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Mixing station

1208001 (1)

1208001 (1)

  • Product Description
  •   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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