Concrete cementing material double-doping premixing device
By designing a pre-mixing device for double-admixed concrete cementitious materials, the problem of concrete agglomeration in the mixing device was solved by using a partition plate and staggered mixing components, achieving efficient pre-mixing and improving the quality of concrete.
Patent Information
- Application Number
- CN202423079212.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-12
Smart Images
Figure CN223701255U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to concrete construction technical field, especially concrete cementitious material double -doped premixing and device. BACKGROUND
[0002] Concrete is widely used in houses, bridges, roads, tunnels, water conservancy projects and other types of infrastructure construction as a basic building material. With the improvement of environmental awareness and the demand for sustainable development, the performance of concrete needs to be continuously improved and optimized according to the use site, and new types of concrete materials and technologies such as high-performance concrete and green concrete are emerging, promoting the innovative development of the concrete industry. In high-rise buildings, large-span bridges and other projects, high-performance concrete is applied to double-doped technology to improve the strength and durability of concrete. In large-volume concrete such as hydropower station dams and nuclear power plants, double-doped technology is used to control the generation of temperature cracks, and in the production of precast beams, plates and other components, double-doped technology is used to improve the quality and production efficiency of precast components.
[0003] Double-doped technology refers to the addition of two or more admixtures to concrete, which can significantly improve the workability of concrete, reduce construction difficulty, reduce the bleeding and segregation of the mixture, and improve the density and impermeability of concrete. The compressive and flexural strength of concrete is improved, the cement hydration process is optimized, the shrinkage and temperature cracks in the concrete are reduced, the durability of the concrete is enhanced, the cement consumption is reduced, the cost is saved, and the green environmental protection requirements are met.
[0004] When adding admixtures to concrete through double-doped technology, stirring is required. The existing double-doped concrete mixing device usually places all kinds of raw materials in the concrete mixer for stirring without pre-stirring and mixing, and the stirring structure is relatively simple, the stirring effect is general, and the phenomenon of coagulation into blocks may occur, affecting the subsequent use of concrete. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a kind of concrete cementitious material double -doped premixing and device to solve the above-mentioned deficiencies in prior art.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] A kind of concrete cementitious material double -doped premixing and device, including base, still include:
[0008] Stirring box is fixedly installed on the base, the interior of the stirring box is provided with stirring chamber, the stirring chamber is provided with stirring mechanism, and the side of the stirring box is provided with discharge port;
[0009] The feeding box is arranged above the stirring box, a feeding chamber is arranged in the feeding box, the top of the feeding chamber is open, at least one partition plate is arranged in the feeding chamber to divide the feeding chamber into independent feeding cavities, the bottom of each feeding cavity is provided with a feeding port, the top of the stirring box is provided with a feeding channel, the feeding channel is communicated with the feeding port, the bottom of the feeding cavity is provided with a feeding control plate capable of opening or closing the feeding port, the feeding control plate is provided with a weighing element, one side of the feeding box is provided with a driving unit, and the feeding control plate is in transmission connection with the driving unit.
[0010] The mixing mechanism of the concrete cementitious material double-mixed premixing and mixing device comprises a stirring driving assembly and first and second stirring assemblies arranged side by side, and the first and second stirring assemblies are in transmission connection with the stirring driving assembly.
[0011] The mixing chamber of the concrete cementitious material double-mixed premixing and mixing device comprises first and second stirring cavities in communication, the first stirring assembly is located in the first stirring cavity, and the second stirring assembly is located in the second stirring cavity.
[0012] The first stirring assembly of the concrete cementitious material double-mixed premixing and mixing device comprises a first stirring shaft and a plurality of first stirring pieces arranged on the first stirring shaft, the plurality of first stirring pieces are sequentially and spaced apart in the circumferential direction of the first stirring shaft, and the plurality of first stirring pieces are located at different positions in the axial direction of the first stirring shaft.
[0013] The second stirring assembly of the concrete cementitious material double-mixed premixing and mixing device comprises a second stirring shaft and a plurality of second stirring pieces arranged on the second stirring shaft, the plurality of second stirring pieces are sequentially and spaced apart in the circumferential direction of the second stirring shaft, and the plurality of second stirring pieces are located at different positions in the axial direction of the second stirring shaft.
[0014] The first and second stirring pieces of the concrete cementitious material double-mixed premixing and mixing device are arranged in a staggered manner in the axial direction of the first stirring shaft.
[0015] The first and second stirring pieces of the concrete cementitious material double-mixed premixing and mixing device each comprise a stirring blade and a stirring block arranged at the end of the stirring blade, and the mounting directions of the stirring blocks on the first and second stirring pieces are different.
[0016] The concrete cementitious material double-mixed premixing and mixing device, wherein the side surface of the stirring block away from the stirring blade is provided with a plurality of strip-shaped mixing pieces, and the plurality of strip-shaped mixing pieces are sequentially arranged in the length direction of the stirring block.
[0017] The length of the strip-shaped mixing element gradually increases along the length direction of the stirring block.
[0018] The length of the strip-shaped protruding part on each strip-shaped mixing element is different.
[0019] In the above technical solution, the concrete cementitious material double-mixing pre-mixing and stirring device provided by the embodiment comprises a base, a stirring box and a feeding box. The stirring box is internally provided with a stirring chamber, and the stirring chamber is provided with a stirring mechanism. The feeding box is arranged directly above the stirring box, and the feeding box is internally provided with a feeding chamber. The feeding chamber is divided into feeding cavities by at least one partition plate. The top of the stirring box is provided with a feeding channel, and the feeding channel is in communication with a feeding port. The bottom of the feeding cavity is provided with a feeding control plate capable of opening or closing the feeding port. The feeding control plate is provided with a weighing element. In the use process, the raw materials to be pre-mixed are added into the feeding cavity, and the weighing element weighs the raw materials in the feeding cavity, so as to know the weight and ratio of the raw materials to be stirred and mixed. The weighing element is conveyed into the stirring chamber, and the raw materials in the stirring chamber are stirred and mixed by the stirring mechanism. The raw materials after stirring and mixing are conveyed to a concrete mixer from a discharging port. In this way, the raw materials in the concrete double-mixing technology can be pre-stirred. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.
[0021] Figure 1 A perspective view of the concrete cementitious material double-mixing pre-mixing and stirring device provided by the embodiment of the present application;
[0022] Figure 2 A front view of the concrete cementitious material double-mixing pre-mixing and stirring device provided by the embodiment of the present application;
[0023] Figure 3 An internal structure schematic view of the concrete cementitious material double-mixing pre-mixing and stirring device provided by the embodiment of the present application;
[0024] Figure 4 An internal structure schematic view of the stirring box provided by the embodiment of the present application;
[0025] Figure 5 A structure schematic view of the first stirring element provided by another embodiment of the present application.
[0026] Reference Signs List:
[0027] 1, base; 2, stirring box; 21, stirring chamber; 22, first stirring cavity; 23, second stirring cavity; 24, discharge port; 3, stirring mechanism; 31, first stirring assembly; 311, first stirring shaft; 312, first stirring piece; 32, second stirring assembly; 321, second stirring shaft; 322, second stirring piece; 33, stirring blade; 34, stirring block; 35, strip-shaped mixing piece; 36, strip-shaped protruding portion; 37, stirring drive assembly; 4, feeding box; 41, feeding chamber; 411, feeding cavity; 42, partition plate; 43, feeding port; 44, feeding channel; 45, feeding control plate; 46, weighing piece; 47, drive unit. DETAILED DESCRIPTION
[0028] In order for those skilled in the art to better understand the technical scheme of the present application, the present application will be further described in detail below with reference to the drawings.
[0029] As shown in Figures 1-5 the embodiment, a concrete cementitious material double-mixing premixing and device is provided, which comprises a base 1, a stirring box 2 and a feeding box 4. The stirring box 2 is fixedly installed on the base 1. A stirring chamber 21 is arranged inside the stirring box 2. A stirring mechanism 3 is arranged in the stirring chamber 21. A discharge port 24 is arranged on one side of the stirring box 2. The feeding box 4 is arranged directly above the stirring box 2. A feeding chamber 41 is arranged in the feeding box 4. The top of the feeding chamber 41 is open. At least one partition plate 42 is arranged in the feeding chamber 41 to divide the feeding chamber 41 into feeding cavities 411. A feeding port 43 is arranged at the bottom of each feeding cavity 411. A feeding channel 44 is arranged at the top of the stirring box 2. The feeding channel 44 is in communication with the feeding port 43. A feeding control plate 45 capable of opening or closing the feeding port 43 is arranged at the bottom of the feeding cavity 411. A weighing piece 46 is arranged on the feeding control plate 45. A drive unit 47 is arranged on one side of the feeding box 4. The feeding control plate 45 is in transmission connection with the drive unit 47.
[0030] Specifically, the stirring box 2 is fixedly installed on the base 1. The stirring box 2 is used for preliminarily stirring and mixing the double-mixed raw materials. The raw materials stirred can be two, three or more. The stirring chamber 21 is arranged inside the stirring box 2. The stirring mechanism 3 is arranged in the stirring chamber 21. The stirring mechanism 3 can stir and mix the raw materials conveyed into the stirring chamber 21. The discharge port 24 is arranged on one side of the stirring box 2. The discharge port 24 is in communication with the stirring chamber 21. Thus, the mixed material after stirring and mixing can be output from the discharge port 24 to the concrete mixer.
[0031] In the embodiment, the feeding box 4 is arranged above the stirring box 2, and the feeding box 4 is fixedly connected with the stirring box 2. The feeding box 4 is provided with a feeding chamber 41. The feeding chamber 41 is communicated with the stirring chamber 21 through a feeding channel 44. The feeding chamber 41 is provided with a partition plate 42. The partition plate 42 divides the feeding chamber 41 into at least two feeding cavities 411. The number of the partition plate 42 is arranged according to the requirement. For example, when the partition plate 42 is one, the feeding chamber 41 is divided into two feeding cavities 411 by the partition plate 42. The bottom of each feeding cavity 411 is provided with a feeding port 43. The feeding channel 44 is arranged at the top of the stirring box 2. The top of the feeding channel 44 is communicated with the feeding port 43. The bottom of the feeding channel 44 is communicated with the stirring chamber 21. The feeding channel 44 can be one. In this way, each feeding cavity 411 is communicated with one feeding channel 44. The feeding channel 44 can also be consistent with the number of the feeding cavities 411. In this way, the bottom of each feeding cavity 411 is provided with one feeding channel 44.
[0032] In the embodiment, the feeding control plate 45 is arranged at the bottom of each feeding cavity 411. The feeding control plate 45 is provided with a weighing element 46. The weighing element 46 can weigh the weight of the raw materials in each feeding cavity 411. The driving unit 47 is arranged on one side of the feeding box 4. The feeding control plate 45 is drivingly connected with the driving unit 47. The feeding control plate 45 has a closed state and an open state under the driving of the driving unit 47. In the closed state, the feeding control plate 45 closes the feeding port 43. At this time, the raw materials that need to be pre-stirred can be added to the feeding cavity 411. The weighing element 46 weighs the raw materials in the feeding cavity 411. When the raw materials are added to the appropriate weight, the addition of the raw materials to the feeding cavity 411 is stopped. The driving unit 47 drives the feeding control plate 45, so that the feeding control plate 45 is opened to be in the open state. At this time, the feeding port 43 is opened. The raw materials in the feeding cavity 411 are conveyed into the stirring chamber 21 through the feeding channel 44. In this way, the raw materials can be quantitatively added to the stirring chamber 21.
[0033] The embodiment provides a concrete cementitious material double-mixing pre-mixing device, which comprises a base 1, a stirring box 2 and a feeding box 4, a stirring chamber 21 is arranged in the stirring box 2, a stirring mechanism 3 is arranged in the stirring chamber 21, the feeding box 4 is arranged directly above the stirring box 2, a feeding chamber 41 is arranged in the feeding box 4, at least one partition plate 42 is arranged in the feeding chamber 41 to divide the feeding chamber 41 into feeding cavities 411, a feeding channel 44 is arranged at the top of the stirring box 2 and communicates with a feeding opening 43, a feeding control plate 45 capable of opening or closing the feeding opening 43 is arranged at the bottom of the feeding cavity 411, and a weighing part 46 is arranged on the feeding control plate 45. In the use process, raw materials that need to be pre-mixed can be added into the feeding cavities 411, the weighing part 46 weighs the raw materials in the feeding cavities 411, so that the weight and the proportion of the raw materials for stirring and mixing are known, and the weighing part 46 is conveyed into the stirring chamber 21, the raw materials in the stirring chamber 21 are stirred and mixed by the stirring mechanism 3, and the raw materials after stirring and mixing are conveyed to a concrete mixer, so that the raw materials in the concrete double-mixing technology can be pre-stirred.
[0034] In the embodiment of the utility model, preferably, the stirring mechanism 3 includes a stirring driving assembly 37 and first and second stirring assemblies 31 and 32 arranged side by side, the first and second stirring assemblies 31 and 32 are in transmission connection with the stirring driving assembly 37, the stirring chamber 21 includes first and second stirring cavities 22 and 23 in communication, the first stirring assembly 31 is located in the first stirring cavity 22, and the second stirring assembly 32 is located in the second stirring cavity 23. The first and second stirring assemblies 31 and 32 can be driven by the stirring driving assembly 37, so that the first stirring assembly 31 rotates in the first stirring cavity 22 and the second stirring assembly 32 rotates in the second stirring cavity 23, thereby stirring and mixing the raw materials in the stirring chamber 21.
[0035] In the embodiment of the utility model, preferably, the first stirring assembly 31 includes a first stirring shaft 311 and a plurality of first stirring parts 312 arranged on the first stirring shaft 311, the plurality of first stirring parts 312 are sequentially and spaced apart along the circumference of the first stirring shaft 311, and the plurality of first stirring parts 312 are located at different positions along the axis direction of the first stirring shaft 311. For example, there are four first stirring parts 312, the four first stirring parts 312 are spaced apart by 90° along the circumference of the first stirring shaft 311, and the four first stirring parts 312 are sequentially and equally spaced apart along the axis direction of the first stirring shaft 311.
[0036] In the embodiment of the utility model, preferably, the second stirring assembly 32 comprises a second stirring shaft 321 and a plurality of second stirring pieces 322 arranged on the second stirring shaft 321, the plurality of second stirring pieces are arranged in sequence and at intervals along the circumference of the second stirring shaft 321, and the plurality of second stirring pieces 322 are located at different positions along the axis direction of the second stirring shaft 321. For example, the second stirring piece 322 has four, and the four second stirring pieces 322 are arranged at intervals of 90 degrees along the circumference of the second stirring shaft 321, and arranged in sequence and at equal intervals along the axis direction of the second stirring shaft 321. And along the axis direction of the first stirring shaft 311, the first stirring piece 312 and the second stirring piece 322 are arranged in a staggered manner; in this way, the first stirring piece 312 and the second stirring piece 322 will not interfere with each other or collide during the rotation of the first stirring shaft 311 and the second stirring shaft 321.
[0037] In the embodiment of the utility model, preferably, the first stirring piece 312 and the second stirring piece 322 each comprise a stirring blade 33 and a stirring block 34 arranged at the end of the stirring blade 33, the installation direction of the stirring block 34 on each first stirring piece 312 is different, and the installation direction of the stirring block 34 on the second stirring piece 322 is also different; in this way, by arranging stirring blocks 34 in different directions, the raw materials in the stirring chamber 21 can be stirred and mixed from different directions during stirring, and the stirring and mixing effect can be improved.
[0038] In another embodiment of the utility model, preferably, a plurality of strip-shaped mixing members 35 are arranged on the side surface of the stirring block 34 away from the stirring blade 33, the plurality of strip-shaped mixing members 35 are sequentially arranged along the length direction of the stirring block 34, the length of the strip-shaped mixing member 35 increases sequentially along the length direction of the stirring block 34, the strip-shaped protruding part 36 is arranged on each strip-shaped mixing member 35, the length of the strip-shaped protruding part 36 on each strip-shaped mixing member 35 is different, for example, three strip-shaped mixing members 35 are arranged on each stirring block 34, which are a first strip-shaped mixing member 35, a second strip-shaped mixing member 35 and a third strip-shaped mixing member 35, the first strip-shaped mixing member 35, the second strip-shaped mixing member 35 and the third strip-shaped mixing member 35 are sequentially and spacedly arranged along the length direction of the stirring block 34, the length of the first strip-shaped mixing member 35 is less than the length of the second strip-shaped mixing member 35, the length of the second strip-shaped mixing member 35 is less than the length of the third strip-shaped mixing member 35, the strip-shaped protruding part 36 is arranged on the first strip-shaped mixing member 35, the second strip-shaped mixing member 35 and the third strip-shaped mixing member 35, the cross-sectional shape of the strip-shaped protruding part 36 is a regular triangle, so that a strip-shaped pointed end part, when different raw materials are stirred and mixed in the stirring chamber 21, the raw materials may be agglomerated and coagulated into blocks, due to the different rotating directions of the stirring blocks 34, the first strip-shaped mixing member 35, the second strip-shaped mixing member 35 and the third strip-shaped mixing member 35 and the strip-shaped protruding part 36 arranged on the first strip-shaped mixing member 35, the second strip-shaped mixing member 35 and the third strip-shaped mixing member 35 can break the coagulated raw materials.
[0039] The above only describes certain exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled in the art, under the condition of not deviating from the spirit and scope of the utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.
Claims
1. A concrete cementitious material dual-blending pre-mixing apparatus comprising a base, characterized in that, Also include: The stirring box is fixedly installed on the base, and the inside of the stirring box is provided with a stirring chamber, and the stirring chamber is provided with a stirring mechanism, and one side of the stirring box is provided with a discharge port; The feeding box is provided above the stirring box, and the feeding box is provided with a feeding chamber, and the top of the feeding chamber is open, and the feeding chamber is provided with at least one partition plate to separate the feeding chamber into independent feeding cavities, and the bottom of each feeding cavity is provided with a feeding port, and the top of the stirring box is provided with a feeding channel, and the feeding channel is communicated with the feeding port, and the bottom of the feeding cavity is provided with a feeding control plate which can open or close the feeding port, and the feeding control plate is provided with a weighing part, and one side of the feeding box is provided with a driving unit, and the feeding control plate is drivingly connected with the driving unit.
2. The concrete cementitious material dual dosing premixing and apparatus of claim 1, wherein, The stirring mechanism comprises a stirring driving assembly and first and second stirring assemblies arranged side by side, and the first and second stirring assemblies are drivingly connected with the stirring driving assembly.
3. The concrete cementitious material dual dosing premixing and apparatus of claim 2, wherein, The stirring chamber comprises first and second stirring cavities which are communicated, the first stirring assembly is located in the first stirring cavity, and the second stirring assembly is located in the second stirring cavity.
4. The concrete cementitious material dual dosing premixing and apparatus of claim 3, wherein, The first stirring assembly comprises a first stirring shaft and a plurality of first stirring parts arranged on the first stirring shaft, the first stirring parts are arranged in sequence and at intervals in the circumferential direction of the first stirring shaft, and the first stirring parts are located at different positions in the axial direction of the first stirring shaft.
5. The concrete cementitious material dual dosing premixing and apparatus of claim 4, wherein, The second stirring assembly comprises a second stirring shaft and a plurality of second stirring parts arranged on the second stirring shaft, the second stirring parts are arranged in sequence and at intervals in the circumferential direction of the second stirring shaft, and the second stirring parts are located at different positions in the axial direction of the second stirring shaft.
6. The concrete cementitious dual-blend pre-mix and apparatus of claim 5, wherein, The first and second stirring parts are arranged in a staggered manner in the axial direction of the first stirring shaft.
7. The concrete cementitious dual-blend pre-mix and apparatus of claim 6, wherein, The first and second stirring parts each comprise a stirring blade and a stirring block arranged at the end of the stirring blade, and the mounting directions of the stirring blocks on the first and second stirring parts are different.
8. The concrete cementitious dual-blend pre-mix and apparatus of claim 7, wherein, The stirring block is provided with a plurality of strip-shaped mixing parts on the side surface away from the stirring blade, and the strip-shaped mixing parts are arranged in sequence in the length direction of the stirring block.
9. The concrete cementitious dual-blend pre-mix and apparatus of claim 8, wherein, In the length direction of the stirring block, the lengths of the strip-shaped mixing parts increase in sequence.
10. The concrete cementitious dual-blend pre-mix and apparatus of claim 9, wherein, Each of the strip-shaped mixing parts is provided with a strip-shaped protruding part, and the lengths of the strip-shaped protruding parts on the strip-shaped mixing parts are different.