The evaporation and crystallization of ammonium chloride require specific analysis based on its source and impurities to select an appropriate crystallization method. When designing evaporators, evaporator manufacturer Kang Jinghui comprehensively considers factors such as system performance stability, energy economy, scale treatment, ease of maintenance, and convenient daily operation. Therefore, they recommend using a low-energy MVR evaporation crystallization system, namely an MVR forced circulation evaporator + cooling crystallizer, to treat this type of wastewater, ensuring that the system meets the requirements for zero wastewater discharge.

Details of the MVR evaporation and crystallization system for ammonium chloride waste liquid Evaporator type: Ammonium chloride waste liquid MVR evaporation crystallization system wastewater treatment method: adopts evaporation concentration and evaporation crystallization process, which has high steam consumption and the ammonium chloride solution is very corrosive to the materials.

Kang Jinghui's treatment process: The evaporation and crystallization of ammonium chloride require specific analysis based on the source of the ammonium chloride and the presence of impurities to select an appropriate crystallization method. When designing evaporators, Kang Jinghui, an evaporator manufacturer, comprehensively considers factors such as system performance stability, energy economy, scale treatment, ease of maintenance, and convenience of daily operation. Therefore, they recommend using a low-energy MVR evaporation crystallization system, namely an MVR forced circulation evaporator + cooling crystallizer, to treat this type of wastewater, ensuring that the system meets the requirements for zero wastewater discharge.

Composition of Kangjinghui Ammonium Chloride Waste Liquid MVR Evaporation and Crystallization System:

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 by a heat source, steam, in the evaporator to produce evaporation. Different types of evaporators are selected according to the properties of different solutions.

Separator: Used for separating 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: Maintains the vacuum level of the entire system by evacuating some air, non-condensable gases, and gases introduced by the solution to achieve a stable evaporation state. Pump: Transports the solution to be evaporated and the concentrated solution. Different types of pumps are selected according to the properties of the solution; centrifugal pumps, positive displacement pumps, and screw pumps are generally used.

Compressor: Provides a heat source for evaporation by compressing secondary steam, thereby increasing the enthalpy of the secondary steam. Various compressors can be selected based on different flow rate and compression ratio requirements. For situations requiring increased pressure rise, multi-stage compressors can be used in series.

Control System: The MVR evaporation system control center regulates motor speed and controls valves, flow meters, temperature, and pressure to achieve automatic evaporation, cleaning, and shutdown operations. It features automatic alarms, automatic system protection against damage, and maintains 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. CIP in-situ cleaning or disassembly cleaning can usually be used.

Key features of Kangjinghui Ammonium Chloride Waste Liquid MVR Evaporation and Crystallization System:

1. The entire ammonium chloride waste liquid MVR evaporation crystallization system is reasonably and aesthetically pleasing, operates stably, and consumes no steam; it has a large concentration ratio and a short concentration time.

2. No cooling water is required, and there is no heat loss within the system;

3. The ammonium chloride waste liquid MVR evaporation crystallization system adopts low-temperature evaporation, which can utilize heat energy and heat the liquid gently, making it suitable for the concentration of heat-sensitive materials.

4. The ammonium chloride waste liquid MVR evaporation crystallization system has a compact structure, small footprint, and simple and streamlined layout, which signifies the development direction of large-scale complete evaporation equipment.

5. Continuous feeding and discharging; the entire MVR evaporation system is PLC-controlled, reducing the number of operators.