TWO-STEP INSTALLATION OF DUST-COLLECTOR Russian patent published in 2018 - IPC B04C9/00 B01D50/00 

FIELD: dust collection technique.

SUBSTANCE: invention relates to the dust-collecting technique and can be used in the chemical, textile, food, light and other industries for the cleaning of dusty gases. Two-stage dust collection unit includes a pre-cleaning cyclone dust collection system, which includes a housing, consisting of cylindrical and conical parts, the peripheral input of the gas stream, made in the form of an inlet pipe, and an exhaust device containing an exhaust pipe to exit the purified gas, the upper and lower housing with an internal glass placed in them with a water tank and a drain tube. In the exhaust pipe there is a divider, a filtering element consisting of parts that are formed by an exhaust pipe and a divider, fine filter with built-in fire and explosion safety system. In addition, each of the nozzles of the fire and explosion safety system for operating the device includes a housing with a turbulence chamber and a nozzle, the housing is designed as an inlet fitting with a central hole and rigidly connected to it and with a coaxial cylindrical sleeve with internal thread and an expansion chamber, coaxial to housing. Coaxial to housing in its lower part nozzle is connected to sleeve by thread, made in the form of an inverted glass, in the bottom of which a turbulent swirler of fluid flow is made with at least two cylindrical bores, which are inclined to the axis of the nozzle, Central cylindrical orifice is also made on nozzle end surface and communicated with nozzle mixing chamber communicated in its turn with diffuser outlet chamber. Divider is installed in the diffuser outlet chamber in the form of at least three spokes, each of which is fixed at one end to the outer surface of the diffuser outlet chamber, perpendicular to the surface forming it, and the other is in the surface of the body of rotation, for example a ball which axis coincides with the axis of the diffuser outlet chamber, and the body of rotation itself is located in the lower part behind a cutoff of the diffuser outlet chamber. To the end surface of the cylindrical sleeve, coaxially with the body, coaxially diffuser chamber attached diffuser, the cut surface of which lies in the plane, located below the surface of the body of rotation of the divider. Or the divider is made in the form of two spokes, each of which is fixed with one end to the external surface of the diffuser outlet chamber, perpendicular to the surfaces forming it, and others on the axis, on which a rotational body is installed, made in the form of a ball, the center of which lies on the axis of the diffuser outlet chamber, the surface of the body of rotation, made in the form of a ball mounted on an axis for rotation, is made perforated. To the surface of the body of rotation, made in the form of a ball mounted on an axis with the possibility of rotation, the elements that carry out its rotation are installed, for example, in the form of sections of screw blades. On the inner surface of the central cylindrical throttle hole of the nozzle of the fire and explosion safety system, located in the nozzle end surface, screw grooves are made for additional swirling of the fluid flow, and in the body of rotation of the nozzle of the fire and explosion safety system, the axis of which coincides with the axis of the diffuser outlet chamber, and the rotational body itself is located in the lower part behind the diffuser exit chamber cut, resonant grooves are shaped in the form of a cylindrical surface of different diameters and lengths that serve as Helmholtz resonators, their dimensions are determined by the necessary pulsation frequency of the liquid flow to increase the fineness of the sprayed flame.

EFFECT: technical result is an increase in the efficiency and reliability of the dust collection process by ensuring the installation of an explosion and fire safety system.

1 cl, 4 dwg