CN103939160A - Device and method for recycling waste heat of hot rolled strips off line - Google Patents
Device and method for recycling waste heat of hot rolled strips off line Download PDFInfo
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- CN103939160A CN103939160A CN201410119702.1A CN201410119702A CN103939160A CN 103939160 A CN103939160 A CN 103939160A CN 201410119702 A CN201410119702 A CN 201410119702A CN 103939160 A CN103939160 A CN 103939160A
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Abstract
The invention relates to a device for recycling waste heat of hot rolled strips off line. The waste heat of the hot rolled strips is recycled off line through the device composed of a coil unloading crane, an operation system, a coil collecting crane, a circulating air system, a heat exchange chamber and a heat exchanger. Hot rolled coils are placed on a coil bearing trolley through the coil unloading crane, the coil bearing trolley is driven by a transmission system to move forwards on a motion track, when the coil bearing trolley passes the heat exchange chamber, heat of the hot rolled coils is brought to a hot air branch pipeline through a fan and collected to a hot air main, the heat enters the heat exchanger after dust is filtered out through a dust remover, and saturated steam is generated and conveyed to a generator unit for power generation or other uses; the air passing through the heat exchanger is conveyed to the bottom of the heat exchange chamber for cyclic utilization through a circulating air returning blowing pipeline. The device has the advantages that the quality of hot rolled strip products can be improved, the waste heat of the hot rolled strips is effectively recycled, cyclic utilization of energy is achieved, resource waste is avoided, the environment is protected, and transportation and storage pressure of the hot rolled strips further can be relieved.
Description
Technical field
The present invention relates to the device and method that a kind of off-line reclaims hot-strip waste heat, relate in particular to a kind of device and method of the off-line recovery hot-strip waste heat after hot-strip batches.
Background technique
The hot-strip of metallurgy industry, is mostly after coiling machine is rolled into the roll coil of strip, to naturally cool to normal temperature at present.Belt steel thickness and the width of each manufacturer production are different, and the temperature during still through coiling machine is all at 500-700 DEG C, and after coiling machine batches, the temperature of the finished product roll coil of strip also will be at 450-650 DEG C.So the band coil of strip of high-temperature can not direct marketing, and near being transported to special vehicle, storage location could externally be sold after naturally cooling.So just produce such problem, after just having batched, contain a large amount of heat with steel, cooling under nature, heat is all dispersed in air, thermal waste.And the naturally cooling time also reaches 24 hours.Meanwhile, the naturally cooling rear interior tissue with steel is inhomogeneous, the intensity of impact with steel.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of this invention is to provide a kind of device and method of off-line recovery hot-strip waste heat, effectively reclaim hot-strip waste heat, improve strip quality.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of off-line reclaims the device of hot-strip waste heat, comprise unloading and roll heavy-duty machine, operational system, rolling hoist, wind circulating system, heat exchanger, heat exchanger, operational system is provided with heat exchanger, operational system one end is provided with to unload rolls heavy-duty machine, the other end is provided with rolling hoist, wind circulating system is connected with heat exchanger, and wind circulating system is connected with generator set by heat exchanger;
Operational system by orbit, hold volume dolly, transmission system and form, hold volume dolly and drive on orbit and move by transmission system;
Wind circulating system is made up of hot-blast main, hot blast lateral, blower fan, deduster, circulating wind Returning pipe, some hot blast laterals one end is connected with heat exchanger, the other end is connected with hot-blast main, hot-blast main is connected with heat exchanger, hot-blast main is upper is provided with deduster near heat exchanger place, circulating wind Returning pipe one end is connected with heat exchanger, and the other end is connected with heat exchanger bottom, and described circulating wind Returning pipe is provided with circulating fan;
Heat exchanger is by steel plate, and refractory material, blowing pipeline form, and refractory material is arranged on heat exchanger inwall, and refractory material is outside with steel plate, and blowing pipeline is arranged on heat exchanger bottom.
Described orbit is ring track.
Described track is made up of the track that advances, return trajectory parallel to each other, and return trajectory is connected by dolly Traverse Displacement Unit with the track that advances.
Off-line reclaims a method for hot-strip waste heat, comprises the following steps:
1) torrid zone volume is rolled heavy-duty machine and is placed on and holds on volume dolly by unloading, holding volume dolly is driven and is advanced on orbit by transmission system, during through heat exchanger, bring the heat of coil of strip into hot blast lateral by blower fan, gather to hot-blast main, after the dedusting of deduster, enter heat exchanger, produce saturated vapor; Wind after exchanger returns to blowing pipeline by circulating wind and delivers to heat exchanger bottom cycle and utilize;
2) saturated vapor forming after over-heat-exchanger is processed, is transported to generator set generating or other purposes;
3) sling and transport by rolling hoist through the cooling coil of strip of heat exchanger.
Compared with prior art, the invention has the beneficial effects as follows:
Can make hot-strip quality of product get a promotion, effectively reclaim hot-strip waste heat, realize recycling of the energy, avoid the wasting of resources, protection of the environment, can also reduce hot strip steel transport and storage pressure.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is structural representation of the present invention (ring track).
Fig. 3 is the structural representation of heat exchanger.
In figure: 1-unloads and rolls heavy-duty machine 2-and hold volume dolly 3-transmission system 4-orbit 5-heat exchanger 6-hot blast lateral 7-rolling hoist 8-dolly retrieval system 9-hot-blast main 10-deduster 11-heat exchanger 12-circulating fan 13-circulating wind Returning pipe 14-generator set.
Embodiment
Below in conjunction with Figure of description, the present invention is described in detail, but should be noted that enforcement of the present invention is not limited to following mode of execution.
See Fig. 1-Fig. 3, a kind of off-line reclaims the device of hot-strip waste heat, comprise unloading and roll heavy-duty machine 1, operational system, rolling hoist 7, wind circulating system, heat exchanger 5, heat exchanger 11, operational system is provided with heat exchanger 5, operational system one end is provided with to unload rolls heavy-duty machine 1, the other end is provided with rolling hoist 7, and wind circulating system is connected with heat exchanger 5, and wind circulating system is connected with generator set 14 by heat exchanger 11;
Operational system by orbit 4, hold volume dolly 2, transmission system 3 and form, hold volume dolly 2 and drive operation on orbit 4 by transmission system 3;
Wind circulating system is made up of hot-blast main 9, hot blast lateral 6, blower fan, deduster 10, circulating wind Returning pipe 13, some hot blast laterals 6 one end are connected with heat exchanger 5, the other end is connected with hot-blast main 9, hot-blast main 9 is connected with heat exchanger 11, on hot-blast main 9, be provided with deduster 10 near heat exchanger 11 places, circulating wind Returning pipe 13 one end are connected with heat exchanger 11, and the other end is connected with heat exchanger 5 bottoms, and described circulating wind Returning pipe 13 is provided with circulating fan 12;
Heat exchanger 5 is by steel plate, and refractory material, blowing pipeline form, and refractory material is arranged on heat exchanger 5 inwalls, and refractory material is outside with steel plate, and blowing pipeline is arranged on heat exchanger 5 bottoms.
Described orbit 4 is ring track.
Described track is made up of the track that advances, return trajectory parallel to each other, and return trajectory is connected by dolly Traverse Displacement Unit with the track that advances.
Off-line reclaims the method for hot-strip waste heat, comprises the following steps:
1) torrid zone volume is rolled heavy-duty machine 1 and is placed on and holds on volume dolly 2 by unloading, holding volume dolly 2 is driven on orbit 4 and is advanced by transmission system 3, during through heat exchanger 5, bring the heat of coil of strip into hot blast lateral 6 by blower fan, gather to hot-blast main 9, after the dedusting of deduster 10, enter heat exchanger 11, produce saturated vapor; Wind after exchanger returns to blowing pipeline by circulating wind and delivers to heat exchanger 5 bottom cycle and utilize;
2) saturated vapor forming after over-heat-exchanger 11 is processed, is transported to that generator set 14 generates electricity or other purposes;
3) sling and transport by rolling hoist 7 through the cooling coil of strip of heat exchanger 5.
Generator set 14 is made up of steam turbine and steam turbine supplementary equipment, generator and supplementary equipment.Normally work for realizing said system, also need supporting facility, supply water as required, the system such as electric, instrument, automation.When a whole set of unit operation, the travelling car of loading onto torrid zone volume moves on orbit 4, during through hot air chamber, wind by bottom is brought hot air duct into the heat of torrid zone volume, by heat exchanger 11, the water of pipeline the inside is heated into saturated vapor, generates electricity or for other purposes by generator set 14.
In the time adopting two-way track, need to set up dolly retrieval system 8, the auxiliary volume dolly 2 that holds is got back to initial position smoothly, dolly retrieval system 8 mainly by returning to transmission system 3, dolly Traverse Displacement Unit forms, in the time holding volume dolly 2 and arrive the afterbody of the track that advances, be drawn on return trajectory by dolly Traverse Displacement Unit, then by return transmission system 3 drive realize hold volume dolly 2 on return trajectory, move, until return to initial position; In the time adopting ring track, without dolly retrieval system 8, hold volume dolly 2 and can return to initial position along ring track.
The present invention can make hot-strip quality of product get a promotion, and effectively reclaims hot-strip waste heat, has realized recycling of the energy, avoids the wasting of resources, and protection of the environment can also reduce hot strip steel transport and storage pressure.
Claims (4)
1. the device of an off-line recovery hot-strip waste heat, it is characterized in that, comprise unloading and roll heavy-duty machine, operational system, rolling hoist, wind circulating system, heat exchanger, heat exchanger, operational system is provided with heat exchanger, operational system one end is provided with to unload rolls heavy-duty machine, the other end is provided with rolling hoist, and wind circulating system is connected with heat exchanger, and wind circulating system is connected with generator set by heat exchanger;
Operational system by orbit, hold volume dolly, transmission system and form, hold volume dolly and drive on orbit and move by transmission system;
Wind circulating system is made up of hot-blast main, hot blast lateral, blower fan, deduster, circulating wind Returning pipe, some hot blast laterals one end is connected with heat exchanger, the other end is connected with hot-blast main, hot-blast main is connected with heat exchanger, hot-blast main is upper is provided with deduster near heat exchanger place, circulating wind Returning pipe one end is connected with heat exchanger, and the other end is connected with heat exchanger bottom, and described circulating wind Returning pipe is provided with circulating fan;
Heat exchanger is by steel plate, and refractory material, blowing pipeline form, and refractory material is arranged on heat exchanger inwall, and refractory material is outside with steel plate, and blowing pipeline is arranged on heat exchanger bottom.
2. a kind of off-line according to claim 1 reclaims the device of hot-strip waste heat, it is characterized in that, described orbit is ring track.
3. a kind of off-line according to claim 1 reclaims the device of hot-strip waste heat, it is characterized in that, described track is made up of the track that advances, return trajectory parallel to each other, and return trajectory is connected by dolly Traverse Displacement Unit with the track that advances.
4. a kind of off-line that utilizes the device described in claim 1 to realize reclaims the method for hot-strip waste heat, it is characterized in that, comprises the following steps:
1) torrid zone volume is rolled heavy-duty machine and is placed on and holds on volume dolly by unloading, holding volume dolly is driven and is advanced on orbit by transmission system, during through heat exchanger, bring the heat of coil of strip into hot blast lateral by blower fan, gather to hot-blast main, after the dedusting of deduster, enter heat exchanger, produce saturated vapor; Wind after exchanger returns to blowing pipeline by circulating wind and delivers to heat exchanger bottom cycle and utilize;
2) saturated vapor forming after over-heat-exchanger is processed, is transported to generator set generating or other purposes;
3) sling and transport by rolling hoist through the cooling coil of strip of heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410119702.1A CN103939160A (en) | 2014-03-27 | 2014-03-27 | Device and method for recycling waste heat of hot rolled strips off line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410119702.1A CN103939160A (en) | 2014-03-27 | 2014-03-27 | Device and method for recycling waste heat of hot rolled strips off line |
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| CN103939160A true CN103939160A (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410119702.1A Pending CN103939160A (en) | 2014-03-27 | 2014-03-27 | Device and method for recycling waste heat of hot rolled strips off line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384195A (en) * | 2014-12-05 | 2015-03-04 | 常州市武进广宇花辊机械有限公司 | Hot rolling mill with waste heat recycling function |
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|---|---|---|---|---|
| JPS61213329A (en) * | 1985-03-16 | 1986-09-22 | Nippon Steel Corp | Method for recovering waste heat in sintering installation |
| JPS6338609B2 (en) * | 1983-05-16 | 1988-08-01 | Kawasaki Steel Co | |
| JPH0792349B2 (en) * | 1990-11-13 | 1995-10-09 | 新日本製鐵株式会社 | Exhaust heat recovery method of sintering machine |
| CN101576244A (en) * | 2009-06-16 | 2009-11-11 | 张戈 | Process and device for recovering waste heat from hot rolled steel |
| CN201678239U (en) * | 2009-12-28 | 2010-12-22 | 中冶南方工程技术有限公司 | Conveying device for hot rolled or cold rolled steel coils |
| CN202133300U (en) * | 2011-05-13 | 2012-02-01 | 鞍钢股份有限公司 | Device for utilizing waste heat of steel coils in hot-rolled finished product warehouse |
| CN202346262U (en) * | 2011-10-28 | 2012-07-25 | 中色科技股份有限公司 | Trolley transporting system for transporting unloaded hot roll into high rack warehouse |
| CN102816906A (en) * | 2011-06-07 | 2012-12-12 | 宁波保税区天扬机械电子科技有限公司 | Steel product cooling and residual heat recovering apparatus |
| CN103010688A (en) * | 2012-11-29 | 2013-04-03 | 一重集团大连设计研究院有限公司 | Trolley type steel coil transport system |
| CN203847189U (en) * | 2014-03-27 | 2014-09-24 | 鞍山千钢机械制造有限公司 | Device for recovering hot rolled strip steel waste heat offline |
-
2014
- 2014-03-27 CN CN201410119702.1A patent/CN103939160A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6338609B2 (en) * | 1983-05-16 | 1988-08-01 | Kawasaki Steel Co | |
| JPS61213329A (en) * | 1985-03-16 | 1986-09-22 | Nippon Steel Corp | Method for recovering waste heat in sintering installation |
| JPH0792349B2 (en) * | 1990-11-13 | 1995-10-09 | 新日本製鐵株式会社 | Exhaust heat recovery method of sintering machine |
| CN101576244A (en) * | 2009-06-16 | 2009-11-11 | 张戈 | Process and device for recovering waste heat from hot rolled steel |
| CN201678239U (en) * | 2009-12-28 | 2010-12-22 | 中冶南方工程技术有限公司 | Conveying device for hot rolled or cold rolled steel coils |
| CN202133300U (en) * | 2011-05-13 | 2012-02-01 | 鞍钢股份有限公司 | Device for utilizing waste heat of steel coils in hot-rolled finished product warehouse |
| CN102816906A (en) * | 2011-06-07 | 2012-12-12 | 宁波保税区天扬机械电子科技有限公司 | Steel product cooling and residual heat recovering apparatus |
| CN202346262U (en) * | 2011-10-28 | 2012-07-25 | 中色科技股份有限公司 | Trolley transporting system for transporting unloaded hot roll into high rack warehouse |
| CN103010688A (en) * | 2012-11-29 | 2013-04-03 | 一重集团大连设计研究院有限公司 | Trolley type steel coil transport system |
| CN203847189U (en) * | 2014-03-27 | 2014-09-24 | 鞍山千钢机械制造有限公司 | Device for recovering hot rolled strip steel waste heat offline |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384195A (en) * | 2014-12-05 | 2015-03-04 | 常州市武进广宇花辊机械有限公司 | Hot rolling mill with waste heat recycling function |
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Application publication date: 20140723 |