CN204730682U - A kind of sintering circular-cooler waste heat recovery cigarette wind apparatus - Google Patents
A kind of sintering circular-cooler waste heat recovery cigarette wind apparatus Download PDFInfo
- Publication number
- CN204730682U CN204730682U CN201520475755.7U CN201520475755U CN204730682U CN 204730682 U CN204730682 U CN 204730682U CN 201520475755 U CN201520475755 U CN 201520475755U CN 204730682 U CN204730682 U CN 204730682U
- Authority
- CN
- China
- Prior art keywords
- wind
- flue gas
- waste heat
- section
- heat recovery
- 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.)
- Active
Links
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
-
- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The utility model discloses a kind of sintering circular-cooler waste heat recovery cigarette wind apparatus, described device comprises flue gas and gets wind system, afterheat boiler system and flue gas air return system; Described afterheat boiler system is got wind system with described flue gas and is connected; Described flue gas air return system is connected with described afterheat boiler system by circulating fan; Described flue gas is got wind system and is formed by getting wind pipeline, valve and gravitational precipitator; Described afterheat boiler system adopts two pressure waste heat boiler; Described flue gas air return system is made up of backwind tube, valve and circulating fan.The apparatus structure that the utility model provides is compact, it is less to invest, Operation and Maintenance is simple, and can improve utilization rate of waste heat than general retracting device.
Description
Technical field
The utility model relates to sintering circular-cooler waste heat recovery field, particularly relates to a kind of sintering circular-cooler waste heat recovery cigarette wind apparatus.
Background technology
Sintering is one important procedure in steel manufacture process, and for blast furnace ironmaking is supplied raw materials, sintering plant revamp accounts for the 9%-12% of whole iron and steel enterprise total energy consumption, is only second to Iron-smelting.In sintering production process, the heat energy of nearly 50% is had to enter air with the sensible heat form of sinter fume and cooling machine waste gas.
The mineral temperature entering central cooler cooling from sintering is generally 700 ~ 800 DEG C, and cold air is raised by air blast temperature after central cooler high temperature sintering mineral aggregate layer, and first three section of residual heat resources have recoverable value, for 360m
2sintering machine, one section wind-warm syndrome reaches 300 ~ 450 DEG C, and two sections of wind-warm syndrome are generally 250 ~ 300 DEG C, and three sections of wind-warm syndrome are generally about 150 DEG C.
Current, sinter cooler utilizes the mode of UTILIZATION OF VESIDUAL HEAT IN can adopt flue gas recirculation mode, for flue gas recirculation mode, gets wind and air return method is a variety of, and for this low temperature exhaust heat recovery system, improving Gas Parameters is of value to raising steam parameter.Sintering machine blanking place flue-gas temperature is the highest and dustiness is also high, has effect of attrition to waste heat boiler.Reasonably get wind point and the impact of air return method on the distribution of exhaust gas volumn and flue-gas temperature is very large.First flue gas recirculation mode ensures raising one section of cigarette temperature and exhaust gas volumn, and boiler middle pressure steam parameter is improved.Due to Air Leakage Into Boilers, remain flue gas after ensureing to meet one section of return air exhaust gas volumn and get back to two sections, when the requirement of whole technique mineral aggregate temperature can not be met, open the air blast at II section of place.
First flue gas recirculation mode can improve whole system steam parameter, and can reduce the own demand of whole sintering plant.So both meet explained hereafter requirement, improve utilization rate of waste heat again.
To give up fume afterheat resource to make full use of central cooler, adopting two pressure waste heat boiler, two sections of flue gas recirculations utilize, and improve boiler high temperature porch flue-gas temperature, fully reclaim useless fume afterheat and produce steam.
Summary of the invention
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of sintering circular-cooler waste heat recovery cigarette wind apparatus, this device comprises gets wind mode and air return method, system is simple, investment is saved, low from electricity consumption, guarantee boiler abrasion is minimum, entrance flue gas temperature reach the highest and exhaust gas volumn reasonable, improve the steam parameter of device to a certain extent, ensure fume afterheat utilization ratio.
The purpose of this utility model is realized by following technical scheme:
A kind of sintering circular-cooler waste heat recovery cigarette wind apparatus, comprising: flue gas gets wind system, afterheat boiler system and flue gas air return system; Described afterheat boiler system is got wind system with described flue gas and is connected; Described flue gas air return system is connected with described afterheat boiler system by circulating fan;
Described flue gas is got wind system and is formed by getting wind pipeline, valve and gravitational precipitator;
Described afterheat boiler system adopts two pressure waste heat boiler;
Described flue gas air return system is made up of backwind tube, valve and circulating fan.
Compared with prior art, one or more embodiment of the present utility model can have the following advantages by tool:
Because sintering machine blanking place flue-gas temperature is high and dustiness is also high, effect of attrition is had to waste heat boiler, this device arranges gravitational precipitator at high temperature one section of boiler inlet place, and one section is got air port and has certain distance from sinter bed whereabouts place, the abrasion condition of dual reduction boiler.About return air, boiler export flue gas, after circulating fan, first ensures one section of flue gas consumption, improves one section of flue-gas temperature, and residue flue gas enters two sections and recycles, and opens two sections of air blasts simultaneously and ensures two sections of exhaust gas volumns, ensure the cooling effect of the bed of material.This device improves the efficiency of flue gas waste heat recovery effectively.
Accompanying drawing explanation
Fig. 1 is sintering circular-cooler waste heat recovery cigarette wind apparatus structural representation.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with embodiment and accompanying drawing, the utility model embodiment is described in further detail.
As shown in Figure 1, be sintering circular-cooler waste heat recovery cigarette wind apparatus structure, comprise: flue gas gets wind system, afterheat boiler system and flue gas air return system; Described afterheat boiler system is got wind system with described flue gas and is connected; Described flue gas air return system is connected with described afterheat boiler system by circulating fan 6;
Described flue gas is got wind system and is formed by getting wind pipeline, valve and gravitational precipitator 4;
Described afterheat boiler system adopts two pressure waste heat boiler 5;
Described flue gas air return system is made up of backwind tube 8, valve and circulating fan 6.
Above-mentioned wind pipeline of getting is got wind pipeline 2 and high temperature section by low-temperature zone and is got wind pipeline 3 and form, and described low-temperature zone is got wind pipeline and high temperature section and got wind pipeline and be respectively arranged with two sections; Above-mentioned pair of pressure waste heat boiler is provided with high temperature air inlet and low temperature air inlet mouth; Described high temperature air inlet is got wind pipeline by described gravitational precipitator 4 with high temperature section and is connected; Described low temperature air inlet mouth is got wind pipeline with low-temperature zone and is connected.
Above-mentioned high temperature section is got wind pipeline entrance and is arranged in from mouth a distance, sinter bed whereabouts, ensures that flue-gas temperature is high and dustiness is relatively less.
The lower end of above-mentioned pair of pressure waste heat boiler is connected with circulating fan 6, and described circulating fan is also connected with chimney bypass 9.
Said apparatus also comprises central cooler 1 and air blast 10, and described central cooler bottom is provided with lower bellows 7;
Above-mentioned central cooler is provided with two sections, wherein gets wind pipeline with high temperature section and is connected for the Ith section, get wind pipeline and be connected for the IIth section with low-temperature zone; Wherein, low-temperature zone gets the front portion that wind pipeline entrance is arranged in II section, ensures exhaust gas volumn and improves flue-gas temperature.
Described lower bellows are provided with multiple, and multiple lower bellows are separated by baffle plate 11;
Described air blast is provided with two, is connected respectively with described lower bellows.
Above-mentioned backwind tube is provided with three, and described three backwind tubes are connected with lower bellows respectively, and wherein, two backwind tubes are arranged in mainly to be got immediately below airduct or the bellows place in next door, ensures that the little and inleakage of airduct resistance reduces; One of them backwind tube is arranged in II section of master and gets bellows place immediately below airduct, when deficiency in draught cooling does not reach technological requirement, opens the air blast that the IIth section of lower bellows connect, does not affect original technique.
In said apparatus, the I section of flue gas taken out from central cooler 1 enters boiler after the first dedusting of gravitational precipitator 4, II section of flue gas that central cooler 1 takes out and I section of flue gas are mixed into boiler at the low pressure stage of boiler to carry out heat exchange and produces steam, the flue gas after heat exchange by circulating fan 6 enter backwind tube get back to central cooler under bellows 7 recycle.
When the flue gas that is in an emergency can not recycle, can close the electrically operated valve on backwind tube, flue gas is directly emptying by chimney bypass.
Although the embodiment disclosed by the utility model is as above, the embodiment that described content just adopts for the ease of understanding the utility model, and be not used to limit the utility model.Technical staff in any the utility model art; under the prerequisite not departing from the spirit and scope disclosed by the utility model; any amendment and change can be done what implement in form and in details; but scope of patent protection of the present utility model, the scope that still must define with appending claims is as the criterion.
Claims (5)
1. a sintering circular-cooler waste heat recovery cigarette wind apparatus, is characterized in that, described device comprises flue gas and gets wind system, afterheat boiler system and flue gas air return system; Described afterheat boiler system is got wind system with described flue gas and is connected; Described flue gas air return system is connected with described afterheat boiler system by circulating fan;
Described flue gas is got wind system and is formed by getting wind pipeline, valve and gravitational precipitator;
Described afterheat boiler system adopts two pressure waste heat boiler;
Described flue gas air return system is made up of backwind tube, valve and circulating fan.
2. sintering circular-cooler waste heat recovery cigarette wind apparatus as claimed in claim 1, is characterized in that,
Described wind pipeline of getting is got wind pipeline and high temperature section by low-temperature zone and is got wind pipeline and form, and described low-temperature zone is got wind pipeline and high temperature section and got wind pipeline and be respectively arranged with two sections;
Described pair of pressure waste heat boiler is provided with high temperature air inlet and low temperature air inlet mouth; Described high temperature air inlet is got wind pipeline by described gravitational precipitator and high temperature section and is connected; Described low temperature air inlet mouth is got wind pipeline with low-temperature zone and is connected.
3. sintering circular-cooler waste heat recovery cigarette wind apparatus as claimed in claim 1, it is characterized in that, the lower end of described pair of pressure waste heat boiler is connected with circulating fan, and described circulating fan is also connected with chimney bypass.
4. sintering circular-cooler waste heat recovery cigarette wind apparatus as claimed in claim 1, it is characterized in that, described device also comprises central cooler and air blast, and described central cooler bottom is provided with lower bellows;
Described central cooler is provided with I section and II section, wherein gets wind pipeline with high temperature section and is connected for the Ith section, get wind pipeline and be connected for the IIth section with low-temperature zone;
Described lower bellows are provided with multiple, and multiple lower bellows are separated by baffle plate;
Described air blast is provided with two, is connected respectively with described lower bellows.
5. sintering circular-cooler waste heat recovery cigarette wind apparatus as claimed in claim 1, it is characterized in that, described backwind tube is provided with three, and described three backwind tubes are connected with lower bellows respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520475755.7U CN204730682U (en) | 2015-06-30 | 2015-06-30 | A kind of sintering circular-cooler waste heat recovery cigarette wind apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520475755.7U CN204730682U (en) | 2015-06-30 | 2015-06-30 | A kind of sintering circular-cooler waste heat recovery cigarette wind apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204730682U true CN204730682U (en) | 2015-10-28 |
Family
ID=54389024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520475755.7U Active CN204730682U (en) | 2015-06-30 | 2015-06-30 | A kind of sintering circular-cooler waste heat recovery cigarette wind apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204730682U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910450A (en) * | 2016-06-30 | 2016-08-31 | 中冶华天工程技术有限公司 | Exhaust heat recycling system of sintering circular cooling machine |
| CN105973017A (en) * | 2016-06-30 | 2016-09-28 | 中冶华天工程技术有限公司 | Ring cooling machine exhaust gas waste heat comprehensive utilization system |
| CN106091710A (en) * | 2016-06-30 | 2016-11-09 | 中冶华天工程技术有限公司 | Sintering circular-cooler waste gas residual heat comprehensive reutilization system |
| CN107228572A (en) * | 2017-07-25 | 2017-10-03 | 天津健威泽节能环保科技股份有限公司 | A kind of regulatable complete alternation wind sintering machine cooler afterheat generating system |
| CN107702545A (en) * | 2017-08-15 | 2018-02-16 | 中冶华天工程技术有限公司 | A kind of sintering deposit residual neat recovering system |
| CN108592646A (en) * | 2018-06-05 | 2018-09-28 | 马鞍山钢铁股份有限公司 | A kind of sintering waste heat generating system waste-heat recovery device and application method |
-
2015
- 2015-06-30 CN CN201520475755.7U patent/CN204730682U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910450A (en) * | 2016-06-30 | 2016-08-31 | 中冶华天工程技术有限公司 | Exhaust heat recycling system of sintering circular cooling machine |
| CN105973017A (en) * | 2016-06-30 | 2016-09-28 | 中冶华天工程技术有限公司 | Ring cooling machine exhaust gas waste heat comprehensive utilization system |
| CN106091710A (en) * | 2016-06-30 | 2016-11-09 | 中冶华天工程技术有限公司 | Sintering circular-cooler waste gas residual heat comprehensive reutilization system |
| CN106091710B (en) * | 2016-06-30 | 2018-07-10 | 中冶华天工程技术有限公司 | Sintering circular-cooler waste gas residual heat comprehensive reutilization system |
| CN105973017B (en) * | 2016-06-30 | 2018-07-31 | 中冶华天工程技术有限公司 | Ring cold machine waste gas residual heat utilization system |
| CN107228572A (en) * | 2017-07-25 | 2017-10-03 | 天津健威泽节能环保科技股份有限公司 | A kind of regulatable complete alternation wind sintering machine cooler afterheat generating system |
| CN107702545A (en) * | 2017-08-15 | 2018-02-16 | 中冶华天工程技术有限公司 | A kind of sintering deposit residual neat recovering system |
| CN107702545B (en) * | 2017-08-15 | 2019-07-26 | 中冶华天工程技术有限公司 | A kind of sinter residual neat recovering system |
| CN108592646A (en) * | 2018-06-05 | 2018-09-28 | 马鞍山钢铁股份有限公司 | A kind of sintering waste heat generating system waste-heat recovery device and application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204730682U (en) | A kind of sintering circular-cooler waste heat recovery cigarette wind apparatus | |
| CN203336981U (en) | Novel sintered ring refrigerator flue gas waste heat recycling system | |
| CN103234363A (en) | Furnace type efficient recovery system for flue gas waste heat of cooled sinter | |
| CN103615909B (en) | Hot air circulation sintering and sintering double-pressure waste heat utilizing system and method | |
| CN104457299B (en) | A kind of screw expander that adopts drags sintering waste heat generating system and method thereof | |
| CN206683423U (en) | A kind of sintering circular-cooler flue gas waste heat utilization device | |
| CN109971906A (en) | A kind of restoring method of ultralow carbon emission production sponge iron | |
| CN201266021Y (en) | Roller kiln quench zone exhaust heat utilization apparatus | |
| CN206618280U (en) | A kind of waste heat of annealing kiln steam electric power generator | |
| CN203259023U (en) | Furnace-type high-efficiency smoke recycling system for waste heat in cooling sinters | |
| CN204404817U (en) | Fume afterheat resources shifting with utilize system | |
| CN204943883U (en) | A kind of heating boiler of hot tail gas Heat Treatment device | |
| CN203518639U (en) | Waste heat recovery unit for metallurgical rotary type lime kiln | |
| CN204079999U (en) | A kind of novel blast-furnace Coalblowing system | |
| CN209116362U (en) | Energy-saving hot blast furnace recycle device | |
| CN204404813U (en) | A kind of screw expander that adopts drags sintering waste heat generating system | |
| CN206069919U (en) | A kind of blast funnace hot blast stove preheating device | |
| CN203586847U (en) | Waste heat utilization device used for smoke in large flue of sintering machine | |
| CN104534894A (en) | Conversion and utilization system of flue gas waste heat resources | |
| CN103725818B (en) | A kind of hotblast stove low temperature exhaust heat degree of depth recovery system | |
| CN204227920U (en) | A kind of furnace construction with heat recovery function | |
| CN103836953A (en) | Method for preventing main flue and dust remover in circulation sintering from condensation and air bellow branch pipe devices | |
| CN214842698U (en) | Waste heat recovery system for sand washing water of steel mill | |
| CN203704686U (en) | Off-gas sensible heat recovery device for metallurgical off-gas acid making device | |
| CN203810917U (en) | Production-increasing modification system for sintering machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |