Parameter configuration table and picture display of Sinotruk Howo's 6x4 synchronous gravel sealer
1. Parameters of Sinotruk HOWO 8X4 synchronous gravel sealer
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project
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unit
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Participate number
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product name
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Heavy truck HOWO 8x4 synchronous chip sealer
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Vehicle model
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CLW5250TFCZ5
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Chassis model
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ZZ1257N4347E1
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Vehicle length, width and height
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mm
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10200 ×2500 ×3730
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Tyre quantity / specification
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13 / 12.00R20 steel wire tires
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engine
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China Euro Heavy Duty Truck Group Co., Ltd. D340-50 340 horsepower
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Working speed ( km/h)
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3~4
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Main configuration
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Participate number
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Asphalt tank volume
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10 (m ³ )
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Stone silo volume
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16 ( m ³)
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Asphalt pump model
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QGB950/0.8 (The maximum displacement of the pump is 950L/min )
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Hydraulic system
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Well-known domestic brands
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Control System
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Siemens CLW-36-01
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burner
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G20 automatic damper imported from Italy
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Insulation method
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Thermal oil insulation (the whole process of heating and insulation of asphalt tanks, pumps, pipes and spray bars)
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Spreading width
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4.5 (m )
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Particle size ( mm )
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3~24
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Asphalt spreading amount
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0.2~4.0kg/ ㎡
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Spraying medium
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Hot asphalt, thermally modified asphalt, diluted asphalt, emulsified asphalt, rubber modified asphalt (should meet the following two conditions: 1 Rubber modified asphalt viscosity Haake 190 ℃ 1500 ～ 2200 Pa.s ; 2 Rubber modified asphalt spray temperature 200 ～ 210 ℃ ； 3. Rubber modified asphalt spraying width 4500mm )
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2. Work pictures 
1. Touch screen control, intuitive and easy to master.
2. Exclusive use of imported Italian dual burners, the heating speed is twice as fast as those produced by other manufacturers
3. The full-power power take-off is used to achieve zero-start spraying.
4. Intelligent control of the amount of asphalt and crushed stones
5. Double-layer sprinkler pipes ensure that the spraying pressure of each nozzle is even, and the spraying is more even.
6. The combined bitumen distribution valve is controlled by an electric knob, which is reliable and simple to operate.
7. The unique domestic low-speed, large-displacement asphalt pump ensures the quality of all kinds of asphalt distribution.
8. Asphalt spraying and stone chip spreading are intelligently linked, the tank volume and silo volume are large, and the operation efficiency is high.
9. Specially designed gravel silo and double conveyor belt feeding system to ensure safe and convenient construction in bends, under bridges and in tunnels.
10. Equipped with two sets of control systems (cab, rear operating platform) to ensure the reliability and convenience of operations.
3. The full-power power take-off is used to achieve zero-start spraying.
4. Intelligent control of the amount of asphalt and crushed stones
5. Double-layer sprinkler pipes ensure that the spraying pressure of each nozzle is even, and the spraying is more even.
6. The combined bitumen distribution valve is controlled by an electric knob, which is reliable and simple to operate.
7. The unique domestic low-speed, large-displacement asphalt pump ensures the quality of all kinds of asphalt distribution.
8. Asphalt spraying and stone chip spreading are intelligently linked, the tank volume and silo volume are large, and the operation efficiency is high.
9. Specially designed gravel silo and double conveyor belt feeding system to ensure safe and convenient construction in bends, under bridges and in tunnels.
10. Equipped with two sets of control systems (cab, rear operating platform) to ensure the reliability and convenience of operations.
11. Equipped with spray rubber asphalt function.
2. Equipment composition and structural features
The synchronous gravel truck is mainly composed of an asphalt spreading system, a stone spreading system, an electrical operating system, and an auxiliary machine system.
Asphalt Spreading System The spraying system mainly consists of an asphalt tank, heating part, hydraulic part, control part and spraying part.
1. Asphalt tank: The outer wall of the tank is made of stainless steel frosted board, with insulation filler in the middle, and the inside is composed of a heating boiler and a heat-conducting oil coil. The appearance is neat and generous. The additional gas control valve set outside the tank realizes the large and small circulation of the asphalt in the pipeline and avoids the local overheating and aging of the asphalt.
2. Heating part The heating device uses imported burners and matching high-efficiency boilers. It has high combustion efficiency, good atomization effect, low fuel consumption, fast heating speed, safe and stable operation, etc. No manual monitoring is required to ensure that the asphalt in the pipeline can obtain an effective heating temperature.
3. The hydraulic part adopts imported German Rexroth components (hydraulic pump, hydraulic motor) to ensure reliable transmission performance.
4. In the control part, encoders are used to accurately detect vehicle speed and asphalt pump speed to ensure spreading accuracy. The radar, encoder and main circuit switch components are all imported components. After setting the amount of spraying, the PLC automatically calculates the vehicle speed and pump speed, which realizes the automatic control of spraying and can recommend a reasonable speed for the driver.
5. Spraying part The opening and closing of each nozzle is controlled by a gas valve individually. The special pipeline design ensures uniform pressure and good spraying effect.
Stone spreading system
The stone spreading system consists of a silo, a gate control mechanism and a spreader.
The silo is equipped with an internal shadow hidden center-mounted top turning shaft, and the through shaft is used to ensure the stable lifting of the silo; the material door is controlled by 16 channels, and the angle screw angle controller is used to make the material door reach a certain opening. The opening angle of the material door can be set on the angle controller, which is very convenient and accurate. Effectively adjust the spreading uniformity and change the uneven distribution of traditional stones; the adjustment range of the distributor and the blanking board is large, and it is suitable for stones of different specifications (S3～S24mm).
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