Full-automatic water injector in shaft kiln

Abstract

The invention discloses a full-automatic spraying device in the shaft kiln in the cement manufacturing technical domain, which is characterized by the following: assembling thermo detector and sprayer on the lower conical hopper; connecting the thermo detector with main controller; connecting the sprayer with water outlet of high-pressure pump through high-pressure pipe; connecting high-pressure pump and motor belt wheel through V-belt; linking the motor and converter through operating switch to connect the power through contactor; connecting the subsidiary switch of the operating switch and power contactor with converter. The invention can avoid over-hang temperature for the kiln with slow cooling speed, which saves energy and cost effectively.

Description

technical field [0001] The invention relates to a fully automatic water spray cooling device in a vertical kiln for cement production, belonging to the technical field of vertical cement kiln production. Background technique [0002] At present, most domestic shaft kiln cement manufacturers have the problem of high temperature of the clinker leaving the kiln and slow cooling speed. Due to the existence of this problem, the strength of the clinker leaving the kiln is generally 5-10Mpa lower than that of the clinker of the rotary kiln. Free calcium oxide The content of clinker is also generally higher than that of rotary kiln clinker; too high kiln clinker temperature also seriously affects the transportation and grinding of clinker. In order to solve this problem, most manufacturers use the method of spraying water outside the kiln or adding mixed materials with high water content to cool down the clinker. Although the temperature of the clinker leaving the kiln can be reduce...

AI Technical Summary

Problems solved by technology

[0002] At present, most domestic shaft kiln cement manufacturers have the problem of high temperature of the clinker leaving the kiln and slow cooling speed. Due to the existence of this problem, the strength of the clinker leaving the kiln is generally 5-10Mpa lower than that of the clinker of the rotary kiln. Free calcium oxide The content of the clinker is generally higher than that of the rotary kiln clinker; too high temperature of the clinker out of the kiln also seriously affects the transportation and grinding of the clinker

In order to solve this problem, most manufacturers use the method of spraying water outside the kiln or adding mixed materials with high water content to cool down the clinker. Although the temperature of the clinker leaving the kiln can be reduced to a certain extent, it is too laggy and sluggish. Rapid cooling can not promote the digestion of free calcium and the improvement of strength. Excessive watering will also cause the "hydration reaction" of clinker, resulting in a decrease in strength

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