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Four characteristics of materials used in high-temperature resistant air filters
Four characteristics of materials used in high-temperature resistant air filtersThe organic silica gel and inorganic glue used in high-temperature air filters are cured from the surface inwards during the curing process. The thicker the glue injection height, the more difficult it is to cure. Under normal circumstances, the curing time of the glue is 3-7 days. If it is not cured* If the high-temperature high-efficiency filter is directly installed into high-temperature equipment and used normally, it will inevitably cause the high-temperature glue to crack, expand, and the glue to detach from the outer frame. In response to the above problems, the following two solutions are specially made to deal with it: the high-temperature high-efficiency filter needs to be Used normally after 7 days.High-temperature resistant air filter materials have the following four characteristics: 1. At present, high-temperature flue gas filtration adopts the method of cooling first and then removing dust. Generally, high-temperature flue gas is cooled to below 250°C by an air cooler, but it is still a high-temperature flue gas. High-temperature-resistant filter materials need to be used, and non-woven filter materials are required. The requirements are higher. Due to cost and service life considerations, high-temperature resistant filter materials are required to have a temperature range above 200°C and continuous high-temperature resistance. 2. The filter material must have sufficient mechanical strength under high-temperature conditions to improve the stability of the filter material in production and use. Generally, the breaking strength of fibers used in industrial high-temperature flue gas filter materials is relatively high, at least not less than 0.5N/tex. The filter equipment made by folding high-strength filter materials has strong impact resistance, and increases the effective filtration area, thereby improving its filtration performance, which has great practical significance. 3. With the development of science and technology and the continuous improvement of industrialization level, many specific industries and fields have also put forward high requirements for the functionality of high-temperature resistant air filter materials. Multifunctional and efficient high-temperature-resistant air filter materials are highly targeted. For example, different use occasions require one or more functions such as corrosion resistance, antistatic, flame retardant, and antibacterial. With the continuous increase in demand and the expansion of application fields, high-temperature-resistant air filter materials with multiple different functions are an important development direction in the future. 4. When filter materials are used in air filters, some need to be folded into pleated filter materials with a curved surface. The pleated filter material has good air permeability, a large filter area and dust-holding capacity, and strong resistance to stretch and breakage. Most of the current pleated filter materials use surface-treated fiber filter materials and film-coated filter materials. High temperature-resistant filter materials can play their advantages when used in pleated filter materials and can improve the overall performance of the filter. High-temperature-resistant air filters are suitable for protecting high-temperature processes, meeting stringent environmental requirements, and maintaining their integrity and calibration performance at high temperatures. Typically used in the automotive, food and beverage, and pharmaceutical industries. |
