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Mixing station
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Mixing station
Integrated modular design，optimized dust-proof ensures eco-friendly standard. The whole plant is highly integrated which saves a lot of space, meanwhile the passageway for trucks is left wide for easy transportation.
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Overall structure
General description：
Integrated modular design，optimized dust-proof ensures eco-friendly standard. The whole plant is highly integrated which saves a lot of space, meanwhile the passageway for trucks is left wide for easy transportation.
Bitumen and hot oil pipes adopt quick-connection interface, which could decrease 20% installation time than normal device.
The liners in the drying drum use adjustable structure, that is much better for even material curtain, the burners are from top international brand, suitable for different fuels.
Vibrating screen is our star product, with long life span and less maintainence.
The mixing plates and liners are manufactured with nickel-chromium-molybdenum alloy material, the high strength and abrasion can fit for tough working condition.
The dust-collection system has two phases, it could minimize the dust emission.
High stability and automatic control system promise durable and continuous production.
1 Cold aggregate system
Number of hoppers could be customized, each hopper is 3.6m in width and 3.88m in height;
The aggregate feeders have frequency control, feeding efficiency is between 30-150tph;
Equipped with Material shortage alarming device;
All reducers are Siemens brands.
2 Drying and heating system
The material curtain and dust-collection parameters are optimized to reach higher heating efficiency, the international burner brand ensures stable burning work, it is inter-locked with the aggregate temperature sensor, realizing automatic adjustment;
The drying drum has a leaning angle of 3.14°, driven by Siemens reducer, the liners are designed with quick-replacement devices, the discharge tube is equipped with abrasive temperature sensor, of which the accuracy is <±3%;
3 Dust collecting system
Two phases design reduce dust emission as much as possible, the emission density is ≤50mg/Nm3, Ringerman blackness ≤Ⅰlevel;
The mixing tower has minus-pressure system, which avoids dust leakage;
The second phase is the bag house, 98% of the bags work at the same time, the collected dust would be transported to powder silo through the screw conveyor, the induced draft fan is controlled automatically, the input and output of the bag house have temperature sensors, the upper and lower chamber have pressure meters, these devices promise safe and qualified production.
4 Mixing tower
4.1 Hot aggregate elevator
Plate chain wear-resistant type,direct Siemens motor-reducer , the feeding and discharge gates are installed with abrasion steel;the elevator body is totally sealed.
4.2 Vibrating screen
High sieving efficiency and quick mesh changing design;
4 groups of springs minimize the externally transmitted vibration;
Sieving efficiency is more than 85%;
Bigger maintainence space.
4.3 hot aggregate hopper
The structure and outlook adopt the same frame structure as the mixing tower, it has two levels, increasing the usage. Continuous level sensor is equipped. Extra material and oversize material have separate tubes, each hopper has the maintainence door, sand hopper has temperature monitoring device.
4.4metering system
l Powder silos use Toledo sensors, new and waste powder adopt screw conveyor and rotary valve;
l Bitumen scale use Toledo sensor, the bitumen self-flows into the mixer;
l The aggregate scales use suspending, high-accuracy Toledo sensors, 3 gates discharging design.
l The discharging gates have several opening levels, designed to control the tail feeding to reach high accuracy.
4.5 mixing system
The mixer is driven by Siemens reducer, the bearing brand is NSK, mixing plates and liners and high abrasive materials, the life span could be up to 100000 batches;
The discharge gate is designed with emission-avoiding system, no dust or smoke during product unloading;
4.6 Pneumatic system
All international brands meet high stability and low maintainence cost.
5 Powder supplying system
Powder silo has upper and lower chamber, each for new and recycled powder.
The silo has top and bottom level sensor, anti-arching device is installed at the silo cone.
Screw conveyors are WAM brands.
Silo top has dust collector.
6 Finished product hopper
7 Bitumen and fuel supplying system
The number of bitumen tanks is according to customer demand, oil tanks have level meter and temprature meter;
Bitumen recycling pump is our patent product;
Bitumen pipes and valves have hot oil heating and rock-cotton insulation;
All tanks have maintainence platform;
8 Control system
Fully automatic operation system, Siemens PLC;
Real-time recording and data management;
Both automatic and manual control functions could be done in the control room.
Big storage space for different formulas and production records;
Different products switch easily;
Specification
| Model | LB3000 | LB4000 | LB5000 | |
| Capacity under standard condition（t/h） | 240 | 320 | 400 | |
| Cold hopper | ||||
| Quantity | Accordingly | Accordingly | Accordingly | |
| Volume （m3） | 12 | 15 | 15 | |
| Drying system | ||||
| Length and diameter（m） | 9.5/2.5 | 11/2.7 | 11.1/2.9 | |
| Power （kW） | 4×18.5 | 4×22 | 4×30 | |
| Fuel type | Diesel and hot oil, gas | |||
| Burner power（MW） | 20 | 24 | 30 | |
| Diesel tank（m3） | 10，vertical | 10，vertical | 10，vertical | |
| Heavy oil tank（m3） | 50，horizontal | 50，horizontal | 50，horizontal | |
| Dust collecting system | ||||
| Wind amount | 90000 Nm3/h | 120000 Nm3/h | 140000 Nm3/h | |
| Filter space（m2） | 889 | 1131 | 1300 | |
| Draft fan power(kW) | 160 | 200 | 220 | |
| Mixing tower | ||||
| Aggregate elevator（t/h） | 240 | 320 | 400 | |
| Screen decks | 5 | 6 | 6 | |
| Screen model | 5LZSF2050D | 6ZWF2256G | 6ZWF2460 | |
| Sieving space（m2） | 48 | 68 | 82 | |
| Hot aggregate space（t） | 80 | 100 | 120 | |
| Aggregate scale（kg） | 3500 | 4500 | 5000 | |
| Powder scale（kg） | 400 | 500 | 600 | |
| Bitumen scale（kg） | 250 | 350 | 400 | |
| Metering accuracy | Aggregate：≤±0.5%；Powder：≤±0.3%；Bitumen：≤±0.2% | |||
| Mixer（t） | 3 | 4 | 5 | |
| Power （kW） | 2×37 | 2×45 | 2×75 | |
| Max capacity（t/h） | 240 | 320 | 400 | |
| Finished product hopper（t） | 100t/2仓 | |||
| Air compressor | 3 m3/h，8kg | 3 m3/h，8kg | 5 m3/h，8kg | |
| Tower sealing | Optional | Optional | Optional | |
| Powder system | Customized | |||
| Standard Volume | 50+80m3 | 50+80m3 | 50+80m3 | |
| Bitumen supplying system | ||||
| Structure | Standard horizontal type with hot oil heating, electrical heating and vertical tanks are optional | |||
| Tank volume（m3） | 3×50 | 4×50 | 4×50 | |
| Hot oil burner（kcal/h） | 1000000 | 1000000 | 1000000 | |
| Bitumen discharge pool （m3） | 1×5 | 1×5 | 1×5 | |
| Control system | ||||
| Type | Siemens PLC + industry computer, fully automatic control | |||
| Control room | 6m container type | 6m container type | 6m container type | |
| Total power(kw) | 650 | 750 | 850 | |
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Company address
294 Anqian Road, Anshan, Liaoning, China
Stock abbreviation：Anshan
NO.：002667
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