CN114956841A - Magnesium-calcium-carbon brick for refining prepared from magnesium-calcium waste brick and preparation method thereof - Google Patents
Magnesium-calcium-carbon brick for refining prepared from magnesium-calcium waste brick and preparation method thereof Download PDFInfo
- Publication number
- CN114956841A CN114956841A CN202210696746.5A CN202210696746A CN114956841A CN 114956841 A CN114956841 A CN 114956841A CN 202210696746 A CN202210696746 A CN 202210696746A CN 114956841 A CN114956841 A CN 114956841A
- Authority
- CN
- China
- Prior art keywords
- calcium
- magnesia
- brick
- waste
- particle
- 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.)
- Withdrawn
Links
Images
Classifications
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3826—Silicon carbides
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
- C04B2235/425—Graphite
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention provides a magnesia-calcium-carbon brick for refining prepared from magnesia-calcium waste bricks, a preparation method thereof and the technical field of production of refractory materials. The magnesia-calcium-carbon brick for refining prepared from the magnesia-calcium waste brick and the preparation method thereof comprise the following raw materials in parts by weight: 30-35 parts of coarse-particle magnesia-calcium waste bricks, 10-16 parts of fine-particle magnesia-calcium waste bricks, 12-28 parts of coarse-particle magnesia-calcium waste brick eluate, 1-2 parts of silicon carbide nano powder, 1-2 parts of graphite powder, 1 part of a bonding agent and 1 part of a powdery nano waterproof agent; the particle size of the coarse-particle magnesia-calcium waste brick is 4-6mm, and the particle size of the fine-particle magnesia-calcium waste brick is less than 4 mm. Through smashing into two kinds of different particle size raw materials with the useless brick of magnesium calcium, the useless brick of coarse grain magnesium calcium is as main body skeleton after the refining, and the gap between the adhesion is filled to the useless brick of fine grain magnesium calcium, can guarantee the whole quality of magnesium calcium carbon brick, need not smash into powder with all useless bricks of magnesium calcium moreover, can reduce shredding's work load, realizes improving production efficiency, reduces the refining cost.
Description
Technical Field
The invention relates to the technical field of production of refractory materials, in particular to a magnesia-calcium-carbon brick for refining prepared from waste magnesia-calcium bricks and a preparation method thereof.
Background
At present, most of non-slag line parts used for the ladle wall of the domestic ladle are aluminum-magnesium-carbon unburned bricks, the bricks are developed earlier and are various, but molten steel is easy to pollute in the using process, and along with the improvement of the requirement of industrial steel, more and more magnesia-calcium-carbon bricks are selected and used, so that the demand of the magnesia-calcium-carbon bricks is increased day by day.
The magnesia-calcium brick is also called high-calcium magnesia brick, which is a magnesia refractory material taking periclase as a main crystal phase and tricalcium silicate as a secondary crystal phase, the raw materials of the magnesia-calcium refractory material are quite similar to those of magnesia-calcium-carbon bricks, the production capacity of the magnesia-calcium brick in the last century is very large, and the magnesia-calcium-carbon brick is most suitable for producing the magnesia-calcium-carbon brick, but the existing refining process is relatively laggard, the refining cost is relatively high, and the quality of the magnesia-calcium-carbon brick refined by the waste magnesia-calcium brick cannot be guaranteed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a magnesia-calcium-carbon brick prepared from waste magnesia-calcium bricks for refining and a preparation method thereof, which solve the problems that the existing refining process is relatively backward, the refining cost is relatively high, and the quality of the magnesia-calcium-carbon brick refined from the waste magnesia-calcium bricks cannot be guaranteed.
(II) technical scheme
In order to realize the purpose, the invention is realized by the following technical scheme: a magnesia-calcium-carbon brick for refining prepared from magnesia-calcium waste bricks comprises the following raw materials in parts by weight: 30-35 parts of coarse-particle magnesia-calcium waste bricks, 10-16 parts of fine-particle magnesia-calcium waste bricks, 12-28 parts of coarse-particle magnesia-calcium waste brick eluate, 1-2 parts of silicon carbide nano powder, 1-2 parts of graphite powder, 1 part of a bonding agent and 1 part of a powdery nano waterproof agent;
the particle size of the coarse-particle magnesia-calcium waste brick is 4-6mm, and the particle size of the fine-particle magnesia-calcium waste brick is less than 4 mm.
Preferably, the mass sum of the silicon carbide nano powder and the graphite powder is not less than 3% of the total mass of the solid raw materials, and the mass of the bonding agent is not less than 1.5% of the total mass of the solid raw materials.
A preparation method for preparing a magnesia-calcium-carbon brick for refining by using magnesia-calcium waste bricks comprises the following steps:
s1, washing the collected waste magnesia-calcium bricks to remove soil and dust adhered to the surfaces;
s2, crushing the washed waste magnesia-calcium bricks, and passing through an upper layer and a lower layer of filter plates to obtain coarse-particle waste magnesia-calcium bricks on the upper layer and fine-particle waste magnesia-calcium bricks on the lower layer;
s3, placing the obtained coarse-particle magnesia-calcium waste brick into a container filled with tap water for soaking, completely soaking the coarse-particle magnesia-calcium waste brick solid into the tap water, and stirring for 10-25 min;
s4, pouring tap water mixed with coarse-particle magnesium-calcium waste bricks, fine-particle magnesium-calcium waste bricks, silicon carbide nano powder and graphite powder into a mixing roll to be uniformly mixed, adding a bonding agent and a powdery nano waterproof agent to be mixed for 45 minutes, and rolling and pressing the mixture into a blank;
s5, the blank is sent into a kiln to be heated to 250-300 ℃ for roasting for 8 hours to obtain the finished product brick.
Preferably, the mass ratio of the tap water to the coarse-particle magnesium-calcium waste brick is 1: 1.5-2.5.
Preferably, the method further comprises the following steps: and transferring the fine-particle magnesium calcium waste brick into a grinding machine for grinding to enable the particle size of the fine-particle magnesium calcium waste brick to be smaller than 2mm, wherein the finer the particle size of the fine-particle magnesium calcium waste brick is ground, the fewer pores in the magnesium calcium carbon brick body are obtained, and the quality of the magnesium calcium carbon brick can be improved.
Preferably, the method further comprises the following steps: and transferring the fine-particle magnesium calcium waste brick into a grinding machine for grinding to ensure that the particle size of the fine-particle magnesium calcium waste brick is less than 1.5 mm.
Preferably, the method further comprises the following steps: the blank is pre-dried in the kiln for 2 hours at 200 ℃ before being sent into the kiln, and the initial temperature of the temperature rise process is 200 ℃, so that the temperature rise process is shortened, the temperature of the magnesia-calcium-carbon brick drying process is easier to control, and the aim is to improve the quality of the magnesia-calcium-carbon brick.
(III) advantageous effects
The invention provides a magnesia-calcium-carbon brick for refining prepared from waste magnesia-calcium bricks and a preparation method thereof. The method has the following beneficial effects:
1. according to the invention, the waste magnesia-calcium bricks are crushed into two raw materials with different particle sizes, the refined waste magnesia-calcium bricks with coarse particles are used as main frameworks, and the fine-particle waste magnesia-calcium bricks are used for filling gaps between the binding layers, so that the overall quality of the magnesia-calcium-carbon bricks can be ensured, and all the waste magnesia-calcium bricks are not required to be crushed into powder, so that the workload of crushing processing can be reduced, the production efficiency is improved, and the refining cost is reduced.
2. In the invention, tap water is adopted to soak and stir the coarse-particle magnesia-calcium waste bricks, so that powder and chapped small particles (generated in the crushing process) remained on the surfaces of the coarse-particle magnesia-calcium waste bricks are dispersed or deposited in the tap water, and the overall quality of the magnesia-calcium-carbon bricks is further improved.
Drawings
FIG. 1 is a schematic view showing a crushed state of a waste magnesia-calcium brick.
Wherein, A, coarse particle magnesium calcium waste brick; B. fine-particle magnesium calcium waste brick.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
The first embodiment is as follows:
the embodiment of the invention provides a magnesia-calcium-carbon brick for refining by using waste magnesia-calcium bricks, which comprises the following raw materials in parts by weight: 30 parts of coarse-particle magnesia-calcium waste bricks, 10 parts of fine-particle magnesia-calcium waste bricks, 12 parts of eluate of the coarse-particle magnesia-calcium waste bricks, 1 part of silicon carbide nano powder, 1 part of graphite powder, 1 part of a bonding agent and 1 part of a powdery nano waterproof agent;
the particle size of the coarse-particle magnesia-calcium waste brick is 4-6mm, and the particle size of the fine-particle magnesia-calcium waste brick is less than 4 mm.
The mass sum of the silicon carbide nano powder and the graphite powder is not less than 3% of the total mass of the solid raw materials, so that the carbon content in the magnesia-calcium-carbon brick is ensured, the mass of the bonding agent is not less than 1.5% of the total mass of the solid raw materials, and the sufficient bonding strength is ensured.
Example two:
the embodiment of the invention provides a magnesia-calcium-carbon brick for refining by using waste magnesia-calcium bricks, which comprises the following raw materials in parts by weight: 35 parts of coarse-particle magnesia-calcium waste bricks, 16 parts of fine-particle magnesia-calcium waste bricks, 28 parts of coarse-particle magnesia-calcium waste brick eluate, 2 parts of silicon carbide nano powder, 2 parts of graphite powder, 1 part of a bonding agent and 1 part of a powdery nano waterproof agent;
the particle size of the coarse-particle magnesia-calcium waste brick is 4-6mm, and the particle size of the fine-particle magnesia-calcium waste brick is less than 4 mm.
The sum of the mass of the silicon carbide nano powder and the graphite powder is not less than 3% of the total mass of the solid raw materials, so that the carbon content in the magnesia-calcium-carbon brick is ensured, and the mass of the bonding agent is not less than 1.5% of the total mass of the solid raw materials, so that the sufficient bonding strength is ensured.
Example three:
a preparation method for preparing a magnesia-calcium-carbon brick for refining by using magnesia-calcium waste bricks comprises the following steps:
s1, washing the collected waste magnesia-calcium bricks to remove soil and dust adhered to the surfaces;
s2, crushing the washed waste magnesia-calcium bricks, and passing through an upper layer and a lower layer of filter plates to obtain an upper layer of coarse-particle waste magnesia-calcium bricks A and a lower layer of fine-particle waste magnesia-calcium bricks B;
s3, soaking the obtained coarse-particle magnesia-calcium waste brick in a container containing tap water, wherein the mass ratio of the tap water to the coarse-particle magnesia-calcium waste brick is 1: 1.5, completely soaking the coarse-particle magnesium-calcium waste brick solid in tap water, and stirring for 10-25 min;
s4, pouring tap water mixed with coarse-particle magnesium calcium waste bricks, fine-particle magnesium calcium waste bricks, silicon carbide nano powder and graphite powder into a mixing mill to be mixed uniformly, adding a bonding agent and a powdery nano waterproof agent to be mixed for 45 minutes, and rolling and pressing the mixture into a blank;
s5, pre-drying the blank in the kiln at 200 ℃ for 2h before feeding the blank into the kiln, and then feeding the blank into the kiln, heating to 250 ℃ and 300 ℃ for roasting for 8 h to obtain the finished brick.
Example four:
the difference from the third embodiment is that: and transferring the fine-particle magnesium calcium waste brick into a grinding machine for grinding to ensure that the particle size of the fine-particle magnesium calcium waste brick is less than 2 mm.
Example five:
the difference from the third embodiment is that: and transferring the fine-particle magnesium calcium waste brick into a grinding machine for grinding to ensure that the particle size of the fine-particle magnesium calcium waste brick is less than 1.5 mm.
The raw materials in the first and second examples are respectively manufactured into magnesia-calcium-carbon bricks by the methods of the third, fourth and fifth examples, and the following table parameters are obtained:
although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The method for preparing the magnesia-calcium-carbon brick for refining by using the magnesia-calcium waste brick is characterized by comprising the following raw materials in parts by weight: 30-35 parts of coarse-particle magnesia-calcium waste bricks, 10-16 parts of fine-particle magnesia-calcium waste bricks, 12-28 parts of coarse-particle magnesia-calcium waste brick eluate, 1-2 parts of silicon carbide nano powder, 1-2 parts of graphite powder, 1 part of a bonding agent and 1 part of a powdery nano waterproof agent;
the particle size of the coarse-particle magnesia-calcium waste brick is 4-6mm, and the particle size of the fine-particle magnesia-calcium waste brick is less than 4 mm.
2. The method for preparing the magnesia-calcium-carbon brick for refining by using the waste magnesia-calcium brick according to claim 1 is characterized in that: the mass sum of the silicon carbide nano powder and the graphite powder is not less than 3% of the total mass of the solid raw materials, and the mass of the bonding agent is not less than 1.5% of the total mass of the solid raw materials.
3. The method for preparing the magnesia-calcium-carbon brick for refining by using the magnesia-calcium waste brick according to claim 1 or 2, which is characterized by comprising the following steps:
s1, washing the collected waste magnesia-calcium bricks to remove soil and dust adhered to the surfaces;
s2, crushing the washed waste magnesia-calcium bricks, and passing through an upper layer and a lower layer of filter plates to obtain coarse-particle waste magnesia-calcium bricks on the upper layer and fine-particle waste magnesia-calcium bricks on the lower layer;
s3, placing the obtained coarse-particle magnesia-calcium waste brick into a container filled with tap water for soaking, completely soaking the coarse-particle magnesia-calcium waste brick solid into the tap water, and stirring for 10-25 min;
s4, pouring tap water mixed with coarse-particle magnesium-calcium waste bricks, fine-particle magnesium-calcium waste bricks, silicon carbide nano powder and graphite powder into a mixing roll to be uniformly mixed, adding a bonding agent and a powdery nano waterproof agent to be mixed for 45 minutes, and rolling and pressing the mixture into a blank;
s5, the blank is sent into a kiln to be heated to 250-300 ℃ for roasting for 8 hours to obtain the finished product brick.
4. The method for preparing the magnesia-calcium-carbon brick for refining by using the magnesia-calcium waste brick according to claim 3, which is characterized by comprising the following steps: the mass ratio of the tap water to the coarse-particle magnesia-calcium waste bricks is 1: 1.5-2.5.
5. The method for preparing the magnesia-calcium-carbon brick for refining by using the magnesia-calcium waste brick according to claim 3, further comprising: and transferring the fine-particle magnesium calcium waste brick into a grinder for grinding to ensure that the particle size of the fine-particle magnesium calcium waste brick is less than 2 mm.
6. The method for preparing the magnesia-calcium-carbon brick for refining by using the waste magnesia-calcium brick according to claim 3, further comprising the following steps: and transferring the fine-particle magnesium calcium waste brick into a grinding machine for grinding to ensure that the particle size of the fine-particle magnesium calcium waste brick is less than 1.5 mm.
7. The method for preparing the magnesia-calcium-carbon brick for refining by using the waste magnesia-calcium brick according to claim 3, further comprising the following steps: the blank is pre-dried in the kiln for 2 hours at 200 ℃ before being sent into the kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210696746.5A CN114956841A (en) | 2022-06-20 | 2022-06-20 | Magnesium-calcium-carbon brick for refining prepared from magnesium-calcium waste brick and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210696746.5A CN114956841A (en) | 2022-06-20 | 2022-06-20 | Magnesium-calcium-carbon brick for refining prepared from magnesium-calcium waste brick and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114956841A true CN114956841A (en) | 2022-08-30 |
Family
ID=82963003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210696746.5A Withdrawn CN114956841A (en) | 2022-06-20 | 2022-06-20 | Magnesium-calcium-carbon brick for refining prepared from magnesium-calcium waste brick and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114956841A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11335718A (en) * | 1998-05-28 | 1999-12-07 | Toa Steel Co Ltd | Method for utilizing magnesia base waste brick |
| KR20030050533A (en) * | 2001-12-19 | 2003-06-25 | 주식회사 포스코 | A Method of Preparing Calcium-Magnesium Inorganic Fertilizer Made From Dolomite Waste Firebrick Of Steel Making |
| CN101333089A (en) * | 2008-08-06 | 2008-12-31 | 郑州振东耐磨材料有限公司 | Process for producing MgO-C Bricks by using waste MgO-C Bricks as main raw material |
| CN101333088A (en) * | 2008-08-06 | 2008-12-31 | 郑州振东耐磨材料有限公司 | Process for producing Al2O3-MgO-C Bricks by using waste Al2O3-MgO-C Bricks as main raw material |
| CN101439977A (en) * | 2008-12-25 | 2009-05-27 | 大石桥市金龙耐火材料有限公司 | High-calcium magnesia-calcium-carbon brick and manufacturing method thereof |
| CN103011853A (en) * | 2012-11-27 | 2013-04-03 | 浙江铭德新材科技有限公司 | Manufacturing method of magnesium-calcium regeneration brick |
| CN106542836A (en) * | 2016-11-03 | 2017-03-29 | 海城市中兴镁质合成材料有限公司 | A kind of EAF bottom ramming mass with useless magnesia-calcium brick as Material synthesis magnesium calcium iron ore |
| CN108191437A (en) * | 2018-01-17 | 2018-06-22 | 辽宁中镁控股股份有限公司 | A kind of nanometer of hydration-resisting unfired magnesia-calcium carbon brick and its manufacturing method |
| CN112062586A (en) * | 2020-09-24 | 2020-12-11 | 山东柯信新材料有限公司 | Production method of environment-friendly carbon-containing brick |
| CN113004023A (en) * | 2020-12-08 | 2021-06-22 | 合肥惠嘉耐火材料有限公司 | Environment-friendly refractory material and preparation method thereof |
-
2022
- 2022-06-20 CN CN202210696746.5A patent/CN114956841A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11335718A (en) * | 1998-05-28 | 1999-12-07 | Toa Steel Co Ltd | Method for utilizing magnesia base waste brick |
| KR20030050533A (en) * | 2001-12-19 | 2003-06-25 | 주식회사 포스코 | A Method of Preparing Calcium-Magnesium Inorganic Fertilizer Made From Dolomite Waste Firebrick Of Steel Making |
| CN101333089A (en) * | 2008-08-06 | 2008-12-31 | 郑州振东耐磨材料有限公司 | Process for producing MgO-C Bricks by using waste MgO-C Bricks as main raw material |
| CN101333088A (en) * | 2008-08-06 | 2008-12-31 | 郑州振东耐磨材料有限公司 | Process for producing Al2O3-MgO-C Bricks by using waste Al2O3-MgO-C Bricks as main raw material |
| CN101439977A (en) * | 2008-12-25 | 2009-05-27 | 大石桥市金龙耐火材料有限公司 | High-calcium magnesia-calcium-carbon brick and manufacturing method thereof |
| CN103011853A (en) * | 2012-11-27 | 2013-04-03 | 浙江铭德新材科技有限公司 | Manufacturing method of magnesium-calcium regeneration brick |
| CN106542836A (en) * | 2016-11-03 | 2017-03-29 | 海城市中兴镁质合成材料有限公司 | A kind of EAF bottom ramming mass with useless magnesia-calcium brick as Material synthesis magnesium calcium iron ore |
| CN108191437A (en) * | 2018-01-17 | 2018-06-22 | 辽宁中镁控股股份有限公司 | A kind of nanometer of hydration-resisting unfired magnesia-calcium carbon brick and its manufacturing method |
| CN112062586A (en) * | 2020-09-24 | 2020-12-11 | 山东柯信新材料有限公司 | Production method of environment-friendly carbon-containing brick |
| CN113004023A (en) * | 2020-12-08 | 2021-06-22 | 合肥惠嘉耐火材料有限公司 | Environment-friendly refractory material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2020103188A4 (en) | Concrete Containing Coal-to-liquids Coarse Slag and Preparation Method thereof | |
| CN107459364B (en) | High-strength ceramsite prepared by using yellow river sludge and sludge as binder and preparation method thereof | |
| CN109266847B (en) | Preparation method of low-temperature consolidated metallurgical pellets | |
| CN104387094B (en) | Technique recycled by a kind of steel-making refractory materials | |
| CN102557684A (en) | Silica brick for coke oven | |
| CN111253093A (en) | Cementing material containing coal-to-liquid coarse slag and preparation method thereof | |
| CN106747452A (en) | A kind of method that resistance furnace produces boron carbide ingot | |
| CN115259818A (en) | Method for preparing solid waste base high-performance concrete from tailings after iron separation of multi-element solid waste | |
| CN114105543A (en) | Preparation method of all-solid waste foam concrete | |
| CN104016601B (en) | The method that industrial residue sludge produces cement cementitious material | |
| CN112266235A (en) | Method for preparing dolomite brick from calcium-magnesium phosphate ore tailings and composite magnesium raw materials | |
| CN107473710A (en) | A kind of electroplating sludge that blends prepares the method that clay brick process improves heavy metals immobilization effect | |
| CN102367514B (en) | Mn-Fe composite pellet and preparation method thereof | |
| CN106495623B (en) | A method of steam-pressing brisk is prepared using molybdic tailing | |
| CN101020960B (en) | Pellet for smelting Al-Si alloy and its preparation method | |
| CN114956841A (en) | Magnesium-calcium-carbon brick for refining prepared from magnesium-calcium waste brick and preparation method thereof | |
| CN109336428B (en) | Preparation method of layered cement and MSWI bottom ash alkali-activated double-gelling system material | |
| CN115259817B (en) | Method for preparing foundation pit backfill by utilizing multi-element solid waste cooperation | |
| CN116675454A (en) | High-strength ceramsite based on industrial solid waste and preparation method thereof | |
| CN111003982A (en) | Ultrafine silica sand tailing powder autoclaved aerated concrete and preparation method thereof | |
| CN107793132B (en) | Ceramic tile based on ceramic polishing slag and preparation method thereof | |
| CN114058763B (en) | Preparation method of high-compressibility reduced iron powder | |
| CN115215625A (en) | Method for preparing mine filling material from tailings obtained after modification and iron extraction of iron-rich waste | |
| CN104069806A (en) | Rare earth loaded function material prepared from rare-earth tailings and preparation method of material | |
| CN1916196B (en) | Method for producing fine powder of magnetite from active iron ore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220830 |