Printing and dyeing sludge treatment method

Abstract

The invention discloses a printing and dyeing sludge treatment method. The printing and dyeing sludge treatment method comprises the following steps: A, collecting and adding wet sludge generated by printing and dyeing into a high storage pool, and precipitating for solid-liquid separation; B, sending a separated solid phase into a low stirring and drying stove by virtue of gravity, and inflating high-temperature flue gas into the stirring and drying stove to dry the wet sludge into dry sludge; C, arranging a dry sludge discharging pipeline with a conveying fan at a discharging port of the stirring and drying stove, and conveying the dry sludge into a boiler for combustion through wind power by the discharging pipeline; and D, inflating one part of high-temperature flue gas generated during the combustion in the boiler into the stirring and drying stove as a heat source to dry the wet sludge, exhausting the other part of the high-temperature flue gas after flue gas treatment, and leading out ash residues after the combustion in the boiler. By the printing and dyeing sludge treatment method, the sludge generated by printing and dyeing is effectively treated through sufficient utilization of heat energy, the pollution is reduced, and the environment is protected.

Description

technical field [0001] The invention relates to a waste treatment technology, in particular to a printing and dyeing sludge treatment method. Background technique [0002] With the improvement of people's living standards and the diversification of lifestyles, the rapid development of the clothing industry has also increased the sludge generated in the process of fabric processing, printing and dyeing, which has caused great pressure on environmental protection. Printing and dyeing sludge is different from other ordinary sludge, which is characterized by a large amount of macromolecular organic fibers, residual dyes and inorganic minerals, and high moisture content and high viscosity. At present, most of the existing technologies adopt the disposal method of simple landfill, but the fiber is difficult to degrade, the inorganic minerals are difficult to compress, the landfill pile is unstable, and the heavy metals contained in the remaining dyes are easy to dissolve and pollu...

AI Technical Summary

Problems solved by technology

At present, most of the existing technologies adopt the disposal method of simple landfill, but the fiber is difficult to degrade, the inorganic minerals are difficult to compress, the landfill pile is unstable, and the heavy metals contained in the remaining dyes are easy to dissolve and pollute the water body, thus causing environmental damage. great harm

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