CN103396046A - Baking-free brick made of lead-zinc mineral tailings, and production method thereof - Google Patents
Baking-free brick made of lead-zinc mineral tailings, and production method thereof Download PDFInfo
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- CN103396046A CN103396046A CN2013103310062A CN201310331006A CN103396046A CN 103396046 A CN103396046 A CN 103396046A CN 2013103310062 A CN2013103310062 A CN 2013103310062A CN 201310331006 A CN201310331006 A CN 201310331006A CN 103396046 A CN103396046 A CN 103396046A
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- Prior art keywords
- lead
- brick
- baking
- zinc
- milltailings
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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
Abstract
The invention provides a baking-free brick made of lead-zinc mineral tailings, and a production method thereof. The baking-free brick made of lead-zinc mineral tailings comprises, by weight, 60-80 parts of lead-zinc mineral tailings, 10-20 parts of cement, 5-10 parts of limestone and 1-3 parts of a concrete foaming agent. The production method comprises the steps of mixing the raw materials uniformly; compression molding; and then maintaining for 21-26 days at a temperature of 45-55 DEG C. The lead-zinc tailings are changed into valuables and utilized effectively. Main performance of the prepared brick can meet the requirements of a strength grade for MU10 of concrete perforated bricks in a JC943-2004 standard of building materials industry. The prepared brick has excellent anti-frost property; a specimen is good in appearance after 30 times of freezing and thawing cycles; the dry unit weight of a product is only 3/5 that of a shale solid brick; and compressive strength can reach as high as 12.1 MPa. The baking-free brick is suitable for load-bearing and non-load-bearing filling blocks of buildings and belongs to low-energy consumption and environment-friendly wall materials.
Description
Technical field:
The present invention relates to the non-burning brick and production method of a kind of plumbous zinc milltailings, belong to the building wall material technical field.
Background technology:
Along with China's rapid economic development, the extensive style of economic increase of tradition makes the contradiction of china natural resources shortage more and more outstanding, and environmental stress is increasing.Walking new path of industrialization with Chinese characteristics, Developing Circulation Economy, raising resource utilization, is the only way that the current china natural resources of solution, environment restrict Economic development.Metal tailings comprehensive utilization difficulty is large, involve many areas, and both related company and the industry survival and development, affected again environment and safety, is the focus of social concerns.With solid waste such as flyash, coal gangues, compare, the comprehensive utilization technique of mine tailing is more complicated, difficulty is larger.At present, China's industrial solid castoff comprehensive utilization ratio is in 60% left and right, and the comprehensive utilization ratio of metal tailings is on average less than 10%, and by contrast, the comprehensive utilization of mine tailing lags behind other large solid waste greatly.Mine tailing has become China's industry large solid waste that quantum of output is maximum at present, comprehensive utilization ratio is minimum.
Heavy metal in Pb-Zn tailings, in the effect entered environments such as leaching, weathering oxidation, cause serious harm to environment.In Pb-Zn tailings, plumbous content is the highest, is secondly zinc, is then copper, is then arsenic, and cadmium, be finally mercury.The granularity of mine tailing is thinner, the easier stripping of objectionable constituent, and environmental pollution is more serious.Zinc is than the easier stripping of other element, easier contaminate environment; Soil around mine tailing has been subject to zinc, cadmium and plumbous combined pollution, if therefore do not fully utilized, mine tailing will have a strong impact on edatope.
Summary of the invention:
The objective of the invention is problem for above-mentioned existence provides a kind of plumbous zinc milltailings non-burning brick and production method, realize turning waste into wealth, and production technique is simple, and energy-conserving and environment-protective.
Above-mentioned purpose realizes by following technical scheme:
Plumbous zinc milltailings is non-burning brick, comprises by weight plumbous zinc milltailings 60-80 part, cement 10-20 part, Wingdale 5-10 part, concrete foamer 1-3 part.
Described plumbous zinc milltailings is non-burning brick, and described concrete foamer comprises calcium carbonate, water glass, silicon carbide, carbon black, and each component is mixed and got final product by identical part by weight.
The non-burning brick production method of plumbous zinc milltailings, the method comprises the steps:
(1) according to ratio of weight and number, plumbous zinc milltailings 60-80 part, cement 10-20 part, Wingdale 5-10 part are uniformly mixed after adding water 6-10 part;
(2) in the compound that step (1) mixes, add concrete foamer 1-3 part to mix rear compression moulding, then carry out maintenance, curing temperature 45-55 ° of C, maintenance 21-26 days.
Beneficial effect:
1. Pb-Zn tailings is turned waste into wealth in the present invention, has carried out effective utilization, not only can take full advantage of Mineral resources, enlarges Mineral resources and utilizes scope, extends mine life; Also to administer to pollute, protect ecological important means; Can also save a large amount of soils and fund, solve the problem of employing the population, the society that brings benefit to the mankind, realize effective unification of economy of resources, economic benefit, social benefit and environmental benefit.
2. the simple and energy-conserving and environment-protective of technique of the present invention.With a small amount of cement and large volume Pb-Zn tailings, the brick of making, its salient features reaches the requirement of the MU10 strength grade of JC943-2004 building material industry concrete perforated brick, anti-freezing property is more superior, through the sample well-tended appearance after 30 freeze-thaw cycle, product dried unit weight is only 3/5 of shale hollow brick, and ultimate compression strength can reach 12.1 MPa, be applicable to buildings load-bearing and non-bearing filling building block, belong to less energy-consumption environmental-friendly walling material.
Embodiment:
Embodiment 1:
Plumbous zinc milltailings is non-burning brick, comprises by weight plumbous zinc milltailings 60-80 part, cement 10-20 part, Wingdale 5-10 part, concrete foamer 1-3 part.
Embodiment 2:
Described plumbous zinc milltailings is non-burning brick, and described concrete foamer comprises calcium carbonate, water glass, silicon carbide, carbon black, and each component is mixed and got final product by identical part by weight.
The non-burning brick production method of plumbous zinc milltailings, the method comprises the steps:
(1) according to ratio of weight and number, plumbous zinc milltailings 60-80 part, cement 10-20 part, Wingdale 5-10 part are uniformly mixed after adding water 6-10 part;
(2) in the compound that step (1) mixes, add concrete foamer 1-3 part to mix rear compression moulding, then carry out maintenance, curing temperature 45-55 ° of C, maintenance 21-26 days.
The sintered perforated brick that utilizes iron tailings to produce, comprise 60 parts, iron tailings powder, 20 parts of clays, 30 parts, flyash, Na by weight
21 part of Oeq, 3 parts of f-CaO.
The disclosed technique means of the present invention program is not limited only to the disclosed technique means of above-mentioned technique means, also comprises by above technical characterictic and is equal to the technical scheme that replacement forms.Unaccomplished matter of the present invention, belong to those skilled in the art's common practise.
Claims (3)
1. a plumbous zinc milltailings is non-burning brick, it is characterized in that: comprise by weight plumbous zinc milltailings 60-80 part, cement 10-20 part, Wingdale 5-10 part, concrete foamer 1-3 part.
2. plumbous zinc milltailings according to claim 1 is non-burning brick, and it is characterized in that: described concrete foamer comprises calcium carbonate, water glass, silicon carbide, carbon black, and each component is mixed and got final product by identical part by weight.
3. non-burning brick production method of plumbous zinc milltailings, it is characterized in that: the method comprises the steps:
(1) according to ratio of weight and number, plumbous zinc milltailings 60-80 part, cement 10-20 part, Wingdale 5-10 part are uniformly mixed after adding water 6-10 part;
(2) in the compound that step (1) mixes, add concrete foamer 1-3 part to mix rear compression moulding, then carry out maintenance, curing temperature 45-55 ° of C, maintenance 21-26 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103310062A CN103396046A (en) | 2013-08-01 | 2013-08-01 | Baking-free brick made of lead-zinc mineral tailings, and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103310062A CN103396046A (en) | 2013-08-01 | 2013-08-01 | Baking-free brick made of lead-zinc mineral tailings, and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103396046A true CN103396046A (en) | 2013-11-20 |
Family
ID=49559839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103310062A Pending CN103396046A (en) | 2013-08-01 | 2013-08-01 | Baking-free brick made of lead-zinc mineral tailings, and production method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103396046A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402354A (en) * | 2014-10-27 | 2015-03-11 | 福州大学 | Lead-zinc mine tailing baking-free brick with micronano-CeO2 powder as heavy metal ion fixation agent |
| CN104987014A (en) * | 2015-07-25 | 2015-10-21 | 福州大学 | Radiation-shielding concrete adopting lead-zinc tailings as raw material and preparation method therefor |
| CN105906241A (en) * | 2016-04-19 | 2016-08-31 | 方耀 | Formula of high workability concrete |
| CN107857538A (en) * | 2017-11-27 | 2018-03-30 | 宁夏锦和星再生资源发展有限公司 | Utilize the environment-friendlyroad road face brick and its production method for aoxidizing the production of rotary kiln tailings |
-
2013
- 2013-08-01 CN CN2013103310062A patent/CN103396046A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402354A (en) * | 2014-10-27 | 2015-03-11 | 福州大学 | Lead-zinc mine tailing baking-free brick with micronano-CeO2 powder as heavy metal ion fixation agent |
| CN104987014A (en) * | 2015-07-25 | 2015-10-21 | 福州大学 | Radiation-shielding concrete adopting lead-zinc tailings as raw material and preparation method therefor |
| CN104987014B (en) * | 2015-07-25 | 2017-06-06 | 福州大学 | A kind of radiation shield concrete with Pb-Zn tailings as raw material and preparation method thereof |
| CN105906241A (en) * | 2016-04-19 | 2016-08-31 | 方耀 | Formula of high workability concrete |
| CN107857538A (en) * | 2017-11-27 | 2018-03-30 | 宁夏锦和星再生资源发展有限公司 | Utilize the environment-friendlyroad road face brick and its production method for aoxidizing the production of rotary kiln tailings |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131120 |
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| WD01 | Invention patent application deemed withdrawn after publication |