Device for detecting moisture content of fine aggregate

Abstract

The utility model relates to the technical field of detection devices, in particular to a fine aggregate moisture content detection device which comprises a base, a drying oven is arranged on one side of the upper portion of the base, a groove is formed in the base, an electronic balance is arranged in the groove, a first rotating blocking door is arranged on one side of the groove, and a second rotating blocking door is arranged on the other side of the groove. A sealing groove is formed in the inner wall of the bottom surface of the drying oven, a through groove is formed between the sealing groove and the groove, an air guide plate is fixedly arranged on the inner wall of one side above the drying oven, a second rotating blocking door is arranged on one side of the drying oven, and a cooling fan is arranged on the outer wall of the drying oven, so that variables can be reduced, and the detection accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, and more specifically, to a device for detecting the moisture content of fine aggregates. Background Technology

[0002] Fine aggregate refers to granular materials with a diameter of less than 2.36 mm, including sand, crushed stone, and mineral powder. Fine aggregate is commonly used in asphalt mixtures and cement mixtures in road construction. Depending on the specifications, the types of fine aggregate vary, with common examples including marble, granite, and limestone. Fine aggregate acts as a filler in asphalt mixtures, reducing the amount of asphalt needed and improving the economy of the mixture. Simultaneously, fine aggregate increases the density and strength of the mixture, improving its durability and waterproofing performance. By controlling the content and quality of fine aggregate, the physical and mechanical properties of asphalt mixtures can be adjusted to meet the requirements of different environments. During the use of fine aggregate, moisture content testing is necessary to ensure that it meets the usage requirements.

[0003] For example, Chinese patent disclosure: A horizontal moisture content testing device, application number: CN202222027952.5, includes a main body, an instrument display panel, and a connecting pipe. The main body is a column with an axially penetrating channel and a structure that is symmetrical both radially and axially. The connecting pipe is disposed between the instrument display panel and the middle section of the outer wall of the main body. This horizontal moisture content testing device, with its main body being a column with an axially penetrating channel, and its radial and axial symmetry, along with the connecting pipe's placement between the instrument display panel and the middle section of the outer wall of the main body, results in a simple and symmetrical overall structure, uniform mass distribution, and stable operation without shaking, further ensuring the accuracy of the test results.

[0004] However, in the above technical solutions, since fine aggregates are mostly used in the construction industry, in order to ensure the safety of buildings, fine aggregates are mostly tested using the drying method, which has high accuracy and less interference. When conducting drying method testing, the staff needs to first weigh the undried material on an electronic balance, then move the material to an oven for drying, and after drying, move the material back to the electronic balance for weighing. Subsequently, the data is summarized and calculated. During this process, because the material needs to be moved, it is easy to add additional variables, such as the position of the material on the electronic balance before and after, the distribution pattern of the material, etc., which will affect the final weighing results and reduce the accuracy of the test. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The main objective of this invention is to provide a fine aggregate moisture content testing device, which can effectively solve the problem in the background art where fine aggregates are mostly used in the construction industry. To ensure the safety of buildings, fine aggregates are often tested using a high-precision, low-interference drying method. In the drying method, the operator first needs to weigh the undried material on an electronic balance, then move the material to an oven for drying, and after drying, move the material back to the electronic balance for weighing. The data is then summarized and calculated. During this process, the need to move the material easily introduces additional variables, such as the position of the material on the electronic balance before and after, and the distribution pattern of the material, all of which affect the final weighing result and reduce the accuracy of the test.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A fine aggregate moisture content testing device includes a base, an oven disposed on one side above the base, a groove on the base, an electronic balance disposed in the groove, a first rotating baffle on one side of the groove, a sealing groove on the inner wall of the bottom surface of the oven, a through groove between the sealing groove and the groove, an air guide plate fixedly disposed on the inner wall of one side above the oven, a second rotating baffle on one side of the oven, and a cooling fan disposed on the outer wall of the oven.

[0010] Preferably, the through groove is interconnected with the groove and the sealing groove.

[0011] Preferably, the electronic balance includes a balance body, a weighing pan on the balance body, a heat insulation plate on one side above the weighing pan, a plurality of guide grooves on the outer wall below the heat insulation plate, a guide column movably disposed in the guide groove, a first sensor fixedly disposed on the outer wall above the guide column, and a second sensor disposed on one side above the first sensor.

[0012] Preferably, a fixed tray is provided on one side below the main body of the balance, and multiple slide rails are fixedly provided on the outer wall of one side below the fixed tray, and several hydraulic rods are fixedly provided on the outer wall of one side below the multiple slide rails.

[0013] Preferably, the weighing pan is located in the through groove, and the horizontal axis of the outer wall of the top surface of the heat insulation plate is higher than the horizontal axis of the inner wall of the bottom surface of the oven.

[0014] Preferably, the guide slide is fixedly connected to the weighing pan, and the second sensor is fixedly connected to the inner wall of the guide slide groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) When using this utility model, firstly, the weight of the empty material tray is weighed using the main body of the balance. Then, the material is poured into the material tray, and the total weight of the material tray is weighed. Then, the heat insulation plate is placed into the sealing groove. The heat insulation plate and the sealing groove are used to seal and insulate the inner wall of the bottom surface of the oven. Then, the material in the material tray is dried through the oven. After drying, the cooling fan is started to accelerate the cooling of the temperature in the inner cavity of the oven. After the temperature is reduced, the horizontal axis of the outer wall of the top surface of the heat insulation plate is raised above the horizontal axis of the inner wall of the bottom surface of the oven. Then, the total weight of the dried material tray can be weighed. The data is then processed and calculated to obtain the moisture content. During the weighing process, there is no need to move the material tray back and forth, thereby reducing variables and improving the accuracy of detection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a fine aggregate moisture content detection device according to the present invention;

[0018] Figure 2 This utility model relates to a fine aggregate moisture content detection device. Figure 1 A partially enlarged structural diagram;

[0019] Figure 3 This is a front view structural diagram of a fine aggregate moisture content detection device according to the present invention;

[0020] Figure 4 This is a cross-sectional three-dimensional structural diagram of the electronic balance in the fine aggregate moisture content detection device of this utility model.

[0021] Figure 5 This utility model relates to a fine aggregate moisture content detection device. Figure 4 A partially enlarged structural diagram.

[0022] In the diagram: 1. Base; 2. Oven; 3. Groove; 4. Electronic balance; 401. Balance body; 402. Weighing pan; 403. Heat insulation plate; 404. Guide slide; 405. Guide slide column; 406. First sensor; 407. Second sensor; 408. Fixed tray; 409. Multi-section slide rail; 4010. Hydraulic rod; 5. First rotating gate; 6. Sealing groove; 7. Through groove; 8. Air guide plate; 9. Second rotating gate; 10. Cooling fan. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0024] like Figures 1 to 3 As shown, a fine aggregate moisture content detection device includes a base 1, an oven 2 is arranged on one side above the base 1, a groove 3 is provided on the base 1, an electronic balance 4 is arranged in the groove 3, a first rotating baffle 5 is provided on one side of the groove 3, a sealing groove 6 is provided on the inner wall of the bottom surface of the oven 2, a through groove 7 is provided between the sealing groove 6 and the groove 3, an air guide plate 8 is fixedly arranged on the inner wall of one side above the oven 2, a second rotating baffle 9 is provided on one side of the oven 2, and a cooling fan 10 is provided on the outer wall of the oven 2.

[0025] like Figure 4 and Figure 5 As shown, in another embodiment of the present invention, the electronic balance 4 includes a balance body 401, a weighing pan 402 is provided on the balance body 401, a heat insulation plate 403 is provided on one side above the weighing pan 402, a plurality of guide grooves 404 are provided on the outer wall below the heat insulation plate 403, a guide column 405 is movably provided in the guide grooves 404, a first sensor 406 is fixedly provided on the outer wall above the guide column 405, and a second sensor 407 is provided on one side above the first sensor 406.

[0026] A fixed tray 408 is provided on one side below the main body of the balance 401. Multiple slide rails 409 are fixedly installed on the outer wall of one side below the fixed tray 408. Several hydraulic rods 4010 are fixedly installed on the outer wall of one side below the slide rails 409. When moisture content testing is required, the main body of the balance 401 is first activated. Then, an empty material tray is placed on the heat insulation plate 403, and the weight of the empty material tray is measured. Next, the material is poured into the material tray, and the total weight of the material tray is measured. Then, the hydraulic rods 4010 are activated. The hydraulic rod 4010 moves the multi-section slide rail 409 downwards, which in turn moves the fixed tray 408. The fixed tray 408 then moves the balance body 401, which in turn moves the weighing pan 402. The heat insulation plate 403 then moves with the weighing pan 402 under the influence of gravity, allowing it to enter the sealing groove 6. The heat insulation plate 403 and the sealing groove 6 seal and insulate the inner wall of the bottom surface of the oven 2, thereby preventing the temperature inside the oven 2 from damaging the balance body 401 during drying.

[0027] When the first sensor 406 separates from the second sensor 407, the oven 2 can be started to dry the material in the material tray. After drying, the interior of the oven 2 is cooled. After cooling, the hydraulic rod 4010 is activated to move the weighing pan 402 towards the heat insulation plate 403, so that the weighing pan 402 is in contact with the heat insulation plate 403 and the heat insulation plate 403 is removed from the sealing groove 6. The horizontal axis of the outer wall of the top surface of the heat insulation plate 403 is once again higher than the horizontal axis of the inner wall of the bottom surface of the oven 2. The guide slide column 405, the guide slide groove 404, the first sensor 406 and the second sensor 407 are used to dry the material in the material tray. The two sensors 407 prevent displacement between the weighing pan 402 and the heat insulation plate 403, and then the total weight of the dried material pan can be weighed. The data is then processed and calculated to obtain the moisture content. During the weighing process, there is no need to move the material pan back and forth, thereby reducing variables and improving detection accuracy. At the same time, when the balance body 401 needs to be repaired, the balance body 401 can be smoothly moved out of the groove 3 by pulling the fixed tray 408 and the multi-section slide rail 409, which facilitates the repair of the balance body 401.

[0028] The working principle of this fine aggregate moisture content testing device:

[0029] In use, first place the empty material tray on the heat insulation plate 403, then weigh the empty material tray using the balance body 401. Next, pour the material into the tray and weigh the total weight of the tray. Then, activate the hydraulic rod 4010 to move the heat insulation plate 403 into the sealing groove 6. The heat insulation plate 403 and the sealing groove 6 seal and insulate the inner wall of the bottom surface of the oven 2. Then, seal the inner cavity of the oven 2 through the second rotating baffle 9, and dry the material in the tray through the oven 2. After drying, open the second rotating baffle 9 and simultaneously start the cooling fan 10 to cool the material. Machine 10 accelerates the cooling of the temperature inside the oven 2 cavity. At the same time, the airflow speed inside the oven 2 cavity is controlled by the air guide plate 8 to prevent excessive airflow from affecting the material in the material tray. After cooling is completed, the hydraulic rod 4010 is activated so that the horizontal axis of the top outer wall of the heat insulation plate 403 is once again higher than the horizontal axis of the bottom inner wall of the oven 2. Then, the total weight of the dried material tray can be weighed. The data is then processed and calculated to obtain the moisture content. During the weighing process, there is no need to move the material tray back and forth, thereby reducing variables and improving the accuracy of detection.

[0030] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A fine aggregate moisture content detection device, comprising a base (1), characterized in that: An oven (2) is provided on one side above the base (1). A groove (3) is provided on the base (1). An electronic balance (4) is provided in the groove (3). A first rotating door (5) is provided on one side of the groove (3). A sealing groove (6) is provided on the inner wall of the bottom surface of the oven (2). A through groove (7) is provided between the sealing groove (6) and the groove (3). An air guide plate (8) is fixedly provided on the inner wall of one side above the oven (2). A second rotating door (9) is provided on one side of the oven (2). A cooling fan (10) is provided on the outer wall of the oven (2).

2. The fine aggregate moisture content detection device according to claim 1, characterized in that: The through groove (7) is interconnected with the groove (3) and the sealing groove (6).

3. The fine aggregate moisture content detection device according to claim 2, characterized in that: The electronic balance (4) includes a balance body (401), a weighing pan (402) is provided on the balance body (401), a heat insulation plate (403) is provided on one side above the weighing pan (402), a plurality of guide grooves (404) are provided on the outer wall below the heat insulation plate (403), a guide column (405) is movably provided in the guide groove (404), a first sensor (406) is fixedly provided on the outer wall above the guide column (405), and a second sensor (407) is provided on one side above the first sensor (406).

4. The fine aggregate moisture content detection device according to claim 3, characterized in that: A fixed tray (408) is provided on one side below the main body (401) of the balance. A multi-section slide rail (409) is fixedly provided on the outer wall of one side below the fixed tray (408). A number of hydraulic rods (4010) are fixedly provided on the outer wall of one side below the multi-section slide rail (409).

5. The fine aggregate moisture content detection device according to claim 4, characterized in that: The weighing pan (402) is located in the through groove (7), and the horizontal axis of the outer wall of the top surface of the heat insulation plate (403) is higher than the horizontal axis of the inner wall of the bottom surface of the oven (2).

6. The fine aggregate moisture content detection device according to claim 5, characterized in that: The guide slide (405) is fixedly connected to the weighing pan (402), and the second sensor (407) is fixedly connected to the inner wall of the guide slide (404).

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