CN202709098U - Pulverized coal combustor convenient to adjust on line - Google Patents
Pulverized coal combustor convenient to adjust on line Download PDFInfo
- Publication number
- CN202709098U CN202709098U CN 201220394322 CN201220394322U CN202709098U CN 202709098 U CN202709098 U CN 202709098U CN 201220394322 CN201220394322 CN 201220394322 CN 201220394322 U CN201220394322 U CN 201220394322U CN 202709098 U CN202709098 U CN 202709098U
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- China
- Prior art keywords
- convenient
- adjusting rod
- inner tube
- pulverized coal
- line control
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Abstract
The utility model relates to a pulverized coal combustor, in particularly to the pulverized coal combustor convenient to adjust on line. A nozzle of an existing combustor is inconvenient to adjust, and pulverized coal can not adequately burn in the existing combustor. To overcome the defects, the pulverized coal combustor convenient to adjust on line comprises an inner pipe and an outer pipe, wherein the main body of the inner pipe and the main body of the outer pipe form a casing pipe structure, the inner space of the inner pipe is a primary air chamber, the space between the inner pipe and the outer pipe is a secondary air chamber, the rear end of the inner pipe and the rear end of the outer pipe are closed, a primary air powder inlet is arranged in the rear end of the inner pipe, and a secondary air powder inlet is arranged in the rear end of the outer pipe. The pulverized coal combustor convenient to adjust on line is characterized by further comprising a bluff body and an adjusting rod, wherein the bluff body is in a circular truncated cone shape, the upper bottom of the bluff body is connected with one end of the adjusting rod, the other end of the adjusting rod stretches out of the rear end of the inner pipe, and the adjusting rod can be used to drive the bluff body to move left and right along the axis of the inner pipe. The pulverized coal combustor convenient to adjust on line is simple in structure, fuel saving, high in heat efficiency, high in safety, and suitable for being widely used in various industrial or civil boilers, kilns, sintering furnaces and heating furnaces which use combined fuel of pulverized coal and air.
Description
Technical field
The utility model relates to a kind of coal burner, particularly a kind of coal burner of being convenient to on-line control.
Background technology
China is one of a few country take coal as main primary energy in the world, although the coal in China storage capacity is relatively abundant, it is non-renewable resources after all.The equipment such as existing boiler, kiln take the coal dust mixing air as main fuel, no matter its burner is by increasing air compartment, multistage air feed, still change the shape of air compartment, all can not controlling well the coal dust quantity delivered of unit interval; The Parallel airflow that blows out simultaneously is unfavorable for the mixing of primary wind and powder and Secondary Air, and it is even not to cause coal dust to mix with air, causes burning insufficient; Coal dust enters secondary air chamber, causes burner to damage in interior generation burning, also is ubiquitous defective.
The utility model content
The technical problems to be solved in the utility model is the defects that how to overcome prior art, and a kind of coal burner of being convenient to on-line control is provided.
For solving the problems of the technologies described above, originally the coal burner of being convenient to on-line control comprises inner and outer tubes, the two main body is sleeve structure, the inner tube inner space is an air compartment, it is secondary air chamber between inner tube, the outer tube, the inner and outer tubes back-end closure, and be respectively equipped with primary wind and powder import and secondary air inlet, it is characterized in that: it also comprises bluff body and adjusting rod; Wherein bluff body is truncated cone, and its upper base links to each other with adjusting rod one end, and the adjusting rod other end stretches out outside the inner tube rear end, and can drive bluff body along inner tube axis move left and right.
So design, the bluff body conical surface can change the direction that primary wind and powder blows out, and makes no longer parallel mixing of primary wind and powder and Secondary Air, but crosses by certain angle, makes its two mixing more abundant.By the control and regulation handwheel, utilize the penetrating area at bluff body control primary wind and powder air outlet place, thereby the load of control primary wind and powder is convenient to regulate the when uninterrupted that mixes of coal dust and air, sufficient combustion, easy to adjust.The adjusting rod other end stretches out outside the inner tube rear end, is convenient to on-line control.
As optimization, described adjusting rod contains the part thread segment, and the cover nut is arranged, this nut is fixed on the inner tube wall by connecting rod, the outer end of adjusting rod is provided with handwheel.So design is easy to adjust, accurate.
As optimization, be provided with the polylith spillplate in the described air compartment, above-mentioned spillplate evenly is fixed on the internal wall of pipe orifice of inner tube.So design, one side can strengthen the muzzle velocity of primary wind and powder, can lead to primary wind and powder on the one hand, and it is more even that primary wind and powder and Secondary Air are mixed; And because the effect of spillplate, during on-line control, it is flame-out to be difficult for mistake.
As optimization, described spillplate is rectangular slab, and above-mentioned spillplate all is parallel to the inner tube axis.So design is simple in structure, easily manufactured.
As optimization, described spillplate twist, its helical trajectory direction is consistent with primary wind and powder precession direction.So design, guide effect is good
As optimization, described primary wind and powder import and secondary air inlet are respectively clockwise tangential entry and counterclockwise tangential entry.So design, primary wind and powder is opposite with Secondary Air outlet rotation direction, mixes more even.
Originally the coal burner of being convenient to on-line control is simple in structure, fuel savings, the thermal efficiency is high, security is good, is widely used in various industry with the pulverized coal air fuel combination, civilian boiler, kiln, sintering furnace and heating furnace.
Description of drawings
Below in conjunction with accompanying drawing the coal burner of originally being convenient to on-line control is described further:
Fig. 1 is the cross-sectional view (dissect along axis, adjusting rod, handwheel and bluff body dissect) of originally being convenient to the coal burner embodiment one of on-line control;
Fig. 2 is the cross-sectional view (dissect along axis, adjusting rod, handwheel and bluff body dissect) of originally being convenient to the coal burner embodiment two of on-line control.
Among the figure, 1 is that inner tube, 2 is that outer tube, 3 is that primary wind and powder import, 4 is that secondary air inlet, 5 is that bluff body, 6 is that adjusting rod, 7 is that nut, 8 is that connecting rod, 9 is that handwheel, 10 is spillplate.
The specific embodiment
Embodiment one: as shown in Figure 1, originally the coal burner of being convenient to on-line control comprises inner tube 1 and outer tube 2, the two main body is sleeve structure, inner tube is an air compartment between 1 inner the appearance, be secondary air chamber between inner tube 1, the outer tube 2, inner tube 1 and outer tube 2 back-end closures, and be respectively equipped with primary wind and powder import 3 and secondary air inlet 4, it is characterized in that: it also comprises bluff body 5 and adjusting rod 6; Wherein bluff body 5 is truncated cone, and its upper base links to each other with adjusting rod 6 one ends, and adjusting rod 6 other ends stretch out outside inner tube 1 rear end, and can drive bluff body 5 along inner tube 1 axis move left and right.
Described adjusting rod 6 contains the part thread segment, and the cover nut 7 is arranged, this nut 7 is fixed on inner tube 1 inwall by connecting rod 8, the outer end of adjusting rod 6 is provided with handwheel 9.
Be provided with polylith spillplate 10 in the described air compartment, above-mentioned spillplate 10 evenly is fixed on the internal wall of pipe orifice of inner tube 1.Described spillplate 10 is rectangular slab, all is parallel to inner tube 1 axis.
Described primary wind and powder import 3, secondary air inlet 4 are counterclockwise tangential entry (observing with the port of export).
Embodiment two: as shown in Figure 2: described primary wind and powder import 3 is clockwise tangential entry, secondary air inlet 4 is that counterclockwise tangential entry (can certainly primary wind and powder import 3 be counterclockwise tangential entry, secondary air inlet 4 is clockwise tangential entry, as long as the two is opposite in the rotation direction in exit), described spillplate 10 twist, its helical trajectory direction is consistent with primary wind and powder precession direction.Remaining part and structure are shown in enforcement mode one, and figure slightly.
Claims (6)
1. coal burner of being convenient to on-line control, comprise inner and outer tubes, the two main body is sleeve structure, the inner tube inner space is an air compartment, it is secondary air chamber between inner tube, the outer tube, the inner and outer tubes back-end closure, and be respectively equipped with primary wind and powder import and secondary air inlet, it is characterized in that: it also comprises bluff body and adjusting rod; Wherein bluff body is truncated cone, and its upper base links to each other with adjusting rod one end, and the adjusting rod other end stretches out outside the inner tube rear end, and can drive bluff body along inner tube axis move left and right.
2. the coal burner of being convenient to on-line control as claimed in claim 1, it is characterized in that: described adjusting rod contains the part thread segment, and cover has nut, and this nut is fixed on the inner tube wall by connecting rod, and the outer end of adjusting rod is provided with handwheel.
3. the coal burner of being convenient to on-line control as claimed in claim 2, it is characterized in that: be provided with the polylith spillplate in the described air compartment, above-mentioned spillplate evenly is fixed on the internal wall of pipe orifice of inner tube.
4. the coal burner of being convenient to on-line control as claimed in claim 3, it is characterized in that: described spillplate is rectangular slab, and above-mentioned spillplate all is parallel to the inner tube axis.
5. the coal burner of being convenient to on-line control as claimed in claim 3 is characterized in that: described spillplate twist, its helical trajectory direction is consistent with primary wind and powder precession direction.
6. such as the arbitrary described coal burner of being convenient to on-line control of claim 1 to 5, it is characterized in that: described primary wind and powder import and secondary air inlet are respectively clockwise tangential entry and counterclockwise tangential entry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394322 CN202709098U (en) | 2012-05-07 | 2012-08-09 | Pulverized coal combustor convenient to adjust on line |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220201863 | 2012-05-07 | ||
| CN201220201863.1 | 2012-05-07 | ||
| CN 201220394322 CN202709098U (en) | 2012-05-07 | 2012-08-09 | Pulverized coal combustor convenient to adjust on line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709098U true CN202709098U (en) | 2013-01-30 |
Family
ID=47589395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220394322 Expired - Fee Related CN202709098U (en) | 2012-05-07 | 2012-08-09 | Pulverized coal combustor convenient to adjust on line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202709098U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106030210A (en) * | 2013-12-18 | 2016-10-12 | 卡尔斯鲁厄理工学院 | Pulsation burner for the combustion of solid fuels, and method for the operation thereof |
-
2012
- 2012-08-09 CN CN 201220394322 patent/CN202709098U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106030210A (en) * | 2013-12-18 | 2016-10-12 | 卡尔斯鲁厄理工学院 | Pulsation burner for the combustion of solid fuels, and method for the operation thereof |
| CN106030210B (en) * | 2013-12-18 | 2018-10-23 | 卡尔斯鲁厄理工学院 | Pulse burner and operation method for buring solid fuel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20140809 |
|
| EXPY | Termination of patent right or utility model |