In the field of powder material transportation, zinc oxide, due to its unique physical and chemical properties, places higher demands on the sealing, wear resistance, and moisture resistance of the conveying system. For the production, storage, and transportation of zinc oxide, Head Powder has launched customizable pneumatic zinc oxide conveying solutions, equipped with dedicated conveying system equipment to help enterprises achieve clean, efficient, and automated material flow. Below, starting from the client's actual pain points, we systematically introduce the design concept and core values of this solution.

Customer pain points

During traditional mechanical conveying (such as screw conveying and belt conveying), the following issues often arise:

• Severe dust swirling not only worsens the workshop environment but also leads to material loss and employee health risks;
• Materials are prone to moisture absorption and clumping, causing blockages in transportation pipelines or equipment failures, affecting production continuity;
• Manual handling is frequent, labor-intensive, inefficient, and cannot meet the needs of chemical production for more accurate measurement and automated control;
• Some process steps involve high-temperature or corrosive environments, resulting in short lifespans and high maintenance costs for conventional conveying equipment.

Material characteristics

Zinc oxide is a white or pale yellow powder with a density of about 5.6 g/cm³, and a particle size usually between 0.1~10 μm. It has the following typical characteristics:

• Easy to fly: fine powders easily form suspended dust in the air, requiring fully sealed conveying;
• Strong hygroscopicity: Exposure to humid air can absorb moisture, leading to agglomeration and clumping;
• Abrasiveness: Zinc oxide particles have high hardness, posing wear risks to pipelines and valves;
• Average flowability: The static angle is relatively large, requiring pneumatic fluidization or pulse conveying designs for smooth movement.

Product Introduction

The zinc oxide pneumatic conveying system provided by Head Powder uses positive or negative pressure dense phase conveying methods, consisting of a feeding device, conveying pipelines, dust separation and removal equipment, and an automated control system. The system is custom-designed based on zinc oxide particle size, moisture content, conveying distance, and site layout, with options for stainless steel or wear-resistant alloys to facilitate continuous operation. Key units include rotary feeders, venturi ejectors, silo top dust collectors, and more accurate weighing modules, enabling full-chain sealed operations from feeding to unloading.

Product advantages

Addressing customer pain points and material characteristics, this solution offers the following advantages:

• Fully enclosed conveying, system operating under positive or negative pressure, zero dust leakage, improving working environment, material loss below 0.5%;
• Pneumatic conveying combined with dry gas tracing effectively inhibits zinc oxide moisture absorption and caking, ensuring smooth pipeline flow;
• Automation control integration, enabling remote start/stop, conveyor adjustment, and fault alarms via PLC, reducing manual intervention;
• Modular design, with wear-resistant liners for the pipes, easily worn parts can be quickly replaced, resulting in low maintenance costs;
• Vertical, horizontal, or turning paths can be customized according to customer site requirements to meet the needs of renovating old factories.