(2) The manual cleaning plan for cylindrical storage lacks safety measures to prevent accidents such as falling, collapsing, and suffocation during burial.

(3) Failure to implement safety measures to prevent accidents such as high-altitude falls, collapses, burial suffocation, etc.

during manual cleaning operations in cylindrical storage warehouses.

（2） Failure to implement safety measures such as preventing high-altitude falls and collapses in the manual cleaning operation of cylindrical storage tanks.

(3) The fixed combustible gas monitoring and alarm device of the carbide slag raw material cylindrical warehouse in the cement enterprise is not interlocked with the accident ventilation device
.

【 Interpretation 】 Judgment situation: (1) The ash hopper or inlet and outlet of the coal mill bag dust collector are not equipped with temperature monitoring alarm devices.

(2) The cylindrical storage of calcium carbide slag raw materials in cement enterprises is not equipped with accident ventilation devices.

【 Interpretation 】 Judgment situation: (1) There is no fixed combustible gas concentration monitoring and alarm device capable of monitoring acetylene gas concentration installed at the highest point of the cylindrical warehouse for calcium carbide slag raw materials in cement enterprises.

【 Interpretation 】 Judgment situation: (1) The manual cleaning operation of the cylindrical storage warehouse has not developed a cleaning plan.

If a building materials enterprise has one of the following situations, it should be determined as a major accident hazard: (1) if the coal mill bag dust collector or coal powder silo is not equipped with temperature and fixed carbon monoxide concentration monitoring and alarm devices, or if there is no gas fire extinguishing device installed.

（3） The cylindrical storage of calcium carbide slag raw materials in cement enterprises is not equipped with fixed combustible gas concentration monitoring and alarm devices, or the monitoring and alarm devices are not interlocked with accident ventilation devices.

(4) The coal powder silo is not equipped with a fixed carbon monoxide concentration monitoring and alarm device.

(2) The cone of the coal powder silo is not equipped with a temperature monitoring and alarm device.

(5) The coal mill bag dust collector or coal powder silo is not equipped with a gas fire extinguishing device, or the gas fire extinguishing device is not equipped with three startup methods: automatic control, manual control, and mechanical emergency operation.

In order to further clarify the specific judgment situation, facilitate the application of emergency management departments and industrial and trade enterprises at all levels, and standardize the effective implementation of the “Judgment Standards”, the meanings of key clauses in the “Judgment Standards” are explained and explained.

(3) There is no fixed carbon monoxide concentration monitoring and alarm device installed at the outlet of the coal mill bag dust collector.

Recently, in order to accurately determine and promptly eliminate major accident hazards in industrial and trade enterprises, in accordance with laws and administrative regulations such as the Safety Production Law, and in combination with typical accident lessons learned from industrial and trade enterprises in recent years, the Emergency Management Department has formulated and issued the “Judgment Standards for Major Accident Hazards in Industrial and Trade Enterprises” (Order No.

10 of the Emergency Management Department, hereinafter referred to as the “Judgment Standards”), listing 64 situations that should be determined as major accident hazards.

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