CN1278925C - Refractory lining for gasification furnace of producing synthesis gas by air-flow bed using hydrocarbon as raw material - Google Patents
Refractory lining for gasification furnace of producing synthesis gas by air-flow bed using hydrocarbon as raw material Download PDFInfo
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- CN1278925C CN1278925C CN 200410067212 CN200410067212A CN1278925C CN 1278925 C CN1278925 C CN 1278925C CN 200410067212 CN200410067212 CN 200410067212 CN 200410067212 A CN200410067212 A CN 200410067212A CN 1278925 C CN1278925 C CN 1278925C
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- cone section
- house steward
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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]
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Abstract
The present invention provides a novel refractory lining of a gasifying furnace which is a gasifying core device of an airflow bed with hydrocarbon as raw material. The refractory lining provided by the present invention has the advantages of simple structure, long service life and low investment. The effective utilization ratio of high-pressure space is enhanced, the productivity of a high-pressure casing is increased, and medium-pressure steam is produced as a by-product. The present invention is particularly suitable for large-scale devices, such as a furnace with coal processing capability of 4000 to 6000 tons per day.
Description
Technical field
The present invention relates to a kind of hydro carbons and produce the refractory liner of the vapourizing furnace of synthetic gas for the unstripped gas fluidized bed.
Background technology
Hydro carbons is a kind of organism based on carbon, protium.Can show as the gas, liquid, solid three-state.Hydrocarbon gas has Sweet natural gas, coal-seam gas, oil field gas, refinery gas, coke(oven)gas etc.; Liquid hydrocarbon has crude oil, heavy oil, residual oil etc.Solid hydrocarbons has coal, refinery coke, biomass, ight soil, cloaca mud etc.
Vapourizing furnace is an equipment of finishing the hydro carbons partial oxidation reaction therein, its operating pressure is 0.1～10MPa, temperature is 1300～1700 ℃, the synthetic gas that this technology makes has important value, is the raw material of liquefaction (directly or indirectly) made fuel oil, synthesizing methanol, ammonia, also is the chief component of IGCC generating, production alkene technology.
Representational in the world at present large-scale gasification installation is Tampa (2000 tons of coal/skies, the Texaco technology), Dutch Buggenum power plant (2000 tons of coal/skies, the Shell technology) and Puertollano (2600 tons of coal/skies, Krupp Koppers-Uhde technology).It is raw material that Texaco adopts coal water slurry, and the vapourizing furnace refractory liner is a Cr-Al-Zr refractory brick, and it is raw material that another kind of device adopts the dry coal powder, and the vapourizing furnace refractory liner is water wall (Membrane Wall).
Practice shows that the life-span of refractory brick is～8000 hours, and cost an arm and a leg (refractory brick per ton is 5～5.5 ten thousand yuans, and the stove refractory brick price that housing diameter is 2800mm is 2,200,000 yuan).The structure of Shell water wall is too complicated, and cost is too high, is more than two times of lining of fire brick, so industry member, wishes to have a kind of simple in structure, long service life, vapourizing furnace refractory liner that cost is low especially when device maximizes.
Summary of the invention
The technical issues that need to address of the present invention are to disclose a kind of refractory liner of producing the synthetic gas vapourizing furnace with the hydro carbons for the unstripped gas fluidized bed, to overcome the existing deficiency that exists.
Realize technical scheme of the present invention:
Said refractory liner comprises the hollow butt upper cone section that has chuck that is connected in series mutually successively, have the hollow direct tube section of chuck and have the butt hollow lower cone section of chuck;
Be respectively equipped with in the chuck of said upper cone section, direct tube section and lower cone section and be fixed in the tube bank that is connected in parallel on the chuck, the two ends of upper cone section, direct tube section and lower cone section are respectively equipped with house steward and following house steward (or claiming header), house steward's surface has a ring groove, and house steward and following house steward's ring groove is gone up at the two ends of tube bank respectively with insertion;
The following house steward of upper cone section, direct tube section and lower cone section is connected with waterworks, and the last house steward of upper cone section, direct tube section and lower cone section is connected with drum;
Be protection refractory liner and housing, be provided with the slag nail net that comprises that slag nail and net sheet constitute, filling refractory materials in the net sheet space in its refractory liner side towards the fire side and housing inboard.
Refractory liner of the present invention can be used for the vapourizing furnace of producing synthetic gas with the hydro carbons for the material gasification bed of various types, is preferred for multi-nozzle opposed type coal water slurry or dry coal dust gasification furnace that the contriver proposes in patent ZL 98110616.1.
The principle of work of refractory liner of the present invention is such:
Feedwater enters tube bank by house steward, and and tube bank between the cavity that forms, feedwater divides gasification in the side towards the fire lining inside, steam carries fractional saturation water and enters house steward from tube bank and cavity between restraining from ring groove, again the admission bag.
Refractory liner of the present invention, simple in structure, cost of manufacture is lower, is provided with the tube bank that is used to conduct heat in chuck, make medium (feedwater and steam) directed, evenly mobile, the whole heat transfer property of realizing refractory liner is even, can not produce the local superheating phenomenon, thereby prolong the work-ing life of refractory liner greatly, reduced investment, improve the effective rate of utilization of high-pressure space, increased the throughput of High Pressure Shell, and the by-product middle pressure steam.The present invention is specially adapted to the device that maximizes, and for example single stove day is handled 4000～6000 tons of coals.
Description of drawings
Fig. 1 is the refractory liner structural representation.
Fig. 2 is the structural representation of direct tube section.
Fig. 3 is the house steward's structural representation with ring groove.
Fig. 4 is slag nail web frame synoptic diagram.
Embodiment
Referring to Fig. 1 and Fig. 2, said refractory liner comprises the hollow butt upper cone section 1 that has chuck 4 that is connected in series mutually successively, have the hollow direct tube section 2 of chuck 4 and have the hollow butt lower cone section 3 of chuck 4;
Be respectively equipped with in the chuck 4 of said upper cone section 1, direct tube section 2 and lower cone section 3 and be fixed in the tube bank 5 that is connected in parallel on the chuck 4, the two ends of upper cone section 1, direct tube section 2 and lower cone section 3 are respectively equipped with house steward 6 and following house steward 7, last house steward 6 and following house steward's 7 surface has ring groove 8, and house steward 6 and following house steward's 7 ring groove 8 is gone up at the two ends of tube bank 5 respectively with insertion;
The following house steward 7 of upper cone section 1, direct tube section 2 and lower cone section 3 is connected with waterworks, and the last house steward 6 of upper cone section 1, direct tube section 2 and lower cone section 3 and drum 9 are connected mutually;
Upper cone section 1, direct tube section 2 and lower cone section 3 are affixed by elastic element 10 and vapourizing furnace shell 11 respectively, to absorb the thermal expansion amount of refractory liner, elastic element 10 preferred springs;
Be the protection refractory liner, be provided with the slag nail net 15 that comprises that slag nail 12 and net sheet 13 constitute, filling refractory materials 14 in the net sheet space in its side towards the fire side.
It is 8～10mm that slag is followed closely 12 diameters, and length is 20～30mm, and material is high nickel and stainless steel, and slag nail 12 is in the heart apart from being 20～40mm, and net sheet 13 is nickelic stainless steel substrates, and thick is 0.5～1.5mm.The refractory materials composition is SiC=60～75%, Al
2O
3=10～18%, other oxide compound such as P
2O
5+ SiO
2+ Fe
2O
3=8～30%, also can be the mixture of chrome ore etc., or hopcalite such as chromium, aluminium, zirconium.
Embodiment 1
One is raw material with the coal water slurry, and air-flow bed coal-gasification is produced the device of synthetic gas, and vapourizing furnace adopts four nozzle opposed type vapourizing furnaces (ZL 98110616.1), and single stove day is handled 2000 tons of coals, and the side towards the fire lining adopts technology provided by the invention.Vapourizing furnace housing internal diameter is 4000mm, and the side towards the fire lining adopts syllogic, i.e. epicone, following awl and direct tube section.
Direct tube section chuck internal diameter is 3452mm, high 10m.Chuck adopts the Incoloy825 material, and sheet metal thickness is 10mm, and the tube bank between the chuck is a common stainless steel, is of a size of φ 38 * 4, and tube pitch is 1.8d, be provided with altogether 160 uniform, house steward is the Incoloy825 endless tube of 250 * 10mm up and down.
Upper and lower awl also adopts straight pipe type, and the tube bank diameter is φ b 38 * 4mm, and totally 160, boring house steward up and down is 250 * 10mm, is φ 2000 and form the diameter that encircles, and tube bank is 160, and boring butt place tube pitch up and down is 1.1d.
Housing and chuck inboard are provided with slag nail net, and the slag nail dimension is φ 10mm, high 25mm, vertical direction, the slag nail is in the heart apart from being 20mm, material is Incoloy825, guipure is the Incoloy825 steel disc of high 25mm, thick 1.0mm, filling refractory mortar between the guipure, and house steward is connected with recycle pump, drum respectively.
The last house steward of epicone, down the last house steward of awl and direct tube section house steward up and down all by spring suspended in the vapourizing furnace inboard, the other end of spring is fixed in vapourizing furnace shell inboard.
An above-mentioned vapourizing furnace refractory liner is matched with day and handles 2000 tons of coal gasifiers, and 13.5 tons/hour of by-product middle pressure steams (4.5MPa, 257 ℃) are surplus work-ing life 20 year.Its high-pressure space production intensity is higher by 26% than Texaco type stove, and is higher by 34% than Shell type stove.
Claims (5)
1. one kind is that with the hydro carbons unstripped gas fluidized bed produces the refractory liner of synthetic gas vapourizing furnace, it is characterized in that, comprise the hollow butt upper cone section (1) that has chuck (4) that is connected in series mutually successively, have the hollow direct tube section (2) of chuck (4) and have the hollow butt lower cone section (3) of chuck (4);
Be respectively equipped with in the chuck (4) of said upper cone section (1), direct tube section (2) and lower cone section (3) and be fixed in the tube bank (5) that is connected in parallel on the chuck (4), the two ends of upper cone section (1), direct tube section (2) and lower cone section (3) are respectively equipped with house steward (6) and following house steward (7), last house steward (6) and following house steward's (7) surface has ring groove (8), and house steward (6) and following house steward's (7) ring groove (8) is inserted at the two ends of tube bank (5) respectively.
2. refractory liner according to claim 1, it is characterized in that, the following house steward (7) of upper cone section (1), direct tube section (2) and lower cone section (3) is connected with waterworks, and the last house steward (6) of upper cone section (1), direct tube section (2) and lower cone section (3) is connected with drum (9).
3. refractory liner according to claim 1 is characterized in that, upper cone section (1), direct tube section (2) and lower cone section (3) are affixed by elastic element (10) and vapourizing furnace shell (11) respectively.
4. refractory liner according to claim 1 is characterized in that, is provided with the slag nail net (15) that comprises that slag nail (12) and net sheet (13) constitute, filling refractory materials (14) in the net sheet space in refractory liner side towards the fire side and stove outer covering (11) inboard.
5. refractory liner according to claim 4 is characterized in that, slag nail (12) diameter is 8～10mm, and length is 20～30mm, and material is high nickel and stainless steel, and slag nail core spacing is 20～40mm, and net sheet (13) is nickelic stainless steel substrates, and thick is 0.5～1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410067212 CN1278925C (en) | 2004-10-15 | 2004-10-15 | Refractory lining for gasification furnace of producing synthesis gas by air-flow bed using hydrocarbon as raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410067212 CN1278925C (en) | 2004-10-15 | 2004-10-15 | Refractory lining for gasification furnace of producing synthesis gas by air-flow bed using hydrocarbon as raw material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1623891A CN1623891A (en) | 2005-06-08 |
| CN1278925C true CN1278925C (en) | 2006-10-11 |
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|---|---|---|---|
| CN 200410067212 Active CN1278925C (en) | 2004-10-15 | 2004-10-15 | Refractory lining for gasification furnace of producing synthesis gas by air-flow bed using hydrocarbon as raw material |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1994865B (en) | 2006-12-12 | 2011-05-18 | 华东理工大学 | Gasification device for two-stage gasification coupled with heat recovery and washing and its uses |
| CN101003358B (en) | 2006-12-12 | 2011-05-18 | 华东理工大学 | Multi nozzle gasification furnace feeding in hydrocarbon-including plasma or powder state |
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