Device and method for recovering acid dye residue and heat energy

Abstract

The invention discloses an acid dye dyeing residue and heat energy recycling device and method. The acid dye dyeing residue and heat energy recycling device and method comprises a dye vat. The dye vat is connected with a vessel, wherein the volume of the vessel is greater than or equal to the dye vat. A heat exchanging coil pipe is arranged in the vessel, one end of the heat exchanging coil pipe is connected with a water inlet port, and the other end of the heat exchanging coil pipe is connected with the dye vat. Longitudinal sliding rails are arranged in the vessel, and sliding blocks are arranged on the sliding rails. A linear motor is arranged in the vessel, an output shaft of the linear motor is fixedly connected with the heat exchanging coil pipe. According to the acid dye dyeing residue and heat energy recycling device and method, by collecting the dyeing residue, the heat energy of the dyeing residue can be utilized for hot water washing, soaping and fixation process after dyeing, and moreover, by adding water, leveling agent, acid and dye into the dyeing residue until the dyeing residue returns back to the pre-dyeing status, so that recycling using of the dyeing residue is realized. According to the acid dye dyeing residue and heat energy recycling device and method, dosage of the leveling agent, the acid and the dye are decreased, dyeing cost is reduced, and dyeing processing efficiency are is improved.

Description

technical field [0001] The invention relates to a technique for recycling and utilizing residual liquid and thermal energy of the residual liquid after dyeing nylon acid dyes, acrylic fibers or cationic modified polyester cationic dyes, and belongs to the field of clean production of energy saving and emission reduction in the printing and dyeing industry. Background technique [0002] The residue after dyeing nylon acid dyes, acrylic fibers or cationic modified polyester cationic dyes contains most of the leveling agent and acid, and a small amount of dyes. Usually, the residue after dyeing is discharged to the sewage treatment station as sewage. After dyeing The temperature of the raffinate is 90-95 degrees, and direct discharge wastes heat energy. The raffinate also contains leveling agents, acids and dyes. If it is directly discharged, it will not only pollute the environment, but also cause a lot of manpower and material resources if it is treated with sewage. Contents...

AI Technical Summary

Problems solved by technology

[0002] The residue after dyeing nylon acid dyes, acrylic fibers or cationic modified polyester cationic dyes contains most of the leveling agent and acid, and a small amount of dyes. Usually, the residue after dyeing is discharged to the sewage treatment station as sewage. After dyeing The temperature of the residual liquid is 90-95 degrees, and direct discharge wastes heat energy. The residual liquid also contains leveling agents, acids and dyes. If it is directly discharged, it will not only pollute the environment, but also cause a lot of manpower and material resources if it is treated with sewage.

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