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Conic spiral sprayer for desulfurizing and dusting and its making methd and mould

A technology for desulfurization, dust removal, and spiral nozzles is applied in separation methods, chemical instruments and methods, and injection devices. Excellent fogging performance and good fogging effect

Inactive Publication Date: 2006-11-15
蒋龙福
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the spiral spray grooves of the above-mentioned metal conical spiral nozzles are formed by cutting and finishing one by one. Not only is it difficult to process the complex line shape of the spray grooves, but the production efficiency of cutting and finishing one by one is low, and the price of precious metals is high, and the cutting process wastes materials. As a result, the cost of the nozzle is relatively high
Secondly, after the nozzle groove of the metal nozzle is worn out, the nozzle will expand, the fogging performance will decrease, and water and electricity will be wasted.
Some materials with good performance have not been applied due to the complex line shape of the nozzle groove and are difficult to process. At present, such nozzles at home and abroad are still mainly made of metal materials, and there has been no breakthrough in the industry.

Method used

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  • Conic spiral sprayer for desulfurizing and dusting and its making methd and mould
  • Conic spiral sprayer for desulfurizing and dusting and its making methd and mould
  • Conic spiral sprayer for desulfurizing and dusting and its making methd and mould

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Embodiment 1

[0015] Embodiment 1: See the accompanying drawings, the conical spiral nozzle 1 is formed by grouting and sintering of alumina ceramics, the front section is composed of spiral spray grooves 2 rotating alternately to form a conical structure, and the rear part of the nozzle has a tightening nut 3 and a connecting external thread 4 . The combined disassembly mold of the grouting molding is composed of a tapered mandrel 14 and a combined outer mold with a positioning shoulder 13 integrally matched with the inner hole of the nozzle. Combined external mold (such as figure 2 ) from bottom to top in turn by the lower positioning locking ring cover 12, the thread forming ring 11 with internal threads, the nut forming ring 9 with positioning locking concaves 8, 10 at the upper and lower ends, and the four-lobe combination ( image 3 , 4 ) has a spiral groove forming block 7, and the upper positioning locking ring cover 6 sets are inserted. The upper positioning locking ring cover ...

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Abstract

The invention relates to the improvement of the conical spiral spray nozzle, the manufacturing method and the mould, which are used for wet desulfurization and dust removal of fuel boiler flue gas with a large amount of smoke and dust. The obtained ceramic nozzle overcomes the inherent defects of the metal nozzle, has the advantages of simple manufacture, low cost, excellent performance, temperature resistance, corrosion resistance and wear resistance, and is the most ideal nozzle for wet desulfurization and dust removal of smoke and dust.

Description

technical field [0001] The invention relates to the improvement of a spray nozzle for wet desulfurization and dust removal of fuel boiler flue gas with a large amount of smoke and dust, as well as a manufacturing method and a mold. Background technique [0002] The conical spiral nozzle for wet desulfurization and dust removal with a large amount of smoke and dust is used in a high-temperature and highly corrosive working environment, and the spray liquid is mixed with fine particles, such as calcium hydroxide or coal slag powder, so the overall performance of the nozzle is affected. The requirements are higher, such as the temperature resistance of the nozzle is required to be above 200-300 °C, and it is resistant to weak acids and alkalis, and is resistant to erosion and wear of solid phase materials. At present, the conical spiral nozzle is usually made of metal processing due to its special structure, such as the head of the water wind nozzle described in Chinese patent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B1/02B29C45/00B29C45/26C04B35/10B01D47/06B01D53/79
Inventor 蒋龙福
Owner 蒋龙福
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