EP3700677A1 - Verfahren zum lastabhängigen betrieb einer materialzerkleinerungsanlage - Google Patents
Verfahren zum lastabhängigen betrieb einer materialzerkleinerungsanlageInfo
- Publication number
- EP3700677A1 EP3700677A1 EP18783459.3A EP18783459A EP3700677A1 EP 3700677 A1 EP3700677 A1 EP 3700677A1 EP 18783459 A EP18783459 A EP 18783459A EP 3700677 A1 EP3700677 A1 EP 3700677A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crusher
- load
- predetermined
- dependent
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
- B02C1/025—Jaw clearance or overload control
-
- 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
- B02C2/02—Crushing or disintegrating by gyratory or cone crushers eccentrically moved
- B02C2/04—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis
- B02C2/042—Moved by an eccentric weight
-
- 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
- B02C2/02—Crushing or disintegrating by gyratory or cone crushers eccentrically moved
- B02C2/04—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis
- B02C2/047—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis and with head adjusting or controlling mechanisms
-
- 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
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
Definitions
- the invention relates to a method for controlling the charging of a crusher drive via transmission elements driven crusher of a material crusher, wherein the crusher to be crushed material, in particular to breaking rock material is supplied, wherein a level of the crusher, preferably at a crusher inlet, with the aid of a level sensor is determined and wherein the crusher supplied volume flow is set to be broken material depending on the determined level and / or regulated.
- the invention also relates to a control unit for operating such a material crushing plant.
- the invention also relates to a computer program product for carrying out the method.
- Material crushers of the above type are used for crushing rock material, such as natural stones, concrete, brick or recycled material.
- the material to be shredded is a task unit of the material crushing plant, for example in the form of a funnel fed and fed via transport means, such as a vibrating chute, or a belt conveyor a crusher.
- the crusher may be preceded by a pre-screening in order to pass a fine fraction or a middle grain, which already has the suitable grain size, past the crusher.
- the crusher itself can be designed as a jaw crusher, as an impact crusher or as a cone crusher. In a jaw crusher, two crushing jaws arranged at an angle to one another form a wedge-shaped shaft, into which the material to be shredded is introduced.
- the opposing crushing jaw can be moved by means of an eccentric. This results in an elliptical movement of the moving crushing jaw, whereby the Brechtgut crushed and is guided in the shaft down to a crushing gap.
- the gap width of the crushing gap and thus the grain size of the shredded material, which is discharged through the crushing gap from the wedge-shaped shaft, can be adjusted by means of a gap adjustment.
- the level of the introduced into the shaft, to be crushed material can be measured by means of a level sensor, which is for example designed as an ultrasonic sensor.
- the volumetric flow of the material fed to the crusher via the transport device can be adjusted by appropriate actuation of the transport device as a function of the determined fill level.
- the crusher is exposed to high mechanical loads. These result inter alia from the feed size, the grain distribution and the compressive strength of the supplied material and from the desired crushing ratio and the level of the material to be crushed within the crushing chamber of the crusher. If the material shredding system is operated incorrectly, in particular if the size of the feed grain is too large and the crushing ratio is too high, the crusher can be overloaded. This allows different, highly loaded components of the crusher, the Crushing drive or the transmission elements are damaged or excessively fast wear.
- a method and a crusher which detect a bridging of the crusher.
- the crusher designed as a cone crusher
- a shaft of the cone is rotatably held in a thrust bearing.
- the thrust bearing is mounted on radially outgoing from the outer walls of the cone crusher arms as a carrier. Bridging the crusher can occur when material trapped between the cone and an arm lifts the cone, which can damage the crusher.
- the load of the wearer is determined and evaluated. For this purpose, the pressure in a hydraulic cylinder of a hydraulic actuator for vertical adjustment of the cone can be measured. In the evaluation, the power consumption of a drive of the crusher can be considered.
- the measurement can be done directly on the arms, but also on adjacent components that are in communication with the arms. If a bridging of the crusher has been detected, it is proposed to reduce or interrupt the loading of the crusher.
- the object of the invention relating to the method is achieved by directly or indirectly determining the mechanical load on the crusher or a parameter dependent on the mechanical load of the crusher, and in that the level of the crusher depends on the particular mechanical load Load or the dependent thereon characteristic is set. Different material properties, such as different feed sizes, grain distributions, compressive strengths and different comminution ratios result in different loadings of the crusher at a given filling level.
- the mechanical load of the crusher or a characteristic dependent on the mechanical load of the crusher is determined.
- a level of the crusher is specified, in which an overload of the crusher is reliably avoided with the greatest possible material throughput. This is preferably done by controlling the material-supplying components, for example a vibrating feed channel, in dependence on the level of the crusher measured with the aid of the filling level sensor.
- a reliable determination of the present mechanical load of the crusher can be achieved by measuring the mechanical load and / or the movement behavior of at least one component of the crusher, the transmission elements and / or the crusher drive as and / or dependent on the mechanical load of the crusher in that an operating state of the crusher drive is measured as the parameter dependent on the mechanical load of the crusher.
- the measurement of the mechanical load of the at least one component is preferably carried out on a component of the crusher, the transmission elements or the crusher drive which is heavily loaded mechanically. If it is ensured by the inventive setting of the level that the mechanically heavily loaded component is not overloaded, it can be assumed that the other components of the crusher are driven in their allowable load range.
- transmission elements are understood in the context of the present invention, all components which are provided for torque and / or power transmission from the crusher drive to the crusher.
- the transmission elements and / or the Crusher drive an elastic elongation of the at least one component is determined and that the level of the crusher is set in dependence on the determined elastic strain of the component or a variable derived therefrom.
- the elastic elongation of the at least one component is directly dependent on the mechanical load of the component and thus on the mechanical load of the crusher.
- a simple and reliable measurement of the elastic elongation of the at least one component can be achieved by determining the elastic elongation with at least one sensor, for example a strain gauge (DMS).
- the at least one strain gauge can be easily attached to the component to be monitored.
- a mechanical stress of the at least one component of the crusher, the transmission elements or the crusher drive is determined from the elastic strain and that the level of the crusher in dependence on the mechanical stress of the at least one component of the crusher, the transmission elements or of the crusher drive is adjusted.
- the specific mechanical stress can be compared with permissible stresses of the material used.
- the level of the crusher can be adjusted so that the allowable voltages of the material used in the component, advantageously taking into account a safety factor, are not exceeded.
- the transmission elements and / or the crusher drive acceleration preferably with an acceleration sensor, and / or a speed and / or a speed change, preferably with a Speed sensor, is determined. If the load on the crusher changes, the motion behavior in the drive train changes. This may be a persistent change of the Movement behavior, such as a speed, or to act a short-term change, for example, when readjusted due to a change in the movement behavior, the performance of the crusher drive and a predetermined target speeds is set again. From a change in the movement behavior of the at least one component of the crusher, the transmission elements and / or the crusher drive caused by an altered load of the crusher, the load of the crusher can be deduced.
- the crusher drive When changing the load of the crusher, the rated speed is adjusted by a corresponding power adjustment of the crusher drive.
- the power to be applied by the crusher drive and the associated operating parameters are thus dependent on the present load of the crusher. If the performance of the crusher drive is not readjusted with an alternating load of the crusher, this leads to a change in the speed of the crusher drive. Therefore, it can be provided that the operating state of the crusher drive is determined by a power output and / or by a torque and / or by energy consumption and / or by a fuel consumption and / or by a rotational speed of the crusher drive. These variables are directly related to the load to be applied by the crusher and thus to the mechanical load of the crusher, so that, given their knowledge, a suitable filling level of the crusher can be set.
- An overload of the crusher can be avoided by reducing the level of the crusher, if the mechanical load of the crusher or a directly dependent on the mechanical load of the crusher characteristic exceeds a predetermined upper limit or if an inversely dependent on the mechanical load of the crusher Characteristic falls below a predetermined lower threshold and / or that the level of the crusher is reduced when the mechanical load of the crusher or a directly dependent on the mechanical load of the crusher characteristic within a predetermined first period Ati the predetermined upper Limit value has exceeded a predetermined frequency or over a predetermined period or if a reversed dependent of the mechanical load of the crusher characteristic within the predetermined first period Ati has fallen below the predetermined lower threshold with a predetermined frequency or over a predetermined period.
- the threshold or threshold defines when the permissible load of the crusher is exceeded. If the reduction of the filling level of the crusher occurs even if the limit value is exceeded or falls short of the threshold value, a fast reaction to too high a load on the crusher can be achieved. If the limit value has to be exceeded several times or in total over a given period of time within the predetermined first period Ati in order to achieve a reduction of the fill level, the reliability of the statement can be increased in the evaluation of the load on the breaker. The same applies to the undershooting of the threshold for the opposite of the mechanical stress of the crusher characteristic.
- the specification of a frequency of exceeding the limit value or falling below the threshold value is particularly advantageous in jaw crushers, since they are exposed to the cyclic opening and closing of the movable crushing jaw of a cyclic load.
- a high throughput of the crusher can be achieved that the level of the crusher is increased when the mechanical load of the crusher or a directly dependent on the mechanical load of the crusher characteristic does not exceed a predetermined lower limit over a predetermined second period At 2 or an inversely dependent on the mechanical load of the crusher characteristic does not fall below a predetermined upper threshold value over the predetermined second period At 2 and / or that the level of the crusher is increased when the mechanical load of the crusher or directly dependent on the mechanical load of the crusher Parameter exceeds the predetermined lower limit value over the predetermined second period At 2 not more than a predetermined second frequency or longer than a predetermined duration, or if a reversely dependent on the mechanical load of the crusher Ken do not exceed the predetermined upper threshold over the given second period of time with more than one predetermined second frequency or longer than a predetermined duration.
- a permanent falling below the limit or exceeding the threshold value a low mechanical load of the crusher can be detected.
- the throughput of the crusher can be increased without being overloaded. This allows an economical operation of the crusher
- the filling level of the crusher is reduced and / or increased in each case by a predetermined, absolute amount or that the filling level of the crusher is reduced and / or increased by a value relative to the current filling level.
- Changing the level by absolute amounts is easy to implement. It is advantageous to change the level when reducing and increasing the same, so that certain levels that are optimized for certain tasks, can be set again and again. For changes related relatively to the level present, different changes in the level can be made, for example, it is possible that, starting from large levels, large changes and, starting from small levels, small changes in the level can be made. Of course, applications are conceivable in which to proceed vice versa.
- the crushing ratio describes the ratio of the grain size of the feedstock at 80% throughput to the grain size of the final product at 80% throughput. It is thus achieved with large degrees of crushing of the crusher, a high throughput of the crusher and the material crusher.
- a simple evaluation of the load of the crusher which for example can be easily implemented in a computer program, can be achieved by determining load categories each assigned to a low load, a desired load, or an excessive load of the crusher that successively determines certain mechanical loads Loads of the crusher or successively determined values of the dependent of the mechanical load of the crusher characteristic are each assigned to a load category. Depending on the load category to which the determined loads or characteristic values have been assigned, the fill level can then be set.
- the level of the crusher is reduced when a predetermined number of determined loads of the crusher or values of the load-dependent characteristic of an excessive load assigned load category are assigned over a predetermined first period of time, that the level of the crusher is increased if over a predetermined second period of time, a predetermined number of determined loads or values of the load-dependent characteristic of a low load assigned load category are assigned and that the level is not changed when the determined loads or the values of the load dependent characteristic of a desired load assigned load category.
- the level of the crusher is adjusted depending on the assignment of the determined load of the crusher or the dependent thereon characteristic in the respective load categories.
- Breakers usually have a cyclic load, with periodically repeating, maximum loads occur. These maximum loads must at least not permanently exceed the maximum load of the crusher. Therefore, it may be provided that at a periodic alternating load of the crusher, the maximum values of the load of the crusher or the values assigned to the maximum values of the characteristic dependent on the load of the crusher characteristic value are determined and that the level of the crusher depending on the maximum values of the load of the crusher or the maximum values associated with the values of the Load of the crusher dependent characteristic value is set.
- control device for operating a material-reduction plant with a crusher, wherein the control device is designed to carry out at least the following steps:
- the control device thus makes it possible to carry out the method described above.
- the object of the invention is further achieved by a computer program product which can be loaded directly into the internal memory of a digital computer and comprises software code sections with which the steps according to one of claims 1 to 14 are executed when the product is run on a computer.
- the object of the invention is also achieved by a computer program product stored in a computer-usable medium comprising computer-readable program means by which a computer can execute the method according to one of claims 1 to 14.
- the computer program products can be easily implemented in a control unit of the material crusher. You can advantageously fall back on measurement signals of an existing level sensor, which is connected to the control unit. Furthermore, you can apply to already existing Control systems, with which the material-supplying components are regulated in response to the signal of the level sensor, act. The process can be integrated cost-effectively into existing material crushers by a simple software extension.
- Figure 1 in a side, partially cut view of a
- FIG. 2 is an enlarged perspective view of the crusher shown in FIG. 1,
- FIG. 4 shows in a simplified representation a screen output of different load categories.
- FIG. 1 shows, in a lateral, partially sectioned illustration, a material shredding installation 10 with a crusher 50.
- the material shredding installation 10 can be designed as a mobile installation with a chassis 11 and a chain drive 13. It has a task unit 20, if necessary a pre-screening 30, the crusher 50 and at least one crusher discharge belt 40.
- a funnel 21 can be arranged in the area of the task unit 20, in the area of the task unit 20, a funnel 21 can be arranged.
- the funnel 21 has funnel walls 22. It directs the feed material 70 fed to a vibrating feed channel 23.
- the vibrating feed channel 23 conveys the feed material 70 to a double-decker pre-screen 31 of the pre-screening 30.
- the double-decker Schwer consortiumsieb 31 has a designed as a comparatively coarse screen upper deck 32 and designed as a comparatively fine sieve lower deck 34. It is offset by a drive 33 in a circular oscillation.
- the upper deck 32 separates a fines 71 and a middle grain 72 from the material 73 to be crushed.
- the lower deck 34 separates the fines 71 from the center grain 72.
- the fines 71 may optionally be fed from the material crusher 10 or fed to the center core 72 by a corresponding position of a bypass flap become.
- the center grain 72 is passed via a bypass past the crusher 50 to the crusher discharge belt 40.
- the material 73 to be broken is fed to the crusher 50 via a crusher inlet at the end of the preliminary screening 30.
- the crusher 50 is designed as a jaw crusher. However, it is also conceivable to provide other crushers 50, such as impact crushers or cone crushers.
- the crusher 50 has a fixed crushing jaw 51 and a moving crushing jaw 52. These are aligned obliquely to each other, so that between them is formed to a crushing gap 56 conically tapering shaft.
- the moving crushing jaw 52 is driven by an eccentric 54.
- the eccentric 54 may be connected via a drive shaft 55 to a drive unit 12 of the material shredder 10.
- the drive unit 12 serves as a breaker drive. It can also be used as a drive for the conveyors and the chain drive and possibly other moving components of the material crusher 10.
- the moving crushing jaw 52 is in an elliptical motion on the fixed crushing jaw 51 and moved away from it. During such a stroke, the distance between the crushing jaws 51, 52 in the region of the crushing gap 56 changes as well. The movement of the moving crushing jaw 52 further crushes the material 73 to be crushed along the conical shaft until it has reached a grain size which allows him to leave the shaft through the crushing nip 56. The crushed material 74 falls on the crusher strip 40 and is further conveyed therethrough. It can also be provided, for example, that it passing a magnetic separator 41 which separates metallic magnetic components from the crushed material 74 and ejects them laterally.
- the crusher 50 is associated with a level sensor 61.
- the level sensor 61 is shown schematically in FIG. He is presently designed as an ultrasonic sensor. However, it is also conceivable to use other sensor types, for example optical sensors (for example a camera system) or mechanically acting sensors.
- the filling level sensor 61 monitors the filling level of the crusher 50 with material 73 to be broken. It is part of a continuous feeding control of the material shredding plant 10. For this, the material-supplying components of the material shredding plant 10, in particular the vibrating feed channel 23 and / or the double-decker pre-screen 31, are corresponding to the signals the liquid level sensor 61 is controlled and thus the volume flow of the crusher 50 supplied, to be crushed material 73 regulated.
- FIG. 2 shows, in an enlarged perspective view, the crusher 50 shown in FIG. 1.
- the shaft of the crusher 50 tapering towards the crushing gap 56 can be clearly seen between the two crushing jaws 51, 52, the material 73 to be crushed via the preliminary screening 30 is supplied.
- the moving crushing jaw 52 is driven via the eccentric 54.
- the moving crushing jaw 52 is mounted on a movably mounted crushing rocker 53, on which the eccentric 54 acts.
- the crushing rocker 53 can be supported by a pressure plate 58.
- the pressure plate 58 is connected to the breaker rocker 53 opposite to a gap adjustment 57. With the help of the gap adjustment 57, the width of the crushing gap 56 and thus the grain size of the crushed material 74 can be adjusted.
- the level sensor 60 shown schematically in Figure 1 is not shown in Figure 2, but it is provided for monitoring the level.
- the pressure plate 58 is a component of the crusher 50. It is exposed during operation of the crusher 50 high mechanical loads. These loads are representative of the load on the crusher 50 as a whole. In this case, the load of the crusher 50 and thus the pressure plate 58 changes cyclically with the Movement of the moving crushing jaw 52. The maximum loads occur during a working stroke in which the moving crushing jaw 52 moves toward the fixed crushing jaw 51. These maximum loads lead to the greatest wear of the components of the crusher 50. If the maximum loads are too great, this can lead to damage of the crusher 50, the crusher drive or the transmission elements (eg eccentric 54).
- a strain gauge (DMS) 60 may be attached to the pressure plate 58 or other, force-transmitting component connected to the pressure plate 58.
- the strain gauge 60 measures the elastic strain of the pressure plate 58 or a force transmitting member. It is thus a measure of the mechanical loading of the pressure plate 58. It is thus also a measure of the mechanical load of the crusher 50.
- the elongation of the pressure plate 58 represents a dependent of the mechanical load of the crusher 50 characteristic.
- the level of the crusher 50 depending on the specific mechanical load of the crusher 50 or a dependent characteristic set. This is done by appropriate control of one or more of the breaker 50 to be crushed material 73 supplying components as a function of the determined with the level sensor 61 level.
- FIG. 3 shows measured values for a mechanical stress of a component of the crusher 50 shown in FIGS. 1 and 2 in a voltage-time diagram.
- maximum voltage values 84 as occur in successive strokes of the jaw crusher of the formed crusher 50, are opposite a voltage axis 80 and a time axis 81 plotted.
- the maximum voltage values are shown with a very low frequency. In practice, significantly more strokes can be performed per unit time and evaluated according to the following representation.
- the maximum stress values 84 are measured on the pressure plate 58 with the aid of the strain gauges 60 shown in FIG.
- An upper limit 82 and a lower limit 83 for the voltages are indicated as horizontal dotted lines.
- the measured maximum voltage value 84 exceeds the upper limit value 82.
- a first time period Ati begins
- the first period Ati 86.1 is 2 minutes. It starts at a first time ti 85.1 and ends at a third time t 3 85.3. If a predetermined number of maximum voltage values 84 exceeds the upper limit value 82 within the first period Ati 86.1, an overloading of the breaker 50 is assumed. In the exemplary embodiment shown, an overloading of the crusher 50 is assumed if, within the first period Ati 86.1, three maximum voltage values 84 exceed the upper limit value 82. In the present case, this takes place at a second time t 2 85.2. From this second time t 2 85.2, the level of the crusher 50 is reduced. At the same time, a first waiting period At b iind starts 1 86.2.
- the determined maximum voltage values 84 are not evaluated and / or no further adjustment of the filling level is carried out. This provides sufficient time to adjust the level of the crusher 50 according to the new specifications.
- the first waiting period Atbiind 1 86.2 is two minutes. It ends at a fourth time t 85.4. After the first waiting period Atbiind 1
- the maximum voltage values 84 are recorded again and evaluated. If these lie between the two limit values 82, 83, there is no further correction of the fill level. If the maximum voltage values 84 fall below the lower limit value 83, as shown by way of example at a fifth time point t 5 85.5, then a second time period At 2 86.3 begins to run. In the present case, the second period At 2 86.3 lasts one minute. It thus ends at a sixth time t 6 85.6.
- the fill level of the breaker 50 becomes 50 after the second time period At 2 86.3 has elapsed, ie at the sixth time point t 6 85.6 elevated.
- a waiting period (second waiting period Atbiind 2 86.4) begins to run with the change of the filling level.
- the second waiting period Atbiind 2 86.4 in the present case is two minutes and thus corresponds to the first waiting period At b
- the duration of the waiting periods Atbiind 1/2 86.2, 86.4 the same.
- the maximum voltage values 84 are not measured or evaluated and / or there is no adjustment of the fill level.
- the second waiting period Atbiind 2 86.4 thus offers sufficient time for the new filling level of the crusher 50 to be established.
- the maximum voltage values 84 are monitored again.
- the maximum stresses, in this case the pressure plate 58 as a component of the crusher 50 thus become within a predetermined value Area regulated.
- Area regulated By virtue of the present correlation of the loading of the pressure plate 58 with that of the entire crusher 50, its load can thus be kept within a permissible range. As a result, an overload of the crusher 50, the crusher drive and the transmission elements is avoided. At the same time a maximum throughput of the crusher 50 is reached, which is possible without overloading the crusher 50.
- FIG. 4 shows in a simplified representation a screen output of different load categories 91, 92, 93, 94, 95.
- the load categories 91, 92, 93, 94, 95 respectively correspond to load areas of the crusher 50 or a component of the crusher 50, the crusher drive or the transmission elements .
- a first load category 91 includes loads that occur when the breaker 50 idles.
- a second load category 92 corresponds to a range of low and a third load category 93 to a range with a slightly greater load on the crusher 50.
- a fourth load category 94 includes the range of a desired load of the crusher 50. In this range, damage to the crusher 50 or excessive Wear of the crusher 50 are excluded by overload. At the same time, a high throughput of the crusher 50 is achieved. Transferred to the diagram shown in FIG. 3, the fourth load category 94 is in the range between the upper and lower limit values 82, 83.
- a fifth Load category 95 includes a load range that results in overloading the crusher 50, crusher drive, or
- the measured load or the associated characteristic of the crusher 50, a component of the crusher, the crusher drive or the transmission element are assigned to a respective load category 91, 92, 93, 94, 95. If the measured loads of the crusher 50 or the values of the characteristic associated therewith are assigned to a predetermined number of strokes of the fifth load category 95 within a certain period of time (first period Ati 86.1, see FIG. 3), then the level of the crusher 50 is reduced. Subsequently, a time window of a predetermined duration, in which no determination or evaluation of the load of the crusher 50 or the characteristic dependent thereon and / or no further adjustment of the filling level takes place. During this time window of, for example, two minutes, the filling level of the crusher 50 is reduced.
- the filling level is not changed. If the measured loads of the crusher 50 or the values of the characteristic associated therewith are assigned to the fourth loading category 94, the filling level is not changed. If the measured loads of the crusher 50 or the values of the characteristic associated therewith are in the range of the second and third load categories 92, 93 for a predetermined second period of time (second period At 2 , 86.3 in FIG. 2), then the level of the crusher 50 is increased.
- the assignment of the measured loads in load categories 91, 92, 93, 94, 95 allows a simple implementation of the method by an appropriate software. This can be implemented, for example, in a control unit of the material shredder 10.
- the load of the crusher 50 or a characteristic associated therewith is thus determined.
- the elongation of a highly loaded component of the crusher 50, the transmission elements or the crusher drive is detected, which occur as a result of a mostly periodic force introduction into the structure.
- other parameters characterizing the load of the crusher 50 can also be used for the evaluation, for example the load or the movement behavior a component of the crusher 50, the crusher drive or the transfer elements between the crusher drive and the crusher 50.
- the elongation can be easily determined with at least one strain gauge 60.
- This is preferably attached to a mechanically particularly heavily loaded component of the crusher, the crusher drive or the transmission elements. From the measured by means of the strain gauge 60 strain mechanical stresses can be calculated. These can be compared with permissible stresses of the material used.
- the voltage values measured with each periodic load may be assigned to load categories 91, 92, 93, 94, 95. When exceeding the permissible continuous load of the material crusher 10 and the crusher 50 over a predetermined period of time, the level of the crusher 50 is automatically adjusted until the load is again in a predetermined allowable range.
- the regulation is preferably carried out with the aid of an appropriately trained software.
- the method detects the resulting load independently of these factors and adjusts the level of the crusher 50 so that the load on the crusher 50 settles within a desired normal range. This is done by appropriate control of the material-supplying components.
- the strain gauge 60 is attached to the pressure plate 58.
- the strain gauge 60 may be arranged on another highly loaded component of the material comminution system 10.
- the strain gauge 60 for example, at the Brechschwinge 53 or attached to parts of the eccentric 54.
- other methods for example optical methods, for determining the elongation and thus the voltage of the monitored component.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Grinding (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017124958.3A DE102017124958A1 (de) | 2017-10-25 | 2017-10-25 | Verfahren zum lastabhängigen Betrieb einer Materialzerkleinerungsanlage |
| PCT/EP2018/077241 WO2019081186A1 (de) | 2017-10-25 | 2018-10-08 | Verfahren zum lastabhängigen betrieb einer materialzerkleinerungsanlage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3700677A1 true EP3700677A1 (de) | 2020-09-02 |
Family
ID=63799007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18783459.3A Pending EP3700677A1 (de) | 2017-10-25 | 2018-10-08 | Verfahren zum lastabhängigen betrieb einer materialzerkleinerungsanlage |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11383246B2 (de) |
| EP (1) | EP3700677A1 (de) |
| CN (1) | CN111201087B (de) |
| DE (1) | DE102017124958A1 (de) |
| WO (1) | WO2019081186A1 (de) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019126978A1 (de) | 2019-10-08 | 2021-04-08 | Kleemann Gmbh | Gesteinsverarbeitungsmaschine mit verbesserter Bedienkonsole |
| DE102022105346B3 (de) | 2022-03-08 | 2023-08-10 | Kleemann Gmbh | Verfahren zur Ermittlung der Schichthöhe eines Aufgabematerials, das einer Brech- und/oder Siebanlage einer Materialverarbeitungseinrichtung zugeführt wird |
| DE102022105345A1 (de) | 2022-03-08 | 2023-09-14 | Kleemann Gmbh | Verfahren zur Steuerung und/oder Regelung der Zuförderung zu bearbeitenden Materials zu einer Brech- und/oder Siebanlage einer Materialverarbeitungseinrichtung |
| DE102022105343A1 (de) | 2022-03-08 | 2023-09-14 | Kleemann Gmbh | Verfahren zur Steuerung und/oder Regelung der Zuförderung zu bearbeitenden Materials zu einer Brech- und/oder Siebanlage einer Materialverarbeitungseinrichtung |
| US12303909B2 (en) | 2022-06-27 | 2025-05-20 | Deere & Company | Quality monitoring and controls for a comminution system using imaging of material in a discharge stage |
| DE102022118032B3 (de) | 2022-07-19 | 2023-08-10 | Kleemann Gmbh | Mobile Gesteinsverarbeitungsvorrichtung mit verbesserter Planung einer diskontinuierlichen Materialaufgabe |
| DE102022118036B3 (de) * | 2022-07-19 | 2023-08-10 | Kleemann Gmbh | Gesteinsverarbeitungsvorrichtung mit verbesserter Planung des Orts einer Materialaufgabe innerhalb eines Materialpuffers |
| DE102022118042B3 (de) | 2022-07-19 | 2023-08-10 | Kleemann Gmbh | Gesteinsverarbeitungsanlage mit wenigstens zwei Wertkorn-Sieblinien und von den Sieblinienausträgen abhängiger automatisierter Betriebsführung |
| CN115921084B (zh) * | 2022-10-27 | 2026-04-14 | 首钢集团有限公司 | 破碎机允许翻卸的控制方法、装置、介质以及电子设备 |
| US12423337B2 (en) | 2023-01-24 | 2025-09-23 | International Business Machines Corporation | Context-based question generation from communication data |
| EP4470671A1 (de) * | 2023-06-01 | 2024-12-04 | Sandvik SRP AB | Überwachung eines backenbrechers |
| JP2025043905A (ja) * | 2023-09-19 | 2025-04-01 | 株式会社トクヤマ | 多結晶シリコンの破砕装置及び多結晶シリコンの破砕方法 |
| CN117960274B (zh) * | 2024-03-29 | 2024-06-28 | 赣州金环磁选科技装备股份有限公司 | 一种可调节式稀土矿石破碎装置 |
| CN118925907A (zh) * | 2024-09-23 | 2024-11-12 | 包头市昶泰矿业有限责任公司 | 基于plc控制的破碎机自动给料系统 |
| CN119747070A (zh) * | 2025-03-06 | 2025-04-04 | 福建南方路面机械股份有限公司 | 一种破碎机给料量智能控制方法、装置及可读介质 |
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| DE1164216B (de) | 1960-08-26 | 1964-02-27 | Koeppern & Co K G Maschf | Regelungsverfahren fuer unter Druck arbeitende Brecher |
| US3480212A (en) | 1967-02-23 | 1969-11-25 | Reserve Mining Co | Control apparatus |
| DE1809339A1 (de) | 1968-09-26 | 1970-05-14 | Schwermaschb Ernst Thaelmann V | Regeleinrichtung fuer das automatische Beschicken von Zerkleinerungsmaschinen,insbesondere von Kegelbrechern,Backenbrechern u.dgl.sowie auch von Schneckenpressen |
| US4004739A (en) * | 1975-10-24 | 1977-01-25 | Prab Conveyors, Inc. | Crusher and material sensor |
| US4804148A (en) | 1988-02-19 | 1989-02-14 | Etheridge Johnny E | Crusher control system |
| US4909449A (en) | 1989-03-10 | 1990-03-20 | Etheridge Johnny E | Primary crushing stage control system |
| DE19631023C2 (de) * | 1996-08-01 | 1998-06-04 | Krupp Foerdertechnik Gmbh | Vorrichtung zum Verstellen des Brechspaltes an Backenbrechern |
| JP2000171028A (ja) * | 1998-12-01 | 2000-06-23 | Ishikawajima Harima Heavy Ind Co Ltd | 石炭焚火力発電プラントの出炭量制御方法 |
| FR2792224B1 (fr) * | 1999-04-15 | 2001-06-01 | Alstom | Procede pour controler le niveau de remplissage en charbon d'un broyeur a boulets |
| JP2003190834A (ja) * | 2001-12-26 | 2003-07-08 | Mitsubishi Heavy Ind Ltd | 多炭種対応ミル状態推定装置 |
| WO2007051890A1 (en) | 2005-11-02 | 2007-05-10 | Metso Minerals Inc. | A method for controlling a crusher and a crusher |
| SE531298C2 (sv) * | 2007-06-15 | 2009-02-17 | Sandvik Intellectual Property | Krossanläggning och metod för styrning av densamma |
| SE531340C2 (sv) * | 2007-07-06 | 2009-03-03 | Sandvik Intellectual Property | Mätinstrument för en gyratorisk kross, samt sätt att indikera funktionen hos en sådan kross |
| PL2613884T3 (pl) | 2010-09-09 | 2014-11-28 | Hugo Vogelsang Maschb Gmbh | Urządzenie rozdrabniające |
| CN103547372B (zh) * | 2011-05-12 | 2016-11-09 | 布勒股份公司 | 用于粉碎可流动物料中的颗粒的装置和方法 |
| EP2535111B1 (de) * | 2011-06-13 | 2014-03-05 | Sandvik Intellectual Property AB | Verfahren zum Entleeren eines Trägheits-Kegelbrechers |
| CN102284310A (zh) * | 2011-06-27 | 2011-12-21 | 江西稀有金属钨业控股集团有限公司 | 一种颚式破碎机排料口调整装置及其调整方法 |
| EP2556891B1 (de) * | 2011-08-10 | 2014-01-08 | Sandvik Intellectual Property AB | Verfahren und Vorrichtung zum Erfassen der Eigenschaften eines zu zerkleinernden Materials |
| EP2596868B1 (de) * | 2011-11-28 | 2014-04-23 | Sandvik Intellectual Property AB | Verfahren zur Steuerung des Betriebs eines Kegelbrechers |
| EP2868379B1 (de) * | 2013-11-01 | 2016-02-03 | Sandvik Intellectual Property AB | Vorrichtung und Verfahren zur Steuerung eines Backenbrechers |
| US10357777B2 (en) * | 2014-03-31 | 2019-07-23 | Crusher Vision, Inc. | System and method for measuring a closed-side and/or open-side setting of a gyratory crusher |
| CN104549703B (zh) * | 2014-11-18 | 2016-05-18 | 中国矿业大学 | 一种矿用破碎机智能调速的方法 |
| CN106999939A (zh) | 2014-12-16 | 2017-08-01 | 山特维克知识产权股份有限公司 | 多驱动破碎机 |
| FI126226B (fi) * | 2015-04-08 | 2016-08-31 | Metso Minerals Inc | Menetelmä holvauksen tunnistamiseksi murskaimessa, menetelmä kara- tai kartiomurskaimen valvomiseksi ja ohjaamiseksi, kara- tai kartiomurskain, tietokoneohjelma ja murskauslaitos |
| CN205401282U (zh) * | 2016-02-26 | 2016-07-27 | 华侨大学 | 一种破碎机液压控制系统 |
| JP6754094B2 (ja) * | 2016-08-10 | 2020-09-09 | 株式会社サタケ | 穀物調製機械の制御装置 |
| CN205925966U (zh) * | 2016-08-15 | 2017-02-08 | 江苏华海钢结构有限公司 | 可随流量调整转速的新型磨浆机 |
| US11027287B2 (en) * | 2018-07-30 | 2021-06-08 | Metso Minerals Industries, Inc. | Gyratory crusher including a variable speed drive and control system |
-
2017
- 2017-10-25 DE DE102017124958.3A patent/DE102017124958A1/de not_active Withdrawn
-
2018
- 2018-10-08 WO PCT/EP2018/077241 patent/WO2019081186A1/de not_active Ceased
- 2018-10-08 EP EP18783459.3A patent/EP3700677A1/de active Pending
- 2018-10-08 CN CN201880066752.4A patent/CN111201087B/zh active Active
- 2018-10-08 US US16/648,717 patent/US11383246B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111201087A (zh) | 2020-05-26 |
| US20200246804A1 (en) | 2020-08-06 |
| CA3078263A1 (en) | 2019-05-02 |
| WO2019081186A1 (de) | 2019-05-02 |
| DE102017124958A1 (de) | 2019-04-25 |
| US11383246B2 (en) | 2022-07-12 |
| CN111201087B (zh) | 2022-09-02 |
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