CN102424756A - Overheat steam-pressing coke quenching waste heat power generation process and equipment - Google Patents
Overheat steam-pressing coke quenching waste heat power generation process and equipment Download PDFInfo
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- CN102424756A CN102424756A CN2011102302430A CN201110230243A CN102424756A CN 102424756 A CN102424756 A CN 102424756A CN 2011102302430 A CN2011102302430 A CN 2011102302430A CN 201110230243 A CN201110230243 A CN 201110230243A CN 102424756 A CN102424756 A CN 102424756A
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- 239000000571 coke Substances 0.000 title claims abstract description 54
- 238000010791 quenching Methods 0.000 title claims abstract description 51
- 230000000171 quenching effect Effects 0.000 title claims abstract description 49
- 239000002918 waste heat Substances 0.000 title claims abstract description 39
- 238000010248 power generation Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000008569 process Effects 0.000 title claims abstract description 26
- 238000003825 pressing Methods 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 239000007789 gas Substances 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000010025 steaming Methods 0.000 claims description 130
- 238000000926 separation method Methods 0.000 claims description 47
- 238000000746 purification Methods 0.000 claims description 43
- 238000011049 filling Methods 0.000 claims description 37
- 238000001816 cooling Methods 0.000 claims description 26
- 238000004064 recycling Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 235000014171 carbonated beverage Nutrition 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 4
- 238000009998 heat setting Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000004939 coking Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 238000010795 Steam Flooding Methods 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 10
- 230000010354 integration Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005382 thermal cycling Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The invention relates to a coke quenching waste heat power generation technology in the coking industry, in particular to an overheat autoclaved coke quenching waste heat power generation technology and equipment, desalted water is used as a coke quenching circulating medium, a water feed pump pumps the desalted water to a coke quenching kettle and the coke quenching kettle is uniformly in direct contact with red coke for heat transfer through a nozzle group, the red coke is cooled and medium-temperature low-pressure superheated steam is generated, the superheated steam drives a turbo generator unit to generate power after mechanical impurities are separated through a tubular electric dust remover, exhaust steam is condensed into water through a condenser, a condensed water pump pumps the exhaust steam back to the deaerator for heating and then is pumped out through the water feed pump, non-condensable gas in the exhaust steam obtains water gas through a vacuumizing device, and the coke quenching kettle supplies main steam and steam. Compared with the dry quenching waste heat power generation technology, the invention does not use a boiler, inert gas, a circulating fan and related equipment devices, and has the advantages of high comprehensive utilization efficiency of heat energy, simple equipment process, low operation and maintenance cost, low self-power utilization rate and high economic benefit.
Description
Technical field
The present invention relates to a kind of quenching cogeneration technology of coking industry, a kind of specifically overheated steaming dinch burnt power generation process with waste heat and equipment.
Background technology
In coking industry quenching UTILIZATION OF VESIDUAL HEAT IN technology; The dry coke quenching cogeneration technology that technological comparative maturity is arranged; Its Technology present situation is as shown in Figure 1; Red Jiao that coke oven 1 is released is discharged into burnt jar 3 through blocking coke installation 2, and burnt jar 3 a burnt jar conveyer 22 that is driven by band filling red Jiao is transported to lifting gear 4 bottoms.Lifting gear 4 promotes and delivers to coke dry quenching furnace 21 furnace roofs with Jiao jars 3, and the charging apparatus through the band distributor is packed red Jiao in the coke dry quenching furnace 21.In coke dry quenching furnace 21, feed rare gas element; Red Jiao and rare gas element directly carry out heat exchange in coke dry quenching furnace 21; Red burnt medial temperature is cooled to average below 190 ℃ from 950～1100 ℃, be discharged on the endless belt conveyor 17 through going out coke installation 16, is sent to Jiao then and selects treatment system.Recirculation blower 15 blasts the rare gas element of the cooling coke air feeder from coke dry quenching furnace 21 bottoms in the coke dry quenching furnace 21; With red heat coke countercurrent flow, discharge 750～850 ℃ of thermal cycling gases from dry coke quenching stove 21 annular air channels, through disposable dust remover 19 dedustings; And suck air with comhustible component in the recycle gas and the burning of part coke powder after; Get into waste heat boiler 7 heat exchange again, temperature is reduced to about 180 ℃, and the inertia recycle gas that is come out by waste heat boiler 7 is after secondary filter 14 dedustings; By recirculation blower 15 pressurizations, be cooled to get in the coke dry quenching furnace 21 about 120 ℃ through hot tube heat exchanger again and use.The isolated coke powder of first and second fly-ash separator is collected in it in storage tank by special handling equipment, in order to outward transport.After all getting into the dedusting of quenching earth station dust removing system, diffuses the flue dust that the dress of dry coke quenching auxiliary is burnt, diffuse behind coke discharging and the blower fan etc. located to produce.The recycle gas component concentration surpasses safety value, is replenished by rare gas element supplementary device 18.High-voltage electric service pump 12 will pump into waste heat boiler 7 from the feedwater of heating power deoxygenator 13; The heat that feedwater absorbs recycle gas is transformed into medium temperature and medium pressure (450 ℃, 3.82Mpa) or high temperature sub-high pressure (535 ℃, 8.8Mpa) superheated vapour, and superheated vapour pushing turbine group 8 is used for power unit 8 generatings.Exhaust steam after Steam Turbine 8 actings is condensed into water through condenser 10, and condensate pump 11 is with condensate pump backheat power deoxygenator 13, and the water yield of carbonated drink circulation system loss mends through supplementary feed device 20.
There is self obvious defects in above dry quenching(of coke) cogeneration technology: rare gas element uses as circulatory mediator; The CO gas that produces can't separated and collected; Need the production process displace, replenish inertia other, production cost is also uneconomical, also there is greater risk in safety in production; Rare gas element uses as heat exchange medium, puts out stove heat absorption and the waste heat boiler exothermic process all exists the entropy that causes because of the temperature difference to increase dried, has reduced the thermal energy conversion efficiency of system; 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; 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
Technical problem to be solved by this invention is, overcomes the shortcoming of existing dry coke quenching cogeneration technology, proposes a kind of overheated steaming dinch burnt power generation process with waste heat and equipment; Do not use boiler, rare gas element, recirculation blower and relevant device device thereof; Heat integration efficient is high, and apparatus and process is simple, and operation expense is low; Low from power consumption rate, economic benefit is high.
The technical scheme that the present invention solves above technical problem is:
The overheated steaming burnt power generation process with waste heat of dinching; Carry out in the equipment of burnt still, thermal deaerator, superheated vapour purification separation device, Steam Turbine, power unit and condenser comprising that coke oven, overheated steaming are dinched; Water wall and set of nozzles in overheated steaming is dinched and is provided with in the burnt still, electrification technique as well as carries out according to the following steps:
One, red Jiao who coke oven is released overheated steaming of packing into is dinched in the burnt still;
Two, the heating back of the water in thermal deaerator pump to overheated steaming is dinched water wall further heats in the burnt still, again through the set of nozzles overheated steaming of cooling red Jiao in the burnt still that dinchs that evenly sprays water;
Three, with said hot water absorb superheated vapour that red burnt sensible heat forms through pipe-line transportation to superheated vapour purification separation device, and with the pure superheated vapour behind the separation machinery impurity be transported to Steam Turbine with power unit acting generate electricity;
Four, after the exhaust steam after will doing work is delivered to condenser and condenses into water, pump in the thermal deaerator, thermal deaerator with the water of condensation heating after pump to the overheated steaming water wall in the burnt still of dinching again, form the thermodynamic cycle of quenching production process carbonated drink;
Five, the noncondensable gas in the condenser is stored to gas holder through the vacuum extractor extraction.
The overheated steaming burnt waste heat power generation equipment of dinching comprises overheated steaming dinch burnt still, thermal deaerator, superheated vapour purification separation device, Steam Turbine, power unit and condenser; The dinch vapour outlet of burnt still of overheated steaming is connected to the steam inlet of superheated vapour purification separation device through the steam-pipe that is provided with valve; The vapour outlet of hot steam purification separation device is connected to the steam inlet of Steam Turbine through steam-pipe; Steam Turbine connects power unit; The exhaust steam outlet of Steam Turbine is through the import of pipe connection to condenser; The outlet of condenser is connected to the water-in of thermal deaerator through the water pipe that is provided with condensate pump, and the water outlet of thermal deaerator is connected to the overheated steaming water wall in the burnt still of dinching through the water pipe that is provided with electrically-driven feed pump, and water wall connects the overheated steaming set of nozzles in the burnt still of dinching through water pipe.
This shows; The present invention is to be circulatory mediator with water (de-mineralized water); Utilize the phase transformation of water liquid at normal temperatures---vapour---liquid; The heat absorption of direct contact heat-exchanging of feeding water cool off red Jiao and produce in warm low-pressure superheated steam, superheated vapour promotes the turbine driven set generating through behind the tube-type esp separation machinery impurity; Exhaust steam is condensed into water through condenser; Condensate pump blowback deoxygenator heating back is pumped by service pump, and non-condensable gases obtains water-gas through vacuum extractor in the exhaust steam, and the quenching still is supplied with main vapour, filling; Realize that thermal energy step uses and obtain the lower temperature of the discharging of the coke, heat integration efficient height; Because the present invention do not use boiler, rare gas element, recirculation blower and relevant device device thereof, apparatus and process is simple, operation expense is low, low from power consumption rate, economic benefit is high.
The technical scheme that the present invention further limits is:
The aforesaid overheated steaming burnt power generation process with waste heat of dinching is provided with two overheated steamings burnt still of dinching at least, and each overheated steaming burnt still file of dinching is arranged; Wherein at least one overheated steaming dinch burnt still as main vapour the overheated steaming burnt still of dinching, be connected to Steam Turbine through a hot steam purification separation device; Wherein at least one overheated steaming dinched burnt still as the overheated steaming of the filling burnt still of dinching, and is connected to Steam Turbine through another hot steam purification separation device; Thermal deaerator and each overheated steaming burnt still of dinching is connected; When the overheated steaming of main vapour is dinched the red burnt temperature of burnt still when being lower than 350 ℃ or steam superheating temperature and being lower than 330 ℃, the overheated steaming of the filling burnt still of dinching starts, and the overheated steaming of the main vapour burnt still of dinching changes the filling steam supply over to, forms quenching production process carbonated drink filling circular flow operating mode.
The aforesaid overheated steaming burnt power generation process with waste heat of dinching; Superheated vapour purification separation device go out the going out between the exhaust steam pipeline of steam-pipe and Steam Turbine through being provided with the pipe connection of reducing-and-cooling plant; All be provided with valve on the connecting tube of reducing-and-cooling plant and superheated vapour purification separation device and condenser; When Steam Turbine or power unit operation appearance burst stopping accident; Steam Turbine or power unit are closed and are interrupted, and open superheated vapour purification separation device to the pipe valve of reducing-and-cooling plant and the pipe valve of reducing-and-cooling plant to condenser, and main steam gets into bypass circuit.
The aforesaid overheated steaming burnt power generation process with waste heat of dinching, the normal pressure saturation water of thermal deaerator heat-setting water to 104 ℃ are supplied with the overheated steaming burnt still of dinching.Feed temperature keeps 104 ℃ of entropys that help reducing the quenching heat transfer process to increase, and keeps the temperature of reasonably the discharging of the coke simultaneously; As improve feed temperature and certainly will improve the temperature of the discharging of the coke, system's operation is uneconomical; Reduce feed temperature and can reduce the temperature of the discharging of the coke, but the water ratio that discharges of the coke can superelevation and be difficult to control coke quality, and strengthen the temperature difference and cause that entropy increases, also can reduce the economy of system.
The aforesaid overheated steaming burnt waste heat power generation equipment of dinching is provided with two overheated steamings burnt still of dinching at least, and each overheated steaming burnt still file of dinching is arranged; Wherein at least one overheated steaming dinch burnt still as main vapour the overheated steaming burnt still of dinching, be connected to Steam Turbine through a hot steam purification separation device; Wherein at least one overheated steaming dinched burnt still as the overheated steaming of the filling burnt still of dinching, and is connected to Steam Turbine through another hot steam purification separation device; Said thermal deaerator and each overheated steaming burnt still of dinching of stating is connected.Like this, many overheated steamings burnt still of dinching can replace complementary work, guarantees the continous-stable operation of system.
The aforesaid overheated steaming burnt waste heat power generation equipment of dinching; Superheated vapour purification separation device go out the going out between the exhaust steam pipeline of steam-pipe and Steam Turbine also through being provided with the pipe connection of reducing-and-cooling plant, all be provided with valve on the connecting tube of reducing-and-cooling plant and superheated vapour purification separation device and condenser.When the burst stopping accident appears in the turbine driven set operation; The turbine driven set security system is closed rapidly and is interrupted; Open the pipe valve of superheated vapour purification separation device to reducing-and-cooling plant this moment, the pipe valve of reducing-and-cooling plant to condenser, main steam gets into bypass circuit; Filling can directly be opened into condenser pipeline valve because pressure and temp is low, and filling gets into bypass circuit.Like this, when interim construction takes place and shuts down in turbine driven set, the operation of can in the same old way working of quenching cooling recirculation system.
The aforesaid overheated steaming burnt waste heat power generation equipment of dinching, water wall also is connected to said thermal deaerator through the pipeline that is provided with the recycling steam valve with being connected on the water pipe of set of nozzles; The rising pipe of thermal deaerator also is connected to the said overheated steaming water wall in the burnt still of dinching through the water pipe that is provided with the recycling water valve.Form and steam the burnt still body recirculation system of dinching;, open accidental states such as power supply for station interruption recycling steam valve and recycling water valve when can't feeding water; Dinch burnt still of thermal deaerator and overheated steaming is realized the water natural circulation; The accident that can prevent overheated steaming to dinch burnt still body and still interior arrangement Yin Gaowen burning cause, the overheated steaming burnt still safety performance under various operation conditions of dinching accesses assurance.
The aforesaid overheated steaming burnt waste heat power generation equipment of dinching, the water-gas outlet of condenser is connected to the water-gas storing device through vacuum extractor.
The aforesaid overheated steaming burnt waste heat power generation equipment of dinching, Steam Turbine is warm low pressureturbine group in the band filling, said power unit is warm low voltage generator group in the band filling.Warm low pressure turbine driven set in the band filling, main vapour is middle temperature low-pressure superheated steam parameter, and filling is middle temperature low-pressure superheated steam parameter, and cascade utilization quenching heat energy helps improving heat integration efficient.
The invention has the beneficial effects as follows: the water physico-chemical property is stable, cheap and be easy to acquisition, has phase transformation latent heat of vaporization characteristic under the normal temperature, can obtain the heat absorption capacity that number decuples rare gas element as circulatory mediator; Use band bowl spares temperature low pressure turbine driven set, the red burnt temperature of segmentation cascade utilization obtains lower discharge of the coke temperature and higher integrated heat efficiency; Utilize vapour, water phase transition process, quenching high density combustion gas sub product is separated and obtained to the water-gas noncondensable gases such as (CO, H2) that the quenching process produces fully at condenser; Do not have storage, the supplementary device of relevant devices such as high-power recirculation blower, boiler and rare gas element, reduced system's operation expense and, reduced the investment in fixed assets cost from power consumption rate; Various adaptability for working condition are strong, can no longer keep original water logging quench system.
With the overheated steaming of the amount of the discharging of the coke 100t/h burnt afterheat generating system of dinching is example; Design installed capacity 15MW; Consider the overheated steaming burnt sh ability of the discharging of the coke of dinching, the design installed capacity can reach 18MW, and the cogeneration unit operation calculated according to annual 300 days; The overheated steaming annual generated energy of burnt cogeneration unit of dinching is 100,000,000 degree, and produces 10000 tons of (about 1,500 ten thousand m3) high-quality water-gas.Coking, Steel Complex are calculated according to 0.65 yuan of electricity price/degree, and annual generating waste-heat power generation system offset enterprise power supply for station, output water-gas are realized about 8,000 ten thousand yuan of the output value.The overheated steaming burnt afterheat generating system rotating machinery of dinching is few, and system's operation expense is relatively low, and operation factor arrives 99% relatively, remarkable in economical benefits; System is annual to practice thrift about 30000 tons of mark coal (pressing 300g/Kw.h calculates), and realizes that plant area's air zero pollutes, and has good social benefit.
Description of drawings
Fig. 1 is that the dry coke quenching waste heat power generation equipment connects synoptic diagram.
Fig. 2 is the overheated steaming of the present invention burnt waste heat power generation equipment heat flow diagrams of dinching.
Fig. 3 is that dinch burnt waste heat power generation equipment of overheated steaming of the present invention connects synoptic diagram.
Fig. 4 is the overheated steaming of the present invention burnt waste heat power generation process flow figure that dinchs.
Embodiment
Embodiment 1
A kind of overheated steaming that present embodiment proposes dinch burnt power generation process with waste heat and equipment, shown in Fig. 2-4, the overheated steaming burnt power generation process with waste heat of dinching, carry out according to the following steps:
Red Jiao that (1) releases coke oven 1 overheated steaming of packing into is dinched in the burnt still 5;
(2) dinchs the heating of the water in the thermal deaerator 13 back pump to overheated steamings, and water wall 28 further heats in the burnt still 5, again through set of nozzles 27 evenly water spray cool off overheated steamings red Jiao in the burnt still 5 that dinchs;
(3) water absorbs red burnt sensible heat and forms superheated vapour, and superheated vapour gets into the mechanical impurity that superheated vapour purification separation device 6 separates in the steam flow through pipeline, and pure superheated vapour gets into Steam Turbine 8 and generates electricity with power unit 9;
Exhaust steam after the (4) acting condenses into water through condenser 10, condensed water in water pump pumps into thermal deaerator 13, thermal deaerator 13 with the water heating after pump to overheated steaming water wall 28 in the burnt still 5 of dinching again, form the thermodynamic cycle of quenching production process carbonated drink;
Noncondensable gas (water-gas) in the (5) condenser 10 is extracted out through vacuum extractor 25 and is stored to gas holder 31.
The overheated steaming burnt waste heat power generation equipment of dinching; Comprise overheated steaming dinch burnt still 5, thermal deaerator 13, superheated vapour purification separation device 6, Steam Turbine 8, power unit 9 and condenser 10; The dinch vapour outlet of burnt still 5 of overheated steaming is connected to the steam inlet of superheated vapour purification separation device 6 through the steam-pipe that is provided with valve; The vapour outlet of hot steam purification separation device 6 is connected to the steam inlet of Steam Turbine 8 through steam-pipe; Steam Turbine 8 connects power unit 9; The exhaust steam outlet of Steam Turbine 8 is through the import of pipe connection to condenser 10; The outlet of condenser 10 is connected to the water-in of thermal deaerator 13 through the water pipe that is provided with condensate pump 11, and the water outlet of thermal deaerator 13 is connected to the overheated steaming water wall 28 in the burnt still 5 of dinching through the water pipe that is provided with electrically-driven feed pump 12, and water wall 28 connects the overheated steaming set of nozzles 27 in the burnt still 5 of dinching through water pipe.
At least be provided with two overheated steamings burnt still of dinching, each overheated steaming burnt still file of dinching is arranged; Wherein at least one overheated steaming dinch burnt still as main vapour the overheated steaming burnt still of dinching, be connected to Steam Turbine 8 through a hot steam purification separation device; Wherein at least one overheated steaming dinched burnt still as the overheated steaming of the filling burnt still of dinching, and is connected to Steam Turbine 8 through another hot steam purification separation device; Thermal deaerator 13 and each overheated steaming burnt still of dinching is connected.Superheated vapour purification separation device 6 go out the going out between the exhaust steam pipeline also through being provided with the pipe connection of reducing-and-cooling plant 26 of steam-pipe and Steam Turbine 8, all be provided with valve on the connecting tube of reducing-and-cooling plant 26 and superheated vapour purification separation device 6 and condenser 10.Water wall 28 also is connected to said thermal deaerator 13 through the pipeline that is provided with recycling steam valve 24 with being connected on the water pipe of set of nozzles 27; The rising pipe of thermal deaerator 13 also is connected to the overheated steaming water wall 28 in the burnt still 5 of dinching through the water pipe that is provided with recycling water valve 23.The water-gas outlet of condenser 10 is connected to water-gas storing device 31 through vacuum extractor 25.
Red Jiao that coke oven 1 is released is discharged into burnt jar 3 through blocking coke installation 2; Burnt jar 3 a burnt jar conveyer 22 that is driven by band filling red Jiao is transported to lifting gear 4 bottoms; Lifting gear 4 promotes and delivers to overheated steaming burnt still 5 furnace roofs of dinching with Jiao jars 3, and the charging apparatus through the band distributor is dinched the coke overheated steaming of packing in the burnt still 5.The overheated steaming burnt still 5 of dinching adopts vertical layout; Have lower cover 29 and red Jiao of upper cover 30 conveniently assemble and disassembles and discharge of the coke; The overheated steaming burnt still 5 of dinching is that pressurized vessel is collected the superheated vapour that the storage quenching produces; Be red burnt refrigerating unit also be that this characteristics of superheated steam producer determine the overheated steaming burnt still 5 of dinching can only intermittently adorn Jiao, deslagging operation; Need overheated steaming more than 2 the burnt still file of dinching to arrange, when satisfying the operation of turbine driven set continous-stable, accomplishes and process flow such as redly burntly load and unload, main automotive is capable, filling moves, discharge of the coke.
Superheated vapour purification separation device 6 shells are pressurized vessels, adopt the mechanical impuritys such as carbon slag in the tubular type electric precipitation structure formation purification separation superheated vapour, and separation efficiency is greater than 98%.
Steam Turbine 8 is warm low pressureturbine group in the band filling; Power unit 9 is warm low voltage generator group in the band filling; Warm low pressure turbine driven set 8,9 in the band filling, main vapour is middle temperature low-pressure superheated steam parameter, filling is middle temperature low-pressure superheated steam parameter; Cascade utilization quenching heat energy helps improving heat integration efficient.
The operational process of present embodiment is:
Red Jiao (950～1100 ℃) is discharged into the overheated steaming burnt still 5A that dinchs through lifting gear 4 in burnt jar 3; Overheated steaming red Jiao in the burnt still 5A set of nozzles segmentation water spray cooling reactor that dinchs; Water absorbs red burnt sensible heat and forms saturation steam through the overheated back formation of red Jiao of epimere superheated vapour (1.08Mpa; 450 ℃); Obtain pure superheated vapour by pipe-line transportation to main superheated vapour purification separation device 6, by 8,9 generatings of pipe-line transportation to turbine driven set, the exhaust steam (0.095Mpa after the generating; 50 ℃) condense into water (45 ℃) through condenser 10; Condensed water is pumped into high-order normal pressure thermal deaerator 13 and is heated to 104 ℃ of feed temperatures by condensate pump 11, and feedwater sprays from each set of nozzles after further heating through water wall in high-voltage electric service pump 12 pumps to the still, thereby forms quenching production process carbonated drink therrmodynamic system master vapour cycle operation condition.
Overheated steaming dinch the red burnt temperature of burnt still 5A be lower than 350 ℃, when the main steam temperature of superheat is lower than (330 ℃); Superheated vapour is carried and to be switched to the filling loop, and the overheated steaming burnt still 5A that dinchs changes filling steam supply (0.2Mpa, 140 ℃) over to; Pipe-line transportation to turbine promotes the turbine driven set generating; Exhaust steam after the generating condenses into water through condenser, and noncondensable gas (water-gas) is extracted storage out through vacuum extractor 25, and condensed water pumps into normal pressure thermal deaerator 13 by condensate pump 11; High-voltage electric service pump 12 will feed water and pump into the quenching still again, form quenching production process boiler circuit filling circular flow operating mode.The filling parameter is lower than 0.1Mpa, stops water spray 120 ℃ the time, opens lower cover after the pressure release of quenching jar and discharges of the coke 150 ℃ of medial temperatures.The overheated steaming burnt still 5A that dinchs changes over to and must have before the filling steam supply the overheated steaming burnt still 5B that dinchs to load and unload the main vapour steam supply of red defocused entering, and filling can not promote turbine driven set 8,9 generatings separately, and system always has a quenching still to be in main vapour steam supply state.
Hot steam purification separation device 6 go out the going out between the exhaust steam pipeline also through being provided with the pipe connection of reducing-and-cooling plant 26 of steam-pipe and Steam Turbine 8, all be provided with valve on the connecting tube of reducing-and-cooling plant 26 and superheated vapour purification separation device 6 and condenser 10.When the burst stopping accident appears in the turbine driven set operation; The turbine driven set security system is closed rapidly and is interrupted; Open the pipe valve of superheated vapour purification separation device 6 to reducing-and-cooling plant 26 this moment, the pipe valve of reducing-and-cooling plant 26 to condenser 10, main steam gets into bypass circuit; Filling can directly be opened into condenser 10 pipe valves because pressure and temp is low, and filling gets into bypass circuit.Like this, when interim construction takes place and shuts down in turbine driven set, the operation of can in the same old way working of quenching cooling recirculation system.Because system layout is the overheated steaming burnt still 5 of dinching more than two; Even certain quenching still fault takes place in above-mentioned accident simultaneously; As long as there is a quenching still normally to move; Do not influence the normal operation of meeting quenching cooling system yet, make present embodiment have very strong various adaptability for working condition, no longer keep original water logging quench system and can guarantee system's continous-stable operation yet.
Present embodiment master vapour, filling quenching circulation system calculate its comprehensive utilization efficiency of heat energy and reach 24%; The present embodiment main performance index is: the burnt main steam (1.08Mpa of ton; 350 ℃) 0.622 ton of output, 0.132 ton of ton burnt filling (0.2Mpa, 140 ℃) output; The burnt generated energy 140Kw.h of ton, burnt water-gas 15 ㎏ that produce of ton; Present embodiment can obtain higher comprehensive economic index.
Except that the foregoing description, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (10)
1. the overheated steaming burnt power generation process with waste heat of dinching; Carry out in the equipment of burnt still (5), thermal deaerator (13), superheated vapour purification separation device (6), Steam Turbine (8), power unit (9) and condenser (10) comprising that coke oven (1), overheated steaming are dinched; Said overheated steaming is dinched and is provided with interior water wall (28) and set of nozzles (27) in the burnt still (5), and it is characterized in that: said electrification technique as well as carries out according to the following steps:
One, red Jiao who coke oven (1) is released overheated steaming of packing into is dinched in the burnt still (5);
Two,, evenly spray water through set of nozzles (27) again and cool off overheated steaming red Jiao in the burnt still (5) that dinchs with the heating of the water in the thermal deaerator (13) back pump to the overheated steaming further heating of interior the water wall of burnt still (5) (28) of dinching;
Three, with said hot water absorb superheated vapour that red burnt sensible heat forms through pipe-line transportation to superheated vapour purification separation device (6), and with the pure superheated vapour behind the separation machinery impurity be transported to Steam Turbine (8) with power unit (9) acting generate electricity;
Four, after the exhaust steam after will doing work is delivered to condenser (10) and condenses into water; Pump in the thermal deaerator (13); Thermal deaerator (13) is with pump to overheated steaming interior the water wall of burnt still (5) (28) of dinching again after the water of condensation heating, the thermodynamic cycle of formation quenching production process carbonated drink;
Five, the noncondensable gas in the condenser (10) is stored to gas holder (31) through vacuum extractor (25) extraction.
2. the overheated steaming as claimed in claim 1 burnt power generation process with waste heat of dinching is characterized in that: be provided with two overheated steamings burnt still of dinching at least, each overheated steaming burnt still file of dinching is arranged; Wherein at least one overheated steaming dinch burnt still as main vapour the overheated steaming burnt still of dinching, be connected to Steam Turbine (8) through a hot steam purification separation device; Wherein at least one overheated steaming dinched burnt still as the overheated steaming of the filling burnt still of dinching, and is connected to Steam Turbine (8) through another hot steam purification separation device; Said thermal deaerator (13) and each overheated steaming burnt still of dinching is connected; When the overheated steaming of main vapour is dinched the red burnt temperature of burnt still when being lower than 350 ℃ or steam superheating temperature and being lower than 330 ℃, the overheated steaming of the filling burnt still of dinching starts, and the overheated steaming of the main vapour burnt still of dinching changes the filling steam supply over to, forms quenching production process carbonated drink filling circular flow operating mode.
3. according to claim 1 or claim 2 the overheated steaming burnt power generation process with waste heat of dinching; It is characterized in that: said superheated vapour purification separation device (6) go out the going out between the exhaust steam pipeline of steam-pipe and Steam Turbine (8) through being provided with the pipe connection of reducing-and-cooling plant (26); All be provided with valve on the connecting tube of said reducing-and-cooling plant (26) and superheated vapour purification separation device (6) and condenser (10); When Steam Turbine (8) or power unit (9) operation appearance burst stopping accident; Steam Turbine (8) or power unit (9) are closed and are interrupted; Open superheated vapour purification separation device (6) to the pipe valve of reducing-and-cooling plant (26) and the pipe valve of reducing-and-cooling plant (26) to condenser (10), main steam gets into bypass circuit.
4. the overheated steaming as claimed in claim 1 burnt power generation process with waste heat of dinching is characterized in that: the normal pressure saturation water of said thermal deaerator (13) heat-setting water to 104 ℃ is supplied with the overheated steaming burnt still (5) of dinching.
5. an overheated steaming burnt waste heat power generation equipment of dinching; Comprise overheated steaming dinch burnt still (5), thermal deaerator (13), superheated vapour purification separation device (6), Steam Turbine (8), power unit (9) and condenser (10); It is characterized in that: the dinch vapour outlet of burnt still (5) of said overheated steaming is connected to the steam inlet of superheated vapour purification separation device (6) through the steam-pipe that is provided with valve; The vapour outlet of said hot steam purification separation device (6) is connected to the steam inlet of said Steam Turbine (8) through steam-pipe; Said Steam Turbine (8) connects said power unit (9); The exhaust steam outlet of said Steam Turbine (8) is through the import of pipe connection to condenser (10); The outlet of said condenser (10) is connected to the water-in of said thermal deaerator (13) through the water pipe that is provided with condensate pump (11); The water outlet of said thermal deaerator (13) is connected to the said overheated steaming water wall (28) in the burnt still (5) of dinching through the water pipe that is provided with electrically-driven feed pump (12), and said water wall (28) connects the said overheated steaming set of nozzles (27) in the burnt still (5) of dinching through water pipe.
6. the overheated steaming as claimed in claim 5 burnt waste heat power generation equipment of dinching is characterized in that: be provided with two overheated steamings burnt still of dinching at least, each overheated steaming burnt still file of dinching is arranged; Wherein at least one overheated steaming dinch burnt still as main vapour the overheated steaming burnt still of dinching, be connected to Steam Turbine (8) through a hot steam purification separation device; Wherein at least one overheated steaming dinched burnt still as the overheated steaming of the filling burnt still of dinching, and is connected to Steam Turbine (8) through another hot steam purification separation device; Said thermal deaerator (13) and each overheated steaming burnt still of dinching is connected.
7. like claim 5 or the 6 described overheated steamings burnt waste heat power generation equipment of dinching; It is characterized in that: said superheated vapour purification separation device (6) go out the going out between the exhaust steam pipeline also through being provided with the pipe connection of reducing-and-cooling plant (26) of steam-pipe and Steam Turbine (8), all be provided with valve on the connecting tube of said reducing-and-cooling plant (26) and superheated vapour purification separation device (6) and condenser (10).
8. like claim 5 or the 6 described overheated steamings burnt waste heat power generation equipment of dinching, it is characterized in that: also be connected to said thermal deaerator (13) on the connecting tube of said water wall (28) and set of nozzles (27) through the pipeline that is provided with recycling steam valve (24); The rising pipe of said thermal deaerator (13) also is connected to said overheated steaming water wall (28) inlet channel in the burnt still (5) of dinching through the water pipe that is provided with recycling water valve (23).
9. like claim 5 or the 6 described overheated steamings burnt waste heat power generation equipment of dinching, it is characterized in that: the water-gas outlet of said condenser (10) is connected to water-gas storing device (31) through vacuum extractor (25).
10. like claim 5 or the 6 described overheated steamings burnt waste heat power generation equipment of dinching, it is characterized in that: said Steam Turbine (8) is warm low pressureturbine group in the band filling, and said power unit (9) is warm low voltage generator group in the band filling.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944018A (en) * | 2012-11-23 | 2013-02-27 | 广东开能环保能源有限公司 | Burning and waste heat power generation system for hazardous wastes |
| CN103710048A (en) * | 2013-12-27 | 2014-04-09 | 李九林 | Synthetic gas coproduction device for semi-dry coke quenching |
| CN104531187A (en) * | 2014-12-29 | 2015-04-22 | 成都昊特新能源技术股份有限公司 | Method for preparing tar, coal gas and semi-coke by virtue of pyrolysis of bituminous coal |
| CN105441092A (en) * | 2015-12-16 | 2016-03-30 | 榆林学院 | Automatic water spraying device for steam coke quenching in semi-coke production |
| CN109401762A (en) * | 2017-08-16 | 2019-03-01 | 科利特环能科技（大连）有限公司 | A kind of water steam coke quenching method and its device |
| CN111139090A (en) * | 2019-12-27 | 2020-05-12 | 中冶焦耐(大连)工程技术有限公司 | Ultralow-load operation method of dry quenching system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56129709A (en) * | 1980-03-18 | 1981-10-12 | Sumitomo Heavy Ind Ltd | Energy recovering device from red-hot coke |
| CN1657591A (en) * | 2005-03-14 | 2005-08-24 | 康应龙 | Vertical cylidndrical coke oven and submerging coke quenching method |
| CN1958722A (en) * | 2005-11-06 | 2007-05-09 | 何相华 | Energy saving and environmental protective method and equipment with pressed water for quenching coke |
| CN201121178Y (en) * | 2007-10-31 | 2008-09-24 | 北京弘泰汇明能源技术有限责任公司 | Coke quenching tower vapor recovery unit |
| CN101289620A (en) * | 2008-05-12 | 2008-10-22 | 烟台同业化工技术有限公司 | Integration process of coke dry quenching co-production synthesis gas and downstream products thereof of methanol |
-
2011
- 2011-08-11 CN CN2011102302430A patent/CN102424756B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56129709A (en) * | 1980-03-18 | 1981-10-12 | Sumitomo Heavy Ind Ltd | Energy recovering device from red-hot coke |
| CN1657591A (en) * | 2005-03-14 | 2005-08-24 | 康应龙 | Vertical cylidndrical coke oven and submerging coke quenching method |
| CN1958722A (en) * | 2005-11-06 | 2007-05-09 | 何相华 | Energy saving and environmental protective method and equipment with pressed water for quenching coke |
| CN201121178Y (en) * | 2007-10-31 | 2008-09-24 | 北京弘泰汇明能源技术有限责任公司 | Coke quenching tower vapor recovery unit |
| CN101289620A (en) * | 2008-05-12 | 2008-10-22 | 烟台同业化工技术有限公司 | Integration process of coke dry quenching co-production synthesis gas and downstream products thereof of methanol |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944018A (en) * | 2012-11-23 | 2013-02-27 | 广东开能环保能源有限公司 | Burning and waste heat power generation system for hazardous wastes |
| CN102944018B (en) * | 2012-11-23 | 2015-10-28 | 广东开能环保能源有限公司 | A kind of dangerous waste incineration and afterheat generating system thereof |
| CN103710048A (en) * | 2013-12-27 | 2014-04-09 | 李九林 | Synthetic gas coproduction device for semi-dry coke quenching |
| CN104531187A (en) * | 2014-12-29 | 2015-04-22 | 成都昊特新能源技术股份有限公司 | Method for preparing tar, coal gas and semi-coke by virtue of pyrolysis of bituminous coal |
| CN105441092A (en) * | 2015-12-16 | 2016-03-30 | 榆林学院 | Automatic water spraying device for steam coke quenching in semi-coke production |
| CN109401762A (en) * | 2017-08-16 | 2019-03-01 | 科利特环能科技（大连）有限公司 | A kind of water steam coke quenching method and its device |
| CN111139090A (en) * | 2019-12-27 | 2020-05-12 | 中冶焦耐(大连)工程技术有限公司 | Ultralow-load operation method of dry quenching system |
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| CN102424756B (en) | 2013-11-20 |
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