HJ 512-2009Cleaner production standard. Lead smelting industry (English PDF)

Foreword

To implement the "Environmental Protection Law of the People's Republic of China" and the "Clean Production Promotion Law of the People's Republic of China", protect the environment, and lead Refining industrial enterprises provide technical support and guidance for clean production, and develop this standard.

This standard stipulates that on the basis of meeting national and local pollutant discharge standards, according to current industry technology, equipment level and management water General requirements for cleaner production in flat and crude lead smelting enterprises. This standard is divided into three levels, one level represents the international advanced level of cleaner production, two Representing the advanced level of domestic clean production, the third level represents the basic level of domestic clean production. With the continuous advancement and development of technology, this standard will Revise timely.

This standard is the first release.

This standard was formulated by the Science and Technology Standards Department of the Ministry of Environmental Protection.

This standard was drafted. Changsha Nonferrous Metallurgy Design and Research Institute, China Academy of Environmental Sciences.

This standard was approved by the Ministry of Environmental Protection on November 13, 2009.

This standard has been implemented since February 1, 2010.

This standard is interpreted by the Ministry of Environmental Protection.

Clean production standard rough lead smelting industry

1 Scope of application

This standard specifies the general requirements for cleaner production in rough lead smelting enterprises. This standard divides the clean production indicators of the crude lead smelting industry into six categories.

That is, production process and equipment requirements, resource and energy utilization indicators, product indicators, pollutant production indicators (before end treatment), waste recycling Use indicators and environmental management requirements.

This standard applies to the clean production audit of crude lead smelting production enterprises, the judgment of clean production potential and opportunity, and the performance of cleaner production.

The assessment and clean production performance announcement system is also applicable to environmental management systems such as environmental impact assessment and discharge permits.

2 Normative references

The terms in the following documents become the terms of this standard by reference to this standard. Valid versions of undated references Applicable to this standard.

GB/T 2589 General rules for comprehensive energy consumption calculation GB/T 16157-1996 Determination of particulate matter in fixed pollution source exhaust gas and sampling method of gaseous pollutants GB/T 24001 Environmental Management System Requirements and User Guide HJ/T 56-2000 Determination of sulphur dioxide in fixed source s HJ/T 57-2000 Determination of sulfur dioxide in fixed source exhaust gases HJ/T 425-2008 Technical Guidelines for the Development of Cleaner Production Standards "Guidelines for Access to Lead and Zinc Industry" (National Development and Reform Commission Announcement No. 13 of 2007) Interim Measures for Clean Production Audit (National Development and Reform Commission, State Environmental Protection Administration Order No. 16)

3 Terms and definitions

The following terms and definitions apply to this standard.

4 Normative technical requirements

5 Sulfur dioxide conversion rate /% low concentration of oxygen

Sulfuric acid >=99.5 >=99 >=99

6 Fresh water consumption per unit product/(t/t) <= 10 <= 15 <= 25

7 Comprehensive energy consumption per unit of product (equivalent to standard coal

Calculation)/(kg/t) <= 450 Third, product indicators 1. Mercury content in sulfuric acid /% 0.001 0.01 -2. Arsenic content in sulfuric acid /% 0.000 1 0.005 -Fourth, the pollutant production index (before the end treatment) 1. The amount of wastewater produced per unit of product/(t/t) <= 4 <= 8 <= 12 Continued Clean production index level Acid tail gas <= 2 <= 4 <= 8 2. Sulfur dioxide per unit product Production amount/(kg/t) Other <= 2 <= 4 <= 8 3. The amount of particulate matter produced per unit product/(kg/t) <= 1.5 <= 3.0 <= 5.0 V. Waste recycling and utilization indicators 1. Industrial water reuse rate /% >=98 >=95 >=90 2. Comprehensive utilization rate of solid waste /% >=90 >=80 >=60 Sixth, environmental management requirements 1. Environmental laws, regulations and standards comply with national and local environmental laws and regulations, and pollutant discharge meets national and local emission standards, total amount control and discharge permit management requirements.

2. The organization has a sound environmental management agency and professional environmental management personnel.

There are specialized environmental management agencies and special Environmental management staff Have a basic environmental management agency and full-time environmental managers 3. Environmental audit in accordance with the "clean production audit temporary office the Law completed the clean production audit.

Complete cleaning production management machine Construction and continuous clean production;

Established and valid in accordance with GB/T 24001 Operational environmental management system, environmental management Handbook, program files and working papers Complete Audited in accordance with the Interim Measures for Clean Production Audit; Environmental Management the system is sound, the original records and statistics are complete and effective.

4. Solid waste management Properly dispose of general waste, such as lead dust, waste calomel, blast furnace yellow residue, acid sludge, sewage treatment slag, etc.

The hazardous waste shall be disposed of in a harmless manner in accordance with relevant requirements. Formulate and provide local environmental protection to local people's governments at or above the county level the administrative department shall record the hazardous waste management plan (including measures to reduce the amount and harmfulness of hazardous waste generation).

And hazardous waste storage, utilization and disposal measures, to the local environmental protection administration of the local people's government at or above the county level the competent department shall report the relevant types of hazardous waste generation, production, flow, storage and disposal. Targeting danger Production, collection, storage, transportation, utilization, disposal of hazardous waste, development of accident prevention measures and emergency Plan and report to the local environmental protection administrative department of the local people's government at or above the county level Quality inspection for all raw and auxiliary materials Institutional and consumption quota management system has quality inspection system and consumption quota management system for major raw and auxiliary materials all production processes have operating procedures, and the main positions have work instructions.

The main production process has operating rules Cheng, key positions have homework guidance Test the energy consumption and water consumption of each process Nuclear, production process can be graded Test on energy consumption and water consumption of main processes Nuclear, production process can be graded and evaluated the environmental protection facilities are in normal operation, and there are no running, rushing, dripping or leaking phenomena.

Warning signs, clean production environment Raw material processing, intermediate material crushing, sintering, smelting, loading and unloading, etc., all of which generate dust, are equipped with gas gathering, Pollution control measures such as dust removal and recycling for the kiln feed port, the slag outlet, the sintering head, the tail, etc., which are prone to produce unorganized emissions of sulfur dioxide, Gas collection and treatment equipment should be equipped the main source of pollution is installed by the national phase.

Automatic monitoring of qualified inspections system the key pollution source is installed with automatic supervision that has passed the test of the relevant state departments.

Control system

Environmental management procedures during start-up and shutdown New, modified and expanded project management and acceptance procedures Have an environmental monitoring and management system, record operational data and establish environmental protection files; and formulate corporate environmental risk plans 5. Production process environmental management Establish a regular emergency of major risk accidents the exercise system establishes a major risk accident emergency warning system 6. Safety and environmental protection requirements in the process of packaging, transportation, loading and unloading of raw and auxiliary materials in the relevant environmental management service agreement 5 data acquisition and calculation methods 5.1 sampling the pollutant production index refers to the concentration or total amount of pollutants before the pollutant enters the terminal treatment facility, and the sampling point should be set at the end.

Entrance to the facility. The sampling and monitoring of the indicators of this standard shall be carried out in accordance with the national standard monitoring method, as shown in Table 2.

Table 2 Method for determination of pollutants

Contaminant project method standard measurement point location the particles are placed in the discharge port according to GB/T 16157-1996.

Implementation of sulfur dioxide in accordance with HJ/T 56-2000 in accordance with HJ/T 57-2000 the acid tail gas is the end of the second suction tower, His exhaust gas is before the desulfurization device a The collection device of the particulate matter is connected to the main equipment, and the collected particulate matter is reused as a raw material, and the discharge concentration can be regarded as the generated concentration.

5.2 Calculation method

5.2.1 Total lead recovery in the crude lead smelting process, the ratio of the amount of metal lead entering the crude lead smelting to the total amount of lead in the raw material is calculated according to formula (1).

100%

Where. RPb--total lead recovery, %;

PPb--the amount of metal lead entering the crude lead smelting products (crude lead, zinc oxide soot, copper matte, etc.), t/a;

SPb - lead content in raw materials, t/a.

5.2.2 Gold (silver) into the crude lead rate in the crude lead smelting process, the ratio of gold (silver) entering the crude lead product to the total amount of gold (silver) in the raw material is calculated according to formula (2).

100%

Where. RG--gold (silver) into the crude lead rate, %;

PG--the amount of gold (silver) entering the crude lead product, t/a;

SG--the amount of gold (silver) in the raw material, t/a.

5.2.3 Total sulfur utilization the utilization rate of sulfur in raw materials in the process of crude lead smelting through various recovery methods, and the total amount of sulfur recovered Including the low concentration of sulfur dioxide in the exhaust gas, through the treatment and recovery of production by-products, excluding the sulfur entering the water quenching slag, the waste generated by the end treatment of the exhaust gas the slag and tail gas discharged into the environment are calculated according to formula (3).

100%

Where. RS - total sulfur utilization rate, %;

PS--the total amount of sulfur recovered during the crude lead smelting process, t/a;

SS - the amount of sulfur in the raw material, t/a.

5.2.4 Sulfur dioxide conversion rate the ratio of sulfur dioxide to sulfur trioxide in the flue gas of the acid conversion system, the second to the second acid and the low sulfur dioxide Calculated according to formula (4).

100% (4)

Where. NS--sulfur dioxide conversion rate, %;

rhoe--acid conversion of imported flue gas sulfur dioxide mass concentration (standard state), g/m3;

Qe--acid conversion of imported flue gas flow (standard state), m3/h;

rhoS--acid conversion flue gas sulfur dioxide mass concentration (standard state), g/m3;

QS--acid conversion flue gas flow (standard state), m3/h.

5.2.5 Fresh water consumption per unit of product Refers to the amount of fresh water used for production per ton of crude lead, calculated according to formula (5).

Where. Vi--ton crude lead fresh water consumption, t/t;

V--A certain measurement time (more than one month, the same below), the total amount of fresh water used in the whole process of crude lead production, t;

Q--The crude lead production of the enterprise within the same measurement time, t.

5.2.6 Comprehensive energy consumption per unit of product Refers to the comprehensive energy consumption expressed in units of crude lead production, calculated according to formula (6).

1 000 EE

Where. Ei--unit comprehensive energy consumption (calculated as standard coal), kg/t;

E--The total energy consumption (calculated as standard coal) obtained after comprehensive calculation of the amount of energy consumed in a certain measurement time, t;

Q--The crude lead production of the enterprise within the same measurement time, t.

Note. The comprehensive energy consumption mainly includes primary energy (such as coal, oil, natural gas, etc.), secondary energy (such as steam, electricity, etc.) and energy consumption directly for production.

Working fluid (such as cooling water, compressed air, etc.), but does not include energy consumption for power consumption (such as power generation, boilers, etc.). Specific comprehensive energy consumption according to GB/T 2589 calculation.

5.2.7 Wastewater production per unit of product Refers to the entire crude lead production process (including the flue gas furnace blowing system), the amount of wastewater produced by the production unit of crude lead, calculated according to formula (7).

Where. Wi--ton crude lead wastewater production, t/t;

W--the amount of wastewater generated in the whole process of crude lead production in a certain measurement time, t;

Q--The crude lead production of the enterprise within the same measurement time, t.

5.2.8 Sulfur dioxide production per unit of product Refers to the amount of sulfur dioxide produced by the production unit of crude lead in the entire crude lead production process (before end treatment), the separation of acid tail gas and other waste Two parts of gas. The acid tail gas is measured by the amount of sulfur dioxide in the flue gas (before the tail suction device) after acid production; the others include drying, sintering, melting, and smoke.

The amount of sulphur dioxide produced by all other sulphur dioxide generation points. Calculated according to formula (8).

Where. Si--ton crude lead sulfur dioxide production, kg/t;

S--In a certain measurement time, the production of acid tail gas and other waste gas sulfur dioxide in the whole process of crude lead production, kg;

Q--The crude lead production of the enterprise within the same measurement time, t.

5.2.9 The amount of particulate matter produced per unit of product Refers to the whole crude lead production process, the amount of particulate matter produced by the crude lead in the production unit is synthesized as a raw material by the particulate matter collected by the terminal treatment facility.

The amount of particulate matter produced is measured by the amount of emissions after treatment. Calculated according to formula (9).

Where. Di--ton of crude lead particulate matter production, kg/t;

D--In a certain measurement time, the amount of particulate matter produced in the whole process of crude lead production, kg;

Q--The crude lead production of the enterprise within the same measurement time, t.

5.2.10 Industrial water reuse rate Refers to the ratio of reused water to total water use in the entire crude lead production process, calculated according to formula (10).

W 100%

Where. RW--water reuse rate, %;

Vr--Repeated water consumption in the whole process of crude lead production within a certain measurement time, including net circulating water, turbid circulating water, reuse water and others Reuse water, m3;

Vi--In the same measurement time, the total amount of fresh water is taken in the whole process of crude lead production, m3.

5.2.11 Comprehensive utilization of solid waste Refers to the solid waste generated in the entire crude lead production process, and the company adopts measures to comprehensively utilize the proportion of the total amount of production, the ratio is calculated according to equation (11).

R 100%

Where. RR - comprehensive utilization of solid waste, %;

PR--Enterprise annual solid waste utilization, t/a;

SR--The total amount of solid waste generated in the whole process of crude lead production in the same year, t/a.

6 Standard implementation this standard is supervised and implemented by the environmental protection administrative department of the people's government at or above the county level.