Device and method for preparing alkali by combining seawater electrophoresis desalination with micro-interface strengthening

A desalination device, seawater power technology, applied in chemical instruments and methods, separation methods, seawater treatment, etc., can solve the problems of coastal ecological damage, occupying land resources, low economic benefits, etc., to increase the phase boundary area and speed up the reaction Efficiency, cost reduction effects

Active Publication Date: 2022-05-13
NANJING YANCHANG REACTION TECH RES INST CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Sun-dried salt occupies a large amount of land resources, and the economic benefits are not high. Direct discharge into the sea may cause serious damage to coastal ecology

Method used

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  • Device and method for preparing alkali by combining seawater electrophoresis desalination with micro-interface strengthening

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] refer to figure 1 As shown, it is a schematic structural diagram of a device for seawater electrophoresis desalination combined with micro-interface enhanced alkali production provided in the embodiment. The present invention combines the electrophoretic reverse osmosis desalination device 30 with the soda tower 10 together.

[0049] Firstly, the seawater feed pipe 20 introduces seawater into the water inlet 37 of the electrophoretic reverse osmosis desalination device 30 , in order to control the reaction process of the electrophoretic desalination, a seawater flow control valve 36 is set at the top of the water inlet 37 . The seawater enters the electrophoretic reverse osmosis desalination device 30, wherein the reverse osmosis membrane 31 is a roll ultrafiltration membrane. , the desalted water is separated out through the reverse osmosis membrane 31, and then the desalted water is discharged through the desalted water outlet 35 through the desalted water flow contr...

Embodiment 2

[0056] The other operation steps of this embodiment are the same as that of Embodiment 1, the only difference is that the CO of this embodiment 2 The micro-interface generator is a pneumatic micro-interface generator.

Embodiment 3

[0058] The other operating steps of this embodiment are the same as those of Embodiment 1, the only difference is that the cross-section of the connecting pipeline is CO 2 1 / 2 of the cross-section of the micro-interface generator, and the height of the connecting pipe is 1 / 20 of the height of the alkali-making tower.

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Abstract

The invention provides a device for preparing alkali by combining seawater electrophoresis desalination with micro-interface strengthening, which comprises an alkali preparation tower and an electrophoresis reverse osmosis desalination device, the bottom of the alkali preparation tower is provided with an NH3 micro-interface generator for crushing and dispersing NH3, a CO2 micro-interface generator for crushing and dispersing CO2 is arranged right above the NH3 micro-interface generator, and the electrophoresis reverse osmosis desalination device is arranged right above the CO2 micro-interface generator. The CO2 micro-interface generator and the NH3 micro-interface generator are connected through a communicating pipeline, the NH3 micro-interface generator is connected with an NH3 inlet pipeline, the CO2 micro-interface generator is connected with a CO2 inlet pipeline, and a liquid outlet is formed in the bottom of the alkali making tower; a reverse osmosis membrane for desalting seawater is arranged in the electrophoresis reverse osmosis desalting device, and inorganic salt in the reverse osmosis membrane is adsorbed by an electric field of an electrophoresis assembly and then is conveyed to the alkali making tower from a feeding hole. According to the invention, the reaction efficiency is accelerated, and the temperature and pressure in the alkali production tower during reaction are reduced, so that the energy consumption required by alkali production is indirectly reduced.

Description

technical field [0001] The invention belongs to the field of seawater desalination and alkali production, and specifically relates to a device and method for seawater electrophoresis desalination combined with micro-interface enhanced alkali production. Background technique [0002] Fresh water resources are crucial to human life and production. At present, many coastal cities are in short supply of fresh water resources. Seawater desalination technology is an important means to alleviate the shortage of fresh water in coastal cities. my country is vigorously developing the seawater desalination industry. The existing seawater desalination technologies mainly include membrane method and thermal method, both of which will produce a large amount of concentrated brine. There are two types of discharge into the sea. Sun-dried salt occupies a large amount of land resources, and the economic benefits are not high. Direct discharge into the sea may cause serious damage to coastal e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/469C02F1/44B01J19/00C02F103/08
CPCC02F1/4696C02F1/441B01J19/0093C02F2103/08C02F2209/40B01J2219/00867B01J2219/00873B01J2219/00961B01J2219/00963Y02A20/131
Inventor 张志炳孙海宁周政张锋李磊孟为民杨高东杨国强刘甲
Owner NANJING YANCHANG REACTION TECH RES INST CO LTD
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