Coating water purification system

Abstract

The invention relates to a coating production line and particularly relates to a coating water purification system which is realized by the following technical scheme that: the coating water purification system comprises a raw water tank, a raw water pump connected with the raw water tank, a mechanical filter connected with the raw water pump through a pipeline I, an active carbon filter connected with the mechanical filter, a high-pressure pump I connected with the active carbon filter through a pipeline II, and a reverse osmosis set I connected with the high-pressure pump I. Compared with the background technology, the coating water purification system is more energy-saving and environment-friendly and has lower cost.

Description

technical field [0001] The invention relates to a coating production line, in particular to a coating water purification system. Background technique [0002] The general coating process is: degreasing--water washing--surface adjustment--phosphating--tap water washing--circulating pure water washing--clean pure water washing--cathode electrophoresis--clean ultrafiltrate washing--circulating ultrafiltrate Washing—circulating ultrafiltrate washing—clean pure water washing—drying; therefore, “pure water” is needed before and after cathodic electrophoresis, and the prior art often uses ion exchange to obtain pure water, and its technological process is generally as follows: Raw water--prefiltration--cation exchange--anion exchange--mixed ion exchange--water storage tank--water point, although this method can also produce pure water of the quality required for cathodic electrophoresis, but this method has frequent regenerations ,, regeneration agent, such as Na0H, HCL, etc., con...

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Problems solved by technology

[0002] The general coating process is: degreasing--water washing--surface adjustment--phosphating--tap water washing--circulating pure water washing--clean pure water washing--cathode electrophoresis--clean ultrafiltrate washing--circulating ultrafiltrate Washing—circulating ultrafiltrate washing—clean pure water washing—drying; therefore, “pure water” is needed before and after cathodic electrophoresis, and the prior art often uses ion exchange to obtain pure water, and its technological process is generally as follows: Raw water--prefiltration--cation exchange--anion exchange--mixed ion exchange--water storage tank--water point, although this method can also produce pure water of the quality required for cathodic electrophoresis, but this method has frequent regenerations ,, regeneration agent, such as Na0H, HCL, etc., consumes a lot, and the regeneration agent is a strong acid and strong alkali chemical, which may easily cause safety accidents during use. On the other hand, a large amount of flushing water is required for regeneration, which is wasteful water resources and environmental pollution

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