A rapid determination device for inorganic binder ash content
By combining a burette, flow valve, peristaltic pump, magnetic stirrer, and stirring blade, the problem of uniformity and accuracy in the titration process of inorganic binder ash dosage determination was solved, realizing automated calculation and improving determination efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING JINGANG ROAD ENGINEERING CONSTRUCTION CO LTD
- Filing Date
- 2025-04-02
- Publication Date
- 2026-06-19
AI Technical Summary
In existing methods for determining the dosage of inorganic binder ash, the uniformity and accuracy of the titration process are insufficient, and manual operation leads to low efficiency.
The system employs a combination design of burette, flow valve, peristaltic pump, magnetic stirrer, magnetic rod and stirring blade to achieve precise flow control and uniform mixing of the titrant, and automatically calculates the dosage of cement or lime using a potentiometer.
It improves the accuracy and efficiency of titration measurements, ensures the uniformity of the titration process and automated calculations, and reduces errors caused by manual operation.
Smart Images

Figure CN224383230U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inorganic binder measurement technology, specifically to a rapid measurement device for inorganic binder ash dosage. Background Technology
[0002] Inorganic binders commonly used are cement stabilizers and lime stabilizers. EDTA titration is frequently used to determine the dosage of cement and lime. Record the volume V1 of the EDTA disodium standard solution in the burette. Then, titrate with the EDTA disodium standard solution, shaking constantly and carefully observing the color of the solution. When the solution turns purple, slow the titration speed and shake well. Continue titrating until the solution reaches a pure blue endpoint, recording the volume V2 of the EDTA disodium standard solution in the burette. Calculate the difference between V1 and V2, which represents the amount of EDTA disodium standard solution consumed. The dosage of cement or lime can then be calculated using a standard curve of EDTA disodium standard solution consumption.
[0003] Traditional testing methods rely on manual operation of "titration and shaking simultaneously," which fails to achieve overall uniformity and affects accuracy. The consumption of EDTA disodium solution is read manually using the numbers V1-V2, which is neither intuitive nor accurate. The calculation of cement or lime dosage by substituting the EDTA disodium solution consumption value into the standard curve is also done manually, resulting in low efficiency. Utility Model Content
[0004] The technical problem this invention aims to solve is to overcome existing defects and provide a rapid measurement device for the dosage of inorganic binder ash. Through the inclusion of a burette, flow valve, peristaltic pump, magnetic stirrer, magnetic rod, and stirring paddle, the peristaltic pump delivers the titrant through the burette into an Erlenmeyer flask. The flow valve accurately measures the flow rate of the titrant, and the magnetic stirrer drives the magnetic rod to rotate rapidly, thus mixing the test liquid and ensuring the uniformity of the titration process and the accuracy of the titration measurement. This effectively solves the problems in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid dosage determination device for inorganic binder ash, comprising a potentiometer body, a magnetic stirrer disposed on one side of the potentiometer body, a peristaltic pump disposed on the upper side of the potentiometer body, a sample bottle connected to one side of the peristaltic pump via a pipe, an air inlet pipe installed at the upper end of the sample bottle, a feed pipe disposed on the upper side of the peristaltic pump, a flow valve disposed at the end of the feed pipe away from the peristaltic pump, a burette disposed below the flow valve, a triangular flask disposed on the upper side of the magnetic stirrer, a magnetic rod disposed on the inner bottom side, and a stirring blade disposed on the upper side of the center of the magnetic rod.
[0006] Furthermore, a support plate is provided on the upper side of the flow valve, a reference electrode is installed on the lower side of the support plate, and an indicator electrode is provided on one side of the reference electrode.
[0007] Furthermore, a sliding rod is installed on one side of the support plate, and a support frame is installed on the sliding rod.
[0008] Furthermore, the reference electrode and the indicator electrode are connected to the potentiometer body via a power cord, and the potentiometer body is fixedly connected to the magnetic stirrer.
[0009] Furthermore, the sample bottle is inserted into the air inlet pipe, and the support frame is tightened to the sliding rod by bolts.
[0010] Furthermore, the magnetic rod is wrapped with a polyvinyl chloride shell, and the stirring paddle has five blades.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This invention utilizes a burette, flow valve, peristaltic pump, magnetic stirrer, magnetic rod, and stirring paddle. The peristaltic pump delivers the titrant through the burette into the Erlenmeyer flask. The flow valve precisely measures the flow rate of the titrant. The magnetic stirrer drives the magnetic rod to rotate rapidly, mixing the solution and ensuring uniformity and accuracy during titration. The flow valve accurately measures the amount of titrant used, further guaranteeing measurement precision. The potentiometer, indicator electrode, and reference electrode accurately measure the change in solution potential at the end of titration. Based on the solution volume measured by the flow valve, the potentiometer's built-in formula automatically calculates the required amount of cement or lime. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the magnetic rod on the bottom inner side of the triangular flask;
[0015] Figure 3 This utility model Figure 1 Enlarged structural diagram of the sliding rod and support plate.
[0016] In the diagram: 1. Magnetic stirrer; 2. Potentiometer body; 3. Sample bottle; 4. Peristaltic pump; 5. Burette; 6. Erlenmeyer flask; 7. Indicating electrode; 8. Reference electrode; 9. Support frame; 10. Flow valve; 11. Feed pipe; 12. Magnetic rod; 13. Stirring blade; 14. Air inlet pipe; 15. Sliding rod; 16. Support plate. Detailed Implementation
[0017] 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.
[0018] Please see Figure 1-3 This embodiment provides a technical solution: a rapid determination device for the dosage of inorganic binder ash, including a potentiometer body 2, a magnetic stirrer 1 is provided on one side of the potentiometer body 2, a peristaltic pump 4 is provided on the upper side of the potentiometer body 2, a sample bottle 3 is connected to one side of the peristaltic pump 4 through a pipe, an air inlet pipe 14 is installed on the upper end of the sample bottle 3, a feed pipe 11 is provided on the upper side of the peristaltic pump 4, a flow valve 10 is provided at the end of the feed pipe 11 away from the peristaltic pump 4, a burette 5 is installed on the lower side of the flow valve 10, an Erlenmeyer flask 6 is provided on the upper side of the magnetic stirrer 1, a magnetic rod 12 is provided on the inner bottom side, and a stirring blade 13 is provided on the upper side of the center of the magnetic rod 12.
[0019] like Figure 1-3 As shown, during the titration measurement, 10.0 mL of the test liquid is placed in Erlenmeyer flask 6. 50 mL of 1.8% sodium hydroxide (containing triethanolamine) solution is measured using a measuring tube and poured into Erlenmeyer flask 6. At this point, the pH value of the solution is 12.5-13.0 (which can be verified using pH 12-14 precision test paper). Then, calcium red indicator (approximately 0.2 g) is added, and the solution is shaken well, turning a rose-red color. EDTA disodium standard solution is placed in sample bottle 3. The peristaltic pump 4 pumps the EDTA disodium standard solution from sample bottle 3 to burette 5 through feed tube 11. The burette 5 then drips the solution into Erlenmeyer flask 6. The flow valve 10 can accurately measure the cumulative flow of the EDTA disodium standard solution. During the titration, the magnetic stirrer 1 drives the magnetic rod 12 to rotate rapidly, and the stirring blade 13 can drive the liquid in the triangular flask 6 to mix rapidly to ensure the mixing quality. When the solution color turns purple, the titration speed is slowed down until the pure blue endpoint is reached, and then the titration is stopped. The flow valve 10 automatically counts the amount of EDTA disodium standard solution used. Then, the measurement button on the potential analyzer body 2 is clicked. The potential analyzer body 2 can automatically calculate the dosage of cement or lime based on the amount of EDTA disodium standard solution used.
[0020] A support plate 16 is provided on the upper side of the flow valve 10, a reference electrode 8 is installed on the lower side of the support plate 16, and an indicator electrode 7 is provided on one side of the reference electrode 8.
[0021] A sliding rod 15 is installed on one side of the support plate 16, and a support frame 9 is installed on the sliding rod 15.
[0022] The reference electrode 8 and the indicator electrode 7 are connected to the potentiometer body 2 via a power cord, and the potentiometer body 2 is fixedly connected to the magnetic stirrer 1.
[0023] The sample bottle 3 is inserted into the air inlet pipe 14, and the support frame 9 is connected to the sliding rod 15 by bolts.
[0024] The magnetic rod 12 is wrapped with a polyvinyl chloride shell, and the stirring blade 13 has five blades.
[0025] The working principle of the rapid dosage determination device for inorganic binder ash provided by this utility model is as follows: Figures 1-3 As shown, during the determination, first take a sample container containing the sample, and add twice the sample mass volume of 10% ammonium chloride solution to the container. If the sample is 300g, stir for 3 minutes (110-120 times per minute); if the sample is 1000g, stir for 5 minutes. If using a 1000mL stoppered Erlenmeyer flask, hold the flask (mouth upwards) and shake vigorously for 3 minutes (120 ± 5 times per minute) to replace the stirring rod. Let the precipitate stand for 10 minutes, then take 10mL of the supernatant and transfer it to Erlenmeyer flask 6. Measure 50mL of 1.8% sodium hydroxide (containing triethanolamine) solution using a measuring tube and pour it into Erlenmeyer flask 6. At this point, the pH value of the solution is 12.5-13.0 (which can be verified using pH 12-14 precision test paper). Then add calcium red indicator (approximately 0.2g), shake well, and the solution... The solution is rose-red. EDTA disodium standard solution is placed in sample bottle 3. Peristaltic pump 4 pumps the EDTA disodium standard solution from sample bottle 3 to burette 5 through feed pipe 11. Burette 5 drips the solution into Erlenmeyer flask 6. Flow valve 10 accurately measures the cumulative flow of the EDTA disodium standard solution. During titration, magnetic stirrer 1 drives magnetic rod 12 to rotate rapidly, and stirring blade 13 rapidly mixes the liquid in Erlenmeyer flask 6, ensuring mixing quality. When the solution color turns purple, the titration speed is slowed down until a pure blue endpoint is reached, at which point titration stops. Flow valve 10 automatically calculates the amount of EDTA disodium standard solution used. Then, the measurement button on the potential analyzer body 2 is pressed. The potential analyzer body 2 can automatically calculate the dosage of cement or lime based on the amount of EDTA disodium standard solution used.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A rapid inorganic binder ash dosage determination device comprising a potentiometer body, characterized in that: A magnetic stirrer is installed on one side of the potentiometer body, and a peristaltic pump is installed on the upper side of the potentiometer body. A sample bottle is connected to one side of the peristaltic pump through a pipe. An air inlet pipe is installed at the upper end of the sample bottle. A feed pipe is installed on the upper side of the peristaltic pump. A flow valve is installed at the end of the feed pipe away from the peristaltic pump. A burette is installed below the flow valve. An Erlenmeyer flask is installed on the upper side of the magnetic stirrer. A magnetic rod is installed on the inner bottom side. A stirring blade is installed on the upper center of the magnetic rod. The magnetic stirrer drives the magnetic rod to rotate rapidly, and the stirring blade drives the liquid in the Erlenmeyer flask to mix rapidly, thereby accelerating the mixing speed.
2. The device for rapid determination of the amount of inorganic binder in a gypsum binder according to claim 1, characterized in that: A support plate is provided on the upper side of the flow valve, a reference electrode is installed on the lower side of the support plate, and an indicator electrode is provided on one side of the reference electrode.
3. The device for rapid determination of inorganic binder ash content according to claim 2, characterized in that: A sliding rod is installed on one side of the support plate, and a support frame is installed on the sliding rod.
4. The device for rapid determination of inorganic binder ash content according to claim 2, characterized in that: The reference electrode and the indicator electrode are connected to the potentiometer body via a power cord, and the potentiometer body is fixedly connected to the magnetic stirrer.
5. The rapid dosage determination device for inorganic binder ash according to claim 3, characterized in that: The sample bottle is inserted into the air inlet pipe, and the support frame is connected to the sliding rod by bolts.
6. The device for rapid determination of inorganic binder ash content according to claim 1, characterized in that: The magnetic rod is wrapped with a polyvinyl chloride shell, and the stirring blade has five blades.