Customization: | Available |
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The Inner Width of Kiln: | 2-4m |
The Inner Height of Kiln: | Less 0.9m |
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The modern tunnel kiln firing machine mainly is used in sanitary ware plants producing and firing especially for big toilet, basin and others ceramic products. Its length can be from 60-120m, width can be 2m-4m, and capacity can be 300,000-1,200,000 pcs.
Since the tunnel kiln is a long equipment and the product is installed in the kiln car on the track, the foundation is required to have a high bearing capacity. In particular, the soil must be uniform in the length scope of the kiln because the tunnel kiln is not allowed to have unevenness subsidence and deformation, otherwise it will seriously affect the normal operation of the kiln car and the service life of the kiln.
Smoke exhaust section | |||||
location | Thickness(mm) | Structure(from inside to outside) | |||
From section 1 to section 12 | Kiln roof | 138 | 13mm | 25mm | 100mm |
Pansy mullite guide | Polypropylene hollow sheet | Aluminium silicate fiber blanket | |||
Kiln wall | 445 | 230mm | 115mm | 100mm | |
Light weight fireclay brick | light fire-clay insulating brick | rock wool |
Preheating section and firing section | |||||||
Location | Thickness(mm) | Structure(from inside to outside) | |||||
From section 13 to section 18 |
Kiln roof | 400 | 260mm | 40mm | 100mm | ||
JM23 light weight mullite | High purity fiber blanket | Aluminium silicate fiber blanket | |||||
kiln wall | 575 | 230mm | 115mm | 180mm | 50mm | ||
JM23 light weight mullite | light weight fireclay brick | Aluminium silicate fiber blanket | alumina silicate fiber felt | ||||
From section 19 to section 24 | kiln roof | 400 | 260mm | 40mm | 100mm | ||
JM26 light weight mullite weight mullite | High purity fiber blanket | Aluminium silicate fibre blanket | |||||
Kiln wall | 575 | 230mm | 115mm | 60mm | 120mm | 50 mm | |
JM26 light weight mullite | light weight fireclay brick | High purity fiber blanket | Alumina silicate fiber blanket | Alumina silicate fiber felt | |||
From section 25 to section 37 | Kiln roof | 420 | 280mm | 40mm | 100mm | ||
JM28 light weight mullite | High purity fiber blanket | alumina silicate fiber felt | |||||
Kiln wall | 575 | 230mm | 115mm | 60mm | 120mm | 50 mm | |
JM26 light weight mullite | High aluminum poly light ball | High aluminium fibre blanket | Aluminium silicate fibre blanket | alumina silicate fiber felt |
Rapid cooling zone | |||||||
Location | Thickness(mm) | Structure(from inside to outside) | |||||
From section 38 to section 42 | kiln roof | 380 | 260mm | 20mm | 100mm | ||
JM26 light weight mullite | Standard fibre blanket | Aluminium silicate fibre blanket | |||||
kiln wall | 575 | 230mm | 115mm | 60mm | 120mm | 50mm | |
JM26 light weight mullite | light weight fireclay brick | High purity fiber blanket | Aluminium silicate fibre blanket | Aluminum silicate fiber |
Indirect heat-extraction section | ||||||
Location | Thickness(mm) | Structure(from inside to outside) | ||||
From section 43 to section 50 | Kiln roof | 330 | 200mm | 40mm | ||
LG-1.0 High alumina poly light ball brick | Aluminium silicate fibre blanket | |||||
Kiln wall | 445 | 230mm | 115mm | 50mm | 50mm | |
LG-0.8 High alumina poly light ball brick | light weight fireclay brick | Aluminium silicate fibre blanket | alumina silicate fiber felt |
Direct cooling section | |||||
Location | Thickness(MM) | Structure(from inside to outside) | |||
From section 51 to section 61 | Kiln roof | 190 | 150mm | 40mm | |
LG-1.0 High alumina poly light ball brick |
Aluminium silicate fibre blanket | ||||
kiln wall | 445 | 230mm | 115mm | 100mm | |
Light weight fireclay brick | Light weight fireclay brick | Rock wool | |||
62-63 Section(2m/section) | A3 Empty box steel structure |
Item | Name | Unit | Technical data | Remark |
1 | The kinds | Applicable for hi-grade sanitary ware | One time firing | |
2 | Production capacity | Per year | 300000-1.2millions pcs per year | |
3 | Kiln length | m | 60-120m | |
The inner width of kiln | m | 2.0-3.5m | Useful width:3.5m | |
The height of kiln | m | ≤0.9 | ||
4 | Workday | Days | 330 | |
5 | Pass rate | % | ≥95 | |
6 | Firing cycle | h | 12~18 | Can be adjusted |
7 | Size of kiln car | mm | 2460×1560, 3360×1650 | W× L |
8 | Applied loading size of kiln car | mm | 2500×1500×900, 3200×1600 | L×W×H |
9 | Quantity of kiln car | set | 85-145 | |
10 | Shed board | mm | 500mm | |
11 | Loading quantity of kiln car | PCS/CAR | Average 23 | Loading mixture |
12 | Firing temperature | ºC | 1180~1250 | Be adjusted by production's requirement |
14 | Firing atmosphere | oxidizing flame | ||
15 | Fuel | Natural gas | About 8500Kcal/Nm3 | |
16 | Quantity of firing burner | Pcs | 76-128 | Brand: Germany Krom |
17 | Control group for temperature | Group | 8-22 | Includes one for quick cooling |
18 | Temperature difference | ºC | ≤±5 | keeping temperature in firing section |
19 | Unit consume | Kcal/Kg | ≤1150 | |
21 | Operation for kiln car | completely automatic enter and out | ||
22 | Control mean for temperature | PLC | automatic control | firing in proportion |