In response to the state-assigned air quality improvement objectives and environmental supervision central feedback coal-fired dzl stainless steel boilers environmental pollution rectification program, Kang County, Gansu Province based on "government-led, relying on real responsibility, Take Measures to proceed with" principle, accelerate the burning of remediation work out of the coal boiler, and to develop the following measures, at present, reconstruction activities are being actively promoted.
A: a comprehensive investigation, the establishment of accounting. For urban areas, towns, Kudo industrial parks all coal-fired boilers to conduct a comprehensive diagnostic investigation, a total of investigation and the use of the boiler 31 enterprises, a total of 38 boilers, electric boilers and removal of fuel two boilers, coal-fired boilers county a total of 36, including two sets of 20 tons of steam boilers, coal-fired boiler pressure 4. In the diagnostic process, the situation boiler location, type, number of units, the tonnage, use, carefully verify the age and so on, and sort out the summary, so that a boiler does not leak, the device information is not a shortage.
Two: to strengthen publicity, and create atmosphere. Through new media, focus on advocacy, government circulars issued, will be held to promote the government leaders in charge of on-site investigation led mobilization and other forms of media offensive formation, multi-level multi-angle carry out various forms of publicity and education remediation phase out coal-fired boilers, each guide society personnel support and participate actively promote the use of coal-fired boiler units understand the situation, to speed up the phase-out of coal-fired boiler renovation.
Three: supervision of interviews, results-oriented. Person in charge of the county Bureau of Quality Supervision led, in-depth coal-fired boiler unit, for the slowness, lack of knowledge, waiting to see the business units and enlighten them with reason, and emotionally moving. With the responsible persons of the two job interviews lag to not be one of them out of the situation Reconstruction of boiler in accordance with national policy requirements, on-site recovery boiler registration certificate and ordered deadline to be removed or modified.
Kang mentioned standard by the transformation, step out, closed down closed down, to gas and electricity from coal to supervise a number of measures to actively promote the elimination of remediation coal-fired boilers. Currently the county out of 29 coal-fired boiler units, of which 15 units destructive demolition, stop burning close 12 stations, two mentioned standard transformation. The remaining seven out of focus on remediation plan included in this year, the county continues to promote this work, and to call on the unit enthusiastic, standards do not fall, the team leave, determined to complete the end of October this year, the county and below 10 tons of steam coal-fired boiler work all clear.
Three Notes on using hot water dzl stainless steel boilers: hot water boiler is of a common heating equipment in particular is increasingly widespread application in the northern region of our country, in the installation only to ensure strict compliance with the relevant rules of measures installed to be able to make the installed Better results. Correct use of hot water boiler child can avoid a series of unnecessary harm them, to ensure the safe operation of the boiler and physical security personnel, Xiao Bian tell you about the following three considerations using professional hot water boiler, to help you a better understanding of the use of hot water boiler. First, pay attention to the way Sheung Shui Sheung Shui way is an important way to ensure the safe operation of the hot water boiler. Therefore, when the return pipe Sheung note inlet valves closed, the circulating pump and then the pressure was adjusted to an appropriate range resumed into the water. After the water level in the boiler system water injection is completed and then adjusted to a normal situation, it will be able to ensure ease of use of hot water boiler performance full play. Second, attention must be checked before ignition for each boiler auxiliary equipment to be checked before ignition hot water boiler, in particular need to pay attention to whether the valve is open and reliable, so as to ensure smooth water circulation inside the boiler, to avoid clogging the vapor pressure is too Big.
In the dzl stainless steel boiler, the exhaust temperature is between 160 ℃ and 250 ℃, and the steam in the flue gas is still in the overheated state. It is impossible to condense into liquid water and give out the latent heat of vaporization. It is well known that the boiler thermal efficiency is calculated by the fuel low calorific value without considering the heat loss of vaporization latent heat in the fuel high calorific value. As a result, the thermal efficiency of conventional boilers can only reach 87% / 91%. The condensing waste heat recovery boiler reduces the exhaust temperature to 50 ℃ and 70 ℃, which fully reclaims the sensible heat in flue gas and the latent heat of condensation of water vapor. Recovery of steam volume in boiler flue gas by condensing waste heat using natural gas as fuel At 15%-19%, the steam content in the flue gas of the oil-fired boiler is 10%-12%, which is much higher than that in the flue gas of the coal-fired boiler, which is less than 6%. At present, the boiler thermal efficiency is calculated by low-level heat generation. Although nominal thermal efficiency is high, because of the high natural gas, the difference of low-level heat-generating value is about 10%, the actual energy utilization rate still needs to be improved. In order to make full use of energy, reduce the exhaust temperature and recover the physical heat energy of flue gas, when the wall temperature of the heat exchanger is lower than the dew point temperature of the flue gas, the steam in the flue gas will be condensed and the latent heat will be released. 10% of the high and low calorific difference can be used effectively.
6 tph SZL series coal-fired chain grate steam dzl stainless steel boiler in ColumbiaThe processing of agricultural products requires a lot of procedures, and steam. Is demanded for the procedures of disinfection and aseptic packaging. Therefore, steam boilers are important equipment. Agra Feed S.A.S. was established in 2011. It is an enterprise in Colombia, operating in the Farm Product Raw Material Merchant Wholesalers industry. In recent years, due to the continuous expansion of the company's production capacity, Agra Feed S.A.S. urgently needed to purchase one set of energy-efficient steam boiler.After learning about the demand of Agra Feed S.A.S., ZOZEN recommended the 6 tph SZL series coal-fired steam boiler. This series of coal-fired boilers is designed and developed by ZOZEN, which has the characteristics of wide adaptability of coal type, compact design and convenient installation. Benefiting from its outstanding performance advantages, this series of chain furnaces successfully won the favor of Agra Feed S.A.S. In order to improve the actual efficiency of the company, ZOZEN also customized a complete set of steam boiler system with a thermal efficiency of over 82%. Meanwhile, according to the environmental protection requirements of the region, ZOZEN also installed dust removal, desulfurization and denitration facilities to effectively reduce NOx emissions.
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