CN101709229B - Coal water slurry process burner with long service life and method for manufacturing same - Google Patents
Coal water slurry process burner with long service life and method for manufacturing same Download PDFInfo
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- CN101709229B CN101709229B CN200910250098A CN200910250098A CN101709229B CN 101709229 B CN101709229 B CN 101709229B CN 200910250098 A CN200910250098 A CN 200910250098A CN 200910250098 A CN200910250098 A CN 200910250098A CN 101709229 B CN101709229 B CN 101709229B
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Abstract
The invention belongs to the field of coal chemical engineering of pressurized gasification of coal water slurry, in particular relates to a coal water slurry process burner with a long service life, which is used for a coal water slurry pressurized gasification furnace, and a method for manufacturing the same. The process burner consists of an inner burner, a middle burner and an outer burner, which have a streamlined front closing end and are coaxially sleeved, wherein the inner wall surface of the middle burner and the outer wall surface of the outer burner are coated with abrasion resistant coatings respectively, and because of the coating of the abrasion resistant coatings, the user performance of the process burner under severe working conditions is improved, the service life of the process burner is greatly prolonged, the operating time of the gasification furnace is prolonged, the shutdown maintenance frequency is lowered, and the factory cost is lowered.
Description
Technical field
The invention belongs to the coal chemical technology of water coal slurry pressure gasification, be specifically related to the coal water slurry process burner and the working method thereof in a kind of LP work-ing life that is used for coal water slurry pressurized gasifier.
Background technology
Coal water slurry process burner is the key part of water coal slurry pressure gasification technology, and it is worked under high temperature, highly compressed environment.Known coal water slurry process burner structure is made up of coaxial interior burner 1, middle burner 2 and the outer burner 3 with the end that closes up before streamlined that is nested with from the inside to the outside; Be the inside and outside mixed aerosol forms of three streamings; Outer flow passage and inner flow passage are carried high pressure oxygen; Middle runner is carried the high pressure water coal slurry, behind central oxygen and coal slurry half premix, mixes outward with outer epoxy and carry out atomizing burnerization.Process burner is usually operated under the severe condition of HTHP; In the high-temperature burner hearth more than 1000 ℃; Burner bears washing away of furnace flame and material, and thermal etching is the major causes that influence the process burner performance with wearing and tearing, and wherein the thermal etching of outer burner be full of cracks is serious; Middle burner erosion corrosion is the most serious.Therefore generally process burner is shorter work-ing life, generally uses 40-60 days needs to change or keep in repair.Each burner of changing all needs blowing out (or fall stove), and vapourizing furnace production line long-term operation is restricted, and the each blowing out of enterprise is fallen the average loss of stove up to 1,000,000 yuan.Thereby the work-ing life of vapourizing furnace process burner is shorter relatively, becomes the bottleneck of water coal slurry pressure gasification production line long-term operation, also is a technical barrier in the present stage industry.
Summary of the invention
The objective of the invention is to the short high problem of frequency of reprocessing in the work-ing life of existing process burner; A kind of have the LP coal water slurry process burner and the working method thereof in work-ing life have been proposed; Thereby significantly improved the work-ing life of process burner; Realized new technological breakthrough, for coal chemical industry enterprises reduces running cost, increasing the benefit provides technical guarantee.
For realizing above-mentioned purpose; Technical scheme of the present invention is following: a kind of have a LP coal water slurry process burner in work-ing life; Constitute by coaxial streamlined preceding interior burner, middle burner and the outer burner that closes up end that have that is nested with; Wherein, in described the burner inner-wall surface and outside the burner outside wall surface be coated with wear-resistant coating respectively; The coated material of middle burner inner-wall surface is a FF0201 tungsten-bast alloy powder, and each component and the quality percentage composition thereof of FF0201 tungsten-bast alloy powder are: Co23～28%, C4～10%, W62～70%; The coated material of outer burner outside wall surface is a FF0501 croloy powder, and each component and the quality percentage composition thereof of FF0501 croloy powder are: Cr48～52%, Ni surplus.
Aforesaid have a LP coal water slurry process burner in work-ing life, and wherein, the coat-thickness of middle burner inner-wall surface is 0.2mm～0.6mm; The coat-thickness of outer burner outside wall surface is 0.4mm～0.8mm.
A kind of have a LP coal water slurry process burner working method in work-ing life, comprises the steps:
Step 1, centering burner inner-wall surface carries out de-oiling with outer burner outside wall surface and surface coarsening is handled;
Step 2, centering burner inner-wall surface spraying FF0201 powder is as wear-resistant coating;
Step 3, externally burner outside wall surface spraying FF0501 powder is as refractory coating;
Step 4, after intact typing for some time to be sprayed, internally burner, middle burner and outer burner are assembled welding.
Further, aforesaid have a LP coal water slurry process burner working method in work-ing life, and wherein, surface coarsening is handled and adopted the Quench iron sand in the step 1, and its hardness is 97HRC.
Further, aforesaid have a LP coal water slurry process burner working method in work-ing life, wherein, and the spray material FF0201 powder that is adopted in the step 2; Coat-thickness is 0.2mm～0.6mm.
Further, aforesaid have a LP coal water slurry process burner working method in work-ing life, and wherein, the spray material FF0501 powder that is adopted in the step 3, coat-thickness are 0.4mm～0.8mm.
Further, aforesaid have a LP coal water slurry process burner working method in work-ing life, and wherein, the spraying method that is adopted in step 2 and the step 3 is a plasma spraying.
The present invention's beneficial effect compared with prior art is following:
(1) through centering burner inner-wall surface spraying FF0201 coating, thus the wear resisting property of burner inner-wall surface in improving;
(2) through external burner outside wall surface spraying FF0501 coating, thus the resistance to elevated temperatures of the outer burner outside wall surface of raising;
(3) improved the use properties of process burner under its bad working environments through above spraying, thereby driven the time so can increase vapourizing furnace the work-ing life of improving process burner greatly, reduced the parking frequency of maintenance, for producer has reduced production cost.
Description of drawings
Fig. 1 is the structural representation of burner of the present invention;
Fig. 2 is the schema of working method of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.
The structure of the coal water slurry process burner with LP work-ing life provided by the present invention is as shown in Figure 1, is made up of coaxial interior burner 1, middle burner 2 and the outer burner 3 with the end that closes up before streamlined that is nested with.Interior burner 1, middle burner 2 and outer burner 3 are fixedly connected through weldprocedure.The inner-wall surface of middle burner 2 and outside the outside wall surface of burner 3 be coated with wear-resistant coating respectively.
The material of the coating 4 of middle burner inner-wall surface is the tungsten-bast alloy powder, and each component and the quality percentage composition thereof of FF0201 tungsten-bast alloy powder are: Co23～28%, C4～10%, W62～70%; The thickness of the coating 4 of middle burner inner-wall surface is 0.2mm～0.6mm, can select scope 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm etc. for use.
The material of the coating 5 of outer burner outside wall surface is a FF0501 croloy powder; Each component and the quality percentage composition thereof of FF0501 croloy powder are: Cr48～52%, Ni surplus; The thickness of the coating 5 of outer burner outside wall surface is 0.4mm～0.8mm, can select for use scope 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, etc.
Above-mentioned to have the coal water slurry process burner working method in LP work-ing life as shown in Figure 2, comprises the steps:
Step 1, centering burner inner-wall surface carries out de-oiling with outer burner outside wall surface and surface coarsening is handled;
Step 2, centering burner inner-wall surface spraying FF0201 composite powder is as wear-resistant coating;
Step 3, externally burner outside wall surface spraying FF0501 composite powder is as refractory coating;
Step 4, after intact typing for some time to be sprayed, internally burner, middle burner and outer burner are assembled welding.
In step 1, the surface coarsening of wall to be sprayed is handled and is adopted the Quench iron sand, and its hardness is 97 (HRC); The spraying method that is adopted in step 2 and the step 3 is a plasma spraying; For guaranteeing coating quality, spraying is accomplished typing after about 1 hour in the step 4, can assemble welding to three layers of burner.
The present invention is through carrying out rational spray treatment to receiving the serious middle burner inner-wall surface of coal slurry erosion and receiving thermal-flame to corrode serious outer burner outside wall surface; Effectively raise process burner in its following work-ing life of harsh working conditions and use properties; Having improved whole vapourizing furnace technology drives working time; Reduce the parking maintenance times, thereby greatly reduced the cost of producer.After using this novel gasifier nozzle; Promote former process burner and surpass 50% work-ing life, reach continuous operation or do not keep in repair twice operation, effectively raise whole vapourizing furnace technology and drive working time above 90 days; Reduced the parking maintenance times, also can bring benefit safety operation.
Claims (7)
1. one kind has the LP coal water slurry process burner in work-ing life; By coaxial interior burner (1), middle burner (2) and outer burner (3) formation that is nested with, it is characterized in that with the end that closes up before streamlined: in described the burner inner-wall surface and outside the burner outside wall surface be coated with wear-resistant coating (4,5) respectively; Coating (4) material of middle burner inner-wall surface is a FF0201 tungsten-bast alloy powder, and each component and the quality percentage composition thereof of FF0201 tungsten-bast alloy powder are: Co 23～28%, C 4～10%, W 62～70%; The coating of outer burner outside wall surface (5) material is a FF0501 croloy powder, and each component and the quality percentage composition thereof of FF0501 croloy powder are: Cr 48～52%, Ni surplus.
2. as claimed in claim 1 have a LP coal water slurry process burner in work-ing life, and it is characterized in that: the coating of middle burner inner-wall surface (4) thickness is 0.2mm～0.6mm; The coating of outer burner outside wall surface (5) thickness is 0.4mm～0.8mm.
3. one kind has the LP coal water slurry process burner working method in work-ing life, comprises the steps:
Step 1, centering burner inner-wall surface carries out de-oiling with outer burner outside wall surface and surface coarsening is handled;
Step 2, centering burner inner-wall surface spraying FF0201 powder is as wear-resistant coating; Each component and the quality percentage composition thereof of FF0201 powder are: Co 23～28%, C 4～10%, W 62～70%;
Step 3, externally burner outside wall surface spraying FF0501 powder is as refractory coating; Each component and the quality percentage composition thereof of FF0501 powder are: Cr 48～52%, Ni surplus;
Step 4, after the intact typing to be sprayed, burner, middle burner and outer burner in welding and the assembling.
4. as claimed in claim 3 have a LP coal water slurry process burner working method in work-ing life, it is characterized in that: the roughening treatment of Quench iron sand is adopted on the surface in the step 1.
5. as claimed in claim 3 have a LP coal water slurry process burner working method in work-ing life, and it is characterized in that: the spray material FF0201 powder that is adopted in the step 2, coat-thickness are 0.2mm～0.6mm.
6. as claimed in claim 3 have a LP coal water slurry process burner working method in work-ing life, and it is characterized in that: the spray material FF0501 powder that is adopted in the step 3, coat-thickness are 0.4mm～0.8mm.
7. describedly have a LP coal water slurry process burner working method in work-ing life like claim 5 or 6, it is characterized in that: the spraying method in step 2 and the step 3 adopts plasma spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910250098A CN101709229B (en) | 2009-12-04 | 2009-12-04 | Coal water slurry process burner with long service life and method for manufacturing same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910250098A CN101709229B (en) | 2009-12-04 | 2009-12-04 | Coal water slurry process burner with long service life and method for manufacturing same |
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| Publication Number | Publication Date |
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| CN101709229A CN101709229A (en) | 2010-05-19 |
| CN101709229B true CN101709229B (en) | 2012-10-10 |
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| CN200910250098A Active CN101709229B (en) | 2009-12-04 | 2009-12-04 | Coal water slurry process burner with long service life and method for manufacturing same |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103073225A (en) * | 2012-12-27 | 2013-05-01 | 西安航天远征流体控制股份有限公司 | Method for prolonging service life of metal burner |
| CN107541293A (en) | 2016-06-23 | 2018-01-05 | 通用电气公司 | Vaporization element formed with chrome coating and the method with chrome coating protection vaporization element |
| CN109609194B (en) * | 2018-12-27 | 2020-12-15 | 西安元创化工科技股份有限公司 | Slurry and oxygen feeding control method of multi-channel nozzle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86200359U (en) * | 1986-01-20 | 1987-06-03 | 吴柏森 | Fluid nozzle for furnace |
| CN2489202Y (en) * | 2001-07-10 | 2002-05-01 | 陕西杨凌航天节水科技股份有限公司 | Burner with water-cooling wall technique of coal-water slurry |
| CN2656824Y (en) * | 2003-11-07 | 2004-11-17 | 四川省九达水煤浆技术产业有限公司 | Long service life water-coal slurry burner nozzle |
| CN201280543Y (en) * | 2008-10-08 | 2009-07-29 | 兖矿国泰化工有限公司 | Technical burner for water-coal-slurry gasification furnace |
-
2009
- 2009-12-04 CN CN200910250098A patent/CN101709229B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86200359U (en) * | 1986-01-20 | 1987-06-03 | 吴柏森 | Fluid nozzle for furnace |
| CN2489202Y (en) * | 2001-07-10 | 2002-05-01 | 陕西杨凌航天节水科技股份有限公司 | Burner with water-cooling wall technique of coal-water slurry |
| CN2656824Y (en) * | 2003-11-07 | 2004-11-17 | 四川省九达水煤浆技术产业有限公司 | Long service life water-coal slurry burner nozzle |
| CN201280543Y (en) * | 2008-10-08 | 2009-07-29 | 兖矿国泰化工有限公司 | Technical burner for water-coal-slurry gasification furnace |
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| CN101709229A (en) | 2010-05-19 |
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Effective date of registration: 20170208 Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing Inst. of Aerospace Dynamics |
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Effective date of registration: 20170323 Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing wing wing Technology Co., Ltd. Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation |
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Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing aviate energy saving and Environmental Protection Technology Co., Ltd. Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing wing wing Technology Co., Ltd. |