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A Wall Type Arrangement Direct-flow Pulverized Coal Combustion Device Used in Pulverized Coal Industrial Boiler

An industrial boiler and pulverized coal combustion technology, which is applied to the combustion of block fuel and powder fuel, the combustion of liquid fuel and powder fuel, the combustion of gaseous fuel and powder fuel, etc., can solve the problem of coal pulverized industrial boiler Slag, high temperature corrosion and other problems

Active Publication Date: 2016-05-11
芮城县丰蕴热力有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention overcomes the deficiencies in the prior art, solves the problems of slagging and high-temperature corrosion in the existing pulverized coal industrial boilers, and provides a wall-type arrangement direct-current pulverized coal combustion device for pulverized coal industrial boilers

Method used

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  • A Wall Type Arrangement Direct-flow Pulverized Coal Combustion Device Used in Pulverized Coal Industrial Boiler
  • A Wall Type Arrangement Direct-flow Pulverized Coal Combustion Device Used in Pulverized Coal Industrial Boiler
  • A Wall Type Arrangement Direct-flow Pulverized Coal Combustion Device Used in Pulverized Coal Industrial Boiler

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Embodiment Construction

[0021] Such as figure 1 — image 3 As shown, a wall-type arrangement direct-flow pulverized coal combustion device for a pulverized coal industrial boiler includes a furnace body 1, and the furnace body includes a front wall 11, a rear wall 12 and a furnace 2 formed inside the furnace body. Both the front wall 11 and the rear wall 12 are equipped with at least one direct current burner 3 communicating with the furnace 2 , and the direct current burner 3 of the front wall 11 and the direct current burner 3 of the rear wall 12 are opposite to each other.

[0022] The once-through burner 3 includes a plurality of primary air nozzles 31 and a plurality of secondary air nozzles 32, the number of the secondary air nozzles 32 is one more than the number of the primary air nozzles 31, the primary air nozzles 31 and the The secondary sub-spouts 32 are arranged at intervals up and down.

[0023] A DC burner 3 is installed on the front wall and the rear wall.

[0024] Two DC burners 3...

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Abstract

The invention relates to a wall type arrangement direct-current pulverized coal combustion technology used for an industrial pulverized coal boiler, and belongs to the pulverized coal boiler filed. The problems of slag bonding and high temperature corrosion of present industrial pulverized coal boilers are solved in the invention. The boiler comprises a boiler body, the boiler body comprises a front wall, a rear wall and a hearth formed in the boiler body, each of the front wall and the rear wall is provided with at least one direct current combustor connected with the hearth, and the direct current combustor of the front wall is arranged facing to the direct current combustor of the rear wall. The wall type arrangement direct-current pulverized coal combustion technology can avoid the slag bonding caused by the phenomena comprising too large tangent circle and deflective wall attachment, and has low requirements on the shape of the cross section of the hearth because of the wall type arrangement combustion mode, so with the increase of capacity of a set, the width of the hearth needs to be increased, there is no need to increase the depth of the hearth, the capacity of the boiler is not restricted by the sectional area of the hearth, and it is convenient to carry out the arrangement of the heated surface of a tail portion.

Description

technical field [0001] The invention relates to a wall-type arrangement direct current pulverized coal combustion device for a pulverized coal industrial boiler, belonging to the field of pulverized coal boilers. Background technique [0002] The pulverized coal burner is a key component of the pulverized coal industrial boiler combustion equipment. Its main function is to deliver fuel and air to the furnace, and to organize reasonable mixing and combustion. Its main evaluation indicators are high efficiency, stable combustion, low nitrogen, and prevent The occurrence of slagging and other situations; at present, pulverized coal burners are mainly divided into two categories: direct flow and swirling flow. The flow pulverized coal burner usually adopts the wall layout. Although there are some self-developed products in our country, the swirl burner is still in the stage of introduction, digestion and absorption. [0003] my country's pulverized coal furnaces most often adop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23C5/28F23D1/00
Inventor 王欢王民发郎鹏德郎凤娥赵景吴少华
Owner 芮城县丰蕴热力有限公司
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