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Vertical Preheater / Metallurgy Calcination Equipment Durable For Active Lime Processing Plant
Vertical Preheater Introduction:
The vertical preheater is a vertical preheating device that preheat calcined material, it’s developed on the basis of import and absorb advance technology from abroad and combine with dolomite and limestone calcination features, with characteristics such as rational structure, high rate of heat exchange, high level of automatic. It main used to preheat raw material with poor thermal stability (such as limestone, dolomite and so on). The vertical preheater is used with rotary kiln, make the high temperature air from kiln tail fully utilize, play a role in saving energy and reducing consumption, it’s a energy saving and environment - friendly product.
Vertical Preheater Working Principle:
The Working Principle Of preheater: According to the place of
Preheater in rotary kiln system, and negative pressure working
principle of Preheater. Heat emission is heat convective, the
material and air is convection movement. When the raw materials
feeding into the preheater, under the negative pressure condition,
to prevent cold air into the preheater, the inlet of raw materials
must take effective seal. This is to ensure the effective use of
heat and material preheating effect. The standard of preheating
quality in the preheater, is the feeding room's temperature which
is in the bottom of preheater. Kiln temperature is: Detected by
thermocouple in the side wall of feeding room, including the flame
radiation and air temperature. It reflects the firing temperature
when feed into kiln, but also the degree of feedback the final
warm-up temperature of the material. To Preheater, Truly reflects
the effective temperature of the material is outlet temperature of
the Preheater top. Temperature control on this point is more
important than the end of the rotary kiln temperature control.
Within preheater, materials after preheating and pre-decomposition,
pushing out from Preheater to Rotary kiln by hydraulic plunger
device.
Technical Parameters:
| Model | No. of push rod | Body height(m) | Capacity(t/d) | Feeding size(mm) |
| YRQ-04 | 4 | 4 | 200 | 10～50 |
| YRQ-06 | 6 | 4 | 300 | 10～50 |
| YRQ-08 | 8 | 4.4 | 400 | 10～50 |
| YRQ-12 | 12 | 4.4 | 600 | 10～50 |
