Mesh belt continuous brazing furnace
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because of the high temperature, high gas temperature and high heat consumption. Need to add a waste gas heat utilization device, but because the industry environment is bad, gas impurities content is large, easy to cause heat exchanger blockage, to waste heat recovery caused great difficulties.
General type of kiln temperature in the 1350-1400 degrees of high temperature, flue temperature at 1200 degrees Celsius, so there is a lot of heat is wasted, low heat utilization. Can be used in the flue heat recycling heating air as combustion air heat exchanger.
If the use of metal heat exchanger, can be part of the waste heat recovery, but if the flue temperature reached 800 degrees above, metal heat exchanger will be high temperature damage.
Such as under ordinary circumstances the kiln temperature higher than 800 degrees, and the flue temperature below 800 degrees, this seems to fit in metal heat exchanger used, but if there is electricity, gas amount is too large, combustion air volume insufficient, will make the flue temperature higher than 800 degrees, the metal heat exchanger quickly burn out.
Energy-saving ceramic heat exchanger, has overcome this difficulty, ceramic heat exchanger has the following characteristics:
1, high temperature resistant, corrosion resistant, so can the ceramic heat exchanger put in from the chimney flue near an exit, temperature is higher, then the waste heat utilization rate, good effect of heat transfer, energy saving rate is high. But the metal heat exchanger on the heat exchanger in the ceramic parts will soon be burnt out.
2, the use of life, the general situation of ceramic heat exchanger is a few times or dozens of metal heat exchanger.
3, if you do not use a heat exchanger, combustion air temperature is at room temperature (- 10-40), but through the ceramic for heat exchanger heat temperature high heating the combustion air temperature up to exchange 300-800 degrees, not only can achieve energy saving purposes, but also improve the environmental benefit.
4, lead, copper and zinc in smelting process, impurities in the air, easy blockage of the heat exchanger can in flue increase absorber, use adsorber for adsorbing the impurities, absorber can be regularly cleaned. Does not affect production, so that maintenance costs lower.