Application of FLIR Thermal Imager in the Exploration of Spontaneous Coal
FLIR A310f and E6 thermal imaging cameras are rugged and durable, perfect for 24/7 monitoring of coal temperature. When you store and load large amounts of coal, you need to be alert to spontaneous combustion of coal. The Dutch bulk cargo terminal handling company OBA deals with such risks every day. In order to ensure the safety of coal storage and loading and unloading docks and guarantee its investment, the company uses FLIR thermal imaging cameras to monitor coal temperature and detect potential spontaneous combustion risks in time.
OBA is one of the leading bulk cargo terminal handling companies in the ARA region of the Netherlands (Amsterdam, Rotterdam, Antwerp). The company operates two terminals in the Port of Amsterdam, responsible for the transshipment of a variety of commodities, including: coal, agricultural bulk cargo, mineral and bio-energy cargo, etc. OBA has an extensive railway and waterway network in the North Sea and the Dutch inland areas, and provides various logistics forms, including ocean-going ships, push barges, trains and trucks.
Driving along the Amsterdam terminal area to the OBA terminal, you will find amazing huge coal piles. Coal storage and processing account for about 80% of OBA's business. A large amount of coal is continuously transported from here to Germany, northeastern France, the United Kingdom and the Netherlands, day and night. For OBA, coal is a valuable cargo and needs to be carefully protected 24/7. Why should we be so vigilant? Mainly because of the spontaneous combustion of coal. The spontaneous combustion of coal is a common concern in coal storage yards. If exposed to oxygen, coal will react with it and generate heat. When the temperature rises to a certain level, the coal will ignite spontaneously.
For some coal types, it does not matter whether spontaneous combustion occurs, but when it occurs. OBA planner Dick Meijer said: “The spontaneous combustion of coal is an issue we must consider every day. In order to prevent the occurrence of spontaneous combustion, we must take appropriate measures. More specifically, we send excavators or wheel loaders to remove suspicious areas. The coal was dug out and spread out. And we used special anti-combustion equipment to compact this area and drain the oxygen out of the coal pile."
There is no doubt that for OBA, the speed of response is crucial. The spontaneous combustion of coal not only causes the loss of energy and quantity, leading to a sharp increase in operating costs, but also brings safety risks and environmental impacts.
Dick Meijer commented: "In order to minimize costs, we have been looking for a way to allow us to monitor the temperature of the coal before loading it on the barge. As a result, we found that thermal imaging is a perfect technology that can To achieve this, we have been monitoring once a week through external agencies, but in 2013, we also invested in the installation of FLIR Systems infrared cameras to ensure that all coal shipped from us is suitable for transportation Compared with other technologies we have investigated, thermal imaging cameras have a huge advantage, that is, it can monitor the temperature of the entire coal pile, not just a few points. When the coal is transported on the conveyor belt , Through thermal imaging cameras, we can not only
The surface temperature of coal is detected, and the temperature of the entire coal seam can be detected. It is precisely because of these thermal imaging cameras that we can discover problems in time and take appropriate measures immediately.
Temperature monitoring certificateCertain European countries have set additional requirements for the transportation of coal. According to a multilateral agreement between EU countries, the temperature of a ship of coal, whether it is before, during or after loading, must be below 60°C. “Therefore, every ship of coal shipped from our terminal to Germany must have an effective temperature monitoring certificate. Germany is a very important market for OBA, and thermal imaging cameras allow us to easily meet these requirements.†DickMeijer said: “We used to hire External measurement experts perform temperature detection, which is an additional cost for the end customer. Now we can measure it ourselves, not every once in a while, but 24/7 continuous monitoring. We can also provide customers Valid proof as an additional service."
Thermal imager installationThe OBA terminal is now equipped with 3 rugged FLIR A310f thermal imaging cameras. Each thermal imaging camera is installed on a tower, from here can clearly monitor several conveyor belts, the task of these conveyor belts is to load coal on the barge. In this way, coal with a higher temperature will be discovered in time. The thermal imager is installed as close to the barge as possible. OBA can observe the condition of the entire conveyor belt (the conveyor belt is 900 meters long). The temperature of the coal is under monitoring at any time before being loaded onto the barge. In this way, overheating The coal will never be loaded onto the barge.
The central control room continuously monitors the thermal imager. The video image of the thermal imager is transmitted to the central control room via IP. The operator can obtain the real-time status of coal with a special software system that can provide intuitive color codes. The green color code means that all coal has not exceeded the dangerous temperature, so there is no danger of spontaneous combustion. The yellow color code indicates that the temperature is increasing. In actual situations, when the yellow label appears, the coal temperature is usually between 40°C and 50°C. When this happened, OBA had already taken precautions, which was to dig out the coal and spread it out. The red color code means that the temperature has exceeded 55°C. At this time, the conveyor belt must be forced to stop to prevent the coal with too high temperature from being loaded onto the barge.
In this project, OBA chose FLIR A310f, a high-speed thermal imager with high sensitivity. The thermal imager is equipped with an environmentally friendly housing package, which increases the fire protection level of A310f to IP66 without affecting any functions of the thermal imager.
"We consulted with FLIR distributor Rato and conducted tests together, and finally decided to choose FLIR A310f, because the detection results provided by this thermal imager are very accurate and reliable." Dick Meijer said.
OBA chose FLIR A310f, several basic requirements played a decisive role. First of all, the thermal imaging camera must be able to provide stable temperature measurement, and be able to measure at high speed, keeping up with the speed of the conveyor belt (3 meters per second); in addition, the A310f can operate 24/7, regardless of rain, snow, or extreme heat. Or the temperature is below zero.
Dick Meijer said: "We are also loading coal at night, so temperature measurement is also needed at this time. Fortunately, thermal imaging cameras are ideal for viewing at night. We also need to consider special circumstances. For example, during snow, When snow falls on the surface of the coal pile, steam is produced. The thermal imaging camera is not disturbed by this phenomenon and provides reliable temperature measurement information as usual."
Fast on-site temperature scanIt is not only necessary to monitor the coal on the conveyor belt before loading it on the barge, but also the coal pile on the wharf at least once a week. To this end, OBA combines the traditional temperature measurement tool—temperature probe with the handheld infrared camera—FLIR E6. The biggest difference between these two technologies is that the probe can only detect the temperature of a certain point, while the thermal imaging camera can measure the temperature of a larger area.
Dick Meijer said: "When an abnormal situation occurs, our operators use a more intuitive tool-FLIR E6 portable infrared thermal imaging camera. When the control room receives the yellow label information, we go to the abnormal place and use E6. Observe the problem with your own eyes. This thermal imager is very sturdy and easy to operate even with gloves on."
Android is an open source mobile operating system based on Linux platform released by Google at the end of 2007, and then improved for use in netbooks and MIDs. The platform consists of operating system, user interface and application software, and is claimed to be the first truly open and complete mobile software for mobile terminals.
To put it simply, the Android system is actually a very open system. It can not only realize the functions of the most commonly used notebook computers, but also realize various directional operations like mobile phones. Moreover, it is specially designed for mobile phones. The operating system developed for equipment has advantages in system resource consumption and human-computer interaction design. It is an operating system that combines traditional and advanced advantages.
New Android Tablet,Android Tablet,New Android Tablet
Jingjiang Gisen Technology Co.,Ltd , https://www.jsgisengroup.com