CN116573943A - Anti-stripping castable for aramid fiber - Google Patents

Anti-stripping castable for aramid fiber Download PDF

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Publication number
CN116573943A
CN116573943A CN202310412715.7A CN202310412715A CN116573943A CN 116573943 A CN116573943 A CN 116573943A CN 202310412715 A CN202310412715 A CN 202310412715A CN 116573943 A CN116573943 A CN 116573943A
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China
Prior art keywords
castable
parts
aramid fiber
aggregate
stripping
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Pending
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CN202310412715.7A
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Chinese (zh)
Inventor
王超
刘云才
余金铭
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Jingmen Leifa Refractory Technology Co ltd
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Jingmen Leifa Refractory Technology Co ltd
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Priority to CN202310412715.7A priority Critical patent/CN116573943A/en
Publication of CN116573943A publication Critical patent/CN116573943A/en
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    • 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
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
    • C04B35/185—Mullite 3Al2O3-2SiO2
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
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    • 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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    • 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C04B2235/3218—Aluminium (oxy)hydroxides, e.g. boehmite, gibbsite, alumina sol
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    • 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
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    • 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
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    • 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
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    • 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
    • C04B2235/427—Diamond
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5212—Organic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The invention relates to the technical field of castable, and discloses an anti-stripping castable for aramid fiber, which comprises the following raw materials in parts by weight: 70-80 parts of aggregate, 4-6 parts of aramid fiber, 2-4 parts of diamond, 1-3 parts of silicon carbide particles, 2-4 parts of aluminum oxide, 1-3 parts of bauxite powder, 0.1-0.5 part of bonding agent and 0.1-0.5 part of composite dispersing agent. According to the anti-spalling castable for the aramid fiber, the mixture of coarse sand and mullite is used as aggregate, and the compounding agent formed by compounding aluminate cement, aluminum hydroxide micropowder and titanium pigment is added for compounding, so that the composition stability of the castable in the production process can be enhanced to the greatest extent, the anti-spalling performance of the castable can be improved by adding the aramid fiber into the castable, the situation that the castable bursts due to external factors such as weather is prevented in the actual use process, and the anti-spalling capability of the castable is greatly improved.

Description

Anti-stripping castable for aramid fiber
Technical Field
The invention relates to the technical field of castable, in particular to an anti-stripping castable for aramid fiber.
Background
The castable is also called refractory castable, is a granular and powdery material prepared by adding a certain amount of binding agent into the refractory material, has higher fluidity, and is formed into an unshaped refractory material in a casting mode.
The castable is various, for example, the castable disclosed in Chinese patent CN107285777A comprises mullite, quartz stone, blast furnace slag and the like, the castable can improve the temperature resistance and the mechanical property, but the castable on the existing market still has the defect of being incapable of effectively resisting stripping, so that the castable is easily cracked and stripped due to the influence of environment in the actual use process, the normal use of the castable is greatly influenced, and therefore, the aramid fiber stripping-resistant castable is provided to solve the problems.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides an anti-stripping castable for aramid fiber, which has the advantages of effective anti-stripping and the like, and solves the problem that the traditional castable cannot effectively resist stripping.
(II) technical scheme
In order to achieve the aim of effective anti-stripping, the invention provides the following technical scheme: an anti-stripping castable for aramid fiber comprises the following raw materials in parts by weight: 70-80 parts of aggregate, 4-6 parts of aramid fiber, 2-4 parts of diamond, 1-3 parts of silicon carbide particles, 2-4 parts of aluminum oxide, 1-3 parts of bauxite powder, 0.1-0.5 part of bonding agent and 0.1-0.5 part of composite dispersing agent.
Preferably, the aggregate is formed by mixing coarse sand and mullite.
Preferably, the diameter of the particles in the aggregate is at most 8mm and at least 2mm.
Preferably, the composite binder is formed by compounding three or more of aluminate cement, aluminum hydroxide micropowder and titanium dioxide.
Preferably, the composite dispersing agent is formed by compounding two or more of sodium methyl oxide and sodium metaphosphate.
The preparation method of the anti-stripping castable for the aramid fiber is characterized by comprising the following steps of:
1) Taking 20-30 parts of the aggregate out, putting the aggregate into a pulverizer for pulverizing, setting the pulverizing time to 8-10 minutes, and obtaining powdery aggregate after pulverizing;
2) All the powdery aggregate, aramid fiber, diamond, silicon carbide particles, aluminum oxide, bauxite powder and a binding agent are put into a mixer for mixing treatment, and the mixing time is set to be 20-26 minutes, so that a mixture A is obtained;
3) Putting the mixture A into mixer equipment for the next time, then sequentially putting a composite dispersing agent and a binding agent, setting the mixing time for 10-14 minutes, and obtaining a mixture B after mixing;
4) And finally, putting the mixture B into centrifugal mixing equipment, then putting the rest aggregate, setting the stirring time to be 5-7 minutes, and obtaining the aramid fiber anti-stripping castable after the mixing treatment is finished.
(III) beneficial effects
Compared with the prior art, the invention provides an anti-stripping castable for aramid fiber, which has the following beneficial effects:
according to the anti-spalling castable for the aramid fiber, the mixture of coarse sand and mullite is used as aggregate, and the compounding agent formed by compounding aluminate cement, aluminum hydroxide micropowder and titanium pigment is added for compounding, so that the composition stability of the castable in the production process can be enhanced to the greatest extent, the anti-spalling performance of the castable can be improved by adding the aramid fiber into the castable, the situation that the castable bursts due to external factors such as weather is prevented in the actual use process, and the anti-spalling capability of the castable is greatly improved.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one: an anti-stripping castable for aramid fiber comprises the following raw materials in parts by weight: 80 parts of aggregate, 6 parts of aramid fiber, 4 parts of diamond, 3 parts of silicon carbide particles, 4 parts of aluminum oxide, 3 parts of bauxite powder, 0.5 part of bonding agent and 0.5 part of composite dispersing agent.
The aggregate is formed by mixing coarse sand and mullite.
The diameter of the particles in the aggregate is 8mm at maximum and 2mm at minimum.
The composite binder is formed by compounding three or more of aluminate cement, aluminum hydroxide micropowder and titanium dioxide.
The composite dispersant is formed by compounding two or more of sodium methyl oxide and sodium metaphosphate.
The preparation method of the anti-stripping castable for the aramid fiber is characterized by comprising the following steps of:
1) Taking 30 parts of the aggregate out, putting the aggregate into a pulverizer for pulverization, setting the pulverizing time to be 10 minutes, and obtaining powdery aggregate after the pulverization is completed;
2) All the powdery aggregate, aramid fiber, diamond, silicon carbide particles, aluminum oxide, bauxite powder and a binding agent are put into a mixer for mixing treatment, and the mixing time is set to be 26 minutes, so that a mixture A is obtained;
3) Putting the mixture A into mixer equipment for the next time, then sequentially putting a composite dispersing agent and a binding agent, setting the mixing time for 14 minutes, and obtaining a mixture B after the mixing is completed;
4) And finally, putting the mixture B into centrifugal mixing equipment, then putting the rest aggregate, setting the stirring time to be 7 minutes, and obtaining the aramid fiber anti-stripping castable after the mixing treatment is completed.
Embodiment two: an anti-stripping castable for aramid fiber comprises the following raw materials in parts by weight: 75 parts of aggregate, 5 parts of aramid fiber, 3 parts of diamond, 2 parts of silicon carbide particles, 3 parts of aluminum oxide, 2 parts of bauxite powder, 0.3 part of bonding agent and 0.3 part of composite dispersing agent.
The aggregate is formed by mixing coarse sand and mullite.
The diameter of the particles in the aggregate is 8mm at maximum and 2mm at minimum.
The composite binder is formed by compounding three or more of aluminate cement, aluminum hydroxide micropowder and titanium dioxide.
The composite dispersant is formed by compounding two or more of sodium methyl oxide and sodium metaphosphate.
The preparation method of the anti-stripping castable for the aramid fiber is characterized by comprising the following steps of:
1) Taking 25 parts of the aggregate, putting the aggregate into a pulverizer, pulverizing for 9 minutes to obtain powdery aggregate;
2) All the powdery aggregate, aramid fiber, diamond, silicon carbide particles, aluminum oxide, bauxite powder and a binding agent are put into a mixer for mixing treatment, and the mixing time is set to be 23 minutes, so that a mixture A is obtained;
3) Putting the mixture A into mixer equipment for the next time, then sequentially putting a composite dispersing agent and a binding agent, setting the mixing time for 12 minutes, and obtaining a mixture B after the mixing is completed;
4) And finally, putting the mixture B into centrifugal mixing equipment, then putting the rest aggregate, setting the stirring time to be 6 minutes, and obtaining the anti-stripping castable for the aramid fiber after the mixing treatment is completed.
Embodiment III: an anti-stripping castable for aramid fiber comprises the following raw materials in parts by weight: 70 parts of aggregate, 4 parts of aramid fiber, 2 parts of diamond, 1 part of silicon carbide particles, 2 parts of aluminum oxide, 1 part of bauxite powder, 0.1 part of bonding agent and 0.1 part of composite dispersing agent.
The aggregate is formed by mixing coarse sand and mullite.
The diameter of the particles in the aggregate is 8mm at maximum and 2mm at minimum.
The composite binder is formed by compounding three or more of aluminate cement, aluminum hydroxide micropowder and titanium dioxide.
The composite dispersant is formed by compounding two or more of sodium methyl oxide and sodium metaphosphate.
The preparation method of the anti-stripping castable for the aramid fiber is characterized by comprising the following steps of:
1) Taking 20 parts of the aggregate out, putting the aggregate into a pulverizer for pulverization, setting the pulverizing time to 8 minutes, and obtaining powdery aggregate after the pulverization is completed;
2) All the powdery aggregate, aramid fiber, diamond, silicon carbide particles, aluminum oxide, bauxite powder and a binding agent are put into a mixer for mixing treatment, and the mixing time is set to be 20 minutes, so that a mixture A is obtained;
3) Putting the mixture A into mixer equipment for the next time, then sequentially putting a composite dispersing agent and a binding agent, setting the mixing time for 10 minutes, and obtaining a mixture B after the mixing is completed;
4) And finally, putting the mixture B into centrifugal mixing equipment, then putting the rest aggregate, setting the stirring time to be 5 minutes, and obtaining the aramid fiber anti-stripping castable after the mixing treatment is completed.
The beneficial effects of the invention are as follows: the mixture of coarse sand and mullite is used as aggregate, and the compounding agent formed by compounding aluminate cement, aluminum hydroxide micropowder and titanium dioxide is added for compounding, so that the composition stability of the castable in the production process can be enhanced to the greatest extent, and the anti-cracking performance of the castable can be improved by adding aramid fiber into the castable, so that the situation that the castable bursts due to external factors such as weather is prevented in the actual use process, and the anti-stripping capability of the castable is greatly improved.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The anti-stripping castable for the aramid fiber is characterized by comprising the following raw materials in parts by weight: 70-80 parts of aggregate, 4-6 parts of aramid fiber, 2-4 parts of diamond, 1-3 parts of silicon carbide particles, 2-4 parts of aluminum oxide, 1-3 parts of bauxite powder, 0.1-0.5 part of bonding agent and 0.1-0.5 part of composite dispersing agent.
2. The aramid fiber anti-stripping castable according to claim 1, wherein the aggregate is formed by mixing coarse sand and mullite.
3. An aramid fiber anti-spalling castable according to claim 1, wherein the diameter of the particles in the aggregate is at most 8mm and at least 2mm.
4. The aramid fiber anti-stripping castable according to claim 1, wherein the composite binder is formed by compounding three or more of aluminate cement, aluminum hydroxide micropowder and titanium dioxide.
5. The anti-stripping castable for aramid fiber as claimed in claim 1, wherein the composite dispersant is formed by compounding two or more of sodium methyl oxide salt and sodium metaphosphate.
6. The method for preparing the aramid fiber anti-stripping castable according to any one of claims 1 to 8, comprising the steps of:
1) Taking 20-30 parts of the aggregate out, putting the aggregate into a pulverizer for pulverizing, setting the pulverizing time to 8-10 minutes, and obtaining powdery aggregate after pulverizing;
2) All the powdery aggregate, aramid fiber, diamond, silicon carbide particles, aluminum oxide, bauxite powder and a binding agent are put into a mixer for mixing treatment, and the mixing time is set to be 20-26 minutes, so that a mixture A is obtained;
3) Putting the mixture A into mixer equipment for the next time, then sequentially putting a composite dispersing agent and a binding agent, setting the mixing time for 10-14 minutes, and obtaining a mixture B after mixing;
4) And finally, putting the mixture B into centrifugal mixing equipment, then putting the rest aggregate, setting the stirring time to be 5-7 minutes, and obtaining the aramid fiber anti-stripping castable after the mixing treatment is finished.
CN202310412715.7A 2023-04-18 2023-04-18 Anti-stripping castable for aramid fiber Pending CN116573943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310412715.7A CN116573943A (en) 2023-04-18 2023-04-18 Anti-stripping castable for aramid fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310412715.7A CN116573943A (en) 2023-04-18 2023-04-18 Anti-stripping castable for aramid fiber

Publications (1)

Publication Number Publication Date
CN116573943A true CN116573943A (en) 2023-08-11

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CN202310412715.7A Pending CN116573943A (en) 2023-04-18 2023-04-18 Anti-stripping castable for aramid fiber

Country Status (1)

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