CN1103390A - Method for preparing insulating foam building material using copper slag - Google Patents
Method for preparing insulating foam building material using copper slag Download PDFInfo
- Publication number
- CN1103390A CN1103390A CN93114992A CN93114992A CN1103390A CN 1103390 A CN1103390 A CN 1103390A CN 93114992 A CN93114992 A CN 93114992A CN 93114992 A CN93114992 A CN 93114992A CN 1103390 A CN1103390 A CN 1103390A
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- CN
- China
- Prior art keywords
- phosphoric acid
- slag
- foamed
- better
- solidification agent
- 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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Classifications
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/346—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition as a mixture of free acid and one or more phosphates
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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 method for producing insulating foam material for building uses such raw materials as copper slag, foaming substance (talc powder, lime stone powder, etc.), and foam solidifying agent (aluminium dihydrogen phosphate, phosphoric acid or their mixture) and features no-burning production and no pollution. The material is suitable for high-temp. furnace or kiln, low-temp. storehouse, hourse wall and roof, and insulating package.
Description
The present invention relates to the building material technical field, relate in particular to a kind of CR production technology with the novel thermal insulation/lagging material of the unburned manufacturing of copper slag.
The manufacturing of thermal insulation/lagging material is a kind of conventional art both at home and abroad already, but with this series products of the unburned manufacturing of copper slag, is not reported so far.
Copper slag (and other metallurgical slag) is the environmental pollution waste material of the large property of a class, along with industrial development, this class waste residue increases rapidly with growing with each passing day, and is serious day by day to the pollution of surrounding environment, water resources and agriculture production, caused the concern of national governments and various circles of society.
The present invention seeks to the copper slag resource is carried out the energy saving deep processing development, produce the novel thermal insulation of the high-performance/insulating foam material that helps improving energy-saving efficiency, increase substantially the technology content and the economic value added of copper slag product, energy efficient, turn waste into wealth, administer environment, make product inexpensive.
It is a kind of very abundant low-cost resource in the world that copper slag reaches in China, the copper slag accumulating amount in large-scale copper metallurgy bases such as Jiangxi Dexing, Daye, Hubei, Tongling, Anhui, Jinchuan, Gansu only, reached more than 10,000,000 tons at present, this is a kind of huge physical resources of producing unburned building materials, remarkable raw material required in this invention especially.Though as the addition material of cement, consumption only accounts for percentum of the total composition of cement to copper slag more at large.The present invention then is used as copper slag basic raw material and carries out deep processing, and its economic benefit is higher than as cement additive far away.
The present invention is at first with the copper slag drying, is milled down to less than 50 orders, and better be less than 100 orders, then with grade less than 50 orders, better be less than the dry foaming substance (for example, talcum powder, limestone powder, marble flour, snake stone flour, volatile matter etc. better are talcum powder) of 100 purposes, fully mix thoroughly, make foamed material, perhaps with exsiccant copper slag and above-mentioned exsiccant foaming substance raw material, mix grinding arrives less than 50 orders, better be less than 100 purpose grades, make foamed material.In the foamed material, the weight ratio of copper slag and foaming substance is 10: 0.5～10: 20, better is 10: 2～10: 4.
Copper slag can be used Water Quenching Slag, and quench slag or former slag of wind (is the copper slag that flows out naturally cooling in the stove.) when adopting prescription inequality and manufacturing process, copper slag can be used ferroalloy slag, slag and other nonferrous metallurgy slag replace, or mix use with them.The material of firing can adopt any or several and foamed solidification agent generation chemical reaction, produces the inorganic mineral (or chemical substance) and the organic substance (or chemical) of gas.Foaming substance is the powdered carbon of available certain particle size also, and expanded inorganic or organic granular material replaces, but they must not can and foamed solidification agent generated reactive gas.For example, pearlstone, hollow glass spheres or Tao Zhu, wood charcoal powder, coal dust, coke powder, expanded polystyrene particle etc.
Foamed solidification agent recited above is that concentration is that 10～100%(better is 40～85%) aluminium dihydrogen phosphate, with concentration be that 10～100%(better is 40～85%) the mixture of phosphoric acid, both weight ratio of mixture are (0～100): (100～0) better are (30～70): (70～30).Aluminium dihydrogen phosphate and phosphoric acid also can be separately use as the foamed solidification agent, also can be with their solid state crystallization body.Aluminium dihydrogen phosphate can be used SODIUM PHOSPHATE, MONOBASIC in case of necessity, and primary magnesium phosphate and other phosphoric acid salt replace, or adopt their mixture.Phosphoric acid can be used ortho-phosphoric acid, Hypophosporous Acid, 50, phosphorous acid, metaphosphoric acid, tetra-sodium, or their mixture, better is ortho-phosphoric acid.Above-mentioned phosphoric acid salt and phosphoric acid can also can individually or mix ground as the foamed solidification agent with liquid or xln.
Foamed material mixes with the foamed solidification agent, after fully stirring, injects or pours in the mould, allows its free foaming after fixing become the adiabatic heat-insulation foam building material.The weight proportion of foamed material and foamed solidification agent is 10: 1-10: 9, and better be 10: 3-10: 7.The foamed solidification operation can be finished under low temperature, room temperature or high temperature.
The phosphoric acid that uses among the present invention, ordinary methods oneself such as available rock phosphate powder and sulfuric acid reaction are produced, and aluminium dihydrogen phosphate phosphoric acid and aluminium hydroxide reaction make the also available similar approach manufacturing of other phosphoric acid salt.
The copper metallurgy ground-slag that uses among the present invention, must be under the temperature of 100-700 ℃ (better being 200-400 ℃), carry out drying/Passivation Treatment of 1-2 hour, its objective is control and the speed of regulating foamed solidification, but also available chromate aqueous solution, clear water, other is inorganic or solution of organic compound gives processing, goes to replace above-mentioned drying/passivation heavily to burn processing.
According to the product performance needs, the inorganic or organic short fiber of admixture in right amount also in the ground-slag.For example: glass, ore deposit fibre, asbestos, regenerated fiber, vegetable fibre, steel fiber etc.In order to mechanical properties such as the antidetonation that increases product, anti-folding, toughness are wear-resisting.Select suitable kinds of fibers and add quantity, or mix certain heat expansion inorganic substance, can regulate the bloated rate of higher temperature line of product of the present invention.Change the percentage composition of foaming substance in the foamed material, the addition of foamed solidification agent reaches operating procedure, can regulate unit weight, porosity and the pore size of product of the present invention.
If crystalline phosphoric acid, aluminium dihydrogen phosphate or other phosphate particle are admixed mixing in the foamed material, the gained compound comes down to a kind of novel high temperature resistant foamed cement.Only need add the water of specified quantity during use, fully after the stirring foaming, can be cast into the thermal insulation/insulating foam material of arbitrary shape.
Thermal insulation/insulating foam building material by the present invention produces can be used as High Temperature Furnaces Heating Apparatus, the high-quality thermal insulation material of kiln and equipment, and the lagging material of low temperature warehouse or equipment also can be used as the lightweight body of wall, thermal insulation of roof/heat preservation construction material, or be used as lightweight package material etc.
Embodiment one
Get the copper metallurgy ground-slag of 100 grams, 150 order grades, be placed on the iron spoon and burn redly in flame or the electric furnace, take out and cool the back and add 30 talcum powder that restrain 150 order grades, in beaker, fully mix thoroughly and make foamed material.With 30 gram concentration is 50% aluminium dihydrogen phosphate, with 20 gram concentration be that 50% phosphoric acid is mixed and made into the foamed solidification agent, then this foamed solidification agent is poured in the beaker that foamed material is housed, stir fast, the foamed material free foaming is solidified, can obtain refractoriness and reach about 1200 ℃, thermal conductivity is lower than diatomaceous high-temperature heat insulation foam materials.
Embodiment two
Get the copper metallurgy ground-slag of 100 grams, 150 order grades, talcum powder with 30 grams, 150 order grades, abundant mixing in beaker, make foamed material then to wherein adding a small amount of clear water, fully stir and make its even moist agglomerating diffusing optimum regime that is of pinching in one's hands, pouring 35 gram concentration then in beaker into is 85% phosphoric acid, stirs fast, and foamed material is fully contacted with strong phosphoric acid.By the time after foamed material begins generally to foam, stop immediately stirring, it freely solidified.Put into kiln or electric furnace after the final set and burn red taking-up, it is cooled off gradually, can obtain ultimate compression strength greater than 10 kilograms/cm
2, almost do not have line to open the high temperature resistant degree thermal insulation/heat-insulating light foam materials of rate.The adiabatic lightweight remittance of the anti-height of the rate of expanding foam material.
Claims (11)
1, with the copper slag drying, be milled down to 50 orders, better be less than 100 orders, then with grade less than 50 orders, better be fully to mix thoroughly, make foamed material, perhaps exsiccant copper slag and exsiccant foaming substance raw material mix grinding are arrived less than 50 orders less than the dry foaming substance of 100 purposes, better be less than 100 purpose grades, make foamed material.In the foamed material, the weight ratio of copper slag and foaming substance is 10: 0.5～10: 20, better is 10: 2-4
2, be that 10-100%(better is 40-85% with concentration) aluminium dihydrogen phosphate be that 10-100%(better is 40-85% with concentration) phosphoric acid mix, make the foamed solidification agent, the weight ratio of aluminium dihydrogen phosphate and phosphoric acid is (0-100): (100-0), better be (30-70): (70-30).
3, with after foamed material and the stirring of foamed solidification agent thorough mixing, inject in (or pouring into) mould, allow its free foaming after fixing become the adiabatic heat-insulation foam building material.The weight proportion of foamed material and foamed solidification agent is 10: 1-10: 9, and better be 10: 3-10: 7.The foamed solidification operation can be finished under low temperature, room temperature, high temperature.
4, by the described copper slag of claim 1, it is characterized in that the also available ferroalloy slag of copper slag, slag and other nonferrous metallurgy slag replace or mix with it use.They can be Water Quenching Slag, wind quench slag or former slag.
5,, after it is characterized in that wearing into ground-slag, must carry out the heavily burning of 100 ℃-700 ℃ (better being 200 ℃-400 ℃), or with chromate aqueous solution, clear water, other solution inorganic or organic compound gives processing by the described copper slag of claim 1.According to the product performance needs, also can add inorganic in right amount or staple fibres such as organic fibre, steel fiber in the ground-slag, for example: glass, ore deposit fibre, asbestos, regenerated fiber, vegetable fibre.
6, by the described foaming substance of claim 1, it is characterized in that it can be any or several can the reaction with the foamed solidification agent, produce the inorganic mineral (or chemical substance) and the organic substance (or chemical) of gas, for example: talcum powder, limestone powder, marble flour, volatile matter, snake stone flour etc., it better is talcum powder, foaming substance also can be used the powdered carbon of certain particle size, expanded inorganic or organic granular material replaces, but they must not can and foamed solidification agent generated reactive gas, for example: pearlstone, hollow glass spheres or Tao Zhu, wood charcoal powder, coal dust, coke powder, expanded polystyrene particle etc.
7, by described aluminium dihydrogen phosphate of claim 2 and phosphoric acid, it is characterized in that aluminium dihydrogen phosphate phosphoric acid sodium dihydrogen, primary magnesium phosphate and other phosphoric acid salt replace, or adopt their mixture; Phosphoric acid can be used ortho-phosphoric acid, Hypophosporous Acid, 50, phosphorous acid, metaphosphoric acid, tetra-sodium or their mixture, better is ortho-phosphoric acid.Above-mentioned phosphoric acid salt and phosphoric acid can also can individually or mix ground as the foamed solidification agent with liquid or xln.
8, by described phosphoric acid of claim 7 and aluminium dihydrogen phosphate, it is characterized in that phosphoric acid can be with ordinary methods oneself productions such as ground phosphate rock and sulfuric acid reactions, aluminium dihydrogen phosphate phosphoric acid and aluminium hydroxide react and make the also available similar approach manufacturing of other phosphoric acid salt.
9, the frothing foam material that obtains by claim 3 is characterized in that its unit weight, porosity, pore size, set time, geometrical shape, coefficient of linear expansion, mechanical strength, the physicochemical characteristic of material all can rely on composition of raw materials and operating procedure freely to control and adjust.
10,, it is characterized in that the compound of gained comes down to a kind of novel high temperature resistant foamed cement when the foamed solidification agent adopts solid powder to mix with foamed material by described foamed material of claim 3 and foamed solidification agent thorough mixing.Only need add the water of specified quantity during use, fully after the stirring foaming, can be cast into the heat-insulating foam of arbitrary shape.
11, the adiabatic heat-insulation foam building material that obtains by claim 3 is characterized in that can be used as warm stove, the thermal insulation material of kiln and equipment, the lagging material of low temperature warehouse or equipment, also can be used as the lightweight body of wall, thermal insulation of roof/heat preservation construction material, or be used as lightweight package material etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93114992A CN1103390A (en) | 1993-11-27 | 1993-11-27 | Method for preparing insulating foam building material using copper slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93114992A CN1103390A (en) | 1993-11-27 | 1993-11-27 | Method for preparing insulating foam building material using copper slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1103390A true CN1103390A (en) | 1995-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93114992A Pending CN1103390A (en) | 1993-11-27 | 1993-11-27 | Method for preparing insulating foam building material using copper slag |
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| CN (1) | CN1103390A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114230308A (en) * | 2021-12-31 | 2022-03-25 | 赵隆昌 | Novel light heat-insulating refractory material based on talcum powder and production method thereof |
-
1993
- 1993-11-27 CN CN93114992A patent/CN1103390A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114230308A (en) * | 2021-12-31 | 2022-03-25 | 赵隆昌 | Novel light heat-insulating refractory material based on talcum powder and production method thereof |
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