Installation form: main unit is built up in modular and joined together with screws.
Operation conditions concerning production capacity:
① Altitude ＜1500m
② Average moisture content in aggregates≤5%
③ Optimum working temperature: 200C～500C
④ Power supply: 380V/50HZ
⑤ Cyclic period of mixing: 45～60sec
⑥ Mixing capacity of each batch: 2500kg/batch
⑦ Aggregates: Clean and sized aggregates with moisture content <5%, dust content <1%, density ≥1.6t/m3. Needle-type or flat aggregate is not acceptable. Aggregates density, PH and hardness should conform to Material Regulations on Road Construction made by Ministry of Communication.
⑧ Mineral powder: Bag-packaged clean mineral powder or bulk fresh mineral powder, with moisture content less than 1%
⑨ Bitumen: Standard bitumen in conformity with national regulations
⑩ Fuel: Approved/ certified fuel with test report released by the testing authority. Fuel application should conform to relevant provisions specified in Burner’s Operation Introduction
Note: Production situations will change if real conditions of any abovementioned items are different with description.
Attention: Carefully read Operation Introduction prior to operating the machine.
Main technical specifications
I. Supply system of cold aggregate
·Adopt modular design concept. Match aggregate belt machine as per customer’s requirement.
·Frequency-control feeder can adjust speed according to output setting and proportioning demand.
·High-quality rubber belt is used in the cold hopper, equipped with warning unit for feeding interruption.
·Aggregate belt machine/ feed belt machine is equipped with deviation corrector.
·Each hopper is equipped with grid on the top to resist incompliant stone material.
1.Supply system of cold aggregate (Part 1)
1.1Cold aggregate bin
Structure: Three-in-one/ two-in-one
Volume of single hopper: 8.7m3
Feed width: 3.4m
Hopper quantity: 5pcs
1. 2Feed belt machine
Structure: Belt delivery/ primary distribution
Belt width: 500mm
Control: Frequency
Working capacity:60T/H
Driving power: 2.2kw
Quantity: 5sets
1. 3Aggregate belt conveyor
Structure: Belt delivery
Working capacity: 200T/H
Belt width: 800mm
Driving power: 5.5kw
Quantity: 1set
1. 4Feed belt conveyor
Structure: Belt delivery
Working capacity: 200T/H
Belt width: 800mm
Inclination degree: ＜180
Driving power: 5.5kw
Quantity: 1set
一、 Baking& heating& lifting system
·Four-wheels friction drive
·Make heat preservation outside the drum to effectively reduce heat loss
·Automatic proportioning burner
·Gravitational unload, chain-and-bucket elevator with twin steel boards
·Counterclockwise-rotation protector to prevent counterclockwise rotation upon power failure
·Lifting bucket is made of steel board via bending and welding. Enclose the complete bucket in one steel housing.
·Maintenance platform and ladder on the top, allowable dismantlement
·Access door at the bottom to regulate chain tension
2. Baking& heating& lifting system (Part 2)
2.1Drying drum
Structure: Barrel, inclined, countercurrent
Driving type: Four-wheel friction drive
Working capacity: 200T/H (moisture content of aggregate≤3% at discharge temperature of 1600C)
Drum diameter: φ2200mm
Drum length: 8500mm
Driving power: 15KW×4
Inclination degree: 4.50
Temperature measurement: Thermal resistance measurement for stone temperature
Quantity: 1set
2.2Main burner
Control: Proportional adjustment, automatically regulate air door and fuel quantity as per stone temperature change
Max.Volume: 1400kg/h
Fuel type: 0# diesel oil and gas
Fuel consumption: 6.5～7kg/t
Temperature tolerance: ±90C (when moisture content of aggregate is stable)
Fan power: 37kw
Oil pump power: 4kw
Quantity: 1set
Notes：A) Heavy oil burning system has to be selected according to customer’s requirement
B) The heavy oil has to accord with burner’s requirement for oil
2.3 Diesel tank
Structure: Horizontal barrel steel structure
Max. volume: 30M3 （1M3 diesel oil tank when using heavy oil）
Quantity: 1set
2.4 Hot-stone elevator
Structure: Steeplifting bucket gravitational unload
Working capacity: 200t/h
Driving power: 22KW
Quantity: 1set
二、 Screening& metering system
·Professional vibration-screen design, reliable screening capacity
·Twice-shutter-unloading hot aggregate bin for stable measurement of aggregate accumulation
·Bin equipped with level indicator
·With discharge pipe for incompliant material and overflow pipe for compliant material
·Metering system measures force with detector. Signal directly inputs into electronic scale and is displayed by digital. With automatic correction and dynamic compensation functions.
3. Screening& metering system (Part 3)
3.1 Vibration screen
Structure: Inclined five-stage distribution
Working capacity: 200t/h
Driving power: 15KW
3.2 Hot-aggregate bin
Structure: Full-enclosed, separated, square, steel, five-sections bin
Full volume: 26.5m3
Quantity: 1set
3.3 Stone-material metering
Structure: Four-points force measurement
Weighing capacity: 2500kg
Static metering precision: ±0.5%
Quantity: 1set
3.4 Mineral powder metering
Structure: Three-points force measurement
Weighing capacity: 250kg
Static metering precision: ±0.25%
Quantity: 1set
3.5 Bitumen metering
Structure: Three-points force measurement
Weighing capacity: 250kg
Static metering precision: ±0.25%
Quantity: 1set
Storage &supply system for fresh powder and recovered powder
Powder storage& supply system comprises powder bin, transition bin, impeller rotary valve feeder, spiral conveyor, powder elevator and etc.
4．Storage &supply system for fresh powder and recovered powder (Part 4)
4.1 Spiral conveyor
Rated output: 20t/h
Driving power: 4kw
Quantity: 2sets (including recovered powder)
4.2 Powder elevator
Rated output: 20t/h
Driving power: 5.5kw
Quantity: 2sets (including recovered powder)
4.3 Mineral powder bin
Structure: Round, vertical steel structure
Volume of fresh powder: 30m3
Feeding method: Vertical elevator (e.g. bulk-powder tanker with air pump)
Dedusting & exhaust method: Bag dust collector
Quantity: 2sets
4.4 Star-type discharge valve
Type: YJD-HX16
Working capacity: 16L/rotation
Impeller rotation speed: 24rpm
Driving power: 1.5KW
Quantity: 2sets
4.5 Mineral powder metering& spiral conveyor
Rated output: 60t/h
Driving power:5.5kw
Quantity: 1set
4.6 Mineral powder metering butterfly-type valve
Type: DN250
Nominal diameter: Φ250mm
Quantity: 3sets
三、 Mixing system
·Mixing blade and lining board made of friction-resistance material
·Synchronous twin-shaft rotary mixing system rotates materials in the mixer along mixing shaft cycle and axis. Material makes 3D rotation. The purpose is to ensure achieve best mixing effect during mixing period.
5.Mixing system (Part 5)
5.1 Mixer
Structure: Twin horizontal shafts/ rotary mixing/ side-moving door
Mixing capacity: 2500kg/batch
Driving power: 45KW×2
Cycle: 45～60sec
Quantity: 1set
四、 Dedusting system
·Square steel cabinet, impulse-air bag dedusting system
·2-stage protection for bag. First-stage protection is working temperature setting in thermo-detector. As measured temperature by sensor is higher than setting, cold-air valve in the air-in pipe opens automatically. On the second-stage protection, if temperature does not fall by cold-air valve, impulse controller will send signal to burner control cabinet to shut off power supply to burner.
6. Dedusting system (Part 6)
6.1 Cyclone dedustor (I-stage dedusting)
Structure: Twin-barrel integrated structure
Dedusting method: Centrifugal dust collection (Supply to hot-material elevator for mix)
Quantity: 1set
6.2 Star-type discharge valve
Type: YJD-HX10
Working capacity: 10L/rotation
Impeller rotation speed: 24rpm
Driving power: 1.5KW
Quantity: 2sets
6.3 Bag dedustor (II-stage dedusting)
Structure: Square steel cabinet/ heat-preservation with asbestos and colored steel board
Dedusting method: Sectional impulse back-flushing by compressed air
Filtering area: 760m2
Powder discharge: ≤100mg/n.m3
Working temperature: 80～1300C
Driving power: 5.5KW
Quantity: 1set
6.4 Main draught fan
Type: Y9-38-14D
Structure: Steel centrifugal fan
Airflow: 77,997m3/h
Full pressure: 3,410pa
Driving power: 130kw
Quantity: 1set
Note: Too large moisture content and dust content of aggregate will serious affect performance of cyclone dedustor and bag dedustor.
五、 Heat conductive oil heating system
·Connect heat conductive oil furnace, circulating oil pump, bitumen high-temperature tank, bitumen heat-preserved delivery pump and bitumen zero-position tank with heat conductive oil pipe, forming heat conductive oil heating system
·Heat conductive oil furnace equips automatic temperature-control oil burner. 0# diesel oil
·Recommend heat-preservation action for pipe after installation and debugging to avoid operator scalded, save fuel and improve heat efficiency.
7Heat conductive oil heating system (Part 7)
7.1 Heat conductive oil furnace
Furnace type: YYW-700
Burner type: RL-70
Rated heat efficiency: 700KW
Suitable fuel: 0# diesel oil
Driving power of burner: 1.5KW
Power of heat conductive oil circulating pump: 15KW
Power of heat conductive oil filling pump: 1.1KW
Quantity: 1set
7.2 Bitumen high-temperature tank
Structure: Horizontal steel barrel/ heat-preservation with asbestos
Volume:30m3
Heating method: Heat conductive oil
Quantity: 2sets
Fittings: Pipe, valve and etc.
7.3 Bitumen drainage pond
Structure: Horizontal square steel structure
Volume: 3m3
Heating method: Heat conductive oil
Quantity: 1set
Fittings: Pipe, valve and etc.
7.4 Bitumen delivery pump
Type: 3QGB80×2—46
Delivery flow rate: 25m3/h
Delivery lift: 60m
Driving power: 7.5KW
Quantity: 1set
7.5 Bitumen delivery pump
Type: 3QGB80×2—46
Delivery flow rate: 34m3/h
Delivery lift: 60m
Driving power: 11KW
Quantity: 1set
Note: Mentioned heating system does not contain heat conductive oil. (If Buyer requires it, please specify upon ordering.)
六、 Gas-circuit control system
8. Gas-circuit control system (Part 8)
8.1 Air compressor
Structure: Air-cooling
Exhaust quantity: 2.0m3/min×2 1.5m3/min×1
Working pressure: 0.7Mpa
Driving power: 15KW×2 + 11KW×1
Quantity: 3set
8.2 Solenoid valve
Pressure range: 1.5～8kgf/cm2
Voltage range: AC187V～242V
Quantity: 1set
8.3 Relief valve
Pressure range: 0.5～7kgf/cm2
Quantity: 3pcs
8.4 Cylinder
Pressure range: 0.5～7kgf/cm2
Quantity: 1set
七、 Computer-controlled system
·PLC serves as central controller.
·User-friendly control interface facilitates operation and learning. Convenient and reliable control. Computer can memorize or print all required running records and proportion datum.
·Control room is equipped with air-conditioner, providing operator comfortable working environment.
Note: High-voltage cable and transformer shall be at least 30m away from control room, avoiding interfering computer.
9. Computer-controlled system (Part 9)
9.1 Central control room
Dimension: L 6000mm, W 2300mm
Quantity: 1pc
9.2 Industrial computer
Type: Industrial control/ PLC
Control: Manual/ auto
Quantity of displayer: 1pc
Quantity of printer: 1pc
9.3 Computer control cabinet
Type: Lyre
Quantity: 1pc
Fittings: Electric components, receiver of control signals and various instruments
9.4 Heavy-current control cabinet
Type: Standing
Quantity: 1set
Fittings: Electric components, receiver of control signals and various instruments
Note: Mentioned components are standard for LB-2500 Asphalt Mixing Plant. Please specify any other optional requirements upon ordering, if any.
Optional components:
I. Product storage& delivery system
·Integrated frequency-control fairleader
·Approach limit controls running speeds and positions of cart.
·Product lifting& storage system: Lifting cart structured reasonably,
accurate positioning
1. Product storage& delivery system
1.1 Product storage bin
Structure: Rectangular single-drum bin with inclined ceiling, conical bin body with external heat conductive oil and asbestos heat-preservation layer under colored steel board
Volume: 100T
Electric-heating power for discharge door: 2KW×6
Quantity: 1set
1.2 Product delivery
Structure: Inclined rail, bucket lifting
Lifting capacity: 2500kg/batch
Running power: 45KW
Control: Frequency control
Quantity: 1set
Note: Product temperature loss 5%/12hour, product storage period fluctuates 12 hours. The best time don’t surpass 12 hours.
User can select optional components according to actual conditions. Please specify required optional component upon ordering.
LB-2500 Intermittent& Forced Asphalt Mixing Plant
Component Power Distribution Table
|
No
|
Name
|
Power
|
Qty.
|
Remark
|
|
Part 1. Cold-aggregate supply system
|
|
1.1
|
Cold material feeder
|
2.2 kw
|
5
|
|
|
1.2
|
vibrator for cold material bin
|
0.75 kw
|
2
|
|
|
1.3
|
Aggregate belt machine
|
5.5 kw
|
1
|
|
|
1.4
|
Feed belt machine
|
5.5 kw
|
1
|
|
|
Part 2. Baking& heating& lifting system
|
|
2.1
|
Drying drum
|
15kw
|
4
|
|
|
2.2
|
Main burner
|
37 kw
|
1
|
|
|
2.3
|
Oil pump motor of burner
|
4 kw
|
1
|
|
|
2.4
|
Hot-material elevator
|
22kw
|
1
|
|
|
Part 3. Screening& metering system
|
|
3.1
|
Vibration screen
|
15 kw
|
1
|
|
|
Part 4. Storage& supply system for recovered powder and fresh powder
|
|
4.1
|
Spiral feeder
|
4 kw
|
2
|
|
|
4.2
|
Powder elevator
|
5.5kw
|
2
|
|
|
4.3
|
Star-type discharge valve
|
1.5 kw
|
2
|
|
|
4.4
|
Mineral powder metering spiral conveyor
|
5.5 kw
|
1
|
|
|
4.5
|
vibrator for powder silo
|
0.55 kw
|
1
|
|
|
4.6
|
vibrator for top of silo
|
0.15 kw
|
1
|
|
|
4.7
|
vibrator for powder transition bin
|
0.55 kw
|
1
|
|
|
Part 5. Mixing system
|
|
5.1
|
Mixter
|
45 kw
|
2
|
|
|
Part 6. Dedusting system
|
|
6.1
|
Bag dedustor
|
5.5 kw
|
1
|
|
|
6.2
|
Star-type discharge valve
|
1.5kw
|
2
|
|
|
6.3
|
Main draught fan
|
130 kw
|
1
|
|
|
Part 7. Heat conductive oil heating system
|
|
7.1
|
Boiler burner
|
1.5kw
|
1
|
|
|
7.2
|
Heat conductive oil circulating pump
|
15 kw
|
1
|
|
|
7.3
|
Heat conductive oil filling pump
|
1.1 kw
|
1
|
|
|
7.4
|
Bitumen delivery pump
|
7.5 kw
|
1
|
|
|
7.5
|
Bitumen delivery pump
|
11kw
|
1
|
|
|
Part 8. Gas circuit control system
|
|
8.1
|
Air compressor
|
41kw
|
2+1
|
15KW×2+11KW
|
|
Part 9. Computer-controlled system
|
|
9.1
|
Central control room
|
3kw
|
1
|
|
|
Total power: 498.85 kw
|
|
Optional components
|
|
I. Product storage& delivery system
|
|
1.1
|
Product bin door heater
|
2 kw
|
4
|
|
|
Total 506.85kw
|
LB-2500 Intermittent& Forced Asphalt Mixing Plant
Spare Parts List
|
No
|
Name
|
Application
|
Qty
|
|
1
|
Bearing
|
Feed belt machine/ spiral conveyor
|
1pc
|
|
2
|
Bearing
|
Aggregate/ supply belt conveyor
|
1pc
|
|
3
|
Bearing
|
Screw shaft of mineral powder elevator
|
1pc
|
|
4
|
Bearing
|
Line shaft of mineral powder elevator
|
1pc
|
|
5
|
Bearing
|
Screw shaft of hot-material elevator
|
1pc
|
|
6
|
Elevator slatted-chain
|
Hot-stone elevator
|
2m
|
|
7
|
Elevator anchor chain
|
Mineral powder elevator
|
2m
|
|
8
|
Lifting bucket
|
Hot-stone elevator
|
3pcs
|
|
9
|
Lifting bucket
|
Mineral powder elevator
|
3pcs
|
|
10
|
Electromagnetic
diverter valve
|
Pneumatic control box
|
2pcs
|
|
11
|
Impulse sheet
|
Bag dedustor
|
2sheets
|
|
12
|
Seal ring
|
Pneumatic system
|
2sets
|
|
13
|
Seal ring
|
Pneumatic system
|
2sets
|
|
14
|
Seal ring
|
Pneumatic system
|
2sets
|
|
15
|
Air tube
|
Pneumatic system
|
10m
|
|
16
|
Air-tube joint
|
Pneumatic system
|
2pcs
|
|
17
|
Control button
|
Electric control cabinet
|
2pcs
|
|
18
|
Platinum thermal resistance
|
Temperature detector
|
1pc
|
|
19
|
V-belt
|
Vibration screen
|
3pcs
|
|
20
|
Blade
|
Mixing tank
|
4sheets
|
|
21
|
Paddle arm
|
Mixing tank
|
2pcs
|
LB-2500 Intermittent& Forced Asphalt Mixing Plant
Attached Tools List
|
No.
|
Name
|
Type
|
Qty.
|
Unit
|
Remark
|
|
1
|
Hammer
|
2pounds
|
1
|
Pc
|
|
|
2
|
Pliers
|
|
1
|
Pc
|
|
|
3
|
Internal circlip pliers
|
|
1
|
Pc
|
|
|
4
|
External circlip pliers
|
|
1
|
Pc
|
|
|
5
|
Spanner wrench
|
12”
|
1
|
Pc
|
|
|
6
|
Spanner wrench
|
10”
|
1
|
Pc
|
|
|
7
|
Screwdriver
|
Straight
|
1
|
Pc
|
|
|
8
|
Screwdriver
|
Cross
|
1
|
Pc
|
|
|
9
|
Tubing pliers
|
|
1
|
Pc
|
|
|
10
|
Internal hexagon spanner
|
|
1
|
Set
|
|
|
11
|
Ring spanner
|
|
1
|
Set
|
|
|
12
|
Prize
|
|
2
|
Pc
|
|
LB-2500 Intermittent& Forced Asphalt Mixture Stirrer
Component breakdown
|
No
|
Name
|
Place
|
Brand
|
|
1
|
Inverter
|
Drying drum
|
EBICO
|
|
2
|
Inverter
|
Heat conductive oil furnace
|
RELLO
|
|
3
|
Weighing sensor
|
Weight system
|
GDC
|
|
4
|
Electronic unit
|
Heavy-current control cabinet
|
ABB and others
|
|
5
|
Industrial control
|
Computer control system
|
DELL OR LINGHUA
|
|
6
|
PLC
|
Computer control system
|
SIEMENS OR TAIDA
|
|
7
|
Transducer
|
Cold feed machine
|
TAIAN
|
|
8
|
Air compressor
|
Gas circuit system
|
FUSHENG
|
|
9
|
Cylinder
|
Pneumatic system
|
AirTAC
|
|
10
|
Solenoid valve
|
Pneumatic system
|
AirTAC
|
|
11
|
Level indicator
|
Hot aggregate bin
|
SENSORLEVEL
|
|
12
|
Bearing
|
Drying drum
|
TIMKEN
|
|
13
|
Bearing
|
Hot aggregate elevator
|
TIMKEN
|
|
14
|
Bearing
|
Mixing tank
|
TIMKEN
|
|
15
|
Electric motor
Reducer
|
Cold feed machine
|
GUOMAO OR QUANNENG
|
|
16
|
Electric motor
Reducer
|
1#aggregate conveyor
|
GUOMAO OR QUANNENG
|
|
17
|
Electric motor
Reducer
|
2#feed delivery machine
|
GUOMAO OR QUANNENG
|
|
18
|
Electric motor
Reducer
|
Drying drum
|
GUOMAO OR QUANNENG
|
|
19
|
Electric motor
Reducer
|
Hot-aggregate elevator
|
GUOMAO OR QUANNENG
|
|
20
|
Electric motor
Reducer
|
Mineral powder elevator
|
GUOMAO OR QUANNENG
|
|
21
|
Electric motor
Reducer
|
Mixing tank
|
GUOMAO OR QUANNENG
|
|
22
|
Electric motor
Reducer
|
Product storage bin
|
GUOMAO OR QUANNENG
|
|
23
|
Bag filter
|
Bag dedustor
|
NOMEX
|
Performance index of heavy oil used by burner is national standard
|
Sampling detection of fuel according to GB/T 4756
|
fuel standards in home market
|
|
No.
|
Voluntary standards
|
Control point
|
180CST
|
|
1
|
GB/T 261
|
Flashing point ≥
|
66℃
|
|
2
|
GB/T 3536
|
Flashing point ≤
|
/
|
|
3
|
GB/T 6533
|
Deposit matter of water ≤
|
0.50%(V/V)
|
|
4
|
GB/T 265 GB/T 11137
|
Dynamic viscosity≥40℃
|
/
|
|
5
|
GB/T 265 GB/T 11137
|
Dynamic viscosity≤50℃
|
180mm2/S
|
|
6
|
GB/T 265 GB/T 11137
|
Dynamic viscosity≥100℃
|
/
|
|
7
|
GB/T 265 GB/T 11137
|
Dynamic viscosity≤100℃
|
/
|
|
8
|
GB/T 0160
|
Carbon Remained of braising ≤10%
|
0.15%mm
|
|
9
|
GB/T 508
|
Ash content≤
|
0.10%mm
|
|
10
|
GB/T 380GB/T11140
|
Sulfur content ≤
|
1.00%mm
|
|
11
|
GB/T 5096
|
Corrosion-grade of sheet copper ≤
|
50℃ 3h
|
|
12
|
GB/T 1884GB/T1885
|
Density ≥15℃
|
/
|
|
13
|
GB/T 1884GB/T1886
|
Density ≤15℃
|
991kg/ m3
|
|
14
|
GB/T 3535
|
Pour point ≤
|
24℃
|
|
15
|
|
Acid content
|
不含
|
Note:
1. If the fuel used doesnot meet the standard, our company won't
take the consequence caused by it.
2. Please choose 180 CST@50℃.