Baghouse Problem
Google Goyen Controls.
Look for their P2 baghouse controller with automatic tube cleaner.
Michael Reid. ■
Thanks
thanks pneumatics is not my expertise, I reviewed and gave to the customer with the problem. ■
Bag House Problem
First off, with such a blinding problem, I'd look at a bag house with more filter area to solve the problem.
To make the differential pressure measurement, I would use a pressure sensor which is of a metallic diaphragm design, rather than tubing to a dP gauge. The metallic diaphragm is fitted to the dirty side of the dust collector and does not have tubing to clog. If you stay with a conventional dP gauge, there are some systems out there which automatically clean the tubing with an intermittent blast of air cleaning out the lines, or to enjoy longer intervals between tube clogging, you can use common pipe fittings to make a dust trap at the dirty side tubing connect.
You need to also assure that the compressed air is truly dry, with a dew point of - 40 (C or F as they are equal at -40).
You may want to either increase the frequency of cleaning, or employ a 'smarter' control timer which monitors your dP. As the dP increases the timer increases the frequency of pulsing. A simpler means is a Photohelic dP gauge which has a high set point which is a switch that ties into the dust collector timer board. When the dP reaches your set point the timer is energized which turns on the pulse cleaning until the pressure drops below the set point. ■
Bag House Problem
The problem is that when the bags of the dust collector are clogged with cement on a cement load out bin, it disrupts the loading process. We have looked at various pressure alarms (similar to Dwyer 1900) that would sense the higher pressure caused by the clogged condition, but the small tubes to connect the device would definity clog with cement making the device useless and adding a filter would simply add another maintenance item. Is there a better way to indicate a blinded bag condition? ■