CN114378949B - Lightweight high-strength corundum-mullite castable and preparation method thereof - Google Patents
Lightweight high-strength corundum-mullite castable and preparation method thereof Download PDFInfo
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- CN114378949B CN114378949B CN202111652892.XA CN202111652892A CN114378949B CN 114378949 B CN114378949 B CN 114378949B CN 202111652892 A CN202111652892 A CN 202111652892A CN 114378949 B CN114378949 B CN 114378949B
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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
- B28C5/08—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
- B28C5/16—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 vertical or steeply inclined axis
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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
- B28C5/48—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected by vibrations
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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
- 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
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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
- 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
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
- B28C7/162—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B35/10—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 aluminium oxide
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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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- 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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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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- 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
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- Materials Engineering (AREA)
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- Dispersion Chemistry (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a lightweight high-strength corundum-mullite castable and a preparation method thereof, and relates to the technical field of castable preparation, wherein the castable comprises porous corundum-mullite ceramic particles, porous corundum-mullite ceramic fine powder, corundum fine powder, silicon dioxide micro powder and alpha-Al 2 O 3 Micro powder, calcium aluminate cement, rho-Al 2 O 3 Binding agent, silica fume superfine powder and silica sol. According to the lightweight high-strength corundum-mullite castable and the preparation method thereof, after corundum, mullite and other raw materials are injected into the stirring cabin through the cooperation of the stirring motor, the movable column and the stirring column, the stirring motor can be started and drives the stirring column to rotate through the movable column, then raw materials in the stirring cabin are stirred and mixed, meanwhile, the movable column can drive the stirring column to rotate when rotating, and the raw materials can be turned out under the action of the stirring column when accumulating at the bottom of the stirring cabin, so that the raw materials are uniformly mixed.
Description
Technical Field
The invention relates to the technical field of castable preparation, in particular to a lightweight high-strength corundum-mullite castable and a preparation method thereof.
Background
The castable is also called refractory castable, which is a granular and powdery material prepared by adding a certain amount of binding agent into the refractory material, has higher fluidity, and is shaped in a casting mode, compared with other unshaped refractory materials, the binding agent and the water content are higher, and the fluidity is better, so the castable has wider application range, the used materials and the binding agent can be selected according to the use condition, the castable can be directly cast into a lining body for use, and can be used for preparing a precast block by a casting or jolt method, the corundum-mullite brick is a high-alumina refractory product consisting of corundum and mullite main crystal phases, the corundum-mullite brick is a refractory product prepared from high-purity or purer raw materials, the presence of low-melting-point oxide impurities can reduce the high-temperature performance, and the content of pure mullite synthesized from industrial alumina powder and pure clay, bauxite or silica is adopted as raw materials, especially the content of alkali metal oxide is as low as possible.
The product prepared by taking mullite along the grain as the aggregate has good thermal shock resistance but slightly poor erosion resistance, and the product prepared by taking corundum sand as the aggregate has good corrosion resistance but slightly poor thermal shock resistance, so that the castable formed by mixing corundum and mullite and other raw materials according to a certain proportion has good high-temperature strength, high-temperature creep resistance, thermal shock resistance and erosion resistance, the castable needs to ensure uniform mixing of the raw materials in the mixing process, and is finished by a special mixing and stirring device, but the common mixing and stirring device in the market mixes in the same mode after different amounts of raw materials enter a mixing cabin, thereby causing additional consumption of energy.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a lightweight high-strength corundum-mullite castable and a preparation method thereof, and solves the problems in the prior art.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the lightweight high-strength corundum-mullite castable comprises the following components in parts by weight: 10% -15% of porous corundum-mullite ceramic particles, 10% -25% of porous corundum-mullite ceramic fine powder, 15% -20% of corundum fine powder, silicon dioxide micro powder and 10% -15% of alpha-Al 2 O 3 Micro powder, 10-15% of calcium aluminate cement, 2-5% of rho-Al 2 O 3 Mixture, 5% -10% of silica fume superfine powder and the balance of silica sol.
Further, the invention also provides a preparation method of the lightweight high-strength corundum-mullite castableThe method comprises the following steps: porous corundum-mullite ceramic particles, porous corundum-mullite ceramic fine powder, corundum fine powder, silicon dioxide micro powder and alpha-Al 2 O 3 Placing the micropowder, calcium aluminate cement and silica fume superfine powder into a stirring and mixing device, stirring and mixing, fully and uniformly stirring, and adding rho-Al 2 O 3 And (5) continuously stirring the binding agent and the silica sol until the castable is molded.
Further, the invention also provides a light high-strength corundum-mullite castable preparation device, which comprises a bottom plate, wherein the top of the bottom plate is fixedly provided with a uniformly distributed fixing frame, the top of the bottom plate is welded with a supporting frame, the bottom of the bottom plate is provided with uniformly distributed supporting legs, the inner side of the fixing frame is provided with uniformly distributed springs and universal joints, a stirring cabin is movably sleeved between the springs and the universal joints, a discharge valve is arranged outside the stirring cabin, the top of the supporting frame is fixedly provided with a top plate, the outer part of the top plate is fixedly sleeved with a uniformly distributed electric telescopic column, and a driving shaft of the electric telescopic column extends to the lower part of the top plate and is fixedly sleeved with a sealing cover.
Further, the fixed cover in top of bottom plate is equipped with vibrating motor, vibrating motor's the outside fixed cover of output shaft is equipped with the tray, the tray cup joints in the outside of agitator tank, and is provided with the space between tray and the agitator tank, can make the inside structure of tray and the outside contact of agitator tank and make the whole vibrations that produce high frequency of agitator tank after vibrating motor starts, supplementary agitator tank is inside to stir the mixed work that goes on.
Further, evenly distributed's vibrations spoke is fixed to the bottom fixed mounting of agitator tank, the inside fixed cover of tray is equipped with evenly distributed's contact spoke, match each other between vibrations spoke and the contact spoke, can drive the contact spoke rotatory when the tray is rotatory, can intermittent type nature when the contact spoke is rotatory with the vibrations spoke contact of agitator tank bottom to make the agitator tank produce the vibrations of high frequency.
Further, the sealed lid and the stirring cabin are mutually matched, the stirring motor is fixedly sleeved at the top of the sealed lid, the output shaft of the stirring motor extends to the lower part of the sealed lid and is fixedly sleeved with the movable column, the stirring column which is uniformly distributed is fixedly sleeved outside the movable column, the sealed lid can be in butt joint with the top of the stirring cabin under the action of the driving shaft of the electric telescopic column, the stirring cabin is sealed, and the stirring motor can drive the stirring column to rotate through the movable column to stir and mix raw materials inside the stirring cabin.
Further, the auger disc is sleeved at the bottom end of the movable column, the bottom of the auger disc is in contact with the bottom of the inner wall of the stirring cabin, and when raw materials accumulate at the bottom of the stirring cabin, the auger disc can turn the raw materials upwards repeatedly, so that the raw materials are prevented from accumulating at the bottom of the stirring cabin.
Further, the outside fixed cover of sealed lid is equipped with the intercommunication base, the one end of intercommunication base extends to the inboard of sealed lid and fixed cover is equipped with evenly distributed's injection head, the top fixed mounting of roof has the fan, be connected with communicating pipe between fan and the intercommunication base, when carrying out the mixed work to a small amount of raw materials, the fan can start and prepare the wind beam, sprays the inside of stirring cabin with the wind beam through the injection head, acts on the raw materials, supplementary a small amount of raw materials's mixture reduces agitator motor and vibration motor's operating time.
Further, the fixed cover in top of bottom plate is equipped with the controller that is located between the electric telescopic column, equal electric connection between controller and fan, electric telescopic column, agitator motor, the vibrations motor, the controller can control the respective operating time of fan, electric telescopic column, agitator motor, vibrations motor to the degree of automation of the whole during operation of hoisting device.
Further, the invention also provides a method for preparing the lightweight high-strength corundum-mullite castable by using the preparation equipment, which comprises the following steps of:
s1, starting an electric telescopic column, wherein the electric telescopic column drives a sealing cover to move upwards through a driving shaft of the electric telescopic column, the top of a stirring cabin is opened, corundum, mullite and other raw materials to be mixed are injected into the stirring cabin according to a proportion, the electric telescopic column is started again, the sealing cover descends until the sealing cover seals the top end of the stirring cabin, a stirring motor is started, the stirring motor drives the stirring column to rotate through a movable column, raw materials in the stirring cabin are stirred and mixed, simultaneously the movable column drives an auger disc to rotate when rotating, and the auger disc turns up the raw materials repeatedly when accumulating at the bottom of the stirring cabin.
S2, when stirring and mixing work is carried out in the stirring cabin, the vibration motor is started and drives the tray and the contact spokes to rotate through the output shaft of the vibration motor, the contact spokes intermittently contact with the vibration spokes at the bottom of the stirring cabin when rotating, the stirring cabin moves under the action of the universal joint and drives the spring to shrink or stretch, high-frequency vibration is generated, and stirring and mixing work carried out in the stirring cabin is assisted.
S3, when a small amount of raw materials are mixed, the fan is started and used for preparing an air beam, then the air beam is input into the interior of the communication base through the communication pipe, and finally the air beam is sprayed into the stirring cabin through the spraying head and acts on the raw materials, so that the raw materials are lifted up in the stirring cabin to assist in mixing a small amount of raw materials, the working time of a stirring motor is shortened, meanwhile, when the fan works, the air pressure in the stirring cabin can be increased under the action of the air beam, the mixing work is completed, and when products are output outwards, the products can be discharged through the discharge valve, and the high pressure in the stirring cabin can assist the discharge efficiency of the discharge valve.
The invention provides a lightweight high-strength corundum-mullite castable and a preparation method thereof, and the corundum-mullite castable has the following beneficial effects:
1. according to the lightweight high-strength corundum-mullite castable and the preparation method thereof, after corundum, mullite and other raw materials are injected into the stirring cabin through the cooperation of the stirring motor, the movable column and the stirring column, the stirring motor can be started and drives the stirring column to rotate through the movable column, then raw materials in the stirring cabin are stirred and mixed, meanwhile, the movable column can drive the stirring column to rotate when rotating, and the raw materials can be turned out under the action of the stirring column when accumulating at the bottom of the stirring cabin, so that the raw materials are uniformly mixed.
2. According to the lightweight high-strength corundum-mullite castable and the preparation method thereof, through the cooperation of the vibrating motor and the tray and the contact spokes and the vibrating spokes, the vibrating motor can be started and drives the tray and the contact spokes to rotate through the output shaft of the vibrating motor in the process of mixing preparation, the contact spokes can intermittently contact with the vibrating spokes at the bottom of the stirring cabin when rotating, the stirring cabin vibrates along with the vibrating spokes, and accordingly stirring and mixing work inside the stirring cabin is assisted, and the mixing effect of raw materials is further improved.
3. According to the lightweight high-strength corundum-mullite castable and the preparation method thereof, through the cooperation of the blower, the communicating pipe, the communicating base and the injection head, when the castable is used for mixing a small amount of raw materials, the blower can be started and prepare a wind beam, then the wind beam is input into the interior of the communicating base through the communicating pipe, finally the interior of the stirring cabin is injected through the injection head, the mixing of a small amount of raw materials is assisted, the stirring motor does not need to work for a long time, and therefore the energy consumption of the whole working of the device is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the back surface of the present invention;
FIG. 3 is a schematic view of the front face of the present invention;
FIG. 4 is a schematic view of the structure of the bottom of the stirring tank of the present invention;
FIG. 5 is a schematic view of the structure of the interior of the stirring tank of the present invention;
FIG. 6 is a schematic view of the inside of the tray of the present invention;
FIG. 7 is a schematic view of the structure of the inside of the top plate and the sealing cover of the present invention;
FIG. 8 is a schematic view of the structure of the outside of the fixing frame of the present invention;
fig. 9 is a schematic view of the structure of the spring and the universal joint of the present invention.
In the figure: 1. a bottom plate; 2. a vibration motor; 3. a discharge valve; 4. a tray; 5. support legs; 6. a fixing frame; 7. a spring; 8. a universal joint; 9. a support frame; 10. a controller; 11. an electric telescopic column; 12. a blower; 13. a top plate; 14. sealing cover; 15. a stirring cabin; 16. a stirring motor; 17. vibrating spokes; 18. a movable column; 19. stirring the column; 20. an auger disc; 21. an ejection head; 22. a communicating base; 23. contact spokes; 24. and communicating pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
Referring to fig. 1 to 9, a lightweight high-strength corundum-mullite castable comprises 10% porous corundum-mullite ceramic particles, 10% porous corundum-mullite ceramic fine powder, 15% corundum fine powder, silica micropowder and 10% alpha-Al 2 O 3 Micro powder, 10% calcium aluminate cement, 2% rho-Al 2 O 3 Binding agent, 5% silica fume superfine powder and the balance of silica sol.
Example 2
This example describes the preparation of the castable of example 1: porous corundum-mullite ceramic particles, porous corundum-mullite ceramic fine powder, corundum fine powder, silicon dioxide micro powder and alpha-Al 2 O 3 Placing the micropowder, calcium aluminate cement and silica fume superfine powder into a stirring and mixing device, stirring and mixing, fully and uniformly stirring, and adding rho-Al 2 O 3 And (5) continuously stirring the binding agent and the silica sol until the castable is molded.
Example 3
The embodiment describes the preparation equipment of the lightweight high-strength corundum mullite castable in the embodiment 1, comprising a bottom plate 1, wherein a uniformly distributed fixing frame 6 is fixedly arranged at the top of the bottom plate 1, a supporting frame 9 is welded at the top of the bottom plate 1, uniformly distributed supporting legs 5 are arranged at the bottom of the bottom plate 1, uniformly distributed springs 7 and universal joints 8 are arranged at the inner side of the fixing frame 6, a stirring cabin 15 can be kept stable under the action of the springs 7 and the universal joints 8 when the stirring cabin 15 does not work and is positioned at the inner side of the fixing frame 6, a stirring cabin 15 is movably sleeved between the springs 7 and the universal joints 8, a sealing cover 14 is matched with the stirring cabin 15, the sealing cover 14 can be butted with the top of the stirring cabin 15 under the action of a driving shaft of an electric telescopic column 11 and seals the stirring cabin 15, a stirring motor 16 is fixedly sleeved at the top of the sealing cover 14, when raw materials are completely injected into the stirring cabin 15, after the stirring cabin 15 is sealed by the sealing cover 14, a worker can start the stirring motor 16, an output shaft of the stirring motor 16 extends to the lower part of the sealing cover 14 and is fixedly sleeved with the movable column 18, the stirring motor 16 drives the stirring column 19 to rotate through the movable column 18, raw materials in the stirring cabin 15 are stirred and mixed, a packing auger disc 20 is fixedly sleeved at the bottom end of the movable column 18, the bottom of the packing auger disc 20 is contacted with the bottom of the inner wall of the stirring cabin 15, the packing auger disc 20 is driven to rotate during rotation by the movable column 18, when raw materials accumulate at the bottom of the stirring cabin 15, the packing auger disc 20 can repeatedly upwards turn out the raw materials, so that raw materials are prevented from accumulating at the bottom of the stirring cabin 15, a discharge valve 3 is arranged outside the stirring cabin 15, and a product can be obtained after the mixing operation of the raw materials is completed, the product can be outwards discharged through bleeder valve 3, the principle and the use of this bleeder valve 3 are the same with prior art, and not repeated here, the top fixed mounting of support frame 9 has roof 13, and the outside fixed cover of roof 13 is equipped with evenly distributed's electric telescopic column 11, and electric telescopic column 11's drive shaft extends to the below of roof 13 and fixed cover is equipped with sealed lid 14, and electric telescopic column 11 can drive sealed lid 14 motion through its drive shaft after starting, from the open and shut state at control stirring cabin 15 top, and this electric telescopic column 11's model is JINJE-1601.
Referring to fig. 3 to 6, the top of the base plate 1 is fixedly sleeved with a vibration motor 2, the outer part of an output shaft of the vibration motor 2 is fixedly sleeved with a tray 4, the tray 4 can be driven to rotate by an output shaft of the vibration motor 2 after the vibration motor 2 is started, then the tray 4 is sleeved with the outer part of the stirring cabin 15, the inner structure of the tray 4 is in contact with the outer part of the stirring cabin 15, the stirring cabin 15 integrally generates high-frequency vibration, stirring and mixing operation in the stirring cabin 15 is assisted, a gap is arranged between the tray 4 and the stirring cabin 15, the gap between the tray 4 and the stirring cabin 15 can avoid collision with the tray 4 when the stirring cabin 15 vibrates, uniformly distributed vibration spokes 17 are fixedly arranged at the bottom of the stirring cabin 15, the tray 4 can drive contact spokes 23 to rotate when the tray 4 rotates, uniformly distributed contact spokes 23 are fixedly sleeved with the inner part of the tray 4, the vibration spokes 17 are mutually matched with the contact spokes 23, and the vibration spokes 17 at the bottom of the stirring cabin 15 intermittently contact with the stirring cabin 15 when the contact spokes 23 rotate, so that the stirring cabin 15 moves under the action of a universal joint 8, and the spring 7 is driven to shrink or stretch, and the high-frequency vibration is generated.
Referring to fig. 1 and 7, the communicating base 22 is fixedly sleeved outside the sealing cover 14, one end of the communicating base 22 extends to the inner side of the sealing cover 14 and is fixedly sleeved with the uniformly distributed spraying head 21, when a small amount of raw materials are mixed, the fan 12 can be started and prepare a wind beam, then the wind beam is input into the interior of the communicating base 22 through the communicating pipe 24, the model of the fan 12 is CZR-LY60, the fan 12 is fixedly mounted at the top of the top plate 13, the communicating pipe 24 is connected between the fan 12 and the communicating base 22, the wind beam finally sprays the interior of the stirring cabin 15 through the spraying head 21 and acts on the raw materials, so that the raw materials are lifted in the stirring cabin 15, thereby assisting the mixing of a small amount of raw materials, reducing the working time of the stirring motor 16 and the vibration motor 2, and then reducing the energy consumption during the whole working of the device, the controller 10 positioned between the electric telescopic columns 11 is fixedly sleeved above the bottom plate 1, the controller 10 and the fan 12, the electric telescopic columns 11, the stirring motor 16 and the vibration motor 2 are electrically connected, the controller 10 can control the fan 12, the electric telescopic columns 16 and the stirring motor 16, the motor 2, the working time of the stirring motor 2, and the working principle of the whole device is not identical to the conventional technology, and the working principle of the whole device is used in the whole process.
Example 4
This example describes a method for preparing a lightweight high strength corundum mullite castable using the preparation apparatus of example 3, comprising the steps of:
s1, starting an electric telescopic column 11, wherein the electric telescopic column 11 drives a sealing cover 14 to move upwards through a driving shaft of the electric telescopic column, the top of a stirring cabin 15 is opened, corundum, mullite and other raw materials to be mixed are injected into the stirring cabin 15 according to a proportion, the electric telescopic column 11 is started again, the sealing cover 14 descends until the sealing cover 14 seals the top end of the stirring cabin 15, a stirring motor 16 is started, the stirring motor 16 drives a stirring column 19 to rotate through a movable column 18, then raw materials in the stirring cabin 15 are stirred and mixed, simultaneously the movable column 18 drives a packing auger disc 20 to rotate when rotating, and the packing auger disc 20 turns the raw materials upwards repeatedly when the raw materials accumulate at the bottom of the stirring cabin 15.
S2, when stirring and mixing work is carried out in the stirring cabin 15, the vibration motor 2 is started and drives the tray 4 and the contact spokes 23 to rotate through the output shaft of the vibration motor, the contact spokes 23 intermittently contact with the vibration spokes 17 at the bottom of the stirring cabin 15 when rotating, the stirring cabin 15 moves under the action of the universal joint 8 and drives the spring 7 to shrink or stretch to generate high-frequency vibration, and stirring and mixing work carried out in the stirring cabin 15 is assisted.
S3, when a small amount of raw materials are mixed, the fan 12 is started and used for preparing an air beam, then the air beam is input into the base 22 through the communicating pipe 24, and finally the air beam is sprayed into the stirring cabin 15 through the spraying head 21 and acts on the raw materials, so that the raw materials are lifted up in the stirring cabin 15 to assist in mixing a small amount of raw materials, the working time of the stirring motor 16 is shortened, meanwhile, when the fan 12 works, the air pressure in the stirring cabin 15 can be increased under the action of the air beam, and when the mixing work is completed and products are output outwards, the products can be discharged through the discharge valve 3, and the high pressure in the stirring cabin 15 can assist the discharge efficiency of the discharge valve 3.
Example 4
This embodiment differs from embodiment 1 in that:
a lightweight high-strength corundum-mullite castable comprises 15% of porous corundum-mullite ceramic particles, 25% of porous corundum-mullite ceramic fine powder, 20% of corundum fine powder, silicon dioxide micro powder and 15% of alpha-Al 2 O 3 Micropowder, 15% calcium aluminate cement, 5% ρ -Al 2 O 3 Binding agent, 10% silica fume superfine powder and the balance of silica sol.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present invention; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (3)
1. The preparation equipment of light high strength corundum mullite castable includes bottom plate (1), its characterized in that: the top of bottom plate (1) is fixedly provided with evenly distributed mount (6), and the top of bottom plate (1) is welded with support frame (9), the bottom of bottom plate (1) is provided with evenly distributed supporting leg (5), the inboard of mount (6) is provided with evenly distributed spring (7) and universal joint (8), movable sleeve has stirring cabin (15) between spring (7) and universal joint (8), the outside of stirring cabin (15) is provided with bleeder valve (3), the top fixed mounting of support frame (9) has roof (13), the outside fixed cover of roof (13) is equipped with evenly distributed electric telescopic post (11), the drive shaft of electric telescopic post (11) extends to the below of roof (13) and fixed cover is equipped with sealed lid (14);
the top of the bottom plate (1) is fixedly sleeved with a vibration motor (2), the outer part of an output shaft of the vibration motor (2) is fixedly sleeved with a tray (4), the tray (4) is sleeved outside the stirring cabin (15), and a gap is formed between the tray (4) and the stirring cabin (15);
the bottom of the stirring cabin (15) is fixedly provided with uniformly distributed vibration spokes (17), the inside of the tray (4) is fixedly sleeved with uniformly distributed contact spokes (23), and the vibration spokes (17) are mutually matched with the contact spokes (23);
the sealing cover (14) is matched with the stirring cabin (15), a stirring motor (16) is fixedly sleeved at the top of the sealing cover (14), an output shaft of the stirring motor (16) extends to the lower part of the sealing cover (14) and is fixedly sleeved with a movable column (18), and stirring columns (19) which are uniformly distributed are fixedly sleeved outside the movable column (18);
an auger disc (20) is fixedly sleeved at the bottom end of the movable column (18), and the bottom of the auger disc (20) is contacted with the bottom of the inner wall of the stirring cabin (15);
the outside fixed cover of sealed lid (14) is equipped with intercommunication base (22), the one end of intercommunication base (22) extends to the inboard of sealed lid (14) and fixed cover is equipped with evenly distributed's injection head (21), the top fixed mounting of roof (13) has fan (12), be connected with communicating pipe (24) between fan (12) and intercommunication base (22).
2. The lightweight high-strength corundum mullite castable apparatus as claimed in claim 1, characterized in that: the electric telescopic device is characterized in that a controller (10) positioned between the electric telescopic columns (11) is fixedly sleeved above the bottom plate (1), and the controller (10) is electrically connected with the fan (12), the electric telescopic columns (11), the stirring motor (16) and the vibration motor (2).
3. A method for preparing a lightweight high strength corundum mullite castable material by a preparation apparatus as claimed in any one of claims 1-2, comprising the steps of:
s1, starting an electric telescopic column (11), wherein the electric telescopic column (11) drives a sealing cover (14) to move upwards through a driving shaft of the electric telescopic column, the top of a stirring cabin (15) is opened, corundum and mullite to be mixed and other raw materials are injected into the stirring cabin (15) according to proportion, the electric telescopic column (11) is started again, the sealing cover (14) descends until the sealing cover (14) seals the top end of the stirring cabin (15), a stirring motor (16) is started, the stirring motor (16) drives a stirring column (19) to rotate through a movable column (18), raw materials in the stirring cabin (15) are stirred and mixed, and meanwhile, the movable column (18) drives an auger disc (20) to rotate when the raw materials accumulate at the bottom of the stirring cabin (15), and the auger disc (20) turns the raw materials upwards repeatedly;
s2, when stirring and mixing work is carried out in the stirring cabin (15), the vibration motor (2) is started and drives the tray (4) and the contact spokes (23) to rotate through the output shaft of the vibration motor, the contact spokes (23) intermittently contact with the vibration spokes (17) at the bottom of the stirring cabin (15) when rotating, the stirring cabin (15) moves under the action of the universal joint (8) and drives the spring (7) to shrink or stretch, high-frequency vibration is generated, and stirring and mixing work carried out in the stirring cabin (15) is assisted;
s3, when a small amount of raw materials are mixed, the fan (12) is started and used for preparing an air beam, then the air beam is input into the interior of the communication base (22) through the communication pipe (24), and finally the interior of the stirring cabin (15) is sprayed through the spraying head (21) to act on the raw materials, so that the raw materials are lifted up in the interior of the stirring cabin (15), the mixing of a small amount of raw materials is assisted, the working time of the stirring motor (16) is reduced, meanwhile, when the fan (12) works, the air pressure in the stirring cabin (15) can be increased under the action of the air beam, when the mixing work is completed and products are output outwards, the products can be discharged through the discharge valve (3), and the high pressure in the stirring cabin (15) can assist the discharge efficiency of the discharge valve (3).
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| CN115057694B (en) * | 2022-07-08 | 2023-03-14 | 河南正杰新材料科技有限公司 | Corundum-mullite castable for sintering machine air box and precast block prepared from corundum-mullite castable |
| CN115893994B (en) * | 2022-11-03 | 2023-12-08 | 中冶武汉冶金建筑研究院有限公司 | Rare earth oxide modified corundum-mullite castable and use method and application thereof |
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