CN1355399A - Multi-channel cyclonic nozzle of water-coal slurry - Google Patents
Multi-channel cyclonic nozzle of water-coal slurry Download PDFInfo
- Publication number
- CN1355399A CN1355399A CN 00132569 CN00132569A CN1355399A CN 1355399 A CN1355399 A CN 1355399A CN 00132569 CN00132569 CN 00132569 CN 00132569 A CN00132569 A CN 00132569A CN 1355399 A CN1355399 A CN 1355399A
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- sleeve
- mixing
- mixing drum
- conical surface
- swivel nut
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Abstract
A multi-channel cyclonic mixing nozzle of water-coal slurry is composed of sleeve pipe, multi-jet screwed sleeve, mixing barrel with steam inlets, middle sleeve pipe with oblique steam inlets, stirring sleeve pipe, and impact plate installed in multi-jet screwed sleeve. Its can decrease the carbon content in flyash generated by coal combustino to 4% or lower, high combustion efficiency and low cost.
Description
The present invention relates to nozzle arrangements, the high multi-channel cyclonic nozzle of water-coal slurry of especially a kind of efficiency of combustion.
Boiler adopts the water-coal-slurry spray burning, can improve efficiency of combustion, energy savings.The water-coal-slurry spray burning need use the coal-water slurry nozzle that can make the water-coal-slurry atomizing.Yet existing coal-water slurry nozzle atomizing effect is all undesirable.The quality of efficiency of combustion shows on the unburned carbon in flue dust.Existing coal-water slurry nozzle, unburned carbon in flue dust can only maintain below 7% behind the water-coal-slurry spray burning, and not only energy utilization rate is not high, and a large amount of flying dusts after the burning are difficult to utilize, and is a kind of waste, can cause severe contamination to environment again.
The objective of the invention is at present existing coal-water slurry nozzle atomizing effect undesirablely, efficiency of combustion is low, and the problem that unburned carbon in flue dust is high provides a kind of atomizing effect good, efficiency of combustion height, the multi-channel cyclonic nozzle of water-coal slurry that unburned carbon in flue dust is low.
Multi-channel cyclonic nozzle of water-coal slurry of the present invention comprises sleeve, multi-port swivel nut, mixing drum, intermediate sleeve, mixes sleeve and shock plate.The front end of sleeve is provided with external screw thread, and the rear end is provided with internal thread.The tapered body of multi-port swivel nut, the conical surface are provided with along the circumferential uniform spout vertical with the conical surface.Wear-resisting spout lining is housed in the spout.Shock plate is loaded on top in the multi-port swivel nut by screw.The multi-port swivel nut is connected with the external screw thread of barrel forward end by internal thread.Seal washer is equipped with in multi-port swivel nut and sleeve junction.Mixing drum is Laval nozzle shape.The arrival end of mixing drum is a converging portion, and the port of export is a diffuser, and the centre is a throat.The mixing drum arrival end is provided with the flange shape annulus that cooperates with the sleeve endoporus.Flange shape annulus is along circumferential uniform admission opening.The diffuser of mixing drum is evenly equipped with the air admission hole vertical with the conical surface along the conical surface.Mixing drum diffuser front portion is a mixing chamber.The mixing drum lining is housed in the mixing chamber, and mixing drum throat lining is equipped with in throat.The intermediate sleeve that endoporus is convergent contour is equipped with in the front portion of mixing chamber.The intermediate sleeve front end is a cone, and the rear end is a flange body, and flange body is along circumferential uniform oblique admission opening.Oblique admission opening is along peripheral, oblique.The intermediate sleeve lining is housed in the intermediate sleeve.The front end of intermediate sleeve is for mixing sleeve.An end of mixing sleeve is an inner conical surface, forms a taper slit between the male cone (strobilus masculinus) of this inner conical surface and intermediate sleeve.Mix sleeve the wear-resisting sleeve bushing of mixing is housed.The front end of mixing sleeve cooperates with the ring-shaped step of sleeve endoporus front portion seal washer is housed therebetween.
Internal thread and the internal thread at mixing drum rear portion of multi-channel cyclonic nozzle of water-coal slurry by the sleeve rear portion overlaps and is connected with the external screw thread of interior cover respectively with in the barral of a gun, and is placed in the overcoat of barral of a gun.
In multi-channel cyclonic nozzle of water-coal slurry when work,, water-coal-slurry is walked internal channel, earlier by the converging portion of mixing drum through throat, enter the diffuser of mixing drum again, the water-coal-slurry motion is quickened.Steam is walked outer tunnel, enters the mixing chamber of mixing drum by the admission opening of admission opening on the mixing drum flange annulus and mixing drum diffuser, in mixing chamber with quicken after water-coal-slurry mix.This is the mixed once of water-coal-slurry in mixing drum.Oblique admission opening and the taper slit of the steam that advances in outer tunnel on intermediate sleeve enters the stirring sleeve, continuing powerful rotation with the once mixed water-coal-slurry in stirring the sleeve mixing chamber mixes, and acceleration shock shock plate, make that water-coal-slurry and steam are more abundant to be mixed, at last by a plurality of spouts ejections.
Advantage of the present invention is, atomizing effect is good, the efficiency of combustion height, and the unburned carbon in flue dust after the burning is low, and unburned carbon in flue dust has not only improved energy utilization rate below 4%, and flying dust can be used as cement raw material, both avoids waste, and helps environmental protection again.
Fig. 1 is a structural map of the present invention.
The invention will be further described below in conjunction with embodiment shown in the drawings:
As shown in Figure 1, multi-channel cyclonic nozzle of water-coal slurry of the present invention comprises sleeve 6, multi-port swivel nut 1, mixing drum 12, intermediate sleeve 10, mixes sleeve 8 and shock plate 3.The front end of sleeve 6 is provided with external screw thread, and the rear end is provided with internal thread.Multi-port swivel nut 1 tapered body, the conical surface are provided with along the circumferential uniform spout 31 vertical with the conical surface.Spout 31 is generally 8-20.Wear-resisting spout lining 4 is housed in the spout 31.Shock plate 3 is loaded on top in the multi-port swivel nut 1 by screw 2.Multi-port swivel nut 1 is connected by the external screw thread of internal thread with sleeve 6 front ends.Multi-port swivel nut 1 is equipped with seal washer 5 with the sleeve junction.Mixing drum 12 is Laval nozzle shape.The arrival end of mixing drum 12 is a converging portion 22, and the port of export is a diffuser 24, and the stage casing is a throat 23.Mixing drum 12 arrival ends are provided with the flange shape annulus 20 that cooperates with sleeve 6 endoporus.Flange shape annulus 20 is along being circumferentially with admission opening 21.The diffuser 24 of mixing drum circumferentially is furnished with the air admission hole vertical with the conical surface 25 along the conical surface.Mixing drum diffuser 24 front portions are mixing chamber 26, in the mixing chamber 26 of mixing drum mixing drum lining 13 are housed, and mixing drum throat lining 14 is equipped with in throat 23.The intermediate sleeve 10 that endoporus is convergent contour is equipped with in mixing drum mixing chamber 26 front portions.Intermediate sleeve 10 front ends are cone, and the rear end is a flange body, and flange body is along circumferential uniform oblique admission opening 27.Oblique admission opening 27 is along peripheral, oblique, and the angle of inclination is generally 45 °-60 °.Intermediate sleeve lining 11 is housed in the intermediate sleeve 10.The front end of intermediate sleeve 10 is for mixing sleeve 8.An end of mixing sleeve 8 is an inner conical surface, forms a taper slit 28 between the male cone (strobilus masculinus) of this inner conical surface and intermediate sleeve 10.Mix the wear-resisting sleeve bushing 9 of mixing is housed in the sleeve 8.The front end of mixing sleeve 8 cooperates with the ring-shaped step of sleeve 6 endoporus front portions, and seal washer 7 is housed therebetween.
Multi-channel cyclonic nozzle of water-coal slurry is connected with the middle cover 18 of barral of a gun and the external screw thread of interior cover 17 respectively by the internal thread at sleeve 6 rear portions and the internal thread at mixing drum 12 rear portions, and is placed in the overcoat 19 of barral of a gun.The middle cover 18 of sleeve 6 rear portions and mixing drum 12 rear portions and barral of a gun and the junction of interior cover 17 are respectively equipped with seal washer 15 and seal washer 16.
Claims (1)
1. a multi-channel cyclonic nozzle of water-coal slurry is characterized in that: comprise sleeve, multi-port swivel nut, mixing drum, intermediate sleeve, mix sleeve and shock plate; The front end of sleeve is provided with external screw thread, and the rear end is provided with internal thread; The tapered body of multi-port swivel nut, the conical surface are provided with along the circumferential uniform spout vertical with the conical surface, and wear-resisting spout lining is housed in the spout; Shock plate is loaded on top in the multi-port swivel nut by screw; The multi-port swivel nut is connected with the external screw thread of barrel forward end by internal thread, and seal washer is equipped with in multi-port swivel nut and sleeve junction; Mixing drum is Laval nozzle shape, and the arrival end of mixing drum is a converging portion, and the port of export is a diffuser, and the centre is a throat; The mixing drum arrival end is provided with the flange shape annulus that cooperates with the sleeve endoporus, and flange shape annulus is along circumferential uniform admission opening; The diffuser of mixing drum is along the circumferential uniform air admission hole vertical with the conical surface of the conical surface, and mixing drum diffuser front portion is a mixing chamber, and the mixing drum lining is housed in the mixing chamber, and mixing drum throat lining is equipped with in throat; The intermediate sleeve that endoporus is convergent contour is equipped with in the mixing chamber front portion, and the intermediate sleeve front end is a cone, and the rear end is a flange body, and flange body is along circumferential uniform oblique admission opening, and oblique admission opening is equipped with the intermediate sleeve lining along peripheral, oblique in the intermediate sleeve; The front end of intermediate sleeve is for mixing sleeve, and an end of mixing sleeve is an inner conical surface, forms a taper slit between the male cone (strobilus masculinus) of this inner conical surface and intermediate sleeve; Mix sleeve the wear-resisting sleeve bushing of mixing is housed; The front end of mixing sleeve cooperates with the ring-shaped step of sleeve endoporus front portion, and seal washer is housed therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00132569 CN1355399A (en) | 2000-11-29 | 2000-11-29 | Multi-channel cyclonic nozzle of water-coal slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00132569 CN1355399A (en) | 2000-11-29 | 2000-11-29 | Multi-channel cyclonic nozzle of water-coal slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1355399A true CN1355399A (en) | 2002-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00132569 Pending CN1355399A (en) | 2000-11-29 | 2000-11-29 | Multi-channel cyclonic nozzle of water-coal slurry |
Country Status (1)
| Country | Link |
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| CN (1) | CN1355399A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352741A (en) * | 2011-10-30 | 2012-02-15 | 中国石油天然气集团公司 | Underground separated coupling and nozzle hydraulic mixer |
| CN105240814A (en) * | 2015-11-14 | 2016-01-13 | 沈阳思达机械设备有限公司 | High-temperature and high-pressure steam generation device |
| US10287522B2 (en) | 2013-01-31 | 2019-05-14 | General Electric Company | System and method for preparing coal water slurry |
-
2000
- 2000-11-29 CN CN 00132569 patent/CN1355399A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352741A (en) * | 2011-10-30 | 2012-02-15 | 中国石油天然气集团公司 | Underground separated coupling and nozzle hydraulic mixer |
| CN102352741B (en) * | 2011-10-30 | 2014-04-02 | 中国石油天然气集团公司 | Underground separated coupling and nozzle hydraulic mixer |
| US10287522B2 (en) | 2013-01-31 | 2019-05-14 | General Electric Company | System and method for preparing coal water slurry |
| CN105240814A (en) * | 2015-11-14 | 2016-01-13 | 沈阳思达机械设备有限公司 | High-temperature and high-pressure steam generation device |
| CN105240814B (en) * | 2015-11-14 | 2017-09-19 | 沈阳思达机械设备有限公司 | A kind of high temperature and high pressure steam generating means |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |