DEVICE FOR LAYING FOAM SUPPORT STRIPS DURING ANNEALING Russian patent published in 2020 - IPC A62C3/02 

FIELD: fire safety.

SUBSTANCE: invention relates to forest fire prevention and production of preventive burn-out of forest combustible materials, namely to portable motorized devices for laying foam support strips in order to produce annealing from them. Disclosed is a device for laying foam support strips during annealing, comprising a reservoir for liquid (7), fan (1) driven by an internal combustion engine, air shaft (3), fixed on the blower blow line, flexible pipeline (6) for supply of liquid from reservoir (7) into air shaft (3) and foam generator (8) fixed at the end of air shaft. Novelty is that the device is additionally equipped with ejector (4) placed inside the air shaft, in which pipeline (5) is coaxially installed with the possibility of movement relative to the longitudinal axis and fixation, hydraulically connected to flexible pipeline (6) for supply of liquid from reservoir (7). High-speed air jet generated by fan (1) in casing (2) passes along barrel (3) and enters ejector (4), where it is accelerated, and foaming composition is sucked out (ejects) from pipeline (5) connected via flexible pipeline (6) with backpack reservoir (7), on screens of foam generator (8), after which the foam on the soil surface forms a foam support strip. Amount of foaming agent corresponds to air flow rate, which increases device efficiency.

EFFECT: improved performance of the device for laying foam support strips during annealing, increased efficiency and quality of the foam support strip, reduced non-productive consumption of energy and weight of the device.

1 cl, 1 dwg