Sleeve lime kiln empty kiln drying method

Abstract

The invention relates to a sleeve lime kiln. A method for drying a sleeve lime kiln with an empty kiln, which includes introducing coal gas to the temporary burners of the sleeve lime kiln; starting the exhaust gas fan to make the negative pressure in the kiln ≥ -0.05kpa; The observation hole of the device is inserted into the ash discharge device, and the burner is facing upwards and fixed; when the temperature in the kiln rises to 50°C, control the temperature rise rate to 3°C to 5°C per hour to heat up; when the temperature rises to 280 to 300°C, start to keep warm; start kiln drying After 24 hours, open the burner drainage screw and the exhaust gas flue drainage hole, tighten the screw after the burner drains, and drain the water every 4 hours; keep warm until there is no obvious moisture at the drain, which means that the refractory in the kiln has been dried to Reasonable control range; cut off the temporary burner gas valve; turn off the exhaust fan; turn off the cooling fan after eight hours. The invention can effectively remove the moisture in the refractory material and ensure the high-temperature service performance of the refractory material.

Description

technical field [0001] The invention relates to a sleeve lime kiln, in particular to a kiln drying method for a sleeve lime kiln. Background technique [0002] As the saying goes, three points for building a kiln and seven points for baking. The importance of industrial kiln baking is self-evident. After any industrial furnace is built, its refractory lining must be baked after natural drying and curing before it can be put into production. [0003] The purpose of the sleeve lime kiln drying kiln is to remove the free water and crystal water in the lining body after the construction of the refractory material, so as to obtain the high-temperature performance of the refractory material. However, the domestic sleeve kiln baking method has always been the Italian Fukas sleeve kiln drying method, that is, the kiln body is filled with limestone and then baked, which seriously affects the moisture removal effect of the refractory inner lining and even affects High temperature p...

AI Technical Summary

Problems solved by technology

However, the domestic sleeve kiln baking method has always been the Italian Fukas sleeve kiln drying method, that is, the kiln body is filled with limestone and then baked, which seriously affects the moisture removal effect of the refractory inner lining and even affects High temperature service performance of refractories

Facts have proved that without a good oven process, cracks often appear on local refractory materials after being put into production

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