CN221522421U - Lining improved bracket type double-chamber lime kiln - Google Patents
Lining improved bracket type double-chamber lime kiln Download PDFInfo
- Publication number
- CN221522421U CN221522421U CN202323335890.5U CN202323335890U CN221522421U CN 221522421 U CN221522421 U CN 221522421U CN 202323335890 U CN202323335890 U CN 202323335890U CN 221522421 U CN221522421 U CN 221522421U
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- CN
- China
- Prior art keywords
- mullite
- lime kiln
- silicon carbide
- fixedly provided
- lining
- 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.)
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- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 50
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 50
- 239000004571 lime Substances 0.000 title claims abstract description 50
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 83
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 83
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 57
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 50
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000011819 refractory material Substances 0.000 claims abstract description 39
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 29
- 239000010431 corundum Substances 0.000 claims abstract description 29
- 238000001354 calcination Methods 0.000 claims abstract description 28
- 239000007921 spray Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 16
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000036571 hydration Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000004901 spalling Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model relates to an inner lining improved bracket type double-hearth lime kiln which comprises a lime kiln body, wherein a hearth is fixed on the inner wall of the lime kiln body, a furnace top part is fixed on the top of the lime kiln body, a plurality of spray guns are fixed on the inner side wall of the furnace top part, the bottom of the furnace top part is fixed with an upper part of a preheating belt, the bottom of the upper part of the preheating belt is fixed with a lower part of the preheating belt, and the bottom of the lower part of the preheating belt is fixed with a straight upper part of a calcining belt. According to the bracket type double-chamber lime kiln with the improved lining, the high-alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite and high-alumina refractory material working layer components with different components and performances are arranged at different parts of the lime kiln, so that the requirements of different parts on the refractory lining in different use environments are met, the service life of the refractory material of the double-chamber lime kiln can be prolonged from 1-3 years to 5-6 years, the service life of the double-chamber lime kiln is prolonged obviously, and the maintenance frequency is reduced.
Description
Technical Field
The utility model relates to the technical field of double-chamber lime kilns, in particular to a bracket type double-chamber lime kiln with an improved lining.
Background
As the double-hearth lime kiln adopts advanced technologies of parallel-flow calcination, alternate firing calcination of two kiln hearths, multi-point fuel injection of a spray gun and the like, the lime is uniformly calcined, the activity is high, the yield is high, the heat utilization rate is high, and the double-hearth lime kiln is increasingly adopted to replace the original single-cylinder lime kiln.
The prior double-chamber lime kiln has the defects that the lining working layer of the refractory material is matched with the alkalinity of lime, and a large amount of alkaline refractory material lining parts such as magnesia bricks, magnesia-alumina spinel bricks, magnesia ramming materials and the like are used at the arch feet, the inner wall of the annular passage, the outer wall of the annular passage, the top of the annular passage, the connecting passage and the straight section part of the firing zone, but the alkaline material parts have the defects of easy hydration, large thermal expansion coefficient, large thermal stress, poor rapid cooling and rapid heating resistance and the like, and are easy to cause accidents such as hydration, spalling, collapse and the like of the lining of the alkaline refractory material during transportation, storage, masonry, kiln baking, temperature fluctuation in use and temporary kiln maintenance, so that the continuous, safe and long-term operation of the lime kiln is seriously affected.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides the bracket type double-chamber lime kiln with the improved lining, which has the advantages of prolonging the service life of equipment and the like, and solves the problems that the continuous, safe and long-term operation of the lime kiln is seriously affected due to the accidents of hydration pulverization, peeling, collapse and the like of the lining of an alkaline refractory material caused by the temperature fluctuation in transportation, storage, masonry, kiln drying and temporary kiln shutdown maintenance of the alkaline material.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a two thorax limekilns of inside lining improved generation bracket, includes the limekiln body, the inner wall of the limekiln body is fixed with the furnace, the top of the limekiln body is fixed with furnace roof position, the inside wall at furnace roof position is fixed with a plurality of spray guns, the bottom at furnace roof position is fixed with the preheating zone upper portion, the bottom of preheating zone upper portion is fixed with the preheating zone lower part, the bottom of preheating zone lower part is fixed with the straight section upper portion of calcining zone, the bottom of calcining zone straight section upper portion is fixed with the straight section lower part of calcining zone, the bottom of calcining zone straight section lower part is fixed with the annular channel top, the outside of annular channel top bottom is fixed with the annular channel outer wall, the inboard of annular channel top bottom is fixed with the annular channel inner wall, the bottom of annular channel outer wall is fixed with cooling zone upper portion, the bottom of cooling zone upper portion is fixed with the cooling zone lower part, the bottom of preheating zone upper portion is fixed with the preheating zone lower part, the bottom of connecting channel lower part is fixed with calcining zone straight section upper portion, the bottom of connecting channel top is fixed with the connecting channel between two chamotte, the bottom of the limekiln body is fixed with the connecting channel, the side wall is fixed with the refractory lining.
Further, the upper working layer of the cooling belt is one or more of high-alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high-alumina refractory materials, and the inner wall working layer of the annular channel is one or more of high-alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high-alumina refractory materials.
Further, the upper part of the straight section of the calcining zone and the lower working layer of the straight section of the calcining zone are one or more of high-alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high-alumina refractory materials, and the arch bridge and the arch leg are one or more of high-alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high-alumina refractory materials.
Further, the working layers of the annular channel top and the annular channel outer wall are one or more of high aluminum silicon carbide, mullite silicon carbide, corundum mullite, mullite or high aluminum refractory materials, and a smoke outlet is formed in the upper surface of the furnace top.
Further, the upper surfaces of the arch bridge and the arch foot are fixedly provided with a small arch crown upper leveling layer, and the small arch crown upper leveling layer is one or more of high aluminum silicon carbide, mullite silicon carbide, corundum mullite, mullite or high aluminum unshaped refractory materials.
Further, the working layers of the connecting channel top, the connecting channel side wall and the connecting channel bottom are one or more of high-alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high-alumina refractory materials.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
According to the bracket type double-chamber lime kiln with the improved lining, the high-alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high-alumina refractory material parts with different components and performances are arranged at different working layer positions of the lime kiln, so that the requirements of different positions on the refractory lining in different use environments are met, the service life of the refractory material of the double-chamber lime kiln can be prolonged from 1-3 years to 5-6 years, the service life of the double-chamber lime kiln is prolonged obviously, and the maintenance frequency is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure: the kiln comprises a lime kiln body 1, a hearth 2, a furnace top part 3, a spray gun 4, a preheating zone upper part 5, a preheating zone lower part 6, a calcining zone straight section upper part 7, a calcining zone straight section lower part 8, a ring-shaped channel top 9, a ring-shaped channel outer wall 10, a ring-shaped channel inner wall 11, a cooling zone upper part 12, a cooling zone lower part 13, a arch bridge and arch springing 14, a connecting channel top 15, a connecting channel side wall 16, a connecting channel bottom 17 and a refractory material lining 18.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, an improved bracket-type double-chamber lime kiln for lining in the present embodiment includes a lime kiln body 1, a furnace chamber 2 is fixed on an inner wall of the lime kiln body 1, a furnace top part 3 is fixed on a top of the lime kiln body 1, a smoke outlet is provided on an upper surface of the furnace top part 3, a plurality of spray guns 4 are fixed on an inner wall of the furnace top part 3, a preheating belt upper part 5 is fixed on a bottom of the preheating belt upper part 5, a preheating belt lower part 6 is fixed on a bottom of the preheating belt lower part 6, a calcining belt straight section upper part 7 is fixed on a bottom of the calcining belt straight section upper part 7, a calcining belt straight section lower part 8 is fixed on a bottom of the calcining belt straight section upper part 7, working layers of the calcining belt straight section upper part 7 and the calcining belt straight section lower part 8 are one or more of high aluminum silicon carbide, mullite silicon carbide, corundum mullite, mullite or high aluminum refractory materials, an annular channel roof 9 is fixed on a bottom of the calcining belt straight section lower part 8, an annular channel outer wall 10 is fixed on the outer side of the bottom of the annular channel top 9, the working layers of the annular channel top 9 and the annular channel outer wall 10 are one or more of high alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high alumina refractory materials, an annular channel inner wall 11 is fixed on the inner side of the bottom of the annular channel top 9, the working layers of the annular channel inner wall 11 are one or more of high alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high alumina refractory materials, a cooling belt upper part 12 is fixed on the bottom of the annular channel outer wall 10, the working layers of the cooling belt upper part 12 are one or more of high alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high alumina refractory materials, a cooling belt lower part 13 is fixed on the bottom of the cooling belt upper part 12, the bottom of the lime kiln body 1 is fixedly provided with an arch bridge and an arch foot 14, the upper surface of the arch bridge and the arch foot 14 is fixedly provided with a small vault upper leveling layer, the small vault upper leveling layer is one or more of high alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high alumina unshaped refractory materials, the arch bridge and the arch foot 14 are one or more of high alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high alumina refractory materials, the bottom of a connecting part between two kiln bores of the lime kiln body 1 is fixedly provided with a connecting channel top 15, the bottom of the connecting channel top 15 is fixedly provided with a connecting channel side wall 16, the bottom of the connecting channel side wall 16 is fixedly provided with a connecting channel bottom 17, the inner side wall of the lime kiln body 1 is fixedly provided with a refractory material lining 18, and the working layers of the connecting channel top 15, the connecting channel side wall 16 and the connecting channel bottom 17 are all one or more of high alumina silicon carbide, mullite silicon carbide, corundum, mullite or high alumina refractory materials.
In the embodiment, the alkali-neutral high-alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite and high-alumina refractory lining is adopted to replace the working layer part of the alkali refractory lining, and the high-alumina silicon carbide, mullite silicon carbide, corundum mullite or mullite and high-alumina refractory materials with different components and performances are arranged at different positions, so that the requirements of different positions and different use environments on the refractory lining are met, and the service life of the double-hearth lime kiln can be greatly prolonged.
The working principle of the embodiment is as follows:
The materials of the upper part 12 of the cooling belt, the outer wall 10 of the annular passage, the top 9 of the annular passage, the straight section of the burning belt and the working layer of the connecting passage are all made of acid-base neutral high-alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite and high-alumina refractory materials to replace the former lining made of alkaline refractory materials, the working layer of the inner wall 11 of the annular passage, the arch bridge and the arch foot 14 are made of high-alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite and high-alumina refractory materials to be used as the lining, and the materials are low in environmental sensitivity in production, transportation, preservation, masonry and use, small in thermal expansion coefficient, small in thermal stress and good in rapid cooling and heating resistance, and have high bearing capacity on temperature fluctuation, so that spalling and collapse caused by stress damage are not easy to occur, the service life of the refractory materials of the double-chamber lime kiln is prolonged from 1 to 3 years to 5 to 6 years, the service life of the double-chamber lime kiln is remarkably prolonged, and the maintenance frequency is reduced.
The high-alumina silicon carbide/mullite silicon carbide/corundum mullite/high-alumina refractory material comprises a shaped or unshaped refractory material which is manufactured by taking one or more of corundum, silicon carbide, alumina and mullite as a main raw material.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a lining improved generation bracket type double-chamber limekiln, includes lime kiln body (1), its characterized in that: the inner wall of the lime kiln body (1) is fixedly provided with a hearth (2), the top of the lime kiln body (1) is fixedly provided with a furnace top part (3), the inner side wall of the furnace top part (3) is fixedly provided with a plurality of spray guns (4), the bottom of the furnace top part (3) is fixedly provided with a preheating belt upper part (5), the bottom of the preheating belt upper part (5) is fixedly provided with a preheating belt lower part (6), the bottom of the preheating belt lower part (6) is fixedly provided with a calcining belt straight section upper part (7), the bottom of the calcining belt straight section upper part (7) is fixedly provided with a calcining belt straight section lower part (8), the bottom of the calcining belt straight section lower part (8) is fixedly provided with an annular channel top (9), the outer side of the bottom of the annular channel top (9) is fixedly provided with an annular channel outer wall (10), the inner side of the bottom of the annular channel top (9) is fixedly provided with an annular channel inner wall (11), the bottom of the annular channel outer wall (10) is fixedly provided with a cooling belt upper part (12), the bottom of the cooling belt upper part (12) is fixedly provided with a calcining belt lower part (13), the bottom of the calcining belt upper part (7) is fixedly provided with a calcining belt straight section lower part (8), the bottom of the lime kiln is fixedly provided with a side wall (16), the bottom of the lime kiln is fixedly provided with a side wall (15), the bottom of the lime kiln is fixedly connected with a side wall (15), the bottom of the side wall (1) is fixedly provided with a side wall (15), the lime kiln is characterized in that a connecting channel bottom (17) is fixed at the bottom of the connecting channel side wall (16), a refractory material lining (18) is fixed on the inner side wall of the lime kiln body (1), and the lining of the working layer at the upper part (7) of the straight section of the calcining zone and the lining of the working layer at the lower part (8) of the straight section of the calcining zone are one or more of high-alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high-alumina refractory materials.
2. A liner modified corbel double chamber lime kiln according to claim 1, wherein: the lining of the arch bridge and the arch leg (14) is one or more of high aluminum silicon carbide, mullite silicon carbide, corundum mullite, mullite or high aluminum refractory materials.
3. A liner modified corbel double chamber lime kiln according to claim 1, wherein: the inner lining of the annular channel inner wall (11) is one or more of high aluminum silicon carbide, mullite silicon carbide, corundum mullite, mullite or high aluminum refractory materials.
4. A liner modified corbel double chamber lime kiln according to claim 1, wherein: the lining parts of the working layers of the annular channel roof (9) and the annular channel outer wall (10) are one or more of high-alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high-alumina refractory materials, and a smoke outlet is formed in the upper surface of the furnace roof part (3).
5. A liner modified corbel double chamber lime kiln according to claim 1, wherein: the lining parts of the working layer are one or more of high-alumina silicon carbide, mullite silicon carbide, corundum mullite, mullite or high-alumina refractory materials.
6. A liner modified corbel double chamber lime kiln according to claim 1, wherein: the upper surfaces of the arch bridge and the arch leg (14) are fixedly provided with a small arch crown upper leveling layer, and the lining part of the small arch crown upper leveling layer is one or more of high aluminum silicon carbide, mullite silicon carbide, corundum mullite, mullite or high aluminum unshaped refractory materials.
7. A liner modified corbel double chamber lime kiln according to claim 1, wherein: the upper (12) working layer lining part of the cooling belt is one or more of high aluminum silicon carbide, mullite silicon carbide, corundum mullite, mullite or high aluminum refractory materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323335890.5U CN221522421U (en) | 2023-12-08 | 2023-12-08 | Lining improved bracket type double-chamber lime kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323335890.5U CN221522421U (en) | 2023-12-08 | 2023-12-08 | Lining improved bracket type double-chamber lime kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221522421U true CN221522421U (en) | 2024-08-13 |
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ID=92199730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323335890.5U Active CN221522421U (en) | 2023-12-08 | 2023-12-08 | Lining improved bracket type double-chamber lime kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221522421U (en) |
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2023
- 2023-12-08 CN CN202323335890.5U patent/CN221522421U/en active Active
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