Heat exchange method for printing and dyeing sewage
A technology for printing and dyeing sewage and heat exchangers, which is applied in the types of heat exchangers, indirect heat exchangers, lighting and heating equipment, etc. It can solve the problems of difficult dredging and easy blockage of pipes, so as to facilitate cleaning and maintenance, and increase the contact surface. , the effect of exchange balance
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[0007] According to the different nature of sewage produced in each process of printing and dyeing production, we separate pre-treatment alkali-containing colorless sewage and colored sewage from dyeing and printing washing into the water collection tank, and design and manufacture two box-type heat exchangers respectively: pre-treatment Alkali-containing colorless hot sewage enters the boiler desulfurization device after being exchanged and cooled, and the neutralized sewage enters the sewage treatment tank to make the flue gas discharge meet the standard. No need to add acid, neutralization and alkali during sewage treatment, killing three birds with one stone; dyeing, printing The hot colored sewage from washing is exchanged and then enters the sewage tank, where it is first decolorized and then biochemically treated to ensure that the sewage is discharged up to standard. The clean hot water exchanged is used as the supplementary water produced by each machine. The temperatu...
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