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Connecting device, pulverized coal burner sprayer assembly and assembly and replacement methods

A pulverized coal burner and connection device technology, applied in the direction of combustion method, burner for burning powder fuel, burner, etc., can solve problems such as connection and assembly difficulties, solve assembly and disassembly difficulties, facilitate positioning and installation, and reduce The effect of scrap rate

Inactive Publication Date: 2020-06-05
佛山兴技源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of difficult connection and assembly between the nozzle head of the pulverized coal burner and the ferroalloy main workpiece of the pulverized coal burner made of high-temperature-resistant and abrasion-resistant materials, the present invention provides a connecting device for eliminating the nozzle nozzle of the pulverized coal burner and the ferroalloy main workpiece Destructive due to thermal expansion and ease of assembly and disassembly of pulverized coal burner nozzles

Method used

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  • Connecting device, pulverized coal burner sprayer assembly and assembly and replacement methods
  • Connecting device, pulverized coal burner sprayer assembly and assembly and replacement methods
  • Connecting device, pulverized coal burner sprayer assembly and assembly and replacement methods

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Such as figure 1 As shown, the connecting device provided in this embodiment is used to realize the pulverized coal burner nozzle 1 and the iron alloy body of the pulverized coal burner made of high-temperature and abrasion-resistant materials (for example, reaction sintered silicon carbide ceramic materials, alumina ceramic materials) The connection and assembly of the work piece 6 includes a ferroalloy connecting ring 2 with an outer diameter that matches the ferroalloy main body work piece 6, a plurality of ferroalloy cantilever connectors 3 with better elasticity arranged on the ferroalloy connecting ring 2, and used to realize the ferroalloy cantilever connector 3 The first fixing member 4 connected with the pulverized coal burner nozzle 1 and the second fixing member 5 for connecting the ferroalloy cantilever connecting member 3 and the ferroalloy connecting ring 2.

[0048] In order to facilitate the assembly and positioning, and make the structure compact after asse...

Embodiment 2

[0059] The difference between this embodiment and embodiment 1 is that only one end of the ferroalloy cantilever connector 3 is provided with a first fixing member assembly hole 22, and an arc-shaped welding groove 21 is machined on the upper surface of the other end, such as figure 2 As shown in (b); correspondingly, the second cantilever fixing hole 10 does not need to be machined in the second cantilever groove 9 on the ferroalloy connecting ring 2.

[0060] Such as image 3 As shown, the assembly process of this embodiment is basically the same as that of Embodiment 1, except that the other end of the ferroalloy cantilever connector 3 is welded into the second cantilever groove 9 of the ferroalloy connecting ring 2.

[0061] When the nozzle 1 of the pulverized coal burner needs to be replaced, the disassembly and replacement process of this embodiment is the same as that of the first embodiment.

Embodiment 3

[0063] The difference between this embodiment and embodiment 2 is only: the form of the welding groove 21 at the end of the ferroalloy cantilever connector 3 is different, such as figure 2 As shown in (c), in this embodiment, the welding groove 21 at the end of the ferroalloy cantilever connector 3 is a straight groove; correspondingly, the ferroalloy connecting ring 2 omits the second cantilever groove 9, but is in the ferroalloy connecting ring 2. The end of the welding groove 42 corresponding to the welding groove 21 is processed.

[0064] Such as Figure 4 As shown, the assembly process of this embodiment is basically the same as that of Embodiment 2, except that the other end of the ferroalloy cantilever connector 3 is directly welded to the end of the ferroalloy connecting ring 2.

[0065] This embodiment can only realize the replacement of the entire pulverized coal burner nozzle assembly, and the replacement method is the same as the first embodiment.

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Abstract

The invention provides a connecting device, a pulverized coal burner sprayer assembly and assembly and replacement methods in order to solve the problems that a pulverized coal burner sprayer made ofa high-temperature-resistant and abrasion-resistance material and an iron alloy body workpiece of a pulverized coal burner are difficultly connected and assembled. The connecting device is used for connecting the pulverized coal burner sprayer and the iron alloy body workpiece of the pulverized coal burner. The connecting device comprises an iron alloy connecting ring with the external diameter matched with the external diameter of the iron alloy body workpiece and multiple iron alloy cantilever connecting parts arranged on the iron alloy connecting ring in the circumferential direction at intervals. The ends, stretching out of the iron alloy connecting ring, of the iron alloy cantilever connecting parts are used for being connected with the pulverized coal burner sprayer. The end, away from the iron alloy cantilever connecting parts, of the iron alloy connecting ring is used for being connected with the iron alloy body workpiece. Collapsing force generated by the fact that the thermalexpansion size difference between the iron alloy body workpiece and the pulverized coal burner sprayer changes is eliminated, it is guaranteed that the pulverized coal burner sprayer stably works fora long time, and convenience is brought to mounting and dismounting of the pulverized coal burner sprayer.

Description

Technical field [0001] The invention relates to a connecting device for assembling a pulverized coal burner nozzle and a pulverized coal burner ferroalloy (steel) main workpiece, and a pulverized coal burner nozzle assembly including the connecting device and an assembly and replacement method thereof. Background technique [0002] With the advancement of science and technology and the increasing requirements for energy conservation and emission reduction, enterprises that rely on pulverized coal as fuel are making unremitting efforts to improve their energy conservation and emission reduction capabilities. At present, the latest pulverized coal burners have been improved in terms of nozzles and injected gas, which have significantly improved the production efficiency, energy saving and emission reduction effects, and brought great benefits to companies that rely on pulverized coal as fuel. prospect. However, due to the high temperature of the working environment of the new pulv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D1/00
CPCF23D1/00
Inventor 朱胜利
Owner 佛山兴技源科技有限公司
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