AUTOMATIC SYSTEM OF MINE WORKINGS DUST SUPPRESSION Russian patent published in 2025 - IPC E21F5/04 B01D25/00 

FIELD: mining.

SUBSTANCE: invention relates to an automatic system for dust suppression of mine workings. System includes nozzles connected to channels for supply of water medium. Backwash filter is connected to the water medium supply channels, the filter includes an inlet unit containing a channel for inlet of the liquid to be cleaned, which is connected to a filtering chamber in which a filter element is installed, which is connected to an outlet unit containing a channel for removal of the cleaned liquid. Filter is equipped with one more additional filtering chamber also connected to the inlet and outlet units. Inlet parts of filtering chambers are made with possibility of connection with both inlet channel of cleaned liquid, and with outlet channel of contaminated liquid. Between the backwash filter and the nozzles there is an injector unit, which includes a control chamber made tight and divided into two parts by a flexible membrane, a housing with a built-in control mechanism consisting of a compression spring and a hydraulic control valve mechanically connected to the flexible membrane in the control chamber. System also includes a check valve installed on the free end of the surfactant suction hose and configured to be lowered into the tank with the surfactant, a pipeline for supplying surfactant, a pipeline for feeding water into the control chamber, and a pipeline for unloading the control chamber. Pipelines are installed on the outer side of the housing of the injector unit, a branch pipe for connection of the surfactant suction hose from the reservoir for their storage, a branch pipe for connecting the hose with the ready emulsion, which are mounted on the outer side of the housing of the injector unit. System also includes a valve for creating a working differential pressure and a branch pipe for connecting a water supply hose, which are installed on the opposite end of the housing of the injector unit from the control chamber.

EFFECT: creation of reliable, durable and technological device, which allows to improve quality of dust suppression in mine workings, including hazardous in terms of gas and dust.

2 cl, 10 dwg