CN106786619B - A kind of peak load regulation network system and method for induction furnace iron bath coal gasification - Google Patents
A kind of peak load regulation network system and method for induction furnace iron bath 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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- 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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Abstract
The present invention provides a kind of peak load regulation network system and method for induction furnace iron bath coal gasification, the system comprises power supply units and induction furnace, the power supply unit connects the induction furnace, the induction furnace includes furnace body and the inductor for heating to furnace body, the furnace body is equipped with feeding port, substance nozzle, gas vent, slag exit, the substance nozzle setting is in the sidewall of the furnace body, and the angle of the substance nozzle and the sidewall of the furnace body is 20 ° ~ 60 °；The power supply unit is connect with power grid.The method is using above system, and first heat induced in-furnace temperature reaches 1400 ~ 1550 DEG C；The coal dust and calcium carbonate mixed-powder carried again using preheating gasifying agent is sprayed into induction furnace and carries out coal gasification reaction；Coal gas of high temperature is finally used to prepare town gas or chemical products.The present invention is adaptable strong, not by season, territory restriction, the advantages that peak modulation capacity is strong, response is fast, easy to control, and efficient energy conversion is high, environmental protection and economy.
Description
Technical field
The present invention relates to the comprehensive utilizations of power grid electric energy, and in particular to a kind of peak load regulation network system of induction furnace iron bath coal gasification
System and method.
Background technique
In recent years, with the change of whole society's power structure, major electric-net valley peak difference increasingly increases, when there is the electricity consumption peak phase
The peak load of generating set is difficult to meet user and needs and power cuts to limit consumption of having to, but occurs electricity mistake again in the electricity consumption paddy phase
Surplus situation.Since network load distributes unbalanced lance between the peak modulation capacity of power grid and objectively peak regulation needs at any time
The utilization rate that shield causes network load is low.According to statistics, 300,000 kilowatts of China in 2014 or more thermal power generating equipment annual occupancy
Only 45%, therefore, effective peak regulation method is found, it is imperative to develop new peak load regulation network technology.
Current peak regulation technique is broadly divided into two class of unit operation peak regulation and storage peak regulation according to peak regulation method.Unit behaviour
Making peak regulation mainly includes the idle operation of few vapour, underrun and two-shift operation.Lacking will when vapour is idle to operate in low power consumption
The load of unit is reduced to zero, and unit is made to be in the idle state of rated speed rotation；Underrun is by changing unit
Load meets the peak regulation demand of power grid；Two-shift operation is according to the Distribution dynamics of the daily load curve of power grid, in unit on daytime
It operates normally, night then shuts down 6-8h in network load low ebb.Less there is energy wave in the idle operation of vapour and underrun
Take serious problem.The peak regulation method of two-shift operation then requires strictly equipment operation parameter, and safety is lower.
Storage peak regulation is to store the electricity in power grid low ebb period by energy storage equipment, and use in peak of power consumption
A kind of method.This method can reduce power grid peak-valley difference, achieve the purpose that peak load shifting.Storage peak regulation can divide according to way of energy storage
Are as follows: mechanical energy accumulator, thermal energy accumulation of energy, electrochemistry accumulation of energy and chemical energy accumulation of energy.
It by electrotransformation is mechanical energy storage that mechanical energy accumulator, which is 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 compressed air accumulation of energy and water-storage.Wherein, it compresses
Air energy-storage is the interior a kind of method that can be laid in that compressed air is converted electrical energy by large air compressor.Work as electricity
When can be rich, air be pressed by underground gas storage room by compressor and carries out energy storage；When peak times of power consumption, compressed air pushes turbine
Unit generation.Since the method first converts electrical energy into the interior energy of compressed air, it is then re-converted into electric energy again, therefore will cause
Power consumption is big, efficient energy conversion is low and the adverse consequences such as less economical.Water-storage utilizes low power consumption period
Extra load driving water pump carries out water-storage, and the one of the water-driven hydraulic turbine power generation of reservoir is utilized in peak times of power consumption
Kind method.This method is more serious by season, territory restriction, can not carry out large-scale promotion.
It by electrotransformation is thermal energy storage that thermal energy accumulation of energy, which is in low power consumption, and peak times of power consumption again convert thermal energy
For a kind of method of electric energy.Such as a kind of single tank regenerative apparatus, the heat storage medium being stored in tank, accumulation of heat are heated using valley period power
Medium heat-absorbing energy-accumulating releases energy in peak times of power consumption and is used by energy utilization device.The advantages of this device, is
Apparatus structure is simple, compact, easy to use, but the limited smaller scope of application for making the device of amount of stored heat.In contrast, cold-storage
Air-conditioning technical is using night dip electric refrigeration, to meet the needs of peak air conditioner load.It is similar to water-storage, the method
It is more serious by season, territory restriction.
Electrochemistry accumulation of energy stores valley period power including the use of battery, fuel cell, the release storage in the electricity consumption peak phase
Electric energy.The efficient energy conversion of this method is high, but due to operating cost height, memory capacity is small, makes its application range by one
It restricts with determining degree.
Chemical energy accumulation of energy, electric energy when being by the electricity consumption paddy phase are converted into a kind of side that the chemical energy of high-quality stores
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.Valley period power is applied to such as electrolytic aluminium high energy-consuming industry in addition, also having.Since there are seriously polluted to ask for aluminum electrolysis technology
Topic, and in today of aluminium excess capacity, it is not dominant that peak load regulation network is carried out by aluminum electrolysis technology.
Therefore, the new energy accumulating technique of one kind is developed to be of great significance.
Summary of the invention
In view of the problems of the existing technology, the present invention provide a kind of induction furnace iron bath coal gasification peak load regulation network system and
Method, the system and method are based on iron and bathe 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 are as follows:
A kind of peak load regulation network system of induction furnace iron bath coal gasification, including power supply unit and induction furnace, the power supply unit
Connect the induction furnace, the induction furnace includes furnace body and the inductor for heating to furnace body, the furnace body be equipped with feeding port,
Substance nozzle, gas vent, slag exit, the substance nozzle are arranged in the sidewall of the furnace body, and the substance nozzle and institute
The angle for stating sidewall of the furnace body is 20 ° ~ 60 °；The power supply unit is connect with power grid.
Further, the system also includes heat exchanger and deduster, the heat exchanger connects the induction furnace, described to remove
Dirt device connects the heat exchanger.
Further, the power supply unit includes the transformer connecting with power grid, the transformer be sequentially connected contactor,
Current transformer, capacitor and reactor and supplement capacitor, 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 regulating device and methanation device, the gas composition regulating device connects the deduster, for passing through
Vapor conversion reaction adjusts CO and H in synthesis gas2Molar ratio be 1:3, the methanation device is for will be from the synthesis
The gaseous mixture that gas component adjusting device comes out is completely converted into town gas by methanation reaction.
A kind of peak load regulation network method of induction furnace iron bath coal gasification, is using above-mentioned peak load regulation network system, including following step
It is rapid:
(1) peak load regulation network amount is determined according to the practical electricity consumption of paddy phase, power load is set, and determines the peak load regulation network
The quantity of system；If being directly entered step (2) using 1 set of peak load regulation network system；If using more set peak load regulation network systems,
Step (2) will be entered back into after more set peak load regulation network systems parallel connections；
(2) induction furnace is added in scrap iron/steel scrap, and electric energy is introduced into heating in induction furnace and melts scrap iron/steel scrap to temperature
Reach 1400 ~ 1550 DEG C and keeps constant；
(3) gasifying agent is preheated to 200 ~ 400 DEG C, sprays into the coal dust and calcium carbonate that preheating gasifying agent carries from substance nozzle
Mixed-powder carries out coal gasification reaction into induction furnace, obtains coal gas of high temperature；
(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 of flue gas or a variety of mixing.
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 molar ratio of the O in C and gasifying agent in calcium carbonate is 1:0.9 ~ 1:1.5, CaCO3With the molar ratio of the S in coal dust be 1:1 ~
2.5:1。
It is described that coal gas of high temperature is used to prepare town gas, detailed process in the above method are as follows: successively to pass through coal gas of high temperature
Enter gas composition regulating device after heat exchanger heat exchange, deduster dedusting, is reacted with vapor and generate H2, and control synthesis gas
Middle CO and H generated2Molar ratio be 1:3；Gaseous mixture is sent into anti-in 250 ~ 300 DEG C of generation methanations in methanation device
Town gas should be obtained.
Described that coal gas of high temperature successively exchanges heat through heat exchanger in the above method, 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 synthetic oil, methanol, ethylene glycol, oxo-alcohols, dimethyl ether and low-carbon alkene
Hydrocarbon etc. is using CO as the product of primary raw material.
Reaction equation of the present invention are as follows:
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~∆H7Indicate the reaction heat of reaction (1) ~ (7).
Coal gasification reaction is strong endothermic reaction, and using high temperature liquid iron as heat carrier, required heat is provided for coal gasification reaction
Amount.Molten iron in molten bath also has catalytic action to coal gasification reaction, and coal gasification reaction rate can be improved, and 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 material needed for the system
It is calculated with the product of generation, the method is as follows:
The coal dust of selection is colm and two kinds of fat coal, and the Industrial Analysis and elemental analysis of two kinds of coals are as shown in table 1:
The Industrial Analysis and elemental analysis result of 1 colm of table and fat coal
Design conditions: by the way of electromagnetic induction heating, electric input power Pa=50MW, electrothermal efficiency 74%；Gasification
Agent is CO2, C and CO in coal dust2Molar ratio takes 1:1, S and CaCO in coal dust3Molar ratio take 1:1；Molten iron temperature in induction furnace
It is 1450 DEG C.
When using fat coal, energy balance relations existing for system are as follows:
Electric heating input power P+ gasifying agent CO2, coal dust and CaCO3Physics heat input power Pm=gasification reaction Endothermic power
PIt inhales+ physical heat of ash dregs output power PAsh+CaCO3Decompose thermal output PStone+ CaS generates heat absorption power PCaS+ produce gas physical thermal
Output power PIt produces+ other radiation loss power PsIt loses, wherein P, Pm、PIt inhales、PAsh、PStone、PCaS、PIt produces、PIt losesUnit 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 timecoal, kg/s；
The physical thermal power P that coal dust is brought into1, kJ/s:P1=CpcoalmcoalTcoal=1.21mcoal× 20(DEG C)=24.2mcoal,
Wherein CpcoalIndicate the specific heat of coal dust, KJ/ (kg DEG C)；TcoalFor coal dust temperature, DEG C；
The CO consumed in unit time2Quality 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(DEG C)=
625.5103mcoal, wherein CpCO2Indicate the specific heat of carbon dioxide, KJ/ (kg DEG C)；TCO2For carbon dioxide temperature, DEG C；
The CaCO consumed in unit time3Quality mCaCO3, kg/s:mCaCO3= mcoal×0.49%×100/32；
CaCO3The physical thermal power P brought into3, kJ/s:P3=CpCaCO3mCaCO3TCaCO3=0.84mCaCO3× 20(DEG C)=
0.2573mcoal；
Then Pm=P1+P2+P3 =0.6490mcoal, wherein CpCaCO3Indicate the specific heat of calcium carbonate, KJ/ (kg DEG C)；TCaCO3
For calcium carbonate 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,
Wherein msIndicate the quality that CaS is generated in the unit time, kg/s；MsIndicate the molal weight of CaS, kg/mol；
Gasification reaction Endothermic power PIt inhales:
PIt inhales=mc/Mc×ΔH3=(0.8587mcoal/0.012-0.0049mcoal/0.0032)×161.81/1000=
11.5541mcoal, wherein mcIndicate the phosphorus content of consumption coal dust in the unit time, kg/s；McIndicate the molal weight of carbon, kg/
mol；
Reaction generates the quality m of lime-ash in unit timeslag, kg/s:mslag= mcoal×11.73%=0.1173mcoal；
Physical heat of ash dregs output power PAsh: PAsh=CpslagmslagTIron=0.92mslag× 1450(DEG C)=0.1565mcoal；
Wherein, CpslagFor the specific heat of slag, KJ/ (kg DEG C)；TIronFor 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；
Produce gas physics thermal output PIt produces: PIt produces=CpCOmCOTCO=1.16×mCO× 1450(DEG C)=6.7258mcoal；Wherein,
CpCOFor the specific heat of CO, KJ/ (kg DEG C)；TCOFor CO temperature, DEG C；
CaCO3Decompose thermal output PStone: PStone= mStone/MStone×ΔH1=0.49%mcoal/0.032×110.39=
0.0169mcoal；
Wherein, mStoneIndicate the quality of consumption calcium carbonate in the unit time, kg/s；MStoneIndicate the molal weight of calcium carbonate, kg/
mol；
Other heat loss power PsIt losesThe 5% of its maximal input is taken, then: PIt loses=50×5%=2.5；
M is calculatedcoal=1.9391kg/s=6.9808t/h；
Calculation method is identical as fat coal when using colm, it can thus be concluded that throwing coal when using colm
3.0228kg/s=10.8819t/h。
MaterialBalance Computation table is as shown in table 2:
Table 2 is with CO2For the MaterialBalance Computation table of gasifying agent
MaterialBalance Computation table when gasifying agent proper can be similarly made using vapor, as shown in table 3:
Table 3 is with H2O is the MaterialBalance Computation table of gasifying agent
The case where below to synthesis gas for when producing town gas, carries out Material calculation:
Design conditions: fat coal uses CO2The synthesis gas generated when as gasifying agent；
CO and H in synthesis gas2Gross mass be 27.9742t/h, mainly react in synthesis gas converting means (5)
By CO and H2Molar 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 molar ratio can obtain:
nCO/nH2=(mCO/28-X/18)/(X/18+nCoal-H2)=1/3
Wherein, nco indicates the amount that the substance of CO is generated in the unit time, mol/s；NH2 indicates to generate H2 in the unit time
Substance amount, mol/s；MCO indicates the quality that CO is generated in the unit time, kg/s；MH2 indicates to generate H2's in the unit time
Quality, kg/s, ncoal-H2Indicate pyrolysis of coal in the unit time, mol/s.It can thus be concluded that the vapor in synthesis gas converting means
Demand X=13.3870t/h, so by m in transformed synthesis gasCO=7.1499t/h, mH2=1.5321t/h.Methane
Production quantity is 4.0854t/h.
The demand of vapor and the final amount for generating methane in synthesis gas converting means can be similarly obtained in the case of remaining, such as
Shown in table 4:
The mass balance table that 4 methane of table generates
The invention has the benefit that the present invention is adaptable strong, not by season, territory restriction, peak modulation capacity is strong, rings
Answer fast, easy to control, the advantages that efficient energy conversion is high, environmental protection and economy；Not only the peak load regulation network being on the rise, but also energy are solved the problems, such as
High-quality coal gas/synthesis gas is generated, generated coal gas/synthesis gas is in addition to that can carry out chemical products conjunction directly as industrial chemicals
At outer, it may also be used for produce town gas, facilitate the status for alleviating China's gas supply shortage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of peak load regulation network system of the invention.
Fig. 2 is the structural schematic diagram of the horizontal induction furnace of peak load regulation network system of the invention.
Fig. 3 is the structural schematic diagram of the groove formula induction furnace of peak load regulation network system of the invention.
In Fig. 1 ~ 3,1. transformers；2. contactor；3. current transformer；4. capacitor；5. reactor；6. compensating electric capacity；
7. induction furnace；8. heat exchanger；9. deduster；10. gas composition regulating device；11. induction coil；12. feeding port；13. furnace
Body；14. gas vent；15. slag exit；16. substance nozzle；17. molten iron；18. channel；19. methanation device.
Specific embodiment
The present invention is described in further details with specific embodiment with reference to the accompanying drawing, described is to solution of the invention
It releases rather than limits.
Fig. 1 provides the structural schematic diagram of peak load regulation network system of the invention, and the peak load regulation network includes power supply unit, sense
Answer furnace 7, heat exchanger 8 and deduster 9, the power supply unit connects the induction furnace 7, the induction furnace include furnace body and for
The inductor of furnace body heating, the furnace body are equipped with feeding port 12, substance nozzle 16, gas vent 14, slag exit 15, the object
Expect that nozzle 16 is arranged in the sidewall of the furnace body, and the angle of the substance nozzle and the sidewall of the furnace body is 20 ° ~ 60 °；The confession
Electric installation is connect with power grid；The heat exchanger 8 connects the induction furnace 7, and the deduster 9 connects the heat exchanger 8.
The power supply unit includes the transformer 1 connecting with power grid, and it is mutual that the transformer 1 is sequentially connected contactor 2, electric current
Sensor 3, capacitor 4 and reactor 5 and supplement capacitor 6, the supplement capacitor 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.
It includes town gas processing unit that the system is also settable, the town gas processing unit include synthesis gas at
Divide regulating device and methanation device, the gas composition regulating device connects the deduster, becomes for passing through vapor
It changes reaction and adjusts CO and H in coal gas of high temperature2Molar ratio be 1:3, the methanation device is for will be from the gas composition
The gaseous mixture that regulating device comes out is completely converted into town gas by methanation reaction.
Embodiment 1
A kind of peak load regulation network method of induction furnace iron bath coal gasification, is to use peak load regulation network system as shown in Figure 1, described
System uses horizontal induction furnace as shown in Figure 2: for furnace body for U-shaped structure, crucible horizontal component internal diameter is 1.5m, long 2m；Crucible
Vertical component internal diameter 2m, high 3m；The peak load regulation network method the following steps are included:
(1) peak load regulation network amount is determined according to the practical electricity consumption of paddy phase, power load is set；
(2) induction furnace is added in scrap iron/steel scrap, and electric energy is introduced into heating in induction furnace and melts scrap iron/steel scrap to temperature
Reach 1450 DEG C and keeps constant, molten iron level high 2m, quality 76t；
(3) by gasifying agent CO2200 DEG C are preheated to, sprays into preheating CO from substance nozzle2The coal dust and calcium carbonate of carrying mix
Powder carries out coal gasification reaction into induction furnace, and wherein pulverized coal flow is 6.98t/h, CO2Flow is 21.98t/h, CaCO3Powder
For 0.29t/h, coal dust, calcium carbonate and CO2Contained in C and CO2In O molar ratio be 1:1, CaCO3With the S's in coal dust
Molar ratio is 1:1, obtains coal gas of high temperature, wherein CO and H2Yield be 22379m3/ h and 500m3/h；It is generated in coal gasifier
Slag is discharged by slag exit；
(4) coal gas of high temperature is subjected to waste heat recycling by heat exchanger, in heat exchanger, coal gas of high temperature exchanges heat with water,
Gas temperature can be down to 300 DEG C or so, and the coal gas after cooling enters purifying and dedusting in deduster.
There are two types of approach for clean gas after dedusting: one side clean gas can carry out chemical industry production directly as industrial chemicals
Product synthesis；Another aspect clean gas enters gas composition regulating device, reacts with vapor and generates H2, and control CO and institute
The H of generation2Molar ratio be 1:3；Gaseous mixture is sent into syngas reactor, methanation reaction (reaction equation (6), (7)) occurs
Town gas is obtained, methane production amount is 5719m3/h。
In the above method, the chemical products include synthetic oil, methanol, ethylene glycol, oxo-alcohols, dimethyl ether and low-carbon alkene
Hydrocarbon etc. is using CO as the product of primary raw material.
Embodiment 2
A kind of peak load regulation network method of induction furnace iron bath coal gasification, is to use peak load regulation network system as shown in Figure 1, described
System uses groove formula induction furnace as shown in Figure 3: furnace body is cylindrical crucible, crucible diameter 2.16m, high 4m；The electricity
Net peak regulating method the following steps are included:
(1) peak load regulation network amount is determined according to the practical electricity consumption of paddy phase, power load is set；
(2) induction furnace is added in scrap iron/steel scrap, and electric energy is introduced into heating in induction furnace and melts scrap iron/steel scrap to temperature
Reach 1400 DEG C and keeps constant, molten iron level high 3m, quality 86t；
(3) gasifying agent vapor is preheated to 400 DEG C, sprays into the coal dust and carbonic acid that preheating vapor carries from substance nozzle
Calcium mixed-powder carries out coal gasification reaction into induction furnace, and wherein pulverized coal flow is 7.86t/h, vapor flow 10.12t/
H, CaCO3Powder is that the molar ratio of 0.32t/h, C contained in coal dust and calcium carbonate and the O in vapor are 1:1, CaCO3With coal
The molar ratio of S in powder is 1:1, obtains coal gas of high temperature, wherein CO and H2Yield be 12598m3/ h and 13161m3/h；Coal gas
Change the slag generated in furnace to be discharged by slag exit；
(4) coal gas of high temperature is subjected to waste heat recycling by heat exchanger, in heat exchanger, coal gas of high temperature exchanges heat with water,
Gas temperature can be down to 300 DEG C or so, and the coal gas after cooling enters purifying and dedusting in deduster.
There are two types of approach for clean gas after dedusting: one side clean gas can carry out chemical industry production directly as industrial chemicals
Product synthesis；Another aspect clean gas enters gas composition regulating device, reacts with vapor and generates H2, and control CO and institute
The H of generation2Molar ratio be 1:3；Gaseous mixture is sent into syngas reactor, methanation reaction (reaction equation (6), (7)) occurs
Town gas is obtained, methane production amount is 6439m3/h。
In the above method, the chemical products include synthetic oil, methanol, ethylene glycol, oxo-alcohols, dimethyl ether and low-carbon alkene
Hydrocarbon etc. is using CO as the product of primary raw material.
Embodiment 3
A kind of peak load regulation network method of induction furnace iron bath coal gasification, is to use more set peak load regulation network systems as shown in Figure 1,
More set systems use horizontal induction furnace as shown in Figure 2: for furnace body for U-shaped structure, crucible horizontal component internal diameter is 1.5m, long
2m；Crucible vertical component internal diameter 2m, high 3m；The peak load regulation network method the following steps are included:
(1) peak load regulation network amount is determined according to the practical electricity consumption of paddy phase, power load is set, and will cover peak load regulation network system more
System is in parallel；
(2) induction furnace is added in scrap iron/steel scrap, and electric energy is introduced into heating in induction furnace in parallel by power supply unit and is melted
Change scrap iron/steel scrap to temperature to reach 1450 DEG C and keep constant, molten iron level high 2m, quality 76t；
(3) by gasifying agent CO2200 DEG C are preheated to, sprays into preheating CO from substance nozzle2The coal dust and calcium carbonate of carrying mix
Powder carries out coal gasification reaction into induction furnace, and wherein pulverized coal flow is 6.98t/h, CO2Flow is 21.98t/h, CaCO3Powder
For 0.29t/h, coal dust, calcium carbonate and CO2Contained in C and CO2In O molar ratio be 1:1, CaCO3With the S's in coal dust
Molar ratio is 1:1, obtains coal gas of high temperature, wherein CO and H2Yield be 22379m3/ h and 500m3/h；It is generated in coal gasifier
Slag is discharged by slag exit；
(4) coal gas of high temperature is subjected to waste heat recycling by heat exchanger, in heat exchanger, coal gas of high temperature exchanges heat with water,
Gas temperature can be down to 300 DEG C or so, and the coal gas after cooling enters purifying and dedusting in deduster.
There are two types of approach for clean gas after dedusting: one side clean gas can carry out chemical industry production directly as industrial chemicals
Product synthesis；Another aspect clean gas enters gas composition regulating device, reacts with vapor and generates H2, and control CO and institute
The H of generation2Molar ratio be 1:3；Gaseous mixture is sent into syngas reactor, methanation reaction (reaction equation (6), (7)) occurs
Town gas is obtained, methane production amount is 5719m3/h。
In the above method, the chemical products include synthetic oil, methanol, ethylene glycol, oxo-alcohols, dimethyl ether and low-carbon alkene
Hydrocarbon etc. is using CO as the product of primary raw material.
Claims (4)
1. a kind of peak load regulation network method of induction furnace iron bath coal gasification, which is characterized in that using the electricity of induction furnace iron bath coal gasification
Net peak regulation system is completed, in which:
The peak load regulation network system includes power supply unit and induction furnace, and the power supply unit connects the induction furnace, the sense
Answering furnace includes furnace body and the inductor for heating to furnace body, and the furnace body is equipped with feeding port, substance nozzle, gas vent, melts
Slag outlet, the substance nozzle setting is in the sidewall of the furnace body, and the angle of the substance nozzle and the sidewall of the furnace body is 20 °
~60 °；The power supply unit is connect with power grid；
The system also includes heat exchanger and deduster, the heat exchanger connects the induction furnace, described in the deduster connection
Heat exchanger；
The power supply unit includes the transformer connecting with power grid, and the transformer is sequentially connected contactor, current transformer, electricity
Container and reactor and supplement capacitor, induction furnace described in the supplement capacitance connection；
The inductor is induction coil, and the induction furnace uses horizontal induction furnace or groove formula induction furnace；
The system can also include town gas processing unit, and the town gas processing unit includes that gas composition is adjusted
Device and methanation device, the gas composition regulating device connect the deduster, for passing through vapor conversion reaction
Adjust CO and H in synthesis gas2Molar ratio be 1:3, the methanation device is for will be from the gas composition regulating device
Gaseous mixture out is completely converted into town gas by methanation reaction；
The method specifically includes the following steps:
(1) peak load regulation network amount is determined according to the practical electricity consumption of paddy phase, power load is set, and determines the peak load regulation network system
Quantity；If being directly entered step (2) using 1 set of peak load regulation network system；If, will be more using more set peak load regulation network systems
Step (2) are entered back into after set peak load regulation network system is in parallel；
(2) induction furnace is added in scrap iron/steel scrap, and electric energy is introduced into heating fusing scrap iron/steel scrap to temperature in induction furnace and is reached
It 1400~1550 DEG C and keeps constant；
(3) gasifying agent is preheated to 200~400 DEG C, sprays into the coal dust of preheating gasifying agent carrying from substance nozzle and calcium carbonate mixes
It closes powder and carries out coal gasification reaction into induction furnace, obtain coal gas of high temperature；
(4) coal gas of high temperature is used to prepare town gas or chemical products.
2. a kind of peak load regulation network method of induction furnace iron bath coal gasification according to claim 1, it is characterised in that the gas
Agent is CO2, vapor, richness CO2One of flue gas or a variety of mixing.
3. a kind of peak load regulation network method of induction furnace iron bath coal gasification according to claim 1, it is characterised in that described pre-
The coal dust and calcium carbonate mixed-powder that hot gas agent carries, the wherein O in the C and gasifying agent in gasifying agent, coal dust and calcium carbonate
Molar ratio be 1:0.9~1:1.5, CaCO3Molar ratio with the S in coal dust is 1:1~2.5:1.
4. a kind of peak load regulation network method of induction furnace iron bath coal gasification according to claim 1, it is characterised in that described to incite somebody to action
Coal gas of high temperature is used to prepare town gas, detailed process are as follows: coal gas of high temperature is successively laggard through heat exchanger heat exchange, deduster dedusting
Enter gas composition regulating device, is reacted with vapor and generate H2, and control CO and H generated in synthesis gas2Molar ratio be
1:3；Gaseous mixture is sent into methanation device and obtains town gas in 250~300 DEG C of generation methanation reactions.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2309343Y (en) * | 1997-06-30 | 1999-03-03 | 王起刚 | Medium-frequency induction furnace capable of remelting electroslag and smelting lined electroslag |
| JP2002081624A (en) * | 2000-09-05 | 2002-03-22 | Kawasaki Heavy Ind Ltd | Waste gasification melting furnace and operation method of the melting furnace |
| CN201176454Y (en) * | 2008-04-03 | 2009-01-07 | 东北大学 | Smelting furnace |
| CN103491663A (en) * | 2013-10-10 | 2014-01-01 | 铜陵金威铜业有限公司 | Cored induction furnace melting starting power source device |
| CN203432310U (en) * | 2013-07-11 | 2014-02-12 | 上海大学 | Induction heating metal smelting furnace |
| CN103836946A (en) * | 2012-11-21 | 2014-06-04 | 虞文娟 | Induction furnace for metal smelting |
-
2016
- 2016-12-26 CN CN201611216170.9A patent/CN106786619B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2309343Y (en) * | 1997-06-30 | 1999-03-03 | 王起刚 | Medium-frequency induction furnace capable of remelting electroslag and smelting lined electroslag |
| JP2002081624A (en) * | 2000-09-05 | 2002-03-22 | Kawasaki Heavy Ind Ltd | Waste gasification melting furnace and operation method of the melting furnace |
| CN201176454Y (en) * | 2008-04-03 | 2009-01-07 | 东北大学 | Smelting furnace |
| CN103836946A (en) * | 2012-11-21 | 2014-06-04 | 虞文娟 | Induction furnace for metal smelting |
| CN203432310U (en) * | 2013-07-11 | 2014-02-12 | 上海大学 | Induction heating metal smelting furnace |
| CN103491663A (en) * | 2013-10-10 | 2014-01-01 | 铜陵金威铜业有限公司 | Cored induction furnace melting starting power source device |
Non-Patent Citations (2)
| Title |
|---|
| 以高炉熔渣为热载体进行煤气化的实验研究;李朋;《中国优秀硕士论文全文数据库工程科技Ⅰ》;20130315;第B017-14页 |
| 熔融床煤气化技术研究现状;李朋 等;《冶金能源》;20100331;第29卷(第2期);第49-53页 |
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