CN114735979A - Highway concrete formula and processing technology - Google Patents
Highway concrete formula and processing technology Download PDFInfo
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- CN114735979A CN114735979A CN202210344453.0A CN202210344453A CN114735979A CN 114735979 A CN114735979 A CN 114735979A CN 202210344453 A CN202210344453 A CN 202210344453A CN 114735979 A CN114735979 A CN 114735979A
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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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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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
Abstract
The invention belongs to the technical field of concrete roads, and particularly relates to a road concrete formula and a processing technology, wherein the road concrete processing technology comprises the following steps: s1: screening materials, namely screening the particle diameters of slag granules, steel slag aggregates and sand in fine materials; s2: preparing a building waste recycled aggregate, selecting waste air bricks on a construction site, transferring the air bricks to an aggregate preparation site, conveying the air bricks to aggregate production equipment through a conveyor belt, crushing and finely crushing the air bricks by the aggregate production equipment, and spraying an organic silicon waterproof oil-resistant agent after crushing so that a layer of organic silicon waterproof oil-resistant agent film is attached to the surface of the recycled aggregate to reduce the water absorption performance of the recycled aggregate; s3: preparing the recycled aggregate with the organic silicon waterproof and oil-resistant agent film prepared in the S2 into the highway concrete according to the proportion, and performing a slump test on the highway concrete before paving.
Description
Technical Field
The invention belongs to the technical field of concrete roads, and particularly relates to a road concrete formula and a processing technology.
Background
The cement concrete pavement is a pavement which takes cement concrete as a main material to make a surface layer, is called a concrete pavement for short, is a high-grade pavement, and can realize resource recycling and save the laying cost of a concrete road by adding various waste materials into concrete in order to meet the corresponding resource recycling policy at present.
A Chinese patent with publication number CN110465362A discloses a construction waste crushing recycling device, which comprises a feeding port, a motor, a bracket seat, a discharging tray, an equalizing zone and a feeding box, wherein the feeding port is welded with the equalizing zone, one end of the equalizing zone is provided with two discharging ports, the two discharging ports are respectively arranged on the discharging tray in a one-to-one correspondence manner, the discharging tray and the feeding box are horizontally arranged and are communicated with each other, the feeding box is arranged in the bracket seat and is positioned at the bottom end of the equalizing zone, the discharging tray is communicated with the feeding box by adopting a pipeline, a large amount of organic silicon waterproof oil-resistant agent is loaded in the feeding box and is densely distributed on the borne regenerated aggregate in the discharging tray in a spraying manner through a liquid outlet pore, and the generated regenerated aggregate is subjected to surface treatment of the organic silicon waterproof oil-resistant agent because the waterproof oil-resistant agent is solidified into a film, so that gaps and cracks on the surface of the regenerated aggregate are blocked, and because the waterproof and oil-resistant agent has good hydrophobicity, the water absorption rate of the recycled aggregate can be effectively reduced, and the preparation of recycled concrete is facilitated.
Above-mentioned broken recycle equipment of building rubbish discarded object, the realization is to broken aggregate surface tectorial membrane, but in the crushing process, the production not only has the fragment that needs, also there is the piece simultaneously, this piece attaches on the aggregate surface, when organosilicon waterproof oil-resistant agent sprays the tectorial membrane to the aggregate, because clastic cover, make the fragment surface can not contact with organosilicon waterproof oil-resistant agent comprehensively, after the aggregate is put into use, organosilicon waterproof oil-resistant agent is failed the complete drying, the piece drops the fragment, bare exposure is not covered by organosilicon waterproof oil-resistant agent on the fragment, lead to the aggregate still to have stronger water absorption ability, lead to free water in the concrete of preparing to reduce, concrete mobility reduces, slump loss, influence the concrete quality.
Therefore, the invention provides a highway concrete formula and a processing technology.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a highway concrete formula, which comprises the following raw materials in parts by weight:
15-25 parts of Portland cement;
35-45 parts of coarse materials;
25-35 parts of fine materials;
10-15 parts of organosilicon waterproof and oil-resistant agent;
water is added to 100 parts;
preferably, the coarse material comprises stones, and the stones with the diameter of 10-30MM are selected; the fine materials comprise slag granules, steel slag aggregates, sand and building waste recycled aggregates; the diameter specification of the slag granule is 2-4 MM; the diameter specification of the steel slag aggregate particles is 2-4 MM; the diameter specification of the sand particles is 1-3 MM; the diameter of the waste recycled aggregate particles of the building is between 1 and 5 MM.
A highway concrete processing technology is used for processing the highway concrete formula and comprises the following steps:
s1: screening materials, namely screening the particle diameters of slag granules, steel slag aggregates and sand in the fine materials, and controlling the particle diameters of the slag granules to be 2-4MM, the steel slag aggregates to be 2-4MM and the sand to be 1-3MM for later use;
s2: preparing building waste recycled aggregate, namely selecting air bricks discarded in construction sites, transferring the air bricks to an aggregate preparation site, conveying the air bricks to aggregate production equipment through a conveyor belt, crushing and finely crushing the air bricks by the aggregate production equipment, and spraying organic silicon waterproof oil-resistant agent after crushing to ensure that a layer of organic silicon waterproof oil-resistant agent film is attached to the surface of the recycled aggregate and reduce the water absorption performance of the recycled aggregate; the aggregate is regenerated by the air bricks, gaps among the stones are filled, the usage amount of sand is reduced, and the paving cost of the concrete road is saved;
s3: preparing the recycled aggregate with the organic silicon waterproof and oil-resistant agent film prepared in the S2 into the highway concrete according to the proportion, and performing a slump test on the highway concrete before paving.
Preferably, the aggregate production plant comprises a primary crushing unit and a secondary crushing unit; the primary crushing unit is positioned above the secondary crushing unit and comprises a first crushing roller and a crushing barrel; the first crushing roller is driven by a motor, the first crushing roller is connected to a crushing cylinder in a rotating manner and is connected into the crushing cylinder, the crushing cylinder is horn-shaped, a plurality of discharge holes are formed in the inner end face of the crushing cylinder, a flow guide cover is arranged below the crushing cylinder, and the flow guide cover is connected to a secondary crushing unit;
the secondary crushing unit comprises a guide cover, a crushing box and a second crushing roller; one end of the guide cover is communicated with the air guide cover, the other end of the guide cover is communicated with an inlet at the upper end of the crushing box, two crushing rollers II are symmetrically installed in the crushing box and driven by a motor, and a discharge port at the lower end of the crushing box is erected in an aggregate preparation field through a support; air bricks rise through a conveyor belt and are conveyed into a crushing cylinder, the air bricks are beaten and crushed by crushing teeth on the surface of a first crushing roller, waste air bricks are crushed, then the air bricks flow through a discharge hole and flow into a crushing box along a flow guide cover, a second crushing roller further extrudes and crushes the air bricks, and the specifications of the second crushing roller in each crushing box are different, so that aggregates with different diameters are crushed, the aggregates with different diameters fully fill gaps among stones, the compactness of a concrete road is improved, the strength and the durability of the concrete road are enhanced, the waste air bricks are recycled, the reasonable recycling of resources is realized, the resource recycling policy is met, the usage amount of sand is reduced, and the laying cost of the concrete road is saved.
Preferably, a grinding disc is arranged between the lower end of the first crushing roller and the inner bottom of the crushing barrel, a gap is reserved between the lower plate surface of the grinding disc and the inner bottom of the crushing barrel, and a plurality of crushing notches are formed in the outer edge of the grinding disc; a buffer groove is formed in the grinding disc, a buffer spring is arranged in the buffer groove, and a rotating shaft at the lower end of the first crushing roller vertically penetrates through the buffer groove in a sliding manner and is connected in the buffer groove through the buffer spring in a rotating manner; air brick is after a crushing roller is broken, fall into the interior bottom to broken section of thick bamboo gradually, a crushing roller drives through the pivot and rolls the dish and rotate, air brick granule partly falls into to the discharge gate, the top of discharge gate is put to another part, it cuts off the breakage with it to grind broken breach on the dish this moment, further handle its fragmentation, reduce No. two crushing rollers to the broken pressure of air brick, when making the aggregate flow from broken incasement, the aggregate need not put into use through the screening again, improve the aggregate one-time molding effect that the breakage produced.
Preferably, the rotating shaft penetrates through the lower end face of the crushing barrel in a rotating mode, the lower end face of the rotating shaft is fixedly connected with a collision rod, and the collision rod is attached to the lower end face of the crushing barrel to rotate; in the discharge opening was arranged in to air fragment partly, the lower hole end of discharge opening was arranged in to another part, and the pivot drives the impact bar and rotates, and the impact bar will stretch out the air brick piece of discharge opening lower extreme and smash, handles its fragmentation again, reduces No. two crushing rollers to the broken pressure of air fragment, and the rotation of grinding disc and impact bar drives the shake of air brick piece simultaneously and drops for the clastic whereabouts of air fragment.
Preferably, two vertical rows of atomizing spray heads are arranged at the symmetrical positions of the discharge port of the crushing box, organic silicon waterproof and oil-resistant agent is sprayed in the atomizing spray heads, and the two vertical rows of atomizing spray heads are arranged in a vertically staggered manner;
each guide cover is provided with a dust removal unit; the dust removal unit comprises a blower and a filter screen; the air blower is fixedly connected to the upper half position of the guide cover, a window is formed in the guide cover on the opposite surface of the air blower, the lower edge of the window is lower than the air blower, and a filter screen is arranged in the window; the air brick is light and porous, and then is crushed to generate a large amount of micro cracks in the air brick, so that the porosity of the recycled aggregate is high, the water absorption of the recycled aggregate is increased, and when concrete is prepared, the aggregate must absorb moisture from the concrete mixture, so that free water in the concrete mixture is reduced, the fluidity of the concrete is reduced, the slump loss is caused, and the quality of the concrete is influenced; therefore, a layer of organic silicon waterproof oil-resistant agent is attached to the surface of the aggregate, and the organic silicon waterproof oil-resistant agent forms a layer of closed protective film on the surface of the aggregate to block pores and cracks on the surface of the recycled aggregate; meanwhile, after the air brick is crushed, one part of the air brick forms fine fragments, the other part of the air brick is in a fragment shape, the fragments are attached to the surfaces of the fragments, when the air brick is sprayed by the organic silicon waterproof oil-resistant agent, the fragments prevent the organic silicon waterproof oil-resistant agent from adhering to a coated film, when the organic silicon waterproof oil-resistant agent is not dried in time, the fragments fall off the surfaces of the fragments, the parts, which are not coated by the organic silicon waterproof oil-resistant agent, of the fragments are exposed, and when the aggregate is put into use, the shells of the parts, which are not coated by the film, absorb moisture, so that free water in the concrete mixture is reduced; for this purpose, the dust removal unit is arranged to blow and discharge the fragments generated after crushing; the air brick fragments fall into the guide cover from the crushing cylinder, the air blower blows air to the air brick fragments, the fragments in the air brick fragments are blown away from the fragments and are discharged out of the guide cover, and the fragments are separated; piece free fall, the horizontal wind of deuterogamying, the whereabouts of parabola trace is done to piece self, and the lower limb of window is less than the air-blower for the effective discharge guide cover of piece, and be in the restriction of filter screen, make piece discharge guide cover, the fragment still remains in guide cover, prevents that the fragment from being blown the department guide cover, causes the unrestrained of fragment aggregate to spill extravagantly.
Preferably, a dust extraction unit is arranged in the middle of the crushing box and comprises an exhaust fan and a drainage cover, one end of the drainage cover is arranged below the space between the two crushing rollers II, the other end of the drainage cover is communicated with the exhaust fan, and the exhaust fan is fixedly connected to the drainage cover; no. two crushing rollers are when to aggregate secondary crushing, also can produce the piece, for this reason through set up on broken case and take out the dirt unit, through the air exhauster, take out the piece from broken case, make the piece that produces take out from the piece in the secondary crushing, thereby waterproof oil-resistant agent of organosilicon covers on the piece completely, prevent that the piece from sheltering from piece and waterproof oil-resistant agent contact of organosilicon, guarantee the waterproof oil-resistant agent coverage rate of fragment aggregate surface organosilicon, thereby reduce the hydroscopicity of aggregate, improve the quality that the concrete was prepared then.
Preferably, a lower outlet between two adjacent crushing rollers is arranged in a funnel shape, and the outlet is rectangular; the export sets to hopper-shaped for the whereabouts is concentrated to broken fragment to the import department whereabouts of attached drainage cover improves clastic separation effect in the fragment, reduces the fragment in the fragment and accounts for the ratio, reduces fragment surface piece coverage, improves the waterproof anti-oiling agent coverage of organosilicon.
Preferably, the spraying end of each atomizing nozzle is rectangular, and the spraying ports of the atomizing nozzles are wavy; the spray ports of the atomizing spray heads are arranged in a wavy manner, so that the sprayed organic silicon waterproof and oil-resistant agent is sprayed on the fragments in a wavy manner and in a layered manner, and the two vertical rows of atomizing spray heads are arranged in a vertically staggered manner, so that the fragments are turned upside down under the impact action of the organic silicon waterproof and oil-resistant agent in the falling process of the fragments, the fragments are fully contacted with the organic silicon waterproof and oil-resistant agent, the surface film coverage rate of the fragments is improved, and the water absorption effect of the fragments is reduced.
The invention has the following beneficial effects:
1. according to the highway concrete formula and the processing technology, the air bricks are crushed by the first crushing roller and the second crushing roller to prepare the aggregates with different diameters, so that the aggregates with different diameters are fully filled in gaps among stones, the compactness of a concrete highway is improved, the strength and the durability of the concrete highway are enhanced, the waste air bricks are recycled, the reasonable recycling of resources is realized, the policy of resource recycling is met, the usage amount of sand is reduced, and the laying cost of the concrete highway is saved.
2. According to the highway concrete formula and the processing technology, fragments generated by crushing are separated into fragments through the air blower and the exhaust fan, the probability of covering the fragments on the fragments is reduced, the organic silicon waterproof oil-resistant agent is more comprehensively covered on the fragments, the coverage rate of the organic silicon waterproof oil-resistant agent on the surfaces of the fragments is ensured, the water absorption of the aggregates is reduced, and the quality of concrete preparation is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a road concrete processing process according to the present invention;
FIG. 2 is a perspective view of an aggregate producing apparatus according to the present invention;
FIG. 3 is a perspective view of the crushing barrel of the present invention;
FIG. 4 is a view showing the combination of the dust removing unit and the guide housing in the present invention;
FIG. 5 is a view of the crushing box and the dust extraction unit of the present invention;
FIG. 6 is a cross-sectional view of a crushing barrel of the present invention;
FIG. 7 is a perspective view of the platen of the present invention;
FIG. 8 is a perspective view of the atomizer head of the present invention;
in the figure: aggregate production facility 1, crushing roller 2, crushing barrel 3, discharge opening 4, kuppe 5, guide housing 6, broken case 7, No. two crushing rollers 8, roll dish 9, buffer slot 10, buffer spring 11, collision pole 12, atomizer 13, air-blower 14, filter screen 15, air exhauster 16, drainage cover 17.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The highway concrete formula comprises the following raw materials in parts by weight:
15-25 parts of Portland cement;
35-45 parts of coarse materials;
25-35 parts of fine materials;
10-15 parts of organosilicon waterproof and oil-resistant agent;
supplementing water to 100 parts;
the coarse material comprises stones, and the stones with the diameter of 10-30MM are selected; the fine materials comprise slag granules, steel slag aggregates, sand and building waste recycled aggregates; the diameter specification of the slag granule is 2-4 MM; the diameter specification of the steel slag aggregate particles is 2-4 MM; the diameter specification of the sand particles is 1-3 MM; the diameter of the waste recycled aggregate particles of the building is between 1 and 5 MM.
Slump test
The raw materials are selected and prepared according to the parts by weight, two groups of experiments are carried out, wherein in one group of experiments, the waste building aggregate is sprayed with the organic silicon waterproof and oil-resistant agent, in the other group of experiments, the waste building aggregate is not treated at all, after the preparation, the road concrete is subjected to slump test, the slump test is observed and evaluated in the two groups of experiments,
comparing experiment one and experiment two, add organosilicon waterproof oil-resistant agent aggregate, piece in the separation aggregate simultaneously, the concrete slump after the preparation is in highway concrete slump scope, simultaneously on adding organosilicon waterproof oil-resistant agent basis, piece in the reseparation aggregate again, its slump is slump scope median, its quality is more, and it has organosilicon waterproof oil-resistant agent not to add, its separation piece can not influence highway concrete quality with not separating the piece, to sum up the gained, separate the piece and add organosilicon waterproof oil-resistant agent aggregate, the highway concrete quality of preparation is more.
In the embodiment of the invention, in order to further improve the preparation quality of the highway concrete, equipment is adopted in the processing technology for improvement, and the concrete steps are as follows:
the first embodiment is as follows:
referring to fig. 1 to 7, a road concrete processing process for processing the above-mentioned road concrete formulation includes the following steps:
s1: screening materials, namely screening the particle diameters of slag granules, steel slag aggregates and sand in the fine materials, and controlling the particle diameters of the slag granules to be 2-4MM, the steel slag aggregates to be 2-4MM and the sand to be 1-3MM for later use;
s2: preparing building waste recycled aggregate, namely selecting air bricks which are waste in construction sites, transferring the air bricks to an aggregate preparation site, conveying the air bricks to aggregate production equipment 1 through a conveyor belt, crushing and finely crushing the air bricks by the aggregate production equipment 1, and spraying an organic silicon waterproof oil-resistant agent after crushing so that a layer of organic silicon waterproof oil-resistant agent film is attached to the surface of the recycled aggregate to reduce the water absorption performance of the recycled aggregate; the aggregate is regenerated by the air bricks, gaps among the stones are filled, the usage amount of sand is reduced, and the paving cost of the concrete road is saved;
s3: preparing the recycled aggregate with the organic silicon waterproof and oil-resistant agent film prepared in the S2 into the highway concrete according to the proportion, and performing a slump test on the highway concrete before paving.
The aggregate production apparatus 1 comprises a primary crushing unit and a secondary crushing unit; the primary crushing unit is positioned above the secondary crushing unit and comprises a first crushing roller 2 and a crushing barrel 3; the first crushing roller 2 is driven by a motor, the first crushing roller 2 is rotationally connected to a crushing cylinder 3 and connected into the crushing cylinder 3, the crushing cylinder 3 is horn-shaped, a plurality of discharge holes 4 are formed in the inner end face of the crushing cylinder 3, a flow guide cover 5 is arranged below the crushing cylinder 3, and the flow guide cover 5 is connected to a secondary crushing unit;
the secondary crushing unit comprises a guide cover 6, a crushing box 7 and a second crushing roller 8; one end of the guide cover 6 is communicated with the air guide cover 5, the other end of the guide cover 6 is communicated with an inlet at the upper end of the crushing box 7, two second crushing rollers 8 are symmetrically installed in the crushing box 7, the second crushing rollers 8 are driven by a motor, and a discharge port at the lower end of the crushing box 7 is erected in an aggregate preparation site through a support; air brick piece rises through the conveyer belt and carries to in broken section of thick bamboo 3, air brick piece is under the broken tooth striking breakage on 2 surfaces of crushing roller, the realization is to the breakage of abandonment air brick, then flow through discharge opening 4, and flow to in broken case 7 along kuppe 5, No. two crushing roller 8 are further extrudeing breakage to it, and No. two crushing roller 8 specification diverse in every broken case 7, make the broken aggregate that prepares the diameter difference, make the aggregate of different diameters fully pack the gap between the stone, improve concrete highway's compactness, strengthen concrete highway's intensity and incorruptibility, and the reuse of abandonment air brick, realize the reasonable reuse of resource, accord with resource recycling policy, reduce the use amount of sand simultaneously, save concrete highway laying cost.
A grinding disc 9 is arranged between the lower end of the first crushing roller 2 and the inner bottom of the crushing barrel 3, a gap is reserved between the lower plate surface of the grinding disc 9 and the inner bottom of the crushing barrel 3, and a plurality of crushing notches are formed in the outer edge of the grinding disc 9; a buffer groove 10 is formed in the grinding disc 9, a buffer spring 11 is arranged in the buffer groove 10, a rotating shaft at the lower end of the first crushing roller 2 vertically penetrates through the buffer groove 10 in a sliding mode, and the rotating shaft is connected into the buffer groove 10 through the buffer spring 11 in a rotating mode; after being crushed by the first crushing roller 2, the air brick falls into the inner bottom of the crushing barrel 3 gradually, the first crushing roller 2 drives the grinding disc 9 to rotate through the rotating shaft, one part of air brick particles fall into the discharge hole 4, the other part of the air brick particles are arranged above the discharge hole 4, at the moment, the grinding disc 9 is cut off and crushed by the crushing notch, the air brick particles are further crushed, the pressure of the second crushing roller 8 on the air brick is reduced, when the aggregate flows out of the crushing box 7, the aggregate can be put into use without screening, the one-time molding effect of the crushed aggregate is improved, and through buffer spring 11, make the pressure plate 9 have mobilizable buffering displacement from top to bottom, prevent that the fragment from blocking between pressure plate 9 and the bottom in crushing section of thick bamboo 3, lead to the driving motor power of a crushing roller 2 increase in the twinkling of an eye, influence driving motor's life.
The rotating shaft penetrates through the lower end face of the crushing barrel 3 in a rotating mode, the lower end face of the rotating shaft is fixedly connected with an impact rod 12, and the impact rod 12 is attached to the lower end face of the crushing barrel 3 to rotate; in discharge opening 4 is arranged in to air fragment of brick part, the lower hole end of discharge opening 4 is arranged in to another part, and the pivot drives collision bar 12 and rotates, and collision bar 12 will stretch out the air brick fragment of discharge opening 4 lower extreme and smash, handles its fragmentation again, reduces No. two crushing rollers 8 to the broken pressure of air brick piece, and the rotation of grinding disc 9 and collision bar 12 drives the shake of air brick piece and drops simultaneously for the clastic whereabouts of air brick piece.
Two vertical rows of atomizing nozzles 13 are arranged at symmetrical positions of a discharge port of the crushing box 7, organic silicon waterproof and oil-resistant agents are sprayed in the atomizing nozzles 13, and the two vertical rows of atomizing nozzles 13 are arranged in a vertically staggered manner;
each guide cover 6 is provided with a dust removal unit; the dust removal unit comprises a blower 14 and a filter screen 15; the air blower 14 is fixedly connected to the upper half position of the guide cover 6, a window is formed in the guide cover 6 on the opposite surface of the air blower 14, the lower edge of the window is lower than the air blower 14, and a filter screen 15 is arranged in the window; the air brick is light and porous, and then is crushed to generate a large amount of micro cracks in the air brick, so that the porosity of the recycled aggregate is high, the water absorption of the recycled aggregate is increased, and when concrete is prepared, the aggregate must absorb moisture from the concrete mixture, so that free water in the concrete mixture is reduced, the fluidity of the concrete is reduced, the slump loss is caused, and the quality of the concrete is influenced; therefore, a layer of organic silicon waterproof oil-resistant agent is attached to the surface of the aggregate, and the organic silicon waterproof oil-resistant agent forms a layer of closed protective film on the surface of the aggregate to block pores and cracks on the surface of the recycled aggregate; meanwhile, after the air brick is crushed, one part of the air brick forms fine fragments, the other part of the air brick is in a fragment shape, the fragments are attached to the surfaces of the fragments, when the air brick is sprayed by the organic silicon waterproof oil-resistant agent, the fragments prevent the organic silicon waterproof oil-resistant agent from adhering to a coated film, when the organic silicon waterproof oil-resistant agent is not dried in time, the fragments fall off the surfaces of the fragments, the parts, which are not coated by the organic silicon waterproof oil-resistant agent, of the fragments are exposed, and when the aggregate is put into use, the shells of the parts, which are not coated by the film, absorb moisture, so that free water in the concrete mixture is reduced; for this purpose, the dust removal unit is arranged to blow and discharge the fragments generated after crushing; the air brick fragments fall into the guide cover 6 from the crushing cylinder 3, the air blower 14 blows air to the air brick fragments, the fragments in the air brick fragments are blown away from the fragments and are discharged out of the guide cover 6, and the fragments are separated; the piece free fall, the horizontal wind of deuterogamying, the piece self is the whereabouts of parabola trace, and the lower limb of window is less than air-blower 14 for the piece effectively discharges guide housing 6 to and be in the restriction of filter screen 15, make piece discharge guide housing 6, the piece still remains in guide housing 6, prevent that the piece from being blown a guide housing 6, cause the unrestrained waste of scattering of piece aggregate.
A dust extraction unit is arranged in the middle of the crushing box 7 and comprises an exhaust fan 16 and a drainage cover 17, one end of the drainage cover 17 is arranged below the space between the two second crushing rollers 8, the other end of the drainage cover 17 is communicated with the exhaust fan 16, and the exhaust fan 16 is fixedly connected to the drainage cover 17; no. two crushing rollers 8 are when to aggregate secondary crushing, also can produce the piece, for this reason through set up on broken case 7 and take out the dirt unit, through air exhauster 16, take out the piece from broken case 7, make the piece that produces in the secondary crushing take out from the piece, thereby waterproof anti-oiling agent of organosilicon covers on the piece completely, prevent that the piece from sheltering from the piece and waterproof anti-oiling agent contact of organosilicon, guarantee waterproof anti-oiling agent coverage rate of fragment aggregate surface organosilicon, thereby reduce the hydroscopicity of aggregate, then improve the quality that the concrete was prepared.
A lower outlet between two adjacent second crushing rollers 8 is arranged in a funnel shape, and the outlet is rectangular; the export sets to hopper-shaped for broken fragment concentrates the whereabouts to the whereabouts of the import department of attached drainage cover 17 improves clastic separation effect in the fragment, reduces the fragment in the fragment and accounts for the ratio, reduces fragment surface piece coverage, improves the waterproof anti-oiling agent coverage of organosilicon.
Example two:
referring to fig. 8, a first comparative example is another embodiment of the present invention, wherein the spraying end of each atomizer 13 is rectangular, and the spraying openings of the atomizer 13 are wavy; the spray nozzles of the atomizing spray heads 13 are arranged in a wavy manner, so that the sprayed organic silicon waterproof and oil-resistant agent is sprayed on the fragments in a wavy manner and in a layered manner, and the two vertically-arranged atomizing spray heads 13 are arranged in an up-and-down staggered manner, so that the fragments are turned upside down under the impact action of the organic silicon waterproof and oil-resistant agent in the falling process of the fragments, the fragments are fully contacted with the organic silicon waterproof and oil-resistant agent, the surface film coverage rate of the fragments is improved, and the water absorption effect of the fragments is reduced.
The working principle is as follows: air bricks are lifted and conveyed into the crushing cylinder 3 through a conveying belt, the air bricks are beaten and crushed by crushing teeth on the surface of the first crushing roller 2, waste air bricks are crushed, then flow through the discharge hole 4 and flow into the crushing boxes 7 along the flow guide cover 5, the second crushing roller 8 further extrudes and crushes the waste air bricks, and the specifications of the second crushing roller 8 in each crushing box 7 are different, so that aggregates with different diameters are crushed and prepared, the aggregates with different diameters fully fill gaps among stones, the compactness of a concrete road is improved, the strength and durability of the concrete road are enhanced, the waste air bricks are recycled, the reasonable recycling of resources is realized, the resource recycling policy is met, the usage amount of sand is reduced, and the laying cost of the concrete road is saved;
after being crushed by the first crushing roller 2, the air brick falls into the inner bottom of the crushing barrel 3 gradually, the first crushing roller 2 drives the grinding disc 9 to rotate through the rotating shaft, one part of air brick particles fall into the discharge hole 4, the other part of the air brick particles are arranged above the discharge hole 4, the grinding disc 9 is cut and crushed by a crushing notch at the moment, the crushing treatment is further performed, the pressure of the second crushing roller 8 on the crushing of the air brick is reduced, when the aggregate flows out of the crushing box 7, the aggregate can be put into use without screening, and the one-time molding effect of the aggregate produced by crushing is improved;
one part of the air brick scraps is arranged in the discharge hole 4, the other part of the air brick scraps is arranged at the lower hole end of the discharge hole 4, the rotating shaft drives the collision rod 12 to rotate, the collision rod 12 breaks the air brick scraps extending out of the lower end of the discharge hole 4, the air brick scraps are broken again, the pressure of the second breaking roller 8 on the air brick scraps is reduced, meanwhile, the grinding disc 9 and the collision rod 12 rotate to drive the air brick scraps to shake and fall, and the falling of the air brick scraps is accelerated;
the air brick is light and porous, and then is crushed to generate a large amount of micro cracks in the air brick, so that the porosity of the recycled aggregate is high, the water absorption of the recycled aggregate is increased, and when concrete is prepared, the aggregate must absorb moisture from the concrete mixture, so that free water in the concrete mixture is reduced, the fluidity of the concrete is reduced, the slump loss is caused, and the quality of the concrete is influenced; therefore, a layer of organic silicon waterproof oil-resistant agent is attached to the surface of the aggregate, and the organic silicon waterproof oil-resistant agent forms a layer of closed protective film on the surface of the aggregate to block pores and cracks on the surface of the recycled aggregate; meanwhile, after the air brick is crushed, one part of the air brick forms fine fragments, the other part of the air brick is in a fragment shape, the fragments are attached to the surfaces of the fragments, when the air brick is sprayed by the organic silicon waterproof oil-resistant agent, the fragments prevent the organic silicon waterproof oil-resistant agent from adhering to a coated film, when the organic silicon waterproof oil-resistant agent is not dried in time, the fragments fall off the surfaces of the fragments, the parts, which are not coated by the organic silicon waterproof oil-resistant agent, of the fragments are exposed, and when the aggregate is put into use, the shells of the parts, which are not coated by the film, absorb moisture, so that free water in the concrete mixture is reduced; for this purpose, the dust removal unit is arranged to blow and discharge the fragments generated after crushing; the air brick fragments fall into the guide cover 6 from the crushing cylinder 3, the air blower 14 blows air to the air brick fragments, the fragments in the air brick fragments are blown away from the fragments and are discharged out of the guide cover 6, and the fragments are separated; the chips fall freely and fall along a parabolic track in cooperation with transverse wind, the lower edge of the window is lower than the blower 14, so that the chips are effectively discharged out of the guide cover 6, the limitation of the filter screen 15 is limited, the chips are discharged out of the guide cover 6, and the chips are still retained in the guide cover 6, so that the chips are prevented from being blown to the guide cover 6, and the waste of the fragments due to the extra-wave scattering of the aggregates is avoided;
the second crushing roller 8 can also generate fragments when the aggregate is secondarily crushed, and therefore, the dust extraction unit is arranged on the crushing box 7, the fragments are extracted from the crushing box 7 through the exhaust fan 16, the fragments generated in secondary crushing are extracted from the fragments, the organic silicon waterproof oil-resistant agent is completely covered on the fragments, the fragments are prevented from shielding the fragments to be in contact with the organic silicon waterproof oil-resistant agent, the organic silicon waterproof oil-resistant agent coverage rate on the surface of the aggregates of the fragments is ensured, the water absorption of the aggregates is reduced, and the quality of concrete preparation is improved;
the export sets to hopper-shaped for broken fragment concentrates the whereabouts to the whereabouts of the import department of attached drainage cover 17 improves clastic separation effect in the fragment, reduces the fragment in the fragment and accounts for the ratio, reduces fragment surface piece coverage, improves the waterproof anti-oiling agent coverage of organosilicon.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A highway concrete formula is characterized in that: the highway concrete is prepared from the following raw materials in parts by weight:
15-25 parts of Portland cement;
35-45 parts of coarse materials;
25-35 parts of fine materials;
10-15 parts of organosilicon waterproof and oil-resistant agent;
and water is added to make up to 100 parts.
2. A road concrete formulation according to claim 1, wherein: the coarse material comprises stones, and the stones with the diameter of 10-30MM are selected; the fine materials comprise slag granules, steel slag aggregates, sand and building waste recycled aggregates; the diameter specification of the slag granule is 2-4 MM; the diameter specification of the steel slag aggregate particles is 2-4 MM; the diameter specification of the sand particles is 1-3 MM; the diameter of the waste recycled aggregate particles of the building is between 1 and 5 MM.
3. A road concrete processing process for processing a road concrete formulation according to any one of claims 1-2, wherein: the processing technology comprises the following steps:
s1: screening materials, namely screening the particle diameters of slag granules, steel slag aggregates and sand in the fine materials, and controlling the particle diameters of the slag granules to be 2-4MM, the steel slag aggregates to be 2-4MM and the sand to be 1-3MM for later use;
s2: preparing a building waste recycled aggregate, selecting waste air bricks on a construction site, transferring the air bricks to an aggregate preparation site, conveying the air bricks to aggregate production equipment (1) through a conveyor belt, crushing and finely crushing the air bricks by the aggregate production equipment (1), and spraying an organic silicon waterproof and oil-resistant agent after crushing so as to attach a layer of organic silicon waterproof and oil-resistant agent film on the surface of the recycled aggregate and reduce the water absorption performance of the recycled aggregate;
s3: preparing the recycled aggregate with the organic silicon waterproof and oil-resistant agent film prepared in the S2 into the highway concrete according to the proportion, and performing a slump test on the highway concrete before paving.
4. The road concrete formula and the processing technology thereof according to claim 3, wherein the formula comprises the following components: the aggregate production plant (1) comprises a primary crushing unit and a secondary crushing unit; the primary crushing unit is positioned above the secondary crushing unit and comprises a first crushing roller (2) and a crushing barrel (3); the first crushing roller (2) is driven by a motor, the first crushing roller (2) is rotatably connected to a crushing cylinder (3) and connected into the crushing cylinder (3), the crushing cylinder (3) is horn-shaped, a plurality of discharge holes (4) are formed in the inner end face of the crushing cylinder (3), a flow guide cover (5) is arranged below the crushing cylinder (3), and the flow guide cover (5) is connected to a secondary crushing unit;
the secondary crushing unit comprises a guide cover (6), a crushing box (7) and a second crushing roller (8); one end of guide housing (6) communicates in kuppe (5), and the other end of guide housing (6) communicates in the upper end entrance of broken case (7), and two No. two crushing rollers (8) are installed to broken case (7) interior symmetry, and No. two crushing rollers (8) are by motor drive, and aggregate preparation place is located through the support frame in broken case (7) lower extreme discharge gate position department.
5. The road concrete formula and the processing technology thereof according to claim 4, wherein the formula comprises the following components: a rolling disc (9) is arranged between the lower end of the first crushing roller (2) and the inner bottom of the crushing barrel (3), a gap is reserved between the lower plate surface of the rolling disc (9) and the inner bottom surface of the crushing barrel (3), and a plurality of crushing notches are formed in the outer edge of the rolling disc (9); the grinding disc (9) is internally provided with a buffer groove (10), a buffer spring (11) is arranged in the buffer groove (10), a lower end rotating shaft of the first crushing roller (2) slides up and down to penetrate through the buffer groove (10), and the first crushing roller is connected in the buffer groove (10) through the buffer spring (11) in a rotating mode.
6. The road concrete formula and the processing technology thereof according to claim 5, wherein the formula comprises the following components: the pivot rotates the lower terminal surface that runs through broken section of thick bamboo (3), and the lower terminal surface rigid coupling of pivot has collision pole (12), and collision pole (12) attached rotates in the lower terminal surface of broken section of thick bamboo (3).
7. The road concrete formula and the processing technology thereof according to claim 4, wherein the formula comprises the following components: two vertical rows of atomizing nozzles (13) are arranged at symmetrical positions of a discharge hole of the crushing box (7), organic silicon waterproof and oil-resistant agents are sprayed in the atomizing nozzles (13), and the two vertical rows of atomizing nozzles (13) are arranged in a vertically staggered mode;
each guide cover (6) is provided with a dust removal unit; the dust removal unit comprises a blower (14) and a filter screen (15); the air blower (14) is fixedly connected to the upper half position of the guide cover (6), a window is formed in the guide cover (6) of the opposite face of the air blower (14), the lower edge of the window is lower than the air blower (14), and a filter screen (15) is arranged in the window.
8. The road concrete formula and the processing technology thereof according to claim 4, wherein the formula comprises the following components: the intermediate position of broken case (7) is equipped with takes out the dirt unit, takes out the dirt unit and includes air exhauster (16) and drainage cover (17), and the below between two No. two crushing rollers (8) is arranged in to the one end of drainage cover (17), and the other end of drainage cover (17) communicates in air exhauster (16), and air exhauster (16) rigid coupling is on drainage cover (17).
9. The road concrete formula and the processing technology thereof according to claim 8, wherein the formula comprises the following components: an outlet below the two adjacent crushing rollers (8) is arranged in a funnel shape, and the outlet is rectangular.
10. The road concrete formula and the processing technology thereof according to claim 9, wherein the formula comprises the following components: the spraying end of each atomizing nozzle (13) is rectangular, and the spraying openings of the atomizing nozzles (13) are wavy.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3052126U (en) * | 1998-03-10 | 1998-09-14 | 人善企業株式会社 | Construction waste treatment equipment |
| JP2003252664A (en) * | 2002-02-27 | 2003-09-10 | Yozo Yamamoto | Aggregate impregnated with waste concrete using waste concrete and its manufacturing method |
| JP2005001895A (en) * | 2003-06-09 | 2005-01-06 | Shimizu Corp | Method of modifying regenerated aggregate |
| JP2006111523A (en) * | 2004-09-15 | 2006-04-27 | Shinozaki Kenzai Kk | Method for manufacturing regenerated aggregate |
| CN101747000A (en) * | 2008-12-18 | 2010-06-23 | 鞍钢建设集团有限公司 | Full-slag pump concrete |
| CN203319869U (en) * | 2013-05-24 | 2013-12-04 | 上海城建物资有限公司 | Recycled aggregate modifying device by spraying |
| CN110066156A (en) * | 2019-05-30 | 2019-07-30 | 扬州惠民再生资源有限公司 | A kind of regeneration concrete for mixing crushing gravel |
| CN110756325A (en) * | 2019-12-10 | 2020-02-07 | 滁州市富邦新型建材有限公司 | Preparation device and method for waste concrete coarse aggregate |
| CN113024176A (en) * | 2019-12-09 | 2021-06-25 | 陈福雯 | Steel slag concrete |
| CN113480217A (en) * | 2021-08-20 | 2021-10-08 | 武汉兴诚海水泥制品有限公司 | Concrete production process for preparing concrete by using construction waste |
-
2022
- 2022-03-31 CN CN202210344453.0A patent/CN114735979B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3052126U (en) * | 1998-03-10 | 1998-09-14 | 人善企業株式会社 | Construction waste treatment equipment |
| JP2003252664A (en) * | 2002-02-27 | 2003-09-10 | Yozo Yamamoto | Aggregate impregnated with waste concrete using waste concrete and its manufacturing method |
| JP2005001895A (en) * | 2003-06-09 | 2005-01-06 | Shimizu Corp | Method of modifying regenerated aggregate |
| JP2006111523A (en) * | 2004-09-15 | 2006-04-27 | Shinozaki Kenzai Kk | Method for manufacturing regenerated aggregate |
| CN101747000A (en) * | 2008-12-18 | 2010-06-23 | 鞍钢建设集团有限公司 | Full-slag pump concrete |
| CN203319869U (en) * | 2013-05-24 | 2013-12-04 | 上海城建物资有限公司 | Recycled aggregate modifying device by spraying |
| CN110066156A (en) * | 2019-05-30 | 2019-07-30 | 扬州惠民再生资源有限公司 | A kind of regeneration concrete for mixing crushing gravel |
| CN113024176A (en) * | 2019-12-09 | 2021-06-25 | 陈福雯 | Steel slag concrete |
| CN110756325A (en) * | 2019-12-10 | 2020-02-07 | 滁州市富邦新型建材有限公司 | Preparation device and method for waste concrete coarse aggregate |
| CN113480217A (en) * | 2021-08-20 | 2021-10-08 | 武汉兴诚海水泥制品有限公司 | Concrete production process for preparing concrete by using construction waste |
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