Device for collecting air sporopollen in arid and semi-arid areas
The invention discloses a device for collecting air sporopollen in arid and semi-arid areas. The device is characterized in that a stainless steel ring is embedded in a stainless steel cylinder and an upper opening of a funnel, the stainless steel ring is fastened with the upper opening of the funne...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a device for collecting air sporopollen in arid and semi-arid areas. The device is characterized in that a stainless steel ring is embedded in a stainless steel cylinder and an upper opening of a funnel, the stainless steel ring is fastened with the upper opening of the funnel, and the stainless steel cylinder is spirally connected with the stainless steel ring; an opening is cut in the side face of the wall of the stainless steel cylinder, a stainless steel screen is welded behind the opening, a square hole is cut in the position, opposite to the opening, of the wall of the stainless steel cylinder, and a square pipe is vertically welded in the square hole, located between the walls of the stainless steel cylinder and extends into the stainless steel cylinder. a screen with the area larger than that of a pipe opening is welded to the outer side of the square pipe; a stainless steel strip is additionally arranged in the middle of the inner side of the screen and clings to the wall of t |
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