Evaporation equipment and process special for concentrating salt-containing water

By using a method in which non-woven fabric is in countercurrent contact with the airflow in the equipment for concentrating salt water, combined with a lifting pump circulation evaporation and optimized parameters, the problems of high energy consumption and low evaporation efficiency in the existing technology are solved, and low-energy and high-efficiency salt water concentration and salt recovery are achieved.

CN120698546AActive Publication Date: 2025-09-26NANJING ACAD OF ENVIRONMENTAL PROTECTION SCI
8 Cites 0 Cited by

Patent Information

Application Number
CN202510879286.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-27
Publication Date
2025-09-26
Estimated Expiration
2045-06-27

AI Technical Summary

Technical Problem

The existing method for concentrating salt water has high energy consumption, and the reverse osmosis membrane is easily clogged when concentrating high-concentration salt water, has low evaporation efficiency, and is not suitable for completely recovering the salt in the salt water.

Method used

Non-woven fabric is used as the water distribution carrier, and a fan is used to form an upward airflow from bottom to top in countercurrent contact with the salt water. A lifting pump is combined to achieve circulating evaporation. Water is evenly distributed through pulsed water discharge. The salt concentration is monitored and the operation is stopped before saturation is reached. The equipment parameters are optimized to maintain low energy consumption and high efficiency evaporation.

Benefits of technology

The evaporation efficiency of brine is significantly improved at low energy consumption, equipment blockage is avoided, and efficient concentration of brine and complete recovery of salt are achieved.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to evaporation equipment and a process special for concentrating salt-containing water. The evaporation equipment comprises a shell, an air outlet and a fan are arranged at the top or the upper part of the shell, and an air inlet is formed in the side wall of the lower part of the shell; a water distribution pipe, a group of non-woven fabrics and a support frame are arranged in the shell; the water distribution pipe and the support frame are positioned at the upper part of the shell; the top end of the non-woven fabric is fixed to the supporting frame, and the bottom end of the non-woven fabric is fixedly connected with the stretching fixing A water collecting tank and a water outlet are formed in the bottom of the shell; a water outlet of the lifting pump is communicated with the water distribution pipe through the pulse water outlet generator; a water collecting container is arranged below the shell water outlet; the lifting pump water inlet is communicated with the interior of the water collecting container; or the water outlet of the shell is communicated with the water inlet of the lifting pump. The process adopts the evaporation equipment to evaporate and concentrate the salt-containing water. The salt-containing water flowing from top to bottom is in countercurrent contact with the airflow flowing from bottom to top on the surface of the non-woven fabric to accelerate evaporation, circulating evaporation of the salt-containing water is achieved through the lifting pump, energy consumption is low, and evaporation efficiency is high.
Need to check novelty before this filing date? Find Prior Art