CN107043834B - A kind of blast-furnace slag heat recovery apparatus of heat recovery module and its composition - Google Patents
A kind of blast-furnace slag heat recovery apparatus of heat recovery module and its composition Download PDFInfo
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- CN107043834B CN107043834B CN201710128495.XA CN201710128495A CN107043834B CN 107043834 B CN107043834 B CN 107043834B CN 201710128495 A CN201710128495 A CN 201710128495A CN 107043834 B CN107043834 B CN 107043834B
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- Prior art keywords
- heat recovery
- heat
- recovery module
- water quenching
- quenching chamber
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Classifications
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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
Abstract
The invention discloses a kind of heat recovery module and its blast-furnace slag heat recovery apparatuses of composition.Heat recovery module includes helical feed heat-exchanger rig, water quenching chamber is provided with above the helical feed heat-exchanger rig, clinker import and superheated steam outlet are provided with above the water quenching chamber, and the water quenching chamber bottom and helical feed heat-exchanger rig inlet communication, the helical feed heat-exchanger rig is connect with power device, is additionally provided with spray equipment in the water quenching chamber.The clinker of collection can be passed through the heat recovery module by the present invention, medium and clinker energy in heat recovery module can exchange, the medium for absorbing energy can drive other executing agencies, and cooling clinker can be expelled directly out, achieve the purpose that energy-saving, reduction production cost, the heat recovery rate of the device can reach 70% or more.
Description
Technical field
The present invention relates to heat recovery technology fields, more specifically, in particular to a kind of heat recovery module and its composition
Slag heat recovery device.
Background technique
Current international and domestic iron and steel enterprise finds a kind of efficient heat recovery method not yet during blast furnace water quenching.State
Interior iron and steel enterprise is all using wet process water granulated slag.Main technique has OCP method, RASA method, INBA method, TYNA method and MTC method.This
A little processes are all had no idea clinker recuperation of heat.Hot 130 kilocalories/kilogram of clinker enthalpy, 1 ton of iron of every refining about generate 450 public affairs
Jin clinker, if calculated by 800,000,000 tons of annual outputs, recyclable heat is equivalent to the heat of 22,600,000 tons of standard coals every year, about
It is equivalent to 20,000,000,000 yuan.
Summary of the invention
The first object of the present invention is to provide a kind of heat recovery module, aobvious when which can make full use of warm sludge to discharge
Heat is exchanged by heat, and warm sludge is concentrated and is exchanged heat, realizes the recycling of heat, simple process, it is at low cost, be effectively utilized waste heat
Resource, the slag after low-temperature treatment can also carry out the recycling and reusing of iron.
The second object of the present invention provides a kind of slag heat recovery device formed according to above-mentioned heat recovery module in rain.
In order to reach the first object of the present invention, The technical solution adopted by the invention is as follows:
A kind of heat recovery module, including helical feed heat-exchanger rig, the helical feed heat-exchanger rig top are provided with water
It quenches room, clinker import and superheated steam outlet is provided with above the water quenching chamber, and the water quenching chamber bottom is changed with helical feed
Thermal inlet communication, the helical feed heat-exchanger rig are connect with power device, and spray dress is additionally provided in the water quenching chamber
It sets.
Further, the water quenching chamber bottom is also communicated with tapping pipe, and the tapping pipe is connected to pond, and the pond is logical
Water pump is crossed to be connected to spray equipment.
Further, helical feed heat-exchanger rig inner cavity central bottom is connected to by drain pipe with pond.
Further, also safe overflow valve on the water quenching chamber outer wall.
Further, the water quenching chamber section is triangle, and the water quenching chamber bottom is provided with the first inclined-plane and second tiltedly
Face offers the mesh with the helical feed heat-exchanger rig inlet communication, the clinker import setting on second inclined-plane
Right above the first inclined-plane, the superheated steam outlet is arranged right above the second inclined-plane, and the spray equipment is arranged first
Above inclined-plane top, first inclined-plane lower part is connected to tapping pipe.
In order to realize the second object of the present invention, The technical solution adopted by the invention is as follows:
A kind of slag heat recovery device, including multiple above-mentioned heat recovery modules, multiple heat recovery modules are sequentially connected
It is also connect afterwards with grinding device, the steam of multiple heat recovery module recycling step temperatures and pressure.
Further, there are three heat recovery module settings, respectively high pressure heat recovery module, middle pressure heat recovery module
With low pressure heat recovery module.
Further, high pressure heat recovery module front end is also equipped with dismountable temperature regulation section, the temperature tune
Clinker is cooled to 1100 DEG C or less by section portion.
Further, the temperature regulation section includes cooling shell, medium inlet pipe, medium outlet pipe, in the cooling shell
The slag input chamber being connected to high pressure heat recovery module is offered, a circle heat exchange chamber is offered in the shell around the slag input chamber,
The medium inlet pipe and medium outlet pipe are symmetrically installed on cooling shell two sides, and are connected to heat exchange chamber.
Further, the medium in the high pressure heat recovery module is fused salt.
Compared with the prior art, the advantages of the present invention are as follows: by the way that water quenching is arranged in the top of helical feed heat-exchanger rig
Room, spray equipment in water quenching chamber by 1400 degree or so of furnace slag granulating, by steam, glass phase clinker and moisture in water quenching chamber
From clinker is sufficiently agitated in helical feed heat-exchanger rig, is dried under self heat effect after certain stroke
Output.By the device, the clinker of collection can be passed through to the heat recovery module, medium and clinker energy in heat recovery module
It can exchange, the medium for absorbing energy can drive other executing agencies, and cooling clinker can be expelled directly out, and reach energy conservation
Consumption reduction, the purpose for reducing production cost, the heat recovery rate of the device can reach 70% or more.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of heat recovery module of the present invention.
Fig. 2 is the structural schematic diagram of slag heat recovery device of the present invention.
Fig. 3 is the top view cross section view of temperature regulation section in the present invention.
Description of symbols: 1, water quenching chamber, 2, helical feed heat-exchanger rig, 3, power device, 4, spray equipment, 5, clinker
Import, 6, superheated steam outlet, 7, superheated steam heat exchange module, 8, tapping pipe, 9, pond, 10, water pump, 11, circulating water pipe,
12, drain pipe, 13, safe overflow valve, the 14, first inclined-plane, the 15, second inclined-plane, 100, heat recovery module, 110, high pressure recuperation of heat
Module, 120, middle pressure heat recovery module, 130, low pressure heat recovery module, 200, grinding device, 300, temperature regulation section, 301, drop
Warm shell, 302, medium inlet pipe, 303, medium outlet pipe, 304, heat exchange chamber, 305, slag input chamber.
Specific embodiment
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in fig.1, the present invention provides a kind of heat recovery module, including helical feed heat-exchanger rig 2, helical feed is changed
It is provided with water quenching chamber 1 above thermal 2, clinker import 5 and superheated steam outlet 6, and water quenching chamber 1 are provided with above water quenching chamber 1
Bottom and 2 inlet communication of helical feed heat-exchanger rig, helical feed heat-exchanger rig 2 are connect with power device 3, in water quenching chamber 1 also
It is provided with spray equipment 4, spray equipment 4 is connected to circulating water pipe 11.By the way that water is arranged in the top of helical feed heat-exchanger rig 2
It quenches room 1, by spray equipment 4 in water quenching chamber 1 by 1400 degree or so of furnace slag granulating, by steam, glass phase furnace in water quenching chamber 1
Slag and water separation, clinker are sufficiently agitated in helical feed heat-exchanger rig 2, are acted on after certain stroke in self heat
It is lower to be exported by dry.By the device, can by the clinker of collection by the heat recovery module, medium in heat recovery module and
Clinker energy can exchange, and the medium for absorbing energy can drive other executing agencies, and cooling clinker can be expelled directly out,
Achieve the purpose that energy-saving, reduction production cost, the heat recovery rate of the device can reach 70% or more.
In the present embodiment, 1 bottom of water quenching chamber is also communicated with tapping pipe 8, and tapping pipe 8 is connected to pond 9, and pond 9 passes through
Water pump 10 is connected to spray equipment 4, and spray equipment 4 is arranged in water quenching chamber 1.It can will be more than in water quenching chamber 1 by tapping pipe 8
Water is collected, and is then flowed into pond along tapping pipe 8, and the remaining water of collection is then sprayed furnace in being pumped into water quenching chamber using water pump 10
Slag realizes the utilization again of Yu Shui.
The spray equipment 11 uses multiple nozzles, and the lower end two sides of clinker import 5 are equipped with multiple nozzles.
Preferably, 2 inner cavity central bottom of helical feed heat-exchanger rig is connected to by drain pipe 12 with pond 9.It can be into one
Remaining water in step gathering screw delivery heat transfer device 2 on clinker re-uses again.Also safe overflow valve 13 on 1 outer wall of water quenching chamber.
It is excessive to prevent the vapor pressure in water quenching chamber 1.
1 section of water quenching chamber is triangle, and 1 bottom of water quenching chamber is provided with the first inclined-plane 14 and the second inclined-plane 15, the second inclined-plane
It offers on 15 and (plays a role in filtering, that is, filter out the clinker of bulk) with the mesh of 2 inlet communication of helical feed heat-exchanger rig,
The setting of clinker import 5 is right above the first inclined-plane 14, and 6 setting of superheated steam outlet is right above the second inclined-plane 15, spray equipment 4
It is arranged above 14 top of the first inclined-plane, 14 lower part of the first inclined-plane is connected to tapping pipe 8.
The steam that spray equipment 4 and the second water spout 11 eject, steam are touched first into the clinker in water quenching chamber 1
Steam is formed after heat absorption, clinker cooling, steam is overflowed from superheated steam outlet 6, and unvaporized remaining water is along the first inclined-plane 14
Pond 9 is flowed into tapping pipe 8, while the clinker after cooling slides onto 14 surface of the second inclined-plane, falls into helical feed heat exchange dress
It sets in 2, spiral transferring returns thermal 11-2 and clinker heat is given water generation high, medium and low voltage steam or heat exchange to other media, most
After export.It is water stain that part can be brought when clinker is in entrance helical feed heat-exchanger rig 2 into, it is water stain in helical feed heat-exchanger rig 2
In flow downward and flow into pond 9 from drain pipe 12, water pump 10 and circulating water pipe 11 by the remaining water collected in pond 9 be pumped into again to
It is re-used in water quenching chamber 1.
First inclined-plane 11 of the water quenching chamber 11 is made of refractory material, can effectively keep out high temperature.
Second inclined-plane 11 of the water quenching chamber 11 is using metal net at playing a role in filtering, mainly bumping post bulk
Clinker allows the clinker of fritter to pass through, and the second inclined-plane 11 can also be made of refractory material.
As shown in fig.2, a kind of slag heat recovery device, including multiple above-mentioned heat recovery modules 100, multiple recuperation of heat moulds
Block 100 is also connect with grinding device 200 after being sequentially connected, and multiple heat recovery modules 100 recycle the steam of step temperature and pressure.
Clinker after ironmaking, steel-making is directly introduced into the slag heat recovery device, on the one hand each helical feed heat-exchanger rig 2 conveys
Clinker, heat recovery module 100 cools down to clinker and absorbs heat when conveying clinker, and multiple groups heat recovery module 100 successively absorbs
Temperature in clinker, the steam after heat absorption form the steam of different step temperatures and pressure, and various steam can be passed through to various
In steam executing agency, realizes and pass through after the re-using of energy, clinker after cooling can be ground by grinding device 200
Conveyer belt is transported away.
In the present embodiment, there are three the settings of heat recovery module 100, respectively high pressure heat recovery module 110, middle pressure heat are returned
Receive module 120 and low pressure heat recovery module 130.What high pressure heat recovery module 110 exported is high temperature and high pressure steam, which can be with
It is passed through steam turbine or temperature difference power machine, drives steel mill's other equipment, power generation, blast furnace air, vacuum processing etc..And middle pressure recuperation of heat
Module output be medium temperature and medium pressure steam, which can be used for temperature difference power machine, or in steel mill cold rolling, continuous casting,
Desulfurization etc..And it is the steam of low-temp low-pressure that low pressure heat recovery module 130, which exports, the steam can be used for steel rolling in steel mill,
Chemistry generates, life uses.
Preferably, 110 front end of high pressure heat recovery module is also equipped with dismountable temperature regulation section 300, temperature regulation section
Clinker is cooled to 1100 DEG C or less by 300.Since the slag temperature of rigid outlet is about at 1400 DEG C or so, and 1400 DEG C of clinker
Temperature is excessively high higher to heat recovery module structural requirement, so first having to the temperature of clinker being reduced to 1100 DEG C or so.The temperature
Degree adjustment portion can be used fused salt and absorb heat as medium, to reduce the temperature of clinker.
As shown in fig.3, temperature regulation section 300 includes cooling shell 301, medium inlet pipe 302, medium outlet pipe 303, cooling
The slag input chamber 305 being connected to high pressure heat recovery module 110 is offered in shell 301, is opened in the shell 301 around slag input chamber 305
Equipped with a circle heat exchange chamber 304, medium inlet pipe 302 and medium outlet pipe 303 are symmetrically installed on cooling 301 two sides of shell, and with
Heat exchange chamber 304 is connected to.Fused-salt medium is entered in the heat exchange chamber 304 in cooling shell 301 by medium inlet pipe 302, heat absorption
It is exported later from medium outlet pipe 303, clinker passes through from slag input chamber 303.Fused salt after melting can be used for driving other engines
Structure.
The preheating in clinker can be effectively collected by the device, and then pre- heat absorption is later used in driving steel mill
Other equipment, or power generation, or life uses, and effectively increases heat utilization ratio, reaches energy-saving, reduces production cost
Purpose.
Although the embodiments of the invention are described in conjunction with the attached drawings, but patent owner can be in appended claims
Within the scope of make various deformations or amendments, as long as it does not exceed the scope of protection described in the claims to the invention, all should
Within protection scope of the present invention.
Claims (6)
1. a kind of heat recovery module, it is characterised in that: including helical feed heat-exchanger rig, above the helical feed heat-exchanger rig
It is provided with water quenching chamber, clinker import and superheated steam outlet, and the water quenching chamber bottom and spiral shell are provided with above the water quenching chamber
Delivery heat transfer device inlet communication is revolved, the helical feed heat-exchanger rig connect with power device, also sets up in the water quenching chamber
There is spray equipment；
The water quenching chamber bottom is also communicated with tapping pipe, and the tapping pipe is connected to pond, and the pond passes through water pump and spray
Device connection；
Helical feed heat-exchanger rig inner cavity central bottom is connected to by drain pipe with pond；
Safe overflow valve is also set up on the water quenching chamber outer wall；
The water quenching chamber section is triangle, and the water quenching chamber bottom is provided with the first inclined-plane and the second inclined-plane, and described second tiltedly
Offer the mesh with the helical feed heat-exchanger rig inlet communication on face, the clinker import setting the first inclined-plane just on
Side, the superheated steam outlet are arranged right above the second inclined-plane, and the spray equipment is arranged above the first inclined-plane top, institute
The first inclined-plane lower part is stated to be connected to tapping pipe.
2. a kind of blast-furnace slag heat recovery apparatus, it is characterised in that: more including multiple heat recovery modules described in claim 1
A heat recovery module is also connect with grinding device after being sequentially connected, multiple heat recovery modules recycling step temperatures and pressure
Steam.
3. slag heat recovery device according to claim 2, it is characterised in that: there are three the heat recovery module settings,
Respectively high pressure heat recovery module, middle pressure heat recovery module and low pressure heat recovery module.
4. slag heat recovery device according to claim 3, it is characterised in that: also pacify high pressure heat recovery module front end
Equipped with dismountable temperature regulation section, clinker is cooled to 1100 DEG C or less by the temperature regulation section.
5. slag heat recovery device according to claim 4, it is characterised in that: the temperature regulation section includes cooling shell
Body, medium inlet pipe, medium outlet pipe, offer the slag input chamber being connected to high pressure heat recovery module in the cooling shell, it is described into
A circle heat exchange chamber is offered in shell around slag chamber, the medium inlet pipe and medium outlet pipe are symmetrically installed on cooling shell
Two sides, and be connected to heat exchange chamber.
6. slag heat recovery device according to claim 5, it is characterised in that: the medium in the high pressure heat recovery module
For fused salt.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710128495.XA CN107043834B (en) | 2017-03-06 | 2017-03-06 | A kind of blast-furnace slag heat recovery apparatus of heat recovery module and its composition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710128495.XA CN107043834B (en) | 2017-03-06 | 2017-03-06 | A kind of blast-furnace slag heat recovery apparatus of heat recovery module and its composition |
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| CN107043834A CN107043834A (en) | 2017-08-15 |
| CN107043834B true CN107043834B (en) | 2019-07-09 |
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| CN109011933A (en) * | 2018-06-26 | 2018-12-18 | 昆明理工大学 | A kind of yellow phosphorus furnace slag water quenching sealing method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2377255Y (en) * | 1999-05-31 | 2000-05-10 | 宝山钢铁(集团)公司 | Feeding device for treatment of converter slag by drum process |
| JP2012012260A (en) * | 2010-07-01 | 2012-01-19 | Sumikin Recotech Co Ltd | Dewatering vessel for water granulation treatment and apparatus for making water granulation equipped with the same |
| CN102392085B (en) * | 2011-11-21 | 2013-04-03 | 济南钢铁股份有限公司 | Blast furnace slag waste heat recycling system |
| CN202415574U (en) * | 2011-12-20 | 2012-09-05 | 南京凯盛开能环保能源有限公司 | Molten slag quenching and dry granulating and sensible heat recovery power generation system |
| KR20130110477A (en) * | 2012-03-29 | 2013-10-10 | 현대제철 주식회사 | Melting slag wet-treatmenting apparatus |
| CN103194552B (en) * | 2013-04-09 | 2015-06-17 | 青岛理工大学 | Rotary gas-solid heat exchange device utilizing waste slag heat and heat exchange method |
| CN104087690A (en) * | 2014-06-10 | 2014-10-08 | 曾志勇 | Thermal energy recovery device and thermal energy recovery method of high-temperature slag |
| CN104180357B (en) * | 2014-08-29 | 2015-12-09 | 朱杰 | High-temperature solid bulk cargo waste-heat recovery device |
| CN206956069U (en) * | 2017-03-06 | 2018-02-02 | 芜湖凯博环保科技股份有限公司 | A kind of blast-furnace slag heat reclamation device of heat recovery module and its composition |
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