| 摘要 |
Industrial aspirator for the suction and discharging of liquid and solid substances, comprising a container to temporarily contain the said liquid and solid substances aspirated through at least one sleeve in fluid connection to this and a means of producing and directing in alternate way a flow of air through one or more openings of said container from the outside into said container and vice-versa, characterized by said means comprising at least one first ventilation unit to produce said flow of air from the inside to the outside of said container through said one or more openings, at least one second ventilation unit to produce said flow of air from the outside into said container through said one or more openings, and at least one duct for each of said first and second ventilation units directing the said flow of air through said one or more openings of said container.
|
