Biomass and coal mixed combustion auxiliary device of boiler

A technology of auxiliary equipment and biomass, which is applied to combustion equipment, fluidized bed combustion equipment, and burning fuel in a molten state, etc., can solve the problems of high boiler manufacturing cost, high engineering cost, import of auxiliary equipment, etc., so as to improve high-efficiency combustion. , the effect of reducing emissions and optimizing operating levels

Inactive Publication Date: 2016-07-13
XIAN LIYUAN INTELLIGENT TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For imported technology, there is a localized technology digestion and absorption process, and due to the high cost of boiler manufacturing, some auxiliary equipment needs to be impo

Method used

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  • Biomass and coal mixed combustion auxiliary device of boiler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A combustion auxiliary equipment for co-combusting biomass and coal in boilers, including CFB test bench 1, circulating fluidized bed boiler 2, high-precision thermogravimetry 3, distribution fan 4, batching machine 5, nitrogen oxide generator 6, The biomass ash collector 7 is characterized in that: one end of the high-precision thermogravimetric system 3 is fixedly connected to the distribution fan 4 and the other end is fixedly connected to the circulating fluidized bed boiler 2, and the CFB test bench 1 is controlled by a digital display. The line is connected with key parts such as circulating fluidized bed boiler 2, high-precision thermogravimetric system 3, distribution fan 4, batching machine 5, nitrogen oxide generator 6, biomass ash collector 7, and the batching machine 5 is open at one end , can be arranged in the shape of a bucket or a trough, and the biomass ash collector 7 is arranged at the bottom of the device and is made of mesh-shaped high-temperature-re...

Embodiment 2

[0022] Example 2 as figure 1 As shown, it is improved on the basis of Example 1, and its high-precision thermogravimetric 3 when the temperature rises, impels potassium and chlorine to release from the biomass organic matrix combination, and transfers to the liquid tar phase, and more than half of the chlorine For further release, it is put into the gas phase in the form of HCI.

Embodiment 3

[0024] Example 3 as figure 1 As shown, it is improved on the basis of Embodiment 1, the air inlet of its nitrogen oxide generator 6 filter is connected with the gas source, and its output is connected to the nitric oxide generator through the air pump connected to it through the gas delivery pipe Connected, and connected to the nitrogen oxide proportional regulator through the output pipe of the nitric oxide generator and the flow meter connected thereto; finally output through the nitrogen oxide proportional regulator.

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Abstract

The invention discloses a biomass and coal mixed combustion auxiliary device of a boiler. The device comprises a CFB experiment table 1, a circulating fluidized bed boiler 2, a high-precision thermogravimetry device 3, an air distribution machine 4, a material distribution machine 5, a nitrogen oxide generator 6, and a biomass deposition collector 7, wherein one end of the high-precision thermogravimetry device 3 is fixedly connected with the air distribution machine 4 and the other end of the high-precision thermogravimetry device 3 is fixedly connected with the circulating fluidized bed boiler 2; main circuits of the CFB experiment table 1 operated by a digital display communicate with key portions of the circulating fluidized bed boiler 2, the high-precision thermogravimetry device 3, the air distribution machine 4, the material distribution machine 5, the nitrogen oxide generator 6 and the biomass deposition collector 7. By analyzing the chemical composition and corrosion mechanism of biomass deposition molecules and by sampling and analyzing the agricultural and forestry biomass to determine the corrosion mechanism of the biomass deposition, an anti-corrosion strategy for preventing alkali metals and a chlorine element is provided; since certain physical and chemical properties of a biomass fuel and coal have remarkable differences, operation safety of boiler equipment is guaranteed; and meanwhile, the combustion efficiency of the boiler is improved, emission of combustion pollutants is reduced and the operation level of the boiler is optimized.

Description

technical field [0001] The invention relates to the technical field of timely manufacturing of energy-saving and environment-friendly equipment, in particular to a combustion auxiliary equipment used for co-combusting biomass and coal in a boiler. Background technique [0002] Coal, oil, natural gas and other fossil fuels have been exploited on a large scale since the 1970s, and their reserves have decreased sharply. It is predicted that the exploitable fossil energy such as coal and oil on the earth will be depleted within 200 years and 30-40 years respectively, while natural gas can only be used for 60 years according to the reserve-production ratio. At present, the search for alternative energy sources has attracted widespread attention from the whole society. Biomass energy is a renewable energy with abundant sources. It is second only to coal, oil and natural gas and ranks fourth in the world's total energy consumption. At present, the consumption of biomass fuel has...

Claims

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Application Information

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IPC IPC(8): F23C10/22F23C10/28
Inventor 巨杰
Owner XIAN LIYUAN INTELLIGENT TECH
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