Coal powder preparing explosion control integrated protection system

Abstract

The invention provides a coal powder preparing explosion control integrated protection system. The coal powder preparing explosion control integrated protection system comprises a raw coal bin, a coalmill, a coal powder separating and filtering device, a coal powder bin, a combustion furnace kiln and a coal powder preparing explosion control integrated controller. The coal mill and the coal powder separating and filtering device are connected through a coal powder conveying pipeline, a powder discharging conveying device is arranged at the bottom of the coal powder separating and filtering device, and a tail gas conveying pipeline is arranged on the combustion furnace kiln. Each of the coal powder conveying pipeline, the tail gas conveying pipeline and the powder discharging conveying device is provided with a combustible heat energy detector and a combustible heat energy adjuster. Each of a coal powder separating and filtering device feeding port, the interior of a coal powder separating and filtering device shell, the coal powder bin and a dust collector is provided with a combustible heat energy detector and an explosion suppressing gas spraying and releasing device. When combustible heat energy is detected to reach the early warning value, the corresponding combustible heat energy adjuster and / or the explosion suppressing gas spraying and releasing device are / is intelligently started through the coal powder preparing explosion control integrated controller, the combustible heat energy is suppressed so that explosion cannot be caused.

Description

technical field [0001] The invention relates to the field of coal powder preparation equipment, in particular to an explosion control integrated protection system for coal powder preparation. Background technique [0002] Coal powder is a fuel powder substance, which has the dangerous characteristics of spontaneous combustion and explosion. Coal powder preparation is the process of making raw coal (the type of coal is in the form of raw minerals) into powdered fuel powder through a grinding process. Due to the spontaneous combustion of pulverized coal, when pulverized coal is mixed with air during the pulverized coal preparation process, it can instantly form a dust deflagration form of pulverized coal flash combustion, and then a strong dust explosion occurs in the system of pulverized coal preparation equipment. [0003] At present, the explosion control measures in the pulverized coal preparation process are limited to the monitoring of the concentration of carbon monoxid...

AI Technical Summary

Problems solved by technology

[0003] At present, the explosion control measures in the pulverized coal preparation process are limited to the monitoring of the concentration of carbon monoxide gas. The working conditions make the concentration of carbon monoxide gas have a large dispersion of measurement data, which makes the measurement data and results of the detection lose credibility, resulting in failure to prevent the risk of dust explosion

Images