CN114835451A - Solid waste concrete containing fibrous material and mixing and stirring device thereof - Google Patents
Solid waste concrete containing fibrous material and mixing and stirring device thereof Download PDFInfo
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- CN114835451A CN114835451A CN202210464212.XA CN202210464212A CN114835451A CN 114835451 A CN114835451 A CN 114835451A CN 202210464212 A CN202210464212 A CN 202210464212A CN 114835451 A CN114835451 A CN 114835451A
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- 239000002910 solid waste Substances 0.000 title claims abstract description 93
- 239000004567 concrete Substances 0.000 title claims abstract description 71
- 239000002657 fibrous material Substances 0.000 title claims abstract description 45
- 238000003756 stirring Methods 0.000 title claims abstract description 31
- 238000002156 mixing Methods 0.000 title claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 105
- 239000002699 waste material Substances 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 239000004568 cement Substances 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 239000010881 fly ash Substances 0.000 claims abstract description 13
- 238000007710 freezing Methods 0.000 claims description 21
- 230000008014 freezing Effects 0.000 claims description 21
- 238000000227 grinding Methods 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 12
- 239000004575 stone Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000011381 foam concrete Substances 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000004088 foaming agent Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 239000011398 Portland cement Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 239000010920 waste tyre Substances 0.000 claims description 4
- 238000005336 cracking Methods 0.000 abstract description 7
- 239000010813 municipal solid waste Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
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Classifications
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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
- 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
-
- 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
- B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
- B28C5/381—Producing cellular concrete
- B28C5/383—Producing cellular concrete comprising stirrers to effect the mixing
- B28C5/385—Stirrers specially adapted therefor
-
- 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
- B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
- B28C5/381—Producing cellular concrete
- B28C5/386—Plants; Systems; Methods
-
- 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
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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)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to the technical field of concrete, and relates to solid waste concrete containing fibrous materials and a mixing and stirring device thereof, wherein the concrete comprises the following materials in parts by weight: 80-180 parts of cement, 150-400 parts of solid waste powder, 80-180 parts of fly ash, 15-50 parts of waste rubber powder, 16-40 parts of fiber powder, 6-10 parts of a water reducing agent and 36-90 parts of water, wherein the main structure of the mixing and stirring device comprises a base, a chassis, a spring, a container, a connecting rod, a threaded rod, a first gear, a first motor, a motor outer cover, a second gear, a stirrer, a sliding block, a second motor, a vertical lead screw, a vertical sliding rail and a PLC (programmable logic controller); the stirrer is of a spiral screen structure, so that materials are uniformly mixed and stirred, the concrete has good shrinkage resistance, high toughness, strong impact resistance, strong frost resistance, improved fracture resistance and enhanced cracking resistance, waste building garbage and the like are recycled, and the cost is low; the stirring device has the advantages of complete integral structure, convenient application and environment-friendly application.
Description
The technical field is as follows:
the invention belongs to the technical field of concrete, and relates to solid waste concrete containing fibrous materials and a mixing and stirring device thereof, in particular to a mixing and stirring device which is used for uniformly dispersing materials and stirring, wherein building solid waste, waste stone and industrial waste residue are crushed and ground to be used as aggregate, and waste rubber powder and fiber powder are added to improve the anti-shrinkage performance of the concrete and improve the toughness, impact resistance and crack resistance of the concrete.
Background art:
the concrete is one of the most important civil engineering materials in the present generation, and is an artificial stone material prepared by mixing a cementing material, granular aggregate (also called aggregate), water, an additive and an admixture which are added if necessary according to a certain proportion, uniformly stirring, densely molding, curing and hardening. Concrete is an important material consumed by manpower and data in building engineering, and has important influence on energy conservation and environmental protection of the whole building. The industrial solid waste is applied to concrete to replace partial cement cementing materials or serve as special aggregate, or the use amount of other natural resources and industrial materials is reduced as much as possible, so that the method is an effective way for saving resources and protecting production environment. At present, industrial solid wastes are accumulated in a large amount in China, so that the method not only occupies a large amount of land, but also pollutes the environment, and becomes an idle resource. If the concrete is prepared by taking the concrete as a raw material, the problems of difficult environmental protection treatment of industrial solid wastes and the like are solved, and the concrete is beneficial to the regeneration and reutilization of resources and changes waste into valuables. The concrete material prepared by utilizing the solid wastes can improve partial performances of concrete, protects the environment and saves energy, so the development of waste concrete is a trend of developing green buildings, and the development of green concrete and green buildings is continuously promoted by new technology and application of new materials. In addition, when the concrete prepared in the prior art is used, the toughness is poor, the concrete is easy to crack, is easy to break and has poor anti-shrinkage performance, so that the anti-shrinkage performance of the concrete is improved, the toughness, the impact resistance and the freezing resistance are improved, the anti-bending capacity of the concrete is increased, the anti-cracking performance of the concrete is improved, and the mixing and stirring device is designed to increase the mixing uniformity of all components in the solid waste concrete containing the fibrous material.
The invention content is as follows:
the invention aims to overcome the defects of the prior art, designs the solid waste concrete containing the fibrous material, solves the problems of poor toughness, easy cracking, easy breaking and poor anti-shrinkage performance of the concrete prepared by the prior art, solves the problems of poor anti-breaking performance and poor anti-cracking performance of the concrete prepared by the prior art, designs the solid waste concrete mixing and stirring device containing the fibrous material, and solves the problems of rough stirring mode and uneven mixing of the materials of the prior concrete.
In order to achieve the purpose, the solid waste concrete containing the fibrous material, provided by the invention, comprises the following materials in parts by weight: 80-180 parts of cement, 150-400 parts of solid waste powder, 80-180 parts of fly ash, 15-50 parts of waste rubber powder, 16-40 parts of fiber powder, 6-10 parts of a water reducing agent and 36-90 parts of water.
Further, the cement is ordinary portland cement P.O42.5; the solid waste powder is building solid waste powder or waste stone powder or waste steel slag powder, and the grinding particle size of the solid waste powder is less than or equal to 100 mu m; the mesh number of the waste rubber powder is 40-120 meshes, and the particle size of the fiber powder is 10-20 mu m.
Further, 8-30 parts by weight of foaming agent is added into the solid waste concrete containing the fibrous material to prepare the solid waste foamed concrete containing the fibrous material.
The preparation method of the solid waste concrete containing the fibrous material comprises the following steps:
1) preparation of solid waste powder: the solid waste powder is obtained by crushing and screening building solid waste powder or waste stone powder or waste steel slag powder to obtain particles with the particle size of less than 40mm, pretreating at 350 ℃ for 4h, grinding for 4h, calcining at 600 ℃ for 2h, heating to 800 ℃, preserving heat for 2h, and cooling to room temperature, wherein the grinding particle size of the solid waste powder is less than or equal to 100 mu m;
2) preparing waste rubber powder: sorting, cutting and cleaning waste tires or waste rubber blocks to form rubber blocks, placing the treated rubber blocks in a freezing box, cooling the freezing box to-40 ℃, keeping the temperature at-40 ℃ for 3 hours, freezing the rubber blocks thoroughly at one time to make the rubber blocks become brittle, cooling the freezing box to-90 ℃, keeping the temperature at-90 ℃ for 3 hours, freezing for a second time to further strengthen the brittleness of the rubber blocks, placing the rubber blocks in a mechanical grinding device, and grinding the low-temperature rubber blocks into waste rubber powder of 40-80 meshes;
3) uniformly mixing the solid waste powder prepared in the step 1), the waste rubber powder prepared in the step 2), cement, fly ash, fiber powder and a water reducing agent according to the following weight parts: 80-180 parts of cement, 150-400 parts of solid waste powder, 80-180 parts of fly ash, 15-50 parts of waste rubber powder, 16-40 parts of fiber powder and 6-10 parts of a water reducing agent;
4) adding 36-90 parts by weight of water into the mixed material prepared in the step 3), and stirring to prepare the solid waste concrete containing the fibrous material.
Further, 8-30 parts by weight of foaming agent is added into the solid waste concrete containing the fibrous material prepared in the step 4), and the mixture is uniformly stirred to prepare the solid waste foamed concrete containing the fibrous material.
A mixing and stirring device for solid waste concrete containing fibrous materials comprises a main structure: the device comprises a base, a chassis, a spring, a container, a connecting rod, a threaded rod, a first gear, a first motor, a motor outer cover, a second gear, a stirrer, a sliding block, a second motor, a vertical lead screw, a vertical sliding rail and a PLC (programmable logic controller); a circular base plate is fixedly arranged on the base, four springs are uniformly and circumferentially distributed and fixed on the circular base plate, the top ends of the springs are fixedly arranged on the bottom surface of the container, a flange structure protruding out of the outer wall is arranged around the upper edge of the circular opening container, a connecting rod in the vertical direction is relatively and fixedly arranged on the upper surface of the flange structure, the connecting rod is provided with an internal thread structure and is in threaded connection with a threaded rod with external threads, a first gear is fixedly arranged at the upper end of the threaded rod, and the upper end part of the threaded rod is arranged in the motor outer cover through a bearing; the first motor is fixed in the motor outer cover, a second gear is fixedly arranged on an output shaft of the first motor, the diameter of the second gear is smaller than that of the first gears on the two sides, the second gear and the first gears on the two sides are in gear engagement transmission, and a stirrer is fixedly arranged on the output shaft of the first motor; the motor outer cover is fixed on a vertical sliding rail, a sliding block with an internal thread through hole is fixedly arranged on the side surface of the container, the second motor is fixed on the base, an output shaft of the second motor is fixedly provided with a vertical lead screw, the other end of the vertical lead screw is fixedly installed through a bearing supporting seat fixed on the vertical sliding rail, the sliding block is sleeved on the vertical lead screw, the left side part of the sliding block is arranged in an inner groove of the vertical sliding rail, and the vertical sliding rail is fixedly arranged on the base; the PLC controller is fixedly arranged on the base, is in electrical information connection with the first motor and the second motor, and controls the first motor and the second motor to rotate forwards and backwards and stop rotating for a long time.
Furthermore, the stirrer is of a spiral metal sheet structure, through holes are uniformly formed in the metal sheet to form a spiral screen structure, and partial materials can be conveniently scattered from the through holes, so that the materials are uniformly mixed and stirred.
When the mixing and stirring device for the solid waste concrete containing the fibrous materials is used, the solid waste concrete is thrown into a container according to the proportion of the materials of the concrete, a PLC controller controls a first motor and a second motor to rotate forwardly, an output shaft of the first motor drives a stirrer to rotate, the materials in the container are mixed and stirred, a second gear on the output shaft of the first motor drives first gears on two sides to rotate, the first gears drive a threaded rod to rotate, the threaded rod rotates inwards from the inside of a connecting rod, a spring at the bottom of the container is stretched, meanwhile, the PLC controller controls the second motor to rotate forwardly, a sliding block on the side face of the container slides upwards in a vertical sliding rail, and the container moves upwards; when corotation reached when setting time, the first motor of PLC controller control and second motor reversal, the first gear rotation of second gear drive both sides, the threaded rod is rotatory from the connecting rod to the outside, with the spring compression of container bottom, PLC controller control second motor reversal simultaneously, the slider of container side slides down in vertical slide rail, the container moves down, first motor output shaft drives the agitator and rotates, the container is kept away from to the agitator simultaneously, the material scatters in the spiral sieve of agitator from in the container, the agitator is in the stirring, the container reciprocates, strengthen the effect of mixing stirring and the degree of consistency of mixture.
Further, the solid waste concrete containing the fibrous material is applied to underwater buildings or seawater pumping devices for coating and the like, so that the surface corrosion and cracking are prevented.
Compared with the prior art, the solid waste concrete containing the fibrous material has the advantages of good anti-shrinkage performance, high toughness, strong impact resistance, strong frost resistance, improved fracture resistance, enhanced cracking resistance, resource saving, environment protection, low cost and wide application, and can recycle waste building rubbish and the like; the concrete mixing and stirring device is uniform in stirring and mixing, is beneficial to the performance of each property of concrete, has complete, scientific and reasonable integral structure, is convenient to apply and is environment-friendly in application.
Description of the drawings:
fig. 1 is a schematic view of the overall structural principle of a mixing and stirring apparatus for mixing and stirring concrete.
Description of reference numerals: base 1, chassis 2, spring 3, container 4, connecting rod 5, threaded rod 6, first gear 7, first motor 8, motor dustcoat 9, second gear 10, agitator 11, slider 12, second motor 13, vertical lead screw 14, vertical slide rail 15, PLC controller 16, through-hole 17.
The specific implementation mode is as follows:
the invention is further illustrated by the following specific examples in combination with the accompanying drawings.
Example 1:
in the solid waste concrete containing the fibrous material according to the embodiment, the concrete comprises the following materials in parts by weight: 80-180 parts of cement, 150-400 parts of solid waste powder, 80-180 parts of fly ash, 15-50 parts of waste rubber powder, 16-40 parts of fiber powder, 6-10 parts of a water reducing agent and 36-90 parts of water.
Further, the cement is ordinary portland cement P.O42.5; the solid waste powder is building solid waste powder or waste stone powder or waste steel slag powder, and the grinding particle size of the solid waste powder is less than or equal to 100 mu m; the mesh number of the waste rubber powder is 40-120 meshes, and the particle size of the fiber powder is 10-20 mu m.
Furthermore, the fiber powder adopts high-strength and high-modulus polyvinyl alcohol fiber powder.
Further, 8-30 parts by weight of foaming agent is added into the solid waste concrete containing the fibrous material to prepare the solid waste foamed concrete containing the fibrous material.
The preparation method of the solid waste concrete containing the fibrous material comprises the following steps:
1) preparation of solid waste powder: the solid waste powder is obtained by crushing and screening building solid waste powder or waste stone powder or waste steel slag powder to obtain particles with the particle size of less than 40mm, pretreating at 350 ℃ for 4h, grinding for 4h, calcining at 600 ℃ for 2h, heating to 800 ℃, preserving heat for 2h, and cooling to room temperature, wherein the grinding particle size of the solid waste powder is less than or equal to 100 mu m;
3) preparing waste rubber powder: sorting, cutting and cleaning waste tires or waste rubber blocks to form rubber blocks, placing the treated rubber blocks in a freezing box, cooling the freezing box to-40 ℃, keeping the temperature at-40 ℃ for 3 hours, freezing the rubber blocks thoroughly at one time to make the rubber blocks become brittle, cooling the freezing box to-90 ℃, keeping the temperature at-90 ℃ for 3 hours, freezing for a second time to further strengthen the brittleness of the rubber blocks, placing the rubber blocks in a mechanical grinding device, and grinding the low-temperature rubber blocks into waste rubber powder of 40-80 meshes;
3) uniformly mixing the solid waste powder prepared in the step 1), the waste rubber powder prepared in the step 2), cement, fly ash, fiber powder and a water reducing agent according to the following weight parts: 80-180 parts of cement, 150-400 parts of solid waste powder, 80-180 parts of fly ash, 15-50 parts of waste rubber powder, 16-40 parts of fiber powder and 6-10 parts of a water reducing agent;
4) adding 36-90 parts by weight of water into the mixed material prepared in the step 3), and stirring to prepare the solid waste concrete containing the fibrous material.
Further, 8-30 parts by weight of foaming agent is added into the solid waste concrete containing the fibrous material prepared in the step 4), and the mixture is uniformly stirred to prepare the solid waste foamed concrete containing the fibrous material.
The mixing and stirring device for the solid waste concrete containing the fibrous material comprises a main structure: the device comprises a base 1, a chassis 2, a spring 3, a container 4, a connecting rod 5, a threaded rod 6, a first gear 7, a first motor 8, a motor outer cover 9, a second gear 10, a stirrer 11, a sliding block 12, a second motor 13, a vertical lead screw 14, a vertical sliding rail 15 and a PLC (programmable logic controller) 16; a circular chassis 2 is fixedly arranged on the base 1, four springs 3 are uniformly and circumferentially distributed and fixed on the circular chassis 2, the top ends of the springs 3 are fixedly arranged on the bottom surface of the container 4, a flange structure protruding out of the outer wall is arranged around the upper edge of the circular opening container 4, a connecting rod 5 in the vertical direction is relatively and fixedly arranged on the upper surface of the flange structure, the connecting rod 5 is provided with an internal thread structure and is in threaded connection with a threaded rod 6 with external threads, a first gear 7 is fixedly arranged at the upper end of the threaded rod 6, and the upper end part of the threaded rod 6 is arranged in a motor outer cover 9 through a bearing; the first motor 8 is fixed in the motor outer cover 9, the output shaft of the first motor is fixedly provided with a second gear 10, the diameter of the second gear 10 is smaller than that of the first gears 7 at two sides, the second gear 10 and the first gears 7 at two sides are in gear engagement transmission, and the output shaft of the first motor 8 is fixedly provided with a stirrer 11; the motor outer cover 9 is fixed on a vertical sliding rail 15, a sliding block 12 with an internal thread through hole is fixedly arranged on the side surface of the container 4, the second motor 13 is fixed on the base 1, a vertical lead screw 14 is fixedly arranged on an output shaft of the second motor, the other end of the vertical lead screw 14 is fixedly installed through a bearing supporting seat fixed on the vertical sliding rail 15, the sliding block 12 is sleeved on the vertical lead screw 14, the left side part of the sliding block 12 is arranged in an inner groove of the vertical sliding rail 15, and the vertical sliding rail 15 is fixedly arranged on the base 1; the PLC controller 16 is fixedly arranged on the base 1, and the PLC controller 16 is in electrical information connection with the first motor 8 and the second motor 13 to control the first motor 8 and the second motor 13 to rotate forwards and backwards and stop rotating for a long time.
Further, the stirrer 11 is of a spiral metal sheet structure, through holes 17 are uniformly formed in the metal sheet to form a spiral screen structure, so that partial materials can be conveniently scattered from the through holes 17, and the materials are uniformly mixed and stirred.
Further, the spring 3 has a sufficiently high strength.
When the mixing and stirring device for the solid waste concrete containing the fibrous materials is used, the solid waste concrete is thrown into the container 4 according to the proportion of the materials of the concrete, the PLC 16 controls the first motor 8 and the second motor 13 to rotate forwardly, the output shaft of the first motor 8 drives the stirrer 11 to rotate, the materials in the container 4 are mixed and stirred, the second gear 10 on the output shaft of the first motor 8 drives the first gears 7 on two sides to rotate, the first gears 7 drive the threaded rod 6 to rotate, the threaded rod 6 rotates inwards from the connecting rod 5, the spring 3 at the bottom of the container 4 is stretched, meanwhile, the PLC 16 controls the second motor 13 to rotate forwardly, the sliding block 12 on the side surface of the container 4 slides upwards in the vertical sliding rail 15, and the container 4 moves upwards; when corotation arrives when setting time, PLC controller 16 control first motor 8 and the reversal of second motor 13, second gear 10 drives the first gear 7 rotation of both sides, threaded rod 6 is rotatory from connecting rod 5 is inside to outside, compress the spring 3 of 4 bottoms of container, PLC controller 16 control second motor 13 reversal simultaneously, slider 12 of 4 sides of container slides down in vertical slide rail 15, container 4 moves down, 8 output shafts of first motor drive agitator 11 rotatory, agitator 11 keeps away from container 4 simultaneously, the material scatters from the spiral sieve downthehole of agitator 11 in the container 4, agitator 11 is in the stirring, container 4 reciprocates, strengthen the effect of mixing stirring and the degree of consistency of mixture.
Further, the lead screw be the polished rod cylinder, polished rod cylinder's bottom is installed on base 1, polished rod cylinder's upper end is installed on vertical slide rail 15, slider 12 of container 4 side has the through-hole structure, slider 12 establishes on the polished rod through the through-hole cover, and slider 12 sets up in vertical slide rail 15 simultaneously.
Further, the gear transmission, the connecting rod 5 and the threaded rod 6 are replaced by a hydraulic rod and a hydraulic cylinder, and the hydraulic cylinder is fixed in the motor housing 9.
Further, the solid waste concrete containing the fibrous material is applied to underwater buildings or seawater pumping devices for coating and the like, so that the surface corrosion and cracking are prevented.
Example 2:
in the solid waste concrete containing the fibrous material according to the embodiment, the concrete comprises the following materials in parts by weight as in embodiment 1: 120 parts of cement, 310 parts of solid waste powder, 100 parts of fly ash, 30 parts of waste rubber powder, 25 parts of fiber powder, 8 parts of water reducing agent and 65 parts of water.
Further, the cement is ordinary portland cement P.O42.5; the solid waste powder is building solid waste powder or waste stone powder or waste steel slag powder, and the grinding particle size of the solid waste powder is 80 mu m; the mesh number of the waste rubber powder is 60 meshes, and the particle size of the fiber powder is 20 mu m.
Furthermore, the fiber powder adopts high-strength and high-modulus polyvinyl alcohol fiber powder.
Furthermore, 25 parts by weight of foaming agent is added into the solid waste concrete containing the fibrous material to prepare the solid waste foamed concrete containing the fibrous material.
The preparation method of the solid waste concrete containing the fibrous material comprises the following steps:
1) preparation of solid waste powder: the solid waste powder is obtained by crushing and screening building solid waste powder or waste stone powder or waste steel slag powder to obtain particles with the particle size of less than 40mm, pretreating at 350 ℃ for 4h, grinding for 4h, calcining at 600 ℃ for 2h, heating to 800 ℃, preserving heat for 2h, and cooling to room temperature, wherein the grinding particle size of the solid waste powder is 80 microns;
4) preparing waste rubber powder: sorting, cutting and cleaning waste tires or waste rubber blocks to form rubber blocks, placing the treated rubber blocks in a freezing box, cooling the freezing box to-40 ℃, keeping the temperature at-40 ℃ for 3h, freezing the rubber blocks thoroughly at one time to make the rubber blocks become brittle, cooling the freezing box to-90 ℃, keeping the temperature at-90 ℃ for 3h, freezing for a second time to further strengthen the brittleness of the rubber blocks, placing the rubber blocks in a mechanical grinding device, and grinding the low-temperature rubber blocks into waste rubber powder of 60 meshes;
3) uniformly mixing the solid waste powder prepared in the step 1), the waste rubber powder prepared in the step 2), cement, fly ash, fiber powder and a water reducing agent according to the following weight parts: 120 parts of cement, 310 parts of solid waste powder, 100 parts of fly ash, 30 parts of waste rubber powder, 25 parts of fiber powder and 8 parts of water reducing agent;
4) adding 65 parts by weight of water into the mixed material prepared in the step 3), and stirring to prepare the solid waste concrete containing the fibrous material.
Further, 20 parts by weight of foaming agent is added into the solid waste concrete containing the fibrous material prepared in the step 4), and the mixture is uniformly stirred to prepare the solid waste foamed concrete containing the fibrous material.
The main structure of the mixing and stirring device for solid waste concrete containing fibrous materials is the same as that of embodiment 1, the number of spiral turns of the stirrer 11 is 3-8, the outer diameter of the stirrer 11 is 0.5-0.9 times of the inner diameter of the container 4, and the diameter of the through hole 17 is 5-20 mm.
Claims (6)
1. The solid waste concrete containing the fibrous material is characterized in that the concrete comprises the following materials in parts by weight: 80-180 parts of cement, 150-400 parts of solid waste powder, 80-180 parts of fly ash, 15-50 parts of waste rubber powder, 16-40 parts of fiber powder, 6-10 parts of a water reducing agent and 36-90 parts of water.
2. The solid waste concrete containing the fibrous material as claimed in claim 1, wherein the cement is Portland cement P.O42.5, the solid waste powder is architectural solid waste powder, waste stone powder or waste steel slag powder, the grinding particle size of the solid waste powder is less than or equal to 100 μm, the mesh number of the waste rubber powder is 40-120 meshes, and the particle size of the fibrous powder is 10-20 μm.
3. The solid waste foamed concrete containing the fibrous material is characterized in that 8-30 parts by weight of foaming agent is added into any one of the solid waste concrete containing the fibrous material in the claim 1 or 2 to prepare the solid waste foamed concrete containing the fibrous material.
4. A preparation method of solid waste concrete containing fibrous materials comprises the following steps:
1) preparation of solid waste powder: the solid waste powder is obtained by crushing and screening building solid waste powder or waste stone powder or waste steel slag powder to obtain particles with the particle size of less than 40mm, pretreating at 350 ℃ for 4 hours, grinding for 4 hours, calcining at 600 ℃ for 2 hours, heating to 800 ℃, preserving heat for 2 hours, and cooling to room temperature, wherein the grinding particle size of the solid waste powder is less than or equal to 100 mu m;
2) preparing waste rubber powder: sorting, cutting and cleaning waste tires or waste rubber blocks to form rubber blocks, placing the treated rubber blocks in a freezing box, cooling the freezing box to-40 ℃, keeping the temperature at-40 ℃ for 3 hours, freezing the rubber blocks thoroughly at one time to make the rubber blocks become brittle, cooling the freezing box to-90 ℃, keeping the temperature at-90 ℃ for 3 hours, freezing for a second time to further strengthen the brittleness of the rubber blocks, placing the rubber blocks in a mechanical grinding device, and grinding the low-temperature rubber blocks into waste rubber powder of 40-80 meshes;
3) uniformly mixing the solid waste powder prepared in the step 1), the waste rubber powder prepared in the step 2), cement, fly ash, fiber powder and a water reducing agent according to the following weight parts: 80-180 parts of cement, 150-400 parts of solid waste powder, 80-180 parts of fly ash, 15-50 parts of waste rubber powder, 16-40 parts of fiber powder and 6-10 parts of a water reducing agent;
4) adding 36-90 parts by weight of water into the mixed material prepared in the step 3), and stirring to prepare the solid waste concrete containing the fibrous material.
5. A mixing and stirring device for solid waste concrete containing fibrous materials is characterized in that a main body structure comprises: the device comprises a base, a chassis, a spring, a container, a connecting rod, a threaded rod, a first gear, a first motor, a motor outer cover, a second gear, a stirrer, a sliding block, a second motor, a vertical lead screw, a vertical sliding rail and a PLC (programmable logic controller); a circular base plate is fixedly arranged on the base, four springs are uniformly and circumferentially distributed and fixed on the circular base plate, the top ends of the springs are fixedly arranged on the bottom surface of the container, a flange structure protruding out of the outer wall is arranged around the upper edge of the circular opening container, a connecting rod in the vertical direction is relatively and fixedly arranged on the upper surface of the flange structure, the connecting rod is provided with an internal thread structure and is in threaded connection with a threaded rod with external threads, a first gear is fixedly arranged at the upper end of the threaded rod, and the upper end part of the threaded rod is arranged in the motor outer cover through a bearing; the first motor is fixed in the motor outer cover, a second gear is fixedly arranged on an output shaft of the first motor, the diameter of the second gear is smaller than that of the first gears on the two sides, the second gear and the first gears on the two sides are in gear engagement transmission, and a stirrer is fixedly arranged on the output shaft of the first motor; the motor outer cover is fixed on a vertical sliding rail, a sliding block with an internal thread through hole is fixedly arranged on the side surface of the container, the second motor is fixed on the base, an output shaft of the second motor is fixedly provided with a vertical lead screw, the other end of the vertical lead screw is fixedly installed through a bearing supporting seat fixed on the vertical sliding rail, the sliding block is sleeved on the vertical lead screw, the left side part of the sliding block is arranged in an inner groove of the vertical sliding rail, and the vertical sliding rail is fixedly arranged on the base; the PLC controller is fixedly arranged on the base, is in electrical information connection with the first motor and the second motor, and controls the first motor and the second motor to rotate forwards and backwards and stop rotating for a long time.
6. The mixing and stirring device for the solid waste concrete containing the fibrous material as claimed in claim 5, wherein the stirrer is of a spiral metal sheet structure, and through holes are uniformly formed in the metal sheet to form a spiral screen structure, so that part of the material can be scattered from the through holes, and the material can be uniformly mixed and stirred.
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| CN202210464212.XA CN114835451A (en) | 2022-04-29 | 2022-04-29 | Solid waste concrete containing fibrous material and mixing and stirring device thereof |
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| CN202210464212.XA CN114835451A (en) | 2022-04-29 | 2022-04-29 | Solid waste concrete containing fibrous material and mixing and stirring device thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103507183A (en) * | 2013-09-05 | 2014-01-15 | 孔赟荣 | Rubber powder producing equipment |
| CN106738449A (en) * | 2015-11-23 | 2017-05-31 | 天津市明基金泰橡塑制品加工有限公司 | A kind of method that fine rubber powder is processed with junked tire |
| CN107617360A (en) * | 2017-11-02 | 2018-01-23 | 安徽唯诗杨信息科技有限公司 | A kind of efficiently coating stirring mixer |
| CN110734256A (en) * | 2019-11-15 | 2020-01-31 | 扬州大学 | foam concrete doped with recycled brick powder and preparation method thereof |
| CN110922116A (en) * | 2019-12-02 | 2020-03-27 | 湖南绿生科技发展有限公司 | Chloroprene rubber-alkali residue-cement composite cementing material, and preparation method and device thereof |
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2022
- 2022-04-29 CN CN202210464212.XA patent/CN114835451A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103507183A (en) * | 2013-09-05 | 2014-01-15 | 孔赟荣 | Rubber powder producing equipment |
| CN106738449A (en) * | 2015-11-23 | 2017-05-31 | 天津市明基金泰橡塑制品加工有限公司 | A kind of method that fine rubber powder is processed with junked tire |
| CN107617360A (en) * | 2017-11-02 | 2018-01-23 | 安徽唯诗杨信息科技有限公司 | A kind of efficiently coating stirring mixer |
| CN110734256A (en) * | 2019-11-15 | 2020-01-31 | 扬州大学 | foam concrete doped with recycled brick powder and preparation method thereof |
| CN110922116A (en) * | 2019-12-02 | 2020-03-27 | 湖南绿生科技发展有限公司 | Chloroprene rubber-alkali residue-cement composite cementing material, and preparation method and device thereof |
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Application publication date: 20220802 |