter tank (1) is fixedly inlaid with an observation window (13), which is made of tempered glass.

4. The continuous filtration device for steviol glycoside production according to claim 1, characterized in that: A set of handles (12) is fixedly connected to the outer surface of the filter tank (1), and the annular threaded plate (4) is adapted to the annular threaded groove (2).

5. The continuous filtration device for steviol glycoside production according to claim 1, characterized in that: A discharge valve (14) is fixedly installed on the bottom surface of the filter tank (1), and the outer surface of the middle filter plate (8) is in contact with the inner wall of the filter tank (1).

6. The continuous filtration device for steviol glycoside production according to claim 1, characterized in that: Each of the mounting cylinders (6) has a connecting block (15) fixedly connected to its bottom surface, and the outer surface of each connecting block (15) is fixedly connected to the inner wall of the filter tank (1).