| Along with the fast development of national economy, industrial refuse and municipal solid waste are increasing by several times. The rubbish incineration treatment is wildly applied all over the world. In order to make the atmosphere contamination from rubbish incinerator under control effectively, the Standard for pollution control on the municipal solid waste incineration (GB18485-2001) stipulates that the bag filter must be used as the device for dust separation of rubbish incinerator. Because the composition of the rubbish in China is complex, the moisture content and acidity, alkalinity component content are bigger than those in foreign countries. The filter material are affected to have a short usable lifetime because of the chemistry corrosion and hydrolyze. The filter material can't accord with the practical needs.This paper is based on the "Item of Shanghai alliance project"—the "Localization of shortPTFE fibre and PTFE filter material" task. The paper is about the corrosion resistance performance and filter performance experimental study on PTFE needle filter material and PTFE compound filter material after the localization of PTFE fibre.Analyse the usability of the PPS, PTFE, GLASS and PSA fibre as the filter material of bag filter for cleaning high-temperature flue gas of rubbish incinerator according to the application and performances of the four kinds of fiber and their filter material. Bring forward a new filter material technology, and name it HST C filter material. The technology uses several kinds of fibre and makes downstream treatment to research and development low-cost and high performance filter material for rubbish incinerator.In order to solve the problem of short usable lifetime when the filter material suffering corrosion, the GLASS filter material is steeped by PTFE, and the surface layer of the GLASS fibre is conglutinated PTFE membrane. It is significant for corrosion resistance, oxygenation resistant and the water-refuse. In order to advance the filter performances, HST C filter material contain several filter layers with different density and fineness of fibre. The echelon configuration make it easy to clear dust. The dust are not easy to stay in filter material. The filter performances are advanced, and the filtration resistance fall.After the corrosion resistance performance experimental study on seven kinds of filter material in stimulant practical going, the experimental study show: HST C filter material have good corrosion resistance performance after acid corrosion, because the GLASS filter material is steeped by PTFE, and the surface layer of the GLASS fibre is conglutinated PTFE membrane. HST C filter material's usable lifetime can't be affected when used in flue gas of rubbish incinerator's alkalescence and high-humidity condition because of the filter material's configuration and performances. So HST C filter material's corrosion resistance performance can meet the rubbish incinerator's usable lifetime requirement.After the filter performance experimental study on seven kinds of filter material in clean state and dust state, the experimental study show: HST C filter material have good filter performance, close to the PTFE membrane filter material, which have the best filter performance. And HST C filter material's gas permeability are better in the seven kinds of filter material. So HST C filter material can meet the rubbish incinerator's filter requirement.In the bag filter of Gao'antun Medical Treatment rubbish incinerator No.2 system in Beijing, the biggest inlet concentration is 30g/Nm~3.The highest temperature of flue gas is 220°C.The biggest concentration of sulfur dioxide and hydrogen chloride is 4000mg/Nm~3 and 800mg/Nm~3.The biggest containing water rate is 30%. According to the requirement of the project, the biggest outlet concentration is 40mg/Nm~3.The filter efficiency is 99.9%. The filter bag is made of HST C filter material, and the usable lifetime waits for the testing of using time.
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