Equipment: triple-effect forced circulation evaporator;
Application: Lithium Battery Recycle.
Feedstock: Liquor containing cobaltous sulfate and nickel sulfate；
Construction material:product wetted parts adopt TA2, non wetted parts adopt SS316L or carbons steel per actual need;
Treatment capacity: 1,500kg/h.
The desulfurization solution treatment in acid battery recovery system. A triple-effect forced circulation evaporator is adopted to recover by product from the waste lead-acid battery wastewater, to achieve purpose of recycling.
Currently, there are numerous types of waste batteries, mainly lithium-ion batteries, nickel-metal hydride batteries and nickel-cadmium batteries. In the waste battery recycling wastewater treatment, as the wastewater containing sulfate materials (nickel/cobalt/ manganese sulfate) in a wide range of varieties, the water quality is complex and difficult to be treated. Evaporation and crystallization can be adopted for treatment of waste battery wastewater.
A triple-effect forced circulation evaporator is adopted to concentrate the desulfurization liquor which contains nickel sulfate to oversaturation. After concentration, the oversaturated liquor was delivered into a centrifuge to be solid-liquor separated, the filtered solids was discharged or recycled, and the mother liquor was returned to the evaporator system to be concentrated again.
1 set of triple-effect forced circulation evaporator is adopted, which is able to meet the following demands:
1). The nickel sulfate solution is concentrated until over-saturation;
2). All components in the plant are well designed to ensure safety in production.
3). The forced circulation evaporator system can effectively prevent the blocking risk of heat exchange tubes caused by nickel sulfate solution of high concentration, and can slow the formation of scaling on the heat exchange surface at the mean time, improve the heat transfer efficiency, increase the continuous operation time of equipment, and reduce the cleaning frequency;
4). The main configuration of the plant is as below:
a. One set of triple-effect forced circulation evaporator;
b. One set of centrifuge and mother returning system;
c. One set of heat recovery system recovering condensate water;
d. One set of PLC control system.
