Types of Enamel Furnace
Release time:
2026-04-23 15:24
Source:
(Continued from previous article)
Currently, enamel furnaces can be basically divided into three types:
2.1 Box furnaces
Products enter and exit through a single doorway, manually using tools. The size of the furnace chamber is determined by the size of the products and the desired output. For high-output applications, multiple products can be placed inside, but ease of operation must be considered. For daily consumer goods, the larger chamber area is 3.2m wide and 1.8m-2m deep. Typical dimensions are 2.5m wide and 1.5m deep. Box-type furnaces used for producing chemical reaction vessels can fire up to 10,000L of products or even larger.
2.2 Ordinary mechanical continuous operation furnaces
Based on the shape of the firing line, straight-line furnaces are called tunnel furnaces, and U-shaped furnaces are called horseshoe furnaces. There are two types of mechanical operation: one is a suspended firing furnace with the conveyor at the top, where the products are suspended and moved; the other is a furnace with the conveyor at the bottom, using a support frame to carry the products upwards. This type of furnace was gradually developed in China during the 1960s through technological innovation. The firing chamber is relatively small, generally 0.6-0.8m wide and 0.6-0.8m high. Most products are placed in a single layer, hence the common name "single-layer firing furnace." The width can accommodate multiple products depending on their size.
Due to structural reasons, the high-temperature zone of the furnace is generally around 16m long, depending on the flame length. The production efficiency of the horseshoe-shaped furnace is approximately twice that of a standard-sized box furnace for the same type of product. This is, of course, also related to product variety, personnel skills, and management level. Using this type of furnace reduces the operational requirements and labor intensity, while improving product quality.
(To be continued)
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