CN107060929A - A kind of central cooler low temperature waste gas and sintering smoke from big gas duct waste heat comprehensive utilization system - Google Patents
A kind of central cooler low temperature waste gas and sintering smoke from big gas duct waste heat comprehensive utilization system Download PDFInfo
- Publication number
- CN107060929A CN107060929A CN201710385531.0A CN201710385531A CN107060929A CN 107060929 A CN107060929 A CN 107060929A CN 201710385531 A CN201710385531 A CN 201710385531A CN 107060929 A CN107060929 A CN 107060929A
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- China
- Prior art keywords
- waste
- central cooler
- heat recovery
- sintering
- recovery device
- 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
- 239000002918 waste heat Substances 0.000 title claims abstract description 54
- 238000005245 sintering Methods 0.000 title claims abstract description 49
- 239000002912 waste gas Substances 0.000 title claims abstract description 26
- 239000007789 gas Substances 0.000 title claims abstract description 14
- 239000000779 smoke Substances 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000011084 recovery Methods 0.000 claims abstract description 33
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003546 flue gas Substances 0.000 claims abstract description 7
- 235000014171 carbonated beverage Nutrition 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000006392 deoxygenation reaction Methods 0.000 claims description 3
- 239000003517 fume Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
- F01K27/02—Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction 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
- F27D17/004—Systems for reclaiming waste heat
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a kind of central cooler low temperature waste gas and sintering smoke from big gas duct waste heat comprehensive utilization system.Including drum, central cooler low-temperature space waste-heat recovery device, sintering large flue waste-heat recovery device and steam electric power generator；The delivery port of the central cooler low-temperature space waste-heat recovery device is connected with the water inlet of the drum, the delivery port of the drum is connected with the water inlet of the sintering large flue waste-heat recovery device, the carbonated drink outlet of the sintering large flue waste-heat recovery device is connected with the carbonated drink entrance of the drum, the steam (vapor) outlet of the drum is connected with the steam ports that enters of the steam electric power generator, and the delivery port of the steam electric power generator is connected with the water inlet of the central cooler low-temperature space waste-heat recovery device.The present invention has reclaimed the high-temperature flue gas waste heat of sintering machine sintering and 100~150 DEG C of low temperature waste gas waste heats in the area of central cooler III, and according to the second law of thermodynamics, reasonable Arrangement heating surface, step fume afterheat improves waste heat recovery volume to greatest extent.
Description
Technical field
The present invention relates to a kind of sintering waste heat utilization system.
Background technology
The residual heat resources of sintering production process are mainly included on high-temperature waste flue gas waste heat and central cooler that sintering machine is sintered
Sintering ore cooling waste gas waste heat two parts, in sintering circuit total energy consumption, the waste heat band of this two parts waste gas walks close to 50% heat
Amount.At present, the sintering plant of most domestic is main to the waste heat recovery of sintering on central cooler more than the high-temp waste gas in Ith area and IIth area
Recuperation of heat, typically directly discharges for the low temperature waste gas in IIIth area, does not do waste heat recovery.
The content of the invention
Utilized in view of the above-mentioned problems, the present invention provides a kind of central cooler low temperature waste gas with sintering smoke from big gas duct residual heat integrative
System.
To reach above-mentioned purpose, a kind of central cooler low temperature waste gas of the invention utilizes system with sintering smoke from big gas duct residual heat integrative
System, including drum, central cooler low-temperature space waste-heat recovery device, sintering large flue waste-heat recovery device and steam electric power generator；
The water inlet of the delivery port and the drum of the central cooler low-temperature space waste-heat recovery device is connected by feedwater piping
Logical, the delivery port of the drum is connected with the water inlet of the sintering large flue waste-heat recovery device, more than the sintering large flue
The carbonated drink outlet of heat reclamation device is connected with the carbonated drink entrance of the drum, the steam (vapor) outlet of the drum and the steam-electric power
The steam ports that enters of device is connected, and the delivery port of the steam electric power generator enters water with the central cooler low-temperature space waste-heat recovery device
Mouth connection；
The steam electric power generator includes steam turbine and generator；The steam turbine and generator are connected by shaft coupling；
The air intake of the steam turbine is connected by pipeline with the venthole of drum, and Steam Actuation steam turbine rotates acting and is delivered to generating
On machine.
Further, the steam electric power generator also includes condenser, and the water inlet of the condenser passes through pipeline and benefit
The delivery port connection of vapour condensing turbine, the delivery port of the condenser is filled by pipeline and the waste heat recovery of central cooler low-temperature space
The water inlet connection put.
Further, it is provided with condensate on the pipeline between condenser and central cooler the low-temperature space waste-heat recovery device
Pump.
Further, central cooler low-temperature space waste-heat recovery device includes water tank, is arranged on above the area of central cooler III along flue gas
Economizer and feed water preheater that flow direction is set gradually.
Wherein, the going out of the feed water preheater, water inlet are respectively by pipeline and the water tank inlet and the condensation
Device is connected；The going out of the economizer, water inlet is connected by pipeline with the drum and water outlet of water tank respectively.
Further, sintering large flue waste-heat recovery device includes the evaporator being arranged in sintering large flue, the steaming
Hair the going out of device, water inlet is connected with the drum.
Further, the water inlet of the central cooler low-temperature space waste-heat recovery device is connected with feedwater piping, the feedwater
Feed-regulating valve group is provided with pipeline；
Feed-regulating valve group described in liquid level sensor is provided with the water separator to be used to receive liquid level sensor
The signal sent is so as to control water separator water level within a preset range.
Further, the drum, including multiple water inlets and multiple delivery ports.
Further, the water being provided with the water tank in oxygen-eliminating device, water supply case carries out deoxygenation.
The present invention has reclaimed two kinds of residual heat resources of generation in sintering industrial production：The high-temperature flue gas waste heat of sintering machine sintering
(in sintering large flue) and low temperature (100~150 DEG C) waste gas residual heat in the area of central cooler III, and according to the second law of thermodynamics, close
Removing the work puts heating surface, and step fume afterheat improves waste heat recovery volume, reduces the operating cost of sintering plant to greatest extent.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of central cooler low temperature waste gas and sintering smoke from big gas duct waste heat comprehensive utilization system.
Central cooler 1；Sinter large flue 2；Steam turbine 3；Condensate pump 4；Feed water preheater 5；Deaerator and water tank 6；Feedwater
Pump 7；Economizer 8；Drum 9；Evaporator 10；Generator 11；Condenser 12.
It should be noted that these accompanying drawings and word description are not intended as the design model for limiting the present invention in any way
Enclose, but be that those skilled in the art illustrate idea of the invention by reference to specific embodiment.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in embodiment is clearly and completely described, following examples be used for illustrate the present invention, but
It is not limited to the scope of the present invention.
In the description of the invention, it is necessary to explanation, the orientation or position of the instruction such as term " on ", " under ", " interior ", " outer "
It is, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and simplify description to put relation, rather than
Indicate or imply that the device or element of meaning there must be specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as limitation of the present invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " company
Connect " it should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or it is integrally connected；It can be machine
Tool is connected or electrically connected；Can be joined directly together, can also be indirectly connected to by intermediary.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment 1
As shown in figure 1, in the present embodiment, the condensate condensed in condenser 13 squeezes into feedwater by condensate pump 4
In preheater 5, the waste gas residual heat exchanged heat by economizer 8 is absorbed, temperature enters in deaerator and water tank 6 after being increased to,
Water after deoxygenation, which enters after feed pump 7 pressurizes, to be squeezed into economizer 8, absorbs the low temperature (100~150 DEG C) in the area of central cooler III
Enter after waste gas residual heat in drum 9, drum 9 is connected with each other with evaporator 10 by least two-way pipeline, and water is in the vaporizer 10
It is changed into steam water interface after the heat for absorbing waste gas to enter in drum 9, this part Hydraulic Circulation is imported and exported by evaporator 10
The severe difference of medium is completed in the pipeline of two ends, forms a natural convection loop, the steam water interface of generation is completed in drum 9
Steam-water separation process, a saturated vapor part is gone in deaerator and water tank 6, completes the oxygen removal process of water, and another part enters
In steam turbine 3, pushing turbine acting；Steam turbine 3 and generator 11 are connected by shaft coupling, and Steam Actuation steam turbine is rotated and done
Work(is delivered on generator, is then changed into electric energy, generates electricity outer defeated；The steam for finishing work(is changed into after exhaust steam entering condenser 12, warp
Cross and squeezed into after condensing as condensate by condensate pump 4 in feed water preheater 5, complete a steam/water circulating.
The waste heat that the present embodiment is reclaimed includes two parts：High temperature (250~450 DEG C) fume afterheat of sintering machine sintering (burns
Tie large flue in) and the area of central cooler III low temperature (100~150 DEG C) waste gas residual heat.Using in economizer 8 and feed water preheater 5
(20~80 DEG C) of water at low temperature absorb low temperature (100~150 DEG C) waste gas in the area of central cooler 1 III, utilize evaporator 10 to absorb sintering
High-temperature flue gas waste heat in large flue 2, realizes that energy cascade is reclaimed.
The present embodiment has reclaimed two kinds of residual heat resources of generation in sintering industrial production：The high-temperature flue gas waste heat of sintering machine sintering
(in sintering large flue) and low temperature (100~150 DEG C) waste gas residual heat in the area of central cooler III, and according to the second law of thermodynamics, close
Removing the work puts heating surface, and step fume afterheat improves waste heat recovery volume, reduces the operating cost of sintering plant to greatest extent.
Embodiment 2
On the basis of embodiment 1, the water inlet of the central cooler low-temperature space waste-heat recovery device is connected with feedwater piping,
Feed-regulating valve group is provided with the feedwater piping；
Feed-regulating valve group described in liquid level sensor is provided with the water separator to be used to receive liquid level sensor
The signal sent is so as to control water separator water level within a preset range.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, and it is any to be familiar with sheet
Those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in should all be covered
Within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should be defined by claim is defined.
Claims (8)
1. a kind of central cooler low temperature waste gas and sintering smoke from big gas duct waste heat comprehensive utilization system, it is characterised in that：Including drum,
Central cooler low-temperature space waste-heat recovery device, sintering large flue waste-heat recovery device and steam electric power generator；
The delivery port of the central cooler low-temperature space waste-heat recovery device is connected with the water inlet of the drum by feedwater piping, institute
The delivery port for stating drum is connected with the water inlet of the sintering large flue waste-heat recovery device, the sintering large flue waste heat recovery
The carbonated drink outlet of device is connected with the carbonated drink entrance of the drum, the steam (vapor) outlet of the drum and the steam electric power generator
Enter steam ports connection, the water inlet of the delivery port of the steam electric power generator and the central cooler low-temperature space waste-heat recovery device connects
It is logical；
Feed pump is provided with described feedwater piping；
The steam electric power generator includes steam turbine and generator；The steam turbine and generator are connected by shaft coupling；It is described
The air intake of steam turbine is connected by pipeline with the venthole of drum, and Steam Actuation steam turbine rotates acting and is delivered to generator
On.
2. a kind of central cooler low temperature waste gas according to claim 1 and sintering smoke from big gas duct waste heat comprehensive utilization system,
It is characterized in that：The steam electric power generator also includes condenser, and the water inlet of the condenser passes through pipeline and steam turbine
Delivery port is connected, and the delivery port of the condenser is connected by pipeline with the water inlet of central cooler low-temperature space waste-heat recovery device.
3. a kind of central cooler waste gas according to claim 2 and sintering smoke from big gas duct waste heat comprehensive utilization system, it is special
Levy and be：Condensate pump is provided with pipeline between condenser and central cooler the low-temperature space waste-heat recovery device.
4. a kind of central cooler low temperature waste gas according to claim 1 and sintering smoke from big gas duct waste heat comprehensive utilization system,
It is characterized in that：Central cooler low-temperature space waste-heat recovery device includes water tank, is arranged on above the area of central cooler III along flow of flue gas side
To the economizer and feed water preheater set gradually；
Wherein, the going out of the feed water preheater, water inlet are connected by pipeline and the water tank inlet and the condenser respectively
It is logical；The going out of the economizer, water inlet is connected by pipeline with the drum water inlet and water outlet of water tank respectively.
5. a kind of central cooler low temperature waste gas according to claim 1 and sintering smoke from big gas duct waste heat comprehensive utilization system,
It is characterized in that：Sintering large flue waste-heat recovery device includes the evaporator being arranged in sintering large flue, the evaporator
Go out, water inlet is connected with the drum.
6. a kind of central cooler low temperature waste gas according to claim 1 and sintering smoke from big gas duct waste heat comprehensive utilization system,
It is characterized in that：The water inlet of the central cooler low-temperature space waste-heat recovery device is connected with feedwater piping, on the feedwater piping
It is provided with feed-regulating valve group；
Feed-regulating valve group described in liquid level sensor is provided with the water separator to send for receiving liquid level sensor
Signal so as to controlling water separator water level within a preset range.
7. a kind of central cooler low temperature waste gas according to claim 1 and sintering smoke from big gas duct waste heat comprehensive utilization system,
It is characterized in that：It is characterized in that：The drum, including multiple water inlets and multiple delivery ports.
8. a kind of central cooler low temperature waste gas according to claim 4 and sintering smoke from big gas duct waste heat comprehensive utilization system,
It is characterized in that：The water being provided with the water tank in oxygen-eliminating device, water supply case carries out deoxygenation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385531.0A CN107060929A (en) | 2017-05-26 | 2017-05-26 | A kind of central cooler low temperature waste gas and sintering smoke from big gas duct waste heat comprehensive utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385531.0A CN107060929A (en) | 2017-05-26 | 2017-05-26 | A kind of central cooler low temperature waste gas and sintering smoke from big gas duct waste heat comprehensive utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107060929A true CN107060929A (en) | 2017-08-18 |
Family
ID=59610814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710385531.0A Pending CN107060929A (en) | 2017-05-26 | 2017-05-26 | A kind of central cooler low temperature waste gas and sintering smoke from big gas duct waste heat comprehensive utilization system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968317A (en) * | 2010-11-25 | 2011-02-09 | 中冶赛迪工程技术股份有限公司 | Sintering waste heat generating system |
| CN105783532A (en) * | 2016-05-26 | 2016-07-20 | 中冶北方（大连）工程技术有限公司 | Totally-closed waste heat recycling device of ring cooling machine |
| CN205537163U (en) * | 2016-04-20 | 2016-08-31 | 北京佰能蓝天科技股份公司 | Cold quick -witted low temperature waste heat from flue gas of sintered ring uses multipurposely power generation facility |
| CN206722889U (en) * | 2017-05-26 | 2017-12-08 | 中冶华天南京工程技术有限公司 | A kind of central cooler low temperature waste gas and sintering smoke from big gas duct waste heat comprehensive utilization system |
-
2017
- 2017-05-26 CN CN201710385531.0A patent/CN107060929A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968317A (en) * | 2010-11-25 | 2011-02-09 | 中冶赛迪工程技术股份有限公司 | Sintering waste heat generating system |
| CN205537163U (en) * | 2016-04-20 | 2016-08-31 | 北京佰能蓝天科技股份公司 | Cold quick -witted low temperature waste heat from flue gas of sintered ring uses multipurposely power generation facility |
| CN105783532A (en) * | 2016-05-26 | 2016-07-20 | 中冶北方（大连）工程技术有限公司 | Totally-closed waste heat recycling device of ring cooling machine |
| CN206722889U (en) * | 2017-05-26 | 2017-12-08 | 中冶华天南京工程技术有限公司 | A kind of central cooler low temperature waste gas and sintering smoke from big gas duct waste heat comprehensive utilization system |
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Application publication date: 20170818 |
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