CN2816046Y - Coal-ash gasifying furnace - Google Patents
Coal-ash gasifying furnace Download PDFInfo
- Publication number
- CN2816046Y CN2816046Y CN 200520103669 CN200520103669U CN2816046Y CN 2816046 Y CN2816046 Y CN 2816046Y CN 200520103669 CN200520103669 CN 200520103669 CN 200520103669 U CN200520103669 U CN 200520103669U CN 2816046 Y CN2816046 Y CN 2816046Y
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- CN
- China
- Prior art keywords
- shell
- inner casing
- water
- dividing plate
- gas
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Abstract
Vapourizing furnace with coal dust generation coal gas is made of the coal dust gasification section on top and heating gas water cold shocking section two portions of bottom.Be included in the dividing plate that is connected as a single entity with its underpart inwall in the shell, and be connected as a single entity with the gas cylinder of downward coaxial arrangement; In the upper chamber that dividing plate is separated, be provided with identical with this chamber outer wall shape, and tool water double wall at regular intervals or water wall inner casing; The cold shock jacket casing is contained in outside the gas cylinder, and fixes with outer casing inner wall; Shell and dividing plate and inner casing constitute the soft water cavity, and to being provided with a pair of nozzle interface for a short time, shell is provided with gas exit and cooling water inlet below cover top portion.Its top of coal dust gasification furnace structure has the water wall feature of Shell stove, the bottom is selected the cold shock barrel structure of Texaco stove for use, integrate two kinds of constitutional featuress, and formation worm spy's production method, making vapor pressure is the coal gas of 0.1～6.5Mpa, compare with the SCGP technology of Shell stove and the Texaco technology of Texaco stove, construction cost hangs down 15% approximately.
Description
Technical field
The utility model relates to a kind of vapourizing furnace that produces coal gas, belongs to the equipment that is contained the inflammable gas of CO by the solid carbon-containing fuel manufacturing.
Background technology
At present, produce the vapourizing furnace of coal gas on the world market with fine coal, mainly contain two kinds of Shell (shell) dry coal dust gasification furnace and Texaco (De Shi Gu) coal slurry gasifiers, they all have excellent characteristic, add complete auxiliary ligand complete equipment, two kinds of gas production equipment that show unique characteristics and the complete production technique of a cover, i.e. the Texaco technology of the SCGP technology of Shell stove and Texaco stove have been formed.Wherein the Shell stove is to adopt multi-nozzle, the dry coal powder is transported in the stove from the body of heater middle part with nitrogen gas stream, oxygen and water vapor are also in nozzle is delivered to stove, and the Texaco stove is to adopt single nozzle, coal, water etc. are worn into coal coal water slurry in ball mill, through after fully stirring becomes uniform coal water slurry, send in the stove from the body of heater top through nozzle with force (forcing) pump, oxygen is also in nozzle is sent into stove again.The Shell stove is the bilayer structure of water wall, and heating gas exports to waste heat boiler from top of gasification furnace after cooled coal gas cold shock cooling, and byproduct steam reclaims heat.And Texaco stove top is firebrick structure, and the bottom is the cold shock barrel structure, and heating gas swashs cooling and increases vapour content in the coal gas through water-cooled, reduces coal gas aftertreatment steam consumption.Because the furnace binding difference, the post-processed equipment of the coal gas that the Shell stove produces is more, and investment is big, as synthetic gas Quench, Quench gas circulator, waste heat boiler and dedusting washing plant etc.; And the Texaco stove is a firebrick structure, thereby the maintenance capacity of body of heater itself is big, and the oxygen consumption is bigger in the Texaco technology, thereby the gas cost height, CO and H in the coal gas
2Content low, thermo-efficiency is low.These two kinds of vapourizing furnaces adopt more at home and abroad, and price is very expensive.
The utility model content
The utility model provides a kind of vapourizing furnace in order to overcome the defective of prior art, has both had the characteristic of Shell stove, has overcome the deficiency of Texaco stove again, becomes the pulverized coal gasification furnace that a kind of cost is low, investment is little and thermo-efficiency is high.
The utility model pulverized coal gasification furnace comprises that top, bottom are ellipsoidal head and bottom centre is provided with the cylinder-like shell that cinder exports; Wherein in shell, be provided with the conical baffle that is connected as a single entity with its underpart inwall, and awl point downwards, and be connected as a single entity with the gas cylinder of the downward coaxial arrangement of vertical direction; In the upper chamber that dividing plate is separated, be provided with identical with this chamber outer wall shape, and tool inner casing at regular intervals, the lower end of inner casing and gas cylinder outer wall link together; Hollow cold shock jacket casing is contained in outside the gas cylinder, and fixedlys connected with outer casing inner wall by web member; The soft water inlet passes shell and dividing plate is communicated with the soft water cavity that inner casing is constituted, on the shell at this cavity top, be provided with steam outlet, on the diameter direction below the cover top portion, passing shell to little a pair of nozzle interface fixedlys connected with inner casing, being provided with gas exit above the cold shock tube and on the shell between the dividing plate, below gas exit, be provided with the cooling water inlet.
The utility model pulverized coal gasification furnace, wherein inner casing substitutes with the water wall inner casing; The water wall inner casing is by forming along the evenly distributed some vertical water service pipes that are interconnected of circumferential direction with company's dividing plate that it is connected as a single entity; The soft water inlet passes shell and dividing plate is communicated with the lower end of water service pipe in the water wall inner casing, and steam outlet passes cover top portion and is communicated with the water service pipe upper end; The soft water cavity is substituted by the nitrogen cavity, is provided with nitrogen outlet on the shell at this cavity top, thereunder is provided with nitrogen inlet.
The utility model pulverized coal gasification furnace, wherein nozzle interface is fixedly connected along the tangential direction of inner casing or water wall inner casing shell wall.
The utility model pulverized coal gasification furnace, gas exit front end wherein, the arc liquid barrier upwards opens, and tilts to be fixed on the described outer casing inner wall.
The utility model pulverized coal gasification furnace, wherein top, the bottom of shell is provided with liquidometer.
Its top of the utility model coal dust gasification furnace structure has the water wall feature of Shell stove, the bottom is selected the cold shock barrel structure of Texaco stove for use, thereby integrate the constitutional features of two kinds of vapourizing furnaces, also two kinds of technological process of productions are combined together simultaneously, form unique production method, be applicable to that making vapor pressure is the gashouse of 0.1～6.5Mpa, compare with the SCGP technology of Shell stove and the Texaco technology of Texaco stove, construction cost hangs down 15% approximately, wherein, the construction cost of the air separation plant that gasification needs is suitable with the SCGP technology of Shell stove, but be about the Texaco stove Texaco technology construction cost 85%, and the construction cost of gasification and cooling and dedusting equipment is about the former 75%, is about the latter's 90%.Because both construction costs are all quite expensive high, thereby the utlity model has considerable economic and social benefit.
Description of drawings
Fig. 1 is the utility model pulverized coal gasification furnace structural principle synoptic diagram;
Fig. 2 is the A-A diagrammatic cross-section of Fig. 1, i.e. cold shocking section structural principle synoptic diagram;
Fig. 3 is another example structure principle schematic of the utility model pulverized coal gasification furnace;
Fig. 4 is the B-B diagrammatic cross-section of Fig. 3.
Embodiment
By Fig. 1, Fig. 2 as seen, the utility model pulverized coal gasification furnace comprises the coal dust gasification section on top and heating gas water cold shocking section two portions of bottom.Wherein gasification section comprises that the top is the conical baffle 3 that ellipsoidal head, middle part are cylinder-like shell 2 and bottom for being connected as a single entity with shell 2 inwalls, and the awl point downwards, and is connected as a single entity with the gas cylinder 4 of the downward coaxial arrangement of vertical direction; In the upper chamber that dividing plate 3 is separated, be provided with identical with this cavity geometry, and tool inner casing 5 at regular intervals, the lower end of inner casing 5 and gas cylinder 4 outer walls link together; Soft water inlet 8 passes shell 2 and dividing plate 3 is communicated with the soft water cavity that inner casing 5 is constituted, and is provided with steam outlet 9 on the shell 2 at this cavity top, and on the diameter direction below shell 2 tops, two nozzle interfaces 10 pass shell 2 fixedlys connected with inner casing 5.Cold shocking section comprises the cold shock tube 6 that is sleeved on outside the gas cylinder 4, and fixedlys connected with shell 2 inwalls by web member 7; Be provided with gas exit 11 on the shell above the cold shock tube 6 and between the dividing plate 32, at gas exit 11 front ends, arc liquid barrier 16 upwards opens and tilts to be fixed on shell 2 inwalls; Below gas exit 11, be provided with cooling water inlet 12; Be provided with cinder outlet 1 at the oval-shaped base center of shell 2, above the bottom of shell 2, be provided with liquidometer 17.
The working process of this pulverized coal gasification furnace: in gasification section, dry coal powder, oxygen and steam etc. are sent at a high speed in the inner casing 5 by nozzle, at high temperature burn also and steam reaction, generate H
2, CO and CO
2Deng gas, temperature of combustion can reach 1400～1600 ℃, available gas H
2, CO can reach 90～92%.At high temperature, cinder becomes the melt-flow state, and high-temperature gas and melt-flow cinder enter cold shocking section through gas cylinder 4, swashs cooling by water-cooled in cold shock tube 6, coal gas after the cooling flows out from the gas exit 11 of cold shock tube 6 tops, carries out postorder to the coal gas dust removal washing tower and handles.The arc liquid barrier 16 of gas exit 11 front ends is to prevent that big water gaging from flowing out with coal gas.The melt-flow cinder swashs through water-cooled, becomes solid cinder and water and discharges from cinder outlet 1 together.
By Fig. 3, Fig. 4 be the utlity model has water wall inner casing 5 ' another embodiment, the top gasification section structure of this embodiment is different with the former, and bottom condensation segment structure and the former are identical.Inner casing 5 be water wall inner casing 5 ', it is by forming along the evenly distributed some vertical water service pipes 13 that are interconnected of circumferential direction with company's dividing plate that it is connected as a single entity; Soft water inlet 8 ' pass shell 2 and dividing plate 3 is communicated with the lower end of water wall inner casing 5 ' middle water service pipe 13, steam outlet 9 ' pass shell 2 tops to be communicated with water service pipe 13 upper ends; The soft water cavity is substituted by the nitrogen cavity, is provided with nitrogen outlet 14 on the shell 2 at this cavity top, thereunder is provided with nitrogen inlet 15.During work, the dry coal powder is imported in the stove oxygen and the steam in addition of nozzle input simultaneously, the available gas H behind the high-temp combustion by nozzle by nitrogen gas stream
2, CO and a melt-flow cinder part be attached on the water wall; carry out heat exchange with the water in the water wall; water becomes steam; and the melt-flow cinder cools off on water wall and becomes the solid slag film; and be fixed on the water wall, water wall is played a protective role, make the body of heater long service life; single stove throughput is big, the reliability height.Shell 2 and dividing plate 3 and water wall inner casing 5 ' between the nitrogen cavity that constitutes mainly shield, prevent the leakage of water wall, reduce the temperature of shell 2 simultaneously.Obviously, the working process of bottom condensation segment and aforementioned just the same.
Claims (5)
1, a kind of pulverized coal gasification furnace comprises that top, bottom are ellipsoidal head and bottom centre is provided with the cylinder-like shell (2) that cinder exports (1); It is characterized in that in described shell (2), be provided with the conical baffle (3) that is connected as a single entity with its underpart inwall, and awl point downwards, and be connected as a single entity with the gas cylinder (4) of the downward coaxial arrangement of vertical direction; In the upper chamber that described dividing plate (3) is separated, be provided with identical with this chamber outer wall shape, and tool inner casing at regular intervals (5), the lower end of described inner casing (5) and described gas cylinder (4) outer wall link together; Hollow cold shock tube (6) is sleeved on outside the described gas cylinder (4), and fixedlys connected with described shell (2) inwall by web member (7); Soft water inlet (8) passes described shell (2) and described dividing plate (3) is communicated with the soft water cavity that described inner casing (5) is constituted, on the described shell (2) at this cavity top, be provided with steam outlet (9), on the diameter direction of below, described shell (2) top, passing described shell (2) to little a pair of nozzle interface (10) fixedlys connected with inner casing (5), on the shell (2) that is positioned between described cold shock tube (6) top and the described dividing plate (3), be provided with gas exit (11), be provided with cooling water inlet (12) in the below of described gas exit (11).
2, pulverized coal gasification furnace according to claim 1 is characterized in that described inner casing (5) substitutes with water wall inner casing (5 '); Described water wall inner casing (5 ') is by forming along the evenly distributed some vertical water service pipes (13) that are interconnected of circumferential direction with company's dividing plate that it is connected as a single entity; Soft water inlet (8 ') passes described shell (2) and described dividing plate (3) is communicated with the lower end of water service pipe (13) described in the described water wall inner casing (5 '), and steam outlet (9 ') passes described shell (2) top and is communicated with described water service pipe (13) upper end; The soft water cavity is substituted by the nitrogen cavity, is provided with nitrogen outlet (14) on the described shell (2) at this cavity top, thereunder is provided with nitrogen inlet (15).
3, pulverized coal gasification furnace according to claim 1 and 2 is characterized in that described nozzle interface (10) is fixedly connected along the tangential direction of described inner casing (5) or water wall inner casing (5 ') shell wall.
4, pulverized coal gasification furnace according to claim 3, at described gas exit (11) front end, arc liquid barrier (16) upwards opens and tilts to be fixed on described shell (2) inwall.
5, pulverized coal gasification furnace according to claim 4 is characterized in that being provided with liquidometer (17) in the top, bottom of described shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103669 CN2816046Y (en) | 2005-08-11 | 2005-08-11 | Coal-ash gasifying furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103669 CN2816046Y (en) | 2005-08-11 | 2005-08-11 | Coal-ash gasifying furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816046Y true CN2816046Y (en) | 2006-09-13 |
Family
ID=36995848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520103669 Expired - Fee Related CN2816046Y (en) | 2005-08-11 | 2005-08-11 | Coal-ash gasifying furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816046Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328434B (en) * | 2008-07-17 | 2011-06-22 | 中国科学技术大学 | Dry coal powder airflow bed gasification furnace |
| CN102352267A (en) * | 2011-09-05 | 2012-02-15 | 张一波 | Carbon decomposition water type fuel generator and fuel production process |
| CN103764973A (en) * | 2011-10-19 | 2014-04-30 | 三菱重工业株式会社 | Method for controlling gas-turbine power plant, gas-turbine power plant, method for controlling oven for gasification of carbon-containing fuel, and oven for gasification of carbon-containing fuel |
| CN103820160A (en) * | 2014-03-03 | 2014-05-28 | 华东理工大学 | Combustion chamber, coal water slurry gasification furnace with water wall and multiple opposite nozzles, and application of coal water slurry gasification furnace |
-
2005
- 2005-08-11 CN CN 200520103669 patent/CN2816046Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328434B (en) * | 2008-07-17 | 2011-06-22 | 中国科学技术大学 | Dry coal powder airflow bed gasification furnace |
| CN102352267A (en) * | 2011-09-05 | 2012-02-15 | 张一波 | Carbon decomposition water type fuel generator and fuel production process |
| CN103764973A (en) * | 2011-10-19 | 2014-04-30 | 三菱重工业株式会社 | Method for controlling gas-turbine power plant, gas-turbine power plant, method for controlling oven for gasification of carbon-containing fuel, and oven for gasification of carbon-containing fuel |
| CN103764973B (en) * | 2011-10-19 | 2016-04-13 | 三菱日立电力系统株式会社 | The controlling method of the controlling method of gas turbine generating equipment, gas turbine generating equipment, carbonaceous fuel gasifying stove and carbonaceous fuel gasifying stove |
| CN103820160A (en) * | 2014-03-03 | 2014-05-28 | 华东理工大学 | Combustion chamber, coal water slurry gasification furnace with water wall and multiple opposite nozzles, and application of coal water slurry gasification furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060913 Termination date: 20120811 |