Linhuan Coking Plant Air Pollution Automatic Monitoring Station Project
Project Background
Linhuan Coking is located in Linhuan Industrial Park, Huaibei, Anhui, with production areas covering coking, chemical processing, raw material handling, main plant roads, pipeline corridors, and riverside green belts. These areas have different dust and fugitive emission conditions, creating a need for continuous monitoring of PM2.5, PM10, TSP, noise, and key meteorological parameters to support plant environmental management and routine inspection.
The site is a typical industrial environment with high dust levels, corrosive gases, summer heat, winter temperature changes, and frequent heavy-vehicle movement. These conditions can affect sensor surfaces, exposed metal components, electrical connections, and long-term measurement stability. In addition, periodic manual sampling makes it difficult to capture short-term changes in particulate matter and noise, so continuous online monitoring was required for more consistent environmental data.
- Project Location: Linhuan Industrial Park, Huaibei, Anhui, China
- Implementation Date: Sep 2021
- Monitoring Points: 4 monitoring stations
- Application: Industrial air pollution monitoring, plant environmental management, and fugitive emission monitoring
- Data Transmission: 4G wireless communication with outdoor LED display
On-Site Installation Process
Monitoring Point Survey & Foundation Work
Before installation, the technical team surveyed the four planned monitoring points across the plant, considering dust sources, vehicle movement, ventilation, underground pipelines, and existing cables. Monitoring positions were selected away from direct exhaust outlets while still representing the surrounding operating area. Before foundation construction, the team coordinated with plant personnel to confirm underground conditions and installed independent concrete foundations with embedded anchor bolts for each monitoring pole.
Equipment Installation & Commissioning
After the foundations were completed, engineers installed the integrated air and weather monitoring station, 3.5 m monitoring pole, outdoor control enclosure, 4G communication unit, and LED display. Outdoor cable joints were sealed and exposed connections were protected against the plant’s dusty and corrosive atmosphere. During commissioning, the team checked sensor signals, power supply, data acquisition, 4G transmission, and LED display operation, and also reviewed sensor cleaning and routine inspection requirements before handover.
Equipment Used
- Integrated Air & Weather Monitoring Station: Measures PM2.5, PM10, TSP, noise, temperature, relative humidity, atmospheric pressure, wind speed, and wind direction.
- Data Acquisition Unit: Collects and processes data from the monitoring sensors.
- 4G Wireless Communication Module: Transmits monitoring data to the environmental monitoring platform.
- 3.5 m Corrosion-Resistant Monitoring Pole: Supports the sensor assembly and outdoor monitoring equipment.
- Outdoor Protective Control Enclosure: Houses the data acquisition, communication, and power components and provides protection against dust and moisture.
- Outdoor LED Display: Displays selected monitoring data for plant personnel and on-site inspection.
- Concrete Foundation: Provides a stable base for the monitoring pole and helps withstand vibration from heavy vehicles.
Project Site:
Project Highlights
The system was configured for the operating conditions of the coking plant, with four monitoring points covering different areas of the site. The main project features include:
- Four Monitoring Locations: Monitoring points cover the main plant road, construction area, pipeline and riverside green belt, and plant boundary to collect data from different site conditions.
- Integrated Multi-Parameter Monitoring: Each station measures PM2.5, PM10, TSP, noise, temperature, relative humidity, atmospheric pressure, wind speed, and wind direction.
- Site-Specific Protection: Monitoring poles, control enclosures, cable connections, and foundations were arranged to withstand dust, moisture, corrosive gases, and vibration from heavy vehicles.
- Remote Data Transmission: 4G communication sends monitoring data to the environmental management platform, reducing the need for manual collection at each point.
- Real-Time On-Site Display: Outdoor LED screens display selected monitoring values directly at the plant, allowing staff to view current conditions without accessing the platform.
Project Results
The four monitoring stations were successfully commissioned and placed into regular operation across the Linhuan Coking plant. The system continuously measures PM2.5, PM10, TSP, noise, temperature, relative humidity, atmospheric pressure, wind speed, and wind direction, with data transmitted through 4G to the environmental monitoring platform and selected readings displayed on outdoor LED screens.
During daily operation, the stations provide continuous monitoring across the main road, construction area, pipeline and riverside green belt, and plant boundary. The equipment operates under the site’s normal dust, weather, and heavy-vehicle conditions, with routine cleaning and inspection used to maintain the exposed sensors. The continuous data also give plant personnel a more practical basis for reviewing local environmental conditions and managing fugitive dust.
Customer Feedback
After the monitoring stations were put into regular operation, the plant management team found the multi-point monitoring setup useful for routine environmental inspection. The ability to check data remotely also reduced the need for staff to visit each monitoring point for manual readings.
“The four monitoring points give us a clearer view of conditions in different parts of the plant. We can check the data remotely and use the LED display for on-site viewing, so it is much more convenient than relying only on periodic manual measurements.”
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