CN110981326A - Production process of environment-friendly brick made of slag - Google Patents
Production process of environment-friendly brick made of slag Download PDFInfo
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- CN110981326A CN110981326A CN201910252045.0A CN201910252045A CN110981326A CN 110981326 A CN110981326 A CN 110981326A CN 201910252045 A CN201910252045 A CN 201910252045A CN 110981326 A CN110981326 A CN 110981326A
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
- C04B18/142—Steelmaking slags, converter slags
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a production process of an environment-friendly brick made of slag, which relates to the technical field of slag treatment and mainly comprises the following steps: 1) uniformly mixing slag, portland cement, broken stone and water according to the weight ratio of (3-5) to (4-8) to (1-3) to (3-6) to obtain slurry I; 2) adding an additive with the total weight of 5-10% into the slurry I obtained in the step 1), and stirring for 20-30min at the rotating speed of 600-800r/min to obtain a slurry II; 3) adding ethylene glycol distearate with the total weight of 1-2% into the slurry II obtained in the step 2), and stirring for 30-50min at the rotating speed of 300-600r/min to obtain a mixture; 4) pouring the mixture obtained in the step 3) into a mold, carrying out pressure molding, drying the module obtained after pressure molding at the temperature of 60-80 ℃, and standing for 5-10 days. The invention effectively utilizes the slag, improves the economic benefit and reduces the pollution to the environment.
Description
Technical Field
The invention relates to the technical field of slag treatment, in particular to a production process for preparing an environment-friendly brick from slag.
Background
Slag is a by-product in a blast furnace iron making process. In the iron-making process, iron oxide is reduced into metallic iron at high temperature, impurities in iron ore such as silicon dioxide, aluminum oxide and the like react with lime and the like to generate a melt with silicate and aluminosilicate as main components, and the melt is quenched into loose and porous granular substances, namely blast furnace slag, which is called slag for short.
In industrial production, slag plays an important role, but the slag has certain pollution to air, and people working in mines for many years are easy to cause respiratory diseases by the slag.
The existing slag is not well treated, the slag is usually discarded, not only is resources wasted and economic loss caused, but also the environment is adversely affected by the drifting of slag dust.
Disclosure of Invention
The invention aims to provide a production process of an environment-friendly brick made of slag, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a production process of an environment-friendly brick made of slag comprises the following steps:
1) uniformly mixing slag, portland cement, broken stone and water according to the weight ratio of (3-5) to (4-8) to (1-3) to (3-6), sieving with a 50-100 mesh sieve after crushing, and stirring for 10-15min under the condition of the rotating speed of 500r/min at 300-;
2) adding an additive with the total weight of 5-10% into the slurry I obtained in the step 1), and stirring for 20-30min at the rotating speed of 600-800r/min to obtain a slurry II;
3) adding ethylene glycol distearate with the total weight of 1-2% into the slurry II obtained in the step 2), and stirring for 30-50min at the rotating speed of 300-600r/min to obtain a mixture;
4) pouring the mixture obtained in the step 3) into a mold, carrying out pressure molding, drying the module obtained after pressure molding at the temperature of 60-80 ℃, and standing for 5-10 days.
As a further scheme of the invention: the stirring temperature in the step 3) is 50-60 ℃.
As a still further scheme of the invention: the pressure of the pressure molding in the step 4) is 60-80 MPa.
As a still further scheme of the invention: the additive in the step 2) comprises the following raw materials in parts by weight: 10-20 parts of quicklime, 20-30 parts of expanded perlite, 20-30 parts of porous ceramsite, 10-15 parts of polyurethane, 15-25 parts of phenolic resin, 8-16 parts of magnesium aluminum silicate, 0.4-0.8 part of sodium bisulfate and 2-4 parts of asbestos fiber.
As a still further scheme of the invention: the additive in the step 2) comprises the following raw materials in parts by weight: 15 parts of quicklime, 25 parts of expanded perlite, 25 parts of porous ceramsite, 12 parts of polyurethane, 20 parts of phenolic resin, 12 parts of magnesium aluminum silicate, 0.6 part of sodium bisulfate and 3 parts of asbestos fiber.
As a still further scheme of the invention: the diameter of the asbestos fiber is 0.6-1.2mm, and the length of the asbestos fiber is 50-80 mm.
The production process of the environment-friendly brick made of the slag is applied to the preparation of heat-insulating materials.
Compared with the prior art, the invention has the beneficial effects that:
the invention effectively utilizes the slag, improves the economic benefit, reduces the pollution to the environment, and the prepared environment-friendly brick has lower heat conductivity coefficient under the combined action of various raw materials, can effectively isolate heat, plays a role in heat preservation, and avoids the heat loss from indoor high temperature conduction to indoor in summer or indoor in winter; the environment-friendly brick has low volume water absorption and good waterproof performance, and can avoid indoor moisture regain when being used as a building material.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A production process of an environment-friendly brick made of slag comprises the following steps:
1) uniformly mixing slag, portland cement, broken stone and water according to a weight ratio of 3:4:1:3, crushing, sieving with a 50-mesh sieve, and stirring at a rotating speed of 300r/min for 10min to obtain slurry I;
2) adding an additive with the total weight of 5% into the slurry I obtained in the step 1), and stirring for 20min at the rotating speed of 600r/min to obtain a slurry II;
3) adding ethylene glycol distearate accounting for 1 percent of the total weight into the slurry II obtained in the step 2), and stirring for 30min at the rotating speed of 300r/min to obtain a mixture;
4) pouring the mixture obtained in the step 3) into a mold, carrying out pressure molding, drying the module obtained after pressure molding at 60 ℃, and standing for 5 days.
Wherein the stirring temperature in the step 3) is 50 ℃.
Wherein the pressure of the pressure molding in the step 4) is 60 MPa.
Wherein the additive in the step 2) comprises the following raw materials in parts by weight: 10 parts of quicklime, 20 parts of expanded perlite, 20 parts of porous ceramsite, 10 parts of polyurethane, 15 parts of phenolic resin, 8 parts of magnesium aluminum silicate, 0.4 part of sodium bisulfate and 2 parts of asbestos fiber.
Wherein the asbestos fibers have a diameter of 0.6mm and a length of 50 mm.
Example 2
A production process of an environment-friendly brick made of slag comprises the following steps:
1) uniformly mixing slag, portland cement, broken stone and water according to a weight ratio of 4:6:2:5, crushing, sieving with a 80-mesh sieve, and stirring at a rotating speed of 400r/min for 12min to obtain slurry I;
2) adding an additive with the total weight of 7% into the slurry I obtained in the step 1), and stirring for 25min at the rotating speed of 700r/min to obtain a slurry II;
3) adding ethylene glycol distearate accounting for 1.5 percent of the total weight into the slurry II obtained in the step 2), and stirring for 40min at the rotating speed of 450r/min to obtain a mixture;
4) pouring the mixture obtained in the step 3) into a mold, carrying out pressure molding, drying the module obtained after pressure molding at 70 ℃, and standing for 7 days.
Wherein the stirring temperature in the step 3) is 55 ℃.
Wherein the pressure forming pressure in the step 4) is 70 MPa.
Wherein the additive in the step 2) comprises the following raw materials in parts by weight: 15 parts of quicklime, 25 parts of expanded perlite, 25 parts of porous ceramsite, 12 parts of polyurethane, 20 parts of phenolic resin, 12 parts of magnesium aluminum silicate, 0.6 part of sodium bisulfate and 3 parts of asbestos fiber.
Wherein the asbestos fibers have a diameter of 0.9mm and a length of 65 mm.
Example 3
A production process of an environment-friendly brick made of slag comprises the following steps:
1) uniformly mixing slag, portland cement, broken stone and water according to a weight ratio of 5:8:3:6, crushing, sieving with a 100-mesh sieve, and stirring at a rotating speed of 500r/min for 15min to obtain slurry I;
2) adding an additive with the total weight of 10% into the slurry I obtained in the step 1), and stirring for 30min at the rotating speed of 800r/min to obtain a slurry II;
3) adding ethylene glycol distearate accounting for 2 percent of the total weight into the slurry II obtained in the step 2), and stirring for 50min at the rotating speed of 600r/min to obtain a mixture;
4) pouring the mixture obtained in the step 3) into a mold, carrying out pressure molding, drying the module obtained after pressure molding at 80 ℃, and standing for 10 days.
Wherein the stirring temperature in the step 3) is 60 ℃.
Wherein the pressure forming pressure in the step 4) is 80 MPa.
Wherein the additive in the step 2) comprises the following raw materials in parts by weight: 20 parts of quicklime, 30 parts of expanded perlite, 30 parts of porous ceramsite, 15 parts of polyurethane, 25 parts of phenolic resin, 16 parts of magnesium aluminum silicate, 0.8 part of sodium bisulfate and 4 parts of asbestos fiber.
Wherein the asbestos fibers have a diameter of 1.2mm and a length of 80 mm.
Example 4
A production process of an environment-friendly brick made of slag comprises the following steps:
1) uniformly mixing slag, portland cement, broken stone and water according to a weight ratio of 4:6:2:5, crushing, sieving with a 80-mesh sieve, and stirring at a rotating speed of 400r/min for 12min to obtain slurry I;
2) adding an additive with the total weight of 7% into the slurry I obtained in the step 1), and stirring for 25min at the rotating speed of 700r/min to obtain a slurry II;
3) adding ethylene glycol distearate accounting for 1.5 percent of the total weight into the slurry II obtained in the step 2), and stirring for 40min at the rotating speed of 450r/min to obtain a mixture;
4) pouring the mixture obtained in the step 3) into a mold, drying the obtained module at 70 ℃, and standing for 7 days.
Wherein the stirring temperature in the step 3) is 55 ℃.
Wherein the additive in the step 2) comprises the following raw materials in parts by weight: 15 parts of quicklime, 25 parts of expanded perlite, 25 parts of porous ceramsite, 12 parts of polyurethane, 20 parts of phenolic resin, 12 parts of magnesium aluminum silicate, 0.6 part of sodium bisulfate and 3 parts of asbestos fiber.
Wherein the asbestos fibers have a diameter of 0.9mm and a length of 65 mm.
Example 5
A production process of an environment-friendly brick made of slag comprises the following steps:
1) uniformly mixing slag, portland cement, broken stone and water according to a weight ratio of 4:6:2:5, crushing, sieving with a 80-mesh sieve, and stirring at a rotating speed of 400r/min for 12min to obtain slurry I;
2) adding an additive with the total weight of 7% into the slurry I obtained in the step 1), and stirring for 25min at the rotating speed of 700r/min to obtain a slurry II;
3) adding ethylene glycol distearate accounting for 1.5 percent of the total weight into the slurry II obtained in the step 2), and stirring for 40min at the rotating speed of 450r/min to obtain a mixture;
4) pouring the mixture obtained in the step 3) into a mold, carrying out pressure molding, drying the module obtained after pressure molding at 70 ℃, and standing for 7 days.
Wherein the stirring temperature in the step 3) is 55 ℃.
Wherein the pressure forming pressure in the step 4) is 70 MPa.
Wherein the additive in the step 2) comprises the following raw materials in parts by weight: 15 parts of quicklime, 25 parts of expanded perlite, 25 parts of porous ceramsite, 20 parts of phenolic resin, 12 parts of magnesium aluminum silicate and 0.6 part of sodium bisulfate.
The invention effectively utilizes the slag, improves the economic benefit, reduces the pollution to the environment, and the prepared environment-friendly brick has lower heat conductivity coefficient under the combined action of various raw materials, can effectively isolate heat, plays a role in heat preservation, and avoids the heat loss from indoor high temperature conduction to indoor in summer or indoor in winter; the environment-friendly brick has low volume water absorption and good waterproof performance, and can avoid indoor moisture regain when being used as a building material.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The production process of the environment-friendly brick made of slag is characterized by comprising the following steps of:
1) uniformly mixing slag, portland cement, broken stone and water according to the weight ratio of (3-5) to (4-8) to (1-3) to (3-6), sieving with a 50-100 mesh sieve after crushing, and stirring for 10-15min under the condition of the rotating speed of 500r/min at 300-;
2) adding an additive with the total weight of 5-10% into the slurry I obtained in the step 1), and stirring for 20-30min at the rotating speed of 600-800r/min to obtain a slurry II;
3) adding ethylene glycol distearate with the total weight of 1-2% into the slurry II obtained in the step 2), and stirring for 30-50min at the rotating speed of 300-600r/min to obtain a mixture;
4) pouring the mixture obtained in the step 3) into a mold, carrying out pressure molding, drying the module obtained after pressure molding at the temperature of 60-80 ℃, and standing for 5-10 days.
2. The process for producing an eco-brick from slag according to claim 1, wherein the stirring temperature in the step 3) is 50 to 60 ℃.
3. The process for producing an eco-brick from slag according to claim 1, wherein the pressure molding pressure in the step 4) is 60 to 80 MPa.
4. The process for producing environment-friendly slag brick according to claim 1, wherein the additive in the step 2) comprises the following raw materials in parts by weight: 10-20 parts of quicklime, 20-30 parts of expanded perlite, 20-30 parts of porous ceramsite, 10-15 parts of polyurethane, 15-25 parts of phenolic resin, 8-16 parts of magnesium aluminum silicate, 0.4-0.8 part of sodium bisulfate and 2-4 parts of asbestos fiber.
5. The process for producing environment-friendly slag brick according to claim 4, wherein the additive in the step 2) comprises the following raw materials in parts by weight: 15 parts of quicklime, 25 parts of expanded perlite, 25 parts of porous ceramsite, 12 parts of polyurethane, 20 parts of phenolic resin, 12 parts of magnesium aluminum silicate, 0.6 part of sodium bisulfate and 3 parts of asbestos fiber.
6. The process for producing an eco-friendly slag brick according to claim 4, wherein the asbestos fiber has a diameter of 0.6 to 1.2mm and a length of 50 to 80 mm.
7. Use of the process for producing an environmentally friendly slag brick according to any one of claims 1 to 6 for the production of a thermal insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910252045.0A CN110981326A (en) | 2019-03-29 | 2019-03-29 | Production process of environment-friendly brick made of slag |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910252045.0A CN110981326A (en) | 2019-03-29 | 2019-03-29 | Production process of environment-friendly brick made of slag |
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| CN110981326A true CN110981326A (en) | 2020-04-10 |
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| CN201910252045.0A Pending CN110981326A (en) | 2019-03-29 | 2019-03-29 | Production process of environment-friendly brick made of slag |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107056152A (en) * | 2017-03-29 | 2017-08-18 | 合肥天沃能源科技有限公司 | A kind of energy-saving building brick and preparation method thereof |
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- 2019-03-29 CN CN201910252045.0A patent/CN110981326A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107056152A (en) * | 2017-03-29 | 2017-08-18 | 合肥天沃能源科技有限公司 | A kind of energy-saving building brick and preparation method thereof |
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Application publication date: 20200410 |