CN116373115A - Recycled concrete and preparation method thereof - Google Patents
Recycled concrete and preparation method thereof Download PDFInfo
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- CN116373115A CN116373115A CN202310277141.7A CN202310277141A CN116373115A CN 116373115 A CN116373115 A CN 116373115A CN 202310277141 A CN202310277141 A CN 202310277141A CN 116373115 A CN116373115 A CN 116373115A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000002156 mixing Methods 0.000 claims abstract description 40
- 238000000227 grinding Methods 0.000 claims abstract description 31
- 238000003756 stirring Methods 0.000 claims abstract description 24
- 239000000843 powder Substances 0.000 claims abstract description 21
- 239000004576 sand Substances 0.000 claims abstract description 14
- 239000004568 cement Substances 0.000 claims abstract description 7
- 239000010881 fly ash Substances 0.000 claims abstract description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 7
- 239000011707 mineral Substances 0.000 claims abstract description 7
- 239000004575 stone Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000033001 locomotion Effects 0.000 description 13
- 239000002699 waste material Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
-
- 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
- B28C5/006—Methods for mixing involving mechanical aspects
-
- 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
- B28C5/0806—Details; Accessories
-
- 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
- B28C5/0806—Details; Accessories
- B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
-
- 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
-
- 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
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- 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)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of concrete preparation, in particular to recycled concrete and a preparation method thereof, comprising the following steps: s1: firstly, putting the regenerated coarse aggregate into a mixing grinding device for grinding and mixing; s2: after the recycled coarse aggregate is ground into powder, sequentially placing cement, coarse yellow sand, fine yellow sand, fly ash and mineral powder into a mixing grinding device; s3: adding natural stone into the mixing and grinding device for mixing and stirring; the mixing and grinding device in S1 comprises a bracket, because of the rotation of the double helix, the materials move circularly along the wall of the cone, the powder is discharged to the center of the cone to move radially by utilizing the autorotation effect of the helical blade, and the materials are discharged from the bottom of the cone to the upward flow and the outer circumferential surface of the helix, namely, the materials are mixed in the direction of the helical shaft, so that the materials can be mixed uniformly in the cylinder rapidly.
Description
Technical Field
The invention relates to the technical field of concrete preparation, in particular to recycled concrete and a preparation method thereof.
Background
With the vigorous development of commercial concrete in China, the concrete industry is already the pillar industry in the field of building materials. However, concrete is used as the largest man-made engineering material, and once a building or structure is disassembled, it becomes the "main force" of construction waste accordingly. At present, the annual emission of concrete wastes in China exceeds one hundred million tons, and most of the waste concrete cannot be recycled in the past, and a large amount of sites are needed to treat building wastes (stacked or buried), so that the existing recycled concrete preparation device mixes materials in a charging barrel, and the materials with different densities are mixed, so that layering phenomenon is easy to occur when specific gravity is greatly different than that of a special mixed material in the device, and the materials are unevenly mixed, so that the recycled concrete and the preparation method thereof are provided.
Disclosure of Invention
The invention aims to solve the defect that the recycled concrete and a preparation method thereof are uneven in material mixing caused by the fact that the recycled concrete preparation device is used for mixing various materials with different densities and the phenomenon that the materials are layered easily when the specific gravity is different than that of a special mixed material in the device is solved.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the design and preparation method of the recycled concrete comprises the following steps:
s1: firstly, putting the recycled coarse aggregate into a mixing grinding device for grinding and mixing, wherein the treatment time is 10-15min, and the temperature is 80-90 ℃;
s2: after the recycled coarse aggregate is ground into powder, sequentially placing cement, coarse yellow sand, fine yellow sand, fly ash and mineral powder into a mixing grinding device, wherein the stirring time is 20-25min, and the temperature is 85-90 ℃;
s3: adding natural stone into the mixing and grinding device for mixing and stirring for 15-20min at 60-70deg.C;
s4: after the step S3 is completed, sequentially adding water and an additive to carry out final stirring, wherein the stirring time is 50-60min, the stirring temperature is 60-70 ℃, stopping the machine, and discharging the mixed recycled concrete from the mixing and grinding device for use;
the mixing grinding device in S1 comprises a support, wherein a cylinder is fixedly arranged at the top of the support, the cylinder is arranged in an inverted round table shape, the inside of the cylinder is hollow, the cylinder is made of a heat conducting material, a heating mechanism is arranged in the cylinder, the heating mechanism is located in the hollow position inside the cylinder, and an opening is formed in the upper end of the cylinder.
Preferably, the inner side of the upper end of the cylinder body is fixedly provided with an annular support, the upper end in the cylinder body is provided with a support, an annular gap is arranged between the support and the annular support, a plurality of connecting frames distributed in a circumferential array are fixedly arranged on the outer side of the support, and the end parts of the connecting frames are fixedly connected on the inner side of the annular support.
Still include first screw rod, second screw rod, actuating mechanism, discharging pipe and valve, first screw rod and second screw rod all set up in the barrel, actuating mechanism installs on barrel and support, first screw rod and second screw rod all link to each other with actuating mechanism, discharging pipe fixed mounting is in barrel bottom and with barrel intercommunication, the valve is installed on the discharging pipe, first screw rod and second screw rod set up both sides and all slope setting in the barrel, first screw rod and second screw rod slope opposite orientation.
Preferably, the heating mechanism comprises a heating plate, the heating plate is arranged at a hollow position inside the cylinder body, the heating plate is attached to the cylinder body and fixedly connected with the cylinder body, and a wire inlet hole for the heating plate is formed in the cylinder body.
Preferably, the driving mechanism comprises a carrier plate, the carrier plate links firmly on the support, the rotatable center pin that installs in carrier plate bottom, center pin lower extreme fixed mounting has the center wheel, the carrier plate lower extreme is equipped with the movable frame, the center pin lower extreme runs through the movable frame and rotatable installs on the movable frame, center wheel outside cover is equipped with outer ring gear, movable frame and center wheel all set up in the barrel, outer ring gear fixed mounting has a plurality of dead levers that are circumference array distribution, the dead lever upper end links firmly in carrier plate bottom, the planet axle is all rotatable to install in movable frame bottom both ends, both sides the lower extreme of planet axle all runs through outer ring gear, all fixed mounting has the planet wheel on the planet axle, both sides the planet wheel is located the center wheel both sides and all is located the outer ring gear inboard, the planet wheel meshes with its adjacent outer ring gear and center wheel, the equal fixed mounting of planet axle bottom has first bevel gear.
Preferably, the rotatable seat that installs in support plate bottom, the last fixed mounting of rotating seat has two symmetrical distribution's mounting bracket, first screw rod upper end fixed mounting has first connecting axle, first connecting axle rotatable mounting is on the mounting bracket of homonymy, fixed mounting has the second bevel gear on the first connecting axle, both sides all rotatable mounting has the transmission shaft on the mounting bracket, two the equal fixed mounting of opposite end of transmission shaft has the third bevel gear, is located the homonymy the third bevel gear meshes with first bevel gear, the equal fixed mounting of the other end of transmission shaft has the fourth bevel gear, is located one side the fourth bevel gear meshes with the second bevel gear, second screw rod upper end fixed mounting has the second connecting axle, second connecting axle upper end rotatable mounting is on the mounting bracket of homonymy, fixed mounting has the fifth bevel gear on the second connecting axle, the fifth bevel gear meshes with the fourth bevel gear of its homonymy.
Preferably, the device further comprises a liquid injection mechanism, wherein the liquid injection mechanism is arranged in the annular support and is positioned at the upper end of the support.
Preferably, the liquid injection mechanism comprises a movable seat, the movable seat is arranged in an annular support, the annular support is rotatably arranged in the movable seat, a driven gear ring is sleeved outside the annular support and fixedly arranged on the annular support, a plurality of cylinders distributed in a circumferential array are fixedly arranged at the top of the movable seat, the bottoms of the cylinders are communicated and fixedly arranged with liquid discharge pipes, and the lower ports of the liquid discharge pipes face to a gap between the annular support and the support.
Preferably, the device further comprises a linkage mechanism, wherein the linkage mechanism is arranged on the cylinder body and connected with the carrier plate.
Preferably, the linkage mechanism comprises a linkage shaft, the linkage shaft is rotatably mounted on the cylinder body, a driving wheel is fixedly mounted on the linkage shaft, the driving wheel is meshed with the driven gear ring, a motor frame is fixedly mounted on the support, a servo motor is fixedly mounted on the motor frame, a driving shaft is fixedly mounted at the output shaft end of the servo motor, the lower end of the driving shaft is rotatably mounted on the carrier plate and fixedly connected with the central shaft, and a belt mechanism is mounted between the driving shaft and the linkage shaft.
Preferably, the recycled concrete is prepared from the following raw materials in parts by weight: 11-13 parts of recycled concrete aggregate, 5-9 parts of cement, 3-4 parts of coarse yellow sand, 2-3 parts of fine yellow sand, 0.8-1.2 parts of fly ash, 0.3-0.5 part of mineral powder and 6-8 parts of natural stone.
The recycled concrete and the preparation method thereof provided by the invention have the beneficial effects that: through setting up first screw rod and second screw rod, first screw rod and second screw rod setting are in the barrel both sides and all slope setting, and double helix structure is asymmetric arrangement, and stirring scope is big, because the rotation of double helix, the material is along the circular motion of cone wall, utilizes helical blade's rotation effect, makes the powder discharge to the cone center make radial motion, and the material mixes from the awl end to upflow and spiral outer circumference surface discharge, promptly the screw axis direction. Powder descending flow caused by spiral rotation, in short, convection, shearing and diffusion and infiltration compound movement are carried out among materials, so that the materials in the cylinder can be quickly and uniformly mixed;
the carrier plate and the central shaft are driven to synchronously rotate, a central wheel on the central shaft rotates and drives the planetary gears to rotate, the first screw rod and the second screw rod rotate around the central shaft while rotating, so that double-screw rotation is realized, materials do circular motion along the cone wall, powder is discharged to the center of the cone to do radial motion by utilizing the autorotation effect of the helical blades, and the materials are discharged from the cone bottom to the upflow and the outer circumferential surface of the spiral, namely, the materials are mixed in the direction of the screw shaft;
the driving shaft is driven to rotate through the servo motor, the driving shaft drives the linkage shaft to rotate through the belt mechanism, the driving wheel on the linkage shaft rotates and drives the driven gear ring to rotate, so that the movable seat is driven to rotate, the cylinder body on the movable seat rotates and is evenly cleaned to be injected into different positions in the cylinder body, and the inside of the cylinder body is cleaned more evenly and fully.
Drawings
Fig. 1 is a schematic structural diagram of a mixing and grinding device for recycled concrete and a preparation method thereof according to the present invention.
Fig. 2 is a cross-sectional view of a mixing and grinding apparatus for recycled concrete and a method for manufacturing the same according to the present invention.
Fig. 3 is a front view of a mixing and grinding device for recycled concrete and a preparation method thereof according to the present invention.
Fig. 4 is an enlarged schematic view of the internal mechanism of the cylinder of the mixing and grinding device for the recycled concrete and the preparation method thereof.
Fig. 5 is an enlarged schematic view of a portion a of the mixing and grinding apparatus of fig. 4 according to the present invention.
Fig. 6 is an enlarged schematic view of a part of the structure of a mixing and grinding device for recycled concrete and a preparation method thereof according to the present invention.
Fig. 7 is an enlarged schematic diagram of a part of a mixing and grinding device for recycled concrete and a preparation method thereof according to the present invention.
Fig. 8 is an enlarged schematic view of a part of a mixing and grinding device for recycled concrete and a preparation method thereof according to the present invention.
In the figure: the device comprises a bracket 1, a cylinder 2, a first screw 3, a second screw 4, a discharging pipe 5, a valve 6, an annular support 7, a support 8, a connecting frame 9, a heating plate 10, a carrier plate 11, a central shaft 12, a central wheel 13, a movable frame 14, an outer gear ring 15, a fixed rod 16, a planetary shaft 17, a planetary gear 18, a first bevel gear 19, a rotating seat 20, a mounting frame 21, a first connecting shaft 22, a second bevel gear 23, a transmission shaft 24, a third bevel gear 25, a fourth bevel gear 26, a second connecting shaft 27, a fifth bevel gear 28, a driven gear ring 29, a movable seat 30, a cylinder 31, a liquid discharging pipe 32, a linkage shaft 33, a driving wheel 34, a motor frame 35, a servo motor 36, a driving shaft 37 and a belt mechanism 38.
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 8, a method for preparing recycled concrete includes the steps of:
s1: firstly, putting the recycled coarse aggregate into a mixing grinding device for grinding and mixing, wherein the treatment time is 10-15min, and the temperature is 80-90 ℃;
s2: after the recycled coarse aggregate is ground into powder, sequentially placing cement, coarse yellow sand, fine yellow sand, fly ash and mineral powder into a mixing grinding device, wherein the stirring time is 20-25min, and the temperature is 85-90 ℃;
s3: adding natural stone into the mixing and grinding device for mixing and stirring for 15-20min at 60-70deg.C;
s4: after the step S3 is completed, sequentially adding water and an additive to carry out final stirring, wherein the stirring time is 50-60min, the stirring temperature is 60-70 ℃, stopping the machine, and discharging the mixed recycled concrete from the mixing and grinding device for use;
the recycled concrete is prepared from the following raw materials in parts by weight: 11-13 parts of recycled concrete aggregate, 5-9 parts of cement, 3-4 parts of coarse yellow sand, 2-3 parts of fine yellow sand, 0.8-1.2 parts of fly ash, 0.3-0.5 part of mineral powder and 6-8 parts of natural stone.
The mixing grinding device in S1 includes support 1, support 1 top fixed mounting has barrel 2, barrel 2 sets up to the round platform shape of inversion, the inside cavity setting of barrel 2, barrel 2 is made by heat conduction material, be provided with heating mechanism in the barrel 2, heating mechanism is located the inside hollow position of barrel 2, barrel 2 upper end opening sets up, barrel 2 upper end inboard fixed mounting has annular support 7, the upper end is provided with support 8 in the barrel 2, be provided with annular gap between support 8 and the annular support 7, support 8 outside fixed mounting has a plurality of link 9 that are circumference array distribution, link 9 tip links firmly in annular support 7 inboard. Through injecting the material into barrel 2 in, heat the material of barrel 2 through heating mechanism, be provided with annular gap between through support 8 and the annular support 7, add cooling water and washing water in the annular gap after mixing, and then cool off and wash the device.
Still include first screw rod 3, second screw rod 4, actuating mechanism, discharging pipe 5 and valve 6, first screw rod 3 and second screw rod 4 all set up in barrel 2, actuating mechanism installs on barrel 2 and support 8, first screw rod 3 and second screw rod 4 all link to each other with actuating mechanism, discharging pipe 5 fixed mounting is in barrel 2 bottom and with barrel 2 intercommunication, valve 6 installs on discharging pipe 5, first screw rod 3 and second screw rod 4 set up in barrel 2 both sides and all slope setting, first screw rod 3 and second screw rod 4 slope opposite orientation. Through setting up first screw rod 3 and second screw rod 4, first screw rod 3 and second screw rod 4 set up in barrel 2 both sides and all slope setting, and double helix structure is asymmetric arrangement, and the stirring scope is big, because the rotation of double helix, the circular motion is made along the cone wall to the material, utilizes helical blade's rotation effect, makes the powder discharge to the cone center make radial motion, and the material is mixed from the awl end to upward flow and spiral outer circumference surface discharge, promptly the screw axis direction. The powder is flowed down by spiral rotation, in short, convection, shearing and diffusion are carried out among materials, and infiltration is carried out, so that the materials in the cylinder 2 can be mixed uniformly.
Working principle: through injecting the material into barrel 2 in, heat the material of barrel 2 through heating mechanism, be provided with annular gap between through support 8 and the annular support 7, add cooling water and washing water in the annular gap after mixing, and then cool off and wash the device. Through setting up first screw rod 3 and second screw rod 4, first screw rod 3 and second screw rod 4 set up in barrel 2 both sides and all slope setting, and double helix structure is asymmetric arrangement, and the stirring scope is big, because the rotation of double helix, the circular motion is made along the cone wall to the material, utilizes helical blade's rotation effect, makes the powder discharge to the cone center make radial motion, and the material is mixed from the awl end to upward flow and spiral outer circumference surface discharge, promptly the screw axis direction. The powder is flowed down by spiral rotation, in short, convection, shearing and diffusion are carried out among materials, and infiltration is carried out, so that the materials in the cylinder 2 can be mixed uniformly.
Example 2:
referring to fig. 1 to 8, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the heating mechanism comprises a heating plate 10, the heating plate 10 is disposed at a hollow position inside the cylinder 2, the heating plate 10 is adhered to and fixedly connected with the cylinder 2, and a wire inlet hole for the heating plate 10 is formed in the cylinder 2. The inner wall of the cylinder 2 is heated by the heating plate 10, and the inner wall of the cylinder 2 is heated and conducts the materials into the materials.
The driving mechanism comprises a carrier plate 11, the carrier plate 11 is fixedly connected to a support 8, a central shaft 12 is rotatably arranged at the bottom of the carrier plate 11, a central wheel 13 is fixedly arranged at the lower end of the central shaft 12, a movable frame 14 is arranged at the lower end of the carrier plate 11, the lower end of the central shaft 12 penetrates through the movable frame 14 and is rotatably arranged on the movable frame 14, an outer gear ring 15 is sleeved outside the central wheel 13, the outer gear ring 15, the movable frame 14 and the central wheel 13 are all arranged in the cylinder 2, a plurality of fixing rods 16 distributed in a circumferential array are fixedly arranged on the outer gear ring 15, the upper ends of the fixing rods 16 are fixedly connected to the bottom of the carrier plate 11, planetary shafts 17 are rotatably arranged at two ends of the bottom of the movable frame 14, planetary gears 18 are fixedly arranged at the lower ends of the planetary shafts 17 at two sides of the planetary shafts, the planetary gears 18 are positioned at two sides of the central wheel 13 and are positioned at the inner sides of the outer gear ring 15, the planetary gears 18 are meshed with the outer gear ring 15 and the central wheel 13 adjacent to the outer gear ring 15, and a first bevel gear 19 is fixedly arranged at the bottom of the planetary shafts 17.
The bottom of the carrier plate 11 is rotatably provided with a rotating seat 20, two symmetrically-distributed mounting frames 21 are fixedly arranged on the rotating seat 20, the upper end of a first screw rod 3 is fixedly provided with a first connecting shaft 22, the first connecting shaft 22 is rotatably arranged on the mounting frames 21 on the same side, a second bevel gear 23 is fixedly arranged on the first connecting shaft 22, the mounting frames 21 on two sides are rotatably provided with transmission shafts 24, the opposite ends of the two transmission shafts 24 are fixedly provided with third bevel gears 25, the third bevel gears 25 on the same side are meshed with the first bevel gears 19, the other ends of the transmission shafts 24 are fixedly provided with fourth bevel gears 26, the fourth bevel gears 26 on one side are meshed with the second bevel gears 23, the upper end of the second screw rod 4 is fixedly provided with a second connecting shaft 27, the upper end of the second connecting shaft 27 is rotatably arranged on the mounting frames 21 on the same side, the second connecting shaft 27 is fixedly provided with fifth bevel gears 28, and the fifth bevel gears 28 are meshed with the fourth bevel gears 26 on the same side.
By driving the carrier plate 11 and the central shaft 12 to synchronously rotate, the central wheel 13 on the central shaft 12 rotates and drives the planet wheel 18 to rotate, the outer gear ring 15 keeps fixed, meanwhile, the planet wheel 18, the planet shaft 17 and the first bevel gear 19 synchronously rotate, the planet wheel 18 rotates around the central wheel 13 at the same time, the first bevel gear 19 drives the third bevel gear 25 to rotate, the transmission shaft 24 synchronously rotates with the fourth bevel gear 26, the fourth bevel gear 26 drives the second bevel gear 23 to rotate, the second bevel gear 23, the first connecting shaft 22 and the first screw rod 3 synchronously rotate, and the fourth bevel gear 26 drives the fifth bevel gear 28 to rotate, the fifth bevel gear 28, the second connecting shaft 27 and the second screw rod 4 synchronously rotate, so that the first screw rod 3 and the second screw rod 4 rotate around the central shaft 12 to realize double-screw rotation, materials do circular motion along the cone wall, powder is discharged to the center of the cone to do radial motion by utilizing the autorotation effect of the helical blades, and the materials are discharged from the cone bottom to the upward flow and the outer circumferential surface of the spiral, namely, the direction of the spiral shaft is mixed.
After mixing, cooling the cylinder 2 by injecting a cooling medium into the cylinder 2, immediately flushing the parts such as a feed inlet, a discharge hopper, a discharge chute and the like by using a vehicle-mounted hose after discharging in the prior art, discharging dirt and residual concrete adhered to the parts of the vehicle body, injecting 150-200L of clear water into the stirring cylinder, slowly rotating the stirring cylinder during returning to clean the inner wall, avoiding the residual slag from being attached to the cylinder wall and the stirring blade, and discharging the water before charging again. After the work is finished, the inside of the stirring cylinder and the vehicle body are cleaned, the rest concrete cannot be left in the cylinder, so that clean water is required to be injected into the cylinder 2 for cleaning, but the cleaning is uneven and the effect is poor due to the fact that the clean water is injected into the fixed position in the cylinder 2, and the stirring cylinder further comprises a liquid injection mechanism which is arranged in the annular support 7 and is located at the upper end of the support 8. The liquid injection mechanism comprises a movable seat 30, the movable seat 30 is arranged in an annular support seat 7, the annular support seat 7 is rotatably arranged in the movable seat 30, a driven gear ring 29 is sleeved outside the annular support seat 7 and fixedly arranged on the driven gear ring, a plurality of cylinders 31 distributed in a circumferential array are fixedly arranged at the top of the movable seat 30, the bottoms of the cylinders 31 are communicated and fixedly provided with liquid discharge pipes 32, lower ports of the liquid discharge pipes 32 face to a gap between the annular support seat 7 and the support seat 8, and valves are arranged on the liquid discharge pipes 32. And the device also comprises a linkage mechanism which is arranged on the cylinder body 2 and is connected with the carrier plate 11. The linkage mechanism comprises a linkage shaft 33, the linkage shaft 33 is rotatably arranged on the cylinder body 2, a driving wheel 34 is fixedly arranged on the linkage shaft 33, the driving wheel 34 is meshed with the driven gear ring 29, a motor frame 35 is fixedly arranged on the support 8, a servo motor 36 is fixedly arranged on the motor frame 35, a driving shaft 37 is fixedly arranged at the output shaft end of the servo motor 36, the lower end of the driving shaft 37 is rotatably arranged on the carrier plate 11 and fixedly connected with the central shaft 12, and a belt mechanism 38 is arranged between the driving shaft 37 and the linkage shaft 33. The driving shaft 37 is driven to rotate by the servo motor 36, the driving shaft 37 drives the linkage shaft 33 to rotate by the belt mechanism 38, the driving wheel 34 on the linkage shaft 33 rotates and drives the driven gear ring 29 to rotate, so that the movable seat 30 is driven to rotate, the cylinder 31 on the movable seat 30 rotates and is evenly cleaned and injected into different positions in the cylinder 2, and the inside of the cylinder 2 is evenly and fully cleaned.
Working principle: by driving the carrier plate 11 and the central shaft 12 to synchronously rotate, the central wheel 13 on the central shaft 12 rotates and drives the planet wheel 18 to rotate, the outer gear ring 15 keeps fixed, meanwhile, the planet wheel 18, the planet shaft 17 and the first bevel gear 19 synchronously rotate, the planet wheel 18 rotates around the central wheel 13 at the same time, the first bevel gear 19 drives the third bevel gear 25 to rotate, the transmission shaft 24 synchronously rotates with the fourth bevel gear 26, the fourth bevel gear 26 drives the second bevel gear 23 to rotate, the second bevel gear 23, the first connecting shaft 22 and the first screw rod 3 synchronously rotate, and the fourth bevel gear 26 drives the fifth bevel gear 28 to rotate, the fifth bevel gear 28, the second connecting shaft 27 and the second screw rod 4 synchronously rotate, so that the first screw rod 3 and the second screw rod 4 rotate around the central shaft 12 to realize double-screw rotation, materials do circular motion along the cone wall, powder is discharged to the center of the cone to do radial motion by utilizing the autorotation effect of the helical blades, and the materials are discharged from the cone bottom to the upward flow and the outer circumferential surface of the spiral, namely, the direction of the spiral shaft is mixed. The driving shaft 37 is driven to rotate by the servo motor 36, the driving shaft 37 drives the linkage shaft 33 to rotate by the belt mechanism 38, the driving wheel 34 on the linkage shaft 33 rotates and drives the driven gear ring 29 to rotate, so that the movable seat 30 is driven to rotate, the cylinder 31 on the movable seat 30 rotates and is evenly cleaned and injected into different positions in the cylinder 2, and the inside of the cylinder 2 is evenly and fully cleaned.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The preparation method of the recycled concrete is characterized by comprising the following steps of:
s1: firstly, putting the recycled coarse aggregate into a mixing grinding device for grinding and mixing, wherein the treatment time is 10-15min, and the temperature is 80-90 ℃;
s2: after the recycled coarse aggregate is ground into powder, sequentially placing cement, coarse yellow sand, fine yellow sand, fly ash and mineral powder into a mixing grinding device, wherein the stirring time is 20-25min, and the temperature is 85-90 ℃;
s3: adding natural stone into the mixing and grinding device for mixing and stirring for 15-20min at 60-70deg.C;
s4: after the step S3 is completed, sequentially adding water and an additive to carry out final stirring, wherein the stirring time is 50-60min, the stirring temperature is 60-70 ℃, stopping the machine, and discharging the mixed recycled concrete from the mixing and grinding device for use;
the mixing grinding device in S1 includes support (1), link gear and notes liquid mechanism, support (1) top fixed mounting has barrel (2), barrel (2) set up to the round platform shape of inversion, the inside cavity of barrel (2) sets up, barrel (2) are made by the heat conduction material, be provided with heating mechanism in barrel (2), heating mechanism is located the inside hollow position of barrel (2), barrel (2) upper end opening sets up.
2. The preparation method of the recycled concrete according to claim 1, wherein an annular support (7) is fixedly arranged on the inner side of the upper end of the cylinder (2), a support (8) is arranged on the inner upper end of the cylinder (2), an annular gap is arranged between the support (8) and the annular support (7), a plurality of connecting frames (9) distributed in a circumferential array are fixedly arranged on the outer side of the support (8), and the end parts of the connecting frames (9) are fixedly connected on the inner side of the annular support (7);
still include first screw rod (3), second screw rod (4), actuating mechanism, discharging pipe (5) and valve (6), first screw rod (3) and second screw rod (4) all set up in barrel (2), actuating mechanism installs on barrel (2) and support (8), first screw rod (3) and second screw rod (4) all link to each other with actuating mechanism, discharging pipe (5) fixed mounting is in barrel (2) bottom and with barrel (2) intercommunication, valve (6) are installed on discharging pipe (5), first screw rod (3) and second screw rod (4) set up in barrel (2) both sides and all slope setting, first screw rod (3) and second screw rod (4) slope opposite orientation.
3. The method for preparing recycled concrete according to claim 1, wherein the heating mechanism comprises a heating plate (10), the heating plate (10) is arranged at a hollow position inside the cylinder body (2), the heating plate (10) is attached to and fixedly connected with the cylinder body (2), and a wire inlet hole for the heating plate (10) is formed in the cylinder body (2).
4. The preparation method of recycled concrete according to claim 1, wherein the driving mechanism comprises a carrier plate (11), the carrier plate (11) is fixedly connected to the support (8), a central shaft (12) is rotatably mounted at the bottom of the carrier plate (11), a central wheel (13) is fixedly mounted at the lower end of the central shaft (12), a movable carrier (14) is arranged at the lower end of the carrier plate (11), the lower end of the central shaft (12) penetrates through the movable carrier (14) and is rotatably mounted on the movable carrier (14), an outer gear ring (15) is sleeved outside the central wheel (13), the outer gear ring (15), the movable carrier (14) and the central wheel (13) are all arranged in the cylinder (2), a plurality of fixed rods (16) distributed in a circumferential array are fixedly mounted on the outer gear ring (15), the upper ends of the fixed rods (16) are fixedly connected to the bottom of the carrier plate (11), planetary shafts (17) are rotatably mounted at two ends of the bottom of the movable carrier (14), the lower ends of the planetary shafts (17) at two sides are rotatably mounted on the movable carrier (14), planetary gears (17) are fixedly mounted on the outer gear ring (17) at the inner sides of the planetary shafts (17), planetary gears (18) are fixedly mounted on the planetary gears (18) at the two sides of the planetary gears (18), the planetary gears (18) are meshed with the adjacent outer gear rings (15) and the central gear (13), and first bevel gears (19) are fixedly arranged at the bottoms of the planetary shafts (17).
5. The preparation method of recycled concrete according to claim 4, wherein a rotating seat (20) is rotatably installed at the bottom of the carrier plate (11), two symmetrically-distributed installation frames (21) are fixedly installed on the rotating seat (20), a first connecting shaft (22) is fixedly installed at the upper end of the first screw rod (3), the first connecting shaft (22) is rotatably installed on the installation frame (21) on the same side, a second bevel gear (23) is fixedly installed on the first connecting shaft (22), transmission shafts (24) are rotatably installed on the installation frames (21) on two sides, a third bevel gear (25) is fixedly installed at opposite ends of the two transmission shafts (24), the third bevel gear (25) on the same side is meshed with the first bevel gear (19), a fourth bevel gear (26) is fixedly installed at the other end of the transmission shaft (24), the fourth bevel gear (26) on one side is meshed with the second bevel gear (23), a transmission shaft (27) is fixedly installed at the upper end of the second screw rod (4), and the second bevel gear (27) is fixedly installed on the second side, and the second bevel gear (27) is fixedly connected with the second bevel gear (27) on the same side.
6. A method of preparing recycled concrete according to claim 1, further comprising a liquid injection mechanism disposed within the annular support (7) and located at the upper end of the support (8).
7. The preparation method of recycled concrete according to claim 6, wherein the liquid injection mechanism comprises a movable seat (30), the movable seat (30) is arranged in an annular support (7), the annular support (7) is rotatably arranged in the movable seat (30), a driven gear ring (29) is sleeved and fixedly arranged on the outer side of the annular support (7), a plurality of cylinders (31) distributed in a circumferential array are fixedly arranged on the top of the movable seat (30), liquid discharge pipes (32) are communicated and fixedly arranged at the bottoms of the cylinders (31), and lower ports of the liquid discharge pipes (32) face to gaps between the annular support (7) and the supports (8).
8. A method of preparing recycled concrete according to claim 1, further comprising a linkage mechanism mounted on the cylinder (2) and connected to the carrier plate (11).
9. The method for preparing recycled concrete according to claim 8, wherein the linkage mechanism comprises a linkage shaft (33), the linkage shaft (33) is rotatably mounted on the cylinder body (2), a driving wheel (34) is fixedly mounted on the linkage shaft (33), the driving wheel (34) is meshed with the driven gear ring (29), a motor frame (35) is fixedly mounted on the support (8), a servo motor (36) is fixedly mounted on the motor frame (35), a driving shaft (37) is fixedly mounted at the output shaft end of the servo motor (36), the lower end of the driving shaft (37) is rotatably mounted on the carrier plate (11) and fixedly connected with the central shaft (12), and a belt mechanism (38) is mounted between the driving shaft (37) and the linkage shaft (33).
10. The recycled concrete produced by the method for producing recycled concrete according to claims 1 to 9, wherein the recycled concrete is produced from the following raw materials in parts by weight: 11-13 parts of recycled concrete aggregate, 5-9 parts of cement, 3-4 parts of coarse yellow sand, 2-3 parts of fine yellow sand, 0.8-1.2 parts of fly ash, 0.3-0.5 part of mineral powder and 6-8 parts of natural stone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310277141.7A CN116373115A (en) | 2023-03-21 | 2023-03-21 | Recycled concrete and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310277141.7A CN116373115A (en) | 2023-03-21 | 2023-03-21 | Recycled concrete and preparation method thereof |
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| CN116373115A true CN116373115A (en) | 2023-07-04 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090285050A1 (en) * | 2008-05-16 | 2009-11-19 | Cheng-Chung Wang | Mixing machine for agitating and mingling materials |
| CN106732128A (en) * | 2016-12-09 | 2017-05-31 | 卿琦 | A kind of granule materials with pre-mixing apparatus mix equipment |
| CN107244841A (en) * | 2017-06-10 | 2017-10-13 | 江苏顺丰建设有限公司 | A kind of regeneration concrete and preparation method thereof |
| CN206746351U (en) * | 2017-05-23 | 2017-12-15 | 胡理寿 | A kind of double-spiral conical mixer |
| CN110559905A (en) * | 2019-09-18 | 2019-12-13 | 张齐 | Conical double-screw mixer |
| CN210674874U (en) * | 2019-09-26 | 2020-06-05 | 株洲托普硬质合金材料有限公司 | Double helix conical mixer |
| CN218365579U (en) * | 2022-02-22 | 2023-01-24 | 仙居县海星新型建材有限公司 | Even device is used in high-efficient processing of concrete |
-
2023
- 2023-03-21 CN CN202310277141.7A patent/CN116373115A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090285050A1 (en) * | 2008-05-16 | 2009-11-19 | Cheng-Chung Wang | Mixing machine for agitating and mingling materials |
| CN106732128A (en) * | 2016-12-09 | 2017-05-31 | 卿琦 | A kind of granule materials with pre-mixing apparatus mix equipment |
| CN206746351U (en) * | 2017-05-23 | 2017-12-15 | 胡理寿 | A kind of double-spiral conical mixer |
| CN107244841A (en) * | 2017-06-10 | 2017-10-13 | 江苏顺丰建设有限公司 | A kind of regeneration concrete and preparation method thereof |
| CN110559905A (en) * | 2019-09-18 | 2019-12-13 | 张齐 | Conical double-screw mixer |
| CN210674874U (en) * | 2019-09-26 | 2020-06-05 | 株洲托普硬质合金材料有限公司 | Double helix conical mixer |
| CN218365579U (en) * | 2022-02-22 | 2023-01-24 | 仙居县海星新型建材有限公司 | Even device is used in high-efficient processing of concrete |
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