Several key points of liquid O2 rock blasting system O2 rock blasting system
The principle of liquid O2 rock blasting system can be clearly summarized into the following key points:
1.Material composition: Liquid O2 rock blasting system materials are mainly composed of liquid oxygen and solid combustible absorbents. These absorbents are usually porous substances, such as coke, wood, straw, cotton, etc., which can absorb liquid oxygen.
2. Preparation process: When preparing liquid oxygen explosives, combustibles that can absorb liquid oxygen (such as carbon black, paper pulp, sawdust, etc.) are wrapped into cylinders and immersed in liquid oxygen before use, so that the pores of the combustibles are filled with liquid oxygen.
3. Detonation mechanism: When detonating, electric sparks or detonators are usually used to trigger the explosion. Liquid oxygen evaporates easily, causing the absorbent to oxidize in an instant to generate a large amount of carbon dioxide, water vapor and other gases.
4. Explosion principle: The explosion principle is based on the evaporation and oxidation reaction of liquid oxygen. When liquid oxygen evaporates rapidly, it undergoes a violent chemical reaction with the absorbent, producing a large amount of gas and heat. These gases expand rapidly at high temperatures to form a high-pressure shock wave, which triggers an explosion.
5. Features and advantages: Liquid oxygen blasting has the characteristics of great power and good blasting effect. Its explosive force is greater than that of TNT and other nitrate explosives. It is highly safe because liquid oxygen is not flammable or explosive, and the alarm can be automatically lifted after 15 minutes without explosion. It is easy to operate, just inject liquid oxygen into the explosive and then detonate it.
6. Application fields: Liquid oxygen blasting technology is widely used in construction, geological exploration, mining and other fields for rock removal, hole opening, circuit breaking, shoveling and consolidation.
7. Precautions: Although liquid oxygen blasting technology has high safety, it is still necessary to strictly abide by the operating procedures during operation to ensure safety. Because both liquid oxygen blasting and liquid carbon dioxide blasting involve the use of dangerous goods. In summary, the principle of liquid oxygen blasting is to use the evaporation and oxidation reaction of liquid oxygen to generate high-pressure gas and heat, thereby triggering an explosion. This technology has the characteristics of great power, good blasting effect, high safety and easy operation, and is widely used in many fields.
