• ALUMINUM ASH PROCESSING SYSTEM
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  • LECA PRODUCTION LINE
  • FRACTURING PROPPANT PRODUCTION LINE
  • SOLID (HAZARDOUS) WASTE INCINERATION SYSTEM
  • PULVERIZED COAL PREPARATION PRODUCTION LINE
  • GGBS PRODUCTION LINE
  • Grinding Mills
  • Kilns & Dryers
  • Conveyors
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  • Dust Collectors
  • LECA PRODUCTION LINE

    Capacity:15,000- 600,000 (m³/a)

    Calcining temperature: 1100-1200℃

    Main equipment: plug-in rotary kiln, single cylinder cooler, vertical cooler, air cooler, roller crusher, double shaft mixer, roller granulator, bag filter, fan, rotary screen, belt conveyor

    We built our own expanded aggregate calcination experimental pilot platform, ceramsite proppant and expanded aggregated granulation platform and various experimental granulating equipment, which can realize various raw material analysis, calcination experiments, sample making, pilot production before industrial investment, so as to provide the basic industrial data for the later industrialization.

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    Introduction

    Henan Zhengzhou Mining Machinery Co.,Ltd has started the Light Expanded Clay Aggregate (LECA) equipment manufacturing since company foundation. We always trance the new technology developing on the LECA equipment manufacturing and have cooperate with the college and R&D institute to improve the equipment performance and function. Our LECA equipment have been widely used in Chinese LECA manufactures and won the good reputation from customers. We have begun the exported business since 2010 and create the good economic benefit. We adopt the energy saved technology and get the good efficiency.

    Advantages

    1. Energy-saving environment friendly

    Advanced production process and large capacity for single production line with low heat loss. The advanced bag type dust collector, which is equipped in LECA equipment, keeps exhaust gas below 30mg/Nm3.

    2. High degree of automation

    Leca production line is fitted with temperature and pressure monitoring instrumentation, operating parameters of the computer display, and is capable of using advanced computer control to achieve automatic operation of the entire system.

    3. Lost investment

    Based on the features of Light Expanded Clay Aggregate (LECA), double-cylinder insert type rotary kiln controls the preheating and calcination process. The energy-saving vertical preheater is equipped in LECA production line with advanced process, and reasonable design and high level technology.


    Technology

    1. Raw Material Process

    The main raw material is clay or slurry. Building clay (or slurry) storage shell and flyash storage yard, we get the material by loader and do the proper mixing ration. And then the material will be fed into silo.When the clay size is too big, it should be crushed by roller crusher to get small size.

    2. Mixing and Granulating

    Set up an apron feeder under the hopper. Feed the material into a double shaft mixer. Then the material fall into a double roller granulator to become 5-10mm sphere shape material. And then they are fed to an insert type rotary kiln by belt conveyor.

    3. Preheating and Burning.

    When the sphere shaper material enter into the preheating kiln by chute. The moisture will be dried and then the material will be fed into the burning kiln to become the Light Expanded Clay Aggregate (LECA) with bulk density of 500kg/m3.

    4. Cooling

    Light Expanded Clay Aggregate (LECA) outlet from the kiln will be fed into the cooler. Cooler shall adopt the single drum cooler, vertical cooler, grate cooler and etc.

    5. Fuel Combustion

    Coal, natural gas and biomass fuel are good choices as fuel.

    6. Kiln Inlet Dust Collection

    Gas from kiln inlet will be processed by air cooler machine and then sent to the bag filter for dedusting. And then it will be sent to the air.

    7. Final Product Screening and Packing.

    The Light Expanded Clay Aggregate (LECA) outlet from rotary cooler and then fed into a vibration screen (or rotary screen). They will be screened into the size of 5mm, 15mm and 25mm. The different size will be packed in different bags, which will loaded for sales.

    LECAProductionLine5.jpg


    Parameter

    No.Model(m)CapacitySlope(%)Cyclinder Revolving Speed(r/min)ReducerMotor
    Hourly capacity(m3/h)Annual output (m3/a)ModelPower(kW)
    1Preheating kilnφ1.25×182.95~3.9418000~2400041.0~5.0ZQ500YCT225-4A11
    Roasting kilnφ1.6×141.0~5.0ZQ650YCT225-4B15
    2Preheating kilnφ1.55×204.36~5.8126700~3500041.0~5.0ZQ650YCT250-4A18.5
    Roasting kilnφ1.9×161.0~5.0ZQ750YCT250-4B22
    3Preheating kilnφ1.8×225.9~7.8713610~4800041.0~5.0ZQ750YCT250-4B22
    Roasting kilnφ2.2×181.0~5.0ZQ750YCT250-4B22
    4Preheating Kilnφ2.0×247.42~9.8845400~6000041.0~5.0ZSY224YCT280-4B30
    Roasting kilnφ2.5×201.0~5.0ZSY224YCT315-4A37
    5Preheating Kilnφ3.0×20- φ2.5×129.5~17.5180400~10700041.0~5.0ZS1450YCT355-4B75
    Roasting kilnφ3.0×221.0~5.0ZS1250YCT355-4A55
    6Preheating Kilnφ3.2×20- φ2.8×1413.9~16.2100000~11500041.0~5.0ZS1450YCT355-4A55
    Roasting kilnφ3.0×221.0~5.0ZS1250YCT355-4A55

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