Power and fluid handling equipment spare parts (fans/valves/pumps)
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Product Introduction
I. Centrifugal Fans (for Sintering / Coking / Blast Furnace Blowing)
Applicable Scenarios
Spare parts for industrial fans in sintering machine main draft fans, coking plant gas fans, blast furnace blowing systems, etc.
| Component Types |
Standard Specifications |
Example of Adaptable Equipment Models |
| Impeller |
Diameter Φ800-Φ4000mm, Material Q345B / Wear-resistant Cast Iron / Stainless Steel, Number of Blades 12-24, Speed 960-2900r/min |
Adaptable to TRT blast furnace fans, sintering main draft fans |
| Bearing |
Rolling bearings (model 6318-6332) / Sliding bearings (babbitt), rated load 20-150kN, temperature resistance ≤120℃ |
Adaptable to D900-11 centrifugal blower |
| Coupling |
Diaphragm coupling (specification LT10-LT20) / Gear coupling (CLZ40-CLZ80), torque range 5000-50000N・m |
Adaptable to gas pressure centrifugal fan |
| Housing Liner |
Thickness 10-30mm, Material wear-resistant cast steel / ceramic composite, applicable dust concentration ≤100g/m³ |
Sintering machine head electrostatic precipitator fan |
Core Technical Parameters
Selection Points
Select according to medium characteristics:
Gas transmission selects explosion-proof impeller (Ex d IIBT4) + stainless steel shaft; dusty flue gas selects wear-resistant cast iron impeller (HT300).
Match according to equipment model:
Blast furnace blower (such as AV50-14) requires customized impeller dynamic balance accuracy G2.5 grade, bearing temperature rise ≤40K.
II. Axial Flow Fans (for Cooling Systems / Workshop Ventilation)
Applicable Scenarios
Spare parts for rolling mill cooling fans, cooling tower fans, and workshop ventilation equipment.
| Component Types |
Standard Specifications |
Example of Adaptable Equipment Models |
| Blade |
Diameter Φ500-Φ3000mm, Material aluminum alloy / fiberglass, number of blades 4-12, installation angle 15°-45° adjustable |
Adaptable to L800 cooling tower axial flow fan |
| Motor |
Three-phase asynchronous motor (power 5.5-200kW), protection level IP55, insulation class F, temperature resistance ≤130℃ |
Adaptable to DZ series low-noise axial flow fan |
| Shock Absorber |
Spring damper (load 50-500kg) / Rubber damper (Shore hardness 60±5HA), noise reduction 10-15dB |
Workshop ventilation axial flow fan |
| Flow Straightener |
Diameter Φ600-Φ2500mm, Material Q235B, flow straightening angle 0°-30° adjustable |
Rolling mill emulsion cooling fan |
Core Technical Parameters
Selection Points
Match according to air volume and pressure:
Cooling tower fan (air volume 50000-200000m³/h) requires fiberglass blades + waterproof motor (IP65).
Select according to ambient temperature:
High-temperature workshop (≥80℃) selects high-temperature resistant bearings (temperature resistance ≤180℃) + heat sink motor.
III. Roots Blowers (for Pneumatic Conveying / Desulfurization and Denitrification)
Applicable Scenarios
Spare parts for coal powder conveying fans, limestone powder conveying fans, desulfurization oxidation fans, etc.
| Component Types |
Standard Specifications |
Example of Adaptable Equipment Models |
| Impeller |
Diameter Φ200-Φ800mm, Material ductile iron (QT450), clearance 0.15-0.3mm, speed 600-1500r/min |
Adaptable to JGR600 Roots blower |
| Gear |
Module 4-10, Material 20CrMnTi, accuracy grade 6, rated torque 200-2000N・m |
Adaptable to pneumatic conveying Roots blower |
| Sealing Device |
Labyrinth seal / Mechanical seal, applicable pressure -50kPa-+100kPa, leakage ≤1% |
Desulfurization and denitrification Roots oxidation fan |
| Silencer |
Noise reduction 25-40dB, Material Q235B + sound-absorbing cotton, interface diameter DN80-DN300 |
JAS series Roots blower |
Core Technical Parameters
Selection Points
Select according to pressure level:
Positive pressure pneumatic conveying (+50kPa) selects three-lobe Roots impeller (efficiency is 8% higher than two-lobe); negative pressure suction (+-30kPa) selects wear-resistant coated impeller.
Select according to medium cleanliness:
Dusty gas (≤50mg/m³) selects labyrinth seal + dustproof bearing, and regularly replaces lubricating grease (cycle 2000 hours).
IV. Dust Removal Fans (for Waste Gas Treatment System)
Applicable Scenarios
Spare parts for baghouse dust collector induced draft fans, electrostatic precipitator exhaust fans, and VOCs treatment fans.
| Component Types |
Standard Specifications |
Example of Adaptable Equipment Models |
| Impeller |
Diameter Φ600-Φ3500mm, material wear-resistant cast steel (ZGMn13), number of blades 16-28, balance accuracy G6.3 grade |
Suitable for MC240 type baghouse dust collector fan |
| Bearing housing |
Capacity 5-30L, material QT400, with water-cooled jacket (cooling water volume 1-5m³/h), temperature resistance ≤200℃ |
High-temperature flue gas dust removal fan |
| Adjustable damper |
Diameter Φ800-Φ3000mm, material Q235B + anti-corrosion coating, adjustment angle 0°-90°, leakage rate ≤2% |
Electrostatic precipitator system induced draft fan |
| Wear-resistant liner plate |
Thickness 8-20mm, material ceramic patch / hard alloy overlay welding, applicable dust concentration ≤300g/m³ |
Blast furnace ore trough dust removal fan |
Core Technical Parameters
Selection Points
Select according to dust characteristics:
High-hardness dust (such as silica sand) selects ceramic patch impeller; high-temperature dust (≤300℃) selects air-cooled bearing housing.
Select according to explosion-proof grade:
Flammable and explosive dust (such as magnesium powder) selects explosion-proof motor (Ex d IIC T4) + anti-static impeller (surface resistance ≤10⁹Ω).
V. General Accessories Technical Specifications
1. Fan impeller
Dynamic balance standard: G2.5 grade (precision fan) / G6.3 grade (ordinary fan), residual unbalance ≤5g・mm/kg.
Repair service: Provide impeller overlay welding repair (wear ≤3mm), dynamic balance correction (cost is 30-50% of new product).
2. Bearings
Lubrication requirements: Rolling bearings use lithium-based grease (NLGI grade 2), sliding bearings use L-TSA 46 turbine oil.
Life index: Rated life L10 ≥ 50000 hours (when speed ≤1500r/min).
3. Couplings
Alignment accuracy: Radial ≤0.05mm, axial ≤0.03mm, needs to be installed with a laser alignment instrument.
VI. Spare Parts Selection Support
Provide three elements:
Equipment model (such as D1200-11 centrifugal fan), operating parameters (air volume/air pressure), and photos of faulty parts.
Fast matching service:
Regular accessories match models within 24 hours, non-standard parts provide drawing customization (cycle 7-15 days).
VII. Quality Assurance
Original factory process: Core components such as impellers and bearings are produced using original factory drawings, and key processes (such as impeller welding) are inspected using UT flaw detection.
Test report: Each batch of accessories is accompanied by a dynamic balance test report and a material inspection report, and supports third-party testing.
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Yangqu Industrial Park, Shanxi Transformation and Comprehensive Reform Demonstration Zone
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