Leakage accident control of the hottest dangerous

2022-08-22
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Control of leakage accidents of hazardous chemicals

the leakage of hazardous chemicals is prone to poisoning or turn into fire and explosion accidents. Therefore, leakage treatment should be timely and appropriate to avoid major accidents

to successfully control the leakage of chemicals, it is necessary to plan in advance and have a full understanding of the chemical properties and reaction characteristics of chemicals

leakage accident control is generally divided into two parts: leakage source control and leakage disposal

precautions for leakage treatment

when entering the leakage site for treatment, the following items should be paid attention to:

personnel entering the site must be equipped with necessary personal protective equipment

if the leaked chemicals are flammable and explosive, kindling should be strictly prohibited. Extinguish any open fire and any other form of heat source and fire source to reduce the risk of fire and explosion

it is strictly forbidden to act alone in emergency treatment. There should be a guardian, and water guns and water cannons should be used to cover when necessary

approach the site from the upwind and uphill, and it is strictly forbidden to enter blindly

leakage source control

if possible, the further diffusion of chemicals can be eliminated by controlling the overflow or leakage of chemicals. This can be done through the following methods:

by closing the relevant valves, stopping the operation, or by changing the process flow, routing the auxiliary line of materials, local shutdown, cycling, load reduction operation, etc

after the container leaks, measures should be taken to repair and plug the cracks to stop the further leakage of chemicals, which is very critical to the whole emergency treatment. Whether the leakage can be blocked successfully depends on several factors: the dangerous degree close to the leakage point, the size of the leakage hole, the actual or potential pressure at the leakage point, and the characteristics of the leakage material

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disposal of leakage

after the leakage is controlled, the on-site leakage should be covered, received, diluted and treated in time, so that the leakage can be safely and reliably disposed of, so as to prevent the occurrence of secondary accidents. There are mainly the following methods to deal with the leakage on the ground:

if the chemical is liquid, it will spread everywhere when it leaks to the ground, making it difficult to collect and deal with it. For this reason, it is necessary to build embankments to block or drain to a safe place. For this reason, it is necessary to build embankments to block or drain to a safe place. In case of liquid leakage in the storage tank area, the rainwater valve shall be closed in time to prevent the material from flowing out along the open ditch

for liquid leakage, in order to reduce the evaporation rate of materials to the atmosphere, foam or other covering materials can be used to cover the leaked materials and form a covering layer on their surface to inhibit their evaporation. Or use low-temperature cooling to reduce the evaporation of leakage

in order to reduce air pollution, water guns or fire hoses are usually used to spray mist water into harmful vapor clouds to accelerate the diffusion of gas to the high altitude and make it spread in safe areas. When using this technology, a large amount of polluted water will be produced, so the sewage drainage system should be dredged. For combustibles, a large amount of water vapor or nitrogen can also be injected on site to destroy the operating steps and combustion conditions of rubber fatigue testing machine

for large liquid leakage, diaphragm pump can be used to pump the leaked materials into the container or tank car; When the leakage is small, sand, adsorption materials, neutralization materials, etc. can be used to absorb and neutralize. Or cure the leakage

transport the collected leakage to the waste treatment site for disposal. Flush the remaining small amount of materials with fire water, and the flushing water is discharged into the oily sewage system for treatment. In this way, its performance can be protected

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