CN203699937U - System for producing alpha-Al2O3 by adopting predecomposition process by taking hydrogen and aluminum as raw materials - Google Patents
System for producing alpha-Al2O3 by adopting predecomposition process by taking hydrogen and aluminum as raw materials Download PDFInfo
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- CN203699937U CN203699937U CN201420016725.5U CN201420016725U CN203699937U CN 203699937 U CN203699937 U CN 203699937U CN 201420016725 U CN201420016725 U CN 201420016725U CN 203699937 U CN203699937 U CN 203699937U
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- China
- Prior art keywords
- cyclone preheater
- pipeline
- gas
- arranges
- cooler
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- 239000002994 raw material Substances 0.000 title claims abstract description 17
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 14
- 239000001257 hydrogen Substances 0.000 title claims abstract description 14
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title abstract description 8
- 229910052594 sapphire Inorganic materials 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract description 59
- 239000007789 gas Substances 0.000 claims abstract description 57
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000003345 natural gas Substances 0.000 claims abstract description 15
- 239000004411 aluminium Substances 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000003837 high-temperature calcination Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- -1 adopt tunnel furnace Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Furnace Details (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model relates to a system for producing alpha-Al2O3 by adopting a predecomposition process by taking hydrogen and aluminum as raw materials. The system consists of a feeding system, a Venturi drier, a cyclone preheater I, a cyclone preheater II, a cyclone preheater III, a roasting furnace, a natural gas combustor, a natural gas combustor for a kiln, a rotary kiln, a cooler and a dedusting system, wherein the Venturi drier (2) is arranged on one side of the feeding system (1), the material and gas outlet and the gas inlet of the Venturi drier (2) are respectively provided with a pipeline, the other end of each pipe is respectively provided with the cyclone preheater I (3) and the cyclone preheater I (4), the gas outlet and the material outlet of the cyclone preheater I (3) are respectively provided with a pipeline, the other end of the gas outlet pipeline of the cyclone preheater I (3) is provided with the dedusting system (11), a pipeline is arranged between the material outlet of the cyclone preheater I (3) and the material and gas inlet of the cyclone preheater I (4), the material outlet of the cyclone preheater I (4) is provided with a pipeline, and the other end of the pipeline is provided with the roasting furnace (6). The system is low in energy consumption and stable in quality.
Description
Technical field
The utility model relates to α-Al
2o
3production field, especially adopts predecomposition explained hereafter α-Al taking hydrogen aluminium as raw material
2o
3system.
Background technology
In recent years, China is by special-alumina α-Al
2o
3application, as an emphasis of Development of Hi-Tech industry, is increasing input aspect application foundation and industrialization.
At present, domestic and international special-alumina α-Al
2o
3production method mainly contains two kinds, and a kind of method is with hydrogen aluminium or γ-Al
2o
3for raw material, taking heavy oil as raw material, adopt small-sized calcined by rotary kiln method to produce; One is with hydrogen aluminium (or γ-Al
2o
3) be raw material, taking coal dust as raw material, adopt tunnel furnace, raw material is encapsulated into method for calcinating in alms bowl, yield poorly, quality stability is poor, energy consumption higher ((2500-3500) × 4.18kj/kg).These two kinds of methods are all difficult to ensure special-alumina α-Al
2o
3the stability of quality product and large-scale production, be difficult to realize production control automation.
Application number is that 94105290.7 patent document has been announced alpha-alumina powder and production method thereof, manufacturing process complexity, and cost is high, uses number of devices many, and processing parameter requires high, is not suitable for ordinary enterprises production and application.
In view of the foregoing, existing α-Al
2o
3the structure of production system needs to improve.
Utility model content
The purpose of this utility model is in order to overcome deficiency of the prior art, and a kind of predecomposition explained hereafter α-Al that adopts taking hydrogen aluminium as raw material is provided
2o
3system, adopt predecomposition explained hereafter special-alumina α-Al
2o
3, can accomplish scale production, energy consumption low (950 × 4.18kj/kg), steady quality, is convenient to realize production control automatic.
The utility model to achieve these goals, adopts following technical scheme: a kind of predecomposition explained hereafter α-Al that adopts taking hydrogen aluminium as raw material
2o
3system, be by feed system, venturi drier, cyclone preheater one, cyclone preheater two, cyclone preheater three, stoving oven, natural gas burner, kiln natural gas combustor, rotary kiln, cooler, dust-removal system forms, feed system one side arranges venturi drier, the material gas of venturi drier exports gentle entrance pipeline is respectively set, article two, the other end of pipeline arranges respectively cyclone preheater one and cyclone preheater two, the gas outlet of cyclone preheater one and the each pipeline that arranges of material outlet, the other end of cyclone preheater one gas outlet conduit arranges dust-removal system, between the material outlet of cyclone preheater one and the material gas entrance of cyclone preheater two, pipeline is set, the material outlet of cyclone preheater two arranges pipeline, the pipeline the other end arranges stoving oven, the material gas of stoving oven exports gentle entrance pipeline is respectively set, article two, the other end of pipeline arranges respectively cyclone preheater three and rotary kiln, between the head gas outlet of rotary kiln one side and roaster gas entrance, pipeline is set, between the gas outlet of cyclone preheater three and cyclone preheater two material gas entrances, pipeline is set, between the material outlet of cyclone preheater three and the material entrance of rotary kiln afterbody, pipeline is set, one side of rotary kiln arranges cooler, material circulation road and gas channel are set between rotary kiln and cooler.
Cooler is selected material gas divergence type cooler, in material gas divergence type cooler, material circulation road and gas channel is set, and the material in material circulation road and the air-flow in gas channel can carry out indirect heat exchange; Between rotary kiln and cooler, arrange that material circulation road and gas channel are corresponding with material circulation road in cooler and gas channel is respectively connected setting.
Feed system is made up of e Foerderanlage, measuring apparatus and feeder, and dust-removal system is made up of bag dust collector, blower fan and chimney.
Described rotary kiln one end arranges kiln natural gas combustor, and the bottom of stoving oven arranges natural gas burner.
Pipeline between equipment is utilidor, and the material circulation road between rotary kiln and cooler and gas channel are insulation passage.
The beneficial effects of the utility model are: taking hydrogen aluminium as raw material, Sweet natural gas is fuel, adopt predecomposition explained hereafter special-alumina α-Al
2o
3, transformation of crystal rate>=95%, can accomplish scale production, energy consumption low (950 × 4.18kj/kg), and steady quality, is convenient to realize production control automatic.
The utility model is divided into: feed system, preheating decomposition system, high-temperature calcination system, cooling heat-exchanging system.E Foerderanlage, measuring apparatus and feeder composition feed system; Cyclone preheater one, cyclone preheater two, cyclone preheater three, stoving oven and venturi drier composition precalcining system; Using ultrashort rotary kiln as α-Al
2o
3high-temperature calcination system, using expect gas divergence type cooler as cooling system to kiln discharge α-Al
2o
3carry out cooling and recovery of heat, a hot blast part for generation enters in kiln for kiln fuel combustion as secondary air, and a part for fuel combustion, is recycled fully waste heat in tertiary-air pipe enters decomposing furnace, and hear rate is burnt till in effective reduction.
The utility model is simply novel, and use equipment is few, and floor space is little, simple to operate, be conducive to reduce production costs, and the α-Al producing
2o
3quality is high, and production efficiency is high, and operating process is simple and convenient, has greatly simplified operating process, has shortened the production time, is conducive to the economic benefit of enterprise.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is, general assembly structural representation;
In Fig. 1: feed system 1, venturi drier 2, cyclone preheater 1, cyclone preheater 24, cyclone preheater 35, stoving oven 6, natural gas burner 7, natural gas combustor 8 for kiln, rotary kiln 9, cooler 10, dust-removal system 11.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
As shown in the figure, feed system 1 one sides arrange venturi drier 2, the material gas of venturi drier 2 exports gentle entrance pipeline is respectively set, article two, the other end of pipeline arranges respectively cyclone preheater 1 and cyclone preheater 24, the gas outlet of cyclone preheater 1 and the each pipeline that arranges of material outlet, the other end of cyclone preheater one 3 gas outlet conduits arranges dust-removal system 11, between the material outlet of cyclone preheater 1 and the material gas entrance of cyclone preheater 24, pipeline is set, the material outlet of cyclone preheater 24 arranges pipeline, the pipeline the other end arranges stoving oven 6, the material gas of stoving oven 6 exports gentle entrance pipeline is respectively set, article two, the other end of pipeline arranges respectively cyclone preheater 35 and rotary kiln 9, between the head gas outlet of rotary kiln 9 one sides and stoving oven 6 gas entrances, pipeline is set, between the gas outlet of cyclone preheater 35 and cyclone preheater 24 material gas entrances, pipeline is set, between the material outlet of cyclone preheater 35 and the material entrance of rotary kiln 9 afterbodys, pipeline is set, one side of rotary kiln 9 arranges cooler 10, material circulation road and gas channel are set between rotary kiln 9 and cooler 10.
Cooler 10 is selected material gas divergence type cooler, material gas divergence type cooler 10 interior material circulation road and the gas channels of arranging, and the material in material circulation road and the air-flow in gas channel can carry out indirect heat exchange; Between rotary kiln 9 and cooler 10, arrange that material circulation road and gas channel are corresponding with material circulation road in cooler 10 and gas channel is respectively connected setting.
Feed system 1 is made up of e Foerderanlage, measuring apparatus and feeder, and dust-removal system 11 is made up of bag dust collector, blower fan and chimney.
Described rotary kiln 9 one end arrange natural gas combustor 8 for kiln, and the bottom of stoving oven 6 arranges natural gas burner 7.
Pipeline between equipment is utilidor, and the material circulation road between rotary kiln 9 and cooler 10 and gas channel are insulation passage.
Claims (5)
1. adopt predecomposition explained hereafter α-Al taking hydrogen aluminium as raw material
2o
3system, by feed system (1), venturi drier (2), cyclone preheater one (3), cyclone preheater two (4), cyclone preheater three (5), stoving oven (6), natural gas burner (7), natural gas combustor for kiln (8), rotary kiln (9), cooler (10), dust-removal system (11) forms, it is characterized in that: feed system (1) one side arranges venturi drier (2), the material gas of venturi drier (2) exports gentle entrance pipeline is respectively set, article two, the other end of pipeline arranges respectively cyclone preheater one (3) and cyclone preheater two (4), the gas outlet of cyclone preheater one (3) and the each pipeline that arranges of material outlet, the other end of cyclone preheater one (3) gas outlet conduit arranges dust-removal system (11), between the material outlet of cyclone preheater one (3) and the material gas entrance of cyclone preheater two (4), pipeline is set, the material outlet of cyclone preheater two (4) arranges pipeline, the pipeline the other end arranges stoving oven (6), the material gas of stoving oven (6) exports gentle entrance pipeline is respectively set, article two, the other end of pipeline arranges respectively cyclone preheater three (5) and rotary kiln (9), between the head gas outlet of rotary kiln (9) one sides and stoving oven (6) gas entrance, pipeline is set, between the gas outlet of cyclone preheater three (5) and cyclone preheater two (4) material gas entrances, pipeline is set, between the material outlet of cyclone preheater three (5) and the material entrance of rotary kiln (9) afterbody, pipeline is set, one side of rotary kiln (9) arranges cooler (10), material circulation road and gas channel are set between rotary kiln (9) and cooler (10).
2. the predecomposition explained hereafter α-Al that adopts taking hydrogen aluminium as raw material according to claim 1
2o
3system, it is characterized in that: cooler (10) is selected material gas divergence type cooler, and material circulation road and gas channel are set in material gas divergence type cooler (10), and the material in material circulation road and the air-flow in gas channel can carry out indirect heat exchange; Between rotary kiln (9) and cooler (10), arrange that material circulation road and gas channel are corresponding with material circulation road in cooler (10) and gas channel is respectively connected setting.
3. the predecomposition explained hereafter α-Al that adopts taking hydrogen aluminium as raw material according to claim 1
2o
3system, it is characterized in that: feed system (1) is made up of e Foerderanlage, measuring apparatus and feeder; Dust-removal system (11) is made up of bag dust collector, blower fan and chimney.
4. the predecomposition explained hereafter α-Al that adopts taking hydrogen aluminium as raw material according to claim 1
2o
3system, it is characterized in that: described rotary kiln (9) one end arranges natural gas combustor for kiln (8), and the bottom of stoving oven (6) arranges natural gas burner (7).
5. the predecomposition explained hereafter α-Al that adopts taking hydrogen aluminium as raw material according to claim 1
2o
3system, it is characterized in that: the pipeline between equipment is utilidor, the material circulation road between rotary kiln (9) and cooler (10) and gas channel for insulation passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016725.5U CN203699937U (en) | 2014-01-10 | 2014-01-10 | System for producing alpha-Al2O3 by adopting predecomposition process by taking hydrogen and aluminum as raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016725.5U CN203699937U (en) | 2014-01-10 | 2014-01-10 | System for producing alpha-Al2O3 by adopting predecomposition process by taking hydrogen and aluminum as raw materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203699937U true CN203699937U (en) | 2014-07-09 |
Family
ID=51050404
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420016725.5U Expired - Lifetime CN203699937U (en) | 2014-01-10 | 2014-01-10 | System for producing alpha-Al2O3 by adopting predecomposition process by taking hydrogen and aluminum as raw materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203699937U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036168A (en) * | 2015-05-21 | 2015-11-11 | 山东鲁北企业集团总公司 | High-temperature-calcined [alpha]-Al2O3 production energy-saving apparatus and novel method |
| CN106542556A (en) * | 2016-11-03 | 2017-03-29 | 沈阳鑫博工业技术股份有限公司 | A kind of composite drying of aluminum oxide and calciner and method |
-
2014
- 2014-01-10 CN CN201420016725.5U patent/CN203699937U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036168A (en) * | 2015-05-21 | 2015-11-11 | 山东鲁北企业集团总公司 | High-temperature-calcined [alpha]-Al2O3 production energy-saving apparatus and novel method |
| CN105036168B (en) * | 2015-05-21 | 2017-01-25 | 山东鲁北企业集团总公司 | High-temperature-calcined [alpha]-Al2O3 production energy-saving apparatus and novel method |
| CN106542556A (en) * | 2016-11-03 | 2017-03-29 | 沈阳鑫博工业技术股份有限公司 | A kind of composite drying of aluminum oxide and calciner and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LUOYANG BUILDING MATERIAL AND ARCHITECTURAL DESIGN Free format text: FORMER NAME: LUOYANG CEMENT ENGINEERING DESIGN + RESEARCH INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 471000 Binhe Road, high tech Zone, Henan, Luoyang, China, 22 Patentee after: LUOYANG BUILDING MATERIALS & ARCHITECTURAL DESIGN AND RESEARCH INSTITUTE CO.,LTD. Address before: 471000 Binhe Road, high tech Zone, Henan, Luoyang, China, 22 Patentee before: LUOYANG CEMENT ENGINEERING DESIGN AND RESEARCH INSTITUTE Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
|
| CX01 | Expiry of patent term |