CN113149573A - Steel slag concrete for reinforcing roadbed and preparation method thereof - Google Patents
Steel slag concrete for reinforcing roadbed and preparation method thereof Download PDFInfo
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- CN113149573A CN113149573A CN202110606616.3A CN202110606616A CN113149573A CN 113149573 A CN113149573 A CN 113149573A CN 202110606616 A CN202110606616 A CN 202110606616A CN 113149573 A CN113149573 A CN 113149573A
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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
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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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- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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Abstract
The invention discloses a steel slag concrete for reinforcing a roadbed and a preparation method thereof, wherein the utilization rate of granulated blast furnace slag powder is improved and the environmental burden is reduced through the effective proportion of fine steel slag and coarse steel slag, and the compressive strength of the steel slag concrete for reinforcing the roadbed is 24.6-25.7MPa according to the determination of GB28635-2012 concrete pavement bricks, the invention also discloses a processing device which repeatedly crushes concrete aggregate through crushing rods at two sides, the whole crushing structure is ingenious, the crushing and mixing effects of the concrete aggregate are effectively improved, the design of a conveying pipeline not only can help the concrete aggregate to be conveyed, but also can be matched with a conveying screw rod to refine and mix the concrete aggregate again, silicate cement and mineral powder enter a secondary treatment chamber through a discharge hole on a stirring pipe, so as to ensure that the silicate cement and the mineral powder are more dispersed, easier to mix.
Description
Technical Field
The invention relates to the technical field of steel slag concrete preparation, in particular to steel slag concrete for reinforcing a roadbed and a preparation method thereof.
Background
As is well known, steel slag is a byproduct in the steel making process, the variety of the steel slag is various, the fluctuation of components and performance is large, the comprehensive utilization rate of the processed steel slag is about 25%, a large amount of steel slag is discarded to form slag hills, the ecological safety of the environment is seriously threatened, and the steel slag increasingly becomes a bottleneck for the survival and development of the steel industry;
the steel slag contains a large amount of available components such as slag steel, calcium oxide, iron, magnesium oxide and the like, so that in order to create economic and environmental benefits for steel enterprises, a proper treatment process is selected and used for reinforcing a roadbed, and the development of the recycling value of the steel slag has a long-term significance; meanwhile, in the existing steel slag concrete manufacturing process, raw materials cannot be fully crushed and mixed only by virtue of crushing of the crushing roller, and cement and mineral powder to be mixed cannot be fully dispersed in a chamber body in the steel slag concrete manufacturing process;
in view of the above technical drawbacks, a solution is proposed.
Disclosure of Invention
The invention aims to provide a steel slag concrete for reinforcing a roadbed and a preparation method thereof, and solves the following technical problems: (1) the technical problems of low compressive strength and high production cost of the steel slag concrete in the prior art are solved; (2) the technical problem that the raw materials cannot be fully crushed and mixed only by crushing of the crushing roller in the manufacturing process of the steel slag concrete in the prior art is solved; (3) solves the technical problem that the cement and the mineral powder to be mixed can not be fully dispersed in the chamber body in the manufacturing process of the steel slag concrete in the prior art.
The purpose of the invention can be realized by the following technical scheme:
the steel slag concrete for reinforcing the roadbed is prepared from the following raw materials in parts by weight: 1-2.5 parts of Portland cement, 12-15 parts of mineral powder, 10-19 parts of fine steel slag, 40-50 parts of coarse steel slag, 0.4-1.2 parts of anhydrite, 0.05-0.32 part of S10 polycarboxylate superplasticizer, 5-10 parts of yellow sand, 8-16 parts of reclaimed materials and 4.5-8.5 parts of water;
the preparation process of the steel slag concrete for reinforcing the roadbed comprises the following steps:
pouring yellow sand, reclaimed materials, fine steel slag and coarse steel slag into a primary treatment chamber of processing equipment, wherein the raw materials enter between two crushing rollers I through the guide of two guide plates, the two crushing rollers crush the raw materials to obtain concrete aggregate, the concrete aggregate enters into a mashing chamber, a driving motor is started, an output shaft of the driving motor drives a belt pulley III to rotate, the two belt pulleys rotate in three phases, the two belt pulleys rotate in opposite directions, the belt pulley I drives a belt pulley II to rotate through the belt pulley I, the belt pulley II drives a rotating roller to rotate, the rotating roller drives two right-angle blocks to rotate, the right-angle blocks are matched with a rotating rod to drive a side shifting plate to repeatedly and horizontally move, the side shifting plate repeatedly smashes the concrete aggregate in the mashing chamber through a mashing rod, the mashed concrete aggregate enters into a connecting shell, silicate cement and mineral powder are respectively added into two feeding chambers, the two material pumping pumps respectively pump portland cement and mineral powder and convey the portland cement and the mineral powder into corresponding rotating pipes, the portland cement and the mineral powder in the two rotating pipes are discharged through discharge holes on stirring pipes, a stirring motor is started, an output shaft of the stirring motor drives a central gear to rotate, the central gear is matched with a side gear to drive the rotating pipes to rotate, the rotating pipes drive the stirring pipes to rotate, anhydrite is added into a material storage chamber, the anhydrite enters a crushing chamber through the material storage chamber, two crushing rollers crush the anhydrite, the crushed anhydrite powder enters a secondary treatment chamber, the two stirring pipes stir and mix the portland cement, the mineral powder and the anhydrite powder to obtain a cementing material, a conveying motor is started, an output shaft of the conveying motor drives a conveying screw to rotate, the conveying screw conveys the concrete aggregate into the secondary treatment chamber, a piston rod of a telescopic cylinder pulls a connecting block, and a translation baffle is pulled to move horizontally, and (3) moving the translation baffle out of the secondary treatment chamber, enabling the concrete aggregate and the cementing material to enter a collection chamber, taking out the concrete aggregate and the cementing material in the collection chamber, adding water and an S10 polycarboxylate superplasticizer, mixing, uniformly stirring for 60-80S, placing in a mold, inserting and tamping for 15-30S, and compacting to obtain the steel slag concrete for reinforcing the roadbed.
Furthermore, the grain size of the fine steel slag is 0.2-1.2mm, the free calcium content in the fine steel slag and the coarse steel slag is less than 6%, and the metal iron content is less than or equal to 2.5%.
Further, the density of the ore powder is not less than 3g/cm3Specific surface area of not less than 360m2The activity index of the catalyst per kg and 28d is not less than 96 percent.
Further, the processing equipment includes primary treatment room, conveying mechanism, secondary treatment room, the primary treatment room sets up in the conveying mechanism top, the inner chamber of primary treatment room rotates and installs two crushing roller one, primary treatment room inner chamber bottom is installed and is smash the garrulous room, smash the rotation of room both sides and be provided with two rotatory rollers, rotatory roller both ends are fixed with two right angle blocks, rotate on the right angle block and install the rotary rod, install the side shift board between two rotary rods, side shift board one side is installed a plurality of and is smashed the pole, smash the pole and slide and run through crushing room lateral wall, conveying mechanism includes pipeline, the connecting shell is installed to pipeline one side, the pipeline internal rotation is provided with conveyor screw, connecting shell and primary treatment room are linked together, pipeline runs through secondary treatment room one side, crushed aggregates mechanism is installed to secondary treatment room one side, the utility model discloses a two-stage treatment room, including top shell, material pump, stirring pipe, connecting block, secondary treatment room, top shell inner chamber, top shell, side frame, connecting block, secondary treatment room lateral wall, top shell installs two feeding chambers at the top, two material pumps are installed to top shell inner chamber, two material pumps and two top shell one-to-one, material pump and top shell are linked together, material pump discharge gate rotates and installs the swivelling joint pipe, install a plurality of stirred tubes on the swivelling joint pipe, stirred tube and swivelling joint pipe are linked together, a plurality of discharge openings have been seted up on the stirred tube, the side frame is installed to the secondary treatment room lateral wall, slidable mounting has the connecting block on the side frame, secondary treatment room one side slides and runs through there is the translation baffle, the connecting block is fixed in translation baffle one side, the secondary treatment room bottom is provided with the collection room.
Furthermore, two sealing covers are rotatably installed at the top of the primary treatment chamber, two guide plates are arranged above the two crushing rollers, and the two guide plates are oppositely arranged and fixed on the inner walls of the two sides of the primary treatment chamber.
Further, install belt pulley two on the rotatory roller, belt pulley two pass through belt drive connection belt pulley one, the first grade treatment room lateral wall is fixed with the set casing, the set casing internal rotation is provided with two belt pulleys three, two belt pulleys three and two belt pulley one-to-ones, belt pulley three is connected with belt pulley coaxial, the set casing internal rotation is provided with belt pulley four, belt pulley four is connected through two transmissions of belt between one of them belt pulley three, and another belt pulley three contacts with the two surface of belt outside, driving motor is installed to the set casing lateral wall, one of them belt pulley of driving motor output shaft is three.
Further, connect shell one side and be fixed with conveyor motor, conveyor motor output shaft conveyor screw, crushed aggregates mechanism includes the storage compartment, the crushed aggregates room is installed to the storage compartment bottom, the crushed aggregates indoor internal rotation is provided with two crushing roller two, the crushed aggregates room is linked together with the secondary treatment room.
Further, agitator motor is installed at top shell top, sun gear is installed to agitator motor output shaft tip, install the side gear on the swinging tube, sun gear and side gear intermeshing, install telescopic cylinder on the side bearer, telescopic cylinder piston rod fixed connection connecting block
The invention has the beneficial effects that:
(1) according to the steel slag concrete for reinforcing the roadbed and the preparation method thereof, the utilization rate of the granulated blast furnace slag powder is improved and the environmental burden is reduced through the effective proportion of the fine steel slag and the coarse steel slag, and the 7d compressive strength of the steel slag concrete for reinforcing the roadbed is 24.6-25.7MPa according to the determination of GB28635-2012 concrete pavement bricks;
(2) pouring yellow sand, reclaimed materials, fine steel slag and coarse steel slag into a primary treatment chamber of processing equipment, wherein the raw materials enter between two crushing rollers I through the guide of two guide plates, the two crushing rollers crush the raw materials to obtain concrete aggregate, the concrete aggregate enters into a mashing chamber, a driving motor is started, an output shaft of the driving motor drives a belt pulley III to rotate, the two belt pulleys rotate in three phases, the two belt pulleys rotate in opposite directions, the belt pulley I drives a belt pulley II to rotate through a belt I, the belt pulley II drives a rotating roller to rotate, the rotating roller drives two right-angle blocks to rotate, the right-angle blocks are matched with a rotating rod to drive a side shifting plate to repeatedly and horizontally move, the side shifting plate repeatedly smashes the concrete aggregate in the mashing chamber through a mashing rod, the mashed concrete aggregate enters into a connecting shell, the structure is arranged, and the processing equipment repeatedly smashes the concrete aggregate through the mashing rods on two sides, the whole mashing structure is ingenious, and the crushing and mixing effects of the concrete aggregate are effectively improved;
(3) adding portland cement and mineral powder into two feeding chambers respectively, pumping the portland cement and the mineral powder by two pumping pumps respectively, conveying the portland cement and the mineral powder into corresponding rotary pipes, discharging the portland cement and the mineral powder in the two rotary pipes through discharge holes on stirring pipes, starting a stirring motor, driving a central gear to rotate by an output shaft of the stirring motor, driving the rotary pipes to rotate by the central gear in a manner of matching with side gears, driving the stirring pipes to rotate by the rotary pipes, adding anhydrite into a storage chamber, allowing the anhydrite to enter a crushing chamber through the storage chamber, crushing anhydrite by two crushing rollers, allowing the crushed anhydrite powder to enter a secondary treatment chamber, stirring and mixing the portland cement, the mineral powder and the anhydrite powder by the two stirring pipes to obtain a gelled material, starting a conveying motor, driving a conveying screw to rotate by an output shaft of the conveying motor, conveying the soil-mixed aggregate into the secondary treatment chamber by the conveying screw, telescopic cylinder piston rod pulling connecting block, connecting block pulling translation baffle horizontal migration, the translation baffle shifts out from in the secondary treatment room, it gets into in the collecting chamber to mix earth aggregate and gelled material, it takes out to mix earth aggregate in the collecting chamber with gelled material, through above structure setting, this processing equipment's stirred tube can guarantee that portland cement and powdered ore get into in the secondary treatment room more fully in the stirring, pipeline's design not only can help mix earth aggregate and carry, can cooperate simultaneously to carry the screw to mix the refining and the mixing that earth aggregate carries out once more, portland cement gets into the secondary treatment indoor with the discharge opening entering secondary treatment on the powdered ore passes through the stirred tube, guarantee portland cement and powdered ore more disperse, change in the mixture.
Drawings
The invention will be further described with reference to the accompanying drawings;
FIG. 1 is a schematic view of the construction of the processing apparatus of the present invention;
FIG. 2 is a schematic view of the configuration of a primary processing chamber of the present invention;
FIG. 3 is a view showing the internal structure of a primary processing chamber according to the present invention;
fig. 4 is an installation view of the tamper bar of the present invention;
FIG. 5 is a view showing the internal structure of the crushing chamber of the present invention;
FIG. 6 is an internal structural view of the fixing case of the present invention;
FIG. 7 is a schematic view of the construction of the transport mechanism of the present invention;
FIG. 8 is a schematic view of the structure of a secondary processing chamber of the present invention;
fig. 9 is a schematic view of the structure of the spitwad mechanism of the present invention;
FIG. 10 is an internal block diagram of the crushing chamber of the present invention;
FIG. 11 is an internal structural view of a secondary processing chamber of the present invention;
FIG. 12 is an internal structural view of a rotary pipe of the present invention;
in the figure: 100. a primary processing chamber; 110. a sealing cover; 120. a guide plate; 130. a first crushing roller; 140. a first belt pulley; 141. a second belt pulley; 142. a rotating roller; 143. a right-angle block; 144. rotating the rod; 145. a side shift plate; 146. a smashing rod; 147. a smashing chamber; 148. a stationary case; 1481. a third belt pulley; 1482. a belt pulley IV; 1483. a drive motor; 200. a conveying mechanism; 210. a delivery conduit; 220. a connecting shell; 230. a conveying motor; 240. a conveying screw; 300. a secondary processing chamber; 310. a translation baffle; 320. a top shell; 321. a material pumping pump; 322. rotating the tube; 323. a side gear; 324. a sun gear; 325. a stirring motor; 326. a stirring pipe; 330. a feeding chamber; 340. a side frame; 341. a telescopic cylinder; 342. connecting blocks; 400. a crushing mechanism; 410. a storage chamber; 420. a crushing chamber; 430. a second crushing roller; 500. a collection chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-12:
example 1:
the steel slag concrete for reinforcing the roadbed is prepared from the following raw materials in parts by weight: 1 part of Portland cement, 12 parts of mineral powder, 10 parts of fine steel slag, 40 parts of coarse steel slag, 0.4 part of anhydrite, 0.05 part of S10 polycarboxylate superplasticizer, 5 parts of yellow sand, 8 parts of reclaimed materials and 4.5 parts of water;
the preparation process of the steel slag concrete for reinforcing the roadbed comprises the following steps:
pouring the yellow sand, the reclaimed materials, the fine steel slag and the coarse steel slag into a primary treatment chamber 100 of processing equipment, wherein the raw materials enter between two crushing rollers 130 through the guide of two guide plates 120, the two crushing rollers 130 crush the raw materials to obtain concrete aggregate, the concrete aggregate enters into a smashing chamber 147, a driving motor 1483 is started, an output shaft of the driving motor 1483 drives belt pulleys 1481 to rotate, the two belt pulleys 1481 rotate oppositely, further the two belt pulleys 140 rotate oppositely, the belt pulley 140 drives a belt pulley 141 to rotate through the belt pulley I, the belt pulley 141 drives a rotating roller 142 to rotate, the rotating roller 142 drives two right-angle blocks 143 to rotate, the right-angle blocks 143 cooperate with a rotating rod 144 to drive a side shifting plate 145 to repeatedly move horizontally, the side shifting plate 145 repeatedly smashes the concrete aggregate in the smashing chamber 147 through the smashing rod 146, and the smashed concrete aggregate enters into a connecting shell 220, adding portland cement and mineral powder into two feeding chambers 330 respectively, pumping the portland cement and the mineral powder by two pumping pumps 321 respectively, conveying the portland cement and the mineral powder into corresponding rotary pipes 322, discharging the portland cement and the mineral powder in the two rotary pipes 322 through discharge holes on stirring pipes 326, starting stirring motors 325, driving central gears 324 to rotate by output shafts of the stirring motors 325, driving the rotary pipes 322 to rotate by the central gears 324 in cooperation with side gears 323, driving the stirring pipes 326 to rotate by the rotary pipes 322, adding the anhydrite into a storage chamber 410, allowing the anhydrite to enter a crushing chamber 420 through the storage chamber 410, crushing the anhydrite by two crushing rollers 430, allowing the crushed anhydrite powder to enter a secondary treatment chamber 300, stirring and mixing the portland cement, the mineral powder and the anhydrite powder by the two stirring pipes 326 to obtain a gelled material, starting conveying motors 230, driving conveying screws 240 to rotate by output shafts of the conveying motors 230, conveying the concrete aggregate into the secondary treatment chamber 300 by the conveying screw 240, pulling the connecting block 342 by the piston rod of the telescopic cylinder 341, pulling the translation baffle 310 by the connecting block 342 to horizontally move, moving the translation baffle 310 out of the secondary treatment chamber 300, feeding the concrete aggregate and the gelled material into the collection chamber 500, taking out the concrete aggregate and the gelled material in the collection chamber 500, adding water and an S10 polycarboxylic acid water reducing agent to mix, uniformly stirring for 60S, placing into a mold to carry out tamping for 15S, and compacting to obtain the steel slag concrete for reinforcing the roadbed.
Specifically, the grain size of the fine steel slag is 0.2mm, the free calcium content in the fine steel slag and the coarse steel slag is less than 6%, and the metal iron content is less than or equal to 2.5%. The density of the mineral powder is not less than 3g/cm3Specific surface area of not less than 360m2The activity index of the catalyst per kg and 28d is not less than 96 percent.
The compressive strength of the steel slag concrete 7d used for reinforcing the roadbed in the embodiment 1 is 24.6 MPa.
Example 2:
the steel slag concrete for reinforcing the roadbed is prepared from the following raw materials in parts by weight: 2.5 parts of Portland cement, 15 parts of mineral powder, 19 parts of fine steel slag, 50 parts of coarse steel slag, 1.2 parts of anhydrite, 0.32 part of S10 polycarboxylate superplasticizer, 10 parts of yellow sand, 16 parts of reclaimed materials and 8.5 parts of water;
the preparation process of the steel slag concrete for reinforcing the roadbed comprises the following steps:
pouring the yellow sand, the reclaimed materials, the fine steel slag and the coarse steel slag into a primary treatment chamber 100 of processing equipment, wherein the raw materials enter between two crushing rollers 130 through the guide of two guide plates 120, the two crushing rollers 130 crush the raw materials to obtain concrete aggregate, the concrete aggregate enters into a smashing chamber 147, a driving motor 1483 is started, an output shaft of the driving motor 1483 drives belt pulleys 1481 to rotate, the two belt pulleys 1481 rotate oppositely, further the two belt pulleys 140 rotate oppositely, the belt pulley 140 drives a belt pulley 141 to rotate through the belt pulley I, the belt pulley 141 drives a rotating roller 142 to rotate, the rotating roller 142 drives two right-angle blocks 143 to rotate, the right-angle blocks 143 cooperate with a rotating rod 144 to drive a side shifting plate 145 to repeatedly move horizontally, the side shifting plate 145 repeatedly smashes the concrete aggregate in the smashing chamber 147 through the smashing rod 146, and the smashed concrete aggregate enters into a connecting shell 220, adding portland cement and mineral powder into two feeding chambers 330 respectively, pumping the portland cement and the mineral powder by two pumping pumps 321 respectively, conveying the portland cement and the mineral powder into corresponding rotary pipes 322, discharging the portland cement and the mineral powder in the two rotary pipes 322 through discharge holes on stirring pipes 326, starting stirring motors 325, driving central gears 324 to rotate by output shafts of the stirring motors 325, driving the rotary pipes 322 to rotate by the central gears 324 in cooperation with side gears 323, driving the stirring pipes 326 to rotate by the rotary pipes 322, adding the anhydrite into a storage chamber 410, allowing the anhydrite to enter a crushing chamber 420 through the storage chamber 410, crushing the anhydrite by two crushing rollers 430, allowing the crushed anhydrite powder to enter a secondary treatment chamber 300, stirring and mixing the portland cement, the mineral powder and the anhydrite powder by the two stirring pipes 326 to obtain a gelled material, starting conveying motors 230, driving conveying screws 240 to rotate by output shafts of the conveying motors 230, conveying the concrete aggregate into the secondary treatment chamber 300 by the conveying screw 240, pulling the connecting block 342 by the piston rod of the telescopic cylinder 341, pulling the translation baffle 310 to horizontally move by the connecting block 342, moving the translation baffle 310 out of the secondary treatment chamber 300, feeding the concrete aggregate and the gelled material into the collection chamber 500, taking out the concrete aggregate and the gelled material in the collection chamber 500, adding water and an S10 polycarboxylic acid water reducing agent to mix, uniformly stirring for 80S, placing into a mold, inserting and tamping for 30S, and compacting to obtain the steel slag concrete for reinforcing the roadbed.
The grain size of the fine steel slag is 1.2mm, the free calcium content in the fine steel slag and the coarse steel slag is less than 6 percent, and the metal iron content is less than or equal to 2.5 percent. The density of the mineral powder is not less than 3g/cm3Specific surface area of not less than 360m2The activity index of the catalyst per kg and 28d is not less than 96 percent.
The compressive strength of the steel slag concrete 7d used for reinforcing the roadbed in the embodiment 2 is 25.7 MPa.
The processing equipment comprises a primary processing chamber 100, a conveying mechanism 200 and a secondary processing chamber 300, wherein the primary processing chamber 100 is arranged above the conveying mechanism 200, two crushing rollers 130 are rotatably arranged in the inner cavity of the primary processing chamber 100, a smashing chamber 147 is arranged at the bottom of the inner cavity of the primary processing chamber 100, two rotating rollers 142 are rotatably arranged on two sides of the smashing chamber 147, two right-angle blocks 143 are fixed at two ends of each rotating roller 142, rotating rods 144 are rotatably arranged on the right-angle blocks 143, a side shifting plate 145 is arranged between the two rotating rods 144, a plurality of smashing rods 146 are arranged on one side of the side shifting plate 145, the smashing rods 146 slidably penetrate through the side wall of the smashing chamber 147, the conveying mechanism 200 comprises a conveying pipeline 210, a connecting shell 220 is arranged on one side of the conveying pipeline 210, a conveying screw 240 is rotatably arranged in the conveying pipeline 210, the connecting shell 220 is communicated with the primary processing chamber 100, the conveying pipeline 210 penetrates through one side of the secondary processing chamber 300, and a crushing mechanism 400 is arranged on one side of the secondary processing chamber 300, top shell 320 is installed at secondary treatment room 300 outer wall top, two feeding rooms 330 are installed at top shell 320 top, two material pump 321 are installed to top shell 320 inner chamber, two material pump 321 and two top shell 320 one-to-one, material pump 321 is linked together with top shell 320, material pump 321 discharge gate rotates and installs rotatory pipe 322, install a plurality of stirred tubes 326 on the rotatory pipe 322, stirred tubes 326 is linked together with rotatory pipe 322, a plurality of discharge openings have been seted up on stirred tubes 326, through above structure setting, guarantee that portland cement and powdered ore can fully mix in secondary treatment room 300, stirred tubes 326 can guarantee that portland cement and powdered ore get into secondary treatment room 300 can be more abundant in the stirring.
Two sealing covers 110 are rotatably mounted at the top of the primary treatment chamber 100, two guide plates 120 are arranged above the first crushing rollers 130, the two guide plates 120 are oppositely arranged and fixed on the inner walls of two sides of the primary treatment chamber 100, and the space of the primary treatment chamber 100 during working can be ensured to be closed by the design of the two sealing covers 110.
The rotating roller 142 is provided with a second belt pulley 141, the second belt pulley 141 is connected with a first belt pulley 140 through belt transmission, the outer side wall of the primary treatment chamber 100 is fixedly provided with a fixed shell 148, two third belt pulleys 1481 are rotationally arranged in the fixed shell 148, the two third belt pulleys 1481 are in one-to-one correspondence with the two first belt pulleys 140, the third belt pulley 1481 is coaxially connected with the first belt pulley 140, the fourth belt pulley 1482 is rotationally arranged in the fixed shell 148, the fourth belt pulley 1482 is in transmission connection with one of the third belt pulleys 1481 through the second belt, the other third belt pulley 1481 is in contact with the outer surface of the belt, the outer side wall of the fixed shell 148 is provided with a driving motor 1483, an output shaft of the driving motor 1483 is connected with one of the third belt pulleys 1481, and through the structural arrangement, the crushed yellow sand, reclaimed materials, fine steel slag and coarse steel slag can be crushed efficiently crushed, and the yellow sand, the regenerated materials and the fine steel slag can be effectively improved, Mixing effect of the coarse steel slag.
One side of the connecting shell 220 is fixed with a conveying motor 230, an output shaft of the conveying motor 230 is connected with a conveying screw 240, the crushing mechanism 400 comprises a material storage chamber 410, a crushing chamber 420 is installed at the bottom of the material storage chamber 410, two crushing rollers 430 are rotatably arranged in the crushing chamber 420, and the crushing chamber 420 is communicated with the secondary treatment chamber 300.
The top of the top shell 320 is provided with a stirring motor 325, the end part of an output shaft of the stirring motor 325 is provided with a central gear 324, the rotating pipe 322 is provided with a side gear 323, the central gear 324 is meshed with the side gear 323, the side frame 340 is provided with a telescopic cylinder 341, a piston rod of the telescopic cylinder 341 is fixedly connected with a connecting block 342, and the translation baffle plate 310 can conveniently and automatically enter and exit the secondary treatment chamber 300 through the arrangement of the telescopic cylinder 341.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the present invention is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (9)
1. The steel slag concrete for reinforcing the roadbed is characterized by being prepared from the following raw materials in parts by weight: 1-2.5 parts of Portland cement, 12-15 parts of mineral powder, 10-19 parts of fine steel slag, 40-50 parts of coarse steel slag, 0.4-1.2 parts of anhydrite, 0.05-0.32 part of S10 polycarboxylate superplasticizer, 5-10 parts of yellow sand, 8-16 parts of reclaimed materials and 4.5-8.5 parts of water;
the preparation process of the steel slag concrete for reinforcing the roadbed comprises the following steps:
pouring yellow sand, reclaimed materials, fine steel slag and coarse steel slag into a primary treatment chamber (100) of processing equipment, leading the raw materials into a space between two crushing rollers (130) through two guide plates (120), crushing the raw materials by the two crushing rollers (130) to obtain concrete aggregate, feeding the concrete aggregate into a crushing chamber (147), starting a driving motor (1483), driving a belt pulley III (1481) to rotate by an output shaft of the driving motor (1483), oppositely rotating the two belt pulleys III (1481), further oppositely rotating the two belt pulleys (140), driving a belt pulley II (141) to rotate by the belt pulley I (140), driving a rotating roller (142) to rotate by the belt pulley II (141), driving two right-angle blocks (143) to rotate by the rotating roller (142), driving a side shifting plate (145) to repeatedly and horizontally move by the right-angle blocks (143) in cooperation with a rotating rod (144), the side shifting plate (145) repeatedly smashes the concrete aggregate in the smashing chamber (147) through the smashing rod (146), the smashed concrete aggregate enters the connecting shell (220), the portland cement and the mineral powder are respectively added into the two feeding chambers (330), the two pumping pumps (321) respectively pump the portland cement and the mineral powder and convey the portland cement and the mineral powder into the corresponding rotating pipes (322), the portland cement and the mineral powder in the two rotating pipes (322) are discharged through discharge holes on the stirring pipes (326), the stirring motor (325) is started, an output shaft of the stirring motor (325) drives the central gear (324) to rotate, the central gear (324) is matched with the side gear (323) to drive the rotating pipes (322) to rotate, the rotating pipes (322) drive the stirring pipes (326) to rotate, the anhydrite is added into the storage chamber (410), the anhydrite enters the crushing chamber (420) through the storage chamber (410), and the anhydrite is smashed by the two smashing rollers (430), the crushed anhydrite powder enters a secondary treatment chamber (300), portland cement, mineral powder and anhydrite powder are stirred and mixed by two stirring pipes (326) to obtain a gelled material, a conveying motor (230) is started, an output shaft of the conveying motor (230) drives a conveying screw rod (240) to rotate, the concrete aggregate is conveyed into the secondary treatment chamber (300) by the conveying screw rod (240), a piston rod of a telescopic cylinder (341) pulls a connecting block (342), the connecting block (342) pulls a translation baffle plate (310) to move horizontally, the translation baffle plate (310) is moved out of the secondary treatment chamber (300), the concrete aggregate and the gelled material enter a collection chamber (500), and the concrete aggregate and the gelled material in the collection chamber (500) are taken out, and adding water and an S10 polycarboxylate superplasticizer, mixing, uniformly stirring for 60-80S, placing into a mold, inserting and tamping for 15-30S, and compacting to obtain the steel slag concrete for reinforcing the roadbed.
2. The steel slag concrete for reinforcing the roadbed according to claim 1, wherein the grain size of the fine steel slag is 0.2-1.2mm, the free calcium content in the fine steel slag and the coarse steel slag is less than 6%, and the metal iron content is less than or equal to 2.5%.
3. The steel slag concrete for reinforcing roadbed according to claim 1, wherein the density of the mineral powder is not less than 3g/cm3Specific surface area of not less than 360m2The activity index of the catalyst per kg and 28d is not less than 96 percent.
4. A preparation method of steel slag concrete for reinforcing a roadbed is characterized by comprising the following steps:
pouring yellow sand, reclaimed materials, fine steel slag and coarse steel slag into a primary treatment chamber (100) of processing equipment, leading the raw materials into a space between two crushing rollers (130) through two guide plates (120), crushing the raw materials by the two crushing rollers (130) to obtain concrete aggregate, feeding the concrete aggregate into a crushing chamber (147), starting a driving motor (1483), driving a belt pulley III (1481) to rotate by an output shaft of the driving motor (1483), oppositely rotating the two belt pulleys III (1481), further oppositely rotating the two belt pulleys (140), driving a belt pulley II (141) to rotate by the belt pulley I (140), driving a rotating roller (142) to rotate by the belt pulley II (141), driving two right-angle blocks (143) to rotate by the rotating roller (142), driving a side shifting plate (145) to repeatedly and horizontally move by the right-angle blocks (143) in cooperation with a rotating rod (144), the side shifting plate (145) repeatedly smashes the concrete aggregate in the smashing chamber (147) through the smashing rod (146), the smashed concrete aggregate enters the connecting shell (220), the portland cement and the mineral powder are respectively added into the two feeding chambers (330), the two pumping pumps (321) respectively pump the portland cement and the mineral powder and convey the portland cement and the mineral powder into the corresponding rotating pipes (322), the portland cement and the mineral powder in the two rotating pipes (322) are discharged through discharge holes on the stirring pipes (326), the stirring motor (325) is started, an output shaft of the stirring motor (325) drives the central gear (324) to rotate, the central gear (324) is matched with the side gear (323) to drive the rotating pipes (322) to rotate, the rotating pipes (322) drive the stirring pipes (326) to rotate, the anhydrite is added into the storage chamber (410), the anhydrite enters the crushing chamber (420) through the storage chamber (410), and the anhydrite is smashed by the two smashing rollers (430), the crushed anhydrite powder enters a secondary treatment chamber (300), portland cement, mineral powder and anhydrite powder are stirred and mixed by two stirring pipes (326) to obtain a gelled material, a conveying motor (230) is started, an output shaft of the conveying motor (230) drives a conveying screw rod (240) to rotate, the concrete aggregate is conveyed into the secondary treatment chamber (300) by the conveying screw rod (240), a piston rod of a telescopic cylinder (341) pulls a connecting block (342), the connecting block (342) pulls a translation baffle plate (310) to move horizontally, the translation baffle plate (310) is moved out of the secondary treatment chamber (300), the concrete aggregate and the gelled material enter a collection chamber (500), and the concrete aggregate and the gelled material in the collection chamber (500) are taken out, and adding water and an S10 polycarboxylate superplasticizer, mixing, uniformly stirring for 60-80S, placing into a mold, inserting and tamping for 15-30S, and compacting to obtain the steel slag concrete for reinforcing the roadbed.
5. The preparation method of the steel slag concrete for reinforcing the roadbed according to claim 4, wherein the processing equipment comprises a primary processing chamber (100), a conveying mechanism (200) and a secondary processing chamber (300), the primary processing chamber (100) is arranged above the conveying mechanism (200), two crushing roller I (130) are rotatably arranged in the inner cavity of the primary processing chamber (100), a smashing chamber (147) is arranged at the bottom of the inner cavity of the primary processing chamber (100), two rotating rollers (142) are rotatably arranged at two sides of the smashing chamber (147), two right-angle blocks (143) are fixed at two ends of each rotating roller (142), a rotating rod (144) is rotatably arranged on each right-angle block (143), a side shifting plate (145) is arranged between the two rotating rods (144), a plurality of smashing rods (146) are arranged at one side of the side shifting plate (145), and the smashing rods (146) slide to penetrate through the side wall of the smashing chamber (147), the conveying mechanism (200) comprises a conveying pipeline (210), a connecting shell (220) is installed on one side of the conveying pipeline (210), a conveying screw rod (240) is arranged in the conveying pipeline (210) in a rotating mode, the connecting shell (220) is communicated with a primary treatment chamber (100), the conveying pipeline (210) penetrates through one side of a secondary treatment chamber (300), a crushing mechanism (400) is installed on one side of the secondary treatment chamber (300), a top shell (320) is installed at the top of the outer wall of the secondary treatment chamber (300), two feeding chambers (330) are installed at the top of the top shell (320), two pumping pumps (321) are installed in the inner cavity of the top shell (320), the two pumping pumps (321) correspond to the two top shells (320) one by one, the pumping pumps (321) are communicated with the top shell (320), a discharge hole of each pumping pump (321) is rotatably installed with a rotating pipe (322), and a plurality of stirring pipes (326) are installed on each rotating pipe (322), stirring pipe (326) are linked together with rotating pipe (322), a plurality of discharge openings have been seted up on stirring pipe (326), side bearer (340) are installed to secondary treatment room (300) lateral wall, slidable mounting has connecting block (342) on side bearer (340), secondary treatment room (300) one side slides and runs through there is translation baffle (310), connecting block (342) are fixed in translation baffle (310) one side, secondary treatment room (300) bottom is provided with collects room (500).
6. The method for preparing a steel slag concrete for reinforcing a roadbed according to claim 5, wherein two sealing covers (110) are rotatably installed at the top of the primary treatment chamber (100), two guide plates (120) are arranged above the two crushing rollers (130), and the two guide plates (120) are oppositely arranged and fixed on the inner walls of the two sides of the primary treatment chamber (100).
7. The method for preparing the steel slag concrete for reinforcing the roadbed according to claim 5, wherein a second belt pulley (141) is installed on the rotating roller (142), the second belt pulley (141) is connected with a first belt pulley (140) through a first belt pulley in a transmission way, a fixed shell (148) is fixed on the outer side wall of the primary treatment chamber (100), two third belt pulleys (1481) are rotationally arranged in the fixed shell (148), the two third belt pulleys (1481) correspond to the two first belt pulleys (140) in a one-to-one way, the third belt pulley (1481) is coaxially connected with the first belt pulley (140), a fourth belt pulley (1482) is rotationally arranged in the fixed shell (148), the fourth belt pulley (1482) is in a transmission way with one of the third belt pulleys (1481) through the second belt, the third belt pulley (1481) is in contact with the outer surface of the belt, and a driving motor (1483) is installed on the outer side wall of the fixed shell (148), an output shaft of the driving motor (1483) is connected with one of the third belt pulleys (1481).
8. The preparation method of the steel slag concrete for reinforcing the roadbed as claimed in claim 5, wherein a conveying motor (230) is fixed on one side of the connecting shell (220), an output shaft of the conveying motor (230) is connected with a conveying screw (240), the crushing mechanism (400) comprises a material storage chamber (410), a crushing chamber (420) is installed at the bottom of the material storage chamber (410), two crushing rollers (430) are rotatably arranged in the crushing chamber (420), and the crushing chamber (420) is communicated with the secondary treatment chamber (300).
9. The method for preparing the steel slag concrete for reinforcing the roadbed according to claim 5, wherein a stirring motor (325) is installed at the top of the top shell (320), a central gear (324) is installed at the end part of an output shaft of the stirring motor (325), a side gear (323) is installed on the rotating pipe (322), the central gear (324) is meshed with the side gear (323), a telescopic cylinder (341) is installed on the side frame (340), and a piston rod of the telescopic cylinder (341) is fixedly connected with a connecting block (342).
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| CN202110606616.3A CN113149573A (en) | 2021-05-27 | 2021-05-27 | Steel slag concrete for reinforcing roadbed and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110606616.3A CN113149573A (en) | 2021-05-27 | 2021-05-27 | Steel slag concrete for reinforcing roadbed and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180118622A1 (en) * | 2013-06-25 | 2018-05-03 | Carboncure Technologies Inc. | Methods and compositions for concrete production |
| CN112390594A (en) * | 2020-12-01 | 2021-02-23 | 中冶宝钢技术服务有限公司 | Mineral powder-based steel slag dense concrete |
| CN112549293A (en) * | 2020-12-25 | 2021-03-26 | 罗洪湖 | Preparation method and processing equipment of recycled fine aggregate high-strength self-compacting concrete |
| CN214347065U (en) * | 2020-12-24 | 2021-10-08 | 甘肃建筑职业技术学院 | An automatic pretreatment device for recycled aggregates |
-
2021
- 2021-05-27 CN CN202110606616.3A patent/CN113149573A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180118622A1 (en) * | 2013-06-25 | 2018-05-03 | Carboncure Technologies Inc. | Methods and compositions for concrete production |
| CN112390594A (en) * | 2020-12-01 | 2021-02-23 | 中冶宝钢技术服务有限公司 | Mineral powder-based steel slag dense concrete |
| CN214347065U (en) * | 2020-12-24 | 2021-10-08 | 甘肃建筑职业技术学院 | An automatic pretreatment device for recycled aggregates |
| CN112549293A (en) * | 2020-12-25 | 2021-03-26 | 罗洪湖 | Preparation method and processing equipment of recycled fine aggregate high-strength self-compacting concrete |
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Application publication date: 20210723 |