CN101899562B - Waste heat utilization steel strip heat treatment system - Google Patents
Waste heat utilization steel strip heat treatment system Download PDFInfo
- Publication number
- CN101899562B CN101899562B CN2010102303072A CN201010230307A CN101899562B CN 101899562 B CN101899562 B CN 101899562B CN 2010102303072 A CN2010102303072 A CN 2010102303072A CN 201010230307 A CN201010230307 A CN 201010230307A CN 101899562 B CN101899562 B CN 101899562B
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- China
- Prior art keywords
- water
- upper water
- steel band
- lower header
- pressing plate
- 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.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 55
- 239000010959 steel Substances 0.000 title claims abstract description 55
- 239000002918 waste heat Substances 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 title claims abstract description 17
- 238000005496 tempering Methods 0.000 claims abstract description 17
- 238000011084 recovery Methods 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 13
- 238000010791 quenching Methods 0.000 claims abstract description 11
- 230000000171 quenching effect Effects 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 81
- 238000003825 pressing Methods 0.000 claims description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 21
- 229910002804 graphite Inorganic materials 0.000 claims description 21
- 239000010439 graphite Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 11
- 230000000630 rising effect Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000007669 thermal treatment Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
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- Y02W30/54—
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- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention provides a waste heat utilization steel strip heat treatment system. The system comprises an unwinding wheel, a winding wheel and steel strips which are arranged between the unwinding wheel and the winding wheel, wherein a heating furnace and a tempering furnace which correspond to the steel strips are sequentially arranged between the unwinding wheel and the winding wheel; a quenching pressure plate is arranged between the heating furnace and the tempering furnace; a waste heat recovery pressure plate is arranged at the back of the tempering furnace; and a waste heat utilization pressure plate which corresponds to the quenching pressure plate and the waste heat recovery pressure plate are arranged in front of the heating furnace. The steel strips can be preheated by part of waste heat so as to save the heating energy of the steel strips and production cost.
Description
Technical field
The present invention relates to steel band thermal treatment field, be specifically related to a kind of UTILIZATION OF VESIDUAL HEAT IN steel band heat treatment system.
Background technology
Energy-saving and emission-reduction are long-range strategy and policy of China's economy and social development, also are very urgent task.Recovery waste heat cuts down the consumption of energy China is realized that the strategy and policy of energy-saving and emission-reduction, environmental protection development have important practical significance.Simultaneously, UTILIZATION OF VESIDUAL HEAT IN to improve working conditions, save energy, increase production, the big effect of aspect play more and more such as improve the quality of products, reduce production costs.The waste heat of steel band is meant steel band remaining heat after accomplishing Q-tempering.Behind Q-tempering, its temperature still more than 400 degree, has a large amount of waste heats to steel band when thermal treatment, more than the nearly 51KWh of the waste heat of steel band per ton, accounts for more than 45% of total energy of steel band heating.Factory with 20000 tons of steel bands of thermal treatment in 1 year is an example, and the steel band waste heat will be wasted 1,020,000 degree every year.All let its naturally cooling after the general steel band tempering, be dispersed into waste heat in the air, this not only causes the significant amount of energy waste, but also can worsen the plant produced environment.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of UTILIZATION OF VESIDUAL HEAT IN steel band heat treatment system, can be used for the preheating steel band to part of waste heat, to reduce the heat energy of steel band, reduces production costs.
For solving above-mentioned existing technical problem; The present invention adopts following scheme: a kind of UTILIZATION OF VESIDUAL HEAT IN steel band heat treatment system; Comprise hai roll wheel, winding wheel, be located at the steel band between hai roll wheel and the winding wheel; Be provided with the process furnace corresponding, tempering stove successively between said hai roll wheel and the winding wheel with steel band; Be provided with the quenching pressing plate between said process furnace and the tempering stove, said tempering stove rear portion is provided with the waste heat recovery pressing plate, and said process furnace front portion is provided with and the corresponding UTILIZATION OF VESIDUAL HEAT IN pressing plate of pressing plate and waste heat recovery pressing plate that quenches.
As preferably; Said quenching pressing plate comprises first upper water box, first lower header that is located at the steel band both sides; Said first upper water box bottom is provided with expanded graphite plate on first; The said first lower header top is provided with expanded graphite plate first time, and said first upper water box is provided with the water-in and the first upper water-out mouth on first, and said first lower header is provided with the first time water-in and first lower outlet.The good heat conduction effect of expanded graphite plate, quality is soft, can not damage steel band.
As preferably; Said waste heat recovery pressing plate comprises second upper water box, second lower header that is located at the steel band both sides; Said second upper water box bottom is provided with expanded graphite plate on second; The said second lower header top is provided with expanded graphite plate second time, and said second upper water box is provided with the water-in and the second upper water-out mouth on second, and said second lower header is provided with the second time water-in and second lower outlet.
As preferably; Said UTILIZATION OF VESIDUAL HEAT IN pressing plate comprises the 3rd upper water box, the 3rd lower header that is located at the steel band both sides; Said the 3rd upper water box bottom is provided with expanded graphite plate on the 3rd; Said the 3rd lower header top is provided with expanded graphite plate the 3rd time, and said the 3rd upper water box is provided with water-in and the 3rd upper water-out mouth on the 3rd, and said the 3rd lower header is provided with the 3rd time water-in and the 3rd lower outlet.
As preferably; Water-in, second time water-in are connected on the water inlet pipe that is provided with on water-in on said first, the first time water-in, second; Water-in, the 3rd time water-in are connected on the rising pipe that is provided with on the said first upper water-out mouth, first lower outlet, the second upper water-out mouth, second lower outlet, the 3rd; Said the 3rd upper water-out mouth, the 3rd lower outlet are connected on the return water pipe that is provided with, and said water inlet pipe is connected with the water tank that is provided with, and said return water pipe is connected with water tank.
As preferably, be provided with water pump between said water inlet pipe and the water tank.Water supply effect is good.
As preferably, be equipped with guide water board in said first upper water box, first lower header, second upper water box, second lower header, the 3rd upper water box, the 3rd lower header.Make water pass through water tank, can increase the capacity of heat transmission of water tank along the zigzag path that spirals.
Beneficial effect:
The present invention adopts technique scheme that a kind of UTILIZATION OF VESIDUAL HEAT IN steel band heat treatment system is provided, and is used for the preheating steel band to part of waste heat, has reduced the heat energy of steel band, has reduced production cost.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of quenching pressing plate among the present invention;
Fig. 3 is the structural representation of waste heat recovery pressing plate among the present invention;
Fig. 4 is the structural representation of UTILIZATION OF VESIDUAL HEAT IN pressing plate among the present invention.
Embodiment
Extremely shown in Figure 4 like Fig. 1; A kind of UTILIZATION OF VESIDUAL HEAT IN steel band heat treatment system; Comprise hai roll wheel 2, winding wheel 8, be located at the steel band 1 between hai roll wheel 2 and the winding wheel 8, said hai roll take turns 2 with winding wheel 8 between be provided with process furnace 4, the tempering stove 6 corresponding successively with steel band 1, be provided with quenching pressing plate 5 between said process furnace 4 and the tempering stove 6; Said tempering stove 6 rear portions are provided with waste heat recovery pressing plate 7, and said process furnace 4 front portions are provided with the UTILIZATION OF VESIDUAL HEAT IN pressing plate 3 corresponding with quench pressing plate 5 and waste heat recovery pressing plate 7.Said quenching pressing plate 5 comprises first upper water box 51, first lower header 52 that is located at steel band 1 both sides; Said first upper water box 51 bottoms are provided with expanded graphite plate 53 on first; Said first lower header 52 tops are provided with expanded graphite plate 54 first time; Said first upper water box 51 is provided with the water-in 55 and the first upper water-out mouth 56 on first, and said first lower header 52 is provided with the first time water-in 57 and first lower outlet 58.Said waste heat recovery pressing plate 7 comprises second upper water box 71, second lower header 72 that is located at steel band 1 both sides; Said second upper water box 71 bottoms are provided with expanded graphite plate 73 on second; Said second lower header 72 tops are provided with expanded graphite plate 74 second time; Said second upper water box 71 is provided with the water-in 75 and the second upper water-out mouth 76 on second, and said second lower header 72 is provided with the second time water-in 77 and second lower outlet 78.Said UTILIZATION OF VESIDUAL HEAT IN pressing plate 3 comprises the 3rd upper water box 31, the 3rd lower header 32 that is located at steel band 1 both sides; Said the 3rd upper water box 31 bottoms are provided with expanded graphite plate 33 on the 3rd; Said the 3rd lower header 32 tops are provided with expanded graphite plate 34 the 3rd time; Said the 3rd upper water box 31 is provided with water-in 35 and the 3rd upper water-out mouth 36 on the 3rd, and said the 3rd lower header 32 is provided with the 3rd time water-in 37 and the 3rd lower outlet 38.Water-in 75, second time water-in 77 are connected on the water inlet pipe 11 that is provided with on the water-in 55 on said first, first time water-in 57, second; Water-in 35, the 3rd time water-in 37 are connected on the rising pipe 12 that is provided with on the said first upper water-out mouth 56, first lower outlet 58, the second upper water-out mouth 76, second lower outlet 78, the 3rd; Said the 3rd upper water-out mouth 36, the 3rd lower outlet 38 are connected on the return water pipe 13 that is provided with; Said water inlet pipe 11 is connected with the water tank that is provided with 9, and said return water pipe 13 is connected with water tank 9.Be provided with water pump 10 between said water inlet pipe 11 and the water tank 9.Be equipped with guide water board 14 in said first upper water box 51, first lower header 52, second upper water box 71, second lower header 72, the 3rd upper water box 31, the 3rd lower header 32.Upper water box adopts copper sheet with the base plate of lower header, and last expanded graphite plate can increase the capacity of heat transmission with following expanded graphite plate.
During real work, the cryogenic steel band 1 that hai roll wheel 2 sends utilizes waste heat to carry out preheating for steel band 1 through UTILIZATION OF VESIDUAL HEAT IN pressing plate 3; Can make the temperature rising 40-50 degree of steel band, in process furnace 4, steel band heated, make its temperature be elevated to the 840-870 degree; Change austenite fully into, be reduced to the temperature of steel band below the martensite transformation temperature Ms, make it change martensite into through quenching pressing plate 5; Heat through 6 pairs of steel bands of tempering stove; Make its temperature reach the 400-500 degree, tempering becomes sorbite, arrives winding wheel 8 through waste heat recovery pressing plate 7 again.Water pump 10 is extracted into the water in the water tank 9 in the water inlet pipe 11; Get on first on the water-in 55, first time water-in 57, second water-in 75, second time water-in 77 again; Arrive the rising pipe 12 from the first upper water-out mouth 56, first lower outlet 58, the second upper water-out mouth 76,78 water outlets of second lower outlet, this moment, water absorbed the heat of steel band, got into water-in 35 on the 3rd, the 3rd time water-in 37 more again; The cryogenic steel band 1 that hai roll wheel 2 is sent carries out preheating; Reduce the heat energy of steel band 1, water arrives return water pipe 13 through the 3rd upper water-out mouth 36,38 water outlets of the 3rd lower outlet then, again in water tank 9.Under the prerequisite that does not influence the steel band thermal treatment quality, can reclaim the waste heat of 10-15%.
Claims (4)
1. UTILIZATION OF VESIDUAL HEAT IN steel band heat treatment system; Comprise hai roll wheel (2), winding wheel (8), be located at the steel band (1) between hai roll wheel (2) and the winding wheel (8); Be provided with the process furnace (4) corresponding, tempering stove (6) successively between said hai roll wheel (2) and the winding wheel (8) with steel band (1); Be provided with quenching pressing plate (5) between said process furnace (4) and the tempering stove (6); Said tempering stove (6) rear portion is provided with waste heat recovery pressing plate (7); Said process furnace (4) front portion is provided with the UTILIZATION OF VESIDUAL HEAT IN pressing plate (3) corresponding with pressing plate that quenches (5) and waste heat recovery pressing plate (7); It is characterized in that: said quenching pressing plate (5) comprises first upper water box (51), first lower header (52) that is located at steel band (1) both sides, and said first upper water box (51) bottom is provided with expanded graphite plate on first (53), and said first lower header (52) top is provided with first time expanded graphite plate (54); Said first upper water box (51) is provided with the water-in on first (55) and the first upper water-out mouth (56); Said first lower header (52) is provided with first time water-in (57) and first lower outlet (58), and said waste heat recovery pressing plate (7) comprises second upper water box (71), second lower header (72) that is located at steel band (1) both sides, and said second upper water box (71) bottom is provided with expanded graphite plate on second (73); Said second lower header (72) top is provided with second time expanded graphite plate (74); Said second upper water box (71) is provided with the water-in on second (75) and the second upper water-out mouth (76), and said second lower header (72) is provided with second time water-in (77) and second lower outlet (78), and said UTILIZATION OF VESIDUAL HEAT IN pressing plate (3) comprises the 3rd upper water box (31), the 3rd lower header (32) that is located at steel band (1) both sides; Said the 3rd upper water box (31) bottom is provided with expanded graphite plate on the 3rd (33); Said the 3rd lower header (32) top is provided with expanded graphite plate (34) the 3rd time, and said the 3rd upper water box (31) is provided with water-in on the 3rd (35) and the 3rd upper water-out mouth (36), and said the 3rd lower header (32) is provided with the 3rd time water-in (37) and the 3rd lower outlet (38).
2. a kind of UTILIZATION OF VESIDUAL HEAT IN steel band heat treatment system according to claim 1; It is characterized in that: water-in (75), second time water-in (77) are connected on the water inlet pipe (11) that is provided with on water-in on said first (55), the first time water-in (57), second; Water-in (35), the 3rd time water-in (37) are connected on the rising pipe (12) that is provided with on the said first upper water-out mouth (56), first lower outlet (58), the second upper water-out mouth (76), second lower outlet (78), the 3rd; Said the 3rd upper water-out mouth (36), the 3rd lower outlet (38) are connected on the return water pipe (13) that is provided with; Said water inlet pipe (11) is connected with the water tank that is provided with (9), and said return water pipe (13) is connected with water tank (9).
3. a kind of UTILIZATION OF VESIDUAL HEAT IN steel band heat treatment system according to claim 2 is characterized in that: be provided with water pump (10) between said water inlet pipe (11) and the water tank (9).
4. a kind of UTILIZATION OF VESIDUAL HEAT IN steel band heat treatment system according to claim 2 is characterized in that: be equipped with guide water board (14) in said first upper water box (51), first lower header (52), second upper water box (71), second lower header (72), the 3rd upper water box (31), the 3rd lower header (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102303072A CN101899562B (en) | 2010-07-14 | 2010-07-14 | Waste heat utilization steel strip heat treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102303072A CN101899562B (en) | 2010-07-14 | 2010-07-14 | Waste heat utilization steel strip heat treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101899562A CN101899562A (en) | 2010-12-01 |
| CN101899562B true CN101899562B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102303072A Expired - Fee Related CN101899562B (en) | 2010-07-14 | 2010-07-14 | Waste heat utilization steel strip heat treatment system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010976B (en) * | 2010-12-08 | 2014-10-15 | 浙江佰耐钢带有限公司 | Steel belt heat treatment waste heat recovery device with bilayer structure |
| CN102492825B (en) * | 2011-12-23 | 2013-07-10 | 浙江佰耐钢带有限公司 | Steel band bainite and martensite multiphase quenching system |
| CN102517434A (en) * | 2012-01-12 | 2012-06-27 | 浙江佰耐钢带有限公司 | Device for recovering waste heat in heat treatment tempering process of steel strip |
| CN102560073A (en) * | 2012-02-08 | 2012-07-11 | 浙江佰耐钢带有限公司 | Steel band heat treatment tempering waste heat recovery device through using heat conduction oil as heat transfer medium |
| CN104651593A (en) * | 2014-06-24 | 2015-05-27 | 徐家成 | Device for utilizing afterheat of thermal treatment furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173324A (en) * | 2006-10-31 | 2008-05-07 | 黄石山力科技发展有限公司 | Novel technique for comprehensive utilization of continuous strip annealing furnace flue gas exhaust heat and device thereof |
| CN101956057A (en) * | 2010-06-13 | 2011-01-26 | 浙江佰耐钢带有限公司 | Steel band thermal treatment system with waste heat utilization device |
| CN201770747U (en) * | 2010-07-14 | 2011-03-23 | 浙江佰耐钢带有限公司 | Residual-heat utilization steel-tape heat treatment system |
-
2010
- 2010-07-14 CN CN2010102303072A patent/CN101899562B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173324A (en) * | 2006-10-31 | 2008-05-07 | 黄石山力科技发展有限公司 | Novel technique for comprehensive utilization of continuous strip annealing furnace flue gas exhaust heat and device thereof |
| CN101956057A (en) * | 2010-06-13 | 2011-01-26 | 浙江佰耐钢带有限公司 | Steel band thermal treatment system with waste heat utilization device |
| CN201770747U (en) * | 2010-07-14 | 2011-03-23 | 浙江佰耐钢带有限公司 | Residual-heat utilization steel-tape heat treatment system |
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| CN101899562A (en) | 2010-12-01 |
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Granted publication date: 20120523 |