Double-tower type two-stage desalting device

A tower-type, split-in-two technology, applied in the field of water desalination treatment equipment, can solve the problems of low construction cost, high chemical consumption, complicated operation, etc. simple effect

Inactive Publication Date: 2009-07-01
青岛国电蓝德环境工程有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of complex operation and high consumption of chemicals required by the existing desalination treatment equipment, and propose a double-tower secondary desalination device, which is simple to operate, safe and reliable, with low chemical consumption and low construction cost. Low fee

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Embodiment 1

[0024] Such as figure 2 Shown, the present invention is to form a secondary desalination system by two ion exchange towers, wherein, primary cation exchange unit 1 and secondary anion exchange unit 2 constitute the first ion exchange tower; secondary cation exchange unit 3 and The primary anion exchange unit 4 constitutes the second ion exchange column. The cation exchange units 1 and 3 are respectively located at the upper part of the ion exchange tower, and the anion exchange units 2 and 4 are respectively located at the lower part of the ion exchange tower. The water outlet mechanism 12 of the cation exchange unit 1 and 3 adopts the perforated plate 18 of the cation exchange unit and the water cap and the branch pipe type, and the water outlet mechanism of the anion exchange unit 2 and 4 adopts the bottom cushion layer 14 of the anion exchange unit, and the cushion layer is a quartz sand cushion layer. Wherein, the ion exchange resin loaded in the cation exchange unit is...

Embodiment 2

[0030] In the present invention, a single ion exchange tower can constitute a first-stage desalination system, and its working principle is the same as that of Embodiment 1.

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Abstract

The invention relates to water desalination treatment equipment, in particular to a double-tower type secondary desalination device. It overcomes the defects of complex operation and high consumption of chemicals required by the existing desalination treatment equipment. The present invention comprises two ion exchangers, wherein the two ion exchangers are respectively divided into two, the upper part is set as a tank body equipped with cation exchange resin, that is, the cation exchange unit, and the lower part is set as a tank body equipped with anion exchange resin , that is, the anion exchange unit, the cation exchange unit and the anion exchange unit are superimposed to form two ion exchange towers, the first cation exchange unit and the second anion exchange unit form an ion exchange tower, the second cation exchange unit and the first anion exchange unit Constitute the second ion exchange tower. Its operation is simple, safe and reliable, with less chemical consumption, low construction cost, good regeneration effect, less regeneration waste liquid and less salt discharge, which greatly reduces the pollution to the environment.

Description

technical field [0001] The invention relates to water desalination treatment equipment, in particular to a double-tower type secondary desalination device. Background technique [0002] There are many methods of water desalination treatment, and ion exchange desalination method is a commonly used method in my country. However, during the treatment process, a large amount of acid and alkali are consumed to regenerate the ion exchange resin, and the regeneration waste liquid generated after regeneration is wastewater with high salt content, which is difficult to treat and eventually causes pollution to the natural water system. [0003] In recent years, with the development of water treatment technology and the improvement of environmental protection requirements, the use of reverse osmosis (RO) desalination has begun to be widely used. However, the desalination rate of the reverse osmosis method is generally 96% to 99%, which cannot meet the needs of some industrial sectors,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/42B01J47/04B01J49/00
Inventor 杨金旺胡廷谦
Owner 青岛国电蓝德环境工程有限公司
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