信泰

Nomex(Aramid) needle felt filter bag

Product :

Nomex(Aramid) needle felt filter bag
Application :

Applied for dust collection of cement production line with capacity from 1000tpd to 12000tpd
Working condition :

High temperature
Apply temperature :

≤204℃,peak value:240℃
Dust content inlet :

≤1300 g/m³
Performance :

≤10 mg/Nm³
Warranty :

3 years
Contract :

EP/EPC
Delivery :

Sea/air/inland transportation
Payment terms :

T/T, L/C&Others

High temperature resistance, folding resistance, oxidation resistance, corrosion resistance and good waterproof performance

The aramid needle felt filter bag can be used for a long time in the range from 196℃ to 204℃。The shrinkage is only 1% at 250℃ and it will not embrittle, soften or melt when exposed to 300 ℃ for a short time. The dimensional stability is very good.
Good filtration performance, loose yarn and large surface area

The porosity of aramid needle punched felt is as high as 70% ~ 80%, which is 1.6 ~ 2.0 times that of ordinary fabrics, so it has good air permeability and low resistance.
High temperature thermal film coating technology is adopted to ensure high filtration precision

The surface filter layer formed by taking aramid fiber as the surface layer and impregnating the fiber with PTFE (polytetrafluoroethylene) has small pore size and high porosity, which improves the filtration accuracy of the filter material.
Automatic cutting can ensure no deviation in size and three chain stitches guarantee that there will be no opening due to blowing

The upper and lower pieces of the stitches on the body of the filter bag are flat and free of folds. The bag mouth and the interface at the bottom of the bag are folded evenly, and there will be no gap after being installed on the tubeplate.

Transporting the whole carton of filter bags into the air purification chamber through the manhole door. The filter bag must be transported in the whole carton otherwise the filter bag is easy to be scratched.	The whole carton of filter bags shall be stacked neatly in the air purification chamber.
Distributing filter bag installation protective sleeves to filter bag installation workers.	Putting the filter bag protection sleeves into the tubeplate holes.
Inserting all the filter bags into the tubeplate holes and taking out the protective sleeves.	Bending the elastic ring of the filter bag with both hands. The groove of the outer bag mouth is aligned with the edge of the tubeplate hole. The bag ring is tightly attached to the tubeplate in the whole circle and evenly tensioned.
Usually, a "snap" sound can be heard, which means that the opening of the filter bag has been clamped with the tubeplate hole. If it is not clamped, press it by hand or gently tap the periphery with a rubber hammer until it is tensioned.	Please noticing to install backward from the tail end of the jet pipe to the manhole door, which can avoid workers from stepping on the elastic circlip of the filter bag.