CN205473614U - Central oxygen lance is used to coal gasification stove - Google Patents
Central oxygen lance is used to coal gasification stove Download PDFInfo
- Publication number
- CN205473614U CN205473614U CN201620025414.4U CN201620025414U CN205473614U CN 205473614 U CN205473614 U CN 205473614U CN 201620025414 U CN201620025414 U CN 201620025414U CN 205473614 U CN205473614 U CN 205473614U
- Authority
- CN
- China
- Prior art keywords
- oxygen lance
- bushing pipe
- shell
- high temperature
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000001301 oxygen Substances 0.000 title claims abstract description 50
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 50
- 239000003245 coal Substances 0.000 title claims abstract description 10
- 238000002309 gasification Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000002893 slag Substances 0.000 claims description 22
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 5
- 241000168254 Siro Species 0.000 claims description 3
- 239000008393 encapsulating agent Substances 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 238000009987 spinning Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 230000011218 segmentation Effects 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 abstract 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000003517 fume Substances 0.000 abstract 1
- 239000007769 metal material Substances 0.000 abstract 1
- 239000003566 sealing material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 13
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000004927 clay Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model provides a central oxygen lance is used to coal gasification stove, its characterized in that includes the steel shell of tube structure and the sediment of inside lining way bushing pipe, erects oxygen lance, return bend, horizontal oxygen lance, the auxiliary stay, be equipped with the clearance between shell and sediment way bushing pipe, it has light insulation sealing material to fill in the clearance, top and bottom at shell and sediment way bushing pipe are connected with the steel retaining ring respectively, unsmooth tang. The utility model discloses under high temperature high pressure, aggressive fume erosion and high grit thing abrasion's harsh operating mode, the center tube has very long non -maintaining life. The sediment say bushing pipe, auxiliary stay, return bend, to erect for the oxygen lance high temperature corrosion -resistant, stand wear and tear, the non -metallic material of oxytolerantization makes, has very long life. Erect the oxygen lance and adopt the segmentation to make, whenever connect with unsmooth tang between two sections, can effectively improve suddenly thermal behavior of its resistant rapid cooling, further improve the life of central oxygen lance.
Description
Technical field
This utility model belongs to coal chemical industry equipment, coal gasification furnace center oxygen lance technology.
Background technology
The coal gasification furnace center oxygen lance currently commonly used all uses heavy castable refractory manufacture slag road bushing pipe (3) and fill (4).Its shortcoming be the most wear-resisting, the life-span is short, and quality weight, external skin temperatures is high；With high temperature resistant stainless steel manufacture erect oxygen lance (8), bend pipe (7) and support (6), its shortcoming be the most wear-resistant under high temperature, be weak to burn into not resistance to oxidation, service life is short.Especially erecting oxygen lance top, under the common effect that 1300 DEG C of high temperature, Strong oxdiative edema caused by disorder of QI, various corrosive gas, high hard coal solid impurity particle wear and tear, quickly, Acceptable life is less than 50 days its disappearance speed.This patent center oxygen lance can overcome existing product not enough present on structure and material, and non-maintaining service life is up to more than 360 days and lightweight, easy for installation.
Summary of the invention
A kind of coal gasification furnace center oxygen lance, this utility model is characterised by, including shell and the slag road bushing pipe of liner of tube structure, perpendicular oxygen lance is located in slag road bushing pipe center and stretches out cover top portion, bend pipe is axially vertical with perpendicular oxygen lance to be connected, and horizontal oxygen lance is connected with bend pipe；Bottom bend pipe, it is provided with auxiliary supports support bend pipe and perpendicular oxygen lance；Between shell and slag road bushing pipe, it is provided with gap, gap is filled with light thermal-insulation encapsulant；It is connected to back-up ring in top and the bottom of shell with slag road bushing pipe.
This utility model erects oxygen lance and uses high temperature corrosion-resisting wear-resistant oxidation resistant material carborundum to be built in sections, with concavo-convex seam compact siro spinning technology between section and section.
The concrete way that this utility model realizes is:
1. selecting high-temperature wearable damage, nonmetallic materials (such as carborundum etc.) corrosion-resistant, resistance to oxidation, resistance to rapid heat cycle to manufacture perpendicular oxygen lance, bend pipe and auxiliary to support, its service life is more much longer than high temperature resistant stainless steel goods.
2. erect oxygen lance to be built in sections.With concavo-convex seam, connection between every two sections.Fill with flexible sealing clay in gap between recess and tang.Flexible sealing clay can effectively absorb the thermal stress between each section of perpendicular oxygen lance, thermal expansion, thus improves the service life of perpendicular oxygen lance further.
3., with the slag road bushing pipe that high-temperature wearable damages, corrosion-resistant, sludge proof nonmetallic materials (such as carborundum etc.) manufacture center oxygen lance slagging channel, its service life can be effectively improved.
4. do insulation with lightweight refracrory to fill, be filled in the gap between outer steel shell and slag road bushing pipe, on the one hand can reduce the external skin temperatures of outer steel shell, reduce heat-energy losses；On the other hand the weight of oxygen lance, convenient installation and maintenance can be alleviated again.
This utility model is under the harsh operating mode of High Temperature High Pressure, corrosive gas erosion and high grit thing erosive wear, and central canal has the longest non-maintaining service life.
Corrode and under the harsh operating mode of high grit thing erosive wear at High Temperature High Pressure, corrosive gas, slag road bushing pipe, auxiliary supports, the bend pipe made with the good nonmetallic materials of the wear-resistant oxidation resistent susceptibility of high temperature corrosion-resisting (such as carborundum etc.), erect oxygen lance and have the longest non-maintaining service life；Perpendicular oxygen lance is built in sections, and connects with concavo-convex seam, can be effectively improved its heat impact strength, improve the service life of center oxygen lance further between every two sections.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is I portion enlarged drawing.
Detailed description of the invention
Explanation in conjunction with specific embodiments: as shown in Figure 1, a kind of coal gasification furnace center oxygen lance, this utility model is characterised by, shell 1 and the slag road bushing pipe 3 of liner including tube structure, perpendicular oxygen lance 8 is located in slag road bushing pipe 3 center and stretches out shell 1 top, bend pipe 7 is axially vertical with perpendicular oxygen lance 8 to be connected, and horizontal oxygen lance 5 is connected with bend pipe 7；Bottom bend pipe 7, it is provided with auxiliary supports 6 support bend pipes 7 and perpendicular oxygen lance 8；Between shell 1 and slag road bushing pipe 3, it is provided with gap 11, gap 11 is filled with light thermal-insulation encapsulant 4；It is connected to back-up ring 2 in top and the bottom of shell 1 with slag road bushing pipe 3.
This utility model erects oxygen lance 8 and uses high temperature corrosion-resisting wear-resistant resistance to oxidation nonmetallic materials [such as carborundum etc.] to be built in sections, with concavo-convex seam 9,10 between section and section) compact siro spinning technology.
Shell 1 is made with common heat resisting steel.Back-up ring 2 and horizontal oxygen lance 5 are made with heat-resistance stainless steel.Slag road bushing pipe 3, auxiliary support 6, bend pipe 7 and perpendicular oxygen lance 8 carbofrax material high temperature burn till.High temperature resistant, wear-resistant, corrosion-resistant, resistance to oxidation, resistance to rapid heat cycle.Shell 1 selects common heat resisting steel to make, and its wall thickness selects according to its external diameter and in-furnace temperature and pressure, generally 10～50mm；Back-up ring 2 selects heat-resistance stainless steel to make, and its thickness is generally 25～50mm；Bushing pipe 3 carborundum high-temperature firing in slag road becomes, and its wall thickness is generally 20～50mm, selects according to the size of central canal slagging channel；Insulation is filled 4 selection light thermal-insulation castables and is made, and density 0.6～2.0 selects according to slagging channel temperature；Horizontal oxygen lance 5 selects heat-resistance stainless steel to make, and its wall thickness is generally 10～30mm, selects according to the pressure of pipe diameter size and carried gas；Auxiliary supports 6 selection carborundum high temperature and burns till, and bend pipe 7 provides auxiliary support force.Its structure is rectangle brick body, and its thickness and height Main Basis erect the weight of oxygen lance 8 and select；Bend pipe 7 selects carbofrax material high temperature entirety to burn till, and its wall thickness is generally 20～40mm, according to the length combined selection of pipe diameter size, gas pressure and perpendicular oxygen lance 8；Perpendicular oxygen lance 8 selects carbofrax material segmented high-temperature to burn till.Its wall thickness is generally 15～30mm, and according to pipe diameter size, gas pressure and vertical tube length combined selection, section length selects according to vertical tube length, and general every segmentation is no longer than 500mm.This example center oxygen lance heat resisting steel shell 1 external diameter Φ 850mm, thickness 20mm；Back-up ring 2 selects heat-resistance stainless steel to make, thickness 25mm；Slag road bushing pipe 3 burns till with carbofrax material high temperature, external diameter Φ 400mm, wall thickness 20mm；Gap 11 width 205mm, makes insulation filling 4 by light thermal-insulation castable, is tamped.Horizontal oxygen lance 5 is made with heat-resistance stainless steel, external diameter Φ 165mm, wall thickness 10mm；Auxiliary supports 6 and burns till by carbofrax material high temperature entirety, and length, width and height are respectively 400 × 115 × 115mm；Bend pipe 7 carbofrax material high temperature entirety is burnt till, external diameter Φ 210mm, wall thickness 20mm；Perpendicular oxygen lance 8 carbofrax material segmented high-temperature burns till, external diameter Φ 210mm, wall thickness 20mm；Overall length 2000mm, divides 5 sections and makes, every section of 400mm；Concavo-convex seam 9, (10) cross section are semicircle, recess 9 radius R10mm, tang 10 radius R8mm, and gap 12 is 2mm, fill with special high-temperature flexibility clay.
Actually used operating mode: furnace pressure 0.6MPa, temperature 1250 DEG C.
Oxygen blast pressure 1MPa, slag road pressure 0.6MPa, slag channel temp 950 DEG C.
Claims (1)
1. a coal gasification furnace center oxygen lance, it is characterised in that include the steel shell (1) of tube structure and liner
Slag road bushing pipe (3), perpendicular oxygen lance (8) is located at bushing pipe (3) interior center, slag road and stretches out shell (1) top, bend pipe (7)
Axially vertical with perpendicular oxygen lance (8) being connected, horizontal oxygen lance (5) is connected with bend pipe (7)；It is provided with auxiliary in bend pipe (7) bottom
Help support (6) support bend pipe (7) and perpendicular oxygen lance (8)；Gap (11) it is provided with between shell (1) and slag road bushing pipe (3),
Light thermal-insulation encapsulant (4) it is filled with in gap (11)；Top and bottom in shell (1) and slag road bushing pipe (3)
It is connected to steel back-up ring (2)；Wherein, slag road bushing pipe (3), auxiliary support (6), bend pipe (7) high temperature corrosion-resisting,
Wear-resistant, sludge proof carborundum is made；Perpendicular oxygen lance (8) uses high temperature corrosion-resisting wear-resistant sludge proof carborundum division system
Become, with concavo-convex seam (9,10) compact siro spinning technology between section and section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620025414.4U CN205473614U (en) | 2016-01-12 | 2016-01-12 | Central oxygen lance is used to coal gasification stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620025414.4U CN205473614U (en) | 2016-01-12 | 2016-01-12 | Central oxygen lance is used to coal gasification stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205473614U true CN205473614U (en) | 2016-08-17 |
Family
ID=56667167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620025414.4U Withdrawn - After Issue CN205473614U (en) | 2016-01-12 | 2016-01-12 | Central oxygen lance is used to coal gasification stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205473614U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419880A (en) * | 2016-01-12 | 2016-03-23 | 胡光雄 | Center oxygen lance for coal gasifier |
-
2016
- 2016-01-12 CN CN201620025414.4U patent/CN205473614U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419880A (en) * | 2016-01-12 | 2016-03-23 | 胡光雄 | Center oxygen lance for coal gasifier |
| CN105419880B (en) * | 2016-01-12 | 2017-12-01 | 胡光雄 | A kind of coal gasification furnace center oxygen lance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170503 Address after: 651500 Yunnan city of Kunming province Luquan Chongde Industrial Park Patentee after: Kunming Luquan Deli silicon carbide product Co., Ltd. Address before: 651700 Yunnan Province, Kunming city Luquan County Industrial Park Chong de force silicon carbide products Co. Ltd. Patentee before: Hu Guangxiong |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160817 Effective date of abandoning: 20171201 |