CN108455970A - A kind of technique using the double-deck sintering spray gun shaft furnace production highly-purity magnesite - Google Patents
A kind of technique using the double-deck sintering spray gun shaft furnace production highly-purity magnesite Download PDFInfo
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- CN108455970A CN108455970A CN201810553944.XA CN201810553944A CN108455970A CN 108455970 A CN108455970 A CN 108455970A CN 201810553944 A CN201810553944 A CN 201810553944A CN 108455970 A CN108455970 A CN 108455970A
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- spray gun
- highly
- purity magnesite
- ball
- shaft furnace
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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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
- C04B35/043—Refractories from grain sized mixtures
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of techniques producing highly-purity magnesite using the double-deck sintering spray gun shaft furnace, are related to highly-purity magnesite preparing technical field, concrete technology is：The light-burning magnesium powder that granularity is 150 200mm is subjected to levigate processing first, it is ground using ball mill, it can terminate to grind when 95% light-burning magnesium powder fineness of materials is less than 325 mesh, then ball press is used to carry out pressure ball, health drying is carried out after pressure ball, then the magnesium ball after drying is entered into kiln, by shaft furnace preheating temperature to 800 1000 DEG C, open the calcination of first layer spray gun, 1,200 1500 DEG C of burning zone temperature, first layer spray gun opens the calcining of second layer spray gun after being calcined, 1,800 2000 DEG C of burning zone temperature, finally 150 200 DEG C are cooled to by cooling zone, highly-purity magnesite can be made into using furnace discharge conveyer kiln discharge.Spray gun structure is sintered using bilayer, elongates sintering time, reaches the highly-purity magnesite purpose of production Gao Timi.
Description
Technical field
The present invention relates to a kind of techniques producing highly-purity magnesite using the double-deck sintering spray gun shaft furnace, specially highly-purity magnesite system
Standby technical field.
Background technology
China be in the world magnesite resource compared with one of the country of horn of plenty.Magnesite is that Liaoning Province is advantageous important
One of mineral resources, reserves, yield occupy first place in the world, wherein based on Haicheng City and In Dashiqiao Area, local magnesite mineral products money
Source is abundant, and Haicheng, Dashiqiao, Xiuyan-band proved reserves are 2,500,000,000 tons, account for 85% or more of national gross reserves, account for the world
The 1/5 of gross reserves is verified, first of the worlds mineral reserves Liang Ju.
In magnesia refractories product, highly-purity magnesite is as high-end magnesia refractories, in occupation of absolute market position.
So the product of Gao Timi is increasingly by industry personage's extensive concern.
Previous highly-purity magnesite shaft furnace uses one layer of sintering spray gun, and close product body is 3.28 grams/cc, this kiln can
Realize close 3.40 grams/cc of body.
Existing highly-purity magnesite shaft furnace uses one layer of sintering spray gun, and sintering time is short, so product body is close low, thus produces
Series of products refractoriness it is low, of poor quality.
Invention content
The purpose of the present invention is to provide a kind of techniques producing highly-purity magnesite using the double-deck sintering spray gun shaft furnace.
To achieve the above object, the present invention provides the following technical solutions：It is a kind of high using the double-deck sintering spray gun shaft furnace production
The technique of pure magnesia：The light-burning magnesium powder that granularity is 150-200mm is subjected to levigate processing first, is ground using ball mill,
It can terminate to grind when 95% light-burning magnesium powder fineness of materials is less than 325 mesh, then ball press be used to carry out pressure ball, pressure ball knot
Health drying is carried out after beam, the magnesium ball after drying is then entered into kiln, by shaft furnace preheating temperature to 800-1000 DEG C, opens first layer
Spray gun is calcined, 1200-1500 DEG C of burning zone temperature, and first layer spray gun opens the calcining of second layer spray gun, clinkering zone after being calcined
1800-2000 DEG C of temperature is finally cooled to 150-200 DEG C by cooling zone, can be made into highly-purity magnesite using furnace discharge conveyer kiln discharge.
Preferably, the spray gun is natural gas spraying gun or shale oil spray gun.
Compared with prior art, beneficial effects of the present invention are as follows：Spray gun structure is sintered using bilayer, when elongating sintering
Between, reach the highly-purity magnesite purpose of production Gao Timi, product body is close up to 3.40 grams/cc.
Specific implementation mode
It is clearly and completely retouched below in conjunction with technical solution in the embodiment of the present invention in the embodiment of the present invention
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment 1
A kind of technique using the double-deck sintering spray gun shaft furnace production highly-purity magnesite：By granularity be 200mm light-burning magnesium powder first into
Processing that row is levigate, is ground using ball mill, can terminate to grind when 95% light-burning magnesium powder fineness of materials is less than 325 mesh,
Then it uses ball press to carry out pressure ball, carries out health drying after pressure ball, the magnesium ball after drying is then entered into kiln, by shaft furnace temperature
Degree is preheated to 1000 DEG C, opens the calcination of first layer spray gun, 1500 DEG C of burning zone temperature, and first layer spray gun opens the after being calcined
Two layers of spray gun calcining, 2000 DEG C of burning zone temperature are finally cooled to 200 DEG C by cooling zone, can be made using furnace discharge conveyer kiln discharge
At highly-purity magnesite, wherein spray gun selects natural gas spraying gun, and it is 3.40 grams that the high purity magnesium sand body that after testing prepared by embodiment 1 is close/it is vertical
Square centimetre.
Embodiment 2
A kind of technique using the double-deck sintering spray gun shaft furnace production highly-purity magnesite：By granularity be 180mm light-burning magnesium powder first into
Processing that row is levigate, is ground using ball mill, can terminate to grind when 95% light-burning magnesium powder fineness of materials is less than 325 mesh,
Then it uses ball press to carry out pressure ball, carries out health drying after pressure ball, the magnesium ball after drying is then entered into kiln, by shaft furnace temperature
Degree is preheated to 900 DEG C, opens the calcination of first layer spray gun, 1300 DEG C of burning zone temperature, and first layer spray gun opens the after being calcined
Two layers of spray gun calcining, 180000 DEG C of burning zone temperature are finally cooled to 180 DEG C, using furnace discharge conveyer kiln discharge by cooling zone
Highly-purity magnesite is made, spray gun is shale oil spray gun.Close 3.38 grams/cc of the high purity magnesium sand body that after testing prepared by embodiment 2.
Embodiment 3
A kind of technique using the double-deck sintering spray gun shaft furnace production highly-purity magnesite：By granularity be 150mm light-burning magnesium powder first into
Processing that row is levigate, is ground using ball mill, can terminate to grind when 95% light-burning magnesium powder fineness of materials is less than 325 mesh,
Then it uses ball press to carry out pressure ball, carries out health drying after pressure ball, the magnesium ball after drying is then entered into kiln, by shaft furnace temperature
Degree is preheated to 800 DEG C, opens the calcination of first layer spray gun, 1200 DEG C of burning zone temperature, and first layer spray gun opens the after being calcined
Two layers of spray gun calcining, 1800 DEG C of burning zone temperature are finally cooled to 150 DEG C by cooling zone, can be made using furnace discharge conveyer kiln discharge
At highly-purity magnesite, the spray gun is natural gas spraying gun, close 3.35 gram/cube of high purity magnesium sand body that after testing prepared by embodiment 2
Centimetre.Therefore embodiment 1 is optimum embodiment.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (2)
1. a kind of technique using the double-deck sintering spray gun shaft furnace production highly-purity magnesite, it is characterised in that：Concrete technology is：By granularity
Levigate processing is carried out first for the light-burning magnesium powder of 150-200mm, is ground using ball mill, waits for 95% light-burning magnesium powder material
Fineness can terminate to grind when being less than 325 mesh, then use ball press to carry out pressure ball, carry out health drying after pressure ball, so
The magnesium ball after drying is entered into kiln afterwards, by shaft furnace preheating temperature to 800-1000 DEG C, opens the calcination of first layer spray gun, burning zone temperature
1200-1500 DEG C, first layer spray gun is opened second layer spray gun after being calcined and is calcined, 1800-2000 DEG C of burning zone temperature, finally
It is cooled to 150-200 DEG C by cooling zone, highly-purity magnesite can be made into using furnace discharge conveyer kiln discharge.
2. a kind of technique using the double-deck sintering spray gun shaft furnace production highly-purity magnesite according to claim 1, feature exist
In：The spray gun is natural gas spraying gun or shale oil spray gun.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810553944.XA CN108455970A (en) | 2018-06-01 | 2018-06-01 | A kind of technique using the double-deck sintering spray gun shaft furnace production highly-purity magnesite |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810553944.XA CN108455970A (en) | 2018-06-01 | 2018-06-01 | A kind of technique using the double-deck sintering spray gun shaft furnace production highly-purity magnesite |
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| CN108455970A true CN108455970A (en) | 2018-08-28 |
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| CN201810553944.XA Pending CN108455970A (en) | 2018-06-01 | 2018-06-01 | A kind of technique using the double-deck sintering spray gun shaft furnace production highly-purity magnesite |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109206024A (en) * | 2018-11-30 | 2019-01-15 | 嘉晨集团有限公司 | A kind of preparation method producing highly-purity magnesite using low-grade magnesite as raw material |
| CN111003952A (en) * | 2020-02-10 | 2020-04-14 | 营口金岱国际科技有限公司 | Oxygen-enriched combustion method of high-purity magnesia shaft kiln |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150131A (en) * | 1996-09-05 | 1997-05-21 | 辽宁镁矿耐火材料公司 | Method for producing high-purity dense macrocrystalline sintered magnesia |
| CN1286231A (en) * | 1999-08-30 | 2001-03-07 | 杨庆广 | High-purity magnesite with volume density higher than 3.40 g/cu.cm prepared from magnesite and its preparing process |
| CN101475323A (en) * | 2007-12-31 | 2009-07-08 | 大连核心铸造技术工程研究所 | Preparation method of high purity magnesia |
| CN101607792A (en) * | 2009-07-18 | 2009-12-23 | 杨庆广 | The magnesium hydroxide technology for calcining high-purity magnesia that adopts the Qinghai Bischofite in Salt lake to transform |
-
2018
- 2018-06-01 CN CN201810553944.XA patent/CN108455970A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150131A (en) * | 1996-09-05 | 1997-05-21 | 辽宁镁矿耐火材料公司 | Method for producing high-purity dense macrocrystalline sintered magnesia |
| CN1286231A (en) * | 1999-08-30 | 2001-03-07 | 杨庆广 | High-purity magnesite with volume density higher than 3.40 g/cu.cm prepared from magnesite and its preparing process |
| CN101475323A (en) * | 2007-12-31 | 2009-07-08 | 大连核心铸造技术工程研究所 | Preparation method of high purity magnesia |
| CN101607792A (en) * | 2009-07-18 | 2009-12-23 | 杨庆广 | The magnesium hydroxide technology for calcining high-purity magnesia that adopts the Qinghai Bischofite in Salt lake to transform |
Non-Patent Citations (3)
| Title |
|---|
| 张兴业: "我国超高温竖窑及其生产现状", 《工业炉》 * |
| 王兆中: "浅谈海水镁砂的研制与发展", 《海湖盐与化工》 * |
| 郭海珠等: "《实用耐火原料手册》", 30 September 2000, 北京：中国建材出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109206024A (en) * | 2018-11-30 | 2019-01-15 | 嘉晨集团有限公司 | A kind of preparation method producing highly-purity magnesite using low-grade magnesite as raw material |
| CN111003952A (en) * | 2020-02-10 | 2020-04-14 | 营口金岱国际科技有限公司 | Oxygen-enriched combustion method of high-purity magnesia shaft kiln |
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Effective date of registration: 20200115 Address after: 115100 Huzhuang Zhen Er Cun, Dashiqiao City, Yingkou City, Liaoning Province Applicant after: Yingkou Jindai International Technology Co., Ltd Address before: 115100 Dashiqiao City, Yingkou, Liaoning Applicant before: Jia Chen Group Co., Ltd. |
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Application publication date: 20180828 |