Biomass boiler feeding system

Abstract

The invention discloses a biomass boiler feeding system, and belongs to the field of biomass boilers. According to the biomass boiler feeding system, the bottom of a stock bin and a secondary spiral feeder are installed in a communicating and matched mode, the secondary spiral feeder and a feeding pipe are installed in a communicating and matched mode, the feeding pipe and a discharging pipe are installed in a communicating and matched mode, the discharging pipe and a hearth are installed in a communicating and matched mode, an air bellow is installed in a communicating and matched mode with the feeding pipe and the discharging pipe, a pneumatic quick shut-off valve, a heavy hammer type lever valve and a metal expansion joint are sequentially installed on the feeding pipe in a matched mode from top to bottom, a fluidization air bellow is installed at the bottom of the discharging pipe in a matched mode, the fluidization air bellow and an air bellow communicate and are installed in a matched mode, and the air bellow and a draught fan are installed in a matched mode. The biomass boiler feeding system aims to solve the problem that a unit cannot run for a long period due to material blockage, shaft breakage and shaftless spiral breakage of a stokehole feeding system of a power plant in the current biomass industry, reduce the labor intensity of operators, save electricity and reduce the production cost, the one-time investment cost, the repeated investment cost and the maintenance cost are saved, and meanwhile the target of long-period operation of the unit is achieved.

Description

technical field [0001] The invention relates to a biomass boiler feeding system, which belongs to the field of biomass boilers. Background technique [0002] At the end of 2019, my country's biomass power generation installed capacity reached 22.54 million KWH, a year-on-year increase of 26.6%; biomass power generation capacity was 1,111.1 billion KWH, a year-on-year increase of 20.4%. As of the end of 2019, among all kinds of biomass energy, the installed capacity of waste incineration power generation accounted for 53% of the total installed capacity of biomass power generation, ranking first; the installed capacity of agricultural and forestry waste power generation accounted for 43%; the installed capacity of biogas power generation accounted for 4%. If 43% of the 22.54 million KWH of biomass installed capacity is calculated as an average of 30,000 boilers, there are about 323 agricultural and forestry waste biomass boilers. [0003] However, the layout of the feeder i...

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Problems solved by technology

[0025] The research and development purpose of the present invention is to solve the problems of blockage, shaft breakage and shaftless screw breakage in the feed system in front of the furnace of power plants in the current biomass industry, which cause the unit to fail to achieve long-term operation. A brief overview of the present invention is given below, in order to provide a basic understanding of certain aspects of the invention

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