CN102003985B - Method for measuring inorganization discharge amount of dust in stock ground - Google Patents
Method for measuring inorganization discharge amount of dust in stock ground Download PDFInfo
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- CN102003985B CN102003985B CN2009101948354A CN200910194835A CN102003985B CN 102003985 B CN102003985 B CN 102003985B CN 2009101948354 A CN2009101948354 A CN 2009101948354A CN 200910194835 A CN200910194835 A CN 200910194835A CN 102003985 B CN102003985 B CN 102003985B
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Abstract
The invention discloses a method for measuring inorganization discharge amount of dust in a stock ground. The method comprises the following steps: step 1, determining the bottom area of the stock ground, the dust moving effected height of the stock ground and the shape of the stock ground; step 2, determining the wind speed of a windward in the prevailing wind direction and the projected length of the windward; step 3, determining the flow-in amount of the dust; step 4, measuring dust deposit amount in unit area to obtain the dust deposit amount; step 5, measuring and calculating a difference value of suspended granular dust; step 6, obtaining dust flow-out amount; and step 7, obtaining the dust generating amount according to the equilibrium relation that the dust flow-in amount + the dust generating amount = the dust flow-out amount + the dust deposit amount + the difference value of suspended granular dust. By means of the invention, the dust generating amount in the stock ground is obtained by measuring the amount of dust flowing in and out from the stock ground in a certain time as well as the difference value of suspended granular dust and dust deposit amount in the stock ground according to the equilibrium relation among the values. The invention has the advantages that the measuring method is simple and the results are accurate and reliable, thus providing guarantee for national environmental protection department to evaluate inorganization discharge amount.
Description
Technical field
The present invention relates to the environmental pollution field of measurement, relate in particular to a kind of dust uncontrollable discharge measuring method.
Background technology
Stock ground (or stockyard) ties up to stacks starting material, material or other diffusing shape material confession turnovers, storage on the ward, in material loading, unloading process and storage process, can produce the inorganization airborne dust, and surrounding enviroment are polluted." discharge standard of air pollutants " (GB16297-1996) stipulated inorganization Pai Yuan control point concentration limit from the atmosphere pollution uncontrollable discharge to the angle of environmental impact; " the atmosphere pollution uncontrollable discharge monitoring technology guide rule " implemented March calendar year 2001 (HJ/T55-2000) then made regulation to the measuring method of the method to set up of control point, uncontrollable discharge source, monitoring meteorological condition, monitoring result etc.; These two standards are intended to the concentration of uncontrollable discharge is limited, but do not relate to the measurement and the control of uncontrollable discharge amount.Country is aspect the statistics and verification of pollutant discharge amount, and main emphasis is in quantitative statistics of discharging in a organized way and verification to the closed conduct space; Uncontrollable discharge is then mainly controlled indirectly through concentration, uncontrollable discharge concentration, the post concentration standard of pollutant in the environment, but its discharge capacity is not then added up and verified.The reason that causes this situation be still do not have at present a kind of not only relatively accurate reliably, but also the measuring method of being convenient to measure statistics can be used for the uncontrollable discharge quantitative statistics; In " in industrial pollution deposits yields and the emission factor handbook of Technology Standards Division of State Bueau of Environmental Protection establishment; When each the pollutant generation added up and discharge capacity; Unmeasured inorganization airborne dust is not included in the scope of statistics of data, does not participate in the product dirt of product and the statistics of blowdown coefficient.
Though the measuring method of atmosphere pollution uncontrollable discharge amount has element balance method, wind tunnel simulation test method(s), loss of material to account method etc. at present; Also there are some units aspect uncontrollable discharge, also to do some exploration work; But this is to carry out to certain specific discharging object mostly; Result who draws or conclusion generally only are applicable to also that the given row under special time, specific region and the specified conditions is rivals in a contest and resemble, and error is very big.As as far as the stock ground, if adopt loss of material balancing a survey method because the loss amount of material (can be similar to think equal the inorganization dust emission) to account for the ratio of inventory very little, the error of weighing equipment in addition is so statistical value that draws at last and actual value greatly differ from each other.Because uncontrollable discharge belongs to multi-source and disperses random discharging, the kind of emission source, character, conditions of discharge vary, and are difficult to calculate exactly its discharge capacity.In addition, for the uncontrollable discharge amount statistics of dust,, generally all need the measuring condition of many measurement parameters and many supposition though some theoretical measuring methods are arranged at present; Even drawn theoretical measurement result, also still need carry out various artificial corrections, some parameter is carried out various artificial adjustment.Therefore, this type theoretical method still belongs to " empirical estimating ", and its relative error and absolute error are all bigger.
The dust uncontrollable discharge in stock ground belongs to the random dual disposal in complicated multiaspect source, multiple spot source, receives influence of various factors such as stockpiling characteristic, heap material extracting operation mode, meteorological condition; Measure its uncontrollable discharge amount with theoretical method; Not only workload is big, and it is big artificially to revise workload, the more important thing is that this method assumed conditions is too many; Result's reliability and accuracy are smudgy, and operability is not strong.
Summary of the invention
Technical matters to be solved by this invention provides a kind of stockpile field dust uncontrollable discharge measuring method; The difference of dust inflow, outflow, deposition and dust suspension through in-site measurement; Finally obtain the growing amount of dust, realized accurate measurement the uncontrollable discharge amount.
A kind of stock ground dust uncontrollable discharge measuring method may further comprise the steps:
Step 1, confirm the space of stock ground dust migration influence, and install and measure equipment with inside around in the space, confirm the stock ground floorage A, the stock ground dust moves influences height H and stock ground shape;
Step 2, measure cardinal wind windward side wind speed v on the stock ground, and obtain windward side, stock ground projected length L according to the stock ground shape;
Step 3, measurement stock ground upwind suspended particulate substance mean concentration Co, selected test interval a is a*H*L*v*Co through measuring the dust influx;
Dust deposit amount on step 4, the measurement stock ground, through measuring unit area dust deposit amount N in the stock ground, obtaining the dust deposit amount is a*A*N/30, A is the stock ground floorage;
Overall suspended pellet concentration C i in stock ground when step 5, record test beginning
1Overall suspended pellet concentration C i in the stock ground during with EOT
2, obtaining space, stock ground inner suspension granule dust difference is A*H* (Ci
2-Ci
1);
Step 6, according to average suspended particulate matter concentration Ci in the stock ground during the whole measurement, obtaining the dust discharge is a*H*L*v*Ci;
The Dust Capacity into and out of the stock ground is identical within a certain period of time for step 7, space, whole stock ground, and according to dust inflow+dust generation=dust outflow+dust deposit+suspended particle dust difference, arrangement obtains
Dust generation=a*k
1* H*L*v* (Ci-Co)+a*A*N/30+k
2* A*H* (Ci
2-Ci
1)
K1: reduction coefficient, get 3600x24x10
-9=0.0000864
K2: the unit conversion coefficient, get 1x10
-9
In the described step 1, confirm the space of stock ground dust migration influence, the space is chosen to be cubic space, and some anemometers are installed in this space all around.
In the described step 2, in stock ground form parameter input computing machine,, obtain windward side, stock ground projected length L automatically according to the wind direction that measures.
The dust migration influences the some suspended particulates sampling thiefs measurements of the inside and outside installation in space suspended particulate matter concentration in the stock ground.
The dust migration of described stock ground influences puts the control of dust cylinder in the space, measure unit area dust deposit amount N in the stock ground.
Measuring method of the present invention is with the space of stock ground as a sealing; Through measuring the Dust Capacity that flows to, flow out the stock ground in a period of time and stock ground inner suspension granule dust difference, deposition Dust Capacity; Calculate dust generation (also being the uncontrollable discharge amount) in the stock ground according to the equilibrium relation between them; Measuring method is simple, and the result partly estimates uncontrollable discharge for national environmental protection assurance is provided accurately and reliably.
Description of drawings
Fig. 1 is a stockpile synoptic diagram;
Fig. 2 is for confirming the space synoptic diagram of stock ground dust migration influence.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's statement, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
A kind of stock ground dust uncontrollable discharge measuring method may further comprise the steps:
Step 1, confirm the space of stock ground dust migration influence, and with inner some anemometers are installed around in the space, and measure floorage A, the migration of stock ground dust of confirming the stock ground through chi and influence height H and stock ground shape; Anemometer model FYF-1 type, measuring wind speed scope: 0～30m/s, air velocity transducer start wind speed: 0.8m/s, measuring wind speed precision :+/-(m/s (V actual wind speed) of 0.3+0.03 * V);
Step 2, the form parameter in stock ground input computing machine, measure cardinal wind windward side wind speed v on the stock ground, computing machine obtains windward side, stock ground projected length L automatically according to wind direction and stock ground shape;
Step 3, dust migration influence the some suspended particulates sampling thiefs measurements of the inside and outside installation in space suspended particulate matter concentration in the stock ground; Measure stock ground upwind suspended particulate substance mean concentration Co, selected test interval a is a*H*L*v*Co through measuring the dust influx; The suspended particulates sampling thief is selected TH-150 series, sampling flow range of adjustment: 80L/min～130L/min, accuracy: ± 2.5% for use; Gas sampling flow range: 0.1～1L/min, accuracy: ± 2.5%, discharge stability: during 100L/min, when voltage 198V～242V fluctuation, resistance changes at 3～8kPa, and the flow relative error is less than 3%, accuracy of timekeeping: 1 ‰/24h;
Step 4, the migration of described stock ground dust influence and put the control of dust cylinder in the space, measure the dust deposit amount on the stock ground, and through measuring unit area dust deposit amount N in the stock ground, obtaining the dust deposit amount is a*A*N/30, and A is the stock ground floorage;
Overall suspended pellet concentration C i in stock ground when step 5, record test beginning
1Overall suspended pellet concentration C i in the stock ground during with EOT
2, obtaining space, stock ground inner suspension granule dust difference is A*H* (Ci
2-Ci
1);
Step 6, according to average suspended particulate matter concentration Ci in the stock ground during the whole measurement, obtaining the dust discharge is a*H*L*v*Ci;
The Dust Capacity into and out of the stock ground is identical within a certain period of time for step 7, space, whole stock ground, and according to dust inflow+dust generation=dust outflow+dust deposit+suspended particle dust difference, arrangement obtains
Dust generation=a*k
1* H*L*v* (Ci-Co)+a*A*N/30+k
2* A*H* (Ci
2-Ci
1)
K1: reduction coefficient, get 3600x24x10
-9=0.0000864
K2: the unit conversion coefficient, get 1x10
-9
In the aforementioned calculation formula,
A: stock ground area km
2
L: windward side, stock ground projected length m
H: stock ground dust migration influence height m
Co: measure stock ground upwind suspended particulate substance mean concentration mg/m
3
Ci: average suspended particulate matter concentration mg/m in the stock ground during the measurement
3
Ci
1: total suspended particles substrate concentration mg/m in the stock ground during test beginning
3
Ci
2: total suspended particles substrate concentration mg/m in stock ground during EOT
3
N: unit area dust deposit amount t/km in the stock ground
2.mon
V: cardinal wind windward side wind speed m/s
A: test interval day
Claims (3)
1. a stock ground dust uncontrollable discharge measuring method is characterized in that, may further comprise the steps:
Step 1, confirm the space of stock ground dust migration influence, and install and measure equipment with inside around in the space, confirm the stock ground floorage A, the stock ground dust moves influences height H and stock ground shape;
Step 2, measure cardinal wind windward side wind speed v on the stock ground, and obtain windward side, stock ground projected length L according to the stock ground shape;
Step 3, measurement stock ground upwind suspended particulate substance mean concentration Co, selected test interval a is a*H*L*v*Co through measuring the dust influx;
Dust deposit amount on step 4, the measurement stock ground, through measuring unit area dust deposit amount N in the stock ground, obtaining the dust deposit amount is a*A*N/30, A is the stock ground floorage;
Overall suspended pellet concentration C i in stock ground when step 5, record test beginning
1Overall suspended pellet concentration C i in the stock ground during with EOT
2, obtaining space, stock ground inner suspension granule dust difference is A*H* (Ci
2-Ci
1);
Step 6, according to average suspended particulate matter concentration Ci in the stock ground during the whole measurement, obtaining the dust discharge is a*H*L*v*Ci;
The Dust Capacity into and out of the stock ground is identical within a certain period of time for step 7, space, whole stock ground, and according to dust inflow+dust uncontrollable discharge amount=dust outflow+dust deposit+suspended particle dust difference, arrangement obtains
Dust uncontrollable discharge amount=a*k
1* H*L*v* (Ci-Co)+a*A*N/30+k
2* A*H* (Ci
2-Ci
1)
K1: reduction coefficient, get 3600x24x10
-9=0.0000864
K2: the unit conversion coefficient, get 1x10
-9
2. stock ground as claimed in claim 1 dust uncontrollable discharge measuring method is characterized in that: in the described step 1, confirm the space of stock ground dust migration influence, the space is chosen to be cubic space, and some anemometers are installed in this space all around.
3. stock ground as claimed in claim 1 dust uncontrollable discharge measuring method is characterized in that: in the described step 2, in stock ground form parameter input computing machine, according to the wind direction that measures, obtain windward side, stock ground projected length L automatically.
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| CN2009101948354A CN102003985B (en) | 2009-08-31 | 2009-08-31 | Method for measuring inorganization discharge amount of dust in stock ground |
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| CN2009101948354A CN102003985B (en) | 2009-08-31 | 2009-08-31 | Method for measuring inorganization discharge amount of dust in stock ground |
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| CN102003985B true CN102003985B (en) | 2012-05-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107255607B (en) * | 2017-06-14 | 2019-11-12 | 中国科学院合肥物质科学研究院 | A kind of dust migration experimental provision and method |
| CN108053330B (en) * | 2017-12-08 | 2020-10-27 | 山东派特菲环境科技有限公司 | Method and system for calculating unorganized emission of pollutants |
| CN109858144B (en) * | 2019-01-29 | 2020-06-05 | 江苏啸峰环保科技股份有限公司 | Method for constructing emission calculation model of dust source and method for calculating emission of dust |
| CN110180276A (en) * | 2019-07-05 | 2019-08-30 | 中国化学工业桂林工程有限公司 | The dual nested refining glue exhaust gas concentration collection device of one kind and its collection method |
| CN112529734A (en) * | 2020-12-23 | 2021-03-19 | 柏美迪康环境科技（上海）股份有限公司 | Method and system for monitoring unorganized emission and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3595078A (en) * | 1967-09-06 | 1971-07-27 | Maurice Sidney Beck | Powder flow measurement |
| US3906780A (en) * | 1972-10-12 | 1975-09-23 | Mobil Oil Corp | Particulate material detection means |
| CN1580734A (en) * | 2003-08-14 | 2005-02-16 | 中国科学院寒区旱区环境与工程研究所 | Fine sand level flux measuring device |
| CN1587984A (en) * | 2004-10-19 | 2005-03-02 | 天津大学 | Monitoring method and device for laser phase Doppler powder dust particle |
-
2009
- 2009-08-31 CN CN2009101948354A patent/CN102003985B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3595078A (en) * | 1967-09-06 | 1971-07-27 | Maurice Sidney Beck | Powder flow measurement |
| US3906780A (en) * | 1972-10-12 | 1975-09-23 | Mobil Oil Corp | Particulate material detection means |
| CN1580734A (en) * | 2003-08-14 | 2005-02-16 | 中国科学院寒区旱区环境与工程研究所 | Fine sand level flux measuring device |
| CN1587984A (en) * | 2004-10-19 | 2005-03-02 | 天津大学 | Monitoring method and device for laser phase Doppler powder dust particle |
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