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Equipment for incineration treatment and resource application of ammonium-sulfate-containing waste liquid

A recycling and waste liquid technology, applied in the chemical industry, can solve the problems of excessive content, high dust content, sulfuric acid mist and aerosol particles exceeding the standard, etc.

Active Publication Date: 2021-04-16
中国船舶集团有限公司第七一一研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current ammonium sulfate recovery equipment has many problems, such as prone to dew point corrosion, high dust content affecting the quality of ammonium sulfate, excessive NOX content in exhaust gas, excessive sulfuric acid mist and aerosol particles, and emissions The gas is prone to white smoke trailing phenomenon, etc.

Method used

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  • Equipment for incineration treatment and resource application of ammonium-sulfate-containing waste liquid

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Embodiment Construction

[0063] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.

[0064] For a thorough understanding of the present invention, a detailed description will be set forth in the following description. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of these exemplary embodiments to those of ordinary skill in the art. It is evident that the practice of the embodiments of the invention is not limited to specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail bel...

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Abstract

The invention discloses equipment for incineration treatment and resource application of ammonium-sulfate-containing waste liquid. The equipment comprises an incinerator, a waste heat recovery device and a desulfurization device. The incinerator is used for combusting the waste liquid to generate flue gas. The waste heat recovery device comprises a waste heat boiler, the waste heat boiler comprises a first membrane type wall cavity communicating with the incinerator and a second membrane type wall cavity located at the downstream position of the first membrane type wall cavity, and the upper portions of the first membrane type wall cavity and the second membrane type wall cavity communicate with each other. The first membrane wall cavity is used for reducing the temperature of the flue gas to be lower than the melting point of inorganic salt, a convection heating surface is arranged in the second membrane type wall cavity, and the second membrane type wall cavity is used for reducing the temperature of the flue gas to a first preset temperature. The desulfurization device is located at the downstream position of the waste heat recovery device, communicates with the waste heat recovery device and is used for converting SOX into ammonium sulfate and recovering the ammonium sulfate. According to the equipment for incineration treatment and resource application of the ammonium-sulfate-containing waste liquid, acid dew point corrosion of the heating surface of the boiler can be avoided.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a device for incinerating waste liquid containing sulfur ammonium and utilizing it as a resource. Background technique [0002] At present, some chemical wastewater contains a large amount of nitrogen and sulfur. For example, the waste water produced by the acetone cyanohydrin method to produce methyl methacrylate contains more than 40% by mass of ammonium sulfate, ammonium acetone disulfonate and other substances, that is, it contains a large amount of nitrogen and sulfur elements. [0003] Since the flue gas after incineration of the waste liquid containing nitrogen and sulfur elements has the characteristics of large dust content, high concentration of nitrogen oxides and high concentration of sulfur dioxide, it is necessary to treat the flue gas. [0004] Considering the problem of resource utilization, the ammonia desulfurization method is generally used to post-t...

Claims

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Application Information

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IPC IPC(8): F23G7/04F23G5/46F23J15/06F23J15/02F23J15/04B03C3/017B01D53/18B01D53/14B01D53/90B01D53/56C01C1/24
CPCY02P20/129Y02E20/30Y02P20/50Y02P20/10
Inventor 陈高雷树宽付银成闫金银李渊
Owner 中国船舶集团有限公司第七一一研究所
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