CN113083429A - Preparation method of lightweight aggregate concrete - Google Patents
Preparation method of lightweight aggregate concrete Download PDFInfo
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- CN113083429A CN113083429A CN202110348766.9A CN202110348766A CN113083429A CN 113083429 A CN113083429 A CN 113083429A CN 202110348766 A CN202110348766 A CN 202110348766A CN 113083429 A CN113083429 A CN 113083429A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/40—Detachers, e.g. scrapers
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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
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Food Science & Technology (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to a method for preparing lightweight aggregate concrete, which uses a machine for preparing the lightweight aggregate concrete: this machinery includes basement, L type fixed plate, breaker and screening plant, the left and right sides symmetry at up end middle part of the basement be fixed with L type fixed plate, even have breaker between the upper end of L type fixed plate, breaker's below is provided with the screening plant, the screening plant is installed on L type fixed plate. The invention can solve the problems that when the traditional lightweight aggregate concrete is prepared, the common fly ash has larger particles and contains partial impurities, the concrete setting time is prolonged, the strength of the lightweight aggregate concrete is reduced, and when one fly ash of the lightweight aggregate concrete raw materials is prepared, more fly ash often remains on a preparation machine, the acquisition amount of the fly ash is influenced, the preparation efficiency is reduced, the economic benefit is poor and the like.
Description
Technical Field
The invention relates to the technical field of concrete preparation, in particular to a preparation method of lightweight aggregate concrete.
Background
The lightweight aggregate concrete is also called lightweight concrete, and is structural lightweight concrete which is prepared from lightweight coarse aggregates (ceramsite), common sand, cement and water and has the strength grade of LC15-LC 60. The lightweight aggregate concrete has the characteristics of light dead weight, high strength, heat preservation, heat insulation, shock resistance, impermeability and the like, and can reduce the dead weight by more than 20-30% compared with the common concrete with the same grade. The lightweight aggregate concrete is widely applied to industrial and civil buildings and other projects, and can reduce the self weight of the structure; the anti-seismic performance of the structure is improved; the material consumption is saved; the component transportation and hoisting efficiency is improved; reducing foundation load and improving building functions (heat preservation, heat insulation, fire resistance and the like).
At present, when lightweight aggregate concrete is prepared, the following defects generally exist: 1. when the traditional lightweight aggregate concrete is prepared, the fly ash is usually added in the process of stirring raw materials to enhance the strength of the lightweight aggregate concrete so as to densify the initial structure of the concrete, and the common fly ash with larger particles and containing part of impurities can prolong the setting time of the concrete and reduce the strength of the lightweight aggregate concrete; 2. when one of the raw materials of the lightweight aggregate concrete is prepared from the fly ash, more fly ash often remains on a preparation machine, the acquisition amount of the fly ash is influenced, and the preparation efficiency is reduced, so that the economic benefit is poor.
Disclosure of Invention
Technical problem to be solved
The invention can solve the problems that when the traditional lightweight aggregate concrete is prepared, the fly ash is usually added in the process of stirring the raw materials to enhance the strength of the lightweight aggregate concrete so as to densify the initial structure of the concrete, the setting time of the concrete is prolonged and the strength of the lightweight aggregate concrete is reduced due to the fact that the common fly ash has larger particles and contains part of impurities, and when one fly ash of the lightweight aggregate concrete raw materials is prepared, more fly ash often remains on a preparation machine to influence the acquisition amount of the fly ash and reduce the preparation efficiency, so that the economic benefit is poor and the like.
(II) technical scheme
In order to achieve the purpose, the invention adopts the following technical scheme that the method for preparing the lightweight aggregate concrete uses a machine for preparing the lightweight aggregate concrete: this machinery includes basement, L type fixed plate, breaker and screening plant, the left and right sides symmetry at up end middle part of the basement be fixed with L type fixed plate, even have breaker between the upper end of L type fixed plate, breaker's below is provided with the screening plant, the screening plant is installed on L type fixed plate.
The basement include PMKD, the slide rail, the collecting box, rubbing crusher constructs and installation pole, the front side at PMKD up end middle part is fixed with the slide rail, it is provided with the collecting box to slide on the slide rail, the top of collecting box is provided with rubbing crusher constructs, rubbing crusher constructs and sets up on the installation pole, the front and back both sides at PMKD up end middle part are fixed to the installation pole, concrete during operation, carry out fine grinding to the fly ash fragment that slides down from the feeding frame through rubbing crusher constructs, and collect in the collection box flows into, after the processing is accomplished, take out the collecting box along the slide rail and take out powdered fly ash wherein, add in the stirring of lightweight aggregate concrete raw materials, prepare lightweight aggregate concrete again.
The crushing device comprises a fixed frame, a first rotating shaft, a rotating roller, broken fragments, a first gear, a driving motor and a material removing mechanism, wherein the fixed frame is connected between the upper ends of L-shaped fixed plates, the left side and the right side in the fixed frame are symmetrically provided with the first rotating shaft through bearings, the middle part of the first rotating shaft is fixedly provided with the rotating roller, the broken fragments are uniformly arranged on the outer wall of the rotating roller, the rear end of the first rotating shaft is connected with the first gear, the first gears are mutually meshed, the middle part of the right end of the first gear on the right side is connected with an output shaft of the driving motor, the driving motor is arranged on the fixed frame through a motor base, the material removing mechanism is uniformly arranged on the upper side of the inner wall of the left side and the right side of the fixed frame, the pulverized fuel ash fragments are poured into the fixed frame from the upper part during specific, the rotating rollers on the left side and the right side are driven to rotate inwards through the first rotating shaft, further crushing treatment is carried out on the pulverized fuel ash fragments through the crushed fragments, the crushed fragments fall into the screening mechanism for further screening treatment, and the crushed fragments which are possibly sticky are treated through the material removing mechanism in the crushing synchronization.
The screening device comprises a driving motor, a circular plate, an arc-shaped lug, a screening mechanism and a feeding frame, wherein a motor fixing seat is fixed on the upper side of a left L-shaped fixing plate, the driving motor is installed on the motor fixing seat, the circular plate is connected to an output shaft of the driving motor, the arc-shaped lug is evenly installed on the side wall of the circular plate along the circumferential direction of the circular plate, the screening mechanism is installed on the L-shaped fixing plate and is arranged close to the right side of the circular plate, the feeding frame is arranged below the screening mechanism and is installed in the middle between the L-shaped fixing plates, during specific work, smaller pulverized fuel ash fragments after being crushed fall onto the screening mechanism, the circular plate is driven to rotate by the driving motor, when the top end of the arc-shaped lug is gradually contacted with the screening mechanism, the screening mechanism is pushed to move rightwards, when the top end of the arc-shaped lug is gradually far away from the screening mechanism, the screening mechanism resets, and pulverized fuel, screening the fly ash with smaller diameter as much as possible, wherein the fly ash flows into the feeding frame after being screened out and flows into the crushing mechanism through the feeding frame for treatment.
The screening mechanism comprises a sliding rod, a connecting frame, a first screening plate, a second screening plate, a connecting spring and a working frame, wherein the sliding rod is arranged on the upper side of an L-shaped fixing plate in a sliding manner, the left end of the left sliding rod abuts against the side wall of the circular plate, the connecting frame is arranged at one end, close to the fixing frame, of the sliding rod, the first screening plate is in threaded connection with the upper side of the connecting frame, the second screening plate is in threaded connection with the lower side of the connecting frame, the right end of the right sliding rod is connected with the working frame through the connecting spring, the working frame is arranged on the upper side of the right L-shaped fixing plate, during specific work, the circular plate is driven to rotate through a driving motor, when the top end of the arc-shaped bump is gradually contacted with the screening mechanism, the left sliding rod is pushed to move rightwards, the connecting frame drives the first screening plate and the second screening plate to move rightwards, when the top of arc lug was gradually kept away from with screening mechanism, under the elastic force of connecting spring, promoted the slide bar on right side and reset, and then made whole mechanism reset, repeated above-mentioned step to make whole screening mechanism do the reciprocating motion of left right direction, and then sieve the fly ash on screening board and No. two screening boards and handle.
The preparation of the lightweight aggregate concrete by adopting the machine also comprises the following steps:
s1, crushing raw materials: pouring a raw material of the fly ash into the fixed frame, crushing the fly ash by the crushing device, and synchronously scraping the raw material attached to the crushing device;
s2, screening: the crushed fragments are screened by the screening device, and the pulverized fuel ash is more easily crushed into small fragments, so that the pulverized fuel ash falls into the crushing mechanism for crushing after being screened by the screening device;
s3, crushing treatment: crushing the blocky fly ash by a crushing mechanism, dropping the crushed blocky fly ash into a collecting box for collection, and after the collection is finished, drawing out the collecting box to take the powdery fly ash;
s4, stirring preparation: the raw materials prepared from the powdery fly ash, the light coarse aggregate, the cement, the water and the like are poured into a stirring mechanism for fully stirring, then the raw materials are subjected to molding treatment, cooled and molded, and then taken out for use.
Preferably, the crushing mechanism comprises a second rotating shaft, crushing rollers, a cleaning rod, a connecting spring, a working rod, a connecting rod, a second gear and a driving motor, the second rotating shaft is symmetrically and rotatably arranged on the left side and the right side of the upper side of the mounting rod, the crushing rollers are fixed in the middle of the second rotating shaft, the crushing rollers on the left side and the right side are tightly attached together, the cleaning rod is tightly attached to the outer wall of the left side of the left crushing roller and the outer wall of the side end of the right crushing roller and is connected with a groove through the connecting spring, the groove is formed in one end, close to the crushing roller, of the working rod, the working rod is slidably arranged on the upper side of the mounting rod, the front end of the working rod is connected through the connecting rod, the second gear, and the second gears are meshed with each other, the middle part of the second gear on the left side is connected with an output shaft of the driving motor, and the driving motor is fixed on the fixed bottom plate through the motor mounting seat.
Preferably, remove the material mechanism include the arc wall, remove flitch and reset spring, the arc wall has evenly been seted up to the inner wall upside of the fixed frame left and right sides, install through the round pin axle in the arc wall and remove the flitch, remove the flitch and be close to the one end of live-rollers and hug closely on the live-rollers, remove the lower extreme middle part of flitch and pass through reset spring and the interior wall connection of fixed frame.
Preferably, the left end of the sliding rod on the left side is provided with a limiting groove, the circular plate is positioned in the limiting groove, and the movement of the circular plate and the sliding rod is limited to prevent the movement from being inclined.
Preferably, the front end of clearance pole be the trapezium structure, promote the clearance pole to move to the recess internal motion when being convenient for carry on self-cleaning, clear up the residue on the clearance pole.
Preferably, the diameter of the screening hole of the first screening plate is larger than that of the second screening plate, and the screening effect is ensured through multi-stage screening.
(III) advantageous effects
1. According to the preparation method of the lightweight aggregate concrete, the fly ash fine treatment mechanism with higher mechanization degree is designed for preparing the lightweight aggregate concrete, the fly ash can be subjected to fine treatment by a treatment method of crushing, screening and crushing, the concrete setting time is shortened, the strength of the lightweight aggregate concrete is increased, and meanwhile, the residue of the fly ash is also avoided;
2. according to the preparation method of the lightweight aggregate concrete, impurities in the fly ash are separated through the sequential multi-stage treatment of the crushing device, the screening device and the crushing mechanism, so that the purity of the fly ash is improved, the diameter of the fly ash can be reduced, the fly ash is more soluble in the stirred raw materials, and the effect of the fly ash during the preparation of the lightweight aggregate concrete is fully exerted;
3. according to the preparation method of the lightweight aggregate concrete, the fly ash residue which may occur during crushing and smashing is treated through the material removing mechanism and the smashing mechanism, so that the fly ash residue is avoided on treatment equipment, the acquisition amount of the fly ash is ensured, and the preparation efficiency is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of the operation of the present invention;
FIG. 2 is a schematic view of a first perspective structure of the present invention;
FIG. 3 is a second perspective view of the present invention;
FIG. 4 is a schematic perspective view of a portion of the shredder mechanism of the present invention;
FIG. 5 is a cross-sectional view of the present invention;
FIG. 6 is an enlarged view of a portion of the invention at X of FIG. 4;
FIG. 7 is an enlarged view of a portion of the invention at Y of FIG. 5;
FIG. 8 is an enlarged view of a portion of the invention at Z in FIG. 5.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 8, a lightweight aggregate concrete manufacturing method uses a lightweight aggregate concrete manufacturing machine: this machinery includes basement 1, L type fixed plate 2, breaker 3 and screening plant 4, the left and right sides symmetry at 1 up end middle part of basement be fixed with L type fixed plate 2, even have breaker 3 between the upper end of L type fixed plate 2, the below of breaker 3 is provided with screening plant 4, screening plant 4 installs on L type fixed plate 2.
The base 1 comprises a fixed base plate 11, a slide rail 12, a collecting box 13, a crushing mechanism 14 and a mounting rod 15, wherein the slide rail 12 is fixed on the front side of the middle part of the upper end face of the fixed base plate 11, the collecting box 13 is arranged on the slide rail 12 in a sliding mode, the crushing mechanism 14 is arranged above the collecting box 13, the crushing mechanism 14 is arranged on the mounting rod 15, the mounting rod 15 is fixed on the front side and the rear side of the middle part of the upper end face of the fixed base plate 11, during specific work, pulverized coal ash fragments sliding down from a feeding frame 45 are finely crushed through the crushing mechanism 14 and flow into the collecting box 13 to be collected, after treatment is completed, the collecting box 13 is drawn out along the slide rail 12 and the pulverized coal ash in the collecting box is taken out and added into the stirring of a light aggregate concrete raw material.
The crushing mechanism 14 comprises a second rotating shaft 141, crushing rollers 142, a cleaning rod 143, a connecting spring 144, a working rod 145, a connecting rod 146, a second gear 147 and a driving motor 148, the second rotating shaft 141 is symmetrically and rotatably arranged on the left side and the right side of the upper side of the mounting rod 15, the crushing rollers 142 are fixed in the middle of the second rotating shaft 141, the crushing rollers 142 on the left side and the right side are clung together, the cleaning rod 143 is clung to the outer wall of the left side of the left crushing roller 142 and the outer wall of the side end of the right crushing roller 142, the cleaning rod 143 is connected with a groove through the connecting spring 144, the groove is arranged at one end of the working rod 145 close to the crushing rollers 142, the working rod 145 is slidably arranged on the upper side of the mounting rod 15, the front end of the working rod 145 is connected through the connecting rod 146, the second gear 147 is arranged at the rear end of the second rotating shaft 141, the second gears 147 are meshed with each other, the, the driving motor 148 is fixed on the fixed bottom plate 11 through a motor mounting seat; the front end of the cleaning rod 142 is in a trapezoid structure, so that the cleaning rod 142 is pushed to move towards the groove during self-cleaning, residues on the cleaning rod 142 are cleaned, during specific work, the motor 148 is driven to drive the second gear 147 on the left side to rotate, and then the second gear 147 on the right side is synchronously driven to rotate, at the moment, the second rotating shaft 141 synchronously rotates, the crushing roller 142 is driven to synchronously rotate inwards through the second rotating shaft 141 to treat crushed fly ash flowing down on the feeding frame 45, during crushing, the residues on the crushing roller 142 are scraped through the cleaning rod 143, under the elastic action of the connecting spring 144, the cleaning rod 143 is always attached to the outer wall of the crushing roller 142 to work, and further the scraping effect is ensured, after the crushing treatment is completed, the connecting rod 146 is pulled forwards, and then the working rod 145 is synchronously driven to synchronously move forwards, and the cleaning rod 143 is synchronously driven to move forwards, at this time, the front end of the cleaning rod 143 gradually contacts the mounting rod 15, and the front end of the cleaning rod 142 is in a trapezoidal structure, so that the cleaning rod 142 is gradually pushed to move towards the inner direction of the groove, sticky residues at the lower end of the cleaning rod 142 contact the groove, the residues on the cleaning rod 142 are scraped, residues are further avoided, and the amount of fly ash powder is ensured.
The crushing device 3 comprises a fixing frame 31, a first rotating shaft 32, a rotating roller 33, fragment crushing blocks 34, a first gear 35, a driving motor 36 and a material removing mechanism 37, wherein the fixing frame 31 is connected between the upper ends of the L-shaped fixing plates 2, the first rotating shaft 32 is symmetrically arranged on the left side and the right side in the fixing frame 31 through bearings, the rotating roller 33 is fixed in the middle of the first rotating shaft 32, the fragment crushing blocks 34 are uniformly arranged on the outer wall of the rotating roller 33, the first gear 35 is connected to the rear end of the first rotating shaft 32, the first gears 35 are mutually meshed, the middle part of the right end of the first gear 35 on the right side is connected with an output shaft of the driving motor 36, the driving motor 36 is arranged on the fixing frame 31 through a motor base, the material removing mechanism 37 is uniformly arranged on the upper sides of the inner walls on the left side and the right side of the fixing frame 31, during specific work, and then the first gear 35 on the right synchronously drives the first gear 35 on the left to rotate, and simultaneously drives the rotating rollers 33 on the left and the right to rotate inwards through the first rotating shaft 32, further crushing the pulverized fuel ash fragments through the fragment crushing mechanism 34, dropping the crushed fragments onto the screening mechanism 44 for further screening treatment, and treating the fragments which are possibly sticky on the crushing block 34 through the material removing mechanism 37 in the crushing synchronization.
Remove material mechanism 37 include arc wall 371, remove material board 372 and reset spring 373, arc wall 371 has evenly been seted up to the inner wall upside of the fixed frame 31 left and right sides, install through the round pin axle in arc wall 371 and remove material board 372, the one end that removes material board 372 and be close to live-rollers 33 is hugged closely on live-rollers 33, the lower extreme middle part that removes material board 372 passes through reset spring 373 and the interior wall connection of fixed frame 31, in concrete during operation, when breaker 3 is carrying out the breakage, under reset spring 373's elastic action, remove material board 372 and hug closely the surface at live-rollers 33 all the time, when carrying out the breakage, remove material board 372 and also contact with broken piece 34, and strike off the residue on the broken piece 34.
The screening device 4 comprises a driving motor 41, a circular plate 42, an arc-shaped bump 43, a screening mechanism 44 and a feeding frame 45, wherein a motor fixing seat is fixed on the upper side of the L-shaped fixing plate 2 on the left side, the driving motor 41 is installed on the motor fixing seat, the circular plate 42 is connected to an output shaft of the driving motor 41, the arc-shaped bump 43 is evenly installed on the side wall of the circular plate 42 along the circumferential direction of the circular plate, the screening mechanism 44 is abutted against the right side of the circular plate 42, the screening mechanism 44 is installed on the L-shaped fixing plate 2, the feeding frame 45 is arranged below the screening mechanism 44, the feeding frame 45 is installed in the middle part between the L-shaped fixing plates 2, during specific work, small pulverized coal ash fragments which are crushed fall onto the screening mechanism 44, the circular plate 42 is driven to rotate by the driving motor 41, when the top end of the arc-shaped bump 43 is gradually contacted with the screening mechanism 44, the screening mechanism 44 is pushed to move right, the sieving mechanism 44 is reset, the fly ash and the impurities on the sieving mechanism 44 are sieved through the reciprocating motion, the fly ash with smaller diameter is sieved as much as possible, and the fly ash flows into the feeding frame 45 after being sieved and flows into the crushing mechanism 14 through the feeding frame 45 for treatment.
The screening mechanism 44 comprises a sliding rod 441, a connecting frame 442, a first screening plate 443, a second screening plate 444, a connecting spring 445 and a working frame 446, the sliding rod 441 is slidably arranged on the upper side of the L-shaped fixing plate 2, the left end of the sliding rod 441 on the left side abuts against the side wall of the circular plate 42, the connecting frame 442 is installed at one end, close to the fixing frame 31, of the sliding rod 441, the first screening plate 443 is connected to the upper side of the connecting frame 442 in a threaded manner, the second screening plate 444 is connected to the lower side of the connecting frame 442 in a threaded manner, the right end of the sliding rod 441 on the right side is connected with the working frame 446 through the connecting spring 445, and the working frame 446 is installed on the upper; a limiting groove is formed in the left end of the sliding rod 441 on the left side, the circular plate 42 is positioned in the limiting groove, and the movement of the circular plate 42 and the sliding rod 441 is limited to prevent the movement from being inclined; the diameter of the screening hole of the first screening plate 443 is larger than that of the second screening plate 444, the multi-stage screening ensures the screening effect, and when the multi-stage screening device works, the circular plate 42 is driven to rotate by driving the motor 41, when the top end of the arc-shaped projection 43 is gradually contacted with the sieving mechanism 44, the left sliding rod 441 is pushed to move to the right, thereby causing the connecting frame 442 to move the first sieving plate 443 and the second sieving plate 444 to the right, and at the same time, the right slide rod 441 is pushed to move rightward to press the connection spring 445, and when the top end of the arc-shaped projection 43 is gradually separated from the sieving mechanism 44, the right sliding rod 441 is pushed to reset under the elastic force of the connecting spring 445, and the whole mechanism is reset, and the above steps are repeated, so that the whole screening mechanism 44 reciprocates in the left-right direction, and then the fly ash on the first screening plate 443 and the second screening plate 444 is screened.
The preparation of the lightweight aggregate concrete by adopting the machine also comprises the following steps:
s1, crushing raw materials: pouring the raw material of the fly ash into the fixed frame 31, crushing the raw material by the crushing device 3, and synchronously scraping the raw material attached to the crushing device 3;
s2, screening: the crushed fragments are screened by the screening device 4, and the pulverized fuel ash is more easily crushed into small fragments, so that the pulverized fuel ash falls into the crushing mechanism 14 for crushing after being screened by the screening device 4;
s3, crushing treatment: crushing the blocky fly ash by using a crushing mechanism 14, collecting the blocky fly ash by dropping the blocky fly ash into a collecting box 13, and after the collection is finished, drawing out the collecting box 13 to take the powdery fly ash;
s4, stirring preparation: the raw materials prepared from the powdery fly ash, the light coarse aggregate, the cement, the water and the like are poured into a stirring mechanism for fully stirring, then the raw materials are subjected to molding treatment, cooled and molded, and then taken out for use.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A method for preparing lightweight aggregate concrete, which uses a machine for preparing lightweight aggregate concrete: this machinery includes basement (1), L type fixed plate (2), breaker (3) and screening plant (4), its characterized in that: l-shaped fixing plates (2) are symmetrically fixed on the left side and the right side of the middle part of the upper end face of the substrate (1), a crushing device (3) is connected between the upper ends of the L-shaped fixing plates (2), a screening device (4) is arranged below the crushing device (3), and the screening device (4) is installed on the L-shaped fixing plates (2);
the base (1) comprises a fixed bottom plate (11), a sliding rail (12), a collecting box (13), a crushing mechanism (14) and a mounting rod (15), the sliding rail (12) is fixed on the front side of the middle of the upper end face of the fixed bottom plate (11), the collecting box (13) is arranged on the sliding rail (12) in a sliding mode, the crushing mechanism (14) is arranged above the collecting box (13), the crushing mechanism (14) is arranged on the mounting rod (15), and the mounting rod (15) is fixed on the front side and the rear side of the middle of the upper end face of the fixed bottom plate (11);
the crushing device (3) comprises a fixed frame (31), a first rotating shaft (32), a rotating roller (33), a crushing block (34), a first gear (35), a driving motor (36) and a material removing mechanism (37), a fixing frame (31) is connected between the upper ends of the L-shaped fixing plates (2), first rotating shafts (32) are symmetrically arranged on the left side and the right side in the fixing frame (31) through bearings, rotating rollers (33) are fixed in the middle of the first rotating shafts (32), broken pieces (34) are uniformly arranged on the outer walls of the rotating rollers (33), first gears (35) are connected to the rear ends of the first rotating shafts (32), the first gears (35) are mutually meshed, the middle of the right end of the first gear (35) on the right side is connected with an output shaft of a driving motor (36), the driving motor (36) is arranged on the fixing frame (31) through a motor base, and material removing mechanisms (37) are uniformly arranged on the upper sides of the inner walls on the left side and the right side;
the screening device (4) comprises a driving motor (41), a circular plate (42), an arc-shaped convex block (43), a screening mechanism (44) and a feeding frame (45), a motor fixing seat is fixed on the upper side of the left L-shaped fixing plate (2), the driving motor (41) is installed on the motor fixing seat, the circular plate (42) is connected onto an output shaft of the driving motor (41), the arc-shaped convex block (43) is evenly installed on the side wall of the circular plate (42) along the circumferential direction of the circular plate, the screening mechanism (44) abuts against the right side of the circular plate (42), the screening mechanism (44) is installed on the L-shaped fixing plate (2), the feeding frame (45) is arranged below the screening mechanism (44), and the feeding frame (45) is installed in the middle part between the L-shaped fixing plates (;
the screening mechanism (44) comprises a sliding rod (441), a connecting frame (442), a first screening plate (443), a second screening plate (444), a connecting spring (445) and a working frame (446), the sliding rod (441) is arranged on the upper side of the L-shaped fixing plate (2) in a sliding mode, the left end of the sliding rod (441) on the left side abuts against the side wall of the circular plate (42), the connecting frame (442) is installed at one end, close to the fixing frame (31), of the sliding rod (441), the first screening plate (443) is connected to the upper side of the connecting frame (442) in a threaded mode, the second screening plate (444) is connected to the lower side of the connecting frame (442) in a threaded mode, the right end of the sliding rod (441) on the right side is connected with the working frame (446) through the connecting spring (445), and the working frame (446) is installed on the upper side;
the preparation of the lightweight aggregate concrete by adopting the machine also comprises the following steps:
s1, crushing raw materials: pouring the raw material of the fly ash into the fixed frame (31), crushing the fly ash by the crushing device (3), and synchronously scraping the raw material attached to the crushing device (3);
s2, screening: the crushed fragments are screened by the screening device (4), and the pulverized fuel ash is more easily crushed into small fragments, so that the pulverized fuel ash falls into the crushing mechanism (14) for crushing after being screened by the screening device (4);
s3, crushing treatment: crushing the blocky fly ash by a crushing mechanism (14), dropping the crushed blocky fly ash into a collection box (13) for collection, and after the collection is finished, drawing out the collection box (13) to take the powdery fly ash;
s4, stirring preparation: the raw materials prepared from the powdery fly ash, the light coarse aggregate, the cement, the water and the like are poured into a stirring mechanism for fully stirring, then the raw materials are subjected to molding treatment, cooled and molded, and then taken out for use.
2. A method for preparing lightweight aggregate concrete according to claim 1, characterized in that: the crushing mechanism (14) comprises a second rotating shaft (141), crushing rollers (142), cleaning rods (143), connecting springs (144), a working rod (145), a connecting rod (146), a second gear (147) and a driving motor (148), the second rotating shaft (141) is symmetrically and rotatably arranged on the left side and the right side of the upper side of the mounting rod (15), the crushing rollers (142) are fixed in the middle of the second rotating shaft (141), the crushing rollers (142) on the left side and the right side are tightly attached together, the cleaning rods (143) are tightly attached to the outer walls of the left side and the right side of the left side crushing roller (142), the cleaning rods (143) are connected with grooves through the connecting springs (144), the grooves are formed in one ends, close to the crushing rollers (142), of the working rod (145), the working rod (145) is slidably arranged on the upper side of the mounting rod (15), the front ends of the working rods (145) are connected through the connecting rod (146), no. two gears (147) are installed at the rear end of the second rotating shaft (141), the second gears (147) are meshed with each other, the middle of the second gear (147) on the left side is connected with an output shaft of a driving motor (148), and the driving motor (148) is fixed on the fixed bottom plate (11) through a motor mounting seat.
3. A method for preparing lightweight aggregate concrete according to claim 1, characterized in that: remove material mechanism (37) including arc wall (371), remove flitch (372) and reset spring (373), arc wall (371) have evenly been seted up to the inner wall upside of fixed frame (31) left and right sides, install through the round pin axle in arc wall (371) and remove flitch (372), remove flitch (372) and be close to the one end of live-rollers (33) and hug closely on live-rollers (33), remove the lower extreme middle part of flitch (372) and pass through the wall connection of reset spring (373) with fixed frame (31).
4. A method for preparing lightweight aggregate concrete according to claim 1, characterized in that: the left end of the sliding rod (441) on the left side is provided with a limiting groove, and the circular plate (42) is positioned in the limiting groove.
5. A method for preparing lightweight aggregate concrete according to claim 2, characterized in that: the front end of the cleaning rod (142) is of a trapezoidal structure.
6. A method for preparing lightweight aggregate concrete according to claim 1, characterized in that: the diameter of the screening hole of the first screening plate (443) is larger than that of the second screening plate (444).
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