The method of reconstruction of fire mineralized strips
(57) Abstract:The invention relates to the field of fighting forest fires, and in particular to methods of preventing the spread of forest ground fires gasket and periodic fire charge promotion mineralized bands. The objective of the invention is to improve the reliability of the method. The method is as follows. Before the reconstruction of the mineralized strips laid in two parallel furrows with intact soil layer between them, combustible materials found on the surface of this layer, moisturize with water with addition of surfactants. Then produce the excavation of one of the furrow and laying it in the adjacent furrow, while falling asleep combustible materials on the surface of intact soil layer. Hydrated and thus protected from drying poured from above ground flammable materials are subjected to accelerated biological decomposition and cease to be agents of flameless combustion, thereby increasing the reliability of the reconstructed band. The invention relates to the field of fighting forest fires, and in particular to methods of prevention rasprosterlas.The known method of reconstruction (ponovleniya) mineralized bands, consisting in periodic removal of soil from the furrows with the formation of spoil material on the sides of the furrow .The disadvantage of this method is the low reliability renewed with the band due to lack of backfill ground formed on the surface of the pile layer of combustible materials in the form of herbal vegetation and litter of leaves, needles, small branches. As a result, after several years of efficient (able to contain the fire) band width is reduced almost to the width of the furrow that creates the probability of fire in the adjacent forest area. In addition, repeated excavation of the same furrow leads to its deepening and, consequently, to the development of water erosion processes.The closest in technical essence and the achieved result to the invention is a method of reconstruction of the mineralized strips laid in two parallel furrows with intact soil layer between them, consisting in periodic excavation of one of the furrow with the laying of its adjacent furrow, and with a simultaneous filling the excavated soil intact soil nadezhnosti, because on the surface covered with soil intact soil layer are organic materials in the form of herbal vegetation, leaf litter, pine needles, etc. that a long time do not decompose, are conductors of flameless combustion in phase and reduce the effective width of the reconstructed mineralized strips.The objective of the invention is to improve the reliability of the method of reconstruction of the mineralized strips.The technical result in the way of reconstruction of the mineralized strips laid in two parallel furrows with intact soil layer between them, consisting in periodic excavation of one of the furrow with the laying of its adjacent furrow, and with a simultaneous filling the excavated soil intact soil layer, is achieved by the fact that before falling asleep intact soil layer is subjected to hydration in an aqueous solution of surface-active substances.The method of reconstruction of the mineralized bands is as follows:Before the reconstruction of the mineralized strips of forest combustible materials located on the surface of intact soil between the furrows, SWL is the RF 2170124), scrip tank filled with water with the addition of a small amount (0,3-0,6%) surfactant - sultanol NP-1. Then, using the combination with a traction vehicle fire plow PLA-1,3 produce the excavation of one of the furrow and laying it in the adjacent furrow, while falling asleep excavated soil found on the surface of intact soil layer combustible materials which, when present in hydrated form, are biodegradable and in a relatively short period of time, cease to be conductors of burning. Shorten the decomposition is facilitated by the presence in water of sulfinol NP-1, through which it becomes an increased ability to wetting of surfaces and penetrates deep into the pores of combustible materials. Drying of combustible materials is prevented covered them with a layer of soil. Bringing conductors flameless combustion in negative state is equivalent to increasing the width of the reconstructed mineralized bands, and consequently increase its ability to prevent the spread of a forest fire.Sources of information
1. Red M, forest Protection. M, Forestry, 1981, S. 68.2. A. S., laid in two parallel furrows with soil layer between them, consisting in periodic excavation of one of the furrow with the laying of its adjacent furrow with simultaneous filling the excavated soil intact soil layer, characterized in that before falling asleep intact soil layer is subjected to hydration in an aqueous solution of surfactants.
FIELD: fire-fighting equipment, particularly for localizing fire appeared in process orifices, for instance during coloring large articles or on stage.
SUBSTANCE: method involves using elastic fire barrier formed as dropping curtain device for fire localization. Device for above method implementation performs curtain movement in several modes. Device structure is so that device protects maintenance staff or actors present in working area from injuries during heavy curtain motion. Screen has door located in lower part thereof to evacuate people from dangerous area by rescuers or for people self-evacuation.
EFFECT: possibility of injury prevention, prevention of hazardous products escape from fire site, provision of seal between screen and frame when process opening is fully closed.
FIELD: fire-fighting, particularly for extinguishing forest fires.
SUBSTANCE: method involves burning combustible materials in direction from control line to fire propagation line with the use of remote operated robotic system. Remote operated robotic system includes flame thrower and rotary screw drive, which provides system movement simultaneously with digging control line.
EFFECT: reduced time of fire service response, increased efficiency of fire localization and operational safety.
FIELD: forestry, particularly for fighting fires in high-capacity and medium-capacity peat beds.
SUBSTANCE: drainage system includes a number of water drainage channels with control-and-shutoff valves, manifold with drain lines connected thereto and intercepting channel located above drained peat bed and communicated with water inlet. Intercepting channel is provided with control-and-shutoff means to accumulate surface water flow and to create water reserve. Intercepting channel is connected with manifold head part by means of pipeline having valve gate. Manifold is provided with movable partition. Intercepting channel has antifiltering shield.
EFFECT: possibility of fire localization without operation stoppage and without underflooding surrounding territories and, as result, reduced economic losses.
FIELD: fire-fighting equipment, particularly for extinguishing/localizing large-scale and powerful fires, including forest and forest-steppe fires, difficult-to-access fires, namely steep mountains, impassable taiga, jungle or fires close to risk areas (explosive environment or high-temperature areas).
SUBSTANCE: method involves exerting influence of air-blast wave on fire site and applying high-speed jet of air-dispersed fire-extinguishing mixture formed during fire-suppression device explosion. Fire-suppression device comprises vessel with fire-extinguishing composition and dispersing charge. Vessel is provided with structural members providing device operation in service conditions. Structural members are separated from vessel until dispersing charge blasting.
EFFECT: extended range of technical means for fire-suppression device delivery to fire site, reduced time of their preparing to use, prevention of device fragments spreading after device blasting.
4 cl, 3 dwg
FIELD: fire-fighting equipment, particularly for peat fire spread prevention.
SUBSTANCE: method involves forming intermittent strips; supplying water to intermittent strips and forming wetted area. Wetted area is formed by arranging mole drains along intermittent strip lengths and supplying water to them to moisture peat bed through the whole thickness thereof. To perform preventive water conservation intermittent strip surfaces located above mole drains are loosened for 0.15 - 0.2 m depth and 1.0 - 1.5 m width and intermittent strip surfaces above mole drains in fire vicinity are rolled up. Fire inhibitors are added to water before supplying thereof in mole drains.
EFFECT: increased fire-protective efficiency regardless of peat bed thickness.
2 cl, 2 dwg
FIELD: fire fighting equipment with the use of helicopters with rotary propellers, which create powerful descending air flow, particularly to extinguish forest fires.
SUBSTANCE: method involves suspending conical case with fire-extinguishing devices under helicopter and using powerful descending air flow produced by helicopter propellers. If necessary air flow may be mixed with mechanical particles (sand) or chemical additives for extinguishing fires. The case is produced of high-strength and light-weight material to provide case weight of not more than 2 tons.
EFFECT: possibility to use air flow going from helicopter propeller, reduced fuel consumption due to prevention of helicopter usage in shuttle mode, possibility of continuous fire extinguishing, increased helicopter park.
3 cl, 1 dwg
FIELD: fire-fighting means, particularly to extinguish ground and crown forest fires and to prevent spreading thereof.
SUBSTANCE: method involves supplying fire-extinguishing gas from turbojet plant compressor nozzle to fire site, wherein gas is directed to burned-out and unburned matter along with simultaneous blowing off thereof in burned-out areas. Gas is delivered through removable compressor nozzle head flattened from both sides thereof. Nozzle head may rotate through 90° to divide fire front into parts to be separately extinguished.
EFFECT: increased efficiency along with reduced danger when extinguishing fire.
2 cl, 3 dwg
FIELD: fire-fighting equipment, particularly to combat large-scale fires, including forest and steppe ones, fires in difficult-to-access areas (steep mountains, impassible taiga, jungle) and fire sites located near high-risk objects (highly explosive or high-temperature ones).
SUBSTANCE: device comprises stabilizer and vessel, both formed of thermoplastic material, as well as dispersing charge and fire-extinguishing substance located into vessel. The device also has explosive means and suspension system including cover plate with eyes and members enclosing vessel. Suspension system is connected with stabilizer bottom by means of flexible tie and is provided with releasing mechanism and with members providing forced detaching thereof from vessel.
EFFECT: prevention of scattering fragments of fire-extinguishing device after its operation, increased surface of fire-extinguishing substance contact with burning matter.
4 cl, 3 dwg
FIELD: fire protection means, particularly to protect peat beds against fire or to prevent burning of compacted loose combustible materials, particularly pulp and paper industry waste materials.
SUBSTANCE: method involves forming channels in peat bed surface in fire-risk areas during winter period; filling the channels and depressions with water; freezing thereof in the channels and depressions to moisten peat bed during water ice thawing. To protect ice against the influence of direct sunlight ice is covered with heat-insulation material, particularly with ground or peat layer. Water is fed from underground horizons located under the peat beds.
EFFECT: increased efficiency.
FIELD: fire fighting, particularly movable fire-extinguishing devices.
SUBSTANCE: robotic apparatus comprises system to provide self-defense thereof against fire hazard and means to prevent twisting of fire-extinguishant delivery hose connecting fire-extinguisher with nozzle over the full circular operating range when nozzle is aimed at fire site.
EFFECT: possibility to operate in extreme conditions, increased reliability and simplified structure.
2 cl, 2 dwg