CN102358691A - Novel steam-cured brick produced by utilizing waste phosphorous slag and preparation method thereof - Google Patents
Novel steam-cured brick produced by utilizing waste phosphorous slag and preparation method thereof Download PDFInfo
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- CN102358691A CN102358691A CN2011102083486A CN201110208348A CN102358691A CN 102358691 A CN102358691 A CN 102358691A CN 2011102083486 A CN2011102083486 A CN 2011102083486A CN 201110208348 A CN201110208348 A CN 201110208348A CN 102358691 A CN102358691 A CN 102358691A
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- steam
- cured
- phosphorus ore
- brick
- ore slag
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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 relates to a novel steam-cured brick produced by utilizing waste phosphorous slag, which consists of silica sand 60%-80%, the phosphorous slag 15%-50% and lime 1%-10%. A preparation method of the novel steam-cured brick comprises the following steps: metering the silica sand 60%-80%, the phosphorous slag 15%-50% and the lime 1%-10% and mixing with water to obtain mixture, performing digesting reaction of the mixture in a digesting reaction bin for 5 hours, evenly mixing the mixture after the digesting reaction, delivering the mixture to a forming device to be pressed into bases, stacking the bases formed in pressing mode on a steam curing trolley and then feeding the bases into a still kettle to be cured by steam, obtaining finished steam-cured bricks, and obtaining the novel steam-cured bricks after inspection and package. The novel steam-cured brick is produced by utilizing the waste phosphorous slag, thereby recycling waste materials, saving resources and reducing pollution to environment. Compared with the prior art, the energy-saving and environment-protecting purposes can be achieved by means of the process. The novel steam-cured brick has the advantages of being high in strength, good in contractibility, strong in anti-carbonization capability and the like, and opens up a new way for comprehensive utilization of the phosphorous slag.
Description
Technical field
The present invention relates to a kind of novel steam press maintenance brick, be specifically related to a kind of novel steamed brick that utilizes discarded phosphorus ore slag production and preparation method thereof, belong to the construction material processing technique field.
Background technology
The construction material of China all adopts the solid clay brick of firing basically, according to statistics, burns general 6,000 hundred million of clay brick every year; Approximately need to damage 100,000 mu of farming lands, need to consume about 7,000 ten thousand tons of mark coals, and to a large amount of toxic gases such as sulphur of airborne release; Industrial residues such as annual discharging coal ash and coal ore; Also need take a large amount of soils, severe contamination environment, destroyed the eubiosis.Therefore, country propose to adopt novel wall material substitute for clay brick in the Tenth Five-year plan, the production of restriction clay brick, and provide corresponding standard and support.Country had implemented to forbid doing new clay brick field in 2004, and national big and medium-sized cities banned use of solid clay brick in 2008, and clay brick is in slowly the building materials market of fading out.But steady-state growth and development along with China's economy; The quickening of real estate and urban construction paces; Building wall material is had huge demand, and in order not influence the developing steps of domestic fundamental construction, the research and development of novel materials for wall become the focus that addresses this problem.
A kind of industrial residue that the phosphorus ore slag is discharged when being producing yellow Phosphorus by electric oven, white powder, its staple is a Calucium Silicate powder, contains materials such as heavy metal element cadmium, phosphorus, fluorine.China produces about 8,000,000 tons of phosphorus ore slags per year; Except being applied on a small quantity build the Additive, still the phosphorus ore slag there is not rational treatment process, a large amount of phosphorus ore slags mainly is to be deposited in the poisonous element that plant area or cadmium are the harm plant-growths; Cadmium is to the harm of crop; When low concentration,, can jeopardize human health through food chain though there is not tangible symptom in appearance.When soil cadmium concentration height arrives certain content, can not only be residual in plant materials, and can produce significantly harm to growth and development of plant.Not only help the protection of environmental resources to economize on resources so solve depleted phosphorus ore slag, for new approach has been found out in the scoriaceous comprehensive utilization of phosphorus.
Summary of the invention
The purpose of this invention is to provide a kind of novel steam press maintenance brick that utilizes the phosphorus ore slag to produce; This novel steam press maintenance brick intensity is high, good, the anti-carbonization ability of shrinkability is strong; And can solve the scoriaceous stacking problem of phosphorus, solved waste and the pollution of conventional clay simultaneously to environmental resources.
In order to address the above problem, the technical scheme that the present invention adopted is:
A kind of novel steamed brick that utilizes discarded phosphorus ore slag to produce, form by following raw materials by weight:
Silica sand 60 ~ 80%, phosphorus ore slag 15 ~ 50%, unslaked lime 1 ~ 10%.
Another object of the present invention provides a kind of method of utilizing discarded phosphorus ore slag to produce novel steamed brick for preparing, and comprises the steps:
A kind of preparation method who utilizes the novel steamed brick of discarded phosphorus ore slag production comprises the steps:
(1) batch mixing: sand 60 ~ 80%, granularity≤1.5mm phosphorus ore slag 15 ~ 50% and the 120 orders ~ 400 purpose unslaked limes 1 ~ 10% of granularity≤2mm are blunged to mix to such an extent that compound is subsequent use;
(2) digestion reaction: the compound that step (1) is mixed was delivered in the digestion reaction storehouse digestion reaction 5 hours, delivered to whisking appliance again and stirred once more;
(3) compression moulding: the brick pressing machine of the compound that stirs behind step (2) digestion reaction being delivered to pressure >=200 ton is pressed into base;
(4) steam press maintenance: the base stacking of step (3) compression moulding sent in steam-cured dolly carry out steam-curedly in the autoclave, the steam-cured time is 6 ~ 8 hours, and steam-cured pressure is 8 ~ 10kg/cm
2, steam-cured temperature is 180 ~ 200 ℃, steamed brick gets product.
Above-mentioned silica sand is meant and contains the high hillside sand of element silicon, extra large sand, lake sand or river sand;
Above-mentioned phosphorus ore slag is meant that Rock Phosphate (72Min BPL) is through refining the castaway slag that selects phosphorus ore to discharge.
The present invention with respect to the beneficial effect of prior art is:
1. adopt the phosphorus ore slag to produce steamed brick, can practice thrift a large amount of soils, solved the phosphorus ore slag muck and put the pollution and the destruction of bringing, solved the problem of the wasting of resources simultaneously, make the phosphorus ore slag obtain utilizing effectively fully to environment;
2. utilize the phosphorus ore slag to produce steamed brick, can reach the effect of energy-saving and emission-reduction, reduce topsoil;
3. utilize phosphorus ore slag and river sand to be main raw material, reduced tradition and added the dressing amount;
4. adopt the phosphorus ore slag to produce steamed brick, the deadweight that alleviates buildings not only helps antidetonation, has also reduced the basic expense of buildings, and because of its density is littler than clay brick, thermal conductivity is little, and thermal resistance is big, and new building energy-saving effect is good than the clay brick buildings.
Embodiment
Through embodiment the present invention is explained further details below, these embodiment only are used for explaining the present invention, do not limit the scope of the invention.
Embodiment 1
(1) batch mixing: sand 60%, granularity≤1.5mm phosphorus ore slag 30% and 120 orders ~ 400 purpose unslaked limes 10% of granularity≤2mm are blunged and mixed to such an extent that compound is subsequent use;
(2) digestion reaction: the compound that step (1) is mixed was delivered in the digestion reaction storehouse digestion reaction 5 hours, delivered to whisking appliance again and stirred once more;
(3) compression moulding: the brick pressing machine of the compound that stirs behind step (2) digestion reaction being delivered to pressure >=200 ton is pressed into base;
(4) steam press maintenance: the base stacking of step (3) compression moulding sent in steam-cured dolly carry out steam-curedly in the autoclave, the steam-cured time is 6 hours, and steam-cured pressure is 8kg/cm
2Steam-cured temperature is 180 ℃, and steamed brick gets product.
Embodiment 2
((1) batch mixing: sand 70%, granularity≤1.5mm phosphorus ore slag 25% and 120 orders ~ 400 purpose unslaked limes 5% of granularity≤2mm are blunged and mixed to such an extent that compound is subsequent use;
(2) digestion reaction: the compound that step (1) is mixed was delivered in the digestion reaction storehouse digestion reaction 5 hours, delivered to whisking appliance again and stirred once more;
(3) compression moulding: the brick pressing machine of the compound that stirs behind step (2) digestion reaction being delivered to pressure >=200 ton is pressed into base;
(4) steam press maintenance: the base stacking of step (3) compression moulding sent in steam-cured dolly carry out steam-curedly in the autoclave, the steam-cured time is 7 hours, and steam-cured pressure is 9kg/cm
2Steam-cured temperature is 190 ℃, and steamed brick gets product.
Embodiment 3
(1) batch mixing: sand 80%, granularity≤1.5mm phosphorus ore slag 19% and 120 orders ~ 400 purpose unslaked limes 1% of granularity≤2mm are blunged and mixed to such an extent that compound is subsequent use;
(2) digestion reaction: the compound that step (1) is mixed was delivered in the digestion reaction storehouse digestion reaction 5 hours, delivered to whisking appliance again and stirred once more;
(3) compression moulding: the brick pressing machine of the compound that stirs behind step (2) digestion reaction being delivered to pressure >=200 ton is pressed into base;
(4) steam press maintenance: the base stacking of step (3) compression moulding sent in steam-cured dolly carry out steam-curedly in the autoclave, the steam-cured time is 8 hours, and steam-cured pressure is 10kg/cm
2Steam-cured temperature is 200 ℃, and steamed brick gets product.
Claims (6)
1. one kind is utilized the novel steamed brick of discarding the production of phosphorus ore slag, and it is characterized in that: this novel steamed brick is made up of following raw materials by weight:
Silica sand 60 ~ 80%, phosphorus ore slag 15 ~ 50%, unslaked lime 1 ~ 10%.
2. one kind is used to prepare the method that the novel steamed brick of phosphorus ore slag production is discarded in the described utilization of claim 1, it is characterized in that: comprise the steps:
(1) batch mixing: silica sand 60 ~ 80%, granularity≤1.5mm phosphorus ore slag 15 ~ 50% and the 120 orders ~ 400 purpose unslaked limes 1 ~ 10% of granularity≤2mm are blunged to mix to such an extent that compound is subsequent use;
(2) digestion reaction: the compound that step (1) is mixed was delivered in the digestion reaction storehouse digestion reaction 5 hours, delivered to whisking appliance again and stirred once more;
(3) compression moulding: the brick pressing machine of the compound that stirs behind step (2) digestion reaction being delivered to pressure >=200 ton is pressed into base;
(4) steam press maintenance: the base stacking of step (3) compression moulding sent in steam-cured dolly carry out steam-curedly in the autoclave, the steam-cured time is 6 ~ 8 hours, and steam-cured pressure is 8 ~ 10kg/cm
2, steam-cured temperature is 180 ~ 200 ℃, steamed brick gets product.
3. a kind of novel steamed brick that utilizes discarded phosphorus ore slag to produce according to claim 1 and 2, it is characterized in that: described silica sand is meant and contains the high hillside sand of element silicon, extra large sand, lake sand or river sand.
4. a kind of novel steamed brick that utilizes discarded phosphorus ore slag to produce according to claim 1 and 2 is characterized in that: described phosphorus ore slag is meant that Rock Phosphate (72Min BPL) is through refining the castaway slag that selects phosphorus ore to discharge.
5. a kind of novel steamed brick that utilizes discarded phosphorus ore slag to produce according to claim 1, it is characterized in that: the scoriaceous granularity of described phosphorus is≤1.5mm.
6. a kind of novel steamed brick that utilizes discarded phosphorus ore slag to produce according to claim 1, it is characterized in that: the granularity of described silica sand is≤2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102083486A CN102358691A (en) | 2011-07-25 | 2011-07-25 | Novel steam-cured brick produced by utilizing waste phosphorous slag and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102083486A CN102358691A (en) | 2011-07-25 | 2011-07-25 | Novel steam-cured brick produced by utilizing waste phosphorous slag and preparation method thereof |
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| CN102358691A true CN102358691A (en) | 2012-02-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105837147A (en) * | 2016-03-25 | 2016-08-10 | 刘建荣 | Casting used sand composite brick and preparation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519896A (en) * | 2009-04-08 | 2009-09-02 | 四川方大新型建材科技开发有限责任公司 | Vapor-pressing plaster brick and preparation method thereof |
| CN101774776A (en) * | 2010-01-29 | 2010-07-14 | 贵州省建筑材料科学研究设计院 | Inorganic thermal insulation light aggregate prepared by phosphorous slag and preparation method thereof |
| CN101774217A (en) * | 2010-01-13 | 2010-07-14 | 贵阳高新伟创麟丰科技实业有限公司 | Preparation method of permeable brick by using phosphorous slag |
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2011
- 2011-07-25 CN CN2011102083486A patent/CN102358691A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519896A (en) * | 2009-04-08 | 2009-09-02 | 四川方大新型建材科技开发有限责任公司 | Vapor-pressing plaster brick and preparation method thereof |
| CN101774217A (en) * | 2010-01-13 | 2010-07-14 | 贵阳高新伟创麟丰科技实业有限公司 | Preparation method of permeable brick by using phosphorous slag |
| CN101774776A (en) * | 2010-01-29 | 2010-07-14 | 贵州省建筑材料科学研究设计院 | Inorganic thermal insulation light aggregate prepared by phosphorous slag and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105837147A (en) * | 2016-03-25 | 2016-08-10 | 刘建荣 | Casting used sand composite brick and preparation method |
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Application publication date: 20120222 |