CN105987380A - Rapid combustion type industrial powder combustion system - Google Patents
Rapid combustion type industrial powder combustion system Download PDFInfo
- Publication number
- CN105987380A CN105987380A CN201510092864.5A CN201510092864A CN105987380A CN 105987380 A CN105987380 A CN 105987380A CN 201510092864 A CN201510092864 A CN 201510092864A CN 105987380 A CN105987380 A CN 105987380A
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- China
- Prior art keywords
- combustion
- gas
- burner
- resisting steel
- air preheater
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
A rapid combustion type industrial powder combustion system is characterized by comprising a gas-solid premixing combustor, a heat-resistant steel hearth and a high-temperature air preheater. By means of the system, pulverized coal is rapidly ignited, stably combusted and thoroughly combusted in an industrial boiler. A combustion method is provided for clean utilization of coal in the field of the industrial boiler.
Description
Technical field
The present invention relates to the system in a kind of combustion of industrial boiler field, be specifically related to a kind of fast combustion industrial powder combustion
Burning system.
Background technology
The key component that coal is consumed as domestic primary energy, its clean utilization degree will produce weight to environment
Affect.Industrial Boiler as using the capital equipment of coal, its combustion system determine coal whether can by efficiently,
Environmental protection ground utilizes.
At present, domestic industrial coal powder combustion system the most progressively replaces traditional traveling-grate stoker combustion technology, becomes
For the combustion apparatus that Industrial Boiler is main.Industrial coal powder combustion system has that efficiency of combustion is high, smoke discharge amount is few,
It is prone to the advantages such as desulphurization and denitration.But generally there are two problems in industrial coal powder combustion technology: one, cannot fire
By the most fire-hazardous low volatile coal；Two, the boiler that capacity is less cannot be used.This is mainly due to mesh
Front industrial coal powder combustion system generally uses coal dust storage, Condensed transportation and boiler export air preheater structure.
Coal dust is through storage after a while, and its bulk density increases, surface moisture increases, and clustering phenomena even occurs.
Condensed transportation makes combustion air in First air not enough, and non-preheated air can not allow, and coal dust is dispersed to come.
The flue-gas temperature of boiler export ratio is relatively low, it is impossible to by the temperature of combustion-supporting for air preheat to coal dust needs.
To sum up, current industrial coal powder combustion system still suffers from the necessity improved further, to promote industrial coal powder
Burning plays its advantage.
Summary of the invention
The present invention is directed to the deficiency that domestic industry boiler coal-ash combustion system exists, invent the industry of a kind of fast combustion
Powder body combustion system, provides condition for the coal clean utilization in Industrial Boiler field.
The present invention is achieved through the following technical solutions, empty including gas-solid premix burner, heat resisting steel burner hearth and high temperature
Air preheater.
Described gas-solid premix burner, its combustion gas spout is positioned at burner First air runner, and gas outlet cuts
Identity distance is not less than 5 times of combustion gas nozzle pluggage from First air outlet.
Described heat resisting steel burner hearth, uses heat resisting steel to process.
Described high-temperature air preheater, is arranged in high-temperature flue gas region.
The gas-solid premix burner that the present invention uses, makes full use of the structure of burner, it is achieved combustion gas carries out premixing,
One secondary wind reasonable distribution, First air spout surely fire structure, secondary wind cyclone structure, it is ensured that when pure combustion gas puts into operation
Stable fully burning.When throwing powder, in First air, the combustion gas of premix can ensure that coal dust catches fire rapidly.Throw the powder initial stage,
A small amount of gas-fired combustion-supporting can be put into, it is ensured that steady combustion and after-flame.
The heat resisting steel burner hearth of the present invention, former furnace heating surface to fire side increase by one layer of heat resisting steel.With traditional
Water-evaporating furnace and castable refractory burner hearth are compared, and heat resisting steel has that accumulation of heat is few, the feature of quick heating so that fast
Combustion industrial powder burning boiler quickly enters steady statue.
The high-temperature air preheater of the present invention is arranged in high-temperature flue gas region, uses heat-resisting steels.Make combustion-supporting sky
Gas can meet or exceed 350 DEG C of combustion-supporting in power station boiler air.
To sum up, combustion system of the present invention has powder body deflagrate, rapidly enters the feature of steady statue.Make
Powder body burning is able to applications well on small-sized industrial boiler.
Accompanying drawing explanation
Fig. 1 is the present invention fast combustion industrial powder buner system schematic diagram；
Wherein, 1 for gas-solid premix burner, 2 be heat resisting steel burner hearth, 3 for high-temperature air preheater, 4 be pot
Stove burner hearth.
Fig. 2 is that the present invention is applied to horizontal internal combustion room combusting boiler schematic diagram；
Fig. 3 is that the present invention is applied to double drum longitudinal rooms combusting boiler schematic diagram；
Fig. 4 is that the present invention is embodied as case layout drawing.
Detailed description of the invention
Elaborating the specific embodiment of the present invention below, the present embodiment is carried out under premised on the present invention
Implement, give detailed embodiment and concrete operating process, but under protection scope of the present invention is not limited to
The embodiment stated.
As shown in Figure 4, the implementation case includes: gas-solid premix burner 1, heat resisting steel burner hearth 2, high temperature are empty
Air preheater 3, boiler furnace 4.
Described gas-solid premix burner 1 includes: fuel gas inlet 101, First air import 102, secondary wind are entered
Mouth 103, combustion gas spout 104, outlet bluff body 105, swirl vane 106, cyclone 107.
Described heat resisting steel burner hearth includes: heat resisting steel cylinder 201, ash-hole 202.
Described high-temperature air preheater 3 includes: air intlet 301, air outlet slit the 302, first tube layer 303,
Reversal chamber the 304, second tube layer 305.
Described boiler furnace 4 includes: shell the 401, first smoke pipe 402, shell reversal chamber 403, second
Smoke pipe 404, exhanst gas outlet 405, water inlet 406, steam (vapor) outlet 407, relief valve 408.
During boiler startup, combustion gas at a high speed spray into First air passage, and injection combustion air through combustion gas spout 104
Form half pre-mixing gas combustion, be then passed through exporting bluff body 105 and swirl vane 106, form stable flame.Treat
Burner hearth is brought rapidly up, secondary wind after high-temperature air preheater 3 is preheating to design temperature, First air coal dust gas
Flow and enter burner by First air import 102, and catch fire rapidly in outlet thermal-flame region.
Gradually reducing combustion gas after pulverized coal flame flameholding, boiler enters stable operation.Pulverized coal flame is heat-resisting
Fully burning in cylinder 201, the radiant heat of generation makes cylinder be brought rapidly up, and radiates heating shell 401
Produce steam.Using tiny structure to run in burner hearth, the ash that falls of generation is discharged by ash-hole 202.
High-temperature flue gas initially enters the first tube layer 303 of air preheater, enters the second pipe through reversal chamber 304
Layer 305, the first smoke pipe 402 subsequently into shell.Flue gas, through shell reversal chamber 403, travels further into
After second smoke stratification 404 is sufficiently cool, discharged by exhanst gas outlet 405.
By heat resisting steel chamber structure so that flue gas does not directly contact with wall-cooling surface so that coal dust firing exists
Small-sized industrial boiler is capable of.It addition, use pre-mixing gas combustion igniting, there is flame temperature height, burnt
Full feature so that breeze airflow catches fire rapidly.By high-temperature air preheater, combustion air is heated to
More than 350 DEG C, so ensure that coal dust is capable of stable burning.
Claims (4)
1. a fast combustion industrial powder combustion system, it is characterised in that including: gas-solid premix burner,
Heat resisting steel burner hearth and high-temperature air preheater.
Gas-solid premix burner the most according to claim 1, it is characterised in that combustion gas spout is positioned at combustion
In burner First air runner, gas outlet cross-sectional distance First air outlet is not less than 5 times of combustion gas nozzle pluggage.
Heat resisting steel burner hearth the most according to claim 1, it is characterised in that burner hearth is disposed with one to fire side
Individual sleeve, cylinder uses heat resisting steel material.
High-temperature air preheater the most according to claim 1, it is characterised in that high-temperature air preheater
It is arranged in high-temperature flue gas region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510092864.5A CN105987380A (en) | 2015-03-02 | 2015-03-02 | Rapid combustion type industrial powder combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510092864.5A CN105987380A (en) | 2015-03-02 | 2015-03-02 | Rapid combustion type industrial powder combustion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105987380A true CN105987380A (en) | 2016-10-05 |
Family
ID=57038076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510092864.5A Pending CN105987380A (en) | 2015-03-02 | 2015-03-02 | Rapid combustion type industrial powder combustion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105987380A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5977208A (en) * | 1982-10-25 | 1984-05-02 | Babcock Hitachi Kk | Combustion method |
| CN2534472Y (en) * | 2002-04-12 | 2003-02-05 | 姜政华 | Fine coal powder and natural gas two purpose burner |
| CN2854358Y (en) * | 2005-12-30 | 2007-01-03 | 李毓秀 | Gas boiler device capable of sufficient using residual heat |
| CN201527100U (en) * | 2009-10-28 | 2010-07-14 | 青岛特利尔环保锅炉工程有限公司 | Organic heat carrier boiler |
| CN201561415U (en) * | 2009-10-28 | 2010-08-25 | 青岛特利尔环保锅炉工程有限公司 | Steam boiler |
| CN103256590A (en) * | 2013-05-20 | 2013-08-21 | 北京科技大学 | Method and device for multi-grade mixed combustion of double fuels at cyclone state |
| CN203848261U (en) * | 2014-03-06 | 2014-09-24 | 安徽博瑞特热能设备股份有限公司 | Oil-gas fired boiler |
-
2015
- 2015-03-02 CN CN201510092864.5A patent/CN105987380A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5977208A (en) * | 1982-10-25 | 1984-05-02 | Babcock Hitachi Kk | Combustion method |
| CN2534472Y (en) * | 2002-04-12 | 2003-02-05 | 姜政华 | Fine coal powder and natural gas two purpose burner |
| CN2854358Y (en) * | 2005-12-30 | 2007-01-03 | 李毓秀 | Gas boiler device capable of sufficient using residual heat |
| CN201527100U (en) * | 2009-10-28 | 2010-07-14 | 青岛特利尔环保锅炉工程有限公司 | Organic heat carrier boiler |
| CN201561415U (en) * | 2009-10-28 | 2010-08-25 | 青岛特利尔环保锅炉工程有限公司 | Steam boiler |
| CN103256590A (en) * | 2013-05-20 | 2013-08-21 | 北京科技大学 | Method and device for multi-grade mixed combustion of double fuels at cyclone state |
| CN203848261U (en) * | 2014-03-06 | 2014-09-24 | 安徽博瑞特热能设备股份有限公司 | Oil-gas fired boiler |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161005 |