A method for efficiently treating spontaneous ignition of the remaining coal in a large area goaf of a shallow-buried coal bed, which method integrates leaking stoppage, airflow control and fast inerting and cooling so as to efficiently prevent and treat the spontaneous ignition of the remaining coal in the large area goaf of the shallow-buried coal bed.

Disclosed is a control method of a lifting apparatus for a highly-mounted device. The control method includes (a) outputting a descending signal in a state where the main body and the lifting body are coupled; (b) determining whether the lifting body is normally released downward from the main body according to the descending signal; and (c) stopping the driving motor or executing the step (a) again when the lifting body is not normally released downward, wherein in the step (b), it is determined whether the lifting body is normally released downward from the main body by checking whether a weight of the lifting body is applied to the wire rope.

Methods, systems, and devices for disrupting phenomena are disclosed. An example device can comprise a transducer configured to receive a signal and output a longitudinal wave based on the signal. The example device can comprise a wave enhancer coupled to the transducer and configured to direct the longitudinal wave into a form having lower attenuation in a medium than the longitudinal wave as output from the transducer.

A method for improving the hit accuracy of fire detection systems controlled by infrared and video fire detection by means of a first IR/video camera system for the first detection unit (D1) to ensure continuous fire detection and a second IR/video camera system for the second detection unit (D2) to ensure automatic target tracking with respect to the source of fire, as well as to an extinguisher launcher (A) rigidly connected to the second detection unit. The method is characterised by steps through which video/infrared-controlled extinguishing systems can be precisely hit with regard to the target precision, and fires can be combated as quickly as possible, even in the early phase, with as little extinguishing agent as possible.

A method of fire suppression may include injecting a reactive agent into a reaction zone to produce a catalytically active species for fire suppression and conveying the catalytically active species to a fire to catalytically interfere with flame chemistry of the fire. Fire in a fuel tank may be suppressed by injecting the reactive agent into a convective flow of a mixture of fuel and oxidizer in a fuel tank, the reactive agent reacting in the fuel tank to release a species which catalytically interferes with flame chemistry to suppress fire in the fuel tank. Fire at an airplane crash may be suppressed by releasing the reactive agent from the container at the crash site to produce an active species to catalytically interfere with a fire at the crash site.

Devices, systems, and methods for extinguishing fires are provided. A device for extinguishing fires may include a nozzle defining a flow channel. The device may include a convector fluidly coupled with the flow channel and configured to introduce a flow through the flow channel. The device may also include a vortex generator disposed within the nozzle, the vortex generator positioned to interact with the flow and to form a stream-wise vortex external to the nozzle.

An emergency incident system is disclosed. The emergency incident system has an emergency incident module, comprising computer-executable code stored in non-volatile memory, a computing device, a sensor assembly, and one or more user devices. The emergency incident module, the computing device, the sensor assembly, and the one or more user devices are configured to sense data of environmental conditions, receive input of a first parameter data from one or more users, determine at least one fluid throw based on the sensed data and the first parameter data, display the at least one fluid throw to the one or more users, receive input of a second parameter data from the one or more users, and update the at least one fluid throw based on the sensed data and the second parameter data.

A fire protection system includes a fire extinguisher including a housing. The housing includes an extinguisher outlet and a burst disk. The burst disk configured to retain a volume of fire suppressant material in the housing. A firing cartridge is operably connected to the housing. The firing cartridge includes an output charge, and an ignition charge that, when detonated, causes release of the output charge to rupture the burst disk and release the volume of fire suppressant material through the extinguisher outlet. An optical fiber is configured to transmit a light signal toward the ignition charge to heat and detonate the ignition charge. A light source is operably connected to the optical fiber to transmit the light signal along the optical fiber.

A fire protection system includes two or more fire extinguishers. Each fire extinguisher includes a housing, the housing including an extinguisher outlet and a burst disk. The burst disk is configured to retain a volume of fire suppressant material in the housing. A firing cartridge is operably connected to the housing and includes an output charge, and an ignition charge that, when detonated, causes release of the output charge to rupture the burst disk and release the volume of fire suppressant material through the extinguisher outlet. An optical fiber is configured to transmit a light signal toward the ignition charge to heat and detonate the ignition charge. A light source is operably connected to the optical fiber to selectably transmit a first light signal to selectably activate a first fire extinguisher or a second fire extinguisher of the two or more fire extinguishers.

A system and method for extinguishing wildfires with the assistance of soundwaves at a distance is provided. The system generally comprises a camera, output device, waveguide, processor, power supply, and a non-transitory computer-readable medium having instructions stored thereon that instruct the processor to perform operations of the system. In one preferred embodiment, a database may be operably connected to the processor and store any data associated with a combustion reaction therein. In some preferred embodiments, the system may comprise a computing device having a user interface, which may present, to a user, data that may inform the user about a particular combustion reaction and/or allow the user to control the system remotely. The system and method are designed to safely stop wildfires without a resource that must be spent and subsequently replenished.