Application Of Steel Fireproof Door in Daily Life

At a high voltage of 10000 volts, the carbon tetraradon vapor is not conductive. However, it should be noted that this fire extinguisher can not be used underground. When the flame comes into contact with carbon tetrachloride, it will produce a large amount of grave gas. If there is water vapor, it can generate and toxic phosgene, which is harmful to people. Carbon dioxide fire extinguisher is to put liquid carbon dioxide in a steel container. Its advantages are non-conductive, non deterioration, low toxicity, no damage to things, and can put out all kinds of solid and oil fires. Carbon dioxide can also enter the steel fire door where people can't reach. It has better effect on extinguishing the fire in ventilated places, but it is also a breathing gas, so you should be particularly careful when using it underground. The foam extinguishing train is a large volume foam extinguisher mounted on a small car. Its characteristic is that it can produce 100 litres of thick foam every minute, with a range of up to 18 meters, and the injection time can last for 15 minutes. It is suitable for underground. The air foam fire extinguisher uses 120 air pressure air to agitate the water of the foaming agent, and produces a large number of small bubbles. These small bubbles make the combustion substance and air separate, and play a role.

Steel fireproof door has the advantages of no harm to people, low conductivity and low cost. How to dig the fire source to put out the fire? The excavation fire source is generally carried out without the threat of gas and coal dust explosion. The fire source is in the roadway falling place or the coal seam at the roof of the roadway. The fire range is small, the fire source is easy to extinguish, and the excavation fire source is simple to extinguish the fire, but this work should be undertaken by the mine militarized rescue team. Before excavating the fire source, first spray with pressure water. After the fire is weakened, take out the coal and shed with hand pick and rake, and then completely extinguish the residual fire with water and transport the coal and burned pit logs out of the wellhead. When excavating the fire source, pay attention to the following points: 1. Check the gas condition at any time. When it is found that the gas reaches 1, LiLang wind will dilute it; If it cannot be diluted, all personnel shall be evacuated. 2. A large amount of water shall be supplied and the fire shall be stopped until there is no open fire on the surface of coal and support. 3 the open fire inside the floating coal shall be excavated and extinguished at the same time. It is not allowed to dig directly when the fire is burning. 4. The pit wood used for repairing the roadway shall be supported after being soaked with water, and the dry pit wood support shall not be used. 5 when there is no open fire and the temperature of the roadway drops below 25 ° C, this work is over.

How to connect sand and rock powder to extinguish the fire. Directly cover the burning object with sand or rock powder to isolate the burning object from the air and put out the fire. Sand and rock powder are non-conductive bodies, which are relatively used to extinguish fires such as electrical equipment and electricity. They have more advantages in extinguishing oil fires. Sand or rock powder can be directly sprinkled on the fire source or distributed with compressed air. Do not use sand to extinguish the fire of running electrical equipment, because sand may damage electrical equipment. VII. What is the business separation fire extinguishing method? The isolated fire extinguishing method is to use various closed walls to seal the fire area. When the oxygen in the closed area is consumed and the carbon dioxide content is greatly increased, the combustion will be extinguished by itself. The oxygen in the enclosure is gradually reduced. When the oxygen content is above 12, if the combustible gas reaches the explosion concentration, there is an explosion risk in the closed area. Therefore, when the fire area is closed, a steel fire door shall be used to make a temporary seal to isolate the air flow, and then a temporary seal wall shall be built outside the temporary seal. If there is a risk of gas and coal dust explosion, a protective wall shall be stacked with sand bags before the construction of the seal wall, so that the seal wall can be built under its cover.