Underground Equipment for Smart Mines: Key Design Features of Industrial Computer for ATEX Explosion-Proof Certification
In the wave of smart mine construction, the intelligent upgrading of underground equipment has become a core driving force for enhancing production efficiency and ensuring safe operations. However, the complex underground environment, with explosive mixtures such as gas and coal dust, imposes stringent requirements on the explosion-proof performance of equipment. As the "brain" of underground equipment, an industrial computer's passage of ATEX explosion-proof certification is not only a necessary condition for compliance but also a key to ensuring safe mine production and achieving intelligent transformation. This article will delve into the core requirements of ATEX explosion-proof certification, explore the key design features of industrial computer in underground equipment, and provide customers with practical solutions.
ATEX (ATmosphères EXplosibles) is an EU regulation concerning explosive gas and dust environments, aimed at ensuring that equipment used in potentially explosive environments does not trigger explosions or fires. For smart mines, ATEX certification serves as a "safety passport" for underground equipment to enter the European market and is a widely recognized explosion-proof standard in the global mining industry. Equipment that has passed ATEX certification can prove that it strictly adheres to explosion-proof safety requirements during design, manufacturing, and testing, effectively reducing risks in underground operations.
ATEX certification applies to all equipment and protective systems used in explosive environments, including electrical equipment (such as motors, switches, sensors) and non-electrical equipment (such as mechanical equipment, valves, pumps). Based on the environment in which the equipment is used (gas or dust) and the type of explosion-proof zone (Zone 0, 1, 2 or Zone 20, 21, 22), ATEX certification classifies equipment into different categories and groups. For example, Zone 0/20 indicates a perpetual presence of an explosive gas or dust environment, imposing the most stringent explosion-proof performance requirements on the equipment.
ATEX certification involves multiple rigorous tests to ensure the safety of equipment in explosive environments:
Electrical Safety Testing: Preventing short circuits, electrical sparks, etc., in the equipment to avoid igniting explosive mixtures.
Temperature Testing: Ensuring that the surface temperature of the equipment does not exceed the specified temperature class (e.g., T4 indicates that the surface temperature of the equipment does not exceed 135°C) to prevent high temperatures from triggering explosions.
Electromagnetic Compatibility (EMC) Testing: Verifying the stable operation capability of the equipment under electromagnetic interference environments to avoid equipment failures or malfunctions caused by electromagnetic interference.
Environmental Adaptability Testing: Including waterproof, dustproof, corrosion-resistant, etc., tests to ensure the long-term stable operation of the equipment in harsh underground environments.
The explosion-proof structural design of an industrial computer is the core of ATEX certification. By adopting explosion-proof technologies such as flameproof and intrinsic safety, the ignition sources inside the equipment, such as electrical sparks and high temperatures, are isolated from the external explosive environment. For example, the flameproof design ensures that even if an explosion occurs inside the equipment, it will not ignite the external environment by strengthening the strength and sealing of the equipment enclosure; the intrinsic safety design ensures that electrical sparks or high temperatures sufficient to ignite explosive mixtures are not generated under any circumstances by limiting the energy inside the equipment.
The electromagnetic interference environment underground is complex, with electromagnetic radiation generated by high-frequency electrosurgical knives, wireless communication equipment, etc., potentially invading the industrial computer and causing data distortion or equipment failures. Therefore, electromagnetic compatibility (EMC) design is crucial. By optimizing PCB layout, increasing shielding design, adopting filtering circuits, etc., the sensitivity of the equipment to electromagnetic interference is reduced, ensuring stable operation in complex electromagnetic environments. For example, connecting common-mode inductors in series and TVS diodes in parallel in signal transmission lines can effectively suppress voltage spikes and protect the equipment from electromagnetic pulse damage.
The high temperature, high humidity, and dusty environment underground pose severe challenges to the reliability of industrial computers. By adopting industrial-grade components, strengthening heat dissipation design, and improving protection levels, the environmental adaptability of the equipment is enhanced. For example, selecting industrial-grade CPUs with a wide temperature range ensures stable operation at extreme temperatures ranging from -40°C to 85°C; adopting heat sinks, fans, or liquid cooling technology effectively reduces the internal temperature of the equipment; the enclosure is made of high-strength aluminum alloy material with anti-corrosion treatment on the surface, and the protection level reaches IP65 or above to prevent short circuits caused by dust and moisture intrusion.
The core of smart mines is intelligence. As the "brain" of underground equipment, an industrial computer needs to integrate intelligent functions such as data acquisition, protocol conversion, edge computing, and remote monitoring to achieve autonomous perception, decision-making, and execution of the equipment. For example, by integrating edge computing capabilities, the industrial computer can perform real-time processing and analysis of sensor data locally, promptly detect equipment failures or safety hazards, and upload warning information to the management platform through wireless communication modules for remote monitoring and predictive maintenance.
Among numerous industrial computers, USR-EG628 stands out as the ideal choice for underground equipment in smart mines due to its exceptional explosion-proof performance, powerful intelligent functions, and flexible scalability.
USR-EG628 adopts a flameproof design with an enclosure made of high-strength aluminum alloy material and anti-corrosion treatment on the surface. The protection level reaches IP65 or above, effectively withstanding the harsh underground environment of high temperature, high humidity, and dust. Meanwhile, the equipment has passed ATEX certification, complying with EU explosion-proof standards and ensuring safe operation in explosive environments.
USR-EG628 is equipped with an industrial-grade RK3562J chip featuring a 4-core 64-bit Cortex-A53 architecture and built-in 1 TOPS AI computing power, supporting edge AI tasks such as image recognition and voice judgment. The device integrates functions such as edge computing, PLC programming, local configuration, and remote monitoring, enabling real-time data acquisition, processing, and analysis. It supports over a hundred industrial protocols and is compatible with mainstream cloud platforms (such as USR Cloud, Alibaba Cloud, Huawei Cloud, etc.), meeting the diverse needs of underground equipment in smart mines.
USR-EG628 adopts a modular structural design, allowing flexible splicing of the main control and IO expansion modules and supporting various input and output combinations such as digital, analog, serial port, and Ethernet. The device comes with a rich set of interfaces (RS485/232, CAN, LAN, USB, HDMI, SIM card slot, etc.), enabling quick connection to various sensors, instruments, and actuators for efficient linkage. Meanwhile, the device supports multiple communication methods such as 4G/5G/Wi-Fi/Ethernet, supports primary and backup network switching, and integrates network management capabilities such as VPN, firewall, routing, and security isolation to ensure the stability and security of data transmission.
USR-EG628 adopts an industrial-grade design with three-level surge protection, three-level electrostatic protection, and a system watchdog mechanism, enabling continuous and stable operation under complex working conditions such as lightning strikes, power outages, interference, and high temperatures. The device supports remote deployment, parameter configuration, firmware upgrades, and centralized operational and maintenance management, achieving an efficient management mode of "controlling the overall situation with one computer/phone" and significantly reducing the operational and maintenance costs of underground equipment.
The construction of smart mines cannot be achieved without safe and reliable underground equipment. As the "brain" of underground equipment, an industrial computer's passage of ATEX explosion-proof certification is not only a necessary condition for compliance but also a key to ensuring safe mine production and achieving intelligent transformation. USR-EG628 provides an ideal solution for underground equipment in smart mines with its exceptional explosion-proof performance, powerful intelligent functions, and flexible scalability. If you are looking for an industrial computer that complies with ATEX explosion-proof standards and possesses powerful intelligent functions, USR-EG628 will be your best choice. Submit an inquiry now to embark on a safe journey in smart mines!
