A high toughness concrete pre-mixing device before construction
By using the synergistic effect of mixing and dispersing mechanisms before the construction of high-toughness concrete, the problem of fiber agglomeration was solved, achieving a highly efficient premixing effect and improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN PROVINCE CONSTR GRP CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-05
AI Technical Summary
Before high-toughness concrete is constructed, fibers tend to agglomerate and are difficult to disperse evenly, resulting in low premixing efficiency.
A premixing device including a stirring mechanism and a dispersing mechanism is adopted. By utilizing components such as a rotating rod, stirring blades, crushing rod and crushing tip, the uniform mixing of fibers and other raw materials is achieved through the synergistic action of the stirring and dispersing mechanisms.
It improves premixing efficiency, ensures thorough mixing of fibers and other raw materials, reduces cleaning difficulty, and improves construction efficiency.
Smart Images
Figure CN224323316U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of concrete construction technology, specifically relating to a premixing device for high-toughness concrete before construction. Background Technology
[0002] High-toughness concrete is a fiber-reinforced cementitious composite material composed of cementitious materials, aggregates, admixtures, and synthetic fibers, mixed with water in a certain proportion, molded, and cured. It possesses high toughness, high crack resistance, and high damage resistance, making it suitable for reinforcing various masonry walls and columns. Before construction, high-toughness concrete requires pre-mixing of all raw materials using mixing equipment for direct use.
[0003] However, during the premixing of concrete raw materials, the fibers (especially long fibers) in the raw materials tend to agglomerate and are difficult to disperse evenly in the slurry. It is necessary to extend the mixing time to disperse the agglomerated fibers, which reduces the efficiency of premixing. In this regard, this application proposes a premixing device for high-toughness concrete before construction. Utility Model Content
[0004] The purpose of this invention is to provide a premixing device for high-toughness concrete before construction in order to solve the above-mentioned problems.
[0005] This utility model achieves the above objectives through the following technical solutions:
[0006] A premixing device for high-toughness concrete before construction includes a premixing box, a mixing mechanism and a dispersing mechanism installed in the premixing box. The mixing mechanism includes a rotating rod that rotates coaxially inside the premixing box and a mixing blade fixed on the outer wall of the bottom end of the rotating rod. The dispersing mechanism includes a fixing ring fixed on the outer wall of the top end of the rotating rod, a plurality of breaking rods arranged in a circumferential array on the outer wall of the fixing ring, and a surrounding rod fixed on the top of the breaking rod at the end away from the fixing ring. A plurality of breaking sharp pieces are fixed on both sides of the breaking rod.
[0007] The top of the premixing box is fixedly provided with a first feed hopper located above the crushing rod, and the top of the inner wall of the premixing box is fixedly provided with a baffle located in the dispersing mechanism.
[0008] As a further optimization of this utility model, a number of support legs are fixedly provided at the bottom edge of the premix box, and casters are fixedly installed at the bottom end of the support legs.
[0009] As a further optimization of this utility model, a second feed hopper is fixedly provided at the top edge of the premix box, and a discharge pipe is fixedly provided at the bottom of the premix box, with a valve inside the discharge pipe.
[0010] As a further optimization of this utility model, a motor for driving the rotating rod to rotate is fixedly provided on the top of the premixing box.
[0011] As a further optimization of this utility model, the baffle is located above both the breaking rod and the fixing ring, and the baffle is located between the rotating rod and the surrounding rod.
[0012] As a further optimization of this utility model, a connecting rod is fixedly provided on one side of the rotating rod, and a scraper that abuts against the inner wall of the premixing box is fixedly provided on one side of the connecting rod.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The first feed hopper can feed raw materials such as fibers and sand into the premixing box. After the stirring mechanism is running, it will drive the dispersing mechanism to rotate. The rotating crushing rod and crushing tip will crush small-volume fiber clumps and other raw materials. When encountering large-volume fiber clumps and other raw materials, the crushing rod and the surrounding rod will lift and drive the clump of raw materials to rotate like a net, so that the clump of raw materials will collide with the fixed baffle and be crushed. By crushing the clump of raw materials, the raw materials can be dispersed, so that the raw materials can be mixed more fully and faster, thereby improving the premixing efficiency.
[0015] 2. Driven by a motor, it can rotate the mixing blades to mix the various raw materials of concrete, rotate the dispersing mechanism to crush and disperse the raw materials, and rotate the scraper to scrape off the raw materials adhering to the inner wall of the premix box, reducing the difficulty of cleaning the premix box later, making it convenient and practical. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram showing the connection of the premix box, discharge pipe and support legs of this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the premix box of this utility model;
[0019] Figure 4 This is a utility model Figure 3 Enlarged view of the A-structure.
[0020] In the diagram: 1. Premixing tank; 11. First feed hopper; 12. Second feed hopper; 13. Discharge pipe; 14. Support leg; 15. Caster wheel; 2. Rotating rod; 21. Mixing blade; 22. Motor; 23. Connecting rod; 24. Scraper; 3. Fixing ring; 31. Crushing rod; 32. Crushed sharp piece; 33. Enclosure rod; 34. Baffle. Detailed Implementation
[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0022] Example
[0023] like Figure 1-4 As shown, a premixing device for high-toughness concrete before construction includes a premixing box 1, a mixing mechanism and a dispersing mechanism. Several support legs 14 are fixedly provided at the bottom edge of the premixing box 1, and casters 15 are fixedly installed at the bottom of the support legs 14. The support legs 14 can support and elevate the premixing box 1. By rotating the casters 15, the workers can push the premixing box 1 to move it, thereby transporting the device.
[0024] like Figure 1 and Figure 3 As shown, the mixing mechanism is installed inside the premixing tank 1. The mixing mechanism includes a rotating rod 2 that rotates within the premixing tank 1 and is coaxial with it, and mixing blades 21 that are fixedly installed on the outer wall of the bottom end of the rotating rod 2. A motor 22 for driving the rotating rod 2 to rotate is fixedly installed on the top of the premixing tank 1. The model of the motor 22 can be Y80-355. The top end of the rotating rod 2 is fixedly connected to the bottom of the output end of the motor 22. After the motor 22 runs, it will drive the mixing blades 21 to rotate through the rotating rod 2. The rotation of the mixing blades 21 can mix and blend the various raw materials of the concrete in the premixing tank 1, so that premixing can be carried out before the construction of high-toughness concrete, which is convenient for subsequent direct use.
[0025] like Figure 3 As shown, a connecting rod 23 is fixedly provided on one side of the rotating rod 2, and a scraper 24 is fixedly provided on one side of the connecting rod 23 to abut against the inner wall of the premix box 1. The connecting rod 23 can connect the rotating rod 2 and the scraper 24. The scraper 24 rotates to scrape off the raw materials attached to the inner wall of the premix box 1, reducing the difficulty of cleaning the premix box 1 later.
[0026] like Figure 3-4 As shown, the dispersion mechanism is installed in the premixing box 1. The dispersion mechanism includes a fixed ring 3 fixedly installed on the outer wall of the top of the rotating rod 2, a plurality of crushing rods 31 arranged in a circumferential array on the outer wall of the fixed ring 3, and a surrounding rod 33 fixedly installed on the top of the end of the crushing rod 31 away from the fixed ring 3. A plurality of crushing tips 32 are fixedly installed on both sides of the crushing rod 31. A first feed hopper 11 located above the crushing rods 31 is fixedly installed on the top of the premixing box 1. A baffle 34 located in the dispersion mechanism is fixedly installed on the top of the inner wall of the premixing box 1. The first feed hopper 11 can be used to feed concrete raw materials such as fiber and fine aggregate sand into the dispersion mechanism. The crushing tips 32 are conical in shape.
[0027] The fiber and other raw materials fed into the first feed hopper 11 will fall into the mesh enclosure composed of several crushing rods 31 and surrounding rods 33. At this time, the dispersing mechanism will rotate at high speed with the stirring mechanism. The rotating crushing rods 31 and crushing tips 32 will crush small-volume fiber clumps and damp sand clumps. When encountering large-volume fiber clumps and sand clumps, the crushing rods 31 and surrounding rods 33, like a mesh enclosure, will lift and drive the clump of raw materials to rotate. Under the action of centrifugal force, the clump of raw materials will be thrown towards the crushing tip 32, causing the clump of raw materials to collide with the fixed baffle 34 and be crushed. Some of the crushed clumps of raw materials will fall through the gaps between the crushing rods 31 due to their reduced volume, while some clumps of raw materials that are still relatively large after crushing will be blocked by the baffle 34. At this time, the crushing tips 32 rotating with the crushing rods 31 can cut the bottom of the clump of raw materials, thereby dispersing the raw materials and allowing them to mix more fully and quickly, thus improving the premixing efficiency.
[0028] like Figure 2-4 As shown, the baffle 34 is located above both the crushing rod 31 and the fixing ring 3, and between the rotating rod 2 and the surrounding rod 33. The baffle 34 can block the clumps of raw materials in the dispersion mechanism. A second feed hopper 12 is fixedly provided at the top edge of the premix box 1, and a discharge pipe 13 is fixedly provided at the bottom of the premix box 1. A valve is provided in the discharge pipe 13. The second feed hopper 12 can be used to feed cement and coarse aggregate crushed stone and other high-toughness concrete into the premix box 1, so that the cement will not come into contact with and collide with the dispersion mechanism and splash to generate dust, and the crushed stone will not come into contact with and collide with the dispersion mechanism and damage the dispersion mechanism. The discharge pipe 13 can discharge the premixed raw materials from the device for direct use later.
[0029] It should be noted that, in the use of this high-toughness concrete premixing device, cement and coarse aggregate crushed stone, etc., high-toughness concrete are first fed into the premix box 1 through the second feed hopper 12, and concrete raw materials such as fiber and fine aggregate sand are fed into the dispersion mechanism through the first feed hopper 11. At this time, the fiber and other raw materials fed into the first feed hopper 11 will fall into the netting composed of several crushing rods 31 and surrounding rods 33.
[0030] At the same time, the motor 22 is turned on. After the motor 22 runs, it will drive the stirring blade 21, scraper 24 and dispersing mechanism to rotate. After the crushing rod 31 and crushing tip 32 in the dispersing mechanism rotate, they will crush small-volume fiber clumps and damp sand clumps and other raw materials.
[0031] When encountering large clumps of fiber or sand, the mesh-like crushing rods 31 and surrounding rods 33 lift and rotate the clumps, and under centrifugal force, fling them toward the crushing tip 32. This causes the clumps to collide with the fixed baffle 34 and be crushed. Some of the crushed clumps will fall through the gaps between the crushing rods 31 due to their smaller size, while some clumps that are still relatively large after crushing will be blocked by the baffle 34. At this time, the crushing tip 32, which rotates with the crushing rods 31, can cut the bottom of the clumps, thereby dispersing the materials and allowing them to mix more fully and quickly, thus improving the premixing efficiency.
[0032] The rotating mixing blade 21 can mix the various raw materials of concrete in the premix box 1 to perform premixing, which is convenient for direct use later. The rotating scraper 24 scrapes off the raw materials attached to the inner wall of the premix box 1, reducing the difficulty of cleaning the premix box 1 later.
[0033] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A premixing device for high-toughness concrete before construction, comprising a premixing tank (1), a mixing mechanism and a dispersing mechanism installed in the premixing tank (1), wherein the mixing mechanism comprises a rotating rod (2) rotating coaxially within the premixing tank (1) and mixing blades (21) fixedly disposed on the outer wall of the bottom end of the rotating rod (2), characterized in that: The dispersing mechanism includes a fixed ring (3) fixed on the outer wall of the top of the rotating rod (2), a plurality of breaking rods (31) arranged in a circumferential array on the outer wall of the fixed ring (3), and a surrounding rod (33) fixed on the top of the breaking rod (31) away from the fixed ring (3). A plurality of breaking sharp blocks (32) are fixed on both sides of the breaking rod (31). The top of the premixing box (1) is fixedly provided with a first feed hopper (11) located above the crushing rod (31), and the top of the inner wall of the premixing box (1) is fixedly provided with a baffle (34) located in the dispersing mechanism.
2. The pre-mixing device for high-toughness concrete before construction according to claim 1, characterized in that: The premix box (1) is fixedly provided with several support legs (14) at the bottom edge, and casters (15) are fixedly installed at the bottom end of the support legs (14).
3. The pre-mixing device for high-toughness concrete before construction according to claim 1, characterized in that: The premix box (1) is fixedly provided with a second feed hopper (12) at the top edge, and the premix box (1) is fixedly provided with a discharge pipe (13) at the bottom, and a valve is provided inside the discharge pipe (13).
4. The pre-mixing device for high-toughness concrete before construction according to claim 1, characterized in that: The top of the premix box (1) is fixed with a motor (22) for driving the rotating rod (2) to rotate.
5. The pre-mixing device for high-toughness concrete before construction according to claim 1, characterized in that: The baffle (34) is located above both the breaking rod (31) and the fixing ring (3), and the baffle (34) is located between the rotating rod (2) and the surrounding rod (33).
6. The pre-mixing device for high-toughness concrete before construction according to claim 1, characterized in that: A connecting rod (23) is fixedly provided on one side of the rotating rod (2), and a scraper (24) is fixedly provided on one side of the connecting rod (23) to abut against the inner wall of the premix box (1).