CN102409168A - Joint driving unit for sintering waste heat recovery and sintering main exhaust fan - Google Patents
Joint driving unit for sintering waste heat recovery and sintering main exhaust fan Download PDFInfo
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- CN102409168A CN102409168A CN2011103333135A CN201110333313A CN102409168A CN 102409168 A CN102409168 A CN 102409168A CN 2011103333135 A CN2011103333135 A CN 2011103333135A CN 201110333313 A CN201110333313 A CN 201110333313A CN 102409168 A CN102409168 A CN 102409168A
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- sintering
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- main exhauster
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- 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The invention discloses a joint driving unit for sintering waste heat recovery and sintering main exhaust fan. The unit comprises a double-output shaft sintering main exhaust fan, a synchronous motor, a variable speed clutch and a sintering waste heat recovery steam turbine; one output shaft of the sintering main exhaust fan is coaxially connected with the synchronous motor; the other output shaft of the sintering main exhaust fan is coaxially connected with the sintering waste heat recovery steam turbine by the variable speed clutch. The unit improves the energy recovery rate of metallurgical system, which is a new energy-saving and emission-reducing device for metallurgical system.
Description
Technical field
The present invention relates to that energy recovery utilizes equipment in the ferrous metallurgy flow process, be specifically related to a kind of sintering waste heat and reclaim and sintering main exhauster associating actuating unit.
Background technology
In the ironmaking flow process; The sintering circuit energy consumption accounts for more than 10% of energy consumption per ton steel; The exhaust heat that cooler is discharged; Its heat energy is approximately 35% of agglomerate firing system heat consumption, and make full use of this part heat and can significantly reduce the sintering circuit energy consumption and account for 12% of metallurgical total energy consumption, be the second largest power consumption operation that is only second to ironmaking.General sintering plant sinter fume medial temperature≤150 ℃, the tail flue-gas temperature reaches 300 ℃～400 ℃.Present sinter cooler waste heat recovery; Be to reclaim the low grade residual heat energy through fly-ash separator post-heating waste heat boiler through reclaiming the fall flue gas of airtight section of ore deposit bellows and sinter cooler of sintering machine tail; In conjunction with low-temperature cogeneration technology, promote the complete set technology of the turbine driven set acting generating of low parameter with the superheated vapo(u)r of waste heat boiler.This technology is to be mechanical energy with thermal power transfer, and secondary converts the energy recovery technology of electric energy into then.Need sole investment factory building, generating set, design system separately, and be equipped with a cover high pressure and be incorporated into the power networks and equipment for surfing the net, cost of investment is bigger.
The sintering main exhauster is an iron ore raw material agglomerating key equipment, and with the supporting use of the sinter machine of corresponding specification, the medium of conveying is a sinter fume.Sinter fume must eliminate soot particle or other foreign material through dedusting before getting into the sintering main exhauster.In the steel enterprise sintering flow process, sintering main exhauster capacity accounts for 30%～50% of total installation of generating capacity.Because part auxiliary facility operation factor is low in the SINTERING PRODUCTION, and the capacity motor of selecting is bigger than normal, and main exhauster current consumption accounts for 50%～70%.Therefore, the sintering main exhauster is the power consumption rich and influential family of sintering system.Existing sintering main exhauster is by direct motor drive, and unit is arranged See Figure.This technology is to convert electrical energy into mechanical energy, drags the unit of sintering main exhauster rotation through phonomoter.Need the sole investment factory building, design system separately, cost of investment is bigger.
Summary of the invention
To the defective or the deficiency of prior art, the object of the invention reclaims and sintering main exhauster associating actuating unit for a kind of sintering waste heat is provided.With when goods and materials such as minimizing equipment, factory building drop into, further improve the energy recovery rate in the iron-smelting process.
For realizing above-mentioned technical assignment, the present invention takes following technical solution:
A kind of sintering waste heat reclaims and sintering main exhauster associating actuating unit; It is characterized in that; The sintering main exhauster, synchronous motor, speed change clutch and the sintering waste heat that comprise double output shaft reclaim turbine; One output axle head of said sintering main exhauster is connected with synchronous motor is coaxial, and turbine is coaxial is connected through the recovery of speed change clutch and sintering waste heat for another output axle head of sintering main exhauster.
It is 2900r/min～3100r/min that said speed change clutch meshes rotating speed automatically.
The rotating ratio that said sintering waste heat reclaims between turbine and the sintering main exhauster is 2～3.
Unit of the present invention has following technical characterstic:
(1) novel unique coaxial series design thinking of three machines.
(2) cancellation generator, the cancellation high pressure is transported to electric system; The lubricating oil station merges; The power oil station merges; Robot control system(RCS) optimization is integrated into cover system control two cover units; Save facility investment and function is constant.
(3) the Conversion of energy energy saver mode of novelty; The energy that sintering waste heat is reclaimed directly replenishes axle as rotating mechanical energy and fastens; Coaxial drive sintering main exhauster, phonomoter only need be exported the difference power that sintering main exhauster wasted work and sintering waste heat reclaim the turbine acting.Reduced the electric current of former phonomoter operation, made the online reduction electric current of phonomoter that drives the sintering main exhauster and energy-conservation.
(4) the online engagement of application clutch coupling of uniqueness and disengagement increased functionality unit safety nargin.When the waste heat turbine just often, clutches engaged reclaims the power that turbine reclaims to sintering waste heat and passes to the sintering main exhauster.When waste heat turbine fault, the clutch out between turbine and the sintering main exhauster uses the operation of phonomoter individual drive sintering main exhauster, guarantees the ordinary production of sintering system.
Unit of the present invention forms brand-new sintering waste heat and sintering main exhauster energy recovery three units; Directly save generator and be transported to electric system; Energy directly utilizes and reclaims and act on axle system driving sintering main exhauster; Saved twice energy transformation of removing electrical network and following electrical network, this The Application of Technology makes energy recovery efficiency independently can improve about 4% on the basis separately in system before, and synthesis energy saving efficient improves greatly.Simultaneously, after two cover systems are integrated, function optimization, the auxiliary system of two cover units merges, and system is integrated, public factory building, lubricating oil station, power oil station etc., simplified apparatus, compact construction, arrangement convenience, efficient is higher.Reduce investment and running cost greatly, reduce coke ratio, improve energy recovery efficiency.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Below in conjunction with embodiment and accompanying drawing the present invention is done further explain.
Embodiment
The present invention considers from the power consumption characteristics of metallurgical technology total system, with sintering waste heat energy recovery generation technology and the integrated configuration of motor-driven sintering main exhauster drive system.Shown in accompanying drawing 1; Specifically be sintering main exhauster 3 and the synchronous motor 4 coaxial arranged in series that sintering waste heat reclaimed turbine 1, double output shaft; Wherein: an output terminal of sintering main exhauster 3 and 4 coaxial connections of synchronous motor, another output terminal of sintering main exhauster 3 reclaims turbine 1 through speed change clutch 2 and sintering waste heat and realizes coaxial the connection.For guaranteeing the steady running of unit, through long-term theory and practice research, described speed change clutch 2 engagement rotating speed automatically is 2900r/min～3100r/min.The speed ratio that described sintering waste heat reclaims between turbine 1 and the sintering main exhauster 3 is 2～3, the rotor problem aspect the vibration that can not twist when under this speed ratio, moving.
The present invention is on the basis of original motor-driven sintering main exhauster and sintering waste heat energy recovery power generation system technology; With two kinds of system integration configurations, form the novel associating energy recovery unit that sintering waste heat reclaims turbine and phonomoter coaxial drive sintering main exhauster.Cancel generator and be transported to electric system; Merge robot control system(RCS), oil system is regulated oil system etc.; Avoided the loss link of energy transformation; Increased energy recovery, guaranteed that device can not have influence on the normal operation of sintered production line under various operating modes, and can recycle the energy of sinter fume waste heat to greatest extent.Function with online engagement and ON-LINE SEPARATION.In actual motion; The sintering main exhauster of double output shaft reclaims between the turbine with sintering waste heat and is connected with speed change clutch; After the sintering main exhauster started, speed change clutch meshed automatically when sintering waste heat reclaims turbine speed and is raised to 2900r/min～3100r/min, with the sintering main exhauster that drives two shafts of phonomoter double output shaft; Output power of motor descends, thereby reaches purpose of energy saving; When turbine breaks down, when rotating speed was lower than 2900r/min～3100r/min, speed change clutch is thrown off automatically, with phonomoter individual drive sintering main exhauster, carries out no disturbance and switches, and was safe and reliable.
When a whole set of unit normally moves; The various operating modes of sintering process mainly realize through the adjustment doors of sintering main exhauster the demand of sintering main exhauster air quantity; No matter any situation; Sintering main exhauster group all is the independently system of overlapping, and can satisfy the various operating modes of the normal operation of sintering process fully.
For two kinds of type of drive having guaranteed direct motor drive and turbine drive cooperate synchronously, between sintering waste heat recovery turbine and sintering main exhauster, be furnished with the large-sized speed-changing clutch coupling, connect through shaft coupling.Before turbine did not start, clutch coupling do not combine, the sintering main exhauster was driven the speed change clutch output terminal simultaneously and is rotated by direct motor drive, and the clutch coupling input terminus remains static; After turbine starts, drive the clutch coupling input terminus and rotate, after synchronizing clutch input terminus rotating speed was higher than the output terminal rotating speed, clutch coupling combined, and steam turbine power is delivered to the sintering main exhauster through little, master wheel, synchronizing clutch and shaft coupling.When sintering waste heat recovery turbine breaks down,,, carry out no disturbance and switch with phonomoter individual drive sintering main exhauster through the online disengagement of speed change clutch.
Embodiment 1:
Among this embodiment, the sintering main exhauster 3 of above-mentioned double output shaft is specially centrifugal blower; Above-mentioned sintering waste heat reclaims turbine 1 and is specially condensing steam turbine.Condensing steam turbine 1, centrifugal blower 3 and synchronous motor 4 coaxial arranged in series; Wherein, realizing coaxial connections through speed change clutch 2 between centrifugal blower 3 and the condensing steam turbine 1, is the steady running that guarantees unit; Described speed change clutch 2 engagement rotating speed automatically is 3000r/min; Be that speed change clutch 2 meshed automatically when condensing steam turbine 1 rotating speed is raised to 3000r/min after centrifugal blower 3 started, with the centrifugal blower 3 of the two shafts of phonomoter 4 drivings; Phonomoter 4 output ratings descend, thereby reach purpose of energy saving.When turbine 1 breaks down, when rotating speed was lower than 3000r/min, speed change clutch 2 was thrown off automatically, with phonomoter 4 individual drive centrifugal blowers 3, carried out no disturbance and switched, and is safe and reliable; Speed ratio between sintering waste heat condensing steam turbine 1 and the centrifugal blower 3 is 2.973, and wherein: the concrete working speed of turbine 1 is 2973r/min; The working speed of centrifugal blower 2 is: 1000r/min.
Embodiment 2:
Sintering main exhauster 3 rotating speeds are 1500r/min among this embodiment, according to the afterheat steam parameter, when selecting the waste heat turbine speed to be 3000r/min, have higher energy recovery efficiency.Speed ratio between sintering waste heat turbine and the sintering main exhauster is 2.
Claims (3)
1. a sintering waste heat reclaims and sintering main exhauster associating actuating unit; It is characterized in that; The sintering main exhauster (3), synchronous motor (4), speed change clutch (2) and the sintering waste heat that comprise double output shaft reclaim turbine (1); One output shaft of said sintering main exhauster (3) and coaxial connection of synchronous motor (4), another output shaft of sintering main exhauster (3) reclaims coaxial connection of turbine (1) through speed change clutch (2) with sintering waste heat.
2. sintering waste heat as claimed in claim 1 reclaims and sintering main exhauster associating actuating unit, it is characterized in that the automatic engagement rotating speed of said speed change clutch (2) is 2900r/min～3100r/min.
3. sintering waste heat as claimed in claim 1 reclaims and sintering main exhauster associating actuating unit, it is characterized in that the rotating ratio that said sintering waste heat reclaims between turbine (1) and the sintering main exhauster (3) is 2～3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103333135A CN102409168A (en) | 2011-10-28 | 2011-10-28 | Joint driving unit for sintering waste heat recovery and sintering main exhaust fan |
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| CN2011103333135A CN102409168A (en) | 2011-10-28 | 2011-10-28 | Joint driving unit for sintering waste heat recovery and sintering main exhaust fan |
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| CN102409168A true CN102409168A (en) | 2012-04-11 |
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| CN2011103333135A Pending CN102409168A (en) | 2011-10-28 | 2011-10-28 | Joint driving unit for sintering waste heat recovery and sintering main exhaust fan |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154012A (en) * | 2014-09-01 | 2014-11-19 | 铜陵化工集团有机化工有限责任公司 | Draught fan driven by double power sources |
| CN104533811A (en) * | 2014-12-18 | 2015-04-22 | 北京京诚科林环保科技有限公司 | Blast furnace steam-driven air blast system and method |
| CN106382135A (en) * | 2016-08-31 | 2017-02-08 | 西安陕鼓动力股份有限公司 | Safety interlocking shutdown system and methods of sintering waste heat recovery and sintering fan combined unit |
| CN106403626A (en) * | 2016-08-31 | 2017-02-15 | 西安陕鼓动力股份有限公司 | Full-automatic starting system and method for sintering waste heat recycling and sintering draught fan combined unit |
| CN109268079A (en) * | 2018-09-30 | 2019-01-25 | 西安陕鼓动力股份有限公司 | The duty control method of steam turbine in Rotation Process drops in SHRT unit frequency-conversion |
| CN109519232A (en) * | 2018-09-30 | 2019-03-26 | 西安陕鼓动力股份有限公司 | SHRT unit frequency-conversion device auto-adjustment control method synchronous with turbine speed |
| CN114718682A (en) * | 2022-04-13 | 2022-07-08 | 中冶东方工程技术有限公司 | Sintering steam dragging system and method |
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| CN201288679Y (en) * | 2008-11-10 | 2009-08-12 | 北京得能创新科技有限公司 | Dual driving apparatus for steam turbine and electric motor |
| CN202297733U (en) * | 2011-10-28 | 2012-07-04 | 西安陕鼓动力股份有限公司 | Sintering waste heat recovery and sintering main exhaust fan combined driving unit |
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2011
- 2011-10-28 CN CN2011103333135A patent/CN102409168A/en active Pending
Patent Citations (4)
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| CN1614034A (en) * | 2004-08-12 | 2005-05-11 | 陕西鼓风机（集团）有限公司 | Blowing energy recovering method for blast furnace |
| CN2924090Y (en) * | 2006-03-20 | 2007-07-18 | 陕西鼓风机（集团）有限公司 | Blast-furnace blower group of coaxial driven by coal-gas turbine and motor |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154012A (en) * | 2014-09-01 | 2014-11-19 | 铜陵化工集团有机化工有限责任公司 | Draught fan driven by double power sources |
| CN104533811A (en) * | 2014-12-18 | 2015-04-22 | 北京京诚科林环保科技有限公司 | Blast furnace steam-driven air blast system and method |
| CN106382135A (en) * | 2016-08-31 | 2017-02-08 | 西安陕鼓动力股份有限公司 | Safety interlocking shutdown system and methods of sintering waste heat recovery and sintering fan combined unit |
| CN106403626A (en) * | 2016-08-31 | 2017-02-15 | 西安陕鼓动力股份有限公司 | Full-automatic starting system and method for sintering waste heat recycling and sintering draught fan combined unit |
| CN106382135B (en) * | 2016-08-31 | 2018-07-27 | 西安陕鼓动力股份有限公司 | Sintering waste heat recycles and Sinter air machine Unit erriger safety interlocking shutdown system and method |
| CN106403626B (en) * | 2016-08-31 | 2019-03-22 | 西安陕鼓动力股份有限公司 | Sintering waste heat recycling and the full-automatic activation system of Sinter air machine Unit erriger and method |
| CN109268079A (en) * | 2018-09-30 | 2019-01-25 | 西安陕鼓动力股份有限公司 | The duty control method of steam turbine in Rotation Process drops in SHRT unit frequency-conversion |
| CN109519232A (en) * | 2018-09-30 | 2019-03-26 | 西安陕鼓动力股份有限公司 | SHRT unit frequency-conversion device auto-adjustment control method synchronous with turbine speed |
| CN109268079B (en) * | 2018-09-30 | 2020-11-20 | 西安陕鼓动力股份有限公司 | Load control method of steam turbine in variable-frequency and rotational-speed-reduction process of SHRT unit |
| CN109519232B (en) * | 2018-09-30 | 2020-12-04 | 西安陕鼓动力股份有限公司 | Synchronous automatic regulation control method for rotation speed of SHRT unit frequency converter and steam turbine |
| CN114718682A (en) * | 2022-04-13 | 2022-07-08 | 中冶东方工程技术有限公司 | Sintering steam dragging system and method |
| CN114718682B (en) * | 2022-04-13 | 2024-02-09 | 中冶东方工程技术有限公司 | Sintering steam dragging system and method |
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Application publication date: 20120411 |