LB3000 Asphalt Mixing Plant – Technical Specifications
HEZE ZHENHUA MACHINERY MANUFACTURING LIMITED COMPANY
Tel: (0530) 3872288 / 13853037119
Product Name: Asphalt Mixing Plant
Product Model: LB3000
Rated Capacity: 180–240 t/h (under standard working conditions)
Standard Conditions:
Altitude ≤1000 m, standard atmospheric pressure, cold aggregate moisture 5%, ambient temperature 20°C, aggregate discharge temperature 160°C, mixing cycle 45 seconds, medium-grade asphalt mixture.
Conditions affecting production capacity:
Moisture refers to surface moisture; internal moisture reduces drying drum output.
Ambient temperature assumed at 20°C.
Output includes mineral powder and asphalt weight.
Aggregate density: 1600 kg/m³
Aggregate gradation must meet specification.
Mineral powder density: 1120 kg/m³
Aggregates must not be porous, flaky, or loose.
Altitude affects fuel calorific value.
Capacity based on medium-grade asphalt mixture.
Aggregate: ±0.5%
Filler: ±0.25%
Asphalt: ±0.25%
Dust emission ≤50 mg/Nm³
Hot aggregate discharge temperature: ±5°C
Finished product discharge temperature: ±3°C
≤85 dB(A)
≥95%
Fully automatic control
Semi-automatic control
Manual control
Length: 49 m
Width: 40 m
Height: 25 m
Total Installed Power: ≈680 kW
Total Weight: 280 t
The plant consists of the following major systems:
Components: Cold aggregate bins + belt conveyors (5 units)
Type: Integrated modular structure with frequency-controlled feeding
Bin capacity: 10 m³ each
Feeding opening: 3.6 m × 3 m
Loading height: 3.0 m
Safety grating installed at bin opening
Belt size: 500 mm × 3000 mm (sidewall belt)
Speed control: Imported frequency inverter
Motor power: 3 kW
Speed ratio: 1:45
Accuracy: ±2%
Motor power: 1.1 kW
Function: Ensures smooth material flow
Drive: Drum drive
Motor power: 7.5 kW
Belt width: 650 mm
Capacity: ≥300 t/h
Type: Direct feeding into drying drum
Drive: Drum drive
Motor: 7.5 kW
Belt width: 650 mm
Capacity: ≥300 t/h
Drum size: φ2.5 m × 10 m
Shell thickness: 18 mm
Material: 20Mn boiler steel
Drive: 4 × 22 kW motors via universal couplings and friction rollers
Thrust rollers: 2 cast steel rollers
Support rings: 2 thermal expansion‑mounted rings
Lifting blades: 8 mm thick, material 16Mn
Inlet box: With smoke channel and inspection door, labyrinth seal
Outlet box: Labyrinth seal
Insulation: 50 mm rock wool + stainless steel outer shell
Drum speed: 7.3 r/min
Installation angle: 3.5°
Sensor: Thermal resistance
Accuracy: ≤±5°C
Max output: 20 MW
Max fuel consumption: 1700 kg/h
Adjustment ratio: 1:4
Main fuel: Light oil, heavy oil
Ignition fuel: Acetylene
Flame length: ~4.6 m
Flame diameter: ~1.1 m
Flame temperature: ~1300°C
Combustion efficiency: >99%
Power consumption: ≤30 kW
Compressed air consumption: ≤4.5 m³/min
Includes pipelines, valves, filters
Heavy oil tank: 50 t × 1
Pipelines include valves and filters
Type: Vertical, fully enclosed, automatic chain tensioning
Capacity: ≥320 t/h
Motor: 30 kW
Chain: Double‑row roller chain
Type: Linear internal vibration
Motor: 7 kW × 2
Frequency: 1000 rpm
Amplitude: 6–8 cm
Five-deck mesh set:
3×4, 10×10, 15×15, 22×22, 33×33 mm
Screening area: 39.6 m²
Capacity: ≥360 t/h
Dust enclosure: Fully enclosed, connected to secondary dust collector
Type: 5 bins
Total capacity: 40 m³
Gate type: Rotary
Level detection: Upper level sensor
Temperature detection: Sensor in sand bin
Includes overflow, waste discharge, sampling port
Type: Single hopper, 3‑point support
Range: 3000 kg
Sensors: 3 load cells
Dust seal: High‑temperature rubber seal
Discharge: Pneumatic control
Type: Single hopper, insulated, thermal oil heating
Capacity: 300 kg
Sensors: 3 load cells
Discharge: Pneumatic
Asphalt flows into mixer by gravity
Type: Conical hopper
Capacity: 450 kg
Discharge: Pneumatic butterfly valve
Screw conveyor: φ325 mm × 3420 mm, 5.5 kW
Sensors: 3 load cells
Type: Twin‑shaft heavy‑duty mixer
Rated capacity: 3000 kg per batch
Drive: Motor + helical gear reducer + synchronous gears
Motor: 45 kW × 2
Liner life: ≥150,000 batches
Blade life: ≥100,000 batches
Discharge gate: Flip‑type
Lubrication: Centralized lubrication system
Type: 3 asphalt tanks, thermal oil indirect heating, automatic temperature control
Quantity: 3 × 50 t
Heating: Thermal oil coil
Insulation: 50 mm insulation + galvanized sheet
Level detection: Float level gauge
Agitators: 2 units
Capacity: 1 t
Transfer pump: 7.5 kW
Type: Thermal‑oil‑heated screw pump
Flow: 52.6 m³/h
Motor: 15 kW
Model: RL130 (800,000 kcal)
Fuel: Diesel
Max temperature: ≤260°C
Thermal oil pump: 2.2 kW
Gear pump: 2.2 kW
Fuel pump: 0.75 kW
Control: Fully automatic monitoring and protection
Thermal oil: User supplied (recommended 6 tons)
Large main loop + multiple branch loops with valves
Upper silo: New filler
Lower silo: Reclaimed filler
Type: Vertical silos + pneumatic butterfly valves + screw conveyors
Capacity: 45 m³
Feeding: Pneumatic tanker or Roots blower
Overpressure protection: Automatic relief valve
Dust control: Bag filter + automatic cleaning
Level detection: Upper and lower
Anti‑bridging: Air hammer
Includes ladders and safety rails
Capacity: 45 m³
Feeding: Elevator
Level detection: Upper
Anti‑bridging: Air nozzles
Includes ladders and safety rails
Quantity: 2
Size: φ273 mm × 2410 mm
Motor: 5.5 kW × 2
Capacity: 60 t/h
Type: Primary gravity + secondary baghouse
Primary separation: ≥75 μm
Secondary emission: ≤50 mg/Nm³
Max airflow: 95,000 m³/h
Working temperature: 100–175°C
Max temperature: 216°C
Cyclone + baghouse integrated
Gravity separation
Pulse‑jet cleaning
Bag material: 500 g/m² silicon‑treated
Bag quantity: 896
Filter area: 1014 m²
Bag replacement: Top removal
Temperature monitoring: Thermocouple + protection
Pressure monitoring: Differential pressure gauge
Structure: Rainproof, insulated, double dust hoppers
Includes ladders, platforms, handrails
Quantity: 1
Size: φ300 × 300 mm
Power: 1.5 kW
Quantity: 1
Power: 4 kW
Humidifier: 11 kW
Type: Centrifugal
Power: 160 kW
Airflow: 74,000–95,000 m³/h
Height: 7.5 m
Elevator: 11 kW
Screw feeder: 3 kW
Bottom‑mounted, 100 t capacity
PLC + upper‑computer management
Weighing and mixing: Manual, semi‑automatic, automatic
Power supply: 380V/220V ±5%, 50 Hz, 3‑phase 4‑wire
Breaker + short‑circuit + overload protection
Button operation + automatic protection
Computer‑controlled
Color display
Automatic weighing
Automatic compensation
Asphalt over‑weigh protection
Recipe input and printing
Secondary weighing
Computer automatic program
Manual / semi‑automatic / automatic
Recipe input
Automatic program control
Auto start, ignition, monitoring, fault protection
Size: 7.6 m × 2.8 m × 2.2 m
Comfort: Equipped with air conditioner
Not included; user may install if required.
Control System: Siemens PLC (Germany), Schneider (France)
Burner: Furuidar (Oil burner)
Screening System: Beijing Hongxing screen mesh
Weighing / Hot Bin / Main Tower:
Pneumatic components: Shanghai Xinyi
Air compressor: Kaishan
Sensors: Ruima
Gearbox and Bearings:
Gearbox: Jiangsu Guomao
Bearings: Timken
Baghouse Dust Collector Bags: Hebei Huanke
Asphalt Heating Tank and Pump System:
Asphalt tanks: Shandong Wucheng
Asphalt pump and plug valve: Zhejiang Qingtian Shanggui
Double-end ring spanner set (8 pcs) – 1 set
Double-end open spanner set (8 pcs) – 1 set
Adjustable wrench 36×300 mm – 1
Adjustable wrench 55×450 mm – 1
Wire pliers 200 mm – 1
Pipe wrench 45×350 mm – 1
Flat file 250‑II – 1
Flat screwdriver 200×8 mm – 1
Phillips screwdriver 200×8 mm – 1
Electrician screwdriver 100×5 mm – 1
Machinist hammer 0.5 kg – 1
Octagonal hammer 8.2 kg – 1
High‑pressure grease gun – 1
Oil can 1 kg – 1
Note: Actual configuration may vary due to technical upgrades.