Self-flowing dye kettle for dyeing powdered dyes with supercritical carbon dioxide fluid

Abstract

The present invention provides a self-flowing dye kettle for dyeing powder-dissolving dyes with supercritical carbon dioxide fluid, comprising: a dye kettle body; a fluid inlet is arranged at the bottom of the inner wall of the dye kettle body, and a conical fluid diffuser is arranged at the bottom of the inner wall of the dye kettle body, and a hot oil jacket is arranged inside the dye kettle body; a sintered mesh, the two sides of the sintered mesh are respectively fixed to the two sides of the inner wall of the dye kettle body; two cross-flow plates, the two cross-flow plates are respectively fixed to the two sides of the inner wall of the dye kettle body, and the two cross-flow plates are both located at the bottom of the sintered mesh; a fluid guide plate, the two sides of the fluid guide plate are respectively arranged on the two sides of the inner wall of the dye kettle body. The self-flowing dye kettle for dyeing powder-dissolving dyes provided by the present invention does not accumulate the dye inside the dye kettle, effectively avoiding the phenomenon of insufficient dye dissolution and dye dissolution into blocks, thereby improving successful dyeing and uniformity.

Description

Technical Field

[0001] The invention relates to the field of supercritical carbon dioxide fluid dyeing, in particular to a self-powered uniform flow dye kettle for dyeing powder-dissolving dyes with supercritical carbon dioxide fluid. Background Art

[0002] The characteristics of supercritical carbon dioxide fluid dyeing are that no water is required during the dyeing and finishing process, and no drying is required after dyeing, which shortens the process flow and saves energy. It has fast dyeing speed, good leveling and penetration performance, good dyeing reproducibility, and can dye new high-performance fibers. No chemical dispersants and auxiliaries are required during the dyeing process, and the remaining dyes / functional finishing agents can be recycled, which can completely solve the water pollution problem of traditional textile dyeing and finishing processes. Carbon dioxide gas is non-toxic, stable, easy to obtain and reusable; it is an industrial by-product of fermentation and synthetic ammonia, so there is no harmful gas emission during the dyeing process, and it can be recycled and will not bring about a "greenhouse effect".

[0003] In the current supercritical fluid dyeing, since the dye is accumulated in powder form inside the dye kettle, due to the irregular accumulation, the dye is not fully dissolved during the system circulation process and the dye is dissolved into lumps, resulting in dyeing failure or unevenness.

[0004] Therefore, it is necessary to provide a self-flowing dye kettle for dyeing powder-dissolving dyes in supercritical carbon dioxide fluid to solve the above technical problems. Summary of the invention

[0005] The invention provides a self-flowing dye kettle for dyeing powdered dyes in supercritical carbon dioxide fluid dyeing, which solves the problem that the dye is accumulated in powder form inside the dye kettle, but due to irregular accumulation, the dye is not fully dissolved during the system circulation process, and the dye is dissolved into agglomerates, thereby causing dyeing failure or unevenness.

[0006] In order to solve the above technical problems, the present invention provides a self-flowing dye kettle for dyeing powder-dissolving dyes in supercritical carbon dioxide fluid, comprising:

[0007] Dye kettle body;

[0008] The bottom of the inner wall of the dye kettle body is provided with a fluid inlet, and the bottom of the inner wall of the dye kettle body is provided with a conical fluid diffuser, and the interior of the dye kettle body is provided with a hot oil jacket;

[0009] A sintered mesh, two sides of which are respectively fixed to two sides of the inner wall of the dye kettle body;

[0010] Two cross-flow plates, the two cross-flow plates are respectively fixed on both sides of the inner wall of the dye kettle body, and the two cross-flow plates are both located at the bottom of the sintered mesh;

[0011] A fluid guide plate, the two sides of which are respectively arranged on the two sides of the inner wall of the dye kettle body, the fluid guide plate is located at the bottom of the two cross-flow plates, the top of the top of the fluid guide plate is provided with a bearing, and the bearing is provided with a self-powered guide vane;

[0012] A dye basket, which is arranged inside the dye kettle body and located between the two cross-flow plates and the fluid guide plate;

[0013] The dye will not accumulate inside the dye kettle, effectively avoiding the phenomenon of insufficient dye dissolution and dye agglomeration, thereby improving successful dyeing and uniformity;

[0014] The hot oil in the hot oil jacket is heated and thermostatically controlled at the required temperature, thereby ensuring that the temperature in the dye kettle is consistent with the temperature of the dyeing fluid. The heating source of the hot oil jacket is preferably heat transfer oil or steam. Different heating sources can also be used according to actual conditions to improve the uniformity of heating.

[0015] Preferably, the bearing is a graphene oil-free bearing.

[0016] Preferably, the fluid guide plate adopts an inclined guide perforation method.

[0017] Preferably, the dye basket is in the shape of a funnel.

[0018] Preferably, a self-sealing kettle cover is provided on the top of the dye kettle body, and a fluid outlet is provided on the top of one side of the dye kettle body.

[0019] Preferably, support plates are provided on both sides of the bottom of the sintered mesh, and the two support plates are respectively fixed on both sides of the inner wall of the dye kettle body.

[0020] Preferably, the inside of the two support plates are provided with an insertion hole, the top of the two support plates are provided with an anastomosis hole, and the two anastomosis holes are respectively arranged crosswise with the two insertion holes.

[0021] Preferably, locking assemblies are provided on both sides of the top of the sintered mesh, and the locking assembly includes an operating handle, a movable rod is fixedly connected to the bottom of the operating handle, an extrusion plate is slidably connected to the outer surface of the movable rod, and a limiting block is fixedly connected to the outer surface of the bottom end of the movable rod.

[0022] Preferably, a compression spring is provided between the top of the compression plate and the operating handle, and the compression spring is located on the outer surface of the movable rod.

[0023] Preferably, a rotating rod is provided inside the bearing, the self-guide vane is provided on the outer surface of the rotating rod, the top end of the rotating rod passes through the dye basket and extends to the inside of the dye basket, and a Y-shaped hole is provided inside the rotating rod.

[0024] Compared with the related art, the self-powered uniform flow dye kettle for dyeing powder-dissolving dyes in supercritical carbon dioxide fluid provided by the present invention has the following beneficial effects:

[0025] The present invention provides a self-flow uniform dye kettle for dyeing powdered dyes with supercritical carbon dioxide fluid. The fluid guide plate adopts an inclined flow guide perforation method to change the umbrella-shaped fluid into a flow with a uniform direction, thereby driving the self-flow guide blade to rotate. The rotation of the self-flow guide blade will quantitatively distribute the dye on the dye basket to the fluid guide plate. After the heated supercritical fluid melts most of it, the fluid direction will be changed through the cross-flow plate according to the fluid direction, and a part of the dye that is not completely dissolved will be blocked to continue to dissolve in the kettle. After the supercritical fluid entrains the dissolved dye through a high-density sintering net to reach the dyeing fluid saturation state, it will flow out from the fluid outlet to the dyeing kettle. The dye will not be accumulated in the dye kettle, effectively avoiding the phenomenon of insufficient dye dissolution and dye dissolution into blocks, thereby improving successful dyeing and uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of a first embodiment of a self-flowing dye kettle for dyeing a powder-dissolving dye in a supercritical carbon dioxide fluid provided by the present invention;

[0027] Figure 2 A schematic structural diagram of a second embodiment of a self-flowing dye kettle for dyeing a powdered dye in a supercritical carbon dioxide fluid provided by the present invention;

[0028] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0029] Figure 4 for Figure 2 A structural stereogram of the locking assembly shown;

[0030] Figure 5 for Figure 2 The structural stereogram of the support plate is shown.

[0031] Numbers in the figure: 1. dye kettle body, 2. self-sealing kettle cover, 3. fluid outlet, 4. sintered mesh, 5. cross-flow plate, 6. fluid guide plate, 7. bearing, 8. self-guide vane, 9. dye basket, 10. fluid inlet, 11. conical fluid diffuser, 12. hot oil jacket, 13. support plate, 131. insertion hole, 132. matching hole, 14. locking assembly, 141. operating handle, 142. movable rod, 143. extrusion plate, 144. limit block, 145. extrusion spring, 15. rotating rod, 16. Y-shaped hole. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0033] First embodiment

[0034] Please refer to Figure 1 ,in, Figure 1 The structural schematic diagram of the first embodiment of the self-flowing dye kettle for dyeing powdered dyes in supercritical carbon dioxide fluid provided by the present invention. The self-flowing dye kettle for dyeing powdered dyes in supercritical carbon dioxide fluid includes:

[0035] Dye kettle body 1;

[0036] The bottom of the inner wall of the dye kettle body 1 is provided with a fluid inlet 10, and the bottom of the inner wall of the dye kettle body 1 is provided with a conical fluid diffuser 11, and the interior of the dye kettle body 1 is provided with a hot oil jacket 12;

[0037] A sintered mesh 4, two sides of which are respectively fixed to two sides of the inner wall of the dye kettle body 1;

[0038] Two cross-flow plates 5, the two cross-flow plates 5 are respectively fixed on both sides of the inner wall of the dye kettle body 1, and the two cross-flow plates 5 are both located at the bottom of the sintered mesh 4;

[0039] A fluid guide plate 6, the two sides of which are respectively arranged on the two sides of the inner wall of the dye kettle body 1, the fluid guide plate 6 is located at the bottom of the two cross-flow plates 5, the top of the fluid guide plate 6 is provided with a bearing 7, and the bearing 7 is provided with a self-powered guide vane 8;

[0040] A dye basket 9, wherein the dye basket 9 is arranged inside the dye kettle body 1, and the dye basket 9 is located between the two cross-flow plates 5 and the fluid guide plate 6;

[0041] The dye will not accumulate inside the dye kettle, effectively avoiding the phenomenon of insufficient dye dissolution and dye agglomeration, thereby improving successful dyeing and uniformity;

[0042] The hot oil in the hot oil jacket 12 is heated and thermostatically controlled at the required temperature, thereby ensuring that the temperature in the dye kettle is consistent with the temperature of the dyeing fluid, and the heating source of the hot oil jacket 12 is preferably heat-conducting oil or steam, and different heating sources can also be used according to actual conditions to improve the uniformity of heating;

[0043] The sintered mesh 4 adopts a high-density sintered mesh to facilitate powder and gas separation.

[0044] The bearing 7 is a graphene oil-free bearing;

[0045] By adopting a graphene oil-free bearing for the bearing 7, the normal rotation of the self-powered guide vane 8 is ensured, and the lubricating oil in the bearing 7 is prevented from affecting the dye.

[0046] The fluid guide plate 6 adopts an inclined guide perforation method;

[0047] By adopting an inclined guide perforation method on the fluid guide plate 6, the umbrella-shaped fluid is converted into a fluid with a uniform direction to push the self-powered guide blade 8 installed on the graphene oil-free bearing 7. The self-powered guide blade 8 rotates according to the perforation direction of the fluid guide plate 7 to quantitatively distribute the dye on the dye basket 9 to the fluid guide plate 7.

[0048] The shape of the dye basket 9 is funnel-shaped;

[0049] The funnel-shaped dye basket 9 can effectively prevent the dye from being squeezed at the bottom and affecting the uniformity of heating, thereby improving the subsequent heating effect. A cover is provided on the top of the dye basket 9 .

[0050] A self-sealing kettle cover 2 is arranged on the top of the dye kettle body 1 , and a fluid outlet 3 is arranged on the top of one side of the dye kettle body 1 .

[0051] The working principle of the self-flowing dye kettle for dyeing powder-dissolving dyes in supercritical carbon dioxide fluid provided by the present invention is as follows:

[0052] Open the self-sealing kettle cover 2, take out the high-density sintered mesh 4 and the cross-flow plate 5 in sequence, put the fully ground supercritical fluid dyeing powdered dye into the dye basket 9 according to the specific gravity of the dye, close the lid of the dye basket 9, then put the cross-flow plate 5 and the high-density sintered mesh 4 in place in sequence, and close the self-sealing kettle cover 2;

[0053] Moreover, the hot oil in the hot oil jacket 12 is heated and thermostatically controlled according to the required temperature, effectively ensuring that the temperature in the dye kettle 1 is consistent with the temperature of the dyeing fluid;

[0054] When the supercritical carbon dioxide fluid that meets the dyeing conditions enters from the fluid inlet 10, it is distributed in an umbrella shape by the conical fluid diffuser 11 and then flows to the fluid guide plate 6. Since the fluid guide plate 6 adopts an inclined guide perforation method, the umbrella-shaped fluid is converted into a fluid with a uniform direction, which can then drive the self-guide blade 8 installed on the bearing 7 to rotate. The self-guide blade 8 rotates according to the perforation direction of the fluid guide plate 6, and the dye on the dye basket 9 is quantitatively distributed to the fluid guide plate 6. After most of the supercritical fluid is melted by the heated supercritical fluid, the fluid direction is changed according to the fluid direction through the cross-flow plate 5, and a part of the incompletely dissolved dye is blocked in the kettle to continue to dissolve. After the supercritical fluid entrains the dissolved dye through the high-density sintered mesh 4 to reach the dyeing fluid saturation state, it flows out from the fluid outlet 3 and is sent to the dyeing kettle.

[0055] Compared with the related art, the self-powered uniform flow dye kettle for dyeing powder-dissolving dyes in supercritical carbon dioxide fluid provided by the present invention has the following beneficial effects:

[0056] By using an inclined guide perforation method on the fluid guide plate 6, the umbrella-shaped fluid is converted into a flow in a uniform direction, which can drive the self-guide blade 8 to rotate. The rotation of the self-guide blade 8 will quantitatively distribute the dye on the dye basket 9 to the fluid guide plate 6. After the heated supercritical fluid melts most of it, it will change the direction of the fluid through the cross-flow plate 5 according to the direction of the fluid, blocking a part of the incompletely dissolved dye so that it continues to dissolve in the kettle. After the supercritical fluid entrains the dissolved dye through the high-density sintered mesh 4 to reach the saturated state of the dyeing fluid, it flows out from the fluid outlet 3 to the dyeing kettle. The dye will not accumulate inside the dye kettle, effectively avoiding the phenomenon of insufficient dye dissolution and dye agglomeration, thereby improving successful dyeing and uniformity.

[0057] Second embodiment

[0058] Please refer to Figure 2-5 Based on the self-flowing dye kettle for dyeing dissolved powder state dyes in supercritical carbon dioxide fluid provided in the first embodiment of the present application, the second embodiment of the present application proposes another self-flowing dye kettle for dyeing dissolved powder state dyes in supercritical carbon dioxide fluid. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0059] Specifically, the difference of the self-flow equalizing dye kettle for supercritical carbon dioxide fluid dyeing dissolved powder state dye provided in the second embodiment of the present application is that support plates 13 are provided on both sides of the bottom of the sintered net 4, and the two support plates 13 are respectively fixed on both sides of the inner wall of the dye kettle body 1.

[0060] Insertion holes 131 are formed inside the two support plates 13, and matching holes 132 are formed on the tops of the two support plates 13. The matching holes 132 are respectively arranged to cross the two insertion holes 131.

[0061] The setting of the matching hole 132 facilitates the clamping of the limit block 144 to ensure stability after installation, and the setting of the insertion hole 131 facilitates better insertion of the movable rod 142 and the limit block 144. The setting of the support plate 13 facilitates the support of the sintered mesh 4, further improving the stability of the sintered mesh 4.

[0062] Both sides of the top of the sintered mesh 4 are provided with locking components 14, and the locking components 14 include an operating handle 141, a movable rod 142 is fixedly connected to the bottom of the operating handle 141, an extrusion plate 143 is slidably connected to the outer surface of the movable rod 142, and a limit block 144 is fixedly connected to the outer surface of the bottom end of the movable rod 142;

[0063] By manually moving the movable rod 142 downward, the movable rod drives the limit block 144 to pass through the sintered mesh 4 and the support plate 13, and penetrate the support plate 13 through the insertion hole 131, and then manually rotate the operating handle 141 ninety degrees to make the limit block 144 coincide with the matching hole 132, and then cooperate with the upward movement of the limit block 144 to be inserted into the matching hole 132, forming a clamping, thereby improving the stability of the sintered mesh 4 after installation.

[0064] A pressing spring 145 is provided between the top of the pressing plate 143 and the operating handle 141 , and the pressing spring 145 is located on the outer surface of the movable rod 142 ;

[0065] The extrusion plate 143 can be squeezed by the elastic force of the extrusion spring 145 itself, so that the extrusion plate 143 moves downward, and then the sintering mesh 4 can be clamped in cooperation with the limit block 144. The operation is convenient, and during the operation, no other auxiliary tools are required, which further improves the convenience of installation.

[0066] A rotating rod 15 is disposed inside the bearing 7, the self-guide vane 8 is disposed on the outer surface of the rotating rod 15, the top end of the rotating rod 15 penetrates the dye basket 9 and extends to the inside of the dye basket 9, and a Y-shaped hole 16 is disposed inside the rotating rod 15;

[0067] The top of the Y-shaped hole 16 is connected to the interior of the dye basket 9, and the two openings at the bottom of the Y-shaped hole 16 extend to the outside of the rotating rod 15. Through the rotation of the rotating rod 15, the dye is discharged through the two lower openings due to the centrifugal center, and then the dye on the dye basket 9 is quantitatively distributed to the fluid guide plate 6. When the rotating rod 15 stops rotating, the discharge will stop, the operation is more convenient, and the dye distribution is more uniform.

[0068] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A self-flowing dye kettle for dyeing powdered dyes in supercritical carbon dioxide fluid, characterized in that: include: Dye kettle body; The bottom of the inner wall of the dye kettle body is provided with a fluid inlet, and the bottom of the inner wall of the dye kettle body is provided with a conical fluid diffuser, and the interior of the dye kettle body is provided with a hot oil jacket; A sintered mesh, two sides of which are respectively fixed to two sides of the inner wall of the dye kettle body; Two cross-flow plates, the two cross-flow plates are respectively fixed on both sides of the inner wall of the dye kettle body, and the two cross-flow plates are both located at the bottom of the sintered mesh; A fluid guide plate, the two sides of which are respectively arranged on the two sides of the inner wall of the dye kettle body, the fluid guide plate is located at the bottom of the two cross-flow plates, a bearing is arranged on the top of the fluid guide plate, a self-guide blade is arranged on the bearing, and the fluid guide plate adopts an inclined guide perforation method; A dye basket, which is arranged inside the dye kettle body and located between the two cross-flow plates and the fluid guide plate; The bearing adopts a graphene oil-free bearing, a rotating rod is arranged inside the bearing, the self-guide vane is arranged on the outer surface of the rotating rod, the top end of the rotating rod passes through the dye basket and extends to the inside of the dye basket, a Y-shaped hole is arranged inside the rotating rod, and the shape of the dye basket is funnel-shaped.

2. The self-flowing dye kettle for dyeing powdered dyes in supercritical carbon dioxide fluid according to claim 1, characterized in that: A self-sealing kettle cover is arranged on the top of the dye kettle body, and a fluid outlet is arranged on the top of one side of the dye kettle body.

3. The self-flowing dye kettle for dyeing powdered dyes in supercritical carbon dioxide fluid according to claim 1, characterized in that: Support plates are arranged on both sides of the bottom of the sintered mesh, and the two support plates are respectively fixed on both sides of the inner wall of the dye kettle body.

4. The self-flowing dye kettle for dyeing powdered dyes in supercritical carbon dioxide fluid according to claim 3, characterized in that: Insertion holes are provided inside the two support plates, matching holes are provided on the tops of the two support plates, and the two matching holes are respectively arranged crosswise with the two insertion holes.

5. The self-flowing dye kettle for dyeing powdered dyes in supercritical carbon dioxide fluid according to claim 1, characterized in that: Locking assemblies are provided on both sides of the top of the sintered mesh, and the locking assembly includes an operating handle, a movable rod is fixedly connected to the bottom of the operating handle, an extrusion plate is slidably connected to the outer surface of the movable rod, and a limiting block is fixedly connected to the outer surface of the bottom end of the movable rod.

6. The self-flowing dye kettle for dyeing powdered dyes in supercritical carbon dioxide fluid according to claim 5, characterized in that: A pressing spring is arranged between the top of the pressing plate and the operating handle, and the pressing spring is located on the outer surface of the movable rod.

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