CN106007416B - Light calcined magnesia roasting kiln suspension roasting device - Google Patents
Light calcined magnesia roasting kiln suspension roasting device Download PDFInfo
- Publication number
- CN106007416B CN106007416B CN201610643705.4A CN201610643705A CN106007416B CN 106007416 B CN106007416 B CN 106007416B CN 201610643705 A CN201610643705 A CN 201610643705A CN 106007416 B CN106007416 B CN 106007416B
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- CN
- China
- Prior art keywords
- gas
- kiln body
- kiln
- calcined magnesia
- light calcined
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
- C04B2/12—Preheating, burning calcining or cooling in shaft or vertical furnaces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention discloses a kind of this light calcined magnesia roasting kiln suspension roasting device, including kiln body, the bottom of kiln body is provided with gas material inlet pipe, the top of kiln body is provided with gas material outlet pipe, fuel inlet is offered in the side wall of kiln body, fuel inlet is communicated in the fuel nozzle laid in kiln body, is provided with mineral powder of magnesite and air preheater before gas material inlet pipe, Conveyance device is provided with after gas material outlet pipe.The present invention changes existing light calcined magnesia and is calcined reflecting kiln lump material solid and gas contrary to the shortcomings that movement, reacted product enters Conveyance device after being removed with the gas material outlet pipe together with waste gas by top, and material is in suspended state, is ramped up together with hot gas, it is swift in response, sintering is uniform, and Product Activity is high, and quality is good, realize extensive, continuous, the quick production of light calcined magnesia, apparatus structure is simple and convenient to operate, controlled flexibly, and sintering is uniform, and Product Activity is high, quality is good.
Description
Technical field
The present invention relates to light calcined magnesia roasting kiln technical field.
Background technology
Magnesite belongs to national grand strategy resource.China's magnesite ore reserves accounts for the 24% of world saving, occupies world head
Position.Although China is magnesite resource and magnesian big producer, but due to blindness exploitation for many years, high-grade magnesite
Stone is increasingly deficient, and light calcined magnesia production remains in the original extensive mode of production, and manufacturing enterprise is simply equipped, and lacks technology
Standard, thermal regulation and operational procedure, main manual operation by rule of thumb, labor intensity is big, and environmental pollution is serious, and product quality is not
Stable, added value of product is low, and resource cannot comprehensively utilize.The problem of China's magnesite industry is present basic reason is technology and dress
Standby backwardness, have become the technical bottleneck for restricting the development of China's light calcined magnesia.
China's light calcined magnesia producing equipment lags far behind developed country, also far behind domestic aluminum oxide, cement
Deng other inorganic product industries.China's light calcined magnesia production technology is original, continues to use traditional reflecting kiln production always.It is this anti-
It is small to penetrate kiln body, yields poorly, annual production is no more than 20,000 tons；Open production, energy consumption is big, and pollution is very serious；Lump material,
Solid and gas contrary toasts material, decomposition reaction velocity is slow, and raw outer burnt in product, surface overbaking loses to movement by hot gas
Activity, not thoroughly without activity, Product Activity is low, of poor quality for inside roasting；Automaticity is low, and production is original, grasps by rule of thumb
Make, labor intensity is big.
The content of the invention
Technical problem solved by the invention is to overcome lump material solid and gas contrary of the prior art to movement, decompose instead
Answer speed is slow, in product active low quality difference weak point, and provide a kind of light calcined magnesia roasting kiln suspension roasting dress
Put,
The technical solution adopted by the present invention is light calcined magnesia roasting kiln suspension roasting device, including kiln body, kiln body
Bottom is provided with gas material inlet pipe, and the top of kiln body is provided with gas material outlet pipe, and fuel inlet is offered in the side wall of kiln body, and fuel inlet connects
The fuel nozzle laid in kiln body is passed through, mineral powder of magnesite and air preheater is provided with before gas material inlet pipe, is set after gas material outlet pipe
There is Conveyance device.
Fuel nozzle is evenly arranged in the same plane in kiln body.
The invention has the advantages that changing existing light calcined magnesia is calcined reflecting kiln lump material solid and gas contrary to movement
The shortcomings that, reacted product enters Conveyance device after being removed with the gas material outlet pipe together with waste gas by top, and material is in
Suspended state, with hot gas with ramping up, it is swift in response, sintering is uniform, and Product Activity is high, and quality is good, realizes light calcined magnesia
Extensive, continuous, quick production, apparatus structure is simple and convenient to operate, controls flexibly, and sintering is uniform, and Product Activity is high, matter
Measure.
Brief description of the drawings
Fig. 1 is light calcined magnesia roasting kiln suspension roasting schematic device.
In figure mark for：1- kiln bodies, 2- gas material inlet pipes, 3- fuel nozzles, 31- fuel inlets, 4- gas material outlet pipes, 41- gas
Material separating device, 5- gas material.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
The light calcined magnesia roasting kiln suspension roasting device of the present invention, including kiln body 1, the kiln, 1 bottom are provided with gas
Expect inlet pipe 2, the top of kiln body 1 is provided with gas material outlet pipe 4, offers fuel inlet 31 in the side wall of kiln body, fuel inlet 31 connects
Mineral powder of magnesite and air preheater 21 are provided with before the fuel nozzle 3 laid in kiln body, gas material inlet pipe 2, after gas material outlet pipe 4
Provided with Conveyance device 41.
The mineral powder of magnesite and air of preheating enter kiln from the gas material inlet pipe 2 of bottom, and mineral powder of magnesite is in ascending air
Driving under in suspended state and with ramping up, the fuel such as coal gas or heavy oil is ejected into kiln by fuel nozzle 3, and in air
Oxygen combustion reaction produces heat, keeps in kiln mineral powder of magnesite to decompose the temperature of reaction, and mineral powder of magnesite was rising
Decomposed in journey reaction, reacted product enters product gas material after being removed with the gas material outlet pipe 4 together with waste gas by top
Separator 41.In whole process, material is in suspended state, with hot gas with ramping up, is swift in response, and sintering is uniform, and product is lived
Property it is high, quality is good, realizes extensive, continuous, the quick production of light calcined magnesia, and apparatus structure is simple and convenient to operate, controlled
Flexibly, sintering is uniform, and Product Activity is high, quality is good.Realize extensive, continuous, the quick production of light calcined magnesia, device knot
Structure is simple and convenient to operate, controlled flexibly, and sintering is uniform, and Product Activity is high, quality is good, has following features：
Invention is further described with reference to embodiment.Accompanying drawing 1 is embodiment schematic diagram, in the present embodiment, gas material
Inlet pipe 2 is located at the lower sidewall of kiln body 1, and gas material outlet pipe 4 is located at the top of kiln body 1, and the mineral powder of magnesite and air of preheating are from bottom
Into kiln, mineral powder of magnesite is in suspended state under the driving of ascending air, and with hot gas with ramping up, coal gas or heavy oil etc. fire
Material is ejected into kiln by fuel nozzle 3, produces heat with the oxygen combustion reaction in air, mineral powder of magnesite is in uphill process
Decompose reaction, reacted product enters Conveyance device after being removed with the gas material outlet 4 together with waste gas by top.
The present embodiment kiln produces 300000 tons of light calcined magnesia per year, while has advantages below：
1. raw material is powdered giobertite, granularity 60-120 mesh, granularity is small, and roasting time is short, and roasting is uniform, and product is lived
Property high quality is good；
2. material is in suspended state, material moves in the same direction with hot gas solid and gas two-phase, is evenly distributed, is swift in response, during stop
Between it is short, kiln body is small, greatly reduces equipment investment and energy consumption；
3. closing produces, waste gas is in an organized way transported to processing unit, greatly reduces pollutant emission；
4. apparatus structure is simple and convenient to operate；
5. control is flexible, it is easy to automatically control.
Claims (2)
1. light calcined magnesia roasting kiln suspension roasting device, including kiln body (1), it is characterised in that：The bottom of the kiln body (1)
Provided with gas material inlet pipe (2), the top of kiln body (1) is provided with gas material outlet pipe (4), and fuel inlet (31) is offered in the side wall of kiln body,
Fuel inlet (31) is communicated in the fuel nozzle (3) laid in kiln body, is provided with mineral powder of magnesite before gas material inlet pipe (2) and air is pre-
Thermal (21), gas material outlet pipe (4) are provided with Conveyance device (41) afterwards.
2. light calcined magnesia roasting kiln suspension roasting device as claimed in claim 1, it is characterised in that：Fuel nozzle (3)
In same plane in kiln body (1), and it is evenly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610643705.4A CN106007416B (en) | 2016-08-08 | 2016-08-08 | Light calcined magnesia roasting kiln suspension roasting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610643705.4A CN106007416B (en) | 2016-08-08 | 2016-08-08 | Light calcined magnesia roasting kiln suspension roasting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106007416A CN106007416A (en) | 2016-10-12 |
| CN106007416B true CN106007416B (en) | 2017-12-29 |
Family
ID=57134984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610643705.4A Active CN106007416B (en) | 2016-08-08 | 2016-08-08 | Light calcined magnesia roasting kiln suspension roasting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106007416B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018369B (en) * | 2019-12-11 | 2021-10-15 | 东北大学 | Magnesite suspension decomposing furnace |
| CN111792855B (en) * | 2020-08-20 | 2024-01-30 | 辽宁博仕科技股份有限公司 | Straight barrel type light-burned magnesia suspension roasting device |
| CN113149468B (en) * | 2021-02-26 | 2024-02-06 | 辽宁荣邦科技有限公司 | Kiln and kiln system for preparing light burned magnesia powder by flash reflection |
| CN115367777A (en) * | 2022-10-02 | 2022-11-22 | 吕文广 | Preparation method of battery-grade lithium carbonate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201027172Y (en) * | 2007-04-19 | 2008-02-27 | 王元生 | Magnesium carbonate suspending sorting kiln |
| CN103435277A (en) * | 2013-08-23 | 2013-12-11 | 北京科太亚洲生态科技有限公司 | Internal gas burning shaft kiln and method for producing light burned magnesia |
| CN206069711U (en) * | 2016-08-08 | 2017-04-05 | 辽宁信威环保科技有限公司 | Light calcined magnesia roasting kiln suspension roasting device |
-
2016
- 2016-08-08 CN CN201610643705.4A patent/CN106007416B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201027172Y (en) * | 2007-04-19 | 2008-02-27 | 王元生 | Magnesium carbonate suspending sorting kiln |
| CN103435277A (en) * | 2013-08-23 | 2013-12-11 | 北京科太亚洲生态科技有限公司 | Internal gas burning shaft kiln and method for producing light burned magnesia |
| CN206069711U (en) * | 2016-08-08 | 2017-04-05 | 辽宁信威环保科技有限公司 | Light calcined magnesia roasting kiln suspension roasting device |
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| Publication number | Publication date |
|---|---|
| CN106007416A (en) | 2016-10-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qu Dianli Inventor after: Shi Shuwei Inventor after: Guo Yuxiang Inventor after: Yin Geyi Inventor after: Sang Hong Inventor after: Sun Wenjing Inventor after: Cai Youjuan Inventor after: Chen Fuli Inventor after: Gang Zhanku Inventor before: Chen Fuli Inventor before: Gang Zhanku Inventor before: Shi Shuwei |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180409 Address after: 114051 No. 185 Qianshan Middle Road, hi tech Zone, Liaoning, Anshan Co-patentee after: Liaoning Xinwei Environmental Protection Technology Co. Ltd. Patentee after: Liaoning Science and Technology Univ. Co-patentee after: Liaoning Fenghua Industrial Co., Ltd. Co-patentee after: Dashiqiao Xinwei Refractory Material Co.,Ltd. Address before: 115105, Yingkou, Liaoning province Dashiqiao City Tuen Mun Town, Tong Village Patentee before: Liaoning Xinwei Environmental Protection Technology Co. Ltd. |