Ultra-high performance concrete material conveying device
By combining conveying blades and mixing rods in the screw conveyor design, the problem of uneven mixing during the conveying of powdery materials for ultra-high performance concrete was solved, achieving efficient material conveying and mixing, and improving production efficiency and concrete quality.
Patent Information
- Application Number
- CN202423282266.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing screw conveyors have limited functionality when conveying ultra-high performance concrete powder materials. They cannot achieve mixing during the conveying process, resulting in increased production time and material agglomeration.
An ultra-high performance concrete material conveying device was designed, which adopts a structure combining spiral conveying blades and a mixing rod. The conveying blades are provided with through holes for material flow, and the screw drives the mixing rod to stir, realizing synchronous stirring of materials during the conveying process. The conveying and stirring efficiency is controlled by adjusting the rotation speed of the drive component.
This achieves efficient mixing of materials during transportation, avoids clumping, improves the uniformity of materials and the efficiency of subsequent water addition and mixing, and ensures the consistency of concrete performance.
Smart Images
Figure CN223547020U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conveying device technology, and in particular to an ultra-high performance concrete material conveying device. Background Technology
[0002] Ultra-High Performance Concrete (UHPC) is a cement-based composite material with extremely superior performance, characterized by high strength, high toughness, and high durability. It has become one of the core choices in the modern construction industry for exploring "lightweight, long life, and adaptability to extreme environments".
[0003] In the production of ultra-high performance concrete, forced mixers are often used for mixing. This means that materials need to be added to the mixer in sequence, and dry mixes such as cement, mineral admixtures, aggregates, and powder additives need to be pre-mixed during the mixing process to avoid clumping and improve the flowability of the materials, thereby improving the quality of the final ultra-high performance concrete product.
[0004] In the process of conveying powdery materials such as cement and powdered admixtures, screw conveyors are often used. However, current screw conveyors only have the function of conveying materials. The materials must go to the mixer to be broken up and mixed. They have a single function and do not include the function of mixing materials, which increases the overall production time of ultra-high performance concrete. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an ultra-high performance concrete material conveying device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An ultra-high performance concrete material conveying device includes: a base, a sleeve, a screw, conveying blades, a feeding hopper, a discharge hopper, and a drive component;
[0008] The first end of the sleeve is installed on the base, and a feeding chamber is sleeved on the side wall of the first end of the sleeve. A discharge chamber is sleeved on the side wall of the second end of the sleeve. The inner cavities of the feeding chamber and the discharge chamber are connected to the inner cavity of the sleeve.
[0009] A screw is coaxially mounted inside the sleeve. One end of the screw extends out of the sleeve and is connected to the drive component. A conveying blade is sleeved on the outer ring of the screw. The conveying blade extends spirally from the first end of the sleeve to the second end of the sleeve along the axis of the screw. Several through holes are opened on the conveying blade, and several stirring rods are provided on the outer wall of the screw. The stirring rods are arranged one by one in the spacer layer of the conveying blade.
[0010] Preferably, the through hole includes a first through hole, a second through hole, and a third curved hole. The first through hole, the second through hole, and the third curved hole are arranged in a circular array about the screw axis, and the distance between the first through hole, the second through hole, the third curved hole and the screw axis gradually increases.
[0011] Preferably, the cross-sections of the first through hole, the second through hole, and the third curved hole are all arc-shaped.
[0012] Preferably, the stirring rods are arranged in a spiral configuration about the screw.
[0013] Preferably, the stirring rod includes an end and a connecting portion between the end and the screw, wherein the width of the end is greater than the width of the connecting portion.
[0014] Preferably, the base includes a base frame, a lifting support bar, a load-bearing bar, and a mounting bar;
[0015] Two load-bearing rods are arranged in a front-to-back position, and the load-bearing rods and the base frame are arranged vertically. The lifting support rod is used to connect the load-bearing rods and the base frame. The load-bearing rods arranged in the front and back positions are respectively hinged to the front and rear ends of the installation rod. The sleeve and feeding chamber are installed on the installation rod.
[0016] Preferably, the feeding chamber includes an end cap, an interface end, and a receiving section. The receiving section adopts a wide-mouth structure. The small port of the receiving section connects to the inner cavity of the sleeve. An end cap is installed on one side of the large port of the receiving section, and an interface end is provided on the other side of the large port of the receiving section.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] The ultra-high performance concrete material conveying device proposed in this utility model has several through holes on the side wall of the conveying blades during the material conveying process. As the conveying blades push the material from the first end to the second end, some material will flow through the through holes from the original conveying blade interval to the adjacent conveying blade interval, allowing the overall material to flow in the reverse direction in the inner cavity of the sleeve. In addition, the screw synchronously drives several stirring rods to rotate, and the stirring rods will stir the material in the inner cavity of the sleeve, further improving the flowability of the material, so that the material can be efficiently stirred simultaneously during the conveying process.
[0019] It should be noted that, according to actual operational needs, operators can adjust the rotation speed of the drive component 7 to change the material conveying and mixing efficiency of the device. This ensures uniform material dispersion, prevents clumping, and improves the efficiency of subsequent water addition and mixing, as well as the consistency of concrete performance. Attached Figure Description
[0020] To illustrate the technical solutions in the embodiments of this utility model or the prior art more specifically and intuitively, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0021] Figure 1 This is a schematic diagram of the structure of the ultra-high performance concrete material conveying device proposed in this utility model. Figure 1 ;
[0022] Figure 2 This is a schematic diagram of the structure of the ultra-high performance concrete material conveying device proposed in this utility model. Figure 2 ;
[0023] Figure 3 This is an enlarged schematic diagram of structure A proposed in this utility model.
[0024] In the diagram: Base 1, Base frame 11, Lifting support bar 12, Bearing rod 13, Mounting rod 14, Sleeve 2, Screw 3, Conveying blade 4, Feeding chamber 5, End cover 51, Interface end 52, Receiving part 53, Discharge chamber 6, Driving component 7, Stirring rod 8, End 81, Connecting part 82, Through hole 9, First through hole 91, Second through hole 92, Third curved hole 93. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] Reference Figure 1 An ultra-high performance concrete material conveying device includes: a base 1, a sleeve 2, a screw 3, conveying blades 4, a feeding chamber 5, a discharge chamber 6, and a driving component 7.
[0027] exist Figure 1 In the example shown, the first end of the sleeve 2 is mounted on the base 1, and a feeding chamber 5 is sleeved on the side wall of the first end of the sleeve 2. The sleeve 2 is located above the base 1, and the feeding chamber 5 is located above the sleeve 2. The second end of the sleeve 2 extends away from the base 1 for conveying materials to a distance. A discharge port 6 is sleeved on the side wall. The inner cavities of the feeding chamber 5 and the discharge port 6 are both connected to the inner cavity of the sleeve 2. The discharge port 6 is located below the sleeve 2.
[0028] A screw 3 is coaxially and rotatably installed in the inner cavity of the sleeve 2. The two ends of the screw 3 are rotatably connected to the side walls of the two ends of the sleeve 2, and one end of the screw 3 extends out of the sleeve 2 and is connected to the drive component 7. The drive component 7 provides driving force to the screw 3. A conveying blade 4 is sleeved on the outer ring of the screw 3. The conveying blade 4 extends from the first end of the sleeve 2 in a spiral form with the axis of the screw 3 to the second end of the sleeve 2. Several through holes 9 are opened on the conveying blade 4, and several stirring rods 8 are provided on the outer wall of the screw 3. The stirring rods 8 are arranged one-to-one in the spacer layer of the conveying blade 4.
[0029] The ultra-high performance concrete material conveying device proposed in this utility model, in actual use, feeds material from the feeding hopper 5 into the inner cavity of the first end of the sleeve 2. The drive component 7 drives the screw 3 to rotate within the inner cavity of the sleeve 2, causing the conveying blades 4 to rotate spirally, providing thrust to the material and thus moving it from the first end to the second end within the inner cavity of the sleeve 2, achieving the effect of flowing out from the discharge hopper 6. Simultaneously, during this material conveying process, since several through holes 9 are provided on the side wall of the conveying blades 4, as the conveying blades 4 push the material from the first end to the second end, some material flows through the through holes 9 from the original space between the conveying blades 4 to the space between adjacent conveying blades 4, and the flow direction is towards the first end, allowing the overall material to flow in the inner cavity of the sleeve 2. In addition, the screw 3 simultaneously drives several stirring rods 8 to rotate, which stir the material in the inner cavity of the sleeve 2 and further improve the flowability of the material, allowing the material to be efficiently stirred simultaneously during the conveying process.
[0030] It should be noted that, according to actual operational needs, operators can adjust the rotation speed of the drive component 7 to change the material conveying and mixing efficiency of the device. This ensures uniform material dispersion, prevents clumping, and improves the efficiency of subsequent water addition and mixing, as well as the consistency of concrete performance.
[0031] exist Figure 3 In the example shown, the through hole 9 includes a first through hole 91, a second through hole 92, and a third curved hole 93. The first through hole 91, the second through hole 92, and the third curved hole 93 are arranged in a circular array about the axis of the screw 3, and the distance between the first through hole 91, the second through hole 92, and the third curved hole 93 and the axis of the screw 3 gradually increases. This allows the through holes 9 in the interlayer of the single conveying blade 4 to be evenly distributed on the side wall of the conveying blade 4, improving the balance of the device in material handling and improving the mixing effect.
[0032] Meanwhile, in order to improve the compatibility between the first through hole 91, the second through hole 92, the third curved hole 93 and the conveying blade 4, the cross-sections of the first through hole 91, the second through hole 92, and the third curved hole 93 are all designed with an arc-shaped structure, and the center lines of the first through hole 91, the second through hole 92, and the third curved hole 93 are all coincident with the center line of the screw 3.
[0033] Correspondingly, the plurality of stirring rods 8 are arranged in a spiral configuration about the screw 3, so that the distribution of the plurality of stirring rods 8 is adapted to the overall structure of the conveying blades 4. Figure 2 In the example shown, the stirring rods 8 are arranged in three directions, and the included angle between the centers of adjacent stirring rods 8 is 60°.
[0034] Meanwhile, in this embodiment, the stirring rod 8 includes an end 81 and a connecting part 82 that connects the end 81 and the screw 3. The width of the end 81 is greater than the width of the connecting part 82. During the stirring process of the stirring rod 8, the end 81 squeezes the material, and on the basis of the narrower connecting part 82, the material can diffuse from all sides of the end 81, increasing the material diffusion efficiency.
[0035] In addition, refer to Figure 2 The base 1 includes a base frame 11, a lifting support bar 12, a bearing bar 13, and a mounting bar 14;
[0036] The two bearing rods 13 are arranged in a front-to-back position, and the bearing rods 13 and the base frame 11 are arranged vertically. The lifting support bar 12 is used to connect the bearing rods 13 and the base frame 11. The bearing rods 13 arranged in a front-to-back position are respectively hinged to the front and rear ends of the mounting rod 14. The sleeve 2 and the feeding chamber 5 are installed on the mounting rod 14.
[0037] By adjusting the corresponding lifting support bar 12, the height of the front and rear ends of the mounting rod 14 can be adjusted to meet different material output heights. By making the front and rear ends of the mounting rod 14 present different heights, the sleeve 2 is arranged in an inclined state, allowing the material to flow in the sleeve 2 according to its own gravity towards the first or second end of the sleeve 2, thereby accelerating or slowing down the material output efficiency, and thus controlling the material mixing time and mixing efficiency.
[0038] Specifically, when the first end of the sleeve 2 is higher than the second end, the material flows towards the second end of the sleeve 2 according to its own gravity. The material will flow towards the second end through the through hole 9. Based on the output efficiency of the device in this application, the flow efficiency of the material through the through hole 9 also needs to be increased.
[0039] When the first end of the sleeve 2 is lower than the height of the second end, the material flows towards the first end of the sleeve 2 according to its own gravity. The material will flow towards the first end through the through hole 9. Based on the output efficiency of the device in this application, the flow efficiency of the material through the through hole 9 is also reduced, which increases the storage time of the material in the sleeve 2, thereby increasing the stirring time of the material.
[0040] In addition, refer to Figure 2 The feeding chamber 5 includes an end cap 51, an interface end 52, and a receiving section 53. The receiving section 53 adopts a wide-mouth structure. The small port of the receiving section 53 connects to the inner cavity of the sleeve 2. An end cap 51 is installed on one side of the large port of the receiving section 53, and an extended interface end 52 is provided on the other side of the large port of the receiving section 53. The extended interface end 52 increases the buffer space during the material feeding process, and the end cap 51 covers the material to prevent the overflow problem.
[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A high-performance concrete material conveying device, characterized in that, include: Base (1), sleeve (2), screw (3), conveying blade (4), feeding chamber (5), discharge chamber (6), driving component (7); The first end of the sleeve (2) is installed on the base (1), and the side wall of the first end of the sleeve (2) is fitted with a feeding chamber (5), and the side wall of the second end of the sleeve (2) is fitted with a discharge chamber (6). The inner cavities of the feeding chamber (5) and the discharge chamber (6) are connected to the inner cavity of the sleeve (2). The screw (3) is coaxially mounted inside the sleeve (2). One end of the screw (3) extends out of the sleeve (2) and is connected to the drive component (7) for transmission. The outer ring of the screw (3) is fitted with a conveying blade (4). The conveying blade (4) extends from the first end of the sleeve (2) in a spiral form along the axis of the screw (3) to the second end of the sleeve (2). The conveying blade (4) has several through holes (9) and several stirring rods (8) are provided on the outer wall of the screw (3). The stirring rods (8) are arranged one-to-one in the spacer layer of the conveying blade (4).
2. The ultra-high performance concrete material conveying device according to claim 1, characterized in that, The through hole (9) includes a first through hole (91), a second through hole (92), and a third curved hole (93). The first through hole (91), the second through hole (92), and the third curved hole (93) are arranged in a circular array about the axis of the screw (3), and the distance between the first through hole (91), the second through hole (92), the third curved hole (93) and the axis of the screw (3) gradually increases.
3. The ultra-high performance concrete material conveying device according to claim 2, characterized in that, The cross-sections of the first through hole (91), the second through hole (92), and the third curved hole (93) all adopt an arc-shaped structure.
4. The ultra-high performance concrete material conveying device according to claim 1, characterized in that, Several of the stirring rods (8) are arranged in a spiral shape about the screw (3).
5. The ultra-high performance concrete material conveying device according to claim 4, characterized in that, The stirring rod (8) includes an end (81) and a connecting part (82) that connects the end (81) to the screw (3), wherein the width of the end (81) is greater than the width of the connecting part (82).
6. A high-performance concrete material conveying device according to any one of claims 1-5, characterized in that, The base (1) includes a base frame (11), a lifting support bar (12), a bearing bar (13), and a mounting bar (14). The two bearing rods (13) are arranged in a front-to-back position, and the bearing rods (13) and the base frame (11) are arranged in an upper-lower position. The lifting support bar (12) is used to connect the bearing rods (13) and the base frame (11). The bearing rods (13) arranged in a front-to-back position are respectively hinged to the front and rear ends of the mounting rod (14). The sleeve (2) and the feeding chamber (5) are installed on the mounting rod (14).
7. The ultra-high performance concrete material conveying device according to claim 6, characterized in that, The feeding chamber (5) includes an end cap (51), an interface end (52) and a receiving part (53). The receiving part (53) adopts a wide-mouth structure. The small port of the receiving part (53) is connected to the inner cavity of the sleeve (2). An end cap (51) is installed on one side of the large port of the receiving part (53), and an interface end (52) is provided on the other side of the large port of the receiving part (53).