CN106786619A - A kind of induction furnace iron bathes the peak load regulation network system and method for coal gasification - Google Patents
A kind of induction furnace iron bathes the peak load regulation network system and method for coal gasification Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
- F27B14/061—Induction furnaces
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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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
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The present invention provides the peak load regulation network system and method that a kind of induction furnace iron bathes coal gasification, the system includes electric supply installation and induction furnace, the electric supply installation connects the induction furnace, the induction furnace includes body of heater and the inductor for being heated to body of heater, the body of heater is provided with dog-house, substance nozzle, gas vent, slag exit, the substance nozzle is arranged on the sidewall of the furnace body, and the substance nozzle and the angle of the sidewall of the furnace body are 20 ° ~ 60 °；The electric supply installation is connected with power network.Methods described is to use said system, and first heat induced in-furnace temperature reaches 1400 ~ 1550 DEG C；The coal dust and calcium carbonate mixed-powder for being carried using preheating gasifying agent again are sprayed into induction furnace and carry out coal gasification reaction；Finally coal gas of high temperature is used to prepare town gas or chemical products.The present invention has strong adaptability, and not by season, territory restriction, peak modulation capacity is strong, it is fast, easy to control to respond, and efficient energy conversion is high, the advantages of environmental protection and economy.
Description
Technical field
The present invention relates to the comprehensive utilization of power network electric energy, and in particular to a kind of induction furnace iron bathes the peak load regulation network system of coal gasification
System and method.
Background technology
In recent years, with the change of whole society's power structure, major electric-net valley peak differences increasingly increase, when there is the electricity consumption peak phase
The peak load of generating set is difficult to meet user's needs and power cuts to limit consumption of having to, but occurs electricity mistake again in the electricity consumption paddy phase
Surplus situation.Because network load distributes unbalanced with the time, the lance between the peak modulation capacity of power network and objectively peak regulation needs
The utilization rate that shield causes network load is low.According to statistics, more than 300,000 kilowatts thermal power generating equipment annual occupancies of China in 2014
Only 45%, therefore, effective peak regulation method is found, develop new peak load regulation network technology imperative.
Current peak regulation technique, unit operation peak regulation and the class of storage peak regulation two are broadly divided into according to peak regulation method.Unit is grasped
Making peak regulation mainly includes the idle operation of few vapour, underrun and two-shift operation.Lack when vapour is idle to operate in low power consumption and incite somebody to action
The load of unit is reduced to zero, unit is in the idle state of rated speed rotation；Underrun is by changing unit
Load meets the peak regulation demand of power network；Two-shift operation according to the Distribution dynamics of the daily load curve of power network, in unit on daytime
Normal operation, night then shuts down 6-8h in network load low ebb.There is energy wave in few idle operation of vapour and underrun
Take serious problem.The peak regulation method of two-shift operation is then strict to equipment operation parameter requirement, and security is relatively low.
Storage peak regulation is that the electricity in power network low ebb period is stored by energy storage equipment, and used in peak of power consumption
A kind of method.The method can reduce power network peak-valley difference, reach the purpose of peak load shifting.Storage peak regulation can divide according to way of energy storage
For：Mechanical energy accumulator, heat energy accumulation of energy, electrochemistry accumulation of energy and chemical energy accumulation of energy.
Mechanical energy accumulator, is that electricity is converted into mechanical energy storage in low power consumption, in peak times of power consumption again by machine
Tool can be converted into a kind of method of electric energy.Mechanical energy accumulator, mainly includes Caes and water-storage.Wherein, compress
Air energy-storage is a kind of method that the interior energy for converting electrical energy into compressed air by large air compressor is laid in.Work as electricity
When can be rich, air is pressed into underground gas storage room by compressor carries out energy storage；During peak times of power consumption, compressed air promotes turbine
Unit generation.The interior energy of compressed air is first converted electrical energy into due to the method, electric energy is then re-converted into again, therefore can cause
Power consumption is big, efficient energy conversion is low and the adverse consequences such as less economical.Water-storage is using low power consumption period
Unnecessary load drives the water pump to carry out water-storage, and generated electricity using the water-driven hydraulic turbine of cistern in peak times of power consumption
The method of kind.The method is more serious by season, territory restriction, it is impossible to carry out large-scale promotion.
Heat energy accumulation of energy, is that electricity is converted into thermal energy storage in low power consumption, and peak times of power consumption again convert heat energy
It is a kind of method of electric energy.Such as a kind of single tank regenerative apparatus, the heat storage medium in tank, accumulation of heat are stored in using valley period power heating
Medium heat-absorbing energy-accumulating, is released energy in peak times of power consumption and is used by energy utilization device.The advantage of this device is
Apparatus structure is simple, compact, easy to use, but the limited scope of application for causing the device of amount of stored heat is smaller.In contrast, cold-storage
Air-conditioning technical be using night dip electric refrigeration, to meet peak air conditioner load the need for.It is similar to water-storage, the method
It is more serious by season, territory restriction.
Electrochemistry accumulation of energy, valley period power is stored using battery, fuel cell, and storage is discharged in the electricity consumption peak phase
Electric energy.The efficient energy conversion of the method is high, but because operating cost is high, memory capacity is small, its range of application is subject to one
Determine the restriction of degree ground.
Chemical energy accumulation of energy, electric energy when being by the electricity consumption paddy phase is converted into one kind side that the chemical energy of high-quality is stored
Method, such as carries out water electrolysis hydrogen production using valley period power.Although the added value of product of water electrolysis hydrogen production is high, cost of investment relatively also compared with
It is high.In addition, also have for valley period power to be applied to such as electrolytic aluminium high energy-consuming industry.Because there is with serious pollution asking in aluminum electrolysis technology
Topic, and in today of aluminium production capacity surplus, peak load regulation network is carried out by aluminum electrolysis technology not dominant.
Therefore, a kind of new energy accumulating technique is developed to be significant.
The content of the invention
For the problem that prior art is present, the present invention provide a kind of induction furnace iron bath coal gasification peak load regulation network system and
Method, the system and method is based on iron and bathes Coal Gasification Technology, i.e., prepare coal gas of high temperature using valley period power, and then prepare city coal
Gas or other chemical products, belong to a kind of new chemical energy energy accumulating technique.The technical solution adopted by the present invention is：
A kind of induction furnace iron bathes the peak load regulation network system of coal gasification, including electric supply installation and induction furnace, the electric supply installation connection
The induction furnace, the induction furnace includes body of heater and the inductor for being heated to body of heater, and the body of heater is provided with dog-house, material
Nozzle, gas vent, slag exit, the substance nozzle are arranged on the sidewall of the furnace body, and the substance nozzle and the stove
The angle of body sidewall is 20 ° ~ 60 °；The electric supply installation is connected with power network.
Further, the system also includes heat exchanger and deduster, and the heat exchanger connects the induction furnace, described to remove
Dirt device connects the heat exchanger.
Further, the electric supply installation includes the transformer that is connected with power network, the transformer be sequentially connected contactor,
Current transformer, capacitor and reactor and supplement electric capacity, induction furnace described in the supplement capacitance connection.
Further, the inductor is induction coil.
Further, the induction furnace uses horizontal induction furnace or groove formula induction furnace.
Further, the system can also include town gas processing unit, and the town gas processing unit includes
Gas composition adjusting means and methanation device, the gas composition adjusting means connect the deduster, for passing through
CO and H in vapor transformationreation regulation synthesis gas2Mol ratio be 1:3, the methanation device is used for will be from the synthesis
Gas component adjusting device gaseous mixture out is completely converted into town gas by methanation reaction.
A kind of induction furnace iron bathes the peak load regulation network method of coal gasification, is to use above-mentioned peak load regulation network system, including following step
Suddenly：
（1）Actual power consumption according to the paddy phase determines peak load regulation network amount, sets power load, and determine the peak load regulation network system
Quantity；If using 1 set of peak load regulation network system, being directly entered step（2）；If will be many using many set peak load regulation network systems
Step is entered back into after the system parallel connection of set peak load regulation network（2）；
（2）Scrap iron/steel scrap is added into induction furnace, and electric energy is introduced into heating fusing scrap iron/steel scrap to temperature in induction furnace and reached
1400 ~ 1550 DEG C and keep constant；
（3）Gasifying agent is preheated to 200 ~ 400 DEG C, coal dust and the calcium carbonate mixing that preheating gasifying agent is carried are sprayed into from substance nozzle
Coal gasification reaction is carried out in powder to induction furnace, coal gas of high temperature is obtained；
（4）Coal gas of high temperature is used to prepare town gas or chemical products.
In the above method, the gasifying agent is CO2, vapor, richness CO2One or more mixing in flue gas.
In the above method, it is described preheating gasifying agent carry coal dust and calcium carbonate mixed-powder, wherein gasifying agent, coal dust and
The mol ratio of the O in C and gasifying agent in calcium carbonate is 1:0.9~1:1.5, CaCO3It is 1 with the mol ratio of the S in coal dust:1~
2.5:1。
In the above method, described to be used to coal gas of high temperature prepare town gas, detailed process is：Coal gas of high temperature is passed through successively
Enter gas composition adjusting means after heat exchanger heat exchange, deduster dedusting, with vapor reaction generation H2, and control synthesis gas
The middle CO and H for being generated2Mol ratio be 1:3；It is anti-by there are methanations in 250 ~ 300 DEG C in gaseous mixture feeding methanation device
Town gas should be obtained.
In the above method, described that coal gas of high temperature exchanges heat through heat exchanger successively, heat transferring medium is water in the heat exchanger, is changed
The vapor obtained after heat can be used as gasifying agent.
In the above method, the chemical products include artificial oil, methyl alcohol, ethylene glycol, oxo-alcohols, dimethyl ether and low-carbon (LC) alkene
The product with CO as primary raw material such as hydrocarbon.
Reaction equation of the present invention is：
CaCO3=CaO+CO2(g) ∆H1=+110.39kJ/mol (1)
CaO+S+C=CaS+CO(g) ∆H2=-26.85kJ/mol (2)
C+CO2(g)=2CO(g) ∆H3=+161.81kJ/mol (3)
C+H2O(g)=CO(g)+H2(g) ∆H4=+135.0kJ/mol (4)
CO(g)+H2O(g)=CO2(g)+H2(g) ∆H5=+39.22kJ/mol (5)
CO(g)+3H2=CH4(g)+ H2O(g) ∆H6=-216.45kJ/mol (6)
CO2(g)+4H2(g)=CH4(g)+2H2O(g) ∆H7=-202.51kJ/mol (7)
∆H1~∆H7Represent the reaction heat of reaction (1) ~ (7).
Coal gasification reaction is strong endothermic reaction, using high temperature liquid iron as heat carrier, the heat for needed for coal gasification reaction is provided
Amount.Molten iron in molten bath also has catalytic action to coal gasification reaction, can improve coal gasification reaction speed, improves gas composition.
Below by taking the paddy phase Peak Load of 50MW as an example, according to the conservation of energy and the conservation of mass to the material needed for the system
Product with generation is calculated, and method is as follows：
The coal dust of selection is two kinds of colm and fat coal, and the Industrial Analysis and elementary analysis of two kinds of coals are as shown in table 1：
The Industrial Analysis of the colm of table 1 and fat coal and elementary analysis result
Design conditions：By the way of electromagnetic induction heating, electric input power Pa=50MW, electrothermal efficiency is 74%；Gasifying agent is
CO2, C and CO in coal dust2Mol ratio takes 1:1, S and CaCO in coal dust3Mol ratio take 1:1；Molten iron temperature is in induction furnace
1450℃。
When using fat coal, the energy balance relations that system is present are：
Electric heating input power P+ gasifying agents CO2, coal dust and CaCO3Physics heat input power Pm=gasification reaction Endothermic power PInhale+
Physical heat of ash dregs power output PAsh+CaCO3Decompose thermal output PStone+ CaS generates heat absorption power PCaS+ aerogenesis physical thermal is defeated
Go out power PProduce+ other radiation loss power PsLose, wherein P, Pm、PInhale、PAsh、PStone、PCaS、PProduce、PLoseUnit be MW.
Into the thermal power of system：
Electric heating input power P：P=50×0.74=37；
If the quality of gasification of coal is m in the unit intervalcoal, kg/s；
The physical thermal power P that coal dust is brought into1, kJ/s：P1=CpcoalmcoalTcoal=1.21mcoal×20（℃）=24.2mcoal, wherein
CpcoalRepresent the specific heat of coal dust, KJ/ (kg DEG C)；TcoalIt is coal dust temperature, DEG C；
The CO of consumption in unit interval2Quality mCO2, kg/s：mCO2=（85.87%mcoal/12-0.49%mcoal/32×2）×44；
The physical thermal power P that gasifying agent is brought into2, kJ/s：P2=CpCO2 mCO2TCO2=0.996 mCO2×200（℃）=
625.5103mcoal, wherein CpCO2Represent the specific heat of carbon dioxide, KJ/ (kg DEG C)；TCO2It is carbon dioxide temperature, DEG C；
The CaCO of consumption in unit interval3Quality mCaCO3, kg/s：mCaCO3= mcoal×0.49%×100/32；
CaCO3The physical thermal power P brought into3, kJ/s：P3=CpCaCO3mCaCO3TCaCO3=0.84mCaCO3×20（℃）=
0.2573mcoal；
Then Pm=P1+P2+P3 =0.6490mcoal, wherein CpCaCO3Represent the specific heat of calcium carbonate, KJ/ (kg DEG C)；TCaCO3It is carbon
Sour calcium temperature, DEG C；
Leave the thermal power of system：
CaS generates heat absorption power PCaS：PCaS=ms/Ms×ΔH2=0.49%mcoal/0.032×26.85=0.0041mcoal, its
Middle msRepresent the quality of generation CaS in the unit interval, kg/s；MsRepresent the molal weight of CaS, kg/mol；
Gasification reaction Endothermic power PInhale：
PInhale=mc/Mc×ΔH3=(0.8587mcoal/0.012-0.0049mcoal/0.0032)×161.81/1000=
11.5541mcoal, wherein mcRepresent the phosphorus content of consumption coal dust in the unit interval, kg/s；McRepresent the molal weight of carbon, kg/
mol；
Reaction produces the quality m of lime-ash in unit intervalslag, kg/s：mslag= mcoal×11.73%=0.1173mcoal；
Physical heat of ash dregs power output PAsh：PAsh=CpslagmslagTIron=0.92mslag×1450（℃）=0.1565mcoal；
Wherein, CpslagIt is the specific heat of slag, KJ/ (kg DEG C)；TIronIt is molten iron temperature, DEG C；
Coal gasification reaction conversion ratio is calculated by 100%, the quality m of CO in synthesis gasCO, kg/s：
mCO=mc×28/12×2=(85.87%mcoal/12-0.49%mcoal/32)×28×2；
Aerogenesis physics thermal output PProduce：PProduce=CpCOmCOTCO=1.16×mCO×1450（℃）=6.7258mcoal；Wherein, CpCOFor
The specific heat of CO, KJ/ (kg DEG C)；TCOIt is CO temperature, DEG C；
CaCO3Decompose thermal output PStone：PStone= mStone/MStone×ΔH1=0.49%mcoal/0.032×110.39=0.0169mcoal；
Wherein, mStoneRepresent the quality of consumption calcium carbonate in the unit interval, kg/s；MStoneRepresent the molal weight of calcium carbonate, kg/mol；
Other heat loss power PsLoseThe 5% of its maximal input is taken, then：PLose=50×5%=2.5；
It is calculated mcoal=1.9391kg/s=6.9808t/h；
Computational methods are identical with fat coal when using colm, it can thus be concluded that throwing coal 3.0228kg/s=during using colm
10.8819t/h。
MaterialBalance Computation table is as shown in table 2：
Table 2 is with CO2It is the MaterialBalance Computation table of gasifying agent
Similarly can MaterialBalance Computation table of proper use vapor when cooking gasifying agent, as shown in table 3：
Table 3 is with H2O is the MaterialBalance Computation table of gasifying agent
Situation when being used to produce town gas to synthesis gas below carries out Material calculation：
Design conditions：Fat coal uses CO2The synthesis gas produced during as gasifying agent；
CO and H in synthesis gas2Gross mass be 27.9742t/h, (5) are mainly reacted in synthesis gas converting means by CO
With H2Mol ratio be adjusted to 1:3.
CO+H2O=CO2+H2 ∆H5=+39.22kJ/mol (5)
Thus, it is supposed that the amount for being passed through vapor is X t/h, then according to CO and H2Required mol ratio, can obtain：
nCO/nH2=(mCO/28-X/18)/(X/18+nCoal-H2)=1/3
Wherein, nco represents the amount of the material that CO is produced in the unit interval, mol/s；NH2 represents the thing that H2 is produced in the unit interval
The amount of matter, mol/s；MCO represents the quality that CO is produced in the unit interval, kg/s；MH2 represents the matter that H2 is produced in the unit interval
Amount, kg/s, ncoal-H2Represent pyrolysis of coal, mol/s in the unit interval.It can thus be concluded that in synthesis gas converting means vapor need
The amount of asking X=13.3870t/h, so by m in the synthesis gas after conversionCO=7.1499t/h, mH2=1.5321t/h.The life of methane
It is 4.0854t/h into amount.
The demand of vapor in synthesis gas converting means and the final amount for producing methane can be similarly obtained in the case of remaining, such as
Shown in table 4：
The mass balance table of the methane of table 4 generation
Beneficial effects of the present invention are：The present invention has strong adaptability, and not by season, territory restriction, peak modulation capacity is strong, response
Hurry up, it is easy to control, efficient energy conversion is high, the advantages of environmental protection and economy；Both the peak load regulation network being on the rise is solved the problems, such as, and can be produced
Raw high-quality coal gas/synthesis gas, produced coal gas/synthesis gas directly as industrial chemicals except that can carry out chemical products synthesis
Outward, it may also be used for produce town gas, contribute to alleviate the short present situation of China's gas supply.
Brief description of the drawings
Fig. 1 is the structural representation of peak load regulation network system of the invention.
Fig. 2 is the structural representation of the horizontal induction furnace of peak load regulation network system of the invention.
Fig. 3 is the structural representation of the groove formula induction furnace of peak load regulation network system of the invention.
In Fig. 1 ~ 3,1. transformer；2. contactor；3. current transformer；4. capacitor；5. reactor；6. compensating electric capacity；
7. induction furnace；8. heat exchanger；9. deduster；10. gas composition adjusting means；11. induction coils；12. dog-houses；13. stoves
Body；14. gas vents；15. slag exits；16. substance nozzles；17. molten iron；18. channels；19. methanation devices.
Specific embodiment
The present invention is described in further details with specific embodiment below in conjunction with the accompanying drawings, described is to solution of the invention
Release rather than restriction.
Fig. 1 provides the structural representation of peak load regulation network system of the invention, and the peak load regulation network includes electric supply installation, sense
Stove 7, heat exchanger 8 and deduster 9, the electric supply installation is answered to connect the induction furnace 7, the induction furnace includes body of heater and for giving
The inductor of body of heater heating, the body of heater is provided with dog-house 12, substance nozzle 16, gas vent 14, slag exit 15, the thing
Material nozzle 16 is arranged on the sidewall of the furnace body, and the substance nozzle and the angle of the sidewall of the furnace body are 20 ° ~ 60 °；The confession
Electric installation is connected with power network；The heat exchanger 8 connects the induction furnace 7, and the deduster 9 connects the heat exchanger 8.
The electric supply installation includes the transformer 1 being connected with power network, and it is mutual that the transformer 1 is sequentially connected contactor 2, electric current
Sensor 3, capacitor 4 and reactor 5 and supplement electric capacity 6, the supplement electric capacity 6 connect the induction furnace.
The induction furnace uses horizontal induction furnace（As shown in Figure 2）Or groove formula induction furnace（As shown in Figure 3）.
The inductor is induction coil.
The system also can be set includes town gas processing unit, the town gas processing unit including synthesis gas into
Divide adjusting means and methanation device, the gas composition adjusting means connects the deduster, for becoming by vapor
Change CO and H in reaction regulation coal gas of high temperature2Mol ratio be 1:3, the methanation device is used for will be from the gas composition
Adjusting means gaseous mixture out is completely converted into town gas by methanation reaction.
Embodiment 1
A kind of induction furnace iron bathes the peak load regulation network method of coal gasification, is using peak load regulation network system as shown in Figure 1, the system
Using horizontal induction furnace as shown in Figure 2：Body of heater is U-shaped structure, and crucible horizontal component internal diameter is 1.5m, 2m long；Crucible is vertical
Part internal diameter 2m, 3m high；The peak load regulation network method is comprised the following steps：
（1）Actual power consumption according to the paddy phase determines peak load regulation network amount, sets power load；
（2）Scrap iron/steel scrap is added into induction furnace, and electric energy is introduced into heating fusing scrap iron/steel scrap to temperature in induction furnace and reached
1450 DEG C and keep constant, molten iron level 2m high, quality is 76t；
（3）By gasifying agent CO2200 DEG C are preheated to, preheating CO is sprayed into from substance nozzle2The coal dust and calcium carbonate mixed-powder of carrying
Coal gasification reaction is carried out into induction furnace, wherein pulverized coal flow is 6.98t/h, CO2Flow is 21.98t/h, CaCO3Powder is
0.29t/h, coal dust, calcium carbonate and CO2In contained C and CO2In O mol ratio be 1:1, CaCO3With rubbing for the S in coal dust
You are than being 1:1, obtain coal gas of high temperature, wherein CO and H2Yield be 22379m3/ h and 500m3/h；What is produced in coal gasifier is molten
Slag is discharged by slag exit；
（4）Coal gas of high temperature is carried out into waste heat recovery by heat exchanger, in heat exchanger, coal gas of high temperature is exchanged heat with water, coal gas
Temperature can be down to 300 DEG C or so, and the coal gas after cooling enters purifying and dedusting in deduster.
Clean gas after dedusting have two kinds of approach：One side clean gas can carry out chemical industry product directly as industrial chemicals
Product synthesize；Another aspect clean gas enter gas composition adjusting means, with vapor reaction generation H2, and control CO and institute
The H of generation2Mol ratio be 1:3；There is methanation reaction during gaseous mixture is sent into syngas reactor（Reaction equation (6), (7)）
Town gas is obtained, methane production amount is 5719m3/h。
In the above method, the chemical products include artificial oil, methyl alcohol, ethylene glycol, oxo-alcohols, dimethyl ether and low-carbon (LC) alkene
The product with CO as primary raw material such as hydrocarbon.
Embodiment 2
A kind of induction furnace iron bathes the peak load regulation network method of coal gasification, is using peak load regulation network system as shown in Figure 1, the system
Using groove formula induction furnace as shown in Figure 3：Body of heater is cylindrical crucible, and crucible diameter is 2.16m, 4m high；The power network is adjusted
Peak method is comprised the following steps：
（1）Actual power consumption according to the paddy phase determines peak load regulation network amount, sets power load；
（2）Scrap iron/steel scrap is added into induction furnace, and electric energy is introduced into heating fusing scrap iron/steel scrap to temperature in induction furnace and reached
1400 DEG C and keep constant, molten iron level 3m high, quality is 86t；
（3）Gasifying agent vapor is preheated to 400 DEG C, the coal dust and calcium carbonate for spraying into preheating vapor carrying from substance nozzle are mixed
Coal gasification reaction is carried out in conjunction powder to induction furnace, wherein pulverized coal flow is 7.86t/h, and vapor flow is 10.12t/h,
CaCO3Powder is 0.32t/h, and the mol ratio of the O in coal dust and calcium carbonate in contained C and vapor is 1:1, CaCO3With coal dust
In S mol ratio be 1:1, obtain coal gas of high temperature, wherein CO and H2Yield be 12598m3/ h and 13161m3/h；Coal gasification
The slag produced in stove is discharged by slag exit；
（4）Coal gas of high temperature is carried out into waste heat recovery by heat exchanger, in heat exchanger, coal gas of high temperature is exchanged heat with water, coal gas
Temperature can be down to 300 DEG C or so, and the coal gas after cooling enters purifying and dedusting in deduster.
Clean gas after dedusting have two kinds of approach：One side clean gas can carry out chemical industry product directly as industrial chemicals
Product synthesize；Another aspect clean gas enter gas composition adjusting means, with vapor reaction generation H2, and control CO and institute
The H of generation2Mol ratio be 1:3；There is methanation reaction during gaseous mixture is sent into syngas reactor（Reaction equation (6), (7)）
Town gas is obtained, methane production amount is 6439m3/h。
In the above method, the chemical products include artificial oil, methyl alcohol, ethylene glycol, oxo-alcohols, dimethyl ether and low-carbon (LC) alkene
The product with CO as primary raw material such as hydrocarbon.
Embodiment 3
A kind of induction furnace iron bathes the peak load regulation network method of coal gasification, is to use many set peak load regulation network systems as shown in Figure 1, described
Many set systems use horizontal induction furnace as shown in Figure 2：Body of heater is U-shaped structure, and crucible horizontal component internal diameter is 1.5m, 2m long；
Crucible vertical component internal diameter 2m, 3m high；The peak load regulation network method is comprised the following steps：
（1）Actual power consumption according to the paddy phase determines peak load regulation network amount, sets power load, and will cover peak load regulation network system simultaneously more
Connection；
（2）Scrap iron/steel scrap is added into induction furnace, and electric energy is introduced into heating in induction furnace in parallel by electric supply installation and melt useless
Iron/steel scrap to temperature reaches 1450 DEG C and keeps constant, molten iron level 2m high, and quality is 76t；
（3）By gasifying agent CO2200 DEG C are preheated to, preheating CO is sprayed into from substance nozzle2The coal dust and calcium carbonate mixed-powder of carrying
Coal gasification reaction is carried out into induction furnace, wherein pulverized coal flow is 6.98t/h, CO2Flow is 21.98t/h, CaCO3Powder is
0.29t/h, coal dust, calcium carbonate and CO2In contained C and CO2In O mol ratio be 1:1, CaCO3With rubbing for the S in coal dust
You are than being 1:1, obtain coal gas of high temperature, wherein CO and H2Yield be 22379m3/ h and 500m3/h；What is produced in coal gasifier is molten
Slag is discharged by slag exit；
（4）Coal gas of high temperature is carried out into waste heat recovery by heat exchanger, in heat exchanger, coal gas of high temperature is exchanged heat with water, coal gas
Temperature can be down to 300 DEG C or so, and the coal gas after cooling enters purifying and dedusting in deduster.
Clean gas after dedusting have two kinds of approach：One side clean gas can carry out chemical industry product directly as industrial chemicals
Product synthesize；Another aspect clean gas enter gas composition adjusting means, with vapor reaction generation H2, and control CO and institute
The H of generation2Mol ratio be 1:3；There is methanation reaction during gaseous mixture is sent into syngas reactor（Reaction equation (6), (7)）
Town gas is obtained, methane production amount is 5719m3/h。
In the above method, the chemical products include artificial oil, methyl alcohol, ethylene glycol, oxo-alcohols, dimethyl ether and low-carbon (LC) alkene
The product with CO as primary raw material such as hydrocarbon.
Claims (10)
1. a kind of induction furnace iron bathes the peak load regulation network system of coal gasification, it is characterised in that described including electric supply installation and induction furnace
Electric supply installation connects the induction furnace, and the induction furnace includes body of heater and the inductor for being heated to body of heater, and the body of heater sets
There are dog-house, substance nozzle, gas vent, slag exit, the substance nozzle is arranged on the sidewall of the furnace body, and the material
Nozzle is 20 ° ~ 60 ° with the angle of the sidewall of the furnace body；The electric supply installation is connected with power network.
2. a kind of induction furnace iron according to claim 1 bathes the peak load regulation network system of coal gasification, it is characterised in that the system
System also includes heat exchanger and deduster, and the heat exchanger connects the induction furnace, and the deduster connects the heat exchanger.
3. a kind of induction furnace iron according to claim 2 bathes the peak load regulation network system of coal gasification, it is characterised in that the confession
Electric installation includes the transformer being connected with power network, and the transformer is sequentially connected contactor, current transformer, capacitor and reactance
Device and supplement electric capacity, induction furnace described in the supplement capacitance connection.
4. a kind of induction furnace iron according to claim 3 bathes the peak load regulation network system of coal gasification, it is characterised in that the sense
It is induction coil to answer device.
5. a kind of induction furnace iron according to claim 2 bathes the peak load regulation network system of coal gasification, it is characterised in that the sense
Stove is answered to use horizontal induction furnace or groove formula induction furnace.
6. a kind of induction furnace iron according to claim 2 ~ 5 any one claim bathes the peak load regulation network system of coal gasification
System, it is characterised in that the system can also include town gas processing unit, the town gas processing unit includes synthesis
Gas component adjusting device and methanation device, the gas composition adjusting means connect the deduster, for being steamed by water
CO and H in gas transformationreation regulation synthesis gas2Mol ratio be 1:3, the methanation device be used for will from the synthesis gas into
Point adjusting means gaseous mixture out is completely converted into town gas by methanation reaction.
7. a kind of induction furnace iron bathes the peak load regulation network method of coal gasification, is to use the peak load regulation network system described in claim 6, its
It is characterised by comprising the following steps：
（1）Actual power consumption according to the paddy phase determines peak load regulation network amount, sets power load, and determine the peak load regulation network system
Quantity；If using 1 set of peak load regulation network system, being directly entered step（2）；If will be many using many set peak load regulation network systems
Step is entered back into after the system parallel connection of set peak load regulation network（2）；
（2）Scrap iron/steel scrap is added into induction furnace, and electric energy is introduced into heating fusing scrap iron/steel scrap to temperature in induction furnace and reached
1400 ~ 1550 DEG C and keep constant；
（3）Gasifying agent is preheated to 200 ~ 400 DEG C, coal dust and the calcium carbonate mixing that preheating gasifying agent is carried are sprayed into from substance nozzle
Coal gasification reaction is carried out in powder to induction furnace, coal gas of high temperature is obtained；
（4）Coal gas of high temperature is used to prepare town gas or chemical products.
8. a kind of induction furnace iron according to claim 7 bathes the peak load regulation network method of coal gasification, it is characterised in that the gas
Agent is CO2, vapor, richness CO2One or more mixing in flue gas.
9. a kind of induction furnace iron according to claim 7 bathes the peak load regulation network method of coal gasification, it is characterised in that described pre-
Coal dust and calcium carbonate mixed-powder that hot gas agent is carried, the O in the wherein C and gasifying agent in gasifying agent, coal dust and calcium carbonate
Mol ratio be 1:0.9~1:1.5, CaCO3It is 1 with the mol ratio of the S in coal dust:1~2.5:1.
10. a kind of induction furnace iron according to claim 7 bathes the peak load regulation network method of coal gasification, it is characterised in that described to incite somebody to action
Coal gas of high temperature is used to prepare town gas, and detailed process is：Coal gas of high temperature is laggard through heat exchanger heat exchange, deduster dedusting successively
Enter gas composition adjusting means, with vapor reaction generation H2, and control the CO and H for being generated in synthesis gas2Mol ratio be
1:3；There is methanation reaction acquisition town gas in 250 ~ 300 DEG C during gaseous mixture is sent into methanation device.
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