CN116901254A - Low-shrinkage commercial concrete and preparation method and equipment thereof - Google Patents
Low-shrinkage commercial concrete and preparation method and equipment thereof Download PDFInfo
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- CN116901254A CN116901254A CN202310540834.0A CN202310540834A CN116901254A CN 116901254 A CN116901254 A CN 116901254A CN 202310540834 A CN202310540834 A CN 202310540834A CN 116901254 A CN116901254 A CN 116901254A
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- 239000004567 concrete Substances 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 238000003756 stirring Methods 0.000 claims abstract description 182
- 239000000203 mixture Substances 0.000 claims abstract description 50
- 239000002994 raw material Substances 0.000 claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000004575 stone Substances 0.000 claims description 26
- 238000003825 pressing Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 14
- 239000004576 sand Substances 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 12
- 230000000996 additive effect Effects 0.000 claims description 12
- 239000004568 cement Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 230000009467 reduction Effects 0.000 claims description 10
- 239000010881 fly ash Substances 0.000 claims description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 9
- 239000011707 mineral Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 235000011194 food seasoning agent Nutrition 0.000 claims description 8
- 239000004278 EU approved seasoning Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 239000003469 silicate cement Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000002956 ash Substances 0.000 claims description 5
- 230000009347 mechanical transmission Effects 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 description 5
- 239000011398 Portland cement Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
Classifications
-
- 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
- B28C5/40—Mixing specially adapted for preparing mixtures containing fibres
-
- 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
- B28C5/18—Mixing in containers to which motion is imparted to effect the mixing
- B28C5/26—Mixing in containers to which motion is imparted to effect the mixing rotating about a vertical or steeply inclined axis during the mixing, e.g. comprising a flat bottomplate rotating about a vertical axis, co-operating with blades or stirrers
- B28C5/32—Mixing in containers to which motion is imparted to effect the mixing rotating about a vertical or steeply inclined axis during the mixing, e.g. comprising a flat bottomplate rotating about a vertical axis, co-operating with blades or stirrers with driven stirrers
-
- 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
- B28C5/40—Mixing specially adapted for preparing mixtures containing fibres
- B28C5/402—Methods
-
- 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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention relates to the technical field of concrete preparation, in particular to low-shrinkage commercial concrete and a preparation method and equipment thereof; including support frame, the collar, the agitator tank, actuating assembly, annular roof, throw the hopper, push down mechanism and stirring subassembly, batch to the inside of agitator tank through throwing the hopper add the filling material, every time when adding the mixture of filling material to the inside of agitator tank, the mixture floats the surface of the raw materials in the agitator tank, when the mixture rotates to pushing down mechanism department, start rotating assembly, through the cooperation of swivel ring, threaded rod and gag lever post, drive push down the frame to the inner bottom of agitator tank pushes down, thereby will float the mixture of surface and push down to the different degree of depth departments of agitator tank, after the inside of agitator tank all has added the mixture, drive agitator tank rotation through actuating assembly, and the raw materials of cooperation stirring subassembly in to the agitator tank stirs, make the raw materials intensive mixing in the agitator tank.
Description
Technical Field
The invention relates to the technical field of concrete preparation, in particular to low-shrinkage commercial concrete and a preparation method and equipment thereof.
Background
Commercial concrete is an engineering composite material formed by cementing aggregate into a whole by using a cementing material, and the phenomenon of volume shrinkage of the commercial concrete occurs in the initial stage of coagulation and the hardening process, particularly when the external environment temperature is higher, the moisture on the surface of the concrete is easily evaporated, and the shrinkage problem is serious, so that the concrete is easy to crack, and the mechanical strength of the concrete is influenced.
To solve the above problems, the prior published patent (CN 114933452B) discloses a low shrinkage commercial concrete and a preparation method thereof; the low-shrinkage commercial concrete is prepared from the following raw materials in parts by weight: 60-85 parts of volcanic ash cement, 125-145 parts of Portland cement, 75-90 parts of mineral powder, 75-82 parts of fly ash, 450-520 parts of sand, 300-400 parts of basalt stone, 700-850 parts of crushed stone, 152-170 parts of water, 7.2-8.6 parts of additive, 15-35 parts of filling fiber and 10-25 parts of filler; the preparation method comprises the following steps: mixing pozzolanic cement, silicate cement, mineral powder and fly ash uniformly, adding sand, basalt stone and broken stone, mixing uniformly, adding filling fiber and filler, and mixing uniformly; finally adding water and an additive, and uniformly mixing to obtain a finished product; the prepared low-shrinkage concrete can prevent the concrete from cracking and ensure the mechanical strength of the concrete.
In the preparation process of the low-shrinkage commercial concrete, various raw materials are required to be fully and uniformly mixed, so that the structural strength of the prepared concrete can be optimal, but the conventional mixing equipment cannot fully and uniformly mix the various raw materials of the low-shrinkage commercial concrete.
Disclosure of Invention
The invention aims to provide low-shrinkage commercial concrete and a preparation method and equipment thereof, and solves the problems that various raw materials are required to be fully and uniformly mixed in the preparation process of the low-shrinkage commercial concrete in the prior art, so that the structural strength of the prepared concrete can be optimal, but various raw materials of the low-shrinkage commercial concrete cannot be fully and uniformly mixed by the conventional mixing equipment.
In order to achieve the above purpose, the invention provides low shrinkage commodity concrete preparation equipment, which comprises a supporting frame, a mounting ring, a stirring tank, a driving assembly, an annular top plate, a feeding hopper, a pressing mechanism and a stirring assembly, wherein the mounting ring is arranged on the supporting frame, the stirring tank is rotatably connected to the mounting ring, the annular top plate is arranged on the top of the supporting frame, the feeding hopper and the stirring assembly are respectively arranged on two sides of the annular top plate, the feeding hopper is used for feeding raw materials into the stirring tank, the stirring assembly is used for stirring the raw materials in the stirring tank, the pressing mechanism is further arranged on the annular top plate, and the pressing mechanism is positioned between the feeding hopper and the stirring assembly;
the bottom of support frame is provided with the mounting panel, be provided with on the mounting panel drive assembly, be provided with drive gear on the lateral wall of agitator tank, drive assembly's output with drive gear mechanical transmission, the mechanism of pushing down includes swivel becket, threaded rod, rotating assembly, pushes down frame and gag lever post, it is connected with to rotate on the annular roof the swivel becket, the inside threaded connection of swivel becket has the threaded rod, it is located to push down the frame the inside of agitator tank, it is close to push down the frame the one end of swivel becket be provided with the bearing frame with the gag lever post, the threaded rod is close to the one end embedding of agitator tank reaches the inside of bearing frame, the gag lever post is kept away from push down the one end of frame runs through the annular roof, the rotating assembly installs the upper surface of annular roof, the outside of swivel becket is provided with driven gear, the output of rotating assembly with driven gear mechanical transmission.
The driving assembly comprises a motor, a gearbox and an output gear, the motor is mounted on the mounting plate, the gearbox is arranged at the output end of the motor, the output gear is arranged at the output end of the gearbox, and the output gear is meshed with the transmission gear.
The transmission gear comprises a gear body and two mounting wing rings, the gear body is sleeved outside the stirring tank, the mounting wing rings are arranged on two sides of the gear body, and the mounting wing rings are detachably connected with the outer side wall of the stirring tank.
The rotary assembly comprises a driving motor, a reduction gearbox and a driving gear, wherein the driving motor is mounted on the upper surface of the annular top plate, the reduction gearbox is arranged at the output end of the driving motor, the driving gear is arranged at the output end of the reduction gearbox, and the driving gear is meshed with the driven gear.
The annular top plate is provided with a rotating hole, a rotating bearing is arranged in the rotating hole, and the rotating ring is embedded in the rotating bearing.
The stirring assembly comprises a rotating motor, a stirring shaft and a plurality of stirring blades, wherein the rotating motor is arranged at the bottom of the annular top plate, the output end of the rotating motor is provided with the stirring shaft, the output end of the stirring shaft is uniformly provided with a plurality of stirring blades at intervals, and the stirring blades are all positioned in the stirring tank.
The invention also provides low-shrinkage commercial concrete which is prepared by the preparation equipment of the low-shrinkage commercial concrete and comprises pozzolanic cement, portland cement, mineral powder, fly ash, sand, basalt stone, crushed stone, water, an additive, filling fibers and a filler.
The invention also provides a preparation method of the low-shrinkage commercial concrete, which is used for preparing the low-shrinkage commercial concrete and comprises the following steps of:
weighing volcanic ash cement, silicate cement, mineral powder and fly ash, and uniformly mixing and stirring to obtain a primary mixed material;
weighing sand, basalt stone and broken stone, adding the sand, the basalt stone and the broken stone into the primary mixed material, and uniformly mixing and stirring the materials to prepare a mixed material;
adding a certain mass part of water, an additive and a mixture into the stirring tank, starting the driving assembly, driving the stirring tank to rotate in the mounting ring through the transmission gear, starting the stirring assembly in the rotation process of the stirring tank, and mixing the water, the additive and the mixture in the stirring tank, wherein the output direction of the stirring assembly is opposite to the output direction of the driving assembly;
in the process of uniformly mixing part of raw materials in the stirring tank by utilizing the stirring assembly, adding a mixture of filling fibers and seasonings into the stirring tank in batches through the feeding hopper;
each time adding a mixture of filling fibers and seasonings into the stirring tank, wherein the mixture floats on the surface of raw materials in the stirring tank, when the mixture rotates to the position of the pressing mechanism, starting the rotating assembly, and driving the pressing frame to press downwards towards the inner bottom of the stirring tank through the cooperation of the rotating ring, the threaded rod and the limiting rod, so that the mixture floating on the surface is pressed downwards to different depths of the stirring tank;
after the mixture is added at different depth positions in the stirring tank, the stirring tank is driven to rotate by the driving assembly, and the stirring assembly is matched to stir the raw materials in the stirring tank, so that the raw materials in the stirring tank are fully mixed.
The invention relates to low shrinkage commodity concrete and a preparation method and equipment thereof, the low shrinkage commodity concrete comprises a supporting frame, a mounting ring, a stirring tank, a driving assembly, an annular top plate, a feeding hopper, a pressing mechanism and a stirring assembly, wherein the pressing mechanism comprises a rotating ring, a threaded rod, a rotating assembly, a pressing frame and a limiting rod, filling raw materials are added into the stirring tank in batches through the feeding hopper, each time when a mixture of the filling raw materials is added into the stirring tank, the mixture floats on the surface of the raw materials in the stirring tank, when the mixture rotates to the pressing mechanism, the rotating assembly is started, the pressing frame is driven to press downwards towards the inner bottom of the stirring tank through the cooperation of the rotating ring, the threaded rod and the limiting rod, so that the mixture floating on the surface is pressed downwards to different depth positions of the stirring tank, and after the mixture is added into the different depth positions of the stirring tank, the driving assembly drives the stirring tank to rotate, and the stirring tank is matched with the stirring assembly to stir the raw materials in the stirring tank, so that the raw materials in the stirring tank are fully mixed.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a low shrinkage commercial concrete preparation apparatus provided by the present invention.
Fig. 2 is an enlarged view of a partial structure at a of fig. 1 provided by the present invention.
Fig. 3 is an enlarged view of a partial structure at B of fig. 1 provided by the present invention.
Fig. 4 is a schematic structural view of the annular top plate provided by the invention.
Fig. 5 is an enlarged view of a part of the structure at C of fig. 4 provided by the present invention.
FIG. 6 is a flow chart of the steps of the method for preparing low shrinkage commercial concrete provided by the invention.
101-support frame, 102-mounting ring, 103-agitator tank, 104-drive assembly, 105-annular top plate, 106-hopper, 107-hold-down mechanism, 108-agitator assembly, 109-mounting plate, 110-drive gear, 111-rotating ring, 112-threaded rod, 113-rotating assembly, 114-hold-down frame, 115-stop lever, 116-bearing housing, 117-driven gear, 118-motor, 119-gearbox, 120-output gear, 121-gear body, 122-mounting wing ring, 123-drive motor, 124-reduction gearbox, 125-drive gear, 126-rotation hole, 127-rotation bearing, 128-rotation motor, 129-stirring shaft, 130-stirring blade, 131-protective housing, 132-housing, 133-mounting wing plate.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
Referring to fig. 1 to 5, the present invention provides a low shrinkage commercial concrete preparation apparatus, the low shrinkage commercial concrete preparation apparatus includes a support frame 101, a mounting ring 102, a stirring tank 103, a driving assembly 104, an annular top plate 105, a hopper 106, a pressing mechanism 107 and a stirring assembly 108, the support frame 101 is provided with the mounting ring 102, the mounting ring 102 is rotatably connected with the stirring tank 103, the top of the support frame 101 is provided with the annular top plate 105, the annular top plate 105 is provided with the hopper 106 and the stirring assembly 108, the hopper 106 and the stirring assembly 108 are respectively located at two sides of the annular top plate 105, the hopper 106 is used for feeding raw materials into the stirring tank 103, the stirring assembly 108 is used for stirring raw materials in the stirring tank 103, the annular top plate 105 is further provided with the pressing mechanism 107, and the pressing mechanism 107 is located between the hopper 106 and the stirring assembly 108;
the bottom of support frame 101 is provided with mounting panel 109, be provided with on the mounting panel 109 drive assembly 104, be provided with drive gear 110 on the lateral wall of agitator tank 103, drive assembly 104's output with drive gear 110 mechanical transmission, push down mechanism 107 includes swivel becket 111, threaded rod 112, rotation subassembly 113, pushes down frame 114 and gag lever post 115, rotate on the annular roof 105 and be connected with swivel becket 111, swivel becket 111's inside threaded connection has threaded rod 112, push down frame 114 is located the inside of agitator tank 103, push down frame 114 is close to swivel becket 111's one end is provided with bearing frame 116 and gag lever post 115, threaded rod 112 is close to agitator tank 103's one end is embedded into the inside of bearing frame 117, the gag lever post 115 is kept away from push down frame 114's one end runs through annular roof 105, swivel becket 113 installs the upper surface, swivel becket 111's outside is provided with driven gear 117, rotation subassembly's output with mechanical driven gear 117.
In this embodiment, a part of raw materials are added into the stirring tank 103, the driving assembly 104 is started, the stirring tank 103 is driven to rotate in the mounting ring 102 by the transmission gear 110, the stirring assembly 108 is started in the rotation process of the stirring tank 103, the part of raw materials in the stirring tank 103 are mixed, the output direction of the stirring assembly 108 is opposite to the output direction of the driving assembly 104, in the process of uniformly mixing the part of raw materials in the stirring tank 103 by the stirring assembly 108, the filling raw materials are added into the stirring tank 103 in batches by the feeding hopper 106, each time when a mixture of the filling raw materials is added into the stirring tank 103, the mixture floats on the surface of the raw materials in the stirring tank 103, when the mixture rotates to the position of the pressing mechanism 107, the rotation assembly 113 is started, the inner bottom of the stirring tank 103 is driven to press the inner bottom of the stirring tank 103 by the rotation ring 111, the threaded rod 112 and the limit rod 115, and the mixture is fully mixed by the stirring assembly 103 when the mixture is pressed to the inner bottom of the stirring tank 103, and the mixture is fully mixed by the stirring assembly 103, and the mixture is fully mixed when the mixture is not pressed to the inner side of the stirring tank 103, and the mixture is fully mixed by the stirring assembly 103.
Further, the driving assembly 104 includes a motor 118, a gearbox 119 and an output gear 120, the motor 118 is mounted on the mounting plate 109, the gearbox 119 is disposed at an output end of the motor 118, the output gear 120 is disposed at an output end of the gearbox 119, and the output gear 120 is meshed with the transmission gear 110.
In this embodiment, the motor 118 is started, and the output gear 120 is driven to rotate after the output rotation speed is changed by the gearbox 119, and the output gear 120 is meshed with the transmission gear 110, so that the stirring tank 103 is driven to rotate inside the mounting ring 102.
Further, the transmission gear 110 includes a gear body 121 and two installation wing rings 122, the gear body 121 is sleeved outside the stirring tank 103, the installation wing rings 122 are disposed on two sides of the gear body 121, and the installation wing rings 122 are detachably connected with the outer side wall of the stirring tank 103.
In the present embodiment, the gear body 121 is fitted around the outside of the stirring tank 103, and then the mounting wing ring 122 is fixed to the outer wall of the stirring tank 103 by screws, thereby completing the mounting of the transmission gear 110.
Further, the rotating assembly 113 includes a driving motor 123, a reduction gearbox 124 and a driving gear 125, the driving motor 123 is mounted on the upper surface of the annular top plate 105, the reduction gearbox 124 is disposed at an output end of the driving motor 123, the driving gear 125 is disposed at an output end of the reduction gearbox 124, and the driving gear 125 is meshed with the driven gear 117.
In this embodiment, the driving motor 123 is started, and the reduction gearbox 124 is used to reduce the output rotation speed, and then drive the driving gear 125 to rotate, so that the driving gear 125 is meshed with the driven gear 117, and the rotating ring 111 is driven to rotate on the annular top plate 105.
Further, a rotation hole 126 is formed in the annular top plate 105, a rotation bearing 127 is disposed in the rotation hole 126, and the rotation ring 111 is embedded in the rotation bearing 127.
In the present embodiment, the rotation bearing 127 is provided to make the rotation of the rotation ring 111 on the ring-shaped top plate 105 smoother.
Further, the stirring assembly 108 includes a rotating motor 128, a stirring shaft 129 and a plurality of stirring blades 130, the rotating motor 128 is installed at the bottom of the annular top plate 105, the output end of the rotating motor 128 is provided with the stirring shaft 129, the output end of the stirring shaft 129 is uniformly provided with a plurality of stirring blades 130 at intervals, and a plurality of stirring blades 130 are all located inside the stirring tank 103.
In the present embodiment, the rotation motor 128 is started to rotate the stirring shaft 129, so that the raw materials in the stirring tank 103 are mixed by the plurality of stirring blades 130.
Further, a protective housing 131 is further provided on the annular top plate 105, and the protective housing 131 is covered outside the driving gear 125 and the driven gear 117.
In the present embodiment, the driving gear 125 and the driven gear 117 are protected by the protective case 131, so that the engagement between the driving gear 125 and the driven gear 117 is not affected by the external environment.
Further, the protective case 131 includes a housing 132 and a mounting wing plate 133, the housing 132 is covered on the outside of the driving gear 125 and the driven gear 117, the housing 132 is provided with the mounting wing plate 133 near one end of the annular top plate 105, and the mounting wing plate 133 is detachably connected with the annular top plate 105.
In the present embodiment, the housing 132 is covered outside the driving gear 125 and the driven gear 117, and then the mounting flange 133 is fixed to the ring-shaped top plate 105 by screws, thereby completing the mounting of the protective case 131.
The invention also provides low-shrinkage commercial concrete which is prepared by the preparation equipment of the low-shrinkage commercial concrete and comprises pozzolanic cement, portland cement, mineral powder, fly ash, sand, basalt stone, crushed stone, water, an additive, filling fibers and a filler.
In the embodiment, the pozzolan cement and the silicate cement are matched, and the concrete has the advantage of low shrinkage by adjusting the activity of the compound cement; the proportion of sand, basalt stone and broken stone is used for controlling the sand rate and simultaneously ensuring the mechanical strength of the concrete, so that the concrete has the advantage of low shrinkage; meanwhile, the shrinkage of the concrete is further prevented by using good filling effects of filling fibers and fillers; thus, the low shrinkage concrete is prepared, and the mechanical strength of the concrete can be ensured while the crack of the concrete is prevented.
Referring to fig. 6, the present invention further provides a method for preparing low shrinkage commercial concrete, which is used for preparing the low shrinkage commercial concrete as described above, and comprises the following steps:
s1: weighing volcanic ash cement, silicate cement, mineral powder and fly ash, and uniformly mixing and stirring to obtain a primary mixed material;
s2: weighing sand, basalt stone and broken stone, adding the sand, the basalt stone and the broken stone into the primary mixed material, and uniformly mixing and stirring the materials to prepare a mixed material;
s3: adding a certain mass part of water, an additive and a mixture into the stirring tank 103, starting the driving assembly 104, driving the stirring tank 103 to rotate in the mounting ring 102 through the transmission gear 110, starting the stirring assembly 108 in the rotation process of the stirring tank 103, and mixing the water, the additive and the mixture in the stirring tank 103, wherein the output direction of the stirring assembly 108 is opposite to the output direction of the driving assembly 104;
s4: adding a mixture of filling fibers and seasonings into the stirring tank 103 in batches through the hopper 106 during the process of uniformly mixing part of the raw materials in the stirring tank 103 by using the stirring assembly 108;
s5: each time a mixture of filling fibers and seasonings is added into the stirring tank 103, the mixture floats on the surface of raw materials in the stirring tank 103, when the mixture rotates to the position of the pressing mechanism 107, the rotating assembly 113 is started, and the pressing frame 114 is driven to press downwards towards the inner bottom of the stirring tank 103 through the cooperation of the rotating ring 111, the threaded rod 112 and the limiting rod 115, so that the mixture floating on the surface is pressed downwards to different depths of the stirring tank 103;
s6: after the mixture is added at different depths inside the stirring tank 103, the stirring tank 103 is driven to rotate by the driving component 104, and the raw materials in the stirring tank 103 are stirred by matching with the stirring component 108, so that the raw materials in the stirring tank 103 are fully mixed.
In this embodiment, first, the pozzolan cement, the Portland cement, the mineral powder and the fly ash are weighed and mixed uniformly to obtain a primary mixed material, the sand, the basalt stone and the crushed stone are weighed and added into the primary mixed material to be mixed uniformly to obtain a mixed material, then a certain mass portion of water, an additive and the mixed material are added into the stirring tank 103, the driving component 104 is started, the stirring tank 103 is driven to rotate in the mounting ring 102 through the transmission gear 110, the stirring component 108 is started to mix the water, the additive and the mixed material in the stirring tank 103 in the rotation process, the output direction of the stirring component 108 is opposite to the output direction of the driving component 104, and in the process of uniformly mixing part of raw materials in the stirring tank 103 by using the stirring component 108, the mixture of filling fiber and seasoning is added into the stirring tank 103 in batches through the hopper 106, the mixture floats on the surface of the raw materials in the stirring tank 103 because the mixture of filling fiber and seasoning is added into the stirring tank 103 every time, when the mixture rotates to the position of the pushing mechanism 107, the rotating assembly 113 is started, the pushing frame 114 is driven to push down towards the inner bottom of the stirring tank 103 through the cooperation of the rotating ring 111, the threaded rod 112 and the limiting rod 115, the mixture floating on the surface is pushed down to different depths of the stirring tank 103, finally, after the mixture is added into the stirring tank 103 at different depths, the stirring tank 103 is driven to rotate through the driving assembly 104, and the raw materials in the stirring tank 103 are stirred through the cooperation of the stirring assembly 108, so that the raw materials in the stirring tank 103 are thoroughly mixed.
The above disclosure is only a preferred embodiment of the present invention, and it should be understood that the scope of the invention is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present invention.
Claims (8)
1. A low shrinkage commercial concrete preparation device is characterized in that,
the stirring device comprises a supporting frame, a mounting ring, a stirring tank, a driving assembly, an annular top plate, a feeding hopper, a pressing mechanism and a stirring assembly, wherein the mounting ring is arranged on the supporting frame, the stirring tank is rotationally connected on the mounting ring, the annular top plate is arranged at the top of the supporting frame, the feeding hopper and the stirring assembly are respectively arranged on the annular top plate, the feeding hopper and the stirring assembly are respectively positioned on two sides of the annular top plate, the feeding hopper is used for feeding raw materials into the stirring tank, the stirring assembly is used for stirring the raw materials in the stirring tank, the pressing mechanism is further arranged on the annular top plate, and the pressing mechanism is positioned between the feeding hopper and the stirring assembly;
the bottom of support frame is provided with the mounting panel, be provided with on the mounting panel drive assembly, be provided with drive gear on the lateral wall of agitator tank, drive assembly's output with drive gear mechanical transmission, the mechanism of pushing down includes swivel becket, threaded rod, rotating assembly, pushes down frame and gag lever post, it is connected with to rotate on the annular roof the swivel becket, the inside threaded connection of swivel becket has the threaded rod, it is located to push down the frame the inside of agitator tank, it is close to push down the frame the one end of swivel becket be provided with the bearing frame with the gag lever post, the threaded rod is close to the one end embedding of agitator tank reaches the inside of bearing frame, the gag lever post is kept away from push down the one end of frame runs through the annular roof, the rotating assembly installs the upper surface of annular roof, the outside of swivel becket is provided with driven gear, the output of rotating assembly with driven gear mechanical transmission.
2. The low shrinkage commercial concrete preparation apparatus as defined in claim 1,
the driving assembly comprises a motor, a gearbox and an output gear, the motor is mounted on the mounting plate, the gearbox is arranged at the output end of the motor, the output gear is arranged at the output end of the gearbox, and the output gear is meshed with the transmission gear.
3. The low shrinkage commercial concrete preparation apparatus as defined in claim 2,
the transmission gear comprises a gear body and two mounting wing rings, the gear body is sleeved outside the stirring tank, the mounting wing rings are arranged on two sides of the gear body, and the mounting wing rings are detachably connected with the outer side wall of the stirring tank.
4. The low shrinkage commercial concrete preparation apparatus as defined in claim 3,
the rotating assembly comprises a driving motor, a reduction gearbox and a driving gear, wherein the driving motor is mounted on the upper surface of the annular top plate, the reduction gearbox is arranged at the output end of the driving motor, the driving gear is arranged at the output end of the reduction gearbox, and the driving gear is meshed with the driven gear.
5. The low shrinkage commercial concrete preparation apparatus as defined in claim 1,
the annular top plate is provided with a rotating hole, a rotating bearing is arranged in the rotating hole, and the rotating ring is embedded in the rotating bearing.
6. The low shrinkage commercial concrete preparation apparatus as defined in claim 1,
the stirring assembly comprises a rotating motor, a stirring shaft and a plurality of stirring blades, wherein the rotating motor is arranged at the bottom of the annular top plate, the output end of the rotating motor is provided with the stirring shaft, the output end of the stirring shaft is uniformly provided with a plurality of stirring blades at intervals, and the stirring blades are all positioned in the stirring tank.
7. A low shrinkage commercial concrete prepared by the preparation equipment of the low shrinkage commercial concrete according to claim 1, characterized in that,
comprises volcanic ash cement, silicate cement, mineral powder, fly ash, sand, basalt stone, broken stone, water, admixture, filling fiber and filler.
8. A method for preparing low shrinkage commercial concrete according to claim 1, comprising the steps of:
weighing volcanic ash cement, silicate cement, mineral powder and fly ash, and uniformly mixing and stirring to obtain a primary mixed material;
weighing sand, basalt stone and broken stone, adding the sand, the basalt stone and the broken stone into the primary mixed material, and uniformly mixing and stirring the materials to prepare a mixed material;
adding a certain mass part of water, an additive and a mixture into the stirring tank, starting the driving assembly, driving the stirring tank to rotate in the mounting ring through the transmission gear, starting the stirring assembly in the rotation process of the stirring tank, and mixing the water, the additive and the mixture in the stirring tank, wherein the output direction of the stirring assembly is opposite to the output direction of the driving assembly;
in the process of uniformly mixing part of raw materials in the stirring tank by utilizing the stirring assembly, adding a mixture of filling fibers and seasonings into the stirring tank in batches through the feeding hopper;
each time adding a mixture of filling fibers and seasonings into the stirring tank, wherein the mixture floats on the surface of raw materials in the stirring tank, when the mixture rotates to the position of the pressing mechanism, starting the rotating assembly, and driving the pressing frame to press downwards towards the inner bottom of the stirring tank through the cooperation of the rotating ring, the threaded rod and the limiting rod, so that the mixture floating on the surface is pressed downwards to different depths of the stirring tank;
after the mixture is added at different depth positions in the stirring tank, the stirring tank is driven to rotate by the driving assembly, and the stirring assembly is matched to stir the raw materials in the stirring tank, so that the raw materials in the stirring tank are fully mixed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310540834.0A CN116901254A (en) | 2023-05-12 | 2023-05-12 | Low-shrinkage commercial concrete and preparation method and equipment thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310540834.0A CN116901254A (en) | 2023-05-12 | 2023-05-12 | Low-shrinkage commercial concrete and preparation method and equipment thereof |
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Citations (5)
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| KR100873414B1 (en) * | 2007-06-27 | 2008-12-11 | (주)나라기술 | Mixing apparatus |
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| CN215434319U (en) * | 2021-08-10 | 2022-01-07 | 河南德途混凝土制品有限公司 | Concrete additive agitating unit |
| CN114933452A (en) * | 2022-05-24 | 2022-08-23 | 绍兴上虞南方普银混凝土有限公司 | Low-shrinkage commercial concrete and preparation method thereof |
| CN218398824U (en) * | 2022-09-02 | 2023-01-31 | 武汉砼安绿建科技(鄂州)有限公司 | High-efficient compounding device is used in commodity concrete production |
-
2023
- 2023-05-12 CN CN202310540834.0A patent/CN116901254A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100873414B1 (en) * | 2007-06-27 | 2008-12-11 | (주)나라기술 | Mixing apparatus |
| CN209254651U (en) * | 2018-09-30 | 2019-08-16 | 石家庄市矿区宏源混凝土搅拌有限公司 | A kind of agitating device of concrete admixture |
| CN215434319U (en) * | 2021-08-10 | 2022-01-07 | 河南德途混凝土制品有限公司 | Concrete additive agitating unit |
| CN114933452A (en) * | 2022-05-24 | 2022-08-23 | 绍兴上虞南方普银混凝土有限公司 | Low-shrinkage commercial concrete and preparation method thereof |
| CN218398824U (en) * | 2022-09-02 | 2023-01-31 | 武汉砼安绿建科技(鄂州)有限公司 | High-efficient compounding device is used in commodity concrete production |
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