Ash discharging and cooling system under lime kiln

Abstract

The invention discloses an ash discharging and cooling system under a lime kiln. The ash discharging and cooling system comprises a kiln body, two cooling fans, a cooling air main tube, a circular air tube and cooling air tubes, wherein a cooling area is arranged in the kiln, 2-10 ash outlets are arranged below the cooling area; the cooling air main tube is inserted into the cooling area; the ash outlets are positioned at the two sides of the cooling air main tube; two ends of the cooling air main tube are connected with the cooling fans through reducing pipes; the cooling air main tube is connected with the ash outlets; the circular air tube is arranged outside the kiln body; two ends of the circular air tube are connected with the reducing pipes at the outlets of the cooling fans; and the circular air tube is connected to the outer side of the ash outlets through the cooling air tubes. According to the ash discharging and cooling system, the cooling air tubes are arranged at the outer side of the ash outlets, due to the connection between the circular air tube and the cooling fans, a part of cooling air enters the ash outlets from the outer side, the cooling uniformity and the cooling effect for lime in the ash outlets are increased, the product quality is improved, lime transportation equipment is prevented from being burnt out due to high temperature, and the service life of the equipment is prolonged.

Description

technical field [0001] The invention belongs to the technical field of chemical production equipment, and relates to lime product cooling equipment, in particular to an ash discharge cooling system under a lime kiln. Background technique [0002] The lime kiln body is divided into a preheating zone, a calcination zone and a cooling zone. The preheating zone uses the high-temperature air after calcination to preheat the limestone material. The calcination zone uses the heat released by combustion to calcine the limestone to decompose the limestone into lime and carbon dioxide. The cooling zone uses cold air to cool the calcined lime. The cooling zone is equipped with an ash outlet and a cooling system. The cooling system includes a cooling fan and a cooling air pipeline. The cooling fan is connected to the ash outlet through the cooling air main pipe and the cooling pipeline. The cooling air enters the ash outlet through the cooling pipeline to cool the lime. . Since the co...

AI Technical Summary

Problems solved by technology

Since the cooling air inlet of the ash outlet is located on the side of the cooling air main pipe, the cooling air entering the ash outlet is unevenly distributed, so that the lime on the outside of the ash outlet, that is, on the side opposite to the cooling air inlet of the ash outlet, cannot be cooled sufficiently, and the The temperature of the lime discharged from the ash outlet is too high, which not only burns the conveyor belt and other conveying equipment, but also directly affects the quality of the lime product

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