CN107723396A - A kind of blast furnace slag flushing water circulation system - Google Patents
A kind of blast furnace slag flushing water circulation system Download PDFInfo
- Publication number
- CN107723396A CN107723396A CN201710918095.9A CN201710918095A CN107723396A CN 107723396 A CN107723396 A CN 107723396A CN 201710918095 A CN201710918095 A CN 201710918095A CN 107723396 A CN107723396 A CN 107723396A
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- China
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- water
- circulation system
- slag flushing
- water circulation
- tower
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
Abstract
The present invention discloses a kind of blast furnace slag flushing water circulation system, and the slag flushing water circulation system includes：Cinder-flushing groove, granulated slag groove, sedimentation basin and the main sewer being sequentially communicated；The main sewer connects with the water inlet of the hydraulic turbine；The delivery port of the hydraulic turbine is connected with circulating water main, and the hydraulic turbine is connected with driving engine；The water inlet of the circulating water main connection circulating water pool；The circulating water pool is provided with two delivery ports, and described two delivery ports are respectively communicated with the first branch pipe and the second branch pipe；First branch pipe connects the first water inlet of cooling tower by the first cooling tower water pump；Second branch pipe is communicated to the second water inlet of the cooling tower, the air outlet slit connection draft chamber of the dehumidifying tower by warm water pump through regenerator, dehumidifying tower and the second cooling tower water pump successively；The delivery port of the cooling tower is communicated to vibration means for main pipe for supplying water by cooling water pump；The slag flushing water circulation system realizes the recycling of complementary energy and waste heat, saves the energy.
Description
Technical field
The present invention relates to technical field of blast furnace process, and in particular to a kind of blast furnace slag flushing water circulation system.
Background technology
At present, blast furnace smelting process, waste heat, the recovery utilization rate of complementary energy are at a fairly low.Waste heat is divided into high-temperature residual heat and low temperature
Waste heat, wherein, high-temperature residual heat is easier to reclaim, and is largely recycled in energy-saving technological transformation；But total waste heat
35% low temperature exhaust heat recovery exist missing, such as the waste heat of blast furnace slag quenching water.
In blast furnace smelting process, caused slag temperature is about 1000 DEG C, and at present, conventional processing method is：By this stove
The high-velocity flow chilling that slag is provided in dreg flushing tank by slag flushing pump is washed into grain slag and is granulated, so that production cement is used.This mistake
Hot water of the big amount temperature at 80~95 DEG C can be produced in journey.Generally, in order to ensure washing slag water recycle effect, it is necessary to will
This part washing slag water introduces air cooling tower after precipitation filters, and flushing cinder is circulated again after cooling to less than 50 DEG C.So allow for rushing
Pulp water heat is lost in air cooling tower, causes the waste of heat energy, and the potential energy and kinetic energy to washing slag water also utilize without effective.
The content of the invention
In view of this, this application provides a kind of blast furnace slag flushing water circulation system, the slag flushing water circulation system to realize
The recycling of complementary energy and waste heat, save the energy.
To solve above technical problem, technical scheme provided by the invention is a kind of blast furnace slag flushing water circulation system, described
Slag flushing water circulation system includes：Cinder-flushing groove, granulated slag groove, sedimentation basin and the main sewer being sequentially communicated；The main sewer and water
The water inlet connection of turbine；The delivery port of the hydraulic turbine connects with circulating water main, and the hydraulic turbine connects with driving engine
Connect；The water inlet of the circulating water main connection circulating water pool；The circulating water pool is provided with two delivery ports, described two water outlets
Mouth is respectively communicated with the first branch pipe and the second branch pipe；First branch pipe enters by the first of the first cooling tower water pump connection cooling tower
The mouth of a river；Second branch pipe is communicated to the cooling through regenerator, dehumidifying tower and the second cooling tower water pump successively by warm water pump
Second water inlet of tower, the air outlet slit connection draft chamber of the dehumidifying tower；The delivery port of the cooling tower passes through cooling water pump
It is communicated to vibration means for main pipe for supplying water.
Preferably, flow regulator is set on the vibration means for main pipe for supplying water.
Preferably, between the main sewer and the hydraulic turbine, the circulating water pool and the first cooling tower water pump
Between, between the circulating water pool and the warm water pump, it is between the dehumidifying tower and the second cooling tower water pump and described
Valve is equipped with pipeline between cooling water pump and the vibration means for main pipe for supplying water.
Preferably, the slag flushing water circulation system also includes：Electric control gear；The valve is magnetic valve, the valve
Electrically connected with the electric control gear.
Preferably, the slag flushing water circulation system also includes：Salting liquid case, the salting liquid case is respectively to the regenerator
Salting liquid is passed through with the spray thrower of the dehumidifying tower, and receives the salting liquid from the regenerator and the dehumidifying tower backflow.
Preferably, the mass concentration of the salting liquid is 35~60%.
Preferably, the salting liquid is calcium chloride solution.
Preferably, refrigeration unit is set between the air outlet slit of the dehumidifying tower and the draft chamber.
Preferably, the refrigeration unit connects the engine.
Preferably, damp-heat air caused by the refrigeration unit is passed through the regenerator.
Preferably, the slag outlet connection cinder-flushing groove of blast furnace.
Compared with prior art, its detailed description is as follows by the application：
During slag flushing water circulation system normal work provided by the invention, valve is open-minded, and blast furnace slag passes through after being come out from blast furnace
Cinder-flushing groove enters granulating pit, is taken away in granulating pit middle peasant's blast furnace slag by dragveyer, and afterwards, high temperature washing slag water purifies into sedimentation basin
By into the hydraulic turbine, avoid flushing cinder impurities in water from blocking pipeline, influence circulatory system work；Flushing cinder water turbine, which drives, to generate electricity
Machine, potential energy and kinetic energy are converted into electric energy, export to electric power system, meanwhile, generator provides electric energy for refrigeration unit, realizes recovery
The complementary energy of blast furnace cooling technique, obvious energy conservation, there is obvious economic benefit.
Tie point and the second branch road can be separately controlled by valve for slag flushing water circulation system provided by the invention, a side
Face, convenient maintenance；On the other hand, too low UTILIZATION OF VESIDUAL HEAT IN can not be realized without carrying out exhaust heat of slag flushing water utilization or washing slag water taste
When, can washing slag water be directly entered cooling tower cooler；When washing slag water carries out UTILIZATION OF VESIDUAL HEAT IN, by between circulating water pool and warm water pump
Valve controlling on second branch road, washing slag water enters regenerator and dehumidifying tower, through the salt quasi-molecule in salting liquid, hydrone concentration
Reduce, the hydrone of solution surface is reduced, and the hydrone in air is more than the sub- pressure of salting liquid surface moisture, the moisture in air
Son thinks that salting liquid moves, and realization is air-dried, cooled by refrigeration unit, and cold dry air enters draft chamber, realizes waste heat
Recycle, save the energy.
Salting liquid case of the present invention is passed through salting liquid to the spray thrower of regenerator and dehumidifying tower respectively, and receive from regenerator and
Dehumidify the salting liquid that tower flows back, and realizes the recycling of salting liquid, saves the energy.
The present invention provides and flow regulator is set on vibration means for main pipe for supplying water, convenient control, avoids flow excessive, wastes the energy.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of blast furnace slag flushing water circulation system provided by the invention.
Embodiment
In order that those skilled in the art more fully understands technical scheme, with reference to specific embodiment pair
The present invention is described in further detail.
As shown in figure 1, the invention provides a kind of blast furnace slag flushing water circulation system, the slag flushing water circulation system includes：
Cinder-flushing groove 1, granulated slag groove 2, sedimentation basin 3 and the main sewer 4 being sequentially communicated；The water inlet of the main sewer 4 and the hydraulic turbine 5 connects
It is logical；The delivery port of the hydraulic turbine 5 connects with circulating water main 6, and the hydraulic turbine 5 is connected with engine 7；The circulation
Supply mains 6 connects the water inlet of circulating water pool 8；The circulating water pool 8 is provided with two delivery ports, and described two delivery ports connect respectively
Logical first branch pipe 9 and the second branch pipe 10；First branch pipe 9 enters by the first of the first cooling tower water pump 11 connection cooling tower 12
The mouth of a river；Second branch pipe 10 is connected through regenerator 13, dehumidifying tower 14 with the second cooling tower water pump 18 successively by warm water pump 24
To the second water inlet of the cooling tower 12, the air outlet slit connection draft chamber 15 of the dehumidifying tower 14；The cooling tower 12
Delivery port is communicated to vibration means for main pipe for supplying water 17 by cooling water pump 16.
In a specific embodiment of the invention, flow regulator 19 is set on the vibration means for main pipe for supplying water 17.The draining is total
Between pipe 4 and the hydraulic turbine 5, between the circulating water pool 8 and the first cooling tower water pump 11, the circulating water pool 8 with
Between the warm water pump 25, it is described dehumidifying tower 14 and the second cooling tower water pump 18 between and the cooling water pump 16 and institute
State and valve 20 is equipped with the pipeline between vibration means for main pipe for supplying water 17.The slag flushing water circulation system also includes：Electric control gear 21；It is described
Valve 20 is magnetic valve, and the valve 20 electrically connects with the electric control gear 21.The slag flushing water circulation system also includes：
Salting liquid case 22, the salting liquid case 22 are passed through salting liquid to the spray thrower of the regenerator 13 and the dehumidifying tower 14 respectively,
And receive the salting liquid to be flowed back from the regenerator 13 and the dehumidifying tower 14.The mass concentration of the salting liquid be 35~
60%.The salting liquid is calcium chloride solution.Refrigeration is set between the air outlet slit of the dehumidifying tower 14 and the draft chamber 15
Unit 23.The refrigeration unit 23 connects the engine 7.Damp-heat air caused by the refrigeration unit 23 is passed through the regeneration
Tower 13.The slag outlet connection cinder-flushing groove 1 of blast furnace 25.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of blast furnace slag flushing water circulation system, it is characterised in that the slag flushing water circulation system includes：The flushing cinder being sequentially communicated
Groove, granulated slag groove, sedimentation basin and main sewer；The main sewer connects with the water inlet of the hydraulic turbine；The water outlet of the hydraulic turbine
Mouth is connected with circulating water main, and the hydraulic turbine is connected with driving engine；The circulating water main connection circulating water pool enters
The mouth of a river；The circulating water pool is provided with two delivery ports, and described two delivery ports are respectively communicated with the first branch pipe and the second branch pipe；It is described
First branch pipe connects the first water inlet of cooling tower by the first cooling tower water pump；Second branch pipe is passed through successively by warm water pump
Regenerator, dehumidifying tower and the second cooling tower water pump are communicated to the second water inlet of the cooling tower, and the air of the dehumidifying tower goes out
Mouth connection draft chamber；The delivery port of the cooling tower is communicated to vibration means for main pipe for supplying water by cooling water pump.
2. slag flushing water circulation system according to claim 1, it is characterised in that Flow-rate adjustment is set on the vibration means for main pipe for supplying water
Device.
3. slag flushing water circulation system according to claim 1, it is characterised in that the main sewer and the hydraulic turbine it
Between, between the circulating water pool and the first cooling tower water pump, between the circulating water pool and the warm water pump, the dehumidifying
Valve is equipped between tower and the second cooling tower water pump and on the pipeline between the cooling water pump and the vibration means for main pipe for supplying water
Door.
4. slag flushing water circulation system according to claim 3, it is characterised in that the slag flushing water circulation system also includes：
Electric control gear；The valve is magnetic valve, and the valve electrically connects with the electric control gear.
5. slag flushing water circulation system according to claim 1, it is characterised in that the slag flushing water circulation system also includes：
Salting liquid case, the salting liquid case are passed through salting liquid to the spray thrower of the regenerator and the dehumidifying tower respectively, and receive from
The regenerator and the salting liquid of the dehumidifying tower backflow.
6. slag flushing water circulation system according to claim 5, it is characterised in that the mass concentration of the salting liquid be 35~
60%.
7. slag flushing water circulation system according to claim 5, it is characterised in that the salting liquid is calcium chloride solution.
8. slag flushing water circulation system according to claim 1, it is characterised in that the dehumidifying air outlet slit of tower and described
Refrigeration unit is set between draft chamber.
9. slag flushing water circulation system according to claim 8, it is characterised in that start described in the refrigeration unit connection
Machine.
10. slag flushing water circulation system according to claim 8, it is characterised in that damp and hot sky caused by the refrigeration unit
Gas is passed through the regenerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710918095.9A CN107723396A (en) | 2017-09-29 | 2017-09-29 | A kind of blast furnace slag flushing water circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710918095.9A CN107723396A (en) | 2017-09-29 | 2017-09-29 | A kind of blast furnace slag flushing water circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107723396A true CN107723396A (en) | 2018-02-23 |
Family
ID=61209600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710918095.9A Pending CN107723396A (en) | 2017-09-29 | 2017-09-29 | A kind of blast furnace slag flushing water circulation system |
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| Country | Link |
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| CN (1) | CN107723396A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594771A (en) * | 2020-12-10 | 2021-04-02 | 李丹 | Energy-saving and environment-friendly domestic hot water treatment device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962879A (en) * | 2006-12-08 | 2007-05-16 | 邢台钢铁有限责任公司 | Treatment system for blast-furnace slag |
| CN101798607A (en) * | 2010-03-11 | 2010-08-11 | 无锡市东方环境工程设计研究所有限公司 | Waste heat recovery system of blast furnace slag quenching water |
| CN104279788A (en) * | 2013-07-08 | 2015-01-14 | 北京华航盛世能源技术有限公司 | Process system capable of utilizing waste heat and complementary energy of cooling water of blast furnace |
| CN206069908U (en) * | 2016-08-31 | 2017-04-05 | 云南德胜钢铁有限公司 | A kind of blast furnace ironmaking water circulation system |
-
2017
- 2017-09-29 CN CN201710918095.9A patent/CN107723396A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962879A (en) * | 2006-12-08 | 2007-05-16 | 邢台钢铁有限责任公司 | Treatment system for blast-furnace slag |
| CN101798607A (en) * | 2010-03-11 | 2010-08-11 | 无锡市东方环境工程设计研究所有限公司 | Waste heat recovery system of blast furnace slag quenching water |
| CN104279788A (en) * | 2013-07-08 | 2015-01-14 | 北京华航盛世能源技术有限公司 | Process system capable of utilizing waste heat and complementary energy of cooling water of blast furnace |
| CN206069908U (en) * | 2016-08-31 | 2017-04-05 | 云南德胜钢铁有限公司 | A kind of blast furnace ironmaking water circulation system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594771A (en) * | 2020-12-10 | 2021-04-02 | 李丹 | Energy-saving and environment-friendly domestic hot water treatment device |
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| PB01 | Publication | ||
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Application publication date: 20180223 |