CN114932626A - Method for preparing concrete by using three-stage fly ash and stirring device thereof - Google Patents

Method for preparing concrete by using three-stage fly ash and stirring device thereof Download PDF

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Publication number
CN114932626A
CN114932626A CN202210729989.4A CN202210729989A CN114932626A CN 114932626 A CN114932626 A CN 114932626A CN 202210729989 A CN202210729989 A CN 202210729989A CN 114932626 A CN114932626 A CN 114932626A
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China
Prior art keywords
concrete
agitator tank
fly ash
mixture
parts
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CN202210729989.4A
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Chinese (zh)
Inventor
楚京军
王伟
侯荣
刘亚娟
温丽敏
马燕
刘建峰
苏雁冰
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Ningxia Saima Kejin Concrete Co ltd
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Ningxia Saima Kejin Concrete Co ltd
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Priority to CN202210729989.4A priority Critical patent/CN114932626A/en
Publication of CN114932626A publication Critical patent/CN114932626A/en
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    • 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
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/14—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/12—Supplying or proportioning liquid ingredients
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/06—Quartz; Sand
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/30—Oxides other than silica
    • C04B14/305—Titanium oxide, e.g. titanates
    • 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
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08—Flue dust, i.e. fly ash
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/16—Sulfur-containing compounds
    • C04B24/18—Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/38—Polysaccharides or derivatives thereof
    • 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
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/302—Water reducers
    • 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
    • C04B2111/00008—Obtaining or using nanotechnology related materials
    • 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)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

The application discloses a method for preparing concrete by utilizing three-level fly ash, the three-level fly ash can improve the early strength of the concrete, starch and an inorganic nano material are used in a matched mode, the concrete can be prevented from being corroded and permeated by ions in water, a water reducing agent can reinforce the concrete doped with the three-level fly ash, the early strength is not easily influenced by the three-level fly ash, and the compactness of the concrete can be improved due to the addition of aggregate. During preparation, the mixed solution is added into the mixture while stirring, so that the quality of the concrete can be ensured. The application provides a stirring device, add the solid drier of agitator tank, can drive first gear at driving motor and rotate, make agitator tank pivoted in-process mix evenly, and when the agitator tank rotated, still can rotate through each lifting blade and further mix the solid drier, improve and mix even efficiency and effect, later, accessible second inlet pipe adds inorganic nano-material and mixes liquid and stir in proper order to the agitator tank, and finally, it can to arrange the concrete outward through twisting the lid.

Description

Method for preparing concrete by using three-stage fly ash and stirring device thereof
Technical Field
The application relates to the field of concrete processing and manufacturing, in particular to a method for preparing concrete by using three-level fly ash and a stirring device thereof.
Background
Concrete is the largest man-made building material in the world today and plays a great role in infrastructure construction. Is an artificial stone which is formed by even stirring, compact forming and curing hardening.
However, the existing concrete is easily corroded and penetrated by ions related to water, and further corrosion damage such as concrete spalling and corrosion of reinforcing steel bars wrapped by the concrete occur, the existing concrete has low early strength performance, and when various raw materials required by the concrete are uniformly stirred, the stirring efficiency and the stirring effect are poor, so that the final setting time of the concrete is long, and the construction period and the construction efficiency are easily influenced.
Disclosure of Invention
The application provides a method for preparing concrete by using three-stage fly ash and a stirring device thereof, which solve the problems that the traditional concrete in the prior art is easy to generate spalling corrosion damage, has low early strength performance and long final setting time, and is easy to influence the construction period and the construction efficiency.
In order to solve the technical problem, the application provides a method for preparing concrete by using three-level fly ash, which comprises the following steps:
weighing three-level fly ash, cement, aggregate, sandstone and starch according to a ratio, and mixing the three-level fly ash, the cement, the aggregate, the sandstone and the starch by using a stirring device to form a prefabricated mixture; wherein the weight components of the third-level fly ash are 160-190 parts, the weight components of the cement are 160-190 parts, the weight components of the aggregate are 800-950 parts, the weight components of the sand and stone are 600-700 parts, and the weight components of the starch are 4-5 parts;
adding 6-25 parts by weight of inorganic nano material into the prefabricated mixture and uniformly stirring to obtain a mixture; wherein the inorganic nano material is silver-doped nano titanium dioxide or a mixture of silver-doped nano titanium dioxide and nano silicon dioxide;
weighing water and a water reducing agent according to a ratio, and uniformly mixing the water and the water reducing agent to obtain a mixed solution, wherein the weight component of the water is 200-210 parts, and the weight component of the water reducing agent is 0.7-0.8;
and adding the mixed solution into the mixture while stirring the mixture by using the stirring device until the mixture is uniformly mixed to obtain concrete, wherein the stirring time is 0.5-2 hours.
Preferably, after obtaining the mixture, the method further comprises:
adding 0.7-0.8 part of exciting agent by weight into the mixture, wherein the exciting agent comprises one or more of sodium sulfate, alpha-sodium alkenyl sulfonate, sodium polyacrylate and triethanolamine.
Preferably, after adding 0.7-0.8 parts by weight of activator to the mixture, the method further comprises the following steps:
adding zinc chromate in 1-2 weight portions.
Preferably, the aggregate comprises coarse aggregate and fine aggregate.
Preferably, the water reducing agent is potassium lignosulfonate.
In order to solve the above technical problem, the present application also provides a concrete preparation stirring apparatus corresponding to the method for preparing concrete using three-stage fly ash, comprising:
the agitator tank supports the base, driving motor and fixing base, the agitator tank is located support on the base, the one end slope of agitator tank is provided with first inlet pipe, the other end of agitator tank revolves soon and has twisted the lid, be provided with the second inlet pipe on the agitator tank, be fixed with first gear on the agitator tank, driving motor is located the agitator tank below, driving motor's output shaft one end be fixed with first gear engagement's second gear, the fixing base is located the agitator tank is close to the one end position department of first inlet pipe, it is provided with the pivot to rotate in the agitator tank, the one end of pivot extends to the agitator tank outer and with fixing base fixed connection, be provided with a plurality of orientations in the pivot the lifting blade of agitator tank discharge end.
Preferably, a support ring is further fixed on the stirring tank;
correspondingly, a supporting groove is formed in the supporting base, and the supporting ring is located in the supporting groove in a sliding mode.
Preferably, the number of the support rings is two;
correspondingly, the number of the supporting bases is two.
Preferably, the method further comprises the following steps:
set up in through the bracing piece in the dust excluding hood of agitator tank discharge end department, the dust excluding hood has the dust remover through dust removal union coupling.
Compared with the prior art, the method for preparing the concrete by using the three-level fly ash has the advantages that the three-level fly ash is added, the early strength of the concrete can be improved, the corrosion and the penetration of the concrete by related ions in water can be avoided by using the starch and the inorganic nano material in a matching manner, the firmness of the concrete is improved, the final setting time is shortened, the concrete doped with the three-level fly ash can be reinforced by adding the water reducing agent into the concrete, the early strength is not easily influenced by the three-level fly ash, and the concrete compactness and the performance of the concrete can be improved by adding the aggregate into the concrete. Meanwhile, during preparation, the mixed liquid of water and the water reducing agent is added into the mixture while stirring, so that the stirring uniformity can be improved, and the quality of concrete is ensured. The application provides a stirring apparatus, can add the solid drier in to the agitator tank through first inlet pipe, then drive first gear revolve through start-up driving motor, and then drive the agitator tank through the second gear and rotate, mix the solid drier in it evenly, in agitator tank pivoted, still can rotate through the pivot and drive each lifting blade pivoted mode and further mix the solid drier, improve and mix equal efficiency and effect, afterwards, accessible second inlet pipe adds the mixed liquid and the stirring of inorganic nano-material and water-reducing agent in proper order to the agitator tank, further shorten final set time, finally, through twist the mode of the lid outside with the concrete can.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments are briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without making any inventive changes.
FIG. 1 is a flow chart of a method for preparing concrete by using three-stage fly ash according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a mixing apparatus for concrete preparation according to an embodiment of the present invention;
in the figure: 1 agitator tank, 2 support bases, 3 driving motor, 4 fixing bases, 5 first inlet pipes, 6 covers, 7 second inlet pipes, 8 first gears, 9 second gears, 10 connecting rods, 11 rotating shafts, 12 lifting blades, 13 support rings, 14 support grooves, 15 support rods, 16 dust hoods, 17 dust removal pipes and 18 dust removers.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings.
The core of the application is to provide a method for preparing concrete by utilizing three-stage fly ash and a stirring device thereof, which can solve the problems that the traditional concrete in the prior art is easy to generate spalling corrosion damage, the early strength performance is low, the final setting time is long, and the construction period and the construction efficiency are easily influenced.
FIG. 1 is a flow chart of a method for preparing concrete by using three-stage fly ash according to an embodiment of the present invention, as shown in FIG. 1.
A method for preparing concrete by using three-grade fly ash comprises the following steps:
s101: weighing the three-level fly ash, cement, aggregate, sandstone and starch according to the proportion, and mixing the three-level fly ash, the cement, the aggregate, the sandstone and the starch by using a stirring device to form a prefabricated mixture. Wherein, the weight components of the third-level fly ash are 160-190 parts, the weight components of the cement are 160-190 parts, the weight components of the aggregate are 800-950 parts, the weight components of the sand and stone are 600-700 parts, and the weight components of the starch are 4-5 parts.
The third-level fly ash is industrial waste residue with larger current discharge capacity and can enhance the strength of concrete, the aggregate and the sandstone are main raw materials in the concrete, the compactness and the performance of the concrete can be improved by adding the aggregate and the sandstone, and the starch and the third-level fly ash can form floccules, so that the sedimentation of the third-level fly ash is facilitated.
S102: adding 6-25 parts by weight of inorganic nano material into the prefabricated mixture and uniformly stirring to obtain a mixture; wherein the inorganic nano material is silver-doped nano titanium dioxide or a mixture of silver-doped nano titanium dioxide and nano silicon dioxide; the silver-doped nano titanium dioxide has excellent super-hydrophobic performance, can be used for preparing super-hydrophobic concrete, does not have the phenomenon of water drop sagging, and can effectively block moisture and ions Cl in water - ，Mg 2+ And the like, so that the concrete has good waterproofness, frost resistance and corrosion resistance.
S103: weighing water and a water reducing agent according to a ratio, and uniformly mixing the water and the water reducing agent to obtain a mixed solution, wherein the weight component of the water is 200-210 parts, and the weight component of the water reducing agent is 0.7-0.8; the water reducing agent is added to reinforce the concrete doped with the third-level fly ash, so that the early strength is not easily influenced by the third-level fly ash.
S104: and adding the mixed solution into the mixture while stirring the mixture by using a stirring device until the mixture is uniformly mixed to obtain concrete, wherein the stirring time is 0.5-2 hours.
Preferably, the aggregate comprises coarse aggregate and fine aggregate, and the addition of the aggregate can improve the compactness of the concrete. The water reducing agent is potassium lignosulphonate.
A method for preparing concrete by using three-stage fly ash, which comprises the following steps after obtaining a mixture: adding 0.7-0.8 part of activator into the mixture, wherein the activator comprises one or more of sodium sulfate, sodium alpha-alkenyl sulfonate, sodium polyacrylate and triethanolamine. The early strength of the concrete can be further improved by matching the exciting agent with the water reducing agent.
A method for preparing concrete by using three-grade fly ash comprises the following steps of adding 0.7-0.8 part of excitant by weight of components into a mixture: adding zinc chromate in 1-2 weight portions. The zinc chromate is beneficial to improving the dispersibility of floccules formed by combining the starch and the third-level fly ash, so that the floccules formed by combining the starch and the third-level fly ash can be dispersed in the concrete more quickly, and the early strength of the concrete is not influenced.
Example 1
160 parts of tertiary fly ash, 160 parts of cement, 600 parts of coarse aggregate, 200 parts of fine aggregate, 600 parts of sandstone and 4 parts of starch are weighed, and the tertiary fly ash, the cement, the coarse aggregate, the fine aggregate, the sandstone and the starch are mixed by adopting a stirring device to form a prefabricated mixture.
Adding 6 parts of inorganic nano material into the prefabricated mixture and uniformly stirring to obtain a mixture;
adding 0.7 part by weight of exciting agent and 1 part by weight of zinc chromate into the mixture;
200 parts of water and 0.7 part of potassium lignosulfonate are weighed and mixed evenly to obtain a mixed solution.
The mixture was stirred with a stirring device while the mixed solution was added thereto until the mixture was uniformly mixed to obtain concrete, and the stirring time was 0.5 hour.
Example 2
Weighing 190 parts of tertiary fly ash, 190 parts of cement, 700 parts of coarse aggregate, 250 parts of fine aggregate, 700 parts of sandstone and 5 parts of starch, and mixing the tertiary fly ash, the cement, the coarse aggregate, the fine aggregate, the sandstone and the starch by adopting a stirring device to form a prefabricated mixture.
Adding 25 parts of inorganic nano material into the prefabricated mixture and uniformly stirring to obtain a mixture;
adding an activator with the weight components of 0.8 part and 2 parts of zinc chromate into the mixture;
210 parts of water and 0.8 part of potassium lignosulfonate are weighed and mixed evenly to obtain a mixed solution.
The mixture was stirred with a stirring device while the mixed solution was added thereto until the mixture was uniformly mixed to obtain concrete, and the stirring time was 2 hours.
Example 3
Weighing 175 parts of tertiary fly ash, 175 parts of cement, 600 parts of coarse aggregate, 150 parts of fine aggregate, 650 parts of sandstone and 4.5 parts of starch, and mixing the tertiary fly ash, the cement, the coarse aggregate, the fine aggregate, the sandstone and the starch by adopting a stirring device to form a prefabricated mixture.
Adding 28 parts of inorganic nano material into the prefabricated mixture and uniformly stirring to obtain a mixture;
adding an activator with the weight components of 0.75 part and 1.5 parts of zinc chromate into the mixture;
205 parts of water and 0.75 part of potassium lignosulfonate are weighed and mixed evenly to obtain a mixed solution.
The mixture was stirred with a stirring device while the mixed solution was added thereto until the mixture was uniformly mixed to obtain concrete, and the stirring time was 1 hour.
The method for preparing the concrete by using the three-level fly ash has the advantages that the three-level fly ash is added, the early strength of the concrete can be improved, the starch and the inorganic nano material are matched for use, the corrosion and the penetration of the concrete by related ions in water can be avoided, the firmness of the concrete is improved, the final setting time is shortened, the concrete doped with the three-level fly ash can be reinforced by adding the water reducing agent in the concrete, the early strength is not easily influenced by the three-level fly ash, the aggregate is added in the concrete, the compactness of the concrete can be improved, and the performance of the concrete can be enhanced. Meanwhile, during preparation, the mixed liquid of water and the water reducing agent is added into the mixture while stirring, so that the stirring uniformity can be improved, and the quality of concrete is ensured.
The embodiment of the invention provides a method for preparing concrete by using three-stage fly ash, and also provides a stirring device for preparing concrete corresponding to the method based on the method for preparing concrete by using three-stage fly ash described in the embodiment. Since the embodiment of the mixing device part for concrete preparation corresponds to the embodiment of the method part, the embodiment of the mixing device part for concrete preparation is described with reference to the embodiment of the method part, and is not repeated here.
Fig. 2 is a schematic structural diagram of a stirring apparatus for concrete preparation according to an embodiment of the present invention, as shown in fig. 2.
The utility model provides a stirring apparatus for concrete preparation, including agitator tank 1, agitator tank 1's shape and size all can be confirmed according to actual conditions, stir processing through agitator tank 1 to each raw materials, agitator tank 1 is located supports base 2, support through supporting base 2, agitator tank 1 and support and slide between the base 2, driving motor 3 is located agitator tank 1's below, output shaft one end at driving motor 3 is fixed with second gear 9, during the use, can be at driving motor 3's output shaft one end fixed connection pole 10, fix second gear 9 in the one end of connecting rod 10, first gear 8 is fixed to be set up in agitator tank 1's intermediate position department, be intermeshing between first gear 8 and the second gear 9, during the operation, accessible starts driving motor 3 and drives second gear 9 and rotates, and then drive agitator tank 1 pivoted mode through first gear 8 and stir the equal mixed material that gets into agitator tank 1 through first inlet pipe 5 and mix And treating, wherein the first feeding pipe 5 is obliquely arranged at one end of the stirring tank 1, a cover plate is arranged on the first feeding pipe 5, the cover body 6 is screwed at the discharge end of the stirring tank 1, and after the materials are uniformly mixed through the stirring tank 1, the mixed materials can be discharged in a mode of screwing off the cover body 6.
Second inlet pipe 7 intercommunication sets up on agitator tank 1, be arranged in adding liquid material or auxiliary material to agitator tank 1, fixing base 4 sets up the one end position department that is close to first inlet pipe 5 at agitator tank 1, fixing base 4 set up need use not influence the installation of first inlet pipe 5 and use as the standard, pivot 11 rotates and sets up the central axis department at agitator tank 1, the one end of pivot 11 extends to behind agitator tank 1's the outside with fixing base 2 fixed connection from agitator tank 1's one end, in agitator tank 1 pivoted, pivot 11 is the pivoted also, pivot 11 rotates and drives each lifting blade 12 and rotate, the stirring effect and the efficiency of each raw materials in the improvement to agitator tank 1.
A stirring device for concrete preparation is characterized in that a support ring 13 is also fixed on a stirring tank 1; correspondingly, the supporting base 2 is provided with a supporting groove 14, and the supporting ring 13 is slidably positioned in the supporting groove 14. The smooth rotation of the stirring tank 1 is improved by the engagement between the support rings 13 and the support grooves 14. In order to ensure the operational stability of the stirring tank 1, two support rings 13 may be fixed to the stirring tank 1, and correspondingly, two support bases 2 may be provided, and a support groove 14 may be provided on each support base 2.
A concrete preparation stirring device, further comprising: a dust hood 16 arranged at the discharge end of the stirring tank 1 through a support rod 15, and the dust hood 16 is connected with a dust remover 18 through a dust removing pipe 17. The dust at the discharge end of the stirring tank 1 is absorbed through the cooperation between the dust hood 16 and the dust remover 18, and a good operating environment is ensured.
The application provides a pair of agitating unit is used in concrete preparation, can add the solid drier through first inlet pipe 5 in to agitator tank 1, then drive first gear 8 through start-up driving motor 3 and rotate, and then drive agitator tank 1 through second gear 9 and rotate, mix the solid drier in it evenly, in 1 pivoted agitator tank, still can rotate through pivot 11 and drive each lifting blade 12 pivoted mode and further mix the solid drier, improve and mix equal efficiency and effect, afterwards, accessible second inlet pipe 7 adds the mixed liquid of inorganic nano-material and water-reducing agent and stirs to agitator tank 1 in proper order, further shorten final set time, finally, through twisting off the mode of lid 6 with the concrete outer row can.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The above-described embodiments of the present application do not limit the scope of the present application.

Claims (9)

1. A method for preparing concrete by using three-grade fly ash is characterized by comprising the following steps:
weighing three-level fly ash, cement, aggregate, sandstone and starch according to a ratio, and mixing the three-level fly ash, the cement, the aggregate, the sandstone and the starch by using a stirring device to form a prefabricated mixture; wherein the weight components of the three-level fly ash are 190-160 parts, the weight components of the cement are 190-160 parts, the weight components of the aggregate are 800-950 parts, the weight components of the sand are 700-600 parts, and the weight components of the starch are 4-5 parts;
adding 6-25 parts by weight of inorganic nano material into the prefabricated mixture and uniformly stirring to obtain a mixture; wherein the inorganic nano material is silver-doped nano titanium dioxide or a mixture of silver-doped nano titanium dioxide and nano silicon dioxide;
weighing water and a water reducing agent according to a ratio, and uniformly mixing the water and the water reducing agent to obtain a mixed solution, wherein the weight component of the water is 200-210 parts, and the weight component of the water reducing agent is 0.7-0.8;
and adding the mixed solution into the mixture while stirring the mixture by using the stirring device until the mixture is uniformly mixed to obtain concrete, wherein the stirring time is 0.5-2 hours.
2. The method for preparing concrete by using three-stage fly ash according to claim 1, further comprising, after obtaining the mixture:
adding 0.7-0.8 part of exciting agent by weight into the mixture, wherein the exciting agent comprises one or more of sodium sulfate, alpha-sodium alkenyl sulfonate, sodium polyacrylate and triethanolamine.
3. The method for preparing concrete by using three-stage fly ash as claimed in claim 2, wherein after adding 0.7-0.8 parts by weight of excitant to the mixture, the method further comprises:
adding zinc chromate in 1-2 weight portions.
4. The method for preparing concrete using three-stage fly ash as claimed in claim 1, wherein the aggregate comprises coarse aggregate and fine aggregate.
5. The method for preparing concrete by using three-stage fly ash according to claim 1, wherein the water reducing agent is potassium lignosulfonate.
6. A stirring device for concrete preparation is characterized by comprising:
the agitator tank supports the base, driving motor and fixing base, the agitator tank is located support on the base, the one end slope of agitator tank is provided with first inlet pipe, the other end of agitator tank has twisted soon the lid, be provided with the second inlet pipe on the agitator tank, be fixed with first gear on the agitator tank, driving motor is located the agitator tank below, driving motor's output shaft one end be fixed with first gear engagement's second gear, the fixing base is located the agitator tank is close to the one end position department of first inlet pipe, it is provided with the pivot to rotate in the agitator tank, the one end of pivot extends to the agitator tank outer and with fixing base fixed connection, be provided with a plurality of orientations in the pivot the lifting blade of agitator tank discharge end.
7. The mixing device for concrete preparation according to claim 6, wherein a support ring is further fixed on the mixing tank;
correspondingly, a supporting groove is formed in the supporting base, and the supporting ring is located in the supporting groove in a sliding mode.
8. The mixing device for concrete preparation according to claim 7, wherein the number of the support rings is two;
correspondingly, the number of the supporting bases is two.
9. The mixing device for concrete preparation according to claim 6, further comprising:
set up in through the bracing piece in the dust excluding hood of agitator tank discharge end department, the dust excluding hood has the dust remover through dust removal union coupling.
CN202210729989.4A 2022-06-24 2022-06-24 Method for preparing concrete by using three-stage fly ash and stirring device thereof Pending CN114932626A (en)

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CN210552155U (en) * 2019-06-21 2020-05-19 白子麟 Concrete mixing device of upset crushed aggregates
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AU2020103163A4 (en) * 2020-11-02 2021-01-14 Tongji University A Fully Recycled Concrete Wave-proof Block Using Large-particle-size Recycled Coarse Aggregate and Recycled Powder and Preparation Method Thereof
CN112430015A (en) * 2020-11-21 2021-03-02 湖北云海混凝土有限公司 Large-mixing-amount fly ash concrete and preparation method thereof
CN112707705A (en) * 2021-01-23 2021-04-27 广州市鸿磊混凝土有限公司 Concrete doped with fly ash for improving performance and reducing hydration heat and preparation method thereof
CN213382263U (en) * 2020-08-24 2021-06-08 北京天地建设砼制品有限公司 High-efficient concrete mixing tank
CN213648054U (en) * 2020-11-18 2021-07-09 袁跟房 Concrete mixing device is used in highway engineering construction
CN113956789A (en) * 2021-11-17 2022-01-21 中建商品混凝土有限公司 Super-hydrophobic coating for concrete and preparation method of super-hydrophobic concrete

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106671280A (en) * 2015-11-11 2017-05-17 重庆特安建筑消防工程质量检测有限公司 Concrete mixing plant with automatic feeding function
CN209851288U (en) * 2019-03-26 2019-12-27 石如玉 Agitated vessel for building engineering
CN210552155U (en) * 2019-06-21 2020-05-19 白子麟 Concrete mixing device of upset crushed aggregates
CN213382263U (en) * 2020-08-24 2021-06-08 北京天地建设砼制品有限公司 High-efficient concrete mixing tank
CN112110684A (en) * 2020-09-01 2020-12-22 武汉鑫云海混凝土有限公司 Large-mixing-amount fly ash concrete and preparation method thereof
AU2020103163A4 (en) * 2020-11-02 2021-01-14 Tongji University A Fully Recycled Concrete Wave-proof Block Using Large-particle-size Recycled Coarse Aggregate and Recycled Powder and Preparation Method Thereof
CN213648054U (en) * 2020-11-18 2021-07-09 袁跟房 Concrete mixing device is used in highway engineering construction
CN112430015A (en) * 2020-11-21 2021-03-02 湖北云海混凝土有限公司 Large-mixing-amount fly ash concrete and preparation method thereof
CN112707705A (en) * 2021-01-23 2021-04-27 广州市鸿磊混凝土有限公司 Concrete doped with fly ash for improving performance and reducing hydration heat and preparation method thereof
CN113956789A (en) * 2021-11-17 2022-01-21 中建商品混凝土有限公司 Super-hydrophobic coating for concrete and preparation method of super-hydrophobic concrete

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