Intelligent laser coal quality analyzer

Abstract

The present invention discloses an intelligent laser coal quality analyzer, comprising a feeding component for feeding coal samples, a coal sample positioning component connected to the feeding component and used for placing the coal sample to be tested, a three-dimensional moving component for driving the coal sample positioning component to move to a desired position, a plasma gas shield component for covering the coal sample detection surface to enhance plasma stability, a laser analysis component for detecting and analyzing the coal sample, a discarding component for discarding the detected coal sample, and a controller; the controller is electrically connected to the feeding component, the coal sample positioning component, the three-dimensional moving component, the plasma gas shield component, the laser analysis component, and the discarding component, respectively. In the present invention, the feeding component is used for automatic feeding and automatic docking with the coal sample positioning component, and the discarding component automatically discards the material after the detection is completed, which greatly reduces the workload of personnel and avoids human errors.

Description

Technical Field

[0001] The invention relates to a coal quality analysis device in the field of online coal quality analysis, and in particular to an intelligent laser coal quality analyzer. Background Art

[0002] The existing laser coal quality analyzer requires manual removal of the coal sample placement platform to the outside of the equipment for loading, and then install it in the laser coal quality analyzer. There is no status detection of the coal sample in the coal sample placement platform. If the coal sample is missed or the coal sample placement platform is missed, the pulse laser can still work normally, which poses certain safety risks, and the entire process requires manual participation. In addition, after the coal sample detection is completed, the coal sample on the coal sample placement platform needs to be removed manually; during the detection process, if a fault occurs and the inspection door needs to be opened, the pulse laser can still work normally, which also poses certain safety risks.

[0003] Therefore, it is urgent to solve the above problems. Summary of the invention

[0004] Purpose of the invention: The purpose of the invention is to provide an intelligent laser coal quality analyzer which can automatically load and discard materials.

[0005] Technical solution: To achieve the above objectives, the present invention discloses an intelligent laser coal quality analyzer, comprising a feeding assembly for feeding coal samples, a coal sample positioning assembly connected to the feeding assembly and used for placing the coal sample to be tested, a three-dimensional moving assembly for driving the coal sample positioning assembly to move to a desired position, a plasma gas shield assembly for covering the coal sample detection surface and focusing the laser to prevent interference, a laser analysis assembly for detecting and analyzing the coal sample, a discarding assembly for discarding the detected coal sample, and a controller; the controller is respectively connected to the feeding assembly, the coal sample positioning assembly, the three-dimensional moving assembly, etc. The ion gas shield assembly, the laser analysis assembly and the discard assembly are electrically connected; the three-dimensional moving assembly drives the coal sample positioning assembly to move to the loading position; the coal sample is transported to the coal sample positioning assembly by the loading assembly; the three-dimensional moving assembly drives the coal sample positioning assembly to move to the detection position; the plasma gas shield assembly covers the detection surface of the coal sample; the three-dimensional moving assembly drives the coal sample positioning assembly to move along the XY plane; the laser analysis assembly generates plasma at multiple sampling points on the surface of the coal sample and analyzes optical signals; the three-dimensional moving assembly drives the coal sample positioning assembly to move to the discard position; the discard assembly pushes the coal sample out of the coal sample positioning assembly.

[0006] Among them, the feeding assembly includes a feeding chute arranged obliquely downward, a coal sample push block for receiving the coal sample sliding out of the feeding chute and being able to move back and forth to transport the coal sample to the coal sample positioning assembly, a limiting slide for guiding the movement of the coal sample push block, a coal sample screw rod for driving the coal sample push block to move back and forth, a coal sample stepping motor for driving the screw rod to rotate, and a photoelectric switch sensor for detecting whether there is a coal cake on the coal cake push block, and the photoelectric switch sensor transmits the detection information to the controller.

[0007] Preferably, the coal sample positioning assembly includes a coal sample upper positioning plate, a coal sample top pressure plate, a telescopic shaft connected to the coal sample top pressure plate and capable of driving the coal sample top pressure plate to extend and retract up and down, a connecting column connected to the telescopic shaft and capable of allowing the telescopic shaft to extend and retract up and down, a spring sleeved on the extending shaft with one end abutting against the lower surface of the coal sample top pressure plate and the other end abutting against the surface of the connecting column, and a coal sample in-place detection sensor for detecting whether the coal sample is in place, the coal sample in-place detection sensor transmits the detection information to the controller; the coal sample upper positioning plate and the coal sample top pressure plate are spaced apart in upper and lower directions, and the distance between the two is used to accommodate the coal sample to be detected.

[0008] Furthermore, the three-dimensional moving component includes a connecting plate connected to the coal sample positioning component, a Z-axis displacement drive motor component connected to the connecting plate and capable of driving the connecting plate to move along the Z-axis, a slide plate connected to the Z-axis displacement drive motor component, an X-axis displacement drive motor component connected to the slide plate and capable of driving the slide plate to move along the X-axis, and a Y-axis displacement drive motor component connected to the slide plate and capable of driving the slide plate to move along the Y-axis; the X-axis displacement drive motor component, the Y-axis displacement drive motor component and the Z-axis displacement drive motor component are electrically connected to the controller respectively.

[0009] Furthermore, the plasma gas shield assembly includes a plasma shield and a plasma shield cylinder that drives the plasma shield to move along the Z-axis direction, and the plasma shield cylinder is electrically connected to the controller.

[0010] Furthermore, the laser analysis component includes a pulsed laser, a spectroscopic system located on the light transmission path of the laser emitted by the pulsed laser, an optical focusing component located above the coal sample detection surface for focusing the laser to generate luminous plasma, an optical fiber probe located above the detection position for sensing the light information radiated by the luminous plasma, and a spectrometer for receiving the light information and generating a spectral response signal. The spectrometer transmits the spectral response signal to the controller for coal sample analysis.

[0011] Preferably, the discarded material assembly includes a discarded material push plate for the coal sample near the discarded material position, a discarded material cylinder for driving the discarded material push plate to move, a discarded material chute for facilitating the discarded coal sample to slide down, and a discarded material collection box connected to the end of the discarded material chute, and the discarded material cylinder is electrically connected to the controller.

[0012] Furthermore, the coal sample positioning assembly, three-dimensional moving assembly, plasma gas shield assembly, laser analysis assembly and discarded material assembly are all located inside the shell.

[0013] Furthermore, the shell is provided with an inspection door, and the inspection door is provided with a door position switch sensing sensor. The door position switch sensing sensor transmits the switch signal of the inspection door to the controller, and the controller controls the laser analysis component according to the switch signal.

[0014] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages:

[0015] (1) The present invention adopts a loading component to automatically load materials and automatically dock with a coal sample positioning component. After the detection is completed, the discarding component automatically discards the materials, which greatly reduces the workload of personnel and avoids human errors;

[0016] (2) The three-dimensional moving assembly of the present invention can transport the coal sample positioning assembly to the loading position, the detection position and the discarding position respectively, without manual adjustment, and the operation is convenient and fast, and random sampling and detection can be realized at any time;

[0017] (3) In the present invention, the coal sample positioning component, the three-dimensional moving component, the plasma gas shield component, the laser analysis component and the discarded material component are integrated and placed in the shell, so that the equipment occupies a small area and has low operating costs;

[0018] (4) The inspection door of the present invention is provided with a door position switch induction sensor. If the door position switch induction sensor detects that the maintenance door is opened, the controller controls the pulse laser to be turned off. The entire operation process has no hidden dangers and is highly safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0021] Figure 3 It is a partial schematic diagram of the connection between the feeding assembly and the coal sample positioning assembly in the present invention;

[0022] Figure 4 It is a cross-sectional schematic diagram of the feeding assembly in the present invention;

[0023] Figure 5 A top view of the feeding assembly of the present invention;

[0024] Figure 6 for Figure 4 A local enlarged schematic diagram in FIG.

[0025] Figure 7 It is a structural schematic diagram of the coal sample positioning assembly in the present invention;

[0026] Figure 8 It is a side view of the coal sample positioning assembly in the present invention;

[0027] Fig. 9 for Figure 8 A partial enlarged schematic diagram of

[0028] Fig.10 It is a schematic diagram of the structure of the three-dimensional mobile component in the present invention;

[0029] Fig.11 It is a structural schematic diagram of the laser analysis component in the present invention;

[0030] Fig.12 It is a schematic diagram of the principle of the laser analysis component in the present invention;

[0031] Fig.13 It is an enlarged schematic diagram of the discard component in the present invention. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides an intelligent laser coal quality analyzer, comprising a feeding component 1, a coal sample positioning component 2, a three-dimensional moving component 3, a plasma gas shield component 4, a laser analysis component 5, a discarded material component 6, a controller and a shell 7. The controller is electrically connected to the feeding component 1, the coal sample positioning component 2, the three-dimensional moving component 3, the plasma gas shield component 4, the laser analysis component 5 and the discarded material component 6 respectively. The coal sample positioning component, the three-dimensional moving component, the plasma gas shield component, the laser analysis component and the discarded material component are all located in the shell 7. An inspection door is provided on the shell, and a door position switch sensing sensor is provided on the inspection door. The door position switch sensing sensor transmits the switch signal of the inspection door to the controller, and the controller controls the laser analysis component according to the switch signal.

[0034] like Figure 4 , Figure 5 and Figure 6The feeding assembly 1 is used for automatic feeding of coal samples. The feeding assembly 1 includes a feeding slide 101, a coal sample push block 102, a limiting slide 103, a coal sample screw 104, a coal sample stepping motor 105 and a photoelectric switch sensor 106. The controller is electrically connected to the coal sample stepping motor 105 to control the action of the coal sample stepping motor. The feeding slide 101 is set obliquely downward. The coal sample is placed on the upper end of the feeding slide 101 and can slide down along the feeding slide under the action of its own weight. The coal sample push block 102 is threadedly connected to the coal sample screw 104 and can move back and forth along the coal sample screw 104. The coal sample stepping motor 105 is used to drive the coal sample screw 104 to rotate, thereby driving the coal sample push block 102 to move along the limiting slide 103. In the initial stage, the coal sample push block 102 moves to the tail end of the loading chute 101, and the coal sample enters the loading chute 101. Under the action of its own weight, the coal sample slides along the loading chute 101 to the coal sample push block 102, and the photoelectric switch sensor 106 detects the presence of coal cakes on the coal sample push block 102, and sends the detection information to the controller. The controller controls the coal sample stepper motor 105 to operate, and the coal sample stepper motor 105 drives the coal sample screw 104 to rotate. Driven by the coal sample screw, the coal sample push block 102 moves along the limiting slide groove to the coal sample positioning assembly.

[0035] like Figure 7 , Figure 8 and Fig. 9 As shown, the coal sample positioning assembly 2 is connected to the feeding assembly 1, and the coal sample to be detected is placed on the coal sample positioning assembly 2. The coal sample positioning assembly 2 includes a coal sample upper limit plate 201, a coal sample top pressure plate 202, a telescopic shaft 203, a connecting column 204, a spring 205 and a coal sample in place detection sensor 206. The coal sample in place detection sensor 206 is used to detect whether the coal sample is in place and transmit the detection information to the controller. The coal sample upper limit plate 201 and the coal sample top pressure plate 202 are arranged at intervals up and down, and the distance between the two is used to accommodate the coal sample to be detected. The coal sample upper limit plate 201 is provided with a limit groove that can guide the movement of the coal sample toward one side of the coal sample. The coal sample push block 102 is driven by the coal sample screw rod along the limit slide groove and along the limit groove of the coal sample upper limit plate 201 to move to the coal sample top pressure plate 202 of the coal sample positioning assembly. The telescopic shaft 203 is connected to the coal sample pressing plate 202. The telescopic shaft 203 is inserted into the connecting column 204 and can be extended and retracted back and forth along the connecting column 204. The telescopic range of the telescopic shaft 203 is adjusted and set by the bolt assembly 207 on the connecting column 204. The spring 205 is sleeved on the telescopic shaft 203, and one end of the spring 205 abuts against the lower surface of the coal sample pressing plate 202 and the other end abuts against the surface of the connecting column 204. When the coal sample in place detection sensor 206 detects a signal, the coal sample push block 102 returns to the initial position, and the coal sample pressing plate 202 presses the coal sample 8 under the elastic force of the spring 205, and then the three-dimensional moving assembly drives the coal sample positioning assembly to move to the detection position.

[0036] like Fig.10As shown, the three-dimensional moving assembly 3 is used to drive the coal sample positioning assembly to move to the required position. The three-dimensional moving assembly 3 includes a connecting plate 301, a Z-axis displacement driving motor assembly 302, a slide plate 303, an X-axis displacement driving motor assembly 304 and a Y-axis displacement driving motor assembly 305. The connecting plate 301 is fixedly connected to the connecting column 204 of the coal sample positioning assembly 2, and the Z-axis displacement driving motor assembly 302 is fixedly connected to the connecting plate 301 to drive the connecting plate to move along the Z axis. The slide plate 303 is connected to the Z-axis displacement driving motor assembly, the X-axis displacement driving motor assembly is connected to the slide plate 303 and drives the slide plate 303 to move along the X axis, and the Y-axis displacement driving motor assembly is connected to the slide plate 303 and drives the slide plate 303 to move along the Y axis. The X-axis displacement driving motor assembly 304, the Y-axis displacement driving motor assembly 305 and the Z-axis displacement driving motor assembly 302 are electrically connected to the controller respectively, and the controller controls the actions of the X-axis displacement driving motor assembly 304, the Y-axis displacement driving motor assembly 305 and the Z-axis displacement driving motor assembly 302 respectively.

[0037] The plasma gas shield assembly 4 is used to cover the coal sample detection surface for stabilizing plasma. The plasma gas shield assembly 4 includes a plasma shield 401 that can stabilize plasma and a plasma shield cylinder 402 that drives the plasma shield to move along the Z-axis direction. The plasma shield cylinder 402 is electrically connected to the controller, and the controller controls the movement of the plasma shield cylinder 402 so that the plasma shield 401 covers the detection surface of the coal sample.

[0038] like Fig.11 and Fig.12 As shown, the laser analysis component 5 includes a pulse laser 501, a spectroscopic system 502, an optical focusing component 503, a fiber optic probe 504 and a spectrometer 505. The pulse laser 501 emits laser, the spectroscopic system 502 is located on the light transmission path of the laser emitted by the pulse laser, the optical focusing component 503 is located above the coal sample detection surface and is used to focus the laser to generate luminous plasma, the fiber optic probe 504 is located above the detection position and is used to sense the light information radiated by the luminous plasma, the spectrometer 505 is used to receive the light information and generate a spectral response signal, and the spectrometer 505 transmits the spectral response signal to the controller, which analyzes the signal to obtain the coal sample analysis result.

[0039] like Fig.13 As shown, the discard component 6 is used to discard the tested coal samples. The discard component 6 includes a discard push plate 601 for the coal sample near the discard position, a discard cylinder 602 for driving the discard push plate to move, a discard chute 603 for facilitating the discarded coal sample to slide down, and a discard collection box 604 connected to the end of the discard chute. The discard cylinder is electrically connected to the controller.

[0040] Working process:

[0041] The docking equipment of the previous station delivers the coal sample 8 to the head end of the feeding chute of the feeding assembly 1 or the operator manually delivers the coal sample 8 to the head end of the feeding chute of the feeding assembly 1. In the initial stage, the coal sample push block 102 moves to the tail end of the feeding chute 101, and the coal sample enters the feeding chute 101. Under the action of its own weight, the coal sample slides along the feeding chute 101 to the coal sample push block 102. The laser photoelectric switch sensor 106 detects the presence of coal cakes on the coal sample push block 102 and sends the detection information to the controller. The controller controls the coal sample step The stepping motor 105 is in motion, and the coal sample stepping motor 105 drives the coal sample screw 104 to rotate. Driven by the coal sample screw, the coal sample push block 102 moves along the limit slide groove and along the limit groove of the coal sample upper limit plate 201 to the coal sample top pressure plate 202 of the coal sample positioning assembly; when the coal sample in-place detection sensor 206 detects a signal, the coal sample push block 102 returns to the initial position, and the coal sample top pressure plate 202 presses the coal sample 8 under the elastic force of the spring 205, and then the three-dimensional moving assembly drives the coal sample positioning assembly to move to the detection position. The controller controls the movement of the plasma shield cylinder 402 so that the plasma shield 401 covers the detection surface of the coal sample; the pulse laser 501 emits a laser, and the three-dimensional moving component drives the coal sample 8 on the coal sample positioning component 2 to move on the XY plane, so that the pulse laser 501 outputs a laser that is focused on the surface of the coal sample through the spectroscopic system 502 and the optical focusing component 503 to form a plurality of matrix points, each of which is a sampling point, and luminous plasma is generated on the surface of the coal sample. In this process, the optical fiber probe 504 on the upper side transmits the optical information to the sensitive spectrometer 505 for detection. The spectrometer 505 transmits the spectral response signal to the controller and analyzes the radiation spectrum to obtain the type and concentration of the elements in the material, wherein the type is determined by the wavelength of the radiation spectrum, and the concentration is determined by the intensity of the peak value of the radiation spectrum. After the inspection is completed, the three-dimensional moving component 3 drives the coal sample positioning component 2 to the discard position, and then the controller controls the discard cylinder 602 to move. The discard cylinder 602 pushes the inspected coal sample 8 into the discard channel 603 and slides into the discard collection box 604. Finally, each component returns to its original position and the process is repeated when the next coal sample is placed.

Claims

1. An intelligent laser coal quality analyzer, characterized in that: The invention comprises a feeding assembly (1) for feeding coal cakes, a coal sample positioning assembly (2) connected to the feeding assembly and used for placing the coal cakes to be tested, a three-dimensional moving assembly (3) for driving the coal sample positioning assembly to move to a desired position, a plasma gas shield assembly (4) for covering the coal cake detection surface and enhancing the plasma stability, a laser analysis assembly (5) for detecting and analyzing the coal cakes, a discarding assembly (6) for discarding the detected coal cakes, and a controller, wherein the coal sample positioning assembly, the three-dimensional moving assembly, the plasma gas shield assembly, the laser analysis assembly and the discarding assembly are all located in a housing (7); the controller is respectively connected to the feeding assembly (1), the coal sample positioning assembly and the three-dimensional moving assembly. The three-dimensional moving component (2), the three-dimensional moving component (3), the plasma gas shield component (4), the laser analysis component (5) and the discarded material component (6) are electrically connected, the three-dimensional moving component (3) drives the coal sample positioning component (2) to move to the loading position, the coal cake is transported from the loading component (1) to the coal sample positioning component (2), the three-dimensional moving component (3) drives the coal sample positioning component (2) to move to the detection position, the plasma gas shield component (4) covers the detection surface of the coal sample, the three-dimensional moving component (3) drives the coal sample positioning component (2) to move along the XY plane, the laser analysis component (5) generates plasma at multiple sampling points on the surface of the coal cake and analyzes the optical signal, and the three-dimensional moving component (3) drives The coal sample positioning component (2) moves to the discarding position, and the discarding component (6) pushes the coal cake out of the coal sample positioning component; the feeding component (1) comprises a feeding slideway (101) arranged obliquely downward, a coal sample pushing block (102) for receiving the coal cakes sliding out of the feeding slideway and being able to move back and forth to transport the coal cakes to the coal sample positioning component, a limiting slideway (103) for guiding the movement of the coal sample pushing block, a coal sample screw rod (104) for driving the coal sample pushing block to move back and forth, a coal sample stepping motor (105) for driving the screw rod to rotate, and a photoelectric switch sensor (106) for detecting whether the coal cake pushing block has coal cakes, and the photoelectric switch sensor (106) transmits the detection information to the coal sample pushing block. The coal sample positioning assembly (2) comprises a coal sample upper positioning plate (201), a coal sample top pressure plate (202), a telescopic shaft (203) connected to the coal sample top pressure plate and capable of driving the coal sample top pressure plate to extend and retract upward and downward, a connecting column (204) connected to the telescopic shaft and capable of allowing the telescopic shaft to extend and retract upward and downward, a spring (205) sleeved on the extending shaft, one end of which abuts against the lower surface of the coal sample top pressure plate and the other end of which abuts against the surface of the connecting column, and a coal sample in-place detection sensor (206) for detecting whether the coal cake is in place, and the coal sample in-place detection sensor transmits the detection information to the controller; the coal sample upper positioning plate and the coal sample top pressure plate are arranged at an interval in the upper and lower directions, and the distance between the two is used to accommodate the coal cake to be detected.

2. The intelligent laser coal quality analyzer according to claim 1 is characterized in that: The three-dimensional moving component (3) comprises a connecting plate (301) connected to the coal sample positioning component, a Z-axis displacement driving motor component (302) connected to the connecting plate and capable of driving the connecting plate to move along the Z axis, a sliding plate (303) connected to the Z-axis displacement driving motor component, an X-axis displacement driving motor component (304) connected to the sliding plate and capable of driving the sliding plate to move along the X axis, and a Y-axis displacement driving motor component (305) connected to the sliding plate and capable of driving the sliding plate to move along the Y axis; the X-axis displacement driving motor component (304), the Y-axis displacement driving motor component (305) and the Z-axis displacement driving motor component (302) are electrically connected to a controller, respectively.

3. The intelligent laser coal quality analyzer according to claim 1 is characterized in that: The plasma gas shield assembly (4) comprises a plasma shield (401) and a plasma shield cylinder (402) for driving the plasma shield to move along the Z-axis direction; the plasma shield cylinder (402) is electrically connected to a controller.

4. The intelligent laser coal quality analyzer according to claim 1 is characterized in that: The laser analysis component (5) comprises a pulse laser (501), a spectroscopic system (502) located on the light transmission path of the laser light emitted by the pulse laser, an optical focusing component (503) located above the coal sample detection surface and used to focus the laser to generate luminous plasma, an optical fiber probe (504) located above the detection position and used to sense the light information radiated by the luminous plasma, and a spectrometer (505) used to receive the light information and generate a spectral response signal, and the spectrometer (505) transmits the spectral response signal to the controller for coal sample analysis.

5. The intelligent laser coal quality analyzer according to claim 1 is characterized in that: The discard assembly (6) comprises a discard push plate (601) for the coal sample near the discard position, a discard cylinder (602) for driving the discard push plate to move, a discard slide (603) for facilitating the discarded coal sample to slide down, and a discard collection box (604) connected to the end of the discard slide, and the discard cylinder is electrically connected to the controller.

6. The intelligent laser coal quality analyzer according to claim 1, characterized in that: The shell is provided with an inspection door, and the inspection door is provided with a door position switch induction sensor. The door position switch induction sensor transmits the switch signal of the inspection door to the controller, and the controller controls the laser analysis component according to the switch signal.

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