CN104977187A - Timed and quantitative collection device used for atmospheric dust fall - Google Patents
Timed and quantitative collection device used for atmospheric dust fall Download PDFInfo
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- CN104977187A CN104977187A CN201410144146.3A CN201410144146A CN104977187A CN 104977187 A CN104977187 A CN 104977187A CN 201410144146 A CN201410144146 A CN 201410144146A CN 104977187 A CN104977187 A CN 104977187A
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Abstract
The invention relates to a timed and quantitative collection device used for atmospheric dust fall. The device is composed of a top cover, a buffer chamber, a bracket, a settling chamber, a collection chamber, a self-sealing bag and a hairbrush. The device can be used for collecting a atmospheric dust fall sample in certain time and certain area, so that the amount of atmospheric dust fall in unit time and unit area can be calculated and further dust fall pollution load can be researched. The device is simple in operation, is low in cost and is less in interference, so that defects of devices in the prior art can be overcome well. The device has a wide application prospect in the field of atmospheric dust fall pollution researching.
Description
Technical field:
The present invention relates to a kind of for atmospheric falling dust harvester at regular time and quantity.
Background technology:
Atmospheric falling dust is the general name that in air, particle diameter is greater than the solid particulate matter of 10 μm, reflects the natural subsidence amount of particle, represents with monthly falling to the weight of particle in unit area.Along with urbanization and industrialized continuous propelling, city dustfall content obviously increases, and in depositing dust, various pollutant load also increases, and becomes one of city main polluted factors.The research of polluting about atmospheric falling dust has become international focus, but the quantitative collection of atmospheric falling dust is the technical bottleneck advancing this area research always.
Existing atmospheric falling dust collection method has dry collection device, wet method gathering-device, glass ball gathering-device.Dry collection device cannot avoid the depositing dust " secondary plays dirt " having entered container, escapes from container; Wet method gathering-device adds a certain amount of liquid in container, and this can produce significant impact to the amount of depositing dust and composition; Glass ball gathering-device tiles one deck glass bead in a reservoir, and such depositing dust will fall into space therebetween, reduces but inevitable " secondary plays dirt ", and glass bead surface depositing dust is difficult to gather.Solve above technical matters imperative.
Summary of the invention:
A kind of be used for atmospheric falling dust at regular time and quantity harvester be made up of top cover, surge chamber, support, setting chamber, collecting chamber, valve bag, hairbrush, can be used for gathering certain hour certain area atmospheric falling dust sample, so that unit of account chronomere area atmospheric falling dust amount, and then research depositing dust pollutional load.This device have simple to operate, with low cost, disturb the features such as little, overcome the deficiency of existing apparatus well.
Apparatus of the present invention are made up of following components:
1. top cover: covering on above surge chamber for running into precipitation weather, avoiding sleet on the impact of sample in device, size slightly larger than surge chamber upper surface, but will guarantee top cover secret room; Material is poly (methyl methacrylate) plate or PVC transparent plate.
2. surge chamber: buffer strip when gathering for atmospheric falling dust, avoids depositing dust sample " secondary plays dirt ", escapes, be of a size of length: be wide from device: height=2:2:1, can determine according to sampling location, and suggestion is long is 0.5m or 1m, is convenient to reference area; Material is poly (methyl methacrylate) plate or PVC transparent plate, inwall polishing.
3. setting chamber: for accepting the sedimentation of atmospheric falling dust sample is an inverted positive truncated rectangular pyramids, top hollow out and surge chamber close proximity, and bottom connects with gatherer; Material is poly (methyl methacrylate) plate or PVC transparent plate, inwall polishing.
4. collecting chamber: for collecting atmospheric falling dust sample, be of a size of length: wide: height=1:1:1, can determine according to use valve bag, suggestion is long is 0.1m, is convenient to fixing valve bag; Material is poly (methyl methacrylate) plate or PVC transparent plate, inwall polishing.
5. support: for fixing whole depositing dust gathering-device, dimensional requirement path length and be widely slightly less than surge chamber external diameter in it, so that fixing, it is highly depending on sampling position, if place roof or eminence, suggestion 1.5m, if place level land, advises being not less than 2.0m; Material is stainless steel.
6. hairbrush: for cleaning the depositing dust sample remaining in collecting chamber surface, be nylon bristle.
The use procedure of atmospheric falling dust quantitative collection device:
1. select sampling location: select spacious level land, eminence or roof as far as possible.
2. harvester is assembled: be fixed on support by depositing dust gathering-device, and with bungee, valve bag be fixed on collecting chamber.
3. persistent collection depositing dust: open top cover, starts to collect atmospheric falling dust, and period pays close attention to Local Weather Report, meets precipitation weather, and top cover, is opening later in advance, continues to collect.
4. depositing dust sample is gathered: after persistent collection a period of time, just collected specimens; Carefully the depositing dust that whole gathering-device inwall remains is swept in the valve bag be fixed on collecting chamber with hairbrush, installs sample and take back lab analysis; Change new valve bag simultaneously, continue next time and collect.
Accompanying drawing illustrates:
Accompanying drawing 1 is apparatus structure schematic diagram;
Accompanying drawing 2 is device example photo.
Embodiment:
Embodiments of the invention:
The sample collection of heavy metal pollution research in 1 atmospheric falling dust
For the pollution problem of heavy metal in atmospheric falling dust, carry out the flux research of heavy metal in depositing dust, by building apparatus of the present invention (surge chamber: 0.5m*0.5m*0.25m; Collecting chamber: 0.01m*0.01m*0.01m; Material is PVC transparent plate), in units of the moon, acquisition units area atmospheric falling dust sample, and then analysis heavy metal content and form thereof.At present, apparatus of the present invention are utilized to gather 2 samples, respond well; In sample collection process, avoid " secondary plays dirt " problem well, and can not have an impact to depositing dust composition, sample collection is convenient.
Apparatus of the present invention have broad application prospects in atmospheric falling dust Pollution Study field.
Claims (2)
1. one kind for atmospheric falling dust harvester at regular time and quantity.It is characterized in that: this device is made up of top cover, surge chamber, support, setting chamber, collecting chamber, valve bag, hairbrush.
2. be used for atmospheric falling dust at regular time and quantity in harvester, containing surge chamber, setting chamber, collecting chamber integrated system according to one according to claim 1.It is characterized in that:
1. surge chamber, long: wide: height=2:2:1, can determine according to sampling location, suggestion is long is 0.5m or 1m; Setting chamber is an inverted positive truncated rectangular pyramids, top hollow out and surge chamber close proximity, and bottom connects with collecting chamber; Collecting chamber, long: wide: height=1:1:1, can determine according to use valve bag, suggestion is long is 0.1m.
2. surge chamber, setting chamber, collecting chamber use material to be poly (methyl methacrylate) plate or PVC transparent plate, inwall polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144146.3A CN104977187A (en) | 2014-04-11 | 2014-04-11 | Timed and quantitative collection device used for atmospheric dust fall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144146.3A CN104977187A (en) | 2014-04-11 | 2014-04-11 | Timed and quantitative collection device used for atmospheric dust fall |
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| Publication Number | Publication Date |
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| CN104977187A true CN104977187A (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410144146.3A Pending CN104977187A (en) | 2014-04-11 | 2014-04-11 | Timed and quantitative collection device used for atmospheric dust fall |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277389A (en) * | 2015-12-06 | 2016-01-27 | 北京工业大学 | Water wash sampling method for deposited pollutants on urban impermeable ground surface |
| CN107300488A (en) * | 2017-07-25 | 2017-10-27 | 广西农垦糖业集团红河制糖有限公司 | A kind of Semiautomatic intermittent honey material sampling apparatus |
| CN108548697A (en) * | 2018-05-07 | 2018-09-18 | 中国林业科学研究院 | Fall dust collector |
| CN110608969A (en) * | 2019-09-18 | 2019-12-24 | 沈阳农业大学 | Dust fall collecting device and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277389A (en) * | 2015-12-06 | 2016-01-27 | 北京工业大学 | Water wash sampling method for deposited pollutants on urban impermeable ground surface |
| CN107300488A (en) * | 2017-07-25 | 2017-10-27 | 广西农垦糖业集团红河制糖有限公司 | A kind of Semiautomatic intermittent honey material sampling apparatus |
| CN107300488B (en) * | 2017-07-25 | 2023-11-24 | 广西糖业集团红河制糖有限公司 | Semi-automatic intermittent honey sampling device |
| CN108548697A (en) * | 2018-05-07 | 2018-09-18 | 中国林业科学研究院 | Fall dust collector |
| CN108548697B (en) * | 2018-05-07 | 2024-01-02 | 中国林业科学研究院 | Dust fall collector |
| CN110608969A (en) * | 2019-09-18 | 2019-12-24 | 沈阳农业大学 | Dust fall collecting device and method |
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Application publication date: 20151014 |
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