EP0203026A2 - Steinbrecher mit Zuführungskontrolle - Google Patents

Steinbrecher mit Zuführungskontrolle Download PDF

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Publication number
EP0203026A2
EP0203026A2 EP86630085A EP86630085A EP0203026A2 EP 0203026 A2 EP0203026 A2 EP 0203026A2 EP 86630085 A EP86630085 A EP 86630085A EP 86630085 A EP86630085 A EP 86630085A EP 0203026 A2 EP0203026 A2 EP 0203026A2
Authority
EP
European Patent Office
Prior art keywords
rocks
hopper
signal
power draw
level
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86630085A
Other languages
English (en)
French (fr)
Other versions
EP0203026A3 (de
Inventor
Arthur A. Bartling
Dean M. Kaja
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rexnord Inc
Original Assignee
Rexnord Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rexnord Inc filed Critical Rexnord Inc
Publication of EP0203026A2 publication Critical patent/EP0203026A2/de
Publication of EP0203026A3 publication Critical patent/EP0203026A3/de
Withdrawn legal-status Critical Current

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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
    • B02C25/00—Control arrangements specially adapted for crushing or disintegrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2/007—Feeding devices

Definitions

  • the invention is directed to rock crushers and more particularly to a method and apparatus for controlling the operation of a rock crusher to maximize the efficiency of the rock crusher.
  • a conventional cone crusher for use in crushing rock is comprised of a large housing having a central cavity and including a stationary upper cone and a gyrating lower cone housed in the central cavity.
  • a drive arrangement is provided for causing gyration of the lower cone in the central cavity.
  • an electric motor is provided for driving the cone.
  • the cone crusher also includes a hopper above the cone adapted to contain rock to be fed to the central cavity for crushing between the stationary and gyrating cones.
  • Conventional cone crushers also commonly employ a conveyor belt feeder or a vibrating feeder for supplying rock to the hopper, such feeders including a variable speed drive arrangement for varying the rate at which rock is supplied to the hopper.
  • Prior art rock crushers have also included con- trot apparatus for controlling the rate at which rock is supplied to the hopper.
  • the control means includes means for increasing the feed rate of the rock to the rock crusher to a point where the rock crusher is operating at a capacity maximizing the productivity of the machine. Control features are also provided to prevent the feed rate from becoming so great that the hopper is too full.
  • a transducer is connected to the cone crusher motor to measure the power draw of the cone crusher during its operation.
  • An analog lever sensor or a level contact probe is also supen- ded above the hopper and produces a signal responsive to the level of the rock in the hopper.
  • the power draw transducer is connected to a microprocessor including a proportional integral derivative (PID) control loop.
  • PID control loop compares the measured power draw to a selected power draw at which the rock crusher operates at its maximum safe power level. If the measure power draw is less than the selected power draw, the PID sends a signal to the variable speed feeder drive to cause an increased feeder speed. If the measured power draw is at the selected power draw level, the PID will send a control signal, to the variable speed feeder to cause it to maintain its speed. If the measured power draw is greater than the selected power draw, the PID sends a signal to the variable speed feeder drive to cause a decrease in feeder speeds. In the event the feeder speed is such that the level of rock in the hopper exceeds a predetermined level, the analog level sensor will send a signal to the feeder decreasing the feeder speed.
  • the PID In operation of such a prior art cone crusher, when the crusher is operating in a condition that is limited by the level of feed in the hopper, and while the horsepower draw is below the selected value, the PID will send a signal to the feeder causing the feeder speed to increase the rate of supply of rock to the hopper. As the supply of rock increases, the horsepower draw will increase and the level of rock in the hopper will increase. As the level of rock in the hopper reaches the upper limit, the analog level sensor or level probe will cause the feeder speed to be reduced. As the rate of supply of rock is reduced, the sensed power draw by the crusher motor will be reduced, and the PID will then again increase the feeder speed. The PID will continue to increase the feeder speed until the level of rock is once again above the acceptable level in the hopper, and the analog level device or level probe will decrease the feeder speed.
  • This arrangement results in operation of the rock crusher at a level approaching the desired power draw level, but causes a continued cyclical fluctuation in the rate of supply of rocks to the hopper as the feeder speed is increased by the PID and is then decreased by the analog level sensor or level probe.
  • the average production rate is less than maximum due to the cyclical fluctuations.
  • the present invention provides an improved rock crusher and an improved method and apparatus for controlling the operation of a rock crusher and rock feed conveyor such that the rate of supply by the feeder to the crusher hopper is kept within carefully controlled parameters and such that the power level at which the crusher operates is maintained within a narrow range at the optimum operating range of the rock crusher.
  • the apparatus embodying the invention comprises a control means such as a microprocessor having a first PID control loop receiving an input signal from a watt transducer sensing the power draw by the crusher motor and having a second PID control loop receiving a signal from an analog level sensor measuring the level of rock in the hopper.
  • the first PID - compares the sensed power draw with a selected power draw and produces an output signal proportional to the error or difference between the sensed power draw and the selected power draw.
  • the second PID compares the sensed level in the hopper to a selected or desired level in the hopper and produces a signal proportional to this measured difference.
  • the signal from the first PID and the signal from the second PID are transmitted to an arbitration routine of the control means and the signals will be compared.
  • both the first PID and the second PID will send signals to the arbitration routine calling for an increase in the feeder speed.
  • the first or second signal calling for the lower feeder speed will be transmitted to the feeder.
  • the power draw and material level will increase.
  • the power draw and the level of the material in the hopper will continue to be sensed and the PIDs will continue to produce first and second output signals which are transmitted to the arbitration routine.
  • the feeder speed will be maintained at the speed producing the preferred power draw or material level.
  • the power draw by the crusher motor is affected by the size of the rocks being supplied to the crusher as well as by the hardness of the rocks.
  • the rocks supplied to the crusher will not be homogeneous in size and hardness, and as a result, the power draw by the motor will vary during operation of the crusher.
  • the control signal to the feeder may be generated alternately by the power draw PID and the material level PID depending on which PID calls for the lower feeder speed.
  • the feeder speed may be controlled by one PID output and then by the other PID.
  • This control arrangement provides for accurate control of the feeder such that the rock crusher will operate at a power draw and material level closely approximating a desired or maximum productivity power draw and material level, and the power draw and material level will be held relatively constant with the variations in the power draw or material level being caused by variation in character of the rock being supplied to the rock crusher.
  • the microprocessor can include additional PID control loops adapted to receive signals from other crusher parameter sensing devices and control the feeder speed in response to these additional inputs as well as power level and material level.
  • a rock crusher 10 of the type used to crush rock to reduce ore for processing or to form aggregate or gravel.
  • the rock crusher 10 includes a base or frame 12 supporting a generally cylindrical bowl 14 having a central conical cavity 16.
  • a blow finer 17 is housed in the central conical cavity 16 and is fixedly supported by the bowl 14.
  • a lower cone or mantle is housed in the cavity 16 and is driven in such a manner that there is gyration of the lower cone or mantle 18 with respect to the inner surface of the bowl liner 17.
  • the construction of the bowl 14, the mantle 18 and the cone drive mechanism are conventional, and are not illustrated in detail.
  • a central generally vertical rotatable main shaft 20 supports the mantle 18 within the central chamber 16 of the bowl 14, and an electric motor 22 is drivingly connected to the mantle 18 by a pulley 24, a drive shaft 26, gears 28 and 30 and an eccentric 31 to cause gyration of the mantle 18 about the axis of the bowl liner 17.
  • the rock crusher 10 also includes a generally cylindrical hopper 34 mounted above the cylindrical bowl 14 and adapted to support a quantity of rocks to be fed into the crusher.
  • rocks in the hopper 34 will fall through the opening 36 in the upper portion of the crusher and will be received between the mantle 18 and the bowl liner 17.
  • the cone 18 will crush the rocks against the cone liner 17, and the crushed rock will fall through the gap 38 between a bottom portion of the cone 18 and the cone liner 17 and will fall onto a conveyor 40 whereby the material can be conveyed to a storage area.
  • Means are also provided for supplying rocks to the hopper 34. While various means could be provided, in the illustrated arrangement, the means for supplying rocks to the hopper comprises a conventional belt conveyor or feeder 42 adapted to have one end 44 positioned beneath a large supply hopper 46 and an opposite end 48 positioned above the rock crusher hopper 34. In other constructions the feeder 42 could also comprise a variable speed vibrating pan positioned directly below a large supply hopper.
  • the belt conveyor 42 includes a variable speed drive including a variable speed motor 50 drivingly connected to a belt 43. Rocks in the hopper 46 are deposited on the belt of the feeder 42 and carried by the belt to the opposite end 48 of the feeder where they are dropped into the hopper 34.
  • Means are also provided for controlling operation of the variable speed motor 50 to control the rate at which rocks are fed to the rock crusher hopper 34.
  • the means for controlling the variable speed motor 50 includes a controller 54 operably connected to the variable speed motor 50 and functional to produce an electrical signal controlling the operation of the variable speed motor 50. While in one preferred form of the invention the controller 54 comprises a conventional microprocessor, in other arrangements the microprocessor could be replaced by a programmable controller or a computer.
  • the means for controlling the operation of the variable speed motor 50 also includes a means for sensing the power drawn by the motor 22 of the rock crusher 10 and a means for sensing the level of rocks or other material in the crusher hopper 34. While various means could be provided for sensing the power drawn by the motor 22, in the illustrated arrangement a conventional watt transducer 58 is connected to the crusher motor 22 and measures the power output or horsepower output of the motor. A signal from the watt transducer 58 is transmitted to the microprocessor controller 54. This signal can be in the form of a percentage of the horsepower output of the motor 22 when operating af its maximum output.
  • an analog level sensor 60 is mounted above the hopper 34.
  • the analog level sensor 60 is conventional and produces an electrical signal indicating the level of rock in the hopper 34, and this electrical signal is transmitted to the microprocessor 54.
  • the signal from the analog level sensor 60 can be in the form of a percentage of the total capacity of the hopper.
  • microprocessor controller 54 could have other constructions, in one form of the invention the microprocessor controller 54 can comprise a Model 8031 microprocessor manufactured by Intel Corporation, Sunnyvale, California.
  • the microprocessor 54 includes two proportional integral derivative (PID) control loops (Fig. 2).
  • the watt transducer 58 is operably connected to the microprocessor 54 such that the watt transducer 58 supplies a first input signal indicating the power draw to one of the two PIDs, and the output from the analog level material level sensor 60 is also transmitted to the microprocessor 54 so as to supply a second electrical input signal to a second one of the PIOs.
  • Proportional integral derivative control loops are conventional and produce an output signal based on the following equation:
  • the microprocessor 54 is programmed such that in this application the "bias" term in the PIDs will be a selected startup speed of the variable speed feeder 42. This startup speed can be input into the PlDs as a percentage of the maximum operating speed of the conveyor.
  • the start-up speed will be a feeder speed selected by the crusher operator close to the speed of the conveyor or feeder 42 where the crusher 10 will operate at maximum productivity but which is known by the operator to be below the safe operating limits of the crusher and below the speed at which the feeder 42 will supply an excess of material to the hopper 34. The operator can select this start-up speed based on his experience in operating the cone crusher and feed conveyor.
  • the feeder start- up speed can be, for example, 60% of the maximum operating speed of the feeder, and will normally supply rocks t Q the crusher at a rate where the crusher will operate at 75% to 90% of its maximum productivity.
  • the feeder start-up speed is set relatively low so that the crusher will initially operate under a relatively light load. The PlDs will then cause an increase in the speed of the feeder until the crusher is operating at its most productive level.
  • the "error" term of the PID receiving a signal from the motor power draw transducer 58 comprises the selected power draw at which the crusher operates at its maximum productivity minus the power draw at which the cone crusher is actually operating as measured by the power draw transducer.
  • the microprocessor 54 will be programmed to include the horsepower at which the crusher will perform at its maximum productivity.
  • the power draw transducer 58 will produce a signal identifying the actual power draw by the crusher motor 22, and these two power factors will be compared to produce the "error" term used in the power draw PID control loop.
  • the material level PID is programmed to include a selected maximum hopper material level.
  • the analog level sensor 60 will produce a signal identifying the actual level of material in the hoppper 34.
  • the selected hopper level is compared to the actual hopper level, as sensed by the analog level sensor 60 to produce the "error" terms for the material level PID control loop.
  • each PID control loop the "integral term” is a summation of the "errors" measured during successive operations of the PID loop divided by a selected integral time parameter.
  • the empty crusher power draw is the power draw of the crusher 10 when the crusher is running empty plus a factor of approximately 10% to 20%.
  • the controller 54 requires the input of the empty crusher power draw because, if the power draw falls below the empty crusher power draw, the PID control loop signal to the feeder will be interrupted and the PID will be reset and send a signal to the feeder 42 causing the feeder to operate at the feeder start-up speed. It is important, if the crusher power draw falls below the empty crusher power draw, that the feeder speed be reset to the startup speed. There may be a blockage or other interruption of rock to the feeder such that the rock will not be fed to the crusher 10.
  • the crusher power draw would decrease, and the power draw PID would attempt to increase the crusher power draw by increasing the speed of the feeder. Without the reset feature, the power draw PID would try to continue to increase the feeder speed even though rocks are not being delivered to the feeder.
  • the feeder speed will be set back to the startup speed such that, when the obstruction or interruption of rocks to the feeder 42 is cleared, stones can be supplied by the feeder to the rock crusher at the start-up speed, and the PlDs can once again increase the feeder speed to the desired operating level.
  • the microprocessor 54 is also provided with a start-up time factor. This is a time period during which the microprocessor will hold the feeder speed at the feeder start-up speed.
  • the microprocessor is programmed such that the time period will start running when the power draw by the cone crusher exceeds the empty crusher power draw.
  • a suitable start-up time may be, for example, approximately 15 seconds.
  • the PIDs will produce output signals to maintain the feeder speed at the start-up speed during this time period. This permits the crusher power draw and the material level signals fed to the PIDs to stablilize at the feeder start-up speed and prevents the PlDs from overreacting to wide fluctuations caused by large "error" figures generated during the initial operation of the PID control loop. Large "errors" are generated during start-up because of the substantial difference between the set points and the measured values supplied to the PIDs by the power draw transducer 58 and the analog level sensor 60.
  • the crusher 10 In operation, when the crusher 10 is running at its empty power draw, the operator will then start the feeder or conveyor 42, and the feeder will operate at its preset feeder start-up speed. As the rock is delivered to the crusher 10, a load will be placed on the crusher motor 22, and the crusher power draw will begin to rise above the empty pwoer draw thereby causing the start-up timer to function. The feeder speed is maintained at the feeder start-up speed during the 15 second start- up time. If, at any time, the power draw sensed by the transducer 58 falls below the empty power draw level, the feeder speed will be set back to the feeder start-up speed, and the start-up timer will be reset again to begin counting off the start-up time.
  • the signals from the transducer 58 and the analog level sensor 60 are continually sent to the PlDs. If the power draw signal or material level signal supplied to the PlDs exceeds either of the power draw or material level set points, the timer is canceled, and the PlDs will begin immediate control of the feeder speed without allowing the timer to run out.
  • the start-up speed is 75% of the maximum feeder speed and the power draw set point is 80% of the maximum of the crusher power draw
  • the gain is selected to be 0.5
  • the actual power draw signal is 70% of the maximum power draw
  • the error at that particular point in time is 10%.
  • the crusher power draw transducer will continue to transmit a power draw signal to the first PID control loop, and the first PID control loop will continue to transmit an output signal.
  • the second PID control loop will similarly receive an input signal from the analog level sensor and will produce an output signal:
  • Means are also provided for receiving the output signals from the two PID control loops and for transmitting a selected one of the signals from the control loops to the variable speed motor of the feed conveyor.
  • the microprocessor 54 is also programmed to include an arbitration routine for selecting an output signal from the first PID and second PID. The output signal from the power draw PID and the output signal from the material level PID are sent to the arbitration routine, and the PID output signal calling for the lower feeder speed will be transmitted to the variable speed motor 50 of the feed conveyor or feeder 42.
  • the arbitration routine can comprise a conventional comparison statement for selecting one of two signals.
  • the arbitration routine is also programmed such that the PID producing the higher feeder speed signal is then caused to add the error sensed at that time into the integral term. If the sensed value is below the set point such that the addition of the error to the integral term in the PID equation would cause an increase in the feeder speed output signal, the error is not added to the integral term, and the integral term and output signal remain unchanged. If the sensed value is above the set point, the error is added to the integral term, and the PID will produce a new lower output signal. The output signals from the two PIOs are again compared, and the output signal calling for the lower feeder speed will be transmitted to the variable speed feeder drive.
  • the result of the arbitration of the outputs of each of the PID control loops is that the power draw set point and the maximum material level set point can be set at their maximum safe limit without regard to the other.
  • the cone crusher will operate at a level of operation approximating the lowest of these operating limits.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Pulverization Processes (AREA)
EP86630085A 1985-05-17 1986-05-06 Steinbrecher mit Zuführungskontrolle Withdrawn EP0203026A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73523985A 1985-05-17 1985-05-17
US735239 1985-05-17

Publications (2)

Publication Number Publication Date
EP0203026A2 true EP0203026A2 (de) 1986-11-26
EP0203026A3 EP0203026A3 (de) 1988-03-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86630085A Withdrawn EP0203026A3 (de) 1985-05-17 1986-05-06 Steinbrecher mit Zuführungskontrolle

Country Status (7)

Country Link
EP (1) EP0203026A3 (de)
JP (1) JPS61263657A (de)
AU (1) AU5725386A (de)
BR (1) BR8602240A (de)
DE (1) DE203026T1 (de)
NO (1) NO861970L (de)
ZA (1) ZA862693B (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996001694A1 (de) * 1994-07-11 1996-01-25 Pmt Gesteinsvermahlungstechnik Powder Maker Technologies Gmbh Spiralstrahlmühle
DE19708185A1 (de) * 1997-02-28 1998-09-03 Svedala Lindemann Gmbh Verfahren und Einrichtung zum Beschicken und Betreiben einer Anlage zum Zerkleinern von recycelbaren Alt-Gütern
GB2344097B (en) * 1998-11-27 2002-10-30 Tickhill Eng Co Ltd Box tippler
EP1374102A1 (de) 2001-03-30 2004-01-02 Metso Minerals (Tampere) Oy System zum sammeln von informationen
US6736343B2 (en) 1999-03-10 2004-05-18 Sumitomo Special Metals Co., Ltd. Milling apparatus and milling method
US7600545B2 (en) 2005-10-18 2009-10-13 Metso Paper, Inc. Processing apparatus of wood to be chipped
EP2596868A1 (de) * 2011-11-28 2013-05-29 Sandvik Intellectual Property AB Verfahren zur Steuerung des Betriebs eines Kegelbrechers
US9283568B2 (en) 2011-11-28 2016-03-15 Sandvik Intellectual Property Ab Method of controlling an inertia cone crusher
RU2584164C2 (ru) * 2011-06-13 2016-05-20 Сандвик Интеллекчуал Проперти Аб Способ опустошения инерционной конусной дробилки
EP2406009A4 (de) * 2009-03-11 2017-04-12 Sandvik Intellectual Property AB Verfahren und vorrichtung zur steuerung des betriebs eines kreiselbrechers
CN107899733A (zh) * 2017-12-18 2018-04-13 徐工集团工程机械有限公司 破碎机及其控制方法、装置和系统、计算机可读存储介质
CN110639678A (zh) * 2019-09-26 2020-01-03 张山 一种圆锥式移动破碎站

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7010763B2 (ja) * 2018-05-21 2022-01-26 株式会社アーステクニカ 旋動式破砕機並びに旋動式破砕機の制御装置及び方法

Citations (2)

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Publication number Priority date Publication date Assignee Title
DE2356857A1 (de) * 1973-11-14 1975-05-15 Prerovske Strojirny Np Verfahren und anordnung zur kontrolle von extremzustaenden im schuettrichter und zur kontrolle des brechraums von zerkleinerungsmaschinen
US4281800A (en) * 1979-11-02 1981-08-04 Allis-Chalmers Corporation Operation of associated crushing plant and mill

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2356857A1 (de) * 1973-11-14 1975-05-15 Prerovske Strojirny Np Verfahren und anordnung zur kontrolle von extremzustaenden im schuettrichter und zur kontrolle des brechraums von zerkleinerungsmaschinen
US4281800A (en) * 1979-11-02 1981-08-04 Allis-Chalmers Corporation Operation of associated crushing plant and mill

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CONTROL ENGINEERING, vol. 10, no. 1, January 1963, pages 97-99, New York, US; W.R. PATTERSON et al.: "Magnetic logic maximizes crusher output" *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996001694A1 (de) * 1994-07-11 1996-01-25 Pmt Gesteinsvermahlungstechnik Powder Maker Technologies Gmbh Spiralstrahlmühle
DE19708185A1 (de) * 1997-02-28 1998-09-03 Svedala Lindemann Gmbh Verfahren und Einrichtung zum Beschicken und Betreiben einer Anlage zum Zerkleinern von recycelbaren Alt-Gütern
DE19708185C2 (de) * 1997-02-28 2002-07-11 Svedala Lindemann Gmbh Verfahren und Einrichtung zum Beschicken und Betreiben einer Anlage zum Zerkleinern von recycelbaren Alt-Gütern
GB2344097B (en) * 1998-11-27 2002-10-30 Tickhill Eng Co Ltd Box tippler
US6736343B2 (en) 1999-03-10 2004-05-18 Sumitomo Special Metals Co., Ltd. Milling apparatus and milling method
EP1374102A1 (de) 2001-03-30 2004-01-02 Metso Minerals (Tampere) Oy System zum sammeln von informationen
US7600545B2 (en) 2005-10-18 2009-10-13 Metso Paper, Inc. Processing apparatus of wood to be chipped
EP2406009A4 (de) * 2009-03-11 2017-04-12 Sandvik Intellectual Property AB Verfahren und vorrichtung zur steuerung des betriebs eines kreiselbrechers
RU2584164C2 (ru) * 2011-06-13 2016-05-20 Сандвик Интеллекчуал Проперти Аб Способ опустошения инерционной конусной дробилки
WO2013079318A1 (en) * 2011-11-28 2013-06-06 Sandvik Intellectual Property Ab A method of controlling the operation of a cone crusher
US9084998B2 (en) 2011-11-28 2015-07-21 Sandvik Intellectual Property Ab Method of controlling the operation of a cone crusher
CN103958063B (zh) * 2011-11-28 2016-01-20 山特维克知识产权股份有限公司 控制圆锥破碎机运行的方法
US9283568B2 (en) 2011-11-28 2016-03-15 Sandvik Intellectual Property Ab Method of controlling an inertia cone crusher
CN103958063A (zh) * 2011-11-28 2014-07-30 山特维克知识产权股份有限公司 控制圆锥破碎机运行的方法
EP2596868A1 (de) * 2011-11-28 2013-05-29 Sandvik Intellectual Property AB Verfahren zur Steuerung des Betriebs eines Kegelbrechers
CN107899733A (zh) * 2017-12-18 2018-04-13 徐工集团工程机械有限公司 破碎机及其控制方法、装置和系统、计算机可读存储介质
CN110639678A (zh) * 2019-09-26 2020-01-03 张山 一种圆锥式移动破碎站

Also Published As

Publication number Publication date
ZA862693B (en) 1986-12-30
AU5725386A (en) 1986-11-20
JPS61263657A (ja) 1986-11-21
DE203026T1 (de) 1987-03-19
NO861970L (no) 1986-11-18
EP0203026A3 (de) 1988-03-16
BR8602240A (pt) 1987-01-13

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