Manganese sulfate MVR evaporative crystallizer

The working principle of MVR evaporator is secondary steam mechanical recompression, which uses a steam compressor to recompress the evaporated secondary steam to increase its temperature and reuse it. In theory, MVR evaporators do not require the consumption of steam, only electricity. The $n m manganese sulfate MVR evaporative crystallizer is a specialized equipment for the development of feed grade and battery grade manganese sulfate. It overcomes the problems of scarring and blockage of manganese sulfate during the evaporative crystallization process, and has received good feedback from customers. It can achieve long-term stable operation.

After the long-term stable and successful operation of triple effect evaporation crystallization in the production process of manganese sulfate, our company has applied the lower energy consumption MVR evaporation technology to the production of manganese sulfate based on the characteristics of manganese sulfate and customer needs. Good results have been achieved, and after one year of operation, product quality, energy consumption standards, and other indicators have reached the design parameters. Received recognition and praise from users.

The manganese sulfate MVR evaporative crystallizer consumes approximately 120 kWh of electricity per ton of product (calculated based on a feed concentration of 80 g/l) and very little steam. After evaporation and crystallization, the manganese sulfate crystal slurry is filtered out as a solid through a thickener and centrifuge, and then dried using a disc dryer. The entire device operates continuously, reducing energy consumption by more than 60% compared to traditional production methods such as tank type intermittent evaporation and airflow drying.

The reverse solubility of manganese sulfate is a major characteristic that affects the operational efficiency of manganese sulfate MVR evaporators. After being heated, a saturated solution of manganese sulfate will experience supersaturation and solid precipitation due to a decrease in solubility. Therefore, for the forced circulation evaporation and crystallization process of manganese sulfate with materials passing through the tube, rapid scaling and blockage in the heat exchange tube are common faults in conventional manganese sulfate MVR evaporators, and strengthening convection methods such as increasing the flow rate between tubes alone cannot effectively solve the problem.