"ZG/JH" Series Powder-Specific Airtight Feeder- A Leakage-Proof, High-Precision Solution for Conveying Powders Like Fly Ash and Cement
Product Overview
The "ZG/JH" Series Airtight Feeder is a professional conveying equipment meticulously engineered by our company after in-depth analysis of the characteristics of ultra-fine powders such as fly ash and cement. Designed with the core principles of "absolute airtightness, wear resistance, and maintenance-free operation," this product effectively addresses common challenges in powder conveying, including leakage, dusting, wear, and material buildup. It is widely used for quantitative feeding, air lock, and conveying of fly ash, cement, mineral powder, and other powdered raw materials in industries such as thermal power generation, cement building materials, metallurgy, and chemicals. It is an indispensable key component in modern powder handling systems.
Application Areas
This feeder is an ideal choice for the following demanding applications:
- Power Industry: Collection and centralized conveying of fly ash from electrostatic precipitators, enabling precise feeding and loading for ash silos.
- Cement Industry: Discharge under cement silos, loading of bulk cement, and airlock feeding in pneumatic conveying systems for raw meal powder and finished cement.
- Metallurgy and Chemicals: Stable supply of powdered materials such as pulverized coal for blast furnace injection, mineral powder, and desulfurization limestone powder.
- Other Industries: Any application involving fine, highly fluid, and easily dusting powdered materials.
Core Product Advantages
1. Exceptional Airtightness, Zero Leakage:
Powder-Specific Design: Features a unique end cover sealing structure and highly elastic, wear-resistant specialty sealing materials. Effectively prevents compressed air backflow and powder leakage even under slight negative or positive pressure conditions, ensuring system pressure stability and significantly improving conveying efficiency.
Environmental Cleanliness: Completely resolves dusting issues, greatly improving the working environment, meeting environmental standards, and reducing material loss.
2. Superior Wear Resistance, Extended Lifespan:
Core Wear-Resistant Solution: Key components such as the impeller and housing liner are made of ultra-wear-resistant materials like high-chromium alloy cast iron, offering high hardness and durability far exceeding ordinary materials, multiplying the service life.
Tailored Design: Optimized impeller structure and clearance reduce wear while maintaining airtightness.
3. Anti-Bridging Design, Smooth Feeding:
Special Impeller Structure: The impeller is designed with bridge-breaking teeth or an open cavity to effectively disrupt "air arches" and "bridging" formed by powders at the silo discharge outlet, ensuring continuous, stable, and uninterrupted material flow and feeding accuracy.
4. Low-Speed Operation, Stability and Reliability:
Heavy-Duty Design: Equipped with a cycloidal reducer, providing high output torque and smooth operation. The low-speed, large-capacity design philosophy reduces material compression and wear on the blades while avoiding dusting and material breakage caused by high-speed rotation.
Strong Adaptability: Capable of handling certain levels of impurity interference with high reliability.
5. Easy Maintenance, Cost-Effectiveness:
Modular Lining: The wear-resistant liner features a modular design, allowing individual replacement of locally worn parts without discarding the entire housing, significantly reducing long-term maintenance costs.
Convenient Inspection: Inspection windows are provided for real-time observation of material flow and internal wear status, facilitating timely maintenance.
Technical Parameters (Typical Model Reference)
| Feeding Capacity (m³/h) | 10 – 70 |
| Inlet/Outlet Dimensions (mm) | Ø200 – Ø400 |
| Working Pressure (kPa) | ≤20 |
| Impeller Speed (rpm) | 12 – 25 |
| Power (kW) | 1.5 – 5.5 |
| Main Wear-Resistant Materials | High-chromium cast iron, stainless steel |
*Note: The above capacity is calculated based on fly ash (bulk density ~0.7 t/m³) and may vary depending on material characteristics and working conditions. Customization is supported.*
Selection Guide
To match your specific working conditions, please provide the following information:
Material Information: Name, fineness (mesh or specific surface area), bulk density, moisture content, temperature.
System Conditions: System pressure (positive or negative pressure value), required feeding capacity (t/h).
Installation Details: Connection flange standards and dimensions, silo pressure conditions.
Special Requirements: Such as high-temperature resistance, explosion-proofing, etc.
Our engineers will provide professional selection calculations and technical solutions to ensure efficient and stable system operation.
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