Online ash content detection device based on laser radar accurate distance measurement

Abstract

The online ash content detection device comprises a mounting base, a mounting cover is fixed to the top of the mounting base through bolts, a conveyor is fixed to the inner wall of the mounting cover, and a detection mechanism is arranged at the top of the mounting cover. The detection mechanism comprises a laser radar detection assembly, a transparent protective cover A, an infrared spectrum detection assembly and a transparent protective cover B, a cleaning mechanism is arranged at the bottom of the detection mechanism, a heat dissipation mechanism is arranged at the top of the detection mechanism, an inflation mechanism is arranged on the outer side of the mounting base, and an adsorption mechanism is arranged on the outer side of the mounting cover. The detection mechanism is arranged to detect ash content of a coal sample, ash content detection operation under complex working conditions can be adapted, cleaning is carried out through a ray detection window of the cleaning mechanism, accuracy of detection operation is guaranteed, the inflation mechanism and the adsorption mechanism are matched to achieve a positive pressure circulation system of nitrogen, coal dust adhesion can be blocked, and an optical path can be interfered. The influence of dust on the detection operation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal ash detection technical field especially, relates to an online ash detection device based on laser radar precision ranging. BACKGROUND

[0002] In the industrial field such as coal, metallurgy, ash online detection technology is very important to raw coal quality control and combustion efficiency optimization. Traditional ash detection mainly relies on gamma ray or dual-energy X-ray technology, and the ash content is obtained by the attenuation characteristics of matter to the ray. Such method has obvious defects:

[0003] 1. Radioactive source is needed, which has safety risk and needs to be calibrated regularly;

[0004] 2. Dust accumulation leads to ray detection window pollution, which increases the measurement error;

[0005] 3. Only the average value of coal flow density can be obtained, and the coal flow thickness distribution cannot be dynamically analyzed, which leads to the inaccuracy of ash inversion model.

[0006] Although there are improved schemes in recent years, multi-sensor data fusion is insufficient, and the problem of complex working condition adaptability has not been solved. Therefore, we provide an online ash detection device based on laser radar precision ranging to solve the above problems. INVENTION CONTENTS

[0007] The utility model aims at overcoming the insufficient of prior art, provide an online ash detection device based on laser radar precision ranging.

[0008] The utility model solves its technical problem by the following technical scheme: including installation base, the top of installation base is fixed with installation cover through bolt, the inner wall of installation cover is fixed with conveyer, the top of installation cover is provided with detection mechanism, detection mechanism includes laser radar detection assembly, laser radar detection assembly is fixed on the top of installation cover through bolt, the bottom of laser radar detection assembly is fixed with transparent protective cover A, the top of installation cover near laser radar detection assembly is fixed with infrared spectrum detection assembly, the bottom of infrared spectrum detection assembly is fixed with transparent protective cover B, the bottom of detection mechanism is provided with cleaning mechanism, the top of detection mechanism is provided with heat dissipation mechanism, the outside of installation base is provided with inflation mechanism, the outside of installation cover is provided with adsorption mechanism.

[0009] As a further scheme of the utility model: the side of installation base is provided with control panel.

[0010] As a further embodiment of this utility model: the cleaning mechanism includes a mounting beam, which is fixed to the top of the mounting cover by bolts. A drive motor is fixed to the top of the mounting beam by bolts. A drive shaft is provided at the output end of the drive motor, and a scraper is fixed to the outside of the drive shaft.

[0011] As a further embodiment of this utility model: the heat dissipation mechanism includes a mounting bracket, which is fixed to the top of the mounting cover by bolts. A pair of cooling plates are fixed to the inner wall of the mounting bracket, and a cooling fan is fixed to the top of each pair of cooling plates by bolts.

[0012] As a further embodiment of this utility model: the inflation mechanism includes a storage box, which is fixed to the outside of the mounting base by bolts. An air pump mounting bracket is fixed to the top of the storage box by bolts. An air pump is fixed to the top of the air pump mounting bracket. A three-way branch pipe is fixed to the bottom of the air pump. Multiple connecting pipes are fixed to the end of the three-way branch pipe. Nitrogen storage cylinders are fixed to the bottom of each of the multiple connecting pipes. A gas delivery pipe is fixed to one side of the air pump. An exhaust groove is fixed to one end of the gas delivery pipe. The exhaust groove is fixedly connected to the mounting cover.

[0013] As a further improvement of this utility model: the outer side of the nitrogen storage cylinder is slidably connected with a clamp, and the clamp is fixedly connected to the storage box.

[0014] As a further embodiment of this utility model: the adsorption mechanism includes a support frame, which is fixed to the top of the mounting cover by bolts. A mounting box is fixed to the top of the support frame, a filter box is fixed to the top of the mounting box, a suction fan is fixed to the top of the filter box, a connecting pipe is fixed to the bottom of the suction fan, and the connecting pipe is connected to the filter box. An installation pipe is fixed to one side of the mounting box, a branch pipe A is fixed to one end of the installation pipe, a branch pipe is fixed to the end of the branch pipe A, and multiple adsorption tubes are fixed to the outside of the branch pipe. An adsorption cover is fixed to one end of each of the multiple adsorption tubes, and a collection box is slidably connected to the inner wall of the mounting box.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0016] 1. By setting up a detection mechanism and arranging multiple sets of detection mechanisms along the coal flow direction using linearly arranged lidar detection components, it can capture the surface morphology and thickness changes of the coal flow in real time and generate three-dimensional point cloud data simultaneously. The infrared spectroscopy detection component is nested on one side of the lidar detection component's transmitter end and is equipped with a near-infrared and mid-infrared dual-band spectrometer. By inverting the ash content characteristic peaks through the surface reflectance spectrum of the coal sample, it can fuse the data of the lidar detection component and the infrared spectroscopy detection component and adapt to ash content detection operations under complex working conditions.

[0017] 2. The cleaning mechanism removes dust adhering to the bottom surfaces of transparent protective covers A and B, preventing dust accumulation from contaminating the X-ray detection window and ensuring the accuracy of the detection operation of the lidar detection component and the infrared spectroscopy detection component;

[0018] 3. The heat dissipation mechanism heats the operating lidar detection component and infrared spectroscopy detection component, and the cooling fan heats the cooling plate, which can maintain the core components of the lidar detection component and infrared spectroscopy detection component at a constant temperature and suppress temperature drift error.

[0019] 4. Nitrogen gas is introduced into the mounting hood through the inflation mechanism, and the dust inside the mounting hood is adsorbed by the adsorption mechanism. The inflation mechanism and the adsorption mechanism work together to realize a positive pressure circulation system of nitrogen gas, which can block the coal dust from adhering and interfering with the optical path, avoid the dust from affecting the detection operation, and ensure the quality of coal ash content detection. Attached Figure Description

[0020] Figure 1 A schematic diagram of an isometric structure according to an embodiment of the present invention is shown;

[0021] Figure 2 A schematic diagram of an isometric sectional view of a structure according to an embodiment of the present invention is shown;

[0022] Figure 3 The present invention provides an embodiment of the present invention. Figure 2 Enlarged structural diagram of part A in the middle;

[0023] Figure 4 The present invention provides an embodiment of the present invention. Figure 2 Enlarged structural diagram of section B in the middle;

[0024] Figure 5 A schematic diagram of the front cross-sectional structure according to an embodiment of the present invention is shown;

[0025] Figure 6 The present invention provides an embodiment of the present invention. Figure 5 Enlarged structural diagram of section C in the middle;

[0026] Figure 7 The present invention provides an embodiment of the present invention. Figure 5 Enlarged structural diagram of section D in the middle;

[0027] Figure 8 A partial structural schematic diagram according to an embodiment of the present invention is shown.

[0028] Legend:

[0029] 100 Mounting base, 110 Control panel, 120 Mounting cover, 130 Conveyor, 210 LiDAR detection component, 220 Transparent protective cover A, 230 Infrared spectroscopy detection component, 240 Transparent protective cover B, 310 Mounting beam, 320 Drive motor, 321 Drive shaft, 330 Scraper, 410 Mounting bracket, 420 Cooling plate, 430 Cooling fan, 510 Storage box, 520 Air pump mounting bracket, 530 Air pump, 540 T-joint, 541 Connecting pipe, 550 Nitrogen storage cylinder, 551 Clamp, 560 Gas supply pipe, 570 Exhaust trough, 610 Support frame, 620 Mounting box, 630 Filter box, 640 Suction fan, 641 Connecting pipe, 650 Mounting pipe, 651 Branch pipe A, 660 Branch pipe, 661 Adsorption pipe, 670 Adsorption cover, 680 Collection box. Detailed Implementation

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Please see Figures 1-8This utility model provides a technical solution: It includes a mounting base 100, a control panel 110 on one side of the mounting base 100, a mounting cover 120 fixed to the top of the mounting base 100 by bolts, a conveyor 130 fixed to the inner wall of the mounting cover 120, a detection mechanism on the top of the mounting cover 120, the detection mechanism including a laser radar detection component 210 and a transparent protective cover A220, and an infrared spectral detection component 230 fixed to the top of the mounting cover 120 near the top of the laser radar detection component 210. A transparent protective cover B240 is fixed to the bottom of the mounting base 100. A cleaning mechanism is provided at the bottom of the detection mechanism, and a heat dissipation mechanism is provided at the top of the detection mechanism. An inflation mechanism is provided on the outside of the mounting base 100, and an adsorption mechanism is provided on the outside of the mounting cover 120. By setting up the detection mechanism and arranging multiple sets of detection mechanisms along the coal flow conveying direction using linearly arranged lidar detection components 210, it is possible to capture the surface morphology and thickness changes of the coal flow in real time and simultaneously generate three-dimensional point cloud data. An infrared spectral detection component 230 is nested on one side of the emitting end of the lidar detection component 210. Equipped with a near-infrared and mid-infrared dual-band spectrometer, the ash content characteristic peaks are retrieved by inverting the surface reflectance spectrum of the coal sample. This allows for data fusion between the lidar detection component 210 and the infrared spectroscopy detection component 230, adapting to complex ash content detection operations. During detection, a cleaning mechanism removes dust adhering to the bottom surfaces of the transparent protective covers A220 and B240, preventing dust accumulation and contamination of the X-ray detection window, thus ensuring the accuracy of the lidar detection component 210 and the infrared spectroscopy detection component 230. A heat dissipation mechanism is used to cool the operating lidar detection component 210. The infrared spectroscopy detection component 230 is cooled by a cooling fan 430, which cools the cooling plate 420. This maintains a constant temperature for the core components of the lidar detection component 210 and the infrared spectroscopy detection component 230, suppressing temperature drift errors. Nitrogen is introduced into the mounting cover 120 through an inflation mechanism, and dust inside the mounting cover 120 is adsorbed by an adsorption mechanism. The inflation and adsorption mechanisms work together to achieve a positive pressure circulation system for nitrogen, which can block coal dust from interfering with the optical path, prevent dust from affecting the detection operation, and ensure the quality of coal ash content detection.

[0034] Specifically, the cleaning mechanism includes a mounting beam 310, which is bolted to the top of the mounting cover 120. A drive motor 320 is bolted to the top of the mounting beam 310, and a drive shaft 321 is provided at the output end of the drive motor 320. A scraper 330 is fixed to the outside of the drive shaft 321. With the cleaning mechanism, during the detection operation, the drive motor 320 drives the drive shaft 321 to rotate, and the rotation of the drive shaft 321 drives the scraper 330 to rotate. The scraper 330 cleans the bottom surfaces of the transparent protective cover A220 and the transparent protective cover B240, removing dust adhering to the bottom surfaces of the transparent protective cover A220 and the transparent protective cover B240, avoiding dust accumulation that could contaminate the X-ray detection window, and ensuring the accuracy of the detection operation of the lidar detection component 210 and the infrared spectroscopy detection component 230.

[0035] Specifically, the heat dissipation mechanism includes a mounting bracket 410, which is fixed to the top of the mounting cover 120 by bolts. A pair of cooling plates 420 are fixed to the inner wall of the mounting bracket 410, and a cooling fan 430 is fixed to the top of each pair of cooling plates 420 by bolts. By setting up the heat dissipation mechanism, the cooling plates 420 dissipate heat from the operating lidar detection component 210 and infrared spectral detection component 230, and the cooling fans 430 dissipate heat from the cooling plates 420, thereby maintaining a constant temperature for the core components of the lidar detection component 210 and infrared spectral detection component 230 and suppressing temperature drift errors.

[0036] Specifically, the inflation mechanism includes a storage tank 510, which is bolted to the outside of the mounting base 100. A pump mounting bracket 520 is bolted to the top of the storage tank 510, and a pump 530 is fixed to the top of the pump mounting bracket 520. A three-way branch pipe 540 is fixed to the bottom of the pump 530, and multiple connecting pipes 541 are fixed to the end of the three-way branch pipe 540. Nitrogen storage cylinders 550 are fixed to the bottom of each of the multiple connecting pipes 541. A gas delivery pipe 560 is fixed to one side of the pump 530, and one end of the gas delivery pipe 560 is fixed to… The device includes an exhaust trough 570, which is fixedly connected to the mounting cover 120. A nitrogen storage cylinder 550 containing nitrogen is placed inside the storage box 510 via an inflation mechanism. A three-way connector 540 and a connecting pipe 541 are connected. An air pump 530 is started, extracting nitrogen from the nitrogen storage cylinder 550 through the three-way connector 540 and filling the mounting cover 120 through the gas supply pipe 560 and the exhaust trough 570. This, combined with an adsorption mechanism, creates a positive pressure circulation system for nitrogen. Furthermore, a cleaning mechanism cleans the detection window, preventing coal dust from interfering with the optical path.

[0037] Specifically, a clamp 551 is slidably connected to the outside of the nitrogen storage cylinder 550, and the clamp 551 is fixedly connected to the storage box 510; by setting the clamp 551 to securely support the nitrogen storage cylinder 550 during use, it is convenient to install and disassemble multiple nitrogen storage cylinders 550, and ensure the continuity of the filling operation.

[0038] Specifically, the adsorption mechanism includes a support frame 610, which is bolted to the top of the mounting cover 120. A mounting housing 620 is fixed to the top of the support frame 610, a filter box 630 is fixed to the top of the mounting housing 620, a suction fan 640 is fixed to the top of the filter box 630, and a connecting pipe 641 is fixed to the bottom of the suction fan 640, connecting pipe 641 connecting to the filter box 630. An mounting pipe 650 is fixed to one side of the mounting housing 620, a branch pipe A651 is fixed to one end of the mounting pipe 650, a branch pipe 660 is fixed to the end of the branch pipe A651, and multiple adsorption pipes 661 are fixed to the outer side of the branch pipe 660. One end of each adsorption tube 661 is fixed with an adsorption hood 670, and a collection box 680 is slidably connected to the inner wall of the mounting box 620. With the adsorption mechanism in place, during the testing operation, the suction fan 640 is activated. The suction fan 640 filters and draws air from the mounting box 620 through the connecting pipe 641 and the filter box 630, causing the mounting tube 650 to generate suction. The mounting tube 650, through branch pipes A651 and 660 and the adsorption tube 661, causes multiple adsorption hoods 670 to generate suction. The adsorption hoods 670 adsorb the dust inside the mounting hood 120, and the adsorbed dust is collected by the collection box 680, preventing dust from affecting the testing operation and ensuring the quality of coal ash content testing.

[0039] Working Principle: During use, the device is controlled via the control panel 110. Multiple detection mechanisms, arranged linearly along the coal flow direction using the lidar detection components 210, can capture real-time changes in the surface morphology and thickness of the coal flow, simultaneously generating three-dimensional point cloud data. The infrared spectral detection component 230 is nested within the emitter of the lidar detection component 210 and is equipped with a near-infrared and mid-infrared dual-band spectrometer. By inverting the ash content characteristic peaks through the surface reflectance spectrum of the coal sample, the data from the lidar detection component 210 and the infrared spectral detection component 230 can be fused, adapting to complex ash content detection operations. During operation, the drive motor 320 drives the drive shaft 321 to rotate, which in turn drives the scraper 330 to rotate. The scraper 330 cleans the bottom surfaces of the transparent protective covers A220 and B240, removing dust adhering to them and preventing dust accumulation that could contaminate the X-ray detection window. This ensures the accuracy of the LiDAR detection component 210 and the infrared spectroscopy detection component 230. The cooling plate 420 cools the operating LiDAR detection component 210 and the infrared spectroscopy detection component 230. Heat dissipation is achieved by using a cooling fan 430 to cool the cooling plate 420, maintaining a constant temperature for the core components of the lidar detection component 210 and the infrared spectroscopy detection component 230, and suppressing temperature drift errors. A nitrogen storage cylinder 550 containing nitrogen is placed inside the storage box 510. The three-way connector 540 and the connecting pipe 541 are connected. The air pump 530 is started, drawing nitrogen from the nitrogen storage cylinder 550 through the three-way connector 540 and filling the mounting cover 120 through the gas supply pipe 560 and the exhaust trough 570. This, combined with the adsorption mechanism, achieves a positive pressure circulation system for nitrogen. The system, in conjunction with the cleaning mechanism to clean the detection window, can block coal dust from interfering with the optical path. During the detection operation, the suction fan 640 is started. The suction fan 640 filters and sucks air from the mounting box 620 through the connecting pipe 641 and the filter box 630, causing the mounting pipe 650 to generate suction. The mounting pipe 650 generates suction through the branch pipes A651, branch pipe 660 and adsorption pipe 661, causing multiple adsorption hoods 670 to generate suction. The adsorption hoods 670 adsorb the dust inside the mounting hood 120, and the adsorbed dust is collected through the collection box 680 to avoid dust affecting the detection operation.

[0040] Although the present invention discloses embodiments and accompanying drawings, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and accompanying drawings.

Claims

1. An online ash content detection device based on precise ranging using lidar, characterized in that, The system includes a mounting base (100), a mounting cover (120) fixed to the top of the mounting base (100) by bolts, a conveyor (130) fixed to the inner wall of the mounting cover (120), a detection mechanism provided on the top of the mounting cover (120), the detection mechanism including a laser radar detection component (210), the laser radar detection component (210) fixed to the top of the mounting cover (120) by bolts, a transparent protective cover A (220) fixed to the bottom of the laser radar detection component (210), an infrared spectral detection component (230) fixed near the top of the mounting cover (120) close to the laser radar detection component (210), a transparent protective cover B (240) fixed to the bottom of the infrared spectral detection component (230), a cleaning mechanism provided at the bottom of the detection mechanism, a heat dissipation mechanism provided at the top of the detection mechanism, an inflation mechanism provided on the outside of the mounting base (100), and an adsorption mechanism provided on the outside of the mounting cover (120).

2. The online ash content detection device based on precise ranging using lidar according to claim 1, characterized in that, A control panel (110) is provided on one side of the mounting base (100).

3. The online ash content detection device based on precise ranging using lidar according to claim 1, characterized in that, The cleaning mechanism includes a mounting beam (310), which is fixed to the top of the mounting cover (120) by bolts. A drive motor (320) is fixed to the top of the mounting beam (310) by bolts. A drive shaft (321) is provided at the output end of the drive motor (320), and a scraper (330) is fixed to the outside of the drive shaft (321).

4. The online ash content detection device based on precise ranging using lidar according to claim 1, characterized in that, The heat dissipation mechanism includes a mounting bracket (410), which is fixed to the top of the mounting cover (120) by bolts. A pair of cooling plates (420) are fixed to the inner wall of the mounting bracket (410), and a cooling fan (430) is fixed to the top of each pair of cooling plates (420) by bolts.

5. The online ash content detection device based on precise ranging using lidar according to claim 1, characterized in that, The inflation mechanism includes a storage box (510), which is fixed to the outside of the mounting base (100) by bolts. A gas pump mounting bracket (520) is fixed to the top of the storage box (510) by bolts. A gas pump (530) is fixed to the top of the gas pump mounting bracket (520). A three-way branch pipe (540) is fixed to the bottom of the gas pump (530). Multiple connecting pipes (541) are fixed to the end of the three-way branch pipe (540). Nitrogen storage cylinders (550) are fixed to the bottom of the multiple connecting pipes (541). A gas delivery pipe (560) is fixed to one side of the gas pump (530). An exhaust groove (570) is fixed to one end of the gas delivery pipe (560). The exhaust groove (570) is fixedly connected to the mounting cover (120).

6. The online ash content detection device based on precise ranging using lidar according to claim 5, characterized in that, The nitrogen storage cylinder (550) is slidably connected to a clamp (551), which is fixedly connected to the storage box (510).

7. The online ash content detection device based on precise ranging using lidar according to claim 1, characterized in that, The adsorption mechanism includes a support frame (610), which is fixed to the top of the mounting cover (120) by bolts. A mounting box (620) is fixed to the top of the support frame (610), and a filter box (630) is fixed to the top of the mounting box (620). A suction fan (640) is fixed to the top of the filter box (630), and a connecting pipe (641) is fixed to the bottom of the suction fan (640). The connecting pipe (641) is connected to the filter box (630). 30) Connected to each other, an installation tube (650) is fixed on one side of the installation box (620), a branch tube A (651) is fixed at one end of the installation tube (650), a branch tube (660) is fixed at the end of the branch tube A (651), a plurality of adsorption tubes (661) are fixed on the outside of the branch tube (660), an adsorption cover (670) is fixed at one end of each of the plurality of adsorption tubes (661), and a collection box (680) is slidably connected to the inner wall of the installation box (620).

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