CN206593491U - A kind of mineral heating furnace flue waste heat recovery generating system - Google Patents
A kind of mineral heating furnace flue waste heat recovery generating system Download PDFInfo
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- CN206593491U CN206593491U CN201720192399.7U CN201720192399U CN206593491U CN 206593491 U CN206593491 U CN 206593491U CN 201720192399 U CN201720192399 U CN 201720192399U CN 206593491 U CN206593491 U CN 206593491U
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- Prior art keywords
- waste heat
- drum
- steam
- feedwater
- heated
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- 239000002918 waste heat Substances 0.000 title claims abstract description 47
- 238000010438 heat treatment Methods 0.000 title claims abstract description 26
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 21
- 239000011707 mineral Substances 0.000 title claims abstract description 21
- 238000011084 recovery Methods 0.000 title claims abstract description 14
- 238000001816 cooling Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 11
- 239000003546 flue gas Substances 0.000 abstract description 11
- 239000003517 fume Substances 0.000 abstract description 11
- 230000005611 electricity Effects 0.000 abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model is related to flue gas waste heat recovery power field, more particularly to a kind of mineral heating furnace flue waste heat recovery generating system, it is heated to be steam using connecting the evaporated flue of high temperature section exhaust duct feedwater, and high temperature section exhaust duct has enough heat energy that feedwater is heated to be steam, then the steam being delivered to again can provide heat relatively small number of waste heat boiler, allow waste heat boiler that the steam is heated to be supply generator group after superheated steam again to generate electricity, directly allow waste heat boiler that feedwater is heated to be steam so as to avoid, improve the utilization rate of low-temperature zone waste heat boiler heat, it is sufficiently used the fume afterheat of low-temperature zone, wasted so as to reduce the substantial amounts of radiating discharge of fume afterheat resource.
Description
Technical field
The utility model is related to flue gas waste heat recovery power field, more particularly to a kind of mineral heating furnace flue exhaust heat recovery power generation
System.
Background technology
Metallurgy industry is substantially high energy consumption industry, in the case of today's society energy scarcity, can reduce energy consumption, subtract
Few environmental pollution is the direction of iron and steel metallurgical industry development, not only improves the economic benefit of enterprise itself and can also increase social effect
Benefit.Metallurgical industry mineral hot furnace discharges substantial amounts of high-temperature flue gas while consuming mass energy, not only wastes the energy, also pollutes ring
Border.
At present, although domestic existing iron and steel metallurgical industry mineral heating furnace flue residual neat recovering system also has recycling high temperature
The fume afterheat of section and low-temperature zone, but be usually to have two feedwater pipings, it is respectively feedwater injection connection high temperature section air draft
The evaporated flue of pipe and the waste heat boiler of low-temperature zone, feedwater evaporated flue and waste heat boiler are heated become steam after directly feed
Generating set generates electricity.Because waste heat boiler is the fume afterheat using low-temperature zone, and feedwater is heated to be gaseous steaming from liquid
Vapour needs substantial amounts of heat energy, and this can cause the DeGrain that waste heat boiler is heated, so as to cause fume afterheat utilization ratio ratio
Relatively low, the low-temperature zone fume afterheat of mineral heating furnace flue discharge is not utilized well.
The content of the invention
The purpose of this utility model is to provide a kind of higher mineral heating furnace flue waste heat of fume emission low-temperature zone utilization rate and returned
Receive and dispatch electric system.
The purpose of this utility model is realized by following technical scheme：
A kind of mineral heating furnace flue waste heat recovery generating system, including generating set, the mineral hot furnace and generating set it
Between be connected with high temperature section exhaust duct, low-temperature zone exhaust duct, cyclone separator and waste heat boiler in turn, high temperature section exhaust duct is connected with
Feedwater is heated to be the evaporated flue of steam, the output end of evaporated flue connects the input of waste heat boiler, waste heat boiler it is defeated
Go out end connection generating set.
Wherein, the first drum of connection evaporated flue is included, the input connection of the first drum provides the pipeline of feedwater, the
The output end of one drum connects the input of waste heat boiler.
Wherein, the convection heating surface device of connection low-temperature zone exhaust duct is included, its described feedwater is heated to be after steam
Into the first drum.
Wherein, the feedwater enters convection heating surface device through the first drum.
Wherein, the second drum of connection waste heat boiler is included, the input of the second drum connects the output end of the first drum,
The output end connection generating set of second drum, the steam is heated to be superheated steam again through the second drum into waste heat boiler
After deliver to generating set.
Wherein, it is additionally included in the condensation being sequentially connected between the output end of generating set and the feedwater input of the first drum
Device, condensate pump, oxygen-eliminating device, feed pump, the one outlet of condenser are connected with cooling tower, and cooling tower is connected by water circulating pump
One import of condenser.
The beneficial effects of the utility model are：Because the feedwater of certain mass is heated to be gaseous steam ratio handle from liquid
The steam of phase homogenous quantities is heated to be the more heat energy of superheated steam needs, so the utility model, which is utilized, connects high temperature section exhaust duct
Evaporated flue feedwater is heated to be steam, and high temperature section exhaust duct has enough heat energy that feedwater is heated to be steam, Ran Houzai
The steam, which is delivered to, can provide heat relatively small number of waste heat boiler, allow waste heat boiler that the steam is heated to be superheated steam again
Supply generator group generates electricity afterwards, directly allows waste heat boiler that feedwater is heated to be steam so as to avoid, improves low-temperature zone waste heat
The utilization rate of boiler heat, is sufficiently used the fume afterheat of low-temperature zone, so as to reduce, fume afterheat resource is substantial amounts of to be dissipated
Hot driving is wasted.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description：
Fig. 1 is the electricity generation system organigram in the utility model embodiment.
Include in Fig. 1：1 --- --- high temperature section exhaust duct, 3 --- low-temperature zone exhaust duct, 4 --- whirlwind of mineral hot furnace, 2
--- --- --- --- chimney, 9 --- the evaporated flue, 10 --- waste heat of air-introduced machine, 8 of deduster, 7 of dry kiln, 6 of separator, 5
Boiler, 11 --- the second drum, 12 --- steam turbine, 13 --- generator, 14 --- condenser, 15 --- cooling tower,
16 --- water circulating pump, 17 --- condensate pump, 18 --- oxygen-eliminating device, 19 --- feed pump, 20 --- the first drum, 21 ---
Convection heating surface device.
Embodiment
As shown in figure 1, a kind of mineral heating furnace flue waste heat recovery generating system includes generating set, in mineral hot furnace 1 with generating electricity
It is connected with high temperature section exhaust duct 2, low-temperature zone exhaust duct 3, cyclone separator 4 and waste heat boiler 10 between unit in turn, wherein, it is high
The pipe of temperature section air draft 2 is connected with the evaporated flue 9 for being heated to be steam that feeds water, and low-temperature zone exhaust duct 3, which is connected with, is heated to be feedwater
The convection heating surface device 21 of steam, the port of export of cyclone separator 4 is also connected with dry kiln 5, deduster 6, air-introduced machine in turn
7th, chimney 8；Generating set includes steam turbine 12 and generator 13.In order to better profit from the low-temperature flue gas of low-temperature zone exhaust duct 3
Heat, convection heating surface device 21 is connected with low-temperature zone exhaust duct 3.The high-temperature flue gas that mineral hot furnace 1 is produced is arranged into high temperature section
Airduct 2, high-temperature flue gas becomes low-temperature flue gas after the utilization of evaporated flue 9, and low-temperature flue gas is again introduced into convection heating surface device
21 are heated, and the flue gas discharged by convection heating surface device 21 sequentially enters cyclone separator 4, dry kiln 5, deduster 6
Dedusting, the flue gas after dust separation is discharged by air-introduced machine 7 from chimney 8.A gas bypass is drawn after cyclone separator 4,
Waste heat boiler 10 is passed to, low-temperature flue gas enters deduster 6 after being utilized through waste heat boiler 10.
Feedwater enters the first drum 20 by feed pump 19, then respectively enters the He of evaporated flue 9 by the first drum 20
Convection heating surface device 21 carries out heating and becomes steam, and the steam returns to the first drum 20, forms Natural Circulation；First drum 20
In steam through the second drum 11 enter waste heat boiler 10 in superheater be heated as superheated steam, then superheated steam enter
Steam turbine 12, the pushing generator 13 that is heated of steam turbine 12 generates electricity.Steam after being done work to steam turbine 12 enters condenser 14, condensing
The one outlet of device 14 is connected with cooling tower 14, and cooling tower 14 connects an import of condenser 14 by water circulating pump 16,
Condenser 14 carries out circulation with the cooling water of cooling tower 15 and exchanges cooling, and the steam after cooling becomes feedwater again, then by solidifying
Bear water pump 17 and flow to oxygen-eliminating device 18, the feedwater of deoxygenation is inputted first by feed pump 19 again after the deoxygenation of oxygen-eliminating device 18
Drum 20, so as to complete entirely to close water circulation system, takes full advantage of water resource.
The utility model is heated to be steam using connecting the evaporated flue 9 of high temperature section exhaust duct 2 feedwater, and high temperature section is arranged
Airduct 2 has enough heat energy that feedwater is heated to be steam, and then the steam, which is delivered to, again can provide heat relatively small number of waste heat
Boiler 10, allowing waste heat boiler 10, the steam is heated to be supply generator group after superheated steam again（That is steam turbine 12 and generator
13）Generate electricity, directly allow waste heat boiler 10 that feedwater is heated to be steam so as to avoid, improve the heat of low-temperature zone waste heat boiler 10
Utilization rate, be sufficiently used the fume afterheat of low-temperature zone, thus reduce fume afterheat resource it is substantial amounts of radiating discharge wave
Take.
Claims (6)
1. a kind of mineral heating furnace flue waste heat recovery generating system, including generating set, between the mineral hot furnace and generating set
It is connected with high temperature section exhaust duct, low-temperature zone exhaust duct, cyclone separator and waste heat boiler in turn, high temperature section exhaust duct is connected with handle
Feedwater is heated to be the evaporated flue of steam, it is characterised in that：The output end of evaporated flue connects the input of waste heat boiler, waste heat
The output end connection generating set of boiler.
2. a kind of mineral heating furnace flue waste heat recovery generating system according to claim 1, it is characterised in that：Including connection vapour
Change the first drum of flue, the input connection of the first drum provides the pipeline of feedwater, the output end connection waste heat of the first drum
The input of boiler.
3. a kind of mineral heating furnace flue waste heat recovery generating system according to claim 2, it is characterised in that：Also include connection
The convection heating surface device of low-temperature zone exhaust duct, its described feedwater, which is heated to be after steam, enters the first drum.
4. a kind of mineral heating furnace flue waste heat recovery generating system according to claim 3, it is characterised in that：The feedwater warp
First drum enters convection heating surface device.
5. a kind of mineral heating furnace flue waste heat recovery generating system according to any one of claim 2 to 4, it is characterised in that：
Include the second drum of connection waste heat boiler, the input of the second drum connects the output end of the first drum, the second drum it is defeated
Go out end connection generating set, the steam delivers to generator after being heated to be superheated steam again into waste heat boiler through the second drum
Group.
6. a kind of mineral heating furnace flue waste heat recovery generating system according to claim 1, it is characterised in that：It is additionally included in hair
The condenser that is sequentially connected between the output end of group of motors and the feedwater input of the first drum, condensate pump, oxygen-eliminating device, feedwater
Pump, the one outlet of condenser is connected with cooling tower, and cooling tower connects an import of condenser by water circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720192399.7U CN206593491U (en) | 2017-03-01 | 2017-03-01 | A kind of mineral heating furnace flue waste heat recovery generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720192399.7U CN206593491U (en) | 2017-03-01 | 2017-03-01 | A kind of mineral heating furnace flue waste heat recovery generating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206593491U true CN206593491U (en) | 2017-10-27 |
Family
ID=60126791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720192399.7U Active CN206593491U (en) | 2017-03-01 | 2017-03-01 | A kind of mineral heating furnace flue waste heat recovery generating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206593491U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761273A (en) * | 2019-01-29 | 2019-05-17 | 北京拓首能源科技股份有限公司 | A kind of oxygen heating furnace |
| CN112033171A (en) * | 2020-09-17 | 2020-12-04 | 四川陆亨能源科技有限公司 | A kind of submerged thermal flue gas waste heat power generation system and power generation method |
-
2017
- 2017-03-01 CN CN201720192399.7U patent/CN206593491U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761273A (en) * | 2019-01-29 | 2019-05-17 | 北京拓首能源科技股份有限公司 | A kind of oxygen heating furnace |
| CN112033171A (en) * | 2020-09-17 | 2020-12-04 | 四川陆亨能源科技有限公司 | A kind of submerged thermal flue gas waste heat power generation system and power generation method |
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