CN205066485U - Big flue waste heat recovery of external sintering machine utilizes system - Google Patents
Big flue waste heat recovery of external sintering machine utilizes system Download PDFInfo
- Publication number
- CN205066485U CN205066485U CN201520817663.2U CN201520817663U CN205066485U CN 205066485 U CN205066485 U CN 205066485U CN 201520817663 U CN201520817663 U CN 201520817663U CN 205066485 U CN205066485 U CN 205066485U
- Authority
- CN
- China
- Prior art keywords
- cigarette
- waste heat
- sintering machine
- large flue
- house steward
- 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.)
- Expired - Fee Related
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
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to a big flue waste heat recovery of external sintering machine utilizes system belongs to steel industry sintering machine waste heat recovery field. On two big flues that sintering machine afterbody bellows link to ally oneself with exhaust -heat boiler, the mode is: connect out respectively on two big flues and get the cigarette branch pipe more than two the tunnel, respectively get the cigarette branch pipe and all compile on one gets the cigarette house steward, get the air intake that the cigarette house steward was connected to exhaust -heat boiler, equally, connect a cigarette house steward at exhaust -heat boiler's air outlet, divide the expenditure two tunnel times cigarette branch pipes by returning the cigarette house steward, two tunnel times cigarette branch pipes carry out the flue gas and retrieve on receiving two big flues more respectively. According to the utility model discloses, the flue -gas temperature can reach 350 DEG C -400 DEG C in the high temperature flue gas of usable 4-5 the last bellows positions of sintering machine tail of exhaust -heat boiler, bellows. Through the external exhaust -heat boiler after, the export flue -gas temperature can drop to 150-180 DEG C, heat energy in can the big flue flue gas of effectual utilization.
Description
Technical field
The utility model belongs to steel industry sintering machine heat recovery technical field, particularly for 180m
2the flue residue heat recycling system of above medium-and-large-sized sintering machine.
Background technology
According to statistics, the existing sintering machine of China about 500, wherein 180 ~ 660m
2sintering machine about 125, its sintering area about reaches 39000m
2.Sintering deposit is the primary raw material of blast fumance; current China Sintering Yield is huge; energy resource consumption is also very large; sintering plant revamp accounts for 8.3% of iron and steel production total energy consumption; be only second to ironmaking; be the second largest big power consumer that iron and steel is produced, therefore reclaim waste heat in sintering machine large flue and not only there is larger economic benefit, simultaneously to economize on resources and protection of the environment also can play a positive role.
The sintering machine large flue waste heat recovery of present China mainly adopts built-in way of recycling system, but because built-in system cannot cut out from sintering system, there is difficulty in maintenance, simultaneously because boiler is arranged in large flue, there is more potential safety hazard, so many enterprises do not recycle the waste heat in using smoke from big gas duct; External waste heat boiler way of recycling at home at several large iron and steel enterprise in utilization, but this waste heat recovery scheme is difficult to reach rated output, simultaneously easily has an impact to SINTERING PRODUCTION.
Utility model content
For present Problems existing, the purpose of this utility model is to provide a kind of Novel external sintering machine large flue waste heat recycling system.In conjunction with SINTERING PRODUCTION technique and principle, have employed multipoint mode and get cigarette scheme, each branch road is provided with opening angle adjustable valve, the effective regulation and control input gas temperature of this mode energy and smoke which, and do not affect normal sintering.
The purpose of this utility model is mainly achieved through the following technical solutions: a kind of external sintering machine large flue waste heat recycling system, it is characterized in that: refer on the connected large flue of sintering machine wind box, pick out more than two-way and get cigarette pipe, get cigarette manifold described in each to combine in one and get cigarette house steward, described in get the air inlet that cigarette house steward is connected to waste heat boiler;
The air outlet of described waste heat boiler connects one end of a cigarette house steward, and the other end of described time cigarette house steward separates two-way and returns cigarette pipe, and the other end that two-way returns cigarette pipe is connected on described large flue;
By getting cigarette pipe, get cigarette house steward, return cigarette house steward, returning cigarette pipe, that waste heat boiler and described large flue are formed external is in parallel.
Further:
Described large flue has two, is parallel connection, is all connected with sintering machine wind box; Article two, described large flue picks out separately more than two-way and get cigarette pipe, also cigarette pipe is returned on tieback one tunnel separately.
Ventilation shaft between described bellows and large flue is provided with air-quantity adjusting valve.
Allly get cigarette pipe, take the length of 4 ~ 5 bellows bottom large flues.
Respectively getting on cigarette pipe, be respectively arranged with smoke regulating valve door.
Get on cigarette house steward described, be provided with smoke regulating valve door.
On each time cigarette pipe, be respectively arranged with smoke regulating valve door.
Returning on cigarette house steward, be provided with smoke regulating valve door.
On the air outlet of waste heat boiler, an air-introduced machine is set, after air-introduced machine, connects described time cigarette house steward.
Waste heat boiler is finned or heat pipe waste heat boiler.
The utility model have employed multipoint mode and gets cigarette scheme, and these are different from existing all large flue waste heat recovery modes.And each cigarette pipe of getting is with on time cigarette pipe, and gets cigarette house steward and return on cigarette house steward, being all provided with opening angle adjustable valve, this mode energy effectively regulation and control input gas temperature and smoke which, and not affecting normal sintering.The utility model have employed the independent opening angle adjustable of two-way and returns cigarette pipe, can balance large flue air quantity.According to the utility model, waste heat boiler can utilize the high-temperature flue gas of last 4 ~ 5 the bellows positions of rear of sintering machine, and in bellows, flue-gas temperature can reach 350 DEG C ~ 400 DEG C.Smoke temperature at outlet of waste heat boiler can drop to 150 ~ 180 DEG C, effectively can utilize the heat energy in using smoke from big gas duct.
Other feature and advantage of the present utility model will be set forth in the following description or understand by implementing the utility model.
Accompanying drawing explanation
Accompanying drawing only for illustrating the object of specific embodiment, and is not thought restriction of the present utility model, and in whole accompanying drawing, identical reference symbol represents identical parts.
Fig. 1 is structural representation of the present utility model.
Number in the figure: 1 a, large flue; 2, No. two large flues; 3, cigarette pipe is got; 4, smoke regulating valve door; 5, cigarette house steward is got; 6, air-introduced machine; 7, cigarette house steward is returned; 8, cigarette pipe is returned; 9, bellows; 10, air-quantity adjusting valve; 11, waste heat boiler.
Detailed description of the invention
Specifically describe preferred embodiment of the present utility model below in conjunction with accompanying drawing, wherein, accompanying drawing forms the application's part, and is used from embodiment one of the present utility model and explains principle of the present utility model.
A kind of external sintering machine large flue waste heat recycling system that the utility model provides, refer to this recovery system it is be arranged at by sintering machine large flue, be communicated with in outside with large flue, instead of be arranged at inside large flue, these are different from existing built-in flue residue heat way of recycling.Large flue described in the application's (comprising in claims), only in industry to the popular call of sintering machine flue, and be not requirement to flue size being made restriction, do not need in the utility model yet restriction, so so-called size is only comparatively speaking.
Originally rear of sintering machine is provided with multiple bellows 9, has 7 bellows as shown in FIG.; In one embodiment, these bellows are all connected respectively on two large flues by two ventilation shafts, a large flue 1 and No. two large flues 2, are imported in large flue by the heat smoke that sintering furnace machine produces.Further, two ventilation shafts all can arrange air-quantity adjusting valve 10, the exhaust gas volumn of being discharged by sintering machine can be controlled.The utility model designed system is connected to outside two large flues, and have employed multipoint mode and get cigarette scheme, and these are also different from existing flue residue heat way of recycling.So-called multipoint mode gets cigarette, refer on two large flue-No. mono-large flues 1 and No. two large flues 2, or be also like this on a large flue, multichannel be set respectively and get cigarette pipe 3 (more than two-way), approximately take the length of two large flues in 4 ~ 5 bellows bottoms.Every bar large flue all connects a few road and gets cigarette pipe 3 (at least more than two-way), and further, gets on cigarette pipe 3 be also respectively arranged with smoke regulating valve door 4 on each road.The valve that aperture is adjustable, this can control separately respectively to get cigarette pipe getting smoke which and controlling input gas temperature each section of large flue, and does not affect normal sintering, when do not need from get cigarette pipe 3 get cigarette time, can by valve closing, sinter fume directly flows away from large flue.
Get smoke pipeline not only to comprise above-mentioned multichannel and get cigarette pipe 3, also comprise a road and get cigarette house steward 5.In order to realize the heating to waste heat boiler 11, each road is got cigarette pipe 3 and is pooled to and gets on cigarette house steward 5, gets cigarette house steward 5 and is connected on waste heat boiler 11 air inlet, realize the heating object to boiler.Further, the pipeline getting cigarette house steward 5 is also provided with smoke regulating valve door 4.Equally, this opening angle adjustable valve, not only can produce waste heat boiler and regulate, simultaneously when large flue temperature fluctuation, can play regulating action to large flue temperature; When boiler needs maintenance, sintering waste heat feed system can be cut off, and not affect SINTERING PRODUCTION.
On the air outlet of waste heat boiler, an air-introduced machine 6 is set, connects a cigarette house steward 7 through air-introduced machine 6.Further, the pipeline returning cigarette house steward 7 is also provided with smoke regulating valve door 4.This opening angle adjustable valve, has same effect with smoke regulating valve door 4 on the pipeline getting cigarette house steward 5, passes in and out two directions and all arrange air valve, not only can produce waste heat boiler and regulate, when boiler needs maintenance, by the supply of cut-out waste heat, and SINTERING PRODUCTION can not affected; Simultaneously when large flue temperature fluctuation, regulating action can be played to large flue temperature.
Similar to getting cigarette mode, smoke-returning pipeline not only comprises house steward Lu Huiyan 7, also comprises two-way and returns cigarette pipe 8; These time cigarette pipe 8 is by going back to cigarette house steward 7 branch out, and then distribution is connected to the ventilation end of a large flue 1 and No. two large flues 2, and for disperseing smoke, two-way returns cigarette pipe, can balance large flue air quantity.Further, the pipeline of each time cigarette pipe 8 is also provided with smoke regulating valve door 4, the valve that these apertures are adjustable, with the smoke regulating valve door 4 got on cigarette pipe 3 pipeline, there is same effect.
In sum, getting cigarette pipe 3, get cigarette house steward 5, return cigarette house steward 7, returning on cigarette pipe 8, be all provided with smoke regulating valve door 4, these are arranged on the opening angle adjustable valve on pipeline at different levels, are all controlled from each rank of air inlet and each rank of return-air.This residual neat recovering system is connected in parallel on by large flue, not only can and large flue between can cut off at any time; And can control separately respectively to get cigarette pipe, return cigarette pipe and get air quantity and return air amount each section of large flue; But also the heat supply can cut off boiler, do not affect the maintenance of boiler; And when not needing to boiler heat supplying, sinter fume can directly be seen off from large flue, does not also affect the normal operation of sintering machine.Further, the utility model have employed multichannel and gets cigarette pipe and two-way returns cigarette pipe, and aperture is adjustable separately, can balance using smoke from big gas duct amount like this.
Under this kind of system situation, stop valve can not be installed in sintering machine large flue pipeline.
The configurable finned or heat pipe waste heat boiler of this system.Configuration cycles air-introduced machine 6 in system, blower fan is VFC.
Above-mentioned air-quantity adjusting valve 10 and smoke regulating valve door 4 can be the valve of one species type.
Above examples provide a kind of can the external recovery system of enough recovery sintering machine large flue waste heats; above embodiment is only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.
Claims (10)
1. an external sintering machine large flue waste heat recycling system, it is characterized in that: refer on the connected large flue of sintering machine wind box, pick out more than two-way and get cigarette pipe (3), get cigarette pipe (3) described in each to come together in one and get cigarette house steward (5), described in get the air inlet that cigarette house steward (5) is connected to waste heat boiler (11);
The air outlet of described waste heat boiler (11) connects one end of a cigarette house steward (7), the other end of described time cigarette house steward (7) separates two-way and returns cigarette pipe (8), and the other end that two-way returns cigarette pipe (8) is connected on described large flue;
By getting cigarette pipe (3), get cigarette house steward (5), return cigarette house steward (7), returning cigarette pipe (8), that waste heat boiler (11) and described large flue are formed external is in parallel.
2. external sintering machine large flue waste heat recycling system according to claim 1, is characterized in that: described large flue has two, is parallel connection, is all connected with sintering machine wind box;
Article two, described large flue picks out separately more than two-way and get cigarette pipe (3), also cigarette pipe (8) is returned on tieback one tunnel separately.
3. external sintering machine large flue waste heat recycling system according to claim 1, is characterized in that: the ventilation shaft between described bellows and large flue is provided with air-quantity adjusting valve (4).
4. external sintering machine large flue waste heat recycling system according to claim 1 and 2, is characterized in that: allly get cigarette pipe (3), takies the length of 4 ~ 5 bellows bottom large flues.
5. external sintering machine large flue waste heat recycling system according to claim 1 and 2, is characterized in that: respectively getting on cigarette pipe (3), be respectively arranged with smoke regulating valve door (4).
6. external sintering machine large flue waste heat recycling system according to claim 1, is characterized in that: get on cigarette house steward (5) described, be provided with smoke regulating valve door (4).
7. external sintering machine large flue waste heat recycling system according to claim 1 and 2, is characterized in that: on each time cigarette pipe (8), be respectively arranged with smoke regulating valve door (4).
8. external sintering machine large flue waste heat recycling system according to claim 1, is characterized in that: returning on cigarette house steward (7), be provided with smoke regulating valve door (4).
9. the external sintering machine large flue waste heat recycling system according to claim 1 or 8, it is characterized in that: on the air outlet of waste heat boiler (11), one air-introduced machine (6) is set, after air-introduced machine (6), connects described time cigarette house steward (7).
10. external sintering machine large flue waste heat recycling system according to claim 1, is characterized in that: waste heat boiler (11) is finned or heat pipe waste heat boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817663.2U CN205066485U (en) | 2015-10-21 | 2015-10-21 | Big flue waste heat recovery of external sintering machine utilizes system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817663.2U CN205066485U (en) | 2015-10-21 | 2015-10-21 | Big flue waste heat recovery of external sintering machine utilizes system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205066485U true CN205066485U (en) | 2016-03-02 |
Family
ID=55393030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520817663.2U Expired - Fee Related CN205066485U (en) | 2015-10-21 | 2015-10-21 | Big flue waste heat recovery of external sintering machine utilizes system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205066485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126359A (en) * | 2018-08-28 | 2019-01-04 | 钢研晟华科技股份有限公司 | A kind of device and method reducing Ore Sintering Process VOCs discharge |
-
2015
- 2015-10-21 CN CN201520817663.2U patent/CN205066485U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126359A (en) * | 2018-08-28 | 2019-01-04 | 钢研晟华科技股份有限公司 | A kind of device and method reducing Ore Sintering Process VOCs discharge |
| CN109126359B (en) * | 2018-08-28 | 2020-10-16 | 钢研晟华科技股份有限公司 | Device and method for reducing discharge of VOCs in iron ore sintering process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103834755A (en) | Pulverized coal preheating technique of blast furnace coal injection system | |
| CN103940213A (en) | Coke drying system dry gas temperature and flow self-adjustment control device and method | |
| CN205066485U (en) | Big flue waste heat recovery of external sintering machine utilizes system | |
| CN104232823B (en) | Hotblast stove level pressure changes stove control method | |
| CN204513372U (en) | Coal feeder for circular fluidized bed boiler | |
| CN104390472B (en) | Low temperature exhaust heat boiler is adopted to carry out hardening and tempering method and the modifying device of electric precipitation flue gas | |
| CN206005786U (en) | A kind of tea hot air supply system | |
| CN205730865U (en) | Flue gas desulphurization system | |
| CN201621973U (en) | Electric furnace flue gas waste heat recovery utilization device | |
| CN201751402U (en) | Residual-heat utilization device of float glass annealing kiln | |
| CN205402701U (en) | Quick adjustment circulating fluidized bed boiler load's device | |
| CN203159642U (en) | Air quantity regulation device of blast furnace | |
| CN206846704U (en) | A kind of coal burner cooling air system using boiler heat primary air | |
| CN203333472U (en) | Rock wool producing mechanism of cupola furnace | |
| CN102494539B (en) | Cooler cascade air supply method for residual-heat utilization | |
| CN201858902U (en) | Solid furnace smoke gas recycling system | |
| CN203295542U (en) | Pressurizing bypass device | |
| CN205090778U (en) | Air -flowing type stoving conveying system | |
| CN204872264U (en) | Take heating device's former coal bunker | |
| CN204202414U (en) | Non-ferrous metal smelting furnace residual neat recovering system | |
| CN205505691U (en) | Automatic alarm control's organic bentonite drying system | |
| CN201397026Y (en) | High-efficiency energy-saving multi-furnace drying device | |
| CN205037573U (en) | Boiler waste heat utilizing device | |
| CN202090032U (en) | Slab heating furnace | |
| CN204490910U (en) | Blast-furnace hot-air air-supply arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20211021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |