Large-scale Continuous Mechanical Enamel Furnace

Release time:

2026-04-24 15:35

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2.3 Large-scale Continuous Mechanical Enamel Furnace.

This type of furnace is characterized by a large firing chamber cross-section, with a height ranging from 1.7 to 2.5 meters (some are lower, some higher, depending on product size and output). The width ranges from 0.8 to 1.0 meters (referring to one passageway). The product travels in a U-shape within the furnace, with a journey distance of 30 to 50 meters from entry to exit. The product initially enters the preheating zone, then moves to the high-temperature firing zone, and finally enters the cooling zone. The product releases heat upon exiting the firing zone, which is absorbed by the products entering the preheating zone. Therefore, the furnace's thermal energy utilization is excellent. Several pairs of circulating air curtains prevent heat leakage in the low, medium, and high temperature zones. The overall furnace shape can be I-shaped, L-shaped, or U-shaped, depending on site conditions and process layout requirements.

The refractory and insulation structure of this type of furnace is mostly constructed of high-grade aluminosilicate fiber felt, which is lightweight, has low heat storage, and good insulation performance. The combustion structure mostly uses various types of metal radiant tube devices, while some adopt heavy-duty large muffle refractory material structures. The metal radiant tube combustion device must use gaseous fuel or low-sulfur light diesel oil. Refractory material structure furnaces can use heavy oil, tar, light oil, liquid, gaseous fuel, or electricity.

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