Dilution blower
Designed for environmental-protection systems, the dilution blower mixes fresh air with high-temperature or high-concentration exhaust to reach the target temperature / concentration before online monitoring, sampling, or purification. It is suitable for power plants, cement/steel lines, waste-gas treatment and VOC control, handling non-self-igniting, non-explosive gases with dust or light corrosives for continuous, reliable operation.
Specifications:
Pressure range: 1 581–10 587 Pa
Air volume: 90.6–61 297 m³/h
Impeller diameter: 400–1 800 mm
Speed: ≤ 4 000 rpm
Drive type: Direct / Coupling / Belt driven
Cooling: Air / Water / Oil cooling (optional)
CONFIGURATION OPTIONS
1. CONSTRUCTION & MATERIALS
Impeller: Carbon steel; optional FRP, stainless steel, rubber lining, wear-resistant or ceramic coating.
Casing / Damper: Standard carbon steel; optional FRP or stainless steel.
Main Shaft: High-strength alloy steel.
Bearings: ZWZ / SKF / FAG / NSK.
2.SYSTEM & ACCESSORIES
Motor: High-efficiency Chinese brand or ABB / Siemens / WEG.
Optional Parts: Base frame, silencer, flexible joint, damper, rain cover, shock absorber, sensors (temperature & vibration), inverter, soft starter, monitoring instruments.
overview
Application (SCR ammonia dilution, 100–600 MW plants)
Used in flue-gas denitrification systems to dilute ammonia from the buffer tank. An ammonia/air mixer blends NH₃ with fresh air to reach the target concentration before injection into the SCR reactor.Operating range
Airflow: 5,000–50,000 Nm³/h · Pressure: 5,000–20,000 Pa · Temperature: 20–400 °C. Suitable for ammonia + air dilution duty in continuous operation.blower selection / model
Chosen as a high-pressure centrifugal blower (ID/FD service as required), with optional direct or coupling drive, VFD speed control, and explosion-proof motor per plant spec.Key features & benefits
Optimized aerodynamics, high efficiency, stable low-vibration running, easy maintenance. Optional corrosion-resistant materials (e.g., stainless/FRP), enhanced sealing, and temperature/vibration monitoring for reliable SCR ammonia dilution service.
peculiarity
CFD-optimized aerodynamics, higher total efficiency
Using computational fluid dynamics (CFD) / aerodynamic simulation to refine blade and volute geometry, the blower achieves high whole-machine efficiency and precise performance matching.High-temperature design with proven materials & cooling
Built with heat-resistant alloys, rational cooling schemes (air/water/oil as required), and a deformation-controlled structure to resist thermal growth and maintain clearances at elevated temperatures.Tier-one components for reliable continuous operation
Critical parts—bearings, motors, couplings, seals, controls—are sourced from renowned domestic and international brands, boosting operational reliability, uptime, and service life.
Structure
Professional Support Throughout Every Stage — From Selection to After-Sales Maintenance
At Dajing blower, we are dedicated to providing clients with a comprehensive, one-to-one service experience.
Our process covers every stage — pre-sale technical consultation, in-sale production tracking, and after-sale “Private Manager” support — ensuring efficiency, safety, and customer satisfaction.
Expert Technicians for Your Equipment Needs
Each customer is assigned a professional engineer responsible for model selection and technical consultation. We use advanced CAD and CAPP software to provide accurate blower designs and simulate performance for various working conditions.
In-Sale: Full-Process Tracking Service
Your designated project manager monitors the entire process — from material selection, manufacturing, and testing, to shipment and installation. We ensure every blower meets strict quality standards and delivery deadlines.
After-Sale: Private Manager Service
After delivery, Dajing provides 24/7 “Private Butler” after-sales support. Our service follows the “1224 Standard”: respond within 1 hour, provide feedback within 2 hours, and resolve within 24 hours.
