IoT Monitoring System Solution for Machine-made Sand Wastewater Treatment Equipment

Sand manufacturing plants primarily process natural stones or tailings into construction sand through crushing, screening, and shaping processes to meet the demand for sand and gravel in construction, road, and other engineering fields.

 Regardless of the process or equipment used, wastewater is inevitably generated during the sand manufacturing process, primarily from sand washing, dust removal, and cooling circulation processes. This wastewater contains a large amount of suspended sand particles and particulate pollutants. If discharged into the environment without treatment, it can cause river siltation, environmental pollution, ecological damage, and other issues. Therefore, the application of machine-made sand wastewater treatment equipment is becoming increasingly widespread.

A certain sand manufacturing plant employs industrial equipment combining "pretreatment + flocculation sedimentation + mechanical dewatering + sand filtration" to treat wastewater.

 However, without dedicated personnel to monitor the equipment, failures may go unnoticed, leading to the discharge of substandard wastewater into the environment, resulting in complaints from nearby residents and penalties from regulatory authorities. To prevent such incidents, the manufacturer aims to achieve visual monitoring and automatic alarms for the wastewater treatment equipment. WideIoT provides an efficient and reliable IoT solution.

Solution Overview:
The factory's wastewater treatment equipment is controlled by a Siemens PLC.

 By deploying a WideIoT industrial intelligent gateway in the electrical control cabinet and connecting it to the PLC via a network port, and configuring device models, collection frequencies, and alarm conditions, the gateway can collect real-time operational status, process parameters, and alarm data from the wastewater treatment equipment. This information is then transmitted to a cloud-based configuration platform via 4G networks, enabling remote monitoring, fault alarms, remote control, online management, and data analysis of the wastewater treatment equipment through mobile and computer terminals. This effectively supports wastewater treatment operations, enhances management levels and work efficiency, and ensures production safety.

Implemented Functions:

1. PLC Data Collection: The system collects operational status, working parameters, and alarm data from the wastewater treatment equipment and uploads them to the cloud-based configuration platform. It can also interface with the Environmental Protection Bureau's platform via the HJ212 protocol.
2. Configuration Display: The system displays the operational information of the wastewater treatment equipment, such as pump start/stop status, valve opening/closing, inlet/outlet flow rates, motor frequencies, and water quality. It also synchronizes and displays information on treated water volume and treatment efficiency.
3. Alarm Conditions: Multiple alarm conditions can be set to automatically trigger alarms in cases of excessive water pressure, low current, abnormal water quality, etc. Alarm notifications can be sent via WeChat, SMS, email, and platform notifications for quick review.
4. Remote Control: The gateway can issue instructions to the PLC for remote control of pumps, valves, and other operations, ensuring rapid management and control in case of abnormalities to prevent larger production accidents and economic losses.
5. Data Analysis and Decision Support: By integrating factory operational information and historical data, the system can effectively uate and analyze the work efficiency and fault trends of the wastewater treatment equipment, enabling scientific and reasonable decision-making for precise and efficient operation and maintenance.