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A black water treatment device for entrained bed coal gasification system

A processing device and coal gasification technology, which is applied in the field of coal gasification, can solve the problems of damage to the inner wall of the flash tank, high cost, and many equipment, and achieve the effects of reducing resistance, reducing erosion and corrosion, and prolonging the service life

Active Publication Date: 2017-01-18
科林能源技术(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main defects of the existing gasification process are: the black water treatment process requires a lot of equipment and high cost; when the black water enters the flash tank, it is easy to block the inlet, and the black water with high temperature and high flow rate forms a Severe scouring can easily cause damage to the inner wall of the flash tank

Method used

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  • A black water treatment device for entrained bed coal gasification system
  • A black water treatment device for entrained bed coal gasification system
  • A black water treatment device for entrained bed coal gasification system

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Embodiment 1

[0025] figure 1 Is the device schematic diagram of this embodiment. The device of the present invention comprises a flash tank 1 and a heat exchange tower 2, wherein the flash tank 1 is connected to the heat exchange tower 2 through a steam delivery pipeline 10, and one end of the steam delivery pipeline 10 is located on the side upper wall of the flash tank 1, and the other end is Located on the side lower wall of the heat exchange tower 2, there are three feeding pipes for the high-temperature black water, and the three feeding pipes 3 are evenly distributed on the same circumference at the top of the flash tank 1 . The nozzle of feed pipe 3 is provided with conical cover 4, and the opening angle of conical cover 4 is 35 °. A cylindrical interlayer 5 is provided between the conical cover 4 and the inner wall of the flash tank 1 , and a plurality of balance holes 8 are distributed on the wall of the cylindrical interlayer 5 . The cylindrical interlayer 5 and the inner wall ...

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Abstract

The invention provides a black water treatment device for a coal gasification system of an entrained flow. The black water treatment device comprises a flash drum and a heat exchange tower, wherein a feeding pipe of high-temperature black water is arranged at the top part of the flash drum, a nozzle of the feeding pipe is formed in a conical cover, and a cylindrical interlayer is arranged between the conical cover and the inner wall of the flash drum. The black water treatment device is capable of improving the dedusting efficiency of the high-temperature black water, prolonging the service life of the flash drum, and lowering the cost.

Description

technical field [0001] The invention belongs to the field of coal gasification, and in particular relates to a black water treatment device used in an entrained bed coal gasification system. Background technique [0002] Coal gasification is an important way to cleanly utilize coal. Typical coal gasification technologies include fixed bed, fluidized bed and entrained bed. Among them, the entrained bed gasifier has a high carbon conversion rate, easy discharge of liquid ash, easy to scale up, and wide adaptability of coal types, which will be the development trend of coal gasification in the future. [0003] The main defects of the existing gasification process are: the black water treatment process requires a lot of equipment and high cost; when the black water enters the flash tank, it is easy to block the inlet, and the black water with high temperature and high flow rate forms a Severe scouring can easily cause damage to the inner wall of the flash tank. Contents of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/06
CPCC02F1/06C02F2301/063
Inventor 单育兵张亚红
Owner 科林能源技术(北京)有限公司