Wool fiber grafted chitosan reaction device

Abstract

The utility model relates to a wool fiber grafting chitosan reaction device which comprises a device support, the device support comprises an outer side container with an opening in the upper side, an inner side container with an opening in the upper side is rotationally assembled at the bottom of the outer side container, and a rotating sleeve rotationally matched with the bottom of the outer side container is arranged at the bottom of the inner side container. A water passing hole is formed in the container wall of the inner side container, a water inlet is formed in the top of the outer side container, a water outlet is formed in the bottom of the outer side container, a stirring shaft is rotationally assembled at the bottom of the inner side container, the lower end of the stirring shaft penetrates out of the lower side of the rotating sleeve, and a first motor in transmission connection with the penetrating-out end of the stirring shaft is arranged at the bottom of the outer side container. A second motor in transmission connection with the rotating sleeve is further arranged at the bottom of the outer side container. The device solves the technical problem that in the prior art, after the reaction time of wool and an oxidizing agent is up, the wool and the oxidizing agent cannot be rapidly separated.

Description

Technical Field

[0001] This utility model relates to wool modification processing equipment, and more particularly to a reaction device for grafting chitosan onto wool fibers. Background Technology

[0002] Dual catalytic grafting is an advanced chemical modification technique that typically involves grafting functional molecules (such as chitosan or antibacterial agents) onto the surface of natural fibers (such as wool and cotton) or synthetic fibers to enhance their properties, such as antibacterial activity, durability, or water resistance. In the context of wool and chitosan, this process is often used to firmly graft chitosan molecules onto wool fibers, thereby endowing them with long-lasting antibacterial properties.

[0003] "Dual catalytic grafting" typically involves the synergistic effect of two catalysts to introduce functional molecules onto the fiber surface through a chemical reaction. Its core steps include:

[0004] 1. Activate the fiber surface: Activate the chemical groups on the fiber surface (such as hydroxyl-OH or amino-NH2 in wool) using a first catalyst (such as oxidant H2O2), making it easier for them to react with grafted molecules;

[0005] 2. Grafting reaction: With the assistance of a second catalyst (such as an acidic catalyst), functional molecules (such as chitosan) are covalently bonded to the fiber surface, thereby forming a stable chemical connection.

[0006] Utilizing dual catalysis, two catalysts accelerate the activation and grafting steps respectively, ensuring efficient reaction and a uniform grafted layer. During production trials, it was found that in the first step of the dual-catalytic grafting process—activating the fiber surface using the first catalyst—improper control of the oxidant's reaction time is crucial. For example, if the oxidant reacts with the wool for too long, it leads to keratin degradation in the wool, affecting the feel. In existing technologies, once the wool and oxidant have reacted for the required time, rapid separation of the wool and oxidant is not achieved, easily resulting in some wool fibers being oxidized for too long. Utility Model Content

[0007] The purpose of this invention is to provide a reaction device for grafting chitosan onto wool fibers, in order to solve the technical problem in the prior art that wool and oxidant cannot be quickly separated after the reaction time has elapsed.

[0008] To solve the above-mentioned technical problems, the technical solution of the wool fiber grafted chitosan reaction device of this utility model is as follows:

[0009] A wool fiber grafted chitosan reaction device includes a device support, which includes an outer container with an upper opening. An inner container with an upper opening is rotatably mounted on the bottom of the outer container. The bottom of the inner container has a rotating sleeve that rotatably engages with the bottom of the outer container. The inner container has a water passage hole on its wall. The top of the outer container has a water inlet, and the bottom of the outer container has a water outlet. A stirring shaft is rotatably mounted on the bottom of the inner container. The lower end of the stirring shaft passes through the lower side of the rotating sleeve. A first motor is provided at the bottom of the outer container and is drivenly connected to the through end of the stirring shaft. A second motor is also provided at the bottom of the outer container and is drivenly connected to the rotating sleeve.

[0010] Furthermore, both the first motor and the second motor are self-locking motors equipped with a holding brake.

[0011] Furthermore, a stirring shaft gear is fixed on the protruding end of the stirring shaft, and a first motor shaft gear that meshes with the stirring shaft gear is fixed on the motor shaft of the first motor. The diameter of the first motor shaft gear is larger than the diameter of the stirring shaft gear.

[0012] Furthermore, a sleeve gear is fixed on the rotating sleeve, and a second motor shaft gear, which is connected to the sleeve gear, is fixed on the motor shaft of the second motor. The diameter of the second motor shaft gear is smaller than that of the sleeve gear.

[0013] Furthermore, the stirring shaft gear is located below the sleeve gear, and the diameter of the stirring shaft gear is larger than the diameter of the sleeve gear.

[0014] Furthermore, the outer container includes a first container wall and a first container bottom plate disposed at the bottom of the first container wall, the device support includes bottom plate legs disposed at the bottom of the first container bottom plate, the first motor and the second motor are disposed in the space enclosed by the bottom plate legs, and the motor housings of the first motor and the second motor are fixed to the bottom of the first container bottom plate.

[0015] Furthermore, the inlet is located at the upper end of the first container wall, and the outlet is located at the lower end of the first container wall.

[0016] Furthermore, the inner container includes a second container wall and a second container bottom plate disposed at the bottom of the second container wall, the rotating sleeve is fixed to the bottom of the second container bottom plate, and water passage holes are distributed on the second container wall and the second container bottom plate.

[0017] Furthermore, the top of the outer container is provided with an outer container cover that can be opened and closed; the top of the inner container is provided with an inner container cover that can be opened and closed.

[0018] The beneficial effects of this utility model are as follows: When using this utility model, wool fibers are placed in the inner container, and water is added to the outer container through the water inlet. The water enters the inner container through the water passage, and the wool fibers in the inner container are also immersed in the water. An oxidant is added to the water to activate the surface of the wool fibers. During this process, the first motor drives the stirring shaft to rotate, which is conducive to more uniform contact between the oxidant and the wool fibers. When the wool fibers have been oxidized for the required time, the water outlet is opened, and the water is discharged through the water outlet. At this time, the second motor rotates the inner container by rotating the sleeve. Due to centrifugal force, the water in the wool fibers can be quickly shaken out. The shaken water flows into the outer container through the water passage and is finally discharged through the water outlet. The wool fibers are quickly dried, realizing the rapid separation of the oxidant from the wool fibers and avoiding the technical problem of wool keratin degradation caused by the oxidant contacting the wool fibers for too long. Attached Figure Description

[0019] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding portions, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;

[0021] Figure 2 yes Figure 1 Enlarged view of point A in the image;

[0022] 1. Outer container; 2. First container wall; 3. First container bottom plate; 4. Water passage hole; 5. Inner container; 6. First motor; 7. Bottom plate support leg; 8. First motor shaft gear; 9. Stirring shaft gear; 10. Stirring shaft; 11. Sleeve gear; 12. Second motor shaft gear; 13. Second motor; 14. Stirring blade; 15. Rotating sleeve; 16. Second container bottom plate; 17. Second container wall; 18. Outer container cover plate; 19. Inner container cover plate; 20. Water inlet; 21. Water outlet. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0024] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0025] An example of an embodiment of the wool fiber-grafted chitosan reaction device of this utility model is shown below. Figures 1-2 As shown: The device includes a support frame, which includes an outer container 1 with an upper opening. The upper end of the outer container is provided with an outer container cover 18 that can be opened and closed. The outer container includes a first container wall 2 and a first container bottom plate 3 located at the bottom of the first container wall 2. One side of the outer container cover 18 is hinged to the upper end of the first container wall 2.

[0026] The bottom of the outer container is rotatably fitted with an inner container 5 with an upper opening. The inner container 5 includes a second container wall 17 and a second container bottom plate 16 disposed at the bottom of the second container wall 17. The top of the second container wall is provided with an inner container cover 19 that can be opened and closed. One side of the inner container cover 19 is hinged to the upper end of the second container wall.

[0027] A rotating sleeve 15 is fixed coaxially to the bottom of the second container bottom plate 16. The rotating sleeve 15 is rotatably engaged with the first container bottom plate 3 through a bearing. The lower end of the rotating sleeve 15 protrudes from the lower side of the first container bottom plate 3. A sealing ring is provided between the rotating sleeve and the first container bottom plate.

[0028] The inner container has a water passage hole 4 on its container wall, the outer container has a water inlet 20 on its top and a water outlet 21 on its bottom. Specifically, the water passage hole 4 is distributed on the second container wall 17 and the second container bottom plate 16, the water inlet 20 is located at the upper end of the first container wall 2, and the water outlet 21 is located at the bottom of the first container wall 2.

[0029] A stirring shaft 10 is rotatably mounted on the bottom of the inner container via a bearing. The stirring shaft is coaxial with the rotating sleeve 15. A sealing ring is provided between the bottom plate 16 of the second container and the stirring shaft 10. The upper end of the stirring shaft 10 is provided with stirring blades 14 located inside the inner container. The lower end of the stirring shaft 10 passes through the lower side of the rotating sleeve. A first motor 6 is provided at the bottom of the outer container, which is driven by the end of the stirring shaft. A second motor 13 is also provided at the bottom of the outer container, which is driven by the rotating sleeve.

[0030] In this embodiment, both the first motor 6 and the second motor 13 are self-locking motors with a holding brake device that can achieve self-locking. Self-locking motors are existing technology, and their specific structure will not be described in detail.

[0031] In this embodiment, a stirring shaft gear 9 is fixed to the protruding end of the stirring shaft. A first motor shaft gear 8, which meshes with the stirring shaft gear, is fixed to the motor shaft of the first motor. The diameter of the first motor shaft gear 8 is larger than the diameter of the stirring shaft gear 9. A sleeve gear 11 is fixed to the rotating sleeve 15. A second motor shaft gear 12, which is connected to the sleeve gear, is fixed to the motor shaft of the second motor. The diameter of the second motor shaft gear 12 is smaller than the diameter of the sleeve gear 11. The stirring shaft gear 9 is located below the sleeve gear 11, and its diameter is larger than that of the sleeve gear.

[0032] The device support includes bottom plate legs 7 disposed at the bottom of the first container bottom plate, a first motor 6 and a second motor 13 disposed in the space enclosed by the bottom plate legs, and the motor housings of the first motor and the second motor are fixed to the bottom of the first container bottom plate.

[0033] In use, open both the outer and inner container covers, place the wool fibers in the inner container, and inject water into the inner container and between the inner and outer containers through the inlet. Add the oxidant, lock the second motor, and the second motor drives the stirring blades to rotate via the stirring shaft, ensuring a full reaction between the wool fibers and the oxidant. After the reaction time is up, open the outlet to quickly discharge the water containing the oxidant. Lock the first motor, and the second motor rotates the inner container via the rotating sleeve, quickly drying the wool fibers in the inner container and allowing the oxidant to separate from the wool fibers rapidly. This avoids the problem of prolonged oxidation time caused by excessive separation of the wool fibers from the oxidant.

[0034] The outer container includes a first container wall and a first container bottom plate disposed at the bottom of the first container wall. The device support includes bottom plate legs disposed at the bottom of the first container bottom plate. The first motor and the second motor are disposed in the space enclosed by the bottom plate legs. The motor housings of the first motor and the second motor are fixed to the bottom of the first container bottom plate.

[0035] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "joined" should be interpreted broadly. For example, the term "joined" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0037] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for grafting chitosan onto wool fibers, comprising a device holder, characterized in that: The device support comprises an outer container with an upper opening, the bottom of the outer container is rotatably fitted with an inner container with an upper opening, the bottom of the inner container is provided with a rotating sleeve which is rotatably fitted with the bottom of the outer container, the container wall of the inner container is provided with a water passing hole, the top of the outer container is provided with a water inlet, the bottom of the outer container is provided with a water outlet, the bottom of the inner container is rotatably fitted with a stirring shaft, the lower end of the stirring shaft passes out through the lower side of the rotating sleeve, the bottom of the outer container is provided with a first motor which is in transmission connection with the passing end of the stirring shaft, and the bottom of the outer container is further provided with a second motor which is in transmission connection with the rotating sleeve.

2. The wool fiber grafting chitosan reaction device according to claim 1, characterized in that: The first motor and the second motor are self-locking motors with a brake device.

3. The wool fiber grafting chitosan reaction device according to claim 1, characterized in that: The passing end of the stirring shaft is fixed with a stirring shaft gear, the motor shaft of the first motor is fixed with a first motor shaft gear which is in mesh transmission with the stirring shaft gear, and the diameter of the first motor shaft gear is greater than the diameter of the stirring shaft gear.

4. The wool fiber grafting chitosan reaction device according to claim 3, characterized in that: The rotating sleeve is fixed with a sleeve gear, the motor shaft of the second motor is fixed with a second motor shaft gear which is in transmission connection with the sleeve gear, and the diameter of the second motor shaft gear is smaller than the diameter of the sleeve gear.

5. The wool fiber grafting chitosan reaction device according to claim 4, characterized in that: The stirring shaft gear is located at the lower side of the sleeve gear, and the diameter of the stirring shaft gear is greater than the diameter of the sleeve gear.

6. The wool fiber grafting chitosan reaction device according to any one of claims 1-5, characterized in that: The outer container comprises a first container wall and a first container bottom plate which is arranged at the bottom of the first container wall, the device support comprises a bottom plate leg which is arranged at the bottom of the first container bottom plate, the first motor and the second motor are arranged in the space surrounded by the bottom plate leg, and the motor shell of the first motor and the second motor is fixed at the bottom of the first container bottom plate.

7. The wool fiber grafting chitosan reaction device according to claim 6, characterized in that: The water inlet is arranged at the upper end of the first container wall, and the water outlet is arranged at the lower end of the first container wall.

8. The wool fiber grafting chitosan reaction device according to claim 6, characterized in that: The inner container comprises a second container wall and a second container bottom plate which is arranged at the bottom of the second container wall, the rotating sleeve is fixed at the bottom of the second container bottom plate, and the water passing hole is distributed on the second container wall and the second container bottom plate.

9. The wool fiber grafting chitosan reaction device according to claim 1, characterized in that: The top of the outer container is provided with an outer container cover plate which can be opened and closed, and the top of the inner container is provided with an inner container cover plate which can be opened and closed.

Images