Lime cooling equipment of sleeve kiln

Abstract

The invention relates to lime cooling equipment of a sleeve kiln. The lime cooling equipment comprises a ventilation pipe and a distributor. A flow meter and a regulating valve are installed on the ventilation pipe. The ventilation pipe is inserted into a lime storage chamber at the lower part of a kiln body from the side wall of the kiln body and is connected with the distributor. The distributor is a flow guide pipe or an annular distribution pipe. The flow guide pipe is a straight pipe structure with an open upper end and an open lower end and is arranged in the center of the kiln body. The annular distribution pipe and the kiln body are concentrically arranged. Air outlets are arranged on the upper side and the lower side of the annular distribution pipe. The quantity and the size of the air outlets are determined according to the size and process requirements of the sleeve kiln. By installing the distributor at the outlet of the ventilation pipe of a cooling zone, cooling air is evenly distributed on the entire cross section of the cooling zone of the lime kiln. Since the cooling air is evenly distributed, the air is prevented from being segregated or passing through a short path, lime is fully cooled, the cooling speed is high, the lime output temperature is stable and the activity of the lime is improved.

Description

technical field [0001] The invention belongs to the technical field of building materials and chemical production equipment, and relates to lime cooling equipment, in particular to lime cooling equipment for sleeve kilns. Background technique [0002] Sleeve shaft kiln, also known as ring kiln, originated from Beckenbach Wilmannsteller Company in Germany. More than 300 sleeve shaft kilns have been put into use in the world. Practice shows that the sleeve-type shaft kiln has simple equipment, convenient operation and maintenance, good working environment, and excellent quality of calcined products. It is a new type of kiln with great development prospects. [0003] 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...

AI Technical Summary

Problems solved by technology

The disadvantage of this cooling method is that the cooling air is easy to segregate, short-circuit, and the distribution of the cooling air is uneven, which affects the cooling effect of lime and the quality of lime products.

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