Tunnel Kiln Hollow Brick Tunnel Kiln Red Brick Fired Brick Kiln
The Working Principle of Tunnel Kiln
1. Loading materials: The ceramic or brick to be fired is loaded
into the kiln at the entrance of the tunnel kiln.
2. Preheating and combustion: The combustion chamber of the kiln
ignites the fuel to provide the high temperature required for
combustion. The high temperature flue gas produced by combustion
flows along the tunnel towards the kiln head under the action of
the chimney at the front end of the tunnel kiln or the induced
draft fan, and gradually preheats the products entering the kiln.
3. Heat exchange: there are usually multiple partitions in the
tunnel kiln to separate the kiln chamber into different areas.
There are holes in the partition, so that the flue gas from the
kiln through the kiln chamber next to the heating material for heat
exchange, improve the efficiency of heat utilization.
4. Sintering and firing: With the increase of temperature, the
material gradually reaches the temperature of sintering and firing.
5. Cooling and unloading: When the material is finished firing, the
combustion of the kiln will gradually weaken, and the cooling air
will enter the kiln. Cold air passes through the kiln chamber to
gradually cool the fired ceramic or brick, preventing it from
cooling too fast and cracking. Finally, the cooled product is
removed from the kiln.
Application of Tunnel Kiln
Tunnel kiln is widely used in the roasting production of ceramic
products, and also has applications in the metallurgical industry
such as abrasives. Its design not only improves the production
efficiency, but also reduces the energy consumption, so that the
production cost is effectively controlled. For example, in ceramic
production enterprises, secondary roasting tunnel kilns are widely
used in the production of various types of ceramic products, and
provide strong support for the development of the ceramic industry
through scientific management and continuous innovation.
Product Advantages of Tunnel Kiln
1. With a long history and experience of high performance close
furnace design and manufacturing, the optimized design of the
temperature zone of the electric kiln can achieve the process
conditions of producing high-quality products.
2. High quality refractory insulation material design, kiln energy
saving, long life.
3. Using equal diameter resistance wire horizontal heating, furnace
temperature uniformity is excellent.
4. Silicon carbide guide rail, furnace bottom wear-resistant, long
life.
5. Electric kiln appearance beautiful style.
6. Follow the modern kiln mechatronics design concept.
7. Reliable quality assurance capability.
Tunnel Kiln Data Table
| Features: | Use natural gas (NG), liquefied gas (LPG), city gas, producer gas,
etc |
| Power: | 1x104Kcal- | 8x104Kcal |
| Type: | Single electrode | Double electrode |
| Housing: | Aluminium alloy |
| Connection: | Gas:G1/2,G3/4 |
| Air:Φ41, | It can be equipped with heat-resistant steel pipe, silicon carbide,
burner brick |
| Flame tube diameter: | Φ65,Φ76 | |
| Steel tube length | 65 | 70 | 75 | Other length as required |
| Silicon carbide length | 250 | 300 | 320 | Other length as required |
| Mounting flange: | Round, square | customizable |
