FIELD: dust collection equipment.
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. Invention is aimed to increase efficiency and reliability of dust-collecting process, as well as to reduce metal intensity and vibro-acoustic activity of apparatus as a whole. In two-stage dust collection unit, which includes cyclone for pre-cleaning dust collection system, which comprises body consisting of cylindrical and conical parts, peripheral inlet of gas flow, made in form of inlet pipe, and exhaust device comprising exhaust pipe for outlet of purified gas, upper and lower housing having inner cup housed therein with sump and discharge tube, spreader having splitter arranged in exhaust pipe, in exhaust pipe there is filter element consisting of parts that are formed by exhaust pipe and dissipator, fine filter with integrated fire and explosion safety system, each of nozzles of fire-explosion safety system of the device includes body and coaxially disposed and rigidly connected to it in upper part fitting with an inlet cylindrical bore, connected to the diffuser, which is axially symmetric in the housing, on the cut-out of which is located a perforated disk, and in the lower part of the housing is located axially symmetrical to housing a nozzle with at least three projections centering it in axial cylindrical chamber, the nozzle is made with a central hole on inner surface of which a screw thread is made, and between the perforated disk and the nozzle is placed a hollow screw-shaped coniform swirl nozzle with a screw thread, and the nozzle is pressed against the nozzle housing by a threading bead with a central confuser.
EFFECT: increase in efficiency and reliability of dust collection process by providing installation with fire-explosion safety system.
1 cl, 6 dwg
