One of the biggest manufacturers of railway tracks in Europe had issues with two of their main dust collectors.
The problem was that irregular baffling in two dust collectors caused swinging of the 4 meter long filterbags. This resulted in holes in bags and thereby high emissions (higher than the 20mg/m3 set out by public authorities).
Solution was to change out the 960 4m long filterbags to 960 1,26m long pleated bags equipped with spunbond polyester with PTFE coating. The shorter filters removed the challenge with the swinging filters and the filter surface was increased by 10%. By increasing filtersurface customer will see longer lifetime of filters. At the same time the surface filtration media allows optimal dustrelease, keeping a lower dP for a longer time.
The emission issues was solved and the customer is satisfied with the solution.
Ultrafine mill can also be called ultra-fine grinding, which is mainly composed of main machine, fan, ultra-fine analyzer, finished powder collector, bag filter and connecting air duct. The ultra-fine grinding equipment is mainly suitable for processing non-flammable and explosive brittle materials with Mohs hardness less than 6 grades, such as calcite, chalk, limestone, dolomite, kaolin, bentonite, talc, mica, magnesite, illite, More than 200 kinds of materials such as pyrophyllite, vermiculite, sepiolite,...
SBM is committed to the powder industry's ultrafine mill machinery and equipment more than 10 years of innovative and substantial development. In the market there are many loyal customers and considerable sales. High-quality ultra-fine grinding to customers with high efficiency, high yield, high yield of production, many processing enterprises are the only choice.In the production of ultra-fine grinding, after the bulk material is crushed to the required particle size of about 1cm by jaw crusher, the material is...
Generally, the flue gas need to be filtered from thermal power plants which is mean the flue gas exhaust from their boilers (can be coal fired, oil fired, bio-mass fuel fired boilers and so on).
Due to the exhaust gas include SOx, NOx, CO, CO2, as well as some fine ashes, so which is very easy to get an acidic circumstance, especial when the temperature lower some, the acid dew may exist, this is the main reason for us to choose the PPS filter bags.
Following are some performance curve for the operating limitatio...
For keeping the road building works continuously, the asphalt temperature always keeping at a higher side, so how to choose the filter bag for asphalt concrete mixer is very crucial.
As usual, when the temperature of dust air from the asphalt concrete mixer more than 120 degree C, we will suggest our clients to choose the aramid filter bags (made of Nomex needle felt) so as to guarantee the dust collector with a perfect performance and can work continuously for a long time.
However, due to the building materials...
1. better filter efficiency
The PTFE membrane with a cross micro open size can filter very tiny dust (fume), especial good for ultra-fine dust collection, lower emission. 2. lower resistance
The filter cloth with PTFE membrane which collect the dust is a kind of surface filtration, the surface is smooth which very good for bag purging works, so it’s not easy to be blocked even filter the ultra-tiny dust and wet dust, so the average resistance is lower when compared to the normal filter materials. 3....
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