After 10 yrs of running on a generator I have decided to install a 200 amp service to the shop.
Wait a shop with an actual light switch-frigging high tech shit!
To run everything air the same time would be around a 100amp at most so I'm good. Most of the high voltage stuff runs at 220V.
It only took a week to get him to agree to sell the equipment separately. I'll be leaving all the PVC duct work, most chemical storage barrels, probably all electrical that is attached to the walls. I just want the equipment and that is worth it only if it's in fair condition. The exhaust fan is a big factor if not coated properly as the yrs of exhausting fumes will make it scrap basically.
Regarding the piping for ventilation and acid recovery pipes. The old saying goes why put a set of old worn tires on a Ferrari.
We ran exhaust through a dust collector (sock type tubes inside).
My daily routine for the main melt deck included adding about 100 lbs of lime to a bin and auger that fed air with the exhaust hoods into the collector ducts. If recalled correctly. The lime coated the socks and when cycled shook the accumulating residue off the socks with the lime into a collection bag below.
Roll off dumpsters holding two bags each I swapped out at some collectors. Others smaller single bags.
Fun winter activity with the biggest hi-lo trying to keep traction moving such weight around. The heaviest on a slope of course.
It was a pain hunting down a torn sock when they started to wear out. They're stacked so tight there's no room really except to push against them.
Climb up in a filter house in winter trying not to push socks around too much and tear one trying to find the torn one that started your mission..
On top greasing the swingarm that rotates above the socks entries was fine.
L.O.L..
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How to Tell if a Dust Collector Sock (Filter Bag) Is Damaged
A dust collector sock — often a fabric filter bag — can be damaged in ways that reduce airflow, cause dust bypass, and compromise air quality. Here’s how to spot damage and know when it’s time to replace the sock.
1. Visual inspection for physical damage
Look for tears, holes, worn edges, or areas where the fabric is frayed or split. These create bypass paths for dust, allowing particles to escape past the filter
coralusa.com. Also check for caking or discoloration, which can indicate heavy loading or chemical exposure.
2. Monitor airflow and suction
If the collector is not pulling air as strongly as before, weak suction at capture points can be a sign of a damaged sock. Damaged media increases resistance, reducing airflow and efficiency
RoboVent.
3. Check differential pressure (DP) readings
Rising DP across the filter indicates increased resistance. If DP is high but the sock looks intact, it may be overloaded; if DP is high and the sock shows visible damage, the sock is likely the cause
coralusa.com.
4. Listen for unusual sounds
A damaged sock can cause rattling, tearing noises, or inconsistent pulsing if it’s part of a bagged system. In bagged systems, damaged bags may also cause uneven cleaning or bypass
coralusa.com.
5. Look for dust bypass or leakage
If dust is escaping around the sock or through the filter chamber, it may be a sign of a hole, seam failure, or improper fit. This is a safety and compliance concern
RoboVent.
6. Check cleaning performance
If the sock is damaged, pulse cleaning may not fully restore it. You might notice weak or inconsistent pulses, or dust still remaining after cleaning cycles
coralusa.com.
When to replace
Replace the sock if you see any of the following:
- Visible tears, holes, or frayed edges
- Persistent high DP despite cleaning
- Sudden drop in suction or airflow
- Dust bypass or leakage
- Unusual noise or vibration from the filter chamber
Tip: Inspect socks regularly during maintenance, and replace them before they cause bypass or system failure. Damaged socks can also shorten the life of downstream components and increase maintenance costs
American Fabric Filter.
By combining visual checks with airflow and pressure monitoring, you can catch sock damage early and keep your dust collector running efficiently and safely.]
