CN107905860A - A kind of coal gas of converter generating equipment and method - Google Patents
A kind of coal gas of converter generating equipment and method Download PDFInfo
- Publication number
- CN107905860A CN107905860A CN201711371015.9A CN201711371015A CN107905860A CN 107905860 A CN107905860 A CN 107905860A CN 201711371015 A CN201711371015 A CN 201711371015A CN 107905860 A CN107905860 A CN 107905860A
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- Prior art keywords
- converter
- coal gas
- reactor
- reduction
- oxidation
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- 239000003034 coal gas Substances 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000006722 reduction reaction Methods 0.000 claims abstract description 88
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 77
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000000428 dust Substances 0.000 claims abstract description 41
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 39
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000003647 oxidation Effects 0.000 claims description 44
- 239000007789 gas Substances 0.000 claims description 36
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 30
- 239000001301 oxygen Substances 0.000 claims description 30
- 229910052760 oxygen Inorganic materials 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 26
- 239000000919 ceramic Substances 0.000 claims description 17
- 238000002309 gasification Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 7
- 238000004146 energy storage Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000002918 waste heat Substances 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000003134 recirculating effect Effects 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- GCNLQHANGFOQKY-UHFFFAOYSA-N [C+4].[O-2].[O-2].[Ti+4] Chemical compound [C+4].[O-2].[O-2].[Ti+4] GCNLQHANGFOQKY-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K21/00—Steam engine plants not otherwise provided for
- F01K21/04—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
- C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/06—Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel or plant
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Industrial Gases (AREA)
Abstract
The present invention provides a kind of coal gas of converter generating equipment and method, generating equipment is connected with converter, including nonaqueous dust cleaner, reduction reaction device, oxidation reaction apparatus, turbine set, generator and and residual heat using device, converter, nonaqueous dust cleaner, reduction reaction device and oxidation reaction apparatus sequential communication, and reduction reaction device, oxidation reaction apparatus, residual heat using device and generator are connected with turbine set.The present invention carries out dedusting by dry method to coal gas of converter, it will not cool down to coal gas of converter, coal gas of converter is set to obtain the carbon dioxide and vapor with higher temperature after reduction reaction is carried out, by being recycled to the heat of carbon dioxide and vapor, the loss of heat and the waste of the energy can be effectively reduced；Coal gas of converter will not be diffused during coal gas of converter is handled, reduce economic loss and environmental pollution；And the very high carbon dioxide of purity can be obtained by carrying out reduction reaction to coal gas of converter.
Description
Technical field
The present invention relates to RECOVERY OF CONVERTER GAS to utilize technical field, refers in particular to a kind of coal gas of converter generating equipment and side
Method.
Background technology
During bessemerizing, have the largely coal gas of converter containing CO and produce.Under normal circumstances, coal gas of converter passes through gas
Change cooling stack and temperature is cooled to 900 DEG C or so by 1500 DEG C~1600 DEG C, then by wet method or semidry method to 900 DEG C or so
Coal gas of converter carry out dedusting, the temperature of coal gas of converter can be reduced to 200 DEG C by dedusting while, in the process, be caused big
The thermal loss of amount, causes thermal energy and greatly wastes；
Then, by flue gas analyzer to the O in coal gas of converter2Concentration and CO concentration are analyzed, when coal gas of converter reaches
Then recycled into gas holder to recycling standard, diffused if coal gas of converter cannot reach recycling standard by diffusing tower,
In whole technical process, coal gas of converter not up to standard, which diffuses, can cause huge economic loss, also be brought seriously to environment
Pollution；
In addition, CO and CO in coal gas of converter2The sum of content up to 90%, there is the inherent advantage of carbon enrichment.It is existing
The application of coal gas of converter generates electricity primarily as formation steam after fuel combustion, and combustion process is generally carried out using air
It is combustion-supporting, the CO in flue gas2By substantial amounts of N2Water down, lose the advantage of carbon enrichment so that CO2Trapping become very difficult.
The content of the invention
The object of the present invention is to provide a kind of coal gas of converter generating equipment and method, can effectively to the heat of coal gas of converter into
Row recycling, reduces the waste of thermal loss and thermal energy, while coal gas of converter will not be diffused, and reduces economic loss and environment
Pollution, and can effectively collect the carbon dioxide of high concentration.
It is a kind of coal gas of converter generating equipment the present invention provides burning chemistry chains to reach above-mentioned purpose, wherein, it is described
Coal gas of converter generating equipment is connected with converter, and the coal gas of converter generating equipment includes nonaqueous dust cleaner, reduction reaction device, oxygen
Change reaction unit, turbine set, generator and and residual heat using device, the converter, the nonaqueous dust cleaner, the reduction it is anti-
Answer device and the oxidation reaction apparatus sequential communication, and the reduction reaction device, the oxidation reaction apparatus, the waste heat
Connected using device and the generator with the turbine set.
Coal gas of converter generating equipment as described above, wherein, the nonaqueous dust cleaner is ceramic filter.
Coal gas of converter generating equipment as described above, wherein, the top exit of the converter by gasification cooling flue with
The entrance connection of the nonaqueous dust cleaner, and the gasification cooling flue is connected by threeway with steam energy storage device.
Coal gas of converter generating equipment as described above, wherein, the reduction reaction device includes reduction reactor and first
Cyclone separator, the outlet of the nonaqueous dust cleaner are connected with the first entrance of the reduction reactor, the reduction reactor
Gas vent connected with the entrance of first cyclone separator, the outlet at bottom of first cyclone separator with it is described also
The second entrance connection of former reactor, the top exit of first cyclone separator is connected with the turbine set, described to go back
The outlet at bottom of former reactor is connected with the oxidation reaction apparatus, and the oxidation reaction apparatus and the reduction reactor
3rd entrance connects.
Coal gas of converter generating equipment as described above, wherein, the oxidation reaction apparatus includes oxidation reactor, the second rotation
Wind separator and air blower, the outlet at bottom of the reduction reactor is connected with the first entrance of the oxidation reactor, described
The gas vent of oxidation reactor is connected with second cyclone separator, the outlet at bottom of second cyclone separator and institute
The second outlet connection of oxidation reactor is stated, the top exit of second cyclone separator is connected with the turbine set, institute
State the outlet at bottom of oxidation reactor to connect with the 3rd entrance of the reduction reactor, the air blower and the oxidation reaction
The 3rd entrance connection of device, the 3rd entrance of the oxidation reactor are opened in the top of the oxidation reactor.
Coal gas of converter generating equipment as described above, wherein, the reduction reactor in the oxidation reactor with being all provided with
There is oxygen carrier, the pipeline of the outlet at bottom and the oxidation reactor that connect the reduction reactor is equipped with first pump housing；Even
The pipeline of the outlet at bottom and the reduction reactor that lead to the oxidation reactor is equipped with second pump housing.
Coal gas of converter generating equipment as described above, wherein, the turbine set includes the first turbine and the second turbine
Machine, first turbine are coaxially disposed with second turbine and are connected with the generator, the reduction reaction device
And the residual heat using device is connected with first turbine, the oxidation reaction apparatus connects with second turbine
It is logical.
Coal gas of converter generating equipment as described above, wherein, the residual heat using device includes condenser, the condenser
Connected respectively with first turbine, water recovery device, carbon dioxide recovering apparatus.
Coal gas of converter generating equipment as described above, wherein, the outlet at bottom of the nonaqueous dust cleaner is connected with briquetting
Device.
Present invention also offers a kind of coal gas of converter electricity-generating method, wherein, the coal gas of converter electricity-generating method includes：
Step 1：Level-one cooling is carried out to coal gas of converter, recycles thermal energy；
Step 2：Dry method dust is carried out to the coal gas of converter by level-one cooling；
Step 3：To carrying out reduction reaction by the coal gas of converter of dry method dust, carbon dioxide and vapor are obtained,
Generated electricity by carbon dioxide and vapor；
Step 4：Two level cooling is carried out to carbon dioxide and vapor, recycles thermal energy, the titanium dioxide after being cooled down
Carbon gas and liquid water.
Compared with prior art, advantages of the present invention is as follows：
The present invention carries out dedusting by dry method to coal gas of converter, and coal gas of converter will not be dropped during dedusting
Temperature, makes coal gas of converter still have higher temperature, and the energy after coal gas of converter carries out reduction reaction before reduction reaction is carried out
The carbon dioxide and vapor with higher temperature are obtained, by being returned to the heat of carbon dioxide and vapor
Receive, can effectively reduce the loss of heat and the waste of the energy；The present invention will not be right during coal gas of converter is handled
Coal gas of converter is diffused, and reduces economic loss and environmental pollution；And the present invention to coal gas of converter by carrying out reduction reaction energy
Obtain the very high carbon dioxide of purity.
Brief description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein：
Fig. 1 is the structure diagram of coal gas of converter generating equipment provided by the invention；
Fig. 2 is the step flow chart of coal gas of converter electricity-generating method provided by the invention.
Drawing reference numeral explanation：
1st, converter；
2nd, nonaqueous dust cleaner；
3rd, reduction reaction device；
31st, reduction reactor；
32nd, the first cyclone separator；
33rd, first pump housing；
4th, oxidation reaction apparatus；
41st, oxidation reactor；
42nd, the second cyclone separator；
43rd, air blower；
44th, second pump housing；
5th, turbine set；
51st, the first turbine；
52nd, the second turbine；
6th, residual heat using device；
61st, condenser；
7th, steam energy storage device；
8th, briquetting device；
9th, generator
Embodiment
In order to have clearer understanding to technical scheme, purpose and effect, in conjunction with the brief description of the drawings present invention
Embodiment.
As shown in Figure 1, the present invention provides a kind of coal gas of converter generating equipment, wherein, coal gas of converter generating equipment is with turning
Stove 1 connects, and coal gas of converter generating equipment includes nonaqueous dust cleaner 2, reduction reaction device 3, oxidation reaction apparatus 4, turbine set
5th, generator 9 and residual heat using device 6, nonaqueous dust cleaner 2 are used to carry out dedusting to coal gas of converter, and nonaqueous dust cleaner 2 is to turning
Producer gas carries out during dedusting the temperature of coal gas of converter will not being caused to reduce, during effectively reducing coal gas dust removal of converter
Thermal loss, converter 1, nonaqueous dust cleaner 2, reduction reaction device 3 and 4 sequential communication of oxidation reaction apparatus, and reduction reaction
Device 3, oxidation reaction apparatus 4, residual heat using device 6 and generator 9 are connected with turbine set 5.Coal gas of converter by converter 1 into
Enter and dedusting is carried out into nonaqueous dust cleaner 2, enter after dedusting in reduction reaction device 3 and carry out reduction reaction generation carbon dioxide gas
Body and vapor, during reduction reaction is carried out, oxidation reaction apparatus 4 provides oxygen element for reduction reaction device 3；Due to
Coal gas of converter has higher temperature in itself when entering reduction reaction device 3, and coal gas of converter is in reduction reaction device 3
Reduction reaction is exothermic, and therefore, obtained carbon dioxide is respectively provided with higher temperature with vapor, substantially with converter coal
Temperature of the gas before nonaqueous dust cleaner 2 is entered is identical；Then, carbon dioxide and vapor collective effect driving turbine
Group 5 does work and drives generator 9 to generate electricity, and enters waste heat recovery by the carbon dioxide after turbine set 5 and vapor
Device, since carbon dioxide and vapor drive the thermal loss during the acting of turbine set 5 smaller, at this time
Carbon dioxide and vapor still there is very high temperature, carbon dioxide is entering waste heat recovery dress with vapor
Postpone and recycled heat exchange to the medium in waste-heat recovery device in a manner of heat exchange, at the same time, dioxy
Change the Wen Duxiajiang of carbon gas and vapor, vapor becomes liquid water, in this way, can be by liquid water and carbon dioxide point
Do not recycle, so as to obtain the carbon dioxide with very high concentration.
Further, as shown in Figure 1, the present invention provides a kind of coal gas of converter generating equipment, wherein, nonaqueous dust cleaner 2
For ceramic filter.For the ceramic filter that the present invention uses for high temperature resistant dust collector, ceramic filter uses pulse dust cleaning mode,
For efficiency of dust collection up to 99.9%, ceramic filter mainly carries out dedusting by sieving actoion to dust-laden coal gas.When outside ceramic filter
Superficial dust is excessive, it is necessary to carry out reverse gas cleaning to it when dedusting resistance is excessive.The ceramic filter that the present invention uses is carrying out
Pulse dust cleaning be it is used be high temperature and pressure nitrogen, nitrogen has the advantages that stability is good；Can be to avoid using high temperature nitrogen
Cause the Wen Duxiajiang of ceramic filter during reverse gas cleaning, to ensure that the temperature of ceramic filter is maintained at higher all the time
Temperature, avoids making when continuing to filter coal gas of converter after the completion of reverse gas cleaning operation coal gas of converter by ceramic filter
With ceramic filter temperature decline generation there is a situation where heat exchange during device, unnecessary thermal loss is reduced；
Ceramic filter can be produced larger impact force by carrying out reverse gas cleaning to ceramic filter using high temperature and pressure nitrogen, so that
Effectively the dust on ceramic filter is cleaned out.
Further, as shown in Figure 1, the present invention provides a kind of coal gas of converter generating equipment, wherein, the top of converter 1
Outlet is connected by gasification cooling flue with the entrance of nonaqueous dust cleaner 2, and gasification cooling flue passes through threeway and steam energy storage
Device 7 or steam pipe network connection.Wherein, first time cooling can be carried out to coal gas of converter by gasification cooling flue, this time cooled down
The temperature of coal gas of converter can be cooled to 900 DEG C or so by 1500 DEG C~1600 DEG C, coal gas of converter in gasification cooling flue into
During row heat exchange, the cooling water in the tube wall of gasification cooling flue produces saturated vapor and exports to steam energy storage device 7
Or in steam pipe network, available for process for making or heating etc..It should be noted that when setting the position of threeway, three are should ensure that
There is the logical gasification cooling flue between coal gas of converter enough length can effectively cool down to coal gas of converter.To ensure vapour
Change the unobstructed of cooling stack, ultrasonic wave deashing device is equipped with gasification cooling flue, to remove on gasification cooling flue inner wall
Dust, improves the heat exchange efficiency between coal gas of converter and water, so as to increase saturated vapor yield.
Further, as shown in Figure 1, the present invention provides a kind of coal gas of converter generating equipment, wherein, reduction reaction device
3 include 31 and first cyclone separator 32 of reduction reactor, the outlet of nonaqueous dust cleaner 2 and the first entrance of reduction reactor 31
Connection, the gas vent of reduction reactor 31 are connected with the entrance of the first cyclone separator 32, the bottom of the first cyclone separator 32
Portion outlet is connected with the second entrance of reduction reactor 31, and the top exit of the first cyclone separator 32 is connected with turbine set 5,
The outlet at bottom of reduction reactor 31 is connected with oxidation reaction apparatus 4, and oxidation reaction apparatus 4 and the 3rd of reduction reactor 31
Entrance connects.In use, it is anti-to enter reduction for the coal gas of converter (main component CO) after ceramic filter filters
Answer in device 31,31 and first cyclone separator 32 of reduction reactor composition recirculating fluidized bed, in reduction reactor 31, CO and oxygen
Element reaction high temperature and pressure CO2Gas and vapor.The high temperature and pressure CO of reaction generation in reduction reactor 312Gas and water steam
Gas, is sent to the first turbine 51 through the first cyclone separator 32 and does work, and drives generator 9 to generate electricity, goes out from the first turbine 51
The gas come, the relatively low CO of temperature is condensed into through 6 heat exchange of residual heat using device2Gas and water, heat and CO2Gas is returned
Receive.
Further, as shown in Figure 1, the present invention provides a kind of coal gas of converter generating equipment, wherein, oxidation reaction apparatus
4 include oxidation reactor 41, the second cyclone separator 42 and air blower 43, the outlet at bottom and oxidation reaction of reduction reactor 31
The first entrance connection of device 41, the gas vent of oxidation reactor 41 are connected with the second cyclone separator 42, the second cyclonic separation
The outlet at bottom of device 42 is connected with the second outlet of oxidation reactor 41, the top exit and turbine of the second cyclone separator 42
The connection of group 5, the outlet at bottom of oxidation reactor 41 are connected with the 3rd entrance of reduction reactor 31, air blower 43 and oxidation reaction
The 3rd entrance connection of device 41, the 3rd entrance of oxidation reactor 41 are opened in the top of oxidation reactor 41.Oxidation reactor
41 are used to provide oxygen element into reduction reactor 31, to ensure that the reduction reaction of coal gas of converter persistently carries out, with to turbine
Group 5 uninterruptedly provides gas to drive turbine set 5 to do work and drive generator 9 continuously and uninterruptedly to generate electricity.
Further, the present invention provides a kind of coal gas of converter generating equipment, wherein, reduction reactor 31 and oxidation reaction
Be equipped with oxygen carrier in device 41, oxygen carrier is metal oxygen carrier, metal oxygen carrier be specially Ni-based oxygen carrier, iron-based oxygen carrier and
One kind in copper-based oxygen carrier, or can also be the mixing oxygen carrier that above-mentioned various metals oxygen carrier is mixed to form.Connection is also
The outlet at bottom of former reactor 31 is equipped with first pump housing 33 with the pipeline of oxidation reactor 41, and oxygen carrier is in reduction reactor 31
Interior generation reduction-state oxygen carrier, and is sent in oxidation reactor 41 by first pump housing 33, and at the same time, air blower 43 is to oxygen
Change and air is blasted in reactor 41,41 and second cyclone separator 42 of oxidation reactor composition recirculating fluidized bed, aoxidize anti-
Should be by oxygen carrier oxidating, the oxidation state oxygen carrier of generation；Connect the outlet at bottom and reduction reactor 31 of oxidation reactor 41
Pipeline is equipped with second pump housing 44, and the oxidation state oxygen carrier in oxidation reactor 41 is sent to reduction reaction by second pump housing 44
Reduction reaction occurs with coal gas of converter in device 31, obtains reduction-state oxygen carrier, reduction-state oxygen carrier is again by first pump housing 33
It is admitted in oxidation reactor 41 and carries out oxidation reaction, so recycles, oxygen element is constantly defeated by oxidation reactor 41
Send into reduction reactor 31, to ensure that reduction reaction uninterruptedly carries out.In reduction-state oxygen carrier in oxidation reactor
When oxidation reaction is carried out in 41, the oxygen element in air is combined with reduction-state oxygen carrier, produces the higher nitrogen of purity, and nitrogen leads to
Cross in the second cyclone separator 42 entrance turbine set 5 and do work, drive generator 9 to generate electricity.Such reduction reactor 31 and oxidation
Reactor 41 provides gas to drive turbine set 5 to do work to turbine set 5 at the same time, further ensure that turbine set 5
Can continuously continual drive generator 9 it generate electricity.
Further, as shown in Figure 1, the present invention provides a kind of coal gas of converter generating equipment, wherein, turbine set 5
Including the first turbine 51 and the second turbine 52, the first turbine 51 is coaxially connected with the second turbine 52 with generator 9,
Reduction reaction device 3 and residual heat using device 6 are connected with the first turbine 51,4 and second turbine 52 of oxidation reaction apparatus
Connection.First turbine 51 and the second turbine 52 are used to drive same generator 9, to ensure that generator 9 can continue not
Interruption generate electricity.
Further, as shown in Figure 1, the present invention provides a kind of coal gas of converter generating equipment, wherein, residual heat using device
6 include condenser 61, and condenser 61 is connected with first turbine 51, water recovery device, carbon dioxide recovering apparatus respectively.
Condenser 61 is used to carry out heat exchange with the carbon dioxide of high temperature and vapor, to be recycled to heat and to titanium dioxide
Carbon gas and vapor cool down, so as to effectively realize that the sensible heat below 900 DEG C of 1 coal gas of converter can recycle.
Preferably, as shown in Figure 1, the present invention provides a kind of coal gas of converter generating equipment, wherein, nonaqueous dust cleaner 2
Outlet at bottom be connected with briquetting device 8.Briquetting device 8 is compressing by dust by the way of hot wafering, molding powder
Block can be directly used for converter 1 and make steel.
As shown in Fig. 2, present invention also offers a kind of coal gas of converter electricity-generating method, wherein, coal gas of converter electricity-generating method bag
Include：
Step 1：Level-one cooling is carried out to coal gas of converter, recycles thermal energy；
Step 2：Dry method dust is carried out to the coal gas of converter by level-one cooling；
Step 3：To carrying out reduction reaction by the coal gas of converter of dry method dust, carbon dioxide and vapor are obtained,
Generated electricity by carbon dioxide and vapor；
Step 4：Two level cooling is carried out to carbon dioxide and vapor, recycles thermal energy, the titanium dioxide after being cooled down
Carbon gas and liquid water.
It will illustrate the concrete technology flow process of the coal gas of converter electricity-generating method of the present invention with a specific embodiment below：
Assuming that it be 36min that the cycle is made steel in converter 1, wherein 0min~10min for Primary period preparation stage, 10min~
26min is the blowing stage, and 26min~36min is the tapping stage.
In converting process, oxygen decarburization produces a large amount of coal gas of converter in converter 1, and the coal gas of converter temperature of output is about
For 1500 DEG C, the coal gas of converter of high temperature dust initially enters the tube wall of gasification cooling flue, coal gas of converter and gasification cooling flue,
By cooling water indirect heat exchange, coal gas of converter temperature is down to 900 DEG C by 1500 DEG C, and cooling water heat absorption flashes to saturated vapor；
900 DEG C of coal gas of converter enters ceramic filter and carries out dedusting；
Coal gas of converter (main component CO) after dedusting is sent in reduction reactor 31, reduction reactor 31 and first
Cyclone separator 32 forms recirculating fluidized bed, and in reduction reactor 31, CO carries out reduction reaction with oxidation state oxygen carrier, with Cu
Exemplified by base load oxysome, the pure CO of high temperature and pressure is generated2Gas, reaction equation are：
CuO+CO=Cu+CO2△ H=-31.595kcal/mol
The pure CO of high temperature and pressure of reaction generation in reduction reactor 312Gas, is sent to through the first cyclone separator 32
Do work in first turbine 51, drive generator 9 to generate electricity, it is cold from the gas of the first turbine 51 out, condensed device 61
Congeal into pure CO2Gas and water, pure CO2Gas is recycled；
The as-reduced metal oxygen carrier of generation is sent in oxidation reactor 41 in reduction reactor 31, through air blower 43
Air is sent into oxidation reactor 41 at the same time, 41 and second cyclone separator 42 of oxidation reactor composition recirculating fluidized bed, production
Cu is oxidized to CuO and sent to recycling in reduction reactor 31 by raw oxidation reaction, and reaction equation is：
Cu+1/2O2=CuO △ H=-35.971kcal/mol
The N come out from the second cyclone separator 422Pneumatic transmission does work into the second turbine 52, drives generator 9 to be sent out
Electricity.
Compared with prior art, advantages of the present invention is as follows：
The present invention carries out dedusting by dry method to coal gas of converter, and coal gas of converter will not be dropped during dedusting
Temperature, makes coal gas of converter still have higher temperature, and the energy after coal gas of converter carries out reduction reaction before reduction reaction is carried out
The carbon dioxide and vapor with higher temperature are obtained, by being returned to the heat of carbon dioxide and vapor
Receive, can effectively reduce the loss of heat and the waste of the energy.
The present invention coal gas of converter will not be diffused during coal gas of converter is handled, reduce economic loss and
Environmental pollution.
The present invention can obtain the very high carbon dioxide of purity by carrying out reduction reaction to coal gas of converter.
The present invention provides gas to turbine set at the same time by oxidation reaction apparatus and reduction reaction device, can realize power generation
Machine continuously continual power generation.
The present invention need not set the components such as explosion venting valve, gas chamber in use, can effectively simplify structure.
The foregoing is merely the schematical embodiment of the present invention, the scope of the present invention is not limited to.It is any
Those of ordinary skill in the art, made equivalent variations are with repairing on the premise of the design of the present invention and principle is not departed from
Change, the scope of protection of the invention should all be belonged to.
Claims (10)
1. a kind of coal gas of converter generating equipment, it is characterised in that the coal gas of converter generating equipment is connected with converter, the converter
Coal gas generating equipment includes nonaqueous dust cleaner, reduction reaction device, oxidation reaction apparatus, turbine set, generator and and waste heat
Using device, the converter, the nonaqueous dust cleaner, the reduction reaction device and the oxidation reaction apparatus sequential communication,
And the reduction reaction device, the oxidation reaction apparatus, the residual heat using device and the generator with the turbine
Unit connects.
2. coal gas of converter generating equipment according to claim 1, it is characterised in that the nonaqueous dust cleaner is ceramic filter
Device.
3. coal gas of converter generating equipment according to claim 1 or 2, it is characterised in that the top exit of the converter leads to
Overflash cooling stack is connected with the entrance of the nonaqueous dust cleaner, and the gasification cooling flue passes through threeway and steam energy storage
Device connects.
4. coal gas of converter generating equipment according to claim 1, it is characterised in that the reduction reaction device includes reduction
Reactor and the first cyclone separator, the outlet of the nonaqueous dust cleaner are connected with the first entrance of the reduction reactor, institute
The gas vent for stating reduction reactor is connected with the entrance of first cyclone separator, the bottom of first cyclone separator
Outlet is connected with the second entrance of the reduction reactor, top exit and the turbine set of first cyclone separator
Connection, the outlet at bottom of the reduction reactor connects with the oxidation reaction apparatus, and the oxidation reaction apparatus with it is described
The 3rd entrance connection of reduction reactor.
5. coal gas of converter generating equipment according to claim 4, it is characterised in that the oxidation reaction apparatus includes oxidation
Reactor, the second cyclone separator and air blower, the outlet at bottom of the reduction reactor and the first of the oxidation reactor
Entrance connects, and the gas vent of the oxidation reactor is connected with second cyclone separator, second cyclone separator
Outlet at bottom connected with the second outlet of the oxidation reactor, the top exit of second cyclone separator and the whirlpool
Unit connection is taken turns, the outlet at bottom of the oxidation reactor is connected with the 3rd entrance of the reduction reactor, the air blower
Connected with the 3rd entrance of the oxidation reactor, the 3rd entrance of the oxidation reactor is opened in the oxidation reactor
Top.
6. coal gas of converter generating equipment according to claim 5, it is characterised in that the reduction reactor and the oxidation
Oxygen carrier is equipped with reactor, the pipeline for connecting the outlet at bottom and the oxidation reactor of the reduction reactor is equipped with
First pump housing；The pipeline of the outlet at bottom and the reduction reactor that connect the oxidation reactor is equipped with second pump housing.
7. according to the coal gas of converter generating equipment described in claim 1,2,4 or 5, it is characterised in that the turbine set includes
First turbine and the second turbine, first turbine are coaxially disposed with second turbine and connect with the generator
Connect, the reduction reaction device and the residual heat using device are connected with first turbine, the oxidation reaction apparatus
Connected with second turbine.
8. coal gas of converter generating equipment according to claim 7, it is characterised in that the residual heat using device includes condensation
Device, the condenser are connected with first turbine, water recovery device, carbon dioxide recovering apparatus respectively.
9. coal gas of converter generating equipment according to claim 1, it is characterised in that the outlet at bottom of the nonaqueous dust cleaner
It is connected with briquetting device.
10. a kind of coal gas of converter electricity-generating method, it is characterised in that the coal gas of converter electricity-generating method includes：
Step 1：Level-one cooling is carried out to coal gas of converter, recycles thermal energy；
Step 2：Dry method dust is carried out to the coal gas of converter by level-one cooling；
Step 3：To carrying out reduction reaction by the coal gas of converter of dry method dust, carbon dioxide and vapor are obtained, is passed through
Carbon dioxide and vapor generate electricity；
Step 4：Two level cooling is carried out to carbon dioxide and vapor, recycles thermal energy, the carbon dioxide gas after being cooled down
Body and liquid water.
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|---|---|---|---|
| CN201711371015.9A CN107905860B (en) | 2017-12-19 | 2017-12-19 | Converter gas power generation equipment and method |
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|---|---|---|---|
| CN201711371015.9A CN107905860B (en) | 2017-12-19 | 2017-12-19 | Converter gas power generation equipment and method |
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| CN107905860B CN107905860B (en) | 2024-04-19 |
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| US20100146982A1 (en) * | 2007-12-06 | 2010-06-17 | Air Products And Chemicals, Inc. | Blast furnace iron production with integrated power generation |
| CN102052102A (en) * | 2010-11-26 | 2011-05-11 | 绍兴文理学院 | Coal chemical chain combustion generating process and device |
| KR20120021051A (en) * | 2010-08-31 | 2012-03-08 | 한국전력공사 | Integrated gasification combined cycle power system |
| CN206266644U (en) * | 2016-12-14 | 2017-06-20 | 北京京诚泽宇能源环保工程技术有限公司 | A kind of blast furnace gas dry cleaning system |
| CN207761720U (en) * | 2017-12-19 | 2018-08-24 | 北京京诚泽宇能源环保工程技术有限公司 | A kind of coal gas of converter generating equipment |
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2017
- 2017-12-19 CN CN201711371015.9A patent/CN107905860B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100146982A1 (en) * | 2007-12-06 | 2010-06-17 | Air Products And Chemicals, Inc. | Blast furnace iron production with integrated power generation |
| KR20120021051A (en) * | 2010-08-31 | 2012-03-08 | 한국전력공사 | Integrated gasification combined cycle power system |
| CN102052102A (en) * | 2010-11-26 | 2011-05-11 | 绍兴文理学院 | Coal chemical chain combustion generating process and device |
| CN206266644U (en) * | 2016-12-14 | 2017-06-20 | 北京京诚泽宇能源环保工程技术有限公司 | A kind of blast furnace gas dry cleaning system |
| CN207761720U (en) * | 2017-12-19 | 2018-08-24 | 北京京诚泽宇能源环保工程技术有限公司 | A kind of coal gas of converter generating equipment |
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| CN107905860B (en) | 2024-04-19 |
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