Xanthan gum glue liquid filtering device

Abstract

The utility model relates to xanthan gum production field relates to a kind of xanthan gum glue liquid filtering device, the utility model includes: shell, stirring subassembly, stainless steel filter screen and elastic scraper subassembly, the stainless steel filter screen is set in shell interior, the shell interior is equipped with filter chamber before filtering and filter chamber after filtering, the shell is equipped with feed inlet, discharge port and slagging port, glue liquid enters filter chamber before filtering from feed inlet, after flowing into filter chamber after filtering and being discharged from discharge port after stainless steel filter screen, the stirring subassembly is installed in shell top and stirring shaft is located in shell interior, the elastic scraper subassembly is spaced apart and set on stirring shaft, and elastic scraper subassembly rotation will impurity in stainless steel filter screen inner wall be scraped off to slagging port, the overall structure of the application is simple, reasonable in design, can realize continuous work, not easy to block, and work efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of xanthan gum production, and specifically to a xanthan gum liquid filtration device. Background Technology

[0002] Xanthan gum is a multiphase complex system formed during the metabolic processes of microorganisms, comprising solid, liquid, and colloidal phases. These phases consist of insoluble metabolites, culture medium residues, soluble products, inorganic salts, and extracellular polysaccharides, respectively. The molecular structure of xanthan gum is primarily composed of pentasaccharide repeating units, exhibiting both double-helix secondary and tertiary network structures, resulting in relatively high viscosity.

[0003] The production steps of xanthan gum include: pre-culturing, inoculation, fermentation, extraction, drying, pulverization, and packaging. Currently, production involves directly mixing xanthan gum solution with alcohol for extraction. This process cannot guarantee that the solution is free of visible impurities, and traditional basket filters are not efficient at filtering high-viscosity xanthan gum solutions and are prone to clogging, requiring shutdown for cleaning. Utility Model Content

[0004] This invention provides a xanthan gum filtration device to address the problems of existing technologies.

[0005] The objective of this utility model can be achieved through the following technical solution: A xanthan gum filtrate filtration device includes: a shell, a stirring assembly, a stainless steel filter screen, and an elastic scraper assembly. The stainless steel filter screen is disposed inside the shell. The shell is provided with a pre-filtration chamber and a post-filtration chamber. The shell is provided with an inlet, an outlet, and a slag discharge port. The filtrate enters the pre-filtration chamber from the inlet, flows into the post-filtration chamber after passing through the stainless steel filter screen, and is discharged from the outlet. The stirring assembly is installed on the top of the shell, and the stirring shaft is located inside the shell. The elastic scraper assembly is spaced apart on the stirring shaft. The rotation of the elastic scraper assembly scrapes impurities from the inner wall of the stainless steel filter screen to the slag discharge port.

[0006] In a further improvement, the stirring assembly also includes a stirring motor, which is mounted on the top of the housing and its output end is connected to the stirring shaft. The elastic scraper assembly is symmetrically arranged in two sets and includes a long scraper, a fixed rod, a sliding rod, and a buffer spring. The fixed rod is fixed to the stirring shaft at intervals, and a limiting seat is provided at the outer end of the fixed rod. The sliding rod is slidably disposed within the fixed rod and the limiting seat, and its end is connected to the long scraper. The limiting seat restricts the sliding rod from slipping out. The outer side of the long scraper is closely attached to the stainless steel filter screen. The buffer spring is sleeved on the sliding rod, and the end of the buffer spring is fixedly connected to the limiting seat and the long scraper.

[0007] As a further improvement, a feed valve is provided on the feed inlet, a discharge valve is provided on the discharge outlet, and a slag discharge valve is provided on the slag discharge outlet.

[0008] As a further improvement, a PLC automatic control module is provided on the right side of the outer casing. The PLC automatic control module is electrically connected to the feed valve, discharge valve, slag discharge valve and stirring motor.

[0009] As a further improvement, a pressure gauge is provided on one side of the housing, and the pressure gauge is electrically connected to the PLC automatic control module.

[0010] Compared with the prior art, the beneficial effects of this xanthan gum filtration device are as follows: The dynamic scraping action of the elastic scraper assembly can remove impurities from the filter screen surface in real time, preventing the accumulation of impurities and the formation of a dense filter cake. This fundamentally solves the clogging problem when filtering high-viscosity adhesives, eliminating the need for downtime cleaning like traditional basket filters and ensuring the continuity of the xanthan gum production process. The rotation of the stirring assembly not only provides power to the scraper but also plays a certain role in stirring and dispersing the adhesive in the pre-filter chamber, reducing the local viscosity of the adhesive and assisting the adhesive to flow to the filter screen. The overall structure of this application is simple and reasonably designed, enabling continuous operation, reducing clogging, and achieving high working efficiency. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of the present invention. Figure 2 for Figure 1 Schematic diagram of the enlarged part Figure 3 for Figure 2 Schematic diagram of the enlarged part In the diagram, 1-outer shell, 11-pre-filter chamber, 12-post-filter chamber, 13-feed inlet, 131-feed valve, 14-discharge port, 141-discharge valve, 15-slag discharge port, 151-slag discharge valve, 2-stirring assembly, 21-stirring shaft, 22-stirring motor, 3-stainless steel filter screen, 4-elastic scraper assembly, 41-long scraper, 42-fixed rod, 43-sliding rod, 44-buffer spring, 45-limit seat, 5-PLC automatic control module, 6-pressure gauge. Detailed Implementation

[0012] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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; unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to fixed connections or detachable connections, etc. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0013] The following is a description of the embodiments and appendices. Figures 1-3 The technical solution of this utility model will be further described below.

[0014] Example 1 A xanthan gum filtrate filtration device includes: a housing 1, a stirring assembly 2, a stainless steel filter screen 3, and an elastic scraper assembly 4. The stainless steel filter screen 3 is disposed inside the housing 1. The housing 1 has a pre-filtration chamber 11 and a post-filtration chamber 12. The housing 1 has an inlet 13, an outlet 14, and a slag discharge port 15. The filtrate enters the pre-filtration chamber 11 from the inlet 13, flows through the stainless steel filter screen 3 into the post-filtration chamber 12, and is discharged from the outlet 14. The stirring assembly 2 is installed on the top of the housing 1, and the stirring shaft 21 is located inside the housing 1. The elastic scraper assembly 4 is spaced apart on the stirring shaft 21. The rotation of the elastic scraper assembly 4 scrapes impurities from the inner wall of the stainless steel filter screen 3 to the slag discharge port 15.

[0015] like Figures 1-3 As shown, the working principle of this utility model is as follows: The stainless steel filter screen inside the outer shell divides the interior into a pre-filtration chamber and a post-filtration chamber, forming a unidirectional filtration channel. After the xanthan gum solution enters the pre-filtration chamber through the inlet, the liquid and colloidal phases in the solution can pass through the pores of the stainless steel filter screen into the post-filtration chamber due to the pressure difference between the inside and outside of the chamber. Visible impurities are intercepted by the filter screen and remain on the inner wall of the filter screen in the pre-filtration chamber. The stirring motor of the stirring assembly installed at the top of the outer shell drives the stirring shaft to rotate inside the outer shell, while the elastic scraper assemblies, fixed at intervals on the stirring shaft, rotate synchronously with the stirring shaft. Because the outer side of the elastic scraper assembly is in close contact with the inner wall of the stainless steel filter screen, it continuously scrapes off the solid impurities adhering to the inner wall of the filter screen during rotation. The scraped-off impurities settle to the bottom of the outer shell due to gravity and are finally discharged through the slag discharge port, achieving real-time cleaning of the filter screen.

[0016] The dynamic scraping action of the elastic scraper assembly can remove impurities from the filter screen surface in real time, preventing the accumulation of impurities and the formation of a dense filter cake. This fundamentally solves the clogging problem when filtering high-viscosity adhesives, eliminating the need for shutdown cleaning like traditional basket filters and ensuring the continuity of the xanthan gum production process. The rotation of the stirring assembly not only provides power to the scraper but also plays a certain role in stirring and dispersing the adhesive in the pre-filter chamber, reducing the local viscosity of the adhesive, assisting the adhesive to flow to the filter screen, further improving filtration efficiency, and enhancing adaptability.

[0017] As a further preferred embodiment, the stirring assembly 2 further includes a stirring motor 22, which is mounted on the top of the housing 1 and its output end is connected to the stirring shaft 21. The elastic scraper assembly 4 is symmetrically arranged in two sets and includes a long scraper 41, a fixed rod 42, a sliding rod 43, and a buffer spring 44. The fixed rod 42 is fixed at intervals on the stirring shaft 21, and a limiting seat 45 is provided at the outer end of the fixed rod 42. The sliding rod 43 is slidably disposed within the fixed rod 42 and the limiting seat 45 and its end is connected to the long scraper 41. The limiting seat 45 restricts the sliding rod 43 from slipping. The outer side of the long scraper 41 is closely attached to the stainless steel filter screen 3. The buffer spring 44 is sleeved on the sliding rod 43, and the end of the buffer spring 44 is fixedly connected to the limiting seat 45 and the long scraper 41.

[0018] The limiting seat eliminates the risk of slippage of the sliding rod, ensuring that the elastic scraper assembly does not become loose or damaged during long-term rotation; the symmetrically arranged two sets of scrapers improve the coverage of impurity removal; the elastic buffering effect of the buffer spring effectively solves the problem of traditional rigid scrapers easily scratching the filter screen, reducing the replacement cost of the filter screen due to physical damage; the long strip structure of the long row of scrapers can scrape off a larger area of ​​impurities in a single rotation, and with the stable rotation of the stirring shaft, the cleaning efficiency is even higher.

[0019] As a further preferred embodiment, the feed inlet 13 is provided with a feed valve 131, the discharge outlet 14 is provided with a discharge valve 141, and the slag discharge outlet 15 is provided with a slag discharge valve 151. The opening and closing of the valve core controls the opening and closing of the corresponding channels. When the feed valve is open, xanthan gum solution can enter the pre-filter chamber; when the discharge valve is open, the clean solution in the post-filter chamber can be discharged to the next stage; when the slag discharge valve is open, impurities at the bottom of the pre-filter chamber can be discharged through the slag discharge outlet.

[0020] As a further preferred embodiment, a PLC automatic control module 5 is provided on the right side of the outer casing 1. The PLC automatic control module 5 is electrically connected to the feed valve 131, the discharge valve 141, the slag discharge valve 151 and the stirring motor 22. A pressure gauge 6 is provided on one side of the outer casing 1. The pressure gauge 6 is electrically connected to the PLC automatic control module 5.

[0021] The PLC module can receive external input signals, pressure monitoring signals from pressure gauges, and manually set control parameters; it can also send commands to each actuator (valve, motor) according to preset programs or real-time signals to control the opening and closing status of valves and the start, stop, and speed of the stirring motor.

[0022] The filtration steps of this application are as follows: (1) Feeding: Turn on the stirring motor and open the feed valve; (2) Feeding: Adjust the feed flow rate to 20-300 m³ / h according to the production speed, and the xanthan gum liquid enters the pre-filter chamber from the feed port; (3) Filtration: The xanthan gum liquid is pressed onto the stainless steel filter screen by the long scraper. The xanthan gum liquid without impurities enters the post-filter chamber through the stainless steel filter screen, and the impurities remain on the stainless steel filter screen; (4) Slag discharge: When the pressure gauge pressure reaches 0.3-0.5 MPa or rises significantly, the fully automatic PLC control system controls the automatic opening and closing of the discharge valve. After maintaining the slag discharge for 3 seconds, the slag discharge valve is automatically closed. During the operation of this device, the feed valve is always kept open to achieve continuous impurity removal.

[0023] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A xanthan gum solution filtration device, characterized in that, include: The system comprises a housing, a stirring assembly, a stainless steel filter screen, and an elastic scraper assembly. The stainless steel filter screen is disposed inside the housing, which has a pre-filtration chamber and a post-filtration chamber. The housing has an inlet, an outlet, and a slag discharge port. The adhesive enters the pre-filtration chamber through the inlet, flows through the stainless steel filter screen into the post-filtration chamber, and is discharged from the outlet. The stirring assembly is installed on the top of the housing, with the stirring shaft located inside the housing. The elastic scraper assembly is spaced apart on the stirring shaft, and its rotation scrapes impurities from the inner wall of the stainless steel filter screen to the slag discharge port.

2. The xanthan gum solution filtration device according to claim 1, characterized in that, The stirring assembly also includes a stirring motor, which is mounted on the top of the housing and its output end is connected to the stirring shaft. The elastic scraper assembly has two sets symmetrically arranged and includes a long scraper, a fixed rod, a sliding rod, and a buffer spring. The fixed rod is fixed to the stirring shaft at intervals, and a limiting seat is provided at the outer end of the fixed rod. The sliding rod is slidably disposed within the fixed rod and the limiting seat, and its end is connected to the long scraper. The limiting seat restricts the sliding rod from slipping out. The outer side of the long scraper is closely attached to the stainless steel filter screen. The buffer spring is sleeved on the sliding rod, and its end is fixedly connected to the limiting seat and the long scraper.

3. The xanthan gum solution filtration device according to claim 1, characterized in that, The feed inlet is equipped with a feed valve, the discharge outlet is equipped with a discharge valve, and the slag discharge outlet is equipped with a slag discharge valve.

4. The xanthan gum solution filtration device according to claim 1, characterized in that, The right side of the outer casing is equipped with a PLC automatic control module, which is electrically connected to the feed valve, discharge valve, slag discharge valve and stirring motor.

5. A xanthan gum filtration device according to claim 4, characterized in that, A pressure gauge is provided on one side of the housing, and the pressure gauge is electrically connected to the PLC automatic control module.

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