48results about How to "Reduce the chance of spontaneous combustion" patented technology

The invention relates to the field of boiler safety in power plants, and discloses a spontaneous combustion pre-warning and fireproofing system for coal stored in a raw coal hopper. The spontaneous combustion pre-warning and fireproofing system comprises a CO sensor, a smoke detector, one or more of temperature sensors, a CO2 gas bottle and a controller, wherein the CO sensor is positioned at the top of the raw coal hopper, and used for detecting the CO concentration at the top of the raw coal hopper; the smoke detector is positioned at the top of the raw coal hopper, and used for detecting the smoke concentration at the top of the raw coal hopper; the temperature sensors are positioned on the outer walls at highly spontaneous combustion points of the raw coal hopper, and used for detecting the temperatures of the highly spontaneous combustion points of the raw coal hopper; the CO2 gas bottle is connected with a first stop valve, and used for supplying CO2 gas; the controller is connected with one or more of the CO sensor, the smoke sensor and the temperature sensors as well as with the first stop valve, and used for controlling the open-close of the first stop valve according to the information provided by one or more of the CO sensor, the smoke sensor and the temperature sensors, so as to ensure that the CO2 gas bottle is communicated with or isolated from the raw coal hopper. Through the adoption of the spontaneous combustion pre-warning and fireproofing system, automatic pre-warning and inerting extinguishment can be realized when the coal stored in the raw coal hopper is subjected to spontaneous combustion.