Biomass circulating fluid bed burning method and biomass circulating fluid bed boiler
A technology of circulating fluidized bed and combustion method, which is applied in the direction of fluidized bed combustion equipment, combustion method, fuel burned in molten state, etc. It can solve the problems of sticking and slagging on the heating surface, so as to prevent sticking, Improvement of working environment, effect of high steam parameters
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0059] According to the present invention, the biomass circulating fluidized bed boiler shown in Figure 1 includes a furnace 1, a separator 2, a feeder 3, and a tail flue 4, with a straight section 11, a feed port 101, and a coal filling port 102, biomass feeding port 104, superheater high temperature section 12, separator material leg 21, superheater low temperature section 41, evaporation heating surface 42, economizer 43 and air preheater 44;
[0060] The fuel used is corn stalks and rice stalks, and a small amount of coal is mixed with it. The steam parameters are high temperature and high pressure.
[0061] The upper part of the furnace 1 is equipped with a two-stage steam-cooled screen-type heating surface as the high-temperature section 12 of the superheater, which absorbs the heat of the flue gas at the upper part of the furnace 1, and reduces the temperature of the flue gas at the outlet of the furnace 1 to 700-800 ° C; Heating surface 42, low-temperature section 41 o...
Embodiment 2
[0064] According to the present invention, the biomass circulating fluidized bed boiler shown in Figure 2 includes a furnace 1, a separator 2, a feeder 3, and a tail flue 4, with a straight section 11, a feed return port 101, and a bed material feeding Port 103, biomass feeding port 104, superheater high temperature section 12, panel water cooling heating surface 13, separator material leg 21, air preheater 44, particle ash removal device 45, first stage 411 of superheater low temperature section, superheating The second stage 412 of the low temperature section of the economizer, the desuperheating device 413 between the stages, the boiling section 431 and the non-boiling section 432 of the economizer;
[0065] The fuel used is straw, and the steam parameters are medium temperature and medium pressure.
[0066] Since the ash melting point of wheat straw is lower than 700°C, the water-cooled panel-type heating surface 13 on the upper part of the furnace 1 and the steam-cooled p...
Embodiment 3
[0070] According to the present invention, the biomass circulating fluidized bed boiler as shown in Figure 3 includes a furnace 1, a separator 2, a feeder 3, and a tail flue 4, with a straight section 11, a feed return port 101, and bed material feeding Port 103, biomass feeding port 104, superheater high temperature section 12, panel water cooling heating surface 13, separator material leg 21, air preheater 44, superheater low temperature section 41, economizer boiling section 431 and non-boiling section 432;
[0071] The fuel used is corn stalks, and the steam parameters are sub-high temperature and sub-high pressure.
[0072]The upper part of the furnace 1 is equipped with a water-cooled panel-type heating surface 13 and a steam-cooled panel-type heating surface as the high-temperature section 12 of the superheater to absorb the heat of the flue gas at the upper part of the furnace 1 and reduce the temperature of the flue gas at the outlet of the furnace 1 to 600-700 °C; th...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com