CN105157440B - It is independent to mend III area's hot blast and the adjustable hot blast complete alternation sintering waste heat utilization system of thermal source subregion - Google Patents
It is independent to mend III area's hot blast and the adjustable hot blast complete alternation sintering waste heat utilization system of thermal source subregion Download PDFInfo
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- CN105157440B CN105157440B CN201510659814.0A CN201510659814A CN105157440B CN 105157440 B CN105157440 B CN 105157440B CN 201510659814 A CN201510659814 A CN 201510659814A CN 105157440 B CN105157440 B CN 105157440B
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- hot blast
- waste heat
- wind
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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
- 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 present invention relates to a kind of III area's hot blast of independent benefit and the adjustable hot blast complete alternation sintering waste heat utilization system of thermal source subregion.Which expands out an independent Bu Feng area in III area's high temperature section close to IIth area, the cold wind that II area's standby fan is extracted forms hot blast through the sintering deposit bed of material of III area's high temperature section and enters Bu Feng areas balance plenum chamber, under the draft effect of circulating fan fills into circulating fan entrance；Ith, II separate plate and include the standing part on top and the moveable part of bottom, the bottom of standing part is provided with the different lifting position in position, moveable part is connected with standing part by the lifting position, and moveable part bottom is in inverted triangle open type malleation self sealing structure.The present invention solves Ith area that known complete hot air cycle sintering waste heat utilization system is present, II area's heat energy allocation proportion and cannot adjust, mend to air-dry and relate to hot blast normal circulation, mend cold wind and reduce waste heat grade, mend the defects such as air quantity and the serious mismatch of inleakage.
Description
Technical field
The present invention relates to sintering waste heat utilization system, especially a kind of III area's hot blast of independent benefit and the adjustable heat of thermal source subregion
Wind complete alternation sintering waste heat utilization system.
Background technology
According to statistics, sintering circuit energy consumption accounts for the 10% of iron and steel production total energy consumption.And sintering waste heat accounts for sintering circuit energy consumption
50%.So the efficient utilization of sintering waste heat has important practical significance to reducing iron and steel production cost and energy-saving and emission-reduction.
Complete hot air cycle sintering waste heat utilization system is that sintering waste heat conventional at present reclaims form, and known full hot blast is followed
The thermal source of ring sintering waste heat utilization system figure, from I area's waste gas of sintering circular-cooler（High-temp waste gas）With II area's waste gas（Middle temperature is given up
Gas）, and III area's waste gas（Low temperature waste gas）It is directly discharged in air, I area's waste gas and II area's exhaust gas flow and temperature distribution are to sending out
Electrical efficiency has material impact, and its specific method of salary distribution is decided by the position of subregion dividing plate between Ith area, IIth area.I area's waste gas and
II area's waste gas after heat release, forms the still hot air draft with uniform temperature in waste heat boiler, and complete in the presence of circulating fan
Portion is delivered to central cooler bottom and recycles as heat-carrying matter, therefore the system is referred to as complete hot air cycle sintering waste heat using system
System.As known complete hot air cycle sintering waste heat utilization system adopts the pathogenic wind-warm ratio of complete hot air cycle, waste heat boiler import not have
There is the system temperature of hot air circulation high, so improve the grade of waste heat, finally improve the efficiency of cogeneration.Due to ring it is cold
Mobile trolley used in machine to there is gap between static bellows, there is air leakage phenomena in ducting system, so needing by circulated air system
Wind is mended within the export-oriented system of system, existing benefit wind position is entered by the direct suction cold wind of blower fan is mended in the exit of circulating fan
Row mends wind.The problem of presence is：
Do not have any resistance elements due to mending fans entrance, wind is mended so mending the blower press overwhelming majority and being used for being converted into
Static pressure, mends wind and has higher hydrostatic head, and heat boiler of having a surplus before circulating fan, valve, effusion meter and longer air channel etc.
Resistance elements, its total head overwhelming majority are used for overcoming flow resistance, and only surplus sub-fraction is used for the static pressure for being converted into circulating air,
So, circulating air has relatively low hydrostatic head, due to mending blast head height in circulated air pressure head, mends wind and entering for circulated air is produced
Very high inhibition is given birth to, that is, has been mended and is air-dried the normal work for having related to wind circulating system.In actual production, IIth areas of general Zhi Dui
Benefit wind is carried out, so, hot blast of the cold wind that II area bottom of central cooler enters more than circulation, hot blast is reduced, cold wind increase causes ring
The pathogenic wind-warm on II area top of cold is low, so as to affect main steam amount and secondary vapour parameter, eventually reduces generated energy.
In addition, mend air quantity cannot realize feeding according to system air leakage amount, and can only determine that this is one by fan parameter is mended
Major defect.Mend cold blast rate typically much greater than inleakage, this is moved after resulting in the neutral point of circulating fan, above central cooler
Malleation is excessive, finally in turn results in hot blast and leaks in a large number, and this circulation deteriorates the generated energy that certainly will finally reduce system.
Further, as IIth area directly provides higher total head by mending blower fan, upper and lower Ith area of central cooler, II area's pressure imbalance, two
The individual region wind that leaks out and go here and there causes generated energy to decline.
The content of the invention
Present invention seek to address that known complete hot air cycle sintering waste heat utilization system is due to mending, and wind position is unreasonable, it is cold to mend
Air temperature is low, the problem of the lower power production that the defect such as excessive of mending cold blast rate is caused, and provide it is a kind of it is independent mend III area's hot blast and
The adjustable hot blast complete alternation sintering waste heat utilization system of thermal source subregion.
The solve the above problems technical scheme of employing of the present invention is：
A kind of III area's hot blast of independent benefit and the adjustable hot blast complete alternation sintering waste heat utilization system of thermal source subregion, including：Burn
Knot machine, central cooler, central cooler waste heat boiler, circulating fan, I area's standby fan, II area's standby fan, circulating fan, I, II area
Subregion dividing plate；
Above central cooler, III area's high temperature section is provided with benefit wind dividing plate, forms only between the benefit wind dividing plate and II area's rear bulkhead
Li Bufeng areas, and Bu Feng areas balance plenum chamber is constituted by described benefit wind dividing plate, II area's rear bulkhead, described Bu Feng areas put down
The two-way adjusting valve in Bu Feng areas that weighing apparatus plenum chamber passes through to install on secondary air channel road and secondary air channel road is connected with circulating fan entrance, IIth area
Standby fan arranges the wind-supplying mouth that III area's high temperature section above oriented central cooler mends wind, and being consequently formed hot blast benefit wind path line is：IIth area
The cold wind that standby fan is extracted forms hot blast through the sintering deposit bed of material of III area's high temperature section and enters Bu Feng areas balance plenum chamber, is following
Circulating fan entrance is filled under the draft effect of ring blower fan；
Ith, II separate plate and include the standing part on top and the moveable part of bottom, the bottom of standing part is arranged
There is the lifting position that position is different, moveable part is connected with standing part by the lifting position, moveable part bottom is in
Triangular opening formula malleation self sealing structure.
Using the present invention of above-mentioned technical proposal, compared with prior art, its advantage is：
1. mend wind and III area's high-temperature hot-air is changed to by original cold wind, compared with cold wind is supplemented, thermal source product are greatly improved
Position.
2. mend wind position and circulating fan entrance is adjusted to by circulating fan outlet, and have resistance structure fan outlet is mended
（The bed of material）, the defect by mending fan pressure head forced air supplement can be changed by the two-way adjusting valve in Bu Feng areas, be inherently eliminated
Mend the problem that wind severe interference hot air circulating system is normally run.
3. wind is mended when by the sintering deposit bed of material independently of circulating air, no longer interfere the flowing of circulating air by force, can
To realize that pressing eutral margin position and pressure balance mends the technical scheme of wind, to solve existing complete hot air cycle sintering waste heat using system
Unite and mend wind by force, cause to mend the serious imbalance of air quantity and inleakage and thermal source grade degradation is asked according to mending fan parameter
Topic.
4. by the regulation of plate is separated to I, II, thus it is possible to vary Ith area, the allocation proportion of II area's heat energy, and adopt wind
Machine is adjusted to be adjusted with subregion dividing plate and is engaged, and carries out flexible to Ith area, II area's hot air flowrate and temperature, can be flexibly real
The optimization of the matching scheme in existing Ith area, II area's amount of thermal energy and quality, finally provides good thermal source for system generated energy highest
Condition.
5. by I, II moveable bulkhead and malleation self sealing structure for separating plate, effectively suppress and reduce end
Leak out and dividing plate string wind quantity, solve the problems, such as that end is leaked out and dividing plate string wind is serious.
Preferably, the present invention further technical scheme is：
Ith, II standing part for separating plate includes the vertical partition plate of centre, and vertical partition plate both sides are connected to outwards
Stretch and downward-sloping indexing dividing plate, vertical partition plate lower end and two described indexing dividing plate lower ends are respectively provided with movable part
The lifting position divided, moveable part upper end is connected with standing part by the lifting position.
Description of the drawings
Fig. 1 is the system structure diagram of the embodiment of the present invention；
Fig. 2 is that I, II differentiation separates plate malleation self sealing structure schematic diagram in Fig. 1；
In figure：1- sintering wind fans；2- sintering machines；3- sinters hopper；4- seed regions；5- sinter beds；6- sinters opium
Road；7- large flue waste heat boiler air-introduced machines；8- large flue waste heat boilers；9- central cooler wind cabins；10- I, II separates plate；11-
The two-way adjusting valve in Ith area；The two-way adjusting valve in IIth areas of 12-；The two-way adjusting valve in 13- Bu Feng areas；II area's rear bulkheads of 14-；Put down in 15- Bu Feng areas
Weighing apparatus plenum chamber；16- mends wind dividing plate；17- central coolers；18- central cooler waste heat boilers；II area's standby fans of 19-；20- circulating fans；
I area's standby fans of 21-；22- vertical partition plates；23- indexes dividing plate；24- inverted triangle open type malleation self sealing structures.
Specific embodiment
The present invention is further elaborated with reference to embodiments, but the present embodiment does not constitute any restriction to the present invention.
Referring to Fig. 1, the III area's hot blast of this independent benefit and the adjustable hot blast complete alternation of thermal source subregion that the present embodiment is given burns
Surplus heat utilization system, by sintering wind fan 1, sintering machine 2, sintering large flue 6, large flue waste heat boiler air-introduced machine 7, large flue
Waste heat boiler 8, central cooler wind cabin 9, I, II separate plate 10, central cooler 17, central cooler waste heat boiler 18, II area's standby fan
19th, the part such as circulating fan 20, I area's standby fan 21 is constituted, and is separated by dividing plate successively above central cooler 17 from front to back
The high temperature section for having Ith area, IIth area, IIIth area, IIIth area adds benefit wind dividing plate 16, is formed between II area's rear bulkhead 14 and benefit wind dividing plate 16
Independent Bu Feng areas, and Bu Feng areas balance plenum chamber 15 is constituted by mending wind dividing plate 16, II area's rear bulkhead 14, Bu Feng areas balance is quiet
The two-way adjusting valve 13 in Bu Feng areas that pressure chamber 15 passes through to install on secondary air channel road and secondary air channel road is connected with the entrance of circulating fan 20.
I area's standby fan 21, II area's standby fan 19 are the standby fans when circulating fan is disabled, II area's standby fan
19 arrange the wind-supplying mouth that III area's high temperature section above oriented central cooler 17 mends wind, during central cooler 18 normal work of waste heat boiler, mend wind
The two-way adjusting valve 13 in area closes emptying, and the two-way adjusting valve 13 in the maintenance Shi Bufeng of central cooler waste heat boiler 18 areas is closed and mends wind, IIth area
Standby fan 19 undertakes the work for mending blower fan in 20 normal operation of circulating fan.The hot blast being consequently formed mends wind path line：By
II area's standby fan 19 extracts cold wind and pressurizes, and cold wind forms hot blast through the sintering deposit bed of material 25 of III area's high temperature section and enters benefit wind
Area balances plenum chamber 15, and the entrance of circulating fan 20, institute's concurrent heating air temperature are finally filled under the draft effect of circulating fan 20
Generally 180 DEG C or so, slightly above boiler institute waste air temperature.
During central cooler 18 normal work of waste heat boiler, under the premise of main air duct neutral point is normotopic, its pressure needs
Keep balancing with 18 outlet exhaust negative pressure of central cooler waste heat boiler, only in this way, air compensation could be consistent with main air duct inleakage.
The regulation of Bu Feng areas balance 15 blast of plenum chamber is that when Bu Feng areas, balance is quiet by adjusting what the frequency of II area's standby fan 19 was realized
When 15 blast of pressure chamber exports blast higher than central cooler waste heat boiler 18, the frequency of II area's standby fan 19 is reduced, conversely, improving II
The frequency of area's standby fan 19.
By the air quantity regulation scheme for supplementing hot blast, mending air quantity is determined by inleakage, thoroughly overcomes benefit wind
The disadvantage that amount is determined by fan parameter.
Referring to Fig. 2, I, II separates plate 10 is grouped into by the standing part on top and the movable part of bottom, fixed part
Dividing includes the vertical partition plate 22 of centre, and 22 both sides of vertical partition plate are connected to and flex outward and downward-sloping indexing dividing plate
23,22 lower end of vertical partition plate and two indexing dividing plate 23 lower ends are respectively provided with the lifting position of moveable part；Under moveable part
Portion is in inverted triangle open type malleation self sealing structure 24, and moveable part upper end is connected with standing part by lifting position, and is led to
The position for separating the most lower edge of plate 10 on the indexing dividing plate 23 for be connected to diverse location to change I, II differentiation is crossed, finally changes I, II
Section length ratio.
It can thus be appreciated that：Ith, the ratio of II section length is no longer changeless, after residual neat recovering system puts into operation, can
With the actual state according to production, by adjust I, II distinguish area and circulating fan realize I, II area's thermal energy, matter it is optimal
Matching.
Particularly, moveable part bottom is just defining del in inverted triangle open type malleation self sealing structure 24
Means of press seals room, under triangle, the hot blast of length of side institute overlay area is pooled to triangle space, and dynamic pressure is completely converted into static pressure, malleation
Pressure of the pressure of room higher than both sides, can effectively prevent both sides from going here and there mutually wind.
Preferably feasible embodiment of the invention is the foregoing is only, not thereby limits to the interest field of the present invention,
The equivalence changes made by all utilization present specifications, are both contained within the interest field of the present invention.
Claims (2)
1. it is a kind of independently to mend III area's hot blast and the adjustable hot blast complete alternation sintering waste heat utilization system of thermal source subregion, including：Sintering
Machine, central cooler, central cooler waste heat boiler, circulating fan, I area's standby fan, II area's standby fan, circulating fan, I, II distinguishes
Separate plate；It is characterized in that：
Above central cooler, III area's high temperature section is provided with benefit wind dividing plate, forms independent between the benefit wind dividing plate and II area's rear bulkhead
Bu Feng areas, and Bu Feng areas balance plenum chamber is constituted by described benefit wind dividing plate, II area's rear bulkhead, described Bu Feng areas balance is quiet
The two-way adjusting valve in Bu Feng areas that pressure chamber passes through to install on secondary air channel road and secondary air channel road is connected with circulating fan entrance, and IIth area is standby
Blower fan arranges the wind-supplying mouth that III area's high temperature section above oriented central cooler mends wind, and being consequently formed hot blast benefit wind path line is：IIth area is standby
The cold wind that blower fan is extracted forms hot blast through the sintering deposit bed of material of III area's high temperature section and enters Bu Feng areas balance plenum chamber, in circulated air
Circulating fan entrance is filled under the draft effect of machine；
Ith, II separate plate and include the standing part on top and the moveable part of bottom, the bottom of standing part is provided with position
Different lifting positions are put, moveable part is connected with standing part by the lifting position, moveable part bottom is in inverted triangle
Open type malleation self sealing structure.
2. III area's hot blast of independent benefit according to claim 1 and the adjustable hot blast complete alternation sintering waste heat of thermal source subregion are utilized
System, it is characterised in that：Ith, II standing part for separating plate includes the vertical partition plate of centre, and vertical partition plate both sides connect respectively
It is connected to and flexes outward and downward-sloping indexing dividing plate, vertical partition plate lower end and two described indexing dividing plate lower ends is respectively provided with
The lifting position of moveable part, moveable part upper end are connected with standing part by the lifting position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510659814.0A CN105157440B (en) | 2015-10-14 | 2015-10-14 | It is independent to mend III area's hot blast and the adjustable hot blast complete alternation sintering waste heat utilization system of thermal source subregion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510659814.0A CN105157440B (en) | 2015-10-14 | 2015-10-14 | It is independent to mend III area's hot blast and the adjustable hot blast complete alternation sintering waste heat utilization system of thermal source subregion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105157440A CN105157440A (en) | 2015-12-16 |
| CN105157440B true CN105157440B (en) | 2017-03-29 |
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| CN201510659814.0A Expired - Fee Related CN105157440B (en) | 2015-10-14 | 2015-10-14 | It is independent to mend III area's hot blast and the adjustable hot blast complete alternation sintering waste heat utilization system of thermal source subregion |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116294642A (en) * | 2023-04-28 | 2023-06-23 | 秦皇岛新特科技有限公司 | Pollution-free externally-discharged energy-saving cooling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AT352408B (en) * | 1978-03-24 | 1979-09-25 | Voest Ag | METHOD OF BURNING PELLETS ON A WALKING GRATE |
| CN101024143A (en) * | 2007-01-12 | 2007-08-29 | 中冶长天国际工程有限责任公司 | Sinter-smoke circulation collected desulfurizing method and apparatus |
| CN201159601Y (en) * | 2008-01-22 | 2008-12-03 | 袁长胜 | Residual heat utilization device of sintering circular-cooler |
| CN201397054Y (en) * | 2009-04-13 | 2010-02-03 | 浙江西子联合工程有限公司 | Sintering circular cooler waste heat generation circulation smoke optimizing and adjusting system |
| CN102494539B (en) * | 2011-12-30 | 2014-08-06 | 中冶长天国际工程有限责任公司 | Cooler cascade air supply method for residual-heat utilization |
| CN102589305B (en) * | 2012-02-24 | 2015-04-15 | 思安新能源股份有限公司 | Sintering waste heat generating system |
| CN205027145U (en) * | 2015-10-14 | 2016-02-10 | 华北理工大学 | Independently mend III hot -blast and hot -blast complete alternation sintering waste heat utilization systems of heat source subregion adjustable in district |
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