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Iron Powder Preheating and Reducing Unit

Preheating and Reducing unit is a kind of coal-based unit to preheat and reduce iron ore. After iron ore and hot flue gas recycled from the system is dried in the dryer, and then they carry out reduction reaction with coal for reduction, coal for fuel and SRV coal gas injected from the head of rotary kiln. Control the temperature of the product among 750-850 ℃ and the degree of reduction about 10%. The characteristics of the equipment are that it can make full use of high temperature flue gas, greatly improve the thermal efficiency of the equipment; Use anthracite as raw coal to reduce the past situation that the equipment depends on the condition of the coke.

  • Dryer:Φ4.0m×25m
  • Rotary Kiln:Φ4.8m×75m
  • Ball grinder:Φ2.6m×7.5m

  • Application

    The dryer is used to dry and convey the iron ore powder, the rotary kiln is used to heat and pre-reducethe iron ore powder, the combustion system in the head of rotary kiln is used to match and inject coal, air and gas, Ball mill is for preparation and conveying of coal for fuel, and dust removal system is to collect and process the exhaust gas from the dryer.

Features

Specification Parameters

Equipment Name

Specification

Capacity

Dryer

Φ4.0m×25m

Capacity：195.5~236.9t/h（Dry iron ore）

Rotary Kiln

Φ4.8m×75m

Capacity：150～230t/h（Dry iron ore）

Burning system

Φ0.87m×4.5m

Injected coal rate: 9～12t/h

Fuel Quantity: (max.)1200L/h

Jet quantity（coal gas）：30000 Nm³/h

Ball grinder

Φ2.6m×7.5m

Capacity：16t/h

Bag-type Dust Collector

LCDM2×8－555

Capacity：450000m³/h

Inlet dust content ：Normal≤20g/m³ Max.80g/m³

Inlet dust content：≤30mg/Nm³


The equipment has alreadybeenused in Smelting and reducing iron equipment in coal-based direct reduction of iron project of Shandong Molong Petroleum Machinery Co., Ltd to replace existing blast furnace ironmaking technology.

Related Solutions

  •
    Annular Gap Scrubber
    Annular Gap Scrubber:
    Φ6500/Φ5000×30950mm
    Dehydrator:
    Φ7000*18230mm
  •
    SRV Furnace
    Dimenrion of SRV furnace:
    Φ9280*17300mm
    Capacity of iron making:
    800,000 tons/a
  •
    Iron Powder Preheating and Reducing Unit
    Dryer:
    Φ4.0m×25m
    Rotary Kiln:
    Φ4.8m×75m
    Ball grinder:
    Φ2.6m×7.5m

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提交您的疑问和需求，我们将在24小时之内与您联系，请耐心等待，谢谢！

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