LB‑2500 Relocatable Batch-Type Fully Automatic Asphalt Mixing Plant

Technical Specification
Specification No.: SDZHLB‑2500

HEZE ZHENHUA MACHINERY MANUFACTURING LIMITED COMPANY

I. Main Parameters

1. Model: LB2500

2. Structure: Modular design, easy assembly and disassembly, batch-type, fully computer-controlled

3. Production Capacity: 150–200 t/h

4. Mixing Capacity: 2500 kg per batch

5. Operating Voltage: 380V / 220V, 50 Hz

6. Operation Modes: Automatic / Semi-automatic / Manual / Full computer control

7. Installed Power: Approx. 520 kW

II. Main Technical Specifications

1. Cold Aggregate Supply System

1.1 Cold Aggregate Bins (with safety grating at bin opening)
A. Capacity: 9.5 m³
B. Quantity: 5 units

1.2 Aggregate Feeding Conveyor (frequency-controlled)
A. Type: Belt feeder
B. Capacity: 0–60 t/h
C. Belt Width: 500 mm
D. Quantity: 5 units
E. Gear Motor: 3 kW

1.3 Vibrator
A. Model: ZF18‑50
B. Quantity: 1 unit (installed on sand bin)

1.4 Collecting Conveyor
A. Type: Three‑idler trough frame
B. Capacity: 240 t/h
C. Belt Width: 650 mm
D. Motor: 4 kW

1.5 Feeding Conveyor
A. Type: Three‑idler trough frame
B. Capacity: 240 t/h
C. Belt Width: 650 mm
D. Motor: 4 kW

2. Aggregate Drying System

2.1 Drying Drum
A. Type: Inclined rotary counter‑flow drum (insulated stainless‑steel outer shell)
B. Output:

• Moisture 1%, discharge temp. 160°C: 200 t/h

• Moisture 3%, discharge temp. 160°C: 150 t/h
  C. Drum Size: φ2200 mm × 10000 mm × 16 mm
  D. Motor: 15 kW × 4 units
  E. Drive: Friction drive
  G. Temperature Sensor: Installed at drum discharge box

2.2 Fuel Burner System
A. Low‑pressure, low‑noise proportional burner: 1200 kg/h
B. Burner Power: 15 kW
C. Fuel Pump: 3 kW
D. Fuel Tank: 50 t
E. Fuel Consumption: 7 kg/t

3. Hot Aggregate Elevator

A. Type: Vertical double‑chain bucket elevator, gravity discharge
B. Capacity: 240 t/h
C. Motor: 30 kW

4. Aggregate Screening System (Vibrating Screen)

A. Type: Five‑deck inclined vibrating screen with high‑strength manganese steel mesh
B. Capacity: 300 t/h
C. Vibrating Motors: 5.5 kW × 2 units
D. Standard Mesh Sizes (mm): 5×5, 10×10, 15×15, 26.5×26.5, 40×40
(Special mesh sizes available upon request)
E. Equipped with vibration‑damping connection to main frame

5. Hot Aggregate Storage Bin

A. Structure: 5 compartments with overflow and waste discharge ports
B. Total Capacity: 40 m³
C. Equipped with level sensors
D. Newly designed discharge gates for improved weighing accuracy

6. Weighing System

Aggregate, asphalt, and filler weighing all use three‑point load cell measurement.
Signals are processed by electronic scale and computer with automatic dynamic compensation and zero‑tracking.

6.1 Aggregate Weighing
A. Range: 1–2500 kg
B. Hopper Volume: 2.0 m³

6.2 Asphalt Weighing
A. Range: 0.1–300 kg
B. Hopper Volume: 0.25 m³

6.3 Filler Weighing
A. Range: 0.1–300 kg
B. Hopper Volume: 0.30 m³
C. Discharge via screw conveyor

7. Mixing System

A. Type: Twin‑shaft compulsory batch mixer
B. Capacity: 3000 kg per batch
C. Motors: 45 kW × 2 units
D. Materials:

• Mixing blades and liners: High‑chromium cast iron

• Mixing arms: High‑chromium cast steel
  (All supplied by certified manufacturers)

8. Filler Supply System

8.1 Mineral Powder or Reclaimed Filler Silos
A. Type: Vertical cylindrical
B. Capacity: 2 × 45 m³

8.2 New Filler Screw Conveyor
A. Type: Inclined screw
B. Capacity: 20 t/h
C. Motor: 5.5 kW
D. Quantity: 1 unit

8.3 Reclaimed Filler Screw Conveyor
A. Type: Horizontal screw
B. Capacity: 18 t/h
C. Motor: 5.5 kW
D. Quantity: 1 unit

8.4 Filler Elevator (moisture <2%)
A. Quantity: 1 unit
B. Capacity: 25 t/h
C. Type: Bucket elevator
D. Motor: 11 kW
E. Waste Filler Screw Conveyor: 1 unit, 5.5 kW

9. Air Supply Equipment (Burner)

A. Type: Screw air compressor, air‑cooled
B. Airflow: 3.6 m³/min
C. Pressure: 0.8 MPa
D. Motor: 22 kW, 4‑pole
E. Quantity: 1 unit

10. Cyclone Dust Collector (Primary Dust Removal)

A. Type: Cyclone
B. Size: φ1400 mm × 3500 mm
C. Efficiency: >80%

11. Baghouse Dust Collector (Secondary Dust Removal)

11.1 Baghouse
A. Type: High‑pressure pulse‑jet
B. Size: 10000 mm × 2800 mm × 7300 mm
C. Filter Area: 606 bags, 750 m²
D. Efficiency: 99.5%
E. Dust Removal Capacity:

• Inlet: 3×10⁴ mg/m³

• Outlet: 100 mg/m³

11.2 Air Compressor
A. Type: Screw, air‑cooled
B. Airflow: 5 m³/min
C. Pressure: 0.8 MPa
D. Motor: 30 kW, 4‑pole
E. Quantity: 1 unit

11.3 Air Tank
A. Volume: 1.0 m³
B. Pressure: 0.7 MPa
C. Quantity: 2 units

11.4 Humidifier: 11 kW

11.5 Induced Draft Fan
A. Type: Low‑noise
B. Airflow: 37100–68250 m³/h
C. Pressure: 3567–2400 Pa
D. Motor: 132 kW
E. Quantity: 1 unit

11.6 Chimney: Height 7.5 m

12. Fully Enclosed Control Cabin

A. Size: 5000 mm × 2800 mm × 2200 mm
B. Equipped with heating and cooling air conditioner

13. Computer and Automatic Control System

13.1 Automatic Control Console
A. Type: Piano‑type, fully enclosed
B. Operating Temperature: 5–35°C
C. Humidity: 20–70%
D. Modes: Manual, semi‑automatic, fully automatic
E. Main Functions:

1. Input mix recipes

2. Automatic adjustment and precise weighing

3. Real‑time sensor feedback and control

4. Display of discharge, weighing, and temperature data

5. Long‑term data storage (up to 5 years)

6. Color display with dynamic plant simulation

13.2 Electrical Wiring
A. All power cables use VV cables
B. Covers all connections between control room and plant

13.3 Printer Functions
A. Prints mixing date, time, product temperature, actual mix proportions
B. Can display and print daily production data
C. Operating Temperature: 5–35°C
D. Humidity: 20–70%

14. Asphalt Supply System

14.1 Asphalt Heating Tanks
A. Type: Horizontal cylindrical, heated by thermal oil
B. High‑temperature Tanks: 50 t × 2 (one equipped with two agitators)
C. Thermal Oil Heater: 600,000 kcal, diesel‑fired

14.2 Asphalt Pump
A. Type: Screw pump with insulation
B. Flow Rate: 25 m³/h
C. Motor: 7.5 kW

14.3 Asphalt Pipelines
3″ and 4″ insulated pipelines with necessary valves

15. Finished Product Storage Silo

A. Capacity: 100 t
B. Type: Bottom‑mounted

16. Painting

A. Standard plant color: Grey; dust system: Silver white
B. Other colors available upon request

Items to Be Supplied by User

1. Transformer and cables from transformer to control room

2. Lubricants, grease, and thermal oil

3. Sand, stone, cement for foundation construction

4. Power supply: Three‑phase four‑wire system (special requirements must be stated in contract)

5. Lightning rod

Main External Components Suppliers

1. Control System: Schneider

2. Drying System Burner: Furuidar

3. Screening System Mesh: Beijing Hongxing

4. Weighing System / Hot Bin / Main Tower:

   • Pneumatic Components: Shanghai Xinyi

   • Air Compressor: Kaishan

   • Sensors: Ruima

5. Gearboxes and Bearings:

   • Gearbox: Guomao

   • Bearings: Timken

6. Baghouse Dust Collector Bags: Hebei Huanke

7. Asphalt Heating and Thermal Oil System:

   • Asphalt Tanks: Shandong Wucheng Luhong

   • Asphalt Pump and Plug Valve: Zhejiang Qingtian Shanggui

Special Tools Supplied with Equipment

1. Double‑end ring spanner set (8 pcs) – 1 set

2. Double‑end open spanner set (8 pcs) – 1 set

3. Adjustable wrench 36×300 mm – 1

4. Adjustable wrench 55×450 mm – 1

5. Wire pliers 200 mm – 1

6. Pipe wrench 45×350 mm – 1

7. Flat file 250‑II – 1

8. Flat screwdriver 200×8 mm – 1

9. Phillips screwdriver 200×8 mm – 1

10. Electrician screwdriver 100×5 mm – 1

11. Machinist hammer 0.5 kg – 1

12. Octagonal hammer 8.2 kg – 1

13. High‑pressure grease gun – 1

14. Oil can 1 kg – 1

Note: Due to continuous technical upgrades, all configurations are subject to the actual equipment delivered.