Engineering slurry measuring system

Abstract

The utility model discloses an engineering slurry measuring system which comprises a container, an inner cavity of which is used for storing engineering slurry; the ultrasonic measuring unit comprises an ultrasonic transmitting probe, an ultrasonic receiving probe and a measuring instrument which are arranged in the container, ultrasonic signals are transmitted through the ultrasonic transmitting probe, so that the ultrasonic signals can penetrate through the engineering slurry and then are received by the ultrasonic receiving probe, and the measuring instrument is used for measuring the engineering slurry. The measuring instrument is used for generating measurement data based on the ultrasonic signal received by the ultrasonic receiving probe and the preset temperature of the engineering slurry; the heating end of the heating device abuts against the container; the control mechanism is electrically connected with the heating device, and the control mechanism is used for controlling the heating device to heat the engineering slurry in the container to the preset temperature. The device has the advantages of multi-point simultaneous measurement, non-contact measurement, high-frequency automatic acquisition, temperature control settlement and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of geotechnical testing, and in particular relates to a measuring system for engineering slurry. Background Art

[0002] Most of the filling and management of the large number of goafs formed by mining of mineral resources is still the filling and mining of resources. Wet (slurry) filling is the most reliable, and its core technology is the research and development of filling slurry and pumping technology with excellent performance and economical cost. The high-concentration engineering slurry used for filling the goaf needs to be pumped through pipelines for several kilometers, so its suspension becomes one of the most important performance parameters.

[0003] In addition, in shield and jacking tunnel construction, the stability of lubricating slurry has a great impact on the smooth construction of the tunnel. In oil well drilling projects, the stability of cementing slurry is crucial to the cementing effect of the well wall and engineering safety. Oil wells are deep-ground projects and are greatly affected by the formation temperature. It can be seen that the rapid and accurate testing equipment and methods for the stability of various engineering slurries with different functions such as slag carrying, filling, reinforcement, lubrication and temperature resistance are very important.

[0004] The stability of engineering slurries such as traditional cement slurries is characterized by water seepage rate, which is determined by sucking the amount of water precipitated from the top of the sample container with a straw within a specific time. However, the water seepage rate of strongly suspended and high-concentration engineering slurries is extremely low, and the stability shown by the slow sedimentation of particles cannot be determined by the method of sucking surface water and then measuring the quality of the precipitated clear water. The enamel industry and other industries use suspension degree as an indicator for the suspension of clay minerals such as kaolin. The determination method is to dry 30 grams of the mineral sample according to regulations, grind it with water, dilute it to 1000 ml, stir it and let it stand for 20 minutes, and read the volume of the upper clear liquid as the suspension degree, which is in milliliters, and is generally not more than 100 ml. This method is still the same as the determination of water seepage rate. The suspension performance of the clay mineral / suspending agent is judged by measuring the amount of supernatant secreted by the slurry. At present, bentonite, fiber and pectin are used as suspending agents, and cement, geopolymer, soil, aeolian sand, solid waste sand and the like are added to prepare the strongly suspended engineering slurry. The solid phase sedimentation is a gradual process, and there is no obvious solid-liquid interface, that is, there is no obvious supernatant. It is difficult to determine the stability of the suspended slurry using this method.

[0005] It can be seen that the traditional method for measuring the suspension characteristics of slurry has a long cycle, a large workload, is difficult to be real-time, and is applicable to a single type of slurry. Therefore, a new type of engineering slurry measurement system is urgently needed. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes a measurement system for engineering slurry to solve the problems of traditional slurry suspension characteristic measurement methods, such as long cycle, large workload, difficult implementation and single applicable slurry type.

[0007] To achieve the above purpose, the utility model provides a high-concentration engineering slurry suspension temperature control ultrasonic measurement system, including:

[0008] A container, the inner cavity of which is used to store engineering slurry;

[0009] An ultrasonic measuring unit, comprising an ultrasonic transmitting probe, an ultrasonic receiving probe and a measuring instrument arranged in the container, wherein an ultrasonic signal is transmitted by the ultrasonic transmitting probe so that the ultrasonic signal can penetrate the engineering slurry and then be received by the ultrasonic receiving probe, and the measuring instrument is used to generate measurement data based on the ultrasonic signal received by the ultrasonic receiving probe and a preset temperature of the engineering slurry;

[0010] a heating device, the heating end of which abuts against the container;

[0011] A control mechanism is electrically connected to the heating device, and is used to control the heating device to heat the engineering slurry in the container to the preset temperature.

[0012] Optionally, the measuring instrument is electrically connected to the ultrasonic transmitting probe and the ultrasonic receiving probe respectively.

[0013] Optionally, the heating device includes: a profile and a resistance wire arranged on the profile.

[0014] Optionally, the profile is circumferentially wrapped around the outer side of the container.

[0015] Optionally, the heating device further comprises: a pair of insulators arranged on the profile, and the resistance wire is located between the pair of insulators.

[0016] Optionally, the control mechanism includes: a temperature sensor and a controller electrically connected to the temperature sensor, wherein the temperature sensor is used to be arranged in the container and to obtain current temperature data of the engineering slurry, and the controller is used to control the heating device to make the engineering slurry in the container reach the preset temperature when determining that the current temperature data is different from the preset temperature.

[0017] Optionally, there are multiple numerical settings for the preset temperature.

[0018] Optionally, it also includes a display electrically connected to the measuring instrument, and the display is used to display the measurement data.

[0019] Optionally, it further includes at least one pair of assembly holes arranged on the container, and the ultrasonic transmitting probe and the ultrasonic receiving probe are respectively arranged on the pair of assembly holes.

[0020] Optionally, the temperature sensor is connected to the heating device via an elastic member.

[0021] Compared with the prior art, the utility model has the following advantages and technical effects:

[0022] The utility model sets the target temperature through the temperature adjustment button of the temperature sensor, and realizes multi-point measurement at different temperatures by adjusting different temperatures. The ultrasonic measuring and controlling instrument integrates the ultrasonic data received by the ultrasonic sensor, analyzes and processes the multi-point data, and thus obtains the concentration and sedimentation stability of the slurry at different layers over time. It has the advantages of multi-point simultaneous measurement, non-contact measurement, high-frequency automatic collection, temperature-controlled sedimentation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the temperature control system of the utility model;

[0026] Figure 3 This is a schematic diagram of the connection process of the ultrasonic controller of the utility model;

[0027] Among them, 1. container; 2. ultrasonic sensor transmitting end; 3. ultrasonic sensor receiving end; 4. temperature sensor; 5. temperature controller; 6. heating plate; 7. retractable fixing spring; 8. temperature controller plug; 9. ultrasonic controller; 10. ultrasonic controller charging cable; 11. ultrasonic controller display; 12. ultrasonic controller switching button; 13. temperature controller display; 14. temperature adjustment button; 15. resistance wire; 16. silicone insulation. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0030] The utility model proposes a measurement system for engineering slurry, such as Figure 1 As shown, specifically including:

[0031] A container 1, whose inner cavity is used to store engineering slurry;

[0032] The ultrasonic measuring unit includes an ultrasonic transmitting probe, an ultrasonic receiving probe and a measuring instrument arranged in the container, wherein the ultrasonic transmitting probe transmits an ultrasonic signal so that the ultrasonic signal can penetrate the engineering slurry and then be received by the ultrasonic receiving probe. Figure 3 As shown, an ultrasonic sensor module is used to measure the distance. The distances of different points in the slurry are calculated by measuring the time it takes for ultrasonic waves to be emitted from the sensor and received back. The microcontroller serves as the main controller to receive the measurement data of the ultrasonic sensor, process the data and control the work of other modules. The multiplexer enables access to multiple ultrasonic sensors to achieve multi-point measurement. The wireless module transmits the measurement data to a remote device or the cloud to achieve remote monitoring and data acquisition. A battery is used to provide a stable power supply for the system. The display screen displays the measurement results of the slurry concentration in real time, which is convenient for users to observe and monitor.

[0033] A heating device, the heating end of which abuts against the container 1;

[0034] like Figure 2 As shown, the control mechanism is electrically connected to the heating device, and the control mechanism is used to control the heating device to heat the engineering slurry in the container to a preset temperature.

[0035] Specifically, the container 1 can be made of copper or aluminum, and has openings along the height for inserting the ultrasonic transducer probe;

[0036] Furthermore, the measuring instrument is electrically connected to the ultrasonic transmitting probe and the ultrasonic receiving probe respectively.

[0037] Furthermore, the heating device comprises: a profile and a resistance wire 15 arranged on the profile;

[0038] Specifically, the resistance wire 15 is preferably a nickel-chromium alloy heating wire.

[0039] Furthermore, the profile is circumferentially wrapped around the outer side of the container 1 .

[0040] Furthermore, the heating device further comprises: a pair of insulators arranged on the profile, the resistance wire 15 being located between the pair of insulators;

[0041] Specifically, the insulator is a silicone insulation 16, preferably a thin sheet composited with silicone rubber and glass fiber.

[0042] Furthermore, the control mechanism includes: a temperature sensor 4 and a temperature controller 5 electrically connected to the temperature sensor. The temperature sensor 4 is used to be set in the container and to obtain the current temperature data of the engineering slurry. The temperature controller 5 is used to control the heating device to make the engineering slurry in the container reach the preset temperature when determining that the current temperature data is different from the preset temperature.

[0043] Specifically, the temperature controller 5 components include:

[0044] The temperature controller display screen 13 is arranged on the upper side of the temperature controller 5;

[0045] The temperature adjustment button 14 is arranged beside the temperature controller display screen 13 .

[0046] Furthermore, there are multiple values ​​of the preset temperature.

[0047] Furthermore, it also includes a display electrically connected to the measuring instrument, and the display is used to display the measurement data.

[0048] Specifically, the ultrasonic controller 9 components include:

[0049] An ultrasonic controller charging cable 10 is arranged at the rear side of the ultrasonic controller 9;

[0050] An ultrasonic controller display screen 11 is arranged on the front side of the ultrasonic controller 9;

[0051] The ultrasonic controller switching button 12 is arranged beside the ultrasonic controller display screen 11 and is used to switch ultrasonic sensors of different channels to realize the sound wave velocity test at different layers of the container.

[0052] Furthermore, it also includes at least one pair of assembly holes arranged on the container, and the ultrasonic transmitting probe and the ultrasonic receiving probe are respectively arranged on the pair of assembly holes.

[0053] Furthermore, the temperature sensor is connected to the heating device through an elastic member.

[0054] The ultrasonic sensor transmitting end 2 and receiving end 3 are embedded in the side of the container 1, the slurry is placed in the container 1, the heating plate 6 is fixed to the outside of the container 1 through the retractable fixing spring 7, the temperature controller plug 8 is plugged into the power supply, the temperature sensor 4 is placed inside the slurry, and the target temperature is set by adjusting the temperature button 14. The temperature controller display 13 will display the set temperature and the current temperature; turn on the ultrasonic controller 9, the ultrasonic controller display 11 can see the measurement data, and the ultrasonic controller switch button 12 can switch the data under different probes; by adjusting different temperatures, multi-point measurement of different temperatures can be achieved. The ultrasonic controller integrates the ultrasonic data received by the ultrasonic sensor, analyzes and processes the multi-point data, and thus obtains the stability of the slurry.

[0055] The evaluation and determination of suspension can be done by a variety of calculation methods. Calculation method 1: The relationship between the speed of sound and the suspension slurry can be described by the following formula: C = (ρ s -ρ f ) / (ρ s -ρ). Where: C is the concentration of suspended solids, ρ s is the density of the suspended solid, ρ f is the density of the slurry, and ρ is the density of the pure liquid. According to this formula, the concentration of suspended solids in the slurry can be calculated based on the density of the slurry, the density of the suspended solids and the density after mixing. Calculation method 2: The relationship between acoustic impedance and particle concentration in the slurry can be described by the following formula, Z=Z0(1+K*ψ), where Z is the acoustic impedance in the slurry, Z0 is the acoustic impedance in the pure liquid, ψ is the volume fraction of the particles in the slurry, and K is a constant related to the shape and size of the particles. When the sound velocity of the slurry changes, the acoustic impedance will also change. The change in acoustic impedance can be calculated according to the formula.

[0056] Determination of slurry suspension: In actual measurement, three measuring points (measuring points 1, 2, and 3) can be selected to evaluate the slurry suspension by the ratio of the suspended solids concentration at the points on both sides of the high and low points to the suspended solids concentration at the bottom measuring point, namely C1, C2, and C3.

[0057] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, 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 should not be understood as a limitation on the present invention.

[0058] The above are only preferred specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A system for measuring engineering slurry, characterized in that: include: A container, the inner cavity of which is used to store engineering slurry; An ultrasonic measuring unit, comprising an ultrasonic transmitting probe, an ultrasonic receiving probe and a measuring instrument arranged in the container, wherein an ultrasonic signal is transmitted by the ultrasonic transmitting probe so that the ultrasonic signal can penetrate the engineering slurry and then be received by the ultrasonic receiving probe, and the measuring instrument is used to generate measurement data based on the ultrasonic signal received by the ultrasonic receiving probe and a preset temperature of the engineering slurry; a heating device, the heating end of which abuts against the container; A control mechanism is electrically connected to the heating device, and is used to control the heating device to heat the engineering slurry in the container to the preset temperature.

2. The engineering slurry measurement system according to claim 1, characterized in that: The measuring instrument is electrically connected to the ultrasonic transmitting probe and the ultrasonic receiving probe respectively.

3. The engineering slurry measurement system according to claim 1, characterized in that: The heating device comprises: a profile and a resistance wire arranged on the profile.

4. The engineering slurry measurement system according to claim 3, characterized in that: The profile is circumferentially wrapped around the outer side of the container.

5. The engineering slurry measurement system according to claim 3, characterized in that: The heating device further comprises: a pair of insulators arranged on the profile, and the resistance wire is located between the pair of insulators.

6. The engineering slurry measurement system according to claim 1, characterized in that: The control mechanism includes: a temperature sensor and a controller electrically connected to the temperature sensor, wherein the temperature sensor is used to be arranged in the container and used to obtain current temperature data of the engineering slurry, and the controller is used to control the heating device to make the engineering slurry in the container reach the preset temperature when determining that the current temperature data is different from the preset temperature.

7. The engineering slurry measurement system according to claim 1, characterized in that: There are multiple values ​​for the preset temperature.

8. The engineering slurry measurement system according to claim 1, characterized in that: The system further comprises a display electrically connected to the measuring instrument, wherein the display is used for displaying the measuring data.

9. The engineering slurry measurement system according to claim 1, characterized in that: The system further comprises at least one pair of assembly holes arranged on the container, and the ultrasonic transmitting probe and the ultrasonic receiving probe are respectively arranged on the pair of assembly holes.

10. The engineering slurry measurement system according to claim 6, characterized in that: The temperature sensor is connected to the heating device via an elastic member.

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