CN102838999A - Low moisture coke cooling and waste heat utilizing device - Google Patents
Low moisture coke cooling and waste heat utilizing device Download PDFInfo
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- CN102838999A CN102838999A CN2012102919079A CN201210291907A CN102838999A CN 102838999 A CN102838999 A CN 102838999A CN 2012102919079 A CN2012102919079 A CN 2012102919079A CN 201210291907 A CN201210291907 A CN 201210291907A CN 102838999 A CN102838999 A CN 102838999A
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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
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Abstract
The invention relates to a low moisture coke cooling and waste heat utilizing device which comprises a coke cooling furnace, a first coke cooling system, a second coke cooling system, a steam generating system and a waste heat utilizing system. The first coke cooling system comprises a steam-water mixed outlet, a second steam outlet and a soft water inlet; the second coke cooling system comprises a steam inlet and a first steam outlet; both the first coke cooling system and the second coke cooling system are positioned in the coke cooling furnace; an inlet of the steam generating system is connected with the steam-water mixed outlet; an outlet of the steam generating system is connected with the steam inlet; the second steam outlet and the first steam outlet are connected with the waste heat utilizing system; and a water outlet of the waste heat utilizing system is connected with the soft water inlet. Fiery cokes are respectively subjected to recuperative type coke cooling and steam coke cooling by the first coke cooling system and the second coke cooling system; and after being subjected to heat exchange and power generation, steam is condensed into water to enter the first coke cooling system again. The integral device has low water source consumption; the cokes have high quality; and the recycling of the heat energy is implemented.
Description
Technical field
The invention belongs to low moisture quenching field, particularly relate to the integration unit of low moisture quenching.
Background technology
At present, both at home and abroad the coke quenching method of coke oven has two kinds of dry quenching(of coke) and wet quenchings.Dry quenching(of coke) is a kind of coke quenching method that cools off red Jiao with the low temperature rare gas element.In the dry coke quenching process, red Jiao packs into from the dried furnace roof portion of putting out, and the low temperature rare gas element blasts dried putting out in the stove by recirculation blower; Absorb red Jiao's heat, cooled coke temperature is reduced to below 200 degree, discharges from the dried furnace bottom that puts out; High temperature inert gas after the intensification produces steam through the boiler heat exchange of entering a profession.Cooled rare gas element blasts the coke dry quenching furnace internal recycle again by gas blower and uses.Dry coke quenching energy-conservation, improve and be superior to coke wet quenching aspect the coke quality, but its floor space is big, device structure is complicated, manufacture difficulty is big, maintenance cost is high, investment is big, and the coke scaling loss is serious.For the self coal chemical enterprise, the heat that is absorbed self is difficult for balance.Therefore, dry coke quenching is difficult to promote at the self coal chemical enterprise.Wet quenching be water spray red Jiao comprise the low moisture quenching, stablize quenching etc., and with red Jiao reduce to 100 the degree below, the steam of generation directly is discharged into atmosphere.Its characteristics are that technology is simple, reduced investment, and operation, easy maintenance, shortcoming is: the red burnt sensible heat that 1. accounts for whole coking thermal losses 30 35 % does not effectively utilize; 2. water resources consumption is many; 3. red anxious acute cooling reduces coke quality; 4. the entrainment with steam of quenching generation has pollution, corrosive medium and dust, enters not only environmental pollution of atmosphere, but a kind of waste of heat energy.
In the coking industry quenching UTILIZATION OF VESIDUAL HEAT IN technology; The dry coke quenching cogeneration technology that technological comparative maturity is arranged, ultimate principle are after passing through disposable dust remover from the high-temperature flue gas that coke dry quenching furnace comes out, to reenter into residual heat boiler for exchanging heat; Temperature is reduced to about 180 degree; The inertia recycle gas that is come out by waste heat boiler by the recirculation blower pressurization, is cooled to about 120 degree to go in the coke dry quenching furnace to use through hot tube heat exchanger after the secondary filter dedusting again.The high-voltage electric service pump will pump into waste heat boiler from the feedwater of heating power deoxygenator, and the heat that feedwater absorbs recycle gas is transformed into medium temperature and medium pressure or high temperature sub-high pressure superheated vapour, and superheated vapour pushing turbine group is used for the power unit generating.Exhaust steam after the Steam Turbine acting is condensed into water through condenser, and condensate pump is condensate pump backheat power deoxygenator, the water yield of carbonated drink circulation system loss through the supplementary feed device mend into.There is self obvious defects in above dry quenching(of coke) cogeneration technology: 1. recycle gas needs high-power blower to promote the bed of material resistance that Rapid Cycle flows and overcomes red Jiao, consumes a large amount of electric energy, and system reaches 18% from power consumption rate; 2. dry coke quenching residual heat boiler thermo-efficiency is about 88%, and the part heat has reduced the economy of system in the loss of boiler hot exchange process.
Summary of the invention
Deal with problems
The dry quenching(of coke) floor space is big, device structure is complicated, manufacture difficulty is big, maintenance cost is high, investment is big, and the coke scaling loss is serious; The red burnt sensible heat utilization rate of wet quenching is low, and water resources consumption is many, and the own demand in the serious and dry coke quenching cogeneration of topsoil is big, and system economy is low.
Technical scheme
The invention provides a kind of low moisture quenching and residual heat using device thereof; Comprise quenching stove, first quench system, second quench system, steam generating system, bootstrap system; First quench system comprises carbonated drink mixed export, second steam outlet, soft water inlet, and second quench system comprises steam-in, first steam outlet, and described first quench system and second quench system all are positioned at the quenching stove; The steam generating system inlet is connected with the carbonated drink mixed export; The steam generating system outlet is connected with the steam-in, and second steam outlet is connected with the bootstrap system inlet with first steam outlet, and the water out of bootstrap system is connected with the soft water inlet.
Described first quench system comprises first coke quencher, heat exchange wall pipe, heat exchange type pipe, centre pipe, annular heat transfer tube; Top in first coke quencher; Centre pipe is through heat exchange type pipe and heat exchange wall pipe coupling, and heat exchange type pipe is circumferential 120 ° of arrangements, the bottom in first coke quencher along centre pipe; Annular heat transfer tube is arranged between the connection of centre pipe and heat exchange wall pipe, connect by heat exchange type pipe between centre pipe, annular heat transfer tube and the heat exchange wall pipe.
Described second quenching comprises that second coke quencher of system, spray vapour device, first lead burnt plate, second and lead burnt plate, and first leads burnt plate and second leads the afterbody of burnt plate and all be deep in the ring groove of spray vapour device.
Described spray vapour device comprises two circle steam ring pipes, on the steam ring pipe, is evenly distributed with the spraying steam mouth, and two steam ring pipes were connected by pipe.
Described first steam outlet is on the top of second coke quencher, and second steam outlet is on the top of first coke quencher.
The water out of described steam separator is connected with the soft water inlet.
The present invention has been owing to taked heat exchange type quenching and steam quenching, thereby following beneficial effect is arranged:
1, whole plant area area is little, device structure is simple, manufacture difficulty is low, maintenance cost is low, investment is low.
2, whole device water resources consumption is few, and coke quality height and topsoil are low, and thermal waste is few.
3, whole device does not have high-power blower to promote the bed of material resistance that the recycle gas Rapid Cycle flows and overcomes red Jiao, and system is low from power consumption rate;
4, the heat exchanging process calorific loss of whole device is few, and thermo-efficiency is high, has improved the economy of system.
Description of drawings
Fig. 1 is the whole setting drawing of the present invention
Fig. 2 is low moisture quenching furnace interior figure of the present invention
Fig. 3 is that the B of Fig. 2 is to view
Fig. 4 is that the A of Fig. 2 is to view
Fig. 5 is that the C of Fig. 2 is to view
Among the figure, 1, blanking system 2, first coke quencher 3, fly-ash separator 4, temperature-decreased pressure reducer 5, condensing turbine 6, generator 7, condenser 8, steam accumulator 9, gas tank 10, gas-liquid separator 11, service pump 12, first coke quencher 13, desuperheater 14, storage vapour device 15, steam separator 16, steam-in 17, spray vapour device 18, second lead burnt plate 19, first and lead burnt plate 20, first steam outlet 21, carbonated drink mixed export 22, second steam outlet 23, soft water inlet 24, heat exchange wall pipe 25, heat exchange type pipe 26, centre pipe 27, annular heat transfer tube 28, pipe 29, spraying steam mouth 30, steam ring pipe.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done to detail into a step:
A kind of low moisture quenching and residual heat using device thereof; Comprise quenching stove, first quench system, second quench system, steam generating system, bootstrap system; First quench system comprises carbonated drink mixed export 21, second steam outlet 22, soft water inlet 23; Second quench system comprises steam-in 16, first steam outlet 20; It is characterized in that described first quench system and second quench system all are positioned at the quenching stove, the steam generating system inlet is connected with carbonated drink mixed export 21, and the steam generating system outlet is connected with steam-in 16; Second steam outlet 22 is connected with the bootstrap system inlet with first steam outlet 20, and the water out of bootstrap system is connected with soft water inlet 23.
Described first quench system comprises first coke quencher 2, heat exchange wall pipe 24, heat exchange type pipe 25, centre pipe 26, annular heat transfer tube 27; Top in first coke quencher 2; Centre pipe 6 is through being connected with heat exchange wall pipe 24 heat exchange type pipe 25; Heat exchange type pipe 25 is circumferential 120 ° of arrangements along centre pipe 26; Annular heat transfer tube 27 is arranged between the connection of centre pipe 26 and heat exchange wall pipe 24 at the bottom in first coke quencher 2, connects by heat exchange type pipe 25 between centre pipe 26, annular heat transfer tube 27 and the heat exchange wall pipe 24.
Described second quenching comprises that second coke quencher 12 of system, spray vapour device 17, first lead burnt plate 19, second and lead burnt plate 18, the first and lead burnt plate 19 and second and lead the afterbody of burnt plate 18 and all be deep in the ring groove that sprays vapour device 17.
Described spray vapour device 17 comprises two circle steam ring pipes 30, on the steam ring pipe, is evenly distributed with spraying steam mouth 29, two steam ring pipes 30 and is connected by pipe 28.
Described first steam outlet 20 is on the top of second coke quencher 12, and second steam outlet 22 is on the top of first coke quencher 2.
The water out of described steam separator 15 is connected with soft water inlet 23.
Principle of work:
The inwall of first coke quencher 2 has centered on a circle heat exchange wall pipe 24; Heat exchange wall pipe 24 was connected with centre pipe 26 through heat exchange type pipe 25, the top in first coke quencher 2, and heat exchange type pipe 25 is the center with centre pipe 26; Circumferentially uniform distribution is 3; One annular heat transfer tube 27 is arranged between centre pipe 26 and the heat exchange wall pipe 24 at the bottom in first coke quencher 2, between heat exchange wall pipe 24 and the annular heat transfer tube 27 through being connected heat exchange type pipe 25; Also be connected between annular heat transfer tube 27 and the centre pipe 26 through heat exchange type pipe 25; Heat exchange type pipe 25 is all around 3 of centre pipe 26 circumferential uniform distribution, and two circle heat exchange type pipe 25 are staggered spaced apart, to guarantee the intensity of annular heat transfer tube 27.Blanking system 1 falls red Jiao gradually, gets into first quench system, and red Jiao reduces with the interior soft water heat exchange of pipe, red burnt temperature, and soft water is heated.Because the outlet of first coke quencher, 2 bottoms diminishes, and has increased the heat-exchange time of red Jiao in first quench system, also slowed down the red burnt speed that gets into second quench system simultaneously.After coke gets into second quench system; Because first in second coke quencher 12 leads burnt plate 19 and second and leads the effect of burnt plate 18; Coke is assembled to fall to the center; Furnace wall with second coke quencher 12 contacts hardly, also greatly reduces the wearing and tearing of steam ring pipe 30 and the obstruction of spraying steam mouth 29 simultaneously.Coke continues heat exchange with Low Temperature Steam in second quenching 12, the temperature of coke further reduces, and the temperature of steam raises, and the temperature of discharging coke at last is below 200 degree.
From the steam water interface process steam separator 15 that first coke quencher 2 comes out, steam is separated, and gets into second coke quencher 12 through desuperheater cooling back, and the water that steam separator 15 is separated enters into 2 continuation and red burnt heat exchange of first coke quencher.Steam-in 16 front ends of second coke quencher 12 are equipped with TM and under meter, and control gets into the vapor temperature and the speed of second coke quencher 12, and the inlet steam temperature is between 130 ~ 150 degree.Unnecessary steam gets into storage vapour device 14 and stores, and in case of need, the steam-in can also connect external steam simultaneously.After the high temperature and high pressure steam that comes out from first steam outlet 20 and second steam outlet 22 is removed the dust of the inside through fly-ash separator 3; Again through getting into condensing steam turbine 5 behind temperature-decreased pressure reducer 4 cooling decompressions; And drive generator 6 sends electric energy; The condensing steam turbine front end is parallel with steam accumulator 8, can guarantee that steam evenly gets into condensing steam turbine 5.The low temperature steam that comes out from condensing steam turbine 5 passes through condenser 7; The steam of the inside all condenses into water, passes through gas-liquid separator 10 again, isolates the coal gas of the inside; Through vacuum pumping pump coal gas is sent into gas tank 9, remaining water is sent into first coke quencher 2 again and is continued and red burnt heat exchange.When condensing capacity was not enough, outside soft water can get into first coke quencher 2 through service pump 11, and when temperature-decreased pressure reducer 4 broke down, the steam of fly-ash separator 3 front ends diffused valve and opens, and steam is emitted, and guaranteed security of system.
Claims (6)
1. low moisture quenching and residual heat using device thereof; Comprise quenching stove, first quench system, second quench system, steam generating system; Bootstrap system; First quench system comprises carbonated drink mixed export (21), second steam outlet (22), soft water inlet (23), and second quench system comprises steam-in (16), first steam outlet (20), it is characterized in that described first quench system and second quench system all are positioned at the quenching stove; The steam generating system inlet is connected with carbonated drink mixed export (21); The steam generating system outlet is connected with steam-in (16), and second steam outlet (22) all is connected with the bootstrap system inlet with first steam outlet (20), and the water out of bootstrap system is connected with soft water inlet (23).
2. a kind of low moisture quenching as claimed in claim 1 and residual heat using device thereof; It is characterized in that described first quench system comprises first coke quencher (2), heat exchange wall pipe (24), heat exchange type pipe (25), centre pipe (26), annular heat transfer tube (27); Top in first coke quencher (2); Centre pipe (26) is through being connected with heat exchange wall pipe (24) heat exchange type pipe (25); Heat exchange type pipe (25) is circumferential 120 ° of arrangements along centre pipe (26); There is annular heat transfer tube (27) bottom in first coke quencher (2) between the connection of centre pipe (26) and heat exchange wall pipe (24), connects by heat exchange type pipe (25) between centre pipe (26), annular heat transfer tube (27) and the heat exchange wall pipe (24).
3. a kind of low moisture quenching as claimed in claim 1 and residual heat using device thereof; It is characterized in that described second quenching comprises that second coke quencher of system (12), spray vapour device (17), first lead burnt plate (19), second and lead burnt plate (18), first leads burnt plate (19) and second leads the afterbody of burnt plate (18) and all is deep in the ring groove that sprays vapour device (17).
4. a kind of low moisture quenching as claimed in claim 1 and residual heat using device thereof; It is characterized in that described spray vapour device (17) comprises two circle steam ring pipes (30); On the steam ring pipe, be evenly distributed with spraying steam mouth (29), two steam ring pipes (30) were connected by pipe (28).
5. a kind of low moisture quenching as claimed in claim 1 and residual heat using device thereof is characterized in that described first steam outlet (21) on the top of second coke quencher (12), and second steam outlet (22) is on the top of first coke quencher (2).
6. a kind of low moisture quenching as claimed in claim 1 and residual heat using device thereof is characterized in that the water outlet of described steam separator (15) is connected with soft water inlet (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102919079A CN102838999A (en) | 2012-08-16 | 2012-08-16 | Low moisture coke cooling and waste heat utilizing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102919079A CN102838999A (en) | 2012-08-16 | 2012-08-16 | Low moisture coke cooling and waste heat utilizing device |
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| CN102838999A true CN102838999A (en) | 2012-12-26 |
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| CN2012102919079A Pending CN102838999A (en) | 2012-08-16 | 2012-08-16 | Low moisture coke cooling and waste heat utilizing device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087733A (en) * | 2013-01-29 | 2013-05-08 | 中国中煤能源集团有限公司 | Cooling system of powder semicoke |
| CN103087734A (en) * | 2013-01-29 | 2013-05-08 | 中国中煤能源集团有限公司 | Powder semicoke cooling system and heat acquiring cooler thereof |
| CN103696817A (en) * | 2013-12-25 | 2014-04-02 | 鞍山钢铁集团公司 | Power generating device and method using melting slag heat energy |
| CN103980915A (en) * | 2014-05-26 | 2014-08-13 | 湖南华银能源技术有限公司 | Coke quenching device |
| CN107617727A (en) * | 2017-08-23 | 2018-01-23 | 南通迪瓦特节能风机有限公司 | Steel billet cold bed heat reclaim unit and its system |
| CN110514002A (en) * | 2019-09-30 | 2019-11-29 | 鞍山兴德工程技术有限公司 | The cooling kiln of needle coke calcined by rotary kiln is extinguished with steam and cooling device |
-
2012
- 2012-08-16 CN CN2012102919079A patent/CN102838999A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087733A (en) * | 2013-01-29 | 2013-05-08 | 中国中煤能源集团有限公司 | Cooling system of powder semicoke |
| CN103087734A (en) * | 2013-01-29 | 2013-05-08 | 中国中煤能源集团有限公司 | Powder semicoke cooling system and heat acquiring cooler thereof |
| CN103087734B (en) * | 2013-01-29 | 2014-04-16 | 中国中煤能源集团有限公司 | Powder semicoke cooling system and heat acquiring cooler thereof |
| CN103696817A (en) * | 2013-12-25 | 2014-04-02 | 鞍山钢铁集团公司 | Power generating device and method using melting slag heat energy |
| CN103696817B (en) * | 2013-12-25 | 2015-04-29 | 鞍山钢铁集团公司 | Power generating device and method using melting slag heat energy |
| CN103980915A (en) * | 2014-05-26 | 2014-08-13 | 湖南华银能源技术有限公司 | Coke quenching device |
| CN103980915B (en) * | 2014-05-26 | 2015-11-25 | 湖南华银能源技术有限公司 | A kind of coke quenching device |
| CN107617727A (en) * | 2017-08-23 | 2018-01-23 | 南通迪瓦特节能风机有限公司 | Steel billet cold bed heat reclaim unit and its system |
| CN107617727B (en) * | 2017-08-23 | 2019-08-23 | 南通迪瓦特节能风机有限公司 | Steel billet cold bed heat reclaim unit and its system |
| CN110514002A (en) * | 2019-09-30 | 2019-11-29 | 鞍山兴德工程技术有限公司 | The cooling kiln of needle coke calcined by rotary kiln is extinguished with steam and cooling device |
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Application publication date: 20121226 |