WO2013067651A1 - Sistema y método de monitoreo visual directo para sensar el interior de un molino rotatorio de minerales - Google Patents
Sistema y método de monitoreo visual directo para sensar el interior de un molino rotatorio de minerales Download PDFInfo
- Publication number
- WO2013067651A1 WO2013067651A1 PCT/CL2011/000069 CL2011000069W WO2013067651A1 WO 2013067651 A1 WO2013067651 A1 WO 2013067651A1 CL 2011000069 W CL2011000069 W CL 2011000069W WO 2013067651 A1 WO2013067651 A1 WO 2013067651A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mill
- interior
- main control
- monitoring system
- control unit
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 63
- 230000000007 visual effect Effects 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims description 22
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims description 10
- 239000011707 mineral Substances 0.000 title claims description 10
- 230000001133 acceleration Effects 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000001228 spectrum Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 4
- 238000004378 air conditioning Methods 0.000 claims description 3
- 238000010073 coating (rubber) Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 230000003750 conditioning effect Effects 0.000 claims description 2
- 229910052732 germanium Inorganic materials 0.000 claims description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 2
- 238000001429 visible spectrum Methods 0.000 claims description 2
- 238000005286 illumination Methods 0.000 claims 1
- 238000011017 operating method Methods 0.000 abstract 1
- 238000000227 grinding Methods 0.000 description 9
- 238000000576 coating method Methods 0.000 description 3
- 238000001931 thermography Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 208000002177 Cataract Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/1805—Monitoring devices for tumbling mills
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/183—Feeding or discharging devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2210/00—Codes relating to different types of disintegrating devices
- B02C2210/01—Indication of wear on beaters, knives, rollers, anvils, linings and the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
Definitions
- the present invention relates to an online monitoring system and method for obtaining direct data within a rotary mill of minerals or the like, by direct visualization of the load and the inner lining of said mill. More specifically a system and method of direct visual monitoring of the inside of a mill.
- Mill such as a SAG mill.
- From L. Cerda et al. It describes a grinding body that is incorporated into the load of a SAG mill and that inside it has a sensor, a microprocessor, a receiver and a transmitter, which captures data related to the behavior of said grinding body in contact with the grinding mill and the mill, processing, translating and transmitting said information to and from an external receiver located in the space surrounding the grinding body "; the invention works inside the load and has a single undefined sensor, however it does not delivers optical information, wear rate, alarm in case of a loose lining piece, apparent volumetric filling level, and other parameters such as those proposed in this application.
- the present invention describes a system and method of online monitoring of the operation within a rotary ore mill, for example, a SAG mill, by means of an optical and / or geometric scan for obtaining direct data on the work inside the windmill. More specifically an optical monitoring system and / or geometric inside a rotary mill of minerals and its method of operation.
- the invention allows direct measurement and online transmission of variables that describe the state and operation of the inside of the grinding chamber of a mill.
- the optical and / or geometric monitoring system comprises an optical and / or geometric monitoring unit that is located in a safe area that has direct vision inside the mill, which avoids the risk of destructive damage to the instruments within this unit Optical and / or geometric monitoring.
- the system has a logical platform, with software and firmware for the processing and presentation of the data to the user in the control of the operation.
- the system allows to measure variables such as effective wear rate and geometric profile of the wear of each piece of the lining, detachment of a lining piece, apparent volumetric filling level and absolute position of the load with the SAG mill moving, filling level inspected during detections, approximate indication of the frequency of projection of cataract load, occurrence of load packing between lifters and three-dimensional map of the lining of the mill and its load during operation and others.
- a direct visual monitoring system for sensing the inside of a rotary mill of minerals or the like, comprising, a monitoring unit, a main control unit and an operation unit and management, where the monitoring unit is located inside a feed hopper where the mill is fed from a container, and the location of the monitoring unit inside the feed hopper is adjusted according to the physical characteristics of said feed hopper and the dimensions of the mill, so as to allow a direct view of the inside of the mill.
- a protection for its operation which comprises an outer shell that It has a shape defined by the volume it occupies inside the feed hopper and protects a container of sensors that are visually oriented, towards the inside of the mill.
- the outer shell is constructed as a steel shield with a high hardness level, in addition, to absorb any type of impact, it has a rubber coating and to absorb the vibrations it has low frequency passive dampers, and optionally active dampers are used.
- the sensor container that are visually oriented, towards the inside of the mill, comprises sensor means that are arranged in said sensor container, which comprises a container, which inside are composed of a laser scanner, a thermal camera, a digital camera, a plurality of lighting means, a thermocouple and an accelerometer; and the sensor container has a face oriented towards the inside of the mill, which is a sight panel which contains openings with the shape of each element or sensor that remain at the surface level, thus, the laser scanner has a scanner opening,
- the thermal camera is associated with a thermal opening
- the digital camera has a photographic opening and next to this digital camera there is a lighting opening, where the lighting opening is defined by the arrangement that is adopted when calibrating the digital camera for a better visual approach to the interior of the mill, whereby the lighting means can be arranged at the side, below, above or around the digital camera.
- the visor panel has a visor at the top that is hollow and that is an integral part of the sensor container, which is internally connected to a clean air pressure duct, where the air injected by the pressure air duct flows through from the visor and exits through a plurality of holes generating a plurality of air jets flowing from the top of the visor down, keeping the outer face of the visor panel clean and preventing the embedding of material in the different sensors and lighting means.
- a second objective is to provide an operational method of the monitoring system Direct visual for sensing the inside of a mill, which comprises having a monitoring unit for direct visual monitoring to sensing the inside of a mill, where the monitoring unit contains inside a sensor container that allows:
- thermocouple sensing the internal temperature of this, by means of a thermocouple
- distance detection in one or more planes, by means of distance detection, for example, flight time detection, using laser beams by means of a laser scanner, to obtain one or more three-dimensional geometric profiles of the environment in predefined angular positions from inside the mill.
- Figure 1 shows a perspective view of a rotary ore mill using the present invention.
- Figure 2 shows a perspective view of the feed chute showing the location area of the optical and / or geometric monitoring unit.
- Figure 3 shows an isometric view of the optical and / or geometric monitoring unit.
- Figure 4 shows an isometric view from below of the sensor unit that is installed in the monitoring unit.
- Figure 5 shows an isometric view from above of the sensor unit that is installed in the monitoring unit.
- Figure 6 shows a schematic view of the operation of the sensors inside the mill.
- Figure 7 shows a front view of the inside of the mill, from the location point of the sensor unit.
- Figure 8 shows an example of a block diagram of the control and management hardware of the optical monitoring device.
- the present invention is described as a direct visual monitoring system inside a mill (10), which comprises a monitoring unit (240), a main control unit (250) and an operation and management unit (300) , as described in Figure 1.
- the monitoring unit (240) is located inside a feed hopper (220) where the mill is fed (150);
- the location of the monitoring unit (240) inside the feed hopper (220) is adjusted according to the physical characteristics of the feed hopper (220) and to the dimensions of the mill (150), so as to allow direct view of the inside of the mill (50), as shown in figure 2.
- the feed hopper (220) is the loading feeder of the mill (150) from the container (200), so that the monitoring unit (240) It is subject to vibrations during the loading of the mill (150), which determines, together with the aggressive environment of the load that passes under the monitoring unit (240), a suitable protection for its operation.
- the monitoring unit (240) comprises an outer housing (260) that has a shape defined by the volume it occupies inside the feed hopper (220) and protects a sensor container (270) that are visually oriented, into the mill (150), as shown in figure 3.
- the outer shell (260) is subjected to the passage of ore that enters the mill (150) at high speed and irregularly, to the periodic entry of grinding balls, high pressure water injection that can generate corrosion in the feed hopper (220), fine suspension material and vibrations in the feed hopper (220) due to the displacement of the mineral; All this causes the outer shell (260) to be constructed as a steel armor with a high hardness level. It is possible to combine other shielding materials, since not all the outer shell (260) is subjected to the passage of the mineral; In addition, to absorb any type of impact, a rubber coating is applied and passive low frequency dampers are used, and depending on the behavior of the mineral flow, optionally active dampers are used, which operate from a signal delivered by the container of sensors (270).
- the sensor container (270) Inside the outer shell (260) is the sensor container (270), shown in Figures 4 and 5, which contains inside the sensor means for monitoring the inside of the mill (150).
- the sensor means that are arranged in the sensor container (270), which comprises a container (271) which are composed of a laser scanner (275), a thermal camera (276), a digital camera (277) , a plurality of lighting means (279), a thermocouple (278) and an accelerometer (274).
- the sensor container (270) has a face oriented towards the inside of the mill (150), which is a sight panel (290) which contains openings in the shape of each element or sensor that remain at the surface level; in figure 5, an example of an arrangement of the elements and sensors is shown, thus, the laser scanner (275) has a scanner opening (275 '), the thermal chamber (276) is associated with a thermal opening (276') , the digital camera (277) has a photographic opening (277 ') and next to this digital camera (277) there is a lighting aperture (279');
- the figure that has the lighting aperture (279 ') is defined by the arrangement that is adopted when the digital camera (277) is calibrated for a better visual focus towards the inside of the mill (150), whereby the means of lighting (279) can be have the digital camera (277) at the side, below, above, around, etc.
- the sight panel (290) has in its upper part a visor (282) that is hollow and that is an integral part of the sensor container (270), which is connected internally with a clean air pressure duct (280); the air injected by the pressurized air duct (280) flows through the visor (282) and exits through a plurality of holes (281) generating a plurality of air jets flowing from the top of the visor (282) towards below, keeping the outer face of the viewfinder panel (290) clean and preventing the embedding of material in the different sensors and lighting means (279).
- thermocouple (278) allows a temperature signal to be sent inside the sensor container (270) to the main control unit (250), which delivers a command signal to enter air conditioning into the sensor container (270) ) through the openings (272), one for the entrance and one for the air conditioning outlet.
- the opening (273) allows the output of the cables associated to the different means that are contained inside the sensor container (270), both the control and the signal and energy cables.
- the accelerometer (274) allows to send a movement signal from the sensor container (270) to the main control unit (250), and therefore from the monitoring unit (240), this signal is to allow the control of the dampers assets, when these are used.
- the lighting means (279) are shown in a single block, the example is composed, in this case, of six lighting units. It is evident that this plurality of lighting means (279) can be distributed according to the working conditions that each mill (150) presents.
- Figure 6 shows an example of operation of the laser scanner (275), which generates, for example, four scanning signals (275 "), to determine the distance and shape of the load inside the mill (150);
- the schematic view allows to see the feed hopper (220), which contains in its upper part the monitoring unit (240) and is in the sensor container (270).
- Figure 7 describes a schematic view of the inside of the mill (150) from the sight panel (290), which allows to determine the shape of the instantaneous load (160), the state of the linings (170), and the thermal profile of the instantaneous load (160) and of the lining (170) of the mill (150).
- All monitoring actions can be managed by a user in the operation and management unit (300), however, it is possible to make an automatic control of the results arriving from the monitoring unit (240), whereby the operation and Monitoring management is manual or automatic, depending on the operator's choice.
- the thermocouple (278) generates a continuous voltage signal whose value is uniquely related to the temperature to which it is subjected and which corresponds to the interior of the sensor container (270); This temperature signal is acquired by the main control unit (250) to store the temperature behavior over time and alert the operation of the mill (150), either manual or automatic, on temperature conditions that are not appropriate for the operation. of the other sensors inside the sensor container (270), and eventually to control the flow of indoor conditioning air and maintain an appropriate temperature for the operation of all the sensors inside the sensor container (270).
- the accelerometer (274) generates a digital signal that contains three variables as a function of time, proportional to the acceleration to which the accelerometer (274) is subjected on the vertical axis, on the lateral horizontal axis and on the frontal horizontal axis.
- the digital signal that combines the three accelerations is acquired by the main control unit (250) to store the vibration behavior over time and alert the operation of the mill (150), either manual or automatic, on vibration conditions poorly suited for the operation of the other sensors inside the sensor container (270), and eventually to control the stiffness of the active dampers on which the box containing the sensors is supported and thus maintain an appropriate vibration level for the operation of all sensors inside the sensor container (270).
- the digital camera (277) acquires two-dimensional images of the interior of the mill (150) in the visible spectrum through a lens of optical characteristics appropriate to the geometric conditions of the mill (150).
- the digital camera (277) has characteristics suitable for the speed of movement of the load (160) and of the mill (150), and for the lighting produced by the lighting means (279).
- the operation of the digital camera (277) is commanded from the main control unit (250), allowing photographs to be acquired at a predetermined frequency for the operation of the mill (150).
- the images captured by the digital camera (277) are automatically stored and processed in the main control unit (250).
- the thermal chamber (276) acquires two-dimensional images of the interior of the mill (150) in the thermal spectrum, which implies that the color or hue of each pixel is related to the temperature of the photographed object. The capture of these images is done through a lens of optical characteristics appropriate to the geometric conditions of the mill (150), which in turn is protected by a window whose material has molecular characteristics that make it especially permeable to thermal frequencies, for example, Germanium.
- the thermal chamber (276) has characteristics suitable for the speed of movement of the load (160) and of the mill (150). The operation of the thermal chamber (276) is commanded from the main control unit (250), allowing thermography to be acquired at a predetermined frequency for the operation of the mill (50).
- thermographs captured by the thermal camera (276) are automatically stored and processed in the main control unit (250).
- thermographs analysis procedures are performed with known techniques, with two purposes: on the one hand the same purposes are pursued as with the images of the digital camera (277), allowing a redundant measurement plus the option of having images in case that the lighting means (279) do not operate.
- it is sought to identify abnormal thermal gradients in the component parts of the lining (170) of the mill (150) to identify points of structural failure early and elements of temperature higher than the others (balls) are searched in the load (160) steel) and thus the relative amount of balls is estimated based on the amount of ore.
- thermographs only presenting the thermographs to the mill operator (150) in the operation and management unit (300) already delivers valuable information that is currently not available.
- the laser scanner (275) executes a distance detection in one or more planes, by means of the distance detection, for example, flight time detection, using laser beams (275 ") that move angularly in time by means of a mirror that rotates at high speed. This allows one or more three-dimensional geometric profiles of the environment to be obtained in predefined angular positions.
- the laser beams (275 ") have frequency and power characteristics that allow them to penetrate dusty and damp environments.
- the operation of the laser scanner (275) is commanded from the main control unit (250), allowing three-dimensional geometric profiles to be acquired at a frequency appropriate to the operation of the mill (150).
- the distance and angle values of each laser beam (275 ") generated by the laser scanner (275) are automatically stored and processed in the main control unit (250).
- Figure 8 describes the physical relationship of control and management of the media contained in the sensor container (270), controlled by the main control unit (250) which, by means of operating means, such as sources, valves and relays, controls the media operating in the sensor container (270), and the operation and management unit (300) allows the management of the operational means in the sensor container (270), through the main control unit (250), as has been described
- the method of operating in-line monitoring within a rotary mill of minerals or the like, through a direct display of the load and the inner lining of said mill, is carried out through the different means contained in the sensor container (270) , as has been detailed in each sensor functionality.
- the operative method includes direct visual monitoring to sense the inside of a mill (150), to have a monitoring unit (240) that contains inside a sensor container (270) that allows sensing the interior temperature of the latter; determine the acceleration on the vertical axis, on the lateral horizontal axis and on the frontal horizontal axis, as a function of time; acquire two-dimensional images of the interior of the mill (150) by means of a digital camera (277), of the geometric conditions of the interior of the mill (150); acquire two-dimensional images of the interior of the mill (150) in the thermal spectrum, by means of a thermal chamber (276) obtaining thermographies of the interior of the mill (150); execute a distance detection in one or more planes, by means of distance detection, for example, flight time detection, using laser beams (275 ”) by a laser scanner (275), to obtain one or more geometric profiles three-dimensional environment in predefined angular positions inside the mill (150).
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Crushing And Grinding (AREA)
- Radiation Pyrometers (AREA)
Abstract
Description
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/357,529 US9849460B2 (en) | 2011-11-10 | 2011-11-10 | Direct visual monitoring method and system for sensing the interior of a rotary mineral mill |
PCT/CL2011/000069 WO2013067651A1 (es) | 2011-11-10 | 2011-11-10 | Sistema y método de monitoreo visual directo para sensar el interior de un molino rotatorio de minerales |
CA2854957A CA2854957C (en) | 2011-11-10 | 2011-11-10 | Direct visual monitoring system and method for sensing the interior of a rotary mineral mill |
AU2011380685A AU2011380685B2 (en) | 2011-11-10 | 2011-11-10 | Direct visual monitoring method and system for sensing the interior of a rotary mineral mill |
ZA2014/03824A ZA201403824B (en) | 2011-11-10 | 2014-05-26 | Direct visual monitoring method and system for sensing the interior of a rotary mineral mill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CL2011/000069 WO2013067651A1 (es) | 2011-11-10 | 2011-11-10 | Sistema y método de monitoreo visual directo para sensar el interior de un molino rotatorio de minerales |
Publications (1)
Publication Number | Publication Date |
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WO2013067651A1 true WO2013067651A1 (es) | 2013-05-16 |
Family
ID=48288418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CL2011/000069 WO2013067651A1 (es) | 2011-11-10 | 2011-11-10 | Sistema y método de monitoreo visual directo para sensar el interior de un molino rotatorio de minerales |
Country Status (5)
Country | Link |
---|---|
US (1) | US9849460B2 (es) |
AU (1) | AU2011380685B2 (es) |
CA (1) | CA2854957C (es) |
WO (1) | WO2013067651A1 (es) |
ZA (1) | ZA201403824B (es) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018161185A1 (es) * | 2017-03-09 | 2018-09-13 | Lmagne Ingeniería Ltda. | Un sistema y un proceso para determinar en línea las características de bolas gastadas y los trozos de las mismas, que han sido expulsadas de un molino de molienda de minerales semiautógeno (sag) |
US10412275B2 (en) | 2014-07-04 | 2019-09-10 | Millwatchip Pty Ltd | Apparatus for monitoring of grinding mill interior during operation |
CN110523518A (zh) * | 2019-07-26 | 2019-12-03 | 中信重工机械股份有限公司 | 一种自磨机/半自磨机的进料口密封结构 |
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CL2017002013A1 (es) * | 2017-08-07 | 2017-12-11 | Aravena Marco Antonio Albornoz | Sistema y método para contar bolas al alimentar un molino de minerales. |
WO2020132741A1 (en) | 2018-12-26 | 2020-07-02 | Viwek Vaidya | Device and system for monitoring wear of lifters mounted in a mineral crusher |
CN114353964B (zh) * | 2022-03-21 | 2022-05-31 | 北矿智云科技(北京)有限公司 | 半自磨机筒体温度的检测系统和方法 |
CN118122480A (zh) * | 2024-05-08 | 2024-06-04 | 昆明理工大学 | 一种基于数字孪生的半自磨机状态监测方法及系统 |
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- 2011-11-10 AU AU2011380685A patent/AU2011380685B2/en active Active
- 2011-11-10 US US14/357,529 patent/US9849460B2/en active Active
- 2011-11-10 CA CA2854957A patent/CA2854957C/en active Active
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10412275B2 (en) | 2014-07-04 | 2019-09-10 | Millwatchip Pty Ltd | Apparatus for monitoring of grinding mill interior during operation |
WO2018161185A1 (es) * | 2017-03-09 | 2018-09-13 | Lmagne Ingeniería Ltda. | Un sistema y un proceso para determinar en línea las características de bolas gastadas y los trozos de las mismas, que han sido expulsadas de un molino de molienda de minerales semiautógeno (sag) |
US11559816B2 (en) | 2017-03-09 | 2023-01-24 | Lmagne Ingenieria Ltda. | System and a process to determine online the characteristics of expended balls and the stitches of the same, which have been expulsed from a semiautogen mineral grinding mill |
AU2018232200B2 (en) * | 2017-03-09 | 2023-08-03 | Estudio, Asesorías Y Capacitación Altoya Ltda. | System and method for in-line determination of the characteristics of worn balls and pieces thereof, which have been ejected from a semi-autogenous mineral grinding (SAG) mill |
CN110523518A (zh) * | 2019-07-26 | 2019-12-03 | 中信重工机械股份有限公司 | 一种自磨机/半自磨机的进料口密封结构 |
Also Published As
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AU2011380685A1 (en) | 2014-05-29 |
US9849460B2 (en) | 2017-12-26 |
AU2011380685B2 (en) | 2016-10-13 |
US20140338474A1 (en) | 2014-11-20 |
CA2854957A1 (en) | 2013-05-16 |
ZA201403824B (en) | 2015-11-25 |
CA2854957C (en) | 2018-01-09 |
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