In order to improve ambient air quality in the region, Linfen City, Shanxi Province with the actual situation, issued a notice "Linfen City in 2019 iron and steel, coking industry depth reduction plan". "Program" is mentioned, requiring all enterprises in the implementation of the transformation process of governance, compliance with the target, select advanced, mature, stable, and reliable control technology implementation of the transformation.
1, the end of June 2019, to complete the iron making and steel making ultra-low emissions transformation; the end of October 2019, the completion of the sintering head (pellet sintering) transformation of the ultra-low emissions.
Acceptance criteria: sintering (pellet) smoke particulate matter, sulfur dioxide, nitrogen oxide emissions in the reference oxygen concentration of not higher than 16% under the conditions (18%) of 10mg /, 35mg /, 50mg / m3; iron, other processes steelmaking emissions of particulate matter, sulfur dioxide, nitrogen oxides emission concentration is not higher than a standard 10mg / m3,50mg / m3,200mg / m3 of.
2, before the end of October 2019, the city's iron and steel enterprises to fully complete management and monitoring of fugitive emissions, fugitive emissions control, control, governance intelligent integration platform built
Acceptance criteria: transformation, steel companies outside the main source of fugitive emissions at 1 m, the particle concentration is less than 5mg / m3; the concentration of particulate matter emissions by organized collection after treatment is less than 10mg / m3.
3, the end of June 2019, to complete the coke pushing, coke ultra-low emissions of other transformation step; the end of October 2019, to complete the transformation of ultra-low emissions oven chimney.
Acceptance criteria: coke chimney particulate matter, sulfur dioxide, nitrogen oxide emissions in the reference oxygen concentration of not higher than 10mg / m3,30mg / m3,130mg / m3 under the conditions of 8%; coke oven coal, coke pushing step particulate matter emission is not higher than a standard concentration of 10mg / m3 of.
4, before the end of October 2019, the city's coking enterprises fully completed fugitive emission control and monitoring, fugitive emissions control, control, governance intelligent integration platform.
Acceptance criteria: transformation, mainly coking fugitive emission sources outside 1 m, the particle concentration is less than 5mg / m3; the concentration of particulate matter emissions by organized collection after treatment is less than 10mg / m3.
Note the use of automatic gas chian industrial boiler price gas boiler which is used to provide heat, literally can know is the use of gas as a boiler fuel, industrial and life can be used in gas-fired boiler. Security matters should pay attention to are: (1) To prevent a gas explosion, not only the need for gas-fired boilers and boiler furnace flue gas channel before starting the purge, and the need for a purge gas supply pipes. The gas supply duct purge medium is typically an inert gas (such as nitrogen, carbon dioxide, etc.), and the purge of the boiler furnace flue with a certain flow rate is the flow rate of air as the purging medium. (2) for a gas boiler, the point is not a fire, the chimney must then be purged of the furnace only after a second firing. (3) adjusting the gas boiler combustion process, to ensure the quality of the combustion, exhaust components must be detected in order to determine the excess air and incomplete combustion. Generally, the gas-fired boiler during operation, the carbon monoxide content should be less than 100 ppm, and at high load operation, the excess air ratio should not exceed 1.1 to 1.2; under low load conditions, the excess air ratio should not exceed 1.3. Case (4) did not take anti-corrosion measures at the rear of the boiler or condensing water collection, etc., gas boilers should avoid long-term operation at low load or low-parameter case. (5) for the gas with the liquid gas fuel boiler, special attention should be ventilated boiler room. Because of severe liquid gases than air, in case of a leak can easily cause condensation of liquid and spread on the ground, resulting in a vicious explosion. (6) fireman switch should always pay attention to the case of the gas valve. Gas line not leak.
Operation of a gas chian industrial boiler price with the daily management of the boiler put into operation must meet the following conditions: 1, boiler passed the test. 2, the boiler has been registered on file, no use permits boiler must not be put into operation. 3, fireman trained personnel evaluation, obtain operating permits and operating the boiler to adapt. 4, it is necessary to measure the water treatment and water quality certified laboratory personnel. 5, a complete set of practical rules and regulations, including: 1) personal responsibility; 2) boiler operating procedures; 3) mobile inspection system 4) equipment maintenance system; 5) the shift system; 6) Water quality management systems; 7) clean system; 8) safety and security systems; (b) softened water boiler, water quality should be consistent with GB / T1576-2008 "industrial boiler water quality," the relevant requirements. (C) for preparing for the steam within the boiler steam pressure close to the operating pressure when, for the steam pot before the water level should not exceed the normal water level, combustion in the furnace before the steam supply should be stable. When the total steam supply steam valve slightly open, micro steam heating pipe, while the pipe line vent valve open, releasing the condensate, warm-time decided according to the pipe length, diameter, and temperature steam, generally less than 10 minutes. Note that the case of heating pipe should the pipe expansion and pipe stent, if there is no abnormal situation, stop heating pipes and eliminating faults and defects. Be heat-pipe, before full total steam valve, open when the condensed water should be carried out slowly pipeline is gradually reduced, while paying attention to whether the boiler has a special sound for each member, if any should be checked immediately. After total steam valve fully open, the total steam valve handwheel should be returned half, not prevent rotation of the thermal expansion. To prevent steam with water not allow in any case the water level exceeds a high-water mark on the glass.
In theory, under ideal conditions, chian industrial boiler price fuel consumption = boiler output/fuel heat value/boiler efficiency. These parameters need to be known when calculating the gas consumption of a 10 ton natural gas boiler. Calculated by the calorific value of natural gas of 8400kcal/m3, it can be calculated that the gas consumption of a 10 ton natural gas steam boiler = 6 million kcal ÷ 0.98 ÷ 8400 kcal / m3 = 716 m3.
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