Burner capable of adjusting position of girdling type structure

A burner, adjustable technology, applied in the direction of solid fuel combustion, burner, combustion method, etc., can solve the problems of short residence time in the furnace, insufficient combustion, low combustion efficiency, etc.

Pending Publication Date: 2021-05-18
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] To sum up, at present, the furnace structure of most burners is a straight cylindrical design. During the fuel combustion process of this structure, a large amount of fly ash is easily discharged out of the furnace under the flue gas, resulting in a long residence time in the furnace. Short, insufficient combustion, low combustion efficiency

Method used

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  • Burner capable of adjusting position of girdling type structure
  • Burner capable of adjusting position of girdling type structure
  • Burner capable of adjusting position of girdling type structure

Examples

Experimental program
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Effect test

Embodiment 1

[0075] A company needs to use a burner to burn different types of biomass, and NO in the flue gas at the outlet of the burner x Content and fly ash content need to be strictly controlled to meet national requirements. Because the amount of fly ash produced when different types of biomass are burned is different from the degree of adequacy of burning, so the height of the waist-shaped structure needs to be adjusted when each type of biomass is burned. In this way, the biomass can be fully burned, the burning residence time is prolonged, and the amount of fly ash produced during burning is the smallest.

[0076] When using the burner of the present invention for fuel combustion, the biomass enters the lower combustion chamber 2 from the fuel inlet, ignites and starts to burn after mixing with air, and the special waist structure 4 can effectively block most of the unburned fly ash to reduce the fly ash content at the outlet of the burner; at the same time, the cyclone separator...

Embodiment 2

[0078] An enterprise is close to farmland and mainly uses straw biomass as fuel. Due to the characteristics of high alkali metal content and high volatile content of straw biomass, problems such as grate, ash on the heated area and slagging are prone to occur during combustion. Therefore, when burning fuel, it is necessary to consider not only the pollution to the environment, but also the problem of easy slagging of straw biomass burning. A large number of studies have proved that when biomass is burned, appropriately reducing the combustion temperature in the burner can effectively reduce the slagging rate, and the combustion temperature of the burner can be controlled by controlling the air distribution.

[0079] When using the burner of the present invention for fuel combustion, straw-like biomass fuel enters the lower combustion chamber 2 from the fuel inlet 1, and starts to ignite and burn after mixing with air. The burner is designed with an upper secondary air duct 12...

Embodiment 3

[0081] A company is using a garbage incinerator to burn different types of garbage with different moisture content every day. Because of the wide variety of garbage, high moisture content, and poor combustion characteristics, a large amount of smoke of harmful substances will be produced during combustion. At the same time, the unburned fly ash and polluted gases at the outlet of the burner have high content, which will cause great harm to the environment.

[0082] When using the burner of the present invention to burn waste fuel, the problems of poor ignition characteristics, unstable combustion, or too low combustion temperature can be effectively improved by regulating the secondary air of the burner. The specific method is: open the oxygen tank valve 21, control the oxygen intake, and along with the increase of the oxygen concentration, the oxygen and CO 2 The CO separated in the separation device 10 2 It is mixed at the outlet of the fan 11 and blown into the interior of...

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PUM

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Abstract

The invention provides a burner capable of adjusting the position of a girdling type structure. The burner comprises a machine body, the machine body is internally provided with the girdling type structure capable of moving up and down, the inside of the machine body is divided into an upper burning chamber and a lower burning chamber by the girdling type structure, the machine body is provided with a fuel inlet in the lower burning chamber, the upper burning chamber of the machine body is provided with a first burner outlet, the upper burning chamber of the machine body is provided with a second burner outlet, the second burner outlet is connected with a cyclone separator, the cyclone separator is connected with a flue gas pretreatment device, the flue gas pretreatment device is connected with a CO2 separation device, the CO2 separation device is connected with a fan, and the fan communicates with the lower burning chamber through an upper secondary air pipe and a lower secondary air pipe. The burning effect of the burner during burning can be adjusted; in addition, the content of fly ash and pollutants at the fire outlet of the burner can be reduced, and the purpose of clean burning is achieved.

Description

technical field [0001] The invention belongs to the technical field of fuel combustion equipment, and in particular relates to a burner capable of adjusting the position of a waist-shaped structure. Background technique [0002] A burner, also called a burner, is a device for burning fuel. In a broad concept, household water heaters, gas stoves, and even lighters can all be considered as a kind of burner. According to the working principle of the burner, it can be defined as a kind of equipment that converts substances into heat energy through combustion, that is, fuel and oxygen are mixed in an appropriate proportion through a premixing device to make them fully combustible. [0003] Burners are widely used in light industry, building materials, metallurgy, chemical industry, medicine, textile, ceramics, glass and other industrial fields. According to their different attributes, they have many different classification methods. [0004] According to the fuel method, burner...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23B40/00F23D11/00F23D14/00F23K3/00F23K5/00F23J15/02F23L5/02
CPCF23B40/00F23D11/00F23D14/00F23K3/00F23K5/00F23J15/02F23L5/02
Inventor 柳善建王帅超李志合易维明李永军蔡红珍
Owner SHANDONG UNIV OF TECH
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