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An industrial wastewater multi-effect evaporation concentration device and method

A technology of industrial wastewater and multi-effect evaporation, applied in the direction of multi-effect evaporation, etc., can solve problems such as high operating cost, air pollution, and harmful components in steam, and achieve the effects of reducing energy consumption, continuous operation, and reducing production costs

Active Publication Date: 2017-05-17
HIT HARBIN INST OF TECH KINT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the traditional evaporation method can concentrate industrial wastewater to a specified concentration, but its operating cost is high, the steam generated in the evaporation process contains harmful components, and will cause pollution to the atmosphere, and further proposes an industrial wastewater Multi-effect evaporation concentration device and method

Method used

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  • An industrial wastewater multi-effect evaporation concentration device and method

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specific Embodiment approach 1

[0016] Specific implementation mode one: combine figure 1 This embodiment is described. The industrial wastewater multi-effect evaporation concentration device described in this embodiment includes a heat source 1, a cooling tower 2, a main pipeline 4, a third pipeline 9, a fifth pipeline 11, multiple concentration units, multiple The first pipeline 3, a plurality of second pipelines 8 and a plurality of fourth pipelines 10, the heat source 1 and the plurality of concentration units are arranged side by side from left to right, and the plurality of concentration units are arranged one by one from left to right No. concentration unit, No. 2 concentration unit, No. 3 concentration unit, ..., No. N concentration unit, each of the concentration units includes an evaporator 5, a plate condenser 6 and a plurality of steam pipes 7, and the evaporator 5 passes through a plurality of The steam pipeline 7 is connected to the plate condenser 6, and a plurality of steam pipelines 7 are ar...

specific Embodiment approach 2

[0018] Specific implementation mode two: combination figure 1 To illustrate this embodiment, the industrial wastewater multi-effect evaporation concentration device described in this embodiment also includes a plurality of first feed liquid flow control valves 12, and each first pipeline 3 is connected to an adjacent second pipeline 8 The first feed liquid flow control valves 12 are provided on the main pipes 4 between them.

[0019] The technical effect of this embodiment is: with such an arrangement, the flow rate of the main pipeline 4 can be adjusted at any time according to the flow rate at the feed liquid inlet of the heat source 1 . Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0020] Specific implementation mode three: combination figure 1 To illustrate this embodiment, the industrial wastewater multi-effect evaporation concentration device described in this embodiment also includes a plurality of second feed liquid flow control valves 13, and each first pipeline 3 is provided with a second feed liquid flow control valve 13. valve 13.

[0021] The technical effect of this embodiment is: with such an arrangement, the amount of feed liquid entering each evaporator 5 can be adjusted at any time according to the flow rate of the main pipeline 4 . Other components and connections are the same as those in the first embodiment.

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Abstract

The invention relates to an industrial wastewater concentrating device and method, in particular to a multi-effect industrial wastewater evaporating and concentrating device and method. The problems that though industrial wastewater can be concentrated into the designated concentration through a traditional evaporating method, running cost is high, vapor produced in the evaporating process contains harmful components, and the atmosphere is polluted are solved. The device comprises a heat source, a cooling tower, a main pipeline, a third pipeline, a fifth pipeline, a plurality of concentrating units, a plurality of first pipelines, a plurality of second pipelines and a plurality of fourth pipelines, wherein the heat source and the concentrating units are sequentially arranged side by side from left to right, the concentrating units include the first concentrating unit, the second concentrating unit, the third concentrating unit... and the Nth concentrating unit from left to right, and each concentrating unit comprises an evaporator, a plate-type condenser and a plurality of evaporating pipelines. The device and method are used for concentrating industrial wastewater.

Description

technical field [0001] The invention relates to an industrial wastewater concentration device and method, in particular to an industrial wastewater multi-effect evaporation concentration device and method, belonging to the field of industrial wastewater treatment. Background technique [0002] A large amount of industrial wastewater will be generated in the process of ferroalloy production, and the direct discharge of industrial wastewater into rivers will cause serious pollution to the surrounding environment. Industrial wastewater contains V--0.1g / L vanadium, NH 3 -N--1.0g / L ammonia nitrogen, Cr 6+ 0.6--2g / L chromium ion, Cl - --10g / L chloride ion, Na + --20g / L sodium ion, Ca 2+ --2.0mmol / L calcium ion and other elements, in order to avoid the pollution of industrial wastewater to the environment, and to recover the precious metals in industrial wastewater, it is necessary to extract precious metals from industrial wastewater, so it is necessary to concentrate industri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D1/26
Inventor 李伟李金峰尚德敏佟博儒
Owner HIT HARBIN INST OF TECH KINT TECH