CN101333089A - Process for producing MgO-C Bricks by using waste MgO-C Bricks as main raw material - Google Patents
Process for producing MgO-C Bricks by using waste MgO-C Bricks as main raw material Download PDFInfo
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- CN101333089A CN101333089A CNA2008101409335A CN200810140933A CN101333089A CN 101333089 A CN101333089 A CN 101333089A CN A2008101409335 A CNA2008101409335 A CN A2008101409335A CN 200810140933 A CN200810140933 A CN 200810140933A CN 101333089 A CN101333089 A CN 101333089A
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- magnesia carbon
- carbon brick
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- magnesia
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses a method which uses waste magnesia-carbon bricks as main raw materials to produce magnesia-carbon bricks; the method uses and processes 62-98 portions of waste magnesia-carbon bricks as main raw materials, 0-47 portions of magnesia, and 0.2-15 portions of additives through the following steps: (1), selection and homogenization: classifying and sorting the reclaimed waste magnesia-carbon bricks, doping the bricks based on batches, so that the proportions of the reclaimed waste bricks with same material and different components can tend to balance; (2) crushing: breaking the homogenized waste magnesia-carbon bricks into granular materials and powder materials, with the diameter Phi below 12mm; (3) mixing: adding the crushed granular materials and powder materials of the waste magnesia-carbon bricks, the magnesia, as well as the additives sequentially into a mixer, and adding a right amount of bonding agent based on the total amount of the materials, then mixing all the components uniformly; (4) forming: pressing and forming the evenly mixed moist materials on a press, and drying the formed materials in a furnace, maintaining the dried materials for 12 hours at 110-250 DEG C so as to obtain the finished product.
Description
Technical field
The present invention relates to a kind of production method of magnesia carbon brick, especially relating to a kind of is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick.
Background technology
The refractory brick that magnesia carbon brick is used as the iron and steel kiln, develop rapidly along with China is steel, the annual magnesia carbon brick quantity that consumes has reached more than 1,800,000 tons, and the waste magnesia carbon brick of scrapping after using has 630,000 tons at least, these industrial refuses have not only taken a large amount of spaces, have also polluted environment.(name is called the patent of invention that my company declared on September 22nd, 2005: the regeneration method of waste magnesia carbon brick, the patent No. is: 200510018029.3) disclose a kind of will waste magnesia carbon brick through obtaining regeneration feed after the carbon removal treatment (graphite that is about to contain in the waste magnesia carbon brick is removed), this material can be respectively applied in the molded article and indefinite form goods of refractory materials, and the overall utilization that makes waste magnesia carbon brick is near 80%.Because graphite itself also is a kind of fine Nonrenewable resources, carbon removal treatment certainly will cause the waste of graphite resource, has also consumed the energy simultaneously, has polluted environment, has increased production cost.So how can preserve the effective constituent of former waste magnesia carbon brick to greatest extent and its regeneration is become the another technical barrier of industry.
Summary of the invention
The object of the present invention is to provide a kind of de-carbon that need not can waste magnesia carbon brick be the method that main raw material is produced magnesia carbon brick promptly.
For achieving the above object, the present invention can take following technical proposals:
Of the present invention is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick, and it is produced according to following weight parts proportioning and step with main raw material waste magnesia carbon brick and magnesia, additive:
Proportioning:
Waste magnesia carbon brick 62-98 part; Magnesia 0-47 part, granularity is below 12mm; Additive 0.2-15 part, granularity is below 0.5mm;
Step:
(1) selection and homogenizing: the waste magnesia carbon brick that reclaims is carried out classification, remove slag, earth or other impurity wherein after, mix according to about 120 tons batch and to turn over, make the various useless brick proportions of returning be tending towards equilibrium with the material heterogeneity;
(2) fragmentation: the waste magnesia carbon brick piece after the homogenizing is broken for particulate material and powder below the φ 12mm;
(3) batch mixing: the waste magnesia carbon brick particulate material after the fragmentation and powder and magnesia, additive are added in the stirrer successively, and (ratio between material and the wedding agent is 100: 2-6) stir to add an amount of wedding agent according to the total amount of material;
(4) moulding: the moistening material that will stir compression moulding fed to boiler on pressing machine is dried, and keeps getting product in 12 hours under 110--250 ℃ of temperature.
Use occasion and performance requriements difference according to magnesia carbon brick, additive can be metallic aluminium powder, metallic silicon power, metal magnesium powder, carborundum powder, boron carbide powder, magnesium aluminum-alloy powder, magnesium calcium alloy powder, synthetized oxidation preventive agent, αYang Hualv micro mist, lapis amiridis, electric smelting spinel powder, sintering spinel powder, hard pitch powder, resin-oatmeal, graphite, certainly, these additives can also can multiplely be used with a kind of.
According to smelting the environment difference, the magnesia of interpolation can be electrosmelted magnesite clinker, magnesite clinker, seawater magnesia, perhaps two or more being used, and granularity is chosen as below the 12mm.
Described wedding agent is a resin.
The weight part proportioning of described raw material is: 62 parts of waste magnesia carbon bricks, 47 parts in magnesia, 15 parts of additives.
The weight part proportioning of described raw material is: 80 parts of waste magnesia carbon bricks, 20 parts in magnesia, 6 parts of additives.
The weight part proportioning of described raw material is: 98 parts of waste magnesia carbon bricks, 2 parts in magnesia, 0.2 part of additive.
The weight part proportioning of described raw material is: 98 parts of waste magnesia carbon bricks, 10 parts of additives.
The invention has the advantages that with the waste magnesia carbon brick to be that main raw material is produced magnesia carbon brick, conventional physical and chemical index at the magnesia carbon brick that guarantees to produce reaches under the prerequisite of desired quality level, produce 1 ton of magnesia carbon brick 500-1500 unit that can reduce production costs, improved the market competitiveness of manufacturing enterprise, because a large amount of recyclings to waste magnesia carbon brick, remove the industrial refuse that steelworks retains for a long time, and made these enterprises also obtain income simultaneously, realized doulbe-sides' victory; Need not de-carbon when producing can directly come into operation the waste magnesia carbon brick particle, both reduced of the pollution of de-carbon link to environment, also reduced and produced the required quantity of graphite that adds in addition of magnesia carbon brick (during some products production even can accomplish not add in addition graphite), very important meaning has been arranged saving graphite resource.
Embodiment
Embodiment 1:
Of the present invention is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick, and it is with 62 parts of main raw material waste magnesia carbon bricks; 25 parts of electrosmelted magnesite clinkers, 22 parts of magnesite clinkers; 1 part in hard pitch powder (granularity is not more than 0.088mm), 5 parts of synthetized oxidation preventive agents (granularity is not more than 0.074mm), 2 parts of metallic silicon powers (granularity is not more than 0.074mm), graphite 7 parts (trade mark is-195) is produced according to following step:
(1) selection and homogenizing: the waste magnesia carbon brick that reclaims is carried out classification, remove slag, earth or other impurity wherein after, mix according to about 120 tons batch and to turn over, make useless brick proportion be tending towards balanced with the material heterogeneity;
(2) fragmentation: the waste magnesia carbon brick piece after the homogenizing is broken for particulate material and powder below the φ 10mm, and wherein the particulate material of φ 10-φ 3mm accounts for 36%, and the particulate material of φ 3-φ 0.074mm accounts for 40%, and the following powder of φ 0.074mm accounts for 24%;
(3) batch mixing: the waste magnesia carbon brick particulate material after the fragmentation and powder, electrosmelted magnesite clinker particle, magnesite clinker particle, hard pitch powder, synthetized oxidation preventive agent, metallic silicon power, graphite are added in the stirrer successively, and the resinoid bond that adds 2-6 part stirs;
(4) moulding: the material compression moulding fed to boiler on pressing machine that stirs is dried, under 110--250 ℃ of temperature, keep getting product in 12 hours.
Embodiment 2:
Of the present invention is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick, and it is with 80 parts of main raw material waste magnesia carbon bricks; 20 parts of magnesite clinkers; 2 parts in hard pitch powder (granularity is not more than 0.088mm), 2 parts of metallic silicon powers (granularity is not more than 0.074mm), graphite 2 parts (trade mark is-195) is produced according to following step:
(1) selection and homogenizing: the waste magnesia carbon brick that reclaims is carried out classification, remove slag, earth or other impurity wherein after, mix according to about 120 tons batch and to turn over, make useless brick proportion be tending towards balanced with the material heterogeneity;
(2) fragmentation: the waste magnesia carbon brick piece after the homogenizing is broken for particulate material and powder below the φ 10mm, and wherein the particulate material of φ 10-φ 3mm accounts for 47%, and the particulate material of φ 3-φ 0.074mm accounts for 24%, and the following powder of φ 0.074mm accounts for 29%;
(3) batch mixing: the waste magnesia carbon brick particulate material after the fragmentation and powder, magnesite clinker, hard pitch powder, metallic silicon power, graphite are added in the stirrer successively, and the resinoid bond that adds 2-6 part stirs;
(4) moulding: the material compression moulding fed to boiler on pressing machine that stirs is dried, under 110-250 ℃ of temperature, keep getting product in 12 hours.
Embodiment 3:
Of the present invention is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick, and it is with 98 parts of main raw material waste magnesia carbon bricks; 2 parts of seawater magnesias (granularity is not more than 1mm); Metal magnesium powder 0.2 part (granularity is not more than 0.074mm) is produced according to following step:
(1) selection and homogenizing: the waste magnesia carbon brick that reclaims is carried out classification, remove slag, earth or other impurity wherein after, mix according to about 120 tons batch and to turn over, make useless brick proportion be tending towards balanced with the material heterogeneity;
(2) fragmentation: the waste magnesia carbon brick piece after the homogenizing is broken for particulate material and powder below the φ 9mm, and wherein the particulate material of φ 9mm-φ 3mm accounts for 46%, and the particulate material of φ 3-φ 0.074mm accounts for 24%, and the following powder of φ 0.074mm accounts for 30%;
(3) batch mixing: the waste magnesia carbon brick particulate material after the fragmentation and powder, seawater magnesia, metal magnesium powder are added in the stirrer successively, and the resinoid bond that adds 2-6 part stirs;
(4) moulding: the material compression moulding fed to boiler on pressing machine that stirs is dried, under 110--250 ℃ of temperature, keep getting product in 12 hours.
Embodiment 4:
Of the present invention is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick, it is with 98 parts of main raw material waste magnesia carbon bricks and 0.5 part of metal magnesium powder (granularity is not more than 0.074mm), 1.5 parts in hard pitch powder (granularity is not more than 0.088mm), 4 parts of metallic aluminium powders (granularity is not more than 0.074mm), 2 parts of metallic silicon powers (granularity is not more than 0.074mm), electric smelting spinel powder 2 parts (granularity is not more than 0.045mm) is produced according to following step:
(1) selection and homogenizing: the waste magnesia carbon brick that reclaims is carried out classification, remove slag, earth or other impurity wherein after, mix in batches according to about 120 tons and to turn over, make useless brick proportion be tending towards balanced with the material heterogeneity;
(2) fragmentation: the waste magnesia carbon brick piece after the homogenizing is broken for particulate material and powder below the φ 10mm, and wherein the particulate material of φ 10mm-φ 3mm accounts for 46%, and the particulate material of φ 3-φ 0.074mm accounts for 24%, and the following powder of φ 0.074mm accounts for 30%;
(3) batch mixing: with the waste magnesia carbon brick particulate material after the fragmentation and powder, metal magnesium powder, the hard pitch powder, metallic aluminium powder, metallic silicon power, the electric smelting spinel powder adds in the stirrer successively, and the resinoid bond that adds 2-6 part stirs;
(4) moulding: the material compression moulding fed to boiler on pressing machine that stirs is dried, under 110--250 ℃ of temperature, keep getting product in 12 hours.
Claims (8)
1, a kind of is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick, it is characterized in that: it is to prepare according to following weight parts proportioning and step with raw material waste magnesia carbon brick, magnesia and additive:
Proportioning: waste magnesia carbon brick 62-98 part; Magnesia 0-47 part, granularity is below 12mm; Additive 0.2-15 part, granularity is below 0.5mm;
Step:
(1) selection and homogenizing: the waste magnesia carbon brick that reclaims is carried out classification, behind removing slag, earth or other impurity wherein, turn over, make waste magnesia carbon brick proportion be tending towards balanced with the material heterogeneity according to mixing in batches;
(2) fragmentation: the waste magnesia carbon brick after the homogenizing is broken for particulate material below the φ 12mm;
(3) batch mixing: the waste magnesia carbon brick particulate material after the fragmentation, magnesia, additive are added in the stirrer, and add an amount of wedding agent and stir;
(4) moulding: the material compression moulding fed to boiler on pressing machine that stirs is dried, under 110--250 ℃ of temperature, keep getting product in 12 hours.
2, according to claim 1 is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick, and it is characterized in that: described additive is metallic aluminium powder, metallic silicon power, metal magnesium powder, carborundum powder, boron carbide powder, magnesium aluminum-alloy powder, magnesium calcium alloy powder, synthetized oxidation preventive agent, αYang Hualv micro mist, lapis amiridis, electric smelting spinel powder, sintering spinel powder, hard pitch powder, resin-oatmeal, graphite.
3, according to claim 1 is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick, and it is characterized in that: described magnesia is electrosmelted magnesite clinker, magnesite clinker, seawater magnesia.
4, according to claim 1 is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick, and it is characterized in that: described wedding agent is a resin.
5, according to claim 1 is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick, and it is characterized in that: the weight part proportioning of described raw material is: 62 parts of waste magnesia carbon bricks, 47 parts in magnesia, 15 parts of additives.
6, according to claim 1 is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick, and it is characterized in that: the weight part proportioning of described raw material is: 80 parts of waste magnesia carbon bricks, 20 parts in magnesia, 6 parts of additives.
7, according to claim 1 is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick, and it is characterized in that: the weight part proportioning of described raw material is: 98 parts of waste magnesia carbon bricks, 2 parts in magnesia, 0.2 part of additive.
8, according to claim 1 is the method that main raw material is produced magnesia carbon brick with the waste magnesia carbon brick, and it is characterized in that: the weight part proportioning of described raw material is: 98 parts of waste magnesia carbon bricks, 10 parts of additives.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101409335A CN101333089A (en) | 2008-08-06 | 2008-08-06 | Process for producing MgO-C Bricks by using waste MgO-C Bricks as main raw material |
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| CNA2008101409335A CN101333089A (en) | 2008-08-06 | 2008-08-06 | Process for producing MgO-C Bricks by using waste MgO-C Bricks as main raw material |
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Cited By (27)
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| CN101880169A (en) * | 2010-05-26 | 2010-11-10 | 上海大学 | Comprehensive treatment method for recycling used MgO-C bricks from converter ladles |
| CN101962300A (en) * | 2010-08-25 | 2011-02-02 | 湖南湘钢宜兴耐火材料有限公司 | Regeneration method of steelmaking carbonic crushed brick |
| CN102010213A (en) * | 2010-11-10 | 2011-04-13 | 郑州振东耐磨材料有限公司 | Method for producing baking-free magnesia carbon brick |
| CN102336539A (en) * | 2011-09-02 | 2012-02-01 | 浙江铭德新材科技有限公司 | Waste utilization regeneration baking-free magnesia chrome brick and preparation method thereof |
| CN101781105B (en) * | 2009-01-20 | 2012-07-25 | 同济大学 | Anhydrous loam brick product repair agent |
| CN102898156A (en) * | 2012-09-13 | 2013-01-30 | 山西高科耐火材料股份有限公司 | Ladle slag line magnesia carbon brick and preparation method thereof |
| CN101851103B (en) * | 2009-04-03 | 2013-04-10 | 吴钦合 | Production method of environment-friendly and energy-saving type regenerative magnesia-carbon brick |
| CN103274708A (en) * | 2013-06-09 | 2013-09-04 | 山西太钢不锈钢股份有限公司 | Method for preparing refractory material by utilizing wasted magnesia carbon brick |
| CN103360085A (en) * | 2013-06-05 | 2013-10-23 | 池州灵芝化建材料科技有限公司 | Method for preparing metallurgical magnesium ball by using defective calcium-magnesium type fire-resisting brick product |
| CN103936445A (en) * | 2014-04-10 | 2014-07-23 | 长兴攀江冶金材料有限公司 | Large fabric for fettling of converter |
| CN104230208A (en) * | 2014-09-16 | 2014-12-24 | 武汉钢铁(集团)公司 | Acid-resisting corrosion-resistant carbon brick for nickel-copper smelting acid wastewater treatment and preparation method of acid-resisting corrosion-resistant carbon brick |
| CN104744053A (en) * | 2013-12-25 | 2015-07-01 | 营口东邦冶金设备耐材有限公司 | Anti-scouring tapping hole sleeve brick |
| CN105622070A (en) * | 2015-12-31 | 2016-06-01 | 海城市中兴高档镁质砖有限公司 | Magnesia-carbon brick prepared from residual magnesia-carbon bricks and preparation method of magnesia-carbon brick |
| CN106892647A (en) * | 2017-03-22 | 2017-06-27 | 辽宁中镁控股股份有限公司 | A kind of compound magnesia carbon brick and preparation method thereof |
| CN107244923A (en) * | 2016-11-30 | 2017-10-13 | 辽宁科技大学 | It is a kind of to increase the method for unfired magnesia-calcium brick medium temperature intensity |
| CN109879662A (en) * | 2019-04-25 | 2019-06-14 | 郑州振东科技有限公司 | The method for producing magnesia carbon brick or magnesia-alumina-carbon brick as main material using the small microparticle of waste magnesia carbon brick |
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| CN110028327A (en) * | 2019-04-25 | 2019-07-19 | 郑州振东科技有限公司 | Utilize the method for aluminium scrap magnesia carbon brick metamorphic layer production quality refractory raw material and aluminium-magnesia carbon brick |
| CN110342952A (en) * | 2019-08-28 | 2019-10-18 | 云南濮耐昆钢高温材料有限公司 | A kind of regenerative magnesia-carbon brick and preparation method thereof produced with waste magnesia carbon brick |
| CN111348896A (en) * | 2018-12-24 | 2020-06-30 | 新疆八一钢铁股份有限公司 | Working layer for forming refractory lining of continuous casting tundish |
| CN111807850A (en) * | 2020-07-21 | 2020-10-23 | 郑州长虹耐火材料有限公司 | Baking-free low-energy-consumption regenerated ladle brick and preparation method thereof |
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|---|---|---|---|---|
| CN101781105B (en) * | 2009-01-20 | 2012-07-25 | 同济大学 | Anhydrous loam brick product repair agent |
| CN101851103B (en) * | 2009-04-03 | 2013-04-10 | 吴钦合 | Production method of environment-friendly and energy-saving type regenerative magnesia-carbon brick |
| CN101880169A (en) * | 2010-05-26 | 2010-11-10 | 上海大学 | Comprehensive treatment method for recycling used MgO-C bricks from converter ladles |
| CN101962300A (en) * | 2010-08-25 | 2011-02-02 | 湖南湘钢宜兴耐火材料有限公司 | Regeneration method of steelmaking carbonic crushed brick |
| CN102010213A (en) * | 2010-11-10 | 2011-04-13 | 郑州振东耐磨材料有限公司 | Method for producing baking-free magnesia carbon brick |
| CN102336539A (en) * | 2011-09-02 | 2012-02-01 | 浙江铭德新材科技有限公司 | Waste utilization regeneration baking-free magnesia chrome brick and preparation method thereof |
| CN102898156A (en) * | 2012-09-13 | 2013-01-30 | 山西高科耐火材料股份有限公司 | Ladle slag line magnesia carbon brick and preparation method thereof |
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| CN105622070A (en) * | 2015-12-31 | 2016-06-01 | 海城市中兴高档镁质砖有限公司 | Magnesia-carbon brick prepared from residual magnesia-carbon bricks and preparation method of magnesia-carbon brick |
| CN105622070B (en) * | 2015-12-31 | 2018-11-09 | 海城利尔麦格西塔材料有限公司 | A kind of magnesia carbon brick and preparation method thereof produced using the residual brick of magnesium carbon |
| CN107244923A (en) * | 2016-11-30 | 2017-10-13 | 辽宁科技大学 | It is a kind of to increase the method for unfired magnesia-calcium brick medium temperature intensity |
| CN106892647A (en) * | 2017-03-22 | 2017-06-27 | 辽宁中镁控股股份有限公司 | A kind of compound magnesia carbon brick and preparation method thereof |
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