CN104611065B - Double-swirling pulverized coal spray nozzle for dry powder gasifier - Google Patents
Double-swirling pulverized coal spray nozzle for dry powder gasifier Download PDFInfo
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- CN104611065B CN104611065B CN201510018660.7A CN201510018660A CN104611065B CN 104611065 B CN104611065 B CN 104611065B CN 201510018660 A CN201510018660 A CN 201510018660A CN 104611065 B CN104611065 B CN 104611065B
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- pipe
- gasifying agent
- fuel gas
- coal
- cyclone
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- 239000003245 coal Substances 0.000 title claims abstract description 84
- 239000000843 powder Substances 0.000 title claims abstract description 44
- 239000007921 spray Substances 0.000 title abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 137
- 239000002737 fuel gas Substances 0.000 claims abstract description 89
- 239000002817 coal dust Substances 0.000 claims description 77
- 238000002309 gasification Methods 0.000 claims description 68
- 238000001816 cooling Methods 0.000 claims description 58
- 230000008676 import Effects 0.000 claims description 34
- 239000000498 cooling water Substances 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 108091006146 Channels Proteins 0.000 description 18
- 230000008602 contraction Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Abstract
The invention discloses a double-swirling pulverized coal spray nozzle for a dry powder gasifier. The double-swirling pulverized coal spray nozzle for the dry powder gasifier comprises a fuel gas pipe, a gasifying agent pipe, a first swirler, a second swirler and a pulverized coal pipe, wherein a fuel gas channel is formed in the fuel gas pipe, and a lower end port of the fuel gas channel is a fuel gas outlet; the fuel gas pipe is sleeved with the gasifying agent pipe, a gasifying agent channel is formed between the gasifying agent pipe and the fuel gas pipe, and a lower end port of the gasifying agent channel is a gasifying agent outlet; the first swirler is arranged in the gasifying agent channel; the second swirler is arranged outside the gasifying agent pipe in a sleeving manner, a swirling cavity is formed between the second swirler and the gasifying agent pipe, and first pulverized coal inlets are formed in the wall of the swirling cavity; the pulverized coal pipe is arranged outside the gasifying agent pipe in a sleeving manner, a pulverized coal channel is formed between the pulverized coal pipe and the gasifying agent pipe, an upper end port of the pulverized coal channel is a second pulverized coal inlet, and a lower end port of the pulverized coal channel is a pulverized coal outlet. The double-swirling pulverized coal spray nozzle for the dry powder gasifier has the advantages of simple structure, good mixing effect and the like.
Description
Technical field
The present invention relates to a kind of dry powder gasification furnace double-cyclone coal nozzle.
Background technology
Convert coal into the effective way that synthesis gas is that high-efficiency cleaning utilizes coal using Coal Gasification Technology.Gasification furnace is coal gas
The core cell of change technology.Coal dust cannot be mixed well by the nozzle of existing gasification furnace with gasifying agent.
Content of the invention
The application is based on inventor, the discovery of following facts and problem and understanding to be made：
The nozzle of gasification furnace decides the mixing of coal dust and gasifying agent.The existing nozzle for gasification furnace is with coaxial jet
Mode spray coal dust and gasifying agent, thus it is not good to lead to coal dust to mix with gasifying agent.And, part of fuel forms short circuit, quilt
Directly spray outside gasification furnace, reduce the conversion ratio of fuel.Additionally, the swirl strength of the air-flow of existing nozzle ejection is relatively low,
Thus leading to furnace wall dross unfavorable.
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.For this reason, the present invention carries
Go out a kind of double-cyclone coal nozzle of the dry powder gasification furnace with good mixing effect.
Dry powder gasification furnace double-cyclone coal nozzle according to embodiments of the present invention includes：Fuel gas pipe, described fuel gas
There is in pipe fuel gas passageway, the wall of described fuel gas passageway is provided with fuel gas inlet, the lower port of described fuel gas passageway
For fuel gas outlet；Gasifying agent pipe, described gasifying agent pipe box is located at the outside of described fuel gas pipe, described gasifying agent pipe with described
Form gasifying agent passage, the wall of described gasifying agent passage is provided with gasifying agent import, described gasifying agent passage between fuel gas pipe
Lower port be gasification agent outlets；First cyclone, described first cyclone is located in described gasifying agent passage and neighbouring described
Gasification agent outlets；Second cyclone, described second cyclone is set in the outside of described gasifying agent pipe, described second cyclone with
Form vortex chamber, the wall of described vortex chamber is provided with the first coal dust import between described gasifying agent pipe；And coal pipe, described coal dust
Pipe box is located at the outside of described gasifying agent pipe, forms coal dust channel, described coal dust between described coal pipe and described gasifying agent pipe
The upper port of passage is the second coal dust import, and the lower port of described coal dust channel is discharge, wherein said coal dust channel
Upper end extend in described vortex chamber so that described second coal dust import is connected with described vortex chamber.
Dry powder gasification furnace double-cyclone coal nozzle according to embodiments of the present invention has the advantages that good mixing effect.
In addition, dry powder gasification furnace double-cyclone coal nozzle according to the above embodiment of the present invention can also have attached as follows
Plus technical characteristic：
According to one embodiment of present invention, the diameter of the bottom of described fuel gas pipe reduces from top to bottom, described gasification
The diameter of the bottom of agent pipe reduces from top to bottom, and the diameter of the bottom of described coal pipe reduces from top to bottom, and wherein said first
Cyclone is located at the top of the described bottom of described gasifying agent pipe.
According to one embodiment of present invention, the lower edge of described gasifying agent pipe is located under the lower edge of described fuel gas pipe
Side, the lower edge of described coal pipe is located at the lower section of the lower edge of described gasifying agent pipe.
According to one embodiment of present invention, the upper end of described fuel gas pipe is closed by the first closed plate, described gasifying agent
The upper end of pipe is closed by the second closed plate, and the top of wherein said fuel gas pipe and described fuel gas inlet are from described gasifying agent pipe
Upper end stretch out, the top of described gasifying agent pipe and described gasifying agent import are stretched out from the upper end of described second cyclone.
According to one embodiment of present invention, described second cyclone includes：Body, described body is set in described gasification
The outside of agent pipe, forms described vortex chamber between described body and described gasifying agent pipe, described body is provided with described first coal
Powder import；Cover plate, described cover plate sets on the body and covers described vortex chamber, the top of described gasifying agent pipe and described gas
Agent import protrudes upward described cover plate；Coal dust inlet pipe, described coal dust inlet pipe tangentially connected described first coal dust entrance with
Just coal dust tangentially enters in described vortex chamber；With eddy flow block, described eddy flow block is located in described vortex chamber, and described eddy flow block sets
There is tangential guide groove, described tangential guide groove is tangentially connected with described coal dust channel.
According to one embodiment of present invention, described dry powder gasification furnace double-cyclone coal nozzle further includes to light a fire
Device, described igniter passes through described first closed plate and extend in described fuel gas passageway.
According to one embodiment of present invention, the lower edge of described igniter exports adjacent to described fuel gas.
According to one embodiment of present invention, described dry powder gasification furnace double-cyclone coal nozzle further includes to cool down
Pipe, described cooling tube is set in the outside of described coal pipe, forms cooling-water duct between described cooling tube and described coal pipe,
The wall of described cooling-water duct is provided with water inlet and delivery port.
According to one embodiment of present invention, described cooling tube includes：Interior cooling tube, described interior cooling tube is set in described
The outside of coal pipe, cooling-water duct in formation between described interior cooling tube and described coal pipe, described interior cooling-water duct
Wall is provided with described delivery port；With outer cooling tube, described outer cooling tube is set in the outside of described interior cooling tube, described outer cooling
Form outer cooling-water duct, the wall of described outer cooling-water duct is provided with described water inlet between pipe and described interior cooling tube, its
Described in the lower edge of outer cooling tube be connected with the lower edge of described coal pipe by the 3rd closed plate, the lower edge position of described interior cooling tube
Top in described 3rd closed plate.
According to one embodiment of present invention, described interior cooling tube includes：Linkage section, the upper end of described linkage section with described
The lower surface of the second cyclone is connected, and the lower end of described linkage section is connected with first flange, described linkage section be provided with described in go out
The mouth of a river；And cooling section, the upper end of described cooling section is connected with second flange with the upper end of described outer cooling tube, described first flange
It is connected with described second flange.
According to one embodiment of present invention, described first cyclone includes multiple swirl vanes, multiple described eddy flow leaves
Piece is equally spacedly located on the outer peripheral face of described fuel gas pipe along the circumference of described fuel gas pipe, outside each described swirl vane
Edge is contacted with the inner peripheral surface of described gasifying agent pipe.
Brief description
Fig. 1 is the structural representation of dry powder gasification furnace according to embodiments of the present invention double-cyclone coal nozzle；
Fig. 2 is the structural representation of the eddy flow block of dry powder gasification furnace according to embodiments of the present invention double-cyclone coal nozzle
Figure；
Fig. 3 is the sectional view of dry powder gasification furnace according to embodiments of the present invention double-cyclone coal nozzle.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached
The embodiment of figure description is exemplary it is intended to be used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings dry powder gasification furnace according to embodiments of the present invention double-cyclone coal nozzle 10 is described.As Fig. 1
Shown, dry powder gasification furnace double-cyclone coal nozzle 10 according to embodiments of the present invention includes fuel gas pipe 101, gasifying agent pipe
102nd, the first cyclone 103, the second cyclone 104 and coal pipe 105.
There is in fuel gas pipe 101 fuel gas passageway 1011, the wall of fuel gas passageway 1011 is provided with fuel gas inlet
1012, the lower port of fuel gas passageway 1011 exports 1013 for fuel gas.Gasifying agent pipe 102 is set in the outer of fuel gas pipe 101
Face, forms gasifying agent passage 1021 between gasifying agent pipe 102 and fuel gas pipe 101, the wall of gasifying agent passage 1021 is provided with gas
Agent import 1022, the lower port of gasifying agent passage 1021 is gasification agent outlets 1023.
First cyclone 103 is located in gasifying agent passage 1021, and the first cyclone 103 is adjacent to gasification agent outlets 1023.
Second cyclone 104 is set in the outside of gasifying agent pipe 102, forms vortex chamber between the second cyclone 104 and gasifying agent pipe 102
1041, the wall of vortex chamber 1041 is provided with the first coal dust import 1042.Coal pipe 105 is set in the outside of gasifying agent pipe 102, coal
Form coal dust channel 1051, the upper port of coal dust channel 1051 is the second coal dust import between tube cell 105 and gasifying agent pipe 102
1052, the lower port of coal dust channel 1051 is discharge 1053.Wherein, the upper end of coal dust channel 1051 extend into vortex chamber
So that the second coal dust import 1052 is connected with vortex chamber 1041 in 1041.
Dry powder gasification furnace according to embodiments of the present invention is passed through in gasifying agent passage 1021 with double-cyclone coal nozzle 10
First cyclone 103 of the neighbouring gasification agent outlets 1023 of setting, such that it is able to make gasifying agent produce after the first cyclone 103
Tangential velocity, to make gasifying agent accelerate to spray after gasification agent outlets 1023.Dry powder gasification according to embodiments of the present invention
Stove double-cyclone coal nozzle 10 passes through setting and has the second cyclone 104 of the first coal dust import 1042, such that it is able to make into
The coal dust entering in the second cyclone 104 is reinforced rotation, and then coal dust is sprayed by rotation by discharge 1053.That is,
Dry powder gasification furnace double-cyclone coal nozzle 10 according to embodiments of the present invention can be double-cyclone Combined type powder coal gasification nozzle.
The rotational flow coal dust being sprayed by discharge 1053 becomes two with the whirl wind gasified dosage form being sprayed by gasification agent outlets 1023
Stock eddy flow, and then formation double-cyclone is staggered, such that it is able to greatly strengthen the mixing of coal dust and gasifying agent, makes gasifying agent and coal dust
Rapid mixing, is effectively improved the conversion ratio of the time of staying in gasification furnace for the coal dust and coal dust, is effectively shortened fire
Flame length, reduces the draw ratio of dry powder gasification furnace double-cyclone coal nozzle 10, reduces dry powder gasification furnace double-cyclone coal
The manufacturing cost of powder nozzle 10, improves the performance of gasification furnace.
And, the slag of molten state can be got rid of to gasification furnace by the strong rotational gas flow that rotational flow coal dust is produced with cyclone gas agent
On furnace wall, thus decreasing the content of the flying dust in synthesis gas, being easy to the dross protection of furnace wall, improving the operability of gasification furnace
Can, alleviate the burden of synthetic gas cleaning system.
Therefore, dry powder gasification furnace double-cyclone coal nozzle 10 according to embodiments of the present invention has that structure is simple, mixing
The advantages of effect is good.
As shown in Figure 1 (dotted line in Fig. 1 represents the part that each part is blocked), according to some embodiments of the present invention
Dry powder gasification furnace double-cyclone coal nozzle 10 includes fuel gas pipe 101, gasifying agent pipe 102, coal pipe 105, the first cyclone
103rd, the second cyclone 104, igniter 106 and cooling tube 107.
There is in fuel gas pipe 101 fuel gas passageway 1011, the wall of fuel gas passageway 1011 is provided with fuel gas inlet
1012, the lower port of fuel gas passageway 1011 exports 1013 for fuel gas.That is, the lower end of fuel gas passageway 1011 opens
Open, to form fuel gas outlet 1013.Fuel gas inlet 1012 can be located on the perisporium of fuel gas passageway 1011 it is also possible to
It is located on the roof of fuel gas passageway 1011.Specifically, fuel gas inlet 1012 can insertion first closed plate along the vertical direction
1014.
Fuel gas is injected in gasification furnace by fuel gas passageway 1011.Specifically, fuel gas can be natural gas or
Other imflammable gas of person.
As shown in figure 1, the diameter of the bottom of fuel gas pipe 101 reduces from top to bottom, i.e. the wall of fuel gas passageway 1011
Lower tilt ground is to contract, to form contraction flow region, such that it is able to improve the jet velocity of fuel gas.Wherein, above-below direction
As shown in the arrow A in Fig. 1.
The upper end of fuel gas pipe 101 is closed by the first closed plate 1014, and fuel gas inlet 1012 can neighbouring fuel gas pipe
101 upper end.
As shown in figure 1, in one embodiment of the invention, igniter 106 can pass through the first closed plate 1014, and point
Firearm 106 extend in fuel gas passageway 1011.In igniting, igniter 106 produces localized hyperthermia, pilot fuel gas, completes
Ignition function.It is integrated with the function of ignition burner and technique nozzle by this dry powder gasification furnace double-cyclone coal nozzle 10, thus
The nozzle quantity of gasification furnace can be reduced.Advantageously, the lower edge of igniter 106 exports 1013 adjacent to fuel gas.
Gasifying agent pipe 102 is set in the outside of fuel gas pipe 101, forms gas between gasifying agent pipe 102 and fuel gas pipe 101
Agent passage 1021.The wall of gasifying agent passage 1021 is provided with gasifying agent import 1022, and the lower port of gasifying agent passage 1021 is
Gasification agent outlets 1023.Gasifying agent import 1022 can be located on the perisporium of gasifying agent passage 1021, can also be located at gasifying agent
On the roof of passage 1021.Specifically, gasifying agent import 1022 can insertion the second closed plate 1024 along the vertical direction.Change speech
It, the open at its lower end of gasifying agent passage 1021, to form gasification agent outlets 1023.Gasifying agent can be used double in dry powder gasification furnace
It is injected in gasification furnace by gasifying agent passage 1021 when rotational flow coal dust nozzle 10 is lighted a fire and gone into operation.
Specifically, gasifying agent can be pure oxygen, oxygen rich gas or air.
As shown in figure 1, the diameter of the bottom of gasifying agent pipe 102 reduces from top to bottom, i.e. the wall of gasifying agent passage 1021
Lower tilt ground is to contract, to form contraction flow region, such that it is able to improve the jet velocity of gasifying agent.Gasifying agent pipe 102
Lower edge is located at the lower section of the lower edge of fuel gas pipe 101, and that is, the lower edge of gasifying agent passage 1021 is located under fuel gas passageway 1011
The lower section on edge.
The upper end of gasifying agent pipe 102 is closed by the second closed plate 1024, and gasifying agent import 1022 can neighbouring gasifying agent pipe
102 upper end.Wherein, the top of fuel gas pipe 101 and fuel gas inlet 1012 stretch out from the upper end of gasifying agent pipe 102.Also
It is to say, the top of fuel gas pipe 101 can be upward through the second closed plate 1024, and fuel gas inlet 1012 may be located at the second envelope
The top of closing plate 1024.
As shown in figure 1, in a specific example of the present invention, fuel gas pipe 101 is provided with the first connecting plate 1015, the
One connecting plate 1015 is connected with the second closed plate 1024.Thus can more easily, firmly by fuel gas pipe 101 and gasification
Agent pipe 102 is installed together.
First cyclone 103 is located in gasifying agent passage 1021, and the first cyclone 103 is adjacent to gasification agent outlets 1023.
Advantageously, the first cyclone 103 is located at the top of the contraction flow region of gasifying agent passage 1021, and the neighbouring gasification of the first cyclone 103
The contraction flow region of agent passage 1021.Gasifying agent produces tangential velocity after the first cyclone 103, then through gasifying agent passage 1021
Accelerate after contraction flow region to spray.
Advantageously, as shown in figure 3, the first cyclone 103 includes multiple swirl vanes 1031, multiple swirl vane 1031 edges
The circumference of fuel gas pipe 101 is equally spacedly located on the outer peripheral face of fuel gas pipe 101, the outer edge of each swirl vane 1031 with
The inner peripheral surface contact of gasifying agent pipe 102.
As shown in figure 1, in an example of the present invention, the second cyclone 104 includes body 1043, cover plate 1044, coal
Powder inlet pipe 1045 and eddy flow block 1046.
Body 1043 is set in the outside of gasifying agent pipe 102, forms vortex chamber between body 1043 and gasifying agent pipe 102
1041, body 1043 is provided with the first coal dust import 1042.Cover plate 1044 is located on body 1043, and cover plate 1044 covers eddy flow
Chamber 1041.The top of gasifying agent pipe 102 and gasifying agent import 1022 protrude upward cover plate 1044, i.e. the top of gasifying agent pipe 102
Stretch out from the upper end of the second cyclone 104 with gasifying agent import 1022.That is, gasifying agent import 1022 may be located at cover plate
1044 top.
Coal dust inlet pipe 1045 tangentially connected at the first coal dust import 1042 so that coal dust tangentially enters into vortex chamber 1041
Interior.Advantageously, coal dust inlet pipe 1045 can be multiple, and the first coal dust import 1042 can also be multiple, multiple coal dust inlet pipes
1045 can be connected with multiple first coal dust imports 1042, correspondingly to make coal dust more quickly and uniformly tangential
Enter in vortex chamber 1041.
Coal pipe 105 is set in the outside of gasifying agent pipe 102, forms coal dust and lead between coal pipe 105 and gasifying agent pipe 102
Road 1051.The upper port of coal dust channel 1051 is the second coal dust import 1052, and the lower port of coal dust channel 1051 is discharge
1053.That is, the open upper end of coal dust channel 1051 is to form the second coal dust import 1052, under coal dust channel 1051
End is opened wide to form discharge 1053.
The upper end of coal dust channel 1051 extend in vortex chamber 1041 so that the second coal dust import 1052 and vortex chamber 1041
Connection.Wherein, as shown in Fig. 2 eddy flow block 1046 is located in vortex chamber 1041, eddy flow block 1046 is provided with tangential guide groove 10461, cuts
Tangentially connected with coal dust channel 1051 to guide groove 10461.That is, the coal dust in vortex chamber 1041 can pass through tangential guide groove
10461 are tangentially entered in coal dust channel 1051, enter in gasification furnace finally by discharge 1053.
Advantageously, as shown in Fig. 2 tangential guide groove 10461 can be multiple, multiple tangential guide grooves 10461 can be along coal dust
The circumference of passage 1051 is equally spaced.
As shown in figure 1, the diameter of the bottom of coal pipe 105 reduces from top to bottom, i.e. the bottom of the wall of coal dust channel 1051
Obliquely to contract, to form contraction flow region, such that it is able to improve the jet velocity of coal dust.The lower edge of coal pipe 105 is located at
The lower section of the lower edge of gasifying agent pipe 102, that is, the lower edge of coal dust channel 1051 is positioned at the lower section of the lower edge of gasifying agent passage 1021.
There is provided coal dust when dry powder gasification furnace double-cyclone coal nozzle 10 goes into operation, coal dust is carried by carbon dioxide, nitrogen etc.
Gas conveys.Specifically, the strengthening through eddy flow block 1046 for the coal dust in vortex chamber 1041 is entered by the first coal dust import 1042
Enter in coal dust channel 1051 after rotation, and ejection is rotated by discharge 1053.
As shown in figure 1, in some embodiments of the invention, cooling tube 107 includes interior cooling tube 1071 and outer cooling tube
1074.Interior cooling tube 1071 is set in the outside of coal pipe 105, forms interior cooling between interior cooling tube 1071 and coal pipe 105
Aquaporin 1072, the wall of interior cooling-water duct 1072 is provided with delivery port 1073.Outer cooling tube 1074 is set in interior cooling tube
1071 outside, forms outer cooling-water duct 1075, outer cooling-water duct between outer cooling tube 1074 and interior cooling tube 1071
1075 wall is provided with water inlet 1076.
Wherein, the lower edge of outer cooling tube 1074 is connected with the lower edge of coal pipe 105 by the 3rd closed plate 1077.Change speech
It, the lower end of outer cooling tube 1074 is closed by the 3rd closed plate 1077.The lower edge of interior cooling tube 1071 is located at the 3rd closed plate
1077 top.That is, the lower edge of interior cooling tube 1071 is spaced apart in the vertical direction with the 3rd closed plate 1077, interior cold
But the lower end of pipe 1071 is unlimited, to make interior cooling-water duct 1072 and outer cooling-water duct 1075 communicate with each other.Interior cold
But the upper end of the upper end of pipe 1071 and outer cooling tube 1074 can be closed it is also possible to by different closed plates by same closed plate
Closing.
Cooling water is entered in outer cooling-water duct 1075 by water inlet 1076, and from interior cooling tube 1071 and the 3rd closing
Gap between plate 1077 enters in interior cooling-water duct 1072, finally discharges from delivery port 1073.Thus can utilize cold
But water is cooled down with double-cyclone coal nozzle 10 to dry powder gasification furnace, reduces dry powder gasification furnace double-cyclone coal nozzle 10
Temperature is it is ensured that dry powder gasification furnace double-cyclone coal nozzle 10 continuously runs.
As shown in figure 1, in a specific example of the present invention, interior cooling tube 1071 includes linkage section 10711 and cooling
Section 10712.The upper end of linkage section 10711 is connected with the lower surface of the second cyclone 104, the lower end of linkage section 10711 and first
Flange 1081 is connected, and linkage section 10711 is provided with delivery port 1073.Specifically, the upper end of linkage section 10711 and body 1043
Lower surface is connected, to close the upper end of linkage section 10711 using body 1043.
The upper end of cooling section 10712 is connected with second flange 1082 with the upper end of outer cooling tube 1074, first flange 1081
It is connected with second flange 1082.That is, being connected using second flange 1082 close the upper end of outer cooling tube 1074.Linkage section
10711 and cooling section 10712 pass through first flange 1081 and second flange 1082 and link together.
In describing the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation of instruction such as pin ", " counterclockwise ", " axial ", " radially ", " circumferential " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must
Must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three
Individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
Connect or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limit unless otherwise clear and definite.For those of ordinary skill in the art
For, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score permissible
It is the first and second feature directly contacts, or the first and second features pass through intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combine.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of dry powder gasification furnace with double-cyclone coal nozzle it is characterised in that include：
Fuel gas pipe, has fuel gas passageway in described fuel gas pipe, the wall of described fuel gas passageway is provided with fuel gas inlet,
The lower port of described fuel gas passageway exports for fuel gas；
Gasifying agent pipe, described gasifying agent pipe box is located at the outside of described fuel gas pipe, described gasifying agent pipe and described fuel gas pipe
Between form gasifying agent passage, the wall of described gasifying agent passage is provided with gasifying agent import, the lower port of described gasifying agent passage
For gasification agent outlets；
First cyclone, described first cyclone is located in described gasifying agent passage and neighbouring described gasification agent outlets；
Second cyclone, described second cyclone is set in the outside of described gasifying agent pipe, described second cyclone and described gas
Form vortex chamber, the wall of described vortex chamber is provided with the first coal dust import between agent pipe；With
Coal pipe, described coal pipe is set in the outside of described gasifying agent pipe, shape between described coal pipe and described gasifying agent pipe
Become coal dust channel, the upper port of described coal dust channel is the second coal dust import, the lower port of described coal dust channel is discharge,
The upper end of wherein said coal dust channel extend in described vortex chamber so that described second coal dust import is connected with described vortex chamber,
Described second cyclone includes：
Body, described body is set in the outside of described gasifying agent pipe, is formed described between described body and described gasifying agent pipe
Vortex chamber, described body is provided with described first coal dust import；
Cover plate, described cover plate sets on the body and covers described vortex chamber, the top of described gasifying agent pipe and described gasification
Agent import protrudes upward described cover plate；
Coal dust inlet pipe, described coal dust inlet pipe tangentially connected in described first coal dust entrance so that coal dust tangentially enters into described rotation
In stream chamber；With
Eddy flow block, described eddy flow block is located in described vortex chamber, and described eddy flow block is provided with tangential guide groove, described tangential guide groove and institute
State coal dust channel tangentially connected.
2. dry powder gasification furnace according to claim 1 with double-cyclone coal nozzle it is characterised in that described fuel gas pipe
The diameter of bottom reduces from top to bottom, and the diameter of the bottom of described gasifying agent pipe reduces from top to bottom, the bottom of described coal pipe
Diameter reduce from top to bottom, wherein said first cyclone be located at described gasifying agent pipe described bottom top.
3. dry powder gasification furnace according to claim 1 with double-cyclone coal nozzle it is characterised in that described gasifying agent pipe
Lower edge is located at the lower section of the lower edge of described fuel gas pipe, and the lower edge of described coal pipe is located under the lower edge of described gasifying agent pipe
Side.
4. dry powder gasification furnace according to claim 1 with double-cyclone coal nozzle it is characterised in that described fuel gas pipe
Upper end is closed by the first closed plate, and the upper end of described gasifying agent pipe is closed by the second closed plate, wherein said fuel gas pipe upper
Portion and described fuel gas inlet stretch out from the upper end of described gasifying agent pipe, the top of described gasifying agent pipe and described gasifying agent import
Stretch out from the upper end of described second cyclone.
5. the dry powder gasification furnace double-cyclone coal nozzle according to any one of claim 1-4 is it is characterised in that enter one
Step includes igniter, and described igniter passes through described first closed plate and extend in described fuel gas passageway.
6. dry powder gasification furnace according to claim 5 with double-cyclone coal nozzle it is characterised in that under described igniter
Along neighbouring described fuel gas outlet.
7. the dry powder gasification furnace double-cyclone coal nozzle according to any one of claim 1-4 is it is characterised in that enter one
Step includes cooling tube, and described cooling tube is set in the outside of described coal pipe, is formed between described cooling tube and described coal pipe
Cooling-water duct, the wall of described cooling-water duct is provided with water inlet and delivery port.
8. dry powder gasification furnace according to claim 7 with double-cyclone coal nozzle it is characterised in that described cooling tube bag
Include：
Interior cooling tube, described interior cooling tube is set in the outside of described coal pipe, between described interior cooling tube and described coal pipe
Cooling-water duct in formation, the wall of described interior cooling-water duct is provided with described delivery port；With
Outer cooling tube, described outer cooling tube is set in the outside of described interior cooling tube, described outer cooling tube and described interior cooling tube
Between form outer cooling-water duct, the wall of described outer cooling-water duct is provided with described water inlet, wherein said outer cooling tube
Lower edge is connected with the lower edge of described coal pipe by the 3rd closed plate, and the lower edge of described interior cooling tube is located at described 3rd closed plate
Top.
9. dry powder gasification furnace according to claim 8 with double-cyclone coal nozzle it is characterised in that described interior cooling tube bag
Include：
Linkage section, the upper end of described linkage section is connected with the lower surface of described second cyclone, the lower end of described linkage section and the
One flange is connected, and described linkage section is provided with described delivery port；With
Cooling section, the upper end of described cooling section is connected with second flange with the upper end of described outer cooling tube, described first flange with
Described second flange is connected.
10. dry powder gasification furnace according to claim 1 with double-cyclone coal nozzle it is characterised in that described first eddy flow
Device includes multiple swirl vanes, and multiple described swirl vanes are equally spacedly located at described fuel gas along the circumference of described fuel gas pipe
On the outer peripheral face of pipe, the outer edge of each described swirl vane is contacted with the inner peripheral surface of described gasifying agent pipe.
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| CN201510018660.7A CN104611065B (en) | 2015-01-14 | 2015-01-14 | Double-swirling pulverized coal spray nozzle for dry powder gasifier |
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| CN201510018660.7A CN104611065B (en) | 2015-01-14 | 2015-01-14 | Double-swirling pulverized coal spray nozzle for dry powder gasifier |
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| CN104611065B true CN104611065B (en) | 2017-02-22 |
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| CN105219436A (en) * | 2015-10-30 | 2016-01-06 | 新奥科技发展有限公司 | A kind of supercritical water gasification nozzle, apparatus and method |
| CN106753575A (en) * | 2016-12-30 | 2017-05-31 | 神华集团有限责任公司 | Gasification nozzle |
| CN111306538A (en) * | 2020-03-16 | 2020-06-19 | 清华大学 | Small-size cyclone pulverized coal burner for laboratory |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS60110786A (en) * | 1983-11-18 | 1985-06-17 | Hitachi Ltd | Method for operating coal gasifier |
| CN1323261C (en) * | 2005-06-24 | 2007-06-27 | 北京航天动力研究所 | Powder-combustible vortex burner |
| CN1323260C (en) * | 2005-06-24 | 2007-06-27 | 北京航天动力研究所 | Combustible powder swirl-flow combined burner |
| CN101691924B (en) * | 2009-10-21 | 2011-08-17 | 北京航天动力研究所 | Water coal slurry pressure gasification process burner device with ignition device |
| CN102746899A (en) * | 2012-04-25 | 2012-10-24 | 神华集团有限责任公司 | Coal water slurry/coal fine gasification furnace and feeding method thereof |
| CN203559025U (en) * | 2013-10-22 | 2014-04-23 | 任相坤 | Water-coal-slurry and natural gas combined gasification furnace |
| CN103627440B (en) * | 2013-11-11 | 2015-04-29 | 神华集团有限责任公司 | Rotational-flow dry coal powder gasifier |
| CN204174369U (en) * | 2014-10-22 | 2015-02-25 | 吴江市天缘纺织有限公司 | Spiral suction yarn device |
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