With the development of the economy, people begin to seek for a new type lifestyle and they have higher requirement to the living environment. Green economy and sustainable development have become the belief of modern people. In Beijing, more and more general capital cost of coal fired boilers industries rooms will be turned, and the energy shift to coal burning to clean energy ---natural gas. It is understood that this year Beijing will build a number of gas pipeline in 47 projects, 52 boiler rooms “from coal to gas”, to provide gas source. After this 52 boiler rooms renovation completed, it can be reduced to about 316,000 tons per year of coal-fired to reduce sulfur dioxide emissions of about 3,839 tons, about 1,287 tons of nitrogen oxide emissions. In recent years, Beijing continues to increase efforts to adjust energy structure, promoting clean energy from coal to work. ZG Boiler is one of the natural gas fired boiler manufacturers, and it is committed to design and manufactured industrial boiler heart and soul.

Dezhou City, Shandong Province issued - an important part of "Dezhou 2018 2020 coal consumption reduction alternative work" (the "Program"), the Yajian coal consumption as an ecological civilization construction and environmental protection work, and resolutely fight pollution prevention tough fight. "Plan" put forward, as of 2020, total coal consumption Dezhou control in less than 18.5 million tons, clean heating rate of 70%.

According to "program" requirements, Dezhou vigorously for shutting down the environmental, energy, security and other 300,000 kilowatts of coal-fired units of non-compliance, especially running at least 20 years of pure condensing units and over 25 years of condensate pumping thermoelectric unit. At the same time shutting down out of small coal-fired boilers to reduce coal pollution. Upon completion of the city's 10 steam tons / hour and coal-fired boilers are all clear on the key areas in national, provincial and determined basically eliminated 35 tons of steam / h coal-fired boilers, 65 tons of steam / hour or more coal-fired boilers completed energy efficiency and ultra-low emissions transformation.

Dezhou will also expand the scope of central heating, promoting clean urban and heating, 2020, the Center City District (Germany City, Texas Economic Development Zone, the Canal Economic Development Zone) central heating area of ​​45 million square meters, the other 10 counties (cities, districts) central heating area of ​​41 million square meters, the implementation of central heating pilot projects in rural areas where conditions permit. For areas not covered by central heating, according to the resources in the area of ​​heating conditions, combined with infrastructure construction, promote the substitution of gas for coal to other electricity-generation clean energy alternatives such as coal and biomass. As of 2020, Dezhou city's average clean heating rate of 70%. Among them, the city basically clean heating comprehensive coverage, average clean heating in rural areas reached about 55%.

In addition, Dezhou will continue to increase the proportion of natural gas consumption, substitution of coal consumption, encourage the development of direct supply of natural gas to large users to promote key industrial enterprises, industrial parks to achieve direct supply of natural gas. By 2020, increase the proportion of natural gas consumption in energy consumption to about 7%.

Impact of vertical steam general capital cost of coal fired boilers industries efficiency is basically a bunch of the root causes of the country are carrying out high-profile coal to natural gas national movement, using the vertical steam boiler, very large cuts infected micro particles, toxic gases such as nitrogen oxides same time smoke has also been suppressed. Vertical steam boiler efficiency is a measure of critical standards, common look behind a pile of roots of the impact of vertical steam boiler efficiency. After investigation authorities, vertical steam boiler heat loss is probably due to include these two: undesirable heat loss and flue gas emissions than adequate combustion air. Emission reduction in heat loss can be retrofitted aft vertical steam boiler exhaust heat recirculation installation, or use more advanced types of condensing boiler. Combustion air is not sufficiently analyze the problem over the ratio: generally vertical steam boiler burner ejector, causing the air-fuel ratio can not maneuver scheduling. Lot of non-vertical steam boiler with automatic blower burner, leading to undesirable air-fuel ratio has the following several roots: air-fuel ratio does not contain points over about two cases: when oxygen is in excess, the excess cold air will have unlimited the effect of heat, resulting in increased operating costs vertical steam boiler, low vertical steam boiler efficiency; when oxygen is insufficient, will have insufficient incineration conditions, to produce low vertical steam boiler efficiency.

Chain Grate type general capital cost of coal fired boilers industriess are likely the oldest commercial combustion technology still in use today. There are several types which have been enhanced through the years and are capable of firing biomass. But In fact, grate type boilers are among the most popular combustion technology for small to medium sized biomass-fired boilers.CFB boiler is a new clean coal technology which can co-firing coal dust and biomass for power plant,that need large capacity.