CN101556219B - Dustfall collection method for separating impurities - Google Patents
Dustfall collection method for separating impurities Download PDFInfo
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- CN101556219B CN101556219B CN2009101132990A CN200910113299A CN101556219B CN 101556219 B CN101556219 B CN 101556219B CN 2009101132990 A CN2009101132990 A CN 2009101132990A CN 200910113299 A CN200910113299 A CN 200910113299A CN 101556219 B CN101556219 B CN 101556219B
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Abstract
The invention provides a dustfall collection method for separating impurities. By adopting the method, impurities can be filtered in the course of natural subsidence and collection, thereby improving the purity degree of a collected sample, preventing the sample from directly being exposed in gas flow, effectively restraining 'secondary dusting', improving dry-type sampling efficiency and effectively decreasing the water evaporation inside a collector simultaneously so that a wet-type collection can be also carried out in drought area; the dustfall sample is directly collected in an independent sample storage unit so that the sample is more convenient to be collected and the work load is reduced; the method has wide applicable areas in both drought and humid regions and can be widely applied in research in aspects of environment, ecology, aeolian landform, sand control works and the like.
Description
Technical field
The present invention relates to the acquisition method of atmospheric falling dust in the atmosphere quality monitoring.
Background technology
Existing dustfall collection method and collector exist that the dry type collecting efficiency is low, arid biogeographic zone can't carry out problems such as wet type collection, sample contaminating impurity and sample procedure be loaded down with trivial details.Container nature collecting method is to utilize action of gravity to make depositing dust be deposited on a kind of collection method in the container, and it is the universal method that present depositing dust is gathered near the natural subsidence process of depositing dust.Dustfall jar is all purpose instrument of depositing dust observation, is widely used in the atmosphere environment supervision, also be present new instrument---the important component part of depositing dust automatic collector.
According to the difference of dust collecting container internal fixation depositing dust medium, this method can be divided into dry method, wet method and 3 kinds of modes of glass bead method again.Because these 3 kinds of modes suppress the ability difference of " secondary plays dirt ", so their collection efficiency is also different, and the dust catching efficiency of wet type is the highest, the glass bead formula secondly, dry type is minimum.According to domestic and international research, the collecting efficiency of these three kinds of collection modes is certain proportionate relationship (also claiming conversion factor K), but the zone is different, and the K value is also different.Therefore, have only all parallel in several ways observation in each zone could obtain the K value, the depositing dust data between each zone just can be carried out science relatively.In addition, because evaporation potential is big, the wet type depositing dust is collected and can not be realized fully at arid biogeographic zone, and dry type is collected and had more operability.Therefore, existing dustfall jar has been unsuitable for the observation of arid biogeographic zone depositing dust to a certain extent, presses for a kind of novel depositing dust collector that improves dry type collection efficiency (suppress secondary and play dirt) or be convenient to the wet type collection of design.
Limited by housing structure, when shifting sample in the observation site, wind easily makes sample segment elegant, causes observing inaccurate.Therefore in actual use, all use clean dustfall jar to displace the dustfall jar of observing on the support, add a cover then and bring transfer sampling again behind the laboratory into.When the depositing dust observation station more for a long time, this method is just more loaded down with trivial details, inconvenient operation.In addition, existing acquisition method and dustfall jar also have the following disadvantages: be difficult to realize selective collection.Birds droppings, plant residue, insect corpse etc. often are mingled in the depositing dust sample, are difficult to separate, and cause sample contamination, have reduced the accuracy of data; Sample cleaning difficulty.When dry type was collected, rainwater or dew bonded together depositing dust sample and cylinder body, and on-the-spot cleaning is difficulty relatively.
In addition, domestic dustfall jar material is common plastics, glass or pottery, and vulnerability is strong, and the sun is exposed to the sun, strong wind, gravel, hail and factor such as artificial cause dustfall jar to damage easily, acquisition sequence is interrupted or error increases.
Above problem at existing acquisition method and collection equipment exist the invention provides a kind of dry type dust catching efficiency height, is suitable for that arid biogeographic zone carries out that wet type collection, removing impurities, sampling are convenient accurately, wide, the long-lived dustfall collection method of usage range and collector.
Summary of the invention
The object of the invention is, a kind of dustfall collection method of removing impurities is provided, adopt this method can in the natural subsidence collection process, carry out contaminant filter, the depositing dust sample directly is collected in independently in the sampling unit, thereby reduce the exposed amount of sample in air-flow, effectively suppress " secondary plays dirt ", effectively reduce evaporation capacity of moisture content in the collector simultaneously, arid biogeographic zone also can make the wet type collection.This method can improve sampling efficiency, and it is more convenient to sample, and effectively reduces workload.
The dustfall collection method of a kind of removing impurities of the present invention follows these steps to carry out:
A, funnel (2) is fixed on the depositing dust observation support, 20 order screen packs (6) is installed at funnel (2) place suitable for reading with geometrical clamp, again with funnel (2) and dust gathering arrester (1) by being threaded, screen pack (6) is clipped in the middle of both;
B, fixed support (5) is placed on protection bucket (3) bottom, at sample box (4) Zhong Jiashui, sample box (4) is embedded the middle part of fixed support (5), move protection bucket (3), make short neck of funnel (2) and sample box (4) socket, will protect barrel (3) and funnel (2) sidewall by being threaded;
C, run into rainyly, abundant precipitation is from suitable for reading the overflowing of sample box (4), enters in the protection bucket (3), discharges by the hole of protection bucket (3) bottom;
When d, sampling, integrated cover (1) is separated with funnel (2), remove the foreign material on the screen pack (6), depositing dust enters in the sample box (4) on flushing funnel (2) wall, will protect bucket (3) again and separate with funnel (2), take out sample box (4), add a cover, take back lab analysis and handle, change the fresh sample box again, re-assembly, continue to use.
Dust gathering arrester among the step a (1) and funnel (2) adopt Polyvinylchloride or glass-reinforced plastic material to make.
Protection bucket (3) among the step b adopts Polyvinylchloride or glass-reinforced plastic material to make, and screen pack (6) and fixed support (5) adopt stainless steel material to make.
At the problem of existing dustfall collection method and collector existence, technical solution scheme of the present invention is:
(1) in the natural subsidence collection process, promptly carries out contaminant filter, concrete grammar is: to collector design screen pack, avoid foreign material and depositing dust sample mix and the sample contamination that causes, improved sample purity and sampling precision, simultaneously also reduce the post-processed workload, improved work efficiency;
(2) reduce the exposed amount of sample in air-flow, effectively suppress " secondary plays dirt ", effectively reduce evaporation capacity of moisture content in the collector simultaneously, make arid biogeographic zone also can carry out the wet type collection, thereby raising sampling efficiency, concrete grammar is: collector bottom design funnel, the sample of deposition in time shift and are stored in other unit;
(3) the depositing dust sample directly is collected in independently in the sampling unit, makes sample collecting more convenient, reduces workload, and concrete grammar is: the depositing dust collector adopts split-type design, and sample is directly collected and is stored in the sample box.
(4) the good material of depositing dust collector usability as Polyvinylchloride, fiberglass, stainless steel, guarantees that collector is not fragile, durable in use.
Description of drawings
Fig. 1 is a structural representation of the present invention
Embodiment
Further describe below in conjunction with accompanying drawing, and provide embodiment
A kind of high efficient and convenient dustfall collection method of the present invention follows these steps to carry out:
A, funnel (2) is fixed on the depositing dust observation support with geometrical clamp, at funnel (2) place suitable for reading 20 order screen packs (6) are installed, are used to tackle foreign material, prevent to sneak in the depositing dust sample, again with funnel (2) and dust gathering arrester (1) by being threaded, screen pack (6) is clipped in the middle of both;
B, fixed support (5) is placed on protection bucket (3) bottom, at sample box (4) Zhong Jiashui, sample box (4) embeds the middle part of fixed support (5), and sample box (4) is cylindric wide-mouth plastics or vial, and bottleneck has external thread, can add a cover and seal, be used for collecting, holding the depositing dust sample, move protection bucket (3), make the short neck of funnel (2) just extend into sample box (4) middle and lower part, be convenient to installation and removal, will protect bucket (3) and be connected with funnel (2) sidewall thread mouth;
C, run into rainyly, abundant precipitation is from suitable for reading the overflowing of sample box (4), enters in the protection bucket (3), discharges by the aperture of protection bucket (3) bottom;
When d, sampling, integrated cover (1) is separated with funnel (2), remove the foreign material on the screen pack (6), depositing dust enters in the sample box (4) on flushing funnel (2) wall, will protect bucket (3) again and separate with funnel (2), takes out sample box (4) and adds a cover, taking back lab analysis handles, change the fresh sample box again, re-assembly, continue to use.
Dust gathering arrester (1) and funnel (2) protection bucket (3) adopt Polyvinylchloride or glass-reinforced plastic material to make, and screen pack (6) and fixed support (5) adopt stainless steel material to make.
Method of the present invention can be separated impurity such as plant residue, seed, birds droppings, the control sample contamination; Sample is directly collected in the sample box, only need carry the less sample box of volume in the sampling process, and needn't carry the very big depositing dust collector of volume, can effectively reduce labour intensity; Can improve depositing dust dry type collecting efficiency, make arid biogeographic zone also can carry out the collection of wet type depositing dust, can effectively improve the depositing dust collecting efficiency; Collector zone wide accommodation, humid region and arid biogeographic zone all can use, and material is durable in use, not cracky.
Claims (3)
1. the dustfall collection method of a removing impurities is characterized in that following these steps to carrying out:
A, with geometrical clamp funnel (2) is fixed on the depositing dust observation support, 20-32 order screen pack (6) is installed at place suitable for reading at funnel (2), funnel (2) is threaded with dust gathering arrester (1) employing again, and screen pack (6) is clipped in the middle of both;
B, fixed support (5) is placed on protection bucket (3) bottom, at sample box (4) Zhong Jiashui, sample box (4) is embedded the middle part of fixed support (5), move protection bucket (3), make short neck of funnel (2) and sample box (4) socket, will protect barrel (3) and funnel (2) sidewall by being threaded;
C, run into rainyly, abundant precipitation is from suitable for reading the overflowing of sample box (4), enters in the protection bucket (3), discharges by the hole of protection bucket (3) bottom;
When d, sampling, integrated cover (1) is separated with funnel (2), remove the foreign material on the screen pack (6), depositing dust enters in the sample box (4) on flushing funnel (2) wall, will protect bucket (3) again and separate with funnel (2), take out sample box (4), add a cover, take back lab analysis and handle, change the fresh sample box again, re-assembly, continue to use.
2. method according to claim 1 is characterized in that dust gathering arrester (1) and the funnel (2) among the step a adopts Polyvinylchloride or glass-reinforced plastic material to make.
3. method according to claim 1 is characterized in that the protection bucket (3) among the step b adopts Polyvinylchloride or glass-reinforced plastic material to make, and screen pack (6) and fixed support (5) adopt stainless steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101132990A CN101556219B (en) | 2009-04-21 | 2009-04-21 | Dustfall collection method for separating impurities |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101132990A CN101556219B (en) | 2009-04-21 | 2009-04-21 | Dustfall collection method for separating impurities |
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| CN101556219A CN101556219A (en) | 2009-10-14 |
| CN101556219B true CN101556219B (en) | 2011-01-12 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102305733A (en) * | 2011-08-05 | 2012-01-04 | 中国科学院寒区旱区环境与工程研究所 | Wild wind erosion prevention vertical dust-fall collector |
| CN104977187A (en) * | 2014-04-11 | 2015-10-14 | 中国科学院生态环境研究中心 | Timed and quantitative collection device used for atmospheric dust fall |
| CN106731181A (en) * | 2016-12-05 | 2017-05-31 | 无锡艾科瑞思产品设计与研究有限公司 | A kind of decontaminating column of extract solution direct injected |
| CN107870104B (en) * | 2017-11-07 | 2020-05-05 | 国网新疆电力有限公司电力科学研究院 | Device for collecting wind-blown sand in real time |
| CN111947707A (en) * | 2020-07-03 | 2020-11-17 | 中国气象局兰州干旱气象研究所 | Arid and semi-arid region ground surface water circulation full-component monitoring and identifying method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070013459A (en) * | 2005-07-26 | 2007-01-31 | 주식회사 포스코 | Dustfall collector |
| CN101013070A (en) * | 2007-01-31 | 2007-08-08 | 南开大学 | Rainfall dustfall time-interval multifunctional automatic sampler |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070013459A (en) * | 2005-07-26 | 2007-01-31 | 주식회사 포스코 | Dustfall collector |
| CN101013070A (en) * | 2007-01-31 | 2007-08-08 | 南开大学 | Rainfall dustfall time-interval multifunctional automatic sampler |
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