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Combined pulverized coal burner comprising an integrated pilot burner

A combination of burner and burner technology, applied in the direction of gas fuel burner, burner, burner, etc., can solve the problems of damaging the operation safety, destroying the burner channel, etc., and achieve the effect of ensuring the function

Active Publication Date: 2009-04-08
西门子能源全球两合公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This entails a great danger that flashbacks can occur in the burner channel when the flow velocity changes, as occurs during start-up and shutdown, which can destroy the burner channel and greatly impair operational safety

Method used

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  • Combined pulverized coal burner comprising an integrated pilot burner

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Embodiment Construction

[0044] The coal-dust combined burner according to the present invention comprises a centrally arranged pilot combustion device with separate gas and oxidant delivery in separate pipes and a flame monitoring device and electric high voltage ignition device. Around these components there is an annular chamber 13 for supplying oxidant to the coal-dust combination burner. Rotating vanes 14 for swirling the oxidant flow are mounted on the annular discharge opening.

[0045] The outer cooling element 5 of the central pilot burner and the inner cooling element 18 of the outer main burner form the main burner oxidant channel 17 . Around this main burner oxidizer channel and the inner cooling element 18 are provided a soot conveying device 15 and a cooled outer casing 16 of the main burner.

[0046] The pilot burner includes a pipe 1 for spraying inert gas in the center, an annular chamber 2 for delivering gas around the central pipe, another annular chamber 3 for delivering oxidant...

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Abstract

The invention comprises a combination burner for the gasification of pulverized fuels with an oxidation means containing free oxygen at ambient or higher pressures, as well as temperatures between 800-1800 DEG C., with the ignition device of the pilot burner with flame monitoring and the pulverized fuel burner being integrated as a combination burner and all operating channels being routed separately from each other up to the mouth of the burner and the media carried by the channels only being mixed at the mouth of the burner. When the pilot burner is dismantled the eddy bodies 14 attached to its sleeve in the main burner oxidation means supply 17 can be exchanged quickly and easily and thus the main burner flame adapted in the optimum way to the reaction chamber contour of the reactor.

Description

technical field [0001] The invention relates to a coal dust combined burner. The combined burner is used for the oxy-gasification of pulverized fuels (lignite and / or anthracite or similar pulverized fuels) at high pressure and temperature in a reactor with fluid slagging, and with the aid of gaseous fuel and The integrated pilot burner operated by oxygen is put into operation and monitored by means of electric ignition and optical flame monitoring. [0002] The present invention relates to a method for the gasification of dust-like fuels for the gasification of an oxidant containing free oxygen at a pressure between ambient pressure and a high pressure of 80 bar (8 MPa) and at a temperature between 800 and 1800 °C Combined burner. The combination burner has the features of claim 1 . Background technique [0003] Coal dust burners are known for partially oxidized pulverized fuels which are ignited by externally arranged pilot burners. [0004] In patent document DD 285 52...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D1/02
CPCY02E20/344F23D1/00F23D2207/00F23D2201/10F23D14/78F23D2900/00018F23D17/005F23D2201/30F23D14/22
Inventor T·朱斯特C·鲁瑟M·欣格尼茨
Owner 西门子能源全球两合公司
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