Water membrane flue gas dust-removing and desulfurating, desulfurating high-purity gypsum making technology

Application Number: 00110632
Application Date: 2000.07.10
Publication Number: 1333078
Publication Date: 2002.01.30
Priority Information:
International: B01D53/50;B01D53/79;C01F11/46
Applicant(s) Name: Zhuang Yu
Inventor(s) Name: Zhuang Yu
Patent Agency Code: 00000
Patent Agent:
Abstract The present invention relates to a process for removing fly ash and SO2 pollution, providing post-waterfilm purified atomized flue gas meeting discharge standard for atmospheric environment protection field and by desulfurization to prepare high-purity gypsum, including the following steps: firstly, wet electrostatic removing ash and making ash-free gas, its ash-removing efficiency is greater than 99.99%, then wet electrostatic ash-removing and desulfurization, its ash-removing efficiency is greater than 99.99% and its desulfurization efficiency is greater than 98%, using same process and utilizing lime stone to make desulfurizatino of ash-free flue gas to prepare high-purity gypsum, its desulfurization efficiency is greater than 98%. The above-mentioned first wet electrostatic separation process and secondary wet electrostatic separation process are series-connected together so as to attain the goal of eliminating flyash and SO2 pollution.