Processing capacity of low-temperature evaporator

The processing capacity of a low-temperature evaporator generally refers to the volume of raw liquid that can be processed per hour/day. The commonly used units in the industry are L/h and T/D (tons/day), and the equipment is mainly customized according to non-standard requirements.

1、 Conventional specification range

Small models: 5-50 L/h (0.12-1.2 T/D), mostly used in laboratories, small production lines, and factories with low hazardous waste volume

Medium sized models: 50-500 L/h (1.2-12 T/D), most commonly used for surface treatment, machining, and small and medium-sized chemical workshops

Large scale models: above 500 L/h (>12 T/D), large water volume scenarios such as garbage leachate, large electroplating parks, and new energy factories

Key point: The nominal treatment capacity is for clean water conditions, and the actual wastewater treatment capacity will be affected by several factors:

The higher the salt content/COD of the original solution, the higher the viscosity and the lower the evaporation rate;

Scaling and excessive suspended solids can reduce heat transfer efficiency and require regular cleaning;

Setting the evaporation temperature and vacuum degree can also affect the unit evaporation capacity;

Concentration factor: Conventional wastewater is generally concentrated by 5-20 times, and the higher the salt content, the lower the concentration factor.

2、 Core Indicator Description

Evaporation rate ≠ water inflow rate=evaporated condensate volume+concentrated residual liquid volume; The residual liquid is a high salt concentration solution that needs to be outsourced for disposal.

Under the same vacuum conditions where energy consumption is tied to processing capacity, the greater the evaporation rate, the corresponding increase in power of the supporting heating, vacuum pump, and condensation system.

The key points of selection should not only be based on the rated evaporation capacity, but also on the calculation of daily wastewater volume, salt content, scaling tendency, and reserved margin to avoid insufficient production capacity in the later stage.