Henan Zhengzhou Mining Machinery Co., Ltd.

China Manufacturer with main products: Ball Mill, Rotary Kiln, Vertical Preheater, Cooler, Flotation Machine, Bucket Elevator, Preheater, Dust Collector

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Vertical Preheater

FOB Price: 2,000.00 - 4,000.00 USD/Set
Supply Ability: 99 Set/Sets per Month
Shipping: Qingdao,Shanghai,Tianjin
Payment Terms: L/C, D/A, D/P, T/T, Western Union
In Stock

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Specifications

Introduction:

Limestone system consists of vertical preheater, rotary kiln and cooler vertical composition, the material from the pre-heater under the feed chute at the top of the silo by the preheater into the body, while the high temperature flue gas from the rotary kiln will be introduced preheated to 800℃or more materials, so that decomposition of limestone occur pre-or partially decomposed, followed by the hydraulic putting the tail into the rotary kiln, calcination and then unloaded by rotary kiln into the cooler, the cold wind blowing through the fan cooling, the material cooled to ambient temperature +60℃cooler the following discharge. Blowing cooler air is as secondary combustion air into the kiln to participate. Burner sleeve with internal and external structure, fixed rotary kiln head hood, heated by the kiln hood air through a central tube into the burner, fuel pass into the burner tube, the gas mixing, burning fully. Our self-made multi-functional and multi-channel burner can also burn a variety of fuels, and the ratio could be adjusted each other.

Working Principle : 

The Working Principle Of Vertical preheater:  According to the place of vertical 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.


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