Prevention of alkali burns and emergency treatment

Alumina company adopts alkali method to produce alumina. The process medium has the characteristics of high alkali concentration, high temperature, etc. In the wet work position, when there is a defect in the equipment and process, and a runaway occurs, the process media may directly When the human body comes into contact, if the labor insurance is worn out, it will cause more harm to the human body.

Alkali solution is highly corrosive. Once it touches the naked part of the body, it will cause burns, especially if it is splashed inside the eyes.

The Causes of Caustic Scald Burning in Chapter 1

( 1 ) Most of the causes of alkali burn accidents are entering the job site. Labor insurance products are not completely worn and are not standardized.

1.1 . The protective spectacles were not worn during the on-site inspection, and the machine was sealed with water or materials containing alkali.

1.2 . When cleaning the trench, the labor insurance is not properly worn. Rain trousers, rain boots, or trousers are not put on the rain boots. Alkali is poured into the shoes to burn the feet.

1.3 . No protective glasses were worn when sampling and discharging. Alkali splashed into the eyes or contacted with the face or neck. Without rubber gloves, alkali sprayed and burned the hands.

1.4 . Workers are not wearing protective equipment when disassembling pipes or tank manhole bolts, or the staff is working on the flange. Excessive internal material will spatter and injure people.

( 2 ) When performing maintenance or cleaning operations, accidental contact between personnel and lye is not strictly implemented due to safety measures, such as:

2.1 When the maintenance of pump equipment or pipelines, the lye has not been released or the import and export valve is not strict enough to start the permit work.

2.2 When cleaning various types of tanks, the materials are not released or the feed pipes are not completely partitioned (blind plates or dismantled imported shorting elbows).

( 3 ) The on-site safety hazards are not eliminated in time, such as:

3.1 . There are alkali leaks in the pipelines of the pipelines and there are people passing under them.

3.2 . Warning and protection are not done in hazardous areas. Non-work related personnel are inadvertently entered.

3.3 . The trench cover is not secure, has a gap or missing, and the staff is easy to step into the trench.

( 4 ) Other aspects

4.1 . There is a sense of fortunes, and labor protection products are removed without leaving the danger zone.

4.2 . Insufficient lighting or light on site caused staff to stray into areas with alkali hazards.

4.3 Problems with the quality of labor protection products such as raincoats, rain boots, etc.

4.4 . The production control is irrational. The tank liquid containing the alkali material is too high to cause a trough, and a large amount of lye leaks.

Chapter II Emergency Treatment after Caustic Scald Burns

( 1 ) Persons who are burned by alkaline fluids should first be self-rescued. If the injury is lighter, they should be evacuated from the dangerous area at the fastest speed. If the person with severe injuries is unable to evacuate on their own initiative, they should use the mobile phone, walkie-talkie or other communication methods or loudly. Call for help in such ways as shouting.

( 2 ) Assist rescue personnel to enter the site first of all to ensure that individual personal protective equipment is fully worn, and observe the site environment, determine the appropriate rescue circuit to prevent injury.

( 3 ) Emergency disposal methods:

3.1 Immediately flush the burned surface with plenty of water. The time should not be less than 30 minutes. Do not apply any ointment or red syrup to fresh wounds. Blisters should not be handled by themselves to prevent infection.

3.2 If the eye is scalded, do not rub your eyes. Rinse immediately with running water, or wash with other bottles. The eyelids must be opened and the time must not be less than 30 minutes. If there is no flushing equipment at the site, the head can be buried in a clean water basin, open the eyelids, and rotate the eyeballs to wash.

3.3 If the burn area is large, immediately remove the wounded person's clothes. If the clothes are tight, use scissors to carefully cut the clothes.

( 4 ) While doing the above processing, the team members should also notify the leader of the first time, and contact the vehicle according to the injury to send the injured to a professional hospital for examination or treatment. <

The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.