The design of an effective and safe dust capture exhaust system needs to address many factors. To make sure that occurs, you and your staff need to be very familiar with your plant’s production process. In this article, columnist John A. Constance details several steps that will help you get an effective dust capture exhaust system up and running on time and on budget.
For your pneumatic conveying system to work efficiently with other system components, each piece of equipment needs to be considered in relation to how it will impact the system as a whole. In this column, Jack and Julien discuss how filtration equipment and pneumatic conveying system operations can impact each other.
The interior of a dust collector can provide ideal conditions for a dust explosion. Here's how an isolation flap valve can help you meet safety requirements and avoid a dust collector deflagration.
In this column, author Ray Cocco explains why understanding particle hydrodynamics is crucial when designing and optimizing a cyclone. Particle flow is more than the centrifugal force on the cyclone’s wall, he says, and this can help explain some of the cyclone’s issues and limitations. Topics covered include particle flow tendencies, roping, the effects of outlet velocity and cyclone length, the importance of vortexes, dipleg design and performance, and more.
For a hybrid mining and chemical company processing lime, monitoring dust collection had become a labor-intensive and safety-risking chore. Monitoring, however, needed to be done. For help finding a better way, the company contacted Donaldson, a Minneapolis-based dust collection and filtration equipment supplier. The supplier installed one of its IoT-based monitoring systems, and now the plant can safely check data on its 29 dust collectors and six larger production baghouse collectors from one computer station.
While dust collection systems are costly, you can achieve a return-on-investment (ROI) by understanding the true costs of system operation and taking informed action to reduce those expenses. This article presents the three main cost contributors that impact the budget required to operate a cartridge-style dust collector and how to mitigate those costs to get the most cost-effective ROI for your process.
Incorporating a dust collection system into your process is important, but system installation and operation are just tips of the iceberg. You also want to ensure the system is operating as efficiently as possible. This article describes the necessary questions to ask about ductwork, hoods and pickup points, and several types of dust collectors to ensure that your system is operating effectively and efficiently.
The deadline for facilities that handle combustible dusts to complete a dust hazards analysis (DHA) is September 7. While there was some possibility this date would be extended due to COVID-19, that’s unlikely. DHA requirements are outlined in NFPA 652, but while the NFPA doesn’t mandate compliance, OSHA, the International Fire Code, and the International Building Code are all starting to do so. This article describes what a DHA is, why it’s necessary, and how to successfully complete one.
No matter what type of bulk solid material is being processed, the process is likely to require air-material separation equipment to maintain a safe workspace and achieve optimal production rates. Material property testing can help you choose the most effective type of separation equipment. This article describes what type of material testing should be performed and how to use the test data to ensure the equipment’s optimal performance.
In this article, columnist John A. Constance explains the importance of dust collection hoods in a properly operating dust collection system. He offers examples of how to avoid some of the problems associated with hoods and discusses how to work with experts to make sure your system operates in the most efficient and effective way possible.
When pneumatically transferring highly potent pharmaceutical and other powders, containment is critical. This article discusses containment standards for highly potent bulk solid materials, describes how modern vacuum conveying systems can help meet these standards, and provides two real-world examples of custom-designed vacuum conveying systems for high-potency applications.
While dust collectors may be considered ancillary equipment in powder and bulk solids manufacturing systems, the units are crucial to the process and need to be monitored appropriately. This article discusses the importance of automated dust collector monitoring and highlights five key performance indicator metrics that will help to keep your process operating with minimal interruptions.
One of the key factors to keeping your dust collector operating efficiently over its lifetime is selecting the right filters and filter media. To determine which filter is right for your operation, you must understand the importance of a filter’s air-to-media ratio, which is covered in this article.
In this column, author John A. Constance discusses factors that need to be considered when taking the initial steps of installing a dust collection system in your plant. John provides information on what to expect when dealing with a design engineer, as well as important and specific safety considerations to incorporate into the process.
Can you spot and fix design problems that are affecting your dust collection system's performance? Based on over 30 years experience in diagnosing and correcting dust collection system problems, this article's author estimates that up to 90 percent of such systems installed in the US don't perform to expectations. Up to 80 percent of these problems occur in ducting and pickup hoods, and the other 20 percent are related to equipment design capacity or selection, or both.
This article explains design, maintenance, and installation basics for pulse-jet dust collectors.
Combustible dust hazards have come into greater focus over the past several years with the development of new compliance standards. Even so, misconceptions remain that stand in the way of companies taking appropriate actions to protect their workers and facilities from combustible dust.
Many dust collectors are built as a singular, large, welded assembly, and sometimes that can make installation, space efficiency, and upgrades a challenge.
Columnist John A. Constance explains how even perfectly designed and engineered dust collection systems can fail to work properly because of actions taken or misunderstandings among company departments.
Every manufacturing operation that generates, processes, or handles combustible dust is required to complete a dust hazards analysis (DHA). This article provides an overview of the DHA process and requirements.
Columnist John A. Constance discusses actions you can take to reduce the cost of operating your dust collection system.
Dust exposure issues can occur when loading dry bulk material into vessels for transport. This article explains how spouts and filters can be used to address these issues.
A dust collection system is a major investment and needs to operate as expected to achieve the required performance results whether the system is used for dust capture or process ventilation control.
Columnist Jack D. Hilbert, along with contributing columnist David Renfert, explain how both pneumatic conveying and nuisance dust collection systems can become problematic when adequate planning and investment don't take place up front.