Supercritical fluid dyeing machine

Abstract

The invention discloses a supercritical fluid dyeing machine. A horizontal type cylindrical dyeing kettle, a magnetomotive cloth lifting wheel, a spray cavity, a wave-shaped cloth guide passage in the dyeing kettle, a heat exchanger, a dye kettle or/and an entrainer kettle and a circulating pump are used as main components to form a dyeing circulation system; and both ends of a fan are respectively connected with fluid outlets under the spray cavity and the dyeing kettle and form a cloth feeding system together with the magnetomotive cloth lifting wheel, the spray cavity and an operating opening. A rope-shaped fabric realizes circulated dyeing under the common action of the fluid in the magnetomotive cloth lifting wheel and the spray cavity, and the fluid in the dyeing kettle carries out forced circulation by the circulating pump. The dye and the fluid can realize recycling by a separating and recycling system after dyeing, and the whole dyeing circulation system and the separating and recycling system are clean to achieve the requirement during color changing and dyeing. The supercritical fluid dyeing machine can realize anhydrous dyeing processing on the fabric in a loosening type tension-free state without the production and discharge of pollutants, and has the characteristics of ecology, environmental pollution, wide adaptability of fabric variety, and the like.

Description

technical field [0001] The invention relates to a supercritical fluid fabric dyeing machine, which belongs to the technical field of manufacturing pressure vessels and textile dyeing and finishing equipment. Background technique [0002] The traditional dyeing process of textiles is a wet chemical process, which consumes a lot of water resources and chemicals, and produces a large amount of high concentration and high COD Cr The colored wastewater has caused serious pollution to the surrounding waters and ecological environment. Supercritical fluids, especially supercritical CO 2 Fluid is a safe, environmentally friendly and green fluid medium. with supercritical CO 2 The fluid replaces the traditional water bath for dyeing and processing of fabrics. Since there is no dyeing wastewater and other wastes, it can completely realize green, environmental protection, and clean production. At the same time, it has the advantages of saving water and energy. Therefore, supercritic...

AI Technical Summary

Problems solved by technology

However, because the fabric on the warp beam is in a static state, only the forced circulation of the fluid drives the dye to pass through the fabric, so it is easily affected by factors such as the mass transfer path of the fluid, resulting in a decrease in level dyeing; For axial dyeing, it is necessary to allow the fluid to penetrate evenly through the wound multi-layer fabric (generally hundreds of layers), especially for high-density and thick fabrics, which increases the design requirements and difficulty of the system and circulation pump, and achieves uniform dyeing As a result, it needs heat preservation and pressure dyeing for a long time, which reduces the production efficiency and increases the cost

For the double-shaft jigger mode, since a strong power system is needed to drive the movement of the cloth winding shaft, such as directly using the transmission shaft to realize it, however, for the supercritical high-pressure fluid system, using the transmission shaft to provide power is also for the system. The sealing and the durability of the sealing device have brought difficulties; in addition, this dyeing mode is difficult to ensure the uniformity of the fluid circulation in the dyeing kettle, and because the fabric has a large tension during the cycle, the fabric varieties suitable for processing also restricted

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