Neutralized system is retrieved to loading sulphuric acid

The utility model relates to a chlor -alkali industrial design field discloses a neutralized system is retrieved to loading sulphuric acid, included concentrated sulfuric acid storage tank, concentrated sulfuric acid charge pump, acidizing fluid accumulator, waste liquid pump, waste liquid elevated tank and spent acid groove, through circuit design optimization, remaining sulphuric acid is retrieved in the pipeline of will unloading, makes sulphuric acid not emit into the sewage line to reach the zero release requirement, the sulphuric acid of collection carries out outer selling, for company's creation benefit as far as possible, the neutralized system is retrieved to sulphuric acid through the rational design, through add alkali neutralization treatment to the spent acid, emits into the sewage line again, not only can alleviate sewer line's acid corrosion, can alleviate sewage treatment's processing pressure moreover, prolongs sewer line's service life, and the production safety accident that causes other p