Device for testing activity of lime by hydrochloric acid titration method

Abstract

The utility model discloses a hydrochloric acid titration lime activity inspection device, which relates to the technical field of material performance detection and comprises a body with a positioning frame fixedly mounted at the top, a cushion frame is placed on the body, a placing opening for placing a container is formed in the top of the cushion frame, and an elastic guide block is vertically and movably inserted into the bottom of the placing opening. A connecting plate is rotationally mounted on the side surface of the guide block; according to the scheme, a container containing a lime water solution is placed in a placing opening, the container extrudes a guide block to move downwards until the top of the guide block is flush with the bottom wall of the placing opening, the bottom end of a connecting plate abuts against the inner side of a positioning frame, and the container automatically moves to the center of the top of the body, so that the container can be located at the optimal titration position; the reaction with a lime water solution is sufficient and stable, high-precision detection data can be obtained, the cushion frame can be quickly placed without careful alignment, and the placement convenience is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of material performance testing, specifically to a device for testing the activity of lime by hydrochloric acid titration. Background Technology

[0002] Hydrochloric acid titration is a classic method recognized in the industry for determining the activity of lime. However, the traditional testing process reveals many inconveniences and defects in actual operation. The placement of the container containing the lime solution relies entirely on manual operation. Operators must carefully place the container and the support bracket on the titration apparatus in the appropriate area. Due to the lack of precise positioning assistance, it is difficult to ensure the consistency of the container's position each time. During the subsequent hydrochloric acid titration, this can lead to uneven droplet path and landing point, preventing the reaction between lime and hydrochloric acid from proceeding fully and synchronously. This results in large fluctuations in the test data, failing to accurately reflect the true activity of lime and introducing significant uncertainty into production process control.

[0003] Therefore, those skilled in the art have provided a device for testing the activity of lime by hydrochloric acid titration to solve the problem mentioned above. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a device for testing the activity of lime using hydrochloric acid titration.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A device for testing the activity of lime by hydrochloric acid titration includes a main body with a positioning frame fixedly installed on the top, a pad placed on the main body, a placement opening for placing a container on the top of the pad, a flexible guide block vertically and movably inserted into the bottom of the placement opening, and a connecting plate rotatably installed on the side of the guide block; when a container containing lime aqueous solution is placed in the placement opening, the container squeezes the guide block down until the top of the guide block is flush with the bottom wall of the placement opening, the bottom end of the connecting plate abuts against the inner side of the positioning frame, and the container automatically moves to the top center position of the main body.

[0007] Preferably, the positioning frame is set as a square, and the vertical cross-section of the positioning frame is set as an "L" shaped structure.

[0008] Preferably, a vertical rod is fixedly installed on the inner bottom wall of the pad frame, a guide block is sleeved on the top of the vertical rod, and a spring is provided inside the guide block.

[0009] Preferably, the pad frame has an internal cavity for inserting the positioning frame and rotating the connecting plate, and the inner bottom wall of the pad frame is inclined from the middle to the four sides.

[0010] Preferably, the bottom diameter of the placement opening is equal to the bottom outer diameter of the container, and the top of the placement opening is open outwards.

[0011] In summary, this utility model has the following beneficial technical effects:

[0012] To address the issue of operators needing to place containers and support brackets in the appropriate areas of the titration apparatus, this solution involves placing a container filled with lime solution into the placement port. The container then compresses the guide block downwards until the top of the guide block is flush with the bottom wall of the placement port, and the bottom of the connecting plate abuts against the inner side of the positioning frame. The container automatically moves to the top center of the main body, ensuring it is in the optimal titration position. This allows for uniform hydrochloric acid addition and a thorough and stable reaction with the lime solution, resulting in high-precision test data. The support bracket can be placed quickly without requiring careful alignment, improving the ease of placement. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a front view cross-sectional structural diagram of the pad holder without a container placed on it.

[0016] Figure 3 This is a front view cross-sectional structural diagram of the pad holder in the container placement state of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Main body; 2. Pad frame; 3. Positioning frame; 4. Placement opening; 5. Guide block; 6. Connecting plate; 7. Spring; 8. Vertical rod. Detailed Implementation

[0018] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0019] An apparatus for testing the activity of lime by hydrochloric acid titration, referring to... Figure 1-3 The main body 1 includes a positioning frame 3 fixedly installed on the top. The positioning frame 3 is set as a square, and the vertical cross section of the positioning frame 3 is set as an "L" shaped structure. This special shape plays a key guiding role in the subsequent positioning process.

[0020] A pad 2 is placed on the main body 1. The top of the pad 2 has a placement opening 4 for placing a container. The bottom diameter of the placement opening 4 is equal to the bottom outer diameter of the container, forming a stable initial support. The top of the placement opening 4 is open to the outside, which greatly reduces the difficulty of placing the container and improves the smoothness of operation.

[0021] A flexible guide block 5 is vertically and movably inserted into the bottom of the placement port 4. Furthermore, a vertical rod 8 is fixedly installed on the inner bottom wall of the pad frame 2, and the guide block 5 is sleeved on the top of the vertical rod 8. The two fit tightly together and can slide relative to each other, ensuring that the guide block 5 rises and falls smoothly on the trajectory defined by the vertical rod 8. A spring 7 is installed inside the guide block 5 to provide the source power for its elastic movement.

[0022] A connecting plate 6 is rotatably mounted on the side of the guide block 5 via a pin or hinge, giving the connecting plate 6 flexible rotation capability so that it can adjust its posture in real time with the displacement of the guide block 5.

[0023] When a container filled with lime water solution is placed in the placement port 4, the container squeezes the guide block 5 down until the top of the guide block 5 is flush with the bottom wall of the placement port 4, and the bottom of the connecting plate 6 abuts against the inside of the positioning frame 3. The container then automatically moves to the top center position of the main body 1.

[0024] The pad frame 2 has an internal cavity for the insertion of the positioning frame 3 and the rotation of the connecting plate 6. The inner bottom wall of the pad frame 2 is inclined from the middle to the four sides, which makes it easy to quickly place the pad frame 2 on the positioning frame 3 without deliberate alignment. The inclined setting allows the connecting plate 6 to rotate at a wider angle, which can further improve the placement efficiency of the pad frame 2.

[0025] The operating mechanism is as follows: When the container holding the lime solution is gently placed into the placement opening 4, the container's gravity is instantly applied to the guide block 5, driving it to overcome the elastic force of the spring 7 and slide smoothly down along the vertical rod 8. As the guide block 5 sinks, the connecting plate 6 rotates synchronously around the pin. Until the top of the guide block 5 is flush with the bottom wall of the placement opening 4, the spring 7 reaches a new compression equilibrium state. At this time, the bottom end of the connecting plate 6 precisely abuts against the inner side of the positioning frame 3. With the strong constraint of the "L"-shaped structure of the positioning frame 3 and the rigid transmission of the connecting plate 6, the container automatically and accurately moves to the top center position of the main body 1, thus completing the precise positioning and providing a foundation for the standardized operation of subsequent hydrochloric acid titration.

[0026] Afterward, the operator can follow the standard hydrochloric acid titration procedure, using a burette to accurately add hydrochloric acid solution to a precisely positioned container to determine the activity of lime. During the titration process, because the container is always in the optimal position, the hydrochloric acid is added evenly, and the reaction with the lime solution is complete and stable, enabling the acquisition of high-precision test data.

[0027] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A device for testing the activity of lime by hydrochloric acid titration, characterized in that: The body (1) is fixedly installed with a positioning frame (3) on the top, and a cushion frame (2) is placed on the body (1), the top of the cushion frame (2) is provided with a placing opening (4) for placing a container, the bottom of the placing opening (4) is vertically movably inserted with a elastic guide block (5), and the side surface of the guide block (5) is rotatably installed with a connecting plate (6); When the container containing lime water solution is placed in the placing opening (4), the container extrudes the guide block (5) to move downward to the top of the guide block (5) flush with the bottom wall of the placing opening (4), and the bottom end of the connecting plate (6) abuts against the inner side of the positioning frame (3), so that the container is automatically displaced to the top central position of the body (1).

2. A device for testing the activity of lime by hydrochloric acid titration according to claim 1, characterized in that: The positioning frame (3) is square, and the vertical section of the positioning frame (3) is provided with an L-shaped structure.

3. A device for testing the activity of lime by hydrochloric acid titration according to claim 2, characterized in that: The inner bottom wall of the cushion frame (2) is fixedly installed with a vertical rod (8), the guide block (5) is sleeved on the top of the vertical rod (8), and the guide block (5) is provided with a spring (7) inside.

4. A device for testing the activity of lime by hydrochloric acid titration according to claim 3, characterized in that: The inner bottom wall of the cushion frame (2) is fixedly installed with a vertical rod (8), the guide block (5) is sleeved on the top of the vertical rod (8), and the guide block (5) is provided with a spring (7) inside.

5. A device for testing the activity of lime by hydrochloric acid titration according to claim 4, characterized in that: The bottom of the placing opening (4) is equal in diameter to the bottom outer diameter of the container, and the top of the placing opening (4) is outwardly open.

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