CN108036652A - Sintering waste heat generating is segmented hot air circulating system and its method of adjustment - Google Patents
Sintering waste heat generating is segmented hot air circulating system and its method of adjustment Download PDFInfo
- Publication number
- CN108036652A CN108036652A CN201711268210.9A CN201711268210A CN108036652A CN 108036652 A CN108036652 A CN 108036652A CN 201711268210 A CN201711268210 A CN 201711268210A CN 108036652 A CN108036652 A CN 108036652A
- Authority
- CN
- China
- Prior art keywords
- waste heat
- air inlet
- high temperature
- cold machine
- ring cold
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- F27D2017/006—Systems for reclaiming waste heat using a boiler
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of sintering waste heat generating to be segmented hot air circulating system, including waste heat boiler and sintering circular-cooler, the sintering circular-cooler includes ring cold machine high temperature section and ring cold machine low-temperature zone, further include circulating fan and cooling blower, the outlet of the waste heat boiler is connected with circulating fan, circulating fan is connected with ring cold machine high temperature section, cooling blower is connected with ring cold machine low-temperature zone, the ring cold machine high temperature section is connected by high temperature air inlet smoke pipe with the high temperature air inlet side of waste heat boiler, the ring cold machine low-temperature zone is connected by low temperature air inlet smoke pipe with the low temperature air inlet side of waste heat boiler.System setting method is in sintering circular-cooler yield and temperature fluctuation, and high temperature air inlet side flue-gas temperature is kept by adjusting circulating fan rotating speed, motorized adjustment valve opening means control air quantity.Improve waste heat recovery effect.
Description
Technical field
The present invention relates to cogeneration technology field, and hot air circulating system is segmented more particularly, to a kind of sintering waste heat generating
And its method of adjustment.
Background technology
Sintered ring (band) cold cogeneration technology is generally used by iron and steel enterprise.But waste heat recovery and generating effect
Difference is very big, in addition to sintering production factor, fume recovery system design and the method for operation it is unreasonable be to cause waste heat recovery to imitate
The main reason for fruit is bad.
It is based on for the residual neat recovering system of twin flue (double pressures) waste heat boiler, the step profit of fume afterheat (temperature)
With just can guarantee that waste heat recovery best results.But many fume recovery system designs and the method for operation are unreasonable, cause remaining
Phenomena such as recuperation of heat less effective, ton ore deposit generated energy is low, and system is certainly electric high, seriously affects economic benefit.
The content of the invention
In view of the shortcomings of the prior art, the technical problems to be solved by the invention are to provide a kind of sintering waste heat generating segmentation heat
Air circulating system and its method of adjustment, to achieve the purpose that to improve waste heat recovery effect.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of sintering waste heat generating is segmented hot air circulating system, including waste heat boiler and sintering circular-cooler, the sintered ring
Cold includes ring cold machine high temperature section and ring cold machine low-temperature zone, further includes circulating fan and cooling blower, the waste heat boiler goes out
Mouth is connected with circulating fan, and circulating fan is connected with ring cold machine high temperature section, and cooling blower is connected with ring cold machine low-temperature zone, the ring
Cold high temperature section is connected by high temperature air inlet smoke pipe with the high temperature air inlet side of waste heat boiler, and the ring cold machine low-temperature zone passes through low temperature
Air inlet smoke pipe is connected with the low temperature air inlet side of waste heat boiler.
The high temperature air inlet smoke pipe is equipped with deduster.
The lower part of the ring cold machine high temperature section and the lower part of ring cold machine low-temperature zone are equipped with gas collection bellows.
Electric control valve is equipped with the high temperature air inlet smoke pipe and low temperature air inlet smoke pipe.
The circulating fan is frequency conversion circulating fan.
The deduster is gravitational precipitator.
On the high temperature air inlet smoke pipe and low temperature air inlet smoke pipe emptying motorized adjustment is equipped with front of electric control valve
Valve.
A kind of method of adjustment to sintering waste heat generating segmentation hot air circulating system, comprises the following steps；
(1) cooling blower and circulating fan are opened, and electric control valve is shown in a fully open operation, and emptying electric control valve is in
Closed mode；
(2) flue gas after residual heat boiler for exchanging heat is sent into ring cold machine high temperature section heat exchange high temperature sinter by circulating fan, protects
After holding heat exchange there is higher temperature flue gas to be sent into waste heat boiler high temperature air inlet side through dedusting；
(3) air enters ring cold machine low-temperature zone, flue gas heat exchange low temperature sintering ore deposit, the flue gas after heating by cooling blower
Waste heat boiler low temperature air inlet side is delivered to by low temperature air inlet smoke pipe；
(4) high temperature air inlet side is finally converged with low temperature air inlet side flue gas in waste heat boiler, and cigarette is realized by circulating fan
Gas circulates；In sintering circular-cooler yield and temperature fluctuation, by adjusting circulating fan rotating speed, motorized adjustment valve opening means control
Air quantity processed keeps high temperature air inlet side flue-gas temperature.
Compared with prior art, the present invention has the following advantages：
The system realizes that flue gas system is segmented complete alternation, improves return air temperature, circulating fan return air only enters high temperature section, low
Temperature section ensures that hot air circulation is smooth, ensures waste heat recovery efficiency highest only with air-cooler air blast is gone back, so as to lift a ton ore deposit power generation
Amount, reduces system from electricity consumption, increases economic efficiency.
Brief description of the drawings
The content expressed by each width attached drawing of this specification and the mark in figure are briefly described below：
Fig. 1 is present system schematic diagram.
In figure：
1st, waste heat boiler；2nd, circulating fan；3rd, backwind tube；4th, ring cold machine high temperature section；5th, high temperature air inlet smoke pipe；6th, electric adjustable
Save valve；7th, electric control valve is emptied；8th, gravitational precipitator；9th, low temperature air inlet smoke pipe；10th, cooling blower；11st, gas collection bellows；12、
Ring cold machine low-temperature zone；13rd, sintering circular-cooler.
Embodiment
Below against attached drawing, by the description of the embodiment, making to embodiment of the invention further details of
Explanation.
As shown in Figure 1, the sintering waste heat generating be segmented hot air circulating system, including waste heat boiler 1, sintering circular-cooler 13,
Circulating fan 2 and cooling blower 10；Wherein, sintering circular-cooler includes ring cold machine high temperature section 4 and ring cold machine low-temperature zone 12.
Gas collection bellows 11, outlet and the gas collection below ring cold machine high temperature section of waste heat boiler are equipped with below ring cold machine high temperature section
It is connected between bellows by backwind tube 3, circulating fan 2 is located on backwind tube 3.Gas collection bellows are equipped with below ring cold machine low-temperature zone,
Cooling blower is connected with the gas collection bellows below ring cold machine low-temperature zone, and cooling blower 10 is blown into air.Gas collection bellows collect circulation
The cooling wind that wind turbine, cooling blower are sent into；Outer row's sinter granule dust.
Ring cold machine high temperature section 4 is accepted, conveys the high temperature sinter that sintering machine is fallen into, and assembles heat of high temperature；High temperature air inlet cigarette
Pipe is used for collecting, conveys the next high-temperature flue gas of ring cold machine high temperature section to waste heat boiler high temperature air inlet side.Ring cold machine low-temperature zone 12 passes
The sinter that defeated ring cold machine high temperature section is come, assembles low-temperature heat quantity；Low temperature air inlet smoke pipe is used for collecting, conveys ring cold machine low-temperature zone
High-temperature flue gas to waste heat boiler low temperature air inlet side.
Ring cold machine high temperature section 4 is connected by high temperature air inlet smoke pipe 5 with the high temperature air inlet side of waste heat boiler, ring cold machine low-temperature zone
12 are connected by low temperature air inlet smoke pipe 9 with the low temperature air inlet side of waste heat boiler.
High temperature air inlet smoke pipe is equipped with deduster, it is preferred that deduster is gravitational precipitator 8.Received by gravitational precipitator
Dust in collection, discharge high temperature air inlet smoke pipe, prevents from blocking.
Circulating fan is frequency conversion circulating fan.High and low temperature flue gas is ensured in waste heat boiler by frequency conversion circulating fan and is gone back
High and low section of cold is efficient, smooth, circulates.
Electric control valve 6 is equipped with high temperature air inlet smoke pipe and low temperature air inlet smoke pipe；Adjusted by electric control valve high and low
Warm air inlet smoke pipe flue gas flow.Emptying electricity is equipped with high temperature air inlet smoke pipe and low temperature air inlet smoke pipe in front of electric control valve
Dynamic regulating valve 7；It is to open by emptying electric control valve in abnormal condition, the emptying of high and low temperature flue gas.
Sintering waste heat generating segmentation hot air circulating system uses and its method of adjustment is as follows：
Sintering circular-cooler is rotated by Fig. 1 directions of arrow.
Cooling blower and circulating fan are opened, and electric control valve is shown in a fully open operation, and emptying electric control valve, which is in, to close
Closed state；Flue gas after residual heat boiler for exchanging heat is sent into ring cold machine high temperature section heat exchange high temperature sinter by circulating fan, keeps changing
After heat there is higher temperature flue gas to be sent into waste heat boiler high temperature air inlet side through dedusting；Air is low into ring cold machine by cooling blower
Temperature section, flue gas heat exchange low temperature sintering ore deposit, the flue gas after heating are delivered to waste heat boiler low temperature air inlet by low temperature air inlet smoke pipe
Side；High temperature air inlet side is finally converged with low temperature air inlet side flue gas in waste heat boiler, and flue gas recirculation is realized by circulating fan；
When sintering circular-cooler yield and temperature fluctuation, protected by adjusting circulating fan rotating speed, motorized adjustment valve opening means control air quantity
Hold high temperature air inlet side flue-gas temperature.
The objective of such a operating method is that high temperature is mining, and high-temperature flue gas carries out circulating cooling, and middle low temperature mining air carries out
Cooling, one improves high-temperature flue-gas, and two prevent sintering high temperature ore deposit low temperature sudden cold, cause sintering ore pulverization.
Since sintering circular-cooler lower part air leak rate of air curtain is more than 30%, is supplemented by cooling blower, realize flue gas recirculation
System flue gas balances.
The system realizes that flue gas system is segmented complete alternation, improves waste heat recovery effect.It is segmented the collection such as hot air circulating system
It is applied successfully into technology in sintering waste heat generating system.Circulating fan outlet pressure is reduced to about 500Pa by more than 5000Pa；
Return air temperature brings up to more than 120 DEG C by environment temperature, and high temperature section flue-gas temperature lifts about 50 DEG C.
Sintering waste heat generating system generated energy less than 200,000 kWh by bringing up to 350,000 more than kWh daily, average generated output
By being lifted less than 12Mw liftings to more than 15Mw (up to more than 18Mw) and stability, power supply rate less than 70% by bringing up to
More than 80%, ton ore deposit generated energy is lifted to more than 18kWh degree by about 12kWh, about 18,000,000 yuan of year benefit increase.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements and from aforesaid way
Limitation, as long as employ the present invention design and technical solution carry out various unsubstantialities improvement, or it is not improved will
The design and technical solution of the present invention directly applies to other occasions, within protection scope of the present invention.
Claims (8)
1. a kind of sintering waste heat generating segmentation hot air circulating system, including waste heat boiler and sintering circular-cooler, the sintered ring are cold
Machine includes ring cold machine high temperature section and ring cold machine low-temperature zone, it is characterised in that：Further include circulating fan and cooling blower, the waste heat
The outlet of boiler is connected with circulating fan, and circulating fan is connected with ring cold machine high temperature section, cooling blower and ring cold machine low-temperature zone phase
Even, the ring cold machine high temperature section is connected by high temperature air inlet smoke pipe with the high temperature air inlet side of waste heat boiler, the ring cold machine low temperature
Section is connected by low temperature air inlet smoke pipe with the low temperature air inlet side of waste heat boiler.
2. sintering waste heat generating as claimed in claim 1 is segmented hot air circulating system, it is characterised in that：The high temperature air inlet smoke pipe
It is equipped with deduster.
3. sintering waste heat generating as claimed in claim 1 is segmented hot air circulating system, it is characterised in that：The ring cold machine high temperature section
Lower part and the lower part of ring cold machine low-temperature zone be equipped with gas collection bellows.
4. sintering waste heat generating as claimed in claim 1 is segmented hot air circulating system, it is characterised in that：The high temperature air inlet smoke pipe
Electric control valve is equipped with low temperature air inlet smoke pipe.
5. sintering waste heat generating as claimed in claim 1 is segmented hot air circulating system, it is characterised in that：The circulating fan is change
Frequency circulating fan.
6. sintering waste heat generating as claimed in claim 2 is segmented hot air circulating system, it is characterised in that：The deduster is gravity
Deduster.
7. sintering waste heat generating as claimed in claim 4 is segmented hot air circulating system, it is characterised in that：The high temperature air inlet smoke pipe
Emptying electric control valve is equipped with being located on low temperature air inlet smoke pipe in front of electric control valve.
8. a kind of method of adjustment to the sintering waste heat generating segmentation hot air circulating system as described in any one of claim 1 to 7, its
It is characterized in that：The method of adjustment comprises the following steps；
(1) cooling blower and circulating fan are opened, and electric control valve is shown in a fully open operation, and emptying electric control valve, which is in, closes
State；
(2) flue gas after residual heat boiler for exchanging heat is sent into ring cold machine high temperature section heat exchange high temperature sinter by circulating fan, keeps changing
After heat there is higher temperature flue gas to be sent into waste heat boiler high temperature air inlet side through dedusting；
(3) air enters ring cold machine low-temperature zone, flue gas heat exchange low temperature sintering ore deposit by cooling blower, and the flue gas after heating passes through
Low temperature air inlet smoke pipe is delivered to waste heat boiler low temperature air inlet side；
(4) high temperature air inlet side is finally converged with low temperature air inlet side flue gas in waste heat boiler, realizes that flue gas follows by circulating fan
Ring；In sintering circular-cooler yield and temperature fluctuation, by adjusting circulating fan rotating speed, motorized adjustment valve opening means control wind
Amount keeps high temperature air inlet side flue-gas temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711268210.9A CN108036652A (en) | 2017-12-05 | 2017-12-05 | Sintering waste heat generating is segmented hot air circulating system and its method of adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711268210.9A CN108036652A (en) | 2017-12-05 | 2017-12-05 | Sintering waste heat generating is segmented hot air circulating system and its method of adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108036652A true CN108036652A (en) | 2018-05-15 |
Family
ID=62095323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711268210.9A Pending CN108036652A (en) | 2017-12-05 | 2017-12-05 | Sintering waste heat generating is segmented hot air circulating system and its method of adjustment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108036652A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110159451A (en) * | 2019-03-08 | 2019-08-23 | 东方宏海新能源科技发展有限公司 | A kind of industrial furnace residual heat utilizes Stirling electricity generation system |
| CN110608618A (en) * | 2019-10-14 | 2019-12-24 | 中国科学院过程工程研究所 | External support type sintering flue gas circulation sealing device and stacking method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655319A (en) * | 2009-04-13 | 2010-02-24 | 浙江西子联合工程有限公司 | System for regulating and optimizing smoke by power generation and recycle of residual heat of sintering ring cold machine |
| CN102072663A (en) * | 2011-02-10 | 2011-05-25 | 孙慕文 | System for recovering waste heat in sintering process |
| CN204063985U (en) * | 2014-07-08 | 2014-12-31 | 中冶北方（大连）工程技术有限公司 | Sintering circular-cooler waste-heat recovery device |
-
2017
- 2017-12-05 CN CN201711268210.9A patent/CN108036652A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655319A (en) * | 2009-04-13 | 2010-02-24 | 浙江西子联合工程有限公司 | System for regulating and optimizing smoke by power generation and recycle of residual heat of sintering ring cold machine |
| CN102072663A (en) * | 2011-02-10 | 2011-05-25 | 孙慕文 | System for recovering waste heat in sintering process |
| CN204063985U (en) * | 2014-07-08 | 2014-12-31 | 中冶北方（大连）工程技术有限公司 | Sintering circular-cooler waste-heat recovery device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110159451A (en) * | 2019-03-08 | 2019-08-23 | 东方宏海新能源科技发展有限公司 | A kind of industrial furnace residual heat utilizes Stirling electricity generation system |
| CN110608618A (en) * | 2019-10-14 | 2019-12-24 | 中国科学院过程工程研究所 | External support type sintering flue gas circulation sealing device and stacking method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101655319B (en) | System for regulating and optimizing smoke by power generation and recycle of residual heat of sintering ring cold machine | |
| CN108036652A (en) | Sintering waste heat generating is segmented hot air circulating system and its method of adjustment | |
| CN105910450B (en) | Sintering circular-cooler waste gas residual heat recycling system | |
| CN206683423U (en) | A kind of sintering circular-cooler flue gas waste heat utilization device | |
| CN205561546U (en) | Be used for high -efficient recycle system of sintering deposit cooling and sensible heat | |
| CN103615909A (en) | Hot air circulation sintering and sintering double-pressure waste heat utilizing system and method | |
| CN108827005B (en) | Vertical tank and boiler integrated device for recovering waste heat of sinter | |
| CN102304595B (en) | Top gas pressure recovery turbine generating system | |
| CN212482146U (en) | Waste gas waste heat utilization device of mineral powder vertical mill system | |
| CN207331009U (en) | A kind of quick lime feed opening dust-extraction unit | |
| CN212902689U (en) | Novel leakage self-checking and adjustable hot surface vertical cooling kiln waste heat boiler | |
| CN201397054Y (en) | Sintering circular cooler waste heat generation circulation smoke optimizing and adjusting system | |
| CN104359223B (en) | System and method using exhaust steam in steam turbine as steam air heater of utility boiler thermal medium | |
| CN206425108U (en) | A kind of high-temperature flue gas multi-cyclone dedusting cooler | |
| CN207247253U (en) | Lack of gas heat primary air heat exchanger system for ball mill pulverized coal carried by hot air system | |
| CN108592646A (en) | A kind of sintering waste heat generating system waste-heat recovery device and application method | |
| CN212284254U (en) | System for preheating cold air required by combustion of hot blast stove by waste heat of slag vertical mill | |
| CN206001926U (en) | A kind of device of utilization applied to pelletizing rotary kiln tail flue gas waste heat | |
| CN210886094U (en) | Ou ye furnace roof coal gas cooling waste heat recovery device | |
| CN206488639U (en) | Clinker line grate-cooler hot blast regulating system | |
| CN201003907Y (en) | A residual power generation system for novel dry cement product line | |
| CN110628978B (en) | Europeanism top gas cooling waste heat recovery device | |
| CN209877658U (en) | Waste heat efficient recovery and comprehensive utilization system of rotary vertical type cooler for sintered ore | |
| CN201475974U (en) | Smoke radiation baffle plate in special-purpose exhaust-heat boiler of rotary furnace | |
| CN207990606U (en) | A kind of boiler is for exhaust system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 243003 8 Jiuhua Road, Yushan, Ma'anshan, Anhui Applicant after: Ma'anshan Iron and Steel Co., Ltd. Address before: 243003 intellectual property department, technology center, No. 8 Hunan West Road, Yushan, Ma'anshan, Anhui Applicant before: Ma'anshan Iron and Steel Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180515 |
|
| RJ01 | Rejection of invention patent application after publication |