A rheological testing device

Abstract

This utility model discloses a rheological testing device, relating to the technical field of testing equipment. It includes a shell, a container, a stirring system, a temperature control system, and a rheological testing system. The shell has a testing chamber; the container is placed inside the testing chamber of the shell or detachably fixed to the shell; the stirring system is detachably connected to the shell, and its working end is located inside the container, capable of stirring the sample inside the container; the temperature control system can adjust the temperature inside the testing chamber, the container, or the sample, maintaining the temperature within a set range; the rheological testing system can acquire the rheological parameters of the sample inside the container. This utility model ensures the accuracy and reliability of the test.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a rheological testing device. Background Technology

[0002] In modern industrial production, especially in mining, building materials, and other fields requiring rheological testing, the rheological properties of samples are of great significance for the control and optimization of their processes. Foamed filling slurry, a sample composed of materials such as cement, slag, and coal gangue mixed with a foaming agent, plays a crucial role in applications such as mine filling and underground engineering. Its rheological properties directly affect the filling effect and engineering safety. Therefore, measuring and evaluating the rheological characteristics of rheological fluids such as foamed filling slurry under efficient and accurate conditions is particularly important.

[0003] The rheological properties of samples such as foamed filling slurries are greatly affected by temperature. The rheological characteristics of foamed filling slurries may change significantly at different temperatures. Traditional rheological testing devices lack temperature control systems, making it impossible to accurately adjust and monitor temperature fluctuations, leading to unstable experimental results and even affecting the physical and chemical reaction processes of the samples.

[0004] Traditional rheological testing devices have components such as containers and rotor blades that come into contact with the rheological fluid fixedly attached to the equipment. This has the following drawbacks: First, it is inconvenient to thoroughly clean and maintain these components, especially after testing samples with strong viscosity and adhesion, such as foamed filling slurries. This can easily lead to sample residue, causing cross-contamination between different samples and affecting the results of subsequent tests. Second, it is impossible to replace different rotor blades according to different samples, thus limiting the range of applications. Utility Model Content

[0005] The purpose of this invention is to provide a rheological testing device to solve the problems existing in the prior art, which can ensure the accuracy and reliability of the test, and is flexible and widely applicable.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a rheological testing device, including a shell, a container, a stirring system, a temperature control system, and a rheological testing system, wherein:

[0008] The outer casing is provided with a test chamber;

[0009] The container is placed inside the test chamber of the housing or is detachably fixed to the housing;

[0010] The stirring system is detachably connected to the outer shell, and the working end of the stirring system is disposed inside the container, and the working end of the stirring system is capable of stirring the sample inside the container;

[0011] The temperature control system can adjust the temperature inside the test chamber, the temperature inside the container, or the temperature of the sample, and the temperature control system can keep the temperature inside the test chamber, the temperature inside the container, or the temperature of the sample within a set temperature range;

[0012] The rheological testing system is capable of acquiring the rheological parameters of the sample inside the container.

[0013] Preferably, the temperature control system includes a heater, a cooler, a temperature detector, and a temperature controller. The heater, the cooler, and the temperature detector are all signal-connected to the temperature controller. The temperature detector is disposed inside the test chamber and is used to monitor the temperature of the sample. The heater can heat the sample inside the container, and the cooler can cool the sample inside the container.

[0014] Preferably, the temperature controller can control the heater to turn on and off, and the temperature controller can control the cooler to turn on and off.

[0015] Preferably, the stirring system includes a drive device, a rotating shaft, and rotor blades. The drive device is detachably fixedly connected to the housing. The drive device is connected to one end of the rotating shaft and can drive the rotating shaft to rotate around the axis of the rotating shaft. The rotor blades are fixedly connected to the other end of the rotating shaft. The rotor blades are disposed inside the container and can stir the sample inside the container.

[0016] Preferably, the rotor blades are detachably fixed to the other end of the rotating shaft.

[0017] Preferably, it also includes an alarm system, which is signal-connected to the temperature control system and the drive device.

[0018] Preferably, it also includes a speed sensor, which is connected to the output shaft of the drive device or the rotating shaft. The speed sensor is used to detect the rotational speed of the output shaft of the drive device or the rotating shaft, and the speed sensor is connected to the alarm system signal.

[0019] Preferably, it also includes a humidity control system, which is capable of adjusting the humidity inside the test chamber or the container, and the humidity control system is capable of maintaining the humidity inside the test chamber or the container within a set humidity range.

[0020] Preferably, the device further includes a telescopic support, which is disposed on the inner bottom wall of the outer shell, and the container is disposed above the telescopic support. The telescopic support is capable of moving the container along the height direction of the container.

[0021] Preferably, it also includes an interactive system, which is signal-connected to the rheological testing system, the driving device, the temperature control system, and the alarm system. The interactive system can be used to set the driving speed of the driving device, the driving duration of the driving device, and to display the rheological parameters acquired by the rheological testing system, the temperature information of the temperature control system, and the alarm information.

[0022] The present invention achieves the following technical advantages over the prior art:

[0023] This utility model provides a rheological testing device, including a shell, a container, a stirring system, a temperature control system, and a rheological testing system. The shell has a testing chamber; the container is placed inside the testing chamber of the shell or is detachably fixed to the shell; the stirring system is detachably connected to the shell, and the working end of the stirring system is located inside the container, which can stir the sample inside the container; the temperature control system can adjust the temperature inside the testing chamber or the container, and can maintain the temperature inside the testing chamber or the container within a set temperature range.

[0024] This invention applies shear force to the sample through a stirring system, causing the sample to flow and deform. Simultaneously, a rheological testing system performs rheological tests on the sample to obtain its rheological parameters. The temperature control system can adjust the temperature of the testing environment according to testing requirements and maintain it within a set range, achieving precise temperature control and ensuring the accuracy and reliability of the test. Both the container and the stirring system are detachably housed within the outer casing, allowing for easy removal and cleaning. This reduces cleaning difficulty, ensures effective cleaning, prevents sample residue and cross-contamination, and further guarantees the accuracy of the test. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the rheological testing device provided by this utility model;

[0027] In the diagram: 100, rheological testing device; 1, outer shell; 101, testing chamber; 2, stirring system; 201, rotating shaft; 3, temperature detector; 4, temperature control knob; 5, humidity detector; 6, humidity control knob; 7, main switch; 8, drive power adjustment knob; 9, external computer interface; 10, control system; 11, rheological testing system; 12, interactive system; 13, observation window; 14, temperature controller; 15, container; 16, first quick-release system; 17, humidity controller; 18, second quick-release system. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The purpose of this invention is to provide a rheological testing device to solve the problems existing in the prior art, which can ensure the accuracy and reliability of the test, and is flexible and widely applicable.

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1 As shown, this utility model provides a rheological testing device 100, including a shell 1, a container 15, a stirring system 2, a temperature control system, and a rheological testing system 11, wherein:

[0032] The outer casing 1 is provided with a test chamber 101;

[0033] The container 15 is placed inside the test chamber 101 of the outer shell 1 or is detachably fixedly connected to the outer shell 1; the container 15 is preferably detachably fixedly connected to the outer shell 1.

[0034] The stirring system 2 is detachably connected to the outer shell 1. The working end of the stirring system 2 is located inside the container 15, and the working end of the stirring system 2 can stir the sample inside the container 15.

[0035] The temperature control system can adjust the temperature inside the test chamber 101, the temperature inside the container 15, or the temperature of the sample. The temperature control system can keep the temperature inside the test chamber 101, the temperature inside the container 15, or the temperature of the sample within the set temperature range.

[0036] The rheological testing system 11 can acquire the rheological parameters of the sample inside the container 15.

[0037] This invention uses a shell 1 to support and protect the container 15 and the stirring system 2. The stirring system 2 applies shear force to the sample, causing it to flow and deform. Simultaneously, a rheological testing system 11 performs rheological tests on the sample to obtain its rheological parameters. The temperature control system can adjust the temperature of the testing environment according to the testing requirements and maintain the temperature within a set range, achieving precise temperature control. It can meet various temperature conditions, including low-temperature and high-temperature testing, reducing errors during the experiment and ensuring the accuracy and reliability of the test. Both the container 15 and the stirring system 2 are detachably housed within the shell 1, allowing for easy removal and cleaning. This reduces cleaning difficulty, ensures effective cleaning, prevents sample residue and cross-contamination, and further guarantees the accuracy of the test. The stirring system 2 can be selected according to the type of sample; for example, for fluids containing air bubbles, a stirring system 2 with a rotor that can effectively disperse the gas can be selected, making the application more flexible and wider in scope.

[0038] In this invention, the temperature control system includes a heater, a cooler, a temperature detector 3, and a temperature controller 14. The heater, cooler, and temperature detector 3 are all signal-connected to the temperature controller 14. The temperature detector 3 is located inside the test chamber 101 and is used to monitor the sample temperature. The heater heats the sample inside the container 15, and the cooler cools the sample inside the container 15. The temperature detector 3 can detect the temperature in real time, and the temperature controller 14 can control the heater and / or cooler in real time based on the temperature signal detected by the temperature detector 3 to achieve precise temperature control.

[0039] In this invention, the temperature controller 14 controls the opening and closing of the heater and the cooler. When the temperature detected by the temperature detector 3 is higher than the set temperature range, the temperature controller 14 controls the heater to close and the cooler to open for cooling; conversely, when the temperature detected by the temperature detector 3 is lower than the set temperature range, the temperature controller 14 controls the cooler to close and the heater to open for heating, thereby achieving precise temperature control.

[0040] In this invention, the stirring system 2 includes a drive device, a rotating shaft 201, and rotor blades. The drive device is detachably and fixedly connected to the outer casing 1. The drive device is connected to one end of the rotating shaft 201 and can drive the rotating shaft 201 to rotate around its axis. The rotor blades are connected to the other end of the rotating shaft 201. The rotor blades are disposed inside the container 15 and can stir the sample inside the container 15. It should be noted that a gap is provided between the rotor blades and the inner wall of the container 15. The drive device drives the rotor blades to rotate via the rotating shaft 201 to apply shear force to the sample.

[0041] In this invention, the rotor blades are detachably and fixedly connected to the other end of the rotating shaft 201, and the rotor blades can be replaced as needed, further increasing the flexibility of application.

[0042] In this invention, the rotating shaft 201 is connected to the rotor blades through the first quick-release system 16, and the driving device of the stirring system 2 is connected to the outer casing 1 through the second quick-release system 18, so as to realize the quick disassembly and assembly of the stirring system 2, simplify the maintenance and cleaning process of the equipment, improve cleaning efficiency, reduce experimental downtime, improve the utilization efficiency of the equipment, and improve the detection efficiency.

[0043] This invention also includes an alarm system, which is signal-connected to the temperature control system and signal-connected to the drive device. When an abnormality such as excessively high temperature occurs, the temperature control system can trigger the alarm system, which can provide visual and audible alerts to remind the user to adjust or check the equipment. The alarm system or temperature control system can also control the drive device to stop working in case of system malfunction, preventing damage to the equipment.

[0044] This invention also includes a humidity control system 10, which can adjust the humidity inside the test chamber 101 or the container 15 and keep the humidity inside the test chamber 101 or the container 15 within a set humidity range.

[0045] In this invention, the humidity control system 10 includes a humidifier, a dehumidifier, a humidity detector 5, and a humidity controller 17. The humidifier, dehumidifier, and humidity detector 5 are signal-connected to the humidity controller 17. The humidity detector 5 is used to monitor the humidity inside the test chamber 101 or container 15. The humidifier can increase the humidity inside the test chamber 101 or container 15; the dehumidifier can decrease the humidity inside the test chamber 101 or container 15. The humidity detector 5 can detect the humidity in real time, and the humidity controller 17 can control the humidifier and / or dehumidifier in real time according to the humidity signal detected by the humidity detector 5 to achieve precise humidity control.

[0046] In this invention, the humidity controller 17 can control the humidifier to turn on and off, and the humidity controller 17 can control the dehumidifier to turn on and off. When the humidity detected by the humidity detector 5 is greater than the set humidity range, the humidity controller 17 controls the humidifier to turn off and controls the dehumidifier to turn on for dehumidification; conversely, when the humidity detected by the humidity detector 5 is less than the set humidity range, the humidity controller 17 controls the dehumidifier to turn off and controls the humidifier to turn on for humidification, thereby achieving precise humidity control.

[0047] This invention also includes a telescopic support, which is disposed on the inner bottom wall of the outer shell 1. The container 15 is disposed above the telescopic support, and the telescopic support can move the container 15 in the height direction. By adjusting the height of the container 15, the vertical position of the rotor blades within the container 15 can be adjusted to meet different experimental requirements. In a preferred embodiment, the telescopic support includes a support frame and a telescopic device. The two ends of the telescopic device are fixedly connected to the inner bottom wall of the outer shell 1 and the support frame, respectively. The telescopic device can extend and retract in the height direction to raise and lower the container 15. The telescopic device can be in various forms, such as a scissor-type telescopic mechanism or a telescopic rod.

[0048] This invention also includes an interactive system 12, which is signal-connected to the rheological testing system 11, the drive device, and the alarm system. The interactive system 12 can be used to set the drive speed of the drive device, preferably a motor, thereby changing the speed of the output shaft of the drive device, adjusting the speed of the rotor blades, and thus adjusting the shear rate and shear stress. The interactive system 12 can also be used to set the operating duration of the drive device, enabling measurements in various modes such as different speeds and test times, making the equipment more adaptable and flexible, and able to cover a wider range of experimental needs. The interactive system 12 can display the rheological parameters acquired by the rheological testing system 11, the temperature information from the temperature control system, and alarm information, facilitating timely viewing by staff.

[0049] In this invention, the outer casing 1 is provided with a side door. When the side door is closed, the entire structure is sealed. The outer casing 1 carries all the functional components of the rheological testing device 100. When the side door is opened, the container 15 and the stirring system 2 can be removed and installed. Observation windows 13 are provided on the side walls of both the side door and the container 15, and the observation windows 13 are arranged opposite to each other, so that the sample testing process can be observed through the observation windows 13 on both. The container 15 is located in the middle of the outer casing 1. The temperature controller 14 and the interaction system 12 are fixedly connected to the front or side of the outer casing 1 for easy operation by the operator. The heater, cooler, humidifier, and dehumidifier are fixedly connected to the inner side wall of the outer casing 1, such as on the side walls on both sides of the side door or on the back side wall opposite to the side door.

[0050] This invention also includes a data acquisition module, which is communicatively connected to the rheological testing system 11, temperature detector 3, humidity detector 5, temperature controller 14, humidity controller 17, and interactive system 12. This module receives rheological parameter information, temperature information, and humidity information, and transmits the detected temperature and humidity information to the temperature controller 14 and humidity controller 17 respectively, while sending the detected rheological parameter information to the interactive device. The data acquisition module, temperature controller 14, humidity controller 17, and interactive system 12 can be independent components or integrated into a central control unit. The central control unit is the core of the control system 10, typically composed of an embedded processor or a PLC (Programmable Logic Controller). It is responsible for receiving signals from various sensors and input devices, performing data processing, logic control, and outputting instructions, coordinating the work of each subsystem. A data acquisition module with high precision and high frequency data acquisition capabilities is selected to improve testing accuracy.

[0051] In this invention, the rotor blades can be designed in different shapes and materials according to measurement requirements, including but not limited to flat rotors, conical rotors, and spiral rotors. Each type of rotor blade is suitable for different types of fluids. The temperature detector 3 is a temperature sensor, the humidity detector 5 is a hygrometer, the heater is an electric heating wire, and the coolant of the cooler circulates in the cooling channel on the container 15 for cooling.

[0052] In this invention, the interactive system 12 includes a touch control panel, such as a touch screen, through which users can select and switch measurement modes. The interactive system 12 may also include an external computer interface 9, which connects to a computer, allowing users to select and switch measurement modes via the computer. The touch control panel and the external computer interface 9 (preferably a USB interface) are arranged adjacent to each other or share a common installation location for convenient operation. The interactive system 12 may also include buttons such as a temperature control knob 4, a humidity control knob 6, a drive power adjustment knob 8, and a main power switch 7, connected to the control system 10, for users to adjust the temperature, humidity, and drive power, and to turn the entire device on or off.

[0053] In this invention, the rheological testing system 11 includes a torque sensor, a shear force sensor, and a rheological controller. Both the torque sensor and the shear force sensor are connected to the rheological controller. The torque sensor measures the torque when the shaft 201 or rotor blades rotate within the sample, while the shear force sensor measures the shear force applied to the sample. The rheological controller receives the detection data from the torque sensor and the shear force sensor to obtain rheological parameters. The rheological controller can also be integrated into a central control unit.

[0054] This invention also includes a speed sensor, which is connected to the output shaft or rotating shaft 201 of the drive device. The speed sensor is used to detect the speed of the output shaft or rotating shaft 201 of the drive device. The speed sensor is connected to the alarm system signal. When the speed is too high, the alarm system will sound an alarm and control the drive device to stop working.

[0055] In this invention, the inner wall of the container 15, the rotating shaft 201, and the rotor blades are provided with an anti-stick coating to reduce sample residue, reduce cleaning difficulty, ensure the cleanliness of the equipment, improve testing accuracy, and ensure the reliability and safety of the container 15, the rotating shaft 201, and the rotor blades during long-term use.

[0056] The workflow of this utility model is as follows:

[0057] Preparation phase: The operator installs and secures the rotor blades and container 15, ensuring all components are stable. Appropriate rotor blades are selected according to experimental requirements, the speed range is adjusted, and the operating conditions of the temperature control system are set.

[0058] Start-up phase: After the equipment is started, the drive motor begins to rotate, transmitting power to the rotor blades through the shaft 201, causing them to rotate within the container 15. At this time, the data acquisition system begins to record real-time data, such as rotational speed, shear stress, and temperature.

[0059] Testing Procedure: Samples such as foamed filling slurry are added to container 15. The temperature control system adjusts the temperature according to preset parameters to ensure the test is conducted within the required temperature range. The rotation of the rotor blades generates shear force, affecting the rheological properties of the sample. The data acquisition system records the data in real time.

[0060] Data processing and display: Experimental data is transmitted to the central control unit via the data acquisition module. Operators can view rheological curves, shear stress, and other data in real time through the interactive system 12. Simultaneously, the data can be exported for further analysis.

[0061] Cleaning and Maintenance: After testing, the operator can disassemble the mixing system 2 and container 15 for cleaning. The cleaning system is connected to a water pipe via a dedicated pipeline to quickly clean the mixing system 2 and container 15, preventing sample residue.

[0062] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A rheological testing device, characterized in that: Includes an outer shell, container, stirring system, temperature control system, and rheological testing system, among which: The outer casing is provided with a test chamber; The container is placed inside the test chamber of the housing or is detachably fixed to the housing; The stirring system is detachably connected to the outer shell, and the working end of the stirring system is disposed inside the container, and the working end of the stirring system is capable of stirring the sample inside the container; The temperature control system can adjust the temperature inside the test chamber, the temperature inside the container, or the temperature of the sample, and the temperature control system can keep the temperature inside the test chamber, the temperature inside the container, or the temperature of the sample within a set temperature range; The rheological testing system is capable of acquiring the rheological parameters of the sample inside the container.

2. The rheological testing apparatus according to claim 1, characterized in that: The temperature control system includes a heater, a cooler, a temperature detector, and a temperature controller. The heater, the cooler, and the temperature detector are all signal-connected to the temperature controller. The temperature detector is located inside the test chamber and is used to monitor the temperature of the sample. The heater can heat the sample inside the container, and the cooler can cool the sample inside the container.

3. The rheological testing apparatus according to claim 2, characterized in that: The temperature controller can control the heater to turn on and off, and the temperature controller can control the cooler to turn on and off.

4. The rheological testing apparatus according to claim 1, characterized in that: The stirring system includes a drive device, a rotating shaft, and rotor blades. The drive device is detachably fixed to the outer casing. The drive device is connected to one end of the rotating shaft and can drive the rotating shaft to rotate around the axis of the rotating shaft. The rotor blades are connected to the other end of the rotating shaft. The rotor blades are disposed inside the container and can stir the sample inside the container.

5. The rheological testing apparatus according to claim 4, characterized in that: The rotor blades are detachably fixed to the other end of the shaft.

6. The rheological testing apparatus according to claim 4, characterized in that: It also includes an alarm system, which is signal-connected to the temperature control system and the drive device.

7. The rheological testing apparatus according to claim 6, characterized in that: It also includes a speed sensor, which is connected to the output shaft or the rotating shaft of the drive device. The speed sensor is used to detect the speed of the output shaft or the rotating shaft of the drive device, and the speed sensor is connected to the alarm system signal.

8. The rheological testing apparatus according to claim 1, characterized in that: It also includes a humidity control system, which is capable of adjusting the humidity inside the test chamber or the container, and maintaining the humidity inside the test chamber or the container within a set humidity range.

9. The rheological testing apparatus according to claim 1, characterized in that: It also includes a telescopic support, which is disposed on the inner bottom wall of the outer shell, and the container is disposed above the telescopic support. The telescopic support can drive the container to move along the height direction of the container.

10. The rheological testing apparatus according to claim 7, characterized in that: It also includes an interactive system, which is signal-connected to the rheological testing system, the driving device, the temperature control system, and the alarm system. The interactive system can be used to set the driving speed of the driving device, set the on-time of the driving device, and display the rheological parameters acquired by the rheological testing system, the temperature information of the temperature control system, and the alarm information.

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