Laser particle size detection system and feeding device

Abstract

The invention discloses a laser particle size detection system and a feeding device, and relates to the technical field of laser particle size analyzers. The system comprises a laser, a lens unit, a sample chamber, a photoelectric detection unit, an imaging unit, a sample introduction unit, a temperature control unit and an information interaction and processing unit. The feeding device comprises a shell, a motor, an annular water sprayer and the like. A sample is preliminarily dispersed by the feeding device, is further dispersed by the ultrasonic disperser and then enters the sample chamber. After the system is started, laser emitted by the laser device is processed and enters the sample chamber, generated diffraction light is received by the photoelectric detection unit, meanwhile, the thermotank and the thermodetector guarantee stable temperature, the water level induction meter monitors the water level, and the information interaction and processing unit processes data and transmits a result to the imaging unit to be displayed. Compared with the prior art, the method has the advantages that the detection precision, the operation convenience and the detection efficiency are improved, the stability and the repeatability are good, the particle size characteristics of the sample can be more accurately reflected, the detection time is shortened, and the operation difficulty is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of laser particle size analyzers, in particular to a laser particle size detection system and a feeding device for cement. Background Art

[0002] In today's cement production field, cement particle size detection plays a vital role in ensuring product quality and performance. For a long time, cement particle size detection usually relies on manual sampling on site and then taking it back to the laboratory for analysis. However, this traditional detection mode has gradually revealed many disadvantages. As far as cement particle size detection is concerned, one of the significant problems is that due to the uneven professional quality and operating experience of sampling and analysis personnel, there are large differences in their selection methods for particle size during sampling. Some personnel may fail to accurately obtain representative particle size samples, or the particle size distribution may change due to improper operation during sampling. For example, the long time interval between sampling and sending to the laboratory has a serious impact on the accuracy and timeliness of cement particle size detection. The long interval causes the central control room to obtain the particle size detection data when the cement particle size in the production process may have changed significantly, and the delayed adjustment cannot correct the particle size deviation in time. In summary, the manual sampling method used in the current cement system for cement particle size detection has obvious defects, which greatly affects the accuracy and efficiency of cement particle size control. It is urgent to introduce more scientific and efficient detection methods to improve this situation. Summary of the invention

[0003] The purpose of the present invention is to provide a laser particle size detection system and a feeding device, which can accurately control the electric valve through signals through information interaction and processing units. This allows the amount of dispersion medium added to be accurately adjusted according to preset standards, avoiding the problem of different addition amounts caused by human operation.

[0004] To achieve the above object, the present invention provides the following technical solutions: A laser particle size detection system comprises a laser, a lens unit, a sample chamber, a photoelectric detection unit, and an imaging unit, and is characterized in that it also comprises a sample feeding unit, a temperature control unit, and an information interaction and processing unit; the laser is physically connected to the lens unit through an optical guide rail or a fixed bracket, the laser beam processed by the lens unit enters the sample chamber through an optical path channel, the light diffracted by the sample chamber irradiates the photoelectric detection unit, the sample chamber side path is connected to the feeding unit through a pipeline, the photoelectric detection unit is connected to the information interaction and processing unit through a circuit, and the information interaction and processing unit is connected to the imaging unit through a signal.

[0005] The temperature control unit comprises a constant temperature box and a thermometer. The constant temperature box is wrapped around the feeding unit, the sample chamber and the outside of the pipeline therein, and the thermometer is distributed inside the constant temperature box.

[0006] The feeding unit includes a feeding device, a dispersion medium storage box, and an ultrasonic disperser. The dispersion medium storage box is connected to the feeding device through a high-pressure water inlet pipe, and the pipe is equipped with a high-pressure water pump and an electric valve; the feeding device is connected to the ultrasonic disperser through a pipe, and the ultrasonic disperser is connected to the sample chamber through a pipe, and an electric valve is installed in the pipe between the ultrasonic disperser and the sample chamber, and the electric valves are connected to the information exchange and processing unit through signals.

[0007] A water level sensor is installed inside the sample chamber, and the water level sensor is connected to the information exchange and processing unit through signals.

[0008] The information interaction and processing unit includes a data processing module, a communication module and a data storage module. The data processing module, the communication module and the data storage module are directly connected through a data circuit. The communication module is used to receive and send signals.

[0009] A laser particle size detection feeding device, characterized in that it comprises a housing (6), a motor (7), an annular water jet (5), a rotating shaft (4), a threaded feed port (3), a discharge plate (2), a threaded cover (1), an ultrasonic disperser (8), and a high-pressure water inlet pipe (9); the housing (6) is provided with an annular water jet (5) rotatably mounted inside, the opening side of the annular water jet (5) is rotatably connected to the threaded feed port (3) via the rotating shaft (4), and the threaded feed port (3) is fixed to the opening side end of the housing (6); a sliding groove is provided inside the threaded feed port (3), and the discharge plate (2) is slidably mounted in the sliding groove; the threaded cover (1) and the threaded feed port (3) are provided with corresponding threaded structures and are threadedly connected via the corresponding threaded structures.

[0010] The annular sprinkler (5) is a plurality of annular brackets, the plurality of annular brackets are connected by pipes, equidistant sprinkler ports are arranged inside the plurality of annular brackets, a rotating shaft bracket is fixedly mounted on the side end of the annular sprinkler (5), the annular sprinkler (5) is a hollow structure as a whole, and an opening is arranged at the center of the rotating shaft bracket for connection with the motor (7).

[0011] The lower end of the housing (6) is connected to the ultrasonic disperser (8) through a pipeline, and the ultrasonic disperser (8) is connected to the sample chamber through a pipeline.

[0012] A motor (7) is fixedly mounted on the closed side of the housing (6), and the motor (7) drives the annular sprinkler (5) to rotate via a rotating shaft.

[0013] The rotating shaft of the motor (7) is a hollow structure. The rotating shaft of the motor (7) is fixedly connected to a rotating shaft bracket at the side end of the annular sprinkler (5). The other end of the rotating shaft of the motor (7) is rotatably connected to a high-pressure water inlet pipe (9) via a rotating shaft seal. The high-pressure water inlet pipe (9) passes through the dispersed medium storage box.

[0014] Rotate the threaded cover (1) to remove it, place the sample to be tested in the discharge groove on the inner side of the discharge plate (2), place the discharge plate (2) in the sliding groove, and then install the threaded cover (1); then start the motor (7), the motor (7) drives the annular water sprayer (5) to rotate, and at the same time open the electric valve and high-pressure water pump on the high-pressure water inlet pipe (9), so that the dispersion medium is flushed on the sample through the annular water sprayer (5) to achieve preliminary dispersion. The sample after preliminary dispersion enters the ultrasonic disperser (8) through the pipe at the lower end of the shell (6) for further dispersion, and is finally transmitted to the sample chamber through the pipe. During the whole process, monitoring components such as water level sensors and thermometers are used to monitor the water level, temperature and other parameters in the feeding device and related pipes in real time to ensure the stability and reliability of the detection conditions.

[0015] After starting the system, the laser at the starting position of the system will emit a laser beam of specific wavelength and intensity. This laser beam is accurately and efficiently transmitted to the lens unit through an optical rail or a stable fixed bracket. The lens unit performs a series of processing such as focusing and collimation on the received laser to ensure that the characteristics of the laser beam meet the requirements of subsequent detection. After being processed by the lens unit, the laser beam enters the sample chamber smoothly and smoothly along the specially designed optical path channel. The sample in the sample chamber interacts with the laser to produce diffraction light. In the core area of ​​the sample chamber, the sample and the laser beam irradiate to produce diffraction light. These diffraction lights are accurately irradiated to the photoelectric detection unit; at the same time, the constant temperature box provides a stable temperature environment for the feeding unit, sample chamber and related pipelines. The thermometers distributed in various parts of the constant temperature box monitor the temperature in real time and feed back the data to the information interaction and processing unit. The water level sensor inside the sample chamber monitors the water level in real time and transmits the data to the information interaction and processing unit. The photoelectric detection unit converts the received optical signal into an electrical signal and transmits it to the information interaction and processing unit through the circuit. The data processing module in the information interaction and processing unit converts these quantitative scattering data through appropriate optical models and mathematical processes to obtain the percentage of particle volume in a series of discrete particle size segments relative to the total volume of particles, thereby obtaining the particle size volume distribution. The processed data is stored in the data storage module, and the results are sent to the imaging unit through the communication module for result display. During the detection process, the working status and parameters of each component of the system should be continuously monitored, and if abnormalities are found, adjustments and repairs should be made in a timely manner.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The detection accuracy is significantly improved: the present invention can more accurately reflect the particle size characteristics of the sample and reduce errors by precisely controlling the amount of dispersion medium added and optimizing the sample dispersion process. Improve the reliability of test results. Enhanced ease of operation: The design of the feeding device makes sample addition and processing easier, reducing the difficulty of operation and the requirements for the professional skills of the operator.

[0017] Detection efficiency is greatly improved: Automated processes and fast data processing and transmission shorten detection time and can provide guidance for production in a more timely manner.

[0018] Good stability and repeatability: The coordinated work of various system components and the stable temperature control unit ensure the consistency of the test conditions, making the test results more stable and repeatable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A connection diagram of a laser particle size detection system of the present invention; Figure 2 This is a three-dimensional exploded view of a laser particle size detection feeding device of the present invention; Figure 3 This is a three-dimensional structural diagram of a laser particle size detection feeding device of the present invention; Figure 4 This is a stereoscopic diagram of a laser particle size detection feeding device of the present invention; In the figure: 1. threaded cover; 2. discharge plate; 3. threaded feed port; 4. rotating shaft; 5. annular water sprayer; 6. housing; 7. motor; 8. ultrasonic disperser; 9. high-pressure water inlet pipe. Specific implementation methods

[0020] The technical solutions in the embodiments of the present invention will be fully described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] As shown in the figure, a laser particle size detection system includes a laser, a lens unit, a sample chamber, a photoelectric detection unit, and an imaging unit, and is characterized in that it also includes a sample feeding unit, a temperature control unit, and an information interaction and processing unit; the laser is physically connected to the lens unit through an optical guide rail or a fixed bracket, the laser beam processed by the lens unit enters the sample chamber through an optical path channel, the light diffracted by the sample chamber is irradiated to the photoelectric detection unit, the sample chamber side path is connected to the feeding unit through a pipeline, the photoelectric detection unit is connected to the information interaction and processing unit through a circuit, and the information interaction and processing unit is connected to the imaging unit through a signal.

[0022] The temperature control unit comprises a constant temperature box and a thermometer. The constant temperature box is wrapped around the feeding unit, the sample chamber and the outside of the pipeline therein, and the thermometer is distributed inside the constant temperature box.

[0023] The feeding unit includes a feeding device, a dispersion medium storage box, and an ultrasonic disperser. The dispersion medium storage box is connected to the feeding device through a high-pressure water inlet pipe, and the pipe is equipped with a high-pressure water pump and an electric valve; the feeding device is connected to the ultrasonic disperser through a pipe, and the ultrasonic disperser is connected to the sample chamber through a pipe, and an electric valve is installed in the pipe between the ultrasonic disperser and the sample chamber, and the electric valves are connected to the information exchange and processing unit through signals.

[0024] A water level sensor is installed inside the sample chamber, and the water level sensor is connected to the information exchange and processing unit through signals.

[0025] The information interaction and processing unit includes a data processing module, a communication module and a data storage module. The data processing module, the communication module and the data storage module are directly connected through a data circuit. The communication module is used to receive and send signals.

[0026] A laser particle size detection feeding device, characterized in that it comprises a housing (6), a motor (7), an annular water jet (5), a rotating shaft (4), a threaded feed port (3), a discharge plate (2), a threaded cover (1), an ultrasonic disperser (8), and a high-pressure water inlet pipe (9); the housing (6) is provided with an annular water jet (5) rotatably mounted inside, the opening side of the annular water jet (5) is rotatably connected to the threaded feed port (3) via the rotating shaft (4), and the threaded feed port (3) is fixed to the opening side end of the housing (6); a sliding groove is provided inside the threaded feed port (3), and the discharge plate (2) is slidably mounted in the sliding groove; the threaded cover (1) and the threaded feed port (3) are provided with corresponding threaded structures and are threadedly connected via the corresponding threaded structures.

[0027] The annular sprinkler (5) is a plurality of annular brackets, the plurality of annular brackets are connected by pipes, equidistant sprinkler ports are arranged inside the plurality of annular brackets, a rotating shaft bracket is fixedly mounted on the side end of the annular sprinkler (5), the annular sprinkler (5) is a hollow structure as a whole, and an opening is arranged at the center of the rotating shaft bracket for connection with the motor (7).

[0028] The lower end of the housing (6) is connected to the ultrasonic disperser (8) through a pipeline, and the ultrasonic disperser (8) is connected to the sample chamber through a pipeline.

[0029] A motor (7) is fixedly mounted on the closed side of the housing (6), and the motor (7) drives the annular sprinkler (5) to rotate via a rotating shaft.

[0030] The rotating shaft of the motor (7) is a hollow structure. The rotating shaft of the motor (7) is fixedly connected to a rotating shaft bracket at the side end of the annular sprinkler (5). The other end of the rotating shaft of the motor (7) is rotatably connected to a high-pressure water inlet pipe (9) via a rotating shaft seal. The high-pressure water inlet pipe (9) passes through the dispersed medium storage box.

[0031] Rotate the threaded cover (1) to remove it, place the sample to be tested in the discharge groove on the inner side of the discharge plate (2), place the discharge plate (2) in the sliding groove, and then install the threaded cover (1); then start the motor (7), the motor (7) drives the annular water sprayer (5) to rotate, and at the same time open the electric valve and high-pressure water pump on the high-pressure water inlet pipe (9), so that the dispersion medium is flushed on the sample through the annular water sprayer (5) to achieve preliminary dispersion. The sample after preliminary dispersion enters the ultrasonic disperser (8) through the pipe at the lower end of the shell (6) for further dispersion, and is finally transmitted to the sample chamber through the pipe. During the whole process, monitoring components such as water level sensors and thermometers are used to monitor the water level, temperature and other parameters in the feeding device and related pipes in real time to ensure the stability and reliability of the detection conditions.

[0032] After starting the system, the laser at the starting position of the system will emit a laser beam of specific wavelength and intensity. This laser beam is accurately and efficiently transmitted to the lens unit through an optical rail or a stable fixed bracket. The lens unit performs a series of processing such as focusing and collimation on the received laser to ensure that the characteristics of the laser beam meet the requirements of subsequent detection. After being processed by the lens unit, the laser beam enters the sample chamber smoothly and smoothly along the specially designed optical path channel. The sample in the sample chamber interacts with the laser to produce diffraction light. In the core area of ​​the sample chamber, the sample and the laser beam irradiate to produce diffraction light. These diffraction lights are accurately irradiated to the photoelectric detection unit; at the same time, the constant temperature box provides a stable temperature environment for the feeding unit, sample chamber and related pipelines. The thermometers distributed in various parts of the constant temperature box monitor the temperature in real time and feed back the data to the information interaction and processing unit. The water level sensor inside the sample chamber monitors the water level in real time and transmits the data to the information interaction and processing unit. The photoelectric detection unit converts the received optical signal into an electrical signal and transmits it to the information interaction and processing unit through the circuit. The data processing module in the information interaction and processing unit converts these quantitative scattering data through appropriate optical models and mathematical processes to obtain the percentage of particle volume in a series of discrete particle size segments relative to the total volume of particles, thereby obtaining the particle size volume distribution. The processed data is stored in the data storage module, and the results are sent to the imaging unit through the communication module for result display. During the detection process, the working status and parameters of each component of the system should be continuously monitored, and if abnormalities are found, adjustments and repairs should be made in a timely manner.

Claims

1. A laser particle size detection system, comprising a laser, a lens unit, a sample chamber, a photoelectric detection unit, and an imaging unit, characterized in that It also includes a sample feeding unit, a temperature control unit, and an information interaction and processing unit; the laser is physically connected to the lens unit through an optical guide rail or a fixed bracket, the laser beam processed by the lens unit enters the sample chamber through an optical path channel, the light diffracted by the sample chamber is irradiated to the photoelectric detection unit, the sample chamber side path is connected to the feeding unit through a pipeline, the photoelectric detection unit is connected to the information interaction and processing unit through a circuit, and the information interaction and processing unit is connected to the imaging unit through a signal.

2. A laser particle size detection system according to claim 1, characterized in that: The temperature control unit comprises a constant temperature box and a thermometer. The constant temperature box is wrapped around the feeding unit, the sample chamber and the outside of the pipeline therein, and the thermometer is distributed inside the constant temperature box.

3. A laser particle size detection system according to claim 1, characterized in that: The feeding unit includes a feeding device, a dispersion medium storage box, and an ultrasonic disperser. The dispersion medium storage box is connected to the feeding device through a high-pressure water inlet pipe, and the pipe is equipped with a high-pressure water pump and an electric valve; the feeding device is connected to the ultrasonic disperser through a pipe, and the ultrasonic disperser is connected to the sample chamber through a pipe, and an electric valve is installed in the pipe between the ultrasonic disperser and the sample chamber, and the electric valves are connected to the information exchange and processing unit through signals.

4. A laser particle size detection system according to claim 1, characterized in that: A water level sensor is installed inside the sample chamber, and the water level sensor is connected to the information exchange and processing unit through signals.

5. A laser particle size detection system according to claim 1, characterized in that: The information interaction and processing unit includes a data processing module, a communication module and a data storage module. The data processing module, the communication module and the data storage module are directly connected through a data circuit. The communication module is used to receive and send signals.

6. A laser particle size detection feeding device, characterized in that The invention comprises a housing (6), a motor (7), an annular water jet (5), a rotating shaft (4), a threaded feed port (3), a discharge plate (2), a threaded cover (1), an ultrasonic disperser (8), and a high-pressure water inlet pipe (9); the annular water jet (5) is rotatably mounted inside the housing (6); the opening side of the annular water jet (5) is rotatably connected to the threaded feed port (3) via the rotating shaft (4); the threaded feed port (3) is fixed to the opening side end of the housing (6); a sliding groove is provided inside the threaded feed port (3), and the discharge plate (2) is slidably mounted in the sliding groove; the threaded cover (1) and the threaded feed port (3) are provided with corresponding threaded structures, and are threadedly connected via the corresponding threaded structures.

7. A laser particle size detection feeding device according to claim 6, characterized in that: The annular sprinkler (5) is a plurality of annular brackets, the plurality of annular brackets are connected by pipes, equidistant sprinkler ports are arranged inside the plurality of annular brackets, a rotating shaft bracket is fixedly mounted on the side end of the annular sprinkler (5), the annular sprinkler (5) is a hollow structure as a whole, and an opening is arranged at the center of the rotating shaft bracket for connection with the motor (7).

8. The laser particle size detection feeding device according to claim 6, characterized in that: The lower end of the housing (6) is connected to the ultrasonic disperser (8) through a pipeline, and the ultrasonic disperser (8) is connected to the sample chamber through a pipeline.

9. A laser particle size detection feeding device according to claim 6, characterized in that: A motor (7) is fixedly mounted on the closed side of the housing (6), and the motor (7) drives the annular sprinkler (5) to rotate via a rotating shaft.

10. A laser particle size detection feeding device according to claim 6, characterized in that: The rotating shaft of the motor (7) is a hollow structure. The rotating shaft of the motor (7) is fixedly connected to a rotating shaft bracket at the side end of the annular sprinkler (5). The other end of the rotating shaft of the motor (7) is rotatably connected to a high-pressure water inlet pipe (9) via a rotating shaft seal. The high-pressure water inlet pipe (9) passes through the dispersed medium storage box.

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