The preheater for lime production plays an important role in lime production line. It can preheater the limestone and reduce the waste of hot air. In actual production, there are many factors that affect the thermal efficiency of the preheater for lime production.

1 The effects of preheater separation efficiency on heat transfer efficiency

The separation efficiency has a significant effect on the heat transfer efficiency of the preheater. The research shows that the separation efficiency of the preheater for lime productionhas a linear relationship with the heat transfer efficiency.

2 The effects of all levels of cyclone separation efficiency on heat transfer efficiency

For the multi-stage preheater, it is different that the effects of all cyclone separation efficiency on heat transfer efficiency. In general, it can get better effectiveness improving the efficiency of the separation efficiency of the upper stage cyclone than the lower stage cyclone.

3 The effects of solid-gas ratio on heat transfer efficiency

With the solid-gas ratio increasing, on the one hand, the heat transfer between gas and solid increases, on the other hand, and the temperature of material increases from the preheater for lime production to the kiln, increasing heating load, so there is an optimum solid-gas ratio. In the actual production process, the solid-gas ratio of the pre- decomposition kiln is generally about 1.0, so it is beneficial to improve the thermal efficiency. In general, as far as possible to reduce the cooling of equipment, strict sealing plugging, reducing heat consumption, which are conducive to improve the solid-gas ratio, thereby improves the thermal efficiency.

4 The effects cyclone series on heat transfer efficiency

In general, the more the cyclone series, the higher the thermal efficiency. Under the same conditions, the heat efficiency of the two stage cyclone can be increased by about 26%. But with the increase of the cyclone series, the increase amplitude of the thermal efficiency is gradually reduced, the resistance of the system is gradually increased, on the contrary, the heat efficiency is reduced. On the consideration of economic efficiency, the cyclone series should not be more than six.

It is that get more knowledge about the factors affecting thermal efficiency preheater for lime production can help you improve the lime production efficiency. ZK is professional in mining machine production and provides the lime kiln preheater and magnesium kiln preheater. Please contact us to get the latest quotation.