Coal chemical industry black water treatment system and treatment method

A treatment system and treatment method technology, applied in the field of coal chemical black water treatment system, can solve problems such as nozzle and pipeline blockage, and achieve the effects of low cost, strong impact resistance and improved treatment effect

Inactive Publication Date: 2017-08-18
池州西恩新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the suspended matter after black water filtration is basically above 100mg / L. Although it can be returned to the tower for spraying, it will still cause blockage of nozzles and pipes.

Method used

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  • Coal chemical industry black water treatment system and treatment method
  • Coal chemical industry black water treatment system and treatment method
  • Coal chemical industry black water treatment system and treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] 4800m of black water was discharged from a coal chemical production process in Jiangsu 3 / d, the main suspended solids are coal ash particles, the suspended solids concentration is 5000-12000mg / L, with an average of 8000mg / L.

[0056] Processing systems such as figure 1 As shown, the treatment system includes a gas-liquid separation device 1, a suspension medium filter device 2, a flocculant dosing device 3, a coal chemical black water storage pool 41, a clear liquid pool 5, a concentrated liquid pool 6 and a solid-liquid separation device 7 , the lower part of the suspension medium filter device is conical, the black water discharged from the coal chemical production device flows into the gas-liquid separation device 1 by itself, and the intake liquid separation device 1 adds flocculant to the coal chemical black water storage pool 41, and then flows by itself Enter the gas-liquid separation device 1, the clear liquid overflows from the upper part of the gas-liquid se...

Embodiment 2

[0062] 1000m of black water was discharged during the coal chemical production process of a synthetic ammonia production plant in Henan 3 / d, the main suspended solids are coal ash particles, the suspended solids concentration is 400-800mg / L, with an average of 600mg / L.

[0063] Processing systems such as figure 2 As shown, the treatment system includes a gas-liquid separation device 1, a suspension medium filter device 2, a flocculant dosing device 3, a coal chemical black water delivery pipeline 42, a clear liquid pool 5, a concentrated liquid pool 6 and a solid-liquid separation device 7 , the lower part of the suspension medium filter device is conical, and the black water discharged from the coal chemical production device flows into the gas-liquid separation device 1 by itself, and the flocculant is added to the coal chemical black water delivery pipeline 42 in front of the gas-liquid separation device 1, and then flows by itself Entering the gas-liquid separation devi...

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Abstract

The present invention relates to a treatment system and treatment method for coal chemical black water. The treatment system includes: a gas-liquid separation device for removing gas from coal chemical black water added with a flocculant to obtain first treated water; a suspension medium The filter device is used to intercept the first treated water through the suspension medium, electrostatic adsorption and gravity sedimentation of the suspension medium. The suspension medium filter device is equipped with a suspension medium, and the clear liquid is obtained at the upper part of the suspension medium filter device. A concentrated solution of coal ash particles is obtained. Compared with the traditional sedimentation method, the coal chemical black water treatment system and treatment method provided by the present invention have improved treatment capacity, reduced floor area, improved treatment effect, continuous operation, low energy consumption and low cost, and no need to replace the suspension medium and chemical cleaning.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a treatment system and method for coal chemical black water. Background technique [0002] In the coal chemical industry, in the process of producing chemical raw materials with coal as raw material, there will be a stream of waste water---black water, which contains a certain amount of suspended matter, mainly coal ash. At present, for this waste water, the treatment process commonly used in the industry is the sedimentation process. The principle of the process is gravity natural settlement. Therefore, the treatment effect of the process equipment is related to the residence time of the processing object in the equipment and its own settlement performance. The equipment occupies a large area and the residence time is long. At present, the suspended matter after black water filtration is basically above 100mg / L. Although it can be returned to the tower for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D21/00C02F1/00C02F103/34
CPCC02F1/001B01D21/0012C02F2001/007C02F2103/34
Inventor 赵志安丁立平杨徐烽潘乐陈云
Owner 池州西恩新材料科技有限公司
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