CN112408924A - Comprehensive slag resource utilization formula and process - Google Patents
Comprehensive slag resource utilization formula and process Download PDFInfo
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- CN112408924A CN112408924A CN202011077537.XA CN202011077537A CN112408924A CN 112408924 A CN112408924 A CN 112408924A CN 202011077537 A CN202011077537 A CN 202011077537A CN 112408924 A CN112408924 A CN 112408924A
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- added
- slag
- materials
- solid waste
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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
- C04B28/08—Slag cements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a comprehensive slag resource utilization formula and a process, which are characterized by comprising the following components: the brick comprises slag, other solid waste materials or natural sandstone materials, a cementing material, a coagulant and water, wherein the adding proportion of the slag is 50-60%, the adding proportion of the other solid waste materials or natural sandstone materials is 25-35%, the adding proportion of the cement is 7%, the adding proportion of the special coagulant PLD-NGJ-03 is 0.2%, and the adding proportion of the water is 7.8%.
Description
Technical Field
The invention relates to the technical field of furnace slag, in particular to a comprehensive resource utilization formula and a comprehensive resource utilization process for furnace slag.
Background
The slag is also called as dissolving slag. The melt floating on the surface of liquid material such as metal generated in the pyrometallurgical process is mainly composed of oxides (silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide), and also contains sulfides and carries a small amount of metal to obtain solid residue called slag or furnace ash after the coal gas producer gasifies the raw material coal. The chemical composition and mineral composition of the obtained slag are different due to different coal types and gasification modes, but the chemical composition of the slag mainly comprises compounds of silicon, aluminum, iron and calcium, and the slag contains small amounts of compounds of magnesium, titanium, potassium, copper, phosphorus and the like and trace cyanide, and the main forms of the slag exist are acid salt, aluminosilicate, oxide and sulfate.
The furnace slag has wide application, such as replacing natural crushed stone as concrete aggregate, highway subgrade, railway ballast, foundation cushion and the like, and can be made into slag wool, expanded balls, cast stone and microcrystalline glass; in agriculture, the slag can be used for improving soil or as fertilizer, and the slag can be changed into valuables by changing the slag form and grinding the slag into powder by a grinding machine, so that the slag can be recycled.
The components of the slag are adjusted by adding proper amount of flux (lime, quartz, fluorite, etc.). During the smelting process, the components and properties of the slag are controlled, so that gangue and oxidized impurity products can be smoothly separated from molten metal or sulfur, harmful impurities in the metal are removed, non-metallic inclusions in the liquid metal are absorbed, the liquid metal is not directly polluted by furnace gas, and useful metal oxides are enriched; it is also a resistance heating element in electric furnace smelting. The slag plays a decisive role in ensuring smooth smelting operation, quality of smelting products, metal recovery rate and the like, for example, the method of smelting steel after slag is refined is used in steelmaking operation.
According to different metallurgical processes, the furnace slag can be divided into smelting slag, refining slag and synthetic slag; the slag includes alkaline slag, acid slag and neutral slag according to its properties. Many slags have significant utility. For example, blast furnace slag can be used as a cement raw material; the high phosphorus slag can be used as fertilizer; the vanadium-containing slag and the titanium-containing slag can be respectively used as raw materials for extracting vanadium and titanium, and the like. Some slags can be used to make slag cement, slag brick, slag glass, etc.
The smelt of coal in the boiler combustion chamber consists of coal ash. Can be used as raw materials of bricks, tiles and the like.
Disclosure of Invention
The invention aims to provide a comprehensive slag resource utilization formula and a comprehensive slag resource utilization process, which aim to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the first scheme is as follows: a comprehensive slag resource utilization formula comprises: slag, other solid waste materials or natural sandstone materials, a cementing material, a coagulant and water;
the adding proportion of the slag is 70-80%;
the adding proportion of the other solid waste materials or the natural sandstone materials is 5-15%;
the adding proportion of the cement is 7%;
the adding proportion of the special coagulant PLD-NGJ-03 is 0.2%;
the proportion of water added was 7.8%.
Further, the adding proportion of the slag is 71-79%, the adding proportion of other solid waste materials or natural sand materials is 6-14%, the adding proportion of the cement is 7%, the adding proportion of the special coagulant PLD-NGJ-03 is 0.2%, and the adding proportion of the water is 7.8%.
Further, the adding proportion of the slag is 72-78%, the adding proportion of other solid waste materials or natural sand materials is 7-13%, the adding proportion of cement is 7%, the adding proportion of the special coagulant PLD-NGJ-03 is 0.2%, and the adding proportion of water is 7.8%.
Further, the adding proportion of the slag is 73-77%, the adding proportion of other solid waste materials or natural sand materials is 8-12%, the adding proportion of the cement is 7%, the adding proportion of the special coagulant PLD-NGJ-03 is 0.2%, and the adding proportion of the water is 7.8%.
Further, the adding proportion of the slag is 74-76%, the adding proportion of the other solid waste materials or natural sand materials is 9-11%, the adding proportion of the cement is 7%, the adding proportion of the special coagulant PLD-NGJ-03 is 0.2%, and the adding proportion of the water is 7.8%.
Further, the adding proportion of the slag is 75%, the adding proportion of other solid waste materials or natural sand materials is 10%, the adding proportion of the cement is 7%, the adding proportion of the special coagulant PLD-NGJ-03 is 0.2%, and the adding proportion of the water is 7.8%.
Scheme II: a comprehensive slag resource utilization process comprises the following steps:
and (3) screening:
the slag is measured and mixed according to the proportion, and then is screened from an automatic screening machine through a primary conveying system;
mixing process:
conveying the screened raw materials to a novel stirrer system, automatically metering and adding other solid waste materials or natural sand and stone materials, cement, a special coagulant PLD-NGJ-03 type and water into the stirrer by the system according to a set proportion, fully mixing, stirring the raw materials by high-speed operation, conveying the raw materials to a forming main machine through a conveyor, and conveying the raw materials to a distributing machine material box;
and (3) demolding: after the material is uniformly distributed to a die box of the die by the material distributing machine, the material is molded by the vibration excitation and the pressure of the main machine;
and (3) forming: the finished bricks are dragged by the outward moving oil cylinder to move outwards together with a mould box pressure head to the stacking lifting platform, the pressure head is lifted up and demoulded for forming in a static mould cavity, the forming machine is reset at the same time, and the rotary stacking lifting machine is descended to a conveyor to discharge bricks after stacking 4-6 layers of bricks.
Compared with the prior art, the invention has the following beneficial effects:
(1) the slag brick has good moisture-proof effect, and the slag brick can play the role of heat preservation and the like. The slag has porosity (like foam and cotton) and can block heat conduction and radiation, so that the slag has certain heat preservation performance;
(2) saving farmland and supporting agriculture. The furnace slag brickyard with 5000 ten thousand blocks produced every year is built, 50 mu of farmland can be saved every year, the yield of grain is increased by about 4 ten thousand jin, and the agricultural and industrial construction is effectively supported;
(3) the factory layout is compact, and the production period is short;
(4) roasting is not needed, and only steam for maintenance is needed, so that the fuel consumption is low, and the pollution to the atmosphere is reduced;
(5) the degree of mechanization and automation is higher, the labor productivity is high, and the labor intensity of workers is low;
(6) the production is not affected by seasons and climate and can be produced all year round;
(7) the product has light volume weight and small heat conductivity coefficient, and is beneficial to improving the building function and reducing the building cost.
Detailed Description
Technical solutions in embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Comprehensive slag resource utilization formula
The first embodiment is as follows: the slag is added in a proportion of 71-79%, the other solid waste materials or natural sandstone materials are added in a proportion of 6-14%, the cement is added in a proportion of 7%, the special coagulant PLD-NGJ-03 is added in a proportion of 0.2%, and the water is added in a proportion of 7.8%.
The second embodiment: the adding proportion of the slag is 72-78%, the adding proportion of other solid waste materials or natural sand materials is 7-13%, the adding proportion of the cement is 7%, the adding proportion of the special coagulant PLD-NGJ-03 is 0.2%, and the adding proportion of the water is 7.8%.
The third embodiment is as follows: the slag is added in a proportion of 73-77%, the other solid waste materials or natural sand materials are added in a proportion of 8-12%, the cement is added in a proportion of 7%, the special coagulant PLD-NGJ-03 is added in a proportion of 0.2%, and the water is added in a proportion of 7.8%.
The fourth embodiment is as follows: the slag adding proportion is 74-76%, the adding proportion of other solid waste materials or natural sandstone materials is 9-11%, the adding proportion of cement is 7%, the adding proportion of the special coagulant PLD-NGJ-03 is 0.2%, and the adding proportion of water is 7.8%.
The fifth embodiment: the adding proportion of the slag is 75%, the adding proportion of other solid waste materials or natural sand materials is 10%, the adding proportion of the cement is 7%, the adding proportion of the special coagulant PLD-NGJ-03 is 0.2%, and the adding proportion of the water is 7.8%.
A comprehensive slag resource utilization process comprises the following steps:
and (3) screening:
the slag is measured and mixed according to the proportion, and then is screened from an automatic screening machine through a primary conveying system;
mixing process:
conveying the screened raw materials to a novel stirrer system, automatically metering and adding other solid waste materials or natural sand and stone materials, cement, a special coagulant PLD-NGJ-03 type and water into the stirrer by the system according to a set proportion, fully mixing, stirring the raw materials by high-speed operation, conveying the raw materials to a forming main machine through a conveyor, and conveying the raw materials to a distributing machine material box;
and (3) demolding: after the material is uniformly distributed to a die box of the die by the material distributing machine, the material is molded by the vibration excitation and the pressure of the main machine;
and (3) forming: the finished bricks are dragged by the outward moving oil cylinder to move outwards together with a mould box pressure head to the stacking lifting platform, the pressure head is lifted up and demoulded for forming in a static mould cavity, the forming machine is reset at the same time, and the rotary stacking lifting machine is descended to a conveyor to discharge bricks after stacking 4-6 layers of bricks.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The comprehensive slag resource utilization formula is characterized by comprising the following components: slag, other solid waste materials or natural sandstone materials, cementitious materials, coagulants and water:
the adding proportion of the slag is 70-80%;
the adding proportion of the other solid waste materials or the natural sandstone materials is 5-15%;
the adding proportion of the cement is 7%;
the adding proportion of the special coagulant PLD-NGJ-03 is 0.2%;
the proportion of water added was 7.8%.
2. The comprehensive slag resource utilization formula according to claim 1, wherein the slag is added in a proportion of 71-79%, the other solid waste materials or natural sand materials are added in a proportion of 6-14%, the cement is added in a proportion of 7%, the special coagulant PLD-NGJ-03 is added in a proportion of 0.2%, and the water is added in a proportion of 7.8%.
3. The comprehensive slag resource utilization formula according to claim 1, wherein the slag is added in a proportion of 72-78%, the other solid waste materials or natural sand materials are added in a proportion of 7-13%, the cement is added in a proportion of 7%, the special coagulant PLD-NGJ-03 is added in a proportion of 0.2%, and the water is added in a proportion of 7.8%.
4. The comprehensive slag resource utilization formula according to claim 1, wherein the slag is added in a proportion of 73-77%, the other solid waste materials or natural sand materials are added in a proportion of 8-12%, the cement is added in a proportion of 7%, the special coagulant PLD-NGJ-03 is added in a proportion of 0.2%, and the water is added in a proportion of 7.8%.
5. The comprehensive slag resource utilization formula according to claim 1, wherein the slag is added in a proportion of 74-76%, the other solid waste materials or natural sandstone materials are added in a proportion of 9-11%, the cement is added in a proportion of 7%, the special coagulant PLD-NGJ-03 is added in a proportion of 0.2%, and the water is added in a proportion of 7.8%.
6. The comprehensive slag resource utilization formula according to claim 1, wherein the slag is added in a proportion of 75%, the other solid waste materials or natural sand materials are added in a proportion of 10%, the cement is added in a proportion of 7%, the special coagulant PLD-NGJ-03 is added in a proportion of 0.2%, and the water is added in a proportion of 7.8%.
7. The comprehensive slag resource utilization process according to claim 1, comprising:
and (3) screening:
the slag is measured and mixed according to the proportion, and then is screened from an automatic screening machine through a primary conveying system;
mixing process:
conveying the screened raw materials to a novel stirrer system, automatically metering and adding other solid waste materials or natural sand and stone materials, cement, a special coagulant PLD-NGJ-03 type and water into the stirrer by the system according to a set proportion, fully mixing, stirring the raw materials by high-speed operation, conveying the raw materials to a forming main machine through a conveyor, and conveying the raw materials to a distributing machine material box;
and (3) demolding: after the material is uniformly distributed to a die box of the die by the material distributing machine, the material is molded by the vibration excitation and the pressure of the main machine;
and (3) forming: the finished bricks are dragged by the outward moving oil cylinder to move outwards together with a mould box pressure head to the stacking lifting platform, the pressure head is lifted up and demoulded for forming in a static mould cavity, the forming machine is reset at the same time, and the rotary stacking lifting machine is descended to a conveyor to discharge bricks after stacking 4-6 layers of bricks.
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| CN202011077537.XA CN112408924A (en) | 2020-10-10 | 2020-10-10 | Comprehensive slag resource utilization formula and process |
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| CN202011077537.XA CN112408924A (en) | 2020-10-10 | 2020-10-10 | Comprehensive slag resource utilization formula and process |
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| CN112408924A true CN112408924A (en) | 2021-02-26 |
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| CN202011077537.XA Pending CN112408924A (en) | 2020-10-10 | 2020-10-10 | Comprehensive slag resource utilization formula and process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113372070A (en) * | 2021-07-16 | 2021-09-10 | 西安建筑科技大学 | Self-compacting concrete for floor heating protective layer and preparation method thereof |
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| JPH11237026A (en) * | 1998-02-23 | 1999-08-31 | Ishikawajima Harima Heavy Ind Co Ltd | Ash melting furnace |
| CN1251357A (en) * | 1999-09-16 | 2000-04-26 | 梁庆华 | Concrete brick produced by utilizing foundry of waste sand |
| KR20130134415A (en) * | 2012-05-31 | 2013-12-10 | 주식회사 씨엠디기술단 | Environment-frendly loess brick and manufacturing method by the same |
| CN107663100A (en) * | 2017-09-27 | 2018-02-06 | 武汉钢铁有限公司 | Water-permeable brick prepared using molten blast furnace slag and preparation method thereof |
| CN108840635A (en) * | 2018-08-28 | 2018-11-20 | 马宇 | A kind of formula and preparation method that solid waste clinker is fabricated to no-firing brick |
| CN111574146A (en) * | 2020-04-20 | 2020-08-25 | 浙江大学 | Method for preparing industrial solid waste base baking-free brick by combining composite cementing material with carbonation curing technology |
| CN111908895A (en) * | 2020-08-11 | 2020-11-10 | 中环投(山东)环境科技有限公司 | Comprehensive resource utilization formula and process for converter steel slag |
-
2020
- 2020-10-10 CN CN202011077537.XA patent/CN112408924A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11237026A (en) * | 1998-02-23 | 1999-08-31 | Ishikawajima Harima Heavy Ind Co Ltd | Ash melting furnace |
| CN1251357A (en) * | 1999-09-16 | 2000-04-26 | 梁庆华 | Concrete brick produced by utilizing foundry of waste sand |
| KR20130134415A (en) * | 2012-05-31 | 2013-12-10 | 주식회사 씨엠디기술단 | Environment-frendly loess brick and manufacturing method by the same |
| CN107663100A (en) * | 2017-09-27 | 2018-02-06 | 武汉钢铁有限公司 | Water-permeable brick prepared using molten blast furnace slag and preparation method thereof |
| CN108840635A (en) * | 2018-08-28 | 2018-11-20 | 马宇 | A kind of formula and preparation method that solid waste clinker is fabricated to no-firing brick |
| CN111574146A (en) * | 2020-04-20 | 2020-08-25 | 浙江大学 | Method for preparing industrial solid waste base baking-free brick by combining composite cementing material with carbonation curing technology |
| CN111908895A (en) * | 2020-08-11 | 2020-11-10 | 中环投(山东)环境科技有限公司 | Comprehensive resource utilization formula and process for converter steel slag |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113372070A (en) * | 2021-07-16 | 2021-09-10 | 西安建筑科技大学 | Self-compacting concrete for floor heating protective layer and preparation method thereof |
| CN113372070B (en) * | 2021-07-16 | 2023-03-17 | 西安建筑科技大学 | Self-compacting concrete for floor heating protective layer and preparation method thereof |
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