Cement kiln tube body cooling automatic control system

Abstract

Provided is a cement kiln tube body cooling automatic control system. A track is paved on one side of a cement kiln, a transmission device is installed on a small car frame where a fan is arranged, and the transmission device is mainly used for driving the fan to move freely and parallelly on the track by driving wheels. A kiln body infrared scanner system communicates with a computer control system which reads kiln body temperature alarm signals and over-temperature positions in the kiln body infrared scanner system, and through internal calculation, output signals control input quantity and cooling position of the fan so that the effect of reducing surface temperature of a kiln body can be achieved. The system effectively avoids partial overheating of the kiln body, protects fireproof tiles on the inner wall of the kiln from falling, greatly reduces maintenance amount of the kiln body, improves yield of cement clinker, simultaneously saves energy, and reduces possible dangers caused by manual operation.

Description

technical field [0001] The invention relates to a control system of a cement plant, in particular to an automatic control system for the cooling of a cement kiln cylinder. Background technique [0002] In the current dry-process cement kiln production, the cooling of the rotary kiln shell is an auxiliary means in the decomposition technology outside the kiln, that is, when the cement clinker is fired, the high-speed airflow generated by the fan is blown to the kiln shell, that is, In the burning zone, reduce the temperature at the local overheated area. The currently known kiln shell cooling device consisting of a small frame, an anti-inverting wheel, a fan, and an air duct nozzle is manually operated, and the cooling device is dragged to a designated position for cooling; there are also multiple fan covering cooling methods , but this will result in a waste of power consumption. Due to the variability of the overheated position on the surface of the cylinder, the use of m...

AI Technical Summary

Problems solved by technology

The currently known kiln shell cooling device consisting of a trolley frame, an anti-inverting wheel, a fan, and an air duct nozzle is manually operated, and the cooling device is dragged to a designated position for cooling; there are also multiple fan covering cooling methods , but this will result in waste of power consumption

Due to the variability of the overheated position on the surface of the cylinder, the use of manual cooling equipment is prone to hysteresis, that is, the position that needs to be cooled cannot be accurately located in time, and it also puts the operator in a high-temperature dangerous environment. Therefore, it will cause the kiln inner wall to be refractory. The shedding of bricks not only increases the maintenance of the kiln shell, but also reduces the quality and output of cement clinker

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