Waste Acid Treatment Equipment  

Waste Acid Treatment EquipmentThe 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. Its basic principle 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 aqueo…