CN107975791A - A kind of method of the fluidisation igniting of recirculating fluidized bed - Google Patents
A kind of method of the fluidisation igniting of recirculating fluidized bed Download PDFInfo
- Publication number
- CN107975791A CN107975791A CN201711162171.4A CN201711162171A CN107975791A CN 107975791 A CN107975791 A CN 107975791A CN 201711162171 A CN201711162171 A CN 201711162171A CN 107975791 A CN107975791 A CN 107975791A
- Authority
- CN
- China
- Prior art keywords
- bed
- charcoal
- igniting
- fluidisation
- fluidized bed
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005243 fluidization Methods 0.000 title claims abstract description 14
- 230000003134 recirculating effect Effects 0.000 title claims abstract description 9
- 239000003610 charcoal Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 230000000630 rising effect Effects 0.000 claims abstract description 4
- 239000003245 coal Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000004939 coking Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 244000144985 peep Species 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2700/00—Special arrangements for combustion apparatus using fluent fuel
- F23C2700/06—Combustion apparatus using pulverized fuel
- F23C2700/063—Arrangements for igniting, flame-guiding, air supply in
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a kind of method of the fluidisation igniting of recirculating fluidized bed, furnace bottom is laid on clinker, forms initial bed；Charcoal is put into, charcoal is paved on initial bed, the height of laying is 500~800mm；Charcoal is lighted, control temperature is at 400 DEG C；Then wind turbine is opened, temperature is fallen before in fluid bed, is further continued for rising to 600 DEG C；Do not stop to add charcoal, continuous air blast；Burner hearth is observed, burner hearth is slowly rubescent, and whole bottom material is advertised, and temperature reaches 900 DEG C, forms fluidized state, lights a fire successfully.Overall process of the invention is simple, can quickly realize successful ignition, the overall duration of ignition is reduced to a hour by original three hours, and success rate improves, and can once succeed substantially.
Description
Technical field
The present invention relates to a kind of ignition method of fluidized-bed combustion boiler, more particularly to a kind of fluidized point of recirculating fluidized bed
The method of fire.
Background technology
Circulating fluidized bed boiler is strong etc. with its low stain is environmentally friendly, high-effect, coal adaptability is good, underload does not throw oily ability
Plurality of advantages, is now subjected to the favor of many users at home, due to circulating fluidized bed boiler in terms of combustion system with tradition
The bigger difference of pulverized-coal fired boiler, for example, bed of material coking, bed of material overtemperature, coking of material returner, igniting are not easy to light, heating surface wear compared with
It is fast etc., if control is bad in circulating fluidized bed boiler, will often it occur, point of the most users to circulating fluidized bed boiler
Fire, and running control, always feel misgivings, feel more difficult assurance the initial stage particularly put into operation in boiler.
The igniting of circulation fluidized bed just refers to raise bed temperature by certain mode and be maintained to throw needed for coal operation most
More than low-level, so as to fulfill the normal table operation thrown after coal.At present, the sparking mode of circulating bed boiler can be simply classified as
It is following several, i.e. Micro Fluid igniting, fluidization igniting and circulation fluidized bed igniting, the state of bed when referring to Initial Stage after Ignition respectively.Igniting
Heat source can be the heat smoke that pre-burning device produces under oil gun on bed or in bed, air gun etc. and bed.
Circulating fluidized bed boiler igniting is an important ring for its normal operation.Fluidized-bed combustion boiler igniting can be divided into fixed bed
Igniting, bed surface oil gun fluidization igniting, precombustion chamber fluidization oil drop fire and hot wind fluidization are lighted a fire four kinds.
The igniting of circulating fluidized bed boiler is different compared with other boilers, and ignition process is always that the stove is running
One difficulties, especially from not in contact with the personnel for crossing circulating fluidized bed boiler either bubbling bed boiler, is not being grasped a little
Before ignition method, Chang Yi causes bed material coking or fire extinguishing, has not only influenced the on time normal of boiler and has started, but also can cause the wave of manpower and materials
Take.
Currently used sparking mode, is lighted a fire in boiler exterior, is again put into the charcoal of burning after lighting a fire successfully
Burner hearth, then wind turbine is opened in place, carry out air blast, and such sparking mode is often unsuccessful, and the average duration of ignition needs
Or so 3 hours.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of side of the fluidisation igniting of recirculating fluidized bed
Method, realization that can be quickly are lighted a fire.
The present invention is achieved by the following technical solutions：Comprise the following steps：
(1) furnace bottom is laid on clinker, forms initial bed；
(2) charcoal is put into, charcoal is paved on initial bed, the height of laying is 500~800mm；
(3) charcoal is lighted, control temperature is at 400 DEG C；
(4) and then wind turbine is opened, temperature is fallen before in fluid bed, is further continued for rising to 600 DEG C；
(5) do not stop to add charcoal, continuous air blast；
(6) burner hearth is observed, burner hearth is slowly rubescent, and whole bottom material is advertised, and temperature reaches 900 DEG C, forms fluidisation shape
State, lights a fire successfully.
In the step (1), the height of initial bed is concordant with the position of fire door.
In the step (1), the particle diameter of clinker is 0~3mm in initial bed, and the phosphorus content of clinker is no more than 5%.After being easy to
Divulge information under phase fluidized state smooth.
Lump coal is put into after lighting a fire successfully to burn.It is able to ensure that and burns as soon as possible, improves efficiency of combustion.
The present invention has the following advantages compared with prior art：Overall process of the invention is simple, can be quickly real
Existing successful ignition, the overall duration of ignition is reduced to a hour by original three hours, and success rate improves, and substantially can
Once succeed.
Embodiment
Elaborate below to the embodiment of the present invention, the present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
The ignition process of the present embodiment comprises the following steps：
(1) furnace bottom is laid on clinker, forms initial bed；The height of initial bed is concordant with the position of fire door, in initial bed
The particle diameter of clinker is 0~3mm, and the phosphorus content of clinker is no more than 5%.It is smooth easy to divulge information under later stage fluidized state.
During igniting, bottom material can play the role of accumulation of heat.
(2) charcoal is put into, charcoal is paved on initial bed, the height of laying is 500~800mm；
(3) charcoal is lighted, control temperature is at 400 DEG C；
(4) and then wind turbine is opened, temperature is fallen before in fluid bed, is further continued for rising to 600 DEG C；
(5) do not stop to add charcoal, continuous air blast；
(6) burner hearth is observed, burner hearth is slowly rubescent, and whole bottom material is advertised, and temperature reaches 900 DEG C, forms fluidisation shape
State, lights a fire successfully；
(7) after lighting a fire successfully lump coal is put into burn.It is able to ensure that and burns as soon as possible, improves efficiency of combustion.
It can quickly realize successful ignition, the overall duration of ignition is reduced to a hour by original three hours, and
And success rate improves, and can once succeed substantially.
Enough inspection and preparation are done before igniting：Check the burning such as combustion chamber air distribution plate and separator, the circulatory system, it is interior
Portion is clean, and blast cap stands intact, and airing hole is unimpeded.Scum pipe, dust leg and returning charge valve, no stopping state, is closed flexible.
Boiler body thermal insulation fire-resistant layer without come off, disrepair phenomenon, all manholes, peep hole should all close, and sealing is tight.
Check whether forced-and-induced draft fan air register and air compartment, each air supply port of oil drop fire are normal, and switch should be flexible, and instruction is correct.
Check that the auxiliary systems such as coal bunker, feeder, deduster are working properly.
Oil ignition system air compressor machine (air atomizing), oil pump, pipe valve, igniter check, try to send normally comprehensively.
Check that air-introduced machine, air blower, overfire air fan foundation bolt have non-loosening.Whether blower cooling water, oil level are normal, disk
Car should be flexible, without the friction sound in wind turbine.
Check that boiler circuit pipe valve is normal, switching manipulation is flexible.
Check that the meters such as all pressure gauges, thermometer, flowmeter are intact normal, instruction is correct.
Prepare a certain number of igniting bottom materials, particle diameter is 0~3mm.Fixed bed igniting also needs to prepare a certain number of bituminous coal
And firewood.
Confirm that boiler drum level or quantity of circulating water are normal.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (4)
1. the method for the fluidisation igniting of a kind of recirculating fluidized bed, it is characterised in that comprise the following steps：
(1) furnace bottom is laid on clinker, forms initial bed；
(2) charcoal is put into, charcoal is paved on initial bed, the height of laying is 500~800mm；
(3) charcoal is lighted, control temperature is at 400 DEG C；
(4) and then wind turbine is opened, temperature is fallen before in fluid bed, is further continued for rising to 600 DEG C；
(5) do not stop to add charcoal, continuous air blast；
(6) burner hearth is observed, burner hearth is slowly rubescent, and whole bottom material is advertised, and temperature reaches 900 DEG C, forms fluidized state, point
Igneous work(.
A kind of 2. method of the fluidisation igniting of recirculating fluidized bed according to claim 1, it is characterised in that the step (1)
In, the height of initial bed is concordant with the position of fire door.
A kind of 3. method of the fluidisation igniting of recirculating fluidized bed according to claim 1, it is characterised in that the step (1)
In, the particle diameter of clinker is 0~3mm in initial bed, and the phosphorus content of clinker is no more than 5%.
4. the method for the fluidisation igniting of a kind of recirculating fluidized bed according to claim 1, it is characterised in that put after lighting a fire successfully
Enter lump coal to burn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711162171.4A CN107975791A (en) | 2017-11-21 | 2017-11-21 | A kind of method of the fluidisation igniting of recirculating fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711162171.4A CN107975791A (en) | 2017-11-21 | 2017-11-21 | A kind of method of the fluidisation igniting of recirculating fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107975791A true CN107975791A (en) | 2018-05-01 |
Family
ID=62010600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711162171.4A Pending CN107975791A (en) | 2017-11-21 | 2017-11-21 | A kind of method of the fluidisation igniting of recirculating fluidized bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107975791A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848670A (en) * | 2019-11-19 | 2020-02-28 | 大唐鸡西第二热电有限公司 | Novel ignition mode application of 300MW circulating fluidized bed boiler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1632380A (en) * | 2005-01-04 | 2005-06-29 | 王天伟 | Fluidized bed boiler hot material firing mode |
| CN101377299A (en) * | 2007-08-29 | 2009-03-04 | 霍尼韦尔国际公司 | Control of CFB boiler utilizing accumulated char in bed inventory |
| JP2009079803A (en) * | 2007-09-25 | 2009-04-16 | Kanrin Ri | High-temperature and high-pressure gas producing device |
| CN103292319A (en) * | 2013-05-17 | 2013-09-11 | 福建远翔化工有限公司 | Ignition method of boiling furnace |
| CN105605560A (en) * | 2015-12-23 | 2016-05-25 | 杭州燃油锅炉有限公司 | Micro-emission pulverized coal combustion system |
-
2017
- 2017-11-21 CN CN201711162171.4A patent/CN107975791A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1632380A (en) * | 2005-01-04 | 2005-06-29 | 王天伟 | Fluidized bed boiler hot material firing mode |
| CN101377299A (en) * | 2007-08-29 | 2009-03-04 | 霍尼韦尔国际公司 | Control of CFB boiler utilizing accumulated char in bed inventory |
| JP2009079803A (en) * | 2007-09-25 | 2009-04-16 | Kanrin Ri | High-temperature and high-pressure gas producing device |
| CN103292319A (en) * | 2013-05-17 | 2013-09-11 | 福建远翔化工有限公司 | Ignition method of boiling furnace |
| CN105605560A (en) * | 2015-12-23 | 2016-05-25 | 杭州燃油锅炉有限公司 | Micro-emission pulverized coal combustion system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848670A (en) * | 2019-11-19 | 2020-02-28 | 大唐鸡西第二热电有限公司 | Novel ignition mode application of 300MW circulating fluidized bed boiler |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180501 |
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| RJ01 | Rejection of invention patent application after publication |