CN1413949A - Fusing of natural tabular spar and its using method - Google Patents
Fusing of natural tabular spar and its using method Download PDFInfo
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- CN1413949A CN1413949A CN01141396A CN01141396A CN1413949A CN 1413949 A CN1413949 A CN 1413949A CN 01141396 A CN01141396 A CN 01141396A CN 01141396 A CN01141396 A CN 01141396A CN 1413949 A CN1413949 A CN 1413949A
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- wollastonite
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- natural
- cao
- melting method
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Processing Of Solid Wastes (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A fused wollastonite is prepared from natural wollastonite through adding less silica, calcite and fluorite, pulverizing, stirring, calcining at 1000-1600 deg.C, cooling, pulverizing and sieving. It can be used as the external refining agent for metallurgical furnace, protecting slag of conticasting and point of welding electrode.
Description
Technical field
The present invention relates to the deep processing of non-metallic material, is a kind of natural wollastonite heating and melting to be made the method for molten silicon lime stone, and product is mainly used in industries such as metallurgical and welding electrode.The continuous casting covering slag of scouring agent and pouring molten steel outside metallurgy industry can be used as the stove of purification of molten steel; In the welding electrode industry, can be used as coating of welding electrode.
Background technology
Natural wollastonite heating and melting being prepared the method for molten silicon lime stone, all belong to the initiative technology at home and abroad, is the new technology by contriver's research, exploitation.At present, except that the product that the technology of the present invention is produced, the wollastonite of other industrial raw material synthetic of a small amount of usefulness is still arranged on the market, and aspects such as the technology of the present invention workinprocess cost, output capacity and fusion effect has special advantages than the synthetic technology.
Summary of the invention
Wollastonite is a kind of nonmetallic minerals that extensively is present in occurring in nature, owing to be subjected to the restriction mutually of its place of production, structure and thing, chemical ingredients instability, physicals also have very big variation, can not satisfy metallurgy and wait some industry higher requirement.The present invention is a base-material with the natural wollastonite of certain component, according to the composition requirement of variant production, after other auxiliary materials mix, heating and melting together, variation has all taken place in its chemical ingredients and physical properties on request, and chemical constitution has reached the ideal value of design, and character is more stable; The change of thing phase makes the use properties of product that the essence variation take place, and has improved and improved the comprehensive result of use of product.
Product with natural wollastonite fused method makes can be widely used in industries such as smelting iron and steel and welding electrode manufacturing.As the outer concise synthetic slag of stove, it can play the effect of impurity such as good dephosphorization, desulfurization, removal aluminium sesquioxide, and reduces environmental pollution, is a kind of novel, outer concise material of fine stove; As the continuous casting covering slag base-material, it has that composition is uniform and stable, melting properties is desirable and all irreplaceable advantage of any raw material such as the slagging state is good, thereby continuous casting covering slag is reached fully prevents secondary oxidation, purify hot metal, lubricated crystallizer wall, evenly cool off, prevent effect such as billet surface crackle; As the base-material of coating of welding electrode, it has stable components and good slagging performance, can improve the quality of welding electrode, reaches the ideal welding effect.
Though existing synthetic wollastonite product also can partly be used for smelting iron and steel and welding electrode manufacturing, but compare with the molten silicon lime stone that natural wollastonite fusion makes, have shortcomings such as product cost height, output capacity are low, fusion weak effect, the application of product is restricted.The technology of the present invention has enlarged the application channel for the wollastonite mineral products; For using industry, increased the source and the selection of raw material, improved the performance of raw material and product.No matter use, not only have tangible economic benefit, and have extensive and potential social benefit for producing still.
Embodiment
The present invention is base-material according to the requirement of purpose product to its moiety with natural wollastonite, suitably adds a small amount of other auxiliary materials and carries out heating and melting.Composition of raw materials is:
Material name component concentration % weight percent
Base-material: natural wollastonite CaSiO
3〉=70 50-100
Auxiliary material: silica (quartz) SiO
2〉=95 0-30
Wingdale or calcite CaO 〉=50 0-30
Fluorite CaF
2〉=80 0-20
Bauxitic clay Al
2O
3〉=80 0-10
According to above prescription, available metallurgical shaft furnace, converter, electric arc furnace or tank furnace are heating energy source with coke (or coal), electricity, combustion gas (comprising coal gas, liquefied gas and Sweet natural gas), carry out the fusion of natural wollastonite.Its specific practice is: raw material powder is broken into particle or powder below 100 millimeters; so that it fully contacts; conduct heat rapidly; proportion of composing by various products calculates required corresponding raw material consumption; after the raw material of metering mixes, add in the stove; be heated to 1000-1600 ℃ and fuse, after the carbonate in the raw material, moisture carry out decarbonation, dehydration reaction, carry out sufficient chemical combination.The molten materials that is fired into is accurate vitreous state, and the type of cooling has two kinds: the one, and water quenching is about to molten mass and bursts into granule or fritter with cold water, pulls oven dry then from water out; Another kind method is a naturally cooling or air-cooled.Cooled product gets finished product through pulverizing, sieving.
Having following typical case through the natural wollastonite of the fusion of above-mentioned prescription and explained hereafter forms:
Weight percentages of components
SiO
2 35-65
CaO 25-55
F
- 0-10
Al
2O
3 0-10
The melting method of natural wollastonite is developed, is produced from studying to, and the inventor has experienced the history in nearly ten years, and product has been found a good sale in the world market several years ago.Production practice in the past few years show: the production formula advanced person of setting, and selected manufacturing process is reasonable, has reached its intended purposes, constant product quality, result of use is good.
Below with example this law is further described.
The employing metallurgical shaft furnace is produced.
Example 1: target product main ingredient standard is: SiO
250-55% CaO 44-49%
Selected natural wollastonite composition is SiO
250.02%, CaO 46.73%.Wollastonite is become the particle of 10-60 millimeter and 50-100 millimeter with the coke separated pulverizing, light metallurgical shaft furnace after, add bed coke, treat the bed coke burning, coke and material layering are added, burnt material is than being 1: 3.5.Along with the thawing of material, quantitatively add burnt material, make it to remain on the ideal height.Torrid zone kiln temperature control is at 1350-1600 ℃.The material that melts flows out from discharge port, after shrend, airing (or oven dry), screening, receive product.
Through check, the product main component is: SiO
251.5% CaO 44.5%.The standard-required that meets target product fully.
This production technique also can be according to different demands, without shrend, effusive molten materials behind naturally cooling, broken (or abrasive dust), receive product.
Example 2: target product main component standard is: SiO
259-63% CaO 35-58% F
-2.5-3.5%.
Preparation raw material granularity 10-60 millimeter.Get 570 parts of natural wollastonites, quartzy 330 parts, 100 parts in fluorite mixes.Get 330 parts in coke,, promptly get product as example 1 described processing method production.
Product is through check, and main component is: SiO
259.82% CaO, 37.76% F
-3.16%, product meets the standard-required of target product fully.
Example 3: target product main component standard is: SiO
242-45% CaO 47-49% Al
2O
33-4% F
-3.5-4.5%.
Preparation raw material granularity 10-60 millimeter.Get 880 parts of natural wollastonites, 100 parts in fluorite, 20 parts of bauxitic clays mix.Get 330 parts in coke,, promptly get product as example 1 described processing method production.
Through check, the product main component is: SiO
243.76% CaO, 48.44% Al
2O
33.31% F
-3.86%, product meets the standard-required of target product fully.
This patent product also comprises as required to be produced with electric arc furnace.
Example 4: target product main component standard is: SiO
250-55% CaO 44-49%.
The natural wollastonite granularity of preparation raw material 0-100 millimeter adds in the electric arc furnace.Open electric arc furnace, after temperature is increased to 1000 ℃ gradually in the stove, begin to occur sintering, and begin to melt along with temperature raises, its core temperature remains on 1450-1550 ℃, along with the thawing of material progressively adds raw material, makes it to remain on the height near the body of heater edge.After material melts fully, when slag to be melted reach a certain height, emit and melt slag.Product is through shrend, and cool solarization the (or oven dry) sieved and promptly got product.
Product is through check, and main component is: SiO
252.13% CaO 46.31% meets the standard-required of target product.
Use electric arc furnace production, also can be according to different demands, without shrend, receive natural refrigerative product.After promptly treating the full stove of fused material, withdraw from electrode.Behind the naturally cooling, remove body of heater, receive product.
Example 5: target product main component standard is: SiO
248-51% CaO 39-41%Al
2O
35-6% F
-1.5-2.5%.
Preparation raw material granularity 0-50 millimeter.Press natural wollastonite: bauxitic clay: fluorite=mixed was even in 84: 9: 5, and the processing method production as example 4 promptly gets product.
Product is through check, and main component is: SiO
250.31% CaO, 40.53% Al
2O
35.74%F
-1.98%, product meets the standard-required of target product fully.
This patent product also comprises and adopts converter production as required.
Example 6: target product main component standard is: SiO
259-63% CaO 35-38% F
-2.5-3.5%.
Preparation raw material granularity 0-2 millimeter.By natural wollastonite: quartz: the mixed of fluorite=57: 33: 10 is even, treat that converter is heated to 1000 ℃ after, add the material that mixes according to the body of heater volume, close the door, start converter, the combustion fire heats up.Burn after material all melts evenly to the kiln, cease fire, blowing, shrend, airing (or oven dry), screening, receive product.
Product is through check, and main component is: SiO
260.02% CaO, 35.89% F
-2.96%, product meets the standard-required of target product fully.
Use converter process production, also can be according to different requirements, fused product is without shrend, naturally cooling behind the kiln discharge, receive product.
Example 7: target product main component standard is: SiO
252-54% CaO 41-43%.
Preparation raw material granularity 0-2 millimeter.Press wollastonite I: wollastonite II=45: 55 mixed is even, and the processing method production as example 6 promptly gets product.
Product is through check, and main component is: SiO
253.45% CaO 42.37%, product meets the standard-required of target product fully.
This patent product also comprises and adopts tank furnace production as required.
Example 8: target product main component standard is: SiO
242-45% CaO 47-49% Al
2O
33-4% F
-3.5-4.5%.
The preparation raw material granularity is less than 100 orders, by natural wollastonite: fluorite: the mixed of bauxitic clay=88: 10: 2 is even, tank furnace is heated to 1450 ℃ after, feed intake, make the kiln temperature remain on the ideal temperature that material melts.Material flows out naturally from hydrophthalmia after the fusion, falls into the shrend of kiln sink, collects, and airing (or oven dry) promptly gets product.
Through check, main component is: SiO
242.56% CaO, 47.93% Al
2O
33.76% F
-3.82%, product meets the standard-required of target product fully.
Produce product with tank furnace, also can be according to different requirements, molten materials is without shrend, and behind the kiln discharge, naturally cooling promptly gets product.
Example 9: target product main component standard is: SiO
259-63% CaO 35-38% CaF
22.5-3.5%.
The preparation raw material granularity is less than 60 orders, by natural wollastonite: quartz: the mixed of fluorite=75: 13: 12 is even, and the processing method production of pressing example 9 promptly gets product.
Through check, main component is: Si0
249.75% CaO, 38.56% CaF
26.31%, product meets the standard-required of target product fully.
Claims (5)
1. the melting method of a wollastonite is characterized by natural wollastonite heating is made the molten silicon lime stone.Its production technique is: with natural wollastonite is base-material, can add a small amount of auxiliary material in proportion by the composition composition requirement of product, separated pulverizing becomes particle diameter at the particle below 6 centimetres, adds behind the mixing in the stove, be heated to 1000-1600 ℃ and fire, form through cooling, pulverizing, screening.
2. as the melting method of right 1 described wollastonite, it is characterized by the molten silicon lime stone that makes and contain following component:
Weight percentages of components
SiO
2 35-65
CaO 25-55
F
- 0-10
Al
2O
3 0-10
3. the melting method of wollastonite as claimed in claim 1 is characterized by raw materials used weight percent and is:
Material name component concentration % usage percentage
Base-material: natural wollastonite CaSiO
3〉=70 50-100
Auxiliary material: silica (quartz) SiO
2〉=95 0-30
Wingdale or calcite CaO 〉=50 0-30
Fluorite CaF
2〉=80 0-20
Bauxitic clay Al
2O
3〉=80 0-10
4. the melting method of wollastonite as claimed in claim 1 is characterized by described stove and is that metallurgical shaft furnace, electric arc are jealous of, converter and tank furnace.
5. the melting method of wollastonite as claimed in claim 1 is characterized by the outer scouring agent of stove that the molten silicon lime stone that makes is used for purification of molten steel, the continuous casting covering slag and the coating of welding electrode of pouring molten steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011413964A CN1199912C (en) | 2001-10-25 | 2001-10-25 | Fusing of natural tabular spar and its using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011413964A CN1199912C (en) | 2001-10-25 | 2001-10-25 | Fusing of natural tabular spar and its using method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1413949A true CN1413949A (en) | 2003-04-30 |
| CN1199912C CN1199912C (en) | 2005-05-04 |
Family
ID=4676137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011413964A Expired - Fee Related CN1199912C (en) | 2001-10-25 | 2001-10-25 | Fusing of natural tabular spar and its using method |
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|---|---|
| CN (1) | CN1199912C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325407C (en) * | 2005-01-16 | 2007-07-11 | 张延大 | Synthesis of wollastonite fibre and method for preparing same |
| CN103421930A (en) * | 2012-05-17 | 2013-12-04 | 张延大 | Novel tire cord steel refined material formula and preparation method thereof |
| CN107245550A (en) * | 2017-08-15 | 2017-10-13 | 大连环球矿产股份有限公司 | A kind of floride-free low titanium molten steel scavenger（Refine material）Preparation method |
| CN108570533A (en) * | 2018-05-17 | 2018-09-25 | 山东钢铁股份有限公司 | A kind of deoxidation slag charge suitable for Si killed steel |
| CN108927502A (en) * | 2018-06-28 | 2018-12-04 | 卓然(靖江)设备制造有限公司 | A kind of centrifugal casting low melting point covering slag |
-
2001
- 2001-10-25 CN CNB011413964A patent/CN1199912C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325407C (en) * | 2005-01-16 | 2007-07-11 | 张延大 | Synthesis of wollastonite fibre and method for preparing same |
| CN103421930A (en) * | 2012-05-17 | 2013-12-04 | 张延大 | Novel tire cord steel refined material formula and preparation method thereof |
| CN103421930B (en) * | 2012-05-17 | 2016-01-20 | 张延大 | A kind of cord steel refining material and preparation method thereof |
| CN107245550A (en) * | 2017-08-15 | 2017-10-13 | 大连环球矿产股份有限公司 | A kind of floride-free low titanium molten steel scavenger（Refine material）Preparation method |
| CN108570533A (en) * | 2018-05-17 | 2018-09-25 | 山东钢铁股份有限公司 | A kind of deoxidation slag charge suitable for Si killed steel |
| CN108570533B (en) * | 2018-05-17 | 2019-11-15 | 山东钢铁股份有限公司 | A kind of deoxidation slag charge suitable for Si killed steel |
| CN108927502A (en) * | 2018-06-28 | 2018-12-04 | 卓然(靖江)设备制造有限公司 | A kind of centrifugal casting low melting point covering slag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1199912C (en) | 2005-05-04 |
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Owner name: DALIAN HUANQIU MINERALS CO., LTD. Free format text: FORMER OWNER: ZHANG MENGXIAN Effective date: 20150127 Free format text: FORMER OWNER: MEN ZHAOYAN Effective date: 20150127 |
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Free format text: CORRECT: ADDRESS; FROM: 116600 DALIAN, LIAONING PROVINCE TO: 116110 DALIAN, LIAONING PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150127 Address after: 116110, Dalian, Liaoning province Jinzhou District, Wei Town, even Feng Village Patentee after: Dalian global mineral Limited by Share Ltd Address before: 116600 building, commercial building, Dalian Development Zone, Liaoning, 3 Patentee before: Zhang Mengxian Patentee before: Men Zhaoyan |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050504 Termination date: 20171025 |
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| CF01 | Termination of patent right due to non-payment of annual fee |