Mixing uniformity measuring device and method suitable for viscous solid waste solidification construction

Abstract

The present invention discloses a mixing uniformity measuring device suitable for use in the solidification construction of viscous solid waste. The device comprises: a housing; a consistency measuring device comprising a stirring shaft, one end of which is driven for rotation by a drive motor within the housing and the other end of which extends axially out of the open end of the housing; a consistency probe fixed to the outer end of the stirring shaft and configured to detect consistency data; a pH measuring device comprising a connecting rod spaced parallel to and arranged at the same end of the housing as the stirring shaft; a pH sensor fixed to the outer end of the connecting rod; a controller electrically connected to the consistency measuring device and the pH measuring device; and a display electrically connected to the controller. The present invention analyzes the consistency and pH test results of a mixture of viscous solid waste and a curing agent to comprehensively and fully determine the uniformity of the mixture, avoiding errors caused by relying on manual experience. This facilitates technical personnel to optimize the curing process and improve the treatment effect of viscous solid waste.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy and environmental protection engineering, and more particularly to a device and method for measuring mixing uniformity suitable for solidification construction of viscous solid waste. Background Art

[0002] In recent years, with the rapid development of infrastructure projects such as underground engineering and water conservancy projects in my country, construction byproducts such as construction waste and river and lake silt have attracted increasing attention. The traditional method of disposing of these wastes is centralized landfilling, which consumes significant land resources and can easily cause long-term pollution to the surrounding environment. Therefore, a method is currently being adopted to modify and solidify these wastes by mixing them with specialized curing agents. This curing process can quickly reduce the moisture content of these wastes, improve their mechanical properties, and enable them to be recycled as resource-based products such as backfill and landscaping soil, replacing natural soil. This has positive social significance. The uniformity of the mixing of these wastes with the curing agent is a key factor in determining the curing effect. However, due to their viscous nature, these materials are difficult to quickly and uniformly mix with the curing agent. Currently, there are no national or industry-specific testing methods or standards for the uniformity of the mixing of viscous materials and curing agents. Engineers and technicians can only rely on experience, which is subject to significant subjective errors and can easily lead to unstable curing results and significant deviations from expected curing results.

[0003] In order to solve the above problems, it is necessary to design a mixing uniformity measurement device and method suitable for the solidification construction of sticky solid waste, accurately measure the mixing uniformity of the sticky solid waste after solidification treatment, and ensure the solidification effect. Summary of the Invention

[0004] The purpose of the present invention is to provide a mixing uniformity measurement device and method suitable for the solidification construction of viscous solid waste. By comprehensively analyzing the test results of the consistency and pH value of the mixture of viscous material and curing agent, a more comprehensive judgment of the uniformity of the mixture of viscous solid waste and curing agent can be made, avoiding the errors caused by relying on human experience. At the same time, it is convenient for technicians to optimize the mixture ratio, process, etc. based on the test results, thereby improving the treatment effect of viscous solid waste.

[0005] In order to achieve these purposes and other advantages according to the present invention, a mixing uniformity measuring device suitable for viscous solid waste solidification construction is provided, comprising:

[0006] a housing, which is a hollow structure with open ends;

[0007] The consistency testing device includes a drive motor fixed inside the housing; a stirring shaft, one end of which is connected to the output shaft of the drive motor and the other end of which extends axially out of the open end of the housing; and a consistency probe fixed to the end of the stirring shaft located outside the housing and configured to detect consistency data at that position.

[0008] The pH testing device includes a connecting rod, which is parallel to and spaced from the stirring shaft and disposed at the same end of the housing; a pH sensor, which is fixed to the end of the connecting rod located outside the housing and is configured to detect the pH value at that position;

[0009] a controller disposed inside the housing and electrically connected to the consistency testing device and the pH testing device;

[0010] A display is arranged outside the housing and electrically connected to the controller.

[0011] Preferably, the mixing uniformity measuring device suitable for viscous solid waste solidification construction further includes a handle fixed on the outer side wall of the shell; and a switch provided on the handle and electrically connected to the controller.

[0012] Preferably, the mixing uniformity measuring device suitable for viscous solid waste solidification construction, the consistency probe includes a stirring paddle, which is fixed to the outer end of the stirring shaft and arranged perpendicular to its axis, and the axis of the stirring shaft is located in the end plane of the stirring paddle; a strain gauge, which is fitted on the end plane of the stirring paddle and electrically connected to the controller.

[0013] Preferably, in the mixing uniformity measuring device suitable for viscous solid waste solidification construction, the pH testing device further comprises a temperature sensor, which is arranged at the same end of the connecting rod as the pH sensor and is electrically connected to the pH sensor.

[0014] Preferably, the mixing uniformity measuring device suitable for viscous solid waste solidification construction further includes a data transmission device, which is electrically connected to the controller and is configured to transmit the detected consistency data and pH value to the client.

[0015] Preferably, in the mixing uniformity measuring device suitable for viscous solid waste solidification construction, the straight-line distances between the consistency probe and the pH sensor and the outer end of the housing are different.

[0016] The present invention also provides a method for measuring mixing uniformity applicable to viscous solid waste solidification construction, comprising:

[0017] S1. Assemble a mixing uniformity measuring device suitable for viscous solid waste solidification construction, and zero and calibrate the consistency probe and pH sensor;

[0018] S2. Using a stirring device, the sticky solid waste and the curing agent are mixed and stirred according to the designed scheme to obtain a solidified mixture. Then, a plurality of measuring points are selected within the solidified mixture, with each measuring point having different longitudinal and lateral positions. The mixing uniformity measuring device suitable for sticky solid waste curing construction is lowered as a whole by a handle, and consistency data and pH values ​​of the plurality of measuring points are sequentially tested.

[0019] S3. After all measuring points are measured, the controller automatically calculates the consistency data and the standard deviation of the pH value of each measuring point and displays them on the display. The staff comprehensively judges the mixing uniformity of the solidified mixture based on the set standard deviation thresholds of the consistency data and the pH value.

[0020] Preferably, in the mixing uniformity determination method applicable to the solidification construction of viscous solid waste, in S3, the method for comprehensively judging the mixing uniformity of the solidified mixture according to the set consistency data and the standard deviation threshold of the pH value is:

[0021] When the standard deviations of the displayed consistency data and pH value are both less than or equal to the corresponding standard deviation thresholds, it is determined that the mixing uniformity of the viscous solid waste and the curing agent is qualified;

[0022] When the standard deviation of the displayed consistency data is less than or equal to the corresponding standard deviation threshold, and the standard deviation of the pH value is greater than the corresponding standard deviation threshold, it is judged that the viscous solid waste has been stirred evenly, but the curing agent has not been fully dispersed, and the mixing uniformity is unqualified;

[0023] When the standard deviation of the displayed consistency data is greater than the corresponding standard deviation threshold, and the standard deviation of the pH value is less than or equal to the corresponding standard deviation threshold, it is judged that the curing agent has been fully dispersed, but the viscous solid waste has not been completely mixed, and the mixing uniformity is unqualified;

[0024] When the standard deviations of the displayed consistency data and pH value are both greater than the corresponding standard deviation thresholds, it is determined that the viscous solid waste and the curing agent are not fully mixed and the mixing uniformity is unqualified.

[0025] The present invention has at least the following beneficial effects:

[0026] 1. The present invention comprehensively analyzes the consistency and pH test results of the mixture of viscous material and curing agent to more comprehensively determine the uniformity of the mixture of viscous solid waste and curing agent, avoiding errors caused by relying on manual experience. It also facilitates technicians to optimize the mixture ratio and curing construction process based on the test results, effectively preventing problems such as long coagulation time, over-doping of curing agent, and uneven curing strength caused by insufficient stirring, thereby improving the curing treatment effect of viscous solid waste.

[0027] 2. The mixing uniformity measuring device suitable for viscous solid waste solidification construction of the present invention has a simple structure and is easy to operate. It is convenient for real-time measurement at the solidification construction site and timely adjustment of the solidification process based on the test results. It effectively improves the construction efficiency while ensuring the solidification effect. The device can be applied to different types of viscous solid waste solidification construction, has a wide range of applications, and has good application prospects.

[0028] Other advantages, objectives and features of the present invention will be reflected in part from the following description and will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of a mixing uniformity measuring device suitable for viscous solid waste solidification construction according to one embodiment of the present invention;

[0030] Figure 2 Schematic diagram of the external structure of the mixing uniformity measuring device suitable for viscous solid waste solidification construction described in the above embodiment.

[0031] Description of reference numerals:

[0032] 1. Housing; 21. Drive motor; 22. Stirring shaft; 23. Consistency probe; 31. Connecting rod; 32. pH sensor; 4. Controller; 5. Display; 6. Power supply; 7. Handle; 8. Switch; 9. Data transmission device. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0034] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "horizontal", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0035] like Figure 1-2 As shown, the present invention provides a mixing uniformity measuring device suitable for viscous solid waste solidification construction, comprising:

[0036] The housing 1 is a hollow structure with open ends;

[0037] The consistency testing device includes a drive motor 21 fixed inside the housing; a stirring shaft 22, one end of which is connected to the output shaft of the drive motor and the other end of which extends axially out of the open end of the housing; and a consistency probe 23 fixed to the end of the stirring shaft located outside the housing and configured to detect consistency data at that position.

[0038] The pH testing device includes a connecting rod 31, which is arranged parallel to the stirring shaft and spaced apart at the same end of the housing; a pH sensor 32, which is fixed to the end of the connecting rod located outside the housing and is configured to detect the pH value at this position;

[0039] A controller 4, which is disposed inside the housing and electrically connected to the consistency testing device and the pH testing device;

[0040] The display 5 is arranged outside the housing and is electrically connected to the controller.

[0041] In the above technical solution, the sticky solid waste refers to viscous construction waste such as sludge and slag. Its solidification construction is carried out in an open container. After the sticky solid waste and the curing agent are mixed and stirred according to the design plan, the mixing uniformity measurement device suitable for sticky solid waste solidification construction can be used to detect the mixing uniformity. During the test, the staff holds the shell with its open end facing the liquid surface of the mixture of sticky solid waste and curing agent and lowers it, and extends the consistency probe and pH sensor into the mixture at a set position (measuring point) for measurement. Among them, the drive motor can provide a constant speed, drive the stirring shaft to rotate through the gear, and the stirring shaft then drives the consistency probe to rotate. The consistency probe is used to detect the resistance received by the outer end of the stirring shaft when rotating in the mixture (which can represent the consistency data at the current position). After detecting the consistency data of the mixture at the current position, it is transmitted to the controller through an electrical signal for analysis and judgment. The pH sensor uses a glass electrode as the indicator electrode and a calomel electrode as the reference electrode. It detects the hydrogen ion concentration in the mixture at the current location by measuring the potential difference between the two electrodes. This is then converted into an electrical signal representing the pH value via an internal pH converter and output to the controller for analysis and evaluation. The controller integrates the consistency and pH data and displays the test data at the current measurement point on a display, facilitating comprehensive reference and evaluation of the mixing uniformity index. To ensure the proper functioning of all components, the mixing uniformity measurement device for viscous solid waste curing construction also includes a power supply 6 to power the various electronic components within the device. This power supply is integrated into the housing, eliminating the need for an external power cord, making the entire device easily portable and capable of quickly measuring the mixing uniformity of the current viscous solid waste and curing agent mixture. In this embodiment, the power supply comprises a lithium battery and a charging device, providing the necessary energy for each functional component.

[0042] Specifically, the controller is an integrated controller (a single-chip microcomputer can be used) equipped with analysis and calculation modules, which, in conjunction with software programming, automatically measure and calculate consistency and pH values. For a mixture of viscous solid waste and curing agent prepared using the same ratio and curing process, multiple measuring points (with different three-dimensional coordinates) are selected within the container containing the mixture and measured separately using a mixing uniformity measurement device suitable for viscous solid waste curing construction. The single (single-point) measurement time and the reading frequency of the consistency probe and pH sensor are preset according to design requirements. Upon receiving the measurement start signal, the analysis module automatically collects and stores the electrical signals uploaded by the consistency probe and pH sensor within the set time and converts them into consistency and pH values, respectively. The calculation module reads the consistency and pH values ​​obtained by the analysis module for the same measuring point within the single measurement time, calculates their average values, and stores them. This average value represents the consistency and pH value of the current measuring point. After all measuring points are completed, the calculation module retrieves the average consistency and pH values ​​for each measuring point and calculates the standard deviation of the multiple average consistency and pH values. During the measurement process, the display reads the data analyzed and calculated by the controller in real time and displays the consistency and pH value change curves within a single measurement time, as well as the average values ​​of the consistency and pH value measurements output by the calculation module. Furthermore, after the final measurement (all measurement points are tested), the display can also show the change curves of the average values ​​of the consistency and pH values ​​over multiple measurements (at different measurement points) and the standard deviation of these multiple measurement results. Workers can comprehensively judge the uniformity of the material mixing based on the change curves of the average values ​​of the consistency and pH values ​​and the standard deviations of these average values. The display can be mounted directly on the outer wall of the housing, allowing operators to observe the test results in real time and make comprehensive judgments.

[0043] The mixing uniformity measuring device of the present invention, which is suitable for the solidification construction of viscous solid waste, allows workers to comprehensively judge the mixing uniformity of viscous solid waste and curing agent from two dimensions. The consistency data represents the viscosity at each position in the mixture of viscous solid waste and curing agent. The solidification condition of the viscous solid waste (such as whether the mechanical properties meet the requirements of reuse construction, etc.) can be judged through the consistency data at a single measuring point. The standard deviation of the consistency data at different measuring points can be used to judge the degree of stirring uniformity after the viscous solid waste is mixed. Since there are two different materials, the dispersion degree of the curing agent can also be judged by the standard deviation of the pH value at each measuring point, thereby further judging the reason why the stirring uniformity does not meet the requirements, facilitating timely adjustment of the ratio of viscous solid waste and curing agent and curing process parameters, and obtaining a better curing solution, thereby ensuring the effect of curing construction.

[0044] In another technical solution, the mixing uniformity measuring device suitable for use in viscous solid waste solidification construction further includes a handle 7 secured to the outer sidewall of the housing; and a switch 8 disposed on the handle and electrically connected to the controller. The handle is ergonomically designed for easy handling. When pressed, the switch sends a signal to the controller to control the activation and deactivation of functional components such as the drive motor, consistency probe, and pH sensor (activation upon a single press, deactivation upon a second press). In this embodiment, the handle includes two spaced-apart grips, located at opposite ends of the housing and secured to its sidewalls. The grips can be hollow and communicate with the interior of the housing, facilitating the placement of components (such as a power supply) that are difficult to accommodate due to limited internal space. The switch is a push-button switch, located on the handle at the end away from the consistency testing device. The back of the switch (the side communicating with the interior of the handle) is electrically connected to components such as the power supply and controller via internal wiring, allowing the operator to start / end the testing process after lowering the entire mixing uniformity measuring device into place using the handles.

[0045] In another technical solution, the mixing uniformity measuring device suitable for the solidification construction of viscous solid waste, the consistency probe includes a stirring paddle, which is fixed to the outer end of the stirring shaft and arranged perpendicular to its axis, and the axis of the stirring shaft is located in the end plane of the stirring paddle; a strain gauge, which is fitted on the end plane of the stirring paddle and electrically connected to the controller.

[0046] The middle of the stirring paddle is fixedly connected to the outer end of the stirring shaft, that is, the two ends of the stirring paddle extend outwards by the same distance and expand to form a plane at the end (such as Figure 1As shown), the end planes at both ends of the stirring paddle coincide and the plane is set to pass through the axis of the stirring shaft (that is, the axis of the stirring shaft belongs to this plane), and the strain gauge is pasted on the end surface of the stirring paddle to form a measuring bridge (the strain gauge can be a conventional resistance strain gauge). Therefore, when the stirring paddle rotates, the stress measured by the strain gauge is the shear stress in the same direction as the rotation direction. In this embodiment, the strain gauge is pasted along the ±45° direction of the stirring paddle axis. When the controller controls the drive motor to drive the stirring shaft to rotate, the stirring paddle rotates in the viscous material along a plane perpendicular to the stirring shaft. The strain gauge is set on the end plane of the stirring paddle, and the strain can be measured when the end surface of the stirring paddle is in a shear stress state, thereby obtaining an electrical signal of the torque value generated by the force on the arm (stirring paddle). The electrical signal is transmitted to the controller through the slip ring and the brush (and the internal wiring of the stirring paddle-stirring shaft), which can represent the consistency value of the mixture at the current position of the consistency probe. The above structure indirectly detects the consistency of the corresponding measuring point in the mixture, avoiding the tedious operation of traditional consistency testing, which requires separate sampling and placing the sample to be tested in another consistency meter before performing standardized consistency testing. The torque value read by the strain gauge can intuitively, accurately and reliably represent the consistency situation at the current position, thereby simply and effectively realizing the online detection of the consistency data of each measuring point in the mixture, thereby improving measurement efficiency.

[0047] In another technical solution, the mixing uniformity measuring device suitable for viscous solid waste solidification construction, wherein the pH testing device further includes a temperature sensor, which is disposed at the same end of the connecting rod as the pH sensor and is electrically connected to the pH sensor. Since the pH value is temperature-dependent, the ambient temperature (the temperature of the mixture at the location of the temperature sensor) needs to be detected by a temperature sensor. A pH sensor with a temperature compensation function can be selected, equipped with an internal temperature compensation module. By receiving the real-time temperature value detected by the temperature sensor, the pH sensor's inter-electrode hydrogen ion concentration detection result is corrected according to the Nernst equation. The corrected measurement result is converted into an electrical signal of pH value data by a pH converter and output to a controller. This prevents the temperature difference caused by viscous solid waste solidification construction from affecting the accuracy of pH measurement results, improves detection effectiveness, and prevents staff from misjudging the test results.

[0048] In another technical solution, the mixing uniformity measuring device suitable for the solidification construction of viscous solid waste further includes a data transmission device 9, which is electrically connected to the controller and is configured to transmit the detected consistency data and pH value to the client. In the above technical solution, the data transmission device can use a conventional signal transmission device (wired transmission device or wireless transmission device), which is fixed to the housing and transmits the measurement results obtained by the controller each time remotely to the user's computer or other storage device through wired or wireless transmission to facilitate recording and processing. The staff can combine the data results of multiple measurements to summarize the uniformity of the mixture of viscous solid waste and curing agent under different ratios and curing processes, which facilitates the staff to continuously optimize the ratio and curing process to obtain the optimal curing solution and its construction parameters, which is conducive to further improving the curing treatment effect of viscous solid waste.

[0049] In another technical solution, the consistency probe and pH sensor are positioned at different linear distances from the outer end of the housing in a mixing uniformity measurement device suitable for use in viscous solid waste solidification construction. Because the consistency probe rotates relative to the mixture during measurement, driven by the drive motor and stirring shaft, the detection ends of the consistency probe and pH sensor are staggered to avoid interference during measurement and the influence of mixture flow on pH measurement stability. This minimizes interference and ensures accurate measurement results.

[0050] The present invention also provides a method for measuring mixing uniformity applicable to viscous solid waste solidification construction, comprising:

[0051] S1. Assemble a mixing uniformity measuring device suitable for viscous solid waste solidification construction, and zero and calibrate the consistency probe and pH sensor;

[0052] The pH sensor is calibrated with a pH standard solution, and then the consistency probe is opened in the air (ie, the drive motor is started to drive the stirring paddle to rotate through the stirring shaft) to perform torque zeroing.

[0053] S2. Use a stirring device to mix and stir the sticky solid waste and the curing agent according to the designed scheme to obtain a solidified mixture. Then, select multiple measuring points in the solidified mixture. The vertical and horizontal positions of any measuring point are different. The mixing uniformity measuring device suitable for the solidification construction of sticky solid waste is lowered as a whole by the handle ( Figure 1 The mixing uniformity measuring device shown is suitable for viscous solid waste solidification construction and is placed horizontally. In actual use, the end where the pH sensor and consistency probe are located is placed downward and extends into the solidified mixture. The consistency data and pH value of the multiple measuring points are tested in sequence.

[0054] The length of the stirring shaft and connecting rod in the mixing uniformity measuring device can be determined based on the size of the mixing equipment or the storage container used during measurement. The number of measuring points is 10-20, and the measuring points are selected to cover the different height stages within the solidified mixture as much as possible to ensure the validity of the data. In this embodiment, 10 measuring points are selected within the solidified mixture, and the controller is set to a single detection time of 10 seconds, and the detection (data reading) frequency of the consistency probe and pH sensor is set to 2 times / second. Specifically, after the consistency probe and pH sensor are inserted into the solidified mixture at the set measuring point, the switch on the handle is pressed to start the measurement. The drive motor drives the stirring shaft and stirring paddle to start rotating, and the controller automatically reads the real-time detection data from the consistency probe and pH sensor. After 10 seconds, the controller automatically stops the detection (the drive motor stops rotating and the controller stops reading data), and the single measurement data is displayed on the display. In the above process, 20 torque values ​​and pH values ​​can be read in 10 seconds. The average of these values ​​represents the consistency data and pH value of the current measuring point. After a single measurement is completed, lift the mixing uniformity measuring device, take out the consistency probe and pH sensor from the solidified mixture and rinse them with water before measuring the next measuring point.

[0055] S3. After all measuring points are measured, the controller automatically calculates the consistency data and the standard deviation of the pH value of each measuring point and displays them on the display. The staff comprehensively judges the mixing uniformity of the solidified mixture based on the set standard deviation thresholds of the consistency data and the pH value.

[0056] In another technical solution, the mixing uniformity determination method applicable to the viscous solid waste solidification construction, in S3, the method for comprehensively judging the mixing uniformity of the solidified mixture based on the set consistency data and the standard deviation threshold of the pH value is:

[0057] When the standard deviations of the displayed consistency data and pH value are both less than or equal to the corresponding standard deviation thresholds, it is determined that the mixing uniformity of the viscous solid waste and the curing agent is qualified. That is, under the current ratio and curing process, the mixing uniformity of the viscous solid waste and the curing agent is high and the mixing effect is good.

[0058] When the standard deviation of the displayed consistency data is less than or equal to the corresponding standard deviation threshold, and the standard deviation of the pH value is greater than the corresponding standard deviation threshold, it is judged that the viscous solid waste has been stirred evenly, but the curing agent has not been fully dispersed, and the mixing uniformity is unqualified. In other words, under the current ratio and curing process, the curing agent has agglomerated. This can be optimized by adding a dispersant during construction or preparing the curing agent as an aqueous solution.

[0059] When the standard deviation of the displayed consistency data is greater than the corresponding standard deviation threshold, and the standard deviation of the pH value is less than or equal to the corresponding standard deviation threshold, it is judged that the curing agent is fully dispersed, but the sticky solid waste is not completely mixed, and the mixing uniformity is unqualified. In other words, under the current ratio and curing process, the viscosity of the sticky solid waste is uneven, and there may be unmixed mud clumps or other impurity particles in the sticky solid waste. This can be optimized by pre-treating the sticky solid waste, such as filtering, before curing construction.

[0060] When the standard deviations of the displayed consistency data and pH value are both greater than the corresponding standard deviation thresholds, it is judged that the viscous solid waste and the curing agent are not fully mixed and the mixing uniformity is unqualified. Optimization can be achieved by extending the mixing time or adjusting the mixing process (parameters).

[0061] After the mixing uniformity is qualified, the consistency data (torque value) or pH value can be individually judged to see whether it meets the requirements of the waste recycling scenario, such as the strength and viscosity requirements for the material when used as backfill soil, and the acidity and alkalinity requirements for the material when used as garden soil.

[0062] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A mixing uniformity measuring device suitable for viscous solid waste solidification construction, characterized in that: include: a housing, which is a hollow structure with open ends; A consistency testing device, comprising a drive motor fixed inside the housing; a stirring shaft, one end of which is connected to the output shaft of the driving motor and the other end of which extends axially out of the open end of the housing; a consistency probe fixed to an end portion of the stirring shaft located outside the housing and configured to detect consistency data at the end portion; A pH testing device includes a connecting rod, which is parallel to and spaced from the stirring shaft and disposed at the same end of the housing; a pH sensor fixed to an end portion of the connecting rod located outside the housing and configured to detect a pH value at that location, wherein the consistency probe and the pH sensor have different straight-line distances from the outer end portion of the housing; a controller disposed inside the housing and electrically connected to the consistency testing device and the pH testing device; a display, which is arranged outside the housing and electrically connected to the controller; For a mixture of sticky solid waste and a curing agent prepared under the same ratio and curing process, it is necessary to select multiple measuring points in the container containing the mixture and perform separate measurements using a mixing uniformity measuring device suitable for sticky solid waste curing construction. The uniformity of the material mixing can then be comprehensively judged based on the change curve of the average values ​​of the consistency and pH values ​​and the standard deviation of each average value. The standard deviation of the consistency data at different measuring points can be used to judge the uniformity of the mixing of the sticky solid waste. The standard deviation of the pH values ​​at each measuring point can be used to judge the degree of dispersion of the curing agent. The reason why the mixing uniformity does not meet the requirements can be further judged, and the ratio of the sticky solid waste and the curing agent and the curing process parameters can be adjusted.

2. The mixing uniformity measuring device suitable for viscous solid waste solidification construction according to claim 1, characterized in that: It also includes a handle fixed on the outer side wall of the shell; a switch arranged on the handle and electrically connected to the controller.

3. The mixing uniformity measuring device suitable for viscous solid waste solidification construction according to claim 1, characterized in that: The consistency probe includes a stirring paddle, which is fixed to the outer end of the stirring shaft and arranged perpendicular to its axis, and the axis of the stirring shaft is located in the end plane of the stirring paddle; a strain gauge, which is fitted on the end plane of the stirring paddle and electrically connected to the controller.

4. The mixing uniformity measuring device suitable for viscous solid waste solidification construction according to claim 1, characterized in that: The pH testing device further includes a temperature sensor, which is disposed at the same end of the connecting rod as the pH sensor and is electrically connected to the pH sensor.

5. The mixing uniformity measuring device suitable for viscous solid waste solidification construction according to claim 1, characterized in that: It also includes a data transmission device, which is electrically connected to the controller and is configured to transmit the detected consistency data and pH value to a client.

6. A method for measuring the mixing uniformity of the device for measuring the mixing uniformity of the viscous solid waste solidification construction according to claim 1, characterized in that: include: S1. Assemble a mixing uniformity measuring device suitable for viscous solid waste solidification construction, and zero and calibrate the consistency probe and pH sensor; S2. Using a stirring device, the sticky solid waste and the curing agent are mixed and stirred according to the designed scheme to obtain a solidified mixture. Then, a plurality of measuring points are selected within the solidified mixture, with each measuring point having different longitudinal and lateral positions. The mixing uniformity measuring device suitable for sticky solid waste curing construction is lowered as a whole by a handle, and consistency data and pH values ​​of the plurality of measuring points are sequentially tested. S3. After all measuring points are measured, the controller automatically calculates the consistency data and the standard deviation of the pH value of each measuring point and displays them on the display. The staff comprehensively judges the mixing uniformity of the solidified mixture based on the set standard deviation thresholds of the consistency data and the pH value.

7. The method for measuring mixing uniformity applicable to viscous solid waste solidification construction according to claim 6, characterized in that: In S3, the method for comprehensively judging the mixing uniformity of the solidified mixture according to the set consistency data and the standard deviation threshold of the pH value is: When the standard deviations of the displayed consistency data and pH value are both less than or equal to the corresponding standard deviation thresholds, it is determined that the mixing uniformity of the viscous solid waste and the curing agent is qualified; When the standard deviation of the displayed consistency data is less than or equal to the corresponding standard deviation threshold, and the standard deviation of the pH value is greater than the corresponding standard deviation threshold, it is judged that the viscous solid waste has been stirred evenly, but the curing agent has not been fully dispersed, and the mixing uniformity is unqualified; When the standard deviation of the displayed consistency data is greater than the corresponding standard deviation threshold, and the standard deviation of the pH value is less than or equal to the corresponding standard deviation threshold, it is judged that the curing agent has been fully dispersed, but the viscous solid waste has not been completely mixed, and the mixing uniformity is unqualified; When the standard deviations of the displayed consistency data and pH value are both greater than the corresponding standard deviation thresholds, it is determined that the viscous solid waste and the curing agent are not fully mixed and the mixing uniformity is unqualified.

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