Mixing device for bleaching agent for dark-colored animal hair and villi and low-carbon bleaching method

Abstract

The present invention relates to the technical field of bleaching agent mixing, and provides a bleaching agent mixing device and a low-carbon bleaching method for dark-colored animal hair and villi fibers. [Solution] The bleaching agent mixing device comprises a base seat, a mixing tank mounted on the base seat, a height-adjustable lifting cantilever mounted above the mixing tank, and an extrusion pipe mounted on the side of the lifting cantilever closest to the mixing tank. After the lifting cantilever descends, the extrusion pipe enters the mixing tank, a fixed pipe is attached to the end of the extrusion pipe closest to the mixing tank, and an outflow pipe is attached to the end of the fixed pipe. The water flow discharged from the extrusion pipe through the outflow pipe flows circumferentially around the mixing tank. By installing the outflow pipe at the bottom of the extrusion pipe, which can generate a vortex, the water body inside the mixing tank can itself undergo a rotational mixing process, and the water bodies of different depths are mixed by the suction and ejection of the extrusion pipe, further improving the mixing effect.

Description

[Technical Field]

[0001] The present invention relates to the technical field of bleaching agent mixing, and more particularly to a bleaching agent mixing device for dark-colored animal hair and wool fibers and a low-carbon bleaching method. [Background technology]

[0002] Animal wool fibers have a pleasant feel, a soft luster, are comfortable to wear, are non-itchy, have anti-static properties, excellent heat retention, and are rare, earning them the nickname "soft gold" by industry insiders. However, many wool fibers, such as yak wool, camel wool, some cashmere, and sheep wool, have a certain color, making it difficult to meet the color diversity demands of textiles. Taking cashmere as an example, the value of cashmere is greatly influenced by color. White wool is the most valuable, accounting for only 40% of the total. Blue and purple wool, which account for about 60% of the total, are less expensive due to limited coloring options, but can be significantly more valuable by bleaching.

[0003] The decolorizing agent needs to be diluted before use, so the original decolorizing agent solution and the associated diluted solution need to be mixed. However, some existing mixing devices simply use a rotating stirring rod to perform the mixing process, which causes problems such as uneven concentration due to uneven mixing at different liquid heights, and therefore requires improvement.

[0004] In addition, during the process of washing and bleaching dark-colored animal hair fibers, the bleaching agent needs to be diluted before use, so the original bleaching agent solution and the associated diluted solution need to be mixed. However, some existing mixing devices simply use a rotating stirring rod to perform the stirring process, which leads to problems such as uneven concentration due to uneven stirring at different liquid heights.

[0005] Furthermore, during the use of the bleaching agent, the acidity and active ingredients in the bleaching agent are constantly consumed, requiring real-time replenishment according to the level of consumption. Existing technologies involve extracting the bleaching agent, replenishing it, and then returning it to the textile treatment vessel, which requires complex equipment, is costly, and is not suitable for treating small batches or individualized textile products. Meanwhile, directly replenishing the treatment solution, such as the bleaching agent, into the textile treatment vessel results in problems such as inability to stir, resulting in uneven solution concentrations. Summary of the Invention [Problem to be solved by the invention]

[0006] SUMMARY OF THE INVENTION The object of the present invention is to provide a mixing device for bleaching agents for dark-colored animal hair and villi and a low-carbon bleaching method for solving at least one of the technical problems existing in the above-mentioned existing technologies. [Means for solving the problem]

[0007] In order to solve the above-mentioned technical problems, the present invention provides a mixing device for bleaching agent for dark-colored animal hair villi, which comprises a base seat, a mixing tank installed on the base seat, a height-adjustable lifting cantilever installed above the mixing tank, and an extrusion tube installed on the side of the lifting cantilever closest to the mixing tank, wherein after the lifting cantilever descends, the extrusion tube enters the mixing tank, a fixed tube is installed at the end of the extrusion tube closest to the mixing tank, and an outflow tube is installed at the end of the fixed tube, and the water flow discharged from the extrusion tube through the outflow tube flows along the circumferential direction of the mixing tank.

[0008] In a preferred technical solution of the present invention, a suspension column is installed on the side of the lifting cantilever closer to the mixing tank, a piston is slidably connected inside the extrusion tube, and a liquid extrusion assembly for driving the piston up and down is installed in the middle of the suspension column. The liquid extrusion assembly includes a sliding support rod slidably connected to the middle of the suspension column, a lifting ring fixedly connected to the outside of the sliding support rod, and an engaging part slidably connected to the outside of the lifting ring and lifting up and down in synchronization with the lifting ring, the engaging part being fixedly connected to one end of a push-pull rod, and the other end of the push-pull rod being fixedly connected to the piston. A standing plate is installed on the side of the lifting cantilever away from the mixing tank, a rotating shaft is rotatably connected to the end of the standing plate, a deflection lever is installed on the end of the rotating shaft, an end of the deflection lever away from the rotating shaft is rotatably connected to one end of a connecting rod, the other end of the connecting rod is rotatably connected to a top rod slidably connected to the lifting cantilever, and the top rod is fixedly connected to the sliding support rod, a first driving motor is installed in the middle of the standing plate, and the output shaft of the first driving motor is connected to the rotating shaft via a gear transmission manner.

[0009] In a preferred technical solution of the present invention, a rotary support rod is rotatably connected to the end of the suspension column close to the mixing tank, and the end of the rotary support rod away from the suspension column is fixedly connected to an extrusion tube, and an angle lock assembly is installed on the sliding support rod to limit the rotation of the rotary support rod. The angle lock assembly includes a slider slidably connected to the sliding support rod, a rotary lever installed on the side of the slider, and an L-shaped stopper rotatably connected to the end of the rotary lever and aligned with the engaging portion. A plurality of extrusion tubes are installed on the outside of the rotary support rod, evenly distributed around the center of the suspension column, and the outflow pipes corresponding to the plurality of extrusion tubes are distributed circumferentially symmetrically around the axis of the suspension column.

[0010] As a preferred technical solution of the present invention, a first three-way joint is connected to one end of the fixed pipe, and an inlet pipe and an outlet pipe are connected to the other two ends of the first three-way joint in opposite directions, and a one-way valve is installed inside the inlet pipe to allow water flow only into the inlet pipe.

[0011] In a preferred technical solution of the present invention, a guide pillar is installed at the end of the base seat and is slidably connected to the lifting cantilever, and a lifting screw shaft installed parallel to the guide pillar is screw-connected to the lifting cantilever, and a second drive motor is installed on the base seat, and the output shaft of the second drive motor is connected to the lifting screw shaft by gear transmission.

[0012] The second aspect of the present application discloses a low-carbon bleaching method, and the bleaching agent mixed and processed by the mixing device for dark-colored animal hair villi can be used to bleach dark-colored animal hair villi such as yak hair villi based on this low-carbon bleaching method.

[0013] The low-carbon bleaching method includes the following steps: S10. Using the above-mentioned bleaching agent mixing device, the bleaching agent mixture is mixed and stirred uniformly, and the bleaching agent mixture contains the following components: Sodium persulfate: 2-5 wt% Sodium hexametaphosphate: 0.2 to 0.8 wt% Sodium alkylbenzene sulfonate: 0.4-0.8% Dimethylformamide: 1 to 10 wt% H2O2: 20-40% Remainder: water S20. Immerse dark-colored animal hair follicle fibers in the decolorizing agent mixture for 1 to 3 hours; S30. During the soaking process, add alkaline solution to the bleaching agent mixture to maintain the pH value of the bleaching agent mixture at 9-10; S40. Allow to dry.

[0014] Furthermore, in step S20, the temperature of the mixed solution of the decolorizing agent is 20 to 40°C, and the immersion bath ratio is 1:10 to 1:50.

[0015] Furthermore, in step S30, the pH value of the mixed solution of the decolorizing agent is detected every 2 to 10 minutes, and the amount of alkaline solution to be added is controlled according to the magnitude of the detected pH value.

[0016] Preferably, the alkaline liquid is sodium hydroxide liquid. [Effects of the Invention]

[0017] By adopting the above technical solutions, the present invention has the following beneficial effects:

[0018] The mixing device for dark-colored animal hair fiber bleaching agent provided by the present invention has an outflow pipe at the bottom of the extrusion pipe that can generate a vortex, so that the water body inside the mixing tank itself can perform rotational mixing processing. At the same time, the reaction force of the water flow from the extrusion pipe to the outflow pipe can also perform stirring processing, which increases the mixing dynamics of the entire mixing tank and improves the mixing effect. Furthermore, the water bodies of different depths can be mixed by the inhalation and exhalation of the extrusion pipe, which further improves the mixing effect.

[0019] What is particularly important is that the mixing tank of the present invention can be used as a container for bleaching dark-colored animal hair and villi fibers. During the bleaching process, bleaching agent can be replenished into the mixing tank in a timely manner according to the bleaching agent consumption status, thereby maintaining the set concentration and achieving a uniform solution concentration throughout the tank, thereby solving the shortcomings of existing technologies.

[0020] The low-carbon bleaching method disclosed in this application significantly reduces the amount of water used, and can reduce water consumption by 30 to 70% on the premise of ensuring a whiteness of 85 to 95%. [Brief explanation of the drawings]

[0021] In order to more clearly explain the specific implementation modes of the present invention or the technical solutions in the existing technology, the following will briefly introduce the drawings necessary for explaining the specific implementation modes or the existing technology. Obviously, the drawings in the following description are some implementation modes of the present invention, and those skilled in the art can obtain other drawings based on these drawings without paying creative labor. [Figure 1] 1 is a structural schematic diagram of a mixing device for a bleaching agent for dark-colored animal hair and villi in Example 1. FIG. [Figure 2] FIG. 2 is a front view of FIG. [Figure 3]FIG. 2 is a schematic enlarged view of a portion A in FIG. [Figure 4] FIG. 2 is a structural schematic diagram of a lifting cantilever in the bleaching agent mixing device in Example 1. [Figure 5] FIG. 2 is a structural schematic diagram of a liquid extrusion assembly in the bleaching agent mixing device in Example 1. [Figure 6] FIG. 6 is a right side view of FIG. 5. [Figure 7] 1 is a structural schematic diagram of the lifting ring in the bleaching agent mixing device in Example 1. FIG. [Figure 8] FIG. 2 is a structural schematic diagram of an angle lock assembly in the bleaching agent mixing device in Example 1. [Figure 9] 3 is a structural schematic diagram of an engagement portion in the bleaching agent mixing device in Example 1. FIG. [Figure 10] FIG. 2 is a schematic diagram showing the internal structure of an extrusion tube in a decolorizing agent mixing device. [Figure 11] FIG. 2 is a structural schematic diagram of the first three-way joint in the decolorizing agent mixing device. [Figure 12] FIG. 10 is a schematic plan view of the structure of the combined refill detection assembly in Example 3. [Figure 13] FIG. 10 is a schematic plan view of the structure of a separate refill detection assembly in Example 3. [Figure 14] This is a schematic diagram of the three-dimensional structure of the connection point between the branch pipe / detection pipe / refill pipe and the extrusion pipe. DETAILED DESCRIPTION OF THE INVENTION

[0022] The technical solutions of the present invention will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without paying creative labor fall within the scope of protection of the present invention.

[0023] In describing the present invention, it should be noted that the orientations or positional relationships indicated by terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are based on the orientations or positional relationships shown in the drawings, and are merely for the purpose of illustrating and simplifying the present invention, and do not indicate or imply that the indicated devices or elements must have a particular orientation, be configured and operated in a particular orientation, and should not be understood as limitations of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

[0024] In describing the present invention, it is necessary to explain that, unless otherwise clearly specified and limited, the terms "attached," "connected," and "coupled" should be understood in a broad sense, and may refer to, for example, fixed connection, detachable connection, integral connection, mechanical connection, electrical connection, direct connection, indirect connection via an intermediate medium, or internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific circumstances.

[0025] The present invention will be described in more detail below in conjunction with specific implementation modes.

[0026] Example 1 As shown in Figures 1 to 11, the mixing device for dark-colored animal hair and wool fibers provided in this embodiment includes a base seat 1 and a mixing tank 2 installed on the base seat 1. The base seat 1 is horizontally disposed, and the mixing tank 2 is a cylindrical container with an open top. A vertically movable lifting cantilever 3 is installed horizontally above the mixing tank 2. A vertically installed extrusion pipe 5 is located below the right side of the lifting cantilever 3. The lower end of the extrusion pipe 5 is the outlet end. After the lifting cantilever 3 descends, the extrusion pipe 5 can be inserted downward into the mixing tank 2. The extrusion pipe 5 approaches the inner wall of the mixing tank 2. The upper end of the vertically installed fixed pipe 6 is connected to the outlet end at the bottom of the extrusion pipe 5. The fixed pipe 6 The outflow pipe 7 is installed horizontally at the bottom of the mixing tank 2, and the outflow pipe 7 and the outflow end of the extrusion pipe 5 are connected through the fixed pipe 6. When the extrusion pipe 5 discharges water outward, the outflow pipe 7 discharges water, and the direction of the water flow is parallel to the circumferential direction of the mixing tank 2. Therefore, after the outflow pipe 7 discharges water, the water flow causes the water body inside the mixing tank 2 to move, thereby creating a vortex effect at the bottom of the mixing tank 2 and performing the mixing process. When the extrusion pipe 5 absorbs water, the liquid at the bottom of the mixing tank 2 enters the extrusion pipe 5, and the water body above the mixing tank 2 descends. When the extrusion pipe 5 discharges water again, the discharged water mixes with the water body inside the mixing tank 2, thereby realizing the continuous mixing process of the water bodies at different depths in the mixing tank 2.

[0027] In one embodiment of the present invention, a suspension column 4 is vertically installed on the right end of the lower surface of the lifting cantilever 3, a piston 27 is installed inside the extrusion tube 5, and a liquid extrusion assembly 20 is installed in the middle of the suspension column 4, and the liquid extrusion assembly 20 can move the piston 27 up and down inside the extrusion tube 5, so that the liquid enters or discharges from the extrusion tube 5 and realizes the flow of the water body. The liquid extrusion assembly 20 includes a sliding support rod 19 slidably connected to the middle of the suspension column 4, the sliding support rod 19 has a cross structure, a sliding column is slidably connected to the middle of the sliding support rod 19, and a horizontally installed lifting ring 8 is fixedly connected to the outer end of the sliding support rod 19, the axes of the lifting ring 8 and the suspension column 4 overlap, the lifting ring 8 is horizontally installed, and an engagement part 9 is slidably connected to the outer side of the lifting ring 8, the engagement part 9 has a C-shaped structure, the engagement part 9 engages with the outer side of the lifting ring 8, and the engagement part 9 A support wheel 11 is installed near the lifting ring 8, and the support wheel 11 rolls on the outside of the lifting ring 8, so that the upper, lower, and outer sides of the lifting ring 8 are all connected to the support wheel 11. The engaging part 9 can move up and down synchronously with the lifting ring 8 and can rotate along the center of the lifting ring 8. The upper end of a push-pull rod 26, which is installed vertically on the lower surface of the engaging part 9, is fixedly connected thereto, and the lower end of the push-pull rod 26 is fixedly connected to the upper surface of the piston 27, so that after the lifting ring 8 moves up and down, the piston 27 also moves up and down.

[0028] In one embodiment of the present invention, a stand 12 is installed vertically on the right side of the upper surface of the lifting cantilever 3, and the center of a rotating shaft 18 installed in the left-right direction is rotatably connected to the upper end of the stand 12. The center of a deflection lever 14 is fixedly connected to both the left and right ends of the rotating shaft 18. A counterweight block is installed on one end of the deflection lever 14, and the upper end of a connecting rod 13 is rotatably connected to the other end of the deflection lever 14. The upper end of the connecting rod 13 is rotatably connected to the lower end of the connecting rod 13. The center of the top rod 10 is slidably connected to the lifting cantilever 3, and the lower end of the top rod 10 is slidably connected to the lifting cantilever 3. The first driving motor 15 is installed in the middle of the right side of the upright plate 12, and the first helical gear 16 is fixedly connected to the output shaft of the first driving motor 15. The first helical gear 16 is meshed with the second helical gear 17, and the second helical gear 17 is fixedly connected to the right side of the rotating shaft 18. Therefore, the first driving motor 15 can rotate the rotating shaft 18 through a gear transmission method, and the rotating shaft 18 rotates and drives the deflection lever 14. The deflection lever 14 moves the top rod 10 up and down through the connecting rod 13, thereby moving the lifting ring 8 up and down, and thus realizing the up and down movement of the piston 27.

[0029] In one situation of this embodiment, the middle part of the rotating support rod 25 is rotatably connected to the lower end of the suspension column 4, and the end of the rotating support rod 25 away from the suspension column 4 is fixedly connected to the outer wall of the extruded tube 5 so that the extruded tube 5 can rotate along the center of the suspension column 4. An angle locking assembly 24 is installed on the sliding support rod 19, and the angle locking assembly 24 can restrict the engagement part 9 from sliding on the lifting ring 8, thereby restricting the rotation of the extruded tube 5 around the suspension column 4, thereby realizing the angle locking process. The angle locking assembly 24 includes a slider 23 slidably connected to the front and rear sides of the sliding support rod 19. Rotating levers 22 are installed on the left and right sides of the slider 23. L-shaped stoppers 21 are rotatably connected to the ends of the rotating levers 22. Under the action of gravity, the L-shaped stoppers 21 are in a vertical position. When angle locking is required, the L-shaped stoppers 21 are rotated to a horizontal position and point away from the suspension column 4. After the engaging parts 9 rotate to the front and rear sides of the lifting ring 8, the slider 23 is slid away from the suspension column 4. Due to a certain deformation of the L-shaped stoppers 21 themselves, the L-shaped stoppers 21 engage with the left and right sides of the engaging parts 9. At this time, the engaging parts 9 cannot slide on the lifting ring 8, thereby realizing the angle locking process of the extruded tube 5.

[0030] In one situation of this embodiment, a plurality of extrusion tubes 5 are installed on the outside of the rotation support rod 25, evenly distributed around the axis of the suspension column 4. When the mixing device is only installed with one extrusion tube 5, the force of the rotation support rod 25 is unidirectional. At this time, the rotation support rod 25 is in a cantilever state, so multiple extrusion tubes 5 can be installed, and the extrusion tubes 5 are evenly distributed around the suspension column 4, so that the rotation support rod 25 is subjected to force on all four sides, improving stability. However, the more extrusion tubes 5 are designed, the more the mixing space of the reagents inside the mixing tank 2 is occupied, so more is not necessarily better. In this application, two extrusion tubes 5 are used, so the middle part of the horizontal rod-shaped rotation support rod 25 is rotatably connected to the lower end of the suspension column 4, and the rotation support rod The left and right ends of the rod 25 are fixedly connected to the extrusion pipes 5, so that the extrusion pipes 5 on both sides can all output mixing power and stabilize the force-bearing of the suspension column 4. The outflow pipes 7 corresponding to the multiple extrusion pipes 5 are distributed circumferentially symmetrically around the axis of the suspension column 4. For example, referring to the state of Figure 2, in this application, two extrusion pipes 5 are installed, and the outflow pipe 7 below the left extrusion pipe 5 is installed toward the rear, and the outflow pipe 7 corresponding to the right extrusion pipe 5 is installed toward the front. Therefore, when viewed from the top, the water flows from the outflow pipes 7 on both sides are all clockwise, which avoids the problem of mutual collision. In addition, the outflow pipes 7 are designed with an arc-shaped structure, so that the water flows from the outflow pipes 7 can flow more smoothly along the inner wall of the mixing tank 2.

[0031] In one embodiment of the present invention, the lower end of the fixed pipe 6 is connected to the upper middle joint of the first three-way joint 30, and there are two more joints at the front and rear ends of the first three-way joint 30, which respectively connect the outlet pipe 7 and the inlet pipe 28, and a one-way valve 29 is installed inside the inlet pipe 28, so that water can only enter the inside of the inlet pipe 28 from the outside, but the inlet pipe 28 cannot discharge liquid. Therefore, when the extrusion pipe 5 discharges liquid, the water flow can only be discharged through the outlet pipe 7, and when the water flow is suction, the water flow can enter through the inlet pipe 28 and the outlet pipe 7 at the same time. The specific operating method will be explained in detail in the subsequent process.

[0032] In one embodiment of the present invention, a guide column 31 is vertically installed on the left end of the upper surface of the base seat 1, and the left end of the lifting cantilever 3, which is horizontally installed above the guide column 31, is slidably connected to the guide column 31. A lifting screw shaft 32 is also vertically installed on the right side of the guide column 31, and the upper end of the lifting screw shaft 32 is screw-connected to the lifting cantilever 3. The top end of the lifting screw shaft 32 is rotatably connected to the right end of the fixed plate 33. The left end of the fixed plate 33 is fixedly connected to the upper end of the guide column 31, and the lower end of the lifting screw shaft 32 is is rotatably connected to the base seat 1, and a second driving motor 34 is installed on the base seat 1, a third helical gear 35 is fixedly connected to the output shaft of the second driving motor 34, the third helical gear 35 is meshed with a fourth helical gear 36, and the fourth helical gear 36 is fixedly connected to the lower part of the lifting screw shaft 32, and the second driving motor 34 rotates and drives the lifting screw shaft 32 through a gear transmission method, and the lifting screw shaft 32 moves the lifting cantilever 3 up and down along the guide column 31, thereby adjusting the height of the right-side extrusion tube 5.

[0033] In carrying out this embodiment, the second drive motor 34 is first started, which moves the lifting cantilever 3 upward via the lifting screw shaft 32. The mixing tank 2 is placed above the right side of the base seat 1, and is installed so that the center of the mixing tank 2 is roughly aligned with the center of the suspension column 4. The undiluted decolorizing agent and diluent to be mixed are poured into the mixing tank 2. Then, the second drive motor 34 is started in reverse, which moves the lifting cantilever 3 downward. The extrusion pipe 5 is inserted into the mixing tank 2, and the outlet pipe 7 and inlet pipe 28 are positioned at the bottom of the mixing tank 2. At this point, the initial mixing process can be carried out.

[0034] In the water body rotation mixing, the engaging part 9 is artificially rotated at its position on the lifting ring 8, and the engaging part 9 is rotated to both the front and rear sides of the lifting ring 8. At this time, the L-shaped stopper 21 can be rotated to a horizontal state, and the slider 23 is slid toward the engaging part 9, so that the two L-shaped stoppers 21 are engaged with the left and right sides of the engaging part 9, and the position of the engaging part 9 on the lifting ring 8 is locked. At this time, the first driving motor 15 can be started, and the first driving motor 15 rotates through gear transmission. The rotating shaft 18 is rotated, and the rotating shaft 18 has a crank structure consisting of the deflection lever 14 and the connecting rod 13, which causes the top rod 10 to move the lifting ring 8 up and down. The lifting ring 8 moves the piston 27 up and down through the push-pull rod 26. When the piston 27 moves upward, the water flows through the outlet pipe 7 and the inlet pipe 28 into the extrusion pipe 5. When the piston 27 moves downward, the water flows out through the outlet pipe 7. The water flows out from both sides of the outlet pipe 7 and then flattens out. As seen in the figure, a clockwise vortex is generated, which causes the water flow to rotate and perform mixing processing. The extrusion pipe 5 continuously draws in and discharges the water body at the bottom, so that the water body at the bottom is constantly re-mixed in the mixing tank 2, and the water bodies at different heights are all effectively mixed. After the water flow vortex is formed, the inlet pipe 28, which is opposite to the outlet pipe 7, faces the opposite direction of the water flow. When the piston 27 moves upward to suck in water, the water body at the end of the inlet pipe 28 flows directly into the inlet pipe 28. At this time, the efficiency of the inlet pipe 28's suction is increased compared to when the water body is stationary. At this time, the water inlet efficiency of the inlet pipe 28 is higher than that of the outlet pipe 7, thereby reducing the loss of rotational speed caused by the rotation of the water body during suction. As the piston 27 continuously moves up and down, the outlet pipe 7 and the outlet pipe 7 cooperate to continuously generate a clockwise vortex at the bottom of the water body. The clockwise vortex of the water body itself and the suction and discharge of the extrusion pipe 5 itself achieve a basic mixing process.

[0035] In the stirring and mixing process, after the water body itself has been mixed for a certain period of time, the first driving motor 15 is stopped, the L-shaped stopper 21 and the engaging part 9 are disengaged, the L-shaped stopper 21 rotates vertically under the action of gravity, the engaging part 9 can rotate along the lifting ring 8, and the L-shaped stopper 21 rotated vertically also does not affect the rotation of the engaging part 9, at this time the first driving motor 15 can be started again, the engaging part 9 sliding along the lifting ring 8 also moves up and down in synchronization with the lifting ring 8, at this time the piston 27 still moves up and down inside the extrusion pipe 5, when the outflow pipe 7 of the extrusion pipe 5 sprays out a water flow, the extrusion pipe 5 moves counterclockwise around the suspension column 4 due to the reaction force of the water flow 2. As the outlet pipe 7 rotates clockwise, and the outlet pipe 7 intermittently sprays water, the extrusion pipe 5 continues to rotate counterclockwise around the suspension column 4 under the action of inertia, and the original water body in the mixing tank 2 is still rotating in the opposite direction to the movement of the inlet pipe 28, so that the inlet efficiency of the inlet pipe 28 is still higher than that of the outlet pipe 7. At this time, on the one hand, the outlet pipe 7 constantly sprays out the water body rotating clockwise, and on the other hand, the extrusion pipe 5 itself performs a counterclockwise stirring process in the mixing tank 2, so that the collision efficiency of the extrusion pipe 5 with the water body in the mixing tank 2 is higher, thereby improving the stirring effect of the extrusion pipe 5 and the mixing effect of the water body in the mixing tank 2.

[0036] In the discharge process, after the liquid inside the mixing tank 2 has finished mixing, the piston 27 reaches the bottom of the extrusion pipe 5, and then the first driving motor 15 can be stopped. At this time, the second driving motor 34 is started to move the lifting cantilever 3 upward. After the outlet pipe 7 and the inlet pipe 28 are higher than the water level inside the mixing tank 2, the first driving motor 15 is started again. The piston 27 first moves upward, and the outlet pipe 7 and the inlet pipe 28 suck in the gas. After standing for a certain period of time, the gas flows upward in the extrusion pipe 5. At this time, a small amount of liquid remains at the bottom of the extrusion pipe 5. The piston 27 moves downward again, and the water at the bottom of the extrusion pipe 5 is discharged through the outlet pipe 7. Since the inlet pipe 28 is short, only a small amount of liquid remains, and after the outlet pipe 7 has been drained, the liquid remaining in the inlet pipe 28 is carried away even as the gas flows out. Therefore, the small amount of liquid that ultimately remains in the inlet pipe 28 is negligible, and subsequent mixing processes can be continued. Only when the entire mixing apparatus is not in use for an extended period of time does the inlet pipe 28 need to be cleaned. At this time, the second drive motor 34 is again used to move the lifting cantilever 3 upward, so that the inlet pipe 28 and outlet pipe 7 are completely detached from the mixing tank 2, and the mixing tank 2 can be removed. At this time, the diluted decolorizing agent solution that has already been mixed inside the mixing tank 2 can be poured out.

[0037] The present invention is applied to a mixing device for bleaching agents for dark-colored animal hair fibers. By installing an outflow pipe 7 at the bottom of the extrusion pipe 5, which can generate a vortex, the water body inside the mixing tank 2 itself can perform rotational mixing processing. At the same time, the stirring processing can be performed under the reaction force of the water flow ejected from the outflow pipe 7 by the extrusion pipe 5, which increases the mixing dynamics of the entire mixing tank 2 and improves the mixing effect. Furthermore, the water bodies of different depths are mixed by the suction and ejection of the extrusion pipe 5, which further improves the mixing effect.

[0038] Example 2 This example discloses a low-carbon bleaching method, in which the bleaching agent is mixed and processed by the mixing device for bleaching dark-colored animal hair villi disclosed in Example 1, and then used to bleach dark-colored animal hair villi such as yak hair villi. The bleaching method includes the following steps:

[0039] S10. Using the above-mentioned bleaching agent mixing device, the bleaching agent mixture is mixed and stirred uniformly, and the bleaching agent mixture contains the following components: Sodium persulfate: 2-5 wt% Sodium hexametaphosphate (or polyethylene polyamine polyalkylene phosphonate): 0.2 to 0.8 wt% Sodium alkylbenzene sulfonate: 0.4-0.8% Dimethylformamide: 1 to 10 wt% H2O2: 20-40% The rest: water.

[0040] S20. Immerse dark-colored animal hair villi fibers in the bleaching agent mixture, the immersion time is 1 to 3 hours, the bleaching agent mixture temperature is 20 to 40°C, and the immersion bath ratio is 1:50 to 1:70.

[0041] S30. During the immersion process, an alkaline solution is added to the bleaching agent mixture to maintain the pH value of the bleaching agent mixture at 9-10. Specifically, the pH value of the bleaching agent mixture is detected every 2-10 minutes, and the amount of alkaline solution added is controlled according to the detected pH value. The alkaline solution is preferably sodium hydroxide liquid.

[0042] S40. After drying, the bleached dark animal hair filaments are obtained. Dark animal hair filaments generally include dark cashmere, dark sheep wool, yak wool, camel wool, etc.

[0043] The low-carbon bleaching method disclosed in this application significantly reduces the amount of water used, and on the premise of guaranteeing a whiteness of 60, the amount of water used can be reduced by 30 to 70%.

[0044] Example 3 As shown in Figures 12 to 14, this embodiment discloses a mixing device for a bleaching agent for dark-colored animal hair villi. The difference from Example 1 is that after this device mixes the bleaching agent, animal hair villi 46 is added thereto and stirred for bleaching.

[0045] The device further includes a refill detection assembly, which is used to extract liquid from within the extrusion tube 5 for sampling detection or to inject a reagent into the extrusion tube 5 .

[0046] In another embodiment of this embodiment, the refill detection assembly includes a branch pipe 43 and a control valve, which controls the branch pipe 43 and is normally closed. The branch pipe 43 communicates with the extrusion pipe 5 (as shown in FIG. 14 ). When the piston 27 presses downward, the control valve opens, allowing a portion of the liquid in the extrusion pipe 5 to be discharged through the branch pipe 43. The discharged liquid is collected and detected to determine the acidity and concentration of each component of the liquid. When the piston 27 rises, the control valve opens, allowing a reagent such as alkaline solution or hydrogen peroxide to be introduced into the branch pipe. The reagent is then drawn into the extrusion pipe 5. The control valve closes, causing the piston 27 to descend, discharging the reagent from the extrusion pipe 5 into the mixing tank 2.

[0047] As shown in FIG. 13, in another embodiment of this embodiment, the refill detection assembly includes a detection pipe 37, a refill pipe 38, a first control valve 39, a second control valve 40, a detection device 41 and a refill device 42, and both ends of the detection pipe 37 are connected to the detection device 41 and the extrusion pipe 5 respectively, and both ends of the refill pipe 38 are connected to the refill device 42 and the extrusion pipe 5 respectively, and the first control valve 39 and the second control valve 40 are installed on the detection pipe 37 and the refill pipe 38 respectively.

[0048] In another embodiment of this invention, the detecting pipe 37 and the refilling pipe 38 can be installed on the same extrusion pipe 5, or on two different extrusion pipes 5, respectively.

[0049] As shown in FIG. 12, in a further embodiment of this embodiment, in order to reduce the complexity of the equipment, the refill detection assembly further includes a branch pipe 43 and a second three-way joint 44, one end of the branch pipe 43 is connected to the side wall of the extrusion pipe 5, and the other end is connected to the detection pipe 37 and the refill pipe 38 through the second three-way joint 44, the ends of the detection pipe 37 and the refill pipe 38 away from the second three-way joint 44 are connected to the detection device 41 and the refill device 42 respectively, and the first control valve 39 and the second control valve 40 are installed on the detection pipe 37 and the refill pipe 38 respectively.

[0050] As shown in FIG. 14, in another embodiment of this invention, a blocking structure 45 is further installed on the inlet pipe and the outlet pipe, which is used to prevent animal hair filaments 46 from entering.

[0051] In a preferred embodiment of this invention, the blocking structure 45 is a structure such as a perforated plate or a mesh sleeve.

[0052] The detecting device 41 and the replenishing device 42 can be selected from existing automatic detecting and adding devices, and the technical content of this is an existing technology, so this application does not make any further limitations here. In addition, the detecting device 41 and the replenishing device 42 can also be replaced by manual operations by an operator.

[0053] The difference between this example and Example 1 is that after the blending device for dark-colored animal hair villi fibers disclosed in this example mixes the bleaching agent, dark-colored animal hair villi fibers 46 are directly added to the mixing tank for bleaching. The bleaching principle is that the bleaching agent, which is a blend of substances such as persulfate and hydrogen peroxide, acts on the melanin bodies in the animal fibers in a weakly alkaline environment, oxidizing and decomposing 5,6-dihydroxyindole, the main component in the melanin bodies, into smaller molecular substances. After the melanin bodies are decomposed, the color of the dark-colored animal fibers becomes lighter. During this process, the persulfate gradually weakens the alkalinity of the overall solution during the reaction, and without human intervention, the solution in the mixing tank may even gradually become acidic. Therefore, alkaline solution must be added in a timely manner to maintain the pH value of the bleaching agent solution between 9 and 10.

[0054] In addition, hydrogen peroxide is continuously consumed during the bleaching process, the hydrogen peroxide content gradually decreases, and the bleaching effect gradually weakens. Therefore, sampling and detection must be carried out in real time during the bleaching process, and hydrogen peroxide must be increased based on the detection results.

[0055] When adding the alkali and hydrogen peroxide, it is necessary to avoid the high concentration alkali and hydrogen peroxide coming into direct contact with the animal hair villi 46 and causing corrosion of the animal hair villi 46. Therefore, when adding the alkali and hydrogen peroxide, the alkali and hydrogen peroxide must first be diluted, and then discharged into a mixing tank and stirred quickly.

[0056] In this embodiment, the bleaching agent is first stirred as described in Example 1, then dark animal hair follicle 46 is added to the mixing tank, and stirring is then continued by pushing and pulling the piston 27. Unlike the propeller-type stirring commonly used in existing technology, the device of this application does not suffer from propeller entrapment during the stirring process. Sampling detection and reagent replenishment are performed periodically during the stirring process. During the stirring process, the first control valve 39 and the second control valve 40 are normally closed.

[0057] The specific operation of sampling and detection is as follows: When piston 27 descends, first control valve 39 is opened, and some of the liquid in extrusion tube 5 is forced into branch pipe 43. The liquid then passes through branch pipe 43 and detection tube 37 into detection device 41. First control valve 39 is closed, and the pH value and hydrogen peroxide concentration of the liquid are measured through detection device 41. Based on the measurement results, the amount of alkali and hydrogen peroxide that needs to be added to the mixing tank is determined, and reagent replenishment is performed.

[0058] The actual refilling process is as follows: When the piston 27 ascends, the second control valve 40 opens, and the reagent from the refilling device 42 is drawn into the extrusion pipe 5 through the refilling pipe 38 and the branch pipe 43, completing the initial dilution with the liquid in the extrusion pipe 5; then the second control valve 40 closes, and the piston 27 descends, discharging the initially diluted liquid in the extrusion pipe 5 into the mixing tank.

[0059] The mixing device for bleaching agents for dark-colored animal hair villi disclosed in this embodiment can not only complete the mixing of the bleaching agent, but also directly bleach the dark-colored animal hair villi 46, and the continuous stirring during the bleaching process prevents the hair villi and equipment from becoming entangled. In use, the extraction and replenishment of the bleaching agent is carried out by the cooperation of the refill detection assembly and the piston 27 in the extrusion tube 5. Compared to the direct refilling of alkaline solution and hydrogen peroxide commonly used in existing technology, in this embodiment the reagent is first refilled into the extrusion tube 5 for initial dilution, and then discharged into the mixing tank for dilution and contact with the dark-colored animal hair villi 46, effectively preventing the dark-colored animal hair villi 46 from reaching localized areas of high-concentration alkaline solution and hydrogen peroxide, causing fiber damage.

[0060] Finally, it should be noted that the above embodiments are merely used to explain the technical solutions of the present invention, and are not intended to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will understand that various modifications can be made to the technical configurations described in the above embodiments, or that some or all of the technical features can be replaced with equivalents. Furthermore, any of these modifications or replacements does not depart from the scope of the technical idea of ​​the embodiments of the present invention. [Explanation of symbols]

[0061] 1: base seat, 2: mixing tank, 3: lifting cantilever, 4: suspension column, 5: extrusion pipe, 6: fixed pipe, 7: outflow pipe, 8: lifting ring, 9: engagement part, 10: top rod, 11: support wheel, 12: standing plate, 13: connecting rod, 14: deflection lever, 15: first driving motor, 16: first helical gear, 17: second helical gear, 18: rotating shaft, 19: sliding support rod, 20: liquid extrusion assembly, 21: L-shaped stopper, 22: rotating lever, 23: slider, 24: corner Degree lock assembly, 25: rotating support rod, 26: pushing / pulling rod, 27: piston, 28: inlet pipe, 29: one-way valve, 30: first three-way joint, 31: guide column, 32: lifting screw shaft, 33: fixed plate, 34: second drive motor, 35: third bevel gear, 36: fourth bevel gear, 37: detection pipe, 38: refill pipe, 39: first control valve, 40: second control valve, 41: detection equipment, 42: refill equipment, 43: branch pipe, 44: second three-way joint, 45: shut-off structure, 46: animal hair fiber.

Claims

1. A mixing device for a bleaching agent for dark-colored animal hair and filaments, comprising a base seat and a mixing tank installed on the base seat, A height-adjustable lifting cantilever is installed above the mixing tank, an extrusion pipe is installed on the side of the lifting cantilever that is close to the mixing tank, the extrusion pipe enters the mixing tank after the lifting cantilever descends, a fixed pipe is installed on the end of the extrusion pipe that is close to the mixing tank, an outflow pipe is installed on the end of the fixed pipe, and the water flow discharged from the extrusion pipe through the outflow pipe flows along the circumferential direction of the mixing tank, a suspension column is installed on the side of the lifting cantilever that is close to the mixing tank, a piston is slidably connected inside the extrusion tube, and a liquid extrusion assembly that drives the piston up and down is installed in the middle of the suspension column; The liquid extrusion assembly includes a sliding support rod slidably connected to a center of a suspension column, an elevator ring fixedly connected to the outside of the sliding support rod, an engagement part slidably connected to the outside of the elevator ring, the engagement part being adapted to rise and fall in synchronization with the elevator ring, the engagement part being fixedly connected to one end of a push-pull rod, and the other end of the push-pull rod being fixedly connected to a piston; a rotary support rod is rotatably connected to an end of the suspension column close to the mixing tank, and the end of the rotary support rod away from the suspension column is fixedly connected to an extrusion tube; an angle lock assembly is installed on the sliding support rod to limit the rotation of the rotary support rod; The angle lock assembly includes a slider slidably connected to a sliding support rod, a rotating lever is installed on a side of the slider, and an L-shaped stopper that aligns with the engagement portion is rotatably connected to an end of the rotating lever, A mixing device for bleaching agents for dark-colored animal hair and filaments, characterized in that a plurality of extrusion pipes are installed on the outside of the rotating support rod, evenly distributed around the center of the suspension column, and the exudation pipes corresponding to the plurality of extrusion pipes are distributed circumferentially symmetrically around the axis of the suspension column.

2. 2. The mixing device for bleaching agents for dark-colored animal hair and miliaria as claimed in claim 1, wherein a vertical plate is installed on the side of the lifting cantilever away from the mixing tank, a rotating shaft is rotatably connected to the end of the vertical plate, a deflection lever is installed on the end of the rotating shaft, the end of the deflection lever away from the rotating shaft is rotatably connected to one end of a connecting rod, the other end of the connecting rod is rotatably connected to a top rod that is slidably connected to the lifting cantilever, and the top rod is fixedly connected to the sliding support rod, a first driving motor is installed in the middle of the vertical plate, and the output shaft of the first driving motor is connected to the rotating shaft by a gear transmission method.

3. 2. The mixing device for a bleaching agent for dark-colored animal hair and filaments as claimed in claim 1, wherein a first three-way joint is connected to one end of the fixed pipe, and an outlet pipe and an inlet pipe are connected to the other two ends of the first three-way joint in opposite directions, and a one-way valve is installed inside the inlet pipe to allow water flow only into the inlet pipe.

4. The mixing device for bleaching agents for dark-colored animal hair and filaments described in claim 1, characterized in that a guide pillar slidably connected to the lifting cantilever is installed at the end of the base seat, and a lifting screw shaft installed parallel to the guide pillar is screw-connected to the lifting cantilever, and a second drive motor is installed on the base seat, and the output shaft of the second drive motor is connected to the lifting screw shaft by gear transmission.

5. A low-carbon bleaching method using a mixing device for the bleaching agent for dark-colored animal hair and villi fibers according to any one of claims 1 to 4, S10. Using the mixing device for the bleaching agent for dark-colored animal hair villi fibers, the bleaching agent mixture is uniformly mixed and stirred, and the bleaching agent mixture contains the following components: Sodium persulfate: 2 to 5 wt% Sodium hexametaphosphate: 0.2 to 0.8 wt% Sodium alkylbenzene sulfonate: 0.4-0.8% Dimethylformamide: 1 to 10 wt% H ２ O ２ :20~40% Remainder: water S20. Immersing dark-colored animal hair follicle fibers in the bleaching agent mixture for 1 to 3 hours; S30. During the immersion process, adding an alkaline solution to the bleaching agent mixture to maintain the pH value of the bleaching agent mixture at 9-10; S40. A low-carbon decolorization method comprising the steps of:

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