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Device and system for feeding large bio-material to furnace for directly burning generating

A technology of combustion power generation and material conveying system, applied in combustion methods, combustion equipment, fuel supply, etc., can solve problems that have not yet been seen, and achieve the effect of maintaining normal and stable combustion, stable operating parameters, and easier operation.

Inactive Publication Date: 2007-02-14
LIANYUNGANG XIEXIN ENVIRONMENT PROTECTION BIOLOGICAL THERMOELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of continuously pneumatically transported biomass directly enters the circulating fluidized bed boiler for combustion, and the calorific value ratio reaches more than 80%, and there are no related reports from other companies at home and abroad.

Method used

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  • Device and system for feeding large bio-material to furnace for directly burning generating

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Example 1. A material delivery method for transporting a large amount of biomass into the furnace for direct combustion to generate electricity. The biomass raw material is processed and cut into short biomass rods, or the shell and chip biomass raw materials are directly taken, and the gas composed of biomass raw materials and wind is used by wind The solid and two-phase mixture flows through the conveying pipeline, and is directly sent to the dense-phase area in the fluidized bed boiler for combustion and power generation. During the process of conveying the biomass by wind, it is also treated for removing mud and sand.

Embodiment 2

[0032] Example 2. A material delivery method for transporting a large amount of biomass into the furnace for direct combustion to generate electricity. The biomass raw material is processed and cut into short biomass rods, or the shell and chip biomass raw materials are directly taken, and the gas composed of biomass raw materials and wind is used by wind The solid and two-phase mixture flows through the conveying pipeline, and is directly sent to the dense-phase area in the fluidized bed boiler for combustion and power generation. During the process of conveying the biomass by wind power, it is also treated to remove silt and sand debris; the processed and cut biomass The length of the short rod is 40mm; at the same time, the iron removal treatment is also carried out on the biomass raw material.

Embodiment 3

[0033] Example 3. A material delivery method for transporting a large amount of biomass into the furnace for direct combustion to generate electricity. The biomass raw material is processed and cut into short biomass rods, or the shell and chip biomass raw materials are directly taken, and the gas composed of biomass raw materials and wind is used by wind The solid and two-phase mixture flows through the conveying pipeline, and is directly sent to the dense-phase area in the fluidized bed boiler for combustion and power generation. During the process of conveying the biomass by wind power, it is also treated to remove silt and sand debris; the processed and cut biomass The length of the short rod is 20mm; at the same time, the iron removal treatment is also carried out on the biomass raw material.

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Abstract

A method for conveying large amount of raw material into furnace for directly burning to generate power includes cutting raw materials to be stubs then applying wind force to directly convey air and solid two-phase mixed flow formed by wind and raw material directly to internal phase zone of fluidized bed boiler through pipeline for burning to generate power, removing off sand and mud impurities while raw material is conveyed by wind force. The conveying system for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to a method and system for feeding biomass for power generation, in particular to a method and system for feeding a large amount of biomass into a furnace for direct combustion for power generation. Background technique [0002] Coal is the main primary energy source in my country, accounting for about 70% of my country's current energy consumption structure. However, coal accounts for only 25% of the world's average energy consumption structure, and my country's energy consumption structure is obviously out of balance. Factors such as coal-based energy consumption structure and low energy utilization efficiency have made my country's environmental degradation increasingly serious, ecological damage, SO2 and CO2 emissions ranked first and second in the world, and the resulting economic losses accounted for the total GDP 3%-7%. However, my country's biomass energy resources are very rich. According to prel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23K3/02
Inventor 方逸庆
Owner LIANYUNGANG XIEXIN ENVIRONMENT PROTECTION BIOLOGICAL THERMOELECTRIC
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