Working Principle:

  Kaida Evaporation and Crystallization Co., Ltd.Based on years of operational experience with equipment, we have developed multiple patented technologies. Among them, the multi-process combination evaporator has successfully and stably operated in various fields. This combination evaporation method effectively integrates the strengths of film蒸发, falling film蒸发, forced circulation evaporator, and multi-effect evaporator. By adopting this evaporation process, we have overcome the limitations of single evaporation methods, reduced energy consumption, and expanded the application scope of evaporators.

  Utilizing a multi-process combination evaporator, the feed liquid is concentrated to a certain concentration within a rising (falling) film evaporator and then enters a forced circulation evaporator for further concentration. Finally, it is crystallized in a crystallization separator, with the qualified product being separated from the crystallizer.

  Theoreticaly, multi-process combination evaporators are not limited to film-type, falling film, or forced circulation evaporators. Instead, they select the most suitable process equipment from various types of evaporation concentration equipment based on the properties of the material and the evaporation conditions to form a combination evaporator for optimal processing results. Welcome all customers to visit our factory for on-site inspection and inquiries.

Key Features:

      1Suitable for various crystallization methods.

      2Retained the advantages of ascending or descending membrane evaporators.

      3Shell and scale formation in the tube bundles has been reduced to a low degree.

      4The use of forced circulation evaporators prevents material blockage.

      5The combination evaporator can be designed in MVR configuration, offering energy-saving and environmental protection benefits.

Primary Types:Membrane-type Forced Circulation Evaporator, Rising Film-type Forced Circulation Evaporator

Application Scope:

        aBroad application range, excellent processing effect.

        bConcentrated crystallization suitable for various materials.

        cSuitable for both MVR evaporation and traditional steam evaporation.

“"The 'Three Reductions and One Stabilization' is the main technical feature of Kaida's evaporation crystallization."

1. Reduce Foam Carryover: By installing a demister pad on the separator's top, effectively addresses the issue of foam-carryover in the liquid. Additionally, the adsorption effect of the packing material significantly reduces the amount of low-boiling-point organic compounds (COD) and ammonia nitrogen in the condensate, thereby extending the equipment's lifespan and ensuring its smooth operation.

2. Reduce Scale Risk: The principle is demonstrated after the gas-liquid-solid three-phase flow into the separator crystallizer. In the separator, the secondary steam is discharged through the secondary steam pipe, and the supersaturated solution undergoes thermal crystallization. Under the action of gravity, the solid-liquid phase is quickly separated, and the turbid liquid and crystals do not enter the heater for heat exchange, effectively preventing scaling in the heater and friction or clogging between the crystals and the heating tube wall.

3. Energy Reduction: By setting different upward flow rates based on the concentration of materials in each separator, we prevent scaling issues in the heat exchanger tubes of the heater while also reducing the power of the circulating pump, thereby saving energy.

4. Equipment Stable and Continuous Operation: Controlled by steam regulating devices, the steam flow and pressure are managed, and high/low liquid level self-control devices are also installed to prevent human operation errors, which could lead to excessive equipment pressure or dry burning. This ensures the equipment's stability, safety, and ease of operation. For detailed technical information, please call the company's technical hotline below.