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Basic dataStandard ID: HJ 2301-2017 (HJ2301-2017)Description (Translated English): Guideline on available technologies of pollution prevention and control for thermal power plant Sector / Industry: Environmental Protection Industry Standard Classification of Chinese Standard: Z25 Word Count Estimation: 30,323 Date of Issue: 2017-05-21 Date of Implementation: 2017-06-01 Issuing agency(ies): Ministry of Ecology and Environment HJ 2301-2017: Guideline on available technologies of pollution prevention and control for thermal power plant---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Guideline on available technologies of pollution prevention and control for thermal power plant National Environmental Protection Standard of the People 's Republic of China Possible technical guidelines for pollution control of thermal power plants Guideline on available technologies of pollution prevention And control for thermal power plant 2017-05-21 release 2017-06-01 Implementation Ministry of Environmental Protection released Directory Preface .ii 1 Scope of application 1 2 normative reference document 1 3 Terms and Definitions4 process pollution prevention and control technology 15 Flue gas pollution control technology6 Flue gas ultra low emission technology route7 Water Pollution Control Technology8 Noise Control TechnologyComprehensive Utilization and Disposal Technology of Solid WasteForewordTo implement the "Environmental Protection Law of the People's Republic of China" and other laws and regulations, prevention and control of environmental pollution, improve the environmental protection technology and Management work, the development of this standard. This standard defines the thermal power plant process pollution, smoke pollution and water pollution prevention and control technology, and noise control technology and solid Comprehensive Utilization and Disposal Technology of Waste. This standard is a guide document. This standard is the first release. This standard is organized by the Ministry of Environmental Protection Science and Technology Standards Division. The drafting unit of this standard. Guodian Environmental Protection Research Institute, China Power Engineering Consulting Group Co., Ltd., Zhejiang University, Fujian dragon Net Environmental Protection Co., Ltd., Zhejiang Feida Environmental Protection Technology Co., Ltd., Beijing Guodian Longyuan Environmental Protection Engineering Co., Ltd., Beijing New Environmental Technology Co., Ltd., Environmental Engineering Assessment Center for Environmental Protection, Beijing Institute of Labor Protection Science. The Environmental Protection Department of this standard approved on May 21,.2017. This standard has been implemented since June 1,.2017. This standard is explained by the Ministry of Environmental Protection. Possible technical guidelines for pollution control of thermal power plants1 Scope of applicationThis standard clarifies the feasible technology and the best feasible technology of pollution prevention and control of thermal power plant. This standard applies to GB 13223 in the provisions of the thermal power enterprises, including flue gas pollution control technology to 100MW and above coal-fired power Plant flue gas treatment as the focus.2 normative reference documentsThis standard refers to the following documents or the terms thereof. For undated references, the latest edition applies to this standard. GB 252 ordinary diesel Standard for Hazardous Waste Identification Emission standard of air pollutants in thermal power plants GB 13223 Safety standard for safe landfill pollution of hazardous wastes GB 18598 Standard for Pollution Control of Storage and Disposal Site for General Industrial Solid Waste Code for fire protection of building design GB 50016 GB 50192 river harbor engineering design specification Code for design of large and medium - sized thermal power plants GB 50660 DL/T 1493 coal - fired power plant ultra - clean bag compound dust collector Technical specification for selective flue gas denitrification in thermal power plants - Selective catalytic reduction method Technical specification for selective flue gas denitrification in thermal power plants - Selective non - catalytic reduction method Technical specification for operation and management of flue gas treatment facilities in thermal power plant JB/T 11829 coal - fired power plant with electric bag compound dust collector JTJ 211 harbor general plan design specification3 terms and definitionsThe following terms and definitions apply to this standard. 3.1 standard state standard condition The temperature is 273K, the pressure of 101325Pa when the state, referred to as "standard". This standard relates to the concentration of air pollutants, Special instructions, are under the standard dry smoke, oxygen content of 6% as a benchmark. 3.2 feasible technology available technology For the thermal power plant production process may produce pollution in the domestic thermal power plants have been applied to achieve national pollutant emissions (control) Standard pollution prevention and control technology and secondary pollution prevention and control technology, referred to as "feasible technology." 3.3 Best Available Technology best available technology In the feasible technology, taking into account the environment, energy, economic and other factors, can be achieved to achieve the maximum emission reduction technology Surgery 3.4 particulate matter particulate matter The solid and liquid particulate matter suspended in the flue gas, including the dust particles and the flue gas desulfurization which are not fully collected by the precipitator, The secondary particles produced during the denitrification process. 3.5 ultra-low emission The concentration of SO2 and NOX in the flue gas of coal-fired power plants is not higher than 10 mg/m3, 35 mg/m3 and 50 mg/m3 respectively.4 process pollution prevention and control technology4.1 dust handling, transportation and storage of dust prevention and control technology 4.1.1 Coal-fired power plant coal handling, transportation and storage facilities should be designed according to GB 50660 requirements. 4.1.2 coal-fired power plant coal handling should be taken to close, spray, etc. to prevent dust pollution. When the water is coal, it is dedicated to unloading coal wharf Design should be consistent with JTJ 211 and GB 50192 environmental requirements, unloading machinery should adopt bridge grab rope traction unloader, closed snail 2 off the ship. When the car to coal, the coal station should adopt the seam coal slot coal unloading device, in addition to the car into the outlet should take closed measures. iron Road to coal, coal unloading facilities in addition to the train into the exit should be taken outside the measures. 4.1.3 In the process of coal transportation in the factory, the coal transportation bridge and the coal transportation station shall be sealed and the round pipe belt conveyor may be used and Configure the dust collector as needed. Dust catcher can be based on the actual situation of coal volatiles choose bag filter or dry electrostatic precipitator and red The combination of wet, dust and ventilated electrostatic precipitators is shown in Table 1. Wet dust produced by coal waste Water to be treated. 4.1.4 coal storage in the factory should take closed coal field. Closed coal yard can use bar closed coal field, round closed coal field, silo type Coal field and so on. Coal spoiler should be set up to prevent coal spontaneous combustion. Can not be closed to the coal field can be considered wind and dust suppression network, wind four The above weather conditions, wind and dust suppression network should be greater than 60%. Storage site should be based on environmental requirements, climate characteristics, large storage of coal Small factors such as selection of appropriate dust control measures, see Table 1. Table 1 Coal handling, storage and transportation process dust control feasible technology Dust prevention and control link feasible technology applicability Coal handling operations Cheng Dian dust prevention and control (1) closed spiral unloader, bridge grab rope traction ship unloader water to coal (2) seam coal slot coal unloading device, both sides of the closed car to coal (3) coal unloading facilities in addition to the exit should be taken outside the railway measures to coal Factory coal transport for Industrial process dust control (1) round pipe belt conveyor or closed coal bridge is suitable for all power plant coal transportation (2) transfer station with bag filter for a variety of coal (3) transfer station with electrostatic precipitator for low-volatile coal (4) transfer station using wet dust collector and wet electrostatic precipitator combination for a variety of coal, more sensitive areas of the environment Plant storage site dust Control (1) open field coal field spray device, dry coal shed, the surrounding green Applicable to rainy, humid areas in the south and no around Environmentally sensitive target of the existing coal field (2) Opencast coal field Sprinkler and wind and dust suppression network combination for non-closed coal field (3) storage silo configuration library top filter is suitable for small coal storage, coal requirements of high power plant (4) Closed coal field setting Sprinkler is suitable for closed coal fields 4.2 dust removal agent handling, transportation and storage of dust prevention and control technology 4.2.1 Common desulfurization agent for lime or limestone powder. 4.2.2 loading and unloading operation dust prevention and control should be used to configure the unloading tanker unloading equipment, such as Roots blower. 4.2.3 transport dust control should be used closed tanker. 4.2.4 storage dust control should be used in storage silo bag filter, the material when the dust separation and collection of dust should also be used in addition to bag Dust. 4.3 ash field dust prevention and control technology 4.3.1 Power plant ash field should be used in blocks, to minimize the operating surface. 4.3.2 For the dry ash field, adjust the wet ash through the dump truck to the ash field, timely paving, sprinkler, rolling, wind speed should be suspended Industry, if necessary, can be covered. 4.3.3 For the ash field, the ash field surface should be covered with water. 4.4 liquid ammonia, ammonia water handling, transportation and storage pollution prevention and control technology 4.4.1 Liquid ammonia, ammonia water selection and design should meet the requirements of GB 50660. 4.4.2 Liquid ammonia, ammonia water handling, transportation, storage should meet the requirements of HJ 562 and HJ 563. 4.4.3 Liquid ammonia tank area is a fire hazard Class B places, and the fire spacing of buildings should meet the requirements of GB 50016.5 Flue gas pollution control technology5.1 General provisions 5.1.1 Flue gas pollution control mainly used flue gas dust, desulfurization, low nitrogen combustion and flue gas denitrification, mercury pollution control technology. 5.1.2 Coal-fired power plant dust removal, desulfurization and denitrification and other environmental protection facilities on the removal of mercury is obvious, most of the power plants can be achieved. For a Do not burn high mercury coal, mercury emissions exceeding the power plant, you can use a single mercury removal technology. 5.1.3 should be from the boiler ignition method, into the furnace coal ratio, boiler air supply and lifting load rate control, flue gas management facilities Line conditions, etc., as far as possible to reduce the unit when the start of flue gas emissions and emissions. 5.1.4 The boiler shall be operated with a plasma ignition or a clean fuel (eg natural gas, ordinary diesel as specified in GB 252-2015) Ignition, once the start of pulverized coal to burn, in addition to dry flue gas desulfurization and selective catalytic reduction (SCR) flue gas denitrification other than All flue gas treatment facilities must be operated. 5.1.5 The boiler shutdown phase must ensure that all flue gas treatment facilities are operating normally. Furnace to stop the pulverized coal and other fuels, to ensure that the unit Operation and safety, the flue gas treatment facility that can still be operated should continue to operate. 5.1.6 Operation and management of flue gas pollution control facilities According to HJ 2040 implementation. 5.2 Flue gas dust removal technology 5.2.1 General provisions 5.2.1.1 Coal-fired power plant flue gas dust mainly used ESP, electronic bag dust and bag dust removal technology. 5.2.1.2 Dust removal technology should be selected according to environmental requirements, coal-burning properties, fly ash properties, site conditions, power plant scale and boiler type. select. 5.2.2 ESP technology 5.2.2.1 Technical principles A) ESP technology is in the high voltage electric field, so that suspended in the flue gas in the smoke or particles by the role of gas ionization charge, Charged particles in the electric field force, the opposite polarity of the electrode movement, and adsorption on the electrode, by rapping, water film removal, etc. Its off from the electrode surface, to achieve the whole process of dust. According to the electrode surface ash removal is water, divided into dry electric dust and wet ESP. Dry ESP is often referred to as ESP, wet dust is often called wet. B) for the electrostatic precipitator power supply mainly high-frequency power supply, three-phase power supply, constant current power supply, pulse power and power frequency and so on. 5.2.2.2 Technical characteristics and applicability A) technical characteristics Electrostatic dust removal technology has the advantages of high efficiency of dust removal, wide application range, low running cost, easy maintenance and use, no secondary pollution, But its dust removal efficiency by coal, ash and other large impact, and covers an area of larger. B) Technical applicability The ESP technology is suitable for the removal of soot in the range of 1 × 104 Ω · cm ~ 1 × 1011 Ω · cm, which can be used in a wide range Temperature, pressure and dust concentration conditions. C) the main factors affecting performance The main factors that affect the performance of the electrostatic precipitator are working conditions, the technical condition and operating conditions of the electrostatic precipitator. D) Pollutant emissions and energy consumption Electrostatic precipitator dust removal efficiency of 99.20% to 99.85%, export dust concentration can reach 20mg/m3 below its energy consumption mainly for power consumption. Electrostatic precipitators use high-frequency, pulse and other new power supply, compared with the use of power frequency power supply can reduce pollutant emissions or in the same Energy efficiency under dust removal efficiency. E) the main problem of existence Conventional electric dust removal technology there is a high specific resistance to dust caused by anti-corona, vibration caused by the secondary dust and fine dust charge is not sufficient And so on lead to the problem of dust removal efficiency. 5.2.2.3 Technology development and application A) Low and low temperature electric dust removal technology ① low temperature electric dust removal technology is through the flue gas cooler to reduce the electrostatic precipitator inlet flue gas temperature to the acid dew point below the electric dust removal technology Surgery Smoke and dust than the resistance dropped significantly, flue gas flow decreased, can achieve a higher efficiency of dust removal; the same time, the smoke in the SO3 gas Condensed into liquid sulfuric acid mist, through the flue gas adsorption and chemical reactions, can remove most of the flue gas SO3; in the same to achieve the same Dust efficiency, compared with the conventional dry-type electrostatic precipitator, low-temperature electrostatic precipitator can reduce the number of electric field, the flow area can be reduced, Running power reduction, energy saving effect is obvious. But the smoke than the resistance will reduce the resistance to capture the anode plate dust electrostatic adhesion, and thus Resulting in an increase in secondary dust. ② low temperature electrostatic precipitator for ash and sulfur ratio greater than 100 flue gas conditions, ash and sulfur ratio refers to the low temperature economizer (flue gas cooler) The ratio of the mass concentration of soot in the flue gas to the SO3 mass concentration. B) wet dust removal technology ① wet dust removal technology is the use of water film to remove the particles adsorbed on the electrode. According to the shape of the anode plate, wet electrostatic precipitator points For the plate and tube, etc., the application is more tube type in the honeycomb and plate. Wet electrostatic precipitator installed in the desulfurization equipment, can be effective Removal of dust and wet desulfurization of secondary particles produced, and can be synergistic removal of SO3, mercury and its compounds. ② The main factors that affect the performance of wet electrostatic precipitator are wet type electrostatic precipitator structure type, inlet concentration, particle size distribution, air flow Distribution, dust collector technical conditions and flushing water. ③ wet electric precipitator in addition to power consumption, there are water consumption, alkali consumption, efflux waste should be considered as a wet desulfurization system to add water. C) High frequency power supply technology ① high-frequency power supply is the application of high-frequency switching technology, the frequency of three-phase AC power by rectifier, high frequency inverter, boost, secondary rectification Out of the DC high-voltage high-voltage power supply. 4 ② high-frequency power supply in the pure DC power supply, soot emissions can be reduced by 30% to 50%; high-frequency power supply in the intermittent pulse power , Can save 50% to 70%; high-frequency power control flexible, its own efficiency and power factor is high, up to 0.95; also with Has a light weight, small size, compact structure, three-phase balance and other characteristics, in the coal-fired power plant has been widely used. D) Pulse power technology ① pulse power is supporting the use of new high-voltage power supply, usually by a DC high voltage unit and a pulse unit superimposed Composition, DC high voltage unit can be used power frequency, three-phase power supply, high-frequency power supply. Pulsed power supply can greatly increase the peak of the electric field Voltage, pulse voltage width is generally 120μs and below. ② pulse power to improve the electric field voltage at the same time can maintain a low average DC current, inhibit the occurrence of anti-corona, so can mention High dust removal efficiency; pulse high voltage, pulse repetition frequency and other parameters are individually adjustable, the different conditions of dust changes have a good adaptability. Under the same conditions, compared with the power frequency, can reduce dust emissions by more than 50%, reduce energy consumption by 30% to 70%, there are a number of power plants into Power application. E) mobile electrode, off-line rapping and other cleaning technology ① mobile electrode is to change the traditional tamper cleaning for the cleaning brush cleaning, to avoid the phenomenon of anti-corona and minimize the secondary Dust, increase the speed of dust drive, can improve the efficiency of dust, but its equipment design, manufacture, installation process requires a higher. ② off-line vibration cleaning is the need to clean the flue gas outlet or into the export flue gas baffle closed, and stop the power supply, the vibration Playing clean, a significant ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of HJ 2301-2017_English be delivered?Answer: Upon your order, we will start to translate HJ 2301-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. 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