CN206577590U - SNCR efficient high-temperature resistants grow telescopic denitration spray gun automatically - Google Patents
SNCR efficient high-temperature resistants grow telescopic denitration spray gun automatically Download PDFInfo
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- CN206577590U CN206577590U CN201621339867.0U CN201621339867U CN206577590U CN 206577590 U CN206577590 U CN 206577590U CN 201621339867 U CN201621339867 U CN 201621339867U CN 206577590 U CN206577590 U CN 206577590U
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- spray gun
- tracheae
- sncr
- telescopic
- liquid pipe
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Abstract
Telescopic denitration spray gun is grown automatically the utility model discloses SNCR efficient high-temperature resistants, and the spray gun includes atomizer, tracheae, liquid pipe, gas-liquid mixed chamber, protective case, electric pushrod, pusher bar support, push rod shell, motor, reductor, axle sleeve, support frame, spray gun gun barrel bearing, advance limiting plate, flange.The spray gun automatically retractable, collapsing length reaches 400mm, and the gun barrel of spray gun can be promoted or exited in burner hearth according to service condition, prevent nozzle from being damaged because of long-term dry combustion method, effectively slagging prevention is blocked simultaneously, so that extend service life of lance, reduction operating cost and labor intensity.Further, the spray gun sets the gas-liquid mixed chamber of circular halfpace structure, and liquid pipe afterbody and tracheae afterbody are set into certain angle of inclination, and both are combined, only relatively low feed pressure need to be used can to fully ensure that reducing agent is uniformly mixed with compressed air, obtains good atomizing effect.
Description
Technical field
The utility model belongs to SNCR method gas denitrifying technology field, and in particular to the efficient resistance to height of SNCR
Temperature grows telescopic denitration spray gun automatically.
Background technology
SNCR method (SNCR), is to spray into reducing agent ammonia or urine into stove under without catalyst existence condition
Element, in the region that temperature is 800~1100 DEG C, by NOxIt is reduced to N2And H2O.Feature is not need catalyst, reduced investment, technique
Simply, it is highly suitable for dry cement production line.The technology is to be sprayed into reducing agents such as urea, ammoniacal liquor in stove and NOxSelected
Selecting property is reacted, and the method must add reducing agent in high-temperature region.Spray gun is the key equipment in whole denitrating system, and spray gun safely may be used
Run by ground most important to system.Most of existing spray gun is fixedly mounted on boiler, and spray gun can not be stretched in burner hearth
Contracting activity, no matter whether denitrating system is normally run, and spray gun is constantly in high temperature, the environment of high dirt, and long-term dry combustion method will cause
Deformed at nozzle, easy coking and blocking, service life of lance is short, it is necessary to which often replacing, adds operating cost and labor intensity.It is simultaneously existing
The lance ejection when in use having, so as to have impact on operating efficiency, is asked apart from low, penetration power is poor, easy obstruction in order to solve these
Topic, therefore, it is proposed that a kind of SNCR efficient high-temperature resistants grow telescopic denitration spray gun automatically.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of SNCR efficient high-temperature resistants and grows telescopic denitration automatically
With spray gun, the spray gun includes atomizer, tracheae, liquid pipe, gas-liquid mixed chamber, protective case, electric pushrod, pusher bar support, push rod
Shell, motor, reductor, axle sleeve, support frame, spray gun gun barrel bearing, advance limiting plate, flange；The tracheae and liquid pipe
Spray gun gun barrel is formed by welding, the spray gun gun barrel bearing is arranged on spray gun gun barrel, and the gun barrel bearing passes through with handspike bearing
Bolt connection, the push rod shell is fixed on support frame, and support frame as described above is fixed on flange, and the advance limiting plate is fixed
On support frame；The reductor is connected with motor, and the motor is connected with electric pushrod；The gas-liquid mixed chamber
For circular landing shape, the diameter of its cross section is tapered into from inside to outside；The afterbody and gas-liquid mixed of the tracheae and liquid pipe
Chamber is connected.
Further, using tracheae axis as boundary, the top half of the tracheae afterbody is tilted down, and is pressed from both sides with vertical direction
Angle is 50~80 °；Using liquid pipe axis as boundary, the latter half of the liquid pipe afterbody is inclined upwardly, and is with vertical direction angle
50~80 °
Further, the ratio between the cross section maximum gauge of the gas-liquid mixed chamber and minimum diameter are 3~4:1.
Further, the atomizer is conical structure, and nozzle bore is 0.10~0.15mm.
Further, the material of the tracheae and liquid pipe is titanium alloy, and the material of the protective case is carborundum.
The beneficial effects of the utility model are：The spray gun automatically retractable that the utility model is provided, the gun barrel of spray gun can root
Promote or exit in burner hearth according to service condition, prevent nozzle from being damaged because of long-term dry combustion method, while effectively slagging prevention is blocked, from
And extend service life of lance, reduction operating cost and labor intensity.Further, the spray gun sets the gas-liquid of circular halfpace structure to mix
Chamber is closed, and liquid pipe afterbody and tracheae afterbody are set into certain angle of inclination, both are combined, and only need to use relatively low charging pressure
Power can fully ensure that reducing agent is uniformly mixed with compressed air, obtains good atomizing effect.What the spray gun sprayed goes back
Former agent atomizing particle size (Suo Taier diameters) concentrates on 50~65 μm, and atomization is uniform, and penetration power is strong, jet length up to 8.0~
9.0m。
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation that SNCR efficient high-temperature resistants described in the utility model grow telescopic denitration spray gun automatically
Figure；
Wherein, 1- atomizers；2- tracheaes；3- mist pipes；4- gas-liquid mixed chambers；5- protective cases；6- flanges；7- spray gun gun barrels
Bearing；8- handspike bearings；9- electric pushrods；10- electric pushrod shells；11- reductors；12- motors；13- advances spacing
Plate；14- support frames.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only
Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
As shown in figure 1, SNCR efficient high-temperature resistants grow telescopic denitration spray gun automatically, the spray gun includes atomizer 1, gas
Pipe 2, liquid pipe 3, gas-liquid mixed chamber 4, protective case 5, flange 6, spray gun gun barrel bearing 7；Handspike bearing 8, electric pushrod 9, electronic push away
Bar shell 10, reductor 11, motor 12, advance limiting plate 13, support frame 14；The spray gun gun barrel is by tracheae 2 and liquid pipe 3
It is formed by welding, and tracheae 2 is located at the top of liquid pipe 3；The tracheae 2 and the afterbody of liquid pipe 3 are connected with gas-liquid mixed chamber 4；Institute
It is circular landing shape to state gas-liquid mixed chamber 4, and the diameter of its cross section is tapered into from inside to outside；The spray gun gun barrel bearing 7
It is arranged on spray gun gun barrel, the gun barrel bearing 7 is bolted with handspike bearing 8, the electric pushrod shell 10 is fixed
On support frame 14, support frame as described above 14 is fixed on flange 6, and the advance limiting plate 13 is fixed on support frame 14；It is described
Reductor 11 is connected with motor 12, and the motor 12 is connected with electric pushrod 9.
Further, reductor 11 is connected with motor 12, in order that the speed that moves forward and backward of control electric pushrod 9
Degree, prevents excessive velocities, makes the shock of cheek；Further, the setting of advance limiting plate 13, on the one hand to electric pushrod
9 progressive positions are defined, on the other hand the shock prevented also from electric pushrod 9 to part.
Further, using the axis of tracheae 2 as boundary, the top half of the tracheae afterbody is tilted down, with vertical direction
Angle is 50~80 °；Using the axis of liquid pipe 3 as boundary, the latter half of the liquid pipe afterbody is inclined upwardly, with vertical direction angle
For 50~80 °.
Further, the ratio between the cross section maximum gauge of the gas-liquid mixed chamber 4 and minimum diameter are 3~4:1.
Further, the atomizer 1 is conical structure, and nozzle bore is 0.10~0.15mm.
Further, the material of the tracheae 2 and liquid pipe 3 is titanium alloy, and the material of the protective case 5 is carborundum,
Enable spray gun high temperature resistant, corrosion-resistant, not easy to wear, service life is long.
The course of work of the present utility model is：When denitrating system puts into operation, the motor of electric pushrod is rotated forward, electricity
Machine drives push rod to be moved to burner hearth direction, and push rod drives gun barrel to enter burner hearth；When denitrating system is stopped transport, the driving of electric pushrod
Motor is rotated backward, and motor drives push rod to be moved to burner hearth opposite direction, and push rod drives gun barrel to exit burner hearth.This spray gun is due to length
(collapsing length is up to 400mm) can be adjusted in time, and it is long spray gun can first to be adjusted according to actual conditions in the installation and debugging stage
Degree burns so as to avoid spray gun from wearing and tearing；If spray gun a period of time is without that can allow spray gun to automatically exit from stove so that the entirety of spray gun
Life-span significantly extends, and also reduces artificial dismounting.Further, when in use, compressed air enters gas to this spray gun with reducing agent
During liquid hybrid chamber, both flow directions have certain angle, and both mutually rush, so that mixing is more uniform；Gas-liquid mixed
Chamber is using circular landing shape, after reducing agent is well mixed with compressed air, moreover it is possible to ensure that gas-liquid mixture has enough
Pressure enters atomizer, reaches good atomizing effect.Also, only relatively low feed pressure need to be used to can obtain well
Atomizing effect.Test indicate that, the reducing agent atomizing particle size (Suo Taier diameters) that the spray gun sprays concentrates on 50~65 μm, mist
Change uniformly, penetration power is strong, and jet length is up to 8.0~9.0m.
Finally it should be noted that：Above only to illustrate the technical solution of the utility model, rather than its limitations；Although ginseng
The utility model is described in detail according to foregoing embodiments, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment of the utility model
The scope of technical scheme.
Claims (5)
1.SNCR efficient high-temperature resistants grow telescopic denitration spray gun automatically, it is characterised in that the spray gun include atomizer (1),
Tracheae (2), liquid pipe (3), gas-liquid mixed chamber (4), protective case (5), flange (6), spray gun gun barrel bearing (7), pusher bar support (8),
Electric pushrod (9), push rod shell (10), reductor (11), motor (12), advance limiting plate (13), support frame (14)；Institute
State tracheae (2) and liquid pipe (3) is formed by welding spray gun gun barrel；The gas-liquid mixed chamber (4) is circular landing shape, its cross section
Diameter is tapered into from inside to outside；The afterbody of the tracheae (2) and liquid pipe (3) is connected with gas-liquid mixed chamber (4)；The spray gun
Gun barrel bearing (7) is arranged on spray gun gun barrel, and the gun barrel bearing (7) is bolted with pusher bar support (8), the push rod
Shell (10) is fixed on support frame (14), and support frame as described above (14) is fixed on flange (6), and the advance limiting plate (13) is solid
It is scheduled on support frame (14)；The reductor (11) is connected with motor (12), the motor (12) and electric pushrod
(9) it is connected.
2. SNCR efficient high-temperature resistants grow telescopic denitration spray gun automatically according to claim 1, it is characterised in that with tracheae
Axis is boundary, and the top half of the tracheae afterbody is tilted down, and is 50~80 ° with vertical direction angle；With liquid pipe axis
Line is boundary, and the latter half of the liquid pipe afterbody is inclined upwardly, and is 50~80 ° with vertical direction angle
3. SNCR efficient high-temperature resistants according to claim 1 or claim 2 grow telescopic denitration spray gun automatically, it is characterised in that institute
It is 3~4 to state the ratio between cross section maximum gauge and minimum diameter of gas-liquid mixed chamber (4):1.
4. SNCR efficient high-temperature resistants grow telescopic denitration spray gun automatically according to claim 1, it is characterised in that the mist
It is conical structure to change nozzle (1), and nozzle bore is 0.10~0.15mm.
5. growing telescopic denitration spray gun automatically according to any one of Claims 1 to 4 SNCR efficient high-temperature resistants, its feature exists
In the material of the tracheae (2) and liquid pipe (3) is titanium alloy, and the material of the protective case (5) is carborundum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621339867.0U CN206577590U (en) | 2016-12-07 | 2016-12-07 | SNCR efficient high-temperature resistants grow telescopic denitration spray gun automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621339867.0U CN206577590U (en) | 2016-12-07 | 2016-12-07 | SNCR efficient high-temperature resistants grow telescopic denitration spray gun automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206577590U true CN206577590U (en) | 2017-10-24 |
Family
ID=60108995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621339867.0U Expired - Fee Related CN206577590U (en) | 2016-12-07 | 2016-12-07 | SNCR efficient high-temperature resistants grow telescopic denitration spray gun automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206577590U (en) |
-
2016
- 2016-12-07 CN CN201621339867.0U patent/CN206577590U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171024 Termination date: 20201207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |