A: Ultimately, it depends on the product being transferred. For most free-flowing materials, transfer distances are typically 100 ft. or less. Vertical lifts of 15–20 ft. are common, with 30 ft. being the maximum. In cases where 30 ft. of lift is required, we may recommend breaking up the vertical leg into two separate sections for optimal performance.
A: The Powder Pump operates as a volumetric device, filling and emptying a set volume each cycle. Systems generally run at a minimum of two cycles per minute. Typical volumetric rates are:
By multiplying the volumetric rate by the bulk density of your powder, you can estimate mass flow rate.
Example:
40 ft³/hr (volumetric rate) × 45 lb/ft³ (bulk density) = 1,800 lb/hr (mass flow rate)
A: The system performs best with dry materials of uniform particle size. Examples include pellets, prills, and powders such as Chromic Acetate, Aluminum, salts, and acids.
Challenging materials include:
As a general rule: if the powder is dry with a narrow particle size distribution, it will transfer well.
A: Yes. De Dietrich has designed several cart-mounted arrangements for the Powder Pump. Mobile versions are engineered to keep weight down and reduce the number of utility connections required. [Read our blog post on mobile units for more information.]
A: Consumption varies depending on discharge settings. For a typical system using only a suction lance, nitrogen usage depends on how long the outlet valve remains open per cycle. Normal settings fall between 4–6 seconds.
Example:
Step 1: Total discharge time over batch
30 min (charge time) × 2 (charges/min) × 4 sec (discharge timer) = 240 sec (4 min) total discharge time
Step 2: Nitrogen consumption
4 min (total DT) × 15 cfm (nitrogen flow) = 60 cu. ft. (nitrogen usage)
A:
A: Yes, an existing vacuum source can often be used. De Dietrich will supply the recommended flow and pressure requirements to verify compatibility. Keep in mind: consistent vacuum supply is critical for reliable operation. If your house vacuum is inconsistent, a dedicated stand-alone pump may be necessary.
A: Yes. While De Dietrich typically provides the complete package, we understand there may be cases where customers want to handle programming themselves. We can provide a functional specification with our recommended operating parameters.
For larger systems, however, we strongly recommend allowing De Dietrich to furnish the control system. If needed, our system can be designed for easy integration with your plant DCS (Distributed Control System).
The Powder Pump system offers a reliable, contained, and efficient way to transfer powders across a wide range of applications. From understanding transfer rates and material compatibility to exploring options for portability and control, these FAQs highlight the flexibility and performance the system can deliver.
If you’re looking for a safer, cleaner, and more effective way to handle powders in your process, De Dietrich can help. Our team will work with you to evaluate your application and design a solution tailored to your specific requirements. Contact us today to discuss your powder handling needs and discover how the Powder Pump can improve safety and efficiency in your operation.