550GSM Nomex and PTFE china dust collector filter bag

Product  Description 

Aramid bag
Aramid (commonly known as aromatic polyamide fiber) has long-term temperature resistance of 204°C and instantaneous temperature resistance of 240°C. It has strong alkali resistance and medium acid resistance. It is a good material for handling high temperature gases at 180-220°C.

How to install the nomex needle-punched filter bag?

1) New technology and old nomex dust filter bag in steel industry should not be mixed to avoid the difference in damage time from affecting the normal operation of the dust removal equipment.
2) The aging of high temperature industrial dust bag filter. Mainly due to the following reasons, it is necessary to investigate the cause, take elimination measures and replace the dust filter bag. ①It hardens and shrinks due to abnormal high temperature; ②Reacts due to contact with acid, alkali or organic solvent vapor; ③Reacts with moisture.
3) The non woven industrial filter cloth should not be hung too loosely or tightly. Too loose and easy to accumulate dust, and too tight to be easily damaged.
4) After replacing the dust collector filter sleeve, blow it with compressed air first, and then check for any holes. After the holes are repaired, they will be kept for replacement. If the cloth bag is stuck with dust, wash it with water, and leave it to be replaced after it has dried.
5) The clogging of the dust filter bags. When the cloth filter bag is clogged, the resistance increases, which can be reflected by the increase in the reading of the differential pressure gauge. The clogging of the cloth bag is the main reason for the phenomenon of cloth bag wear, perforation, falling off and so on. For the cause of the clogging of the dust bag, check and repair according to the following table. Generally, the following measures are taken: ①Temporarily strengthen dust removal to eliminate the clogging of the cloth bag; ②Partially or completely replace the cloth dust collection filter bag with snap ring; ③Adjust the installation and operating conditions.

Post-treatment introduction

Burning and Pressing Treatment

The imported burning and pressing equipment and the treated needle felt filter material has the unparalleled advantages of ordinary singeing and calendering treatment on one side and double side, which not only improves the cleaning performance of the filter material, but also meets the collection of fine dust.

Water-Proof and Oil-Proof Treatment
The oil-proof and water-proof treatment of fluorocarbon resin and PTFE impregnation is adopted for the needled felt filter material, which is easier to collect dust on the surface of the filter bag of wet dust containing gas (especially for water-absorbing and deliquescent dust), avoiding and reducing the phenomenon of pasting bag.

PTFE Membrane Treatment
When the particle size of dust is less than 1 micron, or the dust has a large viscosity, or the humidity of the gas is large, the ordinary filter material can not effectively filter. The membrane filter material made of polytetrafluoroethylene (Teflon®) has high filtration precision, smooth surface, no adhesion to dust. It’s easy to clean dust and the dust does not penetrate into the filter material achieving surface filtration.

Flue gas treatment and dust removal systems in ironworks, steelworks, ferroalloy plants, refractory plants, foundries, power plants, etc.
Waste incinerators, coal-fired boilers, fluidized bed boilers and other flue gas filtration.
Asphalt concrete mixing, building materials, cement ceramics, lime, gypsum and other production sites.
Smelting flue gas filtration of aluminum electrolysis, lead, tin, zinc, copper and other rare metals, recovery of fine materials, separation of liquid and solid.
Liquid-solid separation and fine material recovery in the fields of chemicals, coke, carbon black, dyes, pharmaceuticals, plastics, etc.
Dust treatment and purification collection in mining, grain processing, flour, electronics industry, wood processing, etc.