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Pulverized coal burner and boiler having same

A pulverized coal burner and pulverized coal technology, which is applied in the direction of burners, burners burning powder fuel, burning with various fuels, etc., to achieve the effects of improving performance, improving safety performance, and reducing heat loss

Active Publication Date: 2013-08-14
YANTAI LONGYUAN POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, prior art burners cannot meet these requirements

Method used

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  • Pulverized coal burner and boiler having same
  • Pulverized coal burner and boiler having same
  • Pulverized coal burner and boiler having same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The technical solution provided by the present invention will be described in detail below in conjunction with the accompanying drawings. The description in this part is only an exemplary and explanatory description, and should not have any limiting effect on the protection scope of the present invention.

[0039] It should be noted that: in this section, the axial direction is the direction consistent with the flow direction of the pulverized coal airflow in the internal combustion chamber, and the horizontal direction is the direction perpendicular to the axial direction; and taking the pulverized coal flow direction as a reference, the position close to the inlet of the internal combustion chamber is the front, The position away from the inlet of the internal combustion chamber is the rear.

[0040] figure 2 It shows the axial cross-sectional structure of the pulverized coal burner provided by Embodiment 1 of the present invention. The pulverized coal burner provid...

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Abstract

The invention discloses a pulverized coal burner and a boiler having the same. The pulverized coal burner comprises a heat source and an internal-combustion chamber for keeping the preset excess air coefficient of an internal pulverized coal air flow, wherein the heat source is positioned in the combustion chamber, and the internal-combustion chamber has an inlet and an outlet; and the heat source can light pulverized coal in the internal-combustion chamber and make the pulverized coal undergo reducing burning in the internal-combustion chamber; and the internal-combustion chamber comprises ametal outer cylinder and a ceramic liner. The ceramic material for making the liner of the pulverized coal burner has excellent high-temperature performance, and can retain corresponding mechanical performance under a continuous high-temperature condition; and the ceramic material has high thermal-insulation effect and can keep a higher temperature in the internal-combustion chamber of the pulverized coal burner.

Description

technical field [0001] The invention relates to a combustion device, in particular to a pulverized coal burner, and also to a boiler with the pulverized coal burner. Background technique [0002] The applicant provided a pulverized coal burner in another patent application titled "a pulverized coal burner and a boiler with the pulverized coal burner", please refer to figure 1 , which shows the structure of the pulverized coal burner provided by the above-mentioned invention. The pulverized coal burner includes a heat source 330 and an internal combustion chamber 320. The internal combustion chamber 320 has an inlet 101 and an outlet 102. The internal combustion chamber 320 forms a suitable space to maintain the internal pulverized coal flow with a predetermined excess air ratio. The inlet 101 of the internal combustion chamber 320 communicates with the primary air pulverized coal pipeline, and the pulverized coal airflow enters the internal combustion chamber 320 through th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23D1/00F23C5/08
Inventor 王雨勃龚泽儒程昌业
Owner YANTAI LONGYUAN POWER TECH
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