伊朗采购需求：刮膜蒸发器、薄膜蒸发器、搅拌薄膜蒸发器、牛奶蒸发器、MVR蒸发器、降膜蒸发器

We are assessing options for a vacuum evaporation system to concentrate a sodium sulfide solution. We need a Forced Circulation Evaporator with a Wide-Channel Plate Heat Exchanger to manage a 30-35% Na2S solution operating at a pH of about 12, an inlet temp of 25°C, and a flow rate of 10 ton/h. Key requirements include a system with a wide-channel heat exchanger, circulation pump, and piping, ensuring all wetted parts are highly resistant to Na2S. We're interested in glass-lined options for cost-effectiveness but welcome suggestions for alternative materials. Energy efficiency is critical, so please include options for recovering and reusing vapor as a heating medium. Looking forward to your detailed proposal and layout sketches!