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Waste Acid Treatment Equipment:
The efficient, energy-saving negative pressure graphite evaporation crystallization device provided by this product for hydrochloric acid pickling waste liquid is essentially a physical process for separating solutes and solvents in a solution. As an environmental protection equipment, its basic principle of waste acid treatment equipment is to heat an aqueous solution containing metal salts and hydrogen chloride solutes in a vacuum state, causing the volatile solute hydrogen chloride in the solution to evaporate together with water. Through the condenser, it condenses with cooling water to form a dilute hydrochloric acid that can be returned to the workshop for reuse; As the volume of the solution decreases, the concentration of non-volatile solute metal salts in the solution increases, forming a supersaturated solution of metal salts. Then, by cooling, the solubility of the solution is reduced. In the supersaturated state of the solution, a portion of the metal salt crystallizes and precipitates in the crystalline state of aqueous crystals, achieving the separation of solutes and solvents in the solution. Serveing as an environmental protection equipment,this process can recover over 90% of hydrogen chloride from acid pickling wastewater, and the concentration of recovered hydrochloric acid increases by 2-4% compared to untreated hydrochloric acid pickling waste water; To precipitate all metal ions in the form of metal salt crystals.
Typical Application: Hot dip galvanizing; plants;chemical
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Main Product:
hot dip galvanizing line,
galvanizing equipment,
environmental protection equipment,
galvanizing process,
zinc kettles ,
pretreatment tank
