CN106940142A - A kind of kiln head boiler of cement kiln waste-heat power generation system - Google Patents
A kind of kiln head boiler of cement kiln waste-heat power generation system Download PDFInfo
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- CN106940142A CN106940142A CN201710351811.XA CN201710351811A CN106940142A CN 106940142 A CN106940142 A CN 106940142A CN 201710351811 A CN201710351811 A CN 201710351811A CN 106940142 A CN106940142 A CN 106940142A
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- China
- Prior art keywords
- boiler
- power generation
- generation system
- heat power
- superheater
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a kind of kiln head boiler of cement kiln waste-heat power generation system, belong to cement plant heat recovery technical field.The kiln head boiler is vertical, and exhanst gas outlet is arranged at the top of boiler, and boiler bottom is provided with built-in expansion chamber, and the top of built-in expansion chamber is provided with gas approach；Boiler internal is sequentially provided with economizer, evaporator and superheater from top to down.Kiln head boiler proposed by the present invention, by reasonably being transformed former upper wind inlet type kiln head boiler, this is applied in the past using in the project of upper air inlet boiler, under conditions of boiler is changed without, lifting generated energy is reached, improves the purpose of Waste Heat Power Station economic benefit.
Description
Technical field
The invention discloses a kind of kiln head boiler design suitable for cement kiln waste-heat power generation system, belong to cement plant waste heat
Utilization technology field.
Background technology
The kiln head boiler of cement kiln residual heat generating project uses upper wind inlet type substantially in the market, and is provided with external
Expansion chamber.Show by operation for many years, such upper wind inlet type steam generator system has radiation loss and resistance is excessive, heated
The drawback such as surface wear dust stratification is serious, have impact on the economy and security of cogeneration.
Lower wind inlet type kiln head boiler eliminates external expansion chamber, expansion chamber and boiler integrated design, is dissipated with system
Heat loss and resistance are small, and heating surface is not easy to wear to wait outstanding advantages, is verified by numerous items.But, how
This kiln head boiler is applied in the cement kiln residual heat generating project of existing use upper wind inlet type boiler, it is also many to need
The problem of transformation and solution.
The content of the invention
The undercapacity that exists for upper wind inlet type boiler, the problem of generated energy is low, the present invention is proposed more than a kind of cement kiln
The kiln head boiler of heat generating system, by reasonably being transformed upper wind inlet type kiln head boiler, use before this is applied to
In the project of upper air inlet boiler, under conditions of boiler is changed without, lifting generated energy is reached, Waste Heat Power Station economic benefit is improved
Purpose.
The technical solution adopted by the present invention is as follows：
A kind of kiln head boiler of cement kiln waste-heat power generation system, is vertical, and exhanst gas outlet is arranged at the top of boiler, institute
Boiler bottom is stated provided with built-in expansion chamber, the top of built-in expansion chamber is provided with gas approach；The boiler internal from upper and
Under be sequentially provided with economizer, evaporator and superheater.
Further, it is disposed with false tube between the built-in expansion chamber and superheater.
Further, it is provided with homogenizing plate inside the built-in expansion chamber.
Further, the top of the built-in expansion chamber is disposed with the grey angle steel of gear.
Further, it is provided with dividing plate between the economizer, evaporator, superheater.
Further, the quantity of the economizer is two, and the quantity of the evaporator is two, the number of the superheater
Measure as one.
Further, the economizer, evaporator and superheater use the box type structure being made up of spiral fin coil,
The thickness of fin is 0.8~1.0mm, and spacing is in 6~12mm, and the height of fin is no more than the half of pipe diameter.
Further, the economizer, evaporator and superheater use suspension type structure.
Further, the hand hole of the economizer, evaporator and superheater uses welded type.
Further, the economizer, evaporator and superheater are separately through steelframe load-bearing.
The present invention is transformed existing cement kiln waste-heat power generation system kiln head boiler, is had the characteristics that：
(1) kiln head boiler expansion chamber of the invention and boiler integrated design, flue gas bottom in and top out.With upper wind inlet type boiler
Compare, kiln head boiler compact conformation of the invention, floor space is small, and radiation loss is few, and flue gas resistance is small.
(2) heating surface of kiln head boiler uses spiral fin coil, and box type dispatches from the factory, and compact conformation is easy for installation.
(3) each economizer, evaporator and superheater surface bobbin carriage weight are separately through steelframe load-bearing, and thermal expansion is free,
Swell increment is not accumulated, and the influence to boiler body is small.
(4) present invention takes sedimentation-low flow velocity- flow-to drop the measures such as kinetic energy from the mechanism of abrasion, reduce by
Hot surface wear leakage, the persistent ailment that can effectively prevent kiln head boiler tube wear from revealing：
1. most of clinker particles are separated using big volume expansion chamber, reduces flue gas flying dust concentration；
2. whole boiler body air and gas system low flow velocity design, because flow velocity and wear extent are into cube relation；
3. homogenizing plate is set inside expansion chamber, and optimization flue gas enters the flow field of boiler, prevent flue gas local flow field deteriorate and
Produce abrasion；
4. the grey angle steel of expansion chamber top arrangement gear, further prevents that a small amount of bulky grain clinker from entering heating surface；
5. false tube is arranged between expansion chamber and superheater, further reduction flying dust enters the inertia kinetic energy of heating surface, mitigates
Subsequent thermal surface wear；
6. dividing plate is set between economizer, evaporator and superheater prevents flue gas short circuit, prevents heating surface local because of flue gas
Wash away strongly and the pipe that weares and teares.
Brief description of the drawings
Fig. 1 is the cement kiln waste-heat power generation system kiln head boiler of prior art.1- exhanst gas outlets；2- superheaters；3- evaporates
Device I；4- evaporators II；5- economizers I；6- economizers II；7- ash buckets；8- original exhanst gas outlets.
Fig. 2 is the cement kiln waste-heat power generation system kiln head boiler of the present invention.Gas approach after 9- transformations；10- is built-in heavy
Room drops；11- steelframes；12- false tubes；13- homogenizing plates；The grey angle steel of 14- gears；15- hand holes.
Fig. 3 is another implementation structure of the cement kiln waste-heat power generation system kiln head boiler of the present invention.
Embodiment
It is described further below in conjunction with drawings and Examples.
The present invention is transformed the existing cement kiln waste-heat power generation system kiln head boilers of Fig. 1, including to system cigarette airduct
Road, external expansion chamber, stove internal heating surface, steel construction, the design and transformation of body pipeline and heat-insulation layer.Improved furnace chamber
Heating surface is followed successively by superheater, evaporator, economizer along flue gas flow direction.Specially：
1) transformation of the transformation of smoke wind pipe mainly to former kiln head boiler discharge pipe, former discharge pipe is transform as containing built-in
The intake stack of the kiln head boiler of formula expansion chamber 10, former intake stack is not changed；Former exhanst gas outlet 8 is cancelled, in built-in expansion chamber
Increase gas approach 9, flue gas bottom in and top out above 10.
2) former external expansion chamber is cancelled, the ash bucket that former boiler export ash bucket 7 is changed to act on containing sedimentation separation is built-in
Formula expansion chamber 10 and kiln head boiler integrated design, and settable steelframe 11 supports built-in expansion chamber 10.
3) stove internal heating surface order changes, and (temperature is terraced along flue gas flow direction for improved kiln head boiler heating surface arrangement
Degree direction) superheater, evaporator, economizer are sequentially arranged, it can so greatly promote generated energy.Superheater, evaporator and province
Coal device is using the box type structure that is made up of spiral fin coil, and the thickness of fin is 0.8~1.0mm, spacing in 6~12mm,
The height of fin is no more than the half of pipe diameter.Superheater, evaporator, the weight of economizer separately through steelframe load-bearing,
Each heating surface, can be with free wxpansion by using suspension type structure, it is to avoid weld seam produces stress fatigue destruction, causes weld bond to be let out
Dew.Dividing plate is set between superheater, evaporator, each heating surface of economizer prevents flue gas short circuit.
There are two kinds of embodiments in actual transformation process：(1) during Fig. 2 transformation is implemented, the position of former evaporator II 4 is not
Dynamic, remaining superheater 2, evaporator I3, economizer I 5, economizer II 6, which release to be resequenced according to lower air intake flue gas flow direction, pacifies
Dress.(2) during Fig. 3 transformation is implemented, former evaporator I3, the bobbin carriage position of evaporator II 4 are motionless, and the position of former economizer I 5 is changed to
Superheater 2, the position of former superheater 2 is changed to economizer I 5, and raw steel top of the trellis increases 2 meters, and former economizer II 6 is moved on to most upper
Portion.
4) transformation of body pipeline and heat-insulation layer is specifically designed and changed according to boiler steam-water pipeline circulation theory
Make.
The boiler of the present invention is vertical, and the heat smoke extracted in the middle part of the grout line grate-cooler is by connecting pipe from flue gas
Import 9 enters lower portion thereof built-in expansion chamber 10 separation flue, after removing most of clinker particles, flue gas from the bottom up according to
It is secondary that heat exchange is carried out by superheater 2, evaporator I3, evaporator II 4, economizer I 5, economizer II 6, finally by top flue
Exhanst gas outlet 1 discharge.Evaporator is regardless of flue gas flow direction, always in each heating surface centre position, therefore, the position of evaporator
Put as far as possible motionless, but to adjust the flow velocity of tedge and down-comer, to meet the reliability of water circulation.
In the present embodiment, the built-in inside of expansion chamber 10 sets homogenizing plate 13, and the top of expansion chamber 10 arrangement keeps off grey angle steel 14,
Two row's false tubes 12 are arranged between expansion chamber 10 and superheater 2.In addition, the hand hole 15 of superheater, evaporator, economizer is using weldering
Formula is connect, prevents leakage.
Claims (10)
1. a kind of kiln head boiler of cement kiln waste-heat power generation system, is vertical, exhanst gas outlet is arranged at the top of boiler, and it is special
Levy and be, the boiler bottom is provided with built-in expansion chamber, the top of built-in expansion chamber is provided with gas approach；In the boiler
Portion is sequentially provided with economizer, evaporator and superheater from top to down.
2. a kind of kiln head boiler of cement kiln waste-heat power generation system as claimed in claim 1, it is characterised in that described built-in
False tube is disposed between expansion chamber and superheater.
3. a kind of kiln head boiler of cement kiln waste-heat power generation system as claimed in claim 1, it is characterised in that described built-in
Homogenizing plate is provided with inside expansion chamber.
4. a kind of kiln head boiler of cement kiln waste-heat power generation system as claimed in claim 1, it is characterised in that described built-in
The top of expansion chamber is disposed with the grey angle steel of gear.
5. a kind of kiln head boiler of cement kiln waste-heat power generation system as claimed in claim 1, it is characterised in that province's coal
Dividing plate is provided between device, evaporator, superheater.
6. a kind of kiln head boiler of cement kiln waste-heat power generation system as claimed in claim 1, it is characterised in that the economizer
Quantity be two, the quantity of the evaporator is two, and the quantity of the superheater is one.
7. a kind of kiln head boiler of cement kiln waste-heat power generation system as claimed in claim 1, it is characterised in that province's coal
Device, evaporator and superheater are using the box type structure being made up of spiral fin coil, and the thickness of fin is 0.8~1.0mm,
Away from 6~12mm, the height of fin is no more than the half of pipe diameter.
8. a kind of kiln head boiler of cement kiln waste-heat power generation system as claimed in claim 1, it is characterised in that province's coal
Device, evaporator and superheater use suspension type structure.
9. a kind of kiln head boiler of cement kiln waste-heat power generation system as claimed in claim 1, it is characterised in that province's coal
The hand hole of device, evaporator and superheater uses welded type.
10. a kind of kiln head boiler of cement kiln waste-heat power generation system as described in one of claim 1 to 9, it is characterised in that institute
Economizer, evaporator and superheater are stated separately through steelframe load-bearing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351811.XA CN106940142A (en) | 2017-05-18 | 2017-05-18 | A kind of kiln head boiler of cement kiln waste-heat power generation system |
| PCT/CN2017/105800 WO2018209884A1 (en) | 2017-05-18 | 2017-10-12 | Kiln head boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351811.XA CN106940142A (en) | 2017-05-18 | 2017-05-18 | A kind of kiln head boiler of cement kiln waste-heat power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106940142A true CN106940142A (en) | 2017-07-11 |
Family
ID=59465115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710351811.XA Withdrawn CN106940142A (en) | 2017-05-18 | 2017-05-18 | A kind of kiln head boiler of cement kiln waste-heat power generation system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106940142A (en) |
| WO (1) | WO2018209884A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018209884A1 (en) * | 2017-05-18 | 2018-11-22 | 南京凯盛开能环保能源有限公司 | Kiln head boiler |
| CN109297005A (en) * | 2018-11-05 | 2019-02-01 | 南京凯盛开能环保能源有限公司 | A kind of boiler plant and method of the afterheat generating system suitable for blast-furnace cement sensible heat recycling |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201688715U (en) * | 2010-06-04 | 2010-12-29 | 华南理工大学 | Kiln head waste heat boiler with fly ash separating chamber |
| CN103574570A (en) * | 2013-10-31 | 2014-02-12 | 安徽海螺川崎节能设备制造有限公司 | Novel heat recovery boiler of cement kiln head |
| CN205174409U (en) * | 2015-11-27 | 2016-04-20 | 江苏东九重工股份有限公司 | Cement kiln kiln hood exhaust -heat boiler deposit room flue equipment |
| CN206755904U (en) * | 2017-05-18 | 2017-12-15 | 南京凯盛开能环保能源有限公司 | A kind of kiln head boiler of cement kiln waste-heat power generation system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2452689A1 (en) * | 1979-03-27 | 1980-10-24 | Saint Gobain | PROCESS FOR RECOVERING HEAT FROM FUMES |
| CN201170543Y (en) * | 2008-03-18 | 2008-12-24 | 南京凯盛开能环保能源有限公司 | Simple middle/low-temperature waste heat power generation system kiln head boiler for cement kiln |
| CN201475977U (en) * | 2009-09-11 | 2010-05-19 | 唐山三友热电有限责任公司 | Low-temperature coal economizer tube bundle |
| CN102865746A (en) * | 2011-07-04 | 2013-01-09 | 广东开能环保能源有限公司 | Improved waste heat power generation system for cement industry |
| CN104654816B (en) * | 2015-02-10 | 2016-08-24 | 南京凯盛开能环保能源有限公司 | Steam turbine directly drives cement kiln bootstrap system and the method for rotating machinery |
| CN205208511U (en) * | 2015-11-27 | 2016-05-04 | 江苏东九重工股份有限公司 | Cement kiln kiln hood exhaust -heat boiler and arrangement structure of evaporimeter heat transfer facial canal thereof |
| CN106940142A (en) * | 2017-05-18 | 2017-07-11 | 南京凯盛开能环保能源有限公司 | A kind of kiln head boiler of cement kiln waste-heat power generation system |
-
2017
- 2017-05-18 CN CN201710351811.XA patent/CN106940142A/en not_active Withdrawn
- 2017-10-12 WO PCT/CN2017/105800 patent/WO2018209884A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201688715U (en) * | 2010-06-04 | 2010-12-29 | 华南理工大学 | Kiln head waste heat boiler with fly ash separating chamber |
| CN103574570A (en) * | 2013-10-31 | 2014-02-12 | 安徽海螺川崎节能设备制造有限公司 | Novel heat recovery boiler of cement kiln head |
| CN205174409U (en) * | 2015-11-27 | 2016-04-20 | 江苏东九重工股份有限公司 | Cement kiln kiln hood exhaust -heat boiler deposit room flue equipment |
| CN206755904U (en) * | 2017-05-18 | 2017-12-15 | 南京凯盛开能环保能源有限公司 | A kind of kiln head boiler of cement kiln waste-heat power generation system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018209884A1 (en) * | 2017-05-18 | 2018-11-22 | 南京凯盛开能环保能源有限公司 | Kiln head boiler |
| CN109297005A (en) * | 2018-11-05 | 2019-02-01 | 南京凯盛开能环保能源有限公司 | A kind of boiler plant and method of the afterheat generating system suitable for blast-furnace cement sensible heat recycling |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018209884A1 (en) | 2018-11-22 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170711 |