Boiler coal slag LIBS (laser-induced breakdown spectroscopy) rapid detection device

Abstract

The utility model relates to a boiler fire coal slag LIBS (laser-induced breakdown spectroscopy) rapid detection device which is applied to the field of detection devices and comprises an electric conveying belt, an LIBS detection device is arranged at the upper end of the electric conveying belt, a motor is fixedly connected to the middle of the front end of the LIBS detection device, and a pair of autorotation vertical rods is fixedly connected to the output end of the motor. The end, away from the motor, of the rotation vertical rod is fixedly connected with a U-shaped material taking frame, the front end of the LIBS detection device is fixedly connected with a material conveying channel, the material conveying channel is located on the rear side of the motor, the front end of the LIBS detection device is fixedly connected with a spectrograph, the spectrograph is located on the upper side of the material conveying channel, and the lower end of the spectrograph is fixedly connected with a pulse laser. According to the LIBS rapid detection device for the boiler coal slag, the LIBS detection device is directly arranged above the electric material conveying belt, so that a special sampling and transferring device is omitted, the detection efficiency is greatly improved, and rapid and real-time detection of a material body is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of boiler coal cinder LIBS rapid detection device, in particular to a kind of boiler coal cinder LIBS rapid detection device applied to detection device field. BACKGROUND

[0002] Boiler coal cinder LIBS rapid detection device is a kind of equipment specially used to detect the composition of boiler coal cinder, usually including high-energy pulsed laser, can emit specific wavelength and energy laser beam. This laser beam is used to excite coal cinder sample, so that plasma is generated, and the excited state atoms and ions in the plasma will transition to low-energy state during cooling process, and emit specific wavelength photons. These photons constitute the emission spectrum of coal cinder, and the emission spectrum is collected by spectrum acquisition system and transmitted to spectrometer for analysis. By measuring the light intensity at different wavelengths, the presence and content of various elements in coal cinder can be determined.

[0003] Chinese patent CN216978834U specification discloses a kind of LIBS full-element detection device for coal quality detection, including support table body, protective shell, placement opening and connecting baffle, the utility model has the beneficial effect that, by air pump, air suction or inflation can be carried out, realize plasma technology, further improve the signal-to-noise ratio of non-metal element spectrum signal, improve the measurement accuracy.

[0004] Chinese patent CN220438162U specification discloses a kind of portable LIBS coal quality rapid detection device, belongs to coal quality detection technical field. The portable LIBS coal quality rapid detection device includes power supply module, for powering the entire system;The present application solves the technical problem that the prior art cannot test coal sample on site quickly.

[0005] Since most of the element tests in the current thermal power plant basically adopt automatic sampling and manual testing mode, this process adopts sampling, crushing, screening, blending, division, drying and other links, and basically can only achieve 2 to 3 times of in-furnace coal quality test analysis per day, and cannot achieve continuous online analysis, and has no guiding effect on subsequent boiler combustion link. Utility model content

[0006] For the above prior art, the technical problem to be solved by the utility model is that, since most of the element tests in the current thermal power plant basically adopt automatic sampling and manual testing mode, continuous online analysis cannot be achieved, and there is no guiding effect on subsequent boiler combustion link.

[0007] In order to solve the above problems, the utility model provides a kind of boiler coal cinder LIBS rapid detection device, including electric material conveying belt, the upper end of electric material conveying belt is provided with LIBS detection device, the front end middle part of LIBS detection device is fixedly connected with motor, the output of motor is fixedly connected with a pair of autorotation vertical pole, the end of autorotation vertical pole away from motor is fixedly connected with material taking U frame, the front end of LIBS detection device is fixedly connected with material conveying channel, material conveying channel is located in the back of motor, the front end of LIBS detection device is fixedly connected with spectrometer, spectrometer is located in the upside of material conveying channel, the lower end of spectrometer is fixedly connected with pulse laser.

[0008] In the above boiler coal cinder LIBS rapid detection device, the LIBS detection device is directly arranged above the electric material conveying belt, so that the special sampling transfer device is saved, the detection efficiency is greatly improved, and the rapid and real-time detection of the material body is realized.

[0009] As a further improvement of the present application, the pulse laser extends into the material conveying channel, and the upper end of the electric material conveying belt is filled with a plurality of material bodies.

[0010] As a further improvement of the present application, the material body penetrates into the material taking U frame, and the upper end of the material taking U frame is provided with a material falling opening.

[0011] As a further improvement of the present application, the lower end of the material conveying channel is fixedly connected with a material screening bottom plate, and the lower end of the material conveying channel is provided with an electric rotating shaft.

[0012] As another improvement of the present application, the output end of the electric rotating shaft is fixedly connected with a detection sample stage, and the detection sample stage is located directly below the pulse laser.

[0013] As a further improvement of the present application, the lower inner wall of the material conveying channel is fixedly connected with a material blocking side plate, and the material blocking side plate is located on the right side of the pulse laser.

[0014] As a further improvement of the present application, the inner end of the LIBS detection device is fixedly connected with a controller, and the controller is externally connected with a control terminal.

[0015] In summary, the LIBS detection device is directly arranged above the electric conveying belt, and a special sampling and transferring device is omitted, so that the detection efficiency is greatly improved, and rapid and real-time detection of the material body is realized. After the detection is completed, the electric rotating shaft drives the detection sample table to rotate, and the detection sample table is turned by 90 degrees, so that the material body on the detection sample table falls back to the surface of the electric conveying belt, the detection area on the detection sample table is emptied, and when the material body passes through the conveying channel, the smaller material body can be screened out and falls back to the electric conveying belt through the gap in the screening bottom plate, so that the small particles of the material body are prevented from accumulating above the detection sample table, and the detection effect of the pulse laser is not accurate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a side view of the electric conveying belt of the first embodiment of the present application;

[0017] Figure 2 is a conveying state diagram of the electric conveying belt of the first embodiment of the present application;

[0018] Figure 3 is a front view of the LIBS detection device of the first embodiment of the present application;

[0019] Figure 4 is an enlarged view of the spectrometer of the second embodiment of the present application;

[0020] Figure 5 is an enlarged view of the motor of the first embodiment of the present application;

[0021] Figure 6 is a partial cutaway enlarged view of the self-rotating vertical rod of the first embodiment of the present application; Figure 5

[0022] Figure 7 is a side view of the material taking U-shaped frame of the first embodiment of the present application.

[0023] Explanation of Reference Numerals in the Drawings:

[0024] 1, electric conveying belt; 2, LIBS detection device; 3, spectrometer; 4, pulse laser; 5, conveying channel; 6, motor; 7, self-rotating vertical rod; 8, material taking U-shaped frame; 9, electric rotating shaft; 10, detection sample table; 11, screening bottom plate; 12, material blocking side plate; 13, material falling opening; 14, material body. DETAILED DESCRIPTION

[0025] The two embodiments of the present application will be described in detail below with reference to the drawings.

[0026] First Embodiment:

[0027] Figures 1-6 ​A boiler coal cinder LIBS rapid detection device is shown, including an electric conveying belt 1, the upper end of the electric conveying belt 1 is provided with a LIBS detection device 2, the front end of the LIBS detection device 2 is fixedly connected with a motor 6, the output end of the motor 6 is fixedly connected with a pair of autorotation vertical rods 7, the end of the autorotation vertical rods 7 away from the motor 6 is fixedly connected with a material taking U-shaped frame 8, the front end of the LIBS detection device 2 is fixedly connected with a material conveying channel 5, the material conveying channel 5 is located at the rear side of the motor 6, the front end of the LIBS detection device 2 is fixedly connected with a spectrometer 3, the spectrometer 3 is located at the upper side of the material conveying channel 5, the lower end of the spectrometer 3 is fixedly connected with a pulse laser 4.

[0028] Figures 2-7 The pulse laser 4 extends into the material conveying channel 5, the upper end of the electric conveying belt 1 is filled with a plurality of material bodies 14, the material bodies 14 penetrate into the material taking U-shaped frame 8, the upper end of the material taking U-shaped frame 8 is provided with a material falling opening 13, the lower end of the material conveying channel 5 is fixedly connected with a material screening bottom plate 11, the lower end of the material conveying channel 5 is provided with an electric rotating shaft 9, the output end of the electric rotating shaft 9 is fixedly connected with a detection sample table 10, the detection sample table 10 is located directly below the pulse laser 4, the inner end of the LIBS detection device 2 is fixedly connected with a controller, and the controller is externally connected with a control terminal.

[0029] Figures 1-7The LIBS detection device 2 is arranged above the motorized conveying belt 1, the motor 6 drives the self-rotating vertical rod 7 to rotate above the motorized conveying belt 1, so that the opening position of the material taking U-shaped frame 8 corresponds to the conveying direction of the motorized conveying belt 1, the material taking U-shaped frame 8 is filled with the material body 14, and then is turned over by the motor 6 to the position above the conveying channel 5, so that the material body 14 falls through the material falling opening 13 outside the material taking U-shaped frame 8 into the conveying channel 5 and slides to the position directly below the pulse laser 4 for detection, the pulse laser 4 emits high-energy pulse laser to irradiate the sample surface, instantaneously generates plasma, the spectrometer 3 collects the spectrum signal, records the light intensity at different wavelengths, and immediately transmits the collected spectrum signal to the external control terminal for processing by using the data analysis system, the motorized conveying belt 1 continuously runs, and new material bodies 14 are continuously sent into the conveying channel 5 for detection, so that a continuous and efficient detection process is realized, the LIBS detection device 2 is directly arranged above the motorized conveying belt 1, a special sampling and transferring device is saved, the detection efficiency is greatly improved, rapid and real-time detection of the material body 14 is realized, and after the detection is completed, the motorized rotating shaft 9 drives the detection sample table 10 to rotate, so that the detection sample table 10 is turned over by 90 degrees, the material body 14 on the detection sample table 10 falls back to the surface of the motorized conveying belt 1, sample recycling is realized, the detection area on the surface of the detection sample table 10 is emptied, and when the material body 14 penetrates into the conveying channel 5, the small material bodies 14 can be screened out and fall back to the motorized conveying belt 1 through the gaps in the material screening bottom plate 11, so that the small-particle material bodies 14 are prevented from accumulating above the detection sample table 10 and causing the detection effect of the pulse laser 4 to be not accurate enough.

[0030] The second embodiment is as follows:

[0031] Figure 4 The LIBS rapid detection device for boiler coal cinder is characterized in that the inner lower wall of the conveying channel 5 is fixedly connected with the material blocking side plate 12, the material blocking side plate 12 is located on the right side of the pulse laser 4, and the material blocking side plate 12 is arranged on the side of the pulse laser 4, so that the material blocking side plate 12 can shield the material body 14 rolling and falling obliquely, and prevent the rolling and falling path of the material body 14 from bumping and colliding with the pulse laser 4, thereby effectively protecting the use efficiency of the pulse laser 4.

[0032] The above embodiments of the present application are not limited to the actual needs, and various changes made by those skilled in the art within the scope of knowledge will still fall within the protection scope of the present application.

Claims

1. A boiler coal cinder LIBS rapid detection device, characterized in that: Including the electric material conveying belt (1), the upper end of the electric material conveying belt (1) is provided with LIBS detection device (2), the front end middle part of the LIBS detection device (2) is fixedly connected with motor (6), the output end of the motor (6) is fixedly connected with a pair of autorotation vertical pole (7), the end away from the motor (6) of the autorotation vertical pole (7) is fixedly connected with the material taking U-shaped frame (8), the front end of the LIBS detection device (2) is fixedly connected with the material conveying channel (5), the material conveying channel (5) is located at the rear side of the motor (6), the front end of the LIBS detection device (2) is fixedly connected with spectrometer (3), the spectrometer (3) is located at the upper side of the material conveying channel (5), the lower end of the spectrometer (3) is fixedly connected with pulse laser (4).

2. The coal ash boiler LIBS rapid detection device according to claim 1, characterized in that: The pulse laser (4) extends into the material conveying channel (5), and the upper end of the electric material conveying belt (1) is filled with a plurality of material bodies (14).

3. The coal ash boiler LIBS rapid detection device according to claim 2, characterized in that: The material body (14) penetrates into the material taking U-shaped frame (8), and the upper end of the material taking U-shaped frame (8) is provided with a material falling opening (13).

4. The coal ash boiler LIBS rapid detection device according to claim 1, characterized in that: The lower end of the material conveying channel (5) is fixedly connected with a screening bottom plate (11), and the lower end of the material conveying channel (5) is provided with an electric rotating shaft (9).

5. The coal ash boiler LIBS rapid detection device according to claim 4, characterized in that: The output end of the electric rotating shaft (9) is fixedly connected with a detection sample table (10), and the detection sample table (10) is located directly below the pulse laser (4).

6. The coal ash boiler LIBS rapid detection device according to claim 1, characterized in that: The lower inner wall of the material conveying channel (5) is fixedly connected with a material blocking side plate (12), and the material blocking side plate (12) is located on the right side of the pulse laser (4).

7. The coal ash boiler LIBS rapid detection device according to claim 1, characterized in that: The inner end of the LIBS detection device (2) is fixedly connected with a controller, and the controller is externally connected with a control terminal.

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