Using bag type or electric bag composite dust collector (including bag area of electric bag composite dust collector, which is called bag filter/dust collector bag house), is one of the main means to solve the discharge of flue dust in the kiln. The dust collector filter bag is the core component of bag filter, and its quality and performance determine the operation effect, service life and economy of bag filter. Therefore, it is the focus of cement production enterprises to compare the performance of various kinds of filter bag materials and select the filter bag with higher cost performance.
Because of the difference of cement production process, the difference of smoke and dust properties, the difference of operation management level, the use conditions of filter bag vary greatly, it is difficult to compare the performance of various filter bags in actual engineering. Therefore, Shanghai Indro Industry Co., Ltd chooses the four kinds of filter bags materials used in cement kiln to compare the performance and technology in laboratory. The purpose is to guide the users to choose the baghouse filter bags with higher cost performance, reduce the blindness and randomness of the selection, and meet the requirements of high filtration efficiency, low operation resistance, energy saving and long service life.
For this purpose, as one professional filter bag and materials manufacturer, SIIC(Shanghai Indro Industry) engineers select four kinds of materials to compare and test from the performance: such as woven fiberglass with ptfe membrane, fiberglass felt, P84 needle felt (PI) and SIIC special cement kiln filter material-composite filter felt.
1, woven glass fiber media/cloth with ptfe membrane
On the surface of glass fiber filter material, a microporous film is formed, and it is densely attached to the surface of glass fiber base material, so as to give full play to the role of the ptfe lamination, and improve the water resistance, oil resistance, corrosion resistance and air permeability of the filter material. Improve the performance of glass fiber filter material.
2, fiberglass needle felt filter material
It is belongs to the nonwovens, at present needle felt filter class are commonly used in the fabric on the basis of the fluffy and no fiber net strength by forming, and go through a complex process, the needle filter in fiber staggered three-dimensional structure, this structure is conducive to the formation of a dust layer, filtering and after cleaning does not exist through the gap, the filtering effect is stable.
3, P84 fiber filter material
P84 is the trade name, scientific name polyimide, abbreviated PI.
It is a high technology, organic polymer material. The P84 fiber cross section has three leaves and has very high fiber surface area coefficient. Compared with other fibers with different shapes, the fiber has the characteristics of large specific surface area, small porosity and large porosity. In addition, P84 fiber filter material can be used continuously under 260 degrees Celsius, the instantaneous temperature can reach 280 degrees, with high filtration efficiency, low running resistance, long service life.
4, SIIC special cement kiln filter material-composite filter felt
It is belongs to the nonwoven composite filter material, using high performance aramid fiber as the main raw material, filling a certain proportion of P84 fiber, PTFE filament fabric as the support structure, absorbing the "three-dimensional asymmetric structure" and "micro hole" design, the filter material can be comparable with the 100% P84 filter material, has the advantages of high efficiency, low resistance, long life.
Dust collector and baghouse filter bags materials for cement kiln:
To help the users to choose the baghouse filter bags with higher cost performance, SIIC engineer chooses the four kinds of filter bags materials used in cement kiln to compare the performance: woven fiberglass with ptfe membrane, fiberglass felt, P84 needle felt (PI) and SIIC special cement kiln filter material-composite filter felt.