CN109181775A - A kind of opposed more burner gasification furnaces of the downlink with Exposure degree - Google Patents
A kind of opposed more burner gasification furnaces of the downlink with Exposure degree Download PDFInfo
- Publication number
- CN109181775A CN109181775A CN201811354960.2A CN201811354960A CN109181775A CN 109181775 A CN109181775 A CN 109181775A CN 201811354960 A CN201811354960 A CN 201811354960A CN 109181775 A CN109181775 A CN 109181775A
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- Prior art keywords
- water
- burner
- cooling wall
- shell
- outlet
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- 238000002309 gasification Methods 0.000 title claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 44
- 239000003245 coal Substances 0.000 claims abstract description 43
- 230000005855 radiation Effects 0.000 claims abstract description 38
- 239000002699 waste material Substances 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000002893 slag Substances 0.000 claims abstract description 33
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 22
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims description 9
- 241001365789 Oenanthe crocata Species 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 23
- 238000005516 engineering process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 239000012429 reaction media Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- C10J3/48—Apparatus; Plants
-
- 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
- C10J3/86—Other features combined with waste-heat boilers
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a kind of opposed more burner gasification furnaces of downlink with Exposure degree, water-cooling wall, radiation waste pot and slag bath are sequentially distributed from top to bottom, each fine coal burner is circumferentially, the outlet of each fine coal burner both passes through housing side and is inserted in water-cooling wall, the igniting integrated burner that goes into operation is inserted in water-cooling wall at the top of the shell, the molten ash outlet of water-cooling wall bottom is connected with the liquid slag entrance at the top of radiation waste pot, the slag notch of radiation waste pot bottom is located at the surface of slag bath, synthesis gas discharge line passes through shell and is connected with the syngas outlet of radiation waste pot side, water supply pipeline passes through shell and is connected with the water inlet of the water inlet of water-cooling wall and radiation waste pot, water return pipeline passes through shell and is connected with the steam (vapor) outlet of the steam (vapor) outlet of water-cooling wall and radiation waste pot, the diameter of the housing of the gasification furnace is smaller, liquid lime-ash Arresting efficiency it is high, be readily transported, and structure is simple, it is at low cost.
Description
Technical field
The invention belongs to field of energy and chemical technologys, are related to a kind of opposed more burner gasification furnaces of the downlink with Exposure degree.
Background technique
Dry coal powder pressure gasifying technology has many advantages, such as that coal adaptability is good, cold gas efficiency is high, environmental-protecting performance is excellent, is
The main direction of Coal Gasification Technology development.
Dry coal powder pressure gasifying technique includes two kinds of techniques of Exposure degree and Quench.For chilling technology, using dry powder into
Material, gasifying medium and pure oxygen or it is oxygen-enriched react, generate 1400~1600 DEG C of high-temperature synthesis gas, high-temperature synthesis gas carries melting
Lime-ash enters Quench tank and chilled water comes into full contact with and is cooled to about 210 DEG C, and the lime-ash of melting is quenched into tiny glassy state
Grain.Compared with chilling technology, Exposure degree technique realizes the recycling of synthesis gas sensible heat, by-product middle pressure steam, energy utilization rate
10~15 percentage points are improved, system wastewater flow rate is low.
Using the dry coal powder pressure gasifying technology of Exposure degree technique in the world at present mainly includes SHELL coal gasification skill
Art, Huaneng Group two stage type gas technology, Prenflo Coal Gasification Technology.In structure, the above two " п " shape structures, i.e. reaction zone exists
Gasification furnace lower section reacts the synthesis gas uplink of generation, enters useless pot side by top changeover portion and recycles synthesis gas sensible heat.Gasifying
It needs excessively to connect by large forgings between furnace and useless pot.Using this class formation, gasify furnace shell, changeover portion, field assembly
Implementation and detection significantly increase equipment manufacturing costs, device framework design on, need to be respectively set one across arrangement gasification furnace
With useless pot, increase frame construction cost, the polymorphic structure of changeover portion also increases the transport difficulty of equipment.Prenflo coal gasification
Technology is similar with SHELL in gasification reactor chamber, and useless pot is arranged on the outside of water-cooling wall, high-temperature synthesis gas uplink rear steering downlink, leads to
Useless pot recycling sensible heat is crossed, which has increased considerably apparatus casing diameter, and gasification stove outer covering is usually third class(grade) pressure vessel, directly
Its manufacturing cost can also dramatically increase after diameter increase.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, it is opposed to provide a kind of downlink with Exposure degree
More burner gasification furnaces, the diameter of the housing of the gasification furnace is smaller, and the arresting efficiency of liquid lime-ash is high, is readily transported, and structure letter
It is single, it is at low cost.
In order to achieve the above objectives, the opposed more burner gasification furnaces of the downlink of the present invention with Exposure degree include shell,
It goes into operation integrated burner, water supply pipeline, water return pipeline, synthesis gas discharge line, dried coal powder burner if lighting a fire and is set to shell
Intracorporal water-cooling wall, radiation waste pot and slag bath；
Water-cooling wall, radiation waste pot and slag bath are sequentially distributed from top to bottom, each fine coal burner circumferentially, each fine coal burner
Outlet both pass through housing side and be inserted in water-cooling wall, the igniting integrated burner that goes into operation is inserted in water cooling at the top of shell
In wall, the molten ash outlet of water-cooling wall bottom is connected with the liquid slag entrance at the top of radiation waste pot, radiation waste pot bottom
Slag notch be located at the surface of slag bath, synthesis gas discharge line passes through shell and is connected with the syngas outlet of radiation waste pot side
Logical, water supply pipeline passes through shell and is connected with the water inlet of the water inlet of water-cooling wall and radiation waste pot, and water return pipeline passes through shell
It is connected with the steam (vapor) outlet of the steam (vapor) outlet of water-cooling wall and radiation waste pot.
Water-cooling wall is tubulation structure or coil arrangement, and the inner wall of water-cooling wall is laid with refractory material layer.
The quantity of fine coal burner is 2-6, and each fine coal burner is uniformly distributed circumferentially.
When the number of fine coal burner is two, then the outlet face of two fine coal burners is arranged, when the number of fine coal burner
When mesh is more than or equal to 3, then the center line of each fine coal burner outlet deviates 0 ° -9 ° of water-cooling wall diameter.
It is provided with drop water conservancy diversion eaves under liquid slag in the molten ash outlet of water-cooling wall bottom, drips water conservancy diversion eaves under liquid slag
Lower end is pierced by molten ash outlet and extend into 5~20cm in radiation waste pot.
Radiation waste pot is made of cylinder heat-transfer surface and several heat exchange screen, wherein each heat exchange screen is located in cylinder heat-transfer surface.
The number of heat exchange screen is 4-20 piece.
Slag bath is positioned at the pond of housing bottom, and the bottom of shell is provided with slag-drip opening.
The invention has the following advantages:
The opposed more burner gasification furnaces of downlink with Exposure degree of the present invention are when specific operation, in the side of shell
If upper arrangement dried coal powder burner, the outlet of each fine coal burner are inserted into water-cooling wall across shell, to improve reaction medium in gas
Change the uniformity being distributed in furnace and strength of turbulence, to greatly improve reaction medium conversion ratio, improves the trapping effect of liquid lime-ash
Rate.In addition, the present invention is at work, synthesis gas carries molten ash downlink and enters in radiation waste pot, and radiation waste pot mainly leads to
Overshoot exchanges heat, and heat exchange efficiency is high, while avoiding connecting using large forgings transition, so that the straight of shell be effectively reduced
Diameter reduces equipment investment cost, and is readily transported and installs, while realizing the recycling of synthesis gas sensible heat, improves using energy source
Efficiency.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the sectional view of water-cooling wall 3 in the present invention；
Fig. 3 is the sectional view in Fig. 1 at A-A；
Fig. 4 is the main view of heat exchange screen 13 in the present invention.
Wherein, 1 be igniting go into operation integrated burner, 2 be shell, 3 be water-cooling wall, 4 be fine coal burner, 5 be molten ash
Outlet, 6 be under liquid slag drip water conservancy diversion eaves, 7 be radiation waste pot, 8 be slag bath, 9 be slag-drip opening, 10 be synthesis gas discharge line,
11 it is water supply pipeline, 12 be water return pipeline, 13 be heat exchange screen, 14 is cylinder heat-transfer surface.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, the opposed more burner gasification furnaces of the downlink with Exposure degree of the present invention include shell 2, light a fire and open
If work integration burner 1, water supply pipeline 11, water return pipeline 12, synthesis gas discharge line 10, dried coal powder burner 4 and being set to
Water-cooling wall 3, radiation waste pot 7 and slag bath 8 in shell 2；Water-cooling wall 3, radiation waste pot 7 and slag bath 8 are sequentially distributed from top to bottom, respectively
Circumferentially, the outlet of each fine coal burner 4 both passes through 2 side of shell and is inserted in water-cooling wall 3 fine coal burner 4, and igniting goes into operation
The top that integrated burner 1 passes through shell 2 is inserted in water-cooling wall 3, the molten ash outlet 5 of 3 bottom of water-cooling wall and radiation
The liquid slag entrance at useless 7 top of pot is connected, and the slag notch of 7 bottom of radiation waste pot is located at the surface of slag bath 8, synthesis gas discharge
Pipeline 10 passes through shell 2 and is connected with the syngas outlet of 7 side of radiation waste pot, and water supply pipeline 11 passes through shell 2 and water-cooling wall 3
Water inlet and the water inlet of radiation waste pot 7 be connected, water return pipeline 12 passes through the steam (vapor) outlet and spoke of shell 2 and water-cooling wall 3
The steam (vapor) outlet for penetrating useless pot 7 is connected.
Specific work process of the invention are as follows:
It goes into operation to igniting and is passed through combustion-supporting gas and fuel in integrated burner 1, pass through the igniting integrated burner 1 that goes into operation and realize
Gasify furnace igniting and increasing temperature and pressure, and fine coal burner 4 is put into after reaching certain pressure in shell 2, and exits igniting and go into operation one
Change burner 1, the coal dust being sent into through fine coal burner 4 is reacted with gasifying agent, generates high-temperature synthesis gas and liquid lime-ash, wherein
High-temperature synthesis gas carries liquid lime-ash through molten ash outlet 5 downwardly into radiation waste pot 7, while passing through water supply pipeline
11 boiler feedwater is added into water-cooling wall 3 and radiation waste pot 7, and high-temperature synthesis gas is given with the boiler in radiation waste pot 7 and water-cooling wall 3
Water exchanges heat, so that the boiler feedwater in radiation waste pot 7 and water-cooling wall 3 is converted to middle pressure steam, and through 12 row of water return pipeline
Out, the synthesis gas temperature after heat exchange is down to 300~700 DEG C, is finally discharged from synthesis gas discharge line 10, and lime-ash then falls into slag bath
In 8, and gasification furnace finally is discharged from slag-drip opening 9, wherein slag bath 8 is the pond for being set to 2 bottom of shell.In addition, in practical behaviour
When making, according to the quantity that can need to be arranged water supply pipeline 11 and water return pipeline 12.
Gasification furnace of the present invention uses dry powder forced feed, and gasified raw material can be fine coal, coke, semicoke or petroleum
The raw materials such as coke, pumped (conveying) medium are the inert gases such as CO2 or N2, and gasified raw material is sent into gasification furnace, vapor pressure by fine coal burner 4
For 0.6~4.5Mpa, gasification temperature is 1300~1700 DEG C.
Igniting go into operation integrated burner 1 fuel using diesel oil or combustion gas, combustion-supporting gas is oxygen, oxygen-enriched or air, can
Realize that -0.02~1.0Mpa stablizes burning.
Water-cooling wall 3 uses tubulation structure or coil arrangement, and inner wall lays refractory material layer to trap liquid slag, and then is formed
Slag blanket avoids washing away for air-flow and lime-ash.
With reference to Fig. 2, each fine coal burner 4 is uniformly distributed circumferentially, the quantity of fine coal burner 4 2~6, when fine coal burner 4
When quantity is 2, the outlet face arrangement of two fine coal burners 4, when burner quantity is greater than 3, the center line of the outlet of fine coal burner 4
Deviate 0~9 ° of 3 diameter of water-cooling wall.
It is provided with drop water conservancy diversion eaves 6 under liquid slag in the molten ash outlet 5 of 3 bottom of water-cooling wall, drips water conservancy diversion under liquid slag
Eaves 6 stretches out the outer 5~20cm of molten ash outlet 5, to radial overflow when avoiding molten ash viscosity excessive.
With reference to Fig. 3 and Fig. 4, radiation waste pot 7 is made of heat exchange screen 13 and cylinder heat-transfer surface 14, heat exchange screen 13 and cylinder heat exchange
Face 14 is tubulation structure, and the screen 13 that exchanges heat is located in cylinder heat-transfer surface 14, and the quantity of heat exchange screen 13 is calculated according to heat-exchanging process
It determines, usually 4~20, the virtual diameter of a circle D2 that each 13 inside of heat exchange screen forms should be less than molten ash outlet 5
Diameter D1.
Claims (8)
1. a kind of opposed more burner gasification furnaces of the downlink with Exposure degree, which is characterized in that go into operation one including shell (2), igniting
Body burner (1), water supply pipeline (11), water return pipeline (12), synthesis gas discharge line (10) if, dried coal powder burner (4) and
Water-cooling wall (3), radiation waste pot (7) and the slag bath (8) being set in shell (2)；
Water-cooling wall (3), radiation waste pot (7) and slag bath (8) are sequentially distributed from top to bottom, each fine coal burner (4) circumferentially, respectively
The outlet of fine coal burner (4) both passes through shell (2) side and is inserted in water-cooling wall (3), and the igniting integrated burner (1) that goes into operation passes through
It is inserted at the top of shell (2) in water-cooling wall (3), the molten ash outlet (5) of water-cooling wall (3) bottom and radiation waste pot (7)
The liquid slag entrance at top is connected, and the slag notch of radiation waste pot (7) bottom is located at the surface of slag bath (8), synthesis gas discharge
Pipeline (10) passes through shell (2) and is connected with the syngas outlet of radiation waste pot (7) side, and water supply pipeline (11) passes through shell
(2) it is connected with the water inlet of the water inlet of water-cooling wall (3) and radiation waste pot (7), water return pipeline (12) passes through shell (2) and water
The steam (vapor) outlet of cold wall (3) and the steam (vapor) outlet of radiation waste pot (7) are connected.
2. the opposed more burner gasification furnaces of the downlink with Exposure degree according to claim 1, which is characterized in that water-cooling wall
It (3) is tubulation structure or coil arrangement, the inner wall of water-cooling wall (3) is laid with refractory material layer.
3. the opposed more burner gasification furnaces of the downlink with Exposure degree according to claim 1, which is characterized in that fine coal burner
(4) quantity is 2-6, and each fine coal burner (4) is uniformly distributed circumferentially.
4. the opposed more burner gasification furnaces of the downlink with Exposure degree according to claim 3, which is characterized in that when fine coal is burnt
When the number of mouth (4) is two, then the outlet face arrangement of two fine coal burners (4), when the number of fine coal burner (4) is greater than etc.
When 3, then 0 ° -9 ° of diameter of center line deviation water-cooling wall (3) of each fine coal burner (4) outlet.
5. the opposed more burner gasification furnaces of the downlink with Exposure degree according to claim 1, which is characterized in that water-cooling wall
(3) it is provided with drop water conservancy diversion eaves (6) under liquid slag in the molten ash outlet (5) of bottom, is dripped under water conservancy diversion eaves (6) under liquid slag
End is pierced by molten ash outlet (5) and extend into 5~20cm in radiation waste pot (7).
6. the opposed more burner gasification furnaces of the downlink with Exposure degree according to claim 1, which is characterized in that radiation waste pot
(7) it is made of cylinder heat-transfer surface (14) and several heat exchange screen (13), wherein each heat exchange screen (13) is located at cylinder heat-transfer surface (14)
It is interior.
7. the opposed more burner gasification furnaces of the downlink with Exposure degree according to claim 6, which is characterized in that heat exchange screen
(13) number is 4-20 piece.
8. the opposed more burner gasification furnaces of the downlink with Exposure degree according to claim 1, which is characterized in that slag bath (8)
To be provided with slag-drip opening (9) positioned at the bottom in the pond of shell (2) bottom, shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354960.2A CN109181775A (en) | 2018-11-14 | 2018-11-14 | A kind of opposed more burner gasification furnaces of the downlink with Exposure degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354960.2A CN109181775A (en) | 2018-11-14 | 2018-11-14 | A kind of opposed more burner gasification furnaces of the downlink with Exposure degree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109181775A true CN109181775A (en) | 2019-01-11 |
Family
ID=64939268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811354960.2A Pending CN109181775A (en) | 2018-11-14 | 2018-11-14 | A kind of opposed more burner gasification furnaces of the downlink with Exposure degree |
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| Country | Link |
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| CN (1) | CN109181775A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226248A (en) * | 2020-09-09 | 2021-01-15 | 中石化宁波工程有限公司 | Pulverized coal gasification device and process method for co-burning organic wastewater by using same |
| WO2021082942A1 (en) * | 2019-10-28 | 2021-05-06 | 中国华能集团清洁能源技术研究院有限公司 | Gasification device for treating waste solids and wastewater |
| CN116694368A (en) * | 2023-04-19 | 2023-09-05 | 清华大学山西清洁能源研究院 | Online monitoring device and online monitoring method for coal gasifier |
| CN116731751A (en) * | 2023-06-30 | 2023-09-12 | 清华大学山西清洁能源研究院 | Online monitoring device and online monitoring method for coal gasifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116694368A (en) * | 2023-04-19 | 2023-09-05 | 清华大学山西清洁能源研究院 | Online monitoring device and online monitoring method for coal gasifier |
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| CN116731751A (en) * | 2023-06-30 | 2023-09-12 | 清华大学山西清洁能源研究院 | Online monitoring device and online monitoring method for coal gasifier |
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