Atmosphere dust-fall observation method

Abstract

The invention provides an atmosphere dust-fall observation method. An observation device method relevant to the method is composed of a support rod, a support transverse arm, a dust collection cylinder fixation basket, a dust collection cylinder, an upper pulley, a lower pulley, a wire rope, a tripod, a prefabricated base, a tie line, an anchor, a sliding lantern ring, a locking slice, a support transverse rod, an occlusion gap, a reinforcing block, a wire rope fixation ring, a fixation ring, a pulley support transverse arm, a fixation lantern ring, a wire rope fixation ring, a pulley fixation rope, a pulley rotation handle and a bolt. Using the above method, the atmosphere dust-fall is observed to realize the zero-climb exchange and synchronous observation of dust collection cylinders, and thus the dust-fall observation is more scientifically, safely and conveniently operated. The application range of the method is wide, the method can be used in a humid area and a dry area and be widely applied to research on environment, ecology, wind and sand, sand prevention and control engineering and so on.

Description

technical field [0001] The invention relates to an observation method for atmospheric dust fall in the monitoring of atmospheric environment quality. Background technique [0002] Dustfall refers to atmospheric solid particles with an aerodynamic equivalent diameter greater than 10 microns that can be naturally settled, and it is one of the main indicators for atmospheric environment monitoring. At present, the general method of collecting dust is the natural collection method of the container, and the dust collection cylinder is a general instrument for dust collection. However, there is no scientific and unified standard on how to set up the dust collection cylinder. Since the concentration of dust near the surface decreases with the increase of height, the dust collection capacity of the dust collection cylinders erected at different heights is also different. According to the national dust observation standard (GB / T 15265-94), the installation height of the dust collec...

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Problems solved by technology

Regular replacement of the dust collection cylinder requires people to climb high, which is prone to danger

In order to avoid the danger of climbing when changing the dust collection cylinder, Zhang Yuejin designed a fixed rod-moving rod combined atmospheric dust sampling rack (patent number 89218095.1), which can facilitate the replacement of the dust collection cylinder, but the fixed pull wire cannot be installed on the moving rod, making sampling unstable

[0003] Atmospheric dustfall dry method and wet method have different collection volumes, and generally require comparative observations over the same period; as scientific observations, it is generally necessary to repeat, but in the current dustfall collection method, only one dust collection cylinder can be installed on the bracket

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