As a high efficient process of removing the noxious gas containted in fume, the dry process system adopts the utilised scheme to simplify the system, cuts cost as well as decreases the error rate. By improving the dedusing technics can we realized the aforementioned process, that’s why we call it dry process system of hazardous gas. Given that the bag filter has been widely used in buliding material, chemical industry, metaluygy,non-metallic mineral and food industry,ect. We will put the emphas is on its noxious gas removal techniques instead of expanding on its technical principles.
垃圾焚烧炉尾气中的有害物质和燃煤锅炉煤中的硫燃烧后主要是以二氧化硫的形态存在,这种呈气态的二氧化硫和有害气体是无法用任何其它种类除尘器收集和捕捉的。本技术是通过向含有粉尘、二氧化硫和有害气体的烟气中喷射熟石灰干粉和反应助剂来实现脱硫、脱有害气体的。二氧化硫、及有害气体和熟石灰在反应助剂的辅助下充分发生化学反应,形成固态硫酸钙(CaSO4)和其它附着物,附着在粉尘上或凝聚成细微颗粒,随粉尘一起被袋式除尘器收集下来。
The noxious gas contained in the tail gas out of garbage incinerator and coal burning boiler is collected by bag filter with japanese techniques, This technology can achieve desulfuration and harmness gas through ejecting slaked lime dry power and reaction auxiliary agent to fult gas, sulfur dioxide and harmful gas.harmful gas and slake lime carry chemical reaction adequay,forming solidastate calcium sulfate and and other attachments, which will either adhere to stive or coacervate into nice granule and finally been absorbed.
熟石灰干粉和助剂的投放量,根据烟气中二氧化硫和有害气体的含量多少而定,过程中设有多组分气体自动测定装置,以确保干粉和反应助剂用量的经济性。熟石灰干粉和反应助剂分别存放在各自的储罐内,投放量由自动调节装置控制。
Dos of slaked lime dry powder and reaction assistant is up to the quantity of noxious gas, there are groups of sub-gas automatic tester which ensures economic usage of dry powder and reaction auxiliary agents. Slaked lime dry powder and reaction auxiliary agents is desposited in stock tank respectively and the input amout is controlled by automatic tester.
A、粉尘排放浓度:<10mg/Nm3;dust emission concentration
B、SO2排放浓度:<150mg/Nm3;emission concentration
C、HCl排放浓度:<50mg/Nm3;emission concentration
D、HCl及重金属:满足国家排放标准;HCL and heavy metal: satisfied national emission standard
E、二恶英(DIOXIN):日平均<0.1ng-TEQ/Nm3;daily average capacity
F、滤袋平均使用寿命:3~5年;Filter bag average using life:3-5years
G、随主机运转率:100%。Running rate along with main machine:100%
本产品的特点主要体现在:技术创新、结构创新和工艺创新等。
技术创新:本项目采用干法工艺技术,通过向袋式除尘系统喷射添加特殊助剂活性石灰,除去垃圾焚烧尾气和燃煤锅炉尾气中的二氧化硫(SO2)及其它有毒、有害成分。该工艺技术实现了袋式除尘器兼固一气分离和气一气分离的功能。为国内处理垃圾焚烧炉尾气和燃煤锅炉尾气提供具有先进水平的处置设备。
结构创新:设计理念是在不改变袋式除尘器基本原理和除尘效率的前提下,通过结构创新,设计出的袋式除 尘器,将干法脱硫过程融入其中,实现除尘脱硫一体化。
工艺技术创新:本项目为克服目前采用湿法除尘脱硫工艺可能造成水的二次污染和系统结垢堵塞的缺陷,而采用干法除尘脱硫及其它有害气体的工艺技术。
Characters of the product are mainly: technical innovation,structural innovation, process innovation and so on.
Technical innovation:This project adopts dry processing technology to eliminate noxious ingredients contained in the tail gas of the incinerator and coal boiler through ejecting active lime into the bag filter.This processing technology realized the function of bag dust remover which consider the needs of both solid-gas and gas-gas separation,meanwhile, it also provides the national tail gas treatment of incinerator and coal boiler with international advanced professional disposal equipment.
Structural innovation: The design concept is to product new type bag filter through structural innovation at the basis of notchanging the filter’s original priniple and dust removal efficiency.
Processing technology innovation:The current semi-drying process could cause secondary water pollution and system scale plugging, while the drying method we are adopting now can overcome such defects.