Ammonium chloride waste liquid MVR evaporation crystallization system needs to be specifically analyzed based on the source of ammonium chloride and the amount of impurities it contains, and the appropriate crystallization method should be selected.
It is necessary to comprehensively consider many factors such as the stability of system performance, economical energy consumption, scaling treatment, convenience of maintenance, and convenience of daily operation.
Details of MVR evaporation and crystallization system for ammonium chloride waste liquid
Evaporator type: Ammonium chloride waste liquid MVR evaporation crystallization system.
Wastewater treatment method: Evaporation concentration and evaporation crystallization process are adopted, with high steam
consumption, and ammonium chloride solution is very corrosive to the material.
ENCO treatment process: The evaporation and crystallization of ammonium chloride need to be specifically analyzed according to the source of ammonium chloride and the impurities contained, and the appropriate crystallization method should be selected. When designing the evaporator, ENCO, the evaporator manufacturer, comprehensively considers many factors such as the stable performance of the system, the economy of energy consumption, the treatment of scaling, the convenience of maintenance, and the convenience of daily operation.
Therefore, it is recommended to use a low-energy consumption MVR evaporation and crystallization system, that is, MVR forced circulation evaporator + cooling crystallizer, to treat this type of wastewater to ensure that this system meets the requirements of zero wastewater discharge.
ENCO ammonium chloride waste liquid MVR evaporation and crystallization system composition
Preheater: In most cases, the solution to be evaporated needs to be preheated before entering the evaporator.
Evaporator: The solution to be evaporated is heated in the evaporator with the heat source steam to produce evaporation. Different types of evaporators are selected according to the properties of different solutions.
Separator: used to separate steam and liquid. Different separators can be selected according to the properties of different solutions. Generally, there are centrifugal separators, gravity separators or separators with special structures.
Vacuum system: maintain the vacuum degree of the entire system, extract part of the air, non-condensable gas and gas brought into the solution from the device to achieve a stable evaporation state of the system. Pump: transport the solution to be evaporated and the concentrated solution. Different types of pumps are selected according to the different properties of the solution. Generally, centrifugal pumps, volumetric pumps and screw pumps can be used.
Compressor: provides evaporation heat source by compressing secondary steam to increase the thermal enthalpy of secondary steam. A variety of compressors can be selected according to the requirements of different flow rates and compression ratios. For the case of increased pressure rise, multi-stage compressors can be used in series.
Control system: MVR evaporation system control center, through the adjustment of motor speed, valve, flow meter, temperature, pressure control, to achieve automatic evaporation, cleaning, shutdown and other operations. Automatic alarm, automatic protection system from damage, maintain system dynamic balance.
Cleaning system: Different solutions may cause scaling after evaporation for a period of time. Generally speaking, more than 99% of scaling is removed by adding chemical solvents. Generally, CIP in-situ cleaning or dismantling cleaning can be used.
Main features of ENCO ammonium chloride waste liquid MVR evaporation crystallization system
1. Reasonable and beautiful design, stable operation, no steam consumption; large concentration ratio, short concentration time;
2. No cooling water is required, no heat loss in the system;
3. Low-temperature evaporation is adopted, heat can be utilized, the material liquid is heated gently, and it is suitable for the concentration of heat-sensitive materials;
4. The whole set of equipment has a compact structure, small footprint, simple and smooth layout, representing the development direction of large-scale complete evaporation equipment;
5. Continuous feeding and discharging, the entire MVR evaporation system realizes PLC automatic control, reducing the number of operators.
Please contact us if you need any support:
Name: Kelvin
Mobile/Whatapp No.: M/W:+86 18593449637
Email: kelvin@cnenco.com