Dark animal hair fiber decolorant mixing device and low-carbon decolorization method

Abstract

The present invention relates to the technical field of decolorant mixing, and provides a decolorant mixing device for dark animal hair fibers and a low-carbon decolorization method. The decolorant mixing device includes a base, a mixing tank is provided on the base, a height-adjustable lifting cantilever is provided above the mixing tank, an extrusion pipe is provided on the side of the lifting cantilever close to the mixing tank, and after the lifting cantilever is lowered, the extrusion pipe extends into the mixing tank, a fixed pipe is provided at one end of the extrusion pipe close to the mixing tank, and a liquid outlet pipe is provided at the end of the fixed pipe, and the water discharged from the extrusion pipe through the liquid outlet pipe flows along the circumference of the mixing tank. The present invention provides a liquid outlet pipe that can generate a vortex water flow at the bottom of the extrusion pipe, so that the water inside the mixing tank itself can be subjected to a rotational mixing process, and the suction and discharge of the extrusion pipe allow water bodies of different depths to be mixed, thereby further improving the mixing effect.

Description

Technical Field

[0001] The invention relates to the technical field of decolorant mixing, in particular to a decolorant mixing device for dark animal hair fibers and a low-carbon decolorization method. Background Art

[0002] Animal down fibers are known as "soft gold" in the textile industry for their pleasant feel, soft sheen, comfortable, non-itching feel, antistatic properties, excellent warmth retention, and scarcity. However, many down fibers, such as yak and camel hair, some cashmere, and wool, are pigmented, making them difficult to meet the diverse color demands of textiles. Cashmere, for example, is significantly impacted by its color. White cashmere is the most valuable, but it only accounts for 40% of the total. Blue and purple cashmere, which account for approximately 60% of the total, are relatively inexpensive due to limited coloring. However, their value can be significantly increased through bleaching and reuse.

[0003] The decolorant needs to be diluted during actual use, so the decolorant stock solution needs to be mixed with the relevant dilution solution. However, some existing mixing devices are only equipped with a rotating stirring rod for stirring, which leads to different concentrations at different heights of the liquid due to uneven stirring, so it needs to be improved.

[0004] Furthermore, in the process of cleaning and decolorizing plush fibers, such as dark animal hair fibers, the decolorizing agent needs to be diluted during actual use. Therefore, the decolorizing agent stock solution needs to be mixed with the relevant diluted solution. However, some existing mixing devices are only provided with a rotating stirring rod for stirring, which results in different concentrations at different heights of the liquid due to uneven stirring.

[0005] In addition, during the use of the decolorizer, the pH value and effective substances in the decolorizer will be continuously consumed, and need to be replenished in real time according to the degree of consumption. In the existing technology, the decolorizer is discharged, replenished, and then returned to the fiber processing container. The equipment is complex and costly, and is not suitable for the processing of small batches and personalized fiber products. If the decolorizer and other processing liquids are directly added to the fiber processing container, stirring cannot be carried out and the solution concentration is uneven. Summary of the Invention

[0006] The object of the present invention is to provide a dark animal hair fiber decolorant mixing device and a low-carbon decolorization method to solve at least one technical problem in the above-mentioned prior art.

[0007] In order to solve the above technical problems, the present invention provides a dark animal hair fiber decolorant mixing device, which includes a base, a mixing tank is provided on the base, a height-adjustable lifting cantilever is provided above the mixing tank, an extrusion tube is provided on the side of the lifting cantilever close to the mixing tank, and after the lifting cantilever is lowered, the extrusion tube extends into the interior of the mixing tank, a fixed tube is provided at one end of the extrusion tube close to the mixing tank, and a liquid outlet pipe is provided at the end of the fixed tube, and the water discharged from the extrusion tube through the liquid outlet pipe flows along the circumference of the mixing tank.

[0008] As a preferred technical solution of the present invention, a suspension column is provided on the side of the lifting cantilever close to the mixing tank, a piston is slidably connected to the inside of the extrusion tube, and a liquid extrusion assembly that drives the piston to rise and fall is provided 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, the outside of the sliding support rod is fixedly connected to the lifting ring, the outside 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. A vertical plate is provided on the side of the lifting cantilever away from the mixing tank, the end of the vertical plate is rotatably connected to the rotating shaft, the end of the rotating shaft is provided with a deflection rod, the end of the deflection rod away from the rotating shaft is rotatably connected to one end of the connecting rod, the other end of the connecting rod is rotatably connected to a top rod slidably connected to the lifting cantilever, the top rod is fixedly connected to the sliding support rod, and 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 by a gear transmission.

[0009] As a preferred technical solution of the present invention, 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 assembly that limits the rotation of the rotating support rod. The angle locking assembly includes a slider slidably connected to the sliding support rod, the side of the slider is provided with a rotating rod, and the end of the rotating rod is rotatably connected to an L-shaped baffle with a snap-fit. The outer side of the rotating support rod is provided with multiple extrusion tubes evenly distributed relative to the center of the suspension column, and the liquid outlet pipes corresponding to the multiple extrusion tubes are symmetrically distributed around the axis of the suspension column.

[0010] As a preferred technical solution of the present invention, the end of the fixed tube 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 set in opposite directions. A one-way valve is provided inside the liquid inlet pipe to only allow water to flow into the liquid inlet pipe.

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

[0012] The second aspect of the present application discloses a low-carbon decolorization method. The decolorant mixed by the dark animal hair fiber decolorant mixing equipment can be used to decolorize dark animal hair fibers such as yak hair based on the low-carbon decolorization method.

[0013] A low-carbon decolorization method specifically comprises the following steps:

[0014] S10. The decolorant mixture is mixed and stirred evenly using the above-mentioned decolorant mixing device;

[0015] The decolorizing agent mixture includes the following components:

[0016] 2~5wt% sodium persulfate;

[0017] 0.2~0.8wt% sodium hexametaphosphate;

[0018] 0.4~0.8% sodium alkylbenzene sulfonate;

[0019] 1~10wt% dimethylformamide;

[0020] 20~40% H2O2;

[0021] The balance is water;

[0022] S20. The dark animal hair fiber is immersed in the decolorizing agent mixture for 1-3 hours;

[0023] S30 soaking process, adding alkali to the decolorizing agent mixture, maintaining the pH value of the decolorizing agent mixture at 9-10;

[0024] S40. Let dry.

[0025] 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.

[0026] Furthermore, in step S30, the pH value of the decolorizing agent mixture is detected every 2-10 minutes; and the amount of alkaline solution added is controlled according to the detected pH value.

[0027] Preferably, the alkali solution is sodium hydroxide liquid.

[0028] By adopting the above technical solution, the present invention has the following beneficial effects:

[0029] The present invention provides a dark animal hair fiber decolorant mixing device. By arranging a liquid outlet pipe capable of generating a vortex water flow at the bottom of an extrusion pipe, the water inside the mixing tank itself can be subjected to a rotational mixing process. 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, thereby increasing the mixing dynamics of the entire mixing tank and improving the mixing effect. In addition, the suction and ejection of the extrusion pipe allow water bodies of different depths to be mixed, further improving the mixing effect.

[0030] More importantly, the mixing tank of the present invention can be used as a decolorization container for dark animal hair fibers. During the decolorization process, the decolorizer is replenished in the mixing tank in a timely manner according to the loss of the decolorizer. While maintaining the set concentration, the solution concentration in the entire tank can be uniform, which solves the shortcomings of the existing technology.

[0031] The low-carbon decolorization method disclosed in the present application greatly reduces water consumption. Under the premise of ensuring a whiteness of 85-95%, the water consumption is reduced by 30-70%. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a schematic structural diagram of the dark animal hair fiber decolorizing agent mixing device in Example 1;

[0034] Figure 2 for Figure 1 Front view of

[0035] Figure 3 for Figure 1 A partial enlarged schematic diagram;

[0036] Figure 4 This is a schematic structural diagram of the lifting cantilever in the decolorant mixing device in Example 1;

[0037] Figure 5 Schematic diagram of the structure of the liquid extrusion component in the decolorant mixing device in Example 1;

[0038] Figure 6 for Figure 5 Right view;

[0039] Figure 7 This is a schematic structural diagram of the lifting ring in the decolorant mixing device in Example 1;

[0040] Figure 8 Schematic diagram of the structure of the angle locking assembly in the decolorant mixing device in Example 1;

[0041] Figure 9 This is a schematic structural diagram of the buckle in the decolorant mixing device in Example 1;

[0042] Figure 10 This is a schematic diagram of the structure inside the extrusion tube in the decolorant mixing equipment;

[0043] Figure 11 It is a structural schematic diagram of the first three-way joint in the decolorant mixing device;

[0044] Figure 12 Schematic diagram of the planar structure of the combined supplementary detection component in Example 3;

[0045] Figure 13 Schematic diagram of the planar structure of the separate supplementary detection component in Example 3;

[0046] Figure 14 This is a schematic diagram of the three-dimensional structure of the connection between the branch tube / detection tube / supplementary tube and the extrusion tube.

[0047] Reference numerals:

[0048] 1. Base; 2. Mixing tank; 3. Lifting cantilever; 4. Suspension column; 5. Extrusion tube; 6. Fixed tube; 7. Liquid outlet tube; 8. Lifting ring; 9. Buckle; 10. Ejector rod; 11. Support wheel; 12. Vertical plate; 13. Connecting rod; 14. Deflection rod; 15. First drive motor; 16. First bevel gear; 17. Second bevel gear; 18. Rotating shaft; 19. Sliding support rod; 20. Liquid extrusion assembly; 21. L-shaped baffle; 22. Rotating rod; 23. Sliding block; 24. Angle locking assembly; 25. Rotating Rotating support rod; 26. Push-pull rod; 27. Piston; 28. Liquid inlet pipe; 29. ​​One-way valve; 30. First three-way joint; 31. Guide column; 32. Lifting screw; 33. Fixed plate; 34. Second drive motor; 35. Third bevel gear; 36. Fourth bevel gear; 37-Detection tube; 38-Supplementary tube; 39-First control valve; 40-Second control valve; 41-Detection equipment; 42-Supplementary equipment; 43-Branch pipe, 44-Second three-way joint; 45-Blocking structure; 46-Animal plush fiber. DETAILED DESCRIPTION

[0049] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0052] The present invention will be further explained below with reference to specific embodiments.

[0053] Example 1

[0054] like Figures 1-11 The present embodiment provides a dark animal hair fiber decolorant mixing device, comprising a base 1, on which a mixing tank 2 is provided. The base 1 is placed horizontally, and the mixing tank 2 is a cylindrical container with an open top. A lifting cantilever 3 that can move up and down is horizontally provided above the mixing tank 2. A vertically provided extrusion tube 5 is provided at the lower right side of the lifting cantilever 3. The lower end of the extrusion tube 5 is a water outlet end, and when the lifting cantilever 3 is lowered, the extrusion tube 5 can be downwardly inserted into the interior of the mixing tank 2, and the extrusion tube 5 is close to the inner wall of the mixing tank 2 at this time. The water outlet end below the extrusion tube 5 is connected to the upper end of a vertically provided fixed tube 6, and a liquid outlet pipe 7 is horizontally provided at the lower end of the fixed tube 6. The liquid outlet pipe 7 is connected to 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 circumference of the mixing tank 2. Therefore, after the liquid outlet pipe 7 discharges water, the water flow pushes the water inside the mixing tank 2 to flow, thereby generating a vortex effect at the bottom of the mixing tank 2, thereby performing a 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 above the mixing tank 2 will drop. When the extrusion pipe 5 drains water again, the discharged water will mix with the water inside the mixing tank 2, thereby realizing continuous mixing of water at different depths in the mixing tank 2.

[0055] In one case of this embodiment, a suspension column 4 is vertically provided at the right end of the lower surface of the lifting cantilever 3, a piston 27 is provided inside the extrusion tube 5, and a liquid extrusion component 20 is provided in the middle of the suspension column 4. The liquid extrusion component 20 can push the piston 27 to move up and down inside the extrusion tube 5, thereby realizing the liquid entering or discharging the extrusion tube 5 and realizing the flow of water. The liquid extrusion assembly 20 includes a sliding support rod 19 that is slidably connected to the middle part of the suspension column 4. The sliding support rod 19 is a cross-shaped structure. The middle part of the sliding support rod 19 is slidably connected to the sliding column. The outer end of the sliding support rod 19 is fixedly connected to a horizontally arranged lifting ring 8. The lifting ring 8 coincides with the axis of the suspension column 4. The lifting ring 8 is horizontally arranged, and the outer side of the lifting ring 8 is slidably connected with a buckle 9. The buckle 9 is a C-shaped structure. The buckle 9 is buckled on the outer side of the lifting ring 8, and a support wheel 11 is provided on the side of the buckle 9 close to the lifting ring 8. The support wheel 11 rolls on the outer side of the lifting ring 8. Therefore, the upper and lower sides and the outside of the lifting ring 8 are connected with support wheels 11, so that the buckle 9 can be raised and lowered 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 the vertically arranged push-pull rod 26 is fixedly connected to the lower surface of the buckle 9. The lower end of the push-pull rod 26 is fixedly connected to the upper surface of the piston 27. Therefore, when the lifting ring 8 moves up and down, the piston 27 will also move up and down.

[0056] In one case of this embodiment, a vertical plate 12 is vertically provided on the right side of the upper surface of the lifting boom 3. The upper end of the vertical plate 12 is rotatably connected to the middle part of a rotating shaft 18 arranged in a left-right direction. The left and right ends of the rotating shaft 18 are fixedly connected to the middle part of a deflection rod 14. A counterweight block is provided at one end of the deflection rod 14. The other end of the deflection rod 14 is rotatably connected to the upper end of a connecting rod 13. The lower end of the connecting rod 13 is rotatably connected to the upper end of a push rod 10. The middle part of the push rod 10 is slidably connected to the lifting boom 3. The lower end of the push rod 10 is fixedly connected to the left and right sides of a sliding support rod 19. A first drive motor 15 is provided in the middle of the right side of the vertical plate 12. The output shaft of the first drive motor 15 is fixedly connected to the first bevel gear 16. The first bevel gear 16 is meshed with the second bevel gear 17. The second bevel gear 17 is fixedly connected to the right side of the rotating shaft 18. Therefore, the first drive motor 15 can rotate the rotating shaft 18 through gear transmission. The rotating shaft 18 drives the deflection rod 14 to rotate. The deflection rod 14 pulls the top rod 10 up and down through the connecting rod 13, thereby causing the lifting ring 8 to move up and down, that is, realizing the up and down movement of the piston 27.

[0057] In one case of this embodiment, the lower end of the suspension column 4 is rotatably connected to the middle part of the rotating support rod 25, and the end of the rotating support rod 25 away from the suspension column 4 is fixedly connected to the outer wall of the extrusion tube 5, so that the extrusion tube 5 can rotate along the center of the suspension column 4. An angle locking component 24 is provided on the sliding support rod 19. The angle locking component 24 can limit the sliding of the buckle 9 on the lifting ring 8, thereby limiting the rotation of the extrusion 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, and a rotating rod 22 is provided on the left and right sides of the slider 23. The end of the rotating rod 22 is rotatably connected to the 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 in the direction away from the suspension column 4. When the buckle 9 is rotated to the front and rear sides of the lifting ring 8, the slider 23 is slid in the direction away from the suspension column 4. Since the L-shaped baffle 21 itself has a certain deformation, the L-shaped baffle 21 will be buckled on the left and right sides of the buckle 9. At this time, the buckle 9 cannot slide on the lifting ring 8, thereby realizing the angle locking processing of the extruded tube 5.

[0058] The cam 25 is provided with a plurality of extrusion tubes 5 on the outside thereof and the extrusion tubes 5 are evenly distributed relative to the axis of the suspension column 4. When the mixing device is provided with only one extrusion tube 5, the force on the cam 25 is unidirectional. At this time, the cam 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 suspension column 4, so that the four sides of the cam 25 are subjected to force, thereby improving stability. However, the more extrusion tubes 5 are designed, the more mixing space the reagents in the mixing tank 2 are occupied. Therefore, the more the better is not necessarily true. In the present application, two extrusion tubes 5 are used. Therefore, the middle part of the cross-bar-shaped cam 25 is rotatably connected to the lower end of the suspension column 4, and the left and right ends of the cam 25 are fixedly connected to the extrusion tubes 5. The extrusion tubes 5 on both sides can output stirring power, so that the force on the suspension column 4 is also stable. The liquid outlet pipes 7 corresponding to the plurality of extrusion tubes 5 are symmetrically distributed around the axis of the suspension column 4. For example, according to the attached Figure 2 The state is described in detail. In the present application, two extrusion tubes 5 are provided. The liquid outlet pipe 7 below the extrusion tube 5 on the left is arranged to the rear side, and the liquid outlet pipe 7 corresponding to the extrusion tube 5 on the right is arranged to the front side. Therefore, from the top view, the water flows sprayed from the liquid outlet pipes 7 on the left and right sides are clockwise, thereby avoiding the problem of mutual collision, and the liquid outlet pipe 7 is designed to be an arc-shaped structure, so that the water flow sprayed from the liquid outlet pipe 7 can flow more smoothly along the inner wall of the mixing tank 2.

[0059] In one case of this embodiment, the lower end of the fixed tube 6 is connected to the joint in the upper middle part of the first three-way joint 30, and two joints are provided at the front and rear ends of the first three-way joint 30 to respectively connect 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 water 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 means that when the extrusion tube 5 is discharging liquid, the water flow can only be discharged through the liquid outlet pipe 7, and when the water flow is pumping liquid, the water flow can enter through the liquid inlet pipe 28 and the liquid outlet pipe 7 at the same time. The specific working method will be described in detail in the subsequent process.

[0060] The top of the lifting screw rod 32 is threadedly connected to the lifting cantilever 3, and the top 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 column 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 the third bevel gear 35, and the third bevel gear 35 is meshed with the 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 through gear transmission. The lifting screw rod 32 pushes the lifting cantilever 3 to move up and down along the guide column 31, thereby adjusting the height of the extruded tube 5 on the right side.

[0061] During the implementation of this embodiment, the second drive motor 34 is first started. The second drive motor 34 moves the lifting cantilever 3 upward through the lifting screw 32, and the mixing tank 2 is placed above the right side of the base 1. The center of the mixing tank 2 is roughly aligned with the center of the suspension column 4. The decolorant concentrate and diluent to be mixed are poured into the interior of the mixing tank 2. At this time, the second drive motor 34 is started in reverse, the lifting cantilever 3 will move downward, the extrusion tube 5 is inserted into the interior of 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 processing can be carried out.

[0062] The water body rotates and mixes, and the position of the buckle 9 on the lifting ring 8 is manually rotated, and the buckle 9 is rotated to the front and rear sides of the lifting ring 8. At this time, the L-shaped baffle 21 can be rotated to a horizontal state, and the slider 23 is slid toward the direction of the buckle 9, so that the two L-shaped baffles 21 are just stuck 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, and the first drive motor 15 rotates the rotating shaft 18 through the gear transmission. The rotating shaft 18 drives the lifting ring 8 up and down through the crank structure composed of the deflection rod 14 and the connecting rod 13. The push rod 10 drives the lifting ring 8 to move up and down. The lifting ring 8 pulls the piston 27 up and down through the push-pull rod 26. When the piston 27 moves upward, the water flows into the interior of the extrusion tube 5 through the liquid outlet pipe 7 and the liquid inlet pipe 28. When the piston 27 moves downward, the water flows through the liquid outlet pipe 7. The water discharged on both sides generates a clockwise vortex inside the liquid outlet pipe 7 when viewed from above, thereby passing the water itself The rotation of the mixing tank 2 is used for mixing, and since the extrusion tube 5 continuously draws in and discharges the water at the bottom, the water at the bottom is continuously remixed in the mixing tank 2, so that water at different heights can be effectively mixed. After the water 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 liquid, the water at the end of the liquid inlet pipe 28 will directly flow into the interior of the liquid inlet pipe 28. At this time, the efficiency of the liquid pumping by the liquid inlet pipe 28 will increase compared to when the water body is stationary. At this time, the efficiency of the water flowing into the liquid inlet pipe 28 will be higher than the efficiency of the water flowing into the liquid outlet pipe 7, thereby reducing the speed loss caused by the rotation of the water body during pumping. Therefore, as the piston 27 continues to move up and down, the cooperation of the liquid outlet pipe 7 and the liquid outlet pipe 7 can continuously generate a clockwise vortex at the bottom of the water body, and a preliminary mixing process is achieved through the clockwise vortex of the water body itself and the suction and discharge of the extrusion tube 5 itself.

[0063] Stirring and mixing process, when the water body itself is mixed for a period of time, stop the first drive motor 15, disengage the L-shaped baffle 21 from the buckle 9, and the L-shaped baffle 21 rotates to a vertical state under the action of gravity. The buckle 9 can rotate along the lifting ring 8, and the L-shaped baffle 21 rotated to a vertical state will not affect the rotation of the buckle 9. At this time, the first drive motor 15 can be started again, and the buckle 9 sliding along the lifting ring 8 will also move up and down synchronously with the lifting ring 8. At this time, the piston 27 is still moving up and down inside the extrusion tube 5. When the liquid outlet pipe 7 of the extrusion tube 5 sprays water, the reaction force of the water flow will cause the extrusion tube 5 to reverse around the suspension column 4. As the liquid outlet pipe 7 intermittently sprays water, the extrusion tube 5 will continue to rotate counterclockwise around the suspension column 4 under the action of inertia. At this time, the original water 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 the liquid inlet efficiency of the liquid outlet pipe 7. At this time, on the one hand, the liquid outlet pipe 7 continuously sprays out clockwise rotating water, and on the other hand, the extrusion tube 5 itself is stirred counterclockwise in the mixing tank 2, so that the collision efficiency of the extrusion tube 5 and the water in the mixing tank 2 is higher, thereby improving the stirring effect of the extrusion tube 5 and making the water mixing effect inside the mixing tank 2 better.

[0064] Discharge processing: After the liquid inside the mixing tank 2 is stirred, the first drive motor 15 can be stopped after the piston 27 is at the bottom of the extrusion tube 5. At this time, the second drive motor 34 is started to move the lifting cantilever 3 upward, so that the liquid outlet pipe 7 and the liquid inlet pipe 28 are higher than the water level inside the mixing tank 2. Then, the first drive motor 15 is started again, and the piston 27 moves upward first. The liquid outlet pipe 7 and the liquid inlet pipe 28 draw in gas. After standing for a period of time, the gas will flow to the top of the extrusion tube 5. At this time, a small amount of liquid remains at the bottom of the extrusion tube 5. The piston 27 moves downward again, and the water at the bottom of the extrusion tube 5 will be discharged through the liquid outlet pipe 7. Since the liquid inlet pipe 28 is short in length, it retains less liquid, and after the liquid outlet pipe 7 completes drainage, the gas will also bring out the liquid retained in the liquid inlet pipe 28 during the outflow process. The small amount of liquid finally retained in the liquid inlet pipe 28 can be ignored, and the subsequent stirring process can continue. The liquid inlet pipe 28 needs to be cleaned only when the entire mixing equipment is not used for a long time. At this time, the lifting cantilever 3 is moved upward again by the second drive motor 34, and the liquid inlet pipe 28 and the liquid outlet pipe 7 are completely separated from the mixing tank 2. The mixing tank 2 is taken out, and the decolorant dilution liquid that has been mixed in the mixing tank 2 can be poured out.

[0065] The present invention is applicable to a decolorizing agent mixing device for dark animal hair fibers. By arranging a liquid outlet pipe 7 capable of generating a vortex water flow at the bottom of an extrusion tube 5, the water body inside a mixing tank 2 can itself be subjected to a rotational mixing process. At the same time, the extrusion tube 5 can also be subjected to a stirring process under the reaction force of the water flow ejected from the liquid outlet pipe 7, so that the mixing dynamics of the entire mixing tank 2 are more enhanced, and the mixing effect is improved. In addition, the suction and ejection of the extrusion tube 5 allow water bodies of different depths to be mixed, further improving the mixing effect.

[0066] Example 2

[0067] This embodiment discloses a low-carbon decolorization method, wherein the decolorizer used is mixed with the dark animal hair fiber decolorizer mixing device disclosed in Example 1 and then decolorized on dark animal hair fibers such as yak hair. The decolorization method specifically includes the following steps:

[0068] S10. The decolorant mixture is mixed and stirred evenly using the above-mentioned decolorant mixing device;

[0069] The decolorizing agent mixture includes the following components:

[0070] 2~5wt% sodium persulfate;

[0071] 0.2~0.8wt% sodium hexametaphosphate (or polyethylene polyamine polyalkylene phosphonate);

[0072] 0.4~0.8% sodium alkylbenzene sulfonate;

[0073] 1~10wt% dimethylformamide;

[0074] 20~40% H2O2;

[0075] The balance is water;

[0076] S20. Soak the dark animal hair fiber in the decolorant mixture for 1-3 hours; the temperature of the decolorant mixture is 20-40°C, and the soaking bath ratio is 1:50 to 1:70.

[0077] S30 soaking process, adding alkali to the decolorizing agent mixture, maintaining the pH value of the decolorizing agent mixture at 9-10;

[0078] Specifically, the pH value of the decolorizing 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.

[0079] S40. After drying, the bleached dark animal hair fibers are obtained. Common dark animal hair fibers include dark cashmere, dark wool, yak hair or hair, camel hair, etc.

[0080] The low-carbon decolorization method disclosed in the present application greatly reduces water consumption. Under the premise of ensuring a whiteness of 60, the water consumption is reduced by 30-70%.

[0081] Example 3

[0082] like Figure 12-14 As shown, this embodiment discloses a dark animal hair fiber decolorant mixing device. The difference from Example 1 is that after mixing the decolorant, the device adds animal hair fiber 46 into the decolorant for stirring and decolorization.

[0083] The equipment also includes supplementary detection components;

[0084] The supplementary detection component is used to extract liquid from the extrusion tube 5 for sampling and detection or to inject reagents into the extrusion tube 5.

[0085] As a further implementation of this embodiment, the supplementary detection assembly includes a branch pipe 43 and a control valve;

[0086] The control valve is used to control the branch pipe 43 and is in a normally closed state;

[0087] The branch pipe 43 is connected to the extrusion pipe 5 (as Figure 14 shown);

[0088] 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 and tested to obtain the pH value and concentration of each component of the liquid;

[0089] When the piston 27 rises, the control valve is opened and reagents such as alkali solution or hydrogen peroxide are introduced into the branch pipe to absorb the reagents into the extrusion tube 5. The control valve is closed, the piston 27 descends, and the reagents are discharged from the extrusion tube 5 into the mixing tank 2.

[0090] like Figure 13 As shown, as a further implementation of this embodiment, the supplementary detection assembly 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;

[0091] The two ends of the detection tube 37 are connected to the detection device 41 and the extrusion tube 5 respectively;

[0092] The two ends of the replenishing pipe 38 are connected to the replenishing device 42 and the extrusion pipe 5 respectively;

[0093] The first control valve 39 and the second control valve 40 are respectively disposed on the detection pipe 37 and the replenishment pipe 38 .

[0094] As a further implementation of this embodiment, the detection tube 37 and the supplementary tube 38 can be arranged on the same extrusion tube 5 , or can be respectively arranged on two different extrusion tubes 5 .

[0095] like Figure 12 As shown, as a further implementation of this embodiment, in order to reduce the complexity of the equipment, the supplementary detection assembly further includes a branch pipe 43 and a second three-way connector 44;

[0096] 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 replenishment pipe 38 through the second three-way joint 44;

[0097] One end of the detection tube 37 and the replenishing tube 38 away from the second three-way connector 44 is connected to the detection device 41 and the replenishing device 42 respectively;

[0098] The detection pipe 37 and the replenishment pipe 38 are respectively provided with a first control valve 39 and a second control valve 40 .

[0099] like Figure 14 As shown, as a further implementation of this embodiment, a blocking structure 45 is further provided on the liquid inlet pipe and the liquid outlet pipe to prevent animal hair fibers 46 from entering.

[0100] As a preferred implementation of this embodiment, the blocking structure 45 is a structure such as a perforated plate or a mesh sleeve.

[0101] The detection device 41 and the supplementary device 42 can be replaced by existing automatic detection and sample addition equipment, which is a prior art and is further limited in this application. In addition, the detection device 41 and the supplementary device 42 can also be replaced by manual operation of an operator.

[0102] This embodiment differs from Example 1 in that the dark animal hair fiber decolorant mixing device disclosed in this embodiment mixes the decolorant and then directly places the dark animal hair fiber 46 into a mixing tank for decolorization. The decolorization principle is that persulfate and hydrogen peroxide, among other substances, are combined to form a decolorant that acts on the animal fiber's melanosomes in a weakly alkaline environment. The melanosomes, primarily composed of 5,6-dihydroxyindole, are oxidized and degraded into smaller molecules. After the melanosomes are degraded, the dark animal fiber becomes lighter in color. During this process, the persulfate gradually weakens the alkalinity of the overall solution. Without intervention, the solution in the mixing tank may even become acidic. Therefore, it is necessary to add alkaline solution as needed to maintain the pH of the decolorant solution between 9 and 10.

[0103] In addition, hydrogen peroxide will be continuously consumed during the decolorization process, resulting in a gradual decrease in the hydrogen peroxide content and a gradual weakening of the decolorization effect. Therefore, real-time sampling and testing are required during the decolorization process, and hydrogen peroxide should be added based on the test results.

[0104] When adding alkali solution and hydrogen peroxide, it is necessary to avoid direct contact of high concentration alkali solution and hydrogen peroxide with the animal hair fibers 46, which may cause corrosion to the animal hair fibers 46. Therefore, it is necessary to preliminarily dilute the alkali solution and hydrogen peroxide before adding them, and then discharge them into the mixing tank and stir them quickly.

[0105] During use, this embodiment first stirs the decolorant as described in Example 1. Dark animal hair fibers 46 are then added to the mixing tank, and stirring is continued by pumping piston 27. Compared to propeller-type stirring commonly used in the prior art, the device of this application eliminates propeller entanglement during stirring. Sampling and reagent replenishment are performed regularly during stirring. During stirring, first control valve 39 and second control valve 40 remain normally closed.

[0106] The specific operation of sampling and testing is as follows: when the piston 27 falls, the first control valve 39 is opened, and part of the liquid in the extrusion tube 5 is squeezed into the branch pipe 43. The liquid enters the detection device 41 through the branch pipe 43 and the detection tube 37. The first control valve 39 is closed, and the pH value and hydrogen peroxide concentration of the liquid are measured by the detection device 41. The amount of alkali solution and hydrogen peroxide that need to be added to the mixing tank is determined based on the measurement structure, and the reagents are replenished.

[0107] The specific operation of actual replenishment is as follows: when the piston 27 rises, the second control valve 40 is opened, and the reagent of the replenishment device 42 is sucked into the extrusion tube 5 through the replenishment pipe 38 and the branch pipe 43, and is preliminarily diluted with the liquid in the extrusion tube 5. The second control valve 40 is closed, and the piston 27 falls, and the preliminarily diluted liquid in the extrusion tube 5 is discharged into the mixing tank.

[0108] The dark animal hair fiber decolorant mixing device disclosed in this embodiment not only mixes the decolorant but also directly decolorizes the dark animal hair fibers 46. The continuous stirring during the decolorization process prevents the fibers from becoming entangled with the device. During use, the decolorant is extracted and replenished by cooperating with the replenishment detection assembly and the piston 27 within the extrusion tube 5. Compared to the prior art method of directly replenishing alkali solution and hydrogen peroxide, this embodiment first adds the reagent into the extrusion tube 5 for initial dilution before discharging it into the mixing tank for dilution and contact with the dark animal hair fibers 46. This effectively prevents the dark animal hair fibers 46 from reaching areas with high alkali solution and hydrogen peroxide concentrations, potentially causing fiber damage.

[0109] 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 above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dark animal hair fiber decolorant mixing device, comprising a base, a mixing tank is provided on the base, characterized in that: A height-adjustable lifting cantilever is provided above the mixing tank, and an extrusion tube is provided 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 provided at one end of the extrusion tube close to the mixing tank, and a liquid outlet pipe is provided at 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, and a suspension column is provided on the side of the lifting cantilever close to the mixing tank. A piston is slidably connected to the inside of the extrusion tube, and a liquid extrusion assembly for driving the piston to rise and fall is provided 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, the outside of the sliding support rod is fixedly connected to the lifting ring, and the outside of the lifting ring is slidably connected There is 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, 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, and the sliding support rod is provided with an angle locking assembly that limits the rotation of the rotating support rod, and the angle locking assembly includes a slider slidably connected to the sliding support rod, a rotating rod is provided on the side of the slider, and the end of the rotating rod is rotatably connected to an L-shaped baffle with a buckle, and a plurality of extrusion tubes evenly distributed relative to the center of the suspension column are provided on the outside of the rotating support rod, and the liquid outlet pipes corresponding to the plurality of extrusion tubes are symmetrically distributed around the axis of the suspension column.

2. The dark animal hair fiber decolorizing agent mixing device according to claim 1, 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.

3. 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 set in opposite directions. A one-way valve is set inside the liquid inlet pipe to only allow water to flow into the liquid inlet pipe.

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

5. A low-carbon decolorization method based on the decolorant mixing device according to any one of claims 1 to 4, 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. The dark animal hair fiber is immersed in the decolorizing agent mixture for 1-3 hours; S30 soaking process, adding alkali to the decolorizing agent mixture, maintaining the pH value of the decolorizing agent mixture at 9-10; S40. Let dry.

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