CN205860003U - A kind of saturated vapor catalytic burner for cement decomposing furnace - Google Patents
A kind of saturated vapor catalytic burner for cement decomposing furnace Download PDFInfo
- Publication number
- CN205860003U CN205860003U CN201620605248.5U CN201620605248U CN205860003U CN 205860003 U CN205860003 U CN 205860003U CN 201620605248 U CN201620605248 U CN 201620605248U CN 205860003 U CN205860003 U CN 205860003U
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- Prior art keywords
- saturated vapor
- inner sleeve
- burner
- coal
- tank
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- 229920006395 saturated elastomer Polymers 0.000 title claims abstract description 74
- 239000004568 cement Substances 0.000 title claims abstract description 27
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 7
- 239000003054 catalyst Substances 0.000 claims abstract description 32
- 239000003245 coal Substances 0.000 claims abstract description 30
- 239000002817 coal dust Substances 0.000 claims abstract description 23
- 230000001603 reducing effect Effects 0.000 claims abstract description 13
- 230000003134 recirculating effect Effects 0.000 claims abstract description 4
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 239000003570 air Substances 0.000 description 15
- 238000002485 combustion reaction Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 2
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 2
- 239000003830 anthracite Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000036031 hyperthermia Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 241000707825 Argyrosomus regius Species 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a kind of saturated vapor catalytic burner for cement decomposing furnace, this burner includes: inner sleeve, saturated vapor passage, catalyst tank, taper chamfering, Whirl deposite tank wing；Catalyst tank is connected with saturated vapor passage, and saturated vapor passage is connected with inner sleeve, is provided with taper chamfering and Whirl deposite tank wing at the inner sleeve port of export；Saturated vapor enters saturated vapor passage through catalyst tank, coal wind enters inner sleeve from inner sleeve arrival end, after mixing at inner sleeve reducing with the saturated vapor from saturated vapor passage, the diffusance of coal dust is expanded by taper chamfering, make coal dust and saturated vapor rotate in dore furnace by Whirl deposite tank wing simultaneously, form a recirculating zone at coal tube end, reach to generate CO and H2Purpose.The reduction reducible more NOx generated of component that this utility model produces after not only reducing the growing amount of fuel NO, and addition saturated vapor, reduce charges for disposing pollutants and the operating cost in whole cement plant.
Description
Technical field
This utility model relates to field of environmental engineering, is specifically related to a kind of saturated vapor catalytic burner, particularly relates to one
Plant the saturated vapor catalytic burner for cement decomposing furnace.
Background technology
At present, premature degradation stove design volume in cement plant is less than normal, and in order to control production cost, enterprise has to make
With soft coal or the use anthracite of cheaper, cause the imperfect combustion of coal dust；And currently used burner
It is all in the case of excess air coefficient (i.e. the ratio of the air capacity of effective supply and theoretical air requirement during fuel combustion) is more than 1
Carrying out the burning of coal dust and the heating of raw material and decomposition, What is more, and kiln tail still uses traditional triple-channel burner (to use
Kiln tail primary air fan air feed), and CaCO in dore furnace3Decomposition temperature scope is at 825～900 DEG C, it is not necessary to as kiln hood burner
Equally produce localized hyperthermia, once produce localized hyperthermia, while system skinning can be caused, also result in heating power waste, increase
Coal consumption, and produce substantial amounts of NOx, add the charges for disposing pollutants in cement plant, too increase the operating cost in whole cement plant simultaneously.
Some cement plant burner of decomposition furnace the most domestic, although eliminate kiln tail primary air fan, but simply in burning
Device nozzle exit end uses Whirl deposite tank wing, changes the eddy flow direction of coal wind by force, reaches coal wind and mix purpose more fully, but
There is problems in that first, increase " Whirl deposite tank wing " at burner leading portion and can strengthen coal wind resistance to flow output, make coal air quantity not connect
Continuous, stably spray into dore furnace, and Whirl deposite tank wing is short for service life, and abrasion is very fast, when worn out or serious wear occurs, eddy flow
Effect is deteriorated, and coal divides mixed effect will decline substantially.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of saturated vapor for cement decomposing furnace to be catalyzed combustion
Burner, after adding saturated vapor, promotes fixed carbon Quick-gasifying, not only makes soft coal or anthracite fixed carbon burning velocity
Improve more than 50%, and substantial amounts of reduction component can be produced so that cement plant discharged nitrous oxides is up to standard, reduces higher water
Mud factory charges for disposing pollutants and the operating cost in whole cement plant.
For solving above-mentioned technical problem, this utility model provides a kind of saturated vapor for cement decomposing furnace to be catalyzed burning
Device, this burner includes: inner sleeve, saturated vapor passage, catalyst tank, taper chamfering, Whirl deposite tank wing；Catalyst tank is with saturated
Steam channel connects, and saturated vapor passage is connected with inner sleeve, is provided with taper chamfering and Whirl deposite tank wing at the inner sleeve port of export；Full
Entering saturated vapor passage with steam through catalyst tank, coal wind enters inner sleeve from inner sleeve arrival end, and carrys out self-saturation
After the saturated vapor of steam channel mixes at inner sleeve reducing, expanded the diffusance of coal dust by taper chamfering, pass through simultaneously
Whirl deposite tank wing, makes coal dust and saturated vapor rotate in dore furnace, forms a recirculating zone at coal tube end, reaches to generate CO
And H2Purpose.
Being preferably, described catalyst tank includes a saturated vapor entrance, and two saturated vapor outlets, mid portion loads
Catalyst；Catalyst tank is provided with Pressure gauge and reserves installing port and draining pressure regulator valve.
Be preferably, described catalyst be shaped as latticed disk.
Being preferably, the angle of described taper chamfering is set to 13--15 °；Described Whirl deposite tank wing is equally distributed, eddy flow
The angle of wind wing depends on the selection of coal.
Being preferably, described Whirl deposite tank wing has 8, and its swirl angle is 25 °.
It is preferably, outside inner sleeve, is additionally provided with outer sleeve, and for regulating outer sleeve with inner sleeve relative to position
Adjusting screw.
Being preferably, described saturated vapor derives from Technology in Surplus Heat Power Generation of Cement Factory main pipeline, and flow is 20 40kg/h, and pressure is
0.4—0.6MPa。
Described saturated vapor passage can be one or more passage, preferably two-way saturated vapor passage.
Being preferably, described saturated vapor passage is positioned at leading portion at inner sleeve reducing with the link position of inner sleeve.
It is preferably, is provided with burner upper cover at inner sleeve arrival end.
Compared with prior art, the beneficial effects of the utility model are:
1, burner of the present utility model, it is ensured that in cement decomposing furnace, the normal combustion of coal dust and raw material catabolic process is same
Time, make the fixed carbon in coal dust with saturated vapor through catalyst, fixed carbon Quick-gasifying, improve the coal dust tail-off time
More than 50%, and this reaction generation under oxygen-lean atmosphere, decrease operating cost；
2, saturated vapor and the fixed carbon in coal dust react the reduction component generated, and are possible not only to suppress fuel type NOx's
Produce, and can reduce the thermal NO x generated, thus reduce the discharge capacity of cement plant fuel NO, not only
Improve the air quality of cement plant periphery, but also decrease the charges for disposing pollutants in cement plant；
3, dust is decreased during combustion with meagre oxygen to the furnace wall of cement decomposing furnace and washing away and abrasion dynamics of burner, raising
Service life of equipment.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings:
Fig. 1 is the vertical section structural map of this utility model burner；
Fig. 2 is the top view of this utility model burner；
Fig. 3 is the left view of this utility model burner；
Fig. 4 is the structural representation of the catalyst tank of this utility model burner；
Wherein description of reference numerals is as follows:
1 is saturated vapor entrance, and 2 is coal wind entrance, and 3 is catalyst tank, and 4 is saturated vapor passage, and 5 is adjusting screw, 6
For inner sleeve, 7 is outer sleeve, and 8 is taper chamfering, and 9 is burner upper cover, and 10 is Whirl deposite tank wing, and 12 export for saturated vapor, 13
Reserving installing port for Pressure gauge, 14 is draining pressure regulator valve, and 15 is catalyst.
Detailed description of the invention
As depicted in figs. 1 and 2, a kind of saturated vapor catalytic burner for cement decomposing furnace of this utility model includes:
Inner sleeve 6, saturated vapor passage 4, catalyst tank 3, taper chamfering 8, Whirl deposite tank wing 10.Wherein, catalyst tank 3 and saturated vapor
Passage 4 connects, and saturated vapor passage 4 is connected with inner sleeve 6 that (saturated vapor passage 4 and inner sleeve 6 link position are positioned at inner sleeve
Leading portion at 6 reducings), it is provided with taper chamfering 8 and Whirl deposite tank wing 10 at inner sleeve 6 port of export.Saturated vapor 1 is through catalyst tank 3
Two-way is divided to enter in saturated vapor passage 4.The catalyst promoting that coal dust reacts with saturated vapor is installed additional in catalyst tank 3,
Catalyst tank 3 plays regulation saturated vapor resistance and the effect of flow velocity simultaneously.In the embodiment shown in fig. 4, catalyst tank 3 includes
One saturated vapor entrance 1, two saturated vapors outlet 12, mid portion loads catalyst 15, catalyst 15 be shaped as net
Trellis disk, being provided with Pressure gauge in catalyst tank 3 reserves installing port 13 and draining pressure regulator valve 14 etc. simultaneously, the reserved pressure installed
Power table and draining pressure regulator valve 14 play regulation saturated vapor resistance and the effect of flow velocity.The effect of taper chamfering 8 is to disperse by force
Coal wind moves towards, and expands the dispersion angle of coal dust, makes coal dust disperse evenly；The effect of Whirl deposite tank wing 10 is to make coal dust and saturated vapor
Rotate in dore furnace, form one " recirculating zone " at coal tube end, reach to generate CO and H2Purpose.Real shown in Fig. 3
Executing in example, Whirl deposite tank wing 10 is equally distributed；The angle of Whirl deposite tank wing 10, depends on the selection of coal, shows 8 in Fig. 3
Individual Whirl deposite tank wing 10, angle initialization is 25 °.The effect of taper chamfering 8 is to make coal dust dispersion bigger, it is contemplated that burner head
The factors such as coking, taper chamfering 8 value 13-15 °.Adjusting screw 5 and outer sleeve 7, regulation regulation is also set up outside inner sleeve 6
Leading screw 5 can regulate the relative position of outer sleeve 7 and inner sleeve 6, adjusts angle of flare and the diffusion length etc. of coal dust.At inner sleeve
6 arrival ends are provided with coal wind entrance 2 and burner upper cover 9, owing to the pipe diameter of coal wind entrance 2 is than the pipe before inner sleeve 6 reducing
Footpath is little, easily causes leakage, therefore sets burner upper cover 9 and seals.
Whole burner of the present utility model does not has igniter, does not introduce First air, and equipment is simple, this utility model
Burner be made up of three passages, wherein, two-way saturated vapor passage 4 and coal wind, steam passage inner sleeve 6,
And saturated vapor 1 enters in saturated vapor passage 4 through 3 points of two-way of catalyst tank, coal wind enters from inner sleeve 6 through coal wind entrance 2
Mouth end enters in inner sleeve 6, crosses with the leading portion at inner sleeve 6 reducing of the saturated vapor 1 from saturated vapor passage 4, is becoming
Mix in the district of footpath, because pipeline reducing diameter, it may appear that the effect of " turbulent flow ", improves mixed effect.Due to the temperature in cement decomposing furnace
Spend higher, can get up with automatic combustion when pulverized coal injection is entered, therefore this burner is without igniter, and in order to realize manufacturing " water
Coal vapour ", without introducing First air, device structure is simple, reduces manufacturing cost.The medium sprayed in inner sleeve 6 includes
Coal dust, air and saturated vapor three kinds, coal wind is the mixing of coal dust and air, at inner sleeve 6 reducing district saturated vapor and coal wind
Mixing, after reducing, realizes " turbulent flow " effect in inner sleeve 6 reducing interval, makes coal dust and air, saturated vapor degree of mixing
More preferably, then through taper chamfering 8 and Whirl deposite tank wing 10, reaching to improve diffusance, eddy flow enters and reacts inside dore furnace, raw
Become CO and H2Purpose.In order to be lowered into the air capacity of dore furnace, coal wind is only strengthened mixed by saturated vapor by this burner
Make a concerted effort to spend, promote combustion reaction can occur under oxygen lean conditions.Described saturated vapor 1 derives from Technology in Surplus Heat Power Generation of Cement Factory supervisor
Road, flow about 20 40kg/h, pressure 0.4 0.6MPa.Because not introducing primary air, truly reach oxygen deprivation
Burning, also reacts, with fixed carbon, the condition of creating for saturated vapor, so that " water gas " reaction quickly occurs.Make this combustion
The coal dust of burner ejection occurs saturated vapor catalysis to burn (to promote the combustion reaction can be under oxygen lean conditions in the dore furnace of high temperature
Occur).Owing to the ignition temperature in cement decomposing furnace is higher, up to 850 900 DEG C of these scopes, combustion reaction is at lean oxygen
While carrying out under atmosphere, nor affect on heating and the catabolic process of raw material, not only reduce the fuel type nitrogen that coal dust firing generates
The growing amount of oxide, improves the ambient air quality in cement plant, and the reduction component produced after adding saturated vapor is permissible
Reduce more NOx generated, reduce charges for disposing pollutants and the operating cost in whole cement plant；Meanwhile, the dust furnace wall to dore furnace
With burner wash away and abrasion dynamics have also been obtained and effectively reduces, thus improve the service life of equipment.Whole burned
Journey does not affect heating and the decomposition of raw material in cement decomposing furnace.
Claims (9)
1., for a saturated vapor catalytic burner for cement decomposing furnace, it is characterized in that: this burner includes: inner sleeve (6),
Saturated vapor passage (4), catalyst tank (3), taper chamfering (8), Whirl deposite tank wing (10)；Catalyst tank (3) is led to saturated vapor
Road (4) connects, and saturated vapor passage (4) is connected with inner sleeve (6), is provided with taper chamfering (8) and rotation at inner sleeve (6) port of export
Stream wind wing (10)；Saturated vapor enters saturated vapor passage (4) through catalyst tank (3), and coal wind enters from inner sleeve (6) arrival end
Enter in inner sleeve (6), after mixing at inner sleeve (6) reducing with the saturated vapor from saturated vapor passage (4), pass through taper
Chamfering (8) expands the diffusance of coal dust, simultaneously by Whirl deposite tank wing (10), makes coal dust and saturated vapor rotate into dore furnace
In, form a recirculating zone at coal tube end, reach to generate CO and H2Purpose.
Burner the most according to claim 1, is characterized in that: described catalyst tank (3) includes a saturated vapor entrance
(1), two saturated vapors outlet (12), mid portion loads catalyst (15)；Catalyst tank (3) is provided with Pressure gauge reserve
Installing port (13) and draining pressure regulator valve (14).
Burner the most according to claim 2, is characterized in that: described catalyst (15) be shaped as latticed disk.
Burner the most according to claim 1, is characterized in that: the angle of described taper chamfering (8) is set to 13--15 °；
Described Whirl deposite tank wing (10) is equally distributed, and the angle of Whirl deposite tank wing (10) depends on the selection of coal.
Burner the most according to claim 4, is characterized in that: described Whirl deposite tank wing (10) has 8, and its swirl angle is 25 °.
Burner the most according to claim 1, is characterized in that: be additionally provided with outer sleeve (7) in inner sleeve (6) outside, and
For regulating the adjusting screw (5) of outer sleeve (7) and inner sleeve (6) relative position.
Burner the most according to claim 1, is characterized in that: described saturated vapor passage (4) is that two-way saturated vapor leads to
Road.
Burner the most according to claim 1, is characterized in that: described saturated vapor passage (4) and the connection of inner sleeve (6)
Position is positioned at leading portion at inner sleeve (6) reducing.
Burner the most according to claim 1, is characterized in that: be provided with burner upper cover (9) at inner sleeve (6) arrival end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620605248.5U CN205860003U (en) | 2016-06-20 | 2016-06-20 | A kind of saturated vapor catalytic burner for cement decomposing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620605248.5U CN205860003U (en) | 2016-06-20 | 2016-06-20 | A kind of saturated vapor catalytic burner for cement decomposing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205860003U true CN205860003U (en) | 2017-01-04 |
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ID=57636568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620605248.5U Active CN205860003U (en) | 2016-06-20 | 2016-06-20 | A kind of saturated vapor catalytic burner for cement decomposing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205860003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953224A (en) * | 2016-06-20 | 2016-09-21 | 上海三融环保工程有限公司 | Saturated steam catalytic burner used for cement decomposition furnace |
-
2016
- 2016-06-20 CN CN201620605248.5U patent/CN205860003U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953224A (en) * | 2016-06-20 | 2016-09-21 | 上海三融环保工程有限公司 | Saturated steam catalytic burner used for cement decomposition furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |