Pneumatic Conveying Systems
With 50+ years in design, supply and installation, STT understands the intricacies of building pneumatic conveying systems for bulk materials. STT can provide unmatched service to customers across many different industries with expertise in mining, steel, chemical processing, water treatment, plastics manufacturing, and the construction market.
Why Choose a Pneumatic Conveying System?
In many circumstances, using a pneumatic conveying system to move bulk solids long distances is generally more viable and economically efficient than mechanical options such as a conveyor belt system. Pneumatic conveying systems provide an advantage over mechanical conveying for the following three reasons:
Flexible to Build:
Pneumatic conveying systems provide more options in terms of route changes and expansion. They can transport bulk materials almost wherever it is possible to install a pneumatic line, and this includes over, around or underneath your existing infrastructure.
Economical to Maintain:
Pneumatic conveying systems are relatively easy to install, maintain and operate at an economical price point.
Safe to Use:
If necessary, pneumatically conveyed materials can be completely isolated from moving parts and the environment. As a result, pneumatic conveyors limit contamination and reduce dust/air quality concerns.
Let us help guide you to the right system to get product to its destination in the quantity required with the care needed for your requirements.
Types of Pneumatic Conveying
The three types of pneumatic conveying systems that are commonly used are dilute phase, semi-dense phase, and dense phase conveying.
Pressure systems utilize positive pressure to transport material through a convey line into the receiver hopper. Positive-pressure dilute phase conveyors are best suited for conveying materials loaded from a single entry point to one or multiple destinations.
Vacuum systems utilize a negative-pressure system that works best in situations where materials are loaded from numerous inlet points and discharging them at a single point.
Dilute phase pneumatic conveying is a continuous process where a constant low pressure, high velocity airstream pushes or pulls materials at a low material-air ratio. Dilute phase conveying is generally used for materials that have a light bulk density, those that are easily fluidized such as lime, cement, flour, resins, fly ash, soda ash, and other dry bulk chemicals.
Semi-dense conveying uses medium-pressure and medium velocity which suspends only a portion of the material to flow through the air stream. As an intermediary step between dense and dilute phases, this type of conveying is most suitable for products such as cement or fly ash.
Dense phase pneumatic conveying is an intermittent or batch process where pulses of high pressure, low velocity air propels a slug of material to another location. This differs from dilute phase as the material-air ratio is much higher and, as a result, dense phase conveying is often used for materials that are friable or susceptible to product damage such as granular products, sticky products, or highly abrasive products.
Key Considerations of Equipment Components
Dilute phase pneumatic conveying systems have many different component parts that work together at the appropriate pressure or vacuum to move materials from one area to another appropriately. Each system has a number of equipment components including:
Pressure or vacuum switch
Bulk storage bin
STT is also able to provide aftermarket parts and components for existing pneumatic conveying systems as well.
Benefits of Choosing a Pneumatic Conveying System from STT
STT has over 50 years of experience building and servicing dilute phase pneumatic conveying systems for both vacuum and pressure applications. Whether you are looking to convey dry bulk chemicals such as quicklime, hydrated lime, soda ash, magnesium hydroxide, or bulk materials that need to be conveyed without contamination, our systems will ensure that you can meet your target design requirements for throughputs. STT has the knowledge and experience to select the correct air to product ratios to suit your bulk material and convey rates. We are committed to delivering system solutions and aftermarket services that exceed our customer expectations throughout the lifecycle of the system.
Industries We Serve
Our pneumatic conveying systems are used throughout a variety of industries including, but not limited to:
Cement and Construction
Municipal Water and Wastewater
Contact Our Experts
When dry bulk materials need to be pneumatically conveyed, STT has the experience and expertise to design a system for any application. Contact our experienced experts to get a quote on the right equipment or service to best achieve your goals.