CN113569346A - Mill lining plate design method based on 3D scanning and point cloud post-processing analysis - Google Patents
Mill lining plate design method based on 3D scanning and point cloud post-processing analysis Download PDFInfo
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- CN113569346A CN113569346A CN202110625131.9A CN202110625131A CN113569346A CN 113569346 A CN113569346 A CN 113569346A CN 202110625131 A CN202110625131 A CN 202110625131A CN 113569346 A CN113569346 A CN 113569346A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
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- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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Abstract
The invention provides a mill lining board design method based on 3D scanning and point cloud post-processing analysis, which utilizes a 3D scanning technology to safely and efficiently acquire the worn outline shape data of a lining board, introduces post-processing analysis software for analysis and processing, can quickly obtain comprehensive and accurate wear data, makes more accurate life prediction, can calculate the wear rate curve of the lining board by arranging the change data of the lining board outline, reversely deduces the design size required by the target life according to the wear rate curve, more accurately adjusts the design size of the lining board of each bin, realizes the multiple matching of the life between the lining boards of each bin and between different positions of the same lining board, reduces waste and improves the economic benefit of a user.
Description
Technical Field
The invention relates to the field of large-scale mining autogenous mills and semi-autogenous mill equipment, in particular to a mill liner plate design method based on 3D scanning and point cloud post-processing analysis.
Background
The mining grinder has the advantages of high yield, energy conservation, consumption reduction, high efficiency and the like, is core equipment for grinding ores, takes a grinder lining plate as a key part of the grinder, and has large consumption, large spare part order quantity and wide market prospect because the grinder is a loss part. And the optimization of the liner plate structure is beneficial to improving the grinding efficiency of the grinding machine, increasing the yield and reducing the metal consumption. Therefore, the optimized design of the lining plate structure is developed, the lining plate structure which is suitable for different working conditions and different types of mills and has excellent performance is developed, the service life and the performance of the whole machine are further improved, and the problem which needs to be solved in the lining plate field is met. However, the optimal design of the liner plate requires wear data of the liner plate during the full life cycle as a theoretical basis.
At present, the lining plate abrasion data acquisition and structure optimization of lining plates of large autogenous mills and semi-autogenous mills mainly have the following problems: 1. the grinding machine is used as a device for long-term continuous operation, and the wear condition of the lining plate can be inferred only by methods such as visual inspection, simple measurement and the like when the grinding machine is stopped or by experiences such as the yield of the grinding machine, the change of the operating power, the service life of the previous lining plate and the like under the condition of stable process conditions. These approaches, while simple to implement, have occasionally been associated with liner plate wear-through and mill critical components. 2. In the aspect of measuring the thickness of the lining plate, the measuring method of the graduated scale such as a measuring tape is simple and easy to implement, data can be directly read and recorded, but the measuring method can only measure the worn edge of the lining plate or the depth of a bolt hole of the lining plate, but cannot measure the thickness of the middle part of the curved surface of the worn lining plate. If an ultrasonic thickness gauge is used, although the thickness of any point on the surface of the worn lining plate can be measured, the reflection of ultrasonic waves causes large measurement error of points on an irregular curved surface, and even accurate size cannot be measured. 3. In the aspect of measuring the section shape of the lining plate, a shape taking device is generally used, the shape taking device is a device in which a plurality of pins are distributed on a long steel bar, the section shape can be known by taking points for measuring the special-shaped section shape, recording the positions of measuring points and connecting the lines. The tool is convenient for indirectly measuring the thickness and the appearance of the substrate, but the relative position of the contact pin needs to be recorded in time after each measurement; in addition, the wear forms of the lining plates in the mill are different, the same reference cannot be adopted in each measurement, and the calculation error is large; when the number of measurements is large, it also takes a long time. 4. At present, the measurement means for the lining plate is mainly carried out after the lining plate is detached after the whole life cycle of the lining plate is finished. During the measurement of the lining plate in the using process, limited lining plate abrasion two-dimensional sample data can be obtained only by entering the interior of the grinding machine by using the downtime and using a simple contact type measurement method. The measuring personnel have safety risks in the operation process, and in order to obtain more comprehensive data, the measuring workload needs to be increased, so that the shutdown time is prolonged, and the operation rate of the production line is influenced. 5. Because the wear data of the lining plate is difficult to acquire, and the acquired data is kept in a two-dimensional sample stage, the optimization design of the lining plate of the current large-scale mill is still based on experience, the accurate determination of the size of the lining plate and the service life matching of the lining plates in each bin can not be carried out according to the requirement of the target service life, and the waste of the lining plate is caused.
Disclosure of Invention
The invention aims to provide a mill lining plate design method based on 3D scanning and point cloud post-processing analysis.
In order to achieve the purpose, the invention adopts the technical scheme that: the method for designing the mill lining plate based on 3D scanning and point cloud post-processing analysis comprises the following steps:
step 1), placing a laser three-dimensional scanner in a mill cylinder when the mill is stopped and overhauled, acquiring point cloud data of a whole set of lining plates arranged on the inner wall of the mill, and establishing a point cloud model;
step 2), after the established point cloud model is imported into a computer, comparing and processing the point cloud model with an initial geometric model of the whole set of lining plate to obtain wear information of the whole set of lining plate;
step 3), repeating the step 1) and the step 2) in the service cycle of the whole set of lining plate, measuring the wear information of the whole set of lining plate at different positions for multiple times, and obtaining the wear rate of the whole set of lining plate at different positions by tracking and comparing the residual thickness change conditions of the whole set of lining plate at different positions;
step 4), arranging the wear rates of the lining plates of the bin positions and different positions of the same lining plate at different stages to respectively obtain wear rule curves;
and step 5), reversely pushing the bin lining plates and different positions of the same lining plate to reach the design size required by the target service life according to the wear rule curve, and realizing the multiple matching of the service life between the bin lining plates and between different positions of the same lining plate.
Further, in the step 2), the wear information of the lining plate is obtained by using a color cloud picture, but not limited to.
Further, the color cloud picture mode comprises the following steps: and unfolding the established point cloud model of the lining plate into plane distribution, quickly finding the short service life plate of the whole set of lining plate by adjusting the chromatogram, quickly calculating the residual thickness of the corresponding point position by using a 3D marking function, and obtaining detailed section shape data by adopting a local section aiming at the short service life plate needing to be analyzed emphatically.
Further, the abscissa of the wear rule curve is the treatment amount, and the ordinate is the residual thickness.
Furthermore, the service lives of different positions of the same lining plate are the same, and the service lives of the lining plates in the bin positions are the same or are multiple relations.
Compared with the prior art, the invention has the beneficial effects that: the invention utilizes the 3D scanning technology to safely and efficiently collect the worn outline shape data of the lining plate, introduces the data into the post-processing analysis software for analysis and processing, can quickly obtain comprehensive and accurate wear data, makes more accurate life prediction, can calculate the wear rate curve of the lining plate by arranging the change data of the lining plate outline, reversely deduces the design size required by the target life according to the wear rate curve, more accurately adjusts the design size of the lining plate of each bin, realizes the multiple matching of the life between the lining plates of each bin and between different positions of the same lining plate, reduces waste and improves the economic benefit of users.
Drawings
FIG. 1 is a view of a field measurement with a laser three-dimensional scanner inside the mill cylinder;
FIG. 2 is a diagram of a point cloud model obtained and created after scanning by a laser three-dimensional scanner;
FIG. 3 is a graph of drum liner scanning point cloud wear data;
FIG. 4 is a partial cross-sectional view of a life shortening plate requiring significant analysis in the cartridge liner;
FIG. 5 is a graph of end liner scanning point cloud wear data;
FIG. 6 is a partial cross-sectional view of a life shortening plate requiring significant analysis in the end liner;
FIG. 7 is a schematic representation of the change in cross-sectional profile of the liner plate over a period of use;
FIG. 8 is a graph showing the wear rate among the lining plates of the bin in the embodiment;
FIG. 9 is a schematic diagram showing the design dimensions of different parts of the liner plate of the cylinder body adjusted by the method of the present invention in the embodiment;
FIG. 10 is a schematic diagram of the design dimensions of the whole set of lining boards for adjusting different bin positions by the method of the present invention in the embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.
A mill liner plate design method based on 3D scanning and point cloud post-processing analysis comprises a 3D scanning technology and a point cloud post-processing analysis technology, wherein the 3D scanning technology comprises the following steps: when the mill is stopped and overhauled, a laser three-dimensional scanner is placed inside a mill cylinder, as shown in fig. 1, a lens of the laser three-dimensional scanner continuously emits laser to each position of the inner wall of the cylinder, meanwhile, the scanner continuously changes scanning postures in the horizontal direction and the vertical direction, the distance between the surface of a whole set of lining plates installed on the inner wall of the mill and the three-dimensional scanner is calculated by receiving the phase change of the reflected laser, finally, a series of point cloud data with certain resolution is obtained, the outline of the currently worn lining plate inside the mill is reflected, and then a point cloud model is established, as shown in fig. 2.
The point cloud post-processing analysis technology comprises the following steps:
1. after the obtained point cloud model is imported into a computer, the point cloud model is compared and processed with an initial geometric model of the whole set of lining plate, and information such as lining plate abrasion is comprehensively known in the embodiment through a color cloud picture mode. And then spreading the collected point clouds of the lining boards into plane distribution, rapidly finding the life-span short boards of the whole set of lining boards by adjusting the color spectrum, as shown in fig. 3 and 5, respectively scanning point cloud abrasion data graphs for the lining boards of the cylinder body and the end lining boards, rapidly calculating the residual thickness of corresponding point positions by using a 3D marking function, and obtaining detailed cross-sectional shape data by adopting local cross sections aiming at the life-span short boards needing to be analyzed in an emphasized mode, as shown in fig. 4 and 6, respectively obtaining the local cross-sectional graphs of the life-span short boards needing to be analyzed in the lining boards of the cylinder body and the end lining boards.
2. The change condition of the residual thickness of the lining plate during a plurality of measurements at a certain position can be tracked and compared by carrying out a plurality of measurements in the service cycle of the whole set of lining plate, the continuous change reflects the wear rate of the lining plate in the period, and can be used for more accurately predicting the residual service time or the residual ore processing amount of the lining plate, and fig. 7 is a schematic diagram of the change of the cross section profile of the lining plate in one service cycle.
3. And respectively obtaining the wear rule curves of the lining plates at the bin positions in different stages and the wear rates of the lining plates at different positions.
4. The design size required by the target service life is reversely deduced according to the wear rule curve, so that the multiple matching of the service life among the bin liners and among different positions of the same liner is realized, the waste is reduced, and the economic benefit of a user is improved. For example, as shown in fig. 8, a graph of wear rate between lining plates in each bin is shown, the whole life cycle of the lining plates is divided into four wear stages, i.e., one, two, three and four wear stages, according to the wear rate of the lining plates, and V1, V2, V3 and V4 are the wear rates of the lining plates in each stage, respectively, and the wear rates are in mm/ten thousand tons.
In the formula, C is the lifting strip thickness that each stage wearing and tearing fall, the unit: mm; d is the treatment capacity of the lining plate in each stage, and the unit is as follows: ten thousand tons.
A1, A2, A3 and A4 are the proportion of the wear stages to the entire life cycle of the liner plate.
Where L1 is the effective thickness of the liner, L1= design size-failure size, in units: mm; e is the target throughput, unit: ten thousand tons.
The design sizes of different parts of the cylinder liner plate are adjusted according to the calculation result to realize the service life consistency of the different parts of the cylinder liner plate, as shown in fig. 9, the thickness of one end of the cylinder liner plate close to the feeding side is 280mm, the thickness of one end close to the discharging side is 320-320 mm, and the thickness of the middle part between the two is 280-320 mm.
Further, based on the method, the design sizes of different bin positions of the whole set of lining plate are adjusted, as shown in fig. 10, the lining plate at the discharging end is designed according to the thickness corresponding to the handling capacity of 1200 ten thousand tons, the lining plate at the feeding end is designed according to the thickness corresponding to the handling capacity of 400 ten thousand tons, and the lining plate at the barrel body and the grid plate are designed according to the thickness corresponding to the handling capacity of 400 ten thousand tons, so that the service life multiple relation of each bin position is realized, the times of stopping and replacing the lining plate can be reduced, the operation rate is improved, the waste of the lining plate is reduced, and the economic benefit is improved.
The invention utilizes the 3D scanning technology to safely and efficiently collect the worn outline shape data of the lining plate, introduces the data into the post-processing analysis software for analysis and processing, can quickly obtain comprehensive and accurate wear data, makes more accurate life prediction, can calculate the wear rate curve of the lining plate by arranging the change data of the lining plate outline, reversely deduces the design size required by the target life according to the wear rate curve, more accurately adjusts the design size of the lining plate of each bin, realizes the multiple matching of the life between the lining plates of each bin and between different positions of the same lining plate, reduces waste and improves the economic benefit of users.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The method for designing the mill lining plate based on 3D scanning and point cloud post-processing analysis is characterized by comprising the following steps of:
step 1), placing a laser three-dimensional scanner in a mill cylinder when the mill is stopped and overhauled, acquiring point cloud data of a whole set of lining plates arranged on the inner wall of the mill, and establishing a point cloud model;
step 2), after the established point cloud model is imported into a computer, comparing and processing the point cloud model with an initial geometric model of the whole set of lining plate to obtain wear information of the whole set of lining plate;
step 3), repeating the step 1) and the step 2) in the service cycle of the whole set of lining plate, measuring the wear information of the whole set of lining plate at different positions for multiple times, and obtaining the wear rate of the whole set of lining plate at different positions by tracking and comparing the residual thickness change conditions of the whole set of lining plate at different positions;
step 4), arranging the wear rates of the lining plates of the bin positions and different positions of the same lining plate at different stages to respectively obtain wear rule curves;
and step 5), reversely pushing the bin lining plates and different positions of the same lining plate to reach the design size required by the target service life according to the wear rule curve, and realizing the multiple matching of the service life between the bin lining plates and between different positions of the same lining plate.
2. The method for designing a lining board of a mill based on 3D scanning and point cloud post-processing analysis as claimed in claim 1, wherein in the step 2), the abrasion information of the lining board is obtained by using a color cloud picture.
3. The method for designing a mill lining plate based on 3D scanning and point cloud post-processing analysis as claimed in claim 2, wherein the color cloud pattern comprises the following steps: and unfolding the established point cloud model of the lining plate into plane distribution, quickly finding the short service life plate of the whole set of lining plate by adjusting the chromatogram, quickly calculating the residual thickness of the corresponding point position by using a 3D marking function, and obtaining detailed section shape data by adopting a local section aiming at the short service life plate needing to be analyzed emphatically.
4. The method of claim 1, wherein the wear leveling curve has a throughput on the abscissa and a residual thickness on the ordinate.
5. The method of claim 1, wherein the service life of different positions of the same lining plate is the same, and the service life of the lining plates in different positions is the same or is a multiple of the service life of the lining plates in different positions.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117380349A (en) * | 2023-12-07 | 2024-01-12 | 沈阳智谷科技有限公司 | Method for online measuring abrasion loss of lining plate of mill |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060052978A1 (en) * | 2004-06-26 | 2006-03-09 | Hopkins Daniel N | Wall thickness data analyzer and method |
| CN102853799A (en) * | 2012-08-27 | 2013-01-02 | 长沙学院 | Detection device of abraded shape and mass loss and detection method thereof |
| CN107067469A (en) * | 2016-12-27 | 2017-08-18 | 中国人民解放军装甲兵工程学院 | The system for obtaining injuring part defect model |
| CN108603491A (en) * | 2016-02-12 | 2018-09-28 | 维斯塔斯风力系统集团公司 | It is related to controlling the improvement of bearing wear |
| CN109731635A (en) * | 2019-03-05 | 2019-05-10 | 郑州机械研究所有限公司 | A wear-resistant squeeze roller |
| CN209631313U (en) * | 2019-03-05 | 2019-11-15 | 郑州机械研究所有限公司 | A wear-resistant extrusion roller |
| WO2020261394A1 (en) * | 2019-06-25 | 2020-12-30 | 日鉄テクノロジー株式会社 | Method for estimating wear amount of wear member of charpy impact tester, method for estimating life of wear member, method for estimating required characteristics of wear member, and wear member of charpy impact tester |
| CN112533703A (en) * | 2018-05-31 | 2021-03-19 | 美卓（瑞典）公司 | System and method for analyzing surfaces subject to wear |
-
2021
- 2021-06-04 CN CN202110625131.9A patent/CN113569346A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060052978A1 (en) * | 2004-06-26 | 2006-03-09 | Hopkins Daniel N | Wall thickness data analyzer and method |
| CN102853799A (en) * | 2012-08-27 | 2013-01-02 | 长沙学院 | Detection device of abraded shape and mass loss and detection method thereof |
| CN108603491A (en) * | 2016-02-12 | 2018-09-28 | 维斯塔斯风力系统集团公司 | It is related to controlling the improvement of bearing wear |
| CN107067469A (en) * | 2016-12-27 | 2017-08-18 | 中国人民解放军装甲兵工程学院 | The system for obtaining injuring part defect model |
| CN112533703A (en) * | 2018-05-31 | 2021-03-19 | 美卓（瑞典）公司 | System and method for analyzing surfaces subject to wear |
| CN109731635A (en) * | 2019-03-05 | 2019-05-10 | 郑州机械研究所有限公司 | A wear-resistant squeeze roller |
| CN209631313U (en) * | 2019-03-05 | 2019-11-15 | 郑州机械研究所有限公司 | A wear-resistant extrusion roller |
| WO2020261394A1 (en) * | 2019-06-25 | 2020-12-30 | 日鉄テクノロジー株式会社 | Method for estimating wear amount of wear member of charpy impact tester, method for estimating life of wear member, method for estimating required characteristics of wear member, and wear member of charpy impact tester |
Non-Patent Citations (1)
| Title |
|---|
| 冯浩源等: ""基于Geomagic软件的大型矿用磨机衬板优化设计方法"", 《矿山机械》, vol. 47, no. 2019, 10 April 2019 (2019-04-10), pages 19 - 23 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117380349A (en) * | 2023-12-07 | 2024-01-12 | 沈阳智谷科技有限公司 | Method for online measuring abrasion loss of lining plate of mill |
| CN117380349B (en) * | 2023-12-07 | 2024-02-06 | 沈阳智谷科技有限公司 | Method for online measuring abrasion loss of lining plate of mill |
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