Supercritical waterless dyeing flow-equalizing dye kettle

Abstract

The utility model discloses a supercritical waterless dyeing flow-equalizing dye kettle which comprises a kettle body, a fluid input pipe is arranged at the bottom of the kettle body, the fluid input pipe comprises an input main pipe vertically arranged in the middle of a bottom plate of the kettle body, the upper end of the input main pipe is of a closed structure, and the lower end of the input main pipe is of a closed structure. A plurality of groups of input branch pipes are uniformly arranged on the peripheral wall of the part, positioned in the kettle body, of the input main pipe at intervals, and the input branch pipes in each group are uniformly arranged in the circumferential direction of the periphery of the input main pipe; each input branch pipe comprises an inclined part and a vertical part; one end of the inclined part is communicated with the input main pipe; the vertical part is communicated with the other end of the inclined part; a plurality of placing discs are arranged in the kettle body at intervals, and a plurality of dye baskets are uniformly arranged on each placing disc along the circumferential direction. According to the utility model, the phenomena that the dye is not fully dissolved and the dye is dissolved into blocks are effectively avoided, and the uniformity of subsequent dyeing is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterless dyeing equipment, in particular to a supercritical waterless dyeing uniform flow dye kettle. Background Art

[0002] Supercritical carbon dioxide dyeing is one of the most popular waterless dyeing technologies. Its principle is that when the temperature and pressure reach the critical point of carbon dioxide, it becomes a uniform fluid medium that can dissolve disperse dyes and transfer the energy it obtains from the external environment to the dye and the dyed fiber, providing energy for dyeing, diffusion, and adhesion on the fiber. This process can achieve zero wastewater discharge, and after dyeing, the dye and carbon dioxide are recycled. The dyed fabric is dry, eliminating the need for drying.

[0003] In existing supercritical fluid dyeing kettles, the dye accumulates in powder form inside the kettle. This irregular accumulation leads to insufficient dye dissolution and agglomeration during system circulation. Furthermore, since the fluid input into the kettle is uniformly distributed, it cannot be evenly mixed with the dye, resulting in dyeing failure or unevenness. Therefore, a supercritical waterless dyeing uniform flow kettle was developed. Utility Model Content

[0004] The purpose of the utility model is to provide a supercritical anhydrous dyeing uniform flow dye kettle to solve the technical problems existing in the above background technology.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The utility model discloses a supercritical waterless dyeing uniform flow dye kettle, which includes a kettle body, a bottom of the kettle body is provided with a fluid input pipe, the fluid input pipe includes an input main pipe vertically arranged in the middle of the bottom plate of the kettle body, the upper end of the input main pipe is a closed structure, a plurality of groups of input branch pipes are evenly spaced on the outer peripheral wall of the input main pipe located inside the kettle body, the input branch pipes of each group are evenly arranged along the circumference of the outer circumference of the input main pipe, each of the input branch pipes includes an oblique portion connected to the input main pipe at one end and a vertical portion connected to the other end of the oblique portion; a plurality of placement trays are arranged at intervals inside the kettle body, a plurality of dye baskets are evenly arranged on each of the placement trays along the circumference, and the dye baskets on two adjacent placement trays are staggered, and a plurality of air holes are evenly opened at the position of each placement tray where the dye basket is not provided; a kettle cover adapted to it is provided on the upper part of the kettle body, and a fluid outlet is provided in the middle of the kettle cover.

[0007] Furthermore, each of the dye baskets includes a conical accommodating cavity, the upper end of which is gap-matched with the through hole opened on the placement plate, and a limiting ring with a diameter larger than the inner diameter of the through hole on the placement plate is fixedly provided on the upper outer edge of the accommodating cavity.

[0008] Furthermore, the accommodating cavity is made of a metal sintered filter.

[0009] Furthermore, a filter screen is fixedly provided on the kettle body at a position between the fluid input pipe and the lowermost placement plate.

[0010] Furthermore, an inflatable sealing ring is provided between the upper end of the inner peripheral wall of the kettle body and the kettle cover.

[0011] Compared with the prior art, the beneficial technical effects of the present invention are:

[0012] The utility model introduces CO2 fluid heated to a supercritical state into the interior of the kettle through a fluid input main pipe. Since a plurality of fluid input branch pipes are evenly arranged on the periphery of the fluid input main pipe, the CO2 fluid can be evenly arranged inside the kettle. During the upward movement of the CO2 fluid inside the kettle, the CO2 fluid passes through the micropores of the accommodating cavities of each dye basket and is fully in contact with and dissolved in the dye, thereby achieving a uniform flow effect, thereby effectively avoiding the phenomenon of insufficient dye dissolution and dye agglomeration, and effectively improving the uniformity of subsequent dyeing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the fluid input pipe of the present utility model;

[0016] Figure 3 This is a schematic diagram of the placement tray structure of the utility model;

[0017] Explanation of the accompanying symbols: 1. Kettle body; 2. Fluid input pipe; 2-1. Input main pipe; 2-2. Input branch pipe; 3. Placement tray; 4. Dye basket; 4-1. Accommodating chamber; 4-2. Limiting ring; 5. Air vent; 6. Filter screen; 7. Kettle cover; 8. Fluid outlet; 9. Inflatable sealing ring. DETAILED DESCRIPTION

[0018] like Figure 1-Figure 3As shown, a supercritical waterless dyeing uniform flow dye kettle comprises a kettle body 1, with a fluid inlet pipe 2 mounted at the bottom of the kettle body 1. The fluid inlet pipe 2 comprises a vertical inlet main pipe 2-1 mounted in the middle of the bottom plate of the kettle body 1. The upper end of the inlet main pipe 2-1 is closed. Multiple groups of inlet branch pipes 2-2 are evenly spaced along the outer peripheral wall of the inlet main pipe 2-1 located within the kettle body 1. Each group of inlet branch pipes 2-2 is evenly arranged along the circumference of the inlet main pipe 2-1. Each inlet branch pipe 2-2 comprises an oblique portion connected to the inlet main pipe 2-1 at one end and a vertical portion connected to the other end of the oblique portion.

[0019] A plurality of placement trays 3 are installed at intervals inside the kettle body 1, and a plurality of dye baskets 4 are evenly installed on each placement tray 3 along the circumference, and the dye baskets 4 on two adjacent placement trays 3 are staggered, and a plurality of air holes 5 are evenly opened at the position of each placement tray 3 where no dye basket 3 is provided. In this embodiment, each of the dye baskets 4 includes a conical cylindrical accommodating cavity 4-1, and the material of the accommodating cavity 4-1 is a metal sintered filter mesh. The upper end of the accommodating cavity 4-1 is in clearance with the through hole opened on the placement tray 3. A limiting ring 4-2 is fixedly provided on the upper outer edge of the accommodating cavity 4-1, and the diameter of the limiting ring 4-2 is larger than the inner diameter of the through hole on the placement tray 3.

[0020] In this embodiment, a filter screen 6 is fixedly installed on the kettle body 1 at a position between the fluid input pipe 2 and the lowermost placement tray 3 .

[0021] The upper portion of the kettle body 1 is provided with a kettle cover 7 adapted thereto, a fluid outlet 8 is installed in the middle of the kettle cover 7 , and an inflatable sealing ring 9 is installed between the upper end of the inner peripheral wall of the kettle body 1 and the kettle cover 6 .

[0022] The working principle of this utility model is as follows:

[0023] CO2 fluid heated to a supercritical state is introduced into the kettle through the fluid input main pipe. Since multiple groups of fluid input branches are evenly arranged on the periphery of the fluid input main pipe, the CO2 fluid can be evenly distributed inside the kettle. During the upward movement inside the kettle, the CO2 fluid passes through the micropores of the accommodating cavities of each dye basket, thereby fully contacting and dissolving the dye, thereby achieving a uniform flow effect. The fluid that has fully dissolved the dye flows out from the fluid outlet and enters the next process.

[0024] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A supercritical anhydrous dyeing uniform flow dye kettle, characterized in that: The kettle body comprises a fluid input pipe provided at the bottom of the kettle body, the fluid input pipe comprising an input main pipe vertically arranged in the middle of the bottom plate of the kettle body, the upper end of the input main pipe is a closed structure, and a plurality of groups of input branch pipes are evenly spaced on the outer peripheral wall of the input main pipe located inside the kettle body, the input branch pipes of each group are evenly arranged along the circumference of the outer periphery of the input main pipe, and each input branch pipe comprises an oblique portion connected to the input main pipe at one end and a vertical portion connected to the other end of the oblique portion; a plurality of placement trays are arranged at intervals inside the kettle body, a plurality of dye baskets are evenly arranged on each placement tray along the circumference, and the dye baskets on two adjacent placement trays are staggered, and a plurality of air holes are evenly opened at the position of each placement tray where the dye basket is not provided; a kettle cover adapted to it is provided on the upper part of the kettle body, and a fluid outlet is provided in the middle of the kettle cover.

2. The supercritical anhydrous dyeing uniform flow dye kettle according to claim 1, characterized in that: Each of the dye baskets includes a conical accommodating cavity, the upper end of which is gap-matched with the through hole opened on the placement plate, and a limiting ring with a diameter larger than the inner diameter of the through hole on the placement plate is fixedly provided on the upper outer edge of the accommodating cavity.

3. The supercritical anhydrous dyeing uniform flow dye kettle according to claim 2, characterized in that: The material of the accommodating cavity is a metal sintered filter mesh.

4. The supercritical anhydrous dyeing uniform flow dye kettle according to claim 1, characterized in that: The kettle body is fixedly provided with a filter screen at a position between the fluid input pipe and the lowermost placement plate.

5. The supercritical anhydrous dyeing uniform flow dye kettle according to claim 1, characterized in that: An inflatable sealing ring is provided between the upper end of the inner peripheral wall of the kettle body and the kettle cover.

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