A co-solvent mixing and dosing device
By designing a cosolvent mixing and feeding device, the problem of experimental fluctuations caused by manual addition of cosolvents in carbon and sulfur analyzers was solved, achieving stability of cosolvent addition and improving experimental efficiency, simplifying the operation process and reducing costs.
Patent Information
- Application Number
- CN202520847922.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-08-04
- Estimated Expiration
- 2035-04-30
AI Technical Summary
The addition of co-solvents in existing carbon and sulfur analysis instruments is done manually, resulting in inconsistent amounts added each time. This affects the accuracy and precision of the experiment, increases the workload of operators, and reduces experimental efficiency.
A cosolvent mixing and feeding device was designed, including a base frame, a material cup, a guide pipe, a vertical lifting adjustment base plate, a flipping device, and a cosolvent storage box. The amount of cosolvent added is controlled automatically to ensure consistency in each addition.
It achieves a fixed amount of cosolvent added, improves stability, enhances experimental accuracy and efficiency, reduces the workload of operators, and has a simple structure and low cost.
Smart Images
Figure CN224594295U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the structural design and application technology of auxiliary devices for carbon and sulfur analyzers, and in particular to a cosolvent mixing and feeding device that is mainly used in carbon and sulfur analyzers. Background Technology
[0002] A carbon-sulfur analyzer is an instrument used for the quantitative analysis of carbon and sulfur elements in materials. The carbon and sulfur in the sample are oxidized into carbon dioxide and sulfur dioxide gases by high-temperature heating under oxygen-rich conditions. These gases are then processed and enter a corresponding absorption cell, where they absorb the corresponding infrared radiation. The signal is then transmitted by a detector and processed by a computer to output the results. This method is accurate, rapid, and highly sensitive, and is applicable to both high and low carbon and sulfur contents.
[0003] Commonly used fluxes in carbon and sulfur analyzers include tungsten, tin, iron, and copper. Other less common fluxes include copper oxide, vanadium pentoxide, silicon dioxide, silicon, molybdenum, molybdenum trioxide, and tungsten trioxide. These fluxes serve the following functions:
[0004] 1. Fluxing effect: Most materials have high melting points. If the instrument's combustion temperature is insufficient, it is difficult to melt the sample into a liquid, and carbon dioxide and sulfur dioxide cannot escape from the solid phase. They can only be released in the liquid phase. Therefore, a flux must be added to lower the melting point.
[0005] 2. Heating effect: Some of the co-solvents used are metallic and non-metallic elements. When they are oxidized and burned in the oxygen flow, they can release a large amount of heat, which can increase the furnace temperature and has a significant effect on the combustion of the sample.
[0006] 3. Adjusting the acidity or alkalinity of the medium: Oxidation combustion produces carbon dioxide and sulfur dioxide, both of which are acidic oxides. Alkaline media are not conducive to the release of carbon dioxide and sulfur dioxide. Adding an appropriate amount of slightly acidic co-solvent to the combustion system can make the medium neutral or weakly acidic, which is conducive to the release of carbon dioxide and sulfur dioxide.
[0007] 4. Stirring effect: Stirring can accelerate the diffusion of sulfur ions, facilitate oxygen contact, and speed up the oxidation reaction. Co-solvents such as silicon dioxide, because their liquid density is less than that of iron oxides, can accelerate the diffusion of sulfur ions as they float upwards in the system. Some co-solvents generate gaseous substances when heated, and when the gas escapes, it plays a good stirring role.
[0008] 5. Catalytic effect: For example, in the combustion process of copper oxide, both C and S can take oxygen from copper oxide to produce carbon dioxide and sulfur dioxide. Then the oxygen reacts with copper to form copper oxide, thus playing a catalytic and accelerating role.
[0009] 6. Stable combustion effect: The combustion of electric arc furnaces is sometimes unstable. Adding an appropriate amount of tin powder, tin granules or silicon dioxide to the combustion of electric arc furnaces can help stabilize combustion.
[0010] 7. Anti-interference effect: The dust generated by combustion, such as ferric oxide and zinc dioxide, has an adsorption effect on sulfur dioxide, which leads to lower test results. Adding relevant co-solvents can prevent adsorption and eliminate interference.
[0011] 8. Participate in chemical reactions
[0012] Some of these cosolvents require only one application, while others require a mixture of several to achieve the best solubilizing effect.
[0013] Currently, most carbon and sulfur analysis instruments require manual addition of co-solvents using a metal spoon. The amount added each time cannot be fixed, causing fluctuations in the experimental blank, which affects the accuracy and precision of the experiment. This also increases the workload of manual operators and reduces experimental efficiency. Utility Model Content
[0014] To address the shortcomings of existing technologies, there is an urgent need to design a co-solvent mixing and feeding device to solve the problems of inconsistent amounts of co-solvent added manually in existing carbon and sulfur analysis instruments, which easily leads to fluctuations in experimental blanks, affecting the accuracy and precision of the experiment, increasing the workload of manual operators, and resulting in low experimental efficiency.
[0015] This utility model provides a solvent mixing and feeding device, including a base frame 1, a material cup 2, a guide pipe outlet 3, a guide pipe 4, a longitudinal lifting adjustment base plate 5, a longitudinal gap sealing strip 6, a flipping device 7, a solvent dispensing box 8, a solvent storage box 9, and a storage box discharge plate 10.
[0016] Among them: a plurality of solvent storage boxes 9 are arranged above the base frame 1, and a pull-out storage box discharge plate 10 is provided at the bottom of the solvent storage box 9. A solvent dispensing box 8 is provided at the corresponding position below the storage box discharge plate 10.
[0017] The cosolvent dispensing box 8 is equipped with a longitudinally sliding vertical lifting adjustment base plate 5, with a slide rail between the two. The cosolvent dispensing box 8 has a longitudinal gap. The handles of the longitudinal lifting adjustment base plate 5 extending outward are equipped with longitudinal gap sealing strips 6 on both sides. The longitudinal lifting adjustment base plate 5 can adjust the volume of the cavity inside the cosolvent dispensing box 8 by moving longitudinally.
[0018] The flipping device 7 is connected to multiple solvent dispensing boxes 8 and can be flipped synchronously by 180°. Each solvent dispensing box 8 has a guide tube 4 below it. The lower parts of the multiple guide tubes 4 converge into a guide tube outlet 3. Below the guide tube outlet 3, there is a material cup 2, which is placed at the bottom of the base frame 1.
[0019] The number of the cosolvent dispensing boxes 8 is 4 to 8.
[0020] The number of longitudinal lifting adjustment base plates 5 is 4 to 8.
[0021] The longitudinal lifting adjustment base plate 5 and the cosolvent dispensing box 8 are connected by two longitudinal slides, which are positioned by friction.
[0022] Compared with the prior art, the advantages of this utility model are:
[0023] The co-solvent mixing and feeding device described in this utility model solves the problems of existing sulfur analysis instruments where the amount of co-solvent added manually each time cannot be fixed, which easily causes fluctuations in the experimental blank, affecting the accuracy and precision of the experiment, increasing the workload of manual operators, and resulting in low experimental efficiency. Moreover, there is currently no similar product, so the market prospects are good. The structure is relatively simple, the cost is low, the experimental blank is stable, and the experimental efficiency and accuracy are improved. Attached Figure Description
[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:
[0025] Figure 1 A schematic diagram of the structure of the solvent mixing and feeding device. Detailed Implementation
[0026] The present invention will be further explained below with reference to specific implementation schemes, but it is not limited to the present invention. The structures, proportions, sizes, etc. shown in the accompanying drawings are only used to complement the content disclosed in the specification, so as to enable those skilled in the art to understand and read, and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.
[0027] Example
[0028] This utility model provides a solvent mixing and feeding device, including a base frame 1, a material cup 2, a guide pipe outlet 3, a guide pipe 4, a longitudinal lifting adjustment base plate 5, a longitudinal gap sealing strip 6, a flipping device 7, a solvent dispensing box 8, a solvent storage box 9, and a storage box discharge plate 10.
[0029] Among them: a plurality of solvent storage boxes 9 are arranged above the base frame 1, and a pull-out storage box discharge plate 10 is provided at the bottom of the solvent storage box 9. A solvent dispensing box 8 is provided at the corresponding position below the storage box discharge plate 10.
[0030] The cosolvent dispensing box 8 is equipped with a longitudinally sliding vertical lifting adjustment base plate 5, with a slide rail between the two. The cosolvent dispensing box 8 has a longitudinal gap. The handles of the longitudinal lifting adjustment base plate 5 extending outward are equipped with longitudinal gap sealing strips 6 on both sides. The longitudinal lifting adjustment base plate 5 can adjust the volume of the cavity inside the cosolvent dispensing box 8 by moving longitudinally.
[0031] The flipping device 7 is connected to multiple solvent dispensing boxes 8 and can be flipped synchronously by 180°. Each solvent dispensing box 8 has a guide tube 4 below it. The lower parts of the multiple guide tubes 4 converge into a guide tube outlet 3. Below the guide tube outlet 3, there is a material cup 2, which is placed at the bottom of the base frame 1.
[0032] The number of the cosolvent dispensing boxes 8 is 4 to 8.
[0033] The number of longitudinal lifting adjustment base plates 5 is 4 to 8.
[0034] The longitudinal lifting adjustment base plate 5 and the cosolvent dispensing box 8 are connected by two longitudinal slides, which are positioned by friction.
[0035] Any matters not covered in this utility model are common knowledge.
[0036] 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 co-solvent mixing and feeding device, characterized in that: The aforementioned solvent mixing and feeding device includes a base frame (1), a material cup (2), a guide pipe outlet (3), a guide pipe (4), a longitudinal lifting adjustment base plate (5), a longitudinal gap sealing strip (6), a flipping device (7), a solvent dispensing box (8), a solvent storage box (9), and a storage box discharge plate (10). Among them: a number of solvent storage boxes (9) are arranged above the base frame (1), and a pull-out storage box discharge plate (10) is provided at the bottom of the solvent storage box (9). A solvent dispensing box (8) is provided at the corresponding position of the lower part of the storage box discharge plate (10). The solvent dispensing box (8) is provided with a longitudinal lifting adjustment base plate (5) that can slide longitudinally, and there is a slide between the two. The solvent dispensing box (8) has a longitudinal gap. The longitudinal gap sealing strip (6) is provided on both sides of the handle extending outward from the longitudinal lifting adjustment base plate (5). The longitudinal lifting adjustment base plate (5) moves longitudinally and can adjust the volume of the cavity inside the solvent dispensing box (8). The flipping device (7) is connected to multiple solvent dispensing boxes (8) and can be flipped synchronously by 180°. Each solvent dispensing box (8) has a guide tube (4) below it. The lower parts of the multiple guide tubes (4) converge into a guide tube outlet (3). A material cup (2) is located below the guide tube outlet (3) and is placed at the bottom of the base frame (1).
2. The co-solvent mixing and feeding device according to claim 1, characterized in that: The number of the cosolvent dispensing boxes (8) is 4 to 8.
3. The co-solvent mixing and feeding device according to claim 1, characterized in that: The number of longitudinal lifting adjustment base plates (5) is 4 to 8.
4. The co-solvent mixing and feeding device according to claim 1, characterized in that: The longitudinal lifting adjustment base plate (5) and the solvent dispensing box (8) are connected by two longitudinal slides, which are positioned by friction.