Safety measures during fault handling of coal mine safety monitoring system

1 Monitoring host failure handling security technical measures:

(1) When the monitoring host fails, the monitoring and monitoring attendant immediately informs the server maintenance personnel to switch the standby machine, and the standby machine can operate normally. The server maintenance personnel should repair the host in time and can normally switch to the host to run. If it cannot be repaired, or if there are other faults that cannot be eliminated, you must contact the manufacturer's technical personnel for processing.

(2) The operator or other personnel are not allowed to perform any operations on the server to ensure the safety of the monitoring and control system.

(3) A server cannot be restored to normal. During the operation of a single unit, special technical measures must be formulated and reported to the Monitoring and Control Center of the Safety Supervision Bureau.

(4) During the period when the server fails to operate normally, the on-duty personnel must notify each team, the working face and the attendant of the electromechanical diverticulum, use the portable tile detector and oxygen meter, and strengthen the inspection with the CO portable instrument.

(5) Inform the inspectors to inspect the roadway for intensive inspection.

(6) After the main engine is put into use after the fault is removed, the alarm can be released and the attendant can record at the same time.

2 Monitoring safety measures for monitoring faults in underground substations

(1) When monitoring the underground substation failure, the monitoring and monitoring attendant must immediately notify the captain of the shift, and the duty captain arranges the monitoring and maintenance personnel to enter the well for inspection and treatment according to the situation. At the same time, it is necessary to report to the monitoring and control center of the Safety Supervision Bureau.

(2) The monitoring worker who enters the well to deal with the fault must carry the gas portable instrument, the carbon monoxide portable instrument and the oxygen measuring instrument, and must bring the necessary tools, and monitor the worker into the well to handle the failure and strictly prohibit the separate operation. After the downhole fault is handled, report the situation to the duty officer.

(3) Before the fault is not handled properly, the staff at the location monitored by the substation correctly use the portable and optical instruments to temporarily replace the monitoring and perform real-time monitoring.

(4) The fault handling time shall not exceed 4 hours. If the fault cannot be handled underground, the substation must be replaced within 8 hours.

(5) The workers entering the well pay attention to the working environment and handle the faults while ensuring the safety of the individual.

(6) After the substation is processed and the normal monitoring is resumed, the monitoring points set by the temporary portable instrument can be cancelled, and the on-duty personnel should make a record.

3 monitoring sensor fault handling security technical measures

(1) When the CH4, CO and other sensors fail, the monitoring and monitoring attendant must immediately notify the captain of the shift, and the shift captain arranges the monitoring and maintenance personnel to enter the well for inspection and treatment according to the situation. At the same time, it is necessary to report to the monitoring and control center of the Safety Supervision Bureau. .

(2) The monitoring worker who enters the well to deal with the fault must carry the gas portable instrument, the carbon monoxide portable instrument and the oxygen measuring instrument, and must bring the necessary tools, and monitor the worker into the well to handle the failure and strictly prohibit the separate operation. When troubleshooting downhole, report the situation to the duty officer.

(3) Before the fault is not handled properly, the staff at the location monitored by the substation correctly use the portable and optical instruments to temporarily replace the monitoring and perform real-time monitoring.

(4) The sensor failure processing time should not exceed 4h. If the fault cannot be handled in the underground, the calibration sensor must be replaced within 8h.

(5) The workers entering the well pay attention to the working environment and handle the faults while ensuring the safety of the individual.

(6) The replaced fault sensor is calibrated in the laboratory, the repair is in good condition, and the record is made at the same time.

Iron Castings -- Cast Iron Automotive Parts