Device for detecting density of ardealite-based backfill material

By designing a density detector with a detection probe and display, combined with a sample cup and connecting mechanism, the problem of cumbersome operation in phosphogypsum slurry density detection was solved, achieving efficient and convenient density detection.

CN224163531UActive Publication Date: 2026-04-24CHINA CONSTRUCTION INDUSTRIAL & ENERGY ENGINEERING GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTRUCTION INDUSTRIAL & ENERGY ENGINEERING GROUP CO LTD
Filing Date
2025-05-07
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing methods for testing the density of phosphogypsum slurry are cumbersome, inefficient, and difficult to perform in large batches.

Method used

A density detector with a detection probe and display was designed, equipped with a sample cup and a connection mechanism. The sample cup can be detached and installed through an external threaded joint and an internal threaded interface. Combined with a mounting bracket and a handle, the convenience of the device and the detection efficiency are improved.

Benefits of technology

The detection probe can be directly immersed in phosphogypsum slurry, which facilitates rapid detection. The sample cup is detachable for easy replacement, improving detection efficiency and convenience.

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Abstract

The utility model belongs to the technical field of ardealite density detection, and particularly relates to an ardealite-based backfill material density detection device which comprises a density detector with a detection probe and a displayer. A connecting mechanism used for connection is arranged between the bottom of the sample cup and the density detector, one end of the detection probe penetrates and extends into the sample cup from bottom to top, the connecting mechanism comprises an external thread connector and an internal thread connector, the internal thread connector is installed at the bottom of the sample cup in a communicated mode, and the internal thread connector is connected with the density detector. According to the phosphogypsum density detection device, the connecting mechanism and the sample cup are additionally arranged, so that the sample cup is integrated on the density detector, at the moment, the detection probe is located in the sample cup, the detection probe is directly soaked in phosphogypsum slurry, and equipment can conveniently carry out density detection on the phosphogypsum density detection device.
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Description

Technical Field

[0001] This utility model belongs to the field of phosphogypsum density testing technology, specifically relating to a density testing device for phosphogypsum-based backfill materials. Background Technology

[0002] Phosphogypsum is a basic backfill material used in the preparation of cement retarders and gypsum boards. When used, phosphogypsum is mixed with water. To improve the quality of phosphogypsum, its density needs to be tested after mixing. Methods such as immersion, hydrometer method, and gas static pressure method can be used for this. The immersion method involves suspending a density meter in the phosphogypsum slurry and recording the reading, resulting in relatively accurate results. However, this method requires pouring the phosphogypsum slurry into a sample cup and then suspending the density meter in the slurry using a support. During placement, a tool is needed to press the density meter into the slurry to increase its speed, making the operation cumbersome and inefficient. Utility Model Content

[0003] The purpose of this invention is to provide a density testing device for phosphogypsum-based backfill materials, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a density detection device for phosphogypsum-based backfill material, comprising: a density detector with a detection probe and a display, wherein the density detector is provided with a sample cup for storing samples, and a connecting mechanism for connecting the bottom of the sample cup and the density detector is provided, wherein one end of the detection probe extends through from bottom to top into the interior of the sample cup.

[0005] Preferably, the connection mechanism includes an external threaded connector and an internal threaded interface. The internal threaded interface is connected to and installed at the bottom of the sample cup. The external threaded connector is installed between the detection probe and the density detector. The internal threaded interface is screwed onto the external threaded connector.

[0006] Preferably, a sealing gasket for sealing is provided between the sample cup and the internal threaded interface, and the sealing gasket abuts against the top of the external threaded joint.

[0007] Preferably, the detector body is further provided with a mounting bracket for support below the detection probe, the mounting bracket has a U-shaped mounting groove for accommodating the density detector, and the end of the mounting bracket opposite to the U-shaped mounting groove has a handle for gripping.

[0008] Preferably, the density detector has a rotating shaft on both sides for flipping up and down, and a rotating groove for rotating the shaft is opened on the inner wall of both sides of the U-shaped mounting groove. The density detector also has a counterweight block for counterweighting at the end away from the detection probe.

[0009] Preferably, the mounting bracket and the handle are provided with a receiving groove for accommodating the detection probe, and the inner walls on both sides of the receiving groove are provided with limiting blocks to restrict the detection probe, and the width between the two limiting blocks is smaller than the diameter of the detection probe.

[0010] Compared with the prior art, this utility model has the following advantages:

[0011] (1) This utility model integrates the sample cup onto the density detector by adding a connecting mechanism and a sample cup. At this time, the detection probe is located inside the sample cup. After the phosphogypsum slurry is poured into the sample cup, the detection probe is directly immersed in the phosphogypsum slurry, which facilitates the equipment to perform density detection.

[0012] (2) By adding an external threaded connector and an internal threaded interface, the sample cup can be detachably installed on the density detector, which makes it easier for the equipment to test multiple batches of phosphogypsum slurry. At the same time, it is easy to replace the sample cup, thereby improving the efficiency of the equipment testing.

[0013] (3) The present invention facilitates the use of handheld devices and improves the ease of use of the devices by adding a mounting frame and a handle. Attached Figure Description

[0014] Figure 1 This is a front view of the present invention;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a front view of the detection probe of this utility model when it is stored.

[0017] In the diagram: 1. Sample cup; 2. Internal threaded interface; 3. Density detector; 4. Rotating shaft; 5. Mounting bracket; 6. Limiting block; 7. Handle; 8. Receiving groove; 9. Counterweight; 10. U-shaped mounting groove; 11. Display; 12. Detection probe; 13. External threaded connector; 14. Rotating groove; 15. Sealing gasket. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] refer to Figure 1-2As shown, the present invention provides a density detection device for phosphogypsum-based backfill material, comprising: a density detector 3 with a detection probe 12 and a display 11, a sample cup 1 for storing samples on the density detector 3, a connecting mechanism for connecting the bottom of the sample cup 1 and the density detector 3, and one end of the detection probe 12 extending through from bottom to top into the interior of the sample cup 1.

[0020] Combination Figure 1-2 As shown, the connection mechanism includes an external threaded connector 13 and an internal threaded interface 2. The internal threaded interface 2 is connected to the bottom of the sample cup 1. The external threaded connector 13 is installed between the detection probe 12 and the density detector 3. The internal threaded interface 2 is screwed onto the external threaded connector 13.

[0021] As described above, when using the detection probe 12, display 11, and density detector 3 provided by this utility model, the sample cup 1 is screwed onto the external threaded connector 13 through the internal threaded interface 2. At this time, the detection probe 12 is located in the sample cup 1. When the sample is poured into the sample cup 1, the detection probe 12 is located in the sample. The detection result is displayed on the display 11.

[0022] Furthermore, to prevent leakage between sample cup 1 and external threaded connector 13, refer to Figure 2 As shown, a sealing gasket 15 is provided between the sample cup 1 and the internal threaded interface 2 for sealing, and the sealing gasket 15 abuts against the top of the external threaded connector 13. When the sample cup 1 is connected through the internal threaded interface 2 and the external threaded connector 13, the sealing gasket 15 plays a sealing role in the gap between the two, preventing the sample in the sample cup 1 from leaking.

[0023] In this utility model, combined with Figure 1-3 As shown, the detector body of this embodiment is provided with a mounting bracket 5 for support below the detection probe 12. The mounting bracket 5 has a U-shaped mounting groove 10 for accommodating the density detector 3. The end of the mounting bracket 5 away from the U-shaped mounting groove 10 is provided with a handle for gripping.

[0024] As described above, by using the mounting bracket 5 and handle provided by this utility model, it is convenient to hold the mounting bracket 5 by the handle, and the mounting bracket 5 provides an installation position for the density detector 3, thereby making it convenient to use the density detector 3 body by hand.

[0025] In this utility model, combined with Figure 1-3 As shown, the density detector 3 of this embodiment is provided with rotating shafts 4 on both sides for flipping up and down, and rotating grooves 14 for rotating shafts 4 are provided on the inner walls of both sides of the U-shaped mounting groove 10. The density detector 3 is also provided with a counterweight block 9 for counterweighting at the end away from the detection probe 12.

[0026] As described above, when using the two rotating shafts 4 provided by this utility model, the two rotating shafts 4 are rotatably mounted on the mounting frame 5 through the rotating groove 14. When holding the handle 7, the density detector 3 is always kept vertical on the mounting frame 5 through the counterweight 9, which makes it easy to keep the sample cup 1 stable under different holding angles.

[0027] Furthermore, to prevent damage to the detection probe 12 when not in use, refer to Figure 3 As shown, the mounting bracket 5 and handle 7 are provided with receiving grooves 8 for accommodating the detection probe 12. Limiting blocks 6 are provided on both inner walls of the receiving groove 8 to restrict the detection probe 12. The width between the two limiting blocks 6 is smaller than the diameter of the detection probe 12. When the equipment is not in use, the density detector 3 is rotated on the mounting bracket 5, allowing the detection probe 12 to enter the receiving groove 8. The limiting blocks 6 then restrict the detection probe 12 within the receiving groove 8, thus enabling the detection probe 12 to be stored when the equipment is not in use.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A density testing device for phosphogypsum-based backfill materials, characterized in that, include: A density detector (3) with a detection probe (12) and a display (11) is provided. A sample cup (1) for storing samples is provided on the density detector (3). A connection mechanism for connecting the bottom of the sample cup (1) and the density detector (3) is provided. One end of the detection probe (12) extends through from bottom to top into the interior of the sample cup (1).

2. The density detection device for phosphogypsum-based backfill material according to claim 1, characterized in that: The connection mechanism includes an external threaded connector (13) and an internal threaded interface (2). The internal threaded interface (2) is connected to the bottom of the sample cup (1). The external threaded connector (13) is installed between the detection probe (12) and the density detector (3). The internal threaded interface (2) is screwed onto the external threaded connector (13).

3. The density detection device for phosphogypsum-based backfill material according to claim 2, characterized in that: A sealing gasket (15) for sealing is provided between the sample cup (1) and the internal thread interface (2), and the sealing gasket (15) abuts against the top of the external thread connector (13).

4. The density testing device for phosphogypsum-based backfill material according to claim 1, characterized in that: The detector body is provided with a mounting bracket (5) for support below the detection probe (12). The mounting bracket (5) has a U-shaped mounting groove (10) for accommodating the density detector (3). The end of the mounting bracket (5) away from the U-shaped mounting groove (10) has a handle for gripping.

5. The density testing device for phosphogypsum-based backfill material according to claim 4, characterized in that: The density detector (3) is provided with rotating shafts (4) on both sides for flipping up and down. The inner walls of both sides of the U-shaped mounting groove (10) are provided with rotating grooves (14) for rotating the rotating shafts (4). The density detector (3) is also provided with a counterweight block (9) for counterweighting at the end away from the detection probe (12).

6. The density detection device for phosphogypsum-based backfill material according to claim 4, characterized in that: The mounting bracket (5) and the handle (7) are provided with a receiving groove (8) for accommodating the detection probe (12). The inner walls on both sides of the receiving groove (8) are provided with limiting blocks (6) to restrict the detection probe (12). The width between the two limiting blocks (6) is smaller than the diameter of the detection probe (12).