The main thing I would like to see improved would be for the system to be quieter during operation; not from the standpoint of the mechanical portion, but at the workstations where the air (&dust) is removed. The greater the suction, the noisier it is.
Easier access to filters, better spark traps, better use of energy on motors, lower static pressure inside the units, longer filter life, fewer chances of fires, better compliance with explosion vents
Ease of installation and maintenance. Since I install and maintain most every brand, I find that there are a few that do not think about the extended maintenance that is required for repairs.
Filter Material to resist high temperature, Filter Material to resist corrosive, abrasive dust. Filter material to resist high moisture, anti-caking, easy to maintain, high efficiency.
The filtration elements, frame, clean up, and appropriate design attends to the needs of the customer. Therefore, my collector is tailor-made and each case is different.
Proper design of the equipment in a plant and the ducting system then coupled with the appropriate dust extraction equipment and an adequate storage containment unit.
My critical point is having a hood to capture the dust around the tools. Sometimes it is awkward and difficult to accomplish.
Something manufacturers often forget: Maintainability, easy access to replace filters and to clean "dirty side".
Having an efficient; low delta P, precollector system before dust collector to improve collection efficiency.
Down flow of dusts collection instead of up to high ceiling. Reduces the chance of dried powders explosion.
Filter media with at least 10 years or more life and requiring the least operator intervention for maintenance.
Easy cartridge removal, Longevity of filters, Filter monitoring, Monitoring pressure differentials.
Energy performance baseline and benchmark. How to audit the energy performance of a dust collector.
Compact system, free maintenance for a mount, high efficiency, safe for bag filter to food product.
I wish that the dust collectors should be more compact (less space occupied).
The new design should reduce cost of product, and increase dust collection and efficiency.
Low air to cloth ratios and higher life expectancies on filters.
None can be added as the goldseal fulfills all present needs.
The collecting dust hopper with anti adherence material.
Do not increase the dust capturing points from the original concept; attend for maintenance as per operator's manual, clean the compressed air for filters cleaning, to be in knowledge that a dust collector is capable to manage fine dusts fine emissions only.
1- It is preferable to use a cartridge filter, upstream of blowback gas (eg: Nitrogen,instrument air etc.) which is used for blowback operation, prior to entering main dust collector housing.
The dust collector is part of a total system of hoods, ductwork, fan and accessory equipment. Understand the design process and how the total system is integrated into the plant operation.
Dust collectors should not be treated as one fits all kinds of equipment. Small changes in process/material etc may greatly affect dust collector performance.
Never jump into a band wagon solution. Just because John has a good dust collector for his problem, you shouldn't copy the same for your problem.
Air-to-media ratios are the most important thing when sizing a collector. If the wrong ratio is used, the filter life will be very short.
They should give proper information for their dust creating equipments/sources and proper space to install.
Maintaining the bag house is the key issue which people tend to ignore after it is put up in service.
Cleaned return air to increases the effectiveness of working stations dusts collection efficiencies.
Search for reliable manufacturer by giving us enough information with their product construction.
Be sure of the possible amount of dust to be produced by the process you use the filter.
Consult with technical person and be familiar with the area where it will be used.
Set appropriate budget for each requirement; select the system based on engineering.
Don't over or undersize. Be sure to understand filter life and energy consumption.
Don't go for a low unknown cheap solution. Look for experience and references ..
Proper sizing of the capacity of the the dust collector.
Type of dusts to be extracted, or contamination.
Go larger than expected.