Efficient pretreatment device for biomass modified polyformaldehyde material

Abstract

The utility model relates to the technical field of high polymer material processing, in particular to an efficient pretreatment device for biomass modified polyformaldehyde materials, which comprises a screening box, a screening mechanism and a smashing mechanism, the screening mechanism comprises a driving motor and a screening cylinder, and a motor groove and a rotating groove are arranged at the bottom of the screening box. The driving motor is fixedly installed in the motor groove, the rotating groove surrounds the outer side of the motor groove, the screening cylinder is fixedly installed at the output end of the driving motor, the device integrates multiple functions of screening, smashing, surface treatment and drying, one-step treatment of biomass raw materials is achieved, the overall efficiency of pretreatment is remarkably improved, and the device is suitable for popularization and application. The screening mechanism drives a screening cylinder to rotate through a driving motor, rapid screening of materials is achieved through centrifugal force, the screening efficiency is improved, the smashing mechanism adopts a smashing motor to drive a smashing cutter, the biomass raw materials are finely smashed, and it is ensured that the materials are fully smashed to the needed particle size.

Description

Technical Field

[0001] This utility model relates to the field of polymer material processing technology, specifically to a high-efficiency pretreatment device for biomass-modified polyoxymethylene materials. Background Technology

[0002] With increasing environmental awareness and continuous technological advancements, the development of novel high-performance composite materials using renewable resources such as biomass has become a research hotspot. Biomass-modified polyoxymethylene (POM), as a highly promising green polymer material, has attracted widespread attention due to its excellent mechanical properties and environmentally friendly characteristics. However, the pretreatment of biomass raw materials is particularly crucial in the preparation of this material, directly affecting the quality and performance of the final product.

[0003] Existing technologies for the pretreatment of biomass raw materials present numerous problems and challenges:

[0004] Low pretreatment efficiency: Traditional equipment often can only complete single processes such as crushing or screening, lacking overall integrated design. This decentralized processing method results in a long and inefficient pretreatment process, failing to meet the industrial production demand for efficient and rapid processing.

[0005] Inaccurate particle size control: Due to the lack of effective screening devices, traditional methods struggle to ensure that all materials achieve the required uniform particle size distribution. Inhomogeneous particle size directly impacts the quality of subsequent processing, such as blending effects and material properties.

[0006] Insufficient surface treatment: For biomass raw materials that require chemical or physical modification, traditional methods often fail to provide sufficient and uniform surface treatment. This limits the application potential of biomass raw materials in composite materials and prevents them from fully realizing their modification effects.

[0007] Unstable moisture content: Traditional pretreatment methods often lack a dedicated drying step for biomass raw materials, or the drying effect is poor. This leads to large fluctuations in the moisture content of materials entering the blending stage, seriously affecting the stability and consistency of the product. Utility Model Content

[0008] (a) Technical problems to be solved

[0009] To address the shortcomings of existing technologies, this invention provides a highly efficient pretreatment device for biomass-modified polyoxymethylene materials.

[0010] (II) Technical Solution

[0011] To achieve the above objectives, this utility model provides the following technical solution: A high-efficiency pretreatment device for biomass-modified polyoxymethylene materials includes a screening box, a screening mechanism, and a crushing mechanism. The screening mechanism includes a drive motor and a screening cylinder. The bottom of the screening box has a motor slot and a rotating slot. The drive motor is fixedly installed in the motor slot, and the rotating slot surrounds the outside of the motor slot. The screening cylinder is fixedly installed at the output end of the drive motor. The bottom of the screening cylinder is slidably connected to the rotating slot via a sliding rod. The screening cylinder has a mesh structure. A screening layer is provided between the screening cylinder and the screening box. The top of the screening box has an opening, and a cover is installed on the opening. The cover has a filling port. The crushing mechanism is installed inside the cover. The crushing mechanism includes a crushing motor and crushing blades. The inside of the cover has a motor cavity, and the crushing motor is fixedly installed inside the motor cavity. A sealing cover is installed at the opening of the motor cavity. A drive roller is installed at the output end of the crushing motor, and the drive roller penetrates the sealing cover. The crushing blades are mounted around the drive roller.

[0012] Preferably, the screening cylinder includes a base and a screening screen. The base is installed at the output end of the drive motor and is connected to the rotating groove via a sliding rod. The base is provided with a threaded groove. The lower end of the screening screen is connected to the threaded groove via a threaded structure. An inspection port is provided on one side of the screening box, and an inspection cover is installed on the inspection port by bolts.

[0013] More preferably, the bottom of the screening box is provided with an inclined structure, and a discharge port is provided on one side of the screening box. The discharge port is connected to the screening layer, and a discharge end cap is installed on the discharge port by bolts.

[0014] Preferably, the device also includes a processing box, one end of which is provided with a feed inlet. The feed inlet is connected to the discharge outlet of the screening box via a guide pipe. A screw conveyor is installed inside the processing box. A liquid guide pipe is installed on the processing box, and a liquid delivery pipe is provided on the liquid guide pipe. The liquid guide pipe is used to deliver a chemical polishing solution. Several spray nozzles are provided on the top of the processing box, and the liquid guide pipe is connected to the spray nozzles via branch pipes.

[0015] Preferably, the processing box is equipped with a hot air duct, and the processing box has several ventilation openings on its side. The hot air duct is installed on the side of the processing box and is connected to the ventilation openings through an air guide pipe. The hot air duct is equipped with an air supply pipe, and the processing box is equipped with a heat exchange port.

[0016] More preferably, one end of the treatment box is provided with a discharge pipe, and a closing valve and a drain valve are installed on the discharge pipe. The valve plate of the closing valve is a metal plate, and the valve plate of the drain valve is provided with a filter membrane.

[0017] Preferably, both the liquid guide pipe and the air guide pipe are equipped with electromagnetic valves.

[0018] Preferably, the spiral conveying device includes a spiral conveying paddle and a conveying motor. The conveying motor is installed at one end of the processing box, the spiral conveying paddle is rotatably installed inside the processing box, and the output end of the conveying motor is connected to the spiral conveying paddle.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, this utility model provides a highly efficient pretreatment device for biomass-modified polyoxymethylene materials, which has the following beneficial effects:

[0021] Improve preprocessing efficiency:

[0022] The device integrates multiple functions such as screening, crushing, surface treatment, and drying, realizing one-step processing of biomass raw materials and significantly improving the overall efficiency of pretreatment.

[0023] The screening mechanism drives the screening cylinder to rotate via a drive motor, using centrifugal force to achieve rapid screening of materials. At the same time, the slide bar design ensures the stability of the screening process and improves screening efficiency.

[0024] The crushing mechanism uses a crushing motor to drive the crushing blades, which finely crushes the biomass raw materials to ensure that the materials are fully crushed to the required particle size, providing a good raw material foundation for the subsequent blending process.

[0025] Chemical polishing and hot air drying: The processing chamber is equipped with a screw conveyor for material transfer. The chemical polishing solution in the storage tank is pumped and evenly sprayed onto the material surface through spray nozzles to complete the surface treatment. Subsequently, the hot air generated by the hot air blower accelerates the drying of the material and promotes the volatilization of chemical reaction products, ensuring the quality of the processed material.

[0026] Precise quantitative delivery

[0027] The screw conveyor ensures that the input quantity of each batch remains constant, which not only improves the consistency of the blending process, but also helps maintain the rhythm of the entire production line and improves overall production efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the assembly structure of the screening box and the processing box of this utility model;

[0029] Figure 2 This is a top view of the screening box of this utility model;

[0030] Figure 3 This is a schematic diagram of the screening cylinder and crushing mechanism of this utility model;

[0031] Figure 4 This is a bottom view of the screening cylinder and crushing mechanism of this utility model;

[0032] Figure 5 This is a side view of the screening box cover of this utility model.

[0033] Figure 6 This is a schematic cross-sectional view of the processing box of this utility model;

[0034] In the diagram: 1. Screening box; 2. Processing box; 3. Screening cylinder; 4. Base; 5. Cover; 6. Filling port; 7. Motor cavity; 8. Crushing motor; 9. Drive roller; 10. Crushing blade; 11. Slide rod; 12. Screening layer; 13. Motor slot; 14. Drive motor; 15. Rotating slot; 16. Inspection cover; 17. Discharge port; 18. Discharge end cover; 19. Guide pipe; 20. Liquid guide pipe; 21. Liquid delivery pipe; 22. Branch pipe; 23. Hot air duct; 24. Air guide pipe; 25. Air delivery pipe; 26. Heat exchange port; 27. Discharge pipe; 28. Closing valve; 29. ​​Drain valve; 30. Filter membrane; 31. Solenoid valve; 32. Conveyor motor; 33. Screw conveyor. Detailed Implementation

[0035] 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.

[0036] Please see Figure 1-6This utility model discloses a high-efficiency pretreatment device for biomass-modified polyoxymethylene materials, comprising a screening box 1, a screening mechanism, and a crushing mechanism. The screening mechanism includes a drive motor 14 and a screening cylinder 3. The bottom of the screening box 1 is provided with a motor slot 13 and a rotating slot 15. The drive motor 14 is fixedly installed in the motor slot 13, and the rotating slot 15 surrounds the outside of the motor slot 13. The screening cylinder 3 is fixedly installed at the output end of the drive motor 14. The bottom of the screening cylinder 3 is slidably connected to the rotating slot 15 through a sliding rod 11. The screening cylinder 3 has a mesh structure. A screening layer 12 is provided between the screening cylinder 3 and the screening box 1. The top of the screening box 1 has an opening, and a cover 5 is installed on the opening. The cover 5 has a filling port 6. The crushing mechanism is installed inside the cover 5. The crushing mechanism includes a crushing motor 8 and a crushing blade 10. The inside of the cover 5 has a motor cavity 7. The crushing motor 8 is fixedly installed in the motor cavity 7. A sealing cover 5 is installed at the opening of the motor cavity 7. A drive rod is installed at the output end of the crushing motor 8, and the drive rod passes through the sealing cover 5. The crushing blade 10 is mounted around the drive rod 9.

[0037] This highly efficient biomass raw material pretreatment device is designed to provide stable and consistent components for the preparation of biomass-modified polyoxymethylene materials. The entire device consists of a screening box 1, a screening mechanism, a crushing mechanism, and an additional processing box 2. All parts work together to ensure that the material, after undergoing uniform crushing, screening, surface treatment, and drying, can enter the subsequent blending stage with precisely controlled particle size and moisture content.

[0038] Working principles of various preferred technical solutions

[0039] Screening and crushing:

[0040] Screening Mechanism: The mesh-structured screening cylinder 3 is rotated by a drive motor 14, and the materials are screened under the action of centrifugal force. The sliding rod 11 at the bottom of the screening cylinder 3 is designed to slide smoothly within the rotating groove 15, ensuring the stability of the screening process.

[0041] Crushing Mechanism: The crushing motor 8, installed inside the cover 5, drives the crushing blades 10 to finely crush the added biomass raw materials. The crushing blades 10 are mounted around the drive roller 9 to ensure that the material is fully crushed to the required particle size. The cover 5 is provided with a filling port 6, through which materials can be easily added to the screening cylinder 3. When crushing the material in the screening cylinder 3, a cover plate that matches the filling port 6 can be installed on the filling port 6 to close the filling port 6.

[0042] Screening cylinder 3 design:

[0043] The screening cylinder 3 consists of a base 4 and a screening screen. The base 4 is connected to the output end of the drive motor 14 and is connected to the rotating groove 15 via a slide rod 11. The screening screen is tightly fitted to the threaded groove on the base 4 via a threaded structure. This modular design facilitates disassembly, cleaning, or replacement of screening screens of different specifications.

[0044] Material discharge and maintenance:

[0045] The bottom of the screening box 1 is equipped with an inclined structure to facilitate material flow, and a discharge port 17 with a closing valve 28 is provided on one side. In addition, an inspection port is provided, through which an inspection cover 16 can be bolted on, for easy maintenance of internal components.

[0046] Chemical polishing and hot air drying:

[0047] Processing box 2: Receives qualified materials from screening box 1, and has a built-in screw conveyor for material transfer. The liquid guide pipe 20 is connected to an external pump body via the liquid delivery pipe 21. The pump body, along with a suitable pipe, connects to a chemical polishing solution storage device. The chemical polishing solution is pumped through the pump body and evenly sprayed onto the material surface through the liquid delivery pipe 21, the liquid guide pipe 20, and the spray nozzle, completing the surface treatment.

[0048] Drying system: The hot air duct 23 is connected to an external hot air blower through the air duct 25. The hot air blower can be a mature industrial drying hot air blower. After the material is treated with the chemical polishing solution, the solenoid valve 31 on the pump body and the liquid guide pipe 20 is closed, and the solenoid valve 31 on the air guide pipe 24 is opened. At the same time, the hot air blower is turned on. The hot air generated by the hot air blower enters the interior of the processing box 2 through the hot air duct 23 and the air guide pipe 24 from the ventilation port, which accelerates the drying of the material and promotes the volatilization of chemical reaction products.

[0049] Emissions Management 27

[0050] The treated liquid is filtered out by the valve plate with filter membrane 30 on the drain valve 29 by opening the closing valve 28 and closing the drain valve 29, and discharged through the discharge pipe 27. At the same time, the design of the heat exchange port 26 helps to recover the heat generated during the process.

[0051] Automation control:

[0052] Both the liquid guide pipe 20 and the air guide pipe 24 are equipped with solenoid valves 31, which can automatically adjust the flow rate according to process requirements, improve operating efficiency and reduce energy consumption.

[0053] Screw conveyor:

[0054] The screw conveyor 33, driven by the conveyor motor 32, is responsible for quantitatively conveying the processed material from one end of the processing box 2 to the next process, ensuring that the input amount of each batch remains constant. At the same time, the closing valve 28 and the drain valve 29 are opened.

[0055] Detailed Work Process

[0056] Preparation stage: Open the filling port 6 at the top of the screening box 1 and add the biomass raw materials into the crushing mechanism.

[0057] Crushing stage: Start the crushing motor 8 and use the crushing blades 10 to initially crush the raw materials.

[0058] Screening stage: Start the drive motor 14 of the screening mechanism to make the screening cylinder 3 rotate and screen the crushed material. Unqualified large particles are trapped above the screening layer 12, and qualified small particles fall below the screening layer 12.

[0059] Surface treatment stage: Qualified materials enter the treatment box 2 through the feed pipe 19, and the chemical polishing solution evenly covers the surface of the material through the spray nozzle, thus starting the surface treatment process.

[0060] Drying stage: Start the hot air blower. Hot air enters the processing box 2 through the hot air duct 23 and the air guide duct 24 to help remove excess moisture from the material and accelerate the evaporation of chemical reaction products.

[0061] Discharge stage: After treatment is completed, open the sealing valve 28 and the drain valve 29 on the discharge pipe 27 to safely discharge the waste liquid.

[0062] Conveying stage: Finally, start the screw conveyor to quantitatively transport the processed biomass modified components to the subsequent blending stage.

[0063] When it is necessary to clean the screening cylinder 3, the inspection cover 16 on the inspection port can be opened, the screening cylinder 3 can be rotated, the screening cylinder 3 can be disassembled from the base 4, and taken out from the inspection port for cleaning.

[0064] This device integrates multiple functions, which not only improves the efficiency of biomass raw material pretreatment, but also ensures the consistency and stability of the final product quality, making it suitable for application in large-scale industrial production environments.

[0065] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency pretreatment device for biomass-modified polyoxymethylene materials, characterized in that, The system includes a screening box (1), a screening mechanism, and a crushing mechanism. The screening mechanism includes a drive motor (14) and a screening cylinder (3). The bottom of the screening box (1) is provided with a motor slot (13) and a rotating slot (15). The drive motor (14) is fixedly installed in the motor slot (13), and the rotating slot (15) surrounds the outside of the motor slot (13). The screening cylinder (3) is fixedly installed at the output end of the drive motor (14). The bottom of the screening cylinder (3) is slidably connected to the rotating slot (15) through a slide rod (11). The screening cylinder (3) has a mesh structure. A screening mechanism is provided between the screening cylinder (3) and the screening box (1). Layer (12), the top of the screening box (1) is provided with an opening, a cover (5) is installed on the opening, a filling port (6) is provided on the cover (5), the crushing mechanism is installed inside the cover (5), the crushing mechanism includes a crushing motor (8) and a crushing blade (10), a motor cavity (7) is provided inside the cover (5), the crushing motor (8) is fixedly installed in the motor cavity (7), a sealing cover (5) is installed at the opening of the motor cavity (7), a drive rod is installed at the output end of the crushing motor (8), and the drive rod passes through the sealing cover (5), and the crushing blade (10) is mounted around the drive rod (9).

2. The high-efficiency pretreatment device for biomass-modified polyoxymethylene materials according to claim 1, characterized in that, The screening cylinder (3) includes a base (4) and a screening screen. The base (4) is installed at the output end of the drive motor (14), and the base (4) is connected to the rotating groove (15) through a slide rod (11). The base (4) is provided with a threaded groove. The lower end of the screening screen is connected to the threaded groove through a threaded structure. The screening box (1) is provided with an inspection port on one side, and the inspection port is fitted with an inspection cover (16) by bolts.

3. The high-efficiency pretreatment device for biomass-modified polyoxymethylene materials according to claim 2, characterized in that, The bottom of the screening box (1) is provided with an inclined structure, and a discharge port (17) is provided on one side of the screening box (1). The discharge port (17) is connected to the screening layer (12), and a discharge end cap (18) is installed on the discharge port (17) by bolts.

4. The high-efficiency pretreatment device for biomass-modified polyoxymethylene materials according to claim 3, characterized in that, It also includes a processing box (2), one end of which is provided with a feed inlet. The feed inlet is connected to the discharge port (17) of the screening box (1) through a guide pipe (19). A screw conveyor is installed inside the processing box (2). A liquid guide pipe (20) is installed on the processing box (2). A liquid delivery pipe (21) is provided on the liquid guide pipe (20). The liquid guide pipe (20) is used to transport chemical polishing solution. Several spray nozzles are provided on the top of the processing box (2). The liquid guide pipe (20) is connected to the spray nozzles through a branch pipe (22).

5. The high-efficiency pretreatment device for biomass-modified polyoxymethylene materials according to claim 4, characterized in that, The processing box (2) is equipped with a hot air duct (23). Several ventilation openings are provided on the side of the processing box (2). The hot air duct (23) is installed on the side of the processing box (2). The hot air duct (23) is connected to the ventilation openings through the air guide pipe (24). An air supply pipe (25) is provided on the hot air duct (23). A heat exchange port (26) is provided on the processing box (2).

6. The high-efficiency pretreatment device for biomass-modified polyoxymethylene materials according to claim 5, characterized in that, One end of the treatment box (2) is provided with a discharge pipe (27), and a closing valve (28) and a drain valve (29) are installed on the discharge pipe (27). The valve plate of the closing valve (28) is a metal plate, and the valve plate of the drain valve (29) is provided with a filter membrane (30).

7. The high-efficiency pretreatment device for biomass-modified polyoxymethylene materials according to claim 6, characterized in that, Solenoid valves (31) are installed on both the liquid guide pipe (20) and the air guide pipe (24).

8. The high-efficiency pretreatment device for biomass-modified polyoxymethylene materials according to claim 7, characterized in that, The spiral conveying device includes a spiral conveying paddle (33) and a conveying motor (32). The conveying motor (32) is installed at one end of the processing box (2). The spiral conveying paddle (33) is rotatably installed inside the processing box (2), and the output end of the conveying motor (32) is connected to the spiral conveying paddle (33).

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