CN204240350U - Brown coal coal dust homogeneous combustion device - Google Patents
Brown coal coal dust homogeneous combustion device Download PDFInfo
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- CN204240350U CN204240350U CN201420724599.9U CN201420724599U CN204240350U CN 204240350 U CN204240350 U CN 204240350U CN 201420724599 U CN201420724599 U CN 201420724599U CN 204240350 U CN204240350 U CN 204240350U
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Abstract
The utility model relates to a kind of brown coal coal dust homogeneous combustion device.In large-scale boiler using brown coal design, the design of burner is more complicated, should consider the smooth combustion of catching fire of coal dust, consider the coking property of coal dust again.A kind of brown coal coal dust homogeneous combustion device, its composition comprises: coal nozzle body (8), coal dust spout (1), described coal nozzle body becomes circumference transition shape, by pin or be welded to connect between the circular one end of described coal nozzle body and coal dust spout, described square one end of coal nozzle body is provided with inlet flange (7), described coal nozzle body has Hou Kou (3), described coal nozzle body has one group and support otic placode (4), there is in described coal nozzle body powder averaging device (6), described coal nozzle is external has burner wind-box (5), there is in described coal dust spout ripple bluff body (2).The utility model is applied to brown coal coal dust homogeneous combustion device.
Description
technical field:
the utility model relates to a kind of brown coal coal dust homogeneous combustion device.
background technology:
in large-scale boiler using brown coal design, the design of burner is more complicated, the smooth combustion of catching fire of coal dust should be considered, consider the coking property of coal dust again, particularly NOx emission is difficult to control, and breathes out pot through theoretical research for many years, and summarizes the practical operation situation of multiple stage boiler using brown coal, just have developed this low-NOx pulverized coal burner with better steady fuel efficiency fruit, strong basis has been established in the design being developed as Chinese large-sized boiler using brown coal of this burner.
summary of the invention:
the purpose of this utility model is to provide a kind of brown coal coal dust homogeneous combustion device.
above-mentioned object is realized by following technical scheme:
brown coal coal dust homogeneous combustion device, its composition comprises: coal nozzle body, coal dust spout, described coal nozzle body becomes circumference transition shape, the circular one end of described coal nozzle body is connected with coal dust spout, described square one end of coal nozzle body is provided with inlet flange, described coal nozzle body has aditus laryngis, described coal nozzle body both sides are provided with support, there is in described coal nozzle body one group of powder averaging device, described coal nozzle is external has burner wind-box, has ripple bluff body in described coal dust spout.
described brown coal coal dust homogeneous combustion device, described burner wind-box front end has coal nozzle assembly is advanced perforate in place along air compartment baffle, flange on described coal nozzle body is fixed with the end plate connection at burner wind-box rear portion and seals, the pulverized coal channel that described coal nozzle body connects have whole for the coal nozzle body detachable elbow taken out in burner wind-box, described coal nozzle body, the coal dust of pulverized coal injection interruption-forming one sealing, the continuous passage of air mixture, in described coal nozzle body up and down, the coal even separator described in two is respectively installed in left and right, the aditus laryngis corresponding coal dust spout First air coal dust spout of described coal dust device.
the beneficial effects of the utility model:
1. two coal even separators are respectively installed in upper and lower in the utility model coal nozzle body, left and right, improve the uniformity of spout outlet coal dust, avoid the coal dust skewness because the structures such as pulverized coal channel elbow cause, make the burning of burner outlet more controlled, more even, effectively improve fire behaviour, prevent burner nozzle and slagging.Also be designed with ripple bluff body at the coal dust spout port of export, can reflux high-temperature flue gas preferably, improves the ability of catching fire of coal dust, effectively reduces the coal dust initial stage to catch fire the generation of NOx.
the coal dust of the utility model coal nozzle body, pulverized coal injection interruption-forming one sealing, the continuous passage of air mixture, send into burner hearth by the coal air mixture carried by pulverized coal channel through this passage.Coal nozzle body both sides are provided with support, and by the perforate of burner wind-box front end, can advance in place along air compartment baffle by coal nozzle assembly, rear portion is fixed by the end plate connection of the flange on coal nozzle body with burner wind-box rear portion and sealed it.On-the-spot blowing out need be keeped in repair coal nozzle, when changing, the elbow of the flange bolt on coal nozzle body and the pulverized coal channel be connected with coal nozzle body can be unloaded, can take out whole for coal nozzle body in burner wind-box, be convenient to maintenance and change.
brown coal coal dust homogeneous combustion device of the present utility model is utilized to carry out the method for burning, coal nozzle body both sides are provided with support, by the perforate of burner wind-box front end, can coal nozzle assembly be advanced in place along air compartment baffle, then rear portion is fixed by the end plate connection of the flange on coal nozzle body with burner wind-box rear portion and is sealed, carrying out keeping in repair coal nozzle, during replacing, the elbow of the flange bolt on coal nozzle body and the pulverized coal channel be connected with coal nozzle body can be unloaded, can take out whole for coal nozzle body in burner wind-box, be convenient to maintenance and change First air breeze airflow enter coal nozzle body by pulverized coal channel, coal nozzle body simultaneously, the coal dust of pulverized coal injection interruption-forming one sealing, the continuous passage of air mixture, in coal nozzle body up and down, the each installing in left and right two coal even separators, First air coal dust is after two coal even separators, more even at coal burner spout outlet coal dust, effectively improve fire behaviour, prevent burner nozzle and slagging, First air breeze airflow sends into coal dust spout by Hou Kou after coal dust device distributed uniform, by the ripple bluff body in coal dust spout, high-temperature flue gas is refluxed, improve ability of catching fire, burner hearth is sent into finally by First air coal dust spout, dense outer light First air breeze airflow in being formed.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present utility model.
accompanying drawing 2 is top views of the present utility model.
detailed description of the invention:
embodiment 1:
a kind of brown coal coal dust homogeneous combustion device, its composition comprises: coal nozzle body 8, coal dust spout 1, described coal nozzle body becomes circumference transition shape, by pin or be welded to connect between the circular one end of described coal nozzle body and coal dust spout, described square one end of coal nozzle body is provided with inlet flange 7, described coal nozzle body has marquis's mouth 3, described coal nozzle body has one group and support otic placode 4, in described coal nozzle body, there is powder averaging device 6, described coal nozzle is external has burner wind-box 5, in described coal dust spout, there is ripple bluff body 2.
embodiment 2:
brown coal coal dust homogeneous combustion device described in embodiment 1, described burner wind-box front end has coal nozzle assembly is advanced perforate 9 in place along air compartment baffle, flange on described coal nozzle body is fixed with the end plate connection at burner wind-box rear portion and seals, the pulverized coal channel that described coal nozzle body connects have whole for the coal nozzle body detachable elbow taken out in burner wind-box, described coal nozzle body, the coal dust of pulverized coal injection interruption-forming one sealing, the continuous passage of air mixture, in described coal nozzle body up and down, the each installing in left and right two coal even separators, the aditus laryngis corresponding coal dust spout First air coal dust spout of described coal dust device.
embodiment 3:
the combustion method of the employing brown coal coal dust homogeneous combustion device according to embodiment 1 or 2, first coal nozzle body both sides are provided with support, by the perforate of burner wind-box front end, can coal nozzle assembly be advanced in place along air compartment baffle, then rear portion is fixed by the end plate connection of the flange on coal nozzle body with burner wind-box rear portion and is sealed, carrying out keeping in repair coal nozzle, during replacing, the elbow of the flange bolt on coal nozzle body and the pulverized coal channel be connected with coal nozzle body can be unloaded, can take out whole for coal nozzle body in burner wind-box, be convenient to maintenance and change First air breeze airflow enter coal nozzle body by pulverized coal channel, coal nozzle body simultaneously, the coal dust of pulverized coal injection interruption-forming one sealing, the continuous passage of air mixture, in coal nozzle body up and down, the each installing in left and right two coal even separators, First air coal dust is after two coal even separators, more even at coal burner spout outlet coal dust, effectively improve fire behaviour, prevent burner nozzle and slagging, First air breeze airflow sends into coal dust spout by Hou Kou after coal dust device distributed uniform, by the ripple bluff body in coal dust spout, high-temperature flue gas is refluxed, improve ability of catching fire, burner hearth is sent into finally by First air coal dust spout, dense outer light First air breeze airflow in being formed.
Claims (2)
1. a brown coal coal dust homogeneous combustion device, its composition comprises: coal nozzle body, coal dust spout, it is characterized in that: described coal nozzle body becomes circumference transition shape, the circular one end of described coal nozzle body is connected with coal dust spout, described square one end of coal nozzle body is provided with inlet flange, described coal nozzle body has aditus laryngis, described coal nozzle body both sides are provided with support, there is in described coal nozzle body one group of powder averaging device, described coal nozzle is external has burner wind-box, has ripple bluff body in described coal dust spout.
2. brown coal coal dust homogeneous combustion device according to claim 1, it is characterized in that: described burner wind-box front end has coal nozzle assembly is advanced perforate in place along air compartment baffle, flange on described coal nozzle body is fixed with the end plate connection at burner wind-box rear portion and seals, the pulverized coal channel that described coal nozzle body connects have whole for the coal nozzle body detachable elbow taken out in burner wind-box, described coal nozzle body, the coal dust of pulverized coal injection interruption-forming one sealing, the continuous passage of air mixture, in described coal nozzle body up and down, the coal even separator described in two is respectively installed in left and right, the aditus laryngis corresponding coal dust spout First air coal dust spout of described coal dust device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724599.9U CN204240350U (en) | 2014-11-28 | 2014-11-28 | Brown coal coal dust homogeneous combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724599.9U CN204240350U (en) | 2014-11-28 | 2014-11-28 | Brown coal coal dust homogeneous combustion device |
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| Publication Number | Publication Date |
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| CN204240350U true CN204240350U (en) | 2015-04-01 |
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| CN201420724599.9U Active CN204240350U (en) | 2014-11-28 | 2014-11-28 | Brown coal coal dust homogeneous combustion device |
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| CN (1) | CN204240350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406164A (en) * | 2014-11-28 | 2015-03-11 | 哈尔滨锅炉厂有限责任公司 | Pulverized lignite homogeneous phase combustor and combustion method |
| CN110834180A (en) * | 2019-11-15 | 2020-02-25 | 无锡华能热能设备有限公司 | Assembling and welding processing technology for boiler pulverized coal burner |
-
2014
- 2014-11-28 CN CN201420724599.9U patent/CN204240350U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406164A (en) * | 2014-11-28 | 2015-03-11 | 哈尔滨锅炉厂有限责任公司 | Pulverized lignite homogeneous phase combustor and combustion method |
| CN110834180A (en) * | 2019-11-15 | 2020-02-25 | 无锡华能热能设备有限公司 | Assembling and welding processing technology for boiler pulverized coal burner |
| CN110834180B (en) * | 2019-11-15 | 2022-05-13 | 无锡华能热能设备有限公司 | Assembling and welding processing technology for boiler pulverized coal burner |
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