3results about How to "Solve spontaneous combustion" patented technology

The utility model relates to the field of cables, and discloses a flame-retardant fireproof cable, which comprises a wire and a wear-resistant protective sleeve, the outer wall of the wire is fixedly connected with a first insulating layer, the outer wall of the first insulating layer is fixedly connected with a first flame-retardant layer, the inner wall of the wear-resistant protective sleeve is fixedly connected with a second flame-retardant layer, and the outer wall of the second flame-retardant layer is fixedly connected with a second flame-retardant layer. The inner wall of the second flame-retardant layer is fixedly connected with a second waterproof layer, the inner wall of the second waterproof layer is fixedly connected with a metal armor layer, the inner wall of the metal armor layer is fixedly connected with a compression-resistant layer, the inner wall of the compression-resistant layer is fixedly connected with a second insulating layer, and the inner wall of the second insulating layer is fixedly connected with a first waterproof layer. According to the utility model, through the second flame-retardant layer, the cable can be prevented from burning when a fire disaster occurs, the damage degree of the fire disaster to the cable is reduced, and through the first flame-retardant layer, the problem of spontaneous combustion of the cable caused by local overheating due to short circuit of the cable is solved.

The application discloses a biomass powder hot air feeding and blending combustion system, which comprises a stock bin, a belt conveyor, a dryer, a boiler, a burner, an air preheater and a dust collector. The air outlet end of the boiler is connected with the air preheater, and the flue gas outlet end of the air preheater is connected with the dust collector. The dust collector is connected with a flue gas discharge pipeline structure. The air preheater is assembled with a secondary air pipeline structure. The air inlet end of the dryer is assembled with an induced draft fan. The flue gas discharge pipeline structure and the secondary air pipeline structure controlled by a valve are connected with the air inlet end of the induced draft fan. The induced draft fan pumps the feeding hot air formed by the secondary air and the dust-collected flue gas into the dryer to dry the material. The application also discloses a blending combustion method based on the blending combustion system, which comprises the conveying of the biomass material and the controlled conveying of the secondary air and the dust-collected flue gas to realize the controlled blending combustion. The blending combustion efficiency of the biomass is greatly improved by the technical scheme.

This application relates to a movable coal-fired spontaneous combustion prevention and monitoring device and method for use in silos. The device's power supply module moves periodically along a preset path laid out on the inner wall of the silo, and is connected to a control module to supply power to the control module. The control module is mounted on the power supply module and connected to a temperature monitoring module. The temperature monitoring module includes a telescopic temperature sensor and a temperature sensing element mounted on the telescopic temperature sensor. Under the action of the control module, the telescopic temperature sensor extends relative to the control module to insert into the coal inside the silo and measures the temperature through the temperature sensing element. It also retracts relative to the control module to detach from the coal. This method enables automatic monitoring of coal pile temperature changes periodically, saving manpower. The telescopic temperature sensor, when extended and inserted into the coal, monitors a wide range of temperature changes within the coal pile, facilitating early warning and timely detection of early spontaneous combustion hazards.