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| Name | Why Are They Sprinkling Water on Coal? #shorts |
| Video Uploader | Video From Milopax |
| Upload Date | This Video Uploaded At 10-05-2024 09:58:23 |
| Video Discription | Why Are They Sprinkling Water on Coal? Sprinkling water on coal is known as "coal dust suppression" or "coal dust control." It is a critical practice aimed at averting potential disasters and safeguarding both human lives and the environment. Dampening the coal significantly reduces the risk of coal dust explosions. Airborne coal dust, a highly combustible substance, poses a severe threat in confined spaces like mines and storage facilities. The water application effectively weighs down the dust particles, preventing their suspension in the air and subsequent ignition. Additionally, this process curtails air pollution caused by coal dust, ameliorating respiratory health concerns. Moreover, water aids in maintaining coal's moisture content during storage, thwarting potential environmental contamination due to leaching. Furthermore, it enhances the handling efficiency of coal during transportation, minimizing losses and accidents. By mitigating the risk of fire, protecting workers, and promoting environmental responsibility, sprinkling water on coal proves indispensable in the coal industry. #coal #water #dust Note: "The appearance of U.S. Department of Defense (DoD) visual information does not imply or constitute DoD endorsement." ADDITIONAL READINGS: CONSTANT soaking of coal stockpiles with recycled water is considered industry best practice to suppress the spread of dangerous coal dust. CONSTANT soaking of coal stockpiles with recycled water is considered industry best practice to suppress the spread of dangerous coal dust. While such hi-tech systems cost millions of dollars in infrastructure, they do prevent dust lift-off in even the strongest winds. But you won't see them operating at Port of Brisbane. At the Port Kembla Coal Terminal in NSW, "preventing wind-born dust leaving the site" is viewed as its "biggest environmental challenge", according to the company's environmental policy. The port has 177 computer-controlled sprayers soaking its coal in regular cycles, adjusting to wind and weather conditions. The Port of Brisbane, in contrast, says coal dust is "not an issue" there, and places the responsibility for controlling emissions from growing coal stockpiles on its tenant, Queensland Bulk Handling. QBH is a subsidiary of New Hope Coal, which operates the Darling Downs mine that supplies most of the coal that is transported by rail through Brisbane. New Hope and the port both declined to allow The Courier-Mail access to view how the stockpile is managed. A New Hope spokesman also declined to disclose what techniques the company uses to suppress dust, except to say it "has the ability to use water spray if required". New Hope last week announced plans to start veneering coal train wagons before they left the mines. Veneering - spraying wagons with a sticky polymer - can reduce dust emissions by 50 to 90 per cent. The process has been used in Central Queensland by companies like Anglo Coal for almost five years. In spite of recent moves to wean the world of fossil fuels, coal remains the main source of power in many countries. Coal yards are prone to spontaneous ignition, a problem faced in every country that stores or transports coal. Depending on the environment-temperature, ventilation, and the rank of the coal-heating and self-ignition can be a longer or shorter process, but the possibility can never be entirely dismissed. A plethora of studies have modelled this oxidation behavior and proposed countermeasures. Most often, human intervention is necessary, which is both slow and dangerous for the firefighters involved. In this study, we propose to build a complete firefighting solution which is mounted on a number of towers sufficient to cover the area of an open coal yard, complete with redundancy. Each tower includes an inexpensive infrared detector, a water dispenser and a controller programmed to identify areas of elevated temperature, and actuate the dispenser. The heat direction algorithm calculates the parameters to position the water dispenser so that it covers the area. A prototype has been built from inexpensive components to demonstrate the effectiveness at detecting and extinguishing arising fires, and a solution has been costed for the coal yard in the case study. Water expulsion To adjust the water dispensing valve, servo motors were selected which rotate the nozzle to the required coordinate. Servo motors do not require a motor driver and can be connected directly to a power supply, and they provide precise angle control. They also have a good stall torque, meaning the position of the motor arm is sufficiently stable against external torques applied on the motor arm. This will ensure, after rotating the motor arm to calculated position, that the arm does not move due to weight of the water hose, or due to the jerks induced from rapid flow rate variations of the water jet. xhpRFS0nakU |
| Category | Education |
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