2tph WNS series gas-fired steam ng hot boiler fertilizer plant project for feed industryTempering is a crucial link in the granulation process of feed industry; the performance of tempering has a direct impact on the quality of pellet feed. Currently, feed mills use steam to complete the tempering process; hence, a steam boiler is a core equipment for feed industry. Nanjing Shuaifeng Feed Co., Ltd. is established in 2005, its major products consist of aquatic feed, tubificidae, fish feed and crab feed. To improve the feed quality and response to global environmental policy, Nanjing Shuaifeng Feed Co., Ltd. planned to reintroduce an efficient and environment-friendly steam boiler. After a series of contrastive analysis on a lot of boiler products, the company was attracted by the high performance of ZOZEN WNS series gas-fired (oil-fired) boilers, and order one set of 2tph steam boiler. This kind of boiler has wide fuel adaptability, including natural gas, light diesel oil and much other clean energy; with low NOx burner, ultra-low emissions of nitrogen oxides can be easily achieved. Meanwhile, the boiler adopts a large-diameter corrugated furnace to ensure the full combustion of fuels; the sufficient storage areas of steam and  heating surface can effectively improve the thermal efficiency of the boiler as well as the the quality of outlet steam.

Yesterday we learned that the Guangdong Province to increase pollution control efforts by the provincial people's government approval, Guangdong Province Market Supervisory Authority, the ecological environment of Guangdong Province, Guangdong Province, recently issued jointly approved by local standards "ng hot boiler fertilizer plant air pollutant emission standards." Compared to the original standard, including contaminant particulate matter, sulfur dioxide, nitrogen oxides, etc. received strict emission limits help to further reduce the total emissions of air pollutants.

Provincial Department of environment-related offices responsible person, the current Guangdong Province "Boiler Air Pollutants Emission Standards" promulgated and implemented more than eight years, with advances in pollution control technology, emission control requirements of its apparent leniency. Meanwhile, Guangdong air pollution control task is arduous, urgent need to close strict standards, further reducing the total emissions of air pollutants.

Guangdong "boiler air emission standards" in the context of the implementation province domain for coal, the material forming the fuel oil, gas and raw fuel 65 tons of steam per hour and less steam boilers, hot water boilers of various capacities and Heat Transfer Material Heater; stoker various capacities, stoker furnace.

The new "boiler air pollutant emission standards" (DB44 / 765-2019) to adjust six major areas.

A clear the raw fuel material forming air pollutants emission limits fuel boiler;

Second, the received strict emission limits boiler air pollutants, increasing the emission limits coal boiler mercury and its compounds;

Third, the abolition of provisions different emission limits by functional area and boiler capacity;

Fourth, in particular an increase of atmospheric pollutant emission limit requirements;

Fifth, increase the fugitive emission control requirements;

Sixth, the excess air ratio conversion flue gas pollutants to the atmosphere of pollutants emission concentration of the reference oxygen content conversion, the oxygen content of the clear reference atmospheric pollutants fired boiler burning biomass.

The new standard in the province gamut execution, the execution time of the specific step-wise: new boiler effect since April 1 this year; the transformation of boilers give some time, depending on which region, from 1 July 2019 2020 or the date of July 1 implementation of the new standards.

How to determine whether the fuel gas ng hot boiler fertilizer plant off state? Gas boiler furnace fuel indication value of the negative pressure suddenly increases; the furnace black, can not see the flame hole to see the fire; sound disappears combustion furnace; fire fighting monitor emits a signal; sharp decline in temperature, pressure, level decreased and then increased after so are flameout phenomenon. Auxiliary flame caused by an accident, such as a fan, blower power interruption, there is an accident signal emitted; fuel supply is interrupted as a result, pressure oil or gas boiler is reduced to zero.

For example, the low-nitrogen condensing oil and gas ng hot boiler fertilizer plant adopts advanced condensing technology to make secondary use of the high-temperature flue gas generated by the boiler operation, fully absorb the waste heat of the flue gas, and the boiler efficiency can reach 98%, which can save a large input cost for the paper mill. And the boiler adopts the world's advanced technology--FGR technology, using flue gas recirculation, the flue gas generated by the boiler operation is re-entered into the furnace through the connecting pipe, and the function of low nitrogen oxides is achieved by lowering the combustion temperature, which is a green energy-saving energy-saving pioneer. .