HJ 886-2018Technical guidelines of accounting method for pollution source intensity cement industry (English PDF)

4.1 Accounting procedures

The strong source accounting procedures include pollution source identification and pollutant determination, accounting methods and parameter selection, source strength accounting, the results of the calculation, etc., see HJ 884 for details. Identification of pollution sources and determination of pollutants should also comply with HJ 2.1, HJ 2.2, HJ/T 2.3, HJ 2.4 and other technical guidelines and GB 4915, GB 8978, GB 12348 and other relevant emission standards.

The discharge of pollutants should include both normal and abnormal conditions (including cement kiln start, stop, etc.).

Emissions.

4.2 Principles of accounting methods

4.2.1 General principles

The accounting methods include the actual measurement method, the analogy method, the material balance algorithm and the sewage coefficient method. The accounting method and the order of selection are shown in the table.

3 Table 1 Source strength accounting method selection list enterprise Types of surroundings Major pollution factors Accounting method and prioritization New (reform, expansion) Engineering pollution source Existing engineering Source of pollution cement (cooked Raw material Production enterprise Exhaust gas Cement kiln and kiln waste heat System Particulate matter, nitrogen oxides (in terms of NO2), fluoride (to Total F count) Analogy method 2. Sewage coefficient method 1. The actual measurement method;

2. Analogy a

SO2

1. Material balance algorithm;

2. Analogy method;

3. Sewage coefficient method 1. The actual measurement method;

2. Analogy method a;

3. Material balance algorithm Ammonia b analogy method 1. actual measurement method; 2. analogy method a Mercury and its compounds 1. Material balance algorithm; 2. Analogy method 1. The actual measurement method;

2. Analogy method a;

3. Material balance algorithm Coal mill, cooling machine, crushing Machine, mill, packaging machine and Other ventilation production equipment Particulate matter 1. analogy method; 2. blowdown coefficient method 1. The actual measurement method;

2. Analogy a

Dryer, drying mill

Particulate matter, nitrogen oxides NO2 meter) c analogy 1. The actual measurement method;

2. Analogy a

SO2 c 1. Material balance algorithm; 2. Analogy method 1. The actual measurement method;

2. Analogy method a;

3. Material balance algorithm Unorganized source particulate matter, ammonia b analogy or other feasible methods Analogy or other Row method Waste Equipment cooling sewage, surplus Thermal power boiler circulating cooling Sewage, machine repair, etc.

Production wastewater, domestic sewage exhaustion hole Chemical oxygen demand (CODCr), Ammonia nitrogen, suspended solids (SS), five Daily biochemical oxygen demand (BOD5), Petroleum, fluoride, total phosphorus, etc.

Analogy method

2. Sewage coefficient method 1. The actual measurement method;

2. Analogy a

noise

Mill, fan, broken,

Air compressor, waste heat power generation system System equipment Noise level analogy method 1. actual measurement method; 2. analogy method a solid waste Cement kiln, dust collector, etc.

Solid waste analogy method cement Grinding Exhaust gas Crusher, mill, packaging Machine and other ventilation production facilities Particulate matter 1. analogy method; 2. fouling coefficient method 1. actual measurement method;

2. Analogy a

Dryer

Particulate matter, nitrogen oxides NO2 meter) c analogy SO2 c 1. Material balance algorithm;

2. Analogy

1. The actual measurement method;

2. Analogy method a;

3. Material balance algorithm Unorganized source particle analogy or other feasible methods Analogy or other Row method Waste Equipment cooling sewage, machine Repairing auxiliary production wastewater, Domestic sewage discharge Chemical oxygen demand (CODCr), Ammonia nitrogen, suspended solids (SS), five Daily biochemical oxygen demand (BOD5), Petroleum, fluoride, total phosphorus, etc.

Analogy method

2. Sewage coefficient method 1. The actual measurement method;

2. Analogy a

Noise level analogy method for noise cement mill, crusher, fan, air compressor, etc.

1. The actual measurement method;

2. Analogy a

4 continued

enterprise

Types of

surroundings

Major pollution factors Source strength accounting method and prioritization New (reconstruction and expansion) construction Source of pollution Existing engineering Source of pollution cement Grinding solid Waste waste mill, dust collector and other equipment solid waste analogy method a When the existing project pollution sources are strongly accounted for, when there are multiple pollution sources of the same type in the same enterprise, other pollution sources can be compared with the same type of pollution of the enterprise.

The source of the measured pollution source data is strong.

b is suitable for the use of ammonia, urea and other ammonia-containing substances as a reducing agent to remove nitrogen oxides from the flue gas.

c Suitable for drying equipment with independent heat sources.

4.2.2 Exhaust gas

a) New (reconstruction, expansion) construction project pollution source Particulate matter, nitrogen oxides and fluorides are preferably accounted for by the analogy method, followed by the discharge coefficient method.

Sulfur dioxide is preferentially calculated by the material balance algorithm, followed by the analogy method and the discharge coefficient method.

Mercury and its compounds are preferentially accounted for using the material balance algorithm, followed by an analogy method.

Ammonia is calculated using an analogy method.

Exhaust gas unorganized source strength is accounted for by analogy or other feasible methods.

b) Existing engineering pollution sources the organized exhaust gas is preferably measured by the actual method, followed by the analogy method and the material balance algorithm. When using the actual method to calculate the source strength, Automatic monitoring of pollution factors for HJ 848 and pollutant discharge units, only effective automatic supervision the measured data is used for accounting; the pollution factor for HJ 848 and the pollutant discharge unit of the sewage unit is not required to be automatically monitored.

Automatic monitoring data is used first, followed by manual monitoring of data.

Exhaust gas unorganized source strength is accounted for by analogy or other feasible methods.

4.2.3 Waste water

a) New (reconstruction, expansion) construction project pollution source the source of pollution is preferentially calculated by analogy method, and secondly by the discharge coefficient method.

b) Existing engineering pollution sources the source of pollution is preferred to use the actual measurement method, followed by the analogy method. When using the actual method to calculate the source strength, the HJ 848 and Sewage discharge permit for sewage disposal units requires automatic monitoring of pollution factors, and only effective automatic monitoring data can be used for nuclear for the HJ 848 and the pollutant discharge unit of the pollutant discharge unit, the pollution factor that does not require automatic monitoring is preferred.

The data was measured, followed by manual monitoring of the data.

4.2.4 Noise

a) New (reconstruction, expansion) construction project pollution source the source of pollution is strongly calculated by analogy.

b) Existing engineering pollution sources

5 The source of pollution is preferred to use the actual measurement method, followed by the analogy method.

4.2.5 Solid waste

a) New (reconstruction, expansion) construction project pollution source the source of pollution is strongly calculated by analogy.

b) Existing engineering pollution sources the strong source of pollution is calculated by the actual measurement method.

5.1 Analogy

The emission of pollutants from the pollution sources of new (reconstruction and expansion) projects can be compared with the scale of their production lines, processes and pollution.

Control measures, etc., and the measured data of pollution sources with the same or similar characteristics of raw materials, fuel components, and management levels Accounting.

The analogy method is applicable to various pollution factors (particulate matter, SO2, NOx, fluoride, mercury) produced in the cement production process.

And its compounds, ammonia).

5.2 Material Balance Algorithm

5.2.1 General regulations

The material balance algorithm quantitatively analyzes the changes in materials used in the production process according to the law of conservation of mass quality.

That is, in the production process, the total amount of materials put into the system is equal to the sum of the amount of product produced and the amount of material lost.

The material balance algorithm is applicable to SO2, mercury and its compounds produced in the cement production process.

For the new (reconstruction, expansion) construction project pollution source strong accounting parameters, the relevant data in the design data may be obtained; for the existing project the strong source accounting parameters of the pollution source should take the relevant data in the test report during the accounting period and be a weighted average based on the usage.

5.2.2 Material accounting method for SO2 in cement kiln and kiln waste heat utilization system

5.2.2.1 The presence of sulfur in raw materials is mainly organic sulfur, sulfide sulfur and sulfate sulfur, among which organic sulfur and sulfide Sulfur is easily volatilized or decomposed in the preheater. The total sulfur and sulfate sulfur in the raw materials should be measured, and the organic sulfur and Sulfide sulfur content.

5.2.2.2 When the content of organic sulfur and sulfide sulfur in the raw materials is <=0.15%, the cement kiln and the kiln waste heat utilization system chimney SO2 the source strength is calculated according to equation (5-1).

100100) 100100 (2

0SO2

iGGD (5-1)

In the formula.

2SOD - SO2 emissions during the accounting period, t;

2-S generates a conversion factor for SO2;

G0-the amount of coal consumed during the accounting period, t;

The i-th material consumption in the 6Gi-accounting period, t;

0 - the sulfur content of coal (in terms of elemental S), %;

I - the sulfur content of the i-th material (in terms of elemental S), %;

1 -S The coefficient of generating SO2, %, according to the characteristics of each region or each item, generally 95;

2 -SO2 is discharged into the atmospheric coefficient, %, according to the characteristics of each region or each project, the new dry method the rotary kiln is generally available for 2.

5.2.2.3 When the content of organic sulfur and sulfide sulfur in the raw materials is >0.15%, the cement kiln and the kiln waste heat utilization system SO2 source Strongly calculated according to formula (5-2).

== 100

-1100100100100) 100100 (2 SOn 1i 1i 0SO i i GGGD (5-2) in the formula.

2SOD - SO2 emissions during the accounting period, t;

2-S generates a conversion factor for SO2;

G0-the amount of coal consumed during the accounting period, t;

The i-th material consumption during the Gi-accounting period, t;

0 - the sulfur content of coal (in terms of elemental S), %;

I-sulfate sulphur content of the i-th material (in terms of elemental S), %;

1 -S The coefficient of generating SO2, %, according to the characteristics of each region or each item, generally 95;

2 -SO2 is discharged into the atmospheric coefficient, %, according to the characteristics of each region or each project, the new dry method the rotary kiln generally takes 2;

I - the content of organic sulfur and sulfide sulfur in the i-th material (in terms of elemental S), %;

2SO - Purification efficiency of desulfurization facilities, %.

5.2.3 The source of mercury and its compounds in the cement kiln and kiln waste heat utilization system is calculated according to formula (5-3).

Cooked i

00Hg 10]100)([ ..-...= = GGGD i (5-3) where. HgD - emissions of mercury and its compounds during the accounting period, t;

G0-the amount of coal consumed during the accounting period, t;

0 - the content of mercury and its compounds in coal (in Hg), mg/kg;

iG - the amount of the i-th material in the accounting period, t;

I - the content of mercury and its compounds in the i-th material (in terms of Hg), mg/kg;

- the conversion rate of mercury and its compounds, %, take 100;

Cooked c stock during the G-accounting period, t;

Cooked - The content of mercury and its compounds in clinker (in Hg), mg/kg.

75.3 Measurement method

5.3.1 Using automatic monitoring system data accounting the exhaust gas pollution source that installs the automatic monitoring system and is connected with the environmental protection department shall adopt effective online supervision in compliance with relevant regulations.

The measured data accounts for the source of the exhaust gas pollutants.

The source of exhaust gas pollutants is calculated according to formula (5-4).

)10( 9

xx= iin

qD (5-4)

Where. a certain pollutant discharge during the D-accounting period, t;

I - the measured mass concentration of the first hour of a certain pollutant in a standard state, mg/m3;

Qi-the first hour of exhaust emissions in the standard state, m3/h;

The discharge time of pollutants during the n-accounting period, h.

The use of automatic monitoring data to calculate the source of exhaust gas pollutants should be calculated using all hourly average data during the accounting period.

Count. Automatic monitoring system measurement and installation location, daily operation management, comparison monitoring, calibration and inspection, data review and the treatment shall comply with the requirements of HJ 75, HJ 76, HJ/T 373.

When using automatic monitoring data to calculate the source of exhaust gas pollutants, the operating conditions of the production equipment during the monitoring period should also be recorded simultaneously.

Parameters such as material dosage, fuel consumption, temperature, pressure, fan air volume, motor current, etc.

5.3.2 Using manual monitoring data accounting the automatic monitoring system fails to monitor the pollutants or the pollution sources and pollutants that are not installed in the automatic monitoring system.

Manual monitoring data such as self-monitoring by the measuring and discharging units, and accounting for the source of pollutants. Use manual monitoring data to calculate the source of pollutants Strong, all manual monitoring data within the accounting period should be used for calculation. Except for law enforcement monitoring, all other manual monitoring the production load of the segment should not be lower than the average production load during the current monitoring and the previous monitoring cycle, and the pair of production load is given.

Than the result.

The source of exhaust gas pollutants is calculated according to formula (5-5).

Where. the amount of pollutant emissions in the exhaust gas during the Dh-accounting period, t;

I - the measured mass concentration of the measured hour in the ith monitoring of the exhaust gas in the standard state, mg/m3;

Iq - the i-th monitoring hour of exhaust emissions under standard conditions, m3/h;

The number of effective monitoring data during the n-accounting period, dimension one;

The discharge time of pollutants during the h-accounting period, h.

The sampling position, sampling frequency, analysis method and data review of manual monitoring shall comply with GB 4915 and GB/T 16157.

HJ/T 373, HJ/T 397, HJ 848 and other monitoring specifications. The frequency of monitoring by law enforcement monitoring and self-monitoring by pollutant discharge units, 8 should meet the relevant standards, norms, environmental impact assessment documents and their approvals issued by the state and local governments.

When manual monitoring data is used to calculate the source of exhaust gas pollutants, the operating conditions of the production equipment during the monitoring period should also be recorded simultaneously.

Parameters such as material dosage, fuel consumption, temperature, pressure, fan air volume, motor current, etc.

5.4 Drainage coefficient method the blowdown coefficient method is applicable to particulate matter, SO2, NOx, and fluoride produced in the cement production process.

The source strength of a pollutant can be calculated according to formula (5-6).

D=M×beta×10-3 (5-6)

Where. the discharge of a pollutant during the D-accounting period, t;

Output of clinker or cement production line during M-accounting period, t;

beta - the pollutant discharge coefficient of a certain pollutant (based on clinker or cement), kg/t.

See Appendix A for the blowdown coefficient. In actual use, it is necessary to pay attention to pollution prevention facilities (see Appendix C) and corresponding to the discharge coefficient.

The consistency of the situation.

5.5 Source strength accounting under abnormal conditions

5.5.1 New (reconstruction, expansion) construction sources of pollution sources under abnormal conditions, the source strength is calculated by analogy, sulfur dioxide ...