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System for removing ammonia nitrogen in coal-to-gas wastewater

A coal-to-gas and waste water technology, applied in the field of ammonia nitrogen removal system, can solve the problems such as unqualified discharge

Inactive Publication Date: 2020-12-25
河南开祥精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The ammonia nitrogen content in industrial wastewater is an important environmental monitoring indicator. The high ammonia nitrogen wastewater from the wet cleaning unit has brought great pressure to the sewage treatment plant and cannot discharge up to the standard

Method used

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  • System for removing ammonia nitrogen in coal-to-gas wastewater

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Embodiment Construction

[0043] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are some, not all, embodiments of the present invention. The following examples are only used to explain the present invention, but not to limit the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention fall within the protection scope of the present invention. Unless otherwise specified, the technical means used in the embodiments are conventional means or existing technologies well known to those skilled in the art.

[0044] It should be noted that in this article, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do no...

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Abstract

The invention relates to the technical field of coal-to-gas equipment, and provides a system for removing ammonia nitrogen in coal-to-gas wastewater, which comprises the following units: a deaminationunit for deamination treatment; a heat exchange unit used for carrying out heat exchange treatment on steam generated after deamination treatment; a recovery unit used for carrying out recovery treatment on the liquid ammonia formed after heat exchange treatment; a water supplementing unit used for supplementing water into the deamination unit; a water outlet unit used for outputting the ammoniain the deamination unit; and a steam inlet unit used for feeding steam into the deamination unit. By adopting the technical scheme, the ammonia-nitrogen wastewater is treated by the deamination unit,the heat exchange unit, the recovery unit, the water supplementing unit, the water outlet unit and the steam inlet unit, so that the sewage treatment device can realize up-to-standard discharge.

Description

technical field [0001] The invention relates to the technical field of coal-to-gas equipment, in particular to a system for removing ammonia nitrogen from wastewater used for coal-to-gas. Background technique [0002] In the coal gasification process in the prior art, the raw coal transported by belt from the coal yard is pulverized and dried in the coal grinding and drying system, and then sent to the gasifier through the pulverized coal pressurization and feeding system. The four burners. Pulverized coal and oxygen (or pure oxygen) diluted by steam are gasified in the gasifier to form synthesis gas, fly ash and slag. The synthesis gas passes through the fly ash processor to remove the fly ash inside, and comes from the dry dust removal system The high-temperature syngas enters the scrubber and is sent to the follow-up system after being washed by the washing water in the scrubber. [0003] Washing water is mainly provided by methanol shift condensate, after washing, acid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/20C02F103/34
CPCC02F1/20C02F2103/34
Inventor 李准鲁军刘闯郭彪侯祥斌李少峰李斌高振山刘峰李森张萌萌尚凤玲董慧张欣张利娟马斌平寒锐
Owner 河南开祥精细化工有限公司