KJJ12 Mining Explosion proof Intrinsic Safety Industrial Swi
KJJ12 mining intrinsic safety switch is a brand new broadband communication device in coal mines, which fully complies with the industrial Ethernet standard
Product Overview
KJJ12 mining intrinsic safety switch provides transmission channels for equipment with Ethernet RJ45 communication interface, Ethernet optical communication interface or RS485 communication interface. This switch is a brand new broadband communication device for coal mine underground, fully compliant with industrial Ethernet standards, providing the ability of 10/100/1000Mbps fast Ethernet, and can be remotely managed through the network, easily achieving remote configuration and port traffic restriction settings.
Advanced Industrial Safety
It has coal mine safety certification and intrinsic safety certification, and also complies with IEC60079-11 international certification, suitable for environments with gas, coal dust explosion hazards, and cooling water splashing hazards.
Easy disassembly and relocation
It can be directly installed in the underground environment of coal mines without the need for an additional explosion-proof box, making it easy to install and route. Due to the high cost of explosion-proof boxes, using this switch can save users' data communication costs.
High real-time communication efficiency
It has rich interfaces, as well as Ethernet twisted pair electrical interfaces, Ethernet fiber optic interfaces, and RS485 data interfaces, which can fully meet the communication needs of various equipment in coal mines.
Working Principle
CAM table item matching and forwarding
After receiving the data frame, the switch first searches for the corresponding relationship between MAC address and port in the CAM table. If the match is successful, forward the data frame directly to the corresponding port; If not matched, broadcast to all ports. After successful matching, update the table entry timer and reset the timer.
Dynamic addition of table items and timeout mechanism
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When forwarding for the first time, the CAM table adds the correspondence between MAC address and port, and the timer starts counting. Reset the timer when subsequent data frames pass through this port. If a table entry is not used for a long time (timeout), the CAM table automatically deletes the entry and releases resources.
Broadcast learning and table item updates
After the broadcast of unmatched data frames, the terminal MAC address is returned through another port, and the switch updates the CAM table entry to associate with the new port. The table entry timer is continuously reset to ensure that active ports are always recorded. After timeout, unused table entries are automatically cleared to avoid resource waste.
Structural Composition
Smart Mine
Smart mining equipment layer access
Mine automation
Network terminal of mine automation working face
coal mine safety
Coal mine safety monitoring and monitoring network
Integrated system
Integrated automation ring network
Project Case
Guonuo weighing equipment has been successfully applied to multiple domestic and foreign enterprises and has gained widespread recognition
Shanxi Honghaifu Mining Equipment Explosion-Proof Belt Scale Project
Based on the site conditions, an ICS-17A belt scale frame was configured, which is a four-idler double-lever type frame with high stability. The sensors are built-in and less prone to damage, effectively mitigating the impact of belt misalig
Fengning Jianyu Iron Mine ICS-17A Belt Weigher Project
The ICS-17A belt weigher adopts a four-idler double-lever scale frame, ensuring high stability and good resistance to eccentric loading.
Shanxi Honghaifu Mining Equipment Explosion-Proof Belt Weigher Project
The measurement accuracy of the explosion-proof belt weigher met production requirements, and data could be viewed remotely. Production reports facilitated statistical analysis and management.
Hubei Jingshan Chutian Barium Salt Feeder Project
The feeder's metering and feeding accuracy fully met production requirements and remained stable during prolonged continuous production.
Production Process
Guonuo Technology adopts internationally leading production processes and equipment to ensure stable and reliable quality
Triple explosion-proof certification
Through coal mine safety certification, intrinsic safety certification, and IEC60079-11 international certification, it adopts explosion-proof and intrinsic safety circuit design, and the shell is made of impact resistant materials, suitable for gas, coal dust, and cooling water splashing environments.
Integrated and convenient installation
Designed as a direct underground installation structure, eliminating external explosion-proof boxes, integrating cable trays and quick interfaces, reducing deployment costs; Modular design supports quick disassembly and relocation, improving maintenance efficiency.
Multi protocol high-speed transmission
Integrated Ethernet twisted pair electrical port, fiber optic port, and RS485 interface, supporting parallel transmission of multiple protocols; Adopting industrial grade chips and optimization algorithms to ensure real-time and low latency interaction of underground equipment data.
Intelligent self-healing and state monitoring
It has the ability of self-healing in the ring network and automatically switches to the backup link in case of a failure; Integrated self diagnostic chip and indicator light, real-time display of power, operation, and communication status, supporting rapid fault location and recovery.
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Sustainable Development Commitment
Guonuo Technology integrates the concept of sustainable development into the weighing industry, committed to balancing resource development and environmental protection
Environmental protection
- Invest 200 million yuan to build a mine water treatment system, with a water recycling utilization rate of 95%
- Adopting a closed coal transportation system to reduce dust emissions by over 80%
- Implementing the mine land reclamation plan, 1200 acres of vegetation have been restored
social responsibility
- Provide over 500 job opportunities for the surrounding communities of the mining area
- Invest in the construction of 3 Hope Primary Schools and 2 Community Medical Centers
- Annual investment of 10 million yuan for community development and poverty alleviation projects
Future goals
- Reduce carbon emissions intensity in production processes by 20% by 2030
- Invest 500 million yuan to develop low-carbon coal washing technology and clean utilization technology
- Realize 100% land reclamation and ecological restoration of mines by 2030
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