Waste Acid Recovery Device
Waste acid (mainly hydrofluoric acid) recovery device makes use of the different volatility between spent acid components, perform double-column vacuum continuous distillation to achieve high recovery rate.
The waste acid recovery device can not only process a large amount of waste acid produced by the customer's upstream, but also separate and recycle it, reducing the customer's production cost. It can also properly treat the remaining wastewater and solid residues, and the water recovery exceeds 70%, finally discharge the treated water after reaching the corresponding national standards, which can reduce the cost of sewage by more than 70%.
1.The waste acid recovery system adopts double-column continuous distillation technology at atmospheric pressure and decompression condition, and the recovery rate of hydrofluoric acid, hydrochloric acid and nitric acid can be fully improved through the separation and purification of two rectification columns. Moreover, under atmospheric pressure conditions, there will be no excessive pressure, high safety and stability, and the requirements for equipment are relaxed, and more high cost-effective equipment can be selected, reducing costs.
2. The waste acid recovery system adopts advanced DCS computer control technology, which realizes the integrated control of central control, machine side and local control, and can effectively monitor the production process of the whole set of recycling equipment. The complete set of control system has the characteristics of advanced and reliable design, high performance-price ratio, etc.
3. The waste acid recovery system uses adsorption resin to treat wastewater, which has high adsorption efficiency, easy desorption and regeneration, easy operation and long service lifespan.
This waste acid recovery device adopts distillation separation, which is a very mature technology. Relying on the support of huge knowledge theory and rich experience guidance, Shanghai Lianfeng can reasonably according to customer needs choose the most reasonable technical route and make adjustments. Compared with other separation methods with various limitations, the application of distillation separation is more common and reliable, and its range is very wide, the operation is simple, and it is easy to engineering management. In addition, this set of process technology can recover hydrofluoric acid, hydrochloric acid and nitric acid by more than 70%, water recovery by more than 70%, sewage costs can be lowered by more than 70%, and 10GW photovoltaic cell factories can save 20 million yuan per year. Therefore, waste acid recycling can not only save costs for customers, but also deal with the discharge of waste water and residue.
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