Cement Kiln

Cement Kiln

The plant currently operates two long, dry process FLS cement kilns. The project of installing the pulse jet style cleaning baghouse off the kiln is part of a larger clinker capacity increase project. The baghouse has replaced an ESP.

GORE® Membrane Filter Bag Experience

Collector Designation: Kiln feed baghouse
Collector Manufacturer: American Air
Process Description: Cement kiln exhaust
Model Number:
Particulate Collected: Cement kiln dust
Design Airflow Rate: 153,851 acfm
Design Temperature: 320º F
No. Bags/Compartment: 238
Inlet Grain Loading: 30-35 gr/dscf
No. Bags/Collector: 1,904
Particulate Bulk Density: 40-60 lbs/ft3
Bag Dimensions: 130mm dia. x 4500mm long
Bag Material: GORE-TEX® membrane/ SUPERFLEXTM fabric laminate (20 oz/yd2)
Cleaning System: Pulse jet
Top of Bag Configuration: Grooved snap band
Date Installed: January 1997
Air-to-Cloth Ratio Design: Gross 3.38:1 Net 3.74:1

Since installation, the filters have been operating at a differential pressure of 6" w.g. and are cleaning on-line. The pulse pressure is set at 4 bar (approximately 60 psi) and the filter bags are cleaning based on a photohelic gauge 2.5 times an hour. Since installation, none of the filter bags have been replaced. There are no visible particulate emissions.