How to deal with the large amount of smoke generated by laser cutting machine during cutting?

As an important equipment in modern industrial manufacturing, laser cutting machine plays an important role in metal processing, automobile manufacturing, aerospace and other fields with its high precision and high efficiency. However, the smoke problem generated during laser cutting has always been a problem that troubles operators. Smoke not only affects the cleanliness of the working environment, but also may pose a threat to the health of operators. Therefore, effectively dealing with the smoke generated by laser cutting is of great significance to ensure the safety of the working environment and the health of operators.

The reason why the laser cutting machine generates smoke during cutting mainly comes from the process of interaction between laser and material. During the laser cutting process, a high-power density laser beam is irradiated on the workpiece, causing the irradiated material to melt and vaporize rapidly. At the same time, a high-speed airflow coaxial with the beam blows away the molten material, thereby achieving cutting. In this process, the metal material is quickly heated to the ignition temperature under the irradiation of the laser beam, and a combustion reaction occurs with oxygen, releasing a large amount of heat to form small holes. These steam and molten materials are carried away by the auxiliary airflow, floating in the factory workshop, forming smoke.

There are currently many treatment methods in the industry for the smoke problem generated by laser cutting. The following are some common laser cutting smoke treatment solutions:

1. Dry dust removal method

Dry dust removal method is one of the commonly used laser cutting smoke treatment methods. This method effectively removes harmful substances in the smoke by adding a set of laser cutting dust collection and purification dust removal equipment, such as laser smoke purifier. Laser smoke purifier uses advanced technologies such as high-voltage electric field, activated carbon adsorption, photocatalyst decomposition, etc., which can effectively remove harmful substances in the smoke and reduce them to the national standard range. At the same time, this equipment has the advantages of good treatment effect, stable operation and convenient maintenance.

2. Wet dust removal method

The wet dust removal method is to place the cutting process on the water surface to form a water bed cutting platform, and use the power of water flow to absorb dust and purify it. However, this method is relatively rare in actual application, because wet dust removal may have a certain impact on cutting quality and equipment.

3. Exhaust system

The exhaust system is also one of the effective means to deal with laser cutting smoke. Through local exhaust or comprehensive ventilation, the air containing smoke is discharged from the workshop or recycled after purification. Local exhaust is usually aimed at the fixed position of the operator, and exhaust facilities are used to exhaust harmful substances from near the source. Comprehensive ventilation includes natural ventilation and mechanical ventilation, which is applicable to the entire workshop. By rationally designing the exhaust system, the smoke concentration in the workshop can be significantly reduced.

4. Photocatalytic technology

Photocatalytic technology is a new type of smoke treatment technology. It uses semiconductors and air as catalysts and light as energy to degrade organic matter into carbon dioxide, water and other non-toxic and harmless components. This technology has the advantages of high treatment efficiency, environmental protection and energy saving, and is suitable for treating complex smoke components generated during laser cutting.

5. Smoke detection and treatment device

In order to monitor and treat the smoke generated during laser cutting in real time, a smoke detection and treatment device can be installed. This device can detect the smoke concentration at the working position of the cutting head in real time, and automatically trigger the smoke treatment device for purification when smoke is detected. At the same time, it can also send out an alarm signal to remind the operator to take timely measures.

In addition, when dealing with laser cutting smoke, the following points should be noted:

First, the appropriate smoke treatment plan should be selected according to the actual situation. Different laser cutting machines, different cutting materials and different working environments may require different smoke treatment solutions.

Secondly, smoke treatment equipment should be regularly maintained and serviced to ensure the normal operation of the equipment and efficient treatment effect.

Finally, the training and management of operators should be strengthened to improve the safety awareness and operating skills of operators to ensure that they can correctly use and maintain smoke treatment equipment.

In summary, to deal with the smoke problem generated by laser cutting machines, it is necessary to consider a variety of factors and technical means. Through the reasonable application of dry dust removal, exhaust system, photocatalytic technology and installation of smoke detection and treatment devices, the smoke concentration and harmful gas emissions in the workshop can be effectively reduced, providing operators with a safe and healthy working environment. At the same time, it also helps to improve the cutting efficiency and workpiece quality of laser cutting machines, and contribute to the sustainable development of enterprises.