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　　I. Product Introduction

　　Carbon dioxide exists in liquid form below 31 degrees Celsius or at pressures above 7.35 MPa. Above 31 degrees Celsius, it begins to vaporize, and the pressure changes continuously with temperature. Utilizing this characteristic, liquid carbon dioxide is filled into the main pipe of the fracturing device. A rapid excitation heating device is used to instantly vaporize and expand the liquid carbon dioxide, generating high pressure with a volume expansion of more than 600-800 times. When the pressure reaches its ultimate strength, the high-pressure gas bursts and acts on the rock mass and ore body, achieving the purpose of expansion fracturing. This overcomes the disadvantages of previous blasting and pre-splitting methods, which involved significant destruction and high risk. It provides a reliable guarantee for the safe mining and pre-splitting of mines and rocks, and can be widely used in mining, cement, quarrying, and many other industries. Simultaneously, the rapidly released carbon dioxide gas during the fracturing process has a cooling effect, and carbon dioxide is an inert gas, completely avoiding accidents caused by open flames from blasting.

　　The second-generation carbon dioxide fracturing device is a new type of fracturing equipment independently developed by our company. It mainly consists of a filling machine, a storage tank, and a fracturing device. Compared with the first-generation carbon dioxide fracturing equipment, our product saves more manpower, material resources, and costs, and is at the leading level among domestic carbon dioxide fracturing equipment.

　　II. Product Application Range

　　Carbon dioxide fracturing devices have a very wide range of applications. The main applications currently include: 1. Mining in open-pit stone quarries; 2. Mining and tunneling in underground coal mines, especially suitable for gas coal mines; 3. Areas and regions where the use of explosives is prohibited; 4. Dredging and unclogging in cement plants and steel plants.

　　III. Product Advantages

　　Unlike traditional explosives, carbon dioxide fracturing devices do not produce shock waves, open flames, heat sources, or various toxic and harmful gases from chemical reactions. Applications have proven that carbon dioxide fracturing devices, as a physical fracturing device, have no negative effects and high safety performance.

　　1. The thermal reaction process takes place in the closed inner cavity of the pipe. Low-temperature fracturing, the ejected CO2 has an explosion suppression and flame-retardant effect, and will not ignite combustible gases;

　　2. It can be used for directional fracturing and delayed control. Especially in special environments (such as residential areas, tunnels, subways, underground, etc.), the vibration during implementation is small, there is no destructive vibration or shock wave, and there is no destructive impact on the surrounding environment;

　　3. Neither vibration nor impact can trigger the heating device, so filling, transportation, and storage are highly safe; liquid carbon dioxide injection only takes 1-3 minutes, and fracturing to completion only takes 4 milliseconds. There are no misfires during implementation, and no inspection is required;

　　4. No explosive storage is needed, management is simple, operation is easy to learn, fewer operators are required, and no professional personnel are needed for attendance;

　　5. Fracturing capacity is controllable, and the energy level can be set according to the different usage environment and object;

　　6. There is no dust or flying stones during fracturing, no toxic and harmful gases are produced, the safe distance is short, and work can be resumed quickly for continuous operation;

　　7. In stone mining, it does not damage the texture structure, resulting in higher yield and efficiency.

　　IV. Main Product Models

　　1. Carbon Dioxide Fracturing Tube

　　Model: CPD-ZLG-50/650/100/120

　　Diameter: Φ52, Φ74, Φ84, Φ90, Φ99, Φ109

　　Filling amount: Φ109 (filling amount can reach 8Kg)

　　Expansion pressure: 270MPa

　　2. Carbon Dioxide Activator

　　3. Carbon Dioxide Filling Machine

　　Filling medium: Liquid CO₂

　　Power: 3Kw

　　Voltage: AC220/380V 50Hz

　　Filling speed: 1-4KG/min

　　4. Storage Tank:

　　Filling medium: Liquid CO₂

　　Capacity: 499L