Rapid lime measuring device
By designing a quick lime measurement device, combining a direct-read calcium measuring instrument and a weight measuring mechanism, the lime content in dispersible soil is calculated, which solves the problems of cumbersome and inaccurate existing lime measurement methods, and achieves rapid and accurate lime dose measurement and improves construction quality.
Patent Information
- Application Number
- CN202421451769.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-06-24
AI Technical Summary
Existing lime measurement methods such as EDTA titration method use many chemical reagents and the process is cumbersome, so they cannot provide uniform data in a timely manner, which affects the construction quality.
A quick lime measurement device was designed, combining a direct-read calcium measuring instrument and a weight measuring mechanism to calculate the lime content in the dispersible soil by measuring the weight and lime content of dispersible soil and improved soil, thereby avoiding the use of chemical reagents.
It realizes the rapid and accurate determination of lime dose on site, improves construction quality, reduces the use of chemical reagents, and enhances the close integration of on-site inspection and construction.
Smart Images
Figure CN222866678U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lime detection, in particular to a lime rapid determination device. Background Art
[0002] Dispersed soil is easily eroded by water, so it will threaten the safety of the dam body if used as a dam construction material. The most common way to improve soil is to add lime. Generally, the amount of lime is determined through indoor tests to guide the construction of the project. With the improvement of the degree of mechanization, the amount of lime is often determined in the project. Dispersed soil and lime are mixed in a mixing station. In the construction quality inspection, the dosage of lime cannot be determined by naked eye observation of the improved soil. The EDTA titration method is often used to check the dosage of lime in order to provide qualified improved soil materials for dam construction.
[0003] The EDTA titration method uses a considerable amount of chemical reagents. The titration process is cumbersome and time-delayed. The construction site cannot obtain uniformity data in time and cannot effectively guide the construction. There are human factors that affect whether the titration reaches the endpoint, which affects the accuracy of the mixing results. The determination of the amount of lime depends on the main component of lime, calcium oxide. Lime particles react with water on the surface of soil particles. Calcium oxide reacts with water to form calcium hydroxide. Calcium hydroxide is difficult to dissolve in water, but it quickly releases calcium ions in a certain volume concentration of ammonium chloride solution. Based on this, the amount of freed calcium ions reflects the dosage of lime. The calcium electrode can convert different amounts of calcium ions into lime dosage or the content of effective calcium in lime in the form of potential.
[0004] However, the direct-reading calcium meters currently on sale are calibrated using improved soil with 6% and 14% lime content, and the measurement range is 6%-14%. In actual projects, the need for such high content is rare. If low-content improved soil is used for calibration without changing the original instruments and equipment, the error will be further amplified, making the measurement of lime mixing uniformity more difficult. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a rapid lime determination device.
[0006] The utility model is achieved in this way:
[0007] A rapid lime determination device comprises a detection mechanism and an auxiliary mechanism, wherein the detection mechanism comprises a direct-reading calcium meter and a weight measuring mechanism, wherein the weight measuring mechanism is mounted on the table of the direct-reading calcium meter, and the auxiliary mechanism comprises a storage box, wherein improved soil is provided inside the storage box, a discharge port is provided on one side of the storage box, a guide plate is mounted on one side of the discharge port, a driving mechanism is mounted on the inner wall of the storage box, a baffle is slidably mounted on the inner wall of the storage box, the output end of the driving mechanism squeezes the baffle, and the baffle blocks the discharge port.
[0008] The beneficial effect of adopting the above further scheme is that the improved soil contains a fixed content of lime. When measuring the dispersed soil with a low lime content or below the calibration range, the weight of the dispersed soil to be tested can be measured by using a weighing mechanism, and then a certain amount of improved soil is added, and the weight after addition is measured to obtain the weight of the added improved soil. Then, the lime content of the mixed soil is measured using a direct-reading calcium meter. Since the lime content of the improved soil and the weight of the improved soil are both known numbers, the lime content in the added improved soil can be calculated. The lime content in the dispersed soil can be obtained by subtracting the lime content in the added improved soil from the measured lime content of the mixed soil. This method avoids the use of chemical reagents such as triethanolamine, sodium hydroxide and disodium ETDA in the EDTA titration method. At the same time, the lime dosage can be quickly determined on site, so that on-site testing is closely integrated with on-site construction, effectively guiding the construction effect.
[0009] Furthermore, the weighing mechanism includes a pressure sensor and an analog-to-digital converter. The pressure sensor is installed on the table of the direct-reading calcium meter, the analog-to-digital converter is installed inside the direct-reading calcium meter, and the pressure sensor and the analog-to-digital converter are electrically connected.
[0010] The beneficial effect of adopting the above further solution is that the pressure sensor is used to measure the weight of the soil, and the analog-to-digital converter converts the analog signal of the pressure sensor into a digital signal and displays it on the display screen of the direct-reading calcium meter.
[0011] Furthermore, the inner bottoms of the material storage box and the material guide plate are both configured as inclined surfaces, and a pair of inclined surfaces are connected to each other.
[0012] The beneficial effect of adopting the above further solution is that the slope is used to guide the improved soil so that it can slide into the beaker.
[0013] Furthermore, the driving mechanism includes a connecting frame installed on the inner wall of the storage box, the interior of the connecting frame is rotatably connected to a rotating shaft, a cam is installed on the outer side of the rotating shaft, the cam squeezes the top of the baffle, and a pair of springs are connected between the top of the baffle and the inner top of the connecting frame.
[0014] Furthermore, a knob is provided on the outer side of the storage box, the knob is connected to a rotating shaft, and a spring washer is provided on the outer side of the rotating shaft.
[0015] The beneficial effect of adopting the above further scheme is that the knob is used to rotate the rotating shaft, so that the cam squeezes the baffle, causing the baffle to drop and block the discharge port. When the cam does not squeeze the baffle, the baffle will move up under the action of the spring, thereby opening the discharge port. The spring washer is used to increase the friction between the knob and the outer wall of the storage box to prevent the knob from rotating on its own.
[0016] Furthermore, the opening size of the material guide plate close to the material storage box is larger than the opening size away from the material storage box.
[0017] The beneficial effect of adopting the above further solution is that the amount of improved soil flowing out at one time can be reduced by limiting the size of the guide plate.
[0018] Furthermore, the top of the storage box is covered with a box cover, the top of the box cover is equipped with a handle, and the bottom of the box cover is equipped with a sealing member.
[0019] The beneficial effect of adopting the above further scheme is that the sealing member is a rubber plate or a silicone plate, and the box cover with the sealing member is used to keep the storage box in a relatively dry state, thereby ensuring the dryness of the improved soil therein.
[0020] The beneficial effects of the utility model are as follows: the utility model is a lime rapid determination device obtained by the above design. By using a direct-reading calcium meter and a weight measuring mechanism, the amount of improved soil added and the lime content of dispersed soil mixed with the improved soil can be known. Since the lime content of the improved soil and the weight of the improved soil are both known numbers, the lime content in the added improved soil can be calculated. The lime content in the dispersed soil can be obtained by subtracting the lime content in the added improved soil from the measured lime content in the mixed soil. In this way, the use of chemical reagents such as triethanolamine, sodium hydroxide and disodium ETDA in the EDTA titration method is avoided. At the same time, the lime dosage can be quickly determined on site, so that on-site detection is closely combined with on-site construction, and the construction effect is effectively guided. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the following is a brief introduction to the drawings required for use in the implementation mode. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 A schematic diagram of the three-dimensional structure of a rapid lime determination device provided by the utility model;
[0023] Figure 2 A schematic diagram of a first explosion structure of a lime rapid determination device provided by the utility model;
[0024] Figure 3 for Figure 2 A schematic diagram of the structure of structure A in the middle;
[0025] Figure 4 This is a schematic diagram of a second explosion structure of a lime rapid determination device provided by the utility model.
[0026] In the figure: 100, detection mechanism; 1001, direct-reading calcium meter; 1002, weight measuring mechanism; 200, auxiliary mechanism; 2001, storage box; 2002, discharge port; 2003, guide plate; 2004, knob; 2005, box cover; 2006, handle; 2007, connecting frame; 2008, baffle; 2009, sealing element; 2010, rotating shaft; 2011, cam; 2012, spring; 2013, inclined plane. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.
[0029] Embodiment 1 of a rapid lime determination device of the utility model
[0030] The utility model provides the following technical solutions: Figure 1-Figure 4, including a detection mechanism 100 and an auxiliary mechanism 200, the detection mechanism 100 includes a direct-reading calcium meter 1001 and a weighing mechanism 1002, the weighing mechanism 1002 is installed on the table of the direct-reading calcium meter 1001, the auxiliary mechanism 200 includes a storage box 2001, the storage box 2001 has improved soil inside, a discharge port 2002 is opened on one side of the storage box 2001, a guide plate 2003 is installed on one side of the discharge port 2002, a driving mechanism is installed on the inner wall of the storage box 2001, a baffle 2008 is slidably provided on the inner wall of the storage box 2001, the output end of the driving mechanism squeezes the baffle 2008, and the baffle 2008 blocks the discharge port 2002, the improved soil contains a fixed content of lime, for dispersed soil with a low lime content or below the calibration range When measuring, the weight of the dispersed soil to be tested can be measured by using the weighing mechanism 1002, and then a certain amount of improved soil is added, and the weight after addition is measured to obtain the weight of the added improved soil. Then, the lime content of the mixed soil is measured using the direct-reading calcium meter 1001. Since the lime content of the improved soil and the weight of the improved soil are both known numbers, the lime content in the added improved soil can be calculated. The lime content in the dispersed soil can be obtained by subtracting the lime content in the added improved soil from the measured lime content of the mixed soil. This method avoids the use of chemical reagents such as triethanolamine, sodium hydroxide and disodium ETDA in the EDTA titration method. At the same time, the lime dosage can be quickly determined on site, so that on-site testing is closely integrated with on-site construction, effectively guiding the construction effect.
[0031] Embodiment 2 of a rapid lime determination device of the utility model
[0032] Reference Figure 1-Figure 4 Specifically, the driving mechanism includes a connecting frame 2007 installed on the inner wall of the storage box 2001, the inner part of the connecting frame 2007 is rotatably connected to a rotating shaft 2010, a cam 2011 is installed on the outer side of the rotating shaft 2010, the cam 2011 squeezes the top of the baffle 2008, a pair of springs 2012 are connected between the top of the baffle 2008 and the inner top of the connecting frame 2007, a knob 2004 is provided on the outer side of the storage box 2001, the knob 2004 is connected to the rotating shaft 2010, and the rotating shaft 2010 is connected to the rotating shaft 2011. A spring washer is provided on the outside of 010, and the knob 2004 is used to rotate the rotating shaft 2010, so that the cam 2011 squeezes the baffle 2008, causing the baffle 2008 to drop and block the discharge port 2002. When the cam 2011 does not squeeze the baffle 2008, the baffle 2008 will move up under the action of the spring 2012, thereby opening the discharge port 2002. The spring washer is used to increase the friction between the knob 2004 and the outer wall of the storage box 2001 to prevent the knob 2004 from rotating.
[0033] Embodiment 3 of a rapid lime determination device of the utility model
[0034] Reference Figure 1-Figure 4 Specifically, the weighing mechanism 1002 includes a pressure sensor and an analog-to-digital converter. The pressure sensor is installed on the table of the direct-reading calcium meter 1001, and the analog-to-digital converter is installed inside the direct-reading calcium meter 1001. The pressure sensor and the analog-to-digital converter are electrically connected. The pressure sensor is used to measure the weight of the soil. At the same time, the analog-to-digital converter converts the analog signal of the pressure sensor into a digital signal and displays it on the display screen of the direct-reading calcium meter 1001.
[0035] Specifically, the working principle of the lime rapid determination device is as follows: when in use, the improved soil with a lime content of 10% is stored in the storage box 2001, a certain amount of dispersed soil is placed in a beaker and weighed, the knob 2004 is rotated so that the cam 2011 no longer squeezes the baffle 2008, so that the discharge port 2002 is in an open state, the beaker is placed below the free end of the guide plate 2003, so that the improved soil therein slides into the beaker through the guide plate 2003, after sliding in a certain amount, the discharge port 2002 is closed, and the weight is measured again to obtain the weight of the added improved soil, and the weight is multiplied by 10% of the lime content to obtain the lime content of the improved soil, and then pure water is added to the beaker to obtain a soil solution, and the lime content of the mixed soil is measured using the direct-reading calcium meter 1001, and the lime content of the improved soil is subtracted from the value to finally obtain the lime content in the dispersed soil.
[0036] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A rapid lime determination device, characterized in that: The invention comprises a detection mechanism (100) and an auxiliary mechanism (200), wherein the detection mechanism (100) comprises a direct-reading calcium meter (1001) and a weight measuring mechanism (1002), wherein the weight measuring mechanism (1002) is installed on the table of the direct-reading calcium meter (1001), and the auxiliary mechanism (200) comprises a material storage box (2001), wherein the interior of the material storage box (2001) has improved soil, a material discharge port (2002) is provided on one side of the material storage box (2001), a material guide plate (2003) is installed on one side of the material discharge port (2002), a driving mechanism is installed on the inner wall of the material storage box (2001), a baffle (2008) is slidably provided on the inner wall of the material storage box (2001), and the output end of the driving mechanism squeezes the baffle (2008), and the baffle (2008) blocks the material discharge port (2002).
2. A rapid lime determination device according to claim 1, characterized in that: The weighing mechanism (1002) comprises a pressure sensor and an analog-to-digital converter, wherein the pressure sensor is mounted on the table of the direct-reading calcium meter (1001), the analog-to-digital converter is mounted inside the direct-reading calcium meter (1001), and the pressure sensor and the analog-to-digital converter are electrically connected.
3. A rapid lime determination device according to claim 1, characterized in that: The inner bottoms of the material storage box (2001) and the material guide plate (2003) are both configured as inclined surfaces (2013), and a pair of inclined surfaces (2013) are connected to each other.
4. A rapid lime determination device according to claim 1, characterized in that: The driving mechanism comprises a connecting frame (2007) mounted on the inner wall of a material storage box (2001); the connecting frame (2007) is rotatably connected to a rotating shaft (2010) inside; a cam (2011) is mounted on the outer side of the rotating shaft (2010); the cam (2011) presses the top of a baffle (2008); and a pair of springs (2012) are connected between the top of the baffle (2008) and the inner top of the connecting frame (2007).
5. A rapid lime determination device according to claim 4, characterized in that: A knob (2004) is provided on the outer side of the material storage box (2001), the knob (2004) is connected to a rotating shaft (2010), and a spring washer is provided on the outer side of the rotating shaft (2010).
6. A rapid lime determination device according to claim 5, characterized in that: The opening size of the guide plate (2003) close to the material storage box (2001) is larger than the opening size away from the material storage box (2001).
7. A rapid lime determination device according to claim 1, characterized in that: The top of the material storage box (2001) is covered with a box cover (2005), the top of the box cover (2005) is installed with a handle (2006), and the bottom of the box cover (2005) is installed with a sealing member (2009).