CN101381221B - Phosphorous slag vapor compression brick and preparation method thereof - Google Patents

Phosphorous slag vapor compression brick and preparation method thereof Download PDF

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Publication number
CN101381221B
CN101381221B CN2008100462912A CN200810046291A CN101381221B CN 101381221 B CN101381221 B CN 101381221B CN 2008100462912 A CN2008100462912 A CN 2008100462912A CN 200810046291 A CN200810046291 A CN 200810046291A CN 101381221 B CN101381221 B CN 101381221B
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Prior art keywords
phosphorus slag
perlite
magnesia
brick
slag
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Expired - Fee Related
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CN2008100462912A
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Chinese (zh)
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CN101381221A (en
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言显志
言尚伟
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B30/00—Compositions for artificial stone, not containing binders
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/40—Porous or lightweight materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/52—Sound-insulating materials
    • 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 discloses a phosphorous slag vapor compression brick and a method for preparing the same. The brick takes phosphorous slag generated during the extraction of dicalcium phosphate in the phosphating industry as a main material, and takes washed sand, magnesite, perlite, limestone ore and additive brine as auxiliary materials, wherein the weight percentages of the components in the rawmaterials are as follows: 71 to 76 percent of phosphorous slag, 11 to 14 percent of washed sand, 3.5 to 5.5 percent of magnesia, 3.5 to 5.5 percent of heavy calcium, 1.5 to 3.5 percent of perlite and 1.5 to 3.5 percent of brine. The phosphorous slag and the brine are subjected to dephosphorization and deacidification, and are added with the washed sand, the magnesite, the perlite and the heavy calcium , the mixture is mixed, crushed and transferred to a high pressure machine for pressing, and is subjected to vapor heating to obtain the finished product. The phosphorous slag vapor compression brick and the method for preparing the same have the advantages of light weight, heat insulation and sound insulation, high compression resisting strength, beautiful and smooth appearance, stable dimension, uniform color and luster and good quality, and changes wastes into valuable to protect land resources, and reaches the standard for seismic protection of buildings, so that the brick is particularly applied to the antiknock reconstruction at present.

Description

A kind of phosphorus slag vapour compression brick and preparation method thereof
Technical field
The present invention relates to the industrial residue brick that a kind of construction work is used, particularly to be the waste residue that utilizes phosphatization industry contract non-burning brick and preparation method thereof for a kind of phosphorous slag vapor of main raw material.
Background technology
The a large amount of use clay brick of construction work industry in the whole nation, the consumption of the annual clay brick of rough calculation is near 10,000 hundred million, and this causes huge threat to land resources, ecotope.For this reason, clay brick is all wanted to ban use of in all parts of the country, but does not have good substitute.
Along with constantly development of phosphatization industry, a large amount of phosphorus slag of annual phosphatization factory's discharge, its Chemical Composition is: CaO, SiO 2, P 2O 5, Al 2O 3, Fe 2O 3, F, potential mineral facies are pseudowollastonite, cuspidite and a spot of phosphatic rock.Its structure about 90% is a vitreum.When electric furnace process is produced yellow phosphorus, 1 ton of yellow phosphorus of every production, 8-10 tons of by-product phosphorus slags.According to relevant analysis of statistical data, in the mid-90 in 20th century, about 107.8-130.0 ten thousand tons/year of world's electric furnace process phosphorus production ability total amounts, calculate in view of the above, the by-product phosphorus slag reaches 1078-1,300 ten thousand tons/year, and so a large amount of phosphorus slags will cause severe contamination to environment, takies a large amount of arable lands, the sustainable development of enterprise is brought very big pressure.Therefore,, study its recycling problem according to the physicochemical property of phosphorus slag, significant.
Country advocates the environmental type product, adopt preferential tax policy to encourage research and the utilization of enterprise to industrial residue, improve the utilization ratio of waste residue gradually, reduce the pollution of waste residue to ecotope, the stacking that reduces waste residue occupies cultivated land, turn waste into wealth, develop residue resource energetically, produce the environmental type product, save energy, reduce production costs, promote the fast development of enterprise.For this reason, how to turn waste into wealth, reduce environmental pollution, effectively utilize industrial residue, the exploitation building resource, reduce production costs, this is the consistent important topic of discussing of many brick fields over past ten years, also sees relevant report repeatly on public publication, but does not see that the report identical with the present invention arranged.
Summary of the invention
Purpose of the present invention is in order to protect land resources and effective development and use industrial residue---phosphorus slag, through contriver's research trial repeatedly for many years, success a kind of phosphorous slag vapor compression brick and preparation method thereof is provided.
The technical solution used in the present invention is:
A kind of phosphorous slag vapor compression brick, with the industrial residue is major ingredient, being equipped with auxiliary material and additive forms, make finished product through batching, pulverizing, mixing, high-pressure molding, steam-heated cal(l)andria, described industrial residue is the phosphorus slag of phosphatization industry, auxiliary material is for washing sand, magnesia, perlite, coarse whiting, additive Wei Halogen water, proportioning raw materials by weight percentage:
Phosphorus slag 71～76%,
Wash husky 11～14%,
Magnesia 3.5～5.5%,
Perlite 1.5～3.5%,
Coarse whiting 3.5～5.5%,
Halogen water 1.5～3.5%.
Proportioning raw materials is by weight percentage more specifically:
Phosphorus slag 73.2%,
Wash husky 12.2%,
Magnesia 4.9%,
Perlite 2.4%,
Coarse whiting 4.9%,
Halogen water 2.4%.
Described phosphorus slag is that the phosphorus slag that secondary calcium phosphate produced is extracted in phosphatization industry.
Described magnesia can replace with cement.
Described work in-process were through steam-heated cal(l)andria 2 hours.
The making method of above-mentioned phosphorous slag vapor compression brick comprises batching, pulverizing, mixing, high-pressure molding, steam-heated cal(l)andria operation, makes finished product by following step:
A. by above-mentioned described batching, proportioning raw materials by weight percentage:
Phosphorus slag 71～76%,
Wash husky 11～14%,
Magnesia 3.5～5.5%,
Perlite 1.5～3.5%,
Coarse whiting 3.5～5.5%,
Halogen water 1.5～3.5%;
B. after described batching phosphorus slag Yong Halogen water being carried out dephosphorization deacidification, add and wash sand, magnesia, perlite, coarse whiting and stir, its caking is crushed to maximum particle size≤3mm with broken powder machine;
C. the material after pulverizing is transported to brick pressing machine behind the mixing machine thorough mixing, be pressed into work in-process;
D. with work in-process through steam-heated cal(l)andria (95～105 ℃) 1.5-2.5 hour, obtain described product.
The pressure of described high pressure compacting is 200T.
Described work in-process were through steam-heated cal(l)andria 2 hours.
Described magnesia replaces with cement.
Beneficial effect of the present invention:
1. effectively developed the phosphorus slag that phosphatization industry is got rid of, contained the pollution of phosphorus slag to ecotope, turned waste into wealth, waste economizes on resources;
2. better instead of clay brick has been protected land resources, has been saved and plough;
3. compare with clay brick, the both consumption of save energy, the waste of resource is with short production cycle again, and cost is low, "dead" pollution etc.;
4. small product size is light, alleviated the bearing capacity of building room body of wall, can be heat insulation again can sound insulation, ultimate compression strength is big, outward appearance is neat, dimensional stabilizing, novel high-quality brick that color and luster is even, attractive in appearance, reach building aseismicity standard (antidetonation pressure is 16MPa), especially be suitable for present antidetonation and rebuild.
According to the GB6566-2001 standard test, the index of testing meets GB6566-2001 standard (seeing Table) to the sample of this product through the Deyang City product quality supervision and testing institute
Table one Deyang City product quality supervision and testing institute survey report
Figure G2008100462912D00041
The present invention is described further below in conjunction with the drawings and the specific embodiments.
Description of drawings
Fig. 1 is a manufacturing process flow diagram of the present invention.
Embodiment
Embodiment one:
This phosphorous slag vapor compression brick, waste residue-phosphorus slag that raw material extracts the secondary calcium phosphate discharge already with phosphorous chemical industry is a major ingredient, be equipped with auxiliary material and wash sand, magnesia, perlite, lime ore deposit and Tian Jia Ji Halogen water, proportioning raw materials by weight percentage: phosphorus slag 73.2%, wash husky 12.2%, magnesia 4.9%, perlite 2.4%, lime ore deposit (coarse whiting) 4.9%, Halogen water 2.4%.
Earlier with after the phosphorus slag, Halogen water dephosphorization deacidification (removing radioactive poison), add and wash sand, magnesia, perlite, lime ore deposit and stir, its caking is crushed to maximum particle size≤3mm with the broken powder machine of pair roller type; Material after will pulverizing is again delivered to mixing machine with rotary conveyor, its material after carrying out thorough mixing, gravity mixer is entered semi-automatic brick pressing machine compression moulding (brick pressing machine contains pressure 200T) work in-process, at last work in-process are sent into steam oven and carried out steam-heated cal(l)andria (about 100 ℃) 2 hours, promptly get the finished bricks that contains moisture about 10%.
Can add 5%～10% water according to the different moisture content of phosphorus slag in the above-mentioned said phosphorus slag, Halogen water dephosphorization deacidification, make finished bricks water content 5%～10%.Above-mentioned said roll-type is broken powder machine, rotary conveyor, gravity mixer, semi-automatic brick pressing machine, steam oven and is existing installation.
Embodiment two:
This phosphorous slag vapor compression brick, proportioning raw materials be by weight percentage: phosphorus slag 71%, wash husky 11%, magnesia or cement 5.5%, perlite 3.5%, lime ore deposit 5.5% (coarse whiting), Halogen water 3.5%.
Manufacturing process is with implementing one.
Embodiment three:
This phosphorous slag vapor compression brick, proportioning raw materials be by weight percentage: phosphorus slag 76%, wash husky 14%, magnesia or cement 3.5%, perlite 1.5%, lime ore deposit 3.5% (coarse whiting), Halogen water 1.5%.
Manufacturing process is with implementing one.

Claims (8)

1. phosphorous slag vapor compression brick, raw material is to be major ingredient with the industrial residue, being equipped with auxiliary material and additive forms, make finished product through batching, pulverizing, mixing, high-pressure molding, steam-heated cal(l)andria, it is characterized in that described industrial residue is the phosphorus slag of phosphatization industry, auxiliary material is for washing sand, magnesia, perlite, coarse whiting, additive Wei Halogen water, proportioning raw materials is by weight percentage:
Phosphorus slag 71～76%
Wash husky 11～14%
Magnesia 3.5～5.5%
Perlite 1.5～3.5%
Coarse whiting 3.5～5.5%
Halogen water 1.5～3.5%.
2. phosphorous slag vapor compression brick according to claim 1 is characterized in that, proportioning raw materials by weight percentage:
Phosphorus slag 73.2%
Wash husky 12.2%
Magnesia 4.9%
Perlite 2.4%
Coarse whiting 4.9%
Halogen water 2.4%.
3. phosphorus slag vapour compression brick according to claim 1 and 2 is characterized in that, described phosphorus slag is that the phosphorus slag that secondary calcium phosphate produced is extracted in phosphatization industry.
4. phosphorus slag vapour compression brick according to claim 1 and 2 is characterized in that, described magnesia adopts cement to replace.
5. the making method of a phosphorous slag vapor compression brick comprises batching, pulverizing, mixing, high-pressure molding, steam-heated cal(l)andria operation, it is characterized in that, makes finished product by following step:
A. by aforesaid right requirement 1 described batching, proportioning raw materials by weight percentage:
Phosphorus slag 71～76%
Wash husky 11～14%
Magnesia 3.5～5.5%
Perlite 1.5～3.5%
Coarse whiting 3.5～5.5%
Halogen water 1.5～3.5%;
B. after described batching phosphorus slag Yong Halogen water being carried out dephosphorization deacidification, add and wash sand, magnesia, perlite, coarse whiting and stir, its caking is crushed to maximum particle size≤3mm with broken powder machine;
C. the material after pulverizing is transported to brick pressing machine behind the mixing machine thorough mixing, be pressed into work in-process;
D. work in-process get product through steam heating 1.5～2.5 hours.
6. the making method of phosphorus slag vapour compression brick according to claim 5 is characterized in that, the pressure of described brick pressing machine is 200T.
7. the making method of phosphorus slag vapour compression brick according to claim 5 is characterized in that, work in-process were through steam-heated cal(l)andria 2 hours.
8. the making method of phosphorus slag vapour compression brick according to claim 5 is characterized in that described magnesia replaces with cement.
CN2008100462912A 2008-10-16 2008-10-16 Phosphorous slag vapor compression brick and preparation method thereof Expired - Fee Related CN101381221B (en)

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Application Number Priority Date Filing Date Title
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CN101381221B true CN101381221B (en) 2011-07-13

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Publication number Priority date Publication date Assignee Title
CN101608484B (en) * 2009-07-20 2011-10-05 贵州源隆新型环保墙体建材有限公司 Phosphorous slag autoclave aerated concrete building block and preparation method thereof

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Granted publication date: 20110713

Termination date: 20121016