CN103467113A - Baking-free magnesian vibration material - Google Patents
Baking-free magnesian vibration material Download PDFInfo
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- CN103467113A CN103467113A CN2013103693375A CN201310369337A CN103467113A CN 103467113 A CN103467113 A CN 103467113A CN 2013103693375 A CN2013103693375 A CN 2013103693375A CN 201310369337 A CN201310369337 A CN 201310369337A CN 103467113 A CN103467113 A CN 103467113A
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- magnesia
- vibration material
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- composite binder
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Abstract
The invention discloses a baking-free magnesian vibration material which comprises the following components in percentage by weight: 93 to 96% of magnesia, 3 to 6% of composite type bonding agent, 0.2 to 0.8% of coagulant and 0.2 to 0.8% of polycarboxylate water reducing agent, wherein the composite type bonding agent is formed by anhydrous dextrose, borax, tropine and industrial salt; the particle size of the magnesia is more than 0 mm and less than or equal to 2 mm. The baking-free magnesian vibration material provided by the invention is single in the raw material, production processes are reduced, the costs about material backlogging, warehouse management and the like are reduced, since the baking procedure is omitted, the baking medium is saved, and the turnover utilization rate of a tundish is improved.
Description
Technical field
The present invention relates to exempt to toast vibration material.
Background technology
At present: liner in dundish is from material, be siliceous material mostly in the past, siliceous material belongs to acid refractory, has been not suitable with present alkalescence steel-making, so adopt now basic refractories more, take magnesian as main, classify from form of construction work, the forms such as heat-insulating shield, coating, spray material, dry-type working lining are arranged, use alkaline heat-insulating shield to be conducive to clean steel-making, and adiabatic good, but shortcoming is that work-ing life is lower, and during installation, labour intensity is larger; Coating and spray material are generally used at present, it is longer to have work-ing life, do not pollute the advantages such as molten steel, but it need add the moisture of 20% left and right when construction, thereby it is complicated to exist spraying or whipping device to safeguard, the deficiencies such as the work curing time is long, inhale hydrogen in order to reduce molten steel in addition, must toast online 1200 ℃ and be incubated more than 4 hours; The anti-erosion of dry materials, antiscour, long service life, construction be simple, do not add the water dry operation during due to construction, and the construction body easily produces partial collapse or loose, easily causes the construction quality accident; It is raw material that the wedding agent of dry materials generally adopts solid phenolic resin, and during Baking out, discharge toxic and harmful amount is large, and contaminate environment is unfavorable for the requirements such as clean steel-making and environmental protection, brings healthy hidden danger to the construction operation personnel simultaneously.
Summary of the invention
Technical problem to be solved by this invention just is to provide a kind of anti-erosion, antiscour, heat-shock resistance, exempts from baking, easy construction, long service life, resists the vibration material that the slag corrosion ability is strong, be easy to turn over the bag cleaning.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind ofly exempt to toast magnesia vibration material, raw material by following components by weight percent forms: magnesia 93～96%, composite binder 3～6%, setting accelerator 0.2～0.8%, polycarboxylate water reducer 0.2～0.8%, described composite binder is comprised of dextrose anhydrous, borax, tropine, Industrial Salt, and the particle diameter of described magnesia is greater than 0mm and is less than or equal to 2mm.
Preferably, in this vibration material, the weight percent of each component is: magnesia 94%, composite binder 5%, setting accelerator 0.5%, polycarboxylate water reducer 0.5%.
Preferably, in this vibration material, the weight percent of each component is: magnesia 96%, composite binder 3%, setting accelerator 0.8%, polycarboxylate water reducer 0.2%.
Preferably, in this vibration material, the weight percent of each component is: magnesia 95%, composite binder 4%, setting accelerator 0.6%, polycarboxylate water reducer 0.4%.
Preferably, the batching of described composite binder is by mass percentage: dextrose anhydrous: 86.35wt%; Borax: 4.55wt%; Tropine: 4.55wt%; Industrial Salt: 4.55wt%.
The present invention is owing to adopting technique scheme, thereby has the following advantages:
1, starting material are single, reduce production process, reduce overstocking of materials, warehousing management, etc. every cost:
The product starting material are single, do not exist because transportation, the minimum amount of stocking up etc. are former thereby carry out the various types of materials deposit, reduce raw materials inventory and overstock, and reach trucking costs cost, warehousing management cost, financial cost that stock produce;
2, exempt from baking, save the baking medium, improve tundish turnover utilization ratio:
Product when construction amount of water approximately 1.5～2%, the composite binder combination, the polycarboxylate water reducer has excellent water-reducing rate, mobility, perviousness, can obviously strengthen the intensity of construction body, reduces product moisture.Reasonably formula allows product really realize the short period of time combination, to have reduced, construct and within 1 hour, can exempt to toast demoulding and be delivered for use, omitted roasting procedure, saved baking medium cost, stopped to dry the package operation accident generation, reduced labor strength, improved the turnover utilization ratio of tundish, exempt to toast magnesia vibration material and be the type material that meets the efficient energy-saving and emission-reducing that country advocates;
3, environmental protection:
Exempt to toast that magnesia vibration material adopts is the composite binder combination that self-control coordinates, this wedding agent is a kind of nontoxic, tasteless, non-harmful white crystals particle or powder, has strong basicity; soluble in water; be insoluble to alcohol and acid, the aqueous solution is alkalescence, belongs to inorganic salt product.Can not produce toxic and harmful during not containing the composition that pollutes molten steel, heating, not have the factor that affects workman's occupational safety and health, environmentally safe;
4, reduce steel-making cost:
At first, exempt from baking: 280 yuan of/hour * 4=1120.00 units of saving medium, baking 4 hours * 2 people=80 of 10 yuan of/hour * of wage directly reduce costs 1200 yuan of/tundish; Adjust with the bag of merely hitting minimum consumption every day one, year save 43.2 ten thousand yuan;
Secondly, the economic benefit that raising equipment turnover rate brings is directly fallen this benefit considerably beyond product.Year economic benefit surpasses more than 1,000,000.
Embodiment
Exempting to toast magnesia vibration material is comprised of the raw material of following components by weight percent: magnesia 93～96%, composite binder 3～6%, setting accelerator 0.2～0.8%, polycarboxylate water reducer 0.2～0.8%, described composite binder is comprised of dextrose anhydrous, borax, tropine (urotropine), Industrial Salt, and the particle diameter of described magnesia is greater than 0mm and is less than or equal to 2mm.The batching of described composite binder is by mass percentage: dextrose anhydrous: 86.35wt%; Borax: 4.55wt%; Tropine: 4.55wt%; Industrial Salt: 4.55wt%.
Specific embodiment 1, in this vibration material, the weight percent of each component is: magnesia 94%, composite binder 5%, setting accelerator 0.5%, polycarboxylate water reducer 0.5%.
Specific embodiment 2, in this vibration material, the weight percent of each component is: magnesia 96%, composite binder 3%, setting accelerator 0.8%, polycarboxylate water reducer 0.2%.
Specific embodiment 3, in this vibration material, the weight percent of each component is: magnesia 95%, composite binder 4%, setting accelerator 0.6%, polycarboxylate water reducer 0.4%.
Above-mentionedly exempt to toast magnesia vibration material preparation method and comprise the following steps successively:
A) block magnesia is broken into to macrobead with jaw crusher;
B) with roller crusher, macrobead is ground into to the small-particle that particle diameter is 0～2mm;
C) small-particle is sieved by the particle diameter difference, the small-particle that particle diameter is 0～2mm is acceptable material;
D) get particle diameter non-zero～small-particle of 2mm steam again, with roller crusher, non-acceptable material pulverized;
E) small-particle is sieved by the particle diameter difference, the small-particle that particle diameter is 0～2mm is acceptable material;
F) repeating step d) and e), until all particle diameters are 0～2mm;
G) take batching and carry out the composite binder pre-mixing, batching is by mass percentage: dextrose anhydrous: 86.35wt%; Borax: 4.55wt%; Tropine: 4.55wt%; Industrial Salt: 4.55wt%; Pour above-mentioned batching into the forced stirrer stirring and carry out pre-mixing in 50～60 minutes, get 5wt% after pre-mixing and be delivered to mixing system;
H) take the 0.5wt% setting accelerator and be delivered to mixing system;
I) take 0.5wt%SN-II water reducer and be delivered to mixing system;
J) by the composite binder in step g), step h) in setting accelerator, step I) in water reducer carry out pre-mixing in mixing system, batch mixing 8～10 minutes;
K) by f) small-particle in step gets 94wt% and is filled in the Preblend system PBS tank, and batch mixing was delivered to mixing system after 6～8 minutes;
L) by step j) in premixed wedding agent, water reducer and setting accelerator and step k) in magnesia particle stir in mixing system after 8～10 minutes and carry out packing and obtain exempting to toast magnesia vibration material finished product.
Wherein said g) in step, churning time is 55 minutes; G) in step, mixing time is 9 minutes; K) in step, churning time is 7 minutes, and l) in the step, churning time is 9 minutes.
In foregoing description, in composite binder, each component is that part by weight is to occupy the weight percent of composite binder, and other are and occupy the weight percent of exempting to toast magnesia vibration material gross weight.
The technical performance index of product of the present invention is as follows:
1、MgO（%） ≥85
2、SiO
2（%） ≤5
3, volume density (g/cm3): room temperature 20 ℃ >=2.0
1500℃×3h ≥2.0
4, folding strength (MPa) room temperature 20 ℃ >=0.5
1500℃×3h ≥2.0
5, compressive strength (MPa) room temperature 20 ℃ >=2.0
1500℃×3h ≥8。
Claims (5)
1. exempt to toast magnesia vibration material for one kind, it is characterized in that being formed by the raw material of following components by weight percent: magnesia 93～96%, composite binder 3～6%, setting accelerator 0.2～0.8%, polycarboxylate water reducer 0.2～0.8%, described composite binder is comprised of dextrose anhydrous, borax, tropine, Industrial Salt, and the particle diameter of described magnesia is greater than 0mm and is less than or equal to 2mm.
2. according to claim 1ly exempt to toast magnesia vibration material, it is characterized in that: in this vibration material, the weight percent of each component is: magnesia 94%, composite binder 5%, setting accelerator 0.5%, polycarboxylate water reducer 0.5%.
3. according to claim 1ly exempt to toast magnesia vibration material, it is characterized in that: in this vibration material, the weight percent of each component is: magnesia 96%, composite binder 3%, setting accelerator 0.8%, polycarboxylate water reducer 0.2%.
4. according to claim 1ly exempt to toast magnesia vibration material, it is characterized in that: in this vibration material, the weight percent of each component is: magnesia 95%, composite binder 4%, setting accelerator 0.6%, polycarboxylate water reducer 0.4%.
5. according to claim 1ly exempt to toast magnesia vibration material, it is characterized in that: the batching of described composite binder is by mass percentage: dextrose anhydrous: 86.35wt%; Borax: 4.55wt%; Tropine: 4.55wt%; Industrial Salt: 4.55wt%.
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| CN201310369337.5A CN103467113B (en) | 2013-08-22 | 2013-08-22 | Baking-free magnesian vibration material |
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| CN201310369337.5A CN103467113B (en) | 2013-08-22 | 2013-08-22 | Baking-free magnesian vibration material |
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| CN103467113B CN103467113B (en) | 2014-08-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112174682A (en) * | 2020-10-10 | 2021-01-05 | 鞍钢股份有限公司 | Baking-free self-hardening tundish working lining repairing material and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219902A (en) * | 2007-11-16 | 2008-07-16 | 攀枝花顺腾集团冶金材料有限公司 | Environment-protection dry type vibrating material and production method thereof |
| CN101293779A (en) * | 2008-06-25 | 2008-10-29 | 河南省耕生耐火材料有限公司 | Environment-friendly pouring box drying type vibrating material wedding agent |
| CN101328071A (en) * | 2008-07-31 | 2008-12-24 | 武汉科技大学 | Magnesia-calcia dry type working liner for tundish and preparation thereof |
| CN101921119A (en) * | 2010-07-07 | 2010-12-22 | 德清县凯瑞新材料有限公司 | Environmental-friendly dry type vibrating material |
| CN102010215A (en) * | 2010-12-17 | 2011-04-13 | 武汉科技大学 | Tundish dry type vibration material taking waste magnesia carbon bricks as raw materials and preparation method thereof |
-
2013
- 2013-08-22 CN CN201310369337.5A patent/CN103467113B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219902A (en) * | 2007-11-16 | 2008-07-16 | 攀枝花顺腾集团冶金材料有限公司 | Environment-protection dry type vibrating material and production method thereof |
| CN101293779A (en) * | 2008-06-25 | 2008-10-29 | 河南省耕生耐火材料有限公司 | Environment-friendly pouring box drying type vibrating material wedding agent |
| CN101328071A (en) * | 2008-07-31 | 2008-12-24 | 武汉科技大学 | Magnesia-calcia dry type working liner for tundish and preparation thereof |
| CN101921119A (en) * | 2010-07-07 | 2010-12-22 | 德清县凯瑞新材料有限公司 | Environmental-friendly dry type vibrating material |
| CN102010215A (en) * | 2010-12-17 | 2011-04-13 | 武汉科技大学 | Tundish dry type vibration material taking waste magnesia carbon bricks as raw materials and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112174682A (en) * | 2020-10-10 | 2021-01-05 | 鞍钢股份有限公司 | Baking-free self-hardening tundish working lining repairing material and using method thereof |
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| CN103467113B (en) | 2014-08-20 |
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Address after: 313103, Huzhou, Zhejiang province Changxing County peace Town sand port village Zhejiang Sheng Metallurgical Materials Co., Ltd. Patentee after: Zhejiang Panxi Metallurgical Material Co., Ltd. Address before: 313103, Zhejiang, Changxing County, Huzhou province Wu Shan township sand port village Changxin Panzhihua Metallurgical Materials Co., Ltd. Patentee before: Changxing Panjiang Metallurgy Material Co., Ltd. |
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Application publication date: 20131225 Assignee: Panzhihua Shunteng Group Metallurgical Materials Co., Ltd. Assignor: Zhejiang Panxi Metallurgical Material Co., Ltd. Contract record no.: 2018510000030 Denomination of invention: Baking-free magnesian vibration material Granted publication date: 20140820 License type: Exclusive License Record date: 20180718 |
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