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Carbon dioxide stays liquid below 31°C or above 7.35 MPa. When heated above 31°C, it vaporizes and pressure changes with temperature. Using this, liquid CO2 is placed in a cracking device. The device heats up, causing the CO2 to rapidly expand and create high pressure, increasing in volume by 600-800 times. When pressure limits are reached, it bursts out, cracking the rock or ore.

This method is safer and less destructive than traditional explosives, ensuring safe mining and pre-splitting. It is applicable in mining, cement, quarrying, and other industries. Additionally, the rapid release of CO2 cools the area and, being an inert gas, prevents fire-related accidents.

● Open-pit quarry mining.

● Underground coal mining and tunneling, especially in gas mines.

● Areas and regions where the use of civilian explosives is prohibited.

● Clearing silt and blockages in cement plants and steel mills.

●  The thermal reaction occurs within a sealed tube, allowing for low-temperature cracking. The expelled CO2 inhibits explosions and is flame-retardant, preventing the ignition of flammable gases.

●  This method allows for both directional cracking and delayed control, making it ideal for special environments such as residential areas, tunnels, subways, and underground mines. It causes minimal vibration and no destructive shocks, ensuring no damage to the surrounding environment.

●  The heating device cannot be triggered by vibrations or impacts, making filling, transportation, and storage highly safe. Filling with liquid CO2 takes only 1-3 minutes, and cracking completes in just 4 milliseconds. There are no duds, eliminating the need for post-blast inspection.

●  No need for an explosives storage facility; management is simple, operations are easy to learn, and fewer personnel are required, with no need for specialist oversight.

●  The cracking capacity is adjustable to suit different environments and targets.

●  There is no dust, flying debris, or production of toxic gases during cracking, allowing workers to return to the site quickly for continuous operations.

●  In stone quarrying, this method preserves the structural integrity of the material, leading to higher yield and efficiency.

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