Energy-saving and environment-friendly device for recycling strong base through nanometer membrane technology

Abstract

The invention relates to an energy-saving and environment-friendly device for recycling strong base through the nanometer membrane technology. The device comprises a waste liquid settling tank, a preliminary filter tank, a centrifugal machine, a secondary filter pipe, a refined filtration storage tank, an alkali liquid recycling tank and a pump; the preliminary filter tank is provided with a filter cloth for preliminarily filtering waste liquid, a nanometer membrane is arranged in the refined filtration storage tank, the input end of the preliminary filter tank is in pipeline connection with the output end of the waste liquid settling tank, the output end of the preliminary filter tank is in pipeline connection with the inlet end of the centrifugal machine, the output end of the centrifugal machine is in pipeline connection with the input end of the secondary filter pipe, the output end of the secondary filter pipe is in pipeline connection with the input end of the refined filtrationstorage tank, the output end of the refined filtration storage tank is in pipeline connection with the input end of the alkali liquid recycling tank, waste liquid in the waste liquid settling tank issettled, then, a supernate is transferred into the preliminary filter tank and filtered through the filter cloth to obtain a preliminary filter solution, then, the preliminary filter solution is transferred into the centrifugal machine for solid and liquid separation, the liquid obtained after separation is transferred into the secondary filter pipe for separation and elution. The device has the advantages that resources are recycled, emission reduction and energy conservation are achieved, and the production cost is lowered.

Description

technical field [0001] The invention relates to a device for recovering strong alkali, in particular to an energy-saving and environment-friendly device for recovering strong alkali with nano-membrane technology. Background technique [0002] The mercerizing process will produce a large amount of strong alkali, and the strong alkali is valuable. If it is not recycled, it will not only waste, but also cause pollution. This device is mainly aimed at the recovery of strong alkali in the current printing and dyeing mercerizing process, to promote the reuse of resources in this industry, to reduce the discharge of pollutants and the difficulty of pollution control, to reduce steam consumption and equipment maintenance costs, and to greatly reduce production costs. Row, clean production technology and equipment. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an energy-saving and environment-friendly device for recove...

AI Technical Summary

Problems solved by technology

[0002] The mercerizing process will produce a large amount of strong alkali, and the strong alkali is valuable. If it is not recycled, it will not only waste but also cause pollution

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