Coarse aggregate firmness dry-wet cycle integrated device

By designing an integrated dry and wet circulation device that includes an oven, partitions, a rotating wheel, and heating components, the problem of requiring two devices to operate alternately in the existing technology is solved, and the coarse aggregate test is simplified and the dry and wet circulation is made more efficient.

CN223623938UActive Publication Date: 2025-12-02HEBEI JIANYUAN ENERGY CO LTD +1
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Patent Information

Application Number
CN202423118601.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-12-02
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

Existing technology requires the use of two separate devices to conduct dry and wet cycle tests on coarse aggregates, which is time-consuming and labor-intensive, and cannot achieve integrated operation.

Method used

Design a coarse aggregate robustness dry-wet cycle integrated device including an oven, partition, rotating wheel, heating component and drying component. The oven is divided into upper and lower parts by the partition, which are used for drying and soaking respectively. The rotating wheel realizes the dry-wet cycle test of coarse aggregate.

Benefits of technology

It simplifies and integrates coarse aggregate testing, reduces operating steps and time, and improves testing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a coarse aggregate firmness dry-wet cycle integrated device and belongs to the field of detection devices. The drying device comprises a drying oven, a partition plate, a rotating wheel, a heating assembly and a drying assembly, the drying oven is a hollow box body, the rotating wheel is arranged in the drying oven, and the partition plate is horizontally installed on the rotating wheel and rotates along with the rotating wheel; the partition plate divides the interior of the drying oven into an upper part and a lower part, the upper part is a drying part, the lower part is a soaking part, the drying assembly is arranged in the drying part of the drying oven, and the heating assembly is arranged on the lower part of the soaking part of the drying oven. According to the utility model, the coarse aggregate is put into the screen from the feeding hole, the rotating wheel is started, the temperature of the drying oven part is reduced to 130 DEG C for drying, the lower soaking part is used for soaking the coarse aggregate, the middle part is separated by the heat-insulating and moisture-insulating partition plate for performing a dry-wet cycle test on the coarse aggregate, and the problems of simplicity, convenience and integration of the test are solved.
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Description

Technical Field

[0001] This utility model belongs to the field of coarse aggregate testing and detection devices, specifically relating to an integrated dry and wet cycle device for coarse aggregate robustness testing. Background Technology

[0002] Because the coarse aggregate strength test requires simulating both dry and wet coarse aggregate conditions, two instruments are needed to conduct the test alternately, which is time-consuming and labor-intensive. Summary of the Invention

[0003] To address the aforementioned issues, we need to design an integrated dry-wet cycle device for coarse aggregate strength to solve the problems raised in the background technology.

[0004] The present invention relates to an integrated dry-wet cycle device for coarse aggregate strengthening, characterized in that the integrated device includes an oven, a partition, a rotating wheel, a heating component, and a drying component. The oven is a hollow box, the rotating wheel is located inside the oven, and the partition is horizontally installed on the rotating wheel and rotates with the rotating wheel. The partition divides the interior of the oven into upper and lower parts, the upper part being the drying part and the lower part being the soaking part. The drying component is located inside the drying part of the oven, and the heating component is located below the soaking part of the oven.

[0005] The oven is equipped with a feed inlet at the top, and a screen is installed on the rotating wheel directly above the partition. The opening of the screen is covered with a cover.

[0006] The oven has an inlet and an outlet on its lower side wall. The soaking section is filled with a soaking solution, which is a saturated sodium sulfate solution.

[0007] The length of the partition is equal to the internal width of the oven. The partition is used to isolate the temperature and humidity of the upper and lower parts, so as to avoid excessive impact on the experiment.

[0008] This utility model relates to an integrated dry-wet cycle device for coarse aggregate strength testing. The coarse aggregate is fed into the screen through the inlet, and the rotating wheel is started. The temperature of the drying chamber is raised to 130°C for drying, while the soaking section at the bottom is used to soak the coarse aggregate. The two sections are separated by an insulated and moisture-proof partition for conducting dry-wet cycle tests on the coarse aggregate. This device solves the problems of simplified and integrated testing. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] The components include: 1. Drying section; 2. Soaking section; 3. Rotary wheel; 4. Heating component; 5. Drying component; 6. Baffle plate; 7. Feed inlet; 8. Screen; 9. Liquid inlet; 10. Liquid outlet. Detailed Implementation

[0011] Example 1: A coarse aggregate strengthening and drying integrated wet-dry cycle device includes an oven, a partition, a rotating wheel, a heating component, and a drying component. The oven is a hollow box, 150cm long, 160cm wide, and 60cm high. The rotating wheel is located inside the oven, with a diameter (r) of 50cm. The partition is horizontally mounted on the rotating wheel and rotates with it, with an installation height (h) of 20cm. The partition divides the oven into upper and lower sections: the upper section is for drying, and the lower section is for soaking. The drying component is located in the drying section, and the heating component is located below the soaking section. A feed inlet is located at the top of the oven. A 40cm square screen is mounted on the rotating wheel directly above the partition. The left, right, and bottom screens have 4.75mm square holes, while the other sides are unperforated. The screen openings are covered. An inlet and outlet are located on the lower side wall of the oven. The soaking section is filled with a saturated sodium sulfate solution.

[0012] Place the coarse aggregate into the screen of the rotating wheel through the feed inlet, replace the screen cover, and start the wheel to rotate. When the screen rotates to the soaking section, the coarse aggregate is completely immersed in a saturated sodium sulfate solution. Turn on the heating element and heat the solution to the test temperature of 20℃~25℃. After soaking for 20 hours, turn off the heating element. Rotate the wheel clockwise again to rotate the screen to the drying section, stop rotating, and turn on the drying element. Raise the temperature in the drying section to 100℃~110℃. After drying for 4 hours, one wet-dry cycle test of the coarse aggregate is completed. The second cycle begins, with soaking and drying time of 4 hours each. Repeat the cycle 5 times until the end of the test. Remove the coarse aggregate, and the joint strength test is completed.

[0013] Both the drying and heating components use heating wires connected to the mains power. When the heating wires are energized, they generate high temperatures. The drying component uses the heat to raise the temperature of the drying section, while the heating component raises the temperature of the soaking solution. If necessary, thermocouples can be added to the drying and soaking sections and connected to the drying and heating components to achieve automatic temperature control.

[0014] The entire rotor can be equipped with eight screens, four on the top and four on the bottom, allowing for alternating soaking and drying experiments of two sets of coarse aggregates.

Claims

1. A coarse aggregate strengthening dry-wet cycle integrated device, characterized in that... The integrated device includes an oven, a partition, a rotating wheel, a heating component, and a drying component. The oven is a hollow box, and the rotating wheel is located inside the oven. The partition is horizontally installed on the rotating wheel and rotates with it. The partition divides the interior of the oven into upper and lower parts. The upper part is the drying part, and the lower part is the soaking part. The drying component is located inside the drying part of the oven, and the heating component is located below the soaking part of the oven.

2. The coarse aggregate strengthening dry-wet cycle integrated device as described in claim 1, characterized in that... The oven is equipped with a feed inlet at the top, and a screen is installed on the rotating wheel directly above the partition. The opening of the screen is covered with a cover.

3. The coarse aggregate strengthening dry-wet cycle integrated device as described in claim 1, characterized in that... The oven has an inlet and an outlet on its lower side wall. The soaking section is filled with a soaking solution, which is a saturated sodium sulfate solution.

4. The coarse aggregate strengthening dry-wet cycle integrated device as described in claim 1, characterized in that... The length of the partition is equal to the internal width of the oven.