Project engineers are often asked to select vendors and work with them to install new equipment. These projects can have a long-lasting impact on the success of the company and the engineer’s career. This two-part article describes how to successfully work with an equipment vendor. Part I of this article, which appeared in the June issue of PBE, provided suggestions, along with dos and don’ts, to help make choosing and working with a vendor successful. Part II explains the necessary project services that go along with building your system and describes how to choose a vendor.
Part II of this article, which appeared in PBE’s June issue, explained what a compressed-air system audit entails and the benefits of doing an audit. Part III of this three-part article describes the necessary steps to implement a postaudit plan to sustain your compressed-air improvements and savings.
Conveying systems are designed to handle specific types of materials. Determining which conveying system is well-suited for your material can be difficult if you don’t know much about the material involved. This article describes the importance of understanding your material — in this case, biomass — in order to determine the best material handling system for the application.
This month’s column discusses how to determine when it’s desirable to step — or increase — the conveying line diameter in a pneumatic conveying system and how to calculate the point along the conveying line where the diameter increase should occur.
Project engineers are often asked to select vendors and work with them to install new equipment. These projects can have a long-lasting impact on the success of the company and the engineer’s career. This two-part article describes how to successfully work with an equipment supplier. Part I of this article provides suggestions, along with dos and don’ts, to help make choosing and working with a vendor successful. Part II explains the necessary project services that go along with building your system and describes how to choose a vendor.
Managing dust within your bulk solids processing facility is easy to do once you know what that entails for your specific material and process. From knowing your material and your dust’s characteristics to identifying dust collection points and determining a dust collector type, this article details what’s involved in establishing a successful dust management system.
Air classier mill helps Wisconsin cheese and whey producer utilize valuable by-product.
Agglomeration is the process of converting fine powder particles into larger ones. This is often desirable to increase a material’s bulk density, reduce dust, and improve flowability. In wet agglomeration, the fine particles are wetted with a liquid, preferably water, which acts as a binder between the particles. Wet agglomeration equipment includes pin mixers, plough mixers, disk pelletizers, fluidized beds, and other technologies.
If the material flowing through your pneumatic conveying system is agglomerated or lumpy and jamming up the process, you may want to consider incorporating a lump breaker into your system. A lump breaker reduces the material’s particle size, eliminating agglomeration and ensuring a smooth material flow. This article details the benefits of a lump breaker and how to determine if you need a lump breaker in your pneumatic conveying system.
Compressed-air systems are essential to many powder and bulk solids handling processes. However, when confronted with compressed-air system issues, instead of tackling the problem and repair costs head-on, many plant managers look for shortcuts even though this can cost more money in the long run. Part I of this article uses real-world examples to detail some compressed-air system problems and discusses how rethinking the costs involved in fixing these issues can benefit your operation.
A feed material manufacturer installs a new automated system to create a more efficient bagging process.
Many manufacturing processes in the powder and bulk solids industry work with material that creates dust, which needs to be removed from the work area. But dust collection systems aren’t one size fits all, so the system needs to be tailored to your specific plant and application needs. Before you have a dust collection system designed and built for your plant, there are some questions you should ask.
The risk of combustible dust explosions in the powder and bulk solids industry is sometimes part of the job. However, steps can be taken to reduce those risks, including implementing explosion safety technology into your processing system. This article describes the smart technology available to help reduce the explosion risks in processes involving combustible dust.
For food manufacturers processing high-value end-products that are susceptible to damage, material breakage and loss can harm the bottom line. This article discusses how tubular cable conveyors can help reduce some of that damage compared to air-powered conveyors when processing those fragile bulk solid food materials.
A public water utility in Colorado was having fluoride powder delivered to its silos via self-unloading, pressure-differential trucks and pneumatic conveying lines. After switching powder suppliers, the fluoride powder was delivered in bulk bags, so the utility had to figure out a new way to transport the powder to the silos. An engineer from Golden Eagle Technologies and bulk solids equipment supplier Vibra Screw came up with a portable solution.
In this column, Jim Davis discusses how sample size, particle size, and scale of scrutiny are critical to evaluating whether a powder has a random mix. In some cases, a good random mix might not be statistically achievable with the ingredients and sample size you’ve planned to use. If that’s the case, then you need to adjust to make the mixture statistically achievable. Using examples, Jim explains how to do that.
This article describes how to use a loss-in-weight feeder's trending capabilities to help determine the cause of feeder performance problems.
There are several aspects to consider when choosing between a horizontal or vertical dryer for dynamic contact drying. What material are you using? Does it have specific process parameters? Is your process a batch or a continuous one? This article describes how horizontal and vertical contact dryers work and the applications for which each dryer is best suited.
Each component in a dilute-phase pneumatic conveying system — the air mover, solids feeder, pipeline, and separator — plays an important role in the system’s operation. The air mover provides the proper airflow rate required for material transport at the right velocity and pressure. This article focuses on estimating the pneumatic conveying line’s total pressure drop, which is vital in selecting a suitable air mover for your system and application.
Vibratory fluid-bed dryer-coolers are gaining popularity in a large number of applications thanks to their rapid drying times and suitability for heat-sensitive materials. This article discusses the differences between circular and rectangular vibratory fluid-bed dryer-coolers and the situations in which each would be a good fit.
In this column, authors Jack D. Hilbert and Colin Barbeau answer some of the questions they’ve been asked recently that pertain to problems with a pneumatic conveying system’s five main elements. These elements include the system’s material feed, the line charger, the gas mover, the conveying line, and the material receiver.
Vacuum conveying systems transport powders and bulk solids throughout a plant, but these systems also can help achieve other benefits such as making the environment safer, reclaiming material from dust collectors, making mixer loading easier, and reducing costs. This article discusses how different vacuum conveying systems can accomplish benefits like these in your plant.
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.