Magnetic stirring and screening device for detecting silt content of fine aggregate

Abstract

The utility model provides a magnetic stirring and screening device for detecting the silt content of fine aggregate, and belongs to the technical field of silt content detection of fine aggregate. The magnetic stirring and screening device for detecting the silt content of the fine aggregate comprises a base, a cup body, a stirrer, a water inlet pipe, a water drainage pipe and a V-shaped square hole sieve, a motor and a magnetic rotor are installed in the base, the cup body is located at the top end of the base, the stirrer is located in the cup body, the water inlet pipe is vertically arranged, and the water drainage pipe is located in the V-shaped square hole sieve. The bottom end of the water inlet pipe is connected with the bottom of the side face of the cup body, one end of the water drainage pipe is connected to the side face of the cup body, the other end of the water drainage pipe is obliquely arranged downwards, the V-shaped square hole sieve is arranged in the cup body, and the height of the water drainage pipe is larger than that of the V-shaped square hole sieve. The device has the advantage of improving the detection efficiency of the silt content of the fine aggregate.

Description

Technical Field

[0001] The utility model relates to the technical field of fine aggregate mud content detection, in particular to a magnetic stirring and screening device for fine aggregate mud content detection. Background Art

[0002] As a basic material in engineering construction, in the daily laboratory testing work, testers need to carry out detection activities for each inspection batch. Its mud content is an important index reflecting the quality of concrete aggregate. The size of the mud content has a great impact on the workability of fresh concrete and the mechanical properties after hardening. The detection of its mud content requires testers to manually wash in a container, with low detection efficiency and relatively poor accuracy of the detection results. At the same time, when there are many detection batches, multiple people are needed to complete it quickly. Content of the Utility Model

[0003] To solve the above technical problems, the utility model proposes a magnetic stirring and screening device for fine aggregate mud content detection.

[0004] The technical solution of the utility model is realized as follows:

[0005] A magnetic stirring and screening device for fine aggregate mud content detection includes a base, a cup body, a stirring bar, a water inlet pipe, a drain pipe and a V-shaped square hole sieve. Among them, a motor and a magnetic rotor are installed in the base. The cup body is located at the top of the base. The stirring bar is located in the cup body. The water inlet pipe is vertically arranged, and the bottom end of the water inlet pipe is connected to the bottom of the side of the cup body. One end of the drain pipe is connected to the side of the cup body, and the other end of the drain pipe is inclined downward. The V-shaped square hole sieve is arranged in the cup body, and the height of the drain pipe is greater than the height of the V-shaped square hole sieve.

[0006] Further, the cup body is set to have a bottom diameter larger than the top diameter, and the bottom end of the cup body is open. A sealing ring is arranged at the top of the outer edge of the base. The bottom end of the cup body is in threaded cooperation with the base, and a plurality of outer discharge ports are arranged laterally on the base.

[0007] Further, the height of the bottom end of the cup body is less than the height of the sealing ring, and the part of the base located inside the cup body is a columnar structure. An external thread ring is rotatably installed at the bottom of the outer side of the cup body. An internal thread ring with a thread sleeved on the outside of the external thread ring is arranged on the base, and the outer discharge port is opened at the bottom of the outer side of the internal thread ring.

[0008] Further, the top height of the outer discharge port is greater than the top height of the base. An annular sliding groove is arranged on the outer side of the cup body. A sliding ring is arranged on the inner surface of the external thread ring, and the sliding ring is slidably sleeved in the annular sliding groove.

[0009] Furthermore, a rotating ring is fixedly installed at the top end of the external thread ring, and the outer side surface of the rotating ring is located outside the internal thread ring.

[0010] Furthermore, a frustum-shaped part is provided at the bottom end of the columnar structure of the base. The height of the top end of the frustum-shaped part is greater than the height of the bottom end of the external thread ring. The bottom end of the frustum-shaped part extends below the external thread ring, and the inclination angle of the generatrix of the frustum-shaped part is smaller than the inclination angle of the generatrix of the cup body.

[0011] Furthermore, an external discharge groove is provided on the outside of the base. The inner side wall surface of the external discharge groove is connected to the bottom end of the frustum-shaped part, and the inner side wall surface of the external discharge groove is a conical structure parallel to the generatrix of the cup body. A longitudinally arranged external discharge pipe is provided at the bottom end of the external discharge groove.

[0012] Furthermore, a cup cover is provided at the top end of the cup body, and a flushing pipe is connected to the cup cover.

[0013] The utility model has the following beneficial effects:

[0014] 1. It reduces the instability of manual operation and reduces the demand for the number of personnel due to excessive detection frequency. For traditional manual repeated flushing and sieving, it takes 15 minutes for a fine aggregate sample, while using this automatic device, it only takes 5 minutes to achieve the same effect, shortening the test detection time by 2 / 3.

[0015] 2. By the cup body rising to form an external discharge channel, the emptying and cleaning of the cup body are more convenient and efficient. Especially after using the scouring water flow from top to bottom in the flushing pipe, the functions of discharging the residual fine aggregate in the cup body, cleaning the cup body, and reverse flushing of the V-shaped square hole sieve are simultaneously achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of Embodiment 1 of the utility model;

[0017] Figure 2 is the utility model Figure 1 in the sectional view;

[0018] Figure 3 is a schematic diagram of Embodiment 2 of the utility model;

[0019] Figure 4 is the utility model Figure 3 in the sectional view;

[0020] Figure 5 is a schematic diagram of the external discharge port in Embodiment 2 of the utility model;

[0021] Figure 6 when the utility model Figure 4Partial schematic diagram.

[0022] In the figure: 1, base; 2, cup body; 3, stirring bar; 4, water inlet pipe; 5, drain pipe; 6, V-shaped square hole sieve; 7, sealing ring; 8, external discharge port; 9, external thread ring; 10, internal thread ring; 11, annular chute; 12, sliding ring; 13, rotating ring; 14, frustum-shaped part; 15, external discharge groove; 16, external discharge pipe; 17, flushing pipe. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1 and Figure 2 , in Embodiment 1, a magnetic stirring and screening device for detecting the mud content of fine aggregates includes a base 1, a cup body 2, a stirring bar 3, a water inlet pipe 4, a drain pipe 5, and a V-shaped square hole sieve 6. Among them, a motor and a magnetic rotor are installed in the base 1, the cup body 2 is located at the top of the base 1, the stirring bar 3 is located in the cup body 2, the water inlet pipe 4 is vertically arranged, and the bottom end of the water inlet pipe 4 is connected to the bottom of the side of the cup body 2. One end of the drain pipe 5 is connected to the side of the cup body 2, and the other end of the drain pipe 5 is inclined downward. The V-shaped square hole sieve 6 is arranged in the cup body 2, and the height of the drain pipe 5 is greater than the height of the V-shaped square hole sieve 6.

[0025] Specifically, the cup body 2 includes an upper part and a lower part distributed up and down. The V-shaped square hole sieve 6 is located between the upper part and the lower part. The water inlet pipe 4 is connected to the lower part, and the drain pipe 5 is connected to the upper part.

[0026] After removing the upper part and the V-shaped square hole sieve 6, put the fine aggregates into the cup body 2, then buckle the V-shaped square hole sieve 6 and the upper part on the lower part, then start the motor, and supply water to the cup body 2 through the water inlet pipe 4. The stirring bar 3 stirs the fine aggregates in the lower part. As the water level in the cup body 2 continuously rises, when the water level crosses the V-shaped square hole sieve 6 and reaches the pipe orifice position of the drain pipe 5, it can continuously drain from the drain pipe 5.

[0027] During the process of the water flowing out from the drain pipe 5, under the agitation of the stirring bar 3 and the pressure of the water in the cup body 2, the centrifugal force separates the fine particles and soil components in the fine aggregates. The water flow carries the fine particles and soil components in the fine aggregates through the V-shaped square hole sieve 6 and discharges from the drain pipe 5. The remaining fine particles in the fine aggregates are blocked in the cup body 2 by the V-shaped square hole sieve 6, and rinse repeatedly until the water in the container is clear.

[0028] After applying the above solution, compared with manually washing fine aggregates in the prior art, it has the advantages of higher efficiency and reduced manual labor intensity.

[0029] Please refer to Figures 3 to 6 , in Embodiment 2, the cup body 2 is set with a bottom diameter larger than the top diameter, and the bottom end of the cup body 2 is open. A sealing ring 7 is provided at the top of the outer edge of the base 1. The bottom end of the cup body 2 is in threaded cooperation with the base 1, and a plurality of outer discharge ports 8 are provided laterally on the base 1.

[0030] By threadedly mating the bottom of the cup body 2 with the base 1, the sealing ring 7 is abutted against the inner wall of the cup body 2 to seal the cup body 2. In addition, by rotating the cup body 2 upward, the sealing ring 7 is separated from the inner wall of the cup body 2, and an outer discharge channel is formed between the sealing ring 7 and the cup body 2. Then, the residual fine aggregates in the cup body 2 are discharged through the outer discharge channel. At the same time, water can be continuously supplied into the water inlet pipe 4, and by using the impact of the water flow and the centrifugal force generated when the agitator 3 rotates, the fine aggregates can be discharged more thoroughly from the cup body 2. In this way, the effect of facilitating the emptying of the fine aggregates in the cup body 2 and the cleaning of the cup body 2 is achieved.

[0031] The height of the bottom end of the cup body 2 is less than the height of the sealing ring 7, and the part of the base 1 located inside the cup body 2 is a columnar structure. An external thread ring 9 is rotatably installed at the bottom of the outside of the cup body 2. An internal thread ring 10 with a thread sleeved outside the external thread ring 9 is provided on the base 1, and the outer discharge port 8 is opened at the bottom of the outer side of the internal thread ring 10. Specifically, when the cup body 2 moves up and down inside the external thread ring 9, the external thread ring 9 has a supporting effect on the cup body 2.

[0032] The top height of the outer discharge port 8 is greater than the top height of the base 1, so that when the cup body 2 rises to the highest position, the height of its bottom end is greater than the top height of the base 1. Furthermore, the top height of the outer discharge channel formed between the cup body 2 and the sealing ring 7 is greater than the top height of the base 1, which is more convenient for the discharge of fine aggregates.

[0033] An annular sliding groove 11 is provided on the outer side of the cup body 2, a sliding ring 12 is provided on the inner surface of the external thread ring 9, and the sliding ring 12 is slidably sleeved in the annular sliding groove 11. A rotating ring 13 is fixedly installed at the top of the external thread ring 9, and the outer side of the rotating ring 13 is located outside the internal thread ring 10. Specifically, when controlling the up and down movement of the cup body 2, the rotating ring 13 can be directly rotated. During the process of the rotating ring 13 driving the external thread ring 9 to rotate, the cup body 2 can remain in a non-rotating state, thereby preventing the rotation of the cup body 2 from affecting the external pipelines of the water inlet pipe and the drain pipe 5.

[0034] At the bottom end of the columnar structure of the base 1, there is a frustum-shaped part 14. The top height of the frustum-shaped part 14 is greater than the bottom height of the external thread ring 9. The bottom end of the frustum-shaped part 14 extends below the external thread ring 9, and the inclination angle of the generatrix of the frustum-shaped part 14 is smaller than the inclination angle of the generatrix of the cup body 2. Specifically, during the rising process of the cup body 2, the fine aggregate on the base 1 will fall onto the frustum-shaped part 14 after passing through the outer discharge channel between the cup body 2 and the sealing ring 7. At this time, the frustum-shaped part 14 can make the fine aggregate leave the space of the cup body 2 more quickly and completely by using its guiding function.

[0035] An outer discharge groove 15 is provided on the outside of the base 1. The inner side wall surface of the outer discharge groove 15 is connected to the bottom end of the frustum-shaped part 14, and the inner side wall surface of the outer discharge groove 15 is a conical structure parallel to the generatrix of the cup body 2. A longitudinally arranged outer discharge pipe 16 is provided at the bottom end of the outer discharge groove 15. When the remaining fine aggregate is discharged from the outer discharge port 8, it enters the outer discharge groove 15, and then the outer discharge pipe 16 is used to discharge the fine aggregate uniformly.

[0036] A cup cover is provided at the top end of the cup body 2, and a flushing pipe 17 is connected to the cup cover. By flushing the V-shaped square hole sieve 6 from top to bottom with the water flow in the flushing pipe 17, when emptying the cup body 2, the outer discharge of the remaining fine aggregate in the cup body 2, the cleaning of the cup body 2, and the cleaning of the V-shaped square hole sieve 6 can be realized simultaneously.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A magnetic stirring screening device for detecting the mud content of fine aggregate, characterized in that: The invention comprises a base (1), a cup body (2), a stirrer (3), a water inlet pipe (4), a drain pipe (5) and a V-shaped square hole screen (6), wherein a motor and a magnetic rotor are installed in the base (1), the cup body (2) is located at the top of the base (1), the stirrer (3) is located in the cup body (2), the water inlet pipe (4) is vertically arranged, and the bottom end of the water inlet pipe (4) is connected to the bottom of the side of the cup body (2), one end of the drain pipe (5) is connected to the side of the cup body (2), and the other end of the drain pipe (5) is inclined downward, and the V-shaped square hole screen (6) is arranged in the cup body (2), and the height of the drain pipe (5) is greater than the height of the V-shaped square hole screen (6).

2. The magnetic stirring screening device for detecting the mud content of fine aggregate according to claim 1, characterized in that: The cup body (2) is configured such that the diameter of the bottom end is larger than the diameter of the top end, and the bottom end of the cup body (2) is open, a sealing ring (7) is provided at the top end of the outer edge of the base (1), the bottom end of the cup body (2) is threadedly matched with the base (1), and a plurality of external discharge ports (8) are provided on the side of the base (1).

3. The magnetic stirring screening device for detecting the mud content of fine aggregate according to claim 2, characterized in that: The bottom end height of the cup body (2) is less than the height of the sealing ring (7), and the portion of the base (1) located inside the cup body (2) is a columnar structure, an external threaded ring (9) is rotatably mounted on the bottom of the outer side of the cup body (2), an internal threaded ring (10) is provided on the base (1) and is threadedly sleeved on the outside of the external threaded ring (9), and the external discharge port (8) is opened at the bottom of the outer side of the internal threaded ring (10).

4. A magnetic stirring screening device for detecting the mud content of fine aggregate according to claim 3, characterized in that: The top height of the outer discharge port (8) is greater than the top height of the base (1); an annular groove (11) is provided on the outer side surface of the cup body (2); a slip ring (12) is provided on the inner surface of the external threaded ring (9); and the slip ring (12) is slidably mounted in the annular groove (11).

5. A magnetic stirring screening device for detecting the mud content of fine aggregate according to claim 4, characterized in that: A rotating ring (13) is fixedly mounted on the top end of the external threaded ring (9), and the outer side surface of the rotating ring (13) is located outside the internal threaded ring (10).

6. The magnetic stirring screening device for detecting the mud content of fine aggregate according to claim 3, characterized in that: A frustum-shaped portion (14) is provided at the bottom end of the columnar structure of the base (1), the top end height of the frustum-shaped portion (14) is greater than the bottom end height of the external thread ring (9), the bottom end of the frustum-shaped portion (14) extends below the external thread ring (9), and the generatrix inclination angle of the frustum-shaped portion (14) is less than the generatrix inclination angle of the cup body (2).

7. A magnetic stirring screening device for detecting the mud content of fine aggregate according to claim 6, characterized in that: An outer row groove (15) is arranged outside the base (1), the inner wall surface of the outer row groove (15) is connected to the bottom end of the frustum-shaped part (14), and the inner wall surface of the outer row groove (15) is a conical structure parallel to the generatrix of the cup body (2), and the bottom end of the outer row groove (15) is provided with an outer row pipe (16) arranged longitudinally.

8. The magnetic stirring screening device for detecting the mud content of fine aggregate according to claim 2, characterized in that: A cup cover is provided at the top end of the cup body (2), and a flushing pipe (17) is connected to the cup cover.

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