Biomass fuel energy-saving supply system for thermal power plant boiler and supply method thereof

Abstract

The invention discloses a biomass fuel energy-saving supply system for a thermal power plant boiler. The system comprises an assembling and connecting frame, an aggregate crushing box, a conveying bin, a supply cylinder and a first hydraulic pump. A plurality of transverse partition plates are arranged in the middle of the assembling and connecting frame in parallel, and one ends of the transversepartition plates are each perpendicularly provided with a longitudinal partition. The system has the advantages that fuel is scraped and cut through cutter edges, the fuel and a scraper are oppositein rotating direction, the collision probability of the fuel and the scraper is increased, the fuel crushing efficiency and crushing degree of the scraper are improved, the fuel is crushed more thoroughly, fuel combustion is more sufficient and more thorough, the fuel thermal energy conversion rate is increased, when the boiler generates the equivalent electric quantity, less biomass fuel is adopted, and working energy conservation of the supply system is ensured; a pressing plate moves up and down to extrude the biomass fuel, the density is larger when the fuel is put into the boiler, the fuel containing amount in the boiler is increased, and the phenomenon that the boiler is blocked by the fuel is avoided.

Description

technical field [0001] The invention relates to a feeding system, in particular to an energy-saving biomass fuel feeding system and a feeding method for thermal power plant boilers, and belongs to the technical field of application of biomass fuel feeding systems. Background technique [0002] Boilers are indispensable in thermal power plants. Fuel is burned in boilers, and heat energy is converted into electricity for power generation. Biomass fuel: refers to the burning of biomass materials as fuel, generally mainly agricultural and forestry waste (such as straw, sawdust, bagasse , rice bran, etc.), which are mainly different from fossil fuels. The utilization rate of biomass fuels in boilers for power generation is getting higher and higher. The main function of the feeding system is to continuously feed biomass fuels into boilers for combustion and power generation. [0003] The existing biomass fuel feeding system for thermal power plant boilers still has many deficienc...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the biomass fuel is not completely and fully burned in the boiler, the combustion efficiency is low, and the same The electricity generated after mass combustion requires more biomass fuel, and the energy-saving performance of the supply system is poor, and when the supply system feeds the boiler, the biomass fuel is easy to block the boiler, resulting in fuel in the boiler The distribution of combustion heat is not uniform enough, and the efficiency of heat conversion into electricity is slow, and a biomass fuel energy-saving feeding system and feeding method for thermal power plant boilers are proposed

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