CN2295118Y - Coal-slurry combustor - Google Patents
Coal-slurry combustor Download PDFInfo
- Publication number
- CN2295118Y CN2295118Y CN 97209311 CN97209311U CN2295118Y CN 2295118 Y CN2295118 Y CN 2295118Y CN 97209311 CN97209311 CN 97209311 CN 97209311 U CN97209311 U CN 97209311U CN 2295118 Y CN2295118 Y CN 2295118Y
- Authority
- CN
- China
- Prior art keywords
- coal slurry
- cone
- passage
- coal
- slurry
- Prior art date
- 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 - Fee Related
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Abstract
The utility model discloses a coal slurry combustor. A conical body is arranged in a passage of the coal slurry jet and is in rigid connection with the passage. The top end of the conical body faces towards the flow direction of the coal slurry. A space for jetting coal slurry is formed between the conical body and the passage. The combustor of the structure results in uniform distribution and complete combustion of the coal slurry jetted into a combustion chamber, and therefore, the combustion efficiency is high, which is in favor of safe and economic operation of the combustor. The utility model is suitable for combustors for fuel coal slurry or can be used for transforming various kinds of combustors.
Description
The utility model belongs to coal slurry (comprising water-coal-slurry and coal slime slurry) spray combustion nozzle.
At present, in the coal slurry burner, be the straight pipe type burner as one of main pattern of burner noz(zle).The primary structure characteristics of this burner are coal slurries after the coal slurry pump pressurization, and the straight length of flowing through is directly injected to the combustion chamber internal combustion.The disadvantage of this burner is that the coal slurry injection is too concentrated, and coal slurry is difficult to completing combustion, also easily causes the accumulation of coal slime slurry, is unfavorable for the safety and economy operation of burner.
The purpose of this utility model is to overcome the shortcoming of above-mentioned straight pipe type burner, provides a kind of and can make the clean-burning coal slurry burner of coal slurry.
For reaching this purpose, the utility model is design like this: a cone is set in the passage of coal slurry spout, and cone and passage are rigidly connected, and the direction that the top end face of cone flows to coal slurry forms the space of spraying coal slurry between cone and passage.
Advantage of the present utility model is:
1. owing in passage, be provided with cone, can force coal slurry to flow, and spray into the combustion chamber, coal slurry evenly be distributed, sufficient combustion, efficiency of combustion height with bigger jet angle around cone.
2. coal slurry mobile flow field in burner is organized comparatively rationally, and flow resistance is little.
3. can evenly distribute owing to coal slurry, this burner both can be arranged in the bottom, combustion chamber, can be arranged in the middle and lower part of combustion chamber again, both can be used as vortex burner (being equipped with swirl secondary air) and had used, also can be used as straight-flow combustor (being equipped with direct current secondary wind) and use, arrange with flexible and convenient to use.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the elevation cross-sectional view of a kind of embodiment of the utility model.
Fig. 2 is the side view of the utility model the foregoing description.
Fig. 3 adopts coal slime slurry fluidized-bed combustion boiler schematic diagram of the present utility model.
By Fig. 1, shown in Figure 2, in the passage 1 of coal slurry spout 3, be provided with cone 4, cone 4 is rigidly connected with passage 1, and the top end face of cone 4 forms the space of spraying coal slurry to the coal slurry flow direction between cone 4 and passage 1.Cone 4 can be cone or pyramid etc., but is preferably cone.The material of cone can be steel alloy or ordinary steel, and cone can be conulite, also can be solid conical.More even for coal slurry is distributed, the bottom surface of cone 4 preferably is positioned at coal slurry spout 3 places, and the two central lines of cone 4 and passage 1.Rigidly connected mode can be multiplely between cone 4 and the passage 1, and connected mode is preferably, and the bottom surface of cone 4 is connected with passage 1 by two connectors 5 at least, and the top of cone 4 is passed through a connector 2 at least and is connected with passage 1.The bottom surface that is cone 4 shown in Fig. 1,2 is connected with passage 1 with a connector 2 by three connectors 5 respectively with the top, employing be to be welded to connect.
Boiler shown in Figure 3 adopts fluidized bed combustion and two kinds of combined type burnings of coal slime slurry burning.The coal slime slurry is stored in the coal slime pulp bin 7, send into coal slurry burner 6 provided by the utility model again, the coal slime slurry evenly is ejected into the fluid bed internal combustion with bigger subtended angle behind this burner 6, eddy flow or the required oxygen of direct current secondary wind aftercombustion, and play certain conveying effect, to improve the spray penetration of coal slime slurry, guarantee the even distribution of coal slime slurry in fluid bed, thereby realize high efficiency burning, the hot flue gas that burning produces is through the combustion chamber 8, and discharge downward air discharge cyclone separator 9 and back-end ductwork 10 backs.
The utility model is applicable to the burner (comprising boiler, cellar for storing things stove etc.) that uses coal slurry, also can be used for the transformation of all kinds burner.
Claims (4)
1, a kind of coal slurry burner, it comprises coal slurry spout and passage, it is characterized in that: in the passage (1) of coal slurry spout (3), cone (4) is set, cone (4) is rigidly connected with passage (1), the top end face of cone (4) forms the space of spraying coal slurry between coal slurry is flowed between cone (4) and passage (1).
2, coal slurry burner according to claim 1 is characterized in that: cone (4) is a cone.
3, coal slurry burner according to claim 2 is characterized in that: the bottom surface of cone (4) is positioned at coal slurry spout (3) to be located, and the two central lines of cone (4) and passage (1).
4, according to claim 2,3 described coal slurry burners, it is characterized in that: the bottom surface of cone (4) is connected with passage (1) by two connectors (5) at least, and the top of cone (4) is connected with passage (1) by a connector (2) at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97209311 CN2295118Y (en) | 1997-01-30 | 1997-01-30 | Coal-slurry combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97209311 CN2295118Y (en) | 1997-01-30 | 1997-01-30 | Coal-slurry combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2295118Y true CN2295118Y (en) | 1998-10-21 |
Family
ID=33928524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97209311 Expired - Fee Related CN2295118Y (en) | 1997-01-30 | 1997-01-30 | Coal-slurry combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2295118Y (en) |
-
1997
- 1997-01-30 CN CN 97209311 patent/CN2295118Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |