Dark animal plush fiber decolorizing agent mixing equipment and low-carbon decolorizing method

Abstract

The invention relates to the technical field of decolorizing agent mixing, and provides deep animal plush fiber decolorizing agent mixing equipment and a low-carbon decolorizing method.The decolorizing agent mixing equipment comprises a base, a mixing tank is arranged on the base, a height-adjustable lifting cantilever is arranged above the mixing tank, and an extrusion pipe is arranged on the side, close to the mixing tank, of the lifting cantilever; and after the lifting cantilever descends, the extrusion pipe extends into the mixing tank, a fixed pipe is arranged at the end, close to the mixing tank, of the extrusion pipe, a liquid outlet pipe is arranged at the end of the fixed pipe, and the extrusion pipe flows in the circumferential direction of the mixing tank through water flow discharged by the liquid outlet pipe. The liquid outlet pipe capable of generating vortex water flow is arranged at the bottom of the extrusion pipe, so that water in the mixing tank can be subjected to rotary mixing treatment, water at different depths can be mixed through suction and ejection of the extrusion pipe, and the mixing effect is improved again.

Description

Technical Field

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

[0002] The hair fibers of animals have good handfeel, soft luster, comfortable to wear close to the body, no itching sensation, antistatic performance, excellent warmth retention and scarcity, and are also called soft gold by the industry. However, many hair fibers such as yak hair, camel hair, some cashmere, wool, etc. have a certain color, which is difficult to meet the requirements of textiles for color diversity. Taking cashmere as an example, the value of cashmere is greatly affected by color. White cashmere is the most precious but only accounts for 40% of the total amount. The green and purple cashmere accounting for about 60% of the total amount has a low price due to limited coloring, and can be greatly increased in value after decolorization and use.

[0003] When the decolorizing agent is actually used, it needs to be diluted, so it is necessary to mix the decolorizing agent stock solution with the relevant dilution solution. However, some existing mixing devices only set a rotating stirring rod for stirring and processing, which leads to the problem of different concentrations at different heights of the liquid due to uneven stirring. Therefore, it needs to be improved.

[0004] Moreover, during the process of cleaning and decolorizing dark animal hair fibers, when the decolorizing agent is actually used, it needs to be diluted, so it is necessary to mix the decolorizing agent stock solution with the relevant dilution solution. However, some existing mixing devices only set a rotating stirring rod for stirring and processing, which leads to the problem of different concentrations at different heights of the liquid due to uneven stirring.

[0005] In addition, during the use of the decolorizing agent, the pH value and effective substances in the decolorizing agent will also be continuously consumed, and need to be replenished in real time according to the consumption degree. In the prior art, the decolorizing agent is exported, replenished and then led back into the fiber treatment container, resulting in complex equipment and high cost, which is not suitable for the treatment of small-batch and personalized fiber products; and if the decolorizing agent and other treatment liquids are directly replenished into the fiber treatment container, there will be a situation where stirring cannot be carried out and the solution concentration is uneven. Summary of the Invention

[0006] The purpose of the present invention is to provide a mixing device for decolorizing agents of dark animal hair fibers and a low-carbon decolorizing method to solve at least one of the above technical problems existing in the prior art.

[0007] To solve the above technical problems, a decolorizing agent mixing device for dark animal plush fibers provided by the present invention includes a base, a mixing tank is arranged on the base, a liftable cantilever with adjustable height is arranged above the mixing tank, an extrusion pipe is arranged on one side of the liftable cantilever close to the mixing tank. After the liftable cantilever descends, the extrusion pipe extends into the interior of the mixing tank. A fixed pipe is arranged at one end of the extrusion pipe close to the mixing tank, and a liquid outlet pipe is arranged at the end of the fixed pipe. The water flow discharged through the liquid outlet pipe of the extrusion pipe flows along the circumferential direction of the mixing tank.

[0008] As a preferred technical solution of the present invention, a suspension column is arranged on one side of the liftable cantilever close to the mixing tank. A piston is slidably connected inside the extrusion pipe, and a liquid extrusion assembly for driving the piston to lift is arranged 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 is fixedly connected to the outside of the sliding support rod. A buckle that synchronously lifts with the lifting ring is slidably connected to the outside of the lifting ring. One end of a push-pull rod is fixedly connected to the buckle, and the other end of the push-pull rod is fixedly connected to the piston. A vertical plate is arranged on the side of the liftable cantilever away from the mixing tank. A rotating shaft is rotatably connected to the end of the vertical plate. A deflecting rod is arranged at the end of the rotating shaft. One end of a connecting rod is rotatably connected to the end of the deflecting rod away from the rotating shaft, and the other end of the connecting rod is rotatably connected to a push rod slidably connected to the liftable cantilever. The push rod is fixedly connected to the sliding support rod. A first driving motor is arranged in the middle of the vertical plate, and the output shaft of the first driving motor is connected to the rotating shaft by means of gear transmission.

[0009] As a preferred technical solution of the present invention, a rotating support rod is rotatably connected to one end of the suspension column close to the mixing tank. The extrusion pipe is fixedly connected to the side of the rotating support rod away from the suspension column. An angle locking assembly for restricting the rotation of the rotating support rod is arranged on the sliding support rod. The angle locking assembly includes a slider slidably connected to the sliding support rod. A rotating rod is arranged on the side of the slider, and an L-shaped baffle for cooperating with the buckle is rotatably connected to the end of the rotating rod. A plurality of extrusion pipes are arranged on the outside of the rotating support rod and are evenly distributed relative to the center of the suspension column. The corresponding liquid outlet pipes of the plurality of extrusion pipes are circumferentially symmetrically distributed around the axis of the suspension column.

[0010] As a preferred technical solution of the present invention, the end of the fixed pipe is connected to a first three-way joint. The other two ends of the first three-way joint are respectively connected to a liquid outlet pipe and a liquid inlet pipe arranged in the reverse direction. A one-way valve that only allows water to enter the interior of the liquid inlet pipe is arranged inside the liquid inlet pipe.

[0011] As a preferred technical solution of the present invention, a guide column slidably connected to the liftable cantilever is arranged at the end of the base. The liftable cantilever is threadedly connected to a lifting screw rod arranged parallel to the guide column. A second driving motor is arranged on the base, and the output shaft of the second driving motor is connected to the lifting screw rod by means of gear transmission.

[0012] The second aspect of the present application discloses a low-carbon decolorization method. The decolorizing agent after being mixed and processed by the decolorizing agent mixing device for dark animal hair fibers can be used to decolorize dark animal hair fibers such as yak hair based on this low-carbon decolorization method.

[0013] A low-carbon decolorization method specifically includes the following steps: S10. Use the above-mentioned decolorizing agent mixing device to mix and stir the decolorizing agent mixture evenly; The decolorizing agent mixture includes the following components: 2-5 wt% of sodium persulfate; 0.2-0.8 wt% of sodium hexametaphosphate; 0.4-0.8% of sodium alkylbenzenesulfonate; 1-10 wt% of dimethylformamide; 20-40% of H 2 O 2 ; The balance is water; S20. Immerse the dark animal hair fibers in the decolorizing agent mixture for 1-3 hours; S30. During the immersion process, add an alkali solution to the decolorizing agent mixture to maintain the pH value of the decolorizing agent mixture at 9-10; S40. Air dry.

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

[0015] Furthermore, in step S30, the pH value of the decolorizing agent mixture is detected every 2-10 minutes; according to the detected pH value, the addition amount of the alkali solution is controlled.

[0016] Preferably, the alkali solution is sodium hydroxide liquid.

[0017] Adopting the above technical solutions, the present invention has the following beneficial effects: The present invention provides a decolorizing agent mixing device for dark animal hair fibers. By arranging a liquid outlet pipe that can generate a swirling water flow at the bottom of the extrusion pipe, the water body inside the mixing tank can be rotated and mixed by itself. At the same time, the extrusion pipe can also be stirred under the reaction force of the water flow ejected from the liquid outlet pipe, making the mixing dynamics of the entire mixing tank more, improving the mixing effect. And the suction and ejection of the extrusion pipe mix the water bodies at different depths, further improving the mixing effect; Particularly importantly, in the present invention, the mixing tank can be used as a container for decolorizing dark animal plush fibers. During the decolorization process, the decolorizing agent is replenished into the mixing tank in a timely manner according to the loss of the decolorizing agent, so as to maintain the set concentration and achieve the uniformity of the solution concentration throughout the tank body, thus solving the deficiencies of the prior art.

[0018] In the low-carbon decolorization method disclosed in the present application, the water consumption is greatly reduced. On the premise of ensuring a whiteness of 85-95%, the water consumption is reduced by 30-70%. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of the decolorizing agent mixing device for dark animal plush fibers in Example 1; Figure 2 For Figure 1 front view; Figure 3 For Figure 1 partial enlarged schematic diagram of A in Figure 4 It is a schematic structural diagram of the lifting cantilever in the decolorizing agent mixing device in Example 1; Figure 5 It is a schematic structural diagram of the liquid extrusion assembly in the decolorizing agent mixing device in Example 1; Figure 6 For Figure 5 right view; Figure 7 It is a schematic structural diagram of the lifting ring in the decolorizing agent mixing device in Example 1; Figure 8 It is a schematic structural diagram of the angle locking assembly in the decolorizing agent mixing device in Example 1; Figure 9 It is a schematic structural diagram of the buckle in the decolorizing agent mixing device in Example 1; Figure 10 It is a schematic structural diagram of the inside of the extrusion tube in the decolorizing agent mixing device; Figure 11 It is a schematic structural diagram of the first three-way joint in the decolorizing agent mixing device; Figure 12 It is a schematic plan view of the combined supplementary detection assembly in Example 3; Figure 13Schematic plan view of the split supplementary detection component in Embodiment 3; Figure 14 Schematic three-dimensional structure view of the connection between the branch pipe / detection pipe / supplementary pipe and the extrusion pipe.

[0021] Reference numerals: 1, base; 2, mixing tank; 3, lifting cantilever; 4, suspension column; 5, extrusion pipe; 6, fixed pipe; 7, liquid outlet pipe; 8, lifting ring; 9, buckle; 10, ejector rod; 11, support wheel; 12, vertical plate; 13, connecting rod; 14, deflection rod; 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 baffle; 22, rotating rod; 23, slider; 24, angle locking assembly; 25, rotating support rod; 26, push-pull rod; 27, piston; 28, liquid inlet pipe; 29, one-way valve; 30, first three-way joint; 31, guide post; 32, lifting lead screw; 33, fixing plate; 34, second driving motor; 35, third helical gear; 36, fourth helical gear; 37 - detection pipe; 38 - supplementary pipe; 39 - first control valve; 40 - second control valve; 41 - detection device; 42 - supplementary device; 43 - branch pipe, 44 - second three-way joint; 45 - blocking structure; 46 - animal wool fiber. Detailed implementation manners

[0022] The technical solutions of the present invention will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The following further explains and illustrates the present invention in conjunction with specific embodiments.

[0026] Embodiment 1 As Figures 1-11 , a decolorizing agent mixing device for dark animal plush fibers provided in this embodiment includes a base 1. A mixing tank 2 is provided on the base 1. The base 1 is horizontally placed. The mixing tank 2 is a cylindrical container with an open top. Above the mixing tank 2, a lifting cantilever 3 that can move up and down is horizontally provided. Below the right side of the lifting cantilever 3, a vertically arranged extrusion pipe 5 is provided. The lower end of the extrusion pipe 5 is the water outlet end. And when the lifting cantilever 3 descends, the extrusion pipe 5 can be inserted downward into the interior of the mixing tank 2, and at this time, the extrusion pipe 5 is close to the inner wall of the mixing tank 2. The upper end of a vertically arranged fixed pipe 6 is connected to the water outlet end below the extrusion pipe 5. The lower end of the fixed pipe 6 is horizontally provided with a liquid outlet pipe 7. The liquid outlet pipe 7 is communicated with the water outlet end of the extrusion pipe 5 through the fixed pipe 6. When the extrusion pipe 5 drains water outward, the liquid outlet pipe 7 discharges water, and the flow direction of the water is parallel to the circumferential direction of the mixing tank 2. Therefore, when the liquid outlet pipe 7 discharges water, the water flow pushes the water body inside the mixing tank 2 to flow, thereby generating a vortex effect at the bottom of the mixing tank 2, so as to perform the mixing process. And when the extrusion pipe 5 pumps water, the liquid at the bottom of the mixing tank 2 will enter the interior of the extrusion pipe 5, and the water body above the mixing tank 2 will drop. When the extrusion pipe 5 drains water again, the discharged water body will be mixed with the water body inside the mixing tank 2, thereby realizing the continuous mixing process of the water bodies at different depths of the mixing tank 2.

[0027] In a case of this embodiment, a suspension column 4 is vertically arranged at the right end of the lower surface of the lifting cantilever 3. A piston 27 is arranged inside the extrusion tube 5. A liquid extrusion assembly 20 is arranged in the middle of the suspension column 4. The liquid extrusion assembly 20 can push the piston 27 to move up and down inside the extrusion tube 5, thereby realizing the entry or discharge of liquid into or from the extrusion tube 5 and realizing the flow of water. 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 is of a cross-shaped structure. A sliding column is slidably connected to the middle of the sliding support rod 19. A horizontally arranged lifting ring 8 is fixedly connected to the outer end of the sliding support rod 19. The lifting ring 8 coincides with the axis of the suspension column 4. The lifting ring 8 is horizontally arranged, and a buckle 9 is slidably connected to the outside of the lifting ring 8. The buckle 9 is of a C-shaped structure. The buckle 9 is buckled on the outside of the lifting ring 8, and a support wheel 11 is arranged on the side of the buckle 9 close to the lifting ring 8. The support wheel 11 rolls on the outside of the lifting ring 8. Therefore, support wheels 11 are connected to both the upper and lower sides and the outside of the lifting ring 8, enabling the buckle 9 to lift synchronously with the lifting ring 8, and the buckle 9 can also rotate along the center of the lifting ring 8. The upper end of a vertically arranged push rod 26 is fixedly connected to the lower surface of the buckle 9, and the lower end of the push rod 26 is fixedly connected to the upper surface of the piston 27. Therefore, after the lifting ring 8 moves up and down, the piston 27 will also move up and down accordingly.

[0028] In a case of this embodiment, a vertical plate 12 is vertically arranged on the right side of the upper surface of the lifting cantilever 3. The middle of a left-right facing rotating shaft 18 is rotatably connected to the upper end of the vertical plate 12. The middle of the left and right ends of the rotating shaft 18 are fixedly connected to the middle of a deflection rod 14. A counterweight is arranged at one end of the deflection rod 14. The upper end of a connecting rod 13 is rotatably connected to the other end of the deflection rod 14. The lower end of the connecting rod 13 is rotatably connected to the upper end of a top rod 10. The middle of the top rod 10 is slidably connected to the lifting cantilever 3. The lower end of the top rod 10 is fixedly connected to both the left and right sides of the sliding support rod 19. A first driving motor 15 is arranged in the middle of the right side of the vertical plate 12. The output shaft of the first driving motor 15 is fixedly connected to a first helical gear 16. The first helical gear 16 is meshed with a second helical gear 17. The second helical gear 17 is fixedly connected to the right side of the rotating shaft 18. Therefore, the first driving motor 15 can make the rotating shaft 18 rotate through a gear transmission method. The rotating shaft 18 drives the deflection rod 14 to rotate. The deflection rod 14 pulls the top rod 10 to move up and down through the connecting rod 13, thereby making the lifting ring 8 move up and down, that is, realizing the up and down movement of the piston 27.

[0029] In a case of this embodiment, the middle part of the rotating support rod 25 is rotatably connected to the lower end of the hanging column 4, and one end of the rotating support rod 25 away from the hanging column 4 is fixedly connected to the outer wall of the extrusion tube 5. Therefore, the extrusion tube 5 can rotate along the center of the hanging column 4. An angle locking assembly 24 is arranged on the sliding support rod 19. The angle locking assembly 24 can limit the sliding of the buckle 9 on the lifting ring 8, thereby restricting the rotation of the extrusion tube 5 around the hanging column 4 to achieve angle locking processing. The angle locking assembly 24 includes sliders 23 slidably connected to the front and rear sides of the sliding support rod 19. Rotating rods 22 are arranged on the left and right sides of the slider 23. The end of the rotating rod 22 is rotatably connected to an L-shaped baffle 21. Under the action of gravity, the L-shaped baffle 21 is in a vertical state. When angle locking is required, the L-shaped baffle 21 can be rotated to a horizontal state facing away from the hanging column 4. After the buckle 9 rotates to the front and rear sides of the lifting ring 8, the slider 23 is slid in a direction away from the hanging column 4. Due to the certain deformation of the L-shaped baffle 21 itself, the L-shaped baffle 21 will buckle on the left and right sides of the buckle 9. At this time, the buckle 9 cannot slide on the lifting ring 8, thus realizing the angle locking processing of the extrusion tube 5.

[0030] In a case of this embodiment, a plurality of extrusion tubes 5 are arranged on the outer side of the rotating support rod 25 and are evenly distributed relative to the axis of the hanging column 4. When only one extrusion tube 5 is provided in the mixing device, the force on the rotating support rod 25 is unidirectional. At this time, the rotating support rod 25 is in a cantilever beam state. Therefore, a plurality of extrusion tubes 5 can be provided, and the extrusion tubes 5 are evenly distributed around the hanging column 4, so that the rotating support rod 25 is stressed on all sides, improving the stability. However, the more extrusion tubes 5 are designed, the more it occupies the mixing space of the reagent inside the mixing tank 2. Therefore, it is not the more the better. In this application, two extrusion tubes 5 are adopted. Therefore, the middle part of the cross-bar-shaped rotating support rod 25 is rotatably connected to the lower end of the hanging column 4, and the left and right ends of the rotating support rod 25 are fixedly connected to the extrusion tubes 5. The extrusion tubes 5 on both sides can output the power of stirring, making the force on the hanging column 4 stable. The liquid outlet tubes 7 corresponding to the plurality of extrusion tubes 5 are circumferentially symmetrically distributed around the axis of the hanging column 4. For example, according to the attached Figure 2 description of the state, two extrusion tubes 5 are provided in this application. The liquid outlet tube 7 below the left extrusion tube 5 is arranged backward, and the liquid outlet tube 7 corresponding to the right extrusion tube 5 is arranged forward. Therefore, from the top view, the water flows sprayed from the liquid outlet tubes 7 on the left and right sides are both clockwise, thus avoiding the problem of mutual collision. And the liquid outlet tube 7 is designed into an arc-shaped structure, so that the water flow sprayed from the liquid outlet tube 7 can flow more smoothly along the inner wall of the mixing tank 2.

[0031] In a case of this embodiment, the lower end of the fixed pipe 6 is connected to the joint at the upper middle part of the first three-way joint 30. There are also two joints provided at the front and rear ends of the first three-way joint 30, which are respectively connected to the liquid outlet pipe 7 and the liquid inlet pipe 28. And a one-way valve 29 is provided inside the liquid inlet pipe 28, so that the water body can only enter the inside of the liquid inlet pipe 28 from the outside, but the liquid inlet pipe 28 cannot discharge the liquid. This enables that when the extrusion pipe 5 is discharging liquid, the water flow can only be discharged through the liquid outlet pipe 7. When the water flow is pumping liquid, the water flow can enter through the liquid inlet pipe 28 and the liquid outlet pipe 7 simultaneously. The specific working mode will be described in detail in the subsequent process.

[0032] In a case of this embodiment, a guide post 31 is vertically provided at the left end of the upper surface of the base 1. The left end of the horizontally arranged lifting cantilever 3 is slidably connected above the guide post 31. And a lifting screw rod 32 is vertically provided on the right side of the guide post 31. The upper part of the lifting screw rod 32 is threadedly connected to the lifting cantilever 3. The top end of the lifting screw rod 32 is rotatably connected to the right end of the fixing plate 33. The left end of the fixing plate 33 is fixedly connected to the upper end of the guide post 31. The lower end of the lifting screw rod 32 is rotatably connected to the base 1. And a second driving motor 34 is provided on the base 1. The output shaft of the second driving motor 34 is fixedly connected to a third bevel gear 35. The third bevel gear 35 meshes with a fourth bevel gear 36. The fourth bevel gear 36 is fixedly connected to the lower part of the lifting screw rod 32. The second driving motor 34 drives the lifting screw rod 32 to rotate by means of gear transmission. The lifting screw rod 32 pushes the lifting cantilever 3 to move up and down along the guide post 31, so as to adjust the height of the right extrusion pipe 5.

[0033] During the implementation of this embodiment, first start the second driving motor 34. The second driving motor 34 makes the lifting cantilever 3 move upward through the lifting screw rod 32. Place the mixing tank 2 above the right side of the base 1, and roughly align the center of the mixing tank 2 with the center of the suspension column 4. Pour the decolorizing agent stock solution and the diluent to be mixed into the mixing tank 2. At this time, reverse-start the second driving motor 34, and the lifting cantilever 3 will move downward. The extrusion pipe 5 is inserted into the mixing tank 2, and the liquid outlet pipe 7 and the liquid inlet pipe 28 are located at the bottom of the mixing tank 2. At this time, preliminary mixing treatment can be carried out.

[0034] The water body rotates and mixes. The position of the manual rotary buckle 9 on the lifting ring 8 is adjusted. The buckle 9 is rotated to the front and back sides of the lifting ring 8. At this time, the L-shaped baffle 21 can be rotated to the horizontal state, and the slider 23 is slid in the direction of the buckle 9 so that the two L-shaped baffles 21 just catch on the left and right sides of the buckle 9. The position of the buckle 9 on the lifting ring 8 is locked. At this time, the first drive motor 15 can be started. The first drive motor 15 drives the rotation of the rotating shaft 18 through gear transmission. The rotating shaft 18 drives the lifting ring 8 to move up and down through the crank structure composed of the deflection rod 14 and the connecting rod 13. The lifting ring 8 drives the piston 27 to move up and down through the push-pull rod 26. When the piston 27 moves upward, the water flow enters the inside of the extrusion pipe 5 through the liquid outlet pipe 7 and the liquid inlet pipe 28. When the piston 27 moves downward, the water flow is discharged through the liquid outlet pipe 7. The water flows discharged from both sides generate a clockwise vortex when viewed from above in the liquid outlet pipe 7, so as to perform the mixing process through the rotation of the water flow itself. And because the extrusion pipe 5 continuously pumps the water body at the bottom in and out, the water body at the bottom is continuously remixed in the mixing tank 2, so that the water bodies at different heights are effectively mixed. And when the water flow vortex is formed, the liquid inlet pipe 28 located in the opposite direction of the liquid outlet pipe 7 will be opposite to the direction of the water flow. At this time, if the piston 27 moves upward to pump the liquid, the water body at the end of the liquid inlet pipe 28 will directly flow into the inside of the liquid inlet pipe 28. At this time, the pumping efficiency of the liquid inlet pipe 28 is higher than that when the water body is stationary. At this time, the water inflow efficiency of the liquid inlet pipe 28 is higher than the water inflow efficiency of the liquid outlet pipe 7, so as to reduce the rotational speed loss caused by the rotation of the water body during pumping. Therefore, as the piston 27 continuously moves up and down, the cooperation between the liquid outlet pipe 7 and the liquid outlet pipe 7 can continuously generate a clockwise vortex at the bottom of the water body. Through the clockwise vortex of the water body itself and the suction and discharge of the extrusion pipe 5 itself, the preliminary mixing process is realized.

[0035] Stirring and mixing process: After the water body itself has been mixed for a period of time, stop the first drive motor 15, disconnect the L-shaped baffle 21 from the buckle 9. Under the action of gravity, the L-shaped baffle 21 rotates to the vertical state. The buckle 9 can rotate along the lifting ring 8, and the L-shaped baffle 21 in the vertical state does not affect the rotation of the buckle 9. At this time, the first drive motor 15 can be started again. The buckle 9 sliding along the lifting ring 8 will move up and down synchronously with the lifting ring 8. At this time, the piston 27 still moves up and down inside the extrusion tube 5. When the liquid outlet pipe 7 of the extrusion tube 5 sprays out water flow, the reaction force of the water flow will cause the extrusion tube 5 to rotate counterclockwise around the suspension column 4. As the liquid outlet pipe 7 intermittently sprays out water flow, under the action of inertia, the extrusion tube 5 will continuously rotate counterclockwise around the suspension column 4. At this time, the original water body in the mixing tank 2 will still rotate in the opposite direction relative to the movement of the liquid inlet pipe 28, so that the liquid inlet efficiency of the liquid inlet pipe 28 is still higher than that of the liquid outlet pipe 7. At this time, on the one hand, the liquid outlet pipe 7 continuously sprays out the water body rotating clockwise, and on the other hand, the extrusion tube 5 itself performs counterclockwise stirring treatment in the mixing tank 2, making the impact efficiency of the water body in the extrusion tube 5 and the mixing tank 2 higher, thereby improving the stirring effect of the extrusion tube 5 and making the mixing effect of the water body inside the mixing tank 2 better.

[0036] Discharging process: After the liquid inside the mixing tank 2 has been stirred, the first drive motor 15 can be stopped when the piston 27 is at the bottom of the extrusion tube 5. At this time, start the second drive motor 34 to make the lifting cantilever 3 move upward, so that the liquid outlet pipe 7 and the liquid inlet pipe 28 are higher than the water surface height inside the mixing tank 2. Then start the first drive motor 15 again. The piston 27 first moves upward, and the liquid outlet pipe 7 and the liquid inlet pipe 28 suck in gas. After standing for a period of time, the gas will flow to the upper part of the extrusion tube 5. At this time, there is a small amount of liquid remaining at the bottom of the extrusion tube 5. Then the piston 27 moves downward again, and the water body at the bottom of the extrusion tube 5 will be discharged through the liquid outlet pipe 7. Since the liquid inlet pipe 28 is shorter, the remaining liquid is less. And during the process of the gas flowing out after the liquid outlet pipe 7 has drained the water, the remaining liquid inside the liquid inlet pipe 28 will also be taken away. The small amount of liquid finally remaining in the liquid inlet pipe 28 can be ignored and the subsequent stirring process can continue. Only when the entire mixing equipment is not used for a long time is it necessary to clean the liquid inlet pipe 28. At this time, make the lifting cantilever 3 move upward again through the second drive motor 34, so that the liquid inlet pipe 28 and the liquid outlet pipe 7 are completely separated from the mixing tank 2, and take out the mixing tank 2. At this time, the decolorizing agent dilution liquid that has been mixed inside the mixing tank 2 can be poured out.

[0037] The present invention is applicable to a mixing device for a decolorizing agent of dark animal plush fibers. By arranging a liquid outlet pipe 7 capable of generating a swirling water flow at the bottom of the extrusion pipe 5, the water body inside the mixing tank 2 can be subjected to rotational mixing treatment. At the same time, the extrusion pipe 5 can also be subjected to stirring treatment under the reaction force of the water flow ejected from the liquid outlet pipe 7, so that there are more mixing dynamics in the entire mixing tank 2, improving the mixing effect. Moreover, the suction and ejection of the extrusion pipe 5 mix the water bodies at different depths, further improving the mixing effect.

[0038] Example 2 This example discloses a low-carbon decolorization method. The decolorizing agent used is subjected to mixing treatment by the mixing device for a decolorizing agent of dark animal plush fibers disclosed in Example 1, and then used to decolorize dark animal plush fibers such as yak wool. The decolorization method specifically includes the following steps: S10. Use the above-mentioned mixing device for the decolorizing agent to mix and stir the decolorizing agent mixture evenly; The decolorizing agent mixture includes the following components: 2 - 5 wt% of sodium persulfate; 0.2 - 0.8 wt% of sodium hexametaphosphate (or polyethylenepolyamine polyalkylenephosphonate); 0.4 - 0.8% of sodium alkylbenzene sulfonate; 1 - 10 wt% of dimethylformamide; 20 - 40% of H 2 O 2 ; The balance is water; S20. Immerse the dark animal plush fibers in the decolorizing agent mixture for 1 - 3 hours; the temperature of the decolorizing agent mixture is 20 - 40 °C, and the immersion bath ratio is 1:50 - 1:70.

[0039] S30. During the immersion process, add an alkali solution to the decolorizing agent mixture to maintain the pH value of the decolorizing agent mixture at 9 - 10; Specifically, detect the pH value of the decolorizing agent mixture every 2 - 10 minutes; according to the detected pH value, control the addition amount of the alkali solution. The alkali solution is preferably sodium hydroxide liquid.

[0040] S40. After drying, obtain the decolorized dark animal plush fibers. The dark animal plush fibers commonly include dark cashmere, dark wool, yak wool or hair, camel hair, etc.

[0041] In the low-carbon decolorization method disclosed in this application, the water consumption is greatly reduced. On the premise of ensuring a whiteness of 60, the water consumption is reduced by 30 - 70%.

[0042] Example 3 As Figures 12-14As shown in the figure, this embodiment discloses a mixing device for decolorizing agents of dark animal plush fibers. Different from Embodiment 1, after mixing the decolorizing agents, animal plush fibers 46 are added into the device for stirring and decolorizing. The device further includes a supplementary detection component. The supplementary detection component is used to extract liquid from the extrusion tube 5 for sampling and detection or inject reagents into the extrusion tube 5.

[0043] As a further implementation manner of this embodiment, the supplementary detection component includes a branch pipe 43 and a control valve. The control valve is used to control the branch pipe 43 and is in a normally closed state. The branch pipe 43 is communicated with the extrusion tube 5 (as Figure 14 shown). When the piston 27 is pressed down, the control valve is opened, and part of the liquid in the extrusion tube 5 is discharged through the branch pipe 43. The discharged liquid is collected for detection, and the pH value and the concentration of each component of the liquid can be obtained. When the piston 27 rises, the control valve is opened, and reagents such as alkali liquor or hydrogen peroxide are introduced into the branch pipe. Then the reagents can be sucked into the extrusion tube 5. The control valve is closed, and the piston 27 descends, and the reagents are discharged from the extrusion tube 5 into the mixing tank 2.

[0044] As Figure 13 shown, as a further implementation manner of this embodiment, the supplementary detection component includes a detection tube 37, a supplementary tube 38, a first control valve 39, a second control valve 40, a detection device 41, and a supplementary device 42. Both ends of the detection tube 37 are respectively connected to the detection device 41 and the extrusion tube 5. Both ends of the supplementary tube 38 are respectively connected to the supplementary device 42 and the extrusion tube 5. The first control valve 39 and the second control valve 40 are respectively arranged on the detection tube 37 and the supplementary tube 38.

[0045] As a further implementation manner of this embodiment, the detection tube 37 and the supplementary tube 38 can be arranged on the same extrusion tube 5 or respectively arranged on two different extrusion tubes 5.

[0046] As Figure 12 shown, as a further implementation manner of this embodiment, in order to reduce the complexity of the device, the supplementary detection component 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 tube 5, and the other end is connected to the detection tube 37 and the supplementary tube 38 through the second three-way joint 44. One end of the detection tube 37 and the supplementary tube 38, which is far away from the second three-way joint 44, is respectively connected to the detection device 41 and the supplementary device 42; A first control valve 39 and a second control valve 40 are respectively arranged on the detection tube 37 and the supplementary tube 38.

[0047] As Figure 14 As shown, as a further implementation manner of this embodiment, a blocking structure 45 is further arranged on the liquid inlet pipe and the liquid outlet pipe to prevent animal wool fibers 46 from entering.

[0048] As a preferred implementation manner of this embodiment, the blocking structure 45 is a structure such as an orifice plate or a mesh sleeve.

[0049] The detection device 41 and the supplementary device 42 can select existing automatic detection and sampling devices. This technical content is prior art, and this application further defines it here. In addition, the detection device 41 and the supplementary device 42 can also be replaced by manual operations of an operator.

[0050] The difference between this embodiment and Embodiment 1 is that after the dark animal wool fiber decolorizing agent mixing device disclosed in this embodiment mixes the decolorizing agent, the dark animal wool fibers 46 are directly put into the mixing tank for decolorization. The decolorization principle is that persulfate and hydrogen peroxide and other substances are configured to act on the melanosomes of animal fibers in a weakly alkaline environment. The main component in the melanosomes is 5,6-dihydroxyindole, which is oxidized and degraded into smaller small molecule substances. After the melanosomes are degraded, the color of the dark animal fibers becomes lighter. And in this process, the persulfate will gradually weaken the alkalinity of the overall solution during the reaction. If no artificial intervention is applied, the solution in the mixing tank will even gradually become acidic. Therefore, it is necessary to add alkali solution in a timely manner to keep the pH value of the decolorizing agent solution between 9 and 10.

[0051] In addition, during the decolorization process, hydrogen peroxide will also be continuously consumed, resulting in a gradual decrease in the hydrogen peroxide content and a gradual weakening of the decolorization effect. Therefore, it is necessary to take samples and detect in real time during the decolorization process, and add hydrogen peroxide according to the detection results.

[0052] For the addition of alkali solution and hydrogen peroxide, it is necessary to avoid direct contact between high-concentration alkali solution and hydrogen peroxide and the animal wool fibers 46, causing corrosion to the animal wool fibers 46. Therefore, it is necessary to preliminarily dilute the alkali solution and hydrogen peroxide before adding them, and then drain them into the mixing tank and stir quickly.

[0053] When this embodiment is in use, first stir the decolorizing agent as described in Embodiment 1, then add 46 dark animal plush fibers to the mixing tank, and then continue to stir by inserting and extracting the piston 27. Compared with the commonly used propeller stirring in the prior art, the device of the present application will not have the phenomenon of propeller entanglement during the stirring process. During the stirring process, sampling detection and reagent supplementation are carried out regularly. The first control valve 39 and the second control valve 40 are in a normally closed state during the stirring process.

[0054] The specific operation of sampling detection is as follows: when the piston 27 descends, open the first control valve 39, and part of the liquid in the extrusion tube 5 is squeezed into the branch tube 43. The liquid enters the detection device 41 through the branch tube 43 and the detection tube 37. Close the first control valve 39, and measure the pH value and hydrogen peroxide concentration of the liquid through the detection device 41, and determine the amount of alkali solution and hydrogen peroxide that need to be added to the mixing tank according to the measurement results, and carry out reagent supplementation.

[0055] The specific operation of actual supplementation is as follows: when the piston 27 ascends, open the second control valve 40, and the reagent in the supplementation device 42 is sucked into the extrusion tube 5 through the supplementation tube 38 and the branch tube 43, and is preliminarily diluted with the liquid in the extrusion tube 5. Close the second control valve 40, and the piston 27 descends, and the preliminarily diluted liquid in the extrusion tube 5 is discharged into the mixing tank.

[0056] The dark animal plush fiber decolorizing agent mixing device disclosed in this embodiment can not only complete the mixing of the decolorizing agent, but also directly carry out the decolorization of the dark animal plush fiber 46. During the decolorization process, continuous stirring ensures that the plush fiber will not be entangled with the device. During use, the extraction and supplementation of the decolorizing agent are carried out through the cooperation of the supplementary detection component and the piston 27 in the extrusion tube 5. Compared with the commonly used direct supplementation of alkali solution and hydrogen peroxide in the prior art, in this embodiment, the reagent is first supplemented into the extrusion tube 5 for preliminary dilution, and then discharged into the mixing tank for dilution and contact with the dark animal plush fiber 46, which can effectively avoid fiber damage caused by the dark animal plush fiber 46 reaching the local high-concentration alkali solution and hydrogen peroxide area.

[0057] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dark animal hair fiber decolorizing agent mixing device, comprising a base, a mixing tank is arranged on the base, characterized in that: A height-adjustable lifting cantilever is arranged above the mixing tank, and an extrusion tube is arranged on the side of the lifting cantilever close to the mixing tank. After the lifting cantilever is lowered, the extrusion tube extends into the mixing tank, and a fixed tube is arranged on the end of the extrusion tube close to the mixing tank, and a liquid outlet pipe is arranged on the end of the fixed tube. The water discharged from the extrusion tube through the liquid outlet pipe flows along the circumference of the mixing tank.

2. The dark animal hair fiber decolorizing agent mixing device according to claim 1, characterized in that: A suspension column is arranged on one side of the lifting cantilever close to the mixing tank, a piston is slidably connected inside the extrusion tube, and a liquid extrusion assembly for driving the piston to lift is arranged in the middle of the suspension column.

3. The dark animal hair fiber decolorizing agent mixing device according to claim 2, characterized in that: The liquid extrusion assembly includes a sliding support rod slidably connected to the middle of the suspension column, the outside of the sliding support rod is fixedly connected to a lifting ring, the outer side of the lifting ring is slidably connected to a buckle that rises and falls synchronously with the lifting ring, the buckle is fixedly connected to one end of the push-pull rod, and the other end of the push-pull rod is fixedly connected to the piston.

4. The dark animal hair fiber decolorizing agent mixing device according to claim 3, characterized in that: A vertical plate is provided on the side of the lifting cantilever away from the mixing tank, and the end of the vertical plate is rotatably connected to a rotating shaft, and a deflection rod is provided at the end of the rotating shaft. The end of the deflection rod away from the rotating shaft is rotatably connected to one end of a connecting rod, and 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 drive motor is provided in the middle of the vertical plate, and the output shaft of the first drive motor is connected to the rotating shaft through a gear transmission.

5. The dark animal hair fiber decolorizing agent mixing device according to claim 3, characterized in that: The end of the suspension column close to the mixing tank is rotatably connected to a rotating support rod, and the side of the rotating support rod away from the suspension column is fixedly connected to the extrusion tube. The sliding support rod is provided with an angle locking component that limits the rotation of the rotating support rod.

6. The dark animal hair fiber decolorizing agent mixing device according to claim 5, characterized in that: The angle locking assembly comprises a sliding block slidably connected to a sliding support rod, a rotating rod is arranged on the side of the sliding block, and an L-shaped baffle with a snap fit is rotatably connected to the end of the rotating rod.

7. The dark animal hair fiber decolorizing agent mixing device according to claim 5, characterized in that: A plurality of extrusion tubes evenly distributed relative to the center of the suspension column are arranged on the outer side of the rotating support rod, and the liquid outlet tubes corresponding to the plurality of extrusion tubes are symmetrically distributed around the axis of the suspension column.

8. The dark animal hair fiber decolorizing agent mixing device according to claim 1, characterized in that: The end of the fixed pipe is connected to the first three-way joint, and the other two ends of the first three-way joint are respectively connected to the liquid outlet pipe and the liquid inlet pipe arranged in opposite directions. A one-way valve is arranged inside the liquid inlet pipe to only allow water to flow into the liquid inlet pipe.

9. The dark animal hair fiber decolorizing agent mixing device according to claim 1, characterized in that: A guide column slidably connected to the lifting cantilever is arranged at the end of the base, and the lifting cantilever is threadedly connected to a lifting screw rod arranged parallel to the guide column. A second drive motor is arranged on the base, and the output shaft of the second drive motor is connected to the lifting screw rod through a gear transmission.

10. A low-carbon decolorization method based on the decolorant mixing device according to any one of claims 1 to 9, comprising the following steps: S10. The decolorant mixture is mixed and stirred evenly using the decolorant mixing device; The decolorizing agent mixture includes the following components: 2~5wt% sodium persulfate; 0.2~0.8wt% sodium hexametaphosphate; 0.4~0.8% sodium alkylbenzene sulfonate; 1~10wt% dimethylformamide; 20~40% H2O2; The balance is water; S20. Soaking the dark animal hair fibers in the decolorizing agent mixture for 1-3 hours; S30. During the soaking process, an alkali solution is added to the decolorizing agent mixture to maintain the pH value of the decolorizing agent mixture at 9-10; S40. Let dry.

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