Tunnel Kiln DRI Production Line Solution

This tunnel kiln DRI production line solution is designed for direct reduced iron and sponge iron production based on the customer’s raw material condition, target capacity, fuel type and project requirements.

The system can be configured for iron ore concentrate, pellets, metallurgical materials and suitable iron-bearing raw materials. According to the project scale and process route, the production line can include raw material preparation, mixing and briquetting or pelletizing, reduction furnace system, tunnel kiln cars, loading and unloading system, cooling and product handling, dust collection, electrical control and automatic monitoring systems.

With proven experience in 70,000 t/y and 100,000 t/y DRI projects, as well as large-scale tunnel kiln applications, this solution is suitable for investors and steel-related industrial clients who need a complete technical route, equipment configuration and project implementation support for DRI production.

Additional information

Project Type

Tunnel Kiln DRI Production Line

Application

Direct Reduced Iron / Sponge Iron Production

Capacity Range

Customized according to project requirement

Furnace Type

Gas-fired or fuel-customized tunnel kiln system

Service Scope

Process design, equipment supply, installation guidance and commissioning support

Scope of Supply

  • Raw Material Preparation System: Raw material receiving, drying, crushing, screening, batching and conveying systems according to the selected process route.
  • Mixing & Forming System: Mixing, briquetting, pelletizing or charging preparation equipment based on raw material characteristics and product requirements.
  • Tunnel Kiln Reduction System: Tunnel kiln body, kiln cars, reaction containers or reduction units, heating zone, reduction zone, cooling zone and related furnace structures.
  • Loading & Unloading System: Automatic or semi-automatic loading, unloading, cleaning and material handling equipment for continuous production.
  • Fuel & Combustion System: Gas, natural gas, producer gas or project-specific fuel supply and combustion control system.
  • Dust Collection & Environmental System: Dust removal, exhaust gas handling and environmental protection equipment according to local project requirements.
  • Electrical Control System: PLC control, process monitoring, temperature control, alarm system and remote monitoring options.
  • Product Handling System: DRI cooling, discharge, screening, storage and conveying equipment.
  • Auxiliary Equipment: Kiln accessories, refractory materials, spare parts, inspection tools and project-specific supporting equipment.

Inspection, Testing & Technical Review

  • Raw Material Evaluation: Review of iron content, gangue composition, reducibility, moisture, particle size and other key material conditions.
  • Laboratory or Pilot Test Support: Small-scale and pilot-scale testing can be considered before final process design to reduce project investment risk.
  • Process Route Review: Technical evaluation of reduction temperature, fuel type, tunnel kiln length, production capacity and product quality target.
  • Equipment Configuration Review: Matching of raw material preparation, tunnel kiln system, kiln cars, loading and unloading equipment, control system and environmental equipment.
  • Project Feasibility Communication: Technical communication on site layout, local fuel availability, raw material supply, investment plan and expected product market.
  • Pre-Delivery Technical Check: Equipment list confirmation, drawing review, manufacturing inspection and shipment preparation support.

Project Support Services

  • Process Design Support: Technical route selection and process design based on raw material, fuel, capacity and product requirement.
  • Engineering Configuration: Complete equipment configuration for tunnel kiln DRI production, including furnace system, material handling, environmental control and automation.
  • Equipment Manufacturing & Supply: Supply of key tunnel kiln equipment, auxiliary systems, control system and related production line equipment.
  • Installation Guidance: Technical support for site installation, equipment alignment, furnace construction and system connection.
  • Commissioning Support: Assistance for cold commissioning, hot commissioning, trial production and process adjustment.
  • Training & Operation Support: Operator training, maintenance guidance and technical communication during project start-up and operation.
  • International Project Coordination: Support for packing, shipment, documentation and overseas project communication.

Frequently Asked Questions

Can the tunnel kiln DRI production line be customized according to our raw material?
Yes. The production line should be designed based on raw material analysis, iron content, impurity composition, reducibility, fuel condition and target product quality. Raw material testing can be arranged before final process design if required.
The capacity can be customized according to the project requirement, site layout and investment plan. Previous industrial references include large-scale DRI production lines such as 70,000 t/y and 100,000 t/y projects.
Both options can be discussed. Depending on the customer’s requirement, the scope can include process design, equipment supply, installation guidance, commissioning support and complete project coordination.

Request a Quote & Technical Matching

Please provide your contact details and project requirements below. Our team will review your request and recommend suitable equipment solutions based on your application, technical needs, and delivery destination.
Site inspection, pre-shipment checking, and project discussion can be arranged for serious buyers.

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