CN203848281U - Pulverized coal burner - Google Patents
Pulverized coal burner Download PDFInfo
- Publication number
- CN203848281U CN203848281U CN201420020406.1U CN201420020406U CN203848281U CN 203848281 U CN203848281 U CN 203848281U CN 201420020406 U CN201420020406 U CN 201420020406U CN 203848281 U CN203848281 U CN 203848281U
- Authority
- CN
- China
- Prior art keywords
- intake passage
- air intake
- pulverized coal
- deflector
- inlet passage
- 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 - Lifetime
Links
- 239000003245 coal Substances 0.000 title claims abstract description 20
- 239000002817 coal dust Substances 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000001464 adherent effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Abstract
The utility model relates to the field of industrial boilers and particularly discloses a pulverized coal burner. The pulverized coal burner comprises a primary air inlet passage, a secondary air inlet passage, a primary cyclone device and a secondary cyclone device. A plurality of guide plates with right-angle triangle sections are disposed in the primary air inlet passage. A conical flow guide device with a middle through hole is disposed near the air outlet of the primary air inlet passage. Three parallel air guide plates are disposed in the secondary air inlet passage. The section of the tail end of each air guide plate is a right-angle triangle. The pulverized coal burner has the advantages that concentration of pulverized coal can be adjusted by adjusting the flow guide plates, and pulverized coal burning is facilitated; by the three parallel air guide plates disposed in the secondary air inlet passage, primary air and secondary air are well mixed, burning sufficiency is increased, burning temperature can be lowered appropriately, the speed of the primary air is stabilized by a distribution plate, and mixing of the primary air and the secondary air is promoted by the flow guide device.
Description
Technical field
The utility model relates to Industrial Boiler field, particularly relates to a kind of coal burner.
Background technology
Burner is the main combustion apparatus of coal dust steam boiler, and its effect is to ensure that fuel and combustion air can fully mix, catch fire in time and smooth combustion in the time entering burner hearth.Send into the air of coal dust steam boiler burner, generally once do not concentrate and send into, but by send into the favourable and rationalization of catching fire, burn, in batches, different by effect, generally the air of sending into burner is divided into three kinds, i.e. wind, Secondary Air and a tertiary air.Carry coal dust and send into the air of burner and be called wind one time, its Main Function is pulverized coal conveying and the needs of satisfied burning initial stage to oxygen, and one time wind quantity is generally less.The air of sending into again after breeze airflow catches fire is called secondary and divides.Secondary divides and supplements the coal dust needed air that burns away, and mainly plays disturbance, immixture.When in the middle of coal dust preparation system adopts, warehouse formula hot blast is delivered coal, the weary gas of discharging after mill drying raw coal, wherein contains 10%～15% fine breeze, this strand of weary gas can be sent into steam boiler hearth combustion by independent spout, is called tertiary air.
Well behaved burner answers height to accomplish: can make stable the catching fire of breeze airflow; After catching fire, first and second wind energy is mixed in time and rationally, guarantees higher efficiency of combustion; The full level of flame in stove is good, and it is adherent can not to rush wall, avoids slagging scorification; Have good fuel usability and load regulation range, resistance is less, can reduce the generation of NOx, reduces the pollution to environment.
Utility model content
The purpose of this utility model is to provide a kind of coal burner.
The utility model coal burner, comprise one-level air intake passage, be wrapped in one-level air intake passage outside secondary air intake passage, be arranged on one-level swirl-flow devices in one-level air intake passage, be arranged on the secondary swirl-flow devices in secondary air intake passage, in described one-level air intake passage, be provided with the deflector that multiple cross sections are right angled triangle, in the middle of being provided with near the air outlet of described one-level air intake passage, there is the conical deflector of through hole, in described secondary air intake passage, be provided with three parallel wind deflectors, the terminal position cross section of described wind deflector is right angled triangle.
As optimization, the position between described conical deflector and deflector is provided with a flow distribution plate.Described three wind deflectors with the distance between secondary swirl-flow devices from interior to outward one by one increase.Described three wind deflector ends to the distance of conical deflector from interior to increasing one by one outward.
Compared with prior art the beneficial effects of the utility model are: in one-level air intake passage, be provided with multiple deflectors, can regulate the concentration of coal dust by the adjusting of deflector, thereby facilitate the burning of coal dust, in secondary air intake passage, be provided with three parallel wind deflectors, the design of the position by these three wind deflectors, promote the abundant mixing of force one wind and light breeze, can improve the adequacy of burning, and can suitably reduce ignition temperature, flow distribution plate be designed with the speed that helps stablize a wind, and the design of air deflector has promoted the mixing of force one wind and light breeze.
Brief description of the drawings
Fig. 1 is the utility model coal burner structural representation.
Detailed description of the invention
The utility model is described in further detail for embodiment plan given below; but can not be interpreted as it is the restriction to the utility model protection domain; those skilled in the art to nonessential improvement and adjustment more of the present utility model, still belong to protection domain of the present utility model according to the utility model content.
As shown in Figure 1, a kind of coal burner, comprise one-level air intake passage 1, be wrapped in the secondary air intake passage 2 of one-level air intake passage 1 outside, be arranged on the one-level swirl-flow devices 3 in one-level air intake passage 1, be arranged on the secondary swirl-flow devices 4 in secondary air intake passage 1, in one-level air intake passage 1, being provided with multiple cross sections is the deflector 5 of right angled triangle, in the middle of being provided with near the air outlet of one-level air intake passage 1, there is the conical deflector 6 of through hole, position between conical deflector 6 and deflector 5 is provided with a flow distribution plate 7, in secondary air intake passage 2, be provided with three parallel wind deflectors 8, the terminal position cross section of wind deflector 8 is right angled triangle, three wind deflectors 8 with the distance between secondary swirl-flow devices 4 from interior to increasing one by one outward, three wind deflector 8 ends to the distance of conical deflector 6 from interior to increasing one by one outward.
Comprehensively above-mentioned, in the one-level air intake passage of the utility model coal burner, be provided with multiple deflectors, can regulate the concentration of coal dust by the adjusting of deflector, thereby facilitate the burning of coal dust; In secondary air intake passage, be provided with three parallel wind deflectors, the design of the position by these three wind deflectors, has promoted the abundant mixing of force one wind and light breeze, can improve the adequacy of burning, and can suitably reduce ignition temperature.Flow distribution plate be designed with the speed that helps stablize a wind; And the design of air deflector has promoted the mixing of force one wind and light breeze.
Only preferred embodiment of the present utility model from the above; for those skilled in the art; not departing under the prerequisite of the utility model know-why, can also make some improvement and modification, these also should be considered as protection domain of the present utility model.
Claims (4)
1. a coal burner, comprise one-level air intake passage, be wrapped in the secondary air intake passage of one-level air intake passage outside, be arranged on the one-level swirl-flow devices in one-level air intake passage, be arranged on the secondary swirl-flow devices in secondary air intake passage, it is characterized in that: in described one-level air intake passage, be provided with the deflector that multiple cross sections are right angled triangle, in the middle of being provided with near the air outlet of described one-level air intake passage, there is the conical deflector of through hole, in described secondary air intake passage, be provided with three parallel wind deflectors, the terminal position cross section of described wind deflector is right angled triangle.
2. a kind of coal burner according to claim 1, is characterized in that: the position between described conical deflector and deflector is provided with a flow distribution plate.
3. a kind of coal burner according to claim 1, is characterized in that: described three wind deflectors with the distance between secondary swirl-flow devices from interior to outward one by one increase.
4. a kind of coal burner according to claim 1, is characterized in that: described three wind deflector ends to the distance of conical deflector from interior to increasing one by one outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420020406.1U CN203848281U (en) | 2014-01-14 | 2014-01-14 | Pulverized coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420020406.1U CN203848281U (en) | 2014-01-14 | 2014-01-14 | Pulverized coal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203848281U true CN203848281U (en) | 2014-09-24 |
Family
ID=51561292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420020406.1U Expired - Lifetime CN203848281U (en) | 2014-01-14 | 2014-01-14 | Pulverized coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203848281U (en) |
-
2014
- 2014-01-14 CN CN201420020406.1U patent/CN203848281U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210616 Address after: 034016 north of Caojiazhuang village, beiyijing Township, Xinzhou City, Shanxi Province Patentee after: SHANXI LANTIAN ENVIRONMENTAL PROTECTION EQUIPMENT CO.,LTD. Address before: 100029 no.2008, unit 3, 19-20 / F, 69 Beichen West Road, Chaoyang District, Beijing Patentee before: BEIJING DABANG SHICHUANG ENERGY SAVING TECHNOLOGY SERVICE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |