CN115648428A - Concrete stirring device based on slag activity excitant and preparation method - Google Patents
Concrete stirring device based on slag activity excitant and preparation method Download PDFInfo
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- CN115648428A CN115648428A CN202211724993.8A CN202211724993A CN115648428A CN 115648428 A CN115648428 A CN 115648428A CN 202211724993 A CN202211724993 A CN 202211724993A CN 115648428 A CN115648428 A CN 115648428A
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- 238000002360 preparation method Methods 0.000 title abstract description 14
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Abstract
The invention discloses a stirring device and a preparation method of concrete based on a slag activity excitant, and relates to the technical field of concrete preparation. This agitating unit and preparation method of concrete based on slay activity excitant for through the agitating unit who sets up, make between two dwangs drive the stirring rake for the antiport, make the mixture between the raw materials more even, the performance of the concrete that makes is better, and the slope of scraper blade is scraped off to the agitator tank inner wall simultaneously, thereby avoids inner wall raw materials to accumulate.
Description
Technical Field
The invention relates to the technical field of concrete preparation, in particular to a stirring device and a preparation method of concrete based on a slag activity excitant.
Background
When concrete based on the slag activity excitant is prepared, the granulated blast furnace slag is used as a main raw material, special cement clinker and anhydrous gypsum are used as novel low-carbon and waste-utilizing cementing materials of the alkali-free excitant, the granulated blast furnace slag, the fly ash and the excitant are mixed and stirred, and the existing granulated blast furnace slag is used as a base to prepare the slag sulphoaluminate cement under the action of the slag excitant.
In the preparation process of the concrete of the slag activity excitant, the granulated blast furnace slag, the fly ash and the slag excitant are required to be added into a stirring device together for mixing, and the alkali-activated cementitious material concrete is prepared after uniform mixing.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a concrete stirring device based on a slag activity excitant and a preparation method thereof, which solve the technical problems mentioned in the background art.
In order to achieve the purpose, the invention is realized by the following technical scheme: concrete agitating unit based on slay activity excitant, including frame and fixed mounting at the agitator tank of frame top, the inside of agitator tank is provided with the stirring subassembly that is used for stirring the raw materials, the drive assembly that is used for driving the stirring subassembly and stirs is installed to top one side of frame, the one end of agitator tank is provided with the conveyer that is used for transporting the raw materials, conveyer is close to stirring subassembly one end and is provided with the sieving mechanism.
Preferably, one end of the top of the stirring box is provided with an observation window, the other end of the stirring box is provided with a feeding hole, the bottom of the stirring box is provided with a discharging hole, and the position of the discharging hole is provided with an opening and closing assembly for sealing.
Preferably, the subassembly that opens and shuts includes the fixing base of fixed mounting at agitator tank bottom both ends, the surface of fixing base rotates and is connected with the pivot, the medial extremity fixedly connected with connecting plate of pivot, two fixedly connected with closing plate between the connecting plate, and the size and the mutual adaptation of discharge gate of closing plate, the other end fixedly connected with servo motor of pivot.
Preferably, the drive assembly includes fixed mounting at the driving motor and the speed reducer at frame top, the first belt pulley of driving motor's output fixedly connected with, the output fixedly connected with second belt pulley of speed reducer, and first belt pulley carries out the transmission through the belt with the second belt pulley and is connected, two driving gears of the output fixedly connected with of speed reducer, and the looks remote site intermeshing of two driving gears, two the meshing of top one side of driving gear is connected with driven gear, driven gear's the agitator tank one end fixedly connected with connecting rod that is close to, the other end of connecting rod runs through the agitator tank and extends to the inner chamber, the connecting rod passes through the bearing rotation with the agitator tank and is connected, and the outer wall fixedly connected with drive wheel of connecting rod.
Preferably, the stirring subassembly includes that two rotate and install the dwang at the agitator tank inner chamber, two dwang one end and two connecting rod one end fixed connection, the outer wall equidistance fixedly connected with stirring rake of dwang, the other end fixedly connected with scraper blade of stirring rake, and the outer wall of scraper blade and agitator tank inner wall laminate each other.
Preferably, the conveyer includes the backup pad of fixed mounting in frame one end, the medial extremity fixedly connected with carriage of backup pad, the both ends of carriage are rotated and are connected with the axis of rotation, the outer wall transmission of axis of rotation is connected with the conveyer belt, the box is placed to the outer wall equidistance fixedly connected with of conveyer belt, the bottom the one end of axis of rotation runs through backup pad and fixedly connected with drive wheel, and the drive wheel carries out the transmission through drive belt and the drive wheel on the connecting rod and is connected.
Preferably, the sieving mechanism includes the link of fixed mounting at the carriage outer wall, the upper and lower end difference fixedly connected with stock and quarter butt of link both sides, the equal fixedly connected with spring of the other end of stock and quarter butt, the other end fixedly connected with connecting rod of spring is located the link top the first screening board of connecting rod top fixedly connected with is located the link below connecting rod bottom fixedly connected with second screening board, the equal fixed mounting in both ends of second screening board and first screening board has vibrating motor.
The invention also discloses a method for preparing the concrete based on the slag activity excitant by using the concrete stirring device based on the slag activity excitant, which comprises the following steps:
step one, taking granulated blast furnace slag as a main raw material, adding the granulated blast furnace slag into a conveyer, conveying the granulated blast furnace slag into a screening device through the conveyer for screening treatment, and feeding the granulated blast furnace slag screened by the screening device into a stirring box;
and step two, adding the fly ash and the exciting agent in different proportion groups into the stirring box, stirring and mixing, wherein the mixing amount of the exciting agent is 15-20%, and the mixing amount of the fly ash is 17.5-35%, and preparing the slag sulphoaluminate cement.
Advantageous effects
The invention provides a stirring device for concrete based on a slag activity excitant and a preparation method thereof. Compared with the prior art, the method has the following beneficial effects:
(1) This agitating unit and preparation method of concrete based on slay activity excitant through the sieving mechanism who sets up, screens the raw materials, makes qualified raw materials fall from the sieve mesh hole site, and the second screening board is further screened the raw materials that falls simultaneously, and the more careful of screening need not artifical manual the screening, has made things convenient for staff's use, has saved the labour greatly, the effectual efficiency of construction that has improved improves screening efficiency.
(2) This agitating unit and preparation method of concrete based on slay activity excitant drives the axis of rotation through drive assembly and rotates for the conveyer belt drives and places the box and be located the raw materials of placing the box and carry, carries with the ascending high efficiency of ensureing raw materials, removes the in-process along with placing the box, and the raw materials falls into and carries out the screening process to the sieving mechanism, realizes the automatic feed to the sieving mechanism.
(3) This agitating unit and preparation method of concrete based on slay activity excitant drives two dwangs through two connecting rods and rotates towards reverse direction, and the dwang drives the stirring rake and rotates with the scraper blade, drives through two dwangs and is the antiport between the stirring rake for mix more evenly between the raw materials, the performance of the concrete that makes is better, and the slope of scraper blade strikes off the agitator tank inner wall simultaneously, thereby avoids inner wall raw materials accumulation.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic view of a driving assembly according to the present invention;
FIG. 3 is a schematic view of the stirring assembly of the present invention;
FIG. 4 is a schematic view of the structure of the opening/closing assembly of the present invention;
FIG. 5 is a schematic view of the structure of the transportation device of the present invention;
FIG. 6 is a schematic view of the structure of the screening apparatus of the present invention.
In the figure: 1. a frame; 2. a stirring box; 3. a drive assembly; 4. a stirring assembly; 5. an opening and closing assembly; 6. a transportation device; 7. a screening device; 201. an observation window; 202. a feed inlet; 203. a discharge port; 301. a drive motor; 302. a first pulley; 303. a speed reducer; 304. a second pulley; 305. a driving gear; 306. a driven gear; 307. a connecting rod; 401. rotating the rod; 402. a stirring paddle; 403. a squeegee; 501. a fixed seat; 502. a rotating shaft; 503. a connecting plate; 504. a sealing plate; 505. a servo motor; 601. a support plate; 602. a rotating shaft; 603. a conveyor belt; 604. placing the box; 605. a driving wheel; 606. a conveying frame; 701. a connecting frame; 702. a long rod; 703. a short bar; 704. a spring; 705. a connecting rod; 706. a first screening deck; 707. a second screening plate; 708. a vibration motor.
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 specification, 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.
Referring to fig. 1-6, the present invention provides a technical solution: including frame 1 and fixed mounting at the agitator tank 2 at 1 top in the frame, the inside of agitator tank 2 is provided with the stirring subassembly 4 that is used for stirring the raw materials, and the drive assembly 3 that is used for driving stirring subassembly 4 to stir is installed to top one side of frame 1, and the one end of agitator tank 2 is provided with the conveyer 6 that is used for transporting the raw materials, and conveyer 6 is close to 4 one ends of stirring subassembly and is provided with sieving mechanism 7.
As shown in fig. 3 and 4, an observation window 201 is arranged at one end of the top of the stirring box 2, a feed port 202 is arranged at the other end of the stirring box 2, a discharge port 203 is arranged at the bottom of the stirring box 2, and an opening and closing component 5 for sealing is arranged at the position of the discharge port 203.
As shown in fig. 4, the opening and closing assembly 5 includes fixing bases 501 fixedly installed at two ends of the bottom of the stirring box 2, a rotating shaft 502 is rotatably connected to the surface of the fixing base 501, connecting plates 503 are fixedly connected to inner ends of the rotating shaft 502, a sealing plate 504 is fixedly connected between the two connecting plates 503, the size of the sealing plate 504 is matched with that of the discharge port 203, and a servo motor 505 is fixedly connected to the other end of the rotating shaft 502.
As shown in fig. 2, the driving assembly 3 includes a driving motor 301 and a speed reducer 303 fixedly mounted on the top of the frame 1, an output end of the driving motor 301 is fixedly connected with a first belt pulley 302, an output end of the speed reducer 303 is fixedly connected with a second belt pulley 304, and the first belt pulley 302 and the second belt pulley 304 are in transmission connection through a belt (note that the belt is not shown in the belt), an output end of the speed reducer 303 is fixedly connected with two driving gears 305, and opposite ends of the two driving gears 305 are engaged with each other, one side of the tops of the two driving gears 305 is engaged with a driven gear 306, one end of the driven gear 306 near the stirring box 2 is fixedly connected with a connecting rod 307, the other end of the connecting rod 307 extends to the inner cavity through the stirring box 2, the connecting rod 307 is rotatably connected with the stirring box 2 through a bearing, and an outer wall of the connecting rod 307 is fixedly connected with a transmission wheel, in the embodiment of the invention, the driving motor 301 is turned on to drive the first belt pulley 302, the first belt pulley 302 drives the second belt pulley 304 to rotate through the belt, the two driving gears 305 to rotate in opposite directions under the action of the speed reducer 303, thereby driving the two driving gears 307 to rotate in opposite directions through the driven gear 306, thereby driving the two connecting rod 307 to rotate in opposite directions, and drive the stirring assembly 4 to perform stirring process.
As shown in fig. 3, the stirring assembly 4 includes two rotating rods 401 rotatably installed in the inner cavity of the stirring box 2, one end of each of the two rotating rods 401 is fixedly connected with one end of each of two connecting rods 307, the outer wall of each of the rotating rods 401 is fixedly connected with a stirring paddle 402 at equal intervals, the other end of each of the stirring paddles 402 is fixedly connected with a scraping plate 403, and the outer wall of each of the scraping plates 403 is attached to the inner wall of the stirring box 2.
As shown in fig. 5, the transportation device 6 includes a supporting plate 601 fixedly installed at one end of the frame 1, an inner end of the supporting plate 601 is fixedly connected with a conveying rack 606, two ends of the conveying rack 606 are rotatably connected with rotating shafts 602, an outer wall of the rotating shaft 602 is connected with a conveying belt 603 in a transmission manner, an outer wall of the conveying belt 603 is fixedly connected with the placing box 604 at equal intervals, one end of the bottom rotating shaft 602 penetrates through the supporting plate 601 and is fixedly connected with a driving wheel 605, and the driving wheel 605 is in transmission connection with the driving wheel on the connecting rod 307 through a transmission belt (not shown in the figure).
As shown in fig. 6, the screening device 7 includes a connecting frame 701 fixedly installed on the outer wall of a conveying frame 606, the upper and lower ends of the two sides of the connecting frame 701 are respectively and fixedly connected with a long rod 702 and a short rod 703, the other ends of the long rod 702 and the short rod 703 are both and fixedly connected with a spring 704, the other end of the spring 704 is fixedly connected with a connecting rod 705, the top of the connecting rod 705 above the connecting frame 701 is fixedly connected with a first screening plate 706, the bottom of the connecting rod 705 below the connecting frame 701 is fixedly connected with a second screening plate 707, both ends of the second screening plate 707 and the first screening plate 706 are both and fixedly installed with a vibration motor 708, the screen aperture of the first screening plate 706 is larger than that of the second screening plate 707, in the embodiment of the present invention, the first screening plate 706 and the second screening plate are driven to vibrate by opening the vibration motor 708, when the first screening plate 706 vibrates, qualified raw materials fall into the second screening plate 707 through the screen apertures to perform secondary screening processing, the qualified raw materials fall into the second screening box 2 through the screen apertures, the second screening plate 707 through manual screening holes, the manual screening efficiency of the qualified raw materials is improved, the manual screening raw materials fall into the manual screening box, the manual screening device, the manual screening efficiency of the manual screening plate 707 is further improved, the qualified raw materials is further, the qualified raw materials is improved, and the manual screening efficiency of the manual screening device, and the manual screening device is further improved.
The invention also discloses a method for preparing the concrete based on the slag activity excitant by using the concrete stirring device based on the slag activity excitant, which comprises the following steps:
step one, taking granulated blast furnace slag as a main raw material, adding the granulated blast furnace slag into a conveying device 6, conveying the granulated blast furnace slag into a screening device 7 through the conveying device 6 for screening treatment, and feeding the granulated blast furnace slag screened by the screening device 7 into a stirring box 2;
step two, adding fly ash and an exciting agent in different proportion groups into a stirring box 2 for stirring and mixing treatment, wherein the mixing amount of the exciting agent is between 15% and 20%, the mixing amount of the fly ash is between 17.5% and 35%, and special cement clinker and anhydrous gypsum are used as novel low-carbon and waste-utilization cementing materials without alkali exciting agents to prepare the slag sulphoaluminate cement;
in the first step, the slag excitant selects an alkali-free granulated blast furnace slag excitant produced by Tangshan polar bear building materials, the granulated blast furnace slag selects S95 slag powder produced by Hebei Qingfeng green energy solid waste disposal company, the fly ash selects II-grade fly ash produced by Texas Hua energy power plant company, and the special cement clinker is totally called fast-setting fast-hardening high belite sulphoaluminate cement clinker;
the cement mortar strength comparison is carried out on slag sulphoaluminate cement (S.SAC) and Ordinary Portland Cement (OPC) according to GB/T17671-2021 cement mortar strength test method (ISO method), wherein the number 1 is OPC mortar, the numbers 2-4 are respectively 85%, 15%, 80%, 20%, 75% and 25%, and the mixing proportion of the S.SAC mortar is shown in Table 1.
The test piece is a prism of 40mm × 40mm × 160mm, after molding, the test piece is first cured in a curing box at a temperature of 20 ± 1 ℃ and a humidity of 90% or more for 24h, then the mold is removed, and the test piece is then cured in water at a temperature of 20 ± 1 ℃ for 3d and 28d, and the flexural and compressive strengths of the test piece are measured, and the results are shown in table 2.
As can be seen from the detection result, as the proportion of the exciting agent increases, the flexural strength and the compressive strength of the mortar are reduced, but the flexural strength and the compressive strength of the mortar are higher than the requirements of GB 175-2007 general portland cement on the strengths of different ages, and when the mortar reaches the age of 28d, the S & SAC of the exciting agent with the proportion of 15% is obviously higher than the OPC of the same age, and the flexural strength is especially outstanding; the S.SAC of 20% of the activator is equivalent to the OPC strength in the same age, so that the activator should not be incorporated in an excessively large proportion when the S.SAC is prepared, and preferably 15% is incorporated when high-performance and high-strength grades are required, and 20% is generally incorporated.
Concrete mix proportion design was carried out according to the relevant regulations of JGJ 55-2011 "design rule for general concrete mix proportion", and 5 mix proportions were designed in total, as shown in table 3.
Wherein the number 1 is ordinary portland cement concrete; the number 2 is 15 percent of slag sulphoaluminate cement concrete of the excitant; the number 3 is 20 percent of slag sulphoaluminate cement concrete of the excitant; the serial numbers 4-5 are slag sulphoaluminate cement concrete prepared by replacing slag with 17.5 percent of fly ash and 35 percent of fly ash on the basis of slag sulphoaluminate cement with 15 percent of excitant. Then, carrying out various tests on the concrete mixture according to relevant regulations of GB/T50080-2016 (Standard for Performance test methods of common concrete mixtures), and respectively manufacturing concrete test pieces with the age of 7d and 28d, wherein the size of a compressive strength test piece is 100mm multiplied by 100mm, the size of a flexural strength test piece is 100mm multiplied by 400mm, the test pieces are molded and maintained for 24 hours at room temperature, then the mold is removed, the test pieces are placed in a standard maintenance room for maintenance, and the maintenance environment is as follows: the temperature is 20 plus or minus 2 ℃ and the relative humidity is more than 95 percent; the compressive and flexural strengths of the concrete are shown in Table 4.
The concrete strength of the comparison numbers 1-3 shows that under the condition of the same cementing material, the compression strength of S & SAC concrete 28d with the doping amount of the exciting agent of 15% is obviously higher than that of OPC concrete, the compression strength of S & SAC concrete 28d with the doping amount of the exciting agent of 20% is equivalent to that of OPC concrete, the result is consistent with the cement mortar test result, the flexural strength of S & SAC concrete is higher than that of OPC concrete, and the strength of the concrete of the comparison numbers 4-5 shows that under the condition of a certain cementing material, the compression strength is reduced along with the increase of the using amount of the fly ash, but the flexural-compression ratio is increased, because the fly ash replaces the cement to delay the hydration of the concrete, along with the increase of the age period, the secondary hydration of the fly ash enables the later strength of the concrete to be increased, and the temperature rise generated by the hydration of the fly ash can be obviously reduced, and the doping of the fly ash has obvious effects on reducing the using amount of S & SAC, saving the cost and improving the flexural-compression ratio.
Conclusion
(1) The slag excitant is added to effectively excite the activity of the granulated blast furnace slag, fully play the contribution of the granulated blast furnace slag to the early and later mechanical properties of the cement, greatly promote the hydration hardening speed of the cement, and further improve the early strength and the later strength, especially the flexural strength.
(2) With the increase of the mixing amount of the slag excitant, the compressive strength and the flexural strength of the prepared cement mortar and S & SAC concrete are in a descending trend, so that the cement mortar and S & SAC concrete are adjusted according to the actual design requirements during production, and the proportion of 15 percent is suitable for the requirement of high performance and high strength grade.
(3) The addition of the fly ash into the S.SAC concrete can further reduce the consumption of the S.SAC, save the cost and improve the flexural strength ratio, and the fly ash can also obviously reduce the temperature rise generated by cement hydration, and the S.SAC has the characteristics of low hydration heat and high flexural strength, so that the S.SAC concrete has wide application prospects in the engineering of mass concrete, highway subgrade and the like.
In the embodiments of the present invention, the circuit and the electronic component are all the prior art, and those skilled in the art can fully realize the present invention, and needless to say, the protection content of the present invention also does not relate to the improvement of the internal structure and the method, and it is to be noted that the standard parts used in the present invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts the conventional means such as the mature bolt, rivet, welding, etc. in the prior art, the machinery, the parts and the equipment all adopt the conventional types in the prior art, and the inventor does not detailed herein.
And those not described in detail in this specification are well within the skill of those in the art.
When the stirring device works, raw materials are put into the conveying device 6, the driving motor 301 is started to drive the first belt pulley 302 to rotate, the first belt pulley 302 drives the second belt pulley 304 to rotate through a belt, the two driving gears 305 are driven to rotate in the reverse direction under the action of the speed reducer 303, and the two connecting rods 307 are driven to rotate in the reverse direction through the driven gear 306, so that the stirring assembly 4 is driven to carry out stirring treatment;
the connecting rod 307 can drive the driving wheel 605 and the rotating shaft 602 to rotate through the driving wheel and the driving belt, the rotating shaft 602 drives the conveying belt 603 to move from bottom to top, the conveying belt 603 drives the placing box 604 and the raw materials in the placing box 604 to convey, so that the raw materials are conveyed upwards efficiently, and the raw materials fall into the screening device 7 to be screened along with the moving process of the placing box 604, so that the automatic feeding of the screening device 7 is realized;
the vibration motor 708 is started to drive the first screening plate 706 and the second screening plate 707 to vibrate, when the first screening plate 706 vibrates, qualified raw materials fall into the second screening plate 707 through screen holes to be subjected to secondary screening treatment, the raw materials secondarily screened by the second screening plate 707 fall into the stirring box 2 through screen holes to be stirred, mixed and discharged, unqualified raw materials are conveyed to the second screening plate 707 through the first screening plate 706 in a vibration mode and then are discharged through the second screening plate 707 in a vibration mode, the raw materials are screened through the arranged screening device 7, the qualified raw materials fall from the screen hole positions, meanwhile, the second screening plate 707 further screens the fallen raw materials, screening is more delicate, manual screening is not needed, the use of workers is facilitated, the labor force is greatly saved, the construction efficiency is effectively improved, and the screening efficiency is improved;
qualified raw materials of the screening device 7 enter the stirring box 2, the two rotating rods 401 are driven to rotate in the reverse direction through the two connecting rods 307, the rotating rods 401 drive the stirring paddles 402 and the scraping plates 403 to rotate, the two rotating rods 401 drive the stirring paddles 402 to rotate in the reverse direction, so that the raw materials are mixed more uniformly, the performance of the prepared concrete is better, and meanwhile, the inclined surfaces of the scraping plates 403 scrape the inner wall of the stirring box 2, so that the accumulation of the raw materials on the inner wall is avoided;
after the alkali-activated cementitious material concrete is prepared, when the servo motor 505 is started to drive the rotating shaft 502 to rotate, the first belt pulley 302 drives the sealing plate 504 to rotate, the discharge hole 203 can be opened, and discharge treatment is carried out, so that the working principle of the slag activity activator-based concrete stirring device and the preparation method is described above.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Agitating unit of concrete based on slay activity excitant, its characterized in that, including frame (1) and fixed mounting agitator tank (2) at frame (1) top, the inside of agitator tank (2) is provided with stirring subassembly (4) that are used for stirring the raw materials, drive assembly (3) that are used for driving stirring subassembly (4) and carry out the stirring are installed to top one side of frame (1), the one end of agitator tank (2) is provided with conveyer (6) that are used for transporting the raw materials, conveyer (6) are close to stirring subassembly (4) one end and are provided with sieving mechanism (7).
2. The stirring device of concrete based on slag activity excitant of claim 1, wherein: an observation window (201) is arranged at one end of the top of the stirring box (2), a feeding hole (202) is formed in the other end of the stirring box, a discharging hole (203) is formed in the bottom of the stirring box (2), and an opening and closing assembly (5) used for sealing is arranged at the position of the discharging hole (203).
3. The stirring device of concrete based on slag activity excitant of claim 2, wherein: the opening and closing assembly (5) comprises fixing seats (501) fixedly mounted at two ends of the bottom of the stirring box (2), a rotating shaft (502) is connected to the surface of each fixing seat (501) in a rotating mode, a connecting plate (503) is fixedly connected to the inner side end of each rotating shaft (502), a sealing plate (504) is fixedly connected between the connecting plates (503), the size of each sealing plate (504) is matched with the size of each discharging port (203), and a servo motor (505) is fixedly connected to the other end of each rotating shaft (502).
4. The slag reactivity stimulant-based concrete mixing device as claimed in claim 1, wherein: drive assembly (3) include driving motor (301) and speed reducer (303) of fixed mounting at frame (1) top, the first belt pulley (302) of output fixedly connected with of driving motor (301), the output fixedly connected with second belt pulley (304) of speed reducer (303), and first belt pulley (302) carry out the transmission with second belt pulley (304) through the belt and be connected, two driving gear (305) of output fixedly connected with of speed reducer (303), and the looks remote site intermeshing of two driving gear (305), two top one side meshing of driving gear (305) is connected with driven gear (306), what driven gear (306) were close to agitator tank (2) one end fixedly connected with connecting rod (307), the other end of connecting rod (307) runs through agitator tank (2) and extends to the inner chamber, connecting rod (307) are connected through the bearing rotation with agitator tank (2), and the outer wall fixedly connected with drive wheel of connecting rod (307).
5. The slag reactivity stimulant-based concrete mixing device as claimed in claim 4, wherein: stirring subassembly (4) include that two rotate dwang (401), two of installing at agitator tank (2) inner chamber dwang (401) one end and two connecting rod (307) one end fixed connection, outer wall equidistance fixedly connected with stirring rake (402) of dwang (401), the other end fixedly connected with scraper blade (403) of stirring rake (402), and the outer wall and agitator tank (2) inner wall of scraper blade (403) laminate each other.
6. The slag reactivity stimulant-based concrete mixing device as claimed in claim 4, wherein: the conveying device (6) comprises a supporting plate (601) fixedly mounted at one end of the rack (1), the inner side end of the supporting plate (601) is fixedly connected with a conveying frame (606), two ends of the conveying frame (606) are rotatably connected with rotating shafts (602), the outer wall of each rotating shaft (602) is connected with a conveying belt (603) in a transmission mode, boxes (604) are placed in the outer wall of each conveying belt (603) in a fixedly connected mode at equal intervals, the bottom of each box is formed in a manner that one end of each rotating shaft (602) penetrates through the supporting plate (601) and is fixedly connected with a driving wheel (605), and the driving wheels (605) are in transmission connection with the driving wheels on the connecting rods (307) through transmission belts.
7. The slag reactivity excitant based concrete mixing apparatus according to claim 6, wherein: screening device (7) are including link (701) of fixed mounting at carriage (606) outer wall, the upper and lower end difference fixedly connected with stock (702) and quarter butt (703) of link (701) both sides, the equal fixedly connected with spring (704) of the other end of stock (702) and quarter butt (703), the other end fixedly connected with connecting rod (705) of spring (704) is located link (701) top connecting rod (705) top fixedly connected with first screening board (706), is located link (701) below connecting rod (705) bottom fixedly connected with second screening board (707), the equal fixed mounting in both ends of second screening board (707) and first screening board (706) has vibrating motor (708).
8. A method for preparing slag activity stimulant-based concrete using the slag activity stimulant-based concrete mixing device as set forth in claim 1, which comprises the steps of:
step one, taking granulated blast furnace slag as a main raw material, adding the granulated blast furnace slag into a conveying device (6), conveying the granulated blast furnace slag into a screening device (7) through the conveying device (6) for screening treatment, and feeding the granulated blast furnace slag screened by the screening device (7) into a stirring box (2);
and step two, adding the fly ash and the exciting agent in different proportion groups into the stirring box (2) for stirring and mixing treatment, wherein the mixing amount of the exciting agent is between 15% and 20%, and the mixing amount of the fly ash is between 17.5% and 35%, so as to prepare the slag sulphoaluminate cement.
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| CN202211724993.8A CN115648428A (en) | 2022-12-31 | 2022-12-31 | Concrete stirring device based on slag activity excitant and preparation method |
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| CN202211724993.8A CN115648428A (en) | 2022-12-31 | 2022-12-31 | Concrete stirring device based on slag activity excitant and preparation method |
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Application publication date: 20230131 |