High-strength concrete and stirring equipment thereof
By setting up adjustment components in the mixing equipment, we ensure that the concrete is stirred in all directions and uniformly during the mixing process, solving the problem of uneven stirring in the existing mixing device, and improving the strength distribution and stirring efficiency of concrete.
Patent Information
- Application Number
- CN202411993542.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-03-28
AI Technical Summary
When the existing mixing device stirs a large amount of concrete, the resistance of the mixing rod increases, resulting in uneven mixing. In particular, the concrete on the edge of the mixing barrel is difficult to be fully and evenly stirred, which is prone to problems such as aggregate clumping and uneven dispersion of admixtures, resulting in insufficient concrete strength.
A high-strength concrete and its mixing equipment are designed. By setting up a mixing swing adjustment component, an angle offset component and an inner wall stirring adjustment component, the movement of the mixing rod and adjustment plate is adjusted to ensure that the concrete is stirred in all directions and evenly during the mixing process, avoiding layered and local unmixed.
The uniform stirring of high-strength concrete is achieved, the strength distribution of concrete is improved, the mixture is avoided, the energy and time are saved, and the high-quality use of concrete in large-scale engineering projects is ensured.
Smart Images
Figure CN119704399A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of concrete, in particular to high-strength concrete and mixing equipment thereof. Background Art
[0002] With the rapid development of the modern construction industry, various large and super-large projects with strict requirements on structural performance continue to emerge. For example, there are many super-high-rise buildings, which need to withstand huge vertical loads and complex external forces such as wind loads and earthquakes; large-span bridges spanning rivers, lakes and seas need to cope with the challenges brought by vehicle driving, their own weight and changing climate environments; there are also large-scale water conservancy hub projects that must resist strong water flow impact and water pressure. In these engineering scenarios, traditional strength grade concrete can no longer meet the requirements of structural bearing capacity and durability. Therefore, the research and development and application of high-strength concrete came into being, aiming to provide these key engineering parts with building materials with higher strength and better durability.
[0003] When the existing mixing device is used to mix a large amount of concrete, the resistance to the mixing rod will increase. Although the mixing time is prolonged, due to the large amount of concrete, there are still some problems of inadequate mixing and uneven mixing. Some block materials in the concrete are not fully mixed, resulting in uneven strength distribution of the concrete and reduced overall strength. In addition, the concrete at the edge of the mixing barrel is not conveniently mixed as fully and evenly as the central area, which is prone to problems such as aggregate clumping and uneven dispersion of admixtures. The concrete in the edge area may have voids or uneven strength distribution, resulting in insufficient concrete strength. In view of the above problems, it is urgent to carry out innovative design based on the original foundation. Summary of the invention
[0004] The object of the present invention is to provide a high-strength concrete and a mixing device thereof, so as to solve the problem proposed in the above-mentioned background technology that when a large amount of concrete is mixed, the resistance to the mixing rod will increase, and due to the large amount of concrete, there are still local problems of inadequate mixing and uneven mixing. The concrete at the edge of the mixing barrel is not convenient to be fully and evenly mixed like the central area. The technical solution of the present invention is aimed at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology.
[0005] To achieve the above object, the present invention provides the following technical solutions: In a first aspect, a high-strength concrete is provided, comprising the following raw materials: cement, basalt crushed stone, medium sand, silica fume, fly ash, slag powder, admixture and water; The specific raw materials (per cubic meter of concrete) usage and proportion are as follows: cement, basalt crushed stone and medium sand: usage is 360kg, accounting for 50% of the total amount of cementitious materials; silica fume: usage is 36kg, accounting for 5% of the total amount of cementitious materials; fly ash: usage is 180kg, accounting for 25% of the total amount of cementitious materials; slag powder: usage is 144kg, accounting for 20% of the total amount of cementitious materials; admixture: usage is 7.2kg, and its dosage is 1%; water: usage is 160kg, and the water-cement ratio is 0.22.
[0006] Preferably, the cement is P・O52.5 ordinary Portland cement, and its density is 3.1g / cm³; the particle size of the basalt crushed stone is 5-20mm, the apparent density is 2.8g / cm³, the crushing index value does not exceed 10%, the content of needle-like particles does not exceed 5%, and the mud content does not exceed 0.5%; the fineness modulus of the medium sand is 2.8, the apparent density is 2.6g / cm³, and the mud content does not exceed 1%; the surface area of the silica ash is 18000m² / kg, and the silicon dioxide content is not less than 90%; the fineness of the fly ash is 45μm; the surface area of the slag powder is 400m² / kg, and the activity index is not less than 75%, and the admixture is a polycarboxylic acid-based high-efficiency water-reducing agent, with a water reduction rate of 30% and a solid content of 20%.
[0007] In a second aspect, the present invention provides a high-strength concrete mixing equipment, comprising a mixing drum, a top cover is installed on the top of the mixing drum, an electric push rod A is installed on the outside of the mixing drum, a discharging plate is rotatably connected to the bottom of the mixing drum, and the extended end of the electric push rod A is connected to the discharging plate, a rotating rod is rotatably installed at the bottom of the inner wall of the top cover, rotating plates are rotatably connected at both ends of the bottom of the rotating rod, four groups of mixing rods are rotatably connected at the bottom of the rotating plate, mixing plates are fixedly installed at the bottom of the four groups of mixing rods, sliding rods are fixedly installed at both ends of the top of the mixing plate, and an adjusting plate is slidably connected to the surface of the sliding rod, a gear sleeve is fixedly installed on the surface of one group of mixing rods, a ring is limitedly slidably provided on the surface of the gear sleeve, a connecting rod is limitedly slidably provided on the surface of the ring, a mounting rod is fixedly installed on the bottom end of the rotating rod, a scraper is arranged at the bottom of the mounting rod, and a pressure sensor is installed at the bottom of the inner wall of the mixing drum; A mixing swing adjustment component, which is installed at the top of the top cover and the bottom of the gear sleeve. The mixing swing adjustment component is used to adjust its swing amplitude according to the weight of the concrete, so that the concrete can have a better mixing effect at different levels; An angle offset assembly, which is installed at the bottom of the rotating plate and above the rotating rod, and can offset the mixing plate and the regulating plate to different degrees according to the amount of concrete mixing; The inner wall stirring and adjusting component is installed on the top of the top cover and the upper end of the scraper. The inner wall stirring and adjusting component can make the concrete near the inner wall of the mixing drum have a better stirring effect.
[0008] Preferably, the rotating plate is cross-shaped, and the four groups of stirring rods are evenly distributed in a circular shape at the bottom of the rotating plate.
[0009] Preferably, the mixed swing adjustment assembly includes a resistance ring installed on the top inner top of the top cover, a conical notch is opened inside the resistance ring, the upper end of the rotating rod is connected with a moving ring for limiting sliding, an electric push rod B is installed on the upper end of the rotating rod, the protruding end of the electric push rod B is connected with the bottom of the moving ring, an oil pipe A is fixedly installed on the upper end of the moving ring, a piston rod A is limitedly slid inside the oil pipe A, an oil tank A is installed at the bottom of the gear sleeve, a piston rod B is limitedly slid inside the oil tank A, the bottom of the piston rod B is connected to the top of the ring, and a hose is connected between the oil pipe A and the oil tank A.
[0010] Preferably, the diameter of the conical notch at the lower end is smaller, and the diameter of the notch at the upper end is larger.
[0011] Preferably, the angle offset assembly includes an oil tank B installed inside the movable ring at the upper end of the rotating rod for limited sliding, a piston rod C is limitedly sliding inside the oil tank B, the top of the piston rod C is connected to the bottom of the top cover, and also includes an oil tank C installed at the bottom of the rotating plate, a piston rod D is limitedly sliding inside the oil tank C, a rack is installed on the end of the piston rod D, the bottom of the rotating plate is rotatably connected to a gear set, and a hose is connected between the oil tank B and the oil tank C.
[0012] Preferably, the gear set is composed of two coaxially connected gears of different diameters, the upper end of the gear set is meshed with the rack, and the lower end of the gear set is meshed with the upper end of the gear sleeve.
[0013] Preferably, the inner wall stirring and adjusting component includes an oil tube B installed on the top of the movable ring at the upper end of the rotating rod for limited sliding, a piston rod E is limited sliding inside the oil tube B, and also includes an adjustment platform installed on the top of the scraper, the bottom end of the mounting rod is limited sliding inside the adjustment platform, an oil tank D is installed at the bottom end of the mounting rod, a piston rod F is limited sliding inside the oil tank D, and the oil tube B is connected to the oil tank D by a hose.
[0014] Preferably, the scraper is in an "L" shape, and the ends of the piston rod E and the piston rod A are fixedly connected with a protrusion, and the surface of the protrusion is provided with a rounded corner.
[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention, through the provided mixing swing adjustment assembly, rotating rod, rotating plate, stirring rod, mixing plate, sliding rod and adjusting plate, enables the stirring device to enable the adjusting plate to move up and down inside when stirring high-strength concrete, so that the adjusting plate can contact concrete at different levels, thereby achieving all-round stirring, and the movement of the adjusting plate can ensure that the concrete will not be layered or partially mixed unevenly during the stirring process, thereby improving the uniformity of the concrete, and when the amount of concrete is large, the amplitude of the movement of the adjusting plate is large, which helps to ensure that a large amount of concrete can be fully stirred, and when the amount of concrete is small, the amplitude of the movement of the adjusting plate is also reduced, which can not only avoid the degradation of concrete performance caused by excessive stirring, but also save energy and time.
[0016] 2. The present invention, through the provision of an angle offset assembly, a gear sleeve, a stirring rod, a mixing plate, a sliding rod and an adjusting plate, when the rotating rod rotates, the mixing plate and the adjusting plate can be synchronously deflected according to the mixing amount of concrete, which can not only avoid the increase of resistance to the stirring rod when a large amount of concrete is stirred, but also increase the mixing effect between the central area and the outer ring of the concrete when the rotating plate synchronously rotates. By synchronously deflecting the mixing plate and the adjusting plate, the concrete can be more effectively dispersed, and the resistance to the stirring rod can be reduced. The deflection design makes the stirring more uniform, especially between the central area and the outer ring of the concrete, which can increase the mixing effect, avoid the occurrence of stirring dead corners, and further improve the stirring efficiency.
[0017] 3. The present invention, through the inner wall stirring adjustment assembly, the mounting rod and the scraper, enables the scraper to swing toward the inside of the mixing drum synchronously when moving around the inner wall of the mixing drum, so that the scraper can not only scrape off the concrete attached to the inner wall of the mixing drum, but also mix it with the concrete in the outer circle of the mixing drum, and when the stirring amount is large, the swing amplitude will be increased synchronously, and when the stirring amount is small, the swing amplitude will be reduced synchronously, by effectively scraping off the attached concrete, the waste and accumulation of concrete in the mixing process are avoided, and the swing of the scraper promotes the mixing of the concrete in the inner and outer circles of the mixing drum, reduces the mixing dead angle, makes the concrete more uniform, and further improves the mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the bottom structure of the present invention; Figure 3 It is a schematic diagram of the internal cross-sectional structure of the present invention; Figure 4 It is a schematic diagram of the side end cross-sectional structure of the present invention; Figure 5 It is a schematic diagram of the internal structure of the present invention; Figure 6 This is an exploded schematic diagram of the internal structure of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle; Figure 8 It is a schematic diagram of the structure of the hybrid swing adjustment component; Fig. 9 It is a schematic diagram of the angle offset component structure; Fig.10 For the present invention Fig. 9 The enlarged structural diagram at B in the middle; Fig.11 It is a schematic diagram of the structure of the inner wall stirring and regulating component; Fig.12 For the present invention Fig.11 Enlarged structural diagram at point C in the middle.
[0019] In the figure: 1, mixing drum; 2, top cover; 3, electric push rod A; 4, discharge plate; 5, rotating rod; 6, rotating plate; 7, stirring rod; 8, mixing plate; 9, sliding rod; 10, adjusting plate; 11, gear sleeve; 12, mixing swing adjustment assembly; 121, resistance ring; 122, moving ring; 123, electric push rod B; 124, oil pipe A; 125, piston rod A; 126, oil tank A; 127, piston rod B; 13, sleeve Ring; 14, connecting rod; 15, angle offset assembly; 151, oil tank B; 152, piston rod C; 153, oil tank C; 154, piston rod D; 155, rack; 156, gear set; 16, mounting rod; 17, scraper; 18, inner wall stirring adjustment assembly; 181, oil pipe B; 182, piston rod E; 183, adjustment table; 184, oil tank D; 185, piston rod F; 19, pressure sensor. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] See also Figure 1-Figure 12 , the present invention provides a technical solution: a high-strength concrete and a mixing device thereof, comprising the following formula raw materials: cement, basalt crushed stone, medium sand, silica fume, fly ash, slag powder, admixture and water; The specific raw materials (per cubic meter of concrete) are as follows: cement, basalt crushed stone and medium sand: 360kg, accounting for 50% of the total cementitious materials; silica fume: 36kg, accounting for 5% of the total cementitious materials; fly ash: 180kg, accounting for 25% of the total cementitious materials; slag powder: 144kg, accounting for 20% of the total cementitious materials; admixture: 7.2kg, the dosage is 1%; water: 160kg, the water-binder ratio is 0.22; The cement is P・O52.5 ordinary Portland cement with a density of 3.1g / cm³; the particle size of the basalt crushed stone is 5-20mm, the apparent density is 2.8g / cm³, the crushing index value does not exceed 10%, the content of needle-like particles does not exceed 5%, and the mud content does not exceed 0.5%; the fineness modulus of the medium sand is 2.8, the apparent density is 2.6g / cm³, and the mud content does not exceed 1%; the surface area of the silica fume is 18000m² / kg, and the silicon dioxide content is not less than 90%; the fineness of the fly ash is 45μm; the surface area of the slag powder is 400m² / kg, and the activity index is not less than 75%; the admixture is a polycarboxylic acid-based high-efficiency water-reducing agent with a water reduction rate of 30% and a solid content of 20%.
[0022] A top cover 2 is installed on the top of the mixing drum 1, an electric push rod A3 is installed on the outside of the mixing drum 1, a discharging plate 4 is rotatably connected to the bottom of the mixing drum 1, and the extended end of the electric push rod A3 is connected to the discharging plate 4, a rotating rod 5 is rotatably installed at the bottom of the inner wall of the top cover 2, and rotating plates 6 are rotatably connected at both ends of the bottom of the rotating rod 5, and four groups of mixing rods 7 are rotatably connected at the bottom of the rotating plate 6, and mixing plates 8 are fixedly installed at the bottom of the four groups of mixing rods 7, and sliding rods 9 are fixedly installed at both ends of the top of the mixing plate 8. An adjusting plate 10 is slidably connected to the surface of the sliding rod 9, a gear sleeve 11 is fixedly installed on the surface of one group of mixing rods 7, a collar 13 is limitedly slidably provided on the surface of the gear sleeve 11, and a connecting rod 14 is limitedly slidably provided on the surface of the collar 13, a mounting rod 16 is fixedly installed at the bottom of the rotating rod 5, and a scraper 17 is arranged at the bottom of the mounting rod 16, and a pressure sensor 19 is installed at the bottom of the inner wall of the mixing drum 1; The mixing swing adjustment component 12 is installed at the top of the top cover 2 and the bottom of the gear sleeve 11. The mixing swing adjustment component 12 is used to adjust its swing amplitude according to the weight of the concrete, so that the concrete can have a better mixing effect at different levels; The angle offset assembly 15 is installed at the bottom of the rotating plate 6 and above the rotating rod 5. The angle offset assembly 15 can offset the mixing plate 8 and the adjusting plate 10 to different degrees according to the amount of concrete mixing; The inner wall stirring and adjusting assembly 18 is installed at the top of the top cover 2 and the upper end of the scraper 17. The inner wall stirring and adjusting assembly 18 can make the concrete near the inner wall of the mixing drum 1 have a better stirring effect; When a large amount of concrete is stirred, the resistance to the stirring rod 7 will increase, and due to the large amount of concrete, there will still be local inadequate stirring and uneven stirring. The concrete at the edge of the mixing barrel is not convenient to be fully and evenly stirred like the central area. This embodiment of the present invention can solve the above problems. The specific implementation method is as follows. When stirring the concrete, first, the material is added to the inside of the mixing drum 1 through the feed port above the top cover 2, and then the rotating rod 5 is driven by the motor to rotate. The rotating rod 5 will drive the stirring rod 7 and the mixing plate 8 to stir the internal concrete. When the rotating rod 5 drives the stirring rod 7 and the mixing plate 8 to stir, the motor will also drive the rotating plate 6 to rotate. At this time, the pressure sensor The device 19 can detect the weight of the material inside the mixing drum 1. At this time, the electric push rod B123 will move the moving ring 122 upward according to the weight of the material. At this time, the moving ring 122 will squeeze the piston rod C152 when moving, so that the oil inside the oil tank B151 is injected into the oil tank C153, so that the rack 155 drives the gear set 156 to rotate. When the gear set 156 rotates, it will drive the gear sleeve 11 to rotate, so that the four groups of stirring rods 7, the mixing plate 8 and the adjusting plate 10 at the bottom of the rotating plate 6 are deflected synchronously, which can not only avoid the increase of resistance on the stirring rod 7 when a large amount of concrete is stirred, but also can increase the mixing effect of the central area of the concrete and the outer ring when the rotating plate 6 rotates synchronously; As an embodiment of the present invention, the rotating plate 6 is cross-shaped, and four groups of stirring rods 7 are evenly distributed in a circumferential shape at the bottom of the rotating plate 6. The four groups of stirring rods 7 are evenly distributed in a circumferential shape to ensure uniformity during concrete mixing; As an embodiment of the present invention, the mixed swing adjustment component 12 includes a resistance ring 121 installed at the top of the inner top cover 2, a conical notch is opened inside the resistance ring 121, the upper end of the rotating rod 5 is limitedly slidably connected with a moving ring 122, an electric push rod B123 is installed at the upper end of the rotating rod 5, and the extended end of the electric push rod B123 is connected to the bottom of the moving ring 122, an oil pipe A124 is fixedly installed at the upper end of the moving ring 122, and a piston rod A125 is limitedly slidably inside the oil pipe A124, and the bottom of the gear sleeve 11 is fixedly installed at the upper end of the moving ring 122. An oil tank A126 is installed, and a piston rod B127 is limitedly slidable inside the oil tank A126. The bottom of the piston rod B127 is connected to the top of the collar 13. A hose is connected between the oil pipe A124 and the oil tank A126. When the high-strength concrete is stirred, the adjustment plate 10 can move up and down inside, so that the adjustment plate 10 can contact the concrete at different levels, thereby achieving all-round stirring. In addition, the amplitude of the movement of the adjustment plate 10 can be synchronously adjusted according to the stirring amount. As an embodiment of the present invention, the diameter of the conical notch at the lower end is smaller, and the diameter of the conical notch at the upper end is larger. The design of the conical notch can make the movement range of the adjustment plate 10 and the scraper 17 synchronously adjustable according to the amount of stirring; As an embodiment of the present invention, the angle offset component 15 includes an oil tank B151 installed inside the moving ring 122 at the upper end of the rotating rod 5 for limited sliding, a piston rod C152 is limitedly slid inside the oil tank B151, and the top of the piston rod C152 is connected to the bottom of the top cover 2, and also includes an oil tank C153 installed at the bottom of the rotating plate 6, a piston rod D154 is limitedly slid inside the oil tank C153, a rack 155 is installed at the end of the piston rod D154, and a gear set 156 is rotatably connected to the bottom of the rotating plate 6. A hose is connected between the oil tank B151 and the oil tank C153. According to the mixing amount of concrete, the mixing plate 8 and the adjusting plate 10 are synchronously deflected, which can not only avoid the increase of resistance to the stirring rod 7 when a large amount of concrete is mixed, but also can increase the mixing effect of the central area of the concrete and the outer ring when the rotating plate 6 rotates synchronously; As an embodiment of the present invention, the gear set 156 is composed of two coaxially connected gears of different diameters. The upper end of the gear set 156 meshes with the rack 155, and the lower end of the gear set 156 meshes with the upper end of the gear sleeve 11. The coaxially connected gears allow the two gears to rotate synchronously, and the gear sleeve 11 can be driven to rotate through the rack 155, thereby realizing the deflection of the angles of the mixing plate 8 and the adjusting plate 10; As an embodiment of the present invention, the inner wall stirring adjustment component 18 includes an oil pipe B181 installed on the top of the moving ring 122 at the upper end of the rotating rod 5, and a piston rod E182 is limited and slid inside the oil pipe B181, and also includes an adjustment platform 183 installed on the top of the scraper 17, the bottom end of the mounting rod 16 is limited and slid inside the adjustment platform 183, and an oil tank D184 is installed at the bottom of the mounting rod 16, and a piston rod F185 is limited and slid inside the oil tank D184, and the oil pipe B181 and the oil tank D184 are connected by a hose, and the scraper 17 can synchronously swing into the inside of the mixing drum 1 when moving around the inner wall of the mixing drum, so that the scraper 17 can not only scrape off the concrete attached to the inner wall of the mixing drum 1, but also mix it with the concrete in the inner and outer circles of the mixing drum; As an embodiment of the present invention, the scraper 17 is "L"-shaped, and the ends of the piston rod E182 and the piston rod A125 are fixedly connected with protrusions, and the surfaces of the protrusions are provided with rounded corners. The "L"-shaped scraper 17 can carry more concrete attached to the inner wall and mix it with the concrete on the outer ring inside the mixing barrel. The rounded corners on the surface of the protrusions enable the resistance ring 121 to better contact the protrusions, thereby avoiding the problem of uneven force.
[0023] Working principle: When mixing concrete, first add the material into the mixing drum 1 through the feed port above the top cover 2, then the motor drives the rotating rod 5 to rotate, the rotating rod 5 drives the stirring rod 7 and the mixing plate 8 to mix the internal concrete, and when the rotating rod 5 drives the stirring rod 7 and the mixing plate 8 to mix, the motor also drives the rotating plate 6 to rotate. At this time, the pressure sensor 19 can detect the weight of the material inside the mixing drum 1. At this time, the electric push rod B123 will move the moving ring 122 upward according to the weight of the material. At this time, the moving ring 1 When moving, 22 will squeeze the piston rod C152, so that the oil in the oil tank B151 is injected into the oil tank C153, so that the rack 155 pushes the gear set 156 to rotate. When the gear set 156 rotates, it will drive the gear sleeve 11 to rotate, so that the four groups of stirring rods 7, the mixing plate 8 and the regulating plate 10 at the bottom of the rotating plate 6 are deflected synchronously, which can not only avoid the increase of resistance on the stirring rod 7 when a large amount of concrete is stirred, but also can enhance the mixing effect of the central area and the outer ring of the concrete when the rotating plate 6 rotates synchronously; When the moving ring 122 rises, it will drive the oil pipe A124 to move upward. At this time, when the rotating rod 5 rotates, the end protrusion of the piston rod A125 contacts the surface notch of the abutting ring 121. At this time, the piston rod A125 is reset by the spring, so that the oil in the oil tank A126 is injected into the oil pipe A124, so that the piston rod B127 drives the sleeve ring 13 to slide back and forth. Since the end of the connecting rod 14 is limited and slides in the slide groove on the surface of the sleeve ring 13, when one group of sleeve rings 13 moves, it will drive the other groups of sleeve rings 13 to move synchronously, so that the four groups of adjustment plates 10 all slide back and forth on the surface of the slide rod 9. When there is a lot of material inside the mixing drum 1, the moving distance of the moving ring 122 will increase, thereby expanding the sliding distance of the adjustment plate 10 on the surface of the slide rod 9, so that the adjustment plate 10 can contact concrete at different levels, thereby realizing all-round mixing. According to the weight of the material in the mixing drum 1, the electric push rod B123 drives the moving ring 122 to rise, and the moving ring 122 drives the oil pipe B181 to rise. When the rotating rod 5 rotates, the end protrusion of the piston rod E182 contacts the surface notch of the abutment ring 121. At this time, the piston rod E182 is reset by the spring, so that the oil in the oil tank D184 is injected into the oil pipe B181, so that the scraper 17 can move back and forth toward the mixing drum 1 synchronously when moving around the inner wall of the mixing drum 1. When there is a lot of material in the mixing drum 1, the moving distance of the moving ring 122 will increase. At this time, the moving distance of the scraper 17 into the mixing drum 1 will increase, thereby scraping off the concrete attached to the inner wall of the mixing drum 1, and mixing it with the concrete in the inner and outer circles of the mixing drum.
[0024] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. In the description of the present invention, unless otherwise specified, "multiple" means two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A high-strength concrete comprising the following raw materials: cement, basalt crushed stone, medium sand, silica fume, fly ash, slag powder, admixture and water; The specific raw materials (per cubic meter of concrete) usage and proportion are as follows: cement, basalt crushed stone and medium sand: usage is 360kg, accounting for 50% of the total amount of cementitious materials; silica fume: usage is 36kg, accounting for 5% of the total amount of cementitious materials; fly ash: usage is 180kg, accounting for 25% of the total amount of cementitious materials; slag powder: usage is 144kg, accounting for 20% of the total amount of cementitious materials; admixture: usage is 7.2kg, and its dosage is 1%; water: usage is 160kg, and the water-cement ratio is 0.
22.
2. The high-strength concrete according to claim 2, characterized in that: The cement is P・O52.5 ordinary Portland cement with a density of 3.1g / cm³; the particle size of the basalt crushed stone is 5-20mm, the apparent density is 2.8g / cm³, the crushing index value does not exceed 10%, the content of needle-like particles does not exceed 5%, and the mud content does not exceed 0.5%; the fineness modulus of the medium sand is 2.8, the apparent density is 2.6g / cm³, and the mud content does not exceed 1%; the surface area of the silica ash is 18000m² / kg, and the silicon dioxide content is not less than 90%; the fineness of the fly ash is 45μm; the surface area of the slag powder is 400m² / kg, and the activity index is not less than 75%; the admixture is a polycarboxylic acid-based high-efficiency water-reducing agent with a water reduction rate of 30% and a solid content of 20%.
3. A high-strength concrete mixing device, suitable for the high-strength concrete according to claim 3, characterized in that: The mixing drum (1) comprises a mixing drum (1), wherein a top cover (2) is installed at the top of the mixing drum (1), an electric push rod A (3) is installed outside the mixing drum (1), a discharging plate (4) is rotatably connected to the bottom of the mixing drum (1), an extended end of the electric push rod A (3) is connected to the discharging plate (4), a rotating rod (5) is rotatably connected to the bottom of the inner wall of the top cover (2), both ends of the bottom of the rotating rod (5) are rotatably connected to a rotating plate (6), the bottom of the rotating plate (6) is rotatably connected to four groups of mixing rods (7), and a mixing plate (8) is fixedly installed at the bottom of the four groups of mixing rods (7). Slide rods (9) are fixedly mounted at both ends of the top of the mixing plate (8), and an adjustment plate (10) is slidably connected to the surface of the slide rod (9); a gear sleeve (11) is fixedly mounted on the surface of a group of stirring rods (7), a sleeve ring (13) is limitedly slidably mounted on the surface of the gear sleeve (11), and a connecting rod (14) is limitedly slidably mounted on the surface of the sleeve ring (13); a mounting rod (16) is fixedly mounted on the bottom end of the rotating rod (5), and a scraper (17) is arranged at the bottom of the mounting rod (16); and a pressure sensor (19) is installed at the bottom of the inner wall of the stirring drum (1); A mixing swing adjustment component (12), the mixing swing adjustment component (12) being mounted on the top of the top cover (2) and the bottom of the gear sleeve (11), the mixing swing adjustment component (12) being used to adjust its swing amplitude according to the weight of the concrete, so that concrete of different weights can have a better mixing effect; An angle offset component (15), the angle offset component (15) being installed at the bottom of the rotating plate (6) and above the rotating rod (5), and the angle offset component (15) can offset the mixing plate (8) and the regulating plate (10) to different degrees according to the amount of concrete mixing; An inner wall stirring and adjusting component (18) is installed at the top end of the top cover (2) and the upper end of the scraper (17). The inner wall stirring and adjusting component (18) can also achieve a good stirring effect on the concrete near the inner wall of the mixing drum (1).
4. A high-strength concrete mixing device according to claim 3, characterized in that: The rotating plate (6) is cross-shaped, and the four groups of stirring rods (7) are evenly distributed in a circular shape at the bottom of the rotating plate (6).
5. The high-strength concrete mixing device according to claim 3, characterized in that: The mixed swing adjustment assembly (12) comprises a resistance ring (121) mounted on the top of the top cover (2), the resistance ring (121) having a conical notch therein, the upper end of the rotating rod (5) being slidably connected to a moving ring (122), the upper end of the rotating rod (5) being mounted with an electric push rod B (123), the protruding end of the electric push rod B (123) being connected to the bottom of the moving ring (122), the upper end of the moving ring (122) being fixedly mounted with an oil pipe A (124), the inside of the oil pipe A (124) being slidably limited with a piston rod A (125), the bottom of the gear sleeve (11) being mounted with an oil tank A (126), the inside of the oil tank A (126) being slidably limited with a piston rod B (127), the bottom of the piston rod B (127) being connected to the top of the collar (13), and a hose being connected between the oil pipe A (124) and the oil tank A (126).
6. A high-strength concrete mixing device according to claim 5, characterized in that: The diameter of the conical notch at the lower end is smaller, and the diameter of the conical notch at the upper end is larger.
7. The high-strength concrete mixing device according to claim 3, characterized in that: The angle offset assembly (15) comprises an oil tank B (151) installed in a limited sliding manner inside a moving ring (122) at the upper end of the rotating rod (5), a piston rod C (152) is limitedly slid inside the oil tank B (151), the top end of the piston rod C (152) is connected to the bottom of the top cover (2), and also comprises an oil tank C (153) installed at the bottom of the rotating plate (6), a piston rod D (154) is limitedly slid inside the oil tank C (153), a rack (155) is installed at the end of the piston rod D (154), a gear set (156) is rotatably connected to the bottom of the rotating plate (6), and a hose is connected between the oil tank B (151) and the oil tank C (153).
8. A high-strength concrete mixing device according to claim 7, characterized in that: The gear set (156) is composed of two coaxially connected gears of different diameters; the upper end of the gear set (156) meshes with the rack (155), and the lower end of the gear set (156) meshes with the upper end of the gear sleeve (11).
9. The high-strength concrete mixing device according to claim 3, characterized in that: The inner wall stirring adjustment component (18) comprises an oil pipe B (181) installed on the top of the movable ring (122) at the upper end of the rotating rod (5) for limited sliding, a piston rod E (182) is limited sliding inside the oil pipe B (181), and also comprises an adjustment platform (183) installed on the top of the scraper (17), the bottom end of the mounting rod (16) is limited sliding inside the adjustment platform (183), the bottom end of the mounting rod (16) is installed with an oil tank D (184), the inside of the oil tank D (184) is limited sliding, and a piston rod F (185) is limited sliding, and the oil pipe B (181) and the oil tank D (184) are connected by a hose.
10. The high-strength concrete mixing device according to claim 3, characterized in that: The scraper (17) is L-shaped, and the ends of the piston rod E (182) and the piston rod A (125) are fixedly connected with a protrusion, and the surface of the protrusion is provided with a rounded corner.