Coal pulverizer spontaneous combustion protection device

Abstract

The invention provides a coal pulverizer spontaneous combustion protection device. The coal pulverizer spontaneous combustion protection device comprises multiple coal pulverizer safety monitoring andinerting treatment devices, a control system, a carbon dioxide storage device and a signal feedback device, wherein a corresponding safety monitoring sensor is arranged on each coal pulverizer; the control system comprises a PLC system electrically connected with the sensors, an alarming controller electrically connected with the PLC system, and an execution controller and an inerting control unit which are electrically connected with the alarming controller, and signals are sent to the inerting control unit by the execution controller; the carbon dioxide storage device is controlled by the control system to provide inert carbon dioxide gas for a coal pulverizer assembly; and the signal feedback device is used for feeding the signals of the inerting control unit back to the alarming controller and for eliminating spontaneous combustion conditions of the coal pulverizers. Working states of the coal pulverizers are detected by the coal pulverizer spontaneous combustion protection devicein time, and once the coal pulverizers spontaneously combust, inert gas protection treatment is conducted, so that safety accidents caused by spontaneous combustion of the interiors of the coal pulverizers are avoided.

Description

technical field [0001] The invention relates to the technical field of coal mill safety systems, in particular to a coal mill spontaneous combustion protection device. Background technique [0002] A coal mill is a machine that breaks coal and grinds it into coal powder. It is an important auxiliary equipment for pulverized coal furnaces. There are vertical mills, high-pressure suspension roller mills, medium-speed micro-powder mills, overpressure trapezoidal mills, and Raymond mills. [0003] At present, due to the frequent occurrence of safety accidents due to coal mill fires, there are various factors for coal mill fires in operation. The most common causes of fire include overheating of the coal mill, debris in the coal mill, and coal buildup in the upper and lower mill bowl areas. [0004] When operating with coal above a certain temperature, the possibility of fire will increase. And if foreign matter collects inside the coal mill, the possibility of fire will incre...

AI Technical Summary

Problems solved by technology

However, when using vision or other senses alone to detect the fire of the coal mill, it is often due to people's misjudgment or insufficient handling that causes major accidents.

Images