CN107676763A - A kind of sintering exhaust-heat boiler Low Temperature Steam utilization system - Google Patents
A kind of sintering exhaust-heat boiler Low Temperature Steam utilization system Download PDFInfo
- Publication number
- CN107676763A CN107676763A CN201711019794.6A CN201711019794A CN107676763A CN 107676763 A CN107676763 A CN 107676763A CN 201711019794 A CN201711019794 A CN 201711019794A CN 107676763 A CN107676763 A CN 107676763A
- Authority
- CN
- China
- Prior art keywords
- heat boiler
- connecting line
- waste heat
- steam
- sintering exhaust
- 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.)
- Granted
Links
- 238000005245 sintering Methods 0.000 title claims abstract description 57
- 239000002918 waste heat Substances 0.000 claims abstract description 70
- 230000008676 import Effects 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 abstract description 23
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000008896 Opium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229960001027 opium Drugs 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
-
- 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
Abstract
The invention discloses a kind of sintering exhaust-heat boiler Low Temperature Steam utilization system, including two sets of sintering exhaust-heat boiler groups, often set sintering exhaust-heat boiler group includes a large flue waste heat boiler and a central cooler waste heat boiler, the steam (vapor) outlet for often covering large flue waste heat boiler in sintering exhaust-heat boiler group is connected by the first connecting line with the steam inlet of superheater in corresponding central cooler waste heat boiler respectively, two first connecting lines are connected by the second connecting line, it is provided with the second connecting line some being opened and closed the valve of the second connecting line, it is on every first connecting line and some being opened and closed the valve of the first connecting line positioned at being provided between superheater steam inlet in the second connecting line connection and corresponding central cooler waste heat boiler.It is an advantage of the invention that：It is avoided that and low-temperature saturated steam is diffused, reduce energy waste and noise pollution, improves sintering waste heat organic efficiency.
Description
Technical field
The present invention relates to sintering waste heat generating Steam Recovery technical field, and in particular to a kind of sintering exhaust-heat boiler low temperature steams
Steam composite utilizes system.
Background technology
At present, in order to recycle in sintering plant sintering machine and central cooler more than the high-temperature flue gas caused by the course of work
Heat, two sets of sintering exhaust-heat boiler groups are typically configured with Shao Ji factories, often covering sintering exhaust-heat boiler group includes one to reclaim
Using the large flue waste heat boiler and one of waste heat in sintering machine in the course of the work caused high-temperature flue gas reclaiming profit
With the central cooler waste heat boiler of waste heat in central cooler in the course of the work caused high-temperature flue gas, wherein in large flue waste heat boiler
Evaporator only is included, central cooler waste heat boiler includes evaporator and superheater, often covers large flue waste heat in sintering exhaust-heat boiler group
The steam (vapor) outlet of boiler is connected by the first connecting line with the steam inlet of superheater in corresponding central cooler waste heat boiler respectively
It is logical.During work, the heat-exchanging water in every every central cooler waste heat boiler produces 320 DEG C after evaporator and superheater processing successively
~360 DEG C of superheated steam supplies steam turbine power generation, while 200 DEG C~250 DEG C of saturated vapor caused by large flue waste heat boiler
Overheated in the superheater that can be also sent to by corresponding first connecting line in corresponding central cooler waste heat boiler, steam saturation
The superheated steam that vapour also becomes 320 DEG C~360 DEG C supplies steam turbine power generation.But when the central cooler in certain a set of sintering exhaust-heat boiler
When waste heat boiler breaks down, saturated vapor caused by the large flue waste heat boiler in the set sintering exhaust-heat boiler will be unable to by mistake
Heat can now be forced the large flue waste heat pot in the set sintering exhaust-heat boiler into the superheated steam for reaching turbine inlet temperature
These low-temperature saturated steams for not reaching turbine inlet temperature requirement caused by stove diffuse, and cause the very big wave of the energy
Take, cause sintering waste heat organic efficiency low.
The content of the invention
It is an object of the invention to provide a kind of a kind of high sintering exhaust-heat boiler Low Temperature Steam of sintering waste heat organic efficiency is comprehensive
Conjunction utilizes system.
To achieve the above object, present invention employs following technical scheme：A kind of described sintering exhaust-heat boiler low temperature steams
Steam composite utilizes system, including two sets of sintering exhaust-heat boiler groups, and often covering sintering exhaust-heat boiler group includes a large flue waste heat pot
Stove and a central cooler waste heat boiler, the steam (vapor) outlet of large flue waste heat boiler in sintering exhaust-heat boiler group is often covered respectively by the
One connecting line is connected with the steam inlet of superheater in corresponding central cooler waste heat boiler, and two first connecting lines pass through
Two connecting lines are connected, be provided with the second connecting line it is some to be opened and closed the valve of the second connecting line, at every
On first connecting line and it is located to enter with superheater steam in the second connecting line connection and corresponding central cooler waste heat boiler
It is provided between mouthful some being opened and closed the valve of the first connecting line.
Further, foregoing a kind of sintering exhaust-heat boiler Low Temperature Steam utilization system, wherein：In every first company
Take on road and positioned between superheater steam inlet in the second connecting line connection and corresponding central cooler waste heat boiler
One is provided with to be opened and closed the valve of the first connecting line.
Further, foregoing a kind of sintering exhaust-heat boiler Low Temperature Steam utilization system, wherein：In every first company
It is provided with if taking on road and being located between the second connecting line connection and corresponding large flue waste heat boiler steam (vapor) outlet
Do to be opened and closed the valve of the first connecting line.
Further, foregoing a kind of sintering exhaust-heat boiler Low Temperature Steam utilization system, wherein：In every first company
Take on road and be located at and be provided with one between the second connecting line connection and corresponding large flue waste heat boiler steam (vapor) outlet
It is individual being opened and closed the valve of the first connecting line.
Further, foregoing a kind of sintering exhaust-heat boiler Low Temperature Steam utilization system, wherein：In the second connecting tube
Some drain valves are provided with road.
Further, foregoing a kind of sintering exhaust-heat boiler Low Temperature Steam utilization system, wherein：In the second connecting tube
Three drain valves and five are provided with road to be opened and closed the valve of the second connecting line.
The implementation of Pass through above-mentioned technical proposal, the beneficial effects of the invention are as follows：By by two central cooler waste heat boilers
Superheater ganged up, it is ensured that when it is any set sintering exhaust-heat boiler in central cooler waste heat boiler break down when, successively may be used
With by low-temperature saturated steam recycling caused by the large flue waste heat boiler in the set sintering exhaust-heat boiler into reaching steam turbine
The superheated steam of inlet temperature, avoids and low-temperature saturated steam is diffused, and not only reduces the waste of the energy, and reduces
Noise pollution during steam releasing, improves operating mode；And average to reclaim 10 tons of saturated vapor per hour, saturation per ton is steamed more
The equivalent recovery sintering complementary energy 2796.33MJ of vapour, substantially increases sintering waste heat organic efficiency.
Brief description of the drawings
Fig. 1 is that a kind of structural principle of sintering exhaust-heat boiler Low Temperature Steam utilization system of the present invention is illustrated
Figure.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of described sintering exhaust-heat boiler Low Temperature Steam utilization system, including two sets of sintering waste heats
Boiler group, i.e.,：First sintering exhaust-heat boiler group and the second sintering exhaust-heat boiler group, it is big that the first sintering exhaust-heat boiler group includes first
The central cooler waste heat boiler 2 of flue-pipe after-heat boiler 1 and first, the first large flue waste heat boiler 1 in the first sintering exhaust-heat boiler group
Steam (vapor) outlet is connected by the first connecting line 5 with the steam inlet of superheater 21 in the first central cooler waste heat boiler 2, and second
Sintering exhaust-heat boiler group includes the second largest central cooler waste heat boiler 4 of flue-pipe after-heat boiler 3 second, in the second sintering exhaust-heat boiler group
The steam (vapor) outlet of second largest flue-pipe after-heat boiler 3 passes through superheater in the first connecting line 51 and the second central cooler waste heat boiler 4
41 steam inlet is connected；First connecting line 5 is connected with the first connecting line 51 by the second connecting line 6,
Be provided with the second connecting line 6 it is some to be opened and closed the first valve 7 of the second connecting line 6, in the present embodiment, the first valve
The quantity of door 7 is five；On the first connecting line 5 and positioned at the connection of the second connecting line 6 and the first central cooler more than
It is provided with heat boiler 2 between the steam inlet of superheater 21 some being opened and closed the second valve 8 of the first connecting line 5, this reality
Apply in example, the quantity of the second valve 8 is one；On the first connecting line 51 and it is located at and the connection of the second connecting line 6
And second be provided between the steam inlet of superheater 41 in central cooler waste heat boiler 4 it is some being opened and closed the first connecting line 51
3rd valve 9, in the present embodiment, the quantity of the 3rd valve 9 is one；In the present embodiment, on the first connecting line 5 and position
It is provided between the connection of the second connecting line 6 and the steam (vapor) outlet of the first large flue waste heat boiler 1 some being opened and closed
4th valve 10 of the first connecting line 5, in the present embodiment, the quantity of the 4th valve 10 is one；In the first connecting line 51
Go up and be located at and be provided with some use between the connection of the second connecting line 6 and the steam (vapor) outlet of second largest flue-pipe after-heat boiler 3
To be opened and closed the 5th valve 11 of the first connecting line 51, in the present embodiment, the quantity of the 5th valve 11 is one, passes through the 4th valve
Door 10 with the 5th valve 11 setting can improve sintering exhaust-heat boiler Low Temperature Steam utilization system operation stability and
Security；In the present embodiment, it is provided with some drain valves 12 on the second connecting line 6, in the present embodiment, drain valve 12
Quantity is three, so can further improve the operation stability and peace of sintering exhaust-heat boiler Low Temperature Steam utilization system
Quan Xing；
The operation principle of the present invention is as follows：
When the equal normal work of two central cooler waste heat boilers, all drain valves 12 for closing on the second connecting line 6 and all
First valve 7, and the second valve 8 and the 4th valve 10 on the first connecting line 5 are opened simultaneously, and the first connecting line 51
On the 3rd valve 9 and the 5th valve 11, now the heat-exchanging water in the first central cooler waste heat boiler 2 is successively through evaporator and overheat
320 DEG C~360 DEG C of superheated steam is produced after the processing of device 21 and supplies steam turbine power generation, while the first large flue waste heat boiler 1 produces
200 DEG C~250 DEG C of saturated vapor overheat in the first central cooler waste heat boiler 2 can be also sent to by the first connecting line 5
Overheated in device 21, the superheated steam that saturated vapor also becomes 320 DEG C~360 DEG C is supplied steam turbine power generation；Second ring simultaneously
Heat-exchanging water in cold waste heat boiler 4 produces 320 DEG C~360 DEG C of superheated steam after evaporator and superheater 41 are handled successively
For steam turbine power generation, while 200 DEG C~250 DEG C of saturated vapor can connect by first caused by second largest flue-pipe after-heat boiler 3
Overheated in the superheater 41 that adapter road 51 is also sent in the second central cooler waste heat boiler 4, saturated vapor is also become 320 DEG C
~360 DEG C of superheated steam supplies steam turbine power generation；
When the first central cooler waste heat boiler 2 breaks down, the second valve 8 for closing on the first connecting line 5, while open the
4th valve 10 on one connecting line 5, the 3rd valve 9 on the first connecting line 51 are connected with the 5th valve 11 and second
All drain valves 12 and all first valves 7 on pipeline 6, now the heat-exchanging water in the second central cooler waste heat boiler 4 pass through successively
Evaporator and superheater 41 produce 320 DEG C~360 DEG C superheated steam after handling supplies steam turbine power generation, while more than the second large flue
200 DEG C~250 DEG C of saturated vapor caused by heat boiler 3 can be sent to the second central cooler waste heat boiler by the first connecting line 51
Overheated in superheater 41 in 4, the superheated steam that saturated vapor becomes 320 DEG C~360 DEG C is supplied steam turbine power generation, simultaneously
200 DEG C~250 DEG C of saturated vapor caused by first large flue waste heat boiler 1 can pass through the first connecting line 5 and the second connection
Overheated in the superheater 41 that pipeline 6 is also sent in the second central cooler waste heat boiler 4, saturated vapor is become 320 DEG C~360
DEG C superheated steam supply steam turbine power generation；
When the second central cooler waste heat boiler 4 breaks down, the 3rd valve 9 on the first connecting line 51 of closing, open simultaneously
The 5th valve 11, the second valve 8 on the first connecting line 5 and the 4th valve 10 and second connect on first connecting line 51
All drain valves 12 and all first valves 7 taken on road 6, now the heat-exchanging water in the first central cooler waste heat boiler 2 is successively
320 DEG C~360 DEG C of superheated steam is produced after evaporator and superheater 21 are handled and supplies steam turbine power generation, while the first large flue
200 DEG C~250 DEG C of saturated vapor caused by waste heat boiler 3 can be sent to the first central cooler waste heat pot by the first connecting line 5
Overheated in superheater 21 in stove 2, the superheated steam that saturated vapor becomes 320 DEG C~360 DEG C is supplied steam turbine power generation, together
When 200 DEG C~250 DEG C of saturated vapor caused by second largest flue-pipe after-heat boiler 3 can pass through the first connecting line 51 and second connect
Overheated in the superheater 21 that is also sent in the first central cooler waste heat boiler 2 of adapter road 6, make saturated vapor become 320 DEG C~
360 DEG C of superheated steam supplies steam turbine power generation.
It is an advantage of the invention that：By the way that the superheater in two central cooler waste heat boilers is ganged up, it is ensured that when any
, successively can be by the opium in the set sintering exhaust-heat boiler when central cooler waste heat boiler in set sintering exhaust-heat boiler breaks down
Low-temperature saturated steam recycling is avoided to low into the superheated steam for reaching turbine inlet temperature caused by road waste heat boiler
Warm saturated vapor diffuses, and not only reduces the waste of the energy, and noise pollution when reducing steam releasing, improves work
Condition；And average to reclaim 10 tons of saturated vapor per hour, the equivalent recovery of saturated vapor per ton sinters complementary energy 2796.33MJ more,
Substantially increase sintering waste heat organic efficiency.
Claims (6)
1. a kind of sintering exhaust-heat boiler Low Temperature Steam utilization system, including two sets of sintering exhaust-heat boiler groups, often more than set sintering
Heat boiler group includes a large flue waste heat boiler and a central cooler waste heat boiler, often covers large flue in sintering exhaust-heat boiler group
The steam (vapor) outlet of the waste heat boiler steam inlet by the first connecting line with superheater in corresponding central cooler waste heat boiler respectively
It is connected, it is characterised in that：Two first connecting lines are connected by the second connecting line, are set on the second connecting line
Have it is some to be opened and closed the valve of the second connecting line, on every first connecting line and positioned at being connected with the second connecting line
It is provided with the place of connecing and corresponding central cooler waste heat boiler between superheater steam inlet some being opened and closed the first connecting line
Valve.
A kind of 2. sintering exhaust-heat boiler Low Temperature Steam utilization system according to claim 1, it is characterised in that：Every
On the connecting line of root first and it is located at and superheater steam in the second connecting line connection and corresponding central cooler waste heat boiler
One is provided between import to be opened and closed the valve of the first connecting line.
A kind of 3. sintering exhaust-heat boiler Low Temperature Steam utilization system according to claim 1 or 2, it is characterised in that：
On every first connecting line and it is located at and the second connecting line connection and corresponding large flue waste heat boiler steam (vapor) outlet
Between be provided with it is some being opened and closed the valve of the first connecting line.
A kind of 4. sintering exhaust-heat boiler Low Temperature Steam utilization system according to claim 3, it is characterised in that：Every
On the connecting line of root first and positioned between the second connecting line connection and corresponding large flue waste heat boiler steam (vapor) outlet
One is provided with to be opened and closed the valve of the first connecting line.
A kind of 5. sintering exhaust-heat boiler Low Temperature Steam utilization system according to claim 1, it is characterised in that：
Some drain valves are provided with two connecting lines.
A kind of 6. sintering exhaust-heat boiler Low Temperature Steam utilization system according to claim 5, it is characterised in that：
Three drain valves and five are provided with two connecting lines to be opened and closed the valve of the second connecting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711019794.6A CN107676763B (en) | 2017-10-27 | 2017-10-27 | Comprehensive utilization system for low-temperature steam of sintering waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711019794.6A CN107676763B (en) | 2017-10-27 | 2017-10-27 | Comprehensive utilization system for low-temperature steam of sintering waste heat boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107676763A true CN107676763A (en) | 2018-02-09 |
| CN107676763B CN107676763B (en) | 2023-11-21 |
Family
ID=61143009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711019794.6A Active CN107676763B (en) | 2017-10-27 | 2017-10-27 | Comprehensive utilization system for low-temperature steam of sintering waste heat boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN107676763B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539218A (en) * | 2019-01-21 | 2019-03-29 | 中冶北方（大连）工程技术有限公司 | It is sintered flue-pipe after-heat boiler and sintering exhaust-heat boiler integral system |
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| JPH07243305A (en) * | 1994-03-03 | 1995-09-19 | Kubota Corp | Waste heat recovery combined plant for garbage burning incinerator |
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-
2017
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| CN109539218A (en) * | 2019-01-21 | 2019-03-29 | 中冶北方（大连）工程技术有限公司 | It is sintered flue-pipe after-heat boiler and sintering exhaust-heat boiler integral system |
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| Publication number | Publication date |
|---|---|
| CN107676763B (en) | 2023-11-21 |
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