CN101870562B - Precision casting waste sand reusing method - Google Patents
Precision casting waste sand reusing method 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
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- waste sand
- precision casting
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- casting waste
- powder
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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 relates to the waste reusing technology, in particular to a precision casting waste sand reusing method. The precision casting waste sand contains mullite, mullite sand, zirconite and zircon sand. The precision casting waste sand is cleaned, dried, crushed and screened to form aggregate and powder for a fireproof casting material; and a bonding agent and an admixture are added into the aggregate and the powder, and the components are mixed and homogenized to form the fireproof casting material. The method solves the problem that the conventional precision casting waste 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 | Precision casting waste sand reusing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102137208A CN101870562B (en) | 2010-06-30 | 2010-06-30 | Precision casting waste sand reusing method |
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| Publication Number | Publication Date |
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| CN101870562A CN101870562A (en) | 2010-10-27 |
| CN101870562B true CN101870562B (en) | 2012-05-02 |
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| CN2010102137208A Active CN101870562B (en) | 2010-06-30 | 2010-06-30 | Precision casting waste sand reusing method |
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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 | Utilize the refractory material of model casting antiquated sand preparation and the 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 |
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|---|---|---|---|---|
| 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 |
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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 |
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| JP特开平11-302065A 1999.11.02 |
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| CN101870562A (en) | 2010-10-27 |
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