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A platform for research: civil engineering, architecture and urbanism
Waste salt purification and resourceful treatment method and system
The invention belongs to the technical field of treatment of solid wastes such as waste salt and dirty salt, and discloses a waste salt purification and resourceful treatment method and system. The system comprises a pretreatment device, a pyrolysis conversion device, a dissolution and impurity removal device, a low-temperature evaporation device, a waste salt redissolution device, a crystallization drying device, a mother liquor evaporation and concentration device, a building material firing device and a solid waste device. According to the method disclosed by the invention, organic impurities are removed and carnallite is converted into salt (sodium sulfate, sodium chloride or sodium nitrate) with a single component through pyrolysis, conversion and impurity removal under an acidic condition.
本发明属于废盐及污盐等固废处理技术领域，公开了一种废盐提纯并资源化处理方法和系统。所述系统包括预处理装置、热解转化装置、溶解除杂装置、低温蒸发装置、废盐回溶装置、结晶干燥装置、母液蒸发浓缩装置、建材烧制装置和固废装置。本发明通过在酸性条件下热解转化除杂，去除了有机杂质并将杂盐转化为成分单一的盐(硫酸钠、氯化钠或硝酸钠)。
Waste salt purification and resourceful treatment method and system
The invention belongs to the technical field of treatment of solid wastes such as waste salt and dirty salt, and discloses a waste salt purification and resourceful treatment method and system. The system comprises a pretreatment device, a pyrolysis conversion device, a dissolution and impurity removal device, a low-temperature evaporation device, a waste salt redissolution device, a crystallization drying device, a mother liquor evaporation and concentration device, a building material firing device and a solid waste device. According to the method disclosed by the invention, organic impurities are removed and carnallite is converted into salt (sodium sulfate, sodium chloride or sodium nitrate) with a single component through pyrolysis, conversion and impurity removal under an acidic condition.
本发明属于废盐及污盐等固废处理技术领域，公开了一种废盐提纯并资源化处理方法和系统。所述系统包括预处理装置、热解转化装置、溶解除杂装置、低温蒸发装置、废盐回溶装置、结晶干燥装置、母液蒸发浓缩装置、建材烧制装置和固废装置。本发明通过在酸性条件下热解转化除杂，去除了有机杂质并将杂盐转化为成分单一的盐(硫酸钠、氯化钠或硝酸钠)。
Waste salt purification and resourceful treatment method and system
一种废盐提纯并资源化处理方法和系统
QI QI (author) / QUE YONG (author) / CAO HUI (author) / WANG GUOLIANG (author)
2024-07-02
Patent
Electronic Resource
Chinese
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