Multistage filtering system for plateau plant extracting solution
By combining a three-stage filtration system and multiple secondary filtration systems with a backwashing circuit, the complexity and high maintenance costs caused by the independent pipeline setup of filter cartridges in existing devices are solved. This achieves efficient filtration and simplified cleaning, improving the purity of the extract and the quality of the product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-03
AI Technical Summary
Existing multi-stage filtration devices for plateau plant extracts have problems such as complex equipment, high maintenance costs, and difficult cleaning because reusable backwashing filter cartridges and non-backwashing filter cartridges need to be set up with separate independent pipelines.
The system employs a three-stage filtration assembly and multiple secondary filtration assemblies, combined with a backwashing circuit assembly. Multi-stage filtration of the extract is achieved through a water pump and a multi-layer composite filter, and efficient cleaning of the filter element is achieved through the control of the backwashing valve and the water pump inlet valve.
It improves the filtration efficiency and purity of the extract, reduces equipment operating costs, simplifies the equipment structure, extends the service life and cleaning convenience of the filter element, and ensures the safety and stability of the product.
Smart Images

Figure CN224071422U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plateau plant extract filtration technology, and in particular to a multi-stage filtration system for plateau plant extract. Background Technology
[0002] In modern biopharmaceutical, cosmetic research and development, and fine chemical industries, plateau plant extracts are highly sought after due to their unique bioactive components. However, plateau plant extracts are often mixed with various impurities such as plant proteins, colloids, tannins, starch, fibrous cells, sugars, and salts, which seriously affect the quality of the extract and subsequent processing steps. In order to obtain high-purity, high-quality extracts, multi-stage filtration has become a key step.
[0003] Currently, most multi-stage filtration devices for plateau plant extracts on the market use a series connection of multi-stage filtration components. While this design can achieve step-by-step filtration to a certain extent, it also brings many drawbacks. Reusable backwashable filter cartridges require special backwashing pipelines and operations to ensure cartridge regeneration and continuous high-efficiency filtration, while non-backwashable cartridges only require simple unidirectional filtration pipelines. This means that in a multi-stage filtration system, to meet the different needs of the two types of cartridges, their pipelines must be separated and set up independently. As a result, the pipeline layout of the entire filtration device becomes intricate and complex, which not only increases the manufacturing difficulty and cost of the equipment, but also greatly increases the complexity of equipment installation and commissioning, as well as the operating cost of the equipment. Utility Model Content
[0004] In order to overcome the problems of existing multi-stage filtration devices for plateau plant extracts, which are usually connected in series and require separate pipelines between reusable backwash filter cartridges and non-backwashable filter cartridges, resulting in complex overall equipment, high maintenance costs, and difficulties in disassembly, cleaning, and replacement, this utility model provides a multi-stage filtration system for plateau plant extracts.
[0005] The technical solution is as follows: A multi-stage filtration system for plateau plant extract includes a three-stage filtration assembly, a backwash circuit assembly, a water pump, and multiple secondary filtration components; a water pump is installed in front of the three-stage filtration assembly; multiple secondary filtration components are installed on one side of the water pump; a backwash circuit assembly is installed between the three-stage filtration assembly and the water pump; the backwash circuit assembly includes a filter valve, a backwash valve, a hydraulic gauge, an inlet pipe, a backwash return pipe, a purification pipeline, and a water pump inlet valve.
[0006] Furthermore, the three-stage filtration assembly consists of three sets of backwash filters arranged horizontally, connected end to end; a hydraulic gauge is installed at the upper front of the three-stage filtration assembly; filter valves and backwash valves are respectively installed on both sides of the upper end of the hydraulic gauge, and the lower ends of the filter valves and backwash valves are connected to the upper end of the hydraulic gauge.
[0007] Furthermore, the upper end of the filter valve is provided with an inlet pipe, and the inlet pipe is connected to the filter valve; the upper end of the backwash valve is provided with a backwash return pipe, and the backwash return pipe is connected to the backwash valve.
[0008] Furthermore, purification pipelines and water pump inlet valves are respectively installed on both sides of the water pump; the purification pipelines are connected to the output end of the water pump, one end of the purification pipelines is connected to the pipelines of the three-stage filter components, and the purification pipelines are connected to the backwash return pipeline.
[0009] Furthermore, the two ends of the water pump inlet valve are respectively connected to the water pump inlet end and the lower port pipeline of the multiple secondary filtration components.
[0010] Furthermore, the upper port of the multiple secondary filtration components is connected to the lower port of the hydraulic gauge via pipeline.
[0011] Furthermore, the multiple secondary filtration components include a secondary filter and a multi-layer composite filter; the secondary filter is internally equipped with a multi-layer composite filter.
[0012] The beneficial effects are as follows: This utility model introduces plateau plant extract through an inlet pipe. After passing through a filter valve, the extract passes through a hydraulic gauge. At this time, the backwash valve is closed. After the hydraulic gauge measures the hydraulic pressure, the extract enters a multi-stage secondary filtration assembly. The multi-layer composite filtration of the secondary filtration assembly performs the first filtration of the extract. The filtered extract then passes through a water pump inlet valve. The extract is drawn and pressurized by the water pump and pumped along the purification pipeline into the interior of a tertiary filtration assembly for a third filtration process. This effectively improves the filtration effect of the extract, significantly reduces large particulate impurities in the extract, and increases the purity of the extract, thereby improving the processing effect of subsequent processing steps and improving the processing quality.
[0013] By setting up backwash valves and water pump inlet valves, when the equipment needs backwashing, the backwash valves and filter valves are opened and the water pump inlet valve is closed. Clean water is then introduced from the purification drain pipe of the three-stage filter assembly. The introduced clean water washes away the impurities filtered inside the three-stage filter assembly. After backwashing, the internal filter element of the three-stage filter assembly is cleaned, which improves the service life of the three-stage filter assembly and reduces the operating cost. Wastewater flows into the backwash valve from the backwash return pipe. Because the water pump inlet valve is closed, there is no flow path at both ends of the multiple secondary filter assembly. As a result, the wastewater is discharged directly to the outside through the inlet pipe after passing through the hydraulic gauge, which effectively improves the cleaning convenience of the three-stage filter assembly.
[0014] The system employs a multi-stage secondary filtration system, consisting of composite filter elements. PP cotton is used for preliminary filtration, removing large particulate impurities and suspended solids from the extract. Activated carbon primarily adsorbs odors, organic pollutants, and pigments from the extract. In the preliminary filtration stage, it removes large particulate impurities and suspended solids, providing excellent pretreatment for subsequent fine filtration and concentration processes. During intermediate filtration, it further removes colloids, pigments, microorganisms, and other impurities, improving the purity and quality of the extract. In the production of products with high extract quality requirements, such as highland plant extracts, oral liquids, and injections, it ensures product safety and stability. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the overall rear-view three-dimensional structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the overall bottom-view three-dimensional structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the overall rear-view three-dimensional structure of this utility model;
[0019] Figure 5 This is a three-dimensional structural diagram of the three-stage filtration assembly of this utility model;
[0020] Figure 6 This is a cross-sectional perspective view of the three-dimensional structure of the multi-stage secondary filtration component of this utility model.
[0021] In the attached diagram, the following are the reference numerals: 1. Three-stage filtration assembly; 2. Water pump; 3. Multiple secondary filtration assembly; 4. Backwash circuit assembly; 301. Secondary filter; 302. Multi-layer composite filter; 401. Filter valve; 402. Backwash valve; 403. Hydraulic gauge; 404. Inlet pipe; 405. Backwash return pipe; 406. Purification pipeline; 407. Water pump inlet valve. Detailed Implementation
[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0023] Example 1
[0024] like Figures 1-5As shown, a multi-stage filtration system for plateau plant extract includes a three-stage filtration assembly 1, a backwash circuit assembly 4, a water pump 2, and a multiple secondary filtration assembly 3. The water pump 2 is located in front of the three-stage filtration assembly 1. The multiple secondary filtration assembly 3 is located on one side of the water pump 2. The backwash circuit assembly 4 is located between the three-stage filtration assembly 1 and the water pump 2. The backwash circuit assembly 4 includes a filter valve 401, a backwash valve 402, a hydraulic gauge 403, a water inlet pipe 404, a backwash return pipe 405, a purification pipeline 406, and a water pump inlet valve 407.
[0025] The three-stage filtration assembly 1 consists of three sets of backwash filters arranged horizontally, connected end to end. A hydraulic gauge 403 is installed at the upper front end of the three-stage filtration assembly 1. Filter valves 401 and backwash valves 402 are respectively installed on both sides of the upper end of the hydraulic gauge 403, and the lower ends of filter valves 401 and backwash valves 402 are connected to the upper end of the hydraulic gauge 403.
[0026] The upper end of the filter valve 401 is provided with an inlet pipe 404, and the inlet pipe 404 is connected to the filter valve 401; the upper end of the backwash valve 402 is provided with a backwash return pipe 405, and the backwash return pipe 405 is connected to the backwash valve 402.
[0027] Purification pipe 406 and water pump inlet valve 407 are respectively installed on both sides of water pump 2; purification pipe 406 is connected to the output end of water pump 2, one end of purification pipe 406 is connected to the pipe of three-stage filter component 1, and purification pipe 406 is connected to the backwash return pipe 405.
[0028] The two ends of the water pump inlet valve 407 are respectively connected to the water inlet end of the water pump 2 and the lower port pipeline of the multiple secondary filter assembly 3.
[0029] The upper port of the multiple secondary filtration component 3 is connected to the lower port of the hydraulic gauge 403 via a pipeline.
[0030] The plateau plant extract is introduced through the inlet pipe 404. After passing through the filter valve 401, the extract passes through the hydraulic gauge 403. At this time, the backwash valve 402 is closed. After the hydraulic pressure is measured by the hydraulic gauge 403, the extract enters the multi-stage secondary filtration assembly 3. The multi-layer composite filter 302 of the multi-stage secondary filtration assembly 3 performs the first filtration of the extract. The filtered extract passes through the water pump inlet valve 407. The extract is then drawn and pressurized by the water pump 2 and pumped into the interior of the tertiary filtration assembly 1 through the purification pipeline 406 for a third filtration process. This effectively improves the filtration effect of the extract, significantly reduces large particulate impurities in the extract, and increases the purity of the extract, thereby improving the processing effect of subsequent processing steps and improving the processing quality.
[0031] With the backwash valve 402 and the water pump inlet valve 407 in place, when the equipment needs backwashing, the backwash valve 402 and the filter valve 401 are opened and the water pump inlet valve 407 is closed. Clean water is then introduced from the purification drain pipe of the three-stage filter assembly 1. The introduced clean water washes away the impurities filtered inside the three-stage filter assembly 1. After backwashing, the internal filter element of the three-stage filter assembly 1 is cleaned, which improves the service life of the three-stage filter assembly 1 and reduces the operating cost. The sewage flows into the backwash valve 402 from the backwash return pipe 405. Since the water pump inlet valve 407 is closed, there is no flow passage at both ends of the multiple secondary filter assembly 3. As a result, the sewage is discharged directly to the outside through the inlet pipe 404 after passing through the hydraulic gauge 403, thereby effectively improving the cleaning convenience of the three-stage filter assembly 1.
[0032] Example 2
[0033] Based on Example 1, such as Figures 1-5 As shown, the multi-stage secondary filtration assembly 3 includes a secondary filter 301 and a multi-layer composite filter 302; the secondary filter 301 is internally provided with the multi-layer composite filter 302.
[0034] The multi-stage secondary filtration component 3 is a composite filter element. PP cotton is used for preliminary filtration to remove large particulate impurities and suspended solids from the extract. Activated carbon mainly adsorbs odors, organic pollutants, and pigments from the extract. In the preliminary filtration stage, it removes large particulate impurities and suspended solids, providing good pretreatment for subsequent fine filtration and concentration processes. In the intermediate filtration process, it further removes colloids, pigments, microorganisms, and other impurities, improving the purity and quality of the extract. In the production of products with high requirements for extract quality, such as plateau plant extracts, oral liquids, and injections, it ensures the safety and stability of the products.
Claims
1. A high altitude plant extract multi-stage filtration system comprising a three-stage filtration assembly (1), a backwash circuit assembly (4), characterized in that: The water pump (2), the multiple secondary filter assembly (3), the water pump (2) is arranged in front of the three-stage filter assembly (1), one side of the water pump (2) is provided with the multiple secondary filter assembly (3), the backwashing circuit assembly (4) is arranged between the three-stage filter assembly (1) and the water pump (2), the backwashing circuit assembly (4) comprises the filter valve (401), the backwashing valve (402), the hydraulic gauge (403), the water inlet pipe (404), the backwashing return pipe (405), the purification pipeline (406) and the water pump water inlet valve (407).
2. The multi-stage filtration system for high altitude plant extract of claim 1, wherein: The three-stage filter assembly (1) is composed of three groups of backwashing filters arranged horizontally in series; the upper end of the three-stage filter assembly (1) is provided with the hydraulic gauge (403); the upper end of the hydraulic gauge (403) is provided with the filter valve (401) and the backwashing valve (402) on both sides, and the lower ends of the filter valve (401) and the backwashing valve (402) are in communication with the upper end of the hydraulic gauge (403).
3. The multi-stage filtration system for high altitude plant extract of claim 2, wherein: The upper end of the filter valve (401) is provided with the water inlet pipe (404), and the water inlet pipe (404) is in communication with the filter valve (401); the upper end of the backwashing valve (402) is provided with the backwashing return pipe (405), and the backwashing return pipe (405) is in communication with the backwashing valve (402).
4. The multi-stage filtration system for high altitude plant extract of claim 1, wherein: The two sides of the water pump (2) are respectively provided with the purification pipeline (406) and the water pump water inlet valve (407); the purification pipeline (406) is in communication with the output end of the water pump (2), one end of the purification pipeline (406) is in communication with the pipeline of the three-stage filter assembly (1), and the purification pipeline (406) is in communication with the backwashing return pipe (405).
5. The multi-stage filtration system for high altitude plant extract of claim 4, wherein: The two ends of the water pump water inlet valve (407) are respectively connected with the water inlet end of the water pump (2) and the lower end of the multiple secondary filter assembly (3).
6. The multi-stage filtration system for high altitude plant extract of claim 2, wherein: The upper end of the multiple secondary filter assembly (3) is connected with the lower end of the hydraulic gauge (403).
7. The multi-stage filtration system for high altitude plant extract of claim 1, wherein: The multiple secondary filter assembly (3) comprises the secondary filter (301) and the multi-layer composite filter (302); the multi-layer composite filter (302) is arranged in the secondary filter (301).