CN205048472U - Resistant ultra -temperature oven - Google Patents
Resistant ultra -temperature oven Download PDFInfo
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- CN205048472U CN205048472U CN201520498317.2U CN201520498317U CN205048472U CN 205048472 U CN205048472 U CN 205048472U CN 201520498317 U CN201520498317 U CN 201520498317U CN 205048472 U CN205048472 U CN 205048472U
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Abstract
The utility model provides a resistant ultra -temperature oven, inboard in steel shell (1), the lining has one deck metal material lining (2), is equipped with the interval between these metal material lining (2) and steel shell (1), and this interval space is water jacket layer (2A), inboard in metal material lining (2), again the lining cutting have medium temperature heat -conducting layer (3) that the one deck was made with medium temperature resistant, high coefficient of heat conductivity refractory material, inboard in medium temperature heat -conducting layer (3), lining cutting one deck high temperature transition layer (4) of making with high temperature resistant refractory material again, inboard in high temperature transition layer (4), super high temperature resistant flame retardant coating (5) that the resistant refractory material who surmounts the temperature made are used to the lining cutting one deck again, be equipped with between metal material lining (2) and medium temperature heat -conducting layer (3) clearance (6), be filled with heat conduction refractory mortar (7) of making with high coefficient of heat conductivity refractory powder in clearance (6) intussuseption. The utility model has the advantages of with low costs, can be in long -term non -maintaining use under the 2400 DEG C super high temperature.
Description
Technical field
The utility model belongs to Coal Gasification industry, solid-state bed coal gasification furnace protecting wall structure technology.
Background technology
Existing solid-state bed coal gasification furnace furnace wall, main with outer steel shell lining metal water jacket, then serve as a contrast the structure of silicon carbide brick.Utilize the temperature of silicon carbide brick ability about 1600 DEG C, the advantage that heat conductivility is good again, lowered the temperature to silicon carbide brick by metal water jacket, thus provide safety guarantee for silicon carbide brick.Reliability is not high although this structure is simple! Because of the high temperature combustion zone temperatures as high more than 2400 DEG C of solid-state bed coal gasification furnace, when the working of a furnace is abnormal, high temperature combustion zone can offset.Once high temperature combustion zone offsets, the furnace wall temperature near high temperature combustion zone is by rapidly more than 1600 DEG C, and under the condition of high temperature, high pressure, oxygen enrichment, silicon carbide brick furnace wall is damaged very soon.So the fault rate of this furnace wall is very high, and furnace life is very short.
Summary of the invention
The utility model furnace wall, can overcome the major defect that existing furnace wall exists, can ensure furnace wall long-term non-maintaining normal use at 2400 DEG C of temperature, and building cost be low.
A kind of superhigh temperature resistant furnace wall, the utility model feature is: in the inner side of steel shell, is lined with layer of metal material cushion, is provided with spacing between this metal material lining and steel shell, and this pitch space is water jacket layer; In the inner side of metal material lining, then lining cutting has the medium heatproof of one deck, high thermal conductivity coefficient refractory material warm heat-conducting layer in making; In the inner side of middle temperature heat-conducting layer, then the high temperature transition zone that lining cutting one deck high-temperature resistant refractory material is made; In the inner side of high temperature transition zone, then the superelevation heatproof flame retardant coating that the refractory material of lining cutting one deck superhigh temperature resistant degree is made; Between metal material lining and middle temperature heat-conducting layer, be provided with gap, in gap, be filled with the heat conduction refractory mortar made with high thermal conductivity coefficient refractory powder.
The utility model offers concavo-convex seam in order to four non-static fields bricklaying surfaces of the lining cutting furnace wall superhigh temperature refractory brick of the superelevation heatproof flame retardant coating of inner side, wherein adjacent two sides is convex seam, corresponding another two sides is spill seam, and the concavo-convex seam of adjacent superhigh temperature refractory brick of building by laying bricks or stones closely cooperates mutually.
The utility model manufacturing process is:
1, select the refractory material of superhigh temperature resistant degree as zirconia etc., make the superelevation heatproof flame retardant coating of furnace wall innermost layer.The high temperature of the extreme temperature refractory abilities such as zirconia more than 2400 DEG C, in high temperature combustion zone near time, superhigh temperature flame retardant coating can not because of high temperature failure.
2, the thickness of superhigh temperature refractory brick is generally no more than 1/4th of furnace wall gross thickness.Because extreme temperature refractory is very expensive, under the prerequisite ensureing service life, reduce thickness and can reduce construction cost.
3, the bricklaying surface in four non-footpaths of superhigh temperature refractory brick is designed with concavo-convex seam, ensure that and uses the superelevation heatproof flame retardant coating of thinner superhigh temperature laying fireproof bricks to have good structural stability and sealing.
4, select refractoriness at the high temperature transition zone of high-temperature resistant refractory material (as corundum etc.) the manufacture furnace wall of about 2000 DEG C.Thickness in order to build the refractory brick of high temperature transition zone by laying bricks or stones is generally no more than 1/4th of furnace wall gross thickness.
5, select refractoriness at about 1600 DEG C, the middle temperature heat-conducting layer of furnace wall manufactured by the special refractories of thermal conductivity factor more than 15 (as carborundum etc.).Utilize the high thermal conductivity of silicon carbide brick, the heat conduction of internal layer furnace lining is taken away to metal water cover, thus reduce the temperature of internal layer furnace lining, improve the security of internal layer furnace lining further.
6, the good metal material of thermal conductivity is selected to manufacture metal water jacket lining, to improve the heat transfer efficiency of water jacket.
7, for warm heat-conducting layer in guarantee contacts well with metal water jacket lining, gap is provided with between.The width in gap is generally 20-50mm, and heat conduction refractory mortar made by centre high thermal conductivity coefficient refractory powder, and cast-in-site or ramming tamp, thus guarantees high heat conduction efficiency.
The beneficial effects of the utility model are: be responsible for by superelevation heatproof flame retardant coating resisting 2400 DEG C of high temperature that may occur near furnace wall; The high temperature of opposing about 1850 DEG C is responsible for by high temperature transition zone; Be responsible for the temperature of opposing about 1600 DEG C by middle temperature heat-conducting layer, meanwhile, be responsible for the heat that high temperature transition zone transmits to pass to heat conduction refractory mortar fast; Middle temperature heat-conducting layer and metal water cover closely link into an integrated entity by heat conduction refractory mortar, and the heat that middle temperature heat-conducting layer transmits is passed to metal water jacket fast; Carry heat is gone out furnace wall by recirculated water by metal water jacket, thus oppositely progressively reduces the temperature of each lining in furnace wall, and when guaranteeing to occur 2400 DEG C of high temperature near furnace wall, liner each layer refractory material all can not be damaged.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Detailed description of the invention
As shown in Figure 1, a kind of superhigh temperature resistant furnace wall, the utility model feature is: in the inner side of steel shell 1, is lined with layer of metal material cushion 2, is provided with spacing between this metal material lining 2 and steel shell 1, and this pitch space is water jacket layer 2A; In the inner side of metal material lining 2, then lining cutting has the medium heatproof of one deck, high thermal conductivity coefficient refractory material warm heat-conducting layer 3 in making; In the inner side of middle temperature heat-conducting layer 3, then the high temperature transition zone 4 that lining cutting one deck high-temperature resistant refractory material is made; In the inner side of high temperature transition zone 4, then the superelevation heatproof flame retardant coating 5 that the refractory material of lining cutting one deck superhigh temperature resistant degree is made; Between metal material lining 2 and middle temperature heat-conducting layer 3, be provided with gap 6, in gap 6, be filled with the heat conduction refractory mortar 7 made with high thermal conductivity coefficient refractory powder.
The utility model offers concavo-convex seam in order to four non-static fields bricklaying surfaces of the lining cutting furnace wall superhigh temperature refractory brick of the superelevation heatproof flame retardant coating 5 of inner side, wherein adjacent two sides is convex seam 8, corresponding another two sides is spill seam 9, and the concavo-convex seam of adjacent superhigh temperature refractory brick of building by laying bricks or stones closely cooperates mutually.
The utility model manufacturing process is:
1, select the refractory material of superhigh temperature resistant degree as zirconia etc., make the superelevation heatproof flame retardant coating 5 of furnace wall innermost layer.The high temperature of the extreme temperature refractory abilities such as zirconia more than 2400 DEG C, in high temperature combustion zone near time, superhigh temperature flame retardant coating can not because of high temperature failure.
2, the thickness of superhigh temperature refractory brick is generally no more than 1/4th of furnace wall gross thickness.Because extreme temperature refractory is very expensive, under the prerequisite ensureing service life, reduce thickness and can reduce construction cost.
3, the bricklaying surface in four non-footpaths of superhigh temperature refractory brick is designed with concavo-convex seam, ensure that and uses the superelevation heatproof flame retardant coating 5 of thinner superhigh temperature laying fireproof bricks to have good structural stability and sealing.
4, refractoriness is selected to manufacture the high temperature transition zone 4 of furnace wall at high-temperature resistant refractory material such as the corundum etc. of about 2000 DEG C.Thickness in order to build the refractory brick of high temperature transition zone 4 by laying bricks or stones is generally no more than 1/4th of furnace wall gross thickness.
5, select refractoriness at about 1600 DEG C, the special refractories of thermal conductivity factor more than 15 such as carborundum etc. manufactures warm heat-conducting layer 3 in furnace wall.Utilize the high thermal conductivity of silicon carbide brick, the heat conduction of internal layer furnace lining is taken away to metal water cover, thus reduce the temperature of internal layer furnace lining 4,5, improve the security of internal layer furnace lining further.
6, the good metal material of thermal conductivity is selected to manufacture metal material lining 2, to improve the heat transfer efficiency of water jacket layer 2A.
7, for warm heat-conducting layer 3 in guarantee contacts with metal material lining 2 well, gap 6 is provided with between.The width in gap 6 is generally 20-50mm, and heat conduction refractory mortar made by centre high thermal conductivity coefficient refractory powder, and cast-in-site or ramming tamp, thus guarantees higher heat conduction efficiency.
The utility model superhigh temperature resistant furnace wall, its agent structure is made up of steel shell 1, metal material lining 2, water jacket layer 2A, gap 6, heat conduction refractory mortar 7, middle temperature heat-conducting layer 3, high temperature transition zone 4 and superelevation heatproof flame retardant coating 5.Steel casing 1 selects common heat resisting steel to manufacture, and its thickness is selected according to furnace pressure; Metal material lining 2 also selects heat resisting steel to manufacture; 20-50mm is generally selected in gap 6; Carborundum selected by the main material of heat conduction refractory mortar 7; Middle temperature heat-conducting layer 3 selects carbofrax material, and ability 1600 DEG C and heat conductivility are good, and oxidation resistance is also strong; High temperature transition zone 4 selects pure corundum refractory, and refractoriness can reach 2000 DEG C, can at 1800 DEG C of temperature Long-Time Service, the short time can resist 1900 DEG C of high temperature.Its thickness is chosen as 1/4-1/5 of furnace wall gross thickness; Superelevation heatproof flame retardant coating 5 selects zirconia refractory, normally can use, and elevated temperature strength is large under 2400 DEG C of superhigh temperature.Its thickness is generally about 1/4 of furnace wall gross thickness, and too thick then manufacturing cost is too high.Four non-static fields bricklaying surfaces of zirconia brick are designed with concavo-convex seam, thinner Zircite superhigh temperature flame retardant coating can be made to have better structural stability and sealing thermal insulation.When there is 2400 DEG C of high temperature inside furnace wall, zirconia flame retardant coating 5 withstands high temperature, and protection each flame retardant coating is thereafter not damaged; Heat conduction on zirconia refractory brick is constantly taken away to water jacket layer 2A through high temperature transition zone 4 by carborundum heat-conducting layer 3, thus ensures the use safety of zirconia refractory brick.
The present embodiment furnace wall internal diameter 3600mm, the thick 420mm in furnace wall, furnace pressure 3MPa, high temperature combustion zone theoretical maximum temperature 2400 DEG C.Wherein steel casing 1 is 245R heat resisting steel, and thickness is 40mm; Metal material lining 2 material is 245R, thick 20mm; Water jacket layer 2A width is 80mm; Gap 6 width 30mm, tamps with carborundum refractory mortar ramming; Middle temperature heat-conducting layer (3) is built by laying bricks or stones with silicon carbide brick, thickness 120mm; The pure corundum refractory brick of high temperature transition zone 4 is built by laying bricks or stones, thickness 65mm; Superelevation heatproof flame retardant coating 5 zirconia seam brick masonry, thickness 65mm.
Claims (2)
1. a superhigh temperature resistant furnace wall, it is characterized in that: in the inner side of steel shell (1), be lined with layer of metal material cushion (2), be provided with spacing between this metal material lining (2) and steel shell (1), this pitch space is water jacket layer (2A); In the inner side of metal material lining (2), then lining cutting has the medium heatproof of one deck, high thermal conductivity coefficient refractory material warm heat-conducting layer (3) in making, and medium heatproof refers to the temperature of resistance to 1600 DEG C; In the inner side of middle temperature heat-conducting layer (3), then the high temperature transition zone (4) that lining cutting one deck high-temperature resistant refractory material is made; In the inner side of high temperature transition zone (4), then the superelevation heatproof flame retardant coating (5) that the refractory material of lining cutting one deck superhigh temperature resistant degree is made; Between metal material lining (2) and middle temperature heat-conducting layer (3), be provided with gap (6), in gap (6), be filled with the heat conduction refractory mortar (7) that high thermal conductivity coefficient refractory powder is made.
2. a kind of superhigh temperature resistant furnace wall as claimed in claim 1, it is characterized in that, four non-static fields bricklaying surfaces in order to the lining cutting furnace wall superhigh temperature refractory brick of the superelevation heatproof flame retardant coating (5) of inner side offer concavo-convex seam, wherein adjacent two sides is convex seam (8), corresponding another two sides is spill seam (9), and the concavo-convex seam of adjacent superhigh temperature refractory brick of building by laying bricks or stones closely cooperates mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520498317.2U CN205048472U (en) | 2015-07-10 | 2015-07-10 | Resistant ultra -temperature oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520498317.2U CN205048472U (en) | 2015-07-10 | 2015-07-10 | Resistant ultra -temperature oven |
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| CN205048472U true CN205048472U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520498317.2U Expired - Fee Related CN205048472U (en) | 2015-07-10 | 2015-07-10 | Resistant ultra -temperature oven |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671935A (en) * | 2019-10-15 | 2020-01-10 | 西安成航炉业有限公司 | Square furnace lining made of refractory material and used for 2500 ℃ tungsten-molybdenum sintering furnace |
-
2015
- 2015-07-10 CN CN201520498317.2U patent/CN205048472U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671935A (en) * | 2019-10-15 | 2020-01-10 | 西安成航炉业有限公司 | Square furnace lining made of refractory material and used for 2500 ℃ tungsten-molybdenum sintering furnace |
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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: 20170502 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 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 |