Ultrahigh-toughness concrete production device

Abstract

The invention provides an ultrahigh-toughness concrete production device which comprises a rack, a material screening frame, a paving and raking part, a horizontal pushing assembly and a stirring assembly, a discharging hopper is arranged at the top of the rack, and a material scattering part is arranged below the discharging hopper; the material screening frame is arranged on the machine frame, located below the discharging hopper and used for screening aggregate. The paving and raking piece is arranged on the rack through a first telescopic piece and horizontally extends into the screening frame; one end of the horizontal pushing assembly is hinged to the discharging end of the material scattering part, and the other end is hinged to the raking part; the stirring assembly is arranged below the screening frame and is used for receiving and stirring materials; wherein the spreading and raking part can be driven by the first telescopic part to horizontally move and disperse aggregate in the screening frame, the spreading and raking part can horizontally move to drive the material dispersing part to vertically swing and enable the aggregate to be evenly scattered in the screening frame, the aggregate with the qualified particle size can be rapidly screened out, and the quality of finished products is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of concrete preparation, and more specifically, relates to a production device for ultra-high toughness concrete. Background Art

[0002] Ultra-high toughness concrete is a type of advanced cement-based composite material that significantly improves toughness, crack resistance, and durability through material design and process optimization. It uses high-grade cement, ultra-fine mineral admixtures (such as silica fume, fly ash), and fine sand with a particle size ≤ 0.6 mm as the matrix, eliminates coarse aggregates to reduce defects, and incorporates steel fibers or synthetic fibers (such as PVA, PE) as the toughening core. During preparation, a highly fluid slurry is achieved with precise control of the water-binder ratio (0.15 - 0.25) and a high-efficiency water reducer at low water consumption. The fibers are evenly dispersed through low-speed stirring, and interface bond strength is enhanced through steam curing or normal-temperature wet curing.

[0003] In the prior art, when preparing ultra-high toughness concrete, various materials are directly mixed and stirred together. There may be aggregates with larger particle sizes in the materials, and these aggregates will cause the surface of the formed finished product to be uneven, affecting the quality of the finished product. Summary of the Invention

[0004] An embodiment of the present invention provides a production device for ultra-high toughness concrete, which can quickly screen out aggregates with qualified particle sizes and improve the quality of the finished product.

[0005] To achieve the above object, the technical solution adopted by the present invention is: providing a production device for ultra-high toughness concrete, including a frame, a screening frame, a spreading rake member, a horizontal pushing assembly, and a stirring assembly. A feeding hopper is provided at the top of the frame, and a material spreading member is provided below the feeding hopper; the screening frame is arranged on the frame and is located below the feeding hopper for screening aggregates; the spreading rake member is arranged on the frame through a first telescopic member and horizontally extends into the screening frame; one end of the horizontal pushing assembly is hinged to the discharge end of the material spreading member, and the other end is hinged to the spreading rake member; the stirring assembly is arranged below the screening frame for receiving and stirring materials; wherein, the spreading rake member can horizontally move driven by the first telescopic member and disperse the aggregates in the screening frame, and the spreading rake member can horizontally move to drive the material spreading member to swing vertically and make the aggregates evenly fall into the screening frame.

[0006] In a possible implementation manner, the material spreading member includes a hose connected to the lower opening of the feeding hopper and a material spreading pipe connected to the lower end of the hose, and one end of the horizontal pushing assembly is hinged to the material spreading pipe.

[0007] In some embodiments, the horizontal pushing assembly includes a hinged rod and a second telescopic member. The hinged rod is hinged to the outer side wall of the bulk material pipe. The second telescopic member is arranged between the hinged rod and the spreading rake member. Two ends of the second telescopic member are respectively hinged to the hinged rod and the spreading rake member. The second telescopic member is hinged to the frame. The spreading rake member can move horizontally to drive the vertical swing of the bulk material pipe.

[0008] In some embodiments, the second telescopic member includes a sleeve and a telescopic rod. The upper part of the sleeve is hinged to the frame and is arranged with the opening downward. The upper end of the sleeve is hinged to the hinged rod. The telescopic rod is slidably connected in the sleeve and the lower end is hinged to the spreading rake member.

[0009] In a possible implementation manner, side openings are penetratingly provided on opposite side walls of the screening frame. Two shielding plates are hinged to the screening frame. The two shielding plates are arranged in one-to-one correspondence with the two side openings. The shielding plates can swing vertically to block or avoid the side openings.

[0010] In some embodiments, the middle part of the screening frame is rotatably connected to the frame. Third telescopic members are respectively arranged at two ends of the screening frame along the up-and-down direction. The lower ends of the third telescopic members are hinged to the frame and the upper ends are hinged to the screening frame, for driving the vertical swing of the screening frame.

[0011] In some embodiments, electromagnets are provided on the side walls of the screening frame, and magnets opposite to the electromagnets are provided on the shielding plates. The electromagnets can be energized to repel the magnets so that the shielding plates avoid the side openings.

[0012] In a possible implementation manner, a receiving hopper located below the screening frame is provided on the frame. The receiving hopper gradually converges towards the central axis from top to bottom. The stirring assembly is located below the receiving hopper and is arranged opposite to the lower opening of the receiving hopper.

[0013] In some embodiments, the stirring assembly is rotatably sleeved on the outer periphery of the lower opening of the receiving hopper. The stirring assembly includes a stirring tank, a stirring shaft and stirring blades. The stirring tank is rotatably connected to the frame and the upper opening is rotatably sleeved on the outer periphery of the lower opening of the receiving hopper. The stirring tank gradually converges towards the central axis from top to bottom. The stirring tank is driven by a power input member. The stirring shaft is arranged in the receiving hopper and extends downward into the stirring tank. The stirring blades are connected to the outer peripheral wall of the stirring shaft and extend obliquely upward.

[0014] In some embodiments, the power input member includes a driven gear, a rotary driving member and a driving gear. The driven gear is fixedly sleeved on the outer periphery of the stirring tank. The rotary driving member is arranged at the lower part of the frame and has a driving end extending upward. A driving shaft is connected to the driving end. The driving gear is connected to the driving shaft and meshes with the driven gear.

[0015] Compared with the prior art, the ultra-high toughness concrete production device provided in this embodiment pours granular aggregates into the feeding hopper. The aggregates fall from the lower opening of the feeding hopper onto the screening frame through the material spreading member. At the same time, the first telescopic member expands and contracts to drive the spreading rake member to move horizontally repeatedly, spreading the aggregates flat on the bottom of the screening frame. The spreading rake member drives the material spreading member to swing horizontally through the horizontal pushing assembly to evenly spread the material. Through the cooperation of the spreading rake member, the horizontal pushing assembly and the material spreading member, the aggregates are quickly and evenly distributed in the screening frame, and the aggregates with qualified particle sizes pass through the screening frame and enter the mixing assembly, realizing the rapid screening of the aggregates and improving the finished product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of the ultra-high toughness concrete production device provided in the embodiment of the present invention; Figure 2 For the embodiment of the present invention Figure 1 It is a partially enlarged structural diagram at position I in the figure; Figure 3 It is a schematic structural diagram of another perspective of the ultra-high toughness concrete production device provided in the embodiment of the present invention; Figure 4 For the embodiment of the present invention Figure 3 It is a partially enlarged structural diagram at position II in the figure; Figure 5 For the embodiment of the present invention Figure 1 It is a schematic structural diagram of the receiving hopper, mixing shaft and mixing blades in the figure; Figure 6 For the embodiment of the present invention Figure 1 It is a schematic structural diagram of the baffle, rotating shaft, torsion spring and magnet in the figure.

[0018] Among them, the reference numerals in the figures: 10. Frame; 11. Feeding hopper; 12. Bulk material component; 121. Hose; 122. Bulk material pipe; 13. Receiving hopper; 20. Screening frame; 21. Baffle; 22. Rotating shaft; 23. Torsion spring; 30. Paving rake component; 31. First telescopic component; 40. Stirring assembly; 41. Stirring tank; 42. Stirring shaft; 43. Stirring blades; 50. Horizontal pushing assembly; 51. Hinge rod; 52. Second telescopic component; 521. Sleeve; 522. Telescopic rod; 60. Guide plate; 70. Third telescopic component; 80. Electromagnet; 81. Magnet; 90. Power input component; 91. Driven gear; 92. Rotating drive component; 93. Drive shaft; 94. Driving gear. Detailed implementation manners

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0021] Ultra-high toughness concrete is a type of advanced cement-based composite material that significantly improves toughness, crack resistance and durability through material design and process optimization. It uses high-grade cement, ultra-fine mineral admixtures (such as silica fume, fly ash) and fine sand with a particle size ≤ 0.6 mm as the matrix, eliminates coarse aggregates to reduce defects, and incorporates steel fibers or synthetic fibers (such as PVA, PE) as the toughening core. During preparation, a highly fluid slurry with low water consumption is achieved by precisely controlling the water-binder ratio (0.15 - 0.25) and a high-performance water reducer. The fibers are evenly dispersed by low-speed stirring, and the interfacial bonding strength is improved by combining steam curing or normal-temperature wet curing.

[0022] In the prior art, when preparing ultra-high toughness concrete, various materials are directly mixed and stirred together. There may be aggregates with larger particle sizes in the materials, and these aggregates will make the surface of the formed finished product uneven, affecting the quality of the finished product.

[0023] Please refer to Figures 1 to 6 , and now the ultra-high toughness concrete production device provided by the present invention will be described. The ultra-high toughness concrete production device includes a frame 10, a screening frame 20, a spreading rake member 30, a horizontal pushing assembly 50, and a stirring assembly 40. A feeding hopper 11 is provided at the top of the frame 10, and a material scattering member 12 is provided below the feeding hopper 11; the screening frame 20 is arranged on the frame 10 and is located below the feeding hopper 11 for screening aggregates; the spreading rake member 30 is arranged on the frame 10 through a first telescopic member 31 and horizontally extends into the screening frame 20; one end of the horizontal pushing assembly 50 is hinged to the discharge end of the material scattering member 12, and the other end is hinged to the spreading rake member 30; the stirring assembly 40 is arranged below the screening frame 20 for receiving and stirring materials; wherein, the spreading rake member 30 can horizontally move driven by the first telescopic member 31 and disperse the aggregates in the screening frame 20, and the spreading rake member 30 can horizontally move to drive the material scattering member 12 to swing vertically and make the aggregates evenly fall into the screening frame 20.

[0024] Furthermore, a screening hole is penetrated through the bottom wall of the screening frame 20.

[0025] Furthermore, the spreading rake member 30 extends along the axial direction of the first telescopic member 31, and there are several rake teeth arranged at intervals along the direction perpendicular to the length direction of the first telescopic member 31 on the spreading rake member 30.

[0026] An ultra-high toughness concrete production device is provided in an embodiment of the present application. During its actual use, granular aggregates are poured into the feeding hopper 11, and the aggregates fall from the lower opening of the feeding hopper 11 through the material scattering member 12 into the screening frame 20. At the same time, the first telescopic member 31 expands and contracts to drive the spreading rake member 30 to move horizontally repeatedly, spreading the aggregates flat on the bottom of the screening frame 20. The spreading rake member 30 drives the material scattering member 12 to swing horizontally through the horizontal pushing assembly 50 to evenly scatter the materials. Through the cooperation of the spreading rake member 30, the horizontal pushing assembly 50, and the material scattering member 12, the aggregates are quickly and evenly scattered in the screening frame 20, and the aggregates with qualified particle sizes pass through the screening frame 20 and enter the stirring assembly 40. Finally, other powdery materials and liquid mixtures are added into the stirring assembly 40 to make the stirring assembly 40 stir. The spreading rake member 30 realizes the uniform dispersion of the aggregates through the horizontal movement of the first telescopic member 31, enabling the aggregates with qualified particle sizes to enter the stirring assembly 40, and the aggregates with unqualified particle sizes remain in the screening frame 20, realizing the screening of the aggregates and improving the quality of the finished product.

[0027] Compared with the prior art, the ultra-high toughness concrete production device provided in this embodiment pours granular aggregates into the feeding hopper 11. The aggregates fall from the lower opening of the feeding hopper 11 onto the screening frame 20 through the material spreading member 12. At the same time, the first telescopic member 31 expands and contracts to drive the spreading rake member 30 to move horizontally repeatedly, leveling the aggregates at the bottom of the screening frame 20. The spreading rake member 30 drives the material spreading member 12 to swing horizontally through the horizontal pushing assembly 50 to evenly spread the materials. Through the cooperation of the spreading rake member 30, the horizontal pushing assembly 50, and the material spreading member 12, the aggregates are quickly and evenly spread in the screening frame 20, and the aggregates with qualified particle sizes pass through the screening frame 20 and enter the mixing assembly 40, realizing the rapid screening of the aggregates and improving the finished product quality.

[0028] In a possible implementation manner, the above-mentioned material spreading member 12 adopts the structure as shown in Figures 1 to 3 , see Figures 1 to 3 . The material spreading member 12 includes a hose 121 connected to the lower opening of the feeding hopper 11 and a material spreading pipe 122 connected to the lower end of the hose 121. One end of the horizontal pushing assembly 50 is hinged to the material spreading pipe 122.

[0029] Specifically, the hose 121 has strong deformation ability, can adapt to the free swing of the material spreading pipe 122 under the action of the horizontal pushing assembly 50, avoiding the phenomenon of swing jamming. At the same time, the material spreading pipe 122 also provides a reliable installation position for the hinge between the horizontal pushing assembly 50 and the material spreading member 12.

[0030] In some embodiments, see Figures 1 to 3 . The horizontal pushing assembly 50 includes a hinge rod 51 and a second telescopic member 52. The hinge rod 51 is hinged to the outer side wall of the material spreading pipe 122; the second telescopic member 52 is arranged between the hinge rod 51 and the spreading rake member 30. Both ends of the second telescopic member 52 are respectively hinged to the hinge rod 51 and the spreading rake member 30. The second telescopic member 52 is hinged to the frame 10, and the spreading rake member 30 can move horizontally to drive the material spreading pipe 122 to swing vertically.

[0031] Specifically, through the linkage of the horizontal movement of the spreading rake member 30 and the second telescopic member 52, the material spreading pipe 122 is driven to swing vertically, forming a three-dimensional dynamic feeding path, significantly improving the covering uniformity of the materials in the screening frame 20. The combination of the hose 121 and the material spreading pipe 122 flexibly adapts to the displacement of the spreading rake member 30, avoiding local accumulation caused by the fixed position of the traditional rigid feeding pipe. Indirectly driving the material spreading pipe 122 by using the kinetic energy of the movement of the spreading rake member 30 reduces the demand for additional power sources and realizes energy-saving operation.

[0032] During use, the first telescopic member 31 is activated to repeatedly expand and contract, causing the spreading rake member 30 to repeatedly disperse and level the aggregate within the screening frame 20, providing fluidity to the aggregate and facilitating the passage of qualified-sized aggregate through the screening frame 20. At the same time, while the spreading rake member 30 repeatedly moves horizontally, it drives the second telescopic member 52 to swing (the second telescopic member 52 can adaptively expand and contract within the swing state to compensate for the length difference during the swing). The second telescopic member 52 drives the material spreading pipe 122 to swing through the hinge rod 51, causing the material spreading pipe 122 to evenly spread material onto the screening frame 20, improving the screening efficiency.

[0033] In some embodiments, referring to Figures 1 to 3 , the second telescopic member 52 includes a sleeve 521 and a telescopic rod 522. The upper part of the sleeve 521 is hinged to the frame 10 and is arranged with the opening facing downwards. The upper end of the sleeve 521 is hinged to the hinge rod 51; the telescopic rod 522 is slidably connected within the sleeve 521 and its lower end is hinged to the spreading rake member 30.

[0034] Specifically, the hinged design of the upper part of the sleeve 521 can absorb lateral vibrations, prevent mechanism deformation caused by material impact, extend the service life of the second telescopic member 52, and the structures of the sleeve 521 and the telescopic rod 522 are convenient for disassembly and replacement, reducing the later maintenance cost.

[0035] Since the upper part of the sleeve 521 is hinged to the frame 10, when the spreading rake member 30 moves horizontally over a large range, the material spreading pipe 122 can swing within a small range, avoiding excessive swing amplitude that may cause the aggregate to fall outside the screening frame 20, improving the practicality.

[0036] During use, the first telescopic member 31 is activated to repeatedly expand and contract, causing the spreading rake member 30 to repeatedly disperse and level the aggregate within the screening frame 20, providing fluidity to the aggregate and facilitating the passage of qualified-sized aggregate through the screening frame 20. At the same time, while the spreading rake member 30 repeatedly moves horizontally, it drives the second telescopic member 52 to swing (the second telescopic member 52 can cause the telescopic rod 522 to adaptively expand and contract within the sleeve 521 in the swing state to compensate for the length difference during the swing). The second telescopic member 52 drives the material spreading pipe 122 to swing through the hinge rod 51, causing the material spreading pipe 122 to evenly spread material onto the screening frame 20, improving the screening efficiency.

[0037] In a possible implementation manner, the above-mentioned screening frame 20 adopts the structure as shown in Figures 1 to 3 and Figure 6 , referring to Figures 1 to 3 and Figure 6 , through holes are provided through the opposite side walls of the screening frame 20, and two shielding plates 21 are hinged to the screening frame 20. The two shielding plates 21 are arranged in one-to-one correspondence with the two through holes, and the shielding plates 21 can swing vertically to block or avoid the through holes.

[0038] Specifically, the hinge point between the baffle plate 21 and the screening frame 20 is close to the upper opening of the screening frame 20, and the side opening extends toward the other two side walls. The cooperation between the side opening and the baffle plate 21 can open the baffle plate 21 after screening is completed to clean out stuck large-particle aggregates, and the baffle plate 21 can prevent aggregates from splashing when closed.

[0039] Under normal conditions, the baffle plate 21 blocks the side opening by its own gravity, and the rake member 30 moves repeatedly in a small range to disperse the aggregate. After the screening is completed, the staff can use the rake member 30 to push the unqualified aggregate toward the baffle plate 21, so that the aggregate pushes open the baffle plate 21 and is discharged from the screening frame 20, thereby realizing automatic cleaning of the unqualified aggregate.

[0040] Furthermore, the shielding plate 21 is hinged to the screening frame 20 via a rotating shaft 22, a torsion spring 23 is sleeved on the outer periphery of the rotating shaft 22, and two ends of the torsion spring 23 are respectively hinged to the shielding plate 21 and the screening frame 20, for driving the shielding plate 21 to shield the side opening.

[0041] Specifically, the elastic torque provided by the torsion spring 23 ensures that the shielding plate 21 is automatically closed when there is no external force, avoiding accidental opening due to vibration, and ensuring the controllability of the screening process. The torsion spring 23 can absorb the impact load of the material and reduce the wear of the rotating shaft 22, and the service life is increased by more than 30% compared with the rigid fixed structure.

[0042] Under the action of the torsion spring 23, the shielding plate 21 always tightly blocks the side opening, so as to avoid accidental opening of the shielding plate 21 when the aggregate screening is not completed, resulting in the discharge of qualified aggregate, thereby improving practicality.

[0043] In some embodiments, see Figure 1 , Figure 3 and Figure 4 The middle part of the screening frame 20 is rotatably connected to the frame 10, and both ends of the screening frame 20 are respectively provided with third telescopic members 70 arranged along the up and down directions. The lower end of the third telescopic member 70 is hinged to the frame 10, and the upper end is hinged to the screening frame 20, which is used to drive the screening frame 20 to swing vertically.

[0044] Specifically, two third telescopic members 70 are provided and symmetrically arranged on both sides of the screening frame 20, one of the third telescopic members 70 is extended, and the other third telescopic member 70 can be adaptively contracted. There is a certain gap between the raking member 30 and the inner bottom wall of the screening frame 20 to avoid interference between the raking member 30 and the screening frame 20 when swinging.

[0045] The third telescopic member 70 drives the screening frame 20 to swing vertically and repeatedly, and can dynamically adjust the screen surface inclination (in the range of 5°-25°) to optimize the screening efficiency for aggregates of different particle sizes. The swinging mode of the screening frame 20 can destroy the resonance phenomenon between the material and the screen, solving the technical problem that fine particles are easy to block the screen holes. The swinging of the screening frame 20 can also assist the material to move to the side opening, improving the efficiency of impurity discharge.

[0046] When in use, one of the third telescopic parts 70 can be extended, and the other third telescopic part 70 can be adaptively contracted, and then the extended third telescopic part 70 is contracted, and the shortened third telescopic part 70 is extended, and this process is repeated to achieve repeated shaking of the screening frame 20, thereby further improving the screening efficiency of aggregates.

[0047] After the screening is completed, the two third telescopic members 70 can be controlled to tilt the screening frame 20 to dump unqualified aggregates, thereby improving the convenience of use.

[0048] Furthermore, a guide plate 60 extending outward and downward is provided at the bottom of the screening frame 20 , and the guide plate 60 is arranged near the side opening for guiding unqualified aggregate. The upper end of the third telescopic member 70 is hinged to the guide plate 60 .

[0049] In some embodiments, see Figure 1 , Figure 3 and Figure 4 An electromagnet 80 is provided on the side wall of the screening frame 20, and a magnet 81 is provided on the shielding plate 21 opposite to the electromagnet 80. The electromagnet 80 can be energized to repel the magnet 81 so that the shielding plate 21 avoids the side opening.

[0050] Specifically, the repulsive action of the electromagnet 80 and the magnet 81 realizes non-contact control of the shielding plate 21, with a response time of less than 0.1 seconds, accurately matching the automated production rhythm. It is powered only when slag discharge is required, saving more than 60% energy compared to continuous pneumatic / hydraulic drive.

[0051] When it is necessary to discharge unqualified aggregate, the two third telescopic members 70 can be controlled to tilt the screening frame 20, turn on the electromagnet 80, and repel the magnet 81 to force the baffle plate 21 to overcome the torsion force of the torsion spring 23 to avoid the side opening, thereby releasing the unqualified aggregate and realizing the automatic discharge of the unqualified aggregate.

[0052] In a possible implementation, the rack 10 is configured as follows: Figure 1 , Figure 3 and Figure 5 The structure shown, see Figure 1 , Figure 3 and Figure 5, a receiving hopper 13 is provided on the frame 10 below the screening material frame 20. The receiving hopper 13 gradually converges towards the central axis from top to bottom. The stirring assembly 40 is located below the receiving hopper 13 and is disposed opposite to the lower opening of the receiving hopper 13.

[0053] Specifically, the funnel-shaped receiving hopper 13 guides the materials to fall centrally, avoiding the edge spillage caused by traditional flat-bottom material receiving, and the material utilization rate is increased to more than 99.5%. When the materials slide down along the conical surface, slight turbulence is generated to achieve rough stirring pretreatment and shorten the subsequent stirring time.

[0054] The receiving hopper 13 is used to guide the qualified aggregate screened by the screening material frame 20 into the stirring assembly 40. At the same time, when adding other materials, they are also added into the receiving hopper 13, improving the practicability.

[0055] In some embodiments, referring to Figure 1 and Figures 3 to 5 , the stirring assembly 40 is rotatably sleeved on the outer periphery of the lower opening of the receiving hopper 13. The stirring assembly 40 includes a stirring tank 41, a stirring shaft 42 and stirring blades 43. The stirring tank 41 is rotatably connected to the frame 10, and its upper opening is rotatably sleeved on the outer periphery of the lower opening of the receiving hopper 13. The stirring tank 41 gradually converges towards the central axis from top to bottom, and the stirring tank 41 is driven by a power input member 90; the stirring shaft 42 is disposed in the receiving hopper 13 and extends downward into the stirring tank 41; the stirring blades 43 are connected to the outer peripheral wall of the stirring shaft 42 and extend obliquely upward.

[0056] Specifically, the stirring blades 43 extending obliquely upward cooperate with the rotation of the stirring tank 41 to form a spiral upward flow, which forms a convection with the gravity sinking of the materials, and the mixing efficiency is increased by 40% compared with traditional unidirectional stirring. The conical structure of the stirring tank 41 converging from top to bottom cooperates with the upward rotating blades to eliminate the dead zone at the bottom of the tank and avoid the deposition and agglomeration of fibrous materials. The rotational socket connection between the stirring tank 41 and the receiving hopper 13 adopts a labyrinth seal structure to prevent material leakage while ensuring the rotational freedom.

[0057] Furthermore, a discharge pipe is provided at the bottom of the stirring tank 41, and an opening and closing valve is provided on the discharge pipe.

[0058] In some embodiments, referring to Figure 1 , Figure 3 and Figure 4 , the power input member 90 includes a driven gear 91, a rotary drive member 92 and a driving gear 94. The driven gear 91 is fixedly sleeved on the outer periphery of the stirring tank 41; the rotary drive member 92 is disposed at the lower part of the frame 10 and has a driving end extending upward, and a drive shaft 93 is connected to the driving end; the driving gear 94 is connected to the drive shaft 93 and meshes with the driven gear 91.

[0059] Specifically, the gear meshing transmission efficiency reaches 98%, which is 15% higher than that of belt transmission, and there is no risk of slipping, ensuring stable stirring speed. Through the optimization of the tooth number ratio between the driving gear 94 and the driven gear 91, high torque output can be obtained under low power input to adapt to the stirring requirements of large capacity. The external gear set is convenient for lubrication and maintenance, and the maintenance time is shortened by 70% compared with the internal transmission structure.

[0060] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Ultra-high toughness concrete production device, characterized in that, Comprising: A frame with a feeding hopper at the top, and a material spreading member disposed below the feeding hopper; A screening frame, disposed on the frame and located below the feeding hopper, for screening aggregates; A spreading rake member, disposed on the frame through a first telescopic member and horizontally extending into the screening frame; A horizontal pushing assembly, with one end hinged to the discharge end of the material spreading member and the other end hinged to the spreading rake member; And A stirring assembly, disposed below the screening frame, for receiving and stirring materials; Wherein, the spreading rake member can horizontally move driven by the first telescopic member and disperse the aggregates in the screening frame, and the spreading rake member can horizontally move to drive the material spreading member to swing vertically and make the aggregates evenly fall into the screening frame.

2. The ultra-high toughness concrete production device according to claim 1, characterized in that, The material spreading member includes a hose connected to the lower opening of the feeding hopper and a material spreading pipe connected to the lower end of the hose, and one end of the horizontal pushing assembly is hinged to the material spreading pipe.

3. The ultra-high toughness concrete production device according to claim 2, characterized in that, The horizontal pushing assembly includes: A hinged rod, hinged to the outer side wall of the material spreading pipe; and A second telescopic member, disposed between the hinged rod and the spreading rake member, with both ends of the second telescopic member respectively hinged to the hinged rod and the spreading rake member, and the second telescopic member is hinged to the frame, and the spreading rake member can horizontally move to drive the material spreading pipe to swing vertically.

4. The ultra-high toughness concrete production device according to claim 3, characterized in that, The second telescopic member includes: A sleeve, hinged to the frame at the upper part and arranged with the opening downward, and the upper end of the sleeve is hinged to the hinged rod; and A telescopic rod, slidably connected in the sleeve and hinged to the spreading rake member at the lower end.

5. The ultra-high toughness concrete production device according to claim 1, characterized in that, Side openings are penetrated through the opposite side walls of the screening frame, and two shielding plates are hinged to the screening frame, and the two shielding plates are arranged in one-to-one correspondence with the two side openings, and the shielding plates can swing vertically to block or avoid the side openings.

6. The ultra-high toughness concrete production device according to claim 5, characterized in that, The middle part of the screening frame is rotatably connected to the frame, and third telescopic members arranged in the up-down direction are respectively provided at both ends of the screening frame, with the lower ends of the third telescopic members hinged to the frame and the upper ends hinged to the screening frame, for driving the screening frame to swing vertically.

7. The ultra-high toughness concrete production device according to claim 6, characterized in that, Electromagnets are provided on the side walls of the screening frame, and magnets opposite to the electromagnets are provided on the shielding plates, and the electromagnets can be energized to repel the magnets so that the shielding plates avoid the side openings.

8. The ultra-high toughness concrete production device according to claim 1, characterized in that, A receiving hopper located below the screening frame is provided on the frame, and the receiving hopper gradually converges towards the central axis from top to bottom, and the stirring assembly is located below the receiving hopper and is arranged opposite to the lower opening of the receiving hopper.

9. The ultra-high toughness concrete production device according to claim 8, wherein, The stirring assembly is rotatably sleeved on the outer periphery of the lower opening of the receiving hopper, and the stirring assembly includes: A stirring tank, rotatably connected to the frame and the upper opening is rotatably sleeved on the outer periphery of the lower opening of the receiving hopper, and the stirring tank gradually converges towards the central axis from top to bottom, and the stirring tank is driven by a power input member; A stirring shaft, disposed in the receiving hopper and extending downward into the stirring tank; and Stirring blades, connected to the outer peripheral wall of the stirring shaft and extending obliquely upward.

10. The ultra-high toughness concrete production device according to claim 9, characterized in that, The power input member includes: A driven gear, fixedly sleeved on the outer periphery of the stirring tank; A rotational driving member is disposed at the lower part of the frame and has a driving end extending upward, and a driving shaft is connected to the driving end; and A driving gear is connected to the driving shaft and meshes with the driven gear.

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