CN110229697A - A kind of method and device of coal high-temperature gasification production synthesis gas - Google Patents
A kind of method and device of coal high-temperature gasification production synthesis gas Download PDFInfo
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- CN110229697A CN110229697A CN201910547974.4A CN201910547974A CN110229697A CN 110229697 A CN110229697 A CN 110229697A CN 201910547974 A CN201910547974 A CN 201910547974A CN 110229697 A CN110229697 A CN 110229697A
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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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/466—Entrained flow processes
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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
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- 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
- C10J2300/0903—Feed preparation
- C10J2300/0906—Physical processes, e.g. shredding, comminuting, chopping, sorting
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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
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1687—Integration of gasification processes with another plant or parts within the plant with steam generation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Industrial Gases (AREA)
Abstract
The invention discloses a kind of method and devices of coal high-temperature gasification production synthesis gas.Coal dust and gasifying agent are from top of gasification furnace burner penetrating gasification furnace, and coal is reacted with gasifying agent generates the synthesis gas containing carbon monoxide and hydrogen, and gas sprays into chilled water during flowing downward, and reaches liquid slag solid state at high temperature, and reduce the temperature of gas.Gas is discharged from gasification furnace lower part outlet, and cooling lime-ash is discharged into slag bucket from outlet at bottom.Gasification furnace is characterized in that gasification furnace is made of the gasification section on top, the flared section at middle part and lower part Quench section.The present invention generates vapor using high-temperature gas sensible heat evaporation chilled water, CO conversion reaction is carried out while reducing synthesis gas temperature, increase the hydrogen content in synthesis gas, and the synthesis gas after cooling down further utilizes waste heat boiler to recycle heat, the system entirety thermal efficiency can be improved, have the advantages that gasification efficiency is high, device structure is simple, wastewater flow rate is few, is particularly suitable for the production process of low activity coal and high ash melting point coal gasification.
Description
Technical field
The present invention relates to a kind of method and devices of coal high-temperature gasification production synthesis gas, belong to Coal Gasification Technology field.
Background technique
Coal gasification can be divided into fixed-bed gasification furnace, fluidized-bed gasification furnace and air flow bed in the way of gas-solid contact
Gasification furnace.Airflow bed gasification furnace has gasification temperature height, gasification energy for fixed-bed gasification furnace and fluidized-bed gasification furnace
The advantages that power is big, currently, the gasification process first choice airflow bed gasification furnace of many extensive Coal Chemical Engineering Projects.
Gasification temperature is generally higher than the flowing temperature of remaining lime-ash after coal gasification when airflow bed gasification furnace gasifies, to protect
The proper flow of liquid lime-ash in airflow bed gasification furnace is demonstrate,proved, and then ensures the normal table operation of airflow bed gasification furnace.In industry
During enterprise is applied, in order to realize the purpose, it is necessary to which the coal for selecting low ash smelting point there is not industrial enterprise location
For the enterprise for having low ash smelting point coal, it is necessary to carry out other places buying at a distance.And for the coal of high ash melting point,
Successfully to gasify in airflow bed gasification furnace, it is necessary to be mixed into the auxiliary agents such as lime stone, in coal for gasification to reduce ash
The ash fusion point of slag, this increases the cost of enterprise operation to a certain extent.
For the coal of low reaction activity, gasification reactivity is relatively low, when being gasified in airflow bed gasification furnace,
Then there is situations such as conversion ratio is relatively low.Industrial practice also indicates that current gasification technology can not achieve low activity coal
High-efficiency gasification and device long-period stable operation.
Therefore, although dry coal powder airflow bed gasification technology has realized the mature application of industrialization, for low activity
Coal, for the coal with high ash melting point, current existing airflow bed gasification furnace technology can't reach fine
Gasification result.
Summary of the invention
The present invention is intended to provide a kind of method and device of coal high-temperature gasification production synthesis gas, has efficiency of carbon con version height, gas
The advantage that hydrogen content is high, device structure is simple in change thermal efficiency height, synthesis gas, and compared with current dry-powder air-current bed gasification skill
Hydrogen content is improved in art product gas, the coal gasification production process being particularly suitable for for the purpose of hydrogen manufacturing, it can also be used to stone
The carbonaceous material gasifications preparing synthetic gas such as oil coke, biomass, organic waste.
The present invention is directed to the coal of high-ash-fusion coal and low activity, proposes a kind of gasification of coal and equipment, feature
It is that the upper section in gasification furnace realizes the high-temperature gasification of coal dust, lower section, which sprays into chilled water, reduces gas temperature, while cooling slag
It, can be in favor of the vapor that subsequent dedusting and gas Exposure degree, another aspect chilled water are generated by thermal evaporation to solid-state
Carbon monoxide in gas carries out high-temperature water gas conversion reaction, improves the hydrogen content in gas.
The present invention provides a kind of methods of coal high-temperature gasification production synthesis gas, comprising the following steps:
(1) coal drying, be crushed, be sieved into fine breeze；
(2) coal dust sprays into gasification furnace with gasifying agent from the burner for being located at top of gasification furnace, through air transporting arrangement in temperature
1400-1450 DEG C, vapor pressure 3.0MPaUnder, coal is reacted with gasifying agent generates the synthesis gas containing carbon monoxide and hydrogen；
(3) gas and lime-ash that gasification generates flow downward, the Quench section of the flared section through gasification furnace to gasification furnace lower part, Quench
Water sprays into gasification furnace from the atomizer being located on the flared section conical surface, reduces the temperature of gas；Molten state lime-ash also reduces simultaneously
Temperature is simultaneously solidified, and Quench water evaporation generates vapor, and the part CO and vapor in gas carry out conversion reaction generation
H2, the hydrogen content in gas is improved, gas is discharged from the gas outlet tube of gasification furnace side lower part, and lime-ash is arranged from gasification furnace bottom
Cinder notch is discharged into slag bucket；
(4) gas of gasification furnace discharge enters cyclone separator, removes the most crude particle dust carried in gas；
(5) gas for removing crude particle dust enters waste heat boiler, and while reducing gas temperature recycling heat, production is steamed
Gas；
(6) gas after step (5) heat exchange enters filter removing fine dust, so that dust contains in the gas after dedusting
Amount meets the requirement of subsequent workshop section；Dedusting gas send subsequent purification workshop section to handle, and dust is sent to thin powder recovery processing system.
The partial size of fine breeze is less than 100 μm in above-mentioned steps (1).
The gasifying agent includes one of oxygen, vapor, carbon dioxide and nitrogen or several.
The chilled water of the penetratings gasification furnace of step (3) as described above can be industrial wastewater, tap water, industry softened water or
Boiler saturated water.
The present invention provides a kind of devices of coal high-temperature gasification production synthesis gas, including sequentially connected gasification furnace, whirlwind
Separator, waste heat boiler and filter；The gasification furnace includes top gasification section, flared section and lower part Quench section, top gasification
The side towards the fire of section furnace wall 14 is equipped with lining or water wall structure, and outer layer is cylindrical housings；There is coal dust at the top of the gasification section of top
With gasifying agent import, top gasification pars infrasegmentalis connect with lower part Quench section through flared section, is evenly arranged on the conical surface of flared section
Several Quench water atomizing nozzles, Quench pars infrasegmentalis side are equipped with gas outlet tube, and Quench section bottom is equipped with slag-drip opening.
Further, the diameter ratio of top gasification section and lower part Quench section is 1:1.2-2, highly compares 1:0.2-1.
Further, the cone-apex angle for connecting the flared section of gasification section and Quench section is 60-150 °.
Further, it is uniformly distributed along the circumference on the conical surface of the flared section Quench water atomizing nozzle 4-40, jet expansion
Angle with horizontal plane is 0-90 °.
Further, the slag-drip opening of Quench section bottom is equipped with slagging coutrol valve, connects slag bucket below slag-drip opening.
The present invention have the advantages that following technical characterstic and: (1) coal dust is reacted with gasifying agent in the gasification section on gasification furnace top
Synthesis gas is generated, efficiency of carbon con version is up to 99%；(2) gasification furnace lower part, which sprays into chilled water, reduces gas temperature, and cooling melting ash
Slag simplifies deslagging, dedusting and Waste Heat Recovery System；(3) vapor that chilled water generates can carry out conversion reaction with CO and generate H2,
The hydrogen content in product gas can be improved, system changeover load after reduction reduces investment and operating cost；(4) chilled water can adopt
With industrial wastewater, trade effluent is handled using pyrogenetic decomposition；(5) waste heat boiler gas recovery sensible heat improves system thermal effect
Rate；(6) fine dust in product gas is removed using high-temperature filter, relatively conventional washing dedusting saves water, and reduces dirty
Water discharge.
Beneficial effects of the present invention:
The high-efficiency gasification of low activity coal or high-ash-fusion coal can be achieved in the present invention, has gasification efficiency height, thermal efficiency height, pollution
Object discharges few advantage, can be used for producing the process of synthesis gas using low activity coal or high-ash-fusion coal as gasified raw material, can also
For the carbonaceous material gasifications preparing synthetic gas such as petroleum coke, biomass, organic waste.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the device of coal high-temperature gasification production synthesis gas of the present invention；
Fig. 2 is the structural schematic diagram of gasification furnace in the present invention；
Fig. 3 is gasification furnace Section A-A structural schematic diagram in the present invention.
In figure, 1 is the burner at top of gasification furnace center, and 2 be gasification furnace, and 3 be Quench water atomizing nozzle, and 4 be gas vent,
5 be slagging coutrol valve, and 6 be slag bucket, and 7 be cyclone separator, and 8 be waste heat boiler, and 9 be filter, and 10 be gasification section, and 11 be flaring
Section, 12 be Quench section, and 13 be coal dust and gasifying agent import, and 14 be the water-cooling wall or lining of gasification furnace, and 15 be the cylinder of gasification furnace
Body, 16 be slag-drip opening.A is coal dust, and B is gasifying agent, and C is chilled water, and D is softened water, and E is high steam, and F is crude synthesis gas, G
For dust, H is lime-ash.
Specific embodiment
The present invention is further illustrated below by embodiment, but is not limited to following embodiment.
Device used in the present invention is as shown in Fig. 1 ~ 3, a kind of device of coal high-temperature gasification production synthesis gas, including successively
Gasification furnace, cyclone separator, waste heat boiler and the filter of connection；
The gasification furnace 2 include top gasification section 10, flared section 11 and lower part Quench section 12,10 furnace wall 14 of top gasification section to
Fiery face is equipped with lining or water wall structure, and outer layer is cylindrical housings 15；There are coal dust and gasifying agent at the top of top gasification section 10
Import 13,10 lower part of top gasification section connect with lower part Quench section 12 through flared section 11, are uniformly arranged on the conical surface of flared section 11
There are several Quench water atomizing nozzles 3, Quench pars infrasegmentalis side is equipped with gas outlet tube 4, and Quench section bottom is equipped with slag-drip opening 16.
Further, the diameter ratio of top gasification section 10 and lower part Quench section 12 is 1:1.2-2, highly compares 1:0.2-1.
Further, the cone-apex angle for connecting the flared section 11 of gasification section and Quench section is 60-150 °.
Further, it is uniformly distributed along the circumference on the conical surface of the flared section Quench water atomizing nozzle 4-40, jet expansion
Angle with horizontal plane is 0-90 °.
Further, the slag-drip opening 16 of Quench section bottom is equipped with slagging coutrol valve 5, connects slag bucket 6 below slag-drip opening.
Embodiment 1
Gasify furnace body always high 12500mm.Wherein, gasification section height 6500mm, internal diameter 500mm, outer diameter 1550mm；Quench section is high
Spend 4500mm, internal diameter 900mm, outer diameter 1850mm.Gasification furnace flared section cone-apex angle α is 120o, the conical surface circumference along flared section is equal
Cloth Quench water atomizing nozzle 4, relative level is arranged two-by-two.
Coal dust property, treating capacity and gasifying agent dosage are as shown in the table.According to gasification process of the present invention, partial size is small
Gasification furnace 2, gasification section are sprayed into from the burner 1 at top of gasification furnace center in 100 μm of coal dusts and gasifying agent (oxygen and water vapour)
1400-1450 DEG C of 10 operation temperature, vapor pressure 3.0MPa, the gas and molten ash cocurrent for reacting generation flow downward；
30-50 DEG C of industrial wastewater sprays into high-temperature gas from 4 atomizers uniformly distributed on 11 conical surface of flared section are located at, regulating pondage
850-900 DEG C of 12 gas temperature of controlled chilling section, chilled water boil-off gas turns to vapor, the part CO and vapor in gas into
Row conversion reaction generates H2, while molten ash cools and solidifies；Gas from be located at 12 lower side of Quench section gas outlet tube 4
Gasification furnace is discharged, solid lime-ash, which is fallen into slag bucket 6, is discharged gasification furnace to ash processing system；The gas being discharged from gasification furnace 2
Into cyclone separator 7, most of dust that gas carries is by separation removal, efficiency of dust collection 85-90%；Remove most of dust
Gas enter waste heat boiler, using gas sensible heat generate 4.0MPa steam for gasification system utilize, while gas temperature reduce
To 230-250 DEG C；Gas after cooling enters filter and further separates dust, dust content < 10mg/ in gas after dedusting
Nm3, gas send subsequent purification workshop section to handle, and the dust that cyclone separator and filter are collected send thin powder recovery processing system.Gas
The main operating parameters and gasification index for changing furnace see the table below.
Industrial Analysis, elemental analysis and the ash fusion point analysis data of coal see the table below:
Gasification furnace prevailing operating conditions are as follows:
The key technical indexes that gasifies is as shown in the table:
Embodiment 2
Gasify furnace body always high 12500mm.Wherein, gasification section height 6000mm, internal diameter 500mm, outer diameter 1550mm；Quench section is high
Spend 5000mm, internal diameter 1000mm, outer diameter 1850mm.Gasification furnace flared section cone-apex angle α is 90o, the conical surface circumference along flared section is equal
Cloth converts 8, shower water atomizer, 45 under horizontal directionoIt is positioned opposite two-by-two.Gasification furnace remaining with embodiment 1.
Industrial Analysis, elemental analysis and the ash fusion point property of coal dust are as shown in example 1.According to gasification side of the present invention
Method, gasifying agent are oxygen and water vapour, control 1350-1400 DEG C of operation temperature, vapor pressure 2.0MPa of gasification section 10, Quench
The industrial wastewater that water is 20-30 DEG C, 750-800 DEG C of 12 operation temperature of Quench section, cyclone separator efficiency of dust collection 88-92%, waste heat
Boiler generates 3.0MPa steam using gas sensible heat and utilizes for gasification system, while gas temperature is reduced to 210-230 DEG C, cooling
Gas afterwards enters filter and further separates dust, dust content < 15mg/Nm in gas after dedusting3, send subsequent purification workshop section
Processing.The treating capacity and gasifying agent dosage of coal dust are as shown in the table, remaining is the same as embodiment 1.The main operating parameters of gasification furnace and
Gasification index see the table below.
Gasification furnace prevailing operating conditions are as follows:
Gasification experiment result is as shown in the table:
Embodiment 3
Gasify furnace body always high 12500mm.Wherein, gasification section height 7500mm, internal diameter 500mm, outer diameter 1550mm；Quench section is high
Spend 3200mm, internal diameter 900mm, outer diameter 1850mm.Gasification furnace flared section cone-apex angle α is 60o, along the conical surface circumference uniform distribution of flared section
Transformation 8, shower water atomizer, 45 under horizontal directionoIt is positioned opposite two-by-two.Gasification furnace remaining with embodiment 1.
Industrial Analysis, elemental analysis and the ash fusion point property of coal dust are as shown in example 1.According to gasification side of the present invention
Method, gasifying agent are oxygen and water vapour, control 1400-1450 DEG C of operation temperature, vapor pressure 0.1MPa of gasification section 10, Quench
Water is industrial tap water, 650-700 DEG C of 12 operation temperature of Quench section, cyclone separator efficiency of dust collection 90-92%, waste heat boiler
It generates 1.0MPa steam using gas sensible heat to utilize for gasification system, while gas temperature is reduced to 150-180 DEG C, after cooling
Gas enters filter and further separates dust, dust content < 10mg/Nm in gas after dedusting3, send at subsequent purification workshop section
Reason.The treating capacity and gasifying agent dosage of coal dust are as shown in the table, remaining is the same as embodiment 1.The main operating parameters of gasification furnace are gentle
Changing index see the table below.
Gasification furnace prevailing operating conditions are as follows:
Gasification experiment result is as shown in the table:
Embodiment 4
Gasify furnace body always high 12500mm.Wherein, gasification section height 7500mm, internal diameter 500mm, outer diameter 1550mm；Quench section is high
Spend 3200mm, internal diameter 900mm, outer diameter 1850mm.Gasification furnace flared section cone-apex angle α is 120o, the conical surface circumference along flared section is equal
Cloth converts 8, shower water atomizer, 45 under horizontal directionoIt is positioned opposite two-by-two.Gasification furnace remaining with embodiment 1.
Industrial Analysis, elemental analysis and the ash fusion point property of coal dust are as shown in example 1.According to gasification side of the present invention
Method, gasifying agent are oxygen and carbon dioxide, 1400-1450 DEG C of operation temperature, vapor pressure 4.0MPa of control gasification section 10, are swashed
Cold water is industrial tap water, 650-700 DEG C of 12 operation temperature of Quench section, cyclone separator efficiency of dust collection 87-89%, waste heat boiler
Furnace generates 4.5MPa high pressure steam using gas sensible heat and utilizes for gasification system, while gas temperature is reduced to 230-250 DEG C, drop
Gas after temperature enters filter and further separates dust, dust content < 10mg/Nm in gas after dedusting3, send subsequent purification work
Section processing.The treating capacity and gasifying agent dosage of coal dust are as shown in the table, remaining is the same as embodiment 1.The main operating parameters of gasification furnace
It see the table below with gasification index.
Gasification furnace prevailing operating conditions are as follows:
Gasification experiment result is as shown in the table:
。
Claims (9)
1. a kind of method of coal high-temperature gasification production synthesis gas, it is characterised in that the following steps are included:
(1) coal drying, the fine breeze for being crushed, being sieved into；
(2) coal dust sprays into gasification furnace with gasifying agent from the burner for being located at top of gasification furnace, through air transporting arrangement in temperature
1350-1450 DEG C, under 2.0 ~ 4.0MPa of vapor pressure, coal is reacted with gasifying agent generates the synthesis containing carbon monoxide and hydrogen
Gas；
(3) gas and lime-ash that gasification generates flow downward, the Quench section of the flared section through gasification furnace to gasification furnace lower part, Quench
Water sprays into gasification furnace from the atomizer being located on the flared section conical surface, reduces the temperature of gas；Molten state lime-ash also reduces simultaneously
Temperature is simultaneously solidified, and Quench water evaporation generates vapor, and the part CO and vapor in gas carry out conversion reaction generation
H2, the hydrogen content in gas is improved, gas is discharged from the gas outlet tube of gasification furnace side lower part, and lime-ash is arranged from gasification furnace bottom
Cinder notch is discharged into slag bucket；
(4) gas of gasification furnace discharge enters cyclone separator, removes the most crude particle dust carried in gas；Dedusting effect
Rate 85-92%；
(5) gas for removing crude particle dust enters waste heat boiler, and while reducing gas temperature recycling heat, production is steamed
Gas；Gas temperature is reduced to 150-250 DEG C simultaneously；
(6) gas after step (5) heat exchange enters filter removing fine dust, so that dust contains in the gas after dedusting
Amount meets the requirement of subsequent workshop section, dust content < 15mg/Nm in gas after dedusting3；Dedusting gas is sent at subsequent purification workshop section
Reason, dust are sent to thin powder recovery processing system.
2. the method for coal high-temperature gasification production synthesis gas according to claim 1, it is characterised in that: duff in step (1)
The partial size of powder is less than 100 μm.
3. the method for coal high-temperature gasification production synthesis gas according to claim 1, it is characterised in that: the gasifying agent packet
One of oxygenous, vapor, carbon dioxide and nitrogen are several.
4. the method for coal high-temperature gasification production synthesis gas according to claim 1, it is characterised in that: the step (3)
The chilled water for spraying into gasification furnace is industrial wastewater, tap water, industrial one of softened water or boiler saturated water, regulating pondage control
The gas temperature of Quench section processed is 650-900 DEG C.
5. a kind of device of coal high-temperature gasification production synthesis gas, special for implementing the described in any item methods of claim 1 ~ 4
Sign is: including sequentially connected gasification furnace, cyclone separator, waste heat boiler and filter；The gasification furnace includes top gas
Change section, flared section and lower part Quench section, the side towards the fire of top gasification section furnace wall is equipped with lining or water wall structure, and outer layer is circle
Cylindrical shell；There are coal dust and gasifying agent import at the top of the gasification section of top, pars infrasegmentalis is gasified through flared section and lower part Quench section in top
It connecting, several Quench water atomizing nozzles is evenly arranged on the conical surface of flared section, Quench pars infrasegmentalis side is equipped with gas outlet tube,
Quench section bottom is equipped with slag-drip opening.
6. the device of coal high-temperature gasification production synthesis gas according to claim 5, it is characterised in that: top gasification section is under
The diameter ratio of portion's Quench section is 1:1.2-2, highly compares 1:0.2-1.
7. the device of coal high-temperature gasification production synthesis gas according to claim 5, it is characterised in that: connect gasification section and swash
The cone-apex angle of cold section of flared section is 60-150 °.
8. the device of coal high-temperature gasification production synthesis gas according to claim 5, it is characterised in that: the flared section
The Quench that is uniformly distributed along the circumference on the conical surface water atomizing nozzle 4-40, the angle of jet expansion and horizontal plane is 0-90 °.
9. the device of coal high-temperature gasification production synthesis gas according to claim 5, it is characterised in that: the row of Quench section bottom
Cinder notch is equipped with slagging coutrol valve, connects slag bucket below slag-drip opening.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113234487A (en) * | 2021-04-26 | 2021-08-10 | 中国神华煤制油化工有限公司 | Gasification furnace, slag discharge device, washing tower, gasification system and gasification method |
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| US20080041572A1 (en) * | 2006-08-15 | 2008-02-21 | The Babcock & Wilcox Company | Compact radial platen arrangement for radiant syngas cooler |
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| WO2014061527A1 (en) * | 2012-10-16 | 2014-04-24 | 三菱重工業株式会社 | Gasification apparatus |
| CN105154140A (en) * | 2015-10-10 | 2015-12-16 | 中国科学院山西煤炭化学研究所 | Multi-stage entrained-flow coal gasification method and equipment capable of realizing coupling high temperature shift |
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| CN113234487A (en) * | 2021-04-26 | 2021-08-10 | 中国神华煤制油化工有限公司 | Gasification furnace, slag discharge device, washing tower, gasification system and gasification method |
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Application publication date: 20190913 |