CN203715582U - Multi-nozzle gasification furnace - Google Patents
Multi-nozzle gasification furnace Download PDFInfo
- Publication number
- CN203715582U CN203715582U CN201320873343.XU CN201320873343U CN203715582U CN 203715582 U CN203715582 U CN 203715582U CN 201320873343 U CN201320873343 U CN 201320873343U CN 203715582 U CN203715582 U CN 203715582U
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- China
- Prior art keywords
- nozzle
- gasification furnace
- combustion
- gas
- urceolus
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000002309 gasification Methods 0.000 title claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 89
- 239000002737 fuel gas Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 27
- 239000000376 reactant Substances 0.000 abstract description 12
- 239000006227 byproduct Substances 0.000 abstract description 5
- 239000001257 hydrogen Substances 0.000 description 10
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- 239000000567 combustion gas Substances 0.000 description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000002817 coal dust Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 230000036760 body temperature Effects 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Solid-Fuel Combustion (AREA)
Abstract
The utility model relates to the technical field of gasification furnaces, and in particular to a multi-nozzle gasification furnace which comprises an outer cylinder, an inner cylinder, a reactant nozzle and gas nozzles, wherein the inner cylinder is arranged inside the outer cylinder in a sleeving manner; the reactant nozzle is arranged on the top of the outer cylinder; the gas nozzles are arranged around the top of the outer cylinder; at least one-grade combustion-supporting gas nozzles are arranged at the upper part of the outer cylinder. According to the gasification furnace, by arranging the at least one-grade combustion-supporting gas nozzles at the upper part of the outer cylinder, the temperature inside the gasification furnace is effectively controlled, contact of a great amount of combustion-supporting gases with reactant is avoided, and therefore the generation proportion of a reaction byproduct is reduced.
Description
Technical field
The utility model relates to vapourizing furnace technical field, relates in particular to a kind of multi nozzle of gasification furnace.
Background technology
Fine coal hydrogasification is a kind of efficient coal clean utilization technology, and its key core technology is exactly coal hydrogenation gasification stove, and the main core part of vapourizing furnace is nozzle.In nozzle, the preheating method of hydrogen is generally nozzle system external firing stove and is heated to comparatively high temps (more than 1000 ℃) or by oxygenation combustion system, hydrogen is preheating to spontaneous ignition temperature (more than approximately 500 ℃) in nozzle interior or vapourizing furnace inside.
From saving inflammable gas cost and the angle that is easy to selection, in most cases can stress to be chosen in the hydrogen preheating method of nozzle arrangements inside or vapourizing furnace inside, i.e. internal-mixing nozzle and outer mixed mode nozzle.
Internal-mixing nozzle, can avoid oxygen directly to contact and Formed oxide compound with carbon, but nozzle interior need to be heated to comparatively high temps, just can reach preheating requirement, to the material heat resistance of nozzle, requires very high.For reducing the selection difficulty of nozzle, conventionally need to reduce the oxygen content in burning chamber, can cause like this jet exit fuel gas temperature on the low side, do not reach initial reaction temperature.
Outer mixed mode nozzle, it is the hydrogen preheating method of vapourizing furnace inside, hydrogen, oxygen, coal dust sprays into vapourizing furnace simultaneously, the pre-hot hydrogen of oxyhydrogen combustion, the high-temperature hydrogen producing during burning contacts hybrid reaction fast with coal, the coal dust of normal temperature has certain cooling down effect to high-temperature hydrogen, temperature in stove can too fastly not raise, reach suitable coal dust hydrogasification temperature of reaction, the easy selection of body of heater, but, because hydrogen, oxygen, coal dust is while spirt vapourizing furnace, be difficult to avoid oxygen and carbon to react and generate more oxycarbide, reduce purity and the yield of synthesis gas.
In addition, hydrogenation reaction integral body belongs to thermopositive reaction, and along with the carrying out of reaction, furnace body temperature can increase to some extent, and furnace body temperature rises and to be unfavorable for the generation of effective product, there is to certain disadvantageous effect work-ing life furnace wall simultaneously.
Utility model content
For the problems referred to above, the purpose of this utility model is to propose a kind of multi nozzle of gasification furnace, can effectively control the temperature in vapourizing furnace, and avoids contacting of a large amount of combustion-supporting gases and reactant, reduces the generation ratio of reaction by-product.
For reaching this object, the utility model by the following technical solutions:
A multi nozzle of gasification furnace, comprises urceolus, is set in the inner core in urceolus, be arranged on the nozzle at described urceolus top, and the gas jet that is arranged on described urceolus top surrounding, wherein, the top of described urceolus is provided with at least one-level combustion-supporting gas nozzle.
As a kind of preferred version of above-mentioned multi nozzle of gasification furnace, the middle part of described urceolus and/or bottom are provided with at least one-level normal temperature gas jet.
As a kind of preferred version of above-mentioned multi nozzle of gasification furnace, the quantity of every grade of described normal temperature gas jet is 2-8, with being distributed in same level of normal temperature gas jet symmetry described in one-level.
As a kind of preferred version of above-mentioned multi nozzle of gasification furnace, the quantity of every grade of described combustion-supporting gas nozzle is 2-8, with being distributed in same level of combustion-supporting gas nozzle symmetry described in one-level.
As a kind of preferred version of above-mentioned multi nozzle of gasification furnace, the angle of described nozzle and gas jet is 30 °-45 °.
As a kind of preferred version of above-mentioned multi nozzle of gasification furnace, the angle of described gas jet and combustion-supporting gas nozzle is 60 °-90 °.
A kind of preferred version as above-mentioned multi nozzle of gasification furnace, also comprises preheater, and described gas jet is arranged on preheater, and described preheater is also provided with and helps fuel gas inlet and fuel gas inlet.
As a kind of preferred version of above-mentioned multi nozzle of gasification furnace, the bottom of described urceolus is provided with cooling line.
As a kind of preferred version of above-mentioned multi nozzle of gasification furnace, between described inner core and described urceolus, be provided with baffler, on described urceolus, be provided with syngas outlet, described syngas outlet is arranged on the below of baffler.
A kind of preferred version as above-mentioned multi nozzle of gasification furnace, is provided with dust baffle on described urceolus or inner core.
The beneficial effects of the utility model are: the application provides a kind of multi nozzle of gasification furnace, it is by arranging at least one-level combustion-supporting gas nozzle on urceolus top, can increase or when reactant increase does not reach temperature of reaction, by combustion-supporting gas nozzle, spray into combustion-supporting gas at gas consumption.Can improve temperature of reaction thus, and avoid a large amount of combustion-supporting gases to contact with reactant, reduce the generation ratio of by product.In middle part or the bottom of urceolus, at least one-level normal temperature gas jet is set, can controls the temperature in body of heater by spray into combustion gas in Reaktionsofen simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of multi nozzle of gasification furnace of providing of the utility model embodiment.
Fig. 2 is the structural representation of the another kind of multi nozzle of gasification furnace that provides of the utility model embodiment.
Wherein:
1: urceolus; 2: inner core; 3: nozzle; 4: gas jet; 5: combustion-supporting gas nozzle; 6: normal temperature gas jet; 7: preheater; 8: help fuel gas inlet; 9: fuel gas inlet; 10: baffler; 11: syngas outlet; 12: dust baffle; 13: cooling line; 14: semicoke discharge outlet.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.。
As shown in Figure 1 and Figure 2, the utility model provides a kind of multi nozzle of gasification furnace, comprise urceolus 1, be set in the inner core 2 in urceolus 1, be arranged on the nozzle 3 at urceolus 1 top, and the gas jet 4 that is arranged on urceolus 1 top surrounding, wherein, the top of urceolus 1 is provided with at least one-level combustion-supporting gas nozzle 5.
The middle part of urceolus 1 and/or bottom are provided with at least one-level normal temperature gas jet 6.When reaction in furnace temperature raises, can spray into appropriate normal temperature combustion gas by the normal temperature gas jet arranging in body of heater middle and lower part and carry out absorption portion heat of reaction, and then control the constant of reaction in furnace temperature.Preferably combustion gas is same with participating in the unstripped gas reacting, and does not now affect the purity of synthetic gas product.
As preferably, the quantity of every grade of normal temperature gas jet 6 is 2-8, with being distributed in same level of one-level normal temperature gas jet 6 symmetries.Nozzle number is even number and is symmetrically conducive to keep the evenly constant of temperature in vapourizing furnace.
Further preferred, in the present embodiment, be provided with two-stage gas at normal temperature nozzle 6, it is separately positioned on middle part and the bottom of vapourizing furnace.Middle part and bottom are provided with two-stage gas at normal temperature nozzle can better make gas at normal temperature evenly mix with reaction zone material, and reaction zone bulk temperature is reduced, and keeps constant.
The quantity of every grade of combustion-supporting gas nozzle 5 is 2-8, with being distributed in same level of one-level combustion-supporting gas nozzle 5 symmetries.When reaction zone temperature does not reach reaction initial temperature or increase normal temperature coal dust treatment capacity, can spray into by the combustion-supporting gas nozzle in stove combustion-supporting gas and guarantee that reaction carries out, nozzle number is even number and the symmetrical even control that is conducive to keep temperature in vapourizing furnace.
As preferably, the application is provided with one-level combustion-supporting gas nozzle 5, and this combustion-supporting gas nozzle 5 is arranged on the top of vapourizing furnace.While not reaching reaction requirement temperature to meet jet exit gas temperature, can by increase combustion-supporting gas, guarantee to react in time and carry out.
In order to make to have better mixed effect between reactant and combustion gas, nozzle 3 is 30 °-45 ° with the angle of gas jet 4.
Gas jet 4 is 60 °-90 ° with the angle of combustion-supporting gas nozzle 5.And combustion-supporting gas nozzle 5 can effectively mix at the same area with reactant and combustion gas.
Multi nozzle of gasification furnace also comprises preheater 7, and gas jet 4 is arranged on preheater 7, and preheater 7 is also provided with and helps fuel gas inlet 8 and fuel gas inlet 9.Excessive combustion gas under certain temperature (700～800 ℃), pressure (0.1～8MPa) and quantitatively combustion-supporting gas respectively help fuel gas inlet 8 and the fuel gas inlet 9 from preheater 7 spray in preheater 7 and burn, combustion-supporting gas is in the interior perfect combustion of preheater 7, the combustion gas being preheated enters in vapourizing furnace by gas jet 4, mixes under certain pressure with the reactant spraying into by nozzle 3.If temperature reaches temperature of reaction after mixing, carry out gasification reaction, if because the increase of gas consumption or the increase of reactant do not reach temperature of reaction, open combustion-supporting gas nozzle 5 on vapourizing furnace body of heater, in vapourizing furnace, suitably supplement combustion-supporting gas and carry out fuel gas buring, to improve the temperature of mixture, impel gasification reaction to carry out.General upper of furnace body temperature is lower, needs combustion-supporting air lift high-temperature, so combustion-supporting gas nozzle more than 5 is arranged in the middle and upper part of body of heater.When not reaching temperature of reaction, increase appropriate combustion-supporting gas, the amount of needed combustion-supporting gas is less, can effectively avoid contacting of a large amount of combustion-supporting gas and reactant, can effectively reduce the generation ratio of by product.
Carrying out along with gasification reaction, vapourizing furnace from top to bottom temperature progressively raises, for by product increase and the thermal etching to vapourizing furnace inner core barrel that prevents that temperature from raising and causing, can to overheated reactant gases, carry out proper temperature control by being symmetrically distributed in the normal temperature gas jet 6 of stove middle and lower part in vapourizing furnace, by certain cold gas consumption partial heat energy, to reach the homo(io)thermism of whole reaction process, simultaneously, combustion gas belongs to unstripped gas, does not affect the composition of product.General lower portion of furnace body temperature is higher, needs combustion gas to reduce temperature, and normal temperature gas jet is arranged in the middle and lower part of body of heater more.
In this embodiment, in nozzle 3, ejection is coal dust, and in gas jet 4 and normal temperature gas jet 6, ejection is hydrogen, and what combustion-supporting gas nozzle 5 sprayed is oxygen.In it should be noted that vapourizing furnace that present embodiment provides not only can the hydrogasification reaction for coal, can also use with other similar gasification reaction in.
Between inner core 2 and urceolus 1, be provided with baffler 10, be provided with syngas outlet 11 on urceolus 1, syngas outlet 11 is arranged on the below of baffler 10.Reacted synthesis gas is overflowed from inner core 2 bottoms of vapourizing furnace, along the gap of inner core 2 and urceolus 1, moves up, and normal temperature gas jet 6 pipelines and the hot synthesis gas of inner core 2 middle and lower parts carry out certain heat exchange, and synthetic gas is had to certain cooling effect.
On urceolus 1 or inner core 2, be provided with dust baffle 12.As preferably, dust baffle 12 is to arrange around inner core 2.The dust baffle 12 that ring inner core 2 outer wall surroundings distribute can, so that a small amount of fine dusts of carrying secretly in synthetic gas comes off under effect of impact, play certain cleaning action to synthetic gas downwards.Under the iris action of baffler 10, synthetic gas is overflowed in outlet, enters postprocessing working procedures.
Reacted semicoke, except a small amount of ultrafine dust is along with upwards the flowing of synthetic gas, most of bottom of urceolus 1 that freely falls in inner core 2 bottoms, the bottom of urceolus 1 is provided with cooling line 13, under the cooling effect of cooling line 13, cool to behind 100 ℃ of left and right, by semicoke discharge outlet 14, discharge vapourizing furnace.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, within these modes all will fall into protection domain of the present utility model.
Claims (10)
1. a multi nozzle of gasification furnace, it is characterized in that, comprise urceolus (1), be set in the inner core (2) in urceolus (1), be arranged on the nozzle (3) at described urceolus (1) top, and the gas jet (4) that is arranged on described urceolus (1) top surrounding, the top of described urceolus (1) is provided with at least one-level combustion-supporting gas nozzle (5).
2. multi nozzle of gasification furnace according to claim 1, is characterized in that, the middle part of described urceolus (1) and/or bottom are provided with at least one-level normal temperature gas jet (6).
3. multi nozzle of gasification furnace according to claim 2, is characterized in that, the quantity of every grade of described normal temperature gas jet (6) is 2-8, with symmetrical being distributed in same level of normal temperature gas jet (6) described in one-level.
4. multi nozzle of gasification furnace according to claim 1, is characterized in that, the quantity of every grade of described combustion-supporting gas nozzle (5) is 2-8, with symmetrical being distributed in same level of combustion-supporting gas nozzle (5) described in one-level.
5. multi nozzle of gasification furnace according to claim 1, is characterized in that, described nozzle (3) is 30 °-45 ° with the angle of gas jet (4).
6. multi nozzle of gasification furnace according to claim 1, is characterized in that, described gas jet (4) is 60 °-90 ° with the angle of combustion-supporting gas nozzle (5).
7. multi nozzle of gasification furnace according to claim 1, is characterized in that, also comprises preheater (7), and it is upper that described gas jet (4) is arranged on preheater (7), and described preheater (7) is also provided with and helps fuel gas inlet (8) and fuel gas inlet (9).
8. multi nozzle of gasification furnace according to claim 1, is characterized in that, the bottom of described urceolus (1) is provided with cooling line (13).
9. multi nozzle of gasification furnace according to claim 1, it is characterized in that, between described inner core (2) and described urceolus (1), be provided with baffler (10), on described urceolus (1), be provided with syngas outlet (11), described syngas outlet (11) is arranged on the below of baffler (10).
10. multi nozzle of gasification furnace according to claim 1, is characterized in that, on described urceolus (1) or inner core (2), is provided with dust baffle (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320873343.XU CN203715582U (en) | 2013-12-27 | 2013-12-27 | Multi-nozzle gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320873343.XU CN203715582U (en) | 2013-12-27 | 2013-12-27 | Multi-nozzle gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203715582U true CN203715582U (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320873343.XU Expired - Lifetime CN203715582U (en) | 2013-12-27 | 2013-12-27 | Multi-nozzle gasification furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN203715582U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104611063A (en) * | 2015-01-06 | 2015-05-13 | 新奥科技发展有限公司 | Entrained-bed gasifier |
| CN112029542A (en) * | 2020-08-17 | 2020-12-04 | 新奥科技发展有限公司 | Hydro-gasification system and method |
-
2013
- 2013-12-27 CN CN201320873343.XU patent/CN203715582U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104611063A (en) * | 2015-01-06 | 2015-05-13 | 新奥科技发展有限公司 | Entrained-bed gasifier |
| CN112029542A (en) * | 2020-08-17 | 2020-12-04 | 新奥科技发展有限公司 | Hydro-gasification system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
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| CX01 | Expiry of patent term |