Evaporator for measuring water content of aggregate in concrete mixture

Abstract

The utility model discloses a kind of evaporating devices for concrete mix proportion aggregate moisture content determination, including base and mixing barrel, wherein, still including support frame and evaporation stirring assembly;The mixing barrel is detachably installed on the base, and the support frame is fixedly installed on the base;The evaporation stirring assembly is slidably installed on the support frame;The evaporation stirring assembly has at least the following two position states;In first position state, the evaporation stirring assembly is inserted into the mixing barrel, and the aggregate in the mixing barrel can be dried and stirred;In second position state, the evaporation stirring assembly is completely located outside the mixing barrel, so as to facilitate the mixing barrel to be removed from the base.The utility model can evaporate the moisture in aggregate quickly, which is conducive to shorten aggregate moisture content determination time.

Description

Technical Field

[0001] This utility model relates to the field of engineering testing technology, specifically to an evaporation device for determining the moisture content of aggregates in concrete mix proportions. Background Technology

[0002] Concrete production requires designing a reasonable concrete mix proportion based on project requirements, including the amount of cement, sand, gravel, water, and the type and dosage of admixtures.

[0003] In the concrete production process, accurate determination of aggregate moisture content is crucial for precise control of concrete mix proportions. Traditional methods for determining aggregate moisture content, such as the drying method, while yielding relatively accurate results, are cumbersome and time-consuming, failing to meet the demands of modern concrete production for rapid testing. At construction sites or small mixing plants, a fast, convenient, and relatively accurate measuring instrument is needed to monitor aggregate moisture content in real time, enabling timely adjustments to the concrete mix proportions and ensuring the stability of concrete quality.

[0004] When determining the moisture content of aggregates, it is necessary to weigh the aggregates before and after the moisture evaporates. Therefore, how to quickly evaporate the moisture in aggregates is one of the important problems that urgently need to be solved in this field. Utility Model Content

[0005] The purpose of this invention is to provide an evaporation device for determining the moisture content of aggregates in concrete mix design, in order to overcome the shortcomings of the prior art. It can quickly evaporate the moisture in the aggregates, which helps to shorten the time for determining the moisture content of aggregates.

[0006] This utility model proposes an evaporation device for determining the moisture content of aggregates in concrete mix proportions, including a base and a mixing tank, which further includes a support frame and an evaporation and mixing assembly; The mixing tank is detachably mounted on the base, and the support frame is fixedly mounted on the base; The evaporation stirring assembly is slidably mounted on the support frame; the evaporation stirring assembly has at least the following two position states; In the first position state, the evaporation and stirring assembly extends into the stirring tank, which can dry and stir the aggregate in the stirring tank; In the second position, the evaporation stirring assembly is completely outside the stirring tank, so that the stirring tank can be removed from the base.

[0007] The evaporation device for determining the moisture content of aggregates in concrete mix design as described above may optionally include an auxiliary mixing assembly and an auxiliary drive component. The auxiliary stirring component is disposed inside the stirring tank, and the auxiliary stirring component is rotatably and sealingly connected to the bottom plate of the stirring tank; The auxiliary drive component is mounted on the base, and the drive shaft of the auxiliary drive component is detachably connected to the rotating shaft of the auxiliary stirring assembly.

[0008] The evaporation device for determining the moisture content of aggregates in concrete mix design as described above, wherein, optionally, the auxiliary mixing assembly includes an auxiliary mixing shaft, an auxiliary mixing rod, a bearing, and a seal; The auxiliary stirring shaft is rotatably connected to the bottom plate of the stirring tank via the bearing; The sealing element is disposed between the auxiliary stirring shaft and the bottom plate of the stirring tank, and the sealing element and the auxiliary stirring shaft are slidably sealed together. The auxiliary stirring rod is fixedly connected to the auxiliary stirring shaft, and the auxiliary stirring rod is located inside the stirring tank.

[0009] The evaporation device for determining the moisture content of aggregates in concrete mix design as described above, wherein, optionally, the support frame includes a vertical rod and a horizontal support rod; The lower ends of both vertical rods are fixedly connected to the base; the two ends of the horizontal support rod are fixedly connected to the upper ends of the two vertical rods respectively. The mixing tank is located below the horizontal support rod; the vertical rod is also provided with a sliding groove; The evaporation stirring assembly is slidably connected to the chute.

[0010] The evaporation device for determining the moisture content of aggregates in concrete mix design as described above, wherein, optionally, the evaporation and stirring assembly includes a cover plate, a main drive component, a slide bar, and a stirring bar; The cover plate is fixedly connected to the slide rod, and the slide rod is slidably connected to the slide groove on the vertical rod; The main drive component is mounted on the cover plate, and the shaft of the main drive component is fixedly connected to the stirring rod.

[0011] The evaporation device for determining the moisture content of aggregates in concrete mix design as described above, wherein, optionally, the stirring rod includes a stirring crossbar, a central rod, and a stirring vertical rod; The central rod is fixedly connected to the output shaft of the main drive component, and their center lines are on the same straight line. The crossbar is vertically and fixedly connected to the central bar; The stirring vertical rod is fixedly installed at the end of the stirring horizontal rod.

[0012] In the evaporation device for determining the moisture content of aggregates in concrete mix design as described above, optionally, the central rod is fixedly connected to the middle of the mixing crossbar. The length of the central rod is greater than the length of the auxiliary stirring rod.

[0013] The evaporation device for determining the moisture content of aggregates in concrete mix design as described above, wherein, optionally, the cover plate is adapted to the mixing tank; The cover plate is connected to the horizontal support rod via a telescopic component; The cover plate has ventilation holes.

[0014] In the evaporation device for determining the moisture content of aggregates in concrete mix design as described above, optionally, an electric heating wire is provided inside the stirring crossbar or the stirring vertical bar.

[0015] The evaporation device for determining the moisture content of aggregates in concrete mix design as described above may optionally include an auxiliary electric heating wire. The auxiliary electric heating wire is disposed in the side wall and / or bottom plate of the mixing tank.

[0016] Compared with the prior art, this utility model sets up an evaporation and stirring component to stir and dry the aggregate in the mixing tank, so that the moisture in the aggregate evaporates quickly. The evaporation and stirring component can improve the speed and uniformity of moisture evaporation. Attached Figure Description

[0017] Figure 1 This is an isometric view of the overall structure of this utility model; Figure 2 This is a partial three-dimensional sectional view of the present invention; Figure 3 This is a disassembled diagram of the evaporation stirring assembly proposed in this utility model; Figure 4 This is a disassembled diagram of the auxiliary stirring component proposed in this utility model; Figure 5 This is a partial cross-sectional view of the connection structure between the auxiliary stirring component and the auxiliary driving component proposed in this utility model.

[0018] Explanation of reference numerals in the attached figures: 1-Base, 2-Mixing tank, 3-Support frame, 4-Evaporation and stirring assembly, 5-Auxiliary stirring assembly, 6-Auxiliary drive component; 21-Base plate; 31-Vertical rod, 32-Horizontal support rod, 33-Slide groove; 41-Cover plate, 42-Main drive component, 43-Slide rod, 44-Stirring rod, 45-Telescopic component; 411 - Vent holes; 441-Stirring crossbar, 442-Center rod, 443-Stirring vertical rod; 51-Auxiliary stirring shaft, 52-Auxiliary stirring rod, 53-Bearing, 54-Seal. Detailed Implementation

[0019] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] To address the problems mentioned in the background art, and to shorten the time for determining the moisture content of concrete aggregates, the existing technology commonly employs drying methods to rapidly evaporate moisture from concrete aggregates. However, this drying process is prone to uneven drying and is relatively slow. Therefore, this invention proposes the following embodiments to solve these problems.

[0021] Please refer to the appendix. Figures 1 to 5 This utility model proposes an evaporation device for determining the moisture content of aggregates in concrete mix proportions, including a base 1, a mixing tank 2, a support frame 3, and an evaporation and mixing assembly 4. The base 1 provides support for the entire structure, the mixing tank 2 is used to hold the aggregates to be dried, and the mixing tank 2 can be a round tank. The support frame 3 supports the evaporation and mixing assembly 4.

[0022] Please refer to Figures 1 to 2 The mixing tank 2 is detachably mounted on the base 1, and the support frame 3 is fixedly mounted on the base 1. In some implementations, the mixing tank 2 can be fixed to the base 1 by means of snap-fit, bolt connection, etc. The key is to ensure that the mixing tank 2 does not shake during the drying process. In practical applications, to ensure the position of the mixing tank 2 and the stability of the support frame 3, a limiting groove for placing the mixing tank 2 can be provided on the base 1.

[0023] The evaporation stirring assembly 4 is slidably mounted on the support frame 3; the evaporation stirring assembly 4 has at least two of the following positional states: In the first position, the evaporation and stirring component 4 extends into the mixing tank 2, which can dry and stir the aggregate in the mixing tank 2; in the second position, the evaporation and stirring component 4 is completely outside the mixing tank 2, so that the mixing tank 2 can be removed from the base 1.

[0024] When using it, first adjust the evaporation and stirring component 4 to the second position, remove the stirring tank 2 from the base 1, and then put the weighed aggregate into the stirring tank 2; place the stirring tank 2 on the base 1 in the corresponding position; then adjust the evaporation and stirring component 4 to the first position to dry and stir the aggregate in the stirring tank 2. Through stirring, the aggregate in the stirring tank 2 can be dried quickly and evenly.

[0025] In practical use, to further improve the uniformity of aggregate drying, an auxiliary mixing component 5 and an auxiliary drive component 6 are also included. The function of the auxiliary mixing component 5 is to fully mix the aggregate at the bottom of the mixing tank 2. The auxiliary mixing component 5 is installed inside the mixing tank 2, and the auxiliary mixing component 5 is rotatably and sealingly connected to the bottom plate 21 of the mixing tank 2.

[0026] The auxiliary drive component 6 is mounted on the base 1, and its drive shaft is detachably connected to the rotating shaft of the auxiliary stirring assembly 5. Specifically, the connection between the drive shaft of the auxiliary drive component 6 and the rotating shaft of the auxiliary stirring assembly 5 can be achieved through a matching non-circular protrusion and groove. For example, the end of the drive shaft of the auxiliary drive component 6 is a square protrusion, while the end of the rotating shaft of the auxiliary stirring assembly 5 is provided with a groove that matches the protrusion. When the two are connected, power can be transmitted, driving the auxiliary stirring assembly 5 through the auxiliary drive component 6. In a specific implementation, the auxiliary drive component 6 can be a motor.

[0027] Please refer to Figure 4 and Figure 5 Regarding the detachable connection between the auxiliary drive component 6 and the auxiliary mixing assembly 5, since the auxiliary mixing assembly 5 is located inside the mixing tank 2 while the auxiliary drive component 6 is located outside the mixing tank 2, ensuring that the aggregate does not fall from the bottom of the mixing tank 2 during the process of removing and placing the mixing tank 2 becomes a new problem. Therefore, this invention further improves the installation relationship between the auxiliary mixing assembly 5 and the mixing tank 2. Specifically, the auxiliary mixing assembly 5 includes an auxiliary mixing shaft 51, an auxiliary mixing rod 52, a bearing 53, and a seal 54. Specifically, the auxiliary mixing shaft 51 is detachably connected to the auxiliary drive component 6; the auxiliary mixing shaft 51 here is the rotating shaft of the auxiliary mixing assembly 5 mentioned above. The function of the auxiliary mixing rod 52 is to increase the contact surface with the aggregate, so as to fully mix the aggregate during rotation. The function of the seal 54 is to prevent aggregate from entering the connection between the auxiliary mixing shaft 51 and the bearing 53. Specifically, the auxiliary stirring shaft 51 is rotatably connected to the bottom plate 21 of the mixing tank 2 via a bearing 53; a seal 54 is disposed between the auxiliary stirring shaft 51 and the bottom plate 21 of the mixing tank 2, and the seal 54 and the auxiliary stirring shaft 51 are slidably sealed together; the auxiliary stirring rod 52 is fixedly connected to the auxiliary stirring shaft 51, and the auxiliary stirring rod 52 is located inside the mixing tank 2. In actual use, a positioning structure can be provided between the bottom of the mixing tank 2 and the base 1 to ensure stability during operation.

[0028] The lower end of the auxiliary stirring shaft 51 is a square-headed rod, and the upper end of the auxiliary drive component 6 has a groove that fits the square-headed rod. During use, the square-headed rod can be removed from the upper end of the auxiliary drive component 6 to facilitate the placement and removal of the stirring tank 2.

[0029] Please refer to Figures 1 to 3In some implementations, the support frame 3 includes vertical rods 31 and horizontal support rods 32; there can be two vertical rods 31. The lower ends of both vertical rods 31 are fixedly connected to the base 1; the two ends of the horizontal support rods 32 are fixedly connected to the upper ends of the two vertical rods 31 respectively; the stirring tank 2 is located below the horizontal support rods 32; the vertical rods 31 are also provided with sliding grooves 33; the evaporation stirring assembly 4 is slidably connected to the sliding grooves 33. In a specific implementation, the two vertical rods 31 and the horizontal support rods 32 form an inverted U-shaped structure, and the stirring tank 2 is placed between the two vertical rods 31 and directly below the horizontal support rods 32.

[0030] In a specific implementation, the evaporation stirring assembly 4 includes a cover plate 41, a main drive component 42, a slide rod 43, and a stirring rod 44. The shape of the cover plate 41 is adapted to the stirring tank 2, and the cover plate 41 can enter the stirring tank 2. The main drive component 42 can be a motor. Specifically, the cover plate 41 is fixedly connected to the slide rod 43, and the slide rod 43 is slidably connected to the groove 33 on the vertical rod 31. In a specific implementation, the groove 33 is located inside the vertical rod 31, and there can be two slide rods 43. Both slide rods 43 are configured such that one end is fixedly connected to the cover plate 41, and the other end is slidably connected to the groove 33.

[0031] The main drive unit 42 is mounted on the cover plate 41, and the rotating shaft of the main drive unit 42 is fixedly connected to the stirring rod 44. Specifically, the outer shell of the main drive unit 42 is fixedly connected to the cover plate 41. That is, the stirring rod 44 is driven to rotate by the main drive unit 42.

[0032] Please refer to Figures 1 to 3 To achieve thorough mixing, the stirring rod 44 was further designed. Specifically, the stirring rod 44 includes a horizontal stirring rod 441, a central rod 442, and a vertical stirring rod 443. The number of horizontal stirring rods 441 can be multiple, such as three or four, while the number of central rods 442 is one. The central rod 442 provides support for the horizontal stirring rod 441 and the vertical stirring rod 443, forming multiple shear surfaces to improve the mixing effect. Specifically, the central rod 442 is fixedly connected to the output shaft of the main drive component 42, and their center lines are on the same straight line; the horizontal rod is vertically fixedly connected to the central rod 442; and the vertical stirring rod 443 is fixedly disposed at the end of the horizontal stirring rod 441.

[0033] To further improve the uniformity of mixing, the central rod 442 is fixedly connected to the middle of the mixing crossbar 441; the length of the central rod 442 is greater than the length of the auxiliary mixing rod 52. Specifically, the mixing vertical rod 443 extends vertically downward to the position of the auxiliary mixing rod 52. In this way, the aggregate can be further thoroughly mixed during mixing.

[0034] In some implementations, the cover plate 41 is adapted to the mixing tank 2; the cover plate 41 is connected to the horizontal support rod 32 via a telescopic member 45; and the cover plate 41 is provided with vent holes 411. The vent holes 411 on the cover plate 41 allow the evaporated moisture to escape from the vent holes 411, thereby accelerating the drying process.

[0035] In practical implementation, an electric heating wire is installed inside the stirring crossbar 441 or the stirring vertical bar 443. Specifically, heating the stirring crossbar 441 with the electric heating wire helps to heat the aggregate in the middle position as well, which is beneficial for rapid and uniform drying. For those skilled in the art, the circuit connection of the electric heating wire is a conventional technical means and will not be described in detail here.

[0036] In some implementations, an auxiliary electric heating wire is included to further improve the heating effect; the auxiliary electric heating wire is disposed within the side wall and / or bottom plate 21 of the mixing tank 2. That is, the auxiliary electric heating wire may be disposed only within the bottom plate 21, or within the side wall, or both on the side wall and at the bottom, to improve drying efficiency. For the circuit of the auxiliary electric heating wire, a wire with a plug can be directly led out, or a connector that can connect to the base 1 can be provided at the bottom of the mixing tank 2. That is, communication with an external power source is achieved through a wire disposed within the base 1. This is prior art to those skilled in the art and can be implemented by them, so it will not be elaborated further here.

[0037] The basic principles of this utility model have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this utility model are merely examples and not limitations, and should not be considered as essential features of each embodiment of this utility model. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the utility model from being implemented using the aforementioned specific details.

[0038] The block diagrams of the devices, apparatuses, equipment, and systems involved in this utility model are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0039] Additionally, as used herein, the "or" used in a list of items beginning with "at least one" indicates a separate list, such that a list of, for example, "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not imply that the described example is preferred or better than other examples.

[0040] It should also be noted that in the system and method of this utility model, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this utility model.

[0041] Various changes, substitutions, and modifications can be made to the technology described herein without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of this utility model is not limited to the specific aspects of the processes, machines, manufacturing processes, events, means, methods, and actions described above. Currently existing or later-developed processes, machines, manufacturing processes, events, means, methods, or actions that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein can be utilized. Therefore, the appended claims include such processes, machines, manufacturing processes, events, means, methods, or actions within their scope.

[0042] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present invention. Therefore, the present invention is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features disclosed herein.

[0043] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present invention to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations therein.

Claims

1. An evaporation device for determining the moisture content of aggregates in concrete mix design, comprising a base (1) and a mixing tank (2), characterized in that, It also includes a support frame (3) and an evaporation stirring assembly (4); The mixing tank (2) is detachably mounted on the base (1), and the support frame (3) is fixedly mounted on the base (1); The evaporation stirring assembly (4) is slidably mounted on the support frame (3); the evaporation stirring assembly (4) has at least the following two position states; In the first position state, the evaporation stirring assembly (4) extends into the stirring tank (2) and can dry and stir the aggregate in the stirring tank (2); In the second position, the evaporation stirring assembly (4) is completely outside the stirring tank (2) so that the stirring tank (2) can be removed from the base (1).

2. The evaporation device for determining the moisture content of aggregates in concrete mix design according to claim 1, characterized in that, It also includes an auxiliary stirring component (5) and an auxiliary driving component (6); The auxiliary stirring component (5) is disposed inside the stirring tank (2), and the auxiliary stirring component (5) is rotatably and sealingly connected to the bottom plate (21) of the stirring tank (2); The auxiliary drive component (6) is mounted on the base (1), and the drive shaft of the auxiliary drive component (6) is detachably connected to the rotating shaft of the auxiliary stirring assembly (5).

3. The evaporation device for determining the moisture content of aggregates in concrete mix design according to claim 2, characterized in that, The auxiliary stirring assembly (5) includes an auxiliary stirring shaft (51), an auxiliary stirring rod (52), a bearing (53), and a seal (54). The auxiliary stirring shaft (51) is rotatably connected to the bottom plate (21) of the stirring tank (2) via the bearing (53); The sealing element (54) is disposed between the auxiliary stirring shaft (51) and the bottom plate (21) of the stirring tank (2), and the sealing element (54) and the auxiliary stirring shaft (51) are slidably sealed together. The auxiliary stirring rod (52) is fixedly connected to the auxiliary stirring shaft (51), and the auxiliary stirring rod (52) is located inside the stirring tank (2).

4. The evaporation device for determining the moisture content of aggregates in concrete mix design according to claim 3, characterized in that, The support frame (3) includes a vertical rod (31) and a horizontal support rod (32); The lower ends of both vertical rods (31) are fixedly connected to the base (1); the two ends of the horizontal support rod (32) are fixedly connected to the upper ends of the two vertical rods (31) respectively. The mixing tank (2) is located below the horizontal support rod (32); the vertical rod (31) is also provided with a sliding groove (33); The evaporation stirring assembly (4) is slidably connected to the chute (33).

5. The evaporation device for determining the moisture content of aggregates in concrete mix design according to claim 4, characterized in that, The evaporation stirring assembly (4) includes a cover plate (41), a main drive component (42), a slide bar (43), and a stirring rod (44). The cover plate (41) is fixedly connected to the slide rod (43), and the slide rod (43) is slidably connected to the slide groove (33) on the vertical rod (31); The main drive unit (42) is mounted on the cover plate (41), and the shaft of the main drive unit (42) is fixedly connected to the stirring rod (44).

6. The evaporation device for determining the moisture content of aggregates in concrete mix design according to claim 5, characterized in that, The stirring rod (44) includes a stirring crossbar (441), a central rod (442), and a stirring vertical rod (443). The central rod (442) is fixedly connected to the output shaft of the main drive component (42), and their center lines are on the same straight line; The crossbar is vertically and fixedly connected to the central bar (442); The stirring vertical rod (443) is fixedly installed at the end of the stirring horizontal rod (441).

7. The evaporation device for determining the moisture content of aggregates in concrete mix design according to claim 6, characterized in that, The central rod (442) is fixedly connected to the middle part of the stirring crossbar (441); The length of the central rod (442) is greater than the length of the auxiliary stirring rod (52).

8. The evaporation device for determining the moisture content of aggregates in concrete mix design according to claim 6, characterized in that, The cover plate (41) is adapted to the mixing tank (2); The cover plate (41) is connected to the horizontal support rod (32) via a telescopic member (45); The cover plate (41) has ventilation holes (411).

9. The evaporation device for determining the moisture content of aggregates in concrete mix design according to claim 8, characterized in that, An electric heating wire is provided inside the stirring crossbar (441) or the stirring vertical bar (443).

10. The evaporation apparatus for determining the moisture content of aggregates in concrete mix design according to any one of claims 1-9, characterized in that, It also includes an auxiliary electric heating wire; The auxiliary electric heating wire is disposed in the side wall and / or bottom plate (21) of the mixing tank (2).

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