Bulk Bag Unloading Station Case for Plastic Pellets

Project Overview

We established cooperation with a manufacturing company from the United States to provide a customized bulk bag unloading and negative pressure conveying solution for their plastic pellet handling. This case fully showcases our strength in custom bulk bag discharging design, safety control and negative pressure conveying system integration.

Customer Requirements

1. Handling material: plastic pellets
2. Bulk bag specification: load capacity approx. 680 kg, dimension 1100 × 1200 × 1200 mm
3. Discharging operation: manual bag opening; the bulk bags are required for repeated use
4. Core demands: stable material flow rate, reliable safety protection, and material distribution to multiple production points on site

Solution & Implementation Process

1. Bulk Bag Lifting & Unloading Station Lifting equipment lifts the bulk bag out of the container and positions it above the silo inside the bulk bag feeding station frame.
2. Flow Rate Control with Iris Valve An iris valve is mounted above the silo to regulate the downward flow of plastic pellets. Operators can manually shut the iris valve when material flows excessively fast.
3. Safety Protection Design A 3-position 5-way valve is equipped in the control system of the bulk bag discharger. It prevents sudden falling of the bulk bag and avoids safety accidents under sudden power failure or equipment failure conditions.
4. Material Diversion & Negative Pressure Conveying A diverter device is connected under the silo. By negative pressure conveying, materials are delivered from the silo to different application locations on the customer’s production site.

Project Value

This customized solution proves our capability for tailored bulk bag discharging system design. Meanwhile, it highlights our professional advantages in safety interlock control and negative pressure conveying system integration for bulk solid materials.