Some standard content:
1 Scope
National Standard of the People's Republic of China
Emission standard of air pollutants for coke ovens
Emissionstandard of airpollutantsforeokeovenGB16171-1996
This standard is difficult to distinguish between years and is intended for mechanical saccharification refining and sales furnaces The maximum allowable emission concentration of unorganized air pollutants, the maximum allowable emission concentration of air pollutants from non-mechanized coke ovens, and the maximum allowable emission amount of pollutants per ton of product. This standard applies to the emission management of existing mechanized coke ovens and non-mechanized coke ovens, as well as the environmental impact assessment and design of construction projects, work-related acceptance and emission management after completion and commissioning. 2 Referenced standards
The provisions contained in the following standards constitute provisions of this standard by being quoted in this standard. GB30951996 Ambient Air Quality Standard
GB/T16157-1996 Stationary Pollution Source Exhaust Application Particulate Matter Determination and Gaseous Pollutant Sampling Method 3 Definitions
This standard adopts the following definitions
3.1 Standard Status| |tt|| refers to the state when the gas temperature is 273K and the pressure is 101325Pa. The pollutant emission standards in this standard refer to the values ??in dry flue gas under standard conditions.
3.2 Non-mechanized coke oven
The non-mechanized coke oven referred to in this standard is: using washed coal as raw material and coal blending process: coking rate 270%: tight protection, internal and external fuel supply Hot flue gas is concentrated and the height of the coke oven smoke pattern is not less than 25m. 4 Technical content
4.1 Applicable areas of emission standards
4.1.1 This standard is divided into first, first and third-level standards, which correspond to the ambient air quality functional areas of GB3095 respectively: the first-level area is implemented First-level standard:
Second-category area hotline Second-level standard:
Three-category area implements third-level standard.
4.1.2 From the date of implementation of this standard, it is prohibited to build or expand mechanized coke ovens and non-mechanized refining furnaces in the first-class areas of GB3095: reconstruction projects shall not increase the amount of pollution measures.
4.2 Emission Standards
4.2.1 The maximum allowable emission concentration of air pollution from mechanized coke ovens and unorganized emissions that have been approved by the environmental impact report (form) before January 1, 1997 is as follows: Table 1 is implemented, and the National Environmental Protection Administration approved it on 1996-03-07 and implemented on 1997-01-01
standard carving forging
pollution
rescue standard value||tt| |Screening Objects
1.0
Table 1
General
华
Lovely Objects
(BSO)
0.25
GB161711996
Three questions on the existing mechanized coking air pollutant protection troubleshooting standards
Benzo
EaJSa
(B[aJP)| |tt||0,0010
pieces
3.5
wearable
RSO
0.80
and||tt ||[a麓
(B[]P
Q.0040
Title Mosquitoes
5.0
Three General
Installation
Dropables
(BSO)
1.20
mg/m
Benzene
[a]cell||tt| |(BEaJP)
0.0055
4.2.2
Mechanized coke ovens that have been approved by the environmental impact report (table) since January 1, 1997, unorganized emissions of air pollution The maximum allowable emission standards for pollutants are implemented in accordance with Table 2. Table 2
New mechanized refining furnace atmospheric pollutant emission standards Table 2
Standard level
Pollutants
Emission standard value| |tt||Banglawu
2. 5
Level 2
Gong
Soluble
CBSO)
0.60| | tt | tt||Level 3
Industry
Kewu
(BSO)
0.80
mg/m
Collection| ||[a]能
(B[a]P)
0.0040
4.2.3 Those that have been put into production before January 1, 1997 but have not implemented the environmental impact assessment system Mechanized coke ovens should determine the amount of unorganized atmospheric calcium contaminants discharged and the allowable discharge liquid level according to Table 1 or Table 2 based on the approval time of the supplementary environmental impact report (table).
4.2.4 For non-mechanized smelters approved before January 1, 1997, the environmental impact report (Table 2), the allowable emission concentration of atmospheric pollutants, the emission of pollutants per ton of product and the Ringer Mannheidity is implemented in accordance with Table 3. Table 3 Existing non-mechanized refining furnace air pollutant emission standards pollutants
Required particulate matter
Ozone bowl (S0)
and [ Flower
BLaJP
Ringelmann Blackness
Unit
mg/m (standard grams)
kg/t(&)||tt| |mg/m (mark)
kg/(m)
mg/m (mark)
kg/》
rice
Level 1| |tt||100
1:2
240
8.0
1.00
0,010
Emission standard value
Level 2
300
3. 5
500
5. 5
2.0
0.020
1|| tt||Level 3
350
4.0
600
6.5
3. 00
0. 025
4.2.5 For non-mechanized coke ovens that have passed the environmental impact report (table) approval since January 1, 1997, the maximum allowable emission levels of air pollutants, pollutant emissions per ton of product and Ringelmann blackness technical table 4 Hot Line, 4.2.6 Non-mechanized coke ovens that have been put into production before January 1, 1997 but have not implemented the environmental impact assessment system shall determine the air pollutants based on the time when the supplementary environmental impact report (form) is approved. The maximum allowable emission concentration, pollutant emission per ton of product and Ringelmann exhaustion shall be implemented in accordance with Table 3 or Table 4
4.3 Other provisions
Waste gas from mechanized coke oven protection shall not be discharged directly. Atmosphere, an automatic diffuser ignition device should be installed at the top of the exhaust pipe before January 1, 1998,
Pollutants
Particulate matter
Silicon dichloride ( 50,)
Extraction[]
BEaJP
Ringelmann illumination
5 monitoring
5.1 sampling point
GB16171-1996
Table 4 New non-mechanized coke oven air pollutant emission standards difficult units
mg/m (standard pot)
kg/t (coke)
mg/m (elevation)
kg/t (period)
mg/m (standard state)
kg/t (period)
General
250
3.0
400
4.5
1.50
0. 015
Emission standard building
Third floor||tt ||300
3. 5
450
5.0
2.00
0.020
The sampling point for unorganized emissions from mechanized coke ovens is located at Next to the rising pipe of the carbonization chamber in holes 1 to 4 on the side of the coal tower on the top of the coke oven. Non-mechanized coking environment should determine the fruit sampling point according to the provisions of GB/T16157. 5.2 Sampling frequency
5.2.1 The machine-cutting and refining furnace should be sampled under normal production conditions, using a medium flow sampler (without cover, without graded sampling head), and the continuous sampling time on the top of the coke oven For/times,
5.2.2 Non-mechanized refining furnaces should conduct sampling and ringer blackness measurement when 60% of the furnace holes are in the ignition and freezing stage. 5.3 Monitoring methods
The blue measurement method of Ringelmann degree in this standard can use the Ringelmann degree smoke concentration chart, the secondary smoke telescope and the monitoring method of photographic sewable objects (BSO), using Appendix AC: Gravimetric method for formulating dropable objects (BSO): The monitoring method of dioxide (SO) refers to the iodometric method or methyl buffered filtration method in the air and skin gas monitoring and analysis methods, and the recovery of hydrochloric acid to the final level. Spectrophotometry: For the monitoring method of benzo(a)amine, please refer to GBB971-88 air quality dust limit standard (BaP) measurement method, fluorescence spectrophotometry or air and gas monitoring and analysis method. Recommended high performance liquid chromatography method: After the national environmental protection department promulgates the corresponding method standards, the corresponding standards will be implemented.
5.4 Statistics
The coke cost output of non-mechanized coke ovens is based on the design output, and 6 standards are implemented
This standard is supervised and implemented by the environmental protection administrative department of the people's government at or above the county level. . A1 Principle
GB161711996
Appendix A
(standard appendix)
Measurement of benzosulfate (BSO) by quantitative method
make a certain volume The air passes through the glass fiber membrane with constant weight, and the substances in the air are blocked on the filter membrane. The membrane is placed in the fat extraction curtain, and benzene is used as a falling agent for extraction. According to the parameters before and after extraction, The difference between the film weight and the sampling volume can be used to calculate the concentration of objects that can be lifted and dropped. A2 reagent
A2.1 benzene: analytically pure.
A3 Instruments, Equipment and Materials
A3.1
A3.2
A3.3
A3.4
Medium flow Sampler: flow rate 50~150L/min, filter membrane diameter 80~100mm, analytical balance: sensitivity 0.01mg.
Ultra-fine glass fiber membrane
Fat suction device: volume 100mL,
A3.5
high temperature furnace.
A3.6
A3.7
A3.8
A3.9
Constant temperature seeking, Www.bzxZ.net
Dryer: built-in Desiccant
Surface blood.
Filter storage bags and storage boxes.
A3-10
Shishi leakage 0100mm
A3.11
You will get the best deal.
A3.12
Pump bottle.
A4 test conditions
A4.1 The balance chamber is placed in the balance room. The temperature of the balance chamber is between 20 and 25°C. The change of the thermostat is less than soil 3C, the relative humidity is less than 50%, and the change is small 5 %The temperature in the balance room should be maintained between 15 and 35°C, and the relative humidity should be less than 50%. A4.2 Place the glass fiber filter membrane into the high-tech furnace, burn it at 300 degrees for about 2 hours, take out the filter membrane, cool it to room temperature, and put it in the burner. A4.3 The membrane must be weighed before weighing. Keep the balance room level for 24 hours, and then quickly weigh it under the specified conditions. Take the membrane out of the balance room and weigh it within 30 seconds. The reading is accurate to 0.01 mg. Write down the number and weight W of the filter membrane. , put the special filter flatly in a smooth and clean paper bag, and then put it in the box for later use. Do not bend or fold the filter membrane before sampling. A5 Measurement Steps
A5.1 Fruit Sample
a) Before sampling, take out the filter membrane from the box and install it on the sampling head, and install the fruit sampler. b) Start the sampler and adjust the value to 100~120L/min. c) After 5 minutes of sampling and 5 minutes before the end of sampling, record the atmospheric pressure, temperature and flow once each. d) Generally, if sampling exceeds 4 hours, close the sampler and record the sampling time. . ) After sampling, carefully remove the filter membrane with a button so that the sampling surface faces inward, fold it in half, put it in an original paper bag and store it in a box. When collecting the sampled filter membrane, attention should be paid to whether the membrane is physically damaged and whether there is gas during the sampling process. If similar phenomena are found, the sample filter membrane should be repaired.
Determination of A5.2 sample
GB161711996
a) Place the sampled filter membrane in the balancing chamber, balance for 24 hours, and then quickly weigh W1. The weighing should not exceed 30 seconds. b) Fold the filter membrane (to prevent particles from leaking into the extraction agent during extraction), and put it into the extraction hub of a clean and dry fat extractor. Mark the corresponding number.
e) Pour G0mL benzene into the steam bottle of the fat extractor, install the extraction condenser and cooler, place the fat extractor on 90C constant temperature water, heat to reflux, and turn on the cooling For water, the first full flow starts counting, and the extraction takes 6 hours. d) Stop heating, remove the filter membrane when cold, place it on a clean surface, mark it with the corresponding number, and place it in a fume hood. After the extract is evaporated, place it in a balancing room.
e) If it is found that there is solvent dissolved into the benzene solvent, use a Buchner funnel to deposit the residue in the solvent on the filter membrane and into the residual flow. The smart stocks are balanced in the balance room for 24 hours and then decelerated and weighed W, which is completed within 30 seconds. A6 Calculation
Benzoyl dye degree (mg/m)
In the formula, W, - the weight of the filter membrane after sampling, mg+W. The weight of the filter membrane after extraction, mg:||tt ||V. Sampling volume under standard state, m
W.-W.
Va
PX273
V.=VX101325x(273+)||tt| |In the formula, V-sampling volume, m
P pressure during sampling, Pa
average temperature during sampling, ℃
(A1)
(A2)
1. Fruit sample
a) Before sampling, take out the filter membrane from the box and install it on the sampling head, then use the sampler. b) Start the sampler and adjust the value to 100~120L/min. c) After 5 minutes of sampling and 5 minutes before the end of sampling, record the atmospheric pressure, temperature and flow once each. d) Generally, if sampling exceeds 4 hours, close the sampler and record the sampling time. . ) After sampling, carefully remove the filter membrane with a button so that the sampling surface faces inward, fold it in half, put it in an original paper bag and store it in a box. When collecting the sampled filter membrane, attention should be paid to whether the membrane is physically damaged and whether there is gas during the sampling process. If similar phenomena are found, the sample filter membrane should be repaired.
Determination of A5.2 sample
GB161711996
a) Place the sampled filter membrane in the balancing chamber, balance for 24 hours, and then quickly weigh W1. The weighing should not exceed 30 seconds. b) Fold the filter membrane (to prevent particles from leaking into the extraction agent during extraction), and put it into the extraction needle of a clean and dry fat extractor. Mark the corresponding number.
e) Pour G0mL benzene into the steam bottle of the fat extractor, install the extraction condenser and cooler, place the fat extractor on 90C constant temperature water, heat to reflux, and turn on the cooling For water, the first full flow starts counting, and the extraction takes 6 hours. d) Stop heating, remove the filter membrane when cold, place it on a clean surface, mark it with the corresponding number, and place it in a fume hood. After the extract is evaporated, place it in a balancing room.
e) If it is found that there is solvent dissolved into the benzene solvent, use a Buchner funnel to deposit the residue in the solvent on the filter membrane and into the residual flow. The smart stocks are balanced in the balance room for 24 hours and then decelerated and weighed W, which is completed within 30 seconds. A6 Calculation
Benzoyl dye degree (mg/m)
In the formula, W, - the weight of the filter membrane after sampling, mg+W. The weight of the filter membrane after extraction, mg:||tt ||V. Sampling volume under standard state, m
W.-W.
Va
PX273
V.=VX101325x(273+)||tt| |In the formula, V-sampling volume, m
P pressure during sampling, Pa
average temperature during sampling, ℃
(A1)
(A2)
1. Fruit sample
a) Before sampling, take out the filter membrane from the box and install it on the sampling head, then use the sampler. b) Start the sampler and adjust the value to 100~120L/min. c) After 5 minutes of sampling and 5 minutes before the end of sampling, record the atmospheric pressure, temperature and flow once each. d) Generally, if sampling exceeds 4 hours, close the sampler and record the sampling time. . ) After sampling, carefully remove the filter membrane with a button so that the sampling surface faces inward, fold it in half, put it in an original paper bag and store it in a box. When collecting the sampled filter membrane, attention should be paid to whether the membrane is physically damaged and whether there is gas during the sampling process. If similar phenomena are found, the sample filter membrane should be repaired.
Determination of A5.2 sample
GB161711996
a) Place the sampled filter membrane in the balancing chamber, balance for 24 hours, and then quickly weigh W1. The weighing should not exceed 30 seconds. b) Fold the filter membrane (to prevent particles from leaking into the extraction agent during extraction), and put it into the extraction hub of a clean and dry fat extractor. Mark the corresponding number.
e) Pour G0mL benzene into the steam bottle of the fat extractor, install the extraction condenser and cooler, place the fat extractor on 90C constant temperature water, heat to reflux, and turn on the cooling For water, the first full flow starts counting, and the extraction takes 6 hours. d) Stop heating, remove the filter membrane when cold, place it on a clean surface, mark it with the corresponding number, and place it in a fume hood. After the extract is evaporated, place it in a balancing room.
e) If it is found that there is solvent dissolved into the benzene solvent, use a Buchner funnel to pour the residual solvent on the filter membrane and into the residual flow. The smart stocks are balanced in the balance room for 24 hours and then decelerated and weighed W, which is completed within 30 seconds. A6 Calculation
Benzoyl dye degree (mg/m)
In the formula, W, - the weight of the filter membrane after sampling, mg+W. The weight of the filter membrane after extraction, mg:||tt ||V. Sampling volume under standard state, m
W.-W.
Va
PX273
V.=VX101325x(273+)||tt| |In the formula, V-sampling volume, m
P pressure during sampling, Pa
average temperature during sampling, ℃
(A1)
(A2)
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