CN101870562B - Method for recycling waste sand in precision casting - Google Patents
Method for recycling waste sand in precision casting Download PDFInfo
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- CN101870562B CN101870562B CN2010102137208A CN201010213720A CN101870562B CN 101870562 B CN101870562 B CN 101870562B CN 2010102137208 A CN2010102137208 A CN 2010102137208A CN 201010213720 A CN201010213720 A CN 201010213720A CN 101870562 B CN101870562 B CN 101870562B
- Authority
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- Prior art keywords
- sand
- precision casting
- waste sand
- powder
- subsequent use
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004576 sand Substances 0.000 title claims abstract description 40
- 239000002699 waste material Substances 0.000 title claims abstract description 35
- 238000005495 investment casting Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004064 recycling Methods 0.000 title abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 9
- 229910052845 zircon Inorganic materials 0.000 claims abstract description 8
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims abstract description 8
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 5
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 5
- 238000012216 screening Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims abstract description 3
- 238000005266 casting Methods 0.000 claims description 16
- 239000011819 refractory material Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 101710194948 Protein phosphatase PhpP Proteins 0.000 claims description 3
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- -1 Mo Laisha Chemical compound 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 238000007885 magnetic separation Methods 0.000 claims description 2
- 238000005554 pickling Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 239000003469 silicate cement Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 2
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000007767 bonding agent Substances 0.000 abstract 1
- 239000002910 solid waste Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000011456 concrete brick Substances 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000011863 silicon-based powder Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a waste recycling technology, in particular to a method for recycling precision casting waste sand, which comprises mullite, mullite sand, zircon and zircon sand, wherein the precision casting waste sand is prepared into aggregate and powder of refractory castable through cleaning, drying, crushing and screening, and then is added with bonding agent and additive to be mixed and homogenized to prepare refractory castable, thus solving the problem that the existing waste precision casting sand pollutes the environment.
Description
Technical field
The present invention relates to the waste reutilization technology, relate in particular to a kind of precision casting waste sand and utilize method again.
Background technology
According to statistics, 1 ton of qualified foundry goods of the every production of China produces 1.3～1.5 tons of antiquated sands, and national annual cast waste sand quantity discharged is all more than ten million ton.Present processing mode is arbitrarily to stack or landfill, contaminate environment not only, but also caused the significant wastage of resource.Nineteen ninety-five, country has put into effect the People's Republic of China's prevention and control of environmental pollution by solid wastes method (revise in December, 2004 for the first time), encourages, supports scientific research, the technological development of prevention and control of environmental pollution by solid wastes.Requirement is taked anti-flying, Anti-lost, antiseep to various refuses, and perhaps other prevent the measure of contaminate environment; Must not topple over, stack, abandon, drop solid waste without authorization.Wherein, the processing of cast waste sand has become an instant task, and each big colleges and universities, scientific research institutions and enterprise are all at the treatment technology of seeking cast waste sand, but DeGrain.
The Central China University of Science and Technology as main raw material, prepared the non-burning brick of National standard with cast waste sand, solved the difficult problem of cast waste sand land occupation, contaminate environment for DongFeng Automobile Co., Ltd; New big vast steel casting ltd has applied for the patent (CN101033120A) of " prescription of producing concrete brick from foundry waste sand and working method "; This disclosure of the Invention a kind of solid useless with cast waste sand, slag and flyash etc. be that main raw material prepares concrete brick, and design a kind of technical process that can produce the concrete brick of National standard JC239-2001.But above patent all is the recycling to quartzy cast waste sand and water glass cast waste sand, for the precision casting industry with mullite, not come sand and zircon, zircon sand be that the precision casting waste sand recycling of staple does not then have relevant report.
Summary of the invention
In order to overcome above-mentioned defective, the technical problem that the present invention will solve is: to existing depleted precision casting waste sand problem of environment pollution caused, provide a kind of precision casting waste sand to utilize method again.
In order to overcome the defective that exists in the background technology; The technical solution adopted for the present invention to solve the technical problems is: a kind of precision casting waste sand utilizes method again; Contain mullite, Mo Laisha, zircon and zircon sand in the precision casting waste sand; Precision casting waste sand is mixed with the aggregate and the powder of refractory material casting material through cleaning, drying, pulverizing and screening; Add wedding agent again and admixture is mixedly made into refractory material casting material; The mass mixing ratio example of aggregate, powder, wedding agent and admixture is 30～40: 40～50: 10～15: 0.2, and described wedding agent is at least a of pure calcium aluminate cement, silicate cement, beta crystal aluminium sesquioxide, silicon sol or water glass, described admixture is at least a of sodium lignosulfonate, tripoly phosphate sodium STPP, Zusoplast 9002 or Sodium hexametaphosphate 99.
Precision casting waste sand of the present invention utilizes method again, and concrete preparation method is following:
A. with precision casting waste sand through washing, be dried to moisture and be not higher than 1% subsequent use;
B. the subsequent use antiquated sand with step a passes through the jaw crushing crusher machine, and powder adopts magnetic separation, the deironing of pickling mode;
C. the subsequent use raw material of step b being sieved grain composition puts in storage respectively;
D. the subsequent use raw material with step c is mixed with the aggregate and the powder of refractory material casting material according to the certain granules level, and adds wedding agent and admixture mixing and carry out homogenizing.
Beneficial effect: through suitable treatment process, the precision casting waste sand resource utilization is used, turned waste into wealth, prepare the lower refractory material casting material of production cost.Fundamentally solved precision casting waste sand stacking, problem of environmental pollution that landfill brought, made its economic environmental protection burden become the profit point that enterprise Green is made, promoted the circulation low-carbon economyization of casting industry from original casting industry.In addition, be main raw material owing to adopt solid waste, reduced the consumption of refractory materials production to natural mineral, practiced thrift the Mineral resources of China, promoted the sound development of refractories industry.
Embodiment
Below several instances be that the present invention combines to use the detailed description of carrying out, but protection scope of the present invention is not limited in this.
Embodiment one
After washing, drying, through the jaw crushing crusher machine, screening is subsequent use after the deironing with precision casting waste sand.Prepare burden according to the grain composition shown in the table 1 then, and add silicon powder, pure calcium aluminate cement and tripoly phosphate sodium STPP, mix at last, homogenizing, obtain qualified refractory material casting material.
Table 1
Get this instance refractory material casting material, add 6% tap water uniform mixing, process the refractory material casting material test block through plain bumper, and natural curing at room temperature, testing its correlated performance then, the result is as shown in table 2.
Table 2
Embodiment two
After washing, drying, through the jaw crushing crusher machine, screening is subsequent use after the deironing with precision casting waste sand.Prepare burden according to the grain composition shown in the table 3 then, and add silicon powder, pure calcium aluminate cement and sodium lignosulfonate (F10).Mix at last, homogenizing, obtain qualified refractory material casting material.
Table 3
Get the tap water uniform mixing of this instance refractory material casting material adding 7%, process the refractory material casting material test block through plain bumper, and natural curing at room temperature, testing its correlated performance then, the result is as shown in table 4.
Table 4
Claims (2)
1. a precision casting waste sand utilizes method again; Contain mullite, Mo Laisha, zircon and zircon sand in the precision casting waste sand; It is characterized in that: precision casting waste sand is mixed with the aggregate and the powder of refractory material casting material through cleaning, drying, pulverizing and screening; Add wedding agent again and admixture is mixedly made into refractory material casting material; The mass mixing ratio example of aggregate, powder, wedding agent and admixture is 30～40: 40～50: 10～15: 0.2; Described wedding agent is at least a of pure calcium aluminate cement, silicate cement, beta crystal aluminium sesquioxide, silicon sol or water glass, and described admixture is at least a of sodium lignosulfonate, tripoly phosphate sodium STPP, Zusoplast 9002 or Sodium hexametaphosphate 99.
2. precision casting waste sand as claimed in claim 1 utilizes method again, it is characterized in that: concrete preparation method is following:
A. with precision casting waste sand through washing, be dried to moisture and be not higher than 1% subsequent use;
B. the subsequent use antiquated sand with step a passes through the jaw crushing crusher machine, and powder adopts magnetic separation, the deironing of pickling mode;
C. the subsequent use raw material of step b being sieved grain composition puts in storage respectively;
D. the subsequent use raw material with step c is mixed with the aggregate and the powder of refractory material casting material according to the certain granules level, and adds wedding agent and admixture mixing and carry out homogenizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102137208A CN101870562B (en) | 2010-06-30 | 2010-06-30 | Method for recycling waste sand in precision casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102137208A CN101870562B (en) | 2010-06-30 | 2010-06-30 | Method for recycling waste sand in precision casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101870562A CN101870562A (en) | 2010-10-27 |
| CN101870562B true CN101870562B (en) | 2012-05-02 |
Family
ID=42995669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102137208A Active CN101870562B (en) | 2010-06-30 | 2010-06-30 | Method for recycling waste sand in precision casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101870562B (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219247A (en) * | 2011-04-08 | 2011-10-19 | 南江 | Reutilization method for waste sand |
| CN102259109B (en) * | 2011-05-30 | 2013-07-17 | 西安华领控制技术有限公司 | Titanium and titanium alloy remnant waste material processing apparatus system and titanium material sorting method |
| CN102633512B (en) * | 2012-04-12 | 2013-06-19 | 武汉科技大学 | Abandoned molding sand based mullite light heat insulating bricks and preparation method thereof |
| CN102773406B (en) * | 2012-07-26 | 2015-05-27 | 汉川市石金科技有限公司 | Refractory aggregate of casting coating recycled from old shell powder through investment casting |
| CN103771884B (en) * | 2014-01-07 | 2017-12-12 | 山东耀华特耐科技有限公司 | Silicate discarded object is lightweight wear-resistant castable refractory of raw material and preparation method thereof |
| CN104261810B (en) * | 2014-10-08 | 2016-03-30 | 武汉科技大学 | A kind of containing zirconium mullite composite diphase material and preparation method thereof |
| CN105436394A (en) * | 2015-11-25 | 2016-03-30 | 铜陵市经纬流体科技有限公司 | Heat-resisting and high-breathability composite modified water glass sand used for pump valve casting and manufacturing method of heat-resisting and high-breathability composite modified water glass sand |
| CN105777148B (en) * | 2016-01-30 | 2018-07-24 | 武汉科技大学 | Coil daub for medium-frequency induction furnace and preparation method thereof |
| CN106001399A (en) * | 2016-05-26 | 2016-10-12 | 合肥市田源精铸有限公司 | Regeneration treatment method for sodium silicate waste sand |
| CN106365651B (en) * | 2016-08-26 | 2018-11-30 | 山东金璞新材料有限公司 | The preparation method of spherical aggregate enhancing refractory material |
| TR201710403A2 (en) * | 2017-07-14 | 2017-11-21 | Bahtli Tuba | WAX CASTING MOLD FROM WASTE SAND CHAMBER REFRACTORY BRICK (LOW ALUMINATED ALUMINATED SILICATE BRICK) |
| CN108046581B (en) * | 2018-01-04 | 2018-10-02 | 杭州萧山长城铝业物资有限公司 | A kind of nice foundry sand periphery solid waste material dry process technique |
| CN109020518A (en) * | 2018-08-23 | 2018-12-18 | 安徽瑞泰新材料科技有限公司 | Quick service castable and preparation method thereof is split in a kind of antiknock |
| CN110156481A (en) * | 2019-04-08 | 2019-08-23 | 启东市聚旺铸造有限公司 | Refractory material prepared by using investment casting waste sand and preparation method of refractory material |
| CN110918873A (en) * | 2019-11-20 | 2020-03-27 | 江门市汇坤科技有限公司 | Casting waste sand recovery system and method |
| CN111423242B (en) * | 2020-04-22 | 2022-09-02 | 河南省宏达炉业有限公司 | Anti-stripping high-thermal-shock-resistance castable |
| CN113061043A (en) * | 2021-04-12 | 2021-07-02 | 马鞍山市绿科环保科技有限公司 | Light refractory aggregate prepared from casting waste sand and preparation process thereof |
| CN116727600B (en) * | 2023-06-16 | 2024-01-26 | 广东万嘉精铸材料有限公司 | Precision casting surface sand powder and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078451A (en) * | 1993-05-18 | 1993-11-17 | 辽宁工学院 | Utilize ferro-alloy cinder to produce the method for fire resistive material product |
| CN1203207A (en) * | 1997-06-25 | 1998-12-30 | 西安市华秦工业窑炉公司 | High-strength fireproof pour material |
| CN1251357A (en) * | 1999-09-16 | 2000-04-26 | 梁庆华 | Concrete brick produced by utilizing foundry of waste sand |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11302065A (en) * | 1998-04-22 | 1999-11-02 | Fujita Corp | Inorganic composite and its molding |
-
2010
- 2010-06-30 CN CN2010102137208A patent/CN101870562B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078451A (en) * | 1993-05-18 | 1993-11-17 | 辽宁工学院 | Utilize ferro-alloy cinder to produce the method for fire resistive material product |
| CN1203207A (en) * | 1997-06-25 | 1998-12-30 | 西安市华秦工业窑炉公司 | High-strength fireproof pour material |
| CN1251357A (en) * | 1999-09-16 | 2000-04-26 | 梁庆华 | Concrete brick produced by utilizing foundry of waste sand |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-302065A 1999.11.02 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101870562A (en) | 2010-10-27 |
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