1tons coal fired chain grate steam boiler for rice mills
Our emphasis on increasing green, local governments also boiler operation produces nitrogen oxides and smoke emission requirements become more stringent. Fast boiler followed by the national trend of development, deepening of cleaning boiler product design and development. Lulu as a representative of business development of the national beverage, and hope to find a set of boiler energy conservation and clean in one, for drink production process of fermentation, sterilization, drying, curing and other processes. After many visits and market research, in October 2017 and entered into boiler fast boiler purchase contracts, purchase two 10 tons of steam and a whole 20 tons of steam condensing 1tons coal fired chain grate steam boiler for rice mills. The two sides this cooperation is the other quality fast condensing gas boiler highly recognized, has proved a powerful strength fast boiler in the boiler production and service of gas condensate from the side.
What part of the body including the boiler? What role have? It comprises a crucible and the furnace: a body: refers to a soda boiler system, which is superheated by the reheater water preheating system and a vaporization system composed of dry steam. The role of the high-pressure boiler feedwater heater through the further heating evaporation, for the purpose of blowing rpm turbine to do work. System configuration: economizer, the drum, the downcomer, water wall, superheater, reheater, economizer high pressure heater outlet feedwater is introduced into the economizer, economizer tube within an outer absorber tube gas and fly ash heat, water temperature increases to about 300 ℃ drum water out from the economizer line into the bubble along the top of the boiler disposed outside. Drum lower half of the water, the upper half steam. Unsaturated high pressure drop along the water reaches the bottom of the bubble tube at the bottom of the lower header outside the boiler, a number of pipes mounted in parallel on the bottom of the boiler around the lower header, the furnace by the upward flow of the absorbent in the central flame of the inner tube wall pipe convective heat radiation heat transfer and high temperature flue gas. Since the heat absorption is much less than the water vapor, the water wall within a predetermined vaporization rate can not be greater than 40%, because the working fluid will easily melt late Wall water absorbing tube rupture occurred. Downcomer role is water vapor to the bag waterwall lower header, to establish a water circulation. Wall water in the tank through the second line and then returned to the boiler water wall, the water in the drum is completed, the downcomer, the circulation between the superheater waterwall separated in the steam drum is withdrawn from the top of the drum, laying into the first top ceiling superheater, then through the cladding wall superheater, low temperature superheater, platen superheater, to a high temperature superheater, after reaching the rated temperature of the heating steam turbine into work. After the reheater boiler is also provided with a large reheat means that steam from the high pressure cylinder acting, temperature and pressure of the exhaust gas is reduced, the exhaust gas is heated to a reheater, and then returned to the steam turbine, a low pressure cylinder continues to work. Furnace body: it refers to a boiler furnace combustion system and its role is to heat the fuel combustion in the furnace as much as possible and transfer heat to the working fluid, and the completion of the water wall and economizer water water heated in the tubes, heated in the dry steam superheater and reheater tubes, the air in the air preheater tube heated. The system consists of: a combustor, furnace, air preheater. Production process: raw coal from the coal by the belt conveyor to the higher field position of the coal bin, the bottom of the coal from the coal bin out through the stoker evenly into the ground to a coal mill. Nature of the atmosphere via the air inlet of the blower is arranged in the vertical flue to the boiler air preheater, subjected to heat of the flue gas, flue gas waste heat recovery. About 250 degrees out of hot air into two air preheater from: one directly introduced into the burners of the boiler as secondary combustion air into the furnace; the other can be introduced into the mill inlet for drying, transporting coal, which said primary air portion of hot air. Excellent flow of drying gas and pulverized coal mixture powder consisting of primary air, conveyed via line separator to be coarse coarse separator, the separated coarse powder inlet sending back regrind mill, and eligible powder and primary air mixture into pulverized powder separator, gas separation, the separated coal fines into storage to save it from the powder according to the magnitude of the thermal load of the boiler, the control of coal flow discharged coal warehouse bottom while separated from the fines separator as the primary air pulverized coal power delivery, after the pressing of mill powder mixture with the gas mixture into a fine powder fed again by a burner into the combustion furnace.
The main characteristics of the indicators boiler What? To demonstrate configuration, capacity, parameter and economical operation of the boiler, etc., generally represented by the following indicators to the basic characteristics of the boiler. A) evaporation industrial boilers evaporation is generally 0.1 ~ 65t / h. For the hot water boiler with a nominal thermal power of its capacity to indicate the size, in units of MW. (Ii) pressure and temperature for saturated steam production boiler, just indicate steam pressure. For the production of superheated 1tons coal fired chain grate steam boiler for rice mills, the steam temperature of the steam must be marked at the outlet of the superheater, i.e., superheated steam temperature, the unit is deg.] C. For hot water boiler, the hot water temperature has rated outlet and rated the import of sub backwater temperature. With rated thermal power, rated water temperature and the return temperature corresponding to the rated nominal referred circulating water flow of water through the hot water boiler, the unit is t / h. Heating boiler (iii) an evaporator heating surface and the heating surface of the heat generation rate surface evaporation rate or heating rate is an indicator of the intensity of the boiler work, the greater the numerical value, the better the heat transfer, the smaller the amount of metal consumed boiler. Heating surface evaporation rate general industrial boiler is less than 40kg / (m · h); heating surface of the heating rate of hot water boiler is less than 83700kJ / (m · h) iv) the thermal efficiency of the boiler which is an index indicating economical boiler heat, general industrial combustion thermal coal boiler efficiency of around 60% to 82%. Sometimes, in order to measure the heat economy schematically steam boiler, are also commonly used coal or coal water vapor than the ratio expressed as the ratio of the amount of coal in the boiler per unit time over the period of time and the amount of steam production. Coal-water ratio of about the size and type of boiler, coal quality and operation management quality and other factors. Industrial boilers coal-water ratio is generally l: 6 ~ 1: 7.5. Description (a) Evaporation: desired amount of steam produced per hour steam boiler called evaporation, the unit is t / h steam boiler showed that the size of the rated capacity of evaporation, i.e. in boiler design parameters and ensure a certain efficiency. maximum continuous evaporation, also known as the rated output of the boiler (ii) pressure and temperature: the rated pressure steam boiler of the steam at the outlet of the steam or the hot water boiler rated working pressure rated pressure at the outlet of the hot water boiler is called, and He said maximum working pressure, in units of MPa (iii) an evaporator heating surface and the heating surface of the heat generation rate: refers to the heating surface of the pot soft drinks and other heat transfer medium and the flue gas heat exchange area of the pressure receiving member, usually with smoke metal surface area of the gas-side heating area is calculated, in units of square meters. the amount of steam per hour per square meter of the resulting heating surface, called boiler heating surface evaporation rate, in units of kg / (m · h) per hour hot water boiler m² heating surface of heat generated by the heat generation rate is referred to as heating surface, the unit is kJ / (m · h). (Iv) thermal efficiency: thermal efficiency of the boiler is a boiler effective utilization percentage of the heat input and heat boiler per unit time, also called boiler efficiency, [eta] is represented by the symbol.
Use the hotel boiler should pay attention to what the weather is cold, the hotel is primarily a boiler to heat up water to provide hot water to the guests. As the state environmental requirements higher and higher, people continue to improve the boiler, boiler making to become more resource conservation and energy savings, and some boiler operation is very convenient, high combustion efficiency. With the increasing emphasis on environmental protection in the country, as well as the stringent requirements of energy conservation in recent years, basically around the large chimney have been demolished, and many hotels Bath boiler manufacturers have their own specialized products for the upgrading and the development and transformation of environmental technology. Many environmentalists boiler manufacturers have been committed to the exploration and development of gas boiler industry. There is a number of R & D of fuel gas-fired boilers, which are also more mature now, some of the techniques. Especially for hotel bath boiler of this series of products, as this not only applies to a series of boiler and simple hotel bath center, it is also widely used in daily residential water supply, power plants and other 1tons coal fired chain grate steam boiler for rice mills unit supporting the use of , so for some of these products to develop innovative energy saving technologies listed hotel bath boiler, will directly affect the overall trend of China's environmental protection boiler market. Take the fuel gas furnace, it is one of the energy saving aspects of the world's most sophisticated technology so far. On the one hand fuel gas-fired boiler can achieve full automatic control, intelligent automation, and the use of non-polluting, high combustion efficiency. Gas boiler due to the low efficiency of coal combustion, the process will discharge a lot of harmful gases such as carbon monoxide, sulfur dioxide, nitrogen oxides, etc., and accompanied by a lot of smoke, air pollution. Different gas boiler, gas boiler because of its specificity resulting in combustion of the fuel product is predominantly water and carbon dioxide, low air pollution, energy conservation comply with national requirements, and high thermal efficiency. From the current development situation, whether it is a hotel bath boiler or a variety of industrial boilers, energy saving and environmental protection go route, is unique selection, the difference lies in the stability of the maturity of the technology, as well as environmental protection boiler manufacturers in the technology and research efforts on investment, the future of the industry who can lead boiler environmental protection boiler market will be able to occupy the leading position in the industry.