Powder & Solids

Company Uses Spiroflow Systems to Solve Powder Handling Problem

By Chemical Processing staff

Mar 27, 2014

Spiroflow Systems recently worked with Access Security Products Ltd. to resolve a powder handling problem with a proprietary cement mixture used in the company’s manufacturing process.

Access Security is a manufacturer and supplier of burglary and fire-resistant safes, vaults and physical security equipment.  The company uses an expensive proprietary cement mixture in the walls of their safes and vaults rendering them almost impenetrable to thieves and fire. 

spiroflow0327This castable material has an extremely high compressive strength and provides maximum burglary resistance.  It also happens to be a very difficult product to handle.  The material is a fine powder, which arrives by container quite compacted, has very poor flow characteristics bridges easily, is very abrasive and readily absorbs moisture. 

Spiroflow Systems recommended its T4 single-trip bulk bag unloader, a combination of flexible screw and aero mechanical conveyors and a control panel. The T4 has a pneumatic bag piercing knife to cut open the bottom of each single trip bulk bag.  It also has a dust evacuation frame supplied with a rubber dust seal membrane located inside the support dish for dust control. The unloader was supplied with four corner massage and vibration to encourage material flow. Additionally the pneumatic bag piercing knife serves to encourage material flow by breaking up compacted material in the bottom of the bulk bag.

Access Security reports that the new powder handling system performs at twice the required rate without material build up. The closed system keeps the cement powder dry and contained resulting in minimal product waste and a clean, safe environment for employees. 

The system empties each bulk bag in 15 minutes.  The company’s goal was to empty each 20-ton container in 10 hours. The company has cut that time in half, according to Access Security.

For more information, visit  www.spiroflowsystems.com.