Belt middle sampling machine
Belt middle sampling machine is widely used in many industries such as power, steel, metallurgy, coking, chemical, building materials, etc. It is mainly used for sampling materials such as coal, mineral products, coke and other materials tra
Product Overview
The middle sampling machine of the belt is installed in the middle of the belt conveyor, arranged at a certain section of the material conveyor belt, and is used as a sampling device for mechanically and automatically collecting samples of continuously transported bulk material flow. It samples the cross-section of the material flow by scraping the sampler.
Sampling mechanism
The middle sampling machine of the belt adopts dynamic scraping technology to automatically complete cross-sectional sampling when the material flow passes through, ensuring the representativeness of the sample. Its design avoids the randomness of manual operation, significantly improves sampling efficiency and data accuracy, and is suitable for high-intensity continuous operation scenarios.
Industry adaptation
This device, through modular design, can flexibly adapt to the material characteristics of different industries such as power, metallurgy, and chemical engineering. For example, a closed sampling structure can be configured to address the dust prone characteristics of coal powder; For the hardness of ores, wear-resistant material samplers can be selected to achieve "one machine for multiple uses".
Intelligent potential
The middle sampling machine of the belt supports integration with the Internet of Things system, and can upload real-time sampling data to the central control platform for remote monitoring and quality traceability. Combined with AI algorithms, the sampling frequency can be dynamically adjusted to further optimize the material quality control process.
Working Principle
Timed full section sampling
The sampling head strictly rotates once according to the time interval set by the PLC, accurately cutting into the material flow flowing down from the head of the belt conveyor. This design can obtain a complete cross-sectional sample of the material at once, ensuring that the representativeness of the sample is not affected by fluctuations in material flow rate.
Precise separation
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The collected samples enter the primary belt feeder directly through the chute and are evenly fed into the crusher. The crushing process can effectively retain the original moisture while processing the material particle size to the required range, ensuring the accuracy of the analysis basis. Subsequently, the material is proportionally divided by a divider to achieve precise separation of the sample.
Collect closed-loop data
The final sample after reduction is automatically collected in a waterproof and dustproof sealed container for inspection. The large amount of excess material generated in the system is returned to the main material flow in a complete and pollution-free manner through return equipment such as bucket elevators, forming a clean and efficient closed-loop system with no loss or dust throughout the process.
Structural Composition
Project Case
Guonuo weighing equipment has been successfully applied to multiple domestic and foreign enterprises and has gained widespread recognition
Production Process
Guonuo Technology adopts internationally leading production processes and equipment to ensure stable and reliable quality
Soft contact design
Through the soft contact design between the scraper type sampling head and the conveyor belt, combined with the dynamic matching of the rotating arc surface and the material flow curvature, non-destructive full section scraping is achieved. This technology utilizes elastic materials or adjustable angle structures to ensure sampling integrity while avoiding wear or scratches on the surface of the belt.
Adaptive control
Adopting a dual redundant detection mechanism (such as infrared sensing+mechanical limit), real-time monitoring of the sampling head position and material flow status. When no material or abnormality is detected, the sampling will be automatically paused and an alarm will be triggered. At the same time, the sampling period will be dynamically adjusted through the PLC to ensure that each sampling is effective and avoid empty sampling or invalid operations.
Compensation technique
The sampling head uses multi-stage cutting and dynamic compensation algorithms to automatically adjust the scraping speed and angle when the material flow fluctuates, ensuring that the cross-sectional material is uniformly cut. Combining gravity balance design to reduce sampling bias caused by flow rate changes and improve sample representativeness.
Anti sticking material process
Integrating low-temperature crushing and surface treatment technology, wet coal is crushed to the target particle size through controllable impact force, while using hydrophobic coatings or high-frequency vibration devices to prevent material adhesion. Combined with spiral conveying and airflow assistance, it achieves smooth conveying and uniform separation of wet and viscous materials, avoiding material blockage problems.
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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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