CN203043833U - Novel double fluid denitrifying spray gun - Google Patents
Novel double fluid denitrifying spray gun Download PDFInfo
- Publication number
- CN203043833U CN203043833U CN 201220725181 CN201220725181U CN203043833U CN 203043833 U CN203043833 U CN 203043833U CN 201220725181 CN201220725181 CN 201220725181 CN 201220725181 U CN201220725181 U CN 201220725181U CN 203043833 U CN203043833 U CN 203043833U
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- Prior art keywords
- nozzle
- spray gun
- spray
- injecting
- denitrifying
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Abstract
The utility model belongs to the technical field of cement denitrification, and in particular relates to a novel double fluid denitrifying spray gun. In the prior art, the spray gun under high temperature environment works continuously and is overlarge in flow, and atomizes the reductant inadequately. In order to solve the problems in the prior art, the technical scheme is that the novel double fluid denitrifying spray gun comprises a nozzle, a welding water-gas joint and a gun tube sequentially connected. The gun tube comprises an air tube and a liquid tube. The nozzle consists of an injecting main body, a fixed bolt and a nozzle embedding sleeve connected. The injecting main body is provided with a gas injecting guide and an injecting liquid inlet tube. The gas injecting guide and the injecting liquid inlet tube are respectively communicated with the air outlet circular groove on the welding water-gas joint and the liquid inlet tube of the welding water-gas joint. The nozzle is internally provided with a mixing chamber and a target. A plurality of spray holes are arranged at the front end of the nozzle. The novel double fluid denitrifying spray gun provided by the utility model atomizes more adequately, and the reducing efficiency is improved.
Description
Technical field
The utility model belongs to cement denitration technology field, is specifically related to a kind of novel two-fluid denitration spray gun.
Background technology
Because the cement denitration reaction mainly occurs in the dore furnace, and temperature is higher in the dore furnace, and usually at 850 ℃ ~ 1100 ℃, existing spray gun can't satisfy the demand of decomposing furnace high-temperature.And present spray gun generally to be suitable for flow-rate ratio bigger, being applied in cement denitration industry can't atomize fully to reducing agent, causes reducing agent and NOX to react insufficient, denitration efficiency is not high, and causes the escaping of ammonia easily.
The utility model content
The purpose of this utility model provides a kind of novel two-fluid denitration spray gun, can't be excessive in continuous firing under the hot environment and flow to solve prior art, and to the reducing agent inadequate problem that atomizes.
For solving the problem that prior art exists, the technical scheme that the utility model provides is: a kind of novel two-fluid denitration spray gun, comprise the shower nozzle that connects successively, welding aqueous vapor joint and gun barrel, gun barrel comprises tracheae and liquid pipe, its special character is: be with rotary flange stroke limit piece on the described gun barrel successively, rotary flange, the seal welding flange, spring and adpting flange, described shower nozzle is by jet body, set bolt is nested with nozzle to be connected to form, offer on the jet body and jetly lead and spray feed tube, jet lead and spray feed tube communicate with the feed tube that goes out compression and weld the aqueous vapor joint on the welding aqueous vapor joint respectively, be provided with mixing chamber and target in the nozzle, spray nozzle front end offers some spray orifices.
The beneficial effects of the utility model are:
(1) high temperature resistant, corrosion-resistant, can be in dore furnace continuous firing under 850 ℃ ~ 1100 ℃ the temperature, long service life.
(2) reducing agent atomizing fully, the atomizing particle particle diameter is little, can reach 80 ~ 150 μ m, spray-cone angle is 55 ~ 60 °, area coverage and little atomizing particle promote more fully contacting of NOX in reductant solution and the flue gas and mix the raising reduction efficiency on a large scale.
(3) gun traffic is little, is about 100kg/h ~ 300kg/h, can guarantee the reasonable utilization of reducing agent.In addition, can satisfy at dore furnace and carry out the demand that multiple spot is arranged, avoid because the calciner temperature field distribution is inhomogeneous, change rapidly at short notice and cause the denitration efficiency instability.
(4) spray gun adopts and divides body structure, and is detachable, is convenient to change and cleaning.
Description of drawings
Fig. 1 is this utility model two-fluid denitration spray gun schematic diagram;
Fig. 2 is each parts assembling schematic diagram of shower nozzle of novel two-fluid denitration spray gun;
Fig. 3 is the sectional view of welding aqueous vapor joint;
Wherein, 1. shower nozzle 2. welds aqueous vapor joint, 3. tracheae, 4. liquid pipe, 5. rotary flange stroke limit piece, 6. rotary flange, 7. seal welding flange, 8. spring, 9. adpting flange, 10. air inlet pipe, 11. feed tubes, 12. nozzle, 13. set bolts, 14. jet body, 15. jet leading, 16. the injection feed tube, 17. mixing chambers, 18. spray orifices, 19. target, 20. go out compression, the feed tube of 21. welding aqueous vapor joints.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated:
With reference to Fig. 1 ~ 3, a kind of novel two-fluid denitration spray gun, comprise the shower nozzle 1 that connects successively, welding aqueous vapor joint 2 and gun barrel, gun barrel comprises tracheae 3 and liquid pipe 4, be with rotary flange stroke limit piece 5 on the described gun barrel successively, rotary flange 6, seal welding flange 7, spring 8 and adpting flange 9, described shower nozzle is by jet body 14, set bolt 13 and nozzle 12 nested connecting to form, offer on the jet body 14 and jetly lead 15 and spray feed tube 16, jetly lead 15 and spray feed tube 16 and communicate with the feed tube 21 that goes out compression 20 and welding aqueous vapor joint on the welding aqueous vapor joint 2 respectively, be provided with mixing chamber 17 and target 19 in the nozzle 12, nozzle 12 front ends offer some spray orifices 18.
The course of work: spray gun is fixed on the appropriate location of dore furnace by adpting flange 9.Compressed air and reducing agent enter spray gun from air inlet pipe 10 and feed tube 11 respectively, gas sprays from the compression 20 that goes out on the welding aqueous vapor joint 2, the jet 15 back flow velocitys of leading through jet body 14 further increase, and the injection feed tube 16 from jet body 14 sprays into mixing chamber 17 behind the liquid process welding aqueous vapor joint 2, the variation of caliber is pulverized liquid with target 19 bumps under high flow condition, be subjected to the bump of high velocity air simultaneously, be broken into tiny droplet, atomize again when spraying through spray orifice 18 places, thereby reach desirable atomizing effect.The appropriate design of physical dimension makes the reducing agent of appropriate amount through fully spraying into dore furnace with certain cone angle after the atomizing, reacts uniformly with NOX, thereby improves denitration efficiency.Rotary flange 6 can be used to be connected with spring 8 and sprays driving and reversing mechanism, is used for regulating the use state of spray gun and protecting spray gun.
The flow that this novel two-fluid denitration spray gun can be controlled spray gun still has 55 ~ 60 ° spray angle when 100kg/h ~ 300kg/h, and the atomizing particle particle diameter of 80 ~ 150 μ m, thereby guarantee that reducing agent can reasonably be distributed in a plurality of spray guns, and have good atomizing effect.And the high temperature resistant material of spray gun employing 310SS, can in dore furnace, work under the temperature more than 1000 ℃.
Claims (1)
1. novel two-fluid denitration spray gun, comprise the shower nozzle (1) that connects successively, welding aqueous vapor joint (2) and gun barrel, gun barrel comprises tracheae (3) and liquid pipe (4), it is characterized in that: be with rotary flange stroke limit piece (5) on the described gun barrel successively, rotary flange (6), seal welding flange (7), spring (8) and adpting flange (9), described shower nozzle is by jet body (14), set bolt (13) and nested the connecting to form of nozzle (12), offer jet leading (15) on the jet body (14) and spray feed tube (16), jet leading (15) and spray feed tube (16) and communicate with the feed tube (21) that goes out compression (20) and welding aqueous vapor joint on the welding aqueous vapor joint (2) respectively, be provided with mixing chamber (17) and target (19) in the nozzle (12), nozzle (12) front end offers some spray orifices (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725181 CN203043833U (en) | 2012-12-26 | 2012-12-26 | Novel double fluid denitrifying spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725181 CN203043833U (en) | 2012-12-26 | 2012-12-26 | Novel double fluid denitrifying spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203043833U true CN203043833U (en) | 2013-07-10 |
Family
ID=48726834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220725181 Expired - Fee Related CN203043833U (en) | 2012-12-26 | 2012-12-26 | Novel double fluid denitrifying spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203043833U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990367A (en) * | 2014-05-23 | 2014-08-20 | 浙江莱梦德电力设备有限公司 | Improved-type desulfurization and denitrification spray gun |
| CN104001635A (en) * | 2014-05-23 | 2014-08-27 | 浙江莱梦德电力设备有限公司 | Novel spray gun for desulfurization and denitrification |
| CN110639445A (en) * | 2019-11-04 | 2020-01-03 | 锦益创典(天津)科技有限责任公司 | Device and method for spray continuous reaction |
-
2012
- 2012-12-26 CN CN 201220725181 patent/CN203043833U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990367A (en) * | 2014-05-23 | 2014-08-20 | 浙江莱梦德电力设备有限公司 | Improved-type desulfurization and denitrification spray gun |
| CN104001635A (en) * | 2014-05-23 | 2014-08-27 | 浙江莱梦德电力设备有限公司 | Novel spray gun for desulfurization and denitrification |
| CN103990367B (en) * | 2014-05-23 | 2016-02-03 | 姜建勇 | The spray gun of modified desulphurization denitration |
| CN110639445A (en) * | 2019-11-04 | 2020-01-03 | 锦益创典(天津)科技有限责任公司 | Device and method for spray continuous reaction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20201226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |