Formed biomass fuel power generation method
A biomass fuel and biomass technology, applied in the field of comprehensive resource utilization of rural waste, can solve the problems of unsatisfactory operation of biomass power plants, difficulty in collecting agricultural and forestry waste, and difficulty in fire prevention, etc., to increase temperature and increase retention Time, the effect of reducing dust deposition
Active Publication Date: 2014-08-06
JIAXING NEW JIES THERMAL POWER
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Problems solved by technology
[0007] However, agricultural and forestry waste has the characteristics of light weight, large volume, wide distribution area, and seasonal harvest.
Although my country has successively built a number of biomass power generation projects, the operation of these biomass power plants is not ideal due to the four major problems of collection, storage, transportation, and fire prevention of agricultural and forestry waste (straw).
Method used
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Embodiment 1
[0062] combined with Figure 1-4 , a method for generating electricity from straw-molded biomass fuels:
[0063] Step 1. Forming of biomass fuel:
[0064] The bundled straws are obtained by drying the dispersed straws in the field. The moisture content of the straws after drying is 10%. The bundled straws are transported to the double-drum flying knife crusher 2 by the plate chain conveyor 1 for crushing. A bag-type vacuum cleaner 3 is installed on the knife grinder, and the crushing particle size is 10 mm. Combustion aids and adhesives are added to the crushed straw, and then the mixed straw is sent into the extrusion molding machine 5 through the feeder 4 for extrusion. Compression molding, the extrusion molding machine adopts a porous detachable die head, the detachable die head has a die head body and an embedded extrusion head, the pressure of the extrusion molding machine 5 is set to 40-110 MPa, preferably 80 MPa MPa; the volume of the shaped biomass fuel is controlled...
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The invention relates to a resource comprehensive utilization method of rural wastes, in particular to a large-scale power generation method using straws comprehensively for thermal power plants and thermoelectricity enterprises, and provides a formed biomass fuel power generation method. The formed biomass fuel power generation method comprises the first step of using a conveyer for conveying bundled straws to a pulverizer for pulverizing, adding combustion improvers and adhesives into the pulverized straws, and then using a feeding machine for sending the mixed straws into an extrusion forming machine for extrusion forming; the second step of enabling formed biomass fuel to enter a biomass direct-fired boiler; and a third step of using the biomass direct-fired boiler for combusting the formed biomass fuel, using steam generated by the boiler for power generation through a turbine and a generator, and inputting the generated power to a power grid. Technological parameters or structures in the steps are improved, and therefore the purposes of high efficiency, energy conservation and saving cost are achieved.
Description
technical field [0001] The invention relates to a resource comprehensive utilization method of rural waste, in particular to a method suitable for large-scale comprehensive utilization of straw for power generation by thermal power plants and thermal power enterprises. Background technique [0002] Biomass energy is the solar energy fixed on the earth by the photosynthesis of plants, which is a typical renewable energy source. The use of biomass energy to replace fuels such as oil, coal, and natural gas to produce electricity can reduce dependence on fossil energy, protect national energy resources, and reduce environmental pollution caused by energy consumption. [0003] my country SO 2 The emission space is limited, the country burns more than 700 million tons of coal every year, SO 2 emissions have reached the upper limit. Thanks to SO 2 pollution, acid rain has harmed 30% of the country's land area. In 2003, only acid rain harm caused the loss of agricultural and fo...
Claims
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IPC IPC(8): F01K11/02F01K17/02F01D15/10
CPCY02P80/15
Inventor俞保云孟志浩章平衡计荣林庄建发胡宁吴斌
OwnerJIAXING NEW JIES THERMAL POWER