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30m³ Gas-Fired Tunnel Kiln Car Furnace with Automatic Control System

The 30m³ gas-fired tunnel kiln car furnace is designed for large-scale continuous production, offering automated control and efficient high-temperature firing.

30m³ Gas-Fired Tunnel Kiln Car Furnace with Automatic Control System

30m³ Gas-Fired Tunnel Kiln Car Furnace with Automatic Control System

Kiln design temperature:1300 ℃
Kiln operating temperature:1250 ℃
Number of kiln cars:24 units
kiln fuel:Natural gas QDW > 8600kcal/bm3
Maximum instantaneous gas consumption:130bm3/h
Number of burners:18 units, 230kW/unit

describe

30m³ gas-fired tunnel kiln car furnace features an automatic control system, ensuring precise temperature regulation, uniform heat distribution, energy efficiency, and reliable continuous operation for large-scale industrial production.

Product Features

kiln body

  • This gas-fired kiln features a high-performance composite fiber lining designed for maximum firing temperatures. The multi-layer insulation structure reduces wall thickness, minimizes heat loss, and improves energy efficiency, ensuring lower operating costs and stable thermal performance.
  • The kiln roof adopts the same advanced insulation design with 310S heat-resistant steel anchors, providing durability and structural reliability. Its flat roof structure enhances loading efficiency and promotes uniform temperature distribution, reducing thermal gradients inside the kiln.
  • An outer layer of aerogel insulation further enhances thermal efficiency by effectively blocking heat transfer, significantly outperforming traditional materials. The kiln’s steel shell with powder-coated panels ensures a robust structure, low surface temperature, and a clean, modern appearance, making it ideal for safe and energy-efficient industrial operations.

Combustion system

  • The kiln adopts a high-efficiency combustion system equipped with high-speed, temperature-regulating gas burners. The strong airflow at low temperatures enhances internal gas circulation, improves convective heat transfer, and ensures excellent temperature uniformity while reducing the risk of product cracking.
  • Burner nozzles are manufactured from 310S heat-resistant steel for superior oxidation resistance, while burner shells feature high-temperature protective coatings to extend service life. The kiln is configured with multiple combustion channels and evenly distributed burners, ensuring balanced heating and stable thermal performance throughout the chamber.
  • Each burner is equipped with a flame detection and automatic safety system. In case of flame failure, the system triggers alarms and automatically shuts off the gas supply, supporting both local and remote ignition for safe and efficient operation.
  • The optimized airflow design creates a swirling heat pattern, promoting uniform temperature distribution. A dedicated high-pressure blower supplies combustion air, with vibration-reduction and noise-control measures ensuring stable and quiet operation.
  • The gas supply system is designed with advanced safety features, including automatic overpressure protection and venting, effectively preventing risks and ensuring reliable, safe operation in industrial environments.

Smoke exhaust system

  • The kiln features an optimized smoke exhaust system that efficiently directs flue gas from the kiln car platform through branch flues into the main flue, ensuring smooth and effective exhaust flow.
  • A thermocouple installed at the exhaust fan inlet continuously monitors flue gas temperature, while an automatic cold air intake system adjusts airflow in real time. This design maintains the exhaust fan within a safe operating temperature range, enhancing system reliability, protecting key components, and ensuring stable, energy-efficient kiln operation.

Kiln door and track line

  • The kiln door system adopts a hinged structure combined with an external car storage rail line, enabling efficient loading and unloading of kiln cars. This compact design saves floor space while ensuring strong sealing performance and stable thermal efficiency during operation.
  • The kiln car platform is constructed with a welded steel frame, engineered to withstand high operating temperatures and heavy loads. Its masonry structure is carefully designed with durable materials to ensure long-term stability under continuous industrial use.
  • A zigzag sealing system is applied between the kiln car masonry and the kiln body, as well as at the kiln door interface, providing deep sealing and significantly reducing heat loss and air leakage.
  • In addition, the kiln is equipped with a manual trolley system for convenient kiln car handling, transfer, and track movement, improving operational flexibility and production efficiency in industrial kiln processes.

Alarm and accident handling functions

Serial Number

Alarm Name

Alarm Level

chain

Major Fault

minor faults

01

Gas pressure lower limit

 

Start the kiln shutdown interlock

0 2

Lower limit of air pressure

 

Start the kiln shutdown interlock

03

Other pressure limits

 

Sound alarm

04

Combustion fan major failure

 

Start the kiln shutdown interlock

05

Smoke exhaust fan malfunction

 

Start the kiln shutdown interlock

06

Comprehensive electrical faults

 

Start the kiln shutdown interlock

07

kiln temperature overheating

 

Sound alarm

08

thermocouple broken

 

Sound alarm

09

When the instrument air source pressure is low

 

Sound alarm

10

UPS failure

 

Sound alarm

11

Other faults

 

Sound alarm

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Phone:+86-13526935931
Email:gwdlthermo@gwdl.com