Bottom-Up for PVC Compounding

The Benefits of Going Bottom-Up for PVC Compounding

HorizonPSI has a long history of designing and building material handling systems for the chemical and plastic industries. When considering what type of system to build for polyvinyl chloride (PVC) compounding, it’s often the configuration of the existing building or overall cost of a new building that determines the appropriate blend system configuration.

The bottom-up design, as shown below, allows for a lower head height by housing more equipment at ground level. Bulk Bag Unloaders, hoppers and feeders housed close to the floor are easier to service. In this configuration, scales are customized to match the flow behavior of specific materials.

When designing your blend system, you have access to many unloading equipment options, from Bulk Bag Dischargers that handle 2000 lb. super sacks, small bag dumps that handle up to 50 lb. bags or hand add hoppers for the possible addition of micro weighments. Other advantages of a HorizonPSI Bottom-Up design include:

• Inclusion of Fluid Flow Hoppers to make sure you deliver hard to handle materials efficiently and accurately
• Does not require a separate Central Dust Collection system. Integrated dust filtration captures the particles and delivers them back to the point of inclusion, eliminating material waste.
• Tolerance scaling completed prior to the start of the next batch
• HMI system alerts for out of tolerance conditions
• Variable frequency drives on key components to optimize scaling accuracy and pneumatic conveying performance
• Minor Receivers mounted on load cells above heat mixer confirm ground level weighments are being consistently delivered.

At HorizonPSI, we engineer, build, install and maintain systems that meet specific needs. If you have the head height, we can design a top-down system just for you, but if you don’t, let’s talk about the bottom-up approach. Contact us for more information.