Electrochemical hardness-removing and turbidity-removing integrated device for processing coal gasification grey water or black water, method for processing coal gasification grey water or black water and application of electrochemical hardness-removing and turbidity-removing integrated device

An electrochemical and electrochemical reaction technology, applied in chemical instruments and methods, sludge treatment, sedimentation treatment, etc., can solve the problems of large amount of sludge, inability to effectively solve scaling and fouling, and long sedimentation time, and achieve Effect of reducing fouling tendency

Inactive Publication Date: 2017-06-13
BEIJING JINGRUN NEW TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the problems that the existing coal gasification gray water or black water treatment process cannot effectively solve the problem of scaling and fouling, as well as the long reaction and sedimentation time, low softening efficiency, large amoun

Method used

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  • Electrochemical hardness-removing and turbidity-removing integrated device for processing coal gasification grey water or black water, method for processing coal gasification grey water or black water and application of electrochemical hardness-removing and turbidity-removing integrated device

Examples

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Example Embodiment

[0054] Example 1:

[0055] Such as figure 1 As shown, this embodiment provides an integrated electrochemical hardening and turbidity removal device for treating coal gasification ash water or black water. The device includes an electrochemical reaction zone 1, an alkalinity adjustment zone 2, and a precipitation zone connected in sequence. 3.

[0056] The electrochemical hardening and turbid removal integrated device also includes an alkalinity dosing device 4, a sludge treatment device 5, a power supply module 6 and a detection control module 7. The alkalinity dosing device 4 is connected to the alkalinity adjustment zone 2. , The sludge treatment device 5 is connected to the precipitation zone 3, the power module 6 is connected to the electrochemical reaction zone 1, and the detection control module 7 is connected to the electrochemical reaction zone 1 and the alkalinity adjustment zone 2.

[0057] Wherein, the sludge treatment device 5 is a plate and frame press, the power suppl...

Example Embodiment

[0058] Example 2:

[0059] This embodiment provides an integrated electrochemical hardening and turbid removal device for processing coal gasification ash water or black water, except that the sludge treatment device 5 is a screw press, and the power supply template 6 uses a pulsed power supply. The material of the electrochemical reactor set in the electrochemical reaction zone 1 is metallic aluminum, the precipitation zone 3 adopts inclined plate type precipitation, and the material of the inclined plate is glass fiber reinforced plastic, and the other structures are the same as the device in embodiment 1.

Example Embodiment

[0060] Example 3:

[0061] This embodiment provides an integrated electrochemical hardening and turbidity removal device for processing coal gasification ash water or black water, except that the sludge treatment device 5 is a vacuum belt machine, and the power supply template 6 uses an AC power supply. The precipitation zone 3 adopts inclined tube type precipitation, and the material of the inclined tube is temperature-resistant organic material polytetrafluoroethylene, and the other structures are the same as those of the device in Embodiment 1.

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Abstract

The invention provides an electrochemical hardness-removing and turbidity-removing integrated device for processing coal gasification grey water or black water, a method for processing coal gasification grey water or black water and application of an electrochemical hardness-removing and turbidity-removing integrated device. The device comprises an electrochemical reaction area, an alkalinity regulating area and a settling area which are sequentially connected. The method includes: performing electrochemical processing on to-be-processed coal gasification grey water or black water, generating flocculation nucleuses in an in-situ manner, and forming a flocculation nucleus network; regulating the alkalinity of the coal gasification grey water or black water after the electrochemical processing to allow the scaling ions in the coal gasification grey water or black water to have reaction to generate sediments, and processing the sediments to obtain processed coal gasification grey water or black water. The method has the advantages that integrated full-automatic control is adopted, the hardness, turbidity or suspended matter of a coal gasification grey water/black water system are removed effectively, the scaling tendency of the system is lowered, system heat exchanging efficiency is increased, long-term stable operation of the system is guaranteed, and the method can be widely popularized and used in the field of coal gasification.

Description

technical field [0001] The invention belongs to the technical field of coal gasification gray water or black water treatment, and relates to a device for treating coal gasification gray water or black water and its treatment method and application, in particular to an electrochemical removal method for treating coal gasification gray water or black water. An integrated device for removing turbidity and its processing method and application. Background technique [0002] The coal gasification gray water / black water system is an important part to ensure the stability of the gasifier and the normal operation of the entire coal gasification process. Its main features are: high temperature and wide range of changes; high content of calcium ions, magnesium ions and silicon dioxide , mainly due to high calcium hardness; high content of suspended solids and high turbidity in gasification black water. When the above factors are serious, it will lead to the deposition of suspended so...

Claims

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Application Information

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IPC IPC(8): C02F9/06
CPCC02F1/008C02F1/463C02F1/66C02F9/00C02F11/122C02F11/123C02F11/127C02F2001/007
Inventor 肖东凡殿才金志娜吴珍汉夏子辉张海生傅承朱世朋赵京京田亚飞
Owner BEIJING JINGRUN NEW TECH DEV
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