4 ton gas fired wet back steam boiler

You must know the boiler energy problems (induced draft fan power consumption rate, steam consumption) draft fan causes problems 1.1 boiler flue dust and fouling, in particular air preheater fouling, resulting in increased resistance to smoke duct . 1.2 boiler flue, tail heating surface and dust leakage. 1.3 Leakage Rate large air preheater. 1.4 furnace excess air coefficient is too large. 1.5 unit load changes, run the adjustment is not timely, resulting in furnace pressure is too large. 1.6 unit load or low frequent starts and stops. 1.7 coal into the furnace worse, from the design value. 1.8 low efficiency filter. 1.9 draft fan blade badly worn, low operating efficiency. 1.10 fan outlet flue gas desulfurization big resistance. 1.11 soda boiler pipes for leaks. 2, 2.1 to 2.1.1 operational measures to solve the problem of the strict implementation of soot blowing system to prevent the heated area ash, blocking ash, flue gas system to reduce resistance. 2.1.2 holding the induced draft fan, the flue gas separator baffles and dampers in the fully open position. 2.1.3 The experiment showed combustion boiler, proper control of excess air in the furnace. 2.1.4 adjustment chamber negative pressure, air leakage reduction furnace and the flue. 2.2 routine maintenance and testing 2.2.1 induced draft fan performance test to determine the optimum operating point and efficient workspace. 2.2.2 boiler, air preheater, a flue, ESP and other system leakage inspection, process. 2.2.3 timely check processing chassis, shaft seal leakage. 2.3C / D repair, eliminating defects 2.3.1 down strict accordance with movement clearance adjusting fan. 2.3.2 induced draft fan blade defect action elimination hand vane opening adjustment. 2.3.3 Importers and induced draft fan baffle opening check. 2.3.4 duct tightness check process. 2.3.5 wave plate replacement air preheater, rinsed sector plate gap adjustment. 2.3.6 eliminate dust defects and improve collection efficiency. 2.3.7 clean flue gas desulfurization system, flue resistance is reduced. 2.3.8 eliminate soda boiler pipe leakage defects. 2.4A / B repair and transformation 2.4.1 Check and repair the fan blades, replace seriously damaged blades if necessary. 2.4.2 for energy saving fan efficiency below 75%. 2.4.3 The fan motor frequency transformation. 2.4.4 of the precipitator, if necessary, transform and improve collection efficiency.

15 tph SZL coal-fired water tube boiler project for gelatin industryNTP Gelatine Pvt. Ltd., established in 1957, is a leading gelatin manufacturer in Pakistan. In the manufacturing process of gelatin, plenty of high-quality steam is needed in extraction, concentration and drying, therefore, one set of 4 ton fired wet back steam boiler with sufficient output and high quality is critical to the production line. The previous coal-fired steam boiler of NTP Gelatine Pvt. Ltd. had a considerable impact on the production due to inadequate combustion and insufficient combustion, so the company decided to reorder one set of efficient coal-fired steam boiler. ZOZEN coal-fired boilers have outstanding advantages in product design, quality and performance, which were highly appreciated by NTP Gelatine Pvt. Ltd. ZOZEN sales manager conducted a field investigation to inspect the actual working conditions and provided a set of 15 tph SZL series coal-fired water tube boiler. This series of boilers has wide fuel adaptability, and is suitable for many types of coal including bituminous coal, lean coal, anthracite and lignite. In addition, it is equipped with different amounts of independent wind barns according to different evaporation capacity, by which users can adjust the wind supply to ensure the complete combustion on the basis of the type of coal and combustion conditions. Meanwhile, ZOZEN also customized feed system, slagging system and tail flue gas treatment system to increase the economic benefits in highest degree.

To continue to improve ambient air quality, to meet the people's growing need for beautiful ecological environment, Zaozhuang City, Shandong Province issued the latest "blue sky Zaozhuang City win the Battle of the operational plan (2018-2020 years)" (the "Program"). "Plan" put forward, built-up urban areas to carry out experimental work, to carry out large-scale coal-fired units off white wet flue gas treatment. The main objective of the "program" is that after three years of efforts, the total emissions of major air pollutants significantly reduce greenhouse gas emissions reduction synergies, significantly reduced the concentration of PM2.5, significantly reduced the number of days of heavy pollution, ambient air quality improved significantly, the people of the blue sky well-being significantly enhanced. By 2020, the city of sulfur dioxide, nitrogen oxide emissions are lower than 27% in 2015, the ozone concentration significantly increasing trend containment; of PM2.5, PM10年平均浓度分别控制在 57 mg / m, 91 [mu] g / m or less, sulfur dioxide, nitrogen oxides average concentration continued to improve air quality not less than 62%, more than the number of days of severe contamination and declining.

1, adjusting the industrial structure and layout, increase the elimination of backward production capacity and excess generated Yajian efforts; continued implementation of the regulation "scattered pollution" enterprise, and resolutely put an end to, "scattered dirt" project and has been banned "dirty scattered" Project resurgence after migration.

2, continued implementation of the total coal consumption control, by 2020, the city's total coal consumption control in less than 22.43 million tons, out of shutting down Daly environmental protection, energy consumption, safety and other 300,000 kilowatts of coal-fired units of non-compliance ; strongly promote the comprehensive improvement of coal-fired boilers, in 2018 the city built the region basically eliminated tea furnace, stove and other operating coal-fired facilities, a ban on new 35 steam tons / hour of coal-fired boilers, 65 tons of steam / hour or more coal-fired Upon completion of the boiler on the ultra-low emission, energy saving completed; low nitrogen gas boiler is substantially complete transformation.

3, vigorously promote clean energy heating, accelerate the pace of construction of natural gas to clear the system infrastructure, new natural gas for coal substitution when the priority of urban residents and winter heating, to achieve "by reducing coal gas", "coal to gas" adhere to the " gas will change. "

1, the full implementation of pollution permits management to achieve a comprehensive industrial pollution discharge standards. Accelerate the granting of emission permits, continue to promote the transformation of standard industrial pollution sources.

2, vigorously promote cleaner production. Of development zones, industrial parks, high-tech zones of concentration and control, compliance deadline conduct reform, reduce pollution industrial zone.

After the gas hot water boiler hot water boiler vaporization emergency 1. Vaporization handler circulating pump stops abnormally pump failure caused by: ① blower stops running immediately. ② immediately open the door, take measures to pressure the fire, lift the chute gate, cutting off the supply of coal grate. ③ In the case of boiler pressure not greater than 0.6MPa (600KPa), the exhaust valve to follow, only a sharp rise in pressure in the boiler deflated, used only relief exceeds 0.9MPa, and the exhaust process to be carried out slowly, prevention boiler due to loss of pressure and more violently again vaporized. ④ close the boiler water, water main gas valve. ⑤ open stop valve recirculation line, to ensure that the water supply pipe velocity convection heating surface (economizer) to prevent re-vaporization of the economizer. ⑥ The operation of the above operation, at the same time to pay the boiler to reduce the boiler water temperature and the furnace pressure. ⑦ After the boiler pressure is normal, i.e., opening the standby circulating pump, into the normal combustion. 2. Treatment failure or sudden loss of power boiler vaporization of power: ① immediately open the door, lift the coal chute slide gate to take pressure fire measures to reduce the oven temperature. ② Grate with the fastest speed in order in the shortest time to fire onto the slag tap. ③ the degree of treatment in the first case. Once a short time can not supply heating network system, antifreeze should take emergency measures. 3. Due to excessive heat boiler boiler vaporization process: ① the immediate closure of the drum, induced draft fan. ② immediately open the door, take measures to pressure the fire, lift the supply of coal chute slide gate, off of coal, while the grate into fast gear. ③ In the case confirmed the presence of water, the boiler can supply water to the boiler body, boiler out of the water while closing the main valve. ④ Open line stop valve recirculation pump to ensure water velocity convection heating surface of the pipe, to prevent the economizer again vaporized. ⑤ Open circulating pump with jog mode, jog each time less than 30 seconds, again less than one minute jog interval. Jog purpose is to reduce the boiler water temperature, while preventing a large amount of steam into the pipeline system. ⑥ back into place after the safety valve, circulating pump running, and then the normal burning stove. 4. Water boiler system run vaporization process due to water loss, loss of pressure caused by: ① immediately closed drum, induced draft fan. ② out of the water while closing the main valve and the boiler circulating pump. ③ take the same measures to cool the furnace tube described above. ④ Open stop valve recirculation line. ⑤ rely exhaust valve until the safety valve back into place. ⑥ until the boiler water temperature drops below 50 ℃, when the temperature of the furnace temperature less number 200 ℃, again within the boiler feed water, water course to be carried out slowly, to prevent harm to the boiler when the temperature is too large. ⑦ After processing leakage fault, the system time to the replenishment, and out of the water boiler always open the valve, and the circulating pump, and then normal combustion.

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