Case study of poisoning accidents
(1) Poisoning accident of the main plant
1. Cause of the accident:
1). Gas pipeline leakage, not found in time;
2). Misoperation leads to gas pipeline rupture;
3). Bell valve water seal damage;
4). The overhaul furnace is not carried out in accordance with the operating procedures;
2. Preventive measures:
1). Strengthen training, improve the technical level of employees, and strictly abide by their posts;
2). Check the normal water seal in time;
3). Wear protective equipment and operate in accordance with the regulations;
(2) Poisoning in the area of the coal conveying corridor and coal storage hopper
1. Cause of the accident:
1). Poisoning occurs when a single person enters the coal storage hopper to work;
2). Accidentally fall into the coal hopper for poisoning;
3). Poisoning occurs when resting near the coal conveying channel or plant;
2. Preventive measures:
1). When entering the coal storage hopper to work, there should be a special person to supervise;
2). When entering the coal storage hopper, the gas should be purged thoroughly;
3). It is strictly forbidden to rest in or near the gas channel;
(3) Poisoning between pressurizers
1. Cause of the accident:
1). Air leakage of the sealing ring of the pressurizer;
2). The instrument pipe joint of the pressurizer falls off
3). Gas leakage when tar is discharged at the bottom of the pressurizer;
4). Gas leakage caused by overhauling the inlet and outlet doors of the pressurizer;
2. Preventive measures:
1). It is forbidden to rest between pressurizers;
2). Regular inspection. The quasi-insured equipment is normal;
3). Alarm facilities should be installed indoors and there are accident ventilation devices;
4). Safety protection measures should be taken when overhauling the pressurizer;
(1) Poisoning of purification equipment
1,
Cause of the accident:
1) Overhaul cyclone dust collector and electric trap cooler are poisoned due to unpurged or incomplete purging;
2) Poisoning caused by improper safety measures during the training of purification equipment;
3) Rest near the purification equipment, poisoning caused by gas leakage;
4) The discharge of purification equipment is too low, resulting in poisoning;
2,
precautions;
1) When entering the purification equipment, it should be purged first and supervised by a special person;
2) To overhaul and purify the equipment, apply for a work ticket and do safety measures;
3) All personnel are forbidden to rest near the equipment;
4) Wear protective equipment when working to prevent poisoning;
5) Strengthen safety education and improve the safety awareness of employees;