Dust fall measuring instrument and measuring method thereof

Abstract

The invention relates to a dust fall measuring instrument and a measuring method thereof. The dust fall measuring instrument provided by the invention comprises a control device and a dust collectionweighing device, the dust collection weighing device is provided with a first cavity and a second cavity, the first cavity is separated from the second cavity, a dust collection assembly and a motioncontrol assembly are arranged in the first cavity separately, and the weighing assembly is arranged in the second cavity. The control device comprises a constant-temperature and constant-humidity assembly, and the constant-temperature and constant-humidity assembly is used for providing a constant-temperature and constant-humidity environment for the second cavity. According to the present invention, a dust collection cylinder is provided with a frustum, so that falling dust has inclination and can be better guided into a dust collection cylinder when being flushed; the cylinder wall of the dust collection cylinder is coated with a Teflon coating, so that the cleanliness of the cylinder wall is guaranteed; the water or falling dust attached to the cylinder wall can be guided into the dustcollection cylinder along the taper of the frustum, so that the falling dust collection is more convenient and faster. A movable cover is arranged outside the whole structure, so that the waterproof stability is greatly improved, the water tightness of the dust fall measuring instrument is improved, and the normal use of the internal structure of the structure is guaranteed.

Description

technical field [0001] The invention relates to the technical field of environmental protection and safety production management, in particular to a dust fall measuring instrument and a measuring method thereof. Background technique [0002] Dust fall is the deposit of dust in the atmosphere. The particles that can settle in the air are settled in the dust collection cylinder equipped with ethylene glycol aqueous solution as the collection liquid. After evaporation, drying and weighing, the dust fall amount is calculated. With the increase in the frequency and hazards of dust in the country, the research on atmospheric dustfall is intensifying. The monitoring of atmospheric dustfall on the market generally requires monitors to run back and forth to take samples and bring the dust collection tank back to the laboratory for testing. [0003] In order to solve the above-mentioned problem of running back and forth for sampling and detection, a kind of dust fall measurement equip...

AI Technical Summary

Problems solved by technology

[0004] (1) The cover of the existing dustfall measurement equipment as a closed collection port is placed inside the structure of the measuring instrument. When encountering severe weather such as a heavy rain environment, due to the poor drainage performance and poor waterproof performance of the cover, rainwater is easy to infiltrate. The interior of the instrument makes the internal parts of the instrument damp, which affects the normal use of the dust fall measuring instrument and reduces the service life of the instrument

[0005] (2) The volume of the structure used for dust collection in the existing dust fall measurement equipment is relatively large, resulting in poor stability of weighing and increased measurement error

[0006] (3) In the constant temperature and humidity environment of the existing dustfall measurement equipment, there is a heating structure that accelerates the evaporation of water. After the dust collection container is heated, it needs to absorb moisture and cool through the felt in the constant temperature and humidity environment. If the dust collection container is to be cooled to It takes a lot of time to meet the constant temperature and humidity conditions of the measurement, which prolongs the entire weighing time

[0007] (4) The existing dust fall measurement equipment adopts an integral structural layout, which is not conducive to quick and easy maintenance by maintenance personnel

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