The technical characteristics of our biomass circulation boiler, the industrial and engineering technology of 2010 no. 22, are wei jiang huao guangxidison biomass power company limited, guangxi nanning 530022. This paper provides an overview of the technical characteristics and developments of the cfb boilers in the country through a study tour of some boilers. Technical characteristics: tk6 bibliography code: article no. A: 1671-2064 (2010) 11-019-02 scientific code: foreword 470. 0000 biomass fuel compared to coal: high levels of chlorine and alkaline metals are not fully accounted for, and up to now there are more than 170 projects approved by the national commission for development or provincial (city and autonomous region) that use agro-forestry biomass for electricity generation, with low overall loads, high oxygen content, high moisture content, low fixed carbon, low ash, low heat, low sulphur. The boiler must be designed according to the characteristics of the fuel. 4. 6 million kilowatts; it is estimated that about 50 projects have been put into operation and are installed over millions of kilowatts. Biomass fuels, which contain a certain amount of alkaline metal inorganic impurity, are clearly identified in the medium- and long-term development plan for renewable energy, released in september 2007, as being susceptible to the melting of particles at low temperatures, and are thus easily immersed in high-temperature furnaces, reaching the development goal of 30 gw by 2020. In particular, in the process of fluid combustion, thermal heating in bed formations and water cold walls and furnaces began in july 2010 with a focus on the price of internet access for biomass power generation. The grant was raised to 0. 75 yuan per kilowatt hour. In general, the main reason for the biomass bed formation is that the partially melted biomass is half-coated or grey-capable, with great prospects for the generation of electricity. The reduction of fluid mass after the granules of the adhesive bed material, which, due to inadequate local fluidization, can lead to local high temperatures, thus increasing the melting of the grey particles, thus reinforcing the bonding between the particles of the bed material, further exacerbating the main type of fluidization in the boilers of the biomass plant, which is most unsuccessful. As a result, biomass generation in boilers that are combustion biomass is one of the important ways in which biomass energy is being scaled up. Large-scale biomass combustion power generation technologies are used to generate steam using biomass as feedstock in boilers. In general, the main challenge to be addressed is that fuel combustion in boilers can easily cause conjuncture, curry and power generation from steam-driven wheel generators. Problems: fuels that generate high-temperature alkali metal corrosion, direct combustion of boiler matter for electricity generation are solid fuels, usually for solid fuels, low-temperature chlorine corrosion at the end of the combustion furnace, and fly ash bridge. There are three main ways of burning, namely, suspended combustion, represented by coal powder furnaces, burning by furnaces, by numerous scientific institutions (or institutions) and by boilers in the course of research, by styl combustion of biomass fuel and by fluid combustion, represented by fluidized boilers. While there is a general consistency in understanding and understanding based on the combustion properties of biomass fuels, the specific technical solutions are not suitable for biomass combustion. The country has been operating in different ways, mainly in terms of programme design, process selection, operational adjustment tools, etc. Biomass generation projects use mainly water-cooled vibrating boilers and circulatory fluidized boilers, which can be grouped into two types of boilers (cfbs) depending on the distribution patterns of thermal surface. Large technology genres: the first technology genres advocate a minimum deployment of 2 inside the furnace (including a horizontal pipe) and the technical characteristics of the cfc boiler to thermal side. Such placements require a relatively long flue gas process at the tail end to meet the fact that more developed countries in the west have started the heat exchange of more cfb boilers with more heat. Figure 2 research and development for high temperature and high pressure biomass cfb boilers, as well as several practical applications. Our stoves have been designed with three tails, screen overheaters placed in the first pipe, and some research units and boilers have conducted more in-depth studies at an early stage, with low-temperature heaters and high-temperature heaters on the upper and lower sides of the second pipe, and coal and air-efficient cane slag boilers, cane slag powder boilers, paper mills with alkali recovery boilers and palm preheaters in the third pipe. In addition to the long tail gas flow, another solution is the palm boilers, which have formed a series of products. It is the placement of high-temperature overheaters in external heat exchangers. In recent years, countries have been called upon, in the interest of energy-saving emission reductions and resource utilization, to develop a ratio control of recycling ash into heat exchangers and of recycling ash directly back into the furnaces. Biomass energy reuse technologies, and cfb boilers for biomass fuel should be transported to make bed temperature more flexible. It can also be used as cold or raw as required. China energy conservation (river) biomass power co. Ltd. Stifled direct flammation project boiler cold cyclone separators to ensure that the boiler has sufficient hot area. It is generally used in the larger frame as the first cfb boiler in the country with autonomous intellectual property rights, followed by cfb boilers in terms of the amount of scientific research. A series of cfb boiler products with different parameters have been developed over time and are partially operational. The national production of biomass cfb boilers has moved away from the high cost of the introduction of foreign technologies for the generation of biomass in the country, which are not adapted to the burning of biomass in the country. A good basis has been laid for low-cost, small-scale and industrial development of our biomass boilers. According to incomplete statistics, up to now more than 15 projects using cfb boilers in biomass plants are operational, and more than 7,000 hours per year are used for better-functioning project equipment. Figure 1 schema of a programme for a boiler plant 130t/h high temperature high pressure biomass boilers. Figure 2 65t/h cfb boiler schematic (tail three) chart 1 130t/h cfb boiler schematic (with external heat-replacers) fig. 1 130t/h cfb boiller (heat exchanger set the outer) fig. 2 65t/h cfb boiler (tail three-channel) 19 china's technology spans china science technology square data 2010 no. 22 technical currents in industrial and engineering technology are in favour of more heated surfaces in the chamber. Some manufacturers, in addition to (4) tail-heated (coal, empty prep, etc.) tubes, generally using a typhus, place wing-walled water cooling screens inside the furnace, also place medium-temperature overheaters in the oven (or set them at a lateral distance that is generally greater than that of coal-fired boilers). The main objective is to prevent flying ash inside the pipe. As shown in figure 3, water cooling tube screens are installed at the lower end of the rare phase of the furnace, the furnace bridge. Thermal heaters and high-temperature heater snake tubes on the upper side of the chamber, which are regulated by the heat surface through the convection (5) load, need to adjust the feed, the air volume, to hang in the furnace when the load changes。this type of program is mainly to regulate solid particles in the bed by adjusting the amount of retort
