In mid-March this year, Shenyang City, the first boiler industry issued emission permits. Plan will livestock poultry, dairy products manufacturing, automobile manufacturing and other industries 29 issued emission permits, issued by the maturity shall not sewage, sewage behavior of errant card companies to investigate and punish. This is also the industry's first Shenyang boiler emission permits.

According to the State Department "to control emissions permit system implementation plan" and the Ministry of Environment "discharge permit management approach", 2017 in Shenyang City has completed thermal power, paper, cement, electroplating, pharmaceutical, pesticide, textile printing and dyeing industry, 54 enterprises license issuance of work. 2018, the city completed the issuance of emission permits 128, including iron and steel industry 5, slaughtering and meat processing industry 106, 16 water treatment industry, ceramic industry one, according to industry certification and time-bound national requirements, so that " should be sent to do hair. "

This year, Shenyang City, according to "stationary sources of pollution permits Classification Catalog" requirement, will be livestock poultry, dairy products, Condiments fermentation products manufacturing, food manufacturing other convenience food, wine manufacturing, footwear, plywood manufacturing, bamboo and rattan wood furniture manufacturing, polyvinyl chloride, phosphate fertilizer, automobile manufacturing, battery manufacturing, non-metallic waste and scrap metal processing, garbage to hazardous waste sludge as fuel for thermal power generation, sewage treatment and recycling, environmental control industry , heat production and supply, electroplating facilities, sewage centralized treatment of industrial waste water and other 29 industries issuance of emission permits. Up to now, has been launched boilers, water treatment, ceramics, automobile manufacturing, battery manufacturing, phosphate fertilizer industry and electroplating processes work permits issued.

Shenyang Ecological Environment Agency, responsible person, emission permits to take "a card-style" management, so that all the laws and regulations of the environmental requirements of an enterprise integration to a convergence of the proposed permit up to implement the main responsibility for polluters. A company issuing a discharge permit, enterprises through the establishment of self-commitment, self-monitoring, accounting records and regular reporting system has proven its emissions by law, to further strengthen fine management.

Shenyang in the discharge permit issued during the EIA procedure will be incomplete, excessive emissions, there is the issue of corporate environmental management ordered rectification to achieve "issued an industry, to clean up an industry, an industry specification, an industry discharge standards." In the future, Shenyang will be implemented in accordance with the regulatory card issuing companies to carry out law enforcement inspection post card, after intensive license management, enterprise undocumented sewage discharge permits and do not follow the behavior will be investigated according to law.

About six tons of steam boiler shutdown of a temporary shutdown: It is planned, therefore slow cooling during shutdown protection device, it should also pay attention to safety, pause furnace according to the rules in Chapter IV Fenghuo (pressure fire) get on. 2, safety shutdown: care should be completely stopped even on normal operation plan for 1 to 3 months to be a shutdown, shutdown should maintain more safety injection apparatus, after the shutdown, and other water-cooled furnace to below 70 ℃ when they let go of the gas, open manholes, hand holes, rinse the pot with water scale. 3, emergency shutdown: the boiler operation, when the case of the following circumstances, should an emergency shutdown, and notify the relevant authorities. (1) expanding the cease-fire should first see if the water table level is called to take water law. If Inception water table, water cock side, and then close the steam cock, and then turn on the water faucet open and close repeatedly called after water, still can not see the water. (2) All water supply equipment failure. (3) All water gauge, pressure gauge, safety one of all the failures. (4) a boiler or furnace wall element damage, serious threat to the safe operation of the boiler, emergency shutdown, should focus on preventing the stop of the accident and the specific steps as follows: ① first blowing off; ② the coal on the grate red raking; ③ Close induced draft fan.

Further, the sulfur content of natural gas is also very small, and the coal-fired boiler dust removal, desulfurization, denitrification had on the gas boiler need only consider the problem of denitrification. 3, from the point of view of other waste emissions, natural gas, almost no other pollutants, especially in urban gas; and coal, then coal field (especially small boiler mostly built on open air) during the rainy season will produce slime water into groundwater import or surface water, after burning ash transport will produce dust. 4, of course, there are differences from other areas, for small boilers for gas-fired boiler energy efficiency is higher than a lot of coal-fired boilers, process equipment is simple, small footprint, low cost of operation and maintenance and so on.

Steam boiler steam separator device works in the overall design of the steam boiler, steam separator device is essential, rapid separation of water saturated steam is to improve the steam quality to ensure that an important part of the normal operation of the boiler. Fuel gas boiler is not only fuel but also refers to the gas boiler. Previously no such dual-fuel boiler, burner because either fuel or gas, no dual fuel burners. With the rapid development of the world energy equipment, some European countries begin production and sales of fuel gas burner, dual fuel burner and boiler combination of organic birth of a new breed of boiler - fuel gas-fired boiler. Biomass boiler is a kind of boiler to biomass energy as a boiler fuel called biomass boilers, steam boilers into biomass, biomass hot solar boiler 12v service instant water boiler, biomass stove, biomass thermal oil heaters, vertical raw biomass boilers, biomass boilers and other horizontal. Convenient to meet customer needs. Then, the authors will guide you to understand the working principles of steam and water separation device on the steam boiler. First, to avoid increasing the local load between the evaporation surface and the vapor space drum boiler, the steam is uniformly by water extraction. Second, it can effectively weaken the kinetic energy soda mixture into the tank, reducing its impact on the water. Third, in order to take advantage of inertia, and centrifugal separation, the mixture having a flow path soda rapidly changing, keeping in mind the shunt separation of water, to avoid being carried steam again. Finally, there is a large surface area, in order to adhere more water droplets. At the moment, a lot of steam separator type, according to the principle of the separation can be divided into natural and mechanical separation. The principle is to use natural separation of steam and water and the density difference between the force of gravity. Mechanical separation principle relies on inertial force, centrifugal force and adhesion. Water separation apparatus is often installed in a steam boiler and used underwater plate, baffle, plate uniformity, manifold, volute separator, corrugated sheet and steel mesh separators.