Special online basicity detector for polyaluminum chloride

Abstract

The utility model discloses a special online basicity detector for polyaluminum chloride, and relates to the technical field of detection devices. A motor is arranged in the box body, the output shaft end of the motor is fixedly connected with a drive plate, a rotating shaft is connected to the top face of the box body in a penetrating and rotating mode, a grooved wheel is fixedly connected to the side wall of the rotating shaft, the grooved wheel corresponds to and is matched with the drive plate, and a lengthening shaft is fixedly connected to the top end of the rotating shaft. A movable plate is fixedly connected to the side wall of the lengthening shaft, a ring sleeve is fixedly connected to the plate end of the movable plate, and a storage barrel is placed in a ring opening of the ring sleeve; according to the device, multiple groups of experiments can be carried out to provide more data support, so that the basicity characteristic of polyaluminum chloride can be known more comprehensively, the data accuracy is improved, the storage barrel can be adsorbed and fixed, the storage barrel is prevented from shaking or falling off when a solution in the storage barrel is stirred, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, specifically to an online basicity detector for polyaluminum chloride. Background Technology

[0002] Polyaluminum chloride (PAC) is a multivalent electrolyte, a water-soluble inorganic polymer intermediate between aluminum chloride and aluminum hydroxide, with wide applications, especially in water treatment. Basicity is an indicator of the hydroxide ion content in polyaluminum chloride, and its level directly affects the flocculation effect and stability of polyaluminum chloride; therefore, basicity testing of polyaluminum chloride is necessary.

[0003] Currently, the basicity of polyaluminum chloride (PAC) can be detected using potentiometric titration. However, current potentiometric titrators have some shortcomings. They cannot perform multiple sets of experiments for comparison, resulting in an incomplete understanding of the basicity characteristics of PAC. Furthermore, during stirring, the storage container may shake or even fall off the operating table, affecting safety. To address these issues, the inventors have proposed a dedicated online basicity analyzer for PAC to solve these problems. Utility Model Content

[0004] To address the current limitations of potentiometric titration in detecting the basicity of polyaluminum chloride (PAC), such as the inability to perform multiple sets of experiments for comparison and the tendency of the storage container to shake or even fall off the operating table during stirring, this invention aims to provide a dedicated online basicity analyzer for PAC.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an online basicity detector for polyaluminum chloride, comprising a housing, a motor installed inside the housing, a dial fixedly connected to the output shaft of the motor, a rotating shaft rotatably connected to the top surface of the housing, a grooved wheel fixedly connected to the side wall of the rotating shaft, the grooved wheel corresponding to and cooperating with the dial, an extension shaft fixedly connected to the top of the rotating shaft, a movable plate fixedly connected to the side wall of the extension shaft, a ring fixedly connected to the end of the movable plate, a storage cylinder placed at the opening of the ring, a base fixedly connected to the outer wall of the housing, an electric cylinder embedded in the top surface of the base, a support plate fixedly connected to the output shaft of the electric cylinder, the support plate corresponding to the ring, an ultrasonic generator and an ultrasonic transducer arranged directly above the support plate, a burette arranged on one side of the ultrasonic transducer, and a reference electrode and an indicator electrode arranged on the other side of the ultrasonic transducer.

[0006] Preferably, the motor has a fixed base on its side wall, which is fixedly connected to the inner bottom wall of the housing. The bottom end of the rotating shaft extends into the housing and is rotatably connected to the housing. The motor is installed via the fixed base. When the motor is started, the dial rotates under the action of the motor output shaft. Through the interaction between the dial and the grooved wheel, the rotating shaft can rotate intermittently, which in turn causes the extended shaft to drive the movable plates to rotate intermittently. There are four movable plates, and the four movable plates are arranged in an array around the axis of the extended shaft. The support plate... An electric suction cup is embedded in the top surface. The working end of the electric suction cup corresponds to and attracts the bottom surface of the storage cylinder. When the dial and the groove wheel cooperate, the movable plate can rotate intermittently, and the rotation angle is 90 degrees each time to ensure that the ring after rotation corresponds to the support plate. When the electric cylinder is activated, the support plate can be raised under the action of the output shaft of the electric cylinder so that the electric suction cup corresponds to the storage cylinder in the ring directly above it. The electric suction cup is activated to adsorb and fix the storage cylinder, thereby preventing the storage cylinder from shaking or falling when the solution in the storage cylinder is stirred.

[0007] Preferably, the side wall of the ultrasonic generator is provided with a connecting seat, and the side of the base facing away from the housing is fixedly connected to a support. The side wall of the connecting seat is fixedly connected to the side wall of the support. The side wall of the burette is fixedly connected to a protrusion, and the side wall of the protrusion is fixedly connected to the side wall of the connecting seat. The ultrasonic generator can generate a high-frequency sinusoidal voltage signal, and the ultrasonic transducer can convert the high-frequency sinusoidal voltage signal into high-frequency mechanical vibration. When a certain amount of polyaluminum chloride sample is placed in the storage cylinder and dissolved in water, the high-frequency vibration generated by the ultrasonic transducer can cause the polyaluminum chloride in the storage cylinder to dissolve. Aluminum is uniformly dispersed in water to avoid local concentrations that are too high or too low. The side of the connector facing away from the convex seat is fixedly connected to the housing. The reference electrode and the indicator electrode both extend into the housing. The burette contains a standard hydrochloric acid solution for potentiometric titration of the sample. As the titrant is added, a chemical reaction occurs, causing a change in the concentration of the analyte ion, which in turn causes a corresponding change in the potential of the indicator electrode. Near the titration endpoint, the concentration of the analyte ion changes abruptly, causing a sudden jump in the electrode potential. By measuring this potential change, the titration endpoint can be determined, and the basicity can then be calculated.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: multiple sets of experiments can be conducted to provide more data support for comparison, thereby helping to understand the basicity characteristics of polyaluminum chloride more comprehensively and improve data accuracy. When the motor is started, the interaction between the dial and the grooved wheel can make the movable plate rotate intermittently, thereby allowing the four storage cylinders to be titrated sequentially for comparison. When the storage cylinder is lifted upward by the electric cylinder so that the ultrasonic transducer is immersed in the solution in the storage cylinder, the storage cylinder can be adsorbed and fixed by the electric suction cup to prevent the storage cylinder from shaking or falling when the solution in the storage cylinder is stirred, thereby improving safety. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model.

[0012] Figure 3 This is an enlarged view of section A of this utility model.

[0013] In the diagram: 1. Housing; 2. Motor; 3. Mounting base; 4. Dial; 5. Rotating shaft; 6. Grooved wheel; 7. Extended shaft; 8. Movable plate; 9. Ring; 10. Storage cylinder; 11. Base; 12. Electric cylinder; 13. Support plate; 14. Electric suction cup; 15. Support; 16. Connecting seat; 17. Ultrasonic generator; 18. Ultrasonic transducer; 19. Thrust; 20. Burette; 21. Housing; 22. Reference electrode; 23. Indicating electrode. Detailed Implementation

[0014] 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.

[0015] Example: Figure 1-3As shown, this utility model provides an online basicity detector for polyaluminum chloride, including a housing 1. A motor 2 is installed inside the housing 1. A dial 4 is fixedly connected to the output shaft of the motor 2. A rotating shaft 5 is rotatably connected to the top surface of the housing 1. A grooved wheel 6 is fixedly connected to the side wall of the rotating shaft 5. The grooved wheel 6 corresponds to and cooperates with the dial 4. An extension shaft 7 is fixedly connected to the top of the rotating shaft 5. A movable plate 8 is fixedly connected to the side wall of the extension shaft 7. A ring 9 is fixedly connected to the end of the movable plate 8. A storage cylinder 10 is placed at the opening of the ring 9. A base 11 is fixedly connected to the outer wall of the box 1. An electric cylinder 12 is embedded in the top surface of the base 11. A support plate 13 is fixedly connected to the output shaft end of the electric cylinder 12. The support plate 13 corresponds to the ring 9. An ultrasonic generator 17 and an ultrasonic transducer 18 are arranged directly above the support plate 13. A burette 20 is arranged on one side of the ultrasonic transducer 18. A reference electrode 22 and an indicator electrode 23 are arranged on the other side of the ultrasonic transducer 18.

[0016] The side wall of the motor 2 is provided with a fixing seat 3, which is fixedly connected to the inner bottom wall of the housing 1. The bottom end of the rotating shaft 5 extends into the housing 1, and the rotating shaft 5 is rotatably connected to the housing 1.

[0017] By adopting the above technical solution, the motor 2 is installed through the fixed base 3. When the motor 2 is started, the dial 4 rotates under the action of the output shaft of the motor 2. Through the cooperation between the dial 4 and the grooved wheel 6, the rotating shaft 5 can rotate intermittently, which in turn allows the extended shaft 7 to drive the movable plate 8 to rotate intermittently.

[0018] There are four movable plates 8, and the four movable plates 8 are arranged in an array with the axis of the extended shaft 7 as the center. An electric suction cup 14 is embedded in the top surface of the support plate 13. The working end of the electric suction cup 14 corresponds to and attracts the bottom surface of the storage cylinder 10.

[0019] By adopting the above technical solution, when the dial 4 and the grooved wheel 6 are engaged, the movable plate 8 can rotate intermittently, and the angle of each rotation is ninety degrees, so as to ensure that the ring 9 after rotation corresponds to the support plate 13. When the electric cylinder 12 is activated, the support plate 13 can be raised under the action of the output shaft of the electric cylinder 12, so that the electric suction cup 14 corresponds to the storage cylinder 10 in the ring 9 directly above it. The electric suction cup 14 is activated to adsorb and fix the storage cylinder 10, thereby preventing the storage cylinder 10 from shaking or falling when the solution in the storage cylinder 10 is stirred.

[0020] The ultrasonic generator 17 has a connecting seat 16 on its side wall. The base 11 is fixedly connected to the side of the housing 1 facing away from the housing 1 with a support 15. The side wall of the connecting seat 16 is fixedly connected to the side wall of the support 15. The burette 20 has a protrusion 19 fixedly connected to its side wall. The side wall of the protrusion 19 is fixedly connected to the side wall of the connecting seat 16.

[0021] By adopting the above technical solution, the ultrasonic generator 17 can generate a high-frequency sinusoidal voltage signal, and the ultrasonic transducer 18 can convert the high-frequency sinusoidal voltage signal into high-frequency mechanical vibration. When a certain amount of polyaluminum chloride sample is placed in the storage cylinder 10 and dissolved in water, the high-frequency vibration generated by the ultrasonic transducer 18 can make the polyaluminum chloride in the storage cylinder 10 uniformly dispersed in the water, avoiding the situation of local concentration being too high or too low.

[0022] The housing 21 is fixedly connected to the side of the connecting seat 16 facing away from the boss 19, and the reference electrode 22 and the indicator electrode 23 both extend into the housing 21.

[0023] By adopting the above technical solution, the burette 20 contains a standard hydrochloric acid solution for potentiometric titration of the sample. As the titrant is added, a chemical reaction occurs, causing a change in the concentration of the analyte ion, which in turn causes a corresponding change in the potential of the indicator electrode 23. Near the titration endpoint, the concentration of the analyte ion undergoes a sudden change, resulting in a sudden jump in the electrode potential. By measuring this potential change, the titration endpoint can be determined, and the basicity can be calculated. The basicity calculation formula is: Basicity = (C × V × 10⁻³ × 3 × 56.08) ÷ M × 100%, where V is the amount of standard hydrochloric acid solution consumed, C is the concentration of hydrochloric acid, M is the mass of the polyaluminum chloride sample, and 56.08 is the molar mass of aluminum.

[0024] Working principle: When using this utility model, a certain amount of polyaluminum chloride sample is placed in the storage cylinder 10 and dissolved in water. The motor 2 is started and the dial 4 rotates under the action of the output shaft of the motor 2. Through the cooperation between the dial 4 and the grooved wheel 6, the rotating shaft 5 can rotate intermittently, which in turn can drive the extended shaft 7 to drive the movable plate 8 to rotate intermittently, so as to ensure that the ring 9 after rotation corresponds to the support plate 13.

[0025] Next, the electric cylinder 12 is started, and the support plate 13 can be raised under the action of the output shaft of the electric cylinder 12 so that the electric suction cup 14 corresponds to the storage cylinder 10 in the ring 9 directly above it. The electric suction cup 14 is started to adsorb and fix the storage cylinder 10.

[0026] Subsequently, the high-frequency vibration generated by the ultrasonic transducer 18 causes the polyaluminum chloride in the storage cylinder 10 to be uniformly dispersed in the water, avoiding local concentrations that are too high or too low. At the same time, the burette 20 performs potentiometric titration on the storage cylinder 10 directly below. As the titrant is added, a chemical reaction occurs, causing a change in the concentration of the analyte ions, which in turn causes a corresponding change in the potential of the indicator electrode 23. Near the titration endpoint, the concentration of the analyte ions undergoes a sudden change, causing a sudden jump in the electrode potential. By measuring this potential change, the titration endpoint can be determined, and the basicity can then be calculated.

[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A special-purpose on-line base number detector for polyaluminum chloride, comprising a box (1), characterized in that: The inside of the box (1) is provided with a motor (2), the output shaft end of the motor (2) is fixedly connected with a dial (4), the top surface of the box (1) is rotatably connected with a rotating shaft (5), the side wall of the rotating shaft (5) is fixedly connected with a groove wheel (6), the groove wheel (6) corresponds and cooperates with the dial (4), the top end of the rotating shaft (5) is fixedly connected with an extension shaft (7), the side wall of the extension shaft (7) is fixedly connected with a movable plate (8), the plate end of the movable plate (8) is fixedly connected with a ring sleeve (9), the ring mouth of the ring sleeve (9) is placed with a storage cylinder (10), the outside wall of the box (1) is fixedly connected with a base (11), the top surface of the base (11) is inlaid with an electric cylinder (12), the output shaft end of the electric cylinder (12) is fixedly connected with a supporting plate (13), the supporting plate (13) corresponds to the ring sleeve (9), the ultrasonic generator (17) and the ultrasonic transducer (18) are arranged above the supporting plate (13), the titration tube (20) is arranged on one side of the ultrasonic transducer (18), the reference electrode (22) and the indicating electrode (23) are arranged on the other side of the ultrasonic transducer (18).

2. The online basicity analyzer for polyaluminum chloride as described in claim 1, characterized in that, The side wall of the motor (2) is provided with a fixing seat (3), and the fixing seat (3) is fixedly connected with the inner bottom wall of the box (1).

3. The on-line special polyaluminum chloride base degree detector according to claim 1, characterized in that, The bottom end of the rotating shaft (5) extends into the box (1), and the rotating shaft (5) is rotatably connected with the box (1).

4. The online basicity analyzer for polyaluminum chloride as described in claim 1, characterized in that, The number of the movable plate (8) is four, and the four movable plates (8) are arrayed around the axis of the extension shaft (7).

5. The on-line special polyaluminum chloride base degree detector according to claim 1, characterized in that, The top surface of the supporting plate (13) is inlaid with an electric suction cup (14), and the working end of the electric suction cup (14) corresponds and is attracted to the bottom surface of the storage cylinder (10).

6. The online basicity analyzer for polyaluminum chloride as described in claim 1, characterized in that, The side wall of the ultrasonic generator (17) is provided with a connecting seat (16), one side of the base (11) away from the box (1) is fixedly connected with a support (15), and the side wall of the connecting seat (16) is fixedly connected with the side wall of the support (15).

7. The on-line special polyaluminum chloride base degree detector according to claim 6, characterized in that, The side wall of the titration tube (20) is fixedly connected with a convex seat (19), and the side wall of the convex seat (19) is fixedly connected with the side wall of the connecting seat (16).

8. The online basicity analyzer for polyaluminum chloride as described in claim 7, characterized in that, One side of the connecting seat (16) away from the convex seat (19) is fixedly connected with a shell (21), and the reference electrode (22) and the indicating electrode (23) extend into the shell (21).

Images