FIELD: municipal engineering. SUBSTANCE: intake fixture 3 is mounted on the roof of building 2 and is connected up to horizontal section 13 of the pipeline system by means of a hose. The suction device with the liquid filter and fan 22 is set up on self-moving device 21 and is connected up to vertical section 15 of the pipeline system by means of hose 18. After the fan is switched on, the dust collected by the intake fixture from the roof of the building is absorbed by the suction device and settles down on bottom 25. The air being purified is ejected into the atmosphere. EFFECT: enhanced quality of dust collecting from the roofs of industrial buildings. 1 cl, 5 dwg
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