What Is a Reverberatory Furnace?

A chamber flame furnace. The heat transfer method in the furnace is not only by the reflection of the flame, but more importantly by the radiant heat transfer of the furnace roof, furnace wall and hot gas. In terms of its heat transfer method, many furnace types (such as heating furnaces, open hearth furnaces, etc.) can be classified as reflection furnaces. Generally refers to the reflection furnace for non-ferrous metal smelting.

Reflection furnace

A chamber flame furnace. Inside the furnace

Also known as flame rever-beratory furnace. Direct heating through flame

The reflection furnace consists of the furnace base, the furnace bottom, the furnace wall, the furnace roof, the feeding port, the product discharge port,

Reflective furnaces are widely used in non-ferrous metal smelting, for drying,

Due to the high temperature of these furnaces, the high temperature of the flue gas and the high heat consumption. It is necessary to add waste gas waste heat utilization devices. However, due to the harsh environment of the industry and the large content of flue gas impurities, it is easy to cause blockage of heat exchangers and cause great difficulties in waste heat recovery.
Generally, the temperature of such kiln is as high as 1350-1400 degrees, and the flue temperature is about 1200 degrees, so a lot of heat is wasted in vain and the heat utilization rate is low. A heat exchanger can be used to recover the heat in the flue and use heated air as combustion air.

If a metal heat exchanger is used, part of the waste heat can be recovered, but if the flue temperature exceeds 800 degrees, the metal heat exchanger will be damaged by high temperatures.
For example, under normal circumstances, the kiln temperature is higher than 800 degrees and the flue temperature is lower than 800 degrees. This situation seems to be suitable for metal heat exchangers. However, if there is a power outage, a large amount of gas, or insufficient combustion air volume, etc. The flue temperature is quickly higher than 800 degrees, which makes the metal heat exchanger burn out quickly.
1. High temperature resistance and corrosion resistance, so the ceramic heat exchanger can be placed near the flue outlet and the temperature is higher, then its waste heat utilization rate is high, the heat exchange effect is good, and the energy saving rate is high. But the place where the metal heat exchanger was placed on the ceramic heat exchanger was burned out quickly.
2. In terms of service life, the ceramic heat exchanger is generally several times or dozens of times the metal heat exchanger.
3. If the heat exchanger is not used, the temperature of the combustion air is normal temperature (-10-40), but the temperature of the combustion air with high heat exchange temperature through the ceramic heat exchanger can reach 300-800 degrees, which can not only achieve the purpose of energy saving. And improve environmental benefits.
4. During the smelting process of copper, zinc, and lead, there are many impurities in the air and it is easy to block the heat exchanger. An adsorber can be added in the flue, and the adsorber can be used to adsorb impurities. The adsorber can be cleaned regularly. Does not affect production, making maintenance costs lower.