The issue of fire prevention in mining vehicles has always been a key concern for mining vehicle manufacturers and mining vehicle users. There are many precedents for mining vehicle fire accidents at home and abroad. Once a fire breaks out in a mining vehicle, it will be fierce and difficult to save, and the cables, wires, instruments, cabs, mining vehicle circuit boards, diesel engines, hydraulic gearboxes, etc. will be burned in a very short period of time. , causing the entire vehicle to be scrapped. There is no doubt that fire accidents are serious in nature and cause huge economic losses.
Main causes of mining vehicle fires
1. Fire caused by electrical failure: Long-term use or failure to replace according to regulations causes aging and damage of mining vehicle cables and wires, and decreases in insulation strength, causing leakage and short circuits and fires.
2. Misfire caused by diesel engine failure: The lubrication of the turbocharger on the diesel engine is completed by the pressure oil drawn from the oil pipe from the main oil channel. When the oil pipe joint leaks or the oil pipe ruptures, the lubricating oil splashes onto the supercharger. It is easy to catch fire on the casing or exhaust pipe.
3. Brake failure and fire: Brakes are prone to high temperatures during long-term operation. If brake fluid leaks into the brake disc, it is also easy to cause a fire.
4. Fire caused by hydraulic system failure: The high-pressure hose is worn during operation, which can easily lead to fire accidents.
How to effectively prevent mining vehicle fires?
Mine car automatic fire extinguishing systems are currently widely selected mining vehicle fire prevention devices by mining companies. Currently, there are many brands of mining vehicle automatic fire extinguishing systems. Their main functions are fire detection and fire control and extinguishing. However, they are based on different applications of fire extinguishing agents and fire fighting technologies. , their products are different in terms of fire-extinguishing performance, fire-extinguishing speed, and starting methods.
The mine car automatic fire extinguishing system can be quickly activated when a fire occurs, and can promptly and accurately capture deep-seated fire sources and hidden fire sources. The system is sturdy and durable and has undergone special anti-corrosion treatment, so it is not affected by the harsh and complex environment of the mine. At the same time, the fire extinguishing system/device adopts innovative fire protection technology without electricity and voltage. The performance and stability of the system are better and are not affected by factors such as external power supply. Therefore, the research and development and application of the automatic fire extinguishing system can effectively solve the problem of coal shearers. , hydraulic excavators, support trucks, frame transport trucks, tunnel boring machines and other mining vehicle fire protection issues. At the same time, the system can start and control fire extinguishing independently without manual operation. The unmanned fire extinguishing method greatly reduces the risk of mining vehicle fires to people. threaten. Its level of automation and intelligence has also effectively promoted the development process of mining intelligence.
In addition to the above application advantages of the mine car automatic fire extinguishing system, its other core technology is fine spray technology and new and efficient water-based fire extinguishing agents. Fine spray technology improves the accuracy of system agent spraying and agent coverage area, and It has the function of accelerating cooling; the water-based fire extinguishing agent has the characteristics of good insulation performance, environmental protection and non-toxicity, which will not cause damage to equipment and people. Therefore, this system has obvious advantages in preventing mining vehicle fire risks.
