Industrial wastewater incineration treatment system and process

A technology for industrial wastewater and treatment systems, applied in the direction of incinerators, combustion methods, combustion types, etc., can solve problems such as corrosion of refractory materials, slagging on the surface of heat exchange tubes, lack of

Active Publication Date: 2021-06-11
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is still a lack of technical solutions for the incineration of semi-coke wastewater, and the difficulties in the incineration process mainly lie in several key issues such as NOx emissions, corrosion of refractory materials, and slagging on the surface of heat exchange tubes.

Method used

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  • Industrial wastewater incineration treatment system and process

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Embodiment

[0026] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof in the embodiments of the present invention are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to Those steps or elements are not explicitly listed, but may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

[0027] It is to be understood that ...

Embodiment 1

[0051] A semi-coke wastewater incineration treatment system. Such as figure 1As shown, the gasification and incineration device 101 that burns agricultural and forestry waste Salix salix (a sand control plant that requires regular stubble and rejuvenation) has a designed fuel consumption of 2 tons / hour after receiving Kisalis salix; the main body of the gasification and incineration device 101 The height is 8.5m from the lower edge of the sleeve of the feeder 102 to the upper edge of the slag discharger 110. The bucket elevator 105 is used to lift the fuel from the ground to the silo of the feeder 102; the inner diameter of the main body of the gasification incinerator 101 is the oxidation Zone 301, reduction zone 302, carbonization zone 303 or drying zone 304 have a furnace cross-sectional inner diameter of 2.6m; the furnace in the oxidation zone 301 and reduction zone 302 adopts a water-cooled jacket structure, and the furnace in the carbonization zone 303 and drying zone 30...

Embodiment 2

[0053] The invention relates to a semi-coke waste water incineration treatment process. Such as figure 1 As shown, the gasification and incineration device 101 that burns agricultural and forestry waste Salix salix has a fuel consumption of 2 t / h, the operating temperature of the oxidation zone 301 is 890°C, the temperature of the airflow above the drying zone is 110°C, and the temperature of the incineration zone is 1100°C , primary air duct 208 air volume 2100m 3 / h, secondary air duct 207 air volume 8050m 3 / h, the outlet water temperature of the water-cooled combustion chamber 103 jacket is 85°C, the low-temperature flue gas pipe 210 shows the flue gas outlet temperature of the boiler 107 is 142°C, and the normal temperature flue gas pipe 212 shows the flue gas temperature at the outlet of the multi-stage water washing spray tower 108 is 45°C . The semi-coke wastewater raw water from the waste water pool 104 enters the drying area 304 of the gasification incinerator 101...

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Abstract

The invention discloses an industrial wastewater incineration treatment system and process, and relates to the technical field of industrial wastewater treatment. The industrial wastewater incineration treatment system comprises a gasification incineration device, a heat recovery device and a washing spraying device. By introducing other low-grade fuels, waste is treated with waste, and certain heat energy is produced. Light and heavy components of wastewater are separated in a gasification/incineration device by utilizing a'rectification type 'drying principle, the heavy components comprise high-boiling-point organic matter, alkali, salt and the like, the light components comprise low-boiling-point organic matter, water and the like, and the organic matter is degraded into carbon dioxide, water and a small number of other components through gasification/incineration. A large amount of water vapor is condensed, recycled water is recycled and can be sent to quenching coke, and low-nitrogen combustion is realized by utilizing a selective non-catalytic reduction (SNCR) principle.

Description

technical field [0001] The invention relates to the technical field of industrial (coal chemical industry, biomass energy chemical industry, etc.) wastewater treatment, and in particular to an industrial wastewater incineration treatment system and process. Background technique [0002] Wastewater incineration is a relatively common technology, such as the treatment of high-salt wastewater in the production process of acrylonitrile. Semi-coke wastewater is almost the most difficult to treat among all industrial wastewater. Although the corresponding specification "HJ2022-2012 Technical Specifications for Coking Wastewater Treatment Engineering" points out that incineration can be used for treatment, relevant research and patent applications are still rare. Semi-coke is a semi-coke product obtained from low-metamorphism coal through dry distillation process in the temperature range of 600-800°C. During the production of semi-coke, a certain amount of waste water will be gener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G7/04F23J15/00F23J15/02F23J15/04F23J15/06
CPCF23G7/04F23J15/006F23J15/02F23J15/04F23J15/06Y02E20/30
Inventor 袁洪友刘华财陈文威谢建军黄艳琴潘贤齐阴秀丽吴创之
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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