Method and device for continuously freezing high-salinity water
A technology of high-salt water and frozen pools, applied in the direction of frozen water/sewage treatment, etc., can solve the problems of waste, secondary pollution resources, fresh water recovery and transportation restriction bottlenecks of natural cold energy desalination process, and achieve simple methods and devices, The effect of low energy consumption
Inactive Publication Date: 2013-02-13
NINGXIA UNIVERSITY +2
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Problems solved by technology
[0003] There are problems in the prior art: first, the fresh water recovery and transportation of the natural cooling desalination process are the main restrictive bottlenecks
Second, the treatment method of highly concentrated brine after being treated by the high brine treatment system has the risk of secondary pollution and a waste of resources
Method used
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Embodiment Construction
[0011] Such as figure 1 As shown, the device of the present invention includes step-by-step freezing pools (5), (6); high salt water injection pipeline and control system, fresh water recovery pipeline and control system, and concentrated brine discharge pipeline and control system. The pipeline and the control system are connected by the high-salt water tank (1) and the high-salt water injection pipeline, the high-salt water injection pipeline is connected with the pump (2), and the pump (2) is connected with the valve (3). The fresh water recovery pipeline and the regulating system are connected to each other by the pumps (9), (11) through the pipelines and the step-by-step freezing pools (4), (5), and the pumps (9), (11) are connected to the valves (10), (12) links to each other, power valve (10), (12) links to each other by fresh water recovery pipeline, and last fresh water is discharged in the fresh water pool (13) by pipeline. The concentrated brine discharge pipeline ...
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The invention relates to a method and a device for continuously freezing high-salinity water. The device comprises multiple stages of freezing tanks (4 and 5), a brine tank (1), connecting pipes, pumps and valves, and is characterized in that an outlet is formed in the bottom of the freezing tank of each stage, and connected with the freezing tank of the next stage through the corresponding pipe and pump. The high-salinity water is stored in the first-stage freezing tank and naturally frozen at the outdoor freezing point, after icing at the upper part stops, concentrated solution is pumped out from the bottom of the freezing tank, an ice layer is left in the freezing tank and becomes fresh water after defreezing, the concentrated solution pumped out is drained into the freezing tank of the next stage to continue freezing, and after icing at the upper part stops, concentrated solution is pumped out from the bottom of the second-stage freezing tank; and the operation is ended until no concentrated solution is iced any more.
Description
technical field [0001] The invention relates to a high-concentration brine treatment technology, a method and a device for continuous freezing treatment of high brine. Background technique [0002] With the development of industry, the discharge of industrial high-salt water is increasing. Therefore, the treatment of industrial high-salt wastewater and the recovery of fresh water for recycling are the key to establishing a water-saving society and achieving sustainable industrial development. In areas with good natural cold energy resources, the technology of using natural cold energy to industrially treat high brine is in its infancy. [0003] There are problems in the prior art: firstly, the fresh water recovery and transportation of the natural cooling desalination process are the main restrictive bottlenecks. Second, the treatment method of highly concentrated brine after being treated by the high brine treatment system has the risk of secondary pollution and waste of r...
Claims
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IPC IPC(8): C02F1/22
Inventor 刘万毅王涛明杨会军锁兴亚周永福牛震宇王泽华汪腾飞刘晓光
Owner NINGXIA UNIVERSITY