A sand water absorption test device

Abstract

The application relates to a sand water absorption test device, and belongs to the technical field of saturated surface dry water absorption test technology, which comprises a box body, the drying structure comprises a drying cavity and a dry cavity, a first shunt cavity is formed in the left side of the box body, a second shunt cavity is formed in the inner side of the side close to the drying cavity and the dry cavity, a plurality of air outlets are fixedly connected to the inner sides of the first shunt cavity and the second shunt cavity, a ventilation opening is formed in the interiors of the drying cavity and the dry cavity, and a first filter screen is fixedly connected to the right side of the ventilation opening. The application has the advantages that part of the heated air flows into the interior of the first shunt cavity in the drying structure, the sand in the drying cavity formed in the interior of the box body is dried through the guidance of the air outlet, then the air enters the interior of the dry cavity through the guidance of the ventilation opening, and the sand in the interior of the dry cavity is dry-dried.

Description

Technical Field

[0001] This application relates to the field of saturated surface dry water absorption rate testing technology, and in particular to a sand material water absorption rate testing device. Background Technology

[0002] The sand water absorption rate test is used to determine the ability of sand particles to absorb water under specific conditions. This test assesses the water absorption characteristics of sand and is commonly used for sand quality control in concrete production. The saturated surface-dry water absorption rate test technology studies the water absorption behavior of sand particles in both surface-dry and saturated states, aiming to more accurately quantify the water absorption characteristics of materials. This technology is mainly applied in building materials, civil engineering, and other fields to evaluate the physical properties of granular materials such as sand and gravel. The connection between the saturated surface-dry water absorption rate test and the sand water absorption rate test lies in the fact that the saturated surface-dry water absorption rate test provides a more standardized and scientific testing method for sand water absorption rate testing, improving the accuracy of test results by precisely controlling the moisture state of the sand. A search revealed Chinese Patent Publication No. CN222561390U, which discloses a device for testing the saturated surface-dry water absorption rate. This device belongs to the technical field of saturated surface-dry water absorption rate testing and addresses the problem that existing saturated surface-dry water absorption rate tests are significantly affected by human operation, resulting in low accuracy. The device includes: a support frame; a mold rotatably connected to the support frame; a tamping rod positioned above the mold, with the extension of the mold's central axis passing through the tamping rod and close to the bottom surface of the mold; and a drive module connected to both the mold and the tamping rod, used to drive the mold to rotate horizontally and to drive the tamping rod to move vertically to tamp the sample inside the mold. This invention is used to test the saturated surface-dry water absorption rate of sand and gravel aggregates. In existing technologies, some sand water absorption rate testing devices lack clear standards or effective monitoring methods to accurately determine the drying time of the sand during actual use. This leads to situations where the sand is either too dry or too wet during the drying process, thus affecting the accuracy and reliability of the test results. Because the drying process cannot be precisely controlled, the moisture content of the sand may not reach the ideal state, thereby affecting the accuracy of the water absorption rate measurement and subsequent experiments. Utility Model Content The purpose of this application is to provide a sand water absorption rate testing device, which aims to improve the problem that some existing sand water absorption rate testing devices are difficult to determine the drying time of sand in actual use, thus causing the sand to be too dry or too wet.

[0003] The sand material water absorption rate testing device provided in this application adopts the following technical solution: a sand material water absorption rate testing device includes a box, a drying structure is fixedly connected inside the box, an auxiliary drying mechanism is fixedly connected inside the box, an air supply mechanism is fixedly connected inside the box, and two boxes are rotatably connected to the front side of the box. The drying structure includes a drying chamber and a cooling chamber, both located inside the housing. Sand support assemblies are fixedly connected inside the drying chamber and the cooling chamber. A first diversion chamber is located on the left side of the housing, and a second diversion chamber is located on the adjacent side of the drying chamber and the cooling chamber. Multiple air outlets are fixedly connected to the left side of both the first and second diversion chambers. Ventilation openings are located inside the drying chamber and the cooling chamber, and a first filter is fixedly connected to the right side of each ventilation opening. Through the above technical solution: the device achieves functional zoning by setting up a drying chamber and a shaded drying chamber, facilitating staged processing of sand; the diversion chamber, in conjunction with multiple air outlets, ensures that airflow acts evenly on the sand, improving drying consistency; the ventilation openings and the first filter can intercept sand to prevent loss; the double-door design facilitates operation, and the fixed internal structure enhances stability, thus improving overall testing efficiency and accuracy. Preferably, the auxiliary drying mechanism includes a third diversion chamber, which is located inside the housing and below the drying chamber. Multiple guide pipes are fixedly connected to the top of the third diversion chamber, and guide blocks are fixedly connected inside each guide pipe. By adopting the above technical solution, in the auxiliary drying mechanism, the third diversion chamber is located on the lower side of the drying chamber, which can distribute airflow from below; multiple guide pipes, together with internal guide blocks, can accurately guide the airflow direction, enhance airflow guidance, make the airflow in the lower part of the drying chamber more uniform, improve the consistency and efficiency of sand drying, and help optimize the drying effect.

[0004] Preferably, the air supply mechanism includes a protective railing, the front side of which is fixedly connected to the rear side of the housing. A fan is fixedly connected inside the rear side of the housing. A ventilation slot is formed inside the housing, and a heating pipe is fixedly connected inside the ventilation slot. The rear side of the ventilation slot corresponds to the front side of the fan. By adopting the above technical solution, the protective railing in the air supply mechanism is fixed to the rear side of the chamber, which can protect the fan and prevent foreign objects from entering, thus improving safety. The fan provides airflow power, which, together with the heating tube in the ventilation slot, can form a stable hot airflow. The ventilation slot guides the airflow path, ensuring that the hot air is efficiently delivered into the chamber, helping the sand to dry evenly and improving the test efficiency. Preferably, the sand support assembly includes multiple support seats, which are respectively fixedly connected to the left and right sides of the drying chamber and the air-drying chamber. Support plates are slidably connected to adjacent sides of the multiple support seats, and the tops of the support plates are in contact with the sand. By adopting the above technical solution, in the sand support assembly, the support base is fixed on both sides of the drying chamber and the air-drying chamber, providing stable support for the support plate; the support plate is slidably connected to the support base, facilitating the loading and unloading of sand and making operation convenient; the support plate firmly bears the sand, ensuring its stable position during the drying and air-drying processes, which is conducive to uniform flow and improves the efficiency and stability of the test operation. Preferably, the housing has an internal receiving slot, the fan is externally fixedly connected to the inside of the receiving slot, the front side of the receiving slot has a through hole, and the ventilation slot corresponds to the through hole. By adopting the above technical solution, the receiving slot inside the box can be used to securely install the fan, preventing it from shaking during operation and enhancing structural stability. The through hole on the front side of the receiving slot corresponds to the ventilation slot, which can guide the airflow generated by the fan precisely into the ventilation slot, reducing airflow loss, improving air delivery efficiency, and ensuring that hot airflow is stably delivered into the box, thus aiding in the drying of the sand. Preferably, the guide block adopts a threaded rotating structure, and the guide pipe and the guide block serve as connecting parts between the drying chamber and the third diversion chamber. By adopting the above technical solution, the guide block uses a threaded rotating structure, which can make the flowing air form a swirling flow, enhance the uniformity of airflow, and avoid localized direct blowing; the guide pipe and guide block, as the connecting parts of the drying chamber and the third diversion chamber, can stably connect the two chambers, reduce airflow leakage, ensure efficient airflow transmission, and improve the uniformity and efficiency of sand drying. Preferably, a directional through hole is provided on the right side of the housing, a second filter screen is fixedly connected to the left side of the housing, the directional through hole corresponds to the right side of the second filter screen, and multiple sockets are fixedly connected to the front side of the housing. By adopting the above technical solution, the through-hole on the right side of the chamber corresponds to the second filter on the left side, which can form convection to promote air circulation. The second filter can filter dust, prevent impurities from entering or sand particles from overflowing, and ensure the cleanliness of the chamber. Multiple sockets on the front side facilitate the power supply of external equipment, improve the convenience of operation, and optimize the overall practicality of the equipment and the stability of the test environment. Preferably, a cavity is provided between the first diversion cavity and the ventilation slot. By adopting the above technical solution, the cavity between the first diversion chamber and the ventilation channel can serve as a buffer space for airflow transition, allowing the airflow delivered by the ventilation channel to be smoothly regulated before entering the first diversion chamber, reducing airflow turbulence and impact, making the airflow distributed from the diversion chamber to each air outlet more uniform, while reducing airflow transmission resistance, improving air delivery efficiency, and contributing to a more stable sand drying effect. In summary, this application includes at least one of the following beneficial technical effects: 1. In this utility model, external air is introduced into the chamber through a fan in the air supply mechanism, and then guided into the heating tube through the ventilation slot for heating. The heated air then flows into the first diversion chamber in the drying structure, and is guided by the air outlet to dry the sand inside the drying chamber located inside the chamber. Afterward, the air is guided into the air drying chamber through the ventilation port to air dry the sand inside the air drying chamber. In the above structure, the temperature of the air entering the drying chamber is reduced due to the drying of the sand. When it is necessary to finely control the surface moisture of the sand, the sand can be placed inside the air drying chamber to gradually reduce the surface moisture of the sand, thereby improving the efficiency of testing the water absorption rate of the sand. 2. In this utility model, the hot air entering the auxiliary drying mechanism is guided by the guide block inside the guide pipe. During this process, the structure of the hot air changes from direct rise to spiral rise, thereby avoiding splashing caused by direct blowing of sand. The sand support assembly supports the sand through multiple support seats fixed on the inner walls of both sides of the drying chamber and the air drying chamber, in conjunction with the support plate. The design of multiple support seats facilitates the circulation of hot air between the multiple support plates. Attached Figure Description

[0005] Figure 1 This is a three-dimensional schematic diagram of a sand material water absorption rate testing device proposed in this utility model; Figure 2 This is a schematic diagram of the fan structure of a sand material water absorption rate testing device proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the first diversion chamber of a sand material water absorption rate testing device proposed in this utility model; Figure 4 This is a schematic diagram of the guide tube of a sand material water absorption rate testing device proposed in this utility model; Explanation of reference numerals in the attached drawings: 1. Box body; 2. Air supply mechanism; 21. Guardrail; 22. Fan; 23. Heating tube; 24. Ventilation slot; 3. Drying structure; 31. First diversion chamber; 32. Air outlet; 33. Second diversion chamber; 34. Drying chamber; 35. Air drying chamber; 36. Ventilation opening; 37. First filter screen; 4. Sand support assembly; 41. Support base; 42. Support plate; 5. Auxiliary drying mechanism; 51. Third diversion chamber; 52. Guide pipe; 53. Guide block; 6. Box door; 7. Socket; 8. Second filter screen. Detailed Implementation

[0006] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.

[0007] Example: A sand material water absorption rate testing device, referring to... Figure 1 , Figure 3 , Figure 4 The device includes a housing 1, which serves as the main load-bearing structure. It is made of high-strength stainless steel and features excellent high-temperature resistance and corrosion resistance, allowing it to adapt to temperature changes during the drying process. A drying structure 3 is fixedly connected inside the housing 1; this structure is the core component for achieving the sand drying process. An auxiliary drying mechanism 5 and an air supply mechanism 2 are also fixedly connected inside the housing 1. Two doors 6 are rotatably connected to the front of the housing 1. A directional through-hole is located on the right side of the housing 1. A second filter 8 is fixedly connected to the left side of the housing 1. The second filter 8 ensures airflow inside and outside the housing 1, regulates the air pressure inside, and prevents moisture from being trapped. The directional through-hole corresponds to the right side of the second filter 8. Multiple sockets 7 are fixedly connected to the front of the housing 1. The doors 6, located on the front of the housing 1, serve both sealing and opening functions, facilitating the insertion and removal of sand by operators. The multiple sockets 7 are used to connect to the power supply, ensuring the normal operation of the device. Specifically, open both chamber doors 6, place the sand to be processed into the drying structure 3 inside the chamber 1, and close the chamber doors 6; connect the power supply through the multiple sockets 7 on the front side of the chamber 1 and start the device; the air supply mechanism 2 operates to generate airflow, which flows inside the chamber 1 and dries the sand through the drying structure 3, while the auxiliary drying mechanism 5 operates simultaneously to assist in the drying of the sand; during the process, the directional through hole on the right side of the chamber 1 cooperates with the second filter screen 8 on the left side to achieve air circulation inside and outside the chamber 1, completing the drying process required for the sand water absorption rate test.

[0008] The drying structure 3 includes a drying chamber 34 and a drying chamber 35. The drying chamber 34 and the drying chamber 35 implement different types of drying processes. The drying chamber 34 focuses on efficient and rapid drying, while the drying chamber 35 removes excess moisture from the surface of the sand in a gentle manner, thus avoiding over-drying. Both the drying chamber 34 and the drying chamber 35 are located inside the housing 1. Sand support components 4 are fixedly connected inside the drying chamber 34 and the drying chamber 35. A first diversion chamber 31 is located on the left side of the housing 1. A second diversion chamber 33 is provided inside the adjacent side of the drying chamber 34 and the air-drying chamber 35. Multiple air outlets 32 are fixedly connected to the left side of both the first diversion chamber 31 and the second diversion chamber 33. Ventilation openings 36 are provided inside the drying chamber 34 and the air-drying chamber 35. A first filter screen 37 is fixedly connected to the right side of the ventilation opening 36. The ventilation opening 36 is used for airflow discharge, and the first filter screen 37 is used to filter impurities in the airflow to ensure the cleanliness of the system and the effectiveness of the airflow. A cavity is provided between the first diversion chamber 31 and the ventilation slot 24. Specifically, the sand is placed on the sand support assembly 4 in the drying chamber 34 and the air drying chamber 35. The airflow enters the cavity between the ventilation slot 24 and the first diversion chamber 31, and then flows into the first diversion chamber 31. It enters the drying chamber 34 and the air drying chamber 35 through multiple air outlets 32 on the left side of the first diversion chamber 31. At the same time, multiple air outlets 32 on the left side of the second diversion chamber 33 deliver airflow into the drying chamber 34 and the air drying chamber 35. After the airflow acts on the sand, it flows out through the ventilation port 36 and flows through the first filter screen 37.

[0009] The sand support assembly 4 includes multiple support seats 41, which are fixedly connected to the left and right sides of the drying chamber 34 and the air drying chamber 35 respectively. A support plate 42 is slidably connected to the inside of the adjacent side of the multiple support seats 41. The support plate 42 is used to support the sand to be dried, ensuring that the sand is not disturbed by external forces during the entire drying process and can stably receive airflow treatment. The top of the support plate 42 is in contact with the sand. Specifically, the support plate 42 is slid into the support base 41 along the side closest to it, so that the support plate 42 is in the preset position within the drying chamber 34 and the air-drying chamber 35; the sand to be treated is placed on top of the support plate 42, and the sand is kept in contact with the support plate 42; during the drying and air-drying process of the sand, the support plate 42 always supports the sand until the treatment is completed, then the support plate 42 is slid out along the support base 41 and the sand is removed.

[0010] Reference Figure 2 , Figure 4 The auxiliary drying mechanism 5 includes a third diversion chamber 51, which is the airflow distribution area of ​​the auxiliary drying system. Through the third diversion chamber 51, the airflow is subdivided and guided to multiple guide pipes 52. The third diversion chamber 51 is located inside the housing 1 and is situated on the lower side of the drying chamber 34. Multiple guide pipes 52 are fixedly connected to the top of the third diversion chamber 51. Guide blocks 53 are fixedly connected to the inside of the guide pipes 52. The threaded rotating structure of the guide blocks 53 can adjust the direction and speed of the airflow, ensuring that the sand material is dried more evenly. The guide blocks 53 adopt a threaded rotating structure. The guide pipes 52 and the guide blocks 53 serve as connectors between the drying chamber 34 and the third diversion chamber 51. Air is guided into the guide pipes 52 through the third diversion chamber 51, and then the airflow is guided into the drying chamber 34 through the threaded rotating structure of the guide blocks 53, ensuring the uniform distribution of the airflow and enhancing the drying process of the sand material. Specifically, after the airflow enters the third diversion chamber 51, it is conveyed upward through multiple guide pipes 52 at the top of the third diversion chamber 51; when it flows through the inside of the guide pipes 52, it comes into contact with the guide block 53 which has a threaded rotating structure; then, the airflow enters the drying chamber 34 through the guide pipes 52 and the guide block 53, and acts on the sand material in the drying chamber 34.

[0011] The air supply mechanism 2 includes a guardrail 21, which is installed on the rear side of the housing 1 and mainly serves as a safety protection to prevent operators from contacting the fan 22. The front side of the guardrail 21 is fixedly connected to the rear side of the housing 1. The fan 22 is fixedly connected inside the rear side of the housing 1. A ventilation slot 24 is opened inside the housing 1. A heating pipe 23 is fixedly connected inside the ventilation slot 24. The heating pipe 23 is used to heat the airflow to ensure that the air temperature is suitable for the drying requirements of the sand and to avoid overheating or uneven temperature. The rear side of the ventilation slot 24 corresponds to the front side of the fan 22. A receiving slot is opened inside the housing 1. The fan 22 is installed inside the receiving slot. The receiving slot is connected to the ventilation slot 24 through a through hole to ensure smooth airflow. The outside of the fan 22 is fixedly connected to the inside of the receiving slot. A through hole is opened on the front side of the receiving slot, and the ventilation slot 24 corresponds to the through hole. Specifically, the fan 22 generates airflow in the receiving slot, and the airflow enters the ventilation slot 24 through the through hole on the front side of the receiving slot; the heating pipe 23 in the ventilation slot 24 heats the incoming airflow, and the heated airflow continues to be transported along the ventilation slot 24; the guardrail 21 is located at the corresponding position on the rear side of the box 1 and maintains the corresponding state as the device operates. The implementation principle of this application embodiment is as follows: external air is introduced into the interior of the box 1 by the fan 22 in the air supply mechanism 2, and then guided into the heating tube 23 for heating through the ventilation slot 24. After heating, part of the air flows into the first diversion chamber 31 in the drying structure 3, and is guided by the air outlet 32 ​​to dry the sand material in the drying chamber 34 located inside the box 1. Then, the air is guided into the drying chamber 35 through the ventilation port 36 to air dry the sand material inside the drying chamber 35. In the above structure, the temperature of the air entering the drying chamber 34 is reduced due to the drying of the sand material. When it is necessary to finely control the surface moisture of the sand material, the sand material can be placed in the drying chamber 35 to gradually reduce the surface moisture of the sand material through air drying, thereby improving the efficiency of testing the water absorption rate of the sand material. At the same time, the first filter screen 37 located on the right side of the ventilation port 36 and the second filter screen 8 located on the left side of the box 1 cooperate with each other to prevent the fine sand and gravel in the drying chamber 34 and the drying chamber 35 from being directly splashed out of the interior of the box 1 due to the exhaust air. The hot air entering the third diversion chamber 51 of the auxiliary drying mechanism 5 is guided by the guide block 53 inside the guide pipe 52. During this process, the structure of the hot air changes from direct rise to spiral rise, thereby avoiding splashing caused by direct blowing of sand. The sand support assembly 4 supports the sand through multiple support seats 41 fixed on the inner walls of both sides of the drying chamber 34 and the air drying chamber 35, and the support plates 42 slidably connected inside the multiple support seats 41. The design of the multiple support seats 41 being spaced apart from each other facilitates the circulation of hot air between the multiple support plates 42.

[0012] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sand material water absorption rate testing device, comprising a housing (1), characterized in that: The box (1) is fixedly connected to a drying structure (3), the box (1) is fixedly connected to an auxiliary drying mechanism (5), the box (1) is fixedly connected to an air supply mechanism (2), and the front side of the box (1) is rotatably connected to two boxes (6). The drying structure (3) includes a drying chamber (34) and a drying chamber (35). Both the drying chamber (34) and the drying chamber (35) are located inside the housing (1). A sand support assembly (4) is fixedly connected inside the drying chamber (34) and the drying chamber (35). A first diversion chamber (31) is located on the left side of the housing (1). A second diversion chamber (33) is located on the side of the drying chamber (34) and the drying chamber (35). Multiple air outlets (32) are fixedly connected inside the left side of both the first diversion chamber (31) and the second diversion chamber (33). Ventilation openings (36) are located inside the drying chamber (34) and the drying chamber (35). A first filter screen (37) is fixedly connected to the right side of the ventilation opening (36).

2. The sand material water absorption rate testing device according to claim 1, characterized in that: The auxiliary drying mechanism (5) includes a third diversion chamber (51), which is located inside the housing (1) and below the drying chamber (34). Multiple guide pipes (52) are fixedly connected to the top of the third diversion chamber (51), and guide blocks (53) are fixedly connected inside the guide pipes (52).

3. The sand material water absorption rate testing device according to claim 1, characterized in that: The air supply mechanism (2) includes a guardrail (21), the front side of which is fixedly connected to the rear side of the box (1), a fan (22) is fixedly connected inside the rear side of the box (1), a ventilation slot (24) is provided inside the box (1), a heating pipe (23) is fixedly connected inside the ventilation slot (24), and the rear side of the ventilation slot (24) corresponds to the front side of the fan (22).

4. The sand material water absorption rate testing device according to claim 1, characterized in that: The sand support assembly (4) includes multiple support seats (41), which are fixedly connected to the left and right sides of the drying chamber (34) and the air drying chamber (35), respectively. A support plate (42) is slidably connected to the inside of the adjacent side of the multiple support seats (41), and the top of the support plate (42) is in contact with the sand.

5. The sand material water absorption rate testing device according to claim 3, characterized in that: The housing (1) has an internal receiving slot, and the fan (22) is externally fixedly connected to the inside of the receiving slot. The front side of the receiving slot has a through hole, and the ventilation slot (24) corresponds to the through hole.

6. The sand material water absorption rate testing device according to claim 2, characterized in that: The guide block (53) adopts a threaded rotating structure, and the guide pipe (52) and the guide block (53) serve as the connecting parts between the drying chamber (34) and the third diversion chamber (51).

7. The sand material water absorption rate testing device according to claim 1, characterized in that: The box (1) has a directional through hole on the right side, and a second filter (8) is fixedly connected to the left side of the box (1). The directional through hole corresponds to the right side of the second filter (8). Multiple sockets (7) are fixedly connected to the front side of the box (1).

8. The sand material water absorption rate testing device according to claim 3, characterized in that: A cavity is provided between the first diversion cavity (31) and the ventilation slot (24).

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